RESUMO
BACKGROUND: Awareness and understanding of dementia remain limited in ethnically diverse populations in multicultural societies due to culturally inappropriate and inaccessible information. OBJECTIVE: To establish the impact, helpers and hinderers of an online multilingual dementia awareness initiative co-created with and for English, Arabic and Vietnamese speaking people. DESIGN: A case study using mixed methods to assess the impact and implementation of an information session on dementia knowledge. SETTING AND PARTICIPANTS: The study was conducted with English, Arabic and Vietnamese speaking individuals in Canterbury-Bankstown, Australia. INTERVENTION STUDIED: A dementia alliance co-created an online multilingual dementia information session, which was delivered synchronously in English, Arabic and Vietnamese by trained facilitators. MAIN OUTCOME MEASURES: In-session group discussions, quizzes and a postsession survey assessed the impact on dementia knowledge. A postimplementation focus group explored the factors that helped and hindered the initiative. RESULTS: The online dementia information session successfully supported participants understanding of dementia causes, impacts and care strategies. The initiative was hindered by competing priorities and limited accessibility to target audiences, while it was helped by the support of an established organisation and feedback mechanisms. DISCUSSION: Ongoing dementia education and awareness-raising campaigns that are culturally sensitive are needed in communities to promote dementia literacy and help-seeking. CONCLUSIONS: An online multilingual dementia information session can be an effective way to improve dementia literacy and advocate for change in multicultural communities. PATIENT OR PUBLIC CONTRIBUTION: English, Arabic and Vietnamese speaking members of the Canterbury Bankstown Dementia Alliance participated in the co-creation and evaluation of this initiative.
Assuntos
Diversidade Cultural , Demência , Humanos , Vietnã , Austrália , Educação ContinuadaRESUMO
Sokolov described both phasic and tonic aspects of the Orienting Reflex (OR), but subsequent research and theory development has focussed primarily on the phasic OR at the expense of the tonic OR. The present study used prestimulus skin conductance level (SCL) during a dishabituation paradigm to model the tonic OR, examining its amplitude patterning over repeated standard stimulus presentations and a change stimulus. We expected sensitisation (increased amplitude) following the initial and change trials, and habituation (decrement) over the intervening trials. Prestimulus EEG alpha level was explored as a potential central measure of the tonic OR (as an inverse correlate), examining its pattern over stimulus repetition and change in relation to the SCL model. We presented a habituation series of innocuous auditory stimuli to two groups (each N = 20) at different ISIs (Long 13-15 s and Short 5-7 s) and recorded electrodermal and EEG data during two counterbalanced conditions; Indifferent: no task requirements; Significant: silent counting. Across groups and conditions, prestimulus SCLs and alpha amplitudes generally showed the expected trials patterns, confirming our main hypotheses. Findings have important implications for including the assessment of Sokolov's tonic OR in modelling central and autonomic nervous system interactions of fundamental attention and learning processes.
