Hernando Knobel

ORCID: 0000-0003-3186-6416
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Research Areas
  • HIV/AIDS drug development and treatment
  • HIV/AIDS Research and Interventions
  • HIV Research and Treatment
  • HIV-related health complications and treatments
  • Pneumocystis jirovecii pneumonia detection and treatment
  • HIV, Drug Use, Sexual Risk
  • Bone and Joint Diseases
  • Tuberculosis Research and Epidemiology
  • Hepatitis C virus research
  • Hematological disorders and diagnostics
  • Nosocomial Infections in ICU
  • Pharmacological Effects and Toxicity Studies
  • Vitamin D Research Studies
  • Immune Cell Function and Interaction
  • Bacterial Identification and Susceptibility Testing
  • COVID-19 Clinical Research Studies
  • Bone health and osteoporosis research
  • HIV/AIDS oral health manifestations
  • Medication Adherence and Compliance
  • Antibiotic Use and Resistance
  • Respiratory viral infections research
  • Streptococcal Infections and Treatments
  • Antibiotic Resistance in Bacteria
  • Infective Endocarditis Diagnosis and Management
  • Infectious Diseases and Tuberculosis

Hospital Del Mar
2015-2024

Instituto de Salud Carlos III
2023-2024

Centro de Investigación Biomédica en Red
2023-2024

Universitat Pompeu Fabra
2011-2024

Parc de Salut
2010-2024

Hospital del Mar Research Institute
2014-2023

Municipal Institute for Medical Research
2014-2023

Universitat Autònoma de Barcelona
2012-2022

Heidelberg University
2021

University Hospital Heidelberg
2021

Objective To assess the effectiveness of simplified medication adherence questionnaire (SMAQ) in identifying non-adherent patients. Design Prospective observational study adherence. The six-item SMAQ was developed. following aspects were evaluated: (i) criterion validity, comparison with electronic monitoring; (ii) construct association between adherence, as defined by SMAQ, and virological outcomes; (iii) reliability, internal consistency reproducibility. Patients A group 3004 unselected...

10.1097/00002030-200203080-00012 article EN AIDS 2002-03-01

To assess the effect of antiretroviral therapy (ART) adherence on survival in HIV-infected patients.Cohort study at a single hospital Barcelona, Spain.Data patients older than 18 years age who began ART during period 1990 to 1999 were analyzed. Patients considered nonadherent if total dose drug was less 90% that prescribed. Adherence assessed through self-report and pharmacy appointments. Cox regression with time-dependent variables used.A 1219 included. The first monotherapy 23.7% cases,...

10.1097/00042560-200205010-00014 article EN JAIDS Journal of Acquired Immune Deficiency Syndromes 2002-05-01
Juan Berenguer Pablo Ryan Jesús Rodríguez‐Baño Inmaculada Jarrín Jordi Carratalá and 95 more Jerónimo Pachón María Yllescas José Ramón Arriba Esther Aznar Muñoz Pedro Gil Divasson Patricia González Muñiz Clara Aguirre Juan Carlos López Margarita Ramírez-Schacke Isabel Gutiérrez Francisco Tejerina Teresa Aldámiz‐Echevarría Cristina Díez Chiara Fanciulli Leire Pérez‐Latorre F Parras Pilar Catalán María E. García-Leoni Isabel Pérez-Tamayo Luís Puente‐Maestu Jamil Cedeño Juan Berenguer Marta Díaz‐Menéndez Fernando Calle Marta Arsuaga Vicente Elena Trigo Esteban Ma del Mar Lago Núñez Rosa de Miguel Buckley Julen Cadiñanos Carmen Busca Alfredo Mican Marta Mora-Rillo Juan Carlos Ramos Ramos Belén Loeches Yagüe José I. Bernardino Julio García‐Rodríguez José Ramón Arribas Ana Such Díaz Elena Álvaro Alonso Elsa Izquierdo-García Juan Torres Macho Guillermo Cuevas Jesús Troya Beatriz Mestre Gómez Eva Jiménez Inés Fernández Jiménez A. J. Martinez Fátima Brañas Baztán Jorge Valencia de la Rosa Mario Pérez Marta Alvarado Pablo Ryan Ma Antonia Sepúlveda Berrocal Carmen Busca Pilar Toledano Sierra Verónica Cano Llorente Sadaf Zafar Iqubal-Mirza Gema Muñiz Inmaculada Martín Pérez Helena Mozas Moriñigo Ana Alguacil María Paz García Butenegro Ana Isabel Peláez Ballesta Elena Morcillo Rodríguez Josune Goikoetxea María José Blanco Vidal Javier Nieto Arana Mikel Del Álamo Martínez de Lagos Isabel Hernández Inés Pérez Zapata Rafael Silvariño Fernández Jon Ugalde Espiñeira Víctor Asensi Lucía Suárez Pérez Silvia Suárez Díaz Carmen Yllera Gutiérrez Vicente Boix Marcos Díez Martínez Melissa Carreres Candela Cristina Gómez‐Ayerbe Javier Sánchez-Lora José Luis Velasco Garrido María López-Jodar Jesús Santos González Jesús Ruiz Aragón Ianire Virto Peña Vanessa Castro Ruth Brea Aparicio Sonia Vega Molpeceres Estel Pons Viñas Oscar del Río Pérez Silvia Valero Rovira Judit Villar-García Joan Gómez‐Junyent Hernando Knobel

