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1.
Pediatr Cardiol ; 2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38319318

RESUMO

Tetralogy of Fallot (TOF), the most common cyanotic congenital heart disease in adults, has excellent long-term survival. However, many patients (30-45%) develop late arrhythmias. Previous studies have identified predictors of arrhythmia (atrial or ventricular) using clinical markers that predate arrhythmia onset by many years. Our objective was to develop a predictive model for incident atrial arrhythmias within two years of clinical evaluation and diagnostic testing. A single-center nested unmatched case-control study of 174 adults with repaired TOF. We included only patients with results from ECG and echocardiogram data in the required time interval (3-24 months before first arrhythmia for cases; 24 months of follow-up for controls). A predictive multivariable model for risk of incident atrial arrhythmia was developed using logistic regression with a least absolute shrinkage and selection operator (LASSO). Of 41 demographic, surgical, and diagnostic variables, six were selected as having predictive value for atrial arrhythmia based on cross validation. The factors with the greatest predictive value in decreasing order were moderate / severe tricuspid regurgitation (adjusted odds ratio (OR) 149.42), QRS fragmentation (OR 28.08), severe pulmonary regurgitation (OR 8.22), RV systolic dysfunction (OR 2.95), 1st degree AV block (OR 2.59), and age at time of surgical repair (OR 1.02). Predictors for atrial arrhythmia in our study suggested abnormal right ventricle anatomical function and electrophysiologic properties (conduction and repolarization) as the primary underlying substrate.

3.
J Low Genit Tract Dis ; 27(3): 248-251, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37201549

RESUMO

OBJECTIVES: The aim of the study is to determine whether a positive OncoE6 Anal Test result has statistically significant higher odds of being associated with high-grade squamous intraepithelial lesion (HSIL) and to calculate sensitivity and specificity of this test for predicting HSIL in adult men who have sex with men and are living with HIV (MSMLWH). MATERIALS AND METHODS: Men living with HIV 18 years or older having ≥atypical squamous cells of undetermined significance-grade anal cytology results were eligible to enroll in this cross-sectional study. Anal samples were collected just before the high-resolution anoscopy procedure. OncoE6 Anal Test results were compared with histology, the reference standard. Sensitivity, specificity, and odds ratio were calculated using HSIL as the threshold. RESULTS: Two hundred seventy-seven consented MSMLWH were enrolled between June 2017 and January 2022. Of these, 219 (79.1%) had biopsies obtained and histology performed; 81 of 219 participants (37%) had 1 or more biopsies with HSIL results while the remaining 138 of 219 (63%) had only low-grade squamous intraepithelial lesion or were negative for dysplasia. Anal samples from 7 participants (8.6%, 7/81) with HSIL and 3 (2.2%, 3/138) with low-grade squamous intraepithelial lesion had positive OncoE6 Anal Test results. Odds of having HSIL were 4.26 times higher among participants testing positive for HPV16/HPV18 E6 oncoprotein(s) (OR = 4.26, 95% CI = 1.07-16.95, p = .04). The OncoE6 Anal Test demonstrated excellent specificity, 97.83% (93.78-99.55), but poor sensitivity, 8.64% (3.55-17.0). CONCLUSIONS: In this highest-risk population for anal cancer, one could combine the OncoE6 Anal Test, having excellent specificity, with the anal Pap test, having higher sensitivity. Patients found having both an abnormal anal Pap and positive OncoE6 Anal Test result could be triaged for rapid scheduling of their high-resolution anoscopy.