Assuntos
Resposta Galvânica da Pele , Habituação Psicofisiológica , Humanos , Habituação Psicofisiológica/fisiologia , Orientação/fisiologia , Reflexo/fisiologia , Atenção/fisiologia , Estimulação AcústicaRESUMO
BACKGROUND: Peritoneal dialysis (PD)-related infections, such as peritonitis, exit site, and tunnel infections, substantially impair the sustainability of PD. Accordingly, PD-related infection is the top-priority research outcome for patients and caregivers. While PD nurse trainers teach patients to perform their own PD, PD training curricula are not standardized or informed by an evidentiary base and may offer a potential approach to prevent PD infections. The Targeted Education ApproaCH to improve Peritoneal Dialysis outcomes (TEACH-PD) trial evaluates whether a standardized training curriculum for PD nurse trainers and incident PD patients based on the International Society for Peritoneal Dialysis (ISPD) guidelines reduces PD-related infections compared to usual training practices. METHODS: The TEACH-PD trial is a registry-based, pragmatic, open-label, multi-center, binational, cluster-randomized controlled trial. TEACH-PD will recruit adults aged 18 years or older who have not previously undergone PD training at 42 PD treatment units (clusters) in Australia and New Zealand (ANZ) between July 2019 and June 2023. Clusters will be randomized 1:1 to standardized TEACH-PD training curriculum or usual training practice. The primary trial outcome is the time to the first occurrence of any PD-related infection (exit site infection, tunnel infection, or peritonitis). The secondary trial outcomes are the individual components of the primary outcome, infection-associated catheter removal, transfer to hemodialysis (greater than 30 days and 180 days), quality of life, hospitalization, all-cause death, a composite of transfer to hemodialysis or all-cause death, and cost-effectiveness. Participants are followed for a minimum of 12 months with a targeted average follow-up period of 2 years. Participant and outcome data are collected from the ANZ Dialysis and Transplant Registry (ANZDATA) and the New Zealand Peritoneal Dialysis (NZPD) Registry. This protocol follows the Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) guidelines. DISCUSSION: TEACH-PD is a registry-based, cluster-randomized pragmatic trial that aims to provide high-certainty evidence about whether an ISPD guideline-informed standardized PD training curriculum for PD nurse trainers and adult patients prevents PD-related infections. TRIAL REGISTRATION: ClinicalTrials.gov NCT03816111. Registered on 24 January 2019.
Assuntos
Diálise Peritoneal , Peritonite , Adulto , Humanos , Currículo , Estudos Multicêntricos como Assunto , Diálise Peritoneal/efeitos adversos , Peritonite/diagnóstico , Peritonite/etiologia , Peritonite/prevenção & controle , Ensaios Clínicos Pragmáticos como Assunto , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
In this systematic review and meta-analysis, a normative dataset is generated from the published literature on the kynurenine pathway in control participants extracted from case-control and methodological validation studies. Study characteristics were mapped, and studies were evaluated in terms of analytical rigour and methodological validation. Meta-analyses of variance between types of instruments, sample matrices and metabolites were conducted. Regression analyses were applied to determine the relationship between metabolite, sample matrix, biological sex, participant age and study age. The grand mean concentrations of tryptophan in the serum and plasma were 60.52 ± 15.38 µM and 51.45 ± 10.47 µM, respectively. The grand mean concentrations of kynurenine in the serum and plasma were 1.96 ± 0.51 µM and 1.82 ± 0.54 µM, respectively. Regional differences in metabolite concentrations were observed across America, Asia, Australia, Europe and the Middle East. Of the total variance within the data, mode of detection (MOD) accounted for up to 2.96%, sample matrix up to 3.23%, and their interaction explained up to 1.53%; the latter of which was determined to be negligible. This review was intended to inform future empirical research and method development studies and successfully synthesised pilot data. The pilot data reported in this study will inform future precision medicine initiatives aimed at targeting the kynurenine pathway by improving the availability and quality of normative data.
RESUMO
BACKGROUND: Dementia is associated with cognitive and functional decline that significantly impacts quality of life. There is currently no cure for dementia, thus, it is important to manage dementia in the early stages and delay deterioration. Previous studies have documented a range of health benefits of Tai Chi in people with early-stage dementia, however, none have systematically integrated these effects with their underlying mechanisms. The aims of this study were to (1) identify the neurocognitive, psychological, and physical health benefits of Tai Chi oi people with early-stage dementia, and (2) explore the underlying mechanisms of these effects. METHODS: We searched systematic reviews (SRs) and randomised control trials (RCTs) on Tai Chi for adults aged 50 years and older with mild cognitive impairment (MCI) or early-stage dementia in MEDLINE, PubMed, Cochrane Library, EMBASE, and major Chinese databases. No language or publication restrictions were applied. Risk of bias was assessed. RESULTS: Eight SRs with meta-analyses and 6 additional published RCTs revealed inconsistent findings of Tai Chi on improving global cognitive function, attention and executive function, memory and language, and perceptual-motor function. There was no significant between-group difference in depressive symptoms. The results from the RCTs showed that Tai Chi can reduce arthritis pain and slow the progress of dementia. No studies on MCI or early-stage dementia investigating the underlying mechanisms of Tai Chi were identified. Instead, nine mechanistic studies on healthy adults were included. These suggested that Tai Chi may improve memory and cognition via increased regional brain activity, large-scale network functional connectivity, and regional grey matter volume. CONCLUSION: The effects of Tai Chi on neurocognitive outcomes in people with MCI and early-stage dementia are still inconclusive. Further high-quality clinical trials and mechanistic studies are needed to understand if and how Tai Chi may be applied as a successful intervention to delay deterioration and improve the quality of life in people with an increased risk of cognitive decline.
Assuntos
Disfunção Cognitiva , Demência , Tai Chi Chuan , Adulto , Humanos , Pessoa de Meia-Idade , Idoso , Tai Chi Chuan/métodos , Disfunção Cognitiva/terapia , Cognição , Função Executiva , Demência/terapiaRESUMO
People with dementia from culturally and linguistically diverse backgrounds often face poor health and social outcomes such as stigma, depression, and reduced help seeking behaviours. Dementia friendly communities have been shown to reduce stigma, and the gap in health and social outcomes for people impacted by dementia. Despite the large presence of established dementia friendly communities, their functioning in multicultural communities remains underexplored. The aim of this review was to identify the barriers and facilitators of cultural inclusivity to inform the development of a multicultural dementia friendly community. We systematically searched for academic and grey literature regarding existing and prospective age or dementia-friendly communities that engaged with culturally and linguistically diverse communities. Using the matrix method, data on the barriers and facilitators to engagement were extracted. Papers were analysed for common themes and findings were integrated in a narrative format. A total of 3,164 papers were identified, 11 of which met inclusion criteria. There were 6 dementia friendly communities in North America, 3 in Europe, 1 in Australia and 1 in Asia. Analyses revealed that barriers to cultural inclusivity were centered around the accessibility of services, sociocultural factors, and the environment, including issues such as low awareness of dementia and stigma, language barriers, isolation, and the inaccessibility of transport and buildings. Leveraging existing cultural leaders and social structures to target culturally and linguistically diverse populations and develop tailored dementia friendly initiatives were key facilitators. To foster cultural inclusivity in dementia friendly communities, a culturally specific lens that addresses these barriers and utilises facilitators must be applied from the design stage through to implementation and evaluation.
Assuntos
Demência , Humanos , Estudos Prospectivos , Idioma , Diversidade Cultural , AustráliaRESUMO
INTRODUCTION: This study primarily aimed to evaluate the efficacy and safety of SaiLuoTong (SLT) on cognition in mild cognitive impairment (MCI). METHODS: Community-dwelling people with MCI aged ≥60 years were randomly assigned to 180 mg/day SLT or placebo for 12 weeks. RESULTS: Thirty-nine participants were randomized to each group (N = 78); 65 were included in the final analysis. After 12 weeks, the between-groups difference in Logical Memory delayed recall scores was 1.40 (95% confidence interval [CI]: 0.22 to 2.58; P = 0.010); Delis-Kaplan Executive Function System Trail Making Test Condition 4 switching and contrast scaled scores were 1.42 (95% CI: -0.15 to 2.99; P = 0.038) and 1.56 (95% CI: -0.09 to 3.20; P = 0.032), respectively; Rey Auditory Verbal Learning Test delayed recall was 1.37 (95% CI: -0.10 to 2.84; P = 0.034); and Functional Activities Questionnaire was 1.21 (95% CI: -0.21 to 2.63; P = 0.047; P < 0.001 after controlling for baseline scores). DISCUSSION: SLT is well tolerated and may be useful in supporting aspects of memory retrieval and executive function in people with MCI. Highlights: SaiLuoTong (SLT) improves delayed memory retrieval and executive function in people with mild cognitive impairment (MCI).SLT is well tolerated in people ≥ 60 years.The sample of community dwellers with MCI was well characterized and homogeneous.
