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  1. Article ; Online: Phenolic compounds as α-glucosidase inhibitors: a docking and molecular dynamics simulation study.

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Mahmud, Shafi

    Journal of biomolecular structure & dynamics

    2022  Volume 41, Issue 9, Page(s) 3862–3871

    Abstract: Phenolic compounds possess significant biological activity. Several pieces of research emphasize the medicinal importance of phenolic compounds, including diabetes. The present study investigated the α-glucosidase inhibitory activity of phenolic ... ...

    Abstract Phenolic compounds possess significant biological activity. Several pieces of research emphasize the medicinal importance of phenolic compounds, including diabetes. The present study investigated the α-glucosidase inhibitory activity of phenolic compounds reported from several plants. The phenolic compounds reported in different literature were collected. Molecular docking was carried out using AutoDock Vina. Various physicochemical properties such as size, LogP, molecular complexity, hydrogen bonding properties of phenolic compounds were correlated with the binding affinities. Furthermore, MD simulation was carried out to study the structural stability of the docking complexes. A total of 155 phenolic compounds were reported from different plants. Amentoflavone showed the strongest binding affinity with α-glucosidase, much more potent than reference acarbose. The binding energy showed a good correlation with the molecular complexity, hydrogen bond donor and acceptor property and heavy atom counts of the compounds. The polarity of the surface area also showed a positive correlation with the binding affinity of the compounds. The best docking phenolic compound, amentoflavone, showed stable binding affinity and conformation during the simulation period compared to apoprotein and acarbose-docking complex. The top ten phenolic compounds, including amentoflavone, showed considerable drug-likeness properties with fewer toxicity effects. The study suggests that the amentoflavone could be a potential therapeutic drug as an α-glucosidase inhibitor and help control postprandial hyperglycemia.Communicated by Ramaswamy H. Sarma.
    MeSH term(s) Glycoside Hydrolase Inhibitors/pharmacology ; Glycoside Hydrolase Inhibitors/chemistry ; Acarbose/pharmacology ; Molecular Docking Simulation ; Molecular Dynamics Simulation ; alpha-Glucosidases/chemistry ; Phenols/pharmacology
    Chemical Substances Glycoside Hydrolase Inhibitors ; Acarbose (T58MSI464G) ; alpha-Glucosidases (EC 3.2.1.20) ; Phenols
    Language English
    Publishing date 2022-04-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 49157-3
    ISSN 1538-0254 ; 0739-1102
    ISSN (online) 1538-0254
    ISSN 0739-1102
    DOI 10.1080/07391102.2022.2058092
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: In vitro study of the antioxidant, antiproliferative, and anthelmintic properties of some medicinal plants of Kokrajhar district, India.

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Verma, Akalesh Kumar

    Journal of parasitic diseases : official organ of the Indian Society for Parasitology

    2021  Volume 45, Issue 4, Page(s) 1123–1134

    Abstract: ... Alstonia ... ...

    Abstract Alstonia scholaris
    Language English
    Publishing date 2021-06-15
    Publishing country India
    Document type Journal Article
    ZDB-ID 2548456-4
    ISSN 0975-0703 ; 0971-7196
    ISSN (online) 0975-0703
    ISSN 0971-7196
    DOI 10.1007/s12639-021-01410-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Persicaria strigosa (R.Br.) Nakai: a natural anthelmintic?

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Boro, Harmonjit

    Parasitology research

    2021  Volume 120, Issue 9, Page(s) 3215–3227

    Abstract: Persicaria strigosa (R.Br.) Nakai. (Family Polygonaceae) is an important plant of Assam, having several ethnobotanical uses. Tribal communities consume leaf extracts to cure helminth infection. The present study investigated the antioxidant, ... ...

