Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
1.
Emerg Infect Dis ; 26(3): 541-548, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-32017677

RESUMEN

Little information exists regarding Ebola vaccine rVSVΔG-ZEBOV-GP and pregnancy. The Sierra Leone Trial to Introduce a Vaccine against Ebola (STRIVE) randomized participants without blinding to immediate or deferred (18-24 weeks postenrollment) vaccination. Pregnancy was an exclusion criterion, but 84 women were inadvertently vaccinated in early pregnancy or became pregnant <60 days after vaccination or enrollment. Among immediate vaccinated women, 45% (14/31) reported pregnancy loss, compared with 33% (11/33) of unvaccinated women with contemporaneous pregnancies (relative risk 1.35, 95% CI 0.73-2.52). Pregnancy loss was similar among women with higher risk for vaccine viremia (conception before or <14 days after vaccination) (44% [4/9]) and women with lower risk (conception >15 days after vaccination) (45% [10/22]). No congenital anomalies were detected among 44 live-born infants examined. These data highlight the need for Ebola vaccination decisions to balance the possible risk for an adverse pregnancy outcome with the risk for Ebola exposure.


Asunto(s)
Vacunas contra el Virus del Ébola/inmunología , Fiebre Hemorrágica Ebola/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Atención Prenatal , Adulto , Método Doble Ciego , Vacunas contra el Virus del Ébola/efectos adversos , Femenino , Fiebre Hemorrágica Ebola/prevención & control , Humanos , Embarazo , Complicaciones Infecciosas del Embarazo/prevención & control , Resultado del Embarazo , Sierra Leona/epidemiología , Vacunación , Adulto Joven
2.
J Infect Dis ; 220(9): 1503-1510, 2019 09 26.
Artículo en Inglés | MEDLINE | ID: mdl-31287879

RESUMEN

BACKGROUND: While bacterial vaginosis has been associated with an increased risk of Trichomonas vaginalis (TV) acquisition, it is unknown whether other characteristics of the vaginal microbiota, including the presence of key bacterial species, influence a woman's risk of TV acquisition. METHODS: The vaginal microbiota before 25 unique episodes of TV infection involving 18 women was compared to that of 50 controls who remained uninfected. TV was detected by transcription-mediated amplification. Vaginal microbiota were quantified using broad-range polymerase chain reaction analysis and taxon-specific quantitative PCR of the 16S ribosomal RNA gene. RESULTS: TV acquisition was significantly associated with the presence of Prevotella amnii (risk ratio [RR], 2.21; 95% confidence interval [CI], 1.12-4.38; P = .02) and Sneathia sanguinegens (RR, 2.58; 95% CI, 1.00-6.62; P = .049). When adjusted for menstrual phase, the association between P. amnii and TV acquisition remained similar (adjusted RR, 2.11; 95% CI, 1.03-4.33; P = .04), but the association between S. sanguinegens and TV acquisition was attenuated (adjusted RR, 2.31; 95% CI, .86-6.23; P = .10). CONCLUSIONS: Key vaginal bacterial species may contribute to the susceptibility to TV acquisition. Understanding how these bacterial species increase a woman's risk of TV acquisition could help to guide the development of novel strategies to reduce women's risk of TV infection.


Asunto(s)
Bacterias/aislamiento & purificación , Biota , Susceptibilidad a Enfermedades , Vaginitis por Trichomonas/epidemiología , Trichomonas vaginalis/aislamiento & purificación , Vagina/microbiología , Vagina/parasitología , Adulto , Bacterias/clasificación , ADN Bacteriano/genética , ADN Protozoario/genética , Femenino , Humanos , Persona de Mediana Edad , Técnicas de Amplificación de Ácido Nucleico , Estudios Prospectivos , Medición de Riesgo
3.
Int J STD AIDS ; 30(2): 106-112, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30231831