RESUMO
Introduction: Well-integrated community aged care services empower and enable older people to live and thrive in the community by supporting activities of daily living. To inform integrated community aged care service planning and delivery in South Western Sydney Australia, a needs assessment with consumers (i.e., older people), their caregivers, and healthcare providers was conducted. This study details the comprehensive and inclusive needs assessment process undertaken, with a focus on translating the findings into practice to improve integrated care. Description: Qualitative interviews and community forum-style focus groups engaged 160 stakeholders including GPs, older people, and aged care workers. Transcribed data were thematically coded using an inductive approach. Data were organised into four themes: 1) access to community aged care services; (2) healthcare and medical needs; (3) social concerns and needs; and (4) education and information needs. Discussion: The needs assessment undertaken identified unmet needs, gaps in service provision, and recommendations for improving integrated community aged care services. Conclusion: Findings are novel in the context of South Western Sydney, Australia. The study design, methods employed, and lessons learned can be adapted internationally for future needs assessments to inform policy, strategies, and integrated aged care service delivery.
RESUMO
BACKGROUND: Subjective cognitive impairment (SCI) substantially increases dementia risk and is often conceptualised as the preclinical asymptomatic phase of the cognitive decline continuum. Due to the lack of pharmacological interventions available to treat SCI and reduce dementia risk, and the popularity of herbal and nutritional medicines, the primary aim of this review was to investigate the efficacy on cognitive function and safety of herbal and nutritional medicines (relative to a control) for older adults with and without SCI. The secondary aims were to describe the study characteristics and assess the methodological quality of included studies. METHOD: Five databases (Cochrane, MEDLINE, CINAHL, PsycInfo, and EMBASE) were searched from database inception with weekly alerts established until review finalisation on 18 September 2022. Articles were eligible if they included the following: study population of older adults with and without SCI, herbal and nutritional medicines as an intervention, evaluated cognitive outcomes and were randomised control trials. RESULTS: Data were extracted from 21/7666 eligible full-text articles, and the risk of methodological bias was assessed (with SCI = 9/21; without SCI = 12/21). Most studies (20/21) employed parallel, randomised, placebo-controlled designs and were 12 weeks in length. Herbal supplements were widely used (17/21), namely a form of Ginkgo biloba (8/21) or Bacopa monnieri (6/21). Measures of cognition varied across studies, with 14/21 reporting improvements in at least one domain of cognitive functioning over time, in the intervention group (compared to control). A total of 14/21 studies were deemed as having an overall high methodological risk of bias, 6/21 had some concerns, and only one study (using an SCI population) was assessed as having a low risk of methodological bias. CONCLUSIONS: Overall, this review found that there is a low quality of evidence regarding the efficacy of cognitive function and safety of herbal and nutritional medicines for older adults with and without SCI, due to a high risk of bias across studies. Additionally, further work needs to be done in classifying and understanding SCI and selecting appropriate trial primary outcomes before future studies can more accurately determine the efficacy of interventions for this population.
Assuntos
Disfunção Cognitiva , Demência , Humanos , Idoso , Cognição , Disfunção Cognitiva/tratamento farmacológico , Bases de Dados Factuais , MEDLINE , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
Although the P300 event-related potential (ERP) is the most likely central measure of Sokolov's Orienting Reflex (OR), there are few systematic comparisons with the skin conductance response (SCR), the "gold standard" electrodermal OR measure. We examine habituation, stimulus significance, and inter-stimulus interval (ISI) effects in SCRs and components of the P300 from single-trial ERPs in an auditory dishabituation paradigm. Single trial ERP components were separated by temporal principal components analysis, and five components of the P300 were examined as potential phasic OR measures: P3a, P3b, Novelty P3, and two Slow Waves (SW1, SW2). Across the factors of ISI and significance, SCRs showed decrement over trials, recovery at a deviant, and dishabituation at the subsequent standard. This general pattern was not present in any of the components of the P300. SCRs were also larger to significant stimuli and at the long ISI; effects differed between P300 components. The electrodermal SCR showed the complete profile over trials expected of the phasic OR, and was enhanced by stimulus significance, confirming it as the model measure of Sokolov's phasic OR. Components of the P300 failed to match this profile, but instead appear to reflect different aspects of the stimulus processing involved in OR elicitation.
