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Zhu Y, Xu H, Wang Y, Feng X, Liang X, Xu L, Liang Z, Xu Z, Li Y, Le Y, Zhao M, Yang J, Li J, Cao Y. Risk factor analysis for diabetic foot ulcer-related amputation including Controlling Nutritional Status score and neutrophil-to-lymphocyte ratio. Int Wound J 2023; 20:4050-4060. [PMID: 37403337 PMCID: PMC10681407 DOI: 10.1111/iwj.14296] [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: 04/14/2023] [Revised: 06/08/2023] [Accepted: 06/16/2023] [Indexed: 07/06/2023] Open
Abstract
Diabetic foot ulcer often leads to amputation, and both nutritional status and immune function have been associated with this process. We aimed to investigate the risk factors of diabetic ulcer-related amputation including the Controlling Nutritional Status score and neutrophil-to-lymphocyte ratio biomarker. We evaluated data from hospital in patients with diabetic foot ulcer, performing univariate and multivariate analyses to screen for high-risk factors and Kaplan-Meier analysis to correlate high-risk factors with amputation-free survival. Overall, 389 patients underwent 247 amputations over the follow-up period. After correction to relevant variables, we identified five independent risk factors for diabetic ulcer-related amputation: ulcer severity, ulcer site, peripheral arterial disease, neutrophil-to-lymphocyte ratio and nutritional status. Amputation-free survival was lower for the moderate-to-severe versus mild cases, for the plantar forefoot versus hindfoot location, for the concomitant peripheral artery disease versus without and in the high versus low neutrophil-to-lymphocyte ratio (all p < 0.01). The results showed that ulcer severity (p < 0.01), ulcer site (p < 0.01), peripheral artery disease (p < 0.01), neutrophil-to-lymphocyte ratio (p < 0.01) and Controlling Nutritional Status score (p < 0.05) were independent risk factors for amputation in diabetic foot ulcer patients and have predictive values for diabetic foot ulcer progression to amputation.
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Affiliation(s)
- Yandan Zhu
- Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Hongtao Xu
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yuzhen Wang
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xia Feng
- Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Xinyu Liang
- Shanghai University of Traditional Chinese MedicineShanghaiChina
| | - Liying Xu
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Zhiqiang Liang
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Zhongjia Xu
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yawen Li
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yi Le
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Manchen Zhao
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Jianfei Yang
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Ji Li
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
| | - Yemin Cao
- Shanghai Traditional Chinese Medicine Integrated HospitalShanghai University of Traditional Chinese MedicineShanghaiChina
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2
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Calder PC. Nutrition and immunity: lessons from coronavirus disease-2019. Proc Nutr Soc 2023:1-16. [PMID: 37886807 DOI: 10.1017/s0029665123004792] [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: 10/28/2023]
Abstract
This review will provide an overview of the immune system and then describe the effects of frailty, obesity, specific micronutrients and the gut microbiota on immunity and susceptibility to infection including data from the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic where relevant. A key role for the immune system is providing host defence against pathogens. Impaired immunity predisposes to infections and to more severe infections and weakens the response to vaccination. A range of nutrients, including many micronutrients, play important roles in supporting the immune system to function. The immune system can decline in later life and this is exaggerated by frailty. The immune system is also weakened with obesity, generalised undernutrition and micronutrient deficiencies, which all result in increased susceptibility to infection. Findings obtained during the SARS-CoV-2 pandemic support what was already known about the effects of ageing, frailty and obesity on immunity and susceptibility to infection. Observational studies conducted during the pandemic also support previous findings that multiple micronutrients including vitamins C, D and E, zinc and selenium and long-chain n-3 fatty acids are important for immune health, but whether these nutrients can be used to treat those already with coronavirus disease discovered in 2019 (COVID-19), particularly if already hospitalised, is uncertain from current inconsistent or scant evidence. There is gut dysbiosis in patients with COVID-19 and studies with probiotics report clinical improvements in such patients. There is an inverse association between adherence to a healthy diet and risk of SARS-CoV-2 infection and hospitalisation with COVID-19 which is consistent with the effects of individual nutrients and other dietary components. Addressing frailty, obesity and micronutrient insufficiency will be important to reduce the burden of future pandemics and nutritional considerations need to be a central part of the approach to preventing infections, optimising vaccine responses and promoting recovery from infection.
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Affiliation(s)
- Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton SO16 6YD, UK
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Neelamana SK, Janakiram C, Vijayakumar P, Varma B, Gopakumar D. Profile of 10,935 elderly patients attending the geriatrics department of a medical college: A retrospective study from South India. J Family Med Prim Care 2023; 12:531-535. [PMID: 37122649 PMCID: PMC10131949 DOI: 10.4103/jfmpc.jfmpc_1891_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 05/02/2023] Open
Abstract
Introduction Globally, the elderly population is growing at a rate of 2.6% per year. Understanding the health profile and healthcare needs of the elderly is important. The elderly is the most vulnerable and high-risk groups in terms of health status. Their healthcare-seeking behaviour is crucial in any society. There is a need to generate awareness among the public, politicians, and policymakers regarding multiple issues related to the ageing population in the country. Objective To know the health profile and health-related problems of geriatric patients visiting the department of geriatrics at a medical college. Methodology A five-year retrospective analysis of medical records of patients visiting the department of geriatrics from 4 September 2016 to 4 September 2021 was done using Microsoft Excel software and IBM SPSS Statistics. All records in that duration were reviewed and included. Results Descriptive statistics of medical and dental problems of geriatric patients were recorded. The association of medical and dental problems with gender was assessed. Conclusion A majority of geriatricians are unaware of oral health problems. Medical-dental collaboration is inadequate and should be improved in geriatrics.
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Affiliation(s)
- Sandhya K. Neelamana
- Amrita School of Dentistry, Amrita Viswavidyapeetham, Edapilly, Kochi, Kerala, India
- Address for correspondence: Dr. Sandhya K. Neelamana, Amrita School of Dentistry, Amrita Viswavidyapeetham, Edapilly, Kochi, Kerala, India. E-mail:
| | - Chandrasekhar Janakiram
- Deparment of Public Health Dentistry, Amrita School of Dentistry, Amrita Viswavidyapeetham, Edapally, Kochi, Kerala, India
| | - Priya Vijayakumar
- Department of Geriatrics, Amrita Institute of Medical Sciences, Edapilly, Kochi, Kerala, India
| | - Beena Varma
- Department of Oral Medicine and Radiology, Amrita School of Dentistry, Amrita Viswavidyapeetham, Edapally, Kochi, Kerala, India
| | - Divya Gopakumar
- Amrita School of Dentistry, Amrita Viswavidyapeetham, Edapilly, Kochi Kerala, India
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Nutritional Status Is Associated with Health-Related Quality of Life, Physical Activity, and Sleep Quality: A Cross-Sectional Study in an Elderly Greek Population. Nutrients 2023; 15:nu15020443. [PMID: 36678316 PMCID: PMC9862893 DOI: 10.3390/nu15020443] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/05/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
This study aims to explore the associations between nutritional status and health-related quality of life, physical activity, and sleep quality in older exclusively Caucasian adults from Greec who were free of any severe disease. This is a cross-sectional study. Mini Nutritional Assessment was used to assess nutritional status, health-related quality of life was assessed using the Short Form Healthy Survey questionnaire, sleep quality was assessed using the Pittsburgh Sleep Quality Index, and physical activity levels were assessed via the International Physical Activity Questionnaire. 3405 community-dwelling men and women, over 65 years old from14 different Greek regions were enrolled. Ten-point four percent (10.4%) of the participants were classified as malnourished, while 35.6% were "at risk of malnutrition". A better nutritional status was significantly and independently associated with higher physical activity levels (p = 0.0011) and better quality of life (p = 0.0135), as well as better sleep quality (p = 0.0202). In conclusion, our study highlights the interrelationships between a good nutritional status, a high-quality sleep, active lifestyle, and good quality of life. Further interventional studies are needed to clarify the associations, and test the feasibility of improving the nutritional status, physical activity levels and sleep quality of the elderly, and the impact of these changes on quality of life, and healthy ageing in races beyond Caucasian populations. Public health strategies and policies should be recommended to inform older adults for the necessity to improve their nutritional status and lifestyle habits to improve their health status and to obtain better life expectancy.
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Kananen L, Eriksdotter M, Boström A, Kivipelto M, Annetorp M, Metzner C, Bäck Jerlardtz V, Engström M, Johnson P, Lundberg L, Åkesson E, Sühl Öberg C, Hägg S, Religa D, Jylhävä J, Cederholm T. Body mass index and Mini Nutritional Assessment-Short Form as predictors of in-geriatric hospital mortality in older adults with COVID-19. Clin Nutr 2022; 41:2973-2979. [PMID: 34389208 PMCID: PMC8318666 DOI: 10.1016/j.clnu.2021.07.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/06/2021] [Accepted: 07/20/2021] [Indexed: 01/27/2023]
Abstract
BACKGROUND & AIMS Overweight and obesity have been consistently reported to carry an increased risk for poorer outcomes in coronavirus disease 2019 (COVID-19) in adults. Existing reports mainly focus on in-hospital and intensive care unit mortality in patient cohorts usually not representative of the population with the highest mortality, i.e. the very old and frail patients. Accordingly, little is known about the risk patterns related to body mass and nutrition in very old patients. Our aim was to assess the relationship between body mass index (BMI), nutritional status and in-geriatric hospital mortality among geriatric patients treated for COVID-19. As a reference, the analyses were performed also in patients treated for other diagnoses than COVID-19. METHODS We analyzed up to 10,031 geriatric patients with a median age of 83 years of which 1409 (14%) were hospitalized for COVID-19 and 8622 (86%) for other diagnoses in seven geriatric hospitals in the Stockholm region, Sweden during March 2020-January 2021. Data were available in electronic hospital records. The associations between 1) BMI and 2) nutritional status, assessed using the Mini-Nutritional Assessment - Short Form (MNA-SF) scale, and short-term in-geriatric hospital mortality were analyzed using logistic regression. RESULTS After adjusting for age, sex, comorbidity, polypharmacy, frailty and the wave of the pandemic (first vs. second), underweight defined as BMI<18.5 increased the risk of in-hospital mortality in COVID-19 patients (odds ratio [OR] = 2.30; confidence interval [CI] = 1.17-4.31). Overweight and obesity were not associated with in-hospital mortality. Malnutrition; i.e. MNA-SF 0-7 points, increased the risk of in-hospital mortality in patients treated for COVID-19 (OR = 2.03; CI = 1.16-3.68) and other causes (OR = 6.01; CI = 2.73-15.91). CONCLUSIONS Our results indicate that obesity is not a risk factor for very old patients with COVID-19, but emphasize the role of underweight and malnutrition for in-hospital mortality in geriatric patients with COVID-19.
