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INTRODUCTION: The rapid growth of the ageing population underscores the critical need for dementia care training among care providers. Innovative virtual reality (VR) technology has created opportunities to improve dementia care training. This scoping review will specifically focus on the barriers, facilitators and impacts of implementing fully immersive VR training for dementia care among staff in long-term care (LTC) settings. METHODS AND ANALYSIS: We will follow the Joanna Briggs Institute's scoping review methodology to ensure scientific rigour. We will collect literature of all languages with abstracts in English from CINAHL, Medline, Scopus, Embase, Web of Science and ProQuest database until 31 December 2023. Grey literature from Google Scholar and AgeWell websites will be included. Inclusion criteria encompass papers involving paid staff (Population), fully immersive VR training on dementia care (Concept) and LTC settings (Context). Literature referring only to non-paid caregivers, non-fully immersive VR or other chronic diseases will be excluded. Literature screening, data extraction and analysis will be conducted by two reviewers separately. We will present a narrative summary with a charting table on the main findings. ETHICS AND DISSEMINATION: This work does not require ethics approval, given the public data availability for this scoping review. Through a comprehensive overview of the current evidence regarding impacts, barriers and facilitators on this topic, potential insights and practical recommendations will be generated to support the implementation of VR training to enhance staff competence in LTC settings. The findings will be presented in a journal article and shared with practitioners on the frontline.
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Demência , Assistência de Longa Duração , Realidade Virtual , Humanos , Demência/terapia , Pessoal de Saúde/educaçãoRESUMO
OBJECTIVES: To investigate the association and the potential value of prelabour fetal heart rate short-term variability (STV) determined by computerised cardiotocography (cCTG) and maternal and fetal Doppler in predicting labour outcomes. DESIGN: Prospective cohort study. SETTING: The Prince of Wales Hospital, a tertiary maternity unit, in Hong Kong SAR. POPULATION: Women with a term singleton pregnancy in latent phase of labour or before labour induction were recruited during May 2019-November 2021. METHODS: Prelabour ultrasonographic assessment of fetal growth, Doppler velocimetry and prelabour cCTG monitoring including Dawes-Redman CTG analysis were registered shortly before induction of labour or during the latent phase of spontaneous labour. MAIN OUTCOME MEASURES: Umbilical cord arterial pH, emergency delivery due to pathological CTG during labour and neonatal intensive care unit (NICU)/special care baby unit (SCBU) admission. RESULTS: Of the 470 pregnant women invited to participate in the study, 440 women provided informed consent and a total of 400 participants were included for further analysis. Thirty-four (8.5%) participants underwent emergency delivery for pathological CTG during labour. A total of 6 (1.50%) and 148 (37.00%) newborns required NICU and SCBU admission, respectively. Middle cerebral artery pulsatility index (MCA-PI) and MCA-PI z-score were significantly lower in pregnancies that required emergency delivery for pathological CTG during labour compared with those that did not (1.23 [1.07-1.40] versus 1.40 [1.22-1.64], p = 0.002; and 0.55 ± 1.07 vs. 0.12 ± 1.06), p = 0.049]. This study demonstrated a weakly positive correlation between umbilical cord arterial pH and prelabour log10 STV (r = 0.107, p = 0.035) and the regression analyses revealed that the contributing factors for umbilical cord arterial pH were smoking (p = 0.006) and prelabour log10 STV (p = 0.025). CONCLUSIONS: In pregnant women admitted in latent phase of labour or for induction of labour at term, prelabour cCTG STV had a weakly positive association with umbilical cord arterial pH but was not predictive of emergency delivery due to pathological CTG during labour.