10.1016/j.cmi.2020.07.024 article EN publisher-specific-oa Clinical Microbiology and Infection 2020-08-04

Data regarding the most efficacious and least toxic schedules for use of colistin are scarce. The aim this study was to determine incidence potential risk factors colistin-associated nephrotoxicity including plasma levels. A prospective observational cohort conducted over one year in patients receiving intravenous methanesulfonate sodium (CMS). Blood samples levels were collected immediately before (Cmin) 30 minutes after CMS infusion (Cmax). Renal function assessed at baseline, on day 7 end...

10.1186/1471-2334-13-380 article EN cc-by BMC Infectious Diseases 2013-08-19

We assessed the strategy of substituting nevirapine, efavirenz, or abacavir for a protease inhibitor in patients infected with human immunodeficiency virus type 1 (HIV-1) whom virologic suppression had been achieved.We randomly assigned 460 adults who were taking two nucleoside reverse-transcriptase inhibitors and at least one whose plasma HIV-1 RNA levels less than 200 copies per milliliter previous six months to switch from nevirapine (155 patients), efavirenz (156), (149). The primary end...

10.1056/nejmoa021589 article EN New England Journal of Medicine 2003-09-10

OBJECTIVE—To assess the prevalence in HIV-infected patients of metabolic syndrome as defined by National Cholesterol Education Program, i.e., three or more following components: abdominal obesity, hypertriglyceridemia, low HDL cholesterol, high blood pressure, and fasting glucose. RESEARCH DESIGN AND METHODS—In this cross-sectional study, 710 managed at outpatient clinic a tertiary hospital during 2003 completed study protocol consisting medical examination laboratory analysis after 12-h...

10.2337/diacare.28.1.132 article EN Diabetes Care 2005-01-01

Background: Switching to raltegravir in selected patients treated with ritonavir-boosted protease inhibitors may result similar efficacy and lower plasma lipids. Methods: SPIRAL is a 48-week multicentre, open-label trial which HIV-infected adults less than 50 copies/ml of HIV RNA for at least the previous 6 months on inhibitor-based therapy were randomized (1: 1) switch from inhibitor or continue therapy. Primary endpoint was proportion free treatment failure (noncompleter = failure) 48...

10.1097/qad.0b013e32833a608a article EN AIDS 2010-05-13

There is scarce evidence on the use of eosinophil count as a marker outcome in patients with infection. The aim this study was to evaluate whether changes count, well neutrophil-lymphocyte ratio (NLCR), could be used clinical markers bacteremia.We performed retrospective first episode community-acquired or healthcare-related bacteremia during hospital admission between 2004 and 2009. A total 2,311 were included. Cox regression analyze behaviour NLCR survivors non-survivors.In adjusted...

10.1371/journal.pone.0042860 article EN cc-by PLoS ONE 2012-08-09

ABSTRACT HIV infection and antiretroviral therapies have detrimental effects on bone metabolism, but data their impact fracture risk are controversial. We conducted a population-based cohort study to explore the association between clinical diagnosis of hip major osteoporotic risk. Data were obtained from SIDIAPQ database, which contains information for >2 million patients in Catalonia, Spain (30% population). screened database identify participants with infection, ascertained...

10.1002/jbmr.1874 article EN Journal of Bone and Mineral Research 2013-01-29

Microbial translocation has been associated with an increase in immune activation and inflammation HIV infection despite effective highly active antiretroviral therapy. It shown that some probiotics have a beneficial effect by reducing intestinal permeability and, consequently, microbial translocation.To assess changes after treatment (Saccharomyces boulardii) HIV-1-infected patients virologic suppression.A double-blind, randomized, placebo-controlled trial was conducted 44 nonconsecutive...

