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3360篇 您的检索式:作者名="Chu Wang"
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1Sodium oligomannate therapeutically remodels gut microbiota and suppresses gut bacterial amino acids-shaped neuroinflammation to inhibit Alzheimer's disease progression显示文摘Recently,increasing evidence has suggested the association between gut dysbiosis and Alzheimer's disease(AD)progression,yet the role of gut microbiota in AD pathogenesis remains obscure.Herein,we provide a potential mechanistic link between gut microbiota dysbiosis and neuroinflammation in AD progression.Using AD mouse models,we discovered that,during AD progression,the alteration of gut microbiota composition leads to the peripheral accumulation of phenylalanine and isoleucine,which stimulates the differentiation and proliferation of pro-inflammatory T helper 1(Thl)cells.The brain-infiltrated peripheral Th1 immune cells are associated with the Ml microglia aaivation,contributing to AD-associated neuroinflammation.Importantly,the elevation of phenylalanine and isoleucine concentrations and the increase of Th1 cell frequency in the blood were also observed in two small independent cohorts of patients with mild cognitive impairment(MCI)due to AD.Furthermore,GV-971,a sodium oligomannate that has demonstrated solid and consistent cognition improvement in a phase 3 clinical trial in China,suppresses gut dysbiosis and the associated phenylalanine/isoleucine accumulation,harnesses neuroinflammation and reverses the cognition impairment.Together,our findings highlight the role of gut dysbiosis-promoted neuroinflammation in AD progression and suggest a novel strategy for AD therapy by remodelling the gut microbiota.Xinyi Wang Guangqiang Sun Teng Feng Jing Zhang Xun Huang Tao Wang Zuoquan Xie Xingkun Chu Jun Yang Huan Wang Shuaishuai Chang Yanxue Gong Lingfei Ruan Guanqun Zhang Siyuan Yan Wen Lian Chen Du Dabing Yang Qingli Zhang Feifei Lin Jia Liu Haiyan Zhang Changrong Ge Shifu Xiao Jian Ding Meiyu Geng 2019Cell Research2019,29,10:192
2OsWRKY03, a rice transcriptional activator that functions in defense signaling pathway upstream of OsNPR1显示文摘WRKY family proteins are a class of plant specific transcription factors that involve in many stress response pathways. It has been shown that one Arabidopsis WRKY protein, AtWRKY29/22, is activated by MAP kinase signaling cascade and confers resistance to both bacterial and fungal pathogens. However, little is known about the biological roles of WRKY proteins in rice. In this study, we investigated the expression patterns of rice AtWRKY29/22 homolog, OsWRKY03, under different conditions, and also its possible role involved in plant defense. Our results showed that OsWRKY03 was up-regulated by several defense signaling molecules or different treatments. Further analysis revealed that the expres- sion of OsWRKY03 was light dependent. Transcriptional activation activity of OsWRKY03 was also demonstrated by yeast functional assay. Transient expression of OsWRKY03-GFP fusion protein in onion epidermis cells showed that OsWRKY03 was a nuclear localized protein. OsNPR1 as well as several other pathogenesis-related genes, such as OsPR1b, phenylalanine ammonia-lyase (ZB8) and peroxidase (POX22.3), were induced in OsWRKY03-overexpressing transgenic plants. These results indicated that OsWRKY03 is located upstream of OsNPR1 as a transcriptional activator in salicylic acid (SA)-dependent or jasmonic acid (JA)-dependent defense signaling cascades.Xiao Qiang LIU Xian Quan BAI Qian QIAN Xiu Jie WANG Ming Sheng CHEN Cheng Cai CHU 2005Cell Research2005,15,8:55
