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1.
Open Forum Infect Dis ; 10(11): ofad552, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-38023539

RESUMEN

Background: The 2022 global mpox outbreak was notable for transmission between persons outside of travel and zoonotic exposures and primarily through intimate contact. An understanding of the presentation of mpox in people with human immunodeficiency virus (HIV) and other immunocompromising conditions and knowledge of the efficacy of tecovirimat continue to evolve. Methods: This retrospective study describes clinical features and outcomes of persons with mpox who received tecovirimat. Data were obtained via medical record review of patients prescribed tecovirimat in a health system in New York City during the height of the outbreak in 2022. Results: One hundred thirty people received tecovirimat between 1 July and 1 October 2022. People with HIV (n = 80) experienced similar rates of recovery, bacterial superinfections, and hospitalization compared to patients without immunocompromising conditions. Individuals determined to be severely immunocompromised (n = 14) had a higher risk of hospitalization than those without severe immunocompromise (cohort inclusive of those with well-controlled HIV, excluding those without virologic suppression, n = 101): 50% versus 9% (P < .001). Hospitalized patients (n = 18 [13% of total]) were primarily admitted for bacterial superinfections (44.4%), with a median hospital stay of 4 days. Of those who completed follow-up (n = 85 [66%]), 97% had recovery of lesions at time of posttreatment assessment. Tecovirimat was well tolerated; there were no reported severe adverse events attributed to therapy. Conclusions: There were no significant differences in outcomes between people with HIV when evaluated as a whole and patients without immunocompromising conditions. However, mpox infection was associated with higher rates of hospitalization in those with severe immunocompromise, including patients with HIV/AIDS. Treatment with tecovirimat was well tolerated.Key Points: In our mpox cohort, people with HIV had similar rates of recovery and complications as those without HIV or other immunocompromising conditions. Severe immunocompromise was associated with a higher hospitalization rate. Tecovirimat was well tolerated, with minimal side effects.

2.
J Infect Dis ; 227(4): 488-497, 2023 02 14.
Artículo en Inglés | MEDLINE | ID: mdl-35325151

RESUMEN

BACKGROUND: Age-specific data on anal, and corresponding cervical, human papillomavirus (HPV) infection are needed to inform female anal cancer prevention. METHODS: We centrally reanalyzed individual-level data from 26 studies reporting HPV prevalence in paired anal and cervical samples by human immunodeficiency virus (HIV) status and age. For women with HIV (WWH) with anal high-grade squamous intraepithelial lesions or worse (HSIL+), we also investigated concurrent cervical cytopathology. RESULTS: In HIV-negative women, HPV16 prevalence decreased significantly with age, both at anus (4.3% at 15-24 years to 1.0% at ≥55 years; ptrend = 0.0026) and cervix (7.4% to 1.7%; ptrend < 0.0001). In WWH, HPV16 prevalence decreased with age at cervix (18.3% to 7.2%; ptrend = 0.0035) but not anus (11.5% to 13.9%; ptrend = 0.5412). Given anal HPV16 positivity, concurrent cervical HPV16 positivity also decreased with age, both in HIV-negative women (ptrend = 0.0005) and WWH (ptrend = 0.0166). Among 48 WWH with HPV16-positive anal HSIL+, 27 (56%) were cervical high-risk HPV-positive, including 8 with cervical HPV16, and 5 were cervical HSIL+. CONCLUSIONS: Age-specific shifts in HPV16 prevalence from cervix to anus suggest that HPV infections in the anus persist longer, or occur later in life, than in the cervix, particularly in WWH. This is an important consideration when assessing the utility of cervical screening results to stratify anal cancer risk.


Asunto(s)
Neoplasias del Ano , Infecciones por VIH , Infecciones por Papillomavirus , Lesiones Intraepiteliales Escamosas , Neoplasias del Cuello Uterino , Humanos , Femenino , Adolescente , Adulto Joven , Adulto , Cuello del Útero/patología , Virus del Papiloma Humano , Prevalencia , Detección Precoz del Cáncer , Neoplasias del Cuello Uterino/epidemiología , Canal Anal , Neoplasias del Ano/diagnóstico , Papillomavirus Humano 16 , Papillomaviridae/genética , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , VIH , Factores de Edad
3.
J Infect Dis ; 223(6): 957-970, 2021 03 29.
Artículo en Inglés | MEDLINE | ID: mdl-33367897

RESUMEN

BACKGROUND: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has infected millions of people globally. Virus infection requires the receptor-binding domain (RBD) of the spike protein. Although studies have demonstrated anti-spike and -RBD antibodies to be protective in animal models, and convalescent plasma as a promising therapeutic option, little is known about immunoglobulin isotypes capable of blocking infection. METHODS: We studied spike- and RBD-specific immunoglobulin isotypes in convalescent and acute plasma/serum samples using a multiplex bead assay. We also determined virus neutralization activities in plasma and serum samples, and purified immunoglobulin fractions using a vesicular stomatitis pseudovirus assay. RESULTS: Spike- and RBD-specific immunoglobulin (Ig) M, IgG1, and IgA1 were produced by all or nearly all subjects at variable levels and detected early after infection. All samples displayed neutralizing activity. Regression analyses revealed that IgM and IgG1 contributed most to neutralization, consistent with IgM and IgG fractions' neutralization potency. IgA also exhibited neutralizing activity, but with lower potency. CONCLUSION: IgG, IgM, and IgA are critical components of convalescent plasma used for treatment of coronavirus disease 2019 (COVID-19).


