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| 1 | Coding metamaterials, digital metamaterials and programmable metamaterials显示文摘Metamaterials are artificial structures that are usually described by effective medium parameters on the macroscopic scale,and these metamaterials are referred to as‘analog metamaterials’.Here,we propose‘digital metamaterials’through two steps.First,we present‘coding metamaterials’that are composed of only two types of unit cells,with 0 and p phase responses,which we name‘0’and‘1’elements,respectively.By coding‘0’and‘1’elements with controlled sequences(i.e.,1-bit coding),we can manipulate electromagnetic(EM)waves and realize different functionalities.The concept of coding metamaterials can be extended from 1-bit coding to 2-bit coding or higher.In 2-bit coding,four types of unit cells,with phase responses of 0,p/2,p,and 3p/2,are required to mimic the‘00’,‘01’,‘10’and‘11’elements,respectively.The 2-bit coding has greater freedom than 1-bit coding for controlling EM waves.Second,we propose a unique metamaterial particle that has either a‘0’or‘1’response controlled by a biased diode.Based on this particle,we present‘digital metamaterials’with unit cells that possess either a‘0’or‘1’state.Using a field-programmable gate array,we realize digital control over the digital metamaterial.By programming different coding sequences,a single digital metamaterial has the ability to manipulate EM waves in different manners,thereby realizing‘programmable metamaterials’.The above concepts and physical phenomena are confirmed through numerical simulations and experiments using metasurfaces. | Tie Jun Cui Mei Qing Qi Xiang Wan Jie Zhao Qiang Cheng | 2014 | Light(Science & Applications)2014,3,1: | 130 |
| 2 | H7N9 virulent mutants detected in chickens in China pose an increased threat to humans显示文摘 | Jianzhong Shi Guohua Deng Huihui Kong Chunyang Gu Shujie Ma Xin Yin Xianying Zeng Pengfei Cui Yan Chen Huanliang Yang Xiaopeng Wan Xiurong Wang Liling Liu Pucheng Chen Yongping Jiang Jinxiong Liu Yuntao Guan Yasuo Suzuki Mei Li Zhiyuan Qu Lizheng Guan Jinkai Zang Wenli Gu Shuyu Han Yangming Song Yuzhen Hu Zeng Wang Linlin Gu Wenyu Yang Libin Liang Hongmei Bao Guobin Tian Yanbing Li Chuanling Qiao Li Jiang Chengjun Li Zhigao Bu Hualan Chen | 2017 | Cell Research2017,27,12: | 70 |
| 3 | Histological Subtypes of Lung Cancer in Chinese Males from 2000 to 2012显示文摘Objective To characterize the histological and epidemiological features of male lung cancer patients in China. Methods The demographic and histological information about male lung cancer patients identified from 2000-01-01 to 2012-12-31,was collected from the Cancer Hospital of the Chinese Academy of Medical Sciences. Relative frequencies(RF) were estimated for major histological subtypes and compared according to the years of diagnosis and birth. Results The RF of adenocarcinoma(ADC) increased from 21.96% to 43.36% and the RF of squamous cell carcinoma(SCC) decreased from 39.11% to 32.23% from 2000 to 2012 in the 15 427 male lung cancer patients included in this study(Z=17.909,P<0.0001; Z=-6.117,P<0.0001). The RF of ADC increased from 28.72% in 2000-2004,36.88% in 2005-2008 to 48.61% in 2009-2012 in patients born after 1960. The age-adjusted RF of ADC in 2007-2012 increased consistently in all the investigated areas. Conclusion The increased RF of ADC in male lung cancer patients highlights the need for further investigation of the etiologic factors of these tumors. Smoke-free policies rather than modifying tobacco products should be enforced. | ZOU Xiao Nong LIN Dong Mei WAN Xia CHAO Ann FENG Qin Fu DAI Zhen YANG Gong Huan LV Ning | 2014 | Biomedical and Environmental Sciences2014,27,1: | 19 |
