In vitro antioxidant and anti-arthritic effect of the aqueous and ethanolic leaf and root bark extract of Alafia barteri

2021 ◽  
Vol 10 (1) ◽  
pp. 10-14
Author(s):  
Ikeoluwapo Olanike Kolawole ◽  
◽  
Osareti Albert Taiwo Ebuehi ◽  
Esther Ayomide Awoyera ◽  
◽  
...  

Alafia barteri (Apocynaceae) is a climbing shrub having white or pink flowers. Traditionally, it has been used to treat diseases like malaria, sickle cell anemia, and eye infections. This research is focused on investigating the antioxidant and anti-arthritic activities of the aqueous and ethanol leaf and root extract of Alafia barteri plant in vitro. In-vitro antioxidant methods used were 2, 2 -diphenyl-1-picrylhydrazyl assay, reducing power activity and hydrogen peroxide scavenging assay while the anti-arthritic activity was studied using the assay method of protein denaturation. Results revealed that aqueous and ethanol root extracts scavenge free radicals, thus inhibiting damage caused by oxidative stress in arthritis while the ethanol extracts of both the leaf and roots had good anti-arthritic activities as seen in its ability to decrease protein denaturation.

2018 ◽  
Vol 7 (4) ◽  
pp. 392-398
Author(s):  
B.T Yunana ◽  
◽  
B. B Bukar ◽  
J. C Aguiyi ◽  
◽  
...  

The ethanol extracts of root, bark and leaf of Bridelia ferruginea was investigated for antibacterial activity against clinical isolate of Staphylococcus aureus and Escherichia coli. The extracts had significant antibacterial activity in vitro at concentration of 25 mg/ml, 50 mg/ml, 100 mg/ml and 200 mg/ml and in vivo at dose of 50 mg/kg and 100 mg/kg. The root extract in vitro had the highest zone of inhibition, followed by the bark extract for both Staphylococcus aureus and Escherichia coli. The concentration of 200 mg/ml had the highest zone of inhibition in vitro. The minimum inhibitory concentration (MIC) showed a decreasing inhibitory effect of the plant extracts for both Staphylococcus aureus and Escherichia coli as the concentration decreases with root having 3.125 mg/ml, bark having 6.25 mg/ml and leaf having 25 mg/ml for Staphylococcus aureus and Escherichia coli. Likewise, the minimum bactericidal concentration (MBC) showed decreasing bactericide effects with decrease concentration with root having 12.5 mg/ml, bark having 12.5 mg/ml and leaf having 25 mg/ml for Escherichia coli while root had 6.25mg/ml, bark had 12.5mg/ml and leaf had 25mg/ml for Staphylococcus aureus. The in vivo investigation showed that the root and bark extract exhibited antibacterial activity on both Staphylococcus aureus and Escherichia coli at doses of 100mg/kg and 50mg/kg; the root extract had higher activity than the bark and root/bark combined. The dose of 100 mg/kg had the highest colonies reduction for Staphylococcus aureus and Escherichia coli in vivo. Preliminary phytochemical screening of root, bark and leaves of Bridelia ferruginea revealed the presence of tannins, flavonoids, carbohydrates, cardiac glycoside (root, bark and leaves), saponins (root and bark). The presence of tannins, saponins, flavonoid, cardiac glycoside and carbohydrate in the bark and root extracts of the plant indicates that the bark and root extracts were pharmacological importance


2018 ◽  
Vol 5 (10) ◽  
pp. 417-426 ◽  
Author(s):  
Samanjit Kaur ◽  
M. Syed Ali ◽  
V. Anuradha ◽  
V. Suganya ◽  
A. Ashashalini ◽  
...  

In the present study, analysis of in vitro inflammatory showed whole plant of Rhizophora mucronata Lam. (Malpighiales: Rhizophoraceae) can be the potent source. The data from this study showed that the R. mucronata leaf, bark and root extract could serve as an important anti-inflammatory agent. Moreover, among the three extracts, the stilt root and leaves extract showed highest anti inflammatory. In vitro anti-inflammatory activity of the selected plant extracts was evaluated using albumin denaturation, membrane stabilization and proteinase inhibitory assays. As part of the investigation on the mechanism of the anti-inflammation activity, ability of extract protein denaturation was studied. Maximum inhibition (296.26%) was observed from root extract followed by bark (259.48%) and leaf (237.62%). The extracts inhibited the heat induced hemolysis of RBCs to varying degree as show in table below. The maximum inhibition 284.17% was observed from bark extract followed by root (265.05%) and leaf (232.61%). It reveals that these phytochemical constituents are responsible to maximum protection of protein denaturation, albumin denaturation and membrane stabilization assay. The future work will be determination of anti-inflammatory and anti-arthritic activities by in vivo models.