10.1097/qai.0000000000000468 article EN JAIDS Journal of Acquired Immune Deficiency Syndromes 2014-12-03
Federico Pulido Esteban Ribera María Lagarde Ignacio Valero Rosario Palacios and 95 more José Antonio Iribarren Antoni Payeras Peré Domingo José Sanz Miguel Cervero Adrián Curran Francisco Javier Rodríguez‐Gómez María Jesús Téllez Pablo Ryan Pilar Barrufet Hernando Knobel Antonio Rivero Belén Alejos María Yllescas José Ramón Arribas José Ramón Arribas Rocío Montejano Juan González‐García Marisa Montes José I. Bernardino Ignacio Valero Juan Castro Mario Mayoral Federico Pulido María Lagarde Otilia Bisbal Mariano Matarranz Asunción Hernando Lourdes Domínguez Rafael Rubio Esteban Ribera Adrián Curran Jordi Navarro Joaquín Burgos I Ocaña Vicenç Falcó José Ramón Santos Rosario Palacios Ignacio Pérez Carmen María González-Domenech Maialen Ibarguren Miguel Ángel Goenaga Francisco Rodríguez-Arrondo M. A. von Wichmann Xabier Kortajarena M.P. Carmona H Son Llatzer Antoni Payeras Maison Abu Raya Andrea Salom Peré Domingo María Luisa Navarro Gómez M. Gracia Mateo M. A. Sambeat José Sanz J. de Miguel E Casas Alberto Arranz Miguel Cervero Rafael Torres H Infanta Elena Francisco Javier Rodríguez‐Gómez J M Fajardó Francisco Javier Martínez‐Marcos María de la Paz Valverde Merino Miguel Raffo Ignacio Suárez-Lozano H. Clínico María Jesús Téllez Jorge Vergas Vicente Estrada H Infanta Leonor Pablo Ryan Jesús Troya Guillermo Cuevas Victorino Diez-Viñas Tamar Talaván F Solís H de Mataró Pilar Barrufet Lluís Force Hanna Mar Hernando Knobel A. M. Maceira Gonzalez Edgar V. Lerma J. Villar H Reina Sofía Antonio Rivero Ángela Camacho Isabel Machuca Teresa Brieva Antonio Rivero‐Juárez JM Gatell R. Domínguez Daniel Podzamczer

Our objective was to assess the therapeutic noninferiority of dual therapy with darunavir/ritonavir and lamivudine compared triple plus 2 nucleos(t)ides for maintenance human immunodeficiency virus type 1 (HIV-1) suppression.This a multicenter, open-label, trial (margin 12%). Patients HIV-1 RNA <50 copies/mL 6 months or longer on (tenofovir disoproxil fumarate emtricitabine abacavir lamivudine) no resistance were randomized continue (n = 128) switch 129). The primary endpoint proportion...

10.1093/cid/cix734 article EN Clinical Infectious Diseases 2017-08-12

10.1016/s2352-3018(17)30179-0 article EN The Lancet HIV 2017-10-12
Daniel K. Nomah Juliana Reyes‐Urueña Yesika Díaz Sergio Moreno‐Fornés Jordi Aceitón and 95 more Andreu Bruguera Rosa Maria Vivanco‐Hidalgo Josep M. Llibre Peré Domingo Vicenç Falcó Arkaitz Imaz Cristina Cortés Lluís Force Emili Letang Ingrid Vilaró Jordi Casabona José M Miró Esteve Muntada Anna Esteve Melchor Riera Gemma Navarro Hernando Knobel Josep Mallolas Daniel Podzamczer Adrián Curran Joaquín Burgos María Gracia Mateo María del Mar Gutiérrez Javier Murillas Francisco Homar José Vicente Fernández-Montero Eva López González Joaquim Peraire Francesc Vidal Elena León Àngels Masabeu Amat-Joaquim Orti David Dalmau Ángeles Jaén Elisabet Deig Elisa de Lazzari Leire Berrocal Guillem Fernandez Lucía Rodríguez‐Vázquez Freya Gargoulas Toni Vanrell Jose Carlos Rubia Josep Vilà Marina Martínez Bibiana Morell Maribel Tamayo Jorge Palacio Juan Ambrosioni Montse Laguno Maria Martínez‐Rebollar José Luís Blanco Felipe García Estebán Martínez Berta Torres Lorena de la Mora Alexy Inciarte Ainoa Ugarte Iván Chivite Ana González-Cordón Lorna Leal Antoni Jou María Saumoy Ana Martins da Silva Sofía Scévola Jordi Navarro Paula Suanzes Isabel Mur Maria Àngels Ribas Antoni A Campins Francisco Fanjul María Leyes María Luz Pintos Peñaranda Marisa Martín Helem Vílchez Sònia Calzado Manel Cervantes María José Amengual Marta Navarro Antoni Payeras Carmen Luna Aroa Villoslada Gelabert Patrícia Sorní Marta Molero Nadia Abdulghani Thaïs Comella Rocio Sola Montserrat Vargas Consuleo Viladés Anna Martí Pilar Barrufet Laia Arbonés Elena Chamarro Mireia Cairó Xavier Martinez-Lacas Roser Font

