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Jazinaki MS, Rashidmayvan M, Pahlavani N. The effect of pomegranate juice supplementation on C-reactive protein levels: GRADE-assessed systematic review and dose-response updated meta-analysis of data from randomized controlled trials. Phytother Res 2024; 38:2818-2831. [PMID: 38553998 DOI: 10.1002/ptr.8188] [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: 09/17/2023] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 06/13/2024]
Abstract
Pomegranate juice (PJ) has a possible anti-inflammatory effect because of its polyphenol content and antioxidants. However, the anti-inflammatory effect of PJ in randomized controlled trials (RCTs) has not been consistent. A previous meta-analysis conducted in 2016 reported a nonsignificant lowering effect of PJ on C-reactive protein (CRP) levels. This systematic review and meta-analysis aim to update the pooled effect size of PJ supplementation on CRP levels in RCT studies. PubMed, Scopus, and Web of Science databases were comprehensively searched until July 2023. Eligible studies were found by screening, their relevant data was extracted, and a risk of bias assessment was performed. The pooled effect size was calculated using a random effect model as the weighted mean difference (WMD) with a 95% confidence interval. This systematic review included 11 studies with 13 effect sizes and 696 participants. Meta-analysis showed that PJ supplementation led to a significant decrease in CRP levels compared to control groups (WMD: -2.55 mg/L; 95%CI: -3.44 to -1.66; p < 0.001). Subgroup analysis demonstrated the significant reduction effect of PJ on CRP levels in studies conducted on the both sexes or only females as well as Iranian population, individuals with 40 years≤, type 2 diabetes, polycystic ovary syndrome, or trials that intervened with PJ dosage of <250 ml/day. Meta-regression and dose-response analysis reported a nonsignificant linear and nonlinear relationship between intervention characteristics (duration and dose of PJ) and CRP changes. The current meta-analysis revealed that PJ supplemantation has a beneficial effect in improving CRP levels. It is recommended to understand this effect better, and find the optimal dose and duration of PJ supplementation to reduce CRP levels in the blood, and repeat meta-analysis after related RCTs are available. For the final proof of these effects, more detailed human studies are needed.
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Affiliation(s)
| | - Mohammad Rashidmayvan
- Department of Nutrition, Food Sciences and Clinical Biochemistry, School of Medicine, Social Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
| | - Naseh Pahlavani
- Health Sciences Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
- Social Determinants of Health Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
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Bahari H, Omidian K, Goudarzi K, Rafiei H, Asbaghi O, Hosseini Kolbadi KS, Naderian M, Hosseini A. The effects of pomegranate consumption on blood pressure in adults: A systematic review and meta-analysis. Phytother Res 2024; 38:2234-2248. [PMID: 38410857 DOI: 10.1002/ptr.8170] [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: 07/11/2023] [Revised: 01/14/2024] [Accepted: 02/11/2024] [Indexed: 02/28/2024]
Abstract
Considering the main component of cardiovascular disease and due to the high prevalence of hypertension, controlling blood pressure is required in individuals with various health conditions. Randomized clinical trials (RCTs) which studied the effects of pomegranate consumption on blood pressure have shown inconsistent findings. As a result, we intended to assess the effects of pomegranate consumption on systolic (SBP) and diastolic (DBP) blood pressure in adults. Systematic literature searches up to January 2024 were carried out using electronic databases, including PubMed, Web of Science, and Scopus, to identify eligible RCTs assessing the effects of pomegranate on blood pressure as an outcome. All the individuals who took part in our research were adults who consumed pomegranate in different forms as part of the study intervention. Heterogeneity tests of the selected trials were performed using the I2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference (WMD) with a 95% confidence interval (CI). Of 2315 records, 22 eligible RCTs were included in the current study. Our meta-analysis of the pooled findings showed that pomegranate consumption significantly reduced SBP (WMD: -7.87 mmHg; 95% CI: -10.34 to -5.39; p < 0.001) and DBP (WMD: -3.23 mmHg; 95% CI: -5.37 to -1.09; p = 0.003). Individuals with baseline SBP > 130 mmHg had a significantly greater reduction in SBP compared to individuals with baseline SBP < 130 mmHg. Also, there was a high level of heterogeneity among studies (SBP: I2 = 90.0% and DBP: I2 = 91.8%). Overall, the results demonstrated that pomegranate consumption lowered SBP and DBP in adults. Although our results suggest that pomegranate juice may be effective in reducing blood pressure in the pooled data, further high-quality studies are needed to demonstrate the clinical efficacy of pomegranate consumption.
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Affiliation(s)
- Hossein Bahari
- Transplant Research Center, Clinical Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kosar Omidian
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Kian Goudarzi
- Faculty of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Hossein Rafiei
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Moslem Naderian
- Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ali Hosseini
- Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Sebastiá-Rico J, Cabeza-Melendre D, Anderson L, Martínez-Sanz JM. Nitric Oxide in the Field: Prevalence and Use of Nitrates by Dietitians and Nutritionists in Spanish Elite Soccer. Nutrients 2023; 15:5128. [PMID: 38140386 PMCID: PMC10745965 DOI: 10.3390/nu15245128] [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: 11/28/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/24/2023] Open
Abstract
Soccer players make frequent use of dietary supplements to improve performance. One of the most widely used strategies to optimize performance is to increase the bioavailability of nitric oxide through nitrates, as it could delay fatigue during physical exertion, among other benefits. This may be positive for performance in soccer, although there is almost no research in professional soccer. The aim of the study was to evaluate the use of nitrates and behaviours related to their consumption in Spanish elite soccer clubs. Dietitian-nutritionist representatives from 45 teams from the most important Spanish soccer leagues completed an online survey to determine if, when, how and why nitrates are prescribed to soccer players. Of the total sample, 55.6% indicated providing nitrates, always before matches, but only 36% in training. There was a wide variation and lack of consistency in the timing, dosage and form of administration of nitrates. The use of mouthwashes or the protocol of chronic nitrate intake was not taken into account in most cases. The present study indicates a lack of interpretation between scientific knowledge and its application in practice, highlighting the need for future research to better understand how to optimize the use of nitrates in professional soccer.
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Affiliation(s)
- Jaime Sebastiá-Rico
- Area of Nutrition, University Clinic of Nutrition, Physical Activity and Physiotherapy (CUNAFF), Lluís Alcanyís Foundation—University of Valencia, 46020 Valencia, Spain
- Food & Health Lab, Institute of Materials Science, University of Valencia, 46980 Paterna, Spain
| | - Daniel Cabeza-Melendre
- Area of Nutrition, University Clinic of Nutrition, Physical Activity and Physiotherapy (CUNAFF), Lluís Alcanyís Foundation—University of Valencia, 46020 Valencia, Spain
| | - Liam Anderson
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham B15 2TT, UK;
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Baghdadi G, Shidfar F, Dehnad A. The effect of pomegranate consumption on cardiovascular risk factors in hemodialysis patients: A systematic review of clinical trials. Phytother Res 2023; 37:4963-4975. [PMID: 37485775 DOI: 10.1002/ptr.7961] [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: 03/15/2022] [Revised: 04/12/2023] [Accepted: 06/30/2023] [Indexed: 07/25/2023]
Abstract
Patients undergoing maintenance dialysis have a significantly higher incidence of cardiovascular disease (CVD) compared with the general population. CVD is the most common cause of morbidity and mortality among hemodialysis patients, and has been attributed, among other causes, to increased oxidative stress, inflammation, hypertension and dyslipidemia. Pomegranate, a popular fruit worldwide, has demonstrated health benefits such as antioxidative, antidiabetic, antihypertensive, antihyperlipidemic and anti-inflammatory effects. In this systematic review of clinical trials, we aim to summarize the effect of different parts of pomegranate and the effects of its use on CVD risk factors in hemodialysis patients. PubMed/MEDLINE, EMBASE, Scopus, and Web of Science were searched to identify eligible clinical trials up to December 2021. Ultimately, seven clinical trials were included in this study. Different parts of pomegranate used in these trials were pomegranate juice, pomegranate extract and pomegranate peel extract. The duration of the studies varied from one dialysis session to 1 year. Our results showed that different parts of pomegranate may have anti-hypertensive, antioxidant, anti-inflammatory effects and improve lipid profile by decreasing TG (triglycerides) and increasing HDL-C (high-density lipoprotein cholesterol) in hemodialysis patients. However, due to limited number of studies, more clinical trials need to be performed.
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Affiliation(s)
- Ghazal Baghdadi
- Department of Nutrition, 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
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Afsaneh Dehnad
- Department of English Language, School of Health Management and Information Sciences, Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
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Tan R, Price KM, Wideen LE, Lincoln IG, Karl ST, Seals JP, Paniagua KK, Hagen DW, Tchaprazian I, Bailey SJ, Pennell A. Dietary nitrate ingested with and without pomegranate supplementation does not improve resistance exercise performance. Front Nutr 2023; 10:1217192. [PMID: 37485396 PMCID: PMC10358845 DOI: 10.3389/fnut.2023.1217192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/23/2023] [Indexed: 07/25/2023] Open
Abstract
This study tested the hypothesis that co-ingesting nitrate (NO3-)-rich beetroot juice (BR) and pomegranate powder (POM) would enhance neuromuscular performance during vertical countermovement jumps, explosive kneeling countermovement push-ups, and back squats compared to BR ingestion alone. Fifteen recreationally-active males were assigned in a double-blind, randomized, crossover design, to supplement in 3 conditions: (1) NO3--depleted beetroot juice (PL; 0.10 mmol NO3-) with two empty gelatin capsules; (2) NO3--rich beetroot juice (BR; 11.8 mmol NO3-) with two empty gelatin capsules, and (3) BR with 1,000 mg of POM powder in two capsules (BR + POM). Participants completed 5 countermovement jumps and 5 kneeling countermovement push-ups interspersed by 1 min of recovery. Subsequently, participants performed 2 sets of 2 × 70% one-repetition maximum back squats, interspersed by 2 min of recovery. Plasma [NO3-] and nitrite ([NO2-]) were elevated following BR and BR + POM compared with PL and POM (p < 0.001) with no differences between BR and BR + POM (p > 0.05) or PL and POM (p > 0.05). Peak power during countermovement jumps increased by 3% following BR compared to BR + POM (88.50 ± 11.46 vs. 85.80 ± 10.14 W/Kg0.67, p = 0.009) but not PL (88.50 ± 11.46 vs. 85.58 ± 10.05 W/Kg0.67, p = 0.07). Neuromuscular performance was not different between conditions during explosive kneeling push-ups and back squats (p > 0.05). These data provide insight into the efficacy of NO3- to modulate explosive resistance exercise performance and indicate that supplementing with BR alone or combined with POM has limited ergogenic potential on resistance exercise. Furthermore, caution is required when combining BR with POM, as this could compromise aspects of resistance exercise performance, at least when compared to BR ingested independently.
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Affiliation(s)
- Rachel Tan
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Katherine M. Price
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Lauren E. Wideen
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Isabella G. Lincoln
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Sean T. Karl
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Jacob P. Seals
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | | | - Dylan W. Hagen
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Isaac Tchaprazian
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
| | - Stephen J. Bailey
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, United Kingdom
| | - Adam Pennell
- Department of Sports Medicine, Pepperdine University, Malibu, CA, United States
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Ali MY, Jannat S, Chang MS. Discovery of Potent Angiotensin-Converting Enzyme Inhibitors in Pomegranate as a Treatment for Hypertension. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37384918 DOI: 10.1021/acs.jafc.3c02115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Pomegranate (Punica granatum L.) is associated with numerous health benefits due to its high levels of antioxidant polyphenolic substances. Since pomegranate extract has been shown to inhibit angiotensin-converting enzyme (ACE), the potential inhibitory effect of most of its main constituents against ACE is unknown. Therefore, we tested the activities of 24 major compounds, the majority of which significantly inhibited ACE. Notably, pedunculagin, punicalin, and gallagic acid were the most effective ACE inhibitors with IC50 values of 0.91, 1.12, and 1.77 μM, respectively. As demonstrated in molecular docking studies, compounds block ACE by forming multiple hydrogen bonds and hydrophobic interactions with catalytic residues and zinc ions in ACE's C- and N-domains, consequently inhibiting ACE's catalytic activity. Also, the most active pedunculagin stimulated nitric oxide (NO) production, activated the endothelial nitric oxide synthase enzyme (eNOS), and significantly increased eNOS protein expression levels up to 5.3-fold in EA.hy926 cells. Furthermore, pedunculagin increased in cellular calcium (Ca2+) concentration promoted eNOS enzyme activation and reduced the production of reactive oxygen species (ROS). In addition, the active compounds improved glucose uptake in insulin-resistant C2C12 skeletal muscle cells in a dose-dependent manner. The results of these computational, in vitro, and cellular experiments provide further evidence to the traditional medicine that involves using pomegranates to treat cardiovascular diseases like hypertension.
