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1.
BMC Geriatr ; 23(1): 670, 2023 10 17.
Artículo en Inglés | MEDLINE | ID: mdl-37848825

RESUMEN

BACKGROUND: Everyday memory problems are believed to increase with age, leading many researchers to focus on older ages when examining reports of memory lapses. However, real world memory lapses are ubiquitous across the adult lifespan, though less is known about the types of problems and their impacts at younger ages. The current study examined occurrence and impacts of memory lapses using daily diaries in a broad age range and whether characteristics of lapses varied across age, gender, or education level. METHODS: Using an 8-day daily diary protocol, 2,018 individuals (ages 25-91) provided reports of their experiences of two types of daily memory lapses (retrospective and prospective) as well as the impact those lapses had on their emotional and functional well-being that day. Using multilevel modeling, we examined the likelihood of reporting memory lapses and their impacts on daily life and whether these depended on age, gender, or education level. RESULTS: Participants reported lapses on approximately 40% of days; retrospective memory lapses were significantly more likely than prospective lapses. Older ages and higher education level were related to greater likelihood of reporting retrospective lapses. Women (compared to men) were more likely to report prospective memory lapses. Women also tended to report greater impacts of their memory lapses. Lower education levels were related to greater impacts of memory lapses compared to higher education levels. Interestingly, age was not related to impacts of lapses. DISCUSSION: Our results indicate that memory lapses are common across the lifespan and that those individuals more likely to report lapses are not necessarily those that experience the greatest impacts of those lapses on daily life. Additional work is needed to understand the daily experience of memory lapses and how they differentially affect individuals regardless of age, gender, and education. CONCLUSIONS: Memory lapses are an important aspect of daily life across the lifespan and require measurement in an individual's real-world environments. Better measurement of these experiences will allow the development of more sensitive measures of changes in cognitive functioning that may impact an individual's ability to live independently.


Asunto(s)
Individualidad , Longevidad , Masculino , Humanos , Femenino , Estudios Retrospectivos , Trastornos de la Memoria/diagnóstico , Trastornos de la Memoria/epidemiología , Trastornos de la Memoria/psicología , Cognición
2.
Innov Aging ; 7(6): igad056, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37497342

RESUMEN

Background and Objectives: Subjective cognitive decline (SCD) may be indicative of future objective cognitive decline. However, factors other than objective cognitive performance may influence SCD. This review addresses whether family history or close, nonfamilial exposure to dementia is associated with self-reported SCD. Research Design and Methods: Searches were conducted in PubMed, PsycINFO, Web of Science, and the Dissertations and Theses database. Eligible articles included measures of self-reported cognition for community-dwelling middle-aged or older adults (40+ years) not diagnosed with dementia, and who had either a family history of dementia, a family member, spouse, or close friend with dementia. The quality of evidence was evaluated using the LEGEND Appraisal Tool. Evidence was synthesized narratively. Results: A total of 32 articles were included, with 28 rated as good quality. Across studies, the relationship between dementia exposure and SCD was inconsistent. A significant association between exposure and SCD was found in 6 studies; however, 17 reviewed studies found no evidence of a relationship. The remaining 9 studies found mixed associations. Modifying factors that could potentially influence these associations were exploratorily identified among studies to provide context to our results. These factors included dementia worry, emotional closeness, and measurement sensitivity. Discussion and Implications: Findings of this review suggest that both first-degree relatives and spouses of persons with dementia may have an increased likelihood of reporting SCD, although the current heterogeneity in definitions of exposure to dementia and SCD may influence these findings. In addition to the relationship between dementia exposure and SCD, future research should examine potential modifiers, including meaning attributed to exposure, as identifying how these perceptions affect cognition may promote early intervention.

