• 2005). Hormonal fluctuations in the course of the estrous cycle have the same pattern in younger female rodents starting puberty as they do in older females. (deubiquitinaseinhibitor.com)
  • One difference is that animals that have estrous cycles resorb the endometrium if conception does not occur during that cycle. (wikipedia.org)
  • Mammals that have menstrual cycles shed the endometrium through menstruation instead. (wikipedia.org)
  • Ozbilgin K, Boz B, Tuğyan K, Inan S, Vatansever S. RHAMM Expression in the Rat Endometrium during the Estrous Cycle and following Implantation. (jri.ir)
  • The estrous cycle (from Latin oestrus 'frenzy', originally from Ancient Greek οἶστρος (oîstros) 'gadfly') is a set of recurring physiological changes induced by reproductive hormones in females of mammalian subclass Theria. (wikipedia.org)
  • The objective of the study was to estimate the impact of proligestone administration on the suppression of oestrus and on the prevention of recurrence of feline oestrous cycle and its probable unwanted effects. (vin.com)
  • The duration of behavioural alterations indicative of oestrus was recorded in 22 young cats during two consecutive oestrous periods. (vin.com)
  • During the 1st oestrus (puberty), the animals received no treatment while on the 2nd day of overt oestrous sign manifestation of the 2nd oestrus, 18 cats were sc treated with proligestone (33 mg/kg) while the remaining 4 cats received normal saline (NS, 0.33 ml/kg), sc. (vin.com)
  • Ewes were injected s.c. twice a day with vehicle or 10 mg RU486 on days 5-7 of the oestrous cycle (oestrus = day 0). (oregonstate.edu)
  • Four of five RU486-treated ewes showed 'split-oestrus' (oestrous behaviour for 36 h and then again at 84-108 h after the onset of initial oestrus). (oregonstate.edu)
  • Female Jak2 G −/− mice exhibited significantly delayed puberty and first estrus, abnormal estrous cyclicity, and impaired fertility. (jneurosci.org)
  • Estrous cycles start after puberty in sexually mature females and are interrupted by anestrous phases or pregnancies. (absoluteastronomy.com)
  • The estrous cycle comprises the recurring physiologic changes that are induced by reproductive hormones in most mammalian placental females. (absoluteastronomy.com)
  • In contrast, females of species with menstrual cycles can be sexually active at any time in their cycle, even when they are not about to ovulate. (wikipedia.org)
  • Humans have menstrual cycles rather than estrous cycles. (wikipedia.org)
  • Estrogen and progesterone levels fluctuate naturally for the duration of the primate menstrual cycle plus the rodent estrous cycle. (deubiquitinaseinhibitor.com)
  • The primate menstrual and rodent estrous cycles are closely analogous in spite of the fact that female rodents do not have a functional corpus luteum and consequently do not have a phase analogous to the primate luteal phase (Finn, 2020). (deubiquitinaseinhibitor.com)
  • Estrous cycles start after sexual maturity in females and are interrupted by anestrous phases, otherwise known as "rest" phases, or by pregnancies. (wikipedia.org)
  • The extent and time course of the response to SD did not differ between the two phases of the estrous cycle. (uzh.ch)
  • The utreri of rats were collected according to estrous cycle phases (menstruation group). (jri.ir)
  • The rodent estrous cycle lasts 4 days and consists of 4 phases: proestrus, estrus, metestrus (diestrus I), and diestrus (II). (deubiquitinaseinhibitor.com)
  • The resting period between diestrus and the next heat cycle. (merckvetmanual.com)
  • The rats bearing implants of NE in the median eminence-arcuate nucleus region (MAR) showed irregular estrous cycles or prolonged diestrus and their ovaries had few follicles and atrophic corpora lutea. (karger.com)
  • The study was conducted on 155 female Wistar rats (aged 3 months, body mass--180-200 g), in diestrus phase of the sexual cycle. (nih.gov)
  • The regular female reproductive cycle of most placental mammals that is under hormonal control and includes a period of heat, followed by ovulation and complex changes of the uterine lining. (yourdictionary.com)
  • The animals were observed for oestrous behaviour for a 12-week period following NS, 1st, 2nd and 3rd proligestone administration. (vin.com)
