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Ahmadi Asouri S, Asemi R, Aghadavod E, Jamilian M. The effect of coenzyme Q10 intake on metabolic profiles in women candidates for in-vitro fertilization: a randomised trial. Ann Med Surg (Lond) 2024; 86:3378-3384. [PMID: 38846853 PMCID: PMC11152844 DOI: 10.1097/ms9.0000000000001732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/08/2024] [Indexed: 06/09/2024] Open
Abstract
Objective Infertility and the pathogenesis of polycystic ovarian syndrome (PCOS) are both influenced by insulin resistance and dyslipidemia. Presumably, adding coenzyme Q10 (CoQ10) to these patients' diets will be beneficial. Therefore, this study aimed to examine the effects of CoQ10 supplementation on metabolic profiles in women candidates for in-vitro fertilization (IVF). Trial design and methods For this randomized, double-blinded, parallel, placebo-controlled clinical experiment, 40 PCOS-positive infertile women who were IVF candidates were included. They ranged in age from 18 to 40. The 20 participants in the two intervention groups received either CoQ10 or a placebo for 8 weeks. The expression of glucose transporter 1 (GLUT-1), peroxisome proliferator-activated receptor gamma (PPAR-γ), low-density lipoprotein receptor (LDLR), as well as metabolic profiles such as insulin metabolism and lipid profiles were evaluated. Quantitative RT-PCR determined the expression of GLUT-1, PPAR-γ, and LDLR on peripheral blood mononuclear cells. Lipid profiles and fasting glucose were assessed using enzymatic kits, and insulin was determined using Elisa kit. Results In comparison to the placebo, CoQ10 supplementation significantly reduced blood insulin levels (-0.3±1.0 vs. 0.5±0.7, P=0.01) and insulin resistance (-0.1±0.2 vs. 0.1±0.2, P=0.01), and increased PPAR-γ expression (P=0.01). In infertile PCOS patients' candidates for IVF, CoQ10 supplementation showed no appreciable impact on other metabolic profiles. Also, CoQ10 supplementation revealed no significant impact on GLUT-1 (P=0.30), or LDLR (P=0.27) expression. Within-group changes in insulin levels (P=0.01) and insulin resistance (P=0.01) showed a significant elevation in the placebo group. When we adjusted the analysis for baseline BMI, baseline values of variables, and age, our findings were not affected. Conclusions Eight weeks of CoQ10 supplementation demonstrated positive benefits on PPAR-γ expression, insulin resistance, and serum insulin in infertile PCOS women candidates for IVF.
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Affiliation(s)
- Sahar Ahmadi Asouri
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan
| | - Reza Asemi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan
| | - Mehri Jamilian
- Traditional and Complementary Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
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Samimi F, Namiranian N, Sharifi-Rigi A, Siri M, Abazari O, Dastghaib S. Coenzyme Q10: A Key Antioxidant in the Management of Diabetes-Induced Cardiovascular Complications-An Overview of Mechanisms and Clinical Evidence. Int J Endocrinol 2024; 2024:2247748. [PMID: 38524871 PMCID: PMC10959587 DOI: 10.1155/2024/2247748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/26/2024] Open
Abstract
Background Diabetes mellitus (DM) presents a significant global health challenge with considerable cardiovascular implications. Coenzyme Q10 (CoQ10) has gained recognition for its potential as a natural antioxidant supplement in the management of diabetes and its associated cardiovascular complications. Aim This comprehensive review systematically examines the scientific rationale underlying the therapeutic properties of CoQ10 in mitigating the impact of diabetes and its cardiovascular consequences. The analysis encompasses preclinical trials (in vitro and in vivo) and clinical studies evaluating the efficacy and mechanisms of action of CoQ10. Result & Discussion. Findings reveal that CoQ10, through its potent antioxidant and anti-inflammatory attributes, demonstrates significant potential in reducing oxidative stress, ameliorating lipid profiles, and regulating blood pressure, which are crucial aspects in managing diabetes-induced cardiovascular complications. CoQ10, chemically represented as C59H90O4, was administered in capsule form for human studies at doses of 50, 100, 150, 200, and 300 mg per day and at concentrations of 10 and 20 μM in sterile powder for experimental investigations and 10 mg/kg in powder for mouse studies, according to the published research. Clinical trials corroborate these preclinical findings, demonstrating improved glycemic control, lipid profiles, and blood pressure in patients supplemented with CoQ10. Conclusion In conclusion, CoQ10 emerges as a promising natural therapeutic intervention for the comprehensive management of diabetes and its associated cardiovascular complications. Its multifaceted impacts on the Nrf2/Keap1/ARE pathway, oxidative stress, and metabolic regulation highlight its potential as an adjunct in the treatment of diabetes and related cardiovascular disorders. However, further extensive clinical investigations are necessary to fully establish its therapeutic potential and assess potential synergistic effects with other compounds.
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Affiliation(s)
- Fatemeh Samimi
- Diabetes Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasim Namiranian
- Diabetes Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ali Sharifi-Rigi
- Department of Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Morvarid Siri
- Autophagy Research Center, Department of Clinical Biochemistry, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omid Abazari
- Department of Clinical Biochemistry, School of Medicine, Shahid Sadoughi University of Medical Sciences and Health Services, Yazd, Iran
| | - Sanaz Dastghaib
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Autophagy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Liu Y, Zhuang Z, Liao Z, Yao R, Chen M, Wei H, Zhao W, Niu J. Effects of Low-Fish-Meal Diet Supplemented with Coenzyme Q10 on Growth Performance, Antioxidant Capacity, Intestinal Morphology, Immunity and Hypoxic Resistance of Litopenaeus vannamei. Antioxidants (Basel) 2023; 12:2042. [PMID: 38136162 PMCID: PMC10740702 DOI: 10.3390/antiox12122042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/24/2023] Open
Abstract
The aim of this study was to evaluate the effects of a low-fish-meal diet supplemented with coenzyme Q10 on the growth, antioxidant capacity, immunity, intestinal health and hypoxic resistance of Litopenaeus vannamei. L.vannamei with an initial weight of 0.66 g were fed with the experimental diets for 56 days. Diets D1 (20% FM level) and D2-D7 (15% FM level), supplemented with 0%, 0.002%, 0.004%, 0.006%, 0.008% and 0.01% coenzyme Q10 were formulated. In terms of growth performance, the weight gain and specific growth rate in the D2 diet were significantly lower than those in the D1 diet (p < 0.05). The final body weight, weight gain and specific growth rate in the D2-D7 diets had an upward trend, and the condition factor in the D2-D7 diets was lower than those in the D1 diet (p < 0.05). There were no significant differences in the crude protein and crude lipid levels in the whole body among all diet treatments (p > 0.05). In terms of hepatopancreas antioxidant parameters, the D5 and D6 diets significantly promoted the total antioxidant capacity and total superoxide dismutase activity, and significantly decreased the malondialdehyde content (p < 0.05). The expression levels of cat, mnsod and gpx in shrimp fed with the D5 and D6 diets were significantly higher than those of shrimp fed with the D2 diet (p < 0.05). In addition, the mRNA level of ProPO was increased in the D4 and D5 diets, and LZM expression was increased in the D6 diet compared with the D1 diet (p < 0.05). The villus height of shrimp fed with diets supplemented with coenzyme Q10 was significantly increased (p < 0.05), and the intestinal thickness and submucosal thickness of shrimp fed with the D6 diet were the highest (p < 0.05). After acute hypoxia stress, lethal dose 50 time in the D3-D7 diets was significantly increased compared with the D1 and D2 diets (p < 0.05), and the highest value was found in the D4 diet (p < 0.05). After stress, the expression levels of TLR pathway-related genes (Toll, Myd88, Pelle, TRAF6 and Dorsal) in the D4 and D6 diets were significantly increased compared with the D2 diet. In general, Litopenaeus vannamei fed with the D6 diet achieved the best growth, antioxidant capacity, immunity, and intestinal morphology among all low FM diets and D4-D6 diets improved hypoxic resistance.
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Affiliation(s)
| | | | | | | | | | | | - Wei Zhao
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (Y.L.); (Z.Z.); (Z.L.); (R.Y.); (M.C.); (H.W.)
| | - Jin Niu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory for Aquatic Economic Animals and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, China; (Y.L.); (Z.Z.); (Z.L.); (R.Y.); (M.C.); (H.W.)
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Zhang T, He Q, Xiu H, Zhang Z, Liu Y, Chen Z, Hu H. Efficacy and Safety of Coenzyme Q10 Supplementation in the Treatment of Polycystic Ovary Syndrome: a Systematic Review and Meta-analysis. Reprod Sci 2023; 30:1033-1048. [PMID: 35941510 DOI: 10.1007/s43032-022-01038-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 07/12/2022] [Indexed: 11/27/2022]
Abstract
The aim of this study is to evaluate the efficacy and safety of coenzyme Q10 supplementation in the treatment of polycystic ovary syndrome (PCOS). We first searched PubMed, Wanfang Data, CNKI, Embase, ClinicalTrial.gov, and other databases. The retrieval time from the establishment of the database to January 2021. We collected relevant randomized controlled trials (RCTs) about coenzyme Q10 in the treatment of PCOS. Risk of bias assessment and meta-analysis of RCTs were performed using RevMan 5.0 software. This systematic review and meta-analysis include a total of 9 RCTs involving 1021 patients. The results show that the addition of coenzyme Q10 may improve insulin resistance (HOMA-IR (WMD - 0.67 [- 0.87, - 0.48], P < 0.00001); fasting insulin (WMD - 1.75 [- 2.65, - 0.84], P = 0.0002); fasting plasma glucose (WMD - 5.20 [- 8.86, - 1.54], P = 0.005)), improve sex hormone levels (FSH (SMD - 0.45 [0.11, 0.78], P = 0.009); testosterone (SMD - 0.28 [- 0.49, - 0.06], P = 0.01)), and improve blood lipids (triglycerides (SMD - 0.49 [- 0.89, - 0.09], P = 0.02); total cholesterol (SMD - 0.35 [- 0.56, - 0.14], P = 0.001); LDL-C (SMD - 0.22 [- 0.43, - 0.01], P = 0.04); HDL-C (SMD 0.22 [0.01, 0.43], P = 0.04)). Only one RCT reported adverse events, and they found that patients had no adverse effects or symptoms following supplementation. Based on the current evidence, it could be considered that the addition of CoQ10 is a safe therapy to improve PCOS by improving insulin resistance (reduce HOMA-IR, FINS, FPG), increasing sex hormone levels (increase FSH, reduce testosterone), and improving blood lipids (reduce TG, TC, LDL-C, and increased HDL-C).
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Affiliation(s)
- Tianqing Zhang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China
| | - Qi He
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China
| | - Hao Xiu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China
| | - ZiZhu Zhang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China
| | - Yao Liu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China
| | - Zhenrong Chen
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China
| | - Hengjing Hu
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hunan Province, Hengyang, China.
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, Hunan, China.
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Elgarawany GE, Badawy AD, Hazzaa SM. Co Q10 improves vascular reactivity in male diabetic rats by enhancing insulin sensitivity and antioxidant effect. Arch Physiol Biochem 2023; 129:108-115. [PMID: 32718232 DOI: 10.1080/13813455.2020.1798465] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oxidative stress is the main player in the development of diabetic vascular complications. Co-Q10 is a natural antioxidant present in the body and in many foods. This study was designed to evaluate the effect of Co-Q10 administration to improve vascular complications and increase insulin sensitivity in diabetic rats. Fifty male rats were divided into five groups: control, diabetic untreated, diabetic insulin-treated, diabetic Co-Q10-treated, and diabetic combined-treated groups. After 8 weeks, blood pressure and vascular reactivity to NE and ACh, fasting glucose, insulin, C-peptide, MDA, TAC, HbA1c, and the HOMA-IR were measured. Diabetes increased fasting glucose, HbA1c, HOMA-IR, MDA, blood pressure, and decreased TAC and vascular reactivity. Ttreatment with insulin or Co-Q10 improved glycemic parameters and increasing antioxidant levels compared to diabetic group. Combined Co-Q10 with insulin was found to increase insulin sensitivity and decrease its resistance, which helps to decrease insulin doses in diabetic patients and reduce its side effects.
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Affiliation(s)
- Ghada E Elgarawany
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebeen El Kom, Egypt
- Department of Biomedical Science, Faculty of Medicine, Gulf Medical University, UAE
| | - Ahmed Desoky Badawy
- Department of Medical Physiology, Faculty of Medicine, 6 October University, 6 October City, Egypt
| | - Suzan M Hazzaa
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Shebeen El Kom, Egypt
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Wang R, Miao C, Chen Y, Zhao Y, Yang L, Cheng W, Zhang Q. Antioxidant supplements relieve insulin resistance but do not improve lipid metabolism in women with polycystic ovary syndrome: a meta-analysis of randomized clinical trials. Gynecol Endocrinol 2022; 38:1047-1059. [PMID: 36437750 DOI: 10.1080/09513590.2022.2148648] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Objective: The effect of antioxidant supplements on glucose metabolism and lipid profiles in polycystic ovary syndrome (PCOS) remains controversial. This systematic review and meta-analysis aimed to evaluate whether antioxidant supplements improve glucose metabolism and lipid profiles in women with PCOS to provide optimal nutritional supplement advice in clinical practice. Methods: The search was conducted across multiple medical databases from inception to January 1, 2022 and performed following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. A random effects model was used to calculate the overall effects. Results: Eighteen trials (1113 participants) were included. Antioxidant supplements significantly improved insulin resistance (95% CI, -0.62, -0.30; p < 0.00001; I2 =48%), fasting insulin (95% CI, -0.80, -0.44; p < 0.00001; I2 = 48%), and fasting plasma glucose (95% CI, -0.54, -0.21; p < 0.00001; I2 = 38%) in patients with PCOS. However, antioxidant supplements were found to not improve most indices of lipid profiles in PCOS except triglyceride. Conclusions: Antioxidant supplements are an effective intervention for relieving insulin resistance but do not significantly improve lipid metabolism in women with PCOS.
