Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 86
Filtrar
1.
Ethics Hum Res ; 46(1): 14-25, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38240396

RESUMO

Assessment of risks and benefits of study participation is standard practice preceding the initiation of human subjects research. Although tracking adverse events during research participation is routine, collecting information from participants about what they perceive as benefits is less common. We longitudinally tracked social risks and benefits of participation among a cohort of 241 men who have sex with men participating in a sexual health study to improve participants' experiences and enhance understanding of participant motivations to enroll and attend follow-up. Of the participants who returned for at least one follow-up visit (n = 217, 90%), most (n = 185, 85%) reported positive consequences resulting from participation. Reporting of negative social consequences was rare, and all concerned a stigmatized reaction from someone learning about the participant's involvement in a sexual health study. Better identification of both positive and negative consequences resulting from research participation may improve how researchers design, recruit, and conduct research.


Assuntos
Homossexualidade Masculina , Minorias Sexuais e de Gênero , Masculino , Humanos , Comportamento Sexual , Motivação , Comportamento Compulsivo
2.
Infect Immun ; 91(5): e0007923, 2023 05 16.
Artigo em Inglês | MEDLINE | ID: mdl-37092998

RESUMO

Neisseria meningitidis historically has been an infrequent and sporadic cause of urethritis and other urogenital infections. However, a nonencapsulated meningococcal clade belonging to the hyperinvasive clonal complex 11.2 lineage has recently emerged and caused clusters of urethritis cases in the United States and other countries. One of the genetic signatures of the emerging N. meningitidis urethritis clade (NmUC) is a chromosomal gene conversion event resulting in the acquisition of the Neisseria gonorrhoeae denitrification apparatus-the N. gonorrhoeae alleles encoding the nitrite reductase AniA, the nitric oxide (NO) reductase NorB, and the intergenic promoter region. The biological importance of the N. gonorrhoeae AniA-NorB for adaptation of the NmUC to a new environmental niche is investigated herein. We found that oxygen consumption, nitrite utilization, and NO production were significantly altered by the conversion event, resulting in different denitrifying aerobic and microaerobic growth of the clade. Further, transcription of aniA and norB in NmUC isolates differed from canonical N. meningitidis, and important polymorphisms within the intergenic region, which influenced aniA promoter activity of the NmUC, were identified. The contributions of three known meningococcal regulators (NsrR, FNR, and NarQP) in controlling the denitrification pathway and endogenous NO metabolism were distinct. Overall, transcription of aniA was dampened relative to canonical N. meningitidis, and this correlated with the lower NO accumulation in the clade. Denitrification and microaerobic respiration were bolstered, and protection against host-derived NO was likely enhanced. The acquisition of the N. gonorrhoeae denitrification pathway by the NmUC supports the clade's adaptation and survival in a microaerobic urogenital environment.


Assuntos
Gonorreia , Neisseria meningitidis , Uretrite , Estados Unidos , Humanos , Neisseria meningitidis/genética , Neisseria meningitidis/metabolismo , Neisseria gonorrhoeae/genética , Neisseria gonorrhoeae/metabolismo , Óxido Nítrico/metabolismo , Respiração
3.
Open Forum Infect Dis ; 10(1): ofac661, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36655188

RESUMO

The US Neisseria meningitidis urethritis clade (US_NmUC) harbors gonococcal deoxyribonucleic acid alleles and causes gonorrhea-like urogenital tract disease. A large convenience sample of US_NmUC isolates (N = 122) collected between January 2015 and December 2019 in Columbus, Ohio demonstrated uniform susceptibility to antibiotics recommended for gonorrhea treatment and meningococcal chemoprophylaxis.

