scholarly journals Dual mode of action of Talaromyces purpureogenus CFRM02 pigment to ameliorate alcohol induced liver toxicity in rats

2021 ◽  
Author(s):  
Saritha Gopal Pandit ◽  
Krishna Prashanth Ramesh Mekala ◽  
Mohankumari H. Puttananjaiah ◽  
Muthukumar Serva Peddha ◽  
Mohan A Dhale
Keyword(s):  
Antioxidant Activity ◽  
Liver Regeneration ◽  
Alcoholic Hepatitis ◽  
Therapeutic Strategy ◽  
Liver Toxicity ◽  
Neutrophil Infiltration ◽  
Dual Mode ◽  
Radical Generation ◽  
Haematological Analysis ◽  
Dual Mechanism

Abstract Talaromyces purpureogenus CFRM02 pigment exhibited antioxidant activity by scavenging free radicals. The alcohol feeding lead to free radical generation causing pathophysiological processes of alcoholic liver disease (ALD) and alcoholic hepatitis. The T. purpureogenus CFRM02 pigment administered to rats ameliorated the ALD by scavenging ROS. The haematological analysis revealed the increased neutrophil circulation. The neutrophil infiltration was observed in the hepatocytes of the rats fed with pigment (600 mg/kg body weight). The increase in number of neutrophils help in the liver regeneration caused by alcoholic hepatitis. The dual mechanism of action of pigment, antioxidant and liver regeneration through neutrophil production is attributed to alleviate the ALD. These results suggested T. purpureogenus CFRM02 pigment represents a novel protective and therapeutic strategy against ALD.

Transcriptomic analysis reveals the miRNAs responsible for liver regeneration associated with mortality in alcoholic hepatitis

Hepatology ◽  
2021 ◽  
Author(s):  
Zhihong Yang ◽  
Ting Zhang ◽  
Praveen Kusumanchi ◽  
Qing Tang ◽  
Zhaoli Sun ◽  
...  
Keyword(s):  
Liver Regeneration ◽  
Alcoholic Hepatitis ◽  
Transcriptomic Analysis

scholarly journals The Lille model: A new tool for therapeutic strategy in patients with severe alcoholic hepatitis treated with steroids

Hepatology ◽  
2007 ◽  
Vol 45 (6) ◽  
pp. 1348-1354 ◽  
Author(s):  
Alexandre Louvet ◽  
Sylvie Naveau ◽  
Marcelle Abdelnour ◽  
Marie-José Ramond ◽  
Emmanuel Diaz ◽  
...  
Keyword(s):  
Alcoholic Hepatitis ◽  
Therapeutic Strategy ◽  
Severe Alcoholic Hepatitis

scholarly journals TLR2 and TLR9 contribute to alcohol-mediated liver injury through induction of CXCL1 and neutrophil infiltration

2015 ◽  
Vol 309 (1) ◽  
pp. G30-G41 ◽  
Author(s):  
Yoon Seok Roh ◽  
Bi Zhang ◽  
Rohit Loomba ◽  
Ekihiro Seki
Keyword(s):  
Liver Injury ◽  
Alcoholic Hepatitis ◽  
Early Stage ◽  
Neutrophil Infiltration ◽  
Wild Type ◽  
Ethanol Feeding ◽  
Binge Ethanol ◽  
Deficient Mice ◽  
Cxcl1 Expression

