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Longevity research

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https://www.readbyqxmd.com/read/29344419/dendrobium-sources-of-active-ingredients-to-treat-age-related-pathologies
#1
REVIEW
Veronika Cakova, Frederic Bonte, Annelise Lobstein
Dendrobium represents one of the most important orchid genera, ornamentally and medicinally. Dendrobiums are sympodial epiphytic plants, which is a name they are worthy of, the name coming from Greek origin: "dendros", tree, and "bios", life. Dendrobium species have been used for a thousand years as first-rate herbs in traditional Chinese medicine (TCM). They are source of tonic, astringent, analgesic, antipyretic, and anti-inflammatory substances, and have been traditionally used as medicinal herbs in the treatment of a variety of disorders, such as, nourishing the stomach, enhancing production of body fluids or nourishing Yin...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29340215/genome-stability-maintenance-in-naked-mole-rat
#2
I O Petruseva, A N Evdokimov, O I Lavrik
The naked mole-rat (Heterocephalus glaber) is one of the most promising models used to study genome maintenance systems, including the effective repair of damage to DNA. The naked mole-rat is the longest lived rodent species, which is extraordinarily resistant to cancer and has a number of other unique phenotypic traits. For at least 80% of its lifespan, this animal shows no signs of aging or any increased likelihood of death and retains the ability to reproduce. The naked mole-rat draws the heightened attention of researchers who study the molecular basis of lengthy lifespan and cancer resistance...
October 2017: Acta Naturae
https://www.readbyqxmd.com/read/29339647/proceedings-of-the-11th-congress-of-the-international-society-of-nutrigenetics-and-nutrigenomics-isnn-2017
#3
William T Barrington, Anna C Salvador, Jaana A Hartiala, Raffaele De Caterina, Martin Kohlmeier, J Alfredo Martinez, Carin B Kreutzer, David Heber, Aldons J Lusis, Zhaoping Li, Hooman Allayee
The International Society of Nutrigenetics and Nutrigenomics (ISNN) held its 11th annual Congress in Los Angeles, California, between September 16 and 19, 2017. In addition to 2 keynote lectures, 4 plenary sessions included presentations by internationally renowned speakers on cutting-edge areas of research and new discoveries in genetics/genomics, the microbiome, and nutrition. Scientific topics included multi-omics approaches; diet and the microbiome; cancer, longevity, and metabolism; moving the field forward; and translational/educational aspects and the future of medicine...
January 17, 2018: Journal of Nutrigenetics and Nutrigenomics
https://www.readbyqxmd.com/read/29331471/symposium-review-novel-strategies-to-genetically-improve-mastitis-resistance-in-dairy-cattle
#4
P Martin, H W Barkema, L F Brito, S G Narayana, F Miglior
Mastitis is a disease of major economic importance to the dairy cattle sector because of the high incidence of clinical mastitis and prevalence of subclinical mastitis and, consequently, the costs associated with treatment, production losses, and reduced animal welfare. Disease-recording systems compiling data from a large number of farms are still not widely implemented around the world; thus, selection for mastitis resistance is often based on genetically correlated indicator traits such as somatic cell count (SCC), udder depth, and fore udder attachment...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29329306/lifespan-extension-without-fertility-reduction-following-dietary-addition-of-the-autophagy-activator-torin1-in-drosophila-melanogaster
#5
Janet S Mason, Tom Wileman, Tracey Chapman
Autophagy is a highly conserved mechanism for cellular repair that becomes progressively down-regulated during normal ageing. Hence, manipulations that activate autophagy could increase lifespan. Previous reports show that manipulations to the autophagy pathway can result in longevity extension in yeast, flies, worms and mammals. Under standard nutrition, autophagy is inhibited by the nutrient sensing kinase Target of Rapamycin (TOR). Therefore, manipulations of TOR that increase autophagy may offer a mechanism for extending lifespan...
2018: PloS One
https://www.readbyqxmd.com/read/29324453/developmental-origins-of-health-span-and-life-span-a-mini-review
#6
Joshua D Preston, Leryn J Reynolds, Kevin J Pearson
BACKGROUND: A vast body of research has demonstrated that disease susceptibility and offspring health can be influenced by perinatal factors, which include both paternal and maternal behavior and environment. Offspring disease risk has the potential to affect the health span and life span of offspring. KEY FINDINGS: Various maternal factors, such as environmental toxicant exposure, diet, stress, exercise, age at conception, and longevity have the potential to influence age-associated diseases such as cardiovascular disease, obesity, diabetes, and cancer risk in offspring...
January 12, 2018: Gerontology
https://www.readbyqxmd.com/read/29316856/food-functionality-research-as-a-new-national-project-in-special-reference-to-improvement-of-cognitive-and-locomotive-abilities
#7
Keiko Abe, Takumi Misaka
In Japan, where a super-aging society is realized, we are most concerned about healthy longevity, which would ascertain the wellness of people by improving their quality of life (QOL). In 2014, the Cabinet Office proposed a strategic innovation promotion programme, launching a national project for the development of the agricultural-forestry-fisheries food products with new functionalities for the next generation. In addition to focusing on a conventional prevention of lifestyle-associated metabolic syndromes, the project targets the scientific evidence of the activation of brain cognitive ability and the improvement of bodily locomotive function...
