A type of immune cell that has granules (small particles) with enzymes that are released during infections, allergic reactions, and asthma. Neutrophils, … [Read more...]
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polymorphism
A common change in the genetic code in DNA. Polymorphisms can have a harmful effect, a good effect, or no effect. Some polymorphisms have been shown to … [Read more...]
polymeric enteral nutrition formula
A nutritional drink that may help people who cannot get everything they need in their diet from foods and other drinks. It may be taken by mouth or given … [Read more...]
polyethylene glycosylated recombinant human megakaryocyte growth and development factor
A form of megakaryocyte growth and development factor (MGDF) that is made in the laboratory. MGDF comes from the protein thrombopoietin, which is normally made … [Read more...]
poly (ADP-ribose) polymerase inhibitor
A substance that blocks an enzyme involved in many functions of the cell, including the repair of DNA damage. DNA damage may be … [Read more...]
plexiform neurofibroma
A nerve that has become thick and misshapen due to the abnormal growth of cells and tissues that cover the nerve. … [Read more...]
pleomorphic
Occurring in various distinct forms. In terms of cells, having variation in the size and shape of cells or their nuclei. … [Read more...]
platelet-derived growth factor
A family of molecules released from platelets (tiny pieces of cells that are found in the blood and that help the blood clot). Forms of platelet-derived growth … [Read more...]
plasma cell tumor
A tumor that begins in plasma cells (white blood cells that produce antibodies). Multiple myeloma, monoclonal gammopathy of undetermined significance (MGUS), … [Read more...]
pituitary tumor
A tumor that forms in the pituitary gland. The pituitary is a pea-sized organ in the center of the brain above the back of the nose. It makes hormones that … [Read more...]