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Affiliation(s)
- Ruye Wang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenyun Miao
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Yun Chen
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Ying Zhao
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Liuqing Yang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
| | - Wei Cheng
- Department of Orthopedics, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou,China
| | - Qin Zhang
- Department of TCM Gynecology, Hangzhou TCM hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, China
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El-Dakroury WA, Zewail MB, Amin MM. Design, optimization, and in-vivo performance of glipizide-loaded O-carboxymethyl chitosan nanoparticles in insulin resistant/type 2 diabetic rat model. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Effects of curcumin and/or coenzyme Q10 supplementation on metabolic control in subjects with metabolic syndrome: a randomized clinical trial. Nutr J 2022; 21:62. [PMID: 36192751 PMCID: PMC9528102 DOI: 10.1186/s12937-022-00816-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 09/28/2022] [Indexed: 11/30/2022] Open
Abstract
Background Metabolic syndrome (MetS) as a cluster of conditions including hyperlipidemia, hypertension, hyperglycemia, insulin resistance, and abdominal obesity is linked to cardiovascular diseases and type 2 diabetes. Evidence suggested that intake of curcumin and coenzyme Q10 may have therapeutic effects in the management of MetS. Aims We investigated the effects of curcumin and/or coenzyme Q10 supplementation on metabolic syndrome components including systolic blood pressure (SBP), diastolic blood pressure (DBP), waist circumference (WC), triglyceride (TG), high density lipoprotein-cholesterol (HDL-c) and fasting plasma glucose (FPG) as primary outcomes, and total cholesterol (TC), low density lipoprotein-cholesterol (LDL-c) and body mass index (BMI) as secondary outcomes in subjects with MetS. Methods In this 2 × 2 factorial, randomized, double-blinded, placebo-controlled study, 88 subjects with MetS were randomly assigned into four groups including curcumin plus placebo (CP), or coenzyme Q10 plus placebo (QP), or curcumin plus coenzyme Q10 (CQ), or double placebo (DP) for 12 weeks. Results The CP group compared with the three other groups showed a significant reduction in HDL-c (P = 0.001), TG (P < 0.001), TC (P < 0.001), and LDL-c (P < 0.001). No significant differences were seen between the four groups in terms of SBP, DBP, FPG, WC, BMI and weight. Conclusion Curcumin improved dyslipidemia, but had no effect on body composition, hypertension and glycemic control. Furthermore, coenzyme Q10 as well as the combination of curcumin and coenzyme Q10 showed no therapeutic effects in subjects with MetS. The trial was registered on 09/21/2018 at the Iranian clinical trials website (IRCT20180201038585N2), URL: https://www.irct.ir/trial/32518.
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Liang Y, Zhao D, Ji Q, Liu M, Dai S, Hou S, Liu Z, Mao Y, Tian Z, Yang Y. Effects of coenzyme Q10 supplementation on glycemic control: A GRADE-assessed systematic review and dose-response meta-analysis of randomized controlled trials. EClinicalMedicine 2022; 52:101602. [PMID: 35958521 PMCID: PMC9358422 DOI: 10.1016/j.eclinm.2022.101602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Previous reviews reported that the effects of CoQ10 on glycemic control were inconsistent. There is no review exploring the optimal intake of CoQ10 for glycemic control. We aimed to investigate the efficacy of CoQ10 on glycemic control and evaluate the dose-response relationship via integrating the existing evidence from randomized control trials (RCTs). METHODS Databases (PubMed, Embase, and Cochrane Library) were searched to identify RCTs for investigating the efficacy of CoQ10 on fasting glucose, fasting insulin, HbA1c, and HOMA-IR up to March 12, 2022. We performed a meta-analysis on 40 RCTs of CoQ10. Weighted mean difference (WMD) and 95% confidence intervals (CIs) were calculated for net changes. Evidence certainty was assessed using GRADE. Dose-response relationships were evaluated using 1-stage restricted cubic spline regression model. The protocol was registered in PROSPERO (CRD42021252933). FINDINGS Forty studies (n = 2,424 participants) were included in this meta-analysis. CoQ10 significantly reduced fasting glucose (WMD: -5.22 [95% CI: -8.33, -2.11] mg/dl; P <0.001; I2 =95.10%), fasting insulin (-1.32 [-2.06, -0.58] μIU/ml; P < 0.001; I2 =78.86%), HbA1c (-0.12% [-0.23, -0.01]; P =0.04; I2 =49.10%), and HOMA-IR (-0.69 [-1.00, -0.38]; P <0.001; I2 =88.80%). The effect of CoQ10 on outcomes was greater in diabetes with lower heterogeneity. A "U" shape dose-response relationship curve revealed that 100-200 mg/day of CoQ10 largely decreased fasting glucose (χ 2 = 12.08, P nonlinearity =0.002), fasting insulin (χ 2 = 9.73, P nonlinearity =0.008), HbA1c (χ 2 = 6.00, P nonlinearity =0.049), HOMA-IR (χ 2 = 25.89, P nonlinearity <0.001). INTERPRETATION CoQ10 supplementation has beneficial effects on glycemic control, especially in diabetes, and 100-200 mg/day of CoQ10 could achieve the greatest benefit, which could provide a basis for the dietary guidelines of CoQ10 in patients with glycemic disorders. FUNDING This work was supported by the National Natural Science Foundation of China (No. 82030098, 81872617 and 81730090), Shenzhen Science, Technology, and Innovation Commission (No. JCYJ20180307153228190), CNS Research Fund for DRI, and National innovation and entrepreneurship training program for undergraduate student (No. 202210558161).
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Affiliation(s)
- Ying Liang
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Dan Zhao
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Qiuhua Ji
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Meitong Liu
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Suming Dai
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Shanshan Hou
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Zhihao Liu
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuheng Mao
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
| | - Zezhong Tian
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
- Corresponding authors at: School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China.
| | - Yan Yang
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Sun Yat-sen University, Guangzhou 510080, China
- Guangdong Engineering Technology Center of Nutrition Transformation, Sun Yat-sen University, Guangzhou 510080, China
- China-DRIs Expert Committee, Beijing 100000, China
- Corresponding authors at: School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, PR China.
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Akarca-Dizakar SÖ, Demirel MA, Coşkun Akçay N, Sipahi M, Karakoç Sökmensüer L, Boyunaga H, Köylü A, Ömeroğlu S. The therapeutic effects of coenzyme Q10 on surgically induced endometriosis in Sprague Dawley rats. J OBSTET GYNAECOL 2022; 42:3290-3298. [PMID: 36048875 DOI: 10.1080/01443615.2022.2114322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The aim of this study was to evaluate the effects of coenzyme Q10 in the treatment of endometriosis rat models. Twenty seven Sprague Dawley rats were divided into four groups; Control Group (n = 7; Endometriosis group), Reference Group (n = 6; Endometriosis + Buserelin acetate, 20 mg/kg), CoQ10 Group-I (n = 7; Endometriosis + CoQ10, 50 mg/kg) and CoQ10 Group-II (n = 7; Endometriosis + CoQ10, 100 mg/kg). At the end of the experiment, all the rats were sacrificed, and the volume and histoarchitecture of endometrial implants were evaluated. The mast cells were determined by Toluidine blue and collagen fiber density was analysed by Masson's Trichrome staining. Tumour necrosis factor and vascular endothelial growth factor (VEGF) levels were analysed by enzyme-linked immunosorbent assay in peritoneal fluid and VEGF and matrix metalloproteinase-9 (MMP-9) were evaluated by immunohistochemistry. Terminal deoxynucleotidil transferase-mediated dUTP Nick end labelling (TUNEL) was also used for the detection of apoptotic cells. The CoQ10 treatment significantly decreased the volume of endometriotic implants, VEGF, and MMP-9 immunoreactivity and increased TUNEL-positive cells. The findings of the study suggest that CoQ10 can be used in endometriosis treatment by suppressing the endometriotic implants.IMPACT STATEMENTWhat is already known on this subject? Endometriosis is a gynaecological disorder and previous studies have shown that different treatments with antioxidants cause significant regression in the endometriotic implants.What the results of this study add? In this study, CoQ10 reduced intra-abdominal adhesion scores and volume of the endometriotic implants. In addition, CoQ10 treatment affected mast cell, TNF-α, VEGF, and MMP-9.What of these findings for clinical practice and/or further research? CoQ10 treatments may be possible to apply, it can contribute to science in terms of a new therapeutic treatment for endometriosis. Further studies are required to evaluate the Coenzyme Q10's effects on pain and subfertility in endometriosis.
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Affiliation(s)
| | - Mürşide Ayşe Demirel
- Laboratory Animals Breeding and Experimental Researches Center, Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy Gazi University, Ankara, Turkey
| | - Neslihan Coşkun Akçay
- Department of Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Sipahi
- Department of Obstetrics and Gynecology, Giresun University Faculty of Medicine, Giresun, Turkey
| | - Lale Karakoç Sökmensüer
- Department of Histology and Embryology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Hakan Boyunaga
- Department of Medical Biochemistry, Faculty of Medicine, Kırıkkale University, Kırıkkale, Turkey
| | - Ayse Köylü
- Department of Histology and Embryology, İstinye University Faculty of Medicine, Ankara, Turkey
| | - Suna Ömeroğlu
- Department of Histology and Embryology, Gazi University Faculty of Medicine, Ankara, Turkey
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11
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Kwon JG, Park SH, Kwak JE, Cho JH, Kim G, Lee D, Kim DH, Kim HB, Lee JH. Mouse feeding study and microbiome analysis of sourdough bread for evaluation of its health effects. Front Microbiol 2022; 13:989421. [PMID: 36212840 PMCID: PMC9532698 DOI: 10.3389/fmicb.2022.989421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Sourdough bread fermented with yeast and lactic acid bacteria (LAB) is thought to have various beneficial health effects. However, its beneficial effects were not fully evaluated with in vivo mouse model. To evaluate these effects in vivo, a mouse feeding study and microbiome analysis of white bread containing 40% sourdough (WBS) and yeast-leavened white bread (WB) were performed. Although feed consumption and body weight increased with WBS, the glycemic index was reduced, suggesting a diabetes-lowering effect, probably due to the presence of dietary fiber and short-chain fatty acids (SCFA). In addition, a mineral absorption test showed that WBS increased magnesium absorption owing to phytate degradation during fermentation. Interestingly, WBS decreased total cholesterol and triglycerides, probably due to the dietary fiber and SCFA in LAB. In addition, the ratio of low- and high-density lipoprotein was decreased in WBS, implying potential risk reduction for cardiovascular disease. An immunomodulatory assay of WBS revealed that pro-inflammatory cytokines TNF-α and IL-6 were decreased, suggesting anti-inflammatory activity. Gluten degradation by fermentation and antioxidation activity of menaquinol/ubiquinol by gut microbiota also supported the anti-inflammatory activity of sourdough bread. Furthermore, some beneficial gut bacteria, including Akkermansia, Bifidobacterium, and Lactobacillus, were increased in WBS. In particular, Akkermansia has been associated with anti-inflammatory properties. Consequently, WBS has beneficial effects on health, including decreased glycemic index and cholesterol, increased mineral availability and absorption, anti-inflammatory properties, and establishment of healthy gut microbiota.
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Affiliation(s)
- Joon-Gi Kwon
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Sung-Hoon Park
- Department of Food and Nutrition, Gangneung-Wonju National University, Gangneung, South Korea
| | - Jeong-Eun Kwak
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - Jae Hyoung Cho
- Department of Animal Resource Science, Dankook University, Cheonan, South Korea
| | - Gooyoun Kim
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Deukbuhm Lee
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Dong Hyun Kim
- Research Institute of Food and Biotechnology, SPC Group Co., Seoul, South Korea
| | - Hyeun Bum Kim
- Department of Animal Resource Science, Dankook University, Cheonan, South Korea
| | - Ju-Hoon Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul, South Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, South Korea
- Center for Food and Bioconvergence, Seoul National University, Seoul, South Korea
- Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
- *Correspondence: Ju-Hoon Lee,
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12
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One-Year Changes in Urinary Microbial Phenolic Metabolites and the Risk of Type 2 Diabetes-A Case-Control Study. Antioxidants (Basel) 2022; 11:antiox11081540. [PMID: 36009259 PMCID: PMC9405292 DOI: 10.3390/antiox11081540] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022] Open
Abstract
The intake of polyphenols has been associated with a risk reduction of type 2 diabetes. Nevertheless, to the best of our knowledge, the molecules that might be metabolically active after ingestion are only starting to be investigated regarding this metabolic disease. To investigate the association between one-year changes in urinary microbial phenolic metabolites (MPM) and the incidence of type 2 diabetes, we performed a case-control study using data and samples of the PREDIMED trial including 46 incident type 2 diabetes cases of 172 randomly selected participants. Eight urinary MPMs were quantified in urine by liquid chromatography coupled to mass spectrometry and used to assess their associations with type 2 diabetes risk by multivariable logistic regression models. Compared to participants in the lowest tertile of one-year changes in hydroxybenzoic acid glucuronide, those in the highest tertile had a significantly lowered probability of developing type 2 diabetes (OR [95% CI], 0.39 [0.23−0.64]; p < 0.001 for trend). However, when additionally adjusting for fasting plasma glucose, the statistical significance was lost. Changes in the dietary pattern can increase the concentrations of this compound, derived from many (poly)phenol-rich foods, and might be changing the gut microbial population as well, promoting the production of the metabolite.
