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89篇 您的检索式:作者名="Hang Fu"
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1Isolation and characterization of dengue virus serotype 2 from the large dengue outbreak in Guangdong, China in 2014显示文摘Dengue has been well recognized as a global public health threat,but only sporadic epidemics and imported cases were reported in recent decades in China.Since July 2014,an unexpected large dengue outbreak has occurred in Guangdong province,China,resulting in more than 40000 patients including six deaths.To clarify and characterize the causative agent of this outbreak,the acute phase serum from a patient diagnosed with severe dengue was subjected to virus isolation and high-throughput sequencing(HTS).Traditional real-time RT-PCR and HTS with Ion Torrent PGM detected the presence of dengue virus serotype 2(DENV-2).A clinical DENV-2 isolate GZ05/2014 was obtained by culturing the patient serum in mosquito C6/36 cells.The complete genome of GZ05/2014 was determined and deposited in Gen Bank under the access number KP012546.Phylogenetic analysis based on the complete envelope gene showed that the newly DENV-2 isolate belonged to Cosmopolitan genotype and clustered closely with other Guangdong strains isolated in the past decade.No amino acid mutations that are obviously known to increase virulence or replication were identified throughout the genome of GZ05/2014.The high homology of Guangdong DENV-2 strains indicated the possibility of establishment of local DENV-2 circulation in Guangdong,China.These results help clarify the origin of this epidemic and predict the future status of dengue in China.ZHAO Hui ZHAO Ling Zhai JIANG Tao LI Xiao Feng FAN Hang HONG Wen Xin ZHANG Yu ZHU Qin YE Qing TONG Yi Gang CAO Wu Chun ZHANG Fu Chun QIN Cheng Feng 2014Science China(Life Sciences)2014,57,12:21
2Selective Ferroptosis Inhibitor Liproxstatin-1 Attenuates Neurological Deficits and Neuroinflammation After Subarachnoid Hemorrhage显示文摘Ferroptosis is a form of iron-dependent regulated cell death.Evidence of its existence and the effects of its inhibitors on subarachnoid hemorrhage(SAH)is still lacking.In the present study,we found that liproxstatin-1 protected HT22 cells against hemin-induced injury by protecting mitochondrial functions and ameliorating lipid peroxidation.In in vivo experiments,we demonstrated the presence of characteristic shrunken mitochondria in ipsilateral cortical neurons after SAH.Moreover,liproxstatin-1 attenuated the neurological deficits and brain edema,reduced neuronal cell death,and restored the redox equilibrium after SAH.The inhibition of ferroptosis by liproxstatin-1 was associated with the preservation of glutathione peroxidase 4 and the downregulation of acylCoA synthetase long-chain family member 4 as well as cyclooxygenase 2.In addition,liproxstatin-1 decreased the activation of microglia and the release of IL-6,IL-1 b,and TNF-a.These data enhance our understanding of cell death after SAH and shed light on future preclinical studies.Yang Cao Yin Li Chao He Feng Yan Jian-Ru Li Hang-Zhe Xu Jian-Feng Zhuang Hang Zhou Yu-Cong Peng Xiong-Jie Fu Xiao-Yang Lu Yuan Yao Yu-Yu Wei Yun Tong Yi-Fu Zhou Lin Wang 2021Neuroscience Bulletin2021,37,4:16
