eISSN: 2084-9869
ISSN: 1233-9687
Polish Journal of Pathology
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Original paper

Hepatic chemerin mRNA in morbidly obese patients with nonalcoholic fatty liver disease

Maciej Kajor, Michał Kukla, Marek Waluga, Łukasz Liszka, Michał Dyaczyński, Grzegorz Kowalski, Dominika Żądło, Agnieszka Berdowska, Mateusz Chapuła, Anna Kostrząb-Zdebel, Rafał J. Bułdak, Tomasz Sawczyn, Marek Hartleb

Pol J Pathol 2017; 68 (2): 117-127
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The aim of this study was to investigate hepatic chemerin mRNA, serum chemerin concentration, and immunohistochemical staining for chemerin and and chemokine receptor-like 1 (CMKLR1) in hepatic tissue in 56 morbidly obese women with nonalcoholic fatty liver disease (NAFLD) and to search for a relationship with metabolic and histopathological features.

Chemerin mRNA was assessed by quantitative real-time PCR, chemerin, and CMKLR1 immunohistochemical expression with specific antibodies, while serum chemerin concentration was assessed with commercially available enzyme-linked immunosorbent assays.

Serum chemerin concentration reached 874.1 ±234.6 ng/ml. There was no difference in serum chemerin levels between patients with BMI < 40 kg/m2 and ≥ 40 kg/m2. Serum chemerin concentration tended to be higher in patients with hepatocyte ballooning, greater extent of steatosis, and definite nonalcoholic steatohepatitis (NASH). Liver chemerin mRNA was observed in all included patients and was markedly, but insignificantly, higher in those with BMI ≥ 40 kg/m2, hepatocyte ballooning, greater extent of steatosis, and definite NASH.

Hepatic chemerin mRNA might be a predictor of hepatic steatosis, hepatocyte ballooning, and NAFLD activity score (NAS) but seemed not to be a primary driver regulating liver necroinflammatory activity and fibrosis. The lack of association between serum chemerin and hepatic chemerin mRNA may suggest that adipose tissue but not the liver is the main source of chemerin in morbidly obese women.

chemerin, chemokine receptor-like 1, adipokine, liver, nonalcoholic fatty liver disease

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