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| 1 | A Survey of 16 Rare Earth Elements in the Major Foods in China显示文摘Objective The aim of this survey was to inves gate the level of contamina on of the most consumed foods in China with 16 rare earth elements (REEs),and to provide the basic data for establishing and revising food safety standards for REEs.Methods Sixteen REEs in foods were measured by induc vely coupled plasma-mass spectrometry (ICP-MS) in the labs of the Centers for Disease Control and Preven on of four provinces and two municipali es,during 2009-2010.Results 1 231 samples were analyzed and 19 121 concentra on data of 16 REEs were collected.The REEs levels in the inves gated foods varied significantly.The concentra ons of cerium (Ce),dysprosium (Dy),y rium (Y),lanthanum (La),and neodymium (Nd) were rela vely high,while the remaining eleven REEs were at low levels.The mean values of total rare earth element oxides (REOs) in cereals,fresh vegetables,fresh aqua c products,fresh meats and eggs varied from 0.052 mg/kg to 0.337 mg/kg.Conclusion 16 REEs in the major foods were at very low contamina on levels in the inves gated regions. | JIANG Ding Guo YANG Jie ZHANG Shuo YANG Da Jin | 2012 | Biomedical and Environmental Sciences2012,25,3: | 28 |
| 2 | APC and K-ras gene mutation in aberrant crypt foci of human colon显示文摘AIM To study the genetic alteration in ACF andto define the possibility that ACF may be a veryearly morphological lesion with molecularchanges, and to explore the relationshipbetween ACF and colorectal adenoma evencarcinoma.METHODS DNA from 35 CRC, 15 adenomas, 34ACF and 10 normal mucus was isolated by meansof microdissection. Direct gene sequencing of K-ras gene including codon 12, 13 and 61 as well asthe mutation cluster region (MCR) of APC genewas performed.RESULTS K-ras gene mutation frequency inACF, adenoma and carcinoma was 17.6% (6/34), 13.3% (2/ 15), and 14.3% (5/ 35)respectively, showing no difference ( P > 0.05)in K-fas gene mutation among three pathologicprocedures. The K-ras gene mutation inadenoma, carcinoma and 4 ACF restricted incodon 12 (GGT→GAT), but the other 2 mutationsfrom ACF located in codon 13 (GGC→GAC). K-res gene mutation was found more frequently inolder patients and patients with polypoidcancer. No mutation in codon 61 was found in thethree tissue types. Mutation rate of APO gene inadenoma and carcinoma was 22.9% (8/35) and26.7% (4/ 15), which was higher than ACF(2.9%) (P < 0.05). APC gene mutation incarcinoma was not correlated with age ofpatients, location, size and differentiation oftumor.CONCLUSION ACF might be a very earlymorphological lesion in the tumorogenesis ofcolorectal tumor. The morphological feature andgene mutation status was different in ACF andadenoma. ACF is possibly putative'microadenoma' that might be the precursor ofadenoma. In addition, the development of asubgroup of colorectal carcinomas mightundergo a way of 'normal epithelium→ ACF→carcinomas'. | Ping Yuan~1 Meng Hong Sun~2 Jin Sheng Zhang~1 Xiong Zeng Zhu~2 Da Ren Shi~2 ~1Department of Pathology,Medical College of Fudan University,~2Department of Pathology,Cancer Hospital/Cancer Institute,Fudan University,Shanghai 200032,ChinaDr.Ping Yuan Studying Province.studying in Medical College of Fudan University,worked in Department of Pathology,Wannan Medical College,having eighteen papers published. | 2001 | World Journal of Gastroenterology2001,7,3: | 20 |
| 3 | Differential secretome analysis reveals CST6 as a suppressor of breast cancer bone metastasis显示文摘骨头转移从疾病是乳癌的经常的复杂并发症和病态和死亡的一个普通原因。在转移期间,分泌蛋白质在在癌症房间和主人基质之间的相互作用起关键作用。为了描绘分泌蛋白质,那与乳癌骨头转移被联系,我们比较四个 MDA-MB-231 (MDA231 ) 衍生物房间的 secretomes 的没有标签的 proteomic 分析与骨头转移的改变的能力衬里的 preformed。128 蛋白质的一个总数被发现是一致地在骨头回归线癌症房间的调节媒介的 up-/down-regulated。改变的蛋白质的充实的分子的函数包括了受体绑定和 peptidase 抑制。通过乳癌房间的另外的 transcriptomic 分析,我们选择了 cystatin E/M (CST6 ) ,在骨头变形的房间下面调整的一个半胱氨酸朊酶禁止者,为进一步功能的研究。我们的结果证明 CST6 压制了乳癌房间的增长,殖民地形成,迁居和侵略。对癌症房间活动性的镇压功能被癌症执行导出房间的可溶的 CST6。更重要地,在癌症房间的 CST6 的宫外的表示在动物学习救了老鼠免于公开 osteolytic 转移和死亡,当时 CST6 击倒的显著地提高的癌症房间骨头转移和弄短的动物幸存。总的来说,我们的学习提供了乳癌骨头向性的全身的 secretome 分析并且作为乳癌 osteolytic 转移的真正的 suppressor 建立了分泌 CST6。 | Lei Jin Yan Zhang Hui Li Ling Yao Da Fu Xuebiao Yao Lisa X Xu Xiaofang Hu Guohong Hu | 2012 | Cell Research2012,22,9: | 15 |