3Oral berberine improves brain dopa/dopamine levels to ameliorate Parkinson’s disease by regulating gut microbiota显示文摘The phenylalanine-tyrosine-dopa-dopamine pathway provides dopamine to the brain.Iin this process,tyrosine hydroxylase(TH)isthe rate-limiting enzyme that hydroxylates tyrosine and generates levodopa(L-dopa)with tetranydrobiopterin(BH_(4))as a coenzyme.Here,we show that oral berberine(BBR)might supply H^(·) through dihydroberberine(reduced BBR produced by bacterial nitroreductase)and promote the production of BHl from dihydrobiopterin;the increased BH,enhances TH activity,which accelerates the production of L-dopa by the gut bacteria.Oral BBR acts in a way similar to vitamins.The L-dopa produced by theintestinal bacteria enters the brain through the circulation and is transformed to dopamine.To verify the gut-brain dialog activatedby BBR's effect,Enterococcus foecalis or Enterococcus faecium was transplanted into Parkinson's disease(PD)mice.The bacteriasignificantly increased brain dopamine and ameliorated PD manifestation in mice;additionally,combination of BBR with bacteriashowed better therapeutic effect than that with bacteria alone.Moreover,2,4,6-trimethy-pyranylium tetrafluoroborate(TMP-TFB)-derivatized matrix-assisted laser desorption mass spectrometry(MALDI-MS)imaging of dopamine identihed elevated striataldopamine levels in mouse brains with oral Enterococcus,and BBR strengthened the imaging intensity of brain dopamine.Theseresults demonstrated that BBR was an agonist of TH in Enterococcus and could lead to the production of L-dopa in the gut.Furthermore,a study of 28 patients with hyperlipidemia conhrmed that oral BBR increased bloodfecal L-dopa by the intestinalbacteria.Hence,BBR might improve the brain function by upregulating the biosynthesis of-dopa in the gut microbiota through avitamin-like effect.Yan Wang Qian Tong Shu-Rong Ma Zhen-Xiong Zhao Li-Bin Pan Lin Cong Pei Han Ran Peng Hang Yu Yuan Lin Tian-Le Gao Jia-Wen Shou Xiao-Yang Li Xian-Feng Zhang Zheng-Wei Zhang Jie Fu Bao-Ying Wen Jin-Bo Yu Xuetao Cao Jian-Dong Jiang 2021Signal Transduction and Targeted Therapy2021,6,3:16
4Machining the Integral Impeller and Blisk of Aero-Engines:A Review of Surface Finishing and Strengthening Technologies显示文摘The integral impeller and blisk of an aero-engine are high performance parts with complex structure and made of difficult-to-cut materials. The blade surfaces of the integral impeller and blisk are functional surfaces for power transmission, and their surface integrity has significant effects on the aerodynamic efficiency and service life of an aero-engine. Thus, it is indispensable to finish and strengthen the blades before use. This paper presents a comprehensive literature review of studies on finishing and strengthening technologies for the impeller and blisk of aero-engines. The review includes independent and integrated finishing and strengthening technologies and discusses advanced rotational abrasive flow machining with back-pressure used for finishing the integral impeller and blisk. A brief assessment of future research problems and directions is also presented.Youzhi Fu Hang Gao Xuanping Wang Dongming Guo 2017Chinese Journal of Mechanical Engineering2017,30,3:15
5Morphine enhances purine nucleotide catabolism in vivo and in vitro显示文摘目的: 在嘌呤 nucleotidecatabolism.Methods 上调查吗啡的效果和机制: 在文化的吗啡依赖和退却和老鼠 C6 glioma 房间的老鼠模型被使用。在血浆的尿酸的集中被 uricase-rapmethod 测量,腺苷脱氨基酶( ADA )和在血浆和纸巾的黄质 oxidase ( XO )被 ADA 和 XO 测试 kit.RT-PCR 测量,弄污的 RT-PCR-Southern 被用来在纸巾和 C6 cells.Results 检验 ADA 和 XO 基因抄本的相对数量:(i)血浆的集中尿酸在管理吗啡的组显著地更高级( P < 0.05 )比控制组;( i i )在吗啡期间,在血浆的管理和退却时期, ADA 和 XO 集中显著地增加了( P < 0.05 );( iii )在顶骨脑叶的 ADA 和 XO 的数量,当在退却的那些纸巾的 ADA 和 XO 的水平组织时,增加的管理吗啡的组的肝,小肠,和骨胳的肌肉减少了;( iv )在顶骨脑叶的 ADA 和 XO 基因的抄本,肝,小肠,并且骨胳的肌肉在管理吗啡的组是更高的。在那些纸巾的 ADA 和 XO 基因的表示在吗啡退却期间回到了控制水平,与骨胳的肌肉的异常;并且吗啡处理导致的 ADA 和 XO 基因的表达式的(v) theupregulation 能被 naloxone.Conclusion 颠倒:嘌呤核苷酸新陈代谢力量上的吗啡的效果是吗啡的重要、新生物化学的药理学机制行动。Chang LIU Jian-kai LIU Mu-jie KAN Lin GAO Hai-ying FU Hang ZHOU Min HONG 2007Acta Pharmacologica Sinica2007,28,8:12