2019 ◽  
Vol 8 (1) ◽  
pp. 15-19
Author(s):  
Dinesh Kumar ◽  
R. Guna ◽  
E. Abbirami

Free radicals are unstable, highly reactive molecules, creates oxidative stress in our body by attacking healthy cells and tissue biomolecules. They are usually neutralized by the antioxidant mechanisms in our system. When the antioxidant mechanism fails to stabilize the radicals, we need external antioxidants to protect our cells from oxidative damage. The objective of present study is to evaluate the antioxidant and anti-inflammatory properties of stem and root extracts of the plant Cissus quadrangularis. Stem and root powders of CQ was extracted with different solvent and they were tested against the synthetic free radical DPPH, ABTS, NO, H2O2 and FRAP with the reference standard BHT. The in vitro anti-inflammatory activity assay was also performed for all the extracts along with the reference standard naproxen. The 50 percentage of inhibitory concentration (IC50-μg/ml of extract) values of ethanol fraction from both stem and root extract was found to be in DPPH- (IC50: 32±0.07 & 28±0.02), ABTS- (IC50: 115±0.22 & 120±0.06), NO- (IC50: 13±0.05 & 47±0.13), H2O2- (IC50: 21±0.08 & 28±0.09), TAA- (PI: 73±0.16 & 66±0.22) and the protein denaturation assay showed the ethanol fraction has protective activity levels of 220±0.03 & 277±0.22 in stem and root extracts respectively. Results obtained from this study suggested that both stem and root extracts of CQ possesses potential antioxidant and anti-inflammatory properties.


Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 920
Author(s):  
Magrate M. Kaigongi ◽  
Catherine W. Lukhoba ◽  
Souaibou Yaouba ◽  
Nokwanda P. Makunga ◽  
Joseph Githiomi ◽  
...  

Zanthoxylum paracanthum Kokwaro (Rutaceae) is an endemic Kenyan and Tanzanian plant used in folk medicine by local populations. Although other Zanthoxylum species have been studied, only Z. paracantum stem extracts have been profiled, even though the roots are also used as herbal remedies. As root extracts may be another source of pharmaceutical compounds, the CH2Cl2/MeOH (1:1) root bark extract was studied in this report. Eight root bark compounds were isolated and their structural identities were confirmed by mass spectrometry (MS) and nuclear magnetic resonance (NMR) (using COSY, HSQC, NOESY and HMBC) analyses. The structural identities were determined as follows: the fatty acid—myristic acid (1); the sterol—stigmasterol (2); the lignan—sesamin (3); two β-carboline alkaloids—10-methoxycanthin-6-one (6) and canthin-6-one (7); and three phenanthridine alkaloids—8-acetonyldihydrochelerythrine (4), arnottianamide (5) and 8-oxochelerythrine (8). Some of these compounds were identified in the species for the first time. These compounds and the extract were then tested in vitro against methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 29213) and Candida albicans (ATCC 10231) before tests for antiproliferative activity against the human breast cancer (HCC 1395), human prostate cancer (DU 145) and normal (Vero E6) cell lines were conducted. Minimum inhibition concentration values of 3.91, 1.95, 0.98 and 7.81 µg/mL against MRSA, S. aureus, E. coli and C. albicans, respectively, were recorded. Among the isolates, canthin-6-one was the most active, followed by 10-methoxycanthin-6-one. The root extract and some of the compounds also had antiproliferative activity against the HCC 1395 cell line. Stigmasterol and canthin-6-one had IC50 values of 7.2 and 0.42. The root bark extract also showed activity, at 8.12 µg/mL, against the HCC 1395 cells. Out of the chemical isolates, 10-methoxycanthin-6-one and canthin-6-one showed the strongest inhibition of the DU 145 cells. The root extract had significant antimicrobial and antiproliferative activities, supporting the traditional use of this plant in treating microbial infections and cancer-related ailments.


