Design and study of anticaries effect of different medicinal plants against S.mutans glucosyltransferase

Autor: Kiranmai Mandava, Uma Rajeswari Batchu, Shravya Kakulavaram, Shulamithi Repally, Ishwarya Chennuri, Srinivas Bedarakota, Namratha Sunkara
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: BMC Complementary and Alternative Medicine, Vol 19, Iss 1, Pp 1-8 (2019)
Druh dokumentu: article
ISSN: 1472-6882
DOI: 10.1186/s12906-019-2608-3
Popis: Abstract Background The present study was aimed to evaluate the molecular level anticaries effect of different medicinal plants against Streptococcus mutans (S.mutans) glucosyltransferases (gtf). Methods A total of six natural sources named as Terminalia chebula (T.chebula), Psidium guajava (P.guajava), Azadirachta indica (A.indica) and Pongamia pinnata (P.pinnata); two essential oils, clove (Syzygium aromaticum) and peppermint oil (Mentha piperita) were selected as test samples. Hydroalcoholic plant extracts and essential oils were examined for their inhibitory potential on gtf isolated from S.mutans. Polyherbal mouth wash was prepared and its effect on gtf activity was compared with commercial chlorhexidine mouth wash (5%w/v). Enzyme kinetic study was carried out in order to explore the molecular mechanism of enzyme action. Results Out of six natural sources tested, A.indica has shown maximum inhibitory effect of 91.647% on gtf and T.chebula has shown IC50 of 1.091 mg/ml which is significant when compared to standard chlorhexidine. From the final result of kinetic analysis it was found that T.chebula, P.guajava and P.pinnata have show uncompetitive inhibition where as A.indica has shown non-competitive inhibition. Surprisingly, both essential oils have shown allosteric inhibition (sigmoidal response). The polyherbal moutwash has shown significant inhibitory potential on gtf (95.936%) when compared to commercial chlorhexidine mouthwash (p
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