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Affiliation(s)
- L. Kananen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden,Faculty of Social Sciences (Health Sciences), Gerontology Research Center, Tampere University, Tampere, Finland,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland,Corresponding author. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - M. Eriksdotter
- Division Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden,Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden
| | - A.M. Boström
- Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden,Division of Nursing, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden,Research and Development Unit, Stockholms Sjukhem, Stockholm, Sweden
| | - M. Kivipelto
- Division Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden,Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden,Research and Development Unit, Stockholms Sjukhem, Stockholm, Sweden
| | - M. Annetorp
- Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden
| | - C. Metzner
- Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden
| | - V. Bäck Jerlardtz
- Department of Geriatric Medicine, Jakobsbergsgeriatriken, Stockholm, Sweden
| | - M. Engström
- Department of Geriatric Medicine, Sabbatsbergsgeriatriken, Stockholm, Sweden
| | - P. Johnson
- Department of Geriatric Medicine, Capio Geriatrik Nacka AB, Nacka, Sweden
| | - L.G. Lundberg
- Department of Geriatric Medicine, Dalengeriatriken Aleris Närsjukvård AB, Stockholm, Sweden
| | - E. Åkesson
- Research and Development Unit, Stockholms Sjukhem, Stockholm, Sweden
| | - C. Sühl Öberg
- Department of Geriatric Medicine, Handengeriatriken, Aleris Närsjukvård AB, Stockholm, Sweden
| | - S. Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - D. Religa
- Division Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden,Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden
| | - J. Jylhävä
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden,Faculty of Social Sciences (Health Sciences), Gerontology Research Center, Tampere University, Tampere, Finland
| | - T. Cederholm
- Division Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden,Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden,Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
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6
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Calder PC, Ortega EF, Meydani SN, Adkins Y, Stephensen CB, Thompson B, Zwickey H. Nutrition, Immunosenescence, and Infectious Disease: An Overview of the Scientific Evidence on Micronutrients and on Modulation of the Gut Microbiota. Adv Nutr 2022; 13:S1-S26. [PMID: 36183242 PMCID: PMC9526826 DOI: 10.1093/advances/nmac052] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/30/2022] [Accepted: 05/06/2022] [Indexed: 01/28/2023] Open
Abstract
The immune system is key to host defense against pathogenic organisms. Aging is associated with changes in the immune system, with a decline in protective components (immunosenescence), increasing susceptibility to infectious disease, and a chronic elevation in low-grade inflammation (inflammaging), increasing the risk of multiple noncommunicable diseases. Nutrition is a determinant of immune cell function and of the gut microbiota. In turn, the gut microbiota shapes and controls the immune and inflammatory responses. Many older people show changes in the gut microbiota. Age-related changes in immune competence, low-grade inflammation, and gut dysbiosis may be interlinked and may relate, at least in part, to age-related changes in nutrition. A number of micronutrients (vitamins C, D, and E and zinc and selenium) play roles in supporting the function of many immune cell types. Some trials report that providing these micronutrients as individual supplements can reverse immune deficits in older people and/or in those with insufficient intakes. There is inconsistent evidence that this will reduce the risk or severity of infections including respiratory infections. Probiotic, prebiotic, or synbiotic strategies that modulate the gut microbiota, especially by promoting the colonization of lactobacilli and bifidobacteria, have been demonstrated to modulate some immune and inflammatory biomarkers in older people and, in some cases, to reduce the risk and severity of gastrointestinal and respiratory infections, although, again, the evidence is inconsistent. Further research with well-designed and well-powered trials in at-risk older populations is required to be more certain about the role of micronutrients and of strategies that modify the gut microbiota-host relationship in protecting against infection, especially respiratory infection.
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Affiliation(s)
- Philip C Calder
- School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Edwin Frank Ortega
- Nutritional Immunology Laboratory, Jean Mayer–USDA Human Nutrition Research on Aging at Tufts University, Boston, MA, USA
| | - Simin N Meydani
- Nutritional Immunology Laboratory, Jean Mayer–USDA Human Nutrition Research on Aging at Tufts University, Boston, MA, USA
| | - Yuriko Adkins
- USDA Western Human Nutrition Research Center, Davis, CA, USA
- Nutrition Department, University of California, Davis, CA, USA
| | - Charles B Stephensen
- USDA Western Human Nutrition Research Center, Davis, CA, USA
- Nutrition Department, University of California, Davis, CA, USA
| | - Brice Thompson
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - Heather Zwickey
- Helfgott Research Institute, National University of Natural Medicine, Portland, OR, USA
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7
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Olmo-Fontánez AM, Turner J. Tuberculosis in an Aging World. Pathogens 2022; 11:pathogens11101101. [PMID: 36297158 PMCID: PMC9611089 DOI: 10.3390/pathogens11101101] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 09/18/2022] [Accepted: 09/22/2022] [Indexed: 11/29/2022] Open
Abstract
Tuberculosis (TB) is one of the leading causes of death due to its being an infectious disease, caused by the airborne pathogen Mycobacterium tuberculosis (M.tb). Approximately one-fourth of the world’s population is infected with latent M.tb, and TB is considered a global threat killing over 4000 people every day. The risk of TB susceptibility and mortality is significantly increased in individuals aged 65 and older, confirming that the elderly represent one of the largest reservoirs for M.tb infection. The elderly population faces many challenges that increase their risk of developing respiratory diseases, including TB. The challenges the elderly face in this regard include the following: decreased lung function, immuno-senescence, inflammaging, adverse drug effects, low tolerance to anti-TB drugs, lack of suitable diagnoses/interventions, and age-associated comorbidities. In order to find new therapeutic strategies to maintain lung homeostasis and resistance to respiratory infections as we age, it is necessary to understand the molecular and cellular mechanisms behind natural lung aging. This review focuses primarily on why the elderly are more susceptible to TB disease and death, with a focus on pulmonary function and comorbidities.
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Affiliation(s)
- Angélica M. Olmo-Fontánez
- Host Pathogen Interactions and Population Health Programs, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
- Integrated Biomedical Sciences Program, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Joanne Turner
- Host Pathogen Interactions and Population Health Programs, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
- Correspondence:
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8
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Maffetone PB, Laursen PB. Rethinking COVID-19 and Beyond: Prevention, Remedies, and Recovery. Front Public Health 2022; 10:748498. [PMID: 35284402 PMCID: PMC8904369 DOI: 10.3389/fpubh.2022.748498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 01/14/2022] [Indexed: 11/13/2022] Open
Abstract
In a relatively short timeframe, millions of deaths and illnesses associated with COVID-19 have been reported, accompanied by substantial economic losses, and overall, negatively impacting society. This experience should serve as a wakeup call to those in public health and healthcare, along with politicians and citizens: COVID-19 is considered a predictable and preventable disaster. While various reactive responses to address the pandemic were implemented, some with adverse effects, proactive measures in the years before COVID-19 were neglected. Predominately this involved the development of a preventable overfat pandemic, which played a key role in both rising rates of chronic disease, the comorbidities that increase the risk for COVID-19, along with associated inflammation and malnutrition. This increased the risk of infection in billions of people worldwide, which, in essence, primed society for high rates of COVID-19 infection. Excess body fat evolves primarily from poor nutrition, particularly the overconsumption of sugar and other refined carbohydrates, which replace the vital nutrients needed for optimal immune function. Sugar and refined carbohydrates must be considered the new tobacco, as these foods are also devoid of nutrients, and underly inflammatory chronic diseases. A balanced diet of nutrient-dense wholefood must be emphasized to combat infectious and inflammatory diseases. Implementing proactive preventive lifestyle changes must begin now, starting with simple, safe, and inexpensive dietary modifications that can quickly lead to a healthier population.
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Abstract
The role of the immune system is to protect the individual against pathogenic organisms. Nutrition is one of multiple factors that determines the immune response and good nutrition is important in supporting the immune response. Immunity can be impaired in older people, particularly those who are frail, in those living with obesity, in those who are malnourished and in those with low intakes of micronutrients. The immune impairments associated with nutritional inadequacy increase susceptibility to infection and permit infections to become more severe, even fatal. The adverse impact of poor nutrition on the immune system, including its inflammatory component, may be one of the explanations for the higher risk of more severe outcomes from infection with SARS-CoV-2 seen in older people and in those living with obesity. Studies of individual micronutrients including vitamin D and zinc suggest roles in reducing severity of infection with SARS-CoV-2. Good nutrition is also important in promoting a diverse gut microbiota, which in turn supports the immune system. The importance of nutrition in supporting the immune response also applies to assuring robust responses to vaccination. There are many lessons from the study of nutrition and immunity that are relevant for the battle with SARS-CoV-2.
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10
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Nutrition and immunity: lessons for COVID-19. Eur J Clin Nutr 2021; 75:1309-1318. [PMID: 34163017 PMCID: PMC8220366 DOI: 10.1038/s41430-021-00949-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/06/2021] [Accepted: 05/17/2021] [Indexed: 01/30/2023]
Abstract
The role of the immune system is to protect the individual against pathogenic organisms. Nutrition is one of multiple factors that determines the immune response and good nutrition is important in supporting the immune response. Immunity can be impaired in older people, particularly those who are frail, in those living with obesity, in those who are malnourished and in those with low intakes of micronutrients. The immune impairments associated with nutritional inadequacy increase susceptibility to infection and permit infections to become more severe, even fatal. The adverse impact of poor nutrition on the immune system, including its inflammatory component, may be one of the explanations for the higher risk of more severe outcomes from infection with SARS-CoV-2 seen in older people and in those living with obesity. Studies of individual micronutrients including vitamin D and zinc suggest roles in reducing severity of infection with SARS-CoV-2. Good nutrition is also important in promoting a diverse gut microbiota, which in turn supports the immune system. The importance of nutrition in supporting the immune response also applies to assuring robust responses to vaccination. There are many lessons from the study of nutrition and immunity that are relevant for the battle with SARS-CoV-2.
