Materiały źródłowe

• #1 Tay-Sachs Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK564432/

  Tay-Sachs disease is a fatal, inherited neurodegenerative disorder caused by a deficiency in the enzyme hexosaminidase-A, leading to progressive neuronal damage. This condition manifests in 3 forms: infantile, juvenile, and adult-onset, with infantile Tay-Sachs being the most severe. Symptoms typically emerge within the first 6 months of life and include motor weakness, developmental delay, and a characteristic „cherry-red spot” in the retina. As the disease progresses, affected individuals experience a loss of motor function and vision, often succumbing by the age of 4 or 5. […] The juvenile and adult-onset forms of the disease progress more slowly and may present with psychiatric symptoms in adulthood. […] Neurological symptoms are the hallmark of Tay-Sachs disease. Infants are usually hypotonic from birth and present with developmental delays or regression by 4 to 6 months of age. Symptoms rapidly progress by 8 to 10 months, spontaneous and voluntary movements diminish, and the infant becomes progressively less responsive.

• #1 Tay-Sachs Disease: What It Is, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14348-tay-sachs-disease

  Symptoms of Tay-Sachs disease vary based on your child’s age. The disease progresses (gets worse) as your child grows. The most common sign of Tay-Sachs disease among children is missing developmental milestones for their age or losing skills they previously learned and mastered. […] Early symptoms (around 6 months) include muscle weakness, difficulty turning over, sitting or crawling, and being easily startled by loud noises. […] As the disease progresses (before 1 year of age), symptoms include involuntary muscle twitching (myoclonic jerks), seizures, difficulty swallowing (dysphagia), vision loss, hearing loss, cherry-red spot on their eyes, and respiratory infections. […] Around 2 years old, the condition starts to take over completely. Your child may be in an unresponsive state. This means they don’t have much brain function. The age of death is usually between 2 and 4 years. Pneumonia is often the cause of death in infantile Tay-Sachs disease.

• #1 Tay-Sachs Disease – Child Neurology Foundation

  https://www.childneurologyfoundation.org/disorder/tay-sachs-disease/

  Tay-Sachs disease (TSD) is a rare neurological disease in which the functions of the nervous system continually get worse. As the disease progresses, symptoms eventually include: A loss of intentional movement, Blindness, Seizures, A loss of purposeful interactions, Death. […] The most common form of TSD is diagnosed early in the first year of life. Sometimes the symptoms can start in older children or adults. […] TSD is a severe neurological disease that gets worse over time. It usually begins within the first few months of life. It causes a rapid decline in babies ability to think, move, eat, and breathe. […] Symptoms usually begin at around 3 to 6 months old, with: Delayed development or loss of developmental milestones, Low muscle tone, or floppiness (hypotonia), Abnormal jerking movements (myoclonus), Progressive weakness.

• #1 Tay-Sachs disease: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/001417.htm

  Tay-Sachs disease is a life-threatening disease of the nervous system passed down through families. […] Tay-Sachs disease is divided into infantile, juvenile, and adult forms, depending on the symptoms and when they first appear. Most people with Tay-Sachs have the infantile form. In this form, the nerve damage usually begins while the baby is still in the womb. Symptoms usually appear when the child is 3 to 6 months old. The disease tends to get worse very quickly, and the child usually dies by age 4 or 5. […] Symptoms may include any of the following: Deafness, Decreased eye contact, blindness, Decreased muscle tone (loss of muscle strength), loss of motor skills, paralysis, Slow growth and delayed mental and social skills, Dementia (loss of brain function), Increased startle reaction, Irritability, Listlessness, Seizures. […] Children with this disease have symptoms that get worse over time. They usually die by age 4 or 5. […] Symptoms appear during the first 3 to 10 months of life and progress to spasticity, seizures, and loss of all voluntary movements.

• #1 Tay-Sachs Disease: Treatments, Symptoms, Risks, and More

  https://www.healthline.com/health/neurological-health/tay-sachs-disease

  Tay-Sachs is a rare disease of the central nervous system that most commonly affects infants. In infants and young children, its a progressive disease that is always fatal. […] Most infants with Tay-Sachs disease appear healthy at birth and for the first few months of life, with symptoms usually appearing from age 3 to 6 months. Progression is rapid, and a child with infantile Tay-Sachs may live to age 4 or 5. […] Symptoms of infantile Tay-Sachs include: muscle weakness, muscle twitching, increased startle response, declining motor skills, slow growth, hearing loss, vision loss, difficulty swallowing, paralysis, seizure, intellectual disability, red spot on the macula. […] People with the juvenile form typically display symptoms between ages 2 and 5. Symptoms slowly increase over time. Children with this form may live to about age 15.

