Atazanavir-Based Therapy Is Associated with Higher Hepatitis C Viral Load in HIV Type 1-Infected Subjects with Untreated Hepatitis C

Comunicación cortaWe assessed the relationship between atazanavir (ATV)-based antiretroviral treatment (ART) and plasma hepatitis C virus (HCV) viral load in a population of HIV/HCV-coinfected patients. HIV/HCV-coinfected patients who received ART based on a protease inhibitor (PI) or nonnucleoside reverse transcriptase inhibitor (NNRTI) were included. Patients were stratified by ART drug [ATV/rtv, lopinavir (LPV/rtv), efavirenz (EFV), nevirapine (NVP), and other PIs], HCV genotype (1/4 and 2/3), and IL28B genotype (CC and non-CC). The Kruskal-Wallis test and chi-squared test were used to compare continuous and categorical variables, respectively. Multivariate analysis consisted of a stepwise linear regression analysis. Six hundred and forty-nine HIV/HCV-coinfected patients were included. HCV genotype 1/4 patients who received ATV had higher HCV RNA levels [6.57 (5.9-6.8) log IU/ml] than those who received LPV [6.1 (5.5-6.5) log IU/ml], EFV [6.1 (5.6-6.4) log IU/ml], NVP [5.8 (5.5-5.9) log IU/ml], or other PIs [6.1 (5.7-6.4) log IU/ml] (p=0.014). This association held for the IL28B genotype (CC versus non-CC). The association was not found in patients carrying HCV genotypes 2/3. The linear regression model identified the IL28B genotype and ATV use as independent factors associated with HCV RNA levels. ATV-based therapy may be associated with a higher HCV RNA viral load in HIV/HCV-coinfected patients

Different HCV exposure drives specific miRNA profile in PBMCS of HIV patients

"Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM"Micro RNAs (miRNAs) are essential players in HIV and HCV infections, as both viruses modulate cellular miRNAs and interact with the miRNA-mediated host response. We aim to analyze the miRNA profile of HIV patients with different exposure to HCV to explore specific signatures in the miRNA profile of PBMCs for each type of infection. We massively sequenced small RNAs of PBMCs from 117 HIV+ infected patients: 45 HIV+ patients chronically infected with HCV (HIV/HCV+), 36 HIV+ that spontaneously clarified HCV after acute infection (HIV/HCV-) and 36 HIV+ patients without previous HCV infection (HIV). Thirty-two healthy patients were used as healthy controls (HC). Differential expression analysis showed significantly differentially expressed (SDE) miRNAs in HIV/HCV+ (n = 153), HIV/HCV-(n = 169) and HIV (n = 153) patients. We found putative dysregulated pathways, such as infectious-related and PI3K signaling pathways, common in all contrasts. Specifically, putatively targeted genes involved in antifolate resistance (HIV/HV+), cancer-related pathways (HIV/HCV-) and HIF-signaling (HIV) were identified, among others. Our findings revealed that HCV strongly influences the expression profile of PBMCs from HIV patients through the disruption of its miRNome. Thus, different HCV exposure can be identified by specific miRNA signatures in PBMCs.This work has been supported by grants from Institute of Health Carlos III, [PI15CIII/00031 and PI18CIII/00020/ to AFR and VB] and the Foundation Universidad Alfonso X el Sabio-Santander [grant number 1.010.932 to AFR] and the Spanish AIDS Research Network (RD16CIII/0002/0002), and Centro de Investigación Biomédica en Red (CIBER) en Enfermedades Infecciosas (CB21/13/00044). AFR is supported by the Miguel Servet programme from Fondo de Investigación Sanitaria (ISCIII) [CP14/CIII/00010 and CPII20CIII/0001]

Desarrollo de recursos didácticos adaptados para la Generación Z en el ámbito de la Ingeniería Química

En este Proyecto Innova-docencia se van a elaborar una serie de recursos didácticos que sirvan de apoyo a la docencia presencial y virtual de asignaturas del área de la Ingeniería Química a nivel de Grado y de Máster enfocados a la Generación Z

Análisis de las células NK en la infección por el virus de la inmunodeficiencia humana y su relación con la progresión de la enfermedad

Tesos doctoral inédita. Universidad Autónoma de Madrid, Facultad de Medicina, Departamento de Medicina. Fecha de lectura: 19 de Noviembre de 199

Analisis de las celulas NK en la infeccion por el virus de la inmunodeficiencia humana y su relacion con la progresion de la enfermedad

Centro de Informacion y Documentacion Cientifica (CINDOC). C/Joaquin Costa, 22. 28002 Madrid. SPAIN / CINDOC - Centro de Informaciòn y Documentaciòn CientìficaSIGLEESSpai

Physicians' opinions on generic antiretroviral drugs and single-tablet regimen de-simplification for the treatment of HIV infection: a multicentre survey in Spain