    Abstract Persicaria strigosa (R.Br.) Nakai. (Family Polygonaceae) is an important plant of Assam, having several ethnobotanical uses. Tribal communities consume leaf extracts to cure helminth infection. The present study investigated the antioxidant, phytochemicals, and anthelmintic activity of P. strigosa. Total phenolic and flavonoid contents were estimated following standard methods. Antioxidant properties were analyzed by TAC, FRAP, DPPH, ABTS, and TBARS assays. Anthelmintic activity of plant was investigated in Paramphistomum sp. treated with 5 mg/mL, and paralysis and death times were recorded. The most potent solvent extract was performed GC-MS analysis to identify the phytocompounds. Plant extract-treated parasites were further analyzed for biochemical changes. Additionally, molecular docking was performed to study the binding affinities between phytocompounds and enzymes. P. strigosa showed rich phenolics, flavonoids, and antioxidant properties. Ethyl acetate and methanolic extracts showed more powerful antioxidant properties than other extracts. In vitro anthelmintic study found ethyl acetate and diethyl ether the most active extracts. Treated parasites showed a significant decrease in enzyme activity. The highest inhibition was observed in AchE, followed by MDH, LDH, ALP, and ACP. GC-MS study identified 12 probable compounds from the ethyl acetate extract of P. strigosa. Molecular docking showed the strongest binding affinity between the phytocompounds and AchE enzyme (- 7.6 kcal/mol). Overall, compounds C6, C7, and C12 showed better binding affinity compared to other compounds. The in vitro helminth bioassays and biochemical analysis suggest Persicaria strigosa a possible anthelmintic agent. However, isolation and characterization of bioactive compound(s) may promise new drug candidates for helminth infections.
    MeSH term(s) Animals ; Anthelmintics/pharmacology ; Antioxidants/pharmacology ; Helminths/drug effects ; Molecular Docking Simulation ; Phytochemicals/pharmacology ; Plant Extracts/pharmacology ; Polygonaceae/chemistry
    Chemical Substances Anthelmintics ; Antioxidants ; Phytochemicals ; Plant Extracts
    Language English
    Publishing date 2021-08-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 284966-5
    ISSN 1432-1955 ; 0932-0113 ; 0044-3255
    ISSN (online) 1432-1955
    ISSN 0932-0113 ; 0044-3255
    DOI 10.1007/s00436-021-07249-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: In vitro study of the antioxidant, antiproliferative, and anthelmintic properties of some medicinal plants of Kokrajhar district, India

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Verma, Akalesh Kumar

    Journal of parasitic diseases. 2021 Dec., v. 45, no. 4

    2021  

    Abstract: Alstonia scholaris, Cardiospermum halicacabum, Hydrocotyle sibthorpioides, and Hypericum japonicum are important folk medicinal plants used by tribal communities of Bodoland region of Assam to treat helminth infections. Because of their ethnomedicinal ... ...

    Abstract Alstonia scholaris, Cardiospermum halicacabum, Hydrocotyle sibthorpioides, and Hypericum japonicum are important folk medicinal plants used by tribal communities of Bodoland region of Assam to treat helminth infections. Because of their ethnomedicinal values, the present study was designed to investigate the antioxidant, antiproliferative, and anthelmintic activities of the plants. The antioxidant activity was measured by total antioxidant capacity, total phenolics (TPC), total flavonoid (TFC), FRAP, DPPH, ABTS, and TBARS assay. Antiproliferative and apoptosis-inducing activities of plants were conducted in Dalton’s lymphoma (DL) cells. Cells were treated for 24 h with different doses (25–200 mg/mL) of plant extracts. Anthelmintic study was conducted by treating the Paramphistomum sp. at different doses of plant extracts. Phytochemical and antioxidant studies showed rich TPC, TFC, and free radical scavenging activity in H. japonicum and H. sibthorpioides. Both the antiproliferative and anthelmintic bioassays showed a dose-dependent efficacy in all plants. H. japonicum showed the strongest anthelmintic activity (LC₅₀ 0.21 mg/mL) followed by H. sibthorpioides (5.36 mg/mL), C. halicacabum (13.40 mg/mL), and A. scholaris (18.40 mg/mL). Evidently, H. sibthorpioides showed the strongest antiproliferative and apoptosis-inducing activities among all the plants. The study observed a positive correlation between the antioxidant properties and antiproliferative and anthelmintic activities of the plants. We, therefore, conclude that the phytocompounds present in the crude extracts along with antioxidant molecules may have combined effects contributing to the antiproliferative and anthelmintic activities of the plants.
    Keywords Alstonia scholaris ; Cardiospermum halicacabum ; Hydrocotyle ; Hypericum ; Paramphistomum ; anthelmintics ; antioxidant activity ; dose response ; flavonoids ; free radicals ; helminths ; lymphoma ; India
    Language English
    Dates of publication 2021-12
    Size p. 1123-1134.
    Publishing place Springer India
    Document type Article
    ZDB-ID 2548456-4
    ISSN 0975-0703 ; 0971-7196
    ISSN (online) 0975-0703
    ISSN 0971-7196
    DOI 10.1007/s12639-021-01410-0
    Database NAL-Catalogue (AGRICOLA)

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  5. Article: Persicaria strigosa (R.Br.) Nakai: a natural anthelmintic?

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Boro, Harmonjit

    Parasitology research. 2021 Sept., v. 120, no. 9

    2021  

    Abstract: Persicaria strigosa (R.Br.) Nakai. (Family Polygonaceae) is an important plant of Assam, having several ethnobotanical uses. Tribal communities consume leaf extracts to cure helminth infection. The present study investigated the antioxidant, ... ...

