7,143 results match your criteria: "Institute of Gerontology.[Affiliation]"

Physician-reported barriers and facilitators to thyroid hormone deprescribing in older adults.

J Am Geriatr Soc

October 2024

Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.

Article Synopsis
  • Thyroid hormones are frequently prescribed in the U.S., especially to older adults, where misuse and overtreatment pose risks like heart and bone issues.
  • The study involved interviews with 19 healthcare professionals about the challenges and supports for deprescribing thyroid hormones in older patients, analyzing responses through a structured framework.
  • Key barriers included patient anxiety and misinformation, and systemic issues like time constraints and lack of knowledge among doctors; facilitators were strong communication and trust between patients and their physicians.
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  • The study used Phosphorus Magnetic Resonance Spectroscopy (P MRS) to analyze brain metabolites related to energy and cell membrane production in children and adults across various age groups.
  • Results showed that children had higher phosphomonoesters (PMEs) and γαATP levels, while adults had more phosphodiesters (PDEs) and lower intracellular pH, indicating different metabolic profiles based on age.
  • These findings suggest that as individuals age, there's a reduction in membrane synthesis and energy consumption, with a notable decline in metabolic processes occurring from childhood to older adulthood.
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Telomere length and 4-year changes in cognitive function in an older Mediterranean population at high risk of cardiovascular disease.

Age Ageing

October 2024

Consorcio CIBER, M.P. Fisiopatología de La Obesidad y Nutrición (CIBERObn), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain.

Background: Cognitive decline, a common process of brain ageing, has been associated with telomere length (TL). Delving into the identification of reliable biomarkers of brain ageing is essential to prevent accelerated cognitive impairment.

Methods: We selected 317 non-smoking 'Prevención con Dieta Mediterránea-Plus' (PREDIMED-Plus) participants (mean age, 65.

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Consensus statement on "Oral frailty" from the Japan Geriatrics Society, the Japanese Society of Gerodontology, and the Japanese Association on Sarcopenia and Frailty.

Geriatr Gerontol Int

November 2024

Joint Working Committee on Oral Frailty by the Japan Geriatrics Society, Japanese Society of Gerodontology, and Japanese Association on Sarcopenia and Frailty, Tokyo, Japan.

Article Synopsis
  • The concept of oral frailty was introduced in Japan in 2014 to raise awareness about declining oral function among older adults, which can lead to eating and communication difficulties.
  • Oral frailty can be identified using a simple 5-item checklist (OF-5) without needing a dental professional, and is defined by having at least two specific oral health issues, such as fewer teeth or difficulty swallowing.
  • Approximately 40% of older adults living in the community experience oral frailty, which is linked to poor nutrition, social isolation, and increased risks of disability and mortality.
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  • Subcortical brain structures play a crucial role in various disorders, and a study analyzed the genetic basis of brain volumes in nearly 75,000 individuals of European ancestry, revealing 254 loci linked to these volumes.
  • The research identified significant gene expression in neural cells, relating to brain aging and signaling, and found that polygenic scores could predict brain volumes across different ancestries.
  • The study highlights genetic connections between brain volumes and conditions like Parkinson's disease and ADHD, suggesting specific gene expression patterns could be involved in neuropsychiatric disorders.
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  • A study looked at how often older people getting home care used physical and hand restraints, like straps or cuffs, to keep them safe.
  • Most of the older adults (76%) had physical restraints, while about a third (34%) had hand restraints.
  • Researchers found that how well older adults could do daily activities and if they had paid caregivers were important in why restraints were used, mainly to stop falls or other accidents.
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Article Synopsis
  • * Recent efforts to stop smoking haven't been put into action yet, and it’s important to see what could happen if smoking rates stay the same or improve.
  • * Researchers used models to predict health outcomes by 2050 based on different scenarios of smoking rates, showing that cutting smoking could greatly improve health and life expectancy.
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OCCUPATIONAL APPLICATIONSAssessing workers' strength capacities is a common practice prior to return to work following injury or illness, or assessing capabilities for strenuous jobs. Because it requires 50% or more of maximum strength capacity, hip abductor muscle strength is a strong predictor of both middle- and older-aged individuals' ability to reliably balance on one leg and of their risk of falls. Our results suggest subjects were able to augment their hip abductor moment during unipedal weight stance gluteus maximus activity.

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Cross-Validation of the Financial Exploitation Vulnerability Scale.

Clin Gerontol

October 2024

Institute of Gerontology, Wayne State University, Detroit, Michigan, USA.

