Results 131 to 140 of about 61,716 (249)
Spermatogenesis and sperm structure in the black-striped pipefish Syngnathus abaster (Teleostei, Syngnathidae) = Spermatogenesi e struttura degli spermatozoi in Syngnathus abaster (Teleostei, Synghathidae) [PDF]
, 2010 The gonads of adult males of the black-striped pipejish Syngnathus abaster were observed during the reproductive season to describe mature sperm both quantitativel/y and qualitatively.
Addis, Alberto +3 more
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Cytological and Pathological Characterization of Canine Neoplasm in and Around Bishoftu, Ethiopia
Veterinary Medicine and Science, Volume 12, Issue 3, May 2026.This study characterizes dog tumours cytologically and histopathologically in and around Bishoftu town. Mammary gland adenocarcinoma, papillary mammary adenocarcinoma, carcinoma–mixed type, Sertoli cell tumour, atypical anal sac adenocarcinoma, fibrothecoma, cutaneous mast cell tumour and transmissible venereal tumour were the tumours identified and ...
Mesfin Mathewos +2 more
wiley +1 more source
CellsDue to the increasing trend of delayed childbirth, the age-related decline in male reproductive function has become a widely recognized issue. Sertoli cells (SCs) play a vital role in creating the necessary microenvironment for spermatogenesis in the ...
Ziyan Xiao +11 more
doaj +1 more source
Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders
Andrology, Volume 14, Issue 4, Page 1002-1016, May 2026.Abstract The hypothalamic–pituitary–gonadal axis is regulated by the gonadotropin‐releasing hormone pulse generator in the hypothalamus. This is comprised of neurons that secrete kisspeptin in a pulsatile manner to stimulate the release of GnRH, and, in turn, downstream gonadotropins from the pituitary gland, and subsequently sex steroids and ...
Aureliane C. S. Pierret +5 more
wiley +1 more source
, 2012 published_or_final_version ; Biological Sciences ; Doctoral ; Doctor of ...
openaire +2 more sources
Luteinizing hormone receptor knockout mouse: What has it taught us?
Andrology, Volume 14, Issue 4, Page 1017-1028, May 2026.Abstract Luteinizing hormone (LH), along with its agonist choriongonadotropin (hCG) in humans, is the key hormone responsible for the tropic regulation of the gonadal function. LH and hCG act through their cognate receptor, the luteinizing hormone/choriongonadotropin receptor (LHCGR; more appropriately LHR in rodents lacking CG), located in the testis ...
Ilpo T. Huhtaniemi
wiley +1 more source
Pharmacogenetics of follicle‐stimulating hormone action in the male
Andrology, Volume 14, Issue 4, Page 1064-1072, May 2026.Abstract Male factor infertility (MFI) is involved in half of the cases of couple infertility. The follicle‐stimulating hormone (FSH) therapy is considered efficient to improve semen parameters and pregnancy rate in patients with idiopathic MFI, following the lesson learned from hypogonadotropic hypogonadism.
Andrea Graziani +7 more
wiley +1 more source
Effects on the reproductive system in domestic dowl (Gallus domesticus) after embryonic exposure to estrogenic substances [PDF]
, 2007 Environmental pollutants with estrogenic activity have a potential to disrupt oestrogen-dependent developmental processes. Thus, the aim of this thesis was to investigated how embryonic exposure to the estrogenic pollutants EE2 (17 alpha ...
Hermansson, Alexandra
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Adult Pure Yolk Sac Tumor of The Testis. [PDF]
, 2012 Adult pure yolk sac tumor (YST) is extremely rare. In childhood pure yolk sac tumors are most frequently seen, whereas component of mixed germ cell testicular tumors observed in adults.
Jagtap, SV, Kshirsagar, AY, Nikumbh, DB
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Sertoli Cells - Methods and Protocols
European Journal of Histochemistry, 2019 The mammalian somatic cell providing the physiological milieu to germ cells growth and differentiation is the Sertoli cell, named after the Italian physiologist Enrico Sertoli. Sertoli described for the first time this functionally multitasking cell in 1865 (when he was 23 years-old!) in human testicular tissues while ending up his medicine studies at ...
openaire +4 more sources