Management of Pneumatosis Intestinalis in a Pediatric Burn Patient.

Pneumatosis intestinalis is gas in the wall of the gastrointestinal tract. It is not well described in pediatric burn patients. The authors present the case of a 23-month-old girl who sustained 40% total body surface area deep-partial and full-thickness burns as well as a grade two inhalational injury.

Evaluation of a rat model of preeclampsia for HELLP syndrome characteristics.

Objective: To determine whether a rat model of preeclampsia includes features consistent with HELLP (hemolysis, elevated liver enzymes, low platelets) syndrome.

Methods: Preeclampsia was induced experimentally in timed-pregnant Sprague-Dawley rats using the reduced uterine perfusion pressure (RUPP) model. On day 14 of gestation, silver clips were placed around the aorta below the renal arteries and on the left and right uterine arcade at the ovarian artery.

Enhanced renal expression of preproendothelin mRNA during chronic angiotensin II hypertension.

The purpose of this study was to determine the role of endothelin in mediating the renal hemodynamic and arterial pressure changes observed during chronic ANG II-induced hypertension. ANG II (50 ng x kg(-1) x min(-1)) was chronically infused into the jugular vein by miniosmotic pump for 2 wk in male Sprague-Dawley rats with and without endothelin type A (ET(A))-receptor antagonist ABT-627 (5 mg x kg(-1) x day(-1)) pretreatment. Arterial pressure increased in ANG II rats compared with control rats (149 +/- 5 vs.

Role of endothelin B receptors in enhancing endothelium-dependent nitric oxide-mediated vascular relaxation during high salt diet.

High salt diet is often associated with increases in blood pressure, and the state of activation of endothelium-dependent vascular relaxation pathways is critical under these conditions. Basal activation of endothelial endothelin B (ET(B)) receptors by endothelin has been suggested to stimulate the release of factors that promote vascular relaxation. However, whether ET(B) receptors play a role in enhancing endothelium-dependent vascular relaxation during high salt diet is unclear.