Materiały źródłowe

• #1 Bladder exstrophy | Radiology Reference Article | Radiopaedia.org

  https://radiopaedia.org/articles/bladder-exstrophy?lang=us

  Bladder exstrophy is thought to be caused by a developmental defect of the cloacal membrane, resulting in a subsequent eversion of the bladder mucosa. This then protrudes out as a mass-like lesion. […] The estimated incidence of bladder exstrophy is 1:10,000-50,000 live births. There is a recognized male predilection with a male-to-female ratio of ~3:1. Most cases are sporadic.

• #2 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  Bladder exstrophy is a rare congenital anomaly characterized by a spectrum of anomalies involving the ventral body wall, urinary tract, genitalia, bony pelvis, spine, anus, etc. […] Multiple theories have been put forward for its etiopathogenesis; however, the exact cause still eludes us. […] Although multiple theories highlighting the etiology and pathogenesis of bladder exstrophy have been published, the exact cause still eludes us. Of all these theories, the one by Marshall and Muecke is the most accepted. An abnormally large cloacal membrane causes a wedge effect and prevents the medial migration of the mesenchymal tissue. As a result, the lower abdominal wall is not well-formed. A subsequent rupture of the cloacal membrane results in herniation of all the contents and leading to the clinical picture of bladder-exstrophy-epispadias complex.

• #3 Bladder Exstrophy | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/bladder-exstrophy

  Bladder exstrophy is a rare, complex birth defect primarily involving the genitourinary tract and musculoskeletal system. In a child with bladder exstrophy, the abdominal wall, bladder, and urethra do not fuse properly in the midline during development in the womb. As a result, the bladder is exposed on the outside of the body. […] The exact cause of bladder exstrophy is unknown. Popular theories suggest a normal structure known as the cloacal membrane might not develop normally. This may prevent appropriate tissue development, ingrowth, and the joining together of the supportive lower abdominal wall structure. Some studies show a clustering of the condition in families, suggesting that theres an inherited factor. However, the chance for parents to have another child with exstrophy of the bladder is extremely rare and unlikely.

• #4 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  Bladder exstrophy is a rare congenital anomaly characterized by a spectrum of anomalies involving the ventral body wall, urinary tract, genitalia, bony pelvis, spine, anus, etc. […] Multiple theories have been put forward for its etiopathogenesis; however, the exact cause still eludes us. […] Although multiple theories highlighting the etiology and pathogenesis of bladder exstrophy have been published, the exact cause still eludes us. Of all these theories, the one by Marshall and Muecke is the most accepted. An abnormally large cloacal membrane causes a wedge effect and prevents the medial migration of the mesenchymal tissue. As a result, the lower abdominal wall is not well-formed. A subsequent rupture of the cloacal membrane results in herniation of all the contents and leading to the clinical picture of bladder-exstrophy-epispadias complex.

• #5 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  Bladder exstrophy is a rare congenital anomaly characterized by a spectrum of anomalies involving the ventral body wall, urinary tract, genitalia, bony pelvis, spine, anus, etc. […] Multiple theories have been put forward for its etiopathogenesis; however, the exact cause still eludes us. […] Although multiple theories highlighting the etiology and pathogenesis of bladder exstrophy have been published, the exact cause still eludes us. Of all these theories, the one by Marshall and Muecke is the most accepted. An abnormally large cloacal membrane causes a wedge effect and prevents the medial migration of the mesenchymal tissue. As a result, the lower abdominal wall is not well-formed. A subsequent rupture of the cloacal membrane results in herniation of all the contents and leading to the clinical picture of bladder-exstrophy-epispadias complex.

• #6 Bladder Exstrophy – MD Searchlight

  https://mdsearchlight.com/child-health/bladder-exstrophy/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=121871

  Bladder exstrophy is a serious birth defect that impacts various parts of the body, including the lower part of the body wall, urinary tract, genitals, pelvis, spine, and anus. […] Many hypotheses have been proposed regarding what causes bladder exstrophy, but a definitive cause is yet to be determined. […] The most widely accepted theory is by Marshall and Muecke, who suggest that an abnormally large membrane in the cavity that serves as a common passage for urinary and genital structures (known as the cloacal membrane) can cause a wedge effect. This means it blocks the movement of soft tissue (known as mesenchymal tissue) towards the center. This leads to the lower part of the stomach not forming properly. […] Some experimental models suggest that the cloacal membrane rupturing too early can significantly contribute to the condition.

• #7 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  Bladder exstrophy is a rare congenital anomaly characterized by a spectrum of anomalies involving the ventral body wall, urinary tract, genitalia, bony pelvis, spine, anus, etc. […] Multiple theories have been put forward for its etiopathogenesis; however, the exact cause still eludes us. […] Although multiple theories highlighting the etiology and pathogenesis of bladder exstrophy have been published, the exact cause still eludes us. Of all these theories, the one by Marshall and Muecke is the most accepted. An abnormally large cloacal membrane causes a wedge effect and prevents the medial migration of the mesenchymal tissue. As a result, the lower abdominal wall is not well-formed. A subsequent rupture of the cloacal membrane results in herniation of all the contents and leading to the clinical picture of bladder-exstrophy-epispadias complex.

• #8 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  It has been suggested that 'the wedge-effect’ can also occur due to abnormally cephalad origin of the primordia of the genital tubercle. Some experimental models suggest premature rupture of the cloacal membrane to be a significant contributing factor. […] Several other theories, including the caudal displacement of the genital tubercle, abnormal fluid retention leading to rupture of the embryonic bladder, etc., have been proposed as possible mechanisms in the occurrence of exstrophy bladder. […] Recently, a new hypothesis has been suggested by Varma et al. They have proposed that pubic diastasis is central to the occurrence of exstrophy bladder, and it precedes exstrophy development.

• #9 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  It has been suggested that 'the wedge-effect’ can also occur due to abnormally cephalad origin of the primordia of the genital tubercle. Some experimental models suggest premature rupture of the cloacal membrane to be a significant contributing factor. […] Several other theories, including the caudal displacement of the genital tubercle, abnormal fluid retention leading to rupture of the embryonic bladder, etc., have been proposed as possible mechanisms in the occurrence of exstrophy bladder. […] Recently, a new hypothesis has been suggested by Varma et al. They have proposed that pubic diastasis is central to the occurrence of exstrophy bladder, and it precedes exstrophy development.

