Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2002-3-1
pubmed:abstractText
To clarify how Syrian hamsters of the APA strain (APA hamsters) keep a diabetic condition for a long period, the functional and histochemical changes in the pancreatic islets of diabetic APA hamsters were examined. By glucose tolerance test, no glucose-induced insulin secretion was seen in the diabetic APA hamsters. By immunohistochemistry, it was revealed that at 24 hr after SZ-injection, the number of islets had decreased and that remnant islets had become markedly smaller. The islets had hardly any insulin-immunoreactive cells and consisted of cells stained by anti-glucagon and somatostatin antibodies. One, three and six months after SZ-injection, a small number of cells with vacuolative changes, which were positive for PAS staining, were observed in most islets and the vacuolated cells were stained mainly by anti-insulin antibody. In addition, a number of PCNA-positive cells were observed, especially in the periphery of the vacuolated cells, while TUNEL-positive cells were not detected. This data suggests that beta-cells proliferating as a result of the replication of the resident beta-cells in islets had fallen into degeneration and necrosis by a stress, such as the glycogen deposition in hyperglycemia and hyperlipidemia. Consequently, secretion of insulin was maintained at low levels, which allowed the hamsters to live without insulin therapy in the diabetic condition for over 6 months.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1341-1357
pubmed:author
pubmed:issnType
Print
pubmed:volume
51
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
9-17
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:11871158-Animals, pubmed-meshheading:11871158-Blood Glucose, pubmed-meshheading:11871158-Cricetinae, pubmed-meshheading:11871158-Disease Models, Animal, pubmed-meshheading:11871158-Glucagon, pubmed-meshheading:11871158-Glucose Tolerance Test, pubmed-meshheading:11871158-Hyperglycemia, pubmed-meshheading:11871158-Hyperlipidemias, pubmed-meshheading:11871158-Immunohistochemistry, pubmed-meshheading:11871158-In Situ Nick-End Labeling, pubmed-meshheading:11871158-Insulin, pubmed-meshheading:11871158-Islets of Langerhans, pubmed-meshheading:11871158-Male, pubmed-meshheading:11871158-Mesocricetus, pubmed-meshheading:11871158-Proliferating Cell Nuclear Antigen, pubmed-meshheading:11871158-Somatostatin, pubmed-meshheading:11871158-Streptozocin, pubmed-meshheading:11871158-Vacuoles
pubmed:year
2002
pubmed:articleTitle
Functional and histochemical analysis on pancreatic islets of APA hamsters with SZ-induced hyperglycemia and hyperlipidemia.
pubmed:affiliation
Department of Biomedical Science, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
pubmed:publicationType
Journal Article