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Hunter CJ, Tulunay-Ugur OE. Dysphagia in the Aging Population. Otolaryngol Clin North Am 2024; 57:685-693. [PMID: 38806319 DOI: 10.1016/j.otc.2024.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Older adults are projected to outnumber children aged under 18 years for the first time in United States history by 2034, according to Census Bureau projections. This will lead to significant increase in age-related disorders. One of the most important disorders that will increase in prevalence is dysphagia, as it leads to malnutrition, dehydration, aspiration pneumonia, and death. In this article, the physiology of dysphagia in the elderly, as well as the management options is discussed.
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Affiliation(s)
- Courtney J Hunter
- Department of Otolaryngology-Head and Neck Surgery, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Slot 543, Little Rock, AR 72205, USA
| | - Ozlem E Tulunay-Ugur
- Division of Laryngology, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Slot 543, Little Rock, AR 72205, USA.
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2
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Cheung ESL, Zhang Z. Moderating Role of Neighborhood Environment in the Associations Between Hearing Loss and Cognitive Challenges Among Older Adults: Evidence From US National Study. Res Aging 2024; 46:400-413. [PMID: 38361482 DOI: 10.1177/01640275241234372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
This study examined the associations between hearing loss and cognitive challenges among community-dwelling older adults and whether neighborhood characteristics (physical disorder and low social cohesion) moderated the associations. Cross-sectional national data from Round 11 of the National Health and Aging Trends Study were adopted (N = 2,515). Multinomial logistic regressions were used to examine associations among variables and interactive analyses were conducted to examine moderating effects. Results indicated significant relationships between the experience of hearing loss and possible dementia and between severe or profound hearing loss and probable dementia. Interactive models suggested that residing in neighborhoods with physical disorder and low social cohesion were negatively associated with possible dementia among older adults with moderate and severe or profound hearing loss, respectively, compared to those without hearing loss. Findings underscore the necessity of environmental and social interventions to enhance cognitive health among older adults with varying degrees of hearing challenges.
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Affiliation(s)
| | - Zhe Zhang
- Teachers College, Columbia University, New York, NY, USA
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Ch'en P, Patel PB, Ramirez M. Caregivers' and Health Care Providers' Cultural Perceptions of and Experiences With Latino Patients With Dementia. Neurol Clin Pract 2024; 14:e200307. [PMID: 38855714 PMCID: PMC11157425 DOI: 10.1212/cpj.0000000000200307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/09/2024] [Indexed: 06/11/2024]
Abstract
Background and Objectives The prevalence of Alzheimer dementia in the US Latino population in 2060 is projected to increase 7-fold, the highest among any other major ethnic/racial group. One vital question is how clinicians can tailor their care for Latinos. Given this rapidly growing prevalence, we sought to characterize the experiences and perspectives of Latino caregivers by analyzing interview data from both caregivers and experienced providers that specifically work with Latino populations. In this study, we present 6 themes that emerged along with tailored solutions and recommendations to implement in clinical practice to improve patient care and outcomes. Methods This qualitative analysis uses coded interview transcripts from 2 studies, one in Southern California and another in Washington State. The combined dataset included interview transcripts with 51 caregivers and 20 providers. A thematic analysis was performed on the coded interview transcripts to identify themes related to tailoring care for Latino populations. Results Six themes emerged from the analysis: (1) multiple caregivers involved within a family-oriented Latino household; (2) need for encouragement in advocating for loved ones in the clinician's office; (3) challenges in reaching and communicating with the Latino population; (4) increasing use of technology by patients and caregivers despite some challenges; (5) stigma associated with mental health issues within the Latino culture; and (6) limited understating of dementia leading to a delay in care in the Latino population. Discussion Many Latino households have a strong sense of familism, thus care coordination with multiple caregivers is essential to high-quality care. Improved shared decision-making strategies tailored to a population that may be culturally deferential to authoritative figures can aid caregiver understanding and engagement with the provider. These interactions can often be more authentic when communicating with a member of the care team in Spanish. A cultural stigma of mental illness was also identified; clinicians can work toward normalizing discussion of mental illness and its treatment by openly discussing mental health during annual visits. Through these themes, we demonstrate some of the strengths and weaknesses of the current care delivery model within a sociocultural context to improve patient care and outcomes for Latino families caring for individuals living with dementia.
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Affiliation(s)
- Peter Ch'en
- Albert Einstein College of Medicine (PC), Bronx, NY; Department of Neurology (PBP); and Department of Health Systems and Population Health (MR), University of Washington, Seattle
| | - Payal B Patel
- Albert Einstein College of Medicine (PC), Bronx, NY; Department of Neurology (PBP); and Department of Health Systems and Population Health (MR), University of Washington, Seattle
| | - Magaly Ramirez
- Albert Einstein College of Medicine (PC), Bronx, NY; Department of Neurology (PBP); and Department of Health Systems and Population Health (MR), University of Washington, Seattle
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Lee DR, Romero T, Serrano KS, Panlilio M, Rojas-Parra A, Matsuno L, Mendez MF, Willinger C, Reuben DB. Demographics, Symptoms, Psychotropic Use, and Caregiver Distress in Patients With Early vs Late Onset Dementia. Am J Geriatr Psychiatry 2024; 32:944-954. [PMID: 38600005 DOI: 10.1016/j.jagp.2024.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Understanding experiences and challenges faced by persons living with Early-Onset Dementia (EOD) compared to individuals diagnosed with Late-Onset Dementia (LOD) is important for the development of targeted interventions. OBJECTIVE Describe differences in sociodemographic, neuropsychiatric behavioral symptoms, caregiver characteristics, and psychotropic use. DESIGN, SETTING, PARTICIPANTS Cross-sectional, retrospective study including 908 UCLA Alzheimer's Dementia Care Program participants (177 with EOD and 731 with LOD). MEASUREMENTS Onset of dementia was determined using age at program enrollment, with EOD defined as age <65 years and LOD defined as age >80 years. Sociodemographic and clinical characteristics were measured once at enrollment. Behavioral symptoms were measured using the Neuropsychiatric Inventory Questionnaire (NPI-Q) severity score and caregiver distress was measured using the NPI-Q distress score. Medications included antipsychotic, antidepressant, benzodiazepines and other hypnotics, antiepileptics, and dementia medications. RESULTS EOD compared to LOD participants were more likely men, college graduates, married, live alone, and have fewer comorbidities. EOD caregivers were more often spouses (56% vs 26%, p <0.01), whereas LOD caregivers were more often children (57% vs 10%, p <0.01). EOD was associated with lower odds of being above the median (worse) NPI-Q severity (adjusted odds ratio [aOR], 0.58; 95% CI 0.35-0.96) and NPI-Q distress scores (aOR, 0.53; 95% CI 0.31-0.88). Psychotropic use did not differ between groups though symptoms were greater for LOD compared to EOD. CONCLUSION Persons with EOD compared to LOD had sociodemographic differences, less health conditions, and fewer neuropsychiatric symptoms. Future policies could prioritize counseling for EOD patients and families, along with programs to support spousal caregivers of persons with EOD.
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Affiliation(s)
- David R Lee
- Multicampus Program in Geriatric Medicine and Gerontology, Division of Geriatrics, David Geffen School of Medicine at UCLA, University of California (DRL, KS, DBR), Los Angeles, CA.
| | - Tahmineh Romero
- Department of Medicine Statistics Core (TR), David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Katherine Sy Serrano
- Multicampus Program in Geriatric Medicine and Gerontology, Division of Geriatrics, David Geffen School of Medicine at UCLA, University of California (DRL, KS, DBR), Los Angeles, CA
| | - Michelle Panlilio
- Department of Medicine (MP, LM, CW), David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Abel Rojas-Parra
- Department of Geriatric Medicine (ARP), Clinica Sierra Vista, Bakersfield, CA
| | - Lauren Matsuno
- Department of Medicine (MP, LM, CW), David Geffen School of Medicine, University of California, Los Angeles, CA
| | - Mario F Mendez
- Department of Neurology, Department of Psychiatry and Behavioral Sciences (MFM), David Geffen School of Medicine, University of California Los Angeles (UCLA), Neurology Service, Neurobehavior Unit, V.A. Greater Los Angeles Healthcare System, Los Angeles, CA
| | - Christine Willinger
- Department of Medicine (MP, LM, CW), David Geffen School of Medicine, University of California, Los Angeles, CA
| | - David B Reuben
- Multicampus Program in Geriatric Medicine and Gerontology, Division of Geriatrics, David Geffen School of Medicine at UCLA, University of California (DRL, KS, DBR), Los Angeles, CA
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O'Conor R, Russell AM, Pack A, Oladejo D, Filec S, Rogalski E, Morhardt D, Lindquist LA, Wolf MS. Managing medications among individuals with mild cognitive impairment and dementia: Patient-caregiver perspectives. J Am Geriatr Soc 2024. [PMID: 39007450 DOI: 10.1111/jgs.19065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/05/2024] [Accepted: 06/13/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND With changing cognitive abilities, individuals with mild cognitive impairment (MCI) and dementia face challenges in successfully managing multidrug regimens. We sought to understand how individuals with MCI or dementia and their family caregivers manage multidrug regimens and better understand patient-to-caregiver transitions in medication management responsibilities. METHODS We conducted qualitative interviews among patient-caregiver dyads. Eligibility included: patients with a diagnosis of MCI, mild or moderate dementia, managing ≥3 chronic conditions, ≥5 prescription medications, who also had a family caregiver ≥18 years old. Semi-structured interview guides, informed by the Medication Self-Management model, ascertained roles and responsibilities for medication management and patient-to-caregiver transitions in medication responsibilities. RESULTS We interviewed 32 patient-caregiver dyads. Older adults and caregivers favored older adult autonomy in medication management, and individuals with MCI and mild dementia largely managed their medications independently using multiple strategies (e.g., establishing daily routines, using pillboxes). Among individuals with moderate dementia, caregivers assumed all medication-related responsibilities except when living separately. In those scenarios, caregivers set up organizers and made reminder calls, but did not observe family members taking medications. Patient-to-caregiver transitions in medication responsibilities frequently occurred after caregivers observed older adults making errors with medications. As caregivers sought to assume greater responsibilities with family members' medicines, they faced multiple barriers. Most barriers were dyadic; they affected both the older adult and the caregiver and/or the relationship. Some barriers were specific to caregivers; these included caregivers' competing responsibilities or inaccurate perceptions of dementia, while other barriers were related to the healthcare system. CONCLUSIONS To ease medication management transitions, balance must be sought between preservation of older adult autonomy and early family caregiver involvement. Clinicians should work to initiate conversations with family caregivers and individuals living with MCI or dementia about transitioning medication responsibilities as memory loss progresses, simplify regimens, and deprescribe, as appropriate.
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Affiliation(s)
- Rachel O'Conor
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
| | - Andrea M Russell
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
| | - Allison Pack
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
| | - Dianne Oladejo
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
| | - Sarah Filec
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
| | - Emily Rogalski
- Healthy Aging & Alzheimer's Research Care (HAARC) Center, The University of Chicago, Chicago, Illinois, USA
| | - Darby Morhardt
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Northwestern University, Chicago, Illinois, USA
| | - Lee A Lindquist
- Division of Geriatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Michael S Wolf
- Division of General Internal Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
- Center for Applied Health Research on Aging, Institute for Public Health and Medicine, Northwestern University, Chicago, Illinois, USA
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Rojas-Saunero LP, Hughes TM, Mayeda ER, Jimenez MP. Racial and ethnic differences in the risk of dementia diagnosis under hypothetical blood pressure-lowering interventions: The Multi-Ethnic Study of Atherosclerosis. Alzheimers Dement 2024. [PMID: 38984649 DOI: 10.1002/alz.13894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 04/08/2024] [Accepted: 04/22/2024] [Indexed: 07/11/2024]
Abstract
INTRODUCTION Substantial racial and ethnic disparities in hypertension and dementia exist in the United States. We evaluated the effect of maintaining systolic blood pressure (SBP) below clinical thresholds on dementia incidence. METHODS We included 6806 Multi-Ethnic Study of Atherosclerosis participants (44 to 84 years old). We implemented the parametric g-formula to simulate the hypothetical interventions to reduce SBP below 120 and 140 mmHg over time, accounting for time-varying confounding. We estimated risk ratios (RRs) and risk differences for dementia incidence at 19 years. RESULTS The RRs (95% confidence intervals [CIs]) comparing an intervention reducing SBP below 120 mmHg to no intervention were 0.93 (0.87 to 0.99) for total sample, 0.95 (0.88 to 1.02) for White, 0.90 (0.79 to 1.02) for Black, 0.90 (0.78 to 1.05) for Latino, and 1.16 (0.83 to 1.55) for Chinese American participants. Results for lowering SBP below 140 mmHg and with death as competing event were attenuated. DISCUSSION The reduction of SBP below 120 mmHg over time has modest effects on reducing dementia incidence. More work is needed to understand the heterogeneity across racial and ethnic groups. HIGHLIGHTS There is a potential beneficial effect in lowering SBP to reduce the risk of dementia, which may vary by race and ethnicity. The percentage of participants who would need intervention on blood pressure to meet clinical thresholds is greater for Black and Latino communities. Results are sensitive to the way that death is specified in the research question and analysis.
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Affiliation(s)
- L Paloma Rojas-Saunero
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
| | - Timothy M Hughes
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Elizabeth Rose Mayeda
- Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA
| | - Marcia Pescador Jimenez
- Department of Epidemiology, Boston University School of Public Health, Boston, Massachusetts, USA
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Chen L, Liu X, Zheng J, Li G, Yang B, He A, Liu H, Liang Y, Wang WA, Du J. A randomized, double-blind, placebo-controlled study of Cistanche tubulosa and Ginkgo biloba extracts for the improvement of cognitive function in middle-aged and elderly people. Phytother Res 2024. [PMID: 38972848 DOI: 10.1002/ptr.8275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/28/2024] [Accepted: 06/07/2024] [Indexed: 07/09/2024]
Abstract
Mild cognitive impairment poses an increasing challenge to middle-aged and elderly populations. Traditional Chinese medicinal herbs like Cistanche tubulosa and Ginkgo biloba (CG) have been proposed as potential agents to improve cognitive and memory functions. A randomized controlled trial involving 100 Chinese middle-aged and elderly participants was conducted to investigate the potential synergistic effects of CG on cognitive function in individuals at risk of neurodegenerative diseases. Over 90 days, both CG group and placebo group received two tablets daily, with each pair of CG tablets containing 72 mg echinacoside and 27 mg flavonol glycosides. Cognitive functions were assessed using multiple scales and blood biomarkers were determined at baseline, Day 45, and Day 90. The CG group exhibited significant improvements in the scores of Mini-Mental State Examination (26.5 at baseline vs. 27.1 at Day 90, p < 0.001), Montreal Cognitive Assessment (23.4 at baseline vs. 25.3 at Day 90, p < 0.001), and World Health Organization Quality of Life (81.6 at baseline vs. 84.2 at Day 90, p < 0.001), all surpassing scores in placebo group. Notably, both the Cognitrax matrix test and the Wechsler Memory Scale-Revised demonstrated enhanced memory functions, including long-term and delayed memory, after CG intervention. Moreover, cognitive-related blood biomarkers, including total tau, pT181, pS199, pT231, pS396, and thyroid-stimulating hormone, significantly decreased, whereas triiodothyronine and free triiodothyronine significantly increased. No treatment-related adverse events were reported, and routine blood and urine tests remained stable. These findings indicated that CG supplementation could potentially serve as an effective supplementary solution for enhancing cognitive and memory functions.
