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Sharifi-Zahabi E, Rezvani N, Hajizadeh-Sharafabad F, Hosseini-Baharanchi FS, Shidfar F, Rahimi M. Theobromine supplementation in combination with a low-calorie diet improves cardiovascular risk factors in overweight and obese subjects with metabolic syndrome: a randomized controlled trial. Food Funct 2023; 14:8431-8441. [PMID: 37615657 DOI: 10.1039/d3fo00555k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Background & aims: The beneficial effects of theobromine (TB) on obesity and features of metabolic syndrome (MetS) have been reported in several studies. However, the findings are equivocal. The present study aimed to investigate the effects of 12 week pure TB supplementation (450 mg day-1) combined with a low-calorie diet on the anthropometric and metabolic syndrome indices in overweight and obese adults with MetS. Methods: In a randomized double-blind parallel controlled trial, 80 participants aged 40-55 years were randomly assigned to take 450 mg day-1 TB or placebo along with a low-calorie diet for 12 weeks. Dietary intake, anthropometric indices, blood pressure, lipid profile and glycemic indices were assessed at the start and end of the intervention. Results: Seventy-two participants completed the study. After 12 weeks, TB supplementation significantly decreased the waist circumference (WC) (-0.86 cm; P = 0.045), LDL-c/HDL-c (-0.26; P = 0.008), TG/HDL-c (-0.41; P = 0.001), TC/HDL-c (-0.38; P = 0.006) and increased HDL-c (1.72 mg dl-1; P = 0.036) compared to the placebo group. There were no significant differences regarding body weight, BMI, hip circumference (HC), hip-to-waist circumference ratio (WHR), systolic and diastolic blood pressure, fasting levels of total cholesterol (TC), triacylglycerol (TAG), low-density lipoprotein cholesterol (LDL-c), fasting blood glucose, insulin, homoeostatic model assessment for insulin resistance (HOMA-IR) and homeostasis model assessment of β-cell function (HOMA-β) between the two groups (p > 0.05). Conclusion: The results of the current study revealed that TB supplementation along with a low-calorie diet had favorable effects on WC, LDL-c/HDL-c, TG/HDL-c, TC/HDL-c, and serum level of HDL-c in overweight and obese subjects with MetS. Trial registration number: IRCT20091114002709N59. Registration date: 5 March 2022.
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Affiliation(s)
- Elham Sharifi-Zahabi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Nayebali Rezvani
- Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | | | - Fatemeh Sadat Hosseini-Baharanchi
- Minimally Invasive Surgery Research Center, & Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Shidfar
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
| | - Mehrali Rahimi
- School of Medicine, Diabetic Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Eren F, Koca Yozgat A, Firat Oğuz E, Neşelioğlu S, Firat R, Gürlek Gökçebay D, Yarali HN, Özbek NY, Erel Ö. A New Perspective for Potential Organ Damage Due to Iron-Mediated Oxidation in Thalassemia Major Patients. J Clin Med 2023; 12:jcm12062422. [PMID: 36983421 PMCID: PMC10052047 DOI: 10.3390/jcm12062422] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
BACKGROUND The aim of this study is to develop new perspectives to prevent or reduce potential organ damage due to iron-mediated oxidation in thalassemia major patients. METHODS Seventy patients were included in this study. Blood samples were taken from the patients before and after transfusion. Total thiol, native thiol, disulfide, disulfide/native thiol percentage ratio, ischemia modified albumin (IMA), total antioxidant status (TAS), total oxidant status (TOS), and ferroxidase levels were determined. Additionally, undepleted thiol level (UTL) was determined as a new parameter associated with organ damage. RESULTS After transfusion, the levels of native thiol, total thiol, disulfide, TAS, ferroxidase, and TOS were higher, while the IMA levels and disulfide/native thiol percent ratio were lower. Significant correlations were found between antioxidant and oxidant tests before and after transfusion. Additionally, a negative correlation was found between the TOS and UTL levels of the patients measured before the transfusion. CONCLUSION In the present study, transfusion therapy increased both oxidation and the antioxidant levels. In addition, the term UTL has been introduced as a parameter that enables the determination of the oxidation level that may cause potential organ damage in transfusion-dependent thalassemia patients.