Assuntos
Neoplasias do Ânus , Carcinoma in Situ , Carcinoma de Células Escamosas , Infecções por HIV , Infecções por Papillomavirus , Minorias Sexuais e de Gênero , Lesões Intraepiteliais Escamosas , Adulto , Masculino , Humanos , Homossexualidade Masculina , Estudos Transversais , Canal Anal/patologia , Carcinoma in Situ/patologia , Carcinoma de Células Escamosas/patologia , Lesões Intraepiteliais Escamosas/patologia , Neoplasias do Ânus/patologia , Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/epidemiologia , Infecções por Papillomavirus/patologia , Papillomaviridae
4.
Clin J Am Soc Nephrol ; 17(10): 1495-1505, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36104084

RESUMO

BACKGROUND AND OBJECTIVES: Limited implementation of palliative care practices in hemodialysis may contribute to end-of-life care that is intensive and not patient centered. We determined whether a learning collaborative for hemodialysis center providers improved delivery of palliative care best practices. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Ten US hemodialysis centers participated in a pre-post study targeting seriously ill patients between April 2019 and September 2020. Three practices were prioritized: screening for serious illness, goals of care discussions, and use of a palliative dialysis care pathway. The collaborative educational bundle consisted of learning sessions, communication skills training, and implementation support. The primary outcome was change in the probability of complete advance care planning documentation among seriously ill patients. Health care utilization was a secondary outcome, and implementation outcomes of acceptability, adoption, feasibility, and penetration were assessed using mixed methods. RESULTS: One center dropped out due to the coronavirus disease 2019 pandemic. Among the remaining nine centers, 20% (273 of 1395) of patients were identified as seriously ill preimplementation, and 16% (203 of 1254) were identified as seriously ill postimplementation. From the preimplementation to postimplementation period, the adjusted probability of complete advance care planning documentation among seriously ill patients increased by 34.5 percentage points (95% confidence interval, 4.4 to 68.5). There was no difference in mortality or in utilization of palliative hemodialysis, hospice referral, or hemodialysis discontinuation. Screening for serious illness was widely adopted, and goals of care discussions were adopted with incomplete integration. There was limited adoption of a palliative dialysis care pathway. CONCLUSIONS: A learning collaborative for hemodialysis centers spanning the coronavirus disease 2019 pandemic was associated with adoption of serious illness screening and goals of care discussions as well as improved documentation of advance care planning for seriously ill patients. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER: Pathways Project: Kidney Supportive Care, NCT04125537.


Assuntos
Planejamento Antecipado de Cuidados , COVID-19 , Assistência Terminal , Humanos , COVID-19/epidemiologia , Cuidados Paliativos/métodos , Diálise Renal/métodos , Assistência Terminal/métodos
5.
Womens Health (Lond) ; 18: 17455057221099486, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35579000

RESUMO

OBJECTIVES: Violence and HIV/AIDS syndemic highly prevalent among women impairs HIV prevention efforts. Prolonged exposure to violence results in physical trauma and psychological distress. Building on previous findings regarding genital immune dysregulation following sexual abuse exposure, we investigate here whether systemic changes occur as well. METHODS: Using the Women's Interagency HIV Study repository, 77 women were stratified by HIV serostatus and categorized into four subgroups: (1) no sexual abuse history and lower depression score (Control); (2) no sexual abuse history but higher depression score (Depression); (3) high sexual abuse exposure and lower depression score (Abuse); (4) high sexual abuse exposure and higher depression score (Abuse + Depression). Inflammation-associated immune biomarkers (TNF-α, IL-6, IL-1α, IL-1ß, TGF-ß, MIP-3α, IP-10, MCP-1, and Cathepsin-B) and anti-inflammatory/anti-HIV biomarkers (Secretory leukocyte protease inhibitor, Elafin, human beta-defensin-2 (HBD-2), alpha-defensins 1-3, Thrombospondin, Serpin-A1, and Cystatin-C) were measured in plasma using enzyme-linked immunosorbent assay. Within each HIV serostatus, differences in biomarker levels between subgroups were evaluated with Kruskal-Wallis and Dunn's test with Bonferroni correction. Spearman correlations between biomarkers were assessed for each subgroup. RESULTS: Compared to the Control and Depression groups, Abuse + Depression was associated with significantly higher levels of chemokines MIP-3α and IP-10 (p < 0.01) and lower levels of inflammatory cytokine IL-1ß (p < 0.01) in the HIV-uninfected population. Human beta-defensin-2 was lowest in the Abuse + Depression group (p < 0.05 versus Depression). By contrast, among HIV-infected, Abuse and Abuse + Depression were associated with lower levels of MIP-3α (p < 0.05 versus Control) and IP-10 (p < 0.05, Abuse versus Control). Inflammatory cytokine IL-6 was higher in both Abuse groups (p < 0.05 versus Control), while Elafin was lowest in the Abuse + Depression group (p < 0.01 versus Depression). CONCLUSION: We report compromised plasma immune responses that parallel previous findings in the genital mucosa, based on sexual abuse and HIV status. Systemic biomarkers may indicate trauma exposure and impact risk of HIV acquisition/transmission.