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Affiliation(s)
- Liang Chen
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | - Xin Liu
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jianheng Zheng
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | - Gang Li
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | - Binrui Yang
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | - Anli He
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | - Hongyue Liu
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
| | | | - Wen' An Wang
- Department of Neurology, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Du
- Amway (Shanghai) Innovation & Science Co., Ltd., Shanghai, China
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Xiong C, Luo J, Wolk DA, Shaw LM, Roberson ED, Murchison CF, Henson RL, Benzinger TLS, Bui Q, Agboola F, Grant E, Gremminger EN, Moulder KL, Geldmacher DS, Clay OJ, Babulal G, Cruchaga C, Holtzman DM, Bateman RJ, Morris JC, Schindler SE. Baseline levels and longitudinal changes in plasma Aβ42/40 among Black and white individuals. Nat Commun 2024; 15:5539. [PMID: 38956096 PMCID: PMC11219932 DOI: 10.1038/s41467-024-49859-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 06/21/2024] [Indexed: 07/04/2024] Open
Abstract
Blood-based biomarkers of Alzheimer disease (AD) may facilitate testing of historically under-represented groups. The Study of Race to Understand Alzheimer Biomarkers (SORTOUT-AB) is a multi-center longitudinal study to compare AD biomarkers in participants who identify their race as either Black or white. Plasma samples from 324 Black and 1,547 white participants underwent analysis with C2N Diagnostics' PrecivityAD test for Aβ42 and Aβ40. Compared to white individuals, Black individuals had higher average plasma Aβ42/40 levels at baseline, consistent with a lower average level of amyloid pathology. Interestingly, this difference resulted from lower average levels of plasma Aβ40 in Black participants. Despite the differences, Black and white individuals had similar longitudinal rates of change in Aβ42/40, consistent with a similar rate of amyloid accumulation. Our results agree with multiple recent studies demonstrating a lower prevalence of amyloid pathology in Black individuals, and additionally suggest that amyloid accumulates consistently across both groups.
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Affiliation(s)
- Chengjie Xiong
- Division of Biostatistics, Washington University, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jingqin Luo
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Siteman Cancer Center Biostatistics and Qualitative Research Shared Resource, Washington University School of Medicine, St. Louis, MO, USA
| | - David A Wolk
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Leslie M Shaw
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Erik D Roberson
- Alzheimer's Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Charles F Murchison
- Alzheimer's Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rachel L Henson
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Tammie L S Benzinger
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University, St. Louis, MO, USA
| | - Quoc Bui
- Division of Biostatistics, Washington University, St. Louis, MO, USA
| | - Folasade Agboola
- Division of Biostatistics, Washington University, St. Louis, MO, USA
| | - Elizabeth Grant
- Division of Biostatistics, Washington University, St. Louis, MO, USA
| | | | - Krista L Moulder
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - David S Geldmacher
- Alzheimer's Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Olivio J Clay
- Alzheimer's Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Psychology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ganesh Babulal
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Carlos Cruchaga
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - David M Holtzman
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Randall J Bateman
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - John C Morris
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Suzanne E Schindler
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
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Llibre-Guerra JJ, Jiang M, Acosta I, Sosa AL, Acosta D, Jimenez-Velasquez IZ, Guerra M, Salas A, Rodriguez Salgado AM, Llibre-Guerra JC, Sánchez ND, Prina M, Renton A, Albanese E, Yokoyama JS, Llibre Rodriguez JJ. Social determinants of health but not global genetic ancestry predict dementia prevalence in Latin America. Alzheimers Dement 2024; 20:4828-4840. [PMID: 38837526 DOI: 10.1002/alz.14041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 06/07/2024]
Abstract
INTRODUCTION Leveraging the nonmonolithic structure of Latin America, which represents a large variability in social determinants of health (SDoH) and high levels of genetic admixture, we aim to evaluate the relative contributions of SDoH and genetic ancestry in predicting dementia prevalence in Latin American populations. METHODS Community-dwelling participants aged 65 and older (N = 3808) from Cuba, Dominican Republic, Mexico, and Peru completed the 10/66 protocol assessments. Dementia was diagnosed using the cross-culturally validated 10/66 algorithm. Multivariate linear regression models adjusted for SDoH were used in the main analysis. This study used cross-sectional data from the 1066 population-based study. RESULTS Individuals with higher proportions of Native American (>70%) and African American (>70%) ancestry were more likely to exhibit factors contributing to worse SDoH, such as lower educational levels (p < 0.001), lower socioeconomic status (p < 0.001), and higher frequency of vascular risk factors (p < 0.001). After adjusting for measures of SDoH, there was no association between ancestry proportion and dementia probability, and ancestry proportions no longer significantly accounted for the variance in cognitive performance (African predominant p = 0.31 [-0.19, 0.59] and Native predominant p = 0.74 [-0.24, 0.33]). DISCUSSION The findings suggest that social and environmental factors play a more crucial role than genetic ancestry in predicting dementia prevalence in Latin American populations. This underscores the need for public health strategies and policies that address these social determinants to effectively reduce dementia risk in these communities. HIGHLIGHTS Countries in Latin America express a large variability in social determinants of health and levels of admixture. After adjustment for downstream societal factors linked to SDoH, genetic ancestry shows no link to dementia. Population ancestry profiles alone do not influence cognitive performance. SDoH are key drivers of racial disparities in dementia and cognitive performance.
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Affiliation(s)
- Jorge J Llibre-Guerra
- Department of Neurology, Washington University School of Medicine in St. Louis, St Louis, Missouri, USA
| | - Miao Jiang
- Institute of Public Health, Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland
| | - Isaac Acosta
- Laboratory of the Dementias, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
- National Autonomous University of Mexico, Mexico City, Mexico
| | - Ana Luisa Sosa
- Laboratory of the Dementias, National Institute of Neurology and Neurosurgery, Mexico City, Mexico
- National Autonomous University of Mexico, Mexico City, Mexico
| | - Daisy Acosta
- Internal Medicine Department, Universidad Nacional Pedro Henriquez Ureña (UNPHU), Geriatric Section, Santo Domingo, Dominican Republic
| | - Ivonne Z Jimenez-Velasquez
- Internal Medicine Department, Geriatrics Program, School of Medicine, Medical Sciences Campus, University of Puerto Rico, San Juan, Puerto Rico, USA
| | - Mariella Guerra
- Instituto de la Memoria Depresion y Enfermedades de Riesgo IMEDER, Lima, Perú
| | - Aquiles Salas
- Medicine Department, Caracas University Hospital, Faculty of Medicine, Universidad Central de Venezuela, Caracas, Venezuela
| | - Ana M Rodriguez Salgado
- Global Brain Health Institute, University of San Francisco California, San Francisco, California, USA
| | | | - Nedelys Díaz Sánchez
- Dementia Research Unit, Facultad de Medicina Finlay-Albarran, Medical University of Havana, Havana, Cuba
| | - Matthew Prina
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Alan Renton
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Emiliano Albanese
- Institute of Public Health, Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland
| | - Jennifer S Yokoyama
- Department of Neurology, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, California, USA
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Juan J Llibre Rodriguez
- Dementia Research Unit, Facultad de Medicina Finlay-Albarran, Medical University of Havana, Havana, Cuba
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10
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Nichols E, Gross AL, Zhang YS, Meijer E, Hayat S, Steptoe A, Langa KM, Lee J. Considerations for the use of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) in cross-country comparisons of cognitive aging and dementia. Alzheimers Dement 2024; 20:4635-4648. [PMID: 38805356 DOI: 10.1002/alz.13895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 05/30/2024]
Abstract
INTRODUCTION Informant reports are a critical component of dementia diagnoses, but the comparability of informant reports across countries is not well understood. METHODS We compared the performance of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) using population-representative surveys in the United States (N = 3183), England (N = 1050), and India (N = 4047). RESULTS Analyses of regression splines and comparisons of model fit showed strong associations between IQCODE and objective cognition at low cognitive functioning in the United States and England; in India, the association was weaker but consistent over the range of cognition. Associations between IQCODE score and informant generation (analysis of variance [ANOVA] p = 0.001), caregiver status (p < 0.001), and years known by the informant (p = 0.015) were different across countries after adjusting for objective cognition. DISCUSSION In India, the IQCODE was less sensitive to impairments at the lowest levels of cognitive functioning. Country-specific adjustments to IQCODE scoring based on informant characteristics may improve cross-national comparisons. HIGHLIGHTS Associations between IQCODE and cognitive testing were similar in the United States and England but differed in India. In India, the IQCODE may be less sensitive to impairments among those with low cognition and no education. Informant characteristics may differentially impact informant reports of decline across countries. Adjustments or culturally sensitive adaptations may improve cross-national comparability.
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Affiliation(s)
- Emma Nichols
- Center for Economic and Social Research, University of Southern California, Los Angeles, California, USA
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA
| | - Alden L Gross
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health and Johns Hopkins University Center on Aging and Health, Baltimore, Maryland, USA
| | - Yuan S Zhang
- Robert N. Butler Columbia Aging Center, Department of Sociomedical Sciences, Columbia University Mailman School of Public Health, New York, New York, USA
| | - Erik Meijer
- Center for Economic and Social Research, University of Southern California, Los Angeles, California, USA
| | - Shabina Hayat
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Kenneth M Langa
- Department of Internal Medicine and Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Jinkook Lee
- Center for Economic and Social Research, University of Southern California, Los Angeles, California, USA
- Department of Economics, University of Southern California, Los Angeles, California, USA
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11
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Xu S, Fouladi‐Nashta N, Chen Y, Zissimopoulos J. Dementia severity at incident diagnosis in a population representative sample of older Americans. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2024; 10:e12491. [PMID: 38988415 PMCID: PMC11231736 DOI: 10.1002/trc2.12491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION We provide the first analysis of distribution of dementia severity at incident diagnosis for a population representative sample of older Americans. METHODS Using data from the Aging, Demographics, and Memory Study (ADAMS), the Health Retirement Study (HRS), and traditional Medicare claims, we estimated the Clinical Dementia Rating Scale for ADAMS respondents and applied parameter estimates to predict dementia severity for HRS respondents with claims-based incident dementia diagnosis. RESULTS Seventy percent of older adults received a dementia diagnosis of mild cognitive impairment or mild dementia (early stages). Fewer individuals were diagnosed at early stages in years 2000 to 2008 (65%) compared to years 2009 to 2016 (76%). About 72% of non-Hispanic white persons were diagnosed at early stages, compared to 63% non-Hispanic black and 59% Hispanic persons. More males than females were diagnosed at early stages (75% vs 67%). DISCUSSION These data linkages allow population surveillance of early and equitable dementia detection in the older US population to assess clinical and policy levers to improve detection. Highlights For the US population 70 and older, 30% were diagnosed with dementia at a moderate or severe stage.Fewer were diagnosed at early stages in years 2000 to 2008 compared to 2009 to 2016 (65% vs 76%).A total of 72% of white persons were diagnosed at early stages, compared to 63% black and 59% Hispanic persons.More males than females were diagnosed at early stages (75% vs 67%).High wealth and education level were associated with diagnosis at early stages disease.
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Affiliation(s)
- Shengjia Xu
- Price School of Public PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Niloofar Fouladi‐Nashta
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
| | - Yi Chen
- Rush Alzheimer's Disease CenterChicagoIllinoisUSA
| | - Julie Zissimopoulos
- Price School of Public PolicyUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
- Leonard D. Schaeffer Center for Health Policy & EconomicsUniversity of Southern CaliforniaLos AngelesCaliforniaUSA
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12
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Zamboni G, Maramotti R, Salemme S, Tondelli M, Adani G, Vinceti G, Carbone C, Filippini T, Vinceti M, Pagnoni G, Chiari A. Age-specific prevalence of the different clinical presentations of AD and FTD in young-onset dementia. J Neurol 2024; 271:4326-4335. [PMID: 38643445 PMCID: PMC11233291 DOI: 10.1007/s00415-024-12364-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/22/2024]
Abstract
BACKGROUND Studies have shown that the prevalence of all-variants Alzheimer's disease (AD) and frontotemporal dementia (FTD) both increase with age, even before the age of 65. However, it is not known whether their different clinical presentations all increase in prevalence with age in the same way. METHODS We studied the prevalence of the different clinical presentations of young-onset AD and FTD by 5-year age groups in a population-based study identifying all dementia patients with a diagnosis of AD and FTD and symptoms onset before age 65 in the Modena province, Italy. By using regression models of cumulative occurrences, we also estimated age-specific prevalence and compared the growth curves of the clinical presentations. RESULTS The prevalence of all-variants AD increased with age, from 18/1,000,000 in the 40-44 age group to 1411/1,000,000 in the 60-64 age group. The prevalence of all-variants FTD also increased with age, from 18/1,000,000 to 866/1,000,000. An estimation of age-specific prevalence functions of each clinical presentation showed that atypical non-amnestic AD and aphasic FTD grew the most in early ages, followed by the behavioural variant of FTD (bvFTD). Then, around the age of 60, amnestic AD took over and its age-specific prevalence continued to increase disproportionally compared to all the other clinical variants of AD and FTD, which, instead, started to decrease in prevalence. CONCLUSIONS Amnestic AD is the clinical presentation that increases the most with advancing age, followed by bvFTD, suggesting that there is a differential vulnerability to the effect of ageing within the same neurodegenerative disease.
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Affiliation(s)
- Giovanna Zamboni
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy.
- Neurologia, Azienda Ospedaliero Universitaria di Modena, Modena, Italy.
| | - Riccardo Maramotti
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
- Dipartimento di Scienze Fisiche, Informatiche e Matematiche, Università di Modena e Reggio Emilia, Modena, Italy
| | - Simone Salemme
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Manuela Tondelli
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
- Neurologia, Azienda Ospedaliero Universitaria di Modena, Modena, Italy
| | - Giorgia Adani
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Giulia Vinceti
- Neurologia, Azienda Ospedaliero Universitaria di Modena, Modena, Italy
| | - Chiara Carbone
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Tommaso Filippini
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Marco Vinceti
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Giuseppe Pagnoni
- Dipartimento di Scienze Biomediche, Metaboliche e Neuroscienze, Università di Modena e Reggio Emilia, Via Giardini 1355, 41126, Modena, Italy
| | - Annalisa Chiari
- Neurologia, Azienda Ospedaliero Universitaria di Modena, Modena, Italy
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Nketsiah E, Zubatsky M, Berg-Weger M. Incorporating Spirituality into Cognitive Stimulation Therapy Groups for Persons with Dementia: An Exploratory Study. JOURNAL OF GERONTOLOGICAL SOCIAL WORK 2024:1-14. [PMID: 38949381 DOI: 10.1080/01634372.2024.2372113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 06/20/2024] [Indexed: 07/02/2024]
Abstract
Cognitive Stimulation Therapy (CST) is an evidence-based, non-pharmacological intervention for older adults with mild to moderate dementia. While CST has been adapted in various ways, this study explored the impact of adding a spiritual dimension to CST. Participants (N = 34) were divided into spiritual and traditional CST groups based on their residence. After a 14-session intervention involving interactive conversations, the spiritual CST group showed significantly lower depression scores (M = 2.7) compared to traditional CST (M = 6.5). With the global increase in dementia-related disorders, non-pharmacological interventions like CST offer crucial support for addressing memory loss. Social workers are uniquely positioned to deliver CST to diverse populations who value spirituality or faith in their daily lives.
