structure-function relationshipFertilisation is a unique event in which the morphologically disparate gametes recognise, bind and fuse with each other. This event follows a highly regulated schedule of biochemical interactions, in which molecules are involved that mediate cell adhesion, signal transduction ...
In this review, we consider sperm competition and monogamy as two ends of the selective spectrum, and discuss its effect on sperm structure and function. We address the issue of a lack of sperm competition by comparing sperm traits of essentially monogamous species—their largely degenerative sperm...
Formation and function of sperm tail structures in association with sperm motility defects. Biol Reprod 2017;97:522-536... MS Lehti,A Sironen - 《Biology of Reproduction》 被引量: 6发表: 2017年 Fine structure and motility of spermatozoa and composition of the seminal plasma in the perch The...
Nat. Cell Biol. 6, 555–562 (2004). Article CAS PubMed Google Scholar Zickler, D. & Kleckner, N. Meiotic chromosomes: integrating structure and function. Annu. Rev. Genet. 33, 603–754 (1999). Article CAS PubMed Google Scholar Wang, S. et al. Inefficient crossover maturation ...
parameters can provide a comprehensive understanding of the patient’s semen status, sperm motility, sperm morphology, defect degree of genetic material in sperm head nucleus, and accessory gonadal secretion function, which has important guiding significance for the diagnosis and treatment of infertility....
The identification of human sperm hyperactivated motility has potential importance in sperm function tests, as well as in quality control assays and in rep... ST Mortimer - 《Human Reproduction Update》 被引量: 611发表: 1997年 The sperm chromatin structure assay as a diagnostic tool in the hum...
Long-Term Exposure of Rats to a 2.45 GHz Electromagnetic Field: Effects on Reproductive Function field radiation on the sperm count, morphology, histological structure of testes, and on hormonal level of rats exposed to microwave radiation. Thirty... KH Moon,HJ Shin,H. S. Ahn,... - Springe...
The male pronucleus, which rotates 180° and moves towards the egg nucleus, initially is accompanied by two structures (centrioles) that function in cell division. After the male and female pronuclei have come into contact, the spermatozoal centrioles give rise to the first cleavage spindle,...
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One suggestion is that sperm cells are so complex in form and function that their manufacture, free of flaw, may be difficult. In this view, the non-functional sperm are defective products that have escaped quality control18. In contrast, we suggest that abnormal sperm cells are actually key...