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1.
Age Ageing ; 53(3)2024 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-38497236

RESUMO

BACKGROUND: Inpatient prevalence of Parkinson's disease (PD) delirium varies widely across the literature. Delirium in general older populations is associated with adverse outcomes, such as increased mortality, dementia, and institutionalisation. However, to date there are no comprehensive prospective studies in PD delirium. This study aimed to determine delirium prevalence in hospitalised PD participants and the association with adverse outcomes, compared to a control group of older adults without PD. METHODS: Participants were hospitalised inpatients from the 'Defining Delirium and its Impact in Parkinson's Disease' and the 'Delirium and Cognitive Impact in Dementia' studies comprising 121 PD participants and 199 older adult controls. Delirium was diagnosed prospectively using the Diagnostic and Statistical Manual of Mental Disorders 5th Edition criteria. Outcomes were determined by medical note reviews and/or home visits 12 months post hospital discharge. RESULTS: Delirium was identified in 66.9% of PD participants compared to 38.7% of controls (p < 0.001). In PD participants only, delirium was associated with a significantly higher risk of mortality (HR = 3.3 (95% confidence interval [CI] = 1.3-8.6), p = 0.014) and institutionalisation (OR = 10.7 (95% CI = 2.1-54.6), p = 0.004) 12 months post-discharge, compared to older adult controls. However, delirium was associated with an increased risk of developing dementia 12 months post-discharge in both PD participants (OR = 6.1 (95% CI = 1.3-29.5), p = 0.024) and in controls (OR = 13.4 (95% CI = 2.5-72.6), p = 0.003). CONCLUSION: Delirium is common in hospitalised PD patients, affecting two thirds of patients, and is associated with increased mortality, institutionalisation, and dementia. Further research is essential to understand how to accurately identify, prevent and manage delirium in people with PD who are in hospital.


Assuntos
Delírio , Demência , Doença de Parkinson , Humanos , Idoso , Estudos Prospectivos , Doença de Parkinson/complicações , Doença de Parkinson/diagnóstico , Doença de Parkinson/epidemiologia , Delírio/diagnóstico , Delírio/epidemiologia , Delírio/etiologia , Estudos Longitudinais , Assistência ao Convalescente , Alta do Paciente , Demência/diagnóstico , Demência/epidemiologia , Demência/complicações
2.
J Adv Nurs ; 80(8): 3298-3308, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38186082

RESUMO

AIM: To explore Remote Area Nurses' experiences of the implementation of workplace health and safety policies and risk mitigation strategies in Australian very remote primary health clinics. DESIGN: This qualitative study used online semi-structured interviews, with participants purposively sampled to maximize variation in work location and service type. Data were analysed using a reflexive thematic analysis approach. Coding was carried out inductively, with NVivo 12 aiding data management. SETTING: The interviews were conducted from 24 Februrary 2021 to 06 March 2021 with Remote Area Nurses from very remote primary health clinics in Australia. PARTICIPANTS: Fifteen Remote Area Nurses participated in the study. RESULTS: Thematic analysis revealed varied approaches to workplace safety among the different health services and regions. While the spread of 'never alone' policies in many clinics addressed one of the significant risks faced by Remote Area Nurses, gaps remained even for hazards specifically highlighted in existing work health and safety legislation. Meaningful collaboration with staff and the community, local orientation, preparation for the role and providing quality care were protective factors for staff safety. Understaffing, unsafe infrastructure and inadequate equipment were common concerns among Remote Area Nurses. CONCLUSION: Health services need to prioritize workplace safety and take a continuous quality improvement approach to its implementation. This will include ensuring safety strategies are appropriate for the local context, improving infrastructure maintenance, and establishing sustainable second responder systems such as a pool of drivers with local knowledge. IMPLICATIONS FOR THE PROFESSION: Poor personal safety contributes to burnout and high turnover of staff. Nurses' insights into the barriers and enablers of current workplace safety strategies will aid policymakers and employers in future improvements. REPORTING METHOD: COREQ reporting guidelines were followed. PIPE STATEMENT: A panel of six Remote Area Nurses collaborated in the development of this project.


