Helper/suppressor ratio

Helper/suppressor ratio

The T-Lymphocyte Helper/Suppressor Profile (Helper/Suppressor ratio, T4:T8 ratio, CD4:CD8 ratio) is a basic laboratory test in which the percentage of CD3-positive lymphocytes in the blood positive for CD4 (T helper cells) and CD8 (a class of regulatory T cells) are counted and compared. Normal values (95% confidence intervals) are approximately 30-60% CD4 and 10-30% CD8 depending on age (ratio 0.9 to 3.7 in adults). [cite web|url=http://www.labcorp.com/datasets/labcorp/html/chapter/mono/ci006800.htm|title=Labcorp test description] One reason for abnormal results is the loss of CD4-positive cells to HIV infection.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • H/S — helper suppressor [ratio]; hysterosalpingography …   Medical dictionary

  • H/S — • helper suppressor [ratio]; • hysterosalpingography …   Dictionary of medical acronyms & abbreviations

  • List of AIDS-related topics — This is a list of AIDS related topics, many of which were originally taken from the public domain U.S. Department of Health Glossary of HIV/AIDS Related Terms, 4th Edition. [http://www.aidsinfo.nih.gov/ed resources/glossary/] NOTOC A AACTG… …   Wikipedia

  • Bodybuilding supplement — Bodybuilding supplements are dietary supplements commonly used by those involved in bodybuilding and athletics. Bodybuilding supplements may be used to replace meals, enhance weight gain, promote weight loss or improve athletic performance. Among …   Wikipedia

  • Cell — The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane. Each cell in the human body there are 100 trillion cells in each of us contains the entire… …   Medical dictionary

  • virus — viruslike, adj. /vuy reuhs/, n., pl. viruses. 1. an ultramicroscopic (20 to 300 nm in diameter), metabolically inert, infectious agent that replicates only within the cells of living hosts, mainly bacteria, plants, and animals: composed of an RNA …   Universalium

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • count — 1. A reckoning, enumeration, or accounting. 2. To enumerate or score. Addis c. a quantitative enumeration of the red blood c., white blood c., and casts in a 12 hr urine specimen; used to follow the progress of known renal disease …   Medical dictionary

  • Psychoneuroimmunology — (PNI) is the study of the interaction between psychological processes and the nervous and immune systems of the human body. [cite book | last = Michael Irwin| first = Kavita Vedhara | title = Human Psychoneuroimmunology| publisher = Oxford… …   Wikipedia

  • genetics, human — ▪ biology Introduction       study of the inheritance of characteristics by children from parents. Inheritance in humans does not differ in any fundamental way from that in other organisms.       The study of human heredity occupies a central… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”