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Yuan S, Zhang Y, Dong PY, Chen Yan YM, Liu J, Zhang BQ, Chen MM, Zhang SE, Zhang XF. A comprehensive review on potential role of selenium, selenoproteins and selenium nanoparticles in male fertility. Heliyon 2024; 10:e34975. [PMID: 39144956 PMCID: PMC11320318 DOI: 10.1016/j.heliyon.2024.e34975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 07/17/2024] [Accepted: 07/19/2024] [Indexed: 08/16/2024] Open
Abstract
Selenium (Se), a component of selenoproteins and selenocompounds in the human body, is crucial for the development of male reproductive organs, DNA synthesis, thyroid hormone, metabolism, and defence against infections and oxidative damage. In the testis, it must exceed a desirable level since either a shortage or an overabundance causes aberrant growth. The antioxidant properties of selenium are essential for preserving human reproductive health. Selenoproteins, which have important structural and enzymatic properties, control the biological activities of Se primarily. These proteins specifically have a role in metabolism and a variety of cellular processes, such as the control of selenium transport, thyroid hormone metabolism, immunity, and redox balance. Selenium nanoparticles (SeNPs) are less hazardous than selenium-based inorganic and organic materials. Upon being functionalized with active targeting ligands, they are both biocompatible and capable of efficiently delivering combinations of payloads to particular cells. In this review, we discuss briefly the chemistry, structure and functions of selenium and milestones of selenium and selenoproteins. Next we discuss the various factors influences male infertility, biological functions of selenium and selenoproteins, and role of selenium and selenoproteins in spermatogenesis and male fertility. Furthermore, we discuss the molecular mechanism of selenium transport and protective effects of selenium on oxidative stress, apoptosis and inflammation. We also highlight critical contribution of selenium nanoparticles on male fertility and spermatogenesis. Finally ends with conclusion and future perspectives.
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Affiliation(s)
- Shuai Yuan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Ye Zhang
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong, 250014, China
| | - Pei-Yu Dong
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yu-Mei Chen Yan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jing Liu
- Analytical & Testing Center of Qingdao Agricultural University, Qingdao, 266100, China
| | - Bing-Qiang Zhang
- Qingdao Restore Biotechnology Co., Ltd., Qingdao, 266111, China
- Key Laboratory of Cancer and Immune Cells of Qingdao, Qingdao, 266111, China
| | - Meng-Meng Chen
- Qingdao Restore Biotechnology Co., Ltd., Qingdao, 266111, China
- Key Laboratory of Cancer and Immune Cells of Qingdao, Qingdao, 266111, China
| | - Shu-Er Zhang
- Animal Husbandry General Station of Shandong Province, Jinan, 250010, China
| | - Xi-Feng Zhang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
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Zhang Y, Li T, Ding X, Liu L, Xu P, Ma Y, Xing H, Keerman M, Niu Q. Elevated Serum Copper, Zinc, Selenium, and Lowered α-Klotho Associations: Findings from NHANES 2011-2016 Dataset. Biol Trace Elem Res 2024:10.1007/s12011-024-04282-6. [PMID: 38937385 DOI: 10.1007/s12011-024-04282-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 06/14/2024] [Indexed: 06/29/2024]
Abstract
The α-Klotho is crucial for human health and longevity. However, the relationship between trace elements and α-Klotho levels needs further investigation. We aimed to explore the relationship between serum levels of selenium (Se), copper (Cu), and zinc (Zn), and serum α-Klotho levels. We analyzed 2138 samples from the 2011-2016 National Health and Nutrition Examination Survey, and the weighted linear regression, WQS, and qgcomp models were utilized to evaluate the effects of these elements on serum α-Klotho levels, individually and combined. A negative correlation was observed between serum Cu concentration and serum α-Klotho levels (β = - 0.128, 95% CI - 0.196, - 0.059), with each increase in Cu concentration grade showing a gradual decrease in serum α-Klotho levels (Ptrend = 0.002). The WQS model exhibited a negative correlation between the combined effect of Se, Cu, and Zn and serum α-Klotho levels (β = - 0.035, 95%CI - 0.060, - 0.010), consistently in males (β = - 0.038 (- 0.059, - 0.017)) and in the 40-49 age group (β = - 0.059, 95% CI - 0.119, - 0.012). The qgcomp model mirrored these findings, showing a negative correlation in the combined effect index of Se, Cu, and Zn with serum α-Klotho levels (β = - 0.027, 95% CI - 0.047, - 0.006), consistent in females (β = - 0.032, 95% CI - 0.061, - 0.004) and in individuals with BMI ≥ 25 (β = - 0.030, 95% CI - 0.054, - 0.006), and in the 40-49 age group (β = - 0.047, 95% CI - 0.088, - 0.006). Elevated serum Cu levels may be associated with lower serum α-Klotho levels. The combined effect of serum Se, Cu, and Zn shows a negative correlation with serum α-Klotho levels, with Cu contributing the most. Our findings provide significant insights into assessing the role of trace nutrients in maintaining human health.