| 4 | Lumbar spine superior-level facet joint violations: percutaneous versus open pedicle screw insertion using intraoperative 3-dimensional computer-assisted navigation显示文摘 | Tian Wei Xu Yunfeng Liu Bo Liu Yajun He Da Yuan Qiang Lang Zhao Lyu Yanwei Han Xiaoguang Jin Peihao | 2014 | Chinese Medical Journal2014,,22: | 10 |
| 5 | Two New Flavonoid Glycosides from Chrysanthemum morifolium显示文摘Two new flavonoid glycosides were isolated from the flowering heads of Chrysanthemum morifolium. Their structures were determined to be luteolin 4’-methoxy-7- O-(6'-O-acetyl)-β-D-glucopyranoside (1) and acacetin 7-O-(3'-O-acetyl)-β-D-glucopyranoside (2) by means of 1H and 13C NMR spectroscopic analysis, including 2D NMR technique. | Jian ZHANG An Wei DING You Bin LI Da Wei QIAN Jin Ao DUAN Zhi Qi YIN | 2006 | Chinese Chemical Letters2006,17,8: | 10 |
| 6 | Applying the China-PAR Risk Algorithm to Assess 10-year Atherosclerotic Cardiovascular Disease Risk in Populations Receiving Routine Physical Examinations in Eastern China显示文摘Objective To assess the 10-year Atherosclerotic Cardiovascular Disease(ASCVD) risk score among adults in eastern China using the China-PAR equation which formulated primarily for the Chinese population. Methods Data from 72,129 individuals from 35-74 years old who received routine physical examinations in eastern China were analyzed in this study. The 10-year risk scores were calculated using the China-PAR equation. The chi-square test and logistic regression were then performed to evaluate the association between the selected risk factors and overall CVD risk. Results The mean 10-year ASCVD risk scores were 3.82% ± 3.76% in men and 1.30% ± 1.65% in women based on the China-PAR equation. Overall, 20% of men and 3.5% of women were intermediate-risk, and 7.3% of men and 0.3% of women were high-risk. Waist to hip ratio(WHR) [OR = 1.16(CI 95% = 1.06-1.26)], waist to height ratio(WHtR) [OR = 1.16(CI 95% = 1.05-1.28)], non-high-density lipoprotein cholesterol(non-HDL-C) [OR = 1.23(CI 95% = 1.09-1.39)], and total cholesterol(TC)/HDL-C [OR = 1.68(CI 95% = 1.46-1.94)] were more strongly associated with CVD risk than body-mass index(BMI), waist circumference(WC), and TC alone. Conclusion Male-specific prevention and treatment strategies for ASCVD are needed in eastern China. In addition, WHR, WHtR, non-HDL-C, and TC/HDL-C which not included in the the China-PAR equation were also independently associated with 10-year ASCVD risk score categories. | LI Hui Hua HUANG Shan LIU Xing Zhen ZOU Da Jin | 2019 | Biomedical and Environmental Sciences2019,32,2: | 9 |
| 7 | Zika virus infection induces RNAi-mediated antiviral immunity in human neural progenitors and brain organoids显示文摘The re-emergence of Zika virus(ZIKV)in the Western Hemisphere has resulted in global public health crisis since 2015.ZIKV preferentially infects and targets human neural progenitor cells(hNPCs)and causes fetal microcephaly upon maternal infection.hNPCs not only play critical roles during fetal brain development,but also persist in adult brain throughout life.Yet the mechanism of innate antiviral immunity in hNPCs remains largely unknown.Here,we show that ZIKV infection triggers the abundant production of virus-derived small interfering RNAs in hNPCs,but not in the more differentiated progenies or somatic cells.Ablation of key RNAi machinery components significantly enhances ZIKV replication in hNPCs.Furthermore,enoxacin,a broad-spectrum antibiotic that is known as an RNAi enhancer,exerts potent anti-ZIKV activity in hNPCs and other RNAi-competent