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13
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Gene Networks of Hyperglycemia, Diabetic Complications, and Human Proteins Targeted by SARS-CoV-2: What Is the Molecular Basis for Comorbidity? Int J Mol Sci 2022; 23:ijms23137247. [PMID: 35806251 PMCID: PMC9266766 DOI: 10.3390/ijms23137247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 12/10/2022] Open
Abstract
People with diabetes are more likely to have severe COVID-19 compared to the general population. Moreover, diabetes and COVID-19 demonstrate a certain parallelism in the mechanisms and organ damage. In this work, we applied bioinformatics analysis of associative molecular networks to identify key molecules and pathophysiological processes that determine SARS-CoV-2-induced disorders in patients with diabetes. Using text-mining-based approaches and ANDSystem as a bioinformatics tool, we reconstructed and matched networks related to hyperglycemia, diabetic complications, insulin resistance, and beta cell dysfunction with networks of SARS-CoV-2-targeted proteins. The latter included SARS-CoV-2 entry receptors (ACE2 and DPP4), SARS-CoV-2 entry associated proteases (TMPRSS2, CTSB, and CTSL), and 332 human intracellular proteins interacting with SARS-CoV-2. A number of genes/proteins targeted by SARS-CoV-2 (ACE2, BRD2, COMT, CTSB, CTSL, DNMT1, DPP4, ERP44, F2RL1, GDF15, GPX1, HDAC2, HMOX1, HYOU1, IDE, LOX, NUTF2, PCNT, PLAT, RAB10, RHOA, SCARB1, and SELENOS) were found in the networks of vascular diabetic complications and insulin resistance. According to the Gene Ontology enrichment analysis, the defined molecules are involved in the response to hypoxia, reactive oxygen species metabolism, immune and inflammatory response, regulation of angiogenesis, platelet degranulation, and other processes. The results expand the understanding of the molecular basis of diabetes and COVID-19 comorbidity.
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Preclinical and Clinical Role of Coenzyme Q10 Supplementation in Various Pathological States. Drug Res (Stuttg) 2022; 72:367-371. [PMID: 35724675 DOI: 10.1055/a-1835-1738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Coenzyme Q10 (CoQ10) is an efficient antioxidant produced endogenously in a living organism. It acts as an important cofactor in the electron transport system of mitochondria and reported as a safe supplement in humans and animals with minimal adverse effect. CoQ10 is found naturally, as a trans configuration, chemical nomenclature of which is 2,3- dimethoxy-5- methyl-6-decaprenyle -1,4-benzoquinone. It is found in the body in two forms. In quinone form (oxidized form), it serves as an electron transporter that transfers the electrons in the electron transport chain between various complexes, and in ubiquinol form (reduced form), it serves as potent antioxidants by scavenging free radicals or by tocopherol regeneration in the living organism. Its primary roles include synthesis of adenosine triphosphate (ATP), stabilizes lipid membrane, antioxidant activity, cell growth stimulation, and cell death inhibition. CoQ10 has shown a variety of pharmacological and clinical effects including neuroprotective, hepatoprotective, anti-atherosclerotic, anticonvulsant, antidepressant, anti-inflammatory, antinociceptive, cardiovascular, antimicrobial, immunomodulatory, and various effects on the central nervous system. Present review has set about to bring updated information regarding to clinical and preclinical activities of CoQ10, which may be helpful to researchers to explore a new bioactive molecules for various therapeutic application.
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15
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Barberino RS, Silva RLS, Palheta Junior RC, Smitz JEJ, Matos MHT. Protective Effects of Antioxidants on Cyclophosphamide-Induced Ovarian Toxicity. Biopreserv Biobank 2022; 21:121-141. [PMID: 35696235 DOI: 10.1089/bio.2021.0159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The most common limitation of anticancer chemotherapy is the injury to normal cells. Cyclophosphamide, which is one of the most widely used alkylating agents, can cause premature ovarian insufficiency and infertility since the ovarian follicles are extremely sensitive to their effects. Although little information is available about the pathogenic mechanism of cyclophosphamide-induced ovarian damage, its toxicity is attributed to oxidative stress, inflammation, and apoptosis. The use of compounds with antioxidant and cytoprotective properties to protect ovarian function from deleterious effects during chemotherapy would be a significant advantage. Thus, this article reviews the mechanism by which cyclophosphamide exerts its toxic effects on the different cellular components of the ovary, and describes 24 cytoprotective compounds used to ameliorate cyclophosphamide-induced ovarian injury and their possible mechanisms of action. Understanding these mechanisms is essential for the development of efficient and targeted pharmacological complementary therapies that could protect and prolong female fertility.
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Affiliation(s)
- Ricássio S Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Department of Veterinary Medicine, Federal University of São Francisco Valley-UNIVASF, Petrolina, Brazil
| | - Regina Lucia S Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Department of Veterinary Medicine, Federal University of São Francisco Valley-UNIVASF, Petrolina, Brazil
| | - Raimundo C Palheta Junior
- Laboratory of Veterinary Pharmacology, Department of Veterinary Medicine, Federal University of São Francisco Valley-UNIVASF, Petrolina, Brazil
| | - Johan E J Smitz
- Follicle Biology Laboratory, Center for Reproductive Medicine, Free University Brussels-VUB, Brussels, Belgium
| | - Maria Helena T Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Department of Veterinary Medicine, Federal University of São Francisco Valley-UNIVASF, Petrolina, Brazil
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16
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Lin YY, Mattison MJ, Priefer R. Beneficial effects of non-herbal supplements on patients with diabetes. Diabetes Metab Syndr 2022; 16:102510. [PMID: 35613489 DOI: 10.1016/j.dsx.2022.102510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND AIMS Controlling glycemic levels is crucial for patients with diabetes mellitus to improve their disease management and health outcomes. Beyond lifestyle modification and pharmacotherapy, some supplements have been shown to lower blood glucose as well as mitigate diabetic complications. METHODS Information was primarily gathered by employing various PubMed scholarly articles for real-world examples in addition to data extraction from supplementary manuscripts. Only original human trials were used, and those published within the past two decades were primarily chosen. However, background information may contains review articles. RESULTS Some non-herbal supplements have been suggested to lower fasting blood glucose, postprandial glucose, glycated glucose (HbA1c), lipid profiles, oxidative stress, and inflammation, as well as improving body composition, insulin sensitivity, blood pressure, and nephropathy. CONCLUSION This review discusses ten non-herbal supplements that have been reported to have beneficial effects among different types of patients with diabetes as well as potential future clinical application. However, more long-term studies with a larger amount and more diverse participants need to be conducted for a robust conclusion. Also, mechanisms of action of antidiabetic effects are poorly understood and need further research.
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Affiliation(s)
- Yuan-Yuan Lin
- Massachusetts College of Pharmacy and Health Sciences University, Boston, MA, USA
| | | | - Ronny Priefer
- Massachusetts College of Pharmacy and Health Sciences University, Boston, MA, USA.
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17
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Salama A, Asaad GF, Shaheen A. Chrysin ameliorates STZ-induced diabetes in rats: possible impact of modulation of TLR4/NF-κβ pathway. Res Pharm Sci 2021; 17:1-11. [PMID: 34909039 PMCID: PMC8621845 DOI: 10.4103/1735-5362.329921] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/19/2021] [Accepted: 11/01/2021] [Indexed: 12/14/2022] Open
Abstract
Background and purpose: Growing evidence advocates that upregulation of toll-like receptor 4 (TLR4) has been suggested as a causative influence in the development and complications of diabetes mellitus. We aimed to study the antidiabetic activity of chrysin against streptozotocin (STZ)-induced diabetes via down-regulation of TLR4/nuclear factor (NF-κβ)/heat shock protein 70 (HSP70) pathway as well as modulation of clusters of differentiation 4 (CD4+) in rats. Experimental approach: Fifty rats were divided into five groups (n = 10). Group I, normal rats received a single intraperitoneal injection of buffer citrate; group II, STZ-induced diabetic rats; groups III-V, diabetic rats received glimepiride (0.5 mg/kg; p.o.) or chrysin (40 and 80 mg/kg; p.o.) respectively, for 10 days. Serum samples were extracted to determine nitric oxide (NO), malondialdehyde (MDA), and reduced glutathione (GSH), insulin, CD4+, TLR4, and NF-κβ. Pancreatic tissue samples were extracted to determine glucose transporter 2 (GLUT2). Part of the pancreas was kept in formalin for pathological studies. Findings/Results: An elevation in blood glucose, NO, and MDA serum levels and a reduction of pancreatic GLUT2 content, insulin, and GSH serum levels were observed in diabetic rats. STZ injection, also, showed an increase in serum TLR4, NF-κβ, and HSP70 levels and a reduction in serum CD4+ levels with pancreatic cells necrosis. These biochemical and histological changes were reversed in glimepiride and chrysin groups. Conclusion and implications: The present study proved that chrysin has a potent anti-diabetic effect through the elevation of insulin and GLUT2 levels, the reduction of oxidative stress, and the inflammatory pathways TLR4/NF-κβ/HSP70 with the regulation of CD4+.
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Affiliation(s)
- Abeer Salama
- Department of Pharmacology, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622, Egypt
| | - Gihan F Asaad
- Department of Pharmacology, National Research Centre, 33 El Buhouth St., Dokki, Cairo, 12622, Egypt
| | - Aya Shaheen
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Egypt
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18
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Alesi S, Ee C, Moran LJ, Rao V, Mousa A. Nutritional Supplements and Complementary Therapies in Polycystic Ovary Syndrome. Adv Nutr 2021; 13:1243-1266. [PMID: 34970669 PMCID: PMC9340985 DOI: 10.1093/advances/nmab141] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/25/2021] [Accepted: 11/17/2021] [Indexed: 12/17/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) affects 1 in 5 women of reproductive age, and is characterized by menstrual irregularities, clinical or biochemical hyperandrogenism, and the presence of polycystic ovary morphology. One of the recommended treatment strategies in the international evidence-based guidelines is lifestyle modification, which includes diet and exercise, with the aim of improving a range of health outcomes. The incurable nature of PCOS reinforces the importance of developing novel and innovative symptomatic relief strategies, which are currently the only available approaches for improving quality of life for these women. Women with PCOS tend to be nutrient deficient in many common vitamins and minerals, thought to be associated with the psychological (depression, anxiety, etc.) and physiological (insulin resistance, diabetes, infertility, etc.) sequelae of the condition. Nutrient supplementation and the integration of complementary medicine as adjuncts to traditional lifestyle-based therapies in PCOS could therefore provide additional benefits to these women. In this review, we synthesize the evidence regarding nutrient supplementation and complementary therapies in PCOS, predominantly from randomized controlled trials, systematic reviews, and meta-analyses, to provide an overview of the state of knowledge in this field. The evidence to date suggests that specific vitamins (B-12, inositols, folate, vitamins D, E, and K), vitamin-like nutrients (bioflavonoids and α-lipoic acid), minerals (calcium, zinc, selenium, and chromium picolinate), and other formulations (melatonin, ω-3 fatty acids, probiotics, and cinnamon), as well as some complementary approaches such as acupuncture and yoga may be beneficial in PCOS. However, there remain areas of uncertainty and key limitations in the literature that must be overcome before these therapies can be integrated into routine clinical practice.
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Affiliation(s)
- Simon Alesi
- Monash Centre for Health Research and Implementation (MCHRI), Monash University, Clayton, Victoria, Australia
| | - Carolyn Ee
- The National Institute of Complementary Medicine, Health Research Institute, Western Sydney University, Penrith, New South Wales, Australia
| | - Lisa J Moran
- Monash Centre for Health Research and Implementation (MCHRI), Monash University, Clayton, Victoria, Australia
| | - Vibhuti Rao
- The National Institute of Complementary Medicine, Health Research Institute, Western Sydney University, Penrith, New South Wales, Australia
| | - Aya Mousa
- Address correspondence to AM (e-mail: )
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19
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Nephroprotective Effect of Coenzyme Q10 alone and in Combination with N-acetylcysteine in Diabetic Nephropathy. EUROPEAN PHARMACEUTICAL JOURNAL 2021. [DOI: 10.2478/afpuc-2020-0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Aim
Oxidative stress due to chronic hyperglycaemia is a key factor in the development and progression of various microvascular complications including diabetic nephropathy (DN) and associated renal injury. Treatment with antioxidants is one of the strategies to protect the kidney from oxidative tissue damage to improve renal physiology during DN. The investigation, therefore, was designed to assess the nephroprotective effect of coenzyme Q10 (CoQ10) and N-acetylcysteine (NAC), either alone or in combination in streptozotocin (STZ)-nicotinamide (NAD) induced diabetic nephropathy (DN) in rats.
Methods
T2DM induced by STZ (55 mg/kg, i.p.)-NAD (110 mg/kg, i.p.) in Sprague-Dawley rats (220–250 g) was confirmed by the elevated blood glucose level and glycated haemoglobin. DN was assessed by renal function tests. The diabetic rats were treated with CoQ10 (10 mg/kg, p.o.) and/or NAC (300 mg/kg, p.o.) for 8 weeks after confirmation of DN. Oxidative tissue damage due to STZ-NAD was estimated by malondialdehyde (MDA), superoxide dismutase (SOD) and catalase (CAT), reduced glutathione (GSH), myeloperoxidase (MPO) and nitric oxide (NO) in the renal homogenate.
Results
Data showed significant alteration in serum and urinary creatinine, total protein, albumin, serum urea, blood urea nitrogen (BUN) and uric acid in diabetic animals as compared to the control rats. CoQ10 and/or NAC effectively alleviated the disturbances in renal function. Diabetic rats showed increased MDA, decreased SOD and CAT activities and decreased GSH along with a significant increase in MPO activity and nitrite content. Treatment with the aforementioned antioxidants and their combination ameliorated the kidney damage as indicated by the reduced OS with improved renal function.
Conclusion
The investigation suggests that the chronic hyperglycaemia-induced OS leads to the development and progression of DN. The combined treatment with CoQ10 and NAC has shown a remarkable nephroprotective effect suggesting that combined antioxidant therapy with CoQ10 and NAC may be useful in the attenuation of DN.
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20
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Abstract
COPD represents a major cause of mortality and morbidity worldwide, is linked to systemic inflammation and tends to coexist with a variety of comorbidities. Inflammation, oxidative stress and protease-antiprotease imbalance represent the pathogenic triad of COPD. Even though oxidative stress and mitochondrial dysfunction is a well-studied phenomenon in COPD and there is a variety of studies that aim to counteract its effect, there is limited data available on the use of coenzyme Q10 in COPD. The aim of the current review is to analyze the current data on the use of coenzyme Q10 in the management of COPD and frequently encountered comorbidities.
