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1.
Ann Fam Med ; 22(2): 121-129, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38527821

RESUMO

PURPOSE: Although a large proportion of males in the United States become sexually active during high school, condom use is decreasing and contributing to negative sexual health outcomes. Fathers are influential in promoting adolescent male sexual health; however, factors that shape fathers' decisions about when to discuss condom use with their sons remain understudied. We examined paternal perceptions of adolescent males' readiness for sex relative to fathers providing guidance for condom use in Latino and Black families. METHODS: We recruited 191 Latino and Black males aged 15-19 years and their fathers in the South Bronx, New York City. Dyads completed surveys, and a subset of fathers participated in audio-recorded sessions with a father coach, which included conversations about adolescent male condom use. A sequential explanatory mixed methods design identified adolescent male developmental predictors for paternal guidance for condom use and explored how fathers perceive their sons' readiness for sex. RESULTS: The quantitative findings indicate that paternal perception of their sons' readiness for sex is an important predictor of providing guidance for condom use, and that fathers consider other factors (beyond age and perceived sexual activity) in understanding their sons' developmental readiness for sex. The qualitative findings provide insights into these additional factors, which should be considered when engaging fathers in primary care around issues of adolescent male condom use. CONCLUSIONS: Fathers' perception of their sons' readiness for sex is a predictor of providing condom guidance. We provide practical suggestions for engaging fathers in primary care to promote correct and consistent condom use by adolescent males.


Assuntos
Preservativos , Núcleo Familiar , Adolescente , Humanos , Masculino , Negro ou Afro-Americano , Relações Pai-Filho , Pai , Hispânico ou Latino , Comportamento Sexual , Estados Unidos , Adulto Jovem , Cidade de Nova Iorque
2.
Prev Sci ; 2024 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-38607535

RESUMO

There is consensus about the importance of developing a strong cadre of effective multilevel interventions to eliminate the impacts of unjust social processes, such as structural racism and other harmful social determinants of health (SDOH), on health inequities in the USA. However, the available cadre of rigorously evaluated evidence-based interventions for SDOH mitigation remains underdeveloped relative to the magnitude of historic and current health inequities. The proposed manuscript addresses this gap in two ways: first, by introducing a heuristic framework to inform decisions in multilevel intervention development, study design, and selection of analytic methods and, second, by providing a roadmap for future applications of the framework in multilevel intervention research through an exemplar application using the ongoing NIH-funded evaluation study of the Nurse-Community-Family Partnership (NCFP) intervention. NCFP leverages individual, family, institutional, and system factors to shape COVID-19 mitigation outcomes at the individual and household levels. NCFP takes an approach informed by the heuristic framework to addressing and mitigating unjust social processes and other harmful SDOH. We discuss the application of a two-arm parallel explanatory group randomized trial to evaluate the efficacy of NCFP in improving the primary (COVID-19 testing uptake) and secondary (adoption of COVID-19 control measures, COVID-19 vaccine uptake, mutual aid capacity, etc.) outcomes at the individual and household levels. The analysis approach relies on random-intercept models, and we calculate the variance partitioning coefficient to estimate the extent to which household- and individual-level variables contribute to the outcome, allowing examination of NCFP effects at multiple levels.