cells.Strikingly,enoxacin treatment completely prevents ZIKV infection and circumvents ZIKV-induced microcephalic phenotypes in brain organoid models that recapitulate human fetal brain development.Our findings highlight the physiological importance of RNAi-mediated antiviral immunity during the early stage of human brain development,uncovering a novel strategy to combat human congenital viral infections through enhancing RNAi. | Yan-Peng Xu Yang Qiu Boya Zhang Guilai Chen Qi Chen Miao Wang Fan Mo Jiuyue Xu Jin Wu Rong-Rong Zhang Meng-Li Cheng Na-Na Zhang Bao Lyu Wen-Liang Zhu Meng-Hua Wu Qing Ye Da Zhang Jiang-Hong Man Xiao-Feng Li Jie Cui Zhiheng Xu Baoyang Hu Xi Zhou Cheng-Feng Qin | 2019 | Cell Research2019,29,4: | 8 |
| 8 | Primary evidence for involvement of IP_(3) in heat-shock signal transduction in Arabidopsis显示文摘热吃惊(HS ) 表明的在 transducing 的肌醇 1,4,5-trisphosphate (IP (3 )) 的角色在 Arabidopsis 被检验。整个植物的 IP (3 ) 水平在 37 度 C 在 HS 的 1 min 以内增加了。在 HS 的 3 min 以后, IP (3 ) 水平到达了最大值 2.5 褶层增加。用有 AtHsp18.2 promoter-beta-glucuronidase ( GUS )的转基因的 Arabidopsis 植物熔化基因, GUS 活动的水平在 non-HS 和 HS 温度由将关入笼中的 IP ( 3 )的增加是起来调整的并且由 phospholipase C ( PLC )禁止者是下面调整的,这被发现{1-[6-(( 17beta-3-Methoxyestra-1,3,5 ( 10 ) -trien-17-yl)amino)hexyl]-2,5-pyrro lidinedione }( U-73122 )。细胞内部免费的钙离子集中([Ca (2+)](i)) 在表示 apoaequorin 的暂停有教养的 Arabidopsis 房间在 37 度 C 在 HS 期间增加了。有 U-73122 的处理阻止了增加[Ca (2+)](i) 到某程度。上面的结果在更高的植物在 HS 信号 transduction 为 IP (3 ) 的可能的参与提供了主要证据。 | Hong Tao Liu Fei Gao Shu Juan Cui Jin Long Han Da Ye Sun Ren Gang Zhou | 2006 | Cell Research2006,16,4: | 7 |
| 9 | H2 strain attenuated live hepatitis A vaccines:protective efficacy in a hepatitis A outbreak显示文摘AIM To investigate the protective efficacy ofH2 strain attenuated live hepatitis A vaccines(H2-strain vaccines)in hepatitis A(HA)outbreaks.METHODS With the permission of theirparents,5551 pre-school and grade 1-3 primaryschool children were inoculated with 1 dose(106.5TCID50)of H2-strain vaccines in anonrandomized,controlled trial conducted inFucheng County,Hebei Province in May 1997.Another 6485 children in the same grades andcompatible in gender and age were enrolled ascontrols.Epidemiological and serological surveywas conducted to evaluate the protectiveefficacy of the vaccines.ELISA was used todetect serum IgM anti-HAV.RESULTS HA outbreak started in early May1998,peaked in the middle of the same month,and lasted about 80 days.Overall 302 HA caseswere found,192(53.58%)were 5-9 years old.One vaccinee and 25 control cases were found tohave hepatitis A,which account for 0.28%(1/356)and 5.92%(25/422)of all vaccinees andcontrols in the 14 villages,respectively.The protective efficacy of vaccines was 95.27%(95% Cl:85.83%-104.72%).In subjects testedfor anti-HAV IgM from 13 villages,1(0.40%)overt and 11(4.06%)asymptomatic HAV caseswere found in 271 vaccinees,but 21(6.69%)ofovert and asymptomatic ones were found in 314controls.CONCLUSION H2 strain vaccines were excellent in preventing overt hepatitis A, but not so effective in preventing asymptomatic hepatitis A virus infection. A booster dose might be needed to get permanent reliable immunity. | Yu Liang Zhao Zong Da Meng Zhi Yi Xu Jun Jie Guo Shao Ai Chai Cheng Gang Duo Xuan Yi Wang Jin Feng Yao Hong Bin Liu Shun Xiang Qi Hui Bin Zhu | 2000 | World Journal of Gastroenterology2000,6,6: | 7 |
| 10 | An action-based Markov chain modeling approach for predicting the window operating behavior in office spaces显示文摘Reliable energy and performance prediction for building design and planning is important for newly-designed or retrofitted buildings.Window operating behavior has an important influence on the ventilation and energy consumption of these buildings under different realistic scenarios.Therefore,quantitatively describing this behavior and constructing a prediction model are important.In this work,an action-based Markov chain modeling approach for predicting window operating behavior in office