Assuntos
Atenção Primária à Saúde , Pesquisa Qualitativa , Local de Trabalho , Humanos , Austrália , Feminino , Adulto , Local de Trabalho/psicologia , Masculino , Pessoa de Meia-Idade , Saúde Ocupacional/normas , Serviços de Saúde Rural , Atitude do Pessoal de Saúde , Recursos Humanos de Enfermagem/psicologia
3.
BMC Pediatr ; 23(1): 557, 2023 11 06.
Artigo em Inglês | MEDLINE | ID: mdl-37932711

RESUMO

BACKGROUND: Joint hypermobility is a common clinical finding amongst hereditary connective tissue disorders that is observed in pediatric rheumatological settings, and often associated with chronic pain. Joint hypermobility may also contribute to deficits in physical functioning and physical activity, but previous findings have been inconsistent. It is possible that physical activity impairment in joint hypermobility may be due to chronic aberrant movement patterns subsequent to increased joint laxity. METHOD: As part of a larger randomized pilot trial of juvenile onset fibromyalgia (JFM), a secondary analysis was conducted to explore whether adolescents with JFM and joint hypermobility differed from non-joint hypermobility peers in terms of pain, daily functioning, and biomechanics (i.e., kinetics and kinematics) during a moderately vigorous functional task. RESULTS: From the larger sample of adolescents with JFM (N = 36), 13 adolescents (36.1%) met criteria for joint hypermobility and 23 did not have joint hypermobility. Those with joint hypermobility exhibited poorer overall functioning (Md = 20, Q1,Q3 [5.8, 7.6] vs. Md = 29, Q1,Q3 [5.1, 7.6]) but there were no differences in pain (Md = 6.9, Q1,Q3 [22, 33], vs. Md = 6.45, Q1,Q3 [15, 29.5]). Inspection of time-series plots suggests those with joint hypermobility exhibited decreased hip flexion and frontal plane hip moment (e.g., resistance to dynamic valgus) during the landing phase (early stance) and greater hip and knee transverse plane moments during the propulsion phase (late stance) of the drop vertical jump task (DVJ). No other differences in lower extremity biomechanics were observed between study groups. CONCLUSIONS: In this exploratory study, there were small but notable differences in biomechanics between patients with JFM who also had joint hypermobility versus those without joint hypermobility during a landing and jumping task (e.g., DVJ). These differences may indicate decreased joint stiffness during landing, associated with increased joint laxity and decreased joint stability, which may put them at greater risk for injury. Further study with a larger sample size is warranted to examine whether these biomechanical differences in patients with JFM and joint hypermobility affect their response to typical physical therapy or exercise recommendations.


Assuntos
Dor Crônica , Fibromialgia , Instabilidade Articular , Criança , Humanos , Adolescente , Fenômenos Biomecânicos/fisiologia , Projetos Piloto , Movimento/fisiologia
4.
J Adolesc ; 95(6): 1274-1287, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37248071

RESUMO

INTRODUCTION: In older adolescence, stress has been found to be prevalent. It has been seen that higher physical activity (PA) relates to lower stress levels, which, in turn, relates to fewer anxiety and depressive symptoms (internalizing symptoms). However, how these associations function is not fully understood. PA is strongly associated with greater self-esteem in adolescents. As greater self-esteem is thought to aid better coping with stress and has been seen as beneficial for mental health in adolescents, PA may be associated with lower stress and better mental health through self-esteem and more adaptive stress appraisals. Therefore, the aim of the study was to examine the relationships between PA, self-esteem, stress, and mental health. METHODS: A cross-sectional design was employed, and path analysis was implemented. PA, self-esteem, stress appraisals, distress tolerance, perceived stress, anxiety, and depression were assessed using online questionnaires from 244 adolescent participants from the United Kingdom (aged 15-19, M = 16.75 [SD = 0.82], 145 female). RESULTS: Path analysis revealed that PA was associated with lower perceived stress through increased self-esteem, adaptive appraisals, and higher distress tolerance (total standardized indirect effect; p = .007 (-0.25 to -0.11). Moreover, lower perceived stress was associated with lower anxiety (standardized direct effect; p < .001 [2.65-4.0] and depressive symptoms (standardized direct effect; p < .001 [0.33-0.63]). CONCLUSIONS: Findings suggest that higher PA could be effective in improving mental health among older adolescents, due to its association with perceived stress through higher self-esteem and more adaptive appraisals of stress.


