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Ontology Browser
Term:
blood CD4 lymphocyte count to total lymphocyte count ratio (CMO:0002354)
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Parent Terms Term With Siblings Child Terms
blood CD25 cell count to CD4 cell count ratio 
blood CD25 lymphocyte count to total lymphocyte count ratio 
blood CD3 lymphocyte count to total lymphocyte count ratio 
blood CD4 cell count to CD8 cell count ratio  
blood CD4 cell to R73 cell ratio 
blood CD4 lymphocyte count to total lymphocyte count ratio +  
A calculated measurement in which the number of lymphocytes expressing the CD4 antigen on their surface in a specified sample of blood is divided by the total number of lymphocytes in the sample, and the result presented as a ratio, fraction, quotient or percentage. CD4 is a membrane glycoprotein found primarily on T lymphocytes, especially T helper (TH) cells, but also can be expressed on B cells, macrophages, and granulocytes. On T cells it is a co-receptor for the T cell receptor (TCR), interacts with MHC class II antigens, and functions to initiate or augment the early phase of T-cell activation.
blood CD45RC(high) CD4 T cell count to CD45RC(low) CD4 T cell count ratio 
blood CD4Th1 cell to CD4 Th2 cell ratio 
blood CD8 lymphocyte count to total lymphocyte count ratio 
blood RT6.1 positive cell count to total lymphocyte count ratio 

Synonyms
Exact Synonyms: blood CD4(+) lymphocyte count to total lymphocyte count ratio
Related Synonyms: blood CD4 lymphocyte count as percentage of total lymphocytes ;   blood T helper cell percentage ;   blood TH cell count to total lymphocyte count ratio
Definition Sources: Dorland:Dorlands_Illustrated_Medical_Dictionary--31st_Ed, http://en.wikipedia.org/wiki/CD4 "Wikipedia" "Wikipedia", ISBN:978-1416049982

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