Systemic inflammation in nonalcoholic fatty liver disease is characterized by elevated levels of CCL2

被引:520
作者
Haukeland, John Willy [1 ]
Damas, Jan Kristian
Konopski, Zbigniew
Loberg, Else Marit
Haaland, Terese
Goverud, Ingeborg
Torjesen, Peter A.
Birkeland, Kare
Bjoro, Kristian
Aukrust, Pal
机构
[1] Univ Oslo, Fac Div, Aker Univ Hosp, Oslo, Norway
[2] Aker Univ Hosp, Dept Gastroenterol, Oslo, Norway
[3] Aker Univ Hosp, Hormone Lab, Oslo, Norway
[4] Aker Univ Hosp, Dept Endocrinol, Oslo, Norway
[5] Univ Oslo, Ulleval Hosp, Dept Pathol, Oslo, Norway
[6] Univ Oslo, Rikshosp, Res Inst Internal Med, N-0027 Oslo, Norway
[7] Univ Oslo, Rikshosp, Sect Hepatol & Gastroenterol, N-0027 Oslo, Norway
[8] Univ Oslo, Rikshosp, Sect Clin Immunol & Infect Dis, Dept Med, N-0027 Oslo, Norway
关键词
adipocytokines; chemokines; cytokines; fatty liver; hepatitis; inflammation; nonalcoholic;
D O I
10.1016/j.jhep.2006.02.011
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background/Aims: To elucidate the role of systemic inflammation in nonalcoholic fatty liver disease (NAFLD). Methods: Serum samples in 47 patients with histologically verified NAFLD (22 with simple steatosis and 25 with nonalcoholic steatohepatitis [NASH]), and in 30 age-, sex- and ethnicity-matched healthy controls, were assessed for (i) general markers of inflammation (C-reactive protein [CRP], tumor necrosis factor [TNF]-alpha, and interleukin [IL]-6), (ii) chemokines (CC-chemokine ligand [CCL] 2/monocyte chemoattractant protein [MCP]-1, CCL19 and CCL21), (iii) adipocytokines related to insulin resistance and inflammation (adiponectin and leptin) and (iv) a marker of oxidative stress (8-isoprostane-F2 alpha). Results: Serum levels of several inflammatory cytokines were increased in NAFLD as compared to controls, and IL-6 (P=0.017), CCL2/MCP-1 (P=0.008) and CCL19 (P=0.001), but not CRP (P=0.199), remained elevated also after correction for sex, body mass index (BMI) and age. Comparing NASH with simple steatosis, levels of TNF-alpha (P = 0.024) and CCL2/MCP-1 (P = 0.012) were elevated and adiponectin (in women) (P=0.001) were decreased also after adjustment for sex, BMI and presence of the metabolic syndrome. Conclusions: Our results indicate that patients with NAFLD are characterized by a low-grade systemic inflammation. The high CCL2/MCP-1 levels in NASH might be of importance for the conversion from simple steatosis to NASH. (c) 2006 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1167 / 1174
页数:8
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