3.
BMC Geriatr ; 23(1): 342, 2023 05 31.
Artículo en Inglés | MEDLINE | ID: mdl-37259029

RESUMEN

BACKGROUND: Early identification of cognitive impairment is an important part of health promotion in aging. However, many older adults do not seek help for cognitive problems until their ability to function independently is substantially impacted. The purpose of this descriptive study was to explore older adults' experiences with patient-provider communication specific to cognition as well as compare barriers and facilitators between those with and without memory concerns. METHODS: We conducted an online survey with individuals aged 65 + years (n = 409; mean age = 71.4(4.73); 54% female; 79% non-Hispanic White), purposively sampled to include those with and without memory concerns. Questionnaires included measures of subjective memory decline (SMD), memory concerns, past healthcare experiences, as well as open-ended questions regarding patient-provider communication about cognition. Content analysis was used to code open-ended responses. Logistic regression was used to examine differences in facilitators and barriers to communication among three groups: no SMD (n = 130), SMD without memory concerns (n = 143), and SMD with memory concerns (n = 136). RESULTS: Only 16.6% of participants reported discussing cognition with a healthcare provider. Of the remaining 83.4%, approximately two-thirds would be open to such discussions in certain circumstances, most frequently if they had worsening memory problems. Over half of participants reported that their provider had never offered cognitive testing. Compared to the no SMD and SMD without memory concerns groups, participants reporting SMD with memory concerns were more likely to: (1) discuss cognition if their healthcare provider initiated the conversation, and (2) avoid discussions of cognitive problems due to fears of losing independence. CONCLUSIONS: We found that most participants, including those reporting SMD with memory concerns, had never discussed cognition with their healthcare providers. Patient-reported barriers and facilitators to communication about cognition differed in several areas based on SMD status and the presence or absence of memory concerns. Consideration of these differences can guide future efforts to improve early identification of subtle cognitive changes that would benefit from further monitoring or intervention.


Asunto(s)
Cognición , Disfunción Cognitiva , Humanos , Femenino , Anciano , Masculino , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/epidemiología , Disfunción Cognitiva/terapia , Envejecimiento , Comunicación , Encuestas y Cuestionarios
4.
Prev Sci ; 24(5): 901-910, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-35614369

RESUMEN

Negative perceptions of aging and older adulthood, including the idealization of youth, are common in the United States. Past work has found that holding negative perceptions of aging is closely associated with poor mental and physical health consequences, yet few studies have examined how these perceptions impact day-to-day experiences. The current study had two objectives: (1) investigate whether age discrepancy (specifically desiring to be younger than one's chronological age) was related to daily negative affect and (2) examine whether this relationship changed as participants aged over time. We utilized the Midlife in the United States (MIDUS) diary study, a longitudinal measurement burst study with three waves of 8-day daily diaries indexing approximately 20 years. Participants (N = 2398; Mage [baseline] = 46.85, SD = 12.24; 54.7% women; 92.4% White) reported their desired age as well as daily negative affect at each wave. Using multilevel modeling, we examined whether age discrepancy predicted daily negative affect across 3 waves of observation. Results supported a significant relationship between age discrepancy and daily negative affect. However, no interactions among age discrepancy and baseline age or time across study were found. This suggests that the relationship between age discrepancy and daily negative affect was consistent across waves and participants over a 20-year period and provides evidence for the pernicious effect of deidentifying with one's real age on daily life. Daily experiences can act as potential risk or protective factors and shape developmental trajectories. Reducing ageism through societal interventions or increasing personal acceptance of aging through targeted interventions are two potential pathways of promoting health and well-being across the lifespan.


Asunto(s)
Afecto , Envejecimiento , Adolescente , Humanos , Femenino , Estados Unidos , Anciano , Masculino
5.
J Happiness Stud ; 23(5): 1991-2008, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35801190

RESUMEN

Memory lapses are a type of daily challenge that are common to most people and are associated with negative mood outcomes. How daily challenges are associated and linked to broad domains, like life satisfaction and well-being, has been underexamined. Life satisfaction is often assessed from a macro-level that emphasizes average differences over longer timeframes, yet daily experiences (i.e., micro-level) may accumulate to shape these characteristics. In the current study, we examined if daily memory lapses (e.g., difficulties with word-finding or forgetting a meeting) were associated with life satisfaction, and whether this relationship was mediated by the associated changes in positive and negative affect due to daily memory lapses. In a coordinated analysis of two datasets (N = 561, ages 25-93 years), we used multilevel structural equation modeling to assess how daily memory lapses may influence the broader outcome of global life satisfaction. The pattern of results was similar across datasets: memory lapses were associated with reduced positive affect and increased negative affect. Further, the daily affect associated with daily memory lapses significantly mediated the relationship between lapses and life satisfaction, while the direct relationship between memory lapses and life satisfaction was non-significant. This study provides support for the role of daily challenges, specifically memory lapses, influencing broader constructs such as psychological well-being by identifying the key factor of affective responses. Future work should identify other salient daily challenges, as well as explore if reducing the affective response to challenges through targeted interventions would mitigate impacts on distal functioning.