Asunto(s)
Anticuerpos Neutralizantes/sangre , Anticuerpos Antivirales/sangre , COVID-19/inmunología , COVID-19/terapia , Inmunoglobulina A/sangre , Inmunoglobulina M/sangre , SARS-CoV-2/inmunología , Anticuerpos Antivirales/inmunología , COVID-19/diagnóstico , Prueba de COVID-19 , Femenino , Humanos , Inmunización Pasiva , Inmunoglobulina A/uso terapéutico , Inmunoglobulina G/sangre , Inmunoglobulina G/uso terapéutico , Isotipos de Inmunoglobulinas/sangre , Isotipos de Inmunoglobulinas/uso terapéutico , Inmunoglobulina M/uso terapéutico , Masculino , Pruebas de Neutralización , Glicoproteína de la Espiga del Coronavirus/inmunología , Sueroterapia para COVID-19
4.
medRxiv ; 2020 Dec 21.
Artículo en Inglés | MEDLINE | ID: mdl-33173891

RESUMEN

BACKGROUND: SARS-CoV-2 has infected millions of people globally. Virus infection requires the receptor-binding domain (RBD) of the spike protein. Although studies have demonstrated anti-spike and - RBD antibodies to be protective in animal models, and convalescent plasma as a promising therapeutic option, little is known about immunoglobulin (Ig) isotypes capable of blocking infection. METHODS: We studied spike- and RBD-specific Ig isotypes in convalescent and acute plasma/sera using a multiplex bead assay. We also determined virus neutralization activities in plasma, sera, and purified Ig fractions using a VSV pseudovirus assay. RESULTS: Spike- and RBD-specific IgM, IgG1, and IgA1 were produced by all or nearly all subjects at variable levels and detected early after infection. All samples displayed neutralizing activity. Regression analyses revealed that IgM and IgG1 contributed most to neutralization, consistent with IgM and IgG fractions' neutralization potency. IgA also exhibited neutralizing activity, but with lower potency. CONCLUSION: IgG, IgM and IgA are critical components of convalescent plasma used for COVID-19 treatment.

5.
AIDS Res Hum Retroviruses ; 36(12): 1059-1070, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32988214

RESUMEN

Users' sensory perceptions and experiences (USPEs; perceptibility) of drug formulations can critically impact product adoption and adherence, especially when products rely on appropriate user behaviors (timing of administration, dosing measurement) for effectiveness. The use of topical gel formulations for effective antihuman immunodeficiency virus/sexually transmitted infection (HIV/STI) vaginal microbicides has been associated with messiness and other use-associated challenges, resulting in low adherence. Nonetheless, such formulations remain attractive due to good pharmacokinetics and resulting pharmacodynamics through their volume and surface contact for drug delivery into luminal fluids and mucosa. Consequently, advocates and scientists continue to pursue topical forms [semisolid (e.g., gel, suppository); solid (e.g., film)] to deliver select drugs and offer user choice in HIV/STI prevention. The current data build on previously validated USPE scales evaluating perceptibility of gels with various biophysical/rheological properties. Specifically, increased formulation parameter space adds a new set of properties inherent in quick-dissolving film. We compared film, a product adding no discernable volume to the vaginal environment, to 2 and 3.5 mL hydroxyethyl cellulose gel to consider the impact of volume on user experience. We also examined the USPE scales for evaluation of male sexual partners' experiences. The original USPE scales functioned as expected. Additionally, six new USPE scales were identified in this enhanced parameter space. Significant differences were noted between USPEs in pairwise comparisons, with largest differences between film and high-volume gel. Product developers and behavioral scientists can use these scales to design products, optimizing user experience and maximizing adherence and delivery of efficacious anti-HIV/STI pharmaceuticals. They can be extended to evaluation of additional formulations, devices, and compartments, as well as single- and multipurpose pharmaceuticals. In broader contexts, USPEs could be of value in evaluating formulations and devices to prevent/treat other diseases (e.g., ophthalmologic, dermatologic). Steadfast attention should be given to patient experience, and, where applicable, experiences of partners and/or caregivers.


Asunto(s)
Infecciones por VIH , Enfermedades de Transmisión Sexual , Administración Intravaginal , Femenino , Heterosexualidad , Humanos , Masculino , Percepción , Reproducibilidad de los Resultados , Sensación , Vagina , Cremas, Espumas y Geles Vaginales
6.
J Infect Dis ; 222(10): 1629-1634, 2020 10 13.
Artículo en Inglés | MEDLINE | ID: mdl-32860510

RESUMEN

More than 24 million infections with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) were confirmed globally by September 2020. While polymerase chain reaction-based assays are used for diagnosis, there is a need for high-throughput, rapid serologic methods. A Luminex binding assay was developed and used to assess simultaneously the presence of coronavirus disease 2019 (COVID-19)-specific antibodies in human serum and plasma. Clear differentiation was achieved between specimens from infected and uninfected subjects, and a wide range of serum/plasma antibody levels was delineated in infected subjects. All 25 specimens from 18 patients with COVID-19 were positive in the assays with both the trimeric spike and the receptor-binding domain proteins. None of the 13 specimens from uninfected subjects displayed antibodies to either antigen. There was a highly statistically significant difference between the antibody levels of COVID-19-infected and -uninfected specimens (P < .0001). This high-throughput antibody assay is accurate, requires only 2.5 hours, and uses 5 ng of antigen per test.


