Alergia na pszenicę – Etiologia i przyczyny

Alergia na pszenicę
Etiologia i przyczyny

Alergia na pszenicę to immunologiczna nadwrażliwość na białka pszenicy, manifestująca się reakcjami IgE-zależnymi lub niezależnymi od IgE. Reakcje IgE-zależne charakteryzują się szybkim początkiem objawów (minuty do kilku godzin) i mogą prowadzić do pokrzywki, obrzęku, świądu, a nawet anafilaksji. Mechanizm ten opiera się na produkcji specyficznych przeciwciał IgE, które po kontakcie z alergenem wywołują uwolnienie mediatorów zapalnych, takich jak histamina i leukotrieny. Reakcje niezależne od IgE, takie jak eozynofilowe zapalenie przełyku (EoE) i żołądka (EG), rozwijają się wolniej (do 48 godzin) i charakteryzują się przewlekłym naciekiem eozynofilowym i limfocytarnym przewodu pokarmowego, bez uszkodzenia kosmków jelitowych, co odróżnia je od celiakii. Wśród alergenów pszenicy wyróżnia się albuminy, globuliny, gliadyny (prolaminy) oraz gluteniny, a także inhibitory α-amylazy/trypsyny, które są istotne w astmie piekarzy i anafilaksji indukowanej wysiłkiem (WDEIA). WDEIA to specyficzna forma alergii, gdzie objawy pojawiają się tylko po spożyciu pszenicy i wysiłku fizycznym, prowadząc do potencjalnie zagrażającej życiu anafilaksji.

Podstawowe mechanizmy alergii na pszenicę

Alergia na pszenicę jest nadwrażliwością immunologiczną na jeden lub więcej białek znajdujących się w pszenicy. Patofizjologicznie, alergia ta rozwija się, gdy układ odpornościowy organizmu błędnie identyfikuje białka pszenicy jako szkodliwe i produkuje przeciwciała przeciwko nim. Proces ten może przebiegać na dwa główne sposoby: poprzez reakcje zależne od immunoglobuliny E (IgE) lub poprzez mechanizmy niezależne od IgE.¹²

W przypadku reakcji IgE-zależnych, organizm produkuje specyficzne przeciwciała IgE przeciwko białkom pszenicy. Gdy osoba uczulona zostaje ponownie narażona na kontakt z tymi białkami, przeciwciała IgE wiążą się z nimi, co prowadzi do uwolnienia mediatorów zapalnych, takich jak histamina, czynnik aktywujący płytki krwi i leukotrieny z komórek tucznych i bazofili. To uwolnienie mediatorów zapalnych powoduje objawy alergiczne.²³

Produkcja IgE jest prawdopodobnie spowodowana przełamaniem tolerancji pokarmowej i w rezultacie dysregulacją immunologiczną z przewagą odpowiedzi limfocytów T pomocniczych typu 2, co prowadzi do uwrażliwienia i produkcji IgE przez limfocyty B.²

Reakcje niezależne od IgE charakteryzują się przewlekłym naciekiem eozynofilowym i limfocytarnym przewodu pokarmowego. Mechanizm tych reakcji nie jest jeszcze w pełni poznany, ale prowadzą one do stanów zapalnych przewodu pokarmowego, takich jak eozynofilowe zapalenie przełyku lub eozynofilowe zapalenie żołądka.¹⁴

Reakcje IgE-zależne i niezależne

Reakcje IgE-zależne są charakteryzowane przez obecność specyficznych przeciwciał IgE przeciwko pszenicy i mogą mieć potencjalnie śmiertelne konsekwencje. Objawy tych reakcji pojawiają się zwykle w ciągu minut do kilku godzin po spożyciu pszenicy. Reakcje te mogą prowadzić do typowych objawów alergicznych, w tym pokrzywki, świądu, obrzęku, a w najcięższych przypadkach – anafilaksji.³⁵

Reakcje niezależne od IgE angażują układ odpornościowy, ale nie przeciwciała IgE. Reakcja alergiczna na pszenicę jest w tym przypadku wolniejsza niż w reakcji IgE-zależnej i może rozwinąć się nawet do 48 godzin po spożyciu pszenicy. Reakcje te mogą obejmować stany takie jak eozynofilowe zapalenie przełyku (EoE) lub eozynofilowe zapalenie żołądka (EG). EoE powoduje stan zapalny w przełyku, czyli rurze łączącej jamę ustną z żołądkiem, a EG powoduje stan zapalny w błonie śluzowej żołądka.⁶⁵

Warto podkreślić, że w przeciwieństwie do celiakii, która jest również reakcją na białka pszenicy, alergia na pszenicę nie prowadzi do uszkodzenia kosmków jelitowych. W alergii na pszenicę nie obserwuje się uszkodzenia komórek na kosmkach jelitowych, co jest charakterystyczne dla celiakii.⁷

Białka pszenicy wywołujące alergie

Pszenica zawiera wiele różnych białek, które mogą wywoływać reakcje alergiczne. W istocie, zidentyfikowano co najmniej 27 potencjalnych alergenów w pszenicy, ale nie każdy reaguje na te same z nich.⁸⁹ Pszenica zawiera cztery główne klasy białek magazynujących: albuminy, globuliny, prolaminy i gluteliny.⁸

Główne białka pszenicy, które mogą wywołać alergię to:

Albuminy – jedna z klas białek pszenicy wywołujących alergie¹⁰¹¹
Globuliny – kolejna klasa białek pszeniczych związanych z reakcjami alergicznymi¹⁰¹¹
Gliadyny (rodzaj prolamin) – związane z cięższą postacią alergii na gluten¹⁰⁸
Gluten (mieszanka gliadyn i glutenin) – główny alergen w pszenicy¹⁰⁸

Inne białka zdolne do wywoływania alergii to inhibitory α-amylazy/trypsyny, które wiążą się ze specyficznym IgE i są jednym z najczęstszych alergenów pszenicy odpowiedzialnych za astmę piekarzy, anafilaksję i w niektórych przypadkach anafilaksję zależną od pszenicy indukowaną wysiłkiem (WDEIA).⁴

Glutenina (glutelina pszeniczna) jest dominującym alergenem w pszenicy. Zidentyfikowano dziewięć podjednostek gluteniny o niskiej masie cząsteczkowej (LMW-gluteniny), które mają związek z alergiami na pszenicę.⁸

Poza białkami glutenowymi, alergię mogą wywołać także białka nieglutenewe, takie jak inhibitory α-amylazy/trypsyny i białka przenoszące lipidy (LTP), kupiny i profiliny, które są ważnymi epitopami komórek B.¹²

Typowe sekwencje pierwotne znajdowane w gliadynach, które wywołują tę alergię, to QQIPQQQ, PQQPFP, QQQFPGQQQQ oraz podobne peptydy z gliadyny i gluteniny.¹²

Anafilaksja indukowana wysiłkiem zależna od pszenicy

Szczególnym typem alergii na pszenicę jest anafilaksja indukowana wysiłkiem zależna od pszenicy (WDEIA). W tym przypadku objawy alergiczne pojawiają się tylko wtedy, gdy osoba wykonuje ćwiczenia fizyczne w ciągu kilku godzin po spożyciu pszenicy. Zmiany indukowane wysiłkiem w organizmie albo wyzwalają reakcję alergiczną, albo pogarszają odpowiedź układu immunologicznego na białko pszenicy.¹⁰

WDEIA jest przypisywana omega-gliadynie, która jest spokrewniona z białkiem wywołującym celiakię. Stan ten zwykle skutkuje zagrażającą życiu anafilaksją, a jego objawy obejmują nudności, pokrzywkę i atopię.⁸¹³

W WDEIA gliadyny pszenicy lub podjednostka gluteniny o wysokiej masie cząsteczkowej przedostają się do krwiobiegu podczas wysiłku, gdzie wywołują ostry atak astmy lub reakcję alergiczną.⁸

Kombinacja spożycia pszenicy i wysiłku wywołuje ciężką reakcję i możliwą anafilaksję, co jest czasami nazywane „Wstrząsem Biegacza”.¹³¹⁴

Czynniki genetyczne i środowiskowe

Alergia na pszenicę, podobnie jak inne alergie pokarmowe, jest wynikiem złożonych interakcji między czynnikami genetycznymi i środowiskowymi. Choć dokładne przyczyny nie są w pełni zrozumiane, istnieje kilka czynników, które mogą zwiększać ryzyko rozwoju tej alergii.¹⁵¹⁶