6.
Int J Older People Nurs ; 17(3): e12439, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35490354

RESUMEN

BACKGROUND: Associations among psychological health and memory concerns in older adults are well-established, but much of this research is quantitative. OBJECTIVES: This study examined how memory problems influence emotional well-being in older adults without dementia, and whether this differs by cognitive status and current depressive or anxiety symptoms. METHODS: A qualitative descriptive design was used to examine our research questions. Community-dwelling older adults without dementia (n = 49, Mage  = 74.5[10.1], 63% women) completed a cognitive assessment, questionnaires and two semi-structured interviews. Content analysis was used to code and categorise the transcribed interview data, then identify themes within and across participant groups. RESULTS: Five themes described the influence of memory problems on emotional well-being: Evoking Emotions, Fearing Future, Undermining Self, Normalising Problems and Adjusting Thinking. Memory problems' impact on emotional well-being varied by current anxiety symptoms, characteristics of the problem and personal experience with dementia. CONCLUSION: The emotional impact of memory problems tended to differ by affective symptoms, not cognitive status. Older adults who report memory concerns without objective evidence of impairment may be at risk for negative impacts to mental health and well-being. IMPLICATIONS FOR PRACTICE: Cognitive screening guidelines should consider best practices for responding to memory concerns when cognitive testing results are normal.


Asunto(s)
Demencia , Trastornos de la Memoria , Anciano , Demencia/psicología , Depresión/psicología , Emociones , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas
7.
J Gerontol B Psychol Sci Soc Sci ; 77(2): 300-311, 2022 02 03.
Artículo en Inglés | MEDLINE | ID: mdl-33959767

RESUMEN

OBJECTIVES: The current study examined within-person associations of self-reports of impaired current memory functioning and perceived decline with depressive symptoms in older adults without cognitive impairment, and whether these associations were moderated by individuals' levels of neuroticism, conscientiousness, and extraversion. METHODS: Samples were drawn from the Einstein Aging Study, Rush Memory and Aging Project (MAP), Minority Aging Research Study (MARS), Health and Retirement Study (HRS), and National Health and Aging Trends Study (NHATS), with over 8,000 participants (65+ years) included across data sets. In a series of coordinated analyses, multilevel linear models tested within-person relationships over periods of up to 22 years. RESULTS: Across HRS and NHATS samples, self-reports of impaired current memory functioning covaried with depressive symptoms over time. This association was moderated by neuroticism, such that the association was stronger for individuals with higher levels of neuroticism. Across all samples, perceived memory decline covaried with depressive symptoms over time. This association was moderated by neuroticism in MAP/MARS, HRS, and NHATS, such that the association was stronger for individuals with higher levels of neuroticism. DISCUSSION: Self-reports of impaired current memory functioning and perceived memory decline are important determinants of older adults' psychological well-being. In our results, at times when older adults perceive poorer memory functioning or decline, they also tend to report more depressive symptoms. Further, results from two larger data sets suggest that individuals' level of neuroticism may determine the extent to which self-reports of memory impairment and depressive symptoms covary over time.


Asunto(s)
Depresión , Autoevaluación Diagnóstica , Trastornos de la Memoria , Determinación de la Personalidad , Anciano , Variación Biológica Individual , Cognición , Conciencia , Correlación de Datos , Depresión/diagnóstico , Depresión/psicología , Extraversión Psicológica , Femenino , Humanos , Masculino , Trastornos de la Memoria/diagnóstico , Trastornos de la Memoria/psicología , Neuroticismo , Autoimagen
8.
Aging Ment Health ; 26(5): 992-1000, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-33855905

RESUMEN

OBJECTIVES: To examine relationships between subjective memory impairment (SMI) and parental dementia among in older adults while considering the interactive influence of depressive symptoms, ethnicity, and race. METHOD: The sample was drawn from the Health and Retirement Study, a nationally representative longitudinal study of aging (n = 3,809; Mage = 66.09; SD = 1.88; 84.20% White; 12.23% Black; 7.88% Hispanic). Biennial assessments included two measures of SMI (current memory problems and perceived memory decline), depressive symptoms, and parental dementia, over periods of up to sixteen years. Multilevel modeling analyses examined longitudinal relationships between parental dementia and SMI and whether depressive symptoms, ethnicity, and race interactively influenced this association. RESULTS: Results showed that when older adults reported parental dementia, they were more likely to report a decline in memory in the past two years. They also reported poorer current memory problems, especially when they experienced increased depressive symptoms. Associations of parental dementia were consistent across ethnicity and race. CONCLUSIONS: Results demonstrate the importance of considering parental dementia as a factor that may contribute to SMI in older adults.


