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Li W, Wang Y, Li J, Guo X, Song Q, Xu J. Selenite improves growth by modulating phytohormone pathways and reprogramming primary and secondary metabolism in tomato plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 214:108930. [PMID: 39013356 DOI: 10.1016/j.plaphy.2024.108930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 05/10/2024] [Accepted: 07/09/2024] [Indexed: 07/18/2024]
Abstract
Selenium (Se) is an essential micronutrient in organisms that has a significant impact on physiological activity and gene expression in plants, thereby affecting growth and development. Humans and animals acquire Se from plants. Tomato (Solanum lycopersicum L.) is an important vegetable crop worldwide. Improving the Se nutrient level not only is beneficial for growth, development and stress resistance in tomato plants but also contributes to improving human health. However, the molecular basis of Se-mediated tomato plant growth has not been fully elucidated. In this study, using physiological and transcriptomic analyses, we investigated the effects of a low dosage of selenite [Se(Ⅳ)] on tomato seedling growth. Se(IV) enhanced the photosynthetic efficiency and increased the accumulation of soluble sugars, dry matter and organic matter, thereby promoting tomato plant growth. Transcriptome analysis revealed that Se(IV) reprogrammed primary and secondary metabolic pathways, thus modulating plant growth. Se(IV) also increased the concentrations of auxin, jasmonic acid and salicylic acid in leaves and the concentration of cytokinin in roots, thus altering phytohormone signaling pathways and affecting plant growth and stress resistance in tomato plants. Furthermore, exogenous Se(IV) alters the expression of genes involved in flavonoid biosynthesis, thereby modulating plant growth and development in tomato plants. Taken together, these findings provide important insights into the regulatory mechanisms of low-dose Se(IV) on tomato growth and contribute to the breeding of Se-accumulating tomato cultivars.
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Affiliation(s)
- Weimin Li
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China
| | - Yanli Wang
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China
| | - Junjun Li
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China
| | - Xiaoyu Guo
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China
| | - Qianqian Song
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China
| | - Jin Xu
- College of Horticulture, Shanxi Agricultural University, Taigu, 030801, China; Shanxi Key Laboratory of Germplasm Resources Innovation and Utilization of Vegetable and Flower, Taiyuan, 030031, China.
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Perri G, Mathers JC, Martin-Ruiz C, Parker C, Walsh JS, Eastell R, Demircan K, Chillon TS, Schomburg L, Robinson L, Hill TR. Selenium status and its determinants in very old adults: insights from the Newcastle 85+ Study. Br J Nutr 2024; 131:901-910. [PMID: 37877251 PMCID: PMC10864996 DOI: 10.1017/s0007114523002398] [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: 06/27/2023] [Revised: 10/08/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023]
Abstract
There is a dearth of data on Se status in very old adults. The aims of this study were to assess Se status and its determinants in 85-year-olds living in the Northeast of England by measuring serum Se and selenoprotein P (SELENOP) concentrations and glutathione peroxidase 3 (GPx3) activity. A secondary aim was to examine the interrelationships between each of the biomarkers. In total, 757 participants (463 women, 293 men) from the Newcastle 85+ Study were included. Biomarker concentrations were compared with selected cut-offs (serum Se: suboptimal 70 µg/l and deficient 45 µg/l; SELENOP: suboptimal 4·5 mg/l and deficient 2·6 mg/l). Determinants were assessed using linear regressions, and interrelationships were assessed using restricted cubic splines. Median (inter-quartile range) concentrations of serum Se, SELENOP and of GPx3 activity were 53·6 (23·6) µg/l, 2·9 (1·9) mg/l and 142·1 (50·7) U/l, respectively. Eighty-two percentage and 83 % of participants had suboptimal serum Se (< 70 µg/l) and SELENOP (< 4·5 mg/l), and 31 % and 40 % of participants had deficient serum Se (< 45 µg/l) and SELENOP (< 2·6 mg/l), respectively. Protein intake was a significant determinant of Se status. Additional determinants of serum Se were sex, waist:hip ratio, self-rated health and disease, while sex, BMI and physical activity were determinants of GPx3 activity. There was a linear association between serum Se and SELENOP, and nonlinear associations between serum Se and GPx3 activity and between SELENOP and GPx3 activity. These findings indicate that most participants had suboptimal Se status to saturate circulating SELENOP.