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Affiliation(s)
- Yue Zhang
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Tingting Li
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Xueman Ding
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Li Liu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Panpan Xu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Yue Ma
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Hengrui Xing
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China
| | - Mulatibieke Keerman
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China.
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China.
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China.
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China.
| | - Qiang Niu
- Department of Preventive Medicine, School of Medicine, Shihezi University, North 2Th Road, Shihezi, Xinjiang, 832000, People's Republic of China.
- Key Laboratory for Prevention and Control of Emerging Infectious Diseases and Public Health Security, the Xinjiang Production and Construction Corps, Shihezi, Xinjiang, People's Republic of China.
- Key Laboratory of Xinjiang Endemic and Ethnic Diseases (Ministry of Education), School of Medicine, Shihezi University, Shihezi, Xinjiang, People's Republic of China.
- NHC Key Laboratory of Prevention and Treatment of Central Asia High Incidence Diseases (First Affiliated Hospital, School of Medicine, Shihezi University), Shihezi, People's Republic of China.
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Dhillon G, Buddhavarapu V, Grewal H, Sharma P, Verma RK, Munjal R, Devadoss R, Kashyap R. Hydrogen Water: Extra Healthy or a Hoax?-A Systematic Review. Int J Mol Sci 2024; 25:973. [PMID: 38256045 PMCID: PMC10816294 DOI: 10.3390/ijms25020973] [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: 12/22/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Hydrogen-rich water (HRW) has emerged as a novel approach in the field of health and wellness. It is believed to have therapeutic antioxidant properties that can neutralize harmful free radicals in the human body. It has also been shown to be beneficial in mitigating oxidative stress-induced damage through its anti-inflammatory and anti-apoptotic pathways. We aim to conduct a systematic review to evaluate the potential benefits of hydrogen-rich water. The review protocol was uploaded on PROSPERO. After the initial search criteria, the articles were reviewed by two blinded investigators, and a total of 25 articles were included in the systematic review. The potential benefits of hydrogen-rich water on various aspects of health, including exercise capacity, physical endurance, liver function, cardiovascular disease, mental health, COVID-19, oxidative stress, and anti-aging research, are a subject of growing interest and ongoing research. Although preliminary results in clinical trials and studies are encouraging, further research with larger sample sizes and rigorous methodologies is needed to substantiate these findings. Current research needs to fully explain the mechanisms behind the potential benefits of hydrogen-rich water. Continued scientific exploration will provide valuable insights into the potential of hydrogen-rich water as an adjunctive therapeutic approach in the future.