4.
Perspect Sex Reprod Health ; 55(1): 38-48, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36336335

RESUMO

BACKGROUND: The number of women using long-acting reversible contraception (LARC)-intrauterine devices (IUDs) and implants-is increasing and 14% of contraceptive users in the United States adopt LARC. We examined correlates of LARC never-use in a population-based survey of reproductive-aged women in Ohio. METHODS: We analyzed data from the 2018-19 Ohio Survey of Women. We examined the prevalence of LARC never-use and reasons for never-use among ever users of contraception (N = 2388). Using Poisson regression to generate prevalence ratios (PRs), we examined associations between selected correlates (demographic factors, healthcare access/quality measures, and religious/political views) and LARC never-use. RESULTS: Most Ohio women (74%) had never used LARC. Commonly reported reasons for not using an IUD or an implant were preferring a different method (46% and 45%, respectively), not wanting an object inside their body (45% and 43%), side effect concerns (39% and 33%), insertion/removal concerns (31% and 25%), and unfamiliarity (13% and 20%). Conservative political views (PR: 1.12, 95% confidence interval [CI]: 1.04-1.22), pro-life affiliation (PR: 1.11, 95% CI: 1.02-1.20), placing high importance on religion in daily life (PR: 1.15, 95% CI: 1.06-1.26), and being non-Hispanic white as compared to non-Hispanic Black (PR: 1.20, 95% CI: 1.02-1.41) were significantly associated with LARC never-use. Findings were generally similar for models analyzing IUD and implant never-use separately. CONCLUSIONS: Among ever-users of contraception, LARC never-use was associated with having conservative political views, being religious, and having a pro-life affiliation. Except for race/ethnicity, demographic and healthcare measures were not associated with LARC never-use among women in Ohio.


Assuntos
Anticoncepcionais Femininos , Dispositivos Intrauterinos , Contracepção Reversível de Longo Prazo , Adulto , Feminino , Humanos , Estados Unidos , Ohio , Anticoncepção , Etnicidade , Anticoncepcionais Femininos/uso terapêutico
5.
Contraception ; 117: 45-49, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36087646

RESUMO

OBJECTIVES: Existing research has not thoroughly characterized the psychosocial costs associated with seeking abortion care in restrictive states. Our study seeks to fill this gap by analyzing the accounts of Ohio abortion patients from 2018 to 2019. STUDY DESIGN: Using inductive and deductive approaches, we analyzed semi-structured in-depth qualitative interviews with 41 Ohio residents who obtained abortion care from one of three clinics in Ohio or Pennsylvania. RESULTS: Ohioans seeking abortion care often experienced fear of judgment, interpersonal strain, and stress as a result of efforts to overcome pre-Dobbs financial, geographic, and timing challenges. Those who needed financial assistance or traveled more than an hour generally reported greater exposure to psychosocial costs. CONCLUSIONS: Participants in this study incurred a complex set of psychosocial costs. Psychosocial costs often resulted from, or were exacerbated by, the financial, geographic, and time-sensitive burdens that patients experienced seeking care. IMPLICATIONS: The psychosocial costs incurred by patients seeking abortion care may be exacerbated in restrictive contexts, especially those who do not have access to insurance coverage for care. Psychosocial costs associated with care seeking are likely to increase as states implement more severe restrictions post-Dobbs. To fully understand abortion costs, researchers must examine costs comprehensively, including both financial and psychosocial costs.


Assuntos
Aborto Induzido , Acessibilidade aos Serviços de Saúde , Gravidez , Feminino , Humanos , Ohio , Aborto Induzido/psicologia , Cobertura do Seguro , Viagem
7.
J Clin Microbiol ; 60(2): e0173221, 2022 02 16.
Artigo em Inglês | MEDLINE | ID: mdl-34817203

RESUMO

Urethral infections caused by an emerging nongroupable (NG) urethrotropic clade of Neisseria meningitidis were first reported in the United States in 2015 (the "U.S. NmNG urethritis clade"). Here, we evaluate for the presence of other urethral pathogens in men with U.S. NmNG urethritis clade infection. We evaluated 129 urine specimens collected from men at a sexual health clinic, including 33 from patients with culture-confirmed or suspected urethral N. meningitidis infection and 96 specimens in which nucleic acid amplification test detected Neisseria gonorrhoeae, Chlamydia trachomatis, both pathogens, or neither pathogen. N. meningitidis was detected first by real-time PCR, followed by metagenomic shotgun sequencing of 91 specimens to identify coinfections. N. meningitidis genomes were sequenced following selective whole-genome amplification when possible. Metagenomic sequencing detected N. meningitidis in 16 of 17 specimens from culture-confirmed N. meningitidis cases, with no coinfection by other conventional urethral pathogens. Metagenomic sequencing also detected N. meningitidis in three C. trachomatis-positive specimens, one specimen positive for both N. gonorrhoeae and C. trachomatis, and nine specimens with negative N. gonorrhoeae and C. trachomatis results, eight of which had suspected Neisseria infections. N. meningitidis from culture-confirmed N. meningitidis cases belonged to the U.S. NmNG urethritis clade, while N. meningitidis identified in other specimens belonged to multiple clonal complexes. Additional urethral pathogens were predominant in non-N. meningitidis specimens, including N. gonorrhoeae, C. trachomatis, Mycoplasma genitalium, Ureaplasma urealyticum, and herpes simplex virus 2. Coinfection with other conventional urethral pathogens is rare in men with culture-confirmed U.S. NmNG urethritis clade infection and points to the strong association of this clade with disease.


