| human ehrlichiosis | A form of ehrlichiosis that presents clinically as a undifferentiated acute febrile illness characterised by fever, chills, diarrhoea, and headache, following tick bite(s), probably by the Lone Star Tick, Amblyomma americanum. Caused by Ehrlichia chaffeensis. First described in 1987. (Thought to be predominantly a monocytic form of ehrlichiosis.) (05 Mar 2000) |
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| human embryo lung cell | <cell culture> Diploid, untransformed cells from the lungs of human embryos which are used to make vaccines against certain viruses (such as rabies). (09 Oct 1997) |
| human engineering | The science of designing, building or equipping mechanical devices or artificial environments to the anthropometric, physiological, or psychological requirements of the people who will use them. (12 Dec 1998) |
| human fibrin foam | A dry artificial sponge of human fibrin prepared by clotting with thrombin a foam of a solution of human fibrinogen; the clotted foam is dried from the frozen state and heated; used as a topical anticoagulant. (05 Mar 2000) |
| human gamma globulin | A preparation of the proteins of liquid human plasma, containing the antibodies of normal adults; it is obtained from pooled liquid human plasma from a number of donors and may be prepared by precipitation with organic solvents under controlled conditions of pH, ionic strength, and temperature. Synonym: human normal immunoglobulin. (05 Mar 2000) |
| human gene therapy | <molecular biology, technique> Insertion of normal DNA directly into cells to correct a genetic defect. (09 Oct 1997) |
| human genetics | The study of the genetic aspects of humans as a species. Compare: medical genetics. (05 Mar 2000) |
| human genome | The full collection of genes in a human being. (12 Dec 1998) |
| human genome initiative | <molecular biology> Collective name for several projects begun in 1986 by the Department of Energy to create an ordered set of DNA segments from known chromosomal locations, develop new computational methods for analysing genetic map and DNA sequence data, and develop new techniques and instruments for detecting and analysing DNA. This initiative is now known as the Human Genome Program. The national effort, led by DOE and National Institute of Health, is known as the Human Genome Project. (09 Oct 1997) |
| human genome project | <molecular biology> A worldwide project to determine the DNA sequence of all the DNA in humans, funded primarily by the U.S. Department of Energy (DOE), the U.S. National Institutes of Health (NIH), the European Commission (EC), and the pharmaceutical and biotechnology industries. The project will be completed in stages, beginning with a genetic map of man and a sequencing of all human cDNA. As part of the Human Genome Project, the genomes of several other plant and animal models are being studied. (14 Nov 1997) |
| human granulocytic ehrlichiosis | A form of ehrlichiosis in a patient with a history of tick bite. Characterised by leukopenia, thrombocytopenia, and mild liver damage. (Thought to be predominantly a granulocytic form of ehrlichiosis.) The species of Ehrlichia that is the agent of this disease is unknown at present. (05 Mar 2000) |
| human herpesvirus 1 | Herpes simplex virus, type 1. See: herpes simplex. (05 Mar 2000) |
| human herpesvirus 2 | Herpes simplex virus, type 2. See: herpes simplex. (05 Mar 2000) |
| human herpesvirus 3 | A herpesvirus, morphologically identical to herpes simplex virus, that causes varicella (chickenpox) and herpes zoster in man; varicella results from a primary infection with the virus; herpes zoster results from secondary invasion by the same virus or by reactivation of infection which in many instances has been latent for many years. Synonym: chickenpox virus, herpes zoster virus, human herpesvirus 3. (05 Mar 2000) |
| human herpesvirus 4 | <virology> Species of Herpetoviridae that is responsible for infectious mononucleosis (glandular fever). Discovered in 1964, this virus has been associated with Burkitt's lymphoma in South African children and with nasopharyngeal carcinoma in Asian populations. (27 Sep 1997) |