introduction maternal and fetal characteristics can be effect on optimism which vary among different cultures and countries. so the aim of this study was to determine prenatal optimism and its relationship with fetal and maternal characteristics in primiparous women. materials and methods this research study was a descriptive cross - sectional. the statistical populations consisted of 240 pregn...

Arginases compete with nitric oxide (NO) synthases for L-arginine as common substrate. Pulmonary vascular and airway diseases in which arginase activity is increased are associated with decreased NO production and reduced smooth muscle relaxation. The developmental patterns of arginase activity and type I and II isoforms expression in the lung have not been previously evaluated. Hypothesizing t...

BACKGROUND Theophylline has been shown to cause heart anomaly in animal and human fetus. OBJECTIVES The present study aimed to investigate the protective effect of quercetin on theophylline-induced heart disorders in rat embryo. MATERIALS AND METHODS Theophylline-induced teratogenicity in rats was used as the animal model. Pregnant rats were administered theophylline (259 mg/kg, po) or theo...

The effect of endogenous luteinizing hormone-releasing hormone (LHRH) on the proliferation induced by concanavalin A (Con A) in rat fetal thymocytes was studied. A selective antagonist (2 microg per fetus) or antibodies to LHRH (20 microl per fetus) were injected in utero into 20-day-old rat fetuses, and this resulted in a two- or fivefold decrease in the Con A-induced proliferation of thymocyt...