Subgroup analysis revealed that increasing dietary ALA tends to elevate CRP concentration  in healthy subjects .
However , the null effect of ALA supplementation on other inflammatory markers was not changed in various subgroups , indicating that the results are stable .
Meta-regression results revealed a negative relationship between the effect size on CRP and its baseline concentration .
No significant publication bias was observed for all inflammatory markers as suggested by funnel plot and Begg ’s test .
Conclusion Our meta- analysis did not find any beneficial effect of ALA supplementation  on reducing inflammatory markers including TNF , IL-6 , CRP , sICAM-1 , and sVCAM-1 .
However , in healthy subjects  , ALA supplementation might increase CRP concentration
Purpose The aim of the current meta- analysis was to investigate the effect of increasing dietary ALA intake on the blood concentration of inflammatory markers including tumor necrosis factor ( TNF ) , interleukin 6 ( IL-6 ) , C-reactive protein ( CRP ) , soluble intercellular adhesion molecule-1 ( sICAM-1 ) , and soluble vascular cell adhesion molecule-1 ( sVCAM-1 )  in adults .
High-oleic rapeseed (canola) and flaxseed oils modulate serum lipids and inflammatory biomarkers in hypercholesterolaemic subjects.
Recently , novel dietary oils with modified fatty acid profiles have been manufactured to improve fatty acid intakes and reduce CVD risk . Our objective was to evaluate the efficacy of novel high-oleic rapeseed ( canola ) oil ( HOCO ) , alone or blended with flaxseed oil ( FXCO ) , on circulating lipids and inflammatory biomarkers v. a typical Western diet ( WD ) . Using a r and omised , controlled , crossover trial , thirty-six hypercholesterolaemic subjects consumed three isoenergetic diets for 28 d each containing approximately 36 % energy from fat , of which 70 % was provided by HOCO , FXCO or WD . Dietary fat content of SFA , MUFA , PUFA n-6 and n-3 was 6 , 23 , 5 , 1 % energy for HOCO ; 6 , 16 , 5 , 7·5 % energy for FXCO ; 11·5 , 16 , 6 , 0·5 % energy for WD . After 28 d , compared with WD , LDL-cholesterol was reduced 15·1 % ( P < 0·001 ) with FXCO and 7·4 % ( P < 0·001 ) with  HOCO . Total cholesterol ( TC ) was reduced 11 % ( P < 0·001 ) with FXCO and 3·5 % ( P = 0·002 ) with HOCO compared with WD . Endpoint TC differed between FXCO and HOCO ( P < 0·05 ) . FXCO consumption reduced HDL-cholesterol by 8·5 % ( P < 0·001 ) and LDL : HDL ratio by 7·5 % ( P = 0·008 ) v. WD . FXCO significantly decreased E-selectin concentration compared with WD ( P = 0·02 ) . No differences were observed in inflammatory markers after the consumption of HOCO compared with WD . In conclusion , consumption of novel HOCO alone or when blended with flaxseed oil is cardioprotective through lipid-lowering effects . The incorporation of flaxseed oil may also target inflammation by reducing plasma E-selectin
Subgroup analysis revealed that increasing dietary ALA tends to elevate CRP concentration  in healthy subjects .
However , the null effect of ALA supplementation on other inflammatory markers was not changed in various subgroups , indicating that the results are stable .
Meta-regression results revealed a negative relationship between the effect size on CRP and its baseline concentration .
No significant publication bias was observed for all inflammatory markers as suggested by funnel plot and Begg ’s test .
Conclusion Our meta- analysis did not find any beneficial effect of ALA supplementation  on reducing inflammatory markers including TNF , IL-6 , CRP , sICAM-1 , and sVCAM-1 .
However , in healthy subjects  , ALA supplementation might increase CRP concentration
Purpose The aim of the current meta- analysis was to investigate the effect of increasing dietary ALA intake on the blood concentration of inflammatory markers including tumor necrosis factor ( TNF ) , interleukin 6 ( IL-6 ) , C-reactive protein ( CRP ) , soluble intercellular adhesion molecule-1 ( sICAM-1 ) , and soluble vascular cell adhesion molecule-1 ( sVCAM-1 )  in adults .