Cited by 215Liver Disease Diagnosis and TreatmentAdipokines, Inflammation, and Metabolic DiseasesAdipose Tissue and Metabolism

Irisin in patients with nonalcoholic fatty liver disease

Polyzos, Stergios A., Kountouras, Jannis, Anastasilakis, Athanasios D., Geladari, Eleni V., Mantzoros, Christos S.·2014·Metabolism

Abstract

Objective Irisin is a recently discovered myokine proposed to increase thermogenesis-related energy expenditure and improve metabolism. We aimed to comparatively evaluate serum irisin levels in patients with biopsy-proven nonalcoholic fatty liver disease (NAFLD) vs. controls and study their association with disease severity.Methods Fifteen and 16 consecutively enrolled patients with biopsy-proven nonalcoholic simple steatosis (NAFL) and steatohepatitis (NASH), respectively, and 24 lean and 28 obese controls without NAFLD were recruited. Irisin, established adipokines and biochemical tests were measured.Results Serum irisin levels were statistically different in obese controls (33.7±2.7 ng/mL; p<0.001) and patients with NAFL (30.5±1.5 ng/mL; p<0.001) and NASH (35.8±1.9 ng/mL; p=0.001) compared with lean controls (47.7±2.0 ng/mL), but were similar among patients with NAFL, NASH and obese controls. This difference remained significant after adjustment for body mass index (or waist circumference), gender, age, insulin resistance (assessed by HOMA-IR or QUICKI), exercise and time since blood collection. Serum leptin and adiponectin, but not irisin, levels were independently from BMI correlated with insulin resistance and cardiometabolic factors. Serum irisin tended to be higher in patients with (36.7±2.4 ng/mL) than without (30.8±1.2 ng/mL; p=0.02) portal inflammation and independently associated with the latter; these data need to be confirmed by future studies.Conclusions Serum irisin levels differ between lean controls and obese controls or NAFLD patients. Despite similar circulating irisin levels between NAFL and NASH groups, irisin may be independently and positively associated with the presence of portal inflammation. Future clinical and mechanistic studies are needed to confirm and extend these data.

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Crossref · 10.1016/j.metabol.2013.09.013

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Authors
Polyzos, S. A., Kountouras, J., Anastasilakis, A. D., Geladari, E. V., & Mantzoros, C. S.
Affiliations
  • Aristotle University of Thessaloniki (GR)
  • 424 General Military Hospital (GR)
  • Beth Israel Deaconess Medical Center (US)
Venue
Metabolism
Publisher
Elsevier BV
Published
2014-02
Volume
63
Issue
2
Pages
207-217
ISSN
0026-0495 (ISSN-L)
OpenAlex
W2020381773
Cited by
215
References
50
Citations by year
2026: 4 · 2025: 5 · 2024: 12 · 2023: 15 · 2022: 19 · 2021: 12 · 2020: 24 · 2019: 18 · 2018: 13 · 2017: 17 · 2016: 27 · 2015: 23 · 2014: 24 · 2013: 2
FWCI
18.46
Type
journal article
Language
en
Open access
closed
Locations
  • Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. Public Health Service (NIDDK 81913)
Topics
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
irisin, non-alcoholic fatty liver disease, nonalcoholic steatohepatitis, myokines, serum biomarkers, disease severity, portal inflammation, obesity, insulin resistance, leptin, adiponectin, adipokines
MeSH terms
Adult, Aged, Fatty Liver, Female, Fibronectins, Humans, Inflammation, Insulin Resistance, Male, Middle Aged, Obesity, Portal Vein, Risk Factors, Severity of Illness Index, Thinness, Biomarkers, Body Mass Index, Case-Control Studies, Chemokines, Leptin, Intercellular Signaling Peptides and Proteins, Adiponectin, Adipokines, Retinol-Binding Proteins, Plasma, Non-alcoholic Fatty Liver Disease

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