Author(s):  
Saranya Vtk ◽  
Uma Gowrie S

Objective: The current study was aimed to investigate the potential phytoconstituents from Casuarina equisetifolia root extract. Qualitative, quantitative and gas chromatography–mass spectrometry (GC-MS) analysis of C. equisetifolia using various solvents of root extract was also carried out to characterize the presence of various bioactive compounds in the root. The research work was also targeted to reveal the antibacterial, antioxidant, and anti-inflammatory potential of the root extract of C. equisetifolia.Methods: Root samples of C. equisetifolia were collected from Nimilenchery village, Pondicherry Union territory. The qualitative screening of the root extracts was carried out to check the presence of various phytoconstituents which was then followed by the quantitative analysis of phenols, flavonoids, and tannins. Further, the phytochemicals in the root extract were evaluated using GC-MS studies. In vitro antibacterial activity was performed by the agar well diffusion method using aqueous and organic solvent-based root extract against four different bacterial pathogens. In vitro antioxidant assay of different solvent extracts was elucidated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, hydrogen peroxide radical scavenging assay, and reducing power assay. Anti-inflammatory potential was also studied using protein denaturation of albumin.Results: The qualitative phytochemical screening revealed the presence of various phytoconstituents which is of greater biological importance. Gallic acid equivalent (GAE) phenolic compound content (68.64±0.25 mg GAE/g of extract), quercetin equivalent flavonoid content (29.09±0.14 mg of QUE/g of extract), tannic acid equivalent (TAE) tannin content (51±0.42 mg TAE/g of extract), and terpenoid content (5.2%) were found to be significant in the methanol root extract of C. equisetifolia when compared with other solvents. GC-MS analysis revealed different peaks indicating the presence of different secondary metabolites. Prominent antibacterial activity was observed in methanol extract of root, with maximum zone of inhibition exhibited against Proteus vulgaris (23.45±0.28 mm). The methanol root extract was most effective with half maximal inhibitory concentration (IC50) 52.74±0.65 μg/ml for DPPH and 64.94±0.24 μg/ml for hydrogen peroxide scavenging activity. Maximum absorbance was observed by 80 μg/ml (IC50 51.79±0.26 μg/ml) of methanol root extract with respect to reducing power assay. In vitro anti-inflammatory activity had maximum inhibition of 84.6±0.26 with IC50 value of 33.6±0.23 μg/ml at 80 μg/ml.Conclusion: From this study, it is revealed that the species of C. equisetifolia is a source of potential phytoconstituents exhibiting significantly various biological activities leading to the development of novel drug.


Author(s):  
Kavitha Yuvaraj ◽  
Arumugam Geetha

Abstract Background Chronic pancreatitis (CP) is a persistent inflammation of the pancreas clinically presented with severe abdominal pain, progressive fibrosis, and loss of exocrine and endocrine functions. Inflammasomes, cytosolic multiprotein complexes which regulate the formation of proinflammatory cytokines, are influenced by various factors including heat shock proteins (HSPs). Morus alba L., or white mulberry root bark is a valued traditional Asian medicine with a diverse array of phytochemicals. The aim of this investigation was to define the modulatory action of methanolic extract of Morus alba root bark (MEMARB) on NLRP3 inflammasome, and HSPs in pancreas subjected to inflammatory insult. Methods Pancreatitis was induced in male albino Wistar rats by ethanol (0–36%) and cerulein (20 µg/kg b.wt., i.p.) for 5 weeks with or without MEMARB administration. Serum lipase/amylase (L/A) ratio, oxidative stress index (OSI) and reduced glutathione (GSH)/oxidized glutathione (GSSG) ratio in the pancreas were evaluated. Levels of serum HSP70 was quantified by ELISA. NF-kappa B, NLRP3-ASC, caspase-1, IL-1β, IL-18, and HSP70 gene expression was quantified by quantitative real-time polymerase chain reaction (qPCR). Results L/A ratio and oxidative stress determined in terms of OSI and GSH/GSSG ratio were elevated in pancreatitis-induced rats. The levels were restored in MEMARB co-administered animals. Serum level of HSP70 was increased in pancreatitis-induced animals and dropped significantly in MEMARB co-administrated rats. Pancreatitis-induced group showed increased expression of NF-kappa B, IL-1β, IL-18, caspase-1, NLRP3-ASC and HSP70 mRNA than in MEMARB treated group. Conclusions It can be concluded that the M. alba root extract modulates the expression of HSP70 and NLRP3-ASC which might be attributed to its pancreato-protective effect.


2018 ◽  
Vol 4 (3) ◽  
pp. 114-119
Author(s):  
Quang Ung Le ◽  
◽  
Horng Liang Lay ◽  
Ming Chang Wu ◽  
◽  
...  

