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1.
Health Soc Care Community ; 30(5): e2022-e2032, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-34747085

RESUMO

Frailty is a condition characterised by increased vulnerability and decline of physical and cognitive reserves, most often affecting older people. This can lead to a cascade of repeated hospitalisations, further decline and ultimately loss of independence. Frailty and pre-frailty are modifiable; interventions such as physical exercise, cognitive training, social connection and improved nutrition, especially in a group setting, can mitigate frailty. Existing healthcare guidelines for managing frailty focus predominantly on falls, delirium, acute confusion and immobility. Uptake of referrals to services following hospital discharge is sub-optimal, indicating that a more proactive, person-centred and integrated approach to frailty is required. The aim was to co-design a program to help pre-frail and frail older people return to their homes following hospital discharge by increasing resilience and promoting independence. We engaged healthcare consumers, and healthcare professionals from three tertiary hospitals in metropolitan Melbourne (Alfred Hospital, Monash Health and Cabrini Health), and from Bolton Clarke home-based support services. Co-design is a process whereby the input of service consumers is included in the development of a program. In the healthcare sector, co-design involves discussions with healthcare consumers alongside healthcare professionals to identify issues and build knowledge to ultimately work on improving the healthcare system. From co-design sessions with 23 healthcare consumers and 17 healthcare professionals, it was apparent that frailty was perceived to affect physical and mental well-being. The co-design process resulted in refinement of the Being Your Best program to incorporate a holistic approach, addressing four domains supported by research evidence, to improve health and well-being through community- or home-based physical activity, cognitive training, social support and nutritional support. Being Your Best was developed in consultation with older people with lived experience as well as healthcare professionals and aims to mitigate the effects of frailty, and will now be tested for feasibility and acceptability.


Assuntos
Fragilidade , Idoso , Austrália , Atenção à Saúde , Idoso Fragilizado , Fragilidade/terapia , Humanos , Vida Independente
2.
BMC Health Serv Res ; 21(1): 699, 2021 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-34271930

RESUMO

BACKGROUND: Aboriginal and/or Torres Strait Islander people experience dementia at a rate three to five times higher than the general Australian population. Aboriginal Community Controlled Health Services (ACCHSs) have a critical role to play in recognising symptoms of cognitive impairment, facilitating timely diagnosis of dementia, and managing the impacts of dementia. Little is known about the barriers and enablers to Aboriginal people receiving a timely dementia diagnosis and appropriate care once diagnosed. This study aims to explore, from the perspective of healthcare providers in the ACCHS sector across urban, regional and remote communities, the barriers and enablers to the provision of dementia diagnosis and care. METHODS: A qualitative study involving semi-structured interviews with staff members working in the ACCHS sector. Aboriginal Health Workers, General Practitioners, nurses, practice or program managers, and Chief Executive Officers were eligible to participate. Consenting ACCHS staff completed a telephone interview administered by a trained interviewer. Interviews were audio-recorded, transcribed, and analysed using qualitative content analysis. RESULTS: Sixteen staff from 10 ACCHSs participated. Most participants perceived their communities had a limited understanding of dementia. Symptoms of dementia were usually noticed by the GP or another healthcare worker at the ACCHS who had an ongoing relationship with the person. Most participants reported that their service had established referral pathways with either hospital-based geriatricians, geriatricians located with aged care assessment teams, or specialists who visited communities periodically. Key enablers to high quality dementia care included the use of routine health assessments as a mechanism for diagnosis; relationships within communities to support diagnosis and care; community and family relationships; comprehensive and holistic care models; and the use of tailored visual resources to support care. Key barriers to high quality care included: denial and stigma; dementia being perceived as a low priority health condition; limited community awareness and understanding of dementia; lack of staff education and training about dementia; and numerous gaps in service delivery. CONCLUSIONS: Substantially increased investments in supporting best-practice diagnosis and management of dementia in Aboriginal communities are required. ACCHSs have key strengths that should be drawn upon in developing solutions to identified barriers to care.


