Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 269
Filtrar
Mais filtros

Bases de dados
Tipo de documento
Intervalo de ano de publicação
1.
Palliat Med ; 38(3): 343-351, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38296960

RESUMO

BACKGROUND: Advance care planning can be challenging because discussing end-of-life care often has negative connotations. Gamification is a novel approach to encourage advance care planning conversations in Western culture. AIM: To co-design a game with multiple stakeholders to promote advance care planning in Chinese communities. DESIGN: A two-phase design guided by the Medical Research Council framework for developing complex interventions was adopted between May 2019 and August 2020. In phase I, a game prototype was developed based on literature review, expert consultation and end-user consultation. In Phase II, the game prototype was tested among end-users and refined according to their feedback and expertise of a multi-disciplinary team through an iterative process. SETTING/PARTICIPANTS: Experts in the field of aged care, palliative care, life education and game development and Chinese community-dwelling adults aged 60 years or older. RESULTS: A board game called 'The Five Tastes Found in a Grocery Store' was developed. The game design was shaped by Bandura's Self-efficacy theory and feedback from experts and end-users. The participants generally found the gaming experience enjoyable and appreciated the opportunity to discuss end-of-life care openly. CONCLUSIONS: This study is the first to develop an evidence-informed, theory-based, culturally sensitive game for promoting advance care planning in the Chinese community using a co-design approach.


Assuntos
Planejamento Antecipado de Cuidados , Assistência Terminal , Humanos , Idoso , Cuidados Paliativos , Pessoal de Saúde , China
2.
BMC Public Health ; 24(1): 670, 2024 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-38429719

RESUMO

BACKGROUND: Carers of patients with advanced organ failure (AOF) experience a tremendous caregiving burden. Social capital utilizes the internal strength of a community to support its members and may provide carers with comprehensive support. This study aimed to identify the different sources of social capital that can support carers of patients with AOF from the perspectives of stakeholders. METHOD: A descriptive qualitative study was conducted in community settings from April 2021 to May 2022. Stakeholders from medical social work departments, self-help groups, and non-governmental organizations were recruited, while some community members were invited through online media platforms. Individual semi-structured interviews were conducted using an interview guide. Interview transcripts were analyzed using a qualitative description approach. In total, 98 stakeholders, including 25 carers, 25 patients, 24 professionals, and 24 community members, were recruited using purposive and snowball sampling. RESULTS: Six categories about social capital for carers emerged, namely, carer attributes, the community, social care services, healthcare services, information, and policies. While the attributes of carers and their relationships with care recipients had a significant influence on caregiving, support from different groups in the community, such as neighbors and employers, was valued. Good communication of information about caregiving and social services was emphasized as being helpful by carers and other stakeholders. While carers presented a need for various healthcare and social care services, several features of these services, including their person-centeredness and proactive reach, were deemed useful. At the societal level, policies and research on comprehensive supportive services are warranted. The different sources of social capital constitute a multi-layer support system in the community. CONCLUSION: Carers can utilize personal attributes, interpersonal relationships, community resources, and societal contexts to enhance their caregiving. While this system can serve as a framework for building carer-friendly communities, interventions may be required to strengthen some aspects of social capital.


Assuntos
Cuidadores , Capital Social , Humanos , Grupos de Autoajuda , Apoio Social , Serviço Social
3.
J Am Soc Nephrol ; 34(11): 1889-1899, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37798822

RESUMO

SIGNIFICANCE STATEMENT: African Americans are at increased risk of CKD in part due to high-risk (HR) variants in the apolipoprotein L1 ( APOL1 ) gene, termed G1/G2. A different APOL1 variant, p.N264K , reduced the risk of CKD and ESKD among carriers of APOL1 HR variants to levels comparable with individuals with APOL1 low-risk variants in an analysis of 121,492 participants of African ancestry from the Million Veteran Program (MVP). Functional genetic studies in cell models showed that APOL1 p.N264K blocked APOL1 pore-forming function and ion channel conduction and reduced toxicity of APOL1 HR mutations. Pharmacologic inhibitors that mimic this mutation blocking APOL1 -mediated pore formation may be able to prevent and/or treat APOL1 -associated kidney disease. BACKGROUND: African Americans are at increased risk for nondiabetic CKD in part due to HR variants in the APOL1 gene. METHODS: We tested whether a different APOL1 variant, p.N264K , modified the association between APOL1 HR genotypes (two copies of G1/G2) and CKD in a cross-sectional analysis of 121,492 participants of African ancestry from the MVP. We replicated our findings in the Vanderbilt University Biobank ( n =14,386) and National Institutes of Health All of Us ( n =14,704). Primary outcome was CKD and secondary outcome was ESKD among nondiabetic patients. Primary analysis compared APOL1 HR genotypes with and without p.N264K . Secondary analyses included APOL1 low-risk genotypes and tested for interaction. In MVP, we performed sequential logistic regression models adjusting for demographics, comorbidities, medications, and ten principal components of ancestry. Functional genomic studies expressed APOL1 HR variants with and without APOL1 p.N264K in cell models. RESULTS: In the MVP cohort, 15,604 (12.8%) had two APOL1 HR variants, of which 582 (0.5%) also had APOL1 p.N264K . In MVP, 18,831 (15%) had CKD, 4177 (3%) had ESKD, and 34% had diabetes. MVP APOL1 HR, without p.N264K , was associated with increased odds of CKD (odds ratio [OR], 1.72; 95% confidence interval [CI], 1.60 to 1.85) and ESKD (OR, 3.94; 95% CI, 3.52 to 4.41). In MVP, APOL1 p.N264K mitigated the renal risk of APOL1 HR, in CKD (OR, 0.43; 95% CI, 0.28 to 0.65) and ESKD (OR, 0.19; CI 0.07 to 0.51). In the replication cohorts meta-analysis, APOL1 p.N264K mitigated the renal risk of APOL1 HR in CKD (OR, 0.40; 95% CI, 0.18 to 0.92) and ESKD (OR, 0.19; 95% CI, 0.05 to 0.79). In the mechanistic studies, APOL1 p.N264K blocked APOL1 pore-forming function and ion channel conduction and reduced toxicity of APOL1 HR variants. CONCLUSIONS: APOL1 p.N264K is associated with reduced risk of CKD and ESKD among carriers of APOL1 HR to levels comparable with individuals with APOL1 low-risk genotypes.


