• Hye Jin Cho, Hyun Joo Jung, Sei Kwang Kim, Jong Rak Choi, Nam Hoon Cho, and Sang Wook Bai.
• Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea.
• Yonsei Med. J. 2009 Aug 31; 50 (4): 564568564-8.

PurposeTo evaluate the possible influence of G-->T substitution at the Sp1-binding site of the COLIA1 gene on the risk of pelvic organ prolapse (POP).Materials And MethodsThe study group consisted of 15 women with advanced stage POP. Fifteen control subjects with uterine myomas among the postmenopausal women were matched for age and parity. DNA was obtained from peripheral blood leukocytes. The fragments of the first intron of the COLIA1 gene were amplified by real time polymerase chain reaction. The polymorphism was identified using LightCycler Technology with hybridization probes. Sequencing reactions were performed on each template using commercial primer.ResultsTwo groups had no significant difference in medical history, surgical, and smoking history. The homozygous peaks in two groups were noted at 57 on melting curve analysis. Sequencing reactions confirmed the G/G alleles in the 30 specimens tested. We could not find any polymorphism at the Sp1-binding site in COLIA1 gene with advanced stage POP. Statistical significance was considered to be p < .05.ConclusionThe polymorphism of the Sp1-binding site in the COLIA1 gene did not contribute to the development of POP in Korea.

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