  • Many mammals used in commercial agriculture, such as cattle and sheep, may have their estrous cycles artificially controlled with hormonal medications for optimum productivity. (wikipedia.org)
  • The uterus undergoes extensive remodeling during estrous cycle and embryo implantation (10). (jri.ir)
  • It is known that RHAMM plays an important role in several cellular events, but the role of RHAMM during estrous cycle and embryo implantation has not been investigated much. (jri.ir)
  • In conclusion, later timing of FTAI following the 7 and 7 Synch protocol failed to improve P/AI of estrous cows inseminated h sex-sorted semen. (umsystem.edu)
  • In species with estrous cycles[citation needed], females are generally only sexually active during the estrus phase of their cycle. (wikipedia.org)
  • Methods: The female adult rats were divided into six groups following estrous cycle determination (n=36). (jri.ir)
  • In addition, we found that the estrous cycle of the female rats did not have a significant effect on the avoidance response. (lu.se)
  • Ovarian function in ewes after treatment with mifepristone early during the oestrous cycle. (oregonstate.edu)
  • The mean masses of mature corpora lutea from control and RU486-treated ewes on day 6 of the oestrous cycle did not differ significantly (394.8 +/- 28.8 versus 319.5 +/- 48.3 mg). (oregonstate.edu)
  • Sleep homeostasis in the female rat during the estrous cycle. (uzh.ch)
  • To investigate whether sleep homeostasis in the female rat is modulated by the estrous cycle, the vigilance states, EEG power spectra and cortical temperature (TCRT) were assessed on the basis of 4-day continuous recordings. (uzh.ch)
  • Female sexual behavior was affected by 4-MBC and 3-BC, estrous cycles by 3-BC. (researchgate.net)
  • A vaginal smear was prepared for each female and the stage of the oestrous cycle or the presence of sperm was recorded. (europa.eu)
  • Local Changes in Immunoreactive Gonadotropin Releasing Hormone in the Rat Median Eminence during the Estrous Cycle. (karger.com)
  • These cycles are widely variable in duration and frequency depending on the species. (wikipedia.org)
  • Follicle development and serum concentrations of gonadotropins were monitored daily during 1 estrous cycle. (avma.org)
  • To obtain a high conception rate and litter size, estrous detection (heat checking) must be done carefully and without fail. (missouri.edu)
  • Animals with estrous cycles often have unmistakable outward displays of receptivity, ranging from engorged and colorful genitals to behavioral changes like mating calls. (wikipedia.org)
  • A four-phase terminology is used in reference to animals with estrous cycles. (wikipedia.org)
  • Animals -16 healthy mares with normal estrous cycles. (avma.org)
  • The estrous cycle in the pig averages 21 days but can range from 17 to 25 days. (missouri.edu)
  • In Expt 2, ewes were injected s.c. each day with vehicle or 175 mg RU486 on days 2-5 of the oestrous cycle followed by administration of prostaglandin F(2alpha) on day 6. (oregonstate.edu)
  • In estrous cycle and on day 4 of pregnancy, the rat endometrial stroma has two morphologically distinct compartments, denominated supepithelium and deep stroma. (jri.ir)
  • It is concluded that despite the marked baseline variations of the vigilance states and the EEG, homeostatic regulation is little affected by the estrous cycle. (uzh.ch)
  • In this study, we focus on the expression of RHAMM in the rat uterus during estrous cycle and implantation period. (jri.ir)
  • Conclusions and Clinical Relevance -Administration of deslorelin was associated with reduction in circulating concentrations of FSH and gonadotropin response to administration of GnRH during the estrous cycle. (avma.org)
  • Find similar words to estrous cycle using the buttons below. (yourdictionary.com)
  • The first two compartments (supepithelium and deep stroma) are similar to those of the estrous cycle. (jri.ir)
  • showed, for the first time, that RHAMM is differentially expressed during all stages of preimplantation human embryos and human embryonic stem cells (hESC), and indicated that RHAMM knockdown results in down-regulation of several pluripotency markers in hESCs, induction of early extraembryonic lineage, loss of cell viability, and changes in hESC cycle (2). (jri.ir)
  • Twice-daily estrous detection is more effective than once-daily detection, although it is also more time- and labor-consuming. (missouri.edu)