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Articles de revues sur le sujet « Antioxydant properties »

Auteur : Grafiati

Publié le 4 mai 2024

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1

Voloboy, N. L., Ya F. Zverev, V. M. Bryukhanov, et al. "Antioxydant and prooxydant effects of arbutin and hydrohinon in experiment in vitro." Bulletin of Siberian Medicine 10, no. 5 (2011): 41–44. http://dx.doi.org/10.20538/1682-0363-2011-5-41-44.

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The object of research is to compare antioxidant and prooxydant activity of arbutin and hydrochinon in vitro. Antioxidant and prooxydant activity of arbutin and hydrochinon is estimed of their ability to suppress/ induct oxydation ТВИН-80. Arbutin and hydrochinon have antioxydant and prooxydant properties. The conclusions are, that hydrochinon is more antioxydant, arbutin is more prooxydant.

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Noumedem, Jaurès A. K., Doriane E. Djeussi, Gerald Ngo Teke, Jean D. Tamokou, and Jules R. Kuiate. "Antibacterial, antioxydant and antidiarrheal properties of Tristemma hirtum P. beauv." Investigational Medicinal Chemistry and Pharmacology 3, no. 1 (2020): 1–7. http://dx.doi.org/10.31183/imcp.2020.00040.

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Boisfer, E., D. Stengel, D. Pastier, et al. "Human apolipoprotein A-II expression in mice decreases antioxydant properties of HDL." Atherosclerosis Supplements 2, no. 2 (2001): 72. http://dx.doi.org/10.1016/s1567-5688(01)80155-0.

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ALLAOUI, Amine, Khadidja ZOUD, Moncef NASRI, and Ahmed BOUALGA. "Antioxidant properties of ultrafiltration membrane fractions obtained from fenugreek (Trigonella foenum-graecum) proteins hydrolysates." Nutrition & Santé 07, no. 02 (2019): 78–85. http://dx.doi.org/10.30952/ns.7.2.5.

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Mamangkey, Jendri, Dwi Suryanto, Erman Munir, and Apon Zaenal Mustopa. "Antibacterial and Antioxidant Activity of Newly Keratinolytic Bacteria, Azotobacter chroococcum B4." International Journal of PharmTech Research 13, no. 2 (2020): 123–27. http://dx.doi.org/10.20902/ijptr.2019.130215.

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Keratinolyticbacteria of A. chrocoocum B4 was evaluated for its potential of antibacterial and antioxidant activity. Kirby-Bauer method was used to know antibacterial potential of B4 againtsStaphylococcus aureus, S. epidermidis, Bacillus cereus, Bacillus pumilus, Bacillus subtilis, Listeria monocytogenes, Proteus sp., enteropathogenicEscherichia coli, Enterobactersakazakii, and Salmonella enterica. Antioxydant test was done using DPPH radical scavenging activity assay with ascorbic acid as a controll. In this study, hydrolysate of pellet, dialysis, and fraction 25 of B4 keratinase purification

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Pozdnyakov DI, Pozdnyakov, Voronkov Voronkov AV, Zolotych Zolotych DS, and Arlt Arlt AV. "Antioxydant and Endotheliotropic Properties 4-Hydroxy-3,5-Di-Tret-Butyl Cinnamic Acid under Conditions of Experimental Brain Ischemia." Journal of Young Pharmacists 10, no. 2 (2018): 193–96. http://dx.doi.org/10.5530/jyp.2018.10.43.

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Nana, Olga, Jean Momeni, Fabrice Fekam Boyom, and Martin Benoît Ngassoum. "Influence of microwave assisted extraction on antioxidant and antiplasmodial activities of Trichilia roka extracts." Journal of Phytopharmacology 4, no. 5 (2015): 248–52. http://dx.doi.org/10.31254/phyto.2015.4502.

