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Đukić L, Trajković L, Knežević T, Dimitrijević J, Krstić D, Stojanović M. The Effect of α-lipoic Acid on C-Reactive Protein Level: A Meta-analysis of Randomized, Double-Blind, and Placebo-Controlled Studies. Dose Response 2022; 20:15593258221126827. [PMID: 36262716 PMCID: PMC9575455 DOI: 10.1177/15593258221126827] [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] [Indexed: 11/15/2022] Open
Abstract
The C-reactive protein is generally considered a marker of inflammation, and it is widely used in clinical practice as a minimally invasive index of any ongoing inflammatory response. Alpha-lipoic acid (ALA) supplementation can be beneficial for human health, especially in the sense of its anti-inflammatory action. The aim of this meta-analysis was to, based on the currently available highest level of evidence (prospective, randomized, double-blind, and placebo-controlled data), investigate the effect of ALA supplementation on CRP levels. Prospective, randomized, double-blind, and placebo-controlled clinical trials were extracted after a systematic search of PubMed, the Cochrane Library, the Web of Science, EMBASE, and the Scopus databases. A random effect model was used in this meta-analysis to investigate the influence of ALA on the blood CRP level. The subgroup analysis and meta-regression were used to identify the source of heterogeneity. This meta-analysis provided evidence of the positive effect of ALA on the reduction of the blood CRP level. The subgroup analysis and meta-regression results indicated that ALA can reduce the CRP level when administrated at a 600 mg dose, and not in higher or lower doses. Also, a shorter duration of study positively correlates with the reduction of CRP after ALA supplementation.
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Affiliation(s)
- Ljiljana Đukić
- School of Dental Medicine,
Department of Pharmacology in Dentistry, University of
Belgrade, Belgrade, Serbia
| | - Lazar Trajković
- Faculty of Medicine,
University of
Belgrade, Belgrade, Serbia
| | - Tamara Knežević
- Department of Gastroenterology,
University
Hospital Zvezdara, Belgrade,
Serbia
| | | | - Danijela Krstić
- Faculty of Medicine, Institute of
Medical Chemistry, University of Belgrade, Belgrade,
Serbia
| | - Marko Stojanović
- Faculty of Medicine, Department of
Pharmacology, University of Belgrade, Clinical
Pharmacology and Toxicology, Belgrade, Serbia,Marko Stojanović, Department of
Pharmacology, Clinical Pharmacology and Toxicology, Faculty of Medicine,
University of Belgrade, Dr Subotica 1, Belgrade 11129, Serbiatel.
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2
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Abulnaja KO, Kannan K, Al-Manzlawi AMK, Kumosani TA, Qari M, Moselhy SS. Sensitivity, specificity of biochemical markers for early prediction of endothelial dysfunction in atherosclerotic obese subjects. Afr Health Sci 2022; 22:286-294. [PMID: 36407366 PMCID: PMC9652627 DOI: 10.4314/ahs.v22i2.32] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND The obesity increased incidence of diabetes, hypertension and atherosclerosis and rate of morbidity and mortality. The main cause of atherosclerosis is endothelial dysfunction and formation of foam cells and macrophage that lead to unfavorable complications. This study evaluated specific biomarkers for endothelial dysfunction as sensitive indices for early predication of atherosclerosis in obese subjects. STUDY DESIGN One hundred fifty male age and sex matching were included in the current study divided into three groups according to body mass index (BMI): Control (BMI ≤ 22), obese (BMI> 28) and obese with atherosclerosis (BMI> 28). Fasting serum was subjected for determination of adhesion molecules, sICAM-1, sVCAM-1, E-selectin, oxo-LDL and 8-iso-PGF2α by ELISA technique. RESULTS Data obtained showed that, a significant elevation of serum inflammatory markers CRP, IL-6 and TNF-α and adhesion molecules sICAM-1 (p<0.001) with sensitivity 96%, sVCAM-1 (p <0.01) with sensitivity 92%, E-selectin (p<0.001) with sensitivity 94%, oxo-LDL (p <0.05) and 8-iso-PGF2α (p < 0.001) with sensitivity 97% in obese with atherosclerosis compared with obese and control. CONCLUSION The levels of serum adhesion molecules contributed in the pathogenesis of endothelial dysfunction can be used as sensitive biomarkers for early prediction of atherosclerosis in obese subjects.