6Morinda officinalis oligosaccharides increase serotonin in the brain and ameliorate depression via promoting 5-hydroxytryptophan production in the gut microbiota显示文摘Morinda officinalis oligosaccharides(MOO) are an oral drug approved in China for the treatment of depression in China. However, MOO is hardly absorbed so that their anti-depressant mechanism has not been elucidated. Here, we show that oral MOO acted on tryptophan → 5-hydroxytryptophan(5-HTP) → serotonin(5-HT) metabolic pathway in the gut microbiota. MOO could increase tryptophan hydroxylase levels in the gut microbiota which accelerated 5-HTP production from tryptophan;meanwhile, MOO inhibited 5-hydroxytryptophan decarboxylase activity, thus reduced 5-HT generation,and accumulated 5-HTP. The raised 5-HTP from the gut microbiota was absorbed to the blood, and then passed across the blood-brain barrier to improve 5-HT levels in the brain. Additionally, pentasaccharide,as one of the main components in MOO, exerted the significant anti-depressant effect through a mechanism identical to that of MOO. This study reveals for the first time that MOO can alleviate depression via increasing 5-HTP in the gut microbiota.Zheng-Wei Zhang Chun-Sheng Gao Heng Zhang Jian Yang Ya-Ping Wang Li-Bin Pan Hang Yu Chi-Yu He Hai-Bin Luo Zhen-Xiong Zhao Xin-Bo Zhou Yu-Li Wang Jie Fu Pei Han Yu-Hui Dong Gang Wang Song Li Yan Wang Jian-Dong Jiang Wu Zhong 2022Acta Pharmaceutica Sinica B2022,12,8:12
7Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective.Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU 2019Science China Earth Sciences2019,62,11:11
8A novel anticancer property of Lycium barbarum polysaccharide in triggering ferroptosis of breast cancer cells显示文摘Breast cancer is one of the most malignant tumors and is associated with high mortality rates among women.Lycium barbarum polysaccharide(LBP)is an extract from the fruits of the traditional Chinese herb,L.barbarum.LBP is a promising anticancer drug,due to its high activity and low toxicity.Although it has anticancer properties,its mechanisms of action have not been fully established.Ferroptosis,which is a novel anticancer strategy,is a cell death mechanism that relies on iron-dependent lipid reactive oxygen species(ROS)accumulation.In this study,human breast cancer cells(Michigan Cancer Foundation-7(MCF-7)and MD Anderson-Metastatic Breast-231(MDA-MB-231))were treated with LBP.LBP inhibited their viability and proliferation in association with high levels of ferroptosis.Therefore,we aimed to ascertain whether LBP reduced cell viability through ferroptosis.We found that the structure and function of mitochondria,lipid peroxidation,and expression of solute carrier family 7 member 11(SLC7 A11,also known as x CT,the light-chain subunit of cystine/glutamate antiporter system X_(c)^(-))and glutathione peroxidase 4(GPX4)were altered by LBP.Moreover,the ferroptosis inhibitor,Ferrostatin-1(Fer-1),rescued LBP-induced ferroptosis-associated events including reduced cell viability and glutathione(GSH)production,accumulation of intracellular free divalent iron ions and malondialdehyde(MDA),and down-regulation of the expression of x CT and GPX4.Erastin(x CT inhibitor)and RSL3(GPX4 inhibitor)inhibited the expression of x CT and GPX4,respectively,which was lower after the co-treatment of LBP with Erastin and RSL3.These results suggest that LBP effectively prevents breast cancer cell proliferation and promotes ferroptosis via the x CT/GPX4 pathway.Therefore,LBP exhibits novel anticancer properties by triggering ferroptosis,and may be a potential therapeutic option for breast cancer.Xing DU Jingjing ZHANG Ling LIU Bo XU Hang HAN Wenjie DAI Xiuying PEI Xufeng FU Shaozhang HOU 2022Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022,23,4:10
