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1.
Int J Geriatr Psychiatry ; 39(2): e6058, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38279894

RESUMEN

OBJECTIVES: Physical activity (PA) can reduce depressive symptoms but has not been tested amongst depressed older caregivers and their care-recipients. The aim of this single-blind randomized controlled trial was to investigate the effect of a 6-month tailored PA program on depressive symptoms in older caregivers. METHOD: Caregivers were included if they had scores of ≥5 on the 15-item geriatric depression scale (GDS-15). Care-recipients could have any type of physical, mental or cognitive condition requiring support. The PA intervention group completed an individualized program based on the Otago-Plus Exercise Program. The primary outcome was improvement in depressive symptoms in caregivers measured at six and 12 months. RESULTS: Two hundred and twelve participants (91 dyads and 30 caregivers only) were randomized using a 3:3:1 ratio to PA intervention, social-control, and usual-care control groups. There were no significant differences in depressive symptoms of the caregivers between the three groups at 6 months or 12 months. However, more than 50% of caregivers in all three groups no longer had a GDS-15 score ≥5 at 6 months. Further analysis revealed that caregivers in the PA group caring for someone with a standardised mini-mental state examination (SMMSE) score ≥24 had significantly less depressive symptoms than those caring for someone with a SMMSE score <24 compared with social-control (p < 0.02) and usual-care groups (p < 0.02). CONCLUSIONS: A PA intervention may be beneficial for some caregivers in reducing symptoms of depression but may not be as beneficial to caregivers of people living with cognitive impairment.


Asunto(s)
Cuidadores , Depresión , Humanos , Anciano , Depresión/psicología , Cuidadores/psicología , Método Simple Ciego , Ejercicio Físico , Terapia por Ejercicio
2.
Aging Ment Health ; : 1-7, 2024 Jul 05.
Artículo en Inglés | MEDLINE | ID: mdl-38967544

RESUMEN

OBJECTIVES: People living with dementia often experience behavioural and psychological symptoms of dementia (BPSD), which severely affect their well-being during the course of the disease. Particularly for BPSD outcomes, there is a high demand for increasing the evidence-based knowledge of non-pharmacological approaches, such as music-based interventions. Although previous reviews emphasize the potential effects of music-based interventions in people with dementia, they cover a wide range of different interventions and outcomes. METHOD: Therefore, this systematic review (SR) and network meta-analysis (NMA) aims to not only investigate the efficacy of music-based interventions on BPSD, but also to compare the impact of different types of music-based interventions on outcomes. Preferred reporting items for SR and meta-analysis protocols (PRISMA-P) and the PRISMA NMA extension were followed. Several databases will be searched from inception to the date the search will be performed, for relevant randomized or non-randomized controlled trials comparing a music-based intervention with treatment as usual, active controls, or another music-based intervention. Multivariate pairwise meta-analyses will be conducted for each outcome. NMA based on a frequentist random-effects model will be used to estimate the comparative effects of each type of music-based intervention and related components across outcomes. Heterogeneity will be investigated by meta-regression models. CONCLUSION: Based on our knowledge, this may be the first SR and NMA study to compare the efficacy of different types of music-based interventions. In addition, combined with our multivariate analysis approach, it will allow us to identify potential effect modifiers in music-based intervention for treating BPSD.

3.
Australas Psychiatry ; : 10398562241268362, 2024 Aug 22.
Artículo en Inglés | MEDLINE | ID: mdl-39171851

RESUMEN

OBJECTIVE: Women face considerable barriers in pursuing careers in academic psychiatry. METHODS: A group of Australian and New Zealand academic women psychiatrists convened in September 2022 to identify and propose solutions to increase opportunities for women in academic psychiatry. RESULTS: Limiting factors were identified in pathways to academia including financial support, engagement and coordination between academia and clinical services, and flexible working conditions. Gender biases and the risk of burnout were additional and fundamental barriers. Potential solutions include offering advanced training certificates to enable trainees to commence a PhD and Fellowship contemporaneously; improved financial support; expanding opportunities for research involvement; establishing mentoring opportunities and communities of practice; and strategies to enhance safety at work and redress gender bias and imbalance in academia. CONCLUSIONS: Support for women in research careers will decrease gender disparity in academic psychiatry and may decrease problematic gender bias in research. Fellows and trainees, the RANZCP, universities, research institutes, governments, industry and health services should collaborate to develop and implement policies supporting changes in working conditions and training. Facilitating the entry and retention of women to careers in academic psychiatry requires mentoring and development of a community of practice to provide and enable support, role modelling, and inspiration.

