scholarly journals Antioxidant and Prophylactic Effects ofDelonix elataL., Stem Bark Extracts, and Flavonoid Isolated Quercetin against Carbon Tetrachloride-Induced Hepatotoxicity in Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Pradeepa Krishnappa ◽  
Krishna Venkatarangaiah ◽  
Venkatesh ◽  
Santosh Kumar Shivamogga Rajanna ◽  
Rajesh Kashi Prakash Gupta

Delonix elataL. (Ceasalpinaceae), is widely used by the traditional medical practitioners of Karnataka, India, to cure jaundice, and bronchial and rheumatic problems. The objective of this study was to screen thein vitroantioxidant and hepatoprotective activity of the stem bark extracts against CCl4-induced liver damage in rats. Among different stem bark extracts tested, the ethanol extract (DSE) has shown significantin vitroantioxidant property in radicals scavenging, metal chelating, and lipid peroxidation inhibition assays. HPLC analysis of the DSE revealed the presence of known antioxidant molecules, namely, gallic acid, ellagic acid, coumaric acid, quercetin, and rutin. Bioassay-guided fractionation of DSE has resulted in the isolation and characterization of quercetin. DSE and quercetin have shown significant prophylactic effects by restoring the liver function markers (AST, ALT, ALP, serum bilirubin, and total protein) and antioxidant enzymes (SOD, CAT, GPx, and GST). These results were proved to be hepatoprotective at par with silymarin and well supported by the histological observations of liver sections with distinct hepatic cells, and mild degree of fatty change and necrosis. The results indicated that the DSE and quercetin were significant for prophylactic activity against CCl4-induced liver damage in rats. This activity could be attributed to the antioxidant constituents in the DSE and hence justified the ethnomedicinal claims.

2020 ◽  
Vol 10 (03) ◽  
pp. 109-115
Author(s):  
Shreya Udaya ◽  
Nishith Babu ◽  
Dechamma Pandyanda Nanjappa ◽  
Krithika Kalladka ◽  
Gunimala Chakraborty ◽  
...  

Abstract Objective This study was aimed at evaluating the toxicity and the antioxidant property of Cassia fistula stem bark extracts in zebrafish. Materials and Methods Crude aqueous and ethanol extracts of C. fistula stem bark were obtained following a standard solvent-based extraction method. The toxicity of these extracts on zebrafish embryonic development was determined and the LC50 values were calculated. Finally, the antioxidant property of C. fistula stem bark extracts was determined in arsenic-induced oxidative stress models of zebrafish. Results The aqueous extract of C. fistula stem bark showed a slightly larger LC50 value (213.6 ppm) compared with the ethanol extract (LC50 = 63.5 ppm), suggesting a lower toxicity of the aqueous extract. A significant reduction of reactive oxygen species (ROS) signal was observed in arsenic-exposed embryos treated with the aqueous extract, but not the ethanol extract, indicating that the antioxidant activity is present only in the aqueous extract of C. fistula stem bark. Conclusion Identification of antioxidants from natural sources is desirable because of increasing safety concerns associated with synthetic antioxidants. This study demonstrated that aqueous extract from C. fistula stem bark possesses antioxidant properties, which can be further characterized for mechanism of action and potential applications.


Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2529
Author(s):  
Haeyeop Kim ◽  
Woo Seok Yang ◽  
Khin Myo Htwe ◽  
Mi-Nam Lee ◽  
Young-Dong Kim ◽  
...  

