- Industry: 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) A diverse family of low molecular weight compounds such as cyclic AMP and calcium ions, which transmit the biological signals initiated by receptor-ligand binding at the cell surface to intracellular targets such as gene expression.
2) Systems in which an intracellular signal is generated in response to an intercellular primary messenger such as a hormone or neurotransmitter. They are intermediate signals in cellular processes such as metabolism, secretion, contraction, phototransduction, and cell growth. Examples of second messenger systems are the adenyl cyclase-cyclic AMP system, the phosphatidylinositol diphosphate-inositol triphosphate system, and the cyclic GMP system.
3) A cellular substance (as cyclic AMP) that mediates cell activity by relaying a signal from an extracellular molecule (as of a hormone or neurotransmitter) bound to the cell's surface
Industry:Health care
1) A diverse family of low molecular weight compounds such as cyclic AMP and calcium ions, which transmit the biological signals initiated by receptor-ligand binding at the cell surface to intracellular targets such as gene expression.
2) Systems in which an intracellular signal is generated in response to an intercellular primary messenger such as a hormone or neurotransmitter. They are intermediate signals in cellular processes such as metabolism, secretion, contraction, phototransduction, and cell growth. Examples of second messenger systems are the adenyl cyclase-cyclic AMP system, the phosphatidylinositol diphosphate-inositol triphosphate system, and the cyclic GMP system.
3) A cellular substance (as cyclic AMP) that mediates cell activity by relaying a signal from an extracellular molecule (as of a hormone or neurotransmitter) bound to the cell's surface
Industry:Health care
1) A diverse group of organic nutrient substances required in trace amounts for normal metabolic function; many are enzyme cofactors or cofactor precursors.
2) A general term for a number of unrelated organic substances that occur in many foods in small amounts and that are necessary in trace amounts for the normal metabolic functioning of the body. They may be water-soluble or fat-soluble. (Dorland, 28th ed)
3) A key nutrient that the body needs in small amounts to grow and stay strong. Examples are vitamins A, C, and E.
Industry:Health care
1) A DNA that is complementary to a given RNA which serves as a template for synthesis of the DNA in the presence of reverse transcriptase.
2) Complementary DNA produced from a RNA template by the action of RNA-dependent DNA polymerase.
Industry:Health care
1) A DNA that is complementary to a given RNA which serves as a template for synthesis of the DNA in the presence of reverse transcriptase.
2) Complementary DNA produced from a RNA template by the action of RNA-dependent DNA polymerase.
Industry:Health care
1) A doctor who specializes in treating cancer. Some oncologists specialize in a particular type of cancer treatment. For example, a radiation oncologist specializes in treating cancer with radiation.
2) A specialist in oncology.
Industry:Health care
1) A double membrane enclosing a cell nucleus and having its outer part continuous with the endoplasmic reticulum -- called also karyotheca.
2) A nuclear membrane is a double membrane that encloses the cell nucleus. It serves to separate the chromosomes from the rest of the cell. The nuclear membrane includes an array of small holes or pores that permit the passage of certain materials, such as nucleic acids and proteins, between the nucleus and cytoplasm.
Industry:Health care
1) A duct by which bile passes from the liver or gallbladder to the duodenum.
2) A tube through which bile passes in and out of the liver.
Industry:Health care
1) A family of 6-membered heterocyclic compounds occurring in nature in a wide variety of forms. They include several nucleic acid constituents (cytosine, thymine, and uracil) and form the basic structure of the barbiturates.
2) A nitrogen-containing, single-ring, basic compound that occurs in nucleic acids. The pyrimidines in DNA are cytosine and thymine; in RNA, cytosine and uracil.
Industry:Health care
1) A fatty, axon-enwrapping sheath that serves to speed up neural conduction, formed by concentric layers of Schwann's cell (peripheral) or oligodendrocyte (CNS) membranes; loss or damage leads to severe loss of neural function, as in multiple sclerosis.
2) The lipid-rich sheath surrounding axons in both the central and peripheral nervous systems. The myelin sheath is an electrical insulator and allows faster and more energetically efficient conduction of impulses. The sheath is formed by the cell membranes of glial cells (Schwann cells in the peripheral and oligodendroglia in the central nervous system). Deterioration of the sheath in demyelinating diseases is a serious clinical problem.
3) The fatty substance that covers and protects nerves.
Industry:Health care
