... to be of renal origin. Similar results were obtained in human GN. In order to identify the nephronic site of the enhanced tubular sodium reabsorption, two techniques were used: (1) study of TmG in normal and glomerulonephritic rats during a progressive saline loading, and (2) micropuncture studies of sodium...

...), phosphate infused dogs by the recollection micropuncture technique. Saline expansion reduced whole kidney phosphate reabsorption from a mean of 66.1 to 50.4% of filtered load. This response was entirely accounted for by an inhibition of proximal tubular phosphate reabsorption which fell from a mean of 35...

...Herbert Klein; Joachim Greven The effects of mannitol on the hemodynamics and excretory function of the kidney in control rats and in rats with acute renal failure (ARF), induced by glycerol, were studied using clearance, micropuncture and flowmeter techniques. In control animals, 20% mannitol...

...E.J. Weinman; H.O. Senekjian; T.F. Knight Clearance and micropuncture techniques were used to evaluate the effects of MK-196 on uric acid and electrolyte excretion by the rat kidney. The urinary excretion of sodium, uric acid, calcium and magnesium increased significantly following MK-196...

...S.L. Carney; N.L.M. Wong; J.H. Dirks Micropuncture and clearance studies were performed on normal untreated and polyuric lithium chloride treated rats (10–12 days). A persistent hypernatremic state quickly developed in the polyuric lithium treated rats during hydropenia resulting from an increased...

...Jules B. Puschett; Pedro C. Fernandez Micropuncture studies were performed in intact and thyroparathyroidectomized (TPTX) dogs to evaluate the relationship between the absolute level of serum ultrafilterable phosphate concentration (SUF P ) and proximal bicarbonate reabsorption. In both groups...