|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Anisotropic coding metamaterials and their powerful manipulation of differently polarized terahertz waves显示文摘Metamaterials based on effective media can be used to produce a number of unusual physical properties(for example,negative refraction and invisibility cloaking)because they can be tailored with effective medium parameters that do not occur in nature.Recently,the use of coding metamaterials has been suggested for the control of electromagnetic waves through the design of coding sequences using digital elements‘0’and‘1,'which possess opposite phase responses.Here we propose the concept of an anisotropic coding metamaterial in which the coding behaviors in different directions are dependent on the polarization status of the electromagnetic waves.We experimentally demonstrate an ultrathin and flexible polarization-controlled anisotropic coding metasurface that functions in the terahertz regime using specially designed coding elements.By encoding the elements with elaborately designed coding sequences(both 1-bit and 2-bit sequences),the x-and y-polarized waves can be anomalously reflected or independently diffused in three dimensions.The simulated far-field scattering patterns and near-field distributions are presented to illustrate the dual-functional performance of the encoded metasurface,and the results are consistent with the measured results.We further demonstrate the ability of the anisotropic coding metasurfaces to generate a beam splitter and realize simultaneous anomalous reflections and polarization conversions,thus providing powerful control of differently polarized electromagnetic waves.The proposed method enables versatile beam behaviors under orthogonal polarizations using a single metasurface and has the potential for use in the development of interesting terahertz devices. | Shuo Liu Tie Jun Cui Quan Xu Di Bao Liangliang Du Xiang Wan Wen Xuan Tang Chunmei Ouyang Xiao Yang Zhou Hao Yuan Hui Feng Ma Wei Xiang Jiang Jiaguang Han Weili Zhang Qiang Cheng | 2016 | Light(Science & Applications)2016，5，1： | 36 |
| 2 | Multicenter follow-up study of ankle fracture surgery显示文摘在从流行病学、临床的大 multicenter 的中国的脚关节破裂上的很少数据学习的背景是这研究的 available.The 目的是由考察在这研究包括了的 China.Methods 在五所医院经历了脚关节骨折外科的 235 个病人评估流行病学的特征和脚关节破裂的外科的结果经历了脚关节的病人折断外科在到2009年7月 .Age 的从2000年1月的五所中国医院,性,损害的机制, Arbeitsgemeinschaft f | XU Hai-lin LIU Li-min LI Xuan ZHANG Dian-ying FU Zhong-guo WANG Tian-bing ZHANG Pei-xun JIANG Bao-guo SHEN Hui-liang WANG Gang WANG Guang-lin WU Xin-bao | 2012 | Chinese Medical Journal2012，，4： | 27 |
| 3 | Down-regulation of lung resistance related protein by RNA interference targeting survivin induces the reversal of chemoresistances in hepatocellular carcinoma显示文摘survivin 和肺抵抗联系了的背景蛋白质( LRP )与在 hepatocellular 的 chemoresistances 有关是在 survivin 和 LRP 之间的关系是的癌( HCC ) .But 这研究的 indefinite.The 目的是两个都在 HCC 在 LRP 表情和 chemoresistances 的颠倒上调查 survivin 的下面规定的效果在里面 vitro 并且在 vivo.Methods , survivin 的表情被 RT-PCR 并且在 HCC 房间线 SMMC-7721 和 SMMC-7721/ADM.The | SONG Xuan WANG Jia-bei YIN Da-long YANG Hai-yan LIU Lian-xin JIANG Hong-chi | 2009 | Chinese Medical Journal2009，，21： | 20 |