Predyspozycje genetyczne

Predyspozycje genetyczne odgrywają znaczącą rolę w rozwoju alergii na pszenicę:

Historia rodzinna: Jeśli członkowie rodziny mają alergie na pszenicę lub inne produkty spożywcze, ryzyko rozwoju alergii na pszenicę jest wyższe.¹⁷¹⁸
Obecność innych chorób alergicznych: Osoby z astmą, egzemą lub innymi chorobami alergicznymi mają zwiększone ryzyko rozwoju alergii na pszenicę.¹⁹²⁰
Różnice etniczne: Niektóre grupy etniczne mogą lepiej tolerować pszenicę niż inne, co sugeruje genetyczne uwarunkowania zdolności do trawienia białek pszenicy.²¹

Badania wskazują, że jeśli oboje rodzice mają alergie, prawdopodobieństwo rozwoju alergii pokarmowej, w tym alergii na pszenicę, jest większe niż w przypadku, gdy tylko jeden rodzic ma alergie.¹⁹

Czynniki środowiskowe

Czynniki środowiskowe mogą również przyczyniać się do rozwoju alergii na pszenicę:

Wczesne narażenie na białka pszenicy: Czas pierwszego kontaktu z ziarnami zbóż może modyfikować ryzyko alergii na pszenicę.¹²
Zmiany w diecie: Społeczne zmiany w nawykach żywieniowych i spożywanie dodatków do żywności mogą wpływać na rozwój alergii.²²
Nadmierna higiena we wczesnym dzieciństwie: Teoria „hipotezy higienicznej” sugeruje, że brak wczesnego narażenia na czynniki zakaźne może zwiększać podatność na choroby alergiczne.²²²³
Wysokie poziomy ekspozycji na pszenicę: Zarówno w diecie, jak i w środowisku zawodowym (np. piekarze) mogą zwiększać ryzyko rozwoju alergii.²²¹
Reakcja krzyżowa z innymi alergenami: Białka obecne w pszenicy są podobne do tych znajdujących się w niektórych trawach, co może prowadzić do reakcji krzyżowych u osób uczulonych na trawy takie jak życica, tymotka i rajgras.¹⁸

Ponadto, metody przetwarzania mogą modyfikować białka pszenicy, czyniąc je bardziej prawdopodobnymi do wywołania reakcji alergicznej.¹⁸

Formy alergii na pszenicę

Alergia na pszenicę może manifestować się w różnych formach, które różnią się mechanizmami immunologicznymi i objawami klinicznymi. Rozpoznanie specyficznej formy alergii na pszenicę jest kluczowe dla właściwego leczenia i zarządzania chorobą.¹²²

Alergia pokarmowa na pszenicę

Klasyczna forma alergii na pszenicę to alergia pokarmowa, która jest reakcją IgE-zależną na spożycie pszenicy. Jest to jedna z najczęstszych alergii pokarmowych, dotykająca około 2 milionów dorosłych w Stanach Zjednoczonych.²²

Objawy alergii pokarmowej na pszenicę mogą obejmować:

Problemy skórne: pokrzywka, świąd, obrzęk¹²
Objawy żołądkowo-jelitowe: nudności, wymioty, bóle brzucha, biegunka²⁴
Objawy oddechowe: kichanie, świszczący oddech, trudności w oddychaniu²⁵
W najcięższych przypadkach: anafilaksja¹⁹

Alergia pokarmowa na pszenicę jest częstsza u dzieci niż u dorosłych, a około 65% dzieci wyrasta z tej alergii do czasu dojrzewania.¹⁹²⁶

Alergia oddechowa na pszenicę

Alergia oddechowa na pszenicę, znana również jako „astma piekarzy”, jest reakcją alergiczną na wdychanie mąki pszennej. Jest to jedna z najczęstszych chorób zawodowych układu oddechowego, dotykająca głównie piekarzy i pracowników przemysłu spożywczego, którzy mają znaczący powtarzalny kontakt z mąką pszenną.¹²⁷

Objawy alergii oddechowej na pszenicę mogą obejmować:

Kaszel²⁸
Świszczący oddech²⁸
Trudności w oddychaniu²⁸
Objawy podobne do astmy¹

Ta forma alergii również angażuje IgE i po rozpoczęciu reakcji, postępuje podobnie jak tradycyjna alergia pokarmowa.²²

Eozynofilowe zapalenie przełyku i żołądka

Eozynofilowe zapalenie przełyku (EoE) i eozynofilowe zapalenie żołądka (EG) to choroby ogólnoustrojowe związane z przewlekłym stanem zapalnym przełyku (EoE) lub żołądka (EG). Stan zapalny wynika z aktywności wywołanej przez pszenicę białej krwinki zwanej eozynofilem.²²

EoE jest coraz częściej rozpoznawaną alergią pokarmową, która dotyka głównie kaukaskich, atopowych mężczyzn. Pszenica jest jednym z głównych czynników wyzwalających chorobę, a diagnoza opiera się na obecności co najmniej 15 eozynofili na pole widzenia o dużym powiększeniu w jednej biopsji przełyku po 8 tygodniach leczenia inhibitorami pompy protonowej.⁴

Jest to całkowicie inny proces niż reakcja zależna od IgE w tradycyjnej lub oddechowej alergii na pszenicę, a objawy rozwijają się dłużej.²²

Alergia na pszenicę a inne choroby związane z glutenem

Alergia na pszenicę jest często mylona z innymi zaburzeniami związanymi z glutenem, takimi jak celiakia czy nieceliakalna wrażliwość na gluten, ze względu na podobne objawy. Jednak istnieją istotne różnice w mechanizmach patofizjologicznych i konsekwencjach tych stanów.¹³¹⁹

Alergia na pszenicę vs. celiakia

Celiakia jest chorobą autoimmunologiczną wywoływaną przez reakcję na gluten, białko znajdujące się w pszenicy, życie i jęczmieniu. W celiakii układ odpornościowy atakuje własne tkanki organizmu, zwłaszcza błonę śluzową jelita cienkiego, co prowadzi do zaniku kosmków jelitowych i upośledzenia wchłaniania składników odżywczych.²⁹

Główne różnice między alergią na pszenicę a celiakią to:

Mechanizm immunologiczny: Alergia na pszenicę jest reakcją IgE-zależną lub niezależną od IgE na białka pszenicy, podczas gdy celiakia jest chorobą autoimmunologiczną związaną z przeciwciałami przeciw transglutaminazie tkankowej.³⁰⁷
Wpływ na jelita: W alergii na pszenicę nie obserwuje się uszkodzenia kosmków jelitowych, co jest charakterystyczne dla celiakii.⁷
Szybkość reakcji: Alergia na pszenicę może prowadzić do natychmiastowej reakcji, natomiast celiakia zazwyczaj powoduje przewlekłe objawy.³¹
Leczenie: W przypadku alergii na pszenicę konieczne jest unikanie pszenicy, ale można tolerować gluten z innych źródeł niż pszenica. W celiakii konieczne jest całkowite wykluczenie glutenu, niezależnie od jego źródła.³¹³⁰

Alergia na pszenicę vs. nieceliakalna wrażliwość na gluten

Nieceliakalna wrażliwość na gluten (NCGS), znana również jako nieceliakalna wrażliwość na pszenicę (NCWS), to stan, w którym usunięcie glutenu z diety łagodzi objawy, mimo negatywnych wyników testów na celiakię i alergię na pszenicę.³²

Różnice między alergią na pszenicę a NCGS:

Mechanizm: W NCGS mechanizm nie jest jeszcze w pełni poznany, ale badania sugerują, że może to być reakcja immunologiczna na inne składniki pszenicy niż gluten, takie jak inhibitory amylazy-trypsyny (ATI) lub fruktany (znajdujące się w FODMAP).³²
Diagnoza: NCGS jest diagnozowane przez wykluczenie, gdy wykluczono zarówno celiakię, jak i alergię na pszenicę.³²
Objawy: Objawy NCGS mogą obejmować wzdęcia, gazy, biegunkę, podobnie jak w alergii na pszenicę i celiakii, ale mechanizm ich powstawania jest inny.¹⁴

Badania przeprowadzone w 2016 roku przez zespół naukowców z Columbia University Medical Center potwierdziły, że ekspozycja na pszenicę w przypadku NCGS faktycznie wywołuje ogólnoustrojową reakcję immunologiczną i towarzyszące uszkodzenie komórek jelitowych. Jednak badania nie potwierdziły, że to gluten jest czynnikiem wyzwalającym tę reakcję immunologiczną, jak ma to miejsce w przypadku celiakii.³²

