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| 1 | 8-bromo-7-methoxychrysin-induced apoptosis of hepatocellular carcinoma cells involves ROS and JNK显示文摘AIM:To investigate whether the apoptotic activities of 8-bromo-7-methoxychrysin(BrMC) involve reactive oxygen species(ROS) generation and c-Jun N-terminal kinase(JNK) activation in human hepatocellular carcinoma cells(HCC).METHODS:HepG2,Bel-7402 and L-02 cell lines were cultured in vitro and the apoptotic effects of BrMC were evaluated by flow cytometry(FCM) after propidium iodide(PI) staining,caspase-3 activity using enzymelinked immunosorbent assay(ELISA),and DNA agarose gel electrophoresis.ROS production was evaluated by FCM after dichlorodihydrofluorescein diacetate(DCHFDA) probe labeling.The phosphorylation level of JNK and c-Jun protein was analyzed by Western blotting.RESULTS:FCM after PI staining showed a dose-dependent increase in the percentage of the sub-G1 cell pop-ulation(P < 0.05),reaching 39.0% ± 2.8% of HepG2 cells after 48 h of treatment with BrMC at 10 μmol/L.The potency of BrMC to HepG2 and Bel-7402(32.1% ± 2.6%) cells was found to be more effective than the lead compound,chrysin(16.2% ± 1.6% for HepG2 cells and 11.0% ± 1.3% for Bel-7402 cell) at 40 μmol/L and similar to 5-flurouracil(33.0% ± 2.1% for HepG2 cells and 29.3% ± 2.3% for Bel-7402 cells) at 10 μmol/L.BrMC had little effect on human embryo liver L-02 cells,with the percentage of sub-G1 cell population 5.4% ± 1.8%.Treatment of HepG2 cells with BrMC for 48 h also increased the levels of active caspase-3,in a concentration-dependent manner.z-DEVD-fmk,a caspase-3specific inhibitor,prevented the activation of caspase-3.Treatment with BrMC at 10 μmol/L for 48 h resulted in the formation of a DNA ladder.Treatment of cells with BrMC(10 μmol/L) increased mean fluorescence intensity of DCHF-DA in HepG2 cells from 7.2 ± 1.12 at 0 h to 79.8 ± 3.9 at 3 h and 89.7 ± 4.7 at 6 h.BrMC did not affect ROS generation in L-02 cells.BrMC treatment failed to induce cell death and caspase-3 activation in HepG2 cells pretreated with N-acetylcysteine(10 mmol/L).In addition,in HepG2 cells treated with BrMC(2.5,5.0,10.0 μmol/L) for 12 h,JNK activation was observed.Peak JNK activation occurred at 12 h post-treatment and this activation persisted for up to 24 h.The expression of phosphorylated JNK and c-Jun protein after 12 h with BrMC-treated cells was inhibited by N-acetylcysteine and SP600125 pre-treatment,but GW9662 had no effect.SP600125 substantially reduced BrMC-induced cell death and caspase-3 activation of HepG2 cells.N-acetylcysteine and GW9662 also attenuated induction of cell death and caspase-3 activation in HepG2 cells treated with BrMC.CONCLUSION:BrMC induces apoptosis of HCC cells by ROS generation and sustained JNK activation. | Xiao-Hong Yang Jian-Guo Cao Hong-Lin Xiang Fei Liu Yuan Lv Hunan Province China Xing Zheng | 2010 | World Journal of Gastroenterology2010,16,27: | 38 |
| 2 | Age-related rhesus macaque models of COVID-19显示文摘Background:Since December 2019,an outbreak of the Corona Virus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)in Wuhan,China,has become a public health emergency of international concern.The high fatality of aged cases caused by SARS-CoV-2 was a need to explore the possible age-related phenomena with non-human primate models.Methods:Three 3-5 years old and two 15 years old rhesus macaques were intratracheally infected with SARS-CoV-2,and then analyzed by clinical signs,viral replication,chest X-ray,histopathological changes and immune response.Results:Viral replication of nasopharyngeal swabs,anal swabs and lung in old monkeys was more active than that in young monkeys for 14 days after SARS-CoV-2 challenge.Monkeys developed typical interstitial pneumonia characterized by thickened alveolar septum accompanied with inflammation and edema,notably,old monkeys