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Affiliation(s)
- Gagandeep Dhillon
- Department of Internal Medicine, University of Maryland Baltimore Washington Medical Center, Glen Burnie, MD 21061, USA
| | | | - Harpreet Grewal
- Department of Radiology, Florida State University School of Medicine, Pensacola, FL 32514, USA;
| | - Pranjal Sharma
- Department of Internal Medicine, Northeast Ohio Medical University, Rootstown, OH 44272, USA;
| | - Ram Kishun Verma
- Department of Sleep Medicine, Parkview Health System, Fort Wayne, IN 46845, USA;
| | - Ripudaman Munjal
- Department of Nephrology, Touro University College of Osteopathic Medicine, Vallejo, CA 94592, USA;
| | - Ramprakash Devadoss
- Interventional Cardiology, Carle Methodist Medical Center, Peoria, IL 61636, USA;
| | - Rahul Kashyap
- Department of Research, WellSpan Health, York, PA 17403, USA;
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D’Alonzo ZJ, Lam V, Takechi R, Nesbit M, Vaccarezza M, Mamo JCL. Peripheral metabolism of lipoprotein-amyloid beta as a risk factor for Alzheimer's disease: potential interactive effects of APOE genotype with dietary fats. GENES & NUTRITION 2023; 18:2. [PMID: 36841786 PMCID: PMC9960179 DOI: 10.1186/s12263-023-00722-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/07/2023] [Indexed: 02/27/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder pathologically characterized by brain parenchymal abundance of amyloid-beta (Aβ) and the accumulation of lipofuscin material that is rich in neutral lipids. However, the mechanisms for aetiology of AD are presently not established. There is increasing evidence that metabolism of lipoprotein-Aβ in blood is associated with AD risk, via a microvascular axis that features breakdown of the blood-brain barrier, extravasation of lipoprotein-Aβ to brain parenchyme and thereafter heightened inflammation. A peripheral lipoprotein-Aβ/capillary axis for AD reconciles alternate hypotheses for a vascular, or amyloid origin of disease, with amyloidosis being probably consequential. Dietary fats may markedly influence the plasma abundance of lipoprotein-Aβ and by extension AD risk. Similarly, apolipoprotein E (Apo E) serves as the primary ligand by which lipoproteins are cleared from plasma via high-affinity receptors, for binding to extracellular matrices and thereafter for uptake of lipoprotein-Aβ via resident inflammatory cells. The epsilon APOE ε4 isoform, a major risk factor for AD, is associated with delayed catabolism of lipoproteins and by extension may increase AD risk due to increased exposure to circulating lipoprotein-Aβ and microvascular corruption.
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Affiliation(s)
- Zachary J. D’Alonzo
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Medical School, Curtin University, Perth, Western Australia Australia ,grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia
| | - Virginie Lam
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia ,grid.1032.00000 0004 0375 4078Faculty of Health Sciences, School of Population Health, Curtin University, Perth, Western Australia Australia
| | - Ryu Takechi
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia ,grid.1032.00000 0004 0375 4078Faculty of Health Sciences, School of Population Health, Curtin University, Perth, Western Australia Australia
| | - Michael Nesbit
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia
| | - Mauro Vaccarezza
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Medical School, Curtin University, Perth, Western Australia Australia ,grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia
| | - John C. L. Mamo
- grid.1032.00000 0004 0375 4078Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia Australia ,grid.1032.00000 0004 0375 4078Faculty of Health Sciences, School of Population Health, Curtin University, Perth, Western Australia Australia
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Mires S, Caputo M, Overton T, Skerritt C. Maternal micronutrient deficiency and congenital heart disease risk: A systematic review of observational studies. Birth Defects Res 2022; 114:1079-1091. [PMID: 35979646 DOI: 10.1002/bdr2.2072] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/17/2022] [Accepted: 07/19/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND Congenital anomalies affect over 2% of pregnancies, with congenital heart disease (CHD) the most common. Understanding of causal factors is limited. Micronutrients are essential trace elements with key roles in growth and development. We aimed to investigate whether maternal micronutrient deficiencies increase the risk of fetal CHD through systematic review of published literature. METHOD We performed a systematic review registered at PROSPERO as CRD42021276699. Ovid-MEDLINE, Ovid-EMBASE, and Cochrane Library were searched from their inception until September 7, 2021. Case control trials were included with a population of biological mothers of fetuses with and without CHD. The exposure was maternal micronutrient level measured in pregnancy or the postpartum period. Data extraction was performed by one author and checked by a second. Risk of bias assessment was performed according to the Scottish Intercollegiate Guidelines Network guidance. We performed a narrative synthesis for analysis. RESULTS 726 articles were identified of which 8 met our inclusion criteria. Final analysis incorporated data from 2,427 pregnancies, 1,199 of which were complicated by fetal CHD assessing 8 maternal micronutrients: vitamin D, vitamin B12, folate, vitamin A, zinc, copper, selenium, and ferritin. Studies were heterogenous with limited sample sizes and differing methods and timing of maternal micronutrient sampling. Definitions of deficiency varied and differed from published literature. Published results were contradictory. CONCLUSION There is not enough evidence to confidently conclude if maternal micronutrient deficiencies increase the risk of fetal CHD. Further large-scale prospective study is required to answer this question.
