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Old 11-19-2004, 07:48 PM   #1
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bunnee HB User
Question about lymphocytes

Does anybody know the maximum lifespan of a lymphocyte? Paticularily b lymphocyte or macrophague?

Wierd question I know but if any smart person or moderator knows, that would be appreciated

 
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Old 11-20-2004, 04:58 PM   #2
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Marimac HB UserMarimac HB User
Re: Question about lymphocytes

Quote:
Originally Posted by bunnee
Does anybody know the maximum lifespan of a lymphocyte? Paticularily b lymphocyte or macrophague?

Wierd question I know but if any smart person or moderator knows, that would be appreciated
There are the many types of lymphocytes. The B-cells and T Cells as well as what is known as neutral cells. T cells have two subgroups. One of the subgroups attacks what it is programmed to believe, is an invader such as a bacteria or virus. They actually kill themselves by absorbing the bacteria and removing it from the blood stream by way of the lymphnodes that travel to the spleen etc. Their life span is based on the disease they are attacking. The memory T-Cells can have a life that is as long as the body lives and they make up the immune system that remembers that you had the measles or the mumps and protects you from getting that. There are other lymphocytes that get created by the immune system/blood stream that have a life span of about 3 days. They move into the blood stream and then reabsorb back into the tissue of the body until needed. That is why the blood counts for White blood cells in general can vary from week to week on a Blood test. An infection triggers a normal body to produce an abundance of white blood cells to fight an infection such as a cut on your hand or to help heal surgery. HIV on the other hand masquerades as healthy T-cells and then spreads the virus that way. When the absolute count is taken and you have full blown AIDS, that is when the T-Cell count has been wiped out by the virus and knocked the counts down below 200 cells.

 
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