Posted by admin on Jan 1, 2011 in |
The aim of the present study was to carry out phytochemical screening and anticonvulsant activity of various extracts of the whole parts of Wedelia chinensis. The extracts (Petroleum ether, Ethanolic & Aqueous) were subjected to various chemical tests in order to identify the main phytoconstituents of the plant. The results of the present investigation revealed that the ethanolic extract contains glycosides and little amount of alkaloids and flavonoids, petroleum ether extract indicates the presence of steroids and aqueous extract was rich in glycosides and saponins. The anticonvulsant activity of ethanolic and aqueous extract of whole plant of Wedelia chinensis at a dose level of 250, 500, 750 mg/kg b.w, p.o. was performed in mice by using MES and PTZ methods. Phenytoin was used as a reference compound (25mg/kg b.w, i.p). Seizures were induced by delivering electroshock of 50 mA for 2 seconds by means of electro convulsiometer through a pair of ear clip electrodes whereas in PTZ model, PTZ at the dose of 80 mg/kg was injected i.p. to...
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Posted by admin on Jan 1, 2011 in |
Buccal controlled drug delivery system has been developed since the environment of the oral cavity provides potential sites for drug delivery. The acid hydrolysis and first pass effects can be avoided. The release of drug can be affected by continuous secretion of saliva. The mucin film exists in oral mucosa offers an opportunity to develop mucoadhesive system, which retain at absorption site for prolonged time by mucoadhesive binding. The close contact with absorption membrane causes more absorption of the drug. The pH of buccal cavity ranges between 5-7, and does not cause any problem to the drug with the right dosage form design and formulation; the permeability and the local environment of the mucosa can be controlled and manipulated in order to accommodate drug permeation. Buccal drug delivery is a promising area for continued research with the aim of systemic delivery of orally inefficient drugs as well as a feasible and attractive alternative for non-invasive delivery of potent peptide and protein drug molecules. The objective of this article is...
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Posted by admin on Jan 1, 2010 in |
Diabetes and its different types is an age old disease for clinicians since centuries. Many aspects of Diabetes needs to be explored with respect to physiological actions of insulin and the various clinical features of this disease such as tissue complication , since this is life style disease , so proper treatment in relation to diet and anti diabetic agents is emphasized In fact, herbal treatment for diabetes is not new. Plants and plant extracts were used to combat the disease as early as 1550 B.C., with as many as 400 “prescribed” before the development earlier this century of effective medications to control diabetes. In this paper an attempt has been made to give an overview of certain Indian plants with their phytoconstituents and mechanism of action which have been studied for their antidiabetic activity....
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Posted by admin on Jan 1, 2010 in |
Diabetic neuropathy is one of the most serious microvascular complications of diabetes, which appears in about 50% of the patients suffering from diabetes. It is a nerve disorder caused by diabetes, characterized usually by numbness, pain or tingling in the feet or legs, which can lead to serious problems. Patients with diabetic neuropathy suffer from various types of pain. The underlying mechanisms include hyperglycaemia, insulin deficiency, oxidative stress, nitrosative stress, ischaemia, osmolyte accumulation, neurotropic factors deficiency, autoimmune-mediated nerve destruction, alterations in cellular signal pathways and gene expression of proteins. The factors leading to the development of peripheral neuropathy in diabetes are not understood completely, and multiple hypotheses have been advanced which include the polyol pathway, non-enzymatic glycation, oxidative stress, altered neurotropism and apoptosis. At present, there is no clinically proven efficacious drug specifically designated for the treatment of diabetic neuropathy; however, prevention or retardation of the progress of diabetic neuropathy is considered to depend on various antidiabetics, antioxidants, anti-depressants, anticonvulsants, NSAIDs, etc. The new advances in the development of...
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Posted by admin on Jan 1, 2010 in |
Antioxidants are gaining a lot of importance as a panacea for a large number of life-style diseases like aging, cancer, diabetes, cardiovascular and other degenerative diseases etc. owing to our sedentary way of life and stressful existence. Added to these are the deleterious effects of pollution and exposure to harmful chemicals. All the above cause may accumulation of harmful free radicals. The present article includes the detailed exploration of in-vitro and in-vivo models for antioxidant activity....
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