Urinary Acidification Tests
نویسندگان
چکیده
منابع مشابه
Proton ATPases and urinary acidification.
Acidification of the urine is mediated by vectorial H+ transport from cells at a number of sites in the kidney. A proton ATPase has been described that appears to mediate a significant proportion of this H+ transport. In particular, in proximal tubule and collecting duct, there is evidence both for the presence of transporter protein and for H+ transport with features that have been identified ...
متن کاملStudy of urinary acidification in patients with idiopathic hypocitraturia.
Hypocitraturia (HCit) is one of the most remarkable features of renal tubular acidosis, but an acidification defect is not seen in the majority of hypocitraturic patients, whose disease is denoted idiopathic hypocitraturia. In order to assess the integrity of urinary acidification mechanisms in hypocitraturic idiopathic calcium stone formers, we studied two groups of patients, hypocitraturic (H...
متن کاملDefect in urinary acidification induced in vitro by amphotericin B.
An experimental defect in urinary acidification was induced in the isolated turtle bladder by amphotericin B and the nature of the defect was examined. Net hydrogen ion secretion was little affected by amphotericin when passive electrochemical forces across the epithelium were held at a minimum in the short-circuited state under isohydric conditions. Hydrogen ion secretion against a gradient, h...
متن کاملEffect of thyroparathyroidectomy on urinary acidification in diabetic rats.
In previous studies we have shown stimulation of renal acid excretion in the proximal tubules of rats with diabetes of short duration, with no important alterations in glomerular hemodynamics; on the other hand, in thyroparathyroidectomized rats (TPTX model), a significant decrease in renal acid excretion, glomerular filtration rate (GFR) and renal plasma flow (RPF) was detected. Since importan...
متن کاملUrinary acidification: CO2 transport by the rabbit proximal straight tubule.
Proximal straight tubules from rabbit kidneys were perfused in vitro in order to study transport of bicarbonate. Total CO2 content was measured in perfused and collected tubule fluid, using microcalorimetry. When the initial perfusate and bath contained 25 mM bicarbonate, the concentration of total CO2 decreased in the collected tubule fluid, indicating net reabsorption of bicarbonate. When the...
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ژورنال
عنوان ژورنال: Korean Journal of Electrolyte Metabolism
سال: 2003
ISSN: 1598-8155
DOI: 10.5049/kjem.2003.1.1.37