Search Results - "Leon, Alejandro Garcia"
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Obesity is associated with higher levels of circulating cytokines involved in the development of cardiovascular disease in people living with HIV
Published in Journal of acquired immune deficiency syndromes (1999) (01-12-2024)“…Obesity is increasingly described in people living with HIV (PLWH), but its impact on immune activation and inflammation in HIV is still poorly characterised…”
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Individuals with obesity who survive SARS‐CoV‐2 infection have preserved antigen‐specific T cell frequencies
Published in Obesity (Silver Spring, Md.) (01-10-2022)“…Objective Obesity is a major risk factor for severe disease in COVID‐19, with increased hospitalization, intensive care unit admission, and mortality. This…”
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Development of a novel medium throughput flow-cytometry based micro-neutralisation test for SARS-CoV-2 with applications in clinical vaccine trials and antibody screening
Published in PloS one (30-11-2023)“…Quantifying neutralising capacity of circulating SARS-COV-2 antibodies is critical in evaluating protective humoral immune responses generated…”
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Early inflammatory profiles predict maximal disease severity in COVID-19: An unsupervised cluster analysis
Published in Heliyon (15-08-2024)“…The inflammatory changes that underlie the heterogeneous presentations of COVID-19 remain incompletely understood. In this study we aimed to identify…”
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Distinct receptor binding domain IgG thresholds predict protective host immunity across SARS-CoV-2 variants and time
Published in Nature communications (02-11-2023)“…SARS-CoV-2 neutralising antibodies provide protection against COVID-19. Evidence from early vaccine trials suggested binding antibody thresholds could serve as…”
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Immunogenicity and reactogenicity of a first booster with BNT162b2 or full-dose mRNA-1273: A randomised VACCELERATE trial in adults ≥75 years (EU-COVAT-1)
Published in Vaccine (22-11-2023)“…Vaccination remains crucial for protection against severe SARS-CoV-2 infection, especially for people of advanced age, however, optimal dosing regimens are as…”
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Robust and persistent B-cell responses following SARS-CoV-2 vaccine determine protection from SARS-CoV-2 infection
Published in Frontiers in immunology (17-09-2024)“…A clear immune correlate of protection from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has not been defined. We explored antibody,…”
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Dynamic Change and Clinical Relevance of Postinfectious SARS-CoV-2 Antibody Responses
Published in Open forum infectious diseases (01-08-2021)“…Abstract Background Although reports suggest that most individuals with coronavirus disease 2019 (COVID-19) develop detectable antibodies postinfection, the…”
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Concordance between PCR-based extraction-free saliva and nasopharyngeal swabs for SARS-CoV-2 testing
Published in HRB open research (2021)“…Introduction : Saliva represents a less invasive alternative to nasopharyngeal swab (NPS) for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)…”
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Concordance between PCR-based extraction-free saliva and nasopharyngeal swabs for SARS-CoV-2 testing
Published in HRB open research (01-07-2021)“…Introduction : Saliva represents a less invasive alternative to nasopharyngeal swab (NPS) for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)…”
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Dysregulated early transcriptional signatures linked to mast cell and interferon responses are implicated in COVID-19 severity
Published in Frontiers in immunology (16-05-2023)“…Dysregulated immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection are thought to underlie the progression of coronavirus…”
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Characteristics of SARS-CoV-2 variants of concern B.1.1.7, B.1.351 or P.1: data from seven EU/EEA countries, weeks 38/2020 to 10/2021
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (22-04-2021)“…We compared 19,207 cases of SARS-CoV-2 variant B.1.1.7/S gene target failure (SGTF), 436 B.1.351 and 352 P.1 to non-variant cases reported by seven European…”
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Biomarker associations with insomnia and secondary sleep outcomes in persons with and without HIV in the POPPY-Sleep substudy: a cohort study
Published in Sleep (New York, N.Y.) (12-12-2022)“…Abstract Study Objectives We investigated associations between inflammatory profiles/clusters and sleep measures in people living with HIV and…”
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Associations between host microbiome and inflammation suggest role for host microbiome in driving COVID-19 disease severity
Published in Microbes and infection (01-03-2024)“…Systemic inflammation and innate immune activation are associated with COVID-19 disease severity. Knowledge gaps remain in the relationships between…”
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Performance and validation of an adaptable multiplex assay for detection of serologic response to SARS-CoV-2 infection or vaccination
Published in Journal of immunological methods (01-11-2022)“…Measurement of quantitative antibody responses are increasingly important in evaluating the immune response to infection and vaccination. In this study we…”
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Distinct Inflammatory Phenotypes Are Associated With Subclinical and Clinical Cardiovascular Disease in People With Human Immunodeficiency Virus
Published in The Journal of infectious diseases (23-09-2024)“…Abstract Despite inflammation being implicated in cardiovascular disease (CVD) in people with human immunodeficiency virus (PWH), considerable heterogeneity…”
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IMUNOGENICIDADE DE UM PRIMEIRO REFORÇO COM BNT162B2 OU MRNA-1273 DE DOSE COMPLETA: UM ESTUDO RANDOMIZADO EM ADULTOS ≥75 ANOS (EU-COVAT-1) DO CONSÓRCIO VACCELERATE
Published in The Brazilian journal of infectious diseases (01-10-2023)“…A vacinação continua sendo crucial para a proteção contra a infecção grave pelo SARS-CoV-2, especialmente na população idosa. Avaliamos, em um estudo de fase…”
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Impact of vaccination and variants of concern on long COVID clinical phenotypes
Published in BMC infectious diseases (16-11-2023)“…Abstract Background Defining patterns of symptoms in long COVID is necessary to advance therapies for this heterogeneous condition. Here we aimed to describe…”
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1057. Development of a Flow Cytometry-Based Micro-Neutralisation Assay to Evaluate Humoral Immunity Against SARS-CoV-2 Variants of Concern in Vaccine Trials
Published in Open forum infectious diseases (15-12-2022)“…Abstract Background Quantifying neutralising capacity of circulating SARS-COV-2 antibodies is critical in evaluating protective humoral immune responses…”
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312. Performance and validation of an adaptable multiplex assay for detection of serologic response to SARS-CoV-2 infection or vaccination
Published in Open forum infectious diseases (15-12-2022)“…Abstract Background A wide array of assays to detect the serologic response to SARS-CoV-2 have been developed since the emergence of the pandemic. The majority…”
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