Assuntos
Exposição à Violência , Infecções por HIV , Delitos Sexuais , beta-Defensinas , Biomarcadores , Quimiocina CXCL10 , Estudos Transversais , Citocinas , Elafina/análise , Feminino , Humanos , Imunidade Inata , Interleucina-6 , Violência , beta-Defensinas/análise
6.
Am J Kidney Dis ; 79(5): 699-708.e1, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34648897

RESUMO

RATIONALE & OBJECTIVE: Although guidelines recommend more and earlier advance care planning (ACP) for patients with chronic kidney disease (CKD), scant evidence exists to guide incorporation of ACP into clinical practice for patients with stages of CKD prior to kidney failure. Involving nephrology team members in addition to primary care providers in this important patient-centered process may increase its accessibility. Our study examined the effect of coaching implemented in CKD clinics on patient engagement with ACP. STUDY DESIGN: Multicenter, pragmatic randomized controlled trial. SETTING & PARTICIPANTS: Three CKD clinics in different states participated: 273 patients consented to participate, 254 were included in analysis. Eligible patients were 55 years or older, had stage 3-5 CKD, and were English speaking. INTERVENTION: Nurses or social workers with experience in nephrology or palliative care delivered individualized in-person ACP sessions. The enhanced control group was given Make Your Wishes About You (MY WAY) education materials and was verbally encouraged to bring their completed advance directives to the clinic. OUTCOME: Primary outcome measures were scores on a 45-point ACP engagement scale at 14 weeks and a documented advance directive or portable medical order at 16 weeks after enrollment. RESULTS: Among 254 participants analyzed, 46.5% were 65-74 years of age, and 54% had CKD stage 3. The coached patients scored 1.9 points higher at 14 weeks on the ACP engagement scale (ß = 1.87 [95% CI, 0.13-3.64]) adjusted for baseline score and site. Overall, 32.8% of intervention patients (41 of 125) had an advance directive compared with 17.8% (23 of 129) of patients in the control group. In a site-adjusted multivariable model, coached patients were 79% more likely to have a documented advance directive or portable medical order (adjusted risk ratio, 1.79 [95% CI, 1.18-2.72]), with the impact principally evident at only 1 study site. LIMITATIONS: Small number of study sites and possible unrepresentativeness of the broader CKD population by study participants. CONCLUSIONS: Individualized coaching may be effective in enhancing ACP, but its impact may be influenced by the health care environment where it is delivered. FUNDING: The Patrick and Catherine Weldon Donaghue Medical Research Foundation, via the Greater Value Portfolio. TRIAL REGISTRATION: Registered at ClinicalTrials.gov with study number NCT03506087.


Assuntos
Planejamento Antecipado de Cuidados , Tutoria , Insuficiência Renal Crônica , Diretivas Antecipadas , Feminino , Humanos , Masculino , Participação do Paciente , Insuficiência Renal Crônica/terapia
7.
Am J Reprod Immunol ; 86(3): e13432, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33894020

