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1.
Nature ; 589(7842): 456-461, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33328639

RESUMO

Autophagy, a process of degradation that occurs via the lysosomal pathway, has an essential role in multiple aspects of immunity, including immune system development, regulation of innate and adaptive immune and inflammatory responses, selective degradation of intracellular microorganisms, and host protection against infectious diseases1,2. Autophagy is known to be induced by stimuli such as nutrient deprivation and suppression of mTOR, but little is known about how autophagosomal biogenesis is initiated in mammalian cells in response to viral infection. Here, using genome-wide short interfering RNA screens, we find that the endosomal protein sorting nexin 5 (SNX5)3,4 is essential for virus-induced, but not for basal, stress- or endosome-induced, autophagy. We show that SNX5 deletion increases cellular susceptibility to viral infection in vitro, and that Snx5 knockout in mice enhances lethality after infection with several human viruses. Mechanistically, SNX5 interacts with beclin 1 and ATG14-containing class III phosphatidylinositol-3-kinase (PI3KC3) complex 1 (PI3KC3-C1), increases the lipid kinase activity of purified PI3KC3-C1, and is required for endosomal generation of phosphatidylinositol-3-phosphate (PtdIns(3)P) and recruitment of the PtdIns(3)P-binding protein WIPI2 to virion-containing endosomes. These findings identify a context- and organelle-specific mechanism-SNX5-dependent PI3KC3-C1 activation at endosomes-for initiation of autophagy during viral infection.


Assuntos
Autofagia/imunologia , Nexinas de Classificação/metabolismo , Vírus/imunologia , Animais , Autofagia/genética , Proteínas Relacionadas à Autofagia/metabolismo , Proteína Beclina-1/metabolismo , Linhagem Celular , Classe III de Fosfatidilinositol 3-Quinases/metabolismo , Endossomos/metabolismo , Feminino , Humanos , Técnicas In Vitro , Masculino , Camundongos , Camundongos Endogâmicos C57BL , RNA Interferente Pequeno/genética , Nexinas de Classificação/deficiência , Nexinas de Classificação/genética , Proteínas de Transporte Vesicular/metabolismo
2.
Ann Neurol ; 94(6): 1168-1181, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37635687

RESUMO

OBJECTIVE: Migraine has been demonstrated to exhibit abnormal functional connectivity of large-scale brain networks, which is closely associated with its pathophysiology and has not yet been explored by edge functional connectivity. We used an edge-centric approach combined with motif analysis to evaluate higher-order communication patterns of brain networks in migraine. METHODS: We investigated edge-centric metrics in 108 interictal migraine patients and 71 healthy controls. We parcellated the brain into networks using independent component analysis. We applied edge graph construction, k-means clustering, community overlap detection, graph-theory-based evaluations, and clinical correlation analysis. We conducted motif analysis to explore the interactions among regions, and a classification model to test the specificity of edge-centric results. RESULTS: The normalized entropy of lateral thalamus was significantly increased in migraine, which was positively correlated with the baseline headache duration, and negatively correlated with headache duration reduction following preventive medications at 3-month follow-up. Network-wise entropy of the sensorimotor network was significantly elevated in migraine. The community similarity between lateral thalamus and postcentral gyrus was enhanced in migraine. Migraine patients showed overrepresented L-shape and diverse motifs, and underrepresented forked motifs with lateral thalamus serving as the reference node. Furthermore, migraine patients presented with overrepresented L-shape triads, where the postcentral gyrus shared different edges with the lateral thalamus. The classification model showed that entropy of the lateral thalamus had the highest discriminative power, with an area under the curve of 0.86. INTERPRETATION: Our findings indicated an abnormal higher-order thalamo-cortical communication pattern in migraine patients. The thalamo-cortical-somatosensory disturbance of concerted working may potentially lead to aberrant information flow and deficit pain processing of migraine. ANN NEUROL 2023;94:1168-1181.


