Harlan G Rich

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The objective of this study conducted at the sexually transmitted diseases (STD) clinic of the Pasteur Institute of Morocco (SCPIM) is to describe clinical complaints and biological findings in patients attending this facility. Two thousand two hundred sixty-four patients had visited the STD clinic from 1992 to 1996. The main reported symptom was genital(More)
In single cells, isolated by enzymatic digestion from the circular muscle layer of the lower esophageal sphincter (LES), acute experimental esophagitis (AE) alters signal transduction in response to a maximally effective dose of acetylcholine. In normal LES contraction was inhibited by M3 >> M1 or M2 antagonists. In AE inhibition by M2 antagonists increased(More)
BACKGROUND & AIMS Phospholipase A2 (PLA2) participates in acetylcholine (ACh)-induced contraction of esophageal circular smooth muscle. Because PLA2, arachidonic acid, and its metabolites are involved in inflammatory responses, their role after induction of experimental esophagitis was examined. METHODS Experiments were performed in esophageal smooth(More)
A 66-yr-old white male with a long-standing history of gastroesophageal reflux and Barrett's esophagus developed squamous cell dysplasia proximal to the site of the metaplastic epithelium. Two months later, he presented with progressive dysphagia. Upper endoscopy revealed near obliteration of the lumen from a large friable mass in the distal esophagus.(More)
Esophageal reflux is a common condition that affects children and 1 in 10 adults, and if untreated may result in chronic esophagitis, aspiration pneumonia, esophageal strictures, and Barrett's esophagus, a premalignant condition. Although esophagitis is a multifactorial disease that may depend on transient lower esophageal sphincter (LES) relaxation, speed(More)
We previously showed that lower esophageal spincter (LES) tone depends on spontaneous production of inositol 1,4,5-trisphosphate (IP3) and release of intracellular Ca2+ and that acute experimental esophagitis reduces LES tone and IP3 production, suggesting damage to mechanisms responsible for release of Ca2+ from intracellular stores. In the present(More)
BACKGROUND & AIMS Guidelines support endoscopic removal of certain gastric foreign bodies (FBs) and all FBs lodged in the esophagus. We studied the poorly understood group of patients who intentionally ingest FBs. METHODS Cases of intentional ingestion of FBs (n = 305) were identified, retrospectively, from an electronic endoscopy database and followed.(More)