Objectives: The present study is a cross-validation of the Financial Exploitation Vulnerability Scale (FEVS), a measure of contextual risk for financial exploitation.

Methods: The sample was drawn from both the community and the SAFE program, a service for older adults who have been financially scammed. FEVS was administered within a larger assessment battery.

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Detailed Analysis of Responses from Older Adults through Natural Speech: Comparison of Questions by AI Agents and Humans.

Int J Environ Res Public Health

September 2024

Simulation of Complex Systems Lab, Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 277-8563, Japan.

In recent years, an increasing number of studies have begun to use conversational data in spontaneous speech to estimate cognitive function in older people. The providers of spontaneous speech with older people used to be physicians and licensed psychologists, but it is now possible to have conversations with fully automatic AI agents. However, it has not yet been clarified what differences exist in conversational communication with older people when the examiner is either a human or an AI agent.

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Estimation of the Cognitive Functioning of the Elderly by AI Agents: A Comparative Analysis of the Effects of the Psychological Burden of Intervention.

Healthcare (Basel)

September 2024

Simulation of Complex Systems Laboratory, Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 277-8563, Japan.

In recent years, an increasing number of studies have begun to use conversational data in spontaneous speech to estimate cognitive function in older people. The targets of spontaneous speech with older people used to be physicians and licensed psychologists, but it is now possible to have conversations with fully automatic AI agents. However, it has not yet been clarified what difference there is in conversational communication with older people when the examiner is a human or an AI agent.

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Paid Employment and Mental Health in 65-74-Year-Olds: Analysis of National Data From 2000, 2007 and 2014.

Int J Geriatr Psychiatry

October 2024

Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.

Introduction: Employment rates for people aged 65 and over have been changing rapidly in many countries, but little is known about associations of employment status with mental health status and their stability over time. We therefore investigated mental health associations with employment status in 65-74-year-olds in three national samples.

Methods: The data for these analyses were drawn from three national surveys of psychiatric morbidity among adults in England living in private households carried out in 2000, 2007, and 2014.

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Objective: The purpose of this study was to validate the concordance of visual ratings of [18F] flutemetamol amyloid positron emission tomography (PET) images and to investigate the correlation between the agreement of each rater and the Centiloid (CL) scale.

Methods: A total of 192 participants, clinically classified as cognitively normal (CN) (n = 59), mild cognitive impairment (MCI) (n = 65), Alzheimer's disease (AD) (n = 55), or non-AD dementia (n = 13), participated in this study. Three experts conducted visual ratings of the amyloid PET images for all 192 patients, assigning a confidence level to each rating on a three-point scale (certain, probable, or neither).

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Objectives: Identify which NIH Toolbox Cognition Battery (NIHTB-CB) subtest(s) best differentiate healthy controls (HC) from those with amnestic mild cognitive impairment (aMCI) and compare the discriminant accuracy between a model using a priori "Norm Adjusted" scores versus "Unadjusted" standard scores with age, sex, race/ethnicity, and education controlled for within the model. Racial differences were also examined.

Methods: Participants were Black/African American (B/AA) and White consensus-confirmed (HC = 96; aMCI = 62) adults 60-85 years old that completed the NIHTB-CB for tablet.

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Article Synopsis
  • - The study investigates the role of oxidized LDL particles (LDLox) in assessing cardiometabolic risk, focusing on their relationship with other biomarkers and risk factors using data from 1089 participants aged 40-75.
  • - Researchers performed correlation analyses and developed machine learning models to predict risks associated with high blood pressure and obesity, achieving promising validation scores that highlighted the significance of LDLox.
  • - The findings provide new insights into how LDL oxidation may interact with aging markers to influence cardiometabolic health, suggesting that further research with larger groups could enhance clinical assessment tools.
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  • Researchers focused on identifying new serum extracellular vesicle (EV)-based biomarkers for detecting resistance to androgen receptor signaling inhibitors (ARSIs) in metastatic prostate cancer (PC) and castration-resistant prostate cancer (CRPC).
  • They used RNA-sequencing on serum EVs from CRPC patients before and after developing ARSI-resistance to analyze changes in gene expression, particularly looking at mitochondrial oxidative phosphorylation (OXPHOS)-related genes.
  • The study found that SDHB mRNA levels were significantly higher in EVs from ARSI-resistant CRPC patients, suggesting that EV-SDHB could serve as a novel biomarker for early diagnosis of ARSI-resistance.
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  • A Japanese cross-sectional study explored the link between tongue pressure (TP) and mild cognitive impairment (MCI) in adults aged 36-84 years, involving 1019 participants.
  • The study found that 45.3% of participants had MCI, with higher TP levels correlating to a lower prevalence of MCI in women, indicating a significant dose-response relationship.
  • No similar association was found between TP and MCI prevalence in men, suggesting that higher TP may uniquely benefit cognitive function in middle-aged and older women.
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Metformin decelerates aging clock in male monkeys.