Assuntos
Imageamento por Ressonância Magnética , Transtornos de Enxaqueca , Humanos , Imageamento por Ressonância Magnética/métodos , Transtornos de Enxaqueca/diagnóstico por imagem , Encéfalo , Tálamo/diagnóstico por imagem , Cefaleia
3.
Calcif Tissue Int ; 115(2): 101-116, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38833001

RESUMO

Primary failure of eruption (PFE) is a rare disorder that is characterized by the inability of a molar tooth/teeth to erupt to the occlusal plane or to normally react to orthodontic force. This condition is related to hereditary factors and has been extensively researched over many years. However, the etiological mechanisms of pathogenesis are still not fully understood. Evidence from studies on PFE cases has shown that PFE patients may carry parathyroid hormone 1 receptor (PTH1R) gene mutations, and genetic detection can be used to diagnose PFE at an early stage. PTH1R variants can lead to altered protein structure, impaired protein function, and abnormal biological activities of the cells, which may ultimately impact the behavior of teeth, as observed in PFE. Dental follicle cells play a critical role in tooth eruption and root development and are regulated by parathyroid hormone-related peptide (PTHrP)-PTH1R signaling in their differentiation and other activities. PTHrP-PTH1R signaling also regulates the activity of osteoblasts, osteoclasts and odontoclasts during tooth development and eruption. When interference occurs in the PTHrP-PTH1R signaling pathway, the normal function of dental follicles and bone remodeling are impaired. This review provides an overview of PTH1R variants and their correlation with PFE, and highlights that a disruption of PTHrP-PTH1R signaling impairs the normal process of tooth development and eruption, thus providing insight into the underlying mechanisms related to PTH1R and its role in driving PFE.


Assuntos
Receptor Tipo 1 de Hormônio Paratireóideo , Erupção Dentária , Receptor Tipo 1 de Hormônio Paratireóideo/genética , Receptor Tipo 1 de Hormônio Paratireóideo/metabolismo , Humanos , Erupção Dentária/genética , Erupção Dentária/fisiologia , Mutação , Dente não Erupcionado/genética , Animais , Doenças Dentárias
4.
Ann Hematol ; 103(3): 999-1005, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38285081

RESUMO

Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare hematologic malignancy that is highly aggressive with a poor prognosis. There is no standard treatment for BPDCN. Although conventional chemotherapies are usually sensitive in the initial therapy, relapse and drug resistance are inevitable within a short duration. Targeted therapies have enlightened new prospects for the treatment of BPDCN, especially for those in a frail state and intolerable to standard chemotherapies or hematopoietic stem cell transplantation. Here, we report an 82-year-old man diagnosed with cutaneous-limited BPDCN. Considering the old age and limited involvement of the tumor, we reduced the dosage of venetoclax. His skin lesions subsided significantly after 1 cycle of azacytidine (100 mg d1-7) combined with reduced doses of venetoclax (200 mg d1-14). The reduction in the dose of venetoclax avoided severe myelosuppression while achieving satisfactory outcomes. The patient received 2 cycles of therapy with no skin lesions re-occurred for 7 months before relapsing.


Assuntos
Compostos Bicíclicos Heterocíclicos com Pontes , Neoplasias Hematológicas , Transtornos Mieloproliferativos , Neoplasias Cutâneas , Sulfonamidas , Masculino , Humanos , Idoso de 80 Anos ou mais , Azacitidina/uso terapêutico , Células Dendríticas/patologia , Recidiva Local de Neoplasia/tratamento farmacológico , Neoplasias Cutâneas/patologia , Neoplasias Hematológicas/terapia , Transtornos Mieloproliferativos/patologia
5.
Am J Drug Alcohol Abuse ; : 1-13, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38917333

RESUMO

Background: Missouri's Overdose Field Report (ODFR) is a community-based reporting system which intends to capture overdoses which may not be otherwise recorded.Objectives: Describe the factors related to non-fatal overdoses reported to Missouri's ODFR.Methods: This study used a descriptive epidemiological approach to examine the demographics and circumstances of overdoses reported to the ODFR. We used binary logistic regression to evaluate factors associated with survival and ordinal logistic regression to evaluate factors associated with number of doses used. Factors were chosen based on their relevance to overdose education and survival, and naloxone distribution.Results: Between 2018 and 2022, 12,225 overdoses (67% male; 78% White) were reported through the ODFR, with a 96% (n = 11,225) survival rate. Overdose survival (ps < .02) was associated with younger age (OR = .58), no opioid and stimulant co-involvement (OR = .61), and private location (OR = .48). Intramuscular naloxone in particular was associated with a significantly higher odds of survival compared to nasal naloxone (OR = 2.11). An average of 1.6 doses of naloxone per incident were administered. Additional doses were associated (ps < .02) with being older (OR = .45), female (OR = .90), nasal naloxone (versus intravenous) (OR = .65), and the belief fentanyl was present (OR = 1.49).Conclusion: Our reporting form provides a comprehensive picture of the events surrounding reported overdoses, including factors associated with survival, how much naloxone was used, and the effects of respondents believing fentanyl was involved. Missouri's report can provide support for current naloxone dosing, contextualize refusing post-overdose transport, and can be used to improve overdose response by community and first responders.

6.
J Am Pharm Assoc (2003) ; : 102093, 2024 Apr 09.
Artigo em Inglês | MEDLINE | ID: mdl-38604474

RESUMO

BACKGROUND: Expanding access to naloxone through pharmacies is an important policy goal. Our objective was to characterize national county-level naloxone dispensing of chain versus independent pharmacies. METHODS: The primary exposure in our longitudinal analysis was the proportion of chain pharmacies in a county, identified through the US Department of Homeland Security 2010 Infrastructure Foundation-Level Data. We defined counties as having "higher proportion" of chain pharmacies if at least 50% of pharmacies were large national chains. The primary outcome was quarter-year (2016Q1-2019Q2) rate of pharmacy naloxone claims per 100,000 persons from Symphony Health at the county-level. We compared the naloxone dispensing rate between county types using two-sample t-tests. We estimated the association between county-level chain pharmacy proportion and rate of naloxone claims using a linear model with year-quarter fixed effects. RESULTS: Nearly one third of counties (n=946) were higher proportion. Higher proportion counties had a significantly higher rate of naloxone claims across the study period, in 4 of 6 urban-rural classifications, and in counties with and without naloxone access laws. The linear model confirmed that higher proportion counties had a significantly higher rate of naloxone claims, adjusting for urban/rural designation, income, population characteristics, opioid mortality rate, co-prescribing laws and naloxone access laws. CONCLUSION: In this national study, we found an association between naloxone dispensing rates and the county-level proportion of chain (versus independent) pharmacies. Incentivizing naloxone dispensing through educational, regulatory, or legal efforts may improve naloxone availability and dispensing rates - particularly in counties with proportionately high numbers of independent pharmacies.

7.
Clin Infect Dis ; 76(12): 2206-2208, 2023 06 16.
Artigo em Inglês | MEDLINE | ID: mdl-36815334

RESUMO

Data from several modeling studies demonstrate that large-scale increases in human immunodeficiency virus (HIV) testing across settings with a high burden of HIV may produce the largest incidence reductions to support the US Ending the HIV Epidemic (EHE) initiative's goal of reducing new HIV infections 90% by 2030. Despite US Centers for Disease Control and Prevention's recommendations for routine HIV screening within clinical settings and at least yearly screening for individuals most at risk of acquiring HIV, fewer than half of US adults report ever receiving an HIV test. Furthermore, total domestic funding for HIV prevention has remained unchanged between 2013 and 2019. The authors describe the evidence supporting the value of expanded HIV testing, identify challenges in implementation, and present recommendations to address these barriers through approaches at local and federal levels to reach EHE targets.


Assuntos
Epidemias , Infecções por HIV , Adulto , Humanos , HIV , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Teste de HIV , Epidemias/prevenção & controle , Programas de Rastreamento
8.
Harm Reduct J ; 20(1): 152, 2023 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-37853481

RESUMO

INTRODUCTION: We evaluated racial/ethnic differences in the receipt of naloxone distributed by opioid overdose prevention programs (OOPPs) in New York City (NYC). METHODS: We used naloxone recipient racial/ethnic data collected by OOPPs from April 2018 to March 2019. We aggregated quarterly neighborhood-specific rates of naloxone receipt and other covariates to 42 NYC neighborhoods. We used a multilevel negative binomial regression model to assess the relationship between neighborhood-specific naloxone receipt rates and race/ethnicity. Race/ethnicity was stratified into four mutually exclusive groups: Latino, non-Latino Black, non-Latino White, and non-Latino Other. We also conducted racial/ethnic-specific geospatial analyses to assess whether there was within-group geographic variation in naloxone receipt rates for each racial/ethnic group. RESULTS: Non-Latino Black residents had the highest median quarterly naloxone receipt rate of 41.8 per 100,000 residents, followed by Latino residents (22.0 per 100,000), non-Latino White (13.6 per 100,000) and non-Latino Other residents (13.3 per 100,000). In our multivariable analysis, compared with non-Latino White residents, non-Latino Black residents had a significantly higher receipt rate, and non-Latino Other residents had a significantly lower receipt rate. In the geospatial analyses, both Latino and non-Latino Black residents had the most within-group geographic variation in naloxone receipt rates compared to non-Latino White and Other residents. CONCLUSIONS: This study found significant racial/ethnic differences in naloxone receipt from NYC OOPPs. We observed substantial variation in naloxone receipt for non-Latino Black and Latino residents across neighborhoods, indicating relatively poorer access in some neighborhoods and opportunities for new approaches to address geographic and structural barriers in these locations.


Assuntos
Naloxona , Overdose de Opiáceos , Humanos , Negro ou Afro-Americano/estatística & dados numéricos , Etnicidade/estatística & dados numéricos , Naloxona/administração & dosagem , Naloxona/provisão & distribuição , Naloxona/uso terapêutico , Cidade de Nova Iorque/epidemiologia , Overdose de Opiáceos/epidemiologia , Overdose de Opiáceos/etnologia , Overdose de Opiáceos/prevenção & controle , Hispânico ou Latino/estatística & dados numéricos , Brancos/estatística & dados numéricos , Análise Espacial , Características de Residência/estatística & dados numéricos
9.
Evid Policy ; 19(4): 554-571, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38313044

RESUMO

Background: Despite significant progress in HIV treatment and prevention, the US remains far from its goal of 'Ending the HIV Epidemic' by 2030. Economic models using local data can synthesise the evidence to help policymakers allocate HIV resources efficiently, but persistent research-to-practice gaps remain. Little is known about how to facilitate the use of economic modelling data among local public health policymakers in real-world settings. Aims and objectives: To explore the dissemination of results from a locally-calibrated economic model for HIV prevention and treatment and identify the factors influencing potential uptake of the model for public health decision making at the local level. Methods: Four virtual focus groups with 26 local health department policymakers in Baltimore, Miami, Seattle, and New York City were held between July 2020 and May 2021. Qualitative content analysis of transcripts identified key themes around using the localised economic model in policy decisions. Results: Participants were interested in using local data in their decisions to allocate resources for HIV prevention/treatment. Six themes emerged: 1) importance of understanding local policy context; 2) health equity considerations; 3) using evidence to support current priorities; 4) difficulty of changing strategies, even incrementally; 5) bang for the incremental buck (efficiency) vs. previous impact; and 6) community values. Conclusion and relevance: To optimise acceptance and use of results from economic models, researchers should engage with local community members and public health decision makers early to understand budgetary and community priorities. Participants prioritised evidence that supports their existing strategies, considers budgets and funding streams, and improves health equity; however, real-world budget constraints and conflicting interests serve as barriers to implementing model recommendations and reaching national goals.

10.
Clin Infect Dis ; 72(11): e828-e834, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-33045723

RESUMO

BACKGROUND: Widespread viral and serological testing for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) may present a unique opportunity to also test for human immunodeficiency virus (HIV) infection. We estimated the potential impact of adding linked, opt-out HIV testing alongside SARS-CoV-2 testing on the HIV incidence and the cost-effectiveness of this strategy in 6 US cities. METHODS: Using a previously calibrated dynamic HIV transmission model, we constructed 3 sets of scenarios for each city: (1) sustained current levels of HIV-related treatment and prevention services (status quo); (2) temporary disruptions in health services and changes in sexual and injection risk behaviors at discrete levels between 0%-50%; and (3) linked HIV and SARS-CoV-2 testing offered to 10%-90% of the adult population in addition to Scenario 2. We estimated the cumulative number of HIV infections between 2020-2025 and the incremental cost-effectiveness ratios of linked HIV testing over 20 years. RESULTS: In the absence of linked, opt-out HIV testing, we estimated a total of a 16.5% decrease in HIV infections between 2020-2025 in the best-case scenario (50% reduction in risk behaviors and no service disruptions), and a 9.0% increase in the worst-case scenario (no behavioral change and 50% reduction in service access). We estimated that HIV testing (offered at 10%-90% levels) could avert a total of 576-7225 (1.6%-17.2%) new infections. The intervention would require an initial investment of $20.6M-$220.7M across cities; however, the intervention would ultimately result in savings in health-care costs in each city. CONCLUSIONS: A campaign in which HIV testing is linked with SARS-CoV-2 testing could substantially reduce the HIV incidence and reduce direct and indirect health care costs attributable to HIV.


Assuntos
COVID-19 , Epidemias , Infecções por HIV , Adulto , Teste para COVID-19 , Cidades , Análise Custo-Benefício , HIV , Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , Humanos , SARS-CoV-2
11.
Analyst ; 146(8): 2609-2616, 2021 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-33720222

RESUMO

A Metal-Organic Framework (MOFs) with large surface area, exposed active site, excellent catalytic performance and high chemical stability has been used as an artificial enzyme and designed for nonenzymatic electrochemical sensors. Here, a strategy of using an enhanced electrochemical sensing platform for the detection of nitic oxide (NO) and hydrogen peroxide (H2O2) was designed via a nano-metalloporphyrinic metal-organic framework (NporMOF(Fe)) as an electrode material. By taking advantage of the small size, high surface area and exposed Fe active site, the obtained NporMOF(Fe) displays excellent electrocatalytic activity toward NO and H2O2. The NporMOF(Fe) modified electrode shows high sensing ability toward the in situ generated NO in NO2- containing phosphate buffer (PB) solution with a wide linear detection range of 5 µM to 200 µM and a very low detection limit of 1.3 µM. Moreover, NporMOF(Fe) exhibits high electrocatalytic activity toward the reduction of H2O2 and the practical detection of H2O2 released from HeLa cells. Furthermore, the NporMOF(Fe) modified electrode shows excellent selectivity toward the detection of NO and H2O2 in the presence of other physiologically important analytes. This method shows excellent biosensing performance, implying the universal applicability of MOFs-based artificial nanozymes for biosensors and the potential application for third generation biosensors.


Assuntos
Técnicas Biossensoriais , Estruturas Metalorgânicas , Técnicas Eletroquímicas , Células HeLa , Humanos , Peróxido de Hidrogênio , Óxido Nítrico
12.
Health Econ ; 30(5): 1222-1238, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33711186

RESUMO

Opioid agonist treatment (OAT) is the evidence-based standard of care for people with opioid use disorder. In British Columbia, Canada, only social assistance registrants received full coverage for OAT prior to the introduction of the Pharmacare Plan G coverage expansion on February 1st, 2017. We aimed to determine the effect of the coverage expansion on OAT initiation, re-initiation, and retention. Using linked population-level data, we executed a difference-in-differences analysis to compare outcomes of individuals eligible for the additional coverage and social assistance registrants already receiving the most generous coverage for OAT prior to the policy change, adjusting for individual and prescriber characteristics. We found Plan G coverage expansion significantly increased OAT retention. Specifically, coverage expansion decreased the number of OAT episode discontinuations by 12.8% (95% CI: 8.4%, 17.2%).


Assuntos
Analgésicos Opioides , Transtornos Relacionados ao Uso de Opioides , Analgésicos Opioides/uso terapêutico , Colúmbia Britânica , Etnicidade , Humanos , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico
13.
J Infect Dis ; 222(Suppl 5): S301-S311, 2020 09 02.
Artigo em Inglês | MEDLINE | ID: mdl-32877548

RESUMO

BACKGROUND: Persons who inject drugs (PWID) are at a disproportionately high risk of HIV infection. We aimed to determine the highest-valued combination implementation strategies to reduce the burden of HIV among PWID in 6 US cities. METHODS: Using a dynamic HIV transmission model calibrated for Atlanta, Baltimore, Los Angeles, Miami, New York City, and Seattle, we assessed the value of implementing combinations of evidence-based interventions at optimistic (drawn from best available evidence) or ideal (90% coverage) scale-up. We estimated reduction in HIV incidence among PWID, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios (ICERs) for each city (10-year implementation; 20-year horizon; 2018 $ US). RESULTS: Combinations that maximized health benefits contained between 6 (Atlanta and Seattle) and 12 (Miami) interventions with ICER values ranging from $94 069/QALY in Los Angeles to $146 256/QALY in Miami. These strategies reduced HIV incidence by 8.1% (credible interval [CI], 2.8%-13.2%) in Seattle and 54.4% (CI, 37.6%-73.9%) in Miami. Incidence reduction reached 16.1%-75.5% at ideal scale. CONCLUSIONS: Evidence-based interventions targeted to PWID can deliver considerable value; however, ending the HIV epidemic among PWID will require innovative implementation strategies and supporting programs to reduce social and structural barriers to care.


Assuntos
Epidemias/prevenção & controle , Infecções por HIV/epidemiologia , Medicina Preventiva/economia , Anos de Vida Ajustados por Qualidade de Vida , Abuso de Substâncias por Via Intravenosa/reabilitação , Adolescente , Adulto , Cidades/epidemiologia , Efeitos Psicossociais da Doença , Análise Custo-Benefício , Usuários de Drogas/estatística & dados numéricos , Epidemias/economia , Epidemias/estatística & dados numéricos , Feminino , Infecções por HIV/economia , Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Teste de HIV/economia , Custos de Cuidados de Saúde , Implementação de Plano de Saúde/economia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Modelos Econômicos , Tratamento de Substituição de Opiáceos/economia , Tratamento de Substituição de Opiáceos/métodos , Profilaxia Pré-Exposição/economia , Profilaxia Pré-Exposição/organização & administração , Prevalência , Medicina Preventiva/organização & administração , Abuso de Substâncias por Via Intravenosa/complicações , Abuso de Substâncias por Via Intravenosa/economia , Estados Unidos/epidemiologia , Adulto Jovem
14.
Clin Infect Dis ; 71(11): 2968-2971, 2020 12 31.
Artigo em Inglês | MEDLINE | ID: mdl-32424416

RESUMO

We estimated human immunodeficiency virus incidence and incidence rate ratios (IRRs) for black and Hispanic vs white populations in 6 cities in the United States (2020-2030). Large reductions in incidence are possible, but without elimination of disparities in healthcare access, we found that wide disparities persisted for black compared with white populations in particular (lowest IRR, 1.69 [95% credible interval, 1.19-2.30]).


Assuntos
Epidemias , Grupos Raciais , Cidades , Etnicidade , HIV , Disparidades nos Níveis de Saúde , Disparidades em Assistência à Saúde , Hispânico ou Latino , Humanos , Estados Unidos/epidemiologia
15.
Value Health ; 23(12): 1534-1542, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-33248508

