5 hydroxytryptamine/diarrhea

Serotoninergic innervation may contribute to the control of colonic motility and to visceral sensation from the large bowel. Indeed, ondansetron hydrochloride, a selective 5-hydroxytryptamine type 3 receptor antagonist, has been shown to slow colonic transit in healthy volunteers. Thus, we wished to

OBJECTIVE Our aim was to measure concentrations of platelet-poor plasma 5-hydroxytryptamine and to assess any relationship with gastrointestinal symptomatology under fasting and fed conditions in alternating-type irritable bowel syndrome during both constipation and diarrhea periods separately.

Prostaglandins and cyclic adenosine monophosphate have been claimed to play a major role in the morphine withdrawal syndrome, but intestinal secretion has not been ruled out as being responsible, at least in part, for the accompanying diarrhea. Therefore, experiments were performed in which the

OBJECTIVE The purpose of the present paper was to investigate the effects of cold water intake on 5-hydroxytryptamine (5-HT) and its metabolite 5-hydroxyindole acetic acid (5-HIAA) in diarrhea-predominant irritable bowel syndrome (d-IBS) patients, and to observe the relationship between 5-HT and

OBJECTIVE Evidence suggests that postprandial platelet-depleted plasma 5-hydroxytryptamine (5-HT) concentrations may be abnormal in irritable bowel syndrome (IBS). However, interpretation of the data has been hampered by the variable methodology and rather small numbers used in previous studies.

Objective: To observe the effect of moxibustion on visceral pain, diarrhea, colonic 5-hydroxytryptamine (5-HT) content, and expression of tryptophan hydroxylase 1 (TPH1), serotonin reup take transporter (SERT) and 5-hydroxytryptamine

The objective of this study was to characterize the receptor(s) to 5-HT mediating 5-HTP-induced diarrhea in mice. The severity of diarrhea in mice was assessed using an arbitary scoring scale ranging from 0 (normal stools) to 3 (watery diarrhea). Administration of 5-HTP (1-30 mg/kg i.p.) produced a

Vitamin D deficiency, common in the population with irritable bowel syndrome (IBS), can induce the main factors that lead to IBS clinical symptoms, such as depression, anxiety, and inflammation. Serotonin (5-HT) plays an important role in the pathophysiology of IBS, and its production and secretion

BACKGROUND 5-Hydroxytryptamine (5-HT) is a potent intestinal secretagogue for chloride and a mediator of diarrhea in the carcinoid syndrome. 5-HT-induced chloride secretion is seen as a change in short circuit current (Isc) in muscle-stripped, chambered human jejunum. The aim of this study was to

Information on the 5-hydroxytryptamine type 3 receptor antagonist cilansetron is scarce and most studies have only been published in abstract form. Results from preclinical and two dose-finding studies have suggested that cilansetron could be effective in the treatment of patients with

Functional diarrhea occurs as part of the irritable bowel syndrome (IBS) and as an isolated symptom as functional (painless) diarrhea. Progress has been made in defining these disorders and in identifying new mechanisms involved in symptom production. A strong link exists between intestinal

Background: Visceral hypersensitivity and psychological performance are the main pathophysiological mechanisms of irritable bowel syndrome (IBS). Previous studies have found that cholecystokinin (CCK) can enhance colon movement and that

OBJECTIVE To study the regulatory effect of Huoxiang Zhengqi Extract (HZE) on the intestinal mobility in rat model of diarrhea-predominant irritable bowel syndrome (D-IBS). METHODS Eighty experimental rats were randomly divided into two parts, forty in each. Rats in one part were used in the carbon

One of the major manifestations of the carcinoid syndrome is secretory diarrhea thought to be due to overproduction of 5-hydroxytryptamine (5-HT). Synthetic somatostatin analogues have proved to be clinically effective in controlling this diarrhea. We have established a continuous cell line from a