aHello,I\'m Eva form smart company,I will all business conact with you through this email from now on. 你好, I \ ‘m Eva形式聪明的公司,我意志所有企业conact与您通过这电子邮件从现在起。[translate] aSupports Sperm Structure and Function 支持精液结构和作用[translate]...
Fine structural studies have been carried out on Leydig cells both in humans (6,7) and Stallions (8), all of them mainly dealing with functional parameters, and on human Sertoli cells (9). Leydig cells appear increased both in number and in volume, in ageing stallions, decreased in humans...
Siva-Jothy MT (1987) The structure and function of the female sperm- storage organs in libellulid dragonflies. J Insect Physiol 33: 559- 568Siva-Jothy, M. T. (1987a). The structure and function of the female sperm-storage organs in libellulid dragonflies. J. Insect Physiol. 33: 559-...
Secretory proteins of the male genital tract modulate sperm function during sperm passage through the male and female genital tract. They contribute to the post-testicular maturation process, to the establishment of the oviductal sperm reservoir and sperm capacitation and are involved in the complex ...
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...
et al. Cohesin SMC1 beta is required for meiotic chromosome dynamics, sister chromatid cohesion and DNA recombination. 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...
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...
Slow freezing is the most commonly used technique for the cryopreservation of spermatozoa in clinical practice.However,it has been shown to have a negative impact on sperm function and structure.Vitrification as a successful alternative method has been proved to have better protective effects on human...
The auxiliary subunits CATSPERβ, γ, δ and ε—each of which contains a single transmembrane segment and a large extracellular domain—constitute a pavilion-like structure that stabilizes the entire complex through interactions with CATSPER4, 1, 3 and 2, respectively. Our EM map reveals ...
Sperm competition is the norm in the animal kingdom and in many taxa, such as amphibians, snakes, passerine birds and mammals [1–3], sperm structure and function can be correlated with the level of sperm competition [3–7]. Gomendio and Roldan [6] found that in promiscuous species of ...