3Contrasting trends of PM2.5 and surface-ozone concentrations in China from 2013 to 2017显示文摘Although much attention has been paid to investigating and controlling air pollution in China,the trends of air-pollutant concentrations on a national scale have remained unclear.Here,we quantitatively investigated the variation of air pollutants in China using long-term comprehensive data sets from 2013 to 2017,during which Chinese government made major efforts to reduce anthropogenic emission in polluted regions.Our results show a significant decreasing trend in the PM2.5 concentration in heavily polluted regions of eastern China,with an annual decrease of〜7%compared with measurements in 2013.The measured decreased concentrations of SO2>NO2 and CO(a proxy for anthropogenic volatile organic compounds)could explain a large fraction of the decreased PM2.5 concentrations in different regions.As a consequence;the heavily polluted days decreased significantly in corresponding regions.Concentrations of organic aerosol;nitrate;sulfate,ammonium and chloride measured in urban Beijing revealed a remarkable reduction from 2013 to 2017;connecting the decreases in aerosol precursors with corresponding chemical components closely.However;surface-ozone concentrations showed increasing trends in most urban stations from 2013 to 2017;which indicates stronger photochemical pollution.The boundary-layer height in capital c让ies of eastern China showed no significant trends over the Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta regions from 2013 to 2017;which confirmed the reduction in anthropogenic emissions.Our results demonstrated that the Chinese government was successful in the reduction of particulate matter in urban areas from 2013 to 2017,although the ozone concentration has increased significantly;suggesting a more complex mechanism of improving Chinese air quality in the future.Yonghong Wang Wenkang Gao Shuai Wang Tao Song Zhengyu Gong Dongsheng Ji Lili Wang Zirui Liu Guiqian Tang Yanfeng Huo Shili Tian Jiayun Li Mingge Li Yuan Yang Biwu Chu Tuukka Petaja Veli-Matti Kerminen Hong He Jiming Hao Markku Kulmala Yuesi Wang Yuanhang Zhang 2020National Science Review2020,7,8:51
4A Novel QTL qTGW3 Encodes the GSK3/ SHAGGY-Like Kinase OsGSK5/OsSK41 that Interacts with OsARF4 to Negatively Regulate Grain Size and Weight in Rice显示文摘谷物尺寸和形状在米饭是谷物重量和产量的重要决定因素。这里,我们报导一个新主要量的特点在米饭的地点(QTL ) , qTGW3,那种控制谷物尺寸和重量。这个地点, qTGW3,编码 OsSK41 (也作为 OsGSK5 知道) , GLYCOGEN SYNTHASE KINASE 3/SHAGGY-like 家庭的一个成员。带 OsSK41 的 loss-of-function 等位基因的瑞斯 near-isogenic 线增加了谷物长度和重量。我们证明那 OsSK41 交往与并且 phosphorylates 植物生长素反应因素 4 (OsARF4 ) 。有 OsARF4 的 OsSK41 的合作表示在米饭原物增加 OsARF4 的累积。OsARF4 的功能的损失导致更大的米饭谷物。定序 RNA 分析建议 OsARF4 和 OsSK41 镇压下游的基因的一个普通集合的表示, ? 包括一些植物生长素应答的基因,在米饭谷物开发期间。在 qTGW3 的 OsSK41 的 loss-of-function 形式代表没被指向的基因编辑或 QTL 节节上升广泛地在 OsSK41 功能的米饭 breeding.?Suppression 利用了的稀罕等位基因提高米饭谷物尺寸和重量。因此,我们的学习在米饭谷物开发揭示 OsSK41 的重要角色 ?? 并且在另外的谷物庄稼在米饭并且也许为谷物产量的基因改进提供新候选人基因。Zejun Hu Sun-Jie Lu Mei-Jing Wang Haohua He Le Sun Hongru Wang Xue-Huan Liu Ling Jiang Jing-Liang sun Xiaoyun Xin Wei Kong Chengcai Chu Hong-Wei Xue Jinshui Yang Xiaojin Luo Jian-Xiang Liu 2018Molecular Plant2018,11,5:47
5Clinical efficacy of three different minimally invasive procedures for far lateral lumbar disc herniation显示文摘LIU Tao ZHOU Yue WANG Jian CHU Tong-wei LI Chang-qing ZHANG Zheng-feng ZHANG Chao ZHENG Wen-jie 2012Chinese Medical Journal2012,,6:35
