| MCR | Medical Corps Reserve; melanocortin receptor; message competition ratio; metabolic clearance rate; m... |
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| MEA-I | multiple endocrine adenomatosis type I |
| MEN-I | multiple endocrine neoplasia, type I |
| MITT | Myers introduction to type |
| MMPI | matrix metalloproteinase specific for collagen type I; Minnesota Multiphasic Personality Inventory |
| multiple lipoprotein-type hyperlipidaemia | <biochemistry> Inherited as a defective gene, this disorder is characterised by elevations in serum cholesterol and/or triglycerides. There are often multiple types of lipoproteins (LDL) elevated in one family. This condition is associated with an increased risk of cardiovascular disease. Origin: Gr. Haima = blood (27 Sep 1997) |
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| contact-type dermatitis | Dermatitis resembling contact dermatitis or eczema, but caused by an ingested or injected allergen, usually a drug, and with a widespread or generalised distribution. (05 Mar 2000) |
| Cowdry's type A inclusion bodies | Droplet-like masses of acidophilic material surrounded by clear halos within nuclei, with margination of chromatin on the nuclear membrane. (05 Mar 2000) |
| Cowdry's type B inclusion bodies | Droplet-like masses of acidophilic material surrounded by clear halos within nuclei, without other nuclear changes during early stages of development of the inclusion. (05 Mar 2000) |
| habitat type | <ecology> A land or aquatic unit, consisting of an aggregation of habitats having equivalent structure, function, and responses to disturbance. (09 Oct 1997) |
| haemadsorption virus type 1 | parainfluenza virus type 3 |
| haemadsorption virus type 2 | parainfluenza virus type 1 |
| C type lectin | <cell biology> One of two classes of lectin produced by animal cells, the other being the S type. The C type lectins require disulphide linked cysteines and Ca ions in order to bind to a specific carbohydrate (c.f. S type lectins). The carbohydrate recognition domain of C type lectins consists of about 130 amino acids which contains 18 invariant residues in a highly conserved pattern. These invariant residues include cysteines which probably form disulphide bonds. So far, all identified C type lectins are extracellular proteins and include both Integral membrane proteins, such as the asialoglycoprotein receptor and soluble proteins. (06 Aug 1998) |
| C type virus | <molecular biology, virology> Originally C type particles identified in mouse tumour tissue and later shown to be oncogenic RNA viruses Oncovirinae) that bud from the plasma membrane of the host cell starting as a characteristic electron dense crescent. Include feline leukaemia virus, murine leukaemia and sarcoma viruses. (18 Nov 1997) |
| haemophilus influenzae type b | The majority of type b isolates are from biotype I. The organism can cause life-threatening meningitis, primarily in children 6-12 months of age. Children with underlying disease or immunodeficiency are also at high risk for infection. A vaccine is available and recommended for children under 5 years of age. (12 Dec 1998) |
| haemophilus influenzae type b immunization | See HIB immunization, (12 Dec 1998) |
| Haemophilus influenzae type B vaccine | A conjugate of oligosaccharides of the capsular antigen of H. Influenzae type B and diphtheria CRM protein. (05 Mar 2000) |
| pre-excitation, mahaim-type | A form of pre-excitation characterised by a normal pr interval and a long qrs interval with a delta wave. (12 Dec 1998) |
| Hermansky-Pudlak syndrome type VI | An autosomal recessive deficiency of pigment in skin, hair, and eyes; in the tyrosinase negative type, there is an absence of tyrosinase; in the tyrosinase positive type, there is normal tyrosinase which cannot enter pigment cells; it is transmitted by an autosomal recessive inheritance. The compound heterozygote is normal so the two forms are not allelic. There are several types: type IA is characterised by absence of tyrosinase with life-long complete absence of melanin, marked photophobia, and nystagmus. Type IB, yellow albinism with low or absent tyrosinase; improves with age. Type II, with normal tyrosinase activity is the most common; hair darkens and nevi and freckles develop. Type III is characterised by absent tyrosinase but pigmentation of the iris in the first decade. Type IV in Africans with normal tyrosinase. Type V with red hair. Type VI, Hermansky-Padlak syndrome, with haemorrhage due to platelet deficiency and low to absent tyrosinase. Synonym: Hermansky-Pudlak syndrome type VI. (05 Mar 2000) |
| herpes simplex type 1 | A virus that causes cold sores and fever blisters. (12 Dec 1998) |