Pyrimidine
One of the two classes of bases in DNA and RNA. The pyrimidine bases are thymine (T) and cytosine (C) in DNA and cytosine (C) and uracil (U) in RNA.
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- Pyrophosphate arthropathy
Joint damage due to deposition of calcium pyrophosphate. Pyrophosphate arthropathy most commonly affects the knees, wrists and knuckles and tends to be symmetrical.
- Pyrosis
A technical term for what is popularly called heartburn, a burning sensation in the upper abdomen. In many languages there is a technical term such as pyrosis and a popular term for the same phenomenon. For example, pyrosis is popularly known in French as br�lure epigastrique and in Spanish as ardor de est�mago. Pyrosis is […]
- Pythagoras
(Born c. 580 B.C.E.) Greek philosopher and mathematician who promoted health through a special vegetarian diet.
- Pyuria
Pus in the urine. Pyuria is a sign of inflammation, often related to infection.
- PYY
A hormone concerned with hunger and the lack of hunger (satiety). Soon after eating, PYY is secreted into the blood by cells lining the lower small intestine (the ileum) and the colon. The release of PYY begins before nutrients arrive in the lower small intestine and the colon. The further release of PYY is stimulated […]