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| 1 | Deformation mechanism and stability control of roadway along a fault subjected to mining显示文摘It is difficult to maintain the roadway around a fault because of the fractured surroundings,complex stress environment,and large and intense deformation in the mining process.Based on a tailgate of panel S2205 in Tunliu colliery,in Shanxi province,China,we investigated the evolution of stress and displacement of rocks surrounding the roadway during the drivage and mining period using theoretical analysis,numerical simulation and field trial methods.We analyzed the deformation and failure mechanisms of the tailgate near a fault.The deformation of surrounding rock caused by unloading in the drivage period is large and asymmetric,the roadway convergence increases with activation of the fault and secondary fracture develops in the mining period.Therefore,we proposed a specific control technique of the roadway along a fault as follows:(1) High-strength yielding bolt not only supports the shallow rock to loadbearing structures,but also releases primary deformation energy by use of a pressure release device in order to achieve high resistance to the pressure retained;(2) Grouting of near-fault ribside after initial stabilization of the rock deformation is used to reinforce the broken rock,and to improve the integral load-bearing capacity of the roadway.The research results were successfully applied to a field trial. | Yan Shuai Bai Jianbiao Li Wenfeng Chen Jigang Li Lei | 2012 | International Journal of Mining Science and Technology2012，22，4： | 11 |
| 2 | Allele-aware chromosome-level genome assembly of Artemisia annua reveals the correlation between ADS expansion and artemisinin yield显示文摘Artemisia annua is the major natural source of artemisinin,an anti-malarial medicine commonly used worldwide.Here,we present chromosome-level haploid maps for two A.annua strains with different artemisinin contents to explore the relationships between genomic organization and artemisinin production.High-fidelity sequencing,optical mapping,and chromatin conformation capture sequencing were used to assemble the heterogeneous and repetitive genome and resolve the haplotypes of A.annua.Approximately 5o,ooo genes were annotated for each haplotype genome,and a triplication event that occurred approximately 58.12million years ago was examined for the first time in this species.A total of 3,903,467-5,193,414 variants(SNPs,indels,and structural variants)were identified in the 1.5-Gb genome during pairwise comparison between haplotypes,consistent with the high heterozygosity of this species.Genomic analyses revealed a correlation between artemisinin concents and the copy number of amorpha-4,11-dienes ynthasegenes.This correlation was further confirmed by resequencing of 36A.annua samples with varied artemisinin contents.Circular consensus sequencing of transcripts facilitated the detection of paralog expression.Collectively,our study provides chromosome-level allele-aware genome assemblies for two A.annua strains and new insights into the biosynthesis of artemisinin and its regulation,which will contribute to conquering malaria worldwide. | Baosheng Liao Xiaofeng Shen Li Xiang Shuai Guo Shiyu Chen Ying Meng Yu Liang Dandan Ding Junqi Bai Dong Zhang Tomasz Czechowski Yi Li Hui Yao Tingyu Mai Caroline Howard Chao Sun Haitao Liu Jiushi Liu Jin Pei Jihai Gao Jigang Wang Xiaohui Qiu Zhihai Huang Hongyi Li Ling Yuan Jianhe Wei lan Graham Jiang Xu Boli Zhang Shilin Chen | 2022 | Molecular Plant2022，15，8： | 9 |
| 3 | Clinical and Genetic Investigation of a Multi-generational Chinese Family Afflicted with Von Hippel-Lindau Disease显示文摘 | Jingyao Zhang Jie Ma Xiaoyun Du Dapeng Wu Hong Ai Jigang Bai Shunbin Dong Qinling Yang Kai Qu Yi Lyu Robert K Valenzuela Chang Liu | 2015 | Chinese Medical Journal2015，，1： | 6 |
| 4 | Single-cell transcriptome analysis reveals the regulatory effects of artesunate on splenic immune cells in polymicrobial sepsis显示文摘Sepsis is characterized by a severe and life-threatening host immune response to polymicrobial infection accompanied by organ dysfunction.Studies on the therapeutic effect and mechanism of immunomodulatory drugs on the sepsis-induced hyperinflammatory or immunosuppression states of various immune cells remain limited.This study aimed to investigate the protective effects and underlying mechanism of artesunate(ART)on the splenic microenvironment of cecal ligation and puncture-induced sepsis model mice using single-cell RNA sequencing(scRNA-seq)and experimental validations.The scRNA-seq analysis revealed that ART inhibited the activation