536 results match your criteria: "National Institute for Infectious Diseases "L. Spallanzani" IRCCS[Affiliation]"

Introduction: Tuberculosis (TB) risk associated with tumor necrosis factor-alpha (TNF-α) antagonist therapy in patients with autoimmune diseases is a significant concern. This study aims to evaluate the risk of TB disease associated with TNF-α antagonist therapy.

Methods: An extensive search of PubMed/MEDLINE, EMBASE, and the Cochrane CENTRAL databases was conducted to identify randomized controlled trials (RCTs) assessing TB disease risk in patients receiving TNF-α antagonist therapy available until November 1, 2024.

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  • γδ T-cells play a crucial role in immune surveillance following HLA-Haploidentical Stem Cell Transplantation (haplo-HSCT), especially in pediatric patients.
  • A study showed that a specific subset of Vδ2 T-cells is associated with better antiviral protection, as these cells were more prevalent in patients who did not experience viral reactivation.
  • The research highlights how Vδ2 T-cells can inhibit CMV replication and enhance the immune response, suggesting their potential use in immunotherapy post-transplantation to combat both infections and tumors.
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Despite the tremendous advancements in the knowledge of the pathophysiology and clinical aspects of SARS-CoV-2 infection, still many issues remain unanswered, especially in the long-term effects. Mounting evidence suggests that pulmonary fibrosis (PF) is one of the most severe complications associated with COVID-19. Therefore, understanding the molecular mechanisms behind its development is helpful to develop successful therapeutic strategies.

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Skin microbiota plays an essential role in the development and function of the cutaneous immune system, in the maintenance of the skin barrier through the release of antimicrobial peptides, and in the metabolism of some natural products. With the aim of characterizing changes in the cutaneous microbiota specifically associated with wound healing in the diabetic condition, we performed a 16 S rRNA gene Next Generation Sequencing of skin swabs taken within the ulcer bed of ten diabetic patients before (t0) and after 20 days of therapy (t20) with a fluorescein-based galenic treatment. Considering the twenty most representative genera, we found at t20 an increase of Corynebacterium, Peptostreptococcus, and Streptococcus, and a decrease of Enterococcus, Finegoldia, and Peptoniphilus genera.

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Oropouche virus: A re-emerging arbovirus of clinical significance.

Int J Infect Dis

December 2024

NIHR Health Protection Research Unit in Emerging Zoonotic Infections, UK; Diagnostics and Pathogen Characterisation, UK Health Security Agency, Porton Down, Salisbury, UK.

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In July 2024, poliovirus was identified in Gaza, prompting the World Health Organization (WHO) to issue a warning regarding the potential for polio to spread in the region [...

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Signatures of neurodegeneration in clinical samples from a subject with multiple sclerosis (MS) acutely infected with HIV were investigated with single-cell transcriptomics using 10X Chromium technology. Sequencing was carried out on NovaSeq-TM, and the analysis was performed with Cell Ranger software (v 7.1.

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HEV-3 subtypes and strains detected in cases of HEV infection in central Italy from 2015 to 2023.

Infection

September 2024

Viral Hepatitis and Oncovirus and Retrovirus Diseases Unit, Department of Infectious Diseases, Istituto Superiore di Sanità, Rome, 00161, Italy.

Purpose: HEV is an emerging pathogen in Europe and was previously shown to be hyperendemic in areas of Abruzzo and Lazio, Central Italy. No systematic analysis of the HEV strains responsible for human infections over several years in Central Italy has previously been reported. Aim of the study was the molecular characterization of HEV from autochthonous hepatitis E cases occurred in Abruzzo and Lazio between 2015 and 2023.

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Autophagy initiation is regulated by the ULK1 kinase complex. To gain insights into functions of the holo-complex, we generated a deep interactome by combining affinity purification- and proximity labeling-mass spectrometry of all four complex members: ULK1, ATG13, ATG101, and RB1CC1/FIP200. Under starvation conditions, the ULK1 complex interacts with several protein and lipid kinases and phosphatases, implying the formation of a signalosome.

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Neurocysticercosis (NCC) is caused by the larval stage of . This parasitic disease is endemic in many areas of the world and is emerging in Europe. NCC can affect different brain regions, but simultaneous involvement of the parenchymal, subarachnoid, and ventricular regions is rare.

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Aging is a gradual and irreversible physiological process that significantly increases the risks of developing a variety of pathologies, including neurodegenerative, cardiovascular, metabolic, musculoskeletal, and immune system diseases. Mitochondria are the energy-producing organelles, and their proper functioning is crucial for overall cellular health. Over time, mitochondrial function declines causing an increased release of harmful reactive oxygen species (ROS) and DNA, which leads to oxidative stress, inflammation and cellular damage, common features associated with various age-related pathologies.

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HLA alleles associated to susceptibility to gliptin-associated bullous pemphigoid in Italian patients.

