EXCLI journal · 2013
Changes of serum omentin-1 levels and relationship between omentin-1 and insulin resistance in chronic hepatitis C patients.
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Nassif Walaa Moustafa Hussein, Amin Ashraf Ismail, Hassan Zeinab Abdeltawab, Abdelaziz Dalia Hussein Abdelhafiz
Аннотация
OBJECTIVES: Omentin-1 is a novel adipokine that has a pivotal role in modulating the insulin sensitivity, immunity and inflammation. The current study was conducted to evaluate the serum omentin-1 level in hepatitis C virus (HCV) infected patients, with or without type 2 diabetes, and to investigate its correlation with liver function parameters and insulin resistance.
METHODS: Eighty subjects were enrolled in this study divided into four groups: chronic HCV infected patients (n=20), chronic hepatitis C patients with concomitant type 2 diabetes (n=18), type 2 diabetic patients (n=22) and 20 healthy controls. Serum omentin-1 levels were assessed using enzyme-linked immunosorbent assay (ELISA). Fasting blood glucose, insulin levels, and liver parameters including aminotransferases (ALT and AST) were determined.
RESULTS: Serum omentin-1 levels were significantly elevated in HCV infected patients compared to all other groups. Omentin-1 levels were positively correlated with AST and ALT levels (r =0.43, p< 0.001; r =0.423, p<0.001, respectively). Additionally, a significant negative correlation was found between omentin-1 and both fasting insulin levels and homeostasis model assessment of insulin resistance (HOMA-IR) (r = -0.238, p<0.05; r = -0.277, p<0.05, respectively). Furthermore, fasting blood glucose, HbA1c and HOMA-β were negatively correlated to serum omentin-1 levels however these correlations were not statistically significant.
CONCLUSION: Serum omentin-1 level is elevated in HCV infected patients and is positively associated with liver enzymes AST and ALT. This suggested that omentin-1 may be implicated in the pathogenesis of hepatitis C and its metabolic complications. However its role needs to be elucidated by further studies.
METHODS: Eighty subjects were enrolled in this study divided into four groups: chronic HCV infected patients (n=20), chronic hepatitis C patients with concomitant type 2 diabetes (n=18), type 2 diabetic patients (n=22) and 20 healthy controls. Serum omentin-1 levels were assessed using enzyme-linked immunosorbent assay (ELISA). Fasting blood glucose, insulin levels, and liver parameters including aminotransferases (ALT and AST) were determined.
RESULTS: Serum omentin-1 levels were significantly elevated in HCV infected patients compared to all other groups. Omentin-1 levels were positively correlated with AST and ALT levels (r =0.43, p< 0.001; r =0.423, p<0.001, respectively). Additionally, a significant negative correlation was found between omentin-1 and both fasting insulin levels and homeostasis model assessment of insulin resistance (HOMA-IR) (r = -0.238, p<0.05; r = -0.277, p<0.05, respectively). Furthermore, fasting blood glucose, HbA1c and HOMA-β were negatively correlated to serum omentin-1 levels however these correlations were not statistically significant.
CONCLUSION: Serum omentin-1 level is elevated in HCV infected patients and is positively associated with liver enzymes AST and ALT. This suggested that omentin-1 may be implicated in the pathogenesis of hepatitis C and its metabolic complications. However its role needs to be elucidated by further studies.