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Affiliation(s)
- V I Zozina
- Department of Clinical Pharmacology and Propaedeutics of Internal Diseases, Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation, Moscow, Russian Federation
| | - S Covantev
- Russian Medical Academy of Continuous Professional Education, Moscow, Russian Federation
| | - V G Kukes
- Department of Clinical Pharmacology and Propaedeutics of Internal Diseases, Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov First Moscow State Medical University of the Ministry of Health of the Russian Federation, Moscow, Russian Federation
| | - A Corlateanu
- Department of Respiratory Medicine, State University of Medicine and Pharmacy N. Testemitanu, Chisinau, Republic of Moldova
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21
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Ahmed LA, Shiha NA, Attia AS. Escitalopram Ameliorates Cardiomyopathy in Type 2 Diabetic Rats via Modulation of Receptor for Advanced Glycation End Products and Its Downstream Signaling Cascades. Front Pharmacol 2021; 11:579206. [PMID: 33384599 PMCID: PMC7770111 DOI: 10.3389/fphar.2020.579206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/11/2020] [Indexed: 12/20/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) has been recognized as a known risk factor for cardiovascular diseases. Additionally, studies have shown the prevalence of depression among people with diabetes. Thus, the current study aimed to investigate the possible beneficial effects of escitalopram, a selective serotonin reuptake inhibitor, on metabolic changes and cardiac complications in type 2 diabetic rats. Diabetes was induced by feeding the rats high fat-high fructose diet (HFFD) for 8 weeks followed by a subdiabetogenic dose of streptozotocin (STZ) (35 mg/kg, i. p.). Treatment with escitalopram (10 mg/kg/day; p. o.) was then initiated for 4 weeks. At the end of the experiment, electrocardiography was performed and blood samples were collected for determination of glycemic and lipid profiles. Animals were then euthanized and heart samples were collected for biochemical and histopathological examinations. Escitalopram alleviated the HFFD/STZ-induced metabolic and cardiac derangements as evident by improvement of oxidative stress, inflammatory, fibrogenic and apoptotic markers in addition to hypertrophy and impaired conduction. These results could be secondary to its beneficial effects on the glycemic control and hence the reduction of receptor for advanced glycation end products content as revealed in the present study. In conclusion, escitalopram could be considered a favorable antidepressant medication in diabetic patients as it seems to positively impact the glycemic control in diabetes in addition to prevention of its associated cardiovascular complications.
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Affiliation(s)
- Lamiaa A Ahmed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nesma A Shiha
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Amina S Attia
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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22
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Ho CC, Chang PS, Chen HW, Lee PF, Chang YC, Tseng CY, Lin PT. Ubiquinone Supplementation with 300 mg on Glycemic Control and Antioxidant Status in Athletes: A Randomized, Double-Blinded, Placebo-Controlled Trial. Antioxidants (Basel) 2020; 9:antiox9090823. [PMID: 32899227 PMCID: PMC7555239 DOI: 10.3390/antiox9090823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/01/2020] [Accepted: 09/01/2020] [Indexed: 12/20/2022] Open
Abstract
The aim of this study is to investigate the glycemic profile, oxidative stress, and antioxidant capacity in athletes after 12 weeks of ubiquinone supplementation. It was a double-blinded, randomized, parallel, placebo-controlled study. Thirty-one well-trained college athletes were randomly assigned to ubiquinone (300 mg/d, n = 17) or placebo group (n = 14). The glycemic profile [fasting glucose, glycated hemoglobin (HbA1c), homeostatic model assessment-insulin resistance (HOMA-IR), quantitative insulin sensitivity check index (QUICKI)], plasma and erythrocyte malondialdehyde (MDA), total antioxidant capacity (TAC), and ubiquinone status were measured. After supplementation, the plasma ubiquinone concentration was significantly increased (p < 0.05) and the level of erythrocyte MDA was significantly lower in the ubiquinone group than in the placebo group (p < 0.01). There was a significant correlation between white blood cell (WBC) ubiquinone and glycemic parameters [HbA1c, r = −0.46, p < 0.05; HOMA-IR, r = −0.67, p < 0.01; QUICKI, r = 0.67, p < 0.01]. In addition, athletes with higher WBC ubiquinone level (≥0.5 nmol/g) showed higher erythrocyte TAC and QUICKI and lower HOMA-IR. In conclusion, we demonstrated that athletes may show a better antioxidant capacity with higher ubiquinone status after 12 weeks of supplementation, which may further improve glycemic control.
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Affiliation(s)
- Chien-Chang Ho
- Department of Physical Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan; (C.-C.H.); (P.-F.L.); (Y.-C.C.); (C.-Y.T.)
- Research and Development Center for Physical Education, Health, and Information Technology, College of Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan
| | - Po-Sheng Chang
- Department of Nutrition, Chung Shan Medical University, Taichung 402367, Taiwan; (P.-S.C.); (H.-W.C.)
- Graduate Program in Nutrition, Chung Shan Medical University, Taichung 402367, Taiwan
| | - Hung-Wun Chen
- Department of Nutrition, Chung Shan Medical University, Taichung 402367, Taiwan; (P.-S.C.); (H.-W.C.)
| | - Po-Fu Lee
- Department of Physical Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan; (C.-C.H.); (P.-F.L.); (Y.-C.C.); (C.-Y.T.)
- Graduate Institute of Sport Coaching Science, Chinese Culture University, Taipei City 111396, Taiwan
| | - Yun-Chi Chang
- Department of Physical Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan; (C.-C.H.); (P.-F.L.); (Y.-C.C.); (C.-Y.T.)
- Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei City 112304, Taiwan
| | - Ching-Yu Tseng
- Department of Physical Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan; (C.-C.H.); (P.-F.L.); (Y.-C.C.); (C.-Y.T.)
- Research and Development Center for Physical Education, Health, and Information Technology, College of Education, Fu Jen Catholic University, New Taipei City 242304, Taiwan
| | - Ping-Ting Lin
- Department of Nutrition, Chung Shan Medical University, Taichung 402367, Taiwan; (P.-S.C.); (H.-W.C.)
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung 402367, Taiwan
- Correspondence: ; Tel.: +886-4-24730022 (ext. 12187); Fax: +886-4-2324-8175
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Elshazly SM, Alsemeh AE, Ahmad EAA, Rezq S. CoQ10 exerts hepatoprotective effect in fructose-induced fatty liver model in rats. Pharmacol Rep 2020; 72:922-934. [PMID: 32157594 DOI: 10.1007/s43440-020-00075-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/02/2019] [Accepted: 12/30/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Excess dietary sugar is associated with deleterious metabolic effects, liver injury, and coenzyme-Q10 (CoQ10) deficiency. This study investigates the ability of CoQ10 to protect against fructose-induced hepatic damage. METHODS Rats were fed tap water or 30% fructose for 12 weeks with or without CoQ10 (10 mg/kg, po). An additional group of rats were allowed to feed on either water or 30% fructose for 12 weeks, followed by four weeks of treatment with either the vehicle or CoQ10. RESULTS Fructose-fed rats showed lower CoQ10 levels, increased systolic pressure, increased body weight, higher liquid consumption, decreased food intake and hyperglycemia. Fructose-fed rats also showed deteriorated serum and liver lipid profiles, impaired liver function tests and oxidative status, and lower expression of adiponectin receptor 1 and 2 along with higher GLUT-2 levels. Furthermore, following fructose treatment, tyrosine kinase-PI3K pathway was inhibited. Additionally, there was an increase in the levels of apoptotic markers and serum visfatin and a decrease in the levels of adiponectin and soluble receptor of the advanced glycated end product. Consequently, several histopathological changes were detected in the liver. Concurrent or three months post-exposure administration of CoQ10 in fructose rats significantly reversed or attenuated all the measured parameters and hepato-cytoarchitecture alterations. CONCLUSION This study suggests CoQ10 supplement as a possible prophylaxis or treatment candidate for fructose-induced liver injury.
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Affiliation(s)
- Shimaa M Elshazly
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Amira E Alsemeh
- Department of Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Enssaf A A Ahmad
- Department of Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Samar Rezq
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt. .,Department of Cell and Molecular Biology, UMMC, 2500 N state St., Jackson, MS, 39216, USA.
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El Basuini MF, Teiba II, Zaki MAA, Alabssawy AN, El-Hais AM, Gabr AA, Dawood MAO, Zaineldin AI, Mzengereza K, Shadrack RS, Dossou S. Assessing the effectiveness of CoQ10 dietary supplementation on growth performance, digestive enzymes, blood health, immune response, and oxidative-related genes expression of Nile tilapia (Oreochromis niloticus). FISH & SHELLFISH IMMUNOLOGY 2020; 98:420-428. [PMID: 32001349 DOI: 10.1016/j.fsi.2020.01.052] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/20/2020] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
The present study was conducted to investigate the effects of CoQ10 dietary supplementation on growth performance, feed utilization, blood profile, immune response, and oxidative status of Nile tilapia (12.4 ± 0.11 g, initial body weight). Five experimental diets were formulated containing CoQ10 at levels of 0, 10, 20, 30, 40 mg kg-1 diet (D1, D2, D3, D4, and D5, respectively). The results of a 56-days feeding trial showed that, significantly higher weight gain % (WG %), specific growth rate (SGR), feed intake (FI), and feed efficiency ratio (FER) were recorded in fish groups fed diets supplemented with different levels of CoQ10 than fish fed the control diet, while survival rate (SR%), condition factor (CF), hepatosomatic index (HSI) and viscerasomatic index (VSI) showed no obvious differences (P > 0.05) among all experimental groups. The highest activities of digestive enzymes (protease, amylase, and lipase) were recorded in D3, D4, and D5 groups. Moreover, blood status of all experimental fish was within normal rates and significant alterations were only in the case of glucose, cortisol, total cholesterol (T-Chol), triglycerides, and total protein (TP), where fish fed on D3, D4 and D5 diets exhibited lower values of glucose, cortisol, T-Chol, and triglycerides and higher values of TP. Furthermore, the lowest values of immune response [lysozyme, bactericidal, respiratory burst (NBT), and alternative complement pathway activities (ACP)], antioxidant capacity and oxidative related genes expressions [superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX)] resulted from feeding on the basal diet (D1) compared to CoQ10 diets, especially with its high levels {≥20 mg kg-1 diet (D3, D4, and D5)} in most cases. In conclusion, our results suggest that the use of ≥20 mg CoQ10 kg-1 diet improves the growth and health being of Nile tilapia.
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Affiliation(s)
- Mohammed F El Basuini
- Department of Animal Production, Faculty of Agriculture, Tanta University, 31527, Tanta, Egypt.
| | - Islam I Teiba
- Department of Animal Production, Faculty of Agriculture, Tanta University, 31527, Tanta, Egypt; The United Graduate School of Agriculture Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0056, Japan
| | | | | | - Abdelaziz M El-Hais
- Department of Animal Production, Faculty of Agriculture, Tanta University, 31527, Tanta, Egypt
| | - Ahmed A Gabr
- Department of Animal Production, Faculty of Agriculture, Tanta University, 31527, Tanta, Egypt
| | - Mahmoud A O Dawood
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, 33516, Kafr El-Sheikh, Egypt
| | | | - Kumbukani Mzengereza
- The United Graduate School of Agriculture Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0056, Japan
| | - Ronick S Shadrack
- The United Graduate School of Agriculture Sciences, Kagoshima University, 1-21-24 Korimoto, Kagoshima, 890-0056, Japan
| | - Serge Dossou
- Laboratoire d'Hydrobiologie et d'Aquaculture, Faculté des Sciences Agronomiques, Université d'Abomey Calavi, 01 BP 526, Cotonou, Benin
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Sharideh H, Zhandi M, Zeinoaldini S, Zaghari M, Sadeghi M. The effect of dietary coenzyme Q10 on plasma metabolites and hepatic gene expression in broiler breeder hens. Br Poult Sci 2020; 61:281-286. [PMID: 31973572 DOI: 10.1080/00071668.2020.1720908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. This study was performed to evaluate the effects of dietary supplementation of coenzyme Q10 (CoQ10) on laying rate, body weight, plasma metabolites and some liver gene expression in broiler breeder hens. 2. A total of 128 broiler breeder hens (Arbor Acres Plus, 47 weeks of age) were randomly distributed to four dietary groups supplemented with different levels of CoQ10 (0, 300, 600 or 900 mg/kg diet) with four replicates of eight hens each. During 47-54 weeks of age, laying rate, egg mass and body weight were recorded weekly. To assay plasma biochemical indicators, blood samples were collected at 54 weeks of age. At the end of the experiment, for evaluating the abdominal fat weight, liver weight and expression of the adiponectin and proliferator-activated receptor-α (PPAR-α) genes in the liver, eight hens per treatment were selected, weighed and humanely killed by decapitation. 3. Dietary supplementation of CoQ10 linearly decreased abdominal fat weight, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities by increased levels of CoQ10. The plasma levels of glucose, cholesterol and alkaline phosphatase (ALP) activity were quadratically decreased by increased levels of CoQ10. The best plasma levels of glucose, cholesterol and ALP activity were estimated at 562.5, 633.3 and 517.8 mg CoQ10/kg diet, respectively. Adiponectin and PPARα gene expression exhibited a linear increased by increased levels of CoQ10. 4. In conclusion, addition of CoQ10 to the diet influenced lipid metabolism and expression of the adiponectin and PPAR-α genes, which might be partially due to the improvement in mitochondrial metabolism and energy production. However, further studies are necessary to determine the effects of CoQ10 on these indicators in broiler breeder hens during ageing.
