Human gene variant produces attention deficit disorder-like problems in mice

Journal Reference: Eryn Donovan, Cassandra Avila, Sarah Klausner, Vinay Parikh, Cristina Fenollar-Ferrer, Randy D. Blakely, Martin Sarter. Disrupted choline clearance and sustained acetylcholine release in vivo by a common choline transporter coding variant associated with poor attentional control in humans. The Journal of Neuroscience, 2022; JN-RM-1334-21 DOI: 10.1523/JNEUROSCI.1334-21.2022 The study, led by researchers from the … Read more

Covid-19 : l’ombre du variant Omicron complique la reprise en Chine

Covid 19 lombre du variant Omicron complique la reprise en Chine

Une équipe médicale quitte la ville de Shenzhen, dans la province méridionale chinoise du Guangdong, le 16 mars 2022. WANG FENG / XINHUA VIA AFP Alors qu’elle a connu une fin de 2021 tendue, la Chine espérait sortir de son marasme économique, avec une épidémie de Covid-19 sous contrôle (malgré la tenue des Jeux olympiques … Read more

Antivirals, some antibodies, work well against BA.2 omicron variant of COVID-19 virus

Journal Reference: Emi Takashita, Noriko Kinoshita, Seiya Yamayoshi, Yuko Sakai-Tagawa, Seiichiro Fujisaki, Mutsumi Ito, Kiyoko Iwatsuki-Horimoto, Peter Halfmann, Shinji Watanabe, Kenji Maeda, Masaki Imai, Hiroaki Mitsuya, Norio Ohmagari, Makoto Takeda, Hideki Hasegawa, Yoshihiro Kawaoka. Efficacy of Antiviral Agents against the SARS-CoV-2 Omicron Subvariant BA.2. New England Journal of Medicine, 2022; DOI: 10.1056/NEJMc2201933 The BA.2 variant … Read more

COVID-19 genetic risk variant protects against HIV, study finds

Journal Reference: Hugo Zeberg. The major genetic risk factor for severe COVID-19 is associated with protection against HIV. Proceedings of the National Academy of Sciences, 2022; 119 (9): e2116435119 DOI: 10.1073/pnas.2116435119 Some people become seriously ill when infected with SARS-CoV-2 while others have only mild symptoms or no symptoms at all. In addition to risk … Read more

Behind a good mutation: How a gene variant protects against Alzheimer’s

Journal Reference: Christel Claes, Whitney E. England, Emma P. Danhash, Sepideh Kiani Shabestari, Amit Jairaman, Jean Paul Chadarevian, Jonathan Hasselmann, Andy P. Tsai, Morgan A. Coburn, Jessica Sanchez, Tau En Lim, Jorge L. S. Hidalgo, Christina Tu, Michael D. Cahalan, Bruce T. Lamb, Gary E. Landreth, Robert C. Spitale, Mathew Blurton‐Jones, Hayk Davtyan. The P522R … Read more

Study identifies mutations specific to Omicron variant

Journal Reference: Saathvik R. Kannan, Austin N. Spratt, Kalicharan Sharma, Hitendra S. Chand, Siddappa N. Byrareddy, Kamal Singh. Omicron SARS-CoV-2 variant: Unique features and their impact on pre-existing antibodies. Journal of Autoimmunity, 2022; 126: 102779 DOI: 10.1016/j.jaut.2021.102779 The findings help explain how the new variant can escape pre-existing antibodies present in the human body, either … Read more

Omicron variant: South Africa says peak has passed, without significant rise in death toll

Omicron variant South Africa says peak has passed without significant

At a Covid-19 test center in Johannesburg on December 8, 2021. DENIS FARRELL / AP South Africa, where the new variant of SARS-CoV-2 was detected last month, announced Thursday, November 30, that it had passed the peak of the Omicron wave without a significant increase in the number of deaths. “All the indicators suggest that … Read more

Covid-19: the Omicron variant continues to grow in Europe, new restrictions put in place

Covid 19 the Omicron variant continues to grow in Europe new

The pandemic is progressing more than ever in Europe. On Tuesday, December 28, France, the United Kingdom, Portugal, Denmark, Iceland and Greece recorded new daily records of Covid-19 cases. Read also Covid-19: nearly 180,000 new cases in one day in France, a level never reached In this context of the meteoric rise of the epidemic, … Read more

Covid : Omicron, vaccin “spécial variant”, 6e vague et pass vaccinal… À quoi va ressembler l’épidémie en 2022 ?

Covid Omicron vaccin special variant 6e vague et pass

Omicron va s’implanter durablement et prendre le dessus sur Delta dès les premières semaines de 2022. Face à ce nouveau variant, le conseil scientifique se projette pour les mois à venir sur la situation sanitaire dans le pays et partage l’évolution de la pandémie en France à l’horizon de l’été prochain. Omicron rebat les cartes … Read more

Omicron variant: the United States will reopen its borders to travelers from eight African countries on December 31

Omicron variant the United States will reopen its borders to

More than a month after the appearance of the Omicron variant in southern Africa, the United States is reopening its borders. Travel restrictions on eight African countries, which were imposed in late November in an attempt to slow the spread of this new variant, will be lifted from December 31, Twitter reported on Friday (December … Read more