| Statin therapy depresses total body fat oxidation in the absence of genetic limitations to fat oxidation. | |
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MedLine Citation:
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PMID: 17410478 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Cholesterol lowering drugs are associated with myopathic side effects in 7% of those on therapy, which is reversible in most, but not all patients. This study tested the hypothesis that total body fat oxidation (TBFO) is reduced by statins in patients with genetic deficiencies in FO, determined by white blood cells (FOwbc) and by molecular analysis of common deficiencies, and would cause intolerance in some patients. Six patients on statin therapy without myopathic side effects (tolerant) and 7 patients who had previously developed statin-induced myopathic symptoms (intolerant) (age = 58 +/- 8.25 yrs, ht. = 169 +/- 11 cm, and wt. = 75.4 +/- 14.2 kg) were tested for TBFO (Respiratory Exchange Ratio, RER) pre- and during exercise. FOwbc was not significantly different between tolerant and intolerant (0.261 +/- 0.078 vs. 0.296 +/- 0.042 nmol/h per 10(9) wbc), or normals (0.27 +/- 0.09 nmol/h per 10(9) wbc) and no common molecular abnormalities were found. Pre-exercise RER (0.73 +/- 0.05 vs. 0.84 +/- 0.05) was significantly lower in the intolerant group and the VO2 at RER = 1.0 (1.27 +/- 0.32 vs. 1.87 +/- 0.60 L/min) greater than the tolerant. Post-exercise lactates were not different between groups. Although dietary fat intake was not different, blood lipoprotein levels, particularly triglycerides were 35% lower in tolerant than previously intolerant. TBFO and blood lipoproteins were reduced in tolerant patients in spite of the absence of genetic limitations, but not in the intolerant group as hypothesized. Although not conclusive, these data suggest the need for a prospective study of the effects of statins on fat oxidation. |
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Authors:
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N M Fisher; K Meksawan; A Limprasertkul; P J Isackson; D R Pendergast; G D Vladutiu |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-04-05 |
Journal Detail:
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Title: Journal of inherited metabolic disease Volume: 30 ISSN: 1573-2665 ISO Abbreviation: J. Inherit. Metab. Dis. Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-06-01 Completed Date: 2007-08-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7910918 Medline TA: J Inherit Metab Dis Country: Netherlands |
Other Details:
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Languages: eng Pagination: 388-99 Citation Subset: IM |
Affiliation:
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Department of Rehabilitation Science, School of Public Health and Health Professions, University at Buffalo, 515 Kimball Tower, 3435 Main Street, Buffalo, NY 14214, USA. nfisher@buffalo.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adipose Tissue
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drug effects,
metabolism* Adult Child Child, Preschool Databases, Factual Energy Intake Exercise Female Humans Hydroxymethylglutaryl-CoA Reductase Inhibitors / therapeutic use* Knee Joint Leukocytes / drug effects, metabolism Lipid Metabolism, Inborn Errors / drug therapy*, physiopathology Lipids / physiology* Male Middle Aged Muscle, Skeletal / physiopathology* Nutrition Assessment Oxidation-Reduction Oxygen Consumption |
| Chemical | |
Reg. No./Substance:
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0/Hydroxymethylglutaryl-CoA Reductase Inhibitors; 0/Lipids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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