Effects of long-term pravastatin treatment on serum and urinary monocyte chemoattractant protein-1 levels and renal function in type 2 diabetic patients with normoalbuminuria.
To explore the renoprotective and anti-inflammatory effects of pravastatin, we analyzed the changes in renal function and urinary monocyte chemoattractant protein-1 (MCP-1) level as a renal tubulointerstitial inflammatory biomarker and serum MCP-1 level as a systemic inflammatory biomarker following the introduction of treatment with 10 mg/day of pravastatin in 10 hyperlipidemic type 2 diabetic patients with normoalbuminuria. Twelve months of the pravastatin treatment did not affect urinary levels of albumin, transferrin, N-acetylglucosaminidase, or MCP-1 in the hyperlipidemic diabetic patients, whereas the treatment significantly reduced serum levels of MCP-1 in the patients. The pravastatin treatment effectively lowered low-density lipoprotein cholesterol (LDL-C) levels in the hyperlipidemic diabetic patients to levels nearly to those in 11 non-hyperlipidemic type 2 diabetic patients with normoalbuminuria. Interestingly, serum MCP-1 levels were significantly lower in the hyperlipidemic patients treated with pravastatin than in the non-hyperlipidemic patients. No significant correlation was observed between serum LDL-C and MCP-1 levels in all the data in the hyperlipidemic patients before and after the pravastatin treatment and in the non-hyperlipidemic patients. These results collectively indicate that pravastatin may ameliorate systemic vascular inflammation rather than local renal inflammation in hyperlipidemic type 2 diabetic patients with normoalbuminuria, independent of its cholesterol-lowering effects.
Fujita
Hiroki
H
Division of Endocrinology, Metabolism and Geriatric Medicine, Department of Internal Medicine, Akita University School of Medicine, Akita, Japan. hirofuji@gipc.akita-u.ac.jp
Koshimura
Jun
J
Sato
Takehiro
T
Miura
Takeshi
T
Sasaki
Hiroshi
H
Morii
Tsukasa
T
Narita
Takuma
T
Kakei
Masafumi
M
Ito
Seiki
S
Yamada
Yuichiro
Y
D000368:Aged; D000419:Albuminuria / Q000652:urine; D018932:Chemokine CCL2 / Q000097:blood* / Q000652:urine*; D008078:Cholesterol, LDL / Q000097:blood; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology* / Q000652:urine; D005260:Female; D006801:Humans; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors / Q000627:therapeutic use*; D007668:Kidney / Q000187:drug effects* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D017035:Pravastatin / Q000627:therapeutic use*
D018932:Chemokine CCL2; D008078:Cholesterol, LDL; D019161:Hydroxymethylglutaryl-CoA Reductase Inhibitors; D017035:Pravastatin