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Ke JP, Li JY, Yang Z, Wu HY, Yu JY, Yang Y, Chen CH, Zhou P, Hua F, Wang W, Hu F, Chu GX, Wan XC, Bao GH. Unraveling anti-aging mystery of green tea in C. elegans: Chemical truth and multiple mechanisms. Food Chem 2024; 460:140510. [PMID: 39033639 DOI: 10.1016/j.foodchem.2024.140510] [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: 03/17/2024] [Revised: 07/05/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Abstract
Tea drinking impacts aging and aging-related diseases. However, knowledge of anti-aging molecules other than the major catechins in complex tea extracts remains limited. Here we used Caenorhabditis elegans to analyze the longevity effects of tea extracts and constituents comprehensively. We found that the hot water extract of green tea prolonged lifespan and heathspan. Further, the MeOH fraction prolonged lifespan significantly longer than other fractions. Correlation analysis between mass spectroscopic data and anti-aging activity suggests that ester-type catechins (ETCs) are the major anti-aging components, including 4 common ETCs, 6 phenylpropanoid-substituted ester-type catechins (PSECs), 5 cinnamoylated catechins (CCs), 7 ester-type flavoalkaloids (ETFs), and 4 cinnamoylated flavoalkaloids (CFs). CFs (200 μM) are the strongest anti-aging ETCs (with the longest 73% lifespan extension). Green tea hot water extracts and ETCs improved healthspan by enhancing stress resistance and reducing ROS accumulation. The mechanistic study suggests that they work by multiple pathways. Moreover, ETCs modulated gut microbial homeostasis, increased the content of short-chain fatty acids, and reduced fat content. Altogether, our study provides new evidence for the anti-aging benefits of green tea and insights into a deep understanding of the chemical truth and multi-target mechanism.
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Affiliation(s)
- Jia-Ping Ke
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Jia-Yi Li
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Zi Yang
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Hao-Yue Wu
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Jing-Ya Yu
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Yi Yang
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Chen-Hui Chen
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China
| | - Peng Zhou
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Fang Hua
- School of Pharmacy, Anhui Xinhua University, Hefei, Anhui, People's Republic of China
| | - Wei Wang
- Anhui Engineering Research Center for Eco-agriculture of Traditional Chinese Medicine, West Anhui University, Lu'an 237012, China
| | - Fenglin Hu
- Engineering Research Center of Fungal Biotechnology, Ministry of Education, Anhui Agricultural University, Hefei, 230036, China.
| | - Gang-Xiu Chu
- School of Information and Artificial Intelligence, Anhui Agricultural University, Hefei, 230036, China.
| | - Xiao-Chun Wan
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China.
| | - Guan-Hu Bao
- Natural Products Laboratory, International Joint Laboratory of Tea Chemistry and Health Effects, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, People's Republic of China; Joint Research Center for Food Nutrition and Health of IHM, Hefei, China.
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2
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Leoste J, Strömberg-Järvis K, Robal T, Marmor K, Kangur K, Rebane AM. Testing scenarios for using telepresence robots in healthcare settings. Comput Struct Biotechnol J 2024; 24:105-114. [PMID: 38314026 PMCID: PMC10837455 DOI: 10.1016/j.csbj.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 02/06/2024] Open
Abstract
The ageing global population puts heavy pressure on healthcare systems everywhere. Addressing ageing-related chronic conditions requires employment of novel innovative solutions. Telehealth technologies, including telepresence robots (TPRs), are being rapidly developed to provide healthcare services efficiently wherever needed. This article explores the role of TPRs in addressing the challenges of providing healthcare to an ageing population, emphasizing their potential advantages and drawbacks. Employing an exploratory research approach with qualitative data collection techniques, we tested three TPR usage scenarios in simulated healthcare settings: anamnesis, measurements, and falls and frailty. The study employed a non-random purposive sample comprising 25 participants, and was conducted at a medical facility in June 2023. The findings suggest that TPRs offer promising solutions for healthcare professionals and patients, especially in scenarios when physical presence is impossible or physical isolation is required to prevent contagion. However, the technology is not yet ready to substitute fully human medical workers, potentially causing patient reluctance and emphasizing the need for patient-centered approaches to technology adoption. In addition, more studies are needed to address ethical, privacy, and scalability concerns.
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Affiliation(s)
- Janika Leoste
- Tallinn University, Narva rd 25, 10120 Tallinn, Estonia
- Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
| | | | - Tarmo Robal
- Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
| | - Kristel Marmor
- Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
| | - Katrin Kangur
- Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
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3
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Pośpiech E, Bar A, Pisarek-Pacek A, Karaś A, Branicki W, Chlopicki S. Epigenetic clock in the aorta and age-related endothelial dysfunction in mice. GeroScience 2024; 46:3993-4002. [PMID: 38381284 PMCID: PMC11226569 DOI: 10.1007/s11357-024-01086-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 01/20/2024] [Indexed: 02/22/2024] Open
Abstract
While epigenetic age (EA) of mouse blood can be determined using DNA methylation analysis at three CpG sites in the Prima1, Hsf4 and Kcns1 genes it is not known whether this approach is useful for predicting vascular biological age. In this study we validated the 3-CpG estimator for age prediction in mouse blood, developed a new predictive model for EA in mouse aorta, and assessed whether epigenetic age acceleration (EAA) measured with blood and aorta samples correlates with age-dependent endothelial dysfunction. Endothelial function was characterized in vivo by MRI in 8-96-week-old C57BL/6 mice. Arterial stiffness was measured by USG-doppler. EA-related changes within 41 CpG sites in Prima1, Kcns1 and Hsf4 loci, were analyzed in the aorta and blood using bisulfite amplicon high-throughput sequencing. Progressive age-dependent endothelial dysfunction and changes in arterial stiffness were observed in 36-96-week-old C57BL/6 mice. Methylation levels of the investigated loci correlated with chronological age in blood and the aorta. The new model for EA estimation in aorta included three cytosines located in the Kcns1 and Hsf4, explained R2 = 87.8% of the variation in age, and predicted age with an mean absolute error of 9.6 weeks in the independent test set. EAA in the aorta was associated with endothelial dysfunction in the abdominal aorta and femoral artery what was consistent with the EAA direction estimated in blood samples. The rate of vascular biological ageing in mice, reflected by the age-dependent systemic endothelial dysfunction, could be estimated using DNA methylation measurements at three loci in aorta and blood samples.
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Affiliation(s)
- Ewelina Pośpiech
- Department of Forensic Genetics, Pomeranian Medical University in Szczecin, Al. Powstancow Wielkopolskich 72, 70-204, Szczecin, Poland
| | - Anna Bar
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Aleksandra Pisarek-Pacek
- Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387, Krakow, Poland
- Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7a, 30-387, Krakow, Poland
| | - Agnieszka Karaś
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348, Krakow, Poland
| | - Wojciech Branicki
- Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Gronostajowa 9, 30-387, Krakow, Poland.
- Institute of Forensic Research, Westerplatte 9, 31-033, Kraków, Poland.
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Bobrzynskiego 14, 30-348, Krakow, Poland.
- Faculty of Medicine, Chair of Pharmacology, Jagiellonian University Medical College, Grzegorzecka 16, 31-531, Krakow, Poland.
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Yusri K, Kumar S, Fong S, Gruber J, Sorrentino V. Towards Healthy Longevity: Comprehensive Insights from Molecular Targets and Biomarkers to Biological Clocks. Int J Mol Sci 2024; 25:6793. [PMID: 38928497 PMCID: PMC11203944 DOI: 10.3390/ijms25126793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Aging is a complex and time-dependent decline in physiological function that affects most organisms, leading to increased risk of age-related diseases. Investigating the molecular underpinnings of aging is crucial to identify geroprotectors, precisely quantify biological age, and propose healthy longevity approaches. This review explores pathways that are currently being investigated as intervention targets and aging biomarkers spanning molecular, cellular, and systemic dimensions. Interventions that target these hallmarks may ameliorate the aging process, with some progressing to clinical trials. Biomarkers of these hallmarks are used to estimate biological aging and risk of aging-associated disease. Utilizing aging biomarkers, biological aging clocks can be constructed that predict a state of abnormal aging, age-related diseases, and increased mortality. Biological age estimation can therefore provide the basis for a fine-grained risk stratification by predicting all-cause mortality well ahead of the onset of specific diseases, thus offering a window for intervention. Yet, despite technological advancements, challenges persist due to individual variability and the dynamic nature of these biomarkers. Addressing this requires longitudinal studies for robust biomarker identification. Overall, utilizing the hallmarks of aging to discover new drug targets and develop new biomarkers opens new frontiers in medicine. Prospects involve multi-omics integration, machine learning, and personalized approaches for targeted interventions, promising a healthier aging population.
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Affiliation(s)
- Khalishah Yusri
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Sanjay Kumar
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Sheng Fong
- Department of Geriatric Medicine, Singapore General Hospital, Singapore 169608, Singapore
- Clinical and Translational Sciences PhD Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jan Gruber
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Science Division, Yale-NUS College, Singapore 138527, Singapore
| | - Vincenzo Sorrentino
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Gastroenterology Endocrinology Metabolism and Amsterdam Neuroscience Cellular & Molecular Mechanisms, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands
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Kvalsvik F, Larsen BH, Eilertsen G, Falkenberg HK, Dalen I, Haaland S, Storm M. Health Needs Assessment in Home-Living Older Adults: Protocol for a Pre-Post Study. JMIR Res Protoc 2024; 13:e55192. [PMID: 38635319 PMCID: PMC11066750 DOI: 10.2196/55192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Conducting a health needs assessment for older adults is important, particularly for early detection and management of frailty. Such assessments can help to improve health outcomes, maintain overall well-being, and support older adults in retaining their independence as they age at home. OBJECTIVE In this study, a systematic approach to health needs assessment is adopted in order to reflect real-world practices in municipal health care and capture the nuances of frailty. The aim is to assess changes in frailty levels in home-living older adults over 5 months and to examine the observable functional changes from a prestudy baseline (t1) to a poststudy period (t2). Additionally, the study explores the feasibility of conducting the health needs assessment from the perspective of home-living older adults and their informal caregivers. METHODS Interprofessional teams of registered nurses, physiotherapists, and occupational therapists will conduct 2 health needs assessments covering physical, cognitive, psychological, social, and behavioral domains. The study includes 40 home-living older adults of 75 years of age or older, who have applied for municipal health and care services in Norway. A quantitative approach will be applied to assess changes in frailty levels in home-living older adults over 5 months. In addition, we will examine the observable functional changes from t1 to t2 and how these changes correlate to frailty levels. Following this, a qualitative approach will be used to examine the perspectives of participants and their informal caregivers regarding the health needs assessment and its feasibility. The final sample size for the qualitative phase will be determined based on the participant's willingness to be interviewed. The quantitative data consist of descriptive statistics, simple tests, and present plots and correlation coefficients. For the qualitative analysis, we will apply thematic analysis. RESULTS The initial baseline assessments were completed in July 2023, and the second health needs assessments are ongoing. We expect the results to be available for analysis in the spring of 2024. CONCLUSIONS This study has potential benefits for not only older adults and their informal caregivers but also health care professionals. Moreover, it can be used to inform future studies focused on health needs assessments of this specific demographic group. The study also provides meaningful insights for local policy makers, with potential future implications at the national level. TRIAL REGISTRATION ClinicalTrials.gov NCT05837728; https://clinicaltrials.gov/study/NCT05837728. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/55192.
