Studies on Human Urine α-Amylases and α-Glucosidases

Various kinds of enzymes are known to be secreted into human urine as normal components. However, the enzymatic and physicochemical properties, as well as the tissue sources of the urine enzymes, remains to be clarified. Human urine may be the sole limitless source of certain human enzymes. Among these enzymes, current results which are concerned with the purification methods, the enzymatic and physicochemical properties and the origins of human urine α-amylases and α-glucosidases are presented, and also the discrimination between pancreatic and salivary α-amylase isozymes using by the specific monoclonal antibodies is described and discussed in this review article.