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Journal of Clinical Endocrinology & Metabolism, Vol 76, 1123-1127, Copyright © 1993 by Endocrine Society

ARTICLES

Neuroendocrine changes in luteal function in patients with premenstrual syndrome

F Facchinetti, AD Genazzani, E Martignoni, L Fioroni, G Nappi and AR Genazzani
University Centre for Adaptive Disorders and Headache, University of Modena, Italy.

The present study evaluates the luteal progesterone (P) and LH secretions in 14 patients affected by premenstrual syndrome (PMS) and in 14 asymptomatic controls through the evaluation of their episodic release. PMS was prospectively confirmed in two consecutive menstrual cycles using Moos' Menstrual Distress Questionnaire. A pulsatility study was performed during the luteal phase. Blood samples were drawn every 10 min for 12 h, beginning at 0800 h. Statistically significant pulses were detected using the Detect program, and the degree of concordance of LH and P pulses was estimated. Similar mean 12-h P levels were found in controls (mean +/- SD, 13.9 +/- 9.3 nmol/L) and patients (14.2 +/- 10.1). LH levels were also similar in the two groups. Patients showed a higher P pulse frequency (13.4 +/- 1.8 vs. 11.4 +/- 2.3; P < 0.02) and a reduced amplitude of secretory episodes (126.5 +/- 61.6% vs. 187.1 +/- 126.7%; P < 0.03) than controls. Similarly, PMS patients showed pulsatile LH release of increased frequency and reduced amplitude than controls. A significant degree of concordance between LH and P pulses was observed in both groups, with a time lag of 0-10 min; that is, P secretory episodes follow LH with a delay of 0-10 min. These findings demonstrate that despite the fact that integrated P levels in PMS patients are similar to those in control subjects, the episodic secretion of the hormone is characterized by pulses of increased frequency and reduced amplitude. This phenomenon is temporally related to LH secretion, thus reinforcing the concept of PMS as a neuroendocrine disorder.


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R. Rosenfeld, D. Livne, O. Nevo, L. Dayan, V. Milloul, S. Lavi, and G. Jacob
Hormonal and Volume Dysregulation in Women With Premenstrual Syndrome
Hypertension, April 1, 2008; 51(4): 1225 - 1230.
[Abstract] [Full Text] [PDF]


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