| 4 | Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘 | ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao | 2013 | Chinese Medical Journal2013,,12: | 16 |
| 5 | Characterization of Nestin-positive stem Leydig cells as a potential source for the treatment of testicular Leydig cell dysfunction显示文摘 | Mei Hua Jiang Bing Cai Ying Tuo Jiancheng Wang Zhi Jun Zang Xiang'an Tu Yong Gao Zhijian Su Weiqiang Li Guilan Li Min Zhang Jianwei Jiao Zi Wan Chunhua Deng Bruce T Lahn Andy Peng Xiang | 2014 | Cell Research2014,24,12: | 14 |
| 6 | Ciliary parathyroid hormone signaling activates transforming growth factor-βto maintain intervertebral disc homeostasis during aging显示文摘Degenerative disc disease(DDD) is associated with intervertebral disc degeneration of spinal instability. Here, we report that the cilia of nucleus pulposus(NP) cells mediate mechanotransduction to maintain anabolic activity in the discs. We found that mechanical stress promotes transport of parathyroid hormone 1 receptor(PTH1 R) to the cilia and enhances parathyroid hormone(PTH) signaling in NP cells. PTH induces transcription of integrin α_vβ_6 to activate the transforming growth factor(TGF)-β-connective tissue growth factor(CCN2)-matrix proteins signaling cascade. Intermittent injection of PTH(iPTH) effectively attenuates disc degeneration of aged mice by direct signaling through NP cells, specifically improving intervertebral disc height and volume by increasing levels of TGF-β activity, CCN2, and aggrecan. PTH1 R is expressed in both mouse and human NP cells. Importantly,knockout PTH1 R or cilia in the NP cells results in significant disc degeneration and blunts the effect of PTH on attenuation of aged discs. Thus, mechanical stress-induced transport of PTH1 R to the cilia enhances PTH signaling, which helps maintain intervertebral disc homeostasis, particularly during aging, indicating therapeutic potential of iPTH for DDD. | Liwei Zheng Yong Cao Shuangfei Ni Huabin Qi Zemin Ling Xin Xu Xuenong Zou Tianding Wu Ruoxian Deng Bo Hu Bo Gao Hao Chen Yusheng Li Jianxi Zhu Francis Tintani Shadpour Demehri Amit Jain Khaled M.Kebaish Shenghui Liao Cheryle A.Séguin Janet L.Crane Mei Wan Hongbin Lu Paul D.Sponseller Lee H.RileyIII Xuedong Zhou Jianzhong Hu Xu Cao | 2018 | Bone Research2018,6,3: | 13 |
| 7 | Unruptured pregnancy in a noncommunicating rudimentary horn at37 weeks with a live fetus:a case report显示文摘We report an extremely rare case of an unruptured non-communicating rudimentary horn full-term pregnancy.A woman who had a uterine malformation was misdiagnosed as uterus didelphys and gave birth to a live,healthy fetus.The correct diagnosis was not made until cesarean section at 37 4/7 weeks.The case suggests that women who are pregnant in a rudimentary horn could obtain a full-term delivery and give birth to a live and healthy baby. | Chen Cheng Weiwei Tang Lei Zhang Mei Luo Meihua Huang Xiuling Wu Guiping Wan | 2015 | The Journal of Biomedical Research2015,29,1: | 11 |
| 8 | Preparation of polyclonal antibody specific for NOR1 and detection of its expression pattern in human tissues and nasopharyngeal carcinoma显示文摘包含蛋白质 1 的 Oxidored-nitro 领域(NOR1 ) 基因是首先从鼻咽的癌(NPC ) 孤立的新奇 nitroreductase 基因。它为它的 nitrosation 功能在化学致癌物的形成和 NPC 的 carcinogenesis 起一个重要作用。在鼻咽的癌细胞的野类型的 NOR1 基因的 Overexpression 是有效的禁止细胞生长和增长。在这研究,第一次,我们产生了高度特定的 NOR1 抗体并且在人的纸巾和 NPC 活体检视分析了 NOR1 分发。结果证明那 NOR1 蛋白质主要在人的鼻咽和气管的纸巾被表示。人的心,肝,怒气,胃,冒号,肾,骨胳的肌肉,胸腺,和胰都 NOR1 蛋白质是缺乏的。更重要地,我们在 NPC 纸巾执行了 NOR1 蛋白质表示的 immunohistochemistry 试金,并且结果证明那 NOR1 蛋白质在 NPC 经常是下面表示的。这些数据使 NOR1 的潜在的生理的函数的选择清楚些并且提供不可缺少的引用给 NPC 的 carcinogenesis 进程并且到识别或验证织物特定的药目标。 | Bo Xiang Mei Yi Li Wang Wei Liu Wenling Zhang Jue Ouyang Ya Peng Wenjuan Li Ming Zhou Huaying Liu Minghua Wu Rong Wan Xiaoling Li Guiyuan Li | 2009 | Acta Biochimica et Biophysica Sinica2009,41,9: | 10 |