4.
Neuropsychol Rev ; 2023 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-37477839

RESUMEN

Most people with dementia experience neuropsychiatric symptoms (NPS), including anxiety, depression or disinhibition. There is growing interest in the relationship between NPS and cognitive impairment, but data is still limited. This study aimed to investigate the specific associations between NPS and cognition in people with dementia. MEDLINE, EMBASE and PsycINFO were searched for published, peer-reviewed studies of associations between at least one NPS and one cognitive ability in people with dementia. The quality of the studies was assessed with the NIH National Heart, Lung and Blood Institute's quality assessment tools. A meta-analysis was conducted using Robumeta package for R. Ninety studies were included. We found significant associations between NPS, global cognition and cognitive domains, e.g. apathy was associated with global cognitive and memory impairment; dysphoria was associated with worse attention; delusions with executive dysfunction. Increased NPS in people with dementia are associated with worse cognitive performance. There were few studies looking at associations between some neuropsychiatric clusters and cognitive abilities, and there was little research on causal relationships. Our review was limited by the inclusion of studies that reported associations in specific formats, and most included people with a diagnosis of Alzheimer's disease (AD). However, given the large number of studies, this is unlikely to have biased results. More research is needed that includes diverse people with different dementia syndromes. Registration: PROSPERO 2020 CRD42020165565.

5.
Int Psychogeriatr ; 35(1): 29-42, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36189727

RESUMEN

OBJECTIVES: This study investigated attitudes towards dementia among Chinese immigrants aged 50 years and over living in Australia and compares these attitudes with those of individuals living in mainland China. It aimed to better understand what older Chinese adults think about dementia and to inform the development of tailored dementia-related services for this group of people. DESIGN: A qualitative design involving individual interviews was employed in this study. PARTICIPANTS: Forty-six participants were recruited: 21 in Melbourne and 25 in Beijing. All interviewees were born in mainland China, were community-dwelling, and did not have a dementia diagnosis. MEASUREMENTS: The tripartite model of attitudes was used to guide the semi-structured interview design and report the results. Thematic qualitative analysis was employed. RESULTS: In both groups, most participants held negative feelings, stigmatized views and negative stereotypes of dementia. However, most participants expressed a willingness to help individuals living with dementia. Regarding dementia care, nearly all participants preferred home care but thought formal care would become the mainstream form of care in the future. Fewer Melbourne participants expressed concerns regarding developing dementia, were interested in dementia, or perceived a need for dementia-related educational activities. Melbourne participants also reported more avoidant responses to dementia or individuals living with dementia. CONCLUSION: This study carefully compares attitudes towards dementia between older Chinese immigrants in Melbourne and older Chinese adults in Beijing. Similarities and differences were observed between these two groups. Dementia-related service providers should consider the sociocultural changes and migration-related barriers experienced by Chinese immigrants.


Asunto(s)
Demencia , Emigrantes e Inmigrantes , Anciano , Humanos , Persona de Mediana Edad , Actitud , Beijing , Pueblos del Este de Asia , Australia
6.
Aging Ment Health ; 27(2): 243-250, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35100918

RESUMEN

OBJECTIVES: To investigate electronic care notes to better understand reporting and management of neuropsychiatric symptoms (NPS) by residential aged care (RAC) staff. METHODS: We examined semi-structured care notes from electronic healthcare notes of 77 residents (67% female; aged 67-101; 79% with formal dementia diagnosis) across three RAC facilities. As part of standard clinical practice, staff documented the NPS presentation and subsequent management amongst residents. Using a mixed-method approach, we analyzed the type of NPS reported and explored care staff responses to NPS using inductive thematic analysis. RESULTS: 465 electronic care notes were recorded during the 18-month period. Agitation-related behaviors were most frequently reported across residents (48.1%), while psychosis (15.6%), affective symptoms (14.3%), and apathy (1.3%) were less often reported. Only 27.5% of the notes contained information on potential causes underlying NPS. When faced with NPS, care staff responded by either providing emotional support, meeting resident's needs, removing identified triggers, or distracting. CONCLUSION: Results suggest that RAC staff primarily detected and responded to those NPS they perceived as distressing. Findings highlight a potential under-recognition of specific NPS types, and lack of routine examination of NPS causes or systematic assessment and management of NPS. These observations are needed to inform the development and implementation of non-pharmacological interventions and care programs targeting NPS in RAC.Supplemental data for this article is available online at https://doi.org/10.1080/13607863.2022.2032597 .


