Results 61 to 70 of about 8,097 (247)

15-Ketodihydro-PGF_2α, Progesterone and Cortisol Profiles in Heifers after Induction of Parturition by Injection of Dexamethasone

Acta Veterinaria Scandinavica, 2001
In order to study rapid changes in 15-ketodihydro-PGF2α, cortisol and progesterone in the period preceding parturition in cattle, pre-term parturition was induced in 4 late pregnant heifers.
Parvizi N, Gustafsson H, Kindahl H, Kask K, Königsson K   +4 more
doaj   +1 more source

Effects of Prepartum Supplementation and Yeast Fermentation Products on the Progesterone‐Modulated Transfer of Passive Immunity in Bos indicus Cows

Journal of Animal Physiology and Animal Nutrition, Volume 110, Issue 4, Page 463-473, July 2026.
ABSTRACT Inadequate colostrum intake increases risks of calf morbidity and mortality. This study investigated the effects of prepartum and early postpartum supplementation and yeast fermentation products on late‐pregnant Bos indicus cows, and the role of progesterone in mediating passive immunity transfer.
Latino G. S. Coimbra, Fran C. Cowley, Geoffry Fordyce, Luis F. P. Silva   +3 more
wiley   +1 more source

Dynamics of luteolysis in lactating dairy cows using two prostaglandin F2alpha analogues

, 2010
The probability of a pregnancy decreases substantially in lactating dairy cows treated with Ovsynch if corpus luteum regression is delayed or incomplete.
Martins, Joao Paulo Nascimento
core   +1 more source

Programmed necrosis - a new mechanism of steroidogenic luteal cell death and elimination during luteolysis in cows

Scientific Reports, 2016
Programmed necrosis (necroptosis) is an alternative form of programmed cell death that is regulated by receptor-interacting protein kinase (RIPK) 1 and 3-dependent, but is a caspase (CASP)-independent pathway.
T. Hojo, M. Siemieniuch, K. Lukasik, K. Piotrowska-Tomala, A. Jończyk, K. Okuda, D. Skarżyński   +6 more
semanticscholar   +1 more source

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.
NARIAI, Koichi, KANAYAMA, Kiichi, ENDO, Tuyoshi, TSUKISE, Azuma   +3 more
openaire   +3 more sources

Towards a Safe Pathway to Biological Parenthood for Pulmonary Arterial Hypertension

Pulmonary Circulation, Volume 16, Issue 2, April 2026.
ABSTRACT Pulmonary arterial hypertension (PAH) carries a high risk of maternal morbidity and mortality in pregnancy, and current guidelines advise against conception. For women with PAH who wish to have genetically related children, in vitro fertilisation (IVF) combined with gestational surrogacy presents a viable and increasingly safe alternative ...
Jamie D. Ingram, Scott M. Nelson, Melanie J. Brewis, Martin K. Johnson, Colin Church   +4 more
wiley   +1 more source

Small doses of human chorionic gonadotropin prevent estradiol-induced luteolysis

, 1984
The manner in which exogenous 17 beta-estradiol (E2) induces premature luteolysis in primates is unclear. In an effort to determine whether exogenous luteotropic hormone inhibits E2-induced luteolysis, E2 capsules were implanted subcutaneously in 11 ...
L. E. Horton, P. K. Westfahl, H. L. Stadelman, J. A. Resko   +3 more
core   +1 more source

Reproductive and Perinatal Outcomes of Embryo Transfer in Elite Hanwoo Cows

Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.
Reproductive outcomes following embryo transfer in Elite Hanwoo cows differed by embryo production method. OPU‐IVF was associated with higher abortion, increased birth weight of male calves and greater dystocia risk, whereas MOET resulted in more favourable calving outcomes, highlighting the importance of embryo production strategy and periparturient ...
Mi‐Ryung Park, Se Young Lee, Sang‐Rae Cho, Seungmin Ha, Yeoung‐Gyu Ko   +4 more
wiley   +1 more source

Treg cells retain stable lineage commitment during pregnancy in mice after late gestation inflammatory challenge

Immunology &Cell Biology, Volume 104, Issue 3, Page 276-311, March 2026.
In this study, we used Foxp3‐fatemapping mice to examine the cell lineage stability of Treg cells in pregnancy. Ex‐Foxp3 cells were identified in gestational tissues. However, Treg cells retained lineage stability with no increased ex‐Foxp3 generation, regardless of inflammatory challenges that induce preterm birth.
Kerrie L Foyle, Ella S Green, Jessie R Walker‐Rogers, Ha M Tran, David M Olson, Lachlan M Moldenhauer, Sarah A Robertson   +6 more
wiley   +1 more source

Effect of Flushing Diets With Different Omega‐6 to Omega‐3 Fatty Acids Ratios on Reproductive Performance and Blood Biochemical Attributes in Shall Ewes

Veterinary Medicine and Science, Volume 12, Issue 1, January 2026.
Dietary supplementation with different omega‐6:omega‐3 fatty acid ratios influenced ovarian activity, reproductive hormones and fertility outcomes in Shall ewes under semiarid conditions. Ewes receiving the lower ω6:ω3 ratio (1.5) showed improved follicular dynamics, higher progesterone levels and enhanced conception rate compared with higher ratios ...
Mahmood Zeraatkar, Ahmad Riasi, Mohammad Ali Edriss, Javad Habibizad, Kimia Kazemi, Mohammad Choupani   +5 more
wiley   +1 more source