Diagnostyka alergii na pszenicę

Diagnostyka alergii na pszenicę jest złożonym procesem, który wymaga dokładnej oceny historii medycznej pacjenta, testów alergicznych i często próby eliminacji lub prowokacji. Prawidłowa diagnoza jest kluczowa, aby odróżnić alergię na pszenicę od innych zaburzeń związanych z glutenem, takich jak celiakia czy nieceliakalna wrażliwość na gluten.²⁶⁷

Wywiad medyczny i badanie fizykalne

Pierwszym krokiem w diagnostyce alergii na pszenicę jest dokładny wywiad medyczny, który powinien obejmować:

Historię objawów i ich związek z spożyciem pszenicy³³
Rodzinną historię alergii i chorób autoimmunologicznych³⁴
Obecność innych chorób alergicznych (astma, egzema, katar sienny)³⁴
Ocenę czynników wyzwalających i okoliczności występowania objawów³⁴

Badanie fizykalne może pomóc w ocenie ogólnego stanu zdrowia i wykryciu objawów sugerujących alergię, takich jak zmiany skórne, problemy oddechowe czy objawy ze strony przewodu pokarmowego.³⁴

Testy alergiczne

Do potwierdzenia diagnozy alergii na pszenicę stosuje się kilka rodzajów testów:

Testy skórne (skin prick tests): W tym teście alergeny są aplikowane na skórę, a następnie wykonuje się małe nakłucie. Pojawienie się bąbla wskazuje na reakcję alergiczną.¹⁹³⁴
Testy krwi na specyficzne IgE: Mierzą poziom przeciwciał IgE specyficznych dla pszenicy we krwi. Poziom przeciwciał specyficznych dla pszenicy IgE we krwi może pomóc określić prawdopodobieństwo wystąpienia objawów po spożyciu pszenicy.¹³³³
Doustne próby prowokacyjne: Pod nadzorem medycznym pacjent spożywa małe ilości pszenicy, a następnie obserwuje się reakcję. Jest to najbardziej bezpośredni sposób diagnozy, ale niesie ze sobą ryzyko wystąpienia poważnych reakcji alergicznych.³⁴²⁸

Różnicowanie z innymi chorobami

Ważne jest, aby odróżnić alergię na pszenicę od innych chorób związanych z glutenem i pszenicą:

Celiakia: Diagnozowana za pomocą testów serologicznych (przeciwciała przeciwko transglutaminazie tkankowej, przeciwciała przeciwendomyzjalne) i biopsji jelita cienkiego.³⁰
Nieceliakalna wrażliwość na gluten: Diagnozowana przez wykluczenie celiakii i alergii na pszenicę, gdy objawy ustępują po usunięciu glutenu z diety.³²
Nietolerancja pszenicy: W przeciwieństwie do alergii nie angażuje układu odpornościowego.³⁵

Alergolog powinien być w stanie odróżnić IgE-zależną alergię na pszenicę od innych zaburzeń związanych z pszenicą, takich jak celiakia, nieceliakalna wrażliwość na gluten czy nietolerancja FODMAP zawierająca gluten.³⁶

Dokładna diagnoza jest niezwykle istotna, ponieważ różne zaburzenia związane z pszenicą wymagają różnych podejść terapeutycznych i mają różne implikacje dla długoterminowego zdrowia.²⁸

Leczenie i zapobieganie

Obecnie nie ma natychmiastowego lekarstwa na alergię na pszenicę. Leczenie obejmuje unikanie alergenów pszenicy lub opcje takie jak immunoterapia, która może pomóc w odczulaniu pacjenta na alergen.²⁰ Najskuteczniejszą metodą leczenia alergii na pszenicę jest całkowite unikanie białek pszenicy w diecie.³³

Dieta eliminacyjna

Podstawową metodą leczenia alergii na pszenicę jest ścisłe unikanie produktów zawierających pszenicę. Wymaga to dokładnego czytania etykiet produktów spożywczych, gdyż pszenica jest jednym z ośmiu alergenów z określonymi wymogami etykietowania zgodnie z ustawą o etykietowaniu alergenów pokarmowych i ochronie konsumentów (FALCPA) z 2004 roku.¹⁹

Produkty, które osoby z alergią na pszenicę powinny unikać to m.in.:

Otręby, bułka tarta, bulgur, kuskus³⁷
Durum, mąka durum i pszenica durum³⁷
Einkorn, manna, farro (znane również jako emmer)³⁷
Kamut, semolina, kiełkowana pszenica³⁷
Pszenica (otręby, kiełki, gluten, trawa, słód, skrobia)³⁷
Ziarno pszenicy, mąka pszenna (wszystkie rodzaje)³⁷

Dla osób z alergią na pszenicę wyzwaniem może być pieczenie. Choć nie ma prostego zamiennika pszenicy jako składnika, wypieki takie jak chleby, muffiny i ciasta mogą być przygotowywane przy użyciu kombinacji mąk bezpszenicznych, takich jak te wykonane z ryżu, sorgo, soi, tapioki lub skrobi ziemniaczanej.¹⁹

Osoby z alergią na pszenicę mogą często spożywać inne zboża, które nie są pszenicą, takie jak żyto, ryż, kukurydza, jęczmień i owies bez pszenicy.³⁸

Leczenie farmakologiczne

W przypadku wystąpienia reakcji alergicznej można zastosować leki przeciwalergiczne:

Leki przeciwhistaminowe: Mogą być stosowane w leczeniu łagodnych reakcji alergicznych na pszenicę.²⁶
Kortykosteroidy: Leki przeciwzapalne, które mogą być stosowane w leczeniu objawów alergii na pszenicę.²⁶
Epinefryna: W przypadku ciężkich reakcji anafilaktycznych konieczne jest natychmiastowe podanie epinefryny. Osoby z historią ciężkich reakcji alergicznych powinny zawsze nosić przy sobie autostrzykawkę z epinefryną.¹⁹⁷

W przypadku długoterminowej terapii wskazana jest dieta bezpszenična, natomiast w leczeniu ostrym stosuje się epinefrynę lub leki przeciwhistaminowe.¹²

Immunoterapia

Naukowcy pracują nad kilkoma rodzajami immunoterapii w leczeniu alergii pokarmowych. Przeprowadzono kilka małych badań klinicznych dotyczących doustnej formy immunoterapii w leczeniu alergii na pszenicę, które wykazały zmniejszenie objawów alergicznych.³³

Immunoterapia doustna na pszenicę to program, w którym pod nadzorem medycznym podaje się dziecku rosnące ilości pszenicy. Nie jest to lekarstwo na alergię na pszenicę, ale może pomóc przyspieszyć ustąpienie alergii na pszenicę.²⁸

Zapobieganie i monitorowanie

Kluczowe jest regularne monitorowanie stanu zdrowia i ścisłe przestrzeganie zaleceń dietetycznych:

Regularne kontrole w poradni alergologicznej, zwłaszcza w przypadku dzieci²⁸
Szczegółowe czytanie etykiet produktów spożywczych¹⁹
Unikanie krzyżowego zanieczyszczenia żywności³⁹
Posiadanie planu działania w przypadku wystąpienia reakcji alergicznej¹⁹

Osoby z alergią na pszenicę powinny być świadome, że reakcje alergiczne na pszenicę mogą się zmieniać w czasie i że nawet osoby, które wcześniej doświadczały tylko łagodnych objawów, mogą nagle doświadczyć reakcji zagrażającej życiu.¹⁹

Jeśli masz podejrzenie alergii na pszenicę, skontaktuj się z lekarzem, który może skierować cię do specjalistycznej poradni alergologicznej.³⁴

