Category Archives: Genetics, genomics and bioinformatics

Les émulsifiants alimentaires augmentent le pouvoir pathogène de certaines bactéries et le risque d’inflammation intestinale

L’alimentation jouerait un rôle dans le déclenchement d’inflammations intestinales pouvant aboutir au développement de certaines pathologies, comme la maladie de Crohn. Des chercheurs de l’Inserm, du CNRS et de Université de Paris ont montré que les émulsifiants alimentaires présents dans de nombreux plats transformés pouvaient avoir un impact délétère sur certaines bactéries spécifiques du microbiote intestinal, conduisant à une inflammation chronique.

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A New Therapeutic Target for Type 2 Diabetes Discovered Thanks to a Rare Disease

A new therapeutic target for type 2 diabetes has recently been identified by researchers from Inserm and Université de Strasbourg, in collaboration with several European hospitals.

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The Placenta Could Retain a Memory of Tobacco Exposure Prior to Pregnancy

A study is showing for the first time that tobacco consumption, even when stopped before pregnancy, can have an impact on the placenta. Smoking not just during but also before pregnancy leads to epigenetic modifications (DNA methylation) which could have consequences on its course.

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Covid-19 : 15 % des formes graves de la maladie s’expliquent par des anomalies génétiques et immunologiques

Image de microscopie du Coronavirus SARS-CoV-2 responsables de la maladie COVID-19 accrochés aux cellules épithéliales respiratoires humaines

Pourquoi la réponse individuelle à l’infection par le virus SARS-CoV2 varie-t-elle autant d’une personne à l’autre ? Résoudre ce mystère permettrait d’identifier les patients à risque, d’anticiper et d’améliorer leur prise en charge et d’offrir de nouvelles voies thérapeutiques fondées sur une meilleure compréhension de la maladie. L’équipe franco-américaine, dirigée conjointement par Jean-Laurent Casanova et Laurent Abel, a identifié les premières causes génétiques et immunologiques expliquant 15% des forme graves de Covid-19.

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A Novel Genome Editing Tool for Rare Hereditary Diseases

Researchers from Inserm, Université d’Evry, Université Paris-Saclay and Genethon have developed a novel platform for modifying the genome of hematopoietic stem cells, which give rise to blood cells. The use of these tools could provide new therapeutic solutions for many patients with rare genetic diseases.

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Type 1 Interferon Deficiency: A Blood based Signature for Detecting Patients at Risk of Severe Covid-19

Image de microscopie du Coronavirus SARS-CoV-2 responsables de la maladie COVID-19 accrochés aux cellules épithéliales respiratoires humaines

In a study published in Science on July 13, teams from AP-HP, Inserm, Université of Paris, Institut Pasteur and Institut Imagine describe a unique and unexpected immunological phenotype in severe and critical patients, consisting of a severely impaired response of interferon (IFN) type I, associated with a persistent blood viral load and an excessive inflammatory response.

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Blood Stem Cell Immune Memory: A New Research Avenue in COVID-19

Blood stem cells have a surprising ability. In addition to ensuring the continuous renewal of blood cells, they keep track of past infections so that faster and more effective immune responses can be triggered in the future.

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Rapid Genome Analysis Aids Diagnosis of Neonatal ICU Patients

Teams from Dijon-Bourgogne University Hospital, Inserm and CEA have recently established the results of the whole-genome analysis of severely ill neonates, hospitalized in neonatal ICUs – the time of which was slashed from the current 18-month average to just 38 days.

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Rôle des consultations génétiques dans le diagnostic des enfants et des adolescents atteints de troubles du spectre de l’autisme

Les recherches sur l’origine génétique des troubles du spectre de l’autisme (TSA) se sont significativement développées ces dernières années. Cependant, de nombreux patients concernés n’en bénéficient pas encore systématiquement. Une étude met en évidence l’intérêt d’étendre le dépistage génétique à un nombre plus important de patients souffrant de TSA avec déficit intellectuel.

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A Gene Therapy Tested in the Treatment of Myotubular Myopathy

Inserm and CNRS researchers from the Institute of Genetics and Molecular and Cellular Biology (Inserm/CNRS/Université de Strasbourg) have discovered how myotubularin – a protein deficient in myotubular myopathy – interacts with amphiphysin 2 and suggest targeting the latter in order to treat patients.

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