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Salud pública Méx ; 53(supl.1): S46-S51, 2011. ilus
Article in English | LILACS | ID: lil-597123

ABSTRACT

Viral hepatitis is a common cause of morbidity in Mexico. Insulin resistance (IR) is related to the liver damage caused by some viral infections, especially chronic infections. Chronic viral infection is an important risk factor for the development of type 2 diabetes mellitus, disease that is currently among the 10 main causes of morbidity and the most common cause of mortality. Although several studies have reported an association between IR and hepatitis B virus or hepatitis C virus (HCV) infection, the pathophysiology has been studied thoroughly only for the association between IR and HCV infection. It is thought that HCV infection causes direct damage through the action of the core proteins, which induces an inflammatory state characterized by secretion of proinflammatory cytokines that interfere with normal insulin signaling and disturb glucose, lipid and protein metabolism. This review summarizes the mechanisms by which viral infection is thought to induce IR.


Las hepatitis virales son una causa común de morbilidad en México. La resistencia a la insulina (RI) ha sido relacionada con el daño hepático causado por infecciones virales crónicas, haciendo de ellas un factor de riesgo para el desarrollo de diabetes mellitus tipo 2, problema de salud que se encuentra entre las primeras 10 causas de morbilidad y es la primera de mortalidad. Aunque varios estudios han reportado una asociación entre la RI y la infección con virus de la hepatitis B y virus de la hepatitis C, sólo con el último se ha estudiado su fisiopatología. Se ha sugerido que produce daño directo a través de proteínas de su núcleo e induce un estado inflamatorio que interfiere con la señalización normal de insulina, resultando en una alteración del metabolismo de glucosa, lípidos y proteínas. Esta revisión resume los mecanismos por los que se sugiere que estas infecciones inducen RI.


Subject(s)
Adult , Aged , Humans , Middle Aged , Hepatitis, Viral, Human/physiopathology , Insulin Resistance , Comorbidity , Cytokines , /epidemiology , /etiology , Energy Metabolism , Fatty Acids/metabolism , Fructosediphosphates/biosynthesis , Genotype , Gluconeogenesis , Hepatitis, Viral, Human/epidemiology , Liver Diseases/epidemiology , Liver Diseases/physiopathology , Mexico/epidemiology , Overweight/epidemiology , Prevalence , Risk Factors , Viral Proteins/physiology
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