...C. Cousins; N. D. Jonker; L. M. Banks; S. Mohammadtaghi; M. J. Myers; A. M. Peters 1. The purpose of the study was to evaluate a non-invasive technique for measurement of microvascular permeability to a small hydrophilic solute. 2. The technique measures the clearance of 99m Tc-labelled...

... and had increased to 61 ml/min at day 54 ( P < 0.05). In the donors glomerular filtration rate had increased to 59 ml/min by day 5 ( P < 0.01) and was unchanged at day 54. 3. In the recipients lithium clearance was unchanged at day 5 and had increased to 23 ml/min at day 54 ( P < 0.01...

..., glomerulotubular balance appears to be disrupted, resulting in disproportionately high rates of proximal tubule sodium reabsorption. 18 9 1989 9 1 1990 16 3 1990 © 1990 The Biochemical Society and the Medical Research Society 1990 captopril clearance glomerulotubular balance lithium...

...Norman L. M. Wong; John H. Dirks 1. Twenty-four hour clearance studies were performed on three groups of rats to determine the hypomagnesaemic effect of cyclosporin. Group I rats served as controls, whereas group II rats received 10 mg of cyclosporin/kg and group III rats received 20 mg...

... of the basic amino acid lysine increased the urinary renin concentration, renin excretion rate and renin clearance two to three orders of magnitude, without affecting the plasma renin concentration. 4. This finding demonstrates that ultrafiltered renin is reabsorbed almost completely in the renal tubules...

...I. Ala-Houhala; A. Pasternack 1. The renal clearance of dextran and protein of different molecular sizes has been measured in 42 proteinuric patients with diabetes and glomerulonephritis. 2. In both patient groups the fractional low molecular (radii 3.0–3.6 nm) dextran clearances were significantly...

...R. W. E. Watts; N. Veall; P. Purkiss 1. We have measured the plasma oxalate concentration (P Ox ), urinary oxalate excretion (U Ox ), oxalate equilibrium distribution volume (ODV), oxalate metabolic pool size [(ODV) × (P Ox )], total plasma oxalate clearance (PC Ox ), renal (or dialyser) oxalate...

...J. A. C. Prenen; P. Boer; E. J. Dorhout Mees; H. J. Endeman; S. M. Spoor; H. Y. Oei 1. The renal clearance of [ 14 C]oxalate was assessed by the constant-infusion technique and single-injection technique (plasma sampling only: one-compartment and two-compartment model; plasma and urine sampling...

... calcaemia calcium clearance 1,25-dihydroxycholecalciferol kidney phosphataemia phosphate renal transport secondary hyperparathyroidism Clinical Science (1982) 62,503-508 503 Decrease in the tubular reabsorption of calcium with evidence for compensatory hyperparathyroidism in X-linked...

...) the product of this latter difference and the renal plasma flow as calculated from the clearance and extraction of inulin. 2. The renin secretion rates, as calculated by these two methods, were not significantly different ( P > 0·1) and were found to be highly correlated ( r = 0·943; P < 0·001). 1...

... and gives results comparable with those reported by other workers. 29 10 1975 © 1976 The Biochemical Society and the Medical Research Society 1976 blood flow bromosulphthalein clearance liver Clinical Science and Molecular Medicine (1976) 51, 141-1 50. Measurement of liver blood flow...