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What Is The Role Of A Cd4 Receptor

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The Well Project

Understanding CD4 Cells and CD4 Cell Tests

The Basics CD4 Count and HIV CD4 Count and HIV Treatment CD4 Cell Test The Bottom Line The Basics Your immune system protects your body by fighting germs and infections.White blood cells are an important part of your immune system. HIV infects and destroys a type of white blood cell called aCD4 cell (sometimes called a T-cell). As the immune system loses CD4 cells, it becomes weaker and is less able tofight off germs. When it...
Ask the Experts

Cd4 and CD4/CD8 ratio

Dear Keith, I have been recently diagnosed HIV+ (June 02) and have some questions regarding both the CD4/CD8 ratio and CD4 which do not seem to be spoken about as much as the CD4 absolute.My first question is what exactly are CD8 cells? What happens...
Keith Henry, M.D.

Response from Keith Henry, M.D.

University of Minnesota, School of Medicine
The rate of fall in CD4 count is quite variable. The normal situation is that there are more helper cells than suppressor cells so the helper/suppressor ration (CD4/CD8) is greater than 1.0. With HIV infection there is a fall in the helper cell... Read more »

Difference between CD4 and Percentage (CD4 count versus CD4%, 2011) (LACK OF CD4 RESPONSE DESPITE TREATMENT, 2011)

Could someone explain what exactly is the correlation between CD4 cells and percentage. I know what CD4 are but what does percentage mean. Also, I have been undetectable for 1 year now, my percentage has gone from 3 to 8 but cd4 rose to 320 from 130...
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hi.This gets a bit confusing, but let me try to sort this out for you. A CD4 count is not a direct cell count of CD4 cells in your blood. Rather, it's a calculation based on the total white blood cell count and the proportion of those white... Read more »

CD4 counts vs CD4 percentage (ABSOLUTE CD4 COUNT VERSUS CD4%, 2008)

Dr. Frascino, I am a little new to dealing with HIV. I was diagnosed about 9 months ago. I was wondering what the CD4 percentage was. Because my CD4 count had changed from 510 to 409 in a three month period but the CD4 percentage had risen by 1%....
Robert J. Frascino, M.D.

Response from Robert J. Frascino, M.D.

The Robert James Frascino AIDS Foundation
Hey College Guy,I'll reprint below some information about absolute CD4 cell counts and CD4%. The CD4% is the more accurate test, as it is less susceptible to variations related to concurrent phenomena (diurnal variation, other infections, etc.)... Read more »

CD4 receptors

Dr., is it true that the CD4 receptors of all HIV infected people are abnormal? If so, in which way are they abnormal and how do these abnormalities affect us on a daily basis?Many thanks....
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
Haven't heard that.... Read more »
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IL-2 Induces Sustained CD4 Cell Increases

Posted by Anonymous, 1 Reply
IL-2 Induces Sustained CD4 Cell Increases in HIV-Infected Patients


By Deborah Mitchell

TORONTO, Sep 20 (Reuters Health) - The addition of recombinant interleukin-2 (IL-2) to an HIV antiretroviral therapy produces an increase in CD4+ T-cell counts,... Read more »

cd4 or viral load

Posted by Lilly, 2 Replies
When starting to think about treatment, does either counts (cd4s or viral load) play a bigger role? My viral load has recently dropped, but so has my cd4's. My counts are all still at a comfortable level for me with no meds, but at the clinic... Read more »

% Cd4

Posted by Anonymous, 1 Reply
Cual es el % de CD4 de una persoan infectada en su primer ao de exposicion? gracias!! Read more »

CD4 @ 8 ?

Posted by Sunshine87, 2 Replies
hello everyone just stoping by with a question ? my brother CD4 is @ 8 he is not on any meds/// can or is it possible to get that up once he start the meds ? Read more »