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Alkhatib B, Agraib LM, Al-Dalaeen A, Al-Shami I. Are There Any Correlations between Vitamin D, Calcium, and Magnesium Intake and Coronary and Obesity Indices? JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2024; 43:12-19. [PMID: 37159492 DOI: 10.1080/27697061.2023.2203225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 04/11/2023] [Indexed: 05/11/2023]
Abstract
OBJECTIVE The association between nutrient intake and obesity and coronary problems has received great attention. So, this study aimed to examine the association between vitamin D, calcium, and magnesium intake and obesity and coronary indices. METHODS A total of 491 male and female university employees (18-64 years) were randomly included in a cross-sectional study. Blood samples were drawn, and the lipid profile was analyzed. Different anthropometrics were measured. Obesity and coronary indices were calculated based on standard formulas. A 24-h recall was used to measure the average dietary intake of vitamin D, calcium, and magnesium. RESULTS For the total sample, vitamin D had a significantly weak correlation with the abdominal volume index (AVI) and weight-adjusted waist index (WWI). However, calcium intake had a significant moderate correlation with the AVI and a weak correlation with the conicity index (CI), body roundness index (BRI), body adiposity index (BAI), WWI, lipid accumulation product (LAP), and atherogenic index of plasma (AIP). In males, there was a significant weak correlation between calcium and magnesium intake and the CI, BAI, AVI, WWI, and BRI. Additionally, magnesium intake had a weak correlation with the LAP. In female participants, calcium and magnesium intake had a weak correlation with CI, BAI, AIP, and WWI. Additionally, calcium intake showed a moderate correlation with the AVI and BRI and a weak correlation with the LAP. CONCLUSION Magnesium intake had the greatest impact on coronary indices. Calcium intake had the greatest impact on obesity indices. Vitamin D intake had minimal effects on obesity and coronary indices.
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Affiliation(s)
- Buthaina Alkhatib
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Science, The Hashemite University, Zarqa, Jordan
| | - Lana M Agraib
- Department of Food Science and Nutrition, Faculty of Agriculture, Jerash University, Jerash, Jordan
| | - Anfal Al-Dalaeen
- Department of Clinical Nutrition and Dietetics, Faculty of Allied Medical Sciences, Applied Science Private University, Amman, Jordan
| | - Islam Al-Shami
- Department of Clinical Nutrition and Dietetics, Faculty of Applied Medical Science, The Hashemite University, Zarqa, Jordan
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Abualrahi AM, Alhanabi FH, Alalloush RS, Alsalman ZH, Albaker WI, AlSheikh MH, Almuzain FA, Al-Hariri MT. Assessment of dietary magnesium intake in the Eastern Province of Saudi Arabia. J Med Life 2023; 16:1789-1795. [PMID: 38585527 PMCID: PMC10994627 DOI: 10.25122/jml-2023-0279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 11/15/2023] [Indexed: 04/09/2024] Open
Abstract
Magnesium is an essential element and the most abundant intracellular cation after potassium. This cross-sectional study assessed the average dietary magnesium intake among residents of the Eastern Province of Saudi Arabia. Data was collected using a self-reported validated electronic questionnaire between April 2022 and July 2023. The first part of the survey included demographic data, and the second section comprised 33 items, including a semi-quantitative tool specifically designed to evaluate magnesium intake over the last three months. We included 1065 participants, out of whom 61.1% were women. The predominant age group was 19 - 26 years (56.9%), and most participants (83.3%) reported no comorbidities. The majority (48.5%) had normal weight, 246 (23%) were overweight, and 193 (18.1%) were obese. Most participants had low dietary magnesium intake, ranging from one to five times monthly. There was a positive correlation between age and dietary magnesium consumption. The study highlights a concerning trend of low magnesium intake, representing a risk for various chronic diseases. This trend could be linked to increased consumption of typical diets low in magnesium, such as those high in refined sugars, flour, and processed foods, prevalent among the younger Saudi population.
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Affiliation(s)
- Ali Mohsen Abualrahi
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | | | | | - Waleed Ibrahim Albaker
- Department of Internal Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Mona Hmoud AlSheikh
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Mohammed Taha Al-Hariri
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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Liu RJ, Li SY, Xu ZP, Yu JJ, Mao WP, Sun C, Xu B, Chen M. Dietary metal intake and the prevalence of erectile dysfunction in US men: Results from National Health and Nutrition Examination Survey 2001-2004. Front Nutr 2022; 9:974443. [PMID: 36407550 PMCID: PMC9668876 DOI: 10.3389/fnut.2022.974443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/20/2022] [Indexed: 08/30/2023] Open
Abstract
BACKGROUND Erectile dysfunction (ED) mainly affects men over 40 years of age and is a common clinical condition. In addition to hypertension and diabetes, environment, and lifestyle are also significantly associated with erectile dysfunction. The relationship between dietary trace metal intake and ED has not been studied. MATERIALS AND METHODS Data on participants were obtained from the National Health and Nutrition Examination Survey for this study, and those with incomplete information on clinical variables were excluded. Dose-response curve analysis was used to investigate the relationship between dietary trace metal intake and ED prevalence. Multivariate logistic regression analysis was used to adjust for confounders to further investigate the relationship between dietary trace metal intake and ED prevalence. 1:1 propensity score matching (PSM) was performed to adjust for differences between clinical variables for data reanalysis to confirm the reliability of the results. RESULTS A total of 3,745 individuals were included in the study, including 1096 ED patients and 2,649 participants without ED. Dietary intake of trace metals (Mg, Zn, Cu, and Se) was significantly higher in participants without ED than in ED patients (all P < 0.001). Dose-response curve analysis showed a significant negative association between these dietary metal intakes and ED prevalence (all P < 0.001). Multivariate logistic regression analysis adjusted for confounders (age, education, BMI, annual household income, hypertension, diabetes, marital status, race, and current health status) revealed that increased dietary metal intake reduced the odds ratio of ED. 1:1 PSM reanalysis further confirmed the validity of the results. CONCLUSION Increasing dietary intake of trace metals (magnesium, zinc, copper, and selenium) within the upper limit is beneficial in reducing the prevalence of ED.
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Affiliation(s)
- Rui-Ji Liu
- Department of Urology, People’s Hospital of Putuo District, Shanghai, China
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Shu-Ying Li
- Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, Cancer Hospital Affiliate to School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhi-Peng Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Jun-Jie Yu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Wei-Pu Mao
- Department of Urology, People’s Hospital of Putuo District, Shanghai, China
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Chao Sun
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Bin Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
| | - Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
- Surgical Research Center, Institute of Urology, Southeast University Medical School, Nanjing, China
- Nanjing Lishui District People’s Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, China
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The Effect of Magnesium Supplementation on Endothelial Function: A Randomised Cross-Over Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18158169. [PMID: 34360460 PMCID: PMC8346147 DOI: 10.3390/ijerph18158169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/26/2021] [Accepted: 07/28/2021] [Indexed: 11/17/2022]
Abstract
Evidence supports an association between low magnesium (Mg) intake and coronary heart disease and between Mg intake and endothelial function. The aim of this study was to assess the effect of one week of Mg supplementation on endothelial function, assessed by flow mediated dilatation (FMD). Nineteen healthy men and women completed this cross-over pilot study in which participants were randomised to take an over-the-counter magnesium supplement for one week or to follow their usual diet. Weight, FMD and blood pressure (BP) were taken on completion of each intervention and 24 h urine collections and blood samples were taken to assess compliance. Baseline serum Mg was within normal range for all participants. Urinary Mg and urinary magnesium-creatinine ratio (Mg/Cr) significantly increased between interventions, (p = 0.03, p = 0.005, respectively). No significant differences in FMD or BP were found between the interventions. A significant negative correlation was seen between age and FMD (r = −0.496, p = 0.031). When adjusted for age, saturated fat was negatively associated with FMD (p = 0.045). One week of Mg supplementation did not improve FMD in a healthy population.
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Quantitative Association Between Serum/Dietary Magnesium and Cardiovascular Disease/Coronary Heart Disease Risk: A Dose-Response Meta-analysis of Prospective Cohort Studies. J Cardiovasc Pharmacol 2020; 74:516-527. [PMID: 31815866 DOI: 10.1097/fjc.0000000000000739] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND The quantitative association between serum/dietary magnesium and cardiovascular disease (CVD) remains unclear. We conducted a dose-response meta-analysis to evaluate the quantitative association between serum/dietary magnesium and CVD, including coronary heart disease (CHD). METHODS PubMed, China National Knowledge Infrastructure, and Web of Science were searched for publications. STATA 12.0 was used to analyze data. We used the random-effects model to reduce heterogeneity. RESULTS Eighteen prospective cohort studies with 544,581 participants and 22,658 CVD cases were included. The follow-up duration was 1-28 years. The pooled relative risk (RR) of CVD for the relatively normal versus lowest serum and dietary magnesium level was 0.64 {[95% confidence interval (CI): 0.51-0.80] and 0.90 [95% CI: 0.84-0.96]}. The pooled RR of CHD for the relatively normal versus lowest serum and dietary magnesium level was 0.70 (95% CI: 0.57-0.85) and 0.86 (95% CI: 0.77-0.94). We noted a significant association between increasing serum magnesium levels (per 0.1-mg/dL increase) and risk of CVD (RR: 0.93, 95% CI: 0.88-0.97) and CHD (RR: 0.90, 95% CI: 0.84-0.96) and between dietary magnesium levels (per 100-mg/d increase) and risk of CVD (RR: 0.90, 95% CI: 0.83-0.96) and CHD (RR: 0.92, 95% CI: 0.82-0.98). Serum/dietary Mg level comparisons presented a 7%-10% decrease in CVD/CHD risk. The dose-response meta-analyses showed linear relationships between serum magnesium and CVD (Pnonlinearity = 0.833) or CHD (Pnonlinearity = 0.193) and dietary magnesium and CVD (Pnonlinearity = 0.463) or CHD (Pnonlinearity = 0.440). CONCLUSIONS Increasing dietary magnesium or serum magnesium level is linearly and inversely associated with the risk of total CVD and CHD events.
