Regular ArticleSEMOTIADIL (cas 116476-13-2), a new calcium antagonist, is a very potent inhibitor of LDL-oxidation
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Add time:08/22/2019 Source:sciencedirect.com
The influence of semotiadil, a novel benzothiazine calcium antagonist on in-vitro copper-, 2,2àzo-bis-(2,4 dimethylvaleronitrile)[AMVN]-, and 2,2àzo-bis-(2-amidinopropane) [AAPH]-induced low-density lipoprotein (LDL) oxidation was assessed. The following parameters were measured: lag-time of oxidation, maximal rate of oxidation, dienes formed through continuous monitoring of developing conjugated dienes, thiobarbituric acid reactive substances, isoprostane(8-iso-PGF2α)-generation and relative electrophoretic mobility. The effect was compared with nifedipine, amlodipine and diltiazem. Besides the influence on isoprostane (8-iso-PGF2α)-generation where nifedipine was equipotent with semotiadil at 10−3M, semotiadil demonstrated a strong and significant effect in attenuating the indicated indices of LDL-oxidation, in particular, dose-dependently (10−3M to 10−7M). These results indicate that semotiadil may have the strongest antioxidant activity on LDL among the calcium antagonists examined.
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