exhibited diffuse severe interstitial pneumonia.Viral antigens were detected mainly in alveolar epithelial cells and macrophages.Conclusion:SARS-CoV-2 caused more severe interstitial pneumonia in old monkeys than that in young monkeys.Rhesus macaque models infected with SARS-CoV-2 provided insight into the pathogenic mechanism and facilitated the development of vaccines and therapeutics against SARS-CoV-2 infection. | Pin Yu Feifei Qi Yanfeng Xu Fengdi Li Peipei Liu Jiayi Liu Linlin Bao Wei Deng Hong Gao Zhiguang Xiang Chong Xiao Qi Lv Shuran Gong Jiangning Liu Zhiqi Song Yajin Qu Jing Xue Qiang Wei Mingya Liu Guanpeng Wang Shunyi Wang Haisheng Yu Xing Liu Baoying Huang Wenling Wang Li Zhao Huijuan Wang Fei Ye Weimin Zhou Wei Zhen Jun Han Guizhen Wu Qi Jin Jianwei Wang Wenjie Tan Chuan Qin | 2020 | Animal Models and Experimental Medicine2020,3,1: | 22 |
| 3 | Fast magnetic reconstruction of the portal vein with allogeneic blood vessels in canines显示文摘BACKGROUND:The resection and reconstruction of large vessels,including the portal vein,are frequently needed in tumor resection.Warm ischemia before reconstruction might have deleterious effects on the function of some vital organs and therefore,how to reconstruct the vessels quickly after resection is extremely important.The present study was to introduce a new type of magnetic compression anastomosis(MCA)device to establish a quick non-suture anastomosis of the portal vein after resection in canines.METHODS:The new MCA device consists of a pair of titanium alloy and neodymium-ferrum-boron magnet(Ti-Nd Fe B)composite rings.The Nd Fe B magnetic ring as a core of the device was hermetically sealed inside the biomedical titanium alloy case.Twelve canines were divided into two groups:a MCA group in which the end-to-end anastomoses was made with a new device after resection in the portal vein and a traditional manual suture(TMS)group consisted of 6 canines.The anastomosis time,anastomotic patency and quality were investigated at week 24 postoperatively.RESULTS:The portal vein was reconstructed successfully in all of the animals and they all survived.The duration of portal vein anastomosis was significantly shorter in the MCA group than in the TMS group(8.16±1.25 vs 36.24±2.17 min,P<0.05).Portography and ultrasound showed that the blood flow was normal without angiostenosis or thrombosis in all of the canines.Hematoxylin-eosin staining and electron microscope scanning showed in contrast to the TMS group,MCA anastomotic intimal was much smoother with more regularly arranged endothelial cells at week 24 postoperatively. | Shan-Pei Wang Xiao-Peng Yan Fei Xue Ding-Hui Dong Xu-Feng Zhang Feng Ma Hao-Hua Wang Yi Lv | 2015 | Hepatobiliary & Pancreatic Diseases International2015,14,3: | 20 |
| 4 | Transjugular intrahepatic portosystemic shunt vs endoscopic therapy in preventing variceal rebleeding显示文摘AIM:To compare early use of transjugular intrahepatic portosystemic shunt(TIPS) with endoscopic treatment(ET) for the prophylaxis of recurrent variceal bleeding.METHODS:In-patient data were collected from 190 patients between January 2007 and June 2010 who suffured from variceal bleeding.Patients who were older than 75 years;previously received surgical treatment or endoscopic therapy for variceal bleeding;and complicated with hepatic encephalopathy or hepatic cancer,were excluded from this research.Thirty-five cases lost to follow-up were also excluded.Retrospective analysis was done in 126 eligible cases.Among them,64 patients received TIPS(TIPS group) while 62 patients received endoscopic therapy(ET group).The relevant data were collected by patient review or telephone calls.The occurrence of rebleeding,hepatic encephalopathy or other complications,survival rateand cost of treatment were compared between the two groups.RESULTS:During the follow-up period(median,20.7 and 18.7 mo in TIPS