RESUMEN

The impact of the 2014-2016 Ebola epidemic in West Africa on human immunodeficiency virus (HIV) treatment in Sierra Leone is unknown, especially for groups with higher HIV prevalence such as the military. Using a retrospective study design, clinical outcomes were evaluated prior to and during the epidemic for 264 HIV-infected soldiers of the Republic of Sierra Leone Armed Forces (RSLAF) and their dependents receiving HIV treatment at the primary RSLAF HIV clinic. Medical records were abstracted for baseline clinical data and clinic attendance. Estimated risk of lost to follow-up (LTFU), default, and number of days without antiretroviral therapy (DWA) were calculated using repeated measures general estimating equations adjusted for age and gender. Due to missing data, 262 patients were included in the final analyses. There was higher risk of LTFU throughout the Ebola epidemic in Sierra Leone compared to the pre-Ebola baseline, with the largest increase in LTFU risk occurring at the peak of the epidemic (relative risk: 3.22, 95% CI: 2.22-4.67). There was an increased risk of default and DWA during the Ebola epidemic for soldiers but not for their dependents. The risk of LTFU, default, and DWA stabilized once the epidemic was largely resolved but remained elevated compared to the pre-Ebola baseline. Our findings demonstrate the negative and potentially lasting impact of the Ebola epidemic on HIV care in Sierra Leone and highlight the need to develop strategies to minimize disruptions in HIV care with future disease outbreaks.


Asunto(s)
Antirretrovirales/uso terapéutico , Brotes de Enfermedades , Epidemias , Infecciones por VIH/tratamiento farmacológico , Fiebre Hemorrágica Ebola/epidemiología , Personal Militar/estadística & datos numéricos , Cooperación del Paciente , Adulto , Femenino , Infecciones por VIH/epidemiología , Humanos , Perdida de Seguimiento , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Sierra Leona/epidemiología
5.
J Infect Dis ; 217(suppl_1): S6-S15, 2018 05 18.
Artículo en Inglés | MEDLINE | ID: mdl-29788345
7.
BMJ Glob Health ; 2(2): e000344, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29082001

RESUMEN

BACKGROUND: Critical illness is a leading cause of morbidity and mortality in sub-Saharan Africa (SSA). Identifying patients with the highest risk of death could help with resource allocation and clinical decision making. Accordingly, we derived and validated a universal vital assessment (UVA) score for use in SSA. METHODS: We pooled data from hospital-based cohort studies conducted in six countries in SSA spanning the years 2009-2015. We derived and internally validated a UVA score using decision trees and linear regression and compared its performance with the modified early warning score (MEWS) and the quick sepsis-related organ failure assessment (qSOFA) score. RESULTS: Of 5573 patients included in the analysis, 2829 (50.8%) were female, the median (IQR) age was 36 (27-49) years, 2122 (38.1%) were HIV-infected and 996 (17.3%) died in-hospital. The UVA score included points for temperature, heart and respiratory rates, systolic blood pressure, oxygen saturation, Glasgow Coma Scale score and HIV serostatus, and had an area under the receiver operating characteristic curve (AUC) of 0.77 (95% CI 0.75 to 0.79), which outperformed MEWS (AUC 0.70 (95% CI 0.67 to 0.71)) and qSOFA (AUC 0.69 (95% CI 0.67 to 0.72)). CONCLUSION: We identified predictors of in-hospital mortality irrespective of the underlying condition(s) in a large population of hospitalised patients in SSA and derived and internally validated a UVA score to assist clinicians in risk-stratifying patients for in-hospital mortality. The UVA score could help improve patient triage in resource-limited environments and serve as a standard for mortality risk in future studies.

8.
Acta Neurochir (Wien) ; 159(11): 2239-2241, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28933015

RESUMEN

Devise-related infections after deep brain stimulator implantation are not uncommon. However, infections due to mycobacteria have not been reported in the medical literature. We describe the first reported case of DBS infection due to a novel rapidly growing mycobacteria, most closely resembling Mycobacterium goodii, by rpoB gene sequencing.