| 9 | Mechanosignaling activation of TGFβmaintains intervertebral disc homeostasis显示文摘Intervertebral disc(IVD) degeneration is the leading cause of disability with no disease-modifying treatment.IVD degeneration is associated with instable mechanical loading in the spine, but little is known about how mechanical stress regulates nucleus notochordal(NC) cells to maintain IVD homeostasis. Here we report that mechanical stress can result in excessive integrin α_vβ_6-mediated activation of transforming growth factor beta(TGFβ), decreased NC cell vacuoles, and increased matrix proteoglycan production, and results in degenerative disc disease(DDD). Knockout of TGFβ type II receptor(TβRII) or integrin α_v in the NC cells inhibited functional activity of postnatal NC cells and also resulted in DDD under mechanical loading.Administration of RGD peptide, TGFβ, and α_vβ_6-neutralizing antibodies attenuated IVD degeneration. Thus,integrin-mediated activation of TGFβ plays a critical role in mechanical signaling transduction to regulate IVD cell function and homeostasis. Manipulation of this signaling pathway may be a potential therapeutic target to modify DDD. | Qin Bian Lei Ma Amit Jain Janet L Crane Khaled Kebaish Mei Wan Zhengdong Zhang X Edward Guo Paul D Sponseller Cheryle A Seguin Lee H Riley Yongjun Wang Xu Cao | 2017 | Bone Research2017,5,1: | 9 |
| 10 | Synthesis of 2, 6-(substituded)pyridine Derivatives Using Amide and Imine Groups显示文摘A new wo-armed?acyclic diamide Ia 2, 6-bis(1-ethanecarbozamido-2-amino)pyridine, and a new series of aromatic aldehyde schiff bases containing pyridine ring and amide bridge, IIa-f, were prepared. The compounds were characterized by elemental analysis, IR, 1HNMR and MS. The bioactivity half inhibitory concentration C1/2 is given. | Mei Ying LI, Pei Zhi HU*, Wan Ren ZHU, Kuo Xi XU College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072 | 2003 | Chinese Chemical Letters2003,14,6: | 9 |
| 11 | Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes. | MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 无 | 2020 | Biomedical and Environmental Sciences2020,33,12: | 8 |
| 12 | Cellular senescence in musculoskeletal homeostasis,diseases,and regeneration显示文摘Emerging insights into cellular senescence highlight the relevance of senescence in musculoskeletal disorders,which represent the leading global cause of disability.Cellular senescence was initially described by Hayflick et al.in 1961 as an irreversible nondividing state in in vitro cell culture studies.We now know that cellular senescence can occur in vivo in response to various stressors as a heterogeneous and tissue-specific cell state with a secretome phenotype acquired after the initial growth arrest.In the past two decades,compelling evidence from preclinical models and human data show an accumulation of senescent cells in many components of the musculoskeletal system.Cellular senescence is therefore a defining feature of age-related musculoskeletal disorders,and targeted elimination of these cells has emerged recently as a promising therapeutic approach to ameliorate tissue damage and promote repair and regeneration of the skeleton and skeletal muscles.In this review,we summarize evidence of the role of senescent cells in the maintenance of bone homeostasis during childhood and their contribution to the pathogenesis of chronic musculoskeletal disorders,including osteoporosis,osteoarthritis,and sarcopenia.We highlight the diversity of the senescent cells in the microenvironment of bone,joint,and skeletal muscle tissue,as well as the mechanisms by which these senescent cells are involved in musculoskeletal diseases.In addition,we discuss how identifying and targeting senescent cells might positively affect pathologic progression and musculoskeletal system regeneration. | Mei Wan Elise F.Gray-Gaillard Jennifer H.Elisseeff | 2021 | Bone Research2021,9,4: | 7 |