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Affiliation(s)
- Khalid O Abulnaja
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Experimental Biochemistry Unit, King Fahd Medical Research Center, KAU
| | - Kurunthachalam Kannan
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pediatric, New York, University School of medicine, New York, NY 10016, USA
| | | | - Taha A Kumosani
- Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Experimental Biochemistry Unit, King Fahd Medical Research Center, KAU
- Production of Bio-products for Industrial Applications Research Group, KAU
| | - Mohamed Qari
- Department of Hematology, Faculty of Medical Science, King Abdulaziz University, Jeddah
| | - Said S Moselhy
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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3
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Jeffrey S, Isaac Samraj P, Sundara Raj B. Therapeutic Benefits of Alpha-Lipoic Acid Supplementation in Diabetes Mellitus: A Narrative Review. J Diet Suppl 2021; 19:566-586. [PMID: 34939534 DOI: 10.1080/19390211.2021.2020387] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Elevated oxidative stress is a common denominator between pathways implicated in the pathogenesis of diabetes mellitus and diabetes complications, prompting the use of antioxidant compounds in diabetes therapy. Alpha-lipoic acid (ALA), has been investigated for its role as a potent antioxidant in diabetes treatment and the results from clinical trials indicate improved glucose metabolism, reduced oxidative stress, improved endothelial dysfunction, a decline in platelet reactivity and moderate improvements to weight loss yet conflicting data regarding insulin metabolism. ALA inhibits nuclear factor kappa B (NFkB), chelates divalent transient metal ions and induces the expression of adenosine monophosphate-activated protein kinase (AMPK). This narrative review explores the results from clinical trials investigating the role of ALA in the treatment of diabetes mellitus.
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Affiliation(s)
- Sarah Jeffrey
- Endeavour College of Natural Health, Perth, WA, Australia
| | | | - Behin Sundara Raj
- School of Pharmacy and Biomedical Sciences, Curtin University, Perth, WA, Australia
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4
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Vajdi M, Mahmoudi-Nezhad M, Farhangi MA. An updated systematic review and dose-response meta-analysis of the randomized controlled trials on the effects of Alpha-Lipoic acid supplementation on inflammatory biomarkers. INT J VITAM NUTR RES 2021; 93:164-177. [PMID: 33827267 DOI: 10.1024/0300-9831/a000702] [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: 11/19/2022]
Abstract
Data about the effects of alpha-lipoic acid (ALA) supplementation on inflammatory markers are inconsistent. This systematic review and dose-response meta-analysis of randomized controlled trials was performed to summarize the effects of ALA supplementation on inflammatory markers such as C-reactive protein (CRP), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in adults. A comprehensive literature search was conducted in the electronic databases of PubMed, Web of Science, ProQuest, Embase, and SCOPUS from inception to February 2020. Among all of the eligible studies, 20 articles were selected. The weighted mean differences (WMD) and 95% confidence intervals (CI) were calculated to evaluate the pooled effect size. Between-study heterogeneity was evaluated using Cochran's Q test and I2. Subgroup analysis was done to evaluate the potential sources of heterogeneity. The dose-response relationship was evaluated using fractional polynomial modeling. Twenty eligible studies with a total sample size of 947 participants were included in the current meta-analysis. The findings of the meta-analysis showed that ALA supplementation significantly reduced CRP (WMD: -0.69 mg/L, 95% CI: -1.13, -0.26, P=0.002), IL-6 (WMD: -1.83 pg/ml, 95% CI: -2.90, -0.76, P=0.001), and TNF-α concentrations (WMD: -0.45 pg/ml, 95% CI: -0.85, -0.04, P=0.032). No evidence of departure from linearity was observed between dose and duration of the ALA supplementation on serum CRP, IL-6 and TNF-α concentration. In subgroup analysis, ALA dosage, baseline concentrations of the parameter, sample size, and gender were considered as possible sources of heterogeneity. In summary, ALA supplementation improves inflammatory markers without any evidence of non-linear association to dose or duration of the trial.
