OBJECTIVE To determine the effect of estradiol treatment on serum corticosterone levels in Oophorectomized (OVX) female Sprague Dawley rats exposed to chronic restraint stress. STUDY DESIGN Experimental study. PLACE AND DURATION OF STUDY Department of Physiology, Army Medical College, Rawalpindi and National Institute of Health, Islamabad, from January to December 2008. METHODOLOGY A tota...

Since the brain structure of neonatal rats was not fully formed during first 4 days, it cannot be detected using ultrasound. The objective this study to investigate use ultrasound detect changes in normal coronal and determine puncture depth location cortex, hippocampus, lateral ventricle, striatum newborn Sprague–Dawley (SD) 5−15 days. animal placed a prone position. specific positions were me...

The beneficial immunomodulation effects of a biological response modifier glucan (BRMG) produced by two strains Aureobasidium pullulans, AFO-202 and N-163, have already been reported. Herein, we compared their efficacy on immune-inflammatory parameters in Sprague Dawley (SD) rats. This study was performed four groups healthy SD rats, n=6 each group: Group 1, euthanised Day 0 for baseline values...

The effect of acute arterial hypertension on proximal tubular fluid reabsorption was investigated in Sprague-Dawley rats and spontaneously hypertensive rats (SHR) by measuring proximal tubular flow with a nonobstructive optical method. Under control conditions, spontaneous tubular flow was oscillating at 0.02-0.03 Hz in Sprague-Dawley rats. Acute hypertension induced an immediate increase of me...

Phase II detoxifying enzymes like NAD(P)H (quinone acceptor)oxidoreductase1 (NQO1), glutathione S-transferases (GST), and UDP-glucuronyltransferases (UGT) may play an important role in preventing carcinogen-induced cancers. Inducers of these enzymes have been shown to inhibit carcinogen-induced colon tumors in rat and mouse models. However, it has not been clearly demonstrated that NQO1 contrib...

11 beta-Hydroxysteroid dehydrogenase (11 beta-HSD) modulates the access of corticosteroids to their receptors and plays an important role in controlling blood pressure. We determined 11 beta-HSD activity and mRNA levels in the mesenteric arteries of genetically hypertensive rats, the Dahl salt-sensitive hypertensive rat, and compared them with Dahl salt-resistant and Sprague-Dawley rats. 11 bet...

The effect of acute arterial hypertension on proximal tubular fluid reabsorption was investigated in Sprague-Dawley rats and spontaneously hypertensive rats (SHR) by measuring proximal tubular flow with a nonobstructive optical method. Under control conditions, spontaneous tubular flow was oscillating at 0.02-0.03 Hz in Sprague-Dawley rats. Acute hypertension induced an immediate increase of me...

Rates of oxalate degradation by mixed bacterial populations in cecal contents from wild rats ranged from 2.5 to 20.6 mumol/g (dry weight) per h. The oxalate-degrading activity in cecal contents from three strains of laboratory rats (Long-Evans, Wistar, and Sprague-Dawley) from four commercial breeders was generally lower, ranging from 1.8 to 3.5 mumol/g (dry weight) of cecal contents per h. Thi...