keyword
MENU ▼
Read by QxMD icon Read
search

Lifespan

keyword
https://www.readbyqxmd.com/read/28738243/both-facilitatory-and-inhibitory-impairments-underlie-age-related-differences-of-proactive-cognitive-control-across-the-adult-lifespan
#1
Pascal W M Van Gerven, Petra P M Hurks, Jos J Adam
We investigated two components of proactive cognitive control, response facilitation and response inhibition, in an adult lifespan sample (N=544, age range=18-91years) by administering two response-preparation tasks: a procue task, primarily involving facilitation, and an anticue task, involving both facilitation and inhibition. Cues in both tasks corresponded with the index and middle fingers of either the left or right hand. After a random preparation interval (PI) of 100-850ms following the onset of the cue signal, a single-target stimulus indicated the required response...
July 21, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/28737295/towards-a-unified-analysis-of-brain-maturation-and-aging-across-the-entire-lifespan-a-mri-analysis
#2
Pierrick Coupé, Gwenaelle Catheline, Enrique Lanuza, José Vicente Manjón
There is no consensus in literature about lifespan brain maturation and senescence, mainly because previous lifespan studies have been performed on restricted age periods and/or with a limited number of scans, making results instable and their comparison very difficult. Moreover, the use of nonharmonized tools and different volumetric measurements lead to a great discrepancy in reported results. Thanks to the new paradigm of BigData sharing in neuroimaging and the last advances in image processing enabling to process baby as well as elderly scans with the same tool, new insights on brain maturation and aging can be obtained...
July 24, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28736759/forecasted-trends-in-disability-and-life-expectancy-in-england-and-wales-up-to-2025-a-modelling-study
#3
Maria Guzman-Castillo, Sara Ahmadi-Abhari, Piotr Bandosz, Simon Capewell, Andrew Steptoe, Archana Singh-Manoux, Mika Kivimaki, Martin J Shipley, Eric J Brunner, Martin O'Flaherty
BACKGROUND: Reliable estimation of future trends in life expectancy and the burden of disability is crucial for ageing societies. Previous forecasts have not considered the potential impact of trends in disease incidence. The present prediction model combines population trends in cardiovascular disease, dementia, disability, and mortality to forecast trends in life expectancy and the burden of disability in England and Wales up to 2025. METHODS: We developed and validated the IMPACT-Better Ageing Model-a probabilistic model that tracks the population aged 35-100 years through ten health states characterised by the presence or absence of cardiovascular disease, dementia, disability (difficulty with one or more activities of daily living) or death up to 2025, by use of evidence-based age-specific, sex-specific, and year-specific transition probabilities...
July 2017: Lancet. Public Health
https://www.readbyqxmd.com/read/28736550/probiotic-enterococcus-mundtii-isolate-protects-the-model-insect-tribolium-castaneum-against-bacillus-thuringiensis
#4
Thorben Grau, Andreas Vilcinskas, Gerrit Joop
Enterococcus mundtii strains isolated from the larval feces of the Mediterranean flour moth Ephestia kuehniella show antimicrobial activity against a broad spectrum of Gram-positive and Gram-negative bacteria. The in vitro probiotic characterization of one isolate revealed a high auto-aggregation score, a hydrophilic cell surface, tolerance for low pH, no hemolytic activity, and susceptibility to all tested antibiotics. We used the red flour beetle Tribolium castaneum, an established model organism, for the in vivo characterization of one probiotic E...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28735906/predicting-the-presence-of-sleep-disordered-breathing-in-children-with-down-syndrome
#5
Joy Nehme, Robert LaBerge, Mary Pothos, Nick Barrowman, Lynda Hoey, Andrea Monsour, Madelaine Kukko, Sherri Lynne Katz
OBJECTIVE: Sleep-disordered breathing (SDB) is highly prevalent in children with Down syndrome. Given the scarcity of resources and the presence of risk factors for SDB in this population, the objective of this study is to identify the clinical predictors of SDB, which would assist prioritization of children with Down syndrome for SDB evaluation. METHODS: A retrospective cohort study was conducted on children enrolled in the Down syndrome clinic at CHEO who underwent polysomnography in 2004-2014...
August 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28735161/types-of-strain-among-family-members-of-individuals-with-autism-spectrum-disorder-across-the-lifespan
#6
Carolyn M Shivers, Katarina Krizova, Gloria K Lee
BACKGROUND: Although increased caregiver strain is often found among family caregivers of individuals with autism spectrum disorder, it is still unclear as to how different types of strain relate to amount and types of caregiving across the lifespan. AIMS: The present study examined different types of strain (i.e. subjective internalized strain, subjective externalized strain, and objective strain) and how such strain relates to the amount of caregiving responsibilities...