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Affiliation(s)
- Mahdi Vajdi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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5
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Safety Evaluation of α-Lipoic Acid Supplementation: A Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Studies. Antioxidants (Basel) 2020; 9:antiox9101011. [PMID: 33086555 PMCID: PMC7603186 DOI: 10.3390/antiox9101011] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/10/2020] [Accepted: 10/15/2020] [Indexed: 12/21/2022] Open
Abstract
Alpha-lipoic acid (ALA) is a natural short-chain fatty acid that has attracted great attention in recent years as an antioxidant molecule. However, some concerns have been recently raised regarding its safety profile. To address the issue, we aimed to assess ALA safety profile through a systematic review of the literature and a meta-analysis of the available randomized placebo-controlled clinical studies. The literature search included EMBASE, PubMed Medline, SCOPUS, Google Scholar, and ISI Web of Science by Clarivate databases up to 15th August 2020. Data were pooled from 71 clinical studies, comprising 155 treatment arms, which included 4749 subjects with 2558 subjects treated with ALA and 2294 assigned to placebo. A meta-analysis of extracted data suggested that supplementation with ALA was not associated with an increased risk of any treatment-emergent adverse event (all p > 0.05). ALA supplementation was safe, even in subsets of studies categorized according to smoking habit, cardiovascular disease, presence of diabetes, pregnancy status, neurological disorders, rheumatic affections, severe renal impairment, and status of children/adolescents at baseline.
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6
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Honjo M, Yasuhide O, Yamada M, Higuchi S, Mishima K, Sharmin T, Aida TM, Kato T, Misumi M, Suetsugu T, Orii H, Irie K, Sano K, Mishima K, Satho T, Harada T. Characterization and pharmacokinetic evaluation of microcomposite particles of alpha lipoic acid/hydrogenated colza oil obtained in supercritical carbon dioxide. Pharm Dev Technol 2019; 25:359-365. [PMID: 30632427 DOI: 10.1080/10837450.2019.1567760] [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: 10/27/2022]
Abstract
The work reported here is an extension of our previous findings in which supercritical composite particles (SCP) of alpha lipoic acid (ALA) masked with hydrogenated colza oil (HCO) named as ALA/HCO/SCP were obtained by the modified particles from gas-saturated solutions (PGSS) process in supercritical carbon dioxide in order to obscure the unpleasant taste and odor of ALA. The masking effect on ALA/HCO/SCP was compared with the widely used mechano-chemically masked formulation of ALA and HCO named as MC-50F. In the present study, ALA/HCO/SCP particles were found to have a significant improvement in regard to bitterness, numbness, and smell compared to ALA bulk powders suggesting they were well coated. The pharmacokinetic parameters for ALA/HCO/SCP and ALA bulk powder gave similar values but were significantly different from those of MC-50F. The amount of ALA absorbed into the body, in the administered ALA/HCO/SCP, was comparable to that absorbed by ALA bulk powder, whereas about half portion of ALA of the MC-50F was not absorbed, because the ALA/HCO/SCP particles were small enough and the particles of MC-50F were relatively large and had smaller specific surface area. Therefore, this study suggested a newly masked candidate may offer functional particles with maintained efficacy.
