نتایج جستجو برای: osmolality
تعداد نتایج: 3419 فیلتر نتایج به سال:
OBJECTIVES To assess which osmolarity equation best predicts directly measured serum/plasma osmolality and whether its use could add value to routine blood test results through screening for dehydration in older people. DESIGN Diagnostic accuracy study. PARTICIPANTS Older people (≥65 years) in 5 cohorts: Dietary Strategies for Healthy Ageing in Europe (NU-AGE, living in the community), Dehy...
In adults, hyperosmolality stimulates central osmoreceptors, resulting in arginine vasopressin (AVP) secretion. Near-term fetal sheep have also developed mechanisms to respond to intravascular hypertonicity with stimulation of in utero AVP release. However, prior studies demonstrating fetal AVP secretion have utilized plasma tonicity changes greater than those required for adult osmotically ind...
We divised a method to determine tissue osmolality in intact beating hearts. After occlusion of the left anterior descending coronary artery (LAD) of isolated porcine hearts, tissue osmolality in the ischemic myocardium increased within 50 minutes by about 40 mOsm/kg. This rise in osmolality could be accounted for by metabolic processes, notably the conversion of glycogen into lactate, and the ...
The purpose of this study was to determine if plasma osmolality alters baroreflex control of sympathetic activity when controlling for a change in intravascular volume; we hypothesized that baroreflex control of sympathetic activity would be greater during a hyperosmotic stimulus compared with an isoosmotic stimulus when intravascular volume expansion was matched. Seven healthy subjects (25 +/-...
Infusion of 5-20% glucose, 1.8-3.6% NaCl, 20% methylglucose, 20% fructose, or 5-10% solutions of various amino acids (10 ml x kg(-1)) into the duodenum induced dose-dependent thermogenesis in urethane-anaesthetized rats. In contrast, infusion of 0.9% NaCl, distilled water, or safflower oil had no effect on the metabolic rate. Infusion of 7.2% urea induced a small and transient increase in the m...
total abstention from food and water from sunrise to sunset during the month of ramadan, is practiced by hundreds of millions of muslims throughout the world. this pattern of fasting during ramadan is different from the usual fasting as people are allowed to eat and drink between sunset and dawn but not after dawn. the amount and type of food (rich in protein, fat and sugar) eaten during the n...
osmolality is decreased from 1,650 to 305 mosM. Incubation of slices in Ca2+-free media containing 2 mM EGTA largely abolished this action of osmolality on cAMP, whereas exclusion of Mg2+ or K+ from the incubation media was without effect. Addition of Ca21 to Ca2+-deprived inner medulla incubated at 750 mosM (175 mM Na+, 380 mM urea) significantly increased tissue cAMP and media prostaglandin (...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید