Publications by authors named "Bellanger A"

Unlabelled: Intestinal microsporidiosis caused by is an opportunistic infection that especially affects solid organ transplant (SOT) recipients. Management revolves around tapering the immunosuppressive regimen and/or using a specific anti-microsporidia treatment, but only fumagillin has demonstrated efficacy for treatment of this infection. Since fumagillin has been commercially discontinued, nitazoxanide is increasingly being used in this indication.

View Article and Find Full Text PDF
Article Synopsis
  • * Results show significant differences in the microstructure and proteolysis rates of HM and IF, with IF being digested faster than HM, especially in the stomach and early intestine.
  • * The findings indicate a strong correlation between in vitro and in vivo digestion outcomes, suggesting that in vitro models can effectively mimic the digestive process of HM in a living organism.
View Article and Find Full Text PDF

This study investigates the diagnostic practices for mucormycosis among 30 French University Hospital mycology laboratories, in 2024. All laboratories perform both direct examination and culture, with fluorescent brighteners being the most commonly used method for direct examination. While 77 % of the participating laboratories routinely identify Mucorales to the species level, with 70 % having adopted Mucorales-specific quantitative PCR, primarily for the diagnosis of invasive fungal infections.

View Article and Find Full Text PDF

A commercial loop-mediated isothermal amplification (LAMP) assay is available for the detection of Pneumocytis jirovecii (Eazyplex®, Amplex diagnostics, Germany). Few centers currently use this LAMP assay in France. Recently, the commercialization of reagents used to perform the P.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates allergic bronchopulmonary mycoses (ABPM) in patients with cystic fibrosis, focusing on specific IgE responses to five non-Aspergillus molds.
  • Researchers analyzed serum samples from 238 patients across several European countries, finding higher levels of specific IgE in these patients compared to healthy controls.
  • The findings highlight the need for improved diagnostic tools for ABPM, as several cases were identified using a new scoring system, emphasizing the importance of non-A. fumigatus molds in these conditions.
View Article and Find Full Text PDF
Article Synopsis
  • Candida auris is a growing threat to healthcare facilities globally, necessitating systematic screening for patients from high-risk areas to prevent widespread outbreaks.
  • A study analyzing responses from 36 French mycologists found that only 30.6% were aware of any systematic screening protocols for C. auris in their hospitals.
  • Most post-admission screening focused on specific body sites, but only a small percentage utilized specialized testing methods, highlighting the need for increased awareness and better practices among healthcare professionals regarding systematic screening for this pathogen.
View Article and Find Full Text PDF

Alveolar echinococcosis (AE) is a rare but severe disease that affects more than 18,000 people worldwide per year. The complete sequencing of the mitochondrial genome of Echinococcus multilocularis has made it possible to study the genetic diversity of the parasite and its spatial and temporal evolution. We amplified the whole mitochondrial genome by PCR, using one uniplex and two multiplex reactions to cover the 13,738 bp of the mitogenome, and then sequenced the amplicons with Illumina technology.

View Article and Find Full Text PDF

Aim: Chronic obstructive pulmonary disease (COPD) is characterized by progressive airflow obstruction and development of emphysema. Among the comorbidities associated with COPD, skeletal muscle dysfunction is known to affect exercise capacity and the survival rate of patients. Pulmonary rehabilitation (PR), via exercise training, is essential for COPD patients.

View Article and Find Full Text PDF
Article Synopsis
  • Several lateral flow assays (LFA) for detecting Aspergillus fumigatus in serum and broncho-alveolar lavage fluid (BALF) were evaluated for their effectiveness and speed between June 2022 and February 2023.
  • The study tested three LFAs—Sõna Aspergillus galactomannan LFA, Fungadia Aspergillus antigen, and AspLFD—comparing their results against traditional testing methods like the galactomannan enzyme immunoassay and culture techniques.
  • Out of 97 BALF samples from 92 patients, most tested negative with the LFAs, but the AspLFD assay showed some unique positive results, while the OLM assay had the simplest protocol
View Article and Find Full Text PDF

Differentiation of adipose progenitor cells into mature adipocytes entails a dramatic reorganization of the cellular architecture to accommodate lipid storage into cytoplasmic lipid droplets. Lipid droplets occupy most of the adipocyte volume, compressing the nucleus beneath the plasma membrane. How this cellular remodeling affects sub-nuclear structure, including size and number of nucleoli, remains unclear.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Our objective was to determine whether the twice-weekly screening of high-risk hematology patients by Mucorales qPCR on serum affects the prognosis of mucormycosis. Results from all serum Mucorales qPCR tests performed on patients from the hematology unit from January 2017 to December 2022 were analyzed. Patients with positive results were classified as having proven, probable or 'PCR-only' mucormycosis.

