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

The effects of different doses of atorvastatin on plasma endothelin-1 levels in type 2 diabetic patients with dyslipidemia.

We investigated the effects of three different daily doses (10 mg, 20 mg, and 40 mg) of atorvastatin, a relatively new and potent statin, on plasma endothelin (ET)-1 and highly sensitive C-reactive protein ( CRP) levels in type 2 diabetic subjects. Twenty-nine type 2 diabetic patients with dyslipidemia were enrolled and randomly assigned to receive atorvastatin orally at 10 mg ( A10; n = 10), 20 mg ( A20; n = 10), or 40 mg (A40; n = 9) daily for 12 weeks. Levels of plasma total cholesterol and low-density lipoprotein (LDL)-cholesterol (C) in all three studied groups were significantly decreased after treatment with atorvastatin for 12 weeks (all groups, P < 0.001). However, the greatest LDL-C lowering effect and the highest percentage of subjects achieving the National Cholesterol Education Program's Adult Treatment Panel III (NCEP-ATP III) LDL-C goal were observed in the A20 group. All diabetic subjects had a higher plasma ET-1 concentration ( A10, 1.02 +/- 0.37 pg/ml, mean +/- SD; A20, 1.17 +/- 0.55 pg/ml; and A40, 0.87 +/- 0.45 pg/ml) than that of age- and sex-matched normal control subjects (0.64 +/- 0.15 pg/ml; all groups, P < 0.001). Plasma ET-1 levels showed a borderline significant decrease at the end of study, by 22% in diabetic subjects treated with 10 mg atorvastatin (P = 0.05 compared with baseline), and by 30% in subjects treated with 20 mg atorvastatin (P = 0.06, compared with baseline). Paradoxically, the 40-mg dose of atorvastatin provided an increase of 2% in plasma ET-1 levels at the end of study, which is significantly different (P < 0.05) and marginally significant (P = 0.057) from the levels of the 10- and 20-mg doses, respectively. Similarly, although insignificantly, plasma concentrations of CRP also tended to decrease by 12% and 48%, and paradoxically increased by 18% in diabetic patients treated with 10 mg, 20 mg, and 40 mg atorvastatin, respectively. The clinical significance of these biphasic lipid-independent statin effects is unknown and the present study suggests that 20 mg atorvastatin may have the best benefits in treating diabetic patients with dyslipidemia.[1]


  1. The effects of different doses of atorvastatin on plasma endothelin-1 levels in type 2 diabetic patients with dyslipidemia. Lam, H.C., Chu, C.H., Wei, M.C., Keng, H.M., Lu, C.C., Sun, C.C., Lee, J.K., Chuang, M.J., Wang, M.C., Tai, M.H. Exp. Biol. Med. (Maywood) (2006) [Pubmed]
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