Results 81 to 90 of about 20,184 (239)
Spermatids as gametes: indications and limitations [PDF]
Human Reproduction, 1998 The feasibility of achieving viable embryos, developing to term after transfer into the uterus, by fertilizing oocytes with spermatids has been demonstrated both in animal studies and in preliminary human clinical trials. Here we review the current clinical indications of spermatid conception and discuss the predictable success rates associated with ...
J, Tesarik +3 more
openaire +2 more sources
The role of iron in normal and impaired testicular function
Andrology, EarlyView.Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer +2 more
wiley +1 more source
Varicocele and testicular function
Asian Journal of Andrology, 2015 Testicular varicocele, a dilation of the veins of the pampiniform plexus thought to increase testicular temperature via venous congestion, is commonly associated with male infertility.
Alexander W Pastuszak, Run Wang
doaj +1 more source
Rai14 (retinoic acid induced protein 14) is involved in regulating f-actin dynamics at the ectoplasmic specialization in the rat testis*. [PDF]
PLoS ONE, 2013 Rai14 (retinoic acid induced protein 14) is an actin binding protein first identified in the liver, highly expressed in the placenta, the testis, and the eye.
Xiaojing Qian +2 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu +2 more
wiley +1 more source
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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Microtubule Inner Protein CFAP77 Contributes to Sperm Motility and Male Fertility in Mice
Andrology, EarlyView.ABSTRACT Background Sperm motility is essential for male fertility, and its regulation is dependent on the structural integrity of the axoneme. The axoneme consists of a conserved “9+2” microtubule arrangement and is supported by microtubule inner proteins. However, the functional significance of many microtubule inner proteins remains unclear.
Haoting Wang +4 more
wiley +1 more source
Jumlah Sel Spermiogenesis Tikus Putih Yang Diberi Tanin Daun Beluntas (Pluchea Indica) Sebagai Sumber Belajar [PDF]
, 2013 Tanaman obat sebagai antifertilitas belum banyak digunakan, maka perlu alternatif obat antifertilitas terutama pada pria, yaitu beluntas (Pluchea indica).
Susetyarini, R. E. (Rr)
core
Biotropika: Journal of Tropical Biology, 2017 Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak ethanol kemangi (Ocimum canum Sims.) terhadap struktur histologi testis mencit jantan (Mus musculus).
Ivakhul Anzila +3 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background Advanced paternal age is associated with reduced male fertility and testicular dysfunction. Among the molecular regulators involved in aging, SIRT1, a NAD+‐dependent deacetylase, plays a pivotal role in maintaining oxidative balance and cellular homeostasis.
María Iniesta‐Cuerda +7 more
wiley +1 more source