Results 91 to 100 of about 66,364 (295)

The Influence of Kebar Grass Infuse to Mice (Mus musculus) Spermatogenesis

Jurnal Sain Veteriner, 2014
This study was aim to examine the effect of grass infusion kebar (Biophytum petersianum) to increase the activity of spermatogenesis in male mice. This research was conducted at the Laboratory of Botany University Discourse Kristen Duta Yogyakarta ...
Paula Nency Lefaan
doaj   +1 more source

Reproductive Traits of Zoo‐Bred and Wild‐Bred Eastern Massasaugas (Sistrurus catenatus) at Species Survival Plan® Conservation Breeding Centres and Other Facilities

Zoo Biology, EarlyView.
Based on 94 Massasauga litters born in human care, mean litter size and number of live young per litter were higher in wild‐bred than in zoo‐bred litters. Wild‐bred litters more often contained live young than did zoo‐bred litters. In zoo‐bred litters, dam mass was positively associated with above‐average reproductive output.
Jonathan D. Choquette, Trevor E. Pitcher, Anne Yagi, Corentin Fournier, Rick Vos, Jacqueline D. Litzgus   +5 more
wiley   +1 more source

The Formation of the Sexual Nuclei in Lilium Martagon: II. Spermatogenesis [PDF]

, 1897
Ethel Sargant
openalex   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

Spermatogenesis in Mnium affine, var. ciliaris (Grev.), C.M. [PDF]

, 1915
William L. Woodburn
openalex   +1 more source

A non‐hormonal reversible contraceptive targeting GSK3α, a protein kinase, essential for epididymal sperm maturation

Andrology, EarlyView.
Abstract Background and objectives Epididymal transit renders key competence to mammalian spermatozoa for fertilizing eggs. Generally, the two paralogs of glycogen synthase kinase 3, GSK3α and GSK3β, functionally overlap except in testis and sperm. We showed that GSK3α is essential for epididymal sperm maturation and fertilization.
Mustfa Kabi, Aditi Khamamkar, Kwaku Kyei‐Baffour, Michel Weïwer, Srinivasan Vijayaraghavan, Souvik Dey   +5 more
wiley   +1 more source

The Spermatogenesis of Batrachoseps. Polymorphous spermatogonia, auxocytes, and spermatocytes [PDF]

, 1900
Gustav Eisen
openalex   +1 more source

Kisspeptin as a test of hypothalamic dysfunction in pubertal and reproductive disorders

Andrology, EarlyView.
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, Aaran H. Patel, Elisabeth Daniels, Alexander N. Comninos, Waljit S. Dhillo, Ali Abbara   +5 more
wiley   +1 more source

The Pulsatile Gonadorelin Pump Induces Earlier Spermatogenesis Than Cyclical Gonadotropin Therapy in Congenital Hypogonadotropic Hypogonadism Men

American Journal of Men's Health, 2019
The objective of this study was to compare the effect of pulsatile gonadorelin pump (PGP) and cyclical gonadotropin (human chorionic gonadotropin [HCG]/human menopausal gonadotropin [HMG]) therapy (CGT) on spermatogenesis in congenital hypogonadotropic ...
Luyao Zhang, Ke Cai, Yu Wang, Wen Ji, Zhen Cheng, Guanming Chen, Zhihong Liao   +6 more
doaj   +1 more source

Comparative studies in crustacean spermatogenesis [PDF]

, 1909
M. Louise Nichols
openalex   +1 more source