Results 211 to 220 of about 226,104 (262)
Some of the next articles are maybe not open access.
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1995
Abstract Whether germ cells succeed in making eggs or sperm depends both on their genetic constitution and on the tissue environment in which they develop. The decision as to whether it is oogenesis or spermatogenesis on which they initially embark depends only on their environment, however, and not at all on their own chromosomes ...
openaire +2 more sources
Abstract Whether germ cells succeed in making eggs or sperm depends both on their genetic constitution and on the tissue environment in which they develop. The decision as to whether it is oogenesis or spermatogenesis on which they initially embark depends only on their environment, however, and not at all on their own chromosomes ...
openaire +2 more sources
Science China Life Sciences, 2010
Fish, like many other animals, have two major cell lineages, namely the germline and soma. The germ-soma separation is one of the earliest events of embryonic development. Germ cells can be specifically labeled and isolated for culture and transplantation, providing tools for reproduction of endangered species in close relatives, such as surrogate ...
Xu, H.Y. +3 more
openaire +2 more sources
Fish, like many other animals, have two major cell lineages, namely the germline and soma. The germ-soma separation is one of the earliest events of embryonic development. Germ cells can be specifically labeled and isolated for culture and transplantation, providing tools for reproduction of endangered species in close relatives, such as surrogate ...
Xu, H.Y. +3 more
openaire +2 more sources
Seminars in Reproductive Medicine, 2005
Transplantation of male germ line stem cells from a fertile donor to the testis of an infertile recipient restores donor-derived spermatogenesis in the recipient testis. The resulting sperm pass the donor genotype to the offspring of the recipient. Germ cell transplantation helped to elucidate the biology of male germ line stem cells and their niche in
openaire +2 more sources
Transplantation of male germ line stem cells from a fertile donor to the testis of an infertile recipient restores donor-derived spermatogenesis in the recipient testis. The resulting sperm pass the donor genotype to the offspring of the recipient. Germ cell transplantation helped to elucidate the biology of male germ line stem cells and their niche in
openaire +2 more sources
Hematology/Oncology Clinics of North America, 1992
The development of modern surgical staging and effective chemotherapy regimens has markedly improved outcome of treatment of ovarian germ cell tumors. Almost all patients with completely resected tumors will survive their disease. Those with tumors other than dysgerminoma should all receive adjuvant chemotherapy. Patients with stage IA dysgerminoma can
openaire +4 more sources
The development of modern surgical staging and effective chemotherapy regimens has markedly improved outcome of treatment of ovarian germ cell tumors. Almost all patients with completely resected tumors will survive their disease. Those with tumors other than dysgerminoma should all receive adjuvant chemotherapy. Patients with stage IA dysgerminoma can
openaire +4 more sources
2006
Primordial germ cells, which carry the responsibility for perpetuation of the species, are set aside from their somatic neighbors very early in mammalian embryonic development. The founder population of germ cells is rare and difficult to identify and isolate in quantities suitable for molecular and biochemical analysis, thereby highlighting the ...
Niels, Geijsen, George Q, Daley
openaire +2 more sources
Primordial germ cells, which carry the responsibility for perpetuation of the species, are set aside from their somatic neighbors very early in mammalian embryonic development. The founder population of germ cells is rare and difficult to identify and isolate in quantities suitable for molecular and biochemical analysis, thereby highlighting the ...
Niels, Geijsen, George Q, Daley
openaire +2 more sources
Molecular and Cellular Endocrinology, 2002
Transplantation of germ cells leads to restoration of spermatogenesis from spermatogonial stem cells. The original description of germ cell transplantation in 1994 has led to new approaches to explore many basic aspects of spermatogonial physiology.
openaire +2 more sources
Transplantation of germ cells leads to restoration of spermatogenesis from spermatogonial stem cells. The original description of germ cell transplantation in 1994 has led to new approaches to explore many basic aspects of spermatogonial physiology.
openaire +2 more sources
Surgical Clinics of North America, 2006
The category of germ cell tumors includes a broad array of histologic subtypes ranging from the benign, mature teratoma to the primitive, aggressive embryonal carcinoma (Box 1). These tumors share their origin in a primordial germ cell with multipotent capacity for differentiation along a variety of pathways.
openaire +2 more sources
The category of germ cell tumors includes a broad array of histologic subtypes ranging from the benign, mature teratoma to the primitive, aggressive embryonal carcinoma (Box 1). These tumors share their origin in a primordial germ cell with multipotent capacity for differentiation along a variety of pathways.
openaire +2 more sources
Embryonic Germ Cells: When Germ Cells Become Stem Cells
Seminars in Reproductive Medicine, 2006Embryonic germ cells (EGCs) are pluripotent stem cells derived from primordial germ cells (PGCs). PGCs are progenitors of adult gametes, which diverge from the somatic lineage between late embryonic to early fetal development. First derived in the mouse, EGCs have also been derived from human, chicken, and pig.
Candace L, Kerr +3 more
openaire +2 more sources
Annals of Internal Medicine, 1981
Excerpt To the editor: The letters by Page (1) and Newcomer (2) in the May issue and the comments by other physicians in response to our article on unrecognized germ cell cancers (3) warrant a repl...
openaire +2 more sources
Excerpt To the editor: The letters by Page (1) and Newcomer (2) in the May issue and the comments by other physicians in response to our article on unrecognized germ cell cancers (3) warrant a repl...
openaire +2 more sources
2019
Germ cells undergo epigenome reprogramming for proper development of the next generation. The achievement of in vitro germ cell derivation from human and mouse pluripotent stem cells and further differentiation in a plane culture and in aggregation with gonadal somatic cells offers unprecedented opportunities for investigation of the germ cell ...
Kazuki, Kurimoto, Mitinori, Saitou
openaire +2 more sources
Germ cells undergo epigenome reprogramming for proper development of the next generation. The achievement of in vitro germ cell derivation from human and mouse pluripotent stem cells and further differentiation in a plane culture and in aggregation with gonadal somatic cells offers unprecedented opportunities for investigation of the germ cell ...
Kazuki, Kurimoto, Mitinori, Saitou
openaire +2 more sources