Assuntos
Infecções por Chlamydia , Gonorreia , Infecções Meningocócicas , Uretrite , Chlamydia trachomatis , Humanos , Masculino , Neisseria gonorrhoeae/genética , Uretrite/diagnóstico , Uretrite/etiologia , Urina
8.
Ann Epidemiol ; 67: 50-60, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34921991

RESUMO

Purpose To estimate the prevalence of current and past COVID-19 in Ohio adults. Methods We used stratified, probability-proportionate-to-size cluster sampling. During July 2020, we enrolled 727 randomly-sampled adult English- and Spanish-speaking participants through a household survey. Participants provided nasopharyngeal swabs and blood samples to detect current and past COVID-19. We used Bayesian latent class models with multilevel regression and poststratification to calculate the adjusted prevalence of current and past COVID-19. We accounted for the potential effects of non-ignorable non-response bias. Results The estimated statewide prevalence of current COVID-19 was 0.9% (95% credible interval: 0.1%-2.0%), corresponding to ∼85,000 prevalent infections (95% credible interval: 6,300-177,000) in Ohio adults during the study period. The estimated statewide prevalence of past COVID-19 was 1.3% (95% credible interval: 0.2%-2.7%), corresponding to ∼118,000 Ohio adults (95% credible interval: 22,000-240,000). Estimates did not change meaningfully due to non-response bias. Conclusions Total COVID-19 cases in Ohio in July 2020 were approximately 3.5 times as high as diagnosed cases. The lack of broad COVID-19 screening in the United States early in the pandemic resulted in a paucity of population-representative prevalence data, limiting the ability to measure the effects of statewide control efforts.


Assuntos
COVID-19 , Adulto , Teorema de Bayes , COVID-19/epidemiologia , Humanos , Ohio/epidemiologia , Prevalência , SARS-CoV-2 , Estados Unidos
9.
Contraception ; 110: 86-92, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-34971612

RESUMO

OBJECTIVE: Despite overwhelming data supporting the safety of abortion care in the U.S., public perceptions of abortion safety vary widely. While evidence suggests that the public overestimates abortion risk, few studies have analyzed why people think abortion is safe or unsafe. STUDY DESIGN: Using data from the Ohio Survey of Women, a representative survey of women aged 18 to 44 years with a residential address in Ohio, we examined responses to 2 questions about abortion safety perceptions: the first asked respondents to rate abortion safety in Ohio, and the second asked respondents why they chose this rating of abortion safety. We analyzed these responses with inductive and deductive approaches. RESULTS: There were 2529 responses, of which 1368 (54%) provided a response to the open-ended question about abortion safety. From this subset, 529 gave open-ended responses indicating that they perceive abortion as safe, with 47% attributing this perception to the procedure being performed by a professional in a regulated environment. In contrast, 370 gave open-ended responses indicating that they perceive abortion as unsafe; the most common explanations referred to health risks (19%) and that safety depends on preexisting health conditions (19%). CONCLUSION: Many participants perceived abortion as safe because it is performed by professionals in a clinical environment or because of personal experiences with abortion. Those perceiving a lack of safety provided more varied responses, including that abortion was dangerous due to a detrimental effect on mental health or protesters at abortion clinics. IMPLICATIONS: We identified that women have a broad range of reasons for perceiving abortion as safe or unsafe. Providers should be aware of this diversity of abortion safety perceptions so that they can best engage with their patients.This updated characterization of pain experienced during an evidence-based medication abortion regimen may allow for better pain-related counseling, tailoring of opioid prescription practices, and improvement in patient satisfaction.