| 4 | Esophageal mesenchymal tumors:Endoscopy,pathology and immunohistochemistry显示文摘AIM: To study the endoscopic, pathological and immuno-histochemical features of esophageal mesenchymal tumors. METHODS: Twenty-nine patients diagnosed as esophageal mysenchymal tumors by electronic endoscopy and endoscopic ultrasound (EUS) were observed under light microscopes, and all tissues were stained by the immunohistochemical method. The expression of CD117, CD34, SMA and desmin were measured by staining intensity of cells and positive cell ratios. RESULTS: Endoscopically, esophageal gastrointestinal stromal tumors (GISTs) and leiomyomas (LMs) had similar appearances, showing submucosal protuberant lesions. They all showed low echo images originated from the muscularis propria or muscularis mucosa on EUS. Endoscopy and EUS could not exactly differentiate esophageal GISTs from LMs. Microscopically, there were two kinds of cells: spindle cell type and epitheloid cell type in esophageal GISTs. Leiomyomas and leiomyosarcomas were only of spindle cell type. One malignancy was found in five cases of esophageal GISTs, and one malignancy in 24 cases of leiomyomas and leiomyosarcomas. Using Fisher’s exact method, the differences of malignant lesion proportion were not significant between esophageal LMs and GISTs, 1/5 vs 1/24 (P > 0.05). All cases of esophageal GISTs were positive for CD117, and 3 cases were also positive for CD34. The 24 cases of leiomyomas and leiomyosarcomas were all negative for CD117 and CD34. The differences of positive rates of CD117 and CD34 were significant between esophageal GISTs and LMs, 5/5 vs 0/24, 3/5 vs 0/24 (P < 0.005). All leiomyomas and leiomyosarcomas were positive for SMA, and desmin. Among 5 cases of esophageal GISTs, 2 cases were SMA positive, and 1 case was desmin positive. The differences in positive rates and expression intensity of SMA and desmin were significant between esophageal LMs and GISTs, 24/24 vs 2/5, 24/24 vs 1/5 (P < 0.005). CONCLUSION: The most common esophageal mesenchymal tumors are leiomyomas, and esophageal GISTs are less common. Most of esophageal LMs and GISTs are benign. Endoscopy and EUS are the effective methods to diagnose esophageal mesenchymal tumors and they can provide useful information for the treatment of these tumors. However, they cannot exactly differentiate esophageal GISTs from LMs. Pathological, especially immunohistochemical features are useful to differentiate GISTs from leiomyomas. | Xuan Zhu xiao-Qian Zhang Bi-Min Li Ping Xu Kun-He Zhang Jiang Chen | 2007 | World Journal of Gastroenterology2007，13，5： | 16 |
| 5 | Zscan4 promotes genomic stability during reprogramming and dramatically improves the quality of iPS cells as demonstrated by tetraploid complementation显示文摘用 Yamanaka 因素产生的导致的 pluripotent 茎(iPS ) 细胞在自体同源的细胞治疗为使用有大潜力。然而, genomic 畸形充分在人的 iPS 房间,和房间不是的大多数老鼠 iPS 存在 pluripotent 由 tetraploid 互补试金评估了 TCA ) ;这很可能与 DNA 损坏反应(DDR ) 被联系在 Yamanaka 因素导致的早 reprogramming 发生了。相反,原子转移忠实地装改编体的房间进胚胎的茎(ES ) 满足 TCA 的房间。我们因此假设了涉及导致卵母细胞的 reprogramming 的因素可以在 reprogramming 期间稳定体的染色体,并且改进结果的 iPS 房间的质量。测试这个假设,我们在 iPS 期间为能减少的因素屏蔽了 DDR 信号房间正式就职。我们决定了那 Zscan4,在有 Yamanaka 因素的联合,不是仅仅显著地减少了 DDR 而且显著地支持了 iPS 房间产生的效率。Zscan4 的包括稳定了 genomic DNA,导致 p53 downregulation。而且, Zscan4 也提高了象通过 telomere 感染以后的 3 天一样早变长的 telomere 基于再结合的机制。作为结果,与 Zscan4 的增加产生的 iPS 房间比古典 iPS 房间展出了更长的 telomeres。惊人地,超过 50% iPS 房间线(11/19 ) 经由这生产了 “ Zscan4 protocol”产生了由 TCA 决定了的实时熊的 all-iPS 房间老鼠,与为用古典 Yamanaka 因素生产的线的 1/12 相比。我们的调查结果提供在 reprogramming 期间维持 genomic 稳定性支持的第一示范高质量的 iPS 房间的产生。 | Jing Jiang Wenjian Lv Xiaoying Ye Lingbo Wang Man Zhang Hui Yang Maja Okuka Chikai Zhou Xuan Zhang Lin Liu Jinsong Li | 2013 | Cell Research2013，23，1： | 14 |