• #10 Bladder Exstrophy – MD Searchlight

  https://mdsearchlight.com/child-health/bladder-exstrophy/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=121871

  Bladder exstrophy is a serious birth defect that impacts various parts of the body, including the lower part of the body wall, urinary tract, genitals, pelvis, spine, and anus. […] Many hypotheses have been proposed regarding what causes bladder exstrophy, but a definitive cause is yet to be determined. […] The most widely accepted theory is by Marshall and Muecke, who suggest that an abnormally large membrane in the cavity that serves as a common passage for urinary and genital structures (known as the cloacal membrane) can cause a wedge effect. This means it blocks the movement of soft tissue (known as mesenchymal tissue) towards the center. This leads to the lower part of the stomach not forming properly. […] Some experimental models suggest that the cloacal membrane rupturing too early can significantly contribute to the condition.

• #11 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  It has been suggested that 'the wedge-effect’ can also occur due to abnormally cephalad origin of the primordia of the genital tubercle. Some experimental models suggest premature rupture of the cloacal membrane to be a significant contributing factor. […] Several other theories, including the caudal displacement of the genital tubercle, abnormal fluid retention leading to rupture of the embryonic bladder, etc., have been proposed as possible mechanisms in the occurrence of exstrophy bladder. […] Recently, a new hypothesis has been suggested by Varma et al. They have proposed that pubic diastasis is central to the occurrence of exstrophy bladder, and it precedes exstrophy development.

• #12 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  It has been suggested that 'the wedge-effect’ can also occur due to abnormally cephalad origin of the primordia of the genital tubercle. Some experimental models suggest premature rupture of the cloacal membrane to be a significant contributing factor. […] Several other theories, including the caudal displacement of the genital tubercle, abnormal fluid retention leading to rupture of the embryonic bladder, etc., have been proposed as possible mechanisms in the occurrence of exstrophy bladder. […] Recently, a new hypothesis has been suggested by Varma et al. They have proposed that pubic diastasis is central to the occurrence of exstrophy bladder, and it precedes exstrophy development.

• #13 Bladder Exstrophy – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK563156/

  It has been suggested that 'the wedge-effect’ can also occur due to abnormally cephalad origin of the primordia of the genital tubercle. Some experimental models suggest premature rupture of the cloacal membrane to be a significant contributing factor. […] Several other theories, including the caudal displacement of the genital tubercle, abnormal fluid retention leading to rupture of the embryonic bladder, etc., have been proposed as possible mechanisms in the occurrence of exstrophy bladder. […] Recently, a new hypothesis has been suggested by Varma et al. They have proposed that pubic diastasis is central to the occurrence of exstrophy bladder, and it precedes exstrophy development.

• #14 Bladder Exstrophy – MD Searchlight

  https://mdsearchlight.com/child-health/bladder-exstrophy/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=121871

  There are several other theories as well, including the downward movement of the genital tubercle, abnormal fluid storage leading to the rupture of the embryonic bladder, and others, that are proposed as potential reasons for the occurrence of bladder exstrophy. […] Theres a recent hypothesis by Varma and colleagues, who suggest that the separation of the pubic bones plays a central role in bladder exstrophy, and that it happens before the exstrophy development. […] Environmental factors also influence the risk of more severe forms of this condition. For example, mothers who smoke or are exposed to radiation during the first three months of pregnancy are more likely to have a baby with severe bladder exstrophy.

• #15 Bladder exstrophy | UM Health-Sparrow

  https://www.uofmhealthsparrow.org/departments-conditions/conditions/bladder-exstrophy

  Bladder exstrophy (EK-stroh-fee) is a rare condition present at birth. […] The cause of the condition isn’t clear, but genes may play a role. […] The cause of bladder exstrophy isn’t known. But researchers think that genetic factors likely play a role. […] What’s known is that during pregnancy, a tissue called the cloaca (klo-AY-kuh) typically covers the wall of the unborn baby’s lower stomach. Later, it’s replaced by stomach muscles. But if the cloaca bursts before the stomach muscles form, bladder exstrophy may develop.

• #16 Bladder exstrophy – Augusta HealthSearchClose SearchSearch IconSearch IconClose Search IconMobile Menu IconMobile Menu Close IconInstagramFacebookTwitterYoutube

  https://www.augustahealth.com/disease/bladder-exstrophy/

  Bladder exstrophy (EK-stroh-fee) is a rare birth defect in which the bladder develops outside the fetus. The cause of bladder exstrophy is unknown. Researchers think that a combination of genetic and environmental factors likely plays a role. […] What is known is that as the fetus grows, a structure called the cloaca (klo-A-kuh) — where reproductive, urinary and digestive openings all come together — doesn’t develop properly in babies who develop bladder exstrophy. Defects in the cloaca can vary a lot depending on the age of the fetus when the developmental error occurs.

• #17 Bladder exstrophy – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/bladder-exstrophy/symptoms-causes/syc-20391299

  Bladder exstrophy (EK-stroh-fee) is a rare condition present at birth. During pregnancy, the bladder of an unborn baby, also called a fetus, forms outside of the stomach area. This area also is called the abdomen. The exposed bladder can’t store urine or work as it should. This causes the baby to leak urine after being born. […] The cause of the condition isn’t clear, but genes may play a role. […] The cause of bladder exstrophy isn’t known. But researchers think that genetic factors likely play a role. […] What’s known is that during pregnancy, a tissue called the cloaca (klo-AY-kuh) typically covers the wall of the unborn baby’s lower stomach. Later, it’s replaced by stomach muscles. But if the cloaca bursts before the stomach muscles form, bladder exstrophy may develop.

