Metabolism
Adenosine used as a second messenger can be the result of de novo purine biosynthesis via adenosine monophosphate (AMP), though it is possible other pathways exist.
When adenosine enters the circulation, it is broken down by adenosine deaminase, which is present in red cells and the vessel wall.
Dipyridamole, an inhibitor of adenosine deaminase, allows adenosine to accumulate in the blood stream. This causes an increase in coronary vasodilatation.
Adenosine deaminase deficiency is a known cause of immunodeficiency.
Read more about this topic: Adenosine
Famous quotes containing the word metabolism:
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—Robert Pirosh, U.S. screenwriter, George Seaton, George Oppenheimer, and Sam Wood. Dr. Hugo Z. Hackenbush (Groucho Marx)