spaces was proposed.Two summer measurement data(2016 and 2018)were used to verify the accuracy and validity of the modeling approach.The opening rate,outdoor temperature,time distribution,and on-off curve were proposed as four inspection standards.This study also compared the prediction performance between the action-based Markov chain modeling approach with the state-based Markov chain modeling approach,which is the most popular modeling approach to model occupant window operating behavior.This study proved that the yearly variation of occupants’behavior performed a form of action that remained unchanged during a certain period.Meanwhile,the results also proved that the action-based Markov chain modeling approach can reflect the actual window operating behavior accurately within an open-plan office,which is a beneficial supplement for energy-consumption simulation software in a window-state prediction module.The state-based Markov chain modeling approach showed better stability and accuracy in terms of the opening rate,whereas the action-based Markov chain modeling approach showed good consistency with the measurement data in the on-off curves and in situations with little data.For the on-off curves,the accuracy of action-based modeling approach in the prediction of window open-state is 20%higher. | Xin Zhou Tiance Liu Da Yan Xing Shi Xing Jin | 2021 | Building Simulation2021,14,2: | 7 |
| 11 | A data-driven model predictive control for lighting system based on historical occupancy in an office building: Methodology development显示文摘The lighting system accounts for 8%of the total electricity consumption in commercial buildings in the United States and 12%of the total electricity consumption in public buildings globally.This consumption share can be effectively reduced using the demand-response control.The traditional lighting system control method commonly depends on the real-time occupancy data collected using the passive infrared(PIR)sensor.However,the detection inaccuracy of the PIR sensor usually results in false-offs.To diminish the false-error frequency,the existing lighting system control simply deploys a delayed reaction period(e.g.,5 to 20 min),which is not sufficiently accurate for the demand-response operation.Therefore,in this research,a novel data-driven model predictive control(MPC)method that is based on the temporal sequential-based artificial neural network(TS-ANN)is proposed to overcome this challenge using an updated historical occupancy status.Using an office as case study,the proposed model is also compared with the traditional lighting system control method.In the proposed model,the occupancy data was trained to predict the occupancy pattern to improve the control.It was found that the occupancy prediction mainly correlates with the historical occupancy ratio and the time sequential feature.The simulation results indicated that the proposed method achieved higher accuracy(97.4%)and fewer false-offs(from 79.5 with traditional time delay method to 0.6 times per day)are achieved by the MPC model.The proposed TS-ANN-MPC method integrates the analysis of the occupant behavior routine into on-site control and has the potential to further enhance the control performance practice for maximum energy conservation. | Yuan Jin Da Yan Xingxing Zhang Jingjing An Mengjie Han | 2021 | Building Simulation2021,14,1: | 6 |