Assuntos
Laparoscopia , Reflexo , Resposta Galvânica da Pele , Potenciais Evocados P300 , AprendizagemRESUMO
Introduction: Exercise is recognized as a modifiable lifestyle factor that can mitigate cognitive decline and dementia risk. While the benefits of exercise on cognitive aging have been reported on extensively, neuronal effects in adults experiencing cognitive decline have not been systematically synthesized. The aim of this systematic review was to assess the effects of exercise on cognition and brain function in people with cognitive decline associated with dementia risk. Method: A systematic search was conducted for randomized controlled trials of ≥ 4 weeks exercise (aerobic, resistance, or mind-body) that assessed cognition and brain function using neuroimaging and neurophysiological measures in people with subjective or objective cognitive decline. Study characteristics and brain function effects were narratively synthesized, while domain-specific cognitive performance was subjected to meta-analysis. Study quality was also assessed. Results: 5,204 records were identified and 12 unique trials met the eligibility criteria, representing 646 adults classified with cognitive frailty, mild or vascular cognitive impairment. Most interventions involved 40-minute sessions conducted 3 times/week. Exercise improved global cognition (g = -0.417, 95% CI, -0.694 to -0.140, p = 0.003, I2 = 43.56%), executive function (g = -0.391, 95% CI, -0.651 to -0.131, p = 0.003, I2 = 13.28%), but not processing speed or general short-term memory (both p >0.05). Across fMRI and ERP studies, significant neuronal adaptations were found with exercise cf. control throughout the brain and were linked with improved global cognition, memory, and executive function. Cerebral blood flow was also found to improve with 24 weeks of exercise, but was not linked with cognitive changes. Discussion: The cognitive improvements associated with exercise are likely driven by increased metabolic activity, cerebrovascular mechanisms, and neuroplasticity throughout the brain. Our paper shows the promise in, and need for, high-quality trials integrating cognitive and brain function measures to elucidate the functional relationship between exercise and brain health in populations with a high risk of dementia. Systematic review registration: PROSPERO, identifier: CRD42022291843.
RESUMO
Despite the positive relationship between anthocyanin-rich foods and cognitive health, a dietary deficit exists in older adults. Effective interventions require an understanding of people's dietary behaviors situated in social and cultural contexts. Therefore, the aim of this study was to explore older adults' perceptions about increasing their consumption of anthocyanin-rich foods for cognitive health. Following an educational session and the provision of a recipe and information book, an online survey and focus groups with Australian adults aged 65 years or older (n = 20) explored the barriers and enablers towards eating more anthocyanin-rich foods and potential strategies to achieve dietary change. An iterative, qualitative analysis identified the themes and classified the barriers, enablers and strategies onto the Social-Ecological model levels of influence (individual, interpersonal, community, society). Enabling factors included a desire to eat healthily, taste preference and familiarity of anthocyanin-rich foods (individual), social support (community), and the availability of some anthocyanin-rich foods (society). The barriers included budget, dietary preferences and motivation (individual), household influences (interpersonal), limited availability and access to some anthocyanin-rich foods (community) and the cost and the seasonal variability (society). The strategies included increasing individual-level knowledge, skills, and confidence in utilizing anthocyanin-rich foods, educational initiatives about the potential cognitive benefits, and advocating to increase access to anthocyanin-rich foods in the food supply. This study provides for the first time, insight into the various levels of influence impacting older adults' ability to consume an anthocyanin-rich diet for cognitive health. Future interventions should be tailored to reflect the barriers and enablers and to provide targeted education about anthocyanin-rich foods.