Although previous studies reported the involvement of the TLR4-TRIF pathway in alcohol-induced liver injury, the role of TLR2 and TLR9 signaling in alcohol-mediated neutrophil infiltration and liver injury has not been elucidated. Since alcohol binge drinking is recognized to induce more severe form of alcohol liver disease, we used a chronic-binge ethanol-feeding model as a mouse model for early stage of alcoholic hepatitis. Whereas a chronic-binge ethanol feeding induced alcohol-mediated liver injury in wild-type mice, TLR2- and TLR9-deficient mice showed reduced liver injury. Induction of neutrophil-recruiting chemokines, including Cxcl1, Cxcl2, and Cxcl5, and hepatic neutrophil infiltration were increased in wild-type mice, but not in TLR2- and TLR9-deficient mice. In vivo depletion of Kupffer cells (KCs) by liposomal clodronate reduced liver injury and the expression of Il1b, but not Cxcl1, Cxcl2, and Cxcl5, suggesting that KCs are partly associated with liver injury, but not neutrophil recruitment, in a chronic-binge ethanol-feeding model. Notably, hepatocytes and hepatic stellate cells (HSCs) produce high amounts of CXCL1 in ethanol-treated mice. The treatment with TLR2 and TLR9 ligands synergistically upregulated CXCL1 expression in hepatocytes. Moreover, the inhibitors for CXCR2, a receptor for CXCL1, and MyD88 suppressed neutrophil infiltration and liver injury induced by chronic-binge ethanol treatment. Consistent with the above findings, hepatic CXCL1 expression was highly upregulated in patients with alcoholic hepatitis. In a chronic-binge ethanol-feeding model, the TLR2 and TLR9-dependent MyD88-dependent pathway mediates CXCL1 production in hepatocytes and HSCs; the CXCL1 then promotes neutrophil infiltration into the liver via CXCR2, resulting in the development of alcohol-mediated liver injury.

The EGFR Liver Regeneration Pathway is Downregulated in Alcoholic Hepatitis

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Josiah Hardesty ◽  
Jon Jacobs ◽  
Jeff Warner ◽  
Dennis Warner ◽  
Ying Song ◽  
...  
Keyword(s):  
Liver Regeneration ◽  
Alcoholic Hepatitis ◽  
Regeneration Pathway

scholarly journals PHYTOCHEMICAL ANALYSIS, ANTIOXIDANT AND HEPATOPROTECTIVE ACTIVITY OF ACTINIOPTERIS RADIATA

2020 ◽  
pp. 69-74
Author(s):  
KANDUKURI GOURI SANKAR ◽  
BENDI SRI VENKATESWARLU
Keyword(s):  
Antioxidant Activity ◽  
Alkaline Phosphatase ◽  
Free Radical ◽  
Medicinal Plants ◽  
Total Bilirubin ◽  
Liver Toxicity ◽  
Hepatoprotective Activity ◽  
Phytochemical Analysis ◽  
Alcoholic Extract ◽  
Phytochemical Constituents

Objective: The medicinal plants have been using to treat ailments since ancient times. The recent advances in science and technology impel humans to evaluate medicinal plants therapeutic efficiency and isolation of bioactive compounds in pure forms before their use in development of new drugs and their derivatives. But even now, abundant medicinal plants unevaluated scientifically. The current study was aimed to explore phytochemical constituents, antioxidant and hepatoprotective activities of Actiniopteris radiata root parts. Methods: Standard procedures have been used to perform phytochemical analysis. Antioxidant activity was carried using In vitro methods on superoxide, hydroxyl, and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals. Hepatoprotective activity was studied by paracetamol-induced liver toxicity on WISTAR albino rats. The parameters assessed were Aspartate aminotransferase (SGOT/AST), Alanine aminotransferase (SGPT/ALT), alkaline phosphatase (ALP) and total bilirubin levels. Results: The tested extracts (hexane, ethyl acetate, and hydro-alcoholic) possess biologically active compounds such as sterols, terpenoids, glycosides, phenolics, alkaloids, flavonoids. The hydro-alcoholic extract has more phenolic contents (24.28±0.3) and flavonoid contents (22.68±0.6). The extracts showed dose dependent activity on tested free radicals and extracts showed more percentage inhibition at 320µg. The hydro-alcoholic extract showed more percentage inhibition i.e. 71.00±2.08 on DPPH free radical, 79.67±1.20 on hydroxyl free radical and 80.33±1.20 on superoxide free radical. As antioxidant activity of hexane and ethyl acetate extracts was less and they also showed less percentage protection on liver toxicity, hydro-alcoholic extract showed more percentage protection on biomedical enzyme levels of liver toxicity at high concentration i.e., 400 mg/kg b.w. The percentage protection on the enhancement of AST (SGOT), ALT (SGPT), ALP, and total bilirubin levels were 82.24%, 82.14%, 84.18%, and 82.85% are significant (P<0.01) as Liv52 shown percentage protection on the enhancement of Aspartate aminotransferase (SGOT), alanine aminotransferase (SGPT), Alkaline phosphatase (ALP) and total bilirubin levels were 93.58%, 92.83%, 94.67% and 93.57%. Conclusion: The current study was aimed to explore phytochemical constituents, antioxidant and hepatoprotective activities of Actiniopteris radiata root parts extracts. The outcome of the current research results provides scientific evidence of the traditional usage of Actiniopteris radiata.

