Monthly Archives: November 2015

Monday 30 november 2015

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Tuesday 1 December: World AIDS Day

Acquired immune deficiency syndrome, or AIDS, is the most advanced stage of infection with HIV, a virus that attacks the cells of the immune system, and is characterised by the appearance of infections and certain cancers. To date, there is no way of curing this infection. It can, however, be controlled by antiretroviral therapy.

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Friday 27 november 2015

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Imagerie biomédicale à résolution microscopique : la révolution des ultrasons

Une équipe de l’Institut Langevin (ESPCI, CNRS, Inserm) dirigée par Mickaël Tanter, directeur de recherche Inserm à l’ESPCI, vient de franchir une étape déterminante vers l’imagerie médicale très haute résolution utilisant des ondes ultrasonores. Les chercheurs sont parvenus à rendre compte de l’activité vasculaire du cerveau d’un rat in vivo et de manière non invasive, avec une résolution bien meilleure que n’importe quelle technique existante. Loin de l’échographe standard, la technique s’inspire plutôt de la super résolution optique (FPALM) qui avait été récompensée du Prix Nobel de Chimie 2014. Leurs travaux, publiés dans la prestigieuse revue Nature, constituent une véritable révolution pour l’imagerie biomédicale, en offrant la première technique d’imagerie microscopique permettant de voir en profondeur dans les tissus. Les applications potentielles sont immenses, de la détection précoce de tumeurs cancéreuses à d’autres pathologies cardiovasculaires et neurologiques.

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Seasonal influenza: launch of the 5th season of

Spread of influenza remains low in metropolitan France according to the weekly bulletin of 25/11/15 from the Sentinelles network, an information system based on a network of 1,300 general practitioners, with the incidence of influenza-illness estimated at 24 cases per 100,000 inhabitants, i.e. below the epidemic threshold (149 cases per 100,000 inhabitants).

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Thursday 26 november 2015

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Wednesday 25 november 2015

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Current policies have failed to reduce the number of neural tube defects in Europe

Every year, nearly 5,000 pregnancies in Europe are affected by neural tube defects such as spina bifida and anencephaly (malformations of the brain and skull), with serious consequences for the newborn infants. Taking nutritional supplements containing folic acid (or vitamin B9) before and during early pregnancy may considerably reduce the risk, but studies show that only a minority of women do so. A study published today in The British Medical Journal, and coordinated by Babak Khoshnood, Inserm Research Director (Inserm Unit 1153 “Sorbonne Paris Cité Research Center in Epidemiology and Biostatistics”) concludes that there has been no decrease in neural tube defects over a 20-year period. The researchers urge the decision-makers to consider establishing a policy of mandatory folic acid fortification of some staple foods, such as flour or cereals.

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Gut Microbes Signal to the Brain When They’re Full

Don’t have room for dessert? The bacteria in your gut may be telling you something. Twenty minutes after a meal, gut microbes produce proteins that can suppress food intake in animals, reports a study published November 24 in Cell Metabolism. The researchers also show how these proteins injected into mice and rats act on the brain reducing appetite, suggesting that gut bacteria may help control when and how much we eat.

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Tuesday 24 november 2015

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