| HRV | heart rate variability; human reovirus; human rotavirus |
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| HSP | Health Systems Plan; heat shock protein; hemostatic screening profile; Henoch-Schonlein purpura; her... |
| HTL | hamster tumor line; hearing threshold level; high-L-leucine transport; histotechnologist; human T-ce... |
| HTLV | human T-cell leukemia/lymphoma virus; human T-lymphotropic virus |
| HTS | head traumatic syndrome; HeLa tumor suppression; human thyroid-stimulating hormone, human thyroid st... |
| human gene therapy | <molecular biology, technique> Insertion of normal DNA directly into cells to correct a genetic defect. (09 Oct 1997) |
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| 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 growth hormone | <endocrinology> A protein produced in the pituitary gland that stimulates the liver to produce somatomedins, which stimulate growth of bone and muscle. (09 Oct 1997) |
| 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) |
| human herpesvirus 5 | <virology> Probably the most widespread of the Herpetoviridae group. Infected cells enlarge and have a characteristic inclusion body (composed of virus particles) in the nucleus. Causes disease only in utero (leading to abortion or stillbirth or to various congenital defects), although can be opportunistic in the immunocompromised host. Patients who have been exposed to the virus will remain cytomegalovirus IgG positive. Acronym: CMV (30 Sep 1997) |
| human herpesvirus 6 | A recently discovered human herpesvirus that was found in certain lymphoproliferative disorders, replicates in a number of different types of leukocytes, and is associated with the childhood disease roseola (exanthema subitum). (05 Mar 2000) |
| human herpesvirus 7 | This virus has recently been discovered in association with human lymphocytes; however, a causal relationship to any known disease has not been determined. (05 Mar 2000) |
| human immunodeficiency virus | <virology> A type of retrovirus (human immunodeficiency virus) that is responsible for the fatal illness acquired immunodeficiency syndrome. Two strains have been identified. Type 1: the retrovirus recognised as the agent that induces AIDS. Type 2: a virus closely related to HIV-1 that also leads to immune suppression. HIV-2 is not as virulent as HIV-1 and is epidemic only in West Africa. Acronym: HIV (11 Nov 1997) |