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Affiliation(s)
- Md Yousof Ali
- Department of Clinical Neurosciences, University of Calgary, Calgary, AB T2N 1N4, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Susoma Jannat
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Mun Seog Chang
- Department of Prescriptionology, College of Korean Medicine, Kyung Hee University, 26 Kyunghee dae-ro, Seoul 02447, Korea
- Qgenetics, Seoul Bio Cooperation Center 504, 23 Kyunghee dae-ro, Dongdaemun-gu, Seoul 02447, Korea
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Is consumption of pomegranate supplementation effective on oxidative stress biomarkers including MDA, ox-LDL, POX 1, GPX, TAC, and TBRAS? A systematic review and meta-analysis of randomized controlled trials. Curr Probl Cardiol 2022:101198. [DOI: 10.1016/j.cpcardiol.2022.101198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/02/2022] [Indexed: 11/21/2022]
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Meuffels FM, Isenmann E, Strube M, Lesch A, Oberste M, Brinkmann C. Exercise Interventions Combined With Dietary Supplements in Type 2 Diabetes Mellitus Patients—A Systematic Review of Relevant Health Outcomes. Front Nutr 2022; 9:817724. [PMID: 35356737 PMCID: PMC8959696 DOI: 10.3389/fnut.2022.817724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/25/2022] [Indexed: 01/08/2023] Open
Abstract
IntroductionPhysical training can improve several health variables in patients with type 2 diabetes mellitus (T2DM). A growing body of studies also finds a positive influence of dietary supplement (DS) intake. The aim of this review is to shed light on the possible effects of training interventions combined with DS intake in T2DM patients.MethodsA systematic search was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines in the PubMed and BISp Surf databases. Inclusion criteria were defined using the Patient-Intervention-Comparison-Outcome (PICO) scheme. The Physiotherapy Evidence Database (PEDro) scale was used for quality assessment and risk of bias analysis.ResultsTen controlled interventional studies with a total number of 643 subjects met the inclusion criteria. These studies investigated the effects of (a) vitamin D (VD), (b) VD + whey protein, (c) polyphenol containing antioxidant capsules, (d) creatine, (e) L-arginine, (f) leucine-rich amino acids, and (g) broccoli sprouts powder. Eight studies investigated effects on one or more of the following health outcomes: body mass index, fat mass, insulin resistance, glycemic control, lipid profile, oxidative stress/antioxidative capacity and/or inflammatory markers/molecules. Five of the studies show clear superior effects of physical training combined with DS intake (supplements a, b, c, e) on some of these variables compared with training only. However, one study indicates that VD intake might attenuate the training effects on triglyceride levels. Another study found that training + VD + whey protein intake increased tumor necrosis factor-α levels in T2DM patients. The effects of training combined with DS intake on renal function (supplement d) or incretin metabolism (supplement a) were investigated in two further studies. These studies do not show any additional effects of DS intake. The quality of the majority of the studies was high.ConclusionDS intake can potentially increase the benefits of physical training for specific health outcomes in T2DM patients. However, negative effects can also be observed. Possible cellular and molecular mechanisms behind potential synergistic or divergent effects of exercise training and DS use in T2DM should be explored in detail in future studies for the development of safe recommendations.
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Affiliation(s)
- Frederike Maria Meuffels
- Department of Preventive and Rehabilitative Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- IST University of Applied Sciences, Düsseldorf, Germany
| | - Eduard Isenmann
- IST University of Applied Sciences, Düsseldorf, Germany
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Malte Strube
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Alessio Lesch
- Department of Molecular and Cellular Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
| | - Max Oberste
- Institute of Medical Statistics and Computational Biology (IMSB), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Christian Brinkmann
- Department of Preventive and Rehabilitative Sport Medicine, Institute of Cardiovascular Research and Sport Medicine, German Sport University Cologne, Cologne, Germany
- IST University of Applied Sciences, Düsseldorf, Germany
- *Correspondence: Christian Brinkmann
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Liu J, Xu D, Chen S, Yuan F, Mao L, Gao Y. Superfruits in China: Bioactive phytochemicals and their potential health benefits - A Review. Food Sci Nutr 2021; 9:6892-6902. [PMID: 34925817 PMCID: PMC8645738 DOI: 10.1002/fsn3.2614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 07/29/2021] [Accepted: 09/23/2021] [Indexed: 01/10/2023] Open
Abstract
The term "superfruit" usually refers to certain fruits, which are rich in antioxidant components, therefore, are beneficial to human health. In China, there has been the concept of health preservation and dietary therapy through food intake in a long history. However, some other superfruits growing mainly in China have not attracted extensive attention, such as Cili, Goji berry, and sea buckthorn. Many studies suggested all of these superfruits showed strong antioxidant effects and anti-inflammatory activity in common. However, there are various other advantages and functions in different fruits. This article reviewed the research findings from the existing literature published about major antioxidant bioactive compounds and the potential health benefits of these fruits. The phytochemicals from superfruits are bioaccessible and bioavailable in humans with promising health benefits. More studies are needed to validate the health benefits of these superfruits. It would provide essential information for further research and functional food development.
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Affiliation(s)
- Jinfang Liu
- Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Functional Food from Plant ResourcesKey Laboratory of Healthy BeveragesChina National Light IndustryCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
- Beijing Engineering and Technology Research Center of Food AdditivesBeijing Technology & Business UniversityBeijingChina
| | - Duoxia Xu
- Beijing Engineering and Technology Research Center of Food AdditivesBeijing Technology & Business UniversityBeijingChina
| | - Shuai Chen
- Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Functional Food from Plant ResourcesKey Laboratory of Healthy BeveragesChina National Light IndustryCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Fang Yuan
- Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Functional Food from Plant ResourcesKey Laboratory of Healthy BeveragesChina National Light IndustryCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Like Mao
- Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Functional Food from Plant ResourcesKey Laboratory of Healthy BeveragesChina National Light IndustryCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
| | - Yanxiang Gao
- Beijing Laboratory for Food Quality and Safety, Beijing Key Laboratory of Functional Food from Plant ResourcesKey Laboratory of Healthy BeveragesChina National Light IndustryCollege of Food Science & Nutritional EngineeringChina Agricultural UniversityBeijingChina
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Das M, Devi KP, Belwal T, Devkota HP, Tewari D, Sahebnasagh A, Nabavi SF, Khayat Kashani HR, Rasekhian M, Xu S, Amirizadeh M, Amini K, Banach M, Xiao J, Aghaabdollahian S, Nabavi SM. Harnessing polyphenol power by targeting eNOS for vascular diseases. Crit Rev Food Sci Nutr 2021; 63:2093-2118. [PMID: 34553653 DOI: 10.1080/10408398.2021.1971153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Vascular diseases arise due to vascular endothelium dysfunction in response to several pro-inflammatory stimuli and invading pathogens. Thickening of the vessel wall, formation of atherosclerotic plaques consisting of proliferating smooth muscle cells, macrophages and lymphocytes are the major consequences of impaired endothelium resulting in atherosclerosis, hypercholesterolemia, hypertension, type 2 diabetes mellitus, chronic renal failure and many others. Decreased nitric oxide (NO) bioavailability was found to be associated with anomalous endothelial function because of either its reduced production level by endothelial NO synthase (eNOS) which synthesize this potent endogenous vasodilator from L-arginine or its enhanced breakdown due to severe oxidative stress and eNOS uncoupling. Polyphenols are a group of bioactive compounds having more than 7000 chemical entities present in different cereals, fruits and vegetables. These natural compounds possess many OH groups which are largely responsible for their strong antioxidative, anti-inflammatory antithrombotic and anti-hypersensitive properties. Several flavonoid-derived polyphenols like flavones, isoflavones, flavanones, flavonols and anthocyanidins and non-flavonoid polyphenols like tannins, curcumins and resveratrol have attracted scientific interest for their beneficial effects in preventing endothelial dysfunction. This article will focus on in vitro as well as in vivo and clinical studies evidences of the polyphenols with eNOS modulating activity against vascular disease condition while their molecular mechanism will also be discussed.
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Affiliation(s)
- Mamali Das
- Department of Biotechnology, Alagappa University [Science Campus], Karaikudi, Tamil Nadu, India
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University [Science Campus], Karaikudi, Tamil Nadu, India
| | - Tarun Belwal
- College of Biosystems Engineering and Food Science, Zhejiang University, China
| | | | - Devesh Tewari
- Department of Pharmacognosy, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Adeleh Sahebnasagh
- Clinical Research Center, Department of Internal Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Seyed Fazel Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Khayat Kashani
- Department of Neurosurgery, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahsa Rasekhian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Suowen Xu
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Mehran Amirizadeh
- Department of Pharmacotherapy, Faculty of pharmacy, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Kiumarth Amini
- Student Research Committee, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Maciej Banach
- Department of Preventive Cardiology and Lipidology, Medical University of Lodz, Poland
| | - Jianbo Xiao
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China.,Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Safieh Aghaabdollahian
- Department of Nanobiotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Singh M, Agarwal S, Tiwari RK, Chanda S, Singh K, Agarwal P, Kashyap A, Pancham P, Mall S, R. R, Sharma S. Neuroprotective Ability of Apocynin Loaded Nanoparticles (APO-NPs) as NADPH Oxidase (NOX)-Mediated ROS Modulator for Hydrogen Peroxide-Induced Oxidative Neuronal Injuries. Molecules 2021; 26:5011. [PMID: 34443598 PMCID: PMC8400077 DOI: 10.3390/molecules26165011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/10/2021] [Accepted: 07/13/2021] [Indexed: 12/12/2022] Open
Abstract
Apocynin (APO) is a known multi-enzymatic complexed compound, employed as a viable NADPH oxidase (NOX) inhibitor, extensively used in both traditional and modern-day therapeutic strategies to combat neuronal disorders. However, its therapeutic efficacy is limited by lower solubility and lesser bioavailability; thus, a suitable nanocarrier system to overcome such limitations is needed. The present study is designed to fabricate APO-loaded polymeric nanoparticles (APO-NPs) to enhance its therapeutic efficacy and sustainability in the biological system. The optimized APO NPs in the study exhibited 103.6 ± 6.8 nm and -13.7 ± 0.43 mV of particle size and zeta potential, respectively, along with further confirmation by TEM. In addition, the antioxidant (AO) abilities quantified by DPPH and nitric oxide scavenging assays exhibited comparatively higher AO potential of APO-NPs than APO alone. An in-vitro release profile displayed a linear diffusion pattern of zero order kinetics for APO from the NPs, followed by its cytotoxicity evaluation on the PC12 cell line, which revealed minimal toxicity with higher cell viability, even after treatment with a stress inducer (H2O2). The stability of APO-NPs after six months showed minimal AO decline in comparison to APO only, indicating that the designed nano-formulation enhanced therapeutic efficacy for modulating NOX-mediated ROS generation.
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Affiliation(s)
- Manisha Singh
- Centre for Emerging Diseases (CFED), Department of Biotechnology, Jaypee Institute of Information Technology, Sector-62, Noida 201309, Uttar Pradesh, India; (S.A.); (P.P.); (R.R.)
| | - Shriya Agarwal
- Centre for Emerging Diseases (CFED), Department of Biotechnology, Jaypee Institute of Information Technology, Sector-62, Noida 201309, Uttar Pradesh, India; (S.A.); (P.P.); (R.R.)
| | - Raj Kumar Tiwari
- Pharmacognosy and Phytochemistry, School of Health Sciences, Pharmaceutical Sciences, UPES, Dehradun 248007, Uttarakhand, India;
| | - Silpi Chanda
- Pharmacognosy and Phytochemistry, IEC School of Pharmacy, IEC University, Solan 174103, Himachal Pradesh, India;
| | - Kuldeep Singh
- Department of Chemistry, Maharishi Markandeshwar (Deemed to Be University), Mullana 133207, Haryana, India;
| | - Prakhar Agarwal
- Department of Biosciences and Bioengineering, Indian Institute of Technology, Bombay 400076, Maharashtra, India;
| | - Aishwarya Kashyap
- Department of Biotechnology, Vellore Institute of Technology, School of Bio Sciences & Technology (SBST), Vellore 632014, Tamil Nadu, India;
| | - Pranav Pancham
- Centre for Emerging Diseases (CFED), Department of Biotechnology, Jaypee Institute of Information Technology, Sector-62, Noida 201309, Uttar Pradesh, India; (S.A.); (P.P.); (R.R.)
| | - Shweta Mall
- Department of Animal Genetics and Breeding, Southern Regional Station of Indian Council of Agriculture Research—Research Institute, Bangalore 560030, Karnataka, India;
| | - Rachana R.
