Linked Life Data

1965180

Source:http://linkedlifedata.com/resource/pubmed/id/1965180

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1991-5-24
pubmed:abstractText
Previous studies have shown that the yield and viability of islets obtained from human or large mammal pancreas depends upon techniques used for islet isolation and upon factors that affect the quality of the donor pancreas. In the present studies, the efficacy of collagenase digestion by ductal perfusion or automated techniques was compared in a canine model of purified islet isolation. The ductal perfusion technique was then developed for human pancreas which was excised before (n = 8) or after (n = 8) multiple organ procurement and without in situ arterial perfusion of hypothermic preservation solution or significant cold storage. Studies with canine pancreas showed that ductal perfusion yielded 2.0 +/- 0.7 microL of islets/g of pancreas and when combined with automated digestion, yields improved to 3.6 +/- 0.8 microL/g (versus perfusion alone, not significant). The yield and viability of human islets was improved when the pancreas was excised before procurement of other donor organs. Results of islet isolation from eight consecutive human pancreases procured in this manner revealed a total yield of 355.2 +/- 44 x 10(3) islets, corresponding to 5345 +/- 600 islets/g (+/- SEM, mean islet diameter 150 microns). Six of eight Ficoll purification attempts succeeded, yielding 186.6 +/- 31 x 10(3) islets of purity ranging from 45-60%. Perifusion with glucose elicited biphasic insulin secretion with a three-fold rise. Islets from two of the isolations were utilized to initiate a clinical trial of islet transplantation in insulin-dependent diabetes mellitus.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0170-5903
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
37-44
pubmed:dateRevised
2007-7-23
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Isolation of purified large mammal and human islets of Langerhans.
pubmed:affiliation
Department of Surgery, University of Alberta, Edmonton, Canada.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't