Search results for "ACIDE GRAS POLYINSATURE N-6"

showing 2 items of 2 documents

Polyunsaturated fatty acids in cultured cardiomyocytes : effect on physiology and beta-adrenoceptor function

1992

This study was carried out to investigate the influence of the membrane fatty acid composition on the basal electrical and contractile activities and the response to beta-adrenergic stimulation of rat cardiac muscle cells in culture. Cells were grown for 3 days in a conventional serum culture medium and then incubated for 24 h in synthetic media containing either n-6 or n-3 as the sole source of polyunsaturated fatty acids (PUFA). The n-6/n-3 ratio in the phospholipids was 0.9 in the n-3 cells and 13.1 in the n-6 cells compared with 6.3 in controls cells. Such modifications did not alter action potentials and the main parameters related to contraction, although shortening was slightly acce…

Chronotropicmedicine.medical_specialtyContraction (grammar)PhysiologyPhospholipidStimulation030204 cardiovascular system & hematologyBiology03 medical and health scienceschemistry.chemical_compound0302 clinical medicineHeart RatePhysiology (medical)Internal medicineReceptors Adrenergic betamedicineMyocyteAnimalsCells CulturedComputingMilieux_MISCELLANEOUS030304 developmental biologychemistry.chemical_classification0303 health sciences[SDV.MHEP] Life Sciences [q-bio]/Human health and pathologyPOTENTIEL ELECTRIQUEMyocardiumFatty AcidsCardiac muscleIsoproterenolHeartMyocardial ContractionElectrophysiologyEndocrinologymedicine.anatomical_structureACIDE GRAS POLYINSATURE N-6chemistryCell cultureFatty Acids UnsaturatedACIDE GRAS POLYINSATURE N-3RATCardiology and Cardiovascular Medicine[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyPolyunsaturated fatty acid
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Effect of 18:3 n-3 geometrical isomers of heated linseed oll on the biosynthesis of arachidonic acid in rat

1990

Abstract The influence of dietary heated linseed oil on the fatty acid composition of rat liver, platelet and plasma phospholipids (PL) with particular reference to the metabolism of linoleic acid (18:2 n-6) were studied. Δ6 and Δ5 desaturase activities and fatty acid composition of hepatic microsomal total lipids (TL) also were determined. Two groups of male weanling rats were fed, for 6 weeks, diets containing 10% (in weight) of a fresh linseed oil (LO group) and of a heated linseed oil (HLO group). The contents of geometrical isomers of linolenic acid (18:3 n-3) were high in the oil heated at 240°C for 10 hours. The pattern of arachidonic acid (20:4 n-6) in the different lipid fractions …

food.ingredient030309 nutrition & dieteticsLinolenic acid[SDV]Life Sciences [q-bio]Endocrinology Diabetes and MetabolismLinoleic acidPhospholipidBiology03 medical and health scienceschemistry.chemical_compoundEndocrinologyfoodLinseed oilFood science030304 developmental biologychemistry.chemical_classification0303 health sciencesNutrition and DieteticsFatty acidMetabolismPLAQUETTE SANGUINEACIDE GRAS POLYINSATURE N-6chemistryBiochemistryRATArachidonic acidPolyunsaturated fatty acidNutrition Research
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