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Antiplasmodial and antioxidant activities of extracts derived from Trichilia roka (Chiov) (Meliaceae) root bark were determined respectively in vitro and using two methods as well as 1,1-diphenyl-2-picrylhydrazyl radicalscavenging and β-carotene-linoleate model systems. The microwave assisted extraction extract was more effective concern antioxydant activity than the antiplasmodial activity compare to conventional mechanical agitation extraction method. Extracts obtained by microwave assisted extraction showed a high total polyphenol content of 126766 μg Equivalent of Gallic acid /g Dry Mater

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Comlekcioglu, Nazan, Rıdvan Cirak, Akide Karmis, and Ashabil Aygan. "Evaluation of the chemical composition and biological activities of medicinal plants Alkanna tinctoria and Teucrium polium from Turkey." Croatian journal of food science and technology 14, no. 1 (2022): 52–62. http://dx.doi.org/10.17508/cjfst.2022.14.1.06.

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Since ancient times, natural products from various plants have been used for the treatment of different diseases. Alkanna and Teucrium species have been considered medicinal plants and are used popularly around the world. So, investigating the pharmaceutical properties of these plants has been the subject of interest for many researchers. In this work, total phenolic and flavonoid content, antioxydant, antimicrobial activity and in vitro enzyme inhibition properties of Alkanna tinctoria and Teucrium polium ethanol and methanol extracts were investigated. Additionally, GC-MS analyses of oil com

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Weyepe Lah, Fidèle Castro, Marius Balemaken Missi, Natasha October, et al. "Antibacterial and Antioxidant Activities of the Extract and Some Flavonoids From Aerial Parts of Echinops Gracilis O. Hoffm. (Asteraceae)." Natural Product Communications 16, no. 3 (2021): 1934578X2199915. http://dx.doi.org/10.1177/1934578x21999151.

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Mortality due to microbial diseases continues to be a major problem in many developing countries. The present study aims to evaluate the antibacterial and antioxidant activities of the ethyl acetate extract and some isolated compounds from aerial parts of Echinops gracilis. The phytochemical study resulted in the isolation of a new flavonoid derivative named apigenin-7- O-(4″-feruloyl)-β-D-glucoside (1), together with 2 known compounds: apigenin -7-O-(4″-trans- p-hydroxycinnamoyl) -β-D-glucoside (2), and apigenin -7-O-glucoside (3). Their chemical structures were determined using a combination

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Pincemail, Joël, Mouna-Messaouda Kaci, Claire Kevers, Jessica Tabart, Raymond Ebabe Elle, and Smail Meziane. "PAOT-Liquid® Technology: An Easy Electrochemical Method for Evaluating Antioxidant Capacity of Wines." Diseases 7, no. 1 (2019): 10. http://dx.doi.org/10.3390/diseases7010010.

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Polyphenol compounds present in high quantity in wines are well-known to have potent cardio-protective properties through several biological mechanisms including antioxidant activity [1]. A large number of methods have been developed for evaluating the antioxidant capacity of food matrices. Most of them have, however, the disadvantage of being time consuming and require specific analytical protocols and devices. In the present study, we present the electrochemical PAOT (Pouvoir Antioxydant Total)-Liquid® Technology which can be easily used by winemakers for evaluating antioxidant activity of w

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LAOUFI, Razika, Khaled BOUDJEMA, Samia LEFKIR, Narimen BENHABYLES, Ouahiba BOUCHENAK, and Karima YAHIAOUI. "Valorization and biological effect of Zizuphus jujuba Mill. vegetable oil." Nutrition & Santé 12, no. 01 (2023): 38–47. http://dx.doi.org/10.30952/ns.12.1.5.

