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Ayyat MS, Mostafa TH, ElTalawy ASAE, Hammad MER, Gabr AA, Al-Sagheer AA. Dietary Selenium Influence on Milk Production, Blood Profiles, and Reproductive Efficiency in She-Camels and Neonatal Growth Performance. Biol Trace Elem Res 2025:10.1007/s12011-025-04639-5. [PMID: 40332696 DOI: 10.1007/s12011-025-04639-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2025] [Accepted: 04/20/2025] [Indexed: 05/08/2025]
Abstract
This study aimed to investigate the effects of dietary selenium supplementation during the pre- and post-partum periods on milk production, blood parameters, reproductive performance in she-camels, and the growth of their offspring. Twenty pregnant Maghrabi she-camels, in their last three months of gestation, were randomly divided into four experimental groups and supplemented with selenium-methionine at levels of 0, 0.2, 0.3, and 0.4 mg/kg diet. The experiment lasted 12 months, including a 3-month pre-partum and 9-month lactation period, during which the camels were fed a basal diet of concentrate feed, berseem hay, and rice straw. The results revealed that Se supplementation at all levels significantly increased placental weight and calf body weight at weaning, with the highest body weight and average daily gain observed in the 0.4 mg/kg group. Reproductive performance was also enhanced, with a reduction in postpartum first estrus interval and calving interval, particularly in the 0.4 mg/kg group. Milk production was significantly higher in Se-supplemented groups, with the 0.4 mg/kg group showing the longest lactation period and highest milk yield. Fat, lactose, and total solids yields improved, and Se concentration in milk increased with supplementation. Furthermore, Se supplementation led to improvements in blood biochemical parameters, including glucose, cholesterol, and triglycerides. Hormone concentrations of T3, T4, P4, and E2 were significantly higher in Se-supplemented groups. In conclusion, dietary Se supplementation during the pre- and post-partum periods can significantly enhance reproductive performance, milk production in she-camels and growth performance of their offspring, with the greatest benefits observed at 0.4 mg/kg.
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Affiliation(s)
- Mohamed S Ayyat
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Tarek H Mostafa
- Camel Research Department, Animal Production Research Institute, Giza, Dokki, Egypt
| | | | - Mohammed E R Hammad
- Animal Production Department, Faculty of Agriculture, Tanta University, Tanta, Egypt
| | - Ahmed A Gabr
- Animal Production Department, Faculty of Agriculture, Tanta University, Tanta, Egypt
| | - Adham A Al-Sagheer
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
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Mazaheri-Tehrani S, Abhari AP, Ostadsharif N, Shekarian A, Vali M, Saffari E, Anaraki KT, Haghighatpanah MA, Fakhrolmobasheri M, Kieliszek M. Serum Selenium Levels and Lipid Profile: A Systematic Review and Meta-analysis of Observational Studies. Biol Trace Elem Res 2025; 203:2517-2538. [PMID: 39256333 DOI: 10.1007/s12011-024-04365-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Accepted: 09/01/2024] [Indexed: 09/12/2024]
Abstract
Selenium is a trace element with pivotal roles in metabolic processes. Studies suggested that selenium deficiency could lead to impaired lipid profiles. However, inconsistent results have been reported regarding the association between serum selenium concentrations and lipid profile (triglycerides, LDL, HDL, VLDL, and total cholesterol). Thus, we aimed to review the correlation between them. A systematic literature search was conducted in PubMed, Embase, Web of Science, Scopus, and Google Scholar until 31 December 2023. The relevant correlation coefficients were used as desired effect sizes to assess the correlation between selenium level and lipid profile. Among 8291 records found in the primary search, 47 and 34 articles were included in the systematic review and meta-analysis, respectively. All included studies were observational investigations and had acceptable quality. Our results failed to reach strong evidence supporting the correlation between serum selenium level and lipid profiles, except for HDL, which showed a weak correlation among both adults (r = 0.1 [0.03:0.17]; I2 = 71%) and pediatrics (r = 0.08 [0.03:0.14]; I2 = 38%). Subgroup analyses based on gender did not reveal a significant or strong correlation with selenium levels (except for total cholesterol in males (r = 0.12 [0.01:0.22]; I2 = 52%)). The results did not change after the sensitivity analysis. Although some previous studies have suggested that selenium deficiency could lead to impaired lipid profile, the findings of this study indicate no strong correlation between serum selenium levels and lipid profile.
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Affiliation(s)
- Sadegh Mazaheri-Tehrani
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran.
- Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Amir Parsa Abhari
- Heart Failure Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Negar Ostadsharif
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Arman Shekarian
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahshad Vali
- School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elahe Saffari
- Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Kasra Talebi Anaraki
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Ali Haghighatpanah
- Department of Cardiovascular Surgery, Chamran Heart Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Fakhrolmobasheri
- Heart Failure Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Marek Kieliszek
- Department of Food Biotechnology and Microbiology, Institute of Food Sciences, Warsaw University of Life Sciences-SGGW, Nowoursynowska 159C, 02-776, Warsaw, Poland.
