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BACKGROUND Premenstrual syndrome (PMS) is a common finding in luteal phase of menstrual cycle resulting in several changes in woman life including pain sensation. OBJECTIVES This study evaluated the alterations of postoperative pain sensation in those with and without a history of PMS. PATIENTS AND METHODS A total of 140 women in in postoperative period were assigned to four groups regardin...

Previous studies have indicated phase-related differences in HPA activity and amygdala responsiveness in women, such that the response to negative emotional images is reduced during high-estrogen phases of the menstrual cycle. Other research has indicated an opposite effect of exogenous progesterone, increasing amygdala activity at some doses. However, no study to date has assessed the response...

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...

Objective To investigate whether mid-luteal serum progesterone (P4) exhibits significant fluctuations during a 12-h daytime period in women undergoing in vitro fertilization (IVF) and to explore whether the extent of these fluctuations could impact the interpretation of luteal progesterone levels in a clinical setting. Design Explorative pilot study. Setting Public hospital-based fertility ...

Implantation is a complicated process that involves adequate preparation of the endometrium. An important contributor to this preparatory process is the corpus luteum, the primary function of which is to secrete progesterone to induce secretory transformation of the endometrium so that implantation can occur and the necessary support can be provided for the pregnancy during the early stages of ...