Renal metabolic response to acid-base changes
نویسندگان
چکیده
منابع مشابه
Renal metabolic response to acid-base changes. II. The early effects of metabolic acidosis on renal metabolism in the rat.
The early renal metabolic response was studied in rats made acidotic by oral feeding of ammonium chloride. 2 hr after feeding of ammonium chloride there was already significant acidosis. Urinary ammonia also increased after ammonium chloride ingestion and at 1(1/2) hr was significantly elevated. In vitro gluconeogenesis by renal cortical slices was increased at 2 hr and thereafter increased ste...
متن کاملRenal Physiology Acid-Base Homeostasis
Acid-base homeostasis and pH regulation are critical for both normal physiology and cell metabolism and function. The importance of this regulation is evidenced by a variety of physiologic derangements that occur when plasma pH is either high or low. The kidneys have the predominant role in regulating the systemic bicarbonate concentration and hence, the metabolic component of acid-base balance...
متن کاملMetabolic Response to Renal Compensatory Growth
Forty-eight hours after unilateral nephrectomy in young male Sprague-Dawley rats the concentrations of free methionine, alanine and tyrosine in renal cortical tissue were increased by 15-65 percent while the corresponding plasma concentrations decreased by 23-35 percent. The renal cortical concentrations of valine and leucine increased by 41 percent and 26 percent while plasma concentrations re...
متن کاملAltered Regulation of Renal Acid Base Transporters in Response to Ammonium Chloride Loading in Rats
The role of the kidney in combating metabolic acidosis has been a subject of considerable interest for many years. The present study was aimed to determine whether there is an altered regulation of renal acid base transporters in acute and chronic acid loading. Male Sprague-Dawley rats were used. Metabolic acidosis was induced by administration of NH(4)Cl for 2 days (acute) and for 7days (chron...
متن کاملLong-term regulation of renal Na-dependent cotransporters and ENaC: response to altered acid-base intake.
Increased systemic acid intake is associated with an increase in apical Na/H exchange in the renal proximal tubule mediated by the type 3 Na/H exchanger (NHE3). Because NHE3 mediates both proton secretion and Na absorption, increased NHE3 activity could inappropriately perturb Na balance unless there are compensatory changes in Na handling. In this study, we use semiquantitative immunoblotting ...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1970
ISSN: 0021-9738
DOI: 10.1172/jci106314