Asunto(s)
Demencia , Trastornos Psicóticos , Anciano , Humanos , Femenino , Masculino , Casas de Salud , Demencia/diagnóstico , Demencia/terapia , Demencia/psicología , Hogares para Ancianos , Atención a la Salud
7.
Am J Geriatr Psychiatry ; 30(12): 1313-1323, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-35680539

RESUMEN

OBJECTIVES: To determine if behavioral activation (BA) delivered by trained staff decreases prevalence of clinically significant symptoms of depression among older adults living in residential aged care facilities (RACFs). METHODS: Clustered, randomized, single-blinded, controlled trial of BA for adults aged over 60 years living permanently in a RACF with symptoms of depression (Patient Health Questionnaire, PHQ-9 ≥ 5). BA was delivered over 8-12 weeks using a structured workbook. The proportion of residents with PHQ-9 ≥ 10 at weeks 12, 26, and 52, as well as anxiety symptoms (GAD-7), physical (PCS), and mental (MCS) quality of life, loneliness, and loss to follow-up were main outcomes of interest RESULTS: We recruited 54 RACFs (26 intervention) and 188 of their residents (89 intervention). Participants were aged 61-100 years and 132 (70.2%) were women. PHQ-9 ≥ 10 interacted with BA at week 12 (OR = 0.34, 95%CI = 0.11-1.07), but differences between the groups were not statistically significant at any time-point. GAD-7 ≥ 10 interacted with BA at week 26 (OR = 0.12, 95%CI = 0.02-0.58), but not at any other time-point. Overall, the intervention had no effect on the scores of the PHQ-9, GAD-7, PCS, MCS, and loneliness scale. Loss to follow-up was similar between groups. Adherence to all stages of the intervention was poor (36.2%). CONCLUSIONS: Disruption by the COVID-19 pandemic and staffing issues in RACFs undermined recruitment and adherence. In such a context, a BA program delivered by RACF staff was not associated with better mental health outcomes for residents over 52 weeks.


Asunto(s)
COVID-19 , Calidad de Vida , Femenino , Humanos , Persona de Mediana Edad , Anciano , Masculino , Calidad de Vida/psicología , Depresión/psicología , Pandemias , Casas de Salud
8.
Alzheimers Dement ; 18(1): 178-190, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-34058063

RESUMEN

The Alzheimer's Association International Conference held its sixth Satellite Symposium in Sydney, Australia in 2019, highlighting the leadership of Australian researchers in advancing the understanding of and treatment developments for Alzheimer's disease (AD) and other dementias. This leadership includes the Australian Imaging, Biomarker, and Lifestyle Flagship Study of Ageing (AIBL), which has fueled the identification and development of many biomarkers and novel therapeutics. Two multimodal lifestyle intervention studies have been launched in Australia; and Australian researchers have played leadership roles in other global studies in diverse populations. Australian researchers have also played an instrumental role in efforts to understand mechanisms underlying vascular contributions to cognitive impairment and dementia; and through the Women's Healthy Aging Project have elucidated hormonal and other factors that contribute to the increased risk of AD in women. Alleviating the behavioral and psychological symptoms of dementia has also been a strong research and clinical focus in Australia.


Asunto(s)
Envejecimiento/fisiología , Enfermedad de Alzheimer/epidemiología , Investigación Biomédica , Progresión de la Enfermedad , Síntomas Prodrómicos , Enfermedad de Alzheimer/diagnóstico , Enfermedad de Alzheimer/tratamiento farmacológico , Australia/epidemiología , Biomarcadores/sangre , Biomarcadores/líquido cefalorraquídeo , Biomarcadores/metabolismo , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/tratamiento farmacológico , Humanos , Estilo de Vida , Tomografía de Emisión de Positrones
9.
J Int Neuropsychol Soc ; 27(2): 146-157, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-32772959

