One important function of endocannabinoids and related lipid mediators in mammalian central nervous system is modulation of pain. Evidence obtained during the last decade shows that altered levels of these compounds in the brain accompany decreases in pain sensitivity. Such changes, if sexually dimorphic, could account for sex differences in pain and differences that occur during different phas...

Cognitive function can be affected by the estrous cycle. However, the effect of the estrous cycle on synaptic functions is poorly understood. Here we show that in female rats, inhibitory-avoidance (IA) task (hippocampus-dependent contextual fear-learning task) drives GluA2-lacking Ca2+-permeable AMPA receptors (CP-AMPARs) into the hippocampal CA3-CA1 synapses during all periods of the estrous c...

Serum luteinizing hormone, follicle-stimulating hormone, prolactin, thyroid-stimulating hormone, and growth hormone and hypothalamic luliberin and thyroliberin contents were measured at given times of the estrous cycle in a dimethylbenz(a)anthracene (DMBA)-susceptible strain of rat (Sprague-Daw ley) and in a DMBA-resistant strain of rat (Wistar) for periods up to the appearance of the first mam...

Serum luteinizing hormone, follicle-stimulating hormone, prolactin, thyroid-stimulating hormone, and growth hormone and hypothalamic luliberin and thyroliberin contents were measured at given times of the estrous cycle in a dimethylbenz(a)anthracene (DMBA)-susceptible strain of rat (Sprague-Daw ley) and in a DMBA-resistant strain of rat (Wistar) for periods up to the appearance of the first mam...

Background: There are accumulating evidences showing the role of adiponectin, a newly discovered adipocytokine secreted from adipose tissue, in the regulation of the ovarian function in dairy cows. The objective of the present study was to evaluate the pattern of serum adiponectin concentration during a normal estrous cycle in the postpartum dairy cows. Materials and Methods: Coccygeal vein blo...

overall, 531 dairy cows were inseminated with the aim to study their reproductive performance following administration of gnrh analogue on different days of estrous cycle with different doses. these cows were divided into six treatment and one control group. depending upon different treatment groups, buserelin acetate was injected at a dose of 10.5 µg or 21.0 µg on different days (0, 5 or 12) o...

to investigate uterine and serum copper (cu) and zinc (zn) concentrations variation duringthe bovine estrus cycle , 232 blood and genital tract samples were collected from the abattoir inurmia. the phase of the estrous cycle was determined by the examination of the ovaries and theuterine tonicity. of the 46 samples selected for use in the study, 13 were pro-estrus, 10 estrus, 8metestrus, and 15...

Eckel, Lisa A., Heidi M. Rivera, and Deann P. D. Atchley. The anorectic effect of fenfluramine is influenced by sex and stage of the estrous cycle in rats. Am J Physiol Regul Integr Comp Physiol 288: R1486 –R1491, 2005. First published January 6, 2005; doi:10.1152/ajpregu.00779.2004.—The controls of food intake differ in male and female rats. Daily food intake is typically greater in male rats,...