title: Effects of CoQ10 Supplementation on Lipid Profiles and Glycemic Control in Patients with Type 2 Diabetes: a randomized, double blind, placebo-controlled trial.
abstract: BACKGROUND
  Low grade inflammation and oxidative stress are the key factors in the pathogenesis and development of diabetes and its complications. Coenzyme Q10 (CoQ10) is known as an antioxidant and has a vital role in generation of cellular energy providing. This study was undertaken to evaluate the effects of CoQ10 supplementation on lipid profiles and glycemic controls in patients with diabetes.
  
  
  METHODS
  Fifty patients with diabetes were randomly allocated into two groups to receive either 150 mg CoQ10 or placebo daily for 12 weeks. Before and after supplementation, fasting venous blood samples were collected and lipid profiles containing triglyceride, total cholesterol, low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) and glycemic indices comprising of fasting plasma glucose (FPG), insulin and hemoglobin A1C (HbA1C) were measured. Insulin resistance was calculated using HOMA-IR index.
  
  
  RESULTS
  Forty patients completed the study. After intervention FPG and HbA1C were significantly lower in the CoQ10 group compared to the placebo group, but there were no significant differences in serum insulin and HOMA-IR between the two groups. Although total cholesterol did not change in the Q10 group after supplementation, triglyceride and HDL-C significantly decreased and LDL-C significantly increased in the CoQ10 group.
  
  
  CONCLUSIONS
  The present study showed that treatment with Q10 may improve glycemic control with no favorable effects on lipid profiles in type 2 patients with diabetes.
  
  
  BACKGROUND
  IRCT registry number: IRCT138806102394N1.
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular -Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Hoda
authors.initials: H
authors.lastname: Zahedi
authors.affiliation: Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Shahryar
authors.initials: S
authors.lastname: Eghtesadi
authors.affiliation: Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Soroush
authors.initials: S
authors.lastname: Seifirad
authors.affiliation: Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Neshat
authors.initials: N
authors.lastname: Rezaee
authors.affiliation: Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Farzad
authors.initials: F
authors.lastname: Shidfar
authors.affiliation: Institute of Endocrinology and Metabolism, Firouzgar Hospital, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Iraj
authors.initials: I
authors.lastname: Heydari
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Banafsheh
authors.initials: B
authors.lastname: Golestan
authors.affiliation: Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: Shima
authors.initials: S
authors.lastname: Jazayeri
keywords: Blood glucose; Coenzyme Q10; Diabetes mellitus type 2; Inflammation; Oxidative stress