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      International Journal of Nanomedicine (submit here)

      This international, peer-reviewed Open Access journal by Dove Medical Press focuses on the application of nanotechnology in diagnostics, therapeutics, and drug delivery systems throughout the biomedical field. Sign up for email alerts here.

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      Hepatoprotective effect of silver nanoparticles synthesized using aqueous leaf extract of Rhizophora apiculata

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          Abstract

          Background: Liver plays a vital role in the elimination of xenobiotics that can induce hepatotoxicity in living organisms.Silver nanoparticles have evolved recently as an alternative in various industries and are used for their biomedical applications. Rhizophora apiculata is a least studied mangrove-based plant that has been used in the traditional medicine of Southeast Asia for its healing properties. It is a well-known fact that the generation of free radicals has been associated with oxidative stress. 

          Methods: Hence, in this study we used carbon tetrachloride as a hepatotoxin to induce liver damage. The protective effects of silver nanoparticles synthesized using  Rhizophora apiculata on hepatotoxin-induced liver damage in experimental mice were assessed. 

          Results: The results of the assessment indicate that silver nanoparticles were effective in protecting the liver from damages induced by carbon tetrachloride. 

          Conclusion: Among existing literature, this is the first ever approach for hepatoprotective effect of nanoparticles derived using plant extract from mangrove ecosystem.

          Most cited references48

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          Antioxidants Maintain Cellular Redox Homeostasis by Elimination of Reactive Oxygen Species.

          Reactive oxygen species (ROS) are produced by living cells as normal cellular metabolic byproduct. Under excessive stress conditions, cells will produce numerous ROS, and the living organisms eventually evolve series of response mechanisms to adapt to the ROS exposure as well as utilize it as the signaling molecules. ROS molecules would trigger oxidative stress in a feedback mechanism involving many biological processes, such as apoptosis, necrosis and autophagy. Growing evidences have suggested that ROS play a critical role as the signaling molecules throughout the entire cell death pathway. Overwhelming production of ROS can destroy organelles structure and bio-molecules, which lead to inflammatory response that is a known underpinning mechanism for the development of diabetes and cancer. Cytochrome P450 enzymes (CYP) are regarded as the markers of oxidative stress, can transform toxic metabolites into ROS, such as superoxide anion, hydrogen peroxide and hydroxyl radical which might cause injury of cells. Accordingly, cells have evolved a balanced system to neutralize the extra ROS, namely antioxidant systems that consist of enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidases (GPxs), thioredoxin (Trx) as well as the non-enzymatic antioxidants which collectively reduce oxidative state. Herein, we review the recent novel findings of cellular processes induced by ROS, and summarize the roles of cellular endogenous antioxidant systems as well as natural anti-oxidative compounds in several human diseases caused by ROS in order to illustrate the vital role of antioxidants in prevention against oxidative stress.
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            The Role of the Reactive Oxygen Species and Oxidative Stress in the Pathomechanism of the Age-Related Ocular Diseases and Other Pathologies of the Anterior and Posterior Eye Segments in Adults

            The reactive oxygen species (ROS) form under normal physiological conditions and may have both beneficial and harmful role. We search the literature and current knowledge in the aspect of ROS participation in the pathogenesis of anterior and posterior eye segment diseases in adults. ROS take part in the pathogenesis of keratoconus, Fuchs endothelial corneal dystrophy, and granular corneal dystrophy type 2, stimulating apoptosis of corneal cells. ROS play a role in the pathogenesis of glaucoma stimulating apoptotic and inflammatory pathways on the level of the trabecular meshwork and promoting retinal ganglion cells apoptosis and glial dysfunction in the posterior eye segment. ROS play a role in the pathogenesis of Leber's hereditary optic neuropathy and traumatic optic neuropathy. ROS induce apoptosis of human lens epithelial cells. ROS promote apoptosis of vascular and neuronal cells and stimulate inflammation and pathological angiogenesis in the course of diabetic retinopathy. ROS are associated with the pathophysiological parainflammation and autophagy process in the course of the age-related macular degeneration.
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              Green synthesis of silver nanoparticles using Capsicum annuum L. extract

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                Author and article information

                Journal
                Int J Nanomedicine
                Int J Nanomedicine
                IJN
                intjnano
                International Journal of Nanomedicine
                Dove
                1176-9114
                1178-2013
                20 May 2019
                2019
                : 14
                : 3517-3524
                Affiliations
                [1 ]The Second Clinical Medical College, Nanjing University of Chinese Medicine , Nanjing, Jiangsu, 210023, People’s Republic of China
                [2 ]Department of Environmental Biotechnology, Bharathidasan University , Tiruchirappalli, 620024, Tamil Nadu, India
                [3 ]Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine , Nanjing 210028, Jiangsu, People’s Republic of China
                [4 ]Department of Animal Health and Management, Alagappa University , Karaikudi 630 003, Tamil Nadu, India
                Author notes
                Correspondence: Achiraman ShanmugamDepartment of Environmental Biotechnology, Bharathidasan University , Tiruchirappalli620024, Tamil Nadu, IndiaEmail achiramans@ 123456gmail.com
                Article
                198895
                10.2147/IJN.S198895
                6535432
                31190808
                6cc08949-1552-468b-87a3-08851d24ee27
                © 2019 Zhang et al.

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                History
                : 19 December 2018
                : 08 March 2019
                Page count
                Figures: 4, Tables: 2, References: 62, Pages: 8
                Categories
                Original Research

                Molecular medicine
                mangroves,rhizophora apiculata,silver nanoparticles,carbon tetrachloride,hepatotoxicity

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