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https://www.readbyqxmd.com/read/29667931/ave0991-a-nonpeptide-analogue-of-ang-1-7-attenuates-aging-related-neuroinflammation
#1
Teng Jiang, Liu-Jun Xue, Yang Yang, Qing-Guang Wang, Xiao Xue, Zhou Ou, Qing Gao, Jian-Quan Shi, Liang Wu, Ying-Dong Zhang
During the aging process, chronic neuroinflammation induced by microglia is detrimental for the brain and contributes to the etiology of several aging-related neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. As a newly identified axis of renin-angiotensin system, ACE2/Ang-(1-7)/MAS1 axis plays a crucial role in modulating inflammatory responses under various pathological conditions. However, its relationship with aging-related neuroinflammation is less studied so far. In this study, by using SAMP8 mice, an animal model of accelerated aging, we revealed that the neuroinflammation in the aged brain might be attributed to a decreased level of Ang-(1-7)...
April 17, 2018: Aging
https://www.readbyqxmd.com/read/29667924/telomerase-may-paradoxically-accelerate-aging-of-the-dna-methylome
#2
Andrew R Mendelsohn, James W Larrick
DNA methylation (DNAm) clocks such as the Horvath DNAm clock provide the most accurate biological determination of biological age relative to chronological age available today. However, there is little correlation between DNAm clocks, telomere-based aging clocks, and transcriptomic-based aging clocks. Recently, a genome-wide association study identified single-nucleotide polymorphism variants of TERT, the gene that encodes telomerase, as accelerating intrinsic aging in the Horvath DNAm clock. These same variants have been previously associated with long telomeres in leukocytes, suggesting that TERT acts paradoxically on telomere-associated aging and DNAm-associated aging...
April 2018: Rejuvenation Research
https://www.readbyqxmd.com/read/29667718/trajectories-of-psychopathology-in-extremely-low-birth-weight-survivors-from-early-adolescence-to-adulthood-a-20-year-longitudinal-study
#3
Ryan J Van Lieshout, Mark A Ferro, Louis A Schmidt, Michael H Boyle, Saroj Saigal, Katherine M Morrison, Karen J Mathewson
BACKGROUND: Individuals born extremely preterm are exposed to significant perinatal stresses that are associated with an increased risk of psychopathology. However, a paucity of longitudinal studies has prevented the empirical examination of long-term, dynamic effects of perinatal adversity on mental health. Here, internalizing and externalizing problems from adolescence through adulthood were compared in individuals born at extremely low birth weight (ELBW; <1,000 g) and normal birth weight (NBW; >2,500 g)...
April 18, 2018: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29667190/age-related-changes-in-late-i-waves-influence-motor-cortex-plasticity-induction-in-older-adults
#4
George M Opie, John Cirillo, John G Semmler
KEYPOINTS SUMMARY: The response to neuroplasticity interventions using transcranial magnetic stimulation (TMS) is reduced in older adults, which may be due, in part, to age-related alterations in interneuronal (I-wave) circuitry. The current study investigated age-related changes in interneuronal characteristics and whether they influence motor cortical plasticity in older adults. While I-wave recruitment was unaffected by age, there was a shift in the temporal characteristics of the late, but not early I-waves...
April 18, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29667159/physical-activity-throughout-the-adult-life-span-and-domain-specific-cognitive-function-in-old-age-a-systematic-review-of-cross-sectional-and-longitudinal-data
#5
REVIEW
Tobias Engeroff, Tobias Ingmann, Winfried Banzer
BACKGROUND: A growing body of literature suggests that physical activity might alleviate the age-related neurodegeneration and decline of cognitive function. However, most of this evidence is based on data investigating the association of exercise interventions or current physical activity behavior with cognitive function in elderly subjects. OBJECTIVE: We performed a systematic review and hypothesize that physical activity during the adult life span is connected with maintained domain-specific cognitive functions during late adulthood defined as age 60+ years...
