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Nonalcoholic fatty liver disease: Evolving paradigms.

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Nonalcoholic fatty liver disease (NAFLD) is a complex, heterogeneous condition with epidemic prevalence. Targeted screening in high-risk cohorts is recommended due to its systemic impacts and links to metabolic disorders.

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Area of Science:

  • Hepatology
  • Metabolic Disorders
  • Public Health

Background:

  • Nonalcoholic fatty liver disease (NAFLD) prevalence is epidemic, challenging previous understandings.
  • Current screening of the general population is impractical; focus on high-risk cohorts is advised.
  • NAFLD is recognized as a systemic condition with metabolic, cardiovascular, and cancer risks.

Purpose of the Study:

  • To review updated evidence on NAFLD's clinical and pathogenic heterogeneity.
  • To highlight NAFLD's systemic implications, including links to diabetes and cardiovascular disease.
  • To discuss diagnostic strategies, risk stratification, and treatment options for NAFLD.

Main Methods:

  • Literature review of recent evidence on NAFLD.
  • Analysis of NAFLD's complex pathogenesis and clinical manifestations.
  • Discussion of diagnostic criteria (non-invasive and biopsy) and associated conditions.

Main Results:

  • NAFLD exhibits significant clinical and pathogenic heterogeneity, including metabolic and 'lean' phenotypes.
  • NAFLD is associated with hyperuricemia, insulin resistance, atherosclerosis, gallstones, psoriasis, and endocrine issues.
  • NAFLD is a precursor to type 2 diabetes and metabolic syndrome, worsening liver disease progression.

Conclusions:

  • NAFLD is a systemic disorder with multifactorial pathogenesis and diverse clinical features.
  • Selective screening in high-risk individuals is crucial for early detection of complications.
  • Aggressive and timely treatment strategies are recommended for patients with NAFLD.