- Centre for Emerging Diseases (CFED), Department of Biotechnology, Jaypee Institute of Information Technology, Sector-62, Noida 201309, Uttar Pradesh, India; (S.A.); (P.P.); (R.R.)
| | - Shalini Sharma
- Sunder Deep Pharmacy College, NH-9, Delhi-Meerut Expressway, Ghaziabad 201015, Uttar Pradesh, India;
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12
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Hamdan DI, El-Shiekh RA, El-Sayed MA, Khalil HMA, Mousa MR, Al-Gendy AA, El-Shazly AM. Phytochemical characterization and anti-inflammatory potential of Egyptian Murcott mandarin cultivar waste (stem, leaves and peel). Food Funct 2021; 11:8214-8236. [PMID: 32966492 DOI: 10.1039/d0fo01796e] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The stem (S), leaf (L) and fruit peel (P) of Murcott mandarins were separately extracted using 80% ethanol and then fractionated into dichloromethane (DCM) and ethyl acetate (ET). Their metabolic profiles were studied via HPLC-PDA-ESI-MS/MS and afforded a tentative characterization of 98 compounds, including free organic acids, phenolic acid derivatives, flavonoid aglycones, flavonoid glycosides, flavonoids containing 3-hydroxyl-3-methylglutaroyl (HMG) units, coumarin derivatives and limonoids. Column chromatography resulted in isolation of six metabolites for the first time that were identified as nobiletin (C1), isosinensetin (C2), limonin (C3), 4'-demethylnobiletin (C4), stigmasterol-O-glucoside (C5) and hesperidin (C6). In vitro studies of the anti-inflammatory activity of DCM-L against cyclooxygenases (COXs) and 5-lipoxygenase (5-LOX) enzymes revealed that DCM-L showed higher activity than the other tested fractions. The in vivo gastroprotective effects of that fraction were evaluated using alcohol-induced gastric ulcers in rats. The obtained findings validated the gastroprotective and anti-ulcerogenic activities of DCM-L through its anxiolytic, anti-inflammatory, antioxidant and anti-apoptotic effects. Therefore, we recommend the use of Murcott mandarin leaves as a part of a protection strategy for gastric ulcer.
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Affiliation(s)
- Dalia I Hamdan
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Shibin Elkom, 32511, Egypt.
| | - Riham A El-Shiekh
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Kasr el Aini st., Cairo, 11562, Egypt
| | - May A El-Sayed
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Heba M A Khalil
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
| | - Mohamed R Mousa
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza Square, Giza, 12211, Egypt
| | - Amal A Al-Gendy
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
| | - Assem M El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, 44519, Egypt
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13
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Anwaier G, Lian G, Ma GZ, Shen WL, Lee CI, Lee PL, Chang ZY, Wang YX, Tian XY, Gao XL, Chiu JJ, Qi R. Punicalagin Attenuates Disturbed Flow-Induced Vascular Dysfunction by Inhibiting Force-Specific Activation of Smad1/5. Front Cell Dev Biol 2021; 9:697539. [PMID: 34262908 PMCID: PMC8273543 DOI: 10.3389/fcell.2021.697539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/07/2021] [Indexed: 11/17/2022] Open
Abstract
Background Pathophysiological vascular remodeling in response to disturbed flow with low and oscillatory shear stress (OSS) plays important roles in atherosclerosis progression. Pomegranate extraction (PE) was reported having anti-atherogenic effects. However, whether it can exert a beneficial effect against disturbed flow-induced pathophysiological vascular remodeling to inhibit atherosclerosis remains unclear. The present study aims at investigating the anti-atherogenic effects of pomegranate peel polyphenols (PPP) extraction and its purified compound punicalagin (PU), as well as their protective effects on disturbed flow-induced vascular dysfunction and their underlying molecular mechanisms. Methods The anti-atherogenic effects of PPP/PU were examined on low-density lipoprotein receptor knockout mice fed with a high fat diet. The vaso-protective effects of PPP/PU were examined in rat aortas using myograph assay. A combination of in vivo experiments on rats and in vitro flow system with human endothelial cells (ECs) was used to investigate the pharmacological actions of PPP/PU on EC dysfunction induced by disturbed flow. In addition, the effects of PPP/PU on vascular smooth muscle cell (VSMC) dysfunction were also examined. Results PU is the effective component in PPP against atherosclerosis. PPP/PU evoked endothelium-dependent relaxation in rat aortas. PPP/PU inhibited the activation of Smad1/5 in the EC layers at post-stenotic regions of rat aortas exposed to disturbed flow with OSS. PPP/PU suppressed OSS-induced expression of cell cycle regulatory and pro-inflammatory genes in ECs. Moreover, PPP/PU inhibited inflammation-induced VSMC dysfunction. Conclusion PPP/PU protect against OSS-induced vascular remodeling through inhibiting force-specific activation of Smad1/5 in ECs and this mechanism contributes to their anti-atherogenic effects.
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Affiliation(s)
- Gulinigaer Anwaier
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, China
| | - Guan Lian
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, China
| | - Gui-Zhi Ma
- College of Pharmacy, Xinjiang Medical University, Xinjiang, China.,Xinjiang Key Laboratory of Active Components and Drug Release Technology of Natural Drugs, Xinjiang, China
| | - Wan-Li Shen
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, China
| | - Chih-I Lee
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Pei-Ling Lee
- Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Zhan-Ying Chang
- College of Pharmacy, Xinjiang Medical University, Xinjiang, China.,Xinjiang Key Laboratory of Active Components and Drug Release Technology of Natural Drugs, Xinjiang, China
| | - Yun-Xia Wang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, China
| | - Xiao-Yu Tian
- School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Li Gao
- College of Pharmacy, Xinjiang Medical University, Xinjiang, China.,Xinjiang Key Laboratory of Active Components and Drug Release Technology of Natural Drugs, Xinjiang, China
| | - Jeng-Jiann Chiu
- School of Medical Laboratory Science and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan.,Taipei Heart Institute, Taipei Medical University, Taipei, Taiwan.,Institute of Cellular and System Medicine, National Health Research Institutes, Miaoli, Taiwan.,Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan.,Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
| | - Rong Qi
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Peking University, Beijing, China.,State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,National Health Commission (NHC) Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, Peking University, Beijing, China
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14
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Abstract
: Sexual health is an integral part of overall health, and an active and healthy sexual life is an essential aspect of a good life quality. Cardiovascular disease and sexual health share common risk factors (arterial hypertension, diabetes mellitus, dyslipidemia, obesity, and smoking) and common mediating mechanisms (endothelial dysfunction, subclinical inflammation, and atherosclerosis). This generated a shift of thinking about the pathophysiology and subsequently the management of sexual dysfunction. The introduction of phosphodiesterase type 5 inhibitors revolutionized the management of sexual dysfunction in men. This article will focus on erectile dysfunction and its association with arterial hypertension. This update of the position paper was created by the Working Group on Sexual Dysfunction and Arterial Hypertension of the European Society of Hypertension. This working group has been very active during the last years in promoting the familiarization of hypertension specialists and related physicians with erectile dysfunction, through numerous lectures in national and international meetings, a position paper, newsletters, guidelines, and a book specifically addressing erectile dysfunction in hypertensive patients. It was noted that erectile dysfunction precedes the development of coronary artery disease. The artery size hypothesis has been proposed as a potential explanation for this observation. This hypothesis seeks to explain the differing manifestation of the same vascular condition, based on the size of the vessels. Clinical presentations of the atherosclerotic and/or endothelium disease in the penile arteries might precede the corresponding manifestations from larger arteries. Treated hypertensive patients are more likely to have sexual dysfunction compared with untreated ones, suggesting a detrimental role of antihypertensive treatment on erectile function. The occurrence of erectile dysfunction seems to be related to undesirable effects of antihypertensive drugs on the penile tissue. Available information points toward divergent effects of antihypertensive drugs on erectile function, with diuretics and beta-blockers possessing the worst profile and angiotensin receptor blockers and nebivolol the best profile.
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15
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Ge S, Duo L, Wang J, Yang J, Li Z, Tu Y. A unique understanding of traditional medicine of pomegranate, Punica granatum L. and its current research status. JOURNAL OF ETHNOPHARMACOLOGY 2021; 271:113877. [PMID: 33515685 DOI: 10.1016/j.jep.2021.113877] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pomegranate, Punica granatum L., has been used in traditional medicine in China and several regions of the world including Ayurveda, Islamic, and Persian for the treatment of atherosclerosis, diabetes, hypertension, hyperlipidemia, and several types of cancer, as well as for peptic ulcer and oral diseases for hundreds of years. Presently, pomegranate is treated as both a "medicine food homology" herbal medicine and a healthy food supplemental product. AIM OF THE STUDY The aim of this work is to develop an overview of pomegranate in the context of the status of its traditional medicine theories, the spread along the Silk Road, ethnopharmacological uses, chemical compositions, pharmacological activities, toxicology, and the involved pathways. MATERIALS AND METHODS Information on P. granatum L. was acquired from published materials, including monographs on medicinal plants, ancient and modern recorded classical texts; and pharmacopoeias and electronic databases (PubMed, Science Direct, Web of Science, Google Scholar, CNKI, and Wanfang Data). RESULTS Pomegranate has been used in many traditional medical systems throughout history. It is widely cultivated in Central Asia and spread throughout China along the Silk Road. Many phytochemicals, such as tannins, organic acids, flavonoids, alkaloids, and volatile oils have been identified from different parts of pomegranate, these compounds have a wide range of activities, including antioxidant, antimicrobial, and anti-oncogenic properties, as well as conferring resistance to cerebrovascular disease. Furthermore, A summary of the four promising pharmacological pathways is provided. CONCLUSIONS The traditional uses, chemical compositions, pharmacological activities, and signaling pathways of pomegranate are summarized comprehensively in the review. It can be treated as a guidance for the future clinical and basic research. The information provided in this review will be very useful for further studies to develop novel therapeutic directions for application of pomegranate.
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Affiliation(s)
- Shasha Ge
- Medical Research Center, China Academy of Chinese Medical Science, Beijing, China; Development Research Center of TCM, China Academy of Chinese Medical Science, Beijing, China
| | - Lan Duo
- School of Pharmacy, Inner Mongolia Medical University, Hohhot, China
| | - Junqi Wang
- School of Pharmacy, Minzu University of China, Beijing, China
| | - Jingfan Yang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China
| | - Zhiyong Li
- School of Pharmacy, Minzu University of China, Beijing, China.
| | - Ya Tu
- Medical Research Center, China Academy of Chinese Medical Science, Beijing, China; Development Research Center of TCM, China Academy of Chinese Medical Science, Beijing, China.
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16
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Asgary S, Karimi R, Joshi T, Kilpatrick KL, Moradi S, Samimi Z, Mohammadi E, Farzaei MH, Bishayee A. Effect of pomegranate juice on vascular adhesion factors: A systematic review and meta-analysis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 80:153359. [PMID: 33188983 DOI: 10.1016/j.phymed.2020.153359] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 09/20/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Cardiovascular diseases, obesity, and insulin resistance demonstrate elements of functional impairment of the endothelium. Treatment of endothelial dysfunction with natural products, such as pomegranate, can open new ways in the treatment of cardiovascular diseases. PURPOSE The present meta-analysis provides information in highlighting the role of pomegranate in endothelial dysfunction. METHODS Various databases, such as PubMed, Scopus, Web of Science, Cochrane, and Google Scholar, were searched up to July 2020 using relevant keywords. We have selected the studies that investigated the effects of pomegranate on vascular adhesion factors, including intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), E-selectin, and interleukin-6 (IL-6). MD with 95% CrI with 100,000 iterations by using Markov chain Monte Carlo code were used. RESULTS Pooled effect size of articles in human studies indicated that pomegranate juice was not significantly effective on ICAM-1 [MD: -0.42; CrI: (-1.01, 0.17)], VCAM-1 [MD: -0.20; CrI: (-1.95, 1.40)], and E-selectin [MD: -0.21; CrI: (-1.62, 1.21)] compared to the control group. But it can significantly reduce IL-6 [MD: -1.07; CrI: (-1.90, -0.19)]. CONCLUSION Generally, present study showed that pomegranate juice has no significant effect on vascular adhesion factors, ICAM-1, VCAM-1, and E-selectin, but can reduce IL-6 significantly. Future prospective randomized clinical trials with longer intervention duration are warranted to obtain a precise conclusion.
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Affiliation(s)
- Sedigheh Asgary
- Isfahan Cardiovascular Research Center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Raheleh Karimi
- Cardiac Rehabilitation Research center, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan 8174673461, Iran
| | - Tanuj Joshi
- Department of Pharmaceutical Sciences, Bhimtal, Kumaun University, Nainital - 263 002, Uttarakhand, India
| | | | - Sajjad Moradi
- Halal Research Center of Islamic republic of Iran, Food and Drug Administration, Tehran 1415845371, Iran; Nutritional Sciences Department, School of Nutritional Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran
| | - Zeinab Samimi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran
| | - Elham Mohammadi
- R.R.College of Pharmacy, Bangaluru 090 560, Karnataka, India
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran.
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, United States.