| 13 | Neuroprotective effect of rapamycin on spinal cord injury via activation of the Wnt/β-catenin signaling pathway显示文摘The Wnt/β-catenin signaling pathway plays a crucial role in neural development, axonal guidance, neuropathic pain remission and neuronal survival. In this study, we initially examined the effect of rapamycin on the Wnt/β-catenin signaling pathway after spinal cord injury, by intraperitoneally injecting spinal cord injured rats with rapamycin over 2 days. Western blot analysis and immunofluorescence staining were used to detect the expression levels of β-catenin protein, caspase-3 protein and brain-derived neurotrophic factor protein, components of the Wnt/β-catenin signaling pathway. Rapamycin increased the levels of β-catenin and brain-derived neurotrophic factor in the injured spinal cord, improved the pathological morphology at the injury site, reduced the loss of motor neurons, and promoted motor functional recovery in rats after spinal cord injury. Our experimental findings suggest that the neuroprotective effect of rapamycin intervention is mediated through activation of the Wnt/β-catenin signaling pathway after spinal cord injury. | Kai Gao Yan-song Wang Ya-jiang Yuan Zhang-hui Wan Tian-chen Yao Hai-hong Li Pei-fu Tang Xi-fan Mei | 2015 | Neural Regeneration Research2015,10,6: | 7 |
| 14 | Generation of fertile offspring from Kitw/Kitwv mice through differentiation of gene corrected nuclear transfer embryonic stem cells显示文摘 | Yan Yuan Quan Zhou Haifeng Wan Bin Shen Xuepeng Wang Mei Wang Chunjing Feng Mingming Xie Tiantian Gu Tao Zhou Rui Fu Xingxu Huang Qi Zhou Jiahao Sha Xiao-Yang Zhao | 2015 | Cell Research2015,25,7: | 7 |
| 15 | Chondrogenesis mediates progression of ankylosing spondylitis through heterotopic ossification显示文摘Ankylosing spondylitis(AS)is chronic inflammatory arthritis with a progressive fusion of axial joints.Anti-inflammatory treatments such as anti-TNF-αantibody therapy suppress inflammation but do not effectively halt the progression of spine fusion in AS patients.Here we report that the autoimmune inflammation of AS generates a microenvironment that promotes chondrogenesis in spine ligaments as the process of spine fusion.Chondrocyte differentiation was observed in the ligaments of patients with earlystage AS,and cartilage formation was followed by calcification.Moreover,a large number of giant osteoclasts were found in the inflammatory environment of ligaments and on bony surfaces of calcified cartilage.Resorption activity by these giant osteoclasts generated marrow with high levels of active TGF-β,which induced new bone formation in the ligaments.Notably,no Osterix+osteoprogenitors were found in osteoclast resorption areas,indicating uncoupled bone resorption and formation.Even at the late and maturation stages,the uncoupled osteoclast resorption in bony interspinous ligament activates TGF-βto induce the progression of ossification in AS patients.Osteoclast resorption of calcified cartilage-initiated ossification in the progression of AS is a similar pathologic process of acquired heterotopic ossification(HO).Our finding of cartilage formation in the ligaments of AS patients revealed that the pathogenesis of spinal fusion is a process of HO and explained why anti-inflammatory treatments do not slow ankylosing once there is new bone formation in spinal soft tissues.Thus,inhibition of HO formation,such as osteoclast activity,cartilage formation,or TGF-βactivity could be a potential therapy for AS. | Tao Yu Jianguo Zhang Wei Zhu Xiao Wang Yun Bai Bin Feng Qianyu Zhuang Chang Han Shengru Wang Qimiao Hu Senbo An Mei Wan Shiwu Dong Jianzhong Xu Xisheng Weng Xu Cao | 2021 | Bone Research2021,9,2: | 7 |
