Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/ijms241310942
Keywords
JZL195; endocannabinoid; FAAH; MAGL; hypertension; spontaneously hypertensive rats; area under the curve
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Enhancement of endocannabinoid tone may benefit hypertension. JZL195, a dual inhibitor of fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL), exhibited weak hypotensive and bradycardic effects in spontaneously hypertensive rats (SHR) but not in normotensive Wistar Kyoto rats (WKY). Chronic administration of JZL195 effectively prevented the progression of hypertension without tolerance, while also slightly reducing heart rate in WKY and preventing weight gain in both groups.
The enhancement of the endocannabinoid tone might have a beneficial influence on hypertension. Polypharmacology proposes multi-target-directed ligands (MTDLs) as potential therapeutic agents for the treatment of complex diseases. In the present paper, we studied JZL195, a dual inhibitor of the two major endocannabinoid-degrading enzymes, fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MAGL), in spontaneously hypertensive rats (SHR) and normotensive Wistar Kyoto rats (WKY). Hemodynamic parameters were assessed in conscious animals via radiotelemetry and tail-cuff methods and then evaluated by the area under the curve (AUC). Single administration of JZL195 induced dose-dependent weak hypotensive and bradycardic responses in SHR but not in WKY. Similarly, its chronic application revealed only a slight hypotensive potential which, however, effectively prevented the progression of hypertension and did not undergo tolerance. In addition, multiple JZL195 administrations slightly decreased heart rate only in WKY and prevented the gradual weight gain in both groups. JZL195 did not affect organ weights, blood glucose level, rectal temperature and plasma oxidative stress markers. In conclusion, chronic dual FAAH/MAGL inhibition prevents the progression of hypertension in SHR without affecting some basal functions of the body. In addition, our study clearly proves the suitability of AUC for the evaluation of weak blood pressure changes.
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