Medical Conditions Terminology in Category P

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Parasympathetic-Blocking Agents

Agents that inhibit the actions of the parasympathetic nervous system. The major group of drugs used therapeutically for this purpose is the MUSCARINIC ANTAGONISTS.

Pacific Island American

Persons living in the United States having origins in any of the original peoples of the Far East, Southeast Asia, the Pacific Islands, or the Indian subcontinent.

Pacific Islander American

Persons living in the United States having origins in any of the original peoples of the Far East, Southeast Asia, the Pacific Islands, or the Indian subcontinent.

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Palmitic Acid

A common saturated fatty acid found in fats and waxes including olive oil, palm oil, and body lipids.

Palmitylcarnitine Acyltransferase

An enzyme that catalyzes reversibly the conversion of palmitoyl-CoA to palmitoylcarnitine in the inner mitochondrial membrane. EC 2.3.1.21.

p-Aminohippuric Acid

The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.

p-Aminophenylarsonic Acid

An arsenical which has been used as a feed additive for enteric conditions in pigs and poultry. It causes blindness and is ototoxic and nephrotoxic in animals.

Pancreatic alpha Cell

Irregular microscopic structures, varying from a few to hundreds of cells, scattered throughout the pancreas and comprising its endocrine portion. There are three cell types: alpha, secreting glucagon; beta, secreting insulin; and delta (D CELLS), secreting somatostatin.

Papillary Adenocarcinoma

An adenocarcinoma containing finger-like processes of vascular connective tissue covered by neoplastic epithelium, projecting into cysts or the cavity of glands or follicles. It occurs most frequently in the ovary and thyroid gland. (Stedman, 25th ed)

Papillary Adenoma

A benign epithelial tumor with a glandular organization.