NAFLD in normal weight individuals

Abstract Nonalcoholic fatty liver disease (NAFLD) can develop in lean individuals. Despite a better metabolic profile, the risk of disease progression to hepatic inflammation, fibrosis, and decompensated cirrhosis in the lean is similar to that in obesity-related NAFLD and lean individuals may exper...

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Main Authors: Johanna K. DiStefano, Glenn S. Gerhard
Format: Article
Language:English
Published: BMC 2022-03-01
Series:Diabetology & Metabolic Syndrome
Subjects:
Online Access:https://doi.org/10.1186/s13098-022-00814-z
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author Johanna K. DiStefano
Glenn S. Gerhard
author_facet Johanna K. DiStefano
Glenn S. Gerhard
author_sort Johanna K. DiStefano
collection DOAJ
description Abstract Nonalcoholic fatty liver disease (NAFLD) can develop in lean individuals. Despite a better metabolic profile, the risk of disease progression to hepatic inflammation, fibrosis, and decompensated cirrhosis in the lean is similar to that in obesity-related NAFLD and lean individuals may experience more severe hepatic consequences and higher mortality relative to those with a higher body mass index (BMI). In the absence of early symptoms and abnormal laboratory findings, lean individuals are not likely to be screened for NAFLD or related comorbidities; however, given the progressive nature of the disease and the increased risk of morbidity and mortality, a clearer understanding of the natural history of NAFLD in lean individuals, as well as efforts to raise awareness of the potential health risks of NAFLD in lean individuals, are warranted. In this review, we summarize available data on NAFLD prevalence, clinical characteristics, outcomes, and mortality in lean individuals and discuss factors that may contribute to the development of NAFLD in this population, including links between dietary and genetic factors, menopausal status, and ethnicity. We also highlight the need for greater representation of lean individuals in NAFLD-related clinical trials, as well as more studies to better characterize lean NAFLD, develop improved screening algorithms, and determine specific treatment strategies based on underlying etiology.
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spelling doaj.art-298405b90c774194b9b852cd429490bb2022-12-21T23:33:12ZengBMCDiabetology & Metabolic Syndrome1758-59962022-03-0114111810.1186/s13098-022-00814-zNAFLD in normal weight individualsJohanna K. DiStefano0Glenn S. Gerhard1Diabetes and Fibrotic Disease Research Unit, Translational Genomics Research InstituteLewis Katz School of Medicine, Temple University School of MedicineAbstract Nonalcoholic fatty liver disease (NAFLD) can develop in lean individuals. Despite a better metabolic profile, the risk of disease progression to hepatic inflammation, fibrosis, and decompensated cirrhosis in the lean is similar to that in obesity-related NAFLD and lean individuals may experience more severe hepatic consequences and higher mortality relative to those with a higher body mass index (BMI). In the absence of early symptoms and abnormal laboratory findings, lean individuals are not likely to be screened for NAFLD or related comorbidities; however, given the progressive nature of the disease and the increased risk of morbidity and mortality, a clearer understanding of the natural history of NAFLD in lean individuals, as well as efforts to raise awareness of the potential health risks of NAFLD in lean individuals, are warranted. In this review, we summarize available data on NAFLD prevalence, clinical characteristics, outcomes, and mortality in lean individuals and discuss factors that may contribute to the development of NAFLD in this population, including links between dietary and genetic factors, menopausal status, and ethnicity. We also highlight the need for greater representation of lean individuals in NAFLD-related clinical trials, as well as more studies to better characterize lean NAFLD, develop improved screening algorithms, and determine specific treatment strategies based on underlying etiology.https://doi.org/10.1186/s13098-022-00814-zNAFLDNASHLeanNonobeseBMIPrevalence
spellingShingle Johanna K. DiStefano
Glenn S. Gerhard
NAFLD in normal weight individuals
Diabetology & Metabolic Syndrome
NAFLD
NASH
Lean
Nonobese
BMI
Prevalence
title NAFLD in normal weight individuals
title_full NAFLD in normal weight individuals
title_fullStr NAFLD in normal weight individuals
title_full_unstemmed NAFLD in normal weight individuals
title_short NAFLD in normal weight individuals
title_sort nafld in normal weight individuals
topic NAFLD
NASH
Lean
Nonobese
BMI
Prevalence
url https://doi.org/10.1186/s13098-022-00814-z
work_keys_str_mv AT johannakdistefano nafldinnormalweightindividuals
AT glennsgerhard nafldinnormalweightindividuals