Nonalcoholic Fatty Liver Disease and Cardiovascular Diseases: The Heart of the Matter

Can J Gastroenterol Hepatol. 2021 Jan 12:2021:6696857. doi: 10.1155/2021/6696857. eCollection 2021.

Abstract

Nonalcoholic fatty liver disease (NAFLD) has emerged as the most frequent cause of liver disease worldwide, comprising a plethora of conditions, ranging from steatosis to end-stage liver disease. Cardiovascular disease (CVD) has been associated with NAFLD and CVD-related events represent the main cause of death in patients with NAFLD, surpassing liver-related mortality. This association is not surprising as NAFLD has been considered a part of the metabolic syndrome and has been related to numerous CVD risk factors, namely, insulin resistance, abdominal obesity, dyslipidemia, hyperuricemia, chronic kidney disease, and type 2 diabetes. Moreover, both NAFLD and CVD present similar pathophysiological mechanisms, such as increased visceral adiposity, altered lipid metabolism, increased oxidative stress, and systemic inflammation that could explain their association. Whether NAFLD increases the risk for CVD or these diagnostic entities represent distinct manifestations of the metabolic syndrome has not yet been clarified. This review focuses on the relation between NAFLD and the spectrum of CVD, considering the pathophysiological mechanisms, risk factors, current evidence, and future directions.

Publication types

  • Review

MeSH terms

  • Cardiovascular Diseases* / epidemiology
  • Cardiovascular Diseases* / etiology
  • Diabetes Mellitus, Type 2*
  • Humans
  • Insulin Resistance*
  • Metabolic Syndrome* / complications
  • Metabolic Syndrome* / epidemiology
  • Non-alcoholic Fatty Liver Disease* / complications
  • Non-alcoholic Fatty Liver Disease* / epidemiology
  • Risk Factors