Jian Jianfeng

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This study aimed to investigate whether nitric oxide (NO) could inhibit the elevated endothelin-1 (ET-1) gene expression by pulmonary artery endothelial cells or smooth muscle cells in chronically hypoxic rats by use of in situ hybridization. Male Wistar rats (n = 40) were randomly divided into 1-week hypoxia group, 1-week hypoxia with L-arginine (L-arg)(More)
The defect of existing fidelity definition is discussed, by using this definition, it is found that two obviously different image can be determined to be approximate or the same. According to the defect, an improved fidelity definition is presented. The difference and relation between the two definitions are discussed and the analytic expression for(More)
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