- 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.
1) The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
2) The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment. The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell.
Industry:Medical
DNA constructs that are composed of, at least, a replication origin, for successful replication, propagation to and maintenance as an extra chromosome in bacteria. In addition, they can carry large amounts (about 200 kilobases) of other sequence for a variety of bioengineering purposes.
Definition from: Unified Medical Language System (MeSH) at the National Library of Medicine A bacterial artificial chromosome (BAC) is an engineered DNA molecule used to clone DNA sequences in bacterial cells (for example, E. coli). BACs are often used in connection with DNA sequencing. Segments of an organism's DNA, ranging from 100,000 to about 300,000 base pairs, can be inserted into BACs. The BACs, with their inserted DNA, are then taken up by bacterial cells. As the bacterial cells grow and divide, they amplify the BAC DNA, which can then be isolated and used in sequencing DNA.
Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute.
Industry:Medical
1) Positively charged atoms, radicals or groups of atoms which travel to the cathode or negative pole during electrolysis.
2) The ion in an electrolyzed solution that migrates to the cathode; broadly: a positively charged ion.
Industry:Medical
1) The study of hearing and hearing impairment.
2) A branch of science dealing with hearing; specifically: therapy of individuals having impaired hearing.
Industry:Medical
1) State of general ill health characterized by malnutrition, weakness, and emaciation; occurs during the course of a chronic disease.
2) General ill health, malnutrition, and weight loss, usually associated with chronic disease.
3) General physical wasting and malnutrition usually associated with chronic disease.
4) Loss of body weight and muscle mass, and weakness that may occur in patients with cancer, AIDS, or other chronic diseases.
Industry:Medical
1) A bile pigment that is a degradation product of heme.
2) Substance formed when red blood cells are broken down. Bilirubin is part of the bile, which is made in the liver and is stored in the gallbladder. The abnormal buildup of bilirubin causes jaundice.
Industry:Medical
1) The soft tissue filling the cavities of bones. Bone marrow exists in two types, yellow and red. Yellow marrow is found in the large cavities of large bones and consists mostly of fat cells and a few primitive blood cells. Red marrow is a hematopoietic tissue and is the site of production of erythrocytes and granular leukocytes. Bone marrow is made up of a framework of connective tissue containing branching fibers with the frame being filled with marrow cells.
2) The soft, sponge-like tissue in the center of bones that produces white blood cells, red blood cells, and platelets.
Industry:Medical
1) Adherence of cells to surfaces or to other cells.
2) The close adherence (bonding) to adjoining cell surfaces.
Industry:Medical
1) Absence or closure of a natural passage of the body (atresia of the small intestine).
2) Absence or disappearance of an anatomical part (as an ovarian follicle) by degeneration.
Industry:Medical
A daughter cell of an organism that reproduces by budding; formed by pinching off part of the parent cell.
Industry:Medical
