scholarly journals In vitro immunitary impact and antioxidant activity of aqueous extracts of Maprounea africana Müll (Euphorbiaceae) and Mitragyna stipulosa O.Kze (Rubiaceae)

2017 ◽  
Vol 6 (5) ◽  
pp. 260-263
Author(s):  
Morabandza Cyr Jonas ◽  
◽  
Nkounkou Loupangou Celestine ◽  
Etou Ossibi Arnaud Wilfrid ◽  
Ongoka Pascal Robin ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Stem Bark ◽  
Aqueous Extracts ◽  
Hydrogen Peroxide Production ◽  
Total Lymphocyte ◽  
Production Of Hydrogen ◽  
New Compounds

This study aims to investigate the in vitro immunitary impacts and antioxidant activity of aqueous extracts of Maprounea africana (Euphorbiaceae) leaves and Mitragyna stipulosa (Rubiaceae) stem barks. Impact on leukocyte cells (total lymphocyte, polynuclears, monocyte, NK, TCD8 and TCD4) was quantified by using flow cytometry and, antioxidant activity by quantification of hydrogen peroxide production after immunomarking of specific monoclonal antibodies. The results showed a significant descrease of total lymphocyte, polynuclear, NK, TCD8 and, a non-significant descrease of TCD4 and monocyte induces by aqueous extract of M. africana leaves. Whereas aqueous extract of the stem bark of M. stipulosa induces a significant increase of total lymphocyte, TCD4, NK, TCD8 and, a significant descrease of polynuclear and monocyte. The two extracts significantly reduce (p˂0.001) the production of hydrogen peroxid by polynuclear, lymphocytes and monocytes. These results suggest an immunomodulatory and immunostimulant effect of M. africana and M. stipulosa respectively and, antioxidant activity. The present study established pharmacological evidence to support traditional uses of these two species and may open up the possibility of finding the new compounds against immunological desseases.

scholarly journals In VitroEffect of Aqueous Extract and Fraction IV Portion ofXimenia americanaStem Bark onTrypanosoma congolenseDNA

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Victor Ambrose Maikai ◽  
Beatty Viv Maikai ◽  
Patricia Ishyaku Kobo
Keyword(s):  
Cell Death ◽  
Aqueous Extract ◽  
Gel Electrophoresis ◽  
Stem Bark ◽  
Trypanosoma Congolense ◽  
Aqueous Extracts ◽  
Agarose Gel Electrophoresis ◽  
Tropical Africa ◽  
And Control

Trypanosomosis is a debilitating disease affecting mainly livestock and humans in tropical Africa. Chemically synthesized drugs and medicinal plants have been used in the treatment and control of this disease. In this study, thein vitroeffect of aqueous extracts and fraction IV extract ofXimenia americanastem bark onTrypanosoma congolenseDNA was investigated. The extracts were incubated with the parasitesin vitroat 300 mg/mL aqueous extract and 25 mg/mL fraction IV portion for 30, 60, and 120 mins. The DNA of the trypanosomes was isolated and digested using ECOR1 enzyme and subsequently PCR was carried out. Results showed that aqueous extract and fraction IV portion immobilized 55% and 90% of the trypanosomes after 30-minute incubation. Subsequent isolation of the parasite DNA and agarose gel electrophoresis did not reveal that cell death was as a result of DNA fragmentation. This suggests that cell death was by another mechanism of action.

Antioxidant and anti-diabetic activity of pomegranate (Punica granatum L.) leaves extracts

2020 ◽  
Vol 8 (2) ◽  
pp. 329-336
Author(s):  
Mohammed Cheurfa ◽  
Mohamed Achouche ◽  
Ahmed Azouzi ◽  
Mariod A. Abdalbasit
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Extract ◽  
Punica Granatum ◽  
Aqueous Extracts ◽  
Total Polyphenols ◽  
Hydroalcoholic Extract ◽  
Dpph Test ◽  
Total Antioxidant ◽  
Punica Granatum L

