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논문 기본 정보

자료유형
학술저널
저자정보
Kang, Kyung Min (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Sung, Se Ra (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Park, Ji Eun (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Shin, Yun Jeong (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Park, Sang Hee (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Chin, Mi Uk (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Lyu, Sang Woo (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Cha, Dong Hyun (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center) Shim, Sung Han (Genetics Laboratory, Fertility Center of CHA Gangnam Medical Center)
저널정보
대한의학유전학회 Journal of genetic medicine Journal of genetic medicine 제13권 제1호
발행연도
2016.1
수록면
14 - 19 (6page)

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Purpose: We examined the prevalence and CGG/AGG repeat structure of expanded alleles of the FMR1 gene in preconceptional and pregnant Korean women. Materials and Methods: The CGG repeats in the FMR1 genes of 1,408 women were analyzed by polymerase chain reaction and Southern blot analysis. To estimate the prevalence of expansion alleles, the individuals were divided into low risk and high risk group. Results: Within this population, 98.4% had normal alleles and 1.6% had abnormal alleles including intermediate (0.6%), premutation (0.5%), full mutation (0.1%), and hemizygous (0.4%) alleles. There were 2 premutation alleles (1:666, 95% confidence interval [CI] 1:250-1,776) in the low risk group and 5 premutation alleles (1:15, 95% 1:6-36) in the high risk group. There were 8 intermediate alleles (1:167, 95% CI 1:130-213) in the low risk group and 1 intermediate alleles (1:76, 95% CI 1:11-533) in the high group. Six of the 7 premutation alleles did not contain AGG interruptions within the repeats and 1 had a single AGG interruption. Four of the 9 intermediate alleles contained 2-3 AGG, 4 had a single AGG, and 1 had no AGG interruptions. Conclusion: Our study demonstrates the prevalence and CGG/AGG structure of expansion alleles in Korean women. The identified premutation prevalence is higher than that of other Asian populations and lower than that of Caucasian populations. Although our study is limited by size and population bias, our findings could prove useful for genetic counseling of preconceptional or pregnant women.

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