Results 31 to 40 of about 143,699 (111)

Characterization of eight novel proteins with male germ cell-specific expression in mouse

Reproductive Biology and Endocrinology, 2008
Background Spermatogenesis and fertilization are highly unique processes. Discovery and characterization of germ cell-specific genes are important for the understanding of these reproductive processes.
Eddy Edward M, Kim Do, Park Inju, Choi Eunyoung, Han Cecil, Woo Jong-Min, Baek Namhoe, Cho Chunghee   +7 more
doaj   +1 more source

Micro-Raman Analysis of Sperm Cells on Glass Slide: Potential Label-Free Assessment of Sperm DNA toward Clinical Applications

Biosensors, 2022
Routine assessment of sperm DNA integrity involves the time-consuming and complex process of staining sperm chromatin. Here, we report a Raman spectroscopy method combined with extended multiplicative signal correction (EMSC) for the extraction of ...
Shengrong Du, Qun Zhang, Haohao Guan, Guannan Chen, Sisi Wang, Yan Sun, Yuling Li, Rong Chen, Youwu He, Zufang Huang   +9 more
doaj   +1 more source

The male germ unit association is independently regulated of GUM in Arabidopsis thaliana

Plant Direct
Cytoplasmic projections (CPs) formed by the generative and sperm cells link the male gametes with the vegetative cell (VC) nucleus, which are required to build the male germ unit (MGU) assemblage in the angiosperm pollen grain.
Abdur Rauf, Anbang Wang, Yujia Li, Zhihao Lian, Shouxing Wei, Kashmala Jabbar, Muhammad Wisal, Ikramullah Khan, Muhammad Khalid, Jingyang Li   +9 more
doaj   +1 more source

Behavior of Male Gamete Fusogen GCS1/HAP2 and the Regulation in Arabidopsis Double Fertilization

Biomolecules, 2023
In the sexual reproduction of flowering plants, two independent fertilization events occur almost simultaneously: two identical sperm cells fuse with either the egg cell or the central cell, resulting in embryo and endosperm development to produce a seed.
Yuka Shiba, Taro Takahashi, Yukino Ohashi, Minako Ueda, Amane Mimuro, Jin Sugimoto, Yuka Noguchi, Tomoko Igawa   +7 more
doaj   +1 more source

Relation of the male gametes with embryo sec cells. The hypothesis of double fertilization

Acta Societatis Botanicorum Poloniae, 2014
The sperms one after another get out of synergids. The front sperm gets the first into the egg cell attraction zone and then the sperm comes into contact with egg membrane.
N. S. Belayeva
doaj   +1 more source

AN AUTOMATIC SYSTEM FOR CALCULATING BASIC SEMEN PARAMETERS

TASK Quarterly, 2004
Algorithms for examination of the density and selected parameters of movement of sperm cells have been elaborated and implemented. The conducted research is a part of work on a computer system for semen analysis. The system will allow for an increase in
ŁUKASZ WITKOWSKI
doaj  

Beyond Testis Size: Links between Spermatogenesis and Sperm Traits in a Seasonal Breeding Mammal.

PLoS ONE, 2015
Spermatogenesis is a costly process that is expected to be under selection to maximise sperm quantity and quality. Testis size is often regarded as a proxy measure of sperm investment, implicitly overlooking the quantitative assessment of spermatogenesis.
Eliana Pintus, José Luis Ros-Santaella, José Julián Garde   +2 more
doaj   +1 more source

Mast Cells in Peritoneal Fluid From Women With Endometriosis and Their Possible Role in Modulating Sperm Function

Frontiers in Physiology, 2020
Endometriosis is a local pelvic inflammatory process, frequently associated with infertility, with altered function of immune-related cells in the peritoneal environment.
Violetta Borelli, Monica Martinelli, Stefania Luppi, Francesca Vita, Federico Romano, Francesco Fanfani, Elisa Trevisan, Fulvio Celsi, Giuliano Zabucchi, Fabrizio Zanconati, Cristina Bottin, Giuseppe Ricci, Giuseppe Ricci   +12 more
doaj   +1 more source

Ferroptosis emerges as the predominant form of regulated cell death in goat sperm cryopreservation

Journal of Animal Science and Biotechnology
Background Freezing-induced sperm damage, often associated with oxidative stress, can result in regulated cell death. Given that oxidative stress can trigger various forms of regulated cell death, the prevailing form during sperm cryopreservation remains
Erhan Hai, Boyuan Li, Yukun Song, Jian Zhang, Jiaxin Zhang   +4 more
doaj   +1 more source

Sperm freezing damage: the role of regulated cell death

Cell Death Discovery
Substantial progress in research on sperm cryopreservation has occurred since the twentieth century, especially focusing on improving sperm freezing procedures and optimizing semen extenders.
Erhan Hai, Boyuan Li, Jian Zhang, Jiaxin Zhang   +3 more
doaj   +1 more source