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Kori AH, Mahesar SA, Sherazi STH, Laghari ZH, Panhwar T. A review on techniques employed for encapsulation of the bioactive components of
Punicagranatum
L. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Abdul Hameed Kori
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Sarfaraz Ahmed Mahesar
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | | | - Zahid Hussain Laghari
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Tarique Panhwar
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
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18
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Ammar A, Trabelsi K, Boukhris O, Bouaziz B, Müller P, Glenn JM, Chamari K, Müller N, Chtourou H, Driss T, Hökelmann A. Moderators of the Impact of (Poly)Phenols Interventions on Psychomotor Functions and BDNF: Insights from Subgroup Analysis and Meta-Regression. Nutrients 2020; 12:nu12092872. [PMID: 32961777 PMCID: PMC7551086 DOI: 10.3390/nu12092872] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Recent anti-aging interventions have shown contradictory impacts of (poly)phenols regarding the prevention of cognitive decline and maintenance of brain function. These discrepancies have been linked to between-study differences in supplementation protocols. This subgroup analysis and meta-regression aimed to (i) examine differential effects of moderator variables related to participant characteristics and supplementation protocols and (ii) identify practical recommendations to design effective (poly)phenol supplementation protocols for future anti-aging interventions. METHODS Multiple electronic databases (Web of Science; PubMed) searched for relevant intervention published from inception to July 2019. Using the PICOS criteria, a total of 4303 records were screened. Only high-quality studies (n = 15) were included in the final analyses. Random-effects meta-analysis was used, and we calculated standard differences in means (SDM), effect size (ES), and 95% confidence intervals (CI) for two sufficiently comparable items (i.e., psychomotor function and brain-derived neurotrophic factor (BDNF)). When significant heterogeneity was computed (I2 > 50%), a subgroup and meta-regression analysis were performed to examine the moderation effects of participant characteristics and supplementation protocols. RESULTS The reviewed studies support the beneficial effect of (poly)phenols-rich supplementation on psychomotor functions (ES = -0.677, p = 0.001) and brain plasticity (ES = 1.168, p = 0.028). Subgroup analysis revealed higher beneficial impacts of (poly)phenols (i) in younger populations compared to older (SDM = -0.89 vs. -0.47 for psychomotor performance, and 2.41 vs. 0.07 for BDNF, respectively), (ii) following an acute compared to chronic supplementation (SDM = -1.02 vs. -0.43 for psychomotor performance), and (iii) using a phenolic compound with medium compared to low bioavailability rates (SDM = -0.76 vs. -0.68 for psychomotor performance and 3.57 vs. 0.07 for DBNF, respectively). Meta-regressions revealed greater improvement in BDNF levels with lower percentages of female participants (Q = 40.15, df = 6, p < 0.001) and a skewed scatter plot toward a greater impact using higher (poly)phenols doses. CONCLUSION This review suggests that age group, gender, the used phenolic compounds, their human bioavailability rate, and the supplementation dose as the primary moderator variables relating to the beneficial effects of (poly)phenol consumption on cognitive and brain function in humans. Therefore, it seems more advantageous to start anti-aging (poly)phenol interventions in adults earlier in life using medium (≈500 mg) to high doses (≈1000 mg) of phenolic compounds, with at least medium bioavailability rate (≥9%).
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Affiliation(s)
- Achraf Ammar
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
- Correspondence: ; Tel.: +49-391-67-57395
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Sfax 3000, Tunisia
| | - Omar Boukhris
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Bassem Bouaziz
- Higher Institute of Computer Science and Multimedia of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Patrick Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39104 Magdeburg, Germany
| | - Jordan M. Glenn
- Department of Health, Exercise Science Research Center, Human Performance and Recreation, University of Arkansas, Fayetteville, AR 72701, USA;
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA
| | - Karim Chamari
- ASPETAR, Qatar Orthopaedic and Sports Medicine Hospital, Doha PoBox 29222, Qatar;
- Laboratory “Sport Performance Optimization”, (CNMSS), ISSEP Ksar-Said, Manouba University, Manouba 1004, Tunisia
| | - Notger Müller
- German Center for Neurodegenerative Diseases (DZNE), 39104 Magdeburg, Germany; (P.M.); (N.M.)
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.); (H.C.)
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, Tunis 1003, Tunisia
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University, 92000 Nanterre, France;
| | - Anita Hökelmann
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
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19
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Effects of Polyphenol-Rich Interventions on Cognition and Brain Health in Healthy Young and Middle-Aged Adults: Systematic Review and Meta-Analysis. J Clin Med 2020; 9:jcm9051598. [PMID: 32466148 PMCID: PMC7290428 DOI: 10.3390/jcm9051598] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/13/2020] [Accepted: 05/22/2020] [Indexed: 02/08/2023] Open
Abstract
Context: Affecting older and even some younger adults, neurodegenerative disease represents a global public health concern and has been identified as a research priority. To date, most anti-aging interventions have examined older adults, but little is known about the effects of polyphenol interventions on brain-related aging processes in healthy young and middle-aged adults. Objective: This systematic review and meta-analysis aimed to evaluate the acute and chronic effects of (poly)phenol-rich diet supplementation on cognitive function and brain health in young and middle-aged adults. In July 2019, two electronic databases (PubMed and Web of Science) were used to search for relevant trials examining the effect of acute or chronic (poly)phenol-rich supplementation on cognitive function and neuroprotective measures in young and middle-aged adults (<60 years old). A total of 4303 records were screened by two researchers using the PICOS criteria. Fifteen high quality (mean PEDro score = 8.8 ± 0.58) trials with 401 total participants were included in the final analyses. Information on treatment, study design, characteristics of participants, outcomes and used tools were extracted following PRISMA guidelines. When items were shown to be sufficiently comparable, a random-effects meta-analysis was used to pool estimates across studies. Effect size (ES) and its 95% confidence interval (CI) was calculated. The meta-analysis indicated that (poly)phenol supplementation significantly increased brain-derived neurotrophic factor (ES = 3.259, p = 0.033), which was accompanied by higher performance in serial (7s) subtraction (ES = 1.467, p = 0.001) and decreases in simple reaction time (ES = −0.926, p = 0.015) and mental fatigue (ES = −3.521, p = 0.010). Data related to cognitive function were skewed towards an effect from acute compared to chronic polyphenol intervention; data related to BDNF were skewed toward an effect from higher bioavailability phenolic components. Conclusion: This meta-analysis provides promising findings regarding the usefulness of polyphenol-rich intervention as an inexpensive approach for enhancing circulation of pro-cognitive neurotrophic factors. These beneficial effects appear to depend on the supplementation protocols. An early acute and/or chronic application of low- to high-dose phenolic components with high bioavailability rates (≥30%) at a younger age appear to provide more promising effects.
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20
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Effects of natural polyphenol-rich pomegranate juice supplementation on plasma ion and lipid profiles following resistance exercise: a placebo-controlled trial. Nutr Metab (Lond) 2020; 17:31. [PMID: 32322289 PMCID: PMC7164179 DOI: 10.1186/s12986-020-00451-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 04/06/2020] [Indexed: 01/03/2023] Open
Abstract
Background Pomegranate juice (POMj) contains abundant soluble polyphenolic antioxidant compounds and is recommended for its cardioprotective/atheroprotective properties. However, very few studies have investigated the efficacy of POMj supplementation to alter physiological responses during intensive physical exercise. This placebo-controlled study aimed to examine whether supplementation with natural polyphenol-rich-POMj could influence the ionic or lipid responses to an intensive resistance training session in elite athletes. Methods Nine elite weightlifters (21 ± 1 years) performed two Olympic-weightlifting sessions after ingesting placebo and POMj supplements. Venous blood samples were collected at rest and 3 min after each session for assessment of plasma sodium ([Na+]), potassium ([K+]), chloride ([Cl-]), calcium ([Ca2+]), triglyceride ([TG]) and high-density lipoprotein ([HDL-C]), low-density lipoprotein ([HDL-C]) and total ([TC]) cholesterol concentrations. Results Plasma [K+] and [TG] were lowered post-exercise compared to resting values in the PLA condition (p = 0.03 for K+ and p = 0.02 for TG) with no pre-to-post exercise differences in the other plasma ion and lipid markers (p > 0.05). Compared to rest, plasma [Na+] and [Cl-] were increased (p = 0.04, %change = 4.10% for Na+ and p = 0.02, %change = 4.44% for Cl-), but there were no differences in the other plasma ion or lipid markers post-exercise after POMj supplementation (p > 0.05). Post-exercise plasma [Na+], [Cl-], and [HDL-C] were greater following POMj supplementation compared to PLA (p = 0.01 for Cl- and HDL-C, p = 0.02 for Na+, and p = 0.04 for TC), with no between-supplement post-exercise differences in the other ion and lipid markers (p > 0.05). Conclusion In conclusion, supplementation with POMj has the potential to attenuate the acute imbalance of plasma [K+] and to improve blood lipid responses (i.e., HDL-C) following resistance exercises in elite weightlifters. However, further large research in both athletic and non-athletic populations is needed to corroborate these preliminary observations and to elucidate the potential underlying mechanisms and translational potential of our novel observations. Trial registration Name of the registry:ClinicalTrials.gov PRSThe registration number:NCT02697903.Date of Registry: 03/03/2016 'Retrospectively registered'.The registration title: Pomegranate Improve Biological Recovery Kinetics in Elite Weightlifter. Graphical abstract
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Delgado NTB, Rouver WN, Dos Santos RL. Protective Effects of Pomegranate in Endothelial Dysfunction. Curr Pharm Des 2020; 26:3684-3699. [PMID: 32250215 DOI: 10.2174/1381612826666200406152147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/10/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Punica granatum L. is an infructescence native of occidental Asia and Mediterranean Europe, popularly referred to as pomegranate. It has been used in ethnomedicine for several applications, including the treatment of obesity, inflammation, diabetes, and the regulation of blood lipid parameters. Thus, pomegranate has been linked to the treatment of cardiovascular diseases that have endothelial dysfunction as a common factor acting mainly against oxidative stress due to its high polyphenol content. Its biocomponents have antihypertensive, antiatherogenic, antihyperglycemic, and anti-inflammatory properties, which promote cardiovascular protection through the improvement of endothelial function. METHODS Different electronic databases were searched in a non-systematic way to uncover the literature of interest. CONCLUSION This review article presents updated information on the role of pomegranate in the context of endothelial dysfunction and cardiovascular diseases. We have shown that pomegranate, or rather its components (e.g., tannins, flavonoids, phytoestrogens, anthocyanins, alkaloids, etc.), have beneficial effects on the cardiovascular system, improving parameters such as oxidative stress and the enzymatic antioxidant system, reducing reactive oxygen species formation and acting in an anti-inflammatory way. Thus, this review may contribute to a better understanding of pomegranate's beneficial actions on endothelial function and possibly to the development of strategies associated with conventional treatments of cardiovascular diseases.
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Affiliation(s)
- Nathalie T B Delgado
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Wender N Rouver
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
| | - Roger L Dos Santos
- Department of Physiological Sciences, Federal University of Espirito Santo, Vitoria, Brazil
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Ammar A, Trabelsi K, Müller P, Bouaziz B, Boukhris O, Glenn JM, Bott N, Driss T, Chtourou H, Müller N, Hökelmann A. The Effect of (Poly)phenol-Rich Interventions on Cognitive Functions and Neuroprotective Measures in Healthy Aging Adults: A Systematic Review and Meta-Analysis. J Clin Med 2020; 9:jcm9030835. [PMID: 32204500 PMCID: PMC7141326 DOI: 10.3390/jcm9030835] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/10/2020] [Accepted: 03/13/2020] [Indexed: 12/12/2022] Open
Abstract
Context: As the food industry is continually involved in the development of new attractive alternative therapeutic agents, the evaluation of the beneficial impact of (poly)phenols on cognitive and brain function during aging has gained increasing interest. Objective: This systematic review and meta-analysis aimed to evaluate the acute and chronic effects of (poly)phenol-rich diet supplementation on cognitive function and brain health in aging adults. Data Sources: PubMed and Web of Science databases were searched for relevant randomized placebo-controlled trials (RCTs) published from inception to July 2019. Study Selection: Two researchers independently screened 4303 records, using the PICOS criteria: Participants were aging adults; Intervention was based on acute and/or chronic (poly)phenols-rich supplementation; Comparator was any comparator; Outcomes included cognitive function and neuroprotective measures; and Study design was RCTs. A third researcher was consulted when discrepancies arose. Fifteen high-quality (mean PEDro score = 8.8 ± 0.56) RCTs (total participants: 918 healthy older adults) were included in the final sample. Data Extraction: Information on study design, employed treatment, characteristics of participants, outcomes, and the correspondent assessing methods were extracted. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Data Analysis and Results: A random-effects meta-analysis was used to pool estimates across studies. Effect size (ES) and its 95% confidence interval (CI) was calculated. Pooled results yielded a trivial ES (−0.2 to 0.03) for brain-derived neurotrophic factor and neuroinflammatory parameters and small (0.36) to moderate (0.82) ES for executive functions. Conclusion: This meta-analysis failed to provide evidence regarding the neuroprotective and anti-inflammatory effect of (poly)phenols supplementation in aging adults. However, findings from individual studies, included in this systematic review, suggest polyphenol-rich supplementation may improve some cognitive and brain functions in older adults. The beneficial effect of polyphenols seems to depend on ingested dose and bioavailability. Results suggest at least an intermediate dose (≥500 mg), and intermediate (≈9%) to high (43%) bioavailability rates are needed to cross the brain blood barrier and to exert a significant effect on cognitive health.
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Affiliation(s)
- Achraf Ammar
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
- Correspondence: ; Tel.: +49-(0)-391-67-57395
| | - Khaled Trabelsi
- UR15JS01: Education, Motricity, Sport and Health (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.)
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia
| | - Patrick Müller
- German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (P.M.); (N.M.)
- Department of Neurology, Medical Faculty, Otto von Guericke University, 39104 Magdeburg, Germany
| | - Bassem Bouaziz
- Higher Institute of Computer Science and Multimedia of Sfax, University of Sfax, Sfax 3000, Tunisia;
| | - Omar Boukhris
- UR15JS01: Education, Motricity, Sport and Health (EM2S), High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia; (K.T.); (O.B.)
