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1.
Nature ; 617(7961): 555-563, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36996873

RESUMO

An outbreak of acute hepatitis of unknown aetiology in children was reported in Scotland1 in April 2022 and has now been identified in 35 countries2. Several recent studies have suggested an association with human adenovirus with this outbreak, a virus not commonly associated with hepatitis. Here we report a detailed case-control investigation and find an association between adeno-associated virus 2 (AAV2) infection and host genetics in disease susceptibility. Using next-generation sequencing, PCR with reverse transcription, serology and in situ hybridization, we detected recent infection with AAV2 in plasma and liver samples in 26 out of 32 (81%) cases of hepatitis compared with 5 out of 74 (7%) of samples from unaffected individuals. Furthermore, AAV2 was detected within ballooned hepatocytes alongside a prominent T cell infiltrate in liver biopsy samples. In keeping with a CD4+ T-cell-mediated immune pathology, the human leukocyte antigen (HLA) class II HLA-DRB1*04:01 allele was identified in 25 out of 27 cases (93%) compared with a background frequency of 10 out of 64 (16%; P = 5.49 × 10-12). In summary, we report an outbreak of acute paediatric hepatitis associated with AAV2 infection (most likely acquired as a co-infection with human adenovirus that is usually required as a 'helper virus' to support AAV2 replication) and disease susceptibility related to HLA class II status.


Assuntos
Infecções por Adenovirus Humanos , Dependovirus , Hepatite , Criança , Humanos , Doença Aguda/epidemiologia , Infecções por Adenovirus Humanos/epidemiologia , Infecções por Adenovirus Humanos/genética , Infecções por Adenovirus Humanos/virologia , Alelos , Estudos de Casos e Controles , Linfócitos T CD4-Positivos/imunologia , Coinfecção/epidemiologia , Coinfecção/virologia , Dependovirus/isolamento & purificação , Predisposição Genética para Doença , Vírus Auxiliares/isolamento & purificação , Hepatite/epidemiologia , Hepatite/genética , Hepatite/virologia , Hepatócitos/virologia , Cadeias HLA-DRB1/genética , Cadeias HLA-DRB1/imunologia , Fígado/virologia
2.
Prev Med ; 167: 107423, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36641128

RESUMO

The legal and medical rights of lesbian, gay, bisexual, transgender, queer (LGBTQ+) and other gender and sexual minority (GSM) youth are under attack in the United States. Approximately 160 anti-LGBTQ+ bills were proposed across the United States during the 2021 legislative session, with 70% of states considering at least one anti-LGBTQ+ bill. Over one hundred of the proposed bills specifically target transgender youth and have already resulted in the prohibition of nearly 85,000 13-17-year-old trans youth from participating in sports as their affirmed gender. Such legislation directly impacts the health of youth including in Arkansas and Tennessee which passed bills that limit youth access to evidenced-based, gender-affirming care; in February 2022, the governor of Texas directed state agencies to investigate gender-affirming care for trans youths as 'child abuse'. Despite these anti-LGBTQ+ proposed and passed laws, 22 states have full non-discrimination protections for LQBTQ+ individuals, and 24 states have laws that protect LGBTQ+ students from bullying on the basis of their sexual orientation and/or gender identity. Civil rights policies have the power to grant protections to LGBTQ+ youth under the law. Conversely, the rollback of those liberties may lead to irreparable harm and preventable deaths. The consequences of anti-LGBTQ+ legislation can additionally deleteriously affect local and state economies as companies and organizations move to supportive communities. Clinicians can, and should, play an important role to engage stakeholders and advocate for LGBTQ+ inclusive policies at the institutional, local, state, and national policy level.


