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https://www.readbyqxmd.com/read/28649105/-aging-and-homeostasis-age-associated-diseases-and-clinical-application-of-nmn-nicotinamide-mononucleotide
#1
Junichiro Irie, Hiroshi Itoh
Sirtuins are NAD(+)-dependent deacetylase and have drawn much attention as important regulators of aging and longevity. Because NAD(+) decline during the aging process, the approach to regulating aging using NAD(+) precursor such as nicotinamide mononucleotide (NMN) to replenish cellular NAD(+) through the activation of sirtuins have been investigated. In various animal models, NMN has been shown to mitigate age-associated physiological changes in liver, adipose tissue, muscle, pancreas, kidney, retina, and central nerve system...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28646299/effective-combined-water-and-sideband-suppression-for-low-speed-tissue-and-in-vivo-mas-nmr
#2
Yalda Liaghati Mobarhan, Jochem Struppe, Blythe Fortier-McGill, André J Simpson
High-resolution magic angle spinning (HR-MAS) NMR is a powerful technique that can provide metabolic profiles and structural constraints on intact biological and environmental samples such as cells, tissues and living organisms. However, centripetal force from fast spinning can lead to a loss of sample integrity. In analyses focusing on structural organization, metabolite compartmentalization or in vivo studies, it is critical to keep the sample intact. As such, there is growing interest in slow spinning studies that preserve sample longevity...
June 23, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28633424/three-dimensional-3d-heparg-spheroid-model-with-physiologically-relevant-xenobiotic-metabolism-competence-and-hepatocyte-functionality-for-liver-toxicity-screening
#3
Sreenivasa C Ramaiahgari, Suramya Waidyanatha, Darlene Dixon, Michael J DeVito, Richard S Paules, Stephen S Ferguson
Effective prediction of human responses to chemical and drug exposure is of critical importance in environmental toxicology research and drug development. While significant progress has been made to address this challenge using in vitro liver models, these approaches often fail due to inadequate tissue model functionality. Herein, we describe the development, optimization, and characterization of a novel three-dimensional (3D) spheroid model using differentiated HepaRG cells that achieve and maintain physiologically-relevant levels of xenobiotic metabolism (CYP1A2, CYP2B6, and CYP3A4/5)...
June 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28622501/microbiome-and-longevity-gut-microbes-send-signals-to-host-mitochondria
#4
Jan Gruber, Brian K Kennedy
The microbiome has emerged as a major determinant of the functioning of host organisms, affecting both health and disease. Here, Han et al. use the workhorse of aging research, C. elegans, to identify specific mechanisms by which gut bacteria influence mitochondrial dynamics and aging, a first step toward analogous manipulations to modulate human aging.
June 15, 2017: Cell
https://www.readbyqxmd.com/read/28621178/interview-with-bernard-siegel
#5
Bernard Siegel
Bernard Siegel is the Founder and full-time Executive Director of the nonprofit Regenerative Medicine Foundation (FL, USA). He is the Founder and the Co-chair of the World Stem Cell Summit series of global conferences and Editor-in-Chief of the World Stem Cell Report. He received his undergraduate and law degrees from the University of Miami (BA, 1972; JD, 1975) and has been a member of the Florida Bar since 1975. As a recognized policy expert relating to stem cell research, regenerative medicine and cloning, Bernard works with the world's leading stem cell researchers and advocates...
June 16, 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28604293/lives-in-the-asylum-record-1864-to-1910-utilising-large-data-collection-for-histories-of-psychiatry-and-mental-health
#6
Angela McCarthy, Catharine Coleborne, Maree O'Connor, Elspeth Knewstubb
This article examines the research implications and uses of data for a large project investigating institutional confinement in Australia and New Zealand. The cases of patients admitted between 1864 and 1910 at four separate institutions, three public and one private, provided more than 4000 patient records to a collaborative team of researchers. The utility and longevity of this data and the ways to continue to understand its significance and contents form the basis of this article's interrogation of data collection and methodological issues surrounding the history of psychiatry and mental health...
July 2017: Medical History
https://www.readbyqxmd.com/read/28604054/preventive-interventions-for-the-second-half-of-life-a-systematic-review
#7
Cother Hajat, Adriana Selwyn, Mark Harris, Derek Yach
OBJECTIVE: Recent improvements in life expectancy globally require intensified focus on noncommunicable diseases and age-related conditions. The purpose of this article is to inform the development of age-specific prevention guidelines for adults aged 50 and above, which are currently lacking. DATA SOURCE: PubMed, Cochrane database, and Google Scholar and explicit outreach to experts in the field. STUDY INCLUSION AND EXCLUSION CRITERIA: Meta-analyses, intervention-based, and prospective cohort studies that reported all-cause mortality, disease-specific mortality, or morbidity in adults were included...