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Cardiotocografia , Trabalho de Parto , Gravidez , Feminino , Recém-Nascido , Humanos , Estudos Prospectivos , Feto , Cuidado Pré-NatalRESUMO
BACKGROUND: International professional organizations recommend aspirin prophylaxis to women screened high risk for preterm preeclampsia (PE) in the first trimester. The UK Fetal Medicine Foundation (FMF) screening test for preterm PE using mean arterial pressure (MAP), uterine artery pulsatility index (UTPI) and placental growth factor (PlGF) was demonstrated to have lower detection rate (DR) in Asian population studies. Additional biomarkers are therefore needed in Asian women to improve screening DRs as a significant proportion of women with preterm and term PE are currently not identified. OBJECTIVES: To evaluate maternal serum inhibin-A at 11-13 weeks as an alternative to PlGF or as an additional biomarker within the FMF screening test for preterm PE. STUDY DESIGN: This is a nested case-control study using pregnancies initially screened at 11-13 weeks for preterm PE using the FMF triple test in a non-intervention study conducted between December 2016 and June 2018. Inhibin-A levels were retrospectively measured in 1,792 singleton pregnancies, 112 (1.7%) with PE matched for time of initial screening with 1,680 unaffected pregnancies. Inhibin-A levels were transformed to multiple of the expected median (MoM). The distribution of log10 inhibin-A MoM in PE and unaffected pregnancies and the association between log10 inhibin-A MoM and gestational age (GA) at delivery in PE were assessed. The screening performance determined by area under receiver operating characteristic curves (AUC) and detection rates (DRs) at a 10% fixed false positive rate (FPR), for preterm and term PE was determined. All risks for preterm and term PE were based on the FMF competing risk model and Bayes theorem. Differences in AUC (ΔAUC) between different biomarker combinations were compared using the Delong test. McNemar's test was used to assess the off-diagonal change in screening performance at a fixed 10% FPR after adding inhibin-A or replacing PlGF in the preterm PE adjusted risk estimation model. RESULTS: Inhibin-A levels in unaffected pregnancies were significantly dependent on GA, maternal age and weight and were lower in parous women with no previous history of PE. Mean log10 inhibin-A MoM in any-onset PE (p<0.001), preterm (p<0.001) and term PE (p = 0.015) pregnancies were all significantly higher than that of unaffected pregnancies. Log10 inhibin-A MoM was inversely but not significantly correlated (p = 0.165) with GA at delivery in PE pregnancies. Replacing PlGF with inhibin-A in the FMF triple test reduced AUC and DR from 0.859 and 64.86% to 0.837 and 54.05%, the ΔAUC was not statistically significant. AUC and DR when adding inhibin-A to the FMF triple test were 0.814, 54.05% and the -0.045 reduction in AUC was statistically significant (p = 0.001). At a fixed 10% FPR, replacing PlGF with inhibin-A identified 1 (2.7%) additional pregnancy but missed 5 (13.5%) pregnancies which subsequently developed preterm PE identified by the FMF triple test. Adding inhibin-A missed 4 (10.8%) pregnancies and did not identify any additional pregnancies with preterm PE. CONCLUSION: Replacing PlGF by inhibin-A or adding inhibin-A as an additional biomarker in and to the FMF triple screening test for preterm PE does not improve screening performance and will fail to identify pregnancies that are currently identified by the FMF triple test.
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Pré-Eclâmpsia , Gravidez , Recém-Nascido , Feminino , Humanos , Primeiro Trimestre da Gravidez , Pré-Eclâmpsia/epidemiologia , Teorema de Bayes , Estudos de Casos e Controles , Estudos Retrospectivos , Fator de Crescimento Placentário , Medição de Risco , Biomarcadores , Artéria Uterina/diagnóstico por imagem , Fluxo PulsátilRESUMO
¼: The rapid increase in the use of electronic medical records (EMRs) has led to some unintended consequences that negatively affect physicians and their patients. ¼: The use of medical scribes may serve as a possible solution to some of the EMR-related concerns. ¼: Research has demonstrated an overall positive impact of having scribes on both physician and patient well-being, safety, and satisfaction. ¼: Adaptation of advances in technology, including remote and asynchronous scribing, use of face-mounted devices, voice recognition software, and applications of artificial intelligence may address some of the barriers to more traditional in-person scribes.
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Procedimentos Ortopédicos , Ortopedia , Humanos , Inteligência Artificial , Registros Eletrônicos de SaúdeRESUMO
PURPOSE: We investigated the correlation, reproducibility, and effect of white matter fiber orientation for three myelin-sensitive MRI techniques: magnetization transfer ratio (MTR), inhomogeneous magnetization transfer ratio (ihMTR), and gradient and spin echo-derived myelin water fraction (MWF). METHODS: We measured the three metrics in 17 white and three deep grey matter regions in 17 healthy adults at 3 T. RESULTS: We found a strong correlation between ihMTR and MTR (r = 0.70, p < 0.001) and ihMTR and MWF (r = 0.79, p < 0.001), and a weaker correlation between MTR and MWF (r = 0.54, p < 0.001). The dynamic range in white matter was greatest for MWF (2.0%-27.5%), followed by MTR (14.4%-23.2%) and then ihMTR (1.2%-5.4%). The average scan-rescan coefficient of variation for white matter regions was 0.6% MTR, 0.3% ihMTR, and 0.7% MWF in metric units; however, when adjusted by the dynamic range, these became 6.3%, 6.1% and 2.8%, respectively. All three metrics varied with fiber direction: MWF and ihMTR were lower in white matter fibers perpendicular to B0 by 6% and 1%, respectively, compared with those parallel, whereas MTR was lower by 0.5% at about 40°, with the highest values at 90°. However, separating the apparent orientation dependence by white matter region revealed large dissimilarities in the trends, suggesting that real differences in myelination between regions are confounding the apparent orientation dependence measured using this method. CONCLUSION: The strong correlation between ihMTR and MWF suggests that these techniques are measuring the same myelination; however, the larger dynamic range of MWF may provide more power to detect small differences in myelin.