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11
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Effect of Herbal Formulation on Immune Response Enhancement in RAW 264.7 Macrophages. Biomolecules 2020; 10:biom10030424. [PMID: 32182890 PMCID: PMC7175197 DOI: 10.3390/biom10030424] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 02/27/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
Immune response is a necessary self-defense mechanism that protects the host from infectious organisms. Many medicinal plants are popularly used in Asian folk medicine to increase body resistance. An herbal formulation named KM1608 was prepared from three medicinal plants: Saussurea lappa, Terminalia chebula, and Zingiber officinale. In this study, we evaluated the immune stimulatory effect of KM1608 on RAW 264.7 murine macrophages. Network pharmacological analyses were used to predict potential immune response pathways of major compounds from KM1608. The cytotoxicity and immuno-stimulating effect of KM1608 were determined using cell viability and nitric oxide assays. The underlying mechanism of immunomodulatory activity was evaluated by quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) of pro-inflammatory cytokines. The results of network pharmacological analysis suggested that major compounds from KM1608 possess anticancer potential via immune signaling pathways. After treatment with KM1608 at 25–100 µg/mL for 24 h, the level of nitric oxide was increased in the dose-dependent manner. The results of quantitative real-time PCR showed that KM1608 stimulates the expression of immune cytokines (interferon (IFN)-α, -β, IL-1β, -6, IL-10, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2)) in macrophages. KM1608 extract is a potential agent for immune response enhancement.
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12
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Aiello A, Farzaneh F, Candore G, Caruso C, Davinelli S, Gambino CM, Ligotti ME, Zareian N, Accardi G. Immunosenescence and Its Hallmarks: How to Oppose Aging Strategically? A Review of Potential Options for Therapeutic Intervention. Front Immunol 2019; 10:2247. [PMID: 31608061 PMCID: PMC6773825 DOI: 10.3389/fimmu.2019.02247] [Citation(s) in RCA: 393] [Impact Index Per Article: 78.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 09/05/2019] [Indexed: 12/11/2022] Open
Abstract
Aging is accompanied by remodeling of the immune system. With time, this leads to a decline in immune efficacy, resulting in increased vulnerability to infectious diseases, diminished responses to vaccination, and a susceptibility to age-related inflammatory diseases. An age-associated immune alteration, extensively reported in previous studies, is the reduction in the number of peripheral blood naïve cells, with a relative increase in the frequency of memory cells. These two alterations, together with inflamm-aging, are considered the hallmarks of immunosenescence. Because aging is a plastic process, it is influenced by both nutritional and pharmacological interventions. Therefore, the role of nutrition and of immunomodulation in immunosenescence is discussed, due to the multifactorial influence on these hallmarks. The close connection between nutrition, intake of bioactive nutrients and supplements, immune function, and inflammation demonstrate the key role of dietary strategies as regulators of immune response and inflammatory status, hence as possible modulators of the rate of immunosenescence. In addition, potential options for therapeutic intervention are clarified. In particular, the use of interleukin-7 as growth factor for naïve T cells, the function of checkpoint inhibitors in improving T cell responses during aging and, the potential of drugs that inhibit mitogen-activated protein kinases and their interaction with nutrient signaling pathways are discussed. Finally, it is suggested that the inclusion of appropriate combinations of toll-like receptor agonists may enhance the efficacy of vaccination in older adults.
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Affiliation(s)
- Anna Aiello
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Farzin Farzaneh
- Molecular Medicine Group, Department of Hematological Medicine, School of Cancer & Pharmaceutical Sciences, The Rayne Institute, King's College London, London, United Kingdom
| | - Giuseppina Candore
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Calogero Caruso
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Sergio Davinelli
- Department of Medicine and Health Sciences "V. Tiberio", University of Molise, Campobasso, Italy.,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Caterina Maria Gambino
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Mattia Emanuela Ligotti
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Nahid Zareian
- Molecular Medicine Group, Department of Hematological Medicine, School of Cancer & Pharmaceutical Sciences, The Rayne Institute, King's College London, London, United Kingdom
| | - Giulia Accardi
- Laboratory of Immunopathology and Immunosenescence, Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy
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Wei XB, Chen WJ, Duan CY, Qin TH, Yu Y, Geng QS, Jiang L. Joint effects of uric acid and lymphocyte count on adverse outcomes in elderly patients with rheumatic heart disease undergoing valve replacement surgery. J Thorac Cardiovasc Surg 2019; 158:420-427.e1. [DOI: 10.1016/j.jtcvs.2018.10.058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 08/14/2018] [Accepted: 10/09/2018] [Indexed: 10/28/2022]
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How effective is nutrition education aiming to prevent or treat malnutrition in community-dwelling older adults? A systematic review. Eur Geriatr Med 2019; 10:339-358. [PMID: 34652790 DOI: 10.1007/s41999-019-00172-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 02/13/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND While malnutrition is associated with adverse health outcomes in older adults, little is known about the effectiveness of nutrition education. This systematic review examines the evidence for educational interventions to improve nutritional and other health-related outcomes in community-dwelling older people. METHODS Systematic searches of three databases (Embase, Medline and CINAHL) were conducted. Studies testing educational interventions targeting older adults (mean age ≥ 60 years) or their caregivers were eligible for inclusion. Two authors independently assessed trial eligibility, risk of bias and extracted data. Study heterogeneity was high precluding meta-analysis, therefore a narrative synthesis was conducted. RESULTS Nine articles reporting on eight studies (n = 7 trials; 1 pre-post-intervention study) met inclusion criteria. There was considerable variability in the format of educational interventions. Nutrition education was either generic or personalised and the intensity was variable (1-6 sessions). We found some evidence (in five out of eight studies) that nutrition education may improve nutrition-related outcomes. Nutrition education involving caregivers was found to reduce nutritional risk in one study, and nutritional counselling following discharge from hospital was found to reduce the risk of readmission in another study. However, the overall quality of the studies was hampered by poor methodology, low sample size and attrition bias, and results need to be interpreted with caution. CONCLUSIONS Educational interventions may have potential to improve malnutrition-related outcomes in older people, but the strength of evidence is poor. More robust, larger studies are needed to ascertain the effectiveness of nutritional education interventions in this population.
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Ning P, Yang B, Li S, Mu X, Shen Q, Hu F, Tang Y, Yang X, Xu Y. Systematic review of the prognostic role of body mass index in amyotrophic lateral sclerosis. Amyotroph Lateral Scler Frontotemporal Degener 2019; 20:356-367. [PMID: 30931632 DOI: 10.1080/21678421.2019.1587631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Pingping Ning
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
| | - Baiyuan Yang
- Department of Neurology, Seventh People’s Hospital of Chengdu, Chengdu, Sichuan Province, P.R. China,
| | - Shuangjiang Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
| | - Xin Mu
- Department of Neurology, Chengdu First People’s Hospital, Chengdu, Sichuan Province, P.R. China and
| | - Qiuyan Shen
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
| | - Fayun Hu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
| | - Yao Tang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
| | - Xinglong Yang
- Department of Geriatric Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan Province, P.R. China
| | - Yanming Xu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan Province, P.R. China,
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Miao JP, Quan XQ, Zhang CT, Zhu H, Ye M, Shen LY, Guo QH, Zhu GY, Mei QJ, Wu YX, Li SG, Zhou HL. Comparison of two malnutrition risk screening tools with nutritional biochemical parameters, BMI and length of stay in Chinese geriatric inpatients: a multicenter, cross-sectional study. BMJ Open 2019; 9:e022993. [PMID: 30782871 PMCID: PMC6411257 DOI: 10.1136/bmjopen-2018-022993] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES The aims of this study were to assess malnutrition risk in Chinese geriatric inpatients using Nutritional Risk Screening 2002 (NRS2002) and Mini-Nutritional Assessment (MNA), and to identify the most appropriate nutritional screening tool for these patients. DESIGN Cross-sectional study. SETTING Eight medical centres in Hubei Province, China. PARTICIPANTS A total of 425 inpatients aged ≥70 years were consecutively recruited between December 2014 and May 2016. PRIMARY AND SECONDARY OUTCOME MEASURES Nutritional risk was assessed using NRS2002, MNA, anthropometric measurements and biochemical parameters within 24 hours of admission. Comorbidities and length of hospitalisation were recorded. Nutritional parameters, body mass index (BMI) and length of hospital stay (LOS) were employed to compare MNA and NRS2002. Kappa analysis was used to evaluate the consistency of the two tools. RESULTS The average age was 81.2±5.9 years (range, 70-98). The prevalence of undernutrition classified by NRS2002 and MNA was 40.9% and 58.6%, respectively. Patients undergoing malnutrition had lower BMI, haemoglobin, albumin and prealbumin (p<0.05), and longer LOS (p<0.05). The NRS2002 showed moderate agreement (κ=0.521, p<0.001) with MNA. Both tools presented significant correlation with age, BMI and laboratory parameters (p<0.001). In addition, a significant association between both tools and LOS was found (p<0.05). In addition, the NRS2002 was not different from MNA in predicting nutritional risk in terms of the area under the receiver operating characteristic curve (p>0.05). CONCLUSIONS The results show a relatively high prevalence of malnutrition risk in our sample cohort. We found that NRS2002 and MNA were both suitable in screening malnutrition risk among Chinese geriatric inpatients.
