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| 1 | Effects of tetrahedral framework nucleic acid/wogonin complexes on osteoarthritis显示文摘Osteoarthritis, a disorder characterized by articular cartilage deterioration, varying degrees of inflammation, and chondrocyte apoptosis, is the most common chronic joint disease. To slow or reverse its progression, inflammation should be inhibited, and chondrocyte proliferation should be promoted. Tetrahedral framework nucleic acids can be internalized by chondrocytes(even inflammatory chondrocytes) and can enhance their proliferation and migration. Wogonin, a naturally occurring flavonoid,suppresses oxidative stress and inhibits inflammation. In this study, tetrahedral framework nucleic acids were successfully selfassembled and used to load wogonin. We confirmed the effective formation of tetrahedral framework nucleic acid/wogonin complexes by dynamic light scattering, zeta potential analysis, transmission electron microscopy, and fluorescence spectrophotometry. Tetrahedral framework nucleic acids, wogonin, and especially tetrahedral framework nucleic acid/wogonin complexes effectively alleviated inflammation in vitro and in vivo and prevented cartilage destruction. In addition, these materials remarkably downregulated the expression of inflammatory mediators and matrix metalloproteinases, upregulated chondrogenic markers, and promoted tissue inhibitor of metalloproteinase 1 and B-cell lymphoma 2 expression. In vivo, after treatment with tetrahedral framework nucleic acid/wogonin complexes, the bone mineral density in regenerated tissues was much higher than that found in the untreated groups. Histologically, the complexes enhanced new tissue regeneration, significantly suppressed chondrocyte apoptosis, and promoted chondrogenic marker expression. They also inhibited cell apoptosis, increased chondrogenic marker expression, and suppressed the expression of inflammatory mediators in osteoarthritis. Therefore, we believe that tetrahedral framework nucleic acid/wogonin complexes can be used as an injectable form of therapy for osteoarthritis. | Sirong Shi Yang Chen Taoran Tian Songhang Li Shiyu Lin Yuxin Zhang Xiaoru Shao Tao Zhang Yunfeng Lin Xiaoxiao Cai | 2020 | Bone Research2020，8，1： | 9 |
| 2 | Circular RNA circStag1 promotes bone regeneration by interacting with HuR显示文摘Postmenopausal osteoporosis is a common bone metabolic disorder characterized by deterioration of the bone microarchitecture,leading to an increased risk of fractures.Recently,circular RNAs(circ RNAs)have been demonstrated to play pivotal roles in regulating bone metabolism.However,the underlying functions of circ RNAs in bone metabolism in postmenopausal osteoporosis remain obscure.Here,we report that circ Stag1 is a critical osteoporosis-related circ RNA that shows significantly downregulated expression in osteoporotic bone marrow mesenchymal stem cells(BMSCs)and clinical bone tissue samples from patients with osteoporosis.Overexpression of circ Stag1 significantly promoted the osteogenic capability of BMSCs.Mechanistically,we found that circ Stag1 interacts with human antigen R(Hu R),an RNA-binding protein,and promotes the translocation of Hu R into the cytoplasm.A high cytoplasmic level of Hu R led to the activation of the Wnt signaling pathway by stabilizing and enhancing low-density lipoprotein receptor-related protein 5/6(Lrp5/6)andβ-catenin expression,thereby stimulating the osteogenic differentiation of BMSCs.Furthermore,overexpression of circ Stag1 in vivo by circ Stag1-loaded adeno-associated virus(circ Stag1-AAV)promoted new bone formation,thereby preventing bone loss in ovariectomized rats.Collectively,we show that circ Stag1 plays a pivotal role in promoting the regeneration of bone tissue via Hu R/Wnt signaling,which may provide new strategies to prevent bone metabolic disorders such as postmenopausal osteoporosis. | Gaoyang Chen Canling Long Shang Wang Zhenmin Wang Xin Chen Wanze Tang Xiaoqin He Zhiteng Bao Baoyu Tan Jin Zhao Yongheng Xie Zhizhong Li Dazhi Yang Guozhi Xiao Songlin Peng | 2022 | Bone Research2022，10，3： | 7 |
