History of Nonalcoholic Fatty Liver Disease.
Level 5 - mechanism / opinion, no new human data
Narrative historical review without systematic search or primary data
PubMed 32824337 · doi:10.3390/ijms21165888
What was done
This narrative historical review evaluated the historical development of nonalcoholic fatty liver disease (NAFLD) concepts in adults and children. The authors reviewed key milestones from 19th-century observations and Ludwig's foundational 1980 histopathological descriptions to modern genetic discoveries, cellular/molecular pathogenesis, connections to metabolic syndrome, cardiovascular disease, malignancy (hepatocellular carcinoma and extra-hepatic cancers), and the evolution of hepatological clinical practice guidelines.
What was found
The abstract reports no quantitative data or statistical comparisons. It outlines conceptual shifts in NAFLD understanding, notably moving from considering NAFLD merely as a passive hepatic manifestation of metabolic syndrome to recognizing a mutual, bidirectional relationship. It also traces the recognition of NAFLD as an independent cardiovascular risk factor and cancer precursor, while identifying notable discrepancies across clinical society guidelines regarding alcohol thresholds, screening protocols, non-invasive fibrosis assessment, and pharmacotherapy.
Why it matters
Synthesizing the conceptual and diagnostic evolution of NAFLD provides clinical and scientific context for contemporary controversies in disease definition, risk stratification, and guideline recommendations.
Limits
The paper is a qualitative narrative review with no systematic search criteria, pre-specified study selection protocol, or risk-of-bias assessment. No empirical data, quantitative analyses, or sample size metrics are provided in the abstract.
Cited by
- supports Non-alcoholic fatty liver disease was first described in the 1980s.