Assuntos
Apolipoproteína L1 , Saúde da População , Insuficiência Renal Crônica , Humanos , Apolipoproteína L1/genética , Apolipoproteínas/genética , Estudos Transversais , Predisposição Genética para Doença , Genótipo , Canais Iônicos/genética , Insuficiência Renal Crônica/genética , Negro ou Afro-Americano/genética
4.
J Adv Nurs ; 80(1): 176-185, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37431932

RESUMO

AIM: To understand participants' experiences with a culturally specific DEmentia Competence Education for Nursing home Taskforce programme within the contexts which was delivered. DESIGN: An exploratory descriptive qualitative approach. METHODS: Semi-structured individual interviews were conducted within one week with the participants upon their completion of the programme from July 2020 to January 2021. A purposive sample of participants with different demographic characteristics in five nursing homes was recruited to maximize the sample variation. Interviews were audiotaped and transcribed verbatim for qualitative content analysis. Participation was on voluntary and anonymous basis. RESULTS: Four major themes were identified, including perceived benefits of the programme (i.e., enhanced sensitivity to the needs of residents with dementia, increased communication with families of residents with dementia, facilitated guidance on care for residents with dementia), facilitators (i.e., comprehensive content, active learning, qualified trainer, intrinsic motivation and organizational support), barriers (i.e., busy working schedules, discrimination against care assistants' learning capability) and suggestions for improvement. CONCLUSION: The results suggested the acceptability of the programme. The participants positively appraised the programme in enhancing their dementia-care competence. The facilitators, barriers and suggestions identified provide insights on improving programme implementation. IMPACT: The qualitative findings from the process evaluation are pertinent to support the sustainability of dementia competence programme in nursing home setting. Future studies could address the modifiable barriers to enhance its effectiveness. REPORTING METHOD: This study was reported in adherence to the Consolidated criteria for reporting qualitatve studies (COREQ) checklist. PATIENT AND PUBLIC CONTRIBUTION: Nursing-home staff was involved in intervention development and delivery. IMPLICATIONS FOR PRACTICE/POLICY: The educational programme could be integrated into the routine practice in nursing homes to improve staff's dementia-care competence. More attention should be paid on the educational needs of the taskforce when implementing the educational programme in nursing homes. Organizational support is the precondition for the educational programme and cultivates a culture for practice change.


Assuntos
Demência , Recursos Humanos de Enfermagem , Humanos , Casas de Saúde , Competência Clínica , Comunicação , Pesquisa Qualitativa
5.
Nurs Ethics ; : 9697330241226604, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38315791

RESUMO

BACKGROUND: Moral sensitivity and academic integrity discernment hold paramount importance for healthcare professionals. Owing to distinct undergraduate educational backgrounds, nurses and physicians may exhibit divergent moral perspectives, academic integrity cognisance, and moral sensitivity within clinical environments. A limited number of studies have investigated the disparities and congruencies pertaining to moral sensitivity and academic ethical awareness among nursing and medical students. OBJECTIVE: The study compares moral sensitivity and academic ethical awareness of undergraduate nursing and medical students with and without clinical exposure. RESEARCH DESIGN: A self-administered cross-sectional survey conducted from January to February 2022 was used to collect data from a medical school in Hong Kong. PARTICIPANTS AND RESEARCH CONTEXT: A total of 545 respondents, including 137 nursing students and 408 medical students, completed the questionnaire. ETHICAL CONSIDERATION: Ethics approval of the study was obtained. Written consent was waived to maintain anonymity because completing the questionnaire was considered implied consent. FINDINGS: Both groups of undergraduates demonstrated a high level of bioethics knowledge. In terms of academic integrity, medical students were found to have a less concerned attitude towards punctuality, attendance, and skipping classes. Regarding moral sensitivity, senior medical students with clinical experience put less emphasis on decision-making involving patient participation, while senior nursing students were more hesitant in withholding treatment for incompetent patients who refused treatment. Both nursing and medical students showed decreased moral sensitivity in the 'conflicts' domain with increased clinical exposure. CONCLUSION: Study findings contribute to the discussion comparing the ethical attitudes of nursing and medical students. More effort should be made in nursing and medical education to promote practices in line with high academic integrity and to develop the ability to be morally sensitive in professional settings.