| 3 | Melatonin promotes ripening of grape berry via increasing the levels of ABA, H2O2, and particularly ethylene显示文摘The role of melatonin in the regulation of fruit ripening and the mechanism involved remain largely unknown.In“Moldova”grape berries,melatonin accumulated rapidly from onset of veraison,reached the maximum at 94 days after bloom(DAB)and then exhibited low levels at late stages of berry ripening.By contrast,abscisic acid(ABA)and hydrogen peroxide(H2O2)exhibited different accumulation patterns,and ethylene was primarily produced immediately before veraison.Further experiments demonstrated that 10 and particularly 100µM melatonin treatments increased the levels of ABA,H2O2,and ethylene production and promoted berry ripening compared with the control treatment,whereas 0.1 and 1.0µM melatonin did not lead to clear effects.Additionally,the application of inhibitors indicated that ABA,H2O2,and ethylene participated in the regulation of berry ripening induced by melatonin,and the suppression of ethylene biosynthesis produced the greatest inhibitory effects on melatonin-induced berry ripening compared with those of ABA and H2O2.Melatonin also promoted ethylene production via ABA.In summary,10 and particularly 100µM melatonin treatments promoted berry ripening,which was accomplished,at least partially,via the other signaling molecules of ABA,H2O2,and particularly ethylene.This research provides insight into melatonin signaling during berry ripening and may advance the application of melatonin to accelerate berry ripening. | Lili Xu Qianyu Yue Guangqing Xiang Feng’e Bian Yuxin Yao | 2018 | Horticulture Research2018，5，1： | 7 |
| 4 | Melatonin enhances salt tolerance by promoting MYB108A-mediated ethylene biosynthesis in grapevines显示文摘The signal molecules melatonin and ethylene play key roles in abiotic stress tolerance.The interplay between melatonin and ethylene in regulating salt tolerance and the underlying molecular mechanism of this interplay remain unclear.Here,we found that both melatonin and 1-aminocyclopropane-1-carboxylic acid(ACC,a precursor of ethylene)enhanced the tolerance of grapevine to NaCl;additionally,ethylene participated in melatonin-induced salt tolerance.Further experiments indicated that exogenous treatment and endogenous induction of melatonin increased the ACC content and ethylene production in grapevine and tobacco plants,respectively.The expression of MYB108A and ACS1,which function as a transcription factor and a key gene involved in ethylene production,respectively,was strongly induced by melatonin treatment.Additionally,MYB108A directly bound to the promoter of ACS1 and activated its transcription.MYB108A expression promoted ACC synthesis and ethylene production by activating ACS1 expression in response to melatonin treatment.The suppression of MYB108A expression partially limited the effect of melatonin on the induction of ethylene production and reduced melatonin-induced salt tolerance.Collectively,melatonin promotes ethylene biosynthesis and salt tolerance through the regulation of ACS1 by MYB108A. | Lili Xu Guangqing Xiang Qinghua Sun Yong Ni Zhongxin Jin Shiwei Gao Yuxin Yao | 2019 | Horticulture Research2019，6，1： | 7 |
| 5 | Appreciating the role of big data in the modernization of environmental governance显示文摘1 Introduction The development of the Internet of Things,drones,and new social media platforms opened up an unprecedented space for the autonomy of human society.It promoted the formation of a new form of social relations and social field-cyber society(Jones,1995).The cyber society has already become a digital twin of the actual society and even the extensions.It reconstructed the whole society through impacting social control and social norms.In this context,it is of great theoretical and practical significance to expand the field of social governance from traditional society to cyber society. | Miaomiao LIU Bing ZHANG Jun BI | 2022 | Frontiers of Engineering Management2022，9，1： | 3 |