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Urbano T, Wise LA, Fiore G, Vinceti M, Filippini T. Effects of Selenium Administration on Blood Lipids: A Systematic Review and Dose-Response Meta-Analysis of Experimental Human Studies. Nutr Rev 2025:nuaf049. [PMID: 40243093 DOI: 10.1093/nutrit/nuaf049] [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] [Indexed: 04/18/2025] Open
Abstract
CONTEXT Overexposure to the essential trace element selenium has been associated with adverse metabolic and cardiovascular outcomes, hypertension, and diabetes. However, dose-response meta-analyses analyzing the effects of selenium administration on the lipid profile in experimental human studies are lacking. OBJECTIVE Through a restricted cubic spline regression meta-analysis, the dose-response relation between the dose of selenium administered or blood selenium concentrations at the end of the trials and changes over time in blood lipids, ie, total, high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol, and triglycerides was assessed. DATA SOURCES Searches were performed on PubMed, Web of Science, Embase, and the Cochrane Library from inception up to January 11, 2025 to identify randomized controlled trials (RCTs) investigating the impact of selenium supplementation on blood lipid profiles among adults. DATA EXTRACTION A total of 27 eligible RCTs that enrolled healthy individuals, pregnant individuals, and participants with specific health conditions were identified and the relevant data was extracted. DATA ANALYSIS Dose-response analysis indicated that selenium administration at and above 200 µg/day decreased HDL and LDL cholesterol and increased triglyceride levels. Blood selenium concentrations at the end of the trial above approximately 150 µg/L were positively associated with triglyceride and LDL cholesterol concentrations, and inversely associated with HDL cholesterol. Inorganic selenium supplementation showed stronger associations than organic selenium. At the lowest levels of baseline intake, selenium supplementation appeared instead to have beneficial effects on the lipid profile, with an overall indication of U-shaped curves, apart from HDL-cholesterol. The adverse effects of selenium were stronger in studies involving healthy participants as compared with unhealthy participants and pregnant females, in those having a longer duration of the intervention, particularly more than 3 months, and in European populations at selenium intake levels of above 300 µg/day. CONCLUSIONS In this dose-response meta-analysis of experimental human studies, an adverse effect of selenium administration on blood lipids at levels around or above the current upper level of intake was observed. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration No. CRD42022380432.
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Affiliation(s)
- Teresa Urbano
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Medical School-University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Lauren A Wise
- Department of Epidemiology, Boston University School of Public Health, Boston, MA 02118, United States
| | - Gianluca Fiore
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Medical School-University of Modena and Reggio Emilia, 41125 Modena, Italy
| | - Marco Vinceti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Medical School-University of Modena and Reggio Emilia, 41125 Modena, Italy
- Department of Epidemiology, Boston University School of Public Health, Boston, MA 02118, United States
| | - Tommaso Filippini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN), Department of Biomedical, Metabolic and Neural Sciences, Medical School-University of Modena and Reggio Emilia, 41125 Modena, Italy
- School of Public Health, University of California Berkeley, Berkeley, CA 94704, United States
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Shao K, Yu X, Zhao Y, Zhang Y, Liu X. Semirational Design of SenC to Enhance Organic Selenium Biosynthesis. Microb Biotechnol 2025; 18:e70130. [PMID: 40119861 PMCID: PMC11929427 DOI: 10.1111/1751-7915.70130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2025] [Revised: 03/01/2025] [Accepted: 03/05/2025] [Indexed: 03/24/2025] Open
Abstract
Organic selenium, a bioavailable form of the essential trace element selenium, holds significant potential for improving human health through dietary supplements and functional foods. However, low bioconversion efficiency has primarily limited the biosynthesis of organic selenium compounds. Here, we focused on enhancing the biosynthesis of organic selenium by optimising the expression and activity of two key enzymes, SenB and SenC, involved in the conversion process. We compared several expression systems, including fusion expression and dual-promoter approaches, and optimised reaction conditions such as temperature, pH and incubation time. Our results showed that mutations of SenC more than doubled enzyme activity, resulting in a corresponding rise in the intermediate SeP. Notably, the fusion expression of SenB and SenC exhibited the highest conversion rate of organic selenium, achieving over 95% under optimal conditions. Our findings provide a basis for organic selenium production through microbial biotechnology.
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Affiliation(s)
- Kailin Shao
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology Jiangnan UniversityWuxiJiangsuChina
| | - Xiaobin Yu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology Jiangnan UniversityWuxiJiangsuChina
| | - Yan Zhao
- China Federation Supply & Marketing CooperationJinan Fruit Research InstitutionJinanChina
| | - Ying Zhang
- School of Food Science and Engineering, Shandong Agriculture and Engineering UniversityZiboShandongChina
| | - Xiaobo Liu
- Key Laboratory of Metabolic Engineering and Biosynthesis Technology, Ministry of Industry and Information Technology, Nanjing University of Science and TechnologyNanjingJiangsuChina
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Vinceti M, Mazzoli R, Wise LA, Veneri F, Filippini T. Calling for a comprehensive risk assessment of selenium in drinking water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2025; 966:178700. [PMID: 39923476 DOI: 10.1016/j.scitotenv.2025.178700] [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: 01/04/2025] [Revised: 01/29/2025] [Accepted: 01/30/2025] [Indexed: 02/11/2025]
Abstract
In the last two decades, research has elucidated that selenium, a trace element, has both nutritional and toxicological effects on human health, depending on its dose and chemical form. Recent animal, laboratory, and human studies have shown harmful effects of certain selenium species at specific exposure levels, prompting the need to reassess overall exposure to this element, including that occurring through drinking water, a primary source of inorganic selenium. Drinking water selenium standards worldwide are scarce and existing standards are inconsistent, likely because they have been informed by an incomplete and outdated assessment of the scientific evidence. Incorporating all the available human and laboratory evidence into a precautionary regulatory framework indicates that a drinking water limit of around 5 μg/L of selenium is needed to protect human health, i.e. with an uncertainty factor of 2 versus the lowest adverse effect level observed in human studies, and that higher values may pose unacceptable risks to humans. Despite the rarity of such high levels of selenium in underground and potable waters, coal mining and other sources of environmental pollution as well as geological factors may raise drinking water selenium content above a safe threshold, triggering the need to protect consumers, and to face challenging technological issues for selenium removal, currently under active investigation.