6Effects of resource additions on species richness and ANPP in an alpine meadow community显示文摘Aims Theories based on resource additions indicate that plant species richness is mainly determined by the number of limiting resources.However,the individual effects of various limiting resources on species richness and aboveground net primary productivity(ANPP)are less well understood.Here,we analyzed potential linkages between additions of limiting resources,species loss and ANPP increase and further explored the underlying mechanisms.Methods Resources(N,P,K and water)were added in a completely randomized block design to alpine meadow plots in the Qinghai-Tibetan Plateau.Plant aboveground biomass,species composition,mean plant height and light availability were measured in each plot.Regression and analysis of variance were used to analyze the responses of these measures to the different resource-addition treatments.Important Findings Species richness decreased with increasing number of added limiting resources,suggesting that plant diversity was apparently determined by the number of limiting resources.Nitrogen was the most important limiting resource affecting species richness,whereas Pand K alone had negligible effects.The largest reduction in species richness occurred when all three elements were added in combination.Water played a different role compared with the other limiting resources.Species richness increased when water was added to the treatments with N and P or with N,P and K.The decreases in species richness after resource additions were paralleled by increases in ANPP and decreases in light penetration into the plant canopy,suggesting that increased light competitionwas responsible for the negative effects of resource additions on plant species richness.Zhengwei Ren Qi Li Chengjin Chu Luqiang Zhao Jieqi Zhang Dexiecuo Ai Yingbo Yang Gang Wang 2010Journal of Plant Ecology2010,3,1:40
7Eosinophilic gastroenteritis: Clinical experience with 15 patients显示文摘AIM: To evaluate the clinic features of eosinophilicgastroenteritis and to examine the diagnosis, treatment,long-term outcome of this disease.METHODS: Charts with a diagnosis of eosinophilicgastroenteritis from 1984 to 2002 at Mackay Memorial Hospital were reviewed retrospectively. There were 15 patients diagnosed with eosinophilic gastroenteritis. The diagnosis was established in 13 by histologic evaluation of endoscopic biopsy or operative specimen and in 2 by radiologic imaging and the presence of eosinophilic ascites.RESULTS: All the patients had gastrointestinal symptoms and 12 (80 %) had hypereosinophilia (absolute eosinophil count 1 008 to 31 360/cm3). The most common symptoms were abdominal pain and diarrhea. Five of the 15 patients had a history of allergy. Seven patients had involvement of the mucosa, 2 of muscularis, and 6 of subserosa. One with a history of seafood allergy was successfully treated with an elimination diet. Another patient improved spontaneously after fasted for several days. The remaining 13 patients were treated with oral prednisolone, 10 to 40 mg/day initially,which was then tapered. The symptoms in all the patients subsided within two weeks. Eleven of the 15 patients were followed up for more than 12 months (12 to 104 months,mean 48.7), of whom 5 had relapses after discontinuing steroids (13 episodes). Two of these patients required longterm maintenance oral prednisolone (5 to 10 mg/day).CONCLUSION: Eosinophilic gastroenteritis is a rare condition of unclear etiology characterized by relapses and remissions. Short courses of corticosteroids are the mainstay of treatment, although some patients with relapsing disease require long-term low-dose steroids.Ming-Jen Chen Cheng-Hsin Chu Shee-Chan Lin Shou-Chuan Shih Tsang-En Wang 2003World Journal of Gastroenterology2003,9,12:37
