Results 111 to 120 of about 25,438 (286)

Children Born Using Ejaculated Sperm From Men With Klinefelter Syndrome. Is Sperm Production Associated With Testicular Volume?

Andrology, EarlyView.
ABSTRACT Background A large number of children have been born using testicular sperm from men with Klinefelter syndrome (KS), whereas reports of children conceived using ejaculated sperm are rare. Objective To review all published cases of children conceived using ejaculated sperm from men with KS, assess their health and karyotype, and evaluate ...
Jens Fedder, Freja Sørensen
wiley   +1 more source

Differential expression of c-kit in mouse undifferentiated and differentiating type A spermatogonia

, 1999
The proto-oncogene c-kit is encoded at the white-spotting locus and in the mouse mutations at this locus affect the precursor cells of melanocytes, hematopoietic cells, and germ cells.
van de Kant, H. J., de rooij, D. G., Schrans-Stassen, B. H., van Pelt, A. M.   +3 more
core   +1 more source

Exploration of Novel Markers in Tan Sheep Spermatogenesis

Animals
In livestock farming, the reproductive function and breeding performance of Tan sheep are crucial for enhancing farming efficiency. Despite advances in research on sheep germ cells, studies on the identification of markers for spermatogonia ...
Yuan Ma, Haoyan Jin, Nana Wang, Yaru Xie, Lingkai Zhang, Bei Cai   +5 more
doaj   +1 more source

Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis

Andrology, EarlyView.
ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley   +1 more source

Optimization of Conditions for Cryopreservation of Enriched Spermatogonial Stem Cells in Olive Flounder (Paralichthys olivaceus)

Cells
Spermatogonial stem cells (SSCs) are pivotal in surrogate broodstock technology. However, species-specific protocols for the efficient enrichment and long-term preservation of SSCs in olive flounder (Paralichthys olivaceus) are not yet fully established.
Ja Young Cho, A Young Jeon, Hyun Tae Kim, Jung-Ha Kang, Jae Hun Cheong, Jae Hoon Choi   +5 more
doaj   +1 more source

Cloning and Expression Analysis of a Giant Gourami Vasa-Like cDNA

Hayati Journal of Biosciences, 2011
Molecular marker is useful in the development of testicular cells transplantation for detecting donor-derived germ cells in the recipient gonad. In this study, a giant gourami (Osphronemus goramy) vasa-like gene (GgVLG) was cloned and characterized for ...
ALIMUDDIN, IRMA ANDRIYANI, MUHAMMAD ZAIRIN JUNIOR, HARTON ARFAH, ANNA OCTAVERA, ODANG CARMAN, GORO YOSHIZAKI   +6 more
doaj   +1 more source

The Impact of Common Medications on Male Fertility: An Updated Systematic Review

Andrology, EarlyView.
ABSTRACT Background Compared with those of cytotoxic treatments, the potential effects of common medications on the fertility of men trying to conceive currently or planning to conceive in the future are less well described. The use of common medications may modify the gonadotropic axis, spermatogenesis, and epididymal maturation or alter male ...
Lina Jebli, Salomé Gallissian, Roxanne Barèges, Félicia Fournier, Catherine Metzler‐Guillemain, Ségolène Prades, Fanny Magnan‐Sebag, Jeanne Perrin   +7 more
wiley   +1 more source

Anatomical and Histological Structures of the Male Reproductive System of Chalcophora mariana (Linnaeus, 1758) (Coleoptera: Buprestidae): Light and Scanning Electron Microscopy Study

Acta Zoologica, EarlyView.
ABSTRACT This study presents the first detailed morphological analysis of the male reproductive system of Chalcophora mariana (Linnaeus, 1758) using stereo microscopy, light microscopy, and scanning electron microscopy. The male reproductive system of C.
Hicret Arslan, Selami Candan
wiley   +1 more source

Anatomical and Histological Descriptions of the Male Reproductive System of the Alfalfa Weevil of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae) Using Light and Scanning Electron Microscopies

Acta Zoologica, EarlyView.
ABSTRACT Features of the reproductive organs, such as the number of testicular follicles, testis colour and the morphology of the glands, can be used as systematic characters. For this purpose, this paper was the first description of the male reproductive system anatomy and histology of Hypera postica (Gyllenhal, 1813) (Coleoptera: Curculionidae), a ...
Nurcan Özyurt Koçakoğlu, Selami Candan, Hicret Arslan, Mustafa Güllü   +3 more
wiley   +1 more source

Promotion of asthenozoospermia by C9orf72 through suppression of spermatogonia activity via fructose metabolism and mitophagy

Open Medicine
To investigate the involvement of C9orf72 in asthenozoospermia and its effects on spermatogonial energy metabolism and mitophagy.
Lu Hui, Xu Dongchuan, Zhao Liqiang, Ruan Hailing, Wang Anguo, Li Yejuan, Lu Weiying   +6 more
doaj   +1 more source