Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship

In this study, two iridoids i.e. agnuside (1) and bartioside (2) were isolated from Vitex grandifolia for the first time. These potent flavonoids were purified using fractionation and were separated by Sephadex LH 20, Silica gel 60, RP C-18 and Diaion HP-20 columns. Their structure was elucidated u...

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Main Authors: OM Bello, AB Ogbesejana, M Osibemhe
Format: Article
Language:English
Published: Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) 2018-04-01
Series:Journal of Applied Sciences and Environmental Management
Subjects:
Online Access:https://www.ajol.info/index.php/jasem/article/view/169388
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author OM Bello
AB Ogbesejana
M Osibemhe
author_facet OM Bello
AB Ogbesejana
M Osibemhe
author_sort OM Bello
collection DOAJ
description In this study, two iridoids i.e. agnuside (1) and bartioside (2) were isolated from Vitex grandifolia for the first time. These potent flavonoids were purified using fractionation and were separated by Sephadex LH 20, Silica gel 60, RP C-18 and Diaion HP-20 columns. Their structure was elucidated using FTIR, 1D and 2D NMR data, these were further evaluated for anti-inflammatory and antileishmania effects. Agnuside, isolated for the first time from V. grandifolia exhibited good activity against NF-kB assay with IC50 (ug/mL) of 8.9 while bartsioside showed an IC50 (ug/mL) of 12. Agnuside (1), an iridoid showed the highest IC50 (μg/mL) of 5.38 and corresponding IC90 (μg/mL) of 7.07 against L. donovani (intracellular amastigotes in THP1 cells). Positive standards were employed in these studies. The results allowed us to establish the relationship between the structure and the activities on the basis of the different patterns of substitution, particularly hydroxylation. This study gave credence to the view that there is a link between low incidence of some diseases and consumption of vegetables hence advantages of these vegetables are beyond nutritional gains.
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spelling doaj.art-938c327ef151412692dce12105ddc7c02024-04-02T19:55:48ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992018-04-0122310.4314/jasem.v22i3.14Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity RelationshipOM BelloAB OgbesejanaM Osibemhe In this study, two iridoids i.e. agnuside (1) and bartioside (2) were isolated from Vitex grandifolia for the first time. These potent flavonoids were purified using fractionation and were separated by Sephadex LH 20, Silica gel 60, RP C-18 and Diaion HP-20 columns. Their structure was elucidated using FTIR, 1D and 2D NMR data, these were further evaluated for anti-inflammatory and antileishmania effects. Agnuside, isolated for the first time from V. grandifolia exhibited good activity against NF-kB assay with IC50 (ug/mL) of 8.9 while bartsioside showed an IC50 (ug/mL) of 12. Agnuside (1), an iridoid showed the highest IC50 (μg/mL) of 5.38 and corresponding IC90 (μg/mL) of 7.07 against L. donovani (intracellular amastigotes in THP1 cells). Positive standards were employed in these studies. The results allowed us to establish the relationship between the structure and the activities on the basis of the different patterns of substitution, particularly hydroxylation. This study gave credence to the view that there is a link between low incidence of some diseases and consumption of vegetables hence advantages of these vegetables are beyond nutritional gains. https://www.ajol.info/index.php/jasem/article/view/169388Vitex grandifoliaagnusidebartsiosideanti-inflammatory and antileshmania
spellingShingle OM Bello
AB Ogbesejana
M Osibemhe
Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
Journal of Applied Sciences and Environmental Management
Vitex grandifolia
agnuside
bartsioside
anti-inflammatory and antileshmania
title Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
title_full Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
title_fullStr Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
title_full_unstemmed Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
title_short Iridoid glucosides from <i>Vitex grandifolia</i> displayed Anti-inflammatory and Antileishmania Effects and Structure Activity Relationship
title_sort iridoid glucosides from i vitex grandifolia i displayed anti inflammatory and antileishmania effects and structure activity relationship
topic Vitex grandifolia
agnuside
bartsioside
anti-inflammatory and antileshmania
url https://www.ajol.info/index.php/jasem/article/view/169388
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AT abogbesejana iridoidglucosidesfromivitexgrandifoliaidisplayedantiinflammatoryandantileishmaniaeffectsandstructureactivityrelationship
AT mosibemhe iridoidglucosidesfromivitexgrandifoliaidisplayedantiinflammatoryandantileishmaniaeffectsandstructureactivityrelationship