Results 71 to 80 of about 6,106 (203)

Sphingosine 1-phosphate promotes activation of aprine preantral follicle in vitro

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2014
This study describes the effect of sphingosine 1-phosphate (S1P) for development of preantral follicle, therefore the activation and follicular viability of caprine follicles cultured in vitro.
J.E. Nóbrega Jr., R. Rossetto, M.H.T. Matos, R.N. Chaves, D.M. Magalhães, I.B. Lima-Verde, S.N. Báo, C.C. Campello, J.R. Figueiredo, P.B.D. Gonçalves, J.F.C. Oliveira   +10 more
doaj   +1 more source

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

Vitrification affects the expression of matrix metalloproteinases and their tissue inhibitors of mouse ovarian tissue

Iranian Journal of Reproductive Medicine, 2016
Background: One of the most major obstacles of ovarian tissue vitrification is suboptimal developmental competence of follicles. Matrix metalloproteinases 2 (MMP-2) and 9 (MMP-9) and their tissue inhibitors TIMP-1 and TIMP-2 are involved in the ...
Reza Asadzadeh, Shima Khosravi, Saeed Zavareh, Mohammad Taghi Ghorbanian, Seyed Hassan Paylakhi, Seyed Reza Mohebbi   +5 more
doaj  

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

Structure of preantral follicles, oxidative status and developmental competence of in vitro matured oocytes after ovary storage at 4 °C in the domestic cat model

Reproductive Biology and Endocrinology, 2018
Background Storage conditions during transportation of explanted ovaries are a critical step in setting up fertility preservation protocols in both animal and human fields.
Anna Rita Piras, Giovanni Pietro Burrai, Federica Ariu, Laura Falchi, Maria Teresa Zedda, Salvatore Pau, Sergio Domenico Gadau, Elisabetta Antuofermo, Daniela Bebbere, Sergio Ledda, Luisa Bogliolo   +10 more
doaj   +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

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

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

P-439 Production of ovine fertilizable oocytes using innovative in vitro (iv) technologies applied to preantral follicles growth.

, 2020
Study question: Considering the early pool of gametes potentially able to generate offspring, what actions should be taken to optimize ivF thus increasing fertilizable oocytes availability?
Maurizio Monaci, Martina Crociati, Chiara Di Berardino, Nicola Bernabò, Barbara Barboni., Giulia Capacchietti, Lakamy Sylla   +6 more
core  

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