[Effects of parenteral lipid emulsions on immune system response].

Lipid solutions used in parenteral nutrition (PN) are generally well tolerated. Recent studies reporting their effects on the immune system indicate that various compositions can modulate the immune response, thus affecting the response to pathogens and autoaggressive diseases. In this review, we discuss the compositions of various commercially available lipid solutions and their effects on the immune response to various pathologies. We conclude that: 1. Soybean oil-based emulsions are immunosuppressive and should be used with caution in inflammatory conditions, and are contraindicated in sepsis. 2. Mixtures of medium chain triglycerides and soybean oil are better tolerated. 3. Olive oil-based mixtures are neutral and are especially recommended for burned patients, premature infants and for long term PN. 4. Fish oil-based emulsions are beneficial in inflammatory conditions and in patients after major abdominal surgery.