Distribution and differentiation of marrow stem cells transplanted by different ways in ischemic myocardium and other organs in rabbits.

In our study, BrdU-labeled marrow stem cells (MSCs) were directly (group 1), by the coronary artery (group 2), or by the ear vein (group 3) transplanted into myocardium to observe their distribution and differentiation in acute myocardial infarction (AMI) rabbit models. BrdU-positive cells, and BrdU and α-sarcomeric actin double positive cells were visible in the infarcted zones and its peripheral region. Cell processes between BrdU-positive cells and between BrdU-positive cells and host cardiomyocytes linked together.

[Relationship and clinical significance of KiSS-1, nuclear factor kappa B (NF-kappaB), p50, and matrix metalloproteinase 9 expression in breast cancer].

Objective: To study the expression of KiSS-1, nuclear factor kappa B (NF-kappaB) p50 and matrix metalloproteinase 9 (MMP-9) in breast cancer tissue and the relationship with clinicpathological factors.

Methods: Immunohistochemical staining for KiSS-1, NF-KappaBp50, and MMP-9 protein was performed in 152 cases of human breast tissue [92 cases of BC, 30 cases of epithelial hyperplasia, and 30 cases of peritumoral breast tissue (PMT)] and 54 cases of axillary lymph node metastases. In-situ hybridization for KiSS-1 mRNA was done in 50 cases of breast cancer, and 20 cases of PMT.

[AOD and angstrom parameters of aerosols observed by the Chinese sun hazemeter network from August to December 2004].

Atmospheric aerosol optical depth (AOD(lamda=500 nm)), Angstrom turbidity coefficient (beta) and Angstrom wavelength exponent (alpha) are obtained using the CERN sun hazemeter network from Aug to Dec, 2004. The results are as follows: At the Tibetan Plateau, Haibei and Lhasa, the mean of AOD is 0.09, 0.

[Introduction and calibration of the Chinese sun hazemeter network].

Much of the current uncertainty in the quantitative assessment of the climate and environment change is due to our lack of knowledge of the aerosol, for which the large-scale sun hazemeter ground-based network directly provides basic data. The data also can revise the results of the satellite remote sensing. Depending on the stations of CERN, the standard network was first built in China.