8Kinsenoside attenuates osteoarthritis by repolarizing macrophages through inactivating NF-κB/MAPK signaling and protecting chondrocytes显示文摘The objective was to investigate the effect of kinsenoside(Kin) treatments on macrophage polarity and evaluate the resulting protection of chondrocytes to attenuate osteoarthritis(OA) progression.RAW264.7 macrophages were polarized to M1/M2 subtypes then administered with different concentrations of Kin. The polarization transitions were evaluated with quantitative real-time polymerase chain reaction(q RT-PCR), confocal observation and flow cytometry analysis. The mechanism of Kin repolarizing M1 macrophages was evaluated by Western blot. Further, macrophage conditioned medium(CM) and IL-1β were administered to chondrocytes. Micro-CT scanning and histological observations were conducted in vivo on anterior cruciate ligament transection(ACLT) mice with or without Kin treatment. We found that Kin repolarized M1 macrophages to the M2 phenotype. Mechanistically, Kin inhibited the phosphorylation of IκBα, which further reduced the downstream phosphorylation of P65 in nuclear factor-κB(NF-κB) signaling. Moreover, Kin inhibited mitogen-activated protein kinases(MAPK) signaling molecules p-JNK, p-ERK and p-P38. Additionally, Kin attenuated macrophage CM and IL-1β-induced chondrocyte damage. In vivo, Kin reduced the infiltration of M1 macrophages,promoted M2 macrophages in the synovium, inhibited subchondral bone destruction and reduced articular cartilage damage induced by ACLT. All the results indicated that Kin is an effective therapeutic candidate for OA treatment.Feng Zhou Jingtian Mei Xiuguo Han Hanjun Li Shengbing Yang Minqi Wang Linyang Chu Han Qiao Tingting Tang 2019Acta Pharmaceutica Sinica B2019,9,5:35
9Anti-Helicobacter pylori therapy followed by celecoxib on progression of gastric precancerous lesions显示文摘AIM:To evaluate whether celecoxib,a selective cyclooxygenase 2(COX-2) inhibitor,could reduce the severity of gastric precancerous lesions following Helicobacter pylori(H pylori) eradication.METHODS:H pylori-eradicated patients with gastric precancerous lesions randomly received either celecoxib(n=30) or placebo(n=30) for up to 3 mo.COX-2 expression and activity was determined by immunostaining and prostaglandin E2(PGE2) assay,cell proliferation by Ki-67 immunostaining,apoptosis by TUNEL staining and angiogenesis by microvascular density(MVD) assay using CD31 staining.RESULTS:COX-2 protein expression was significantly increased in gastric precancerous lesions(atrophy,intestinal metaplasia and dysplasia,respectively) compared with chronic gastritis,and was concomitant with an increase in cell proliferation and angiogenesis.A significant improvement in precancerous lesions was observed in patients who received celecoxib compared with those who received placebo(P<0.001).Of these three changes,84.6% of sites with dysplasia regressed in patients treated with celecoxib(P=0.002) compared with 60% in the placebo group,suggesting that celecoxib was effective on the regression of dysplasia.COX-2 protein expression(P<0.001) and COX-2 activity(P<0.001) in the gastric tissues were consistently lower in celecoxib-treated patients compared with the placebo-treated subjects.Moreover,it was also shown that celecoxib suppressed cell proliferation(P<0.01),induced cell apoptosis(P<0.01) and inhibited angiogenesis with decreased MVD(P<0.001).However,all of these effects were not seen in placebo-treated subjects.Furthermore,COX-2 inhibition resulted in the up-regulation of PPARγ expression,a protective molecule with anti-neoplastic effects.CONCLUSION:H pylori eradication therapy followed by celecoxib treatment improves gastric precancerous lesions by inhibiting COX-2 activity,inducing apoptosis,and suppressing cell proliferation and angiogenesis.Li-Jing Zhang Shi-Yan Wang Xiao-Hui Huo Zhen-Long Zhu Jian-Kun Chu Jin-Cheng Ma Dong-Sheng Cui Ping Gu Zeng-Ren Zhao Ming-Wei Wang Jun Yu 2009World Journal of Gastroenterology2009,15,22:32