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Affiliation(s)
- Ebow Nketsiah
- Saint Louis School of University, Social Work, St. Louis, Missouri, USA
| | - Max Zubatsky
- Saint Louis School of University, Medicine, St. Louis, Missouri, USA
| | - Marla Berg-Weger
- Saint Louis School of University, Social Work, St. Louis, Missouri, USA
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14
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Neale ZE, Fonda JR, Miller MW, Wolf EJ, Zhang R, Sherva R, Harrington KM, Merritt V, Panizzon MS, Hauger RL, Gaziano JM, Logue MW. Subjective cognitive concerns, APOE ε4, PTSD symptoms, and risk for dementia among older veterans. Alzheimers Res Ther 2024; 16:143. [PMID: 38951900 PMCID: PMC11218206 DOI: 10.1186/s13195-024-01512-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 06/20/2024] [Indexed: 07/03/2024]
Abstract
BACKGROUND Posttraumatic stress disorder (PTSD) and traumatic brain injury (TBI) are associated with self-reported problems with cognition as well as risk for Alzheimer's disease and related dementias (ADRD). Overlapping symptom profiles observed in cognitive disorders, psychiatric disorders, and environmental exposures (e.g., head injury) can complicate the detection of early signs of ADRD. The interplay between PTSD, head injury, subjective (self-reported) cognitive concerns and genetic risk for ADRD is also not well understood, particularly in diverse ancestry groups. METHODS Using data from the U.S. Department of Veterans Affairs (VA) Million Veteran Program (MVP), we examined the relationship between dementia risk factors (APOE ε4, PTSD, TBI) and subjective cognitive concerns (SCC) measured in individuals of European (n = 140,921), African (n = 15,788), and Hispanic (n = 8,064) ancestry (EA, AA, and HA, respectively). We then used data from the VA electronic medical record to perform a retrospective survival analysis evaluating PTSD, TBI, APOE ε4, and SCC and their associations with risk of conversion to ADRD in Veterans aged 65 and older. RESULTS PTSD symptoms (B = 0.50-0.52, p < 1E-250) and probable TBI (B = 0.05-0.19, p = 1.51E-07 - 0.002) were positively associated with SCC across all three ancestry groups. APOE ε4 was associated with greater SCC in EA Veterans aged 65 and older (B = 0.037, p = 1.88E-12). Results of Cox models indicated that PTSD symptoms (hazard ratio [HR] = 1.13-1.21), APOE ε4 (HR = 1.73-2.05) and SCC (HR = 1.18-1.37) were positively associated with risk for ADRD across all three ancestry groups. In the EA group, probable TBI also contributed to increased risk of ADRD (HR = 1.18). CONCLUSIONS The findings underscore the value of SCC as an indicator of ADRD risk in Veterans 65 and older when considered in conjunction with other influential genetic, clinical, and demographic risk factors.
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Affiliation(s)
- Zoe E Neale
- National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, 150 South Huntington Ave (116B-2), Boston, MA, 02130, USA
- Department of Psychiatry and Behavioral Sciences, SUNY Downstate Health Sciences University, Brooklyn, NY, USA
- Institute for Genomics in Health (IGH), SUNY Downstate Health Sciences University, Brooklyn, NY, USA
| | - Jennifer R Fonda
- Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA
- Translational Research Center for TBI and Stress Disorders (TRACTS) and Geriatric Research, Educational and Clinical Center (GRECC), VA Boston Healthcare System, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Mark W Miller
- National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, 150 South Huntington Ave (116B-2), Boston, MA, 02130, USA
- Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA
| | - Erika J Wolf
- National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, 150 South Huntington Ave (116B-2), Boston, MA, 02130, USA
- Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA
| | - Rui Zhang
- National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, 150 South Huntington Ave (116B-2), Boston, MA, 02130, USA
| | - Richard Sherva
- Biomedical Genetics, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA
| | - Kelly M Harrington
- Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA
- Million Veteran Program (MVP) Coordinating Center, VA Boston Healthcare System, Boston, MA, USA
| | - Victoria Merritt
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA, USA
- Department of Psychiatry, University of California, La Jolla, San Diego, CA, USA
| | - Matthew S Panizzon
- Department of Psychiatry, University of California, La Jolla, San Diego, CA, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA, USA
| | - Richard L Hauger
- Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, San Diego, CA, USA
- Department of Psychiatry, University of California, La Jolla, San Diego, CA, USA
- Center for Behavior Genetics of Aging, University of California, La Jolla, San Diego, CA, USA
| | - J Michael Gaziano
- Million Veteran Program (MVP) Coordinating Center, VA Boston Healthcare System, Boston, MA, USA
- Division of Aging, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Mark W Logue
- National Center for PTSD, Behavioral Sciences Division, VA Boston Healthcare System, 150 South Huntington Ave (116B-2), Boston, MA, 02130, USA.
- Department of Psychiatry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA.
- Biomedical Genetics, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, 02130, USA.
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA.
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15
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Flicker L. Evidence-based strategies to prevent cognitive decline in older people. Maturitas 2024; 187:108062. [PMID: 38943792 DOI: 10.1016/j.maturitas.2024.108062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 06/23/2024] [Accepted: 06/26/2024] [Indexed: 07/01/2024]
Abstract
A helpful method to understand cognitive decline in older people is to consider this entity as increasing cognitive frailty caused by a number of interacting pathological processes. Over the last 20 years, multiple lifestyle, environmental and constitutional factors have been linked to the development of cognitive decline. For two interventions based on these factors, increasing physical activity and the control of hypertension, there is class 1 evidence for benefit. Other interventions based on these factors do not have the support of high-level evidence for the alteration of cognitive decline, but their other benefits would argue for their implementation. These interventions include increasing education, smoking cessation, avoiding head injuries, decreasing exposure to air pollution and increased social connections. As cognitive decline is experienced almost universally with ageing, and serious cognitive decline is experienced by substantial numbers of low-risk individuals, whole-of-population intervention strategies are the most effective and efficient. For other interventions to help prevent cognitive decline there is not sufficient evidence for their implementation to be recommended. These include alteration of alcohol ingestion, correction of hearing loss, treatment of depression, dietary interventions, menopausal hormone treatment and monoclonal antibodies directed against amyloid-β.
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Affiliation(s)
- Leon Flicker
- Western Australian Centre for Health and Ageing, Medical School, University of Western Australia, Australia.
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16
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Silvey S, Sterling RK, French E, Godschalk M, Gentili A, Patel N, Bajaj JS. A Possible Reversible Cause of Cognitive Impairment: Undiagnosed Cirrhosis and Potential Hepatic Encephalopathy in Patients with Dementia. Am J Med 2024:S0002-9343(24)00398-X. [PMID: 38942345 DOI: 10.1016/j.amjmed.2024.06.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 06/30/2024]
Abstract
BACKGROUND Dementia and hepatic encephalopathy (HE) have symptom overlap and are challenging to differentiate. The presence of undiagnosed cirrhosis may lead to missed opportunities to treat HE, which was found in a Veterans database. This needs validation in a non-Veteran cohort. METHODS A retrospective cohort study was conducted between 2009 and 2019 using national non-Veteran patient data from the multi-center TriNetX database. Participants included 68,807 patients with a dementia diagnosis at ≥2 visits, no prior diagnosis of cirrhosis, and with sufficient laboratory test results to calculate the Fibrosis-4 (FIB-4) index, which indicates liver disease. Prevalences of high FIB-4 scores (>2.67 and >3.25) were measured within the cohort, and associations between high FIB-4 and comorbidities/demographics were examined. RESULTS Within the cohort (44.7% male, 78.0% white, mean age 72.73 years (±11.09)), 7.6% (n = 5815) had a FIB-4 index >3.25 and 12.8% (n=8683) had FIB-4 >2.67. In multivariable logistic regression models, FIB-4 > 3.25 was associated with male gender (OR: 1.42 [1.33-1.51]), congestive heart failure (OR:1.73 [1.59-1.87]), viral hepatitis (OR: 2.23 [1.84-2.68]), alcohol use disorder (OR: 1.39 [1.22-1.58]), and chronic kidney disease (OR: 1.38 [1.28-1.48]), and inversely associated with white race (OR: 0.76 [0.71-0.82]) and diabetes (OR: 0.82 [0.77-0.88]). Similar findings were associated with the FIB-4 > 2.67 threshold. CONCLUSION The findings of this national cohort suggest that the FIB-4 index could be utilized to screen for potential undiagnosed cirrhosis in patients with dementia and that hepatic encephalopathy that might be misdiagnosed as dementia or cause worsening of cognitive function in patients with dementia.
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Affiliation(s)
- Scott Silvey
- Department of Population Health, Virginia Commonwealth University
| | - Richard K Sterling
- C. Kenneth and Dianne Wright Center for Clinical and Translational Research, Virginia Commonwealth University; Division of Gastroenterology, Hepatology, and Nutrition, Virginia Commonwealth University and Richmond VA Medical Center
| | - Evan French
- C. Kenneth and Dianne Wright Center for Clinical and Translational Research, Virginia Commonwealth University
| | - Michael Godschalk
- Division of Geriatrics, Virginia Commonwealth University and Richmond VA Medical Center
| | - Angela Gentili
- Division of Geriatrics, Virginia Commonwealth University and Richmond VA Medical Center
| | - Nilang Patel
- Division of Nephrology, Virginia Commonwealth University and Richmond VA Medical Center
| | - Jasmohan S Bajaj
- Division of Gastroenterology, Hepatology, and Nutrition, Virginia Commonwealth University and Richmond VA Medical Center.
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Baltic S, Nedeljkovic D, Todorovic N, Ranisavljev M, Korovljev D, Cvejic J, Ostojic J, LeBaron TW, Timmcke J, Stajer V, Ostojic SM. The impact of six-week dihydrogen-pyrroloquinoline quinone supplementation on mitochondrial biomarkers, brain metabolism, and cognition in elderly individuals with mild cognitive impairment: a randomized controlled trial. J Nutr Health Aging 2024; 28:100287. [PMID: 38908296 DOI: 10.1016/j.jnha.2024.100287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/06/2024] [Accepted: 06/01/2024] [Indexed: 06/24/2024]
Abstract
OBJECTIVES To assess the impact of medium-term supplementation with dihydrogen and pyrroloquinoline quinone (PQQ) on mitochondrial biomarkers, brain metabolism, and cognition in elderly individuals diagnosed with mild cognitive impairment. DESIGN A parallel-group, randomized, placebo-controlled, double-blind experimental design, maintaining a 1:1 allocation ratio between the experimental group (receiving the dihydrogen-producing minerals and PQQ) and the control group (receiving the placebo) throughout the trial. SETTING AND PARTICIPANTS Thirty-four elderly individuals with mild cognitive impairment (mean age 71.9 ± 3.8 years; 28 females) voluntarily provided written consent to participate in this trial. Participants were assigned in a double-blind parallel-group design to receive either a dihydrogen-PQQ mixture (Alpha Hope®, CalerieLife, Irvine, CA) or placebo twice daily for a 6-week intervention period. METHODS The primary endpoint was the change in serum brain-derived neurotrophic factor (BDNF) from baseline to the 6-week follow-up; secondary outcomes included cognitive function indices, specific metabolites in brain tissue, brain oxygenation, and the prevalence and severity of side effects. Interaction effects (time vs. intervention) were evaluated using two-way ANOVA with repeated measures and Friedman's 2-way ANOVA by ranks, for normally distributed data with homogeneous variances and non-homogeneous variances, respectively. RESULTS Dihydrogen-PQQ resulted in a significant elevation in serum BDNF levels at the six-week follow-up (P = 0.01); conversely, no changes in BDNF levels were observed in the placebo group throughout the study duration (P = 0.27). A non-significant trend in the impact of interventions on BDNF levels was observed (treatment vs. time interaction, P = 0.14), suggesting a tendency for dihydrogen-PQQ to upregulate BDNF levels compared to the placebo. A significant interaction effect was observed for the Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-Cog) scores in the orientation domain (P = 0.03), indicating the superiority of dihydrogen-PQQ over placebo in enhancing this cognitive aspect. Cerebral oxygenation saturation exhibited a significant increase following the administration of the dihydrogen-PQQ mixture, from 48.4 ± 7.2% at baseline to 52.8 ± 6.6% at 6-week post-administration (P = 0.005). In addition, brain N-acetyl aspartate levels significantly increased at seven out of thirteen locations post-intervention in participants receiving the mixture (P ≤ 0.05). CONCLUSIONS Despite the limited number of participants included in the study for interpreting clinical parameters, the dihydrogen-PQQ mixture blend shows promise as a potential dietary intervention for enhancing mental orientation and brain metabolism in individuals with age-related mild cognitive decline.
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Affiliation(s)
- Sonja Baltic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - David Nedeljkovic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Nikola Todorovic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Marijana Ranisavljev
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Darinka Korovljev
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Cvejic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Ostojic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Tyler W LeBaron
- Molecular Hydrogen Institute Cedar City, UT, USA; Southern Utah University, Cedar City, UT, USA
| | | | - Valdemar Stajer
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia
| | - Sergej M Ostojic
- Applied Bioenergetics Lab, Faculty of Sport and PE, University of Novi Sad, Novi Sad, Serbia; Department of Nutrition and Public Health, University of Agder, Kristiansand, Norway; Faculty of Health Sciences, University of Pecs, Pecs, Hungary.
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Lin Z, Wang Y, Gill TM, Chen X. Association of Childhood Exposure to School Racial Segregation with Late-Life Cognitive Outcomes among Older Americans. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.21.24309186. [PMID: 38947046 PMCID: PMC11213034 DOI: 10.1101/2024.06.21.24309186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
IMPORTANCE Disparities in cognition, including dementia occurrence, persist between White and Black older adults, and are possibly influenced by early educational differences stemming from structural racism. However, the relationship between school racial segregation and later-life cognition remains underexplored. OBJECTIVE To investigate the association between childhood contextual exposure to school racial segregation and cognitive outcomes in later life. DESIGN SETTING AND PARTICIPANTS Data from 16,625 non-Hispanic White (hereafter, White) and 3,335 non-Hispanic Black (hereafter, Black) Americans aged 65 or older were analyzed from the Health and Retirement Study. EXPOSURES State-level White-Black dissimilarity index for public elementary schools in the late 1960s (range: 0-100) was used to measure school segregation. States were categorized into high segregation (383.6) and low segregation (<83.6) based on the top quintile. MAIN OUTCOMES AND MEASURES Cognitive scores, cognitive impairment (with or without dementia), and dementia were assessed using the Telephone Interview for Cognitive Status (TICS) and proxy assessment. Multilevel regression analyses were conducted, adjusting for demographic covariates, socioeconomic status, and health factors. Stratified analyses by race were performed. RESULTS The mean (SD) age of participants was 78.5 (5.7) years, and 11,208 (56.2%) were female. Participants exposed to high segregation exhibited lower cognitive scores (12.6 vs. 13.6; P<0.001) and higher prevalence of cognitive impairment (50.8% vs 41.4%; P<0.001) and dementia (26.0% vs. 19.5%; P<0.001), compared to those with low segregation exposure. Multilevel analyses revealed a significant negative association between school segregation and later-life cognitive even after adjusting sequentially for potential confounders, and these associations were stronger among Black than White participants. Notably, in the fully adjusted model, Black participants exposed to high segregation displayed significantly lower cognitive scores (-0.51; 95% CI: -0.94, -0.09) and higher likelihood of cognitive impairment (adjusted Odds Ratio [aOR]: 1.45, 95% CI: 1.22, 1.72) and dementia (aOR: 1.31, 95% CI: 1.06, 1.63). CONCLUSIONS AND RELEVANCE Our study underscores that childhood exposure to state-level school segregation is associated with late-life cognition, especially for Black Americans. Given the rising trend of school segregation in the US, educational policies aimed at reducing segregation are crucial to address health inequities. Clinicians can leverage patients' early-life educational circumstances to promote screening, prevention, and management of cognitive disorders.