3.
Milbank Q ; 101(2): 486-526, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37062954

RESUMO

Policy Points A large body of scientific work examines the mechanisms through which social determinants of health (SDOH) shape health inequities. However, the nuances described in the literature are infrequently reflected in the applied frameworks that inform health policy and programming. We synthesize extant SDOH research into a heuristic framework that provides policymakers, practitioners, and researchers with a customizable template for conceptualizing and operationalizing key mechanisms that represent intervention opportunities for mitigating the impact of harmful SDOH. In light of scarce existing SDOH mitigation strategies, the framework addresses an important research-to-practice translation gap and missed opportunity for advancing health equity. CONTEXT: The reduction of health inequities is a broad and interdisciplinary endeavor with implications for policy, research, and practice. Health inequities are most often understood as associated with the social determinants of health (SDOH). However, policy and programmatic frameworks for mitigation often rely on broad SDOH domains, without sufficient attention to the operating mechanisms, and effective SDOH mitigation strategies remain scarce. To expand the cadre of effective SDOH mitigation strategies, a practical, heuristic framework for policymakers, practitioners, and researchers is needed that serves as a roadmap for conceptualizing and targeting the key mechanisms of SDOH influence. METHODS: We conduct a critical review of the extant conceptual and empirical SDOH literature to identify unifying principles of SDOH mechanisms and to synthesize an integrated framework for conceptualizing such mechanisms. FINDINGS: We highlight eight unifying principles of SDOH mechanisms that emerge from landmark SDOH research. Building on these principles, we introduce and apply a conceptual model that synthesizes key SDOH mechanisms into one organizing, heuristic framework that provides policymakers, practitioners, and researchers with a customizable template for conceptualizing and operationalizing the key SDOH mechanisms that represent intervention opportunities to maximize potential impact for mitigating a given health inequity. CONCLUSIONS: Our synthesis of the extant SDOH research into a heuristic framework addresses a scarcity of peer-reviewed organizing frameworks of SDOH mechanisms designed to inform practice. The framework represents a practical tool to facilitate the translation of scholarly SDOH work into evidence-based and targeted policy and programming. Such tools designed to close the research-to-practice translation gap for effective SDOH mitigation are sorely needed, given that health inequities in the United States and in many other parts of the world have widened over the past two decades.


Assuntos
Equidade em Saúde , Determinantes Sociais da Saúde , Humanos , Estados Unidos , Heurística , Política de Saúde , Disparidades nos Níveis de Saúde
4.
Nurs Outlook ; 71(6): 101996, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37349232

RESUMO

BACKGROUND: The U.S. health care system is burdened by inefficiencies, longstanding health inequities, and unstainable costs. Within the nursing profession and the broader health care sector, there is growing recognition of the need for a paradigm shift that addresses persistent structural problems and advances health equity. PURPOSE: Despite evidence of the importance of the social determinants of health (SDOH) in shaping inequitable health outcomes, practical tools for applying SDOH theory in the development of effective nurse-led programs to mitigate harmful SDOH remain scarce. METHODS: We synthesize extant SDOH literature into a heuristic framework for conceptualizing core SDOH mechanisms, constructs, and principles. FINDINGS: To illustrate how nurse scientists can use the framework to guide the development of programs for SDOH mitigation, we outline a three-step exemplar application to the U.S. Latino HIV epidemic. DISCUSSION: Our framework can inform a paradigm shift toward nurse-led, multi-level SDOH mitigation across practice, education, and research.


Assuntos
Equidade em Saúde , Determinantes Sociais da Saúde , Humanos , Papel do Profissional de Enfermagem , Disparidades nos Níveis de Saúde , Escolaridade
5.
Clin Infect Dis ; 73(Suppl 2): S146-S163, 2021 07 30.
Artigo em Inglês | MEDLINE | ID: mdl-32894747

RESUMO

Evidence regarding the important role of adolescents and young adults (AYA) in accelerating and sustaining coronavirus disease 2019 (COVID-19) outbreaks is growing. Furthermore, data suggest that 2 known factors that contribute to high severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmissibility-presymptomatic transmission and asymptomatic case presentations-may be amplified in AYA. However, AYA have not been prioritized as a key population in the public health response to the COVID-19 pandemic. Policy decisions that limit public health attention to AYA and are driven by the assumption of insignificant forward transmission from AYA pose a risk of inadvertent reinvigoration of local transmission dynamics. In this viewpoint, we highlight evidence regarding the increased potential of AYA to transmit SARS-CoV-2 that, to date, has received little attention, discuss adolescent and young adult-specific considerations for future COVID-19 control measures, and provide applied programmatic suggestions.