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Affiliation(s)
- Fifi Kvalsvik
- Department of Public Health, Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
| | - Bente Hamre Larsen
- Department of Public Health, Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
| | - Grethe Eilertsen
- Research Group of Older Peoples' Health, University of South-Eastern Norway, Drammen, Norway
- Department of Nursing and Health Sciences, University of South-Eastern Norway, Drammen, Norway
| | - Helle K Falkenberg
- Research Group of Older Peoples' Health, University of South-Eastern Norway, Drammen, Norway
- National Centre for Optics, Vision and Eye Care, Department of Optometry, Radiography and Lighting Design, Faculty of Health and Social Sciences, University of South-Eastern Norway, Kongsberg, Norway
| | - Ingvild Dalen
- Section of Biostatistics, Research Department, Stavanger University Hospital, Stavanger, Norway
- Department of Quality and Health Technology, Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
| | - Stine Haaland
- Department of Health and Welfare services, Stavanger kommune, Stavanger, Norway
| | - Marianne Storm
- Department of Public Health, Faculty of Health Sciences, University of Stavanger, Stavanger, Norway
- Faculty of Health Sciences and Social Care, Molde University College, Molde, Norway
- Research Group of Nursing and Health Sciences, Research Department, Stavanger University Hospital, Stavanger, Norway
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Melegari G, Giuliani E, Osmenaj S, Malaguti S, Zoli M, Meletti S, Bertellini E, Mascia L, Barbieri A. Postoperative cognitive worsening in seniors with an age above life expectancy: a prospective longitudinal study. Minerva Anestesiol 2024; 90:135-143. [PMID: 37987991 DOI: 10.23736/s0375-9393.23.17572-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
BACKGROUND The growing number of elderly patients in hospitals is a challenge for healthcare systems. The main objective is to measure the postoperative change in the cognitive status at hospital discharge and one year after discharge in elderly patients undergoing planned or deferrable surgery. METHODS We planned a prospective longitudinal study, single-center study: secondary care level hospital, enrolment from September 2018 to May 2019. We enroll elderly patients, aged above life expectancy in Italy, who underwent planned or deferrable surgery (men over 80.5 years old, women over 85.0 years old). In six months, we enrolled 76 eligible patients. We collected the scores of the clinical impairment scales Charlson Index, Barthel Index, and Six-Item Cognitive Impairment Test (6CIT). The primary endpoint was the postoperative worsening of the cognitive status at one-year follow-up. Secondary endpoints aimed to describe postoperative disabilities and complications, to investigate possible risk factors for cognitive worsening, and to measure the role of anesthesia in cognitive changes. RESULTS We recorded an increased rate of pathological 6CIT values during the hospitalization period, rising from 39.47% to 55.26% (McNemar test, P=0.007), and this rate was still increased at 55.56% (P=0.021) one year after discharge. Anesthesia did not show any significant harmful effect on cognitive status. The preoperative hemoglobin value seems to be a risk factor for cognitive status and one-year mortality. CONCLUSIONS Elderly patients had a significantly worse 6CIT value after planned surgery, which may derive in part from age and in part from hospitalization. It is difficult to determine if general anesthesia alone has no harmful effects on cognitive performance in patients at discharge and one year later. Further data are necessary.
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Affiliation(s)
- Gabriele Melegari
- Department of Anesthesia and Intensive Care, Modena University Hospital, Modena, Italy -
| | | | - Suela Osmenaj
- School of Anesthesia and Intensive Care, University of Modena and Reggio Emilia, Modena, Italy
| | - Silvio Malaguti
- School of Anesthesia and Intensive Care, University of Modena and Reggio Emilia, Modena, Italy
| | - Michele Zoli
- Postgraduate Program in Neurosciences, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Stefano Meletti
- Department of Neurology, Modena University Hospital, Modena, Italy
| | - Elisabetta Bertellini
- Department of Anesthesia and Intensive Care, Modena University Hospital, Modena, Italy
| | - Luciana Mascia
- Department of Anesthesia and Intensive Care, Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Alberto Barbieri
- School of Anesthesia and Intensive Care, University of Modena and Reggio Emilia, Modena, Italy
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7
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Cao B, Xue Y, Liu D. The association between methylmalonic acid, a biomarker of mitochondria dysfunction, and phenotypic age acceleration: A population-based study. Arch Gerontol Geriatr 2024; 117:105176. [PMID: 37713936 DOI: 10.1016/j.archger.2023.105176] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/16/2023] [Accepted: 08/30/2023] [Indexed: 09/17/2023]
Abstract
Phenotypic age acceleration (PAA) is a sensitive marker of biological aging. Circulating methylmalonic acid (MMA) is a novel biomarker of mitochondrial dysfunction and has been associated with age-related disorders. Our study aimed to investigate to what extent circulating MMA was associated with PAA, and whether the association was independent of vitamin B12 status and renal function in the general population. We analyzed cross-sectional data from 13,023 participants across a wide age range (mean age: 38.9 years, range: 12 - 85 years, 51.1% women) from the US National Health and Nutrition Examination Survey (NHANES). PAA was calculated based on the published algorithm. Linear regression models were performed to assess the association between circulating MAA and PAA. Only 31% of the variation in MMA levels was explained by age, sex, race/ethnicity, social economic status, vitamin B12 status, and renal function. Per unit increase in circulating MAA (1.0 nmol/L) was associated with 1.59 years increase in PAA (β = 1.59, 95% CI: 1.17, 2.00, p < 0.001) after adjusting for multiple confounders. Importantly, PAA increased with circulating MMA levels independent of vitamin B12, creatine, and homocysteine levels. The association was more pronounced in subgroups of age ≥ 65 years, women, underweight, vitamin B12 < 400 μmol/L, and homocysteine ≥ 10 μmol/L. The association was much stronger among participants with cardiovascular diseases (CVDs) than without CVDs. In conclusion, our current population-based study showed that mitochondria-derived circulating MMA was associated with increased phenotypic age acceleration in the general population.
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Affiliation(s)
- Bing Cao
- School of Psychology and Key Laboratory of Cognition and Personality (Ministry of Education), Southwest University, Chongqing, 400715, China
| | - Yu Xue
- Department of Clinical Nutrition, West China Hospital, Sichuan University, No.37 Guoxue Lane, Chengdu, Sichuan, China
| | - Dan Liu
- Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
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8
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Alfatah M, Zhang Y, Naaz A, Cheng TYN, Eisenhaber F. PICLS with human cells is the first high throughput screening method for identifying novel compounds that extend lifespan. Biol Direct 2024; 19:8. [PMID: 38254217 PMCID: PMC10804585 DOI: 10.1186/s13062-024-00455-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/18/2024] [Indexed: 01/24/2024] Open
Abstract
Gerontology research on anti-aging interventions with drugs could be an answer to age-related diseases, aiming at closing the gap between lifespan and healthspan. Here, we present two methods for assaying chronological lifespan in human cells: (1) a version of the classical outgrowth assay with quantitative assessment of surviving cells and (2) a version of the PICLS method (propidium iodide fluorescent-based measurement of cell death). Both methods are fast, simple to conduct, cost-effective, produce quantitative data for further analysis and can be used with diverse human cell lines. Whereas the first method is ideal for validation and testing the post-intervention reproductive potential of surviving cells, the second method has true high-throughput screening potential. The new technologies were validated with known anti-aging compounds (2,5-anhydro-D-mannitol and rapamycin). Using the high-throughput screening method, we screened a library of 162 chemical entities and identified three compounds that extend the longevity of human cells.
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Affiliation(s)
- Mohammad Alfatah
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix #07-01, Singapore, 138671, Republic of Singapore.
| | - Yizhong Zhang
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix #07-01, Singapore, 138671, Republic of Singapore
| | - Arshia Naaz
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), 60 Biopolis Street, Genome #02-01, Singapore, 138672, Republic of Singapore
| | - Trishia Yi Ning Cheng
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix #07-01, Singapore, 138671, Republic of Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, Matrix #07-01, Singapore, 138671, Republic of Singapore
- LASA - Lausitz Advanced Scientific Applications gGmbH, Straße der Einheit 2-24, 02943, Weißwasser, Federal Republic of Germany
- School of Biological Sciences (SBS), Nanyang Technological University (NTU), Singapore, 637551, Republic of Singapore
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9
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Gao P, Gao X, Xie B, Tse G, Liu T. Aging and atrial fibrillation: A vicious circle. Int J Cardiol 2024; 395:131445. [PMID: 37848123 DOI: 10.1016/j.ijcard.2023.131445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/17/2023] [Accepted: 10/12/2023] [Indexed: 10/19/2023]
Abstract
Atrial fibrillation (AF) is the commonest sustained cardiac arrhythmia observed in clinical practice. Its prevalence increases dramatically with advancing age. This review article discusses the recent advances in studies investigating the relationship between aging and AF and the possible underlying mechanisms.
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Affiliation(s)
- Pan Gao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Xinyi Gao
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Bingxin Xie
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China; School of Nursing and Health Studies, Hong Kong Metropolitan University, Hong Kong, China
| | - Tong Liu
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China.
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10
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Park SC, Lee YS, Cho KA, Kim SY, Lee YI, Lee SR, Lim IK. What matters in aging is signaling for responsiveness. Pharmacol Ther 2023; 252:108560. [PMID: 37952903 DOI: 10.1016/j.pharmthera.2023.108560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 10/03/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Biological responsiveness refers to the capacity of living organisms to adapt to changes in both their internal and external environments through physiological and behavioral mechanisms. One of the prominent aspects of aging is the decline in this responsiveness, which can lead to a deterioration in the processes required for maintenance, survival, and growth. The vital link between physiological responsiveness and the essential life processes lies within the signaling systems. To devise effective strategies for controlling the aging process, a comprehensive reevaluation of this connecting loop is imperative. This review aims to explore the impact of aging on signaling systems responsible for responsiveness and introduce a novel perspective on intervening in the aging process by restoring the compromised responsiveness. These innovative mechanistic approaches for modulating altered responsiveness hold the potential to illuminate the development of action plans aimed at controlling the aging process and treating age-related disorders.
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Affiliation(s)
- Sang Chul Park
- The Future Life & Society Research Center, Advanced Institute of Aging Science, Chonnam National University, Gwangju 61469, Republic of Korea.
| | - Young-Sam Lee
- Department of New Biology, DGIST, Daegu 42988, Republic of Korea; Well Aging Research Center, Division of Biotechnology, DGIST, Daegu 42988, Republic of Korea.
| | - Kyung A Cho
- Department of Biochemistry, Chonnam National University Medical School, Jeollanam-do 58128, Republic of Korea
| | - Sung Young Kim
- Department of Biochemistry, Konkuk University School of Medicine, Seoul 05029, Republic of Korea
| | - Yun-Il Lee
- Well Aging Research Center, Division of Biotechnology, DGIST, Daegu 42988, Republic of Korea; Interdisciplinary Engineering Major, Department of Interdisciplinary Studies, DGIST, Daegu 42988, Republic of Korea
| | - Seung-Rock Lee
- Department of Biochemistry, Chonnam National University Medical School, Jeollanam-do 58128, Republic of Korea; Department of Biomedical Sciences, Research Center for Aging and Geriatrics, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 61469, Republic of Korea
| | - In Kyoung Lim
- Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
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11
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Kmiołek T, Filipowicz G, Bogucka D, Wajda A, Ejma-Multański A, Stypińska B, Modzelewska E, Kaliberda Y, Radkowski M, Targowski T, Wrona J, Paradowska-Gorycka A. Aging and the impact of global DNA methylation, telomere shortening, and total oxidative status on sarcopenia and frailty syndrome. Immun Ageing 2023; 20:61. [PMID: 37964387 PMCID: PMC10644469 DOI: 10.1186/s12979-023-00384-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023]
Abstract
Aging is a biological event that influences many organs and systems. Both sarcopenia and frailty syndrome refer to geriatric conditions with overlapping phenotypes. Many mechanisms are involved in the aging process such as DNA methylation telomeres which are susceptible to oxidative stress, and inflammations which result in telomere shortening, leading to chromosomal instability. The study aimed to determine the associations between these processes, frailty and sarcopenia syndrome. Global DNA methylation was analyzed using the ELISA method. Telomere length was analyzed using qPCR. Total oxidative status (TOS) was analyzed using a colorimetric method. The present study revealed that the main factor affecting methylation, telomeres length and level of total oxidant stress was age.
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Affiliation(s)
- Tomasz Kmiołek
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland.
| | - Gabriela Filipowicz
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Diana Bogucka
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Anna Wajda
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Adam Ejma-Multański
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Barbara Stypińska
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Ewa Modzelewska
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Yana Kaliberda
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
| | - Marcin Radkowski
- Department of Pathophysiology and Immunology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsaw, Poland
| | - Tomasz Targowski
- Department of Pathophysiology and Immunology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsaw, Poland
| | - Julia Wrona
- Collegium Medicum University of Jan Kochanowski, 25-317, Kielce, Poland
| | - Agnieszka Paradowska-Gorycka
- Department of Molecular Biology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637, Warsawm, Poland
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12
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Marchante M, Ramirez-Martin N, Buigues A, Martinez J, Pellicer N, Pellicer A, Herraiz S. Deciphering reproductive aging in women using a NOD/SCID mouse model for distinct physiological ovarian phenotypes. Aging (Albany NY) 2023; 15:10856-10874. [PMID: 37847151 PMCID: PMC10637815 DOI: 10.18632/aging.205086] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 09/08/2023] [Indexed: 10/18/2023]
Abstract
Female fertility is negatively correlated with age, with noticeable declines in oocyte quantity and quality until menopause. To understand this physiological process and evaluate human approaches for treating age-related infertility, preclinical studies in appropriate animal models are needed. Thus, we aimed to characterize an immunodeficient physiological aging mouse model displaying ovarian characteristics of different stages during women's reproductive life. NOD/SCID mice of different ages (8-, 28-, and 36-40-week-old) were employed to mimic ovarian phenotypes of young, Advanced Maternal Age (AMA), and old women (~18-20-, ~36-38-, and >45-years-old, respectively). Mice were stimulated, mated, and sacrificed to recover oocytes and embryos. Then, ovarian reserve, follicular growth, ovarian stroma, mitochondrial dysfunction, and proteomic profiles were assessed. Age-matched C57BL/6 mice were employed to cross-validate the reproductive outcomes. The quantity and quality of oocytes were decreased in AMA and Old mice. These age-related effects associated spindle and chromosome abnormalities, along with decreased developmental competence to blastocyst stage. Old mice had less follicles, impaired follicle activation and growth, an ovarian stroma inconducive to growth, and increased mitochondrial dysfunctions. Proteomic analysis corroborated these histological findings. Based on that, NOD/SCID mice can be used to model different ovarian aging phenotypes and potentially test human anti-aging treatments.