Introduction. This study aimed to evaluate the antioxidant and anti-diabetic activity of aqueous and hydroalcoholic extracts of pomegranate (Punica granatum L.) leaves in vitro, as well as to determine the content of polyphenols, flavonoids, and flavonols. Study objects and methods. The antioxidant activity was determined by the DPPH test using the free radical 1,1-diphenyl-2-picrylhydrazyle and the FRAP method, as well as by measuring total antioxidant capacity and the hydrogen peroxide scavenging activity. Results and discussion. The content of total polyphenols varied between 4.43 ± 0.3 and 12.66 ± 1.6 mg EAG/g. The highest content of flavonoids was observed in the hydroalcoholic extract of P. granatum leaves (P < 0.05). The flavonol contents in the hydroalcoholic and aqueous extracts were 7.68 ± 0.6 and 9.20 ± 2.8 mg EQ/g, respectively. The IC50 of the antioxidant potential of the hydroalcoholic and aqueous extracts was 32.4 ± 1.109 and 35.12 ± 4.107 mg/mL, respectively. According to the DPPH test, the aqueous extract was the least active (IC50 = 14.15 ± 1.513 mg/mL). The highest percentage of hydrogen peroxide trapping was found in the aqueous extract (45.97 ± 6.608 %). The inhibition of α-amylase showed an IC50 of between 9.804 ± 0.67 and 19.011 ± 9.82 mg/mL in the aqueous and hydroalcoholic extracts, respectively. The inhibition of glucose uptake by yeast recorded a high inhibitory capacity at 50 mg/mL of glucose. Conclusion. We found that the antioxidant and anti-diabetic activity of P. granatum leaves extracts was due to the presence of bioactive compounds such as flavonoids, which is why they are effective in preventing diabetes and its complications.

scholarly journals In Vitro Antioxidant Activity of Aqueous and Alcoholic Extracts of Polyherbal Formulation Consisting of Ficus glomerata Roxb. and Symplocos racemosa Roxb. Stem Bark Assessed in Free Radical Scavenging Assays

2017 ◽  
Vol 9 (2) ◽  
Author(s):  
Mradu Gupta ◽  
Nandita Karmakar ◽  
Saswati Sasmal
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Aqueous Extract ◽  
Radical Scavenging ◽  
Stem Bark ◽  
Free Radical Scavenging ◽  
Peroxide Radical ◽  
Ficus Glomerata ◽  
Symplocos Racemosa

In vitro antioxidant free radical scavenging capacities of aqueous and alcoholic extracts of herbal drug containing stem bark of Ficus glomerata Roxb. and Symplocos racemosa Roxb. were evaluated. IC50 (µg/ml) of alcoholic, aqueous extract and Ascorbic Acid was found to be 41.529 ±10.135, 39.654 ±4.022and 17.511 ±1.17 in Hydrogen Peroxide Radical Scavenging, 1825 ±122, 1035 ±090 and 207 ±006 in DPPH radical scavenging, and 42.024 ±16.816, 49.926 ±16.240 and 5.503 ±0.545 during FRAP essay. Similarly, during ABTS radical scavenging, IC50 (µg/ml) was assessed as 28.088 ±5.618, 23.731 ±4.870 and 6.728 ±0.213 for alcoholic, aqueous extract and Trolox respectively. Alcoholic and Aqueous extracts exhibit high antioxidant activity possibly due to higher phenolic and flavonoid content

scholarly journals Comparative Studies On The Phytochemical Screening And In Vitro Antioxidant Activities Of Aqueous Extracts Of Garcinia Kola Stem And Root Barks

2020 ◽  
Vol 1 (3) ◽  
Author(s):  
Philip O. Amira ◽  
Adebayo S. Daramola ◽  
Ayobioloja A. Philomina ◽  
Salau A. Ibukun
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Properties ◽  
Stem Bark ◽  
Bark Extract ◽  
Root Bark ◽  
Aqueous Extracts ◽  
Dpph Assay ◽  
Garcinia Kola ◽  
Total Antioxidant

