Nerve growth factor (NGF) is a small secreted protein that is important for the growth, maintenance, and survival of certain target neurons (nerve cells). It also functions as a signaling molecule. It is perhaps the prototypical growth factor, in that it is one of the first to be described. While `nerve growth factor` refers to a single factor, .....
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http://en.wikipedia.org/wiki/Nerve_growth_factor
A substance whose role is to guide neuronal growth during embryonic development, especially in the peripheral nervous system.
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http://www.bbc.co.uk/radio4/reith2003/glossary.shtml
A substance whose role is to guide neuronal growth during embryonic development, especially in the peripheral nervous system. Nerve growth factor also probably helps sustain neurons in the adult.
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http://www.brainfacts.org/glossary
(from the article `growth`) ...that can limit growth of the organ. Thus, one theoretical view is that an organ may produce substances that serve to limit its own growth, thereby ... ...to their appropriate targets and eliminate those that try to synapse with inappropriate targets. Once a synaptic connection has been established, ... ...
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http://www.britannica.com/eb/a-z/n/26
A protein made by the body that causes certain nerve cells to grow and helps keep them alive.
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http://www.cancer.gov/dictionary?expand=N
<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...
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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, NGF attracts neurites to the tissues by chemotropism, where they form synapses. The successful neurons are then 'protected' from neuronal death by continuing supplies of NGF. It is also found at exceptionally high levels in snake venom and male mouse submaxillary salivary glands, from which it is commercially extracted. NGF 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, NGF selectively enhances the growth of cholinergic neurons that project to the forebrain and that degenerate in Alzheimer's disease.
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(NGF) Type: Term Definitions: 1. a protein (MW about 27,000) that controls the development of sympathetic postganglionic neurons and possibly also sensory (dorsal root) ganglion cells in mammals; similar factors have been isolated from the venom of several species of snakes; it has been isolated from the submaxillary glands of ma...
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http://www.medilexicon.com/medicaldictionary.php?t=31744
Nerve growth factor: Abbreviated NGF. A naturally occurring molecule in the body which stimulates the growth and differentiation of the sympathetic and certain sensory nerves. NGF is a protein that consists of 3 types of polypeptide chains -- alpha, beta and gamma -- that interact to form the protein. The NGF beta chain (NGFB) is solely responsible...
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http://www.medterms.com/script/main/art.asp?articlekey=4540
[
n] - a protein that is involved in the growth of peripheral nerve cells
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http://www.webdictionary.co.uk/definition.php?query=nerve%20growth%20factor
NGF noun a protein that is involved in the growth of peripheral nerve cells
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(NGF) A protein that promotes nerve cell growth and may protect some types of nerve cells from damage.
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https://www.encyclo.co.uk/local/23246
a protein that promotes the growth, organization, and maintenance of sympathetic and some sensory nerve cells. Abbr.: NGF
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https://www.infoplease.com/dictionary/nerve-growth-factor
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