Assuntos
COVID-19 , SARS-CoV-2 , Adolescente , Surtos de Doenças , Humanos , Pandemias , Saúde Pública , Adulto Jovem
6.
Clin Infect Dis ; 73(9): 1711-1716, 2021 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-34228791

RESUMO

Sexually transmitted infections (STIs) represent a sizable, longstanding, and growing challenge and a national public health priority. A recent National Academies report outlines new directions for STI prevention and control, including the adoption of a new sexual health paradigm and broader ownership and accountability for addressing sexual health and STIs among diverse clinical and nonclinical actors. These recommendations have important implications for infectious disease providers with STI and human immunodeficiency virus (HIV) expertise. As part of the envisioned shift toward greater prioritization of sexual health across systems for healthcare and health promotion, STI and HIV specialty providers will need to increasingly take on responsibilities as leaders in the provision of STI-related training; provision of technical assistance; and alignment of clinical training curricula, licensing criteria, and practice guidelines for healthcare generalists.


Assuntos
Infecções por HIV , Infecções Sexualmente Transmissíveis , Infecções por HIV/prevenção & controle , Humanos , Saúde Pública , Comportamento Sexual , Infecções Sexualmente Transmissíveis/prevenção & controle
7.
Anal Chem ; 93(4): 2627-2634, 2021 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-33471510

RESUMO

In March 2020, the SARS-CoV-2 virus outbreak was declared as a world pandemic by the World Health Organization (WHO). The only measures for controlling the outbreak are testing and isolation of infected cases. Molecular real-time polymerase chain reaction (PCR) assays are very sensitive but require highly equipped laboratories and well-trained personnel. In this study, a rapid point-of-need detection method was developed to detect the RNA-dependent RNA polymerase (RdRP), envelope protein (E), and nucleocapsid protein (N) genes of SARS-CoV-2 based on the reverse transcription recombinase polymerase amplification (RT-RPA) assay. RdRP, E, and N RT-RPA assays required approximately 15 min to amplify 2, 15, and 15 RNA molecules of molecular standard/reaction, respectively. RdRP and E RT-RPA assays detected SARS-CoV-1 and 2 genomic RNA, whereas the N RT-RPA assay identified only SARS-CoV-2 RNA. All established assays did not cross-react with nucleic acids of other respiratory pathogens. The RT-RPA assay's clinical sensitivity and specificity in comparison to real-time RT-PCR (n = 36) were 94 and 100% for RdRP; 65 and 77% for E; and 83 and 94% for the N RT-RPA assay. The assays were deployed to the field, where the RdRP RT-RPA assays confirmed to produce the most accurate results in three different laboratories in Africa (n = 89). The RPA assays were run in a mobile suitcase laboratory to facilitate the deployment at point of need. The assays can contribute to speed up the control measures as well as assist in the detection of COVID-19 cases in low-resource settings.


Assuntos
COVID-19/diagnóstico , Reação em Cadeia da Polimerase em Tempo Real/métodos , Recombinases/metabolismo , SARS-CoV-2/isolamento & purificação , COVID-19/virologia , Humanos , Sensibilidade e Especificidade
8.
Am J Public Health ; 110(1): 27-31, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31725313

RESUMO

The federal government has proposed an end to HIV transmission in the United States by 2030. Although the United States has made substantial overall progress in the fight against HIV/AIDS, data released by the Centers for Disease Control and Prevention have raised concerns about widening, yet largely unrecognized, HIV infection disparities among Hispanic and Latino populations.This commentary identifies underlying drivers of increasing new HIV infections among Hispanics/Latinos, discusses existing national efforts to fight HIV in Hispanic/Latino communities, and points to gaps in the federal response. Consideration of the underlying drivers of increased HIV incidence among Hispanics/Latinos is warranted to achieve the administration's 2030 HIV/AIDS goals.Specifically, the proposed reinforcement of national efforts to end the US HIV epidemic must include focused investment in four priority areas: (1) HIV stigma reduction in Hispanic/Latino communities, (2) the availability and accessibility of HIV treatment of HIV-positive Hispanics/Latinos, (3) the development of behavioral interventions tailored to Hispanic/Latino populations, and (4) the engagement of Hispanic/Latino community leaders.