Asunto(s)
Anticuerpos Antivirales/sangre , Betacoronavirus/inmunología , Técnicas de Laboratorio Clínico/métodos , Infecciones por Coronavirus/diagnóstico , Ensayo de Inmunoadsorción Enzimática/métodos , Ensayos Analíticos de Alto Rendimiento/métodos , Neumonía Viral/diagnóstico , Glicoproteína de la Espiga del Coronavirus/inmunología , Betacoronavirus/genética , COVID-19 , Prueba de COVID-19 , Infecciones por Coronavirus/virología , Exactitud de los Datos , Humanos , Estudios Longitudinales , Pandemias , Neumonía Viral/virología , Reacción en Cadena de la Polimerasa , Dominios Proteicos/inmunología , Proteínas Recombinantes/inmunología , SARS-CoV-2
7.
medRxiv ; 2020 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-32511441

RESUMEN

SARS-Cov-2 (severe acute respiratory disease coronavirus 2), which causes Coronavirus Disease 2019 (COVID19) was first detected in China in late 2019 and has since then caused a global pandemic. While molecular assays to directly detect the viral genetic material are available for the diagnosis of acute infection, we currently lack serological assays suitable to specifically detect SARS-CoV-2 antibodies. Here we describe serological enzyme-linked immunosorbent assays (ELISA) that we developed using recombinant antigens derived from the spike protein of SARS-CoV-2. Using negative control samples representing pre-COVID 19 background immunity in the general adult population as well as samples from COVID19 patients, we demonstrate that these assays are sensitive and specific, allowing for screening and identification of COVID19 seroconverters using human plasma/serum as early as two days post COVID19 symptoms onset. Importantly, these assays do not require handling of infectious virus, can be adjusted to detect different antibody types and are amendable to scaling. Such serological assays are of critical importance to determine seroprevalence in a given population, define previous exposure and identify highly reactive human donors for the generation of convalescent serum as therapeutic. Sensitive and specific identification of coronavirus SARS-Cov-2 antibody titers may, in the future, also support screening of health care workers to identify those who are already immune and can be deployed to care for infected patients minimizing the risk of viral spread to colleagues and other patients.

8.
medRxiv ; 2020 Apr 17.
Artículo en Inglés | MEDLINE | ID: mdl-32511609

RESUMEN

BACKGROUND: More than one million infections with the severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) have been confirmed. While PCR-based assays are used for diagnosis, high through-put serologic methods are needed to detect antibodies for seroserveillance and for identification of seroconversion, potential plasma donors, and the nature of the immune response to this pathogen. METHODS: A Luminex binding assay was used to assess the presence of antibodies in human sera from COVID-19-infected and -uninfected individuals specific for two recombinant proteins of SARS-CoV-2. FINDINGS: Fluorochrome-labeled beads were coated with a recombinant soluble stabilized trimeric SARS-CoV-2 S protein ectodomain or its central portion, the receptor binding domain (RBD). Coated beads were incubated with sera, followed by incubation with biotinylated anti-human total Ig antibodies and phycoerythrin (PE)-labeled streptavidin. Readout using a Luminex analyzer clearly differentiated between sera of the infected and uninfected subject, delineating a wide range of serum antibody levels in infected subjects. INTERPRETATION: Antibody assays of sera can identify individuals who are infected with SARS-CoV-2 and have seroconverted, as well as subjects who have been infected and recovered. The use of the Luminex binding Ab assay has the advantage that it can be run in approximately 2.5 hours, uses very little antigen, and permits a high through-put of samples/day. FUNDING: NIAID contracts and grants, Department of Veterans Affairs grants, the Microbiology Laboratory Clinical Services, Translational Science Hub, and Personalized Virology Initiative, and Department of Medicine of Mount Sinai Health System and Icahn School of Medicine at Mount Sinai.

9.
Nat Med ; 26(7): 1033-1036, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32398876

RESUMEN

Here, we describe a serological enzyme-linked immunosorbent assay for the screening and identification of human SARS-CoV-2 seroconverters. This assay does not require the handling of infectious virus, can be adjusted to detect different antibody types in serum and plasma and is amenable to scaling. Serological assays are of critical importance to help define previous exposure to SARS-CoV-2 in populations, identify highly reactive human donors for convalescent plasma therapy and investigate correlates of protection.


