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| 1 | TGF-β/BMP signaling and other molecular events: regulation of osteoblastogenesis and bone formation显示文摘Transforming growth factor-beta(TGF-β)/bone morphogenetic protein(BMP) plays a fundamental role in the regulation of bone organogenesis through the activation of receptor serine/threonine kinases. Perturbations of TGF-β/BMP activity are almost invariably linked to a wide variety of clinical outcomes, i.e., skeletal, extra skeletal anomalies, autoimmune, cancer, and cardiovascular diseases. Phosphorylation of TGF-β(I/II) or BMP receptors activates intracellular downstream Smads, the transducer of TGF-β/BMP signals. This signaling is modulated by various factors and pathways, including transcription factor Runx2. The signaling network in skeletal development and bone formation is overwhelmingly complex and highly time and space specific.Additive, positive, negative, or synergistic effects are observed when TGF-β/BMP interacts with the pathways of MAPK, Wnt, Hedgehog(Hh), Notch, Akt/m TOR, and mi RNA to regulate the effects of BMP-induced signaling in bone dynamics. Accumulating evidence indicates that Runx2 is the key integrator, whereas Hh is a possible modulator, mi RNAs are regulators, and b-catenin is a mediator/regulator within the extensive intracellular network. This review focuses on the activation of BMP signaling and interaction with other regulatory components and pathways highlighting the molecular mechanisms regarding TGF-β/BMP function and regulation that could allow understanding the complexity of bone tissue dynamics. | Md Shaifur Rahman Naznin Akhtar Hossen Mohammad Jamil Rajat Suvra Banik Sikder M Asaduzzaman | 2015 | Bone Research2015,3,1: | 53 |
| 2 | 血管内超声去肾交感神经术治疗高血压:一项多中心,国际,单盲,随机,假手术对照试验显示文摘早期研究表明,基于射频的去肾交感神经术可降低中度高血压患者的血压。研究者研究了在没有使用抗高血压药物的情况下,使用血管内超声去。肾交感神经术是否会降低高血压患者的动态血压。 | 刘青 叶鹏 Azizi M Schmieder RE Mahfoud F Weber MA Daemen J Davies J Basile J Kirtane AJ Wang Y Lobo MD Saxena M Feyz L Rader F Lurz P Sayer J Sapoval M Levy T Sanghvi K Abraham J Sharp ASP Fisher NDL Bloch MJ Reeve-Stoffer H Coleman L Mullin C Mauri L | 2018 | 中华高血压杂志2018,26,10: | 27 |
| 3 | Genomics identifies medulloblastoma subgroups that are enriched for specific genetic alterations显示文摘 | Thompson MC Fuller C Hogg TL Dalton J Finkelstein D Lau CC Chintagumpala M Adesina A Ashley DM KeUie SJ Taylor MD Curran T Gajjar A Gilbertson RJ | 2006 | 中国神经肿瘤杂志2006,4,1: | 17 |
| 4 | Liver expression of steroid hormones and Apolipoprotein D receptors in hepatocellular carcinoma显示文摘AIM: To evaluate the tissular expression of Androgen (A), Estrogen (E) and Progesterone (Pg) receptors, and Apolipoprotein D (ApoD), in liver tumors from resected hepatocellular carcinoma (HCC) cases in order to assess their possible relationship to prognosis. METHODS: We performed an immunohistochemical study using tissue microarrays (containing more than 260 cancer specimens, from 31 HCC patients and controls) to determine the presence of specif ic antibodies against AR, ER, PgR and ApoD, correlating their findings with several clinico-pathological and biological variables. The staining results were categorized using a semi-quantitive score based on their intensity, and the percentage of immunostained cells was measured. RESULTS: A total of 21 liver tumors (67.7%) were positive for AR; 16 (51.6%) for ER; 26 (83.9%) for PgR and 12 (38.7%) stained for ApoD. We have found a wide variability in the immunostaining score values for each protein, with a median (range) of 11.5 (11.5-229.5) for AR; 11.1 (8.5-65) for ER; 14.2 (4-61) for PgR; and 37.7 (13.8-81.1) for ApoD. A history of heavy ethanol consumption, correlated positively with AR and PgR and negatively with ER status. HCV chronic