Assuntos
Infecções por HIV/etnologia , Hispânico ou Latino , Vacinas contra a AIDS , Antirretrovirais/uso terapêutico , Centers for Disease Control and Prevention, U.S./organização & administração , Participação da Comunidade/métodos , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Comportamentos Relacionados com a Saúde/etnologia , Acessibilidade aos Serviços de Saúde/organização & administração , Homossexualidade Masculina/etnologia , Humanos , Liderança , Masculino , Profilaxia Pré-Exposição/métodos , Vigilância em Saúde Pública , Assunção de Riscos , Estigma Social , Pessoas Transgênero , Estados Unidos/epidemiologia
9.
Virus Genes ; 56(4): 522-526, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32306155

RESUMO

A novel parvovirus was identified as a cell culture contaminant by metagenomic analysis. Droplet digital PCR (ddPCR) was used to determine viral loads in the cell culture supernatant and further analysis, by ddPCR and DNA sequencing, demonstrated that fetal bovine serum (FBS) used during cell culture was the source of the parvovirus contamination. The FBS contained ~ 50,000 copies of the novel parvovirus DNA per ml of serum. The viral DNA was resistant to DNAse digestion. Near-full length sequence of the novel parvovirus was determined. Phylogenetic analysis demonstrated that virus belongs to the Copiparvovirus genus, being most closely related to bovine parvovirus 2 (BPV2) with 41% identity with the non-structural protein NS1 and 47% identity with the virus capsid protein of BPV2. A screen of individual and pooled bovine sera identified a closely related variant of the novel virus in a second serum pool. For classification purposes, the novel virus has been designated bovine copiparvovirus species 3 isolate JB9 (bocopivirus 3-JB9).


Assuntos
Bocavirus/isolamento & purificação , Metagenômica , Infecções por Parvoviridae/genética , Parvovirinae/isolamento & purificação , Animais , Bovinos , Feto/virologia , Genoma Viral/genética , Infecções por Parvoviridae/virologia , Parvovirinae/genética , Soroalbumina Bovina/genética
10.
Euro Surveill ; 25(3)2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31992387

RESUMO

BACKGROUND: The ongoing outbreak of the recently emerged novel coronavirus (2019-nCoV) poses a challenge for public health laboratories as virus isolates are unavailable while there is growing evidence that the outbreak is more widespread than initially thought, and international spread through travellers does already occur. AIM: We aimed to develop and deploy robust diagnostic methodology for use in public health laboratory settings without having virus material available. METHODS: Here we present a validated diagnostic workflow for 2019-nCoV, its design relying on close genetic relatedness of 2019-nCoV with SARS coronavirus, making use of synthetic nucleic acid technology. RESULTS: The workflow reliably detects 2019-nCoV, and further discriminates 2019-nCoV from SARS-CoV. Through coordination between academic and public laboratories, we confirmed assay exclusivity based on 297 original clinical specimens containing a full spectrum of human respiratory viruses. Control material is made available through European Virus Archive - Global (EVAg), a European Union infrastructure project. CONCLUSION: The present study demonstrates the enormous response capacity achieved through coordination of academic and public laboratories in national and European research networks.


