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49篇 您的检索式:作者名="Dandan Bo"
    题名 作者 年代 出处 被引量
1Effects of mulberry leaf flavonoid and resveratrol on methane emission and nutrient digestion in sheep显示文摘As a new type of methane control agent, natural plant extract has been widely studied in recent years,but in vivo studies are few. This study was to investigate the effects of the dietary supplementation of 2 different polyphenols on the methane(CH4) emission and digestion metabolism in sheep. Ten healthy crossbred sheep(Dorper(?)× small-tailed Han ♀; BW 60.0 ± 1.73 kg) were used in a change-over design.The sheep were fed the following 3 diets in the present study: the basal diet(CON) with no supplementation; the basal diet supplemented with 2 g mulberry leaf flavonoid(MLF) per day per sheep; the basal diet supplemented with 0.25 g resveratrol(RES) per day per sheep. Both MLF and RES reduced CH4 emission scaled to metabolic weight per kilogram of DMI and CO2 output scaled to metabolic weight, but the effect of RES was significant(P < 0.05). Both MLF and RES significantly improved apparent digestibility of DM, OM, NDF, ADF, and nitrogen, but the effect of RES was significant(P < 0.05). Both MLF and RES significantly improved ME(P < 0.05) and reduced energy losses in CH4 emission(P > 0.05). In conclusion, MLF and RES can improve the digestibility of nutrients, the utilization of nutrients and energy, and reduce CH4 emission, but they are not conducive to nitrogen retention.Dandan Chen Xiaolin Chen Yan Tu Bo Wang Can Lou Tao Ma Qiyu Diao 2015Animal Nutrition2015,,4:14
2Genome-wide association analysis identified molecular markers associated with important tea flavor-related metabolites显示文摘The characteristic secondary metabolites in tea(theanine,caffeine,and catechins)are important factors contributing to unique tea flavors.However,there has been relatively little research on molecular markers related to these metabolites.Thus,we conducted a genome-wide association analysis of the levels of these tea flavor-related metabolites in three seasons.The theanine,caffeine,and catechin levels in Population 1 comprising 191 tea plant germplasms were examined,which revealed that their heritability exceeded 0.5 in the analyzed seasons,with the following rank order(highest to lowest heritabilities):(+)-catechin>(−)-gallocatechin gallate>caffeine=(−)-epicatechin>(−)-epigallocatechin-3-gallate>theanine>(−)-epigallocatechin>(−)-epicatechin-3-gallate>catechin gallate>(+)-gallocatechin.The SNPs detected by amplified-fragment SNP and methylation sequencing divided Population 1 into three groups and seven subgroups.An association analysis yielded 307 SNP markers related to theanine,caffeine,and catechins that were common to all three seasons.Some of the markers were pleiotropic.The functional annotation of 180 key genes at the SNP loci revealed that FLS,UGT,MYB,and WD40 domain-containing proteins,as well as ATP-binding cassette transporters,may be important for catechin synthesis.KEGG and GO analyses indicated that these genes are associated with metabolic pathways and secondary metabolite biosynthesis.Moreover,in Population 2(98 tea plant germplasm resources),30 candidate SNPs were verified,including 17 SNPs that were significantly or extremely significantly associated with specific metabolite levels.These results will provide a foundation for future research on important flavor-related metabolites and may help accelerate the breeding of new tea varieties.Kaixing Fang Zhiqiang Xia Hongjian Li Xiaohui Jiang Dandan Qin Qiushuang Wang Qing Wang Chendong Pan Bo Li Hualing Wu 2021Horticulture Research2021,8,1:10