| 6 | The methyl jasmonate-responsive transcription factor SmMYB1 promotes phenolic acid biosynthesis in Salvia miltiorrhiza显示文摘Water-soluble phenolic acids are major bioactive compounds in the medicinal plant species Salvia miltiorrhiza.Phenolic acid biosynthesis is induced by methyl jasmonate(MeJA)in this important Chinese herb.Here,we investigated the mechanism underlying this induction by analyzing a transcriptome library of S.miltiorrhiza in response to MeJA.Global transcriptome analysis identified the MeJA-responsive R2R3-MYB transcription factor-encoding gene SmMYB1.Overexpressing SmMYB1 significantly promoted phenolic acid accumulation and upregulated the expression of genes encoding key enzymes in the phenolic acid biosynthesis pathway,including cytochrome P450-dependent monooxygenase(CYP98A14).Dual-luciferase(dual-LUC)assays and/or an electrophoretic mobility shift assays(EMSAs)indicated that SmMYB1 activated the expression of CYP98A14,as well as the expression of genes encoding anthocyanin biosynthesis pathway enzymes,including chalcone isomerase(CHI)and anthocyanidin synthase(ANS).In addition,SmMYB1 was shown to interact with SmMYC2 to additively promote CYP98A14 expression compared to the action of SmMYB1 alone.Taken together,these results demonstrate that SmMYB1 is an activator that improves the accumulation of phenolic acids and anthocyanins in S.miltiorrhiza.These findings lay the foundation for in-depth studies of the molecular mechanism underlying MeJA-mediated phenolic acid biosynthesis and for the metabolic engineering of bioactive ingredients in S.miltiorrhiza. | Wei Zhou Min Shi Changping Deng Sunjie Lu Fenfen Huang Yao Wang Guoyin Kai | 2021 | Horticulture Research2021，8，1： | 3 |
| 7 | The Ap-2α/Elk-1 axis regulates Sirpα-dependent tumor phagocytosis by tumor-associated macrophages in colorectal cancer显示文摘The inhibitory receptor signal regulatory protein-α(Sirpα)is a myeloid-specific immune checkpoint that engages the“don’t eat me”signal CD47,which is expressed on tumor and normal tissue cells.However,the profile and regulatory mechanism of Sirpαexpression in tumor-associated macrophages(TAMs)are still not clear.Here,we found that the expression of Sirpαin TAMs increased dynamically with colorectal cancer(CRC)progression.Mechanistically,CRC cell-derived lactate induced the nuclear translocation of the transcription factor Ap-2αfrom the cytoplasm in TAMs.Ap-2αfunctioned as a transcription factor for Elk-1 by binding to the conserved element GCCTGC located at−1396/−1391 in the mouse Elk-1 promoter.Subsequently,the Elk-1 protein bound to two conserved sites,CTTCCTACA(located at−229/−221)and CTTCCTCTC(located at−190/−182),in the mouse Sirpαpromoter and promoted Sirpαexpression in TAMs.Functionally,the macrophage-specific knockout of Ap-2αnotably promoted the phagocytic activity of TAMs and suppressed CRC progression,whereas these effects were prevented by the transgenic macrophage-specific expression of Elk-1,which regulated TAM phagocytosis and CRC development in a Sirpα-dependent manner.Furthermore,we showed that Elk-1 expression was positively correlated with Sirpαexpression in TAMs and was associated with poor survival in CRC patients.Taken together,our findings revealed a novel mechanism through which CRC evades innate immune surveillance and provided potential targets for macrophage-based immunotherapy for CRC patients. | Xiaojiao Wang Xi Luo Chuan Chen Ye Tang Lian Li Banghui Mo Houjie Liang Songtao Yu | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 2 |
