Effect of aminophylline on amphotericin B nephrotoxicity in the dog. 1983

J F Gerkens, and H T Heidemann, and E K Jackson, and R A Branch

The polyene antibiotic, amphotericin B, causes an acute reduction in renal blood flow and glomerular filtration rate. The purpose of this study was to evaluate the hypothesis that the renal vascular response to amphotericin B can be blocked by aminophylline. Toward this end, the effect of aminophylline on the renal response to amphotericin B in sodium-depleted dogs was examined. In dogs not treated with aminophylline, amphotericin B (0.5 mg/kg infused i.v. over 20 min) significantly reduced renal blood flow and glomerular filtration by 49.9 +/- 12.6 ml/min (mean +/- S.E.M.) and 23.4 +/- 2.4 ml/min, respectively at 140 min after the amphotericin B infusion. In dogs treated with an intrarenal aminophylline infusion (5 mg/min), the renal blood flow and glomerular filtration rate response to amphotericin B did not differ from that of amphotericin B vehicle. We conclude that aminophylline inhibits the renal response to amphotericin B. The possible clinical relevance of these observations are discussed.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D007674 Kidney Diseases Pathological processes of the KIDNEY or its component tissues. Disease, Kidney,Diseases, Kidney,Kidney Disease
D007686 Kidney Tubules, Distal The portion of renal tubule that begins from the enlarged segment of the ascending limb of the LOOP OF HENLE. It reenters the KIDNEY CORTEX and forms the convoluted segments of the distal tubule. Distal Kidney Tubule,Distal Renal Tubule,Distal Kidney Tubules,Distal Renal Tubules,Kidney Tubule, Distal,Renal Tubule, Distal,Renal Tubules, Distal,Tubule, Distal Kidney,Tubule, Distal Renal,Tubules, Distal Kidney,Tubules, Distal Renal
D011956 Receptors, Cell Surface Cell surface proteins that bind signalling molecules external to the cell with high affinity and convert this extracellular event into one or more intracellular signals that alter the behavior of the target cell (From Alberts, Molecular Biology of the Cell, 2nd ed, pp693-5). Cell surface receptors, unlike enzymes, do not chemically alter their ligands. Cell Surface Receptor,Cell Surface Receptors,Hormone Receptors, Cell Surface,Receptors, Endogenous Substances,Cell Surface Hormone Receptors,Endogenous Substances Receptors,Receptor, Cell Surface,Surface Receptor, Cell
D011983 Receptors, Purinergic Cell surface proteins that bind PURINES with high affinity and trigger intracellular changes which influence the behavior of cells. The best characterized classes of purinergic receptors in mammals are the P1 receptors, which prefer ADENOSINE, and the P2 receptors, which prefer ATP or ADP. Methyladenine Receptors,Purine Receptors,Purinergic Receptor,Purinergic Receptors,Purinoceptors,Purine Receptor,Purinoceptor,Receptors, Methyladenine,Receptors, Purine,Receptor, Purine,Receptor, Purinergic
D012018 Reflex An involuntary movement or exercise of function in a part, excited in response to a stimulus applied to the periphery and transmitted to the brain or spinal cord.
D012079 Renal Circulation The circulation of the BLOOD through the vessels of the KIDNEY. Kidney Circulation,Renal Blood Flow,Circulation, Kidney,Circulation, Renal,Blood Flow, Renal,Flow, Renal Blood
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005246 Feedback A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system. Feedbacks
D005919 Glomerular Filtration Rate The volume of water filtered out of plasma through glomerular capillary walls into Bowman's capsules per unit of time. It is considered to be equivalent to INULIN clearance. Filtration Rate, Glomerular,Filtration Rates, Glomerular,Glomerular Filtration Rates,Rate, Glomerular Filtration,Rates, Glomerular Filtration

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