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      Pharmacological potentials of Premna integrifolia L.

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          Abstract

          Premna integrifolia Linn. (Verbenaceae) is an important constituent of the formulation of ten roots of herbs known as Daśamūla and is widely used for treating various ailments in the Indian system of medicine. Aim of this review is to provide comprehensive information on the pharmacological activities of various parts of P. integrifolia. All the relevant universally accepted electronic databases were searched with respect to the terms “ Agnimanthā”, “Headache tree”, “ Premna integrifolia”, “ Premna obtusifolia”, “ Premna serratifolia” including Indian classical texts, pharmacopoeias, Ayurvedic books, journals, etc., for information without specific timeline. Complete information of the plant has been collected manually since the year 1964 and has been arranged chronologically. The collected data reflects that many ethno-medicinal claims have been confirmed through the modern in-vitro and in-vivo pharmacological studies using different extracts and their isolates of P. integrifolia. The isolation of active constituents, their biological actions, clinical safety and validation of traditional uses of P. integrifolia could provide leads for further scientific research. The information collected here will be useful to set-up research protocols for modern drugs and Ayurvedic formulation development.

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          Most cited references59

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          Comparative evaluation of hypoglycaemic activity of some Indian medicinal plants in alloxan diabetic rats.

          In our experiments 30 hypoglycaemic medicinal plants (known and less known) have been selected for thorough studies from indigenous folk medicines, Ayurvedic, Unani and Siddha systems of medicines. In all the experiments with different herbal samples (vacuum dried 95% ethanolic extracts), definite blood glucose lowering effect within 2 weeks have been confirmed in alloxan diabetic albino rats. Blood glucose values are brought down close to normal fasting level using herbal samples at a dose of 250 mg/kg once, twice or thrice daily, as needed. While evaluating comparative hypoglycaemic activity of the experimental herbal samples, significant blood glucose lowering activities are observed in decreasing order in the following 24 samples-Coccinia indica, Tragia involucrata, G. sylvestre, Pterocarpus marsupium, T. foenum-graecum, Moringa oleifera, Eugenia jambolana, Tinospora cordifolia, Swertia chirayita, Momordica charantia, Ficus glomerata, Ficus benghalensis, Vinca rosea, Premna integrifolia, Mucuna prurita, Terminalia bellirica, Sesbenia aegyptiaca, Azadirachta indica, Dendrocalamus hamiltonii, Zingiber officinale, Aegle marmelos, Cinnamomum tamala, Trichosanthes cucumerina and Ocimum sanctum. Present studies besides confirming hypoglycaemic activities of the experimental herbal samples, help identify more potent indigenous hypoglycaemic herbs (in crude ethanolic extract) from the comparative study of the reported experimental results. Copyright 2002 Published by Elsevier Science Ireland Ltd.
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            Antiparasitic activity of some New Caledonian medicinal plants.

            Twenty-nine extracts of 18 medicinal plants used in New Caledonia by traditional healers to treat inflammation, fever and in cicatrizing remedies were evaluated in vitro against several parasites (Leishmania donovani, Trypanosoma brucei brucei, Trichomonas vaginalis and Caenorhabditis elegans). Among the selected plants, Scaevola balansae and Premna serratifolia L. were the most active against Leishmania donovani with IC(50) values between 5 and 10microg/ml. The almond and aril extracts from Myristica fatua had an IC(50) value of 0.5-5microg/ml against Trypanosoma brucei brucei. Only Scaevola balansae extract presented a weak activity against Trichomonas vaginalis. The almond extract from Myristica fatua presented significant activity against Caenorhabditis elegans (IC(50) value of 6.6+/-1.2microg/ml).
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              A novel diterpene skeleton: identification of a highly aromatic, cytotoxic and antioxidant 5-methyl-10-demethyl-abietane-type diterpene from Premna serratifolia.

              Premna serratifolia Linn. (syn: . P. corymbosa (Burm. f.) Merr., P. integrifolia L. and P. obtusifolia R. Br.) is a member of the Verbenaceae family that is extensively used in the Ayurvedic system of medicine in India. As part of our continuous pharmacological and phytochemical studies on medicinal plants, we have screened the methanolic extracts of leaves, root bark (RB) and root wood of P. serratifolia for cytotoxic activity against two cancer cell lines: SHSY-5Y neuroblastoma and B16 melanoma cells. The RB extract that showed promising activity was fractionated using solvents of increasing polarity followed by a combination of Sephadex LH-20 column and Combiflash chromatography as well as HPLC to afford the active principle. Comprehensive spectroscopic analysis including 1D and 2D NMR (COSY, HMQC, HMBC, NOESY) and MS analysis revealed the identity of the isolated compound as 11,12,16-trihydroxy-2-oxo-5-methyl-10-demethyl-abieta-1[10],6,8,11,13-pentene that appears to be a novel compound based on a new diterpene skeleton. The cytotoxic activity of the isolated compound was 21 and 23 times higher than the crude extract against the SHSY-5Y and B16 cells, respectively. The novel compound also possesses in vitro antioxidant effects as evidenced by the DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging effect where an IC50 value of 20.4 ± 1.3 μM was obtained. In comparison, the positive control, caffeic acid, showed an IC50 value of 14.4 ± 1.6 μM.
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                Author and article information

                Journal
                Anc Sci Life
                Anc Sci Life
                ASL
                Ancient Science of Life
                Medknow Publications & Media Pvt Ltd (India )
                0257-7941
                2249-9547
                Jan-Mar 2016
                : 35
                : 3
                : 132-142
                Affiliations
                [1]Department of Pharmacology, Sandip Institute of Pharmaceutical Sciences, Mahiravni, Nashik, Maharashtra, India
                Author notes
                Address for correspondence: Prof. Prashant Y. Mali, Department of Pharmacology, Sandip Institute of Pharmaceutical Sciences, Sandip Foundation, Trimbak Road, Mahiravni, Nashik, Maharashtra, India. E-mail: pymali2008@ 123456rediffmail.com
                Article
                ASL-35-132
                10.4103/0257-7941.179864
                4850773
                27143797
                bb190b4f-f458-4f03-8737-4c4244efcfae
                Copyright: © Ancient Science of Life

                This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

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                Review Article

                Life sciences
                agnimantha,premna integrifolia,premna obtusifolia,premna serratifoliaare
                Life sciences
                agnimantha, premna integrifolia, premna obtusifolia, premna serratifoliaare

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