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Chen W, Eisenberg R, Mowrey WB, Wylie-Rosett J, Abramowitz MK, Bushinsky DA, Melamed ML. Association between dietary zinc intake and abdominal aortic calcification in US adults. Nephrol Dial Transplant 2020; 35:1171-1178. [PMID: 31298287 PMCID: PMC7417001 DOI: 10.1093/ndt/gfz134] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 05/27/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND In animal studies, zinc supplementation inhibited phosphate-induced arterial calcification. We tested the hypothesis that higher intake of dietary zinc was associated with lower abdominal aortic calcification (AAC) among adults in the USA. We also explored the associations of AAC with supplemental zinc intake, total zinc intake and serum zinc level. METHODS We performed cross-sectional analyses of 2535 participants from the National Health and Nutrition Examination Survey 2013-14. Dietary and supplemental zinc intakes were obtained from two 24-h dietary recall interviews. Total zinc intake was the sum of dietary and supplemental zinc. AAC was measured using dual-energy X-ray absorptiometry in adults ≥40 years of age and quantified using the Kauppila score system. AAC scores were categorized into three groups: no AAC (AAC = 0, reference group), mild-moderate (AAC >0-≤6) and severe AAC (AAC >6). RESULTS Dietary zinc intake (mean ± SE) was 10.5 ± 0.1 mg/day; 28% had AAC (20% mild-moderate and 8% severe), 17% had diabetes mellitus and 51% had hypertension. Higher intake of dietary zinc was associated with lower odds of having severe AAC. Per 1 mg/day higher intake of dietary zinc, the odds of having severe AAC were 8% lower [adjusted odds ratio 0.92 (95% confidence interval 0.86-0.98), P = 0.01] compared with those without AAC, after adjusting for demographics, comorbidities and laboratory measurements. Supplemental zinc intake, total zinc intake and serum zinc level were not associated with AAC. CONCLUSIONS Higher intake of dietary zinc was independently associated with lower odds of having severe AAC among noninstitutionalized US adults.
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Affiliation(s)
- Wei Chen
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Ruth Eisenberg
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Wenzhu B Mowrey
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Judith Wylie-Rosett
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
- Division of Health Promotion and Nutrition Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | | | - David A Bushinsky
- Department of Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Michal L Melamed
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
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El‐Sayed SM, Salama HH, El‐Sayed MM. Function processed cheese sauce fortified with peanut butter. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14656] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
| | - Heba H. Salama
- Dairy Science Department National Research Centre Giza Egypt
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Yang AM, Lo K, Zheng TZ, Yang JL, Bai YN, Feng YQ, Cheng N, Liu SM. Environmental heavy metals and cardiovascular diseases: Status and future direction. Chronic Dis Transl Med 2020; 6:251-259. [PMID: 33336170 PMCID: PMC7729107 DOI: 10.1016/j.cdtm.2020.02.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Indexed: 12/19/2022] Open
Abstract
Cardiovascular disease (CVD) and environmental degradation are leading global health problems of our time. Recent studies have linked exposure to heavy metals to the risks of CVD and diabetes, particularly in populations from low- and middle-income countries, where concomitant rapid development occurs. In this review, we 1) assessed the totality, quantity, and consistency of the available epidemiological studies, linking heavy metal exposures to the risk of CVD (including stroke and coronary heart disease); 2) discussed the potential biological mechanisms underlying some tantalizing observations in humans; and 3) identified gaps in our knowledge base that must be investigated in future work. An accumulating body of evidence from both experimental and observational studies implicates exposure to heavy metals, in a dose-response manner, in the increased risk of CVD. The limitations of most existing studies include insufficient statistical power, lack of comprehensive assessment of exposure, and cross-sectional design. Given the widespread exposure to heavy metals, an urgent need has emerged to investigate these putative associations of environmental exposures, either independently or jointly, with incident CVD outcomes prospectively in well-characterized cohorts of diverse populations, and to determine potential strategies to prevent and control the impacts of heavy metal exposure on the cardiometabolic health outcomes of individuals and populations.
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Affiliation(s)
- Ai-Min Yang
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong SAR, China.,Centre for Global Cardiometabolic Health, Department of Epidemiology, Surgery, and Medicine, Brown University, Providence, RI 02903, USA.,Department of Epidemiology, School of Public Health, Brown University, Providence, RI 02903, USA
| | - Kenneth Lo
- Centre for Global Cardiometabolic Health, Department of Epidemiology, Surgery, and Medicine, Brown University, Providence, RI 02903, USA.,Department of Epidemiology, School of Public Health, Brown University, Providence, RI 02903, USA
| | - Tong-Zhang Zheng
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI 02903, USA
| | - Jing-Li Yang
- Department of Epidemiology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ya-Na Bai
- Department of Epidemiology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ying-Qing Feng
- Department of Cardiology and Endocrinology, Guangdong Provincial People's Hospital, Guandong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
| | - Ning Cheng
- Department of Epidemiology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Si-Min Liu
- Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong SAR, China.,Centre for Global Cardiometabolic Health, Department of Epidemiology, Surgery, and Medicine, Brown University, Providence, RI 02903, USA
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Martínez Medina JJ, Rodríguez J, Mermot J, Naso LG. Antitumour and Antimetastatic Effects and Safety Profile of a New Magnesium(II)-Chrysin Complex. Aust J Chem 2020. [DOI: 10.1071/ch19333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chrysin is a flavone found in many plant extracts including blue passion flower, propolis and honey. The magnesium(ii) cation is an essential metal for life and it is involved in a variety of metabolic and physiological functions. Biological activities of flavonoids can be improved by complexation with metals. For this reason, Mgchrys was synthesised. The complex was characterised by spectroscopic techniques (ultraviolet–visible absorption spectroscopy (UV-Vis), Fourier-transform infrared spectroscopy (FTIR), 1H and 13C-NMR) and elemental and thermogravimetric analysis. The results indicated that chrysin reacts with magnesium(ii) through a 4-carbonyl-5-hydroxy chelation site. The computational study suggests the coexistence of at least twelve conformers of Mgchrys at room temperature. There are six most stable conformers that show square-pyramidal and distorted square-pyramidal geometries. In addition, anticancer and antimetastatic activities of Mgchrys on the A549 cell line were evaluated and compared with the metal and the free ligand. The complex did not show cytotoxicity against normal lung fibroblasts but it behaved as a cytotoxic drug against the cancer cell line with oxidative stress being its probable mechanism of action. However, Mgchrys inhibited the different steps involved in the metastatic cascade: adhesion to fibronectin, migration and invasion. The compounds displayed no acute toxicity (Artemia salina test) and no mutagenic effect (Ames test).
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Fowke JH, Koyama T, Dai Q, Zheng SL, Xu J, Howard LE, Freedland SJ. Blood and dietary magnesium levels are not linked with lower prostate cancer risk in black or white men. Cancer Lett 2019; 449:99-105. [PMID: 30776477 DOI: 10.1016/j.canlet.2019.02.023] [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] [Received: 09/13/2018] [Revised: 01/18/2019] [Accepted: 02/11/2019] [Indexed: 12/15/2022]
Abstract
Recent studies suggest a diet low in dietary magnesium intake or lower blood magnesium levels is linked with increased prostate cancer risk. This study investigates the race-specific link between blood magnesium and calcium levels, or dietary magnesium intake, and the diagnosis of low-grade and high-grade prostate cancer. The study included 637 prostate cancer cases and 715 biopsy-negative controls (50% black) recruited from Nashville, TN or Durham, NC. Blood was collected at the time of recruitment, and dietary intake was assessed by food frequency questionnaire. Percent genetic African ancestry was determined as a compliment to self-reported race. Blood magnesium levels and dietary magnesium intake were significantly lower in black compared to white men. However, magnesium levels or intake were not associated with risk of total prostate cancer or aggressive prostate cancer. Indeed, a higher calcium-to-magnesium diet intake was significantly protective for high-grade prostate cancer in black (OR = 0.66 (0.45, 0.96), p = 0.03) but not white (OR = 1.00 (0.79, 1.26), p = 0.99) men. In summary, there was a statistically significant difference in magnesium intake between black and white men, but the biological impact was unclear, and we did not confirm a lower prostate cancer risk associated with magnesium levels.
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Affiliation(s)
- Jay H Fowke
- Department of Preventive Medicine, University of Tennessee Health Science Center, TN, USA.
| | - Tatsuki Koyama
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - Qi Dai
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
| | - S Lilly Zheng
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, IL, USA.
| | - Jianfeng Xu
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, IL, USA.
| | - Lauren E Howard
- Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC, USA; Surgery Section, Durham VA Medical Center, Durham, NC, USA.
| | - Stephen J Freedland
- Surgery Section, Durham VA Medical Center, Durham, NC, USA; Department of Surgery, Division of Urology, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
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Oral magnesium supplementation improves endothelial function and attenuates subclinical atherosclerosis in thiazide-treated hypertensive women. J Hypertens 2017; 35:89-97. [PMID: 27759579 DOI: 10.1097/hjh.0000000000001129] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Epidemiological studies demonstrate an inverse association between serum magnesium and incidence of cardiovascular disease. Diuretics commonly cause hypomagneseamia. METHOD We evaluated effects of magnesium supplementation on blood pressure (BP) and vascular function in thiazide-treated hypertensive women in a randomized, double-blind, clinical trial. Hypertensive women (40-65 years) on hydrochlorothiazide and mean 24-h BP at least 130/80 mmHg were divided into placebo and supplementation (magnesium chelate 600 mg/day) groups. Patients were evaluated for nutritional and biochemical parameters, office and ambulatory blood pressure monitoring, brachial flow-mediated dilatation (FMD), peripheral arterial tonometry, assessment of carotid intima-media thickness, central hemodynamic parameters and pulse wave velocity at inclusion and after 6-month follow-up. RESULTS The magnesium group had a significant reduction in SBP (144 ± 17 vs. 134 ± 14 mmHg, P = 0.036) and DBP (88 ± 9 vs. 81 ± 8 mmHg, P = 0.005) at 6 months, without effect on plasma glucose, lipids, or arterial stiffness parameters. The placebo group showed a significant increase in carotid intima-media thickness (0.78 ± 0.13 vs. 0.89 ± 0.14 mm, P = 0.033) without change in the magnesium group (0.79 ± 0.16 vs. 0.79 ± 0.19 mm, P = 0.716) after 6 months. The magnesium group demonstrated a significant increase in variation of FMD vs. the placebo group (+3.7 ± 2.1 vs. 2.4 ± 1.2%, P = 0.015). There was a significant correlation between the intracellular magnesium variation and FMD (r = 0.44, P = 0.011). CONCLUSION Magnesium supplementation was associated with better BP control, improved endothelial function and amelioration of subclinical atherosclerosis in these thiazide-treated hypertensive women.