Cell

October 2024

Key Laboratory of Organ Regeneration and Reconstruction, State Key Laboratory of Membrane Biology, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem Cell and Regeneration, CAS, Beijing 100101, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China; National Clinical Research Center for Geriatric Disorders, Aging Translational Medicine Center, International Center for Aging and Cancer, Xuanwu Hospital Capital Medical University, Beijing 100053, China; University of Chinese Academy of Sciences, Beijing 100049, China; Aging Biomarker Consortium (ABC), Beijing 100101, China. Electronic address:

Article Synopsis
  • * Metformin was found to significantly slow aging markers, resulting in about a 6-year regression in brain aging and improved cognitive function.
  • * The research suggests that metformin's benefits on brain health are partly due to the activation of Nrf2, which has anti-oxidative properties, indicating potential for human aging interventions.
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  • - MOGAD (Myelin oligodendrocyte glycoprotein antibody-associated disease) shows a variety of clinical symptoms, one being encephalitis, along with diverse MRI imaging results, including a rare perivascular pattern recently reported.
  • - The study presents two cases where patients with MOGAD had similar MRI features and underwent brain biopsies, revealing signs of demyelination and inflammation, which were consistent with acute disseminated encephalomyelitis (ADEM).
  • - The findings indicate significant differences in axonal damage and cerebral atrophy between the two cases, suggesting the importance of brain biopsy for diagnosis and prognosis in MOGAD, even when imaging results are atypical.
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Neuroinflammation, cerebrovascular dysfunction and diurnal cortisol biomarkers in a memory clinic cohort: Findings from the Co-STAR study.

Transl Psychiatry

September 2024

Division of Clinical Geriatrics, Center for Alzheimer Research, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden.

Cortisol dysregulation, neuroinflammation, and cerebrovascular dysfunction are biological processes that have been separately shown to be affected in Alzheimer's disease (AD). Here, we aimed to identify biomarker signatures reflecting these pathways in 108 memory clinic patients with subjective cognitive decline (SCD, N = 40), mild cognitive impairment (MCI, N = 39), and AD (N = 29). Participants were from the well-characterized Cortisol and Stress in Alzheimer's Disease (Co-STAR) cohort, recruited at Karolinska University Hospital.

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Introduction: The potential utility of subjective cognitive decline (SCD) as an early risk marker of Alzheimer's disease and related dementias is under consideration. We examined associations between SCD and cognitive change among middle-aged and older Hispanic/Latino adults living in the United States.

Methods: The short-form Everyday Cognition Scale (ECog-12) was assessed to generate global, executive function, and memory-related SCD scores.

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Aim: In Japan's public health system, dentists can assess and intervene in oral hypofunction cases. However, the associations between oral hypofunction and health outcomes and costs remain unclear. This study aimed to identify these associations.

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Many coronavirus disease 2019 (COVID-19) positive individuals exhibit abnormal electroencephalographic (EEG) activity reflecting "brain fog" and mild cognitive impairments even months after the acute phase of infection. Resting-state EEG abnormalities include EEG slowing (reduced alpha rhythm; increased slow waves) and epileptiform activity. An expert panel conducted a systematic review to present compelling evidence that cognitive deficits due to COVID-19 and to Alzheimer's disease and related dementia (ADRD) are driven by overlapping pathologies and neurophysiological abnormalities.

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Enhancing dementia risk screening with GAN-synthesized periodontal examination and general blood test data.

Front Neurol

August 2024

Department of Human and Engineered Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan.

Article Synopsis
  • The study examines the use of data augmentation techniques to enhance the prediction of dementia risk through machine learning models, specifically focusing on easily obtainable blood test results and periodontal examination data.
  • It employs advanced techniques like SMOGN, GAN, and CTGAN on datasets comprising cognitive assessments, demographics, and test results, utilizing various machine learning models for evaluation.
  • Findings indicate that while normal GANs improve data diversity, CTGANs better preserve data structure, significantly enhancing the performance of linear regression models when applied to synthesized data.
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