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Wang, Li-Ying,Wang, Xiu-Hua,Tan, Jia-Lian,Xia, Shuai,Sun, Heng-Zhi,Shi, Jin-Wen,Jiang, Ming-Dong,Fang, Liang,Zuo, Hua,Dupati, Gautam,Jang, Kiwan,Shin, Dong-Soo Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.11
A number of novel small molecules, safrole oxide derivatives 4a-c, 6a-c, 9a-h, were synthesized by the reaction of safrole oxide with anilines 3 and 5, or its alkyl allyl ether derivative 7 with alkyl bromide 8 in moderate yields. The antiproliferative effects of all the target molecules on A549 cell growth were investigated and it was found that the 14 novel compounds could suppress A549 lung cancer cell growth. Among them, compound 6b was the most effective compound in inhibiting the proliferation of A549 cells.
Toll-like Receptor 5 Agonism Protects Mice from Radiation Pneumonitis and Pulmonary Fibrosis
Wang, Zhi-Dong,Qiao, Yu-Lei,Tian, Xi-Feng,Zhang, Xue-Qing,Zhou, Shi-Xiang,Liu, Hai-Xiang,Chen, Ying Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.9
Radiation pneumonitis and pulmonary fibrosis are the main complications with radiotherapy for thoracic neoplasms, directly limiting the efficient dose in clinical application and currently there are few medicines that effectively function as radioprotectants. However, a TLR5 agonist, CBLB502, was confirmed to have protective efficacy against hematopoietic and gastrointestinal radiation syndromes in mice and primates. This study points to a new direction for protection against thoracic radiation-induced pulmonary syndromes and skin injury by CBLB502. We utilized the TUNEL assay, pathological analysis and immunohistochemistry to obtain evidence thatCBLB502 could alleviate the occurrence of radiation pneumonitis and pulmonary fibrosis as well as radiation-induced skin injury. It may thus play a promising role in facilitating clinical radiotherapy of thoracic neoplasms.
Fall Detection Algorithm for the Elderly Based on Human Characteristic Matrix and SVM
WANG Rui-dong,ZHANG Yong-liang,DONG Ling-ping,LU Jia-wei,ZHANG Zhi-qin,HE Xia 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
Fall is one of the leading causes of injury and death for the elderly. Real-time fall detection is of great significance for the safety of the elderly. This paper proposes a coarse to fine fall detection algorithm based on Human characteristic matrix and Support Vector Machine (SVM). First, background subtraction and morphological processing are used to obtain more accurately human silhouette. Then, two human characteristic matrices are constructed based on Hu-moment invariant and the information of human body posture extracted from human silhouette and are used as features to train SVM classifier for fall detection. Experimental results indicate that the proposed algorithm can distinguish fall event from other movements such as squat, sitting down and back turning. Compared with other common methods, the proposed method can real-time and efficiently track the video with 18 frames per second.
Low Stratospheric Wind Measurement Using Mobile Rayleigh Doppler Wind LIDAR
Zhi-feng Shu,Xian-kang Dou,Hai-yun Xia,Dong-song Sun,Yan Han,Hyunki Cha,김덕현,Guo-cheng Wang,백성훈,Dong-dong Hu 한국광학회 2012 Current Optics and Photonics Vol.16 No.2
A mobile Rayleigh Doppler wind LIDAR at an eye-safe wavelength of 355 nm incorporating double-edge technique with triple-channel Fabry-Perot etalon is developed for wind measurement from 5to 40km. The structure of this LIDAR system is described. An intercomparsion experiment with rawinsonde is made, showing good agreement with expected measurement accuracy. A continuous observation of stratosphere wind field for several days with temporal resolution of 15 min and spatial resolution of 200 m from 5 to 40 km is presented, demonstrating the stability and robustness of the LIDAR. A stratospheric quasi-zero wind layer can be found at around 20 km with a direction change from east to west evident in the continuous observation.
Cui, Zhi-Wen,Xia, Ye,Ye, Yi-Wang,Jiang, Zhi-Mao,Wang, Ya-Dong,Wu, Jian-Ting,Sun, Liang,Zhao, Jun,Fa, Ping-Ping,Sun, Xiao-Juan,Gui, Yao-Ting,Cai, Zhi-Ming Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.7
The molecular mechanisms involved in the progression of clear cell renal cell carcinomas (ccRCCs) are still unclear. The aim of this study was to analyse the relationships between expression of RALYL and clinical characteristics. In 41 paired samples of ccRCCs and adjacent normal tissues, we used real-time qPCR to evaluate the expression of RALYL mRNA. RALYL protein levels were determined in 146 samples of ccRCC and 37 adjacent normal tissues by immunohistochemistry. Statistical analysis was used to explore the relationships between expression of RALYL and the clinical characteristics (gender, age, tumor size, T stage, N stage, M stage, survival times and survival outcome) in ccRCC. In addition, these patients were follow-up period 64 months (range: 4~116months) to investigate the influence on prognosis. We found significantly differences between ccRCC tissues and normal tissues (p<0.001, paired-sample t test) in mRNA levels of RALYL. Immunohistochemistry analyses in 146 ccRCC samples and 37 adjacent normal tissues showed significantly lower RALYL protein levels in ccRCC samples (${\chi}^2$-test, p<0.001), inversely correlating with tumour size (p=0.024), T stage (0.005), N stage (p<0.001) as well as M stage (p=0.019), but not age (p=0.357) and gender (p=0.348). Kaplan-Meier survival analysis demonstrated that people with lower level of RALYL expression had a poorer survival rate than those with a higher level of RALYL expression, significantly different by the log-rank test (p=0.011). Cox regression analysis indicated that RALYL expression (p=0.039), N stage (p=0.008) and distant metastasis (p<0.001) were independent prognosis factors for the overall survival of ccRCC patients. We demonstrated that the expression of RALYL was significantly low in ccRCC and correlated with a poor prognosis in a large number of clinical samples. Our findings showed that RALYL may be a potential therapeutic target as well as a poor prognostic factor.
