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Showing 1 to 20 of 47 for “"plasma volume"”.
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Plasma Volume and Albumin mRNA Expression in Exercise Trained Rats
… Exercise-induced plasma volume (PV) expansion is typically associated with an increase in plasma albumin content. Increased hepatic albumin synthesis, a transcriptionally regulated process, is thought to contribute to the increase in albumin content. …
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Plasma Volume Hematocrit (PVH): “Big Data” Applied to Physiology Enabled by a New Algorithm
… is taken as two components, red blood cells and plasma, both of which cause elastic emission (from Mie and Rayleigh scattering) and inelastic emission (from fluorescence and Raman emission). The algorithm describes the linear dependence of the volume fractions of both red blood cells and plasma …
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Effect of Increase and Decrease In Erythrocyte Volume Upon Plasma Volume and Total Blood Volume
… to know if this were a true anemia or if plasma volume shifts occurred which gave a picture of anemia while it did not actually exist. It is the purpose of this paper to determine that factor and to further test it by the study of plasma volume changes in dogs made polycythemic by the …
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Blood and Plasma Volume Determinations With the Evans Blue Dye (T-1824) Method: a Clinical Investigation With Special Reference to the Blood and Plasma Volume Changes Following Transfusions, and in the Treatment of Cardiac Decompensation
… there is shown much interest in the red cell and plasma volumes in different clinical conditions. This paper represents, first, an investigation of the Evans Blue dye (T-1824) method of determining the blood volume; and, second, an application of this method in the study of the changes in the red …
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Aspects of sepsis/SIRS - An experimental study on fluid therapy, vitamin C and plasma volume in increased permeability
… oxygen radicals. This will result in leakage of plasma fluid to the interstitum with subsequent intravascular hypovolemia and potentially harmful tissue oedema. Restoration of plasma volume with intravenous fluids is a cornerstone in the treatment of SIRS, but the infused fluids would be expected …
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Effects of changes in plasma volume, osmolality and sodium levels on core temperature during prolonged exercise in heat
… were tested to study the effects of changes in plasma volume (PV), osmolality (OSM) and sodium (Na+) on core temperature (Tc) under three exercise-thermoregulatory stress conditions. The protocol consisted of 120 min of upright stationary cycling at 50% V02max under neutral (24° C, 50% RH) - …
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Electrical activity of single cells in the septal area of rats resulting from changes in plasma volume and osmolality
Thesis (M.A.)--Michigan State University. Department of Psychology, 1972
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ASPECTS OF FLUID THERAPY: An experimental study of the effects of systemic inflammation, microvascular permeability, blood pressure and plasma volume
Adequate circulating blood volume is a prerequisite for circulatory stability. Fluid therapy aims at correcting hypovolaemia, and is an important part of the haemodynamic management of perioperative and critically ill patients. The efficacy of plasma volume substitution largely depends on the …
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Low birthweight discrimination using maternal variables.
… (1973) have shown a relationship between plasma volume expansion in pregnancy and birthweight. Plasma volume has previously been studied but only in isolation from the other maternal factors or in small scale surveys. From 1967 to 1980, antenatal and birth records including a number of …
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The effect of dehydration and rehydration on physiology parameters associated with maximal rowing performance
… of 24 hours of dehydration on body weight, plasma volume and various urinary variables and compared the efficacy of drinking water and solutions of varying sodium chloride concentration in restoring plasma volume after dehydration; and secondly, the metabolic processes during performance in …
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Exercise Induced Hypervolemia: Role of Exercise Mode
… posture has been shown to limit exercise-induced plasma volume expansion. Differences in hydrostatic pressure gradients between the standing and seated position indicate that treadmill exercise might promote a greater plasma volume expansion than cycle ergometer exercise. To test this hypothesis …
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Renal Epithelial Sodium Channel (ENaC) Regulation of Pregnancy Mediated Hemodynamic Adaptations: Mechanistic Insights
… retention is required to provide an increase in plasma volume for the growing fetus. The mechanisms responsible for this Na retention are not clear. In the first study, we generated a renal tubule protein profile indicating α ENaC as the only sodium transport protein upregulated in mid and late …
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Tokamak burn phase energy optimization with volumetric and wall interaction effects
… and densities. The ion source rates and the plasma current can be varied to control the ion densities. The impurity concentration of the plasma can be controlled by incorporating a charged particle divertor. A dynamic model of the burn cycle of a Tokamak is used to investigate the ion …
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The effects of sodium chloride ingestion on fluid balance and body fluid distribution during exercise
… (100mEq/1) during exercise would expand the plasma volume when fluid was ingested at approximately half the rate at which it was being lost as sweat. Six male cyclists exercised for 90 minutes in the heat (32 ± 1 °C, 55 ± 5% RH) at 66 ± 1 % of VO₂ₘₐₓ while ingesting either no fluid CNF), …
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THE RELATIONSHIP BETWEEN AEROBIC TRAINING AND CARDIOVASCULAR RESPONSE TO EXERCISE
… 3 the effect of short-term training-induced plasma volume expansion on the cardiac and peripheral vascular capacity of untrained males (n=14) was examined. Impedance cardiography was used to examine stroke volume and cardiac output, whereas resting and peak blood flow were assessed using …
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The Microcirculation in Trauma and Sepsis
… changes is microvascular flow, permeability and plasma volume (PV) loss after experimental or surgical trauma and experimental sepsis. We evaluated the effect of blunt skeletal muscle trauma itself and thereafter treatment with prostacyclin (PGI2) on PV-loss, transcapillary escape rate (TER) of …
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The Effect of Ten Days of Heat Acclimation on Exercise Capacity during Acute Altitude Exposure (4350 m)
… at rest pre- and post-HA to estimate changes in plasma volume with HA. Heat acclimation was achieved, as indicated by a significantly lower post-exercise heart rate (p < 0.01) and rectal temperatures (p = 0.42) on the last versus the first day of HA. Heat acclimation did not alter plasma volume …
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On Brain Oedema
… laesa. Tumor, swelling, will increase the volume within the closed cranial vault, and may thereby raise the intracranial pressure to critical levels, affecting cerebral blood flow and oxygenation. In this thesis, brain oedema and its origins are investigated in experimental models of brain …
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Effect of sodium chloride supplementation on serum sodium concentration, cardiovascular function, and physical and cognitive performance
… g NaCl/d) resulted in a significant increase in plasma volume in healthy untrained males at rest (5.9±7.6 %) and during exercise at 60%VO₂peak (8.6±5.2 %) compared to PL. During NA, stroke volume was 10% higher during exercise vs. PL (139±27 vs. 126±24 ml/beat, respectively, p=0.004). Cardiac …
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