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growth factor

any of various proteins that promote the growth, organization, and maintenance of cells and tissues. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for growth factor
  • It's an enzyme activator, a cell growth factor, and a component of cell membranes.
  • Animal studies have already shown that a protein called nerve growth factor is vital to keeping cholinergic cells healthy.
  • The mutation affects a growth hormone receptor on their cells, so that the cells produce low levels of a growth factor.
  • In the case of brain cancer, the primary growth factor involved is epidermal growth factor.
  • In addition to serving as a chemical messenger, serotonin acts as a growth factor during the first years of life.
  • Furthermore, the work suggests that this growth factor may help with spinal-cord injuries as well.
  • Tumor growth factors, such as epidermal growth factor, stimulate cell growth.
  • Researchers hoped the gene would start making the growth factor, which is the body's natural substance to make blood vessels grow.
British Dictionary definitions for growth factor

growth factor

any of several substances present in serum that induce growth of cells. Excessive amounts of growth factor may be associated with the production of cancer cells
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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growth factor in Medicine

growth factor n.
A substance that affects the growth of an organism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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