- High Institute of Sport and Physical Education, University of Sfax, Sfax 3000, Tunisia
| | - Jordan M Glenn
- Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR 72701, USA;
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA;
| | - Nick Bott
- Neurotrack Technologies, 399 Bradford St, Redwood City, CA 94063, USA;
- Clinical Excellence Research Center, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University, 92000 Nanterre, France;
| | - Hamdi Chtourou
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sport, Tunis 1003, Tunisia;
| | - Notger Müller
- German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany; (P.M.); (N.M.)
| | - Anita Hökelmann
- Institute of Sport Sciences, Otto-von-Guericke University, 39104 Magdeburg, Germany;
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Karwowska M, Kononiuk A. Nitrates/Nitrites in Food-Risk for Nitrosative Stress and Benefits. Antioxidants (Basel) 2020; 9:E241. [PMID: 32188080 PMCID: PMC7139399 DOI: 10.3390/antiox9030241] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/03/2020] [Accepted: 03/11/2020] [Indexed: 12/12/2022] Open
Abstract
In the context of impact on human health, nitrite/nitrate and related nitrogen species such as nitric oxide (NO) are a matter of increasing scientific controversy. An increase in the content of reactive nitrogen species may result in nitrosative stress-a deleterious process, which can be an important mediator of damage to cell structures, including lipids, membranes, proteins and DNA. Nitrates and nitrites are widespread in the environment and occur naturally in foods of plant origin as a part of the nitrogen cycle. Additionally, these compounds are used as additives to improve food quality and protect against microbial contamination and chemical changes. Some vegetables such as raw spinach, beets, celery and lettuce are considered to contain high concentrations of nitrates. Due to the high consumption of vegetables, they have been identified as the primary source of nitrates in the human diet. Processed meats are another source of nitrites in our diet because the meat industry uses nitrates/nitrites as additives in the meat curing process. Although the vast majority of consumed nitrates and nitrites come from natural vegetables and fruits rather than food additives, there is currently a great deal of consumer pressure for the production of meat products free of or with reduced quantities of these compounds. This is because, for years, the cancer risks of nitrates/nitrites have been considered, since they potentially convert into the nitrosamines that have carcinogenic effects. This has resulted in the development and rapid expansion of meat products processed with plant-derived nitrates as nitrite alternatives in meat products. On the other hand, recently, these two ions have been discussed as essential nutrients which allow nitric oxide production and thus help cardiovascular health. Thus, this manuscript reviews the main sources of dietary exposure to nitrates and nitrites, metabolism of nitrites/nitrates, and health concerns related to dietary nitrites/nitrates, with particular emphasis on the effect on nitrosative stress, the role of nitrites/nitrates in meat products and alternatives to these additives used in meat products.
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Affiliation(s)
- Małgorzata Karwowska
- Department of Meat Technology and Food Quality, University of Life Sciences in Lublin, ul. Skromna 8, 20-704 Lublin, Poland;
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Dietary supplementation with New Zealand blackcurrant extract enhances fat oxidation during submaximal exercise in the heat. J Sci Med Sport 2020; 23:908-912. [PMID: 32171647 DOI: 10.1016/j.jsams.2020.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 08/14/2019] [Accepted: 02/29/2020] [Indexed: 01/23/2023]
Abstract
OBJECTIVES This study investigated the effect of 7 days' supplementation with New Zealand blackcurrant extract on thermoregulation and substrate metabolism during running in the heat. DESIGN Randomized, double-blind, cross-over study. METHODS Twelve men and six women (mean±SD: Age 27±6 years, height 1.76±0.10m, mass 74±12kg, V̇O2max 53.4±7.0mLkg-1min-1) completed one assessment of maximal aerobic capacity and one familiarisation trial (18°C, 40% relative humidity, RH), before ingesting 2×300mgday-1 capsules of CurraNZ™ (each containing 105mg anthocyanin) or a visually matched placebo (2×300mg microcrystalline cellulose M102) for 7 days (washout 14 days). On day 7 of each supplementation period, participants completed 60min of fasted running at 65% V̇O2max in hot ambient conditions (34°C and 40% relative humidity). RESULTS Carbohydrate oxidation was decreased in the NZBC trial [by 0.24gmin-1 (95% CI: 0.21-0.27gmin-1)] compared to placebo (p= 0.014, d=0.46), and fat oxidation was increased in the NZBC trial [by 0.12gmin-1 (95% CI: 0.10 to 0.15gmin-1)], compared to placebo (p=0.008, d=0.57). NZBC did not influence heart rate (p=0.963), rectal temperature (p=0.380), skin temperature (p=0.955), body temperature (p=0.214) or physiological strain index (p=0.705) during exercise. CONCLUSIONS Seven-days intake of 600mg NZBC extract increased fat oxidation without influencing cardiorespiratory or thermoregulatory variables during prolonged moderate intensity running in hot conditions.
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Vučić V, Grabež M, Trchounian A, Arsić A. Composition and Potential Health Benefits of Pomegranate: A Review. Curr Pharm Des 2020; 25:1817-1827. [PMID: 31298147 DOI: 10.2174/1381612825666190708183941] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Pomegranate (Punica granatum L.) fruits are widely consumed and used as preventive and therapeutic agents since ancient times. Pomegranate is a rich source of a variety of phytochemicals, which are responsible for its strong antioxidative and anti-inflammatory potential. OBJECTIVE The aim of this review is to provide an up-to-date overview of the current knowledge of chemical structure and potential health benefits of pomegranate. METHODS A comprehensive search of available literature. RESULTS The review of the literature confirms that juice and extracts obtained from different parts of this plant, including fruit peel, seeds, and leaves exert health benefits in both in vitro and in vivo studies. The antidiabetic, antihypertensive, antimicrobial and anti-tumour effects of pomegranate fruit are of particular scientific and clinical interest. CONCLUSION Further investigations are required to clarify the mechanism of action of the bioactive ingredients and to reveal full potential of pomegranate as both preventive and therapeutic agent.
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Affiliation(s)
- Vesna Vučić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, studentskitry 1, Belgrade, Serbia
| | - Milkica Grabež
- Faculty of Medicine, University of Banja Luka, Bosnia and Herzegovina, Republika Srpska
| | - Armen Trchounian
- Department of Biochemistry, Microbiology and Biotechnology, Yerevan State University, Yerevan 0025, Armenia
| | - Aleksandra Arsić
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, studentskitry 1, Belgrade, Serbia
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Preventive Effect of Liupao Tea Polyphenols on HCl/Ethanol-Induced Gastric Injury in Mice. J FOOD QUALITY 2020. [DOI: 10.1155/2020/5462836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Liupao tea is a traditional Chinese tea drink. The preventive effect of crude polyphenols in Liupao tea on HCl/ethanol-induced gastric injury was investigated in this study. After a model of gastric injury in mice was established, mouse serum and tissues were analyzed by biochemical and molecular biological methods. The results showed that Liupao tea polyphenols (LTPs) could effectively reduce the area of gastric mucosal lesions, decrease the volume of gastric juice, and increase the pH of gastric juice in mice with gastric injury. Observations of the pathology revealed that LTPs could alleviate cell necrosis and gastric mucosal injury in mice with gastric injury. The SOD activity and GSH level were decreased in mice after gastric injury, while the level of MDA was increased. LTPs could inhibit the changes caused by gastric injury and make the SOD activity, GSH, and MDA levels close to the normal levels. In addition, LTPs could upregulate the mRNA expression of Cu/Zn-SOD, Mn-SOD, CAT, nNOS, and eNOS and downregulate the expression of iNOS in the gastric tissue of mice with gastric injury. Therefore, LTPs can effectively prevent HCl/ethanol-induced gastric injury. HPLC analysis showed that LTP contains six bioactive substances of gallic acid, catechin, caffeine, epicatechin, epigallocatechin gallate, and epicatechin gallate, so the effect of LTP might mainly come from these six components. The effect of a high concentration of LTP is similar to that of ranitidine. LTPs represent a kind of active substance with a protective effect on gastric tissue.
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Barati Boldaji R, Akhlaghi M, Sagheb MM, Esmaeilinezhad Z. Pomegranate juice improves cardiometabolic risk factors, biomarkers of oxidative stress and inflammation in hemodialysis patients: a randomized crossover trial. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:846-854. [PMID: 31646650 DOI: 10.1002/jsfa.10096] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 09/28/2019] [Accepted: 10/13/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Pomegranate has antioxidant, cardioprotective and anti-inflammatory properties. We designed a crossover study aimed at determining if consumption of pomegranate juice (PJ) improves lipid profile and oxidative and inflammatory biomarkers of hemodialysis patients. Forty-one hemodialysis patients were randomly assigned to one of two groups: PJ-treated group receiving 100 mL of natural PJ immediately after their dialysis session three times a week and the control group receiving the usual care. After 8 weeks, a 4-week washout period was established and then the role of the groups was exchanged. Lipid profile, blood pressure and oxidative and inflammatory biomarkers were measured before and after each sequence. RESULTS Based on the results of intention-to-treat analysis, triglycerides were decreased in PJ condition and increased in the controls. Conversely, high-density lipoprotein cholesterol was increased in PJ and decreased in the control group. Total and low-density lipoprotein cholesterol did not significantly change in either condition. Systolic and diastolic blood pressure significantly decreased in PJ condition. Total antioxidant capacity increased in PJ condition (P < 0.001) and decreased in the controls (P < 0.001). Conversely, malondialdehyde and interleukin-6 decreased in PJ (P < 0.001) and increased in the control group (P ≤ 0.001). The changes of these biomarkers were significantly different between the two conditions. CONCLUSIONS Eight-week PJ consumption showed beneficial effects on blood pressure, serum triglycerides, high-density lipoprotein cholesterol, oxidative stress and inflammation in hemodialysis patients. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Reza Barati Boldaji
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoumeh Akhlaghi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Mahdi Sagheb
- Department of Nephrology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Esmaeilinezhad
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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Gonzalez AM, Trexler ET. Effects of Citrulline Supplementation on Exercise Performance in Humans: A Review of the Current Literature. J Strength Cond Res 2020; 34:1480-1495. [DOI: 10.1519/jsc.0000000000003426] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Kutan Fenercioglu A, Saler T, Genc E, Altuntaş Y. The Relationship of Oxidative and Metabolic Parameters With Hemoglobin A1c in Type 2 Diabetes Mellitus. ANKARA MEDICAL JOURNAL 2019. [DOI: 10.17098/amj.651971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Sundar UM, Ugusman A, Chua HK, Latip J, Aminuddin A. Piper sarmentosum Promotes Endothelial Nitric Oxide Production by Reducing Asymmetric Dimethylarginine in Tumor Necrosis Factor-α-Induced Human Umbilical Vein Endothelial Cells. Front Pharmacol 2019; 10:1033. [PMID: 31607906 PMCID: PMC6758593 DOI: 10.3389/fphar.2019.01033] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 08/14/2019] [Indexed: 12/11/2022] Open
Abstract
Asymmetric dimethylarginine (ADMA) is an endogenous inhibitor of endothelial nitric oxide synthase (eNOS). ADMA is degraded by dimethylarginine dimethylaminohydrolase (DDAH). Elevated levels of ADMA lead to reduction in nitric oxide (NO) production, which is linked to endothelial dysfunction and atherosclerosis. Piper sarmentosum is an herb that has shown stimulation on endothelial NO production by increasing both expression and activity of eNOS. Thus, this study determined whether the positive effect of P. sarmentosum on NO production is related to its modulation on the DDAH-ADMA pathway in cultured human umbilical vein endothelial cells (HUVEC) exposed to tumor necrosis factor-α (TNF-α). HUVEC were divided into four groups: control, treatment with 250 µg/ml of aqueous extract of P. sarmentosum leaves (AEPS), treatment with 30 ng/ml of TNF-α, and concomitant treatment with AEPS and TNF-α for 24 h. After treatments, HUVEC were collected to measure DDAH1 messenger RNA (mRNA) expression using quantitative real-time polymerase chain reaction. DDAH1 protein level was measured using enzyme-linked immunosorbent assay (ELISA), and DDAH enzyme activity was measured using colorimetric assay. ADMA concentration was measured using ELISA, and NO level was measured using Griess assay. Compared to control, TNF-α-treated HUVEC showed reduction in DDAH1 mRNA expression (P < 0.05), DDAH1 protein level (P < 0.01), and DDAH activity (P < 0.05). Treatment with AEPS successfully increased DDAH1 mRNA expression (P < 0.05), DDAH1 protein level (P < 0.01), and DDAH activity (P < 0.05) in TNF-α-treated HUVEC. Treatment with TNF-α caused an increase in ADMA level (P < 0.01) and a decrease in endothelial NO production (P < 0.001). Whereas treatment with AEPS was able to reduce ADMA level (P < 0.01) and restore NO (P < 0.001) in TNF-α-treated HUVEC. The results suggested that AEPS promotes endothelial NO production by stimulating DDAH activity and thus reducing ADMA level in TNF-α-treated HUVEC.