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Affiliation(s)
- María Marchante
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Department of Pediatrics, Obstetrics and Gynecology, School of Medicine, University of Valencia, Valencia 46010, Spain
| | - Noelia Ramirez-Martin
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Reproductive Medicine Research Group, Instituto Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
| | - Anna Buigues
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Reproductive Medicine Research Group, Instituto Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
| | - Jessica Martinez
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Reproductive Medicine Research Group, Instituto Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
| | - Nuria Pellicer
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- IVIRMA Valencia, Valencia 46015, Spain
| | - Antonio Pellicer
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Reproductive Medicine Research Group, Instituto Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
- IVIRMA Rome, Rome 00197, Italy
| | - Sonia Herraiz
- IVIRMA Global Research Alliance, IVI Foundation, Valencia 46026, Spain
- Reproductive Medicine Research Group, Instituto Investigación Sanitaria La Fe (IIS La Fe), Valencia 46026, Spain
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13
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Andrade AQ, Widagdo I, Lim R, Kelly TL, Parfitt G, Pratt N, Bilton RL, Roughead EE. Correlation of frailty assessment metrics in one-year follow-up of aged care residents: a sub-study of a randomised controlled trial. Aging Clin Exp Res 2023; 35:2081-2087. [PMID: 37452224 PMCID: PMC10520153 DOI: 10.1007/s40520-023-02491-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
INTRODUCTION Frailty is increasingly recognised as a dynamic syndrome, with multiple causes, dimensions and consequences. There is little understanding of how those frailty assessment metrics interact over time. The aim of this study was to describe the longitudinal correlation between five frailty metrics, namely multimorbidity, muscular strength, mood alterations, cognitive capacity, and functional capacity in a cohort study of aged care (nursing home) residents. METHODS 248 aged care residents with Frailty Index at baseline of < 0.4 and no dementia were followed for 12 months. A multimorbidity score and an activity of daily living limitation score were created using individual items of the Frailty Index. Muscular strength was measured by grip strength. Cognitive capacity was measured using the Montreal Cognitive Assessment (MoCA) test. Mood alterations were measured using the anxiety/depression screening question from EQ-5D. We analysed the inter-individual correlation at baseline, association between baseline and future change, and within-individual correlation at baseline, 6 and 12 months. RESULTS Population analysis shows that metrics were not associated at baseline. All of the studied metrics at baseline were associated with change in 12 months, with the exception of anxiety/depression scores. Pairwise within-individual correlation was strong between MoCA and grip strength (0.13, p = 0.02) and activity of daily living (- 0.48, p < 0.001), and between activities of daily living and multimorbidity index (0.28, p < 0.001). No within-individual correlation was found between anxiety depression score and other metrics. CONCLUSION The results suggest an interdependence between comorbidities, physical capacity, cognition and activities of daily living in aged care residents. Comprehensive measurement of frailty-related metrics may provide improved understanding of frailty progression at later life stages.
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Affiliation(s)
- A Q Andrade
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia.
| | - I Widagdo
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia
| | - R Lim
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia
| | - T-L Kelly
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia
| | - G Parfitt
- UniSA Allied Health & Human Performance, University of South Australia, Adelaide, Australia
| | - N Pratt
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia
| | - R L Bilton
- College of Nursing and Health Sciences, Flinders University, Adelaide, Australia
| | - E E Roughead
- UniSA Clinical and Health Sciences, University of South Australia, Adelaide, 5001, Australia
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14
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Moqri M, Herzog C, Poganik JR, Justice J, Belsky DW, Higgins-Chen A, Moskalev A, Fuellen G, Cohen AA, Bautmans I, Widschwendter M, Ding J, Fleming A, Mannick J, Han JDJ, Zhavoronkov A, Barzilai N, Kaeberlein M, Cummings S, Kennedy BK, Ferrucci L, Horvath S, Verdin E, Maier AB, Snyder MP, Sebastiano V, Gladyshev VN. Biomarkers of aging for the identification and evaluation of longevity interventions. Cell 2023; 186:3758-3775. [PMID: 37657418 PMCID: PMC11088934 DOI: 10.1016/j.cell.2023.08.003] [Citation(s) in RCA: 91] [Impact Index Per Article: 91.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 09/03/2023]
Abstract
With the rapid expansion of aging biology research, the identification and evaluation of longevity interventions in humans have become key goals of this field. Biomarkers of aging are critically important tools in achieving these objectives over realistic time frames. However, the current lack of standards and consensus on the properties of a reliable aging biomarker hinders their further development and validation for clinical applications. Here, we advance a framework for the terminology and characterization of biomarkers of aging, including classification and potential clinical use cases. We discuss validation steps and highlight ongoing challenges as potential areas in need of future research. This framework sets the stage for the development of valid biomarkers of aging and their ultimate utilization in clinical trials and practice.
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Affiliation(s)
- Mahdi Moqri
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Genetics, School of Medicine, Stanford University, Stanford, CA, USA; Department of Obstetrics and Gynecology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Chiara Herzog
- European Translational Oncology Prevention and Screening Institute, Universität Innsbruck, Innsbruck, Austria
| | - Jesse R Poganik
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jamie Justice
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Daniel W Belsky
- Department of Epidemiology, Butler Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, NY, USA
| | | | - Alexey Moskalev
- Institute of Biogerontology, Lobachevsky University, Nizhny Novgorod, Russia
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Ageing Research, Rostock University Medical Center, Rostock, Germany; School of Medicine, University College Dublin, Dublin, Ireland
| | - Alan A Cohen
- Department of Environmental Health Sciences, Butler Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Ivan Bautmans
- Gerontology Department, Vrije Universiteit Brussel, Brussels, Belgium; Frailty in Ageing Research Department, Vrije Universiteit Brussel, Brussels, Belgium
| | - Martin Widschwendter
- European Translational Oncology Prevention and Screening Institute, Universität Innsbruck, Innsbruck, Austria; Department of Women's Cancer, EGA Institute for Women's Health, University College London, London, UK; Department of Women's and Children's Health, Division of Obstetrics and Gynaecology, Karolinska Institutet, Stockholm, Sweden
| | - Jingzhong Ding
- Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | | | | | - Jing-Dong Jackie Han
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Center for Quantitative Biology, Peking University, Beijing, China
| | - Alex Zhavoronkov
- Insilico Medicine Hong Kong, Pak Shek Kok, New Territories, Hong Kong SAR, China
| | - Nir Barzilai
- Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Matt Kaeberlein
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, USA
| | - Steven Cummings
- San Francisco Coordinating Center, California Pacific Medical Center Research Institute, San Francisco, CA, USA; Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, USA
| | - Brian K Kennedy
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | | | | | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Andrea B Maier
- Department of Human Movement Sciences, @AgeAmsterdam, Amsterdam Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Centre for Healthy Longevity, @AgeSingapore, National University Health System, Singapore, Singapore
| | - Michael P Snyder
- Department of Genetics, School of Medicine, Stanford University, Stanford, CA, USA.
| | - Vittorio Sebastiano
- Department of Obstetrics and Gynecology, School of Medicine, Stanford University, Stanford, CA, USA.
| | - Vadim N Gladyshev
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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15
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Gao X, Wang B, Huang Y, Wu M, Li Y, Li Y, Zhu X, Wu M. Role of the Nrf2 Signaling Pathway in Ovarian Aging: Potential Mechanism and Protective Strategies. Int J Mol Sci 2023; 24:13327. [PMID: 37686132 PMCID: PMC10488162 DOI: 10.3390/ijms241713327] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
The ovary holds a significant role as a reproductive endocrine organ in women, and its aging process bears implications such as menopause, decreased fertility, and long-term health risks including osteoporosis, cardiovascular disorders, and cognitive decline. The phenomenon of oxidative stress is tightly linked to the aging metabolic processes. More and more studies have demonstrated that oxidative stress impacts both physiologic and pathologic ovarian aging, and the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway plays a crucial role in regulating the antioxidant response. Furthermore, various therapeutic approaches have been identified to ameliorate ovarian aging by modulating the Nrf2 pathway. This review summarizes the important role of the Nrf2/ Kelch-like ECH-associated protein 1 (Keap1) signaling pathway in regulating oxidative stress and influencing ovarian aging. Additionally, it highlights the therapeutic strategies aimed at targeting the Nrf2/Keap1 pathway.
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Affiliation(s)
- Xiaofan Gao
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Bo Wang
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Yibao Huang
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Meng Wu
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Yuting Li
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Yinuo Li
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Xiaoran Zhu
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
| | - Mingfu Wu
- National Clinical Research Center for Obstetrical and Gynecological Diseases, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; (X.G.); (B.W.); (Y.H.); (M.W.); (Y.L.); (Y.L.); (X.Z.)
- Key Laboratory of Cancer Invasion and Metastasis, Ministry of Education, Wuhan 430030, China
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16
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Varela-López A, Romero-Márquez JM, Navarro-Hortal MD, Ramirez-Tortosa CL, Battino M, Forbes-Hernández TY, Quiles JL. Dietary antioxidants and lifespan: Relevance of environmental conditions, diet, and genotype of experimental models. Exp Gerontol 2023; 178:112221. [PMID: 37230336 DOI: 10.1016/j.exger.2023.112221] [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: 03/21/2023] [Revised: 05/21/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023]
Abstract
The rise of life expectancy in current societies is not accompanied, to date, by a similar increase in healthspan, which represents a great socio-economic problem. It has been suggested that aging can be manipulated and then, the onset of all age-associated chronic disorders can be delayed because these pathologies share age as primary underlying risk factor. One of the most extended ideas is that aging is consequence of the accumulation of molecular damage. According to the oxidative damage theory, antioxidants should slow down aging, extending lifespan and healthspan. The present review analyzes studies evaluating the effect of dietary antioxidants on lifespan of different aging models and discusses the evidence on favor of their antioxidant activity as anti-aging mechanisms. Moreover, possible causes for differences between the reported results are evaluated.
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Affiliation(s)
- Alfonso Varela-López
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - José M Romero-Márquez
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - María D Navarro-Hortal
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | | | - Maurizio Battino
- Department of Clinical Sciences, Polytechnic University of Marche, 60131 Ancona, Italy; International Joint Research Laboratory of Intelligent Agriculture and Agri-products Processing, Jiangsu University, Zhenjiang 212013, China
| | - Tamara Y Forbes-Hernández
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Avda del Conocimiento s/n, Parque Tecnologico de la Salud, Armilla, Granada 18016, Spain; Research Group on Foods, Nutritional Biochemistry and Health, Universidad Europea del Atlántico, Isabel Torres, 21, 39011 Santander, Spain; Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, 18016 Granada, Spain.
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17
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Huang X, Ju Z, Zhu J, Zhang R. Multi-Person 2-D Positioning Method Based on 77 GHz FMCW Radar. MICROMACHINES 2023; 14:1246. [PMID: 37374831 DOI: 10.3390/mi14061246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023]
Abstract
As the world's population ages, technologies that enable long-term non-contact monitoring of patients are of great research significance. For this purpose, we propose a multi-person 2-D positioning method based on a 77 GHz FMCW radar. In this method, we first perform beam scanning processing on the data cube acquired by the radar and obtain the distance-Doppler-angle data cube. Then, we eliminate interfering targets through a multi-channel respiratory spectrum superposition algorithm. Finally, we obtain the distance and angle information of the target by the target center selection method. The experimental results show that the proposed method can detect the distance and angle information of multiple people.