9Adhesion at cerium doped metal-ceramic α-Fe/WC interface:A first-principles calculation显示文摘Electronic structure, stability and bonding strength of a-Fe/WC interfaces between Ce-doped and undoped WC cermet coating were investigated by first-principles methodology based on densityfunctional theory(DFT). Based on the minimum mismatched lattices, the relatively stable interface that forms between WC(100) and bcc a-Fe(100) was employed to predict the atomic structure, bonding,and ideal work of adhesion. There are three possible positions which were defined as OT, MT, HCP, taking into account both C-and W-terminations. The sequence of structural stability tested in this paper was:MT > OT > HCP. After full relaxation, the results show that only the first and second layers of the interface have significant influence on the electronic structure between Fe and WC. The interaction of Ce elements at the interface is achieved by comparing the interface structure and electronic structure of the doped and undoped interfaces. Ce doped interface possesses a shorter interface distance(d0 = 0.09776 nm)and a larger interface energy(Wad = 8.98 J/m2) than undoped interface(Wad = 8.76 J/m2,d0= 0.10134 nm).Charge density distribution and difference, and density of states were utilized to characterize the electronic properties and determine the interfacial bonding.The results demonstrate that strong covalent bonding existed in the undoped interface, while a mixed covalent/ionic bonding was formed at the Ce-doped interface.Guiying Yang Yan Liu Zongqiu Hang Naiyuan Xi Hao Fu Hui Chen 2019Journal of Rare Earths2019,37,7:10
10Inactivation of SACE_3446, a TetR family transcriptional regulator, stimulates erythromycin production in Saccharopolyspora erythraea显示文摘Erythromycin A is a widely used antibiotic produced by Saccharopolyspora erythraea;however,its biosynthetic cluster lacks a regulatory gene,limiting the yield enhancement via regulation engineering of S.erythraea.Herein,six TetR family transcriptional regulators(TFRs)belonging to three genomic context types were individually inactivated in S.erythraea A226,and one of them,SACE_3446,was proved to play a negative role in regulating erythromycin biosynthesis.EMSA and qRT-PCR analysis revealed that SACE_3446 covering intact N-terminal DNA binding domain specifically bound to the promoter regions of erythromycin biosynthetic gene eryAI,the resistant gene ermE and the adjacent gene SACE_3447(encoding a longchain fatty-acid CoA ligase),and repressed their transcription.Furthermore,we explored the interaction relationships of SACE_3446 and previously identified TFRs(SACE_3986 and SACE_7301)associated with erythromycin production.Given demonstrated relatively independent regulation mode of SACE_3446 and SACE_3986 in erythromycin biosynthesis,we individually and concomitantly inactivated them in an industrial S.erythraea WB.Compared with WB,the WBΔ3446 and WBΔ3446Δ3986 mutants respectively displayed 36%and 65%yield enhancement of erythromycin A,following significantly elevated transcription of eryAI and ermE.When cultured in a 5 L fermentor,erythromycin A ofWBΔ3446 and WBΔ3446Δ3986 successively reached 4095 mg/L and 4670 mg/L with 23%and 41%production improvement relative to WB.The strategy reported here will be useful to improve antibiotics production in other industrial actinomycete.Hang Wu Yansheng Wang Li Yuan Yongrong Mao Weiwei Wang Lin Zhu Panpan Wu Chengzhang Fu Rolf Muller David T.Weaver Lixin Zhang Buchang Zhang 2016Synthetic and Systems Biotechnology2016,1,1:7