3Progress of regional oceanography study associated with western boundary current in the South China Sea显示文摘Recent progress of physical oceanography in the South China Sea (SCS) associated with the western boundary current (WBC) and eddies is reviewed in this paper. It includes Argo observations of the WBC, eddy detection in the WBC based on satellite images, cross-continental shelf exchange in the WBC, eddy-current interaction, interannual variability of the WBC, air-sea interaction, the SCS throughflow (SCSTF), among others. The WBC in the SCS is strong, and its structure, variability and dynamic processes on seasonal and interannual time scales are yet to be fully understood. In this paper, we summarize progresses on the variability of the WBC, eddy-current interaction, air-sea interaction, and the SCSTF achieved in the past few years. Firstly, using the drifting buoy observations, we point out that the WBC becomes stronger and narrower after it reaches the central Vietnam coast. The possible mechanisms influencing the ocean circulation in the northern SCS are discussed, and the dynamic mechanisms that induce the countercurrent in the region of northern branch of WBC in winter are also studied quantitatively using momentum balance. The geostropic component of the WBC was diagnosed using the ship observation along 18°N, and we found that the WBC changed significantly on interannual time scale. Secondly, using the ship observations, two anti-cyclonic eddies in the winter of 2003/2004 in the northern SCS, and three anti-cyclonic eddies in the summer of 2007 along 18°N were studied. The results show that the two anti-cyclonic eddies can propagate southwestward along the continental shelf at the speed of first Rossby wave (~0.1 ms-1 ) in winter, and the interaction between the three anti-cyclonic eddies in summer and the WBC in the SCS is preliminarily revealed. Eddies on the continental shelf of northern SCS propagated southeastward with a maximum speed of 0.09 ms-1 , and those to the east of Vietnam coast had the largest kinetic energy, both of which imply strong interaction between eddy activity and WBC in the SCS. Thirdly, strong intraseasonal variability (ISV) of sea surface temperature (SST) near the WBC regions was found, and the ISV signal of SST in winter weakens the ISV signal of latent heat flux by 20%. Fourthly, the long-term change of SCSTF volume transport and its connection with the ocean circulation in the Pacific were discussed.WANG DongXiao LIU QinYan XIE Qiang HE ZhiGang ZHUANG Wei SHU YeQiang XIAO XianJun HONG Bo WU XiangYu SUI DanDan 2013Chinese Science Bulletin2013,58,11:10
4Distribution and risk factors of hand, foot, and mouth disease in Changchun, northeastern China显示文摘Hand,foot,and mouth disease(HFMD)is a public health problem,and there have been increasing numbers of outbreaks in China's Mainland since 2008.Over17,000 HFMD cases have been reported in Changchun between 2008 and 2011.This study characterized the temporal and spatial distribution of the disease and identified the risk factors for HFMD.The main findings were as follows:(i)there were significant differences in HFMD incidence among age groups,with 86.8%of reported cases in children younger than 5 years old,and boys showed a higher incidence than girls(\6 years);(ii)The disease affected the whole region and spanned a large geographic area,but there was a higher incidence in urban areas(median=242 per 10,000 persons)and urban–rural border areas(median=135 per 10,000 persons),compared with rural areas(median=75 per 10,000 persons);and(iii)the incidence of HFMD in Changchun was significantly associated with the distance to the nearest freeway,GDP per capita,and the type of township.Li Yan Xinlou Li Yaqin Yu Sake J.de Vlas Yapin Li Dandan Wang Yanli Li Yuan Yin Jing Wu Hong Liu Hong Yang Bo Li Liqun Fang Wuchun Cao 2014Chinese Science Bulletin2014,59,5:7