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Affiliation(s)
- Xiaohong Huang
- College of Artificial Intelligence, North China University of Science and Technology, Tangshan 063210, China
- Hebei Key Laboratory of Industrial Intelligent Perception, Tangshan 063210, China
| | - Zedong Ju
- College of Artificial Intelligence, North China University of Science and Technology, Tangshan 063210, China
- Hebei Key Laboratory of Industrial Intelligent Perception, Tangshan 063210, China
| | - Jikun Zhu
- College of Artificial Intelligence, North China University of Science and Technology, Tangshan 063210, China
- Hebei Key Laboratory of Industrial Intelligent Perception, Tangshan 063210, China
| | - Rundong Zhang
- College of Management, North China University of Science and Technology, Tangshan 063210, China
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18
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Liu B, Liu Y, Li S, Chen P, Zhang J, Feng L. BDNF promotes mouse follicular development and reverses ovarian aging by promoting cell proliferation. J Ovarian Res 2023; 16:83. [PMID: 37106468 PMCID: PMC10134588 DOI: 10.1186/s13048-023-01163-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 04/16/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) plays an important role in ovarian function including follicle development and oocyte maturation, and embryonic development. However, whether BDNF treatment can reimpose ovarian aging and impaired fertility remains elusive. In this study, we investigated the reproductive outcomes of BDNF treatment and potential mechanisms in aged mice. METHOD "Aged" mice (35-37 weeks old, n = 68) were treated with recombinant human BDNF protein (rhBDNF, 1 µg/200 µL) through daily intraperitoneal (IP) injection for 10 days with/without ovulation induction. Reproductive age mice (8-10 weeks old, n = 28) were treated with ANA 12 (a selective BDNF receptor, TrkB antagonist) through daily IP injection for 5 days with/without ovulation induction. Ovarian function was assessed by ovarian weight, number of follicles, and sex hormone productions. Following induction of ovulation, the number of total oocytes or abnormal oocytes, and blastocyst formation were assessed. Reproductive functions of the mice were evaluated, including pregnancy rate, mating duration for conception, implantation sites, litter size, and weight of offspring. Finally, the molecular mechanism of the effects of BDNF on ovarian cell functions in mice were examined by Western blot and immunofluorescence. RESULTS rhBDNF treatment increased the ovarian weight, number of follicles, number and quality of oocytes including increased blastocysts formation, blood estrogen levels, and pregnancy rate in 35-37-week-old mice. Conversely, BDNF receptor antagonist, ANA 12, treatment decreased the ovarian volume and number of antral follicles and increased the proportion of abnormal oocytes in 8-10-week-old mice. We further demonstrated that BDNF treatment promoted ovarian cell proliferation as well as activation of TrkB and cyclinD1-creb signalling. CONCLUSION We demonstrated that ten consecutive days of daily IP injection of rhBDNF rescued ovarian function in aged mice. Our results further indicate that TrkB and cyclin D1-creb signaling may underlie the BDNF function in ovaries. Targeting BDNF-TrkB signaling is a potential novel therapeutic strategy to reverse ovarian aging.
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Affiliation(s)
- Bin Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Reproduction, Xinhua Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai, China
| | - Yongjie Liu
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shuman Li
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Pingping Chen
- Department of Reproduction, Xinhua Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai, China
| | - Jun Zhang
- Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Liping Feng
- Department of Obstetrics and Gynaecology, Duke University, Durham, NC, USA.
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19
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Vujović S, Ivović M, Tančić Gajić M, Marina L, Jovičić SP, Pavlović N, Jovičić ME. Alzheimer’s Disease and Premature Ovarian Insufficiency. ENDOCRINES 2023. [DOI: 10.3390/endocrines4020020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Estradiol promotes neuronal growth, transmission, survival, myelinization, plasticity, synaptogenesis, and dendritic branching and it improves cognitive function. Alzheimer’s disease (AD) is characterized by amyloid plaques, neurofibrillary tangles, and the loss of neuronal connection in the brain. Genomic analysis has concluded that hypoestrogenism influences the APOE gene and increases the risk of AD. Premature ovarian insufficiency (POI) is defined as oligo/amenorrhea in women below 40 years of age, low estradiol, and high-gonadotropin levels. Early symptoms and signs of POI must be detected in time in order to prevent subsequent complications, such as Alzheimer’s disease. Meta-analysis has shown favorable effects of estrogen in preventing Alzheimer’s. We measured some of the typical markers of AD in women with POI such as interleukin 6 (IL-6), interleukin 8 (IL-8), tissue necrosis factor α (TNFα), TAU1, TREM2, and amyloid precursor proteins (APP). While FSH, LH, and IL-8 were significantly higher in POI group, compared to controls, testosterone and DHEAS were lower. A significant decrease in IL-6 was found in the POI group during a 6-month therapy, as well as an increase in amyloid precursor proteins. CONCLUSION: Neurological complications of POI, such as declining short-term memory, cognitive function, and dementia, have to be promptly stopped by initiating estro-progestogen therapy in POI. A long-term continuation of the therapy would be strongly advised.
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Affiliation(s)
- Svetlana Vujović
- Faculty of Medicine, National Center for Infertility and Endocrinology of Gender, Clinic of Endocrinology, Diabetes and Diseases of Metabolism, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
| | - Miomira Ivović
- Faculty of Medicine, National Center for Infertility and Endocrinology of Gender, Clinic of Endocrinology, Diabetes and Diseases of Metabolism, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
| | - Milina Tančić Gajić
- Faculty of Medicine, National Center for Infertility and Endocrinology of Gender, Clinic of Endocrinology, Diabetes and Diseases of Metabolism, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
| | - Ljiljana Marina
- Faculty of Medicine, National Center for Infertility and Endocrinology of Gender, Clinic of Endocrinology, Diabetes and Diseases of Metabolism, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
| | - Svetlana Pavlović Jovičić
- Faculty of Medicine, Clinic for Nephrology, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
| | - Natalija Pavlović
- Faculty of Medicine, National Center for Infertility and Endocrinology of Gender, Clinic of Endocrinology, Diabetes and Diseases of Metabolism, University Clinical Center, University of Belgrade, 11000 Belgrade, Serbia
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20
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Budală DG, Balcoș C, Armencia A, Virvescu DI, Lupu CI, Baciu ER, Vasluianu RI, Tatarciuc M, Luchian I. Does the Loss of Teeth Have an Impact on Geriatric Patients’ Cognitive Status? J Clin Med 2023; 12:jcm12062328. [PMID: 36983327 PMCID: PMC10058759 DOI: 10.3390/jcm12062328] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
Significant changes in the microstructure of the brain cause dementia and other mental declines associated with aging and disease. Although research has established a connection between oral health and dementia, the underlying pathologic mechanisms are still unknown. Aim: Our aim was to evaluate dentures’ impact on the cognitive state of geriatric patients. Material and methods: A total of 108 individuals seeking treatment at the Faculty of Dental Medicine in Iasi, Romania, participated in the study, which ran from May 2022 to October 2022. Cognitive dysfunction was assessed using the Mini-Mental State Examination. The acquired data were analyzed with IBM SPSS 26.0, and the p-value was set at 0.05. Results: The average value of the MMSE score was 21.81 ± 3.872. Differences between groups of wearer/non-wearer subjects were statistically significant for most of the questions in the questionnaire. Linear regression analysis showed that individuals with a high MMSE score have prosthodontic treatment. A decrease in the MMSE score is associated with a decrease in masticatory efficiency (B = 1.513, p = 0.268). Conclusions: This study provides further evidence that tooth loss is associated with worse cognitive performance. It is thus conceivable that the necessary effects can be achieved by increasing the efforts dedicated to preventing tooth loss in the adult population.
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Affiliation(s)
- Dana Gabriela Budală
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Carina Balcoș
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Correspondence: (C.B.); (M.T.); Tel.: +40-745-533-607 (C.B.); +40-726-687-830 (M.T.)
| | - Adina Armencia
- Department of Surgery, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Dragoș Ioan Virvescu
- Department of Odontology-Periodontology, Fixed Restorations, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Costin Iulian Lupu
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Elena Raluca Baciu
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Roxana Ionela Vasluianu
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
| | - Monica Tatarciuc
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
- Correspondence: (C.B.); (M.T.); Tel.: +40-745-533-607 (C.B.); +40-726-687-830 (M.T.)
| | - Ionuț Luchian
- Department of Odontology-Periodontology, Fixed Restorations, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania
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21
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Taleb NN, West J. Working with Convex Responses: Antifragility from Finance to Oncology. ENTROPY (BASEL, SWITZERLAND) 2023; 25:343. [PMID: 36832709 PMCID: PMC9955868 DOI: 10.3390/e25020343] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 06/07/2023]
Abstract
We extend techniques and learnings about the stochastic properties of nonlinear responses from finance to medicine, particularly oncology, where it can inform dosing and intervention. We define antifragility. We propose uses of risk analysis for medical problems, through the properties of nonlinear responses (convex or concave). We (1) link the convexity/concavity of the dose-response function to the statistical properties of the results; (2) define "antifragility" as a mathematical property for local beneficial convex responses and the generalization of "fragility" as its opposite, locally concave in the tails of the statistical distribution; (3) propose mathematically tractable relations between dosage, severity of conditions, and iatrogenics. In short, we propose a framework to integrate the necessary consequences of nonlinearities in evidence-based oncology and more general clinical risk management.
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Affiliation(s)
| | - Jeffrey West
- Integrated Mathematical Oncology, Moffitt Cancer Center, Tampa, FL 33612, USA
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22
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Bennett DF, Goyala A, Statzer C, Beckett CW, Tyshkovskiy A, Gladyshev VN, Ewald CY, de Magalhães JP. Rilmenidine extends lifespan and healthspan in Caenorhabditis elegans via a nischarin I1-imidazoline receptor. Aging Cell 2023; 22:e13774. [PMID: 36670049 PMCID: PMC9924948 DOI: 10.1111/acel.13774] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 12/02/2022] [Accepted: 12/09/2022] [Indexed: 01/22/2023] Open
Abstract
Repurposing drugs capable of extending lifespan and health span has a huge untapped potential in translational geroscience. Here, we searched for known compounds that elicit a similar gene expression signature to caloric restriction and identified rilmenidine, an I1-imidazoline receptor agonist and prescription medication for the treatment of hypertension. We then show that treating Caenorhabditis elegans with rilmenidine at young and older ages increases lifespan. We also demonstrate that the stress-resilience, health span, and lifespan benefits of rilmenidine treatment in C. elegans are mediated by the I1-imidazoline receptor nish-1, implicating this receptor as a potential longevity target. Consistent with the shared caloric-restriction-mimicking gene signature, supplementing rilmenidine to calorically restricted C. elegans, genetic reduction of TORC1 function, or rapamycin treatment did not further increase lifespan. The rilmenidine-induced longevity required the transcription factors FOXO/DAF-16 and NRF1,2,3/SKN-1. Furthermore, we find that autophagy, but not AMPK signaling, was needed for rilmenidine-induced longevity. Moreover, transcriptional changes similar to caloric restriction were observed in liver and kidney tissues in mice treated with rilmenidine. Together, these results reveal a geroprotective and potential caloric restriction mimetic effect by rilmenidine that warrant fresh lines of inquiry into this compound.
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Affiliation(s)
- Dominic F. Bennett
- Integrative Genomics of Ageing GroupInstitute of Ageing and Chronic Disease, University of LiverpoolLiverpoolUK
| | - Anita Goyala
- Department of Health Sciences and Technology, Laboratory of Extracellular Matrix RegenerationInstitute of Translational Medicine, ETH ZürichSchwerzenbachSwitzerland
| | - Cyril Statzer
- Department of Health Sciences and Technology, Laboratory of Extracellular Matrix RegenerationInstitute of Translational Medicine, ETH ZürichSchwerzenbachSwitzerland
| | - Charles W. Beckett
- Integrative Genomics of Ageing GroupInstitute of Ageing and Chronic Disease, University of LiverpoolLiverpoolUK
| | - Alexander Tyshkovskiy
- Division of Genetics, Department of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA,Belozersky Institute of Physico‐Chemical BiologyMoscow State UniversityMoscowRussia
| | - Vadim N. Gladyshev
- Division of Genetics, Department of MedicineBrigham and Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Collin Y. Ewald
- Department of Health Sciences and Technology, Laboratory of Extracellular Matrix RegenerationInstitute of Translational Medicine, ETH ZürichSchwerzenbachSwitzerland
| | - João Pedro de Magalhães
- Integrative Genomics of Ageing GroupInstitute of Ageing and Chronic Disease, University of LiverpoolLiverpoolUK,Present address:
Institute of Inflammation and AgeingUniversity of Birmingham, Queen Elizabeth HospitalBirminghamUK
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23
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García-Peña C, Tella-Vega P, Medina-Campos RH, García-Hernández H. Introduction: Historical Development and Progression of Clinical Research on Ageing. Subcell Biochem 2023; 103:1-12. [PMID: 37120461 DOI: 10.1007/978-3-031-26576-1_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Research on ageing has developed since Greek times. It had a very slow advance during the Middle Ages and a big increase in the Renaissance. Darwin contributed somehow to the understanding of the ageing process and initiated a cumulus of ageing explications under the name of Evolutionary Theories. Subsequently, science discovered a great number of genes, molecules, and cell processes that intervened in ageing. This led to the beginning of trials in animals to retard or avoid the ageing process. Alongside this, improvements, geriatric clinical investigations (with the evidence-based medicine tools) started to consolidate as a discipline and commenced to show the challenges and deficiencies of actual clinical trials in ageing; the COVID-19 outbreak revealed some of them. The history of clinical research in ageing has already begun and is essential to affront the challenges that the world will face with the increasing ageing population.