Asunto(s)
Betacoronavirus/inmunología , Técnicas de Laboratorio Clínico/métodos , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/inmunología , Neumonía Viral/diagnóstico , Neumonía Viral/inmunología , Seroconversión , Adulto , Betacoronavirus/patogenicidad , COVID-19 , Prueba de COVID-19 , Estudios de Casos y Controles , Infecciones por Coronavirus/sangre , Infecciones por Coronavirus/terapia , Infecciones por Coronavirus/virología , Electroforesis en Gel de Poliacrilamida , Ensayo de Inmunoadsorción Enzimática , Humanos , Inmunización Pasiva , Estudios Longitudinales , Persona de Mediana Edad , Pruebas de Neutralización , Pandemias , Neumonía Viral/terapia , Neumonía Viral/virología , SARS-CoV-2 , Adulto Joven , Sueroterapia para COVID-19
10.
J Infect Dis ; 222(2): 234-242, 2020 06 29.
Artículo en Inglés | MEDLINE | ID: mdl-31536120

RESUMEN

BACKGROUND: High-risk anal human papillomavirus (HPV) infection is prevalent among men living with human immunodeficiency virus (HIV); the association between 9-valent (9v) high-risk HPV (HR-HPV) vaccine types and abnormal cytology has not been well characterized. METHODS: We followed a prospective cohort study of persons with HIV at 7 HIV clinics in 4 US cities from March 2004 through June 2012. Annually, providers collected separate anal swabs for HPV detection and cytopathologic examination. Among men, we examined prevalence, incidence, and clearance of 9v HR-HPV vaccine types, compared with other HR types, and associations with abnormal cytology to assess potential vaccine impact. RESULTS: Baseline prevalence of any anal 9v HR-HPV type among men who have sex with men (MSM) and men who have sex with women (MSW) was 74% and 25% (P < .001), respectively. Among 299 MSM, abnormal cytology was detected in 161 (54%) MSM and was associated with the presence of any 9v HR-HPV (relative risk [RR], 1.8 [95% confidence interval {CI}, 1.3-2.6]; P < .001). Among 61 MSW, abnormal anal cytology was detected in 12 (20%) and was associated with the presence of any 9v HR-HPV (RR, 4.3 [95% CI, 1.6-11.5]; P < .001). CONCLUSIONS: Among men with HIV, the prevalence of the 7 HR-HPV types in the 9v vaccine was high and was associated with abnormal cytology. These findings indicate that men with HIV could benefit from prophylactic administration of the 9v HPV vaccine.


Asunto(s)
Alphapapillomavirus/inmunología , Infecciones por VIH/complicaciones , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/epidemiología , Vacunas contra Papillomavirus , Adulto , Alphapapillomavirus/aislamiento & purificación , Canal Anal/virología , Enfermedades del Ano/complicaciones , Enfermedades del Ano/epidemiología , Enfermedades del Ano/patología , Enfermedades del Ano/virología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/prevención & control , Prevalencia , Estudios Prospectivos , Minorías Sexuales y de Género
11.
Lancet Infect Dis ; 19(8): 880-891, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31204304

RESUMEN

BACKGROUND: Cervical cancer screening might contribute to the prevention of anal cancer in women. We aimed to investigate if routine cervical cancer screening results-namely high-risk human papillomavirus (HPV) infection and cytohistopathology-predict anal HPV16 infection, anal high-grade squamous intraepithelial lesions (HSIL) and, hence, anal cancer. METHODS: We did a systematic review of MEDLINE, Embase, and the Cochrane library for studies of cervical determinants of anal HPV and HSIL published up to Aug 31, 2018. We centrally reanalysed individual-level data from 13 427 women with paired cervical and anal samples from 36 studies. We compared anal high-risk HPV prevalence by HIV status, cervical high-risk HPV, cervical cytohistopathology, age, and their combinations, using prevalence ratios (PR) and 95% CIs. Among 3255 women with anal cytohistopathology results, PRs were similarly calculated for all anal HSIL and HPV16-positive anal HSIL. FINDINGS: Cervical and anal HPV infections were highly correlated. In HIV-negative women, anal HPV16 prevalence was 41% (447/1097) in cervical HPV16-positive versus 2% (214/8663) in cervical HPV16-negative women (PR 16·5, 95% CI 14·2-19·2, p<0·0001); these values were 46% (125/273) versus 11% (272/2588) in HIV-positive women (4·4, 3·7-5·3, p<0·0001). Anal HPV16 was also associated with cervical cytohistopathology, with a prevalence of 44% [101/228] for cervical cancer in HIV-negative women (PR vs normal cytology 14·1, 11·1-17·9, p<0·0001). Anal HSIL was associated with cervical high-risk HPV, both in HIV-negative women (from 2% [11/527] in cervical high-risk HPV-negative women up to 24% [33/138] in cervical HPV16-positive women; PR 12·9, 95% CI 6·7-24·8, p<0·0001) and HIV-positive women (from 8% [84/1094] to 17% [31/186]; 2·3, 1·6-3·4, p<0·0001). Anal HSIL was also associated with cervical cytohistopathology, both in HIV-negative women (from 1% [5/498] in normal cytology up to 22% [59/273] in cervical HSIL; PR 23·1, 9·4-57·0, p<0·0001) and HIV-positive women (from 7% [105/1421] to 25% [25/101]; 3·6, 2·5-5·3, p<0·0001). Prevalence of HPV16-positive anal HSIL was 23-25% in cervical HPV16-positive women older than 45 years (5/20 in HIV-negative women, 12/52 in HIV-positive women). INTERPRETATION: HPV-based cervical cancer screening programmes might help to stratify anal cancer risk, irrespective of HIV status. For targeted secondary anal cancer prevention in high-risk groups, HIV-negative women with cervical HPV16, especially those older than 45 years, have a similar anal cancer risk profile to that of HIV-positive women. FUNDING: International Agency for Research on Cancer.