Assuntos
Homossexualidade Feminina , Minorias Sexuais e de Gênero , Pessoas Transgênero , Adolescente , Feminino , Humanos , Masculino , Identidade de Gênero , Políticas , Comportamento Sexual , Estados Unidos
3.
J Pediatr ; 234: 115-122.e1, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33395566

RESUMO

OBJECTIVE: To determine the associations of social and physical neighborhood conditions with recurrent emergency department (ED) utilization by children in the US. STUDY DESIGN: This cross-sectional study was conducted with the National Survey of Children's Health from 2016 to 2018 to determine the associations of neighborhood characteristics of cohesion, safety, amenities, and detractors with the proportions of children aged 1-17 years with recurrent ED utilization, defined as 2 or more ED visits during the past 12 months. A multivariable regression model was used to determine the independent association of each neighborhood characteristic with recurrent ED utilization controlling for individual-level characteristics. RESULTS: In this study of 98 711 children weighted to a population of 70 million nationally, children had significantly greater rates of recurrent ED utilization if they lived in neighborhoods that were not cohesive, were not safe, or had detractors present (all P < .001). With adjustment for individual-level covariates and the other neighborhood characteristics, only neighborhood detractors were independently associated with recurrent ED utilization (1 detractor: aOR 1.32, 95% CI 1.03-1.68; 2 or 3 detractors: aOR 1.37, 95% CI 1.04-1.81). CONCLUSIONS: Among neighborhood characteristics, the presence of physical detractors such as rundown housing and vandalism was most strongly associated with recurrent ED utilization by children. Negative attributes of the built environment may be a potential target for neighborhood-level, place-based interventions to alleviate disparities in child healthcare utilization.


Assuntos
Saúde da Criança , Características de Residência , Criança , Estudos Transversais , Serviço Hospitalar de Emergência , Habitação , Humanos , Estados Unidos
4.
Prev Med ; 149: 106621, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33992655

RESUMO

Emergency departments frequently serve marginalized populations. Spanish-speaking families who come to the ED often have high rates of unmet social needs. Our study investigated how to efficiently screen families for unmet social needs in an emergency department. Participants who screened positive for needs were referred to geographically convenient, community-based resources. It became clear that barriers related to language discordance existed for recruiting Spanish-speaking participants that were not present for English-speaking participants, which we believe exacerbate existing inequities and must be addressed. We advocate for the extension of the Affordable Care Act Section 1557 to mandate expanded teams of interpreters to meet both clinical and research demands in conjunction with purposeful hiring of multilingual research assistants, along with concerted effort to standardize the certification process for multilingual staff. Prohibitive costs for the translation of written research materials need to be decreased and journals should evaluate submitted research with a language equity lens, which will help the field of clinical research prioritize inclusivity and diversity in research populations. Currently, systemic barriers complicate enrolling research participants who speak a language other than English, and we believe the proposed changes are feasible solutions to overcome these obstacles. Equitable representation in research is a critical part of addressing the legacy of oppression and exclusion within healthcare systems. Language equity is not a panacea for the distrust and systemic racism patients of color experience within our healthcare system that often prevent participation in clinical research, but it is a key first step.


Assuntos
Idioma , Multilinguismo , Barreiras de Comunicação , Humanos , Patient Protection and Affordable Care Act , Assistência Centrada no Paciente , Estados Unidos
5.
J Trauma Stress ; 34(4): 808-818, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33524199

RESUMO

High treatment dropout rates reported in recent literature have brought into question the effectiveness of trauma-focused posttraumatic stress disorder (PTSD) treatments among military populations. The aim of the current systematic review was to evaluate PTSD treatment dropout rates among military populations by treatment type and other study-level variables. We searched four databases as well as gray literature for randomized controlled trials that evaluated evidence-based PTSD treatments in samples of active duty personnel and/or veterans. In total, 26 studies were included in this review, with a total of 2,984 participants. We analyzed dropout rates across treatment types using multivariate meta-analysis. Across all forms of treatment, the aggregated dropout rate was 24.2%. Dropout percentages based on treatment type were 27.1% for trauma-focused treatments, 16.1% for non-trauma-focused treatments, and 6.8% for waitlist groups. We found substantial heterogeneity between studies that was not explained by military status or other study-level covariates. Summary risk ratios (RRs) comparing relative dropout between treatment groups indicated that trauma-focused treatment groups had a higher risk of dropout compared to non-trauma-focused treatments, RR = 1.60. The statistical heterogeneity of within-treatment dropout risk ratios was negligible. Dropout rates among military patients receiving trauma-focused therapies were only slightly higher than those reported in the literature among civilian populations and were not explained by study-level covariates.


