نتایج جستجو برای: newborn lamb

تعداد نتایج: 59159  

Journal: :Circulation research 1990
G F Van Hare J A Hawkins K G Schmidt A M Rudolph

We developed a preparation in which the mean arterial pressure of the newborn lamb is varied with little change in left ventricular preload. Seven lambs underwent balloon atrial septostomy and were instrumented with vascular catheters, an electromagnetic flow transducer on the aorta, and a balloon occluder on the aorta. Four different preload conditions were established by volume infusion or wi...

Journal: :Journal of pediatric gastroenterology and nutrition 2012
Djamal Djeddi Nathalie Samson Nadia Boudaa Jean-Paul Praud

We aimed to determine whether the newborn lamb at term is a valid model for studying gastroesophageal reflux. Seven bottle-fed lambs, ages 2 to 3 days, underwent esophageal multichannel intraluminal impedance-pH monitoring (MII-pH). A total of 196 reflux episodes were recorded, including 73% alkaline and 27% weakly acidic. No acid refluxes were observed. Median bolus clearance time was 4  secon...

Journal: :The Journal of pharmacology and experimental therapeutics 2003
P Veng-Pedersen S Chapel N H Al-Huniti R L Schmidt E M Sedars R J Hohl J A Widness

Strong evidence indicates that erythropoietin (Epo) is eliminated via Epo receptors (EpoR). Epo receptors may be classified as erythropoietic receptors that are largely located on erythroid progenitor cells in the bone marrow (BM) and nonerythropoietic receptors present in most tissues. Epo's elimination kinetics was studied using a very sensitive tracer interaction method (TIM) before and afte...

Journal: :Australian Journal of Biological Sciences 1985

Journal: :Journal of Pediatric Gastroenterology & Nutrition 2012

Journal: :American journal of physiology. Lung cellular and molecular physiology 2000
T A Parker T D le Cras J P Kinsella S H Abman

Endothelial nitric oxide (NO) synthase (eNOS) produces NO, which contributes to vascular reactivity in the fetal lung. Pulmonary vasoreactivity develops during late gestation in the ovine fetal lung, during the period of rapid capillary and alveolar growth. Although eNOS expression peaks near birth in the fetal rat, lung capillary and distal air space development occur much later than in the fe...

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