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Abstract Introduction. The natural plant resources are products with high added value, used in various fields for the manufacture of a wide variety of products. Objective. The purpose of this study was the physicochemical and chromatographic characterization of Ziziphus jujuba seeds vegetable oil, and the evaluation of their antioxidant and anti-inflammatory activity. Material and methods. Seeds oil extraction was done by soxhlet. Fatty acid content was determined by gas chromatography (GPC). Organoleptic and physicochemical characteristics were determined, and antioxidant activity was evalua-

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Saragih S., Franscixkus Jamadin, I. Ketut Suter, and Ni Luh Ari Yusasrini. "ktivitas Antioksidan Dan Sifat Sensoris Teh Herbal Celup Kulit Anggur (Vitis vinifera L.) Pada Suhu Dan Waktu Pengeringan." Jurnal Ilmu dan Teknologi Pangan (ITEPA) 10, no. 3 (2021): 424. http://dx.doi.org/10.24843/itepa.2021.v10.i03.p10.

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   The research aimed to determine the effect of drying temperature and time on antioxidant activity and sensory properties of herbal tea bag of grape skin and to obtain the best of temperature and drying time that can produce grape skin herbal tea bag with highest antioxidant activity and the best sensory properties.This research used a completely randomized design with factorial pattern in two factors namely, drying temperature (50oC, 60oC, 70oC) and drying time (3.0 hours, 3.5 hours, 4.0 hours). There are 9 treatment combinatioms, each treatment combination was repeated 2

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Iermolenko, T. I., O. M. Shapoval, and A. V. Krivoshapkа. "ACTIVITY OF ANTIOXIDANT PROTECTION ENZYMES IN BLOOD AS A MARKER OF NEPHROPROTECTIVE EFFECT BY SODIUM POLY-(2,5-DIHYDROXYPHENYLEN)-4-THIOSULFATE ACID." Актуальні проблеми сучасної медицини: Вісник Української медичної стоматологічної академії 20, no. 1 (2020): 18–22. http://dx.doi.org/10.31718/2077-1096.20.1.18.

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The article presents the results of assessing the activity of catalase and superoxide dismutase enzymes in the blood as markers of the nephroprotective effect by sodium poly-(2,5-dihydroxyphenylen)-4-thiosulfate acid under conditions of ethylene glycol and glycerol acute kidney injury and gentamicin-induced nephropathy. The studies were conducted on 96 white mature, full-grown non-linear rats of both sexes weighting 180-200 grams. Models of acute kidney pathology in the rats were reproduced in accordance with the methodological recommendations of the Ministry of Health of Ukraine. Blood activi

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Zerkani, H., I. Tagnaout, Z. Khiya, et al. "Comparative Study of the Antioxidant Power of Polyphenols of Leaves, Fruits, and Bark of Pistacia atlantica Desf. from Morocco." Journal of Chemistry 2022 (May 20, 2022): 1–13. http://dx.doi.org/10.1155/2022/7432169.

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Pistacia atlantica Desf. is a widely used plant species in the traditional medicine for its various pharmacological properties. The aim of this study is the valorisation of polyphenols and the antioxidant power of three organs from Pistacia atlantica Desf. (leaves, fruits, and bark). Phytochemical screening of secondary metabolites was performed using precipitation and coloring reactions. Total phenols, flavonoids, and condensed tannins were quantified, respectively, by the Folin-Ciocalteu method, the aluminum trichloride method, and the vanillin method. Evaluation of the antioxidant activity

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Mbanga, L. "Antioxidant Properties of Some Plants Extracts Used As Natural Sunscreen in the Formulated Cream." Revue Congolaise des Sciences & Technologies 02, no. 01 (2023): 185–90. http://dx.doi.org/10.59228/rcst.023.v2.i1.23.

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The aim of the present research is to study the antioxidant properties of eight seeds [carrot, Moringa oleifera, soya bean, coconut, Cucurbita maxima (Ccm), palm walnut (Pmw), Vigna unguiculata called niebe and Citrullus lanatus (Ctl)] extracts using radical DPPH as model in view of their possible application as antisolar agents. Ethyl acetate seed extracts were prepared with methanol as solvent and the absorbance were recorded after reaction with the radical DPPH using UV-vis spectrophotometer. The EC50, the antiradical power (ARP) and the stoechiometry of eight seeds extracts were determinat

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Ismaili, Rachid, Sara Houbairi, Lanouari Sanâa, Moustaid Khadija, and Lamiri Abdeslam. "Etude De L’Activité Antioxydante Des Huiles Essentielles De Plantes Aromatiques Et Médicinales Marocaines." European Scientific Journal, ESJ 13, no. 12 (2017): 323. http://dx.doi.org/10.19044/esj.2017.v13n12p323.

