Increased intestinal-fatty acid binding protein in obesity-associated type 2 diabetes mellitus

PLoS One. 2023 Jan 26;18(1):e0279915. doi: 10.1371/journal.pone.0279915. eCollection 2023.

Abstract

Background: Obesity is a traditional risk factor for type 2 diabetes mellitus (T2DM). However, recent studies reported that metabolically unhealthy obesity (MUO) exerts a higher risk of developing T2DM than metabolically healthy obesity (MHO) because of its higher state of insulin resistance. This may happen due to metabolic endotoxemia through gut dysbiosis and increased intestinal permeability. Our study aimed to know the association of intestinal permeability using intestinal fatty acid-binding protein (I-FABP) with obesity-related T2DM patients in Indonesia.

Methods: This was a cross-sectional study that recruited 63 participants with obesity defined using body mass index (BMI) classification for the Asia-Pacific population (BMI ≥25 kg/m2). All participants were then grouped into T2DM and non-T2DM based on American Diabetes Association (ADA) diagnostic criteria. The I-FABP levels were measured using the enzyme-linked immunosorbent assay method.

Results: The I-FABP level of T2DM group was higher compared to non-T2DM group, namely 2.82 (1.23) ng/mL vs. 1.78 (0.81) ng/mL (p<0.001; mean difference 1.033 with 95% CI 0.51-1.55). This difference was not attenuated even after adjustment for age. The fitted regression model using linear regression was: i-FABP = 1.787+1.034*(DM) (R2 = 18.20%, standardized ß = 0.442, p<0.001).

Conclusions: This study underscores the association of intestinal permeability with T2DM in people with obesity and supports the evidence of the potential role of intestinal permeability in the pathogenesis of obesity-related T2DM.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Body Mass Index
  • Cross-Sectional Studies
  • Diabetes Mellitus, Type 2* / epidemiology
  • Fatty Acid-Binding Proteins
  • Humans
  • Obesity / complications
  • Obesity / epidemiology
  • Obesity, Metabolically Benign* / epidemiology
  • Risk Factors

Substances

  • Fatty Acid-Binding Proteins

Grants and funding

DLT recieved grant from the Ministry of Research and Technology Republic of Indonesia [PUPTN Dikti NKB-2766/UN2.RST/HKP.05.00.2020]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.