• #1 Tay-Sachs Disease: Symptoms, Causes, Treatment, Prevention

  https://www.webmd.com/parenting/baby/what-is-tay-sachs-disease

  A baby born with Tay-Sachs grows like they should until 3 to 6 months of age. […] Around this time, parents might notice that their baby’s development starts to slow and their muscles weaken. Over time, the disease causes more symptoms in babies, including: A loss of motor skills such as turning over, sitting, and crawling. A very strong reaction to loud noises. Trouble focusing on objects or following them with their eyes. Cherry-red spots, which can be identified with an eye exam, in the eyes. […] By age 2, most children with Tay-Sachs have started getting more serious problems. They can include: Swallowing and breathing issues that keep getting worse. Seizures. Loss of mental function, hearing, and sight. Paralysis. […] Past age 3, there are few visible changes in children with Tay-Sachs, but their nervous system continues to get worse, often leading to death by age 5.

• #1 Tay-Sachs disease | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/tay-sachs-disease?content_id=CON-20378183

  This rare, inherited disease causes a buildup of fatty acids that damages the brain and typically results in muscle control loss, blindness and paralysis. […] In the most common and severe form of Tay-Sachs disease, signs and symptoms start to show up at about 3 to 6 months of age. As the disease progresses, development slows and muscles begin to weaken. Over time, this leads to seizures, vision and hearing loss, paralysis, and other major issues. Children with this form of Tay-Sachs disease typically live only a few years. […] In the most common and severe form, called infantile form, an infant typically begins showing signs and symptoms by about 3 to 6 months of age. Survival is usually only a few years. Signs and symptoms can include: Exaggerated startle response when the baby hears loud noises, „Cherry-red” spots in the eyes, Loss of motor skills, including turning over, crawling and sitting up, Muscle weakness, progressing to paralysis, Movement problems, Seizures, Vision loss and blindness, Hearing loss and deafness, Problems swallowing, Loss of mental functions and a lack of response to surroundings, Growth in head size (progressive macrocephaly).

• #1 Tay–Sachs disease – Wikipedia

  https://en.wikipedia.org/wiki/Tay%E2%80%93Sachs_disease

  Initially: Decreased ability to turn over, sit, or crawl. […] Later: Seizures, hearing loss, inability to move. […] The most common form is infantile TaySachs disease, which becomes apparent around the age of three to six months of age, with the infant losing the ability to turn over, sit, or crawl. […] This is then followed by seizures, hearing loss, and inability to move, with death usually occurring by the age of three to five. […] Infants with TaySachs disease appear to develop normally for the first six months after birth. Then, as neurons become distended with GM2 gangliosides, a relentless deterioration of mental and physical abilities begins. The child may become blind, deaf, unable to swallow, atrophied, and paralytic. Death usually occurs before the age of four. […] Juvenile TaySachs disease is rarer than other forms of TaySachs and usually is initially seen in children between two and ten years old. People with TaySachs disease experience cognitive and motor skill deterioration, dysarthria, dysphagia, ataxia, and spasticity. Death usually occurs between the ages of five and fifteen years.

• #1 Tay-Sachs disease: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/tay-sachs-disease/

  Two other forms of Tay-Sachs disease, known as juvenile and late-onset, are rare. Signs and symptoms of the juvenile form can appear between the ages of 5 years and late adolescence. Features of late-onset Tay-Sachs disease typically appear in adulthood. People with either of these forms of the condition usually have milder and more variable signs and symptoms than those with the infantile form. Characteristic features of juvenile or late-onset Tay-Sachs disease include muscle weakness, loss of muscle coordination (ataxia), speech problems, and psychiatric symptoms. These signs and symptoms vary widely among people with late-onset forms of Tay-Sachs disease.

• #1 Juvenile Tay-Sachs Disease – NTSAD

  https://ntsad.org/diseases/tay-sachs-disease/juvenile-tay-sachs-disease/

  Symptoms of juvenile Tay-Sachs disease typically appear between 2-5 years of age. […] Tay-Sachs disease exists on a spectrum, and every individual experiences juvenile Tay-Sachs differently. In general, the younger the child is when symptoms first appear, the faster the disease will tend to progress. […] Some of the first signs you may notice are that your child experiences regression in development, and loss of developmental milestones gained, and loss of muscle strength. […] As the disease progresses, you may notice that your child experiences seizures, difficulty swallowing, leading to increased episodes of aspiration, and excessive secretions. […] In the late and end stages of the disease your child shifts to full dependence on caregivers for all day-to-day functions, continues to experience difficulty swallowing, and a feeding tube may be recommended, and continues to experience seizures.

• #1 Tay-Sachs Disease: What It Is, Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14348-tay-sachs-disease

  Children diagnosed with juvenile Tay-Sachs disease may experience symptoms after age 5, including muscle weakness or loss of muscle control, frequent infections, difficulty with speech and language, loss of previously learned skills, mood and behavioral changes, hearing and vision loss, and seizures. […] The condition usually progresses into the teenage years and leads to early death during this time. […] Adults diagnosed with late-onset Tay-Sachs disease may experience symptoms such as muscle weakness and spasms, loss of coordination (ataxia), difficulty with communication and swallowing, and psychosis or the development of mental health conditions. […] Tay-Sachs disease causes early death among children. As the condition progresses, a child’s life expectancy decreases. […] Children with infantile Tay-Sachs often pass away before the age of 5. Older children and teenagers diagnosed with juvenile Tay-Sachs disease have a life expectancy into early adulthood. Late-onset Tay-Sachs disease doesn’t directly affect an adult’s life expectancy. […] No. Children can’t recover from Tay-Sachs disease. Treatment is available to keep your child comfortable and delay the progression of the condition.