Assuntos
Demência , Serviços de Saúde do Indígena , Idoso , Austrália , Demência/diagnóstico , Demência/terapia , Pessoal de Saúde , Humanos , Havaiano Nativo ou Outro Ilhéu do Pacífico
3.
Dementia (London) ; 19(6): 1927-1954, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30526036

RESUMO

OBJECTIVE: Aged care services increasingly respond to the needs of people with dementia. Non-pharmacological approaches are preferable to reduce responsive behaviours, improve/maintain functional capacity and reduce emotional disorders. This rapid review of systematic reviews aimed to consolidate the evidence for non-pharmacological interventions and determine outcome effectiveness. METHODS: Systematic review literature was comprehensively searched for non-pharmacological interventions for dementia in residential care. Quality ratings used adapted GRADE methodology, and ease of implementation assessed. RESULTS: Of 629 abstracts screened, 81 full-text articles were retrieved, 38 articles included. The strongest evidence for reducing responsive behaviours was music, sensory stimulation, simulated presence and validation therapies. Exercise and light therapy improved/maintained activities of daily living, while cognitive stimulation and reminiscence improved cognition. Strongest evidence for reducing emotional disorders was music, psychological interventions and reminiscence. CONCLUSION: Much evidence of varying quality exists, with resource-constrained residential care providers now able to make evidence-based decisions about non-pharmacological interventions.


Assuntos
Terapia Cognitivo-Comportamental , Demência , Música , Atividades Cotidianas , Idoso , Demência/terapia , Humanos , Revisões Sistemáticas como Assunto
4.
Proc Natl Acad Sci U S A ; 116(44): 22269-22274, 2019 10 29.
Artigo em Inglês | MEDLINE | ID: mdl-31611400

RESUMO

Adrenocortical carcinomas (ACCs) are rare and highly malignant cancers associated with poor survival of patients. Currently, mitotane, a nonspecific derivative of the pesticide DDT (1,1-(dichlorobiphenyl)-2,2-dichloroethane), is used as the standard treatment, but its mechanism of action in ACCs remains elusive. Here we demonstrate that the human ACC NCI-H295R cell line is remarkably sensitive to induction of ferroptosis, while mitotane does not induce this iron-dependent mode of regulated necrosis. Supplementation with insulin, transferrin, and selenium (ITS) is commonly used to keep NCI-H295R cells in cell culture. We show that this supplementation prevents spontaneous ferroptosis, especially when it contains polyunsaturated fatty acids (PUFAs), such as linoleic acid. Inhibitors of apoptosis (zVAD, emricasan) do not prevent the mitotane-induced cell death but morphologically prevent membrane blebbing. The expression of glutathione peroxidase 4 (GPX4) in H295R cells, however, is significantly higher when compared to HT1080 fibrosarcoma cells, suggesting a role for ferroptosis. Direct inhibition of GPX4 in H295R cells led to high necrotic populations compared to control, while cotreatment with ferrostatin-1 (Fer-1) completely reverted ferroptosis. Interestingly, the analysis of public databases revealed that several key players of the ferroptosis pathway are hypermethylated and/or mutated in human ACCs. Finally, we also detected that growth hormone-releasing hormone (GHRH) antagonists, such as MIA602, kill H295R cells in a nonapoptotic manner. In summary, we found elevated expression of GPX4 and higher sensitivity to ferroptosis in ACCs. We hypothesize that instead of treatment with mitotane, human adrenocortical carcinomas may be much more sensitive to induction of ferroptosis.


Assuntos
Neoplasias do Córtex Suprarrenal/metabolismo , Carcinoma Adrenocortical/metabolismo , Ferroptose/efeitos dos fármacos , Células 3T3 , Animais , Apoptose/efeitos dos fármacos , Células HEK293 , Células HT29 , Humanos , Insulina/metabolismo , Ferro/metabolismo , Ácido Linoleico/metabolismo , Camundongos , Mitotano/toxicidade , Fosfolipídeo Hidroperóxido Glutationa Peroxidase/genética , Fosfolipídeo Hidroperóxido Glutationa Peroxidase/metabolismo , Selênio/metabolismo , Sermorelina/análogos & derivados , Sermorelina/farmacologia , Transferrina/metabolismo
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