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Lan-Qing Ma,Yan-Wu Guo,Hui-Li Guo,Xing Li,Li-Li Huang,Bo-Ning Zhang,Xiao-Bin Pang,Ben-Ye Liu,Hong Wang 한국식물생명공학회 2013 Plant biotechnology reports Vol.7 No.3
In our recent work (Ma et al., in Planta229(3):457–469, 2009a and 229(4):1077–1086, 2009b),two three-intron type III PKS genes, PcPKS1 and PcPKS2,were isolated from Polygonum cuspidatum Sieb. et Zucc. Phylogenetic and functional analyses revealed PcPKS1 is athree-intron chalcone synthase (CHS) gene, and PcPKS2 isfound to be a three-intron benzalacetone synthase (BAS)gene. The regular CHS encoded by a single intron genehave not been isolated and characterized from P. cuspidatum. In this work a further CHS with one intron (PcPKS3)and a stilbene synthase (STS) gene with three-intron(PcPKS5) were isolated and characterized by functionaland phylogenetic analyses. In comparison with PcPKS1, abifunctional enzyme with both CHS and BAS activity, theenzymatic product of recombinant PcPKS3 was naringenin,bis-noryangonin (BNY) and 4-coumaroyltriacetic acidlactone (CTAL) occurred as side products. The PcPKS5synthesized resveratrol and a trace amount of naringeninfrom p-coumaroyl-CoA. To our knowledge, PcPKS5 is thefirst reported three-intron STS gene in flowering plants. Inthis work, we speculated that this involved a possibleevolutionary route of plant-specific type III PKS superfamilyin P. cuspidatum.
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Xiao, Bing-Kun,Yang, Jian-Yun,Dong, Jun-Xing,Ji, Zhao-Shuai,Si, Hai-Yan,Wang, Wei-Lan,Huang, Rong-Qing Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.7
Background: Some recent clinical trials have been conducted to evaluate a combination of EGFR- TKI with chemotherapy for advanced NSCLC patients as second-line therapy, but the results on the efficacy of such trials are inconsistent. The aim of this meta-analysis was to evaluate the efficacy and safety of combination of EGFR-TKI and chemotherapy for patients with advanced NSCLC who failed first-line treatment. Materials and Methods: We searched relative trials from PubMed, EMBASE, ASCO Abstracts, ESMO Abstracts, Cochrane Library and Clinical Trials.gov. Outcomes analyzed were overall response rate (ORR), progression- free survival (PFS), overall survival (OS) and major toxicity. Results: Seven trails eventually were included in this meta-analysis, covering 1,168 patients. The results showed that the combined regimen arm had a significant higher ORR (RR 1.76 [1.16, 2.66], p=0.007) and longer PFS (HR 0.75 [0.66-0.85], p<0.00001), but failed to show effects on OS (HR 0.88 [0.68-1.15], p=0.36). In terms of subgroup results, continuation of EGFR-TKI in addition to chemotherapy after first-line EGFR-TKI resistance confered no improvement in ORR (RR 0.95 [0.68, 1.33], p=0.75) and PFS (HR 0.89[0.69, 1.15], p=0.38), and OS was even shorter (HR1.52 [1.05-2.21], p=0.03). However, combination therapy with EGFR-TKI and chemotherapy after failure of first-line chemotherapy significantly improved the ORR (RR 2.06 [1.42, 2.99], p=0.0002), PFS (HR 0.71 [0.61, 0.82], p<0.00001) and OS (HR 0.74 [0.62-0.88], p=0.0008), clinical benefit being restricted to combining EGFR-TKI with pemetrexed, but not docetaxel. Grade 3-4 toxicity was found at significantly higher incidence in the combined regimen arm. Conclusions: Continuation of EGFR-TKI in addition to chemotherapy after first-line EGFR-TKI resistance should be avoided. Combination therapy of EGFR-TKI and pemetrexed for advanced NSCLC should be further investigated for prognostic and predictive factors to find the group with the highest benefit of the combination strategy.