Automatic cystocele severity grading in transperineal ultrasound by random forest regression
Ni, Dong,Ji, Xing,Wu, Min,Wang, Wenlei,Deng, Xiaoshuang,Hu, Zhongyi,Wang, Tianfu,Shen, Dinggang,Cheng, Jie-Zhi,Wang, Huifang Elsevier 2017 Pattern recognition Vol.63 No.-
<P><B>Abstract</B></P> <P>Cystocele is a woman disease that bladder herniates into vagina. Women with cystocele may have problem in urinating and higher risk of bladder infection. The treatment of cystocele highly depends on the severity. The cystocele severity is usually evaluated with the manual transperineal ultrasound measurement for the maximal distance between the bladder and the lower tip of symphysis pubis in the Valsalva maneuver. To improve the efficiency of the measurement, we propose a fully automatic scheme that can measure the distance between the two anatomic structures in each ultrasound image. The whole measurement scheme is realized with a two-phase random forest regression to infer the locations of the two structures in the images for the support of distance measurement. The experimental results suggest automatic distance measurements and the final grading by our random forest regression method are comparable to the measurements and grading scores from three medical doctors, and thus corroborate the efficacy of our method.</P> <P><B>Highlights</B></P> <P> <UL> <LI> First automatically computerized cystocele grading method on the transperineal ultrasound is developed in this study. </LI> <LI> The automatic cystocele grading on the transperineal ultrasound is realized with a two-phase random forest regression model. </LI> <LI> Auto-context features are helpful for our regression model to improve the cystocele grading results. </LI> </UL> </P>
Li, Xin,Wang, Yang,Li, Xing-Wang,Liu, Bao-Cheng,Zhao, Qing-Zhu,Li, Wei-Dong,Chen, Shi-Qing,Huang, Xiao-Ye,Yang, Feng-Ping,Wang, Quan,Wang, Jin-Fen,Xiao, Yan-Zeng,Xu, Yi-Feng,Feng, Guo-Yin,Peng, Zhi-Ha Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5
Colorectal cancer (CRC), now the third most common cancer across the world, is known to aggregate in families. USP7 is a very important protein with an important role in regulating the p53 pathway, which is critical for genomic stability and tumor suppression. We here genotyped eight SNPs within the USP7 gene and conducted a case-control study in 312 CRC patients and 270 healthy subjects in the Chinese Han population. No significant associations were found for any single SNP and CRC risk. Our data eliminate USP7 as a potential candidate gene towards for CRC in the Han Chinese population.
Zhi, De Juan,Feng, Na,Liu, Dong Ling,Hou, Rong Li,Wang, Mei Zu,Ding, Xiao Xia,Li, Hong Yu 대한약학회 2014 Archives of Pharmacal Research Vol.37 No.3
Although realgar bioleaching solution (RBS) has been proved to be a potential candidate for cancer therapy, the mechanisms of RBS anticancer are still far from being completely understood. Dosed with RBS in C. elegans, the multivulva phenotype resulting from oncogenic ras gain-of-function was inhibited in a dose dependent manner. It could be abrogated by concurrent treatment C. elegans with RBS and the radical scavenger DMSO. However, RBS could not induce DAF-16 nuclear translocation in TJ356 or the increase of HSP 16.2 expression in CL2070, which both could be aroused visible GFP fluorescent variation to represent for oxidative stress generation. Treatment C. elegans with superoxide anion generator paraquat, similar results were also obtained. Our results indicated that RBS suppress excessive activated ras by increasing reactive oxygen species (ROS) in C. elegans. Secondly, ROS induced by RBS significantly accumulated on a higher level inC. elegans with amutational ras than that with wild ras, thus leading to oxidative stress on ras gain-of-function background rather than on normal ras context. Our results firstly demonstrated that using C. elegans as amodel organism for evaluating prooxidant drug candidates for cancer therapy.
Indirect Determination of Cetirizine Hydrochloride by ICP-AES
Wang, Li-Sheng,Wei, Xiao-Ling,Gong, Qi,Jiang, Zhi-Liang,Li, Dong-Mei,Liang, Qing Korean Chemical Society 2011 Bulletin of the Korean Chemical Society Vol.32 No.2
Cetirizine hydrochloride reacted with $BiI_4^-$ in an acidic aqueous solution to form precipitate. After centrifugation, the atomic emission intensity of $Bi^{3+}$ contained in the supernatant solution was measured at the characteristic wavelength of 206.170 nm. The difference between the spectral signal intensity of the blank solution and that of the supernatant, ${\Delta}I$, was linearly related to the concentration of cetirizine hydrochloride. As a result, a new inductively coupled plasmaatomic emission spectrometric (ICP-AES) method was developed for the analysis of cetirizine hydrochloride. The linear range was from 27.7 to 184.8 $mg{\cdot}L^{-1}$, with a correlation coefficient (r) of 0.9961 and a detection limit of 9.6 $mg{\cdot}L^{-1}$. This method is simple and accurate, Without using toxic organic solvents, and is feasible for the quality control of cetirizine hydrochloride tablets and capsules.