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

Materiały źródłowe

#1 Wheat Allergy – StatPearls – NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK536992/
The etiology of a wheat allergy is either IgE-mediated or non-IgE-mediated allergic reaction to wheat proteins. The result can be life-threatening and can lead to an anaphylactic reaction. Celiac disease is a non-IgE-mediated immune response. IgE mediated reactions are characterized by the presence of wheat-specific IgE antibodies, and can be lethal. Non-IgE mediated reactions cause chronic eosinophilic and lymphocytic infiltration of the gastrointestinal tract. IgE-mediated reactions to wheat can be related to wheat ingestion or wheat inhalation. A food allergy to wheat is more common in children and can be associated with severe anaphylaxis and wheat-dependent exercise-induced anaphylaxis (WDEIA). An inhalation-induced IgE mediated wheat allergy can cause bakers asthma, which is a common occupational disease in bakers who have significant repetitive exposure to wheat flour. Non-IgE mediated food allergy reactions to wheat are mainly eosinophilic esophagitis or eosinophilic gastritis, which are both characterized by chronic eosinophilic inflammation.
#2 Wheat – FoodAllergy.org
https://www.foodallergy.org/living-food-allergies/food-allergy-essentials/common-allergens/wheat
Wheat allergy results from an adverse immunologic (IgE-mediated) reaction to proteins in wheat and reactions can cause typical allergy symptoms involving the skin, gastrointestinal tract, respiratory system, and anaphylaxis in some individuals. […] When a person with a wheat allergy is exposed to wheat, proteins in the wheat bind to specific IgE antibodies made by the persons immune system. This binding triggers the persons immune defenses, leading to reaction symptoms that can be mild or very severe.
#2 Wheat Allergy – StatPearls – NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK536992/
Wheat allergy is the manifestation of mediator release, such as histamine, platelet activator factor, and leukotrienes, from mast cells and basophils. The IgE production is thought to be due to a breach of oral tolerance, and as a result, of type 2 helper T cell-biased immune dysregulation that causes sensitization and B-cell IgE production.
#3 Wheat Allergy – MD Searchlight
https://mdsearchlight.com/allergy/wheat-allergy/
A wheat allergy can be caused by two types of reactions to wheat proteins: IgE-mediated or non-IgE-mediated reactions. […] For some people, their immune system mistakenly recognizes wheat as harmful. This causes an allergic reaction. These reactions are caused by substances in our immune system called Immunoglobulin E (IgE) and other immune responses. […] Both types of allergies are identified by their reactions in the body. IgE-mediated reactions include the production of wheat-specific IgE antibodies and can be life-threatening. Non-IgE mediated reactions can result in long-term inflammation where immune cells like eosinophils and lymphocytes (types of white blood cells) damage the digestive tract. […] A wheat allergy can be caused by two types of reactions to wheat proteins: IgE-mediated or non-IgE-mediated reactions.
#4 Wheat allergy: diagnosis and management | JAA
https://www.dovepress.com/wheat-allergy-diagnosis-and-management-peer-reviewed-fulltext-article-JAA
The major allergens of wheat are listed in Table 1. -Amylase/trypsin inhibitor binds to specific IgE and is one of the most common wheat allergens implicated in bakers asthma, anaphylaxis, and in some cases of WDEIA. […] Wheat can cause IgE mediated and non-IgE mediated allergic reactions. IgE mediated reactions can occur from either ingestion (food allergy) or inhalation (occupational allergy) of wheat. A food allergy is more commonly found in children than in adults and can be associated with severe reactions such as anaphylaxis and WDEIA. […] Non-IgE mediated food allergies to wheat are mainly EoE and EG. EoE is an increasingly recognized food allergy that affects mainly Caucasian, atopic males. Wheat is one of the major triggers of the disease and diagnosis is based on the presence of at least 15 eos/hpf in one esophageal biopsy after 8 weeks of PPI treatment.
#5 Wheat Allergy Symptoms, Testing & Treatment in St. Louis
https://stlouisallergyasthma.com/wheat-allergy/
Wheat allergy is one of the most common food allergies, occurring when your immune system overreacts to wheat that youâve ingested or inhaled. For most people, ingesting wheat is harmless, but for those with a wheat allergy, the immune system mistakenly identifies wheat proteins as harmful invaders, similar to bacteria or viruses. There are four primary proteins in wheat that can trigger an allergic reaction: albumin, gliadin, globulin, and gluten. […] Wheat allergies can affect anyone, though having a family history of allergies increases the likelihood of developing one. Studies suggest that between 0.2% and 1.3% of the global population has a wheat allergy, with approximately 0.4% of children in the United States affected. […] The allergic reactions caused by a wheat allergy can manifest in two forms: Immunoglobulin E (IgE) mediated reactions and non-IgE mediated reactions. In IgE mediated reactions, the body produces IgE antibodies in response to wheat ingestion. These reactions occur quickly, usually within minutes to a few hours of ingesting wheat, and can include severe symptoms like anaphylaxis, which can be fatal.
#5 Wheat Allergy Symptoms, Testing & Treatment in St. Louis
https://stlouisallergyasthma.com/wheat-allergy/
Non-IgE mediated reactions involve the immune system but not IgE antibodies, leading to a slower allergic response. These reactions can take up to 48 hours to develop and may include conditions such as eosinophilic esophagitis (EoE) and eosinophilic gastritis (EG). EoE causes inflammation in the esophagus, while EG leads to inflammation in the stomach lining.
#6 Wheat Allergy | Symptons & Causes | Freedmans Health
https://freedmanshealth.org/disease-conditions/symptoms-causes/wheat-allergy/
A wheat allergy is one of the most common types of food allergies. Your immune system overreacts to wheat you’ve ingested (eaten or drunk) or inhaled (breathed in). […] A wheat allergy causes an allergic reaction in your body. An allergic reaction is your body’s response to an allergen. If you have a wheat allergy, your body may have two different types of reactions: […] If you have a wheat allergy, your body responds by creating immunoglobulin E (IgE) when you eat wheat. […] IgE reactions happen quickly after ingesting or inhaling wheat. […] Non-IgE reactions involve your immune system, but not your IgE antibodies. Your allergic reaction to wheat is slower than an IgE-mediated reaction. […] Reactions may include eosinophilic esophagitis (EoE) or eosinophilic gastritis (EG). EoE causes inflammation in your esophagus, which is the tube that connects your mouth to your stomach. EG causes inflammation in your stomach lining.
#7 Wheat Hypersensitivities | Sean N. Parker Center for Allergy and Asthma Research | Stanford Medicine
https://med.stanford.edu/allergyandasthma/news/news-from-our-center/wheat-hypersensitivities.html
Wheat allergy is also caused by an immune reaction, but it is not an autoimmune disease. It is an IgE-mediated allergy, comparable to peanut allergy. […] Diagnosis of wheat allergy is made through a combination of skin prick tests, measurement of IgE antibody levels, and oral food challenges. […] In wheat allergy, unlike celiac disease, damage to cells on the intestinal villa is not observed. […] Symptoms of wheat allergy can be mild to life-threatening. Reactions can be immediate or delayed. […] Currently, as there are no approved treatments for wheat allergy, avoidance of products containing wheat is the only way to prevent symptoms. […] However, the prompt use of epinephrine is critical during severe anaphylactic reactions. […] The causes underlying this disease are not well understood and this lack of understanding poses a challenge for diagnosis.
#8 Wheat allergy – Wikipedia
https://en.wikipedia.org/wiki/Wheat_allergy
Wheat allergy is an allergy to wheat that typically presents as a food allergy, but can also be a contact allergy resulting from occupational exposure. The exact mechanism of this allergy is not yet clear. Wheat allergy may be immunoglobulin E-mediated or not, and may involve a mast cell response. Wheat allergy is rare; its prevalence in adults was estimated to be 0.21% in a 2012 study in Japan. […] Wheat allergy may be a misnomer. There are many allergenic components in wheat (for example: serine protease inhibitors, glutelins and prolamins), with different responses attributed to different components. Twenty-seven potential wheat allergens have been identified. […] The allergy, or allergies, are often caused by reactions to the storage proteins present in a wheat seed. While many reactions are caused by wheat proteins, allergenic components are also present in other biochemical forms. The most severe response is wheat-dependent exercise-induced anaphylaxis (WDEIA). WDEIA is attributed to an omega gliadin, which happens to be a relative of the protein that causes celiac disease. Symptoms include nausea, urticaria, and atopy.
#8 Wheat allergy – Wikipedia
https://en.wikipedia.org/wiki/Wheat_allergy