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Affiliation(s)
- Uma Mahgesswary Sundar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Hui Kien Chua
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Jalifah Latip
- Department of Pharmaceutical Chemistry, School of Chemical Sciences & Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Amilia Aminuddin
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Urbaniak A, Skarpańska-Stejnborn A. Effect of pomegranate fruit supplementation on performance and various markers in athletes and active subjects: A systematic review. INT J VITAM NUTR RES 2019; 91:547-561. [PMID: 31512981 DOI: 10.1024/0300-9831/a000601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of the study was to review recent findings on the use of POM supplements in athletes of various disciplines and physically active participants. Eleven articles published between 2010 and 2018 were included, where the total number of investigated subjects was 176. Male participants constituted the majority of the group (n = 155), as compared to females (n = 21). 45% of research described was conducted on athletes, whereas the remaining studies were based on highly active participants. Randomised, crossover, double-blind study designs constituted the majority of the experimental designs used. POM supplementation varied in terms of form (pills/juice), dosage (50 ml-500 ml) and time of intervention (7 days-2 months) between studies. Among the reviewed articles, POM supplementation had an effect on the improvement of the following: whole body strength; feeling of vitality; acute and delayed muscle fatigue and soreness; increase in vessel diameter; blood flow and serum level of TAC; reduction in the rate of increase for HR, SBP, CK and LDH; support in the recovery of post-training CK, LDH, CRP and ASAT to their baseline levels; reduction of MMP2, MMP9, hsCRP and MDA; and increased activity of antioxidant enzymes (glutathione peroxidase and superoxide dismutase). In the majority of reviewed articles POM supplementation had a positive effect on a variety of parameters studied and the authors recommended it as a supplement for athletes and physically active bodies.
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Affiliation(s)
- Alicja Urbaniak
- Department of Morphological Sciences, Biology and Health Sciences, Faculty of Physical Culture in Gorzów Wlkp., University School of Physical Education in Poznań, Poland
| | - Anna Skarpańska-Stejnborn
- Department of Morphological Sciences, Biology and Health Sciences, Faculty of Physical Culture in Gorzów Wlkp., University School of Physical Education in Poznań, Poland
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Wu Shan Shen Cha ( Malus asiatica Nakai. Leaves)-Derived Flavonoids Alleviate Alcohol-Induced Gastric Injury in Mice via an Anti-Oxidative Mechanism. Biomolecules 2019; 9:biom9050169. [PMID: 31058806 PMCID: PMC6571911 DOI: 10.3390/biom9050169] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/03/2019] [Accepted: 04/10/2019] [Indexed: 12/22/2022] Open
Abstract
Wu Shan Shen Cha is the leaf of Malus asiatica Nakai., a special type of tea that is consumed in the same way as green tea. To study the effect of Wu Shan Shen Cha-derived flavonoids (WSSCF) on lesions in the stomach, a 15% hydrochloric acid–95% ethanol (volume ratio 4:6) solution was used to induce gastric injury in mice. The degree of gastric injury was assessed using tissue specimens, and the effects of WSSCF on the serum levels of antioxidant enzymes were investigated. The results showed that WSSCF could alleviate the damage of the gastric mucosa and gastric wall caused by the hydrochloric acid–ethanol solution, decrease the tissue and serum levels of malondialdehyde (MDA) in mice with gastric injury, and increase the serum levels of superoxide dismutase (SOD) and glutathione (GSH). The results of quantitative polymerase chain reaction (qPCR) showed that WSSCF could increase the mRNA expression of Mn-SOD, Cu/Zn-SOD, catalase (CAT), endothelial nitric oxide synthase (eNOS), and neuronal nitric oxide synthase (nNOS) in tissue specimens from mice with gastric injury and decrease the expression of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). At the same time, the results of the high concentration of WSSCF (WSSCFH) group were closer to those of the drug (ranitidine) treatment group. Wu Shan Shen Cha-derived flavonoids had a good antioxidant effect, so as to play a preventive role in alcoholic gastric injury.
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Liu X, Cao K, Lv W, Feng Z, Liu J, Gao J, Li H, Zang W, Liu J. Punicalagin attenuates endothelial dysfunction by activating FoxO1, a pivotal regulating switch of mitochondrial biogenesis. Free Radic Biol Med 2019; 135:251-260. [PMID: 30878647 DOI: 10.1016/j.freeradbiomed.2019.03.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/08/2019] [Accepted: 03/09/2019] [Indexed: 01/04/2023]
Abstract
Accumulating evidence has elucidated that hyperlipidemia is closely associated with an increasing prevalence of CVDs (cardiovascular diseases) because of endothelial dysfunction. In the present study, we investigated the effect and mechanism of PU (Punicalagin), a major ellagitannin in pomegranate, on endothelial dysfunction both in vivo and in vitro. In vivo, PU significantly ameliorated hyperlipidemia-induced accumulation of serum triglyceride and cholesterol as well as endothelial and mitochondrial dysfunction of thoracic aorta. Intriguingly, the FoxO1 (forkhead box O1) pathway was activated, which may account for prevention of vascular dysfunction and mitochondrial loss via upregulating mitochondrial biogenesis. In line, through in vitro cell cultures, our study demonstrated that PU not only increased the total FoxO1 protein, but also enhanced its nuclear translocation. In addition, silencing of FoxO1 remarkably abolished the ability of PU to augment the mitochondrial biogenesis, eNOS (endothelial NO synthase) expression, and oxidative stress, implying the irreplaceable role of FoxO1 in regulating endothelial function in the presence of PU. Conversely, suppression of excessive ROS (reactive oxygen species) secured the PA (palmitate)-induced decrease of FoxO1 expression, implying that there was a cross-talk between FoxO1 pathway and ROS. Concomitantly, the inflammatory response in current study was primarily mediated via p38 MAPK/NF-κB signaling pathway besides of FoxO1 pathway. Taken together, our findings suggest that PU ameliorates endothelial dysfunction by activating FoxO1 pathway, a pivotal regulating switch of mitochondrial biogenesis.
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Affiliation(s)
- Xuyun Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Ke Cao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Weiqiang Lv
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Zhihui Feng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jing Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Jing Gao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Hua Li
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Weijin Zang
- Department of Pharmacology, School of Basic Medical Sciences, Xian Jiaotong University Health Science Center, Xi'an 710061, China
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology and Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China.
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Liu B, Feng X, Zhang J, Wei Y, Zhao X. Preventive Effect of Anji White Tea Flavonoids on Alcohol-Induced Gastric Injury through Their Antioxidant Effects in Kunming Mice. Biomolecules 2019; 9:biom9040137. [PMID: 30987336 PMCID: PMC6523235 DOI: 10.3390/biom9040137] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/27/2019] [Accepted: 04/01/2019] [Indexed: 02/06/2023] Open
Abstract
Anji white tea (Camellia sinensis) is a traditional Chinese tea beverage, which is classified as green tea and contains an abundant amount of flavonoids. In this study, the preventive effect of Anji white tea flavonoids (AJWTFs) on ethanol/hydrochloric acid-induced gastric injury in mice was evaluated. The serum and gastric tissues of mice were analyzed using a biochemical kit and by quantitative polymerase chain reaction (qPCR). Observation of the appearance of the stomach indicated that AJWTFs could effectively reduce the area of gastric injury caused by ethanol/hydrochloric acid, and the inhibition rate of AJWTF on gastric injury increased with an increase in AJWTF concentration. The Anji white tea flavonoids could also reduce the volume and pH of gastric juice in mice with gastric injury. Biochemical results showed that AJWTFs could increase the superoxide dismutase (SOD) and glutathione (GSH) activities, as well as decrease the malondialdehyde (MDA) level, in the serum and liver of mice with gastric injury. Pathological observation confirmed that AJWTFs could inhibit the tissue damage caused by ethanol/hydrochloric acid in the stomach of mice. Further qPCR experiments also showed that AJWTFs could inhibit the decreases in neuronal nitric oxide synthase (nNOS), endothelial nitric oxide synthase (eNOS), copper/zinc superoxide dismutase (Cu/Zn–SOD), manganese superoxide dismutase (Mn–SOD), catalase (CAT), and the increase in inducible nitric oxide synthase (iNOS) expression in the gastric tissue of mice caused by gastric injury. As observed, AJWTFs exerted a good preventive effect on alcohol-induced gastric injury in mice induced by ethanol/hydrochloric acid, and the effect is close to that of ranitidine. Anji white tea flavonoids present good antioxidant effect, which allows them to effectively prevent alcoholic gastric injury and be used as biologically active substances with a broad range of applications.
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Affiliation(s)
- Bihui Liu
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China.
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China.
| | - Xingxing Feng
- College of Biological and Chemical Engineering, Chongqing University of Education, Chongqing 400067, China.
| | - Jing Zhang
- Environment and Quality Inspection College, Chongqing Chemical Industry Vocational College, Chongqing 401228, China.
| | - Yang Wei
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China.
| | - Xin Zhao
- Chongqing Collaborative Innovation Center for Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Research Center of Functional Food, Chongqing University of Education, Chongqing 400067, China.
- Chongqing Engineering Laboratory for Research and Development of Functional Food, Chongqing University of Education, Chongqing 400067, China.
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Effects of dietary sports supplements on metabolite accumulation, vasodilation and cellular swelling in relation to muscle hypertrophy: A focus on “secondary” physiological determinants. Nutrition 2019; 60:241-251. [DOI: 10.1016/j.nut.2018.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 09/29/2018] [Accepted: 10/07/2018] [Indexed: 01/10/2023]
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Pomegranate Extract Improves Maximal Performance of Trained Cyclists after an Exhausting Endurance Trial: A Randomised Controlled Trial. Nutrients 2019; 11:nu11040721. [PMID: 30925733 PMCID: PMC6521089 DOI: 10.3390/nu11040721] [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] [Received: 01/10/2019] [Revised: 03/21/2019] [Accepted: 03/25/2019] [Indexed: 12/30/2022] Open
Abstract
The efficacy of pomegranate (Punica granatum) extract (PE) for improving performance and post-exercise recovery in an active population was equivocal in previous studies. In this study, a randomised, double-blinded, placebo-controlled, balanced, cross-over trial with two arms was conducted. Eligibility criteria for participants were as follows: male, amateur cyclist, with a training routine of 2 to 4 sessions per week (at least one hour per session). The cyclists (n = 26) were divided into treatment (PE) and placebo (PLA) groups for a period of 15 days. After physical tests, the groups were exchanged after a 14-day washout period. Exercise tests consisted of endurance bouts (square-wave endurance exercise test followed by an incremental exercise test to exhaustion) and an eccentric exercise drill. The objective was to assess the efficacy of PE in performance outcomes and post-exercise muscular recovery and force restoration after a prolonged submaximal effort. Twenty-six participants were included for statistical analysis. There was a statistically significant difference in total time to exhaustion (TTE)(17.66–170.94 s, p < 0.02) and the time to reach ventilatory threshold 2 (VT2)(26.98–82.55 s, p < 0.001), with greater values for the PE compared to the PLA group. No significant results were obtained for force restoration in the isokinetic unilateral low limb test. PE, after a prolonged submaximal effort, may be effective in improving performance outcomes at maximal effort and might help to restore force in the damaged muscles.
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Zarobkiewicz MK, Sławiński MA, Wawryk-Gawda E, Woźniakowski MM, Kulak-Janczy E, Korzeniowska S, Jodłowska-Jędrych B. Changes in histological structure and nitric oxide synthase expression in aorta of rats supplemented with bee pollen or whey protein. Appl Physiol Nutr Metab 2019; 44:1150-1158. [PMID: 30835492 DOI: 10.1139/apnm-2018-0702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Various protein-based supplements are at least periodically consumed by 30%-40% of sportspeople. The current study compares cardiovascular effects of diet supplementation with 2 different protein-rich products: bee pollen and whey protein. Thirty Wistar rats were divided into 2 groups, one subjected to daily moderate physical activity and one not. Each group consisted of 3 subgroups: control, whey-protein-supplemented, and bee-pollen-supplemented. After 8 weeks, rats were decapitated, and proximal parts of thoracic aortas were collected and embedded in paraffin blocks. Histological slides were stained according to standard hematoxylin and eosin, Masson's trichrome, and Verhoeff - Van Gieson staining. Special immunohistochemical stains against neuronal nitric oxide synthase (nNOS), endothelial nitric oxide synthase (eNOS), and alpha smooth muscle actin were also prepared. Histological evaluation revealed noticeable changes in all supplemented groups: disturbances in elastic laminae, slight increase in collagen deposition, and significantly lowered nNOS and eNOS expression. The prevalence of small atherosclerotic plaques was the highest in non-running supplemented groups, while in running supplemented groups it resembled the prevalence in control groups. Both running groups had thinner tunica media than control. Both supplements exert visible effects on aortic structure, but the difference between them is far less evident. In some aspects, however, the bee pollen seems to be even slightly more harmful, which may be related to various possible contaminants like mycotoxins or pesticides.