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Affiliation(s)
- Jian-Ping Miao
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Clinical Research Center for Prevention Treatment and Health Care Medicine of Geriatric Diseases in Hubei Province, Wuhan, China
- Wuhan Clinical Research Center for Treatment and Rehabilitation of Elderly Multi-Organ Dysfunction, Wuhan, China
| | - Xiao-Qing Quan
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Clinical Research Center for Prevention Treatment and Health Care Medicine of Geriatric Diseases in Hubei Province, Wuhan, China
- Wuhan Clinical Research Center for Treatment and Rehabilitation of Elderly Multi-Organ Dysfunction, Wuhan, China
| | - Cun-Tai Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Clinical Research Center for Prevention Treatment and Health Care Medicine of Geriatric Diseases in Hubei Province, Wuhan, China
- Wuhan Clinical Research Center for Treatment and Rehabilitation of Elderly Multi-Organ Dysfunction, Wuhan, China
| | - Hong Zhu
- Department of Geriatrics, The Central Hospital of Wuhan University, Wuhan, China
| | - Mei Ye
- Department of Geriatrics, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Li-Ya Shen
- Department of Geriatrics, Wuhan No 6 Hospital, Wuhan, China
| | - Qiu-Hui Guo
- Department of Geriatrics, Wuhan No 6 Hospital, Wuhan, China
| | - Gang-Yan Zhu
- Department of Geriatrics, Hubei General Hospital, Wuhan, China
| | - Qi-Jian Mei
- Department of Geriatrics, General Hospital of the Yangtze River Shipping, Wuhan, China
| | - Yan-Xia Wu
- Department of Geriatrics, Wuhan No 1 Hospital, Wuhan, China
| | - Shu-Guo Li
- Department of Geriatrics, First Clinical Medical College, Three Gorges University and Yichang Central People’s Hospital, Yichang, China
| | - Hong-Lian Zhou
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Clinical Research Center for Prevention Treatment and Health Care Medicine of Geriatric Diseases in Hubei Province, Wuhan, China
- Wuhan Clinical Research Center for Treatment and Rehabilitation of Elderly Multi-Organ Dysfunction, Wuhan, China
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Role of Zinc and Selenium in Oxidative Stress and Immunosenescence: Implications for Healthy Aging and Longevity. HANDBOOK OF IMMUNOSENESCENCE 2019. [PMCID: PMC7121636 DOI: 10.1007/978-3-319-99375-1_66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aging is a complex process that includes gradual and spontaneous biochemical and physiological changes which contributes to a decline in performance and increased susceptibility to diseases. Zn and Se are essential trace elements that play a pivotal role in immune functions and antioxidant defense and, consequently, are claimed to play also a role in successful aging trajectories. Consistently with their nature of essential trace elements, a plethora of data obtained “in vitro” and “in vivo” (in humans and animal models) support the relevance of Zn and Se for both the innate and adoptive immune response. Moreover, Zn and Se are strictly involved in the synthesis and regulation of activity of proteins and enzymes, e.g., metallothioneins (MT) and glutathione peroxidase (GPX), that are necessary for our endogenous antioxidant response. This is clearly important to protect our cells from oxidative damage and to slow the decline of our immune system with aging. Age-related changes affecting tissue levels of Zn and Se may indicate that the risk of Zn and Se deficiency increases with aging. However, it is still unclear which of these changes can be the consequence of a “real deficiency” and which can be part of our physiological compensatory response to the accumulating damage occurring in aging. Furthermore, the upregulation of antioxidant proteins (Zn and Se dependent) may be a manifestation of self-induced oxidative stress. By the way, Zn and Se dependent proteins are modulated not only by nutritional status, but also by well-known hallmarks of aging that play antagonistic functions, such as the deregulated nutrient sensing pathways and cellular senescence. Thus, it is not an easy task to conduct Zn or Se supplementation in elderly and it is emerging consistent that these kind of supplementation requires an individualized approach. Anyway, there is consistent support that supplementation with Zn using doses around 10 mg/day is generally safe in elderly and may even improve part of immune performances in those subjects with a baseline deficiency. Regarding Se supplementation, it may induce both beneficial and detrimental effects on cellular immunity depending on the form of Se, supplemental dose, and delivery matrix. The nutritional association of supplements based on “Zn plus Se” is hypothesized to provide additional benefits, but this will likely need a more complex individualized approach. The improvement of our knowledge around screening and detection of Zn and Se deficiency in aging could lead to substantial benefits in terms of efficacy of nutritional supplements aimed at ameliorate performance and health in aging.
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Fitzpatrick F, Skally M, O'Hanlon C, Foley M, Houlihan J, Gaughan L, Smith O, Moore B, Cunneen S, Sweeney E, Dinesh B, O'Connell K, Smyth E, Humphreys H, Burns K. Food for thought. Malnutrition risk associated with increased risk of healthcare-associated infection. J Hosp Infect 2018; 101:300-304. [PMID: 30590089 DOI: 10.1016/j.jhin.2018.12.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/19/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND Infection and malnutrition are interconnected. UK and Irish guidelines recommend the Malnutrition Universal Screening Tool (MUST) for nutritional risk screening. Patients with a MUST score of ≥2 are considered at high risk of malnutrition and referral for nutritional assessment is recommended. AIM To explore the association between healthcare-associated infection (HCAI) and the MUST score categories of patients. METHODS This was a cross-sectional study in May 2017 on ten representative wards in our institution. Patient demographics, MUST score, presence of medical devices, HCAI and antimicrobial use were collected. FINDINGS Of 240 patients, the HCAI prevalence was 10.4% (N = 25) and 26% (N = 63) were at high risk of malnutrition (MUST score ≥2). Patients with HCAI were more likely to have had surgery (odds ratio (OR): 5.5; confidence interval (CI): 2.1-14.3; P < 0.001), a central vascular catheter (OR: 10.0; CI: 3.6-27.2; P < 0.001), or a urinary catheter in situ (OR: 7.5; CI: 2.8-20.0; P < 0.001), and to have a high risk of malnutrition (OR: 4.3; CI: 1.7-11.2; P < 0.001). A higher MUST score remained a significant predictor of a patient having HCAI on multivariate regression analysis (CI: 0.2-0.6; P < 0.001). CONCLUSION Patients at risk of malnutrition when assessed with the MUST were more likely to have HCAI. However, prospective studies are required to investigate the temporal association between MUST and HCAI and which interventions best address malnutrition risk and HCAI reduction in different settings.
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Affiliation(s)
- F Fitzpatrick
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland; Department of Clinical Microbiology, The Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - M Skally
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - C O'Hanlon
- Department of Nutrition and Dietetics, Beaumont Hospital, Dublin, Ireland
| | - M Foley
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - J Houlihan
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - L Gaughan
- Department of Pharmacy, Beaumont Hospital, Dublin, Ireland
| | - O Smith
- Department of Nutrition and Dietetics, Beaumont Hospital, Dublin, Ireland
| | - B Moore
- Department of Nutrition and Dietetics, Beaumont Hospital, Dublin, Ireland
| | - S Cunneen
- Department of Nutrition and Dietetics, Beaumont Hospital, Dublin, Ireland
| | - E Sweeney
- Department of Nutrition and Dietetics, Beaumont Hospital, Dublin, Ireland
| | - B Dinesh
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - K O'Connell
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - E Smyth
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland
| | - H Humphreys
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland; Department of Clinical Microbiology, The Royal College of Surgeons in Ireland, Dublin, Ireland
| | - K Burns
- Department of Microbiology, Beaumont Hospital, Dublin, Ireland; Health Protection Surveillance Centre, Dublin, Ireland
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Park K, Oeda T, Kohsaka M, Tomita S, Umemura A, Sawada H. Low body mass index and life prognosis in Parkinson's disease. Parkinsonism Relat Disord 2018; 55:81-85. [DOI: 10.1016/j.parkreldis.2018.05.011] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/04/2018] [Accepted: 05/14/2018] [Indexed: 12/14/2022]
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Calder PC, Bosco N, Bourdet-Sicard R, Capuron L, Delzenne N, Doré J, Franceschi C, Lehtinen MJ, Recker T, Salvioli S, Visioli F. Health relevance of the modification of low grade inflammation in ageing (inflammageing) and the role of nutrition. Ageing Res Rev 2017; 40:95-119. [PMID: 28899766 DOI: 10.1016/j.arr.2017.09.001] [Citation(s) in RCA: 275] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 08/03/2017] [Accepted: 09/05/2017] [Indexed: 02/06/2023]
Abstract
Ageing of the global population has become a public health concern with an important socio-economic dimension. Ageing is characterized by an increase in the concentration of inflammatory markers in the bloodstream, a phenomenon that has been termed "inflammageing". The inflammatory response is beneficial as an acute, transient reaction to harmful conditions, facilitating the defense, repair, turnover and adaptation of many tissues. However, chronic and low grade inflammation is likely to be detrimental for many tissues and for normal functions. We provide an overview of low grade inflammation (LGI) and determine the potential drivers and the effects of the "inflamed" phenotype observed in the elderly. We discuss the role of gut microbiota and immune system crosstalk and the gut-brain axis. Then, we focus on major health complications associated with LGI in the elderly, including mental health and wellbeing, metabolic abnormalities and infections. Finally, we discuss the possibility of manipulating LGI in the elderly by nutritional interventions. We provide an overview of the evidence that exists in the elderly for omega-3 fatty acid, probiotic, prebiotic, antioxidant and polyphenol interventions as a means to influence LGI. We conclude that slowing, controlling or reversing LGI is likely to be an important way to prevent, or reduce the severity of, age-related functional decline and the onset of conditions affecting health and well-being; that there is evidence to support specific dietary interventions as a strategy to control LGI; and that a continued research focus on this field is warranted.
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Affiliation(s)
- Philip C Calder
- Faculty of Medicine, University of Southampton, Southampton, United Kingdom; NIHR Southampton Biomedical Research Centre, University Hospital NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Nabil Bosco
- Nestlé Research Center Asia, 21 Biopolis Road, 138567, Singapore
| | | | - Lucile Capuron
- INRA, Nutrition and Integrative Neurobiology, 33076 Bordeaux, France; Nutrition and Integrative Neurobiology (NutriNeuro), UMR 1286, University of Bordeaux, 33076 Bordeaux, France
| | - Nathalie Delzenne
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute, Catholic University of Louvain, B-1200 Brussels, Belgium
| | - Joel Doré
- MetaGénoPolis, INRA, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Claudio Franceschi
- IRCCS, Institute of Neurological Sciences of Bologna, Bologna 40124, Italy
| | - Markus J Lehtinen
- DuPont Nutrition and Health, Global Health and Nutrition Science, 02460 Kantvik, Finland
| | - Tobias Recker
- International Life Sciences Institute European Branch, 1200 Brussels, Belgium.
| | - Stefano Salvioli
- Department of Experimental, Diagnostic, and Specialty Medicine, University of Bologna, 40126 Bologna, Italy
| | - Francesco Visioli
- Department of Molecular Medicine, University of Padova, 35121 Padova, Italy; IMDEA-Food, 28049 Madrid, Spain
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Ou SM, Chen YT, Hung SC, Shih CJ, Lin CH, Chiang CK, Tarng DC. Association of estimated glomerular filtration rate with all-cause and cardiovascular mortality: the role of malnutrition-inflammation-cachexia syndrome. J Cachexia Sarcopenia Muscle 2016; 7:144-51. [PMID: 27493868 PMCID: PMC4864176 DOI: 10.1002/jcsm.12053] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 04/19/2015] [Accepted: 05/04/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Previous studies have demonstrated that high estimated glomerular filtration rate (eGFR) is paradoxically associated with an increased risk of mortality, and the association becomes more predominant in older people. However, the role of malnutrition-inflammation-cachexia syndrome (MICS) in the association between eGFR and mortality has never been explored. METHODS We conducted a community-based cohort study using data from the Taipei City Elderly Health Examination Database, collected during the period 2001-10. All participants aged ≥65 years were included and stratified by the absence or presence of MICS, which is defined as the presence of at least one of the following markers: body mass index <22 kg/m(2), serum albumin <3.0 mg/dL, or Geriatric Nutritional Risk Index (GNRI) <98. The study endpoints were all-cause and cardiovascular mortality. RESULTS A total of 131 354 participants were identified and categorized according to the chronic kidney disease stage based on eGFR. Compared with the reference eGFR of 60-89 mL/min/1.73 m(2), the overall and cardiovascular mortality risks were markedly high in the groups with eGFR of <30 mL/min/1.73 m(2) [overall: adjusted hazard ratio (aHR), 1.86; 95% confidence interval (CI), 1.72-2.00; cardiovascular: aHR, 1.87; 95% CI, 1.60-2.19] and ≥90 mL/min/1.73 m(2) (overall: aHR, 1.23; 95% CI, 1.13-1.34; cardiovascular: aHR, 1.28; 95% CI, 1.06-1.54). In the absence of MICS, high eGFR was associated with lower mortality risk (aHR, 0.71; 95% CI, 0.62-0.80), and the U-shaped relationship disappeared. Subgroup analyses produced consistent results. CONCLUSIONS MICS could influence the association observed between high eGFR and mortality in older people, particularly in those with low body mass index, albumin level, GNRI, and very low serum creatinine level.