6.
Nicotine Tob Res ; 25(2): 291-297, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-35166327

RESUMO

INTRODUCTION: The ongoing COVID-19 pandemic had reduced access to traditional, in-person smoking cessation treatment. We examined the feasibility, acceptability, and potential effectiveness of mobile chat messaging in preventing smoking relapse in smokers who have recently quit smoking. METHODS: In this assessor-blinded, pilot randomized controlled trial in five cessation clinics, we recruited adult daily smokers who had been receiving cessation treatments and abstained for 3 to 30 days. The intervention group received real-time, personalized chat messaging on relapse prevention via WhatsApp for 3 months. The control group received generic text messaging on the harms of smoking and benefits of quitting for 3 months. The primary outcome was carbon monoxide-validated abstinence at 6 months post-treatment initiation. The trial was registered with ClinicalTrials.gov (NCT04409496). RESULTS: From June to July 2020, 108 of 130 (83%) eligible subjects were randomized to the intervention (N = 54) or control (N = 54) groups. The retention rate was 93% at 3 months (end of treatment) and 85% at 6 months. In the intervention group, 80% of participants responded to the chat messages at least once; 43% continuously engaged with the intervention over the 3-month intervention period. By intention-to-treat, validated abstinence at 6 months was higher in the intervention than control group (31% vs. 22%), with a relative risk of 1.72 (95% CI = 0.91% to 3.23%; p = .09) after adjusting for pre-quit nicotine dependence, duration of abstinence, and cessation treatment at baseline. CONCLUSIONS: This pilot trial showed the feasibility and acceptability of mobile chat messaging for relapse prevention with preliminary evidence on its effectiveness in increasing validated abstinence. IMPLICATIONS: Smoking relapse is the most likely outcome of smoking cessation attempts and an undertreated problem. This pilot trial showed the feasibility and acceptability of personalized chat messaging via WhatsApp for relapse prevention in recent abstainers amid the COVID-19 pandemic. The higher carbon monoxide-validated abstinence rate in participants who received chat messaging than controls showed preliminary evidence on the effectiveness of the intervention. Fully powered trials are warranted to test the intervention.


Assuntos
COVID-19 , Envio de Mensagens de Texto , Adulto , Humanos , Projetos Piloto , Monóxido de Carbono , Pandemias , COVID-19/epidemiologia , COVID-19/prevenção & controle , Fumar/terapia
7.
BMC Geriatr ; 23(1): 115, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36859250

RESUMO

BACKGROUND: Advance care planning (ACP) is highly relevant for people with early-stage dementia to communicate their care preferences for serious illness conditions with their family caregivers before they become mentally incapacitated. METHODS: A multi-centre, quasi-experimental study was conducted to test the feasibility and acceptability of a theory-guided, dyadic ACP intervention ('Have a Say' programme) among participants with early-stage dementia-family caregiver dyads. The feasibility of the trial design, intervention procedures, subject recruitment and retention, and study instruments were assessed. Study outcomes were measured at baseline (T0), immediately after the intervention (T1), and at 1 month (T2) and 3 months post-intervention (T3). Acceptability of the intervention was determined by the satisfaction score, completion rate and qualitative interviews as process evaluation with a purposive sample of participants and ACP facilitators. Generalised estimating equations were performed to examine differential changes between groups over time, with covariates adjusted. RESULTS: Subject recruitment from five elderly community centres yielded a recruitment rate of 60% and resulted in 36 client-caregiver dyads. The intervention was acceptable to the dyads, with a mean satisfaction score of 4.4 out of 5 and completion rate of 94.4%. The attrition rates at T1, T2, and T3 were 8.3%, 13.9%, and 19.4%, respectively. The intervention group reported a significantly greater improvement in the readiness for ACP at T1, self-efficacy for ACP at T3, and dyadic concordance on end-of-life care preferences at all time points than the control group, but not on depressive symptoms. Family caregivers in the intervention group reported a significantly higher caregiving burden at T2 than the control group. The qualitative findings revealed that triadic involvement of and trusting relationships among the dyads and ACP facilitators, and documentation of clients' views are the programme strengths, while the structured format and discussion about medical issues posed implementation challenges. CONCLUSIONS: This ACP intervention and trial design were feasible and acceptable to the dyads. Several refinements were identified, including adding a nurse-led group-based session for information giving, allowing flexibility in arrangement, and adding measure of ACP engagement of family caregivers. A rigorous trial to test the effects of the ACP intervention is warranted. TRIAL REGISTRATION: Retrospectively registered on 14/08/2020 at clinicaltrials.gov (Identifier: NCT04513106).


