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A review on medicinal importance,pharmacological activity and bioanalytical aspects of beta-carboline alkaloid "Harmine"

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Asian Pacific Journal of Tropical Biomedicine 2012年第8期2卷 660-664页

作者： K Patel m gadewar R Tripathi SK Prasad Dinesh Kumar Patel G.L.A Institute of Pharmaceutical Research S.K.I.P.S Department of Pharmaceutics Institute of TechnologyBanaras Hindu University

Harmine,a beta-carboline alkaloid,is widely distributed in the plants,marine creatures,insects, mammalians as well as in human tissues and body *** was originally isolated from seeds of Peganum harmal in 1847 having a core indole structure and a pyridine *** has various types of pharmacological activities such as antimicrobial,antifungal,antitumor,cytotoxic, antiplasmodial,antioxidaant,antimutagenic,antigenotoxic and hallucinogenic *** acts on gamma-aminobutyric acid type A and monoamine oxidase A or B receptor,enhances insulin sensitivity and also produces vasorelaxant *** prevents bone loss by suppressing *** current review gives an overview on pharmacological activity and analytical techniques of harmine,which may be useful for researcheres to explore the hidden potential of harmine and and will also help in developing new drugs for the treatment of various diseases.

关键词： Harmine Alkaloid Pharmacological activity Analytical technique Peganum harmala

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A Review on Pharmacological and Analytical Aspects of Diosmetin:A Concise Report

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Chinese Journal of Integrative medicine 2013年第10期19卷 792-800页

作者： Kanika Patel manoj gadewar Vijay Tahilyani Dinesh Kumar Patel GLA Institute of Pharmaceutical Research Mathura(281406)India SKIPS Warangal-Andhra Pradesh(506015)India Sonekar College of Pharmacy KoradiNagpur(440001)India Department of Pharmaceutics Institute of TechnologyBanaras Hindu UniversityVaranasi(221005)India

Plants have been used as a source for food material and natural remedies for the treatment of vast range of diseases. Nature provides us remedies for the treatment of various types of disorders ranging from simpte aitments to complicated diseases. Plants are known to possess different pharmacological activities due to the presence of various phytoconstituents, Flavonoids are one of the main active phytoconstituents found in fruits, vegetables, wines, tea and cocoa. Flavonoids exhibit various pharmacological activities such as antioxidant, anti-inflammatory, anti-allergic, antibacterial, oestrogenic, cytotoxic antitumoural, hepatoprotective, antithrombotic and antiviral activity. Diosmetin （3＇, 5, 7-trihydroxy-4＇-methoxyflavone）, the aglycone part of the flavonoid glycosides diosmin occurs naturally in citrus fruit. Although it is found in herbal medicines and plays an important role in the treatment of various ailments, only limited scientific researches have been conducted. The aim of this review is to collect all available scientific literature published on diosmetin and combine it into this paper. This review contains an overview of pharmacological activities, isolation techniques and analytical techniques for diosmetin. Thus, valuable information provided in the present review will help researchers in developing alternative methods for the treatment of diseases from diosmetin.

关键词： analytical techniques diosmetin flavonoid pharmacological activity phytoconstituents

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A review on pharmacological and analytical aspects of diosgenin:a concise report

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Natural Products and Bioprospecting 2012年第2期2卷 46-52页

作者： Kanika PATEL manoj gadewar Vijay TAHILYANI Dinesh Kumar PATEL G.L.A Institute of Pharmaceutical Research MathuraIndia S.K.I.P.S.Warangal A.P.India Sonekar College of Pharmacy KoradiNagpurIndia Department of Pharmaceutics Institute of TechnologyBanaras Hindu UniversityVaranasi 221005India

Diosgenin is a steroidal sapogenin found in plants such as Dioscorea nipponoca,Solanum incanum,Solanum xanthocarpum and Trigonella foenum ***,biologically active phytochemicals have been used for the treatment of various types of disorder such as leukemia,inflammation,hypercholesterolemia and *** is also able to prevent bone loss to the same extent as that of *** is a typical initial intermediate for synthesis of steroidal compounds,oral contraceptives and sex ***,Costus and Trigonella are mainly used for the production of *** the basis of literature survey it divulges that diosgenin has very impressive pharmacological profile and could be used as a medicine for the treatment of different types of disorders in the ***,the present work aims to provide collective information in concern with its pharmacological activity and phytoanalytical *** review will be beneficial to researches for the development of an alternative method for the treatment of innumerable diseases from diosgenin.

关键词： analytical techniques cancer diosgenin pharmacological activity plant source seperation techniques

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Zinc Oxide Nanostructure Thick Films as H<sub>2</sub>S Gas Sensors at Room Temperature

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Journal of Sensor Technology 2013年第3期3卷 31-35页

作者： Vinod S. Kalyamwar Fulsingh C. Raghuwanshi Narayan L. Jadhao Anil J. gadewar Bharatiya mahavidyalaya Amravati India Vidyabharati mahavidyalaya Amravati India

The ZnO nanostructures have been synthesized and studied as the sensing element for the detection of H2S. The ZnO nanostructures were synthesized by hydrothermal method followed by sonication for different interval of time i.e. 30, 60, 90 and 120 min. By using screen printing method, thick films of synthesized ZnO nanostructure were deposited on glass substrate. Gas sensing properties of ZnO nanostructure thick films were studied for low concentration H2S gas at room temperature. The effects of morphology of synthesized ZnO nanostructure on gas sensing properties were studied and discussed. ZnO nanostructure synthesized by this method can be used as a promising material for semiconductor gas sensor to detect poisonous gas like H2S at room temperature with high sensitivity and selectivity.

关键词： ZnO Nanostructure Room Temperature Gas Sensor for H2S

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