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PMID |
Sentence |
1 |
2703526
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These results indicate that the TNF-induced increase in circulating lipid levels can occur in the absence of a TNF-induced inhibition of adipose tissue lipoprotein lipase activity.
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2 |
1978829
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Previous studies demonstrated that administration of tumor necrosis factor (TNF) to diabetic rats rapidly increases serum triglyceride levels and stimulates hepatic lipogenesis without affecting the activity of adipose tissue lipoprotein lipase or serum insulin levels.
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3 |
1638523
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Injection of tumor necrosis factor elevated serum IL-6 levels and reduced adipose tissue LPL activity by 70%.
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4 |
1526345
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Although in vitro studies showed that TNF decreases adipose tissue lipoprotein lipase activity, recent studies with intact animals demonstrated that TNF increases serum triglyceride levels by stimulating hepatic lipid secretion, not by affecting clearance.
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5 |
7706477
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TNF alpha has been shown to reduce lipoprotein lipase (LPL) activity in adipose tissue.
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6 |
7706477
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To elucidate further the transcriptional mechanism of TNF alpha inhibition of LPL gene transcription, transfection analysis was used to locate the site(s) of the LPL promoter that imparts the TNF alpha response.
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7 |
7706477
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Electrophoretic mobility shift assays using two 32P-labeled LPL probes spanning the region between -180 and +44 bp revealed the loss of several LPL DNA-protein interactions after TNF alpha treatment, including the binding of NF-Y to the CCAAT box and a protein to the octamer consensus sequence.
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8 |
7706477
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These results indicate that TNF alpha regulates at least two DNA-binding proteins on the proximal promoter, thereby inhibiting LPL gene transcription.
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9 |
12934668
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Finally, TNF-alpha decreased adipose tissue LPL activity in both control and EFAD animals.
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10 |
12878589
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In contrast, exposing LDL(-) to the key lipolytic enzyme lipoprotein lipase (LPL) reversed these responses, inhibiting VCAM1 below levels seen with TNFalpha alone.
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11 |
17001213
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We analysed the relationship of these risk factors with the following five gene polymorphisms potentially involved in cardiovascular risk: ATP-binding cassette transporter A1-R219K, Peroxisome proliferator-activated receptor (PPAR)-alpha-L162V, Lipoprotein lipase (LPL)-HindIII, Paraoxonase (PON)1-Q192R, and Tumour necrosis factor (TNF)-alpha-G-308A.
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12 |
18972582
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Moreover, TNFalpha induced downregulation of key enzymes in lipogenesis, including LPL, FAS and GPAT, were also attenuated by AS-IV.
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