10Periodicity of Holocene climatic variations in the Huguangyan Maar Lake显示文摘There exist five primary periods of 2 930, 1 140, 490, 250 and 220 a in the Holocene climatic variations in the Huguangyan Maar Lake, according to the energy-spectrum and filter analyses of high-resolution time sequences (10-15 a) of the sediment dry density. The peak values of the three temperature-decreasing periods with the 2 930 a cycle occur at about 7 300, 4 250 and 1 200 Cal. aBP. There are 7-8 temperature-decreasing periods with the 1 140 a cycle, and the climate fluctuation range is largest in the early Holocene, and reduces gradually in the middle and late Holocene. The millennial-scale climatic change in the Holocene may adjust the global water cycle and the thermohaline circulation intensity through the harmonic tones of the earth’s precession cycle, which in turn influences the global climate change.LIU Jiaqi LÜ Houyuan JNegendank JMingram LUO Xiangjun WANG Wenyuan CHU Guoqiang 2000Chinese Science Bulletin2000,45,18:33
11Ureteroscopic lithotripsy using holmium laser for 187 patients with proximal ureteral stones显示文摘LIU Ding-yi HE Hong-chao WANG Jian TANG Qi ZHOU Yan-feng WANG Ming-wei CHU Cheng-long ZHANG Chong-yu ZHU Yu ZHOU Wen-long SHEN Zhou-jun 2012Chinese Medical Journal2012,,9:34
12Guidelines on multidisciplinary approaches for the prevention and management of diabetic foot disease(2020 edition)显示文摘In recent years,as living standards have continued to improve,the number of diabetes patients in China,along with the incidence of complications associated with the disease,has been increasing.Among these complications,diabetic foot disease is one of the main causes of disability and death in diabetic patients.Due to the differences in economy,culture,religion and level of medical care available across different regions,preventive and treatment methods and curative results for diabetic foot vary greatly.In multidisciplinary models built around diabetic foot,the timely assessment and diagnosis of wounds and appropriate methods of prevention and treatment with internal and external surgery are key to clinical practice for this pathology.In 2019,under the leadership of the Jiangsu Medical Association and Chinese Diabetes Society,the writing group for the Guidelines on multidisciplinary approaches for the prevention and management of diabetic foot disease(2020 edition)was established with the participation of scholars from the specialist areas of endocrinology,burn injury,vascular surgery,orthopedics,foot and ankle surgery and cardiology.Drawing lessons from diabetic foot guidelines from other countries,this guide analyses clinical practices for diabetic foot,queries the theoretical basis and grades and gives recommendations based on the characteristics of the pathology in China.This paper begins with assessments and diagnoses of diabetic foot,then describes treatments for diabetic foot in detail,and ends with protections for high-risk feet and the prevention of ulcers.This manuscript covers the disciplines of internal medicine,surgical,nursing and rehabilitation and describes a total of 50 recommendations that we hope will provide procedures and protocols for clinicians dealing with diabetic foot.Aiping Wang Guozhong Lv Xingbo Cheng Xianghua Ma Wei Wang Jianchao Gui JiHu Meng Lu Guoping Chu Jin’an Chen Hao Zhang Yiqiu Jiang Yuedong Chen Wengbo Yang Lin Jiang Houfa Geng Rendong Zheng Yihui Li Wei Feng Boey Johnson Wenjuan Wang Dalong Zhu Yin Hu 2020Burns & Trauma2020,8,1:34
13Predictors of postoperative myasthenic crisis in patients with myasthenia gravis after thymectomy显示文摘背景 Thymectomy 与重症肌无力在病人被认为最有效的治疗。这研究试图在 thymectomy.Methods 以后与重症肌无力在病人探索手术后的 myasthenic 危机的预言者经历了 thymectomy 的有重症肌无力的 243 个病人的临床的记录回顾地被考察。下列因素在 thymectomy:gender 以后在与 myasthenic 危机的出现的关系被分析,年龄,症状的持续时间, Osserman 舞台, myasthenic 危机的历史,伴随物疾病,外科手术前的 pyridostigmine 剂量,外科手术前的类固醇治疗,操作途径,操作时间, thymoma 的存在,主要手术后的 complications.Results 在 thymectomy.Univariate 分析揭示了那 O 以后, 44 个病人在第一个月期间经历了手术后的 myasthenicCHU Xiang-yang XUE Zhi-qiang WANG Ru-wen TAN Qun-you 2011Chinese Medical Journal2011,,8:29
