Abstract: Disclosed is a method for culturing myocardium-resident cardiac progenitor cells, comprising: embedding myocardial fragments into hydrogel; culturing the myocardial fragment into hydrogel; degrading only the hydrogel to recover cardiac progenitor cells grown out of the myocardial fragment to the hydrogel; and amplifying the cardiac progenitor cells in vitro. Also, the cardiac progenitor cells, a method for differentiating the same, and the use thereof as cell therapeutic agent for heart diseases are provided. In addition to possessing the potential to differentiate into cardiomyocytes, osteoblasts, adipocytes, chondrocytes, vascular endothelial cells, smooth muscle cells, neural cells, and skeletal muscle cells, the myocardium-resident cardiac progenitor cells can spontaneously differentiate into cardiomyocytes even in the absence of a special differentiation inducing agent.

Abstract: The present invention relates to a method of screening placental proteins responsible for pathophysiology of preeclampsia, and a marker for early diagnosis and prediction of preeclampsia. In accordance with one aspect of the present invention, there is provided a method of screening placental proteins responsible for pathophysiology of preeclampsia by 2D E-proteomics analysis, comprising: isolating placental proteins from a placental tissue; separating the isolated proteins two-dimensionally through 2D electrophoresis; and comparing and analyzing the separated proteins based on scanned gel images and differences in the images between normal placental proteins and preeclamptic placental proteins, wherein the comparison and analysis of the placental proteins based on the scanned gel images and differences in the images are accomplished by selecting proteins with differences of 140% or more between two placentas.