Category Archives: Cell biology, development and evolution

Rendre le cerveau résilient aux maladies neurodégénératives : une nouvelle piste identifiée dans la maladie de Huntington

Une équipe de recherche vient de mettre en évidence que les neurones du cerveau peuvent devenir sénescents très tôt dans la maladie de Huntington et que l’inhibition des gènes pro-sénescence possèdent des effets neuro-protecteurs. Ces travaux suggèrent que les neurones sont victimes d’un vieillissement cellulaire accéléré dans la maladie de Huntington et fournissent de nouvelles pistes thérapeutiques pour une intervention précoce contre cette maladie.

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Food Emulsifiers Increase Pathogenicity of Certain Bacteria and Risk of Intestinal Inflammation

Diet is believed to play a role in triggering intestinal inflammation that can lead to the development of certain conditions, such as Crohn’s disease. Researchers from Inserm, CNRS and Université de Paris have shown that the emulsifiers present in many processed foods could have a harmful impact on specific bacteria in the gut microbiota, leading to chronic inflammation.

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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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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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A New Blood Component Revealed

Does the blood we thought to know so well contain elements that had been undetectable until now? The answer is yes, according to a team of researchers which has revealed the presence of whole functional mitochondria in the blood circulation. These organelles that are responsible for cellular respiration had hitherto only been found outside cells in very specific cases.

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Skin graft: a new molecular target for activating stem cells

A joint study led by several teams open skin regeneration medecine to new insights.

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Assistance médicale à la procréation : la congélation embryonnaire associée à une augmentation du poids de naissance

Des équipes du CHU de Montpellier et de l’Inserm publient dans la revue Scientific Reports une étude portant sur une différence de poids de plus de 250 grammes entre les enfants nés à la suite d’une congélation embryonnaire et ceux issus d’embryons « frais ».

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Une étude confirme l’intérêt du test sanguin de dépistage des infections virales VirScan dans le suivi des patients greffés du rein

Le test sanguin VirScan permet de détecter les infections virales, responsables de complications tumorales et infectieuses, fréquentes après une greffe et susceptibles d’avoir un impact sur le fonctionnement du greffon.

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Fertility and endometriosis: a research update from Inserm

Today, around 1 in 8 couples seek help because they are struggling to conceive. Infertility has therefore become a public health problem, and the scientific community is rallying in response.

Also posted in Press releases, Immunology, inflammation, infectiology and microbiology, Circulation, metabolism, nutrition | Tagged | Comments closed

Nanoblades: shuttles for genome surgery

Researchers are now able to edit the genome with precision using the “gene editing scissors” of CRISPR-Cas9, which is a highly promising tool for gene therapy. The technical challenge now is to get this tool into the genome of certain cells. With this in mind, a joint team from Inserm, the CNRS, the Université Claude Bernard Lyon 1, and the École Normale Supérieure de Lyon, working within the International Center for Infectiology Research (CIRI), have developed capsules that allow CRISPR-Cas9 to reach the target DNA: Nanoblades.

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