Assuntos
Planejamento Antecipado de Cuidados , Demência , Idoso , Humanos , Cuidadores , Estudos de Viabilidade
8.
BMC Geriatr ; 23(1): 877, 2023 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-38124026

RESUMO

BACKGROUND: Sedentary behaviour is considered to contribute to sarcopenia when combined with physical inactivity. Whether sedentary behaviour is independently associated with sarcopenia remains controversial. The aim of this study is to explore the association between sedentary behaviour and sarcopenia in older adults in community and long-term care facility settings. METHODS: Eight electronic databases including MEDLINE, PsycINFO, Wanfang were searched from inception until August 2023. The review included cross-sectional and longitudinal studies concerning the association between sedentary behaviour and sarcopenia among participants over 60 years old. Evidence was pooled by both random-effects meta-analysis and narrative synthesis. Subgroup analyses explored variation according to adjustment of physical activity, settings, and measurements of sedentary behaviour and sarcopenia. Quality assessment for individual studies was performed with the Joanna Briggs Institute (JBI) Critical Appraisal Checklist. RESULTS: Seventeen articles (16 cross-sectional studies and 1 longitudinal study) of 25,788 participants from community or long-term care facility settings were included. The overall quality of the included studies was rated high. Meta-analysis of 14 cross-sectional studies showed that sedentary behaviour was independently positively associated with sarcopenia: pooled odd ratio 1.36 (95% confidence interval, 1.18-1.58). The independent positive association remained in subgroup analyses by adjustment of physical activity, settings, and measurements of sedentary behaviour and sarcopenia. The narrative analysis corroborated the findings of the meta-analysis and provided additional evidence suggesting that interruptions in sedentary periods were linked to a decreased likelihood of developing sarcopenia. CONCLUSIONS: The findings support the hypothesis that sedentary behaviour is independently positively associated with sarcopenia in older adults, providing vital indications for the development of strategies to prevent sarcopenia. SYSTEMATIC REVIEW REGISTRATION: The systematic review protocol has been registered with the PROSPERO database (CRD42022311399).


Assuntos
Sarcopenia , Idoso , Humanos , Estudos Transversais , Estudos Longitudinais , Sarcopenia/diagnóstico , Sarcopenia/epidemiologia , Comportamento Sedentário
9.
J Clin Nurs ; 32(17-18): 6179-6195, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37149735

RESUMO

AIMS AND OBJECTIVES: To map and synthesise the literature on loneliness at end-of-life and identify key knowledge gaps in loneliness research. BACKGROUND: Declined health conditions, reduced social engagement, loss of social roles, and fear of death may lead to loneliness at end-of-life. However, systematic information about loneliness at end-of-life is scant. METHODS: This scoping review followed the methodology proposed by Arksey and O'Malley. Nine electronic databases were searched from January 2001 to July 2022. Studies about loneliness at end-of-life were included. Two review authors independently screened and selected relevant studies and performed the data charting. The PAGER framework was employed to collate, summarise and report the results. The PRISMA-ScR checklist was included. RESULTS: A total of 23 studies were included in this review (12 qualitative, 10 quantitative, and one mixed-methods design). There was not reliable data about the prevalence of loneliness among adults at end-of-life internationally. Three or 20-item UCLA loneliness scale was frequently used to measure loneliness. Factors predisposed adults at end-of-life to loneliness included passive and active withdrawal from social networks, inability to share emotions and to be understood, and inadequate support on spirituality. Four strategies were identified to alleviate loneliness, yet none have been substantiated in clinical trials. Interventions facilitating spirituality, social interactions and connectedness seem effective in alleviating loneliness. CONCLUSIONS: This is the first scoping review on loneliness at end-of-life, synthesising evidence from qualitative, quantitative, and mixed-methods studies. Loneliness among adults at end-of-life is under-investigated and there is a prominent need to address existential loneliness at end-of-life. RELEVANCE TO CLINICAL PRACTICE: All nurses should proactively assess loneliness or perceived social isolation for clients with life-limiting conditions, regardless of social networks. Collaborative efforts (e.g., medical-social collaborations) to promote self-worthiness, social engagement and connectedness with significant others and social networks are needed. PATIENT OR PUBLIC CONTRIBUTION: No patient or public involvement.