January 1, 2017: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/28599250/evaluation-of-mir-15a-and-mir-16-1-as-prognostic-biomarkers-in-chronic-lymphocytic-leukemia
#8
REVIEW
Tatiane Vieira Braga, Fernanda Cristina Gontijo Evangelista, Lorena Caixeta Gomes, Sérgio Schusterschitz da Silva Araújo, Maria das Graças Carvalho, Adriano de Paula Sabino
Chronic lymphocytic leukemia (CLL) is a B lineage neoplasm, characterized by the accumulation of B lymphocytes of great longevity, and usually develops as a result of the inhibition of apoptosis. Clinical evolution is extremely variable amongst affected individuals with survival ranging from a few months in aggressive cases, to a few decades in cases of indolent CLL. The identification of new prognostic factors, apart from clinical staging, has been an important research topic aiming at a better understanding of CLL...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28598568/managing-biological-control-services-through-multi-trophic-trait-interactions-review-and-guidelines-for-implementation-at-local-and-landscape-scales
#9
David J Perović, Sagrario Gámez-Virués, Douglas A Landis, Felix Wäckers, Geoff M Gurr, Stephen D Wratten, Min-Sheng You, Nicolas Desneux
Ecological studies are increasingly moving towards trait-based approaches, as the evidence mounts that functions, as opposed to taxonomy, drive ecosystem service delivery. Among ecosystem services, biological control has been somewhat overlooked in functional ecological studies. This is surprising given that, over recent decades, much of biological control research has been focused on identifying the multiple characteristics (traits) of species that influence trophic interactions. These traits are especially well developed for interactions between arthropods and flowers - important for biological control, as floral resources can provide natural enemies with nutritional supplements, which can dramatically increase biological control efficiency...
June 9, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28595161/non-linear-actions-of-physiological-agents-finite-disarrangements-elicit-fitness-benefits
#10
REVIEW
Filip Sedlic, Zdenko Kovac
Finite disarrangements of important (vital) physiological agents and nutrients can induce plethora of beneficial effects, exceeding mere attenuation of the specific stress. Such response to disrupted homeostasis appears to be universally conserved among species. The underlying mechanism of improved fitness and longevity, when physiological agents act outside their normal range is similar to hormesis, a phenomenon whereby toxins elicit beneficial effects at low doses. Due to similarity with such non-linear response to toxins described with J-shaped curve, we have coined a new term "mirror J-shaped curves" for non-linear response to finite disarrangement of physiological agents...
May 18, 2017: Redox Biology
https://www.readbyqxmd.com/read/28587826/safety-assessment-of-cultivated-fruiting-body-of-ophiocordyceps-sinensis-evaluated-through-subacute-toxicity-in-rats
#11
Shin Yee Fung, Sook Shien Lee, Nget Hong Tan, Jayalakshmi Pailoor
ETHNOPHARMACOLOGICAL RELEVANCE: Ophiocordyceps sinensis (Berk.) G.H. Sung, J.M. Sung, Hywel-Jones & Spatafora is one of the most renowned traditional Chinese medicine used as tonic, renal, respiratory and reproductive health, promote longevity and overall improvement in quality of life. Natural production of O. sinensis is limited due to its extreme specificity in host range and confined geographic distribution. Therefore, cultivation of the fungus was developed to meet high demand for commercialization as nutraceutical...
June 3, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28582747/application-of-drum-compost-and-vermicompost-to-improve-soil-health-growth-and-yield-parameters-for-tomato-and-cabbage-plants
#12
Linee Goswami, Anil Nath, Sweety Sutradhar, Satya Sundar Bhattacharya, Ajay Kalamdhad, Kowsalya Vellingiri, Ki-Hyun Kim
Utilization of different types of solid wastes through composting is important for environmental sustainability and restoring soil quality. Although drum composting is an efficient technology, the possibility of heavy metal contamination restricts its large-scale use. In this research, a field experiment was conducted to evaluate the impact of water hyacinth drum compost (DC) and traditional vermicompost (VC) on soil quality and crop growth in an agro-ecosystem cultivated intensively with tomato and cabbage as test crops...
June 2, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28579605/aging-reversal-and-healthy-longevity-is-in-reach-dependence-on-mitochondrial-dna-heteroplasmy-as-a-key-molecular-target
#13
George B Stefano, Richard M Kream
Recent trends in biomedical research have highlighted the potential for effecting significant extensions in longevity with enhanced quality of life in aging human populations. Within this context, any proposed method to achieve enhanced life extension must include therapeutic approaches that draw upon essential biochemical and molecular regulatory processes found in relatively simple single cell organisms that are evolutionarily conserved within complex organ systems of higher animals. Current critical thinking has established the primacy of mitochondrial function in maintaining good health throughout plant and animal phyla...