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Affiliation(s)
- Shuo-Ming Ou
- Division of Nephrology, Department of Medicine Taipei Veterans General Hospital Taipei Taiwan; School of Medicine National Yang-Ming University Taipei Taiwan; Institute of Clinical Medicine National Yang-Ming University Taipei Taiwan
| | - Yung-Tai Chen
- School of Medicine National Yang-Ming University Taipei Taiwan; Department of Medicine Taipei City Hospital Heping Fuyou Branch Taipei Taiwan
| | - Szu-Chun Hung
- Division of Nephrology Taipei Tzu Chi Hospital Taipei Taiwan
| | - Chia-Jen Shih
- School of Medicine National Yang-Ming University Taipei Taiwan; Department of Medicine, Taipei Veterans General Hospital Yuanshan Branch Yilan Taiwan
| | - Chi-Hung Lin
- Institute of Clinical Medicine National Yang-Ming University Taipei Taiwan; Institute of Microbiology and Immunology National Yang-Ming University Taipei Taiwan
| | - Chih-Kang Chiang
- Institute of Toxicology, College of Medicine National Taiwan University Taipei Taiwan
| | - Der-Cherng Tarng
- Division of Nephrology, Department of Medicine Taipei Veterans General Hospital Taipei Taiwan; School of Medicine National Yang-Ming University Taipei Taiwan; Institute of Clinical Medicine National Yang-Ming University Taipei Taiwan; Department and Institute of Physiology National Yang-Ming University Taipei Taiwan
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Chen JY, Wang LK, Feng PH, Chu CC, Cheng TJ, Weng SF, Wu SZ, Lu TH, Chang CY. Risk of Shingles in Adults with Primary Sjogren's Syndrome and Treatments: A Nationwide Population-Based Cohort Study. PLoS One 2015; 10:e0134930. [PMID: 26305359 PMCID: PMC4549303 DOI: 10.1371/journal.pone.0134930] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 07/15/2015] [Indexed: 12/26/2022] Open
Abstract
Background Primary Sjögren's syndrome (pSS) is associated with immunological dysfunctions—a well-known risk factor of shingles. This study aimed to examine the incidence and risk of shingles in adults with pSS and pharmacological treatments. Methods This retrospective population-based cohort study was conducted using National Health Insurance claims data. Using propensity scores, 4,287 pSS adult patients and 25,722-matched cohorts by age, gender, selected comorbidities and Charlson comorbidity index scores were identified. Kaplan-Meier analysis and Cox regression were conducted to compare the differences in developing shingles. In pSS, oral and eye dryness are treated with substitute agents. Extraglandular features are often treated with pharmacological drugs including steroids and immunosuppressants. pSS patients were grouped as follows: no pharmacological drugs, steroids alone; immunosuppressants alone; combined therapies. Results During the follow-up, 463 adults with pSS (10.80%) and 1,345 control cohorts (5.23%) developed shingles. The cumulative incidence of shingles in pSS patients (18.74/1,000 patient-years) was significantly higher than controls (8.55/1,000 patient-years). The adjusted hazard ratio (HR) of shingles was 1.69 (95% confidence interval (CI) 1.50–1.90). In age-subgroup analyses, incidences of shingles in pSS increased with age and peaked in pSS patients aged ≧60; however, adjusted HRs decreased with age. Compared to control cohorts with no drugs, adjusted HRs for shingles in pSS patients were ranked from high to low as: combined therapies (4.14; 95% CI 3.14–5.45) > immunosuppressants alone (3.24; 95% CI 2.36–4.45) > steroids alone (2.54; 95% CI 2.16–2.97) > no pharmacological drugs (2.06; 95% CI 1.76–2.41). Rates of shingles-associated hospitalization and postherpetic neuralgia were 5.62% and 24.41%, both of which were significantly higher than those (2.60%; 13.01%) in the control cohorts. Conclusions Adults with pSS were at greater risk for shingles than control cohorts. Drug exposures significantly increased the risk of shingles in pSS.
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Affiliation(s)
- Jen-Yin Chen
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
- Department of the Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Li-Kai Wang
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Ping-Hsun Feng
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Chin-Chen Chu
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Tain-Junn Cheng
- Department of Neurology, Chi Mei Medical Center, Tainan, Taiwan
| | - Shih-Feng Weng
- Department of Medical Research, Chi Mei Medical Center, Tainan, Taiwan
| | - Su-Zhen Wu
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
| | - Tsung-Hsueh Lu
- Institute of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Yu Chang
- Department of Neurology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Food Science and Applied Biotechnology, National Chung Hsing University, Taichung, Taiwan
- The center for General Education, Southern Taiwan University of Science and Technology, Tainan, Taiwan
- * E-mail:
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Tung YC, Tu HP, Tsai WC, Chen CS, Su CH, Shi HY, Lin CL. Increased Incidence of Herpes Zoster and Postherpetic Neuralgia in Adult Patients following Traumatic Brain Injury: A Nationwide Population-Based Study in Taiwan. PLoS One 2015; 10:e0129043. [PMID: 26065420 PMCID: PMC4466241 DOI: 10.1371/journal.pone.0129043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 05/04/2015] [Indexed: 11/29/2022] Open
Abstract
The aims of this study were to estimate the incidences of herpes zoster (HZ) and postherpetic neuralgia (PHN) in patients after traumatic brain injury (TBI). Furthermore, we aimed to explore the risk factors of the development of HZ and PHN in patients after TBI. This population-based, longitudinal analysis was conducted using the Taiwan National Health Insurance Research Database (consisting of 1,000,000 beneficiaries) from 1996 to 2010. Using the longitudinal National Health Insurance Research Database, we conducted a retrospective population-based cohort study to evaluate the incidence of HZ and PHN in adult TBI patients and controls. Kaplan-Meier analysis and Cox regression were used to compare differences in the development of HZ and PHN. The effects of gender, comorbidity and surgery on the risk of HZ and PHN development were assessed by subgroup analyses. Over a 15-year follow-up, the cumulative incidence of HZ in 28,234 TBI patients (604.00/100,000 person-years) was significantly higher than 34,085 controls (322.21/100,000 person-years) (P<0.0001, by log-rank test). Females showed a significantly higher incidence of HZ than males (p for interaction = 0.0010). The time to HZ development in the follow-up period was 5.9 years in TBI patients compared to 9.9 years in the control set (p <0.0001). TBI patients were 2.93 and 2.11 times likely to develop HZ and PHN, respectively, than the general population. The incidences of HZ and PHN in TBI patients were also significantly greater than for controls in the CCI = 0 subgroup. To our knowledge, this is the first population-based cohort study to reveal that TBI is an independent risk factor for HZ and PHN in TBI patients, especially in females. Physician should pay attention to the possibility of HZ and PHN in TBI patients and be aware that HZ vaccination early after brain trauma may lower the incidence of HZ and PHN.
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Affiliation(s)
- Yi-Ching Tung
- Department of Public Health and Environmental Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Hung-Pin Tu
- Department of Public Health and Environmental Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Wen-Chan Tsai
- Departments of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C
| | - Cheng-Sheng Chen
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C
| | - Chen-Hsiang Su
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C
| | - Hon-Yi Shi
- Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Chih-Lung Lin
- Department of Neurosurgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C
- * E-mail:
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Puranen TM, Pitkala KH, Suominen MH. Tailored nutritional guidance for home-dwelling AD families: the Feasibility of and Elements Promoting Positive Changes in Diet (NuAD-Trial). J Nutr Health Aging 2015; 19:454-9. [PMID: 25809810 DOI: 10.1007/s12603-014-0567-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To describe the process and feasibility of our randomised, controlled intervention study (NuAD trial) that positively affected the nutrition and quality of life, and prevented falls of home-dwelling persons with Alzheimer disease (AD). DESIGN, SETTING, PARTICIPANTS This qualitative study comprised 40 persons with AD and spousal caregivers of our trial. Our intervention during one year involved tailored nutritional guidance for these couples. The nutritionist's field notes (about 100 pages) and the participant feedback questionnaires (N = 28) served to analyse the feasibility of intervention, factors promoting the application of intervention and challenges hindering it. Thematic content analysis served to analyse our data with the grounded theory approach. RESULTS We identified several positive elements promoting better nutrition: positive attitudes on nutrition to participants including a participant-centred approach, positive feedback, findings of food diaries and practical suggestions. Home visits by the nutritionist were convenient and participants felt that someone cares. Group meetings which included protein-rich snacks strengthened the nutritional message by enabling discussions and socialising. The oral nutritional supplements (ONS) helped participants to regain their energy and to motivate them to exercise and make changes in their diets. Obstacles to making changes in diets included participants' false ideas about nutrition, especially with regard to weight gain. Health problems and functional limitations hampered food management, and some families had inveterate eating habits. The positive feedback from participants indicated the feasibility of our tailored nutritional guidance. CONCLUSIONS Assessment-based, tailored nutritional guidance implemented with a personal and positive approach may inspire and empower AD families to make positive changes in their diets, leading them to improved nutrition and quality of life.
