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Submitted: 24 Sep 2020
Revision: 03 Oct 2020
Accepted: 10 Oct 2020
ePublished: 07 Nov 2020
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Health Promot Perspect. 2020;10(4): 373-382.
doi: 10.34172/hpp.2020.56
  Abstract View: 51
  PDF Download: 36

Original Article

Effects of oleoylethanolamide supplementation on atherogenic indices and hematological parameters in patients with nonalcoholic fatty liver disease: A clinical trial

Helda Tutunchi 1 ORCID logo, Fatemeh Naeini 2, Maryam Saghafi-Asl 1, Nazila Farrin 1, Alireza Monshikarimi 1*, Alireza Ostadrahimi 1* ORCID logo

1 Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
2 Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Background: Non-alcoholic fatty liver disease (NAFLD) is the most frequent cause of chronic liver disease in the world. The current interventional trial aimed to evaluate the effects of supplementation with oleoylethanolamide (OEA) in combination with weight loss intervention on some atherogenic indices as well as hematological parameters in patients newly diagnosed with NAFLD.

Methods: In this triple-blinded, randomized, placebo-controlled clinical trial, 76 obese patients with NAFLD confirmed by ultra-sonographic findings were randomly assigned to receive a weight reduction diet plus either 250 mg OEA (n=38) or placebo (n=38) for 12 weeks. Atherogenic factors including total cholesterol/high-density lipoprotein cholesterol (HDL-C),low-density lipoprotein cholesterol (LDL-C)/HDL-C, triglyceride (TG)/HDL-C, non-HDL-C/HDL-C ratios and non-HDL-C level, as well as hematological parameters were assessed before and after intervention.

Results: After adjustment for potential confounding factors, between group analyses demonstrated a significantly lower LDL-C/HDL-C, TG/HDL-C, and non-HDL-C/HDL-C ratios in the OEA group compared to the placebo, post-intervention (95% confidence interval [CI]:0.06 to 0.85, P = 0.024; 95% CI: -2.06 to -0.05, P = 0.039; 95% CI: -1.05 to -0.02, P = 0.042,respectively). Additionally, OEA supplementation could significantly decrease the levels of red blood cell distribution width (RDW) compared to the placebo at the endpoint after considering potential confounding variables (95% CI: -0.56 to -0.003, P = 0.041). No significant differences were found between the two study groups in terms of other hematological parameters.

Conclusion: The results of the current study indicated that OEA supplementation had beneficial effects on LDL-C/HDL-C, TG/HDL-C, and non-HDL-C/HDL-C ratios as well as RDW in obese patients with NAFLD.

Trial Registration: IRCT20110530006652N2; https://www.irct.ir/trial/37228.

Keywords: Atherogenic indices, Hematological parameters, Non-alcoholic fatty liver disease, Oleoylethanolamide, PPAR alpha
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