The aim of the study is to determine antioxidant, anti-inflammatory and hypolipidemic activities of the extracts from Cosmos bipinnatus Cav. three varieties, obtained by the extraction with 70% ethyl alcohol.Materials and methods. The antioxidant effect was studied in vitro using a model of iron-induced lipid peroxidation in the lecithin liposome system. The study of the anti-inflammatory activity was carried out on 30 male rats of the “Wistar” line. Diclofenac was used as a reference drug (p. o., the dose of 13 mg/kg in terms of the weight of an adult). The substances were administered to animals in the form of an aqueous suspension stabilized with Tween-80. To simulate the inflammatory process, a model of “cotton granuloma” was created. A hypolipidemic activity of the extracts was studied on 36 white male rats of the “Wistar” line. To study the hypolipidemic activity of the studied extracts, a tween model was used to create a hyperlipidemic state in rats, the concentrations of total cholesterol and triglycerides was determined in the serum of the experimental animals.Results. The conducted model experiments made it possible to conclude that the alcohol extracts obtained from the dried inflorescences of the “Dazzler”, “Rosea” and “Purity” varieties of Cosmos bipinnatus Cav. have antioxidant, anti-inflammatory and hypolipidemic kinds of activities. It has been established that the extracts from the “Dazzler” and “Rosea” varieties (Cosmos bipinnatus Cav.) contribute to a better reduction in the accumulation of peroxide compounds, compared to the extract obtained from the “Purity” variety. The data analysis on the anti-inflammatory activity shows that all the studied objects significantly (p = 0.05) reduce the stage of exudation compared with the control group animals by 50% (the «Purity» variety), by 52% (the «Rosea» variety) and by 40% (the “Dazzler” variety).An experiment on the study of a hypolipidemic activity in the control group of the animals revealed a significant, in relation to the values of the intact group, increase in the cholesterol level of the blood serum by 78%, and in the level of triglycerides (TGCs) – by 64%.The administration of the extracts obtained from Cosmos bipinnatus Cav. “Purity”, “Rosea”, “Dazzler” varieties to the animals, led to a decrease in cholesterol in blood serum by 44%, 47%, 50%, and triglycerides by 52%, 52% and 57%, respectively. Both indicators reached the normal level and did not differ significantly from the values in healthy (intact) animals.Conclusion. According to the conducted studies, it can be concluded that alcohol extracts obtained from Cоsmos bipinnatus Cav., have pronounced antioxidant, anti-inflammatory and hypolipidemic kinds of effect.
Vital physiological and metabolic processes occurring in the human body are associated with free radical oxidation, which affects the structure, permeability and physico-chemical properties of biological membranes. Horse sorrel is used for scurvy, gout, diabetes, jaundice, hypertension, rheumatism, skin diseases – scabies, lichen, eczema, burns, as well as diseases of the digestive and cardiovascular systems. The purpose of the research: to study the technology of obtaining liquid extract of horse sorrel roots and to study its antioxidant activity on the body. Liquid extract of horse sorrel roots and auxiliary substances were used as the object of the study: dimethyl sulfoxide DMSO, ethyl alcohol 96%, quercetin, lecithin. When performing the work, equipment was used: liquid chromatograph "Color Yauza-01-AA", SF-LEKISS 1207UV. The object of the study of the total antioxidant activity were extracts of horse sorrel roots obtained using ethyl alcohol in concentration: 30%, 40%, 50%, 60%, 70%, 80%. The total content of antioxidants in the studied liquid extracts of horse sorrel roots was determined by two methods: using a liquid chromatograph "Color Yauza-01-AA" with an amperometric detector. The quantitative content of antioxidants was determined according to the calibration schedule. The conversion was carried out for gallic acid and quercetin. Using a model of iron-induced lipid peroxidation in the system of lecithin (phosphotidylcholine) liposomes, the studied liquid extracts were evaluated by reducing the accumulation of peroxide compounds. The study was carried out at a concentration of 200 mcg/ml to 500 mcg/ml of horse sorrel extract and increasing the dose.
Antioxidants are widely used in practical medicine. Not only the search for new plant antioxidants, but also the study of the factors affecting their accumulation in plants, are relevant.The aim is to study the interrelation between the activity of mitochondrial enzymes and the antioxidant activity of the secondary polyphenolic nature metabolites in hemiparasite Viscum Album L. leaves.Materials and methods. The sampling material was Viscum album L. leaves, collected in winter from a host tree, Malus domestica Borkh. The extraction of biologically active substances was carried out with ethyl alcohol of various concentrations (90%, 70% and 50%), or purified water. The amount of total antioxidants was estimated by the amperometric method. The amount of total phenols was evaluated in the reaction with the Folin-Ciocalteu reagent. The concentration of total flavonoids was estimated by the change in the optical density of the rutin with aluminum (III) chloride complex. The antioxidant properties of the analyzed extracts were determined in vitro in the induced lipid peroxidation test. The activity of aconitase was assessed by a conjugated aconitase-isocitrate dehydrogenase reaction, citrate synthase – by changing the color intensity of the Ellman reagent solution, succinate dehydrogenase were determined in the reaction of succinate-dependent oxidation of 2,6-dichlorophenolindophenol.Results. The carried out study showed that the maximum amount of total phenols (2.39±0.05%) is observed in a 50% ethanol extract from Viscum album L. leaves, with the content of total flavonoids equal to 1.83±0.04%, and the antioxidants equal to 0.503±0.007 mg/g (a quercetin equivalent) and 0.322±0.006 mg/g (a gallic acid equivalent). A 50% ethanol extract suppressed lipid peroxidation in the model mixture with IC50=106.3±1.09 µg/ml. In Viscum album L. leaves, a high activity of aconitase which strongly correlated (r=0.88416) with changes in the concentration of flavonoids, has been notified.Conclusion. The optimal extractant for obtaining extracts with a high antioxidant activity is 50% ethyl alcohol. The analysis of the mitochondrial enzymes activity showed that in Viscum album L. leaves collected in winter, a high activity of aconitase strongly correlated with changes in the concentration of flavonoids (r=0.88416).
The mortality rate due to cardiovascular pathologies occupies a significant place. Reduced vascular resistance is the cause of diseases - coronary heart disease, atherosclerosis, chronic and acute cerebral circulatory insufficiency, retinopathy, etc. Increasing vascular resistance to free radical, atherosclerotic, toxic, autoimmune and other types of damage is the most urgent task of treatment and prevention of vascular and many other destructive diseases of the central nervous system. Ceylon cinnamon is widely used in inflammatory processes, has antispasmodic, analgesic, tonic, antiseptic properties, is used for disorders of the gastrointestinal tract, and is also a natural antibiotic, improves memory and concentration. By chemical composition, Ceylon cinnamon contains B vitamins, as well as macro- and microelements: iron, potassium, copper, phosphorus, selenium, sodium, calcium, zinc. The object of the study is a liquid extract of Ceylon cinnamon obtained by extraction using 70% ethyl alcohol. A method of quantitative determination for proanthocyanidins in a liquid extract of Ceylon cinnamon has been developed, which is based on the acid cleavage of proanthocyanidins in the presence of a catalyst (Fe3+ ions) to anthocyanidins. During the experiment, it was found out that the extract under study has an anti-inflammatory activity superior to the tincture of sabelnik and its angioprotective activity is proved to be significantly higher than the comparison drug "Blueberry Forte" produced by the pharmaceutical company "Evalar". The obtained research results show the prospects of using Ceylon cinnamon extract liquid for the prevention and treatment of vascular diseases.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.