11Genome-wide variants of Eurasian facial shape differentiation and a prospective model of DNA based face prediction显示文摘It is a long-standing question as to which genes define the characteristic facial features among different ethnic groups. In this study, we use Uyghurs, an ancient admixed population to query the genetic bases why Europeans and Han Chinese look different. Facial traits were analyzed based on high-dense 3D facial images; numerous biometric spaces were examined for divergent facial features between European and Han Chinese, ranging from inter-landmark distances to dense shape geometrics. Genome-wide association studies(GWAS) were conducted on a discovery panel of Uyghurs. Six significant loci were identified, four of which, rs1868752, rs118078182, rs60159418 at or near UBASH3B, COL23A1, PCDH7 and rs17868256 were replicated in independent cohorts of Uyghurs or Southern Han Chinese. A prospective model was also developed to predict 3D faces based on top GWAS signals and tested in hypothetic forensic scenarios.Lu Qiao Yajun Yang Pengcheng Fu Sile Hu Hang Zhou Shouneng Peng Jingze Tan Yan Lu Haiyi Lou Dongsheng Lu Sijie Wu Jing Guo Li Jin Yaqun Guan Sijia Wang Shuhua Xu Kun Tang 2018Journal of Genetics and Genomics2018,45,8:7
12Two case reports and literature review for hepatic epithelioid angiomyolipoma: Pitfall of misdiagnosis显示文摘BACKGROUND Hepatic epithelioid angiomyolipoma(HEAML) is a rare liver disease and is easily misdiagnosed. Enhanced recognition of HEAML is beneficial to the differential diagnosis of rare liver diseases.CASE SUMMARY We presented two cases of HEAML in Changzheng Hospital, Naval Medical University, and then collected and analyzed all reports about HEAML recorded in PubMed, MEDLINE, China Science Periodical Database, and VIP database from January 2000 to March 2018. A total of 409 cases of HEAML in 97 reports were collected, with a ratio of men to women of 1:4.84 and an age range from 12 years to 80 years(median 44 years). Among the patients with clinical symptoms mentioned, 61.93%(205/331) were asymptomatic, 34.74%(115/331) showed upper or right upper quadrant abdomen discomfort, while a few of them showed abdominal mass, gastrointestinal symptoms, low fever, or weight loss. The misdiagnosis rate of HEAML was as high as 40.34%(165/409) due to its nonspecific imaging findings. Most of the tumors were solitary and round in morphology, with clear boundaries. Ultrasound scan indicated low echo with internal nonuniformity and rich blood supply in most cases. Computer tomography/magnetic resonance imaging enhanced scan showed varied characteristics. The ratio of fast wash-in and fast wash-out, fast wash-in and slow wash-out, and delayed enhancement was roughly 4:5:1. A definite diagnosis of HEAML depended on the pathological findings of the epithelioid cells in lesions and the expression of human melanoma black 45, smooth muscle actin,melanoma antigen, and actin by immunohistochemical staining. HEAML had a relatively low malignant rate of 3.91%. However, surgical resection was the main treatment for HEAML, due to the difficulty diagnosing before operation.CONCLUSION HEAML is a rare and easily misdiagnosed disease, and it should be diagnosed carefully, taking into account clinical course, imaging, pathological,and immunohistochemical findings.Jia-Xi Mao Fei Teng Cong Liu Hang Yuan Ke-Yan Sun You Zou Jia-Yong Dong Jun-Song Ji Jun-Feng Dong Hong Fu Guo-Shan Ding Wen-Yuan Guo 2019World Journal of Clinical Cases2019,7,8:6
13Berberine treats atherosclerosis via a vitamine-like effect downregulating Choline-TMA-TMAO production pathway in gut microbiota显示文摘Trimethylamine-N-oxide(TMAO)derived from the gut microbiota is an atherogenic metabolite.This study investigates whether or not berberine(BBR)could reduce TMAO production in the gut microbiota and treat atherosclerosis.Effects of BBR on TMAO production in the gut microbiota,as well as on plaque development in atherosclerosis were investigated in the culture of animal intestinal bacterial,HFD-fed animals and atherosclerotic patients,respectively.We found that oral BBR in animals lowers TMAO biosynthesis in intestine through interacting with the enzyme/co-enzyme of choline-trimethylamine lyase(CutC)and