Agrimonia pilosa Ledeb (AL) has received considerable attention as a herbal medicine for its applications in ethnopharmacology with heath benefits. This study aimed to investigate antioxidant activities and A549 growth inhibitory capacity from its root extract (RE) and aerial parts extract (AE). The 50% ethanol extracts were used for the tests. The total polyphenol content and the antioxidant effects comprising ABTS+ and DPPH free radical scavenging activities were evaluated. Phenolic compounds in the extracts were isolated using high performance liquid chromatography (HPLC). Lactate dehydrogenase released in medium was also evaluated. Total phenolic and flavonoid content, and in vitro antioxidant potential of the RE were higher (p<0.01) than that of the AE. Two individual phenolic compounds consisting of 4-hydroxybenzoic acid and p-coumaric acid were firstly identified in both by HPLC. The RE exhibited higher A549 inhibitory capacity compared to the AE and activated the apoptotic proteins of bcl-2, bax, bad, caspase-3 and caspase-9 in A549. In conclusion, the AL extracts were more effective in antioxidant and A549 cells inhibitory capacity.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (04) ◽  
pp. 50-56
Author(s):  
K Ravishankar ◽  
Y.V.V.M. Lakshmi Prasanna ◽  
G.V.N. Kiranmayi ◽  

In vitro antioxidant and in vivo hepatoprotective activities of Cleome gynandra ethanolic leaf and root extracts were assessed. In vitro antioxidant activity was carried by DPPH, Nitric oxide, hydroxyl radical and phosphomolybdenum assays. Hepatoprotective activity was evaluated by Carbon tetrachloride (CCl4) induced hepatotoxicity in albino rats.The animals were divided into seven groups (Four test groups - Ethanolic Leaf and Root Extracts of Cleome gynandra of 100 mg/kg and 200 mg/kg, standard silymarin (100 mg/kg), toxic control-carbon tetrachloride and vehicle). On the eight day, the blood was collected and parameters like serum glutamic oxaloacetic transaminase (SGOT), Serum glutamic pyruvic transaminase (SGPT), Alkaline phosphatase (ALP) and Total bilirubin (TB) were estimated. Significant antioxidant status with good IC50 values similar to standard ascorbic acid was obtained. A significant decrease in liver enzymes was observed in test groups comparable to silymarin. From the results obtained, ethanolic leaf extract has contributed better hepatoprotection compared with root extract in experimental rats.


Author(s):  
SUPRIYA RAJA H

Objective: Knema attenuata (Myristicaceae), popularly known as “wild nutmeg,” is an endemic tree species from Western Ghats, which has been used in folk medicine. Conventionally, the stem bark of K. attenuata is used for treating inflammatory conditions without any scientific information available for the same. The present study was undertaken to evaluate the anti-inflammatory activity of the ethanolic stem bark extract (ESBE) of K. attenuata using in vivo and in vitro screening models. Methods: The ethanolic extract of stem bark was prepared by soxhlation, and its cytotoxicity in RAW 264.7 cell line was assessed using MTT assay method. In vivo anti-inflammatory effect of extract was estimated in rats using carrageenan-induced paw edema model and cotton pellet-induced granuloma model. The in vitro anti-inflammatory activity of the extract was evaluated by cyclooxygenase and lipoxygenase inhibition assay, estimation of myeloperoxidase activity, and determination of cellular nitrite levels in lipopolysaccharide-stimulated RAW 264.7 macrophage cells. Results: Toxic symptoms were not observed for the ESBE. The extract demonstrated significant anti-inflammatory activity in both in vivo and in vitro models. The anti-inflammatory action exhibited by the extract was a result of the inhibition of leukocyte migration and nitric oxide pathway and partially by inhibition of mediators such as prostaglandins and leukotrienes. Conclusion: Findings from the study provide the evidence for the popular use of stem bark extract of K. attenuata as a potential anti-inflammatory agent.


Author(s):  
NAGENDAR SHETTY ◽  
V. HARIKA ◽  
SUMITRA LOKRAS

Objective: This study was examined to in vitro antioxidant activity and Total Phenol and Flavonoids content analysis of methanolic root extract of Eleutherococcus senticosus (Siberian ginseng). Methods: 1,1-dephenyl-2-picryl-hydrazyl free radical scavenging and FRAP assay propose that antioxidant activity of methanol root extract because of reducing capacity of the antioxidant against oxidative effects of reactive oxygen species. Results: Scavenging activity of Siberian ginseng root RC50 value was shown 713.42±11.55 µg/ml and reducing power 0.13±0.01 mmol/g was investigated. In addition, total phenol 12.6±1.13 mg GAE/g DW and total flavonoids 9.8±0.20 mg QE/g DW were recorded. Conclusion: Although all tests were performed in vitro assay, these results recommend that Siberian ginseng root may be a good source of antioxidant ingrediant.


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