قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Health https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Scientists Break the Basis of Using a Gene Editing Tool

Scientists Break the Basis of Using a Gene Editing Tool




(Newser)

Scientists report the first use of the CRISPR gene editing tool to try to cure a patient's HIV infection by providing blood cells that have been altered to counteract the AIDS virus. The gene-editing tool has long been used in research laboratories, and a Chinese scientist was scorned last year when he revealed he used it on embryos that led to the birth of twin girls. Embryo editing is considered too risky, in part because changes in DNA can pass on to future generations. Wednesday's report in by the New England Journal of Medicine by various Chinese researchers, is the first published account to use CRISPR for the treatment of adult disease, where changes in DNA are limited to that person. The attempt was successful in some way but failed to cure HIV, the AP reports.

Still, gene editing is promising and looks accurate and safe in this patient, said Dr. Carl June, a genetics expert at the University of Pennsylvania who wrote a comment on the magazine. "It's really good for the field," June said. The study was conducted openly with advance notice in a scientific registry and standard informed consent procedures. Some of these steps were missing or questioned in last year's embryo work. Gene editing constantly changes DNA. CRISPR is a relatively new tool that scientists can use to cut DNA at a specific location. An encouraging result: Multiple tests have shown that editing had no undesirable effects on other genes. "They did a very innovative experiment on a patient and it was safe," says expert John Hopkins of Live Science.

(Read more CRISPR stories.)

var FBAPI = & # 39; 1

19343999649 & # 39 ;;

window.fbAsyncInit = function () { FB.init ({ application: FBAPI, status: true, cookie: true, xfbml: true, oauth: true, authResponse: true, version: & # 39; v2.5 & # 39; });

FB.Event.subscribe (& # 39; edge.create & # 39 ;, function (response) { AnalyticsCustomEvent ("Facebook", "Like", "P"); }); };

// Load the SDK asynchronously (function (d, s, id) { var js, fjs = d.getElementsByTagName (s) [0]; if (d.getElementById (id)) return; js = d.createElement (s); js.id = id; js.src = "http://connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore (js, fjs); } (document, & # 39; script & # 39 ;, & # 39; facebook-jssdk & # 39;));


Source link