Results 91 to 100 of about 351,427 (294)

Paternal Obesity‐Induced H3K27me3 Elevation Leads to MANF‐Mediated Transgenerational Metabolic Dysfunction in Female Offspring

Advanced Science, EarlyView.
Paternal lifestyle and environmental exposures play a critical role in the offspring's health. The present study established a paternal obesity model and demonstrated that elevated H3K27me3 levels in sperm persist through the 8‐cell embryo stage. This epigenetic modification triggers transgenerational decrease of MANF, inducing ER stress and activating
Yajun Shi, Weisheng Li, Xi Yu, Yan Zhao, Dan Zhu, Yueyang Song, Zejun Zhao, Yannan Gu, Bin Wei, Lingjun Li, Dongyi Yu, Pengjie Zhang, Qinqin Gao, Miao Sun   +13 more
wiley   +1 more source

Forecasting Fertility with Parametric Mixture Models [PDF]

arXiv, 2019
This paper sets out a forecasting method that employs a mixture of parametric functions to capture the pattern of fertility with respect to age. The overall level of cohort fertility is decomposed over the range of fertile ages using a mixture of parametric density functions.
arxiv  

Inhibition of Ferroptosis Delays Aging and Extends Healthspan Across Multiple Species

Advanced Science, EarlyView.
This study identifies ferroptosis as a key driver of cellular senescence, with its inhibition delaying aging and extending healthspan across species. During senescence, ferroptosis worsens, increasing oxidative stress and lipid peroxidation, which accelerate aging.
Hai‐Jun Fu, Xing‐Yue Zhou, Da‐Lian Qin, Qan Qiao, Qiao‐Zhi Wang, Shi‐Ying Li, Yun‐Fei Zhu, Ya‐Ping Li, Jiang‐Min Zhou, Hui Cai, Fei‐Hong Huang, Lu Yu, Long Wang, An‐Guo Wu, Jian‐Ming Wu, Xiao‐Gang Zhou   +15 more
wiley   +1 more source

Origins, Dispersal, and Impact: Bidirectional Introgression Between Chinese and European Pig Populations

Advanced Science, EarlyView.
This study investigates bidirectional introgression between Chinese and European pig populations, revealing 3558 introgressed genomic segments and 30 structural variations. Analysis of the BMP2 region suggests its role in body size enhancement. By integrating ancient and modern genomes, the study highlights the impact of introgression on genetic ...
Yibin Qiu, Langqing Liu, Min Huang, Donglin Ruan, Rongrong Ding, Zebin Zhang, Enqin Zheng, Shiyuan Wang, Shaoxiong Deng, Xianglun Meng, Xinyan Cheng, Jiaxin Shi, Yingshan Yang, Fuchen Zhou, Sixiu Huang, Huaqiang Yang, Zicong Li, Gengyuan Cai, Zhenfang Wu, Jie Yang   +19 more
wiley   +1 more source

Consumption of hookahs, e-cigarettes, and classic cigarettes and the impact on medically assisted reproduction treatment

Scientific Reports
Smoking of classic cigarettes has been well-established as a health risk factor, including cardiovascular, neurological, and pulmonary diseases. Adverse effects on human reproduction have also been shown. Smokers are assumed to have a significantly lower
Tom Trapphoff, Carolin Ontrup, Sonja Krug, Stefan Dieterle   +3 more
doaj   +1 more source

Competition among eggs shifts to cooperation along a sperm supply gradient in an external fertilizer [PDF]

arXiv, 2015
Competition among gametes for fertilization imposes strong selection. For external fertilizers, this selective pressure extends to eggs for which spawning conditions can range from sperm limitation (competition among eggs) to sexual conflict (overabundance of competing sperm toxic to eggs).
arxiv  

Neophytadiene, a Plant Specialized Metabolite, Mediates the Virus‐Vector‐Plant Tripartite Interactions

Advanced Science, EarlyView.
Tomato chlorosis virus (ToCV) infection induces production of neophytadiene, a volatile resulting from chlorophyll degradation that is highly attractive to whiteflies. OBP2, an odorant‐binding protein from insect vector B. tabaci, exhibits a strong binding affinity for neophytadiene.
Xiao‐bin Shi, Hao Yue, Yan Wei, Evan L. Preisser, Pei Wang, Jiao Du, Ji‐xing Xia, Kai‐long Li, Xin Yang, Jian‐bin Chen, Song‐bai Zhang, Zhan‐hong Zhang, Xu‐guo Zhou, De‐yong Zhang, Yong Liu   +14 more
wiley   +1 more source

Fertility, Strong Fertility, and Postorder Wilf Equivalence [PDF]

arXiv, 2019
We introduce "fertility Wilf equivalence," "strong fertility Wilf equivalence," and "postorder Wilf equivalence," three variants of Wilf equivalence for permutation classes that formalize some phenomena that have appeared in the study of West's stack-sorting map. We introduce "sliding operators" and show that they induce useful bijections among sets of
arxiv  

PABPN1 Couples the Polyadenylation and Translation of Maternal Transcripts to Mouse Oocyte Meiotic Maturation

Advanced Science, EarlyView.
This study reveals that cytoplasmic PABPN1 is essential for mouse oocyte meiotic maturation by coordinating polyadenylation, translation, and degradation of maternal mRNAs. Pabpn1 knockout disrupts CDK1 activation, spindle formation, and chromosome alignment by impairing maturation‐promoting factor (MPF) regulation and BTG4‐mediated deadenylation ...
Xing‐Xing Dai, Yu‐Ke Wu, Shuai‐Bo Pi, Feng‐Jie Hu, Yun‐Wen Wu, Hang Qi, Zhi‐Yan Jiang, Long‐Wen Zhao, Heng‐Yu Fan   +8 more
wiley   +1 more source

Examination of runs of homozygosity in relation to height in an endogamous Namibian population

American Journal of Biological Anthropology, Volume 180, Issue 1, Page 207-215, January 2023., 2023
Abstract Objectives Height is a complex, highly heritable polygenic trait subject to both genetic composition and environmental influences. Recent studies suggest that a large proportion of height heritability is determined by the cumulative effect of many low allele frequency variants across the genome. Previous research has also identified an inverse
Natalie Swinford, Brenna Gallagher, Jacob Sheehama, Meng Lin, Sean Prall, Brooke Scelza, Brenna M. Henn   +6 more
wiley   +1 more source