Results 71 to 80 of about 7,563 (208)

Epidermal growth factor prevents prepartum luteolysis in the rat [PDF]

Proceedings of the National Academy of Sciences, 2005
We have previously reported that intrauterine (i/u) administration of epidermal growth factor (EGF 500 ng) on day (d) 21 of pregnancy delayed 19.0 ± 0.6 h the onset of labor. Progesterone (P) is secreted by ovarian corpora lutea (CL) throughout gestation in the rat.
Ribeiro, ML, Aisemberg, J, Billi, S, Farina, MG, Meiss, R, McCann, S, Rettori, V, Villalon, M, Franchi, AM   +8 more
openaire   +4 more sources

L‐Theanine Ameliorates Doxorubicin‐Induced Ovarian Toxicity by Reducing Endoplasmic Reticulum Stress

Food Science &Nutrition, Volume 13, Issue 4, April 2025.
L‐theanine is the most important nutraceutical compound in green tea. The aim of this study is to investigate for the first time whether LTN has any therapeutic effect on DOX‐induced ovarian toxicity, especially in terms of endoplasmic reticulum stress.
Meltem Arıkan Malkoç, Serap Özer Yaman, Esin Yuluğ, Semanur Işık, Birgül Kural   +4 more
wiley   +1 more source

Systemic Changes in Early Pregnancy in the Mare: An Integrated Proteomic Analysis of Blood Plasma, Histotroph, and Yolk Sac Fluid at Day 14 Post‐Ovulation

PROTEOMICS – Clinical Applications, Volume 19, Issue 2, March 2025.
ABSTRACT Purpose Embryo‐maternal signaling during the establishment of pregnancy in horses remains one of the biggest mysteries in large animal physiology. Early pregnancy loss represents a major source of economic loss to the breeding industry. This study aimed to investigate the systemic changes associated with early pregnancy by mapping the proteome
Tharangani R. W. Perera, Marta de Ruijter‐Villani, Zamira Gibb, Brett Nixon, Alecia Sheridan, Tom A. E. Stout, Aleona Swegen, David A. Skerrett‐Byrne   +7 more
wiley   +1 more source

Effect of stage of the estrous cycle at the time of initial exposure to rams on the ovarian activity of Pelibuey ewes

Czech Journal of Animal Science, 2014
Forty non-lactating, cyclic adult Pelibuey ewes were randomly divided into six groups. Estrus was synchronized within each group using intravaginal sponges and prostaglandin F2α injection at the time of the sponge removal.
S. Jarquin, A. Roldan, L. Zarco, J. Berruecos, J. Valencia   +4 more
doaj   +1 more source

Ovarian Dehydrogenase Activities: Suggested Adrenal Involvement in Luteolysis

Experimental Biology and Medicine, 1976
Immature rat ovarian dehydrogenase activity was studied during corpus luteum regression following withdrawal of prior pregnant mare serum gonadotrophin. Glucose-6-phosphate dehydrogenase activity declined to nontreatment levels whereas 6-phosphogluconate, malate, and isocitrate dehydrogenase dehydrogenases exhibited a partial return to normal ...
V D, Castracane, J H, Leathem
openaire   +2 more sources

FABP4 Mediates Inflammation to Regulate Endometrial Epithelial Cell Function During Early Gestation in Sheep

Veterinary Medicine and Science, Volume 11, Issue 2, March 2025.
To model the hormonal environment of sheep during pregnancy, estradiol (E2), progesterone (P4) and interferon‐tau (IFN‐τ) were used. The sheep endometrial epithelial cells (sEECs) were then stimulated with different concentrations of lipopolysaccharide (LPS) to determine suitable concentrations for inducing inflammation, while FABP4 expression was ...
Yan Chen, Chang Liu, Zhijiao Liu, Hengbin Yu, Xiayu Peng, Jing Wang, Guangdong Hu   +6 more
wiley   +1 more source

Double cloprostenol administration during mid luteal phase of oestrous cycle does not modify the interoestrous interval in gilts

Italian Journal of Animal Science, 2014
The present study was undertaken to test the effect of two vulva injections of D-cloprostenol on day 7, 9 and 10 of oestrous cycle on the duration of the interestrous interval in gilts.
Claudio Mazzoni, Roberta Saleri, Roy N. Kirkwood, Elisabetta Macchi, Techakumphu Mongkol, Fabio De Rensis   +5 more
doaj   +1 more source

Uso da análise computacional de imagens de ultra-som na avaliação da ecotextura luteal e sua relação com a concentração de progesterona plasmática durante o ciclo estral de novilhas mestiças (Bos taurus taurus x Bos Taurus indicus). [PDF]

, 2019
Edição dos anais da 21o.
AMORIM, L. S., CAMARGO, L. S. A., FERNANDES, C. A. C., FONSECA, J. F. da, MONTEIRO JÚNIOR, P. L. J., SIQUEIRA, L. G. B., SOUZA, E. D., TORRES, C. A. A., VIANA, J. H. M.   +8 more
core  

Effects of Splenectomy on Luteolysis in Pseudopregnant Rabbits.

Journal of Veterinary Medical Science, 1995
The effects of splenectomy on luteolysis in pseudopregnant rabbits were observed. Pseudopregnancy was induced in the rabbits by mating with vasoligated mature males and injection of human chorionic gonadotrophin (D0). In these rabbits, the concentration of serum progesterone increased for 7 days after the induction of pseudopregnancy.
K, Nariai, K, Kanayama, T, Endo, A, Tsukise   +3 more
openaire   +3 more sources

Unraveling the Clinical FSH Conundrum: Insights From the Small Ovarian Reserve Heifer Model

Molecular Reproduction and Development, Volume 92, Issue 2, February 2025.
ABSTRACT High doses of follicle stimulating hormone (FSH) are used during ovarian stimulation to maximize the number of oocytes recovered for in vitro fertilization (IVF) during assisted reproductive technology (ART) in women. Whether high FSH doses are detrimental to embryo viability remains controversial.
James J. Ireland, Kaitlin R. Karl, Keith E. Latham   +2 more
wiley   +1 more source