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Affiliation(s)
- Masatoshi Honjo
- Formulation Technology Group Functional Food Research Institute FANCL Research Institute FANCL Corporation, Yokohama, Japan.,Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan
| | - Okuhara Yasuhide
- Functional Evaluation Group Health Science Research Center FANCL Research Institute FANCL Corporation, Yokohama, Japan
| | - Masayoshi Yamada
- Materials Research Group Health Science Research Center FANCL Research Institute FANCL Corporation, Yokohama, Japan
| | - Sei Higuchi
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kenji Mishima
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Tanjina Sharmin
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Taku Michael Aida
- Research Institute of Composite Materials, Fukuoka University, Fukuoka, Japan.,Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Takafumi Kato
- Department of Chemical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Makoto Misumi
- Department of Electronics Engineering and Computer Science Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Tadashi Suetsugu
- Department of Electronics Engineering and Computer Science Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Hideaki Orii
- Department of Electrical Engineering Faculty of Engineering, Fukuoka University, Fukuoka, Japan
| | - Keiichi Irie
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kazunori Sano
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Kenichi Mishima
- Department of Neuropharmacology Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Tomomitsu Satho
- Department of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan
| | - Takunori Harada
- Department of Applied Chemistry Faculty of Engineering, Oita University, Oita, Japan
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7
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Haghighatdoost F, Hariri M. The effect of alpha-lipoic acid on inflammatory mediators: a systematic review and meta-analysis on randomized clinical trials. Eur J Pharmacol 2019; 849:115-123. [DOI: 10.1016/j.ejphar.2019.01.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 01/13/2019] [Accepted: 01/17/2019] [Indexed: 12/21/2022]
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8
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Karkabounas S, Papadopoulos N, Anastasiadou C, Gubili C, Peschos D, Daskalou T, Fikioris N, Simos YV, Kontargiris E, Gianakopoulos X, Ragos V, Chatzidimitriou M. Effects of α-Lipoic Acid, Carnosine, and Thiamine Supplementation in Obese Patients with Type 2 Diabetes Mellitus: A Randomized, Double-Blind Study. J Med Food 2018; 21:1197-1203. [PMID: 30311825 DOI: 10.1089/jmf.2018.0007] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is evolving to an epidemic of the modern world. T2DM is associated with a number of pathological complications, including cardiovascular disease that is mostly promoted by the increased oxidative stress in type 2 diabetic patients. We performed a randomized double-blind placebo-controlled trial to investigate the effectiveness of an individualized oral supplementation with α-lipoic acid (ALA), carnosine, and thiamine. For that purpose, 82 obese type 2 diabetic patients were randomly assigned to 2 groups, and were either supplemented daily with 7 mg ALA/kg body weight, 6 mg carnosine/kg body weight, and 1 mg thiamine/kg body weight or placebo for 8 weeks. An array of biochemical tests including the estimation of oxidative stress and platelet aggregation were performed at baseline and at follow-up. Moreover, the antiplatelet activity of each of the supplement's components was determined ex vivo at human and washed rabbit platelets. Glucose and HbA1c levels were significantly reduced after supplementation (135.7 ± 19.5 mg/dL vs. 126.5 ± 16.8 mg/dL and 8.3% ± 0.3% vs. 6.03% ± 0.58%, respectively, P < .05); however, insulin was significantly increased (3.6 ± 0.7 μIU/mL vs. 6.8 ± 0.2 μIU/mL, P < .05). The patients treated with the supplement recorded higher follow-up values for HOMA-IR and HOMA-β, and a significant drop in serum hydroperoxide level. Only ALA inhibited platelets aggregation ex vivo through ADP, platelet activating factor, arachidonic acid, epinephrine, collagen, and thrombin pathways. Daily supplementation with an individualized ALA, carnosine, and thiamine supplement effectively reduced glucose concentration in type 2 diabetic patients, probably by increasing insulin production from the pancreas. In addition to that, the reduction of oxidative stress and inhibition of platelet aggregation could potentially provide greater cardiovascular protection. Further studies are needed to fine-tune the supplementation dose-response effects in T2DM patients.