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Affiliation(s)
- Funda Eren
- Department of Medical Biochemistry Laboratory, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Ayça Koca Yozgat
- Department of Pediatric Hematology and Oncology, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Esra Firat Oğuz
- Department of Medical Biochemistry Laboratory, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Salim Neşelioğlu
- Department of Medical Biochemistry, Yıldırım Beyazıt University, 06010 Ankara, Turkey
| | - Rıdvan Firat
- Department of Medical Biochemistry Laboratory, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Dilek Gürlek Gökçebay
- Department of Pediatric Hematology and Oncology, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Hüsniye Neşe Yarali
- Department of Pediatric Hematology and Oncology, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Namık Yaşar Özbek
- Department of Pediatric Hematology and Oncology, Ankara Bilkent City Hospital, 06800 Ankara, Turkey
| | - Özcan Erel
- Department of Medical Biochemistry, Yıldırım Beyazıt University, 06010 Ankara, Turkey
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Kumari S, Dhiman P, Singh D, Saneja A. R-α-Lipoic Acid Conjugated to d-α-Tocopherol Polyethylene Glycol 1000 Succinate: Synthesis, Characterization, and Effect on Antiseizure Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7674-7682. [PMID: 35713421 DOI: 10.1021/acs.jafc.2c01685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
α-Lipoic acid (LA), a dithiol micronutrient, acts as a vital cofactor in various cellular catabolic reactions and is also known as a universal antioxidant. The therapeutic efficacy of LA is compromised by a poor aqueous solubility as well as a short half-life. In the present study, LA was conjugated to d-α-tocopherol polyethylene glycol succinate (TPGS) using carbodiimideacid-alcohol coupling reaction. The synthesized conjugate (TPGS-LA) was characterized using 1H and 13C nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FT-IR), UV-vis spectroscopy, and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The TPGS-LA conjugate was demonstrated to be biocompatible and to have better anticonvulsion activity as compared to native LA in pentylenetetrazol (PTZ)-induced convulsions in zebrafish. Moreover, zebrafish larvae pretreated with TPGS-LA conjugate demonstrated a significant (p < 0.05) reduction of protein carbonylation levels and downregulation of c-fos expression during seizures as compared to native LA. Conclusively, the present findings demonstrate that the TPGS-LA conjugate can be a promising approach for the delivery of LA.
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Affiliation(s)
- Savita Kumari
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061 Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 Uttar Pradesh, India
| | - Poonam Dhiman
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061 Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 Uttar Pradesh, India
| | - Damanpreet Singh
- Pharmacology and Toxicology Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061 Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 Uttar Pradesh, India
| | - Ankit Saneja
- Formulation Laboratory, Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061 Himachal Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 Uttar Pradesh, India
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Effect of Alpha-Lipoic Acid on Rat Ventricles and Atria under LPS-Induced Oxidative Stress. Antioxidants (Basel) 2022; 11:antiox11040734. [PMID: 35453419 PMCID: PMC9024801 DOI: 10.3390/antiox11040734] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/02/2022] [Accepted: 04/06/2022] [Indexed: 02/01/2023] Open
Abstract
Alpha-lipoic acid (α-LA) is a disulfide compound and one of the most effective antioxidants. Many studies have indicated positive effects of α-LA in the prevention of pathologic conditions mediated by oxidative stress, such as cardiovascular diseases. However, the therapeutic potential of α-LA for the heart has not been explored with regards to the ventricles and atria. The aim of our study was to evaluate the effects of α-LA on oxidative stress parameters and inflammation in the ventricles and atria of the heart in rats under LPS-induced oxidative stress. Wistar rats were divided into 4 groups: I—control (received 2 doses of 0.2 mL of 0.9% NaCl i.v., 0.5 h apart); II—α-LA (received 0.2 mL of 0.9% NaCl and 0.5 h later received α-LA 60 mg/kg b.w. i.v.); III—lipopolysaccharide (LPS) (received 0.2 mL of 0.9% NaCl and 0.5 h later received LPS 30 mg/kg b.w. i.v.); and IV—LPS + LA (received LPS 30 mg/kg b.w. i.v. and 0.5 h later received α-LA 60 mg/kg b.w. i.v.). Five hours later, the rats were euthanized. The hearts were surgically removed and weighed to estimate heart edema. The ventricular and atrium tissue was isolated to measure levels of TNF-α, IL-6, superoxide dismutase (SOD), thiobarbituric acid reactive substances (TBARS), hydrogen peroxide (H2O2), total sulfhydryl groups (-SH), total glutathione (tGSH), reduced glutathione (GSH), glutathione disulfide (GSSG), and the GSH/GSSG ratio. LPS significantly increased TNF-α, IL-6, TBARS, and H2O2 levels and decreased SOD, -SH groups, tGSH, the GSH/GSSG ratio, and GSH levels in rat ventricles and atria while α-LA administered after the injection of LPS significantly decreased TNF-α, IL-6, TBARS, and H2O2 levels. α-LA also increased SOD and -SH group levels and ameliorated the glutathione redox status when compared to the LPS group. Our data suggest that α-LA administration 30 min after LPS infusion may effectively prevent inflammation and oxidative stress in the ventricles and atria.
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Sharifi-Zahabi E, Abdollahzad H, Mostafa Nachvak S, Moloudi J, Golpayegani MR, Asiaei S, Rezavand L, Iraji Z, Jamshidi K. Effects of alpha lipoic acid on iron overload, lipid profile and oxidative stress indices in β-thalassemia major patients: A cross-over randomised controlled clinical trial. Int J Clin Pract 2021; 75:e14062. [PMID: 33527721 DOI: 10.1111/ijcp.14062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 01/27/2021] [Indexed: 11/30/2022] Open
Abstract
AIMS β-Thalassemia major (β-TM) is associated with iron overload, abnormal lipid levels and oxidative stress. Alpha lipoic acid (ALA) showed anti-oxidant and iron chelating properties, but its effect in β-TM patients is unclear. We investigated the effects of ALA on iron levels, lipid profile and oxidative stress. METHODS In this cross-over randomised clinical trial, 26 β-TM patients were assigned to receive 600 mg/d ALA or placebo (corn starch), for 8 weeks with a 21-days washout period. Serum ferritin, total cholesterol, triglycerides, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), LDL-C/HDL-C, total antioxidant capacity, malondialdehyde (MDA) and MDA/LDL-C were assessed at baseline and the end of each intervention phase. RESULTS Twenty-two patients completed the study. Serum ferritin (P = .004), MDA (P = .025) and MDA/LDL-C ratio (P =.002) were decreased and HDL-C (P =.035) increased significantly during ALA consumption. In comparison with placebo, ALA decreased the serum ferritin significantly (P = .02). Also, the changes in serum ferritin between ALA and placebo (-123.1 ± 40.0 vs -34.3 ± 21.0, P =.03) was significant in women subgroup. ALA had no significant effects on the other biomarkers. CONCLUSION The results of this study indicated that supplementation with 600 mg/d ALA may decrease serum ferritin in β-TM. Further studies are needed to confirm the findings.
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Affiliation(s)
- Elham Sharifi-Zahabi
- School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hadi Abdollahzad
- School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Research Center for Environmental Determinants of Health, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Seyed Mostafa Nachvak
- School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Jalal Moloudi
- School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mohammad Reza Golpayegani
- Department of Pediatrics, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sahar Asiaei
- Department of Exercise Physiology, Faculty of Physical Education and Sport Sciences, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Laya Rezavand
- Imam Khomeini Comprehensive Health Services Center, Health Deputy, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zeynab Iraji
- Department of Statistics and Epidemiology, Faculty of Health, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khadijeh Jamshidi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
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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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