14Ginsenoside Rgl protects against ischemic/reperfusioninduced neuronal injury through miR-144/Nrf2/ARE pathway显示文摘Ginsenoside Rg1 (Rg1),a saponin extracted from Panax ginseng,has been well documented to be effective against ischemic/ reperfusion (I/R)neuronal injury.However,the underlying mechanisms remain obscure.In the present study,we investigated the roles of Nrf2 and miR-144 in the protective effects of Rgl against I/R-induced neuronal injury.In OGD/R-treated PC12 cells,Rgl (0.01-1 μmol/L)dose-dependently attenuated the cell injury accompanied by prolonging nuclear accumulation of Nrf2,enhancing the transcriptional activity of Nrf2,as well as promoting the expression of ARE-target genes.The activation of the Nrf2/ARE pathway by Rgl was independent of disassociation with Keapl,but resulted from post-translational regulations.Knockdown of Nrf2 abolished all the protective changes of Rgl in OG-D/R-treated PC12 cells.Furthermore,Rgl treatment significantly decreased the expression of miR-144,which downregulated Nrf2 production by targeting its 3'-untranlated region after OGD/R.Knockdown of Nrf2 had no effect on the expression of miR-144,suggesting that miR-144 was an upstream regulator of Nrf2.We revealed that there was a direct binding between Nrf2 and miR-144 in PC12 cells.Application of anti-miR-144 occluded the activation of the Nrf2/ ARE pathway by Rgl in OGD/R-treated PC12 cells.In tMCAO rats,administration of Rgl (20 mg/kg).significantly alleviated ischemic injury,and activated Nff2/ARE pathway.The protective effects of Rgl were abolished by injecting of AAV-HIF-miR-144-shRNA into the predicted ischemic penumbra.In conclusion,our results demonstrate that Rgl alleviates oxidative,stress after I/R through inhibiting miR-144 activity and subsequently promoting the Nrf2/ARE pathway at the post-translational-level.Shi-feng Chu Zhao Zhang Xin Zhou Wen-bin He Chen Chen Piao Luo Dan-dan Liu Qi-di Ai Hai-fan Gong Zhen-zhen Wang Hong-shuo Sun Zhong-ping Feng Nai-hong Chen 2019Acta Pharmacologica Sinica2019,40,1:30
15Genome-wide Targeted Mutagenesis in Rice Using the CRISPR/Cas9 System显示文摘Lu, Yuming Ye, Xiao Guo, Renming Huang, Jing Wang, Wei Tang, Jiuyou Tan, Longtao Zhu, Jian-kang Chu, Chengcai Qian, Yangwen 2017Molecular Plant2017,10,9:28
16Three-dimensional chiral microstructures fabricated by structured optical vortices in isotropic material显示文摘Optical vortices,a type of structured beam with helical phase wavefronts and‘doughnut’-shaped intensity distributions,have been used to fabricate chiral structures in metals and spiral patterns in anisotropic polarization-dependent azobenzene polymers.However,in isotropic polymers,the fabricated microstructures are typically confined to non-chiral cylindrical geometry due to the two-dimensional‘doughnut’-shaped intensity profile of the optical vortices.Here we develop a powerful strategy to realize chiral microstructures in isotropic material by coaxial interference of a vortex beam and a plane wave,which produces threedimensional(3D)spiral optical fields.These coaxial interference beams are generated by designing contrivable holograms consisting of an azimuthal phase and an equiphase loaded on a liquid-crystal spatial light modulator.In isotropic polymers,3D chiral microstructures are achieved under illumination using coaxial interference femtosecond laser beams with their chirality controlled by the topological charge.Our further investigation reveals that the spiral lobes and chirality are caused by interfering patterns and helical phase wavefronts,respectively.This technique is simple,stable and easy to perform,and it offers broad applications in optical tweezers,optical communications and fast metamaterial fabrication.Jincheng Ni Chaowei Wang Chenchu Zhang Yanlei Hu Liang Yang Zhaoxin Lao Bing Xu Jiawen Li Dong Wu Jiaru Chu 2017Light(Science & Applications)2017,6,1:28