Phytochemicals are natural chemicals of plant origin that have implicated in anti-disease mechanism. Antioxidant are insulator of the process of the oxidation even at relatively small concentration and this have diverse physiological role in the body. They are naturally occurring in the medicinal plants, vegetables, leaves and roots that have defense mechanism and protect from various diseases as well inhibit, or delay the oxidation of other molecules by inhibiting the initiation or propagation of oxidizing chain reaction. Garcinia kola is a tropical flowering plant grown mainly in West and Central Africa. Garcinia kola is known for its anti-inflammatory and antioxidant properties. Therefore, comparative studies on the phytochemical screening and in vitro antioxidant activity on aqueous extracts of stem and root of Garcinia kola were investigated to assess their antioxidant properties in different antioxidant property determination assays. Aqueous extracts of Garcinia kola stem and root bark revealed the presence of tannins, resin, saponins, flavonoids, phenols, carbohydrates and alkaloids. In addition, the aqueous root bark extract of the plant contained phlobatanins and sterols while its stem bark aqueous extract contained terpenoids. The IC50 (μg/ml) values of the stem bark extract were 108.35 ± 7.70, 122.81 ± 3.98, 0.20 ± 0.01, 0.16 ± 0.01 and 0.43 ±0.01 for total antioxidant capacity (AAE), ferric reducing antioxidant activity (AAE), diphenyl picryl hydrazyl (DPPH) assay, nitric oxide (NO) scavenging activity and metal chelating activity respectively. On the other hand, the IC50 (μg/ml) values of the root bark extract were 31.54 ± 2.72, 30.50 ± 0.96, 2.26 ± 0.13, 4.36 ± 0.52 and 0.75 ± 0.04 for total antioxidant capacity (AAE), ferric reducing antioxidant activity (AAE), diphenyl picryl hydrazyl (DPPH) assay, nitric oxide (NO) scavenging activity and metal chelating activity respectively. Consequently, both the stem bark and root bark extracts generally exhibited remarkable in vitro antioxidant properties with respect to the parameters investigated.

scholarly journals IN VITRO STUDIES ON ANTIOXIDANT AND ANTIDIABETIC ACTIVITY OF PLEUROTUS EOUS MUSHROOM IN METHANOL AND AQUEOUS EXTRACT

2018 ◽  
Vol 11 (5) ◽  
pp. 259 ◽  
Author(s):  
Shoba K ◽  
Krishnakumari S
Keyword(s):  
Hydrogen Peroxide ◽  
Antioxidant Activity ◽  
Hydroxyl Radical ◽  
Aqueous Extract ◽  
In Vitro Studies ◽  
Antidiabetic Activity ◽  
In Vitro Methods ◽  
Pleurotus Eous ◽  
Mushroom Extracts

Objective: The present study evaluates the antioxidant and antidiabetic activity of the mushroom.Methods: Antioxidant activity was evaluated using hydroxyl radical, hydrogen peroxide, and antidiabetic activity using α-amylase and α-glucosidase.Result: The antioxidant IC50 for the mushroom extracts methanol and aqueous(Hydroxyl radical) was found to be 290,440μg/ml (Hydrogen peroxide) 475,370 μg/ml and antidiabetic(α Amylase) IC50 was found to be 460,500 μg/ml and (α Glucosidase) 325,280 μg/ml respectively.Conclusion: The result obtained in the in vitro methods suggests that Pleurotus eous mushroom can be administered for its antioxidant and antidiabetic activity

scholarly journals Microwave-Assisted Synthesis, Characterization, Antimicrobial and Antioxidant Activity of Some New Isatin Derivatives

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
G. Kiran ◽  
T. Maneshwar ◽  
Y. Rajeshwar ◽  
M. Sarangapani
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Radical Scavenging ◽  
Microwave Assisted Synthesis ◽  
Stable Free Radical ◽  
Ft Ir ◽  
Antimicrobial And Antioxidant Activity ◽  
New Compounds ◽  
Isatin Derivatives

A series of β-Isatin aldehyde-N,N′-thiocarbohydrazone derivatives were synthesized and assayed for theirin vitroantimicrobial and antioxidant activity. The new compounds were characterized based on spectral (FT-IR, NMR, MS) analyses. All the test compounds possessed a broad spectrum of activity having MIC values rangeing from 12.5 to 400 μg/ml against the tested microorganisms. Among the compounds3e,3jand3nshow highest significant antimicrobial activity. The free radical scavenging effects of the test compounds against stable free radical DPPH (α,α-diphenyl-β-picryl hydrazyl) and H2O2were measured spectrophotometrically. Compounds3j,3n,3l, and3e, respectively, had the most effective antioxidant activity against DPPH and H2O2scavenging activity.