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Affiliation(s)
- Carmen García-Peña
- Research Division, Instituto Nacional de Geriatría, Mexico City, Mexico.
| | - Pamela Tella-Vega
- Research Division, Instituto Nacional de Geriatría, Mexico City, Mexico
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24
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Dmitrieva NI, Gagarin A, Liu D, Wu CO, Boehm M. Middle-age high normal serum sodium as a risk factor for accelerated biological aging, chronic diseases, and premature mortality. EBioMedicine 2023; 87:104404. [PMID: 36599719 PMCID: PMC9873684 DOI: 10.1016/j.ebiom.2022.104404] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 11/22/2022] [Accepted: 11/22/2022] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND It is known that some people age faster than others, some people live into old age disease-free, while others develop age-related chronic diseases. With a rapidly aging population and an emerging chronic diseases epidemic, finding mechanisms and implementing preventive measures that could slow down the aging process has become a new challenge for biomedical research and public health. In mice, lifelong water restriction shortens the lifespan and promotes degenerative changes. Here, we test the hypothesis that optimal hydration may slow down the aging process in humans. METHODS We performed a cohort analysis of data from the Atherosclerosis Risk in Communities study with middle-age enrollment (45-66 years, n = 15,752) and 25 years follow-up. We used serum sodium, as a proxy for hydration habits. To estimate the relative speed of aging, we calculated the biological age (BA) from age-dependent biomarkers and assessed risks of chronic diseases and premature mortality. FINDINGS The analysis showed that middle age serum sodium >142 mmol/l is associated with a 39% increased risk to develop chronic diseases (hazard ratio [HR] = 1.39, 95% confidence interval [CI]:1.18-1.63) and >144 mmol/l with 21% elevated risk of premature mortality (HR = 1.21, 95% CI:1.02-1.45). People with serum sodium >142 mmol/l had up to 50% higher odds to be older than their chronological age (OR = 1.50, 95% CI:1.14-1.96). A higher BA was associated with an increased risk of chronic diseases (HR = 1.70, 95% CI:1.50-1.93) and premature mortality (HR = 1.59, 95% CI 1.39-1.83). INTERPRETATION People whose middle-age serum sodium exceeds 142 mmol/l have increased risk to be biologically older, develop chronic diseases and die at younger age. Intervention studies are needed to confirm the link between hydration and aging. FUNDING This work was funded by Intramural Research program of the National Heart, Lung, and Blood Institute (NHLBI). The ARIC study has been funded in whole or in part with federal funds from the NHLBI; the National Institutes of Health (NIH); and the Department of Health and Human Services.
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Affiliation(s)
- Natalia I Dmitrieva
- The Laboratory of Cardiovascular Regenerative Medicine, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA.
| | - Alessandro Gagarin
- The Laboratory of Cardiovascular Regenerative Medicine, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA
| | - Delong Liu
- The Laboratory of Vascular and Matrix Genetics, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA
| | - Colin O Wu
- Office of Biostatistics Research, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA
| | - Manfred Boehm
- The Laboratory of Cardiovascular Regenerative Medicine, National Heart Lung and Blood Institute, Bethesda, MD, 20892, USA
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25
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Yang W, Xia W, Zheng B, Li T, Liu RH. DAF-16 is involved in colonic metabolites of ferulic acid-promoted longevity and stress resistance of Caenorhabditis elegans. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:7017-7029. [PMID: 35689482 DOI: 10.1002/jsfa.12063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/11/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Ferulic acid (FA) is a dietary polyphenol widely found in plant tissues. It has long been considered to have health-promoting qualities. However, the biological properties of dietary polyphenols depend largely on their absorption during digestion, and the effects of their intestinal metabolites on human health have attracted the interest of researchers. This study evaluated the effects of three main colonic metabolites of FA - 3-(3,4-dihydroxyphenyl)propionic acid (3,4diOHPPA), 3-(3-hydroxyphenyl)propionic acid (3OHPPA) and 3-phenylpropionic acid (3PPA) - on longevity and stress resistance in Caenorhabditis elegans. RESULTS Our results showed that 3,4diOHPPA, 3OHPPA and 3PPA extended the lifespan under normal conditions in C. elegans whereas FA did not. High doses of 3,4diOHPPA (0.5 mmol L-1 ), 3OHPPA (2.5 mmol L-1 ) and 3PPA (2.5 mmol L-1 ) prolonged the mean lifespan by 11.2%, 13.0% and 10.6%, respectively. Moreover, 3,4diOHPPA, 3OHPPA and 3PPA treatments promoted stress tolerance against heat, UV irradiation and paraquat. Furthermore, three metabolites ameliorated physical functions, including reactive oxygen species and malondialdehyde levels, motility and pharyngeal pumping rate. The anti-aging activities mediated by 3,4diOHPPA, 3OHPPA and 3PPA depend on the HSF-1 and JNK-1 linked insulin/IGF-1 signaling pathway, which converge onto DAF-16. CONCLUSION The current findings suggest that colonic metabolites of FA have the potential for use as anti-aging bioactivate compounds. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Wenhan Yang
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Wen Xia
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Bisheng Zheng
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Guangdong ERA Food and Life Health Research Institute, Guangzhou, China
| | - Tong Li
- Department of Food Science, Cornell University, Ithaca, New York, USA
| | - Rui Hai Liu
- Department of Food Science, Cornell University, Ithaca, New York, USA
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26
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Xiang Y, Jiang H, Zhao L, Liu Q, Lin H. Delays in Seeking Medical Services in Elderly Patients With Senile Cataract. Front Psychol 2022; 13:930726. [PMID: 35903737 PMCID: PMC9314650 DOI: 10.3389/fpsyg.2022.930726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/21/2022] [Indexed: 11/13/2022] Open
Abstract
Delay in seeking medical services is common in elderly populations, which leads to disease progression and life difficulty. This study aims to assess the prevalence of delay in medical visits and treatment and define associated effects and factors in patients with senile cataract, which may help obtain a better understanding of late-life psychopathology and provide the basis for interventions. Patients aged more than 60 years were prospectively recruited in Zhongshan Ophthalmic Center (ZOC). All participants were diagnosed with binocular senile cataract and decided to have primary surgery in ZOC. The distributions of the popularity of delaying outpatient visits and treatment, the degrees of visual impairment, the influences on quality of life, and the reasons for delaying treatment among participants were accessed by the descriptive statistics. Factors associated with the perceptions of cataract treatment were accessed using a binary logistic regression model. A total of 400 senile patients aged from 60 to 94 years were enrolled. At diagnosis, 82 (20.5%) participants had a low vision with monocular acuity of both eyes below 0.05. All participants have felt that their normal lives were affected, and 64 (16%) participants felt that their lives were affected severely. Only 17 (4.25%) participants have sought for medical services immediately after feeling vision loss, and 294 (73.50%) participants have felt vision loss since a year ago before seeking medical help. A total of 298 (74.50%) participants have delayed the surgery time, and 229 (57.25%) patients delayed it for more than 12 months. There were 147 (36.75%) participants delaying surgery on account of no knowledge about it and 114 (28.50%) participants delaying surgery because of fear. There are a high proportion of elderly patients with senile cataract delaying their outpatient visits and surgery treatment, whose normal lives were severely affected. Increasing medical service propaganda about cataract and other common diseases in elderly populations would probably be helpful for improving perceptions of diseases and decreasing medical delays. Public needs to draw more attention to the healthy and medical status of the elderly ocular patients.
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Affiliation(s)
- Yifan Xiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Haofeng Jiang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Lanqin Zhao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Qiong Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Haotian Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
- Center for Precision Medicine, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Haotian Lin,
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27
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Alfatah M, Eisenhaber F. The PICLS high-throughput screening method for agents extending cellular longevity identifies 2,5-anhydro-D-mannitol as novel anti-aging compound. GeroScience 2022; 45:141-158. [PMID: 35705837 PMCID: PMC9886722 DOI: 10.1007/s11357-022-00598-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/25/2022] [Indexed: 02/03/2023] Open
Abstract
Although aging is the biggest risk factor for human chronic (cancer, diabetic, cardiovascular, and neurodegenerative) diseases, few interventions are known besides caloric restriction and a small number of drugs (with substantial side effects) that directly address aging. Thus, there is an urgent need for new options that can generally delay aging processes and prevent age-related diseases. Cellular aging is at the basis of aging processes. Chronological lifespan (CLS) of yeast Saccharomyces cerevisiae is the well-established model system for investigating the interventions of human post-mitotic cellular aging. CLS is defined as the number of days cells remain viable in a stationary phase. We developed a new, cheap, and fast quantitative method for measuring CLS in cell cultures incubated together with various chemical agents and controls on 96-well plates. Our PICLS protocol with (1) the use of propidium iodide for fluorescent-based cell survival reading in a microplate reader and (2) total cell count measurement via OD600nm absorption from the same plate provides real high-throughput capacity. Depending on logistics, large numbers of plates can be processed in parallel so that the screening of thousands of compounds becomes feasible in a short time. The method was validated by measuring the effect of rapamycin and calorie restriction on yeast CLS. We utilized this approach for chemical agent screening. We discovered the anti-aging/geroprotective potential of 2,5-anhydro-D-mannitol (2,5-AM) and suggest its usage individually or in combination with other anti-aging interventions.
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Affiliation(s)
- Mohammad Alfatah
- Bioinformatics Institute (BII), Singapore, 138671, A*STAR, Singapore.
| | - Frank Eisenhaber
- Bioinformatics Institute (BII), Singapore, 138671, A*STAR, Singapore. .,Genome Institute of Singapore (GIS), Singapore, 138672, A*STAR, Singapore. .,School of Biological Sciences (SBS), Nanyang Technological University (NTU), Singapore, 637551, Singapore.
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28
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Mercuri M, Russo P, Glassee M, Castro ID, De Greef E, Rykunov M, Bauduin M, Bourdoux A, Ocket I, Crupi F, Torfs T. Automatic radar-based 2-D localization exploiting vital signs signatures. Sci Rep 2022; 12:7651. [PMID: 35538128 PMCID: PMC9090773 DOI: 10.1038/s41598-022-11671-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/22/2022] [Indexed: 11/23/2022] Open
Abstract
In light of the continuously and rapidly growing senior and geriatric population, the research of new technologies enabling long-term remote patient monitoring plays an important role. For this purpose, we propose a single-input-multiple-output (SIMO) frequency-modulated continuous wave (FMCW) radar system and a signal processing technique to automatically detect the number and the 2-D position (azimuth and range information) of stationary people (seated/lying down). This is achieved by extracting the vital signs signatures of each single individual, separating the Doppler shifts caused by the cardiopulmonary activities from the unwanted reflected signals from static reflectors and multipaths. We then determine the number of human subjects present in the monitored environment by counting the number of extracted vital signs signatures while the 2-D localization is performed by measuring the distance from the radar where the vital signs information is sensed (i.e., locating the thoracic region). We reported maximum mean absolute errors (MAEs) of 0.1 m and 2.29\documentclass[12pt]{minimal}
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\begin{document}$$^{\circ }$$\end{document}∘ in measuring respectively the ranges and azimuth angles. The experimental validation demonstrated the ability of the proposed approach in monitoring paired human subjects in a typical office environment.