• #18 Bladder Exstrophy: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21806-bladder-exstrophy

  Bladder exstrophy is a congenital condition that affects a babys urinary system. It occurs when the bladder develops outside of the belly. […] Healthcare providers and medical researchers arent exactly sure what causes bladder exstrophy. But theres some evidence that genetics and environmental factors may play a role. […] Risk factors for bladder exstrophy include: Family history. Adults who had bladder exstrophy as children have about a 1 in 70 chance of having a biological child with bladder exstrophy. The risk is higher if parents have another biological child with the condition. […] Bladder exstrophy more commonly affects people who are white. […] Males are up to three times more likely to have bladder exstrophy than females. […] Using assisted reproductive technology, such as in vitro fertilization (IVF), can increase the risk of bladder exstrophy. […] No, biological parents cant prevent bladder exstrophy because theres no apparent cause. If you have known risk factors, be sure to speak with a healthcare provider about potential testing and treatment plans.

• #19 Bladder Exstrophy | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/bladder-exstrophy

  Bladder exstrophy is a rare, complex birth defect primarily involving the genitourinary tract and musculoskeletal system. In a child with bladder exstrophy, the abdominal wall, bladder, and urethra do not fuse properly in the midline during development in the womb. As a result, the bladder is exposed on the outside of the body. […] The exact cause of bladder exstrophy is unknown. Popular theories suggest a normal structure known as the cloacal membrane might not develop normally. This may prevent appropriate tissue development, ingrowth, and the joining together of the supportive lower abdominal wall structure. Some studies show a clustering of the condition in families, suggesting that theres an inherited factor. However, the chance for parents to have another child with exstrophy of the bladder is extremely rare and unlikely.

• #20 Bladder Exstrophy | SpringerLink

  https://link.springer.com/10.1007%2F978-1-4614-1037-9_25

  Bladder exstrophy is a rare developmental anomaly occurring as an isolated defect in about 1/25,0001/40,000 births (Cacciari et al. 1999). […] Usually an isolated defect […] Microduplications at 22q11.21: associated with non-syndromic classic bladder exstrophy (Draaken et al. 2010) […] Microduplication at 22q11.2: reported in two patients with bladder exstrophy and hearing impairment (Lundin et al. 2010) […] Probably failure of fusion of the secondary mesoderm (from the primitive streak) in the midline of the anterior abdominal wall, with subsequent rupture of the thin wall consisting only of ectoderm and endoderm […] Early rupture (fifth week) resulting in exstrophy of the cloaca, later rupture (7th week) resulting in exstrophy of the bladder.

• #21 Evaluation of the ISL1 gene in the pathogenesis of bladder exstrophy in a Swedish cohort | Human Genome Variation

  https://www.nature.com/articles/hgv20189

  Bladder exstrophy is a congenital closure defect of the urinary bladder with a profound effect on morbidity. Although the malformation is usually sporadic, a genetic background is supported by an increased recurrence risk in relatives, higher concordance rates in monozygotic twins and several associated chromosomal aberrations. […] Although BEEC usually occurs sporadically, studies and case reports have indicated that genetic factors play a role in the pathogenesis of BEEC. Several chromosomal aberrations have been reported to be associated with BEEC. […] Together, these observations indicate a genetic background behind the congenital malformation, and most likely, several independent genetic factors may contribute. […] To date, the only consistent genetic finding in BEEC is a microduplication on chromosome 22q11 found in ~3% of all cases and often with other characteristics of the 22q11 duplication syndrome, such as hearing impairment.

• #22 Bladder Exstrophy | SpringerLink

  https://link.springer.com/10.1007%2F978-1-4614-1037-9_25

  Bladder exstrophy is a rare developmental anomaly occurring as an isolated defect in about 1/25,0001/40,000 births (Cacciari et al. 1999). […] Usually an isolated defect […] Microduplications at 22q11.21: associated with non-syndromic classic bladder exstrophy (Draaken et al. 2010) […] Microduplication at 22q11.2: reported in two patients with bladder exstrophy and hearing impairment (Lundin et al. 2010) […] Probably failure of fusion of the secondary mesoderm (from the primitive streak) in the midline of the anterior abdominal wall, with subsequent rupture of the thin wall consisting only of ectoderm and endoderm […] Early rupture (fifth week) resulting in exstrophy of the cloaca, later rupture (7th week) resulting in exstrophy of the bladder.

• #23 Evaluation of the ISL1 gene in the pathogenesis of bladder exstrophy in a Swedish cohort | Human Genome Variation

  https://www.nature.com/articles/hgv20189

  The association to this region on chromosome 5q11.2 was subsequently replicated in another study of 268 CBE cases from different populations, including 116 DNA samples from Sweden, in which a significant association was identified between CBE and another variant, rs6874700 single-nucleotide polymorphism, located 16kb from rs9291768 in the ISL1 gene locus. […] These two studies suggest ISL1 as a major candidate gene for the development of CBE. […] We did not detect any known or likely pathogenic variants in the ISL1 gene in 125 Swedish BEEC patients, indicating that variation in the ISL1 gene is not a common genetic mechanism of BEEC development in the Swedish population. […] We believe that although the c.137CG was inherited from a healthy mother, that does not completely rule out this variant as disease-causing.

• #24 Evaluation of the ISL1 gene in the pathogenesis of bladder exstrophy in a Swedish cohort | Human Genome Variation

  https://www.nature.com/articles/hgv20189

  The association to this region on chromosome 5q11.2 was subsequently replicated in another study of 268 CBE cases from different populations, including 116 DNA samples from Sweden, in which a significant association was identified between CBE and another variant, rs6874700 single-nucleotide polymorphism, located 16kb from rs9291768 in the ISL1 gene locus. […] These two studies suggest ISL1 as a major candidate gene for the development of CBE. […] We did not detect any known or likely pathogenic variants in the ISL1 gene in 125 Swedish BEEC patients, indicating that variation in the ISL1 gene is not a common genetic mechanism of BEEC development in the Swedish population. […] We believe that although the c.137CG was inherited from a healthy mother, that does not completely rule out this variant as disease-causing.