and ET groups,respectively),rebleeding from any source occurred in 11 patients in the TIPS group as compared with 31 patients in the ET group(Kaplan-Meier analysis and log-rank test,P = 0.000).Rebleeding rates at any time point(6 wk,1 year and 2 year) in the TIPS group were lower than in the ET group(Bonferroni correction α' = α/3).Eight patients in the TIPS group and 16 in the ET group died with the cumulative survival rates of 80.6% and 64.9%(Kaplan-Meier analysis and log-rank test c2 = 4.864,P = 0.02),respectively.There was no significant difference between the two groups with respect to 6-wk survival rates(Bonferroni correction α' = α/3).However,significant differences were observed between the two groups in the 1-year survival rates(92% and 79%) and the 2-year survival rates(89% and 64.9%)(Bonferroni correction α' = α/3).No significant differences were observed between the two treatment groups in the occurrence of hepatic encephalopathy(12 patients in TIPS group and 5 in ET group,KaplanMeier analysis and log-rank test,c2 = 3.103,P = 0.08).The average total cost for the TIPS group was higher than for ET group(Wilcxon-Mann Whitney test,52 678 RMB vs 38 844 RMB,P < 0.05),but hospitalization frequency and hospital stay during follow-up period were lower(Wilcxon-Mann Whitney test,0.4 d vs 1.3 d,P = 0.01;5 d vs 19 d,P < 0.05).CONCLUSION:Early use of TIPS is more effective than endoscopic treatment in preventing variceal rebleeding and improving survival rate,and does not increase occurrence of hepatic encephalopathy. | Hui Xue Meng Zhang Jack XQ Pang Fei Yan Ying-Chao Li Liang-Shan Lv Jia Yuan Muna Palikhe Wei-Zhi Li Zhi-Lun Wang | 2012 | World Journal of Gastroenterology2012,18,48: | 17 |
| 5 | Choledochojejunostomy with an innovative magneticcompressive anastomosis:How to determine optimalpressure?显示文摘AIM: To investigate the optimal magnetic pressure and provide a theoretical basis for choledochojejunostomy magnetic compressive anastomosis(magnamosis).METHODS: Four groups of neodymium-iron-boron magnets with different magnetic pressures of 0.1, 0.2, 0.3 and 0.4 MPa were used to complete the choledochojejunostomy magnamosis. Twenty-six young mongrel dogs were randomly divided into five groups: four groups with different magnetic pressures and 1 group with a hand-suture anastomosis. Serum bilirubin levels were measured in all groups before and 1 wk, 2 wk, 3 wk, 1 mo and 3 mo after surgery. Daily abdominal X-ray fluoroscopy was carried out postoperatively to detect the path and the excretion of the magnet. The animals were euthanized at 1 or 3 mo after the operation, the burst pressure was detected in each anastomosis, and the gross appearance and histology were compared according to the observation.RESULTS: The surgical procedures were all successfully performed in animals. However, animals of group D(magnetic pressure of 0.4 MPa) all experienced complications with bile leakage(4/4), whereas half of animals in group A(magnetic pressure of 0.1 MPa) experienced complications(3/6), 1 animal in the manual group E developed anastomotic stenosis, and animals in group B and group C(magnetic pressure of 0.2 MPa and 0.3 MPa, respectively) all healed well without complications. These results also suggested that the time required to form the stoma was inversely proportional to the magnetic pressure; however, the burst pressure of group A was smaller than those of the other groups at 1 mo(187.5 ± 17.7 vs 290 ± 10/296.7 ± 5.7/287.5 ± 3.5, P < 0.05); the remaining groups did not differ significantly. A histologic examination demonstrated obvious differences between the magnamosis groups and the hand-sewn group.CONCLUSION: We proved that the optimal range for choledochojejunostomy magnamosis is 0.2 MPa to 0.3 MPa, which will help to improve the clinical application of this technique in the future. | Fei Xue Hong-Chang Guo Jian-Peng Li Jian-Wen Lu Hao-Hua Wang Feng Ma Ya-Xiong Liu Yi Lv | 2016 | World Journal of Gastroenterology2016,22,7: | 14 |