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Wu J, Xun P, Tang Q, Cai W, He K. Circulating magnesium levels and incidence of coronary heart diseases, hypertension, and type 2 diabetes mellitus: a meta-analysis of prospective cohort studies. Nutr J 2017; 16:60. [PMID: 28927411 PMCID: PMC5606028 DOI: 10.1186/s12937-017-0280-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 07/24/2017] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Data on the associations between circulating magnesium (Mg) levels and incidence of coronary heart diseases (CHD), hypertension, and type 2 diabetes mellitus (T2DM) are inconsistent and inconclusive. The aim of this study was to examine circulating Mg levels in relation to incidence of CHD, hypertension, and T2DM. METHODS Prospective cohort studies published before May 2017 were searched through PubMed, EmBase, SCOPUS, and Google Scholar. A total of 11 studies that reported multivariable-adjusted associations of interest were identified. Information on the characteristics of study and participants, exposure, main outcomes, risk estimates, and cofounders was extracted and analyzed. RESULTS Of the 11 included studies, 5 reported results on CHD (38,808 individuals [4437 cases] with an average 10.5-year follow-up), 3 on hypertension (14,876 participants [3149 cases] with a 6.7-year follow-up), and 4 on T2DM (31,284 participants [2680 cases] with an 8.8-year follow-up). Comparing the highest to the lowest category of circulating Mg concentration, the pooled relative risks [RRs] (95% confidence intervals [CIs]) were 0.86 (0.74, 0.996), 0.91 (0.80, 1.02), and 0.64 (0.50, 0.81) for incidence of CHD, hypertension, and T2DM, respectively. Every 0.1 mmol/L increment in circulating Mg levels was associated with 4% (RR, 0.96; 95% CI: 0.94, 0.99) reduction in hypertension incidence. No significant linear association was found between circulating Mg levels and incidence of CHD (RR, 0.89; 95% CI: 0.77, 1.03) and T2DM (RR, 0.90; 95% CI: 0.81, 1.002). The observed associations of interest were sensitive to exclusion of individual studies. CONCLUSIONS Findings in this meta-analysis suggest that circulating Mg levels are inversely associated with incidence of CHD, hypertension, and T2DM. Additional studies are needed to provide more solid evidence and identify the optimal range of circulating Mg concentration with respect to primary prevention of CHD, hypertension, and T2DM.
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Affiliation(s)
- Jiang Wu
- Department of Clinical Nutrition, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, No. 1665, Kongjiang Rd, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China.,Shanghai Institute for Pediatric Research, Shanghai, China
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, 1025 E. Seventh Street, C042, Bloomington, Indiana, 47405, USA
| | - Qingya Tang
- Department of Clinical Nutrition, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, No. 1665, Kongjiang Rd, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China.,Shanghai Institute for Pediatric Research, Shanghai, China
| | - Wei Cai
- Department of Clinical Nutrition, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, No. 1665, Kongjiang Rd, Shanghai, China. .,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China. .,Shanghai Institute for Pediatric Research, Shanghai, China. .,Department of Pediatric Surgery, Xin Hua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Ka He
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, 1025 E. Seventh Street, C042, Bloomington, Indiana, 47405, USA.
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Kokubo Y, Saito I, Iso H, Yamagishi K, Yatsuya H, Ishihara J, Maruyama K, Inoue M, Sawada N, Tsugane S. Dietary magnesium intake and risk of incident coronary heart disease in men: A prospective cohort study. Clin Nutr 2017; 37:1602-1608. [PMID: 28843443 DOI: 10.1016/j.clnu.2017.08.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/04/2017] [Accepted: 08/07/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND & AIMS The associations between dietary magnesium intake and stroke and coronary heart disease (CHD) incidences are inconsistent and not established in Asian. We aimed to determine the association between dietary magnesium intake and the risk of stroke and CHD in a Japanese population. SUBJECTS/METHODS We studied 85,293 Japanese subjects by questionnaire at baseline (age 45-74 years, without cardiovascular disease or cancer in 1995 and 1998 for Cohorts I and II, respectively). The participants were followed until the end of 2009 and 2010 in Cohorts I and II, respectively. Dietary magnesium intake was estimated from a self-administered 138-item food-frequency questionnaire. RESULTS After 1,305,738 person-years of follow-up, 4110 strokes and 1283 cases of CHD were documented. The multivariable-adjusted hazard ratios (HRs, 95% confidence intervals, 95%CIs) of CHD for the fourth and fifth quintiles of dietary magnesium intake were 0.70 (0.50-0.99) and 0.66 (0.44-0.97) in men (P for trend = 0.036), respectively, and third quintile of dietary magnesium intake was 0.61 (0.39-0.96) in women (P for trend = 0.241), compared with the lowest quintile in men and women. We observed no decreased risks of incident stroke in men or women with higher dietary magnesium intakes. CONCLUSIONS Higher dietary magnesium intake was associated with a reduced risk of CHD in Japanese men.
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Affiliation(s)
- Yoshihiro Kokubo
- Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Suita, Japan.
| | - Isao Saito
- Department of Public Health, Ehime University Graduate School of Medicine, Toon, Japan
| | - Hiroyasu Iso
- Department of Public Health, Social Department of Social and Environmental Medicine, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kazumasa Yamagishi
- Department of Public Health Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiroshi Yatsuya
- Department of Public Health, School of Medicine, Fujita Health University, Nagoya, Japan
| | - Junko Ishihara
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan; Department of Food and Life Science, School of Life and Environmental Science, Azabu University, Sagamihara City, Japan
| | - Koutatsu Maruyama
- Department of Public Health, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Manami Inoue
- Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan; Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Norie Sawada
- Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
| | - Shoichiro Tsugane
- Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
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Fang X, Wang K, Han D, He X, Wei J, Zhao L, Imam MU, Ping Z, Li Y, Xu Y, Min J, Wang F. Dietary magnesium intake and the risk of cardiovascular disease, type 2 diabetes, and all-cause mortality: a dose-response meta-analysis of prospective cohort studies. BMC Med 2016; 14:210. [PMID: 27927203 PMCID: PMC5143460 DOI: 10.1186/s12916-016-0742-z] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 11/09/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Although studies have examined the association between dietary magnesium intake and health outcome, the results are inconclusive. Here, we conducted a dose-response meta-analysis of prospective cohort studies in order to investigate the correlation between magnesium intake and the risk of cardiovascular disease (CVD), type 2 diabetes (T2D), and all-cause mortality. METHODS PubMed, EMBASE, and Web of Science were searched for articles that contained risk estimates for the outcomes of interest and were published through May 31, 2016. The pooled results were analyzed using a random-effects model. RESULTS Forty prospective cohort studies totaling more than 1 million participants were included in the analysis. During the follow-up periods (ranging from 4 to 30 years), 7678 cases of CVD, 6845 cases of coronary heart disease (CHD), 701 cases of heart failure, 14,755 cases of stroke, 26,299 cases of T2D, and 10,983 deaths were reported. No significant association was observed between increasing dietary magnesium intake (per 100 mg/day increment) and the risk of total CVD (RR: 0.99; 95% CI, 0.88-1.10) or CHD (RR: 0.92; 95% CI, 0.85-1.01). However, the same incremental increase in magnesium intake was associated with a 22% reduction in the risk of heart failure (RR: 0.78; 95% CI, 0.69-0.89) and a 7% reduction in the risk of stroke (RR: 0.93; 95% CI, 0.89-0.97). Moreover, the summary relative risks of T2D and mortality per 100 mg/day increment in magnesium intake were 0.81 (95% CI, 0.77-0.86) and 0.90 (95% CI, 0.81-0.99), respectively. CONCLUSIONS Increasing dietary magnesium intake is associated with a reduced risk of stroke, heart failure, diabetes, and all-cause mortality, but not CHD or total CVD. These findings support the notion that increasing dietary magnesium might provide health benefits.
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Affiliation(s)
- Xuexian Fang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Kai Wang
- The First Affiliated Hospital, Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Dan Han
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xuyan He
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiayu Wei
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lu Zhao
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mustapha Umar Imam
- Precision Nutrition Innovation Center, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Zhiguang Ping
- Precision Nutrition Innovation Center, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yusheng Li
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuming Xu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junxia Min
- The First Affiliated Hospital, Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fudi Wang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China. .,Precision Nutrition Innovation Center, College of Public Health, Zhengzhou University, Zhengzhou, China.
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16
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Fang X, Liang C, Li M, Montgomery S, Fall K, Aaseth J, Cao Y. Dose-response relationship between dietary magnesium intake and cardiovascular mortality: A systematic review and dose-based meta-regression analysis of prospective studies. J Trace Elem Med Biol 2016; 38:64-73. [PMID: 27053099 DOI: 10.1016/j.jtemb.2016.03.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 03/11/2016] [Accepted: 03/29/2016] [Indexed: 01/18/2023]
Abstract
BACKGROUND Although epidemiology studies have reported the relationship, including a dose-response relationship, between dietary magnesium intake and risk of cardiovascular disease (CVD), the risk for CVD mortality is inconclusive and the evidence for a dose-response relationship has not been summarized. OBJECTIVE We conducted a systematic review and meta-analysis of prospective studies to summarize the evidence regarding the association of dietary magnesium intake with risk of CVD mortality and describe their dose-response relationship. DESIGN We identified relevant studies by searching major scientific literature databases and grey literature resources from their inception to August 2015, and reviewed references lists of retrieved articles. We included population-based studies that reported mortality risks, i.e. relative risks (RRs), odds ratios (ORs) or hazard ratios (HRs) of CVD mortality or cause-specific CVD death. Linear dose-response relationships were assessed using random-effects meta-regression. Potential nonlinear associations were evaluated using restricted cubic splines. RESULTS Out of 3002 articles, 9 articles from 8 independent studies met the eligibility criteria. These studies comprised 449,748 individuals and 10,313 CVD deaths. Compared with the lowest dietary magnesium consumption group in the population, the risk of CVD mortality was reduced by 16% in women and 8% in men. No significant linear dose-response relationship was found between increment in dietary magnesium intake and CVD mortality across all the studies. After adjusting for age and BMI, the risk of CVD mortality was reduced by 24-25% per 100mg/d increment in dietary magnesium intake in women of all the participants and in all the US participants. CONCLUSION Although the combined data confirm the role of dietary magnesium intake in reducing CVD mortality, the dose-response relationship was only found among women and in US population.
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Affiliation(s)
- Xin Fang
- Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Chun Liang
- Department of Cardiology, Shanghai Changzheng Hospital, Second Military Medical University, 200003 Shanghai, China
| | - Mei Li
- Department of Cardiology, Shanghai Changzheng Hospital, Second Military Medical University, 200003 Shanghai, China
| | - Scott Montgomery
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 70185 Örebro, Sweden; Clinical Epidemiology Unit, Karolinska University Hospital, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Epidemiology and Public Health, University College London, WC1E 6BT, UK
| | - Katja Fall
- Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 70185 Örebro, Sweden; Clinical Epidemiology Unit, Karolinska University Hospital, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jan Aaseth
- Faculty of Public Health, Hedmark University College, 2411 Elverum, Norway; Innlandet Hospital Trust, Kongsvinger Hospital Division, 2226 Kongsvinger, Norway
| | - Yang Cao
- Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, 70185 Örebro, Sweden.