Most wheat allergens are proteins, including seed storage proteins, as noted above. There are four major classes of seed storage proteins: albumins, globulins, prolamins and glutenins. […] The relevant prolamins in wheat are gliadins. Gliadins and glutenins form the classic glutensthe causative agents of celiac disease (CD). Distinct immune cells and antibody types differentiate gluten allergy from CD. […] Prolamins (gliadins) are associated with the more severe form of gluten allergy. Glutenin-induced allergies are often less severe. […] Glutenin (wheat glutelin) is a predominant allergen in wheat. Nine subunits of LMW-glutenin have been found to be in connection with wheat allergies. […] At present, many of the allergens of wheat have not been characterized; however, the early studies found many to be in the albumin class. A recent study in Europe confirmed the increased presence of allergies to amylase/trypsin inhibitors (serpins) and lipid transfer protein (LPT), but less reactivity to the globulin fraction. The allergies tend to differ between populations (Italian, Japanese, Danish or Swiss), indicating a potential genetic component to these reactivities.
#8 Wheat allergy – Wikipedia
https://en.wikipedia.org/wiki/Wheat_allergy
Wheat gliadins and potentially oat avenins are associated with another disease, known as wheat-dependent exercise induced anaphylaxis (WDEIA) which is similar to baker’s allergy as both are mediated by IgE responses. In WDEIA, however, the -gliadins or a high molecular weight glutenin subunit, and similar proteins in other Triticeae genera, enter the blood stream during exercise where they cause acute asthmatic or allergic reaction.
#9 Wheat Allergy: Symptoms, Causes, Diagnosis, and Treatment
https://www.verywellhealth.com/wheat-allergy-vs-gluten-allergy-562637
A wheat allergy is an allergic reaction that is induced by eating food products that contain wheat. […] If you have a wheat allergy, your symptoms will be triggered by eating wheat, and in rare instances, by inhaling it (as in baker’s asthma). […] A wheat allergy occurs when your body’s immune system responds to a component of wheat as if it were a harmful substance. […] Like most food allergies, a wheat allergy involves immunoglobulin E (IgE), an immune protein made by your body. This protein triggers a rapid immune reaction that causes the symptoms that are commonly associated with allergies. […] Wheat contains a number of different components. In fact, there are at least 27 different potential allergens (substances that elicit an allergy) found in wheat, and not everyone reacts to the same ones.
#10 Mayo Clinic Health Library – Wheat allergy | Swiss Medical Network
https://www.swissmedical.net/en/healtcare-library/con-20378883
Wheat allergy is an allergic reaction to foods containing wheat. Allergic reactions can be caused by eating wheat and also, in some cases, by inhaling wheat flour. […] Wheat allergy occurs when your body produces antibodies to proteins found in wheat. […] If you have wheat allergy, exposure to a wheat protein primes your immune system for an allergic reaction. You can develop an allergy to any of the four classes of wheat proteins albumin, globulin, gliadin and gluten. […] Some people with wheat allergy develop symptoms only if they exercise within a few hours after eating wheat. Exercise-induced changes in your body either trigger an allergic reaction or worsen an immune system response to a wheat protein. This condition usually results in life-threatening anaphylaxis.
#11 Understanding Wheat Allergy: A Sudden Health Challenge
https://www.coastalallergyasthma.com/allergy-overview/allergy-types/food-allergy/wheat-allergy/
Wheat proteins can be found in a lot of our foods, some are noticeable but others, such as soy sauce, are not so apparent. There are four classes of proteins that may cause an allergy: albumin, globulin, gliadin, and gluten. […] An allergic reaction to wheat can occur through ingesting or even just inhaling wheat flour. […] A wheat allergy is very common in young children, but most people will outgrow their allergy by the age of 16 years old. […] There are four wheat proteins that may cause an allergic reaction: albumin, globulin, gliadin, and gluten. The cause of a wheat allergy is when your immune system believes the protein in wheat to be harmful. […] A wheat allergy can occur if one of four proteins is present.
#12 Wheat Allergy Causes and Symptoms | Blog | BAKERpedia
https://bakerpedia.com/wheat-allergy-causes-and-symptoms/
Typical primary sequences found in gliadins triggering this allergy are QQIPQQQ, PQQPFP, QQQFPGQQQQ and similar peptides from gliadin and glutenin. […] Non-gluten proteins such as -amylase/trypsin inhibitor and lipid transfer proteins (LTP), cupins and profilins, important in B-cell epitopes have also been found to cause wheat allergy. […] Reactions to wheat consumption and the appearance of symptoms after food ingestion can be immediate or delayed. Immediate reactions can occur in 1-2 hours after wheat ingestion. Non-immediate reactions occur from several hours to 1 or 2 days after food intake, and are characterized by eczematous manifestations and loose stools or diarrhea. […] Wheat allergy clinical manifestations can be very similar to those of celiac disease and other types of food allergy. Typical symptoms include: Skin, mouth, and throat (e.g., contact urticaria and contact dermatitis)
#12 Wheat Allergy Causes and Symptoms | Blog | BAKERpedia
https://bakerpedia.com/wheat-allergy-causes-and-symptoms/
Wheat allergy is one type of adverse immunologic reactions to wheat which can impair the quality of life and cause significant morbidity. Allergic reactions to wheat are essentially immunoglobulin E (IgE)-mediated. Although non-IgE-mediated reactions can contribute to wheat allergy, their mechanism is not well understood. […] The two main factors that can increase a persons risk of developing wheat allergy are: Family history: wheat and other food allergies in children seem to be inherited from their parents. The timing of initial exposure to cereal grains and family history may modify the risk of an allergy to wheat. […] Both gluten and non-gluten proteins (mostly enzymes and enzyme inhibitors) have been identified as precipitating agents. […] In wheat and Triticum aestivum, allergens from the profilin (Tri a12), prolamin (Tri a14, Tri a19, Tri a26, Tri a36) and alpha-purothionin (Tri a37) families have been implicated in wheat allergy.
#12 Wheat Allergy Causes and Symptoms | Blog | BAKERpedia
https://bakerpedia.com/wheat-allergy-causes-and-symptoms/
The diagnosis of wheat allergy, as well as other food allergies, relies on the observation of clinical signs, and their timing in response to food challenge. […] Like other food allergies, treatment of wheat allergy is focused on avoidance of food containing heat and similar cereals. Depending on the severity of the condition, two types of treatments are available to allergy sufferers: A wheat-free diet is indicated as long-term therapy. […] Acute treatment includes application of epinephrine or antihistamines.
#13 Wheat Allergy Signs & Symptoms | Allergy Insider
https://corporate.thermofisher.com/diagnostic-education/patient/us/en/allergy-types/celiac-gluten-disorders/wheat-allergy.html
A wheat allergy, like every allergy, is when your immune system identifies wheat proteins as harmful. […] Wheat allergy is most commonly seen in children and is usually outgrown by school-age. […] Intake of wheat in combination with exercise can in rare occasions lead to what some call „Runners Shock” or what is also known as Wheat Dependent Exercise Induced Anaphylaxis (WDEIA). […] The combination of wheat intake and exercise elicits a severe reaction and possible anaphylaxis. […] Some people with a wheat allergy may also react to other grains like rye or barley due to cross-reactivity between gluten proteins. […] Wheat allergy is often confused with other gluten related disorders like celiac disease because both can cause you to have similar symptoms, like bloating, gas or diarrhea.
#13 Wheat Allergy Signs & Symptoms | Allergy Insider
https://corporate.thermofisher.com/diagnostic-education/patient/us/en/allergy-types/celiac-gluten-disorders/wheat-allergy.html
Testing is easy to perform and can help determine whether the symptoms are actually due to a wheat allergy or another disorder on the gluten-related spectrum. […] Learning what causes your symptoms now may also help you avoid more serious issues in the future. […] The level of wheat specific IgE antibodies in someone’s blood can help determine the probability of symptoms occurring when eating wheat. […] A simple blood test together with your medical history can help identify underlying allergen triggers, if you have an allergy.
#14 Wheat Allergy Signs & Symptoms | Allergy Insider
https://corporate.thermofisher.com/diagnostic-education/patient/wo/en/allergy-types/celiac-gluten-disorders/wheat-allergy.html
A wheat allergy, like every allergy, is when your immune system identifies wheat proteins as harmful. Therefore, when you eat wheat, your immune system responds and releases histamine and other chemicals, which then causes your allergic symptoms. […] Wheat allergy is most commonly seen in children and is usually outgrown by school-age. Rarely, it can cause severe reactions like anaphylaxis, a potentially life-threatening reaction that can impair breathing and send the body into shock. […] Intake of wheat in combination with exercise can in rare occasions lead to what some call „Runners Shock” or what is also known as Wheat Dependent Exercise Induced Anaphylaxis (WDEIA). The combination of wheat intake and exercise elicits a severe reaction and possible anaphylaxis. […] Some people with a wheat allergy may also react to other grains like rye or barley due to cross-reactivity between gluten proteins.