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Collaborative Plotting System Based on Web and Multi-Agent
Xiao-Lan Xie,Shun-Bai Huang,Xiu-juan Guo 보안공학연구지원센터 2016 International Journal of u- and e- Service, Scienc Vol.9 No.7
The traditional collaborative plotting system is a single user plot in which users are independent of each other, and the data can’t be shared among them. It can’t meet the requirements of multi-users to collaborative plot in the modern society. In this paper, we proposed multi-agent technology applying into the collaborative plotting system, and designed a collaborative plotting system based on web and multi-agent, which can solve the problem of real-time collaborative plotting for multi-users. At the same time, it provides the map editing interactive interface and realizes the dynamic exchange of the plotting information. Also, it supports a wide range of collecting effective plotting data, and realizes a new way of information acquisition. Experiments show that the system based on multi-agent can achieve fast and real-time cooperation under the Web environment, and its response time is short and the system performance is stable.
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Research on Scheduling Strategy based on Trust in Hybrid Cloud
Xiao-Lan Xie,Shun-Bai Huang,Xiu-juan Guo 보안공학연구지원센터 2016 International Journal of Grid and Distributed Comp Vol.9 No.8
Hybrid cloud can help companies to maximize the potentiality of IT infrastructure, so the hybrid cloud is increasingly popular in the market. Hybrid cloud scheduling has become one of the important issues which cloud providers face in the current. How to effectively and safely make hybrid cloud scheduling is one of the main research topics in the field of hybrid cloud. This paper introduces an effective hybrid cloud resource management model, and proposes a hybrid cloud resource scheduling strategy based on the particle swarm leapfrog algorithm and trust mechanism in order to solve the problems. The experimental results show that the hybrid cloud scheduling strategy is effective in terms of security and throughput.
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Xiao-Ling Zhong,Yi Dong,Wei Xu,Yu-Yuan Huang,Hui-Fu Wang,Tian-Song Zhang,Li Sun,Lan Tan,Qiang Dong,Jin-Tai Yu 대한뇌졸중학회 2021 Journal of stroke Vol.23 No.1
Background and Purpose: The present study aimed to compare the efficacy and tolerability of different blood pressure (BP)-lowering strategies. Methods: Randomized controlled trials that compared various antihypertensive treatments and stroke outcomes were included. Eligible trials were categorized into three scenarios: single or combination antihypertensive agents against placebos; single or combination agents against other agents; and different BP-lowering targets. The primary efficacy outcome was the risk reduction pertaining to strokes. The tolerability outcome was the withdrawal of drugs, owing to drug-related side effects (PROSPERO registration number CRD42018118454 [20/12/2018]). Results: The present study included 93 trials (average follow-up duration, 3.3 years). In the pairwise analysis, angiotensin-converting enzyme inhibitors (ACEis) and beta-blockers (BBs) were inferior to calcium channel blockers (CCBs) (odds ratio [OR], 1.123; 95% confidence interval [CI], 1.008 to 1.252) (OR, 1.261; 95% CI, 1.116 to 1.425) for stroke prevention, BB was inferior to angiotensin II receptor blockers (ARB) (OR, 1.361; 95% CI, 1.142 to 1.622), and diuretics were superior to ACEi (OR, 0.871; 95% CI, 0.771 to 0.984). The combination of ACEi+CCB was superior to ACEi+diuretic (OR, 0.892; 95% CI, 0.823 to 0.966). The network meta-analysis confirmed that diuretics were superior to BB (OR, 1.34; 95% CI, 1.11 to 1.58), ACEi+diuretic (OR, 1.47; 95% CI, 1.02 to 2.08), BB+CCB (OR, 2.05; 95% CI, 1.05 to 3.79), and renin inhibitors (OR, 1.87; 95% CI, 1.25 to 2.75) for stroke prevention. Regarding the tolerability profile, the pairwise analysis revealed that ACEi was inferior to CCB and less tolerable, compared to the other treatments. Conclusions: Monotherapy using diuretics, CCB, or ARB, and their combinations could be employed as first-line treatments for stroke prevention in terms of efficacy and tolerability.