| 16 | LRP6 in mesenchymal stem cells is required for bone formation during bone growth and bone remodeling显示文摘Lipoprotein receptor-related protein 6(LRP6) plays a critical role in skeletal development and homeostasis in adults. However, the role of LRP6 in mesenchymal stem cells(MSCs), skeletal stem cells that give rise to osteoblastic lineage, is unknown. In this study, we generated mice lacking LRP6 expression specifically in nestin1MSCs by crossing nestin-Cre mice with LRP6floxmice and investigated the functional changes of bone marrow MSCs and skeletal alterations. Mice with LRP6 deletion in nestin1cells demonstrated reductions in body weight and body length at 1 and 3 months of age. Bone architecture measured by microCT(mCT) showed a significant reduction in bone mass in both trabecular and cortical bone of homozygous and heterozygous LRP6mutant mice. A dramatic reduction in the numbers of osteoblasts but much less significant reduction in the numbers of osteoclasts was observed in the mutant mice. Osterix1osteoprogenitors and osteocalcin1osteoblasts significantly reduced at the secondary spongiosa area, but only moderately decreased at the primary spongiosa area in mutant mice. Bone marrow MSCs from the mutant mice showed decreased colony forming, cell viability and cell proliferation. Thus, LRP6 in bone marrow MSCs is essential for their survival and proliferation, and therefore, is a key positive regulator for bone formation during skeletal growth and remodeling. | Changjun Li Bart O Williams Xu Cao Mei Wan | 2014 | Bone Research2014,2,1: | 6 |
| 17 | Application of sewage sludge and intermittent aeration strategy to the bioremediation of DDT- and HCH-contaminated soil显示文摘Adding organic amendments to stimulate the biodegradation of pesticides is a subject of ongoing interest. The effect of sewage sludge on the bioremediation of dichlorodiphenyltrichloroethane(DDT) and hexachlorocyclohexane(HCH) contaminated soil was investigated in bench scale experiments,and intermittent aeration strategy was also used in this study to form an anaerobic–aerobic cycle. Bioremediation of DDT and HCH was enhanced with the addition of sewage sludge and the intermittent aeration. The removal rates of HCH and DDT were raised by 16.8%–80.8% in 10 days. Sewage sludge increased the organic carbon content from 6.2 to218 g/kg,and it could also introduce efficient degradation microbes to soil,including Pseudomonas sp.,Bacillus sp. and Sphingomonas sp. The unaerated phase enhanced the anaerobic dechlorination of DDT and HCH,and anaerobic removal rates of β-HCH,o,p′-DDT and p,p′-DDT accounted for more than 50% of the total removal rates,but the content of α-HCH declined more in the aerobic phase. | Qi Liang Mei Lei Tongbin Chen Jun Yang Xiaoming Wan Sucai Yang | 2014 | Journal of Environmental Sciences2014,26,8: | 5 |
| 18 | Analysis of structural components of decellularized scaffolds in renal fibrosis显示文摘Chronic kidney disease has been recognized as a major public health problem worldwide and renal fibrosis is a common pathological process occurring in chronic renal failure.It is very promising to find the strategies to slow or even prevent the progression of fibrosis.This study focused on whether renal fibrosis decellularized scaffolds has the potential to be a model of cellular mechanisms of tissue fibrosis or donors for tissue engineering.In order to evaluate the feasibility of decellularized scaffolds derived from pathological kidneys,histology,proteomics and ELISA will be used to analysis the changes in the structure and main components of fibrotic tissue.The fibrosis model in this paper was induced by adenine-fed and the results showed that the structure of fibrotic scaffold was changed and some protein were up-regulated or down-regulated,but the cytokines associated with renal regeneration after injury were remained.In cell experiments,endothelial progenitor cells proliferated well,which proved that the fibrotic scaffolds have non-cytotoxic.All these conclusions indicate that the renal fibrosis decellularized scaffolds model has the ability to study fibrosis mechanism and the potential to be engineering donors as well as normal scaffolds. | Rui Zhang Junqun Jiang Yaling Yu Fangfang Wang Niuniu Gao Yingjie Zhou Xinlong Wan Zhibin Wang Peng Wei Jin Mei | 2021 | Bioactive Materials2021,6,7: | 5 |