Assuntos
Aborto Induzido , Aborto Induzido/psicologia , Feminino , Humanos , Ohio , Dor , Satisfação do Paciente , Gravidez , Inquéritos e Questionários
10.
Clin Infect Dis ; 74(12): 2159-2165, 2022 07 06.
Artigo em Inglês | MEDLINE | ID: mdl-34543381

RESUMO

BACKGROUND: Cross-protective immunity between Neisseria meningitidis (Nm) and Neisseria gonorrhoeae (Ng) may inform gonococcal vaccine development. Meningococcal serogroup B (MenB) outer membrane vesicle (OMV) vaccines confer modest protection against gonorrhea. However, whether urethral Nm infection protects against gonorrhea is unknown. We examined gonorrhea risk among men with US Nm urethritis clade (US_NmUC) infections. METHODS: We conducted a retrospective cohort study of men with urethral US_NmUC (n = 128) between January 2015 and April 2018. Using diagnosis date as the baseline visit, we examined Ng status at return visits to compute urethral Ng risk. We compared these data to 3 referent populations: men with urethral Ng (n = 253), urethral chlamydia (Ct) (n = 251), and no urethral Ng or Ct (n = 255). We conducted sensitivity analyses to assess varied approaches to censoring, missing data, and anatomical site of infection. We also compared sequences of protein antigens in the OMV-based MenB-4C vaccine, US_NmUC, and Ng. RESULTS: Participants were primarily Black (65%) and heterosexual (82%). Over follow-up, 91 men acquired urethral Ng. Men with urethral US_NmUC had similar Ng risk to men with prior urethral Ng (adjusted hazard ratio [aHR]: 1.27; 95% CI: .65-2.48). Men with urethral US_NmUC had nonsignificantly increased Ng risk compared with men with urethral Ct (aHR: 1.51; 95% CI: .79-2.88), and significantly increased Ng risk compared with men without urethral Ng or Ct (aHR: 3.55; 95% CI: 1.27-9.91). Most of the protein antigens analyzed shared high sequence similarity. CONCLUSIONS: Urethral US_NmUC infection did not protect against gonorrhea despite substantial sequence similarities in shared protein antigens.


Assuntos
Gonorreia , Vacinas Meningocócicas , Neisseria meningitidis , Uretrite , Humanos , Masculino , Neisseria gonorrhoeae , Estudos Retrospectivos , Uretrite/epidemiologia
11.
Contraception ; 104(4): 383-387, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34038710

RESUMO

OBJECTIVES: We sought to quantify the prevalence of ever attendance at a crisis pregnancy center (CPC) among adult, reproductive-age women in Ohio and identify demographic factors associated with ever attendance. STUDY DESIGN: We analyzed data from the Ohio Survey of Women, a survey of adult, reproductive-age women (N = 2529) conducted in 2018 to 2019. We calculated unadjusted and adjusted prevalence ratios (PRs) to evaluate the possible associations between demographic factors and ever CPC attendance. Analyses used statistical weights to be population-representative. RESULTS: Analyses are based on women reporting ever (n = 291) or never CPC attendance (n = 2151). Prevalence of ever CPC attendance was 13.5%. Ever CPC attendance was higher among women of Black, non-Hispanic race/ethnicity (adjusted PR, 2.1; 95% confidence interval [CI], 1.4-3.2) and currently in the lowest socioeconomic status (SES) stratum (defined as less than a college degree and annual household income less than $75,000) (aPR, 1.6; 95% CI, 1.1-2.3) compared to those of other race/ethnicity and in the highest SES stratum. CONCLUSIONS: Disparities exist among adult women in Ohio regarding their ever use of CPCs. Because CPCs typically are not medical facilities and may provide inaccurate information, future studies should evaluate a wider range of correlates of recent CPC attendance. IMPLICATIONS: Findings from a population-based survey of adult, reproductive-age women in Ohio indicate that ever attendance to a CPC for pregnancy-related care is not rare, and this attendance is higher among Black/non-Hispanic women and those of low SES compared to other women.