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Affiliation(s)
- Michał K Zarobkiewicz
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Mirosław A Sławiński
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Ewelina Wawryk-Gawda
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Mateusz M Woźniakowski
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Emilia Kulak-Janczy
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Sylwia Korzeniowska
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
| | - Barbara Jodłowska-Jędrych
- Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland.,Department of Histology and Embryology with Experimental Cytology Unit, Medical University of Lublin, Poland
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38
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Effects of pomegranate supplementation on exercise performance and post-exercise recovery in healthy adults: a systematic review. Br J Nutr 2018; 120:1201-1216. [DOI: 10.1017/s0007114518002696] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AbstractThe functional significance of pomegranate (POM) supplementation on physiological responses during and following exercise is currently unclear. This systematic review aimed (i) to evaluate the existing literature assessing the effects of POM supplementation on exercise performance and recovery; exercise-induced muscle damage, oxidative stress, inflammation; and cardiovascular function in healthy adults and (ii) to outline the experimental conditions in which POM supplementation is more or less likely to benefit exercise performance and/or recovery. Multiple electronic databases were used to search for studies examining the effects of POM intake on physiological responses during and/or following exercise in healthy adult. Articles were included in the review if they investigated the effects of an acute or chronic POM supplementation on exercise performance, recovery and/or physiological responses during or following exercise. The existing evidence suggests that POM supplementation has the potential to confer antioxidant and anti-inflammatory effects during and following exercise, to improve cardiovascular responses during exercise, and to enhance endurance and strength performance and post-exercise recovery. However, the beneficial effects of POM supplementation appeared to be less likely when (i) unilateral eccentric exercise was employed, (ii) the POM administered was not rich in polyphenols (<1·69 g/l) and (iii) insufficient time was provided between POM-ingestion and the assessment of physiological responses/performance (≤1 h). The review indicates that POM has the potential to enhance exercise performance and to expedite recovery from intensive exercise. The findings and recommendations from this review may help to optimise POM-supplementation practice in athletes and coaches to potentially improve exercise-performance and post-exercise recovery.
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Multiday Pomegranate Extract Supplementation Decreases Oxygen Uptake During Submaximal Cycling Exercise, but Cosupplementation With N-acetylcysteine Negates the Effect. Int J Sport Nutr Exerc Metab 2018; 28:586-592. [PMID: 29431536 DOI: 10.1123/ijsnem.2017-0407] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pomegranate extract (POMx) has been suggested as an ergogenic aid due to its rich concentration of polyphenols, which are proposed to enhance nitric oxide bioavailability, thereby improving the efficiency of oxygen usage and, consequently, endurance exercise performance. Although acute POMx supplementation improves aerobic exercise performance in untrained individuals, trained athletes appear to require chronic supplementation for a similar effect. Furthermore, the combination of POMx with a thiol antioxidant may prove more effective than POMx alone, due to the protective effects of thiols on nitric oxide. Thus, this study hypothesized that multiday POMx supplementation would decrease the oxygen uptake (VO2) required by trained cyclists to perform submaximal exercise and increase performance during a time trial, and that thiol (N-acetylcysteine [NAC]) cosupplementation would enhance these effects. Eight cyclists completed four 8-day supplementation periods: POMx only, NAC only, POMx + NAC (BOTH), and placebo. Following supplementation, they performed submaximal cycling and a 5-min time trial, with VO2 and muscle oxygen saturation (SmO2) being recorded. A three-way (POMx × NAC × Intensity) repeated-measures analysis of variance with a Fisher's least significant difference post hoc assessment was performed for dependent variables (p ≤ .05). VO2 during submaximal exercise was reduced with POMx versus placebo (-2.6 ml·min-1·kg-1, p = .009) and BOTH (-2.5 ml·min-1·kg-1, p < .05) and increased with NAC (+1.9 ml·min-1·kg-1, p < .03), despite no main effect of treatment on SmO2 or performance. It appears that POMx's high polyphenol content reduced the VO2 required during submaximal exercise. However, NAC cosupplementation annulled this effect; thus, NAC may interact with nitric oxide to reduce its bioavailability.
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Kazemirad H, Kazerani HR. Nitric oxide plays a pivotal role in cardioprotection induced by pomegranate juice against myocardial ischemia and reperfusion. Phytother Res 2018; 32:2069-2077. [DOI: 10.1002/ptr.6150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 05/05/2018] [Accepted: 06/09/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Hamideh Kazemirad
- Department of Physiology, Faculty of Veterinary Medicine; Ferdowsi University of Mashhad; Mashhad Iran
| | - Hamid Reza Kazerani
- Department of Physiology, Faculty of Veterinary Medicine; Ferdowsi University of Mashhad; Mashhad Iran
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41
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Wang D, Özen C, Abu-Reidah IM, Chigurupati S, Patra JK, Horbanczuk JO, Jóźwik A, Tzvetkov NT, Uhrin P, Atanasov AG. Vasculoprotective Effects of Pomegranate ( Punica granatum L.). Front Pharmacol 2018; 9:544. [PMID: 29881352 PMCID: PMC5977444 DOI: 10.3389/fphar.2018.00544] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/04/2018] [Indexed: 12/19/2022] Open
Abstract
Pomegranate (Punica granatum L.), one of the oldest known edible fruits, is nowadays broadly consumed throughout the world. Its fruits and seeds as well as other anatomical compartments (e.g., flowers and leaves) are rich in numerous bioactive compounds and therefore, the scientific interest in this plant has been constantly growing in recent years. It has been shown that pomegranate and its extracts exhibit potent antioxidative, antimicrobial, and anticarcinogenic properties. The present review summarizes some recent studies on pomegranate, highlighting mainly its vasculoprotective role attributed to the presence of hydrolyzable tannins ellagitannins and ellagic acid, as well as other compounds (e.g., anthocyanins and flavonoids). These in vitro and in vivo studies showed that substances derived from pomegranate reduce oxidative stress and platelet aggregation, diminish lipid uptake by macrophages, positively influence endothelial cell function, and are involved in blood pressure regulation. Clinical studies demonstrated that daily intake of pomegranate juice lessens hypertension and attenuates atherosclerosis in humans. Altogether, the reviewed studies point out the potential benefits of a broader use of pomegranate and its constituents as dietary supplements or as adjuvants in therapy of vascular diseases, such as hypertension, coronary artery disease, and peripheral artery disease.
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Affiliation(s)
- Dongdong Wang
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland.,Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Vienna, Austria.,Institute of Clinical Chemistry, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Cigdem Özen
- Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, Health Campus Balcova, Izmir, Turkey
| | - Ibrahim M Abu-Reidah
- Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraidah, Saudi Arabia
| | - Jayanta Kumar Patra
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Goyang, South Korea
| | - Jarosław O Horbanczuk
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland
| | - Artur Jóźwik
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland
| | - Nikolay T Tzvetkov
- Pharmaceutical Institute, University of Bonn, Bonn, Germany.,Department of Molecular Design and Biochemical Pharmacology, Institute of Molecular Biology "Roumen Tsanev", Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Pavel Uhrin
- Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Atanas G Atanasov
- Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, Jastrzebiec, Poland.,Department of Pharmacognosy, Faculty of Life Sciences, University of Vienna, Vienna, Austria.,Department of Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
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Faisi J, Fattahi A, Raffel N, Hoffmann I, Beckmann MW, Schrauder M, Dittrich R, Löhberg C. Effects of pomegranate seed oil and fermented juice polyphenols fraction in different solvents on copper-induced LDL oxidation. CYTA - JOURNAL OF FOOD 2018. [DOI: 10.1080/19476337.2017.1415375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jawid Faisi
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Amir Fattahi
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Nathalie Raffel
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Inge Hoffmann
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Matthias W. Beckmann
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Michael Schrauder
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Ralf Dittrich
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
| | - Christian Löhberg
- OB/GYN, University Hospital Erlangen, Friedrich-Alexander University, Erlangen-Nürnberg, Erlangen, Germany
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43
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Razani Z, Dastani M, Kazerani HR. Cardioprotective Effects of Pomegranate (Punica granatum) Juice in Patients with Ischemic Heart Disease. Phytother Res 2017; 31:1731-1738. [PMID: 28913846 DOI: 10.1002/ptr.5901] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 07/15/2017] [Accepted: 07/29/2017] [Indexed: 12/31/2022]
Abstract
Ischemic heart disease is the leading cause of mortality worldwide. The purpose of this study was to evaluate the cardioprotective effects of pomegranate juice in patients with ischemic heart disease. One hundred patients, diagnosed with unstable angina or myocardial infarction, were randomly assigned to the test and the control groups (n = 50, each). During 5 days of hospitalization, in addition to the conventional medical therapies, the test groups received 220 mL pomegranate juice, daily. During the hospitalization period, the blood pressure, heart rate, as well as the intensity, occurrence, and duration of the angina were evaluated on a regular basis. At the end of the hospitalization period, the serum levels of malondialdehyde, interleukin-6, and tumor necrosis factor alpha were measured in all patients. The levels of serum troponin and high-sensitive C-reactive protein levels were also assayed in patients diagnosed with myocardial infarction. Pomegranate juice caused significant reductions in the intensity, occurrence, and duration of angina pectoris in patients with unstable angina. Consistently, the test patients had significantly lower levels of serum troponin and malondialdehyde. Other studied parameters did not change significantly. The results of this study suggest protective effects of pomegranate juice against myocardial ischemia and reperfusion injury. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Zahra Razani
- MSc graduate of the School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mostafa Dastani
- Department of Cardiology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Kazerani
- Department of Physiology, The School of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Evidence for the effectiveness of pomegranate supplementation for blood pressure management is weak: A systematic review of randomized clinical trials. Nutr Res 2017; 46:38-48. [PMID: 29173650 DOI: 10.1016/j.nutres.2017.07.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 12/25/2022]
Abstract
Hypertension is one of the most important preventable causes of premature death. Studies have been conducted assessing the impact of pomegranate on blood pressure, with varying results. The aim of this review was to critically appraise and evaluate the effect of pomegranate on blood pressure in adults, using evidence from randomized clinical trials (RCTs). We conducted electronic searches in Medline, Embase, Amed, and The Cochrane Library, and included RCTs assessing the effectiveness of pomegranate on blood pressure. We assessed the reporting quality using the Cochrane criteria. We included 8 RCTs comprising 619 participants. The studies varied in their reporting quality, and compared pomegranate juice or capsules with a control. Two studies reported significant reductions in systolic blood pressure favoring pomegranate: p = .002 and p < .001 respectively; 3 studies reported no significant differences between groups; and 3 studies failed to report between-group differences. Two studies reported significant reductions in diastolic blood pressure favoring pomegranate: p = .038, p < .001, respectively; 4 studies reported no significant between-group differences; and 2 studies did not report between group differences. No adverse events were observed. The limited evidence from clinical trials to date fails to convincingly show a beneficial effect of pomegranate on blood pressure. We have identified evidence gaps and highlight areas for future research to be conducted, including performing studies of high quality and longer duration.
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Martínez-Sánchez A, Alacid F, Rubio-Arias JA, Fernández-Lobato B, Ramos-Campo DJ, Aguayo E. Consumption of Watermelon Juice Enriched in l-Citrulline and Pomegranate Ellagitannins Enhanced Metabolism during Physical Exercise. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4395-4404. [PMID: 28513179 DOI: 10.1021/acs.jafc.7b00586] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
l-Citrulline is a nonessential amino acid precursor of arginine and indirectly a precursor of nitric oxide (NO), which is a vasodilator and increases mitochondrial respiration. On the other hand, the antioxidant pomegranate ellagitannins are precursors of urolithin A, which has been associated with mitophagy and increased muscle function. To elucidate if a single dose of watermelon enrichment with these compounds could have a positive effect after high-intensity exercise (eight sets of eight repetitions of half-squat exercise), a double-blind randomized crossover in vivo study was performed in healthy male subjects (n = 19). Enrichment juices maintained basal levels of blood markers of muscle damage, such as lactate dehydrogenase and myoglobin, and showed a significant maintenance of force during the exercise and a significant decrease in the rating of perceived exertion and muscle soreness after exercise. A positive effect was observed between l-citrulline and ellagitannins, improving the ergogenic effect of watermelon juice.