| 19 | Inhibition of cyclooxygenase-2 activity in subchondral bone modifies a subtype of osteoarthritis显示文摘Osteoarthritis(OA) causes the destruction of joints. Its pathogenesis is still under investigation, and there is no effective diseasemodifying therapy. Here, we report that elevated cyclooxygenase-2(COX-2) expression in the osteocytes of subchondral bone causes both spontaneous OA and rheumatoid arthritis(RA). The knockout of COX-2 in osteocytes or treatment with a COX-2 inhibitor effectively rescues the structure of subchondral bone and attenuates cartilage degeneration in spontaneous OA(STR/Ort)mice and tumor necrosis factor-α transgenic RA mice. Thus, elevated COX-2 expression in subchondral bone induces both OAassociated and RA-associated joint cartilage degeneration. The inhibition of COX-2 expression can potentially modify joint destruction in patients with arthritis. | Manli Tu Mi Yang Nanxi Yu Gehua Zhen Mei Wan Wenlong Liu Baochao Ji Hairong Ma Qiaoyue Guo Peijian Tong Li Cao Xianghang Luo Xu Cao | 2019 | Bone Research2019,7,3: | 5 |
| 20 | Effect of methotrexate combined with Sanhuang Yilong decoction on serum and synovial fluid aquaporin levels in rheumatoid arthritis dampness-heat blockage syndrome显示文摘OBJECTIVE:To study the effect of methotrexate(MTX) combined with Sanhuang Yilong decoction(SYD) on aquaporin(AQP) expression,and to explore the role of AQPs in the pathogenesis of rheumatoid arthritis(RA).METHODS:A total of 118 dampness-heat blockage type RA patients who were hospitalized in the General Chengdu Military Hospital between January2014 and December 2016 were selected as subjects in this study(30 patient of these patients with knee joint effusion were assigned to the RA synovial fluid group).For the pre-treatment controlgroups,30 healthy volunteers were recruited as the healthy control group and 30 osteoarthritis(OA) patients with knee joint effusion were included as OA synovial fluid control group.The RA dampnessheat blockage syndrome treatment groups were divided into 45 cases in the combined group and 45 cases in the MTX group.The combined group received MTX combined with SYD treatment while the MTX group received MTX alone.AQP1,AQP2 and AQP3 expressions were detected in the serum and synovial fluid.RESULTS:AQP1 had the highest expression,followed by AQP3,and AQP2.The serum levels of AQP1,AQP2 and AQP3 were all significantly lower than those in the healthy volunteers(P < 0.05),while the synovial fluid AQP1,AQP2 and AQP3 expression in the RA group were comparable to these in the OA groups(P > 0.05).After treatment for2 weeks,serum AQP1,AQP2,AQP3 were significantly increased and erythrocyte sedimentation rate,C-reactive protein,disease activity score of 28 joints were decreased in the combined group(P < 0.05).CONCLUSION:Abnormal expression of AQPs inhibits water metabolism in RA dampness-heat blockage syndrome,so liquid is accumulated at the joint,which may play an important role in the pathogenesis of RA.MTX combined with SYD for the treatment of RA can effectively increase AQP expression. | Liu Defang Yan Jiao Guo Mingyang Luo Yong Yang Mei Yang Min Zou Longfu Li Wan Zhong Xiaolong Liu Tao Hu Yonghe | 2018 | Journal of Traditional Chinese Medicine2018,38,4: | 4 |