Assuntos
Antocianinas , Dieta , Humanos , Idoso , Pesquisa Qualitativa , Austrália , CogniçãoRESUMO
OBJECTIVE: Endometriosis is associated with neuroplastic changes in cognitive control and pain processing networks. This was the first study to assess eyes-closed resting electroencephalogram (EEG) oscillatory amplitudes in women with endometriosis compared to healthy controls, and explore the relationship with chronic pelvic pain. METHODS: Women with endometriosis-related chronic pelvic pain and individually age-matched pain-free controls (N = 20 per group) documented pelvic pain for 28 days before having continuous EEG recorded during a 2 min eyes closed resting state. Natural frequency components were extracted for each group using frequency principal components analysis. Corresponding components were assessed for group differences and correlated with pain scores. RESULTS: Relative to controls, the endometriosis group had greater component amplitudes in delta (0.5 Hz) and beta (â¼28 Hz), and reduced alpha (â¼10 Hz). Delta and beta amplitudes were positively associated with pain severity, but only beta maintained this association after delta-beta amplitude coupling was controlled. CONCLUSIONS: Enhanced resting delta and beta amplitudes were seen in women with endometriosis experiencing chronic pelvic pain. This delta-beta coupling varied with pelvic pain severity, perhaps reflecting altered cholinergic tone and/or stress reactivity. SIGNIFICANCE: Endometriosis-related changes in central pain processing demonstrate a distinct neuronal oscillatory signature detectable at rest.
Assuntos
Dor Crônica , Endometriose , Humanos , Feminino , Recém-Nascido , Endometriose/complicações , Dor Pélvica/etiologia , Dor Pélvica/complicações , Dor Crônica/diagnóstico , Dor Crônica/etiologia , Eletroencefalografia , Medição da DorRESUMO
BACKGROUND: Yoga is a mind-body practice that can elicit robust health and wellbeing effects for older adults. As a result, there is increased public and academic interest into the potential benefits of yoga for older people with mild cognitive impairment (MCI) and dementia. METHODS: Literature searches in five databases (CENTRAL, PubMed and EBSCOHost indexing CINAHL Plus, PsycINFO, Psychology and Behavioural Sciences Collection) were conducted from the databases' date of inception through to 4 September 2020 to identify pre-post single and multigroup studies of yoga-based interventions involving people with MCI or dementia. Effects on cognitive, mental, and physical health were evaluated, as was safety and study quality. RESULTS: Database searches identified 1431 articles. Of these, 10 unique studies met inclusion criteria (total 421 participants). Four studies each implemented Kundalini yoga and chair yoga, while two employed Hatha yoga. Most programs ran for 12 weeks (n = 5) and compared yoga to a control group (n = 5). Most studies reported improved cognition, mood, and balance. However, these effects were marred by the high risk of bias identified in all articles. Four studies assessed safety, with one instance of dizziness reported. CONCLUSIONS: In this emerging field, these studies show that yoga may be safe and beneficial for the wellbeing of people with MCI or dementia. More high quality randomised controlled trials are needed to improve the evidence-base and overcome the limitations of existing studies.
