Toxicological evaluation of a fish oil concentrate containing Very Long Chain Fa...

연구 요약

Toxicological evaluation of a fish oil concentrate containing Very Long Chain Fatty Acids.

Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 학술지에 발표된 이 연구는 Tobin D, Svensen H, Shanmugasundaram D 외 연구팀이 수행하였습니다.

이 연구는 'Toxicological evaluation of a fish oil concentrate containing Very Long Chain Fatty Acids.'에 대한 과학적 분석을 제공합니다.

핵심 내용

Very long chain fatty acids (VLCFA) have a chain length ≥24 carbons. Fish contain low levels of these fatty acids. A commercial oil called EPAX® Evolve 05 with an up-concentration of VLCFAs of approximately 10 times, has been developed as a dietary supplement by Epax Norway AS. A series of toxicological studies were performed using mice and rats to determine the safety and toxicity of repeat dosing with a gavage administered VLCFA formulation. The results suggest transient lipid accumulation in kidneys and liver. Lipid accumulation was seen with the test item and with the soya control but was not dose related. Liver and kidney lipid accumulation, whilst present in 14- day repeat dose study, was absent in a 90-day rat study. No treatment-effect was seen in urine analysis in any of the studies. No treatment-related effects were seen with a functional observation battery, ophthalmological examination, haematology, urine analysis, oestrus cycle, thyroid hormones, organ weight, or histopathology. In the 90-day study the liver enzymes ALP, AST and ALT were statistically significantly increased with test item but within control values. There were no associated histological findings in the liver suggesting there was no toxic effect and the normalisation of values for all liver enzymes in the recovery groups suggests an adaptive response rather than a prevailing toxic response. The no-observed-adverse-effect level (NOAEL) was determined as 1200 mg VLCFA/kg b.w./day.

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