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> <channel><title>AIDSroko - Prevention of AIDS &#38; HIV &#187; AIDS &amp; HIV Facts</title> <atom:link href="http://www.aidsroko.com/category/aids-hiv-facts/feed/" rel="self" type="application/rss+xml" /><link>http://www.aidsroko.com</link> <description>HIV symptoms, AIDS symptoms, HIV - AIDS, HIV treatment, AIDS facts, HIV test</description> <lastBuildDate>Mon, 17 Oct 2011 18:06:42 +0000</lastBuildDate> <language>en</language> <sy:updatePeriod>hourly</sy:updatePeriod> <sy:updateFrequency>1</sy:updateFrequency> <generator>http://wordpress.org/?v=3.2.1</generator> <item><title>Why some people with HIV develop AIDS</title><link>http://www.aidsroko.com/why-some-people-with-hiv-develop-aids/</link> <comments>http://www.aidsroko.com/why-some-people-with-hiv-develop-aids/#comments</comments> <pubDate>Mon, 17 May 2010 16:57:04 +0000</pubDate> <dc:creator>aidsroko</dc:creator> <category><![CDATA[AIDS & HIV Facts]]></category> <category><![CDATA[AIDS Articles]]></category> <category><![CDATA[AIDS]]></category> <category><![CDATA[Facts]]></category> <category><![CDATA[HIV]]></category> <category><![CDATA[india]]></category> <category><![CDATA[Sex]]></category> <category><![CDATA[UNAIDS]]></category> <guid
isPermaLink="false">http://www.aidsroko.com/?p=88</guid> <description><![CDATA[Scientists are a step closer to understanding why some people with HIV develop full-blown AIDS, and others don&#8217;t. Researchers in Massachusetts and California say that the answer lies in how the immune cells that recognize invaders are educated &#8211; a finding that may pave the way for new strategies for designing an HIV vaccine. The human immune system detects foreign cells with the help of cell-surface proteins called human leukocyte antigens (HLAs). Each person&#8217;s cells carry a particular set of HLA molecules &#8211; the person&#8217;s HLA type &#8211; which bind fragments of virus or bacterial protein and &#8221;present&#8221; them to T cells, the immune cells that recognize and attack infected cells. But before T cells are ready to perform their killer function, they are in effect trained on fragments of the body&#8217;s own proteins &#8211; self-peptides &#8211; in an organ called the thymus. To &#8221;graduate&#8221; from the thymus, a T cell must be able to recognize at least one combination of HLA molecule and self-peptide, which provides the template for its subsequent immune response against a foreign peptide bound to that HLA molecule. T cells that bind to self-peptides very strongly, however, are rejected, as they would attack the body&#8217;s [...]]]></description> <wfw:commentRss>http://www.aidsroko.com/why-some-people-with-hiv-develop-aids/feed/</wfw:commentRss> <slash:comments>0</slash:comments> </item> </channel> </rss>