Dipterocarpus tuberculatus Roxb. has been used traditionally as a remedy for many diseases, especially inflammation. Therefore, we analyzed and explored the mechanism of the anti-inflammatory effect of a Dipterocarpus tuberculatus Roxb. ethanol extract (Dt-EE). Dt-EE clearly and dose-dependently inhibited the expression of pro-inflammatory cytokines such as IL-6, TNF-α, and IL-1β in lipopolysaccharide (LPS)-treated RAW264.7 cells. Also, Dt-EE suppressed the activation of the MyD88/TRIF-mediated AP-1 pathway and the AP-1 pathway related proteins JNK2, MKK4/7, and TAK1, which occurred as a result of inhibiting the kinase activity of IRAK1 and IRAK4, the most upstream factors of the AP-1 pathway. Finally, Dt-EE displayed hepatoprotective activity in a mouse model of hepatitis induced with LPS/D-galactosamine (D-GalN) through decreasing the serum levels of alanine aminotransferase and suppressing the activation of JNK and IRAK1. Therefore, our results strongly suggest that Dt-EE could be a candidate anti-inflammatory herbal medicine with IRAK1/AP-1 inhibitory and hepatoprotective properties.


2019 ◽  
Vol 22 (1) ◽  
pp. 18-26
Author(s):  
Sayema Khanum ◽  
Md Shahid Sarwar ◽  
Mohammad Safiqul Islam

Wedelia chinensis is a widely used anti-inflammatory and hepatoprotective medicinal plant in Bangladesh. In this study, analgesic, neurological, antioxidant and cytotoxic activities of the ethanolic extract of leaf and stem bark of W. chinensis were investigated. Oral administration of the ethanolic extract of W. chinensis (200- and 300-mg/kg body weight) was investigated on animal model for neurological activity using open field test and hole cross test. Acetic acid induced writhing method was used to assess the analgesic activity. DPPH (1,1-diphenyl, 2-picryl hydrazyl) radical scavenging assay was used for determining the antioxidant activity, while brine shrimp lethality bioassay was used for investigating cytotoxicity. The ethanol extract of the plant produced significant reduction (P<0.05) of locomotion in both doses (200- and 300-mg/kg body weight) indicating pronounced neurological activity. Oral administration of alcoholic leaves and stem extracts significantly (p < 0.05) inhibited writhing response in mice. The percentage of scavenging of DPPH free radical was found to be concentration dependent with IC50 value of 44.10 ± 0.65 and 38.96 ± 0.50 μg/ml for leaves and stem extracts, respectively. Our findings indicate that W. chinensis may be a source of natural antioxidant with potent analgesic, neurological and cytotoxic activities. Bangladesh Pharmaceutical Journal 22(1): 18-26, 2019


2020 ◽  
Vol 25 ◽  
pp. 2515690X2093798 ◽  
Author(s):  
Gervason Moriasi ◽  
Anthony Ireri ◽  
Mathew Piero Ngugi

Oxidative stress has been recognized as a key driver of many ailments affecting humankind. Free radicals attack biologically important biomolecules, impairing their functioning, thereby initiating and exacerbating diseases. As a comeback, antioxidant therapies have been proposed as novel approaches to ameliorating oxidative stress–associated diseases including chronic ones. Antioxidants are thought to employ multifaceted and multitargeted mechanisms that either restore oxidative homeostasis or prevent free radical buildup in the body, which overwhelm the endogenous defenses. Plants have been used for many ages across time to manage human diseases, and have a host of antioxidant phytocompounds. Piliostigma thonningii is traditionally used for the management of inflammation, malaria fever, rheumatism, and insanity, among other diseases caused by a disturbed redox state in the body. In this study, in vitro antioxidant activities of the methanolic and aqueous stem bark extracts of P. thonningii were evaluated using the in vitro antilipid peroxidation, the 1,1-diphenyl-2-picryhydrazyl (DPPH) free radical scavenging, and the ferric reducing antioxidant power assay methods. The obtained results revealed remarkable antioxidant activities of the studied plant extracts as evidenced by the low IC50 and EC50 values. These antioxidant activities could be due to the presence of antioxidant phytochemicals like flavonoids, carotenoids, tannins, and phenols, among others. Therefore, the therapeutic potency of this plant could be due to its antioxidant properties. This study recommends in vivo antioxidant efficacy testing of the studied plant extracts, as well as isolation and characterization of bioactive antioxidant compounds that are potent against oxidative stress.