#14 Wheat Allergy Signs & Symptoms | Allergy Insider
https://corporate.thermofisher.com/diagnostic-education/patient/wo/en/allergy-types/celiac-gluten-disorders/wheat-allergy.html
Wheat allergy is often confused with other gluten related disorders like celiac disease because both can cause you to have similar symptoms, like bloating, gas or diarrhea. […] Testing is easy to perform and can help determine whether the symptoms are actually due to a wheat allergy or another disorder on the gluten-related spectrum. […] A simple blood test together with your medical history can help identify underlying allergen triggers, if you have an allergy.
#15 Wheat Allergy: Symptoms, Causes, and Best Treatment Options
https://pdmhospital.com/wheat-allergy-symptoms-causes-and-best-treatment-options/
Wheat allergy occurs when the immune system mistakenly identifies proteins in wheat as harmful invaders. […] The exact cause of wheat allergy is not fully understood, but genetic and environmental factors likely play a role. […] If you have a family history of allergies, asthma, or eczema, your risk of developing wheat allergy is higher.
#16 Wheat Allergy: Symptoms, Causes, and Best Treatment Options
https://pdmhomeopathy.com/wheat-allergy-symptoms-causes-and-best-treatment-options/
Wheat allergy occurs when the immune system mistakenly identifies proteins in wheat as harmful invaders. When someone with a wheat allergy consumes wheat, their immune system releases histamines and other chemicals to attack the invader, resulting in allergic symptoms. […] The exact cause of wheat allergy is not fully understood, but genetic and environmental factors likely play a role. If you have a family history of allergies, asthma, or eczema, your risk of developing wheat allergy is higher.
#17 Wheat Allergy Symptoms and Treatment – Food Allergy Institute
https://foodallergyinstitute.com/severe-food-allergies/wheat-allergy-symptoms-and-treatment
A wheat allergy is an allergic response to the proteins present in wheat and foods that contain wheat. […] Wheat allergies are primarily caused by an abnormal immune response to proteins found in wheat. When an individual with a predisposition to a wheat allergy comes into contact with wheat proteins, their immune system mistakenly identifies these proteins as harmful invaders and triggers a wheat allergy reaction. […] A family history of wheat allergies can increase the risk of an individual developing a wheat allergy.
#18
https://www.wyndly.com/blogs/learn/wheat-allergy?srsltid=AfmBOooZf3UhcFWzep-BUuFQz19fq8cSOZ5u_hUokYziwmAq-ss42nCW
A wheat allergy is an adverse immune response to wheat proteins. This allergic reaction can cause symptoms ranging from mild (like hives and itchiness) to severe (such as anaphylaxis). […] Wheat allergy occurs when the body’s immune system mistakenly identifies wheat proteins as harmful and triggers an allergic reaction. This misidentification leads to the production of Immunoglobulin E (IgE) antibodies, which bind to allergens and signal the immune system to release histamine. The release of histamine causes inflammation and the classic allergy symptoms. […] Genetics play a significant role in the development of wheat allergies. If a person has a family history of allergies or allergic conditions such as asthma or eczema, they may be at a higher risk of developing a wheat allergy. […] It’s also important to understand that the proteins found in wheat are similar to those found in certain grasses. This means that individuals allergic to grasses such as ryegrass, timothy grass, and orchard grass may also experience allergic reactions to wheat due to cross-reactivity.
#18
https://www.wyndly.com/blogs/learn/wheat-allergy?srsltid=AfmBOooZf3UhcFWzep-BUuFQz19fq8cSOZ5u_hUokYziwmAq-ss42nCW
Wheat allergies often result from an immune system overreaction to wheat proteins. This is common because wheat is a staple food in many diets, increasing exposure and potential sensitivity. Additionally, processing methods can modify wheat proteins, making them more likely to trigger an allergic response.
#19 Wheat & Gluten Allergy | Symptoms & Treatment | ACAAI Public Website
https://acaai.org/allergies/allergic-conditions/food/wheat-gluten/
If you notice certain symptoms after eating cereal, bread or pasta â for instance, if you develop hives or a rash or get a stomachache, or your nose gets stuffy or runs â you may have a wheat allergy, a condition that affects millions of Americans. […] Wheat allergies, like hay fever and other allergies, develop when the bodyâs immune system becomes sensitized and overreacts to something in the environment â in this case, wheat â that typically causes no problem in most people. […] Generally, you are at greater risk for developing an allergy to any food, including wheat, if you come from a family in which allergies or allergic diseases, such as asthma or eczema, are common. If both of your parents have allergies, youâre more likely to develop a food allergy than someone with only one parent who has allergies.
#19 Wheat & Gluten Allergy | Symptoms & Treatment | ACAAI Public Website
https://acaai.org/allergies/allergic-conditions/food/wheat-gluten/
A wheat allergy reaction can cause symptoms that range from mild to life-threatening; the severity of each reaction is unpredictable. […] People who have previously experienced only mild symptoms may suddenly experience a life-threatening reaction known as anaphylaxis. […] Once youâre diagnosed with a food allergy, your allergist will likely prescribe an epinephrine auto-injector and teach you how to use it. […] If you need more answers about a possible wheat allergy, then itâs time to see an allergist.
#19 Wheat & Gluten Allergy | Symptoms & Treatment | ACAAI Public Website
https://acaai.org/allergies/allergic-conditions/food/wheat-gluten/
Wheat allergy is typically outgrown by adulthood â about 65 percent of children with a wheat allergy will outgrow it by the time they are 12. […] Some indications of an allergy to wheat â stomach cramps, diarrhea and other gastrointestinal symptoms â overlap with those produced by a sensitivity to gluten or by celiac disease, an autoimmune disorder, so itâs crucial to get an accurate diagnosis. […] Diagnosis of an allergy can be made through a skin-prick test or a blood test. […] Managing a wheat allergy â your own or someone elseâs â includes strict avoidance of wheat ingredients in both food and nonfood products. […] Wheat is one of eight allergens with specific labeling requirements under the Food Allergen Labeling and Consumer Protection Act (FALCPA) of 2004. […] A challenging aspect of managing a wheat allergy is baking. While thereâs no simple substitution for wheat as an ingredient, baked goods such as breads, muffins and cakes may be made using a combination of non-wheat flours, such as those made from rice, sorghum, soy, tapioca or potato starch.
#20 Wheat Allergy: Symptoms, causes, diagnosis, and more
https://www.medicalnewstoday.com/articles/174405
People with a wheat allergy have an irregular immune system response to at least one of the proteins in wheat. […] Wheat allergies may affect around 0.2% to 1% of people and are more common in children. Someone with a wheat allergy has a specific antibody to one or several wheat proteins. […] According to the American College of Allergy, Asthma, and Immunology (ACAAI), people may also have a higher risk of developing a wheat allergy if a close relative has a wheat allergy, hay fever, or asthma. […] A wheat allergy is an immune system response. An allergic reaction occurs when the immune system overreacts to a neutral or beneficial substance for a pathogen and attacks it. […] An allergic reaction to wheat involves immunoglobulin antibodies reacting to at least one of the proteins in wheat. Some people may be allergic to only one of the proteins, while others may be allergic to two or more.
#20 Wheat Allergy: Symptoms, causes, diagnosis, and more
https://www.medicalnewstoday.com/articles/174405
Below are some potential triggers of a reaction to wheat: […] Celiac is an autoimmune food sensitivity in which the immune system reacts to gluten, causing inflammation and damage in the small intestine. Some people have celiac disease and a wheat allergy. […] Wheat allergy involves a specific immune system reaction to wheat proteins, which can include gluten. […] Children are more likely to develop a wheat allergy, but it can happen at any age. Allergies can also become more severe throughout life, so people may only notice them as they age. […] There is no immediate cure for a wheat allergy. However, treatment may involve avoiding wheat allergens or options such as immunotherapy, which may help to desensitize a person to the allergen. […] Someone with a wheat allergy can develop an anaphylactic reaction to gluten, which can be life threatening without immediate treatment.
#21 All About Wheat Allergy
https://www.apollohospitals.com/corporate/diseases-and-conditions/all-about-wheat-allergy/
People with a wheat allergy have an abnormal immune system reaction to at least one of the proteins present in wheat. […] Wheat allergy is essentially an allergic reaction to the proteins in wheat: albumins, globulins, glutelins and gliadins. […] Genetic: Some races are able to tolerate wheat better than others. […] Age: Wheat allergy is commonly seen in infants and toddlers and recedes between 3-5 years of age. It is less common in adolescents and adults. […] Occupational: In case of bakers and food service workers handling wheat, inhalation of uncooked wheat can cause allergic reactions such as occupational asthma. […] Wheat allergy should be differentiated from celiac disease in which the protein gluten causes an abnormal reaction in the small intestine of people affected.
