Sex difference and postnatal change of maternal behavioral patterns in juvenile male and female rats.

Juvenile rats are known to show certain elements of maternal behavior. In this experiment, to investigate sex difference and postnatal change of retrieving and pup-cleaning (licking) behaviors in juvenile rats, these behaviors were recorded using new observation method at 20, 30 and 45 days of age in female and male Wistar rats. At 20 days of age, maternal behavior was observed in a common plastic observation cage (test A) and then test B was performed.

Effects of i.c.v. administration of leptin on copulatory and ingestive behavior in STZ-induced diabetic male rats.

It is well known that circulating leptin concentrations correlate with adiposity in both humans and rodents and decrease after fasting, energy restriction, or weight loss. The goal of the present study was to confirm whether the decreases of copulatory behavior and the increases of ingestive behavior in STZ-induced diabetic male rats could be reversed by i.c.

Intercontinental videoconference between US and Hungarian obstetricians: a 30-month study.

Over 30 months, 19 videoconferences were held between the Department of Obstetrics and Gynecology of the Cedars-Sinai Medical Center in Los Angeles and the Department of Obstetrics and Gynecology at the Semmelweis University in Budapest. Videoconferences used ISDN transmission at 384 kbit/s. In the main part of each videoconference a US expert presented various clinical topics.