TY - JOUR
T1 - Hepatic expression of ghrelin and adiponectin and their receptors in patients with nonalcoholic fatty liver disease
AU - Uribe, Misael
AU - Zamora-Valdés, Daniel
AU - Moreno-Portillo, Mucio
AU - Bermejo-Martínez, Luisa
AU - Pichardo-Bahena, Raúl
AU - Baptista-González, Héctor A.
AU - Ponciano-Rodríguez, Guadalupe
AU - Uribe, Martha H.
AU - Medina-Santillán, Roberto
AU - Méndez-Sánchez, Nahum
PY - 2008
Y1 - 2008
N2 - Background&aim: Adiponectin and ghrelin are hormones that participate in hepatic lipid metabolism, and their expression in liver tissue could have important implications for nonalcoholic fatty liver disease (NAFLD). The aim of this study was to evaluate the hepatic expression of ghrelin, adiponectin, AdipoR, and IL-6 in patients with NAFLD and normal liver. Methods: We studied patients with clinical-pathological diagnosis of NAFLD or a normal liver. Patients were classified according to their diagnosis into three groups: normal liver, nonalcoholic hepatic steatosis, and nonalcoholic steatohepatitis (NASH). Adiponectin, AdipoR1, AdipoR2, IL-6, and ghrelin mRNA levels were assessed in biopsies by reverse transcriptasepolymerase chain reaction. Results: Of the 21 patients, three had a normal liver biopsy, 14 had nonalcoholic steatosis, and four had NASH. Patients with NAFLD exhibited significantly higher HOMA-IR and triglyceride concentration (both P < 0.05). There was a nonsignificant trend towards higher ghrelin expression in patients with NASH > nonalcoholic steatosis > normal liver. Patients with NASH had significantly higher mRNA adiponectin levels and lower IL-6 levels than did those with a normal liver (P < 0.05). AdipoR expression did not differ significantly between groups. Conclusion: Adiponectin overexpression was observed in patients with NASH. The role of hepatic ghrelin in NAFLD requires further research.
AB - Background&aim: Adiponectin and ghrelin are hormones that participate in hepatic lipid metabolism, and their expression in liver tissue could have important implications for nonalcoholic fatty liver disease (NAFLD). The aim of this study was to evaluate the hepatic expression of ghrelin, adiponectin, AdipoR, and IL-6 in patients with NAFLD and normal liver. Methods: We studied patients with clinical-pathological diagnosis of NAFLD or a normal liver. Patients were classified according to their diagnosis into three groups: normal liver, nonalcoholic hepatic steatosis, and nonalcoholic steatohepatitis (NASH). Adiponectin, AdipoR1, AdipoR2, IL-6, and ghrelin mRNA levels were assessed in biopsies by reverse transcriptasepolymerase chain reaction. Results: Of the 21 patients, three had a normal liver biopsy, 14 had nonalcoholic steatosis, and four had NASH. Patients with NAFLD exhibited significantly higher HOMA-IR and triglyceride concentration (both P < 0.05). There was a nonsignificant trend towards higher ghrelin expression in patients with NASH > nonalcoholic steatosis > normal liver. Patients with NASH had significantly higher mRNA adiponectin levels and lower IL-6 levels than did those with a normal liver (P < 0.05). AdipoR expression did not differ significantly between groups. Conclusion: Adiponectin overexpression was observed in patients with NASH. The role of hepatic ghrelin in NAFLD requires further research.
KW - Adipokine hormone
KW - Adiponectin
KW - Fatty acids
KW - Ghrelin
KW - Interleukin-6
KW - Non alcoholic fatty liver disease
UR - http://www.scopus.com/inward/record.url?scp=41549106697&partnerID=8YFLogxK
U2 - 10.1016/s1665-2681(19)31890-3
DO - 10.1016/s1665-2681(19)31890-3
M3 - Artículo
SN - 1665-2681
VL - 7
SP - 67
EP - 71
JO - Annals of Hepatology
JF - Annals of Hepatology
IS - 1
ER -