#22 Wheat Allergy: Symptoms, Foods to Avoid, and More
https://www.verywellhealth.com/the-wheat-allergy-diet-guide-1324279
A wheat allergy is a common food allergy, affecting approximately 2 million adults in the United States. […] While the underlying immune system mechanisms of allergies have become better understood, healthcare providers still don’t know why some people develop allergies to begin with. Some suspected causes or risk factors include immune system irregularities due to: genetic predisposition, excessive hygiene during early life, the trend away from breastfeeding, consumption of additives in food, societal changes in eating habits, and high levels of wheat exposure (dietary or occupational). […] True wheat allergies come in a few different types, depending on what effect wheat has on your immune system: a traditional food allergy, a respiratory allergy, and eosinophilic esophagitis or gastritis.
#22 Wheat Allergy: Symptoms, Foods to Avoid, and More
https://www.verywellhealth.com/the-wheat-allergy-diet-guide-1324279
The traditional food allergy is an abnormal immune response that involves immunoglobulin E (IgE), a protein in the immune system that functions as an antibody. […] This form of wheat allergy also involves IgE. Once IgE’s response to the presence of wheat kicks in, it proceeds much the same as a traditional food allergy. […] Eosinophilic esophagitis (EoE) and eosinophilic gastritis (EG) are systemic diseases involving chronic inflammation of the esophagus (EoE) or stomach (EG). The inflammation stems from the wheat-triggered activity of a type of white blood cell called an eosinophil. […] This is an entirely different process than the IgE-mediated response of traditional or respiratory wheat allergies and it takes longer for symptoms to manifest.
#23 Grain of Truth: The Realities of Living with a Wheat Allergy
https://www.lafoodallergy.com/learn/grain-of-truth-the-realities-of-living-with-a-wheat-allergy
While the precise mechanisms triggering wheat allergy aren’t fully understood, it’s known that both hereditary and environmental elements play a role. For example, early exposure to wheat products in infancy has been studied for its potential impact on developing this allergy. Additionally, certain conditions, like the hygiene hypothesis, suggest that a lack of early childhood exposure to infectious agents, symbiotic microorganisms, and parasites increases susceptibility to allergic diseases by suppressing the natural development of the immune system.
#24 21 Common Signs of Gluten Intolerance
https://www.healthline.com/nutrition/signs-you-are-gluten-intolerant
Wheat allergy is a food allergy that causes your bodys immune system to react to certain proteins found in wheat, including gluten and other compounds. […] Wheat allergy is more common among children than adults. Its estimated that approximately 66% of children outgrow wheat allergies by age 12. […] Studies show that people who are allergic to wheat often report digestive issues, such as nausea, vomiting, stomach cramps, and diarrhea. […] Anaphylaxis is a severe allergic reaction that can be life threatening if left untreated. […] Wheat allergy is a type of food allergy that may cause skin rashes, digestive issues, nasal congestion, and anaphylaxis.
#25 Wheat Intolerance Symptoms
https://www.foodintol.com/wheat-gluten-sensitivity/wheat-intolerance-symptoms
Wheat Allergy is a very rare severe sudden-onset allergic reaction to a certain protein component of wheat. Symptoms include coughing, asthma and skin hives. However – true food allergies are discovered very early in life in babies upon first exposure to the food. […] Most people who speak of wheat allergy are really referring to the inability to digest Gluten, Gluten intolerance. Gluten is a very complex protein found in wheat and some other grains. It is a much more common slow-onset reaction – and affects one in seven people or 15%. […] Wheat Intolerance (Gluten intolerance) involves the immune system because glutenâs breakdown proteins are seen as âforeignâ by your immune system. This sets up inflammation and disrupts processes. Thatâs why people get chronic (long term) symptoms like aching joints, gastro-intestinal problems, depression, eczema, low blood iron levels and others. Sometimes the first indication of wheat intolerance is diagnosis of anaemia.
#26 Wheat Allergies Symptoms & Treatment | Healthline
https://www.healthline.com/health/allergies/wheat
A wheat allergy occurs when your immune system has an abnormal reaction to any of the proteins present in wheat. […] Any exposure to the proteins found in wheat will cause an immune response in your body if you are allergic. […] In some people with wheat allergies, symptoms only occur if they exercise in the hours after eating wheat products. […] People are more likely to have a wheat allergy if they come from a family in which allergies to food or other substances are common. […] Wheat allergy is more common in children than adults, and about 65 percent of children outgrow the allergy by the time they reach adolescence, according to the American College of Asthma, Allergy, and Immunology. […] It is important to get an accurate diagnosis of wheat allergy, so that you can avoid appropriate foods and rule out other conditions such as celiac disease.
#26 Wheat Allergies Symptoms & Treatment | Healthline
https://www.healthline.com/health/allergies/wheat
Because the symptoms of a wheat allergy can overlap with the symptoms of celiac disease and non-celiac gluten sensitivity, your doctor will perform specific diagnostic tests to rule out these conditions and determine that you have wheat allergy. […] Anaphylaxis is the most serious symptom of a wheat allergy and can be life-threatening. […] Common allergy medications, such as antihistamines and corticosteroids, can be used to treat other symptoms of wheat allergy.
#27 Wheat Allergy – ECARF
https://www.ecarf.org/en/information-portal/allergies-overview/wheat-allergy/
Wheat allergy occurs rarely in adults, but it can take a life-threatening course. Wheat is the food that most commonly triggers a severe and immediate allergic reaction (anaphylaxis) in people over the age of 18. […] According to current knowledge, the reaction in primary wheat allergy is triggered when the allergen comes into contact with the intestinal mucosa. Children suffer most frequently from this type of reaction. […] An allergy can also be triggered by breathing in wheat flour dust. This is referred to as bakers asthma, one of the most common occupational respiratory diseases, and affects mainly bakery workers. […] If wheat causes gastrointestinal problems, the patient must be tested for both an allergy and coeliac disease, a serious disorder in which the body produces antibodies to gluten (which is found not only in wheat but also in other types of grains). […] Other gastrointestinal symptoms that mimic a wheat allergy may be caused by non-coeliac gluten sensitivity. The set of symptoms this refers to has not yet been clearly defined. […] There is currently no effective treatment for wheat allergies. For this reason, patients must try to avoid wheat.
#28 Wheat Allergy | Children’s Allergy Doctors
https://childrensallergydoctors.com/wheat-allergy/
Non-IgE-mediated wheat allergies trigger symptoms several hours to days after consumption. […] Because these reactions do not involve IgE antibodies, traditional allergy tests like skin prick tests are ineffective. […] Coeliac disease is more likely to affect people who have a close family member with the condition or certain genes linked to it. […] Wheat intolerance differs from allergies as it does not involve the immune system. […] Some individuals experience severe wheat allergy reactions only after consuming wheat and then exercising. […] Inhaling wheat flour dust can trigger asthma-like symptoms, a condition commonly known as Bakerâs Asthma. […] Diagnosis of wheat-related allergies typically involves a combination of medical history, skin prick tests, and specific IgE blood tests.
#28 Wheat Allergy | Children’s Allergy Doctors
https://childrensallergydoctors.com/wheat-allergy/
If you suspect a wheat allergy, consult your GP promptly. […] If diagnosed with an immediate wheat allergy, strict avoidance is essential. […] If your child has an immediate wheat allergy, it is crucial to ensure regular check-ups with their allergy clinic. […] A healthcare professional can determine whether avoiding these grainsâalong with oatsâis necessary. […] Wheat oral immunotherapy treatments is a programme where increasing amounts of wheat are given to your child under medical supervision. […] It is not a cure for wheat allergy but may help expedite the resolution of wheat allergy.
#29 What is Celiac Disease? | Celiac Disease FoundationBack to HomeBack to HomeAbout the DiseaseGluten-Free ResourcesResearch ResourcesAdvocacy and Public PolicyJoin the EffortSupport the FoundationShare on FacebookShare on TwitterEmail this pageprinter-miniR
https://celiac.org/about-celiac-disease/what-is-celiac-disease/
