Fos expression in the suprachiasmatic nucleus in rats following high altitude exposure.

INTRODUCTION Disturbances of circadian rhythms occur at high altitude. We examined the suprachiasmatic nucleus (SCN), considered to be the biological clock in mammals that regulates circadian rhythmicity, in adult rats following an exposure to simulated high altitude. METHODS Male adult Wistar rats weighing 250 g were exposed to an altitude of 8000 m in… CONTINUE READING