Asunto(s)
Demencia , Jubilación , Anciano , Demencia/epidemiología , Humanos , Estudios Longitudinales , Trastornos de la Memoria/epidemiología , Padres
9.
J Alzheimers Dis ; 83(4): 1623-1636, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34420951

RESUMEN

BACKGROUND: Subjective cognitive decline (SCD) may be an early indicator of cognitive impairment, but depressive symptoms can confound this relationship. Associations may be influenced by differences between individuals (i.e., between-persons) or how each individual changes in their experiences over time (i.e., within-persons). OBJECTIVE: We examined depressive symptoms as a mediator of the between- and within-person associations of SCD and objective memory in older adults. METHODS: Coordinated analyses were conducted across four datasets drawn from large longitudinal studies. Samples (range: n = 1,889 to n = 15,841) included participants 65 years of age or older with no dementia at baseline. We used multilevel structural equation modeling to examine the mediation of SCD and objective memory through depressive symptoms, as well as direct relationships among SCD, objective memory, and depressive symptoms. RESULTS: Older adults who were more likely to report SCD had lower objective memory on average (between-person associations), and depressive symptoms partially mediated this relationship in three of four datasets. However, changes in depressive symptoms did not mediate the relationship between reports of SCD and declines in objective memory in three of four datasets (within-person associations). CONCLUSION: Individual differences in depressive symptoms, and not changes in an individual's depressive symptoms over time, partially explain the link between SCD and objective memory. Older adults with SCD and depressive symptoms may be at greater risk for poor cognitive outcomes. Future research should explore how perceived changes in memory affect other aspects of psychological well-being, and how these relationships influence cognitive decline and Alzheimer's disease risk.


Asunto(s)
Envejecimiento , Disfunción Cognitiva/psicología , Depresión/psicología , Memoria/fisiología , Anciano , Anciano de 80 o más Años , Envejecimiento/fisiología , Envejecimiento/psicología , Femenino , Voluntarios Sanos , Humanos , Estudios Longitudinales , Masculino , Autoinforme
10.
PLoS One ; 16(7): e0253795, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34234373

RESUMEN

INTRODUCTION: Cognitive complaints in older adults may be indicative of progressive cognitive decline including Alzheimer's disease (AD), but also occur in other age-related chronic conditions, complicating identification of early AD symptoms. To better understand cognitive complaints in aging, we systematically reviewed the evidence to determine their prevalence and characterization among older adults with the most common age-related chronic conditions. METHODS: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement and the review protocol was prospectively registered with PROSPERO (ID: CRD42020153147). Searches were conducted in PubMed, CINAHL, PsycINFO, Web of Science, and ProQuest Dissertations & Theses A&I in June 2020. Two members of the review team independently determined article eligibility for inclusion and conducted quality appraisal. A narrative synthesis of results was used to integrate findings across studies and draw conclusions regarding the strength of the evidence in each chronic condition category. RESULTS: Thirty-seven articles met eligibility criteria and were included in the review. Conditions represented were diabetes (n = 20), heart disease (n = 13), hypertension (n = 10), chronic lung disease (n = 5), arthritis (n = 4), heart failure (n = 2), and hyperlipidemia (n = 2). In addition, 16 studies included a measure of multimorbidity. Overall, there was a higher prevalence of cognitive complaints in individuals with higher multimorbidity, including a potential dose-dependent relationship. Findings for specific conditions were inconsistent, but there is evidence to suggest that cross-sectionally, older adults with diabetes, heart disease, chronic lung disease, and arthritis have more cognitive complaints than those without these conditions. CONCLUSION: There is strong evidence demonstrating that cognitive complaints are more common in older adults with higher multimorbidity, but little research examining these associations over time. Improving our understanding of the longitudinal trajectory of cognitive complaints, multimorbidity, and objective cognition in older age is an important area for future research.