RESUMO

PROBLEM: HIV/AIDS and sexual violence act synergistically and compromise women's health. Yet, immuno-biological mechanisms linking sexual violence and increased HIV susceptibility are poorly understood. METHODS: We conducted a cross-sectional pilot study of HIV-uninfected women, comparing 13 women exposed to forced vaginal penetration within the past 12 weeks (Exposed) with 25 Non-Exposed women. ELISA assays were conducted for 49 biomarkers associated with HIV pathogenesis in plasma and cervicovaginal lavage (CVL). Differences between Exposed and Non-Exposed were analyzed by linear and logistic regression, using propensity score weighting to control for age, race, socioeconomic status, menstrual cycle, and contraceptive use. RESULTS: In CVL, Exposed women had significantly reduced chemokines MIP-3α (p < .01), MCP-1 (p < .01), and anti-HIV/wound-healing thrombospondin-1 (p = .03). They also had significantly increased inflammatory cytokine IL-1α (p < 0.01) and were more likely to have detectable wound-healing PDGF (p = .02). In plasma, Exposed women had reduced chemokines MIP-3α (p < .01) and IL-8 (p < .01), anti-inflammatory cytokine TGF-ß (p = .02), anti-HIV/antimicrobial HBD-2 (p = .02), and wound-healing MMP-1 (p = 0.02). They also had increased thrombospondin-1 (p < .01) and Cathepsin B (p = .01). After applying the stringent method of false discovery rate adjustment, differences for IL-1α (p = .05) and MCP-1 (p = .03) in CVL and MIP-3α (p = .03) in plasma remained significant. CONCLUSIONS: We report systemic and mucosal immune dysregulation in women exposed to sexual violence. As these biomarkers have been associated with HIV pathogenesis, dysregulation may increase HIV susceptibility.


Assuntos
Suscetibilidade a Doenças/imunologia , Infecções por HIV/imunologia , Delitos Sexuais , Adolescente , Adulto , Biomarcadores/sangue , Estudos Transversais , Feminino , Humanos , Pessoa de Meia-Idade , Projetos Piloto , Adulto Jovem
8.
Kidney360 ; 2(1): 114-128, 2021 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-35368811

RESUMO

Current care models for older patients with kidney failure in the United States do not incorporate supportive care approaches. The absence of supportive care contributes to poor symptom management and unwanted forms of care at the end of life. Using an Institute for Healthcare Improvement Collaborative Model for Achieving Breakthrough Improvement, we conducted a focused literature review, interviewed implementation experts, and convened a technical expert panel to distill existing evidence into an evidence-based supportive care change package. The change package consists of 14 best-practice recommendations for the care of patients seriously ill with kidney failure, emphasizing three key practices: systematic identification of patients who are seriously ill, goals-of-care conversations with identified patients, and care options to respond to patient wishes. Implementation will be supported through a collaborative consisting of three intensive learning sessions, monthly learning and collaboration calls, site data feedback, and quality-improvement technical assistance. To evaluate the change package's implementation and effectiveness, we designed a mixed-methods hybrid study involving the following: (1) effectiveness evaluation (including patient outcomes and staff perception of the effectiveness of the implementation of the change package); (2) quality-improvement monitoring via monthly tracking of a suite of quality-improvement indicators tied to the change package; and (3) implementation evaluation conducted by the external evaluator using mixed methods to assess implementation of the collaborative processes. Ten dialysis centers across the country, treating approximately 1550 patients, will participate. This article describes the process informing the intervention design, components of the intervention, evaluation design and measurements, and preliminary feasibility assessments. Clinical Trial registry name and registration number: Pathways Project: Kidney Supportive Care, NCT04125537.


Assuntos
Cuidados Paliativos , Diálise Renal , Comunicação , Humanos , Rim , Cuidados Paliativos/métodos , Melhoria de Qualidade , Estados Unidos
9.
Prev Med ; 133: 106020, 2020 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-32045615

RESUMO

Broader adoption of effective school-based obesity prevention interventions is critical to the success of ongoing efforts to address the childhood obesity epidemic. School-level barriers to adopting evidence-based interventions may be overcome by empowering school-level leaders to select appropriate intervention components. We used a quasi-experimental pragmatic trial design to evaluate a tailored obesity prevention intervention in 9 schools in a mid-sized urban school district in upstate New York from fall 2013 to spring 2016. We analyzed repeated height and weight measurements from an existing district screening system on 5882 students from intervention and control schools matched using propensity score methods. We assessed diet and physical activity changes in intervention schools using surveys and direct observation. The intervention led to a change of -0.27 (p = 0.026, 95% Confidence Interval (CI): -0.51, -0.03) and -0.28 (p = 0.031, 95% CI: -0.54, -0.03) BMI units in spring 2014 and fall 2014, respectively. There were no significant differences between intervention and control from spring 2015 to spring 2016. Despite the lack of sustained effects on BMI, we demonstrated the potential of supporting school leaders in a low-income district to implement supportive policy and practice changes and of using an existing BMI screening system to reduce the burden of health promotion evaluation.

