381 results match your criteria: "From Assistance Publique Hôpitaux de Marseille and Institut Hospitalo-Universitaire Méditerranée Infection[Affiliation]"

Background: Hypereosinophilic syndromes (HES) are a heterogenous group of eosinophilic disorders. To date, only retrospective studies of limited sample-size and/or follow-up duration are available.

Methods: The COHESion study is a national prospective multicenter multidisciplinary cohort recruiting both adults or children with the spectrum of eosinophilic disorders (including reactive HE/HES [HE/HES-R], idiopathic HES [HES-I], lymphocytic HES [HES-L], neoplastic HE/HES [HE/HES-N], HE of unknown significance [HE-US], as well as IgG4-related disease [IgG4RD] or ANCA-negative eosinophilic granulomatosis with polyangiitis [EGPA] overlaps).

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Epidemiological and genetic characteristics of clinical carbapenemase-producing Enterobacterales isolates from Batna hospitals in Algeria.

BMC Infect Dis

December 2024

Laboratoire de Biotechnologie des Molécules Bioactives et de la Physiopathologie Cellulaire (LBMBPC), Faculté des sciences de la Nature et de la vie, Université Batna 2, Batna, Algérie.

Background: Carbapenemase-producing Enterobacterales isolates are associated with significant mortality and have emerged as a major problem in healthcare settings worldwide.

Objective: Our aim was to investigate the epidemiological and genotypic characteristics of carbapenemase-positive Enterobacterales isolates from patients hospitalised in three hospitals in the city of Batna, Algeria.

Methods: Between 2016 and 2019, a total of 5,316 clinical isolates were obtained.

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: a comprehensive review.

J Oral Microbiol

November 2024

Aix-Marseille Université, Microbes Evolution, Phylogénie et Infection (MEPHI), Marseille, France.

Article Synopsis
  • The methanogenic archaea have been part of human oral microbiota since the Palaeolithic era and became more prevalent from the 18th century onward.
  • Initial isolation of this organism was achieved from dental plaque of healthy individuals, leading to studies focused on improving its laboratory culture methods.
  • Current identification techniques, including a specialized RTQ-PCR system, along with next-generation sequencing, have revealed its presence in various oral and extra-oral sites, highlighting its potential role in health and disease.
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Risk factors and influence of surgical technique on the risk of caesarean scar defect formation: A systematic review of the literature.

J Gynecol Obstet Hum Reprod

January 2025

Department of Obstetrics and Gynaecology, Nord Hospital, Assistance Publique des Hôpitaux de Marseille, Marseille, France; Institut Méditerranéen de Biodiversité et d'Écologie Marine et Continentale (IMBE), Aix Marseille University, CNRS, IRD, Avignon University, Marseille, France.

Objective: To determine the factors associated with an increased risk of cesarean scar defect formation.

Methods: A systematic literature search was performed up to July 2022 in PubMed databases following the PRISMA recommendations. All available English-language clinical studies presenting one or more factors that may affect the risk of cesarean scar defect were included.

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Article Synopsis
  • * This study analyzed cases of C bantiana infections in France and its territories, involving patients who were diagnosed through a comprehensive surveillance program, focusing on survival rates and the presence of central nervous system (CNS) involvement.
  • * Out of 23 patients identified from 2002 to 2022, 65% had CNS involvement, with a notable increase in cases reported in 2022, indicating a possible correlation with environmental factors like rising temperatures.
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Article Synopsis
  • * Using a cohort of over 3,600 participants, researchers measured levels of specific antibodies and assessed SARS-CoV-2 infection outcomes over the next six months.
  • * Results showed that higher anti-Spike IgG antibody levels correlated with reduced infection risk in the control group, but this was not the case for individuals in specific patient populations.
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Should We Give Antithrombotic Therapy to Patients With Infective Endocarditis?: A Serious Question, But Unresolved.

JACC Adv

February 2024

Microbes Evolution Phylogeny and Infection (MEPHI) Laboratory, Institut de Recherche Pour le Développement (IRD), Assistance Publique Hôpitaux de Marseille (APHM), Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Aix-Marseille University, Marseille, France.

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Background: The aim of this study was to assess the impact of immunosuppression management on coronavirus disease 2019 (COVID-19) outcomes.

Methods: We performed a single-center retrospective study in a cohort of 358 lung transplant recipients (LTx) over the period from March 2020 to April 2022. All included symptomatic patients had at least one positive SARS-CoV-2 rt-PCR.

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Interest of thoracic ultrasound after cardiac surgery or interventional cardiology.

World J Cardiol

March 2024

Service d'Explorations Fonctionnelles Respiratoires, Centre Hospitalier Universitaire Nord, Assistance Publique des Hôpitaux de Marseille, Marseille 13015, France.

Thoracic ultrasound has attracted much interest in detecting pleural effusion or pulmonary consolidation after cardiac surgery. In 2016, Trovato reported, in the , the interest of using, in addition to echocardiography, thoracic ultrasound. In this editorial, we highlight the value of assessing diaphragm function after cardiac surgery and interventional cardiology procedures.