17Degradation of chlorpyrifos in laboratory soil and its impact on soil microbial functional diversity显示文摘Degradation of chlorpyrifos at different concentrations in soil and its impact on soil microbial functional diversity were investigated under laboratory condition.The degradation half-live of chlorpyrifos at levels of 4,8,and 12 mg/kg in soil were calculated to be 14.3,16.7,and 18.0 d,respectively.The Biolog study showed that the average well color development(AWCD) in soils was significantly(P < 0.05) inhibited by chlorpyrifos within the first two weeks and thereafter recovered to a similar level as the control.A similar variation in the diversity indices(Simpson index 1/D and McIntosh index U) was observed,but no significant difference among the values of the Shannon-Wiener index H was found in chlorpyrifos-treated soils.With an increasing chlorpyrifos concentration,the half-life of chlorpyrifos was significantly(P 0.05) extended and its inhibitory effect on soil microorganisms was aggravated.It is concluded that chlorpyrifos residues in soil had a temporary or short-term inhibitory effect on soil microbial functional diversity.FANG Hua YU Yunlong CHU Xiaoqiang WANG Xiuguo YANG Xiaoe YU Jingquan 2009Journal of Environmental Sciences2009,21,3:25
18A new interpretation of the tectonic setting and age of meta-basic volcanics in the Ondor Sum Group, Inner Mongolia显示文摘The Ondor Sum Group in the central Inner Mongolia is mainly composed of meta-basic volcanics intercalated with ferruginous quartzite and quartz schist,and has been interpreted as slices of oceanic crust or an ophiolite suite of the Early Paleozoic or much older ages.This paper presents new LA-ICP-MS zircon U-Pb dating and geochemical data for the meta-basic volcanics.The results show that zircons in the meta-basic volcanics were derived from complicated sources,most of which may be captured by basic magma from the country rocks or other sources.They yield a large age range from the Late Archean to Early Mesozoic with the youngest age group between 246 and 261 Ma,constraining the protolith of the meta-basic volcanics formed in the Late Permian to Early Triassic.The meta-basic volcanics have an affinity to E-MORB in geochemistry,and also a similarity toward OIB,representing a tectonic setting of limited intra-continental ocean basin.This limited basin might have been related to the continuous extension of the area since the Early Permian and finally closed in the Early Mesozoic.CHU Hang ZHANG JinRui WEI ChunJing WANG HuiChu REN YunWei 2013Chinese Science Bulletin2013,58,28:25
19Up-Regulation of Trem2 Inhibits Hippocampal Neuronal Apoptosis and Alleviates Oxidative Stress in Epilepsy via the PI3K/Akt Pathway in Mice显示文摘Epilepsy is a chronic and severe neurological disorder that has negative effects on the autonomous activities of patients. Functionally, Trem2(triggering receptor expressed on myeloid cells-2) is an immunoglobulin receptor that affects neurological and psychiatric genetic diseases. Based on this rationale, we aimed to assess the potential role of Trem2 integration with the PI3 K/Akt pathway in epilepsy. We used microarray-based gene expression profiling to identify epilepsy-related differentially-expressed genes. In a mouse hippocampal neuron model of epilepsy, neurons were treated with lowMg^2+ extracellular fluid, and