European Journal of Nutrition

, 48:447

The effect of fatty or lean fish intake on inflammatory gene expression in peripheral blood mononuclear cells of patients with coronary heart disease

  • Vanessa D. F. de Mello
  • Arja T. Erkkilä
  • Ursula S. Schwab
  • Leena Pulkkinen
  • Marjukka Kolehmainen
  • Mustafa Atalay
  • Hanna Mussalo
  • Maria Lankinen
  • Matej Orešič
  • Seppo Lehto
  • Matti Uusitupa
Original Contribution
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Abstract

Background

Little is known about the effect of fish consumption on gene expression of inflammation-related genes in immune cells in coronary heart disease (CHD).

Aim of the study

We sought to evaluate the effect of a fatty fish (FF) or a lean fish (LF) diet on the modulation of inflammatory and endothelial function-related genes in peripheral blood mononuclear cells (PBMCs) of subjects with CHD, and its association with serum fatty acid (FA) profile and lipid metabolic compounds.

Methods

Data from 27 patients randomized into an 8-week FF (n = 10; mean ± SD: 4.3 ± 0.4 portions of fish per week), LF (n = 11; 4.7 ± 1.1 portions of fish per week), or control diet (n = 6; 0.6 ± 0.4 portions of fish per week) were analyzed. The mRNA expression was measured using real-time PCR.

Results

The effect of the intervention on the mRNA expression of the genes studied did not differ among groups. In the FF group, however, the decrease in arachidonic acid to eicosapentaenoic acid (AA:EPA) ratio in cholesterol ester and phospholipid fractions strongly correlated with the change in IL1B mRNA levels (rs = 0.60, P = 0.06 and rs = 0.86, P = 0.002, respectively). In the LF group, the decrease in palmitic acid and total saturated FAs in cholesterol esters correlated with the change in intercellular cell adhesion molecule-1 (ICAM1) expression (rs = 0.64, P = 0.04 for both). Circulating levels of soluble ICAM-1 decreased only in the LF group (P < 0.05).

Conclusions

The intake of FF or LF diet did not alter the expression of inflammatory and endothelial function-related genes in PBMCs of patients with CHD. However, the decrease in AA:EPA ratio in serum lipids in the FF group may induce an anti-inflammatory response at mRNA levels in PBMCs. A LF diet might benefit endothelial function, possibly mediated by the changes in serum FA composition.

Keywords

Fish Fatty acids Gene expression Inflammation Endothelial function ICAM IL-1β 

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Vanessa D. F. de Mello
    • 1
  • Arja T. Erkkilä
    • 2
  • Ursula S. Schwab
    • 1
    • 3
  • Leena Pulkkinen
    • 1
  • Marjukka Kolehmainen
    • 1
  • Mustafa Atalay
    • 4
  • Hanna Mussalo
    • 5
  • Maria Lankinen
    • 1
    • 6
  • Matej Orešič
    • 6
  • Seppo Lehto
    • 3
  • Matti Uusitupa
    • 1
  1. 1.Department of Clinical Nutrition/Food and Health Research Centre, School of Public Health and Clinical NutritionUniversity of KuopioKuopioFinland
  2. 2.Department of Public Health, School of Public Health and Clinical NutritionUniversity of KuopioKuopioFinland
  3. 3.Department of Internal MedicineKuopio University HospitalKuopioFinland
  4. 4.Department of Physiology, Institute of BiomedicineUniversity of KuopioKuopioFinland
  5. 5.Department of Clinical Physiology and Nuclear MedicineKuopio University HospitalKuopioFinland
  6. 6.VTT Technical Research Centre of FinlandEspooFinland

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