DESIGN AND DEVELOPMENT OF OPTICAL ELASTOGRAPHY SETUP

The mechanical properties of the skin are an indication of its physiological condition. The properties can serve as potential information for dermatologists for diagnosis and qualitative assessment. Elastography is a medical imaging modality developed to extract the elastic properties of a tissue by application of an external force. Optical elastography is a technique of elastography which uses laser speckle tracking to study the elastic properties of several soft tissue including skin. This work is aimed at developing an optical elastography setup that can study the elastic properties of skin. The setup includes an imaging system and a force-application system controlled by a user-friendly Graphical User Interface(GUI). This thesis describes, in detail, the hardware and software components involved in the setup and also, the results obtained with the use of this setup

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Not AvailableTo evaluate the anti diabetic and anti hyperlipidemic activities of different extracts of Ailanthus malabarica stem bark in alloxan induced diabetic rats. Different extracts (hexane, ethanol and water, 50 mg/kg) of A. malabarica stem bark were administered to alloxan-induced diabetic rats for 21 days and blood glucose levels of the diabetic rats were monitored at one week intervals. Lipid profiles of the treated diabetic rats were determined after the period of treatment. Treatment of alloxan-induced diabetic rats with ethanol extract of A. malabarica stem bark caused a significant (P<0.05) reduction in fasting blood glucose levels of the diabetic rats in 21 days treatment. The ethanol extract showed a comparable action with the reference drug, glibenclamide. The ethanol extract exerted a significant reduction in the levels of serum total cholesterol, triglycerides, LDL, VLDL and phospholipids, and increase in HDL levels of the diabetic rats. However, water and hexane extract of A. malabarica stem bark did not show any such beneficial effects. . These results suggest that the ethanol extract of A. malabarica stem bark possesses anti diabetic effect on alloxan induced diabetic rats and this justifies its usage in ethno medicine and can be exploited in the management of diabetes.Not Availabl