| 6 | Seven-day triple therapy is a better choice for Helicobacter pylori eradication in regions with low antibiotic resistance显示文摘AIM: To investigate whether 7-d triple therapies are still valid in populations with low levels of resistance.METHODS: A total of 1106 Helicobacter pylori(H. pylori)-positive patients were divided into three groups,each of which received one type of 7-d triple therapy. Therapeutic outcomes of the patients were assessed by the 13C-urea breath test at 8 wk after treatment. The susceptibility of H. pylori to antibiotics was determined by an agar-dilution method. Data analysis was performed by χ2 tests.RESULTS: The eradication rates in groups A,B and C were 90.71%(332/366),90.46%(313/346) and 90.87%(189/208),respectively(P = 0.986). The resistance rates were 8.91% for clarithromycin,14.78% for levofloxacin and 0% for amoxicillin. The eradication rate was significantly different between clarithromycin-and levofloxacin-resistant patients(P < 0.05) in group A. Patients whose treatment failed in group A also had a higher clarithromycin resistance rate than did successive patients(P = 0.034). However,levofloxacin resistance had no obvious influence on the eradication rate. Furthermore,three main antibiotics(clarithromycin,levofloxacin and amoxicillin) had lower DID(defined daily dose per 1000 inhabitants per day) in this city.CONCLUSION: Clarithromycin resistance is the main reason for the failure of 7-d triple therapy. In populations with low levels of resistance,a 7-d triple therapy is a viable choice. The choice of therapy should not be influenced by conditions in high antibiotic resistance regions. | Yue-Feng Tong Jun Lv Li-Yuan Ying Fang Xu Bo Qin Ming-Tong Chen Fei Meng Miao-Ying Tu Ning-Min Yang You-Ming Li Jian-Zhong Zhang | 2015 | World Journal of Gastroenterology2015,21,46: | 12 |
| 7 | Facile production of ultrathin graphitic carbon nitride nanoplatelets for efficient visible-light water splitting显示文摘Ultrathin graphitic 碳氮化物 nanoplatelets (UGCNP ) 被一种灵巧的方式经由一条有效、 eco 友好的球 milling 途径综合。获得的 UGCNP 在厚度是在尺寸和 0.350.7 nm 的 26 nm,与在体积 graphitic 碳氮化物的上的改进特定的表面区域。光化学的实验证明 UGCNP 在切开的可见光的水里是高度活跃的,与 1,365 摩尔的氢进化率 ?? ? 洠条敮楳瑯敨浲吗? | Qing Han Fei Zhao Chuangang Hu Lingxiao Lv Zhipan Zhang Nan Chen Liangti Qu | 2015 | Nano Research2015,8,5: | 11 |
| 8 | Oncogenic AURKA-enhanced N6-methyladenosine modification increases DROSHA mRNA stability to transactivate STC1 in breast cancer stem-like cells显示文摘RNase III DROSHA is upregulated in multiple cancers and contributes to tumor progression by hitherto unclear mechanisms.Here,we demonstrate that DROSHA interacts withβ-Catenin to transactivate STC1 in an RNA cleavage-independent manner,contributing to breast cancer stem-like cell(BCSC)properties.DROSHA mRNA stability is enhanced by N6-methyladenosine(m^(6)A)modification which is activated by AURKA in BCSCs.AURKA stabilizes METTL14 by inhibiting its ubiquitylation and degradation to promote DROSHA mRNA methylation.Moreover,binding of AURKA to DROSHA transcript further strengthens the binding of the m^(6)A reader IGF2BP2 to stabilize m^(6)A-modified DROSHA.In addition,wild-type DROSHA,but not an m^(6)A methylation-deficient mutant,enhances BCSC stemness maintenance,while inhibition of DROSHA m^(6)A modification attenuates BCSC traits.Our study unveils the AURKA-induced oncogenic m^(6)A modification as a key regulator of DROSHA in breast cancer and identifies a novel DROSHA transcriptional function in promoting the BCSC phenotype. | Fei Peng Jie Xu Bai Cui Qilan Liang Sai Zeng Bin He Hong Zou Manman Li Huan Zhao Yuting Meng Jin Chen Bing Liu Shasha Lv Peng Chu Fan An Zifeng Wang Junxiu Huang Yajing Zhan Yuwei Liao Jinxin Lu Lingzhi Xu Jin Zhang Zhaolin Su Zhiguang Li Fangjun Wang Eric W-FLam Quentin Liu | 2021 | Cell Research2021,31,3: | 9 |