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Affiliation(s)
- Stuart Mires
- Fetal Medicine Unit, St Michaels Hospital, University of Bristol, Bristol, United Kingdom
| | - Massimo Caputo
- Paediatric Congenital Heart Surgery, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom
| | - Timothy Overton
- Fetal Medicine Unit, St Michaels Hospital, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom
| | - Clare Skerritt
- Paediatric General Surgery, Bristol Royal Hospital for Children, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom
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Abstract
The relationships between nutrition and immunity have been the subject of several studies. The main fact lies in the deep entanglement between immunity, and nutritional state: all deficiencies in proteins, essential fatty acids, metallo-enzymes, vitamin factors, and antioxidant elements lead to a dysfunction of the immune system. On the other hand, some excess food (total lipid intake, type of fatty acids, simple sugars, etc.) can, also, have deleterious effects. The emergence of new infectious diseases with new pathogenic properties is a serious global health problem. Covid-19 infection (Coronavirus Disease-2019) caused by the coronavirus SARS-CoV2 (Severe Acute Respiratory Syndrome Coronavirus-2), is recognized as pandemic by the World Health Organization (WHO).This implies strict prevention measures, and a strategy to be developed throughout good hygiene, healthy and balanced diet, and compliance with the con-finement rules.
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Microbial Dynamics and Nutritional Status of Namsing: A Traditional Fermented Fish Product of Mishing Community of Assam. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s40011-018-1022-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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YIN C, ZHANG C, GAO M. Enzyme-catalyzed Synthesis of Vitamin E Succinate Using a Chemically Modified Novozym-435. Chin J Chem Eng 2011. [DOI: 10.1016/s1004-9541(09)60189-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gil del Valle L. Oxidative stress in aging: Theoretical outcomes and clinical evidences in humans. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.biomag.2011.03.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Gil Del Valle L. WITHDRAWN: Oxidative stress in aging: Theoretical outcomes and clinical evidences in humans. Biomed Pharmacother 2010:S0753-3322(10)00146-0. [PMID: 20950991 DOI: 10.1016/j.biopha.2010.09.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Accepted: 09/05/2010] [Indexed: 11/24/2022] Open
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.biomag.2011.03.001. The duplicate article has therefore been withdrawn.