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Affiliation(s)
- Ascensión Martínez-Sánchez
- Food Quality and Health Group, Institute of Plant Biotechnology (UPCT) , Campus Muralla del Mar, 30202 Cartagena, Spain
| | - Fernando Alacid
- Department of Physical Activity and Sport Science, Faculty of Sport, Catholic University of Murcia (UCAM) , Los Jerónimos Road 135, Guadalupe, Murcia, Spain
| | - Jacobo A Rubio-Arias
- Department of Physical Activity and Sport Science, Faculty of Sport, Catholic University of Murcia (UCAM) , Los Jerónimos Road 135, Guadalupe, Murcia, Spain
| | - Bárbara Fernández-Lobato
- Food Quality and Health Group, Institute of Plant Biotechnology (UPCT) , Campus Muralla del Mar, 30202 Cartagena, Spain
- Pharmacy Departament, Hospital General Universitario Santa Lucı́a , Mezquita s/n, 30202 Cartagena, Spain
| | - Domingo J Ramos-Campo
- Department of Physical Activity and Sport Science, Faculty of Sport, Catholic University of Murcia (UCAM) , Los Jerónimos Road 135, Guadalupe, Murcia, Spain
| | - Encarna Aguayo
- Food Quality and Health Group, Institute of Plant Biotechnology (UPCT) , Campus Muralla del Mar, 30202 Cartagena, Spain
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46
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Moazzen H, Alizadeh M. Effects of Pomegranate Juice on Cardiovascular Risk Factors in Patients with Metabolic Syndrome: a Double-Blinded, Randomized Crossover Controlled Trial. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2017; 72:126-133. [PMID: 28303364 DOI: 10.1007/s11130-017-0605-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The aim of this study is to investigate the simultaneous effect of pomegranate juice on components of the metabolic syndrome, including high sensitive C-reactive protein (hs-CRP) as an inflammatory index and glycemic and lipid profile indices in patients with metabolic syndrome. In a double- blind 2*2 crossover study, 30 individuals suffering from metabolic syndrome received a daily dose of 500 mL pomegranate juice for a period of one week. After one week of wash out period, they received a placebo for one week. Lipid profile, blood glucose control indices including fasting blood glucose, fasting insulin, homeostatic model assessment of insulin resistance (HOMA-IR), systolic and diastolic blood pressure, and hs-CRP were measured at the beginning and end of the study. To analyze the data, a repeated measure analysis of variance and a t-test were performed. The results indicated that in comparison to the placebo, pomegranate juice was more effective in reducing the systolic and diastolic blood pressure (p = 0.00) and hs-CRP (p = 0.018). The level of triglyceride (p = 0.030) and very low-density lipoproteins cholesterol (VLDL-C) (p = 0.014) were increased after the consumption of pomegranate juice, as opposed to the baseline condition. The rest of lipid profile, fasting blood glucose (FBS), insulin, and HOMA-IR of the participants did not show any significant difference. Natural pomegranate juice supplementation lowered the level of systolic and diastolic blood pressure in patients with metabolic syndrome as well as their blood hs-CRP. However, it also increased their triglyceride and VLDL-C.
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Affiliation(s)
- Hossein Moazzen
- Student Research Committee, Urmia University of Medical Sciences, Serow Highway, Nazloo, PO Box: 5756115111, Urmia, Iran
| | - Mohammad Alizadeh
- Department of Nutrition, Food and Beverages Safety Research Center, Faculty of Medicine, Urmia University of Medical Sciences, Serow Highway, Nazloo, PO Box: 5756115111, Urmia, Iran.
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47
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Crum EM, Che Muhamed AM, Barnes M, Stannard SR. The effect of acute pomegranate extract supplementation on oxygen uptake in highly-trained cyclists during high-intensity exercise in a high altitude environment. J Int Soc Sports Nutr 2017; 14:14. [PMID: 28572749 PMCID: PMC5452353 DOI: 10.1186/s12970-017-0172-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/26/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Recent research has indicated that pomegranate extract (POMx) may improve performance during aerobic exercise by enhancing the matching of vascular oxygen (O2) provision to muscular requirements. POMx is rich in ellagitannin polyphenols and nitrates (NO3-), which are both associated with improvements in blood flow and O2 delivery. Primarily, this study aimed to determine whether POMx improves performance in a cycling time trial to exhaustion at 100%VO2max (TTE100%) in highly-trained cyclists. In addition, we investigated if the O2 cost (VO2) of submaximal exercise was lower with POMx, and whether any changes were greater at high altitude where O2 delivery is impaired. METHODS Eight cyclists exercised at three submaximal intensities before completing a TTE100% at sea-level (SEA) and at 1657 m of altitude (ALT), with pre-exercise consumption of 1000 mg of POMx or a placebo (PLAC) in a randomized, double-blind, crossover design. Data were analysed using a three way (treatment x altitude x intensity) or two-way (treatment x altitude) repeated measures ANOVA with a Fisher's LSD post-hoc analysis. Significance was set at p ≤ 0.05. The effect size of significant interactions was calculated using Cohen's d. RESULTS TTE100% performance was reduced in ALT but was not influenced by POMx (p > 0.05). Plasma NO3- were 10.3 μmol greater with POMx vs. PLAC (95% CI, 0.8, 19.7,F1,7 = 7.83, p < 0.04). VO2 measured at five minutes into the TTE100% was significantly increased in ALTPOMx vs. ALTPLAC (+3.8 ml.min-1kg-1, 95% CI, -5.7, 9.5, F1,7 = 29.2, p = 0.001, ES = 0.6) but unchanged in SEAPOMx vs. SEAPLAC (p > 0.05). Submaximal VO2 values were not affected by POMx (p ≥ 0.05). CONCLUSIONS The restoration of SEA VO2 values at ALT is likely driven by the high polyphenol content of POMx, which is proposed to improve nitric oxide bioavailability. Despite an increase in VO2, no change in exercise performance occurred and therefore this study does not support the use of POMx as an ergogenic supplement.
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Affiliation(s)
- Emma May Crum
- School of Sport and Exercise, Massey University (New Zealand), Palmerston North, New Zealand
| | | | - Matthew Barnes
- School of Sport and Exercise, Massey University (New Zealand), Palmerston North, New Zealand
| | - Stephen Robert Stannard
- School of Sport and Exercise, Massey University (New Zealand), Palmerston North, New Zealand
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48
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Delgado NTB, Rouver WDN, Freitas-Lima LC, de Paula TDC, Duarte A, Silva JF, Lemos VS, Santos AMC, Mauad H, Santos RL, Moysés MR. Pomegranate Extract Enhances Endothelium-Dependent Coronary Relaxation in Isolated Perfused Hearts from Spontaneously Hypertensive Ovariectomized Rats. Front Pharmacol 2017; 7:522. [PMID: 28101057 PMCID: PMC5209391 DOI: 10.3389/fphar.2016.00522] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 12/15/2016] [Indexed: 12/31/2022] Open
Abstract
Decline in estrogen levels promotes endothelial dysfunction and, consequently, the most prevalent cardiovascular diseases in menopausal women. The use of natural therapies such as pomegranate can change these results. Pomegranate [Punica granatum L. (Punicaceae)] is widely used as a phytotherapeutic agent worldwide, including in Brazil. We hypothesized that treatment with pomegranate hydroalcoholic extract (PHE) would improve coronary vascular reactivity and cardiovascular parameters. At the beginning of treatment, spontaneously hypertensive female rats were divided into Sham and ovariectomized (OVX) groups, which received pomegranate extract (PHE) (250 mg/kg) or filtered water (V) for 30 days by gavage. Systolic blood pressure was measured by tail plethysmography. After euthanasia, the heart was removed and coronary vascular reactivity was assessed by Langendorff retrograde perfusion technique. A dose-response curve for bradykinin was performed, followed by L-NAME inhibition. The protein expression of p-eNOS Ser1177, p-eNOS Thr495, total eNOS, p-AKT Ser473, total AKT, SOD-2, and catalase was quantified by Western blotting. The detection of coronary superoxide was performed using the protocol of dihydroethidium (DHE) staining Plasma nitrite measurement was analyzed by Griess method. Systolic blood pressure increased in both Sham-V and OVX-V groups, whereas it was reduced after treatment in Sham-PHE and OVX-PHE groups. The baseline coronary perfusion pressure was reduced in the Sham-PHE group. The relaxation was significantly higher in the treated group, and L-NAME attenuated the relaxation in all groups. The treatment has not changed p-eNOS (Ser1177), total eNOS, p-AKT (Ser473) and total AKT in any groups. However, in Sham and OVX group the treatment reduced the p-eNOS (Thr495) and SOD-2. The ovariectomy promoted an increasing in the superoxide anion levels and the treatment was able to prevent this elevation and reducing oxidative stress. Moreover, the treatment prevented the decreasing in plasmatic nitrite. We observed a reduction in total cholesterol and LDL in the Sham-PHE group. The treatment with PHE enhances the endothelium-dependent coronary relaxation and improves cardiovascular parameters, which suggests a therapeutic role of PHE.
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Affiliation(s)
- Nathalie T B Delgado
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Wender do N Rouver
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Leandro C Freitas-Lima
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Tiago D-C de Paula
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo Ribeirão Preto, Brazil
| | - Andressa Duarte
- School of Medicine of Ribeirão Preto, University of São Paulo Ribeirão Preto, Brazil
| | - Josiane F Silva
- Department of Physiology and Biophysics, Federal University of Minas Gerais Belo Horizonte, Brazil
| | - Virgínia S Lemos
- Department of Physiology and Biophysics, Federal University of Minas Gerais Belo Horizonte, Brazil
| | - Alexandre M C Santos
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Helder Mauad
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Roger L Santos
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
| | - Margareth R Moysés
- Department of Physiological Sciences, Centre of Health Sciences, Federal University of Espirito Santo Vitoria, Brazil
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49
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Gur S, Rezk BM, Abd Elmageed ZY, Kadowitz PJ, Sikka SC, Hellstrom WJG. Characterisation of pomegranate juice effects on human corpus cavernosum. Andrologia 2016; 49. [PMID: 27785815 DOI: 10.1111/and.12712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2016] [Indexed: 01/26/2023] Open
Abstract
Pomegranate (POM) juice may benefit the erectile process, but the scientific evidence is lacking. This study evaluates the molecular characterisation and confirmation of POM's action on human corpus cavernosum (HCC) obtained from patients (n = 16) undergoing penile prosthesis implantation. After phenylephrine contraction, the relaxant effects of POM with various inhibitors in the presence and absence of palmitic acid (PA)-induced acute oxidative stress were investigated. Electrical field stimulation (EFS)- and acetylcholine (ACh)-induced relaxation were performed using organ bath preparation. Expression of neuronal nitric oxide synthase (nNOS), endothelial (eNOS), phosphodiesterase (PDE)-5A and cGMP levels were assessed in cells from ex vivo organ cultures of HCC, using RT-PCR, ELISA and immunohistochemistry techniques. POM induced marked relaxation of HCC (maximum response: 97.0 ± 3.1%) and reversed the PA-induced decrease of EFS (20 Hz). nNOS transcription was increased by 7-fold in POM-treated cells without influencing eNOS and PDE5A expressions. We conclude that POM induced marked relaxation of HCC via: (i) nNOS stimulation, and (ii) downstream relaxation stimulated by nNOS and cGMP and bypassing the NO and PDE5. This action provides a rationale for the therapeutic or preventative use of POM in men with erectile dysfunction who do not respond well to PDE5 inhibitors.
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Affiliation(s)
- S Gur
- Department of Pharmacology, School of Pharmacy, Ankara University, Ankara, Turkey.,Departments of Urology and Pharmacology, Tulane University Health Sciences Center, New Orleans, LA, USA
| | - B M Rezk
- Biology Units, Southern University at New Orleans, New Orleans, LA, USA
| | - Z Y Abd Elmageed
- Departments of Urology and Pharmacology, Tulane University Health Sciences Center, New Orleans, LA, USA
| | - P J Kadowitz
- Departments of Urology and Pharmacology, Tulane University Health Sciences Center, New Orleans, LA, USA
| | - S C Sikka
- Departments of Urology and Pharmacology, Tulane University Health Sciences Center, New Orleans, LA, USA
| | - W J G Hellstrom
- Departments of Urology and Pharmacology, Tulane University Health Sciences Center, New Orleans, LA, USA
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50
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Sahebkar A, Gurban C, Serban A, Andrica F, Serban MC. Effects of supplementation with pomegranate juice on plasma C-reactive protein concentrations: A systematic review and meta-analysis of randomized controlled trials. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:1095-1102. [PMID: 26922037 DOI: 10.1016/j.phymed.2015.12.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 12/05/2015] [Accepted: 12/08/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Pomegranate juice (PJ) has a high content of antioxidants and bioactive polyphenols, being widely used for its antioxidant, anti-inflammatory and chemopreventive effects. PURPOSE The objective of this meta-analysis consisted in investigating the impact of PJ on plasma C-reactive protein (CRP) concentrations. METHODS The search included SCOPUS, Medline and two Iranian bibliographic databases namely MagIran and Scientific Information Database (from inception to December 09, 2014) to identify prospective trials for investigating the impact of pomegranate preparations on serum concentrations of CRP. Two independent reviewers extracted data on study characteristics, methods and outcomes. RESULTS Among 427 participants in the selected studies, 216 were allocated to PJ groups, and 211 to control group. Meta-analysis of data from 5 eligible randomized controlled trials (RCTs) arms did not provide compelling evidence as to a significant CRP-lowering effect of supplementation with pomegranate juice (WMD: -0.22 mg/l, 95% CI: -0.45, 0.01, p = 0.061). The impact of pomegranate juice on plasma CRP levels was found to be independent of duration of supplementation (slope: 0.003; 95% CI: -0.005, 0.011; p = 0.444). CONCLUSION In conclusion, this meta-analysis of data from 5 prospective trials did not indicate a significant effect of PJ on plasma CRP levels, and this effect was independent of duration of supplementation.
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Affiliation(s)
- Amirhossein Sahebkar
- Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Metabolic Research Centre, Royal Perth Hospital, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia
| | - Camelia Gurban
- Department of Biochemistry and Pharmacology, Discipline of Biochemistry, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.
| | - Alexandru Serban
- Department Automation and Applied Informatics, University Politehnica Timisoara, Romania
| | - Florina Andrica
- Faculty of Pharmacy, Discipline of Pharmaceutical Chemistry, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
| | - Maria-Corina Serban
- Department of Epidemiology, University of Alabama at Birmingham, Birmingham, AL, USA; Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania
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