| 9 | Tom70 serves as a molecular switch to determine pathological cardiac hypertrophy显示文摘病理学的心脏的肥大是心失败的不可避免的 forerunner。不管心脏的肥大的病原学, cardiomyocyte mitochondrial 改变总是在这上下文被观察。mitochondrial 先锋蛋白质的进口调节在 pathophysiological 下面维持 mitochondrial 功能的外部膜(汤姆) 建筑群管理的 mitochondrial 的 translocases;然而,它在病理学的心脏的肥大的发展的角色仍然保持不清楚。这里,我们证明 Tom70 是在从人和试验性的动物的病理学的 hypertrophic 心的 downregulated。在 Tom70 表示的减小在 vivo 并且在 vitro 生产了不同病理学的 cardiomyocyte 肥大。指向 Tom70 的眼的 atrophy-1 的有缺点的 mitochondrial 进口触发了细胞内部的氧化应力,它导致了病理学的细胞的回答。重要地,如果有到多样的 pro-hypertrophic 的完整的抵抗的 cardiomyocytes 侮辱,增加了 Tom70 层次。一起,这些结果表明 Tom70 充当安排 hypertrophic 压力和 mitochondrial 回答决定病理学的心脏的肥大的一个分子的开关。 | Jun Li Man Qi Changming Li Dan Shi Dasheng Zhang Duanyang Xie Tianyou Yuan Jing Feng Yi Liu Dandan Liang Xinran Xu Jinjin Chen Liang Xu Hong Zhang Jiangchuan Ye Fei LV Jian Huang Luying Peng Yi-Han Chen | 2014 | Cell Research2014,24,8: | 9 |
| 10 | Human umbilical cord blood-derived stem cells and brain-derived neurotrophic factor protect injured optic nerve:viscoelasticity characterization显示文摘The optic nerve is a viscoelastic solid-like biomaterial.Its normal stress relaxation and creep properties enable the nerve to resist constant strain and protect it from injury.We hypothesized that stress relaxation and creep properties of the optic nerve change after injury.Moreover,human brain-derived neurotrophic factor or umbilical cord blood-derived stem cells may restore these changes to normal.To validate this hypothesis,a rabbit model of optic nerve injury was established using a clamp approach.At 7 days after injury,the vitreous body received a one-time injection of 50 μg human brain-derived neurotrophic factor or 1 × 106 human umbilical cord blood-derived stem cells.At 30 days after injury,stress relaxation and creep properties of the optic nerve that received treatment had recovered greatly,with pathological changes in the injured optic nerve also noticeably improved.These results suggest that human brain-derived neurotrophic factor or umbilical cord blood-derived stem cell intervention promotes viscoelasticity recovery of injured optic nerves,and thereby contributes to nerve recovery. | Xue-man Lv Yan Liu Fei Wu Yi Yuan Min Luo | 2016 | Neural Regeneration Research2016,11,4: | 9 |
| 11 | Antioxidant Effect of Human Selenium-containing Single-chain Fv in Rat Cardiac Myocytes显示文摘Reactive oxygen species(ROS) plays a key role in human heart diseases. Glutathione peroxidase(GPX) functions as an antioxidant as it catalyzes the reduction of hydroperoxide. In order to investigate the antioxidant effect of human selenium-containing single-chain Fv(Se-scFv-B3), a new mimic of GPX, a model system of hydrogen peroxide(H2O2)-induced rat cardiac myocyte damage was established. The cardiac myocyte damage was characterized in terms of cell viability, lipid peroxidation, cell membrane integrity, and intracellular H2O2 level. The Se-scFv-B3 significantly reduced H2O2-induced cell damage as shown by the increase of cell viability, the decline of malondialdehyde(MDA) production, lactate dehydrogenase(LDH) release, and intracellular H2O2 level. So Se-scFv-B3 may have a great potential in the treatment of human heart diseases induced by ROS. | HUO Rui SHI Yi XU Jun-jie YAN Fei LV Shao-wu SU Jia-ming DUAN Yu-jing FAN Jia NING Bo CONG Deng-li YAN Gang-lin LUO Gui-min WEI Jing-yan | 2009 | Chemical Research in Chinese Universities2009,25,2: | 8 |