• #1 Tay-Sachs disease | Beacon Health System

  https://www.beaconhealthsystem.org/library/diseases-and-conditions/tay-sachs-disease?content_id=CON-20378183

  The juvenile form of Tay-Sachs disease is less common. Signs and symptoms vary in severity and begin in childhood. Survival is typically into the teen years. Signs and symptoms can include: Behavior problems, Gradual loss of skills and movement control, Frequent respiratory infections, Slow loss of vision and speech, Decline in mental function and responsiveness, Seizures. […] This is a rare and less severe form with signs and symptoms beginning in late childhood to adulthood. Severity of symptoms varies greatly, and this form does not always impact life expectancy. Signs and symptoms progress slowly and can include: Muscle weakness, Clumsiness and loss of coordination, Tremors and muscle spasms, Loss of the ability to walk, Problems speaking and swallowing, Psychiatric disorders, Sometimes loss of mental function.

• #1

  https://myhealth.alberta.ca/Health/pages/conditions.aspx?hwid=ux1245&

  Symptoms of LOTS vary but usually include clumsiness or mood changes that begin between adolescence and the mid-30s. […] At first, symptoms are subtle and may go unnoticed. Other symptoms that may occur include: Personality changes. Muscle weakness or twitching. Slurred speech. Impaired thinking and reasoning ability, such as memory problems, difficulty with comprehension, and short attention span. Inability to distinguish between what is real and unreal (psychotic episodes) or depression. […] Treatment for late-onset Tay-Sachs disease focuses on controlling symptoms. There is no cure. The life expectancy for a person with LOTS is unknown. Depending on the severity of the symptoms, the person may live as long as someone who does not have the disease.

• #1

  https://myhealth.alberta.ca/Health/pages/conditions.aspx?hwid=ux1245&lang=en-ca

  Symptoms of LOTS vary but usually include clumsiness or mood changes that begin between adolescence and the mid-30s. At first, symptoms are subtle and may go unnoticed. Other symptoms that may occur include: […] Personality changes. […] Muscle weakness or twitching. […] Slurred speech. […] Impaired thinking and reasoning ability, such as memory problems, difficulty with comprehension, and short attention span. […] Inability to distinguish between what is real and unreal (psychotic episodes) or depression. […] The life expectancy for a person with LOTS is unknown. Depending on the severity of the symptoms, the person may live as long as someone who does not have the disease.

• #1 Late Onset Tay-Sachs Disease – NTSAD

  https://ntsad.org/diseases/tay-sachs-disease/late-onset-tay-sachs-disease-2/

  Individuals affected by late onset Tay-Sachs often experience the progressive loss of mobility, including frequent falls, difficulty moving from one place to another, and feeling exhausted after short bursts of activity. […] Communication challenges vary in nature and severity depending on the individual. You may experience challenges such as stuttering, difficulty reading and writing, and speaking too quickly or too slowly. […] Eating and drinking safely can be common challenges for people affected by late onset Tay-Sachs disease. […] Mental health issues vary depending on the individual and tend to fall in three categories: emotional health, cognitive health, and psychiatric health. […] You may experience: Symptoms like disorientation, hallucinations, obsessive compulsive behavior, paranoia, Mood disorders like anxiety, depression, bipolar disorder. […] The symptoms of late onset Tay-Sachs disease vary from person to person. You may find that the condition affects your ability to work.

• #1 Tay–Sachs disease – Wikipedia

  https://en.wikipedia.org/wiki/Tay%E2%80%93Sachs_disease

  A rare form of this disease, known as Adult-Onset or Late-Onset TaySachs disease, usually has its first symptoms during the 30s or 40s. In contrast to the other forms, late-onset TaySachs disease is usually not fatal as the effects can stop progressing. It is frequently misdiagnosed. It is characterized by unsteadiness of gait and progressive neurological deterioration. Symptoms of late-onset TaySachs which typically begin to be seen in adolescence or early adulthood include speech and swallowing difficulties, unsteadiness of gait, spasticity, cognitive decline, and psychiatric illness, particularly a schizophrenia-like psychosis. […] As of 2010, even with the best care, children with infantile TaySachs disease usually die by the age of 4. Children with the juvenile form are likely to die between the ages of 5-15, while the lifespans of those with the adult form will probably not be affected.

• #1 Orphanet: Tay-Sachs disease

  https://www.orpha.net/en/disease/detail/845

  For the pediatric form of Tay-Sachs, the severity is correlated to age of onset, with a more rapid regression in early infantile form leading to death around 2-4 years of age, whereas death occurs in the second decades in the juvenile form. All patients will have pharmaco-resistant epilepsy in the advanced stages of the disease. For the adult form, the disease is usually very slow progressive and may last decades. Patients are progressively disabled, may lost the ability to walk and have difficulties for upper limbs utilization, speech, swallowing, and may more rarely have cognitive symptoms.

