- 行业: Library & information science
- Number of terms: 152252
- Number of blossaries: 0
- Company Profile:
The National Library of Medicine (NLM), on the campus of the National Institutes of Health in Bethesda, Maryland, is the world's largest medical library. The Library collects materials and provides information and research services in all areas of biomedicine and health care.
Nonrandom mating between unrelated individuals with similar characteristics. Used for human or animal populations.
Industry:Medical
1) A network of blood vessels with closely spaced cells that makes it difficult for potentially toxic substances (such as anticancer drugs) to penetrate the blood vessel walls and enter the brain.
2) A naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of tight cell-to-cell contacts) that prevents many substances from leaving the blood and crossing the capillary walls into the brain tissues -- abbreviation BBB.
Industry:Medical
1) A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. It is a histological type of neoplasm but is often wrongly used as a synonym for "cancer. "
2) Cancer that begins in the skin or in tissues that line or cover internal organs.
Industry:Medical
The proportion of individuals in a population who have inherited a single copy of a specific recessive gene mutation.
Industry:Medical
An individual or strain whose chromosome complement consists of more than two complete copies of the genome of a single ancestral species.
Industry:Medical
A tumor that begins in the brain or spinal cord in small, star-shaped cells called astrocytes.
Industry:Medical
1) A major affective disorder marked by severe mood swings (manic or major depressive episodes) and a tendency to remission and recurrence.
2) Any of several mood disorders characterized usually by alternating episodes of depression and mania or by episodes of depression alternating with mild nonpsychotic excitement -- called also bipolar affective disorder, bipolar illness, manic depression, manic-depressive psychosis.
Industry:Medical
1) Testing used to identify usually asymptomatic individuals who have a gene mutation for an autosomal recessive or X-linked recessive disorder.
2) Carrier screening is a type of genetic testing performed on people who display no symptoms for a genetic disorder but may be at risk for passing it on to their children. A carrier for a genetic disorder has inherited one normal and one abnormal allele for a gene associated with the disorder. A child must inherit two abnormal alleles in order for symptoms to appear. Prospective parents with a family history of a genetic disorders are candidates for carrier screening.
Industry:Medical
A slow-growing type of tumor usually found in the gastrointestinal system (most often in the appendix), and sometimes in the lungs or other sites. Carcinoid tumors may spread to the liver or other sites in the body, and they may secrete substances such as serotonin or prostaglandins, causing carcinoid syndrome.
Industry:Medical
Dense covering of microvilli on the apical surface of epithelial cells in the intestine and kidney; the microvilli aid absorption by increasing the surface area of the cell.
Industry:Medical