10.
Semin Arthritis Rheum ; 50(1): 149-155, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31303436

RESUMO

OBJECTIVE: Juvenile idiopathic inflammatory myopathies (JIIM) are rare, chronic autoimmune muscle diseases of childhood, with the potential for significant morbidity. Data on long-term outcomes is limited. In this study we investigate correlations between clinical and demographic features with long-term outcomes in a referral population of adult patients with JIIM. METHODS: Forty-nine adults with JIIM were assessed at two referral centers between 1994 and 2016. Features of active disease and damage at a cross-sectional assessment were obtained. Regression modeling was used to examine factors associated with long-term outcomes, defined by the presence of calcinosis or a higher adjusted Myositis Damage Index (MDI) score. A multivariable model of MDI was constructed using factors that were statistically significant in bivariate models. RESULTS: At a median of 11.5 [IQR 4.5-18.9] years following diagnosis, median American College of Rheumatology (ACR) functional class was 2 [1.5-3.0], Health Assessment Questionnaire (HAQ) score was 0.4 out of 3.0 [0.0-1.0], and manual muscle testing (MMT) score was 229 out of 260 [212.6-256.8]. Median MDI score was 6.0 [3.5-8.9], with the most commonly damaged organ systems being cutaneous and musculoskeletal. Factors associated with an elevated MDI score were the presence of erythroderma and other cutaneous manifestations, disease duration, and ACR functional class. Calcinosis was present in 55% of patients. The strongest predictors of calcinosis were disease duration, periungual capillary changes, and younger age at diagnosis. CONCLUSION: In a tertiary referral population, long-term functional outcomes of JIIM are generally favorable, with HAQ scores indicative of mild disability. Although most patients had mild disease activity and virtually all had significant disease damage, severe or systemic damage was rare. Certain clinical features are associated with long-term damage and calcinosis.


Assuntos
Calcinose/complicações , Dermatomiosite/diagnóstico , Pele/fisiopatologia , Adolescente , Adulto , Calcinose/fisiopatologia , Dermatomiosite/complicações , Dermatomiosite/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Resultado do Tratamento , Adulto Jovem
11.
J Investig Med ; 67(6): 1018-1023, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30723119

RESUMO

To examine how to increase research career outcomes among medical graduates, we analyzed the impact of the Research Scholarly Concentration at The George Washington University School of Medicine and Health Sciences. Residency placement, subsequent scholarship, and career outcomes were compared among 670 graduates who participated in the elective Clinical and Translational Research Scholarly Concentration or no Concentration between 2009 and 2018. We conducted a retrospective study of residency match (highly selective vs less selective), job type (academic vs non-academic), and postmedical school publications (any vs none). We compared the outcomes between Research Scholarly Concentration graduates and those with no Concentration, matched by graduation year (n=335). For Research Scholarly Concentration graduates, we examined the association between research outcomes and duration of research experience before medical school (n=232). Research Scholarly Concentration graduates were more likely to place in a highly selective residency (40.2% vs 21.6%, p<0.0001), 68% more likely to publish after medical school (OR=1.68, 95% CI 1.10 to 2.58), and almost four times as likely to have taken an academic health center job (OR=3.82, 95% CI 1.72 to 8.46) than graduates with no Concentration. Surprisingly, the length of research experience before medical school was not associated with these outcomes among Research Scholarly Concentration graduates. This suggests that a medical school Research Scholarly Concentration is effective in training physician researchers and should be available to both novices and research-experienced matriculants. These data suggest how other medical schools might plan Scholarly Concentration programs to improve research outcomes among medical graduates.


