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Effects of exercise on sexual function and central mechanism in the streptozotocin-induced diabetic rats

Jae-Min Lee1, Tae-Woon Kim1, Hye-Sang Park1

  • 1Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea.

Journal of Exercise Rehabilitation
|March 8, 2018
PubMed

Insights

Treadmill exercise improved sexual dysfunction in diabetic rats by restoring nitric oxide synthase (NOS) and c-Fos expression in the paraventricular nucleus (PVN). This suggests exercise activates neurons, enhancing sexual function.

Area of Science:

  • Neuroscience
  • Endocrinology
  • Exercise Physiology

Background:

  • Diabetes mellitus frequently causes sexual dysfunction, linked to nitric oxide synthase (NOS) defects in the paraventricular nucleus (PVN).
  • c-Fos expression indicates neuronal activity, relevant for understanding neural pathways in sexual function.

Purpose of the Study:

  • To investigate the impact of treadmill exercise on sexual behaviors in diabetic rats.
  • To assess the effects of exercise on NOS and c-Fos expression within the PVN of diabetic rats.

Main Methods:

  • Diabetes was induced in rats using streptozotocin (STZ).
  • Exercise groups ran on a treadmill for 30 minutes daily for 4 weeks.
  • Sexual behaviors were quantified by recording mounting, intromission, and ejaculation frequencies.

Main Results:

  • Treadmill exercise significantly improved sexual dysfunction in STZ-induced diabetic rats.
  • Exercise normalized the levels of NOS and c-Fos in the PVN.
  • These findings indicate exercise enhances sexual function through neuronal activation.

Conclusions:

  • Treadmill exercise offers a potential therapeutic strategy for managing sexual dysfunction in diabetes.
  • Exercise-induced increases in nitric oxide (NO) and c-Fos expression contribute to improved sexual function.
Keywords:
Diabetes mellitusNitric oxideParaventricular nucleusSexual dysfunctionTreadmill exercisec-Fos

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