Hariprasad Korsapati

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BACKGROUND & AIMS Contraction of the longitudinal muscle of the esophagus may play a role in the relaxation and opening of the lower esophageal sphincter (LES). The goal of our study was to determine the pattern and precise temporal correlation between local longitudinal muscle contraction (LMC) of the esophagus during peristalsis and transient LES(More)
BACKGROUND/AIMS Transient receptor potential vanilloid-1 (TRPV1) is a candidate for mediating acid-induced symptoms in the esophagus. We conducted studies to determine if the presence of acid in the mucosa/submucosa and direct activation of TRPV1 by capsaicin elicited symptoms in normal healthy subjects. We also studied the presence of TRPV1 receptors in(More)
BACKGROUND & AIMS Patients with high-amplitude esophageal contractions (nutcracker esophagus [NCE]) show asynchrony of circular muscle (CM) and longitudinal muscle (LM) contraction during peristalsis. The goal of our study was to determine if this asynchrony is related to an increase in the cholinergic receptor activity. METHODS High-frequency(More)
In healthy subjects, a close temporal correlation exists between contractions of the circular muscle (CM) and longitudinal muscle (LM) layers of the esophagus. Patients with nutcracker esophagus show disassociation between the peak of contractions of the CM and LM layers and the peak of contraction 1-3 s apart (Jung HY, Puckett JL, Bhalla V, Rojas-Feria M,(More)
BACKGROUND Oesophageal motility, as measured by manometry, is normal in the majority of patients with eosinophilic oesophagitis (EO). However, manometry measures only the circular muscle function of the oesophagus. The goal of the present study was to assess circular and longitudinal muscle function during peristalsis in patients with EO. METHODS(More)
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