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| 1 | Hypoxic preconditioning attenuates hypoxia/reoxygenation-induced apoptosis in mesenchymal stem cells显示文摘目的: 间充质的干细胞(MSC ) 是心脏的代替治疗的一个有希望的候选人。然而,因为差的血供给, ischemia-reperfusion,和煽动性的因素,移植 MSC 的多数乐意地在移植以后被失去。我们试图在 MSC.Methods 的 hypoxia/reoxygenation-induced apoptosis 上学习组织缺氧 preconditioning ( HPC )的效果: MSC 的三代被划分成 6 个组包括正常的组, hypoxia-reoxygenation ( H/R )组, cyclosporine A ( CsA ),和 HPC 10 min , 20 min ,并且 30 min 组织。 apoptotic 索引,房间生存能力, mitochondrial 膜电位, Bcl-2 和 bax 的易位,细胞外的调整激酶(英皇家空军之阶级最低之兵), Akt ,组织缺氧可诱导的因素 1-alpha ,并且脉管的内皮生长因素( VEGF )在 H/R treatment.Results 以后被测试: HPC 减少了 apoptotic 索引并且增加了 H/R.Moreover 导致的生存能力, HPC 显著地稳定了 mitochondrial 膜电位在调整 Bcl-2 和 VEGF 表达式上面,并且增加了英皇家空军之阶级最低之兵和 Akt.As 的磷酸化积极控制, CsA 有象 HPC 的一样的函数,除了支持英皇家空军之阶级最低之兵和 Akt 磷酸化并且在调整 VEGF.Conclusion 上面: HPC 对 H/R 经由稳定 mitochondrial 膜电位导致的 MSC apoptosis 有保护的效果在调整 Bcl-2 和 VEGF 上面,并且支持英皇家空军之阶级最低之兵和 Akt phosphorylation.HPC 为新奇干细胞protective 策略的开发有含意。 | Jian-an WANG Tie-long CHEN Jun JIANG Heng SHI Chun GUI Rong-hua LUO Xiao-jie XIE Mei-xiang XIANG Xing ZHANG | 2008 | Acta Pharmacologica Sinica2008，29，1： | 25 |
| 2 | Effect of Substructure on Toughness of Lath Martensite/Bainite Mixed Structure in Low-Carbon Steels显示文摘The quantitative analysis of substructure in the martensite/bainite mixed structure, which is obtained from low-carbon NiCrMoV steels under different cooling conditions, was made by means of optical microscope (OM), scanning electron microscope (SEM), electron backscatter diffraction (EBSD), and transmission electron microscope (TEM), in order to research the effect on toughness. The test results indicate that the toughness of the steel is enhanced with the decrease in the packet and block size under the condition of the same prior austenite grain size mixed with different ratios of martensite and bainite while the lath width is about 0.38 μm. The calculation shows that both the packet and block boundaries have the same hindering effect on crack extension. Furthermore, the effect of the block width on impact energy is much larger than that of the packet. Therefore, the block can be used as microstructural substructure to affect the toughness in low-carbon martensite steels, suggesting that the block size is 'the effective grain size' for controlling toughness. | LUO Zhi-jun SHEN Jun-chang SU Hang DING Yue-hua YANG Cai-fu ZHU Xing | 2010 | Journal of Iron and Steel Research(International)2010，17，11： | 24 |
| 3 | Relationships of Inflammatory Factors and Risk Factors with Different Target Organ Damage in Essential Hypertension Patients显示文摘 | Chun-Lin Lai Jin-Ping Xing Xiao-Hong Liu Jie Qi Jian-Qiang Zhao You-Rui Ji Wu-Xiao Yang Pu-Juan Yan Chun-Yan Luo Lu-Fang Ruan | 2017 | Chinese Medical Journal2017，，11： | 23 |
| 4 | Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China. | Kaiwen Li Tianxin Lin 无 Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang | 2015 | Asian Journal of Urology2015，2，2： | 21 |
| 5 | Growth-inhibiting effects of taxol on human liver cancer in vitro and in nude mice显示文摘AIM To investigate the effects of taxol onSMMC-7721 human hepatoma and itsmechanisms.METHODS In vitro cell growth was assessedby trypan blue exclusion method.Experimentalhepatoma model was established by seedingSMMC-7721 cells subcutaneously into Balb/c(nu/nu)nude mice.In vivo tumor growth wasdetermined by measurement of tumor diameterwith Vernier calipers.The syntheses of DNA,RNA and protein were analyzed by incorporationof ~3H-thymidine,~3H-uridine and ~3H-leucinerespectively.Using light and electronmicroscopes to observe the morphologicalchanges of cells including mitosis andapoptosis.RESULTS Taxol was effective against SMMC-7721 