infection also correlated positively with AR and PgR status. However, the presence of ApoD immunostaining did not correlate with any of these variables. Tumors with a positive immuno-staining for PgR showed a better prognosis. CONCLUSION: Our results indicate a moderate clinical value of the steroid receptor status in HCC, emphasizing the need to perform further studies in order to evaluate the possible role of new hormonal-based therapies. | FJ Vizoso M Rodriguez A Altadill ML González-Diéguez A Linares LO González S Junquera F Fresno-Forcelledo MD Corte L Rodrigo | 2007 | World Journal of Gastroenterology2007,13,23: | 11 |
| 5 | Fabrication of Bi_2O_3/TiO_2nanocomposites and their applications to the degradation of pollutants in air and water under visible-light显示文摘A nanoheterojunction composite photocatalyst Bi2O3/TiO2working under visible-light(λ 420 nm) was prepared by combining two semiconductors Bi2O3 and TiO2 varying the Bi2O3/TiO2molar ratio. Maleic acid was employed as an organic binder to unite Bi2O3 and TiO2 nanoparticles. The SEM, TEM, XRD and diffuse reflectance spectra were utilized to characterize the prepared Bi2O3/TiO2nanoheterojunction. The nanocomposite exhibited unusual high photocatalytic activity in decomposing 2-propanol in gas phase and phenol in aqueous phase and, evolution of CO2 under visible light irradiation while the end members exhibited low photocatalytic activity. The composite was optimized to 5 mol% Bi2O3/TiO2. The remarkable high photocatalytic efficiency originates from the unique relative energy band position of Bi2O3 and TiO2 as well as the absorption of visible light by Bi2O3. | Ashok Kumar Chakraborty Md Emran Hossain Md Masudur Rhaman K M A Sobahan | 2014 | Journal of Environmental Sciences2014,26,2: | 7 |
| 6 | Efficient Algorithm for Prolonging Network Lifetime of Wireless Sensor Networks显示文摘One of the fundamental design challenges in designing a Wireless Sensor Network (WSN) is to maximize the network lifetime,as each sensor node of the network is equipped with a limited power battery.To overcome this challenge,different methods were developed in the last few years using such techniques as network protocols,data fusion algorithms using low power,energy efficient routing,and locating optimal sink position.This paper focuses on finding the optimal sink position.Relay nodes are introduced in conjunction with the sensor nodes to mitigate network geometric deficiencies since in most other approaches the sensor nodes close to the sink become heavily involved in data forwarding and,thus,their batteries are quickly depleted.A Particle Swarm Optimization (PSO) based algorithm is used to locate the optimal sink position with respect to those relay nodes to make the network more energy efficient.The relay nodes communicate with the sink instead of the sensor nodes.Tests show that this approach can save at least 40% of the energy and prolong the network lifetime. | Md Nafees Rahman M A Matin | 2011 | Tsinghua Science and Technology2011,16,6: | 6 |
| 7 | CTGF, intestinal stellate cells and carcinoid fi brogenesis显示文摘AIM: To investigate the role of small intestinal carcinoid tumor-derived fibrotic mediators, TGFβ1 and CTGF, in the mediation of fi brosis via activation of an 'intestinal' stellate cell. METHODS: GI carcinoid tumors were collected for Q RT-PCR analysis of CTGF and TGFβ1. Markers of stellate cell desmoplasia were identified in peritoneal fibrosis by immunohistochemistry and stellate cells cultured from fresh resected fibrotic tissue. CTGF and TGFβ1 were evaluated using quantitative tissue array profi ling (AQUA analysis) in a GI carcinoid tissue microarray (TMA) with immunostaining and correlated with clinical and histologically documented fi brosis. Serum CTGF