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Affiliation(s)
- T M Puranen
- T.M. Puranen, Department of General Practice and Primary Health Care, University of Helsinki, Finland,
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Laurent M, Bastuji-Garin S, Plonquet A, Bories P, Le Thuaut A, Audureau E, Lang P, Nakib S, Liuu E, Canoui-Poitrine F, Paillaud E. Interrelations of immunological parameters, nutrition, and healthcare-associated infections: Prospective study in elderly in-patients. Clin Nutr 2015; 34:79-85. [DOI: 10.1016/j.clnu.2014.01.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 01/05/2014] [Accepted: 01/16/2014] [Indexed: 01/15/2023]
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Davison G, Kehaya C, Wyn Jones A. Nutritional and Physical Activity Interventions to Improve Immunity. Am J Lifestyle Med 2014; 10:152-169. [PMID: 30202268 DOI: 10.1177/1559827614557773] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 12/17/2022] Open
Abstract
Physical activity and nutrition are important in a healthy lifestyle with potential benefits to immunity often overlooked. Infection of the upper respiratory tract, and the associated symptoms, are the most frequent presentations to general practitioners and may have significant economic and social impact. In this review, we consider the role of physical activity and nutrition in improving immunity. Evidence suggests that regular moderate activity is particularly beneficial for immune enhancement and reducing the risk of infection. We also discuss some nutritional strategies. Unfortunately, the evidence for many is weak. Avoiding nutritional deficiencies seems the most pragmatic recommendation. This can be achieved with a balanced diet. Including a variety of fruits and vegetables may help ensure adequate intake of essential nutrients with little risk of excess intake of any single nutrient. Supplementation with individual nutrients is generally not recommended. Multinutrients may be beneficial for those with a preexisting deficiency but not if normal dietary intake is sufficient. Further benefit may be gained from some supplements including probiotics, bovine colostrum, and some plant-derived products (Echinacea, black elderberry, and some polyphenols) but only in specific situations/contexts. Individuals should consider their personal needs, use caution, and avoid the indiscriminate use of supplements.
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Affiliation(s)
- Glen Davison
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
| | - Corinna Kehaya
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
| | - Arwel Wyn Jones
- School of Sport and Exercise Sciences, University of Kent, Kent, UK (GD, CK).,The Department of Sport and Exercise Science, Aberystwyth University, Aberystwyth, UK (AWJ).,The Clinical Research Centre, Prince Phillip Hospital, Llanelli, UK (AWJ)
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Chen JY, Cheng TJ, Chang CY, Lan KM, Weng SF, Sheu MJ, Tseng SF, Hu ML. Increased incidence of herpes zoster in adult patients with peptic ulcer disease: a population-based cohort study. Int J Epidemiol 2014; 42:1873-81. [PMID: 24536094 DOI: 10.1093/ije/dyt213] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Peptic ulcer disease (PUD) has been linked to immunological dysfunctions and malnutrition—both are predictors of herpes zoster(HZ). We hypothesized that PUD patients might have a greater risk for developing HZ. METHODS Using the longitudinal National Health Insurance Research Database, we conducted a retrospective population-based cohort study to evaluate the incidence of HZ in adult PUD patients and controls matched by age and gender. Kaplan-Meier analysis and Cox regression were conducted to compare differences in the development of HZ. The effects of comorbidities on the risk of HZ and the associations between different risk factors of PUD and HZ were assessed by subgroup analyses. RESULTS We identified 41 229 adults PUD patients and 41 229 controls. Over an 8-year follow-up, the cumulative incidence of HZ in PUD patients(11.76/1000 person-years) was significantly higher than controls(6.56/1000 person-years) (P<0.001, by log-rank test). After adjusting for potential confounders, PUD was an independent predictor for HZ (adjusted hazard ratio: 1.77, 95% confidence interval 1.64–1.91, P<0.001). Major risk factors of PUD were non-selective nonsteroidal anti-inflammatory drugs (nsNSAID) usage and Helicobacter pylori infection. Subgroup analyses revealed that PUDis an independent predictor of HZ after excluding the potential confounding effects of the comorbidities; PUD associated with the combination of nsNSAID usage and Helicobacter pylori infection leads to greatest risk of HZ. CONCLUSIONS Adults with PUD are at increased risk of HZ independently compared with the general population. Further studies are required to clarify the nature of the associations between HZ and PUD.
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Boraschi D, Italiani P. Immunosenescence and vaccine failure in the elderly: Strategies for improving response. Immunol Lett 2014; 162:346-53. [DOI: 10.1016/j.imlet.2014.06.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 06/09/2014] [Accepted: 06/12/2014] [Indexed: 12/21/2022]
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Puranen TM, Pietila SE, Pitkala KH, Kautiainen H, Raivio M, Eloniemi-Sulkava U, Jyvakorpi SK, Suominen M. Caregivers' male gender is associated with poor nutrient intake in AD families (NuAD-trial). J Nutr Health Aging 2014; 18:672-6. [PMID: 25226105 DOI: 10.1007/s12603-014-0499-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE Alzheimer patients (AD) are known to be at risk for malnutrition and their older spouses may also have nutritional problems. The aim of our study was to clarify the association of caregivers' sex on the nutrient intake of AD couples. SETTING Our study uses the baseline data of a randomized nutritional trial exploring the effectiveness of nutrition intervention among home-dwelling AD patients. PARTICIPANTS The central AD register in Finland was used to recruit AD patients living with a spousal caregiver, 99 couples participated in our study. MEASUREMENTS Nutritional status was assessed using the Mini-Nutritional Assessment (MNA). Nutrient intakes for both AD patients and their spouses were calculated from 3-day food diaries. RESULTS The mean age of caregivers and AD spouses was 75.2 (SD 7.0) and 77.4 years (SD 5.6), respectively. According to the MNA, 40% of male and 52% of female AD spouses were at risk for malnutrition. Among male caregivers, the mean energy and protein intakes were 1605 kcal (SD 458) and 0.93 g/body kg (SD 0.30), whereas the respective figures for their female AD spouses were 1313 kcal (SD 340) and 0.86 g/body kg (SD 0.32), respectively. Among female caregivers, the mean energy and protein intakes were 1536 kcal (SD 402) and 1.00 g/body kg (SD 0.30), whereas the respective figures for their male AD spouses were 1897 kcal (SD 416) and 1.04 g/body kg (SD 0.30). The interaction between male caregiver sex and lower energy (p<0.001) and lower protein intake (p=0.0048) (adjusted for age and MMSE) was significant. Similar differences between caregiver sexes were observed with the intake of various nutrients. CONCLUSIONS A gender difference exists in the ability to cope with caregiver responsibilities related to nutrition. A need exists for tailored nutritional guidance among older individuals and especially among male caregivers.
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Affiliation(s)
- T M Puranen
- Merja Suominen, PhD, Unit of Primary Health Care, Helsinki University Central Hospital and Department of General Practice and Primary Health Care, University of Helsinki, Finland,
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Mann T, Heuberger R, Wong H. The association between chewing and swallowing difficulties and nutritional status in older adults. Aust Dent J 2014; 58:200-6. [PMID: 23713640 DOI: 10.1111/adj.12064] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2012] [Indexed: 02/05/2023]
Abstract
BACKGROUND The aim of this study was to investigate the associations of chewing and swallowing dysfunctions to nutritional status in older adults. METHODS This cross-sectional study comprised a convenience sample of 1065 community-dwelling older adults living in rural United States. Dietary assessment included the Block Full Length Food Frequency Questionnaire, 24-hour Food Intake Recall and Mini Nutritional Assessment. Classification of chewing and swallowing difficulties was determined by a criterion of outlined factors. RESULTS In our sample, 113 (11%) had chewing difficulties, 51 (5%) had swallowing difficulties, and 11 (1%) had both. Compared to the Dietary Reference Intakes (DRIs), the study population was deficient in calories and several nutrients. Mean daily intake in individuals reporting chewing, swallowing, or difficulties with both were 1489 ± 360, 1461 ± 374 and 1374 ± 240 calories respectively. There was no statistically significant difference between the groups. Vitamin A, vitamin E and manganese were significantly lower in those with chewing difficulties while vitamin E and magnesium were significantly lower in individuals with swallowing difficulties (p < 0.05). CONCLUSIONS These results emphasize the importance of chewing and swallowing difficulties in modulating nutritional outcomes in older adults. These co-morbidities should be monitored in this population and intake of nutrient dense foods should be increased in those at risk.
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Affiliation(s)
- T Mann
- Department of Human Environmental Studies, Central Michigan University, Mount Pleasant, Michigan 48859, USA
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Nutrition, diet and immunosenescence. Mech Ageing Dev 2013; 136-137:116-28. [PMID: 24373813 DOI: 10.1016/j.mad.2013.12.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 12/05/2013] [Accepted: 12/16/2013] [Indexed: 01/10/2023]
Abstract
Ageing is characterized by immunosenescence and the progressive decline in immunity in association with an increased frequency of infections and chronic disease. This complex process affects both the innate and adaptive immune systems with a progressive decline in most immune cell populations and defects in activation resulting in loss of function. Although host genetics and environmental factors, such as stress, exercise and diet can impact on the onset or course of immunosenescence, the mechanisms involved are largely unknown. This review focusses on identifying the most significant aspects of immunosenescence and on the evidence that nutritional intervention might delay this process, and consequently improve the quality of life of the elderly.
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Lang PO. Why Influenza Viruses Continue to Pose a Significant Threat to Aging and Aged Populations Worldwide. CURRENT GERIATRICS REPORTS 2013. [DOI: 10.1007/s13670-013-0070-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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A consideration of biomarkers to be used for evaluation of inflammation in human nutritional studies. Br J Nutr 2013; 109 Suppl 1:S1-34. [PMID: 23343744 DOI: 10.1017/s0007114512005119] [Citation(s) in RCA: 250] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To monitor inflammation in a meaningful way, the markers used must be valid: they must reflect the inflammatory process under study and they must be predictive of future health status. In 2009, the Nutrition and Immunity Task Force of the International Life Sciences Institute, European Branch, organized an expert group to attempt to identify robust and predictive markers, or patterns or clusters of markers, which can be used to assess inflammation in human nutrition studies in the general population. Inflammation is a normal process and there are a number of cells and mediators involved. These markers are involved in, or are produced as a result of, the inflammatory process irrespective of its trigger and its location and are common to all inflammatory situations. Currently, there is no consensus as to which markers of inflammation best represent low-grade inflammation or differentiate between acute and chronic inflammation or between the various phases of inflammatory responses. There are a number of modifying factors that affect the concentration of an inflammatory marker at a given time, including age, diet and body fatness, among others. Measuring the concentration of inflammatory markers in the bloodstream under basal conditions is probably less informative compared with data related to the concentration change in response to a challenge. A number of inflammatory challenges have been described. However, many of these challenges are poorly standardised. Patterns and clusters may be important as robust biomarkers of inflammation. Therefore, it is likely that a combination of multiple inflammatory markers and integrated readouts based upon kinetic analysis following defined challenges will be the most informative biomarker of inflammation.