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Bainha de Mielina , Substância Branca , Humanos , Adulto , Reprodutibilidade dos Testes , Encéfalo/diagnóstico por imagem , Imageamento por Ressonância Magnética/métodos , Substância Branca/diagnóstico por imagem , Água , BiomarcadoresRESUMO
Healthcare generates large amounts of waste, harming both environmental and human health. Waste audits are the standard method for measuring and characterizing waste. This is a systematic review of healthcare waste audits, describing their methods and informing more standardized auditing and reporting. Using Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we searched MEDLINE, Embase, Inspec, Scopus and Web of Science Core Collection databases for published studies involving direct measurement of waste in medical facilities. We screened 2398 studies, identifying 156 studies for inclusion from 37 countries. Most were conducted to improve local waste sorting policies or practices, with fewer to inform policy development, increase waste diversion or reduce costs. Measurement was quantified mostly by weighing waste, with many also counting items or using interviews or surveys to compile data. Studies spanned single procedures, departments and hospitals, and multiple hospitals or health systems. Waste categories varied, with most including municipal solid waste or biohazardous waste, and others including sharps, recycling and other wastes. There were significant differences in methods and results between high- and low-income countries. The number of healthcare waste audits published has been increasing, with variable quality and general methodologic inconsistency. A greater emphasis on consistent performance and reporting standards would improve the quality, comparability and usefulness of healthcare waste audits.
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Atenção à Saúde , Hospitais , HumanosRESUMO
BACKGROUND: Many cancer patients use complementary, alternative, and integrative medicine (CAIM) to improve their psychological and functional health. However, there is little known about the extent of CAIM information and services provided on oncology hospital websites. METHODS: This study reviewed public-facing websites to determine the degree of CAIM information provided and services offered by the world's leading cancer hospitals in 2021; this ranking was informed by a large survey of medical professionals led by Newsweek and Statista. Nine authors extracted data from hospital websites individually and in triplicate, prior to meeting to revise data extractions. Data analysis was then performed by two authors to determine how many hospitals provided CAIM descriptions and offered CAIM services, and the extent of CAIM information provided. RESULTS: A total of 131 hospitals were included in this study. Of the eligible hospitals, 50.38% (n = 66) provided a theoretical description of CAIM; 48.09% (n = 63) provided a description of one or more CAIM therapies; 63.36% (n = 83) offered one or more CAIM therapies to cancer patients. The most common therapies described were the same as the most common therapies offered. These therapies are massage, special foods and diets, acupuncture, meditation, yoga, and creative outlets. While CAIM therapies were commonly offered, information surrounding the benefits and side effects associated with these therapies varied. CONCLUSIONS: Due to the lack of CAIM standardization worldwide, there is a need for increased CAIM information provision on hospital websites to better inform and empower patients to make well-informed decisions about their health.
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Terapias Complementares , Medicina Integrativa , Neoplasias , Hospitais , Humanos , Oncologia , Neoplasias/terapiaRESUMO
OBJECTIVES: To investigate (i) the association between pre-labor maternal-fetal Dopplers and fetal heart rate short-term variability (FHR STV) with arterial cord blood pH and (ii) the potential value of pre-labor maternal-fetal Dopplers, FHR STV and Dawes-Redman criteria in predicting composite neonatal morbidity at term in a cohort of unselected women. METHOD: A prospective study in 218 women with term singleton pregnancy in latent phase of labor or due to undergo induction of labor. Data on maternal characteristics, maternal-fetal Dopplers indices and computerized cardiotocography (CTG) findings of FHR STV and Dawes-Redman criteria were collected. Pearson correlation analysis was used to determine the relationship between maternal-fetal Dopplers and FHR STV and arterial cord blood pH. Logistic regression analysis was used to determine which factors amongst maternal characteristics, labor onset, indication of labor induction, estimated fetal weight (EFW), maternal-fetal Dopplers, FHR STV and Dawes-Redman criteria were significant predictors of composite neonatal morbidity and arterial cord blood pH less than 7.2. RESULT: Of the 218 cases, 12 (5.5%) women were delivered by emergency operative delivery for pathological CTG, and 42 babies (19.3%) had composite neonatal morbidities. Arterial cord blood pH was not associated with maternal-fetal Doppler indices and FHR STV, but rather it was associated with maternal age and body mass index. The composite neonatal morbidity and arterial cord blood pH less than 7.2 were not significantly associated with maternal characteristics, labor onset, indication of labor induction, pre-labor assessment of EFW, maternal-fetal Doppler indices, FHR STV and Dawes-Redman criteria by computerized CTG. CONCLUSION: In unselected women in latent phase of labor or undergoing induction of labor at term, admission maternal-fetal Doppler indices, FHR STV and Dawes-Redman criteria are not predictive of composite neonatal morbidity.
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Cardiotocografia , Frequência Cardíaca Fetal , Trabalho de Parto , Feminino , Humanos , Recém-Nascido , Gravidez , Estudos Prospectivos , Ultrassonografia Pré-NatalRESUMO
PURPOSE: We aimed to retrospectively correlate 18F-fluorodeoxyglucose (18F-FDG) metabolic activity with lumbar spine magnetic resonance imaging (MRI) findings and epidural steroid injection sites in patients with symptomatic degenerative disease of the lumbar spine. METHODS: A database search was conducted for patients receiving epidural injections <12 months after a positron emission tomography/computed tomography (PET/CT). Maximum standard uptake values (SUVmax) were measured at the facet joints, neural foramina, and spinal canal. Severity of facet arthrosis, disc degeneration, neuroforaminal, and canal stenosis was determined on MRI using previously described grading scales. Spearman rank coefficient assessed association between PET/CT FDG uptake and severity of MRI findings. The SUVmax was also compared with injection sites. RESULTS: Twenty-five patients were included, comprising MRI (n=19) and injection (n=22 patients; 18 interlaminar, 8 transforaminal) groups. Injections were performed an average of 2.6 months after PET/CT. The greatest SUVmax occurred at the L5-S1 spinal canal (mean SUVmax = 2.25). A statistically significant, positive correlation between uptake and grade of spinal canal stenosis was seen only at L4-L5 (r=0.60, p = 0.007). No other significant association was found with spinal canal or neuroforaminal stenosis, or grade of facet joint or disc degeneration. All patients reported symptomatic improvement after injections with mean pain score improvement of 4.4 on a 10-point scale (SD, 2.9). There was moderate agreement between sites of epidural injection and highest SUVmax (κ= 0.591, p < 0.001). CONCLUSION: 18F-FDG metabolic activity on PET/CT corresponds with MRI findings about the lumbar spinal column, but there is no significant correlation between severity of MRI findings and radiotracer uptake. Given the moderate agreement between metabolic activity and levels of symptomatic spinal stenosis, further studies are warranted to fully evaluate the diagnostic potential of FDG PET/CT as a surrogate for guiding epidural injections.
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Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Humanos , Vértebras Lombares/diagnóstico por imagem , Imageamento por Ressonância Magnética , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Estudos Retrospectivos , EsteroidesRESUMO
Objective.Brain-computer interfaces (BCIs) translate neural activity into control signals for assistive devices in order to help people with motor disabilities communicate effectively. In this work, we introduce a new BCI architecture that improves control of a BCI computer cursor to type on a virtual keyboard.Approach.Our BCI architecture incorporates an external artificial intelligence (AI) that beneficially augments the movement trajectories of the BCI. This AI-BCI leverages past user actions, at both long (100 s of seconds ago) and short (100 s of milliseconds ago) timescales, to modify the BCI's trajectories.Main results.We tested our AI-BCI in a closed-loop BCI simulator with nine human subjects performing a typing task. We demonstrate that our AI-BCI achieves: (1) categorically higher information communication rates, (2) quicker ballistic movements between targets, (3) improved precision control to 'dial in' on targets, and (4) more efficient movement trajectories. We further show that our AI-BCI increases performance across a wide control quality spectrum from poor to proficient control.Significance.This AI-BCI architecture, by increasing BCI performance across all key metrics evaluated, may increase the clinical viability of BCI systems.
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Interfaces Cérebro-Computador , Tecnologia Assistiva , Inteligência Artificial , Computadores , Eletroencefalografia , Humanos , Movimento , Interface Usuário-ComputadorRESUMO
PLAIN ENGLISH SUMMARY: Involving consumers and community members in the research process is an important step towards developing and delivering effective, person-centered health care. The National Health and Medical Research Council have provided recommendations for involving consumers and community members in research; however, definitive actions to implement these are not well defined.To address this, an established research centre in Melbourne, Australia, has developed a consumer and community involvement framework to incorporate the national recommendations into their research program. This paper describes the framework the research centre has employed, in the hope that other researchers can adapt this approach and learnings to their own research practices.The framework described in this paper aims to foster partnerships between consumers, community members and researchers, and in doing so, encourages consumers to be actively involved in research to help improve future outcomes for those living with musculoskeletal conditions. Simultaneously, the framework encourages researchers to value the consumer voice in their research to ensure they yield meaningful research outcomes for those living with musculoskeletal conditions. ABSTRACT: BackgroundThe value of involving consumers and community members in every stage of the research process is gaining recognition as an important consideration in the wider research landscape. The National Health and Medical Research Council (NHMRC) has provided general recommendations for involving consumers and community members in research, although the translation of these recommendations into tangible actions has not yet been well defined. In light of these recommendations, many research institutions are now seeking to incorporate the voices of consumers and community members in their research practices.MethodsThe consumer and community involvement framework described in this paper incorporates the NHMRC's recommendations to produce a four-tiered model where consumer participants nominate their level of involvement depending on their research interests and preferred level of commitment. In ascending order, the tiers are: Consumer Subscriber, Document Reviewer, Research Buddy and Consumer Advocate.The success of this framework depends upon the implementation of effective governance and access to appropriate infrastructure. A Consumer and Community Advisory Group and a designated Consumer and Community Liaison Officer will take responsibility for ensuring appropriate interactions between consumers, researchers, and the research center's executive team. The framework aims to apply suitable support structures in place to manage expectations and minimize barriers to effective involvement, whilst ensuring that consumer contributions are appropriately valued and incorporated in the research.DiscussionInvolving consumers and community members in the research process is an important step towards developing and delivering effective, person-centered health care. While consumer and community involvement offer researchers invaluable perspectives on their research program, it provides an opportunity for consumers and community members to be actively involved in health research and improve the health and wellbeing for those living with health conditions.
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Background The post-discharge Medicines-Use-Review (dMUR) is a commissioned service in England and Wales whereby community pharmacists facilitate patients' understanding of their medicines and resolve any medicine-related problems. This service is poorly utilised. Objective To explore the impact of raising hospital patients' awareness of dMURs on their uptake. Setting Hospital in South East England. Method Patients on medical wards with at least one change (medicine, or dose regimen) to their admission medicines were provided with standardized written and verbal information about the service. Participants were responsible for their own medicines and anticipated that they would be discharged home. Structured telephone interviews conducted 4 weeks after discharge explored any medicine-related issues experienced, and reasons for engaging, or not, with the dMUR service. Responses to closed questions were analysed using descriptive statistics. Responses to open questions were analysed thematically. Ethics approval was obtained. Main outcome measure Proportion of patients who received a dMUR and their motivations or barriers to accessing the service. Results Hundred patients were recruited and 84 interviewed. Their mean (SD) age was 73 (11) years. They were taking a median (range) of 9 (2-19) medicines. 67% (56/84) remembered receiving information about dMURs. Nine (11%) had attempted to make an appointment although four had not received the service because the pharmacist was unavailable. Most (88%) were not planning to access the service. The most common reason given was poor morbidity or mobility (13/31, 42%). Conclusion The use of written and verbal information to encourage patients to use the dMUR service had minimal impact.
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Serviços Comunitários de Farmácia/estatística & dados numéricos , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Reconciliação de Medicamentos , Alta do Paciente , Participação do Paciente/psicologia , Idoso , Estudos Transversais , Inglaterra , Feminino , Humanos , Masculino , Educação de Pacientes como Assunto , Telefone , País de GalesRESUMO
Elucidating the kinetics of DNA passage through a solid-state nanopore is a fertile field of research, and mechanisms for controlling capture, passage, and trapping of biopolymers are likely to find numerous technological applications. Here we present a nanofiltered nanopore device, which forms an entropic cage for DNA following first passage through the nanopore, trapping the translocated DNA and permitting recapture for subsequent reanalysis and investigation of kinetics of passage under confinement. We characterize the trapping properties of this nanodevice by driving individual DNA polymers into the nanoscale gap separating the nanofilter and the pore, forming an entropic cage similar to a "two pores in series" device, leaving polymers to diffuse in the cage for various time lengths, and attempting to recapture the same molecule. We show that the cage results in effectively permanent trapping when the radius of gyration of the target polymer is significantly larger than the radii of the pores in the nanofilter. We also compare translocation dynamics as a function of translocation direction in order to study the effects of confinement on DNA just prior to translocation, providing further insight into the nanopore translocation process. This nanofiltered nanopore device realizes simple fabrication of a femtoliter nanoreactor in which to study fundamental biophysics and biomolecular reactions on the single-molecule level. The device provides an electrically-permeable single-molecule trap with a higher entropic barrier to escape than previous attempts to fabricate similar structures.
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KEY POINTS: In the bladder suburothelial microvasculature, pericytes in different microvascular segments develop spontaneous Ca2+ transients with or without associated constrictions. Spontaneous Ca2+ transients in pericytes of all microvascular segments primarily rely on the cycles of Ca2+ uptake and release by the sarco- and endoplasmic reticulum. The synchrony of spontaneous Ca2+ transients in capillary pericytes exclusively relies on the spread of depolarizations resulting from the opening of Ca2+ -activated chloride channels (CaCCs) via gap junctions. CaCC-dependent depolarizations further activate L-type voltage-dependent Ca2+ channels as required for the synchrony of Ca2+ transients in pericytes of pre-capillary arterioles, post-capillary venules and venules. Capillary pericytes may drive spontaneous Ca2+ transients in pericytes within the suburothelial microvascular network by sending CaCC-dependent depolarizations via gap junctions. ABSTRACT: Mural cells in the microvasculature of visceral organs develop spontaneous Ca2+ transients. However, the mechanisms underlying the integration of these Ca2+ transients within a microvascular unit remain to be clarified. In the present study, the origin of spontaneous Ca2+ transients and their propagation in the bladder suburothelial microvasculature were explored. Cal-520 fluorescence Ca2+ imaging and immunohistochemistry were carried out on mural cells using mice expressing red fluorescent protein (DsRed) under control of the NG2 promotor. NG2(+) pericytes in both pre-capillary arterioles (PCAs) and capillaries developed synchronous spontaneous Ca2+ transients. By contrast, although NG2-DsRed also labelled arteriolar smooth muscle cells, these cells remained quiescent. Both NG2(+) pericytes in post-capillary venules (PCVs) and NG2(-) venular pericytes exhibited propagated Ca2+ transients. L-type voltage-dependent Ca2+ channel (LVDCC) blockade with nifedipine prevented Ca2+ transients or disrupted their synchrony in PCA, PCV and venular pericytes without dis-synchronizing Ca2+ transients in capillary pericytes. Blockade of gap junctions with carbenoxolone or Ca2+ -activated chloride channels (CaCCs) with 4,4'-diisothiocyanato-2,2'-stilbenedisulphonic acid disodium salt prevented Ca2+ transients in PCA and venular pericytes and disrupted the synchrony of Ca2+ transients in capillary and PCV pericytes. Spontaneous Ca2+ transients in pericytes of all microvascular segments were abolished or suppressed by cyclopiazonic acid, caffeine or tetracaine. The synchrony of Ca2+ transients in capillary pericytes arising from spontaneous Ca2+ release from the sarco- and endoplasmic reticulum appears to rely exclusively on CaCC activation, whereas subsequent LVDCC activation is required for the synchrony of Ca2+ transients in pericytes of other microvascular segments. Capillary pericytes may drive spontaneous activity in the suburothelial microvascular unit to facilitate capillary perfusion.
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Sinalização do Cálcio , Cálcio/metabolismo , Capilares/fisiologia , Canais de Cloreto/metabolismo , Microvasos/fisiologia , Pericitos/fisiologia , Bexiga Urinária/fisiologia , Animais , Feminino , Junções Comunicantes , Masculino , Camundongos , Bexiga Urinária/irrigação sanguínea , Veias/fisiologiaRESUMO
OBJECTIVE: To evaluate breast cancer screening (BCS) practice and explore the relationship between sociodemographic factors and breast awareness (BA), clinical breast examination (CBE) and mammography in migrant-Australian women. METHOD: Secondary analysis was performed on the pooled sample (n=1,744) from five cross-sectional studies of BCS rates among immigrant-Australian women, and the associated sociodemographic factors. RESULTS: Only 19% of women participated in routine BA, 27.4% of women in the target group of >40 year presented for an annual CBE, and 60.6% of women in the target group of 50-74 years received a biennial mammogram. Associated sociodemographic factors differed by modality except for length of Australian residency. In multivariable analysis, age, length of Australian residency, marital status, and employment status accounted for more than 50% of the variance in regular BA and CBE. CONCLUSION: These findings indicate suboptimal BCS rates persist among migrant-Australian women, and suggest the importance of certain sociodemographic factors in BCS practice. Implications for public health: Further education is required for BA and CBE practice in immigrant-Australian women, especially for those who have resided in Australia less than 12 years without a partner.
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Neoplasias da Mama/diagnóstico , Detecção Precoce de Câncer/estatística & dados numéricos , Conhecimentos, Atitudes e Prática em Saúde , Mamografia/estatística & dados numéricos , Migrantes/psicologia , Idoso , Austrália/epidemiologia , Neoplasias da Mama/epidemiologia , Estudos Transversais , Emigração e Imigração/estatística & dados numéricos , Feminino , Humanos , Estado Civil/estatística & dados numéricos , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Fatores Socioeconômicos , Fatores de Tempo , Migrantes/estatística & dados numéricosRESUMO
PURPOSE: Residency poses challenges for residents' personal relationships. Research suggests residents rely on family and friends for support during their training. The authors explored the impact of residency demands on residents' personal relationships and the effects changes in those relationships could have on their wellness. METHOD: The authors used a constructivist grounded theory approach. In 2012-2014, they conducted semistructured interviews with a purposive and theoretical sample of 16 Canadian residents from various specialties and training levels. Data analysis occurred concurrently with data collection, allowing authors to use a constant comparative approach to explore emergent themes. Transcripts were coded; codes were organized into categories and then themes to develop a substantive theory. RESULTS: Residents perceived their relationships to be influenced by their evolving professional identity: Although personal relationships were important, being a doctor superseded them. Participants suggested they were forced to adapt their personal relationships, which resulted in the evolution of a hierarchy of relationships that was reinforced by the work-life imbalance imposed by their training. This poor work-life balance seemed to result in relationship issues and diminish residents' wellness. Participants applied coping mechanisms to manage the conflict arising from the adaptation and protect their relationships. To minimize the effects of identity dissonance, some gravitated toward relationships with others who shared their professional identity or sought social comparison as affirmation. CONCLUSIONS: Erosion of personal relationships could affect resident wellness and lead to burnout. Educators must consider how educational programs impact relationships and the subsequent effects on resident wellness.
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Nível de Saúde , Internato e Residência , Relações Interpessoais , Saúde Mental , Adaptação Psicológica , Canadá , Feminino , Teoria Fundamentada , Humanos , Masculino , Pesquisa Qualitativa , Identificação Social , Equilíbrio Trabalho-VidaRESUMO
CONTEXT: Nepal is currently experiencing a rapid growth in non-communicable diseases (NCDs). Depression has previously been associated with NCDs in South Asia; however, data regarding its prevalence and risk factors is lacking in Nepal. AIMS: This study aims to describe the prevalence of and risk factors for depressive symptoms in a suburban population of adults within Nepal. SETTING AND DESIGN: We conducted a cross-sectional analysis of baseline data collected from participants enrolled in the Dhulikhel Heart Study (DHS), a population-based, longitudinal cohort study investigating cardiovascular risk factors in Dhulikhel, a suburban town outside Kathmandu. SUBJECTS AND METHODS: Baseline questionnaire data from 1,073 adults age 18 years and older included the Center for Epidemiologic Studies Depression Scale (CESD). A score of 16 or greater on the CESD has been shown to indicate major depressive symptomatology. STATISTICAL ANALYSIS: Using STATA 13 we conducted Pearson's chi-squared tests and multiple logistic regressions to examine associations between the binary CESD score and gender, age, education, marital status, body mass index (BMI), physical activity, and hypertensive status. RESULTS: The mean CESD score in the sample was 11.7 (SD: 5.3), with 21.3% scoring 16 or greater. Age over 60 and lack of formal education were associated with increased risk of depressive symptoms. Being physically active was associated with decreased risk of depressive symptoms. CONCLUSIONS: The estimated prevalence of depression among adults in Dhulikhel was 21.3%. Significant risk factors for increased depressive symptoms included lack of formal education, age over 60, and physical inactivity.