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Morocco is a traditional supplier of medicinal and aromatic plants to the world. This activity has resulted to the exploitation of wild plants than dried plants for herbal needs and food flavors. Many species are used for the production of plant extracts and other aromatic essences mainly for the pharmaceutical and cosmetics industry. Among these metabolites, there are essential oils that are mixtures of aromatic substances present in the form of tiny droplets in the leaves, fruit peel, resin, branches, and wood. These oils, however, is endowed with antioxidant properties. This study aims to e

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Chaalal, Makhlouf, Siham Ydjedd, and Sana Mansouri. "Phenolic compounds and antioxidant activity of different parts of three mandarin varieties extracts: A comparative study." North African Journal of Food and Nutrition Research 4, no. 08 (2020): 318–24. http://dx.doi.org/10.51745/najfnr.4.08.318-324.

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Background: Mandarin by-products, such as peels and seeds, are considered as one of the naturel sources of phenolic compounds. Aim: The objective of the present study was to compare the phenolic compounds contents and antioxidant activity of different parts (pulps, seeds, juices, and peels) of three mandarins varieties extracts. Material and methods: Total phenolic, flavonoid, and proanthocyanidin contents of the extracts were assessed while, the antioxidant activity was evaluated using three tests including ferric reducing power, free radical scavenging activity, and phosphomolybdate. Results

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Galan, Pilar, Nathalie Noisette, Carla Estaquio, et al. "Serum ferritin, cardiovascular risk factors and ischaemic heart diseases: a prospective analysis in the SU.VI.MAX (SUpplementation en VItamines et Minéraux AntioXydants) cohort." Public Health Nutrition 9, no. 1 (2006): 70–74. http://dx.doi.org/10.1079/phn2005826.

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AbstractBackgroundIron has been suggested to play a role in the development of cardiovascular disease (CVD) through its pro-oxidant properties. However, epidemiological studies on iron status and the risk of CVD have yielded conflicting results. We therefore carried out a prospective study to evaluate the relationship between iron status and CVD in a middle-aged French population.MethodsIn total, 9917 subjects (3223 men aged 45–60 years and 6694 women aged 35–60 years) included in the SU.VI.MAX (SUpplementation en VItamines et Minéraux AntioXydants) cohort were followed prospectively for 7.5 y

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De Revel, Gilles, Tim Hogg, and Cristina Santos. "Analysis of cis- and trans-resveratrol in Portuguese wines." OENO One 30, no. 1 (1996): 31. http://dx.doi.org/10.20870/oeno-one.1996.30.1.1116.

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<p style="text-align: justify;"><em>Trans</em>-resveratrol (<em>trans</em>-3,5,4'-trihydroxystilbene) has been reported as contributing to the health promoting properties of wine. In this study wines made exclusively from native Portuguese varieties were assayed for the levels of <em>trans</em>-resveratrol. The method developed uses GC-FID and GC-MS determinations of TMS derivatives; derivatisation by hexamethyldisilazane following ether extraction of wines. Two currently used food antioxydants nordihydroguaiaretic acid (NDGA) and 2' ,4' ,5' -trihydrox

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Tine, Yoro, Madièye Sene, Khadidiatou Thiam, et al. "Revue des usages traditionnels, composition chimique et propriétés pharmacologiques de <i>Combretum glutinosum</i> (Combretaceae)." International Journal of Biological and Chemical Sciences 17, no. 6 (2024): 2475–89. http://dx.doi.org/10.4314/ijbcs.v17i6.27.

