Results 81 to 90 of about 5,344 (205)

Zinc Deficiency Disrupts Germ Cell Nest Breakdown During In Vitro Ovary Culture

Molecular Reproduction and Development, Volume 93, Issue 2, February 2026.
ABSTRACT In mammals, the size of the non‐renewable primordial follicle pool is established before or soon after birth. Primordial follicles, each composed of a single oocyte surrounded by somatic cells, are the only source of gametes during the entire reproductive lifespan of the female.
James M. Hester, Suzanne M. Getman, Melissa E. Pepling, Francisco J. Diaz   +3 more
wiley   +1 more source

TFAM‐Mediated mtDNA Replication is Essential for Developmental Competence of In Vitro Grown Oocytes

Reproductive Medicine and Biology, Volume 25, Issue 1, January/December 2026.
ABSTRACT Purpose Mitochondria are essential for oocyte maturation and early embryonic development, supplying ATP and maintaining mitochondrial DNA (mtDNA) integrity. During oogenesis, mtDNA undergoes dramatic amplification, but the mechanisms and functional significance of this process remain unclear. The purpose of this study was to elucidate the role
Son Quang Do, Hidetaka Tasaki, Hiroaki Funahashi, Takuya Wakai   +3 more
wiley   +1 more source

Biology and Biotechnology of Follicle Development

The Scientific World Journal, 2012
Growth and development of ovarian follicles require a series of coordinated events that induce morphological and functional changes within the follicle, leading to cell differentiation and oocyte development.
Gustavo Adolfo Palma, Martin Eduardo Argañaraz, Antonio Daniel Barrera, Daniela Rodler, Adrian Ángel Mutto, Fred Sinowatz   +5 more
doaj   +1 more source

Morphometry and immunohistochemistry of follicles growth and steroidogenesis in saharian wild sand rat, Psammomys obesus, ovary.

Folia Histochemica et Cytobiologica, 2010
The sand rat (Psammomys obesus) constitutes a model to study seasonal changes and several metabolic disorders. In order to perform breeding laboratory conditions, the reproductive function of this species living in North Occidental Algerian Sahara was ...
Jean-Marie Exbrayat, Farida Khammar, ThĂŠrese Gernigon-Spychalowicz, Amina Boubekri   +3 more
doaj   +1 more source

The effect of Abelmoschus esculentus pods ethanol extract on mice (Mus musculus) preantral follicle, antral follicle, and corpus luteum numbers exposed to carbon black [PDF]

, 2023
Introduction: This study aims to determine the preventive effect of okra (Abelmoschus esculentus) pods ethanol extract on the mice (Mus musculus) preantral follicle, antral follicle, and corpus luteum numbers exposed to carbon black.
Tita Damayanti Lestari, -, Yeni Dhamayanti, -, Widjiati, -, Rochmah Kurnijasanti, -, Mohamad Raviansyah Jawindra, -, Eduardus Bimo Aksono Herupradoto, -, Hani Plumeriastuti, -   +6 more
core  

Autoimmune Thyroid Disease and Female Fertility: Clinical Evidence on Ovarian Reserve, Infertility Treatment Outcomes, and Pathophysiology

Reproductive Medicine and Biology, Volume 25, Issue 1, January/December 2026.
Thyroid autoimmunity may exert a subtle influence on ovarian reserve through complex endocrine and immune mechanisms, with age‐specific variation. Although AMH alterations are observed, their clinical relevance for primary ovarian insufficiency, fertility, and treatment outcomes of assisted reproduction remains unclear, highlighting the need for ...
Akira Iwase, Yuko Hasegawa, Yoshikazu Kitahara, Seung Chik Jwa, Hiromitsu Shirasawa, Michio Kitajima, Yukiko Katagiri, Miyuki Harada, Kazuhiro Kawamura, Satoko Osuka   +9 more
wiley   +1 more source

Methods for Equine Preantral Follicles Isolation: Quantitative Aspects

Reproduction in Domestic Animals, 2013
ContentsThe aim of this study was to test the use of mechanical and mechanical‐enzymatic methods, saline solution (SS), and PBS solution for the manipulation and isolation of mare ovarian preantral follicles (PAFs). The ovaries were subjected to mechanical isolation (mixer) alone or in association with enzymatic digestion (collagenase).
Rivas Leonel, Ellen, Bento‐Silva, V, Ambrozio, KS, Luna, HS, Costa e Silva, EV, Zúccari, CESN   +5 more
openaire   +3 more sources

Expression of the neural cell adhesion NCAM in endocrine cells of the ovary [PDF]

, 1991
In the adult mammalian ovary morphogenesis and differentiation processes are under hormonal control and, thus, occur in a highly regulated way during the sexual cycle.
Lahr, G., Gratzl, Manfred, Mayerhofer, Artur   +2 more
core   +1 more source

The Role of Anethole in Reproductive Physiology and In Vitro Biotechnologies—A Review

Reproduction in Domestic Animals, Volume 61, Issue 1, January 2026.
ABSTRACT In vitro reproductive biotechnologies show promise for fertility preservation but still face challenges, including oxidative stress from high oxygen tension, which impairs cell viability and development. Antioxidants have been widely explored to attenuate oxidative stress during culture.
André Luiz da Conceição‐Santos, José Ricardo de Figueiredo   +1 more
wiley   +1 more source

Crosstalk between androgen and epidermal growth factor signalling in the ovary [PDF]

, 2018
The development and survival of preantral follicles within the mammalian ovary must be tightly regulated in order to ensure a healthy supply of oocytes for the entirety of a woman’s reproductive lifespan.
Thomson, Kacie
core   +1 more source