human hepatoma cell growth in the rangesof 2.5 nmol/L-10 nmol/L with mitotic arrestand apoptosis in vitro.DNA,RNA and proteinsyntheses in cells were also obviouslysuppressed by in vitro treatment of taxol for72 h.Taxol at 2.5 nmol/L reduced ~3H-thymidineuptake to about 34% of the control value(P<0.05).Increasing the dose of taxol to20 nmol/L resulted in a greater decrease in ~3H-thymidine incorporation to 60% of the controlvalue(P<0.01).At a concentration of 20 nmol/L,the ~3H-uridine and ~3H-leucine uptakeswere reduced to 52%(P<0.05)and 63%(P<0.01),respectively.In vivo,taxolsignificantly inhibited SMMC-7721 tumor growthat 10 mg/kg,i.p.,once daily for 10 d.A morethan 90% decrease in tumor volume wasobserved by day 11(P<0.01)similarly withmitotic arrest and cell apoptosis.CONCLUSION Taxol has a marked anticanceractivity in SMMC-7721 human hepatoma both invitro and in nude mice.Its mechanisms might beassociated with mitotic arrest,subsequently,apoptosis of the hepatoma cells.No obvioustoxicity was observed with in vivoadministration of taxoi. | Jin Hui Yuan Ru Ping Zhang Ru Gang Zhang Li Xia Guo Xing Wang Wang Dan Luo Yong Xie Hong Xie | 2000 | World Journal of Gastroenterology2000，6，2： | 18 |
| 6 | Porphyrin-like Fe-N4 sites with sulfur adjustment on hierarchical porous carbon for different rate-determining steps in oxygen reduction reaction显示文摘We developed a strategy based on coordination polymer to synthesize singleatom site Fe/N and S-codoped hierarchical porous carbon (Fe1/N,S-PC).The as-obtained Fe1/N,S-PC exhibited superior oxygen reduction reaction (ORR) performance with a half-wave potential (Ev2,0.904 V vs.RHE) that was better than that of commercial Pt/C (E1/2,0.86 V vs.RHE),single-atom site Fe/N-doped hierarchical porous carbon (Fe1/N-PC) without S-doped (E1/2,0.85 V vs.RHE),and many other nonprecious metal catalysts in alkaline medium.Moreover,the Fe1/N,S-PC revealed high methanol tolerance and firm stability.The excellent electrocatalytic activity of Fe1/N,S-PC is attributed to the synergistic effects from the atomically dispersed porphyrin-like Fe-N4 active sites,the heteroatom codoping (N and S),and the hierarchical porous structure in the carbon materials.The calculation based on density functional theory further indicates that the catalytic performance of Fe1/N,S-PC is better than that of Fe1/N-PC owing to the sulfur doping that yielded different rate-determining steps. | Konglin Wu Xin Chen Shoujie Liu Yuan Pan Weng-Chon Cheong Wei Zhu Xing Cao Rongan Shen Wenxing Chen Jun LUO Wensheng Yan Lirong Zheng Zheng Chen Dingsheng Wang Qing Peng Chen Chen Yadong Li | 2018 | Nano Research2018，11，12： | 18 |
| 7 | Cyclooxygenase 2 polymorphism and colorectal cancer:-765G>C variant modifies risk associated with smoking and body mass index显示文摘AIM:To explore whether cyclooxygenase 2(COX-2) -765G>C polymorphism is associated with susceptibility of colorectal cancer(CRC)and to evaluate the risk of colorectal cancer in relation to environmental exposures and polymorphism. METHODS:We conducted a case-control study of 137 patients with colorectal cancer and 199 cancer- free controls in northeast China.Multivariate logistic regression analysis was performed to calculate the adjusted odds ratio(OR)and 95% confidence interval (95%CI). RESULTS:The-765G>C polymorphism was not independently associated with CRC risk.However,risk associated with the polymorphism differed by smoking and body mass index(BMI).Smoking and BMI associated risks were stronger among those with-765GG genotype, showing that smokers had a 2.682-fold greater risk of CRC than nonsmokers(51/43 vs 68/126,P=0.006). Compared to those with a normal body mass index(BMI 18.5-22.9),those with overweight(BMI 23-24.9)had a 3.909-fold higher risk of CRC(OR=3.909,95% CI= 2.081-7.344;P<0.001),while those with obesity(BMI >25)had a 2.031-fold higher risk of CRC(OR=1.107, 95% CI=1.107-3.726;P=0.022). CONCLUSION:Although COX-2-765G>C polymorphismis not associated with an increased risk of CRC,-765GG genotype appears to be related to an increased risk in the presence of smoking and higher BMI. | Li-Li Xing Zhen-Ning Wang Yong Zhang Ying-Ying Xu Juan Li Li Jiang Yang Luo Xue Zhang | 2008 | World Journal of Gastroenterology2008，14，11： | 17 |