Assuntos
Pesquisa Biomédica , Estudantes de Medicina , Escolha da Profissão , Humanos , Internato e Residência , Médicos , Publicações , Pesquisa Translacional Biomédica
12.
Nephrol Nurs J ; 45(5): 411-421, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30304626

RESUMO

Advance care planning for persons with chronic kidney disease is under-utilized despite evidence it can improve care at the end of life. Motivational interviewing and Stages of Change Theory can help healthcare professionals elicit behavior change. This article outlines an approach to advance care planning using motivational interviewing with a healthcare coach to assist patients in expressing their unique values and wishes regarding care at the end of life. This Make Your Wishes About You (MY WAY) approach to advance care planning for patients with chronic kidney disease includes patient education material and a coach training curriculum freely available from the Coalition for Supportive Care of Kidney Patients.


Assuntos
Planejamento Antecipado de Cuidados , Entrevista Motivacional , Insuficiência Renal Crônica , Currículo , Humanos
13.
BMC Res Notes ; 10(1): 474, 2017 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-28893321

RESUMO

BACKGROUND: Drug resistance limits options for antiretroviral therapy (ART) and results in poorer health outcomes among HIV-infected persons. We sought to characterize resistance patterns and to identify predictors of resistance in Washington, DC. METHODS: We analyzed resistance in the DC Cohort, a longitudinal study of HIV-infected persons in care in Washington, DC. We measured cumulative drug resistance (CDR) among participants with any genotype between 1999 and 2014 (n = 3411), transmitted drug resistance (TDR) in ART-naïve persons (n = 1503), and acquired drug resistance (ADR) in persons with genotypes before and after ART initiation (n = 309). Using logistic regression, we assessed associations between patient characteristics and transmitted resistance to any antiretroviral. RESULTS: Prevalence of TDR was 20.5%, of ADR 40.5%, and of CDR 45.1% in the respective analysis groups. From 2004 to 2013, TDR prevalence decreased for nucleoside and nucleotide analogue reverse transcriptase inhibitors (15.0 to 5.5%; p = 0.0003) and increased for integrase strand transfer inhibitors (INSTIs) (0.0-1.4%; p = 0.04). In multivariable analysis, TDR was not associated with age, race/ethnicity, HIV risk group, or years from HIV diagnosis. CONCLUSIONS: In this urban cohort of HIV-infected persons, almost half of participants tested had evidence of CDR; and resistance to INSTIs was increasing. If this trend continues, inclusion of the integrase-encoding region in baseline genotype testing should be strongly considered.


Assuntos
Antirretrovirais , Farmacorresistência Viral , Infecções por HIV/tratamento farmacológico , Adolescente , Adulto , Idoso , District of Columbia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Prevalência , População Urbana/estatística & dados numéricos , Adulto Jovem
14.
Am J Reprod Immunol ; 78(1)2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28467001

RESUMO

Studies have implicated sexual violence as a strong correlate of HIV acquisition in women. Characterizing how such violence affects the female immune system may provide insight into the biological mechanisms of HIV transmission and ultimately improve global HIV prevention strategies. Little research has been carried out in this domain, and the obstacles to investigation can be daunting. Here, we describe methodological challenges encountered and solutions explored while implementing a study of dysregulation of immune biomarkers potentially indicative of increased HIV susceptibility in women following sexual assault. Challenges included accessing sexual assault survivors and defining sexual assault, promoting study participant well-being during research engagement, reducing selection and information bias, collecting and processing biological samples, and adjusting for confounders such as reproductive tract infections and emotional and physical abuse. We found that many survivors of sexual assault welcomed the attention from study staff and felt empowered by the opportunity to help other women at risk for violence. Well-trained research staff and well-articulated community and medical partnerships were key methods to overcoming challenges while promoting the safety and welfare of vulnerable study participants.


Assuntos
Infecções por HIV , Delitos Sexuais , Biomarcadores , Suscetibilidade a Doenças/imunologia , Infecções por HIV/imunologia , Infecções por HIV/transmissão , Humanos , Pesquisa
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