scholarly journals Mutagenicity evaluation of Anastatica hierochuntica L. aqueous extract in vitro and in vivo

2017 ◽  
Vol 243 (4) ◽  
pp. 375-385 ◽  
Author(s):  
Siti Rosmani Md Zin ◽  
Zahurin Mohamed ◽  
Mohammed A Alshawsh ◽  
Won F Wong ◽  
Normadiah M Kassim
Keyword(s):  
Aqueous Extract ◽  
Positive Control ◽  
In Vitro Assay ◽  
In Vivo Study ◽  
Sufficient Evidence ◽  
Aqueous Extracts ◽  
Mutagenic Potential ◽  
Vitro Assay

Anastatica hierochuntica L. ( A. hierochuntica), a folk medicinal plant, was evaluated for mutagenic potential via in vitro and in vivo assays. The in vitro assay was conducted according to modified Ames test, while the in vivo study was performed according to Organisation for Economic Co-operation and Development guideline for mammalian erythrocyte micronucleus assay. Four groups ( n= 5 males and 5 females per group) Sprague Dawley rats were randomly chosen as the negative control, positive control (received a single intramuscular injection of cyclophosphamide 50 mg/kg), 1000 and, 2000 mg/kg A. hierochuntica aqueous extracts. All groups except the positive control were treated orally for three days. Findings of the in vitro assay showed mutagenic potential of AHAE at 0.04 and 0.2 mg/ml. However, no mutagenic effect was demonstrated in the in vivo study up to 2000 mg/kg. No significant reduction in the polychromatic and normochromatic erythrocytes ratio was noted in any of the groups. Meanwhile, high micronucleated polychromatic erythrocytes frequency was seen in cyclophosphamide-treated group only. These findings could perhaps be due to insufficient dosage of A. hierochuntica aqueous extracts to cause genetic damage on the bone marrow target cells. Further acute and chronic in vivo toxicity studies may be required to draw pertinent conclusion on the safety aspect of A. hierochuntica aqueous extracts consumption. Impact statement In this paper, we report on the mutagenicity evaluation of Anastatica hierochuntica aqueous extract. This is a significant research in view of the popularity of this herb consumption by the people across the globe despite of limited scientific evidence on its toxicity potential. This study is intended to encourage more extensive related research in order to provide sufficient evidence and guidance for determining its safe dosage.

Chenopodium quinoa Exhibits Antihyperglycemic Activity in Streptozotocin-Induced Diabetic Rats

2021 ◽  
Vol 19 ◽  
Author(s):  
Amine Azzane ◽  
Ayou Amssayef ◽  
Mohame Eddouks
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Histopathological Examination ◽  
Chenopodium Quinoa ◽  
Diabetic Rats ◽  
Favorable Effect ◽  
Antihyperglycemic Activity ◽  
Glucose Levels ◽  
Blood Glucose Levels

Aims: The aim of the study was to evaluate the antihyperglycemic effect of Chenopodium quinoa. Background: Chenopodium quinoa is a pseudocereal plant with several medicinal properties. Objective: The goal of this investigation was to determine the antihyperglycemic activity of Chenopodium quinoa in both normal and streptozotocin(STZ)-induced diabetic rats. Methods: In this study, the effect of the aqueous extract of Chenopodium quinoa seeds (AECQS) (60 mg/kg) on blood glucose levels was evaluated in both normal and diabetic rats after a single (6 hours) and repeated oral administration (7 days of treatment). The effect of this herb on glucose tolerance and lipid profile was also studied. Additionally, histopathological examination of liver was carried out using the Hematoxylin-Eosin method. Furthermore, the in vitro antioxidant activity as well as a preliminary phytochemical screening and quantification of some secondary metabolites (phenolic compounds, flavonoids and tannins) were performed according to standard methods. Results: AECQS produced a significant lowering effect on plasma glucose levels in STZ-induced diabetic rats. In addition, this extract exhibited a remarkable amelioration on hepatic histopathology in diabetic rats. In addition, the extract exerted a remarkable antioxidant activity which could be due to the presence of some compounds found in this herb. Conclusion: In conclusion, this study demonstrates that the aqueous extract of Chenopodium quinoa seeds has a favorable effect in controlling diabetes mellitus.

