Browsing by Author "Peng, CT"

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Polymorphism for transforming growth factor beta 1-509 (TGF-B1-509): Association with endometriosis
(2005-06-01)
Hsieh, YY
;
Chang, CC
;
Tsai, FJ
;
Peng, CT
;
Yeh, LS
Transforming growth factor beta (TGF-B) family members are multi-functional cytokines that play a key role in cellular growth, proliferation, and differentiation. The aim of the study was to investigate whether the TGF-B1-509 gene polymorphism could be used as a marker of susceptibility in endometriosis. Women were divided into two groups: endometriosis (n = 150) and non-endometriosis (n = 159). Polymorphisms for TGF-B1-509 genes were amplified by polymerase chain reaction and detected after restriction enzyme digestion. Genotypes and allelic frequencies in both groups were compared. Genotype proportions and allele frequencies of TGF-B1 gene polymorphisms differed significantly in both groups. Proportions of C homozygote, heterozygote, and T homozygote for TGF-B1 gene polymorphisms were 9.3/61.3/29.4% in the endometriosis group and 41.3/58.5/0% in the non-endometriosis group. Alleles C and T for TGF-B1 gene polymorphism were 40/60% (endometriosis) and 70.8/29.2% (non-endometriosis). Association of endometriosis with TGF-B1-509 gene polymorphism exists. T homozygote and T allele for TGF-B1 are associated with higher susceptibility to endometriosis.
T allele for VEGF gene-460 polymorphism at the 5 ''-untransiated region - Association with a higher susceptibility to endometriosis
(2004-06-01)
Hsieh, YY
;
Chang, CC
;
Tsai, FJ
;
Yeh, LS
;
Lin, CC
OBJECTIVE: To investigate whether vascular endothelial growth factor (VEGF) gene 5'-UTR-460 polymorphism could be used as a marker of susceptibility to endometriosis. STUDY DESIGN: Women were divided into 2 groups, endometriosis (n = 122) and nonendometriosis (n = 131). Polymorphisms for VEGF were detected by polymerase chain reaction and BstUI (New England Biolabs, Beverly, Massachusetts) restriction enzyme analysis. Genotypes and allelic frequencies between the groups were compared. RESULTS: Proportions of different VEGF polymorphisms in the groups were significantly different. Proportions of cuttable (C) homozygote/heterozygote/uncuttable (T) homozygote for VEGF in the groups were 0144.3155.7% and 0/63.4/36.6%, respectively. A higher percentage of T/T homozygote and T allele was present in the endometriosis population. The proportions of C/T alleles in the groups were 22.1/77.9% and 31.7/68.3%, respectively. CONCLUSION: T/T homozygotes and the T allele of the VEGF-460 gene are associated with a higher risk of endometriosis. Heterozygotes and C allele are related to the lower risk of endometriosis formation. VEGF polymorphism likely contributes to the pathogenesis of endometriosis and may become a useful marker for predicting endometriosis susceptibility.