HLA

August 2024

Molecular and Cell Biology Laboratory, Istituto Dermopatico dell'Immacolata (IDI)-IRCCS, Rome, Italy.

Article Synopsis
  • Bullous pemphigoid (BP) is a rare autoimmune skin disorder, becoming more frequent with associations noted with certain diabetes medications called gliptins.
  • A study analyzed 30 idiopathic bullous pemphigoid (IBP) patients and 86 gliptin-associated BP (GABP) patients to explore genetic risk factors.
  • The research found a significant link between the HLA-DQB1*03:01 allele and both IBP and GABP, suggesting genetic markers that could indicate susceptibility to BP, particularly in individuals who have taken gliptins.
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  • The study focused on the effectiveness of tixagevimab/cilgavimab (T/C) as pre-exposure prophylaxis (PrEP) in immunocompromised individuals, categorizing them into groups based on their COVID-19 history.
  • A total of 231 participants were included, with a significant portion having hematological diseases and receiving multiple vaccine doses; breakthrough infections (BTIs) occurred in 56 participants (24%) but were mostly mild to moderate.
  • Immune markers were measured over time, showing an initial increase in anti-RBD IgG antibodies at 3 months, a decline at 6 months, and low neutralizing antibodies, reinforcing T/C's clinical efficacy in reducing severe COVID-19
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Torque Teno Virus (TTV) is a ubiquitous component of the human virome, not associated with any disease. As its load increases when the immune system is compromised, such as in kidney transplant (KT) recipients, TTV load monitoring has been proposed as a method to assess immunosuppression. In this prospective study, TTV load was measured in plasma and urine samples from 42 KT recipients, immediately before KT and in the first 150 days after it.

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Introduction to the Special Issue on Infection, Second Edition.

Antibiotics (Basel)

June 2024

Clinical and Research Department for Infectious Diseases, National Institute for Infectious Diseases L. Spallanzani, IRCCS, 00149 Rome, Italy.

(CD) is a Gram-positive, anaerobic bacterium that is one of the most common causes of infective diarrhoea worldwide [...

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The issue of bacterial infections in COVID-19 patients has received increasing attention. Scant data are available on the impact of bacterial superinfection and antibiotic administration on the outcome of hospitalized COVID-19 patients. We conducted a literature review from 1 January 2022 to 31 March 2024 to assess the current burden of bacterial infection and the evidence for antibiotic use in hospitalized COVID-19 patients.

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  • Meropenem-vaborbactam is a new treatment option for infections caused by KPC-producing Klebsiella pneumoniae, particularly those resistant to ceftazidime-avibactam.
  • A study of 342 patients across 19 hospitals in Italy evaluated the outcomes of those treated with meropenem-vaborbactam, finding a 30-day mortality rate of 31.6%.
  • The research identified risk factors for higher mortality, including septic shock, significant comorbidities, and delayed treatment, while the administration of the drug within 48 hours of infection onset was linked to better outcomes.
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Molnupiravir, an oral direct-acting antiviral effective in vitro against SARS-CoV-2, has been largely employed during the COVID-19 pandemic, since December 2021. After marketing and widespread usage, a progressive increase in SARS-CoV-2 lineages characterized by a higher transition/transversion ratio, a characteristic signature of molnupiravir action, appeared in the Global Initiative on Sharing All Influenza Data (GISAID) and International Nucleotide Sequence Database Collaboration (INSDC) databases. Here, we assessed the drug effects by SARS-CoV-2 whole-genome sequencing on 38 molnupiravir-treated persistently positive COVID-19 outpatients tested before and after treatment.

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Human and viral microRNAs (miRNAs) are involved in the regulation of gene transcription, and the establishment of their profiles in acute (AHI) and chronic (CHI) HIV infections may shed light on the pathogenetic events related to different phases of HIV disease. Next-generation sequencing (NGS) of miRNA libraries was performed, and the reads were used to analyze miRNA differential expression in the plasma with AHI and CHI. Functional analysis was then undertaken to investigate the biological processes characterizing the two phases of HIV infection.

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We determined the impact of the COVID-19 pandemic on mycobacterial diagnostic services. 40 laboratories from 22 countries completed an online questionnaire covering the redeployment of the laboratory infrastructure and/or staff for SARS-CoV-2 testing, staff shortages and supply chain disruptions. 28 laboratories reported monthly numbers of samples processed for mycobacterial investigations and monthly numbers of M.

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Introduction: New diagnostic tools are needed to rapidly assess the efficacy of pulmonary tuberculosis (PTB) treatment. The aim of this study was to evaluate several immune biomarkers in an observational and cross-sectional cohort study conducted in Paraguay.

Methods: Thirty-two patients with clinically and microbiologically confirmed PTB were evaluated before starting treatment (T0), after 2 months of treatment (T1) and at the end of treatment (T2).

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