| 6 | Blood-letting punctures at twelve Jing-Well points of the hand can treat cerebral ischemia in a similar manner to mannitol显示文摘A rat model of middle cerebral artery permanent occlusion was established using the modified Longa method.Successfully established model animals were treated by blood-letting puncture at twelve Jing-Well points of the hand,and/or by injecting mannitol into the caudal vein twice daily.Brain tissue was collected at 24,48 and 72 hours after modeling,and blood was collected through the retinal vein before Evans blue was injected,approximately 1 hour prior to harvesting of brain tissue.Results showed that Evans blue leakage into brain tissue and serum nitric oxide synthase activity were significantly increased in model rats.Treatment with blood-letting punctures at twelve Jing-Well points of the hand and/or injection of mannitol into the caudal vein reduced the amount of Evans blue leakage into the brain tissue and serum nitric oxide synthase activity to varying degrees.There was no significant difference between single treatment and combined treatment.Experimental findings indicate that blood-letting punctures at twelve Jing-Well points of the hand can decrease blood-brain barrier permeability and serum nitric oxide synthase activity in rats following middle cerebral artery occlusion,and its effect is similar to that of mannitol injection alone and Jing-Well points plus mannitol injection. | Xuan Lu Zelin Chen Yi Guo Liang Gao Liyuan Jiang Zhongzheng Li Jianqiao Fang | 2013 | Neural Regeneration Research2013，8，6： | 14 |
| 7 | Effects of Angelica dahurica on obesity and fatty liver in mice显示文摘Angelica dahurica(A. dahurica) is a traditional Chinese medicinal plant being used in clinical practice. The present study demonstrated that A. dahurica could reduce white-fat weight in high-fat-diet hyperlipidemic mice, decrease total cholesterol and triglyceride concentrations in the livers of both high-fat-diet and Triton WR1339 induced hyperlipidemic mice, and enhance the total hepatic lipase activities of them. These findings were further supported by the results derived from the experiments with Hep G2 cells in vitro. In addition, the proteins related to lipids metabolism were investigated using LC-MS/MS, indicating that genes of lipid metabolism and lipid transport were regulated by A. dhurica. The results from LC-MS/MS were further conformed by Western blot and real time PCR assays. A. dahurica could down-regulate the expression of catalase(CAT) and sterol carrier protein2(SCP2) and up-regulate the expression of lipid metabolism related genes-lipase member C(LIPC) and peroxisome proliferator-activated receptor gamma(PPARγ). In the Triton WR1339 mouse liver and Hep G2 cells in vitro, A. dahurica was able to increase the expression of LIPC and PPARγ, confirming the results from in vivo experiments. Imperatorin showed the same activity as A. dahurica, suggesting it was one of the major active ingredients of the herb. In conclusion, our work represented a first investigation demonstrating that A. dahurica was able to regulate lipid metabolism and could be developed as a novel approach to fighting against fatty liver and obesity. | LU Xi YUAN Zhi-Yi YAN Xiao-Jin LEI Fan JIANG Jing-Fei YU Xuan YANG Xiu-Wei XING Dong-Ming DU Li-Jun | 2016 | Chinese Journal of Natural Medicines2016，14，9： | 11 |
| 8 | Comparative proteogenomic analysis of the Leptospira interrogans virulence-attenuated strain IPAV against the pathogenic strain 56601显示文摘稀释毒力的螺旋体 interrogans serovar Lai 紧张 IPAV 被延长实验室经过从在中国孤立的高度剧毒的祖先的紧张导出。我们学习了 IPAV 的基因变化对病原的 L 经由比较分析使它变为无毒害。interrogans serovar Lai 紧张 56601。IPAV 紧张的完全的染色体顺序决心、使用与作比较,然后修正并且重新注解紧张 56601 的染色体顺序。除了他们的高度类似的 genomic,结构和基因顺序, 33 插入的一个总数, 53 删除和 301 个单个核苷酸的变化(SNV ) 在整个直接影响 101 基因的 IPAV 的染色体被检测,在他们的 5 ′ 的任何一个;在上游的区域或在他们的编码区域以内。在他们之中, 44 功能的基因的多数涉及信号 transduction,压力反应, transmembrane 运输和氮新陈代谢。基于量的液体,层析(LC )-MS/MS 数据揭示了的比较 proteomic 分析在 orthologs 的 1 627 选择的对之中,在 IPAV 的 174 基因拉紧,这是 upregulated,与主要在精力的班上的丰富生产和类脂化合物新陈代谢。相反,在紧张 56601 的 228 基因是 upregulated,与在蛋白质翻译和 DNA 复制 / 修理的范畴充实的多数。 genomic 和 proteomic 途径的联合在批评基因说明了那改变的表情或变化,例如编码 Ser/Thr kinase ,碳饥饿蛋白质 CstA ,夫酸安合成酶,GTP有约束力的蛋白质 BipA , ribonucleotide-diphosphate reductase 和磷酸盐 transporter 的那些,并且在脂蛋白或外部膜蛋白质的翻译侧面的改变是可能的在紧张 IPAV 说明毒力变细。 | Yi Zhong Xiao Chang Xing-Jun Cao Yan Zhang Huajun Zheng Yongzhang Zhu Chengsong Cai Zelin Cui Yunyi Zhang Yuan-Yuan Li Xiu-Gao Jiang Guo-Ping Zhao Shengyue Wang Yixue Li Rong Zeng Xuan Li Xiao-Kui Guo | 2011 | Cell Research2011，21，8： | 10 |
