Tissue homeostasis of the myocardium in newborn albino rats exposed to intrauterine hypoxia

Somatometric indexes were modified in the offspring of rats exposed to hypobaric hypoxia. DNA synthesis and tissue mitotic index increased in 5-day-old male rats, but underwent less pronounced changes in females. Our results indicate that hypoxia modulates morphogenesis of the myocardium. We revealed sex differences in the reaction of newborn albino rats to intrauterine hypoxia.