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Affiliation(s)
- Spyridon Karkabounas
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece
| | - Nikolaos Papadopoulos
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece
| | - Chryssa Anastasiadou
- 2 Hellenic Agricultural Organization, Fisheries Research Institute , Kavala, Greece
| | - Chrysoula Gubili
- 2 Hellenic Agricultural Organization, Fisheries Research Institute , Kavala, Greece
| | - Dimitrios Peschos
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece
| | | | - Nikolaos Fikioris
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece
| | - Yannis V Simos
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece
| | - Evangelos Kontargiris
- 1 Department of Physiology, Faculty of Medicine, School of Health Sciences; Medical Department; University of Ioannina , Ioannina, Greece .,4 Department of Nursing, Epirus Institute of Technology (T.E.I. of Epirus) , Ioannina, Greece
| | | | - Vasilios Ragos
- 6 Clinic of Maxillofacial Surgery, Medical Department; University of Ioannina , Ioannina, Greece
| | - Maria Chatzidimitriou
- 7 Medical Laboratories, Alexander Technological Institute of Thessaloniki , Thessaloniki, Greece
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9
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Fatahi S, Kord Varkaneh H, Teymouri A, Azadbakht L. Beneficiary effect of a-lipoic acid supplementation on C-reactive protein level among adults. ACTA ACUST UNITED AC 2018. [DOI: 10.1108/nfs-03-2018-0082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
Clinical evidence has suggested that alpha-lipoic acid (ALA), a potent antioxidant, seems to have some effects on inflammatory process. However, these results are equivocal. The purpose of this paper is to investigate the nature of association between ALA and serum C-reactive protein (CRP) level by pooling the results from clinical trial studies.
Design/methodology/approach
Relevant studies were identified by systematic literature search of PubMed/MEDLINE, Scopus, Web of Sciences and Cochrane library up to September 2016 for randomized controlled trials (RCTs) evaluating the impact of ALA supplementation on CRP. The pooled data were summarized as weighted mean difference (WMD) and 95 per cent confidence interval (CI). Effect sizes of eligible studies were pooled using random- or fixed-effects (the DerSimonian–Laird estimator) depending on the results of heterogeneity tests.
Findings
Of 212 papers, 15 were eligible RCTs according to inclusion criteria. The selected studies comprised 1,408 cases and 457 controls. The dose of ALA supplement ranged from 300 to 1,200 mg, and the duration of follow-up was from 1 to 48 weeks. ALA supplementation significantly reduced the levels of circulating CRP (WMD: −0.088, 95 per cent CI: −0.131, −0.045, p < 0.001) with significant heterogeneity (I2 = 73.4 per cent, p < 0.001). Populations with age younger than 50 years (PMD: −0.060 mg/dl), receiving doses less than 600 mg/day (PMD: −0.057 mg/dl), having cardiovascular disease (PMD: −0.105 mg/dl), hemodialysis (PMD: −0.209 mg/dl), diabetes (PMD: −0.021 mg/dl) and otherwise healthy subjects (PMD: −0.045 mg/dl) were sources of heterogeneity.
Originality/Value
This meta-analysis of RCTs suggests that ALA supplementation seems to significantly reduce circulating CRP level.
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Saboori S, Falahi E, Eslampour E, Zeinali Khosroshahi M, Yousefi Rad E. Effects of alpha-lipoic acid supplementation on C-reactive protein level: A systematic review and meta-analysis of randomized controlled clinical trials. Nutr Metab Cardiovasc Dis 2018; 28:779-786. [PMID: 29753588 DOI: 10.1016/j.numecd.2018.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 04/03/2018] [Accepted: 04/09/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND AIM The aim of this meta-analysis was to assess effects of alpha-lipoic acid supplementation on C-reactive protein (CRP) levels in clinical trial studies. METHODS AND RESULTS A systematic search was carried out on clinical trial studies published in PubMed, ISI Web of Science, Cochrane Library and Scopus databases completed by manual search on reference list of eligible studies accomplished by November 4, 2017. Of a total number of 508 studies found in the first step of literature search, only 11 were included with 264 participants in supplementation groups and 287 in control groups. Estimated pooled random effects size analysis showed a significant reducing effect of alpha-lipoic acid supplementation on CRP level (-0.72 mg/l, 95% CI; -1.4, -0.04; P = 0.03) with a significant heterogeneity between the selected studies. Sub-group analysis showed that alpha-lipoic acid supplementation could significantly reduce serum CRP level when the baseline CRP level was greater than 3 mg/l (-1.02 mg/l, 95% CI: -1.3, -0.73) and when trial duration was >8 weeks (-0.99 mg/l, 95% CI: -1.29, -0.70). Results of subgroup analysis also showed that alpha lipoic acid supplementation could decrease CRP level only in non-diabetic patients (-1.02 mg/l, 95% CI: -1.31, -0.74). CONCLUSIONS Results of the current meta-analysis study showed that alpha-lipoic acid supplementation could significantly decrease CRP level in patients with elevated levels of this inflammatory marker.