Asunto(s)
Envejecimiento/fisiología , Enfermedad Crónica/epidemiología , Disfunción Cognitiva/epidemiología , Multimorbilidad , Factores de Edad , Anciano , Cognición/fisiología , Disfunción Cognitiva/etiología , Disfunción Cognitiva/fisiopatología , Humanos , Factores de Riesgo
11.
Gerontology ; 67(3): 357-364, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33706325

RESUMEN

INTRODUCTION: Current understanding of the psychometric properties of items intended to assess the multidimensional construct of subjective memory (SM) is limited, as longitudinal studies of aging commonly use single items or brief sets of items to assess SM. Investigating how SM items cluster within individuals over time would increase the understanding of how combining these items impacts their utility as an early indicator of cognitive change in the aging trajectory. To address this need, the current study examined the factor structure of a brief set of SM items in an existing longitudinal study focused on cognitive aging at both the within-person and between-person levels. METHODS: Data were drawn from the Einstein Aging Study, a longitudinal cohort study of aging (N = 1,239, Mage = 77.51, SD = 5.03; 69.50% white; 24.27% black; 6.23% other). Community-dwelling older adults from an urban area of New York City were interviewed annually. At each wave, participants responded to 6 items intended to assess SM. Items assessed participants' perceived memory decline as well as current memory ability. Multilevel exploratory factor analyses examined which factor solution best fit the data at between-person and within-person levels. RESULTS: Factor structure of the SM items varied at the two levels. At the within-person level, two factors emerged, whereas at the between-person level, a single factor best represented the SM items. Items assessing perceived declines in memory functioning tended to have similar trajectories, while items assessing current memory ability were less related to change over time. CONCLUSION: Items appeared to assess two different dimensions of SM when examining within-person changes in SM across time; however, the item structure suggested no other items covaried systematically within persons over time. In contrast to the conceptualization of SM as a multidimensional construct, our findings suggest that when measuring SM between individuals, SM items tend to capture a single dimension underlying SM. This may be due to the long retrospection period of items assessing perceived memory ability. A single item assessing perceived memory decline in older adults without evidence of objective cognitive impairment may be sufficient to monitor memory change in clinical or research settings.


Asunto(s)
Disfunción Cognitiva , Memoria , Anciano , Envejecimiento , Disfunción Cognitiva/diagnóstico , Humanos , Vida Independiente , Estudios Longitudinales
12.
Aging Cell ; 20(3): e13313, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33561324

RESUMEN

Pregnancy-associated plasma protein-A (PAPP-A) is a secreted metalloprotease that increases insulin-like growth factor (IGF) availability by cleaving IGF-binding proteins. Reduced IGF signaling extends longevity in multiple species, and consistent with this, PAPP-A deletion extends lifespan and healthspan; however, the mechanism remains unclear. To clarify PAPP-A's role, we developed a PAPP-A neutralizing antibody and treated adult mice with it. Transcriptomic profiling across tissues showed that anti-PAPP-A reduced IGF signaling and extracellular matrix (ECM) gene expression system wide. The greatest reduction in IGF signaling occurred in the bone marrow, where we found reduced bone, marrow adiposity, and myelopoiesis. These diverse effects led us to search for unifying mechanisms. We identified mesenchymal stromal cells (MSCs) as the source of PAPP-A in bone marrow and primary responders to PAPP-A inhibition. Mice treated with anti-PAPP-A had reduced IGF signaling in MSCs and dramatically decreased MSC number. As MSCs are (1) a major source of ECM and the progenitors of ECM-producing fibroblasts, (2) the originating source of adult bone, (3) regulators of marrow adiposity, and (4) an essential component of the hematopoietic niche, our data suggest that PAPP-A modulates bone marrow homeostasis by potentiating the number and activity of MSCs. We found that MSC-like cells are the major source of PAPP-A in other tissues also, suggesting that reduced MSC-like cell activity drives the system-wide reduction in ECM gene expression due to PAPP-A inhibition. Dysregulated ECM production is associated with aging and drives age-related diseases, and thus, this may be a mechanism by which PAPP-A deficiency enhances longevity.


Asunto(s)
Homeostasis , Longevidad , Células Madre Mesenquimatosas/metabolismo , Proteína Plasmática A Asociada al Embarazo/antagonistas & inhibidores , Animales , Anticuerpos Neutralizantes/metabolismo , Médula Ósea/metabolismo , Matriz Extracelular/genética , Matriz Extracelular/metabolismo , Regulación de la Expresión Génica , Células HEK293 , Humanos , Ratones , Modelos Biológicos , Mielopoyesis , Osteoblastos/metabolismo , Osteogénesis , Proteína Plasmática A Asociada al Embarazo/metabolismo , Transducción de Señal , Somatomedinas/metabolismo
13.
Gerontologist ; 61(7): 1107-1117, 2021 09 13.
Artículo en Inglés | MEDLINE | ID: mdl-33326557