Objectives: To assess the attitudes and opinions about generic antiretroviral drugs (ARVs) and single-tablet regimen (STR) de-simplification among physicians prescribing HIV treatment in the cohort of the Spanish HIV/AIDS Research Network (CoRIS). Methods: An online questionnaire with 27 structured questions was sent to all physicians (n=199) who prescribed ARVs among the 45 centres participating in the cohort. Results: A total of 169 (84.9%) physicians answered the questionnaire. Only 4.1% of the physicians would never prescribe generic ARVs, but 53.3% would not prescribe them if the number of pills per day increased and 89.3% would not prescribe them if the number of doses per day increased. However, 84.0% of the physicians agreed to prescribe generic ARVs if doing so would decrease costs for the public healthcare system. The percentages of physicians stating that generic ARVs (compared with branded ones) would be associated with worse adherence, more adverse effects or more probability of virological failure, provided that the number of pills and doses per day would not change, were low: 0.6%, 7.7% and 3.6%, respectively. However, these percentages were much higher if the generic ARV entailed breaking an STR: 63.9%, 18.9% and 42.0%, respectively. Most physicians stated that they needed more information about the effectiveness and safety of generic ARVs and the price difference compared with their branded equivalents. Conclusions: Although most physicians were confident about prescribing generic ARVs, the majority had strong concerns about de-simplifying STR, and they also needed more information about generic drugs.Sin financiación5.790 JCR (2020) Q1, 41/275 Pharmacology & Pharmacy2.124 SJR (2020) Q1, 27/292 Infectious DiseasesNo data IDR 2019UE

Barreras para el inicio del tratamiento antirretroviral en pacientes con virus de la inmunodeficiencia humana e indicación de tratamiento en España. ¿Por qué no inician tratamiento quienes lo tienen indicado? Estudio Bridgap

Introducción En España algunos pacientes con VIH no reciben tratamiento antirretroviral (TAR), aun teniendo indicaciones para ello. Nuestro objetivo es identificar las barreras de inicio del TAR en pacientes con indicación para recibirlo. Métodos Encuesta transversal en 19 hospitales en España en 2012, incluyendo todos los pacientes que no recibían tratamiento y tenían al menos una indicación según las recomendaciones de Gesida/2011. Las posibles barreras se agruparon así (categorías no excluyentes): a) el médico considera que la indicación no es absoluta; b) el paciente no quiere iniciarlo; c) el médico considera que debe iniciarlo pero existe alguna limitación o contraindicación; y d) el paciente tiene viremia indetectable en ausencia de tratamiento. Resultados Se incluyeron 256 pacientes de los 784 programados; 84% hombres, mediana de edad 39 años; 57% homosexuales, 24% heterosexuales, 16% UDI. Mediana de tiempo desde el diagnóstico: 3 años, CD4: 501 células/mm3, carga viral 4,4 log. Indicaciones de TAR más frecuentes: CD4<500 c eacute lulas mm3 48 pareja sexual no infectada 28 coinfecci oacute n con virus de la hepatitis 23 las barreras para el inicio del tar fueron dependientes m dico en 55 los casos paciente otras limitaciones: viremia indetectable: 6 Conclusiones La mayoría de los pacientes con indicación de TAR lo estaban recibiendo. El motivo más frecuente en quienes no lo recibían fue que el médico pensaba que la indicación no era absoluta, y prefería esperar, lo que sugiere la necesidad de enfatizar en los beneficios de iniciar el TAR en estos casos.1.530 JCR (2015) Q3,59/83 Infectious diseases; Q4, 97/123 MicrobiologyUE

Impact of IL28B genotype on first-week response to telaprevir-based therapy in HIV-HCV coinfection

BACKGROUND IL28B genotype predicts response to treatment against hepatitis C virus (HCV) with pegylated interferon/ribavirin (PR) and impacts on the outcome of therapy including telaprevir (TVR). This study aimed to determine the influence of the favorable IL28B genotype on early viral kinetics during therapy with TVR/PR in HIV/HCV-coinfected patients. METHODS All HIV/HCV genotype 1-coinfected subjects who received TVR/PR for at least 4 weeks were included from populations prospectively followed in 22 centers throughout Germany, Switzerland and Spain. RESULTS Of the 129 subjects included, 38 (29.5%) presented with IL28B genotype CC and 94 (72.9%) were treatment-experienced. Ninety-six (73.8%) patients showed undetectable plasma HCV-RNA at treatment week (W) 4: 30 (78.9%) of the IL28B-CC carriers and 65 (71.4%) of the non-CC carriers (p=0.377). Among treatment-naïve patients, proportions of undetectable HCV-RNA among IL28B-CC versus non-CC carriers were 8/9 (88.9%) versus 3/9 (33.3%, p=0.016) and 14/17 (82.4%) versus 11/18 (61.1%, p=0.164) at W2 and W4. The decrease of HCV-RNA at W2 and W4 was similar among the IL28B carriers. CONCLUSIONS IL28B genotype does not predict W4 response to TVR/PR in HIV/HCV-coinfected patients, regardless of their treatment history. However, there is evidence of an impact on response during the first weeks in treatment-naïve patients