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Chu A, Foster M, Samman S. Zinc Status and Risk of Cardiovascular Diseases and Type 2 Diabetes Mellitus-A Systematic Review of Prospective Cohort Studies. Nutrients 2016; 8:E707. [PMID: 27827959 PMCID: PMC5133094 DOI: 10.3390/nu8110707] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/25/2016] [Accepted: 10/26/2016] [Indexed: 12/03/2022] Open
Abstract
Zinc is an essential trace element with proposed therapeutic effects in Type 2 diabetes mellitus (DM), however, the associations between zinc status and the prospective risks of cardiovascular diseases (CVD) and Type 2 DM have not been evaluated. The current systematic review aims to determine the relationships between zinc intake or plasma/serum zinc levels and prospective incidence of CVD and Type 2 DM. Fourteen papers describing prospective cohort studies were included, reporting either CVD (n = 91,708) and/or Type 2 DM (n = 334,387) outcomes. Primary analyses from four out of five studies reported no association between zinc intake and CVD events, when adjusted for multiple variables. Higher serum zinc level was associated with lower risk of CVD in three out of five studies; pronounced effects were observed in vulnerable populations, specifically those with Type 2 DM and patients referred to coronary angiography. The limited evidence available suggests no association between zinc status and Type 2 DM risk. Further investigations into the mechanisms of zinc's action on the pathogenesis of chronic diseases and additional evidence from observational studies are required to establish a recommendation for dietary zinc in relation to the prevention of CVD and Type 2 DM.
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Affiliation(s)
- Anna Chu
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
| | - Meika Foster
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
| | - Samir Samman
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand.
- Discipline of Nutrition and Metabolism, School of Life and Environmental Sciences, University of Sydney, Sydney 2006, NSW, Australia.
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Abstract
Diet influences many modifiable risk factors for cardiovascular diseases (CVDs). Considering this, moderation of total dietary fat, particularly trans and saturated fats, as well as cholesterol is recommended. Dietary fats should come mainly from plants and fatty fish, providing monounsaturated and polyunsaturated (including omega-3) fatty acids. Carbohydrate sources to emphasize include whole grains, legumes, vegetables, fruits, and other fiber-rich sources, rather than sugars. Although vitamins such as E, C, and some B vitamins are associated with reduced CVD risk, data do not support the use of supplements, but foods rich in these nutrients are advocated. Dietary minerals such as potassium, magnesium, and calcium may be beneficial to heart health, while reduction of dietary sodium decreases risk of hypertension. A large variety of phytonutrients are also associated with reduced CVD risk. Other dietary factors receiving research attention regarding CVD risk. Other dietary factors receiving research attention regarding CVD risk include caffeine, alcobol, and meal frequency, although more work is needed in these areas. In contrast, data are quite robust to support the importance of healthy body weight management in cardiovascular health. In general, diets based on a variety of less processed foods, mainly of plant origin, in the context of an active lifestyle, are conducive to heart health.
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Affiliation(s)
- Kathleen J. Melanson
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston,
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19
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Monarca S, Donato F, Zerbini I, Calderon RL, Craun GF. Review of epidemiological studies on drinking water hardness and cardiovascular diseases. ACTA ACUST UNITED AC 2016; 13:495-506. [PMID: 16874137 DOI: 10.1097/01.hjr.0000214608.99113.5c] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Major risk factors do not entirely explain the worldwide variability of morbidity and mortality due to cardiovascular disease. Environmental exposures, including drinking water minerals may affect cardiovascular disease risks. METHOD We conducted a qualitative review of the epidemiological studies of cardiovascular disease and drinking water hardness and calcium and magnesium levels. RESULTS Many but not all ecological studies found an inverse (i.e., protective) association between cardiovascular disease mortality and water hardness, calcium, or magnesium levels; but results are not consistent. Some case-control studies and one cohort study found either a reduced cardiovascular disease mortality risk with increased drinking water magnesium levels or an increased risk with low magnesium levels. However, the analytical studies provide little evidence that cardiovascular risks are associated with drinking water hardness or calcium levels. CONCLUSION Information from epidemiological and other studies supports the hypothesis that a low intake of magnesium may increase the risk of dying from, and possibly developing, cardiovascular disease or stroke. Thus, not removing magnesium from drinking water, or in certain situations increasing the magnesium intake from water, may be beneficial, especially for populations with an insufficient dietary intake of the mineral.
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Affiliation(s)
- Silvano Monarca
- Department of Hygiene and Public Health, University of Perugia, Perugia, Italy.
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20
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Serum magnesium and risk of new onset heart failure in men: the Kuopio Ischemic Heart Disease Study. Eur J Epidemiol 2016; 31:1035-1043. [DOI: 10.1007/s10654-016-0164-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 05/17/2016] [Indexed: 10/21/2022]
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21
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Ghosh N, Chakraborty T, Mallick S, Mana S, Singha D, Ghosh B, Roy S. Synthesis, characterization and study of antioxidant activity of quercetin-magnesium complex. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:807-813. [PMID: 26172468 DOI: 10.1016/j.saa.2015.07.050] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 07/07/2015] [Accepted: 07/08/2015] [Indexed: 06/04/2023]
Abstract
Quercetin (3,3',4',5,7-pentahydroxyflavone) one of the most abundant dietary flavonoids, has been investigated in the presence of magnesium (II) in methanol. The complex formation between quercetin and magnesium (II) was examined under UV-visible, Infra-red and (1)H NMR spectroscopic techniques. The spectroscopic data denoted that quercetin can reacts with magnesium cation (Mg(+2)) through the chelation site in the quercetin molecule. The free radical antioxidant activity of the complex with respect to the parent molecule was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. It was observed that the free radical scavenging activity of quercetin was increased after complexation of magnesium (Mg(+2)) cation.
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Affiliation(s)
- Nilanjan Ghosh
- NSHM Knowledge Campus Kolkata, Group of Institutions, 124-BL Saha Road, Kolkata, West Bengal 700053, India
| | - Tania Chakraborty
- NSHM Knowledge Campus Kolkata, Group of Institutions, 124-BL Saha Road, Kolkata, West Bengal 700053, India
| | - Sougata Mallick
- NSHM Knowledge Campus Kolkata, Group of Institutions, 124-BL Saha Road, Kolkata, West Bengal 700053, India
| | - Supriya Mana
- NSHM Knowledge Campus Kolkata, Group of Institutions, 124-BL Saha Road, Kolkata, West Bengal 700053, India
| | - Deepanwita Singha
- Nightingale Diagnostic & Medicare Centre Pvt Ltd., 11, Shakespeare Sarani, Kolkata, West Bengal 700071, India
| | - Balaram Ghosh
- Midnapore Medical College and Hospital, Vidyasagar Road, Medinipur, West Bengal 721101, India
| | - Souvik Roy
- NSHM Knowledge Campus Kolkata, Group of Institutions, 124-BL Saha Road, Kolkata, West Bengal 700053, India.
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Fardellone P. Calcium, magnésium et eaux minérales naturelles. CAHIERS DE NUTRITION ET DE DIETETIQUE 2015. [DOI: 10.1016/s0007-9960(15)30005-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Van Laecke S, Van Biesen W. Hypomagnesaemia in kidney transplantation. Transplant Rev (Orlando) 2015; 29:154-60. [PMID: 26001746 DOI: 10.1016/j.trre.2015.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Accepted: 05/03/2015] [Indexed: 01/14/2023]
Abstract
In the era of calcineurin inhibitors, hypomagnesaemia is a very common finding in kidney transplant recipients. Especially the first weeks after transplantation it is the rule rather than the exception. Hypomagnesaemia or low magnesium intake have been associated with a higher mortality or more cardiovascular events in the general population, but this association has never been explored in kidney transplant recipients, despite their increased cardiovascular risk. Kidney transplant recipients with pre- or post-transplant hypomagnesaemia seem to have an aberrant glucose metabolism and develop diabetes mellitus more frequently. Moreover, observations from alternate study populations, animal experiments or in vitro studies suggest a possible role of magnesium deficiency in graft dysfunction, bone metabolism and transplant immunology. Future observational and especially interventional studies should further define whether and to what extent we should make effort to correct this electrolyte disturbance in transplant recipients. Considering the mechanism of renal magnesium wasting, normalizing the serum magnesium concentration by oral supplementation alone might turn out to be cumbersome in kidney transplant recipients.
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Affiliation(s)
| | - Wim Van Biesen
- Renal Division, Ghent University Hospital, Ghent, Belgium.
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24
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Yamori Y, Sagara M, Mizushima S, Liu L, Ikeda K, Nara Y. An inverse association between magnesium in 24-h urine and cardiovascular risk factors in middle-aged subjects in 50 CARDIAC Study populations. Hypertens Res 2014; 38:219-25. [PMID: 25354778 DOI: 10.1038/hr.2014.158] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/28/2014] [Accepted: 09/03/2014] [Indexed: 12/15/2022]
Abstract
Serum, plasma and dietary magnesium (Mg) have been reported to be inversely associated with cardiovascular disease risk factors. We examined the associations between the 24-h urinary Mg/creatinine (Cre) ratio and cardiovascular disease risk factors, such as body mass index (BMI), blood pressure (BP), serum total cholesterol (TC) and prevalence of obesity, hypertension and hypercholesterolemia. A cross-sectional analysis was conducted among 4211 participants (49.7% women) aged 48-56 years in 50 population samples from 22 countries in the World Health Organization-coordinated Cardiovascular Diseases and Alimentary Comparison (CARDIAC) Study (1985-1994). In linear regression analyses, Mg/Cre ratio was inversely associated with BMI, systolic BP (SBP), diastolic BP (DBP) and TC (P for linear trend <0.001 for each). These associations were not markedly altered by adjustment for traditional risk factors, urinary markers or cohort effects. Multivariate-adjusted mean values for the subjects in the highest Mg/Cre ratio quintile were 6.3, 3.4, 5.3 and 4.6% lower than those for the subjects in the lowest quintile for BMI, SBP, DBP and TC (P < 0.001, respectively). The prevalence of obesity, hypertension and hypercholesterolemia was 2.10 (95% confidence interval: 1.50, 2.95), 1.55 (1.25, 1.92) and 2.06 (1.63, 2.62) times higher (P < 0.001, respectively) among the subjects in the lowest Mg/Cre ratio quintile than in the subjects in the highest quintile. These associations were not appreciably altered by adjustment for potential confounding variables. In conclusion, higher 24-h urinary Mg/Cre ratio was associated with lower cardiovascular disease risk factors, including BMI, BP, TC, obesity, hypertension and hypercholesterolemia.