Author(s):  
VEENA SHARMA ◽  
PREETI SHARMA

Objective: The present experimental investigation was planned to unravel and analyze the therapeutic potential of hydro-ethanol extract prepared from the stem bark of Prosopis cineraria against LPS-induced toxicity under in vitro conditions. Methods: Liver tissue samples from healthy Swiss albino male mice (Mus musculus) were used for the study. Liver homogenate (0.9 ml) was treated with 0.05 mg/ml of LPS along with 0.01 to 0.05 mg/ml of hydro-ethanol plant extract and allowed to incubate at 37˚C. The reactions were terminated at different time points at 0 min, 30 min, 1 h, 2 h, 4 h, 8 h and 24 h and alterations in oxidative stress (LPO, CAT, SOD, GSH, GST, and GPx) and biochemical parameters of hepatic toxicity (AST and ALT, ACP and ALP) were studied. Results: The results demonstrated that the obliterations in the levels of oxidative and biochemical parameters due to LPS induced toxicity were restored by the treatment with hydro-ethanol extract of Prosopis cineraria under in vitro conditions. The altered levels were biochemical parameters were observed at 0.05 mg/ml LPS concentration after 2 h; but administration of hydro-ethanol plant extract at concentration 0.04 mg/ml effectively reduced its level when compared to LPS treated samples under in vitro conditions Conclusion: The present research work unravelled the alleviating potential of a hydro-ethanol extract of Prosopis cineraria against LPS-induced toxicity by combating oxidative stress under in vitro environment.


2012 ◽  
Vol 2012 ◽  
pp. 1-13 ◽  
Author(s):  
Liping Qu ◽  
Hailiang Xin ◽  
Guoyin Zheng ◽  
Yonghua Su ◽  
Changquan Ling

The protective activity of the total saponins fromActinidia valvataDunn root (TSAV) was studied against carbon-tetrachloride- (CCl4-) induced acute liver injury in mice. Mice were orally administered TSAV (50, 100, and 200 mg/kg) for five days and then given CCl4. TSAV pretreatment significantly prevented the CCl4-induced hepatic damage as indicated by the serum marker enzymes (AST, ALT, and ALP). Parallel to these changes, TSAV also prevented CCl4-induced oxidative stress by inhibiting lipid peroxidation (MDA) and restoring the levels of antioxidant enzymes (SOD, CAT, GR, and GPX), GSH and GSSG. In addition, TSAV attenuated the serum TNF-αand IL-6 levels and inhibited the serum iNOS and NO levels. Liver histopathology indicated that TSAV alleviated CCl4-induced inflammatory infiltration and focal necrosis. TSAV (200 mg/kg) also significantly decreased Bak, Bax mRNA and Fas, FasL, p53, and NF-κB p65 protein expressions and increased Bcl-2 mRNA and protein expressions. Meanwhile, TSAV significantly downregulated caspase-3 and caspase-8 activities and prevented CCl4-induced hepatic cell apoptosis. In addition, TSAV exhibited antioxidant activity through scavenging hydroxyl and DPPH free radicalsin vitro. These results indicated that TSAV could protect mice against CCl4-induced acute liver damage possibly through antioxidant, anti-inflammatory activities and regulating apoptotic-related genes.