5Induction of OTUD4 by viral infection promotes antiviral responses through deubiquitinating and stabilizing MAVS显示文摘The activity and stability of the adapter protein MAVS (also known as VISA, Cardif and IPS-1), which critically mediates cellular antiviral responses, are extensively regulated by ubiquitination. However, the process whereby MAVS is deubiquitinated is unclear. Here, we report that the ovarian tumor family deubiquitinase 4 (OTUD4) targets MAVS for deubiquitination. Viral infection leads to the IRF3/7-dependent upregulation of OTUD4 which interacts with MAVS to remove K48-linked polyubiquitin chains, thereby maintaining MAVS stability and promoting innate antiviral signaling. Knockout or knockdown of OTUD4 impairs RNA virus-triggered activation of IRF3 and NF-κB, expression of their downstream target genes, and potentiates VSV replication in vitro and in vivo. Consistently, Cre-ER Otud4fl/fl or Lyz2-Cre Otud4fl/fl mice produce decreased levels of type I interferons and proinflammatory cytokines and exhibit increased sensitivity to VSV infection compared to their control littermates. In addition, reconstitution of MAVS into OTUD4-deficient cells restores virus-induced expression of downstream genes and cellular antiviral responses. Together, our findings uncover an essential role of OTUD4 in virus-triggered signaling and contribute to the understanding of deubiquitination-mediated regulation of innate antiviral responses.Tianzi Liuyu Keying Yu Liya Ye Zhidong Zhang Man Zhang Yujie Ren Zeng Cai Qiyun Zhu Dandan Lin Bo Zhong 2019Cell Research2019,29,1:7
6Assessing pre/post-weaning neurobehavioral development for perinatal exposure to low doses of methylmercury显示文摘Fetuses and neonates are known to be high-risk groups for Methylmercury(MeHg)exposure.MeHg can be transferred to the fetus through the placenta and to newborn offspring through breast milk.The aim of the present study was to investigate the neurotoxic effects of low doses of MeHg(1 and 5 μg/m L in drinking water) administration,from gestational day 1 to postnatal day(PND) 21,on the neurobehavioral development of rats.The results showed that the no-observed-effect level of MeHg is somewhere in the range of 1–4 μg/mL.Neurobehavioral development analysis revealed a delayed appearance of cliff drop and negative geotaxis reflexes in the 5 μg/mL MeHg exposure group.Developmental exposure to MeHg affected locomotor activity functions for the females,but not for the males,implying that the female pups were more vulnerable than the male pups.All pups exposed to 5 μg/mL of MeHg showed a significant deficit in motor coordination in the rotarod test compared with controls,and the highest accumulated concentrations of Hg were found in the cerebellum,followed by the hippocampus and cerebral cortex,indicating that the cerebellum is a possible target for MeHg toxicity.We demonstrated adverse effects of developmental exposure to MeHg associated with tissue concentrations very close to the current human body burden of this persistent and bioaccumulative compound.Jinping Cheng Masatake Fujimura Dandan Bo 2015Journal of Environmental Sciences2015,27,12:6