View Article and Find Full Text PDF

The human milk (HM) microbiota, a highly diverse microbial ecosystem, is thought to contribute to the health benefits associated with breast-feeding, notably through its impact on infant gut microbiota. Our objective was to further explore the role of HM bacteria on gut homeostasis through a "disassembly/reassembly" strategy. HM strains covering the diversity of HM cultivable microbiota were first characterized individually and then assembled in synthetic bacterial communities (SynComs) using two human cellular models, peripheral blood mononuclear cells and a quadricellular model mimicking intestinal epithelium.

View Article and Find Full Text PDF

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.

View Article and Find Full Text PDF

Breast cancer entails intricate alterations in genome organization and expression. However, how three-dimensional (3D) chromatin structure changes in the progression from a normal to a breast cancer malignant state remains unknown. To address this, we conducted an analysis combining Hi-C data with lamina-associated domains (LADs), epigenomic marks, and gene expression in an model of breast cancer progression.

View Article and Find Full Text PDF

Background & Aims: There is concern about the burden of liver injury in patients with cancer exposed to immune checkpoints inhibitors (ICIs).

Methods: In a retrospective cohort study, we evaluated the likelihood of grade 3/4 liver injury, of grade 3/4 cholestatic liver injury, and of liver failure, as per the Common Terminology Criteria for Adverse Events (CTCAE) version 5, following treatment with ICIs. We compared these occurrences with a group of cancer patients who were propensity-matched and treated with conventional chemotherapy.

View Article and Find Full Text PDF

Although biosimilar uptake has increased (at a variable pace) in many countries, there have been recent concerns about the long-term sustainability of biosimilar markets. The aim of this manuscript is to assess the sustainability of policies across the biosimilar life cycle in selected countries with a view to propose recommendations for supporting biosimilar sustainability. The study conducted a comparative analysis across 17 countries from North America, South America, Asia-Pacific, Europe and the Gulf Cooperation Council.

View Article and Find Full Text PDF

Objectives: We aimed to describe patients with autoimmune diseases (AID) developing invasive fungal disease (IFD) and identify factors associated with short-term mortality.

Methods: We analysed cases of IFD associated with AID from the surveillance network of invasive fungal diseases (Réseau de surveillance des infections fongiques invasives, RESSIF) registry of the French national reference centre for invasive mycoses. We studied association of AID-specific treatments with 30-day mortality.

View Article and Find Full Text PDF

Unlabelled: Only previous glucocorticoid use and rheumatoid arthritis were predictors of an early fracture (< 2 years after inclusion). A shorter 'time to first fracture' was not an independent clinical risk factor for imminent fractures.

Purpose: Risk factors for fragility fractures independent of BMD were assessed in several prediction models.

View Article and Find Full Text PDF

Neonatal screening has excellent coverage in France. Data from the foreign literature raise questions about the informed consent to this screening. The Neonatal Screening and Informed Consent (DENICE) study was designed to assess whether information on neonatal screening provided for families in Brittany allows for informed consent.

View Article and Find Full Text PDF

Alveolar echinococcosis (AE) is a parasitosis that is expanding worldwide, including in Europe. The development of genotypic markers is essential to follow its spatiotemporal evolution. Sequencing of the commonly used mitochondrial genes cob, cox1, and nad2 shows low discriminatory power, and analysis of the microsatellite marker EmsB does not allow nucleotide sequence analysis.

View Article and Find Full Text PDF

Background: Infant formula (IF) has to provide at least the same amount of amino acids (AAs) as human milk (HM). AA digestibility in HM and IF was not studied extensively, with no data available for tryptophan digestibility.

Objectives: The present study aimed to measure the true ileal digestibility (TID) of total nitrogen and AAs in HM and IF to estimate AA bioavailability using Yucatan mini-piglets as an infant model.

View Article and Find Full Text PDF

Background: The skin aging process is defined as the gradual degradation of several skin properties such as firmness, color, or the appearance of wrinkles. These properties can be assessed by trained experts, who perform an overall evaluation of the entire face.

Objective: The objective of this paper is the construction of two Global Skin Aging Indices specifically designed to model the overall skin aging process of Caucasian and Asian women.

View Article and Find Full Text PDF