Individual small RNAs are responsible for controlling the expression of gonadoliberin or GnRH (Gonadotropin-Releasing Hormone), a neurohormone that controls sexual maturation, the appearance of puberty, and fertility in adults. This has just been demonstrated by the “Development and Plasticity of the Neuroendocrine Brain” team led by Vincent Prévot, Inserm Research Director (Jean-Pierre Aubert Research Centre, Lille). The involvement of microRNAs, transcribed from DNA, occurs around birth, and marks a...
Nadine Dragin, a researcher from an Inserm/UPMC/CNRS/AIM team codirected by Sonia Berrih-Aknin and Rozen le Panse at the Institute of Myology, based at Pitié-Salpêtrière Hospital, AP-HP, has demonstrated the central role of AIRE, a key factor in immune tolerance, in the unequal impact of autoimmune diseases on men and women. This work, published in The Journal of Clinical Investigation on 1 April 2016, was funded by AFM-Téléthon.
A research team from Paris Descartes University, Inserm and Sainte-Anne Hospital, led by Professor Marie-Odile Krebs, has demonstrated that epigenetic modifications accompany the onset of a psychotic episode in a cohort of young at-risk people aged 15–25 years. These modifications compromise systems for responding to oxidative stress and inflammation. Through this new work, the researchers have shed new light on this disease, for which the main biological explanation, before...
The European Commission is legally required to provide criteria identifying Endocrine Disrupting Chemicals (EDCs), a process that has been blocked for almost three years, allegedly because of a lack of scientific consensus and because an impact assessment study was deemed necessary. Now, a group of 7 independent researchers from universities and research institutions from Europe and the United States* show how little controversy there is around the definition of...
In the last two years, nearly 2 million people have been infected with the Zika virus in Latin America and the Caribbean. At the end of 2015, REACTing and members of the Aviesan alliance immediately became involved, particularly Inserm, Institut Pasteur, the Institute for Development Research (IRD), the French Blood Transfusion Service and the associated university hospitals. Initial contact was made with Brazilian researchers from Fiocruz in November 2015....
An international team, including researchers in France at Inserm, CNRS and the University of Strasbourg, brought together at IGBMC[1] is lifting the veil on the molecular mechanisms causing heart dysfunctions in myotonic dystrophy, a genetic disease affecting one person in 8,000. This new study, published this week in Nature Communications, could contribute to discovering a treatment.
Treatments available for glioblastoma—malignant brain tumors—have little effect. An international collaboration[1] led by the Laboratoire Neurosciences Paris-Seine (CNRS/ INSERM/UPMC)[2] tested active ingredients from existing medications and eventually identified one compound of interest, prazosin, on these tumors. Not only did it seem to be effective in this type of cancer, but it also acted on a signaling pathway that is common with other cancers. These promising findings are available online...
A patient paralysed in his hands and legs is able to use his hand through a device able to restore communication between the brain and muscles, bypassing the spinal cord. According to the French Press Association, a chip containing 96 electrodes, implanted in the patient's brain, transmits the quadriplegic man's thoughts to a computer that decodes them and sends commands to a sleeve that stimulates the muscles in the...
A study by researchers from Inserm, the Paris Public Hospitals (Bichat Hospital, AP-HP), Aix-Marseille University, and the National Reference Centre for Arboviruses confirms that the ZIKA virus can be transmitted sexually. Their analyses have shown 100% genetic correlation between the form of the virus present in a man who contracted the virus in Brazil and that of a woman who had never travelled in the epidemic area, but who...
Haemophilia is a hereditary disease characterised by bleeding due to a deficiency of coagulation factors. Haemophilia A is the most widespread form, affecting one in every 5,000 boys born.