RESUMEN

BACKGROUND AND OBJECTIVES: Self-perceptions of memory problems may impact older adults' mood as well as their activity participation, thereby negatively affecting health and well-being. We examined within-person associations among self-reported memory, depressive symptoms, as well as physical, social, and cognitive activity participation in older adults without cognitive impairment. RESEARCH DESIGN AND METHODS: Samples were drawn from the Einstein Aging Study (EAS), National Health and Aging Trends Study (NHATS), Rush Memory and Aging Project (MAP), and Minority Aging Research Study (MARS), with over 8,000 participants (65+ years) included across data sets. In a series of coordinated analyses, multilevel structural equation modeling was used to examine within-person relationships over periods of up to 20 years. RESULTS: Across EAS, NHATS, and MAP/MARS samples, we found that older adults' self-perceptions of memory did not directly covary with activity participation over time. However, we did find an indirect association in NHATS such that within-person changes in depressive symptoms were associated with changes in self-reported memory, and these contributed to lower physical as well as social activity participation. DISCUSSION AND IMPLICATIONS: Older adults' activity participation is important for health, but maximizing engagement requires understanding potentially impeding factors. We found some evidence that as self-perceptions of memory change over time, associated depressive symptoms may contribute to lower activity participation. Inconsistent findings across data sets, however, suggest future research is needed to understand individual characteristics that may influence these relationships.


Asunto(s)
Disfunción Cognitiva , Depresión , Anciano , Envejecimiento , Depresión/epidemiología , Humanos , Trastornos de la Memoria , Autoimagen
14.
Anxiety Stress Coping ; 34(1): 37-50, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-33108888

RESUMEN

BACKGROUND: Perceived stress decreases memory performance and escalates the risk of developing cognitive impairment. Despite these concerning cognitive outcomes, longitudinal assessment of the relationship between perceived stress and memory complaints within a racially diverse sample remains scant. METHOD: 391 cognitively intact older adults (M = 77.31, SD = 4.75) from the Einstein Aging Study were measured annually for up to nine years. Memory complaint items included self-reported frequency of forgetfulness, one-year memory decline, and 10-year memory decline. Multilevel models examined between-person and within-person associations between perceived stress and memory complaints while controlling for demographic differences and neuroticism. RESULTS: Strong between-person associations emerged such that older adults with generally higher perceived stress were more likely to report memory complaints, and vice versa. No significant concurrent within-person associations emerged. One lagged association emerged showing that within-person increases in perceived stress translated to a higher likelihood of reporting 10-year memory decline at the next annual screening. CONCLUSION: Older adults with higher perceived stress are at risk for memory complaints over time. Further research into the relationship between perceived stress and memory complaints is necessary to augment our understanding of how risk factors of cognitive decline present throughout the aging process.


Asunto(s)
Envejecimiento , Evaluación Geriátrica/métodos , Trastornos de la Memoria/complicaciones , Trastornos de la Memoria/psicología , Estrés Psicológico/complicaciones , Estrés Psicológico/psicología , Anciano , Estudios de Cohortes , Femenino , Humanos , Estudios Longitudinales , Masculino , Trastornos de la Memoria/diagnóstico , Pruebas Neuropsicológicas , Ciudad de Nueva York , Estrés Psicológico/diagnóstico
15.
Sci Transl Med ; 12(540)2020 04 22.
Artículo en Inglés | MEDLINE | ID: mdl-32321864

RESUMEN

The kinase-activating mutation G2019S in leucine-rich repeat kinase 2 (LRRK2) is one of the most common genetic causes of Parkinson's disease (PD) and has spurred development of LRRK2 inhibitors. Preclinical studies have raised concerns about the safety of LRRK2 inhibitors due to histopathological changes in the lungs of nonhuman primates treated with two of these compounds. Here, we investigated whether these lung effects represented on-target pharmacology and whether they were reversible after drug withdrawal in macaques. We also examined whether treatment was associated with pulmonary function deficits. We conducted a 2-week repeat-dose toxicology study in macaques comparing three different LRRK2 inhibitors: GNE-7915 (30 mg/kg, twice daily as a positive control), MLi-2 (15 and 50 mg/kg, once daily), and PFE-360 (3 and 6 mg/kg, once daily). Subsets of animals dosed with GNE-7915 or MLi-2 were evaluated 2 weeks after drug withdrawal for lung function. All compounds induced mild cytoplasmic vacuolation of type II lung pneumocytes without signs of lung degeneration, implicating on-target pharmacology. At low doses of PFE-360 or MLi-2, there was ~50 or 100% LRRK2 inhibition in brain tissue, respectively, but histopathological lung changes were either absent or minimal. The lung effect was reversible after dosing ceased. Lung function tests demonstrated that the histological changes in lung tissue induced by MLi-2 and GNE-7915 did not result in pulmonary deficits. Our results suggest that the observed lung effects in nonhuman primates in response to LRRK2 inhibitors should not preclude clinical testing of these compounds for PD.