| 8 | Pretreatment HIV drug resistance in adults initiating antiretroviral therapy in China,2017显示文摘Background:After the scale-up of antiretroviral therapy(ART)for HIV infected people,increasing numbers of patients have pretreatment drug resistance(PDR).In this study,the prevalence of PDR was evaluated in adults initiating antiretroviral therapy in China.Methods:Blood samples were obtained from 1943 patients who initiated antiretroviral therapy(ART)in 2017 from 13 provinces or cities in China.Pol sequences were used to analyze drug resistance and construct transmission networks.Logistic regression model was used to estimate the potential factors associated with PDR.Results:In total,1711 eligible patients(76.0%male;87.8%aged≥25 years)were included,of which 117(6.8%)had PDR.The highest rates of PDR were 12.2%in Liangshan Prefecture of Sichuan and 9.3 and 8.9%in Dehong and Lincang Prefecture of Yunnan.A multivariate logistic regression analysis revealed that PDR was significantly higher among intravenous drug users(adjusted Odds Ratio(aOR)=2.64,95%CI:1.57–4.44)and individuals from Liangshan,Dehong,and Lincang(aOR=2.04,95%CI:1.26–3.30).In total,754 sequences were used to generate 164 transmission networks.Five transmission networks had two or three sequences containing the same mutations,two networks contained subjects from Liangshan,and one network contained subjects from Dehong.Conclusions:Overall,the PDR prevalence was moderate,with a particularly high prevalence in areas with severe HIV epidemics.These results indicate the importance of continuous PDR monitoring in patients initiating antiretroviral therapy. | Rui-Hua Kang Shu-Jia Liang Yan-Ling Ma Shu Liang Lin Xiao Xin-Hui Zhang Hong-Yan Lu Xiao-Qin Xu Shui-Bin Luo Xiao-Guang Sun Lin Chen Jian-Mei He Guo-Hui Wu Ling-Jie Liao Hui Xing Yi-Ming Shao Yu-Hua Ruan | 2020 | Infectious Diseases of Poverty2020，9，3： | 17 |
| 9 | Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘 | ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao | 2013 | Chinese Medical Journal2013，，12： | 16 |
| 10 | Management of granulomatous lobular mastitis: an international multidisciplinary consensus(2021 edition)显示文摘Granulomatous lobular mastitis(GLM) is a rare and chronic benign inflammatory disease of the breast. Difficulties exist in the management of GLM for many front-line surgeons and medical specialists who care for patients with inflammatory disorders of the breast. This consensus is summarized to establish evidence-based recommendations for the management of GLM. Literature was reviewed using PubMed from January 1, 1971 to July 31, 2020. Sixty-six international experienced multidisciplinary experts from 11 countries or regions were invited to review the evidence.Levels of evidence were determined using the American College of Physicians grading system, and recommendations were discussed until consensus. Experts discussed and concluded 30 recommendations on historical definitions,etiology and predisposing factors, diagnosis criteria, treatment, clinical stages, relapse and recurrence of GLM. GLM was recommended as a widely accepted definition. In addition, this consensus introduced a