• #25 Analyzing the factors that contribute to the development of embryological classical type of bladder exstrophy

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10714095/

  Bladder exstrophy is a rare congenital condition of the pelvis, bladder, and lower abdomen that opens the bladder against the abdominal wall, produces aberrant growth, short penis, upward curvature during erection, wide penis, and undescended testes. Exstrophy affects 1/30,000 newborns. […] Genetic mutations in the Hedgehog cascade pathway, Wnt signal, FGF, BMP4, Alx4, Gli3, and ISL1 cause ventral body wall closure and urinary bladder failure. External factors such as high maternal age, smoking moms, and high maternal body mass index have also been associated to bladder exstrophy. Valproic acid increases bladder exstrophy risk; chemicals and pollutants during pregnancy may increase bladder exstrophy risk. Bladder exstrophy has no identified cause despite these risk factors. […] Bladder exstrophy is assumed to have a hereditary component due to the fact that genetic factors are involved. There is an increased chance of having a child affected by bladder exstrophy if a member of your family already has the ailment; Age of the mother: Pregnant women who are above the age of 35 at the time of their pregnancy have a greater chance of having a child who is affected by bladder exstrophy; The condition known as bladder exstrophy is more prevalent in males than in girls. Male sex; Tobacco use: Pregnant women who smoke have a significantly increased risk of having a child who is affected by bladder exstrophy; drugs: Certain drugs, such as valproic acid, have been linked to an increased incidence of bladder exstrophy. This is particularly true for women; Environmental factors: During pregnancy, being exposed to certain environmental chemicals and pollutants may raise the risk of bladder exstrophy. Despite the fact that these risk factors have been found, the specific etiology of bladder exstrophy is not completely understood. […] The chance of this happening to the next child is 1 in 100 or 1 in 70 if the parents have the same history. Risk factors and etiology are unclear and are not historical.

• #26 Current management of classic bladder exstrophy in the modern era | African Journal of Urology | Full Text

  https://afju.springeropen.com/articles/10.1186/s12301-023-00356-4

  The effect of this overdevelopment causes (1) limited development of lower abdominal musculature and pelvic bones and (2) a propensity for early rupture of the cloacal membrane due to innate instability. […] The timing and location of rupture of the cloacal membrane are thought to dictate the patients presentation along the Bladder Exstrophy-Epispadias spectrum. […] While several genetic studies are underway, the majority of BEEC cases are sporadic without Mendelian inheritance. […] Some evidence suggests an association between CBE and the CASPR3 gene, p63 tumor suppressor gene, and 22q11.2 duplications. […] The p63 gene, a member of the p53 tumor suppressor gene family, may have the strongest association with CBE as it is highly expressed within the bladder and overlying skin.

• #27 Evaluation of the ISL1 gene in the pathogenesis of bladder exstrophy in a Swedish cohort | Human Genome Variation

  https://www.nature.com/articles/hgv20189

  Further support for the involvement of the ISL1 gene in human bladder development was gathered from RNA sequencing in four embryonic and three fetal human bladders collected during weeks 510. Our data indicated moderate-to-high ISL1 gene expression in human embryonic and fetal bladder during the period of closing of the abdominal and bladder wall, supporting the importance of the gene in human fetal bladder development. […] In conclusion, we did not detect any known or likely pathogenic variants in the ISL1 gene in 125 Swedish BEEC patients, indicating that variation in the ISL1 gene is not a common genetic mechanism of BEEC development in the Swedish population.

• #28 Bladder Exstrophy: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21806-bladder-exstrophy

  Bladder exstrophy is a congenital condition that affects a babys urinary system. It occurs when the bladder develops outside of the belly. […] Healthcare providers and medical researchers arent exactly sure what causes bladder exstrophy. But theres some evidence that genetics and environmental factors may play a role. […] Risk factors for bladder exstrophy include: Family history. Adults who had bladder exstrophy as children have about a 1 in 70 chance of having a biological child with bladder exstrophy. The risk is higher if parents have another biological child with the condition. […] Bladder exstrophy more commonly affects people who are white. […] Males are up to three times more likely to have bladder exstrophy than females. […] Using assisted reproductive technology, such as in vitro fertilization (IVF), can increase the risk of bladder exstrophy. […] No, biological parents cant prevent bladder exstrophy because theres no apparent cause. If you have known risk factors, be sure to speak with a healthcare provider about potential testing and treatment plans.

• #29 Bladder Exstrophy | Nationwide Children’s Hospital

  https://www.nationwidechildrens.org/conditions/bladder-exstrophy

  Bladder exstrophy is rare, occurring in one in 10,000-50,000 births. The exact cause is still not known. It happens during development, before birth. The most likely reason is due to family history. If a parent has bladder exstrophy, the risk of having a child with the condition is 1 in 70. If a family has a child with bladder exstrophy, there is a 1 in 100 chance of having a second child with the condition. The condition is more common among boys than girls. […] Bladder exstrophy involves organs of the urinary tract, as well as the digestive and reproductive systems. Defects of the abdominal wall, bladder, genitals, pelvic bones, final section of the large intestine (rectum) and opening at the end of the rectum (anus) can occur.

• #30 Bladder Exstrophy | Texas Children’s

  https://www.texaschildrens.org/content/conditions/bladder-exstrophy

  Bladder exstrophy (BE) is a rare, complex birth defect in which the baby’s bladder protrudes through an opening in the lower abdomen. Bladder exstrophy occurs in early in fetal development and is more often in males than females. […] The cause of bladder exstrophy is not known. Some studies suggest that it is inherited from the child’s parents. The risk of having a child with bladder exstrophy is 1 in 70 if one or both parents have had the condition themselves. However, the chance for parents to have more than one child with bladder exstrophy is less than 1%.

• #31 Bladder Exstrophy: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21806-bladder-exstrophy

  Bladder exstrophy is a congenital condition that affects a babys urinary system. It occurs when the bladder develops outside of the belly. […] Healthcare providers and medical researchers arent exactly sure what causes bladder exstrophy. But theres some evidence that genetics and environmental factors may play a role. […] Risk factors for bladder exstrophy include: Family history. Adults who had bladder exstrophy as children have about a 1 in 70 chance of having a biological child with bladder exstrophy. The risk is higher if parents have another biological child with the condition. […] Bladder exstrophy more commonly affects people who are white. […] Males are up to three times more likely to have bladder exstrophy than females. […] Using assisted reproductive technology, such as in vitro fertilization (IVF), can increase the risk of bladder exstrophy. […] No, biological parents cant prevent bladder exstrophy because theres no apparent cause. If you have known risk factors, be sure to speak with a healthcare provider about potential testing and treatment plans.