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Affiliation(s)
- Zhuoer Lin
- Department of Health Policy and Management, Yale School of Public Health
| | - Yi Wang
- Department of Internal Medicine, Yale School of Medicine
| | - Thomas M. Gill
- Department of Internal Medicine, Yale School of Medicine
| | - Xi Chen
- Department of Health Policy and Management, Yale School of Public Health
- Department of Economics, Yale University
- Yale Alzheimer’s Disease Research Center
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Cantu P, Cho TC, Wyman M, Helppie-McFall B, Ajrouch K. Racial and Ethnic Disparities in the Monetary Value of Informal Caregiving for Non-Institutionalized People Living With Dementia. J Aging Health 2024:8982643241262917. [PMID: 38887015 DOI: 10.1177/08982643241262917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
OBJECTIVE To examine racial and ethnic differences in costs of informal caregiving among older adults with dementia in the United States. METHODS We used data from the 2002 to 2018 Health and Retirement Survey to estimate annual informal care hours for adults with dementia (n = 10,015). We used regression models to examine racial and ethnic differences in hours of informal care for activities of daily living (ADL) and instrumental ADL, controlling for demographic characteristics, education, and level of disability. RESULTS Our sample was 70% non-Hispanic White, 19% non-Hispanic Black, and 11% Hispanic. Hispanics received, on average, 35.8 hours of informal care each week, compared to 30.1 for Blacks and 20.1 for Whites. Racial and ethnic differences persisted when controlling for covariates. DISCUSSION Informal care is a greater cost to racial and ethnic minoritized families. Informal care was valued at a replacement cost of $44,656 for Hispanics, $37,508 for Blacks, and $25,121 for Whites.
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Affiliation(s)
- Phillip Cantu
- Department of Internal Medicine-Geriatrics, University of Texas Medical Branch, Galveston, TX, USA
| | - Tsai-Chin Cho
- Department of Internal Medicine, School of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Mary Wyman
- Department of Psychology, School of Medicine and Public Health, University of Wisconsin, Madison, Madison, WI, USA
| | - Brooke Helppie-McFall
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
| | - Kristine Ajrouch
- Department of Sociology, Anthropology, and Criminology, Eastern Michigan University, Ypsilanti, MI, USA
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Russell SJ, Parker K, Lehoczki A, Lieberman D, Partha IS, Scott SJ, Phillips LR, Fain MJ, Nikolich JŽ. Post-acute sequelae of SARS-CoV-2 infection (Long COVID) in older adults. GeroScience 2024:10.1007/s11357-024-01227-8. [PMID: 38874693 DOI: 10.1007/s11357-024-01227-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 05/26/2024] [Indexed: 06/15/2024] Open
Abstract
Long COVID, also known as PASC (post-acute sequelae of SARS-CoV-2), is a complex infection-associated chronic condition affecting tens of millions of people worldwide. Many aspects of this condition are incompletely understood. Among them is how this condition may manifest itself in older adults and how it might impact the older population. Here, we briefly review the current understanding of PASC in the adult population and examine what is known on its features with aging. Finally, we outline the major gaps and areas for research most germane to older adults.
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Affiliation(s)
- Samantha J Russell
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Banner University Medicine-Tucson, Tucson, AZ, USA
| | - Karen Parker
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Banner University Medicine-Tucson, Tucson, AZ, USA
| | - Andrea Lehoczki
- Doctoral College, Health Sciences Program, Semmelweis University, Budapest, Hungary
- Department of Haematology and Stem Cell Transplantation, National Institute for Haematology and Infectious Diseases, South Pest Central Hospital, 1097, Budapest, Hungary
- Department of Public Health, Semmelweis University, Budapest, Hungary
| | - David Lieberman
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Banner University Medicine-Tucson, Tucson, AZ, USA
| | - Indu S Partha
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Banner University Medicine-Tucson, Tucson, AZ, USA
| | - Serena J Scott
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Banner University Medicine-Tucson, Tucson, AZ, USA
| | - Linda R Phillips
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA
- College of Nursing, University of Arizona, Tucson, AZ, USA
| | - Mindy J Fain
- Division of General Internal Medicine, Geriatrics, and Palliative Medicine, Department of Medicine, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA.
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA.
- Banner University Medicine-Tucson, Tucson, AZ, USA.
- College of Nursing, University of Arizona, Tucson, AZ, USA.
| | - Janko Ž Nikolich
- Arizona Center of Aging, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA.
- Department of Immunobiology, University of Arizona College of Medicine-Tucson, Tucson, AZ, USA.
- The Aegis Consortium for Pandemic-Free Future, University of Arizona Health Sciences, Tucson, AZ, USA.
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21
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Scharre DW, Vrettos NE, Nagaraja HN, Wexler RK, Clark AD, Nguyen CM. Self-administered gerocognitive examination (SAGE) aids early detection of cognitive impairment at primary care provider visits. Front Med (Lausanne) 2024; 11:1353104. [PMID: 38938387 PMCID: PMC11208700 DOI: 10.3389/fmed.2024.1353104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 05/24/2024] [Indexed: 06/29/2024] Open
Abstract
Introduction Current estimates indicate that up to 50-75% of dementia cases are undiagnosed at an early stage when treatments are most effective. Conducting robust accurate cognitive assessments can be time-consuming for providers and difficult to incorporate into a time-limited Primary Care Provider (PCP) visit. We wanted to compare PCP visits with and without using the self-administered SAGE to determine differences in identification rates of new cognitive disorders. Methods Three hundred patients aged 65-89 without diagnosed cognitive disorders completing a non-acute office visit were enrolled (ClinicalTrials.gov identifier: NCT04063371). Two PCP offices conducted routine visits for 100 consecutive eligible patients each. One office used the SAGE in an additional 100 subjects and asked available informants about cognitive changes over the previous year. Chart reviews were conducted 60 days later. One-way analysis of variance and Fisher exact tests were used to compare the groups and outcomes. Results When SAGE was utilized, the PCP documented the detection of new cognitive conditions/concerns six times (9% versus 1.5%) as often (p = 0.003). The detection rate was nearly 4-fold for those with cognitively impaired SAGE scores (p = 0.034). Patients having impaired SAGE score and informant concerns were 15-fold as likely to have new cognitive conditions/concerns documented (p = 0.0007). Among providers using SAGE, 86% would recommend SAGE to colleagues. Discussion SAGE was easily incorporated into PCP visits and significantly increased identification of new cognitive conditions/concerns leading to new diagnoses, treatment, or management changes. The detection rate increased 15-fold for those with impaired SAGE scores combined with informant reports.
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Affiliation(s)
- Douglas W. Scharre
- Division of Cognitive Neurology, Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Nicole E. Vrettos
- Division of Cognitive Neurology, Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Haikady N. Nagaraja
- Division of Biostatistics, College of Public Health, The Ohio State University, Columbus, OH, United States
| | - Randell K. Wexler
- Department of Family and Community Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Aaron D. Clark
- Department of Family and Community Medicine, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Christopher M. Nguyen
- Department of Psychiatry and Behavioral Health, The Ohio State University Wexner Medical Center, Columbus, OH, United States
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22
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Womack CL, Perkins A, Arnold JM. Cognitive Impairment in the Primary Care Clinic. Prim Care 2024; 51:233-251. [PMID: 38692772 DOI: 10.1016/j.pop.2024.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Cognitive impairment is a common problem in the geriatric population and is characterized by variable symptoms of memory difficulties, executive dysfunction, language or visuospatial problems, and behavioral changes. It is imperative that primary care clinicians recognize and differentiate the variable symptoms associated with cognitive impairment from changes attributable to normal aging or secondary to other medical conditions. A thorough evaluation for potentially reversible causes of dementia is required before diagnosis with a neurodegenerative dementia. Other abnormal neurologic findings, rapid progression, or early age of onset are red flags that merit referral to neurology for more specialized evaluation and treatment.
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Affiliation(s)
- Cindy L Womack
- Department of Neurology, Neuroscience Institute, Southern Illinois University School of Medicine, 751 North Rutledge Street, PO 19643, Springfield, IL 62794, USA
| | - Andrea Perkins
- Department of Neurology, Neuroscience Institute, Southern Illinois University School of Medicine, 751 North Rutledge Street, PO 19643, Springfield, IL 62794, USA
| | - Jennifer M Arnold
- Department of Neurology, Neuroscience Institute, Southern Illinois University School of Medicine, 751 North Rutledge Street, PO 19643, Springfield, IL 62794, USA.
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23
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Jrolf CM. Dementia with Lewy bodies: Primary care PAs can make this difficult diagnosis. JAAPA 2024; 37:22-29. [PMID: 38747894 DOI: 10.1097/01.jaa.0000000000000019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
ABSTRACT Lewy body dementia is an umbrella term for dementia with Lewy bodies (DLB) and Parkinson disease dementia. These progressive, degenerative brain disorders link dementia with psychosis and parkinsonism and are difficult to diagnose. The diagnosis of DLB is challenging, especially in its early phase, because the presentation is variable. Relevant screening tools and a complete physical examination are essential. Making the correct diagnosis lets patients and caregivers make arrangements, have more timely access to services, improve patient quality of life, and lessen the burden on caregivers.
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Affiliation(s)
- Cheri M Jrolf
- Cheri M. Jrolf is a principal faculty member in the PA program at Lincoln Memorial University, based in Tampa, Fla. The author has disclosed no potential conflicts of interest, financial or otherwise
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24
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Molina‐Henry DP, Raman R, Liu A, Langford O, Johnson K, Shum LK, Glover CM, Dhadda S, Irizarry M, Jimenez‐Maggiora G, Braunstein JB, Yarasheski K, Venkatesh V, West T, Verghese PB, Rissman RA, Aisen P, Grill JD, Sperling RA. Racial and ethnic differences in plasma biomarker eligibility for a preclinical Alzheimer's disease trial. Alzheimers Dement 2024; 20:3827-3838. [PMID: 38629508 PMCID: PMC11180863 DOI: 10.1002/alz.13803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 06/18/2024]
Abstract
INTRODUCTION In trials of amyloid-lowering drugs for Alzheimer's disease (AD), differential eligibility may contribute to under-inclusion of racial and ethnic underrepresented groups. We examined plasma amyloid beta 42/40 and positron emission tomography (PET) amyloid eligibility for the ongoing AHEAD Study preclinical AD program (NCT04468659). METHODS Univariate logistic regression models were used to examine group differences in plasma and PET amyloid screening eligibility. RESULTS Of 4905 participants screened at time of analysis, 1724 were plasma eligible to continue in screening: 13.3% Hispanic Black, 24.7% Hispanic White, 20.8% non-Hispanic (NH) Asian, 24.7% NH Black, and 38.9% NH White. Plasma eligibility differed across groups in models controlling for covariates (odds ratio from 1.9 to 4.0 compared to the NH White reference group, P < 0.001). Among plasma eligible participants, PET eligibility did not differ by group. DISCUSSION These results suggest that prevalence of brain amyloid pathology differed, but that eligibility based on plasma was equally effective across racial and ethnic group members. HIGHLIGHTS Plasma amyloid eligibility is lower in underrepresented racial and ethnic groups. In plasma eligible adults, positron emission tomography eligibility rates are similar across race and ethnicity. Plasma biomarker tests may be similarly effective across racial and ethnic groups.
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Affiliation(s)
- Doris Patricia Molina‐Henry
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
- Present address:
Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern California, 9860 Mesa Rim Rd, San Diego, CA, 92121
| | - Rema Raman
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Andy Liu
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Oliver Langford
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Keith Johnson
- Massachusetts General Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Brigham and Women's HospitalBostonMassachusettsUSA
| | - Leona K. Shum
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Crystal M. Glover
- Rush Alzheimer's Disease CenterChicagoIllinoisUSA
- Department of Psychiatry and Behavioral SciencesRush University Medical CollegeChicagoIllinoisUSA
- Department of Neurological SciencesRush Medical CollegeChicagoIllinoisUSA
| | | | | | - Gustavo Jimenez‐Maggiora
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | | | | | | | - Tim West
- C2N DiagnosticsSt. LouisMissouriUSA
| | | | - Robert A. Rissman
- Department of Physiology and NeuroscienceAlzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Paul Aisen
- Alzheimer's Therapeutic Research InstituteKeck School of Medicine of the University of Southern CaliforniaSan DiegoCaliforniaUSA
| | - Joshua D. Grill
- Institute for Memory Impairments and Neurological DisordersUniversity of California IrvineIrvineCaliforniaUSA
| | - Reisa A. Sperling
- Massachusetts General Hospital, Harvard Medical SchoolBostonMassachusettsUSA
- Brigham and Women's HospitalBostonMassachusettsUSA
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25
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Paladino J, Ritchie C. Meeting the Communication and Care Planning Needs of Patients and Caregivers Affected by Dementia from the Time of Diagnosis. J Palliat Med 2024; 27:716-719. [PMID: 38770630 DOI: 10.1089/jpm.2024.0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Affiliation(s)
- Joanna Paladino
- Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Christine Ritchie
- Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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26
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Burke JF, Sussman JB, Yaffe K, Hayward RA, Giordani BJ, Galecki AT, Whitney R, Briceño EM, Gross AL, Elkind MSV, Manly JJ, Gottesman RF, Gaskin DJ, Sidney S, Levine DA. Effect of Population-Level Blood Pressure Treatment Strategies on Cardiovascular and Cognitive Outcomes. Circ Cardiovasc Qual Outcomes 2024; 17:e010288. [PMID: 38813695 PMCID: PMC11187641 DOI: 10.1161/circoutcomes.123.010288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 04/10/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND The large and increasing number of adults living with dementia is a pressing societal priority, which may be partially mitigated through improved population-level blood pressure (BP) control. We explored how tighter population-level BP control affects the incidence of atherosclerotic cardiovascular disease (ASCVD) events and dementia. METHODS Using an open-source ASCVD and dementia simulation analysis platform, the Michigan Chronic Disease Simulation Model, we evaluated how optimal implementation of 2 BP treatments based on the Eighth Joint National Committee recommendations and SPRINT (Systolic Blood Pressure Intervention Trial) protocol would influence population-level ASCVD events, global cognitive performance, and all-cause dementia. We simulated 3 populations (usual care, Eighth Joint National Committee based, SPRINT based) using nationally representative data to annually update risk factors and assign ASCVD events, global cognitive performance scores, and dementia, applying different BP treatments in each population. We tabulated total ASCVD events, global cognitive performance, all-cause dementia, optimal brain health, and years lived in each state per population. RESULTS Optimal implementation of SPRINT-based BP treatment strategy, compared with usual care, reduced ASCVD events in the United States by ≈77 000 per year and produced 0.4 more years of stroke- or myocardial infarction-free survival when averaged across all Americans. Population-level gains in years lived free of ASCVD events were greater for SPRINT-based than Eighth Joint National Committee-based treatment. Survival and years spent with optimal brain health improved with optimal SPRINT-based BP treatment implementation versus usual care: the average patient with hypertension lived 0.19 additional years and 0.3 additional years in optimal brain health. SPRINT-based BP treatment increased the number of years lived without dementia (by an average of 0.13 years/person with hypertension), but increased the total number of individuals with dementia, mainly through more adults surviving to advanced ages. CONCLUSIONS Tighter BP control likely benefits most individuals but is unlikely to reduce dementia prevalence and might even increase the number of older adults living with dementia.