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Affiliation(s)
- Yukio Yamori
- 1] Institute for World Health Development, Mukogawa Women's University, Nishinomiya, Japan [2] Laboratory of Preventive Nutritional Medicine, Research Institute for Production Development, Kyoto, Japan [3] International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan
| | - Miki Sagara
- 1] Laboratory of Preventive Nutritional Medicine, Research Institute for Production Development, Kyoto, Japan [2] International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan
| | - Shunsaku Mizushima
- 1] International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan [2] Department of Epidemiology and Public Health, Yokohama City University Graduate School of Medicine, Kanagawa, Japan
| | - Longjian Liu
- 1] International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan [2] Department of Epidemiology and Biostatistics, Drexel University School of Public Health, Philadelphia, PA, USA
| | - Katsumi Ikeda
- 1] International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan [2] School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - Yasuo Nara
- International (Former WHO-Collaborating) Center for Research on Primary Prevention of Cardiovascular Diseases, Kyoto, Japan
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25
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Floege J. Magnesium in CKD: more than a calcification inhibitor? J Nephrol 2014; 28:269-77. [PMID: 25227765 PMCID: PMC4439441 DOI: 10.1007/s40620-014-0140-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/02/2014] [Indexed: 01/30/2023]
Abstract
Magnesium fulfils important roles in multiple physiological processes. Accordingly, a tight regulation of magnesium homeostasis is essential. Dysregulated magnesium serum levels, in particular hypomagnesaemia, are common in patients with chronic kidney disease (CKD) and have been associated with poor clinical outcomes. In cell culture studies as well as in clinical situations magnesium levels were associated with vascular calcification, cardiovascular disease and altered bone-mineral metabolism. Magnesium has also been linked to diseases such as metabolic syndrome, diabetes, hypertension, fatigue and depression, all of which are common in CKD. The present review summarizes and discusses the latest clinical data on the impact of magnesium and possible effects of higher levels on the health status of patients with CKD, including an outlook on the use of magnesium-based phosphate-binding agents in this context.
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Affiliation(s)
- Jürgen Floege
- Division of Nephrology and Clinical Immunology, RWTH University of Aachen, Pauwelsstr. 30, 52057, Aachen, Germany,
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26
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Eckel RH, Jakicic JM, Ard JD, de Jesus JM, Houston Miller N, Hubbard VS, Lee IM, Lichtenstein AH, Loria CM, Millen BE, Nonas CA, Sacks FM, Smith SC, Svetkey LP, Wadden TA, Yanovski SZ. 2013 AHA/ACC Guideline on Lifestyle Management to Reduce Cardiovascular Risk. J Am Coll Cardiol 2014; 63:2960-84. [DOI: 10.1016/j.jacc.2013.11.003] [Citation(s) in RCA: 728] [Impact Index Per Article: 72.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Dibaba DT, Xun P, He K. Dietary magnesium intake is inversely associated with serum C-reactive protein levels: meta-analysis and systematic review. Eur J Clin Nutr 2014; 68:510-6. [PMID: 24518747 PMCID: PMC3975661 DOI: 10.1038/ejcn.2014.7] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND/OBJECTIVES The aim of this study was to quantitatively summarize the association of dietary magnesium (Mg) intake with serum C-reactive protein (CRP) levels in the general population. SUBJECTS/METHODS Observational and experimental studies through February 2013 were reviewed in PubMed and EMBASE. Additional information was retrieved through Google or hand search of related reference lists. The main outcome is either adjusted geometric mean of CRP or odds ratio (OR) of having serum CRP ≥ 3 mg/l. Meta-regression was used to determine the linear association of dietary Mg intake and adjusted geometric means of CRP levels. A fixed-effects model was used to pool ORs of interest, comparing those in the lowest with those in the highest group of dietary Mg intake. RESULTS A data set derived from seven cross-sectional studies including 32,918 participants was quantitatively assessed. A weighted inverse association between Mg intake and serum CRP levels was observed (β-coefficient: -0.0028; 95% confidence interval (CI), -0.0043 to -0.0013; P(trend) = 0.001) from four cross-sectional studies. The pooled OR (95% CI) of having CRP ≥ 3 mg/l was 1.49 (1.18-1.89) on comparing the lowest to the highest group of Mg intake from three studies with the data available. Qualitative assessment among five intervention studies also showed a potential beneficial effect of Mg intake on serum CRP levels. CONCLUSIONS This meta-analysis and systematic review indicates that dietary Mg intake is significantly and inversely associated with serum CRP levels. The potential beneficial effect of Mg intake on chronic diseases may be, at least in part, explained by inhibiting inflammation.
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Affiliation(s)
- D T Dibaba
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University, Bloomington, IN, USA
| | - P Xun
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University, Bloomington, IN, USA
| | - K He
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University, Bloomington, IN, USA
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Hruby A, O'Donnell CJ, Jacques PF, Meigs JB, Hoffmann U, McKeown NM. Magnesium intake is inversely associated with coronary artery calcification: the Framingham Heart Study. JACC Cardiovasc Imaging 2014; 7:59-69. [PMID: 24290571 PMCID: PMC3957229 DOI: 10.1016/j.jcmg.2013.10.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/25/2013] [Accepted: 10/25/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of this study was to examine whether magnesium intake is associated with coronary artery calcification (CAC) and abdominal aortic calcification (AAC). BACKGROUND Animal and cell studies suggest that magnesium may prevent calcification within atherosclerotic plaques underlying cardiovascular disease. Little is known about the association of magnesium intake and atherosclerotic calcification in humans. METHODS We examined cross-sectional associations of self-reported total (dietary and supplemental) magnesium intake estimated by food frequency questionnaire with CAC and AAC in participants of the Framingham Heart Study who were free of cardiovascular disease and underwent Multi-Detector Computed Tomography (MDCT) of the heart and abdomen (n = 2,695; age: 53 ± 11 years), using multivariate-adjusted Tobit regression. CAC and AAC were quantified using modified Agatston scores (AS). Models were adjusted for age, sex, body mass index, smoking status, systolic blood pressure, fasting insulin, total-to-high-density lipoprotein cholesterol ratio, use of hormone replacement therapy (women only), menopausal status (women only), treatment for hyperlipidemia, hypertension, cardiovascular disease prevention, or diabetes, as well as self-reported intake of calcium, vitamins D and K, saturated fat, fiber, alcohol, and energy. Secondary analyses included logistic regressions of CAC and AAC outcomes as cut-points (AS >0 and AS ≥90th percentile for age and sex), as well as sex-stratified analyses. RESULTS In fully adjusted models, a 50-mg/day increment in self-reported total magnesium intake was associated with 22% lower CAC (p < 0.001) and 12% lower AAC (p = 0.07). Consistent with these observations, the odds of having any CAC were 58% lower (p trend: <0.001) and any AAC were 34% lower (p trend: 0.01), in those with the highest compared to those with the lowest magnesium intake. Stronger inverse associations were observed in women than in men. CONCLUSIONS In community-dwelling participants free of cardiovascular disease, self-reported magnesium intake was inversely associated with arterial calcification, which may play a contributing role in magnesium's protective associations in stroke and fatal coronary heart disease.
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Affiliation(s)
- Adela Hruby
- Nutritional Epidemiology Program, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - Christopher J O'Donnell
- National Heart, Lung, and Blood Institute (NHLBI) Division of Intramural Research, and NHLBI's Framingham Heart Study, Framingham, Massachusetts; Cardiovascular Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Paul F Jacques
- Nutritional Epidemiology Program, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts
| | - James B Meigs
- Harvard Medical School, Boston, Massachusetts; General Medicine Division, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Udo Hoffmann
- Harvard Medical School, Boston, Massachusetts; Massachusetts General Hospital Cardiac MR PET CT Program and the Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts
| | - Nicola M McKeown
- Nutritional Epidemiology Program, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts.
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Guasch-Ferré M, Bulló M, Estruch R, Corella D, Martínez-González MA, Ros E, Covas M, Arós F, Gómez-Gracia E, Fiol M, Lapetra J, Muñoz MÁ, Serra-Majem L, Babio N, Pintó X, Lamuela-Raventós RM, Ruiz-Gutiérrez V, Salas-Salvadó J. Dietary magnesium intake is inversely associated with mortality in adults at high cardiovascular disease risk. J Nutr 2014; 144:55-60. [PMID: 24259558 DOI: 10.3945/jn.113.183012] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The relation between dietary magnesium intake and cardiovascular disease (CVD) or mortality was evaluated in several prospective studies, but few of them have assessed the risk of all-cause mortality, which has never been evaluated in Mediterranean adults at high cardiovascular risk. The aim of this study was to assess the association between magnesium intake and CVD and mortality risk in a Mediterranean population at high cardiovascular risk with high average magnesium intake. The present study included 7216 men and women aged 55-80 y from the PREDIMED (Prevención con Dieta Mediterránea) study, a randomized clinical trial. Participants were assigned to 1 of 2 Mediterranean diets (supplemented with nuts or olive oil) or to a control diet (advice on a low-fat diet). Mortality was ascertained by linkage to the National Death Index and medical records. We fitted multivariable-adjusted Cox regressions to assess associations between baseline energy-adjusted tertiles of magnesium intake and relative risk of CVD and mortality. Multivariable analyses with generalized estimating equation models were used to assess the associations between yearly repeated measurements of magnesium intake and mortality. After a median follow-up of 4.8 y, 323 total deaths, 81 cardiovascular deaths, 130 cancer deaths, and 277 cardiovascular events occurred. Energy-adjusted baseline magnesium intake was inversely associated with cardiovascular, cancer, and all-cause mortality. Compared with lower consumers, individuals in the highest tertile of magnesium intake had a 34% reduction in mortality risk (HR: 0.66; 95% CI: 0.45, 0.95; P < 0.01). Dietary magnesium intake was inversely associated with mortality risk in Mediterranean individuals at high risk of CVD. This trial was registered at controlled-trials.com as ISRCTN35739639.