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Affiliation(s)
- Lizette Gil Del Valle
- Clinical Pharmacology Laboratory, Hospital of the Institute "Pedro Kourí", Institute of Tropical Medecine "Pedro Kourí", P.O. Box 601, Marianao 13, Ciudad de La Habana, Havana City, Cuba
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Vitamin C deficiency is an under-diagnosed contributor to degenerative disc disease in the elderly. Med Hypotheses 2009; 74:695-7. [PMID: 19932568 DOI: 10.1016/j.mehy.2009.10.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 10/26/2009] [Indexed: 11/23/2022]
Abstract
The human aging process is often accompanied by significant increases in degenerative spine disease. The pathophysiology of intervertebral disc degeneration has been extensively studied, but the etiology of this aging-related problem remains poorly understood. The elderly often have lower daily vitamin C intakes and circulating ascorbic acid values than younger people because of problems with poor dentition or mobility, and also are more likely to have underlying sub-clinical diseases that can reduce plasma ascorbate concentrations. Ascorbate is essential for collagen production, and vitamin C deficiency will result in defective connective tissue, including reductions in collagen synthesis and structural stability. It is hypothesised that vitamin C deficiencies may be a key contributing factor in the development of degenerative disk disease (DDD) in the elderly. Once degenerative disc disease has begun, the tissue inflammation that accompanies DDD may further increase vitamin C requirements in the affected patient, thereby creating a cascade of positive feedbacks that potentially accelerates and contributes to further disc degeneration and low-back pain. Aggressive monitoring of patient ascorbate status, as well as more finely-calibrated RDAs for vitamin C that explicitly take into account the patient's age, may be required if aging-related degenerative disk disease is to be minimised.
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Xu Z. Comparison of extraction methods for quantifying vitamin E from animal tissues. BIORESOURCE TECHNOLOGY 2008; 99:8705-8709. [PMID: 18550368 DOI: 10.1016/j.biortech.2008.04.065] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2008] [Revised: 04/07/2008] [Accepted: 04/08/2008] [Indexed: 05/26/2023]
Abstract
Four extraction methods: (1) solvent (SOL), (2) ultrasound assisted solvent (UA), (3) saponification and solvent (SP), and (4) saponification and ultrasound assisted solvent (SP-UA), were used in sample preparation for quantifying vitamin E (tocopherols) in chicken liver and plasma samples. The extraction yields of SOL, UA, SP, and SP-UA methods obtained by adding delta-tocopherol as internal reference were 95%, 104%, 65%, and 62% for liver and 98%, 103%, 97%, and 94% for plasma, respectively. The methods with saponification significantly affected the stabilities of tocopherols in liver samples. The measured values of alpha- and gamma-tocopherols using the solvent only extraction (SOL) method were much lower than that using any of the other extraction methods. This indicated that less of the tocopherols in those samples were in a form that could be extracted directly by solvent. The measured value of alpha-tocopherol in the liver sample using the ultrasound assisted solvent (UA) method was 1.5-2.5 times of that obtained from the saponification and solvent (SP) method. The differences in measured values of tocopherols in the plasma samples by using the two methods were not significant. However, the measured value of the saponification and ultrasound assisted solvent (SP-UA) method was lower than either the saponification and solvent (SP) or the ultrasound assisted solvent (UA) method. Also, the reproducibility of the ultrasound assisted solvent (UA) method was greater than any of the saponification methods. Compared with the traditional saponification method, the ultrasound assisted solvent method could effectively extract tocopherols from sample matrix without any chemical degradation reactions, especially for complex animal tissue such as liver.
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Affiliation(s)
- Zhimin Xu
- Louisiana State University Agricultural Center, Department of Food Science, Baton Rouge, LA 70803, USA.
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Gil L, Siems W, Mazurek B, Gross J, Schroeder P, Voss P, Grune T. Age-associated analysis of oxidative stress parameters in human plasma and erythrocytes. Free Radic Res 2006; 40:495-505. [PMID: 16551576 DOI: 10.1080/10715760600592962] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Oxidative damage accumulation in macromolecules has been considered as a cause of cellular damage and pathology. Rarely, the oxidative stress parameters in healthy humans related to the individual age have been reported. The purpose of this study was to examine the redox status in plasma and erythrocytes of healthy individuals and determine correlations between these parameters and the aging process. The following parameters were used: malondialdehyde (MDA), protein carbonyls (PCO), 4-hydroxy-2,3-trans-nonenal (HNE), reduced glutathione (GSH), glutathione disulfide (GSSG) and uric acid (UA) in blood and plasma samples of 194 healthy women and men of ages ranging from 18 to 84 years. The results indicate that the balance of oxidant and antioxidant systems in plasma shifts in favor of accelerated oxidation during ageing. That is demonstrated by increases of MDA, HNE, GSSG and by the slight decrease of erythrocytic GSH with age. As the content of UA is more determined by metabolic and nutritional influences than by the balance between prooxidants and antioxidants there was no significant age-related change observed. For plasma concentrations of HNE the first time age-dependent reference values for healthy humans are presented.