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Affiliation(s)
- Marco Vinceti
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia Medical School, Modena, Italy; Department of Epidemiology, School of Public Health, Boston University, Boston, MA, United States of America.
| | - Riccardo Mazzoli
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia Medical School, Modena, Italy
| | - Lauren A Wise
- Department of Epidemiology, School of Public Health, Boston University, Boston, MA, United States of America
| | - Federica Veneri
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia Medical School, Modena, Italy; Unit of Dentistry and Oral-Maxillo-Facial Surgery, University of Modena and Reggio Emilia, Modena, Italy
| | - Tommaso Filippini
- CREAGEN - Environmental, Genetic and Nutritional Epidemiology Research Center, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia Medical School, Modena, Italy; Department of Epidemiology, School of Public Health, University of California Berkeley, Berkeley, CA, United States of America
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Hajhashemy Z, Foshati S, Bagherniya M, Askari G. The association between blood selenium and metabolic syndrome in adults: a systematic review and dose-response meta-analysis of epidemiologic studies. Front Nutr 2025; 11:1451342. [PMID: 39882034 PMCID: PMC11775477 DOI: 10.3389/fnut.2024.1451342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Accepted: 11/19/2024] [Indexed: 01/31/2025] Open
Abstract
Background and aim Although the relationship between selenium and metabolic syndrome (MetS) was previously investigated, the findings were inconsistent. Therefore, we performed a systematic review and dose-response meta-analysis to summarize the association between blood selenium and MetS in adults. Methods A comprehensive search was conducted in Medline (PubMed), ISI Web of Science, Scopus, and motor engineering of Google Scholar up to October 1st, 2024. Observational studies which reported the risk of MetS in relation to blood selenium in adults were included. The protocol of the current analysis was registered at PROSPERO as CRD42024486035. Results Overall, 16,779 participants and 6,471 cases with MetS from 5 cross-sectional and 7 case-control studies were included in the current systematic review and meta-analysis. The findings showed that participants with the highest blood values of selenium (mean: 268.5 μg/L) in comparison to those with the lowest values (mean: 75.27 μg/L) had 40% higher risk of MetS. Nevertheless, this association was not significant (95%CI: 0.99-1.97). Due to a significant between-study heterogeneity (I2 = 90.4%, p < 0.001), subgroup analysis was conducted based on potential confounders. However, this association was only significant in a few subgroups with low number effect sizes. Linear dose-response analysis illustrated each 50 μg/L increment in circulating selenium was related to 7% higher risk of MetS (RR: 1.07, 95%CI: 0.99, 1.15) However, this association was not statistically significant. Additionally, non-linear dose-response analysis indicated a U-shaped association between blood selenium and risk of MetS with the lowest risk at 160 ug/L of blood selenium (p < 0.001). Conclusion There is a U-shaped relationship between blood selenium levels risk of MetS. However, more longitudinal studies are needed to verify the causality of findings and clarify the underlying mechanisms.
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Affiliation(s)
- Zahra Hajhashemy
- Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Sahar Foshati
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Bagherniya
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gholamreza Askari
- Nutrition and Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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Li B, Ma H, Yu Y, Chen J, He S, Yang L. Exploring the potential association between serum selenium and hypertension in obese adult males in the United States. Sci Rep 2025; 15:1268. [PMID: 39779781 PMCID: PMC11711189 DOI: 10.1038/s41598-025-85343-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Accepted: 01/02/2025] [Indexed: 01/11/2025] Open
Abstract
Previous studies on the correlation between serum selenium and hypertension have yielded inconsistent results. Our previous analysis of participants from the National Health and Nutrition Examination Survey (NHANES) 2011-2018 indicated that elevated serum selenium concentrations were associated with an increased risk of metabolic abnormalities in obese individuals, with the primary effect being on blood pressure in males. The aim of this study was to further elucidate the relationship between serum selenium and the risk of hypertension in obese males. In this study, we examined the correlation between serum selenium concentrations and hypertension in 2,585 male participants with a body mass index (BMI) ≥ 30 kg/m2 aged between 20 and 80 years from the 2011-2018 NHANES database. The associations between serum selenium levels and hypertension were evaluated through weighted generalized linear regression analyses. To examine the saturation threshold effect between serum selenium and hypertension, a generalized additive model (GAM) and a two-piecewise linear regression model were employed. Furthermore, the saturation threshold effect was evaluated separately in subgroups stratified by BMI and age. The weighted prevalence of hypertension (51.84%) was slightly higher than that of nonhypertension (48.16%) in the participants included in this study. After rigorous adjustment for sociodemographic, physical, and laboratory test covariates, the weighted odds ratio (OR) of hypertension increased by 103% for every 1 standard deviation (SD) increase (approximately 24.41 µg) in the serum selenium concentration in participants assigned to the highest serum selenium group (weighted OR = 2.03; 95% CI = 1.24-3.32; P = 0.013). A calculation was subsequently performed to determine the saturation threshold effect of selenium on hypertension among participants in the medium and highest selenium concentration subgroups. The findings indicated that participants with serum selenium concentrations exceeding the saturation threshold (2.56 µM) demonstrated an elevated risk of developing hypertension (weighted OR = 9.58; 95% CI = 2.74-33.46; P = 0.000) in comparison to those with serum selenium concentrations below the threshold. Subgroup analyses demonstrated that serum selenium concentrations exceeding the saturation threshold were associated with an increased risk of hypertension in participants with a BMI ≤ 35 kg/m2 (weighted OR = 9.11; 95% CI = 1.43-58.24; P = 0.030) or those aged less than 55 years or younger (weighted OR = 8.37; 95% CI = 1.71-40.94; P = 0.014). For obese adult males who require additional selenium supplementation to enhancing their overall health and well-being, it is strongly recommended that the serum selenium concentrations be monitored throughout the course of supplementation to ensure that they remain within the relatively safe range (approximately less than 215.75 µg/L).