Celiac disease is a serious autoimmune disease that occurs in genetically predisposed people where the ingestion of gluten leads to damage in the small intestine. […] When people with celiac disease eat gluten (a protein found in wheat, rye, and barley), their body mounts an immune response that attacks the small intestine. […] Celiac disease is hereditary, meaning that it runs in families. […] Celiac disease can develop at any age after people start consuming gluten. […] Currently, the only treatment for celiac disease is lifelong adherence to a strict gluten-free diet. People living gluten-free must avoid foods with wheat, rye, and barley, such as bread and beer. […] Ingesting small amounts of gluten, like crumbs from a cutting board or toaster, can trigger small intestine damage. […] Celiac disease is also known as coeliac disease, celiac sprue, non-tropical sprue, and gluten sensitive enteropathy.
#30 The Truth about Gluten Allergy | BeyondCeliac.org
https://www.beyondceliac.org/celiac-disease/non-celiac-gluten-sensitivity/gluten-allergy-truth/
Gluten allergy is an incorrect term. There is currently no such recognized condition as a gluten allergy. Some people with celiac disease or non-celiac gluten sensitivity may describe their condition as an allergy because they believe that âallergyâ is a more familiar term, or that they themselves are unfamiliar with the difference between autoimmune disease, sensitivity (sometimes referred to as an intolerance) and an allergy. […] A third category is that of wheat allergy. The reaction is not to gluten, since people with wheat allergies can often eat rye or barley without incident. […] A wheat allergy is an allergic reaction to foods containing wheat, and may include responses such as asthma, rashes and even anaphylaxis. A wheat allergy does not trigger the immune response to attack villi as a celiac disease autoimmune reaction does. An allergic reaction to wheat may be triggered by consuming or inhaling wheat or wheat particles. […] Allergies, including those to wheat, are associated with positive IgE assays. Diagnosis is made through skin prick tests, wheat-specific IgE blood testing and a food challenge.
#31 Celiac Disease, Non-Celiac Gluten Sensitivity or Wheat Allergy: What is the Difference? – GIGÂ® Gluten Intolerance GroupÂ®
https://gluten.org/2019/10/15/celiac-disease-non-celiac-gluten-sensitivity-or-wheat-allergy-what-is-the-difference/
Wheat allergy is an immune reaction to any of the hundreds of proteins in wheat. […] When a person has a wheat allergy, one type of white blood cells, called B-cells, send out immunoglobulin E (IgE) antibodies to attack the wheat. […] This reaction happens very fast (within minutes to a few hours). […] A person with a wheat allergy must avoid eating any form of wheat but does not have trouble tolerating gluten from non-wheat sources. […] The only treatment is a wheat-free diet.
#32 Non-Celiac Gluten/Wheat Sensitivity | Celiac Disease FoundationBack to HomeBack to HomeAbout the DiseaseGluten-Free ResourcesResearch ResourcesAdvocacy and Public PolicyJoin the EffortSupport the FoundationShare on FacebookShare on TwitterEmail this pagep
https://celiac.org/about-celiac-disease/related-conditions/non-celiac-wheat-gluten-sensitivity/
People with non-celiac gluten/wheat sensitivity experience symptoms similar to those of celiac disease, which resolve when gluten is removed from the diet. However, they do not test positive for celiac disease. […] The terms non-celiac gluten sensitivity (NCGS) and non-celiac wheat sensitivity (NCWS) are generally used to refer to this condition, when removing gluten from the diet resolves symptoms, after testing negative for celiac disease and a wheat allergy. […] However, in July 2016, a team of researchers at Columbia University Medical Center, published a study confirming that wheat exposure in this group is, in fact, triggering a systemic immune reaction and accompanying intestinal cell damage. […] At this point, research has not confirmed that gluten is the culprit triggering the immune reaction as is the case with celiac disease. Other potential culprits include amylase-trypsin inhibitors (ATIs) and fructans (found in FODMAPs). Each of these contain gluten, but gluten may not be the cause of the syndrome.
#33 Wheat allergy – Diagnosis & treatment – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/wheat-allergy/diagnosis-treatment/drc-20378902
A blood test may order a blood test that screens for specific allergy-causing antibodies to common allergens, including wheat proteins. […] Avoiding wheat proteins is the best treatment for wheat allergy. […] Scientists are working on several types of immunotherapy to treat food allergies. […] Several small clinical trials have been done on an oral form of immunotherapy for wheat allergy that showed reduced allergy symptoms.
#34 Wheat Allergy | Anaphylaxis UK
https://www.anaphylaxis.org.uk/fact-sheet/wheat-allergy/
Immediate wheat allergy is a type of food allergy where the body’s immune system wrongly identifies one or more of the proteins in wheat as a threat and produces an immune response. This results in chemicals, such as histamine, being released. It is these chemicals that result in allergic symptoms. […] Wheat dependent exercise-induced anaphylaxis (WDEIA) is a type of immediate allergy to wheat that only happens if you exercise around the same time as eating wheat. This is a complex condition and needs to be diagnosed by an allergy specialist. […] If you think you may be allergic to wheat, see your GP who can refer you to a specialist allergy clinic if needed. […] If you are referred to an allergy clinic, the consultant will discuss your medical history and symptoms with you. They might suggest skin prick tests, blood tests, and food challenge tests to help diagnose the allergy and work out how serious it may be.
#35 Reactions to Wheat | Allergy UK | National Charity
https://www.allergyuk.org/resources/reactions-to-wheat-factsheet/
Wheat is an ingredient in a wide range of foods. Reactions to wheat can vary and may be due to: […] IgE mediated (immediate allergy) […] Non IgE mediated (Delayed allergy) […] Coeliac Disease (an autoimmune response) […] Gluten sensitivity […] This type of reaction is caused by the body producing IgE antibodies to one or more proteins found in the wheat grain. […] Coeliac disease is not an allergy or intolerance but is an autoimmune disease triggered by gluten proteins found in wheat, rye and barley. […] An intolerance is different to IgE and non IgE mediated allergy as it does not involve the immune system. […] Gluten sensitivity is when symptoms similar to coeliac disease present but it is unclear how the immune system is involved.
#36 Gluten allergy rash: What it looks like, and how it affects a person
https://www.medicalnewstoday.com/articles/gluten-allergy-rash
An allergist will most often be able to distinguish IgE-mediated wheat allergy and other wheat-related disorders, such as celiac disease, nonceliac gluten sensitivity, or FODMAP-type gluten intolerance. […] A person must receive an accurate diagnosis from a medical professional to help correctly manage their wheat allergy symptoms. […] If a person is allergic to wheat and consumes food containing wheat protein, they will most likely experience mild to moderate symptoms of hives. […] People can avoid a wheat allergy rash by following a wheat-free diet or taking suitable treatments such as antihistamines or steroids.
#37 Wheat Allergy: Signs, Causes, Diagnosis
https://www.webmd.com/allergies/wheat-allergy
Wheat allergy is an allergic reaction to eating foods containing wheat, and in some cases, inhaling wheat flour. […] The most common foods with wheat protein include: Bran, Bread crumbs, Bulgur, Couscous, Durum, durum flour, and durum wheat, Einkorn, Farina, Farro (also known as emmer), Kamut, Semolina, Sprouted wheat, Triticale, Wheat (bran, germ, gluten, grass, malt, starch), Wheat berries, Wheat flour (all types, including all-purpose, cake, enriched, graham, high protein or high gluten, and pastry). […] Gluten is a wheat protein that can cause an allergic reaction.
#38 A Parent’s Guide to Wheat Allergy | Ready, Set, Food!
https://readysetfood.com/blogs/community/a-parents-guide-to-wheat-allergy?srsltid=AfmBOooofQ1N7kMZUzsD0Ef3Yf5HHgDmY9idJpvBhLwufXkTb589W9yG
A wheat allergy causes an allergic immune response to a protein specifically found in wheat. […] Wheat allergy is more common in children than gluten intolerance, and many children outgrow their wheat allergy eventually. […] Wheat allergy is one of the top 8 food allergies in the United States. […] Fortunately, though, wheat allergies are often outgrown. One study indicates that around 84% of children with wheat allergies outgrow their allergy by age 10. […] Any amount of wheat could cause someone with wheat allergy to develop an allergic reaction. And any allergic reaction could develop into life-threatening anaphylaxis. So, it’s vital that children with wheat allergies avoid all wheat and wheat products. […] People with wheat allergies (NOT gluten intolerances) can often have other grains that are not wheat, like rye, rice, corn, barley, and wheat-free oats.
#39 Wheat Allergy | Kids with Food Allergies
https://kidswithfoodallergies.org/living-with-food-allergies/top-food-allergens/wheat-allergy/
Wheat allergy is an immune system reaction to wheat proteins. Wheat allergy can be severe and life-threatening if not treated promptly. There is no cure for wheat allergy. […] A wheat allergy is an IgE-mediated allergic reaction to wheat. Symptoms begin soon after eating wheat within minutes to hours. Wheat allergy can be severe and life-threatening, causing anaphylaxis. […] Currently, there are no FDA-approved treatments for wheat allergy (as of December 2022). The best way to prevent wheat allergy reactions is to avoid wheat completely.