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Combretum glutinosum Perr. ex DC. (Combretaceae) est une plante médicinale largement utilisée en Afrique par les praticiens traditionnels pour le traitement de divers troubles comme les maladies respiratoires, la douleur, le paludisme et les infections microbiennes. En raison de sa large utilisation traditionnelle, dans cette revue, les rapports scientifiques publiés sur sa composition et ses propriétés pharmacologiques ont été explorés en effectuant une recherche documentaire dans les bases de données de Google Scholar, PubMed, Elsevier, ScienceDirect et Scifinder. Les études chimiques ont mo

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NACO, Mohamed El Béchir, Dalane Bernadette COULIBALY, Harouna TIRERA, et al. "Composition phytochimique et activité antioxydante des feuilles de Combretum micranthum G. Don (Combretaceae) collectées dans les régions de Kita (Mali) et de Thiès (Sénégal)." International Journal of Pharmaceutical, Physico-chemical and Nutritional Analysis 1, no. 1 (2021): 34–42. http://dx.doi.org/10.61585/pud-ijppna-v1i1a5.

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The plant kingdom contains a very wide variety of bioactive molecules such as phenolic compounds, terpenes and alkaloids that can exhibit antioxidant properties. The objective of the present study was to determine the phytochemical composition and the antioxidant potential of Combretum micranthum G. Don leaf extracts. After botanical identification according to their organoleptic characters, leaf powder samples were submitted to phytochemical screening carried out by the characterization reactions. Also, the contents of phytochemical groups were determined by spectrophotometry. The antioxidant

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Adjibade, Moufidath, Valentina A. Andreeva, Cédric Lemogne, et al. "The Inflammatory Potential of the Diet Is Associated with Depressive Symptoms in Different Subgroups of the General Population." Journal of Nutrition 147, no. 5 (2017): 879–87. http://dx.doi.org/10.3945/jn.116.245167.

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AbstractBackground: Low-grade chronic inflammation, which can be modulated by diet, has been suggested as an important risk factor for depression, but few studies have investigated the association between the inflammatory potential of the diet and depression.Objective: We investigated the prospective association between the inflammatory potential of the diet, measured by the Dietary Inflammatory Index (DII), and incident depressive symptoms and tested the potential modulating effect of sex, age, physical activity, and smoking status.Methods: This study included 3523 participants (aged 35–60 y)

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Никулина, O. Nikulina, Новак, Mikhail Novak, Енгашев, and Syergyey YEngashyev. "Methodical guidelines for diagnostics, treatment and prevention of canine babesiosis in the central area of the Russian Federation." Russian Journal of Parasitology 3, no. 3 (2016): 414–20. http://dx.doi.org/10.12737/21666.

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Objective of research: to study distribution and features of epizootic process at canine babesiosis in the central area of the Russian Federation as well as improvement of diagnostics, treatment and prevention measures. Materials and methods: Definition of species composition and number of ticks (Ixodidae) on dogs. Statistical analysis of veterinary reports from regional veterinary stations of the Ryazan region. Laboratory microscopic and serological diagnostic test for canine babesiosis. Results and discussion: Seasonal dynamics of activity of ixodid tick Dermacentor reticulatus (

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Igwe, R. O., I. I. Osakwe, J. T. Ogunnupebi, E. N. Okeh, and N. Etim,NseAbasi. "Effect of selenium on growth performance, haematological indices, carcass characteristics and sensory properties of broiler chicken." Nigerian Journal of Animal Production 49, no. 3 (2022): 152–59. http://dx.doi.org/10.51791/njap.v49i3.3545.

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The vital role of selenium in various metabolic reactions and its role as a component of antioxidant enzymes has awaken research interest in livestock production. Its influence on animal fertility, production and disease prevention is subject for on-going research. Deficiency of selenium have serious negative effect on animal skeletal and cardiac muscles which will in turn reduce growth, and there is dearth of information on its effect on growth performance, haematological indices and carcass characteristics of broiler chicken, the reason for this study. An experiment was carried out to invest

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Adeyemi, D. K., A. O. Adeluola, M. J. Akinbile, O. O. Johnson, and G. A. Ayoola. "Green synthesis of Ag, Zn and Cu nanoparticles from aqueous extract of Spondias mombin leaves and evaluation of their antibacterial activity." African Journal of Clinical and Experimental Microbiology 21, no. 2 (2020): 106–13. http://dx.doi.org/10.4314/ajcem.v21i2.4.