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Affiliation(s)
- James F. Burke
- Ohio State University Wexner Medical Center, Department of Neurology, Columbus
| | - Jeremy B. Sussman
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
- Institute for Healthcare Policy and Innovation, U-M, Ann Arbor
- Ann Arbor Veteran’s Affairs Hospital, Center for Clinical Management and Research, Ann Arbor, MI
| | - Kristine Yaffe
- Departments of Psychiatry, Neurology and Epidemiology, University of California, San Francisco
| | - Rodney A. Hayward
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
- Institute for Healthcare Policy and Innovation, U-M, Ann Arbor
- Ann Arbor Veteran’s Affairs Hospital, Center for Clinical Management and Research, Ann Arbor, MI
| | - Bruno J. Giordani
- Department of Psychiatry & Michigan Alzheimer’s Disease Center, U-M, Ann Arbor
| | - Andrzej T. Galecki
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
- Department of Biostatistics, U-M, Ann Arbor
| | - Rachael Whitney
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
| | - Emily M. Briceño
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
- Department of Physical Medicine and Rehabilitation, U-M, Ann Arbor
| | - Alden L. Gross
- Department of Epidemiology, Johns Hopkins Bloomberg School Public Health, Baltimore, MD
| | - Mitchell S. V. Elkind
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
| | - Jennifer J. Manly
- Department of Neurology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY
- Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University, New York, NY
| | - Rebecca F. Gottesman
- Stroke Branch, National Institute of Neurological Disorders and Stroke (NINDS), Bethesda, MD
| | - Darrell J. Gaskin
- Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Stephen Sidney
- Kaiser Permanente Northern California Division of Research, Oakland
| | - Deborah A. Levine
- Department of Internal Medicine and Cognitive Health Services Research Program, University of Michigan (U-M), Ann Arbor
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Suchy‐Dicey AM, Domoto‐Reilly K, Nelson L, Jayadev S, Buchwald DS, Grabowski TJ, Rhoads K. Epidemiology and prevalence of dementia and Alzheimer's disease in American Indians: Data from the Strong Heart Study. Alzheimers Dement 2024; 20:4174-4184. [PMID: 38747387 PMCID: PMC11180871 DOI: 10.1002/alz.13849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 06/18/2024]
Abstract
INTRODUCTION Accurate epidemiologic estimates for dementia are lacking for American Indians, despite substantive social and health disparities. METHODS The Strong Heart Study, a population-based cohort of 11 American Indian tribes, conducted detailed cognitive testing and examinations over two visits approximately 7 years apart. An expert panel reviewed case materials for consensus adjudication of cognitive status (intact; mild cognitive impairment [MCI]; dementia; other impaired/not MCI) and probable etiology (Alzheimer's disease [AD], vascular bain injury [VBI], traumatic brain injury [TBI], other). RESULTS American Indians aged 70-95 years had 54% cognitive impairment including 10% dementia. VBI and AD were primary etiology approximately equal proportions (>40%). Apolipoprotein (APO) Eε4 carriers were more common among those with dementia (p = 0.040). Plasma pTau, glial fibrillary acidic protein (GFAP), and neurofilament light chain (NfL) were higher among those with cognitive impairment, but not amyloid beta (Aβ). Cognitive intact had mean 3MSE 92.2 (SD 6.4) and mean Montreal Cognitive Assessment (MoCA) score of 21.3 (SD 3.2). DISCUSSION This is the first population-based study to estimate the prevalence of vascular and Alzheimer's dementias in a population-based study of American Indians. HIGHLIGHTS The Strong Heart Study is a population-based cohort of American Indian tribes, conducted over 30+ years and three US geographic regions (Northern Plains, Southern Plains, Southwest). Our teams conducted detailed cognitive testing, neurological examination, and brain imaging over two visits approximately 7 years apart. An expert panel reviewed collected materials for consensus-based adjudication of cognitive status (intact; MCI; dementia; other impaired/not MCI) and probable underlying etiology (AD; VBI; TBI; other). In this cohort of American Indians aged 70-95, 54% were adjudicated with cognitive impairment, including approximately 35% MCI and 10% dementia. These data expand on prior reports from studies using electronic health records, which had suggested prevalence, and incidence of dementia in American Indians to be more comparable to the majority population or non-Hispanic White individuals, perhaps due to latent case undercounts in clinical settings. Vascular and neurodegenerative injuries were approximately equally responsible for cognitive impairment, suggesting that reduction of cardiovascular disease is needed for primary prevention. Traumatic injury was more prevalent than in other populations, and common among those in the "other/not MCI" cognitive impairment category. Mean scores for common dementia screening instruments-even among those adjudicated as unimpaired-were relatively low compared to other populations (mean unimpaired 3MSE 92.2, SD 6.4; mean unimpaired MoCA 21.3, SD 3.2), suggesting the need for cultural and environmental adaptation of common screening and evaluation instruments.
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Affiliation(s)
- Astrid M. Suchy‐Dicey
- Huntington Medical Research InstitutesPasadenaCaliforniaUSA
- Washington State University Elson S Floyd College of MedicineSeattleWashingtonUSA
| | | | - Lonnie Nelson
- Washington State University College of NursingSpokaneWashingtonUSA
| | - Suman Jayadev
- University of Washington School of MedicineSeattleWashingtonUSA
| | - Dedra S. Buchwald
- Washington State University Elson S Floyd College of MedicineSeattleWashingtonUSA
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Goodijk D, Banning LBD, Te Velde-Keyzer CA, van Munster BC, Bakker SJL, van Leeuwen BL, Zeebregts CJ, Pol RA. Preoperative cognitive performance and its association with postoperative complications in vascular surgery patients: A prospective study. Am J Surg 2024:115784. [PMID: 38824053 DOI: 10.1016/j.amjsurg.2024.115784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/14/2024] [Accepted: 05/27/2024] [Indexed: 06/03/2024]
Abstract
BACKGROUND Cognitive impairment affects nearly half of vascular surgery patients, but its association with postoperative outcomes remains poorly understood. This study explores the link between preoperative cognitive performance and postoperative complications, including postoperative delirium, in vascular surgery patients. METHODS A prospective cohort study was conducted on vascular surgery patients aged ≥65. Preoperative cognitive performance was assessed using the Montreal Cognitive Assessment, and postoperative complications were evaluated using the Comprehensive Complication Index. The association was analyzed through multivariable logistic regression. RESULTS Among 110 patients (18.2 % female, mean age 73.8 ± 5.7 years), cognitive impairment was evident in 48.2 %. Of the participants, 29 (26.3 %) experienced postoperative complications, among which 11 (10 %) experienced postoperative delirium. The adjusted odds ratio for the association between cognitive performance and postoperative complications was 1.19 (95 % CI 1.02-1.38; p = 0.02). CONCLUSION Worse preoperative cognitive performance correlated with increased odds of postoperative complications and postoperative delirium in vascular surgery patients.
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Affiliation(s)
- Dagmar Goodijk
- Department of Surgery, Division of Vascular Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Louise B D Banning
- Department of Surgery, Division of Vascular Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Charlotte A Te Velde-Keyzer
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Barbara C van Munster
- Department of Internal Medicine, Division of Geriatric Medicine, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Stephan J L Bakker
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Barbara L van Leeuwen
- Department of Surgery, Division of Surgical Oncology, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Clark J Zeebregts
- Department of Surgery, Division of Vascular Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands
| | - Robert A Pol
- Department of Surgery, Division of Vascular Surgery, University of Groningen, University Medical Centre Groningen, Groningen, the Netherlands.
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Wang J, Blair EM, Forman J, Zahuranec DB, Reale BK, Cao Z, Plassman BL, Welsh-Bohmer KA, Kollman CD, Levine DA. Patient and Care Partner Perspective on Potential Undertreatment of Patients With Mild Cognitive Impairment for Cardiovascular Disease. J Appl Gerontol 2024:7334648241253465. [PMID: 38805247 DOI: 10.1177/07334648241253465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Mild cognitive impairment (MCI) affects up to 22% of US older adults aged 65 and older. Research suggests that physicians may recommend less cardiovascular disease (CVD) treatment for older adults with MCI due to assumptions about their preferences. To delve into the disparity between patient preferences and physician assumptions in CVD treatment recommendations, we conducted a multi-site qualitative study to explore the underlying reasons for this discrepancy, providing insights into potential communication barriers and strategies to enhance patient-physician relationships. RESEARCH DESIGN AND METHODS Employing a descriptive qualitative approach, we conducted interviews with 20 dyads, comprising older adults with MCI (n = 11) and normal cognition NC (n = 9), and their respective care partners. During these interviews, participants were prompted to reflect on physicians recommending fewer guideline-concordant CVD treatments to older adults with MCI than those with NC and physicians presuming that older adults with MCI desired less care or treatment in general than those with NC. RESULTS We identified three primary themes: (1) Most participants had negative reactions to the data that physicians might undertreat patients with MCI for CVD; (2) Participants suggested that physicians may undertreat patients with MCI due to physician assumptions about treatment effectiveness, patient prognosis, value, and treatment adherence, and (3) Participants proposed that physicians may elicit less input from patients with MCI about treatments because of negative physician assumptions about patient decision-making capacity and physician time limitations. DISCUSSION AND IMPLICATIONS This study underscores the pressing need for person-centered communication and involvement of older adults with MCI and their care partners in the decision-making process to ensure that decisions are well-informed, reflecting patients' genuine preferences and values. Addressing these concerns has the potential to substantially enhance the quality of care and treatment outcomes for this vulnerable population, ultimately promoting their overall well-being.
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Affiliation(s)
- Jing Wang
- College of Health and Human Services, University of New Hampshire, Durham, NH, USA
| | - Emilie M Blair
- Department of Internal Medicine and Cognitive Health Services Research Program, U-M Medical School, Ann Arbor, MI, USA
| | - Jane Forman
- Department of Internal Medicine and Cognitive Health Services Research Program, U-M Medical School, Ann Arbor, MI, USA
- VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
- Institute for Social Research, U-M, Ann Arbor, MI, USA
| | | | - Bailey K Reale
- Department of Internal Medicine and Cognitive Health Services Research Program, U-M Medical School, Ann Arbor, MI, USA
- Lake Erie College of Osteopathic Medicine (LE-COM), Greensburg, PA, USA
| | - Zihao Cao
- School of Medicine, Fudan University, Shanghai, China
| | - Brenda L Plassman
- Department of Psychiatry and Behavioral Science, Duke University School of Medicine, Durham, NC, USA
| | - Kathleen A Welsh-Bohmer
- Department of Psychiatry and Behavioral Science, Duke University School of Medicine, Durham, NC, USA
| | | | - Deborah A Levine
- Department of Internal Medicine and Cognitive Health Services Research Program, U-M Medical School, Ann Arbor, MI, USA
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Lin Z, Ye J, Allore H, Gill TM, Chen X. Early-Life Circumstances and Racial Disparities in Cognition Among Older Adults in the US. JAMA Intern Med 2024:2818893. [PMID: 38805197 PMCID: PMC11134283 DOI: 10.1001/jamainternmed.2024.1132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/29/2024] [Indexed: 05/29/2024]
Abstract
Importance Given the critical role of neurocognitive development in early life, understanding the association between early-life circumstances and racial disparities in cognition has important implications. Objective To assess whether racial differences in early-life circumstances are collectively and individually associated with racial disparities in late-life cognition among older adults in the US. Design, Setting, and Participants This cross-sectional study used comprehensive life history data from the Health and Retirement Study, a nationally representative survey of US adults 50 years or older. Data analyses were performed from August 9, 2022, to January 20, 2024. Main Outcomes and Measures Racial differences in early-life circumstances and racial disparities in late-life cognition were investigated using a Blinder-Oaxaca decomposition regression model. Cognitive outcomes, including cognitive score and cognitive impairment, were evaluated using the Telephone Interview for Cognitive Status. Early-life educational experiences were primary explanatory variables; early-life cohort, regional, financial, health, trauma, family relationship factors, and educational attainment were additional explanatory variables; demographic and genetic factors were covariates. Results The study sample comprised 9015 participants; 1634 non-Hispanic Black (hereafter, Black) individuals (18.1%) and 7381 non-Hispanic White (hereafter, White) individuals (81.9%). Among Black participants, the mean (SD) age was 69.2 (9.2) years and 1094 (67.0%) were women. Among White participants, the mean (SD) age was 73.2 (10.1) years and 4410 (59.7%) were women. Cognitive scores (scale, 0-27) were significantly lower among Black participants (13.5 [95% CI, 13.3-13.7] points) than among White participants (15.8 [95% CI, 15.7-15.9] points), while the prevalence of cognitive impairment (cognitive score <12) was significantly higher among Black participants (33.6 [95% CI, 31.3-35.9] percentage points [ppt]) than among White participants (16.4 [95% CI, 15.6-17.2] ppt). Substantial racial differences were observed in early-life circumstances. Overall, differences in early-life circumstances were associated with 61.5% of the racial disparities in cognitive score (1.4 [95% CI, 0.88-2.0] points), and 82.3% of the racial disparities in cognitive impairment (14.2 [95% CI, 8.8-19.5] ppt), respectively. In multivariable analyses, early-life educational experiences were associated with 35.2% of the disparities in cognitive score and 48.6% in cognitive impairment. Notably, school racial segregation (all segregated schooling before college) was associated with 28.8% to 39.7% of the racial disparities in cognition. These findings were consistent in a series of sensitivity analyses. Conclusions and Relevance The findings of this cross-sectional study suggest that less favorable early-life circumstances are associated with clinically meaningful racial disparities in late-life cognition. Policies that improve educational equity have the potential to reduce racial disparities in cognition in older ages. Clinicians may leverage early-life circumstances to promote the screening, prevention, and interventions of cognitive impairment more efficiently, thereby promoting health equity.
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Affiliation(s)
- Zhuoer Lin
- Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut
| | - Justin Ye
- Department of Economics, Yale University, New Haven, Connecticut
| | - Heather Allore
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
- Department of Biostatistics, Yale School of Public Health, New Haven, Connecticut
- Yale Alzheimer’s Disease Research Center, New Haven, Connecticut
- Statistical Editor, JAMA Internal Medicine
| | - Thomas M. Gill
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut
| | - Xi Chen
- Department of Health Policy and Management, Yale School of Public Health, New Haven, Connecticut
- Department of Economics, Yale University, New Haven, Connecticut
- Yale Alzheimer’s Disease Research Center, New Haven, Connecticut
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Zhu W, Zhao X, Xu Q, Xue Y. Associations of cognitive impairment and functional limitation with all-cause mortality risk in older adults: A population-based study from the National Health and Nutrition Examination Survey. APPLIED NEUROPSYCHOLOGY. ADULT 2024:1-10. [PMID: 38803116 DOI: 10.1080/23279095.2024.2353867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
Cognitive impairment and functional limitation are commonly observed in older adults. They have a complex correlation, and both are risk factors for mortality. This prospective cohort study aimed to explore the independent and joint impact of cognitive impairment and functional limitations on all-cause mortality in older adults. A total of 3,759 participants aged ≥ 60 years who had available information on mortality data, cognitive function, physical function, and covariates were enrolled. Cox proportional hazards regression models were employed to assess the independent and joint impacts of cognitive impairment and functional limitation on all-cause mortality. Smoothing curve fitting was used to show the nonlinear relationship between the Digit Symbol Coding (DSC) score and all-cause mortality. An interaction between cognitive impairment and functional limitation was identified when examining their associations with all-cause mortality. Cognitive impairment and functional limitation independently correlated with all-cause mortality risk even after adjusting for covariates and performing mutual adjustments (HR for cognitive impairment: 1.34, 95% CI 1.15-1.56; HR for functional limitation: 1.50, 95% CI 1.32-1.70). When the DSC score was > 18, as the score increased, the risk of death significantly decreased (HR 0.99, 95% CI 0.98-0.99). Participants with both cognitive impairment and functional limitation had the highest hazard ratio for all-cause mortality (HR 1.98, 95%CI 1.63-2.40). In summary, cognitive impairment and functional limitation independently correlated with increased all-cause mortality risk. A higher DSC score was a protective factor reducing the premature mortality risk. Older adults with cognitive impairment and functional limitation demonstrated the highest all-cause mortality risk.
