All about Pharmacognosy

All about Pharmacognosy

Archive for December, 2010

Pharmacognosy network worldwide [Phcog.Net]

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KK Mueen Ahmed

Journal of Natural Pharmaceuticals 2010 1(1):56-57

Written by KK Mueen Ahmed

December 8th, 2010 at 12:00 am

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Prominent wound healing properties of indigenous medicines

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Nilesh Gupta, UK Jain

Journal of Natural Pharmaceuticals 2010 1(1):2-13

Wound, a clinical entity, is as old as mankind and often possesses problems in clinical practice. Naturally, the investigative curiosity to promote healing continues since ages. A lot of research has been envisaged to develop better healing agents and it has been a challenging task to generate them and keep pace with the problems encountered. Several drugs of plant, mineral, and animal origin are described in the Ayurveda for their wound healing properties. Most of these drugs are derived from plants. Some of these plants have been screened scientifically for the evaluation of their wound healing activity in different pharmacological models. Some Ayurvedic medicinal plants, namely Argemone mexicana, Boerhaavia diffusa, Catharanthus roseas, Diospyros cardifolia, Eclipta alba, Ficus religiosa, Hypericum perforatum, Lawsonia inermis, Merremia tridentate, and Swertia chirata, were found to be effective in experimental models. The rapidity of wound healing depends, to a considerable extent, on the contraction that begins a few days after injury and continues for several weeks. In the present review, attempts are made to understand various aspects of wound healing in terms of percentage closure of wound, period of complete epithelialization, tensile strength, histopathology, and weight of granuloma in different wound models.

Written by Nilesh Gupta

December 8th, 2010 at 12:00 am

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Evaluation of the DPPH radical scavenging activity, total phenols and antioxidant activities in Indian wild Bambusa vulgaris "Vittata" methanolic leaf extract

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Arvind Kumar Goyal, Sushil Kumar Middha, Arnab Sen

Journal of Natural Pharmaceuticals 2010 1(1):40-45

Background: Antioxidants have the ability to protect organisms from damage caused by free radical-induced oxidative stress. A lot of research is being carried out worldwide directed toward finding natural antioxidants of plant origin. The antioxidant activity of the methanolic extract of Bambusa vulgaris “Vittata” (BVV) leaves is reported along with screening for photochemical constituents of the Indian, wild BVV methanolic leaf extract. Materials and Methods: The antioxidant activity was tested spectrophotometrically, measuring the ability of the plant extract to scavenge a stable DPPH• free radical and the total phenolic and flavonoid contents. Results: Preliminary studies show the presence of carbohydrates, reducing sugars, flavonoids, steroids, saponins, alkaloids, tannins, anthraquinones and glycosides. The antioxidant activity of the investigated extract has a scavenging ability of hydroxyl peroxide radicals (421.74 ± 25.61 mg/ml) and DPPH

Written by Arvind Kumar Goyal

December 8th, 2010 at 12:00 am

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