Assuntos
Solidão , Isolamento Social , Adulto , Humanos , Solidão/psicologia , Isolamento Social/psicologia , Emoções , Espiritualidade , Morte
10.
Clin Infect Dis ; 75(2): 288-296, 2022 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-34718428

RESUMO

BACKGROUND: Hepatitis E virus (HEV) variants belonging to Orthohepevirus species A (HEV-A) are the primary cause of human hepatitis E. However, we previously reported that Orthohepevirus species C genotype 1 (HEV-C1), a divergent HEV variant commonly found in rats, also causes hepatitis in humans. Here, we present a clinical-epidemiological investigation of human HEV-C1 infections detected in Hong Kong, with an emphasis on outcomes in immunocompromised individuals. METHODS: A surveillance system for detecting human HEV-C1 infections was established in Hong Kong. Epidemiological and clinical characteristics of HEV-C1 cases identified via this system between 1 August 2019 and 31 December 2020 were retrieved. Phylogenetic analysis of HEV-C1 strain sequences was performed. Infection outcomes of immunocompromised individuals with HEV-A and HEV-C1 infections were analyzed. RESULTS: HEV-C1 accounted for 8 of 53 (15.1%) reverse-transcription polymerase chain reaction (RT-PCR)-confirmed HEV infections in Hong Kong during the study period, raising the total number of HEV-C1 infections detected in the city to 16. Two distinct HEV-C1 strain groups caused human infections. Patients were elderly and/or immunocompromised; half tested negative for HEV immunoglobulin M. Cumulatively, HEV-C1 accounted for 9 of 21 (42.9%) cases of hepatitis E recorded in immunocompromised patients in Hong Kong. Immunocompromised HEV-C1 patients progressed to persistent hepatitis at similar rates (7/9 [77.8%]) as HEV-A patients (10/12 [75%]). HEV-C1 patients responded to oral ribavirin, although response to first course was sometimes poor or delayed. CONCLUSIONS: Dedicated RT-PCR-based surveillance detected human HEV-C1 cases that evade conventional hepatitis E diagnostic testing. Immunosuppressed HEV-C1-infected patients frequently progress to persistent HEV-C1 infection, for which ribavirin is a suitable treatment option.


Assuntos
Hepatite C , Vírus da Hepatite E , Hepatite E , Idoso , Animais , Vírus da Hepatite E/genética , Hong Kong/epidemiologia , Humanos , Filogenia , RNA Viral/genética , Ratos , Ribavirina
11.
Plant Biotechnol J ; 20(6): 1213-1225, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35258157

RESUMO

Postharvest deterioration is among the major challenges for the fruit industry. Regulation of the fruit softening rate is an effective strategy for extending shelf-life and reducing the economic losses due postharvest deterioration. The tomato myoinositol monophosphatase 3 gene SlIMP3, which showed highest expression level in fruit, was expressed and purified. SlIMP3 demonstrated high affinity with the L-Gal 1-P and D-Ins 3-P, and acted as a bifunctional enzyme in the biosynthesis of AsA and myoinositol. Overexpression of SlIMP3 not only improved AsA and myoinositol content, but also increased cell wall thickness, improved fruit firmness, delayed fruit softening, decreased water loss, and extended shelf-life. Overexpression of SlIMP3 also increased uronic acid, rhamnose, xylose, mannose, and galactose content in cell wall of fruit. Treating fruit with myoinositol obtained similar fruit phenotypes of SlIMP3-overexpressed fruit, with increased cell wall thickness and delayed fruit softening. Meanwhile, overexpression of SlIMP3 conferred tomato fruit tolerance to Botrytis cinerea. The function of SlIMP3 in cell wall biogenesis and fruit softening were also verified using another tomato species, Ailsa Craig (AC). Overexpression of SlDHAR in fruit increased AsA content, but did not affect the cell wall thickness or fruit firmness and softening. The results support a critical role for SlIMP3 in AsA biosynthesis and cell wall biogenesis, and provide a new method of delaying tomato fruit softening, and insight into the link between AsA and cell wall metabolism.


Assuntos
Solanum lycopersicum , Ácido Ascórbico , Parede Celular/metabolismo , Frutas/metabolismo , Regulação da Expressão Gênica de Plantas/genética , Inositol/metabolismo , Solanum lycopersicum/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo
12.
Hepatology ; 73(1): 10-22, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-31960460

RESUMO

BACKGROUND AND AIMS: Hepatitis E virus (HEV) variants causing human infection predominantly belong to HEV species A (HEV-A). HEV species C genotype 1 (HEV-C1) circulates in rats and is highly divergent from HEV-A. It was previously considered unable to infect humans, but the first case of human HEV-C1 infection was recently discovered in Hong Kong. The aim of this study is to further describe the features of this zoonosis in Hong Kong. APPROACH AND RESULTS: We conducted a territory-wide prospective screening study for HEV-C1 infection over a 31-month period. Blood samples from 2,860 patients with abnormal liver function (n = 2,201) or immunosuppressive conditions (n = 659) were screened for HEV-C1 RNA. In addition, 186 captured commensal rats were screened for HEV-C1 RNA. Sequences of human-derived and rat-derived HEV-C1 isolates were compared. Epidemiological and clinical features of HEV-C1 infection were analyzed. HEV-C1 RNA was detected in 6/2,201 (0.27%) patients with hepatitis and 1/659 (0.15%) immunocompromised persons. Including the previously reported case, eight HEV-C1 infections were identified, including five in patients who were immunosuppressed. Three patients had acute hepatitis, four had persistent hepatitis, and one had subclinical infection without hepatitis. One patient died of meningoencephalitis, and HEV-C1 was detected in cerebrospinal fluid. HEV-C1 hepatitis was generally milder than HEV-A hepatitis. HEV-C1 RNA was detected in 7/186 (3.76%) rats. One HEV-C1 isolate obtained from a rat captured near the residences of patients was closely related to the major outbreak strain. CONCLUSIONS: HEV-C1 is a cause of hepatitis E in humans in Hong Kong. Immunosuppressed individuals are susceptible to persistent HEV-C1 infection and extrahepatic manifestations. Subclinical HEV-C1 infection threatens blood safety. Tests for HEV-C1 are required in clinical laboratories.