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Features of cryptococcosis among 652 HIV-seronegative individuals in France: a cross-sectional observational study (2005-2020).

Clin Microbiol Infect

July 2024

Université Paris Cité, Department of Infectious Diseases and Tropical Medicine, Necker - Enfants Malades University Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), IHU Imagine, 75014 Paris, France; Mycology Department, Institut Pasteur, Université Paris Cité, National Reference Center for Invasive Mycoses and Antifungals, Mycology Translational Research Group, France.

Objectives: We aimed to describe features and outcomes of cryptococcosis among HIV-seronegative individuals in a large surveillance network for cryptococcosis in France.

Methods: We included incident cases of cryptococcosis in HIV-seronegative individuals from 2005 to 2020. We compared patient characteristics, disease presentations, cryptococcal antigen results, and induction antifungal treatments according to underlying disease.

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Etiology of Acute Febrile Illnesses in Adults in the Defense Community in French Guiana.

Am J Trop Med Hyg

April 2024

Aix Marseille Université, Institut de Recherche pour le Développement, Assistance Publique-Hôpitaux de Marseille, Service de Santé des Armées, Vecteurs - Infections Tropicales et Méditerranéennes, Marseille, France.

In tropical countries, acute febrile illnesses represent a complex clinical problem for general practitioners. We describe the prevalence of different etiologies of acute febrile illnesses occurring among French service members and their families, excluding children, in general practice in French Guiana. From June 2017 to March 2020, patients with a fever ≥37.

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Infections Differ Among Human Immunodeficiency Virus (HIV)-Seropositive and HIV-Seronegative Individuals: Results From a Nationwide Surveillance Program in France.

Open Forum Infect Dis

February 2024

Department of Infectious Diseases and Tropical Medicine, Université Paris Cité, Necker-Enfants Malades University Hospital, Assistance Publique-Hôpitaux de Paris, Institut Hospitalo-Universitaire Imagine, Paris, France.

Among 1107 cryptococcosis cases from the French surveillance network (2005-2020), the proportion of HIV-seronegative individuals has recently surpassed that of HIV-seropositive individuals. We observed marked differences in patient characteristics, disease presentations, cryptococcal antigen results, infecting species, and mortality according to HIV serostatus.

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Hydrocortisone plus fludrocortisone for community acquired pneumonia-related septic shock: a subgroup analysis of the APROCCHSS phase 3 randomised trial.

Lancet Respir Med

May 2024

Department of Intensive Care, Raymond Poincaré Hospital, APHP University Versailles Saint Quentin-University Paris Saclay, Garches, France; Institut Hospitalo Universitaire PROMETHEUS, Garches, France; Laboratory of Infection & Inflammation-U1173, School of Medicine, INSERM, University Versailles Saint Quentin-University Paris Saclay, Garches, France; FHU SEPSIS, Garches, France. Electronic address:

Article Synopsis
  • The study explores the effectiveness of hydrocortisone and fludrocortisone treatments in patients with septic shock caused by community-acquired pneumonia (CAP) compared to non-CAP cases.
  • It includes data from the phase 3 APROCCHSS trial, which initially tested these treatments across multiple centers in France, focusing specifically on how they impact mortality outcomes.
  • Results indicate that patients with CAP may respond differently to these treatments, and various mortality rates and recovery metrics were analyzed to determine the overall benefit of the steroid regimen.
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Influence of Microbiota on Clinical Expressions of Respiratory Viral Infections.

Am J Trop Med Hyg

February 2024

Aix Marseille Université, Institut de recherche pour le développement, Assistance Publique - Hôpitaux de Marseille, Microbes, Évolution, Phylogénie et Infection, Institut Hospitalo-Universitaire Méditerranée-Infection, Marseille, France.

Article Synopsis
  • Respiratory infections, primarily caused by viruses, are a major health issue globally, and a study was conducted in rural Senegal to investigate the presence of viruses and bacteria in symptomatic and asymptomatic individuals.
  • The research found that 83.6% of symptomatic individuals tested positive for at least one respiratory virus, with influenza A, metapneumovirus, and enterovirus being notably more common among those with symptoms, while 21.8% of asymptomatic individuals also had viral infections.
  • Additionally, 82.0% of symptomatic subjects carried at least one respiratory bacterium, with Moraxella catarrhalis and Streptococcus pneumoniae being the most common, highlighting the need for further surveillance of these pathogens
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Arthropod-Borne Viruses in Mauritania: A Literature Review.

Pathogens

November 2023

Unité de Recherche Génomes et Milieux, Faculté des Sciences et Techniques, Université de Nouakchott, Nouakchott BP 880, Mauritania.

During the past four decades, recurrent outbreaks of various arthropod-borne viruses have been reported in Mauritania. This review aims to consolidate the current knowledge on the epidemiology of the major arboviruses circulating in Mauritania. Online databases including PubMed and Web of Science were used to retrieve relevant published studies.

