N. Lewis

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  • N. Lewis
  • 2014
Electrophysiology is at the basis of bio-electronic interaction. Excitable cells or tissues can communicate with electronics, either in experiments where the bio-signal is recorded and analyzed, or in experiments where the biological tissue is electrically stimulated. In the recording case, the action potentials of the bio-signal must be discriminated from(More)
Basolateral membranes were prepared from rat renal cortex by density gradient centrifugation. Their purity was confirmed by electron microscopy and by marker enzyme enrichment. The basolateral membrane preparation was shown to be derived predominantly from the proximal renal tubule by measurement of hormone-stimulated adenylate cyclase; marked stimulation(More)
3H-Angiotensin II binding was studied in rat renal proximal tubular basolateral membranes. The characteristics of binding were found to be consistent with a receptor for angiotensin II at this site. Effects of angiotensin II on cAMP production were studied in the basolateral membranes. Angiotensin II had no effect on the time course of basal or parathyroid(More)
1. Seventeen normal subjects were tilted on a tilt table and changes in blood pressure, heart rate and renal function were monitored in the absence of drug treatment; the same measurements were repeated during treatment with enalapril in eight of these subjects. 2. In the absence of drug, tilting of the whole body to the 45 degree head up position caused an(More)
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