The release of cytochrome c and the regulation of the programmed cell death progress in the endosperm of winter wheat (Triticum aestivum L.) under waterlogging.

It has been shown in mammalian systems that the mitochondria can play a key role in the regulation of apoptosis by releasing intermembrane proteins (such as cytochrome c) into the cytosol. Cytochrome c released from the mitochondria to the cytoplasm activates proteolytic enzyme cascades, leading to specific nuclear DNA degradation and cell death. This pathway is considered to be one of the important regulatory mechanisms of apoptosis.

[Isolation and Identification of Human Umbilical Cord and Placenta-derived Stem Cells and Their Component Analysis].

Objective: Clinical transplantation evidence has been indicated that umbilical cord blood (UCB) can be useful in the hematopoietic reconstitution in the children, but can not be well in the adult hematopoietic transplantation because of the low count. This study was to evaluate a new method for collecting stem cells from human placenta and umbilical cord, and to comparatively analyze the similarity and difference of quality and quantity of the cells.

Methods: The UCB was collected, in same time the placental tissue was sterily collected; the umbilical placenta was collected by perfusing the blood (UPB) cord arterial and venous vascules with 0.

[Study on quantificational analysis method for the non-crystalline content in blast furnace slag].

Quantificational analysis method for the non-crystalline and crystalline contents in blast furnace slag was studied by means of X-ray diffraction. The process of quantificational analysis method includes standard samples preparation, samples preparation, X-ray diffraction measurement and data treatment. The data treatment includes integration areas of non-crystalline curve and crystalline peaks in certain diffraction angle range, linear fitting and quantificational coefficient determination.