| 9 | Whole-Genome Resequencing of a Worldwide Collection of Rapeseed Accessions Reveals the Genetic Basis of Ecotype Divergence显示文摘Rapeseed (Brassica napus),an important oilseed crop,has adapted to diverse climate zones and latitudes by forming three main ecotype groups,namely winter,semiwinter,and spring types. However,genetic variations underlying the divergence of these ecotypes are largely unknown. Here,we report the global pattern of genetic polymorphisms in rapeseed determined by resequencing a worldwide collection of 991 germplasm accessions.A total of 5.56 and 5.53 million singlenucleotide polymorphisms (SNPs)as Well as 1.86 and 1.92 million InDels were identified by mapping reads to the reference genomes of 'Darmor-bzh'and 'Tapidor,'respectively.We generated a map of allelic drift paths that shows splits and mixtures of the main populations,and revealed an asymmetric evolution of the two subgenomes of B.napus by calculating the genetic diversity and linkage disequilibrium parameters.Selective-sweep analysis revealed genetic changes in genes orthologous to those regulating various aspects of plant development and response to stresses.A genome-wide association study identified SNPs in the promoter regions of FLOWERING LOCUS T and FLOWERING LOCUS C orthologs that corresponded to the different rapeseed ecotype groups. Our study provides important insights into the genomic footprints of rapeseed evolution and flowering-time divergence among three ecotype groups,and will facilitate screening of molecular markers for accelerating rapeseed breeding. | Dezhi Wu Zhe Liang Tao Yan Ying Xu Lijie Xuan Juan Tang Gang Zhou Ulrike Lohwasser Shuijin Hua Haoyi Wang Xiaoyang Chen Qian Wang Le Zhu Antony Maodzeka Nazim Hussain Zhilan Li Xuming Li Imran Haider Shamsi Ghulam Jilani Linde Wu Hongkun Zheng Guoping Zhang Boulos Chalhoub Lisha Shen Hao Yu Lixi Jiang | 2019 | Molecular Plant2019，12，1： | 10 |
| 10 | Helicobacter infection in hepatocellular carcinoma tissue显示文摘瞄准:调查 Helicobacter 种类(Helicobacter spp ) 是否能在肝细胞被检测癌(HCC ) 织物。方法:从有组织病理学说诊断的肝细胞癌(HCC ) 的 28 个病人的肝样品被学习。有另外的肝疾病的 22 个病人(5 与肝损伤, 7 与多孔的肝缝血管瘤, 6 与肝包囊并且 4 与肝石病) ,有胃的癌症的 25 个病人, 15 与结肠的癌症并且 15 与子宫的肌瘤用作控制。二活体检视从每个病人被获得。一个人为 Helicobacter spp 是有教养的。并且 DNA 的抽取,其它为扫描电子显微镜学(SEM ) 和原位杂交作好准备。样品在有微氧气的技术的哥伦比亚琼脂平皿上是有教养的。Helicobacter spp。被聚合酶链反应(PCR ) 与 Helicobacter spp 在从学习题目的活体检视检测。16S rRNA 教材。放大产品被南部的杂交识别并且进一步定序。而且,另外的基因(休假 A, cagA ) 为 Helicobacter pylori (H pylori ) 的 specific 被 PCR 也检测。Helicobacter spp。被 SEM 在活体检视观察。传播电子显微镜学(TEM ) 被执行识别有教养的积极 Helicobacter spp。Helicobacter spp 的存在。被原位杂交检测证实 Helicobacter 的类型。结果:在 HCC 和胃的癌症织物有教养的 Helicobacter 的积极的率是 10.7%(3/28 ) 并且 24%(6/25 ) 分别地。Helicobacter 微生物被典型外观在克在 TEM 上染色,积极 urease 和典型殖民地形态学上进一步识别。细菌被 SEM 在二件 HCC 样品的邻近的 hepatocytes 观察。球菌的数字比杆菌的大。细菌也在四件胃的癌症样品被发现。PCR 证明 HCC 和胃的癌症样品的积极的率分别地是 60.7% 和 72% ,当控制是 negative (P<0.01 ) 时。放大 PCR 的产品被南部的杂交识别并且定序。到 H pylori 的 16S rRNA 的相同是 97.80% 。样品被原位杂交为 Helicobacter spp 验证。16S rRNA-mRNA 并且证明是 H pylori 积极。在 HCC 和胃的癌症(P>0.05 ) 之间没有统计意义,但是 HCC 和控制的积极的率有统计意义(P<0.01 ) 。3 件仅仅 HCC 样品和 cagA 基因的 2 件胃的癌症样品被检测。任何一个都没在二个组为休假 A 与教材样品反应。至于 H pylori 的遗传型,类型 II 在类型上有偏爱我。结论:Helicobacter 感染在 HCC 病人的肝纸巾存在。Helicobacter spp。感染与 HCC 被联系,它需要进一步的研究。 | Shi-Ying Xuan Ning Li Xin Qiang Rong-Rong Zhou Yong-Xin Shi Wen-Jie Jiang | 2006 | World Journal of Gastroenterology2006，12，15： | 9 |
