A Review on the Alkaloids an Important Therapeutic Compound from Plants

Plants have always been a basis for the traditional medicine systems and they have provided continuous remedies to the mankind for thousands of years. Therapeutic application of plants includes anti-tumor, anti-viral, anti-inflammatory, anti-malarial activities. Knowledge of the plants for the preparation of various drugs has been of great significance. Plants are considered as a rich source of wide variety of ingredients which can be used for the development of drug. Alkaloids are the important secondary metabolites that are known to possess therapeutic properties. On the basis of their biosynthetic precursor and heterocyclic ring system, the compounds have been classified into various categories which include indole, piperidine, tropane, purine, pyrrolizidine, imidazole, quinolozidine, isoquinoline and pyrrolidine alkaloids. Alkaloids are able to prevent the onset of various degenerative diseases by free radical scavenging or binding with the oxidative reaction catalyst. Several studies have been done in evaluation of alkaloids from various plants for its wide range of pharmaceutical activities. This review provides an overview of alkaloid drugs that are derived from the various plants and potential against various diseases.

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