Results 301 to 310 of about 127,676 (332)
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Magnesium reabsorption in the kidney
American Journal of Physiology-Renal Physiology, 2023Mg2+ is essential for many cellular and physiological processes, including muscle contraction, neuronal activity, and metabolism. Consequently, the blood Mg2+ concentration is tightly regulated by balanced intestinal Mg2+ absorption, renal Mg2+ excretion, and Mg2+ storage in bone and soft tissues.
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The Lancet, 1972
Abstract A comparison of the methods of glucose determination in plasma and urine has shown that although the traditional copper-reduction method tends to overestimate glucose in plasma, compared with a specific glucose-oxidase method, the reverse is true in urine, where copper reduction greatly underestimates glucose compared with the hexokinase ...
G.A. Cheyne, J.M. Davison
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Abstract A comparison of the methods of glucose determination in plasma and urine has shown that although the traditional copper-reduction method tends to overestimate glucose in plasma, compared with a specific glucose-oxidase method, the reverse is true in urine, where copper reduction greatly underestimates glucose compared with the hexokinase ...
G.A. Cheyne, J.M. Davison
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Pharmacokinetics of Doxycycline Reabsorption
Journal of Pharmaceutical Sciences, 1980Two cyclic linear compartment models are proposed to investigate the reabsorption mechanism of doxycycline. In one model, reabsorption is considered to be continuous; in the other model, it is discontinuous. The continuous model, when fitted, leads to one real and two complex conjugate eigenvalues, corresponding to a regression equation consisting of a
Peter Veng Pedersen, Raymond Miller
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The assessment of phosphate reabsorption
Clinica Chimica Acta, 1969Abstract The relation for phosphate between the excretion rate (UV) and the plasma concentration [P] has been defined in fasting persons and after an infusion of phosphate when tubular reabsorption is maximal. The results demonstrate that the maximal tubular reabsorption capacity can be predicted with a nomogram from measurements of phosphate and ...
D B Morgan, P Fourman, O.L.M. Bijvoet
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Nephron heterogeneity of phosphate reabsorption
American Journal of Physiology-Renal Physiology, 1978Previous micropuncture studies in rats have demonstrated that fractional phosphate delivery (FDP%) from superficial distal nephrons is higher than in urine. To determine whether this apparent reabsorption could be accounted for by a lower FDP% from the deep nephrons, FDP% was determined in free-low micropuncture from deep nephrons (DN) (ascending limb
Franklyn G. Knox +2 more
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Regulation of proximal bicarbonate reabsorption
American Journal of Physiology-Renal Physiology, 1984Under free-flow conditions, alterations in acid-base and extracellular volume status affect absolute proximal bicarbonate reabsorption. Microperfusion studies have characterized the individual determinants of the active and passive components of proximal acidification.
M. G. Cogan, R. J. Alpern
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Renal reabsorption of amino acids
American Journal of Physiology-Legacy Content, 1962Using the method of stop flow analysis an attempt was made to localize the process of amino acid reabsorption in the nephron of the dog. Special attention was given to the group of basic amino acids and cystine believed to share a common tubular transport mechanism. The evidence obtained in this study points clearly to the proximal segment as the site
Jan Knapowski +4 more
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Hypouricemia by Defect in the Tubular Reabsorption
Archives of Internal Medicine, 1979Two patients with hypouricemia with high levels of uric acid in their urine were given pyrazinamide and probenecid. The uric acid clearance decreased to low or normal values after pyrazinamide administration. In both cases, probenecid produced a slight increment in the uric acid excretion.
Antonio Barrientos +3 more
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Remarks on the correction for reabsorption
Journal of Luminescence, 1971Abstract A formula for the reabsorption in the case when a plane parallel luminophor is excited and observed at angle to the frontal surface is reported.
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HYPERPARATHYROIDISM AND MAXIMAL GLUCOSE REABSORPTION
Acta Medica Scandinavica, 1971Abstract. The maximal tubular reabsorptive capacity for glucose (TmG) has been determined in patients admitted to the hospital for suspected hyperparathyroidism. One group consisted of 19 cases with proved hyperparathyroidism. The other group consisted of 14 cases with normal serum calcium concentration on repeated determinations, and in four of these
Göran K. Hansson +3 more
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