flavincontaining monooxygenase(FMO)in the gut microbiota.This action was performed by BBR’s metabolite dihydroberberine(a reductive BBR by nitroreductase in the gut microbiota),via a vitamine-like effect down-regulating Choline-TMA-TMAO production pathway.Oral BBR decreased TMAO production in animal intestine,lowered blood TMAO and interrupted plaque formation in blood vessels in the HFD-fed hamsters.Moreover,21 patients with atherosclerosis exhibited the average decrease of plaque score by 3.2%after oral BBR(0.5 g,bid)for 4 months(^(*)P<0.05,n=21);whereas the plaque score in patients treated with rosuvastatin plus aspirin,or clopidogrel sulfate or ticagrelor(4 months,n=12)increased by 1.9%.TMA and TMAO in patients decreased by 38 and 29%in faeces(^(*)P<0.05;^(*)P<0.05),and 37 and 35%in plasma(^(***)P<0.001;^(*)P<0.05),after 4 months on BBR.BBR might treat atherosclerotic plaque at least partially through decreasing TMAO in a mode of action similar to that of vitamins.Shu-Rong Ma Qian Tong Yuan Lin Li-Bin Pan Jie Fu Ran Peng Xian-Feng Zhang Zhen-Xiong Zhao Yang Li Jin-Bo Yu Lin Cong Pei Han Zheng-Wei Zhang Hang Yu Yan Wang Jian-Dong Jiang 2022Signal Transduction and Targeted Therapy2022,7,8:6
14Phase 1 studies comparing safety, tolerability, pharmacokinetics and pharmacodynamics of HLX01(a rituximab biosimilar) to reference rituximab in Chinese patients with CD20-positive B-cell lymphoma显示文摘Objective: This study aimed to compare the pharmacokinetic, pharmacodynamic and safety profiles of HLX01(a rituximab biosimilar) and reference rituximab sourced from China(Mab Thera?;rituximab-CN).Methods: Here we report the results of two phase 1 studies. In the phase 1 a, open-label, dose-escalation study(NCT03218072, CTR20140400), eligible patients received 250, 375 and 500 mg/m^(2) HLX01 sequentially at 7-day intervals, after confirming no dose-limiting toxicity(DLT). In the phase 1 b, double-blind study(NCT02584920,CTR20140764), eligible patients were given a single dose of 375 mg/m^(2) HLX01 or rituximab-CN. The primary endpoints included safety and tolerability parameters for the phase 1 a and the area under the plasma concentrationtime curve from time zero to day 91(AUC0-91 d) for the phase 1 b study. Equivalence was concluded if 90%confidence interval(90% CI) for the geometric least squares mean ratio(GLSMR) fell in the pre-specified equivalence criteria(80%-125%).Results: Between June 20, 2014 and January 5, 2015, 12 patients were enrolled in the phase 1 a study. The pharmacokinetics of HLX01 showed dose proportionality and accumulation to steady state. HLX01 was well tolerated, with no serious adverse events(AEs), discontinuations or DLTs. Between November 8, 2014 and August13, 2015, 87 eligible patients were enrolled in the phase 1 b study, including 43 who received HLX01 and 44 who were treated with rituximab-CN. The equivalence endpoint was met with GLSMR for AUC0-91 d being 89.6%(90% CI: 80.4%-99.8%). AEs, anti-drug antibodies, and CD19+ and CD20+ B lymphocyte counts were similar between the HLX01 and rituximab-CN treatment groups.Conclusions: Treatment with HLX01 was safe and well tolerated in Chinese patients with B-cell lymphoma.HLX01 and rituximab-CN have similar pharmacokinetic, pharmacodynamic and safety profiles.Yuankai Shi Qingyuan Zhang Xiaohong Han Yan Qin Xiaoyan Ke Hang Su Li Liu Jinxiang Fu Jie Jin Jifeng Feng Xiaonan Hong Xiaohong Zhang Depei Wu Bin Jiang Xiaodong Dong 2021Chinese Journal of Cancer Research2021,33,3:5
