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In this paper, using high-performance liquid chromatography methods were quantitatively and qualitatively identified most biological important high fatty acids, contained in Rkatsiteli grape seed oil of 2010 years crop in Signakhi region of Georgia. The chromatography investigation showed, that the grape seed oil contained 61% linolic acid, 19% oleic, 8% palmitic, 4.5% stearic, 1.4% linolenic and 0.6% arachidonuic acids. In standard diet grape seed oil was added as a food additive (5.0 gr and 10.0 gr on 1.0 kg food). After 15 days fatty acids are carried out from mouse liver (120 inbred mouse), fractioned and using high-performance liquid chromatography the retention values of individual fatty asids are identiced. The investigation showed different sensitivity of components contained in grape seed oil.

Effects of arachidonic and other fatty acids on the intracellular Ca2+ concentration ([Ca2+]i) in rat peritoneal macrophages was investigated. It has been shown that cis-polyunsaturated arachidonic and linoleic induce a significant and dose-dependent increase in [Ca2+]i, which is due to depletion of thapsigargin-sensitive Ca2+ store and to stimulation of Ca2+ entry from the extracellular medium. Pharmacological characteristics of Ca2+ entry induced by arachidonic acid appeared to be similar to those of store-dependent Ca2+ entry activated by thapsigargin or cyclopiazonic acid; Ca2+ entry is attenuated by the same Ca2+ channel inhibitors, by tyrosine kinase inhibitor genistein and epoxygenase inhibitor proadifen. Cis-monounsaturated oleic and saturated myristic acids appeared to be less effective and induced only a slight increase in [Ca2+]i at much higher concentrations. Arachidonic and other fatty acids can also stimulate Ca(2+)-ATPase in the macrophage plasma membrane. The data are compatible with the important role played by arachidonic and other free fatty acids in the regulation of [Ca2+]i in peritoneal macrophages.