| 12 | Miniature magnetically anchored and controlled camera system for trocar-less laparoscopy显示文摘AIM To design a miniature magnetically anchored and controlled camera system to reduce the number of trocars which are required for laparoscopy.METHODS The system consists of a miniature magnetically anchored camera with a 30° downward angle, an external magnetically anchored unit, and a vision output device. The camera weighs 12 g, measures Φ10.5 mm × 55 mm and has two magnets, a vision model, a light source, and a metal hexagonal nut. To test the prototype, the camera was inserted through a 12-mm conventional trocar in an ex vivo real liver laparoscopic training system. A trocar-less laparoscopic cholecystectomy was performed 6 times using a 12-mm and a 5-mm conventional trocar. In addition, the same procedure was performed in four canine models.RESULTS Both procedures were successfully performed using only two conventional laparoscopic trocars. The cholecystectomy was completed without any major complication in 42 min(38-45 min) in vitro and in 50 min(45-53 min) using an animal model. This camera was anchored and controlled by an external unit magnetically anchored on the abdominal wall. The camera could generate excellent image. with no instrument collisions.CONCLUSION The camera system we designed provides excellent optics and can be easily maneuvered. The number of conventional trocars is reduced without adding technical difficulties. | ding-hui dong hao-yang zhu yu luo hong-ke zhang jun-xi xiang fei xue rong-qian wu yi lv | 2017 | World Journal of Gastroenterology2017,23,12: | 8 |
| 13 | miR-137 inhibits melanoma cell proliferation through downregulation of GLO1显示文摘Late-stage melanoma is refractory to current therapies. MicroRNAs (miRNAs) can modulate many physiological and pathological processes of melanoma. Studies have demonstrated that miR-137 acts as a tumor suppressor by inhibiting the proliferation of melanoma cells through targeting multiple mRNAs. The glyoxalase system member glyoxalase 1 (GLO1) is the principal scavenging enzyme of methylglyoxal (MG), a toxic byproduct of glycolysis. Using 35S in vivo/vitro labelling analysis for dynamic proteomics (SiLAD), we found that miR-137 downregulated the expression of GLO1 in melanoma cells.Bioinformatics analysis predicted that GLO1 is a direct target of miR-137. This was validated by dual luciferase reporter assay.Quantitative RT-PCR (qRT-PCR) and western blot analysis indicated that miR-137 could decrease endogenous GLO1 expression.Furthermore, siRNA targeting of GLO1 mimicked inhibition of melanoma cell proliferation caused by miR-137 overexpression.Re-expression of GLO1 was able to restore miR-137-mediated suppression of melanoma cell proliferation. Therefore, these results suggest that miR-137 inhibits the proliferation of melanoma cells by targeting GLO1. | Na Lv Shuai Hao Chonglin Luo Alia Abukiwan Ying Hao Fei Gai Weiwei Huang Lingyun Huang Xueyuan Xiao Stefan B.Eichmüller Dacheng He | 2018 | Science China(Life Sciences)2018,61,5: | 7 |
| 14 | The RppC-AvrRppC NLR-effector interaction mediates the resistance to southern corn rust in maize显示文摘Southern corn rust(SCR),caused by the fungal pathogen Puccinia polysora,is a major threat to maize pro-duction worldwide.Efficient breeding and deployment of resistant hybrids are key to achieving durable control of SCR.Here,we report the molecular cloning and characterization of RppC,which encodes an NLR-type immune receptor and is responsible for a major SCR resistance quantitative trait locus.Further-more,we identified the corresponding avirulence effector,AvrRppC,which is secreted by P.polysora and triggers RppC-mediated resistance.Allelic variation of AvrRppC directly determines the effectiveness of RppC-mediated resistance,indicating that monitoring of AvrRppC variants in the field can guide the rational deployment of RppC-containing hybrids in maize production.Currently,RppC is the most frequently deployed SCR resistance gene in China,and a better understanding of its mode of action is crit-ical for extending its durability. | Ce Deng April Leonard James Cahill Meng Lv Yurong Li Shawn Thatcher Xueying Li Xiaodi Zhao Wenjie Du Zheng Li Huimin Li Victor Llaca Kevin Fengler Lisa Marshall Charlotte Harris Girma Tabor Zhimin Li Zhiqiang Tian Qinghua Yang Yanhui Chen Jihua Tang Xintao Wang Junjie Hao Jianbing Yan Zhibing Lai Xiaohong Fei Weibin Song Jinsheng Lai Xuecai Zhang Guoping Shu Yibo Wang Yuxiao Chang Weiling Zhu Wei Xiong Juan Sun Bailin Li Junqiang Ding | 2022 | Molecular Plant2022,15,5: | 6 |
