Category: P
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Pharyngitis, Pharyngolaryngitis
Inflammation of the pharynx and the larynx. Inflammation or infection of the pharynx, usually producing a sore throat; it may be caused by bacterial or viral infection. Treatment depends on the cause. An inflammatory condition affecting the wall of the pharynx or the throat proper. It is most commonly due to a viral upper respiratory…
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Pharmacopoeia
Authoritative treatise containing directions for the identification of drug samples and the preparation of compound medicines, and published by the authority of a government or a medical or pharmaceutical society and in a broader sense is a general reference work for pharmaceutical drug specifications. A list of drugs and formulas. An official publication that describes…
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Pharmacognosis
The branch of pharmacology that studies the composition, use, and history of drugs.
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PGE-2
Prostaglandin E2, a hormone-like substance that is released by blood vessel walls in response to infection or inflammation that acts on the brain to induce fever.
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Peyers patches
Patches of lymphoid tissue or lymphoid nodules on the walls of the ilealsmall intestine. A special set of lymphoid organs found in the intestinal wall. They filter out antigens that enter the intestine in food or come from the bacteria growing naturally in the intestine, and “present” those intact antigens to adjacent lymphoid tissues, via…
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Pertussis
Whooping cough, sever cough. An acute, highly contagious infection of the respiratory tract, most frequently affecting young children, usually caused by Bordetella pertussis; a similar illness has been associated with infection by B. parapertussis and B. bronchiseptica. It is characterized by a catarrhal stage, beginning after an incubation period of about two weeks, with slight…
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Peroxisome proliferator-activated receptors (PPARs)
A family of nuclear receptors that are involved in lipid metabolism, differentiation, proliferation, cell death, and inflammation.
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Perniosis
An abnormal reaction to cold that occurs most frequently in women, children, and the elderly. Also called chilblains. Any condition caused by cold which affects blood vessels in the skin. Any one of a group of conditions caused by the effect of persistent cold on individuals whose skin blood vessels are especially sensitive. The small…
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Perlingual
Through or by way of the tongue. By way of the tongue; a method of administering medicines.
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Peristalsis
A series of organized, wave-like muscle contractions that occur throughout the digestive tract. Wavelike muscular contractions of the intestines. Waves of involuntary contraction in the digestive system. Rhythmic movement of the gut to push food along the intestinal tract. Involuntary wavelike contraction occurring along the walls of the hollow tubes of the body, especially the…