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Expansion
(redirected from clonal expansion)

   Also found in: Dictionary/thesaurus, Medical, Legal, Encyclopedia, Wikipedia 0.01 sec.
Expansion
Phase of the business cycle as it climbs from a trough toward a peak.

Expansion
In a business cycle, a period of growth during which an economy moves from its trough to its peak. For example, if an economy dips to growth of -2.5% and then recovers to 3% growth, this period is called expansion. It is considered a normal and inevitable part of a business cycle following a recession or other contraction. Expansion is also called recovery.


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They review research into the clonal expansion of a single, normal or mutated stem cell in order to bring new insights into both the biology of the gastrointestinal tract and tumorigenesis in the intestine.
In terms of lung cancer susceptibility, however, our observation that stem cell activation leads to clonal expansion after injury could, in the context of additional mutations, promote the development of cancerous or precancerous lesions from activated stem cells," Giangreco added.
Clonal expansion and horizontal gene transfer may contribute to the spread of antimicrobial drug--resistance integrons in these organisms.
 
 
 
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