0000000000845288

AUTHOR

Michel Lagarde

showing 2 related works from this author

Age-related changes in antioxidant defence mechanisms and peroxidation in isolated hepatocytes from spontaneously hypertensive and normotensive rats

1994

International audience; The effects of age and hypertension on the antioxidant defence systems and the lipid peroxidation in rat isolated hepatocytes were studied. Four different age groups (1, 3, 6 and 12 months) were considered in spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto (WKY) rats. Age-associated changes were observed on vitamin E status, glutathione (GSH) level, MDA formation and glutathione peroxidase (GSH-Px) activity in both strains. Maximal levels or activities of these parameters were found at 3 and 6 months, except for MDA which was low at 3 months. Then, a fall was observed at 12-month-old compared to 6-month values. In addition, GSH-Px activity was sig…

MaleAgingAntioxidantmedicine.medical_treatmentClinical BiochemistryDefence mechanisms030204 cardiovascular system & hematologyRats Inbred WKYAntioxidantsLipid peroxidationchemistry.chemical_compound0302 clinical medicineMalondialdehydeRats Inbred SHRVitamin E[SDV.BBM.BC] Life Sciences [q-bio]/Biochemistry Molecular Biology/Biochemistry [q-bio.BM]chemistry.chemical_classification0303 health sciencesbiologyGlutathione peroxidaseGeneral MedicineThiobarbituratesGlutathione[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry Molecular Biology/Biomolecules [q-bio.BM]GSH-PxLiverHypertensionhepatocytesmedicine.medical_specialtyClinical chemistry[SDV.CAN]Life Sciences [q-bio]/Cancer03 medical and health sciences[SDV.CAN] Life Sciences [q-bio]/CancerInternal medicinemedicineAnimalsMolecular Biology030304 developmental biologyGlutathione PeroxidaseVitamin ECell BiologyGlutathioneEnzyme assayRats[SDV.AEN] Life Sciences [q-bio]/Food and NutritionEndocrinologychemistryagebiology.proteinLipid Peroxidation[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
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Age-related changes in linoleic acid bioconversion by isolated hepatocytes from spontaneously hypertensive and normotensive rats

1994

This study points out the hepatocyte interconversion of the linoleic acid family during hypertension. Hepatocyte delta 6 desaturase activity was higher in 1 month-old spontaneously hypertensive rats than in normotensive controls. A similar tendency was observed in 6 month-old SHR. delta 5 desaturase activity was higher only in 1 month-old spontaneously hypertensive rats as compared to controls. Desaturase activities were particularly high at the age of 6 months. The hepatocyte fatty acid composition showed an impairment of n-6 polyunsaturated fatty acid metabolism in spontaneously hypertensive animals. Changes were greater in the young prehypertensive rats than in adults. A storage of n-3 l…

Agingmedicine.medical_specialtyClinical chemistryLinoleic acidClinical BiochemistryProstaglandinRats Inbred WKYLinoleic Acidchemistry.chemical_compoundRats Inbred SHRInternal medicinemedicineAnimalsMolecular Biologychemistry.chemical_classificationKidneyFatty AcidsCell BiologyGeneral MedicineMetabolismPeroxisomeRatsEndocrinologymedicine.anatomical_structureLinoleic AcidsLiverchemistryHepatocyteHypertensionPolyunsaturated fatty acidMolecular and Cellular Biochemistry
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