Asunto(s)
Enfermedad de Parkinson , Animales , Proteína 2 Quinasa Serina-Treonina Rica en Repeticiones de Leucina/genética , Pulmón , Morfolinas , Mutación , Primates , Pirimidinas , Pirroles
16.
BMC Geriatr ; 20(1): 57, 2020 03 02.
Artículo en Inglés | MEDLINE | ID: mdl-32114980

RESUMEN

BACKGROUND: Memory complaints and depressive symptoms are frequently associated in older adults and both serve as potential indicators of future cognitive decline. However, the temporal ordering of the development of these two symptoms remains unclear. The goal of the current study was to examine concurrent and temporal relationships between memory complaints and depressive symptoms in older adults. METHODS: Data were drawn from two longitudinal, nationally representative datasets and included cognitively intact older adults aged 65 and over. The datasets in the current study were from the National Health and Aging Trends Study (NHATS) and the Health and Retirement Study (HRS). Using an integrative analytic framework, we tested bidirectional temporal relationships between memory complaints (memory ratings and perceived memory decline) and depressive symptoms over 6 to 9 years of data in over 5000 older adults across these two samples. RESULTS: Across both datasets, perceived memory decline predicted future depressive symptoms whereas memory ratings did not. Additionally, results showed that at times when depressive symptoms tended to be higher, memory complaints were also higher, but depressive symptoms did not predict future memory complaints. One finding that was inconsistent across datasets was memory ratings predicting depressive symptoms. After accounting for covariates, this relationship was only significant in one dataset. CONCLUSIONS: Cognitively intact older adults who report memory decline may be at risk for developing depressive symptoms in the future. Furthermore, our findings highlight the importance of using immediate replication of results across datasets to determine the generalizability of conclusions.


Asunto(s)
Disfunción Cognitiva , Depresión , Anciano , Anciano de 80 o más Años , Depresión/diagnóstico , Depresión/epidemiología , Femenino , Humanos , Masculino , Memoria , Trastornos de la Memoria/diagnóstico , Trastornos de la Memoria/epidemiología , Pruebas Neuropsicológicas , Jubilación
17.
Am J Alzheimers Dis Other Demen ; 35: 1533317519899792, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32162526

RESUMEN

The current study investigated whether having a first-degree relative with dementia influenced older adults' self-reported memory, if personality traits moderated these associations, and whether these associations differed by the type of item asked (ie, frequency of memory problems vs perceived memory decline). Data drawn from the Einstein Aging study included 454 older adults (Mage = 76.64, standard deviation = 4.77, 66.96% white, and 63% female). Multilevel modeling analyses showed participants who had a first-degree relative with dementia reported more frequent memory problems and were more likely to report memory decline over the past year. Among participants with a first-degree relative with dementia, higher levels of neuroticism were related to reports of more frequent memory problems at baseline, whereas higher levels of conscientiousness and lower levels of extraversion were related to reports of more frequent memory problems over time. Future research should consider personality traits and family history of dementia as potential contributors to self-reported memory problems.


Asunto(s)
Demencia , Trastornos de la Memoria/psicología , Personalidad , Autoinforme , Anciano , Demencia/genética , Demencia/psicología , Femenino , Predisposición Genética a la Enfermedad , Humanos , Estudios Longitudinales , Masculino , Neuroticismo
18.
Int Psychogeriatr ; 32(6): 719-732, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-31309918