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Affiliation(s)
- H Sharideh
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - S Zeinoaldini
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Zaghari
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Sadeghi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
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Abdel-Rahman RF, Ezzat SM, Ogaly HA, Abd-Elsalam RM, Hessin AF, Fekry MI, Mansour DF, Mohamed SO. Ficus deltoidea extract down-regulates protein tyrosine phosphatase 1B expression in a rat model of type 2 diabetes mellitus: a new insight into its antidiabetic mechanism. J Nutr Sci 2020; 9:e2. [PMID: 32042410 PMCID: PMC6984126 DOI: 10.1017/jns.2019.40] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 12/14/2022] Open
Abstract
Ficus deltoidea var. deltoidea Jack (FD) is a well-known plant used in Malay folklore medicine to lower blood glucose in diabetic patients. For further research of the antihyperglycemic mechanisms, the protein tyrosine phosphatase 1B (PTP1B)-inhibitory effect of FD was analysed both in vitro and in vivo. To optimise a method for FD extraction, water, 50, 70, 80, 90 and 95 % ethanol extracts were prepared and determined for their total phenolic and triterpene contents, and PTP1B-inhibition capacity. Among the tested extracts, 70 % ethanol FD extract showed a significant PTP1B inhibition (92·0 % inhibition at 200 µg/ml) and high phenolic and triterpene contents. A bioassay-guided fractionation of the 70 % ethanol extract led to the isolation of a new triterpene (3β,11β-dihydroxyolean-12-en-23-oic acid; F3) along with six known compounds. In vivo, 4 weeks' administration of 70 % ethanol FD extract (125, 250 and 500 mg/kg/d) to streptozotocin-nicotinamide-induced type 2 diabetic rats reversed the abnormal changes of blood glucose, insulin, total Hb, GLUT2, lipid profile, and oxidative stress in liver and pancreas. Moreover, FD reduced the mRNA expression of the key gluconeogenic enzymes (phosphoenolpyruvate carboxykinase and glucose 6-phosphatase) and restored insulin receptor and GLUT2 encoding gene (Slc2a2) expression. In addition, FD significantly down-regulated the hepatic PTP1B gene expression. These results revealed that FD could potentially improve insulin sensitivity, suppress hepatic glucose output and enhance glucose uptake in type 2 diabetes mellitus through down-regulation of PTP1B. Together, our findings give scientific evidence for the traditional use of FD as an antidiabetic agent.
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Key Words
- CAT, catalase
- Dihydroxyolean-12-en-23-oic acid
- FBG, fasting blood glucose
- FD, Ficus deltoidea var. deltoidea Jack
- Ficus deltoidea
- G6Pase, glucose 6-phosphatase
- GPx, glutathione peroxidase
- GSH, reduced glutathione
- Glucose 6-phosphatase
- Glucose transporter-2
- MDA, malondialdehyde
- MET, metformin
- NA, nicotinamide
- PEPCK, phosphoenolpyruvate carboxykinase
- PTP, protein tyrosine phosphatase
- Phosphoenolpyruvate carboxykinase
- Protein tyrosine phosphatase 1B
- SOD, superoxide dismutase
- STZ, streptozotocin
- Slc2a2, GLUT2 gene
- T2DM, type 2 diabetes mellitus
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Affiliation(s)
| | - Shahira M. Ezzat
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Einy Street, Cairo11562, Egypt
- Pharmacognosy Department, Faculty of Pharmacy, October University for Modern Sciences and Arts, 6th October Campus, 12566, Egypt
| | - Hanan A. Ogaly
- Chemistry Department, College of Science, King Khalid University, Abha, Saudi Arabia
- Biochemistry Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Reham M. Abd-Elsalam
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Alyaa F. Hessin
- Pharmacology Department, National Research Centre, Giza, Egypt
- Microbiology and Immunology Department, College of Medicine, University of Illinois, Chicago, IL, USA
| | - Mostafa I. Fekry
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Kasr El-Einy Street, Cairo11562, Egypt
| | - Dina F. Mansour
- Pharmacology Department, National Research Centre, Giza, Egypt
| | - Shanaz O. Mohamed
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia
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27
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Nazary-Vannani A, Ghaedi E, Salamat S, Sayyaf A, Varkaneh HK, Mohammadi H, Djalali M. Effects of Coenzyme Q10 Supplementation on Serum Adiponectin Levels: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. CURRENT DRUG THERAPY 2020. [DOI: 10.2174/1574885514666190308162322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Background:
Adiponectin, a well-known adipokine plays a number of regulatory actions
in human body metabolism. Decreased levels of adiponectin have been reported in type 2 diabetes
mellitus, cardiovascular diseases, metabolic syndrome and hypertension. Coenzyme Q10 (Co Q10)
is a fat-soluble antioxidant substance which has been reported to be effective in several metabolic
disturbances such as insulin resistance and inflammation.
Objective:
Present systematic review and meta-analysis were performed to assess the effects of
CoQ10 supplementation on adiponectin serum level.
Methods:
A comprehensive search was performed in electronic databases including EMBASE,
Google scholar, and PubMed up to January 2018. A meta-analysis of eligible studies was performed
using random effects model to estimate pooled effect size of CoQ10 supplementation on adiponectin.
Results:
A total of 209 subjects were recruited from 5 eligible studies. Meta-analysis did not suggest
any significant effect of CoQ10 supplementation on adiponectin serum level (0.240 mg/dl,
95%CI: -0.216, 0.696, P= 0.303), without significant heterogeneity between included studies (I2=
40.9%, p= 0.149).
Conclusion:
Although present meta-analysis did not indicate any significant effects of CoQ10 supplementation
on serum adiponectin levels but future long-term dose-response trials are needed before
any firm conclusion.
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Affiliation(s)
- Ali Nazary-Vannani
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Shekoufeh Salamat
- Nutrition and Metabolic Disease Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Afsaneh Sayyaf
- Nutrition and Metabolic Disease Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hamed K. Varkaneh
- Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamed Mohammadi
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahmoud Djalali
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
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Samimi F, Baazm M, Eftekhar E, Rajabi S, Goodarzi MT, Jalali Mashayekhi F. Possible antioxidant mechanism of coenzyme Q10 in diabetes: impact on Sirt1/Nrf2 signaling pathways. Res Pharm Sci 2019; 14:524-533. [PMID: 32038732 PMCID: PMC6937743 DOI: 10.4103/1735-5362.272561] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Oxidative stress is a major complication in diabetes mellitus. The aim of this study was to investigate potential antioxidant activity of coenzyme Q10 (Co Q10) against hyperglycemia-induced oxidative stress in diabetic rat and unraveling its mechanism of action by focusing on silent information regulator 1 (Sirt1) and nuclear factor E2-related factor 2 (Nrf2) mRNA expression level. Furthermore, the activity of two Nrf2-dependent antioxidant enzymes (superoxide dismutase and catalase) in the liver of diabetic rats was studied. After induction of diabetes in rats using streptozotocin (55 mg/kg), rats were divided into five groups of six each. Groups 1 and 2 (healthy control groups) were injected with isotonic saline or sesame oil; group 3 received Co Q10 (10 mg /Kg /day), group 4, as a diabetic control, received sesame oil; and group 5 was diabetic rats treated with Co Q10. Afterwards, serum and liver samples were collected, and oxidative stress markers, lipid profile, as well as the expression of Sirt1 and Nrf2 genes were measured. Diabetes induction significantly reduced expression level of Sirt1 and Nrf2 mRNAs and also declined catalase, superoxide dismutase activities, and total thiol groups levels in diabetic group in comparison to healthy controls, while a significant increase was found in the levels of malondialdehyde and lipid profile. Co Q10 treatment significantly up-regulated Sirt1 and Nrf2 mRNA levels along with an increase in catalase activity in diabetic group as compared with untreated diabetic rats. Furthermore, Co Q10 caused a marked decrease in malondialdehyde levels and significantly improved lipid profile. Our data demonstrated that Co Q10 may exert its antioxidant activity in diabetes through the induction of Sirt1/Nrf2 gene expression.
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Affiliation(s)
- Fatemeh Samimi
- Department of Biochemistry and Genetics, School of Medicine, Arak University of Medical Sciences, Arak, I.R. Iran
| | - Maryam Baazm
- Department of Anatomy, School of Medicine, Arak University of Medical Sciences, Arak, I.R. Iran
| | - Ebrahim Eftekhar
- Endocrinology and Metabolism Research Center, Hormozgan University of Medical Sciences, Bandar Abbas, I.R. Iran
| | - Sadegh Rajabi
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, I.R. Iran
| | - Mohammad Taghi Goodarzi
- Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, I.R. Iran
| | - Farideh Jalali Mashayekhi
- Department of Biochemistry and Genetics, School of Medicine, Arak University of Medical Sciences, Arak, I.R. Iran.,Research Center and Molecular Medicine, Arak University of Medical Sciences, Arak, I.R. Iran
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Salah M, Azab M, Ramadan A, Hanora A. New Insights on Obesity and Diabetes from Gut Microbiome Alterations in Egyptian Adults. ACTA ACUST UNITED AC 2019; 23:477-485. [DOI: 10.1089/omi.2019.0063] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Mohammed Salah
- Department of Microbiology and Immunology, Faculty of Pharmacy, Port Said University, Port Said, Egypt
| | - Marwa Azab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ahmed Ramadan
- Department of Internal Medicine, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Amro Hanora
- Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Omidi G, Karimi SA, Shahidi S, Faraji N, Komaki A. Coenzyme Q10 supplementation reverses diabetes-related impairments in long-term potentiation induction in hippocampal dentate gyrus granular cells: An in vivo study. Brain Res 2019; 1726:146475. [PMID: 31560865 DOI: 10.1016/j.brainres.2019.146475] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 09/18/2019] [Accepted: 09/23/2019] [Indexed: 01/20/2023]
Abstract
Diabetes mellitus (DM) is associated with impaired hippocampal synaptic plasticity. Coenzyme Q10 (CoQ10) acts as an antioxidant and exerts neuroprotective effects. Accordingly, this study aimed at evaluating the effects of CoQ10 on hippocampal long-term potentiation (LTP) and paired-pulse facilitation (PPF) in streptozotocin (STZ)-induced diabetic rats. Male Wistar rats were randomly divided into six groups (n = 8 per group) as follows and treated for 90 days: the control, control + low dose of CoQ10 (100 mg/kg), control + high dose of CoQ10 (600 mg/kg), diabetic, diabetic + low dose of CoQ10, and diabetic + high dose of CoQ10 groups. Diabetes was induced by a single intraperitoneal injection of 50 mg/kg STZ. The population spike (PS) amplitude and slope of excitatory post synaptic potentials (EPSPs) were measured in dentate gyrus (DG) area in response to the stimulation applied to the perforant path (PP). The results showed that the STZ-induced diabetes impaired LTP induction in the PP-DG synapses. This finding is supported by the decreased EPSP slope and PS amplitude of LTP (P < 0.05). Both low- and high-dose CoQ10 supplementation in the control and diabetic animals enhanced EPSP slope and PS amplitude of LTP in the granular cells of DG (P < 0.05). PPF was affected by LTP induction in diabetic animals receiving the high dose of CoQ10 (P < 0.05). It is suggested that CoQ10 administration could attenuate deteriorative effect of STZ-induced diabetes on in vivo LTP in the DG. The enhanced transmitter release can be partly one of the possible underlying mechanism(s) responsible for the LTP induction in the diabetic animals treated with CoQ10.
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Affiliation(s)
- Ghazaleh Omidi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Seyed Asaad Karimi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran; Department of Neuroscience, School of Science and Advanced Technologies in Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Siamak Shahidi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Nafiseh Faraji
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran. https://umsha.ac.ir
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Effect of liquid ubiquinol supplementation on glucose, lipids and antioxidant capacity in type 2 diabetes patients: a double-blind, randomised, placebo-controlled trial. Br J Nutr 2019; 120:57-63. [PMID: 29936921 DOI: 10.1017/s0007114518001241] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Ubiquinone is a lipid antioxidant, and a novel liquid ubiquinol (a hydro-soluble, reduced form of coenzyme Q10) supplement was recently developed. The purpose of this study was to examine the levels of glucose, lipids and antioxidant capacity of type 2 diabetes patients after liquid ubiquinol supplementation. This study was designed as a randomised, double-blind, placebo-controlled trial. In all, fifty participants were randomly assigned to a placebo (n 25) or liquid ubiquinol (100 mg/d, n 25) group, and the intervention lasted for 12 weeks. Plasma coenzyme Q10, glucose homoeostasis parameters, lipid profiles, oxidative stress and antioxidative enzyme activities were measured during the study. After 12 weeks of supplementation, glyco Hb (HbA1c) value was significantly decreased in the liquid ubiquinol group (P=0·03), and subjects in the liquid ubiquinol group had significantly lower anti-glycaemic medication effect scores (MES) compared with those in the placebo group (P=0·03). The catalase (P<0·01) and glutathione peroxidase (P=0·03) activities were increased significantly after supplementation. Plasma coenzyme Q10 was correlated with the insulin level (P=0·05), homoeostatic model assessment-insulin resistance (P=0·07), quantitative insulin sensitivity check index (P=0·03) and the anti-hyperglycaemic agents' MES (P=0·03) after supplementation. Lipid profiles did not change after supplementation; however, the subjects in the placebo group had a significantly lower level of HDL-cholesterol after 12 weeks of intervention. In conclusion, oral intake of 100 mg/d liquid ubiquinol might benefit type 2 diabetes patients by increasing antioxidant enzyme activity levels, reducing HbA1c levels and maintaining HDL-cholesterol levels.
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32
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Short-term westernized (HFFD) diet fed in adolescent rats: Effect on glucose homeostasis, hippocampal insulin signaling, apoptosis and related cognitive and recognition memory function. Behav Brain Res 2019; 361:113-121. [DOI: 10.1016/j.bbr.2018.12.042] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/07/2018] [Accepted: 12/21/2018] [Indexed: 02/07/2023]
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Sun IO, Jin L, Jin J, Lim SW, Chung BH, Yang CW. The effects of addition of coenzyme Q10 to metformin on sirolimus-induced diabetes mellitus. Korean J Intern Med 2019; 34:365-374. [PMID: 29228766 PMCID: PMC6406080 DOI: 10.3904/kjim.2017.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 03/07/2017] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND/AIMS This study was performed to determine whether adding coenzyme Q10 (CoQ10) to metformin (MET) has a beneficial effect as a treatment for sirolimus (SRL)-induced diabetes mellitus (DM). METHODS DM was induced in rats by daily treatment with SRL (0.3 mg/kg, subcutaneous) for 28 days, and animals were treated with CoQ10 (20 mg/kg, oral) and MET (250 mg/kg, oral) alone or in combination for the latter 14 days of SRL treatment. The effects of CoQ10 and MET on SRL-induced DM were assessed with the intraperitoneal glucose tolerance test (IPGTT) and by determining plasma insulin concentration and the homeostatic model assessment of insulin resistance (HOMA-R) index. We also evaluated the effect of CoQ10 on pancreatic islet size, apoptosis, oxidative stress, and mitochondria morphology. RESULTS IPGTT revealed overt DM in SRL-treated rats. The addition of CoQ10 to MET further improved hyperglycemia, decreased HOMA-R index, and increased plasma insulin concentration compared with the SRL group than MET alone therapy. While SRL treatment induced smaller islets with decreased insulin staining intensity, the combination of CoQ10 and MET significantly improved insulin staining intensity, which was accompanied by a reduction in oxidative stress and apoptosis. In addition, co-treatment of CoQ10 and MET significantly increased the levels of antiperoxidative enzymes in the pancreas islet cells compared with MET. At the subcellular level, addition of CoQ10 to MET improved the average mitochondrial area and insulin granule number. CONCLUSION Addition of CoQ10 to MET has a beneficial effect on SRL-induced DM compared to MET alone.