Asunto(s)
Neoplasias del Ano/diagnóstico , Detección Precoz del Cáncer , Infecciones por Papillomavirus/diagnóstico , Infecciones por Papillomavirus/epidemiología , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Ano/virología , Femenino , Salud Global , Seropositividad para VIH , Papillomavirus Humano 16/aislamiento & purificación , Humanos , Infecciones por Papillomavirus/virología , Prevalencia , Neoplasias del Cuello Uterino/virología
12.
Papillomavirus Res ; 6: 15-21, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30118852

RESUMEN

OBJECTIVES: People living with HIV have increased Human Papillomavirus (HPV) related lesions and malignancies. We describe HPV DNA recovered from the cervix and anal canal, explore the effect of vaccination on HPV detection, and examine the durability of vaccine titers in women living with HIV-1 who were vaccinated with the quadrivalent HPV vaccine. METHODS: AIDS Clinical Trials Group A5240 was a prospective study of the quadrivalent HPV (qHPV) vaccine in 315 HIV-1 infected women in three CD4 strata (A: >350, B; 201-350, C: ≤200 cells/mm3). Vaccine was administered at entry, week 8 and week 24. Cervical and anal HPV DNA specimens were collected at baseline, weeks 28 and 52; serum for antibody testing was obtained at baseline, weeks 28 and 72. RESULTS: Vaccine antibody titers decreased across all four HPV types at week 72 compared to week 28. Lower proportions of sustained seropositivity were observed in women with lower CD4 counts for all four vaccine types, with the lowest titers for HPV 18. Despite the decrease, the geometric mean titer levels were above the seroconversion cut-off levels for all types except HPV 18 in the lowest CD4 stratum. Of the 174 participants who had a negative baseline HPV 16 antibody and developed antibody response at week 28, 95%, 88%, and 86% retained seropositivity at week 72 in strata A, B, and C respectively. Lower antibody retention was observed in women with CD4 < 200 compared to CD4 > 350 (p = 0.016). Anal HPV detection was more prevalent compared to cervical detection at all visits. Among high risk types, type 52, 31, 16, 18 and 51 were the most common in the cervical compartment, while types 16, 35, 18, and 51 were the most prevalent in the anal canal at baseline (listed in the order of prevalence). Later detection of HPV not present at baseline was uncommon in either compartment. Serial recovery of HPV over time was more commonly observed in the anal canal. CONCLUSION: The qHPV vaccine elicits durable titer response above the seroconversion cut-off levels in HIV-infected women. However, the titer levels were substantially lower by Week 72, most noticeably in type 18. HPV DNA was detected more frequently in the anal canal. Detection of non-vaccine high risk HPV suggests a role for the nonavalent vaccine.


Asunto(s)
Canal Anal/virología , Cuello del Útero/virología , ADN Viral/análisis , Infecciones por VIH/complicaciones , Vacuna Tetravalente Recombinante contra el Virus del Papiloma Humano Tipos 6, 11 , 16, 18/inmunología , Infecciones por Papillomavirus/inmunología , Infecciones por Papillomavirus/prevención & control , Adolescente , Adulto , Anticuerpos Neutralizantes/sangre , Anticuerpos Antivirales/sangre , ADN Viral/genética , Femenino , Infecciones por VIH/inmunología , Vacuna Tetravalente Recombinante contra el Virus del Papiloma Humano Tipos 6, 11 , 16, 18/administración & dosificación , Humanos , Memoria Inmunológica , Infecciones por Papillomavirus/epidemiología , Prevalencia , Estudios Prospectivos , Adulto Joven
13.
J Infect Dis ; 217(10): 1544-1552, 2018 04 23.
Artículo en Inglés | MEDLINE | ID: mdl-29452366

RESUMEN

Background: Nonavalent (9v) human papilloma virus vaccine targets high-risk human papillomavirus (HR-HPV) types 16, 18, 31, 33, 45, 52, 58, and low-risk 6, 11. We examined prevalence, incidence, and clearance of anal and cervical HR-HPV in HIV-infected women. Methods: The SUN Study enrolled 167 US women in 2004-2006. Anal and cervical specimens were collected annually for cytology and identification of 37 HPV types: 14 HR included: 9v 16, 18, 31, 33, 45, 52, 58; non-9v 35, 39, 51, 56, 59, 66, 68. Results: Baseline characteristics of 126 women included: median age 38 years; 57% non-Hispanic black; 67% HIV RNA < 400 copies/mL; 90% CD4 counts ≥200 cells/mm3. HPV prevalence at anus and cervix was 90% and 83%; for 9v HR-HPV types, 67% and 51%; non-9v HR-HPV, 54% and 29%, respectively. The 9v and non-9v HR-HPV incidence rates/100 person-years were similar (10.4 vs 9.5; 8.5 vs 8.3, respectively); 9v clearance rates were 42% and 61%; non-9v 46% and 59%, in anus and cervix, respectively. Conclusions: Anal HR-HPV prevalence was higher than cervical, with lower clearance; incidence was similar. Although prevalence of non-9v HR-HPV was substantial, 9v HR-HPV types were generally more prevalent. These findings support use of nonavalent vaccine in HIV-infected women.