| 8 | Epigenetic drug library screening identified an LSD1 inhibitor to target UTX-deficient cells for differentiation therapy显示文摘UTX(also known as KDM6A),a histone 3 lysine 27 demethylase,is among the most frequently mutated epigenetic regulators in myelodysplastic syndrome(MDS)and acute myeloid leukemia(AML).Recent studies have suggested that UTX mutations promote MDS and AML by blocking the differentiation of hematopoietic stem and progenitor cells(HSPCs).Here,we performed an epigenetic drug library screening for small molecules able to release the differentiation block on HSPCs induced by UTX deficiency.We found that SP2509,a selective inhibitor of LSD1,specifically promoted the differentiation of Utx-null HSPCs while sparing wild-type HSPCs.Transcriptome profiling showed that Utx loss reduced the expression of differentiation-related and tumor suppressor genes,correlating with their potential roles in HSPC self-renewal and leukemogenesis.In contrast,SP2509 treatment reversed these changes in gene expression in Utx-null HSPCs.Accordingly,Utx loss decreased H3K4 methylation level probably through the COMPASS-like complex,while LSD1 inhibition by SP2509 partially reversed the reduction of H3K4 methylation in Utx-deficient HSPCs.Further,SP2509 promoted the differentiation of Utx-null AML cells in vitro and in vivo and,therefore,extended the survival of these leukemic mice.Thus,our study identified a novel strategy to specifically target both premalignant and malignant cells with Utx deficiency for differentiation therapy and provided insights into the molecular mechanisms underlying the role of Utx in regulating HSPCs and related diseases. | Baohong Wu Xiangyu Pan Xuelan Chen Mei Chen Kaidou Shi Jing Xu Jianan Zheng Ting Niu Chong Chen Xiao Shuai Yu Liu | 2019 | Signal Transduction and Targeted Therapy2019，4，1： | 2 |
| 9 | Our Friend or Foe? Exploring CommonGrounds for China-Africa Relations显示文摘China’s presence in Africa has a long history of cordial interaction spanning from ancient to contemporary times.The history of China-Africa relations is held in high esteem by the two sides,as both share a history of foreign invasions and of solidarity for a common destiny.However,new narratives promoted by antagonists of China’s presence in Africa are constructed to portray China in a negative light without recourse to history.Arguably,the Chinese exploration of Africa can be said to have started many centuries before the arrival of Europeans on the continent. | Emmanuel Zwanbin | 2020 | China International Studies2020，65，1： | 1 |
| 10 | CO_(2) capture and conversion to value-added products promoted by MXene-based materials显示文摘Carbon dioxide(CO_(2) ) capture and conversion is the key route for the mitigation of the greenhouse effect and utilization of carbon sources to obtain value-added products or fuels.Much attention is paid to the development of novel materials with high CO_(2) adsorption capacity and conversion rate.MXene is the graphene-like two-dimensional metal carbide/nitride/carbonitride owning favorable structure,morphology,high surface-bulk ratio,and physicochemical properties.Here,we review the CO_(2) capture,sensing,and conversion by MXene and MXene-based materials.Furthermore,the underlying mechanism involved the capture,sensing,and conversion of CO_(2) is summarized.This review would open a new horizon for CO_(2) valorization with high efficiency and promising widespread applications. | Yu Chen Chong Liu Shien Guo Tiancheng Mu Lei Wei Yanhong Lu | 2022 | Green Energy & Environment2022，7，3： | 1 |