January 10, 2018: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/29316622/interaction-analysis-of-longevity-interventions-using-survival-curves
#8
Stefan Nowak, Johannes Neidhart, Ivan G Szendro, Jonas Rzezonka, Rahul Marathe, Joachim Krug
A long-standing problem in ageing research is to understand how different factors contributing to longevity should be expected to act in combination under the assumption that they are independent. Standard interaction analysis compares the extension of mean lifespan achieved by a combination of interventions to the prediction under an additive or multiplicative null model, but neither model is fundamentally justified. Moreover, the target of longevity interventions is not mean life span but the entire survival curve...
January 6, 2018: Biology
https://www.readbyqxmd.com/read/29288287/a-contemporary-paradigm-integrating-spirituality-in-advance-care-planning
#9
Katie Lutz, Stefan R Rowniak, Prabjot Sandhu
In the 25 years since advance care planning first drew the attention of the national healthcare and legal systems, gains in the rate of advance care directive completion have been negligible despite the effort of researchers, ethicists, and lawmakers. With the benefit of sophisticated healthcare technology, patients are living longer. Despite the benefits of increased longevity, it is widely acknowledged that enough has not been done to adequately address end-of-life care decisions at the crossroads between medical futility and quality of life...
December 29, 2017: Journal of Religion and Health
https://www.readbyqxmd.com/read/29286510/comparative-analysis-the-frequency-and-spectrum-of-chromosome-aberrations-in-irradiated-in-vitro-peripheral-blood-lymphocytes-of-the-elderly-and-centenarians-from-kyiv
#10
O O Talan, O V Shemetun, O M Demchenko, M S Papuga, M A Pilinska
OBJECTIVE: To establish and compare the frequency and spectrum of chromosome aberrations under X radiation exposure in vitro in dose 0.25 Gy peripheral blood lymphocytes of the elderly and centenarians. MATERIAL AND METHODS: Material of cytogenetic research were peripheral blood lymphocytes from 11 elderly and 10 centenarians, which were irradiated in vitro in dose 0.25 Gy and cultured by generally accepted semi micromethod; slides of metaphase chromosomes were GTG stained and analyzed under the microscope with magnification x 1000...
December 2017: Problemy Radiat︠s︡iĭnoï Medyt︠s︡yny Ta Radiobiolohiï
https://www.readbyqxmd.com/read/29284289/signaling-and-regulation-through-the-nad-and-nadp-networks
#11
Ilmo E Hassinen
SIGNIFICANCE: NAD+ and NADP+ are important co-substrates in redox reactions and participate in regulatory networks operating in adjustment of metabolic pathways. Moreover, NAD+ is a co-substrate in post-translational modification of proteins and is involved in DNA repair. NADPH is indispensable for reductive syntheses and the redox chemistry involved in attaining and maintaining correct protein conformation. Recent Advances: Within a pair of decades, a wealth of information has been gathered on NAD(H)+/NADP(H) redox imaging, regulatory role of redox potential in assembly of spatial protein structures and the role of ADP-ribosylation of regulatory proteins affecting both gene expression and metabolism...
December 28, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/29276113/ayurveda-and-the-science-of-aging
#12
REVIEW
Rammohan V Rao
Since time immemorial, humanity has been concerned with developing and preserving youthful vigor, and extending longevity by stopping or delaying the aging process. By 2030, one in five of the world population will be over 65 years old. Longevity and old age are accompanied with a variety of health challenges and population studies indicate that the elderly will use between three to five times more healthcare services compared to the younger population. Modern medicine has made a great deal of progress in understanding the aging process and in controlling age-associated health issues including heart attacks, strokes, diabetes, cancer, senility, and arthritis...
December 21, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/29274177/links-between-parental-life-histories-of-wild-salmon-and-the-telomere-lengths-of-their-offspring
#13
D McLennan, J D Armstrong, D C Stewart, S Mckelvey, W Boner, P Monaghan, N B Metcalfe
The importance of parental contributions to offspring development and subsequent performance is self-evident at a genomic level; however, parents can also affect offspring fitness by indirect genetic and environmental routes. The life history strategy that an individual adopts will be influenced by both genes and environment; and this may have important consequences for offspring. Recent research has linked telomere dynamics (i.e. telomere length and loss) in early life to future viability and longevity. Moreover, a number of studies have reported a heritable component to telomere length across a range of vertebrates, though the effects of other parental contribution pathways have been far less studied...
December 23, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29261033/changes-in-user-perceptions-of-a-telemedicine-system-over-time-from-initial-implementation-to-everyday-use
#14
Christopher Lemon, Na Liu, Stuart Lane, Archana Sud, James Branley, Mohamed Khadra, Jinman Kim
BACKGROUND: Benefits associated with telemedicine are contingent upon positive user perceptions. Despite this, research on user perceptions of telemedicine remains limited. INTRODUCTION: Usability approaches offer a robust way to assess user perceptions, but have rarely been applied in telemedicine. In this study, a usability approach was employed to examine how user perceptions toward a telemedicine system changed over the course of everyday use. MATERIALS AND METHODS: A telemedicine system was introduced to a hospital in the home service...