RESUMO

OBJECTIVES: The ambitious goals of the US Ending the HIV Epidemic initiative will require a targeted, context-specific public health response. Model-based economic evaluation provides useful guidance for decision making while characterizing decision uncertainty. We aim to quantify the value of eliminating uncertainty about different parameters in selecting combination implementation strategies to reduce the public health burden of HIV/AIDS in 6 US cities and identify future data collection priorities. METHODS: We used a dynamic compartmental HIV transmission model developed for 6 US cities to evaluate the cost-effectiveness of a range of combination implementation strategies. Using a metamodeling approach with nonparametric and deep learning methods, we calculated the expected value of perfect information, representing the maximum value of further research to eliminate decision uncertainty, and the expected value of partial perfect information for key groups of parameters that would be collected together in practice. RESULTS: The population expected value of perfect information ranged from $59 683 (Miami) to $54 108 679 (Los Angeles). The rank ordering of expected value of partial perfect information on key groups of parameters were largely consistent across cities and highest for parameters pertaining to HIV risk behaviors, probability of HIV transmission, health service engagement, HIV-related mortality, health utility weights, and healthcare costs. Los Angeles was an exception, where parameters on retention in pre-exposure prophylaxis ranked highest in contributing to decision uncertainty. CONCLUSIONS: Funding additional data collection on HIV/AIDS may be warranted in Baltimore, Los Angeles, and New York City. Value of information analysis should be embedded into decision-making processes on funding future research and public health intervention.


Assuntos
Coleta de Dados/métodos , Tomada de Decisões Gerenciais , Erradicação de Doenças/métodos , Infecções por HIV/prevenção & controle , Adolescente , Adulto , Análise Custo-Benefício , Coleta de Dados/economia , Erradicação de Doenças/economia , Erradicação de Doenças/organização & administração , Feminino , Infecções por HIV/economia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Incerteza , Estados Unidos/epidemiologia , População Urbana/estatística & dados numéricos , Adulto Jovem
16.
J Cardiovasc Nurs ; 35(1): 45-53, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31373957

RESUMO

BACKGROUND: The hypertension control rate in China is much lower than that in developed countries. Self-management among elderly patients with hypertension can improve blood pressure control; thus, it is necessary to explore its association with individual and social environmental factors. OBJECTIVE: Our objective was to investigate self-management among elderly patients with hypertension in China and its association with individual and social environmental factors based on the social ecological model. METHODS: A total of 301 elderly patients with hypertension were recruited to do a questionnaire survey based on the social ecological model, which included the General Demographic Information Questionnaire, Hypertension Patients Self-Management Behavior Rating Scale, World Health Organization Well-Being Index, Family APGAR Index, and Social Support Rating Scale. RESULTS: The lowest level of self-management behaviors was in exercise management, and the highest was in medication management. The results of multiple linear regression analysis showed that well-being, family function, sex, education level, and age were pivotal individual and social environmental factors influencing self-management behaviors among elderly patients with hypertension. CONCLUSIONS: There is a need to develop and test interventions that improve self-management in elderly patients with hypertension. Specifically, individualized interventions to promote exercise among elderly persons with hypertension who are single and living alone are needed. Male patients with a lower education level, poor well-being, poor family function, and the lowest self-management levels are a key population to target.


Assuntos
Comportamentos Relacionados com a Saúde , Letramento em Saúde/estatística & dados numéricos , Hipertensão/psicologia , Hipertensão/terapia , Autogestão/estatística & dados numéricos , Fatores Etários , Idoso , China/epidemiologia , Feminino , Promoção da Saúde/organização & administração , Humanos , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Autocuidado/psicologia , Autogestão/psicologia , Apoio Social
17.
Clin Infect Dis ; 69(12): 2195-2198, 2019 11 27.
Artigo em Inglês | MEDLINE | ID: mdl-31609446

RESUMO

We estimated 10-year (2020-2030) trajectories for human immunodeficiency virus incidence in 6 US cities. Estimated incidence will only decrease in 2 of 6 cities, with the overall population-weighted incidence decreasing 3.1% (95% credible interval [CrI], -1.0% to 8.5%) by 2025, and 4.3% (95% CrI, -2.6% to 12.7%) by 2030 across cities. Targeted, context-specific combination implementation strategies will be necessary to meet the newly established national targets.