• #32 Bladder Exstrophy: Signs, Causes & Treatment | Baptist Health

  https://www.baptisthealth.com/care-services/conditions-treatments/bladder-exstrophy

  Bladder exstrophy is a rare congenital abnormality, in which the bladder develops inside out. […] The cause of bladder exstrophy is unknown. It is speculated that genetic and environmental factors play a contributing role in the development of the condition. […] Children who are firstborn or have a family member with bladder exstrophy have a greater risk of developing the condition. […] Males have a higher risk of developing bladder exstrophy. […] White people have a higher risk of developing bladder exstrophy. […] Children who are born using assisted reproduction have a greater risk of developing bladder exstrophy.

• #33 Bladder Exstrophy: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21806-bladder-exstrophy

  Bladder exstrophy is a congenital condition that affects a babys urinary system. It occurs when the bladder develops outside of the belly. […] Healthcare providers and medical researchers arent exactly sure what causes bladder exstrophy. But theres some evidence that genetics and environmental factors may play a role. […] Risk factors for bladder exstrophy include: Family history. Adults who had bladder exstrophy as children have about a 1 in 70 chance of having a biological child with bladder exstrophy. The risk is higher if parents have another biological child with the condition. […] Bladder exstrophy more commonly affects people who are white. […] Males are up to three times more likely to have bladder exstrophy than females. […] Using assisted reproductive technology, such as in vitro fertilization (IVF), can increase the risk of bladder exstrophy. […] No, biological parents cant prevent bladder exstrophy because theres no apparent cause. If you have known risk factors, be sure to speak with a healthcare provider about potential testing and treatment plans.

• #34 Bladder Exstrophy: Signs, Causes & Treatment | Baptist Health

  https://www.baptisthealth.com/care-services/conditions-treatments/bladder-exstrophy

  Bladder exstrophy is a rare congenital abnormality, in which the bladder develops inside out. […] The cause of bladder exstrophy is unknown. It is speculated that genetic and environmental factors play a contributing role in the development of the condition. […] Children who are firstborn or have a family member with bladder exstrophy have a greater risk of developing the condition. […] Males have a higher risk of developing bladder exstrophy. […] White people have a higher risk of developing bladder exstrophy. […] Children who are born using assisted reproduction have a greater risk of developing bladder exstrophy.

• #35 Bladder Exstrophy: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/21806-bladder-exstrophy

  Bladder exstrophy is a congenital condition that affects a babys urinary system. It occurs when the bladder develops outside of the belly. […] Healthcare providers and medical researchers arent exactly sure what causes bladder exstrophy. But theres some evidence that genetics and environmental factors may play a role. […] Risk factors for bladder exstrophy include: Family history. Adults who had bladder exstrophy as children have about a 1 in 70 chance of having a biological child with bladder exstrophy. The risk is higher if parents have another biological child with the condition. […] Bladder exstrophy more commonly affects people who are white. […] Males are up to three times more likely to have bladder exstrophy than females. […] Using assisted reproductive technology, such as in vitro fertilization (IVF), can increase the risk of bladder exstrophy. […] No, biological parents cant prevent bladder exstrophy because theres no apparent cause. If you have known risk factors, be sure to speak with a healthcare provider about potential testing and treatment plans.

• #36 Bladder Exstrophy | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/conditions/bladder-exstrophy/

  In babies with bladder exstrophy, the skin, muscle and pelvic hip bones of the lower belly are malformed, causing the bladder to protrude from the skin. […] This condition occurs in as few as 1 in 50,000 live births. However, a family history makes it more likely. Children born to a parent with bladder exstrophy have about a 1-in-70 chance of having it, and if parents have one child with this condition, they have a 1-in-100 chance of having another child with it. […] Recent studies also suggest that children born as the result of fertility treatments are 7 times more likely to have bladder exstrophy than those conceived without fertility assistance. There is a slightly increased rate of bladder exstrophy in mothers who use progestins (a natural or synthetic steroid hormone, such as progesterone, to maintain pregnancy). Males are five times more likely than females to be diagnosed.

• #37 Analyzing the factors that contribute to the development of embryological classical type of bladder exstrophy

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10714095/

  Bladder exstrophy is a rare congenital condition of the pelvis, bladder, and lower abdomen that opens the bladder against the abdominal wall, produces aberrant growth, short penis, upward curvature during erection, wide penis, and undescended testes. Exstrophy affects 1/30,000 newborns. […] Genetic mutations in the Hedgehog cascade pathway, Wnt signal, FGF, BMP4, Alx4, Gli3, and ISL1 cause ventral body wall closure and urinary bladder failure. External factors such as high maternal age, smoking moms, and high maternal body mass index have also been associated to bladder exstrophy. Valproic acid increases bladder exstrophy risk; chemicals and pollutants during pregnancy may increase bladder exstrophy risk. Bladder exstrophy has no identified cause despite these risk factors. […] Bladder exstrophy is assumed to have a hereditary component due to the fact that genetic factors are involved. There is an increased chance of having a child affected by bladder exstrophy if a member of your family already has the ailment; Age of the mother: Pregnant women who are above the age of 35 at the time of their pregnancy have a greater chance of having a child who is affected by bladder exstrophy; The condition known as bladder exstrophy is more prevalent in males than in girls. Male sex; Tobacco use: Pregnant women who smoke have a significantly increased risk of having a child who is affected by bladder exstrophy; drugs: Certain drugs, such as valproic acid, have been linked to an increased incidence of bladder exstrophy. This is particularly true for women; Environmental factors: During pregnancy, being exposed to certain environmental chemicals and pollutants may raise the risk of bladder exstrophy. Despite the fact that these risk factors have been found, the specific etiology of bladder exstrophy is not completely understood. […] The chance of this happening to the next child is 1 in 100 or 1 in 70 if the parents have the same history. Risk factors and etiology are unclear and are not historical.