new clinical stages and management algorithm for GLM to provide individual treatment strategies. In conclusion, diagnosis of GLM depends on a combination of history, clinical manifestations, imaging examinations, laboratory examinations and pathology.The approach to treatment of GLM should be applied according to the different clinical stage of GLM. This evidencebased consensus would be valuable to assist front-line surgeons and medical specialists in the optimal management of GLM. | Qian-Qian Yuan Shu-Yuan Xiao Omar Farouk Yu-Tang Du Fereshte Sheybani Qing Ting Tan Sami Akbulut Kenan Cetin Afsaneh Alikhassi Rami Jalal Yaghan Irmak Durur-Subasi Fatih Altintoprak Tae Ik Eom Fatih Alper Mustafa Hasbahceci David Martínez-Ramos Pelin Seher Oztekin Ava Kwong Cedric W.Pluguez-Turul Kirstyn EBrownson Shirish Chandanwale Mehran Habib Liu-Yi Lan Rui Zhou Xian-Tao Zeng Jiao Bai Jun-Wen Bai Qiong-Rong Chen Xing Chen Xiao-Ming Zha Wen-Jie Dai Zhi-Jun Dai Qin-Yu Feng Qing-Jun Gao Run-Fang Gao Bao-San Han Jin-Xuan Hou Wei Hou Hai-Ying Liao Hong Luo Zheng-Ren Liu Jing-Hua Lu Bin Luo Xiao-Peng Ma Jun Qian Jian-Yong Qin Wei Wei Gang Wei Li-Ying Xu Hui-Chao Xue Hua-Wei Yang Wei-Ge Yang Chao-Jie Zhang Fan Zhang Guan-Xin Zhang Shao-Kun Zhang Shu-Qun Zhang Ye-Qiang Zhang Yue-Peng Zhang Sheng-Chu Zhang Dai-Wei Zhao Xiang-Min Zheng Le-Wei Zheng Gao-Ran Xu Wen-Bo Zhou Gao-Song Wu | 2022 | Military Medical Research2022，9，4： | 13 |
| 11 | Identification of immunoreactive proteins of Brucella melitensis by immunoproteomics显示文摘Infection with Brucella causes brucellosis, a chronic disease in humans, which induces abortion and sterility in livestock. Among the different Brucella species, Brucella melitensis is considered the most virulent and is the predominant species associated with outbreaks in China. To date, no safe human vaccine is available against Brucella infection. The currently used live vaccines against Brucella in livestock induce antibodies that interfere with the diagnosis of field infection in vaccinated animals, which is harmful to eradication programs. However, there is as yet no complete profile of immunogenic proteins of B. melitensis. Towards the development of a safer, equally efficacious, and field infection-distinguishable vaccine, we used immunoproteomics to identify novel candidate immunogenic proteins from B. melitensis M5. Eighty-eight immunoreactive protein spots from B. melitensis M5 were identified by Western blotting and were assigned to sixty-one proteins by mass spectrometry, including many new immunoreactive proteins such as elongation factor G, F0F1 ATP synthase subunit beta, and OMP1. These provide many candidate immunoreactive proteins for vaccine development. | ZHAO ZhongPeng YAN Fang JI WenHui LUO DeYan LIU Xin XING Li DUAN YueQiang YANG PengHui SHI XiuMin LI Zhong WANG XiLiang | 2011 | Science China(Life Sciences)2011，54，9： | 12 |
| 12 | Matrix metalloproteinase-9-1562C>T polymorphism may increase the risk of lymphatic metastasis of colorectal cancer显示文摘AIM: To explore the role of the matrix metalloproteinase-9 (MMP-9) polymorphism in colorectal cancer (CRC) in a northeast Chinese population. METHODS: Genotyping of MMP-9 -1562C>T and 279R>Q polymorphisms was carried out on blood samples from 137 colorectal cancer patients and 199 controls using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Multivariate logistic regression models were used to calculate adjusted odds ratios (OR) and 95% confidence intervals (95% CI). RESULTS: The distribution of MMP-9 -1562C>T and 279 R>Q genotype was not significantly associated with the risk of CRC. However, the risk of llymph node metastasis of CRC was increased in patients with the -1562T allele (OR = 2.601; 95% CI = 1.160-5.835; P = 0.022). The frequency of MMP-9 279RR + RQ genotype was higher than the QQ genotype among CRC patients younger than sixty years old (OR = 0.102; 95% CI = 0.013-0.812; P = 0.012). CONCLUSION: Our results indicated that the MMP-9-1562C>T polymorphism affects lymph node metastasis of CRC. In addition, the MMP-9 279R allele may lead to a younger age of onset of colorectal cancer. | Li-Li Xing Zhen-Ning Wang Li Jiang Yong Zhang Ying-Ying Xu Juan Li Yang Luo Xue Zhang | 2007 | World Journal of Gastroenterology2007，13，34： | 12 |
| 13 | Nissen fundoplication vs proton pump inhibitors for laryngopharyngeal reflux based on p H-monitoring and symptom-scale显示文摘AIM To compare the outcomes between laparoscopic Nissen fundoplication(LNF)and proton pump inhibitors(PPIs)therapy in patients with laryngopharyngeal reflux(LPR)and typeⅠhiatal hernia diagnosed by oropharyngeal p H-monitoring and symptom-scale assessment.METHODS From February 2014 to January 2015,70 patients who were diagnosed with LPR and type I hiatal hernia and referred for symptomatic assessment,oropharyngeal p H-monitoring,manometry,and gastrointestinal endoscopy were enrolled in this study.All of the patients met the inclusion criteria.All of the patients underwent LNF or PPIs administration,and completed a2-year follow-up.Patients’baseline characteristics and primary outcome measures,including comprehensive and single symptoms of LPR,PPIs independence,and satisfaction,and postoperative complications were assessed.The outcomes of LNF and PPIs therapy were analyzed and compared. RESULTS There were 31 patients in the LNF group and 39patients in the PPI group.Fifty-three patients(25 in the LNF group and 28 in the PPI group)completed reviews and follow-up.Oropharyngeal p H-monitoring parameters were all abnormal with high acid exposure,a large amount of reflux,and a high Ryan score,associated reflux symptom index(RSI)score.There was a significant improvement in the RSI and LPR symptom scores after the 2-year follow-up in both groups(P<0.05),as well as typical symptoms of gastroesophageal reflux disease.Improvement in the RSI(P<0.005)and symptom scores of cough(P=0.032),mucus(P=0.011),and throat clearing(P=0.022)was significantly superior in the LNF group to that in the PPI group.After LNF and PPIs therapy,13 and 53 patients achieved independence from PPIs therapy(LNF:44.0%vs PPI:7.14%,P<0.001)during follow-up,respectively.Patients in the LNF group were more satisfied with their quality of life than those in the PPI group(LNF:62.49±28.68 vs PPI:44.36±32.77,P=0.004).Body mass index was significantly lower in the LNF group than in the PPI group(LNF:22.2±3.1kg/m^2 vs PPI:25.1±2.9 kg/m^2,P=0.001).CONCLUSION Diagnosis of LPR should be assessed with oropharyngeal p H-monitoring,manometry,and the symptom-scale.LNF achieves better improvement than PPIs for LPR with type I hiatal hernia. | Chao Zhang Zhi-Wei Hu Chao Yan Qiong Wu Ji-Min Wu Xing Du Dian-Gang Liu Tao Luo Fei Li Zhong-Gao Wang | 2017 | World Journal of Gastroenterology2017，23，19： | 12 |
| 14 | Bone marrow mesenchymal stem cell transplantation combined with perindopril treatment attenuates infarction remodelling in a rat model of acute myocardial infarction显示文摘Objective: This study was performed to evaluate whether implantation of mesenchymal stem cell (MSC) would reduce left ventricular remodelling from the molecular mechanisms compared with angiotensin-converting enzyme inhibitors (ACEIs) perindopril into ischemic myocardium after acute myocardial infarction. Methods: Forty rats were divided into four groups: control, MSC, ACEI, MSC+ACEI groups. Bone marrow stem cell derived rat was injected immediately into a zone