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| 1 | Relationship between Lightning Activity and Tropospheric Nitrogen Dioxide and the Estimation of Lightning-produced Nitrogen Oxides over China显示文摘To better understand the relationship between lightning activity and nitrogen oxides(NOX) in the troposphere and to estimate lightning-produced NOX(LNOX) production in China more precisely, spatial and temporal distributions of vertical column densities of tropospheric nitrogen dioxide(NO_2VCDs) and lightning activity were analyzed using satellite measurements. The results showed that the spatial distribution of lightning activity is greater in the east than in the west of China, as with NO_2 VCDs. However, the seasonal and annual variation between lightning and NO_2 density show different trends in the east and west. The central Tibetan Plateau is sparsely populated without modern industry, and NO_2 VCDs across the plateau are barely affected by anthropogenic sources. The plateau is an ideal area to study LNOX. By analyzing 15 years of satellite data from that region, it was found that lightning density is in strong agreement with annual, spatial and seasonal variations of NO_2 VCDs, with a correlation coefficient of 0.79 from the linear fit. Combining Beirle's method and the linear fit equation,LNOXproduction in the Chinese interior was determined to be 0.07(0.02–0.27) Tg N yr^(-1) for 1997–2012, within the range of 0.016–0.384 Tg N yr^(-1) from previous estimates. | Fengxia GUO Xiaoyu JU Min BAO Ganyi LU Zupei LIU Yawen LI Yijun MU | 2017 | Advances in Atmospheric Sciences2017，34，2： | 4 |
| 2 | The27bpvntrpolymorphisminintron4ofthehumanenosgeneinhealthysingaporeanchinese,indians, and malays显示文摘 | GANYY CHENCF | 2012 | Biochem Genet2012，50，12： | 1 |
| 3 | Upregulation of Cartilage Oligomeric Matrix Protein and Bone Morphogenetic Protein-2 May Associate with Calcific Aortic Valve Disease显示文摘Objective:Calcific aortic valve disease(CAVD)affects millions of elderly people,and there is currently no effective way to stop or slow down its progression.Therefore,exploring the pathogenesis of CAVD is very important for prevention and treatment.Cartilage oligomeric matrix protein(COMP)have important role in cell phenotype change.This study is aimed to confirm whether COMP participate in CAVD and try to find the possible mechanisms.Methods:Human aortic valve tissues from Nanjing First Hospital(CAVD group,n=20;control group,n=11)were harvested.The expression level of COMP was tested by western blot and immunohistochemistry.Dual immunofluorescence staining was used for locating COMP.Bone morphogenetic protein-2(BMP2)signalling were tested by western blot.The animal model was also used to detect COMP level by immunohistochemistry.Results:The results showed that the expression level of COMP was significantly increased in the calcific valve samples when compared with that of the control valve(P<0.05);COMP was expressed near the calcific nodules and co-localized with a-smooth muscle actin(a-SMA).The protein levels of BMP2 and p-Smads 1/5/9 were markedly more highly expressed in the CAVD group than the control group(P<0.05).Furthermore,immunofluorescence detection showed that COMP and BMP2 were co-located in calcific valves.Conclusions:The above results suggested that upregulation of COMP and BMP2 may be associated with aortic valve calcification and that COMP may become a potential therapeutic target in human CAVD. | Yueyue Xu Yide Cao Yafeng Liu Jingsong Wang Ganyi Chen Zhonghao Tao Yiwei Yao Yuchen Cai Yunzhang Wu Wen Chen | 2021 | Cardiology Discovery2021，1，2： | 0 |
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