• #38 Analyzing the factors that contribute to the development of embryological classical type of bladder exstrophy

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10714095/

  Bladder exstrophy is a rare congenital condition of the pelvis, bladder, and lower abdomen that opens the bladder against the abdominal wall, produces aberrant growth, short penis, upward curvature during erection, wide penis, and undescended testes. Exstrophy affects 1/30,000 newborns. […] Genetic mutations in the Hedgehog cascade pathway, Wnt signal, FGF, BMP4, Alx4, Gli3, and ISL1 cause ventral body wall closure and urinary bladder failure. External factors such as high maternal age, smoking moms, and high maternal body mass index have also been associated to bladder exstrophy. Valproic acid increases bladder exstrophy risk; chemicals and pollutants during pregnancy may increase bladder exstrophy risk. Bladder exstrophy has no identified cause despite these risk factors. […] Bladder exstrophy is assumed to have a hereditary component due to the fact that genetic factors are involved. There is an increased chance of having a child affected by bladder exstrophy if a member of your family already has the ailment; Age of the mother: Pregnant women who are above the age of 35 at the time of their pregnancy have a greater chance of having a child who is affected by bladder exstrophy; The condition known as bladder exstrophy is more prevalent in males than in girls. Male sex; Tobacco use: Pregnant women who smoke have a significantly increased risk of having a child who is affected by bladder exstrophy; drugs: Certain drugs, such as valproic acid, have been linked to an increased incidence of bladder exstrophy. This is particularly true for women; Environmental factors: During pregnancy, being exposed to certain environmental chemicals and pollutants may raise the risk of bladder exstrophy. Despite the fact that these risk factors have been found, the specific etiology of bladder exstrophy is not completely understood. […] The chance of this happening to the next child is 1 in 100 or 1 in 70 if the parents have the same history. Risk factors and etiology are unclear and are not historical.

• #39 Bladder Exstrophy – MD Searchlight

  https://mdsearchlight.com/child-health/bladder-exstrophy/?utm_source=pubmedlink&utm_campaign=MDS&utm_content=121871

  There are several other theories as well, including the downward movement of the genital tubercle, abnormal fluid storage leading to the rupture of the embryonic bladder, and others, that are proposed as potential reasons for the occurrence of bladder exstrophy. […] Theres a recent hypothesis by Varma and colleagues, who suggest that the separation of the pubic bones plays a central role in bladder exstrophy, and that it happens before the exstrophy development. […] Environmental factors also influence the risk of more severe forms of this condition. For example, mothers who smoke or are exposed to radiation during the first three months of pregnancy are more likely to have a baby with severe bladder exstrophy.

• #40 Analyzing the factors that contribute to the development of embryological classical type of bladder exstrophy

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10714095/

  Bladder exstrophy is a rare congenital condition of the pelvis, bladder, and lower abdomen that opens the bladder against the abdominal wall, produces aberrant growth, short penis, upward curvature during erection, wide penis, and undescended testes. Exstrophy affects 1/30,000 newborns. […] Genetic mutations in the Hedgehog cascade pathway, Wnt signal, FGF, BMP4, Alx4, Gli3, and ISL1 cause ventral body wall closure and urinary bladder failure. External factors such as high maternal age, smoking moms, and high maternal body mass index have also been associated to bladder exstrophy. Valproic acid increases bladder exstrophy risk; chemicals and pollutants during pregnancy may increase bladder exstrophy risk. Bladder exstrophy has no identified cause despite these risk factors. […] Bladder exstrophy is assumed to have a hereditary component due to the fact that genetic factors are involved. There is an increased chance of having a child affected by bladder exstrophy if a member of your family already has the ailment; Age of the mother: Pregnant women who are above the age of 35 at the time of their pregnancy have a greater chance of having a child who is affected by bladder exstrophy; The condition known as bladder exstrophy is more prevalent in males than in girls. Male sex; Tobacco use: Pregnant women who smoke have a significantly increased risk of having a child who is affected by bladder exstrophy; drugs: Certain drugs, such as valproic acid, have been linked to an increased incidence of bladder exstrophy. This is particularly true for women; Environmental factors: During pregnancy, being exposed to certain environmental chemicals and pollutants may raise the risk of bladder exstrophy. Despite the fact that these risk factors have been found, the specific etiology of bladder exstrophy is not completely understood. […] The chance of this happening to the next child is 1 in 100 or 1 in 70 if the parents have the same history. Risk factors and etiology are unclear and are not historical.

• #41 Analyzing the factors that contribute to the development of embryological classical type of bladder exstrophy

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10714095/

  Bladder exstrophy is a rare congenital condition of the pelvis, bladder, and lower abdomen that opens the bladder against the abdominal wall, produces aberrant growth, short penis, upward curvature during erection, wide penis, and undescended testes. Exstrophy affects 1/30,000 newborns. […] Genetic mutations in the Hedgehog cascade pathway, Wnt signal, FGF, BMP4, Alx4, Gli3, and ISL1 cause ventral body wall closure and urinary bladder failure. External factors such as high maternal age, smoking moms, and high maternal body mass index have also been associated to bladder exstrophy. Valproic acid increases bladder exstrophy risk; chemicals and pollutants during pregnancy may increase bladder exstrophy risk. Bladder exstrophy has no identified cause despite these risk factors. […] Bladder exstrophy is assumed to have a hereditary component due to the fact that genetic factors are involved. There is an increased chance of having a child affected by bladder exstrophy if a member of your family already has the ailment; Age of the mother: Pregnant women who are above the age of 35 at the time of their pregnancy have a greater chance of having a child who is affected by bladder exstrophy; The condition known as bladder exstrophy is more prevalent in males than in girls. Male sex; Tobacco use: Pregnant women who smoke have a significantly increased risk of having a child who is affected by bladder exstrophy; drugs: Certain drugs, such as valproic acid, have been linked to an increased incidence of bladder exstrophy. This is particularly true for women; Environmental factors: During pregnancy, being exposed to certain environmental chemicals and pollutants may raise the risk of bladder exstrophy. Despite the fact that these risk factors have been found, the specific etiology of bladder exstrophy is not completely understood. […] The chance of this happening to the next child is 1 in 100 or 1 in 70 if the parents have the same history. Risk factors and etiology are unclear and are not historical.