| 11 | Physicians’Perception of Palliative Care Consultation Service in a Major General Hospital in China显示文摘Objectives The in-hosptial palliative care consultation(PCC)is emerging as a routine service in some medical center in China.The current study evaluated how physicians in primary care team and consultation team perceive the PCC service for the purpose of investigating the effectiveness of this consultation model in a general hospital.Methods In-hosptial palliative care consultations have been carried out at Peking Union Medical College Hosptial by a dedicated consultation team,and37consultations were completed in2016.A questionnaire was designed for physicians in terms of its benefits to patients,their family as well as the primary care team.Physicians who applied for consultation in2016formally(requested from the department other than the Geriatrics)and informally(by rotating residents and unemployed visiting doctors in geriatric department)were invited to participate in the survey by scanning a two dimentional code on social networking platform.Results There were103physicians participated in the survey,including primary care physicians from the department of Internal Medicine(n=8),Gynaecology(n=16)and Surgery(n=13),rotating residents(n=30),visiting doctors(n=16)in Geriatric department,and PCC team members(n=20).94.0%of the non-PCC physicians agreed that PCC relieved the suffering of patients;89.2%thought PCC improved the quality of patients'life;there were91.6%,95.2%,90.4%physicians who felt it relieved the anxiety of patients,of family members and of care providers,respectively.There were96.4%physicians who felt it could ease the tension in physician-patient relationship;97.6%felt it lower the risk for medical negligence,and96.4%of doctors who applied for PPC felt satisfied with PCC service in terms of process and achieving objectives of consultation.More primary-team physician agree'PCC service helps the physicians better understand palliative care'than PCC members(97.6%vs.80%,P<0.05),while both were interested in learning more on palliative medicine(100%vs.96.4%,P>0.05). | Xuan Qu Nan Jiang Nan Ge Xiaohong Ning | 2018 | Chinese Medical Sciences Journal2018，33，4： | 9 |
| 12 | Value of endoscopic methylene blue and Lugol's iodine double staining and detection of GST-n and telomerase in the early diagnosis of esophageal carcinoma显示文摘AIM: To explore the expressions of GST-n and telomerase activity in esophageal carcinoma and premalignant lesions and to investigate the value of endoscopic methylene blue(MB) and Lugol's iodine double staining.METHODS: Seventy-two patients with esophagopathy were sprayed endoscopically with MB and Lugol's iodine in proper order and the areas stained blue and brown,and the area between the blue and brown stains were obtained. Depending on the pattern of mucosal staining,biopsy specimen was obtained. GST-n and telomerase activity in specimens were examined by immunohistochemistry and PCR-based silver staining telomeric repeat amplification protocol, respectively.RESULTS: After MB and Lugol's iodine staining, the area between both the colors was obtained in 64 of the 72patients and the areas were stained blue and brown in all of the 72 patients. Association test of two simultaneous ordinal categorical data showed a correlation between the esophageal mucosal staining and the esophageal histology(P<0.005). The expression of GST-n and telomerase