• #1 Hexosaminidase A deficiency | Myriad Foresight® Carrier Screen

  https://myriad.com/womens-health/diseases/hexosaminidase-a-deficiency/

  Even with treatment, children affected by classic Tay-Sachs disease usually die by the age of four. […] The prognosis for an individual with the other forms of Tay-Sachs disease can vary, depending on both the age of onset and the severity of symptoms. Those with juvenile-onset Tay-Sachs disease typically experience progressive loss of skills between the ages of two and ten and death occurs in the teenage years. In more severe cases, those with juvenile-onset Tay-Sachs disease can die in early childhood. […] The prognosis for those with the late-onset form varies even more. The lifespans of individuals with late-onset Tay-Sachs disease are not well studied and can be difficult to predict, though there are certainly examples of people with this condition who live into their sixties or seventies.

• #1 Tay-Sachs Disease: Symptoms, Causes, Treatment

  https://resources.healthgrades.com/right-care/brain-and-nerves/tay-sachs-disease

  Tay-Sachs is a progressive neurodegenerative disorder. The complications of the disease reflect this and include: paralysis, seizures not treatable with medication, muscle spasticity, vision loss or blindness. […] Tay-Sachs is a fatal disorder when it starts before adulthood. The life expectancy varies with the severity of the disease: Infantile Tay-Sachs: Life-threatening complications usually occur by age 3–5 years. Juvenile Tay-Sachs: Life-threatening complications usually occur by about age 15 years. Late-onset or adult Tay-Sachs: Life-threatening complications may or may not occur early. Some people pass early in adulthood, while others live into their 70s with only mild symptoms.

• #1 Tay-Sachs Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK564432/

  By 2 years, patients deteriorate and develop decerebrate posturing, dysphagia, and progress to an unresponsive and vegetative state. […] Juvenile Tay-Sachs disease manifests in early childhood between ages 2 to 10, caused by the reduced activity level of Hex A. The earlier the onset of the symptoms, the more quickly the disease progresses. Early symptoms include incoordination, clumsiness, and muscle weakness. […] Adult Tay-Sachs disease is a very rare disorder, and diagnosis is often delayed at least by 8 years. The adult form is less aggressive, resulting from a small mutation and high residual activity of Hex A, which demonstrates at least 5% to 20% of normal activity. Typical symptoms start in adolescence or early adulthood but can appear later, in those aged between 20 and 30. […] Progressive neurological deterioration occurs, and the resulting seizures often remain refractory to treatment. Even with the best care, patients with infantile Tay-Sachs disease usually die by the age of 4 to 5. Death usually results from recurrent infections. In late-onset disease, there are progressive gait difficulties and motor impairment, which often requires the use of adaptive equipment and mobility assistance. […] The complications include progressive neurological deterioration, spasticity, refractory seizures, and progressive visual impairment, finally leading to a vegetative state.

• #1 Tay-Sachs disease – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/tay-sachs-disease/diagnosis-treatment/drc-20378193

  To confirm that your child has Tay-Sachs disease, your health care provider will ask about symptoms and any family hereditary disorders, and also do a physical exam. Your child may need to see a neurologist and an ophthalmologist for nervous system and eye examinations. […] There is no cure for Tay-Sachs disease, and no treatments are currently proved to slow progression of the disease. Some treatments can help in managing symptoms and preventing complications. The goal of treatment is support and comfort. […] Research on treatments such as gene therapy, stem cell transplantation, or enzyme replacement therapy may eventually lead to a cure or treatment to slow the progression of Tay-Sachs disease.

• #2 Tay-Sachs disease: MedlinePlus GeneticsLock

  https://medlineplus.gov/genetics/condition/tay-sachs-disease/

  Tay-Sachs disease is a rare, inherited disorder that is characterized by neurological problems caused by the death of nerve cells (neurons) in the brain and spinal cord (central nervous system). […] The most common form of Tay-Sachs disease, known as infantile Tay-Sachs disease, becomes apparent early in life. Infants with this disorder typically develop normally until they are 3 to 6 months old. During this time, their development slows and muscles used for movement weaken. Affected infants stop achieving normal developmental milestones and begin to lose previously acquired skills such as turning over, sitting, and crawling. Infants with this condition develop an exaggerated startle reaction to loud noises. As the disease progresses, children with Tay-Sachs disease experience involuntary muscle twitches (myoclonic jerks), seizures, difficulty swallowing (dysphagia), vision and hearing loss, and intellectual disability. An eye abnormality called a cherry-red spot, which is identified by eye examination, is characteristic of this disorder. Children with infantile Tay-Sachs disease usually live only into early childhood.

