Linked Life Data

8719928

Source:http://linkedlifedata.com/resource/pubmed/id/8719928

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1996-10-4
pubmed:abstractText
Guanylin is a recently discovered peptide hormone that activates intestinal guanylate cyclase (GC-C) and thereby stimulates intestinal chloride secretion. Immunohistochemistry showed its presence in enterochromaffin (EC) cells of the gut. In vitro studies suggested that guanylin plays an important role in the endogenous modulation of intestinal salt and water secretion. In the present study the concentration of circulating immunoreactive (IR)-guanylin in plasma of patients with intestinal diarrhoea due to chronic bowel inflammation and patients with carcinoid tumours were measured with a specific radioimmunoassay. In 22 patients with Crohn's disease and eight patients with ulcerative colitis, plasma concentrations of IR-guanylin were 44 +/- 3 and 42 +/- 4 fmol mL-1, respectively. Levels were not different from that in 44 healthy volunteers suggesting that the circulating hormone is not involved in diarrhoea of these patients. In 17 patients with symptomatic carcinoid tumors the median concentration of circulating IR-guanylin was significantly enhanced (94 +/- 16 fmol mL-1, range 37-312 fmol mL-1). Immunohistochemistry revealed the presence of immunoreactive guanylin in carcinoid tissues, suggesting that these tumours co-release guanylin along with their usual resident hormone, serotonin. Enhanced local secretion of guanylin may play a causal role in diarrhoea of these patients and its elevation in plasma may be of diagnostic value in this type of endocrine tumours.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-2972
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
899-905
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Circulating and tissue guanylin immunoreactivity in intestinal secretory diarrhoea.
pubmed:affiliation
Lower Saxony Institute for Peptide Research, Hannover, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't