April 17, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29666834/androgen-action-in-prostate-function-and-disease
#6
REVIEW
Partha P Banerjee, Subhadra Banerjee, Terry R Brown, Barry R Zirkin
Benign prostatic hyperplasia (BPH) is an enlargement of the prostate gland that is frequently found in aging men. Androgens are essential for the development and differentiated function of the prostate, as well as for proliferation and survival of prostatic cells. In man, dog and rodent, there are age-related decreases in serum testosterone. Despite the lower serum testosterone levels, benign prostatic hyperplasia increases with age in men and dogs, while age-dependent prostatic hyperplasia develops in the dorsal and lateral lobes of the rat prostate...
2018: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/29666476/hif1a-inactivation-rescues-photoreceptor-degeneration-induced-by-a-chronic-hypoxia-like-stress
#7
Maya Barben, Divya Ail, Federica Storti, Katrin Klee, Christian Schori, Marijana Samardzija, Stylianos Michalakis, Martin Biel, Isabelle Meneau, Frank Blaser, Daniel Barthelmes, Christian Grimm
Reduced choroidal blood flow and tissue changes in the ageing human eye impair oxygen delivery to photoreceptors and the retinal pigment epithelium. As a consequence, mild but chronic hypoxia may develop and disturb cell metabolism, function and ultimately survival, potentially contributing to retinal pathologies such as age-related macular degeneration (AMD). Here, we show that several hypoxia-inducible genes were expressed at higher levels in the aged human retina suggesting increased activity of hypoxia-inducible transcription factors (HIFs) during the physiological ageing process...
April 17, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29666388/the-cognitive-complexity-of-concurrent-cognitive-motor-tasks-reveals-age-related-deficits-in-motor-performance
#8
Anderson Souza Oliveira, Mikkel Staall Reiche, Cristina Ioana Vinescu, Sif Amalie Halkjær Thisted, Carina Hedberg, Miguel Nobre Castro, Martin Gronbech Jørgensen
Aging reduces cognitive functions, and such impairments have implications in mental and motor performance. Cognitive function has been recently linked to the risk of falls in older adults. Physical activities have been used to attenuate the declines in cognitive functions and reduce fall incidence, but little is known whether a physically active lifestyle can maintain physical performance under cognitively demanding conditions. The aim of this study was to verify whether physically active older adults present similar performance deficits during upper limb response time and precision stepping walking tasks when compared to younger adults...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29666126/domains-of-health-related-quality-of-life-in-age-related-macular-degeneration-a-qualitative-study-in-the-chinese-cultural-context
#9
Wei Bian, Junli Wan, Graeme Smith, Shiying Li, Mingqiong Tan, Fengjiao Zhou
OBJECTIVE: To explore which areas of health-related quality of life were affected in Chinese patients, and to identify whether the areas are well covered by validated questionnaires. DESIGN: A qualitative study based on semistructured interviews was conducted. A qualitative thematic analysis following the approach of Colaizzi was used to analyse the interview data for significant statements and phrases. The themes and subthemes organised from the analysis were then compared by using the following current instruments: National Eye Institute Visual Function Questionnaire (NEI-VFQ-25), Macular Disease Quality of life Questionnaire (MacDQoL) and Low-Luminance Questionnaire (LLD)...
April 17, 2018: BMJ Open
https://www.readbyqxmd.com/read/29665383/impact-of-aging-alzheimer-s-disease-and-parkinson-s-disease-on-the-blood-brain-barrier-transport-of-therapeutics
#10
Yijun Pan, Joseph A Nicolazzo
Older people are at greater risk of medicine-induced toxicities resulting from either increased drug sensitivity or age-related pharmacokinetic changes. The scenario is further complicated with the two most prevalent age-related neurodegenerative diseases, Alzheimer's disease (AD) and Parkinson's disease (PD). With aging, AD and PD, there is growing evidence of altered structure and function of the blood-brain barrier (BBB), including modifications to tight junctions and efflux transporters, such as P-glycoprotein...