15Chemical formation and source apportionment of PM_(2.5) at an urban site at the southern foot of the Taihang mountains显示文摘The region along the Taihang Mountains in the North China Plain(NCP) is characterized by serious fine particle pollution. To clarify the formation mechanism and controlling factors, an observational study was conducted to investigate the physical and chemical properties of the fine particulate matter in Jiaozuo city, China. Mass concentrations of the water-soluble ions(WSIs) in PM_(2.5) and gaseous pollutant precursors were measured on an hourly basis from December 1, 2017, to February 27, 2018. The positive matrix factorization(PMF) method and the FLEXible PARTicle(FLEXPART) model were employed to identify the sources of PM_(2.5). The results showed that the average mass concentration of PM_(2.5) was 111 μg/m^(3) during the observation period. Among the major WSIs, sulfate, nitrate, and ammonium(SNA) constituted 62% of the total PM_(2.5) mass, and NO_(3)^(-) ranked the highest with an average contribution of 24.6%. NH_(4)^(+) was abundant in most cases in Jiaozuo. According to chemical balance analysis, SO_(2)-4, NO_(3)^(-), and Cl^(-) might be present in the form of(NH_4)_(2)SO_4, NH_4NO_3, NH_4Cl, and KCl. The liquid-phase oxidation of SO_(2) and NO_(2) was severe during the haze period. The relative humidity and pH were the key factors influencing SO_(4)^(2-) formation. We found that NO_(3)^(-) mainly stemmed from homogeneous gas-phase reactions in the daytime and originated from the hydrolysis of N_(2)O_5 in the nighttime, which was inconsistent with previous studies. The PMF model identified five sources of PM_(2.5) : secondary origin(37.8%), vehicular emissions(34.7%), biomass burning(11.5%), coal combustion(9.4%), and crustal dust(6.6%).Xiaoyong Liu Mingshi Wang Xiaole Pan Xiyue Wang Xiaolong Yue Donghui Zhang Zhigang Ma Yu Tian Hang Liu Shandong Lei Yuting Zhang Qi Liao Baozhu Ge Dawei Wang Jie Li Yele Sun Pingqing Fu Zifa Wang Hong He 2021Journal of Environmental Sciences2021,33,5:5
16Pharmacological Activation of RXR-a Promotes Hematoma Absorption via a PPAR-y-dependent Pathway After Intracerebral Hemorrhage显示文摘Endogenously eliminating the hematoma is a favorable strategy in addressing intracerebral hemorrhage(ICH).This study sought to determine the role of retinoid X receptor-ot(RXR-a)in the context of hematoma absorption after ICH.Our results showed that pharmacologically activating RXR-a with bexarotene significantly accelerated hematoma clearance and alleviated neurological dysfunction after ICH.RXR-ot was expressed in microglia/macro-phages,neurons,and astrocytes.Mechanistically,bexarotene promoted the nuclear translocation of RXR-a and PPAR-y,as well as reducing neuroinflammation by modulating microglia/macrophage reprograming from the Ml into the M2 phenotype.Furthermore,all the beneficial effects of RXR-a in ICH were reversed by the PPAR-y inhibitor GW9662.In conclusion,the pharmacological activation of RXR-a confers robust neuroprotection against ICH by accelerating hematoma clearance and repolarizing microglia/macrophages towards the M2 phenotype through PPAR-y-related mechanisms.Our data support the notion that RXR-ot might be a promising therapeutic target for ICH.Chaoran Xu Huaijun Chen Shengjun Zhou Chenjun Sun Xiaolong Xia Yucong Peng Jianfeng Zhuang Xiongjie Fu Hanhai Zeng Hang Zhou Yang Cao Qian Yu Yin Li Libin Hu Guoyang Zhou Feng Yan Gao Chen Jianru Li 2021Neuroscience Bulletin2021,37,10:4
17Activation of Parvalbumin-Positive Neurons in Both Retina and Primary Visual Cortex Improves the Feature-Selectivity of Primary Visual Cortex Neurons显示文摘Several recent studies using either viral or transgenic mouse models have shown different results on whether the activation of parvalbumin-positive(PV^+)neurons expressing channelrhodopsin-2(ChR2) in the primary visual cortex(V1) improves the orientation-and direction-selectivity of V1 neurons. Although this discrepancy was thoroughly discussed in a follow-up communication, the issue of using different models to express