Catálogo de publicaciones - revistas

<jats:title>How cells keep going in the face of adversity</jats:title> <jats:p> When cells experience stresses that affect their ability to process newly synthesized proteins, they turn down their rates of translation to help them survive the stress. They also turn on the translation of proteins that will help them cope with the misfolded proteins generated during stress. How do they turn down translation in general, but maintain or increase translation of specific proteins? Starck <jats:italic>et al.</jats:italic> developed an approach that allowed them to look at the translation of specific messenger RNAs that were not down-regulated by stress. They identified a motif that helped keep chaperone protein synthesis going. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" related-article-type="in-this-issue" xlink:href="10.1126/science.aad3867">10.1126/science.aad3867</jats:related-article> </jats:p>

<jats:p> In rural Laos, more than 50% of newborns will be stunted by age 2 due to chronic malnourishment. Worldwide, 161 million children under the age of 5, many of them in Africa and Asia, suffered irreversible stunting as of 2013. The developed world is not immune. As recently as 2010, stunting affected 8 to 9% of babies enrolled in U.S. federal food-subsidy programs. Next week in Washington, DC, the American Association for the Advancement of Science (AAAS is the publisher of <jats:italic>Science</jats:italic> ) will convene its annual meeting (11 to 15 February), where world leaders will discuss food security and other major challenges that lie ahead in both the science and international policy arenas. </jats:p>

<jats:p>A roundup of weekly science policy and related news.</jats:p>

<jats:p>Debate grows over whether nation could eliminate a key but dirty fuel by 2040.</jats:p>

<jats:p>New lab tools bring exotic isotopic signatures into view.</jats:p>

<jats:p>Understanding how killifish survive months without oxygen could help stroke victims.</jats:p>

<jats:p>The most powerful antiretrovirals may not reach virus lurking in some tissues.</jats:p>