Asunto(s)
Infecciones del Sistema Nervioso Central/microbiología , Estimulación Encefálica Profunda/instrumentación , Temblor Esencial/terapia , Infecciones por Mycobacterium no Tuberculosas/microbiología , Infecciones Relacionadas con Prótesis/microbiología , Proteínas Bacterianas/genética , ARN Polimerasas Dirigidas por ADN/genética , Remoción de Dispositivos , Humanos , Masculino , Persona de Mediana Edad , Mycobacterium/genética , ARN Ribosómico 16S/genética , Análisis de Secuencia de ADN , Análisis de Secuencia de ARN
9.
PLoS One ; 10(6): e0130146, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26083468

RESUMEN

INTRODUCTION: Trichomonas vaginalis infection is associated with an increased risk of HIV infection in exposed-seronegative women (ESN) despite their unique immune quiescent profile. It is important to understand possible mechanisms, such as recruitment of activated T cells, by which T. vaginalis could facilitate HIV infection in this population. METHODS: We conducted a cross-sectional study exploring the relationships between T. vaginalis infection, inflammatory markers and T cell activation in the cervix of ESN. During scheduled study visits, participants completed a behavioral questionnaire and physical exam, including sexually transmitted infection (STI) screening and collection of endocervical sponge and cytobrush specimens. T cell and monocyte phenotypes were measured in cervical cytobrush specimens using multi-parameter flow cytometry. Cervical sponge specimens were used to measure cytokines (IL-6, IL-8,IL-10, IP-10, RANTES) using Luminex immunoassays and the immune activation marker soluble TNF receptor 1 using ELISA. RESULTS: Specimens of 65 women were tested. Twenty-one of these women were infected with T. vaginalis. T. vaginalis infection was associated with significantly increased concentrations of IL-8 (1275pg/ml vs. 566pg/ml, p=.02) and sTNFr1 (430 pg/ml vs. 264 pg/ml, p=.005). However, T. vaginalis infection was not associated with increased percent expression of CCR5+ T cells nor increased CD38 and HLADR activation compared to uninfected women. It was also not associated with increased expression of CCR5+ monocytes. CONCLUSIONS: Among ESN T. vaginalis infection is associated with increased levels of genital pro-inflammatory/immune activation markers IL-8 and TNFr1, but was not associated with an increased percentage of activated endocervical T cells along the CD38 and HLADR pathways. Thus, while T.vaginalis infection may result in some reversal of the immune quiescent profile of ESN, enhanced recruitment of activated CD38 and HLADR expressing CD4+ cells into the endocervix may not be part of the mechanism by which Trichomonas infection alters HIV susceptibility in this unique subset of women.


Asunto(s)
Cuello del Útero/microbiología , Seronegatividad para VIH , Interleucina-8/metabolismo , Receptores Tipo I de Factores de Necrosis Tumoral/metabolismo , Vaginitis por Trichomonas/metabolismo , Trichomonas vaginalis/fisiología , Adolescente , Adulto , Estudios Transversales , Femenino , Infecciones por VIH/complicaciones , Humanos , Persona de Mediana Edad , Receptores Tipo I de Factores de Necrosis Tumoral/química , Solubilidad , Linfocitos T/citología , Vaginitis por Trichomonas/complicaciones , Vaginitis por Trichomonas/inmunología , Vaginitis por Trichomonas/virología , Replicación Viral , Adulto Joven
10.
Am J Trop Med Hyg ; 92(1): 172-7, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25404077

RESUMEN

There is a paucity of data on the etiologies and outcomes of febrile illness in rural Sierra Leone, especially in the Lassa-endemic district of Kenema. We conducted a retrospective study of patients with subjective or documented fever (T ≥ 38.0°C) who were admitted to a rural tertiary care hospital in Kenema between November 1, 2011 and October 31, 2012. Of 854 patients admitted during the study period, 429 (50.2%) patients had fever on admission. The most common diagnoses were malaria (27.3%), pneumonia (5.1%), and Lassa fever (4.9%). However, 53.4% of febrile patients had no diagnosis at discharge. The in-hospital mortality rate was 18.9% and associated with documented temperature ≥ 38.0°C (adjusted odds ratio [AOR] = 2.89, P = 0.001) and lack of diagnosis at discharge (AOR = 2.04, P = 0.03). Failure to diagnose the majority of febrile adults and its association with increased mortality highlight the need for improved diagnostic capacity to improve patient outcomes.