7Dihydrocelastrol inhibits multiple myeloma cell proliferation and promotes apoptosis through ERK1/2 and IL-6/STAT3 pathways in vitro and in vivo显示文摘多重骨髓瘤(公里) 是第二很经常的恶意的 hematological 疾病。Dihydrocelastrol (DHCE ) 被 hydrogenated celastrol 综合,从中国药用的植物 Tripterygium regelii 孤立的 treterpene。在这研究,我们首先在公里房间上报导了 DHCE 的反肿瘤活动。我们发现 DHCE 能禁止房间增长并且在 vitro 通过 caspase 依赖的方法支持 apoptosis。另外, DHCE 能使 interleukin (IL ) 的表达式失去活性 -6 和 downregulate 细胞外的调整蛋白质 kinases (ERK1/2 ) 和信号变换器和在公里的抄写 3 的使活跃之物(STAT3 ) 的 phosphorylation。它也面对 IL-6 对公里房间线保留了它的活动。而且,有 DHCE 的公里房间的处理在房间周期的 G 0/G1 阶段导致了房间的累积。尤其是, DHCE 减少了 4 和 6 在公里房间衬里的 cyclin D1 和 cyclin 依赖的 kinases 的表示。另外,它向 MM 房间线的功效能与 histone deacetylase 禁止者 panobinostat (LBH589 ) 在联合被提高,它在公里作为潜在的治疗学的策略暗示了 DHCE 和 LBH589 的联合处理的可能性。另外,有 DHCE 的 NCI-H929 忍受肿瘤的裸体老鼠的处理(10 mg/kg/d, i.p, 1-14 天) 在 vivo 导致了肿瘤生长的 73% 抑制。一起拿,我们的现在的学习的结果显示 DHCE 能禁止细胞的增长并且在骨髓瘤房间导致房间 apoptosis 通过不同机制调停了,可能通过禁止 IL-6/STAT3 和 ERK1/2 小径。并且它可以为公里病人提供一种新治疗学的选择。Liangning Hu Huiqun Wu Bo Li Dongliang Song Guang Yang Gege Chen Bingqian Xie Zhijian Xu Yong Zhang Dandan Yu Jun Hou Wenqin Xiao Xi Sun Gaomei Chang Yiwen Zhang Lu Gao Bojie Dai Yi Tao Jumei Shi Weiliang Zhu 2017Acta Biochimica et Biophysica Sinica2017,49,5:5
8Targeting the PI3K/Akt/mTOR signaling pathway by pterostilbene attenuates mantle cell lymphoma progression显示文摘Dandan Yu Yong Zhang Gege Chen Yongsheng Xie Zhijian Xu Shuaikang Chang Liangning Hu Bo Li Wenxuan Bu Yingcong Wang Wenqin Xiao Xi Sun Gaomei Chang Lu Gao Sujing Qiang Xiaosong Wu Weiliang Zhu Jumei Shi 2018Acta Biochimica et Biophysica Sinica2018,50,8:4
9Chemical composition and antimicrobial activity of essential oil isolated from the cultured mycelia of Ganoderma japonicum显示文摘Objective:To explore a new natural antibiotic. Methods:The chemical composition of the essential oil from Ganoderma japonicum (G. japonicum) mycelia was analyzed by gas chromatography-mass spectrometry(GC-MS). The antimicrobial activity of the oil was evaluated against eighteen microorganisms,including bacteria,mildew and yeast by using a disc diffusion method. Furthermore,the minimum inhibitory concentrations(MIC) and the minimum bactericidal concentrations(MBC) of the essential oil against twelve clinical pathogens were determined. Results:The main components of the oil were nerolidol,decadienal,linalool and benzyl alcohol. The antimicrobial results indicated that the oil inhibited all the tested bacterium,especially Methicillin-resistant Staphylococcus aureus (MRSA) in which the antibacterial activity exhibited a MBC of 1.03 mg/ml. Conclusion:The essential oil of G. japonicum mycelium has significant inhibitory activity. It is a potential medicinal resource that can be used as a natural antibiotic.Dandan Liu Zheng Hu Zhigang Liu Bo Yang Wenjuan Tu Liang Li 2009Journal of Nanjing Medical University2009,23,3:3
10Detailed resume of RNA m^(6)A demethylases显示文摘N6-Methyladenosine(m^(6)A) is the most abundant internal modification in eukaryotic mRNA,playing critical role in various bioprocesses. Like other epigenetic modifications, m^(6)A modification can be catalyzed by the methyltransferase complex and erased dynamically to maintain cells homeostasis. Up to now, only two m^(6)A demethylases have been reported, fat mass and obesity-associated protein(FTO)and alkylation protein AlkB homolog 5(ALKBH5), involving in a wide range of mRNA biological progress, including mRNA shearing, export, metabolism and stability. Furthermore, they participate in many significantly biological signaling pathway, and contribute to the progress and development of cancer along with other diseases. In this review, we focus on the studies about structure, inhibitors development and biological function of FTO and ALKBH5.Dandan Shen Bo Wang Ya Gao Lijuan Zhao Yaping Bi Jinge Zhang Ning Wang Huiqin Kang Jingru Pang Ying Liu Luping Pang Zhe-Sheng Chen Yi-Chao Zheng Hong-Min Liu 2022Acta Pharmaceutica Sinica B2022,12,5:3
