| DTS | dense tubular system; diphtheria toxin sensitivity; donor transfusion, specific |
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| FTR | fractional tubular reabsorption |
| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
| PTF | patient treatment file; plasma thromboplastin factor; posterior talofibular [ligament]; proximal tub... |
| PTP | pancreatic thread protein; percutaneous transhepatic portography; physical treatment planning; poste... |
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| ileitis, terminal | Crohn's disease, a chronic inflammatory disease of the intestine involving only the end of the small intestine (the terminal ileum). Crohn's disease affects primarily the small and large intestines but which can occur anywhere in the digestive system between the mouth and the anus. Named after burrill crohn who described the disease in 1932. The disease often strikes persons in their teens or early twenties. It tends to be chronic, recurrent with periods of remission and exacerbation. In the early stages. It causes small scattered shallow crater-like areas (erosions) called apthous ulcers in the inner surface of the bowel. With time, deeper and larger ulcers develop, causing scarring and stiffness of the bowel and the bowel becomes increasingly narrowed, leading to obstruction. Deep ulcers can puncture holes in the bowel wall, leading to infection in the abdominal cavity (peritonitis) and in adjacent organs abdominal pain, diarrhoea, vomiting, fever, and weight loss can be symptoms. Crohn's disease can be associated with reddish tender skin nodules, and inflammation of the joints, spine, eyes, and liver. Diagnosis is by barium enema, barium X-ray of the small bowel, and colonoscopy. Treatment includes medications for inflammation, immune suppression, antibiotics, or surgery. (12 Dec 1998) |
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| telomere terminal transferase | <enzyme> From oxytricha nova; adds two to seven tandem repeats of the sequence ggggtttt to the 3' end of oligonucleotide primers ending in repeats of g4t4 and always adds the repeats in the proper phase Registry number: EC 2.7.7.- (26 Jun 1999) |
| terminal | 1. Forming or pertaining to an end, placed at the end. 2. A termination, end or extremity. Origin: L. Terminalis (18 Nov 1997) |
| terminal addition enzyme | <enzyme> A non-template-directed DNA polymerase normally found in vertebrate thymus and bone marrow. It catalyses the elongation of oligo- or polydeoxynucleotide chains and is widely used as a tool in the differential diagnosis of acute leukaemias in man. Chemical name: Nucleoside-triphosphate:DNA deoxynucleotidylexotransferase Registry number: EC 2.7.7.31 (12 Dec 1998) |
| terminal artery | <anatomy, artery> An artery with insufficient anastomoses to maintain viability of the tissue supplied if occlusion of the artery occurs. Synonym: terminal artery. (05 Mar 2000) |
| terminal bar | Obsolete name for zonula occludens (tight junction). (18 Nov 1997) |
| terminal boutons | The somewhat enlarged, often club-shaped endings by which axons make synaptic contacts with other nerve cells or with effector cells (muscle or gland cells). As isolated, by homogenizing brain or spinal cord, they contain acetylcholine and the related enzymes. Terminals contain neurotransmitters of various kinds, sometimes more than one. These can be demonstrated by chemical analysis and immunocytochemical methods. See: synapse. Synonym: axonal terminal boutons, end-feet, neuropodia, pieds terminaux, synaptic boutons, synaptic endings, synaptic terminals, terminal boutons, bouton terminaux. (05 Mar 2000) |
| terminal bronchiole | The end of the nonrespiratory conducting airway; the lining is simple columnar or cuboidal epithelium without mucous goblet cells; most of the cells are ciliated, but a few nonciliated serous secreting cells occur. Synonym: bronchiolus terminalis. (05 Mar 2000) |
| terminal care | Medical and nursing care of patients in the terminal stage of an illness. (12 Dec 1998) |
| terminal cisternae | Regions of the sarcoplasmic reticulum adjacent to T tubules and from which calcium is released when striated muscle is activated. (18 Nov 1997) |
| terminal crest | A vertical crest on the interior wall of the right atrium that lies to the right of the sinus of the vena cava and separates this from the remainder of the right atrium. Synonym: tenia terminalis, terminal crest. (05 Mar 2000) |
| terminal deletion | Deletion involving the terminal part of a chromosome and leading to a adhesive terminus. (05 Mar 2000) |
| terminal deoxynucleotidyltransferase | <enzyme> A non-template-directed DNA polymerase normally found in vertebrate thymus and bone marrow. It catalyses the elongation of oligo- or polydeoxynucleotide chains and is widely used as a tool in the differential diagnosis of acute leukaemias in man. Chemical name: Nucleoside-triphosphate:DNA deoxynucleotidylexotransferase Registry number: EC 2.7.7.31 (12 Dec 1998) |
| terminal disinfection | Application of disinfective measures after the patient has been removed, e.g., by death, or has ceased to be a source of infection. (05 Mar 2000) |
| terminal endocarditis | Verrucous endocardial lesions occurring in the terminal stages of many chronic infectious and wasting diseases. Synonym: abacterial thrombotic endocarditis, cachectic endocarditis, terminal endocarditis, thromboendocarditis. (05 Mar 2000) |