• #42 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #43 Bladder Exstrophy | Children’s Hospital Colorado

  https://www.childrenscolorado.org/conditions-and-advice/conditions-and-symptoms/conditions/bladder-exstrophy/

  In babies with bladder exstrophy, the skin, muscle and pelvic hip bones of the lower belly are malformed, causing the bladder to protrude from the skin. […] This condition occurs in as few as 1 in 50,000 live births. However, a family history makes it more likely. Children born to a parent with bladder exstrophy have about a 1-in-70 chance of having it, and if parents have one child with this condition, they have a 1-in-100 chance of having another child with it. […] Recent studies also suggest that children born as the result of fertility treatments are 7 times more likely to have bladder exstrophy than those conceived without fertility assistance. There is a slightly increased rate of bladder exstrophy in mothers who use progestins (a natural or synthetic steroid hormone, such as progesterone, to maintain pregnancy). Males are five times more likely than females to be diagnosed.

• #44 Bladder Exstrophy and Epispadias

  https://www.cookchildrens.org/services/urology/conditions/bladder-exstrophy-epispadias/

  Bladder exstrophy is a birth defect (also known as a congenital defect) where the skin, muscle and pelvic bones at the lower part of the abdomen do not fully form. The bladder pokes outside the belly. The bladder also forms inside out and is open to the abdominal wall. The condition can affect parts of the lower urinary tract, which is called Epispadias. Epispadias occurs when the urethra does not fully form. Additionally, this causes a shorter than average penis or vagina. […] Experts don’t know what causes bladder exstrophy. The problem usually occurs four to eleven weeks after a woman gets pregnant, when organs, muscles and tissues in the embryo begin to form layers that then separate, divide and fold. […] Exstrophy does not occur because of anything the mother did or did not do during pregnancy. Some reports show bladder exstrophy is more common within some families. However, the chance for parents having a second child with bladder exstrophy is still small one percent or less.

• #45 Bladder exstrophy and epispadias | Great Ormond Street Hospital

  https://www.gosh.nhs.uk/conditions-and-treatments/conditions-we-treat/bladder-exstrophy-and-epispadias/

  Bladder exstrophy is a congenital abnormality that occurs when the skin over the lower abdominal wall (bottom part of the tummy) does not form properly. […] We do not know why bladder exstrophy occurs. It affects the developing baby during very early stages of development, at about four to six weeks into the pregnancy. This is when organs, muscles and other tissues start to form. It is not the result of anything either parent did or did not do, and is not simply an inherited condition.

• #46 Bladder Exstrophy | SpringerLink

  https://link.springer.com/10.1007%2F978-1-4614-1037-9_25

  Bladder exstrophy is a rare developmental anomaly occurring as an isolated defect in about 1/25,0001/40,000 births (Cacciari et al. 1999). […] Usually an isolated defect […] Microduplications at 22q11.21: associated with non-syndromic classic bladder exstrophy (Draaken et al. 2010) […] Microduplication at 22q11.2: reported in two patients with bladder exstrophy and hearing impairment (Lundin et al. 2010) […] Probably failure of fusion of the secondary mesoderm (from the primitive streak) in the midline of the anterior abdominal wall, with subsequent rupture of the thin wall consisting only of ectoderm and endoderm […] Early rupture (fifth week) resulting in exstrophy of the cloaca, later rupture (7th week) resulting in exstrophy of the bladder.

• #47 Bladder Exstrophy | SpringerLink

  https://link.springer.com/10.1007%2F978-1-4614-1037-9_25

  Bladder exstrophy is a rare developmental anomaly occurring as an isolated defect in about 1/25,0001/40,000 births (Cacciari et al. 1999). […] Usually an isolated defect […] Microduplications at 22q11.21: associated with non-syndromic classic bladder exstrophy (Draaken et al. 2010) […] Microduplication at 22q11.2: reported in two patients with bladder exstrophy and hearing impairment (Lundin et al. 2010) […] Probably failure of fusion of the secondary mesoderm (from the primitive streak) in the midline of the anterior abdominal wall, with subsequent rupture of the thin wall consisting only of ectoderm and endoderm […] Early rupture (fifth week) resulting in exstrophy of the cloaca, later rupture (7th week) resulting in exstrophy of the bladder.

• #48 Orphanet: Exstrophy-epispadias complex

  https://www.orpha.net/en/disease/detail/322

  A rare non-syndromic uro-genital tract malformation characterized by a spectrum of manifestations ranging in severity: epispadias (E) is the mildest form, classic exstrophy of the bladder (CEB) is the intermediate form and cloacal exstrophy (CE) the most severe form. Exstrophy-epispadias complex (EEC) involves the bladder, the genitalia, the lower abdominal wall, the pelvis and pelvic floor, and depending on the phenotype, the spine and the anus. […] The mechanisms by which genetic risk factors contribute to the embryonic maldevelopment of EEC remain unclear. EEC may result from mechanical disruption or enlargement of the cloacal membrane, preventing mesodermal cells invasion along the infraumbilical midline, leading to malformations of the bladder and/or the genitalia. The timing of rupture or developmental disturbances of the pericloacal membrane likely determines the severity.

• #49 Orphanet: Exstrophy-epispadias complex

  https://www.orpha.net/en/disease/detail/322

  A rare non-syndromic uro-genital tract malformation characterized by a spectrum of manifestations ranging in severity: epispadias (E) is the mildest form, classic exstrophy of the bladder (CEB) is the intermediate form and cloacal exstrophy (CE) the most severe form. Exstrophy-epispadias complex (EEC) involves the bladder, the genitalia, the lower abdominal wall, the pelvis and pelvic floor, and depending on the phenotype, the spine and the anus. […] The mechanisms by which genetic risk factors contribute to the embryonic maldevelopment of EEC remain unclear. EEC may result from mechanical disruption or enlargement of the cloacal membrane, preventing mesodermal cells invasion along the infraumbilical midline, leading to malformations of the bladder and/or the genitalia. The timing of rupture or developmental disturbances of the pericloacal membrane likely determines the severity.