the protein and mRNA expression of Trem2 were determined. Using a gain-offunction approach with Trem2, neuronal apoptosis and its related factors were assessed by flow cytometry, RT-qPCR,and Western blot analysis. In a pilocarpine-induced epileptic mouse model, the malondialdehyde(MDA) and8-hydroxy-20-deoxyguanosine(8-OHdG) content and superoxide dismutase(SOD) and glutathione-peroxidase(GSH-Px) activity in the hippocampus were determined,and the protein expression of Trem2 was measured. In addition, the regulatory effect of Trem2 on the PI3 K/Akt pathway was analyzed by inhibiting this pathway in both the cell and mouse models of epilepsy. Trem2 was found to occupy a core position and was correlated with epilepsy.Trem2 was decreased in the hippocampus of epileptic miceand epileptic hippocampal neurons. Of crucial importance,overexpression of Trem2 activated the PI3 K/Akt pathway to inhibit neuronal apoptosis. Moreover, activation of the PI3 K/Akt pathway through over-expression of Trem2 alleviated oxidative stress, as shown by the increased expression of SOD and GSH-Px and the decreased expression of MDA and 8-OHdG. The current study defines the potential role of Trem2 in inhibiting the development of epilepsy, indicating that Trem2 up-regulation alleviates hippocampal neuronal injury and oxidative stress, and inhibits neuronal apoptosis in epilepsy by activating the PI3 K/Akt pathway.Ai-Hua Liu Min Chu Yu-Ping Wang 2019Neuroscience Bulletin2019,35,3:25
20Effect of Shexiang Tongxin Dropping Pills(麝香通心滴丸) on the Immediate Blood Flow of Patients with Coronary Slow Flow显示文摘Objective: To observe the immediate effect and safety of Shexiang Tongxin dropping pills(麝香通心滴丸, STDP) on patients with coronary slow flow(CSF), and furthermore, to explore new evidence for the use of Chinese medicine in treating ischemic chest pain. Methods: Coronary angiography(CAG) with corrected thrombolysis in myocardial infarction(TIMI) frame count(CTFC) was applied(collected at 30 frames/s). The treatment group included 22 CSF patients, while the control group included 22 individuals with normal coronary?ow. CSF patients were given 4 STDP through sublingual administration, and CAG was performed 5 min after the medication. The immediate blood ?ow frame count, blood pressure, and heart rate of patients before and after the use of STDP were compared. The liver and kidney functions of patients were examined before and after treatments. Results: There was a signi?cant difference in CTFC between groups(P<0.05). The average CTFC values of the vessels with slow blood ?ow in CSF patients were, respectively, 49.98±10.01 and 40.42±11.33 before and after the treatment with STDP, a 19.13% improvement. The CTFC values(frame/s) measured before and after treatment at the left anterior descending coronary artery, left circumflex artery, and right coronary artery were, respectively, 48.00±13.32 and 41.80±15.38, 59.00±4.69 and 50.00±9.04, and 51.90±8.40 and40.09±10.46, giving 12.92%, 15.25%, and 22.76% improvements, respectively. The CTFC values of vessels with slow ?ow before treatment were signi?cantly decreased after treatment(P<0.05). There were no apparent changes in the heart rate, blood pressure, or liver or kidney function of CSF patients after treatment with STDP(all P>0.05). Conclusions: The immediate effect of STDP in treating CSF patients was apparent. This medication could signi?cantly improve coronary ?ow without affecting blood pressure or heart rate. Our ?ndings support the potential of Chinese medicine to treat ischemic chest pain.WANG Sheng-huang CHU Lin XU Zhao ZHOU Hong-lin CHEN Jiang-fei NING Huang-fu 2019Chinese Journal of Integrative Medicine2019,0,5:25
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