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Affiliation(s)
- Marco Mercuri
- DIMES, University of Calabria, 87036, Rende, CS, Italy.
| | - Pietro Russo
- IMEC-Netherlands, 5656 AE, Eindhoven, The Netherlands
| | | | | | | | | | | | | | | | - Felice Crupi
- DIMES, University of Calabria, 87036, Rende, CS, Italy
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Tzemah-Shahar R, Hochner H, Iktilat K, Agmon M. What can we learn from physical capacity about biological age? A systematic review. Ageing Res Rev 2022; 77:101609. [PMID: 35306185 DOI: 10.1016/j.arr.2022.101609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/02/2022] [Accepted: 03/14/2022] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To systematically investigate the relationship between objective measures of physical capacity (e.g., cardio-respiratory fitness or daily step count) and biological age, measured in different ways. DATA SOURCE PubMed; SCOPUS - Elsevier API; and Web of Science - ISI 1984-present, as well as contextual search engines used to identify additional relevant publications. STUDY SELECTION Cross-sectional and longitudinal studies that assessed the association between objectively measured physical capacity and biological aging in adult individuals (age>18). RESULTS Analysis of 28 studies demonstrated that physical capacity is positively associated with biological aging; the most dominant measures of physical capacity are muscular strength or gait speed. The majority of the studies estimated biological aging by a single methodology - either Leukocyte Telomere Length or DNA methylation levels. CONCLUSIONS This systematic review of the objective physical capacity measures used to estimate aging finds that the current literature is limited insofar as it overlooks the potential contribution of many feasible markers. We recommend measuring physical capacity in the context of aging using a wide range of modifiable behavioral markers, beyond simple muscle strength or simple gait speed. Forming a feasible and diversified method for estimating physical capacity through which it will also be possible to estimate biological aging in wide population studies is essential for the development of interventions that may alleviate the burden of age-related disease.
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Affiliation(s)
- Roy Tzemah-Shahar
- The Cheryl Spencer Institute for Nursing Research, Faculty of Health and Social Welfare, University of Haifa, Haifa, Israel
| | - Hagit Hochner
- Epidemiology unit, Hebrew University School of Public Health, Jerusalem, Israel
| | - Khalil Iktilat
- Department of Gerontology, Faculty of Health and Social Welfare, University of Haifa, Haifa, Israel
| | - Maayan Agmon
- The Cheryl Spencer Institute for Nursing Research, Faculty of Health and Social Welfare, University of Haifa, Haifa, Israel
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Peters S, Cosco TD, Mackey DC, Sarohia GS, Leong J, Wister A. Quantifying Physical Resilience in Ageing Using Measurement Instruments: A Scoping Review. Physiother Can 2022. [DOI: 10.3138/ptc-2020-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose: The capacity to recover motor function with pathology or age-related decline is termed physical resilience. It is unknown what outcome domains are captured with existing measurement instruments. Thus, this scoping review aimed to identify measurement instruments for physical resilience, identify research gaps, and make recommendations for future research. Methods: Articles were included from the search when their subject matter included the term resilience in relation to the physical health of older adults. Data on physical resilience measurement instruments were extracted using the outcome domains: body function or structure, activity and participation, and societal impact. Results: The majority of the 33 included articles involved older adults with fractures, cardiac conditions, and cancer. Many measurement instruments quantified body function or structure, and some instruments captured activity and participation, and societal impact of physical resilience. Measurement instruments were pooled into 4 categories: psychological, physiological, motor function, and psychosocial scales. No studies combined all areas of measurement. Conclusions: A potential gap of a measurement instrument capturing social aspects of physical resilience was identified. Comprehensive measurement could identify which outcome domains could be targeted to foster resilience. This knowledge might be useful across many health disciplines and contribute to therapeutic decision-making and rehabilitation strategies.
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Affiliation(s)
- Sue Peters
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Theodore D. Cosco
- Gerontology Research Centre, Simon Fraser University, Vancouver, British Columbia, Canada
- Oxford Institute of Population Ageing, University of Oxford, Oxford, United Kingdom
| | - Dawn C. Mackey
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
- Centre for Hip Health and Mobility, Vancouver, British Columbia, Canada
| | - Gurkaran S. Sarohia
- MD Undergraduate Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jeffrey Leong
- MD Undergraduate Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew Wister
- Oxford Institute of Population Ageing, University of Oxford, Oxford, United Kingdom
- Department of Gerontology, Simon Fraser University, Vancouver, British Columbia, Canada
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Jing JL, Ning TCY, Natali F, Eisenhaber F, Alfatah M. Iron Supplementation Delays Aging and Extends Cellular Lifespan through Potentiation of Mitochondrial Function. Cells 2022; 11:cells11050862. [PMID: 35269484 PMCID: PMC8909192 DOI: 10.3390/cells11050862] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/28/2022] [Accepted: 02/28/2022] [Indexed: 02/07/2023] Open
Abstract
Aging is the greatest challenge to humankind worldwide. Aging is associated with a progressive loss of physiological integrity due to a decline in cellular metabolism and functions. Such metabolic changes lead to age-related diseases, thereby compromising human health for the remaining life. Thus, there is an urgent need to identify geroprotectors that regulate metabolic functions to target the aging biological processes. Nutrients are the major regulator of metabolic activities to coordinate cell growth and development. Iron is an important nutrient involved in several biological functions, including metabolism. In this study using yeast as an aging model organism, we show that iron supplementation delays aging and increases the cellular lifespan. To determine how iron supplementation increases lifespan, we performed a gene expression analysis of mitochondria, the main cellular hub of iron utilization. Quantitative analysis of gene expression data reveals that iron supplementation upregulates the expression of the mitochondrial tricarboxylic acid (TCA) cycle and electron transport chain (ETC) genes. Furthermore, in agreement with the expression profiles of mitochondrial genes, ATP level is elevated by iron supplementation, which is required for increasing the cellular lifespan. To confirm, we tested the role of iron supplementation in the AMPK knockout mutant. AMPK is a highly conserved controller of mitochondrial metabolism and energy homeostasis. Remarkably, iron supplementation rescued the short lifespan of the AMPK knockout mutant and confirmed its anti-aging role through the enhancement of mitochondrial functions. Thus, our results suggest a potential therapeutic use of iron supplementation to delay aging and prolong healthspan.
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Affiliation(s)
- Jovian Lin Jing
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore; (J.L.J.); (T.C.Y.N.)
| | - Trishia Cheng Yi Ning
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore; (J.L.J.); (T.C.Y.N.)
| | - Federica Natali
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), A*STAR, Singapore 138669, Singapore;
- School of Biological Sciences (SBS), Nanyang Technological University (NTU), Singapore 637551, Singapore
| | - Frank Eisenhaber
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore; (J.L.J.); (T.C.Y.N.)
- School of Biological Sciences (SBS), Nanyang Technological University (NTU), Singapore 637551, Singapore
- Genome Institute of Singapore (GIS), A*STAR, Singapore 138672, Singapore
- Correspondence: (F.E.); (M.A.)
| | - Mohammad Alfatah
- Bioinformatics Institute (BII), A*STAR, Singapore 138671, Singapore; (J.L.J.); (T.C.Y.N.)
- Correspondence: (F.E.); (M.A.)
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Wu M, Lu Z, Zhu Q, Ma L, Xue L, Li Y, Zhou S, Yan W, Ye W, Zhang J, Luo A, Wang S. DDX4 + stem cells in the ovaries of postmenopausal women: existence and differentiation potential. Stem Cells 2022; 40:88-101. [PMID: 35511860 DOI: 10.1093/stmcls/sxab002] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 09/02/2021] [Indexed: 11/12/2022]
Abstract
Abstract
Ovarian aging is a pacemaker with multiple organ dysfunction. Recently, stem cells with the ability to generate new oocytes have been identified, which provides the possibility of stem cell therapy for ovarian aging. Several studies have revealed the existence of stem cells in human postmenopausal ovary. In this study, we describe a new method using magnetic activated cell sorting combined with differential adhesion to isolate DDX4 + stem cells from ovaries of postmenopausal women and show that the cells exhibit similar gene expression profiles and growth characteristics with primitive germ cells. Furthermore, the DDX4 + stem cells could enter meiosis stage and differentiation into oocytes. The RNA-seq data of the differentiated oocytes shows that mitochondrial metabolism may play an important role in the oogenesis process of the DDX4 + stem cells. Through using human ovarian cortical fragments transplantation model, we indicated that the GFP-DDX4 + stem cells differentiated into some GFP positive oocyte-like structure in vivo. Our study provided a new method for the isolation of DDX4 + stem cells from the ovaries of postmenopausal women and confirmed the ability of these stem cells to differentiate into oocytes.
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Affiliation(s)
- Meng Wu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhiyong Lu
- Hubei Key Laboratory of Embryonic Stem Cell Research, TaiHe Hospital, Hubei University of Medicine, Shiyan, China
| | - Qingqing Zhu
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lingwei Ma
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Liru Xue
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yan Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Su Zhou
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wei Yan
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenlei Ye
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jinjin Zhang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Aiyue Luo
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Shixuan Wang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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De-la-O A, Jurado-Fasoli L, Lavie CJ, Castillo MJ, Gutiérrez Á, Amaro-Gahete FJ. 1,25-dihydroxyvitamin D and cardiometabolic risk in healthy sedentary adults: The FIT-AGEING study. Int J Cardiol 2021; 344:192-198. [PMID: 34656647 DOI: 10.1016/j.ijcard.2021.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/28/2021] [Accepted: 10/11/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND A growing body of scientific works investigating the physio-pathological mechanisms behind cardiovascular disease has suggested that vitamin D deficiency could play a key role on its development. However, it remains unclear whether its active form (1,25-dihydroxyvitamin D [1,25(OH)2D] is associated with cardiometabolic risk factors in healthy individuals. The aim of the present study was to investigate the relationships of 1,25(OH)2D plasma levels with cardiometabolic risk factors in a sample of healthy sedentary adults. METHODS A total of 73 adults (~53% women; 54 ± 5 years old) were included in the current cross-sectional study. A sex-specific cardiometabolic risk score (MetScore) was calculated for each subject based on clinical parameters (i.e., waist circumference, systolic and diastolic blood pressure, plasma glucose, high-density lipoprotein cholesterol, and triglycerides) according to the International Diabetes Federation's clinical criteria. Plasma levels of 1,25(OH)2D were measured using a DiaSorin Liaison® immunochemiluminometric analyzer. RESULTS No significant association was detected between 1,25(OH)2D and MetScore (β = 0.037, R2 = 0.001, p = 0.77), independently of age, sex and fat body mass index. A significant inverse association were observed between 1,25(OH)2D and waist circumference (β = -0,303, R2 = 0.092, p = 0.01). These results were consistent after controlling by potential confounders. CONCLUSION In summary, the present results suggest that 1,25(OH)2D plasma levels are not associated with either cardiometabolic risk factors or insulin resistance in healthy sedentary adults. However, an inverse association of 1,25(OH)2D plasma levels with central adiposity was observed in our study sample.
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Affiliation(s)
- Alejandro De-la-O
- EFFECTS-262 Research Group, Department of Physiology, Faculty of Medicine, University of Granada, Spain
| | - Lucas Jurado-Fasoli
- EFFECTS-262 Research Group, Department of Physiology, Faculty of Medicine, University of Granada, Spain
| | - Carl J Lavie
- Department of Cardiovascular Diseases, John Ochsner Heart and Vascular Institute, Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA, United States of America
| | - Manuel J Castillo
- EFFECTS-262 Research Group, Department of Physiology, Faculty of Medicine, University of Granada, Spain
| | - Ángel Gutiérrez
- EFFECTS-262 Research Group, Department of Physiology, Faculty of Medicine, University of Granada, Spain
| | - Francisco J Amaro-Gahete
- EFFECTS-262 Research Group, Department of Physiology, Faculty of Medicine, University of Granada, Spain.
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Chia JL, Hartanto A. Older Adult Employment Status and Well-Being: A Longitudinal Bidirectional Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:12533. [PMID: 34886258 PMCID: PMC8657133 DOI: 10.3390/ijerph182312533] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 11/16/2022]
Abstract
Mixed findings in the literature on the effects of older adult employment on well-being and the reciprocal influence of well-being on employment suggest the need for more careful methodology in teasing out this relationship. Moreover, as previous research has shown that different domains of well-being relate to constructs differently, more nuanced definitions of well-being may be appropriate. The present study examined the longitudinal bidirectional associations of employment and different domains of well-being, controlling for stable within-person variables. The present study sampled older adults from the Midlife Development in the US study at three timepoints on employment status and well-being, specifically psychological, social, and subjective well-being. A Random-Intercept Cross-lagged Panel Model (RI-CLPM) approach was employed to determine the longitudinal bidirectional influence of employment and domains of well-being. Results showed that employment status was not associated with various well-being domains at a later time point. Results also showed that greater well-being, specifically in meaningfulness of society and personal growth, was associated with being employed at a later time point.
