RT Journal Article SR Electronic T1 Trophic action of epidermal growth factor on human duodenal mucosa cultured in vitro. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 991 OP 993 DO 10.1136/gut.32.9.991 VO 32 IS 9 A1 Challacombe, D N A1 Wheeler, E E YR 1991 UL http://gut.bmj.com/content/32/9/991.abstract AB The action of epidermal growth factor on the human duodenal mucosa has been studied by estimating the crypt cell production rate in cultured explants, using a stathmokinetic technique with crypt microdissection. The addition of epidermal growth factor (400 ng/ml) to paired explants from five patients caused an almost fivefold increase in the crypt cell production rate, showing that epidermal growth factor has a trophic action on the human duodenal mucosa in vitro.