Asunto(s)
Canal Anal/virología , Cuello del Útero/virología , Infecciones por VIH/virología , Papillomaviridae/inmunología , Infecciones por Papillomavirus/inmunología , Vacunas contra Papillomavirus/inmunología , Adulto , Femenino , Genotipo , VIH/patogenicidad , Infecciones por VIH/inmunología , Humanos , Incidencia , Infecciones por Papillomavirus/virología , Prevalencia , Estudios Prospectivos , Factores de Riesgo
14.
J Infect Dis ; 217(6): 953-963, 2018 03 05.
Artículo en Inglés | MEDLINE | ID: mdl-29211874

RESUMEN

Background: The natural history of anal human papilloma virus (HPV) infection among human immunodeficiency virus (HIV)-infected men is unknown. Methods: Annually, from 2004 to 2012, we examined baseline prevalence, incidence, and clearance of anal HPV infection at 48 months, and associated factors among HIV-infected men. Results: We examined 403 men who have sex with men (MSM) and 96 men who have sex with women (MSW) (median age 42 years for both, 78% versus 81% prescribed cART, median CD4+ T-lymphocyte cell count 454 versus 379 cells/mm3, and 74% versus 75% had undetectable viral load, respectively). Type 16 prevalence among MSM and MSW was 38% versus 14% (P < .001), and incidence 24% versus 7% (P = .001). Type 18 prevalence was 24% versus 8% (P < .001), and incidence 13% versus 4% (P = .027). Among MSM and MSW, clearance of prevalent HPV 16 and HPV 18 was 31% and 60% (P = .392), and 47% and 25% (P = .297), respectively. Among MSM, receptive anal sex (with or without a condom) was associated with persistent HPV 16 (OR 2.24, P < .001). Conclusions: MSM had higher prevalence and incidence of HPV than MSW, but similar clearance. Receptive anal sex may predict cancer risk among HIV-infected MSM.


Asunto(s)
Enfermedades del Ano/virología , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Infecciones por Papillomavirus/complicaciones , Infecciones por Papillomavirus/epidemiología , Adulto , Enfermedades del Ano/patología , Homosexualidad Masculina , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Prevalencia , Factores de Riesgo , Estados Unidos/epidemiología , Carga Viral
15.
Drug Deliv Transl Res ; 7(5): 761-770, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28653286

RESUMEN

The development of HIV-preventive topical vaginal microbicides has been challenged by a lack of sufficient adherence in later stage clinical trials to confidently evaluate effectiveness. This dilemma has highlighted the need to integrate translational research earlier in the drug development process, essentially applying behavioral science to facilitate the advances of basic science with respect to the uptake and use of biomedical prevention technologies. In the last several years, there has been an increasing recognition that the user experience, specifically the sensory experience, as well as the role of meaning-making elicited by those sensations, may play a more substantive role than previously thought. Importantly, the role of the user-their sensory perceptions, their judgements of those experiences, and their willingness to use a product-is critical in product uptake and consistent use post-marketing, ultimately realizing gains in global public health. Specifically, a successful prevention product requires an efficacious drug, an efficient drug delivery system, and an effective user. We present an integrated iterative drug development and user experience evaluation method to illustrate how user-centered formulation design can be iterated from the early stages of preclinical development to leverage the user experience. Integrating the user and their product experiences into the formulation design process may help optimize both the efficiency of drug delivery and the effectiveness of the user.


Asunto(s)
Antivirales/administración & dosificación , Descubrimiento de Drogas/métodos , Infecciones por VIH/prevención & control , Administración Intravaginal , Administración Tópica , Adulto , Antivirales/uso terapéutico , Ciencias de la Conducta , Sistemas de Liberación de Medicamentos , Femenino , Humanos , Investigación Biomédica Traslacional , Adulto Joven
16.
PLoS One ; 12(5): e0175517, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28464004

RESUMEN

BACKGROUND: Immune activation plays a key role in HIV pathogenesis. Markers of inflammation have been associated with vitamin D deficiency in the general population. Studies have also demonstrated associations of vitamin D deficiency with increased risk of HIV progression and death. The relationship between persistent inflammation and immune activation during chronic HIV infection and vitamin D deficiency remains unclear. METHODS: Cryopreserved specimens were analyzed from 663 participants at the time of enrollment from the Study to Understand the Natural History of HIV/AIDS in the Era of Effective Therapy (SUN Study) from 2004 to 2006. Biomarkers of inflammation, atherosclerosis, and coagulation were measured using enzyme-linked immunosorbent assays (ELISAs) and electrochemiluminescence. 25(OH)D, the stable precursor form of vitamin D, was measured using a radioimmunoassay with levels defined as: normal (≥30ng/mL), insufficient (20-29 ng/mL) and deficient (<20 ng/mL). Monocyte phenotypes were assessed by flow cytometry. Linear and logistic regression models were used to determine statistical associations between biomarkers and vitamin D deficiency. RESULTS: 25(OH)D levels were deficient in 251 (38%) participants, insufficient in 222 (34%), and normal in 190 (29%). Patients with vitamin D deficiency, when compared to those with insufficient or normal vitamin D levels, had increased levels of IL-6 (23%; p<0.01), TNF-α (21%, p = 0.03), D-dimer (24%, p = 0.01), higher proportions of CD14dimCD16+ (22%, p<0.01) and CX3CR1+ monocytes (48%; p<0.001) and decreased frequency of CCR2+ monocytes (-3.4%, p<0.001). In fully adjusted models, vitamin D associations with abnormal biomarker levels persisted for IL-6 levels and CX3CR1+ and CCR2+ phenotypes. CONCLUSIONS: Vitamin D deficiency is associated with greater inflammation and activated monocyte phenotypes. The role of vitamin D deficiency in persistent immune activation and associated complications during chronic HIV disease should be further evaluated as a possible target for intervention.