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Affiliation(s)
- Giorgia Perri
- Human Nutrition and Exercise Research Centre, Centre for Healthier Lives, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
- MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
| | - John C. Mathers
- Human Nutrition and Exercise Research Centre, Centre for Healthier Lives, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
- MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
| | - Carmen Martin-Ruiz
- BioScreening Core Facility, Campus for Ageing and Vitality, Newcastle University, Newcastle upon TyneNE4 5PL, UK
| | - Craig Parker
- BioScreening Core Facility, Campus for Ageing and Vitality, Newcastle University, Newcastle upon TyneNE4 5PL, UK
| | - Jennifer S. Walsh
- MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
- Department of Oncology and Metabolism, University of Sheffield, SheffieldS5 7AU, UK
| | - Richard Eastell
- MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
- Department of Oncology and Metabolism, University of Sheffield, SheffieldS5 7AU, UK
| | - Kamil Demircan
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Berlin10115, Germany
| | - Thilo S. Chillon
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Berlin10115, Germany
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, Berlin10115, Germany
| | - Louise Robinson
- Human Nutrition and Exercise Research Centre, Centre for Healthier Lives, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
| | - Tom R. Hill
- Human Nutrition and Exercise Research Centre, Centre for Healthier Lives, Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
- MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Faculty of Medical Sciences, Newcastle University, Newcastle upon TyneNE2 4HH, UK
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Zhou Y, Yuan S, Xiao F, Li H, Ye Z, Cheng T, Luo C, Tang K, Cai J, Situ J, Sridhar S, Chu WM, Tam AR, Chu H, Che CM, Jin L, Hung IFN, Lu L, Chan JFW, Sun H. Metal-coding assisted serological multi-omics profiling deciphers the role of selenium in COVID-19 immunity. Chem Sci 2023; 14:10570-10579. [PMID: 37799995 PMCID: PMC10548515 DOI: 10.1039/d3sc03345g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 08/02/2023] [Indexed: 10/07/2023] Open
Abstract
Uncovering how host metal(loid)s mediate the immune response against invading pathogens is critical for better understanding the pathogenesis mechanism of infectious disease. Clinical data show that imbalance of host metal(loid)s is closely associated with the severity and mortality of COVID-19. However, it remains elusive how metal(loid)s, which are essential elements for all forms of life and closely associated with multiple diseases if dysregulated, are involved in COVID-19 pathophysiology and immunopathology. Herein, we built up a metal-coding assisted multiplexed serological metallome and immunoproteome profiling system to characterize the links of metallome with COVID-19 pathogenesis and immunity. We found distinct metallome features in COVID-19 patients compared with non-infected control subjects, which may serve as a biomarker for disease diagnosis. Moreover, we generated the first correlation network between the host metallome and immunity mediators, and unbiasedly uncovered a strong association of selenium with interleukin-10 (IL-10). Supplementation of selenium to immune cells resulted in enhanced IL-10 expression in B cells and reduced induction of proinflammatory cytokines in B and CD4+ T cells. The selenium-enhanced IL-10 production in B cells was confirmed to be attributable to the activation of ERK and Akt pathways. We further validated our cellular data in SARS-CoV-2-infected K18-hACE2 mice, and found that selenium supplementation alleviated SARS-CoV-2-induced lung damage characterized by decreased alveolar inflammatory infiltrates through restoration of virus-repressed selenoproteins to alleviate oxidative stress. Our approach can be readily extended to other diseases to understand how the host defends against invading pathogens through regulation of metallome.