Assuntos
Infecções por HIV/epidemiologia , Infecções por HIV/virologia , HIV , Síndrome da Imunodeficiência Adquirida/epidemiologia , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Síndrome da Imunodeficiência Adquirida/virologia , Cidades , Infecções por HIV/prevenção & controle , Humanos , Incidência , Vigilância da População , Estados Unidos/epidemiologia
19.
BMC Health Serv Res ; 19(1): 512, 2019 Jul 23.
Artigo em Inglês | MEDLINE | ID: mdl-31337396

RESUMO

BACKGROUND: The synthetic control method (SCM) is a useful tool in providing unbiased analysis on the policy effect in real-world health policy evaluations. Through controlling for a few confounding factors, we aim to apply SCM in analyzing the impact of the pricing reform on medical expenditure structure in Jiangsu Province, China. METHODS: We constructed a synthetic control for Zhenjiang, a city where the reform was piloted in Jiangsu, by selecting weights on those potential control units to define a linear combination of the control outcomes to replicate the counterfactual as if the intervention is in absence. The policy effect was measured by the differences in the percentage of drug expenditure among average outpatient and inpatient care cost per visit in the post-policy period between Zhenjiang and its synthetic control. We also examined the significance of the estimated results by performing placebo tests, and cross-validated the results with a difference-in-differences analysis. RESULTS: The medical pricing reform was found to be effective in reducing the drug expenditure proportions in both outpatient and inpatient care by an estimated mean level of 7.7 and 3.2% (or 16.3 and 9.2% relative decrease to their 2012 levels) respectively. This reform effect was estimated to be significant in the placebo tests and was further confirmed by a cross-validation. CONCLUSION: We conclude that the pricing reform in public hospitals has significantly reduced drug expenditure incurred in both outpatient and inpatient care. This study also highlights the applicability of SCM method as an effective tool for health policy evaluation using publicly available data in the context of Chinese healthcare system.


Assuntos
Comércio , Reforma dos Serviços de Saúde/economia , Gastos em Saúde/tendências , Política de Saúde , Hospitais Públicos , China , Atenção à Saúde , Hospitalização , Humanos , Pessoa de Meia-Idade , Pacientes Ambulatoriais
20.
Clin Infect Dis ; 66(5): 765-777, 2018 02 10.
Artigo em Inglês | MEDLINE | ID: mdl-29028964

RESUMO

Background: Recognition of the secondary preventive benefits of antiretroviral therapy (ART) has mobilized global efforts to "seek, test, treat, and retain" people living with human immunodeficiency virus [HIV]/AIDS (PLHIV) in HIV care. We aimed to determine the cost-effectiveness of a set of HIV testing and treatment engagement interventions initiated in British Columbia, Canada, in 2011-2013. Methods: Using a previously validated dynamic HIV transmission model, linked individual-level health administrative data for PLHIV, and aggregate-level HIV testing data, we estimated the cost-effectiveness of primary care testing (hospital, emergency department [ED], outpatient), ART initiation, and ART retention initiatives vs a counterfactual scenario that approximated the status quo. HIV incidence, mortality, costs (in 2015$CDN), quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios were estimated. Analyses were executed over 5- to 25-year time horizons from a government-payer perspective. Results: ED testing was the best value at $30216 per QALY gained and had the greatest impact on incidence and mortality among PLHIV, while ART initiation provided the greatest QALY gains. The ART retention initiative was not cost-effective. Delivered in combination at the observed scale and sustained throughout the study period, we estimated a 12.8% reduction in cumulative HIV incidence and a 4.7% reduction in deaths among PLHIV at $55258 per QALY gained. Results were most sensitive to uncertainty in the number of undiagnosed PLHIV. Conclusions: HIV testing and ART initiation interventions were cost-effective, while the ART retention intervention was not. Developing strategies to reengage PLHIV lost to care is a priority moving forward.


Assuntos
Fármacos Anti-HIV/economia , Fármacos Anti-HIV/uso terapêutico , Análise Custo-Benefício , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , HIV-1 , Adulto , Terapia Antirretroviral de Alta Atividade/economia , Colúmbia Britânica/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Humanos , Masculino , Modelos Econômicos , Reprodutibilidade dos Testes , Fatores de Tempo
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