| 11 | Nitrate application affects root morphology by altering hormonal status and gene expression patterns in B9 apple rootstock nursery plants显示文摘Lateral roots(LRs)are critical for absorbing water,minerals,and nutrients.Nitrate is a vital signaling molecule for regulating LR growth.However,understanding how nitrate interacts with endogenous hormones and genes to coordinate LR development is a bottleneck.In this study,B9 apple rootstock nursery plants were cultured hydroponically and treated with different nitrate treatments(Control;T1,2.25 mM L^(−1);T2,9 mM L^(−1);T3,18 mM L^(−1);T4,36 mM L^(−1);and T5,72 mM L^(−1)),where T5 outperformed the other treatments.Nursery plants were subsequently treated with control and T5 to explore the underlying physiological and molecular mechanisms by which nitrate promoted LR growth.Plant height,stem diameter,root morphological parameters,endogenous hormones,and gene expression levels were measured.Results showed that T5 promoted LR growth by increasing the endogenous contents of indole-3-acetic acid(IAA)and gibberellic acid(GA),and by decreasing the contents of abscisic acid(ABA),jasmonic acid(JA),and zeatin riboside(ZR)at most time points.Furthermore,the relative expression levels of nitrate transporter genes were upregulated in the control group,and nitrate assimilation genes were upregulated in T5 nursery plants at various time points.In addition,the transcript abundances of auxin-related genes were higher in T5 nursery plants,which increased auxin contents.MdSHR,MdGATA1,and MdSCR1 expressions were induced,hence increasing LR growth.In contrast,higher auxin content raised MdWOX11 expression,which enhanced the MdLBD16 and MdLBD29 expression levels,thus prompting the transcripts of cell cycle-related genes:MdCYCD1;1 and MdCYCP4;1.Overall,the changes in hormonal content and gene expression levels followed superior LR growth by T5. | Muhammad Mobeen Tahir Xiaoyun Zhang Kamran Shah Faisal Hayat Shaohuan Li Jiangping Mao ke Li Yu Liu Yun Shao Dong Zhang | 2021 | Fruit Research2021，1，1： | 1 |
| 12 | Implementation experience of a 12-month intervention to introduce intermittent kangaroo mother care to eight Chinese neonatal intensive care units显示文摘Kangaroo mother care(KMC)is recommended by the World Health Organization for the care of preterm and low-birth-weight newborns.KMC has been shown to increase survival rates and the quality of life of preterm and low-birth-weight infants,including improved clinical outcomes,weight gain and thermoregulation when compared to conventional care[1,2,3].More recent research focused on KMC in high-risk preterm,critically ill newborns and newborns requiring special care,which suggested that KMC helped to stabilize the vital signs of preterm infants[4,5].KMC is well accepted and promoted by medical associations and professional organizations around the world[6,7].In November 2015 with support from the National Health Commission of China,participants from ten hospitals based in different areas of China received theoretical and practical training on KMC.During a four-year period,health professionals from these hospitals participated in theoretical and practical training,which included two operation training from foreign experts,two academic lectures,and three study tours to hospitals in the UK,Sweden and the Netherlands.During this period,the KMC Operational Manual for Premature Infants in China was developed,and a 12-month prospective multicenter study of KMC for preterm infants was conducted in the eight hospitals.In the present study,we further examine whether KMC was sustained as a practice during a 12-month period from April 2018 to March 2019 and the characteristics of preterm infants that received KMC. | Xin Liu Xiao-Hui Chen Zhan-Kui Li Bei Cao Shao-Jie Yue Qiong-Yu Liu Chuan-Zhong Yang Chang-Yi Yang Ying-Xi Zhao Geng-Li Zhao Qi Feng | 2022 | World Journal of Pediatrics2022，18，12： | 1 |
| 13 | TCM TREATMENT OF RETINAL VEIN OCCLUSION IN 216 CASES显示文摘Traditional Chinese Medicine wasadopted in the treatment of 216 cases(219eyes)of retinal vein occlusion.The period oftreatment averaged 3 months;the total rate ofefficacy was 80.4%.During an averagefollow-up of 3 years,84.1% of the patientsmaitained a stable or slightly improved vision.The authors believed that treatment of thedisease with TCM promoted the absorption ofblood and formation of collateral circulation,and suppressed neovascularization,thus pre-venting repeated bleeding that would lead toserious complications. | 刘孝书 李春元 | 1990 | Journal of Traditional Chinese Medicine1990，10，2： | 1 |
