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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Antihypertensive activity of SCH 31846, a non-sulfhydryl angiotensin-converting enzyme inhibitor.

The antihypertensive, hemodynamic, and autonomic actions of SCH 31846, a new, potent and long-acting non-sulfhydryl angiotensin-converting enzyme (ACE) inhibitor, were evaluated in several experimental preparations. Oral administration of 0.3-3 mg/kg caused dose-related decreases in blood pressure in spontaneously hypertensive rats (SHRs). Pretreatment with a diuretic augmented the maximum hypotensive response attainable. Single doses (3 mg/kg) of SCH 31846 reduced pressure for over 24 h. Five-day treatment lowered pressure progressively. Single oral doses of 3.2 and 10 mg/kg reduced blood pressure of conscious normotensive dogs. Diuretic pretreatment also enhanced the response. The antihypertensive action of SCH 31846 in SHRs was eliminated by nephrectomy, but not attenuated by indomethacin, indicating its dependency on renal renin but not on prostaglandin synthesis. Other studies using SHRs pointed to an absence of a central effect. SCH 31846 (1 mg/kg i.v.) decreased blood pressure and peripheral resistance of anesthetized dogs but did not alter cardiac output. Autonomic interactions were examined in normal and diuretic-pretreated SHRs and anesthetized dogs. SCH 31846 affected the response to sympathetic nerve stimulation and cardiovascular reflexes only minimally. It is concluded that SCH 31846 is a potent and long-lasting antihypertensive agent, the action of which is mediated, in all probability, by ACE inhibition.[1]


  1. Antihypertensive activity of SCH 31846, a non-sulfhydryl angiotensin-converting enzyme inhibitor. Baum, T., Sybertz, E.J., Watkins, R.W., Ahn, H.S., Nelson, S., Eynon, E., Vander Vliet, G., Pula, K.K., Sabin, C., Desiderio, D.M., Becker, F.T., Vemulapalli, S. J. Cardiovasc. Pharmacol. (1983) [Pubmed]
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