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Does vitamin D deficiency contribute to further impinge the state of vulnerability to infections of aging and aged adults? Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2012.11.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Saarela RKT, Soini H, Muurinen S, Suominen MH, Pitkälä KH. Oral hygiene and associated factors among frail older assisted living residents. SPECIAL CARE IN DENTISTRY 2012; 33:56-61. [PMID: 23451925 DOI: 10.1111/j.1754-4505.2012.00314.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to determine the associations of older assisted living residents' tooth brushing habits with health and nutritional status. We assessed the tooth brushing habits, nutritional status, oral health, use of dental services, and morbidity of 1,447 assisted living residents in the Helsinki metropolitan area of Finland. Of the residents, 17% did not clean or had not cleaned their teeth and/or dentures daily. Those not cleaning their teeth and/or dentures daily were more often male, less educated and had a mean length of stay in assisted living longer than those who cleaned their teeth and/or dentures daily. They were more often malnourished and dependent in ADLs. In addition they more often had poorer oral health and used fewer dental services. Poor tooth brushing habits indicate poor oral and subjective health. More attention should focus on the oral hygiene of frail older assisted living residents.
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Chen JY, Chang CY, Lin YS, Hu ML. Nutritional Factors in Herpes Zoster, Postherpetic Neuralgia, and Zoster Vaccination. Popul Health Manag 2012; 15:391-7. [DOI: 10.1089/pop.2012.1563] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Jen-Yin Chen
- Department of Anesthesiology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Food Science and Applied Biotechnology, National Chung Hsing University, Taichung, Taiwan
- Department of the Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Chia-Yu Chang
- Department of Neurology, Chi Mei Medical Center, Tainan, Taiwan
- Institute of Biotechnology, Southern Taiwan University, Tainan, Taiwan
| | - Yung-Song Lin
- Department of Otolaryngology, Chi Mei Medical Center, Tainan, Taiwan
- Department of Otolaryngology, Taipei Medical University, Taiwan
| | - Miao-Lin Hu
- Department of Food Science and Applied Biotechnology, National Chung Hsing University, Taichung, Taiwan
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Gibson A, Edgar JD, Neville CE, Gilchrist SECM, McKinley MC, Patterson CC, Young IS, Woodside JV. Effect of fruit and vegetable consumption on immune function in older people: a randomized controlled trial. Am J Clin Nutr 2012; 96:1429-36. [PMID: 23134881 DOI: 10.3945/ajcn.112.039057] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Fruit and vegetable (FV) intake, which is often low in older people, is associated with reduced chronic disease risk. OBJECTIVE We determined whether increased FV intake improves measures of immune function. DESIGN We conducted a randomized controlled trial (The Ageing and Dietary Intervention Trial) in 83 healthy volunteers aged 65-85 y with low FV intakes (≤2 portions/d); 82 subjects completed the intervention. Participants were assigned to continue their normal diets or to consume ≥5 FV portions/d for 16 wk. At 12 wk, tetanus toxoid (0.5 mL intramuscular) and Pneumovax II vaccine (0.5 mL intramuscular; both vaccines from Sanofi Pasteur) were administered. FV intake was monitored by using diet histories, and biomarkers of nutritional status were assessed. The primary endpoint was the antibody response to vaccination. Specific antibodies binding to tetanus toxoid (total IgG) and pneumococcal capsular polysaccharide (total IgG and IgG2) were assessed at baseline and 16 wk. Participants were recruited between October 2006 and June 2008. RESULTS The change in FV consumption differed significantly between groups [mean change in number of portions (95% CI): in the 2-portion/d group, 0.4 portions/d (0.2, 0.7 portions/d); in the 5-portion/d group, 4.6 portions/d (4.1, 5.0 portions/d); P < 0.001)] and also in micronutrient status. Antibody binding to pneumococcal capsular polysaccharide (total IgG) increased more in the 5-portion/d group than in the 2-portion/d group [geometric mean (95% CI) of the week 16:baseline ratio: 3.1 (2.1, 4.4) and 1.7 (1.3, 2.1), respectively; P = 0.005)]. There was no significant difference in the increases in antibody binding to tetanus toxoid. CONCLUSION Increased FV intake improves the Pneumovax II vaccination antibody response in older people, which links an achievable dietary goal with improved immune function.
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Affiliation(s)
- Andrew Gibson
- Centre for Public Health, Queen's University Belfast, Institute of Clinical Science B, Belfast, United Kingdom
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Akatsu H, Iwabuchi N, Xiao JZ, Matsuyama Z, Kurihara R, Okuda K, Yamamoto T, Maruyama M. Clinical effects of probiotic Bifidobacterium longum BB536 on immune function and intestinal microbiota in elderly patients receiving enteral tube feeding. JPEN J Parenter Enteral Nutr 2012. [PMID: 23192454 DOI: 10.1177/0148607112467819] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Immune system function declines with age. We evaluated the effects of supplementation with the probiotic Bifidobacterium longum BB536 on immune function and intestinal microbiota in the elderly. MATERIALS AND METHODS In a double-blind study, 45 elderly patients fed by enteral tube feeding (mean [SD] age 81.7 [8.7] years) were given BB536 (n = 23) or a placebo powder (n = 22) for 12 weeks and were observed for an additional 4 weeks posttreatment. At week 4, all patients received an influenza vaccination (A/H1N1, A/H3N2, and B). Clinical data were assessed, including body temperature, bowel movements, fecal microbiota, and immunological biomarkers in blood. RESULTS BB536 intake significantly increased cell numbers of bifidobacteria in fecal microbiota. There was a tendency toward an increase (P = .085 at week 4 and P = .070 at week 16) of serum IgA in the BB536 group compared with the placebo group. BB536 intake did not significantly affect hemagglutination inhibition (HI) titers in response to the influenza vaccine. Natural killer (NK) cell activity decreased significantly in the placebo group during the intervention but not in the BB536 group. Among those subjects with low NK cell activity (<55%, n = 10 for each group), a significant intergroup difference (P < .05) was observed in the changed values from baseline of NK cell activity at weeks 8 and 12. CONCLUSIONS These results shed new light on the potential of long-term ingestion of BB536 in increasing the cell number of bifidobacteria in intestinal microbiota and modulating immune function in the elderly.
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Affiliation(s)
- Hiroyasu Akatsu
- Choju Medical Institute, Fukushimura Hospital, Toyohashi, Aichi, Japan.
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Lang PO, Samaras D, Samaras N. Testosterone Replacement Therapy in Reversing “Andropause”: What Is the Proof-of-Principle? Rejuvenation Res 2012; 15:453-65. [DOI: 10.1089/rej.2012.1316] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Pierre Olivier Lang
- Medical School and University Hospitals of Geneva, Department of Internal Medicine, Rehabilitation and Geriatrics, Geneva, Switzerland
- Translational Medicine Research Group, Cranfield Health, Cranfield University, Cranfield, United Kingdom
| | - Dimitrios Samaras
- Medical School and University Hospitals of Geneva, Nutrition Unit, Geneva, Switzerland
| | - Nikolaos Samaras
- Medical School and University Hospitals of Geneva, Department of Internal Medicine, Rehabilitation and Geriatrics, Geneva, Switzerland
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Lang PO, Aspinall R. Immunosenescence and herd immunity: with an ever-increasing aging population do we need to rethink vaccine schedules? Expert Rev Vaccines 2012; 11:167-76. [PMID: 22309666 DOI: 10.1586/erv.11.187] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Vaccination is a powerful public health tool that has been of tremendous benefit in protecting vulnerable populations from specific infections. Moreover, in addition to the direct benefits to vaccinated individuals, the indirect effects of protection at the community level have also been demonstrated and termed 'herd immunity'. The predicted demographic shift in the population landscape towards an ever-increasing aging population and the evidence suggesting that older individuals produce less-than-optimal vaccine responses have raised the question of rethinking vaccine schedules. This article provides evidence that even if herd immunity might be an option to indirectly protect the aging and aged adult population, the highest priorities for the near future must be to understand how vaccine responses in older individuals can be improved, to break down the public, cultural, societal and political barriers to vaccination and to counter the antivaccination movement that inhibits the worldwide spread of lifelong immunization programs.
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Affiliation(s)
- Pierre Olivier Lang
- Department of Internal Medicine, Rehabilitation & Geriatrics, Medical School & University Hospitals of Geneva, Hospital of Trois-Chêne, Chemin du Pont-Bochet 3, CH-1226 Thônex-Geneva, Geneva, Switzerland.
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Abstract
The frailty syndrome is defined as unintentional weight and muscle loss, exhaustion, and declines in grip strength, gait speed, and activity. Evidence with respect to the clinical definition, epidemiology, mechanisms, interactions, assessment, prevention, and treatment of frailty in the older adult is reviewed.
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Affiliation(s)
- Roschelle A Heuberger
- Department of Human Environmental Studies, Central Michigan University, Mt. Pleasant, Michigan 48859, USA.
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Lang PO, Samaras D. Aging adults and seasonal influenza: does the vitamin d status (h)arm the body? J Aging Res 2011; 2012:806198. [PMID: 22162810 PMCID: PMC3228300 DOI: 10.1155/2012/806198] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Accepted: 08/23/2011] [Indexed: 02/06/2023] Open
Abstract
Vitamin D (VitD), although originally described as an essential hormone for bone and mineral homeostasis, appears to have an active role in regulating specific facets of human immunity. Indeed, VitD has been shown to have significant effects on cytokine production and lymphocyte proliferation. Evidence that VitD affects clearance of selected pathogens is supported by epidemiological and clinical data, while its coadministration with influenza vaccine in mice enhanced both mucosal and systemic antibody responses. This paper aims to examine how VitD may contribute to limiting the burden of influenza infection in the aging and aged adults, a population in which this burden remains considerable. Furthermore, we discuss how VitD status may play a role in host resistance to influenza virus and influence the immunogenicity of the influenza vaccines currently licensed for adults aged 65 years or over by its effects on innate and adaptive immunities.
