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Mutation and Polymorphism Analyses of INSL3 and LGR8/GREAT in 62 Japanese Patients with Cryptorchidism
- Source :
- Hormone Research in Paediatrics. 67:73-76
- Publication Year :
- 2006
- Publisher :
- S. Karger AG, 2006.
-
Abstract
- Background/Aims: Although insulin-like factor 3 (INSL3) and its receptor leucine-rich repeat-containing G protein-coupled receptor 8/G protein-coupled receptor affecting testis descent (LGR8/GREAT) are essential for the gubernacular development, mutations of INSL3 and LGR8/GREAT are infrequent in patients with cryptorchidism (CO), and there is no report documenting a positive association of CO with a polymorphism in INSL3 or LGR8/GREAT. Here, we further examined the relevance of INSL3 and LGR8/GREAT mutations and polymorphisms to the development of CO. Methods: Sixty-two Japanese CO patients and 60 fertile males were studied. INSL3 was analyzed by direct sequencing and restriction enzyme digestion, and LGR8/GREAT was examined by denaturing high-performance liquid chromatography followed by direct sequencing for exons with abnormal chromatogram patterns. Results: No definitive mutation was identified in both genes. Six polymorphisms were detected in INSL3 or LGR8/GREAT and Thr/Thr genotype of Ala60Thr polymorphism in INSL3 was strongly associated with CO (p = 0.0024, odds ratio = 5.3, 95% confidence interval = 1.7–17). Conclusion: The results, in conjunction with the previous data, suggest that mutations of INSL3 and LGR8/GREAT remain rare, and that the Thr/Thr genotype of Ala60Thr polymorphism in INSL3 may constitute a susceptibility factor for the development of CO.
- Subjects :
- Genetics
endocrine system
medicine.medical_specialty
Mutation
Endocrinology, Diabetes and Metabolism
Odds ratio
Biology
medicine.disease_cause
Exon
Endocrinology
Polymorphism (computer science)
Internal medicine
Pediatrics, Perinatology and Child Health
Genotype
medicine
Mutation testing
Receptor
Gene
Subjects
Details
- ISSN :
- 16632826 and 16632818
- Volume :
- 67
- Database :
- OpenAIRE
- Journal :
- Hormone Research in Paediatrics
- Accession number :
- edsair.doi...........17100bcd23f805c891be672c89070457