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Affiliation(s)
- Ying Zhou
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Shuofeng Yuan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
- Department of Infectious Diseases and Microbiology, The University of Hong Kong-Shenzhen Hospital Shenzhen Guangdong China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park Hong Kong SAR China
| | - Fan Xiao
- Department of Pathology, Shenzhen Institute of Research and Innovation, The University of Hong Kong Hong Kong SAR China
| | - Hongyan Li
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Ziwei Ye
- School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Tianfan Cheng
- Faculty of Dentistry, The University of Hong Kong Pokfulam Hong Kong SAR Hong Kong China
| | - Cuiting Luo
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Kaiming Tang
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Jianpiao Cai
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Jianwen Situ
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Siddharth Sridhar
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
- Department of Infectious Diseases and Microbiology, The University of Hong Kong-Shenzhen Hospital Shenzhen Guangdong China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park Hong Kong SAR China
- Department of Microbiology, Queen Mary Hospital Pokfulam Hong Kong SAR China
| | - Wing-Ming Chu
- Division of Infectious Diseases, Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Anthony Raymond Tam
- Division of Infectious Diseases, Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Hin Chu
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Chi-Ming Che
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Lijian Jin
- Faculty of Dentistry, The University of Hong Kong Pokfulam Hong Kong SAR Hong Kong China
| | - Ivan Fan-Ngai Hung
- Department of Infectious Diseases and Microbiology, The University of Hong Kong-Shenzhen Hospital Shenzhen Guangdong China
- Division of Infectious Diseases, Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
| | - Liwei Lu
- Department of Pathology, Shenzhen Institute of Research and Innovation, The University of Hong Kong Hong Kong SAR China
| | - Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, Carol Yu Centre for Infection, Department of Microbiology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong Pokfulam Hong Kong SAR China
- Department of Infectious Diseases and Microbiology, The University of Hong Kong-Shenzhen Hospital Shenzhen Guangdong China
- Centre for Virology, Vaccinology and Therapeutics, Hong Kong Science and Technology Park Hong Kong SAR China
- Department of Microbiology, Queen Mary Hospital Pokfulam Hong Kong SAR China
- Academician Workstation of Hainan Province, Hainan Medical University-The University of Hong Kong Joint Laboratory of Tropical Infectious Diseases, The University of Hong Kong Pokfulam Hong Kong SAR China
- Guangzhou Laboratory Guangdong Province China
| | - Hongzhe Sun
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong Pokfulam Hong Kong SAR China
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Xie Y, Kang R, Klionsky DJ, Tang D. GPX4 in cell death, autophagy, and disease. Autophagy 2023; 19:2621-2638. [PMID: 37272058 PMCID: PMC10472888 DOI: 10.1080/15548627.2023.2218764] [Citation(s) in RCA: 47] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/06/2023] Open
Abstract
Selenoprotein GPX4 (glutathione peroxidase 4), originally known as PHGPX (phospholipid hydroperoxide glutathione peroxidase), is the main oxidoreductase in the use of glutathione as a reducing agent in scavenging lipid peroxidation products. There are three GPX4 isoforms: cytosolic (cGPX4), mitochondrial (mGPX4), and nuclear (nGPX4), with distinct spatiotemporal expression patterns during embryonic development and adult life. In addition to inducing the main phenotype of ferroptosis, the loss of GPX4 can in some cells trigger apoptosis, necroptosis, pyroptosis, or parthanatos, which mediates or accelerates developmental defects, tissue damage, and sterile inflammation. The interaction of GPX4 with the autophagic degradation pathway further modulates cell fate in response to oxidative stress. Impaired GPX4 function is implicated in tumorigenesis, neurodegeneration, infertility, inflammation, immune disorders, and ischemia-reperfusion injury. Additionally, the R152H mutation in GPX4 can promote the development of Sedaghatian-type spinal metaphyseal dysplasia, a rare and fatal disease in newborns. Here, we discuss the roles of classical GPX4 functions as well as emerging GPX4-regulated processes in cell death, autophagy, and disease.Abbreviations: AA: arachidonic acid; cGPX4: cytosolic GPX4; CMA: chaperone-mediated autophagy; DAMPs: danger/damage-associated molecular patterns; mGPX4: mitochondrial GPX4; nGPX4: nuclear GPX4; GSDMD-N: N-terminal fragment of GSDMD; I/R: ischemia-reperfusion; PLOOH: phospholipid hydroperoxide; PUFAs: polyunsaturated fatty acids; RCD: regulated cell death; ROS: reactive oxygen species; Se: selenium; SSMD: Sedaghatian-type spondylometaphyseal dysplasia; UPS: ubiquitin-proteasome system.
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Affiliation(s)
- Yangchun Xie
- Department of Oncology, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Rui Kang
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Daniel J. Klionsky
- Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Daolin Tang
- Department of Surgery, University of Texas Southwestern Medical Center, Dallas, TX, USA
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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: 3.0] [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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Rakotoambinina B, Hiffler L. Editorial: Clinical scope of micronutrients in human viral infections. Front Nutr 2023; 10:1258886. [PMID: 37637955 PMCID: PMC10457109 DOI: 10.3389/fnut.2023.1258886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023] Open
Affiliation(s)
- Benjamin Rakotoambinina
- Lab LRI (Laboratory Radio Isotopes) Division of Isotopic Medicine, Pediatric and Adult Physiology, University of Antananarivo, Antananarivo, Madagascar
- Cellular Nutrition Research, Lagny sur Marne, France
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Rust P, Ekmekcioglu C. The Role of Diet and Specific Nutrients during the COVID-19 Pandemic: What Have We Learned over the Last Three Years? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5400. [PMID: 37048015 PMCID: PMC10093865 DOI: 10.3390/ijerph20075400] [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: 02/17/2023] [Revised: 03/30/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
Nutrients and diets have an important impact on our immune system and infection risk and a huge number of papers have been published dealing with various aspects of nutrition in relation to SARS-CoV-2 infection risk or COVID-19 severity. This narrative review aims to give an update on this association and tries to summarize some of the most important findings after three years of pandemic. The analysis of major studies and systematic reviews leads to the conclusion that a healthy plant-based diet reduces the risks for SARS-CoV-2 infection and especially COVID-19 severity. Regarding micronutrients, vitamin D is to the fore, but also zinc, vitamin C and, to some extent, selenium may play a role in COVID-19. Furthermore, omega-3-fatty acids with their anti-inflammatory effects also deserve attention. Therefore, a major aim of societal nutritional efforts in future should be to foster a high quality plant-based diet, which not only exerts beneficial effects on the immune system but also reduces the risk for non-communicable diseases such as type 2 diabetes or obesity which are also primary risk factors for worse COVID-19 outcomes. Another aim should be to focus on a good supply of critical immune-effective nutrients, such as vitamin D and zinc.