| 12 | Effects of Two Curcuminoids on Candida albicans显示文摘Objective To investigate and compare the action of curcuminoids on the causal pathogens of Candida albicans growth. Methods The effects of curcumin (CUR) and demethoxycurcumin (DMC) on C. albicans growth were first investigated and compared by microcalorimetry coupled with multiple analytical methods. The quantitative thermo-kinetic parameters obtained from these curves were analyzed to show difference of the actions. Results By analyzing the main parameters screened from principal component analysis together with 50% inhibiting concentration values, it was demonstrated that both CUR and DMC showed good antifungal activities and CUR was stronger. It was further concluded from structure-activity relationship that the existence of methoxy group might enhance lipophilicity of the mother nucleus, which made it easier for the molecular to enter into the cell membrane of fungi to inhibit its growth. Conclusion This study provides a new method for screening new antifungal agents with high efficacy and low toxicity. Meanwhile, it contributes to the application of curcuminoids as food additive, colorant, and drug. Microcalorimetry is real-time, online, and dynamic, and it could be used to characterize the subtle difference among the effects of synthetic and natural products on the vital process of fungi. | ZHANG Da LUO Jiao-yang YAN Dan JIN Cheng DONG Xiao-ping XIAO Xiao-he | 2012 | Chinese Herbal Medicines2012,4,3: | 5 |
| 13 | Hwangryunhaedoktang exerts anti-inflammation on LPS-induced NO production by suppressing MAPK and NF-κB activation in RAW264.7 macrophages显示文摘OBJECTIVE: This study aimed to evaluate whether Hwangryunhaedoktang(HHT), a herbal compound, has an inhibitory effect on lipopolysaccharide(LPS)-induced inflammation in RAW264.7 macrophages.METHODS: The effects of HHT were evaluated by confirming nitric oxide(NO) production and expression of inducible NO synthase(iN OS) and mitogen-activated protein kinases(MAPKs) in LPS-stimulated RAW264.7 macrophages via the Griess assay, Western blotting, and real-time reverse transcription quantitative polymerase chain reaction. Western blot analyses and luciferase assays were used to evaluate whether HHT has an effect on the phosphorylation and translocation of nuclear factor-κB(NF-κB). The secretion and expression of tumor necrosis factor-α(TNF-α) and interleukin-6(IL-6) were determined via enzyme-linked immunosorbent assay and Western blot analyses.RESULTS: HHT suppressed LPS-induced NO production and expression of iN OS in a dose-dependent manner. Additionally, MAPKs activation was also attenuated via inhibition of phosphorylation of extracellular signal-regulated kinases 1/2, c-Jun N-terminal kinase and p38 which were related to inflammatory pathway. Furthermore, HHT also effectively attenuated NF-κB activation and its translocation to the nucleus, a process that is closely linked to inflammation. LPS normally induced the expression of inflammatory cytokines such as TNF-α and IL-6, but the secretion and expression of TNF-α and IL-6 were significantly attenuated by pretreating the cells with HHT.CONCLUSION: HHT suppressed LPS-induced NO production by blocking the activation of NF-κB and MAPK signaling pathways in RAW264.7 macrophages. Furthermore, HHT may have an anti-inflammatory effect by suppressing the LPS-induced secretion of TNF-α and IL-6. Therefore, the traditional herbal formula HHT might be a useful potential therapeutic agent for inflammation. | Byung Hyuk Han Yun Jung Lee Jung Joo Yoon Eun Sik Choi Seung Namgung Xian Jun Jin Da Hye Jeong Dae Gill Kang Ho Sub Lee | 2017 | Journal of Integrative Medicine2017,15,4: | 5 |
| 14 | A new iridoid glycoside from Paederia scandens显示文摘A new glycoside named 6β-O-β-D-glucosylpaederosidic acid(1) was isolated from Paederia scandens and its structure was elucidated on the basis of spectroscopic and chemical evidence,together with four known iridoids,paederoside(2),paederosidic acid(3),paederosidic acid methyl ester(4),and deacetyl asperulosidic acid methyl ester(5).Compound 5 was isolated from this plant for the first time. | He, Da Hai Chen, Jin Song Wang, Xiao Ling Ding, Ke Yi | 2010 | Chinese Chemical Letters2010,21,4: | 5 |
| 15 | Hydrophobic modification of poly(phthalazinone ether sulfone ketone) hollow fiber membrane for vacuum membrane distillation显示文摘新恐水病(phthalazinone 醚 sulfone 酉同类)(PPESK ) poly,空心丝复合膜被表面涂的修正方法获得。 | Zhao Jin Da Ling Yang Shou Hai Zhang Xi Gao Jian | 2008 | Chinese Chemical Letters2008,19,3: | 5 |
