Animals, Journal Year: 2025, Volume and Issue: 15(9), P. 1249 - 1249
Published: April 28, 2025
Cats are different from dogs, and many questions remain open concerning the establishment of pregnancy. In cats, as in no feto-maternal signaling leading to pregnancy is known. But opposed placenta a source steroid hormones corticotropin-releasing hormone (CRH). Scarce information available on physiological mechanisms at uterine level during early gestation; more studies needed lymphocyte subsets, crosstalk other local immunosuppression, allograft acceptance embryo nidation invasion. Recent investigate function extracellular vesicles (EVs); however, there study embryo- or endometrium-derived EV. During pregnancy, anti-Müllerian (AMH) serum concentrations were found be higher than non-pregnant recent that supraphysiological levels may lead loss; AMH warrants investigation. Most corpus luteum development function, showing some similarities dogs. Some maintenance feline was obtained by ovariectomy (OE) use endocrine disruptors, OE does not loss all cases, especially when performed after day 35; variable effect still fully understood. Antiprogesterone, dopamine agonists prostaglandins used dosages treatment schemes showed second half gestation, highlighting progesterone prolactin key for gestation. events gestation comparable with canine species, even though they appear earlier, like entrance zygote into uterus implantation; significant differences present histomorphology and, few gross morphology where zonary completely surround fetus. Sonographical monitoring requires knowledge species-specific developmental steps differential appearance fetal maternal structures comparison
Language: Английский