| lyme arthritis | <radiology> Migratory polyarthritis, common in New England (named for Lyme, Conn.), spirochete (Borrelia) transmitted by tick (Ixodes dammini), joint effusion, especially knee (may be only finding), skin lesions: erythema chronicum migrans (12 Dec 1998) |
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| Lyme borreliosis | <infectious disease> A bacterial disease caused by the micro-organism (spirochete) Borrelia burgdorferi. This bacterium was discovered in 1982, although the clinical disease was first described in 1977. Infection occurs after the bite of an infected tick. The incubation period is approximately 14 days. Symptoms include a large circular red rash at the bite site (50-60% of cases), malaise, fever, headache, muscle aches and swollen lymph nodes. If untreated may progress to arthritis and compromise heart function. (27 Sep 1997) |
| lyme disease | <infectious disease> A bacterial disease caused by the micro-organism (spirochete) Borrelia burgdorferi. This bacterium was discovered in 1982, although the clinical disease was first described in 1977. Infection occurs after the bite of an infected tick. The incubation period is approximately 14 days. Symptoms include a large circular red rash at the bite site (50-60% of cases), malaise, fever, headache, muscle aches and swollen lymph nodes. If untreated may progress to arthritis and compromise heart function. (27 Sep 1997) |
| lyme disease antibody | A blood test which measures for the presence of Lyme disease antibodies. A nonreactive or serum titre of less than 1:256 is normal. A rising titre over time is more diagnostic. False positives due occur in those with rheumatoid arthritis and lupus. (27 Sep 1997) |
| lyme disease serology | A blood test which measures for the presence of Lyme disease antibodies. A nonreactive or serum titre of less than 1:256 is normal. A rising titre over time is more diagnostic. False positives due occur in those with rheumatoid arthritis and lupus. (27 Sep 1997) |
| lyme grass | <botany> A coarse perennial grass of several species of Elymus, especially. E. Canadensis, and the European E. Arenarius. Source: Websters Dictionary (01 Mar 1998) |
| lymecycline | <chemical> (4s-(4 alpha,4a alpha,5a alpha,6 beta,12a alpha-n(6)-((((4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenyl)carbonyl)amino)methyl)-l-lysine. A semisynthetic antibiotic related to tetracycline. It is more readily absorbed than tetracycline and can therefore be given in lower doses; it is also reported to have fewer gastrointestinal side effects. Pharmacological action: antibiotics, tetracycline. Chemical name: L-Lysine, N6-((((4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-2-naphthacenyl)carbonyl)amino)methyl)-, (4S-(4alpha,4aalpha,5aalpha,6beta,12aalpha))- (12 Dec 1998) |
| lymhound | A dog held in a leam; a bloodhound; a limehound. Source: Websters Dictionary (01 Mar 1998) |
| lymnaea | A genus of dextrally coiled freshwater snails that includes some species of importance as intermediate hosts of parasitic flukes. (12 Dec 1998) |
| lymph | <physiology> The almost colourless fluid that bathes body tissues and is found in the lymphatic vessels that drain the tissues of the fluid that filters across the blood vessel walls from blood. Lymph carries lymphocytes that have entered the lymph nodes from the blood. (12 May 1997) |
| lymph capillary | The beginning of the lymphatic system of vessels; it is lined with a highly attenuated endothelium with poorly developed basement membrane and a lumen of variable caliber. See: lacteal. (05 Mar 2000) |
| lymph cell | <haematology> White cell of the blood that are derived from stem cells of the lymphoid series. Two main classes are recognised, T and B lymphocytes, the latter responsible (when activated) for production of antibody, the former subdivided into subsets (helper, suppressor, cytotoxic T-cells) and responsible both for cell-mediated immunity and for stimulating B-cells. (18 Nov 1997) |
| lymph circulation | The slow passage of lymph through the lymphatic vessels and glands. (05 Mar 2000) |
| lymph cords | Cord's of dense lymphoid tissue between the sinuses in the medulla of a lymph node. Synonym: lymph cords. (05 Mar 2000) |
| lymph corpuscle | Lymphatic corpusclelymphoid corpuscle, a mononuclear type of leukocyte formed in lymph nodes and other lymphoid tissue, and also in the blood. (05 Mar 2000) |