| 16 | A correlation study of the expression of resistin and glycometabolism in muscle tissue after traumatic brain injury in rats显示文摘 | Jin Peng Zhu Lielie Zhang Jiasheng Xie Songling Pan Da Wen Hao Meng Weiyang Lin Luyang Chen Daqing | 2014 | Chinese Journal of Traumatology2014,17,3: | 5 |
| 17 | Construction of LDPC Codes for the Layered Decoding Algorithm显示文摘The layered decoding algorithm has been widely used in the implementation of Low Density Parity Check (LDPC) decoders, due to its high convergence speed. However, the pipeline operation of the layered decoder may introduce memory access conflicts, which heavily deteriorates the decoder throughput. To essentially deal with the issue of memory access conflicts, we propose a construction algorithm of LDPC codes, to which a constraint condition is added in the Progressive Edge-Growth (PEG) algorithm. The constraint condition can guarantee that for our constructed LDPC codes, the sets of all the variable nodes connected to the consecutive layers do not share any common variable node, which can avoid the memory access conflicts. Simulation results show that the performance of our constructed LDPC codes is close to the several other LDPC codes adopted in wireless standards. Moreover, compared with the decoder for IEEE 802. 16e LDPC codes, the throughput of our LDPC decoder has large improvement, while the chip resource consumption is unchanged. Thus, our constructed LDPC codes can be adopted in the high-speed transmission. | Wang Da Dong Mingke Chen Chen Jin Ye Xiang Haige | 2012 | China Communications2012,9,7: | 4 |
| 18 | PCDH17 increases the sensitivity of colorectal cancer to 5-fluorouracil treatment by inducing apoptosis and autophagic cell death显示文摘5-Fluorouracil(5-FU)is known as a first-line chemotherapeutic agent against colorectal cancer(CRC),but drug resistance occurs frequently and significantly limits its clinical success.Our previous study showed that the protocadherin 17(PCDH17)gene was frequently methylated and functioned as a tumor suppressor in CRC.However,the relationship between PCDH17 and 5-FU resistance in CRC remains unclear.Here,we revealed that PCDH17 was more highly expressed in 5-FU-sensitive CRC tissues than in 5-FU-resistant CRC tissues,and high expression of PCDH17 was correlated with high BECN1 expression.Moreover,this expression profile contributed to superior prognosis and increased survival in CRC patients.Restoring PCDH17 expression augmented the 5-FU sensitivity of CRC in vitro and in vivo by promoting apoptosis and autophagic cell death.Furthermore,autophagy played a dominant role in PCDH17-induced cell death,as an autophagy inhibitor blocked cell death to a greater extent than the pancaspase inhibitor Z-VAD-FMK.PCDH17 inhibition by siRNA decreased the autophagy response and 5-FU sensitivity.Mechanistically,we showed that c-Jun NH2-terminal kinase(JNK)activation was a key determinant in PCDH17-induced autophagy.The compound SP600125,an inhibitor of JNK,suppressed autophagy and 5-FU-induced cell death in PCDH17-reexpressing CRC cells.Taken together,our findings suggest for the first time that PCDH17 increases the sensitivity of CRC to 5-FU treatment by inducing apoptosis and JNK-dependent autophagic cell death.PCDH17 may be a potential prognostic marker for predicting 5-FU sensitivity in CRC patients. | Shuiping Liu Haoming Lin Da Wang Qiang Li Hong Luo Guoxiong Li Xiaohui Chen Yongqiang Li Peng Chen Bingtao Zhai Wengang Wang Ruonan Zhang Bi Chen Mingming Zhang Xuemeng Han Qiujie Li Liuxi Chen Ying Liu Xiaying Chen Guohua Li Yu Xiang Ting Duan Jiao Feng Jianshu Lou Xingxing Huang Qin Zhang Ting Pan Lili Yan Ting Jin Wenzheng Zhang Lvjia Zhuo Yitian Sun Tian Xie Xinbing Sui | 2019 | Signal Transduction and Targeted Therapy2019,4,1: | 4 |
