Results 1 to 10 of about 54,668 (320)

Mechanism of Acrosome Biogenesis in Mammals

Frontiers in Cell and Developmental Biology, 2019
During sexual reproduction, two haploid gametes fuse to form the zygote, and the acrosome is essential to this fusion process (fertilization) in animals.
Muhammad Babar Khawar, Wei Li, Hui Gao
exaly   +4 more sources

Asthenozoospermic stallions tend to have high acrosome reacted spermatozoa as evidenced by dual fluorescent staining assay

Indian Journal of Animal Sciences, 2022
 Acrosome intactness of spermatozoa is the critical factor for establishing sperm reservoir in oviduct and for fertilizing an oocyte. However, frozen thawed spermatozoa tend to show higher proportion of acrosome reacted spermatozoa thereby compromising ...
KATHAN RAVAL, NILENDU PAUL, PRADEEP NAG, ELANGO K, YASH PAL, LEGHA R A, T R TALLURI, ARUMUGAM KUMARESAN   +7 more
doaj   +3 more sources

Characterization of a monoclonal antibody that induces the acrosome reaction of sea urchin sperm. [PDF]

, 1987
A monoclonal antibody, J18/29, induces the acrosome reaction (AR) in spermatozoa of the sea urchin Strongylocentrotus purpuratus. J18/29 induces increases in both intracellular Ca2+ and intracellular pH similar to those occurring upon induction of the AR
Ebina, Y, Meinhof, CG, Schackmann, RW, Trimmer, JS, Vacquier, VD   +4 more
core   +3 more sources

Effects of Caffeic Acid Supplementation on Human Sperm Against In Vitro-Induced Oxidative Stress: Nrf2 Molecular Pathway [PDF]

Antioxidants
Oxidative stress (OS) is a major cause of defective sperm function. During laboratory handling, gametes are exposed to OS, potentially mitigated by in vitro antioxidant supplementation.
Laura Liguori, Cinzia Signorini, Giulia Collodel, Caterina Marcucci, Elena Moretti   +4 more
doaj   +2 more sources

Role of the Ca²⁺-ATPase Pump (SERCA) in Capacitation and the Acrosome Reaction of Cryopreserved Bull Spermatozoa [PDF]

Cells
Cryopreservation of sperm is a resource used for artificial insemination. In the case of bovines, it ensures the reproduction of animals through cells from males with a highlighted genetic background. The fertilisation capacity of sperm cells is achieved
Maia A. Rodríguez, Alejandro Orlowski, Enrique L. Portiansky, Paola Ferrero   +3 more
doaj   +2 more sources

Novel HYDIN variants associated with male infertility in two Chinese families

Frontiers in Endocrinology, 2023
IntroductionInfertility is a major disease affecting human life and health, among which male factors account for about half. Asthenoteratozoospermia accounts for the majority of male infertility.
Hui Yu, Hui Yu, Xiao Shi, Zhongmei Shao, Zhongmei Shao, Hao Geng, Hao Geng, Hao Geng, Senzhao Guo, Senzhao Guo, Senzhao Guo, Kuokuo Li, Kuokuo Li, Kuokuo Li, Meng Gu, Meng Gu, Meng Gu, Chuan Xu, Chuan Xu, Chuan Xu, Yang Gao, Yang Gao, Yang Gao, Qing Tan, Qing Tan, Zongliu Duan, Zongliu Duan, Zongliu Duan, Huan Wu, Huan Wu, Huan Wu, Rong Hua, Rong Hua, Rui Guo, Rui Guo, Zhaolian Wei, Zhaolian Wei, Zhaolian Wei, Ping Zhou, Ping Zhou, Ping Zhou, Yunxia Cao, Yunxia Cao, Yunxia Cao, Xiaojin He, Xiaojin He, Xiaojin He, Liang Li, Xiaoping Zhang, Mingrong Lv, Mingrong Lv, Mingrong Lv, Mingrong Lv   +52 more
doaj   +1 more source

Molecular Analysis of DPY19L2, PICK1 and SPATA16 in Italian Unrelated Globozoospermic Men

Life, 2021
This study aims to evaluate genetic contribution and sperm DNA fragmentation (SDF) in a cohort of 18 unrelated globozoospermic Italian men (Group G). Semen samples were assessed according to the WHO 2010 Laboratory Manual and compared with 31 fertile ...
Fabiana Faja, Francesco Pallotti, Francesco Cargnelutti, Giulia Senofonte, Tania Carlini, Andrea Lenzi, Francesco Lombardo, Donatella Paoli   +7 more
doaj   +1 more source

Semen abnormalities in patients with human papillomavirusassociated infertility detected by electron transmission microscopy

Вестник урологии, 2023
Introduction. Recent research have suggested a link between human papillomavirus (HPV) and declining male fertility.Objective. To study the pathomorphological changes in ejaculate of patients with human papillomavirus-associated infertility using ...
Kh. S. Ibishev, E. A. Sinelnik, G. A. Magomedov, M. B. Chibichyan, M. I. Kogan   +4 more
doaj   +1 more source

Differential Expression and Localization of EHBP1L1 during the First Wave of Rat Spermatogenesis Suggest Its Involvement in Acrosome Biogenesis

Biomedicines, 2022
The identification and characterization of new proteins involved in spermatogenesis is fundamental, considering that good-quality gametes are basic in ensuring proper reproduction.
Massimo Venditti, Sergio Minucci
doaj   +1 more source

Hypoosmotic Test Combined with Coomassie Blue Staining in Llama Sperm [PDF]

SPERMOVA, 2018
To stablish sperm fertilization capacity membrane integrity and functionality are important characteristics to determine. The objectives of the present study were: 1) to evaluate the functionality of the plasma membrane over time by the hypoosmotic test (
M,I, Carretero, C. Pigretti, M. Bertuzzi , F. Fumuso   +3 more
doaj   +1 more source