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Affiliation(s)
- S Saboori
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - E Falahi
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - E Eslampour
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - M Zeinali Khosroshahi
- Student Research Committee, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - E Yousefi Rad
- Nutritional Health Research Center, Lorestan University of Medical Sciences, Khorramabad, Iran.
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11
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Akbari M, Ostadmohammadi V, Tabrizi R, Mobini M, Lankarani KB, Moosazadeh M, Heydari ST, Chamani M, Kolahdooz F, Asemi Z. The effects of alpha-lipoic acid supplementation on inflammatory markers among patients with metabolic syndrome and related disorders: a systematic review and meta-analysis of randomized controlled trials. Nutr Metab (Lond) 2018; 15:39. [PMID: 29930690 PMCID: PMC5989440 DOI: 10.1186/s12986-018-0274-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 05/01/2018] [Indexed: 02/08/2023] Open
Abstract
Objective This systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to determine the effect of alpha-lipoic acid (ALA) supplementation on the inflammatory markers among patients with metabolic syndrome (MetS) and related disorders. Methods We searched the following databases until November 2017: PubMed, MEDLINE, EMBASE, Web of Science, and Cochrane Central Register of Controlled Trials. Three reviewers independently assessed study eligibility, extracted data, and evaluated risk of bias of included primary studies. Statistical heterogeneity was assessed using Cochran's Q test and I-square (I2) statistic. Data were pooled by using the random-effect model and standardized mean difference (SMD) was considered as the summary effect size. Results Eighteen trials out of 912 potential citations were found to be eligible for our meta-analysis. The findings indicated that ALA supplementation significantly decreased C-reactive protein (CRP) (SMD = - 1.52; 95% CI, - 2.25, - 0.80; P < 0.001), interlokin-6 (IL-6) (SMD = - 1.96; 95% CI, - 2.60, - 1.32; P < 0.001), and tumor necrosis factor alpha levels (TNF-α) (SMD = - 2.62; 95% CI, - 3.70, - 1.55; P < 0.001) in patients diagnosed with metabolic diseases. Conclusion In summary, the current meta-analysis demonstrated the promising impact of ALA administration on decreasing inflammatory markers such as CRP, IL-6 and TNF-α among patients with MetS and related disorders.
