| acquired hypogammaglobulinaemia | Heterogeneous group of immunodeficiency syndromes characterised by hypogammaglobulinaemia of most isotypes, variable B-cell defects, and the presence of recurrent bacterial infections. (12 Dec 1998) |
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| primary hypogammaglobulinaemia | Hypogammaglobulinaemia due to a primary immunodeficiency of immunoglobulin-forming cells (B-lymphocytes). (05 Mar 2000) |
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| X-linked hypogammaglobulinaemia | A congenital, X-linked recessive, primary immunodeficiency characterised by decreased numbers (or absence) of circulating B-lymphocytes with corresponding decrease in immunoglobulins of the five classes; associated with marked susceptibility to infection by pyogenic bacteria (notably, pneumococci and Haemophilus influenzae) beginning after loss of maternal antibodies. X-linked hypogammaglobulinaemia with growth hormone deficiency, hypogammaglobulinaemia combined with a reduced number of B-cells; characterised by short stature, delayed puberty, and recurrent infections. (05 Mar 2000) |
| secondary hypogammaglobulinaemia | Immunodeficiency in which there is no evident defect in the lymphoid tissues, but rather hypercatabolism or loss of immunoglobulins such as occurs in familial idiopathic hypercatabolic hypoproteinaemia or in defects associated with the nephrotic syndrome. Synonym: secondary agammaglobulinaemia, secondary antibody deficiency, secondary hypogammaglobulinaemia. (05 Mar 2000) |
| hypogammaglobulinaemia | <biochemistry> Syndromes in humans and other vertebrates in which the immunoglobulin level is depressed below the normal range. Congenital, chronic and transient types are known. Origin: Gr. Haima = blood (11 Jan 1998) |
| transient hypogammaglobulinaemia of infancy | A type of primary immunodeficiency that occurs in infants of both sexes, usually before the sixth month of life, probably resulting from immaturity of lymphoid tissue. Synonym: transient agammaglobulinaemia. (05 Mar 2000) |
| acquired | In medicine, the word acquired means new or added. New in the sense that it is not genetic (inherited) and added in the sense that is was not congenital (present at birth) but came along later. For example, AIDS is an acquired, not a genetic form of immune deficiency. (12 Dec 1998) |
| acquired agammaglobulinaemia | Heterogeneous group of immunodeficiency syndromes characterised by hypogammaglobulinaemia of most isotypes, variable B-cell defects, and the presence of recurrent bacterial infections. (12 Dec 1998) |
| acquired bronchiectasis | <chest medicine> Persistent and progressive dilation of bronchi or bronchioles as a consequence of inflammatory disease (lung infections), obstruction (tumour) or congenital abnormality (for example cystic fibrosis). Symptoms include fetid breath and paroxysmal coughing, with the expectoration of mucopurulent matter. It may affect the bronchioles uniformly (cylindric bronchiectasis) or occur in irregular pockets (sacculated bronchiectasis) or the dilated bronchi may have terminal bulbous enlargements (fusiform bronchiectasis). Although rarely congenital, it is most often an acquired condition in childhood. (13 Nov 1997) |
| acquired centric relation | See: centric jaw relation. (05 Mar 2000) |
| acquired character | A character developed in a plant or animal as a result of environmental influences during the individual's life. (05 Mar 2000) |
| acquired cuticle | A thin film (about 1 um), derived mainly from salivary glycoproteins, which forms over the surface of a cleansed tooth crown when it is exposed to the saliva. Synonym: acquired cuticle, acquired enamel cuticle, brown pellicle, posteruption cuticle. (05 Mar 2000) |
| acquired drives | Those drives not directly related to biological needs; a secondary drive can be learned as an offshoot of a primary drive, in which case it is often referred to as a motive. Synonym: acquired drives. (05 Mar 2000) |
| acquired eccentric relation | An eccentric relation that is assumed by habit in order to bring the teeth into occlusion. (05 Mar 2000) |
| acquired epileptic aphasia | <syndrome> Acquired epileptic aphasia. The typical history is that of a child whose development is normal for several years and then, either suddenly or in a fluctuating manner, loses comprehension of speech and the ability to use speech to communicate. The seizures are of no specific type, and are mostly mild and infrequent partial or atypical absences. (12 Dec 1998) |
| acquired haemolytic anaemia | Nonhereditary acute or chronic anaemia associated with or caused by extracorpuscular factors, e.g., certain infectious agents, chemicals (including autoantibodies or therapeutic agents), burns, toxic materials from higher plant and animal forms (including snake venoms). (05 Mar 2000) |