Assuntos
Reservatórios de Doenças/veterinária , Vírus da Hepatite E/genética , Hepatite E/epidemiologia , Hepatite E/transmissão , Idoso , Idoso de 80 Anos ou mais , Animais , Reservatórios de Doenças/virologia , Feminino , Vírus da Hepatite E/classificação , Hepatite Viral Animal/transmissão , Hong Kong/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Filogenia , Estudos Prospectivos , RNA Viral/genética , Ratos , Zoonoses/transmissão , Zoonoses/virologia
13.
AIDS Res Ther ; 19(1): 69, 2022 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-36587188

RESUMO

INTRODUCTION: Incident syphilis leads to changes in plasma HIV-1 RNA and CD4 + T-cell level in people with HIV (PWH) with viraemia. Its effect in PWH on suppressive antiretroviral therapy (ART) is less clear. METHODS: PWH on suppressive ART (plasma HIV-1 RNA < 50copies/mL) followed at the Queen Elizabeth Hospital, Hong Kong, China were regularly screened for syphilis. Their plasma HIV-1 RNA, CD4 + and CD8 + T-cell, and total lymphocyte levels before syphilis, during syphilis, and after successful treatment were compared. RESULTS: Between 2005 and 2020, 288 syphilis episodes from 180 individuals were identified; 287 episodes were related to male, with a median age of 41 at diagnosis; 221 (77%) were syphilis re-infection. The rates of plasma HIV-1 suppression were statistically unchanged across the time-points (97% pre-syphilis, 98% during syphilis, and 99% post-treatment). Total lymphocyte, CD4+ and CD8+ T-cell levels decreased during incident syphilis (p<0.01), and rebounded post-treatment (p<0.01). VDRL titre was associated with declines in CD4+ T-cell (p=0.045), CD8+ T-cell (p=0.004), and total lymphocyte levels (p=0.021). Pre-syphilis CD4/CD8 ratio was associated with increases in CD8+ T-cell (p=0.001) and total lymphocyte levels (p=0.046) during syphilis. Syphilis re-infection was associated with an increase in total lymphocyte level (p=0.037). In the multivariable analysis, only pre-syphilis CD4/CD8 ratio was independently associated with increases in CD8+ T-cell (p=0.014) and total lymphocyte levels (p=0.039) during syphilis. CONCLUSIONS: Among virally-suppressed PWH, total lymphocyte, CD4+, and CD8+ T-cell levels declined during incident syphilis but rebounded post-treatment. The status of plasma HIV suppression was unaffected by syphilis.


Assuntos
Infecções por HIV , Soropositividade para HIV , HIV-1 , Sífilis , Humanos , Masculino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Sífilis/epidemiologia , Reinfecção/complicações , Linfócitos T CD4-Positivos , Soropositividade para HIV/complicações , RNA , Terapia Antirretroviral de Alta Atividade , Carga Viral , Contagem de Linfócito CD4
14.
Ethn Health ; 27(2): 284-296, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-31701760

RESUMO

Objective: The uptake of cervical cancer screening among South Asian ethnic minorities is low, rendering them at higher risk of developing cervical cancer. Interventions should, therefore, be developed to enhance their knowledge of this disease and its prevention. We developed and implemented a Health-Belief-Model-based and culturally sensitive multimedia intervention for South Asian women in Hong Kong, and evaluated its feasibility, acceptability and effectiveness using the Reach-Effectiveness-Adoption-Implementation-Maintenance framework.Design: At post-intervention, a short survey was conducted to assess the participants' perceptions of the acceptability and effectiveness of the intervention. Focus group and/or telephone interviews with persons-in-charge of community organizations were conducted to collect feedback on the intervention's effectiveness and long-term sustainability.Results: The intervention was implemented successfully in partnership with 54 community organizations, of which 51 expressed a willingness to continue doing so at their centers. 1061 South Asian women received the intervention through attendance at the 51 health talks held. Over 90% of them agreed that the intervention was acceptable and effective.Conclusions: The intervention appeared to be feasible, and is potentially effective in enhancing participants' knowledge of cervical cancer and self-efficacy in undergoing screening.