Assuntos
Depressão , Exercício Físico , Adolescente , Feminino , Humanos , Adulto Jovem , Ansiedade/psicologia , Estudos Transversais , Depressão/psicologia , Autoimagem , Estresse Psicológico , Masculino
5.
J Pediatr Psychol ; 46(8): 1015-1024, 2021 08 19.
Artigo em Inglês | MEDLINE | ID: mdl-34131745

RESUMO

OBJECTIVE: Sickle cell disease (SCD) is a group of inherited blood disorders. The central feature of this chronic condition is pain. Several identified risk factors exacerbate the impact of pain on quality of life (QOL) in SCD; however, there are relatively fewer investigations of strengths-based resilience variables that might buffer the influence of pain on living with SCD. The purpose of this study was to examine strength-based resilience processes in youth with SCD and their parents. Grounded in an ecological resilience-risk model, we evaluated whether adolescent and parent protective factors (pain acceptance, mindfulness, and psychological flexibility) moderated the relation between adolescent-reported pain burden and QOL. METHODS: Ninety-three 12- to 18-year-old adolescents with SCD and their parents participated. Adolescents completed assessments of pain characteristics, pain acceptance, mindfulness, and QOL. Parents completed instruments measuring demographic and disease variables and parent psychological flexibility. RESULTS: Pain variables were associated with protective factors in predicted directions. Adolescent acceptance and mindfulness were positively correlated with QOL. Parent psychological flexibility and adolescent QOL were not related. After controlling for demographic, pain, and disease variables, moderation analyses indicated that adolescent pain acceptance buffered the relation between SCD pain burden and QOL. Moderation analyses were not significant for adolescent mindfulness or parent psychological flexibility. CONCLUSIONS: Results suggest that strengths-based factors may play an important role for adolescents' QOL within the context of SCD pain. Interventions that enhance teenagers' ability to accept pain might be particularly useful to improve QOL in adolescents living with SCD pain.


Assuntos
Anemia Falciforme , Qualidade de Vida , Adolescente , Criança , Humanos , Dor , Pais
6.
Mov Disord ; 35(11): 2086-2090, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32845549

RESUMO

BACKGROUND: Knowledge of characteristics in upper limb dystonia remains limited, derived primarily from small, single-site studies. OBJECTIVE: The objective of this study was to characterize demographic and clinical characteristics of upper limb dystonia from the Dystonia Coalition data set, a large, international, multicenter resource. METHODS: We evaluated clinical and demographic characteristics of 367 participants with upper limb dystonia from onset, comparing across subcategories of focal (with and without dystonia spread) versus nonfocal onset. RESULTS: Focal onset occurred in 80%; 67% remained focal without spread. Task specificity was most frequent in this subgroup, most often writer's cramp and affecting the dominant limb (83%). Focal onset with spread was more frequent in young onset (<21 years). Focal onset occurred equally in women and men; nonfocal onset affected women disproportionately. CONCLUSIONS: Upper limb dystonia distribution, focality, and task specificity relate to onset age and likelihood of regional spread. Observations may inform clinical counseling and design, execution, and interpretation of future studies. © 2020 International Parkinson and Movement Disorder Society.


Assuntos
Distonia , Distúrbios Distônicos , Demografia , Distonia/epidemiologia , Distúrbios Distônicos/epidemiologia , Feminino , Humanos , Masculino
7.
Mycopathologia ; 185(5): 843-865, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32040709

RESUMO

Endemic mycoses such as histoplasmosis, coccidioidomycosis, blastomycosis, paracoccidioidomycosis, and talaromycosis are well-known causes of focal and systemic disease within specific geographic areas of known endemicity. However, over the past few decades, there have been increasingly frequent reports of infections due to endemic fungi in areas previously thought to be "non-endemic." There are numerous potential reasons for this shift such as increased use of immune suppressive medications, improved diagnostic tests, increased disease recognition, and global factors such as migration, increased travel, and climate change. Regardless of the causes, it has become evident that our previous understanding of endemic regions for these fungal diseases needs to evolve. The epidemiology of the newly described Emergomyces is incomplete; our understanding of it continues to evolve. This review will focus on the evidence underlying the established areas of endemicity for these mycoses as well as new data and reports from medical literature that support the re-thinking these geographic boundaries. Updating the endemic fungi maps would inform clinical practice and global surveillance of these diseases.