11Characterization of viromes within mosquito species in China显示文摘Mosquitoes are vectors of multiple disease-causing agents that cause worldwide outbreaks of serious infectious diseases in both humans and animals. These arboviral agents include Dengue virus (DENV), Zika virus (ZIKV), chikungunya virus, yellow fever virus, Japanese encephalitis virus (JEV),and Rift Valley fever virus. Thus, mosquitoes are key to the study of viral origin, spread, and the epidemic tendency of these infectious diseases (Hall and Macdonald, 2016).Jiang Du Fan Li Yelin Han Shihong Fu Bo Liu Nan Shao Haoxiang Su Weijia Zhang Dandan Zheng Wenwen Lei Jie Dong Lilian Sun Ying He Jianmin Wang Fan Yang Huanyu Wang Guodong Liang Zhiqiang Wu Qi Jin 2020Science China(Life Sciences)2020,63,7:2
12Reprogramming of phytopathogen transcriptome by a non-bactericidal pesticide residue alleviates its virulence in rice显示文摘Bacteria equipped with virulence systems based on highly bioactive small molecules can circumvent their host's defense mechanisms.Pathogens employing this strategy are currently threatening global rice production.In the present study,variations in the virulence of the highly destructive Barkholderiaplantarii were observed in different rice-producing regions.The environment-linked variation was not attributable to any known host-related or external factors.Co-occurrence analyses indicated a connection between reduced virulence and 5-Amino-l,3,4-thiadiazole-2-thiol(ATT),a non-bactericidal organic compound.ATT,which accumulates in rice plants during metabolization of specific agrochemicals,was found to reduce virulence factor secretion by B.plantarii up to 88.8%and inhibit pathogen virulence by hijacking an upstream signaling cascade.Detailed assessment of the newly discovered virulence inhibitor resulted in mechanistic insights into positive effects of ATT accumulation in plant tissues.Mechanisms of virulence alleviation were deciphered by integrating high-throughput data,gene knockout mutants,and molecular interaction assays.TroK,a histidine protein kinase in a two-component system that regulates virulence factor secretion,is likely the molecular target antagonized by ATT.Our findings provide novel insights into virulence modulation in an important plant-pathogen system that relies on the host's metabolic activity and subsequent signaling interference.Haruna Matsumoto Yuan Qian Xiaoyan Fan Sunlu Chen Yanxia Nie Kun Qiao Dandan Xiang Xinzhong Zhang Meng Li Bo Guo Peilin Shen Qiangwei Wang Yunlong Yu Tomislav Cemava Mengcen Wang 2022Fundamental Research2022,2,2:2
13Volatiles produced by bacteria alleviate antagonistic effects of one associated fungus on Dendroctonus valens larvae显示文摘Dear Editor,Microbes play important roles in various symbiotic systems(Douglas,2015;Xing et al.,2017;Zhu and Wu,2016;Xu et al.,2016a).In the symbiosis formed by bark beetles and microbial associates,beetles formed symbiotic relationships with some fungi including mutualistic and antagonistic ones(Cheng et al.,2015;Lu et al.,2016;Scott et al.,2008),and these interactions,indirectly affected by a third or even fourth participator in a community context,may change from antagonistic ones to mutualistic ones.For example,associated bacterial volatiles can alleviate antagonisticShanshan Wang Fangyuan Zhou Bo Wang Dandan Xu Qingjie Cao Min Lu Jianghua-Sun 2017Science China(Life Sciences)2017,60,8:2