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Affiliation(s)
- In O Sun
- Division of Nephrology, Department of Internal Medicine, Presbyterian Medical Center, Jeonju, Korea
| | - Long Jin
- Transplant Research Center, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Jian Jin
- Transplant Research Center, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Sun Woo Lim
- Transplant Research Center, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Byung Ha Chung
- Transplant Research Center, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Chul Woo Yang
- Transplant Research Center, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
- Correspondence to Chul Woo Yang, M.D. Transplant Research Center, College of Medicine, Seoul St. Mary’s Hospital, The Catholic University of Korea, 222 Banpo-daero, Seocho-gu, Seoul 06591, Korea Tel: +82-2-599-3589 Fax: +82-2-2258-1150 E-mail:
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Mantle D, Hargreaves I. Coenzyme Q10 and Degenerative Disorders Affecting Longevity: An Overview. Antioxidants (Basel) 2019; 8:antiox8020044. [PMID: 30781472 PMCID: PMC6406788 DOI: 10.3390/antiox8020044] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/09/2019] [Accepted: 02/12/2019] [Indexed: 12/16/2022] Open
Abstract
Longevity is determined by a number of factors, including genetic, environmental and lifestyle factors. A major factor affecting longevity is the development of degenerative disorders such as cardiovascular disease, diabetes, kidney disease and liver disease, particularly where these occur as co-morbidities. In this article, we review the potential role of supplementation with coenzyme Q10 (CoQ10) for the prevention or management of these disorders. Thus, randomised controlled clinical trials have shown supplementation with CoQ10 or CoQ10 plus selenium reduces mortality by approximately 50% in patients with cardiovascular disease, or in the normal elderly population, respectively. Similarly, CoQ10 supplementation improves glycaemic control and vascular dysfunction in type II diabetes, improves renal function in patients with chronic kidney disease, and reduces liver inflammation in patients with non-alcoholic fatty liver disease. The beneficial role of supplemental CoQ10 in the above disorders is considered to result from a combination of its roles in cellular energy generation, as an antioxidant and as an anti-inflammatory agent.
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Affiliation(s)
- David Mantle
- Pharma Nord (UK) Ltd., Telford Court, Morpeth, NE61 2DB Northumberland, UK.
| | - Iain Hargreaves
- School of Pharmacy, Liverpool John Moores University, L3 5UA Liverpool, UK.
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Gholami M, Zarei P, Sadeghi Sedeh B, Rafiei F, Khosrowbeygi A. Effects of coenzyme Q10 supplementation on serum values of adiponectin, leptin, 8-isoprostane and malondialdehyde in women with type 2 diabetes. Gynecol Endocrinol 2018; 34:1059-1063. [PMID: 29933718 DOI: 10.1080/09513590.2018.1481944] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
Patients with type 2 diabetes mellitus (T2DM) have been known to be suffering from coenzyme Q10 (CoQ10) deficiency which results in some complications in them. The purpose of this clinical trial study was to evaluate the effects of CoQ10 supplementation on serum values of adiponectin (A), leptin (L), 8-isoprostane, malondialdehyde (MDA), the A/L ratio in women with T2DM. Sixty-eight women with T2DM were enrolled in the current study and were randomly divided into drug (n = 34) and placebo (n = 34) groups who were consuming 100 mg CoQ10 and 100 mg cellulose acetate per day for 12 weeks, respectively. Measurements were performed at the beginning and after the intervention. Serum values of adiponectin (p = .001) and the A/L ratio (p = .001) were increased while values of leptin (p = .041), MDA (p = .023), 8-isoprostane (p = .004) were decreased significantly in drug group after intervention. This study had shown that CoQ10 supplementation in women with T2DM was effective in elevation of adiponectin and the A/L ratio and reduction of leptin, MDA and 8-isoprostane which could result in improving insulin resistance and modulating oxidative stress situation.
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Affiliation(s)
- Mahsa Gholami
- a Iran Student Research Committee , Arak University of Medical Sciences , Arak , Iran
| | - Parvin Zarei
- a Iran Student Research Committee , Arak University of Medical Sciences , Arak , Iran
| | - Bahman Sadeghi Sedeh
- b Endocrinology and Metabolism Research Center, Department of Social Medicine, School of Medicine , Arak University of Medical Sciences , Arak , Iran
| | - Fatemeh Rafiei
- c Endocrinology and Metabolism Research Center, Department of Biostatistics, School of Medicine , Arak University of Medical Sciences , Arak , Iran
| | - Ali Khosrowbeygi
- d Endocrinology and Metabolism Research Center, Department of Biochemistry and Genetics, School of Medicine , Arak University of Medical Sciences , Arak , Iran
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Zarei P, Rezvanfar MR, Ansarihadipour H, Delavar M, Abdollahi M, Khosrowbeygi A. Effects of coenzyme Q 10 supplementation on the serum levels of amylase, adenosine deaminase, catalase, and total antioxidant capacity in women with type 2 diabetes mellitus: A randomized, double-blind placebo-controlled trial. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2018; 23:91. [PMID: 30505329 PMCID: PMC6225443 DOI: 10.4103/jrms.jrms_970_17] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 05/07/2018] [Accepted: 07/02/2018] [Indexed: 01/24/2023]
Abstract
Background: Increased levels of reactive oxygen species is a key factor involved in the pathogenesis of type 2 diabetes mellitus (T2DM). Coenzyme Q10 (CoQ10) is a nonenzymatic antioxidant that restores other antioxidants. Materials and Methods: This randomized, double-blind placebo-controlled trial study has been designed to evaluate the effects of CoQ10 supplementation on serum values of amylase, adenosine deaminase, catalase (CAT), total antioxidant capacity (TAC) and the quantitative insulin sensitivity check index (QUICKI) in women with T2DM. Serum levels of CoQ10 were measured too. Sixty-eight women with T2DM were enrolled in this study and randomly divided into two groups. One group received 100 mg/day of CoQ10 supplement for 12 weeks (n = 34), and the other group was given placebo for the same time duration and dosage (n = 34). Results: After the intervention, serum CAT activity (P < 0.001), TAC (P = 0.006), CoQ10 (P = 0.001), and QUICKI (P = 0.005) increased and fasting blood sugar (FBS) (P = 0.05) decreased significantly in CoQ10 group. Conclusion: This study showed that daily supplementation with 100 mg of CoQ10 could increase TAC and CAT activity as, CoQ10 and QUICKI and could reduce oxidative stress and FBS in women with T2DM.
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Affiliation(s)
- Parvin Zarei
- Department of Biochemistry and Genetics, Student Research Committee, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mohammad Reza Rezvanfar
- Department of Internal Medicine, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Hadi Ansarihadipour
- Department of Biochemistry and Genetics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mostafa Delavar
- Department of Pharmacology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Mahdi Abdollahi
- Department of Control Laboratory of Food, Beverage, Decorative and Hygienic Products, Food and Drug Administration, Arak University of Medical Sciences, Arak, Iran
| | - Ali Khosrowbeygi
- Department of Biochemistry and Genetics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
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Effect of Coenzyme Q 10 on Insulin Resistance in Korean Patients with Prediabetes: A Pilot Single-Center, Randomized, Double-Blind, Placebo-Controlled Study. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1613247. [PMID: 30151373 PMCID: PMC6087610 DOI: 10.1155/2018/1613247] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 05/20/2018] [Accepted: 06/05/2018] [Indexed: 12/11/2022]
Abstract
Introduction This study aimed to examine whether administration of coenzyme Q10, an antioxidant, improves insulin resistance in patients with prediabetes. The study design was a pilot single-center, randomized, double-blind, placebo-controlled trial. Methods This pilot single-center, randomized, double-blind, placebo-controlled trial included a total of 80 adults (aged ≥20 years) with impaired glucose tolerance. After the initial screening visit, subjects were assigned to either the experimental (n = 40) or placebo (n = 40) group via simple randomization. Insulin resistance was represented as the insulin resistance index estimated by homeostasis model assessment (HOMA-IR). Results After the 8-week treatment period, the coenzyme group exhibited a significant decrease in the HOMA-IR (P < .001). The free oxygen radical and coenzyme Q10 concentrations were found to correlate significantly (P < .001). However, no significant changes in fasting blood glucose, insulin, and glycated hemoglobin levels were observed in either group. Additionally, no adverse events occurred in either group. Conclusion Patients with prediabetes who were administered coenzyme Q10 showed a significant reduction in HOMA-IR values. Therefore, administration of coenzyme Q10 in patients with impaired glucose tolerance may slow the progression from prediabetes to overt diabetes.
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Mohamed RA, Galal O, Mohammed AR, El-Abhar HS. Tropisetron modulates peripheral and central serotonin/insulin levels via insulin and nuclear factor kappa B/receptor for advanced glycation end products signalling to regulate type-2 diabetes in rats. RSC Adv 2018; 8:11908-11920. [PMID: 35539384 PMCID: PMC9079279 DOI: 10.1039/c7ra13105d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 03/05/2018] [Indexed: 01/27/2023] Open
Abstract
Despite its known central effect, 5% of serotonin is found centrally, while around 95% is found peripherally. Serotonin is stored and co-released with insulin upon pancreatic islets stimulation by glucose. This fact raises the curiosity regarding its possible role in diabetes. Hence, in this study, we assessed the possible modulatory effects of tropisetron, a 5-HT3 receptor antagonist, on type 2 diabetes mellitus models in rats. The rats were allocated into two groups: normal and diabetic. The latter group was treated with metformin (500 mg kg-1, p.o.), tropisetron (1 and 2 mg kg-1, i.p.), and a combination of metformin and tropisetron (1 mg kg-1). The different treatment regimens corrected glucose and lipid homeostasis manifested by the decrease in serum levels of glucose, fructosamine, homeostasis model of insulin resistance, triglycerides, total cholesterol, free fatty acid, as well as receptor for advanced glycation end products. Additionally, the treatments elevated levels of insulin, serotonin, and homeostasis model of β-cell function. On the molecular level, treatments corrected the altered insulin signaling cascade (phosphorylated insulin receptor substrate 1, phosphorylated protein kinase B, and glucose transporter 4), and inhibited β-catenin and phosphorylated nuclear factor kappa B p65 in the assessed soleus skeletal muscle. A similar pattern was duplicated in the hippocampus. This study provided evidence for the role of tropisetron on type 2 diabetes mellitus via modulating the insulin signaling cascade (insulin, phosphorylated insulin receptor substrate 1, phosphorylated protein kinase B, and glucose transporter 4), improving lipid/glucose profile, decreasing inflammatory markers (receptor for advanced glycation end products, and phosphorylated nuclear factor kappa B p65), as well as increasing 5-HT and reducing β-catenin.
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Affiliation(s)
- Reem Ali Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) 26 July Mehwar Road Intersection with Wahat Road 6th October City Cairo 12566 Egypt +20-002-01224611087
| | - Omneya Galal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) 26 July Mehwar Road Intersection with Wahat Road 6th October City Cairo 12566 Egypt +20-002-01224611087
| | - Ahmed Refaat Mohammed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA) 26 July Mehwar Road Intersection with Wahat Road 6th October City Cairo 12566 Egypt +20-002-01224611087
| | - Hanan Salah El-Abhar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University Cairo Egypt
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Rahmani E, Jamilian M, Samimi M, Zarezade Mehrizi M, Aghadavod E, Akbari E, Tamtaji OR, Asemi Z. The effects of coenzyme Q10 supplementation on gene expression related to insulin, lipid and inflammation in patients with polycystic ovary syndrome. Gynecol Endocrinol 2018; 34:217-222. [PMID: 28949260 DOI: 10.1080/09513590.2017.1381680] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 09/15/2017] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE This research was conducted to assess the effects of coenzyme Q10 (CoQ10) intake on gene expression related to insulin, lipid and inflammation in subjects with polycystic ovary syndrome (PCOS). METHODS This randomized double-blind, placebo-controlled trial was conducted on 40 subjects diagnosed with PCOS. Subjects were randomly allocated into two groups to intake either 100 mg CoQ10 (n = 20) or placebo (n = 20) per day for 12 weeks. Gene expression related to insulin, lipid and inflammation were quantified in blood samples of PCOS women with RT-PCR method. RESULTS Results of RT-PCR shown that compared with the placebo, CoQ10 intake downregulated gene expression of oxidized low-density lipoprotein receptor 1 (LDLR) (p < 0.001) and upregulated gene expression of peroxisome proliferator-activated receptor gamma (PPAR-γ) (p = 0.01) in peripheral blood mononuclear cells of subjects with PCOS. In addition, compared to the placebo group, CoQ10 supplementation downregulated gene expression of interleukin-1 (IL-1) (p = 0.03), interleukin-8 (IL-8) (p = 0.001) and tumor necrosis factor alpha (TNF-α) (p < 0.001) in peripheral blood mononuclear cells of subjects with PCOS. CONCLUSIONS Overall, CoQ10 intake for 12 weeks in PCOS women significantly improved gene expression of LDLR, PPAR-γ, IL-1, IL-8 and TNF-α.
