NDLI: Glucose-stimulated insulin secretion suppresses hepatic triglyceride-rich lipoprotein and apoB production.

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Glucose-stimulated insulin secretion suppresses hepatic triglyceride-rich lipoprotein and apoB production.

Content Provider	Semantic Scholar
Author	Chirieac, Doru V. Chirieac, Lucian R. Corsetti, James P. Cianci, Joanne E. Sparks, Charles E. Sparks, Janet D.
Copyright Year	2000
Abstract	The current study assessed in vivo the effect of insulin on triglyceride-rich lipoprotein (TRL) production by rat liver. Hepatic triglyceride and apolipoprotein B (apoB) production were measured in anesthetized, fasted rats injected intravenously with Triton WR-1339 (400 mg/kg). After intravascular catabolism was blocked by detergent treatment, glucose (500 mg/kg) was injected to elicit insulin secretion, and serum triglyceride and apoB accumulation were monitored over the next 3 h. In glucose-injected rats, triglyceride secretion averaged 22.5 +/- 2.1 microg.ml(-1).min(-1), which was significantly less by 30% than that observed in saline-injected rats, which averaged 32.1 +/- 1.4 microg.ml(-1).min(-1). ApoB secretion was also significantly reduced by 66% in glucose-injected rats. ApoB immunoblotting indicated that both B100 and B48 production were significantly reduced after glucose injection. Results support the conclusion that insulin acts in vivo to suppress hepatic very low density lipoprotein (VLDL) triglyceride and apoB secretion and strengthen the concept of a regulatory role for insulin in VLDL metabolism postprandially.
File Format	PDF HTM / HTML
DOI	10.1152/ajpendo.2000.279.5.E1003
PubMed reference number	11052954
Journal	Medline
Volume Number	279
Issue Number	5
Alternate Webpage(s)	http://ajpendo.physiology.org/content/ajpendo/279/5/e1003.full.pdf
Journal	American journal of physiology. Endocrinology and metabolism
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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