made ischemic by coronary artery ligation in MSC group and MSC+ACEI group. Phosphate-buffered saline (PBS) was injected into control group. Perindopril was administered p.o. to ACEI group and MSC+ACEI group. Six weeks after implantation, the rats were killed and heart sample was collected. Fibrillar collagen was observed by meliorative Masson’s trichome stain. Western Blotting was employed to evaluate the protein expression of matrix metalloproteinase (MMP)-2, matrix metalloproteinase (MMP)-9 in infarction zone. The transcriptional level of MMP2, MMP9 and tissue inhibitor of matrix metalloproteinase (TIMP)-1 in infarction area was detected by reverse transcriptase PCR (RT-PCR) analysis. Results: The fibrillar collagen area, the protein expression of MMP2, MMP9 and the transcriptional level of MMP2, MMP9 mRNA in infarction zone reduced in MSC group, ACEI group, and MSC+ACEI group. No significant difference was detected in the expression of TIMP1 mRNA among the 4 groups. Conclusion: Both MSC and ACEI could reduce infarction remodelling by altering collagen metabolism. | WANG Jian-an LUO Rong-hua ZHANG Xing XIE Xiao-jie HU Xin-yang HE Ai-na CHEN Jie LI Jia-hui | 2006 | Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2006，7，8： | 11 |
| 15 | Artificial intelligence in drug design显示文摘Thanks to the fast improvement of the computing power and the rapid development of the computational chemistry and biology,the computer-aided drug design techniques have been successfully applied in almost every stage of the drug discovery and development pipeline to speed up the process of research and reduce the cost and risk related to preclinical and clinical trials.Owing to the development of machine learning theory and the accumulation of pharmacological data, the artificial intelligence(AI) technology, as a powerful data mining tool, has cut a figure in various fields of the drug design, such as virtual screening,activity scoring, quantitative structure-activity relationship(QSAR) analysis, de novo drug design, and in silico evaluation of absorption, distribution, metabolism, excretion and toxicity(ADME/T) properties. Although it is still challenging to provide a physical explanation of the AI-based models, it indeed has been acting as a great power to help manipulating the drug discovery through the versatile frameworks. Recently, due to the strong generalization ability and powerful feature extraction capability,deep learning methods have been employed in predicting the molecular properties as well as generating the desired molecules,which will further promote the application of AI technologies in the field of drug design. | Feisheng Zhong Jing Xing Xutong Li Xiaohong Liu Zunyun Fu Zhaoping Xiong Dong Lu Xiaolong Wu Jihui Zhao Xiaoqin Tan Fei Li Xiaomin Luo Zhaojun Li Kaixian Chen Mingyue Zheng Hualiang Jiang | 2018 | Science China(Life Sciences)2018，61，10： | 10 |
| 16 | General structure design and field experiment of pneumatic rice direct-seeder显示文摘In order to meet the requirement of field direct seeding for super hybrid rice:1-3 seeds per hill,a pneumatic rice direct-seeder with six seeding metering devices was designed.Transmission system of pneumatic rice direct-seeder and seed metering device were analyzed in this study.And the pipeline structure and vortex pump were designed and selected.The pressure distribution of the pipeline was tested.The pressure value of each sub-pipeline under the conditions of different main pipeline pressure value was obtained and the reasons for pressure loss were analyzed.The results showed that the variation coefficient between sub-pipelines was less than 5%.The pipeline pressure could be evenly distributed.Further,the field