December 20, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29249689/nad-intermediates-the-biology-and-therapeutic-potential-of-nmn-and-nr
#15
REVIEW
Jun Yoshino, Joseph A Baur, Shin-Ichiro Imai
Research on the biology of NAD+ has been gaining momentum, providing many critical insights into the pathogenesis of age-associated functional decline and diseases. In particular, two key NAD+ intermediates, nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN), have been extensively studied over the past several years. Supplementing these NAD+ intermediates has shown preventive and therapeutic effects, ameliorating age-associated pathophysiologies and disease conditions. Although the pharmacokinetics and metabolic fates of NMN and NR are still under intensive investigation, these NAD+ intermediates can exhibit distinct behavior, and their fates appear to depend on the tissue distribution and expression levels of NAD+ biosynthetic enzymes, nucleotidases, and presumptive transporters for each...
December 14, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/29248989/stratified-prevention-opportunities-and-limitations-report-on-the-1st-interdisciplinary-cardiovascular-workshop-in-augsburg
#16
Gregor Kirchhof, Josef Franz Lindner, Stephan Achenbach, Klaus Berger, Stefan Blankenberg, Heiner Fangerau, Henner Gimpel, Ulrich M Gassner, Jens Kersten, Dorothea Magnus, Herbert Rebscher, Heribert Schunkert, Stephan Rixen, Paulus Kirchhof
Sufficient exercise and sleep, a balanced diet, moderate alcohol consumption and a good approach to handle stress have been known as lifestyles that protect health and longevity since the Middle Age. This traditional prevention quintet, turned into a sextet by smoking cessation, has been the basis of the "preventive personality" that formed in the twentieth century. Recent analyses of big data sets including genomic and physiological measurements have unleashed novel opportunities to estimate individual health risks with unprecedented accuracy, allowing to target preventive interventions to persons at high risk and at the same time to spare those in whom preventive measures may not be needed or even be harmful...
December 16, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29246506/age-related-changes-of-skeletal-muscle-mass-and-strength-among-italian-and-taiwanese-older-people-results-from-the-milan-expo-2015-survey-and-the-i-lan-longitudinal-aging-study
#17
Emanuele Marzetti, An-Chun Hwang, Matteo Tosato, Li-Ning Peng, Riccardo Calvani, Anna Picca, Liang-Kung Chen, Francesco Landi
BACKGROUND: Muscle mass and strength ineluctably decline with advancing age. Yet, the impact of ethnicity on the pattern of changes and their magnitude is unclear. The aims of the present study were to analyze age- and gender-specific changes in measures of muscle mass and strength among community-living persons and to identify differences between Caucasian and Asian participants. METHODS: The Italian survey ("Longevity Check-up"), conducted during Milan EXPO 2015, consisted of a population assessment aimed at evaluating the prevalence of specific health metrics in persons outside of a conventional research setting (n=1924), with a special focus on muscle mass and strength...
December 12, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29243342/achilles-heel-of-li-air-batteries-li2co3
#18
Zhiwei Zhao, Jun Huang, Zhangquan Peng
Lithium-air battery (LAB) is envisaged as an ultimate energy storage device because of its highest theoretical specific energy among all known battery chemistries. However, parasitic reactions bring about vexing issues on the efficiency and longevity of LAB, among which the formation and decomposition of lithium carbonate, Li_2 CO_3, is of paramount importance. The discovery of Li_2 CO_3 as the main discharge product in carbonate-based electrolytes once brought researchers to 'the end of the idyll' in the early 2010s...
December 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29240842/analysis-of-ecological-thresholds-in-a-temperate-forest-undergoing-dieback
#19
Philip Martin, Adrian C Newton, Elena Cantarello, Paul M Evans
Positive feedbacks in drivers of degradation can cause threshold responses in natural ecosystems. Though threshold responses have received much attention in studies of aquatic ecosystems, they have been neglected in terrestrial systems, such as forests, where the long time-scales required for monitoring have impeded research. In this study we explored the role of positive feedbacks in a temperate forest that has been monitored for 50 years and is undergoing dieback, largely as a result of death of the canopy dominant species (Fagus sylvatica, beech)...
2017: PloS One
https://www.readbyqxmd.com/read/29239644/the-effects-of-team-reflexivity-on-psychological-well-being-in-manufacturing-teams
#20
Jingqiu Chen, Peter A Bamberger, Yifan Song, Dana R Vashdi
While the impact of team reflexivity (a.k.a. after-event-reviews, team debriefs) on team performance has been widely examined, we know little about its implications on other team outcomes such as member well-being. Drawing from prior team reflexivity research, we propose that reflexivity-related team processes reduce demands, and enhance control and support. Given the centrality of these factors to work-based strain, we posit that team reflexivity, by affecting these factors, may have beneficial implications on 3 core dimensions of employee burnout, namely exhaustion, cynicism, and inefficacy (reduced personal accomplishment)...
December 14, 2017: Journal of Applied Psychology
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