Results 71 to 80 of about 5,089 (171)

Development of antral follicles after xenografting of isolated small human preantral follicles

Reproductive BioMedicine Online, 2008
Small human pre-antral follicles can be enzymatically isolated from the surrounding stroma, and are able to survive after 7 days of xenografting. The aim of the present study was to assess the developmental capacity of enzymatically isolated human follicles after long-term xenografting to severe combined immunodeficient (SCID) mice.
Marie-Madeleine, Dolmans, Wu Yuan, Yuan, Alessandra, Camboni, Antoine, Torre, Anne, Van Langendonckt, Belen, Martinez-Madrid, Jacques, Donnez   +6 more
openaire   +2 more sources

Canine preantral follicles cultured with various concentrations of follicle-stimulating hormone (FSH)

Theriogenology, 2010
The objective was to evaluate the effects of various concentrations of exogenous FSH during in vitro culture of isolated canine preantral follicles. Preantral secondary follicles (>200 microm) were isolated by microdissection and cultured for 18 d in supplemented alpha-Minimum Essential Medium (alpha-MEM).
Michelle Karen Brasil, Serafim, Valdevane Rocha, Araújo, Gerlane Modesto, Silva, Ana Beatriz Graça, Duarte, Anderson Pinto, Almeida, Roberta Nogueira, Chaves, Cláudio Cabral, Campello, Cláudio Afonso Pinho, Lopes, José Ricardo, de Figueiredo, Lúcia Daniel Machado, da Silva   +9 more
openaire   +2 more sources

Morphological characterization and isolation of preantral follicles in Chianina cows reared in Tuscany

Italian Journal of Animal Science, 2011
In the last decade some isolation procedures were developed to obtain an increase in the number of progeny born per dam from a high number of oocytes manipulated in vitro (Telfer, 1996).
A. Giorgetti, A. Martini, B. Gaspardo, C.A. Amorim, D. Rondina   +4 more
doaj   +1 more source

The art of oocyte meiotic arrest regulation

Reproductive Biology and Endocrinology, 2019
A central dogma of mammalian reproductive biology is that the size of the primordial follicle pool represents reproductive capacity in females. The assembly of the primordial follicle starts after the primordial germ cells (PGCs)-derived oocyte releases ...
Bo Pan, Julang Li
doaj   +1 more source

Histological assessment for investigation of dose-dependent ovarian toxicity of cyclophosphamide in the rat

Heliyon
Background: Cyclophosphamide (CPA) have significant effects on ovarian follicles which lead to ovarian toxicity and impair the normal female reproductive function.
Narges Elahi, Mohammad Ebrahim Astaneh, Jafar Ai, Zohreh Makoolati   +3 more
doaj   +1 more source

The Invasion and Reproductive Toxicity of QDs-Transferrin Bioconjugates on Preantral Follicle in vitro

Theranostics, 2012
The toxicity of QD has been extensively studied over the past decade. However, the potential toxicity of QDs impedes its use for clinical research. In this work, we established a preantral follicle in vitro culture system to investigate the effects of QD-
Gaixia Xu, Suxia Lin, Wing-Cheung Law, Indrajit Roy, Xiaotan Lin, Shujiang Mei, Hanwu Ma, Siping Chen, Hanben Niu, Xiaomei Wang
doaj  

Vitamin D3 Regulates Follicular Development and Intrafollicular Vitamin D Biosynthesis and Signaling in the Primate Ovary

Frontiers in Physiology, 2018
There is an increasing recognition that vitamin D plays important roles in female reproduction. Recent studies demonstrated that 1α,25-dihydroxyvitamin D3 (VD3), the biologically active form of vitamin D, improved ovarian follicle survival and growth in ...
Jing Xu, Jing Xu, Maralee S. Lawson, Fuhua Xu, Yongrui Du, Yongrui Du, Olena Y. Tkachenko, Cecily V. Bishop, Lucas Pejovic-Nezhat, David B. Seifer, Jon D. Hennebold, Jon D. Hennebold   +11 more
doaj   +1 more source

ХАРАКТЕРИСТИКА НА ПРЕАНТРАЛНИ ФОЛИКУЛИ НА ЗАЙЦИ ОТ ПОРОДАТА НОВОЗЕЛАНДСКА БЯЛА

Животновъдни науки, 2013
The aim of this study was to describe the preantral follicles in the ovaries of rabbits from the New Zealand breed. For this purpose eight adult female rabbits were stay under unified rearing and feeding conditions during the 45 days. Their ovaries were
ДЕСИСЛАВА АБАДЖИЕВА, СВЕТЛАНА ГРИГОРОВА, ДИМИТРИНА КАЧЕВА, ЕЛЕНА КИСТАНОВА   +3 more
doaj  

Comparison of the developmental potential of 2-week-old preantral follicles derived from vitrified ovarian tissue slices, vitrified whole ovaries and vitrified/transplanted newborn mouse ovaries using the metal surface method

BMC Biotechnology, 2008
Background Cryopreservation of preantral follicles or ovarian tissues would enable the storage of large numbers of primordial follicles or preantral follicles and preserves the structural integrity of somatic and reproductive cells. In the present study,
Hsu Kung-Hao, Gong Kun-Bing, Kuo Tsung-Cheng, Yen Jui-Mei, Lin Ta-Chin, Hsu Teng-Tsao   +5 more
doaj   +1 more source

Insulin-like growth factor 2 is produced by antral follicles and promotes preantral follicle development in macaques†. [PDF]

Biol Reprod, 2021
Tkachenko OY, Wolf S, Lawson MS, Ting AY, Rodrigues JK, Xu F, Bishop CV, Stouffer RL, Xu J.   +8 more
europepmc   +1 more source