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Therapeutic inhibition of SGK1 suppresses colorectal cancer
Xuchun Liang,Chunling Lan,Guanming Jiao,Wencheng Fu,Xuesha Long,Yu An,Kejin Wang,Jinzhe Zhou,Ting Chen,Yongqin Li,Jiahong Xu,Qi Huang,Bin Xu,Junjie Xiao 생화학분자생물학회 2017 Experimental and molecular medicine Vol.49 No.-
Colorectal cancer (CRC) is one of the leading causes of death worldwide. Thus, the development of new therapeutic targets for CRC treatment is urgently needed. SGK1 is involved in various cellular activities, and its dysregulation can result in multiple cancers. However, little is known about its roles and associated molecular mechanisms in CRC. In present study, we found that SGK1 was highly expressed in tumor tissues compared with peri-tumor samples from CRC patients. In vitro experiments revealed that SGK1 overexpression promoted colonic tumor cell proliferation and migration and inhibited cell apoptosis induced by 5-fluorouracil (5-FU), while SGK1 shRNA and inhibitors showed the inverse effects. Using CRC xenograft mice models, we demonstrated that knockdown or therapeutic inhibition of SGK1 repressed tumor cell proliferation and tumor growth. Moreover, SGK1 inhibitors increased p27 expression and promoted p27 nuclear accumulation in colorectal cancer cells, and p27 siRNAs could attenuate the repression of CRC cell proliferation induced by SGK1 inhibitors. Collectively, SGK1 promotes colorectal cancer development via regulation
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An Optimized Motion Estimation Algorithm and Application in the FRUC System
Min-Jun Deng,Ping Gan,Zhuo Chen,Xiao-Qing Shen,Dong-Lian Li,Ming-Yan Yu,Yu Zhang,Cai -Lan Zeng,He Huang 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.8
Based on the optimized three-step search algorithm. Combining threshold judgment as well as local full search, a more efficient motion estimation algorithm is proposed. The algorithm not only inherited the traditional three-step algorithm’s quick speed but also kept the advantages of a relatively small amount of calculation, besides it can avoid the local optimum problem in the three-step search algorithm (TSS). In addition, the algorithm combined with the threshold judgment and local full search algorithm, so it also maintains satisfactory visual quality. Comparing the algorithm with TSS and local full search algorithm (LFS). The algorithm has great performance in search points and peak signal-to-noise ratio. Experimental results show that compared with LFS, search points drop by 34.61% ~ 54.47% .While compared with the TSS, the search points only rise by 6.15% ~ 12.21%. The average PSNR of proposed Algorithm is 0.24dB higher than LFS and 3.30dB higher than TSS.
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Miao-miao Luo,Lu-jing Ren,Sheng-lan Chen,Xiao-jun Ji,He Huang 한국생물공학회 2016 Biotechnology and Bioprocess Engineering Vol.21 No.6
Vitamin K2 (menaquinone or MK) plays an important role in blood clotting, cardiovascular disease, and anti-osteoporosis. A novel bacterial strain was isolated and identified as Bacillus natto based on 16SrDNA sequencing and LC-MS analysis. The objective of this study was to improve the extraction efficiency and productivity of MK-7 from B. natto. Acid-heating method efficiently disrupted B. natto cells for MK-7 extraction. Bacillus natto had a wide range of pH (5.0 ~ 9.0) for optimal growth. Its MK-7 yield was increased when rotation speed was increased to 200 rpm. The highest MK-7 yield was obtained when glycerol and soy peptone were used in the growth media. Batch fermentation was subsequently tested in 5 L bioreactor, which gave a high productivity of MK-7 (at 0.60 mg/L/h). A positive correlation between MK-7 yield and sporulation ratio was also found. This study provides valuable information on the extraction and production of menaquinone-7 from B. natto under submerged fermentation condition.
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