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Affiliation(s)
- Marta Guasch-Ferré
- Human Nutrition Unit, University Hospital of Sant Joan de Reus, Faculty of Medicine and Health Sciences, IISPV, Rovira i Virgili University, Reus, Spain
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Eckel RH, Jakicic JM, Ard JD, de Jesus JM, Miller NH, Hubbard VS, Lee IM, Lichtenstein AH, Loria CM, Millen BE, Nonas CA, Sacks FM, Smith SC, Svetkey LP, Wadden TA, Yanovski SZ. Reprint: 2013 AHA/ACC Guideline on Lifestyle Management to Reduce Cardiovascular Risk. Circulation 2013; 129:e2. [PMID: 24220553 DOI: 10.1161/01.cir.0000437740.48606.d1] [Citation(s) in RCA: 911] [Impact Index Per Article: 82.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Del Gobbo LC, Imamura F, Wu JHY, de Oliveira Otto MC, Chiuve SE, Mozaffarian D. Circulating and dietary magnesium and risk of cardiovascular disease: a systematic review and meta-analysis of prospective studies. Am J Clin Nutr 2013; 98:160-73. [PMID: 23719551 PMCID: PMC3683817 DOI: 10.3945/ajcn.112.053132] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Clinical hypomagnesemia and experimental restriction of dietary magnesium increase cardiac arrhythmias. However, whether or not circulating or dietary magnesium at usual concentrations or intakes influences the risk of cardiovascular disease (CVD), including fatal ischemic heart disease (IHD), is unclear. OBJECTIVE We performed a systematic review and meta-analysis to investigate prospective associations of circulating and dietary magnesium with incidence of CVD, IHD, and fatal IHD. DESIGN Multiple literature databases were systematically searched without language restriction through May 2012. Inclusion decisions and data extraction were performed in duplicate. Linear dose-response associations were assessed by using random-effects meta-regression. Potential nonlinear associations were evaluated by using restricted cubic splines. RESULTS Of 2303 articles, 16 studies met the eligibility criteria; these studies comprised 313,041 individuals and 11,995 CVD, 7534 IHD, and 2686 fatal IHD events. Circulating magnesium (per 0.2 mmol/L increment) was associated with a 30% lower risk of CVD (RR: 0.70; 95% CI: 0.56, 0.88 per 0.2 mmol/L) and trends toward lower risks of IHD (RR: 0.83; 95% CI: 0.75, 1.05) and fatal IHD (RR: 0.61; 95% CI: 0.37, 1.00). Dietary magnesium (per 200-mg/d increment) was not significantly associated with CVD (RR: 0.89; 95% CI: 0.75, 1.05) but was associated with a 22% lower risk of IHD (RR: 0.78; 95% CI: 0.67, 0.92). The association of dietary magnesium with fatal IHD was nonlinear (P < 0.001), with an inverse association observed up to a threshold of ∼250 mg/d (RR: 0.73; 95% CI: 0.62, 0.86), compared with lower intakes. CONCLUSION Circulating and dietary magnesium are inversely associated with CVD risk, which supports the need for clinical trials to evaluate the potential role of magnesium in the prevention of CVD and IHD.
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Affiliation(s)
- Liana C Del Gobbo
- Department of Nutrition, Harvard School of Public Health, Boston MA, USA.
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Joosten MM, Gansevoort RT, Mukamal KJ, van der Harst P, Geleijnse JM, Feskens EJM, Navis G, Bakker SJL. Urinary and plasma magnesium and risk of ischemic heart disease. Am J Clin Nutr 2013; 97:1299-306. [PMID: 23485414 DOI: 10.3945/ajcn.112.054114] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Previous studies on dietary magnesium and risk of ischemic heart disease (IHD) have yielded inconsistent results, in part because of a lack of direct measures of actual magnesium uptake. Urinary excretion of magnesium, an indicator of dietary magnesium uptake, might provide more consistent results. OBJECTIVE The objective was to investigate whether urinary magnesium excretion and plasma magnesium are associated with IHD risk. DESIGN We examined 7664 adult participants free of known cardiovascular disease in the Prevention of Renal and Vascular End-Stage Disease (PREVEND) study-a prospective population-based cohort study. Urinary magnesium excretion was measured in 2 baseline 24-h urine collections. RESULTS Mean ± SD urinary magnesium excretion was 4.24 ± 1.65 mmol/24 h for men and 3.54 ± 1.40 mmol/24 h for women. During a median follow-up of 10.5 y (IQR: 9.9-10.8 y), 462 fatal and nonfatal IHD events occurred. After multivariable adjustment, urinary magnesium excretion had a nonlinear relation with IHD risk (P-curvature = 0.01). The lowest sex-specific quintile (men: <2.93 mmol/24 h; women: <2.45 mmol/24 h) had an increased risk of fatal and nonfatal IHD (multivariable HR: 1.60; 95% CI: 1.28, 2.00) compared with the upper 4 quintiles of urinary magnesium excretion. A similar increase in risk of the lowest quintile was observed for mortality related to IHD (HR: 1.70; 95% CI: 1.10, 2.61). No associations were observed between circulating magnesium and risk of IHD. CONCLUSIONS Low urinary magnesium excretion was independently associated with a higher risk of IHD incidence. An increased dietary intake of magnesium, particularly in those with the lowest urinary magnesium, could reduce the risk of IHD.
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Chiuve SE, Sun Q, Curhan GC, Taylor EN, Spiegelman D, Willett WC, Manson JE, Rexrode KM, Albert CM. Dietary and plasma magnesium and risk of coronary heart disease among women. J Am Heart Assoc 2013; 2:e000114. [PMID: 23537810 PMCID: PMC3647257 DOI: 10.1161/jaha.113.000114] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Magnesium is associated with lower risk of sudden cardiac death, possibly through antiarrhythmic mechanisms. Magnesium influences endothelial function, inflammation, blood pressure, and diabetes, but a direct relation with coronary heart disease (CHD) risk has not been established. Methods and Results We prospectively examined the association between dietary and plasma magnesium and risk of CHD among women in the Nurses' Health Study. The association for magnesium intake was examined among 86 323 women free of disease in 1980. Information on magnesium intake and lifestyle factors was ascertained every 2 to 4 years through questionnaires. Through 2008, 3614 cases of CHD (2511 nonfatal/1103 fatal) were documented. For plasma magnesium, we conducted a nested case–control analysis, with 458 cases of incident CHD (400 nonfatal/58 fatal) matched to controls (1:1) on age, smoking, fasting status, and date of blood sampling. Higher magnesium intake was not associated with lower risk of total CHD (P‐linear trend=0.12) or nonfatal CHD (P‐linear trend=0.88) in multivariable models. However, magnesium intake was inversely associated with risk of fatal CHD. The RR comparing quintile 5 to quintile 1 of magnesium intake was 0.61 (95% CI, 0.45 to 0.84; P‐linear trend=0.003). The association between magnesium intake and risk of fatal CHD appeared to be mediated partially by hypertension. Plasma magnesium levels above 2.0 mg/dL were associated with lower risk of CHD, although not independent of other cardiovascular biomarkers (RR, 0.67; 95% CI, 0.44 to 1.04). Conclusions Dietary and plasma magnesium were not associated with total CHD incidence in this population of women. Dietary magnesium intake was inversely associated with fatal CHD, which may be mediated in part by hypertension.
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Affiliation(s)
- Stephanie E Chiuve
- Center for Arrhythmia Prevention, Department of Medicine Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02215, USA.
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Qu X, Jin F, Hao Y, Li H, Tang T, Wang H, Yan W, Dai K. Magnesium and the risk of cardiovascular events: a meta-analysis of prospective cohort studies. PLoS One 2013; 8:e57720. [PMID: 23520480 PMCID: PMC3592895 DOI: 10.1371/journal.pone.0057720] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Accepted: 01/25/2013] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Prospective studies that have examined the association between dietary magnesium intake and serum magnesium concentrations and the risk of cardiovascular disease (CVD) events have reported conflicting findings. We undertook a meta-analysis to evaluate the association between dietary magnesium intake and serum magnesium concentrations and the risk of total CVD events. METHODOLOGY/PRINCIPAL FINDINGS We performed systematic searches on MEDLINE, EMBASE, and OVID up to February 1, 2012 without limits. Categorical, linear, and nonlinear, dose-response, heterogeneity, publication bias, subgroup, and meta-regression analysis were performed. The analysis included 532,979 participants from 19 studies (11 studies on dietary magnesium intake, 6 studies on serum magnesium concentrations, and 2 studies on both) with 19,926 CVD events. The pooled relative risks of total CVD events for the highest vs. lowest category of dietary magnesium intake and serum magnesium concentrations were 0.85 (95% confidence interval 0.78 to 0.92) and 0.77 (0.66 to 0.87), respectively. In linear dose-response analysis, only serum magnesium concentrations ranging from 1.44 to 1.8 mEq/L were significantly associated with total CVD events risk (0.91, 0.85 to 0.97) per 0.1 mEq/L (P(nonlinearity)= 0.465). However, significant inverse associations emerged in nonlinear models for dietary magnesium intake (P(nonlinearity)= 0.024). The greatest risk reduction occurred when intake increased from 150 to 400 mg/d. There was no evidence of publication bias. CONCLUSIONS/SIGNIFICANCE There is a statistically significant nonlinear inverse association between dietary magnesium intake and total CVD events risk. Serum magnesium concentrations are linearly and inversely associated with the risk of total CVD events.
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Affiliation(s)
- Xinhua Qu
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Fangchun Jin
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yongqiang Hao
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Huiwu Li
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Tingting Tang
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hao Wang
- Department of Pharmacology and Biostatistics, Institute of Medical Sciences, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Weili Yan
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
| | - Kerong Dai
- Shanghai Key Laboratory of Orthopaedic Implant, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Abstract
Hass avocados, the most common commercial avocado cultivars in the world, contain a variety of essential nutrients and important phytochemicals. Although the official avocado serving is one-fifth of a fruit (30 g), according to NHANES analysis the average consumption is one-half an avocado (68 g), which provides a nutrient and phytochemical dense food consisting of the following: dietary fiber (4.6 g), total sugar (0.2 g), potassium (345 mg), sodium (5.5 mg), magnesium (19.5 mg), vitamin A (43 μg), vitamin C (6.0 mg), vitamin E (1.3 mg), vitamin K1 (14 μg), folate (60 mg), vitamin B-6 (0.2 mg), niacin (1.3 mg), pantothenic acid (1.0 mg), riboflavin (0.1 mg), choline (10 mg), lutein/zeaxanthin (185 μg), phytosterols (57 mg), and high-monounsaturated fatty acids (6.7 g) and 114 kcals or 1.7 kcal/g. The avocado oil consists of 71% monounsaturated fatty acids (MUFA), 13% polyunsaturated fatty acids (PUFA), and 16% saturated fatty acids (SFA), which helps to promote healthy blood lipid profiles and enhance the bioavailability of fat soluble vitamins and phytochemicals from the avocado or other fruits and vegetables, naturally low in fat, which are consumed with avocados. There are eight preliminary clinical studies showing that avocado consumption helps support cardiovascular health. Exploratory studies suggest that avocados may support weight management and healthy aging.
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Affiliation(s)
- Mark L Dreher
- Nutrition Science Solutions LLC, 900 S. Rainbow Ranch Road, Wimberley, TX 78676, USA.
