( ( This ( so-called ( ` ( fasting ( secretion ' ) ) ) ) ) ( ( is ( ( the reason ) ( for ( ( the auto-digestion ) ( seen ( ( ( ( ( ( ( in ( gastric ulcers ) ) , ) or ) ( at least ) ) ( in ( ulcers ( near ( ( ( the ( pyloric sphincter ) ) , ) ( the duodenum ) ) ) ) ) ) or ) ( at ( ( the ( artificial exit ) ) ( of ( a ( resected stomach ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This) (JJ so-called) (`` `) (JJ fasting) (NN secretion) ('' ')) (VP (VBZ is) (NP (NP (DT the) (NN reason)) (PP (IN for) (NP (NP (DT the) (NN auto-digestion)) (VP (VBN seen) (PP (PP (IN in) (NP (JJ gastric) (NNS ulcers))) (, ,) (CC or) (ADVP (IN at) (JJS least)) (PP (IN in) (NP (NP (NNS ulcers)) (PP (IN near) (NP (NP (DT the) (JJ pyloric) (NN sphincter)) (, ,) (NP (DT the) (NN duodenum)))))) (CC or) (PP (IN at) (NP (NP (DT the) (JJ artificial) (NN exit)) (PP (IN of) (NP (DT a) (JJ resected) (NN stomach))))))))))) (. .)))
This so-called 'fasting secretion' is the reason for the auto-digestion seen in gastric ulcers, or at least in ulcers near the pyloric sphincter, the duodenum or at the artificial exit of a resected stomach.
(ROOT (S (NP (JJ Gastric) (NN emptying)) (VP (VBZ is) (VP (VBN regulated) (PP (IN by) (NP (NP (PDT both) (DT the) (NN stomach)) (CC and) (NP (DT the) (NN duodenum)))))) (. .)))