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Affiliation(s)
- Wenxiu Zhu
- Chongqing General Hospital, Chongqing, China
| | - Xuyan Zhao
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qingqin Xu
- Chongqing General Hospital, Chongqing, China
| | - Yun Xue
- Chongqing General Hospital, Chongqing, China
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Kiadarbandsari A, Lemalu MT, Wilson S, Fa'alau F. Dementia among Minority Populations: A Scoping Review of Meaning, Language, and Translation. Dement Geriatr Cogn Disord 2024:1-11. [PMID: 38776886 DOI: 10.1159/000539446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Dementia as a neurocognitive disorder is becoming increasingly common worldwide, and minority groups are more vulnerable than the general population. Many factors may contribute to their vulnerability such as misconceptions, language barriers, cultural factors, invalid assessment tools, lack of knowledge, or assigning spiritual beliefs to dementia symptoms. Therefore, this scoping literature review aimed to clarify how empirical studies reflect the meaning of dementia, language, and translation among minority ethnic groups. SUMMARY The PRISMA extension for the scoping review protocol was used. Thirty-eight studies published in English were reviewed and analysed. The findings revealed that lack of knowledge about dementia and attributing the disease to the normal ageing process were frequent among minority groups. Furthermore, their cultural-specific perspectives and worldviews of wellness and well-being can impact the way dementia is perceived, consequent help-seeking behaviours, or caregiving. Facilitating educational programs to enhance the knowledge and experiences of ethnic communities might be beneficial. Moreover, language is shown to be an important aspect in dementia assessment and participants' educational level could significantly impact their functional capacity when responding to cognitive measures. Even though there are some useful screening tests, diagnosis barriers might be eased by assessment tool development, modifications, and accurate translations for ethnic communities. KEY MESSAGES A promising pathway to support ethnically diverse communities regarding dementia can be raising awareness, providing ethnic-specific services, developing cultural-specific tools to assess dementia or any cognitive impairment by considering perceptions, language, and culture among ethnic groups. Cultural and spiritual considerations could also encourage engagement during assessment.
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Affiliation(s)
- Atefeh Kiadarbandsari
- Pacific Health, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Miraneta Tafue Lemalu
- Pacific Health, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Sharyn Wilson
- Counselling Service, Soul Talk, Auckland, New Zealand
| | - Fuafiva Fa'alau
- Pacific Health, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
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Donders J, Maher T. Clinical Utility of the Neuropsychological Assessment Battery Judgment Subtest in the Evaluation of Older Adults. Arch Clin Neuropsychol 2024:acae035. [PMID: 38712367 DOI: 10.1093/arclin/acae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/05/2024] [Accepted: 04/11/2024] [Indexed: 05/08/2024] Open
Abstract
OBJECTIVE The purpose of this retrospective archival study was to explore the clinical utility of the Judgment subtest of the Neuropsychological Assessment Battery (NAB) in older adults who were referred because of cognitive concerns. Specifically, we were interested in how NAB Judgment covaried with other measures of executive functioning. METHOD 226 adults, aged 61-89 years (48% dementia, 35% mild cognitive impairment, 18% cognitively intact) completed NAB Judgment. They also completed Trail Making Test (TMT) A and B. In addition, Behavior Rating Inventory of Executive Function (BRIEF-A) informant and self-reports were obtained to measure executive functioning in daily life. RESULTS Scores on NAB Judgment did not correlate significantly with BRIEF-A informant ratings. However, there was a statistically significant correlation between BRIEF-A informant ratings and TMT B. Better performance on TMT B was associated with fewer informant concerns. Furthermore, subgroups with versus without informant BRIEF-A Metacognition indices in the range of impairment demonstrated a statistically significant difference on TMT B but not on Judgment. CONCLUSIONS Executive functioning in older adults should not be assessed using NAB Judgment alone. Such an evaluation should be supplemented with other in-person tests as well as informant ratings of daily functioning.
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Affiliation(s)
- Jacobus Donders
- Department of Psychology, Mary Free Bed Rehabilitation Hospital, Grand Rapids, MI, USA
| | - Tracy Maher
- Department of Psychology, Mary Free Bed Rehabilitation Hospital, Grand Rapids, MI, USA
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Xiao L, Zhou C, Zhang S, Wang Y. A bibliometric analysis on the health behaviors related to mild cognitive impairment. Front Aging Neurosci 2024; 16:1402347. [PMID: 38765772 PMCID: PMC11099246 DOI: 10.3389/fnagi.2024.1402347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 04/19/2024] [Indexed: 05/22/2024] Open
Abstract
Background Mild cognitive impairment (MCI) is commonly defined as a transitional subclinical state between normal aging and dementia. A growing body of research indicates that health behaviors may play a protective role against cognitive decline and could potentially slow down the progression from MCI to dementia. The aim of this study is to conduct a bibliometric analysis of literature focusing on health behaviors and MCI to summarize the factors and evidence regarding the influence of health behaviors on MCI. Methods The study performed a bibliometric analysis by retrieving publications from the Science Citation Index and Social Sciences Citation Index sub-databases within the Web of Science Core Collection. Utilizing VOSviewer and CiteSpace software, a total of 2,843 eligible articles underwent co-citation, co-keywords, and clustering analyses. This methodology aimed to investigate the current status, trends, major research questions, and potential future directions within the research domain. Results The bibliometric analysis indicates that research on healthy behaviors in individuals with MCI originated in 2002 and experienced rapid growth in 2014, reflecting the increasing global interest in this area. The United States emerged as the primary contributor, accounting for more than one-third of the total scientific output with 982 articles. Journals that published the most articles on MCI-related health behaviors included "Journal of Alzheimer's Disease," "Neurobiology of Aging," "Frontiers in Aging Neuroscience," and other geriatrics-related journals. High-impact papers identified by VOSviewer predominantly cover concepts related to MCI, such as diagnostic criteria, assessment, and multifactorial interventions. Co-occurrence keyword analysis highlights five research hotspots in health behavior associated with MCI: exercise, diet, risk factors and preventive measures for dementia, cognitive decline-related biomarkers, and clinical trials. Conclusion This study provides a comprehensive review of literature on health behavior in individuals with MCI, emphasizing influential documents and journals. It outlines research trends and key focal points, offering valuable insights for researchers to comprehend significant contributions and steer future studies.
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Affiliation(s)
- Liping Xiao
- Department of Information Technology, Jinan University Library, Guangzhou, China
| | - Chunyi Zhou
- School of Nursing, Hubei University of Chinese Medicine, Wuhan, China
| | - Shibo Zhang
- School of Nursing, Hubei University of Chinese Medicine, Wuhan, China
| | - Yuncui Wang
- School of Nursing, Hubei University of Chinese Medicine, Wuhan, China
- Engineering Research Center for Traditional Chinese Medicine Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Wuhan, China
- Hubei Shizhen Laboratory, Wuhan, China
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Li H, Peng A, Lai W, Wu J, Ji S, Hu D, Chen S, Zhu C, Hong Q, Zhang M, Chen L. Impacts of education level on Montreal Cognitive Assessment and saccades in community residents from Western China. Clin Neurophysiol 2024; 161:27-39. [PMID: 38432186 DOI: 10.1016/j.clinph.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/26/2024] [Accepted: 02/13/2024] [Indexed: 03/05/2024]
Abstract
OBJECTIVES This cross-sectional study sought to evaluate the effectiveness of the Montreal Cognitive Assessment (MoCA) and saccade in discerning the cognitive function levels among community populations characterized by diverse educational backgrounds. METHODS Data from 665 Western China individuals encompassed MoCA scores and saccade performance. The study examined how education level and age influenced these assessments and highlighted the contrasting abilities of these measures in detecting cognitive abnormalities. RESULTS The saccade model revealed a consistent cognitive impairment prevalence (15.5%) compared to previous clinical data (9.7% to 23.3%), while MoCA exhibited variable rates (25.1% to 52.8%). Notably, saccades and MoCA significantly diverged in detecting cognitive dysfunction. Additionally, education level had a greater impact on MoCA (effect size: 0.272) compared to saccades (0.024) affecting all MoCA sub-items, with age exerting a smaller influence on MoCA (0.037) compared to saccades (0.056). CONCLUSION Saccades are less susceptible to the influence of education level when compared to MoCA, making saccade a potentially more suitable cognitive screening tool for rural community populations. SIGNIFICANCE This study represents a pioneering approach by employing saccade detection within community populations to distinguish cognitive function status.
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Affiliation(s)
- Hua Li
- Research Center of Clinical Epidemiology and Evidence-Based Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Neurology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China; Joint Research Institute of Altitude Health, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Anjiao Peng
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Wanlin Lai
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Junru Wu
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Division of Psychology, Beijing Normal University, Beijing 100875, China.
| | - Shuming Ji
- Department of Clinical Research Management, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Dan Hu
- Department of Clinical Research Management, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Shujuan Chen
- Department of Clinical Research Management, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Chenxing Zhu
- Department of Clinical Research Management, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Qiulei Hong
- Department of Neurology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China
| | - Mingsha Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Division of Psychology, Beijing Normal University, Beijing 100875, China.
| | - Lei Chen
- Research Center of Clinical Epidemiology and Evidence-Based Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Neurology, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China; Joint Research Institute of Altitude Health, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China.
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2024 Alzheimer's disease facts and figures. Alzheimers Dement 2024; 20:3708-3821. [PMID: 38689398 PMCID: PMC11095490 DOI: 10.1002/alz.13809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
This article describes the public health impact of Alzheimer's disease (AD), including prevalence and incidence, mortality and morbidity, use and costs of care and the ramifications of AD for family caregivers, the dementia workforce and society. The Special Report discusses the larger health care system for older adults with cognitive issues, focusing on the role of caregivers and non-physician health care professionals. An estimated 6.9 million Americans age 65 and older are living with Alzheimer's dementia today. This number could grow to 13.8 million by 2060, barring the development of medical breakthroughs to prevent or cure AD. Official AD death certificates recorded 119,399 deaths from AD in 2021. In 2020 and 2021, when COVID-19 entered the ranks of the top ten causes of death, Alzheimer's was the seventh-leading cause of death in the United States. Official counts for more recent years are still being compiled. Alzheimer's remains the fifth-leading cause of death among Americans age 65 and older. Between 2000 and 2021, deaths from stroke, heart disease and HIV decreased, whereas reported deaths from AD increased more than 140%. More than 11 million family members and other unpaid caregivers provided an estimated 18.4 billion hours of care to people with Alzheimer's or other dementias in 2023. These figures reflect a decline in the number of caregivers compared with a decade earlier, as well as an increase in the amount of care provided by each remaining caregiver. Unpaid dementia caregiving was valued at $346.6 billion in 2023. Its costs, however, extend to unpaid caregivers' increased risk for emotional distress and negative mental and physical health outcomes. Members of the paid health care and broader community-based workforce are involved in diagnosing, treating and caring for people with dementia. However, the United States faces growing shortages across different segments of the dementia care workforce due to a combination of factors, including the absolute increase in the number of people living with dementia. Therefore, targeted programs and care delivery models will be needed to attract, better train and effectively deploy health care and community-based workers to provide dementia care. Average per-person Medicare payments for services to beneficiaries age 65 and older with AD or other dementias are almost three times as great as payments for beneficiaries without these conditions, and Medicaid payments are more than 22 times as great. Total payments in 2024 for health care, long-term care and hospice services for people age 65 and older with dementia are estimated to be $360 billion. The Special Report investigates how caregivers of older adults with cognitive issues interact with the health care system and examines the role non-physician health care professionals play in facilitating clinical care and access to community-based services and supports. It includes surveys of caregivers and health care workers, focusing on their experiences, challenges, awareness and perceptions of dementia care navigation.
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Yi N, Xing D, Xie J, Cheng Z. Different acupuncture and moxibustion therapies for mild cognitive impairment: a network meta-analysis. Arch Gerontol Geriatr 2024; 120:105328. [PMID: 38237376 DOI: 10.1016/j.archger.2024.105328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/02/2024] [Accepted: 01/09/2024] [Indexed: 03/10/2024]
Abstract
OBJECTIVE To investigate the effectiveness of different acupuncture and moxibustion therapies in improving cognitive function in patients with mild cognitive impairment (MCI) to determine the optimal approach. This study aims to provide insights into the treatment of MCI patients for future randomized controlled trials (RCTs) and clinical decision-making. MATERIALS AND METHODS RCT studies were retrieved from databases including PubMed, Embase, Cochrane Library, Web of Science, CNKI, WANFANG, VIP, and SinoMed. The Cochrane risk of bias tool was used to assess the risk of bias for eligible trials. Bayesian network meta-analysis was conducted using R4.2.3 software. RESULTS A total of 46 RCTs with 3641 participants were included. The network meta-analysis showed that acupoint pressing + cognitive training + auricular point sticking, massage + western medicine treatment, and electroacupuncture + western medicine treatment ranked first, second, and third in improving MMSE score, respectively. Acupoint pressing + cognitive training, cognitive training + scalp acupuncture, and cognitive training + moxibustion ranked first, second, and third in improving MoCA score, respectively. CONCLUSION This study showed that acupoint pressing alone or acupoint pressing + auricular point sticking may improve cognitive function in MCI patients and possibly be the most effective acupuncture interventions for the treatment of MCI.
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Affiliation(s)
- Na Yi
- School of Acupuncture and Massage, Liaoning University of Traditional Chinese Medicine, Shenyang Liaoning 110847, China
| | - Dajiang Xing
- Department of Neurology, Liaoning Provincial People's Hospital, Shenyang Liaoning 110015, China
| | - Jingru Xie
- Preventive Treatment of Disease Centre, The Second Affiliated Hospital of Liaoning University of Traditional Chinese Medicine, Shenyang Liaoning 110034, China
| | - Zedong Cheng
- Department of Science and Technology, Liaoning University of Traditional Chinese Medicine, Shenyang Liaoning 110847, China.
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Nakanishi M, Perry M, Bejjani R, Yamaguchi S, Usami S, van der Steen JT. Longitudinal associations between subjective cognitive impairment, pain and depressive symptoms in home-dwelling older adults: Modelling within-person effects. Int J Geriatr Psychiatry 2024; 39:e6103. [PMID: 38761159 DOI: 10.1002/gps.6103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 05/03/2024] [Indexed: 05/20/2024]
Abstract
OBJECTIVES Cognitive impairment, pain and depressive symptoms are common and interrelated factors in older adults. However, the directionality and specificity of their association remains unclarified. This study explored whether these factors prospectively increase reciprocal risk and examined the longitudinal association between these factors and quality of life (QoL). METHODS This study used longitudinal data from The Older Persons and Informal Caregivers Survey Minimal Data Set (TOPICS-MDS; the Netherlands). Older adults self-reported cognitive impairment, pain, depressive symptoms and QoL at baseline and after 6 and 12 months of follow-up. The Random Intercept Cross-Lagged Panel Model was used to assess the prospective association between the three factors, while a multilevel linear regression analysis in a two-level random intercept model was used to examine the longitudinal associations between the three factors and QoL at the within-person level. RESULTS The data of 11,582 home-dwelling older adults with or without subjective cognitive impairment were analysed. At the within-person level, pain at 6 months was associated with subsequent depressive symptoms (β = 0.04, p = 0.024). The reverse association from depression to pain, and longitudinal associations between pain and subjective cognitive impairment and between depressive symptoms and subjective cognitive impairment were non-significant. Pain, depressive symptoms and subjective cognitive impairment showed a significant association with poor QoL 6 months later. CONCLUSIONS A directional relationship was observed from pain to depressive symptoms. Pain reduction holds a potential benefit in the prevention of depressive symptoms, ultimately optimising the QoL of older adults.