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Affiliation(s)
- Lizette Gil
- Hospital of the Institute Pedro Kourí, Department of Clinical Pharmacology, Havana, Cuba
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Dangour AD, Sibson VL, Fletcher AE. Hormones and Supplements: Do They Work?: Micronutrient Supplementation in Later Life: Limited Evidence for Benefit. J Gerontol A Biol Sci Med Sci 2004; 59:659-73. [PMID: 15304530 DOI: 10.1093/gerona/59.7.b659] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The importance of attaining adequate macronutrient and micronutrient intake throughout the life course is essential for the maintenance of health. Claims have been made for the benefits of micronutrient supplementation in later life, and this review considers the strength of the evidence behind these claims focusing on studies with cardiovascular, cancer, eye health, immune, and cognitive end points. While observational data suggest the presence of a link between dietary micronutrient intake and health outcomes, evidence from large randomized controlled trials does not support the use of antioxidant vitamin or mineral supplements among well-nourished older populations. Moreover, there is evidence of possible adverse affects of micronutrient supplementation. In conclusion, the considerable enthusiasm for the use of micronutrient, especially antioxidant, supplements as anti-aging treatments or as treatments for specific diseases of later life is not supported by the currently available scientific literature.
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Affiliation(s)
- Alan D Dangour
- Nutrition and Public Health Intervention Research Unit, Department of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, U.K.
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Abstract
Micronutrient deficiencies are a major problem throughout the world and hundreds of millions of the world's population are affected by micronutrient deficiency disorders. In Europe the prevalence of clinical micronutrient deficiency disorders is less than that in the Third World. However, marginal deficiency of some of the micronutrients might be involved in the aetiology of many of the so-called lifestyle diseases, e.g. cancer, cardiovascular diseases, diabetes, osteoporosis. Supplementing domestic animals with micronutrients in excess of their needs could be one strategy to increase the intake and, thereby, status of micronutrients in the human population. This approach should, however, be considered carefully, in relation to both animal and human welfare. Many micronutrients that may accumulate in animal foods are toxic in high doses. It would also be unethical to expose animals to doses that might have deleterious effects on their health, and concentrations in animal products that might have adverse effects when consumed by man should be avoided. Furthermore, food quality should not be impaired by the supplement. On the other hand, to be relevant in relation to human nutrition, the given micronutrient should accumulate in animal tissue in concentrations that make an important contribution to total intake. Finally, the micronutrient should be incorporated in a way and in a form that is bioavailable to man, i.e. is well absorbed and utilized.
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Affiliation(s)
- Susanne Bügel
- Department of Human Nutrition, The Royal Veterinary and Agricultural University, Rolighedsvej 30, 1958 Frederiksberg C, Denmark.
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Jackson MJ, Broome CS, McArdle F. Marginal dietary selenium intakes in the UK: are there functional consequences? J Nutr 2003; 133:1557S-9S. [PMID: 12730465 DOI: 10.1093/jn/133.5.1557s] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Much data indicate that overt selenium deficiency induces a number of pathologies in animals and humans. The effects of chronic marginal undernutrition of this element are unclear, although it has been argued that such subjects will be at increased risk of developing various cancers. The dietary intake of selenium in the UK has fallen over the last 25 years, although no functional consequences of this have been recognized. Recent data demonstrate that restoration of selenium intakes in UK subjects induces biochemical effects with increased activity of selenium-dependent enzymes. Whether such biochemical changes are associated with functional changes is currently unclear and the subject of current investigation.