    Abstract Persicaria strigosa (R.Br.) Nakai. (Family Polygonaceae) is an important plant of Assam, having several ethnobotanical uses. Tribal communities consume leaf extracts to cure helminth infection. The present study investigated the antioxidant, phytochemicals, and anthelmintic activity of P. strigosa. Total phenolic and flavonoid contents were estimated following standard methods. Antioxidant properties were analyzed by TAC, FRAP, DPPH, ABTS, and TBARS assays. Anthelmintic activity of plant was investigated in Paramphistomum sp. treated with 5 mg/mL, and paralysis and death times were recorded. The most potent solvent extract was performed GC–MS analysis to identify the phytocompounds. Plant extract-treated parasites were further analyzed for biochemical changes. Additionally, molecular docking was performed to study the binding affinities between phytocompounds and enzymes. P. strigosa showed rich phenolics, flavonoids, and antioxidant properties. Ethyl acetate and methanolic extracts showed more powerful antioxidant properties than other extracts. In vitro anthelmintic study found ethyl acetate and diethyl ether the most active extracts. Treated parasites showed a significant decrease in enzyme activity. The highest inhibition was observed in AchE, followed by MDH, LDH, ALP, and ACP. GC–MS study identified 12 probable compounds from the ethyl acetate extract of P. strigosa. Molecular docking showed the strongest binding affinity between the phytocompounds and AchE enzyme (− 7.6 kcal/mol). Overall, compounds C6, C7, and C12 showed better binding affinity compared to other compounds. The in vitro helminth bioassays and biochemical analysis suggest Persicaria strigosa a possible anthelmintic agent. However, isolation and characterization of bioactive compound(s) may promise new drug candidates for helminth infections.
    Keywords Paramphistomum ; Persicaria ; anthelmintics ; antioxidants ; bioactive compounds ; death ; enzyme activity ; ethnobotany ; ethyl acetate ; ethyl ether ; flavonoids ; helminthiasis ; helminths ; leaves ; paralysis ; parasitology ; research ; solvents ; India
    Language English
    Dates of publication 2021-09
    Size p. 3215-3227.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    ZDB-ID 284966-5
    ISSN 1432-1955 ; 0932-0113 ; 0044-3255
    ISSN (online) 1432-1955
    ISSN 0932-0113 ; 0044-3255
    DOI 10.1007/s00436-021-07249-x
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Survey and documentation of putative anthelmintic plants used in ethnomedicinal systems of tribal communities of Baksa District of Assam

    Swargiary, Ananta / Roy, Mritunjoy Kumar / Daimari, Manita

    Medicinal Plants

    2019  Volume 11, Issue 4, Page(s) 368

    Language English
    Document type Article
    ZDB-ID 2881592-0
    ISSN 0975-4261
    Database Current Contents Nutrition, Environment, Agriculture

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  7. Book ; Online: Simeprevir and Eltrombopag as Potential Inhibitors of SARS-CoV2 Proteases

    Swargiary, Ananta / Verma, AKALESH / Daimari, Manita / Roy, Mritunjoy Kumar

    A Molecular Docking and Virtual Screening Approach to Combat COVID-19

    2020  

    Abstract: The present study investigates the binding affinities of 61 FDA approved drugs against two key proteases of SARS-COV2, 3-chymotrypsin-like protease and papain-like protease. We also investigates the ADMET properties of the top 10 besting binding drugs to ...

    Abstract The present study investigates the binding affinities of 61 FDA approved drugs against two key proteases of SARS-COV2, 3-chymotrypsin-like protease and papain-like protease. We also investigates the ADMET properties of the top 10 besting binding drugs to understand the drug likeness property.
    Keywords covid19
    Publisher American Chemical Society (ACS)
    Publishing country us
    Document type Book ; Online
    DOI 10.26434/chemrxiv.12980306
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Book ; Online: Simeprevir and Eltrombopag as Potential Inhibitors of SARS-CoV2 Proteases

    Swargiary, Ananta / Verma, AKALESH / Daimari, Manita / Roy, Mritunjoy Kumar

    A Molecular Docking and Virtual Screening Approach to Combat COVID-19

    2020  

    Abstract: The present study investigates the binding affinities of 61 FDA approved drugs against two key proteases of SARS-COV2, 3-chymotrypsin-like protease and papain-like protease. We also investigates the ADMET properties of the top 10 besting binding drugs to ...

    Abstract The present study investigates the binding affinities of 61 FDA approved drugs against two key proteases of SARS-COV2, 3-chymotrypsin-like protease and papain-like protease. We also investigates the ADMET properties of the top 10 besting binding drugs to understand the drug likeness property.
    Keywords covid19
    Publisher American Chemical Society (ACS)
    Publishing country us
    Document type Book ; Online
    DOI 10.26434/chemrxiv.12980306.v1
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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