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Affiliation(s)
- Bei Li
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Haiyan Ma
- Department of Urology, Shenzhen Children's Hospital, Shenzhen, 518026, People's Republic of China
| | - Ying Yu
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Jieli Chen
- Department of Gastrointestinal Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, People's Republic of China
| | - Shengnan He
- Department of Breast and Thyroid Surgery of Shenzhen Second People's Hospital, Health Science Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, People's Republic of China
| | - Lan Yang
- Department of Gastroenterology of Shenzhen Second People's Hospital, Health Science Center, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518035, People's Republic of China.
- Shenzhen Second People's Hospital, Health Science Center, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, 518035, People's Republic of China.
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Tan Y, Zhang Z, Yang J, Wang L, Sun G, Guo Y, Xiang Y, Zou Y, Song X, Li M, Huang C. High-selenium exposure is associated with modulation of serum lipid metabolism. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2025; 289:117677. [PMID: 39793284 DOI: 10.1016/j.ecoenv.2025.117677] [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: 02/03/2024] [Revised: 12/15/2024] [Accepted: 01/02/2025] [Indexed: 01/13/2025]
Abstract
At present, there is no consensus on the relationship between selenium (Se) exposure and human serum lipid metabolism. The etiological role of high-Se exposure in lipid markers, dyslipidemia, and nonalcoholic fatty liver (NAFLD) remains unclear. We used serum untargeted metabolomics analysis to evaluate whether high-Se exposure is cross-sectionally associated with lipid metabolism in adults from high-Se exposure area (n = 112) and control area (n = 101) in Hubei Province, China. An untargeted liquid chromatography/mass spectrometry (LC/MS)-based metabolomic analysis identified 144 differential pathways and yielded 204 differentially abundant metabolites, including 32 lipid metabolites associated with lipids profiles. To further explore the correlation between Se exposure and serum lipid metabolism, we measured serum levels of lipid profiles among all the people, including serum cholesterol (CHOL), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and apolipoprotein B (APOB). The average serum Se level of the high-Se exposure group was 537.18 μg/L, significantly higher than 72.98 μg/L in the control group (p < 0.0001). The measurement levels of serum TG, LDL-C, HDL-C, and APOB in the high-Se exposure group were 1.03 (0.76, 1.34) mmol/L, 2.25 ± 0.48 mmol/L, 1.12 ± 0.24 mmol/L, and 0.77 ± 0.15 g/L, respectively, while the control group were 1.13 (0.84, 1.80) mmol/L, 2.56 ± 0.61 mmol/L, 1.02 ± 0.22 mmol/L, and 0.83 ± 0.16 g/L, respectively (all p values <0.05). Correlation analysis showed a significant negative correlation between serum Se and CHOL (r = -0.201, p < 0.01), serum Se is also associated with metabolomics markers, the negative correlation includes glyceric acid and ect., the positive correlation includes phosphorylcholine and ect. Our study suggests that high-Se exposure is negatively associated with serum lipid profiles and decreases the risk of high-TC and HDL-C dyslipidemia.
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Affiliation(s)
- Yong Tan
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Zixiong Zhang
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Jinru Yang
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Li Wang
- Department of Dermatology, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China
| | - Guogen Sun
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Yishan Guo
- Department of Cardiology, Binzhou Medical University Hospital, Binzhou 256600, China
| | - Ying Xiang
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Yi Zou
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Xiusheng Song
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China
| | - Minglong Li
- School of Forestry and Horticulture, Hubei Minzu University, Enshi 445000, China.
| | - Chuying Huang
- Hubei Selenium and Human Health Institute, the Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China; Hubei Provincial Key Lab of Selenium Resources and Bioapplications, Enshi 445000, China.