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Affiliation(s)
- Jonathan L. Chia
- School of Social Sciences, Singapore Management University, Singapore 178903, Singapore;
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35
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Howlett SE, Rutenberg AD, Rockwood K. The degree of frailty as a translational measure of health in aging. NATURE AGING 2021; 1:651-665. [PMID: 37117769 DOI: 10.1038/s43587-021-00099-3] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 07/06/2021] [Indexed: 04/30/2023]
Abstract
Frailty is a multiply determined, age-related state of increased risk for adverse health outcomes. We review how the degree of frailty conditions the development of late-life diseases and modifies their expression. The risks for frailty range from subcellular damage to social determinants. These risks are often synergistic-circumstances that favor damage also make repair less likely. We explore how age-related damage and decline in repair result in cellular and molecular deficits that scale up to tissue, organ and system levels, where they are jointly expressed as frailty. The degree of frailty can help to explain the distinction between carrying damage and expressing its usual clinical manifestations. Studying people-and animals-who live with frailty, including them in clinical trials and measuring the impact of the degree of frailty are ways to better understand the diseases of old age and to establish best practices for the care of older adults.
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Affiliation(s)
- Susan E Howlett
- Geriatric Medicine Research Unit, Department of Medicine, Dalhousie University & Nova Scotia Health, Halifax, Nova Scotia, Canada
- Department of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Andrew D Rutenberg
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Kenneth Rockwood
- Geriatric Medicine Research Unit, Department of Medicine, Dalhousie University & Nova Scotia Health, Halifax, Nova Scotia, Canada.
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36
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Capurso C. Whole-Grain Intake in the Mediterranean Diet and a Low Protein to Carbohydrates Ratio Can Help to Reduce Mortality from Cardiovascular Disease, Slow Down the Progression of Aging, and to Improve Lifespan: A Review. Nutrients 2021; 13:2540. [PMID: 34444699 PMCID: PMC8401068 DOI: 10.3390/nu13082540] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/08/2021] [Accepted: 07/23/2021] [Indexed: 12/24/2022] Open
Abstract
Increase in the aging population is a phenomenon all over the world. Maintaining good functional ability, good mental health, and cognitive function in the absence of severe disease and physical disability define successful aging. A healthy lifestyle in middle age predisposes successful aging. Longevity is the result of a multifactorial phenomenon, which involves feeding. Diets that emphasize fruit and vegetables, whole grains rather than refined grains, low-fat dairy, lean meats, fish, legumes, and nuts are inversely associated with mortality or to a lower risk of becoming frail among elderly subjects. A regular physical activity and a regular intake of whole grain derivatives together with the optimization of the protein/carbohydrate ratio in the diet, where the ratio is significantly less than 1 such as in the Mediterranean diet and the Okinawan diet, reduces the risk of developing aging-related diseases and increases healthy life expectancy. The purpose of our review was to analyze cohort and case-control studies that investigated the effects of cereals in the diet, especially whole grains and derivatives as well as the effects of a diet with a low protein-carbohydrate ratio on the progression of aging, mortality, and lifespan.
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Affiliation(s)
- Cristiano Capurso
- Department of Medical and Surgical Sciences, University of Foggia, Viale Pinto 1, 71122 Foggia, Italy
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37
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Diebel LWM, Rockwood K. Determination of Biological Age: Geriatric Assessment vs Biological Biomarkers. Curr Oncol Rep 2021; 23:104. [PMID: 34269912 PMCID: PMC8284182 DOI: 10.1007/s11912-021-01097-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2021] [Indexed: 12/19/2022]
Abstract
Purpose of Review Biological age is the concept of using biophysiological measures to more accurately determine an individual’s age-related risk of adverse outcomes. Grading of the degree of frailty and measuring biomarkers are distinct methods of measuring biological age. This review compares these strategies for estimating biological age for clinical purposes. Recent Findings The degree of frailty predicts susceptibility to adverse outcomes independently of chronological age. The utility of this approach has been demonstrated across a range of clinical contexts. Biomarkers from various levels of the biological aging process are improving in accuracy, with the potential to identify aberrant aging trajectories before the onset of clinically manifest frailty. Summary Grading of frailty is a demonstrably, clinically, and research-relevant proxy estimate of biological age. Emerging biomarkers can supplement this approach by identifying accelerated aging before it is clinically apparent. Some biomarkers may even offer a means by which interventions to reduce the rate of aging can be developed.
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Affiliation(s)
- Lucas W M Diebel
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Nova Scotia Health Authority, Halifax, Canada.,Centre for Health Care of the Elderly, Veterans' Memorial Building, 4121-5955 Veterans' Memorial Lane, Halifax, Nova Scotia, B3H 2E9, Canada
| | - Kenneth Rockwood
- Division of Geriatric Medicine, Department of Medicine, Dalhousie University, Nova Scotia Health Authority, Halifax, Canada. .,Centre for Health Care of the Elderly, Veterans' Memorial Building, 4121-5955 Veterans' Memorial Lane, Halifax, Nova Scotia, B3H 2E9, Canada. .,Department of Medicine, Divisions of Geriatric Medicine & Neurology, Dalhousie University, Nova Scotia Health Authority, Halifax, Canada.
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Abstract
Modern medicine makes it possible for many people to live with multiple chronic diseases for decades, but this has enormous social, financial, and environmental consequences. Preclinical, epidemiological, and clinical trial data have shown that many of the most common chronic diseases are largely preventable with nutritional and lifestyle interventions that are targeting well-characterized signaling pathways and the symbiotic relationship with our microbiome. Most of the research priorities and spending for health are focused on finding new molecular targets for the development of biotech and pharmaceutical products. Very little is invested in mechanism-based preventive science, medicine, and education. We believe that overly enthusiastic expectations regarding the benefits of pharmacological research for disease treatment have the potential to impact and distort not only medical research and practice but also environmental health and sustainable economic growth. Transitioning from a primarily disease-centered medical system to a balanced preventive and personalized treatment healthcare system is key to reduce social disparities in health and achieve financially sustainable, universal health coverage for all. In this Perspective article, we discuss a range of science-based strategies, policies, and structural reforms to design an entire new disease prevention-centered science, educational, and healthcare system that maximizes both human and environmental health.
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Olshansky SJ. Aging Like Struldbruggs, Dorian Gray or Peter Pan. NATURE AGING 2021; 1:576-578. [PMID: 37117806 DOI: 10.1038/s43587-021-00087-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
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40
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Hong YX, Wu WY, Song F, Wu C, Li GR, Wang Y. Cardiac senescence is alleviated by the natural flavone acacetin via enhancing mitophagy. Aging (Albany NY) 2021; 13:16381-16403. [PMID: 34175838 PMCID: PMC8266317 DOI: 10.18632/aging.203163] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 06/01/2021] [Indexed: 01/10/2023]
Abstract
Cardiac senescence is associated with cardiomyopathy which is a degenerative disease in the aging process of the elderly. The present study investigates using multiple experimental approaches whether the natural flavone acacetin could attenuate myocardial senescence in C57/BL6 mice and H9C2 rat cardiac cells induced by D-galactose. We found that the impaired heart function in D-galactose-induced accelerated aging mice was improved by oral acacetin treatment in a dose-dependent manner. Acacetin significantly countered the increased serum advanced glycation end products, the myocardial telomere length shortening, the increased cellular senescence marker proteins p21 and p53, and the reduced mitophagy signaling proteins PINK1/Parkin and Sirt6 expression in aging mice. In H9C2 rat cardiac cells, acacetin alleviated cell senescence induced by D-galactose in a concentration-dependent manner. Acacetin decreased p21 and p53 expression, up-regulated PINK1/Parkin, LC3II/LC3I ratio, pLKB1, pAMPK and Sirt6, and reversed the depolarized mitochondrial membrane potential in aging cardiac cells. Mitophagy inhibition with 3-methyladenine or silencing Sirt6 abolished the protective effects of acacetin against cardiac senescence. Further analysis revealed that acacetin effect on Sirt6 was mediated by Sirt1 activation and increase of NAD+/NADH ratio. These results demonstrate that acacetin significantly inhibits in vivo and in vitro cardiac senescence induced by D-galactose via Sirt1-mediated activation of Sirt6/AMPK signaling pathway, thereby enhancing mitophagy and preserving mitochondrial function, which suggests that acacetin may be a drug candidate for treating cardiovascular disorders related to aging.
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Affiliation(s)
- Yi-Xiang Hong
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wei-Yin Wu
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Fei Song
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Chan Wu
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Gui-Rong Li
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
- Nanjing Amazigh Pharma Ltd., Nanjing, Jiangsu, China
| | - Yan Wang
- Xiamen Cardiovascular Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, China
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Rockwood K. Open peer review commentary on building clinically relevant outcomes across the Alzheimer's disease spectrum. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2021; 7:e12192. [PMID: 34195351 PMCID: PMC8234695 DOI: 10.1002/trc2.12192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 05/06/2021] [Indexed: 12/02/2022]
Affiliation(s)
- Kenneth Rockwood
- Dalhousie UniversityHalifaxNova ScotiaCanada
- Elder Care NetworkNova Scotia HealthHalifaxNova ScotiaCanada
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42
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A biomimetic natural sciences approach to understanding the mechanisms of ageing in burden of lifestyle diseases. Clin Sci (Lond) 2021; 135:1251-1272. [PMID: 34037207 DOI: 10.1042/cs20201452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 12/12/2022]
Abstract
The worldwide landscape of an ageing population and age-related disease brings with it huge socio-economic and public healthcare concerns across nations. Correspondingly, monumental human and financial resources have been invested in biomedical research, with a mission to decode the mechanisms of ageing and how these contribute to age-related disease. Multiple hallmarks of ageing have been identified that are common across taxa, highlighting their fundamental importance. These include dysregulated mitochondrial metabolism and telomeres biology, epigenetic modifications, cell-matrix interactions, proteostasis, dysregulated nutrient sensing, stem cell exhaustion, inflammageing and immuno-senescence. While our understanding of the molecular basis of ageing is improving, it remains a complex and multifactorial process that remains to be fully understood. A key aspect of the shortfall in our understanding of the ageing process lies in translating data from standard animal models to humans. Consequently, we suggest that a 'biomimetic' and comparative approach, integrating knowledge from species in the wild, as opposed to inbred genetically homogenous laboratory animals, can provide powerful insights into human ageing processes. Here we discuss some particularities and comparative patterns among several species from the animal kingdom, endowed with longevity or short lifespans and unique metabolic profiles that could be potentially exploited to the understanding of ageing and age-related diseases. Based upon lessons from nature, we also highlight several avenues for renewed focus in the pathophysiology of ageing and age-related disease (i.e. diet-microbiome-health axis, oxidative protein damage, adaptive homoeostasis and planetary health). We propose that a biomimetic alliance with collaborative research from different disciplines can improve our understanding of ageing and age-related diseases with long-term sustainable utility.
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Blasimme A. The plasticity of ageing and the rediscovery of ground-state prevention. HISTORY AND PHILOSOPHY OF THE LIFE SCIENCES 2021; 43:67. [PMID: 33948779 PMCID: PMC8096726 DOI: 10.1007/s40656-021-00414-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 04/07/2021] [Indexed: 05/05/2023]
Abstract
In this paper, I present an emerging explanatory framework about ageing and care. In particular, I focus on how, in contrast to most classical accounts of ageing, biomedicine today construes the ageing process as a modifiable trajectory. This framing turns ageing from a stage of inexorable decline into the focus of preventive strategies, harnessing the functional plasticity of the ageing organism. I illustrate this shift by focusing on studies of the demographic dynamics in human population, observations of ageing as an intraspecifically heterogenous phenotype, and the experimental manipulation of longevity, in both model organisms and humans. I suggest that such an explanatory framework about ageing creates the epistemological conditions for the rise of a peculiar form of prevention that does not aim to address a specific condition. Rather it seeks to stall the age-related accumulation of molecular damage and functional deficits, boosting individual resilience against age-related decline. I call this preventive paradigm "ground-state prevention." While new, ground-state prevention bears conceptual resemblance to forms of medical wisdom prominent in classic Galenic medicine, as well as in the Renaissance period.
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Affiliation(s)
- Alessandro Blasimme
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zurich), Zurich, Switzerland.
