American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
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The low pH also activates the enzyme precursor pepsinogen into the active enzyme pepsin by self-cleavage.— Original Signal - Transmitting Digg
When HCL is at a low, something that happens to most people as they age, then the other component in digesting proteins, pepsinogen wont work properly.— Article Source
HCL stimulates pepsinogen to turn into pepsin, so it is a crucial part of the digesting proteins process.— Article Source
H. pylori (Hp), as well as the levels of pepsinogen I (PGI).— Naturejobs - All Jobs
We sought to 1) determine the incidence of pepsin / pepsinogen presence in the middle ear cleft of a large sample of pediatric patients undergoing myringotomy with tube placement for OM; 2) compare this with a control population of pediatric patients undergoing middle ear surgery (cochlear implantation) with no documented history of OM; 3) analyze potential risk factors for OM in children with EORD demonstrated by the presence of pepsin in the middle ear cleft; and 4) determine if pepsin positivity at the time of myringotomy with tube placement predisposes to posttympanostomy tube otorrhea.— CiteULike: Everyone's library

Century Dictionary (1)
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