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Letsiou S, Damigou E, Nomikos T, Pergantis SA, Pitsavos C, Panagiotakos D, Antonopoulou S. Deciphering the associations of selenium distribution in serum GPx-3 and selenoprotein P with cardiovascular risk factors in a healthy population with moderate levels of selenium: The ATTICA study. J Trace Elem Med Biol 2024; 86:127509. [PMID: 39190954 DOI: 10.1016/j.jtemb.2024.127509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 08/14/2024] [Accepted: 08/14/2024] [Indexed: 08/29/2024]
Abstract
BACKGROUND Selenium (Se) is an essential micronutrient, important for human health. The relationship of Se with cardiovascular risk factors is still inconclusive, especially regarding the role of different selenoproteins. The present study evaluated the relation of total serum Se as well as its distribution in plasma selenoproteins, namely glutathione peroxidase 3 (GPx3) and selenoprotein P (SelP) with cardiovascular risk factors in a sex-specific manner, in a healthy population with moderate levels of Se. METHODS A sub-sample from the ATTICA Study's database, consisting of 398 participants (160 females and 238 males) with data on Se and selenoproteins levels, was considered. GPx3, SelP and the main non-specific serum selenium containing protein, selenoalbumin (SeAlb) were simultaneously determined in human plasma by high-performance liquid chromatography (HPLC) coupled with inductively coupled plasma mass spectrometry (ICP-MS) at baseline. RESULTS Participants that belong to the highest tertiles of GPx3 and SelP presented the lowest blood pressure. Homocysteine was inversely associated with SelP and its ratio SelP/TSe in both sexes. In males, the lowest tertile of GPx3 showed lower adiponectin levels (0.66 ± 0.21 μg/mL) in comparison to the 2nd tertile of GPx3 (p=0.002), SelP was inversely associated with visceral adipose index (VAI) (-2.29 ± 0.81, p=0.005). Particularly, in males, the middle tertile of SelP had the lowest VAI values. Regarding females, lower Lp(a) concentration by 11.96 ± 5.84 mg/dL was observed in low SelP levels while higher leptin concentration by 2.30 ± 0.73 μg/L and lower fibrinogen concentration by 27.32 ± 13.30 mg/dL was detected in low GPx3 levels. CONCLUSION Circulating selenoproteins exert differentiated effects on cardiovascular risk factors, some of them in a sex-specific manner.
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Affiliation(s)
- Sophia Letsiou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Evangelia Damigou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Tzortzis Nomikos
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | | | - Christos Pitsavos
- First Cardiology Clinic, Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Demosthenes Panagiotakos
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece
| | - Smaragdi Antonopoulou
- Department of Nutrition and Dietetics, School of Health Sciences and Education, Harokopio University, Athens, Greece.
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10
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Zhang X, Miao J, Song Y, Miao M. The Effects of Okra Consumption on Glycemic Parameters and Lipid Profile in Adults: A Systematic Review and Meta-Analysis. Food Sci Nutr 2024; 12:10049-10058. [PMID: 39723095 PMCID: PMC11666828 DOI: 10.1002/fsn3.4599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2024] [Revised: 10/04/2024] [Accepted: 10/27/2024] [Indexed: 12/28/2024] Open
Abstract
The clinical research findings on the effects of okra consumption on blood glucose and lipids are inconsistent. In this study, we aimed to explore the impact of okra consumption on glycemic parameters and lipid profile in adults, including homeostatic model assessment for insulin resistance (HOMA-IR), glycosylated hemoglobin A1c (HbA1c), fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C). To find relevant randomized controlled trials (RCTs), we systemically searched EMBASE, Web of Science, PubMed, Cochrane Library, and Scopus until April 2024. According to the inclusion and exclusion criteria, eight studies involving 521 participants were ultimately included in the present study. Compared to placebo, okra consumption remarkably decreased FBG (WMD: -32.56 mg/dL; 95% CI: -48.83, -16.28; p < 0.001; I 2 = 84.7%), HbA1c (WMD: -0.48%; 95% CI: -0.81, -0.16; p = 0.004; I 2 = 5.5%), TG (WMD: -13.16 mg/dL; 95% CI: -23.54, -2.77; p = 0.013; I 2 = 0.0%), and TC (WMD: -9.70 mg/dL; 95% CI: -14.95, -4.46; p < 0.001; I 2 = 38.3%) in adults. However, okra showed no notable impact on HOMA-IR, HDL-C, and LDL-C. Okra consumption has an improving effect on adult FBG, HbA1c, TG, and TC levels. More large-scale RCT studies are necessary to validate the beneficial effects of okra on adults due to the limited number of included RCTs. Trial Registration: PROSPERO: CRD42024540121.
