Results 61 to 70 of about 33,731 (224)
Long-Term Propagation of Porcine Undifferentiated Spermatogonia [PDF]
Stem Cells and Development, 2017 Spermatogonial stem cells (SSCs) provide the foundation for spermatogenesis and fertility throughout the adult life of a male. Genetic manipulations of SSCs combined with germ cell transplantation present a novel approach for gene therapy and production of genetically modified animals.
Zhang, Pengfei +6 more
openaire +3 more sources
Interdisciplinary Medicine, EarlyView.Organoids and organ‐on‐a‐chips are advancing reproductive system research. In the female reproductive system, applications include cancer organoid models, placental chips, and hormone simulation models. For the male reproductive system, research focuses on drug resistance mechanisms, co‐culture platforms, and infertility studies. These refined in vitro
Hongqi Zhang +6 more
wiley +1 more source
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.ABSTRACT Animals with seasonal reproductive cycles, as the Roe deer (Capreolus capreolus), have developed mechanisms to synchronize reproduction with the environmental cycle in order to optimize reproductive success through melatonin. Angiogenesis and oxidative stress are key processes in spermatogenesis, contributing to testicular remodeling and ...
Ilaria Troisio +7 more
wiley +1 more source
Stem Cell Reports, 2017 The introduction of megabase-sized large DNA fragments into the germline has been a difficult task. Although microcell-mediated chromosome transfer into mouse embryonic stem cells (ESCs) allows the production of transchromosomic mice, ESCs have unstable ...
Takashi Shinohara +12 more
doaj +1 more source
Epigenetic Regulation of TET1-SP1 During Spermatogonia Self-Renewal and Proliferation
Frontiers in Physiology, 2022 Spermatogonia are the source of spermatogenic waves. Abnormal spermatogonia can cause ab-normal spermatogenic waves, which manifest as spermatogenic disorders such as oligospermia, hypospermia, and azoospermia.
Lingling Liu +5 more
doaj +1 more source
Growth inhibition and morphologic changes of HeLa cells exposed to unsaturated fatty acid fraction from the liver of x-ray irradiated rabbits (OX) [PDF]
, 1962 Biological effect of the unsaturated fatty acid fraction from the X-ray irradiated rabbit liver (OX) on HeLa cells has been observed in vitro comparing with the effect displayed on the same strain cells by the unsaturated fatty acid fraction from the non-
Seno, Satimaru +2 more
core +1 more source
Regulatory mechanisms of reproduction in locusts and grasshoppers
New Plant Protection, EarlyView.Regulatory networks composed of numerous coding and noncoding genes play crucial roles in the reproduction of locusts and grasshoppers. This review integrates mechanistic advances in reproductive regulation, highlighting environmentally adaptive pathways and providing prospective targets for eco‐friendly pesticides.
Jing He, Jiliang Wang, Xinran Wang
wiley +1 more source
Journal of Developmental Biology, 2020 Testicular development starts in utero and maturation continues postnatally, requiring a cascade of gene activation and differentiation into different cell types, with each cell type having its own specific function.
Paige L. Snider +2 more
doaj +1 more source
Prmt7 Downregulation in Mouse Spermatogonia Functions through miR-877-3p/Col6a3
Life, 2022 Protein arginine methyltransferases 7 (Prmt7) is expressed in male germ cells, including primordial germ cells, gonocytes, and spermatogonia. Our previous study demonstrated that Prmt7 downregulation reduced the proliferation of GC-1 cells (a cell line ...
Hongmei Gao +6 more
doaj +1 more source
Macrophages in endocrine glands, with emphasis on pancreatic islets [PDF]
, 2016 We review here the macrophages found in endocrine tissues, placing emphasis on those residing in the islets of Langerhans of the pancreas. The islets represent the endocrine organ where macrophages have been examined in great detail and where our own ...
Unanue, Emil R
core +2 more sources