activity in esophageal carcinoma and premalignant lesions increased. The expression of GST-n and telomerase activity in dysplasia and carcinoma was significantly higher than that in normal epithelium (P<0.005). The expression in hyperplasia was slightly higher than that in normal epithelium.With the lesions progressing from low- to moderate- to high-grade dysplasia, the positive rate increased (P<0.025).Expression of GST-n was correlated with that of telomerase activity in dysplasia and carcinoma ((ψ) = 0.4831, P<0.005;(ψ) = 0.3031, P<0.025, respectively); but there was no correlation between them in normal epithelium and hyperplasia.CONCLUSION: The expression of GST-n and telomerase may be an early event in the carcinogenesis of esophagus.They may play an induced and synergistic role with each other in the carcinogenesis of esophagus. Endoscopic MB and Lugol's iodine double staining and detection of GST-n and telomerase activity may contribute to the early diagnosis of esophageal carcinoma. | Xuan Zhu Shuang-Hong Zhang Kun-He Zhang Bi-Ming Li Jiang Chen | 2005 | World Journal of Gastroenterology2005，11，39： | 9 |
| 13 | Inhibitory effects of chitosan on superoxide anion radicals and lipid free radicals显示文摘With the electron spin resonance (ESR) technique, the inhibitory effects of chitosan on superoxide anion radicals and linoleic acid lipid radicals were found. The inhibitory ratio E for these two kinds of radicals is in proportion to the concentration of chitosan. It was also observed that E for linoleic acid lipid radicals increased with the increase of the degree of deacetylation and decreased with the increase of the molecular weight of chitosan. | Wenjun Li Xuan Jiang Peihua Xue Shiming Chen | 2002 | Chinese Science Bulletin2002，47，11： | 9 |
| 14 | Clinical and genetic findings in a Chinese family with VDR-associated hereditary vitamin D-resistant rickets显示文摘Hereditary vitamin D-resistant rickets(HVDRR) is a rare autosomal recessive disorder characterized by severe rickets,hypocalcemia,hypophosphatemia,secondary hyperparathyroidism,and elevated alkaline phosphatase.This disorder is caused by homogeneous or heterogeneous mutations affecting the function of the vitamin D receptor(VDR),which lead to complete or partial target organ resistance to the action of 1,25-dihydroxy vitamin D.A non-consanguineous family of Chinese Han origin with one affected individual demonstrating HVDRR was recruited,with the proband evaluated clinically,biochemically and radiographically.To identify the presence of mutations in the VDR gene,all the exons and exon–intron junctions of the VDR gene from all family members were amplified using PCR and sequenced.The proband showed rickets,progressive alopecia,hypocalcemia,hypophosphatemia,secondary hyperparathyroidism,and elevated alkaline phosphatase.She also suffered from epilepsy,which is rarely seen in patients with HVDRR.Direct sequencing analysis revealed a homozygous missense mutation c.122G4A(p.C41Y) in the VDR gene of the proband,which is located in the first zinc finger of the DNA-binding domain.Both parents had a normal phenotype and were found to be heterozygous for this mutation.We report a Chinese Han family with one individual affected with HVDRR.A homozygous missense mutation c.122G4A(p.C41Y) in the VDR gene was found to be responsible for the patient's syndrome.In contrast to the results of treatment of HVDRR in other patients,our patient responded well to a supplement of oral calcium and a low dose of calcitriol. | Qianqian Pang Xuan Qi Yan Jiang Ou Wang Mei Li Xiaoping Xing Jin Dong Weibo Xia | 2016 | Bone Research2016，4，1： | 9 |
