Renal handling of urate during water immersion in the nephrotic syndrome. 1984

G M Berlyne, and J Sutton, and C Brown, and C Caruso, and E A Friedman

Renal handling of urate was examined in 11 patients with nephrotic syndrome before, during, and after 4 h of water immersion up to the neck. Urinary urate excretion, urate clearance, and fractional excretion of urate all increased significantly during water immersion, and decreased in the hour following water immersion. During water immersion fractional excretion of urate rose to a maximum of 16 ml/ml of glomerular filtrate, and fell towards control levels on removal from the bath. It is concluded that either there is a decrease in proximal tubular urate reabsorption or secretion caused by water immersion. In contrast, diurnal control studies showed no significant change in fractional excretion of urate during the same period of the day. It is postulated that the increased fractional excretion of urate on water immersion is due to hypervolemia induced by the hydrostatic pressure of the water on the lower limbs and abdomen.

UI MeSH Term Description Entries
D007101 Immersion The placing of a body or a part thereof into a liquid. Submersion,Immersions,Submersions
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D007687 Kidney Tubules, Proximal The renal tubule portion that extends from the BOWMAN CAPSULE in the KIDNEY CORTEX into the KIDNEY MEDULLA. The proximal tubule consists of a convoluted proximal segment in the cortex, and a distal straight segment descending into the medulla where it forms the U-shaped LOOP OF HENLE. Proximal Kidney Tubule,Proximal Renal Tubule,Kidney Tubule, Proximal,Proximal Kidney Tubules,Proximal Renal Tubules,Renal Tubule, Proximal,Renal Tubules, Proximal,Tubule, Proximal Kidney,Tubule, Proximal Renal,Tubules, Proximal Kidney,Tubules, Proximal Renal
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009404 Nephrotic Syndrome A condition characterized by severe PROTEINURIA, greater than 3.5 g/day in an average adult. The substantial loss of protein in the urine results in complications such as HYPOPROTEINEMIA; generalized EDEMA; HYPERTENSION; and HYPERLIPIDEMIAS. Diseases associated with nephrotic syndrome generally cause chronic kidney dysfunction. Childhood Idiopathic Nephrotic Syndrome,Frequently Relapsing Nephrotic Syndrome,Multi-Drug Resistant Nephrotic Syndrome,Pediatric Idiopathic Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndrome,Steroid-Resistant Nephrotic Syndrome,Steroid-Sensitive Nephrotic Syndrome,Multi Drug Resistant Nephrotic Syndrome,Nephrotic Syndrome, Steroid-Dependent,Nephrotic Syndrome, Steroid-Resistant,Nephrotic Syndrome, Steroid-Sensitive,Nephrotic Syndromes,Steroid Dependent Nephrotic Syndrome,Steroid Resistant Nephrotic Syndrome,Steroid Sensitive Nephrotic Syndrome,Steroid-Dependent Nephrotic Syndromes,Steroid-Resistant Nephrotic Syndromes,Steroid-Sensitive Nephrotic Syndromes,Syndrome, Nephrotic,Syndrome, Steroid-Sensitive Nephrotic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006874 Hydrostatic Pressure The pressure due to the weight of fluid. Hydrostatic Pressures,Pressure, Hydrostatic,Pressures, Hydrostatic
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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