Assuntos
Detecção Precoce de Câncer , Neoplasias do Colo do Útero , Povo Asiático , Feminino , Hong Kong , Humanos , Multimídia , Neoplasias do Colo do Útero/diagnóstico
15.
J Clin Nurs ; 31(13-14): 1776-1785, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33058348

RESUMO

AIMS: To translate 25-item Dementia Knowledge Assessment Scale into Chinese and evaluate its psychometric properties amongst Chinese healthcare providers. BACKGROUND: The prevalence of dementia is increasing in China, but development of relevant training for healthcare providers is still in its infancy stage. A comprehensive, valid and reliable Chinese knowledge-of-dementia measure is needed to identify training needs and evaluate the effect of educational interventions. DESIGN: A cross-sectional survey. METHODS: The Dementia Knowledge Assessment Scale was translated into Chinese following the modified Brislin's translation model. Content and face validity were established by an expert panel in dementia care and healthcare providers. A convenience sample of 290 healthcare providers in care homes and hospitals was recruited. Construct validity was evaluated through confirmatory factor analysis, concurrent validity and known groups' comparisons method. Reliability was evaluated through internal consistency reliability and 2-week test-retest reliability. This study used the STROBE checklist for reporting. RESULTS: The content validity index was 0.98. The confirmatory factor analysis model revealed that the four-factor model was partly supported in the present study. The moderate correlation between Chinese version of Dementia Knowledge Assessment Scale and Alzheimer's Disease Knowledge Scale indicated acceptable concurrent validity. The mean score of the scale and subscale scores showed significant differences between health professionals and care assistants, except for the subscale of "Care Considerations." The reliability was demonstrated with Cronbach's alpha of .77 and intra-class correlation coefficients of each subscale between .74 and .92 among 56 respondents. CONCLUSIONS: The Chinese version of Dementia Knowledge Assessment Scale demonstrated acceptable concurrent validity but marginal factorial validity and satisfactory reliability amongst Chinese healthcare providers. Therefore, applying the four-factor structure of Chinese version scale should be considered. RELEVANCE TO CLINICAL PRACTICE: Chinese version of Dementia Knowledge Assessment Scale can be used to understand the training needs of healthcare providers in dementia.


Assuntos
Doença de Alzheimer , Pessoal de Saúde , China , Estudos Transversais , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
16.
BMC Nurs ; 21(1): 35, 2022 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-35093043

RESUMO

BACKGROUND: Healthcare providers' dementia-care competence is crucial for quality dementia care. A reliable and valid instrument is needed to assess the gaps in their dementia-care competence, and thereby identifying their educational needs. Therefore, this study aims to translate the 17-item Sense of Competence in Dementia Care Staff (SCIDS) scale into Chinese (SCIDS-C) and to validate the SCIDS-C among Chinese healthcare providers. METHODS: The translation procedure followed the modified Brislin's translation model. A cross-sectional survey was conducted using the translated version. The validity, including content validity, confirmatory factor analysis, concurrent validity and known-groups validity, was tested. Reliability in terms of internal consistency and test-retest reliability with a 2-week interval was evaluated. RESULTS: A total of 290 healthcare providers in 12 nursing homes and a hospital completed the survey. The scale-level content validity index was .99. The confirmatory factor analysis model marginally supported the original 4-factor structure. Positive but weak correlations were noted between the total score of the SCIDS-C and that of the Dementia Knowledge Assessment Scale (r = .17, p = .005) and Approaches to Dementia Questionnaire (r = .22, p < .001), suggesting acceptable concurrent validity. Differences between health professionals and care assistants were significant in two subscales scores. The internal consistency of the scale was high, with Cronbach's α of .87. Test-retest reliability was demonstrated with intra-class correlation coefficient of 0.88. CONCLUSIONS: The SCIDS-C demonstrated acceptable reliability and validity although the known-groups validity between health professionals and care assistants was not fully established. It can be used to measure the level of sense of competence and as an outcome measure in educational intervention aiming at improving dementia care among Chinese healthcare providers.

17.
Nurs Ethics ; 29(7-8): 1750-1760, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35798543

RESUMO

BACKGROUND: Care homes have been disproportionately affected during the COVID-19 pandemic. Practical challenges of enacting infection control measures in care home settings have been widely reported, but little is known about the ethical concerns of care home staff during the implementation of such measures. . OBJECTIVES: To understand the ethical challenges perceived by care home staff during the early months of the COVID-19 pandemic. RESEARCH DESIGN: An exploratory qualitative study. PARTICIPANTS AND RESEARCH CONTEXT: A purposive sample of 15 care home staff in different roles and ranks in Hong Kong was recruited to take part in semi-structured interviews between June and August 2020. ETHICAL CONSIDERATIONS: Ethical approval for this study was obtained. Participation was voluntary and anonymous. Participants had the right to withdraw from the study at any time without reprisal. FINDINGS: Three themes were identified: unclear legitimacy regarding infection control measures, limited autonomy in choices over infection control measures and inevitable harms to residents' well-being. While the participants expected that they would have legitimated power to implement infection control measures, they were resistant when their right to self-determination of testing and vaccination was infringed. They also felt trapped between ethical duties to protect care home residents from infection risk and the anticipated detrimental effects of infection control measures. CONCLUSIONS: The findings of this study reveal tensions among the ethical obligations of care home staff in response to a public health emergency. They highlight the importance of strengthening ethical sensitivity and ethical leadership in identifying and resolving the challenges of pandemic responses.


