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There are many methods for the study and quantification of enzymes in the body systems. Off-late, the method of zymography has assumed immense importance in diagnostic medicine. It is a method where enzymes are visualized using the substrate conversion technique. The product of reaction appears, or the substrate disappears and the mechanisms specific for the recognition of this measure the biochemical reaction. This procedure has many advantages, the most important ones being providing both qualitative and measurable data, such as molecular zymography methods for visualising hydrolytic enzymes and differentiating among whole molecules, degradation and complexes. There are three main types of zymography, namely- In-Gel zymography (IGZ), In-Situ zymography (ISZ) and In-vivo zymography (IVZ). There are many variations of this technique like transfer 2D and reverse zymography. This method is mainly used to study the expression of matrix metalloproteinases. Alternate to the conventional zymography techniques have been suggested, like usage of the new Ponceau S staining protocol that provides significant benefits in terms of assay usability and cost reduction and is comparatively faster and easier. Mild alterations in the actual procedure of zymography can take care of minor issues arising during the procedure.
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