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Affiliation(s)
- Petra Rust
- Department of Nutritional Sciences, University of Vienna, Josef-Holaubek-Platz 2, 1090 Vienna, Austria
| | - Cem Ekmekcioglu
- Department of Environmental Health, Center for Public Health, Medical University of Vienna, 1090 Vienna, Austria
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Toh P, Nicholson JL, Vetter AM, Berry MJ, Torres DJ. Selenium in Bodily Homeostasis: Hypothalamus, Hormones, and Highways of Communication. Int J Mol Sci 2022; 23:ijms232315445. [PMID: 36499772 PMCID: PMC9739294 DOI: 10.3390/ijms232315445] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/30/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022] Open
Abstract
The ability of the body to maintain homeostasis requires constant communication between the brain and peripheral tissues. Different organs produce signals, often in the form of hormones, which are detected by the hypothalamus. In response, the hypothalamus alters its regulation of bodily processes, which is achieved through its own pathways of hormonal communication. The generation and transmission of the molecules involved in these bi-directional axes can be affected by redox balance. The essential trace element selenium is known to influence numerous physiological processes, including energy homeostasis, through its various redox functions. Selenium must be obtained through the diet and is used to synthesize selenoproteins, a family of proteins with mainly antioxidant functions. Alterations in selenium status have been correlated with homeostatic disturbances in humans and studies with animal models of selenoprotein dysfunction indicate a strong influence on energy balance. The relationship between selenium and energy metabolism is complicated, however, as selenium has been shown to participate in multiple levels of homeostatic communication. This review discusses the role of selenium in the various pathways of communication between the body and the brain that are essential for maintaining homeostasis.
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Affiliation(s)
- Pamela Toh
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Jessica L. Nicholson
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA
| | - Alyssa M. Vetter
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
- School of Human Nutrition, McGill University, Montreal, QC H3A 0G4, Canada
| | - Marla J. Berry
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
| | - Daniel J. Torres
- Pacific Biosciences Research Center, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, USA
- Correspondence:
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Demircan K, Chillon TS, Bracken T, Bulgarelli I, Campi I, Du Laing G, Fafi-Kremer S, Fugazzola L, Garcia A, Heller R, Hughes DJ, Ide L, Klingenberg GJ, Komarnicki P, Krasinski Z, Lescure A, Mallon P, Moghaddam A, Persani L, Petrovic M, Ruchala M, Solis M, Vandekerckhove L, Schomburg L. Association of COVID-19 mortality with serum selenium, zinc and copper: Six observational studies across Europe. Front Immunol 2022; 13:1022673. [PMID: 36518764 PMCID: PMC9742896 DOI: 10.3389/fimmu.2022.1022673] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/31/2022] [Indexed: 11/29/2022] Open
Abstract
Introduction Certain trace elements are essential for life and affect immune system function, and their intake varies by region and population. Alterations in serum Se, Zn and Cu have been associated with COVID-19 mortality risk. We tested the hypothesis that a disease-specific decline occurs and correlates with mortality risk in different countries in Europe. Methods Serum samples from 551 COVID-19 patients (including 87 non-survivors) who had participated in observational studies in Europe (Belgium, France, Germany, Ireland, Italy, and Poland) were analyzed for trace elements by total reflection X-ray fluorescence. A subset (n=2069) of the European EPIC study served as reference. Analyses were performed blinded to clinical data in one analytical laboratory. Results Median levels of Se and Zn were lower than in EPIC, except for Zn in Italy. Non-survivors consistently had lower Se and Zn concentrations than survivors and displayed an elevated Cu/Zn ratio. Restricted cubic spline regression models revealed an inverse nonlinear association between Se or Zn and death, and a positive association between Cu/Zn ratio and death. With respect to patient age and sex, Se showed the highest predictive value for death (AUC=0.816), compared with Zn (0.782) or Cu (0.769). Discussion The data support the potential relevance of a decrease in serum Se and Zn for survival in COVID-19 across Europe. The observational study design cannot account for residual confounding and reverse causation, but supports the need for intervention trials in COVID-19 patients with severe Se and Zn deficiency to test the potential benefit of correcting their deficits for survival and convalescence.
