Linked Life Data

7882592

Source:http://linkedlifedata.com/resource/pubmed/id/7882592

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-4-11
pubmed:abstractText
Non-insulin-dependent diabetes mellitus develops in obesity. The insulin resistance of this disease may be mediated by tumor necrosis factor-alpha (TNF-alpha). In particular, the TNF-alpha derived from adipose tissues might be involved in the induction of peripheral insulin resistance in rodent models of obesity. In general, monocytes/macrophages have been considered as the major source of TNF-alpha. This study was designed to examine the potential production of TNF-alpha from monocyte/macrophages in obese mice. In obese (ob/ob) and obese diabetic (db/db) mice, both of which are known to have severe insulin resistance, unstimulated serum bioactivity of TNF-alpha was significantly higher than that in lean control mice. Spontaneous TNF-alpha mRNA expression in splenic macrophages was also enhanced in obese mice, but not in monosodium-L-glutamate (MST)-induced obese mice which have no insulin resistance. In addition, both ob/ob and db/db mice produce more TNF-alpha than lean mice upon in vivo lipopolysaccharide (LPS) stimulation. The LPS-induced increase in serum TNF-alpha activity was not observed in MSG-induced obese mice. Taken together, it is postulated that TNF-alpha produced by monocytes/macrophages may also play an important role in the genesis of insulin resistance in obesity. Further study is needed to reveal the mechanism of enhanced TNF-alpha production in obese states and its possible etiologic relevance to obesity.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0090-1229
pubmed:author
pubmed:issnType
Print
pubmed:volume
75
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
51-6
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Augmented production of tumor necrosis factor-alpha in obese mice.
pubmed:affiliation
Third Department of Internal Medicine, Yokohama City University School of Medicine, Japan.
pubmed:publicationType
Journal Article