Shidou Zhao1, Guangyu Li1, Raymond Dalgleish2, Svetlana Vujovic3, Xue Jiao1, Jin Li4, Joe Leigh Simpson5, Yingying Qin1, Maja Ivanisevic2, Miomira Ivovic2, Milina Tancic2, Farook Al-Azzawi6, Zi-Jiang Chen7. 1. Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People's Republic of China. 2. Department of Genetics, University of Leicester, Leicester, United Kingdom. 3. Faculty of Medicine, University of Belgrade, Clinic of Endocrinology, Clinical Center of Serbia, Belgrade, Serbia. 4. Gynaecology Research Unit, University Hospitals of Leicester, Leicester, United Kingdom. 5. Research and Global Programs, March of Dimes Foundation, White Plains, New York; Human and Molecular Genetics, Obstetrics and Gynecology, Herbert Wertheim College of Medicine, Florida International University, Miami, Florida. 6. Gynaecology Research Unit, University Hospitals of Leicester, Leicester, United Kingdom. Electronic address: fa2@leicester.ac.uk. 7. Center for Reproductive Medicine, Provincial Hospital Affiliated to Shandong University, National Research Center for Assisted Reproductive Technology and Reproductive Genetics, The Key Laboratory for Reproductive Endocrinology of Ministry of Education, Shandong Provincial Key Laboratory of Reproductive Medicine, Jinan, People's Republic of China; Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China. Electronic address: chenzijiang@hotmail.com.
Abstract
OBJECTIVE: To investigate whether gene variants of SOHLH1 exist in Chinese and Serbian patients with primary ovarian insufficiency (POI). DESIGN: Case-control genetic study. SETTING: University hospitals. PATIENT(S): A total of 364 Han Chinese and 197 Serbian women with nonsyndromic POI and ethnically matched controls. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): SOHLH1 gene sequencing. RESULT(S): We found 10 novel heterozygous variants in our cohorts of 561 women with POI but none in the 600 ethnically matched controls. Statistical and bioinformatic analyses indicated that three of the eight variants in Chinese POI cases are potentially disease causing. They comprise two missense variants (p.Ser317Phe and p.Glu376Lys) that might each change activity of the SOHLH1 protein as a transcription factor and one variant (c.*118C>T) located in the 3' untranslated region of the SOHLH1 gene, which might generate a new binding site for the microRNA hsa-miR-888-5p. Of the two variants in the Serbian POI cases, both were synonymous, and no missense variant was identified. The allele frequencies of some known single-nucleotide polymorphisms were statistically significantly different between patients and controls in both the Chinese and Serbian groups. CONCLUSION(S): Our results suggest that SOHLH1 may be regarded as a new candidate gene for POI.
OBJECTIVE: To investigate whether gene variants of SOHLH1 exist in Chinese and Serbian patients with primary ovarian insufficiency (POI). DESIGN: Case-control genetic study. SETTING: University hospitals. PATIENT(S): A total of 364 Han Chinese and 197 Serbian women with nonsyndromic POI and ethnically matched controls. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): SOHLH1 gene sequencing. RESULT(S): We found 10 novel heterozygous variants in our cohorts of 561 women with POI but none in the 600 ethnically matched controls. Statistical and bioinformatic analyses indicated that three of the eight variants in Chinese POI cases are potentially disease causing. They comprise two missense variants (p.Ser317Phe and p.Glu376Lys) that might each change activity of the SOHLH1 protein as a transcription factor and one variant (c.*118C>T) located in the 3' untranslated region of the SOHLH1 gene, which might generate a new binding site for the microRNA hsa-miR-888-5p. Of the two variants in the Serbian POI cases, both were synonymous, and no missense variant was identified. The allele frequencies of some known single-nucleotide polymorphisms were statistically significantly different between patients and controls in both the Chinese and Serbian groups. CONCLUSION(S): Our results suggest that SOHLH1 may be regarded as a new candidate gene for POI.
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