Underlying antioxidant activity in the anticonvulsant potency of polyherbal tonic

2020 ◽  
Vol 7 (2) ◽  
pp. 25-29
Author(s):  
Bhavani J ◽  
Ravichandran S
Keyword(s):  
Antioxidant Activity ◽  
Low Dose ◽  
Extended Period ◽  
Antiepileptic Activity ◽  
Antioxidant Potency ◽  
Radical Generation ◽  
Protective Enzymes ◽  
The Brain ◽  
Human Nervous System

Convulsions are the commonest of the symptoms that prevail in the most of the diseases that affect the human nervous system. Almost 1% of the world’s population now suffer from epilepsy as a long-term disease and had been on medication for an extended period of time. There are many investigations and theories advocating that the elevated enzyme activity in the brain and their inability to protect the brain from the free radical generation and normalization will lead to convulsions and seizures. There were investigations that the free radicals were counter acted by the protective enzymes in the brain there by preventing the convulsions. So with this assertion, the enzyme levels of the brain are an indicative for the estimation of the antioxidant extent and there by convulsant activity in the brain. In the current work, the prepared polyherbal tonic was investigated for the antioxidant activity by giving special emphasis to the antiepileptic activity of the herbs used in the tonic. The results proved that the prepared tonic was effective in normalizing the altered levels of enzymes and thereby proving that the antioxidant potency of the herbs helped in displayed the antiepileptic activity too. the tonic was effective at higher dose compared to low dose which shows a dose based antiepileptic activity.

Discovery of New N-hydrazinecarbothioamide Indazole Hybrids: As Potential Radical (ABTS and DPPH) Scavengers

2020 ◽  
Vol 17 (9) ◽  
pp. 1177-1185
Author(s):  
Rafaila Rafique ◽  
Arshia ◽  
Kanwal ◽  
Khalid Mohammed Khan ◽  
Sridevi Chigurupati ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Free Radicals ◽  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavengers ◽  
Radical Scavengers ◽  
Synthetic Compounds ◽  
Free Radical Generation ◽  
Radical Generation

Background: Free radicals are the main cause of numerous diseases. Their overproduction needs to be controlled in order to combat several ailments. The current study deals with the discovery of new free radical scavengers. Methods: Substituted N-hydrazinecarbothioamide indazoles 1-18 were evaluated for DPPH and ABTS radical scavenging activities. Results: All synthetic compounds possess good radical DPPH and ABTS scavenging potential in the ranges of IC50 = 2.11 ± 0.17 - 5.3 ± 0.11 μM and IC50 = 2.31 ± 0.06 - 5.5 ± 0.07 μM, respectively, as compared to standard ascorbic acid having IC50 = 2.02 ± 0.11 μM for DPPH and IC50 = 2.1 ± 0.07 μM for ABTS. Conclusion: These compounds could serve as leads for antioxidant activity that have the ability to control free radical generation and ward off free radical-induced disorders.

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