collecting tubule
A functional comparison of the cortical collecting tubule and the distal convoluted tubule
... convoluted tubule (DCT) and the cortical collecting tubule (CCT) were examined using the technique in which isolated segments of rabbit tubules were perfused in ...
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Regulation of Cl /HCO3 exchange in the rabbit cortical collecting tubule
... Cl-/HCO3- exchange is present in all three cell types of the rabbit cortical collecting tubule, yet may mediate a different function in each cell type. The purpose of this study was to characterize further ...
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Bradykinin induced changes in phosphatidyl inositol turnover in cultured rabbit papillary collecting tubule cells
... Rabbit renal papillary collecting tubule cells were isolated as a homogeneous population and grown in primary culture. These cells were maintained in fully defined medium to inhibit fibroblast overgrowth ...
8
Vasopressin V1 receptors on the principal cells of the rabbit cortical collecting tubule Stimulation of cytosolic free calcium and inositol phosphate production via coupling to a pertussis toxin substrate
... the collecting tubules respond to AVP with an increase in ...cortical collecting tubule possess two distinct receptor systems for vasopressin, the well-known V2 receptor ...
7
A1 and A2 adenosine receptors in rabbit cortical collecting tubule cells Modulation of hormone stimulated cAMP
... cortical collecting tubule (RCCT) cells, isolated by immunodissection, were treated with 5'-N-ethylcarboxamideadenosine (NECA), N6-cyclohexyladenosine (CHA), and R-N6-phenylisopropyladenosine ...
6
Transcellular water flow modulates water channel exocytosis and endocytosis in kidney collecting tubule
... kidney collecting tubule involves the exocytic-endocytic trafficking of vesicles containing water channels between an intracellular compartment and apical plasma ...cortical collecting tubule ...
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Secondary effect of aldosterone on Na KATPase activity in the rabbit cortical collecting tubule
... glucocorticoid vs. mineralocorticoid effects on this enzyme within the multitude of cells that comprise the heterogeneous mammalian nephron. This study attempts to circumvent this problem by monitoring Na-K ATPase ...
9
Dietary Modulation of Active Potassium Secretion in the Cortical Collecting Tubule of Adrenalectomized Rabbits
... mineralocorticoid. The present in vitro microperfusion studies examine what role the cortical collecting tubule might play in this process. All studies were performed on tubules harvested from ...
9
Interactions of lysyl bradykinin and antidiuretic hormone in the rabbit cortical collecting tubule
... Lp. Collecting tubules which were exposed for 1 h to bath lysyl-bradykinin (10(- 9)M) had a significantly diminished subsequent Lp in response to ADH (P less than ...cortical collecting tubule to ...
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Ultrastructure of rat initial collecting tubule Effect of adrenal corticosteroid treatment
... This study examines the effects of adrenalectomy and physiological replacement of mineralocorticoids and glucocorticoids on the cellular ultrastructure of the rat initial collecting tubule (late distal ...
9
Study of Chloride Transport Across the Rabbit Cortical Collecting Tubule
... the collecting tubule may be involved in the regulation of extracellular fluid ...cortical collecting tubule inasmuch as chloride ion would ultimately affect extracellular fluid ...
7
Inhibition of cortical collecting tubule chloride transport by organic acids
... Cl self-exchange by the rabbit cortical collecting tubule (CCT) occurs via an apical anion exchanger in series with a basolateral Cl conductance. We studied the effects of organic acids on CCT Cl ...
9
Regulation of collecting tubule adenosine triphosphatases by aldosterone and potassium
... metabolic acidosis of aldosterone deficiency in which hypoaldosteronism and hyperkalemia are paired. The present study also demonstrated that aldosterone plays the major role in controlling Na/K-ATPase activity in ...
9
Inhibition of sodium transport by prostaglandin E2 across the isolated, perfused rabbit collecting tubule
... This study was designed to examine whether prostaglandin E2 can directly affect sodium transport across isolated perfused rabbit renal collecting tubules. Changes in transepithelial potential and isotopic sodium ...
7
Transport of ammonia in the rabbit cortical collecting tubule
... cortical collecting tubules, proximal convoluted tubules exhibited a much higher apparent permeability to ...convoluted tubule and in the cortical collecting ...the collecting tubules; this ...
9
Regulation of intracellular pH in the rabbit cortical collecting tubule
... The cortical collecting tubule (CCT) is an important nephron segment for Na+, K+, water and acid-base transport. Differential loading characteristics of the pH sensitive dye 2',7'-bis- ...
9
Effects of Ethacrynic Acid on the Isolated Collecting Tubule
... The base-line water permeability of the collecting tubule was not affected when the drug (10 −4 M) alone was added to the bathing medium. Vasopressin alone in the bathing medium (2, 5 µU/ml) elicited a ...
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Characterization of acidification in the cortical and medullary collecting tubule of the rabbit
... decreases in both PD, from -11.6 to 0.4 mV (P less than 0.005), and JTCO2, from +10.8 to +4.2 pmol/mm per min (P less than 0.025). This substitution had no effect on medullary collecting tubules. When control flux ...
11
Inhibition by lithium of the hydroosmotic action of vasopressin in the isolated perfused cortical collecting tubule of the rabbit
... the collecting duct ...cortical collecting tubules (CCT) was measured in the presence and absence of arginine-8- vasopressin (AVP), or 8-bromo (Br) cyclic AMP (cAMP) and/or lithium chloride (Li 10 ...
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A micropuncture study of collecting tubule function in rats with hereditary diabetes insipidus
... reabsorbed (× 100) by the terminal collecting duct was 1.58% ±0.32. In antidiuresis the TF/P osm of loop fluid was 2.65 ±0.109; of fluid from the proximal collecting duct, 2.20 ±0.093; and from the tip, ...
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