RESUMEN

OBJECTIVES: The criteria for objective memory impairment in mild cognitive impairment (MCI) are vaguely defined. Aggregating the number of abnormal memory scores (NAMS) is one way to operationalise memory impairment, which we hypothesised would predict progression to Alzheimer's disease (AD) dementia. METHODS: As part of the Australian Imaging, Biomarkers and Lifestyle Flagship Study of Ageing, 896 older adults who did not have dementia were administered a psychometric battery including three neuropsychological tests of memory, yielding 10 indices of memory. We calculated the number of memory scores corresponding to z ≤ -1.5 (i.e., NAMS) for each participant. Incident diagnosis of AD dementia was established by consensus of an expert panel after 3 years. RESULTS: Of the 722 (80.6%) participants who were followed up, 54 (7.5%) developed AD dementia. There was a strong correlation between NAMS and probability of developing AD dementia (r = .91, p = .0003). Each abnormal memory score conferred an additional 9.8% risk of progressing to AD dementia. The area under the receiver operating characteristic curve for NAMS was 0.87 [95% confidence interval (CI) .81-.93, p < .01]. The odds ratio for NAMS was 1.67 (95% CI 1.40-2.01, p < .01) after correcting for age, sex, education, estimated intelligence quotient, subjective memory complaint, Mini-Mental State Exam (MMSE) score and apolipoprotein E ϵ4 status. CONCLUSIONS: Aggregation of abnormal memory scores may be a useful way of operationalising objective memory impairment, predicting incident AD dementia and providing prognostic stratification for individuals with MCI.


Asunto(s)
Enfermedad de Alzheimer , Disfunción Cognitiva , Anciano , Enfermedad de Alzheimer/complicaciones , Australia , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/etiología , Progresión de la Enfermedad , Humanos , Pruebas Neuropsicológicas
10.
Int Psychogeriatr ; 33(10): 1057-1067, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-33757605

RESUMEN

OBJECTIVES: This study compared dementia knowledge between older Chinese adults in Melbourne, Australia, and Beijing, China, and explored factors associated with dementia knowledge between these two groups. Ultimately, this study aimed to inform the development of tailored dementia education programs for older Chinese adults. DESIGN: A cross-sectional design was employed in this study. SETTING: Participants were recruited from 5 Chinese community senior groups in Melbourne and 10 community health centers in Beijing from March to May 2019. PARTICIPANTS: A total of 379 older Chinese adults aged 50 and over completed the questionnaire, including 153 from Melbourne and 226 from Beijing. MEASUREMENTS: Dementia knowledge was assessed using the Alzheimer's Disease Knowledge Scale (ADKS). Demographic characteristics, dementia-related experience, and the mental health status of participants were collected. Stepwise linear regression was used to analyze the factors associated with dementia knowledge. RESULTS: In general, older Chinese adults in Melbourne and Beijing reported similar levels of dementia knowledge for both the overall ADKS scale (mean ± SD: 17.2 ± 2.9 in Melbourne vs. 17.5 ± 2.9 in Beijing, p > 0.05) and the seven subdomains. Of the subdomains, the highest correct response rates were observed in the life impact of the dementia subdomain, and the lowest rates were observed in the caregiving subdomain. Stepwise linear regression analysis revealed that younger age and self-reported dementia worry were significantly associated with higher levels of dementia knowledge in the Melbourne group, whereas a positive family history of dementia was significantly associated with higher levels of dementia knowledge in the Beijing group. CONCLUSIONS: Older Chinese adults living in Melbourne and Beijing share similar levels of dementia knowledge, but factors associated with their knowledge are different. These findings will inform the development of culturally and socially appropriate dementia education programs for older Chinese populations in different countries.


Asunto(s)
Enfermedad de Alzheimer , Anciano , Beijing , China/epidemiología , Estudios Transversales , Conocimientos, Actitudes y Práctica en Salud , Humanos , Persona de Mediana Edad
11.
Alzheimers Dement ; 17(2): 255-270, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33215876

RESUMEN

INTRODUCTION: Non-pharmacological treatments (NPTs) have the potential to improve meaningful outcomes for older people at risk of, or living with dementia, but research often lacks methodological rigor and continues to produce mixed results. METHODS: In the current position paper, experts in NPT research have specified treatment targets, aims, and ingredients using an umbrella framework, the Rehabilitation Treatment Specification System. RESULTS: Experts provided a snapshot and an authoritative summary of the evidence for different NPTs based on the best synthesis efforts, identified main gaps in knowledge and relevant barriers, and provided directions for future research. Experts in trial methodology provide best practice principles and recommendations for those working in this area, underscoring the importance of prespecified protocols. DISCUSSION: We conclude that the evidence strongly supports various NPTs in relation to their primary targets, and discuss opportunities and challenges associated with a unifying theoretical framework to guide future efforts in this area.