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Affiliation(s)
- Miharu Nakanishi
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
- Department of Psychiatric Nursing, Tohoku University Graduate School of Medicine, Sendai-shi, Miyagi, Japan
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Marieke Perry
- Radboudumc Alzheimer Center, Radboud university medical center, Nijmegen, the Netherlands
- Department of Geriatric Medicine, Radboud university medical center, Nijmegen, the Netherlands
- Department of Primary and Community Care, Radboud university medical center, Nijmegen, the Netherlands
| | - Rachele Bejjani
- Hariri School of Nursing, American University of Beirut, Beirut, Lebanon
| | - Satoshi Yamaguchi
- Research Center for Social Science & Medicine, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Satoshi Usami
- Graduate School of Education, The University of Tokyo, Tokyo, Japan
| | - Jenny T van der Steen
- Department of Public Health and Primary Care, Leiden University Medical Center, Leiden, the Netherlands
- Radboudumc Alzheimer Center, Radboud university medical center, Nijmegen, the Netherlands
- Department of Primary and Community Care, Radboud university medical center, Nijmegen, the Netherlands
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Kelley A, Addie S, Carrington-Lawrence S, Ferrucci L, Jones P, Hadley E, Haim T, Harper J, Kahana S, Kelley M, Kohanski R, Masliah E, McConnell C, Morrison S, Nielsen L, Santora K, Hodes R. National Institute on Aging's 50th anniversary: Advancing aging research and the health and well-being of older adults. J Am Geriatr Soc 2024; 72:1574-1582. [PMID: 38445895 PMCID: PMC11090751 DOI: 10.1111/jgs.18837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/26/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024]
Abstract
The National Institute on Aging (NIA), part of the National Institutes of Health (NIH), was founded in 1974 to support and conduct research on aging and the health and well-being of older adults. Fifty years ago, the concept of studying aging generated much skepticism. Early NIA-funded research findings helped establish the great value of aging research and provided the foundation for significant science advances that have improved our understanding of the aging process, diseases and conditions associated with aging, and the effects of health inequities, as well as the need to promote healthy aging lifestyles. Today, we celebrate the many important contributions to aging research made possible by NIA, as well as opportunities to continue to make meaningful progress. NIA emphasizes that the broad aging research community must continue to increase and expand our collective efforts to recruit and train a diverse next generation of aging researchers.
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Affiliation(s)
- Amy Kelley
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Siobhan Addie
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Luigi Ferrucci
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Patricia Jones
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Evan Hadley
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Todd Haim
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Jessica Harper
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Shoshana Kahana
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Melinda Kelley
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Ronald Kohanski
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Eliezer Masliah
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Cindy McConnell
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Stephanie Morrison
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Lisbeth Nielsen
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Kenneth Santora
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
| | - Richard Hodes
- National Institute on Aging, National Institutes of Health, Bethesda, Maryland, USA
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Reuben DB, Kremen S, Maust DT. Dementia Prevention and Treatment: A Narrative Review. JAMA Intern Med 2024; 184:563-572. [PMID: 38436963 DOI: 10.1001/jamainternmed.2023.8522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Importance Dementia affects 10% of those 65 years or older and 35% of those 90 years or older, often with profound cognitive, behavioral, and functional consequences. As the baby boomers and subsequent generations age, effective preventive and treatment strategies will assume increasing importance. Observations Preventive measures are aimed at modifiable risk factors, many of which have been identified. To date, no randomized clinical trial data conclusively confirm that interventions of any kind can prevent dementia. Nevertheless, addressing risk factors may have other health benefits and should be considered. Alzheimer disease can be treated with cholinesterase inhibitors, memantine, and antiamyloid immunomodulators, with the last modestly slowing cognitive and functional decline in people with mild cognitive impairment or mild dementia due to Alzheimer disease. Cholinesterase inhibitors and memantine may benefit persons with other types of dementia, including dementia with Lewy bodies, Parkinson disease dementia, vascular dementia, and dementia due to traumatic brain injury. Behavioral and psychological symptoms of dementia are best treated with nonpharmacologic management, including identifying and mitigating the underlying causes and individually tailored behavioral approaches. Psychotropic medications have minimal evidence of efficacy for treating these symptoms and are associated with increased mortality and clinically meaningful risks of falls and cognitive decline. Several emerging prevention and treatment strategies hold promise to improve dementia care in the future. Conclusions and Relevance Although current prevention and treatment approaches to dementia have been less than optimally successful, substantial investments in dementia research will undoubtedly provide new answers to reducing the burden of dementia worldwide.
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Affiliation(s)
- David B Reuben
- Multicampus Program in Geriatric Medicine and Gerontology, David Geffen School of Medicine, University of California, Los Angeles
| | - Sarah Kremen
- Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, California
- Jona Goldrich Center for Alzheimer's and Memory Disorders, Cedars-Sinai Medical Center, Los Angeles, California
| | - Donovan T Maust
- Department of Psychiatry, University of Michigan, Ann Arbor
- Center for Clinical Management Research, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
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Oshnouei S, Safaralizade M, Eslamlou NF, Heidari M. Uncovering the extent of dementia prevalence in Iran: a comprehensive systematic review and meta-analysis. BMC Public Health 2024; 24:1168. [PMID: 38664651 PMCID: PMC11046958 DOI: 10.1186/s12889-024-18415-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Dementia is one of the major causes of disability and dependency among older people worldwide. The formation of an aging population in Iran can be associated with societal problems, including age-related disorders such as dementia. This study aimed to estimate the prevalence of dementia& Alzheimer disease in adults aged 60 years or older and it's its geographical distribution in Iran. METHODS A systematic review and meta-analysis study included articles published in both English and Persian languages and utilized various databases including: Google Scholar, PubMed, Web of Science, Magiran, and thesis database of medicine universities up to December 2022. The pooled prevalence was calculated using random effects models. The prevalence was reported separately for different geographical locations and types of area sampling, and age adjustment was performed for the selected studies. All statistical analyses were conducted using metaprop package in STATA version 17. The I2 statistic was applied to assess heterogeneity. RESULTS The meta-analysis considered nine relevant studies that were carried out up to 2023 in Iran. The study found that the prevalence of dementia in central and east counties was estimated to be 0.14 (95% CI; 0.04-0.31), while in western counties, the prevalence was estimated to be 0.1 (95%CI; 0.01-0.27). The estimated overall crude prevalence of dementia was estimated at 0.14 (95% CI; 0.03-0.31). Estimated prevalence-based health centers sampling and hospital-based studies were 0.02 (95% CI; 0.02-0.03), 0.05 (95% CI 0.06-0.11), respectively. One study used nursing home sampling as the sampling method, and the estimated prevalence was 0.43 (95%CI 0.38-0.49). CONCLUSION This is the first systematic review and meta-analysis of the prevalence of dementia's disease up to 2023 in Iran. The estimated overall prevalence of dementia is lower than the reported prevalence in European countries and similar to other Asian countries.
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Affiliation(s)
- Sima Oshnouei
- Phd Candidate of Epidemiology, School of Public Health Iran, University of Medical Sciences, Tehran, Iran
| | - Mahin Safaralizade
- Phd Candidate of Information Science & Knowledge - Data Recovery, Urmia University of Medical Sciences, Urmia, Iran
| | - Nazila Farrokh Eslamlou
- Phd of English Language Teaching, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mohammad Heidari
- Phd of Epidemiology, Social Determinants of Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran.
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Tang H, Li Q, Du C. The association between waist-to-height ratio and cognitive function in older adults. Nutr Neurosci 2024:1-8. [PMID: 38635859 DOI: 10.1080/1028415x.2024.2339729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
OBJECTIVES The waist-to-height ratio (WHtR) is a simple, practical, and effective tool used to assess central obesity. Despite its usefulness, few studies have investigated the association between WHtR and cognitive function among older adults in the United States. This study aims to investigate the associations between WHtR and cognitive function. METHODS The study sample comprised adults who participated in the National Health and Nutrition Examination Survey (NHANES) between 2011 and 2014. WHtR was calculated from measured waist circumference and height. Cognitive function was assessed using the digit symbol substitution test. A weighted multiple linear regression analysis was performed to evaluate the association between WHtR and cognitive function, with smooth curve fitting applied to detect non-linearities. RESULTS Our analysis included 1709 participants over the age of 65. After adjusting for potential confounders, WHtR was found to have a negative association with cognitive function (β = -36.91, 95% CI: -54.54 to -19.29, P < 0.001). Subgroup analyzes stratified by sex and race showed that the negative correlation of WHtR with cognitive function remained in both men and women, as well as in non-Hispanic white and other races. Among women, the association between WHtR and cognitive function followed an inverted U-shaped curve, with an inflection point of 0.68. CONCLUSION This study provides evidence of a negative association between WHtR and cognitive function in older adults. These findings suggest that in advanced age, central obesity may have negative implications for cognitive function.
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Affiliation(s)
- Huajuan Tang
- Department of Neurology, 363 Hospital, Chengdu, People's Republic of China
| | - Qian Li
- Department of Neurology, 363 Hospital, Chengdu, People's Republic of China
| | - Chuan Du
- Department of Neurosurgery, Affiliated Hospital of Chengdu University, Chengdu, People's Republic of China
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Adkins-Jackson PB, Kim B, Higgins Tejera C, Ford TN, Gobaud AN, Sherman-Wilkins KJ, Turney IC, Avila-Rieger JF, Sims KD, Okoye SM, Belsky DW, Hill-Jarrett TG, Samuel L, Solomon G, Cleeve JH, Gee G, Thorpe RJ, Crews DC, Hardeman RR, Bailey ZD, Szanton SL, Manly JJ. "Hang Ups, Let Downs, Bad Breaks, Setbacks": Impact of Structural Socioeconomic Racism and Resilience on Cognitive Change Over Time for Persons Racialized as Black. Health Equity 2024; 8:254-268. [PMID: 38665381 PMCID: PMC11043623 DOI: 10.1089/heq.2023.0151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2023] [Indexed: 04/28/2024] Open
Abstract
Introduction Older adults racialized as Black experience higher rates of dementia than those racialized as White. Structural racism produces socioeconomic challenges, described by artist Marvin Gaye as "hang ups, let downs, bad breaks, setbacks" that likely contribute to dementia disparities. Robust dementia literature suggests socioeconomic factors may also be key resiliencies. Methods We linked state-level data reflecting the racialized landscape of economic opportunity across the 20th Century from the U.S. Census (1930-2010) with individual-level data on cognitive outcomes from the U.S. Health and Retirement Study participants racialized as Black. A purposive sample of participants born after the Brown v. Board ruling (born 1954-59) were selected who completed the modified Telephone Interview for Cognitive Status between 2010 and 2020 (N=1381). We tested associations of exposure to structural racism and resilience before birth, and during childhood, young-adulthood, and midlife with cognitive trajectories in mid-late life using mixed-effects regression models. Results Older adults born in places with higher state-level structural socioeconomic racism experienced a more rapid cognitive decline in later life compared to those with lower levels of exposure. In addition, participants born in places with higher levels of state-level structural socioeconomic resilience experienced slower cognitive change over time than their counterparts. Discussion These findings reveal the impact of racist U.S. policies enacted in the past that influence cognitive health over time and dementia risk later in life.
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Affiliation(s)
- Paris B. Adkins-Jackson
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
- Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Boeun Kim
- School of Nursing, Johns Hopkins University, Baltimore, Maryland, USA
| | - César Higgins Tejera
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Tiffany N. Ford
- Division of Community Health Sciences, School of Public Health, University of Illinois Chicago, Chicago, Illinois, USA
- The Brookings Institution, Washington, District of Columbia, USA
| | - Ariana N. Gobaud
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | | | - Indira C. Turney
- Department of Neurology, Vagelos College of Physicians & Surgeons, Taub Institute for Research on Alzheimer's Disease & The Aging Brain, Columbia University, New York, New York, USA
| | - Justina F. Avila-Rieger
- Department of Neurology, Vagelos College of Physicians & Surgeons, Taub Institute for Research on Alzheimer's Disease & The Aging Brain, Columbia University, New York, New York, USA
| | - Kendra D. Sims
- Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, California, USA
| | - Safiyyah M. Okoye
- Department of Graduate Nursing, College of Nursing and Health Professions and Dornsife School of Public Health, Drexel University, Philadelphia, Pennsylvania, USA
- Department of Health Management and Policy, College of Nursing and Health Professions and Dornsife School of Public Health, Drexel University, Philadelphia, Pennsylvania, USA
| | - Daniel W. Belsky
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
- Butler Columbia Aging Center, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Tanisha G. Hill-Jarrett
- Department of Neurology, Memory and Aging Center, University of California San Francisco, San Francisco, California, USA
| | - Laura Samuel
- School of Nursing, Johns Hopkins University, Baltimore, Maryland, USA
| | - Gabriella Solomon
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Jack H. Cleeve
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Gilbert Gee
- Department of Community Health Sciences, University of California at Los Angeles, Los Angeles, California, USA
| | - Roland J. Thorpe
- Alzheimer's Disease Resource Center for Minority Aging Research, Johns Hopkins University, Baltimore, Maryland, USA
| | - Deidra C. Crews
- School of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
| | - Rachel R. Hardeman
- Center for Antiracism Research for Health Equity, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA
| | - Zinzi D. Bailey
- Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida, USA
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Sarah L. Szanton
- School of Nursing, Johns Hopkins University, Baltimore, Maryland, USA
| | - Jennifer J. Manly
- Department of Neurology, Vagelos College of Physicians & Surgeons, Taub Institute for Research on Alzheimer's Disease & The Aging Brain, Columbia University, New York, New York, USA
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Cummings J, Zhou Y, Lee G, Zhong K, Fonseca J, Cheng F. Alzheimer's disease drug development pipeline: 2024. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2024; 10:e12465. [PMID: 38659717 PMCID: PMC11040692 DOI: 10.1002/trc2.12465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 04/26/2024]
Abstract
INTRODUCTION New therapies to prevent or delay the onset of symptoms, slow progression, or improve cognitive and behavioral symptoms of Alzheimer's disease (AD) are needed. METHODS We interrogated clinicaltrials.gov including all clinical trials assessing pharmaceutical therapies for AD active in on January 1, 2024. We used the Common Alzheimer's Disease Research Ontology (CADRO) to classify the targets of therapies in the pipeline. RESULTS There are 164 trials assessing 127 drugs across the 2024 AD pipeline. There were 48 trials in Phase 3 testing 32 drugs, 90 trials in Phase 2 assessing 81 drugs, and 26 trials in Phase 1 testing 25 agents. Of the 164 trials, 34% (N = 56) assess disease-modifying biological agents, 41% (N = 68) test disease-modifying small molecule drugs, 10% (N = 17) evaluate cognitive enhancing agents, and 14% (N = 23) test drugs for the treatment of neuropsychiatric symptoms. DISCUSSION Compared to the 2023 pipeline, there are fewer trials (164 vs. 187), fewer drugs (127 vs. 141), fewer new chemical entities (88 vs. 101), and a similar number of repurposed agents (39 vs. 40). Highlights In the 2024 Alzheimer's disease drug development pipeline, there are 164 clinical trials assessing 127 drugs.The 2024 Alzheimer's disease drug development pipeline has contracted compared to the 2023 Alzheimer pipeline with fewer trials, fewer drugs, and fewer new chemical entities.Drugs in the Alzheimer's disease drug development pipeline target a wide array of targets; the most common processes targeted include neurotransmitter receptors, inflammation, amyloid, and synaptic plasticity.The total development time for a potential Alzheimer's disease therapy to progress from nonclinical studies to FDA review is approximately 13 years.
