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Capsaicin-sensitive extrinsic afferent nerves have been demonstrated to release biologically active substances in the gastrointestinal (GI) tract. This fact may be useful for identifying sensory transmitter substances in isolated organ experiments. In the GI tract of animals neuropeptides like tachykinins and calcitonin gene-related peptide (CGRP) mediate(More)
Two achalasia patients with former complaints of heartburn were examined. Antisecretory drugs were used by the patients when dysphagia occurred. Barium X-ray and esophageal manometry were performed and achalasia was diagnosed in both patients. Twenty-four-hour pH-metry showed significant and long-lasting acid reflux during supine position. Prolonged reflux(More)
Neurotransmitters released by myenteric neurons regulate movements of intestinal smooth muscles. There has been little pharmacological evidence for a role of purinergic mechanisms in the non-adrenergic, non-cholinergic (NANC) relaxation of the human large intestine. We used P(2) purinoceptor antagonists to assess whether such receptors are involved in the(More)
The in vitro pharmacology of inosine (Ino), a putative anti-inflammatory compound, has been investigated in smooth muscle preparations, with emphasis on its possible interaction with known inflammatory mediators, as well as capsaicin, an inducer of "neurogenic inflammation". The highest concentration of Ino routinely studied was 1 mM, since 10 mM(More)
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