Results 71 to 80 of about 216,536 (392)

Norepinephrine Induces Sertoli Cell Ferroptosis via Receptors Desensitization Causing Stress‐Related Male Reproductive Dysfunction

Advanced Science, EarlyView.
Psychological stress activates the sympathetic–adrenal axis, elevating norepinephrine (NE) and suppressing reproductive hormones, thereby impairing male reproduction. Excess NE overactivates and desensitizes β‐adrenergic receptors (β‐ARs), triggering Sertoli cell ferroptosis and disrupting spermatogenesis.
Lingyu Zhang, Shanfeng Gao, Xiaofan Xiong, Xin Liu, Rufeng Li, Xia Wang, Lin Han, Xuan Xiao, Xiaofei Wang, Wen Li, Yongxia Chang, Yuefeng Du, Juan Yang   +12 more
wiley   +1 more source

Ultrastructural evidence for the activation of autophagy and analysis of the protective role of autophagy in goat spermatozoa under liquid storage

Frontiers in Veterinary Science
Liquid storage of semen is a widely used technology for promoting genetic improvement in goat breeding. The short shelf life of spermatozoa greatly limits the application of liquid storage, which urgently needs to explore the underlying regulatory ...
Tengfei Liu, Jincong Niu, Yuqi Huang, Hong Chen, Yongjie Wu, Yongping Xu   +5 more
doaj   +1 more source

Daya Hidup Spermatozoa Epididimis Kambing Peranakan Ettawa yang Dipreservasi dengan Pengencer Tris dan Bberbagai Konsentrasi Maltosa

Jurnal Sain Veteriner, 2017
Cauda epididymal spermatozoa could be used as an alternative source of gamete in the application of various reproductive technologies, since the spermatozoa is motile and has ability for fertilizing the oocyte.
Muhammad Rizal, Dwi Sulistiowati, Abrani Sulaiman, Herdis Herdis, Insun Sangadji   +4 more
doaj   +1 more source

Therapeutic Repair of Sperm Quality Decline Caused by Polytetrafluoroethylene

Advanced Science, EarlyView.
Exposure to PTFE (teflon), a commonly used microplastic in non‐stick cookware, significantly reduces sperm quality in both humans and mice. Specifically, PTFE induces the disruption of sperm cytoskeleton and F‐actin assembly through targeting SKAP2 in haploid spermatid.
Shiming Gan, Shumin Zhou, Jiaming Zhou, Guanghui Zhang, Jingshou Chen, Rui Liu, Kuan Sun, Sisi Li, Wenjing Xiong, Yujiao Wen, Jianzhong Sheng, Yu Zhang, Jingchao Ren, Youjiang Li, Hefeng Huang, Chen Zhang   +15 more
wiley   +1 more source

The Effect of Centrifugation on Semen Quality of Peranakan Ettawah Goat's Post Thawing

Jurnal Kedokteran Hewan, 2010
The aim of the research was to determine the optimum of centrifugation on the quality of Peranakan Ettawah goat's spermatozoa prepared for in vitro fertilization preparation.The research of material was frozen semen of Peranakan Ettawah goat produced by ...
Indiah Indiah, Sri Wahjuningsih
doaj   +1 more source

EFFECT OF HESPERETIN TREATMENT ON BLOOD GLUCOSE LEVEL, SPERMATOZOA QUALITY, AND SPERMATOZOA QUANTITY IN ALLOXAN-INDUCED DIABETIC MICE

Jurnal Kedokteran Hewan, 2021
Male infertility has occurred rapidly in the last few decades, primarily in developing countries. An antioxidant, hesperetin is a flavonoid that is found in abundance in orange peels.
Nerdy Nerdy, Linta Meliala, Bunga Rimta Barus, Puji Lestari, Selamat Ginting, Peny Ariani, Vriezka Mierza, Tedy Kurniawan Bakri   +7 more
doaj   +1 more source

Chemotactic Turning Behaviour of Tubularia Spermatozoa [PDF]

, 1970
1. The movements of Tubularia spermatozoa in the vicinity of micropipettes filled with extracts of female hydranths, which chemotactically attract the spermatozoa, have been recorded by multiple-flash photomicrography. 2.
Brokaw, C. J., Miller, R. L.
core  

Engineering Decavalent, Sperm‐Binding Laminin‐IgG Hybrid Antibodies for Potent Non‐Hormonal Contraception

Advanced Science, EarlyView.
This study investigates a highly multivalent mAb platform fusing Laminin‐511 heterotrimerization domains with Fabs and IgG1‐Fc as a non‐hormonal contraceptive. The most potent molecule ‘LamH10’, possessing 10 Fabs, rapidly achieved >99% reduction in progressively motile sperm at just 33µg per dose in sheep, making the laminin‐IgG hybrid platform the ...
Alison Schaefer, Keiichiro Kushiro, Bhawana Shrestha, Yong Zhu, Alysha Panjwani, Lauren Dawson, Haley Flowers, Kathleen L. Vincent, Samuel K. Lai   +8 more
wiley   +1 more source

EPIDIDYMAL SPERMATOZOA QUALITY OF ETAWA CROSSBREED GOAT IN TRIS EXTENDER SUPPLEMENTED WITH VARIOUS LACTOSE CONCENTRATIONS

Jurnal Kedokteran Hewan, 2017
This research was conducted to investigate the effect of various concentrations of lactose supplementation in Tris extender for maintaining the quality of Etawa crossbreed goat epididymal spermatozoa stored at 3-5° C.
Muhammad Riyadhi, Agus Setiawan, Herdis Herdis, Muhammad Rizal   +3 more
doaj   +1 more source

Activation of Ciona sperm motility: phosphorylation of dynein polypeptides and effects of a tyrosine kinase inhibitor [PDF]

, 1991
A high molecular mass dynein ATPase polypeptide and a 18–20 kDa dynein light chain of Ciona sperm flagella are phosphorylated during in vivo activation of motility or in vitro activation of motility by incubation with cyclic AMP.
Brokaw, Charles J., Dey, Chinmoy S.
core