Estimation of Plasma Arginine Vasopressin Concentration Using Thirst Perception and Plasma Osmolality Values.

In human, thirst and antidiuretic hormone (ADH) are controlled by similar sensitive osmoregulatory mechanisms such that above a certain osmotic threshold (280-288 mOsm/kg H20) there is a linear relationship between the increase in plasma osmolality and increase in ADH and thirst. The purpose of this study was to estimate plasma arginine vasopressin (PAVP) using thirst perception (TP) and plasma osmolality (POSM) values before and at 60 minutes in control or euhydrate (group A, 0.0 ml/kg body weight of distilled water), hydrated (group B, 7.

The role of oropharnygeal receptors in thirst perception after dehydration and rehydration.

This study examined the effect of drinking and gargling on thirst perception (TP) in 33 young dehydrated female subjects (18-25 yrs), using the visual analogue scale (VAS). Group A subjects drank, while group B gargled the fluid provided - 0.0%, 0.

Thirst perception, plasma osmolality and estimated plasma arginine vasopressin concentration in dehydrated and oral saline loaded subjects.

Infusion of hypertonic saline produces an increase in thirst appreciation as well as increase in plasma Arginine Vasopressin (AVP) concentration, which may be estimated using thirst perception and/or plasma osmolality In this study, we examined the changes in thirst perception (TP), plasma osmolality (Posm) and plasma arginine vasopressin concentration (PAVP) as well as their relationships in dehydrated and oral saline loaded subjects. Forty (40) healthy subjects between the ages of 18 and 30 years were divided into 4 groups of 10 subjects (5 females and 5 males) each. Subjects in group A (dehydrated) were subjected to 18 hr fluid restriction, while those in B, C, and D orally ingested 7.

Thirst perception in dehydrated sickle cell disease patients in steady state.

Liberal fluid intake is one of the key management strategies in sickle cell anaemia [SCA] patients in steady state, but less work has been done on the desire of patients to drink water. Using the Visual Analogue Scale we studied thirst perception [TP] in 20 euhydrated SCA patients and 28 control [HbA] subjects, as well as during dehydration in 13 SCA patients and 9 HbA subjects. Serum and urine samples were collected and analyzed for Na, K ions, creatinine concentrations and haematocrit and specific gravity of urine were determined.