ChR2 in V1 was not mentioned. We found that ChR2 was expressed in retinal ganglion cells(RGCs) and V1 neurons in ChR2fl/^+; PV-Cre mice. Our results showed that the activation of PV^+RGCs using white drifting gratings alone significantly decreased the firing rates of V1 neurons and improved their direction-and orientation-selectivity. Longduration activation of PV^+interneurons in V1 further enhanced the feature-selectivity of V1 neurons in anesthetized mice, confirming the conclusions from previous findings. These results suggest that the activation of both PV^+RGCs and V1 neurons improves feature-selectivity in mice.Jinggang Duan Hang Fu Jiayi Zhang 2017Neuroscience Bulletin2017,33,3:4
18Nitrous Oxide Emissions from a Masson Pine Forest Soil in Subtropical Central China显示文摘The forest ecosystem plays a pivotal role in contributing greenhouse gases to the atmosphere.In order to characterize the temporal pattern of nitrous oxide(N_2O) emissions and identify the key factors affecting N_2O emissions from a Masson pine forest in a hilly red-soil region in subtropical central China,we measured the N_2O emissions in Jinjing of Hunan Province using the static chambergas chromatographic method for 3 years(2010-2012) and analyzed the relationships between the N_2O fluxes and the environmental variables.Our results revealed that the N_2O fluxes over the 3 years varied from-36.0 to 296.7 μg N m^(-2) h^(-1),averaging 18.4±5.6 μg N m^(-2) h^(-1)(n=3).The average annual N_2O emissions were estimated to be 1.6±0.3 kg N ha^(-1) year^(-1).The N_2O fluxes exhibited clear intra-annual(seasonal) variations as they were higher in summers and lower in winters.Compared with other forest observations in the subtropics,N_2O emissions at our site were relatively high,possibly due to the high local dry/wet N deposition,and were mostly sensitive to variations in precipitation and soil ammonium N content.In this work,a multiple linear regression model was developed to determine the influence of environmental factors on N_2O emissions,in which a category predictor of 'Season' was intentionally used to account for the seasonal variation of the N_2O fluxes.Such a model explained almost 40%of the total variation in daily N_2O emissions from the Masson pine forest soil studied(P<0.001).CHEN Dan FU Xiao-Qing WANG Cong LIU Xin-Liang LI Hang SHEN Jian-Lin WANG Yi LI Yong WU Jin-Shui 2015Pedosphere2015,25,2:3
19控制气管插管套囊压力与术后并发症关系的多中心研究显示文摘背景与气管插管相关的术后呼吸系统并发症通常表现为咳嗽、咽喉痛、声嘶、痰中带血。该研究中,我们研究了短时间(数小时)测量和控制气管插管套囊(endotracheal tube cuff,ETrc)压力对术后并发症的影响。方法选择中国上海4所大学附属三级医院拟在全身麻醉下行择期手术的患者509例,分为不测量ETTc压力的对照组和测量并调整ETTc压力的研究组,记录手术时间和插管时间。每组选择插管时间在120—180分钟的20例患者,拔管后即刻行纤维支气管镜检查。拔管后24小时记录咳嗽、咽喉痛、声嘶、痰中带血等气管插管相关并发症。结果两组间性别、年龄、身高、体重、手术时间和插管时问均无显著性差异。研究组调整前通过触摸指示气囊估计的平均ETTc压力为43±23.3mmHg(最高210mmHg),调整后为20±3.1mmHg(P〈0.001)。对照组术后咽喉痛、声嘶、痰中带血的发生率明显高于研究组。随着插管时间的增加,对照组中咽喉痛和痰中带血的发生率增加。研究组中咽喉痛的发生率也随插管时间增加而增加。对40例患者的纤维支气管镜检查结果显示支气管黏膜均有不同程度的损伤,对照组的损伤比研究组更严重。结论依据个人经验通过触捏估计ETTc压力明显高于测量结果或最适压力。即使在短时间(1—3小时)手术中,通过压力计合理控制ETTc压也有助于减少E]丌相关的咳嗽、咽喉痛、声嘶、痰中带血等术后呼吸系统并发症。Jianhui Liu Xiaoqing Zhang Wei Gong Shitong Li Fen Wang Shukun Fu Mazhong Zhang Yannan Hang 安博(译) 杜金(校) 2013麻醉与镇痛2013,,1:3
20Primary hepatic squamous cell carcinoma with abdominal incision metastasis after hepatectomy显示文摘To the Editor:Primary hepatic squamous cell carcinoma(PHSCC)is a rare and easily misdiagnosed disease.We reported a PHSCC case with abdominal incision metastasis after hepatectomy,and reviewed the clinical course,imaging,pathology and immunohistochemical findings.Our case may provide a better understanding of PHSCC.Jia-Xi Mao Fei Teng Hang Yuan Cong Liu Hong Fu Ke-Yan Sun Guo-Shan Ding Wen-Yuan Guo 2019Hepatobiliary & Pancreatic Diseases International2019,18,2:3
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