Assuntos
Doenças Endêmicas , Micoses/epidemiologia , Blastomicose/epidemiologia , Coccidioidomicose/epidemiologia , Fungos/patogenicidade , Histoplasmose/epidemiologia , Humanos , Paracoccidioidomicose/epidemiologia
8.
Demography ; 56(1): 151-167, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30460494

RESUMO

Cohabitation has become increasingly accepted and normalized as part of the family system in Canada and has become the most common way to form a first union. The changing role of cohabitation in the family system is often understood as being driven by the ideational changes associated with the second demographic transition, but increasing international evidence indicates that this explanation is incomplete. Using nationally representative retrospective data from Canadians born between 1940 and 1979 from the 2011 General Social Survey, this study examines transitions out of first premarital cohabitation and fertility within these unions as two measures of the changing role of cohabitation. Across birth cohorts, Canadians are increasingly likely to use cohabitation as an alternative to marriage and less likely to use cohabitation as a short-lived prelude to marriage. These overall trends support the second demographic transition perspective. However, this study also finds that Canadians without a bachelor's degree are far more likely to experience a birth within cohabitation and that their likelihood of transitioning to marriage has declined steeply across birth cohorts. This educational gradient in childbearing in cohabitation and the increasing educational differences in union transitions over time provide support for the diverging destinies thesis in Canada.


Assuntos
Escolaridade , Fertilidade , Estado Civil , Comportamento Sexual , Adulto , Canadá , Feminino , Humanos , Modelos Logísticos , Masculino , Dinâmica Populacional , Estudos Retrospectivos , Inquéritos e Questionários , Adulto Jovem
9.
Med Ref Serv Q ; 38(3): 211-217, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31379289

RESUMO

This case study describes how librarians at Rudolph Matas Library of the Health Sciences at Tulane University have partnered and worked with several departments that fall under the Vice President of Research. Examples include detailed literature searches, cooperative purchasing, and clinical trial registration. Some upcoming activities and opportunities for collaboration will also be discussed. Finally, the authors will share some valuable lessons learned through the process of collaboration with the research infrastructure of the university.


Assuntos
Pesquisa Biomédica/organização & administração , Comportamento Cooperativo , Relações Interinstitucionais , Bibliotecas Médicas/organização & administração , Serviços de Biblioteca/organização & administração , Humanos , Nova Orleans , Estudos de Casos Organizacionais , Universidades
10.
Phys Rev Lett ; 118(2): 023601, 2017 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-28128614

RESUMO

Frequency conversion of nonclassical light enables robust encoding of quantum information based upon spectral multiplexing that is particularly well-suited to integrated-optics platforms. Here we present an intrinsically deterministic linear-optics approach to spectral shearing of quantum light pulses and show it preserves the wave-packet coherence and quantum nature of light. The technique is based upon an electro-optic Doppler shift to implement frequency shear of heralded single-photon wave packets by ±200 GHz, which can be scaled to an arbitrary shift. These results demonstrate a reconfigurable method to controlling the spectral-temporal mode structure of quantum light that could achieve unitary operation.

11.
Demography ; 54(6): 2073-2099, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29019019

RESUMO

Healthy grandparenthood represents the period of overlap during which grandparents and grandchildren can build relationships, and grandparents can make intergenerational transfers to younger kin. The health of grandparents has important implications for upward and downward intergenerational transfers within kinship networks in aging societies. Although the length of grandparenthood is determined by fertility and mortality patterns, the amount of time spent as a healthy grandparent is also affected by morbidity. In this study, we estimate the length of healthy grandparenthood for the first time. Using U.S. and Canadian data, we examine changes in the length of healthy grandparenthood during years when grandparenthood was postponed, health improved, and mortality declined. We also examine variation in healthy grandparenthood by education and race/ethnicity within the United States. Our findings show that the period of healthy grandparenthood is becoming longer because of improvements in health and mortality, which more than offset delays in grandparenthood. Important variation exists within the United States by race/ethnicity and education, which has important implications for family relationships and transfers.


Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Avós , Nível de Saúde , Hispânico ou Latino/estatística & dados numéricos , População Branca/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Canadá/epidemiologia , Demografia , Feminino , Humanos , Expectativa de Vida , Tábuas de Vida , Masculino , Pessoa de Meia-Idade , Mortalidade , Distribuição por Sexo , Fatores Socioeconômicos , Inquéritos e Questionários , Estados Unidos/epidemiologia , Adulto Jovem
12.
Mov Disord ; 31(12): 1874-1882, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27753188

RESUMO

BACKGROUND: Clinical characteristics of isolated idiopathic cervical dystonia such as onset site and spread to and from additional body regions have been addressed in single-site studies with limited data and incomplete or variable dissociation of focal and segmental subtypes. The objectives of this study were to characterize the clinical characteristics and demographics of isolated idiopathic cervical dystonia in the largest standardized multicenter cohort. METHODS: The Dystonia Coalition, through a consortium of 37 recruiting sites in North America, Europe, and Australia, recruited 1477 participants with focal (60.7%) or segmental (39.3%) cervical dystonia on examination. Clinical and demographic characteristics were evaluated in terms of the body region of dystonia onset and spread. RESULTS: Site of dystonia onset was: (1) focal neck only (78.5%), (2) focal onset elsewhere with later segmental spread to neck (13.3%), and (3) segmental onset with initial neck involvement (8.2%). Frequency of spread from focal cervical to segmental dystonia (22.8%) was consistent with prior reports, but frequency of segmental onset with initial neck involvement was substantially higher than the 3% previously reported. Cervical dystonia with focal neck onset, more than other subtypes, was associated with spread and tremor of any type. Sensory tricks were less frequent in cervical dystonia with segmental components, and segmental cervical onset occurred at an older age. CONCLUSIONS: Subgroups had modest but significant differences in the clinical characteristics that may represent different clinical entities or pathophysiologic subtypes. These findings are critical for design and implementation of studies to describe, treat, or modify disease progression in idiopathic isolated cervical dystonia. © 2016 International Parkinson and Movement Disorder Society.


Assuntos
Torcicolo/epidemiologia , Torcicolo/fisiopatologia , Adulto , Idoso , Bases de Dados Factuais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Torcicolo/classificação
13.
J Clin Microbiol ; 53(8): 2622-31, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26041902

RESUMO

Whole-genome sequencing (WGS) was carried out on 87 isolates of sequence type 111 (ST-111) of Pseudomonas aeruginosa collected between 2005 and 2014 from 65 patients and 12 environmental isolates from 24 hospital laboratories across the United Kingdom on an Illumina HiSeq instrument. Most isolates (73) carried VIM-2, but others carried IMP-1 or IMP-13 (5) or NDM-1 (1); one isolate had VIM-2 and IMP-18, and 7 carried no metallo-beta-lactamase (MBL) gene. Single nucleotide polymorphism analysis divided the isolates into distinct clusters; the NDM-1 isolate was an outlier, and the IMP isolates and 6/7 MBL-negative isolates clustered separately from the main set of 73 VIM-2 isolates. Within the VIM-2 set, there were at least 3 distinct clusters, including a tightly clustered set of isolates from 3 hospital laboratories consistent with an outbreak from a single introduction that was quickly brought under control and a much broader set dominated by isolates from a long-running outbreak in a London hospital likely seeded from an environmental source, requiring different control measures; isolates from 7 other hospital laboratories in London and southeast England were also included. Bayesian evolutionary analysis indicated that all the isolates shared a common ancestor dating back ∼50 years (1960s), with the main VIM-2 set separating approximately 20 to 30 years ago. Accessory gene profiling revealed blocks of genes associated with particular clusters, with some having high similarity (≥95%) to bacteriophage genes. WGS of widely found international lineages such as ST-111 provides the necessary resolution to inform epidemiological investigations and intervention policies.


