Objective:To compare expression levels of matrix Gla protein (MGP) and bone morphogenetic protein 2 (BMP-2) in Randall's plaque of renal papillary tissues in patients with calcium oxalate kidney stones and the underlying mechanism for stone formation.Methods:A total of 30 samples of Randall's plaque in renal papillary tissues from patients with calcium oxalate kidney stones were collected from the Department of Urology of Xiangya Hospital of Central South University from April,2015 to December,2015 and served as an experimental group.Ten samples of renal papillary tissues in patients undergone renal tumor nephrectomy were collected from the same hospital and served as a control group.The expressions of MGP and BMP-2 mRNA and protein were detected by quantitative real-time PCR and Western blot.Meanwhile,immunohistochemical technique was used to observe the expressions of MGP and BMP-2 in different parts of renal papillary tissues in the 2 groups.Results:1) The mRNA expression levels of MGP in the experimental group and the control group were 0.760±0.804 and 1.365±0.348,respectively,with significant difference between them (P＜0.05).Them RNA levels of BMP-2 in the experimental group and the control group were 2.500±0.725 and 1.485±0.870,respectively,with significant difference between them (P＜0.05).The expression levels of MGP protein in the experimental group and the control group were 0.130±0.424 and 0.202±0.704,respectively,with no significant difference between them (P＞0.05).The expression levels of BMP-2 protein in the experimental group and the control group were 0.885±0.220 and 0.682±0.272,respectively,with significant difference between them (P＜0.05).T-he immunohistochemistry showed that the protein expression of MGP in the experimental group was lower than that in the control group,while the protein expression of BMP-2 in the experimental group was higher than that in the control group (both P＜0.05).Conclusion:The BMP-2 expression is increased while MGP expression is decreased in renal papillary tissues in patients with calcium oxalate kidney stones,and the formation of calcium oxalate kidney stone might be a kind ofosteogenetic reaction or ectopic calcification.

OBJECTIVE:To investigate the characteristics and regularity of lornoxicam related ADR,and to provide reference for rational and safe use of lornoxicam. METHODS:From Jan. 1,2006 to Dec. 31,2013,lornoxicam related ADR reports collect-ed by National ADR Monitoring System in Beijing were analyzed retrospectively about their characteristics and related factors. RE-SULTS:In the statistical period,there were 48 ADR reports related to lornoxicam. The people over 40 years age accounted for 62.5%. 38 patients used lornoxicam by intravenous infusion or intramuscular injection ,accounting for 79.17%. The clinical mani-festations were diverse and complex,in which skin(32.96%)and gastrointestinal damage(25.00%)were more common ADR oc-curred within 30 min,accounting for 35.42%,and it would be better after stopping drug or 1-3 days symptomatic treatment. CON-CLUSIONS:The rational use of lornoxicam can reduce the occurrence of ADR. Suggestion on the use of the drug,is that the pa-tient should be monitored for security,in order to reduce the risk of ADR.