Twenty six patients with insulin dependent diabetes mellitus underwent a gastric emptying test, a gall bladder contraction test, an orocaecal transit study, and a colon transit test. Eleven patients had signs of cardiovascular autonomic neuropathy, 15 patients were without signs of cardiovascular autonomic neuropathy. Mean gastric clearance of radioopaque markers ingested with a meal averaged 2...

The nematode, Caenorhabdltls e l egans , conta ins a family of s ix genes that code for v i t e l l o g e n l n s . Here we repor t the complete nucleot lde sequence of one of these genes, v i t 5 . The gene spec i f i e s a mRNA of 4869 nuc l eo t ide s , including un t rans la ted regions of 9 bases at the 5 ' end and 51 bases at the 3 ' end. Vit-5 contains four short in t rons t o t a l l i ...

Orphanin FQ (OFQ), also known as nociceptin, is a recently isolated endogenous peptide with a structure similar to the endogenous opioid peptides. The present study examines the actions of centrally administered OFQ on in vivo murine gastrointestinal and colonic transit as well as the actions of OFQ on the isolated colon. Intracerebroventricular injections of OFQ dose dependently inhibited colo...

Functional gastrointestinal disorders result in a significant number of consultations in primary care facilities. Chronic constipation and diarrhea are regarded as two of the most common diseases affecting between 2% and 27% of the population in western countries. Defecatory disorders are most commonly due to dysfunction of the pelvic floor or the anal sphincter. Although an exact differentiati...

OBJECTIVE The aim of this study was to assess clinical features and colonic transit patterns in Brazilian children with refractory constipation. METHODS From 2010 to 2013, 79 constipated patients received follow-up care in a tertiary hospital. Of these patients, 28 (aged 8-14 years) were refractory to conventional therapy and underwent a simplified visual method of nuclear colonic transit stu...

Radioisotope determination of regional colonic transit in severe constipation EDITOR,-We were interested to see the article by van der Sijp et al (Gut 1993; 34: 402-8) on a scintigraphic method of colonic transit measurement compared with the conventional radiological method. There are, however, several points that we would like to raise. They have dismissed the method using methacrylate coated...

Measurement of colon transit time is the most basic and primary tool in evaluating disorders of colonic motility. In particular, it is helpful in pathologic diagnosis and for planning management in patients with constipation. Several techniques for measuring colon transit time currently exist. The standard measurement of colon transit time has been performed using radioopaque marker test. The r...

BACKGROUND Soluble guanylate cyclase (sGC) is the principal target of nitric oxide (NO) to control gastrointestinal motility. The consequence on nitrergic signaling and gut motility of inducing a heme-free status of sGC, as induced by oxidative stress, was investigated. METHODS sGCβ1 (H105F) knock-in (apo-sGC) mice, which express heme-free sGC that has basal activity, but cannot be stimulated...

The amylin analog pramlintide delays gastric emptying in type I diabetics. The effects of multiple doses of pramlintide and the mechanism of action in non-amylin-deficient humans are unknown. We investigated the effects of pramlintide on gastrointestinal and colonic transit and on the plasma pancreatic polypeptide response to the meal in a parallel-group dose-response study with subjects random...

The physiological mechanism of functional constipation (FC) includes defecatory disorders and delayed colon transit. About 18% to 68% constipated patients may have rectal hyposensitivity (RH). We performed this study to investigate the association between RH and functional defecatory disorder (FDD) as well as that between RH and delayed colon transit in FC patients.A total of 218 FC patients we...