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The intracellular bacterial pathogen Coxiella burnetii evades the host response by secreting effector proteins that aid in establishing a replication-friendly niche. Bacterial filamentation induced by cyclic AMP (Fic) enzymes can act as effectors by covalently modifying target proteins with the posttranslational AMPylation by transferring adenosine monophosphate (AMP) from adenosine triphosphate (ATP) to a hydroxyl-containing side chain. Here we identify the gene product of C.

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Femoro-Popliteal Bypass Infection: A Case Report.

Microorganisms

August 2023

UMR MEPHI, Institut Hospitalo-Universitaire Méditerranée Infection, Institut de la Recherche pour le Développement, Assistance Publique-Hôpitaux de Marseille, Aix-Marseille Université, 13005 Marseille, France.

Cardiovascular infections are the most severe and potentially lethal among the persistent focalized infections. While aortic infections on aneurysms or prostheses are well-known, with specific complications (risk of fatal rupture), new non-aortic vascular infections are increasingly being described thanks to the emerging use of 18-fluorodeoxyglucose positron emission tomography (F-FDG PET-scan). Here, we describe an infection of a femoro-popliteal bypass that would not have been diagnosed without the use of PET-scan.

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West Africa faced the COVID-19 pandemic in early March 2020 and, as of March 31, 2022, had more than 900,000 confirmed cases and more than 12,000 deaths. During this period, SARS-CoV-2 genomes evolved genetically, resulting in the emergence of distinct lineages. This review was conducted to provide the epidemiological profile of COVID-19, the mutational profile of SARS-CoV-2, and the dynamics of its lineages in the 16 west African countries by analyzing data from 33 studies and seven situation reports.

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Metallo-Beta-Lactamase-like Encoding Genes in Candidate Phyla Radiation: Widespread and Highly Divergent Proteins with Potential Multifunctionality.

Microorganisms

July 2023

Microbes, Evolution, Phylogénie et Infection (MEPHI), Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille University, 13005 Marseille, France.

Article Synopsis
  • * An in silico study was conducted to analyze these proteins by comparing their characteristics to known MBLs, revealing that CPR sequences are longer, more diverse, and rich in functional domains than those found in bacteria.
  • * Most CPR MBL-like sequences lacked connections to already expressed MBLs, hinting at many unknown functions, suggesting that further research is needed to fully understand their roles and evolutionary backgrounds.
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[Febrile splenomegaly].

Rev Med Interne

December 2023

Service de médecine interne, gériatrie et thérapeutique, CHU la Timone, Assistance publique-Hôpitaux de Marseille (AP-HM), 264, rue Saint-Pierre, 13385 Marseille cedex 05, France; Inra 1260, Inserm UMR_S 1263, centre de recherche en cardiovasculaire et nutrition (C2VN), Aix-Marseille University, Marseille, France.

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Cultivation of Asexual Intraerythrocytic Stages of .

Pathogens

July 2023

Aix-Marseille Université, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Service de Santé des Armées (SSA), Unité Mixte de Recherche (UMR) Vecteurs-Infections Tropicales et Méditerranéennes (VITROME), 13005 Marseille, France.

Successfully developed in 1976, the continuous in vitro culture of has many applications in the field of malaria research. It has become an important experimental model that directly uses a human pathogen responsible for a high prevalence of morbidity and mortality in many parts of the world and is a major source of biological material for immunological, biochemical, molecular, and pharmacological studies. Until present, the basic techniques described by Trager and Jensen and Haynes et al.

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Vimentin: from a cytoskeletal protein to a critical modulator of immune response and a target for infection.

Front Immunol

October 2023

Aix Marseille Univ, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France.

Vimentin is an intermediate filament protein that plays a role in cell processes, including cell migration, cell shape and plasticity, or organelle anchorage. However, studies from over the last quarter-century revealed that vimentin can be expressed at the cell surface and even secreted and that its implications in cell physiology largely exceed structural and cytoskeletal functions. Consequently, vimentin contributes to several pathophysiological conditions such as cancer, autoimmune and inflammatory diseases, or infection.

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Identification and Characterization of an HtrA Sheddase Produced by .

Int J Mol Sci

June 2023

Microbes Evolution Phylogeny and Infection (MEPHI) Laboratory, Aix-Marseille University, Institut de Recherche Pour le Développement (IRD), Assistance Publique Hôpitaux de Marseille (APHM), Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, 13005 Marseille, France.

Having previously shown that soluble E-cadherin (sE-cad) is found in sera of Q fever patients and that infection of BeWo cells by leads to modulation of the E-cad/β-cat pathway, our purpose was to identify which sheddase(s) might catalyze the cleavage of E-cad. Here, we searched for a direct mechanism of cleavage initiated by the bacterium itself, assuming the possible synthesis of a sheddase encoded in the genome of or an indirect mechanism based on the activation of a human sheddase. Using a straightforward bioinformatics approach to scan the complete genomes of four laboratory strains of , we demonstrate that encodes a 451 amino acid sheddase (CbHtrA) belonging to the HtrA family that is differently expressed according to the bacterial virulence.

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