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Affiliation(s)
- Maryam Akbari
- 1Health Policy Research Center, Institute of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahidreza Ostadmohammadi
- 2Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R Iran
| | - Reza Tabrizi
- 1Health Policy Research Center, Institute of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Moein Mobini
- 3Kinesiology Department, University of Calgary, Calgary, AB Canada
| | - Kamran B Lankarani
- 4Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahmood Moosazadeh
- 5Health Science Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Taghi Heydari
- 4Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Chamani
- 6Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fariba Kolahdooz
- 7Indigenous and Global Health Research, Department of Medicine, University of Alberta, Edmonton, Canada
| | - Zatollah Asemi
- 2Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, I.R Iran
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12
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Huerta AE, Prieto-Hontoria PL, Sáinz N, Martínez JA, Moreno-Aliaga MJ. Supplementation with α-Lipoic Acid Alone or in Combination with Eicosapentaenoic Acid Modulates the Inflammatory Status of Healthy Overweight or Obese Women Consuming an Energy-Restricted Diet. J Nutr 2015; 146:889S-896S. [PMID: 26962183 DOI: 10.3945/jn.115.224105] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/21/2015] [Accepted: 12/28/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND The proinflammatory state induced by obesity plays an important role in obesity-related metabolic complications. OBJECTIVE Our objective was to evaluate whether dietary supplementation with α-lipoic acid (LA) and eicosapentaenoic acid (EPA), separately or in combination, could improve inflammatory and cardiovascular disease risk markers in healthy overweight or obese women consuming an energy-restricted diet. METHODS Within the context of the Effects of Lipoic Acid and Eicosapentaenoic Acid in Human Obesity (OBEPALIP) study, Caucasian women (n = 73) aged 20-50 y with a BMI (in kg/m2) between 27.5 and 40 consumed an energy-restricted diet for 10 wk after being randomly assigned to 1 of 4 parallel experimental groups: a control group or groups supplemented with 1.3 g EPA/d, 0.3 g LA/d, or both. Secondary outcomes were measured at baseline and at the end of the study. These included circulating inflammatory [C-reactive protein (CRP), adiponectin, interleukin 6 (IL-6), chemerin, haptoglobin, amyloid A, and leukocytes] and cardiovascular disease risk markers (platelet count and circulating apelin, asymmetric dimethylarginine, vascular endothelial growth factor, and plasminogen activator inhibitor 1). Gene expression of IL6, adhesion G protein-coupled receptor E1 (ADGRE1), interleukin 10 (IL10), chemokine (C-C motif) ligand 2, and adiponectin was measured in subcutaneous abdominal adipose tissue biopsies at endpoint. RESULTS Supplementation with LA caused a greater reduction in some circulating inflammatory risk markers, such as CRP (-0.13 ± 0.07 mg/dL compared with 0.06 ± 0.07 mg/dL, P < 0.05) and leukocyte count (-0.74 ± 0.18 × 103/mm3 compared with 0.06 ± 0.18 × 103/mm3, P < 0.01), than in the groups that were not supplemented with LA. In contrast, the fall in apelin concentrations that accompanied weight loss was less pronounced in groups that were supplemented with LA (-1.1 ± 4.9 pg/mL) than in those that were not (-21.3 ± 4.8 pg/mL, P < 0.01). In adipose tissue, compared with those who did not receive EPA, EPA-supplemented groups exhibited a downregulation of ADGRE1 (0.7 ± 0.1-fold compared with 1.0 ± 0.1-fold) (P < 0.05) and an upregulation of IL10 (1.8 ± 0.2-fold compared with 1.0 ± 0.2-fold) (P < 0.05) gene expression. CONCLUSIONS Dietary supplementation with LA improves some systemic inflammatory and cardiovascular disease-related risk markers in healthy overweight or obese women independently of weight loss, whereas EPA modulates inflammation-related genes in adipose tissue. This trial was registered at clinicaltrials.gov as NCT01138774.