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Affiliation(s)
- Xiaolei Zhang
- Academy of Chinese Medical SciencesHenan University of Chinese MedicineZhengzhouChina
| | - Jinxin Miao
- Academy of Chinese Medical SciencesHenan University of Chinese MedicineZhengzhouChina
| | - Yagang Song
- Academy of Chinese Medical SciencesHenan University of Chinese MedicineZhengzhouChina
- Henan Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu‐YaoHenan University of Chinese MedicineZhengzhouChina
| | - Mingsan Miao
- Academy of Chinese Medical SciencesHenan University of Chinese MedicineZhengzhouChina
- Henan Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu‐YaoHenan University of Chinese MedicineZhengzhouChina
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11
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Marhamati S, Younesian O, Mir SM, Hosseinzadeh S, Joshaghani HR, Hesari Z. The effects of high doses of selenium supplementation on mRNA and protein levels of cMLCK levels and total antioxidant capacity in rat heart tissue. Food Chem Toxicol 2024; 191:114886. [PMID: 39059692 DOI: 10.1016/j.fct.2024.114886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/21/2024] [Accepted: 07/22/2024] [Indexed: 07/28/2024]
Abstract
BACKGROUND High doses of selenium are associated with heart disease prevalence in high-risk areas. Cardiac myosin light chain kinase (cMLCK) is an essential enzyme for normal function of heart tissue. Therefore, we studied the effect of high doses of selenium on the expression of cMLCK gene and its protein in normal heart tissue in rats. MATERIALS AND METHODS Twenty male rats were randomly divided into four groups: control, Se 0.3mg/kg, Se 1.5mg/kg, and Se 3mg/kg. Sodium-selenite was administered orally into drinking water for 20 weeks. Se levels of heart tissue were measured by atomic absorption. Serum creatine phosphokinase (CPK) and total serum antioxidant capacity were measured. Moreover, the concentration of MLCK protein and the gene expression level of cMLCK in normal heart tissue were analyzed. RESULTS Excess Se in dietary can significantly increase CPK. Se concentration of heart tissue in the Se 3mg/kg group was significantly higher than the control. cMLCK mRNA levels were decreased by 0.3mg/kg and 3mg/kg sodium selenite intake. There was no significant difference between the three groups for total antioxidant capacity and MLCK protein. CONCLUSION High concentrations of selenium can probably effect on normal function of the heart tissue by changing the expression levels of cMLCK.
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Affiliation(s)
- Shayan Marhamati
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | | | - Seyed Mostafa Mir
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Sara Hosseinzadeh
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran
| | - Hamid Reza Joshaghani
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
| | - Zahra Hesari
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran.
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12
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Du G, Song X, Zhou F, Ouyang L, Li Q, Ruan S, Su R, Rao S, Zhu Y, Xie J, Feng C, Fan G. Association Between Multiple Metal(loid)s Exposure and Blood Lipid Levels: Evidence from a Cross-Sectional Study of Southeastern China. Biol Trace Elem Res 2024; 202:3483-3495. [PMID: 37991670 DOI: 10.1007/s12011-023-03951-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/01/2023] [Indexed: 11/23/2023]
Abstract
Exposure to essential and toxic metals occurs simultaneously as a mixture in real-life. However, there is no consensus regarding the effects of co-exposure to multiple metal(loid)s (designated hereafter metals) on blood lipid levels. Thus, blood concentrations of six human essential metals and five toxic metals in 720 general populations from southeastern China were simultaneously determined as a measure of exposure. In addition, quantile g-computation, Bayesian kernel machine regression, elastic net regression, and generalized linear model were used to investigate both the joint and individual effects of exposure to this metal mixture on human blood lipid levels. The significant positive joint effect of exposure to this metal mixture on serum total cholesterol (TC) levels, rather than on serum triglycerides, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol, Castelli risk index I, Castelli risk index II, atherogenic coefficient, and non-HDL-C levels, was found. In addition, the positive effect may be primarily driven by selenium (Se), lead (Pb), and mercury (Hg) exposure. In addition, on the effect of TC levels, the synergistic effect between Pb and Hg and the antagonistic effect between Se and Pb were identified. Our finding suggests that combined exposure to this metal mixture may affect human blood lipid levels. Therefore, reducing exposure to heavy metals, such as Pb and Hg, should be a priority for the general population. In addition, Se supplementation should also be considered with caution.
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Affiliation(s)
- Guihua Du
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Xiaoguang Song
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Institute of Environmental Health, Jiangxi Province Center for Disease Control and Prevention, Nanchang, 330046, People's Republic of China
| | - Fankun Zhou
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Lu Ouyang
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Qi Li
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Shiying Ruan
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- The First Affiliated Hospital of Nanchang University, Nanchang, 330006, People's Republic of China
| | - Rui Su
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Shaoqi Rao
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Yanhui Zhu
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Jie Xie
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Chang Feng
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China
| | - Guangqin Fan
- Department of Occupational Health and Toxicology, School of Public Health, Nanchang University, Nanchang, 330006, People's Republic of China.
- Jiangxi Provincial Key Laboratory of Preventive Medicine, Nanchang University, Nanchang, 330006, People's Republic of China.