• #2 Tay-Sachs disease

  https://www.nhs.uk/conditions/tay-sachs-disease/

  Symptoms of infantile Tay-Sachs disease usually start when a child is 3 to 6 months old. The main symptoms include: being overly startled by noises and movement, being very slow to reach milestones like learning to crawl, and losing skills they have already learnt, floppiness and weakness, which keeps getting worse until they’re unable to move (paralysis), difficulty swallowing, loss of vision or hearing, muscle stiffness, seizures (fits). The condition is usually fatal by around 3 to 5 years of age, often due to complications of a lung infection (pneumonia). […] Rarer types of Tay-Sachs disease start later in childhood (juvenile Tay-Sachs disease) or early adulthood (late-onset Tay-Sachs disease). The late-onset type doesn’t always shorten life expectancy.

• #2 Tay-Sachs Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK564432/

  Tay-Sachs disease is a fatal, inherited neurodegenerative disorder caused by a deficiency in the enzyme hexosaminidase-A, leading to progressive neuronal damage. This condition manifests in 3 forms: infantile, juvenile, and adult-onset, with infantile Tay-Sachs being the most severe. Symptoms typically emerge within the first 6 months of life and include motor weakness, developmental delay, and a characteristic „cherry-red spot” in the retina. As the disease progresses, affected individuals experience a loss of motor function and vision, often succumbing by the age of 4 or 5. […] The juvenile and adult-onset forms of the disease progress more slowly and may present with psychiatric symptoms in adulthood. […] Neurological symptoms are the hallmark of Tay-Sachs disease. Infants are usually hypotonic from birth and present with developmental delays or regression by 4 to 6 months of age. Symptoms rapidly progress by 8 to 10 months, spontaneous and voluntary movements diminish, and the infant becomes progressively less responsive.

• #2 Tay–Sachs disease – Wikipedia

  https://en.wikipedia.org/wiki/Tay%E2%80%93Sachs_disease

  Initially: Decreased ability to turn over, sit, or crawl. […] Later: Seizures, hearing loss, inability to move. […] The most common form is infantile TaySachs disease, which becomes apparent around the age of three to six months of age, with the infant losing the ability to turn over, sit, or crawl. […] This is then followed by seizures, hearing loss, and inability to move, with death usually occurring by the age of three to five. […] Infants with TaySachs disease appear to develop normally for the first six months after birth. Then, as neurons become distended with GM2 gangliosides, a relentless deterioration of mental and physical abilities begins. The child may become blind, deaf, unable to swallow, atrophied, and paralytic. Death usually occurs before the age of four. […] Juvenile TaySachs disease is rarer than other forms of TaySachs and usually is initially seen in children between two and ten years old. People with TaySachs disease experience cognitive and motor skill deterioration, dysarthria, dysphagia, ataxia, and spasticity. Death usually occurs between the ages of five and fifteen years.

• #2 Tay-Sachs disease | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/tay-sachs-disease

  Tay-Sachs disease (TSD) is a genetic condition that affects the nervous system. It becomes progressively worse over time. Symptoms usually first appear at around six months of age in previously healthy babies. The life expectancy for children with TSD is around five years of age. […] Tay-Sachs disease is a degenerative condition, meaning that symptoms become worse over time. In people with TSD the nerve cells in the brain and spinal cord are progressively destroyed, leading to paralysis. Symptoms first appear at around six months of age in a previously healthy baby. […] The symptoms of TSD in a young baby include: movement problems loss of ability to smile, reach out, hold onto objects, crawl, turn over or sit up, vision and hearing impairment, exaggerated reactions to loud noises, seizures.

• #2 Tay-Sachs Disease – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK564432/

  By 2 years, patients deteriorate and develop decerebrate posturing, dysphagia, and progress to an unresponsive and vegetative state. […] Juvenile Tay-Sachs disease manifests in early childhood between ages 2 to 10, caused by the reduced activity level of Hex A. The earlier the onset of the symptoms, the more quickly the disease progresses. Early symptoms include incoordination, clumsiness, and muscle weakness. […] Adult Tay-Sachs disease is a very rare disorder, and diagnosis is often delayed at least by 8 years. The adult form is less aggressive, resulting from a small mutation and high residual activity of Hex A, which demonstrates at least 5% to 20% of normal activity. Typical symptoms start in adolescence or early adulthood but can appear later, in those aged between 20 and 30. […] Progressive neurological deterioration occurs, and the resulting seizures often remain refractory to treatment. Even with the best care, patients with infantile Tay-Sachs disease usually die by the age of 4 to 5. Death usually results from recurrent infections. In late-onset disease, there are progressive gait difficulties and motor impairment, which often requires the use of adaptive equipment and mobility assistance. […] The complications include progressive neurological deterioration, spasticity, refractory seizures, and progressive visual impairment, finally leading to a vegetative state.

• #2 Tay-Sachs Disease – Child Neurology Foundation

  https://www.childneurologyfoundation.org/disorder/tay-sachs-disease/

  During the middle stages of TSD, development stops and children lose skills. Over time, they can develop seizures and blindness. […] Eventually, the symptoms are so severe that children cannot interact with their surroundings. They become so weak that they cannot move purposefully. Severe muscle weakness can cause breathing problems and high risk of respiratory infections. […] Some of the most important symptoms of TSD include: Low muscle tone (hypotonia), Exaggerated startle response, Abnormal movements, Abnormal reflexes, Seizures, Vision loss. […] Seizures often begin by 12 months of age. These seizures can be hard to control. […] TSD also causes progressive vision loss. At age 6 months, a cherry-red spot occurs as a result of swelling at the back of the eye. […] Death usually occurs from respiratory complications by age 5.