| 15 | Nitazoxanide,an anti-parasitic drug,efficiently ameliorates learning and memory impairments in AD model mice显示文摘The pathogenesis of Alzheimer's disease(AD)is characterized by both accumulation ofβ-amyloid(AB)plaque and formation of neurofirillary tangles in the brain.Recent evidence shows that autophagy activation may potently promote intraellular Aβclearance.Thus targeting autophagy becomes a promising strategy for discovery of drug leads against AD.In the present study,we established a platform to discover autophagy stimulator and screened the lab in-house FDA-approved drug library.We found thatanti-parasitic drug nitazoxanide(NTZ)was an autophagy activator and could efficiently improve learning and memory impairmentsin APP/PS1 transgenic mice.In BV2 cells and primary cortical astrocytes,NTZ stimulated autophagy and promoted Aβclearance by inhibiting both P12K/AKT/mTOR/ULK1 and NQO1/mTOR/ULK1 signaling pathways;NTZ treatment attenuated LPS-induced inflammation by inhibiting PI3K/AKT/IKB/NFKB signaling.In SH-SY5Y cells and primary cortical neurons,NTZ treatment restrained tau hyperphosphorylation through inhibition of PI3K/AKT/GSK3βpathway.The beneficial effects and related signaling mechanisms from the in vitro studies were also observed in APP/PS1 transgenic mice following administration of NTZ(90 mg·kg^-1d,ig)for100 days.Furthermore,NTZ administration decreased Aβlevel and senile plaque formation in the hippocampus and cerebral cortexof APP/PS1 transgenic mice,and improved learning and memory impairments in Morris water maze assay.In conclusion,our results highlight the potential of NTZ in the treatment of AD. | Lei Fan Xiao-xia Qiu Zhi-yuan Zhu Jian-lu Lv Jian Lu Fei Mao Jin Zhu Jia-ying Wang Xiao-wei Guan Jing Chen Jin Ren Ji-ming Ye Yong-hua Zhao Jian Li Xu Shen | 2019 | Acta Pharmacologica Sinica2019,40,10: | 6 |
| 16 | Elevated Resting Heart Rate is Associated with Dyslipidemia in Middle-aged and Elderly Chinese显示文摘Objective To study the relationship between resting heart rate and blood lipid level.Methods A total of 9 415 subjects aged≥40 years were included in the present study.Their resting heart rate was monitored and their serum levels of triglyceride(TG),total cholesterol(TC),low density lipoprotein cholesterol(LDL-C)and high density lipoprotein cholesterol(HDL-C)were measured to define dyslipidemia according to the 2007 Chinese Guidelines on Prevention and Treatment of Dyslipidemia in Adults.Results The subjects were divided into group A with their resting heart rate<70 beats/min,group B with their resting heart rate=70-79 beats/min,group C with their resting heart rate=80-89 beats/min,and group D with their resting heart rate≥90 beats/min.High TG,TC,and LDL-C were presented across the resting heart rate(Ptrend<0.01).Multiple logistic regression analysis revealed that the risk of high TG and TC was higher in subjects with their resting heart rate≥90 beats/min than in those with their resting heart rate<70 beats/min(OR=1.42;95%CI:1.16-1.74 and OR=1.33;95%CI:1.09-1.64,respectively).Conclusion Elevated resting heart rate is associated with high TG and TC in middle-aged and elderly Chinese subjects. | SUN Ji Chao HUANG Xiao Lin DENG Xin Ru LV Xiao Fei LU Jie Li CHEN Yu Hong BI Yu Fang WANG Wei Qing XU Min NING Guang | 2014 | Biomedical and Environmental Sciences2014,27,8: | 5 |