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13
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Wang P, Chen B, Huang Y, Li J, Cao D, Chen Z, Li J, Ran B, Yang J, Wang R, Wei Q, Dong Q, Liu L. Selenium intake and multiple health-related outcomes: an umbrella review of meta-analyses. Front Nutr 2023; 10:1263853. [PMID: 37781125 PMCID: PMC10534049 DOI: 10.3389/fnut.2023.1263853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 08/28/2023] [Indexed: 10/03/2023] Open
Abstract
Selenium is an essential trace metalloid element that is associated with fundamental importance to human health. Our umbrella review aimed to evaluate the quality of evidence, validity, and biases in the relationship between selenium intake and health-related outcomes according to published systematic reviews with pooled data and meta-analyses. Selenium intake is associated with a decreased risk of digestive system cancers, all-cause mortality, depression, and Keshan disease, when in children reduce the risk of Kashin-Beck disease. Additionally, selenium supplementation can improve sperm quality, polycystic ovary syndrome, autoimmune thyroid disease, cardiovascular disease, and infective outcomes. Selenium supplementation also has relationship with a decreased concentration of serum lipids including total cholesterol and very low-density lipoprotein cholesterol. However, no evidence has shown that selenium is associated with better outcomes among patients in intensive care units. Furthermore, selenium intake may be related with a higher risk of type 2 diabetes and non-melanoma skin cancers. Moreover, most of included studies are evaluated as low quality according to our evidence assessment. Based on our study findings and the limited advantages of selenium intake, it is not recommended to receive extra supplementary selenium for general populations, and selenium supplementation should not be continued in patients whose selenium-deficient status has been corrected.
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Affiliation(s)
- Puze Wang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Bo Chen
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Yin Huang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Li
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Dehong Cao
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Zeyu Chen
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jinze Li
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Biao Ran
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiahao Yang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Ruyi Wang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
- Department of Urology, Hospital of Chengdu University, Chengdu, China
| | - Qiang Wei
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Qiang Dong
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Liangren Liu
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
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Cakmak S, Mitchell K, Lukina A, Dales R. Do blood metals influence lipid profiles? Findings of a cross-sectional population-based survey. ENVIRONMENTAL RESEARCH 2023; 231:116107. [PMID: 37187310 DOI: 10.1016/j.envres.2023.116107] [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: 03/15/2023] [Revised: 05/09/2023] [Accepted: 05/10/2023] [Indexed: 05/17/2023]
Abstract
Dyslipidemia, an imbalance of lipids and a major risk factor for cardiovascular disease, has been associated with elevated blood and urine levels of several heavy metals. Using data from a Canadian Health Measures Survey (CHMS), we tested associations between blood levels of cadmium, copper, mercury, lead, manganese, molybdenum, nickel, selenium, and zinc, and the lipids triglycerides (TG), total cholesterol (TC), low density lipoproteins (LDL), high density lipoproteins (HDL) and apolipoproteins A1 (APO A1), and B (APO B). All adjusted associations between single metals and lipids were positive and significant, except for APO A1 and HDL. The joint effect of an interquartile range increase in heavy metals was positively associated with percentage increases of TC, LDL and APO B of 8.82% (95%CI: 7.06, 10.57), 7.01% (95%CI: 2.51, 11.51) and 7.15% (95%CI: 0.51, 13.78), respectively. Future studies are warranted to determine if reducing environmental exposure to heavy metals favorably influences lipid profiles and the risk of cardiovascular disease.
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Affiliation(s)
- Sabit Cakmak
- Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Kimberly Mitchell
- Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Anna Lukina
- Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada
| | - Robert Dales
- Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario, Canada.
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15
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Rahnama I, Arabi SM, Chambari M, Bahrami LS, Hadi V, Mirghazanfari SM, Rizzo M, Hadi S, Sahebkar A. The effect of Spirulina supplementation on lipid profile: GRADE-assessed systematic review and dose-response meta-analysis of data from randomized controlled trials. Pharmacol Res 2023; 193:106802. [PMID: 37263369 DOI: 10.1016/j.phrs.2023.106802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/12/2023] [Accepted: 05/22/2023] [Indexed: 06/03/2023]
Abstract
BACKGROUND Cardiovascular diseases (CVD) are one of the most important causes of death worldwide. Dyslipidemia is one of the main causal risk factors for CVD that can be controlled by modifying lifestyle, which entails the use of healthy diets containing functional foods. The present study was conducted to summarize the effects of Spirulina on the lipid profile in previous randomized controlled trials. METHODS MEDLINE, Scopus, Clarivate Analytics Web of Science, and the Cochrane Library databases were searched systematically until January 2023, for clinical interventions that investigated the effect of Spirulina supplementation on plasma lipid profile concentrations. RESULTS ooled results of 20 studies (with 23 arms and 1076 participants) indicated that Spirulina intervention significantly reduced LDL-C (SMD: -0.6, 95% CI: -0.9, -0.2, P<0.05), TC (SMD: -0.6, 95% CI: -0.9, -0.2, P<0.05) and TG (SMD: -0.6, 95% CI: -0.9, -0.2, P<0.05) levels while HDL-C levels were significantly increased (SMD: 0.3, 95% CI: 0.0, 0.6, P<0.05). CONCLUSIONS The findings of the present meta-analysis and review show the usefulness of supplementing with Spirulina in improving serum levels of TC, TG, LDL-C, and HDL-C.
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Affiliation(s)
- Iman Rahnama
- Department of Health and Nutrition, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Seyyed Mostafa Arabi
- Healthy Ageing Research Centre, Neyshabur University of Medical Sciences, Neyshabur, Iran; Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Mahla Chambari
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Leila Sadat Bahrami
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran; Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Vahid Hadi
- Department of Health and Nutrition, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Sayid Mahdi Mirghazanfari
- Department of Physiology and Iranian Medicine, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Manfredi Rizzo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, School of Medicine, University of Palermo, 90133 Palermo, Italy
| | - Saeid Hadi
- Department of Health and Nutrition, Faculty of Medicine, AJA University of Medical Sciences, Tehran, Iran.