April 14, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29665258/health-related-quality-of-life-and-fall-risk-associated-with-age-related-body-composition-changes-sarcopenia-obesity-and-sarcopenic-obesity
#11
Zeynel Abidin Öztürk, İbrahim Halil Türkbeyler, Azer Abiyev, Seval Kul, Bahadır Edizer, Funda Datli Yakaryılmaz, Gülçimen Soylu
BACKGROUND: Sarcopenia, obesity, and sarcopenic obesity are various features of the aging process that can cause important health issues. The present study was undertaken to investigate the interrelationship between those body composition changes including their clinical components and the quality of life variables. METHODS: 423 individuals aged 65 years or more were included in this cross-sectional study. Sarcopenia was diagnosed according to The European Working Group on Sarcopenia in Older People criteria...
April 17, 2018: Internal Medicine Journal
https://www.readbyqxmd.com/read/29665183/age-related-changes-of-proinsulin-processing-in-diabetic-and-non-diabetic-japanese-individuals
#12
Hiroshi Yoshino, Kyoko Kawakami, Gen Yoshino, Takahisa Hirose
AIM: The present study was carried out to examine whether the insulin secretory mechanism deteriorates during the aging process using the new intact proinsulin assay system in non-diabetic and diabetic individuals. METHODS: A total of 172 participants were separated into four groups according to their age (<64 years and >65 years) and an association of type 2 diabetes; that is, 46 older diabetics (mean age 74.5 ± 6.2 years, glycated hemoglobin [National Glycohemoglobin Standardization Program] 7...
April 17, 2018: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29664944/ccl2-single-nucleotide-polymorphism-of-rs1024611-implicates-prominence-of-inflammatory-cascade-by-univariate-modeling-in-indian-amd
#13
Neel Kamal Sharma, Kaushal Sharma, Ramandeep Singh, Suresh Kumar Sharma, Akshay Anand
BACKGROUND: The role of chemotactic protein CCL2/MCP-1 has been widely explored in age related macular degeneration (AMD) patients as well as animal models through our previous studies. AIM: Aim of the study was to examine the association of another variance of CCL2, rs1024611 in pathophysiology of AMD. METHODS: This particular SNP has been found to be involved in inflammatory processes in various diseases. Total 171 subjects were recruited in the study with all demographic details by administering a standard questionnaire...
2018: PloS One
https://www.readbyqxmd.com/read/29664881/tibial-fracture-nonunion-and-time-to-healing-following-reamed-intramedullary-nailing-risk-factors-based-on-a-single-centre-review-of-1003-patients
#14
Hannah L Dailey, Katherine A Wu, Ping-Shi Wu, Margaret M McQueen, Charles M Court-Brown
OBJECTIVE: To determine factors associated with nonunion of adult tibial fractures. DESIGN: Retrospective review with data collection for logistic regression and survival analysis. SETTING: Scottish Level I trauma centre, 1985 to 2007. PATIENTS: During this period, 1,590 adult tibial fractures were treated by reamed nailing and 1,003 met all inclusion criteria for the chosen analysis. INTERVENTION: Reamed intramedullary nailing...
April 3, 2018: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/29664737/insulin-regulates-astrocyte-gliotransmission-and-modulates-behavior
#15
Weikang Cai, Chang Xue, Masaji Sakaguchi, Masahiro Konishi, Alireza Shirazian, Heather A Ferris, Mengyao Li, Ruichao Yu, Andre Kleinridders, Emmanuel N Pothos, C Ronald Kahn
Complications of diabetes affect tissues throughout body, including central nervous system. Epidemiological studies show that diabetic patients have increased risk of depression, anxiety, age-related cognitive decline and Alzheimer's disease. Mice lacking insulin receptor in brain or on hypothalamic neurons display an array of metabolic abnormalities, however, the role of insulin action on astrocytes and neurobehaviors remains less well-studied. Here, we demonstrate that astrocytes are a direct insulin target in the brain and that knockout of IR on astrocytes causes increased anxiety and depressive-like behaviors in mice...