| 17 | Corrosion resistance properties of AZ31 magnesium alloy after Ti ion implantation显示文摘Magnesium alloys have a wide range of applications in industry; however, their corrosion resistance, wear resistance, and hardness are rather poor, which limit their applications. Ti ion was implanted into the AZ31 magnesium alloy surface by metal vapor vacuum arc (MEVVA) implanter. This metal arc ion source has a broad beam and high current capabilities. The implantation energy was fixed at 45 keV and the dose was at 9 × 1017 cm?2. Through ion implantation, Ti ion implantation layer with approximately 900 nm in thickness was directly formed on the surface of AZ31 magnesium alloy, by which its surface property greatly improved. The chemical states of some typical elements of the ion implantation layer were analyzed by means of X-ray photoelectron spectroscopy (XPS), while the cross sectional morphology of the ion im-plantation layer and the phase structure were observed by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The property of corrosion resistance of the Ti ion implanted layer was studied by the CS300P electrochemistry corrosion workstation in 3.5% NaCl solution. The results showed that the property of corrosion resistance was enhanced remarkably, while the corrosion velocity was obviously slowed down. | CHEN Fei ZHOU Hai CAI Suo LV Fanxiu LI Chengming | 2007 | Rare Metals2007,26,2: | 4 |
| 18 | 7-difluoromethoxyl-5,4'-di-n-octylgenistein inhibits growth of gastric cancer cells through downregulating forkhead box M1显示文摘AIM: To investigate whether the 7-difluoromethoxyl-5, 4'-di-n-octylgenistein (DFOG), a novel synthetic genistein analogue, affects the growth of gastric cancer cells and its mechanisms. METHODS: A series of genistein analogues were prepared by difluoromethylation and alkylation, and human gastric cancer cell lines AGS and SGC-7901 cultured in vitro were treated with various concentrations of genistein and genistein analogues. The cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The cells were incubated by DFOG at different concentrations. The growth inhibitory effects were evaluated using MTT and clonogenic assay. The distribution of the phase in cell cycle was analyzed using flow cytometric analysis with propidium iodide staining. The expression of the transcription factor forkhead box M1 (FOXM1) was analyzed by reverse transcription-polymerase chain reaction and Western blotting. The expression levelsof CDK1, Cdc25B, cyclin B and p27KIP1 protein were detected using Western blotting. RESULTS: Nine of the genistein analogues had more effective antitumor activity than genistein. Among the tested analogues, DFOG possessed the strongest activity against AGS and SGC-7901 cells in vitro. DFOG significantly inhibited the cell viability and colony formation of AGS and SGC-7901 cells. Moreover, DFOG efficaciously arrested the cell cycle in G2/M phase. DFOG decreased the expression of FOXM1 and its downstream genes, such as CDK1, Cdc25B, cyclin B, and increased p27KIP1 at protein levels. Knockdown of FOXM1 by small interfering RNA before DFOG treatment resulted in enhanced cell growth inhibition in AGS cells. Up-regulation of FOXM1 by cDNA transfection attenuated DFOG-induced cell growth inhibition in AGS cells. CONCLUSION: DFOG inhibits the growth of human gastric cancer cells by down-regulating the FOXM1 expression. | Hong-Lin Xiang Fei Liu Mei-Fang Quan Jian-Guo Cao Yuan Lv | 2012 | World Journal of Gastroenterology2012,18,33: | 4 |
| 19 | Current state of myocardial tissue engineering显示文摘 | XING Yu-jie LV An-lin ZHAO Xiao-mei LI Fei WANG Li DU Juan-juan | 2009 | Chinese Medical Journal2009,,15: | 4 |
| 20 | Acrosin structure-based design,synthesis and biological activities of 7-azaindol derivatives as new acrosin inhibitors显示文摘一系列 7-azaindol 衍生物基于人的精子酵素的相应 3D 模型被设计。这些混合物被综合并且在 vitro 为他们的人的精子酵素评估了禁止的活动。混合物 7a, 7i, 7j, 7k 和 7n 对人的精子酵素显示出高度禁止的活动。三维的 structureactivity 关系通过一个 CoMFA 模型被调查,它提供了珍贵信息推进潜在的人的精子酵素禁止者的学习。 | Jun Hang Jiang Xue Fei Liu Can Hui Zhen You Jun Zhou Ju Zhu Jia Guo Lv Chun Quan Sheng | 2011 | Chinese Chemical Letters2011,22,3: | 3 |