Asunto(s)
Envejecimiento/fisiología , Demencia , Terapia Cognitivo-Conductual , Demencia/rehabilitación , Demencia/terapia , Ejercicio Físico , Humanos , Meditación , Musicoterapia
12.
J Neuropsychiatry Clin Neurosci ; 32(3): 235-243, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32102602

RESUMEN

OBJECTIVE: Huntington's disease (HD) is an inherited neurodegenerative disease involving motor, cognitive, psychiatric, and behavioral impairments that eventually affect work-role functioning. There is limited research regarding predictors of workplace disability in HD. The authors examined predictors of work impairment and disability in a cross-sectional cohort of employed persons with symptomatic HD participating in the worldwide Enroll-HD study. METHODS: The study sample (N=316) comprised individuals with manifest HD and a CAG repeat length range between 39 and 60 and were currently engaged in paid full- or part-time employment. Univariate and multivariate logistic regression analyses identified predictors and the effect of all predictors in a fully adjusted model. RESULTS: Of the sample, 20.3% reported missing work due to HD, 60.1% reported experiencing impairment while working due to HD, 79.1% reported having work-related activity impairment due to HD, and 60.8% reported impairment in overall work productivity due to HD. Individuals had 25% higher odds of missing work time if they had a higher level of functional impairment (odds ratio=0.76, 95% CI=0.64, 0.91) and had three times greater odds of missing work if they were current alcohol drinkers, compared with nondrinkers (odds ratio=2.86, 95% CI=1.62, 5.03). Individuals with lower self-perceived mental health were also 5% more likely to experience impairment at work due to HD. Motor impairment was not a strong predictor of workplace disability. CONCLUSIONS: These findings provide important new knowledge that can inform the development of strategies or targeted intervention trials to support persons with symptomatic HD to maintain their work roles.


Asunto(s)
Absentismo , Consumo de Bebidas Alcohólicas/epidemiología , Personas con Discapacidad/estadística & datos numéricos , Empleo/estadística & datos numéricos , Enfermedad de Huntington/epidemiología , Enfermedad de Huntington/fisiopatología , Trastornos Mentales/epidemiología , Rendimiento Laboral/estadística & datos numéricos , Adulto , Estudios de Cohortes , Comorbilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad
13.
BMC Geriatr ; 20(1): 508, 2020 11 26.
Artículo en Inglés | MEDLINE | ID: mdl-33243153

RESUMEN

BACKGROUND: Globally, about 50 million people were living with dementia in 2015, with this number projected to triple by 2050. With no cure or effective treatment currently insight, it is vital that factors are identified which will help prevent or delay both age-related and pathological cognitive decline and dementia. Observational data have suggested that hearing loss is a potentially modifiable risk factor for dementia, but no conclusive evidence from randomised controlled trials is currently available. METHODS: The HearCog trial is a 24-month, randomised, controlled clinical trial aimed at determining whether a hearing loss intervention can delay or arrest the cognitive decline. We will randomise 180 older adults with hearing loss and mild cognitive impairment to a hearing aid or control group to determine if the fitting of hearing aids decreases the 12-month rate of cognitive decline compared with the control group. In addition, we will also determine if the expected clinical gains achieved after 12 months can be sustained over an additional 12 months and if losses experienced through the non-correction of hearing loss can be reversed with the fitting of hearing aids after 12 months. DISCUSSION: The trial will also explore the cost-effectiveness of the intervention compared to the control arm and the impact of hearing aids on anxiety, depression, physical health and quality of life. The results of this trial will clarify whether the systematic correction of hearing loss benefits cognition in older adults at risk of cognitive decline. We anticipate that our findings will have implications for clinical practice and health policy development. TRIAL REGISTRATION: Australian and New Zealand Clinical Trials Registry ( ANZCTR: 12618001278224 ), registered on 30.07.2018.


Asunto(s)
Disfunción Cognitiva , Demencia , Audífonos , Anciano , Australia , Protocolos Clínicos , Cognición , Disfunción Cognitiva/prevención & control , Demencia/diagnóstico , Humanos , Nueva Zelanda , Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto
14.
J Med Internet Res ; 22(9): e19431, 2020 09 24.
Artículo en Inglés | MEDLINE | ID: mdl-32969833

RESUMEN

BACKGROUND: There is a need to develop interventions to reduce the risk of dementia in the community by addressing lifestyle factors and chronic diseases over the adult life course. OBJECTIVE: This study aims to evaluate a multidomain dementia risk reduction intervention, Body Brain Life in General Practice (BBL-GP), targeting at-risk adults in primary care. METHODS: A pragmatic, parallel, three-arm randomized trial involving 125 adults aged 18 years or older (86/125, 68.8% female) with a BMI of ≥25 kg/m2 or a chronic health condition recruited from general practices was conducted. The arms included (1) BBL-GP, a web-based intervention augmented with an in-person diet and physical activity consultation; (2) a single clinician-led group, Lifestyle Modification Program (LMP); and (3) a web-based control. The primary outcome was the Australian National University Alzheimer Disease Risk Index Short Form (ANU-ADRI-SF). RESULTS: Baseline assessments were conducted on 128 participants. A total of 125 participants were randomized to 3 groups (BBL-GP=42, LMP=41, and control=42). At immediate, week 18, week 36, and week 62 follow-ups, the completion rates were 43% (18/42), 57% (24/42), 48% (20/42), and 48% (20/42), respectively, for the BBL-GP group; 71% (29/41), 68% (28/41), 68% (28/41), and 51% (21/41), respectively, for the LMP group; and 62% (26/42), 69% (29/42), 60% (25/42), and 60% (25/42), respectively, for the control group. The primary outcome of the ANU-ADRI-SF score was lower for the BBL-GP group than the control group at all follow-ups. These comparisons were all significant at the 5% level for estimates adjusted for baseline differences (immediate: difference in means -3.86, 95% CI -6.81 to -0.90, P=.01; week 18: difference in means -4.05, 95% CI -6.81 to -1.28, P<.001; week 36: difference in means -4.99, 95% CI -8.04 to -1.94, P<.001; and week 62: difference in means -4.62, 95% CI -7.62 to -1.62, P<.001). CONCLUSIONS: A web-based multidomain dementia risk reduction program augmented with allied health consultations administered within the general practice context can reduce dementia risk exposure for at least 15 months. This study was limited by a small sample size, and replication on a larger sample with longer follow-up will strengthen the results. TRIAL REGISTRATION: Australian clinical trials registration number (ACTRN): 12616000868482; https://anzctr.org.au/ACTRN12616000868482.aspx.


Asunto(s)
Demencia/psicología , Dietoterapia/métodos , Ejercicio Físico/fisiología , Intervención basada en la Internet/tendencias , Femenino , Humanos , Masculino , Persona de Mediana Edad , Atención Primaria de Salud , Derivación y Consulta , Conducta de Reducción del Riesgo
15.
Br J Sports Med ; 54(13): 776-781, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31036563

RESUMEN

BACKGROUND: Sedentary behaviour is associated with impaired cognition, whereas exercise can acutely improve cognition. OBJECTIVE: We compared the effects of a morning bout of moderate-intensity exercise, with and without subsequent light-intensity walking breaks from sitting, on cognition in older adults. METHODS: Sedentary overweight/obese older adults with normal cognitive function (n=67, 67±7 years, 31.2±4.1 kg/m2) completed three conditions (6-day washout): SIT (sitting): uninterrupted sitting (8 hours, control); EX+SIT (exercise + sitting): sitting (1 hour), moderate-intensity walking (30 min), uninterrupted sitting (6.5 hours); and EX+BR (exercise + breaks): sitting (1 hour), moderate-intensity walking (30 min), sitting interrupted every 30 min with 3 min of light-intensity walking (6.5 hours). Cognitive testing (Cogstate) was completed at four time points assessing psychomotor function, attention, executive function, visual learning and working memory. Serum brain-derived neurotrophic growth factor (BDNF) was assessed at six time points. The 8-hour net area under the curve (AUC) was calculated for each outcome. RESULTS: Working memory net AUC z-score·hour (95% CI) was improved in EX+BR with a z-score of +28 (-26 to +81), relative to SIT, -25 (-79 to +29, p=0.04 vs EX+BR). Executive function net AUC was improved in EX+SIT, -8 (- 71 to +55), relative to SIT, -80 (-142 to -17, p=0.03 vs EX+SIT). Serum BDNF net AUC ng/mL·hour (95% CI) was increased in both EX+SIT, +171 (-449 to +791, p=0.03 vs SIT), and EX+BR, +139 (-481 to +759, p=0.045 vs SIT), relative to SIT, -227 (-851 to +396). CONCLUSION: A morning bout of moderate-intensity exercise improves serum BDNF and working memory or executive function in older adults, depending on whether or not subsequent sitting is also interrupted with intermittent light-intensity walking. TRIAL REGISTRATION NUMBER: ACTRN12614000737639.


