Diabetes Mellitus, Nonalcoholic Fatty Liver Disease, and Conjugated Linoleic Acid (Omega 6): What Is the Link?

J Diabetes Res. 2019 Apr 8:2019:5267025. doi: 10.1155/2019/5267025. eCollection 2019.

Abstract

Background and objective: Type 2 DM and obesity are the coming epidemics and their association with NAFLD is well established; essential fatty acids are vital for body health yet the body cannot make them; 2 essential fatty acids are especially important: linoleic (omega-6) and alpha-linoleic (omega-3) acids; they can be considered as "bioactive lipids" and serve as functional foods.

Methods: 50 type 2 Egyptian diabetic patients controlled on oral hypoglycemic drugs together with 20 age- and sex-matched healthy participants were enrolled in the study; all were subjected to complete history taking, BMI, fasting plasma glucose, HOMA-IR, ALT, AST, GGT, urea and creatinine, total lipid profile, hepatitis markers including hepatitis B surface antigen and hepatitis C virus antibodies, conjugated linoleic fatty acid "CLA," and abdominal ultrasound for grading of NAFLD.

Results: Our study in Egyptian diabetics with NAFLD revealed a low level of serum CLA compared to healthy control; such deficiency was more marked with advanced grades of NAFLD; lowest levels were observed in those with severe steatosis (NASH) with definite association between CLA and obesity.

Conclusion: Insulin resistance is the main link between NAFLD, diabetes, and obesity. Conjugated linoleic acid (CLA) has a role in fat deposition in the liver and in development and improvement of insulin resistance. Fatty food had a documented role in the pathogenesis of obesity and diabetes but it can also be the cure.

MeSH terms

  • Administration, Oral
  • Adult
  • Anthropometry
  • Antioxidants / chemistry
  • Blood Glucose / analysis
  • Body Mass Index
  • Cross-Sectional Studies
  • Diabetes Mellitus, Type 2 / blood*
  • Diabetes Mellitus, Type 2 / epidemiology
  • Egypt
  • Female
  • Functional Food
  • Humans
  • Hyperglycemia
  • Insulin / blood
  • Insulin Resistance*
  • Linoleic Acids, Conjugated / blood*
  • Liver / enzymology
  • Male
  • Middle Aged
  • Non-alcoholic Fatty Liver Disease / blood*
  • Non-alcoholic Fatty Liver Disease / epidemiology
  • Obesity / complications
  • Oxidative Stress
  • Prospective Studies

Substances

  • Antioxidants
  • Blood Glucose
  • Insulin
  • Linoleic Acids, Conjugated