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Affiliation(s)
- Elham Rahmani
- a Department of Gynecology and Obstetrics, School of Medicine , Bushehr University of Medical Sciences , Bushehr , Iran
| | - Mehri Jamilian
- b Endocrinology and Metabolism Research Center, Department of Gynecology and Obstetrics , School of Medicine, Arak University of Medical Sciences , Arak , Iran
| | - Mansooreh Samimi
- c Department of Gynecology and Obstetrics, School of Medicine , Kashan University of Medical Sciences , Kashan , Iran
| | - Maryam Zarezade Mehrizi
- c Department of Gynecology and Obstetrics, School of Medicine , Kashan University of Medical Sciences , Kashan , Iran
| | - Esmat Aghadavod
- d Research Center for Biochemistry and Nutrition in Metabolic Diseases , Kashan University of Medical Sciences , Kashan , Iran
| | - Elmira Akbari
- e Physiology Research Center , Kashan University of Medical Sciences , Kashan , Iran
| | - Omid Reza Tamtaji
- e Physiology Research Center , Kashan University of Medical Sciences , Kashan , Iran
| | - Zatollah Asemi
- d Research Center for Biochemistry and Nutrition in Metabolic Diseases , Kashan University of Medical Sciences , Kashan , Iran
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Fazakerley DJ, Chaudhuri R, Yang P, Maghzal GJ, Thomas KC, Krycer JR, Humphrey SJ, Parker BL, Fisher-Wellman KH, Meoli CC, Hoffman NJ, Diskin C, Burchfield JG, Cowley MJ, Kaplan W, Modrusan Z, Kolumam G, Yang JY, Chen DL, Samocha-Bonet D, Greenfield JR, Hoehn KL, Stocker R, James DE. Mitochondrial CoQ deficiency is a common driver of mitochondrial oxidants and insulin resistance. eLife 2018; 7:32111. [PMID: 29402381 PMCID: PMC5800848 DOI: 10.7554/elife.32111] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/02/2018] [Indexed: 12/11/2022] Open
Abstract
Insulin resistance in muscle, adipocytes and liver is a gateway to a number of metabolic diseases. Here, we show a selective deficiency in mitochondrial coenzyme Q (CoQ) in insulin-resistant adipose and muscle tissue. This defect was observed in a range of in vitro insulin resistance models and adipose tissue from insulin-resistant humans and was concomitant with lower expression of mevalonate/CoQ biosynthesis pathway proteins in most models. Pharmacologic or genetic manipulations that decreased mitochondrial CoQ triggered mitochondrial oxidants and insulin resistance while CoQ supplementation in either insulin-resistant cell models or mice restored normal insulin sensitivity. Specifically, lowering of mitochondrial CoQ caused insulin resistance in adipocytes as a result of increased superoxide/hydrogen peroxide production via complex II. These data suggest that mitochondrial CoQ is a proximal driver of mitochondrial oxidants and insulin resistance, and that mechanisms that restore mitochondrial CoQ may be effective therapeutic targets for treating insulin resistance. After we eat, our blood sugar levels increase. To counteract this, the pancreas releases a hormone called insulin. Part of insulin’s effect is to promote the uptake of sugar from the blood into muscle and fat tissue for storage. Under certain conditions, such as obesity, this process can become defective, leading to a condition known as insulin resistance. This condition makes a number of human diseases more likely to develop, including type 2 diabetes. Working out how insulin resistance develops could therefore unveil new treatment strategies for these diseases. Mitochondria – structures that produce most of a cell’s energy supply – appear to play a role in the development of insulin resistance. Mitochondria convert nutrients such as fats and sugars into molecules called ATP that fuel the many processes required for life. However, ATP production can also generate potentially harmful intermediates often referred to as ‘reactive oxygen species’ or ‘oxidants’. Previous studies have suggested that an increase in the amount of oxidants produced in mitochondria can cause insulin resistance. Fazakerley et al. therefore set out to identify the reason for increased oxidants in mitochondria, and did so by analysing the levels of proteins and oxidants found in cells grown in the laboratory, and mouse and human tissue samples. This led them to find that concentrations of a molecule called coenzyme Q (CoQ), an essential component of mitochondria that helps to produce ATP, were lower in mitochondria from insulin-resistant fat and muscle tissue. Further experiments suggested a link between the lower levels of CoQ and the higher levels of oxidants in the mitochondria. Replenishing the mitochondria of the lab-grown cells and insulin-resistant mice with CoQ restored ‘normal’ oxidant levels and prevented the development of insulin resistance. Strategies that aim to increase mitochondria CoQ levels may therefore prevent or reverse insulin resistance. Although CoQ supplements are readily available, swallowing CoQ does not efficiently deliver CoQ to mitochondria in humans, so alternative treatment methods must be found. It is also of interest that statins, common drugs taken by millions of people around the world to lower cholesterol, also lower CoQ and have been reported to increase the risk of developing type 2 diabetes. Further research is therefore needed to investigate whether CoQ might provide the link between statins and type 2 diabetes.
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Affiliation(s)
- Daniel J Fazakerley
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Rima Chaudhuri
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Pengyi Yang
- School of Mathematics and Statistics, University of Sydney, Camperdown, Australia
| | - Ghassan J Maghzal
- Vascular Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, Australia
| | - Kristen C Thomas
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - James R Krycer
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Sean J Humphrey
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Benjamin L Parker
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Kelsey H Fisher-Wellman
- Duke Molecular Physiology Institute, Duke University School of Medicine, Durham, United States
| | - Christopher C Meoli
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Nolan J Hoffman
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Ciana Diskin
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - James G Burchfield
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia
| | - Mark J Cowley
- The Kinghorn Cancer Centre, Garvan Institute of Medical Research, Darlinghurst, Australia
| | - Warren Kaplan
- Peter Wills Bioinformatics Centre, Garvan Institute of Medical Research, Darlinghurst, Australia
| | | | | | - Jean Yh Yang
- School of Mathematics and Statistics, University of Sydney, Camperdown, Australia
| | - Daniel L Chen
- Garvan Institute of Medical Research, Darlinghurst, Australia
| | | | | | - Kyle L Hoehn
- School of Biotechnology and Biomedical Sciences, University of New South Wales, Sydney, Australia
| | - Roland Stocker
- Vascular Biology Division, Victor Chang Cardiac Research Institute, Darlinghurst, Australia.,St Vincent's Clinical School, University of New South Wales, Sydney, Australia
| | - David E James
- Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Camperdown, Australia.,Charles Perkins Centre, Sydney Medical School, University of Sydney, Camperdown NSW, Australia
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Huang H, Chi H, Liao D, Zou Y. Effects of coenzyme Q 10 on cardiovascular and metabolic biomarkers in overweight and obese patients with type 2 diabetes mellitus: a pooled analysis. Diabetes Metab Syndr Obes 2018; 11:875-886. [PMID: 30568475 PMCID: PMC6276825 DOI: 10.2147/dmso.s184301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The potential effects of coenzyme Q10 (CoQ10) supplementation in overweight/obese patients with type 2 diabetes mellitus are not fully established. In this article, we aimed to perform a pooled analysis to investigate the effects of CoQ10 intervention on cardiovascular disease (CVD) risk factors in overweight/obese patients with type 2 diabetes mellitus (T2DM). METHODS MEDLINE, Embase, and Cochrane databases were searched for randomized controlled trials that evaluated the changes in CVD risk factors among overweight and obese patients with T2DM following CoQ10 supplementation. Two investigators independently assessed articles for inclusion, extracted data, and assessed risk of bias. Major endpoints were synthesized as weighted mean differences (WMDs) with 95% CIs. Subgroup analyses were performed to check the consistency of effect sizes across groups. Publication bias and sensitivity analysis were also performed. RESULTS Fourteen eligible trials with 693 overweight/obese diabetic subjects were included for pooling. CoQ10 interventions significantly reduced fasting blood glucose (FBG; -0.59 mmol/L; 95% CI, -1.05 to -0.12; P=0.01), hemoglobin A1c (HbA1c; -0.28%; 95% CI-0.53 to -0.03; P=0.03), and triglyceride (TG) levels (0.17 mmol/L; 95% CI, -0.32 to -0.03; P=0.02). Subgroup analysis also showed that low-dose consumption of CoQ10 (<200 mg/d) effectively reduces the values of FBG, HbA1c, fasting blood insulin, homeostatic model assessment of insulin resistance, and TG. CoQ10 treatment was well tolerated, and no drug-related adverse reactions were reported. CONCLUSION Our findings provide substantial evidence that daily CoQ10 supplementation has beneficial effects on glucose control and lipid management in overweight and obese patients with T2DM.
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Affiliation(s)
- Haohai Huang
- Department of Clinical Pharmacy, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China
| | - Honggang Chi
- Department of Traditional Chinese Medicine, Scientific Research Platform, The Second Clinical Medical College, Guangdong Medical University, Dongguan, China,
| | - Dan Liao
- Department of Gynaecology & Obstetrics, Dongguan Third People's Hospital, Affiliated Dongguan Shilong People's Hospital of Southern Medical University, Dongguan, Guangdong, China,
| | - Ying Zou
- Department of Traditional Chinese Medicine, Scientific Research Platform, The Second Clinical Medical College, Guangdong Medical University, Dongguan, China,
- Key Laboratory for Medical Molecular Diagnostics of Guangdong Province, Guangdong Medical University, Dongguan, Guangdong, China,
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Zhang SY, Yang KL, Zeng LT, Wu XH, Huang HY. Effectiveness of Coenzyme Q10 Supplementation for Type 2 Diabetes Mellitus: A Systematic Review and Meta-Analysis. Int J Endocrinol 2018; 2018:6484839. [PMID: 30305810 PMCID: PMC6165589 DOI: 10.1155/2018/6484839] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 07/26/2018] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To evaluate the effectiveness and safety of coenzyme Q10 for patients with type 2 diabetes mellitus (T2DM). METHODS Data from randomized controlled trials were obtained to assess the effects of coenzyme Q10 versus placebo or western medicine on patients with T2DM. The study's registration number is CRD42018088474. The primary outcomes included glycosylated hemoglobin, fasting blood glucose, and fasting insulin. RESULT Thirteen trials involving 765 patients were included. Compared with the control group, coenzyme Q10 may decrease the HbA1c (WMD -0.29; 95% CI -0.54, -0.03; P = 0.03) and the fasting blood glucose (WMD -11.21; 95% CI -18.99, -3.43; P = 0.005). For fasting insulin, there is also not strong evidence that confirms which one is better because there was no statistical difference (WMD -0.48; 95% CI -2.54, 1.57; P = 0.65). CONCLUSION Based on current evidence, coenzyme Q10 may assist glycemic control, decrease TG, and improve HDL-C in patients with T2DM.
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Affiliation(s)
- Shi-ying Zhang
- Hunan University of Chinese Medicine, Changsha 410208, China
- Jiangxi Provincial People's Hospital, Nanchang 330006, China
| | - Kai-lin Yang
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Liu-ting Zeng
- Hunan University of Chinese Medicine, Changsha 410208, China
| | - Xiao-he Wu
- Jiangxi Provincial People's Hospital, Nanchang 330006, China
| | - Hui-yong Huang
- Hunan University of Chinese Medicine, Changsha 410208, China
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Gholnari T, Aghadavod E, Soleimani A, Hamidi GA, Sharifi N, Asemi Z. The Effects of Coenzyme Q10 Supplementation on Glucose Metabolism, Lipid Profiles, Inflammation, and Oxidative Stress in Patients With Diabetic Nephropathy: A Randomized, Double-Blind, Placebo-Controlled Trial. J Am Coll Nutr 2017; 37:188-193. [DOI: 10.1080/07315724.2017.1386140] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Tahereh Gholnari
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Esmat Aghadavod
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Alireza Soleimani
- Department of Internal Medicine, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Gholam Ali Hamidi
- Physiology Research Center, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Nasrin Sharifi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R. Iran
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Abd El-Aal SA, Abd El-Fattah MA, El-Abhar HS. CoQ10 Augments Rosuvastatin Neuroprotective Effect in a Model of Global Ischemia via Inhibition of NF-κB/JNK3/Bax and Activation of Akt/FOXO3A/Bim Cues. Front Pharmacol 2017; 8:735. [PMID: 29081748 PMCID: PMC5645536 DOI: 10.3389/fphar.2017.00735] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/29/2017] [Indexed: 12/12/2022] Open
Abstract
Statins were reported to lower the Coenzyme Q10 (CoQ10) content upon their inhibition of HMG-CoA reductase enzyme and both are known to possess neuroprotective potentials; therefore, the aim is to assess the possible use of CoQ10 as an adds-on therapy to rosuvastatin to improve its effect using global I/R model. Rats were allocated into sham, I/R, rosuvastatin (10 mg/kg), CoQ10 (10 mg/kg) and their combination. Drugs were administered orally for 7 days before I/R. Pretreatment with rosuvastatin and/or CoQ10 inhibited the hippocampal content of malondialdehyde, nitric oxide, and boosted glutathione and superoxide dismutase. They also opposed the upregulation of gp91phox, and p47phox subunits of NADPH oxidase. Meanwhile, both agents reduced content/expression of TNF-α, iNOS, NF-κBp65, ICAM-1, and MPO. Besides, all regimens abated cytochrome c, caspase-3 and Bax, but increased Bcl-2 in favor of cell survival. On the molecular level, they increased p-Akt and its downstream target p-FOXO3A, with the inhibition of the nuclear content of FOXO3A to downregulate the expression of Bim, a pro-apoptotic gene. Additionally, both treatments downregulate the JNK3/c-Jun signaling pathway. The effect of the combination regimen overrides that of either treatment alone. These effects were reflected on the alleviation of the hippocampal damage in CA1 region inflicted by I/R. Together, these findings accentuate the neuroprotective potentials of both treatments against global I/R by virtue of their rigorous multi-pronged actions, including suppression of hippocampal oxidative stress, inflammation, and apoptosis with the involvement of the Akt/FOXO3A/Bim and JNK3/c-Jun/Bax signaling pathways. The study also nominates CoQ10 as an adds-on therapy with statins.