Asunto(s)
Infecciones por VIH/complicaciones , Interleucina-6/sangre , Monocitos/fisiología , Deficiencia de Vitamina D/complicaciones , Adulto , Biomarcadores/sangre , Femenino , Infecciones por VIH/inmunología , Humanos , Hidroxicolecalciferoles/sangre , Masculino , Vitamina D/sangre , Deficiencia de Vitamina D/inmunología
17.
J Am Geriatr Soc ; 65(8): 1733-1740, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28306141

RESUMEN

BACKGROUND: Advanced age, history of hospitalization, and antibiotic consumption are associated with the pathogenesis of Clostridium difficile infection (CDI). Long-term care facilities (LTCFs) represent a setting where CDI has been increasingly reported. We aimed to estimate the actual attributable burden of CDI to LTCF stay and determine the characteristics of the disease epidemiology in this setting. DESIGN: IRB-approved retrospective cohort study. SETTING: LTCF and community. PARTICIPANTS: One thousand seven hundred and sixty-one patients. MEASUREMENTS/RESULTS: The prevalence of CDI among LTCF residents was 22.4%, whereas the prevalence of CDI among community residents was 6.7% (P < .001). The prevalence of CDI among LTCF residents was significantly higher in both the 18-64 (P < .001) and the ≥65 age groups (P < .010). Measures of hospital exposure and antibiotic consumption between LTCF and community residents prior to CDI diagnosis were non-significant. A strict matching (1:2) between LTCF and community residents adjusting for age, total number of hospital admissions and antibiotic consumption showed that the odds of CDI for an LTCF resident were 6.89 times larger than the odds for a community resident (OR = 6.89, 95%, 4.67-10.17). For an LTCF resident with CDI, the odds of manifesting severe disease were 3.25 times larger than the odds for a community resident with CDI (OR = 3.25, 95%, 1.81-5.86). LTCF residents were more frequently hospitalized (P = .002) required longer hospital stays for their CDI management (P = .03) and had more recurrent CDI cases than community residents (P = .04). CONCLUSIONS: Our study highlights the increased burden of CDI among LTCF residents independently of age, antibiotic, and hospitalization background. Severe CDI disease and recurrences are more frequent in LTCFs.


Asunto(s)
Clostridioides difficile/aislamiento & purificación , Infecciones por Clostridium/epidemiología , Cuidados a Largo Plazo/estadística & datos numéricos , Casas de Salud/estadística & datos numéricos , Anciano , Infecciones por Clostridium/diagnóstico , Hospitalización/estadística & datos numéricos , Humanos , Vida Independiente/estadística & datos numéricos , Tiempo de Internación/estadística & datos numéricos , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Índice de Severidad de la Enfermedad
18.
AIDS Behav ; 21(7): 1825-1835, 2017 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27392417

RESUMEN

In a cohort of patients receiving care for HIV, we examined longitudinally the impact of past 30-day frequency of heavy drinking (consuming 5+ drinks on one occasion) on HIV-related (detectable viral load and CD4+ T cell count) and non-HIV-related (hemoglobin and biomarkers of kidney function and liver fibrosis) clinical outcomes and the extent to which these effects were due to reduced antiretroviral therapy (ART) adherence. Data came from the Study to Understand the Natural History of HIV/AIDS in the Era of Effective Therapy. Between March 2004 and June 2006, 533 individuals receiving ART were recruited and followed every 6 months for six years. Using longitudinal mediation analysis, we estimated natural direct effects (NDE) of heavy drinking frequency (never, 1-3 times, or 4+ times in the past 30 days) on clinical outcomes and natural indirect effects (NIE) mediated via ART adherence. A one-level increase in heavy drinking frequency had a significant negative NDE on CD4+ T-cell counts (-10.61 cells/mm3; 95 % CI [-17.10, -4.12]) and a significant NIE through reduced ART adherence of -0.72 cells/mm3 (95 % CI [-1.28, -0.15]), as well as a significant NIE on risk of detectable viral load (risk ratio = 1.03; 95 % CI [1.00, 1.05]). Heavy drinking had a significant detrimental NIE on a combined index of 5-year mortality risk and detrimental NDE and total effect on a biomarker of liver fibrosis. Heavy drinking has deleterious effects on multiple clinical outcomes in people living with HIV, some of which are mediated through reduced ART adherence.