Assuntos
Disfunção Cognitiva , Demência , Yoga , Humanos , Idoso , Disfunção Cognitiva/terapia , Cognição , Demência/terapiaRESUMO
The NoGo P3 event-related potential (ERP) component is often related to response inhibition, although its function in equiprobable Go/NoGo tasks is debated. Previous findings concerning the auditory equiprobable NoGo P3 (or P3a) could be distorted by averaging latency-variable ERP components. This study aimed to control NoGo P3 latency jitter to investigate the component's relationship with inhibitory demands and its neuronal sources across trials. P3 latency jitter was controlled using a novel procedure to enable single-trial P3 quantification across 126 healthy young adults (Mage = 20.3, SD = 2.8 years) using principal components analysis. NoGo inhibitory demands and performance were measured using the Lateralised Readiness Potential and error rates, respectively. The stimulus-locked P3 (SL-P3) was also analysed to assess the 'blurring effect' (i.e., smearing) associated with averaging latency-variable ERP trial data. A Spearman's rank correlation across 4700 NoGo trials demonstrated that the relationship between latency-adjusted P3 (LA-P3) and inhibitory demands was inconsequential. The cortical sources associated with LA-P3, using eLORETA, were in the premotor and prefrontal cortices, cingulate, and precuneus. SL-P3 was smaller than LA-P3, and that difference was positively related to P3 latency jitter; its source solution was also limited to lower activation in the prefrontal cortex. SL-P3 was not related to inhibitory demands or performance. This study indicates that NoGo P3 should not index response inhibition in auditory equiprobable tasks. Instead, the findings support a neuroinhibition account relating NoGo P3 to attention. Blurring effects were also shown to impact a standard ERP measure and its source solution, encouraging ERP latency-adjustment in future research.
Assuntos
Potenciais Evocados , Inibição Psicológica , Adulto , Humanos , Adulto Jovem , Eletroencefalografia/métodos , Potenciais Evocados P300 , Potenciais Evocados/fisiologia , Análise de Componente Principal , Tempo de Reação/fisiologiaRESUMO
Alzheimer's disease (AD) is a debilitating neurodegenerative disease characterized by declining cognition and behavioral impairment, and hallmarked by extracellular amyloid-ß plaques, intracellular neurofibrillary tangles (NFT), oxidative stress, neuroinflammation, and neurodegeneration. There is currently no cure for AD and approved treatments do not halt or slow disease progression, highlighting the need for novel therapeutic strategies. Importantly, the endocannabinoid system (ECS) is affected in AD. Phytocannabinoids, including cannabidiol (CBD) and Δ9-tetrahydrocannabinol (THC), interact with the ECS, have anti-inflammatory, antioxidant, and neuroprotective properties, can ameliorate amyloid-ß and NFT-related pathologies, and promote neurogenesis. Thus, in recent years, purified CBD and THC have been evaluated for their therapeutic potential. CBD reversed and prevented the development of cognitive deficits in AD rodent models, and low-dose THC improved cognition in aging mice. Importantly, CBD, THC, and other phytochemicals present in Cannabis sativa interact with each other in a synergistic fashion (the "entourage effect") and have greater therapeutic potential when administered together, rather than individually. Thus, treatment of AD using a multi-cannabinoid strategy (such as whole plant cannabis extracts or particular CBD:THC combinations) may be more efficacious compared to cannabinoid isolate treatment strategies. Here, we review the current evidence for the validity of using multi-cannabinoid formulations for AD therapy. We discuss that such treatment strategies appear valid for AD therapy but further investigations, particularly clinical studies, are required to determine optimal dose and ratio of cannabinoids for superior effectiveness and limiting potential side effects. Furthermore, it is pertinent that future in vivo and clinical investigations consider sex effects.
RESUMO
Venous thromboembolism (VTE) is a leading cause of morbidity and mortality in the geriatric post-surgical population, and its prevention is a public health priority. The aim of this study was to assess the use of VTE risk screening and training protocols, and VTE awareness in the Australian residential aged care sector. A cross-sectional survey was conducted that was directed at facility and policy managers of community aged care facilities with ≥10 residents in two Australian states and territories. Forty-nine of 301 (16.3%) providers responded, representing 249/871 (28.6%) aged care facilities and 20,958/66,121 (31.7%) residents. VTE risk screening protocols were used by 1.2% of facilities (3/249), and 79.5% (198/249) were unaware that VTE is an issue in this population. Only 0.8% (2/249) were aware that risk screening and prophylaxis is required to prevent VTE; none were acting upon this. No facility had specific VTE risk assessment or prevention processes in place. Most residential aged care facilities surveyed do not have VTE risk screening protocols and were unaware of the risk that may be associated with this omission. These results have implications for development and implementation of national and international VTE risk screening guidelines in community care.