• #2 Tay-Sachs Symptoms and Progression: What to Expect – Cure Tay-Sachs

  https://www.curetay-sachs.org/tay-sachs-symptoms-and-progression-what-to-expect/

  For parents, understanding the insidious progression of Tay-Sachs disease can be a daunting prospect. Tay-Sachs disease is a genetic disorder that progressively destroys nerve cells in the brain and spinal cord. Tay-Sachs is often identified after a child’s birth, as it’s most commonly noticed in infants. The disease initially presents with weak muscle tone in babies, often referred to as hypotonia, and an exaggerated startle response to sounds. These Stage 1 symptoms generally begin to show around three to six months of age, as the first noticeable indicators of this life-altering disease. Stage 2 of Tay-Sachs sees the progression of symptoms with the child experiencing seizures and manifestations of hyper-excitable central nervous system. A child may also lose their ability to swallow, which leads to an inability to eat, and they may develop other feeding and related respiratory issues. Later on, between the ages of 2 and 4, Stage 3 begins with a regression of early skills. Children with Tay-Sachs often lose their ability to see, hear, eat, move, and even swallow, requiring 24-hour care. The emotional and physical toll on parents and families can be enormous.

• #2 Tay Sachs Disease – Symptoms, Causes & Risk | Max Hospital

  https://www.maxhealthcare.in/blogs/tay-sachs-disease-symptoms-causes

  Juvenile Tay-Sachs disease presents a broader range of symptoms, including cognitive decline, speech difficulties, muscle weakness, balance and coordination issues, and psychiatric symptoms such as behavioral changes or hallucinations. […] In late-onset Tay-Sachs, symptoms might emerge in adulthood. […] These can encompass muscle weakness, unsteady gait, tremors, difficulty speaking, cognitive decline, and emotional or psychiatric disturbances. […] In addition to the aforementioned, some infants affected by Tay-Sachs disease may experience emergency symptoms such as sudden seizures, extreme muscle weakness, persistent vomiting, high fever, difficulty in breathing, and extreme lethargy. […] Life expectancy significantly varies depending on the type and severity of Tay-Sachs disease. […] Infantile-onset forms usually lead to premature death within a few years of life, while later-onset forms may result in a shorter lifespan due to progressive neurological deterioration and associated complications.

• #2 Tay–Sachs disease – Wikipedia

  https://en.wikipedia.org/wiki/Tay%E2%80%93Sachs_disease

  A rare form of this disease, known as Adult-Onset or Late-Onset TaySachs disease, usually has its first symptoms during the 30s or 40s. In contrast to the other forms, late-onset TaySachs disease is usually not fatal as the effects can stop progressing. It is frequently misdiagnosed. It is characterized by unsteadiness of gait and progressive neurological deterioration. Symptoms of late-onset TaySachs which typically begin to be seen in adolescence or early adulthood include speech and swallowing difficulties, unsteadiness of gait, spasticity, cognitive decline, and psychiatric illness, particularly a schizophrenia-like psychosis. […] As of 2010, even with the best care, children with infantile TaySachs disease usually die by the age of 4. Children with the juvenile form are likely to die between the ages of 5-15, while the lifespans of those with the adult form will probably not be affected.

• #2 Late Onset Tay-Sachs Disease: Symptoms, Treatment, and Outlook

  https://www.healthline.com/health/late-onset-tay-sachs-disease

  Late onset Tay-Sachs disease is a neurodegenerative condition that runs in families. This form of Tay-Sachs disease progresses slower than other forms and doesn’t typically shorten your life expectancy. […] LOTS is a form of Tay-Sachs disease that starts when a person is in their late teenage years or older. Some people may have disease onset in their 20s, while others may not have symptoms until their 60s or 70s. […] The first symptom may be weakness and wasting in the muscles, which is called neurogenic atrophy. […] You may walk unsteadily (balance and gait issues) and have symptoms of progressive neurological deterioration, which may include: clumsiness, psychiatric issues, muscle twitching, muscle cramps, tremors, slurred speech, trouble swallowing, memory issues. […] Since people with LOTS have some enzyme activity, symptoms tend to be less severe and slower to progress than in the more common infantile form. […] The progression of LOTS is slower than that of other forms of Tay-Sachs disease. Symptoms may also be less severe, but it depends on the individual. […] While LOTS can interfere with your movement, feeding and swallowing, and mental health, it doesn’t typically shorten your life expectancy.