| 19 | Involvement of heme oxygenase-1 induction in anti-vascular inflammation effects of Xanthoceras sorbifolia in human umbilical vein endothelial cells显示文摘OBJECTIVE: To define the effects of Xanthoceras sorbifolia(EXS) on vascular inflammation and the mechanisms in endothelial cells.METHODS: Vascular protective effects of an ethanol extract of seeds from EXS(1-50 μg/mL) against tumor necrosis factor-α(TNF-α)-induced vascularinflammation were examined in human umbilical vein endothelial cells(HUVECs).RESULTS: EXS significantly decreased TNF-α-induced expression of cell adhesion molecules, such as intracellular adhesion molecule-1, vascular cell adhesion molecule-1, and endothelial cell selectin,in a dose-dependent manner. Pre-treatment with EXS significantly inhibited translocation and transcriptional activity of nuclear factor-κB(NF-κB) increased by TNF-α. EXS also significantly inhibited formation of intracellular reactive oxygen species(ROS). Moreover, the vascular protective effects of EXS were linked to up-regulation of heme oxygenase-1(HO-1) and nuclear factor E2-related factor-2(Nrf-2) expression. EXS-induced HO-1 expression was significantly decreased in SnPP(HO-1 inhibitor)-and HO-1 siRNA-treated cells, whereas an increase was found in cobalt protoporphyrin IX(CoPP)(HO-1 inducer)-treated cells. In addition, pretreatment with EXS increased HO-1 and Nrf-2 expression under TNF-α stimulation with or without N-acetyl-L-cysteine. Furthermore, the inhibitory effects of EXS on TNF-α-induced vascular inflammation were partially reversed in SnPP-and of HO-1siRNA-treated cells but increased by CoPP.CONCLUSION: These results suggest that EXS may have important implications for prevention of vascular complications associated with vascular inflammation by inhibition of the NF-κB/ROS pathway and activation of the Nrf-2/HO-1 pathway. | Jung Joo Yoon Byung Hyuk Han Eun Sik Choi Seung Namgung Da Hye Jeong Song Nan Jin Yun Jung Lee Dae Gill Kang Ho Sub Lee | 2018 | Journal of Traditional Chinese Medicine2018,38,6: | 4 |
| 20 | Detection of enteroviruses and hepatitis a virus in water by consensus primer multiplex RT-PCR显示文摘AIM: To develop a rapid detection method ofenteroviruses and Hepatitis A virus (HAV).METHODS: A one-step, single-tube consensus primersmultiplex RT-PCR was developed to simultaneouslydetect Poliovirus, Coxsackie virus, Echovirus and HAV.A general upstream primer and a HAV primer and fourdifferent sets of primers (5 primers) specific forPoliovirus, Coxsacki evirus, Echovirus and HAV cDNAwere mixed in the PCR mixture to reverse transcriptand amplify the target DNA.Four distinct amplified DNAsegments representing Poliovirus, Coxsackie virus,Echovirus and HAV were identified by gelelectrophoresis as 589-,671-, 1084-, and 1128bpsequences, respectively. Semi-nested PCR was used toconfirm the amplified products for each enterovirus andHAV.RESULTS: All four kinds of viral genome RNA weredetected, and producing four bands which could bedifferentiated by the band size on the gel.To confirmthe specificity of the multiplex PCR products, semi-nested PCR was performed. For all the four strainstested gave positive results .The detection sensitivityof multiplex PCR was similar to that of monoplex RT-PCR which was 24 PFU for Poliovrus, 21 PFU forCoxsackie virus,60 PFU for Echovirus and 105 TCID50for HAV. The minimum amount of enteric viral RNAdetected by semi-nested PCR was equivalent to 2.4 PFUfor Poliovrus, 2.1 PFU for Coxsackie virus, 6.0 PFU forEchovirus and 10.5 TCID50 for HAV.CONCLUSION: The consensus primers multiplex RT-PCRhas more advantages over monoplex RT-PCR for entericviruses detection, namely, the rapid turnaround timeand cost effectiveness. | Jun-Wen Li Xin-Wei Wang Chang-Qing Yuan Jin-Lai Zheng Min Jin Nong Song Xiu-Quan Shi Fu-Huan Chao Department of Environment and Health,Institute of Health and Environmental Medicine of Tianiin,1 Da Li Road.Tianjin 300050,China | 2002 | World Journal of Gastroenterology2002,8,4: | 4 |