Overview
Laurence-Moon-Biedl-Bardet (LMBB) syndrome is a rare genetic disorder characterized by retinitis pigmentosa, obesity, intellectual disability, hypogonadism, and often includes additional features such as hexadactyly or other orthopedic anomalies 13.Diagnosis
Key Diagnostic Criteria: Retinitis pigmentosa, obesity, intellectual disability, hypogonadism, and polydactyly or other orthopedic anomalies 13.
Recommended Tests:
- Ophthalmic examination to confirm retinitis pigmentosa.
- Genetic testing for LMBB syndrome-related mutations.
- Hormonal assessments to evaluate hypogonadism.
- Liver function tests and imaging if congenital hepatic fibrosis is suspected 2.Management
First-Line Treatments:
- Lifestyle modifications including diet and exercise to manage obesity.
- Hormone replacement therapy for hypogonadism 3.
Adjunctive Treatments:
- Management of diabetes mellitus with standard antidiabetic medications as needed 2.
- Supportive care for neurological and orthopedic issues based on specific manifestations.Special Populations
Pregnancy: Limited data; close monitoring of metabolic and hormonal status required 3.
Pediatrics: Early intervention for developmental delays and orthopedic anomalies 13.
Comorbidities: Specific attention to coexisting conditions like dyslipoproteinaemia and congenital hepatic fibrosis, with tailored management approaches 12.Key Recommendations
Confirm diagnosis through comprehensive clinical evaluation including ophthalmologic, genetic, and hormonal assessments (Evidence: Moderate 123).
Implement lifestyle modifications and consider hormone replacement therapy for managing hypogonadism (Evidence: Moderate 3).
Monitor and manage coexisting conditions such as diabetes and hepatic dysfunction with appropriate medical interventions (Evidence: Weak 2).References
1 Desai HH, Patel M, Gonsai RN. Laurence Moon Bardet Biedl syndrome associated with dyslipoproteinaemia. Journal of the Indian Medical Association 2011. link
2 Nakamura F, Sasaki H, Kajihara H, Yamanoue M. Laurence-Moon-Biedl syndrome accompanied by congenital hepatic fibrosis. Journal of gastroenterology and hepatology 1990. link
3 Weiss M, Meshulam B, Wijsenbeek H. The possible relationship between Laurence-Moon-Biedl-Bardet syndrome and a schizophrenic-like psychosis. The Journal of nervous and mental disease 1981. link