• #2 Late Onset Tay-Sachs Disease – NTSAD

  https://ntsad.org/diseases/tay-sachs-disease/late-onset-tay-sachs-disease-2/

  Individuals affected by late onset Tay-Sachs often have a small amount of HexA, which means the onset and progression of symptoms occur slower than in the infantile and juvenile forms of the disease. […] Symptoms of late onset Tay-Sachs disease typically appear adolescence and into adulthood. […] Some of the first signs you may experience are: Clumsiness, Muscle weakness in the legs, Mental health symptoms, such a bipolar episodes or psychosis. […] As the disease progresses, you may experience: Gradual loss of skills, leading to the need for mobility assistance, Difficulty speaking and swallowing. […] While there is currently no cure for late onset Tay-Sachs disease, it is possible to manage symptoms like swallowing difficulties and issues with mobility, communication, and mental health.

• #2 Late Onset Tay-Sachs Disease – NTSAD

  https://ntsad.org/diseases/tay-sachs-disease/late-onset-tay-sachs-disease-2/

  Individuals affected by late onset Tay-Sachs often experience the progressive loss of mobility, including frequent falls, difficulty moving from one place to another, and feeling exhausted after short bursts of activity. […] Communication challenges vary in nature and severity depending on the individual. You may experience challenges such as stuttering, difficulty reading and writing, and speaking too quickly or too slowly. […] Eating and drinking safely can be common challenges for people affected by late onset Tay-Sachs disease. […] Mental health issues vary depending on the individual and tend to fall in three categories: emotional health, cognitive health, and psychiatric health. […] You may experience: Symptoms like disorientation, hallucinations, obsessive compulsive behavior, paranoia, Mood disorders like anxiety, depression, bipolar disorder. […] The symptoms of late onset Tay-Sachs disease vary from person to person. You may find that the condition affects your ability to work.

• #2 Tay-Sachs Disease: Causes and Symptoms | Doctor

  https://patient.info/doctor/tay-sachs-disease.htm

  First presents in adolescence and shows progressive neurological deficits with cognitive loss, ataxia. 1 in 3 affected patients present with psychotic symptoms. […] Tay-Sachs disease is a progressive neurodegenerative disorder. The classic infantile form is usually fatal by age 2 or 3 years. Death usually occurs due to intercurrent infection. In the juvenile form, death usually occurs by age 10-15 years; preceded by several years of vegetative state with decerebrate rigidity. Death is usually due to infection. In the adult form, most patients have a normal life expectancy.

• #2

  https://myhealth.alberta.ca/Health/pages/conditions.aspx?hwid=ux1245&lang=en-ca

  Symptoms of LOTS vary but usually include clumsiness or mood changes that begin between adolescence and the mid-30s. At first, symptoms are subtle and may go unnoticed. Other symptoms that may occur include: […] Personality changes. […] Muscle weakness or twitching. […] Slurred speech. […] Impaired thinking and reasoning ability, such as memory problems, difficulty with comprehension, and short attention span. […] Inability to distinguish between what is real and unreal (psychotic episodes) or depression. […] The life expectancy for a person with LOTS is unknown. Depending on the severity of the symptoms, the person may live as long as someone who does not have the disease.

• #2 Orphanet: Tay-Sachs disease

  https://www.orpha.net/en/disease/detail/845

  For the pediatric form of Tay-Sachs, the severity is correlated to age of onset, with a more rapid regression in early infantile form leading to death around 2-4 years of age, whereas death occurs in the second decades in the juvenile form. All patients will have pharmaco-resistant epilepsy in the advanced stages of the disease. For the adult form, the disease is usually very slow progressive and may last decades. Patients are progressively disabled, may lost the ability to walk and have difficulties for upper limbs utilization, speech, swallowing, and may more rarely have cognitive symptoms.

• #2 Tay-Sachs Disease: Symptoms, Causes, Treatment

  https://resources.healthgrades.com/right-care/brain-and-nerves/tay-sachs-disease

  Tay-Sachs disease is a rare, inherited disorder. It is a neurodegenerative disease that results in a fatal loss of nerve cells. Symptoms include muscle weakness and other neurological problems. […] The timing of Tay-Sachs disease symptoms depends on the amount of HEXA activity a person has. Symptoms begin early when HEXA levels are lower and ganglioside accumulation is higher. […] Infantile Tay-Sachs is the most common and severe form of the disease. Infants with the disease have no HEXA activity or very low levels of it. Symptoms usually begin within 6 months of birth. The first symptom is often an exaggerated startle response to noise. […] Other symptoms are progressive and include: vision and hearing loss, loss of skills and milestones, such as rolling over or sitting, mental degeneration, leading to unresponsiveness, muscle weakness, leading to paralysis, seizures, swallowing problems.

• #2 Invitae Tay-Sachs Disease Test | Test catalog | Invitae

  https://www.invitae.com/us/providers/test-catalog/test-04719

  Tay-Sachs disease is a progressive pediatric neurodegenerative disorder with symptoms ranging from classic TSD (acute infantile) to subacute juvenile and adult-onset forms that progress more slowly. […] Infants with TSD typically first present around 3-6 months with symptoms that include progressive muscle weakness, difficulty coordinating muscle movement, decreased attentiveness, and an increased startle response. Symptoms then progress to seizures, blindness, muscle stiffness, and death, usually before age 4. […] Acute infantile TSD is the commonest and most severe form of hexosaminidase A deficiency. There are two additional forms, subacute juvenile and adult-onset, which have later ages of onset, more-variable neurologic findings, and less-severe disease progressions. The level of HEXA enzyme activity is inversely correlated with the severity of the disease form.