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Background: Nanotechnology offers an advantage as a green route for synthesis of metal nanoparticles (NPs) with plant extracts as capping agent. Spondias mombin is a fruit-bearing tree and its leaf extracts have been reported to possess anxiolytic, hypoglycaemic, antiepileptic, antipsychotic, sedative, antioxidant, and antimicrobial properties. The objective of the study is to determine the antibacterial potential of a simple non-toxic product of green synthesis of metallic (Ag, Zn and Cu) nanoparticles using the leaf of Spondias mombin aqueous extracts (SMAE) as a reducing and capping agents

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Haddi, Rihab, Aicha Maria El Kharraz, and Mimouna Ikram Kerroumi. "Green Synthesis of Zinc Oxide Nanoparticles Using Pistacia lentiscus L. Leaf Extact and Evaluating their Antioxydant and Antibacterial Properties." Nano Biomedicine and Engineering, December 2024. http://dx.doi.org/10.26599/nbe.2024.9290056.

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Anouhe, Jean-Baptiste Say, Florence Bobelé Niamké, Milcard Faustin, et al. "The role of extractives in the natural durability of the heartwood of Dicorynia guianensis Amsh: new insights in antioxydant and antifungal properties." Annals of Forest Science 75, no. 1 (2018). http://dx.doi.org/10.1007/s13595-018-0691-0.

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BENMAAROUF, DAOUIA KELTOUM, DIANA C. G. A. PINTO, BERNARD CHINA, SAFIA ZENIA, KHEIRA BOUZID BENDESARI, and MERIEM HIND BEN-MAHDI. "CHEMICAL ANALYSIS, ANTIOXIDANT, ANTI-INFLAMMATORY AND ANTINOCICEPTIVE EFFECTS OF ACETONE EXTRACT OF ALGERIAN SOLENOSTEMMA ARGEL (DELILE) HAYNE LEAVES." International Journal of Current Pharmaceutical Research, September 17, 2020, 72–81. http://dx.doi.org/10.22159/ijcpr.2020v12i5.39771.

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Objective: To investigate the qualitative composition of the acetonic extract from leaves of S. argel (AESA) and their anti-inflammatory and analgesic properties in vivo. Methods: AESA profile was established by UHPLC/DAD/ESI-MS2. AESA was subjected to the acute oral toxicity study according to the OECD-420 method. Antioxydant activity of AESA was performed by DPPH radical scavenging assay. Anti-inflammatory effects of AESA were determined in two animal models: carrageenan-induced paw edema in rats and cotton pellet-induced granuloma formation in rats. Further, anti-nociceptives activiti

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Retaileau, Kevin, Eric Belin de Chantemele, annelaure guihot, et al. "Abstract 1443: Angiotensin Ii Type 2 Receptor-dependent Dilation Is Reduced In Type Ii Diabetes Due To Cox-2 Generated Thromboxane A2 And Reactive Oxygen Species." Circulation 116, suppl_16 (2007). http://dx.doi.org/10.1161/circ.116.suppl_16.ii_297-a.

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The role of angiotensin II type 2 receptors (AT2R) is not fully understood, especially in vascular diseases. Although its vasodilatory and antitrophic properties are well accepted, in hypertensive rats AT2R stimulation induces vasoconstriction. Abnormalities in the renin-angiotensin system have a key role in cardiovascular disorders associated with the evolution of type II diabetes. Thus, we hypothesized that AT2R function might be altered in diabetic rats resistance arteries. Mesenteric resistance arteries (250 μm diameter) were isolated from type II diabetic Zucker (ZDF) and control rats (LZ

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