Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
|
pubmed:dateCreated |
1992-8-28
|
pubmed:abstractText |
The regenerative potential of the adult rat pancreas following a 50% pancreatectomy was investigated. Blood glucose values and body weight were unchanged by the procedure. The mitotic index (MI) of alpha, beta, and exocrine cells was examined in formalin-fixed sections of the pancreas stained for hormones and 5-bromo-2'-deoxyuridine (BrDU) after treating the animals with 2.5 mg/kg colchicine and/or 50 mg/kg BrDU prior to sacrifice. The MI was unchanged within the control group. For pancreatectomized versus control animals, in beta cells after 5 days the MI was 0.84% versus 0.41% (p less than 0.05), while 7 days postoperatively it was 1.04% versus 0.57% (p less than 0.01); in alpha cells, the MI was 0.32% versus 0.17% (p less than 0.05) at 5 days and 0.47% versus 0.24% (p less than 0.05) at 7 days. The MI of exocrine cells rose transiently on day 3 postoperatively to 0.74% in the pancreatectomized group but remained low at 0.15% (p less than 0.01) in the control group. The mean ratio of BrDU + ve beta cells was 1.19% in the pancreatectomy group and 0.45% in the control group on day 5 postoperatively (p = 0.01). A highly significant (r = 0.97; p less than 0.001) correlation existed between BrDU + ve and mitotic cells. There was no difference between the two groups in the area occupied by insulin-positive cells in pancreatic sections, nor in the number of beta cells per islet.(ABSTRACT TRUNCATED AT 250 WORDS)
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:issn |
0885-3177
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
7
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
453-9
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:1641389-Animals,
pubmed-meshheading:1641389-Blood Glucose,
pubmed-meshheading:1641389-Body Weight,
pubmed-meshheading:1641389-Bromodeoxyuridine,
pubmed-meshheading:1641389-Colchicine,
pubmed-meshheading:1641389-DNA,
pubmed-meshheading:1641389-Dose-Response Relationship, Drug,
pubmed-meshheading:1641389-Immunohistochemistry,
pubmed-meshheading:1641389-Islets of Langerhans,
pubmed-meshheading:1641389-Male,
pubmed-meshheading:1641389-Metaphase,
pubmed-meshheading:1641389-Mitosis,
pubmed-meshheading:1641389-Mitotic Index,
pubmed-meshheading:1641389-Pancreatectomy,
pubmed-meshheading:1641389-Rats,
pubmed-meshheading:1641389-Rats, Inbred Strains
|
pubmed:year |
1992
|
pubmed:articleTitle |
Mitotic activity and DNA synthesis of rat islet cells following partial pancreatectomy.
|
pubmed:affiliation |
Ray Williams Institute of Paediatric Endocrinology, Royal Alexandra Hospital for Children, Sydney, Australia.
|
pubmed:publicationType |
Journal Article,
Comparative Study
|