• #50 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #51 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #52 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #53 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #54 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #55 Bladder Exstrophy: Causes, Symptoms, Treatment – We Care

  https://wecaregolp.com/bladder-exstrophy/

  Several environmental variables, including maternal nutrition, teratogenic agent exposure, and intrauterine pressure, have been proposed as possible contributors to bladder exstrophy. […] Furthermore, studies have shown that maternal smoking and irradiation during the first trimester enhance the incidence of severe variants of the BEEC spectrum. Periconceptional folate, on the other hand, lowers the incidence of these severe types. […] DNA methylation and histone changes, for example, may have a role in the genesis of bladder exstrophy. Some research has shown that epigenetic changes in genes involved in bladder and pelvic development may play a role in the illness. […] Several genetic mutations and chromosomal anomalies have been linked to the illness, and bladder exstrophy has been recorded in families with a history of the ailment. The inheritance pattern of bladder exstrophy, on the other hand, is unclear, and it is thought to be a multifactorial feature with a complicated genetic base.

• #56 The Genomic Architecture of Bladder Exstrophy Epispadias Complex

  https://www.mdpi.com/2073-4425/12/8/1149

  The bladder exstrophy–epispadias complex (BEEC) is an abdominal midline malformation comprising a spectrum of congenital genitourinary abnormalities of the abdominal wall, pelvis, urinary tract, genitalia, anus, and spine. […] The vast majority of BEEC cases are classified as non-syndromic and the etiology of this malformation is still unknown. […] In the majority of cases, BEEC is non-syndromic (that is, it is not associated with other congenital birth malformations). The etiology of this malformation is still unknown. Theories have proposed an abnormal overdevelopment of the cloacal membrane preventing medial migration of mesenchyme between the ectodermal and endodermal layers of the lower abdominal wall, resulting in abnormal development of the lower abdominal wall […] The majority of individuals affected by BEEC have no positive family history of BEEC. However, even though familial occurrence is rare, 30 multiplex families have been described.

• #57 The Genomic Architecture of Bladder Exstrophy Epispadias Complex

  https://www.mdpi.com/2073-4425/12/8/1149

  However, in the majority of affected individuals, the genetic basis of BEEC is consistent with a multifactorial etiology. […] The lack of recurrence may in part be due to reduced reproductive fitness. […] Studies have shown that individuals with CBE with non-consanguineous and non-affected parents have a recurrence risk among siblings from 0.3 to 2.3%. […] The risk of having a second affected child from non-consanguineous and non-affected parents shows an approximate 400-fold increase compared to the general population. […] A number of reports have shown recurrence of CE within families; an increased occurrence in conjoined and monozygotic twins; concordant conjoined twins, and discordant dizygotic twins. […] The higher incidence of CE in monozygotic twins compared to dizygotic twins could suggest a possible genetic contribution to the occurrence of these anomalies.

• #58 Bladder Exstrophy – Seattle Children’s

  https://www.seattlechildrens.org/conditions/bladder-exstrophy/

  What causes bladder exstrophy? There is no known cause for exstrophy. The problem happens during the first 4 to 8 weeks of pregnancy. This is when organs, muscles and tissues begin to form layers that separate, divide and fold. […] Exstrophy is not caused by something the mother did or did not do while she was pregnant. It does not run in families (not hereditary).

• #59 Bladder Exstrophy and Epispadias

  https://www.cookchildrens.org/services/urology/conditions/bladder-exstrophy-epispadias/

  Bladder exstrophy is a birth defect (also known as a congenital defect) where the skin, muscle and pelvic bones at the lower part of the abdomen do not fully form. The bladder pokes outside the belly. The bladder also forms inside out and is open to the abdominal wall. The condition can affect parts of the lower urinary tract, which is called Epispadias. Epispadias occurs when the urethra does not fully form. Additionally, this causes a shorter than average penis or vagina. […] Experts don’t know what causes bladder exstrophy. The problem usually occurs four to eleven weeks after a woman gets pregnant, when organs, muscles and tissues in the embryo begin to form layers that then separate, divide and fold. […] Exstrophy does not occur because of anything the mother did or did not do during pregnancy. Some reports show bladder exstrophy is more common within some families. However, the chance for parents having a second child with bladder exstrophy is still small one percent or less.

• #60 Bladder Exstrophy

  https://www.exstrophyresearch.org/

  Bladder exstrophy is a rare, complex congenital birth defect that involves abnormalities of multiple body systems and organs including the lower abdominal wall, bladder, pelvis, genitalia, rectum and anus. The condition is thought to occur due to abnormal development of the cloacal membrane during early fetal growth. This malformation results in protrusion of the bladder through the lower abdominal wall. […] Continued research is critical for the advancement of care for this condition. Research initiatives focusing on cutting edge treatment options and identification of causative factors including genetic and environmental sources are key towards meeting this goal. […] The advent of genomic technologies enables a complete sequencing of patients genome, which is the key first step toward identification of the exstrophy-epispadias complex disease genes.

• #61 Bladder Exstrophy

  https://www.exstrophyresearch.org/

  This project will examine the RNA expression of TGF-b through RT-PCR. Additionally, TGF-beta protein concentration and down-stream signaling proteins will be measured quantitatively through Western Blot and Elisa analysis. Other muscle-specific structural and dynamic proteins will be evaluated by Western Blot analysis. This study hopes to further identify why bladder exstrophy cells behave differently compared to controls. Doing so may elevate understanding of the pathogenesis of bladder exstrophy, provide further insight into the prognosis and treatment of the disease, and perhaps will ultimately lead to improvements in tissue engineering.

• #62 Bladder Exstrophy

  https://www.exstrophyresearch.org/

  Bladder exstrophy is a rare, complex congenital birth defect that involves abnormalities of multiple body systems and organs including the lower abdominal wall, bladder, pelvis, genitalia, rectum and anus. The condition is thought to occur due to abnormal development of the cloacal membrane during early fetal growth. This malformation results in protrusion of the bladder through the lower abdominal wall. […] Continued research is critical for the advancement of care for this condition. Research initiatives focusing on cutting edge treatment options and identification of causative factors including genetic and environmental sources are key towards meeting this goal. […] The advent of genomic technologies enables a complete sequencing of patients genome, which is the key first step toward identification of the exstrophy-epispadias complex disease genes.

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