| 15 | Advances in biomaterials and regenerative medicine for primary ovarian insufficiency therapy显示文摘Primary ovarian insufficiency(POI)is an ovarian dysfunction that affects more than 1%of women and is characterized by hormone imbalances that afflict women before the age of 40.The typical perimenopausal symptoms result from abnormal levels of sex hormones,especially estrogen.The most prevalent treatment is hormone replacement therapy(HRT),which can relieve symptoms and improve quality of life.However,HRT cannot restore ovarian functions,including secretion,ovulation,and fertility.Recently,as part of a developing field of regenerative medicine,stem cell therapy has been proposed for the treatment of POI.Thus,we recapitulate the literature focusing on the use of stem cells and biomaterials for POI treatment,and sum up the underlying mechanisms of action.A thorough understanding of the work already done can aid in the development of guidelines for future translational applications and clinical trials that aim to cure POI by using regenerative medicine and biomedical engineering strategies. | Sichen Zhang Dashuai Zhu Xuan Mei Zhenhua Li Junlang Li Mengjie Xie Halle Jiang Williams Lutz Shaowei Wang Ke Cheng | 2021 | Bioactive Materials2021，6，7： | 9 |
| 16 | A phenolic glycoside from Fagopyrum dibotrys (D.Don) Hara显示文摘A new phenolic constituent along with five known compounds were isolated from Fagopyrum dibotrys(D.Don)Hara.The new compound was characterized as 1,3-dimethoxy-2-O-β-xylo-pyranosyl-5-O-β-glucopyranosyl-benzene,by spectroscopic analysis and enzymatic hydrolysis. | Zheng Zhong Bai Xiao Hui Zhang Li Jiang Xuan Feng Kui Mo | 2007 | Chinese Chemical Letters2007，18，9： | 8 |
| 17 | Specific HLA-DQB1 alleles associated with risk for development of hepatocellular carcinoma:A meta-analysis显示文摘AIM:To evaluate the association of human leukocyte antigen(HLA)-DQB1 alleles with hepatocellular carcinoma(HCC) through meta-analysis of published data.METHODS:Case-control studies on HLA-DQB1 allele association with HCC published up to January 2010 were included in the analyses.The odds ratios(ORs) of HLADQB1 allele distributions in HCC patients were analyzed and compared with healthy controls.The meta-analysis software REVMAN 5.0 was applied for investigating heterogeneity among individual studies and for summarizing all the studies.A meta-analysis was performed using fixed-effect or random-effect methods,depending on the absence or presence of significant heterogeneity.Seven case-control studies containing 398 cases and 594 controls were included in the final analysis.RESULTS:Among the five family alleles,two(DQB1*02 and DQB1*03) were found to be significantly associated with the risk of HCC.The combined OR for the association of DQB1*02 and DQB1*03 allele with the risk for HCC was 1.78(95% CI:1.05-3.03,P = 0.03) and 0.65(95% CI:0.48-0.89,P = 0.007),respectively.Among the 13 specific alleles,two(DQB1*0502 and DQB1*0602) were significantly associated with risk of HCC.The combined OR for the association of DQB1*0502 and DQB1*0602 allele with the risk for HCC was 1.82(95% CI:1.14-2.92,P = 0.01) and 0.58(95% CI:0.36-0.95,P = 0.03),respectively.No significant association was established for other HLA-DQB1 family alleles and specific alleles.CONCLUSION:Our results support the hypothesis that specific HLA-DQB1 allele families and alleles might influence the susceptibility or resistance to HCC,although it needs further investigations. | Yong-Ning Xin Zhong-Hua Lin Xiang-Jun Jiang Shu-Hui Zhan Quan-Jiang Dong Qing Wang Shi-Ying Xuan | 2011 | World Journal of Gastroenterology2011，17，17： | 8 |
