ARTICLE INFO

Article Type

Original Research

Authors

Karimipour   A. (1 )
Abbasnejad   M. (1 )
Kesmati   M. (2 )
Sofiabadi   M. (* )






(* ) Physiology Department, Medicine Faculty, Qazvin University of Medical Sciences, Qazvin, Iran
(1 ) Biology Department, Science Faculty, Shahid Bahonar University, Kerman, Iran
(2 ) Biology Department, Science Faculty, Shahid Chamran University, Ahvaz, Iran

Correspondence

Address: Physiology Department, Shahid Baba’ei Medical Faculty, Qazvin University of Medical Sciences, Shahid Bahonar Street, Qazvin, Iran. Postal Code: 3419759811
Phone: +982833336001
Fax: +982833324970
mohasofi@yahoo.com

Article History

Received:   April  10, 2014
Accepted:   April 23, 2014
ePublished:   September 23, 2014

ABSTRACT

Aims Sex hormones and exercise may influence anxiety, individually. This study was done to investigate the effect of exercise and progesterone on anxiety in ovariectomized female rats.
Materials & Methods In this experimental study, 40 adult female Wistar rats weighting 200±20gr were used. They were ovarectomized after anesthesia. They were randomly divided to five groups including control (no treatment), sesame oil, exercise and sesame oil, progesterone (8mg/kg), progesterone and exercise. 30min after intraperitoneally injection of the vehicle or progesterone or before exercise the percentage of animal enterance to the open arms and the percentage of time spent in the open arms were measured.
Findings Intraperitoneally injection of progesterone (8mg/kg) reduced the mean percentage of open arms entries and the average percentage of time spent in the open arms compared to control group (p<0.05). Doing exercises before injection of progesterone inhibited both progesterone-induced anxiety related symptoms.
Conclusion Administration of pharmacological doses of the progesterone hormone increases anxiety and physical activity can reduce this effect.


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