June 5, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28579476/modeling-neurodegenerative-diseases-with-patient-derived-induced-pluripotent-cells-possibilities-and-challenges
#14
REVIEW
Anna Poon, Yu Zhang, Abinaya Chandrasekaran, Phetcharat Phanthong, Benjamin Schmid, Troels T Nielsen, Kristine K Freude
The rising prevalence of progressive neurodegenerative diseases coupled with increasing longevity poses an economic burden at individual and societal levels. There is currently no effective cure for the majority of neurodegenerative diseases and disease-affected tissues from patients have been difficult to obtain for research and drug discovery in pre-clinical settings. While the use of animal models has contributed invaluable mechanistic insights and potential therapeutic targets, the translational value of animal models could be further enhanced when combined with in vitro models derived from patient-specific induced pluripotent stem cells (iPSCs) and isogenic controls generated using CRISPR-Cas9 mediated genome editing...
June 2, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28577754/a-review-on-the-mechanical-and-thermodynamic-robustness-of-superhydrophobic-surfaces
#15
REVIEW
Liam R J Scarratt, Ullrich Steiner, Chiara Neto
Advancements in the fabrication and study of superhydrophobic surfaces have been significant over the past 10years, and some 20years after the discovery of the lotus effect, the study of special wettability surfaces can be considered mainstream. While the fabrication of superhydrophobic surfaces is well advanced and the physical properties of superhydrophobic surfaces well-understood, the robustness of these surfaces, both in terms of mechanical and thermodynamic properties, are only recently getting attention in the literature...
May 30, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28576337/angiostrongylus-cantonensis-daf-2-regulates-dauer-longevity-and-stress-in-caenorhabditis-elegans
#16
Baolong Yan, Weiwei Sun, Xiaomeng Shi, Liyang Huang, Lingzi Chen, Suhua Wang, Lanzhu Yan, Shaohui Liang, Huicong Huang
The insulin-like signaling (IIS) pathway is considered to be significant in regulating fat metabolism, dauer formation, stress response and longevity in Caenorhabditis elegans. "Dauer hypothesis" indicates that similar IIS transduction mechanism regulates dauer development in free-living nematode C. elegans and the development of infective third-stage larvae (iL3) in parasitic nematodes, and this is bolstered by a few researches on structures and functions of the homologous genes in the IIS pathway cloned from several parasitic nematodes...
June 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28574903/hsct-based-approaches-for-tolerance-induction-in-renal-transplant
#17
Anita Y Chhabra, Joseph Leventhal, Andrea R Merchak, Suzanne Ildstad
Renal transplantation has become the preferred treatment for end stage kidney failure. Although short-term graft survival has significantly improved as advances in immunosuppression have occurred, long term patient and graft survival have not. Approximately only 50% of renal transplant recipients are alive at 10 years due to the toxicities of immunosuppression and alloimmunity. Emerging research on cell-based therapies is opening a new door for patients to receive the organs they need without sacrificing quality of life and longevity because of drug based immunosuppression...
June 1, 2017: Transplantation
https://www.readbyqxmd.com/read/28573452/sow-efficiency-and-early-piglet-mortality-in-two-local-pig-breeds-on-smallholder-farms-in-northern-vietnam-a-longitudinal-study
#18
Philipp C Muth, Le T T Huyen, Anne Valle Zárate
In the recent past, pig performance and sow management on smallholder farms in the Southeast Asian Massif have been extensively researched. But the objective of this study was to investigate the lifetime efficiency of breeding sows of the local Vietnamese Ban (n = 89) and Mong Cai (n = 131) breeds in a production system context. The impact of sow longevity was considered in particular. In addition, predictors of early pre-weaning mortality in piglets were investigated. In total, nine villages of Son La province, situated in the uplands of north-western Vietnam, were selected, differing in access to markets, production intensity, and pig management level...
June 1, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28571543/aspartame-should-individuals-with-type-ii-diabetes-be-taking-it
#19
Arbind Kumar Choudhary
BACKGROUND: Individuals with type II diabetes (T2D) have to manage blood glucose levels to sustain health and longevity. Artificial sweeteners (including aspartame) are suggested sugar alternatives for these individuals. The safety of aspartame in particular, has long been the centre of debate. Although it is such a controversial product, many clinicians recommend its use to T2D patients, during a controlled diet and as part of an intervention strategy. Aspartame is 200 times sweeter than sugar and has a negligible effect on blood glucose levels, and it is suggested for use so that T2D can control carbohydrate intake and blood glucose levels...
May 31, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28569449/a-randomised-controlled-trial-of-a-nanofilled-composite-at-three-years-did-selective-enamel-etching-have-an-effect
#20
F J T Burke, Russell J Crisp, William M Palin, Peter Sands, O Thompson, Jonathan Jones, Ali James, Kerry Osborne-Smith
General dental practice is increasingly being recognised as the ideal situation for the conduct of clinical trials into the longevity of restorations. The aim of this study was to investigate the survival of 75 nanofilled resin composite restorations placed in an assortment of cavities using a self-etch dentine bonding agent, in five UK dental practices by members of the UK-based practice-based research group, the PREP Panel, with half of the restorations receiving a selective enamel etch and the other half being placed using a self-etching approach...
March 2017: European Journal of Prosthodontics and Restorative Dentistry
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