Assuntos
Etnicidade , Cuidado Pré-Natal , Adulto , Feminino , Instalações de Saúde , Hispânico ou Latino , Humanos , Ohio , Gravidez
13.
BMC Public Health ; 21(1): 477, 2021 03 10.
Artigo em Inglês | MEDLINE | ID: mdl-33691667

RESUMO

BACKGROUND: Temporal discounting, the tendency of individuals to discount future costs and benefits relative to the present, is often associated with greater engagement in risky behaviors. Incentives such as conditional cash transfers (CCTs) have the potential to counter the effects of high discount rates on health behaviors. METHODS: With data from a randomized trial of a CCT intervention among 434 HIV-positive pregnant women in the Democratic Republic of Congo, we used binomial models to assess interactions between discount rates (measured using a delay-discounting task) and the intervention. The analysis focused on two outcomes: 1) retention in HIV care, and 2) uptake of prevention of mother-to-child transmission (PMTCT) services. RESULTS: The effect of high discount rates on retention was small, and we did not observe evidence of interaction between high discount rates and CCT on retention. However, our findings suggest that CCT may mitigate the negative effect of high discount rates on uptake of PMTCT services (interaction contrast (IC): 0.18, 95% CI: - 0.09, 0.44). CONCLUSIONS: Our findings provide evidence to support the continued use of small, frequent incentives, to motivate improved uptake of PMTCT services, especially among women exhibiting high rates of temporal discounting. TRIAL REGISTRATION: Clinicaltrials.gov number NCT01838005 , April 23, 2013.


Assuntos
Desvalorização pelo Atraso , Infecções por HIV , Complicações Infecciosas na Gravidez , Criança , Congo , Feminino , Infecções por HIV/prevenção & controle , Humanos , Transmissão Vertical de Doenças Infecciosas/prevenção & controle , Gravidez
15.
Am J Obstet Gynecol ; 225(1): 63.e1-63.e8, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33577763

RESUMO

BACKGROUND: Legislative and judicial procedures related to banning abortion after 6 weeks of gestation in Ohio occurred from November 2018 to July 2019. These activities could have increased the belief that abortion has become illegal even though the 6-week abortion ban has never been in effect to date. OBJECTIVE: We sought to determine the prevalence and correlates of holding the belief that abortion is illegal in Ohio and to evaluate whether this belief increased over the time in which the 6-week abortion ban was introduced, passed twice, and then blocked in Ohio. STUDY DESIGN: We analyzed data from the first wave of the Ohio Survey of Women, a population-based survey of adult, reproductive-aged Ohioan women conducted from October 2018 to June 2019. During each of the 8 survey months, a median of 240 women (range, 70-761) completed the survey, including the survey question "Based on what you know or have heard, is it legal to get an abortion in your state?" We used multivariable logistic regression to assess the prevalence and correlates of believing that abortion is illegal in the state of Ohio. In addition, we used multinomial logistic regression to evaluate whether this belief increased over the interval during which women completed the survey, which roughly corresponded to the interval marked by legislative and judicial activities surrounding the 6-week abortion ban. RESULTS: Most of the 2359 participants understood that abortion is legal in the state of Ohio (64.0%) with the remainder believing it to be illegal (9.8%) or being unsure (26.2%). Correlates of believing abortion to be illegal included younger age, lower socioeconomic status, never married or married status, and Black, non-Hispanic race and ethnicity. Being unsure about legality did not change over time; however, the proportion of women who believed that abortion is illegal increased from the first month (4.5%) to the last month (15.9%) of the study period. Each additional study month was associated with a 17% increase in the odds of believing abortion to be illegal, in both unadjusted and adjusted models (odds ratio, 1.17; 95% confidence interval, 1.08-1.27). CONCLUSION: Attempts to restrict abortion access could contribute to women mistakenly believing that abortion is illegal despite it being unsuccessful.


Assuntos
Aborto Induzido/legislação & jurisprudência , Aborto Legal/legislação & jurisprudência , Conhecimentos, Atitudes e Prática em Saúde , Adolescente , Adulto , Feminino , Idade Gestacional , Humanos , Ohio , Gravidez , Classe Social , Inquéritos e Questionários , Adulto Jovem
16.
Contraception ; 103(5): 328-335, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33607120

