Body temperature and sleep change in association with increased progesterone in the luteal phase of the menstrual cycle in young women. The mechanism by which progesterone raises body temperature is not known but may involve prostaglandins, inducing a thermoregulatory adjustment similar to that of fever. Prostaglandins also are involved in sleep regulation and potentially could mediate changes ...

Serum Calcium (Ca), Magnesium (Mg) and Inorganic phosphorous (Pi) were investigated serially during menstrual, follicular, ovulatory and luteal phases of menstrual cycle in 25 healthy medical student volunteers. The result shows significant cyclic variations within physiological limits in all parameters. Ca level was highest during ovulation (P < 0.001) and lowest during luteal phase (P < 0.001...

It is well established that women experience food craving for particular foods and gain weight in relation to phases of menstrual cycle. In this study, the preference for different concentrations of salt sprayed on bland popcorn was assessed in 55 healthy women (age 18 to 22 yrs). Salt solutions of 0, 1, 2, 3 and +3 molar strength were used. Samples of sprayed popcorn were consumed in random or...

Although endogenous sex steroid hormones in premenopausal women may be associated with the risk of breast cancer and other illnesses, direct evidence to support this hypothesis is limited in large part by methodological issues in the conduct of relevant studies. One major unresolved issue is whether a single blood sample (such as is available in most epidemiological studies), collected in a spe...

OBJECTIVE To evaluate the variability of three-dimensional automatic counts of ovarian follicles measuring 2-6 to 2-10 mm during the menstrual cycle and to determine if this test can be applied outside the early follicular phase of the menstrual cycle. METHODS in a prospective observational study, serial transvaginal ultrasound scans were performed from April 20, 2013, to October 30, 2014, on...

Cocaine stimulates gonadotropin (luteinizing hormone) release from the anterior pituitary in humans and in rhesus monkeys, but its acute effects on ovarian steroid hormones are unknown. The acute effects of cocaine and placebo on estradiol and progesterone were studied in 13 drug-naive female rhesus monkeys during the mid-follicular (days 8-10) and the mid-luteal (days 21-23) phases of the mens...

To examine the effect of menstrual cycle on the ventilatory sensitivity to rising body temperature, ten healthy women exercised for ~60 min on a cycle ergometer at 50% of peak oxygen uptake during the follicular and luteal phases of their cycle. Esophageal temperature, mean skin temperature, mean body temperature, minute ventilation, and tidal volume were all significantly higher at baseline an...

I Pituitaries were collected from late Relative to follicular and luteal phase ewes, follicular phase (n = 51, mid-luteal phase (n = 51, anestrous ewes had lower percentages of isoforms and anestrous ewes In = 4) to assess changes in D and E as well as higher percentages of isoforms intrapituitary LH heterogeneity a t selected G, H, J and K. Isoform F, the predominant reproductive states. After...

The results of previous studies on the menstrual-related sleep changes were inconsistent. The menstrual-related circadian sleep-wake and rest-activity rhythms changes are still uncertain. Using actigraphic monitoring of wrist activity, we investigated the sleep-wake and rest-activity patterns of 12 normally cyclic healthy women during reproductive life. Multivariate analyses were performed duri...

The neurotransmitter galanin has been implicated in the steroidogenic regulation of reproduction based on work mainly conducted in rodents. This study investigated the temporal changes in the expression of galanin and its three receptor isoforms and GNRH and GNRHR mRNA in specific hypothalamic nuclei known to be involved in the regulation of reproductive cyclicity, namely the medial pre-optic a...