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Affiliation(s)
- Ana E Huerta
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - Pedro L Prieto-Hontoria
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain
| | - Neira Sáinz
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain
| | - J Alfredo Martínez
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), National Institute of Health Carlos III, Madrid, Spain.,Navarra Institute for Health Research (IDISNA), Pamplona, Spain
| | - María J Moreno-Aliaga
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Spain.,Biomedical Research Centre Network in Physiopathology of Obesity and Nutrition (CIBERobn), National Institute of Health Carlos III, Madrid, Spain.,Navarra Institute for Health Research (IDISNA), Pamplona, Spain
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Verma H, Garg R. Comment on "Alpha-Lipoic Acid and Antioxidant Diet Help to Improve Endothelial Dysfunction in Adolescents with Type 1 Diabetes: A Pilot Trial". J Diabetes Res 2015; 2015:646095. [PMID: 26273673 PMCID: PMC4530266 DOI: 10.1155/2015/646095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 07/22/2015] [Indexed: 12/04/2022] Open
Affiliation(s)
- Hitesh Verma
- Overseas R&D Centre, Overseas HealthCare Pvt. Ltd., Phillaur, Punjab 144410, India
- Department of Pharmaceutics, ASBASJSM College of Pharmacy, Bela, Ropar 140111, India
- *Hitesh Verma:
| | - Rajeev Garg
- Department of Pharmaceutics, ASBASJSM College of Pharmacy, Bela, Ropar 140111, India
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14
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Pagano G, Aiello Talamanca A, Castello G, Cordero MD, d'Ischia M, Gadaleta MN, Pallardó FV, Petrović S, Tiano L, Zatterale A. Current experience in testing mitochondrial nutrients in disorders featuring oxidative stress and mitochondrial dysfunction: rational design of chemoprevention trials. Int J Mol Sci 2014; 15:20169-208. [PMID: 25380523 PMCID: PMC4264162 DOI: 10.3390/ijms151120169] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 10/29/2014] [Accepted: 10/30/2014] [Indexed: 02/07/2023] Open
Abstract
An extensive number of pathologies are associated with mitochondrial dysfunction (MDF) and oxidative stress (OS). Thus, mitochondrial cofactors termed "mitochondrial nutrients" (MN), such as α-lipoic acid (ALA), Coenzyme Q10 (CoQ10), and l-carnitine (CARN) (or its derivatives) have been tested in a number of clinical trials, and this review is focused on the use of MN-based clinical trials. The papers reporting on MN-based clinical trials were retrieved in MedLine up to July 2014, and evaluated for the following endpoints: (a) treated diseases; (b) dosages, number of enrolled patients and duration of treatment; (c) trial success for each MN or MN combinations as reported by authors. The reports satisfying the above endpoints included total numbers of trials and frequencies of randomized, controlled studies, i.e., 81 trials testing ALA, 107 reports testing CoQ10, and 74 reports testing CARN, while only 7 reports were retrieved testing double MN associations, while no report was found testing a triple MN combination. A total of 28 reports tested MN associations with "classical" antioxidants, such as antioxidant nutrients or drugs. Combinations of MN showed better outcomes than individual MN, suggesting forthcoming clinical studies. The criteria in study design and monitoring MN-based clinical trials are discussed.
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Affiliation(s)
- Giovanni Pagano
- Istituto Nazionale Tumori Fondazione G. Pascale-Cancer Research Center at Mercogliano (CROM)-IRCCS, Naples I-80131, Italy.
| | - Annarita Aiello Talamanca
- Istituto Nazionale Tumori Fondazione G. Pascale-Cancer Research Center at Mercogliano (CROM)-IRCCS, Naples I-80131, Italy.
| | - Giuseppe Castello
- Istituto Nazionale Tumori Fondazione G. Pascale-Cancer Research Center at Mercogliano (CROM)-IRCCS, Naples I-80131, Italy.
| | - Mario D Cordero
- Research Laboratory, Dental School, Universidad de Sevilla, Sevilla 41009, Spain.
| | - Marco d'Ischia
- Department of Chemical Sciences, University of Naples "Federico II", Naples I-80126, Italy.
| | - Maria Nicola Gadaleta
- National Research Council, Institute of Biomembranes and Bioenergetics, Bari I-70126, Italy.
| | - Federico V Pallardó
- CIBERER (Centro de Investigación Biomédica en Red de Enfermedades Raras), University of Valencia-INCLIVA, Valencia 46010, Spain.
| | - Sandra Petrović
- Vinca" Institute of Nuclear Sciences, University of Belgrade, Belgrade 11001, Serbia.
| | - Luca Tiano
- Biochemistry Unit, Department of Clinical and Dental Sciences, Polytechnical University of Marche, Ancona I-60131, Italy.
| | - Adriana Zatterale
- Genetics Unit, Azienda Sanitaria Locale (ASL) Napoli 1 Centro, Naples I-80136, Italy.
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