Asunto(s)
Consumo de Bebidas Alcohólicas/epidemiología , Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Adulto , Anciano , Consumo de Bebidas Alcohólicas/inmunología , Consumo de Bebidas Alcohólicas/metabolismo , Biomarcadores , Recuento de Linfocito CD4 , Linfocitos T CD4-Positivos , Femenino , Tasa de Filtración Glomerular , Infecciones por VIH/inmunología , Infecciones por VIH/metabolismo , Infecciones por VIH/virología , Hemoglobinas/metabolismo , Humanos , Pruebas de Función Renal , Pruebas de Función Hepática , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Carga Viral , Adulto Joven
19.
Lancet HIV ; 3(11): e529-e538, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27658881

RESUMEN

BACKGROUND: Depression is highly prevalent in people with HIV and has consistently been associated with poor antiretroviral therapy (ART) adherence. Integrating cognitive behavioural therapy (CBT) for depression with adherence counselling using the Life-Steps approach (CBT-AD) has an emerging evidence base. The aim of this study was to test the efficacy of CBT-AD. METHODS: In this three-arm randomised controlled trial in HIV-positive adults with depression, we compared CBT-AD with information and supportive psychotherapy plus adherence counselling using the Life-Steps approach (ISP-AD), and with enhanced treatment as usual (ETAU) including Life-Steps adherence counselling only. Participants were recruited from three sites in New England, USA (two hospital settings and one community health centre). Patients were randomly assigned (2:2:1) to receive CBT-AD (one Life-Steps session plus 11 weekly integrated sessions lasting up to 1 h each), ISP-AD (one Life-Steps session plus 11 weekly integrated sessions lasting up to 1 h each), or ETAU (one Life-Steps session and five assessment visits roughly every 2 weeks), randomisation was done with allocation software, in pairs, and stratified by three variables: study site, whether or not participants had been prescribed antidepressant medication, and whether or not participants had a history of injection drug use. The primary outcome was ART adherence at the end of treatment (4 month assessment) assessed via electronic pill caps (Medication Event Monitoring System [MEMS]) with correction for pocketed doses, analysed by intention to treat. FINDINGS: Patients were recruited from Feb 26, 2009, to June 21, 2012. Patients who were assigned to CBT-AD (94 randomly assigned, 83 completed assessment) had greater improvements in adherence (estimated difference 1·00 percentage point per visit, 95% CI 0·34 to 1·66, p=0·003) and depression (Center for Epidemiological Studies depression [CESD] score estimated difference -0·41, -0·66 to -0·16, p=0·001; Montgomery-Asberg depression rating scale [MADRS] score -4·69, -8·09 to -1·28, p=0·007; clinical global impression [CGI] score -0·66, -1·11 to -0·21, p=0·005) than did patients who had ETAU (49 assigned, 46 completed assessment) after treatment (4 months). No significant differences in adherence were noted between CBT-AD and ISP-AD (97 assigned, 87 completed assessment). No study-related adverse events were reported. INTERPRETATION: Integrating evidenced-based treatment for depression with evidenced-based adherence counselling is helpful for individuals living with HIV/AIDS and depression. Future efforts should examine how to best disseminate effective psychosocial depression treatments such as CBT-AD to people living with HIV/AIDS and examine the cost-effectiveness of such approaches. FUNDING: National Institute of Mental Health, National Institute of Allergy and Infectious Diseases.


Asunto(s)
Terapia Cognitivo-Conductual , Depresión/etiología , Depresión/terapia , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Cumplimiento de la Medicación/psicología , Adolescente , Adulto , Terapia Cognitivo-Conductual/economía , Análisis Costo-Beneficio , Consejo , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/virología , Humanos , Masculino , Años de Vida Ajustados por Calidad de Vida , Abuso de Sustancias por Vía Intravenosa/complicaciones , Resultado del Tratamiento , Estados Unidos/epidemiología , Adulto Joven
20.
Infect Dis Obstet Gynecol ; 2016: 5758387, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27366021

RESUMEN

In the United States, sexually transmitted diseases due to Chlamydia trachomatis and Neisseria gonorrhoeae continue to be a major public health burden. Screening of extragenital sites including the oropharynx and rectum is an emerging practice based on recent studies highlighting the prevalence of infection at these sites. We reviewed studies reporting the prevalence of extragenital infections in women, men who have sex with men (MSM), and men who have sex only with women (MSW), including distribution by anatomical site. Among women, prevalence was found to be 0.6-35.8% for rectal gonorrhea (median reported prevalence 1.9%), 0-29.6% for pharyngeal gonorrhea (median 2.1%), 2.0-77.3% for rectal chlamydia (median 8.7%), and 0.2-3.2% for pharyngeal chlamydia (median 1.7%). Among MSM, prevalence was found to be 0.2-24.0% for rectal gonorrhea (median 5.9%), 0.5-16.5% for pharyngeal gonorrhea (median 4.6%), 2.1-23.0% for rectal chlamydia (median 8.9%), and 0-3.6% for pharyngeal chlamydia (median 1.7%). Among MSW, the prevalence was found to be 0-5.7% for rectal gonorrhea (median 3.4%), 0.4-15.5% for pharyngeal gonorrhea (median 2.2%), 0-11.8% for rectal chlamydia (median 7.7%), and 0-22.0% for pharyngeal chlamydia (median 1.6%). Extragenital infections are often asymptomatic and found in the absence of reported risk behaviors, such as receptive anal and oral intercourse. We discuss current clinical recommendations and future directions for research.


Asunto(s)
Infecciones por Chlamydia , Chlamydia trachomatis , Gonorrea , Neisseria gonorrhoeae , Femenino , Humanos , Masculino , Conducta Sexual
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