Assuntos
Técnicas de Laboratório Clínico , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/virologia , Coronavirus/classificação , Coronavirus/genética , Teste para COVID-19 , Vacinas contra COVID-19 , Técnicas de Laboratório Clínico/métodos , Coronavirus/isolamento & purificação , Surtos de Doenças , Humanos , RNA Viral/análise , Reação em Cadeia da Polimerase em Tempo Real/métodos , Sensibilidade e Especificidade
12.
Proc Natl Acad Sci U S A ; 110(38): 15253-8, 2013 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-24003121

RESUMO

Factor activating Pos9 (Fap7) is an essential ribosome biogenesis factor important for the assembly of the small ribosomal subunit with an uncommon dual ATPase and adenylate kinase activity. Depletion of Fap7 or mutations in its ATPase motifs lead to defects in small ribosomal subunit rRNA maturation, the absence of ribosomal protein Rps14 from the assembled subunit, and retention of the nascent small subunit in a quality control complex with the large ribosomal subunit. The molecular basis for the role of Fap7 in ribosome biogenesis is, however, not yet understood. Here we show that Fap7 regulates multiple interactions between the precursor rRNA, ribosomal proteins, and ribosome assembly factors in a hierarchical manner. Fap7 binds to Rps14 with a very high affinity. Fap7 binding blocks both rRNA-binding elements of Rps14, suggesting that Fap7 inhibits premature interactions of Rps14 with RNA. The Fap7/Rps14 interaction is modulated by nucleotide binding to Fap7. Rps14 strongly activates the ATPase activity but not the adenylate kinase activity of Fap7, identifying Rps14 as an example of a ribosomal protein functioning as an ATPase-activating factor. In addition, Fap7 inhibits the RNA cleavage activity of Nob1, the endonuclease responsible for the final maturation step of the small subunit rRNA, in a nucleotide independent manner. Thus, Fap7 may regulate small subunit biogenesis at multiple stages.


Assuntos
Adenosina Trifosfatases/metabolismo , Adenilato Quinase/metabolismo , Modelos Moleculares , Conformação Proteica , Pyrococcus horikoshii/enzimologia , Proteínas Ribossômicas/metabolismo , Subunidades Ribossômicas Menores/fisiologia , Sequência de Aminoácidos , Biofísica , Cromatografia em Gel , Cromatografia em Camada Fina , Dicroísmo Circular , Polarização de Fluorescência , Espectroscopia de Ressonância Magnética , Dados de Sequência Molecular , Alinhamento de Sequência , Especificidade da Espécie , Espectrometria de Fluorescência , Técnicas do Sistema de Duplo-Híbrido
13.
Heliyon ; 10(10): e31011, 2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38770337

RESUMO

Objective: Genomic surveillance and seroprevalence of severe acute respiratory syndrome coronavirus-2 (SARS CoV-2) in Bangladesh is paramount for COVID-19 pandemic preparedness yet lagging the high-income countries due to limited resources. Methods: SARS-CoV-2 variants, COVID-19 symptoms, and serology were prospectively evaluated in a cross-sectional study of Bangladeshi adults testing RT-PCR positive in 2021 and 2022. Results: SARS CoV-2 Omicron variants of asymptomatic or mild COVID-19 in 2022 replaced Delta variant infections requiring hospitalization and oxygen support. The omicron XBB became predominant in July 2022 and associated with cough, headache or body ache and loss of smell; 47 of 68 (69 %), 30 of 68 (44 %) and 27 of 68 (40 %) respectively at higher frequency than BA.1/BA.2; 16 of 88 (18 %), 13 of 88 (15 %) and 0 of 88 (0 %) p < 0.01, p < 0.01 and p < 0.0001. Linear regression analysis reveals no associations between the number of previous infections and the number of symptoms, r = -0.084, p = 0.68. The anti-nucleoprotein (N)-protein IgG post COVID-19 and anti-Spike (S) protein IgG post-COVID-19 vaccination were similar between BA.2, BA.4/BA.5 and XBB and significantly lower than the levels in delta variant infections (p < 0.001). Conclusions: Omicron XBB subvariants emerged in Bangladesh two months prior to previous reports and include unique patterns of S-protein mutations not assigned in PANGO lineage. The SARS CoV-2 omicron break-through infections persist in the presence of sustained antibody responses and vaccinations, underscoring the importance of molecular surveillance in low-income countries.