RESUMEN

OBJECTIVES: The current study examined whether self-reported memory problems among cognitively intact older adults changed concurrently with, preceded, or followed depressive symptoms over time. DESIGN: Data were collected annually via in-person comprehensive medical and neuropsychological examinations as part of the Einstein Aging Study. SETTING: Community-dwelling older adults in an urban, multi-ethnic area of New York City were interviewed. PARTICIPANTS: The current study included a total of 1,162 older adults (Mage = 77.65, SD = 5.03, 63.39% female; 74.12% White). Data were utilized from up to 11 annual waves per participant. MEASUREMENTS: Multilevel modeling tested concurrent and lagged associations between three types of memory self-report (frequency of memory problems, perceived one-year decline, and perceived ten-year decline) and depressive symptoms. RESULTS: Results showed that self-reported frequency of memory problems covaried with depressive symptoms only in participants who were older at baseline. Changes in perceived one-year and ten-year memory decline were related to changes in depressive symptoms across all ages. Depressive symptoms increased the likelihood of perceived ten-year memory decline the next year; however, perceived ten-year memory decline did not predict future depressive symptoms. Additionally, no significant temporal relationship was observed between depressive symptoms and self-reported frequency of memory problems or perceived one-year memory decline. CONCLUSION: Our findings highlight the importance of testing the unique associations of different types of self-reported memory problems with depressive symptoms.


Asunto(s)
Envejecimiento , Depresión/epidemiología , Trastornos de la Memoria/epidemiología , Anciano , Anciano de 80 o más Años , Envejecimiento/psicología , Cognición , Depresión/psicología , Femenino , Humanos , Vida Independiente , Entrevistas como Asunto , Estudios Longitudinales , Masculino , Memoria , Trastornos de la Memoria/psicología , Ciudad de Nueva York
19.
Aging Ment Health ; 24(11): 1864-1871, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-31379193

RESUMEN

Objectives: Older adults commonly report problems with their memory which can elicit sadness and worry about future development of cognitive impairment. Conversely, ongoing depressive symptoms can negatively impact older adults' perceptions of their memory performance. The current study examined the longitudinal associations between self-reported memory problems and depressive symptoms to explore which symptom tends to appear first.Method: Two datasets from ongoing observational, longitudinal studies of aging (Memory and Aging Project; Minority Aging Research Study) were used for secondary analyses. Older adults (n = 1,724; Mage = 77.03; SD = 7.54; 76.80% female; 32.26% Black) completed up to 18 annual assessments of self-reported memory (two items: perceived decline in memory and frequency of memory problems) and depressive symptoms. Multilevel models were used to examine intra-individual variability and time-lagged relationships between self-reported memory and depressive symptoms.Results: Concurrently, self-reported memory problems and depressive symptoms were significantly related; at times when older adults reported poorer memory, they also reported more depressive symptoms, regardless of the type of memory self-report. Prospectively, perceived memory decline predicted future depressive symptoms, but depressive symptoms did not predict future reports of memory decline. Self-reported frequency of memory problems did not predict future depressive symptoms or vice versa.Conclusion: The current study's findings suggest a temporal relationship between perceived memory decline and depressive symptoms, such that perceived memory decline can lead to future depressive symptoms. These findings can inform future studies focused on developing a standardized assessment of self-reported memory that is separable from depressive symptoms.


Asunto(s)
Disfunción Cognitiva , Depresión , Anciano , Envejecimiento , Disfunción Cognitiva/epidemiología , Depresión/epidemiología , Femenino , Humanos , Estudios Longitudinales , Masculino , Memoria , Trastornos de la Memoria/epidemiología , Autoinforme
20.
Aging Ment Health ; 24(1): 56-62, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-30744414

RESUMEN

Objective: Self-reported memory complaints in older adults are common and may be an early indicator of future cognitive decline or dementia. However, there is wide variety in self-reported memory items that lack consensus on what they intend to measure. This study explored the perspectives of older adults on items currently used to assess self-reported memory.Method: A convenience sample of community dwelling older adults (n = 51) completed a free card sorting task of 16 commonly used items assessing self-reports of memory problems. Multidimensional scaling (MDS) was used to extract dimensions that describe the similarities among the self-reported items. Visual maps were created to interpret the content of each dimension and validity of the dimensions was checked using the labels provided by the participants.Results: Three underlying dimensions describing the items were identified: time frame, problem specificity, and framing. These dimensions were supported by participant provided labels.Conclusion: The three identified dimensions suggest that the commonly used self-reported memory items assess substantively different aspects of the same broad concept. To avoid inconsistencies in assessing self-reported memory problems in older adults, we recommend researchers specify the aspects of memory problems that they are interested in and link their items to those aspects. In addition, they should develop items that are a good match to their research question rather than simply selecting items that are commonly used or appear to have high face validity.


Asunto(s)
Memoria , Autoinforme/normas , Anciano , Anciano de 80 o más Años , Envejecimiento/psicología , Femenino , Humanos , Vida Independiente , Masculino , Pruebas de Memoria y Aprendizaje , Persona de Mediana Edad , Reproducibilidad de los Resultados , Factores de Tiempo
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