Assuntos
Militares , Transtornos de Estresse Pós-Traumáticos , Veteranos , Humanos , Pacientes Desistentes do Tratamento , Psicoterapia , Transtornos de Estresse Pós-Traumáticos/terapia
6.
J Infect Dis ; 222(Suppl 5): S410-S419, 2020 09 02.
Artigo em Inglês | MEDLINE | ID: mdl-32877546

RESUMO

An outbreak of human immunodeficiency virus (HIV) among people who inject drugs in Glasgow, Scotland started in 2014. We describe 156 cases over 5 years and evaluate the impact of clinical interventions using virological and phylogenetic analysis. We established (1) HIV services within homeless health facilities, including outreach nurses, and (2) antiretroviral therapy (ART) via community pharmacies. Implementation of the new model reduced time to ART initiation from 264 to 23 days and increased community viral load suppression rates to 86%. Phylogenetic analysis demonstrated that 2019 diagnoses were concentrated within a single network. Traditional HIV care models require adaptation for this highly complex population.


Assuntos
Serviços de Saúde Comunitária/organização & administração , Surtos de Doenças/prevenção & controle , Infecções por HIV/epidemiologia , Modelos Organizacionais , Abuso de Substâncias por Via Intravenosa/complicações , Antirreumáticos/uso terapêutico , Serviços de Saúde Comunitária/métodos , Busca de Comunicante/métodos , Feminino , HIV/genética , HIV/isolamento & purificação , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Teste de HIV/métodos , Pessoas Mal Alojadas , Humanos , Masculino , Adesão à Medicação , Enfermeiras e Enfermeiros/organização & administração , Farmácias/organização & administração , Filogenia , Escócia/epidemiologia , Abuso de Substâncias por Via Intravenosa/terapia , Carga Viral
7.
Environ Res ; 186: 109442, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32302873

RESUMO

Grape pomace (GP) management has been a challenge worldwide. We have previously demonstrated a biorefinery process to recover oil and polyphenols, and produce biofuels from GP sequentially, although over 50% of GP solid waste remains post-processing. To approach zero solid waste during GP processing, herein a pyrolysis process was designed for converting GP and its secondary processing wastes to biochars, which were then evaluated for lead (Pb) adsorption from water. GP lignin pyrolyzed at 700 °C (GPL2700 biochar) with specific surface area of 485 m2/g showed the highest Pb adsorption capacity, and achieved 66.5% of Pb removal from an initially high concentration of 300 mg/L within 30 min. At low initial Pb concentrations (50-3000 µg/L), GPL2700 biochar could reduce Pb concentrations to 0.208-77.2 µg/L. In addition, experimental and modeling results revealed that both physisorption and chemisorption mechanisms were involved in the adsorption process of GPL2700 biochar.


Assuntos
Vitis , Água , Adsorção , Carvão Vegetal , Chumbo , Águas Residuárias
8.
Appetite ; 144: 104442, 2020 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-31494153

RESUMO

Bitterness and astringency (dryness) are characteristic sensory attributes of flavanol-rich foods. The degree of polymerization (DP) of flavanols influences their bitter and astringent sensations. Smaller DP compounds can enter the papillae on the tongue, eliciting a bitter response. Larger DP compounds are sterically inhibited from entering papillae and instead interact with oral proteins, cause precipitation, and elicit astringent sensations. Previous research has indicated that bitterness preference is related to health status, density of fungiform papillae on the tongue, and sensitivity to bitter compounds such as 6-n-propyl-thiouracil (PROP). The purpose of this study was to examine trends in liking, bitterness intensity, and astringency intensity of wine-like products with flavanols of different DP using a consumer sensory panel. Participants (n = 102) were segmented by phenotypes: body fat percentage (BF%), body mass index (BMI), PROP sensitivity, and stated bitter food preference. Differences in wine liking, perceived bitterness intensity, and astringency intensity were observed between three model wine samples of varying flavanol mean degrees of polymerization (mDP, i.e. the average size (polymer length) of flavanol compounds in a mixture). Specifically, with increased mDP, overall liking and bitterness liking decreased, with concurrent increased perception of bitterness and astringency intensity. Greater differences between phenotypes were observed when participants were segmented by BF% and BMI classification, than when segmented by PROP sensitivity classification. Reduced ability to detect differences in bitterness and astringency were noted in participants of higher weight status. Overall, these data suggest that weight status in adults is a greater predictor of liking of flavanol-rich foods than bitterness sensitivity (as determined by PROP classification), and that reduced perception of bitterness and astringency associated with weight gain may impact selection and preference for these foods.