14.
Virol J ; 10: 58, 2013 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-23410000

RESUMO

BACKGROUND: The genus Flavivirus includes several pathogenic agents that cause severe illness in humans. Re-emergence of West Nile virus in Europe and continuous spread of certain flaviviruses such as dengue, yellow fever and Japanese encephalitis viruses represent a global danger to public health. Therefore, a rapid and accurate molecular method is required for diagnostics and epidemiological surveillance of flaviviruses. METHODS: A Pan-Flavi quantitative RT-PCR assay using a Locked-Nucleic Acid probe targeting the flavivirus NS5 gene was developed and optimized to detect a wide range of flaviviruses simultaneously. The specificity and sensitivity of the Pan-Flavi assay were tested using RNA of different flaviviruses and non-flaviviruses. Furthermore, the assay was compared directly to flavivirus species-specific assays for the ability to detect flaviviruses sensitively. RESULTS: Two degenerate primers and one Locked-Nucleic Acids probe were designed to amplify most of the flaviviruses. To increase the specificity and fluorescence signal of the Pan-Flavi assay for detection of yellow fever virus and dengue virus 4, additional primers and probes were included. Viral RNA of thirty different flaviviruses was detected, verifying the broad range specificity. The testing of this assay was successful, using standard plasmid and RNA dilutions of yellow fever virus vaccine strain, dengue virus 1 and tick-borne encephalitis virus, with a sensitivity limit of 10-100 genome copies/reaction. Also comparatively good results were achieved for detecting different flaviviruses by the Pan-Flavi assay when compared to the flavivirus species-specific assays. CONCLUSION: The assay is rapid, broad-range flavivirus-specific and highly sensitive making it a valuable tool for rapid detection of flaviviruses in livestock samples, epidemiological studies or as useful complement to single flavivirus-specific assays for clinical diagnosis.


Assuntos
Infecções por Flavivirus/virologia , Flavivirus/isolamento & purificação , Reação em Cadeia da Polimerase Via Transcriptase Reversa/métodos , Primers do DNA , Flavivirus/genética , Humanos , Sensibilidade e Especificidade , Especificidade da Espécie
15.
Lancet HIV ; 10(8): e552-e556, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37541707

RESUMO

Despite progress in reducing new HIV infections in the USA, publicly available data suggest that new HIV infections continue to occur at an alarming rate. In this Viewpoint, we highlight the regularity with which the existing systems for HIV prevention and treatment delivery in the USA fail and the clearly inequitable effect of the systems' failure among several priority populations of the Ending the HIV Epidemic (EHE) initiative. Existing data cast doubt on whether the current EHE efforts will suffice to achieve its 2030 goal of reducing annual new HIV infections to fewer than 3000. We outline future directions in four priority areas to regain lost ground in pursuit of the 2030 EHE goals: reducing the stigma affecting people living with and most at risk of HIV; broadening the HIV workforce; mitigating harmful social determinants of health; and recommitting and reinvesting in health in the USA more broadly.


Assuntos
Síndrome da Imunodeficiência Adquirida , Epidemias , Infecções por HIV , Humanos , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Síndrome da Imunodeficiência Adquirida/epidemiologia , Epidemias/prevenção & controle , Previsões
16.
J Adolesc Health ; 73(3): 567-573, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37330708

RESUMO

PURPOSE: Latino and Black adolescent males experience sexual health inequities, and their engagement in sexual health services remains low. Parents shape adolescent sexual health behavior and other youth outcomes. However, the role of Latino and Black fathers in promoting male adolescent sexual health is understudied, in part because about one in four fathers resides apart from their children and nonresident fathers are presumed to be less influential. We examined associations of paternal communication with sexual health service use and perceived paternal role modeling among Latino and Black adolescent males with resident and nonresident fathers. METHODS: We recruited 191 Latino and Black adolescent males aged 15-19 years and their fathers in the South Bronx, New York City, using area sampling methods; dyads completed surveys. We estimated bivariate and adjusted associations of paternal communication with adolescent male sexual health service use and perceived paternal role modeling using logistic and linear regressions. Effect measure modification by paternal residence was assessed. RESULTS: A unit increase on a five-point paternal communication scale was associated with approximately twice and 1.7 times the likelihood of clinical sexual health service use during adolescent males' lifetime and in the past 3 months, respectively; there was no significant effect measure modification by paternal residence. Paternal communication was associated with increased levels of perceived paternal role modeling and usefulness of paternal advice, with stronger associations for nonresident fathers. DISCUSSION: Both resident and nonresident Latino and Black fathers warrant greater consideration as partners in promoting male adolescent sexual health service use.


