title: [The reaction of the kidneys and acid-base and osmotic homeostasis to moderate physical exertion in patients with chronic pyelonephritis in the pre-azotemia period].
abstract: Bicycle ergometry (BE) up to submaximal heart rate provoked moderate metabolic acidosis in 52 patients with chronic pyelonephritis (CP) in preuremic stage. Similar changes in acid-base balance following BE were noted in 14 patients with chronic glomerulonephritis (CGN). BE in CP promoted the reduction in diuresis and fraction water excretion, elevation of creatinine concentration in the urine and its concentration index in the absence of alterations in sodium and osmotic homeostasis. In CGN BE induced similar changes but an insignificant decrease in diuresis and a significant rise in serum sodium concentrations, osmolality of the urine, osmotic concentration index, absolute reabsorption of osmotically free water, fall in excreted sodium fraction. It is suggested that the above differences in the response to exercise test in CP and CGN may relate to tubulointerstitial nature of CP.
authors.forename: I G
authors.initials: IG
authors.lastname: Kaiukov
authors.forename: I V
authors.initials: IV
authors.lastname: Dudoreva
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Nikogosian
authors.forename: A M
authors.initials: AM
authors.lastname: Esaian
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Ermakov
mesh_terms: D000136:Acid-Base Equilibrium; D000328:Adult; D002908:Chronic Disease; D015444:Exercise / Q000502:physiology*; D005080:Exercise Test; D005260:Female; D006706:Homeostasis; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D007677:Kidney Function Tests; D008297:Male; D009995:Osmosis; D011704:Pyelonephritis / Q000503:physiopathology*; D014511:Uremia / Q000503:physiopathology*
vernacular_title: Reaktsiia pochek, kislotno-osnovnogo i osmoticheskogo gomeostaza na umerennoe fizicheskoe napriazhenie u bol'nykh khronicheskim pielonefritom v doazotemicheskom periode.