Author(s):  
Arshad Ayub Ahmed ◽  
Bipul Nath

Objective: The purpose of this study was to develop anti-ageing poly-herbal face cream by mixing the ethanol extract of C. sativum and rose hip oil in order to produce multipurpose effects on the skin such as fairness, softening and antiseptic effects.Methods: Ageing of the skin is the result of continuous "wear and tear" processes. Chronological skin aging is a universal and inevitable process, while in contrast, photoaging results from the UV rays of sunlight, and the damage becomes apparent in sun-exposed skin. Cream is defined as semisolid emulsions which may be oil-in-water (o/w) or water-in-oil (w/o) type and these semisolid emulsions are meant for external applications. In this study creams (o/w type) were formulated based on the anti-oxidant potential of herbal extracts and its evaluation. Coriandrum sativum plant extracted by using soxhlet method with water as solvent. The creams were formulated with coriander oil, rose hip oil with different concentrations namely F1 to F6.Results: The creams were to be stable during stability studies accordingly ICH guideline for 2 mo. Coriandrum sativum extract showed significant anti-oxidant activity with an IC50 value is 34.25 μg/ml, while for ascorbic acid the IC50 value was 46.68μg/ml.Conclusion: It can be concluded that herbal creams without side effects having antioxidant property can be used as provision of a barrier to protect the skin and avoid aging of the skin.


Author(s):  
Varkung Valte ◽  
M. Premchand Singh ◽  
Indira Raleng ◽  
Losica R. K.

Background: Traditionally, the bark of Pavetta Indica Linn., in decoction or pulverized, is administered, especially to children, to correct visceral obstructions. The decocted leaves are used externally to alleviate the pains caused by hemorrhoids. The root, pulverized and mixed with the ginger and rice-water, is given in dropsy. A local fomentation with the leaves is useful in relieving the pain of piles. Paracetamol (PCM) toxicity generates free radicals and raised serum enzyme levels-SGPT, SGOT, Alkaline Phosphatase and S. Albumin. It causes necrosis, congested vessels, multifocal area of fatty changes nuclear disintegration, sinusoidal dilation, kuffer cell hyperplasia. The reverse is considered as the index of hepatoprotective activity. The present study is being taken up to screen hepatoprotective action of P. Indica Linn.Methods: The acute liver damage in albino rats was induced by per oral administration of a single dose of 2000mg/kg b.w. PCM suspension in 0.5% Carboxy methyl cellulose (CMC) and chronic liver damage by giving the same dose of PCM on the 7th day. The hepatoprotective activity was monitored biochemically by estimating S. transaminase, S. bilirubin and S. Protein on the 8th day of experiment.Results: Ethanol extract of P. Indica inhibited PCM induced liver toxicity in albino rats at 100mg/kg and 200mg/kg b.w as assessed by the biochemical values.Conclusions: Ethanol extract of “P. Indica” exhibited significant hepatoprotective activity.


2020 ◽  
Vol 11 (4) ◽  
pp. 6411-6416
Author(s):  
Raziuddin Khan ◽  
Madan Kaushik ◽  
Zeashan Hussain

The modern medicine gets up a massive hike in the treatment of various ailments but scarcely any drugs having to stimulate liver activity, offering tutelage to the liver from any harm or promote the palingenesis of hepatic cells. However, a variety of herbal drugs applied in the conventional system of medicine for liver efficiency. Therefore, rhizome of Curcuma amada (Family: Zingiberaceae) are selected to allocate the hepatoprotective activity in scientifically approbate experimental models. This study is an effort to explore the 50% ethanolic extract of rhizome of Curcuma amada (CAE) in a different experimental model for hepatoprotective activities and in vitro antioxidant. 50% ethanolic extract of Curcuma amada (CAE) (100 and 200mg/kg) hepatoprotective efficiency was examined against paracetamol (1000 mg/kg) induced hepatotoxicity, elevated hepatic enzymes alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP), total bilirubin direct bilirubin content in the serum. Moreover, CAE induced antioxidant protection against hepatotoxic disservice of paracetamol was estimated by evaluating several antioxidative biomarkers such as reduced glutathione (GSH), superoxide dismutase (SOD), and catalase (CAT) in the blood serum by using spectrophotometric analysis. It could be concluded that the rhizome of C. amada possesses an intense antioxidant property. Its active principle wipeout free radicals and strive a tutelary impact against oxidative harm induced to cellular macromolecules. 50% ethanolic extract of C. amada (CAE) is tenable to amplify and maintain the working of hepatic enzymes implicated in detention of ROS.


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