( ( Mucosal tissue ) ( ( ( ( succumbs ( to ( excess ( acid-pepsin erosion ) ) ) ) , ) ( resulting ( from ( ( the ( decreased integrity ) ) ( of ( the ( mucosal barrier ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Mucosal) (NN tissue)) (VP (VBZ succumbs) (PP (TO to) (NP (JJ excess) (JJ acid-pepsin) (NN erosion))) (, ,) (S (VP (VBG resulting) (PP (IN from) (NP (NP (DT the) (VBN decreased) (NN integrity)) (PP (IN of) (NP (DT the) (JJ mucosal) (NN barrier)))))))) (. .)))
Mucosal tissue succumbs to excess acid-pepsin erosion, resulting from the decreased integrity of the mucosal barrier.
(ROOT (S (NP (JJ Mucosal) (NNS tissues)) (VP (VBP are) (NP (NP (JJ major) (NNS barriers)) (PP (TO to) (NP (NP (DT the) (NN entry)) (PP (IN of) (NP (NNS pathogens)))))) (PP (IN into) (NP (DT the) (NN body)))) (. .)))