Assuntos
Proteínas de Bactérias/genética , Microbiologia Ambiental , Genoma Bacteriano , Genótipo , Infecções por Pseudomonas/microbiologia , Pseudomonas aeruginosa/classificação , Análise de Sequência de DNA , beta-Lactamases/genética , Análise por Conglomerados , Surtos de Doenças , Evolução Molecular , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Epidemiologia Molecular , Dados de Sequência Molecular , Polimorfismo de Nucleotídeo Único , Infecções por Pseudomonas/epidemiologia , Pseudomonas aeruginosa/enzimologia , Pseudomonas aeruginosa/genética , Pseudomonas aeruginosa/isolamento & purificação , Reino Unido/epidemiologia
14.
J Antimicrob Chemother ; 70(12): 3250-8, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26318194

RESUMO

OBJECTIVES: We sought to characterize the genetic environment of blaVIM and blaIMP genes in Pseudomonas aeruginosa isolates from the UK; these included members of six previously described prevalent complexes, A-F, which correspond to international 'high-risk clones', along with diverse strains. METHODS: Metallo-ß-lactamase (MBL)-encoding class 1 integrons were amplified by PCR from 218 P. aeruginosa isolates producing VIM-type (n = 196) or IMP-type (n = 22) enzymes, referred from UK hospital laboratories between 2003 and 2012. The variable regions of selected integrons were sequenced using a primer walking method. RESULTS: One-hundred-and-nineteen isolates had an MBL-encoding integron with the 3' conserved sequence (3'CS), 65 had Tn5090-like 3' regions and 17 had the sul1 gene, but lacked the qacEΔ1 gene; the 3' region could not be amplified using any primer combinations for the remaining 17 isolates. Six integron profiles were each seen in more than five isolates. Predominant integron types were seen amongst isolates belonging to STs 111, 233, 654/964 and 773 (complexes A, C, D and F, respectively), whereas diverse integron profiles were seen in isolates belonging to ST235 (complex B) and ST357 (complex E). CONCLUSIONS: In UK P. aeruginosa isolates, MBL genes occur in diverse class 1 integron structures, though commonly with 3' regions containing the classical 3'CS or Tn5090-like regions. Four of the six main clonal complexes, referred from multiple laboratories, carried a predominant integron type, whereas the remaining two had more diverse types.


Assuntos
Genes Bacterianos , Infecções por Pseudomonas/microbiologia , Pseudomonas aeruginosa/enzimologia , Pseudomonas aeruginosa/genética , beta-Lactamases/genética , Ordem dos Genes , Variação Genética , Genótipo , Humanos , Integrons , Reação em Cadeia da Polimerase , Pseudomonas aeruginosa/isolamento & purificação , Análise de Sequência de DNA , Reino Unido
15.
J Antimicrob Chemother ; 70(1): 103-10, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25182064

RESUMO

OBJECTIVES: Carbapenem-resistant isolates of Pseudomonas aeruginosa producing metallo-ß-lactamases (MBLs) are increasingly reported worldwide and often belong to particular 'high-risk clones'. This study aimed to characterize a comprehensive collection of MBL-producing P. aeruginosa isolates referred to the UK national reference laboratory from multiple UK laboratories over a 10 year period. METHODS: Isolates were referred to the UK national reference laboratory between 2003 and 2012 for investigation of resistance mechanisms and/or outbreaks. MBL genes were detected by PCR. Typing was carried out by nine-locus variable-number tandem repeat (VNTR) analysis and MLST. RESULTS: MBL-producing P. aeruginosa isolates were referred from 267 source patients and 89 UK laboratories. The most common isolation sites were urine (24%), respiratory (18%), wounds (17%) and blood (13%). VIM-type MBLs predominated (91% of all MBLs found), but a few IMP- and NDM-type enzymes were also identified. Diverse VNTR types were seen, but 86% of isolates belonged to six major complexes. MLST of representative isolates from each complex showed that they corresponded to STs 111, 233, 235, 357, 654 and 773, respectively. Isolates belonging to these complexes were received from between 9 and 25 UK referring laboratories each. CONCLUSIONS: The incidence of MBL-producing P. aeruginosa is increasing in the UK. The majority of these isolates belong to several 'high-risk clones', which have been previously reported internationally as host clones of MBLs.