of pro-inflammatory macrophages recruited during sepsis.ART could restore neutrophils’chemotaxis and immune function in the septic spleen.It inhibited the activation of T regulatory cells but promoted the cytotoxic function of natural killer cells during sepsis.ART also promoted the differentiation and activity of splenic B cells in mice with sepsis.These results indicated that ART could alleviate the inflammatory and/or immunosuppressive states of various immune cells involved in sepsis to balance the immune homeostasis within the host.Overall,this study provided a comprehensive investigation of the regulatory effect of ART on the splenic microenvironment in sepsis,thus contributing to the application of ART as adjunctive therapy for the clinical treatment of sepsis. | Jiayun Chen Xueling He Yunmeng Bai Jing Liu Yin Kwan Wong Lulin Xie Qian Zhang Piao Luo Peng Gao Liwei Gu Qiuyan Guo Guangqing Cheng Chen Wang Jigang Wang | 2023 | Journal of Pharmaceutical Analysis2023，13，7： | 1 |
| 5 | Dissection of cellular and molecular mechanisms of aristolochic acid-induced hepatotoxicity via single-cell transcriptomics显示文摘Background:Aristolochic acids(AAs),a class of carcinogenic and mutagenic natural products from Aristolochia and Asarum plants,are well-known to be responsible for inducing nephrotoxicity and urothelial carcinoma.Recently,accumulating evidence suggests that exposure to AAs could also induce hepatotoxicity and even hepatocellular carcinoma,though the mechanisms are poorly defined.Methods:Here,we aimed to dissect the underlying cellular and molecular mechanisms of aristolochic acid I(AAI)-induced hepatotoxicity by using advanced single-cell RNA sequencing(scRNA-seq)and proteomics techniques.We established the first single-cell atlas of mouse livers in response to AAI.Results:In hepatocytes,our results indicated that AAI activated NF-κB and STAT3 signaling pathways,which may contribute to the inflammatory response and apoptosis.In liver sinusoidal endothelial cells(LSECs),AAI activated multiple oxidative stress and inflammatory associated signaling pathways and induced apoptosis.Importantly,AAI induced infiltration of cytotoxic T cells and activation of proinflammatory macrophage and neutrophil cells in the liver to produce inflammatory cytokines to aggravate inflammation.Conclusions:Collectively,our study provides novel knowledge of AAs-induced molecular characteristics of hepatotoxicity at a singlecell level and suggests future treatment options for AAs associated hepatotoxicity. | Piao Luo Jiayun Chen Qian Zhang Fei Xia Chen Wang Yunmeng Bai Huan Tang Dandan Liu Liwei Gu Qingfeng Du Wei Xiao Chuanbin Yang Jigang Wang | 2022 | Precision Clinical Medicine2022，5，4： | 0 |
| 6 | Epidemiological study of a von Hippel-Lindau family in northwest China显示文摘von Hippel-Lindau(VHL)disease is a rare,inherited neoplastic disease characterized by hemangioblastomas(HBL)of the central nervous system(CNS),retinal angiomas,renal cell carcinomas(RCC),pancreatic endocrine tumors(PETs),pheochromocytomas,paragangliomas,and visceral cysts.We encountered a large VHL family in northwest China and conducted a systematic screening of the family members based on their epidemiological and clinical characteristics.A self-designed questionnaire was used to collect the general sociodemographic and health information of the family members.For the preliminary family screening,physical examination and abdomen B ultrasonography were performed.The suspected patients were subjected to cranial computerized tomography and fundus examination.The clinical data of the patients with confirmed VHL disease were collected from hospital records.A total of 63 lineal descendants in six generations were observed in the family(generations O,A,B,C,D,E),including 9 dead suspected cases(6 males,3 females)and 10 living cases(2 males,8 females).Among the 10 living cases,4,2,1,3,4,8,and 2 manifested HBLs of the CNS,PETs,RCC,pancreatic cysts,renal cysts,pheochromocytomas(4 hemi and 4 bilateral),and paragangliomas,respectively.Data showed that the morbidity of VHL disease in generation C was lower than that in generation B,but the age of onset was younger.This study is the first to report VHL disease in northwest China and VHL-associated PET cases in Chinese.Therefore,follow-up checkups of the family should be focused on younger generations.Proper family screening protocols should be followed for the treatment of patients with VHL disease. | Jingyao Zhang Dapeng Wu Hong Ai Jigang Bai Shunbin Dong Qinling Yang Kai Qu Lei Zhou Xinsen Xu Chang Liu | 2013 | Frontiers of Medicine2013，7，3： | 0 |
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