Assuntos
COVID-19 , Casas de Saúde , Humanos , Pandemias , Pesquisa Qualitativa , Autonomia Pessoal
18.
Plant Physiol ; 183(3): 854-868, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32414899

RESUMO

Tomato (Solanum lycopersicum) fruit ripening is accompanied by the degradation of chlorophylls and the accumulation of carotenoids and flavonoids. Tomato SlMYB72 belongs to the R2R3 MYB subfamily, is located in the nucleus, and possesses transcriptional activator activity. Down-regulation of the SlMYB72 gene produced uneven-colored fruits; that is, dark green spots appeared on immature and mature green fruits, whereas yellow spots appeared on red fruits. Down-regulation of SlMYB72 increased chlorophyll accumulation, chloroplast biogenesis and development, and photosynthesis rate in fruits. This down-regulation decreased lycopene content, promoted ß-carotene production and chromoplast development, and increased flavonoid accumulation in fruits. RNA sequencing analysis revealed that down-regulation of SlMYB72 altered the expression levels of genes involved in the biosynthesis of chlorophylls, carotenoids, and flavonoids. SlMYB72 protein interacted with the auxin response factor SlARF4. SlMYB72 directly targeted protochlorophyllide reductase, Mg-chelatase H subunit, and knotted1-like homeobox2 genes and regulated chlorophyll biosynthesis and chloroplast development. SlMYB72 directly bound to phytoene synthase, ζ-carotene isomerase, and lycopene ß-cyclase genes and regulated carotenoid biosynthesis. SlMYB72 directly targeted 4-coumarate-coenzyme A ligase and chalcone synthase genes and regulated the biosynthesis of flavonoids and phenolic acid. The uneven color phenotype in RNA interference-SlMYB72 fruits was due to uneven silencing of SlMYB72 and uneven expression of chlorophyll, carotenoid, and flavonoid biosynthesis genes. In summary, this study identified important roles for SlMYB72 in the regulation of chlorophyll, carotenoid, and flavonoid metabolism and provided a potential target to improve fruit nutrition in horticultural crops.


Assuntos
Carotenoides/metabolismo , Clorofila/genética , Clorofila/metabolismo , Flavonoides/genética , Frutas/genética , Frutas/metabolismo , Solanum lycopersicum/genética , Flavonoides/metabolismo , Regulação da Expressão Gênica de Plantas , Genes de Plantas , Solanum lycopersicum/metabolismo
19.
Cancer Treat Res ; 182: 87-95, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34542877

RESUMO

Cancer is a leading cause of morbidity and mortality, with up to 9.6 million cancer-related deaths worldwide in 2018 [1].


Assuntos
Dor do Câncer , Neoplasias , Analgésicos Opioides/uso terapêutico , Dor do Câncer/tratamento farmacológico , Dor do Câncer/etiologia , Humanos , Neoplasias/complicações
20.
Curr Opin Ophthalmol ; 32(6): 527-535, 2021 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-34605446

RESUMO

PURPOSE OF REVIEW: The aim of this study was to summarize common eye changes that may occur during pregnancy, and how pregnancy may affect preexisting eye conditions such as glaucoma and diabetic retinopathy. Challenges and complexities surrounding the treatment of these eye conditions during pregnancy are also highlighted. RECENT FINDINGS: Refractive changes are common and may persist in the postpartum in patients with keratoconus. Although new medical and surgical glaucoma treatments are available, their safety in pregnancy is unknown. Limited use of topical and systemic glaucoma therapies is recommended, with a preference for selective laser trabeculoplasty as first line treatment in appropriate cases. The impact of pregnancy on diabetic retinopathy remains unclear. Although anti-vascular endothelial growth factor agents are first-line treatment for sight-threatening diabetic retinopathy, their effect on the developing foetus remains unknown and are therefore best avoided in the first and second trimesters. Noninfectious uveitis tends to become less active during pregnancy, allowing the potential tapering of systemic therapy and the use of local topical or injected corticosteroid treatment for active disease as required. SUMMARY: Significant changes can occur to the eye during pregnancy, wherein the optimal treatment for many ocular conditions remains uncertain, highlighting the need for further research to develop clear recommendations that best balance the need to preserve the mother's sight, and the health of the developing foetus. The need for preconception planning, and collaborative multidisciplinary care between the obstetrician, physician, ophthalmologist and paediatrician is paramount.


Assuntos
Retinopatia Diabética , Glaucoma , Terapia a Laser , Trabeculectomia , Olho , Feminino , Glaucoma/cirurgia , Humanos , Gravidez
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA