Distribution and content of neuropeptide Y in the human lower esophageal sphincter.

Abstract

The occurrence and distribution of neuropeptide Y (NPY) was studied in smooth-muscle specimens from the human lower esophageal sphincter region by immunocytochemistry and immunochemistry. Normal individuals and patients suffering from achalasia or hiatus hernia with severe gastroesophageal reflux were examined. NPY fibers were found within and around smooth… (More)

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