Supplementation with conjugated linoleic acid causes isomer-dependent oxidative stress and elevated C-reactive protein: a potential link to fatty acid-induced insulin resistance
Risérus U, Basu S, Jovinge S, Fredrikson GN, Arnlöv J, Vessby B
Published in Circulation, Vol. 106 (15), pp. 1925-9
Methodology
Double-blind placebo-controlled trial in 60 men with metabolic syndrome: trans-10,cis-12 CLA, a CLA mixture or placebo for 12 weeks. Insulin sensitivity by euglycaemic clamp.
Key Findings
Trans-10,cis-12 CLA raised urinary 8-iso-PGF2alpha (an oxidative-stress marker) by 578% and C-reactive protein by 110% versus placebo. The rise in oxidative stress was independently related to worsening insulin resistance.
Conclusions
The trans-10,cis-12 isomer increases oxidative stress and inflammatory markers in obese men, closely tied to induced insulin resistance.
Limitations
Men only; 12 weeks; surrogate markers rather than clinical events.
Supplements Studied
t10c12 CLA supplementation increases oxidative stress and inflammatory biomarkers in obese men
Outcomes Measured
closely related to induced insulin resistance
Related Health Concerns
Study Details
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