| 18 | Mechanism underlying berberine's effects on HSP70/TNFα under heat stress:Correlation with the TATA boxes显示文摘Heat stress can stimulate an increase in body temperature,which is correlated with increased expression of heat shock protein 70(HSP70) and tumor necrosis factor α(TNFα).The exact mechanism underlying the HSP70 and TNFα induction is unclear.Berberine(BBR) can significantly inhibit the temperature rise caused by heat stress,but the mechanism responsible for the BBR effect on HSP70 and TNFα signaling has not been investigated.The aim of the present study was to explore the relationship between the expression of HSP70 and TNFα and the effects of BBR under heat conditions,using in vivo and in vitro models.The expression levels of HSP70 and TNFα were determined using RT-PCR and Western blotting analyses.The results showed that the levels of HSP70 and TNFα were up-regulated under heat conditions(40 °C).HSP70 acted as a chaperone to maintain TNFα homeostasis with rising the temperature,but knockdown of HSP70 could not down-regulate the level of TNFα.Furthermore,TNFα could not influence the expression of HSP70 under normal and heat conditions.BBR targeted both HSP70 and TNFα by suppressing their gene transcription,thereby decreasing body temperature under heat conditions.In conclusion,BBR has a potential to be developed as a therapeutic strategy for suppressing the thermal effects in hot environments. | JIANG Jing-Fei LEI Fan YUAN Zhi-Yi WANG Yu-Gang WANG Xin-Pei YAN Xiao-Jin YU Xuan XING Dong-Ming DU Li-Jun | 2017 | Chinese Journal of Natural Medicines2017，15，3： | 8 |
| 19 | Effect of particle gradation of aluminum on the explosion field pressure and temperature of RDX-based explosives in vacuum and air atmosphere显示文摘To optimize the energy output and improve the energy utilization efficiency of an aluminized explosive,an explosion device was developed and used to investigate the detonation pressure and temperature of R1(A16)aluminum powder and the aluminum powder particle gradation of R2(Al6+Al13),R3(Al6+Al24)and R4(Al6+AI flake)in a confined space.By using gas chromatography,quantitative analysis and calculations were carried out to analyze the gaseous detonation products.Finally,the reaction ratios of the aluminum powder and the explosion reaction equations were calculated.The results show that in a confined space,the quasi-static pressures and equilibrium temperature of the aluminum powder in air are higher than in vacuum.In vacuum,the quasi-static pressures and equilibrium temperatures of the samples in descending order are R1>R3>R4>R2 and R3>R4>R1>R2,respectively.In air,the quasi-static pressures and equilibrium telperatures of the samples in descending order are R1>R2>R4>R3 and R1>R4>R2>R3,respectively.R4(Al6+AI flake)and R3(Al6+A124)have relatively higher temperatures after detonation,which shows that the particle gradation method can enhance the reaction energy output of aluminum during the initial reaction stage of the explosion and increase the reaction ratio by10.6%and 8.0%,respectively.In air,the reaction ratio of AI6 aluminum powder can reach as high as 78.16%,and the reaction ratio is slightly reduced after particle gradation.Finally,the reaction equations of the explosives in vacuum and in air were calculated by quantitative analysis of the explosion products,which provides a powerful basis for the study of RDX-based explosive reactions. | Fan Jiang Xiao-feng Wang Ya-feng Huang Bo Feng Xuan Tian Yu-lei Niu Kun Zhang | 2019 | Defence Technology(防务技术)2019，15，6： | 8 |
| 20 | 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 |
您所在的机构暂未开通此部分的功能，请联系管理员