Asunto(s)
Función Ejecutiva/fisiología , Ejercicio Físico/psicología , Memoria a Corto Plazo/fisiología , Sedestación , Caminata/fisiología , Anciano , Área Bajo la Curva , Factor Neurotrófico Derivado del Encéfalo/sangre , Estudios Cruzados , Humanos , Persona de Mediana Edad , Obesidad/fisiopatología , Sobrepeso/fisiopatología
16.
Int Psychogeriatr ; 31(4): 513-525, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30277188

RESUMEN

ABSTRACTBackground:This study investigated the characteristics of subjective memory complaints (SMCs) and their association with current and future cognitive functions. METHODS: A cohort of 209 community-dwelling individuals without dementia aged 47-90 years old was recruited for this 3-year study. Participants underwent neuropsychological and clinical assessments annually. Participants were divided into SMCs and non-memory complainers (NMCs) using a single question at baseline and a memory complaints questionnaire following baseline, to evaluate differential patterns of complaints. In addition, comprehensive assessment of memory complaints was undertaken to evaluate whether severity and consistency of complaints differentially predicted cognitive function. RESULTS: SMC and NMC individuals were significantly different on various features of SMCs. Greater overall severity (but not consistency) of complaints was significantly associated with current and future cognitive functioning. CONCLUSIONS: SMC individuals present distinctive features of memory complaints as compared to NMCs. Further, the severity of complaints was a significant predictor of future cognition. However, SMC did not significantly predict change over time in this sample. These findings warrant further research into the specific features of SMCs that may portend subsequent neuropathological and cognitive changes when screening individuals at increased future risk of dementia.


Asunto(s)
Cognición , Disfunción Cognitiva/diagnóstico , Evaluación Geriátrica/métodos , Trastornos de la Memoria , Pruebas Neuropsicológicas , Anciano , Autoevaluación Diagnóstica , Femenino , Humanos , Vida Independiente/estadística & datos numéricos , Masculino , Trastornos de la Memoria/diagnóstico , Trastornos de la Memoria/epidemiología , Trastornos de la Memoria/psicología , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Índice de Severidad de la Enfermedad , Australia Occidental/epidemiología
17.
J ECT ; 35(4): 245-250, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31764447

RESUMEN

OBJECTIVES: The main objective of our study was to examine whether there has been any change to electroconvulsive therapy (ECT) practice since the new Mental Health Act 2014 (MHA) in a public metropolitan mental health service in Victoria. METHODS: This retrospective study examined any change in ECT rate following the new MHA. We compared sociodemographic, clinical, and ECT-related variables for patients treated before (July 1, 2013, and June 30, 2014) and after (1st July 2014 and the 30th June 2015) the new MHA. RESULTS: A reduction of 11.15% in ECT use per 1000 admissions and 16.4% in ECT use per 100,000 persons was observed subsequent to the new MHA. Hospital legal status at admission positively predicted the chance of starting ECT treatment under involuntary consent. Hospital legal status at admission and discharge, history of involuntary ECT, and final Clinical Global Impression-Severity scores positively predicted, but the year of treatment negatively predicted the chance of completing ECT treatment under involuntary consent. CONCLUSIONS: The new MHA appeared to have been associated with reduced ECT use and lower rate of completing ECT under involuntary consent.


Asunto(s)
Terapia Electroconvulsiva/estadística & datos numéricos , Salud Mental/legislación & jurisprudencia , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Victoria
18.
Alzheimer Dis Assoc Disord ; 32(3): 190-196, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29561277

RESUMEN

BACKGROUND: Given the long preclinical disease course of Alzheimer disease (AD) pathology, novel treatments may be more efficacious if administered before the emergence of dementia. Thus, accurate prediction of who will develop AD dementia is of key importance in selecting individuals for trials of treatment and may become crucial for future selection of patients for therapy. METHODS: As part of the Australian Imaging, Biomarkers and Lifestyle Flagship Study of Ageing, 901 individuals who did not have dementia were recruited. We assigned individuals according to Petersen criteria and Winblad criteria for Mild Cognitive Impairment (MCI) at baseline. We then stratified individuals with amnestic MCI into 2 groups according to the severity of their memory impairment on baseline neuropsychological assessment. Incident diagnosis of AD dementia was established by consensus of an expert panel at 36 months. RESULTS: At 36 months, 725 (80.5%) participants were followed up, 54 (7.4%) of whom developed AD dementia. Subjects with amnestic MCI according to Petersen criteria were more likely to develop AD dementia [positive predictive value; PPV, 24.1%; 95% confidence interval (CI), 18.4-30.6] than healthy controls (PPV, 1.0%; 95% CI, 0.3-2.3). Winblad criteria were also effective, with multiple domain amnestic MCI being most accurate at predicting AD dementia (PPV, 47.3%; 95% CI, 33.7-61.2). Finally, more severe amnestic impairment below the median was useful for predicting the development of AD dementia in single domain amnestic MCI (PPV, 28.1%; 95% CI, 17.0-41.5) and in multiple domain amnestic MCI (PPV, 65.7%; 95% CI, 47.8-80.9). CONCLUSIONS: Memory impairment per se, impairment in multiple cognitive domains and severity of memory impairment were all associated with greater risk of developing AD dementia in this sample. Characterizing the severity of memory impairment may provide prognostic stratification within Petersen or Winblad taxonomies of amnestic MCI.


