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Reverse Transcriptase Inhibitors

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AIDS InfoNet

Nucleoside Analog Reverse Transcriptase Inhibitors in Development

These drugs have not been approved by the Food and Drug Administration (FDA) for use against HIV. Nucleoside Analog Reverse Transcriptase Inhibitors These drugs stop HIV from multiplying by blocking the reverse transcriptase enzyme. This enzyme changes HIV's genetic material (RNA) into the form of DNA. This step has to occur before HIV's genetic code gets combined with an infected cell's own genetic codes. The nucleoside analogs (often...
Ask the Experts

Reverse transcriptase inhibitors effect on telomeres

I recently started on Atripla and was trying to understand how it works and potential long term effects. So as I understand it (and I'm not a microbiologist by any stretch) the main purpose of the Sustiva in Atripla is to inhibit the reverse...
Keith Henry, M.D.

Response from Keith Henry, M.D.

University of Minnesota, School of Medicine
I am not aware of any data that has shown that nucleoside reverse transcriptase inhibitors (that are HIV DNA chain terminators not directly involving human DNA) clinically impact human chromosome or telomore length/function.... Read more »

reverse transcriptase

What is reverse transcriptase and how does it work?...
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
not copy itself. These drugs are called chain terminators. Drugs like nevirapine (Virammune) or efavirenz (sustiva) are true reverse transcriptase inhibitors in that they block the function of the enzyme, so the DNA chain also cannot be produced.MH... Read more »

Testing for Reverse Transcriptase

Dear Dr. Holodniy, I have a question regarding the enzyme reverse transcriptase. Is the enzyme present in all HIV infections, as well as other retroviruses. If so, how do you test for the enzyme in a patient?Thanks a lot....
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
THe enzyme is present in all HIV infections and other retroviral infections. We don't normally test for the RT or RT activity directly. A western blot test, will detect antibodies that have developed against the RT part of the virus. A new test... Read more »

TESTING for reverse transcriptase

Dear Dr. Conway, As this is a forum for managing side effects of HIV treatment, I was wondering if you can just very quickly answer a question. How do you test for the reverse transcriptase enzyme. Where can you go to be tested for it?Thanks a...
Brian Conway, M.D.

Response from Brian Conway, M.D.

University of British Columbia
This is an experimental test done for research purposes only, in which a DNA/RNA hetrodimer is exposed to the test sample in question (plasma or cell extract) to see if it acts to extend the DNA (a task that can only be accomplished by a reverse... Read more »
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Integrase Inhibitor

Posted by Survivor
I just wanted people realize there is hope and continued very active DRUG DISCOVERY!

Merck, Gilead Release Strong Findings From Clinical Trials of Experimental Integrase Inhibitor Antiretroviral Drugs

Whitehouse Station, N.J.-based Merck and Foster... Read more »

reversing lipodystrophy....

Posted by Anonymous, 1 Reply
Positive since 2003 full blown aids. Was on Kaletra and combivir. Reached non-detectable, and cd4 rising as expected. Into 3rd year noticing increase in truncal girth. Waist went from 27in. to 32in of hard solid protruding fat. Arms, legs, face... Read more »

Entry Inhibitors

Posted by Anonymous, 1 Reply
Does anyone know anything about the new entry inhibitors? I think Pfizer and Schering both have drugs in development. Should we be hopeful? Read more »

Fusion Inhibitor News?

Posted by Anonymous
Does anyone know if the fusion inhibitor trials (phase III) are going OK, or where to go for an update? Last I heard 700 patients in 100 countries were in the study for T-20(?)
I went to the Trimeris site and didn't see anything new.

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