Les développements de l’immunologie Qui n’a pas constaté cette augmentation des phénomènes allergiques tels que l’eczéma, les rhinites, l’asthme et plus encore le développement des maladies auto-immunes dans lesquels bizarrement des agents destructeurs se tournent contre les propres cellules de l’individu et produisent des maladies comme : le lupus, la sclérose en plaques ou encore le diabète. Comprendre ces mécanismes intimes c’est l’enjeu du professeur David Klatzmann , professeur d’immunologie, qui démontre l’importance des cellules comme les lymphocytes dont l’équilibre ou le déséquilibre peut entraîner une bascule. Autre thématique : les fausses couches à répétition qui montre une diminution de la tolérance immunitaire classique et souhaitable au cours de la grossesse puisqu’elle permet de ne pas rejeter un hôte cellulaire pourtant étranger puisqu’il provient toujours d’un humain masculin.
Proofread Bot Scientists engineer animals with ancient genes to test causes of evolution – Science Life Kristi Montooth at the University of Nebraska holds a bottle with fruit flies, the subject of a new study on the genetic basis of adaptation and evolution. (Photo: University of Nebraska) Scientists at the University of Chicago have created the first genetically modified animals containing reconstructed ancient genes, which they used to test the evolutionary effects of genetic changes that happened in the deep past on the animals’ biology and fitness. The research, published early online in Nature Ecology & Evolution on Jan. 13, is a major step forward for efforts to study the genetic basis of adaptation and evolution. “We realized we could overcome this problem by combining two recently developed methods—statistical reconstruction of ancient gene sequences and engineering of transgenic animals,” he said. Kristi Montooth, from the University of Nebraska, and Mohammad Siddiq, from UChicago (Photo: University of Nebraska) Joe Thornton, PhD Like this: Like Loading... Related In "cell biology"
Coronavirus mutations and vaccines – worse than murder hornets I am skeptical of the wild claims about getting a COVID-19 vaccine in 12-18 months, and now there is powerful research about coronavirus mutations that makes me very concerned about getting an effective vaccine. And you thought murder hornets were bad? These coronavirus mutations could mean a disaster for current vaccine research – if we’re developing vaccines for a previous strain of COVID-19, rather than more current (and apparently, more virulent) coronavirus vaccines. This makes the murder hornets look like a ladybug. A recent paper looks at a particularly dangerous strain of coronavirus mutations that should make us reassess any optimism about getting a new COVID-19 vaccine. Coronavirus mutations study Because of the urgency to get coronavirus research out for researchers, many papers are being published online as “preprints,” while they are being peer-reviewed by major journals. Dr. Dr. What this means for vaccines And remember, this is just the first mutation. Notes Citations Related
Busy language learners need clarity Bioproduction de protéines thérapeutiques - Revue et perspectives Med Sci (Paris) 2009 ; 25 : 18–26 Bioproduction de protéines thérapeutiques Revue et perspectives Bioproduction of pharmaceutical proteins: review and perspectives Joëlle Dumas* et Bénédicte Robert* Genopole Campus 1, 5, rue Henri Desbruères, 91030 Évry Cedex, France * benedicte.robert@genopole.fr* joelle.dumas@genopole.fr Résumé La montée en puissance du marché biopharma- ceutique génère des besoins énormes en production de molécules thérapeutiques. Abstract The increase in importance of the biopharmaceutical market generates enormous needs in production of therapeutic molecules. © 2009 médecine/sciences - Inserm / SRMS Le contexte biopharmaceutique mondial Avec un marché biopharmaceutique en forte croissance, les besoins de production de molécules thérapeutiques sont grandissants. « Un pays développé doit pouvoir faire bénéficier sa population de ces nouvelles voies de traitement. La production de protéines thérapeutiques Tableau I. Applications médicales des protéines thérapeutiques. Tableau II.
Translate Rýrnun jökla veldur aflögun þyngdarsviðs jarðar | Háskóli Íslands Ný rannsókn Dönsku geimferðastofnunarinnar (DTU-Space) í samvinnu við Jarðvísindastofnun Háskólans og Veðurstofu Íslands sýnir að unnt er að mæla rýrnun íslenskra jökla síðustu ár með gervihnöttum. Hefðbundnar afkomumælingar sýna að íslenskir jöklar hafa hopað og þynnst jafnt og þétt frá árinu 1995 sem nemur um 10 rúmkílómetrum af ís á ári að meðaltali. Þessi rýrnun jöklanna veldur aflögun þyngdarsviðs jarðar nærri Íslandi. Alexander Jarosch, fræðimaður í jöklafræði við Jarðvísindastofnun Háskólans, segir að niðurstaða rannsóknanna sé í samræmi við fyrirliggjandi afkomumælingar sem sýni að íslensku jöklarnir hafi samtals rýrnað um meira en 200 rúmkílómetra frá árinu 1995. Hlýnandi loftslag hefur haft mikil áhrif á stærstu jökla jarðar „Sökum þess að nýju mælingarnar sýna með beinum hætti breytingar á massa jöklanna má segja að íslensku jöklarnir hafi verið vigtaðir úr geimnum með þessum mælingum,“ segir Alexander.
The Risks - Know Them - Avoid Them It seems many people are breathing some relief, and I’m not sure why. An epidemic curve has a relatively predictable upslope and once the peak is reached, the back slope is also predictable. Assuming we have just crested in deaths at 70k, that would mean that if we stay locked down, we lose another 70,000 people over the next 6 weeks as we come off that peak. That's what's going to happen with a lockdown. As states reopen, and we give the virus more fuel, all bets are off. I understand the reasons for reopening the economy, but I've said before, if you don't solve the biology, the economy won't recover. There are very few states that have demonstrated a sustained decline in numbers of new infections. So throughout most of the country we are going to add fuel to the viral fire by reopening. Where are people getting sick? We know most people get infected in their own home. But where are people contracting the infection in the community? How much Virus is released into the environment? Dr.