Asunto(s)
Amnesia/diagnóstico , Disfunción Cognitiva/diagnóstico , Demencia/diagnóstico , Progresión de la Enfermedad , Índice de Severidad de la Enfermedad , Anciano , Enfermedad de Alzheimer/diagnóstico , Australia , Biomarcadores , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas/estadística & datos numéricos , Estudios Prospectivos , Factores de Riesgo
19.
J Neuropsychiatry Clin Neurosci ; 30(2): 115-121, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29183234

RESUMEN

Huntington's disease (HD) is an inherited neurodegenerative disease involving motor, cognitive, and psychiatric/behavioral impairments that will eventually affect work role functioning. Few objective data exist regarding predictors of workplace disability in HD. The authors explored the predictors of work impairment and disability in a cross-sectional cohort of 656 employed, premanifest HD (preHD) individuals. In this cohort-the majority of whom were female, urban-dwelling, married/partnered, and working full-time, with minimal cognitive impairment, good function, minimal motor abnormality, and no indication of significant mental health issues-the number of participants who reported that they had missed work due to HD was low (2.4%). However, 12% of the study sample reported experiencing impairment while working due to preHD, 12.2% reported work-related activity impairment due to preHD, and 12.7% reported impairment in their overall work ability. Higher numbers of CAG repeats on the mutant allele and having more motor symptoms were associated with significantly higher odds of experiencing workplace impairment. Importantly, several modifiable factors were also found to predict workplace disability. Specifically, higher levels of anxiety symptoms were associated with significantly higher odds of experiencing workplace impairment. Good mental and physical health served as protective factors, where good physical health was associated with 6% lower odds of experiencing impairment or missing work time and good mental health was associated with of 10%-12% lower. The results provide important new knowledge for the development of future targeted intervention trials to support preHD individuals in maintaining their work roles as long as possible.


Asunto(s)
Empleo , Enfermedad de Huntington/prevención & control , Absentismo , Adulto , Estudios de Cohortes , Estudios Transversales , Evaluación de la Discapacidad , Femenino , Predicción , Indicadores de Salud , Humanos , Enfermedad de Huntington/genética , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Factores Socioeconómicos , Encuestas y Cuestionarios , Lugar de Trabajo
20.
Int J Geriatr Psychiatry ; 33(4): 576-582, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29105149

RESUMEN

OBJECTIVE: Improving and minimizing challenging behaviors seen in psychiatric conditions, including behavioral and psychological symptoms of dementia are important in the care of people with these conditions. Yet there is a lack of systematic evaluation of these as a part of routine clinical care. The Neuropsychiatric Inventory is a validated and reliable tool for rating the severity and disruptiveness of challenging behaviors. We report on the evaluation of a Web-based symptom assessment manager (SAM), designed to address the limitation of previous tools using some of the Neuropsychiatric Inventory functions, to monitor behaviors by staff caring for people with dementia and other psychiatric conditions in inpatient and residential care settings. METHODS: The SAM was piloted in an 8-bed inpatient neuropsychiatry unit over 5 months. Eleven nurses and 4 clinicians were trained in usage of SAM. Primary outcomes were usage of SAM and perceived usability, utility, and acceptance of SAM. Secondary outcomes were the frequencies of documented behavior. Usage data were analyzed using chi-square and logistic regression analyses. RESULTS: The SAM was used for all admitted patients regardless of diagnosis, with a usage rate of 64% for nurses regularly employed in the unit. Staff provided positive feedback regarding the utility of SAM. CONCLUSIONS: The SAM appeared to offer individualized behavior assessment by providing a quick, structured, and standardized platform for assessing behavior in a real-world setting. Further research would involve trialing SAM with more staff in alternative settings such as in home or residential care settings.


Asunto(s)
Atención a la Salud/métodos , Demencia/psicología , Internet , Trastornos Mentales/diagnóstico , Evaluación de Síntomas/métodos , Actitud del Personal de Salud , Estudios de Factibilidad , Femenino , Humanos , Masculino , Proyectos Piloto , Problema de Conducta/psicología
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