April 17, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29664724/factors-affecting-hearing-aid-adoption-and-use-a-qualitative-study
#16
Nicola E Gallagher, Jayne V Woodside
BACKGROUND: Despite a high prevalence of age-related hearing loss in older people, there is an unexplained low level of hearing aid adoption and use. Further research is required to determine the reason because hearing aids can vastly improve the quality of life for those with hearing loss. PURPOSE: The aim of this study was to explore factors associated with hearing aid adoption and use, and to determine whether these differed between groups with different hearing aid use behaviors...
April 2018: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29664159/reading-aids-for-adults-with-low-vision
#17
REVIEW
Gianni Virgili, Ruthy Acosta, Sharon A Bentley, Giovanni Giacomelli, Claire Allcock, Jennifer R Evans
BACKGROUND: The purpose of low-vision rehabilitation is to allow people to resume or to continue to perform daily living tasks, with reading being one of the most important. This is achieved by providing appropriate optical devices and special training in the use of residual-vision and low-vision aids, which range from simple optical magnifiers to high-magnification video magnifiers. OBJECTIVES: To assess the effects of different visual reading aids for adults with low vision...
April 17, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29663819/immunosenescence-the-role-in-the-immunotherapy-of-older-population
#18
M Prcina, M Novak, V Cigankova, E Kontsekova
With ageing of their populations, many societies are challenged with serious systemic diseases. One of the causes of these diseases could be the age-related defects in immune system termed immunosenescence. Immunosenescence is characterized by accumulation of memory and non-functional immune cells, impaired signalling due to restricted repertoire of receptors, overall pro-inflammatory environment and complete dysregulation of the immune system. Consequences of immunosenescence are serious, older people are not able to respond to new stimuli, including infections and vaccinations and are more prone to oncologic, neurodegenerative and autoimmune diseases (Ref...
2018: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29663652/a-longitudinal-study-of-serum-insulin-like-growth-factor-i-igf-i-levels-over-six-years-in-a-large-cohort-of-children-and-adolescents-with-type-1-diabetes-mellitus-a-marker-reflecting-diabetic-retinopathy
#19
Daniel Öberg, Jenny Salemyr, Eva Örtqvist, Anders Juul, Peter Bang
OBJECTIVE: To evaluate longitudinal serum IGF-I in a large cohort of children and adolescents with type 1 diabetes in relation to HbA1c, age, diabetes duration, and BMI, its association to height and retinopathy, and in comparison with healthy subject references. RESEARCH DESIGN AND METHODS: A total of 2,683 serum IGF-I values were obtained from 806 children and adolescents with T1DM, from annual blood samples for up to 6 consecutive years. RESULTS: In a multiple regression analysis IGF-I values were negatively correlated to HbA1c and diabetes duration, and positively correlated to BMI (p<0...
April 16, 2018: Pediatric Diabetes
https://www.readbyqxmd.com/read/29663613/distribution-and-progression-of-add-power-among-people-in-need-of-near-correction
#20
Xiaotong Han, Pei Ying Lee, Chi Liu, Mingguang He
IMPORTANCE: This study helps to better understand the need and trend in presbyopic add power in the aging society. BACKGROUND: Distribution and progression of presbyopic add power in East Asian population is largely unknown. DESIGN: Prospective cohort study. PARTICIPANTS: 303 participants from a population-based study of residents aged 35 years and older in Guangzhou, China. METHODS: Visual acuity (VA) test and non-cycloplegic automated refraction were performed at baseline in 2008 and the 6-year follow-up per standardized protocol...
April 16, 2018: Clinical & Experimental Ophthalmology
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