Asunto(s)
Fiebre/mortalidad , Derivación y Consulta , Centros de Atención Terciaria , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Sierra Leona/epidemiología , Adulto Joven
11.
AIDS Patient Care STDS ; 27(5): 266-71, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23651103

RESUMEN

We examined the association between metabolic syndrome (MS) and its individual defining criteria on all-cause mortality in human immunodeficiency virus (HIV)-infected persons. We used data from 567 HIV-infected participants of the Nutrition for Healthy Living study with study visits between 9/1/2000 and 1/31/2004 and determined mortality through 12/31/2006. MS was defined using modified National Cholesterol Education Program guidelines. Cox proportional hazards for all-cause mortality were estimated for baseline MS status and for its individual defining criteria. There were 83 deaths with median follow-up of 63 months. Baseline characteristics associated with increased risk of mortality were: older age in years (univariate hazard ratio [HR] 1.04, p<0.01), current smoking (HR 1.99, p=0.02), current heroin use (HR 1.97, p=0.02), living in poverty (HR 2.0, p<0.01), higher mean HIV viral load (HR 1.81, p<0.01), and having a BMI <18 (HR 5.84, p<0.01). For MS and its criteria, only low HDL was associated with increased risk of mortality on univariate analysis (HR 1.84, p=0.01). However, metabolic syndrome (adjusted HR 2.31, p=0.02) and high triglycerides (adjusted HR 3.97, p<0.01) were significantly associated with mortality beyond 36 months follow-up. MS, low HDL, and high triglycerides are associated with an increased risk of mortality in HIV-infected individuals.


Asunto(s)
Infecciones por VIH/mortalidad , Síndrome Metabólico/mortalidad , Adulto , Fármacos Anti-VIH/uso terapéutico , Índice de Masa Corporal , Causas de Muerte , HDL-Colesterol/metabolismo , Femenino , Estudios de Seguimiento , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/virología , Humanos , Hipertensión/complicaciones , Hipertensión/epidemiología , Incidencia , Entrevistas como Asunto , Masculino , Massachusetts/epidemiología , Síndrome Metabólico/complicaciones , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Factores de Riesgo , Encuestas y Cuestionarios , Triglicéridos/metabolismo
12.
Antivir Ther ; 17(7): 1385-8, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22728657

RESUMEN

We describe a 55-year-old HIV-1-infected male who developed severe dyslipidaemia (total cholesterol 600 mg/dl, triglycerides >5,000 mg/dl, high density lipoprotein <5 mg/dl) after raltegravir was added to his lopinavir/ritonavir-containing regimen. To our knowledge, this is the first reported case of severe dyslipidaemia associated with the addition of raltegravir to a lopinavir/ritonavir-based regimen, suggestive of a possible drug interaction. The lipid profile quickly normalized following discontinuation of lopinavir/ritonavir and continuation of raltegravir, suggesting that lopinavir/ritonavir was the primary driver for the adverse event. With increasing interest in nucleoside-sparing regimens, knowledge of clinically significant adverse events such as this is important for HIV clinicians when selecting regimens for patients with highly resistant virus or drug tolerability issues.


Asunto(s)
Dislipidemias/inducido químicamente , Infecciones por VIH/complicaciones , Inhibidores de la Proteasa del VIH/efectos adversos , Lopinavir/efectos adversos , Pirrolidinonas/efectos adversos , Ritonavir/efectos adversos , HDL-Colesterol/sangre , Interacciones Farmacológicas , Quimioterapia Combinada , Dislipidemias/patología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/virología , Inhibidores de la Proteasa del VIH/uso terapéutico , VIH-1/patogenicidad , Humanos , Lopinavir/uso terapéutico , Masculino , Persona de Mediana Edad , Pirrolidinonas/uso terapéutico , Raltegravir Potásico , Ritonavir/uso terapéutico , Resultado del Tratamiento , Triglicéridos/sangre
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...