July 20, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28734516/pediatric-human-immunodeficiency-virus-continuum-of-care-a-concise-review-of-evidence-based-practice
#7
REVIEW
Megan E Gray, Phillip Nieburg, Rebecca Dillingham
Children and adolescents living with human immunodeficiency virus (HIV) represent a population that requires a unique approach to HIV care. Prevention, testing, initiation of antiretroviral therapy (ART), and retention and engagement in care are critical steps. Each step requires providers to address age-specific barriers, so that successful and prolonged viral suppression can occur. Adherence to ART, disclosure of HIV-positive status, and stigma are examples of struggles faced by youth, their families, and health care providers...
August 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28732515/sexually-divergent-induction-of-microglial-associated-neuroinflammation-with-hippocampal-aging
#8
Colleen A Mangold, Benjamin Wronowski, Mei Du, Dustin R Masser, Niran Hadad, Georgina V Bixler, Robert M Brucklacher, Matthew M Ford, William E Sonntag, Willard M Freeman
BACKGROUND: The necessity of including both males and females in molecular neuroscience research is now well understood. However, there is relatively limited basic biological data on brain sex differences across the lifespan despite the differences in age-related neurological dysfunction and disease between males and females. METHODS: Whole genome gene expression of young (3 months), adult (12 months), and old (24 months) male and female C57BL6 mice hippocampus was analyzed...
July 21, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28732077/mutations-in-the-caenorhabditis-elegans-orthologs-of-human-genes-required-for-mitochondrial-trna-modification-cause-similar-electron-transport-chain-defects-but-different-nuclear-responses
#9
Carmen Navarro-González, Ismaïl Moukadiri, Magda Villarroya, Ernesto López-Pascual, Simon Tuck, M-Eugenia Armengod
Several oxidative phosphorylation (OXPHOS) diseases are caused by defects in the post-transcriptional modification of mitochondrial tRNAs (mt-tRNAs). Mutations in MTO1 or GTPBP3 impair the modification of the wobble uridine at position 5 of the pyrimidine ring and cause heart failure. Mutations in TRMU affect modification at position 2 and cause liver disease. Presently, the molecular basis of the diseases and why mutations in the different genes lead to such different clinical symptoms is poorly understood...
July 21, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28730408/evolution-of-the-hiv-1-transgenic-rat-utility-in-assessing-the-progression-of-hiv-1-associated-neurocognitive-disorders
#10
Kristen A McLaurin, Rosemarie M Booze, Charles F Mactutus
Understanding the progression of HIV-1-associated neurocognitive disorders (HAND) is a critical need as the prevalence of HIV-1 in older individuals (>50 years) is markedly increasing due to the great success of combination antiretroviral therapy (cART). Longitudinal experimental designs, in comparison to cross-sectional studies, provide an opportunity to establish age-related disease progression in HAND. The HIV-1 transgenic (Tg) rat, which has been promoted for investigating the effect of long-term HIV-1 viral protein exposure, was used to examine two interrelated goals...
July 20, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28729836/an-overview-of-herbal-products-and-secondary-metabolites-used-for-management-of-type-two-diabetes
#11
REVIEW
Ajda Ota, Nataša P Ulrih
Diabetes mellitus is a common effect of uncontrolled high blood sugar and it is associated with long-term damage, dysfunction, and failure of various organs. In the adult population, the global prevalence of diabetes has nearly doubled since 1980. Without effective prevention and management programs, the continuing significant rise in diabetes will have grave consequences on the health and lifespan of the world population, and also on the world economy. Supplements can be used to correct nutritional deficiencies or to maintain an adequate intake of certain nutrients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28729616/identification-of-a-t-cell-gene-expression-clock-obtained-by-exploiting-a-mz-twin-design
#12
Daniel Remondini, Nathan Intrator, Claudia Sala, Michela Pierini, Paolo Garagnani, Isabella Zironi, Claudio Franceschi, Stefano Salvioli, Gastone Castellani
Many studies investigated age-related changes in gene expression of different tissues, with scarce agreement due to the high number of affecting factors. Similarly, no consensus has been reached on which genes change expression as a function of age and not because of environment. In this study we analysed gene expression of T lymphocytes from 27 healthy monozygotic twin couples, with ages ranging over whole adult lifespan (22 to 98 years). This unique experimental design allowed us to identify genes involved in normative aging, which expression changes independently from environmental factors...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729391/edward-f-adolph-distinguished-lecture-skin-deep-insights-into-vascular-aging
#13
W Larry Kenney
The skin is an accessible model circulation for studying vascular function and dysfunction across the lifespan. Age-related changes, as well as those associated with disease progression, often appear first in the cutaneous circulation. Further, impaired vascular signaling and attendant endothelial dysfunction -- one of the earliest indicators of cardiovascular pathogenesis -- occurs in a similar fashion across multiple tissue beds throughout the body including the skin. Because microvascular dysfunction is a better predictor of long term outcomes and adverse cardiovascular events than is large vessel disease, understanding age-associated changes in the control of the human cutaneous microcirculation is important...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28729086/non-human-primates-as-a-model-for-aging
#14
REVIEW
Ricki J Colman
There has been, and continues to be, a dramatic shift in the human population towards older ages necessitating biomedical research aimed at better understanding the basic biology of aging and age-related diseases and facilitating new and improved therapeutic options. As it is not practical to perform the breadth of this research in humans, animal models are necessary to recapitulate the complexity of the aging environment. The mouse model is most frequently chosen for these endeavors, however, they are frequently not the most appropriate model...
July 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28728596/implementation-of-longevity-promoting-supplements-and-medications-in-public-health-practice-achievements-challenges-and-future-perspectives
#15
REVIEW
Alexander Vaiserman, Oleh Lushchak
BACKGROUND: Most modern societies undergo rapid population aging. The rise in life expectancy, nevertheless, is not accompanied, to date, by the same increment of healthspan. Efforts to increase healthspan by means of supplements and pharmaceuticals targeting aging-related pathologies are presently in spotlight of a new branch in geriatric medicine, geroscience, postulating that aging could be manipulated in such a way that will in parallel allow delay the onset of all age-associated chronic disorders...
July 20, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28728468/the-roles-of-chronological-age-and-time-perspective-in-memory-positivity
#16
Irene P Kan, Shaina L Garrison, Anna B Drummey, Brian E Emmert, Leeland L Rogers
The observation that older adults show enhanced cognition for emotionally positive information has been labeled the positivity effect (Reed, Chan, & Mikels, 2014). According to the Socioemotional Selectivity Theory (SST, Carstensen, 1991), a prominent lifespan development theory, cognition is strongly influenced by motivational goals, and these goals are impacted by subjective time perspective. Although the positivity effect is most commonly observed in older adults, as age usually co-varies with time perspective, the SST posits that time perspective, not age, is the key explanatory factor of positivity...
July 21, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28727758/longevity-effect-of-a-polysaccharide-from-chlorophytum-borivilianum-on-caenorhabditis-elegans-and-saccharomyces-cerevisiae
#17
Steve Thomas Pannakal, Sibylle Jäger, Albert Duranton, Amit Tewari, Subarna Saha, Aneesha Radhakrishnan, Nita Roy, Jean François Kuntz, Soraya Fermas, Darryl James, Jane Mellor, Namita Misra, Lionel Breton
The traditional Indian medicine, Ayurveda, provides insights and practical solutions towards a healthy life style. Rasayana is a branch of Ayurveda known for preserving and promoting health, enhancing the quality of life and delaying the aging process. In the traditional knowledge, the Rasayana herb, Chlorophytum borivilianum (C. borivilanum) is regarded as a general health promoting tonic that delays aging and increases lifespan, cognitive function and physical strength. Aging is a complex and multifactorial physiological phenomenon that manifests itself over a wide range of biological systems, tissues, and functions...
2017: PloS One
https://www.readbyqxmd.com/read/28727724/grandmothering-and-cognitive-resources-are-required-for-the-emergence-of-menopause-and-extensive-post-reproductive-lifespan
#18
Carla Aimé, Jean-Baptiste André, Michel Raymond
Menopause, the permanent cessation of ovulation, occurs in humans well before the end of the expected lifespan, leading to an extensive post-reproductive period which remains a puzzle for evolutionary biologists. All human populations display this particularity; thus, it is difficult to empirically evaluate the conditions for its emergence. In this study, we used artificial neural networks to model the emergence and evolution of allocation decisions related to reproduction in simulated populations. When allocation decisions were allowed to freely evolve, both menopause and extensive post-reproductive life-span emerged under some ecological conditions...
July 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28726994/cell-biology-symposium-practical-application-of-the-basic-aspects-of-glut4-membrane-trafficking-and-insulin-signaling-on-issues-related-to-animal-agriculture
#19
S B Smith
Because of the relatively short lifespans of beef cattle, membrane trafficking in relation to inflammation is not considered important unless it overtly affects productivity. However, glucose uptake and utilization is important for adipose tissue development in beef cattle, and increasing glucose utilization in intramuscular adipose tissue can increase carcass quality. Research from the 1980s demonstrated a lack of insulin sensitivity in isolated bovine adipocytes and adipose tissue explants incubated in vitro...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28726334/insulin-sensitivity-across-the-lifespan-from-obese-adolescents-to-obese-adults-with-impaired-glucose-tolerance-who-is-worse-off
#20
Silva Arslanian, Joon Young Kim, Alexis Nasr, Fida Bacha, Hala Tfayli, SoJung Lee, Frederico G S Toledo
OBJECTIVE: Youth type 2 diabetes mellitus (T2DM) occurs decades earlier than adult T2DM and is characterized by high therapeutic failure rates and decreased response to insulin sensitizers suggesting a more severe disease process than in adults. To explain these observations, we hypothesized that insulin resistance is worse in obese youth than adults with impaired glucose tolerance (IGT), a state of high-risk for T2DM. As proof-of-concept, we compared insulin sensitivity between BMI-, sex-, and race-matched obese youth vs adults with IGT...
July 20, 2017: Pediatric Diabetes
keyword
keyword
23866
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"