• #2 Tay-Sachs disease // Middlesex Health

  https://middlesexhealth.org/learning-center/diseases-and-conditions/tay-sachs-disease

  There is no cure for Tay-Sachs disease, and no treatments are currently proved to slow progression of the disease. Some treatments can help in managing symptoms and preventing complications. The goal of treatment is support and comfort. […] Research on treatments such as gene therapy, stem cell transplantation, or enzyme replacement therapy may eventually lead to a cure or treatment to slow the progression of Tay-Sachs disease.

• #2 First gene therapy for Tay-Sachs disease successfully given to two children

  https://www.umassmed.edu/news/news-archives/2022/02/first-gene-therapy-for-tay-sachs-disease-successfully-given-to-two-children/

  One of the symptoms of this disease was first described in 1883 by British ophthalmologist Warren Tay, who saw a cherry-red spot on the back of the eye of affected infants. […] This dismal description of Tay-Sachs remains current, and those with the disease usually die by age 5. Some people develop Tay-Sachs later in life, with symptoms starting in their teens that get progressively worse over many decades. […] The first child who received our gene therapy treatment was age 2 1/2 half, with late-stage disease symptoms. Three months after treatment, they had better muscle control and could focus their eyes. […] A second child treated at age 7 months had improved brain development by the three-month follow-up and remains seizure-free at a little over age two.

• #3 Tay-Sachs Disease: Symptoms, Causes, Treatment, Prevention

  https://www.webmd.com/parenting/baby/what-is-tay-sachs-disease

  A baby born with Tay-Sachs grows like they should until 3 to 6 months of age. […] Around this time, parents might notice that their baby’s development starts to slow and their muscles weaken. Over time, the disease causes more symptoms in babies, including: A loss of motor skills such as turning over, sitting, and crawling. A very strong reaction to loud noises. Trouble focusing on objects or following them with their eyes. Cherry-red spots, which can be identified with an eye exam, in the eyes. […] By age 2, most children with Tay-Sachs have started getting more serious problems. They can include: Swallowing and breathing issues that keep getting worse. Seizures. Loss of mental function, hearing, and sight. Paralysis. […] Past age 3, there are few visible changes in children with Tay-Sachs, but their nervous system continues to get worse, often leading to death by age 5.

• #3 Tay-Sachs disease: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/001417.htm

  Tay-Sachs disease is a life-threatening disease of the nervous system passed down through families. […] Tay-Sachs disease is divided into infantile, juvenile, and adult forms, depending on the symptoms and when they first appear. Most people with Tay-Sachs have the infantile form. In this form, the nerve damage usually begins while the baby is still in the womb. Symptoms usually appear when the child is 3 to 6 months old. The disease tends to get worse very quickly, and the child usually dies by age 4 or 5. […] Symptoms may include any of the following: Deafness, Decreased eye contact, blindness, Decreased muscle tone (loss of muscle strength), loss of motor skills, paralysis, Slow growth and delayed mental and social skills, Dementia (loss of brain function), Increased startle reaction, Irritability, Listlessness, Seizures. […] Children with this disease have symptoms that get worse over time. They usually die by age 4 or 5. […] Symptoms appear during the first 3 to 10 months of life and progress to spasticity, seizures, and loss of all voluntary movements.

• #3 Tay-Sachs Disease: Causes and Symptoms | Doctor

  https://patient.info/doctor/tay-sachs-disease.htm

  First presents in adolescence and shows progressive neurological deficits with cognitive loss, ataxia. 1 in 3 affected patients present with psychotic symptoms. […] Tay-Sachs disease is a progressive neurodegenerative disorder. The classic infantile form is usually fatal by age 2 or 3 years. Death usually occurs due to intercurrent infection. In the juvenile form, death usually occurs by age 10-15 years; preceded by several years of vegetative state with decerebrate rigidity. Death is usually due to infection. In the adult form, most patients have a normal life expectancy.

• #3 Tay–Sachs disease – Wikipedia

  https://en.wikipedia.org/wiki/Tay%E2%80%93Sachs_disease

  A rare form of this disease, known as Adult-Onset or Late-Onset TaySachs disease, usually has its first symptoms during the 30s or 40s. In contrast to the other forms, late-onset TaySachs disease is usually not fatal as the effects can stop progressing. It is frequently misdiagnosed. It is characterized by unsteadiness of gait and progressive neurological deterioration. Symptoms of late-onset TaySachs which typically begin to be seen in adolescence or early adulthood include speech and swallowing difficulties, unsteadiness of gait, spasticity, cognitive decline, and psychiatric illness, particularly a schizophrenia-like psychosis. […] As of 2010, even with the best care, children with infantile TaySachs disease usually die by the age of 4. Children with the juvenile form are likely to die between the ages of 5-15, while the lifespans of those with the adult form will probably not be affected.

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