Results 311 to 320 of about 134,704 (353)
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Protein handling in kidney tubules
Nature Reviews NephrologyThe kidney proximal tubule reabsorbs and degrades filtered plasma proteins to reclaim valuable nutrients and maintain body homeostasis. Defects in this process result in proteinuria, one of the most frequently used biomarkers of kidney disease. Filtered proteins enter proximal tubules via receptor-mediated endocytosis and are processed within a highly ...
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1958
Publisher Summary During the past few years kidney tubules have been submitted to several analyses with the aid of the electron microscope; analyses that provide information on the multitude of uncertainties associated with renal structures. The architecture of all the cells of the nephron is especially well adapted for the passage of fluid, a ...
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Publisher Summary During the past few years kidney tubules have been submitted to several analyses with the aid of the electron microscope; analyses that provide information on the multitude of uncertainties associated with renal structures. The architecture of all the cells of the nephron is especially well adapted for the passage of fluid, a ...
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Primary Kidney Proximal Tubule Cells
2004Primary rabbit kidney epithelial cell cultures can be obtained that express renal proximal tubule functions. Toward these ends, renal proximal tubules are purified from the rabbit kidney by the method of Brendel and Meezan. To summarize, each kidney is perfused with iron oxide, which becomes associated with glomeruli.
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[18] Metabolism of isolated kidney tubule segments
1990Publisher Summary This chapter presents a short review on the isolation and analysis of defined nephron segments, giving some examples of the determination of enzyme activities and metabolic pathways in them. The advantages and disadvantages of the different techniques are also discussed. To study metabolite concentrations, enzyme activities, hormone
Walter G. Guder, Gabriele Wirthensohn
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The electrical profile of the distal tubule in triturus kidney
Pfl�gers Archiv European Journal of Physiology, 1982The transepithelial potential difference (VTE) and transepithelial resistance (RTE) were determined along the length of the distal tubule of the amphibian Triturus alpestris. The site of impalements was determined at the end of each experiment by latex injection and microdissection.
J. Teulon, T. Anagnostopoulos
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Inhibition of kidney tubule induction by charged polymers
Cell Differentiation, 1978Charged polymers, known to alter cell surface characteristics, reversibly inhibit the intercellular communication required in kidney tubule induction. This effect seems to be a function of their charge density. It is suggested that this effect is due to the formation of a molecular barrier between the interacting cell surfaces.
Stig Nordling +2 more
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A Kallikrein-Specific Inhibitor in Rat Kidney Tubules
Hoppe-Seyler´s Zeitschrift für physiologische Chemie, 1976A kallikrein inhibitor was found in tubules of the rat kidney and purified by chromatography on Sephadex G-100. The molecular weight of the inhibitor, estimated by gel filtration and dodecylsulfate electrophoresis, is about 4700. It inhibits the following kallikreins: porcine submanidbular and pancreatic kallikrein, rat kidney and urine kallikrein, and
Reinhard Geiger, Klaus Mann
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SEM of the proximal tubule of the adult rabbit kidney
The Anatomical Record, 1978AbstractThe present study utilizes the scanning electron microscope (SEM) to reveal the surface morphology of proximal tubular cells and the parietal cells of Bowman's capsule of the adult rabbit nephron. To facilitate the examination of the basal surface of these cells, proximal tubules were dissected free and treated with collagenase to remove the ...
Don A. Hay +2 more
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Phenylalanine hydroxylation in isolated rat kidney tubules
International Journal of Biochemistry, 19901. Phenylalanine hydroxylation has been demonstrated to occur in isolated rat kidney tubules under physiological conditions. 2. The hydroxylation flux response is hyperbolic with apparent Km and Vmax values of ca 85 microM phenylalanine and 49 nmol tyrosine formed/mg dry wt per hr respectively. 3.
Anne K. Green +3 more
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A road to kidney tubules via the Wnt pathway
Pediatric Nephrology, 2000Classical in vitro studies indicate that tubule induction in the kidney mesenchyme is mediated by cell-cell contacts between the inducer tissue and the metanephric mesenchyme. Induction is completed within the first 24 h, after which tubules will form because of stimulated cell proliferation, migration, and cell adhesion.
Marika S. Uusitalo, Seppo Vainio
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