RESUMO

OBJECTIVES: We describe the prevalence and correlates of nonuse of preferred contraceptive method among women 18-44 years of age in Ohio using contraception. STUDY DESIGN: The population-representative Ohio Survey of Women had 2529 participants in 2018-2019, with a response rate of 33.5%. We examined prevalence of preferred method nonuse, reasons for nonuse, and satisfaction with current method among current contraception users (n = 1390). We evaluated associations between demographic and healthcare factors and preferred method nonuse. RESULTS: About 25% of women reported not using their preferred contraceptive method. The most common barrier to obtaining preferred method was affordability (13%). Those not using their preferred method identified long-acting methods (49%), oral contraception (33%), or condoms (21%) as their preferred methods. The proportion using their preferred method was highest among intrauterine device (IUD) users (86%) and lowest among emergency contraception users (64%). About 16% of women using permanent contraception reported it was not their preferred method. Having the lowest socioeconomic status (versus highest) (prevalence ratio [PR]: 1.47, 95% CI: 1.11-1.96), Hispanic ethnicity (versus non-Hispanic white) (PR: 1.83, 95% CI: 1.15-2.90), reporting poor provider satisfaction related to contraceptive care (PR: 2.33, 95% CI: 1.02-5.29), and not having a yearly women's checkup (PR: 1.31, 95% CI: 1.01-1.68) were significantly associated with nonuse of preferred method. Compared to preferred-method nonusers, higher proportions of preferred-method users reported consistent contraceptive use (89% vs. 73%, p < 0.001) and intent to continue use (79% vs. 58%, p < 0.001). CONCLUSIONS: Affordability and poor provider satisfaction related to contraceptive care were associated with nonuse of preferred contraceptive method. Those using their preferred method reported more consistent use. IMPLICATIONS: Cost is an important barrier for women in obtaining their preferred contraceptive methods. Low quality birth control care may also be a barrier to preferred-method use. Removal of cost barriers and improvement in contraceptive counseling strategies may increase access to preferred contraceptive methods.


Assuntos
Anticoncepção , Dispositivos Intrauterinos , Comportamento Contraceptivo , Serviços de Planejamento Familiar , Feminino , Humanos , Ohio
17.
Curr Opin Infect Dis ; 34(1): 34-39, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33278178

RESUMO

PURPOSE OF REVIEW: Neisseria meningitidis (Nm) is primarily associated with asymptomatic nasopharyngeal carriage and invasive meningococcal disease (sepsis and meningitis), but like N. gonorrhoea (Ng), Nm can colonize urogenital and rectal mucosal surfaces and cause disease. First noted in 2015, but with origins in 2011, male urethritis clusters caused by a novel Nm clade were reported in the USA (the US_NmUC). This review describes research developments that characterize this urogenital-tropic Nm. RECENT FINDINGS: The US_NmUC evolved from encapsulated Nm serogroup C strains. Loss of capsule expression, lipooligosaccharide (LOS) sialylation, genetic acquisition of gonococcal alleles (including the gonococcal anaerobic growth aniA/norB cassette), antimicrobial peptide heteroresistance and high surface expression of a unique factor-H-binding protein, can contribute to the urethra-tropic phenotype. Loss-of-function mutations in mtrC are overrepresented in clade isolates. Similar to Ng, repeat US_NmUC urethritis episodes can occur. The US_NmUC is now circulating in the UK and Southeast Asia. Genomic sequencing has defined the clade and rapid diagnostic tests are being developed for surveillance. SUMMARY: The US_NmUC emerged as a cause of urethritis due to acquisition of gonococcal genetic determinants and phenotypic traits that facilitate urogenital tract infection. The epidemiology and pathogenesis of this urogenital-tropic pathogen continues to be defined.


Assuntos
Doenças Transmissíveis Emergentes/microbiologia , Infecções Meningocócicas/microbiologia , Neisseria meningitidis/fisiologia , Uretrite/microbiologia , Humanos , Neisseria meningitidis/classificação , Neisseria meningitidis/genética , Neisseria meningitidis/isolamento & purificação
18.
Artigo em Inglês | MEDLINE | ID: mdl-33020165