Assuntos
Surtos de Doenças , Infecções por Pseudomonas/epidemiologia , Infecções por Pseudomonas/microbiologia , Pseudomonas aeruginosa/classificação , Pseudomonas aeruginosa/enzimologia , beta-Lactamases/metabolismo , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , DNA Bacteriano/genética , Feminino , Genótipo , Humanos , Incidência , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Repetições Minissatélites , Epidemiologia Molecular , Tipagem de Sequências Multilocus , Reação em Cadeia da Polimerase , Pseudomonas aeruginosa/genética , Pseudomonas aeruginosa/isolamento & purificação , Reino Unido/epidemiologia , Adulto Jovem
16.
Neuropsychologia ; 192: 108741, 2024 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-38040087

RESUMO

As network neuroscience can capture the systemic impact of APOE variability at a neuroimaging level, this study investigated the network-based cognitive endophenotypes of ε4-carriers and non-carriers across the continuum between normal ageing and Alzheimer's dementia (AD). We hypothesised that the impact of APOE-ε4 on cognitive functioning can be reliably captured by the measurement of graph-theory centrality. Cognitive networks were calculated in 8118 controls, 3482 MCI patients and 4573 AD patients, recruited in the National Alzheimer's Coordinating Center (NACC) database. Nodal centrality was selected as the neurofunctional readout of interest. ε4-carrier-vs.-non-carrier differences were tested in two independent NACC sub-cohorts assessed with either Version 1 or Version 2 of the Uniform Data Set neuropsychological battery. A significant APOE-dependent effect emerged from the analysis of the Logical-Memory nodes in MCI patients in both sub-cohorts. While non-carriers showed equal centrality in immediate and delayed recall, the latter was significantly less central among carriers (v1: bootstrapped confidence interval 0.107-0.667, p < 0.001; v2: bootstrapped confidence interval 0.018-0.432, p < 0.001). This indicates that, in carriers, delayed recall was, overall, significantly more weakly correlated with the other cognitive scores. These findings were replicated in the sub-groups of sole amnestic-MCI patients (n = 2971), were independent of differences in network communities, clinical severity or other demographic factors. No effects were found in the other two diagnostic groups. APOE-ε4 influences nodal properties of cognitive networks when patients are clinically classified as MCI. This highlights the importance of characterising the impact of risk factors on the wider cognitive network via network-neuroscience methodologies.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Memória Episódica , Humanos , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/genética , Doença de Alzheimer/psicologia , Apolipoproteína E4/genética , Disfunção Cognitiva/diagnóstico por imagem , Disfunção Cognitiva/genética , Cognição , Testes Neuropsicológicos
17.
Artigo em Inglês | MEDLINE | ID: mdl-38778444

RESUMO

BACKGROUND: Prior studies have indicated that female individuals outnumber male individuals for certain types of dystonia. Few studies have addressed factors impacting these sex differences or their potential biological mechanisms. OBJECTIVES: To evaluate factors underlying sex differences in the dystonias and explore potential mechanisms for these differences. METHODS: Data from individuals with various types of dystonia were analyzed in relation to sex. Data came from two different sources. One source was the Dystonia Coalition database, which contains predominantly idiopathic adult-onset focal and segmental dystonias. The second source was the MDSGene database, which contains predominantly early-onset monogenic dystonias. RESULTS: The 3222 individuals from the Dystonia Coalition included 71% female participants and 29% male participants for an overall female-to-male ratio (F:M) of 2.4. This ratio varied according to body region affected and whether dystonia was task-specific. The female predominance was age-dependent. Sex did not have a significant impact on co-existing tremor, geste antagoniste, depression or anxiety. In the 1377 individuals from the MDSGene database, female participants outnumbered male participants for some genes (GNAL, GCH1, and ANO3) but not for other genes (THAP1, TH, and TOR1A). CONCLUSIONS: These results are in keeping with prior studies that have indicated female individuals outnumber male individuals for both adult-onset idiopathic and early onset monogenic dystonias. These results extend prior observations by revealing that sex ratios depend on the type of dystonia, age, and underlying genetics.

