Results 91 to 100 of about 84,845 (296)

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

E3 Siah ubiquitin ligase regulates dichotomous spermatogenesis in Sitotroga cerealella

Frontiers in Cell and Developmental Biology
Spermatogenesis in Lepidoptera holds significant importance due to its unique process of dichotomous spermatogenesis, yielding eupyrene and apyrene spermatozoa through a complex molecular mechanism.
Sakhawat Shah, Chun-Mei Shi, Karam Khamis Elgizawy, Wen-Han Yan, Gang Wu, Xiao-Ping Wang, Feng-Lian Yang   +6 more
doaj   +1 more source

Heat stress in spermatogenesis: a redox‐dependent decision network linking ROS, autophagy, and regulated cell death

Biological Reviews, EarlyView.
ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
wiley   +1 more source

Expression pattern of cellular nucleic acid-binding protein (CNBP) during embryogenesis and spermatogenesis of gibel carp

, 2009
By differential screening, we cloned the CagCNBP, demonstrated its predominant expression in ovary and testis, and reported its development behavior during folliculogenesis and oogenesis by immunofluorescence localization (Liu and Gui, Gene 365:181-192 ...
Liu, Jing-Xia, Gui, JF, Chinese Acad Sci, Grad Sch, Inst Hydrobiol, Wuhan Ctr Dev Biol,State Key Lab Freshwater Ecol, Wuhan 430072, Peoples R China, Gui, Jian-Fang, Zhai, Yan-Hua   +3 more
core   +1 more source

ER‐Localized Deadenylase PNLDC1 Suppresses Colorectal Cancer Progression by Targeting the mRNA Decay of TUBB4B

Exploration, EarlyView.
The deficiency of PNLDC1 exacerbates the advancement of CRC. PNLDC1 interacts with TUBB4B mRNA to regulate the p53–p21–CDK2–cyclin E2 pathway, thereby influencing the G2/M phase of the cell cycle. ABSTRACT Colorectal cancer (CRC) remains a leading cause of cancer‐related mortality, highlighting the urgent need for novel therapeutic strategies.
Lexin Liu, Yuelin Guan, Yuzhou Qin, Guiping Chen, Guozhen Wang, Xiang Yan, Xue Li, Lei Sun, Wei Yu, Shi Ouyang, Zhichao Ma, Zihao Xu, Zhongkai Cao, Fan Yu, Tong Zhou, Ziyou Luo, Xiangjun Chen, Yongbin Yan, Lidan Hu   +18 more
wiley   +1 more source

Transcriptome sequencing reveals the characteristics of spermatogenesis and testis development in Amphioctopus fangsiao

Aquaculture Reports
Spermatogenesis is the production of spermatozoa by the testes, a process that is associated with reproduction in males. Amphioctopus fangsiao is an economically important species from the northern coast of China, and little research has been done on ...
Yu Jiang, Xiaojie Sun, Zexin Huang, Zan Li, Xiaohui Xu, Weijun Wang, Guohua Sun, Yan Li, Bin Li, Yanwei Feng, Jianmin Yang   +10 more
doaj   +1 more source

Rho GTPases and spermatogenesis [PDF]

, 2003
Rho GTPases, such as Rho, Rac and Cdc42, are known to regulate many cellular processes including cell movement and cell adhesion. While the cellular events of germ cell movement are crucial to spermatogenesis since developing germ cells must migrate ...
Lee, WM, Cheng, C. Yan, Lee, Will M, Lui, Wing-Yee, Lee, Will M., Lui, WY, Cheng, C.Yan, Cheng, CY   +7 more
core   +1 more source

Protective Effects of Fenugreek and Stevia Extracts on Dexamethasone‐Induced Testicular Damage in a Rat Model

Food Safety and Health, EarlyView.
Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad, Medhat Ibrahim A. Omar, Mohammed I. Elkhateeb, Ahmed A. Zaky   +3 more
wiley   +1 more source

CWF19L2 is Essential for Male Fertility and Spermatogenesis by Regulating Alternative Splicing

Advanced Science
The progression of spermatogenesis along specific developmental trajectories depends on the coordinated regulation of pre‐mRNA alternative splicing (AS) at the post‐transcriptional level.
Shiyu Wang, Yuling Cai, Tongtong Li, Yan Wang, Ziyou Bao, Renxue Wang, Junchao Qin, Ziqi Wang, Yining Liu, Zhaojian Liu, Wai‐Yee Chan, Xiangfeng Chen, Gang Lu, Zi‐Jiang Chen, Tao Huang, Hongbin Liu   +15 more
doaj   +1 more source

The Potential Role of Deubiquitinating Enzymes (DUBs) in Male Fertility

Biomolecules
Ubiquitination dynamically regulates critical cellular processes, including cell cycle progression, apoptosis, DNA repair, and chromatin remodeling. Deubiquitinating enzymes (DUBs) negatively regulate protein ubiquitination and are equally important for ...
Jung Min Kim
doaj   +1 more source