Assuntos
Relações Pais-Filho , Saúde Sexual , Adolescente , Humanos , Masculino , Assistência Ambulatorial , Comunicação , Pai , Hispânico ou Latino , Inquéritos e Questionários , Negro ou Afro-Americano
17.
Trials ; 24(1): 181, 2023 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-36906589

RESUMO

BACKGROUND: Adolescents in the U.S. experience significant negative sexual health outcomes, representing a public health priority in the U.S. Research shows that while parents play an influential role in shaping adolescent sexual behavior, surprisingly few programs engage parents in existing programming. Moreover, most efficacious parent-based programs focus on young adolescents, and few utilize delivery mechanisms that facilitate broad reach and scale-up. To address these gaps, we propose to test the efficacy of an online-delivered, parent-based intervention adapted to address both younger and older adolescent sexual risk behavior. METHODS: In this parallel, two-arm, superiority randomized controlled trial (RCT), we propose to evaluate Families Talking Together Plus (FTT+), an adaptation of an existing and efficacious FTT parent-based intervention, in shaping sexual risk behavior among adolescents aged 12-17 and delivered via a teleconferencing application (e.g., Zoom). The study population will include n=750 parent-adolescent dyads recruited from public housing developments in the Bronx, New York. Adolescents will be eligible if they are between the ages of 12 and 17 years of age, self-report as Latino and/or Black, have a parent or primary caregiver, and are South Bronx residents. Parent-adolescent dyads will complete a baseline survey, after which they will be assigned to either the FTT+ intervention condition (n=375) or the passive control condition (n=375) in a 1:1 allocation ratio. Parents and adolescents in each condition will complete follow-up assessments 3 and 9 months post-baseline. The primary outcomes will include sexual debut and ever sex, and the secondary outcomes will include the frequency of sex acts, number of lifetime sexual partners, number of unprotected sex acts, and linkage to health and educational/vocational services in the community. We will utilize intent-to-treat analyses of 9-month outcomes and single degree of freedom contrasts comparing the intervention to the control group for primary and secondary outcomes. DISCUSSION: The proposed evaluation and analysis of the FTT+ intervention will address gaps in the current cadre of parent-based programs. If efficacious, FTT+ would represent a model for scale-up and adoption of parent-based approaches designed to address adolescent sexual health in the U.S. TRIAL REGISTRATION: ClinicalTrials.gov NCT04731649. Registered on February 1, 2021.


Assuntos
Saúde Sexual , Humanos , Adolescente , Criança , Comportamento Sexual , Sexo sem Proteção , Saúde do Adolescente , Inquéritos e Questionários , Ensaios Clínicos Controlados Aleatórios como Assunto
18.
Emerg Infect Dis ; 18(5): 859-62, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22515991

RESUMO

During 2010-2011, we investigated interspecies transmission of partetraviruses between predators (humans and chimpanzees) and their prey (colobus monkeys) in Côte d'Ivoire. Despite widespread infection in all species investigated, no interspecies transmission could be detected by PCR and genome analysis. All sequences identified formed species- or subspecies (chimpanzee)-specific clusters, which supports a co-evolution hypothesis.