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Affiliation(s)
- Pierre Olivier Lang
- Department of Internal Medicine, Rehabilitation and Geriatrics, Medical School and University Hospitals of Geneva, Hospital of Trois-Chêne, Chemin du Pont-Bochet 3, CH-1226 Thônex-Geneva, Switzerland
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Vikstedt T, Suominen MH, Joki A, Muurinen S, Soini H, Pitkälä KH. Nutritional Status, Energy, Protein, and Micronutrient Intake of Older Service House Residents. J Am Med Dir Assoc 2011; 12:302-7. [DOI: 10.1016/j.jamda.2010.12.098] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 12/20/2010] [Accepted: 12/20/2010] [Indexed: 10/18/2022]
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Mocchegiani E, Costarelli L, Giacconi R, Piacenza F, Basso A, Malavolta M. Zinc, metallothioneins and immunosenescence: effect of zinc supply as nutrigenomic approach. Biogerontology 2011; 12:455-65. [PMID: 21503725 DOI: 10.1007/s10522-011-9337-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Accepted: 04/10/2011] [Indexed: 01/09/2023]
Abstract
Ageing is an inevitable biological process associated with gradual and spontaneous biochemical and physiological changes and increased susceptibility to diseases. Nutritional factor, zinc, known to be involved in improving immunity, may remodel some of the age-associated changes, leading to a healthy ageing. "In Vitro" studies involving human lymphocytes exposed to endotoxins, and "in vivo" studies comparing old and young mice fed with low dietary zinc suggest that zinc is important for both innate and adaptive immune efficiency, and more optimal inflammatory/immune response. The intracellular zinc homeostasis is mainly regulated by Metallothioneins (MT), via ion release through the reduction of thiol groups in MT molecule. These processes are crucial because mediating the zinc signalling within the immune cells assigning to zinc a role of "second messenger". Zinc homeostasis is altered in ageing partly due to higher expression levels of MT, leading to an increased sequestration of zinc, resulting in less availability of free intracellular zinc. Improvement of immune functions and stress response systems occurs in elderly after physiological zinc supplementation. The main reason behind these effects seems to be related to a like "hormetic" response induced by zinc. However, the choice of old subjects for zinc supplementation has to be performed in relationship to the specific genetic background of MT and pro-inflammatory cytokine (IL-6) because the latter is involved both in MT gene expression and in intracellular zinc homeostasis. Old subjects carrying GG genotypes (termed C- carriers) in IL-6--174G/C locus display increased IL-6 production, low intracellular zinc ion availability, impaired innate immune response and enhanced MT. By contrast, old subjects carrying GC and CC genotypes (termed C+ carriers) in the same IL-6--174 locus displayed satisfactory intracellular zinc and innate immune response. Moreover, male carriers of C+ allele are more prone to reach centenarian age than C- ones. Therefore, old C- subjects are likely to benefit more from zinc supplementation restoring NK cell cytotoxicity and improving the zinc status. Plasma zinc deficiency and the altered immune response is more evident when the genetic variations of IL-6 polymorphism are associated with the genetic variations of MT1A in position +647, suggesting that the genetic variations of IL-6 and MT1A are very useful tools for the identification of old people who effectively need zinc supplementation.
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Affiliation(s)
- Eugenio Mocchegiani
- Nutrition and Ageing Centre, Italian National Research Centres on Ageing (INRCA), Via Birarelli 8, 60121, Ancona, Italy.
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Lang PO, Govind S, Michel JP, Aspinall R, Mitchell WA. Immunosenescence: Implications for vaccination programmes in adults. Maturitas 2011; 68:322-30. [PMID: 21316879 DOI: 10.1016/j.maturitas.2011.01.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 01/17/2011] [Indexed: 01/10/2023]
Affiliation(s)
- Pierre Olivier Lang
- Department of Internal Medicine, Rehabilitation and Geriatrics, Medical School and University Hospitals of Geneva, Geneva, Switzerland.
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Lomivorotov VV, Efremov SM, Boboshko VA, Leyderman IN, Lomivorotov VN, Cheung AT, Karaskov AM. Preoperative total lymphocyte count in peripheral blood as a predictor of poor outcome in adult cardiac surgery. J Cardiothorac Vasc Anesth 2011; 25:975-80. [PMID: 21354824 DOI: 10.1053/j.jvca.2010.12.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Indexed: 11/11/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the prognostic value of the preoperative total lymphocyte count in peripheral blood as a predictor of postoperative complications and mortality in cardiac surgery. DESIGN A retrospective, observational study. SETTING The Novosibirsk State Research Institute of Circulation Pathology (single institution). PARTICIPANTS All adults undergoing primary cardiopulmonary bypass in 2009. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS The cohort size was 1,368 patients operated upon with cardiopulmonary bypass. Patient characteristics, hospital mortality, postoperative complications, ventilation time, intensive care unit, and hospital stay were analyzed. A preoperative total lymphocyte count <1,500 cells/μL was associated with significantly higher mortality by univariate (p < 0.0001) and multivariate (p < 0.044) analyses. A low preoperative total lymphocyte count was associated with more frequent inotropic support (p < 0.001); postoperative heart arrhythmia (p < 0.001); dialysis-dependent acute renal failure (p < 0.001); and a prolonged ventilation time (p = 0.001), intensive care unit stay (p < 0.001), and hospital stay (p = 0.007). CONCLUSIONS A low preoperative total lymphocyte count in peripheral blood is a useful prognostic criterion for the evaluation of a complicated postoperative period in cardiac patients operated under cardiopulmonary bypass.
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Affiliation(s)
- Vladimir V Lomivorotov
- Department of Anaestesiology and Intensive Care, Federal State Institution Academician EN Meshalkin Novosibirsk State Research Institute of Circulation Pathology Rusmedtechnology, Novosibirsk, Russia
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Hardin-Fanning F, Boissonneault GA, Lennie TA. Polyunsaturated fatty acids. Immunomodulators in older adults. J Gerontol Nurs 2011; 37:20-8. [PMID: 21323237 DOI: 10.3928/00989134-20110201-01] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Accepted: 09/07/2010] [Indexed: 11/20/2022]
Abstract
The immune system tends to become less efficient as people age, and nutrition plays a significant role in older adults' immune responses. In particular, dietary fatty acids are precursors to important immune system components. Certain fatty acids, predominantly those that are polyunsaturated, also tend to decrease the risk of certain neurological diseases in older adults. This article describes the impact of dietary polyunsaturated fatty acids (PUFA) on older adults' immune system and discusses the roles of age and immune status with regard to PUFA supplements.
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Affiliation(s)
- Frances Hardin-Fanning
- Heart Program, College of Nursing, University of Kentucky College of Nursing, Lexington, KY40536, USA.
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Kvamme JM, Holmen J, Wilsgaard T, Florholmen J, Midthjell K, Jacobsen BK. Body mass index and mortality in elderly men and women: the Tromso and HUNT studies. J Epidemiol Community Health 2011; 66:611-7. [PMID: 21321065 PMCID: PMC3368492 DOI: 10.1136/jech.2010.123232] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The impact of body mass index (BMI; kg/m(2)) and waist circumference (WC) on mortality in elderly individuals is controversial and previous research has largely focused on obesity. METHODS With special attention to the lower BMI categories, associations between BMI and both total and cause-specific mortality were explored in 7604 men and 9107 women aged ≥ 65 years who participated in the Tromsø Study (1994-1995) or the North-Trøndelag Health Study (1995-1997). A Cox proportional hazards model adjusted for age, marital status, education and smoking was used to estimate HRs for mortality in different BMI categories using the BMI range of 25-27.5 as a reference. The impact of each 2.5 kg/m(2) difference in BMI on mortality in individuals with BMI < 25.0 and BMI ≥ 25.0 was also explored. Furthermore, the relations between WC and mortality were assessed. RESULTS We identified 7474 deaths during a mean follow-up of 9.3 years. The lowest mortality was found in the BMI range 25-29.9 and 25-32.4 in men and women, respectively. Mortality was increased in all BMI categories below 25 and was moderately increased in obese individuals. U-shaped relationships were also found between WC and total mortality. About 40% of the excess mortality in the lower BMI range in men was explained by mortality from respiratory diseases. CONCLUSIONS BMI below 25 in elderly men and women was associated with increased mortality. A modest increase in mortality was found with increasing BMI among obese men and women. Overweight individuals (BMI 25-29.9) had the lowest mortality.
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Affiliation(s)
- Jan-Magnus Kvamme
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, N-9037 Tromsø, Norway.
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Saarela R, Lindroos E, Soini H, Suominen MH, Muurinen S, Pitkälä KH. CHEWING PROBLEMS AND MORTALITY. J Am Geriatr Soc 2011; 59:181-3. [DOI: 10.1111/j.1532-5415.2010.03225.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Murine models of premature ageing for the study of diet-induced immune changes: improvement of leucocyte functions in two strains of old prematurely ageing mice by dietary supplementation with sulphur-containing antioxidants. Proc Nutr Soc 2010; 69:651-9. [PMID: 20875196 DOI: 10.1017/s0029665110003848] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Several immune functions are markers of health, biological age and predictors of longevity. A chronic oxidative and inflammatory state is the main cause of ageing and the immune system is involved in the rate of ageing. Thus, several murine models of premature ageing have been proposed owing to their early immunosenescence and oxidative stress, such as ovariectomised rats and mice, obese rats and anxious mice. In the last model, the most extensively studied by us, mice showing anxiety have an aged immune function and redox status as well as a shorter longevity in comparison with animals without anxiety of the same chronological age, being denominated prematurely ageing mice. A confirmation of the above is that the administration of diets supplemented with antioxidants improves the redox status and immune functions and increases the longevity of prematurely ageing mice. Antioxidant precursors of glutathione such as thioproline or N-acetylcysteine, which have a relevant role in ageing, have been the most widely investigated in adult prematurely ageing mice in our laboratory. In the present work, we have studied the effects of the ingestion for 5 weeks of a diet supplemented with 0·1% (w/w) thioproline+N-acetylcysteine on several functions of leucocytes from chronological old (69-73 weeks of age) prematurely ageing mice of two strains (Swiss and BALB/c). The results show an improvement of the immune functions, with their values becoming closer to those in adult animals (24±2 weeks). Thus, an adequate nutrition with antioxidants, even in aged subjects, could be a good strategy to retard ageing.
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