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Affiliation(s)
- Malcolm J Jackson
- Department of Medicine, University of Liverpool, Liverpool, L69 3GA, UK.
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Wang XL, Rainwater DL, VandeBerg JF, Mitchell BD, Mahaney MC. Genetic contributions to plasma total antioxidant activity. Arterioscler Thromb Vasc Biol 2001; 21:1190-5. [PMID: 11451750 DOI: 10.1161/hq0701.092146] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Oxidative stress plays important roles in a wide spectrum of pathological processes, such as atherosclerosis. Although several environmental factors are documented to influence redox metabolism, relatively little is known about genetic effects. In the present study, we evaluated genetic contributions to variation in plasma total antioxidant status (TAS), a measure of peroxyl-scavenging capacity, in 1337 members of 40 Mexican American families. TAS levels were significantly lower in women than in men (1.675+/-0.004 versus 1.805+/-0.005 mmol/L, respectively; P<0.001), and there was a significant decline of TAS levels with age in men but not in women (P<0.01 for the interaction). Quantitative genetic analysis indicated the heritability of TAS levels to be 0.509+/-0.052; ie, approximately 51% of the residual variance (after covariate adjustment) in TAS levels was due to the additive effects of genes (P<0.001). We have further observed a significant gene-by-smoking interaction (P<0.05). Additive genetic effects account for 83% of the residual phenotypic variance in TAS levels among smokers, but they account for only 49% in nonsmokers. However, genes contributing to TAS variation are the same in smokers and nonsmokers. Our study for the first time demonstrates that TAS, an indicator of redox homeostasis, is under strong genetic control, especially among smokers. With appropriate tools, such as genome screening, it should be possible to localize genes that regulate redox homeostasis and, ultimately, identify the DNA sequence variants predisposing subjects to oxidative damage.
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Affiliation(s)
- X L Wang
- Department of Genetics, Southwest Foundation for Biomedical Research, San Antonio, TX 78227-5301, USA.
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20
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Abstracts of Original Communications. Proc Nutr Soc 2001. [DOI: 10.1017/s0029665101000623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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McDermott JH. Antioxidant nutrients: current dietary recommendations and research update. JOURNAL OF THE AMERICAN PHARMACEUTICAL ASSOCIATION (WASHINGTON, D.C. : 1996) 2000; 40:785-99. [PMID: 11111359 DOI: 10.1016/s1086-5802(16)31126-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To review the importance of antioxidant nutrients in the maintenance of health and the prevention and treatment of disease, with a focus on data pertaining to vitamin C, vitamin E, selenium, and carotenoids. A secondary objective was to discuss the new Dietary Reference Intakes released by the Institute of Medicine (IOM) for these nutrients. DATA SOURCES IOM reports on the use of antioxidant vitamins were reviewed for nutrient recommendations. In addition, a MEDLINE search was performed to identify recent research and review articles on the topic, which were analyzed to identify key research findings in the area. DATA SYNTHESIS The review discusses the biologic processes of oxidation reactions and antioxidants in biologic systems, provides an overview of information on selected antioxidant nutrients, and explores their role in the prevention and treatment of cancer, cardiovascular disease, ocular disorders, and respiratory disorders. CONCLUSION There appear to be significant health benefits from dietary antioxidants, as can be found in fruits and vegetables. Some prospective assessment of the effect of supplemental antioxidants also suggests benefit, especially for vitamin E; however, there are conflicting results in this area. Overall, it appears that antioxidant nutrients, especially those from food sources, have important roles in preventing pathogenic processes related to cancer, cardiovascular disease, macular degeneration, cataracts, and asthma, and may enhance immune function.
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Affiliation(s)
- J H McDermott
- School of Pharmacy, University of North Carolina, Chapel Hill, USA.
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