Assuntos
Variação Genética , Infecções por Parvoviridae/transmissão , Parvovirus/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Criança , Colobus/virologia , Côte d'Ivoire , DNA Viral/química , Humanos , Pessoa de Meia-Idade , Dados de Sequência Molecular , Pan troglodytes/virologia , Infecções por Parvoviridae/virologia , Parvovirus/classificação , Filogenia , Análise de Sequência de DNA , Proteínas Virais/genética , Adulto Jovem
19.
Commun Biol ; 5(1): 1141, 2022 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-36302954

RESUMO

Muscle size is controlled by the PI3K-PKB/Akt-mTORC1-FoxO pathway, which integrates signals from growth factors, energy and amino acids to activate protein synthesis and inhibit protein breakdown. While mTORC1 activity is necessary for PKB/Akt-induced muscle hypertrophy, its constant activation alone induces muscle atrophy. Here we show that this paradox is based on mTORC1 activity promoting protein breakdown through the ubiquitin-proteasome system (UPS) by simultaneously inducing ubiquitin E3 ligase expression via feedback inhibition of PKB/Akt and proteasome biogenesis via Nuclear Factor Erythroid 2-Like 1 (Nrf1). Muscle growth was restored by reactivation of PKB/Akt, but not by Nrf1 knockdown, implicating ubiquitination as the limiting step. However, both PKB/Akt activation and proteasome depletion by Nrf1 knockdown led to an immediate disruption of proteome integrity with rapid accumulation of damaged material. These data highlight the physiological importance of mTORC1-mediated PKB/Akt inhibition and point to juxtaposed roles of the UPS in atrophy and proteome integrity.


Assuntos
Complexo de Endopeptidases do Proteassoma , Ubiquitina , Alvo Mecanístico do Complexo 1 de Rapamicina/metabolismo , Complexo de Endopeptidases do Proteassoma/metabolismo , Ubiquitina/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Proteostase , Proteoma/metabolismo , Músculo Esquelético/metabolismo
20.
Sci Rep ; 12(1): 17878, 2022 10 25.
Artigo em Inglês | MEDLINE | ID: mdl-36284151

RESUMO

The Rapid proliferation of traditional gold mining sites in the Kedougou region has led to massive migration of people from neighbouring West African countries and the establishment of several small villages where poor hygiene and sanitation conditions exist. In this context, a Hepatitis E virus outbreak was reported in Kedougou in 2014 with several cases among the traditional mining workers. Herein, we described epidemiological and laboratory data collected during the outbreak's investigation from February 2012 to November 2014. Any suspected, contact or probable case was investigated, clinical and epidemiological data were collected. In our study, sera were collected and tested for viral RNA and anti-Hepatitis E virus (HEV) IgM. Archived serum samples from Kedougou were retrospectively screened by real-time polymerase chain reaction (RT-PCR) and enzyme-linked immunosorbent assay (ELISA). A total of 65 water samples collected from ponds and wells surrounding gold panners' sites and habitats and 75 tissues samples from rats captured in the environment of traditional gold mining sites were also tested. A total of 1617 sera were collected from 698 suspected cases, 862 contacts and 57 persons with missing information. The median age was 20 (1-88 years-old) and the sex ratio was 1.72. An overall rate of 64.62% (1045/1617) of these patients tested positive for HEV with a high case fatality rate in pregnant women. All water samples and animal tissues tested negative for HEV. Our data help not only determining of the beginning of the HEV outbreak to March 2012, but also identifying risk factors associated to its emergence. However, there is a need to implement routine diagnosis, surveillance and training of health personnel in order to reduce mortality especially among pregnant women. In addition, further studies are needed to identify the virus reservoir and environmental risk factors for HEV in the Kedougou region.


Assuntos
Vírus da Hepatite E , Hepatite E , Feminino , Humanos , Gravidez , Ratos , Animais , RNA Viral/genética , Estudos Retrospectivos , Senegal , Vírus da Hepatite E/genética , Anticorpos Anti-Hepatite , Imunoglobulina M , Surtos de Doenças , Ensaio de Imunoadsorção Enzimática , Ouro , Água
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