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OBJECTIVES/HYPOTHESIS: To describe initial presentations and idiosyncrasies in establishing the diagnosis for human papillomavirus-related (HPV(+) ) compared to HPV-unrelated (HPV(-) ) oropharyngeal carcinoma (OPC). STUDY DESIGN: A single institution retrospective series derived from an institutional prospectively compiled database supplemented by chart review. METHODS: We reviewed consecutive OPC patients referred to an academic tertiary cancer center from 2009 to 2011. HPV status was evaluated by p16 staining. Signs/symptoms and procedures to establish diagnosis were recorded independently by two abstractors blinded to the HPV status during data retrieval. Initial presentations (signs/symptoms), interval, and the procedures to establish the diagnosis were compared between HPV(+) and HPV(-) OPC. RESULTS: The most common initial presentation was an asymptomatic nodal mass for HPV(+) patients (n = 208; 69% vs. 29%, P < .001) in contrast to dysphagia/odynophagia for HPV(-) (n = 96; 34% vs. 63%, P < .001). Protracted interval (>12 months) from onset of signs/symptoms to diagnosis was observed in 18 (9%) HPV(+) versus three (3%) HPV(-) patients (P = .058). More HPV(+) patients required repeated (≥2) biopsy procedures (56% vs. 10%, P < .001). Misattribution to other disease occurred in eight (4%) HPV(+) patients (seven were mistaken as having a "branchial cleft cyst" when there were cystic lymph nodes and one as having a "lymphoma") compared to none in HPV(-) . CONCLUSIONS: About two-thirds of HPV(+) patients present with an asymptomatic neck mass and often require multiple biopsy procedures to establish the diagnosis. Idiosyncrasies in appreciating the diagnostic setting (cystic lymph node, misattribution to other entities, or submucosal location of the tumor) or patient-related factors could delay the diagnosis of HPV(+) OPC. LEVEL OF EVIDENCE: 4 Laryngoscope, 126:2270-2275, 2016.
Assuntos
Carcinoma/diagnóstico , Neoplasias Orofaríngeas/diagnóstico , Papillomaviridae , Infecções por Papillomavirus/complicações , Avaliação de Sintomas/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Carcinoma/virologia , Bases de Dados Factuais , Diagnóstico Tardio , Erros de Diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pescoço/patologia , Pescoço/cirurgia , Pescoço/virologia , Neoplasias Orofaríngeas/virologia , Infecções por Papillomavirus/virologia , Estudos Prospectivos , Estudos RetrospectivosRESUMO
Prostatic smooth muscle develops spontaneous myogenic tone which is modulated by autonomic neuromuscular transmission. This study aimed to investigate the role of purinergic transmission in regulating electrical activity of prostate smooth muscle and whether its contribution may be altered with age. Intracellular recordings were simultaneously made with isometric tension recordings in smooth muscle preparations of the guinea-pig prostate. Immunostaining for P2X1 receptors on whole mount preparations was also performed. In prostate preparations which generated spontaneous slow waves, electrical field stimulation (EFS)-evoked excitatory junction potentials (EJPs) which were abolished by guanethidine (10 µM), α-ß-methylene ATP (10 µM) or pyridoxal phosphate-6-azophenyl-2,4-disulfonic acid (PPADS, 10 µM) but not phentolamine (1 µM). Consistently, immunostaining revealed the expression of P2X1 receptors on prostatic smooth muscle. EJPs themselves did not cause contractions, but EJPs could sum to trigger a slow wave and associated contraction. Yohimbine (1 µM) and 3,7-dimethyl-1-propargylxanthine (DMPX, 10 µM) but not propranolol (1 µM) potentiated EJPs. Although properties of EJPs were not different between young and aging guinea-pig prostates, ectoATPase inhibitor ARL 67156 (100 µM) augmented EJP amplitudes by 64.2 ± 29.6% in aging animals, compared to 22.1 ± 19.9% in young animals. These results suggest that ATP released from sympathetic nerves acts on P2X1 purinoceptors located on prostate smooth muscle to evoke EJPs, while pre-junctional α2-adrenergic and adenosine A2 receptors may play a role in preventing excessive transmitter release. Age-related up-regulation of enzymatic ATP breakdown may be a compensatory mechanism for the enhanced purinergic transmission which would cause hypercontractility arising from increased ATP release in older animals.