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The Meckel syndrome in the Hutterites
American Journal of Medical Genetics
|January 1, 1980
Summary
Meckel syndrome, a rare genetic disorder, was identified in three Hutterite cases, with varying severity and consanguineous parents. This research highlights the genetic and phenotypic spectrum of Meckel syndrome in this isolated population.
Area of Science:
- Medical Genetics
- Human Genetics
- Pediatric Genetics
Background:
- Meckel syndrome is a rare autosomal recessive developmental disorder.
- Characterized by a spectrum of congenital anomalies, including central nervous system, renal, and limb malformations.
- Genetic heterogeneity and variable expressivity are hallmarks of Meckel syndrome.
Observation:
- Three cases of Meckel syndrome were identified within the Hutterite population.
- Two cases were studied prospectively, and one retrospectively via hospital records.
- All observed parents were consanguineous, suggesting potential founder effects or increased risk in this community.
Findings:
- Phenotypic presentation ranged from severe (occipital meningocele, cystic kidneys, polydactyly, microphthalmia) to milder forms (cystic kidneys, subtle ocular defects, brain abnormalities).
- Survival ranged from 5 to 13 months.
- Renal lesions showed variability, including tubular defects, not always the primary cause of mortality.
Implications:
- This study expands the understanding of Meckel syndrome's clinical and genetic variability.
- Highlights the importance of genetic counseling and early diagnosis in consanguineous populations.
- Provides insights into the phenotypic spectrum and potential genotype-phenotype correlations in Meckel syndrome.