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Dai Q, Shu XO, Deng X, Xiang YB, Li H, Yang G, Shrubsole MJ, Ji B, Cai H, Chow WH, Gao YT, Zheng W. Modifying effect of calcium/magnesium intake ratio and mortality: a population-based cohort study. BMJ Open 2013; 3:bmjopen-2012-002111. [PMID: 23430595 PMCID: PMC3585973 DOI: 10.1136/bmjopen-2012-002111] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVES Magnesium (Mg) and calcium (Ca) antagonise each other in (re)absorption, inflammation and many other physiological activities. Based on mathematical estimation, the absorbed number of Ca or Mg depends on the dietary ratio of Ca to Mg intake. We hypothesise that the dietary Ca/Mg ratio modifies the effects of Ca and Mg on mortality due to gastrointestinal tract cancer and, perhaps, mortality due to diseases occurring in other organs or systems. DESIGN Prospective studies. SETTING Population-based cohort studies (The Shanghai Women's Health Study and the Shanghai Men's Health Study) conducted in Shanghai, China. PARTICIPANTS 74 942 Chinese women aged 40-70 years and 61 500 Chinese men aged 40-74 years participated in the study. PRIMARY OUTCOME MEASURES All-cause mortality and disease-specific mortality. RESULTS In this Chinese population with a low Ca/Mg intake ratio (a median of 1.7 vs around 3.0 in US populations), intakes of Mg greater than US Recommended Daily Allowance (RDA) levels (320 mg/day among women and 420 mg/day among men) were related to increased risks of total mortality for both women and men. Consistent with our hypothesis, the Ca/Mg intake ratio significantly modified the associations of intakes of Ca and Mg with mortality risk, whereas no significant interactions between Ca and Mg in relation to outcome were found. The associations differed by gender. Among men with a Ca/Mg ratio >1.7, increased intakes of Ca and Mg were associated with reduced risks of total mortality, and mortality due to coronary heart diseases. In the same group, intake of Ca was associated with a reduced risk of mortality due to cancer. Among women with a Ca/Mg ratio ≤1.7, intake of Mg was associated with increased risks of total mortality, and mortality due to cardiovascular diseases and colorectal cancer. CONCLUSIONS These results, if confirmed, may help to understand the optimal balance between Ca and Mg in the aetiology and prevention of these common diseases and reduction in mortality.
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Affiliation(s)
- Qi Dai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Xinqing Deng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Yong-Bing Xiang
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | - Honglan Li
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | - Gong Yang
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Martha J Shrubsole
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Butian Ji
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hui Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
| | - Wong-Ho Chow
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
- Division of Cancer Prevention and Population Sciences, Department of Epidemiology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt School of Medicine, Nashville, Tennessee, USA
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Qin B, Shi X, Samai PS, Renner JB, Jordan JM, He K. Association of dietary magnesium intake with radiographic knee osteoarthritis: results from a population-based study. Arthritis Care Res (Hoboken) 2012; 64:1306-11. [PMID: 22511536 PMCID: PMC3410963 DOI: 10.1002/acr.21708] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To examine the cross-sectional association between dietary magnesium intake and radiographic knee osteoarthritis (OA) among African American and white men and women. METHODS The presence of radiographic knee OA was examined among participants from the Johnston County Osteoarthritis Project and was defined as a Kellgren/Lawrence grade of at least 2 in at least 1 knee. The Block Food Frequency Questionnaire was used to assess magnesium intake. Effect modifiers were explored by testing interactions of magnesium intake and selected factors based on previous studies. The multivariable logistic regression model with standard energy adjustment method was used to estimate the relationship between magnesium intake and radiographic knee OA. RESULTS The prevalence of knee OA was 36.27% among the 2,112 participants. The relationship between magnesium intake and radiographic knee OA was found to be modified by race (P for interaction = 0.03). An inverse threshold association was observed among whites. Compared to participants in the lowest quintile, the relative odds of radiographic knee OA were cut by one-half for participants in the second quintile of magnesium intake (odds ratio 0.52, 95% confidence interval 0.34-0.79); further magnesium intake did not provide further benefits (P for trend = 0.51). A statistically significant association was not observed among African Americans. CONCLUSION A modest inverse threshold association was found between dietary magnesium intake and knee OA in whites, but not in African Americans. Further studies are needed to confirm these results and to elucidate the possible mechanisms of action for the racial modification.
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Affiliation(s)
- Bo Qin
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Xiaoyan Shi
- Advanced Analytics Division, SAS Institute Inc., Cary, NC
| | - Peter S. Samai
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Jordan B. Renner
- Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Joanne M. Jordan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Orthopedics, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Ka He
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
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Abstract
The pistachio is a nutrient-dense nut with a heart-healthy fatty-acid profile as well as protein, dietary fiber, potassium, magnesium, vitamin K, γ-tocopherol, and a number of phytochemicals. The pistachio's unique green and purple kernel color is a result of its lutein and anthocyanin content. Among nuts, pistachios contain the highest levels of potassium, γ-tocopherol, vitamin K, phytosterols, and xanthophyll carotenoids. Five published randomized cardiovascular trials have shown that pistachios promote heart-healthy blood lipid profiles. Exploratory clinical studies suggest that pistachios help maintain healthy antioxidant and anti-inflammatory activity, glycemic control, and endothelial function. When consumed in moderation, pistachios may help control body weight because of their satiety and satiation effects and their reduced net metabolizable energy content. One study with subjects in a weight-loss program demonstrated lower body mass index and triglyceride levels in individuals who consumed pistachios compared with those who consumed an isocaloric pretzel snack. Emerging research suggests that the addition of pistachios to high-glycemic meals may lower the overall postprandial glycemic response. This review examines the nutrients and phytochemicals in pistachios as well as the potential health effects of these nuts.
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Affiliation(s)
- Mark L Dreher
- Nutrition Science Solutions, 900 S. Rainbow Ranch Road, Wimberley, Texas 78676, USA.
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Zhang W, Iso H, Ohira T, Date C, Tamakoshi A. Associations of dietary magnesium intake with mortality from cardiovascular disease: The JACC study. Atherosclerosis 2012; 221:587-95. [DOI: 10.1016/j.atherosclerosis.2012.01.034] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 01/16/2012] [Accepted: 01/23/2012] [Indexed: 01/10/2023]
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40
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Endothelial cells and magnesium: implications in atherosclerosis. Clin Sci (Lond) 2012; 122:397-407. [PMID: 22248353 DOI: 10.1042/cs20110506] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
There is no doubt that the functional and structural integrity of the endothelium is critical in maintaining vascular homoeostasis and in preventing atherosclerosis. In the light of epidemiological and experimental studies, magnesium deficiency is emerging as an inducer of endothelial dysfunction. In particular, data on the effects of low extracellular magnesium on cultured endothelial cells reinforce the idea that correcting magnesium homoeostasis might be a helpful and inexpensive intervention to prevent and treat endothelial dysfunction and, consequently, atherosclerosis.
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Magnesium intake and prevalence of metabolic syndrome in adults: Tehran Lipid and Glucose Study. Public Health Nutr 2012; 15:693-701. [DOI: 10.1017/s1368980011002941] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractObjectiveWe examined the association of metabolic syndrome (MetS) and its components with dietary intakes of Mg in Tehran adults.DesignIn a cross-sectional study, dietary intakes were assessed using a valid and reliable FFQ. MetS was defined according to the modified guidelines of the National Cholesterol Education Program Adult Treatment Panel III. Waist circumference (WC) was coded according to the newly introduced cut-off points for Iranian adults (≥95 cm for both genders).SettingParticipants of the Tehran Lipid and Glucose Study (2006–2008).SubjectsAdults (n2504; 1120 men and 1384 women) aged 18–74 years.ResultsThe mean age of participants was 40·8 (sd14·6) years and 38·2 (sd13·5) years for men and women, respectively. The reported mean intake of Mg was 349 (sd109) mg/d. After adjustment for confounding factors, dietary Mg intake was inversely associated with fasting blood glucose (β= −0·08,P= 0·006), TAG (β= −0·058,P= 0·009) and WC (β= −0·013,P= 0·006); however, there were no associations between dietary Mg and diastolic blood pressure, systolic blood pressure or HDL cholesterol. An association was observed between MetSZ-score and Mg intake (crudeβ= −0·017,P= 0·001), independent of age, gender, smoking, physical activity and BMI; this association was attenuated following further adjustment for dietary factors and menopausal status (β= −0·034,P= 0·061).ConclusionsOur findings suggest a significant inverse association between dietary Mg, MetS and its components.
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Katz DL, Doughty K, Ali A. Cocoa and chocolate in human health and disease. Antioxid Redox Signal 2011; 15:2779-811. [PMID: 21470061 PMCID: PMC4696435 DOI: 10.1089/ars.2010.3697] [Citation(s) in RCA: 221] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 04/05/2011] [Accepted: 04/06/2011] [Indexed: 01/26/2023]
Abstract
Cocoa contains more phenolic antioxidants than most foods. Flavonoids, including catechin, epicatechin, and procyanidins predominate in antioxidant activity. The tricyclic structure of the flavonoids determines antioxidant effects that scavenge reactive oxygen species, chelate Fe2+ and Cu+, inhibit enzymes, and upregulate antioxidant defenses. The epicatechin content of cocoa is primarily responsible for its favorable impact on vascular endothelium via its effect on both acute and chronic upregulation of nitric oxide production. Other cardiovascular effects are mediated through anti-inflammatory effects of cocoa polyphenols, and modulated through the activity of NF-κB. Antioxidant effects of cocoa may directly influence insulin resistance and, in turn, reduce risk for diabetes. Further, cocoa consumption may stimulate changes in redox-sensitive signaling pathways involved in gene expression and the immune response. Cocoa can protect nerves from injury and inflammation, protect the skin from oxidative damage from UV radiation in topical preparations, and have beneficial effects on satiety, cognitive function, and mood. As cocoa is predominantly consumed as energy-dense chocolate, potential detrimental effects of overconsumption exist, including increased risk of weight gain. Overall, research to date suggests that the benefits of moderate cocoa or dark chocolate consumption likely outweigh the risks.
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Affiliation(s)
- David L Katz
- Yale University Prevention Research Center, Griffin Hospital, Derby, Connecticut 06418, USA.
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Dai Q, Motley SS, Smith JA, Concepcion R, Barocas D, Byerly S, Fowke JH. Blood magnesium, and the interaction with calcium, on the risk of high-grade prostate cancer. PLoS One 2011; 6:e18237. [PMID: 21541018 PMCID: PMC3081812 DOI: 10.1371/journal.pone.0018237] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Accepted: 02/23/2011] [Indexed: 12/15/2022] Open
Abstract
Background Ionized calcium (Ca) and magnesium (Mg) compete as essential messengers to
regulate cell proliferation and inflammation. We hypothesized that
inadequate Mg levels, perhaps relative to Ca levels (e.g. a high Ca/Mg
ratio) are associated with greater prostate cancer risk. Study Design In this biomarker sub-study of the Nashville Men's Health Study (NMHS),
we included 494 NMHS participants, consisting of 98 high-grade
(Gleason≥7) and 100 low-grade cancer cases, 133 prostate intraepithelial
neoplasia (PIN) cases, and 163 controls without cancer or PIN at biopsy.
