Study on effect of total matrines and extracts from Periplaneta americana on negative endometrial cancer cell JEC of progesterone receptors Matrix formulation optimizing of Periplaneta americana Cream by D-optimal mixture design Prokaryotic Expression of i-type Lysozyme from Periplaneta americana and Preparation of Its Polyclonal Antibodies Review on investigations related to chemical constituents and biological activities of Periplaneta americana Isolation of Ethyl Acetate Extract from Periplaneta americana and Its Antimicrobial Activity