Journal
JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
Volume 95, Issue 6, Pages 2727-2735Publisher
ENDOCRINE SOC
DOI: 10.1210/jc.2009-2622
Keywords
-
Categories
Funding
- National Institutes of Health [DK 37948, DK 56341, RR024992, RR-00954]
Ask authors/readers for more resources
Context: Nonalcoholic fatty liver disease is associated with risk factors for cardiovascular disease, particularly increased plasma triglyceride (TG) concentrations and insulin resistance. Fenofibrate and extended release nicotinic acid (Niaspan) are used to treat hypertriglyceridemia and can affect fatty acid oxidation and plasma free fatty acid concentrations, which influence intrahepatic triglyceride (IHTG) content and metabolic function. Objective: The objective of the study was to determine the effects of fenofibrate and nicotinic acid therapy on IHTG content and cardiovascular risk factors. Experimental Design and Main Outcome Measures: We conducted a randomized, controlled trial to determine the effects of fenofibrate (8 wk, 200 mg/d), Niaspan (16 wk, 2000 mg/d), or placebo (8 wk) on IHTG content, very low-density lipoprotein (VLDL) kinetics, and insulin sensitivity. Setting and Participants: Twenty-seven obese subjects with nonalcoholic fatty liver disease (body mass index 36 +/- 1 kg/m(2), IHTG 23 +/- 2%) were studied at Washington University. Results: Neither fenofibrate nor Niaspan affected IHTG content, but both decreased plasma TG, VLDL-TG, and VLDL-apolipoprotein B concentrations (P < 0.05). Fenofibrate increased VLDL-TG clearance from plasma (33 to 54 ml/min; P < 0.05) but not VLDL-TG secretion. Niaspan decreased VLDL-TG secretion (27 to 15 mu mol/min; P < 0.05) without affecting clearance. Both fenofibrate and Niaspan decreased VLDL-apolipoprotein B secretion (1.6 to 1.2 and 1.3 to 0.9 nmol/min, respectively; P < 0.05). Niaspan reduced hepatic, adipose tissue, and muscle insulin sensitivity (P < 0.05), whereas fenofibrate had no effect on insulin action. Conclusions: Fenofibrate and Niaspan decrease plasma VLDL-TG concentration without altering IHTG content. However, the mechanism responsible for the change in VLDL-TG concentration is different for each drug; fenofibrate increases plasma VLDL-TG clearance, whereas nicotinic acid decreases VLDL-TG secretion. (J Clin Endocrinol Metab 95: 2727-2735, 2010)
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available