Results 101 to 110 of about 5,344 (205)

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

Effect of PACAP and VIP on mouse preantral follicle development in vitro

, 2004
Pituitary adenylate cyclase-activating polypeptide (PACAP) is a bioactive peptide isolated from ovine hypothalamus. It is transiently expressed in preovulatory follicles and positively affects several parameters correlated with the ovulatory process.
SCALDAFERRI L, CECCONI, Sandra, ROSSI G, BARBERI M, CANIPARI R.   +4 more
core  

Presence of anti-Müllerian hormone (AMH) during follicular development in the porcine ovary - Fig 1

, 2018
Representative AMH staining (brown) in the porcine ovary: (A) 1. Small preantral follicle, 2. Primary follicle, 3. Recruited primordial follicle, 4. Quiescent primordial follicle in which AMH staining is absent; (B) Large preantral follicle; (C) Small ...
Annelies Bunschoten (137959), Nicoline M. Soede (5064719), Bas Kemp (341425), Katja J. Teerds (5574923), Fernanda R. C. L. Almeida (5574917), Natasja G. J. Costermans (5574920), Jaap Keijer (44996)   +6 more
core   +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

Age effect on the mean distance of equine preantral follicles to the ovarian geometric center recorded in histological sections (n = 240).

, 2018
Each circle of the graph represents an evaluated preantral follicle (n = 9,284). Linear regression and correlation analyses are presented.
Eduardo L. Gastal (2267074), Melba O. Gastal (2267056), José R. Figueiredo (2267077), Benner G. Alves (2267065), Kele A. Alves (2267062), Gustavo D. A. Gastal (2267071)   +5 more
core   +1 more source

224. Platelet derived growth factors and receptors in the rat ovary contribute towards preantral follicle growth

, 2005
In this study, the family of platelet derived growth factors (PDGF) and receptors were identified and characterized in the rat ovary and a role in contributing towards growth of preantral follicles was revealed.
C. C. Taylor, L. S. Sleer
core   +1 more source

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

Vitamin C Synergistically Enhances Protective Effects of Vitamin E Against Preantral Follicle Degeneration of Ovine Vitrified/Warmed Ovarian Tissue

This study aimed to evaluate whether the addition of vitamins E and C as two conventional antioxidants improves the cryotolerance of preantral follicles enclosed in ovine ovarian tissue slices.
Afzali, Azita, Bagheri, Azita, Davoodian, Najmeh, Ahmadi, Ebrahim, Shams-Esfandabadi, Naser, Nazifi, Sina, Shirian, Sadegh, Nazari, Hassan   +7 more
core   +1 more source