RESUMO

The use of antiretroviral therapy (ART) as preexposure prophylaxis (PrEP) is an effective strategy for preventing HIV acquisition. The cellular consequences of PrEP exposure, however, have not been sufficiently explored to determine potential effects on health in individuals without HIV. In this study, peripheral blood mononuclear cells (PBMCs) from people without HIV were exposed to tenofovir disoproxil fumarate (TDF) or emtricitabine (FTC) overnight. Mitochondrial mass and function were measured by flow cytometry and an Agilent XFp analyzer. Monocyte-derived macrophages (MDMs) were differentiated in 20% autologous serum for 5 days in the presence or absence of TDF or FTC, and surface markers, lipid uptake, and efferocytosis were measured by flow cytometry. MDM gene expression was measured using transcriptome sequencing (RNA-seq). Plasma lipids were measured using mass spectrometry. PBMCs exposed to TDF or FTC had decreased maximal oxygen consumption rate (OCR) and reduced mitochondrial mass. Exposure to PrEP also increased reactive oxygen species (ROS) production from monocyte subsets. Compared to MDMs cultured in medium alone, cells differentiated in the presence of TDF (829 genes) or FTC (888 genes) had significant changes in gene expression. Further, PrEP-exposed MDMs had decreased mitochondrial mass and displayed increased lipid uptake and reduced efferocytosis. Plasma biomarkers and lipid levels were also altered in vivo in individuals receiving a PrEP regimen. In conclusion, exposure of leukocytes to TDF or FTC resulted in decreased mitochondrial function and altered functional and transcriptional profiles. These findings may have important implications for the metabolic and immunologic consequences of PrEP in populations at risk for HIV acquisition.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Fármacos Anti-HIV/farmacologia , Fármacos Anti-HIV/uso terapêutico , Emtricitabina/farmacologia , Emtricitabina/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Humanos , Leucócitos Mononucleares , Mitocôndrias , Transcriptoma
19.
Sex Transm Dis ; 47(4): 275-279, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32168286

RESUMO

BACKGROUND: Human papilloma virus (HPV), the causative agent for cervical cancer, can be tested for using self-collected vaginal samples. Self-collection is promising for HPV screening in hard-to-reach populations. To assess the relationship between willingness to self-collect and subsequent uptake of self-collection, we conducted a longitudinal study of reproductive-age women in rural Malawi. METHODS: At baseline, we asked women if they would be willing to self-collect a vaginal sample for HPV testing. At follow-up (12-18 months later), we offered the same women the opportunity to self-collect a sample for HPV testing. We examined unadjusted and adjusted associations between baseline willingness to self-collect a sample for HPV testing and uptake of self-collection at follow-up using log-binomial models. RESULTS: Among 122 women who, at baseline, indicated willingness to self-collect, n = 65 (53%) agreed to self-collect a sample at follow-up. Of 64 women who stated unwillingness at baseline to self-collect, n = 30 (47%) self-collected a sample for testing at follow-up. We observed no association between women's willingness at baseline and their observed self-collection decision at follow-up (unadjusted prevalence ratio, 1.14; 95% confidence interval, 0.83-1.55). The association remained null after adjustment for age, awareness of cervical cancer, and perceived behavioral control. CONCLUSIONS: Our results suggest that evaluation of acceptability of self-collection should go beyond simply asking women if they would be willing to self-collect a vaginal sample. Given that half of this study's participants agreed to self-collect a sample when the opportunity was offered, regardless of their previously stated preferences, self-collection should be offered to everyone.


Assuntos
Intenção , Programas de Rastreamento/métodos , Papillomaviridae , Infecções por Papillomavirus , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Adulto , Feminino , Humanos , Estudos Longitudinais , Malaui/epidemiologia , Infecções por Papillomavirus/diagnóstico , Infecções por Papillomavirus/prevenção & controle , Vigilância da População , População Rural , Autocuidado , Manejo de Espécimes , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/prevenção & controle
20.
J Pediatr ; 219: 263-266.e1, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32093931

RESUMO

A "reverse sequence syphilis screening" algorithm is widely used for syphilis testing. This retrospective study showed that most (65%) pregnant women with discordant screening results (treponemal multiplex flow immunoassay IgG+/rapid plasma reagin-) had a nonreactive confirmatory Treponema pallidum-particle agglutination assay, likely indicative of a false-positive reaction.


Assuntos
Complicações Infecciosas na Gravidez/diagnóstico , Sorodiagnóstico da Sífilis/métodos , Sífilis/diagnóstico , Adulto , Algoritmos , Reações Falso-Positivas , Feminino , Humanos , Gravidez , Estudos Retrospectivos , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA