Results 11 to 20 of about 8,605 (217)

Light microscopical and ultrastructural characterization of goat preantral follicles [PDF]

Small Ruminant Research, 2001
Goat ovarian preantral follicles were morphologically and ultrastructurally described in this work. Primordial follicles are oocytes surrounded by one layer of squamous or squamouscuboidal granulosa cells; primary follicles have a single layer of ...
Báo, Sônia Nair, Carvalho, Fabíola Christian Almeida de, Figueiredo, José Ricardo de, Lucci, Carolina Madeira, Silva, José Roberto Viana   +4 more
core   +4 more sources

Characterization of isolated late preantral and early antral equine ovarian follicles [PDF]

Reproduction and Fertility
Understanding how to effectively isolate a large number of healthy follicles is essential for increasing success rates in ARTs, such as in vitro culture and cryopreservation.
Ana Normélia P Morais, Gustavo D A Gastal, Francisco L N Aguiar, Kendall A Hyde, Melba O Gastal, Laritza F Lima, Lucy V S Ñaupas, Ana Flávia B Silva, Verónica A B Becerra, Luiza Gheno, Bruna R Curcio, Carine D Corcini, Ana Paula R Rodrigues, José R Figueiredo, Antonio S Varela Jr, Eduardo L Gastal   +15 more
doaj   +2 more sources

Optimization of Sodium Alginate Concentration and Evaluation of Individual Versus Group In Vitro Culture of Porcine Preantral Follicles in a Serum-Free Medium [PDF]

Animals
The increasing biomedical and conservation interest in porcine species has driven the development of advanced in vitro follicle culture systems designed to preserve genetic diversity and accurately model key stages of folliculogenesis.
Alfredo González-Gil, Belén Sánchez-Maldonado, Carlos García-Artiga, Pedro José Aranda, Rosa Ana Picazo   +4 more
doaj   +2 more sources

Histological and ultrastructural analysis of cryopreserved sheep preantral follicles [PDF]

Animal Reproduction Science, 2006
The aim of this study was to verify the histological and ultrastructural characteristics of sheep preantral follicles after exposure of ovarian tissue to cryopreservation in glycerol (GLY), ethylene glycol (EG), propanediol (PROH) or dimethyl sulfoxide ...
Báo, Sônia Nair, Costa, Sonia Helena Furtado, Figueiredo, José Ricardo de, Hurk, Rob Van Den, Lucci, Carolina Madeira, Matosa, Maria H.T., Rodrigues, Ana Paula Ribeiro, Santos, Regiane R., Silva, José Roberto Viana   +8 more
core   +5 more sources

Anti-Müllerian hormone-mediated preantral follicle atresia is a key determinant of antral follicle count in mice [PDF]

Human Reproduction, 2022
Yiran Zhou, Dorothy E Oorschot, Michael W Pankhurst   +2 more
exaly   +2 more sources

Development of Mouse Preantral Follicle after In Vitro Culture in A Medium Containing Melatonin [PDF]

Cell Journal, 2015
Objective: Improvements in cancer treatment have allowed more young women to survive. However, many cancer patients suffer from ovarian failure. Cryopreservation is one of the solutions for fertility restoration in these patients. The cryopreservation of
Roya Ganji, Mohammad Nabiuni, Roya Faraji   +2 more
doaj   +2 more sources

Biochemical and immunohistochemical examination of the effects of ephedrine in rat ovary tissue [PDF]

Acta Cirúrgica Brasileira, 2023
Purpose: It was aimed to investigate the biochemical and immunohistochemical effects of ephedrine (EPH) in bilateral ovariectomized rats. Methods: Twenty-four Sprague Dawley female rats were divided into three groups: control group: The abdomen was ...
Veysel Toprak, Senem Alkan Akalın, Ece Öcal, Yunus Çavuş, Engin Deveci   +4 more
doaj   +1 more source

Transcriptome comparisons detect new genes associated with apoptosis of cattle and buffaloes preantral follicles

Journal of Genetic Engineering and Biotechnology, 2021
Background To develop new breeding technology to improve the breeding ability of bovine, it is the development trend to find the main reason for the occurrence of atresia in these organisms.
Khairy Mohamed Zoheir, Ahmed Mohamed Darwish, Yang Liguo, Abdelkader E. Ashour   +3 more
doaj   +1 more source

Review: Roles of follicle-stimulating hormone in preantral folliculogenesis of domestic animals: what can we learn from model species and where do we go from here?

Animal, 2023
The pituitary gonadotropin FSH is a glycoprotein critical for the development of ovarian follicles. Upon binding to its G protein-coupled membrane receptor located on the granulosa cells of ovarian follicles, FSH elicits a cascade of downstream ...
Amanda J. Morton, Juliana I. Candelaria, Stephanie P. McDonnell, Daniel P. Zgodzay, Anna C. Denicol   +4 more
doaj   +1 more source

Single-cell transcriptome and cell-specific network analysis reveal the reparative effect of neurotrophin-4 in preantral follicles grown in vitro

Reproductive Biology and Endocrinology, 2021
Background In-vitro-grow (IVG) of preantral follicles is essential for female fertility preservation, while practical approach for improvement is far from being explored.
Yingchun Guo, Peigen Chen, Tingting Li, Lei Jia, Yi Zhou, Jiana Huang, Xiaoyan Liang, Chuanchuan Zhou, Cong Fang   +8 more
doaj   +1 more source