Results 21 to 30 of about 132,648 (346)
The pairwise hydrodynamic interactions of synchronized spermatozoa [PDF]
Phys. Rev. Fluids 4, 093101 (2019), 2019 The journey of mammalian spermatozoa in nature is well-known to be reliant on their individual motility. Often swimming in crowded microenvironments, the progress of any single swimmer is likely dependent on their interactions with other nearby swimmers.
arxiv +1 more source
Andrologia, Volume 54, Issue 11, December 2022., 2022 Abstract Tobacco's genotoxic components can cause a wide range of gene defects in spermatozoa such as single‐ or double‐strand DNA breaks, cross‐links, DNA‐adducts, higher frequencies of aneuploidy and chromosomal abnormalities. The aim in this study was to determine the correlation between sperm quality determined by standard parameters, sperm DNA ...
Houda Amor +4 more
wiley +1 more source
Proteasomes in human spermatozoa [PDF]
International Journal of Andrology, 2000 In the present study we describe the localization of proteasomes in human spermatozoa by means of immunolabelling with different monoclonal and polyclonal antibodies detected by confocal microscopy. Western blotting confirmed the specificity of the antibodies and has shown that proteasomes are present in spermatozoa and in seminal fluid. In spermatozoa
Wojcik, C. +4 more
openaire +5 more sources
Chemotaxis of Arbacia punctulata spermatozoa to resact, a peptide from the egg jelly layer [PDF]
, 1985 Resact, a peptide of known sequence isolated from the jelly layer of Arbacia punctulata eggs, is a potent chemoattractant for A. punctulata spermatozoa. The chemotactic response is concentration dependent, is abolished by pretreatment of the spermatozoa ...
Brokaw, Charles J. +3 more
core +3 more sources
Andrologia, Volume 54, Issue 11, December 2022., 2022 Abstract Genitourinary anomalies constitute a large proportion of congenital malformations. However seminal tract anomalies, particularly ejaculatory duct (ED) anomalies are very rare and little information exists on the topic. We are reporting a very rare case of bilateral ectopic EDs opening in the bladder trigone in a 33‐year‐old gentleman ...
Ahmed Albakr +6 more
wiley +1 more source
Andrologia, Volume 54, Issue 11, December 2022., 2022 Abstract Varicocele (VC) is a common urogenital disease that leads to a high risk of testicular pain or male infertility. The purpose of this research was to explore the molecular mechanism of the Gui Zhi Fu Ling Wan (GFW) in the treatment of VC. The main active ingredients and targets information of GFW were screened by Traditional Chinese Medicine ...
Ruipeng Wang, Xiaoye Qiao, Xiaobin Wang
wiley +1 more source
Understanding and treating ejaculatory dysfunction in men with diabetes mellitus
Andrology, Volume 11, Issue 2, Page 379-398, February 2023., 2023 Abstract Diabetes mellitus is a rapidly rising metabolic disorder with important systemic complications. Global figures have demonstrated the prevalence of diabetes mellitus has almost quadrupled from 108 million in 1980 to 422 million in 2014, with a current prevalence of over 525 million.
Ankit Desai +4 more
wiley +1 more source
Hydrodynamics of the double-wave structure of insect spermatozoa flagella [PDF]
J. R. Soc. Interface 7 August 2012 vol. 9 no. 73 1908-1924, 2012 In addition to conventional planar and helical flagellar waves, insect sperm flagella have also been observed to display a double-wave structure characterized by the presence of two superimposed helical waves. In this paper, we present a hydrodynamic investigation of the locomotion of insect spermatozoa exhibiting the double-wave structure, idealized ...
arxiv +1 more source
Perceived stress and semen quality
Andrology, Volume 11, Issue 1, Page 45-53, January 2023., 2023 Abstract Background Psychological stress is prevalent among reproductive‐aged men. Assessment of semen quality for epidemiological studies is challenging as data collection is expensive and cumbersome, and studies evaluating the effect of perceived stress on semen quality are inconsistent.
Katrine H. Lund +13 more
wiley +1 more source
Molecular Biology of Spermatozoa [PDF]
International Journal of Molecular Sciences, 2020 The spermatozoon is a very special cell; it is generated in the male reproductive tract and has to travel to the female reproductive tract, of another individual, to fertilize an egg [...]
openaire +3 more sources