Effect of medium/ω‐6 long chain triglyceride‐based emulsion on leucocyte death and inflammatory gene expression | Zendy

CuryBoaventura M. F. | Zendy; Gorjão R. | Zendy; Martins de Lima T. | Zendy; Fiamoncini J. | Zendy; Godoy A. B. P. | Zendy; Deschamphs F. C. | Zendy; Soriano F. G. | Zendy; Curi R. | Zendy

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Effect of medium/ω‐6 long chain triglyceride‐based emulsion on leucocyte death and inflammatory gene expression

Author(s) -

CuryBoaventura M. F.,

Gorjão R.,

Martins de Lima T.,

Fiamoncini J.,

Godoy A. B. P.,

Deschamphs F. C.,

Soriano F. G.,

Curi R.

Publication year - 2011

Publication title -

clinical & experimental immunology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.329

H-Index - 135

eISSN - 1365-2249

pISSN - 0009-9104

DOI - 10.1111/j.1365-2249.2011.04432.x

Subject(s) - immunology , triglyceride , gene expression , gene , inflammation , biology , emulsion , genetics , cholesterol , biochemistry

Summary Lipid emulsion (LE) containing medium/ω‐6 long chain triglyceride‐based emulsion (MCT/ω‐6 LCT LE) has been recommended in the place of ω‐6 LCT‐based emulsion to prevent impairment of immune function. The impact of MCT/ω‐6 LCT LE on lymphocyte and neutrophil death and expression of genes related to inflammation was investigated. Seven volunteers were recruited and infusion of MCT/ω‐6 LCT LE was performed for 6 h. Four volunteers received saline and no change was found. Blood samples were collected before, immediately afterwards and 18 h after LE infusion. Lymphocytes and neutrophils were studied immediately after isolation and after 24 and 48 h in culture. The following determinations were carried out: plasma‐free fatty acids, triacylglycerol and cholesterol concentrations, plasma fatty acid composition, neutral lipid accumulation in lymphocytes and neutrophils, signs of lymphocyte and neutrophil death and lymphocyte expression of genes related to inflammation. MCT/ω‐6 LCT LE induced lymphocyte and neutrophil death. The mechanism for MCT/ω‐6 LCT LE‐dependent induction of leucocyte death may involve changes in neutral lipid content and modulation of expression of genes related to cell death, proteolysis, cell signalling, inflammatory response, oxidative stress and transcription.

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