18.
Opt Express ; 21(5): 5309-17, 2013 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-23482102

RESUMO

We experimentally demonstrate the generation of multi-photon Fock states with up to three photons in well-defined spatial-temporal modes synchronized with a classical clock. The states are characterized using quantum optical homodyne tomography to ensure mode selectivity. The three-photon Fock states are probabilistically generated by pulsed spontaneous parametric down conversion at a rate of one per second, enabling complete characterization in 12 hours.

19.
J Nat Prod ; 76(3): 316-21, 2013 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-23145932

RESUMO

Effects of curcuminoids on breast cancer cell secretion of the bone-resorptive peptide parathyroid hormone-related protein (PTHrP) and on lytic breast cancer bone metastasis were evaluated. In vitro, transforming growth factor (TGF)-ß-stimulated PTHrP secretion was inhibited by curcuminoids (IC50 = 24 µM) in MDA-MB-231 human breast cancer cells independent of effects on cell growth inhibition. Effects on TGF-ß signaling revealed decreases in phospho-Smad2/3 and Ets-1 protein levels with no effect on p-38 MAPK-mediated TGF-ß signaling. In vivo, mice were inoculated with MDA-MB-231 cells into the left cardiac ventricle and treated ip every other day with curcuminoids (25 or 50 mg/kg) for 21 days. Osteolytic bone lesion area was reduced up to 51% (p < 0.01). Consistent with specific effects on bone osteolysis, osteoclast number at the bone-tumor interface was reduced up to 53% (p < 0.05), while tumor area within bone was unaltered. In a separate study, tumor mass in orthotopic mammary xenografts was also unaltered by treatment. These data suggest that curcuminoids prevent TGF-ß induction of PTHrP and reduce osteolytic bone destruction by blockade of Smad signaling in breast cancer cells.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Curcumina/análogos & derivados , Curcumina/farmacologia , Fator de Crescimento Transformador beta/antagonistas & inibidores , Animais , Neoplasias Ósseas/tratamento farmacológico , Neoplasias Ósseas/metabolismo , Neoplasias Ósseas/secundário , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Curcumina/química , Modelos Animais de Doenças , Feminino , Humanos , Camundongos , Estrutura Molecular , Osteólise/metabolismo , Proteína Relacionada ao Hormônio Paratireóideo/metabolismo , Transdução de Sinais/fisiologia , Fator de Crescimento Transformador beta/fisiologia
20.
Front Psychol ; 14: 1198635, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37554138

RESUMO

Loss of work, furlough, and increased social isolation were prevalent for many working in the broad context of cultural and community engagement for health and wellbeing. This study set out to explore if and how regular online group interactions may foster social cohesion and provide support for these individuals during the critical time of the COVID-19 global pandemic. It was conducted in the context of the 'social cohesion chat' series led by a network called the Arts Play Health Community which was initiated in response to the pandemic as a way to bring those working in or connected to arts, play and health together during times of social isolation. Two qualitative focus groups with creative, participatory components were conducted with artists, researchers, evaluators, and arts/play managers (n = 11), and then analyzed using thematic analysis. Researcher ethnographic reflections and fieldnotes were also collected and analyzed. The authors engaged in reflexive online discussions to integrate and synthesize findings across different data. Four themes were constructed through the analysis procedure: (1) 'Building an online community as processes of communitas', spotlighting the importance of the non-hierarchical structure of the 'chats' particularly in relation to there being 'no end goal' to the online dialogues; (2) 'Individual and shared emotional experiences' that underpinned feelings of connection to others and the online space; (3) 'Psychosocial benefits' such as improving confidence and providing an opportunity to 'have a voice' in the community; and (4) 'The importance of facilitation', highlighting the opportunities the chats provided for participants to feel validated and valued as an active member of the community. The article concludes that constructing an inclusive and welcoming online community, where active participation is at the heart of regular social interactions can provide support for those working across arts and play for health and wellbeing. This was particularly important during the societal turbulence of the COVID-19 pandemic. It further concludes by noting the unique structure of these online dialogues as not being connected to institutions, with this playing a key role in allowing those in the community to 'be themselves' within it.

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