| 14 | Deciphering life sciences with“live”chemistry——The 2022 Nobel Prize in Chemistry显示文摘The 2022 Nobel Prize in Chemistry was awarded to Carolyn R.Bertozzi,Morten Meldal andK.Barry Sharpless for their development of click reaction and bioorthogonal chemistry.Our understanding of life sciences has been fundamentally accelerated by such novel chemistries,and to some extent,revolutionized by the emergence of new chemical tools benefited from these cutting-edge interdisciplinary explorations.In turn,the high demands of more powerful chemical tools for the sophisticated living systems have further promoted the development of new chemistry with newfunctionalities and applications. | Xinyuan Fan Peng R.Chen | 2023 | Science China Chemistry2023，66，1： | 1 |
| 15 | AN INTERSECTION OF ANCIENT WISDOM AND MODERN IDEALS显示文摘Thecontemporaryconcepts of civilization and culture(respectively wenming and wenhua in standard Chinese)promoted by Chinese President Xi Jinping draw on a combination of ancient and modern Chinese wisdom.Both concepts have been creatively synthesized with Chinese Marxism. | Josef Gregory Mahoney | 2024 | Beijing Review2024，67，16： | 0 |
| 16 | The chlorine evolution reaction promoted by organocatalysts with amide functional groups显示文摘Since the nineteenth century, the chlor-alkali process entails the electrochemical oxidation of sodium chloride solutions to Cl_(2) by the chlorine evolution reaction(CER) and the simultaneous production of sodium hydroxide and H_(2) at the cathode, of which sodium hydroxide and Cl_(2) are widely used as important chemicals [1]. | Lan Zhao Liang-Nian He | 2024 | Science China Chemistry2024，67，3： | 0 |
| 17 | STUDIES ON ALKALI METAL PROMOTED IRON CATALYST FOR AMMONIA SYNTHESIS Ⅷ——STRUCTURE OF THE CATALYST BY MSSBAUER SPECTROSCOPIC METHOD显示文摘Under moderate conditions, the catalytic activity of the alkali metal promoted iron catalyst for ammonia synthesis, the Fe-AC-K system that we have investigated is about double that of the industrial iron catalyst. This paper is a report on the study of the Fe-Ac-K system by the M(?)ssbauer spectroscopic method and of the findings obtained about its active site and structure. | 忻新泉 张雪琴 孟庆金 王兆先 戴安邦 夏元复 叶纯灏 | 1981 | Chinese Science Bulletin1981，26，2： | 0 |
| 18 | Effect of metformin on proliferation and related genes expression of human osteoblast MG63 under high glucose显示文摘Objective To study the effect of metformin on proliferation and related genes expression of human osteoblast.Methods The proliferation of MG63 cells under high glucose intervened with metformin was measured by CCK-8 assay. The activity of intracellular alkaline | 曹小俊 | 2013 | China Medical Abstracts(Internal Medicine)2013，30，1： | 0 |
| 19 | ACCELERATING BEIJING AS THE NATION'S TECHNOLOGICAL INNOVATION CENTRE显示文摘During the 13th Five-Year Plan(2016-2020)period,construction on Beijing as the nation's science and technology innovation centre quickened pace.During the period,Beijing promoted a total of 882 key projects,with all goals having been fully completed.The construction of Beijing into a science and technology innovation centre has achieved new results,according to press conferences on Reviewing the 13th Five-Year Plan and Looking Forward to the 14th Five-Year Plan(2021-2025)held by the Information Office of the People's Government of Bejing Municipality. | Rebecca Lou | 2021 | Beijing2021，，1： | 0 |
| 20 | PEOPLE & POINTS显示文摘NEW SPORT ADMINISTRATOR Gao Zhidan has been promoted to head the General Administration of Sport of China(GASC).Born in Siping, Jilin Province, in 1963, Gao graduated from the Beijing Sport University at the age of 25. He has spent his career at the GASC, including heading the department in charge of the country’s shooting and archery disciplines. | | 2022 | Beijing Review2022，65，32： | 0 |
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