14A New View of the Initiation and Propagation in Anionic Polymerization显示文摘这个工作证实开始和 anionic 聚合的繁殖机制的新看法以前求婚了,基于在自我的帮助下的苯乙烯和甲基苯乙烯的 anionic 体积聚合的调查设计了 microflow 设备并且由 GPC 并且在 situ 7Li NMR 描绘了。趋于形成聚集 hexameric 的结构并且弄平基于前者形成巨大的聚集的结构,被发现那 n-BuLi。开始者的这些聚集能直接开始 anionic 聚合并且形成 supramolecule 聚集。supramolecule 聚集不可避免地堵住了单体的散开到离子对并且导致了一个静止变换的平台。然后,集成者完全被分裂进相等的聚集二进制代码的种类,并且聚合在结束前很快再继续。Tetrahydrofuran (THF ) 充当了电子捐赠者,它能把电子云推到李阳离子并且做相当松开并且便于单体插入在里面的活跃种类的聚集的戒指。因此,小 THF 能极大地支持 anionic 聚合。然而, THF 的进一步的增加可能堵住在离子对和减少之间的隧道繁殖率。活跃种类的聚集的结构仅仅在 anionic 聚合期间取决于在聚合前被形成的开始者聚集,这也被发现。Anna Zheng Bo Chen Dihang Hu Yong Guan Dafu Wei Shuzhao Li Dandan Ji 2013Chinese Journal of Chemistry2013,31,3:2
15Differential expression of bone morphogenetic protein 5 in human lung squamous cell carcinoma and adenocarcinoma显示文摘骨头形态基因的蛋白质(BMP ) 在肿瘤房间增长,转移,和侵略起重要作用。然而,在有 non-small-cell 肺癌症(NSCLC ) 和他们与 NSCLC 致病的关联的病人的 BMP 的表示模式还没被检验。在这研究,在 NSCLC 纸巾的 BMP 家庭成员的 mRNA 层次被分析,结果证明分别地, BMP5 和 BMP7 的 mRNA 层次与在相应 noncancerous 纸巾的那些相比在肿瘤纸巾显著地下面调整、起来调整。有趣地, BMP5 的 mRNA 水平在肺比那在肺腺癌纸巾是显著地更高的有鳞的房间癌纸巾。而且,从 immunohistochemistry 分析的结果比在肺在肺腺癌证实了 BMP5 蛋白质的更强壮的表示有鳞的房间癌。我们的调查结果建议 BMP5 可能为有 NSCLC 的病人是潜在的预示的 biomarker 或治疗学的目标。Taoran Deng Dandan Lin Man Zhang Qingchuan Zhao Weina Li Bo Zhong Yu Deng Xiangning Fu 2015Acta Biochimica et Biophysica Sinica2015,47,7:2
16The S 1P, receptor-selective agonist CYM-5442 reduces the severity of acute GVHD byinhibiting macrophage recruitment显示文摘FTY720,为五已知的 sphingosine-1-phosphate (S1P ) 中的四个的收缩筋受体,被报导了禁止尖锐 graft-versus-host 疾病(aGVHD ) 。因为 FTY720 通过多重 S1P 受体工作,通过至少一这些受体的行动的机制可以说明它的副作用。因此,更选择的 S1P 受体调节的人被需要评估不同 S1P 受体和他们的治疗学的功效的角色。在这研究,我们调查了 S1P 1-selective 收缩筋的效果, CYM-5442,在 aGVHD 的前进上。我们显示出显著地禁止的那 CYM-5442 但是没阻止 aGVHD。CYM-5442 没影响施主 T 细胞的渗入进目标器官,当在 GVHD 器官的巨噬细胞的数字被 CYM-5442 处理显著地减少时。在 vivo 增长,试金证明巨噬细胞的增长没被 CYM-5442 压制。用人的 endothelial 房间的进一步的研究在 endothelial 房间表明了那 CYM-5442 处理 downregulated CCL2 和 CCL7 表情,因此减少单核白血球,从纸巾,巨噬细胞发源的迁居。我们的数据在 aGVHD 和它行动的可能的机制表明 S1P 1-selective 收缩筋的治疗学的功效。结果建议进一步的调查为 aGVHD 作为潜在的治疗学的政体关于 CYM-5442 被需要。Qiao Cheng Shoubao Ma Dandan Lin Yu Mei Huanle Gong Lei Lei Yuanyuan Chen Ye Zhao Bo Hut Yan Wu Xiao Yu Lixiang Zhao Haiyan Liu 2015Cellular & Molecular Immunology2015,12,6:2
17Predicting the device performance of the perovskite solar cells from the experimental parameters through machine learning of existing experimental results显示文摘The performance of the metal halide perovskite solar cells(PSCs)highly relies on the experimental parameters,including the fabrication processes and the compositions of the perovskites;tremendous experimental work has been done to optimize these factors.However,predicting the device performance of the PSCs from the fabrication parameters before experiments is still challenging.Herein,we bridge this gap by machine learning(ML)based on a dataset including 1072 devices from peer-reviewed publications.The optimized ML model accurately predicts the PCE from the experimental parameters with a root mean square error of 1.28%and a Pearson coefficientr of 0.768.Moreover,the factors governing the device performance are ranked by shapley additive explanations(SHAP),among which,A-site cation is crucial to getting highly efficient PSCs.Experiments and density functional theory calculations are employed to validate and help explain the predicting results by the ML model.Our work reveals the feasibility of ML in predicting the device performance from the experimental parameters before experiments,which enables the reverse experimental design toward highly efficient PSCs.Yao Lu Dong Wei Wu Liu Juan Meng Xiaomin Huo Yu Zhang Zhiqin Liang Bo Qiao Suling Zhao Dandan Song Zheng Xu 2023Journal of Energy Chemistry2023,,2:1