scholarly journals Evaluation of wound healing and antimicrobial properties of aqueous extract from Bowdichia virgilioides stem barks in mice

2013 ◽  
Vol 85 (3) ◽  
pp. 945-954 ◽  
Author(s):  
ISABELA K.R. AGRA ◽  
LUANA L.S. PIRES ◽  
PAULO S.M. CARVALHO ◽  
EURIPEDES A. SILVA-FILHO ◽  
SALETE SMANIOTTO ◽  
...  
Keyword(s):  
Wound Healing ◽  
Latin American ◽  
Aqueous Extract ◽  
Antimicrobial Properties ◽  
Inflammatory Cells ◽  
Stem Bark ◽  
Wound Contraction ◽  
Type I ◽  
Folk Remedy

The decoction of the stem barks from Bowdichia virgilioides KUNTH is a folk remedy used to treat inflammatory disorders in Latin American and Brazil. In the present study, the wound healing activity of aqueous extract of the stem bark from B. virgilioides, called AEBv, was evaluated by the rate of healing by wound contraction and period of epithelization at different days post-wound using the wound excisional model. On day 9, the AEBv-treated animals exhibited significative reduction in the wound area when compared with controls. In wound infected with S. aureus, the AEBv significantly improved the wound contraction when compared to the saline-treated mice. The histological analysis showed that AEBv induced a collagen deposition, increase in the fibroblast count and few inflammatory cells than compared to saline-treated group. The expression of collagen type I was increased in the group treated with AEBv as indicated by immunohistochemical staining. In vitro, the AEBv was effective only against S. aureus but not against P. aeruginosa. Together, the results of this study demonstrate, for the first time, the healing and antimicrobiological effects of aqueous extract of the stem bark from B. virgilioides in the therapy of skin wounds.

scholarly journals Antioxidant Activities of the Aqueous Extracts of Pedalium murex D. Royen EX L. Fruit and Leafy Stem

2021 ◽  
pp. 1-9
Author(s):  
Gerard Bessan Dossou-Agoin ◽  
Habib Ganfon ◽  
Fidèle Assogba ◽  
Adam Gbankoto ◽  
Joachim Gbenou ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Lipid Peroxidation ◽  
Antioxidant Activity ◽  
Reducing Power ◽  
Total Phenolic ◽  
Scavenging Activity ◽  
Aqueous Extracts ◽  
Fruit Extract ◽  
Stem Extract ◽  
Dpph Scavenging

Aims: The leafy stem and fruit of P.murex have been reported to be used in folk medicine to treat male reproductive system ailments. This study was undertaken to assess the antioxidant potential of the aqueous extracts of P.murex leafy stem and fruit. Methodology: Extracts were prepared by macerating the powder in water. Total phenolics amount were determined by Folin-Ciocalteu reagent, flavonoids were quantified by aluminum chloride method and total tannin content was estimated by hexacyanoferric method. The in vitro antioxidant activity of the extracts were assessed through 2,2´-diphenyl-1-picrylhydrazyl (DPPH) scavenging assay, reducing power assay, hydrogen peroxide (H2O2) inhibition assay and lipid peroxidation assay. Results: Total phenolic compounds, flavonoids and tannins content were respectively equal to 48.91± 1.67 µg/mg Gallic Acid Equivalents (GAE); 56.01± 0.90 µg/mg Rutin Equivalents (RUE); 16.92± 1.22 µg/mg Tannic Acid Equivalents (TAE) for the leafy stem extract while they were equal to 26.26± 0.54 µg/mg GAE; 47.88± 2.39 µg/mg RUE; 7.94± 0.31 µg/mg TAE for the fruit. The leafy stem extract exhibited a more pronounced DPPH scavenging activity, reducing power, hydrogen peroxide scavenging activity and lipid peroxidation activity than the fruit extract. Conclusion: The antioxidant activity of the leafy stem aqueous extract was significantly more potent than that of the fruit extract. Further studies will find out the extracts pharmacological efficacy and innocuity.

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