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Affiliation(s)
- Jeffrey Cummings
- Chambers‐Grundy Center for Transformative NeuroscienceDepartment of Brain HealthSchool of Integrated Health SciencesUniversity of Nevada, Las Vegas (UNLV)Las VegasNevadaUSA
| | - Yadi Zhou
- Genomic Medicine InstituteLerner Research Institute, Cleveland ClinicClevelandOhioUSA
| | - Garam Lee
- Chambers‐Grundy Center for Transformative NeuroscienceDepartment of Brain HealthSchool of Integrated Health SciencesUniversity of Nevada, Las Vegas (UNLV)Las VegasNevadaUSA
| | - Kate Zhong
- Chambers‐Grundy Center for Transformative NeuroscienceDepartment of Brain HealthSchool of Integrated Health SciencesUniversity of Nevada, Las Vegas (UNLV)Las VegasNevadaUSA
| | - Jorge Fonseca
- Howard R Hughes College of EngineeringDepartment of Computer ScienceUniversity of Nevada, Las Vegas (UNLV)Las VegasNevadaUSA
| | - Feixiong Cheng
- Genomic Medicine InstituteLerner Research Institute, Cleveland ClinicClevelandOhioUSA
- Department of Molecular MedicineCleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOhioUSA
- Case Comprehensive Cancer CenterCase Western Reserve University School of MedicineClevelandOhioUSA
- Cleveland Clinic Genome CenterLerner Research Institute, Cleveland ClinicClevelandOhioUSA
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Shaikh KT, Bolton K, Shaikh U, Troyer AK, Rich JB, Vandermorris S. Evaluating functional abilities within the context of memory assessment: A practice survey of neuropsychologists. Clin Neuropsychol 2024; 38:557-587. [PMID: 37649186 DOI: 10.1080/13854046.2023.2249178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 08/12/2023] [Indexed: 09/01/2023]
Abstract
Objective: Functioning in daily life is an important consideration when differentiating between individuals with normal cognition, mild neurocognitive disorder, and major neurocognitive disorder. Despite this, there is no gold standard measurement approach for assessing functional abilities and few guidelines on how to do so. The objective of this study was to examine neuropsychologists' practices regarding the assessment of functional abilities across the spectrum of memory ability. Method: A total of 278 psychologists who routinely conduct neuropsychological assessments completed an online survey (estimated 15% response rate) querying their practices and perspectives with respect to the assessment of functional abilities. Results: Respondents identified that changes to several components of daily functioning, including activities of daily living, were important when evaluating functional abilities. Respondents reported utilizing a variety of instruments to assess functioning, with an overwhelming majority indicating the use of semi-structured interviews. Although most respondents are satisfied with existing tools, a quarter of respondents felt strongly that there was a need for more instruments of everyday functioning. Respondents further indicated that their recommendations to patients, particularly regarding compensatory strategies and follow-up with other professionals, were informed by results of their functional assessment. Conclusions: Overall, our survey results indicate that neuropsychologists perceive multiple factors of daily life to be important considerations when evaluating functioning, use a variety of techniques to assess functioning, and perceive a need for more measures of functional abilities.
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Affiliation(s)
- Komal T Shaikh
- Department of Psychology, York University, Toronto, Canada
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
| | - Kathryn Bolton
- Department of Psychology, York University, Toronto, Canada
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
- Department of Psychology, Toronto Metropolitan University
| | - Umar Shaikh
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
| | - Angela K Troyer
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
- Department of Psychology, University of Toronto, Toronto, Canada
| | - Jill B Rich
- Department of Psychology, York University, Toronto, Canada
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
| | - Susan Vandermorris
- Neuropsychology and Cognitive Health Program, Baycrest Health Sciences, Toronto, Canada
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Hinton L, Tran D, Peak K, Meyer OL, Quiñones AR. Mapping racial and ethnic healthcare disparities for persons living with dementia: A scoping review. Alzheimers Dement 2024; 20:3000-3020. [PMID: 38265164 PMCID: PMC11032576 DOI: 10.1002/alz.13612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/25/2023] [Accepted: 11/25/2023] [Indexed: 01/25/2024]
Abstract
INTRODUCTION We set out to map evidence of disparities in Alzheimer's disease and Alzheimer's disease related dementias healthcare, including issues of access, quality, and outcomes for racial/ethnic minoritized persons living with dementia (PLWD) and family caregivers. METHODS We conducted a scoping review of the literature published from 2000 to 2022 in PubMed, PsycINFO, and CINAHL. The inclusion criteria were: (1) focused on PLWD and/or family caregivers, (2) examined disparities or differences in healthcare, (3) were conducted in the United States, (4) compared two or more racial/ethnic groups, and (5) reported quantitative or qualitative findings. RESULTS Key findings include accumulating evidence that minoritized populations are less likely to receive an accurate and timely diagnosis, be prescribed anti-dementia medications, and use hospice care, and more likely to have a higher risk of hospitalization and receive more aggressive life-sustaining treatment at the end-of-life. DISCUSSION Future studies need to examine underlying processes and develop interventions to reduce disparities while also being more broadly inclusive of diverse populations.
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Affiliation(s)
- Ladson Hinton
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Duyen Tran
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Kate Peak
- Department of Family MedicineOregon Health & Science University (OHSU)PortlandOregonUSA
| | - Oanh L. Meyer
- School of MedicineUniversity of CaliforniaDavisSacramentoCaliforniaUSA
| | - Ana R. Quiñones
- Department of Family MedicineOregon Health & Science University (OHSU)PortlandOregonUSA
- OHSU‐PSU School of Public HealthOregon Health & Science UniversityPortlandOregonUSA
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Miller EL, Okour A. Pain Management Among the Cognitively Impaired. Pain Manag Nurs 2024; 25:101-103. [PMID: 38616057 DOI: 10.1016/j.pmn.2024.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
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Klee M, Langa KM, Leist AK. Performance of probable dementia classification in a European multi-country survey. Sci Rep 2024; 14:6657. [PMID: 38509130 PMCID: PMC10954769 DOI: 10.1038/s41598-024-56734-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/11/2024] [Indexed: 03/22/2024] Open
Abstract
Feasibility constraints limit availability of validated cognitive assessments in observational studies. Algorithm-based identification of 'probable dementia' is thus needed, but no algorithm developed so far has been applied in the European context. The present study sought to explore the usefulness of the Langa-Weir (LW) algorithm to detect 'probable dementia' while accounting for country-level variation in prevalence and potential underreporting of dementia. Data from 56 622 respondents of the Survey of Health, Ageing and Retirement in Europe (SHARE, 2017) aged 60 years and older with non-missing data were analyzed. Performance of LW was compared to a logistic regression, random forest and XGBoost classifier. Population-level 'probable dementia' prevalence was compared to estimates based on data from the Organisation for Economic Co-operation and Development. As such, application of the prevalence-specific LW algorithm, based on recall and limitations in instrumental activities of daily living, reduced underreporting from 61.0 (95% CI, 53.3-68.7%) to 30.4% (95% CI, 19.3-41.4%), outperforming tested machine learning algorithms. Performance in other domains of health and cognitive function was similar for participants classified 'probable dementia' and those self-reporting physician-diagnosis of dementia. Dementia classification algorithms can be adapted to cross-national cohort surveys such as SHARE and help reduce underreporting of dementia with a minimal predictor set.
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Affiliation(s)
- Matthias Klee
- Institute for Research on Socio-Economic Inequality, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Kenneth M Langa
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Anja K Leist
- Institute for Research on Socio-Economic Inequality, University of Luxembourg, Esch-sur-Alzette, Luxembourg.
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Owens CD, Bonin Pinto C, Detwiler S, Olay L, Pinaffi-Langley ACDC, Mukli P, Peterfi A, Szarvas Z, James JA, Galvan V, Tarantini S, Csiszar A, Ungvari Z, Kirkpatrick AC, Prodan CI, Yabluchanskiy A. Neurovascular coupling impairment as a mechanism for cognitive deficits in COVID-19. Brain Commun 2024; 6:fcae080. [PMID: 38495306 PMCID: PMC10943572 DOI: 10.1093/braincomms/fcae080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/08/2024] [Accepted: 03/05/2024] [Indexed: 03/19/2024] Open
Abstract
Components that comprise our brain parenchymal and cerebrovascular structures provide a homeostatic environment for proper neuronal function to ensure normal cognition. Cerebral insults (e.g. ischaemia, microbleeds and infection) alter cellular structures and physiologic processes within the neurovascular unit and contribute to cognitive dysfunction. COVID-19 has posed significant complications during acute and convalescent stages in multiple organ systems, including the brain. Cognitive impairment is a prevalent complication in COVID-19 patients, irrespective of severity of acute SARS-CoV-2 infection. Moreover, overwhelming evidence from in vitro, preclinical and clinical studies has reported SARS-CoV-2-induced pathologies in components of the neurovascular unit that are associated with cognitive impairment. Neurovascular unit disruption alters the neurovascular coupling response, a critical mechanism that regulates cerebromicrovascular blood flow to meet the energetic demands of locally active neurons. Normal cognitive processing is achieved through the neurovascular coupling response and involves the coordinated action of brain parenchymal cells (i.e. neurons and glia) and cerebrovascular cell types (i.e. endothelia, smooth muscle cells and pericytes). However, current work on COVID-19-induced cognitive impairment has yet to investigate disruption of neurovascular coupling as a causal factor. Hence, in this review, we aim to describe SARS-CoV-2's effects on the neurovascular unit and how they can impact neurovascular coupling and contribute to cognitive decline in acute and convalescent stages of the disease. Additionally, we explore potential therapeutic interventions to mitigate COVID-19-induced cognitive impairment. Given the great impact of cognitive impairment associated with COVID-19 on both individuals and public health, the necessity for a coordinated effort from fundamental scientific research to clinical application becomes imperative. This integrated endeavour is crucial for mitigating the cognitive deficits induced by COVID-19 and its subsequent burden in this especially vulnerable population.
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Affiliation(s)
- Cameron D Owens
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Camila Bonin Pinto
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Sam Detwiler
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Lauren Olay
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Ana Clara da C Pinaffi-Langley
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Peter Mukli
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
| | - Anna Peterfi
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
| | - Zsofia Szarvas
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
| | - Judith A James
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Arthritis & Clinical Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Department of Internal Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Veronica Galvan
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
| | - Stefano Tarantini
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
- The Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Anna Csiszar
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
| | - Zoltan Ungvari
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
- Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Angelia C Kirkpatrick
- Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
- Cardiovascular Section, Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
| | - Calin I Prodan
- Veterans Affairs Medical Center, Oklahoma City, OK 73104, USA
- Department of Neurology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Andriy Yabluchanskiy
- Oklahoma Center for Geroscience and Healthy Brain Aging, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73117, USA
- Vascular Cognitive Impairment, Neurodegeneration and Healthy Brain Aging Program, Department of Neurosurgery, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- International Training Program in Geroscience, Doctoral School of Basic and Translational Medicine/Departments of Public Health, Translational Medicine and Physiology, Semmelweis University, Budapest, 1089, Hungary
- Department of Health Promotion Sciences, College of Public Health, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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50
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Bonomi S, Lu R, Schindler SE, Bui Q, Lah JJ, Wolk D, Gleason CE, Sperling R, Roberson ED, Levey AI, Shaw L, Van Hulle C, Benzinger T, Adams M, Manzanares C, Qiu D, Hassenstab J, Moulder KL, Balls-Berry JE, Johnson K, Johnson SC, Murchison CF, Luo J, Gremminger E, Agboola F, Grant EA, Hornbeck R, Massoumzadeh P, Keefe S, Dierker D, Gray JD, Henson RL, Streitz M, Mechanic-Hamilton D, Morris JC, Xiong C. Relationships of Cognitive Measures with Cerebrospinal Fluid but Not Imaging Biomarkers of Alzheimer Disease Vary between Black and White Individuals. Ann Neurol 2024; 95:495-506. [PMID: 38038976 PMCID: PMC10922199 DOI: 10.1002/ana.26838] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023]
Abstract
OBJECTIVE Biomarkers of Alzheimer disease vary between groups of self-identified Black and White individuals in some studies. This study examined whether the relationships between biomarkers or between biomarkers and cognitive measures varied by racialized groups. METHODS Cerebrospinal fluid (CSF), amyloid positron emission tomography (PET), and magnetic resonance imaging measures were harmonized across four studies of memory and aging. Spearman correlations between biomarkers and between biomarkers and cognitive measures were calculated within each racialized group, then compared between groups by standard normal tests after Fisher's Z-transformations. RESULTS The harmonized dataset included at least one biomarker measurement from 495 Black and 2,600 White participants. The mean age was similar between racialized groups. However, Black participants were less likely to have cognitive impairment (28% vs 36%) and had less abnormality of some CSF biomarkers including CSF Aβ42/40, total tau, p-tau181, and neurofilament light. CSF Aβ42/40 was negatively correlated with total tau and p-tau181 in both groups, but at a smaller magnitude in Black individuals. CSF Aβ42/40, total tau, and p-tau181 had weaker correlations with cognitive measures, especially episodic memory, in Black than White participants. Correlations of amyloid measures between CSF (Aβ42/40, Aβ42) and PET imaging were also weaker in Black than White participants. Importantly, no differences based on race were found in correlations between different imaging biomarkers, or in correlations between imaging biomarkers and cognitive measures. INTERPRETATION Relationships between CSF biomarkers but not imaging biomarkers varied by racialized groups. Imaging biomarkers performed more consistently across racialized groups in associations with cognitive measures. ANN NEUROL 2024;95:495-506.
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Affiliation(s)
- Samuele Bonomi
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Ruijin Lu
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Suzanne E. Schindler
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Quoc Bui
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - James J. Lah
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
- Goizueta Alzheimer’s Disease Research Center, Emory University, Atlanta, GA
| | - David Wolk
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Carey E. Gleason
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Wisconsin Alzheimer’s Disease Research Center, Madison, Wisconsin, USA
- Geriatric Research, Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Reisa Sperling
- Department of Neurology, Center for Alzheimer Research and Treatment, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Erik D. Roberson
- Center for Neurodegeneration and Experimental Therapeutics, Alzheimer’s Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Allan I. Levey
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
- Goizueta Alzheimer’s Disease Research Center, Emory University, Atlanta, GA
| | - Leslie Shaw
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Carol Van Hulle
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Wisconsin Alzheimer’s Disease Research Center, Madison, Wisconsin, USA
| | - Tammie Benzinger
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Morgann Adams
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Cecelia Manzanares
- Department of Neurology, Emory University School of Medicine, Atlanta, Georgia, USA
- Goizueta Alzheimer’s Disease Research Center, Emory University, Atlanta, GA
| | - Deqiang Qiu
- Goizueta Alzheimer’s Disease Research Center, Emory University, Atlanta, GA
| | - Jason Hassenstab
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Krista L. Moulder
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Joyce E. Balls-Berry
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Keith Johnson
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Sterling C. Johnson
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
- Wisconsin Alzheimer’s Disease Research Center, Madison, Wisconsin, USA
- Geriatric Research, Education and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Charles F. Murchison
- Center for Neurodegeneration and Experimental Therapeutics, Alzheimer’s Disease Center, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jingqin Luo
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Emily Gremminger
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Folasade Agboola
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Elizabeth A. Grant
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Russ Hornbeck
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Parinaz Massoumzadeh
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Sarah Keefe
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Donna Dierker
- Mallinckrodt Institute of Radiology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Julia D. Gray
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Rachel L. Henson
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Marissa Streitz
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Dawn Mechanic-Hamilton
- Department of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - John C. Morris
- Department of Neurology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Chengjie Xiong
- Division of Biostatistics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Knight Alzheimer Disease Research Center, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
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