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      Onosma L.: A review of phytochemistry and ethnopharmacology

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          Abstract

          The genus Onosma L. ( Boraginaceae) includes about 150 species distributed world-wide in which only about 75 plants has been described for its morphology and less than 10 plants for their chemical constituents and clinical potential. The phytochemical reports of this genus revels that it comprise mainly aliphatic ketones, lipids, naphthazarins, alkaloids, phenolic compounds, naphthoquinones, flavones while most important are shikonins and onosmins. The plants are traditionally used as laxative, anthelmintic and for alexipharmic effects. The plants are also equally use in eye, blood diseases, bronchitis, abdominal pain, stangury, thirst, itch, lecoderma, fever, wounds, burns, piles and urinary calculi. The flowers of various plants are prescribed as stimulants, cardiotonic, in body swelling while leaves are used as purgative and in cutaneous eruptions. The roots are used for coloring food stuffs, oils and dying wool and in medicinal preparations. This review emphasizes the distribution, morphology, phytochemical constituents, ethnopharmacology, which may help in future research.

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          Antibacterial activity directed isolation of compounds from Onosma hispidum.

          The chemical investigation of the ethanolic extract of the root bark of Onosma hispidum following antibacterial activity directed isolation led to the isolation of 4-hydroxy-3-methoxy cinnamic acid (ferulic acid) and 4-hydroxy-3-methoxy benzoic acid (vanillic acid) which have been reported for the first time in this species. In addition to these compounds, the crude ethanolic extract and methanol fraction exhibited substantial bioactivity against species of corynebacteria, enterococci, staphylococci and streptococci. Ferulic acid was found more bioactive (being relatively more hydrophobic) compared to vanillic acid.
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            The ecological aspect of ethnobotany and ethnopharmacology of population in Bosnia and Herzegovina.

            This paper contains first systematical revision of the results on traditional use of wild medicinal and aromatic herbs on the territory of Bosnia and Herzegovina (B&H)--west of Balkan Peninsula; Southeast of Europe. There have been detected 227 plants belonging to 71 different plant families, which are being used with ethno therapeutic purpose. Results were obtained by method of open ethno botanical interview which comprised 150 persons, whose average age was 63. Medicinal plants in ethno therapy are being used either in fresh, raw or dried condition. Different herbal parts, depending on period of vegetation season, sometimes even in winter, are basis for preparation of infusions (59%), decoct (19%), tinctures (4%). Especially original are balms known as Bosnian "mehlems", which are fresh cuted herbal parts mixed with lukewarm resin, raw cow butter or honey. In ethno therapy are mostly being used aerial plant organs. Majority of herbs is being used for treatment of illnesses of respiratory (22%), gastrointestinal (19%) and urinary and genital system (9%), for treatment of skin conditions (11%), as well as for nervous system and heart diseases (16%). The most original plants on the field of ethno pharmacology, comparing with ethno therapy practice of other regions, are as follows: Ballota nigra, Aesculus hippocastanum, Calluna vulgaris, Centaurea cyanus, Euphrasia rostkoviana, Geranium robertianum, Gentiana asclepiadea, Helichrysum italicum, Lycopodium clavatum, Marrubium vulgare, Nepeta cataria, Populus tremula, Ruta graveolens, Tamus communis, Teucrium montanum, T. chamaedrys, and endemic plants Gentiana lutea subsp. symphyandra, Teucrium arduini, Micromeria thymifolia, Satureja montana, S. subspicata, Rhamnus fallax and Viola elegantula. There haven't been noticed significant differences in the frequencies of medicinal plants use among different ethnical groups. But, it has been perceived that longer ethno therapeutic tradition possess inhabitants of sub- and Mediterranean areas, as well as inhabitants of the mountain areas of B&H, regardless their ethnicity.
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              Alkannins and shikonins: a new class of wound healing agents.

              Alkannins and Shikonins (A/S) are chiral-pairs of naturally occurring isohexenylnaphthazarins. They are found in the external layer of the roots of at least a hundred and fifty species that belong mainly to the genera Alkanna, Lithospermum, Echium, Onosma and Arnebia of the Boraginaceae family. Their occurrence in Jatropha glandulifera, a member of the Euphorbiaceae, should be considered as an exception. Pharmaceutical formulations with wound healing properties based on A/S have been in the market for many years. Although their wound-healing, anti-inflammatory, antimicrobial, antioxidant, antithrombotic and antitumor properties have been extensively documented, significant insight into their specific molecular pathways and mechanisms was hindered until recently. With the establishment of viable synthetic and biosynthetic routes of A/S and the synthesis of specific derivatives that were discovered the last few years, the effects of those compounds in the molecular-cell biology of human tissues in health and disease have just started being explored in depth, revealing a new class of drugs that hold promise as the basis for many valuable therapeutic targets. In the recent years, a wealth of new information arising from research efforts, on the wound healing properties of A/S has been accumulated. In this paper we review the findings and advances on the molecular and biological properties of A/S that promote wound healing.
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                Author and article information

                Journal
                Pharmacogn Rev
                Pharmacogn Rev
                PRev
                Pharmacognosy Reviews
                Medknow Publications & Media Pvt Ltd (India )
                0973-7847
                0976-2787
                Jul-Dec 2013
                : 7
                : 14
                : 140-151
                Affiliations
                [1] Department of Pharmacy, Shri Ram Murti Smarak College of Engineering and Technology, Bareilly, Uttar Pradesh, India
                [1 ] Department of Pharmacy, M. J. P. Rohilkhand University, Bareilly, Uttar Pradesh, India
                Author notes
                Address for correspondence: Mr. Neeraj Kumar, Department of Pharmacy, Shri Ram Murti Smarak College of Engineering and Technology, Nainital Road, Bareilly - 243 202, Uttar Pradesh, India. E-mail: neerajsitm@ 123456yahoo.com
                Article
                PRev-7-140
                10.4103/0973-7847.120513
                3841992
                24347922
                a6557d50-c26e-452a-a098-4aa4a42b46b4
                Copyright: © Pharmacognosy Reviews

                This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 04 April 2013
                : 10 May 2013
                : 25 October 2013
                Categories
                Review Article

                Pharmacology & Pharmaceutical medicine
                hispidone,naphthoquinones,ratanjot,alkannin,shikonin
                Pharmacology & Pharmaceutical medicine
                hispidone, naphthoquinones, ratanjot, alkannin, shikonin

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