| ng | <abbreviation> Nanogram. (05 Mar 2000) |
|---|---|
| ng-nitroarginine methyl ester | <chemical> A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension. Pharmacological action: enzyme inhibitors. (12 Dec 1998) |
| ng/dl | <abbreviation> Abbreviation for nanograms per decilitre. (27 Sep 1997) |
| ng/ml | <abbreviation> The abbreviation for nanograms per millilitre. (27 Sep 1997) |
| NgCAM | <cell biology> Neural glial cell adhesion molecule. See: NCAM. (18 Nov 1997) |
| NGF | <growth factor> A peptide (13.26 kD) of 118 amino acids (usually dimeric) with both chemotropic and chemotrophic properties for sympathetic and sensory neurons. Found in a variety of peripheral tissues, nerve growth factor attracts neurites to the tissues by chemotropism, where they form synapses. The successful neurons are then protected from neuronal death by continuing supplies of nerve growth factor. It is also found at exceptionally high levels in snake venom and male mouse submaxillary salivary glands, from which it is commercially extracted. Nerve growth factor was the first of a family of nerve tropic factors to be discovered. Amino acids 1-81 show homology with proinsulin. Besides its peripheral actions, nerve growth factor selectively enhances the growth of cholinergic neurons that project to the forebrain and that degenerate in Alzheimer's disease. Acronym: NGF (18 Nov 1997) |
| NGF antiserum | An antiserum containing antibodies against nerve growth factor; when injected into newborn animals the majority of sympathetic ganglion cells are permanently destroyed, resulting in hypoinnervation of peripheral tissues. Synonym: NGF antiserum. (05 Mar 2000) |
| NgoBVII methyltransferase | <enzyme> Isolated from neisseria gonorrhoeae; recognises the sequence 5'-gcngc-3' Registry number: EC 2.1.1.- Synonym: DNA methyltransferase ngobvii, ngobvii mtase, m.ngobvii (26 Jun 1999) |