experiments were carried out on super hybrid rice Peizataifeng using two-factor testing,by which the effects of different negative pressure and different forward speed(namely,rotational speed of suction plate)for seeding precision were studied.It found that:(1)the optimal negative pressure was 2 kPa;(2)under the optimal negative pressure,the probabilities of 1-3 seeds per hill for the direct-seeder were 93.41%,95.47%and 97.50%,respectively,when the forward speed of the direct-seeded was high,medium and low speed;(3)the probability of empty hole was less than 2%,which satisfied the field direct seeding requirements of super hybrid rice.Additionally,hill spacing was measured,and the factors affecting the hill spacing were analyzed.The results showed that the fluctuation of hill spacing in the small range will not affect the seeding effect.In this study,a new type of pneumatic rice direct-seeder was designed.The main working components were tested and analyzed.The best parameters of field work were obtained.It provides the basis for the field application of the pneumatic rice precision seeder. | Xing He Wang Zaiman Luo Xiwen Cao Xiaoman Liu Chunbo Zang Ying | 2017 | International Journal of Agricultural and Biological Engineering2017，10，6： | 10 |
| 17 | SHRIMP zircon age for a K-bentonite in the top of the Laobao Formation at the Pingyin section,Guizhou,South China显示文摘The Lower Cambrian on the Yangtze Platform in South China(internationally equivalent to the Nerreneuvian and 2nd series of the Cambrian)is valuable for understanding the early evolution of life,the global biogeochemical circles,and the major changes of the ocean.In particular,a precise radiometric calibration of the Lower Cambrian of this region is a critical realm in its multidisciplinary studies.A SHRIMP U-Pb geochronology study of the K-bentonite in the topmost Laobao Formation at the Pingyin section,Guizhou,South China yielded an age of 536±5 Ma(MSWD=0.75),suggesting that the K-bentonite here can be correlated with the intensely studied K-bentonite within the middle Zhongyicun Member(Bed 5)of the Zhujiaqing Formation at the Meishucun section in Yunnan.Such a regional correlation result reveals that the Bed 5 K-bentonite also extends into deeper-water environments rather than being deposited merely in the shallow platform interior of the Yangtze Platform.The age of the K-bentonite at the Pingyin section also implies that its overlying polymetallic Ni-Mo layer should be younger than 536±5 Ma.Hence the previous placement of the Precambrian/Cambrian boundary at this layer is inappropriate.Combined with the results of stratigraphic correlations,it is suggested that the K-bentonites in the middle Zhongyicun Member of the Zhujiaqing Formation(or the equivalents)and the base of the Shiyantou Formation(or its equivalents),together with the polymetallic Ni-Mo layer,serve as three important marker beds.Their self-consistent radiometric ages have established an improved geochronologic framework for the Lower Cambrian in South China. | ZHOU MingZhong LUO TaiYi LIU ShiRong QIAN ZhiKuan XING LeCai | 2013 | Science China Earth Sciences2013，56，10： | 10 |
| 18 | A new dynamic pushback control method for reducing fuel-burn costs: Using predicted taxi-out time显示文摘Long departure-taxi-out time leads to significant airport surface congestion, fuel-burn costs, and excessive emissions of greenhouse gases. To reduce these undesirable effects, a Predicted taxi-out time-based Dynamic Pushback Control(PDPC) method is proposed. The implementation of this method requires two steps: first, the taxi-out times for aircraft are predicted by the leastsquares support-vector regression approach of which the parameters are optimized