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Pilot work of the 10K Chinese People Genomic Diversity Project along the Silk Road suggests a complex east-west admixture landscape and biological adaptations.
Sci China Life Sci
January 2025
Institute of Rare Diseases, West China Hospital of Sichuan University, Sichuan University, Chengdu, 610000, China.
Genomic sources from China are underrepresented in the population-specific reference database. We performed whole-genome sequencing or genome-wide genotyping on 1,207 individuals from four linguistically diverse groups (1,081 Sinitic, 56 Mongolic, 40 Turkic, and 30 Tibeto-Burman people) living in North China included in the 10K Chinese People Genomic Diversity Project (10K_CPGDP) to characterize the genetic architecture and adaptative history of ethnic groups in the Silk Road Region of China. We observed a population split between Northwest Chinese minorities (NWCMs) and Han Chinese since the Upper Paleolithic and later Neolithic genetic differentiation within NWCMs.
View Article and Find Full Text PDFGene drive-based population suppression in the malaria vector Anopheles stephensi.
Nat Commun
January 2025
Center for Bioinformatics, Center for Life Sciences, School of Life Sciences, Peking University, Beijing, China.
Gene drives are alleles that can bias the inheritance of specific traits in target populations for the purpose of modification or suppression. Here, we construct a homing suppression drive in the major urban malaria vector Anopheles stephensi targeting the female-specific exon of doublesex, incorporating two gRNAs and a nanos-Cas9 to reduce functional resistance and improve female heterozygote fitness. Our results show that the drive was recessive sterile in both females and males, with various intersex phenotypes in drive homozygotes.
View Article and Find Full Text PDFEffects of non-pharmacological interventions on biochemical hyperandrogenism in women with polycystic ovary syndrome: a systematic review and network meta-analysis.
J Ovarian Res
January 2025
LongHua Hospital Shanghai University of Traditional Chinese Medicine, No.725 Wanping South Road, Xuhui District, Shanghai, 200032, China.
Objective: To systematically evaluate the effectiveness of non-pharmacological interventions (NPIs), including electroacupuncture, exercise, diet, and lifestyle changes, in reducing androgen levels in women with polycystic ovary syndrome (PCOS) through a systematic review and network meta-analysis.
Methods: Comprehensive searches were conducted in PubMed, Embase, Cochrane Library, Web of Science, CNKI, and Wanfang up to June 2024. Randomized controlled trials (RCTs) comparing NPIs with other NPIs or placebo treatments in adult women with PCOS were included.
Mortality-related risk factors of idiopathic pulmonary fibrosis: a systematic review and meta-analysis.
J Thorac Dis
December 2024
Department of Respiratory Medicine, the First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China.
Background: Idiopathic pulmonary fibrosis (IPF) has high mortality and poor prognosis, which brings enormous burdens to families and society. We conducted this meta-analysis to analyze and summarize the risk factors associated with mortality in IPF, hoping to provide reference for clinical prevention and treatment of IPF.
Methods: We conducted a comprehensive search of PubMed, Cochrane Library, Embase, and Web of Science from inception to August 10, 2023, to include cohort studies on mortality in patients with IPF.
Kinetic analysis of strand invasion during meiosis reveals similar rates of sister- and homolog-directed repair.
bioRxiv
January 2025
School of Biological Sciences and Center for Cell and Genome Sciences, University of Utah, Salt Lake City, UT 84112.
Meiotic chromosome segregation requires reciprocal exchanges between the parental chromosomes (homologs). Exchanges are formed via tightly-regulated repair of double-strand DNA breaks (DSBs). However, since repair intermediates are mostly quantified in fixed images, our understanding of the mechanisms that control the progression of repair remains limited.
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