Linear and logistic regression were used to determine associations between
blood Ca, Mg, and the Ca/Mg ratio across controls and case groups while
adjusting for potential confounding factors. Results Serum Mg levels were significantly lower, while the Ca/Mg ratio was
significantly higher, among high-grade cases vs. controls
(p = 0.04, p = 0.01,
respectively). Elevated Mg was significantly associated with a lower risk of
high-grade prostate cancer (OR = 0.26 (0.09, 0.85)). An
elevated Ca/Mg ratio was also associated with an increased risk of
high-grade prostate cancer (OR = 2.81 (1.24, 6.36)
adjusted for serum Ca and Mg). In contrast, blood Ca levels were not
significantly associated with prostate cancer or PIN.Mg, Ca, or Ca/Mg levels
were not associated with low-grade cancer, PIN, PSA levels, prostate volume,
or BPH treatment. Conclusion Low blood Mg levels and a high Ca/Mg ratio were significantly associated with
high-grade prostate cancer. These findings suggest Mg affects prostate
cancer risk perhaps through interacting with Ca.
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Affiliation(s)
- Qi Dai
- Vanderbilt University Medical Center, Vanderbilt University School of Medicine, Nashville, Tennessee, United States of America.
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Beckstrand RL, Pickens JS. Beneficial Effects of Magnesium Supplementation. J Evid Based Complementary Altern Med 2011. [DOI: 10.1177/2156587211401746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Magnesium is an essential mineral necessary for optimal cellular health and well-being. Many adults in the United States fail to get recommended amounts of magnesium from their diets. Even so, symptoms of magnesium deficiency are rarely seen; however, maintaining normal body stores could be preventative against common diseases.
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Chiuve SE, Korngold EC, Januzzi JL, Gantzer ML, Albert CM. Plasma and dietary magnesium and risk of sudden cardiac death in women. Am J Clin Nutr 2011; 93:253-60. [PMID: 21106914 PMCID: PMC3021423 DOI: 10.3945/ajcn.110.002253] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Magnesium has antiarrhythmic properties in cellular and experimental models; however, its relation to sudden cardiac death (SCD) risk is unclear. OBJECTIVE We prospectively examined the association between magnesium, as measured in diet and plasma, and risk of SCD. DESIGN The analysis was conducted within the Nurses' Health Study. The association for magnesium intake was examined prospectively in 88,375 women who were free of disease in 1980. Information on magnesium intake, other nutrients, and lifestyle factors was updated every 2-4 y through questionnaires, and 505 cases of sudden or arrhythmic death were documented over 26 y of follow-up. For plasma magnesium, a nested case-control analysis including 99 SCD cases and 291 controls matched for age, ethnicity, smoking, and presence of cardiovascular disease was performed. RESULTS After multivariable adjustment for confounders and potential intermediaries, the relative risk of SCD was significantly lower in women in the highest quartile compared with those in the lowest quartile of dietary (relative risk: 0.63; 95% CI: 0.44, 0.91) and plasma (relative risk: 0.23; 95% CI: 0.09, 0.60) magnesium. The linear inverse relation with SCD was strongest for plasma magnesium (P for trend = 0.003), in which each 0.25-mg/dL (1 SD) increment in plasma magnesium was associated with a 41% (95% CI: 15%, 58%) lower risk of SCD. CONCLUSIONS In this prospective cohort of women, higher plasma concentrations and dietary magnesium intakes were associated with lower risks of SCD. If the observed association is causal, interventions directed at increasing dietary or plasma magnesium might lower the risk of SCD.
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Affiliation(s)
- Stephanie E Chiuve
- Center for Arrhythmia Prevention, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
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Chacko SA, Sul J, Song Y, Li X, LeBlanc J, You Y, Butch A, Liu S. Magnesium supplementation, metabolic and inflammatory markers, and global genomic and proteomic profiling: a randomized, double-blind, controlled, crossover trial in overweight individuals. Am J Clin Nutr 2011; 93:463-73. [PMID: 21159786 PMCID: PMC3021435 DOI: 10.3945/ajcn.110.002949] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Dietary magnesium intake has been favorably associated with reduced risk of metabolic outcomes in observational studies; however, few randomized trials have introduced a systems-biology approach to explore molecular mechanisms of pleiotropic metabolic actions of magnesium supplementation. OBJECTIVE We examined the effects of oral magnesium supplementation on metabolic biomarkers and global genomic and proteomic profiling in overweight individuals. DESIGN We undertook this randomized, crossover, pilot trial in 14 healthy, overweight volunteers [body mass index (in kg/m(2)) ≥25] who were randomly assigned to receive magnesium citrate (500 mg elemental Mg/d) or a placebo for 4 wk with a 1-mo washout period. Fasting blood and urine specimens were collected according to standardized protocols. Biochemical assays were conducted on blood specimens. RNA was extracted and subsequently hybridized with the Human Gene ST 1.0 array (Affymetrix, Santa Clara, CA). Urine proteomic profiling was analyzed with the CM10 ProteinChip array (Bio-Rad Laboratories, Hercules, CA). RESULTS We observed that magnesium treatment significantly decreased fasting C-peptide concentrations (change: -0.4 ng/mL after magnesium treatment compared with +0.05 ng/mL after placebo treatment; P = 0.004) and appeared to decrease fasting insulin concentrations (change: -2.2 μU/mL after magnesium treatment compared with 0.0 μU/mL after placebo treatment; P = 0.25). No consistent patterns were observed across inflammatory biomarkers. Gene expression profiling revealed up-regulation of 24 genes and down-regulation of 36 genes including genes related to metabolic and inflammatory pathways such as C1q and tumor necrosis factor-related protein 9 (C1QTNF9) and pro-platelet basic protein (PPBP). Urine proteomic profiling showed significant differences in the expression amounts of several peptides and proteins after treatment. CONCLUSION Magnesium supplementation for 4 wk in overweight individuals led to distinct changes in gene expression and proteomic profiling consistent with favorable effects on several metabolic pathways. This trial was registered at clinicaltrials.gov as NCT00737815.
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Affiliation(s)
- Sara A Chacko
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, Los Angeles, CA 90095, USA
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Khan AM, Sullivan L, McCabe E, Levy D, Vasan RS, Wang TJ. Lack of association between serum magnesium and the risks of hypertension and cardiovascular disease. Am Heart J 2010; 160:715-20. [PMID: 20934566 DOI: 10.1016/j.ahj.2010.06.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 06/24/2010] [Indexed: 01/13/2023]
Abstract
BACKGROUND Experimental studies have linked hypomagnesemia with the development of vascular dysfunction, hypertension, and atherosclerosis. Prior clinical studies have yielded conflicting results but were limited by the use of self-reported magnesium intake or short follow-up periods. METHODS We examined the relationship between serum magnesium concentration and incident hypertension, cardiovascular disease (CVD), and mortality in 3,531 middle-aged adult participants in the Framingham Heart Study offspring cohort. Analyses were performed using Cox proportional hazards regressions, adjusted for traditional CVD risk factors. RESULTS Follow-up was 8 years for new-onset hypertension (551 events) and 20 years for CVD (554 events). There was no association between baseline serum magnesium and the development of hypertension (multivariable-adjusted hazards ratio per 0.15 mg/dL 1.03, 95% CI 0.92-1.15, P = .61), CVD (0.83, 95% CI 0.49-1.40, P = .49), or all-cause mortality (0.77, 95% CI 0.41-1.45, P = .42). Similar findings were observed in categorical analyses, in which serum magnesium was modeled in categories (<1.5, 1.5-2.2, >2.2 mg/dL) or in quartiles. CONCLUSIONS In conclusion, data from this large, community-based cohort do not support the hypothesis that low serum magnesium is a risk factor for developing hypertension or CVD.
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Chacko SA, Song Y, Nathan L, Tinker L, de Boer IH, Tylavsky F, Wallace R, Liu S. Relations of dietary magnesium intake to biomarkers of inflammation and endothelial dysfunction in an ethnically diverse cohort of postmenopausal women. Diabetes Care 2010; 33:304-10. [PMID: 19903755 PMCID: PMC2809271 DOI: 10.2337/dc09-1402] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Although magnesium may favorably affect metabolic outcomes, few studies have investigated the role of magnesium intake in systemic inflammation and endothelial dysfunction in humans. RESEARCH DESIGN AND METHODS Among 3,713 postmenopausal women aged 50-79 years in the Women's Health Initiative Observational Study and free of cardiovascular disease, cancer, and diabetes at baseline, we measured plasma concentrations of high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6), turnor necrosis factor-alpha receptor 2 (TNF-alpha-R2), soluble intercellular adhesion molecule-1 (sICAM-1), soluble vascular cell adhesion molecule-1 (sVCAM-1), and E-selectin. Magnesium intake was assessed using a semiquantitative food frequency questionnaire. RESULTS After adjustment for age, ethnicity, clinical center, time of blood draw, smoking, alcohol, physical activity, energy intake, BMI, and diabetes status, magnesium intake was inversely associated with hs-CRP (P for linear trend = 0.003), IL-6 (P < 0.0001), TNF-alpha-R2 (P = 0.0006), and sVCAM-1 (P = 0.06). Similar findings remained after further adjustment for dietary fiber, fruit, vegetables, folate, and saturated and trans fat intake. Multivariable-adjusted geometric means across increasing quintiles of magnesium intake were 3.08, 2.63, 2.31, 2.53, and 2.16 mg/l for hs-CRP (P = 0.005); 2.91, 2.63, 2.45, 2.27, and 2.26 pg/ml for IL-6 (P = 0.0005); and 707, 681, 673, 671, and 656 ng/ml for sVCAM-1 (P = 0.04). An increase of 100 mg/day magnesium was inversely associated with hs-CRP (-0.23 mg/l +/- 0.07; P = 0.002), IL-6 (-0.14 +/- 0.05 pg/ml; P = 0.004), TNF-alpha-R2 (-0.04 +/- 0.02 pg/ml; P = 0.06), and sVCAM-1 (-0.04 +/- 0.02 ng/ml; P = 0.07). No significant ethnic differences were observed. CONCLUSIONS High magnesium intake is associated with lower concentrations of certain markers of systemic inflammation and endothelial dysfunction in postmenopausal women.
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Affiliation(s)
- Sara A Chacko
- Department of Epidemiology and Program on Genomics and Nutrition, School of Public Health, and Center for Metabolic Diseases Prevention, UCLA, Los Angeles, California, USA
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Mathers TW, Beckstrand RL. Oral magnesium supplementation in adults with coronary heart disease or coronary heart disease risk. ACTA ACUST UNITED AC 2009; 21:651-7. [DOI: 10.1111/j.1745-7599.2009.00460.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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