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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16
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Zamani M, Kelishadi MR, Ashtary-Larky D, Amirani N, Goudarzi K, Torki IA, Bagheri R, Ghanavati M, Asbaghi O. The effects of green tea supplementation on cardiovascular risk factors: A systematic review and meta-analysis. Front Nutr 2023; 9:1084455. [PMID: 36704803 PMCID: PMC9871939 DOI: 10.3389/fnut.2022.1084455] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/16/2022] [Indexed: 01/12/2023] Open
Abstract
Purpose A bulk of observational studies have revealed the protective role of green tea supplementation in cardiovascular diseases. The current systematic review and meta-analysis study aimed to establish the effects of green tea supplementation on cardiovascular risk factors including lipid profile, blood pressure, glycemic control markers and CRP. Methods A systematic literature search of randomized clinical trials (RCTs) that investigated the effects of green tea supplementation and cardiovascular risk factors was undertaken in online databases including PubMed/Medline, Scopus, Web of Science, and Embase using a combination of green tea and cardiovascular risk factors search terms. Meta-analyses were carried out using a random-effects model. The I2 index was used to assess the heterogeneity of RCTs. Results Among the initial 11,286 studies that were identified from electronic databases search, 55 eligible RCTs with 63 effect sizes were eligible. Results from the random effects meta-analysis showed that GTE supplementation significantly reduced TC (WMD = -7.62; 95% CI: -10.51, -4.73; P = < 0.001), LDL-C (WMD = -5.80; 95% CI: -8.30, -3.30; P = < 0.001), FBS (WMD = -1.67; 95% CI: -2.58, -0.75; P = < 0.001), HbA1c (WMD = -0.15; 95% CI: -0.26, -0.04; P = 0.008), DBP (WMD = -0.87; 95% CI: -1.45, -0.29; P = 0.003), while increasing HDL-C (WMD = 1.85; 95% CI: 0.87, 2.84; P = 0.010). Subgroup analyses based on the duration of supplementation (≥ 12 vs. < 12 weeks), dose of green tea extract (GTE) (≥1,000 vs. < 1,000 mg/d), sex (male, female, and both), baseline serum levels of lipid profile, and glycemic control factors demonstrated different results for some risk factors. Conclusion The current study suggests improvements in the lipid and glycemic profiles following green tea supplementation. These findings support previous evidence showing the health benefits of green tea supplementation on cardiometabolic risk factors.
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Affiliation(s)
- Mohammad Zamani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Rezaei Kelishadi
- Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Damoon Ashtary-Larky
- Nutrition and Metabolic Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Niusha Amirani
- Faculty of Medicine, Alborz University of Medical Sciences, Tehran, Iran
| | - Kian Goudarzi
- Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Reza Bagheri
- Department of Exercise Physiology, University of Isfahan, Isfahan, Iran
| | - Matin Ghanavati
- National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Omid Asbaghi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Detopoulou P, Letsiou S, Nomikos T, Karagiannis A, Pergantis SA, Pitsavos C, Panagiotakos DB, Antonopoulou S. Selenium, Selenoproteins and 10-year Cardiovascular Risk: Results from the ATTICA Study. Curr Vasc Pharmacol 2023; 21:346-355. [PMID: 37526183 DOI: 10.2174/1570161121666230731142023] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 05/05/2023] [Accepted: 06/22/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Selenium (Se) is an essential trace element that is involved in several pathophysiological functions. The relationship of Se with cardiovascular disease remains inconclusive, especially regarding the role of different selenospecies. OBJECTIVE The present study assessed the levels of Se distribution in plasma selenoproteins, namely glutathione peroxidase 3 (GPx3), selenoprotein P (SelP) and selenoalbumin (SeAlb) and total Se in selenoproteins in relation to 10-year cardiovascular risk in the ATTICA prospective study. METHODS A sub-sample from the ATTICA Study's database, consisting of 278 subjects (114 women and 164 men) with data on Se and selenoproteins levels, was considered. SeGPx3, SelP, and SeAlb in human plasma were simultaneously determined by high-performance liquid chromatography (HPLC) coupled with inductively coupled plasma mass spectrometry (ICP-MS) at baseline. The duration of the follow-up was 8.74 ±2.36 years (mean± standard deviation) and cardiovascular outcomes were recorded. Cox proportional hazards models were applied with total Se or selenoprotein Se as independent variables adjusted for several covariates. RESULTS Total Se in selenoproteins was positively related to 10-year relative risk of cardiovascular disease (Hazard Ratios of 3rd vs 2nd tertile 10.02, 95% CI:1.15, 92.34). Subjects with high Se but low SeGPx3, as identified by discordant percentiles in the distribution of SeGPx3 and Se, had a higher cardiovascular risk. CONCLUSION The differentiated effects of circulating selenoproteins on cardiovascular disease risk in the present study, suggest the importance of redox regulation by specific selenoproteins.
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Affiliation(s)
- Paraskevi Detopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Sophia Letsiou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Tzortzis Nomikos
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Alexandros Karagiannis
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | | | - Christos Pitsavos
- First Cardiology Clinic, Medical School, National and Kapodistrian University of Athens, Hippokration Hospital, Athens, Greece
| | - Demosthenes B Panagiotakos
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
| | - Smaragdi Antonopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Athens, Greece
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