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Affiliation(s)
- Sarah A Abd El-Aal
- Department of Pharmacology and Toxicology, October 6 University, Cairo, Egypt
| | - Mai A Abd El-Fattah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hanan S El-Abhar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Samimi M, Zarezade Mehrizi M, Foroozanfard F, Akbari H, Jamilian M, Ahmadi S, Asemi Z. The effects of coenzyme Q10 supplementation on glucose metabolism and lipid profiles in women with polycystic ovary syndrome: a randomized, double-blind, placebo-controlled trial. Clin Endocrinol (Oxf) 2017; 86:560-566. [PMID: 27911471 DOI: 10.1111/cen.13288] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/21/2016] [Accepted: 11/27/2016] [Indexed: 12/22/2022]
Abstract
BACKGROUND Data on the effects of coenzyme Q10 (CoQ10) supplementation on metabolic profiles among subjects with polycystic ovary syndrome (PCOS) are scarce. OBJECTIVE This study was carried out to evaluate the effects of CoQ10 supplementation on glucose metabolism and lipid profiles in subjects with PCOS. DESIGN, PATIENTS AND MEASUREMENTS This randomized, double-blind, placebo-controlled trial was conducted on 60 women diagnosed with PCOS. Subjects were randomly assigned into two groups to intake either 100 mg CoQ10 supplements (N = 30) or placebo (N = 30) per day for 12 weeks. Markers of insulin metabolism and lipid profiles were assessed at first and 12 weeks after the intervention. RESULTS After 12 weeks of intervention, compared to the placebo, subjects who received CoQ10 supplements had significantly decreased fasting plasma glucose (-0·24 ± 0·51 vs +0·01 ± 0·44 mmol/l, P = 0·04), serum insulin concentrations (-7·8 ± 14·4 vs +6·0 ± 15·0 pmol/l, P < 0·001), the homeostasis model of assessment-estimated insulin resistance (-0·3 ± 0·6 vs +0·2 ± 0·6, P = 0·001), the homeostasis model of assessment-estimated B-cell function (-5·4 ± 9·5 vs +4·5 ± 9·9, P < 0·001) and increased the quantitative insulin sensitivity check index (+0·006 ± 0·009 vs -0·006 ± 0·01, P < 0·001). In addition, changes in serum total- (-0·10 ± 0·48 vs +0·19 ± 0·50 mmol/l, P = 0·02) and LDL-cholesterol concentrations (-0·15 ± 0·40 vs +0·14 ± 0·49 mmol/l, P = 0·01) in supplemented women were significantly different from those of women in the placebo group. When we adjusted the analysis for baseline values of biochemical parameters, age and baseline BMI, serum LDL-cholesterol (P = 0·05) became nonsignificant, and other findings did not alter. CONCLUSIONS Overall, CoQ10 supplementation for 12 weeks among subjects with PCOS had beneficial effects on glucose metabolism, serum total- and LDL-cholesterol levels.
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Affiliation(s)
- Mansooreh Samimi
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Maryam Zarezade Mehrizi
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Foroozanfard
- Department of Gynecology and Obstetrics, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Hossein Akbari
- Department of Biostatistics and Epidemiology, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehri Jamilian
- Endocrinology and Metabolism Research Center, Department of Gynecology and Obstetrics, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Shahnaz Ahmadi
- Department of Gynecology and Obstetrics, School of Medicine, Bushehr University of Medical Sciences, Bushehr, Iran
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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Aldakinah AAA, Al-Shorbagy MY, Abdallah DM, El-Abhar HS. Trigonelline and vildagliptin antidiabetic effect: improvement of insulin signalling pathway. J Pharm Pharmacol 2017; 69:856-864. [DOI: 10.1111/jphp.12713] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Accepted: 01/26/2017] [Indexed: 01/09/2023]
Abstract
Abstract
Objectives
Trigonelline (TRG) is known to have an antidiabetic efficacy; however, its mechanism is not entirely elucidated.
Methods
Hence, its effect on insulin signaling, besides its effectiveness in combination with vildagliptin (VLD) in a Type 2 diabetes model has been tested.
Key findings
TRG (50 mg/kg; p.o) lowered serum glucose, fructosamine, insulin, and HOMA-IR index and increased insulin sensitivity in soleus muscle via augmenting insulin receptor autophosphorylation (IR-PH), pT308-Akt, and glucose transporter 4 (GLUT4). Additionally, it reduced muscle advanced glycation end products and lipid peroxides with increased glutathione. TRG showed an anti-lipidemic effect lowering serum and/or muscle total cholesterol, triglycerides, and FFAs to decrease body weight, and visceral/epididymal indices. Furthermore, VLD (3 and 10 mg/kg, p.o) increased IR-PH, pT308-Akt, and GLUT4 to improve insulin signaling. The combined effect of TRG with the low dose of VLD was mostly confined to the reduction of the aberrant lipid profile.
Conclusions
The beneficial effect of TRG on insulin sensitivity and glucose/ lipid homeostasis is mediated by the enhancement of the insulin signaling and antioxidant property. Moreover, the positive impact of VLD on pT308-Akt is an integral part in insulin signaling, and hence its antidiabetic effect.
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Affiliation(s)
| | - Muhammad Y Al-Shorbagy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Dalaal M Abdallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hanan S El-Abhar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Saleh DO, Ahmed RF, Amin MM. Modulatory role of Co-enzyme Q10 on methionine and choline deficient diet-induced non-alcoholic steatohepatitis (NASH) in albino rats. Appl Physiol Nutr Metab 2017; 42:243-249. [DOI: 10.1139/apnm-2016-0320] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The present study aimed to evaluate the hepato-protective and neuro-protective activity of Co-enzyme Q10 (CoQ10) on non-alcoholic steatohepatitis (NASH) in albino rats induced by methionine and choline-deficient (MCD) diet. Rats were fed an MCD diet for 8 weeks to induce non-alcoholic steatohepatitis. CoQ10 (10 mg/(kg·day)−1) was orally administered for 2 consecutive weeks. Twenty-four hours after the last dose of the drug, the behavioral test, namely the activity cage test, was performed and the activity counts were recorded. Serum alanine transaminase, aspartate aminotransferase, alkaline phosphatase, gamma-glutamyl transferase, total/direct bilirubin, and albumin were valued to assess liver function. Moreover, hepatic cytokines interleukin-6 as well as its modulator nuclear factor kappa-light-chain-enhancer of activated B cells were determined. In addition, brain biomarkers, viz ammonia, nitric oxide, and brain-derived neurotrophic factor (BDNF), were measured as they are reliable indices to assess brain damage. Histopathological and immunohistochemical examination of brain proliferating cell nuclear antigen in brain and liver tissues were also evaluated. Results revealed that MCD-induced NASH showed impairment in the liver functions with an increase in the liver inflammatory markers. Moreover, NASH resulted in pronounced brain dysfunction as evidenced by hyper-locomotor activity, a decrease in the BDNF level, as well as an increase in the brain nitric oxide and ammonia contents. Oral treatment of MCD-diet−fed rats with CoQ10 for 14 days showed a marked improvement in all the assigned parameters. Finally, it can be concluded that CoQ10 has a hepatoprotective and neuroprotective role in MCD-diet−induced NASH in rats.
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Affiliation(s)
- Dalia O. Saleh
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Rania F. Ahmed
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Mohamed M. Amin
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
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Amin MM, Arbid MS. Estimation of ellagic acid and/or repaglinide effects on insulin signaling, oxidative stress, and inflammatory mediators of liver, pancreas, adipose tissue, and brain in insulin resistant/type 2 diabetic rats. Appl Physiol Nutr Metab 2017; 42:181-192. [DOI: 10.1139/apnm-2016-0429] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Even though ellagic acid has previously been valued in many models of cancer, so far its full mechanistic effect as a natural antiapoptotic agent in the prevention of type 2 diabetes complications has not been completely elucidated, which was the goal of this study. We fed albino rats a high-fat fructose diet (HFFD) for 2 months to induce insulin resistance/type 2 diabetes and then treated the rats with ellagic acid (10 mg/kg body weight, orally) and/or repaglinide (0.5 mg/kg body weight, orally) for 2 weeks. At the serum level, ellagic acid challenged the consequences of HFFD, significantly improving the glucose/insulin balance, liver enzymes, lipid profile, inflammatory cytokines, redox level, adipokines, ammonia, and manganese. At the tissue level (liver, pancreas, adipose tissue, and brain), ellagic acid significantly enhanced insulin signaling, autophosphorylation, adiponectin receptors, glucose transporters, inflammatory mediators, and apoptotic markers. Remarkably, combined treatment with both ellagic acid and repaglinide had a more pronounced effect than treatment with either alone. These outcomes give new insight into the promising molecular mechanisms by which ellagic acid modulates numerous factors induced in the progression of diabetes.
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Affiliation(s)
- Mohamed M. Amin
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Mahmoud S. Arbid
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
- Department of Pharmacology, Medical Division, National Research Centre, 33 EL Bohouth St., Dokki, Giza 12622, Egypt
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Tarry-Adkins JL, Fernandez-Twinn DS, Madsen R, Chen JH, Carpenter A, Hargreaves IP, McConnell JM, Ozanne SE. Coenzyme Q10 Prevents Insulin Signaling Dysregulation and Inflammation Prior to Development of Insulin Resistance in Male Offspring of a Rat Model of Poor Maternal Nutrition and Accelerated Postnatal Growth. Endocrinology 2015; 156. [PMID: 26214037 PMCID: PMC4869840 DOI: 10.1210/en.2015-1424] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Low birth weight and rapid postnatal growth increases the risk of developing insulin resistance and type 2 diabetes in later life. However, underlying mechanisms and potential intervention strategies are poorly defined. Here we demonstrate that male Wistar rats exposed to a low-protein diet in utero that had a low birth weight but then underwent postnatal catch-up growth (recuperated offspring) had reductions in the insulin signaling proteins p110-β (13% ± 6% of controls [P < .001]) and insulin receptor substrate-1 (39% ± 10% of controls [P < .05]) in adipose tissue. These changes were not accompanied by any change in expression of the corresponding mRNAs, suggesting posttranscriptional regulation. Recuperated animals displayed evidence of a proinflammatory phenotype of their adipose tissue with increased IL-6 (139% ± 8% [P < .05]) and IL1-β (154% ± 16% [P < .05]) that may contribute to the insulin signaling protein dysregulation. Postweaning dietary supplementation of recuperated animals with coenzyme Q (CoQ10) (1 mg/kg of body weight per day) prevented the programmed reduction in insulin receptor substrate-1 and p110-β and the programmed increased in IL-6. These findings suggest that postweaning CoQ10 supplementation has antiinflammatory properties and can prevent programmed changes in insulin-signaling protein expression. We conclude that CoQ10 supplementation represents an attractive intervention strategy to prevent the development of insulin resistance that results from suboptimal in utero nutrition.
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Affiliation(s)
- Jane L Tarry-Adkins
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Denise S Fernandez-Twinn
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Ralitsa Madsen
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Jian-Hua Chen
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Asha Carpenter
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Iain P Hargreaves
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Josie M McConnell
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
| | - Susan E Ozanne
- University of Cambridge Metabolic Research Laboratories and Medical Research Council Metabolic Diseases Unit (J.L.T.-A., D.S.F.-T., R.M., J.-H.C., A.C., J.M.M., S.E.O.), Wellcome Trust-Medical Research Council Institute of Metabolic Science, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Cambridge CB2 OQQ, United Kingdom; and Neurometabolic Unit (I.P.H.), National Hospital, University College London, London WC1N 3BG, United Kingdom
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50
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The effects of coenzyme Q10 administration on glucose homeostasis parameters, lipid profiles, biomarkers of inflammation and oxidative stress in patients with metabolic syndrome. Eur J Nutr 2015; 55:2357-2364. [PMID: 26385228 DOI: 10.1007/s00394-015-1042-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 09/10/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Limited data are available indicating the effects of coenzyme Q10 (CoQ10) supplementation on metabolic status of patients with metabolic syndrome (MetS). PURPOSE The present study was conducted to determine the effects of CoQ10 administration on glucose homeostasis parameters, lipid profiles, biomarkers of inflammation and oxidative stress among patients with MetS. METHODS This randomized, double-blind, placebo-controlled trial was performed among 60 overweight or obese and type 2 diabetes mellitus patients with coronary heart disease aged 40-85 years old. Participants were randomly allocated into two groups. Group A (n = 30) received 100 mg CoQ10 supplements and group B (n = 30) received placebo for 8 weeks. Fasting blood samples were taken at the beginning of the study and after 8-week intervention to quantify glucose homeostasis parameters, lipid profiles and biomarkers of inflammation and oxidative stress. RESULTS Compared with the placebo, CoQ10 supplementation resulted in a significant reduction in serum insulin levels (-2.1 ± 7.1 vs. +4.1 ± 7.8 µIU/mL, P = 0.002) and homeostasis model of assessment-insulin resistance (-0.7 ± 2.1 vs. +1.0 ± 2.0, P = 0.002) and homeostatic model assessment-beta cell function (-5.9 ± 22.2 vs. +15.9 ± 34.0, P = 0.005). In addition, patients who received CoQ10 supplements had a significant increase in plasma total antioxidant capacity (TAC) concentrations (+26.0 ± 105.0 vs. -162.2 ± 361.8 mmol/L, P = 0.008) compared with the placebo group. However, after adjustment for the baseline levels, age and baseline BMI, the effect on TAC levels (P = 0.08) disappeared. Additionally, compared with the placebo group, a significant positive trends in plasma glutathione (P = 0.06) and a significant reduction in malondialdehyde (P = 0.08) were seen among patients who received CoQ10 supplement. We did not observe any significant changes in fasting plasma glucose, lipid concentrations and inflammatory markers. CONCLUSIONS Overall, daily intake of 100 mg CoQ10 supplements among patients with MetS for 8 weeks had beneficial effects on serum insulin levels, HOMA-IR, HOMA-B and plasma TAC concentrations. CLINICAL TRIAL REGISTRATION NUMBER www.irct.ir : IRCT201502245623N35.
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