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Affiliation(s)
- Kamil Demircan
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Thilo Samson Chillon
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Tommy Bracken
- School of Medicine, University College Dublin, Dublin, Ireland
| | - Ilaria Bulgarelli
- Laboratorio Analisi Cliniche, Centro di Ricerche e Tecnologie Biomediche, IRCCS Istituto Auxologico Italiano, Milano, Italy
| | - Irene Campi
- Division of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Faculty of Bioscience Engineering, Ghent University, Gent, Belgium
| | - Samira Fafi-Kremer
- CHU de Strasbourg, Laboratoire de Virologie, Strasbourg University, INSERM, IRM UMR-S 1109, Strasbourg, France
| | - Laura Fugazzola
- Division of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Alejandro Abner Garcia
- Centre for Experimental Pathogen Host Research, School of Medicine, University College Dublin, Dublin, Ireland
| | - Raban Heller
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, and Berlin Institute of Health, Berlin, Germany,Clinic of Traumatology and Orthopaedics, Bundeswehr Hospital Berlin, Berlin, Germany,Department of General Practice and Health Services Research, Heidelberg University Hospital, Heidelberg, Germany
| | - David J. Hughes
- School of Biomolecular and Biomedical Science, UCD Conway Institute, University College Dublin, Dublin, Ireland
| | - Louis Ide
- Laboratory Medicine, AZ Jan Palfijn AV, Gent, Belgium
| | - Georg Jochen Klingenberg
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Pawel Komarnicki
- Department of Endocrinology, Metabolism, and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Zbigniew Krasinski
- Department of Vascular and Endovascular Surgery, Angiology and Phlebology, Poznan University of Medical Sciences, Poznan, Poland
| | - Alain Lescure
- Architecture et Réactivité de l’ARN, CNRS, Université de Strasbourg, Strasbourg, France
| | - Patrick Mallon
- Centre for Experimental Pathogen Host Research, School of Medicine, University College Dublin, Dublin, Ireland
| | | | - Luca Persani
- Division of Endocrine and Metabolic Diseases, Istituto Auxologico Italiano, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS), Milan, Italy,Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Mirko Petrovic
- Department of Internal Medicine and Paediatrics, Ghent University, Gent, Belgium
| | - Marek Ruchala
- Department of Endocrinology, Metabolism, and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Morgane Solis
- CHU de Strasbourg, Laboratoire de Virologie, Strasbourg University, INSERM, IRM UMR-S 1109, Strasbourg, France
| | - Linos Vandekerckhove
- Department of Internal Medicine and Paediatrics, Ghent University, Gent, Belgium
| | - Lutz Schomburg
- Institute for Experimental Endocrinology, Charité-Universitätsmedizin Berlin, and Berlin Institute of Health, Berlin, Germany,*Correspondence: Lutz Schomburg,
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10
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Overview of Antiviral Drug Therapy for COVID-19: Where Do We Stand? Biomedicines 2022; 10:biomedicines10112815. [DOI: 10.3390/biomedicines10112815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
The vaccine weapon has resulted in being essential in fighting the COVID-19 outbreak, but it is not fully preventing infection due to an alarming spreading of several identified variants of concern. In fact, the recent emergence of variants has pointed out how the SARS-CoV-2 pandemic still represents a global health threat. Moreover, oral antivirals also develop resistance, supporting the need to find new targets as therapeutic tools. However, cocktail therapy is useful to reduce drug resistance and maximize vaccination efficacy. Natural products and metal-drug-based treatments have also shown interesting antiviral activity, representing a valid contribution to counter COVID-19 outbreak. This report summarizes the available evidence which supports the use of approved drugs and further focuses on significant clinical trials that have investigated the safety and efficacy of repurposing drugs and new molecules in different COVID-19 phenotypes. To date, there are many individuals vulnerable to COVID-19 exhibiting severe symptoms, thus characterizing valid therapeutic strategies for better management of the disease is still a challenge.
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