BackgroundFactors affecting outcomes of SARS-CoV-2 infection in people living with HIV are unclear. We assessed the factors associated diagnosis and severe among HIV.MethodsWe did a retrospective cohort study using data from PISCIS Catalonia (Spain) between March 1 Dec 15, 2020. linked integrated health-care, clinical, surveillance registries through Public Data Analysis for Health Research Innovation Program (PADRIS) to obtain on diagnosis, chronic comorbidities, as well clinical mortality...

10.1016/s2352-3018(21)00240-x article EN other-oa The Lancet HIV 2021-10-15

Bone loss is a normal feature of aging. Accelerated bone demineralization multifactorial process; recent reports have suggested that HIV infection, perhaps in association with protease inhibitor (PI) therapy, an additional risk factor for osteopenia [1,2]. However, changes mineral metabolism, histomorphometry or density had been described HIV-infected patients before the era highly active antiretroviral therapy (HAART) [3–5]. The aim this study to define role infection and development loss....

10.1097/00002030-200104130-00022 article EN AIDS 2001-04-01

Non-nucleoside reverse transcriptase inhibitor-containing regimens may be a valid alternative to protease for initial antiretroviral therapy, but date few studies comparing these two strategies have been performed.To evaluate the efficacy and safety of nelfinavir or nevirapine associated zidovudine/lamivudine in HIV-infected naive patients.Randomized, open-label, multicentre trial.Twelve centres Spain (9) Argentina (3).One hundred forty-two patients without AIDS.Patients received combivir...

10.1177/135965350200700202 article EN Antiviral Therapy 2002-02-01

Objectives: To assess the effect of early syphilis on HIV viral load (VL) and CD4 cell count in patients with to analyze factors associated changes VL count. Design: Multicenter study a series who were diagnosed infection during 2004 through 2005. Patients started or changed their highly active antiretroviral therapy (HAART) regimen analysis period excluded. Results: One hundred eighteen analyzed: 95.8% men, mean patient age was 38.2 years, 83.9% homosexual 50.8% at time diagnosed, diagnoses...

10.1097/qai.0b013e31802ea4c6 article EN JAIDS Journal of Acquired Immune Deficiency Syndromes 2006-12-15

The OK04 trial has shown that 48 weeks of lopinavir-ritonavir monotherapy with reintroduction nucleosides as needed was noninferior to continuation triple therapy 2 and in patients prior stable suppression. However, it is still uncertain if this experimental strategy can maintain suppression the long term.Patients entered noninferiority (upper limit 95% confidence interval: +12%) no history virological failure while receiving a protease inhibitor plus lopinavir/ritonavir, HIV RNA <50 copies...

10.1097/qai.0b013e3181a56de5 article EN JAIDS Journal of Acquired Immune Deficiency Syndromes 2009-05-21

Patients with infected arthroplasties are normally treated a two-stage exchange procedure using polymethylmethacrylate bone cement spacers impregnated antibiotics. However, may act as foreign body to which micro-organisms adhere and grow. In this study it was hypothesised that subclinical infection be diagnosed sonication of the surface biofilm spacer. The aims were assess presence through spacer at time second-stage procedure, determine relationship between clinical outcome. Of 55 patients...

10.1302/0301-620x.94b2.27779 article EN Journal of Bone and Joint Surgery - British Volume 2012-02-01

Little is known about hypertension in the HIV-infected population. This study aimed to assess prevalence of and related factors patients.In this prospective cross-sectional study, 710 patients (626 on combination antiretroviral therapy 84 naive) managed at outpatient clinic a tertiary hospital during 2003 802 controls completed protocol consisting medical examination 6-month follow-up period including three control visits.Hypertension was 13.1% 13.5% group. Age (per 10-year increment) (odds...

10.1016/j.amjhyper.2005.05.016 article EN American Journal of Hypertension 2005-11-01

Whether or not combination antiretroviral therapy (CART) alone directly contributes to accelerating atherosclerosis in HIV-infected patients has been studied depth. This study aimed ascertain the relationship between this and subclinical carotid according cardiovascular risk.Sixty-eight with < =1 risk factors 64 > =2 completed protocol consisting of clinical, laboratory, vascular evaluation by high-resolution B-mode ultrasonography. Univariate multivariate logistic regression analyses were...

10.1161/01.str.0000204037.26797.7f article EN Stroke 2006-01-27
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