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Related Concept Videos

Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
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Familial macroglossia-omphalocele syndrome.

J Chemke

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    This summary is machine-generated.

    Macroglossia-omphalocele syndrome, a genetic disorder, affects infants with varied symptoms. This study suggests an autosomal recessive inheritance pattern with many incomplete cases.

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    Area of Science:

    • Genetics
    • Pediatrics
    • Endocrinology

    Background:

    • Macroglossia-omphalocele syndrome is a rare congenital disorder.
    • Understanding its inheritance pattern is crucial for genetic counseling.
    • Previous studies have described various clinical manifestations.

    Observation:

    • A family (kindred) with 8 affected infants presented with macroglossia-omphalocele syndrome.
    • Clinical presentations ranged from complete syndrome to isolated adrenal nodular hyperplasia with cytomegaly.
    • All patients had normal chromosome analysis.

    Findings:

    • The syndrome appears to be inherited as an autosomal recessive trait.
    • A significant proportion of affected individuals exhibited incomplete clinical forms.
    • The index patient also displayed features of Rubinstein-Taybi syndrome.

    Implications:

    • This research clarifies the autosomal recessive inheritance of macroglossia-omphalocele syndrome.
    • Recognizing incomplete forms is vital for accurate diagnosis and management.
    • The co-occurrence with Rubinstein-Taybi syndrome in one patient is likely coincidental, but warrants consideration.