by an introduced improved Firefly algorithm. Then, a dynamic pushback control model equipped with a linear gate-hold penalty function is built, along with a proposed iterative taxiway queue-threshold optimization algorithm for solving the model. A case study with data obtained from Beijing International airport(PEK) is presented. The taxi-out time prediction model achieves predictive accuracy within 3 min and 5 min by 84.71% and 95.66%, respectively. The results of the proposed pushback method show that total operation cost and fuel-burn cost achieve a 14.0% and 21.1%reduction, respectively, as compared to the traditional K-control policy.(3) From the perspective of implementation, using PDPC policy can significantly reduce the queue length in taxiway and taxi-out time. The total operation cost and fuel-burn cost can be curtailed by 37.2% and 52.1%,respectively, as compared to the non-enforcement of any pushback control mechanism. These results show that the proposed pushback control model can reduce fuel-burn costs and airport surface congestion effectively. | Guan LIAN Yaping ZHANG Zhiwei XING Qian LUO Shaowu CHENG | 2019 | Chinese Journal of Aeronautics2019，32，3： | 10 |
| 19 | Short Panicle 3 controls panicle architecture by upregulating APO2/RFL and increasing cytokinin content in rice显示文摘Inflorescence architecture is a major determinant of spikelet numbers per panicle, a key component of grain yield in rice. In this study, Short Panicle 3(SP3) was identified from a short panicle 3(sp3) mutant in which T-DNA was inserted in the promoter of SP3, resulting in a knockdown mutation. SP3 encodes a DNA binding with one finger(Dof) transcriptional activator. Quantitative real time(q RT)-PCR and RNA in situ hybridization assays confirmed that SP3 is preferentially expressed in the young rice inflorescence, specifically in the branch primordial regions. SP3 acts as a negative regulator of inflorescence meristem abortion by upregulating APO2/RFL. SP3 both up-and downregulates expression of genes involved in cytokinin biosynthesis and catabolism, respectively. Consequently, cytokinin concentrations are decreased in young sp3 panicles, thereby leading to small panicles having fewer branches and spikelets. Our findings support a model in which SP3 regulates panicle architecture by modulating cytokinin homeostasis. Potential applications to rice breeding, through gene-editing of the SP3 promoter are assessed. | Yong Huang Xufeng Bai Meifang Luo Yongzhong Xing | 2019 | Journal of Integrative Plant Biology2019，61，9： | 10 |
| 20 | Current Perspective in the Discovery of Anti-aging Agents from Natural Products显示文摘Aging is a process characterized by accumulating degenerative damages,resulting in the death of an organism ultimately.The main goal of aging research is to develop therapies that delay age-related diseases in human.Since signaling pathways in aging of Caenorhabditis elegans(C.elegans),fruit flies and mice are evolutionarily conserved,compounds extending lifespan of them by intervening pathways of aging may be useful in treating age-related diseases in human.Natural products have special resource advantage and with few side effect.Recently,many compounds or extracts from natural products slowing aging and extending lifespan have been reported.Here we summarized these compounds or extracts and their mechanisms in increasing longevity of C.elegans or other species,and the prospect in developing antiaging medicine from natural products. | Ai-Jun Ding Shan-Qing Zheng Xiao-Bing Huang Ti-Kun Xing Gui-Sheng Wu Hua-Ying Sun Shu-Hua Qi Huai-Rong Luo | 2017 | Natural Products and Bioprospecting2017，7，5： | 9 |
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