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44
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Jiang S, Deng N, Zheng B, Li T, Liu RH. Rhodiola extract promotes longevity and stress resistance of Caenorhabditis elegans via DAF-16 and SKN-1. Food Funct 2021; 12:4471-4483. [PMID: 33881421 DOI: 10.1039/d0fo02974b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The effects of Rhodiola extract (RE) on longevity and stress resistance in Caenorhabditis elegans (C. elegans), and the underlying molecular mechanisms were explored in the present study. Results showed that the lifespan of C. elegans was remarkably prolonged by 37.1% after treated with high-dose RE (480 μg mL-1). Intervention with RE alleviated aging-related declines in the C. elegans model, and enhanced the stress resistance against heat shock, ultraviolet radiation and paraquat. Moreover, RE reduced the levels of reactive oxygen species (ROS) and malondialdehyde (MDA) and increased the activities of superoxide dismutase (SOD) and catalase (CAT). RE also upregulated the gene expression of sod-3, gst-4, daf-16, skn-1 in C. elegans, downregulated the gene expression of daf-2 and age-1, and accelerated the translocation of DAF-16 and SKN-1 into the nucleus. Furthermore, the daf-16(mu86) and skn-1(zu169) mutants reversed the extension of lifespan triggered by RE, indicating that these genes were involved in RE-regulated longevity. These results demonstrated that RE could enhance lifespan extension, healthspan and stress resistance of C. elegans via insulin/IGF signaling and SKN-1 pathways. Therefore, the present findings suggested Rhodiola as a potential candidate to ameliorate the symptoms of aging.
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Affiliation(s)
- Siqi Jiang
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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Nucleoside reverse transcriptase inhibitors and Kamuvudines inhibit amyloid-β induced retinal pigmented epithelium degeneration. Signal Transduct Target Ther 2021; 6:149. [PMID: 33850097 PMCID: PMC8044134 DOI: 10.1038/s41392-021-00537-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 12/15/2022] Open
Abstract
Nonfibrillar amyloid-β oligomers (AβOs) are a major component of drusen, the sub-retinal pigmented epithelium (RPE) extracellular deposits characteristic of age-related macular degeneration (AMD), a common cause of global blindness. We report that AβOs induce RPE degeneration, a clinical hallmark of geographic atrophy (GA), a vision-threatening late stage of AMD that is currently untreatable. We demonstrate that AβOs induce activation of the NLRP3 inflammasome in the mouse RPE in vivo and that RPE expression of the purinergic ATP receptor P2RX7, an upstream mediator of NLRP3 inflammasome activation, is required for AβO-induced RPE degeneration. Two classes of small molecule inflammasome inhibitors—nucleoside reverse transcriptase inhibitors (NRTIs) and their antiretrovirally inert modified analog Kamuvudines—both inhibit AβOs-induced RPE degeneration. These findings crystallize the importance of P2RX7 and NLRP3 in a disease-relevant model of AMD and identify inflammasome inhibitors as potential treatments for GA.
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Late-life intermittent fasting decreases aging-related frailty and increases renal hydrogen sulfide production in a sexually dimorphic manner. GeroScience 2021; 43:1527-1554. [PMID: 33675469 PMCID: PMC8492807 DOI: 10.1007/s11357-021-00330-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/25/2021] [Indexed: 12/19/2022] Open
Abstract
Global average life expectancy continues to rise. As aging increases the likelihood of frailty, which encompasses metabolic, musculoskeletal, and cognitive deficits, there is a need for effective anti-aging treatments. It is well established in model organisms that dietary restriction (DR), such as caloric restriction or protein restriction, enhances health and lifespan. However, DR is not widely implemented in the clinic due to patient compliance and its lack of mechanistic underpinnings. Thus, the present study tested the effects of a somewhat more clinically applicable and adoptable DR regimen, every-other-day (EOD) intermittent fasting, on frailty in 20-month-old male and female C57BL/6 mice. Frailty was determined by a series of metabolic, musculoskeletal, and cognitive tasks performed prior to and toward the end of the 2.5-month dietary intervention. Late-life EOD fasting attenuated overall energy intake, hypothalamic inflammatory gene expression, and frailty in males. However, it failed to reduce overall caloric intake and had a little positive effect in females. Given that the selected benefits of DR are dependent on augmented production of the gasotransmitter hydrogen sulfide (H2S) and that renal H2S production declines with age, we tested the effects of EOD fasting on renal H2S production capacity and its connection to frailty in males. EOD fasting boosted renal H2S production, which positively correlated with improvements in multiple components of frailty tasks. Therefore, late-life initiated EOD fasting is sufficient to reduce aging-related frailty, at least in males, and suggests that renal H2S production capacity may modulate the effects of late-life EOD fasting on frailty.
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Pérez-Zepeda MU, Godin J, Armstrong JJ, Andrew MK, Mitnitski A, Kirkland S, Rockwood K, Theou O. Frailty among middle-aged and older Canadians: population norms for the frailty index using the Canadian Longitudinal Study on Aging. Age Ageing 2021; 50:447-456. [PMID: 32805022 DOI: 10.1093/ageing/afaa144] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND frailty is a public health priority now that the global population is ageing at a rapid rate. A scientifically sound tool to measure frailty and generate population-based reference values is a starting point. OBJECTIVE in this report, our objectives were to operationalize frailty as deficit accumulation using a standard frailty index (FI), describe levels of frailty in Canadians ≥45 years old and provide national normative data. DESIGN this is a secondary analysis of the Canadian Longitudinal Study on Aging (CLSA) baseline data. SETTING/PARTICIPANTS about 51,338 individuals (weighted to represent 13,232,651 Canadians), aged 45-85 years, from the tracking and comprehensive cohorts of CLSA. METHODS after screening all available variables in the pooled dataset, 52 items were selected to construct an FI. Descriptive statistics for the FI and normative data derived from quantile regressions were developed. RESULTS the average age of the participants was 60.3 years (95% confidence interval [CI]: 60.2-60.5), and 51.5% were female (95% CI: 50.8-52.2). The mean FI score was 0.07 (95% CI: 0.07-0.08) with a standard deviation of 0.06. Frailty was higher among females and with increasing age, and scores >0.2 were present in 4.2% of the sample. National normative data were identified for each year of age for males and females. CONCLUSIONS the standardized frailty tool and the population-based normative frailty values can help inform discussions about frailty, setting a new bar in the field. Such information can be used by clinicians, researchers, stakeholders and the general public to understand frailty, especially its relationship with age and sex.
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Affiliation(s)
- Mario Ulises Pérez-Zepeda
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- Instituto Nacional de Geriatría, Mexico City, Mexico
- Centro de Investigación en Ciencias de la Salud (CICSA), FCS, Universidad Anáhuac México Campus Norte, Huixquilucan Edo. de México
| | - Judith Godin
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Joshua J Armstrong
- Department of Health Sciences, Lakehead University Thunder Bay Campus, Ontario, Canada
| | - Melissa K Andrew
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Arnold Mitnitski
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Susan Kirkland
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Kenneth Rockwood
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Olga Theou
- Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
- School of Physiotherapy, Dalhousie University, Halifax, Nova Scotia, Canada
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Lu Y, Tan CTY, Gwee X, Yap KB, Fulop T, Pan F, Larbi A, Ng TP. Pathogen Burden, Blood Biomarkers and Functional Ageing in Community-Dwelling Older Adults. J Gerontol A Biol Sci Med Sci 2021; 76:1864-1873. [PMID: 33640984 DOI: 10.1093/gerona/glab057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Lifelong accumulation of latent or persistent or repeated infections may be a contributing factor to the deterioration of physical and cognitive function associated with functional ageing, but the evidence is limited and the biological underpinnings are unclear. METHODS We profiled the seropositivity for common viral, bacterial and plasmodial pathogens of local importance in community-living older adults in two studies involving 745 older adults (mean age 67.0, SD: 7.7 years), and 142 older adults (mean age 72.7, SD: 8.3 years). Pathogen load was related to different sets of age-related physical and cognitive measures of functional ageing and the frailty index, and plasma levels of biomarkers of inflammation, innate and adaptive immunity, and other physiological functions. RESULTS High pathogen load was associated with impaired gait speed (GS), (p<0.015), functional mobility (POMA) (p<0.029), cognitive function (MMSE) (p<<0.05), and increased frailty index (FI) (p<<0.05). High pathogen load was significantly associated with C3a complement activity (p<0.001), matrix metalloproteinase-7, macrophage inflammatory protein-1α (p<0.05), and monocyte chemoattractant protein 2 (p=0.028). Blood biomarkers did not fully explain the observed association between pathogen load and functional ageing measures. CONCLUSIONS The present study provides novel evidence linking lifelong cumulated numbers of latent, persistent or repeated infection to functional ageing, plausibly via inflammatory and immune and other biological factors.
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Affiliation(s)
- Yanxia Lu
- Department of Medical Psychology and Ethics, School of Basic Medical Sciences, Shandong University, China
| | - Crystal Tze Ying Tan
- Biology of Ageing Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Xinyi Gwee
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Keng Bee Yap
- Geriatric Medicine and Palliative Medicine Department, Ng Teng Fong General Hospital
| | - Tamas Fulop
- Geriatrics Division, Department of Medicine, Research Center on Aging, University of Sherbrooke, Sherbrooke, Quebec, Canada
| | - Fang Pan
- Department of Medical Psychology and Ethics, School of Basic Medical Sciences, Shandong University, China
| | - Anis Larbi
- Biology of Ageing Laboratory, Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore.,Geriatrics Division, Department of Medicine, Research Center on Aging, University of Sherbrooke, Sherbrooke, Quebec, Canada
| | - Tze Pin Ng
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Gaydosh L, Belsky DW, Glei DA, Goldman N. Testing Proposed Quantifications of Biological Aging in Taiwanese Older Adults. J Gerontol A Biol Sci Med Sci 2021; 75:1680-1685. [PMID: 31566204 DOI: 10.1093/gerona/glz223] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Indexed: 11/14/2022] Open
Abstract
Quantification of biological aging is of interest in gerontology as a means to surveil aging rates in the population and to evaluate the effects of interventions to increase healthy life span. Analysis of proposed methods to quantify biological aging has focused on samples of midlife or mixed-age adults in the West. Research is needed to test whether quantifications of biological aging can differentiate aging rates among older adults and if quantifications of biological aging developed in Western samples can differentiate aging rates in non-Western populations. We conducted analysis of Klemera-Doubal method (KDM) Biological Age and homeostatic dysregulation measures of biological aging developed in the U.S. NHANES and tested in a sample of older Taiwanese adults in the Social Environment and Biomarkers of Aging Study. We conducted analysis of physical and cognitive function and mortality, comparing quantifications of biological aging to a biomarker index based on norms within our analysis sample and to participants' ratings of their own health. Results showed that quantifications of biological aging (a) predicted differences in physical and cognitive function and in mortality risk among Taiwanese older adults and (b) performed as well as a traditional biomarker index and participant self-rated health for prediction of these outcomes.
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Affiliation(s)
- Lauren Gaydosh
- Center for Medicine, Health, and Society and Public Policy Studies, Vanderbilt University, Nashville, Tennessee
| | - Daniel W Belsky
- Department of Epidemiology & Butler Aging Center, Columbia University Mailman School of Public Health, New York, New York
| | - Dana A Glei
- Center for Population and Health, Georgetown University, Washington, District of Columbia
| | - Noreen Goldman
- Office of Population Research, Princeton University, New Jersey
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Caprara G. Mediterranean-Type Dietary Pattern and Physical Activity: The Winning Combination to Counteract the Rising Burden of Non-Communicable Diseases (NCDs). Nutrients 2021; 13:429. [PMID: 33525638 PMCID: PMC7910909 DOI: 10.3390/nu13020429] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023] Open
Abstract
Non-communicable diseases (NCDs) (mainly cardiovascular diseases, cancers, chronic respiratory diseases and type 2 diabetes) are the main causes of death worldwide. Their burden is expected to rise in the future, especially in less developed economies and among the poor spread across middle- and high-income countries. Indeed, the treatment and prevention of these pathologies constitute a crucial challenge for public health. The major non-communicable diseases share four modifiable behavioral risk factors: unhealthy diet, physical inactivity, tobacco usage and excess of alcohol consumption. Therefore, the adoption of healthy lifestyles, which include not excessive alcohol intake, no smoking, a healthy diet and regular physical activity, represents a crucial and economical strategy to counteract the global NCDs burden. This review summarizes the latest evidence demonstrating that Mediterranean-type dietary pattern and physical activity are, alone and in combination, key interventions to both prevent and control the rise of NCDs.
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Affiliation(s)
- Greta Caprara
- Department of Experimental Oncology, IEO, European Institute of Oncology, IRCCS, 20139 Milano, Italy
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