Effects of aspirin & simvastatin and aspirin, simvastatin, & lipoic acid on heme oxygenase-1 in healthy human subjects
Effects of aspirin & simvastatin and aspirin, simvastatin, & lipoic acid on heme oxygenase-1 in healthy human subjects
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DOI:
10.1111/nmo.12404
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发表时间:
2014-10-01
影响因子:
3.5
通讯作者:
Zinsmeister, Alan R.
中科院分区:
文献类型:
--
作者:
Bharucha, Adil E.;Choi, Kyoung Moo;Zinsmeister, Alan R.
Background Heme oxygenase 1 (HO-1) degrades heme and protects against oxidative stress. In vitro and animal models suggest that HO-1 is beneficial in several diseases (e. g., postoperative ileus, gastroparesis, acute pancreatitis, and colitis). However, the only drugs (i. e., hemin and heme arginate) which pharmacologically upregulate HO-1 in humans are expensive and can only be administered intravenously. Our aims were to compare the effects of placebo, aspirin, and simvastatin alone, and with a-lipoic acid, on HO-1 protein concentration and activity in humans. Methods This randomized, double-blind, placebo-controlled study compared the effects of three oral regimens administered for 7 days, i. e., placebo; aspirin (325 mg twice daily) and simvastatin (40 mg twice daily); aspirin, simvastatin, and the sodium salt of R-a-lipoic acid (NaRLA, 600 mg three times daily) on markers of HO-1 activation (i. e., plasma HO-1 protein concentration and venous monocyte HO-1 protein activity) in 18 healthy subjects (14 females). Markers of HO-1 activation were evaluated at baseline, days 2, and 7. Key Results Baseline HO-1 protein concentrations and activity were similar among the three groups. Compared to placebo, aspirin and simvastatin combined, or together with NaRLA did not affect HO-1 protein concentration or activity at 2 or 7 days. HO-1 protein concentrations and activity were correlated on day 7 (r = 0.75, p = 0.0004) but not at baseline and on day 2. Conclusions & Inferences At therapeutic doses, aspirin, simvastatin, and a-lipoic acid do not increase plasma HO-1 protein concentration or venous monocyte HO-1 activity in healthy humans.