18Excessive apoptosis and ROS induced by ethionine affect neural cell viability and differentiation显示文摘The central nervous system(CNS)diseases are still a major cause of morbidity and mortality throughout the world,which imposes heavy burden on the development of society.Ethionine is a non-proteinogenic amino acid having similar chemical structure and activity to that of methionine,with which it competes.Previous studies have confirmed that ethionine affects various cellular functions by inhibiting the biosynthesis of proteins,RNA,DNA,and phospholipids,or all of them.The relationship of ethionine with some CNS diseases,including neural tube defects,has been investigated recently.However,the detailed effects of ethionine on the nerve cell bioactivities and the underlying mechanisms have not been fully explored.Herein,we systematically investigated the influences of ethionine on the proliferation,differentiation,and apoptosis of neural stem cells(NSCs)and post-mitotic nerve cells.We demonstrated that ethionine inhibited cell viability by disrupting the balance between proliferation and apoptosis,prevented NSCs from differentiating into neurons and astrocytes,and blocked cell progression from G1 to S phase via reducing cyclin D1 function in nerve cells including NSCs,a mouse hippocampal neuron cell line(HT-22),and a mouse brain neuroma cell line(Neuro-2a).We speculated that the inhibitory effect of ethionine on cell viability and differentiation are associated with increased reactive oxygen species production.Our results also supported the concept that ethionine may be an underlying cause of abnormal folate metabolism-induced CNS diseases.Our findings may provide important direction for the application of abnormal folate metabolism-induced CNS diseases in future NSC-based therapies.Li Zhang Dandan Li Juan Zhang Ping Yan Xueqin Liu Lei Wang Ajab Khan Zhizhen Liu Jianbing Mu Jun Xu Bo Niu Jun Xie 2020Acta Biochimica et Biophysica Sinica2020,52,10:1
19Hydrogen selenide,a vital metabolite of sodium selenite,uncouples the sulfilimine bond and promotes the reversal of liver fibrosis显示文摘Sodium selenite has alleviating effects on liver fibrosis;however,its therapeutic molecular mechanism remains unclear.Herein,hydrogen selenide,a major metabolite of Na_(2)SeO_(3),was tested to uncouple the sulfilimine bond in collagen IV,the biomarker of liver fibrosis.A mouse model of liver fibrosis was constructed via a CCl_(4)-induced method,followed by the administration of 0.2 mg kg−1 Na_(2)SeO_(3)via gavage three times per week for 4 weeks.Changes in H2Se,NADPH,and H_(2)O_(2)levels were monitored in real time by using NIR-H2Se,DCI-MQ-NADPH,and H_(2)O_(2)probes in vivo,respectively.H_(2)Se continuously accumulated in the liver throughout the Na_(2)SeO_(3)treatment period,but the levels of NADPH and H_(2)O_(2)decreased.The expression of collagen IV was analyzed through Western blot and liquid chromatography-mass spectrometry.Results confirmed that the sulfilimine bond of collagen IV in the fibrotic mouse livers could be broken by H2Se with the Na_(2)SeO_(3)treatment.Therefore,the therapeutic effect of Na_(2)SeO_(3)on liver fibrosis could be mainly attributed to H_(2)Se that uncoupled the sulfilimine bond to induce collagen IV degradation.This study provided a reasonable explanation for the molecular mechanism of the in vivo function of Na_(2)SeO_(3)and the prevention of liver fibrosis by administering inorganic selenium.Dongrui Luan Zengteng Zhao Dandan Xia Qiuling Zheng Xiaonan Gao Kehua Xu Bo Tang 2021Science China(Life Sciences)2021,64,3:1
20Bone Marrow Stromal Cells Control the Growth of Hepatic Stellate Cells in?vitro显示文摘Lijun Shi Guozhong Li Jinghua Wang Bo Sun Liming Yang Guangyou Wang Dandan Wang Lili Mu Hui Chen Lianhong Jin Nikolaos Kostulas Hulun Li 2008Digestive Diseases and Sciences2008,,11:1
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