Assuntos
Composição Corporal/fisiologia , Preferências Alimentares/efeitos dos fármacos , Polifenóis/administração & dosagem , Paladar/efeitos dos fármacos , Vinho/análise , Tecido Adiposo , Adulto , Índice de Massa Corporal , Peso Corporal/fisiologia , Feminino , Preferências Alimentares/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Polimerização , Propiltiouracila/administração & dosagem , Paladar/fisiologia , Papilas Gustativas/efeitos dos fármacos , Limiar Gustativo/efeitos dos fármacos , Adulto Jovem
9.
Med Care ; 57 Suppl 10 Suppl 3: S265-S271, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31517798

RESUMO

BACKGROUND: To promote evidence-based health care, clinical providers and decision makers rely on scientific evidence to inform best practices. Evidence synthesis (ES) is a key component of this process that serves to inform health care decisions by integrating and contextualizing research findings across studies. OBJECTIVE: This paper describes the process of establishing an ES capability in the Military Health System dedicated to psychological health topics. RESEARCH DESIGNS: The goal of establishing the current ES capability was to facilitate evidence-based decision-making among clinicians, clinic managers, research funders, and policymakers, through the production and dissemination of trustworthy ES reports. We describe how we developed this capability, provide an overview of the types of evidence syntheses products we use to respond to different stakeholders, and detail the procedures established for selecting and prioritizing synthesis topics. RESULTS: We report on the productivity, acceptability, and impact of our efforts. Our reports were used by a variety of stakeholders and working groups, briefed to major committees, included in official reports and policies, and cited in clinical practice guidelines and the peer-reviewed literature. CONCLUSIONS: Our experiences thus far suggest that the current ES capability offers a needed service within our health system. Our framework may help inform other agencies interested in developing or sponsoring a similar capability.


Assuntos
Tomada de Decisões , Medicina Baseada em Evidências , Sistema de Aprendizagem em Saúde , Transtornos Mentais , Saúde Militar , Pesquisa sobre Serviços de Saúde , Humanos , Pesquisa Qualitativa , Revisões Sistemáticas como Assunto
10.
Telemed J E Health ; 25(9): 859-861, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30379634

RESUMO

Purpose: Measurement of simulator-related side effects (SSEs) is an integral component of competent and ethical use of virtual reality exposure (VRE), but common SSEs may overlap with symptoms of anxiety. Limited research exists about the frequency of SSEs during VRE treatment for post-traumatic stress disorder (PTSD) and no research compares self-reported SSEs for those undergoing VRE with those participating in exposure therapy without virtual reality. This study compared the SSEs of active duty soldiers with PTSD randomly assigned to exposure therapy through traditional prolonged exposure or VRE.Methodology: A total of 108 soldiers participated in up to 10 sessions of exposure therapy. Of those, 93 provided data on simulator sickness both before and after initiation of imaginal exposure. Approximately half (n = 49) used the Virtual Iraq/Afghanistan system to support engagement with their trauma memory. Soldiers completed a 4-item, self-reported measure of SSE after each session.Results: Controlling for age, gender, baseline anxiety symptoms, and SSE symptom counts at the first two sessions of therapy (before initiating imaginal exposure), there was no statistically significant difference between the treatment groups in SSEs at the beginning of imaginal exposure or over the course of treatment.Conclusions: This finding suggests that caution should be exercised in the interpretation of SSE measurements during the use of VRE for PTSD. Virtual reality did not account for any increase in self-reported SSE. It is possible that anxiety accounts for a meaningful proportion of SSE reports during VRE.


Assuntos
Terapia Implosiva/métodos , Militares/psicologia , Medidas de Resultados Relatados pelo Paciente , Transtornos de Estresse Pós-Traumáticos/terapia , Veteranos/psicologia , Realidade Virtual , Adulto , Feminino , Humanos , Guerra do Iraque 2003-2011 , Masculino , Medição de Risco , Transtornos de Estresse Pós-Traumáticos/diagnóstico , Resultado do Tratamento , Estados Unidos
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