was analyzed using a sandwich ELISA assay. RESULTS: Message levels of both CTGF and TGFβ1 in SI carcinoid tumors were signifi cantly increased (> 2-fold, P < 0.05) versus normal mucosa and gastric (non-f ibrotic) carcinoids. Activated stellate cells and markers of stellate cell-mediated fi brosis (vimentin, desmin) were identifi ed in histological fibrosis. An intestinal stellate cell was immunocytochemically and biochemically characterized and its TGFβ1 (10-7M) initiated CTGF transcription response (> 3-fold, P < 0.05) demonstrated. In SI carcinoid tumor patients with documented fi brosis, TMA analysis demonstrated higher CTGF immunostaining (AQUA Score: 92 ± 8; P <0.05), as well as elevated TGFβ1 (90.6 ± 4.4, P < 0.05). Plasma CTGF (normal 12.5 ± 2.6 ng/mL) was increased in SI carcinoid tumor patients (31 ± 10 ng/mL, P < 0.05) compared to non-fi brotic GI carcinoids (< 15 ng/mL).CONCLUSION: SI carcinoid tumor fibrosis is a CTGF/ TGFβ1-mediated stellate cell-driven fibrotic response. The delineation of the biology of fibrosis will facilitate diagnosis and enable development of agents to obviate its local and systemic complications. | M Kidd IM Modlin MD Shapiro RL Camp SM Mane W Usinger JR Murren | 2007 | World Journal of Gastroenterology2007,13,39: | 5 |
| 8 | Source identification, contamination status and health risk assessment of heavy metals from road dusts in Dhaka, Bangladesh显示文摘In this study, concentrations of Cr, Mn, Ni, Cu, Zn, Cd and Pb were determined in road dusts collected from different locations in Dhaka to assess source, contamination status and health risk. Energy-dispersive X-ray fluorescence spectroscopy and energy-dispersive X-ray spectroscopy were used to determine Cr, Mn, Ni, Cu, Zn, Cd and Pb and their mean concentrations were 162.27 ± 29.46, 721.18 ± 180.14, 35.65 ± 12.55, 104.56 ± 128.33, 515.32 ± 321.90,BDL, and 342.82 ± 591.20 mg/kg, respectively. Among the heavy metals, highest concentrations of Cu, Zn and Pb were found at urban sites-7(municipal waste dumping) and 8(medical waste incineration). Highest concentration of Cr followed by Cu and Zn was found at site-5(Tejgaon, urban). Principal component analysis revealed that anthropogenic activities are the potential sources for Cr, Ni, Cu, Zn and Pb while earth crust for Mn. Pollution index and pollution load index results suggested that all the sites were contaminated and/or degraded by Cr, Cu, Zn and Pb except sites-9(urban), 10(sub-urban), 11(rural) while sites-7 and 8(urban) were extremely degraded. For noncarcinogenic health risk, hazard quotient values for dermal were higher compared to that of inhalation/ingestion. Though hazard index values were less than 1 at all the sites, these were at least one order of magnitude higher for children group than that of adult group, thus the children group may face more noncarcinogenic health risk at sites -7 and 8. Values of incremental lifetime cancer risk were from 10to 10showed no carcinogenic health risk by road dusts contaminated with the heavy metals. | Aklima Nargis Ahsan Habib Md Nazrul Islam Kai Chen Md Shafiqul Islam Sarker A N M Al-Razee Wenbin Liu Guorui Liu Minggang Cai | 2022 | Journal of Environmental Sciences2022,34,11: | 3 |
| 9 | Frequent amplification of a chr19q13.41 microRNA polycistron in aggressive primitive neuroectodermal brain tumors显示文摘 | Li M Lee KF Lu Y Clarke I Shih D Eberhart C Collins VP Van Meter T Picard D Zhou L Boutros PC Modena P Liang ML Scherer SW Bouffet E Rutka JT Pomeroy SL Lau CC Taylor MD Gajjar A Dirks PB Hawkins CE Huang A. | 2009 | 中国神经肿瘤杂志2009,7,4: | 3 |
| 10 | 冠状动脉钙化在高血压患者心血管病风险分层中的作用显示文摘研究者研究了冠状动脉钙化(coronary artery calcium,CAC)在成人高血压心血管病风险分层中的作用,包括符合收缩压干预试验(systolic blood pressure intervention trial,SPRINT)标准的患者。此外,研究者使用CAC来确定心血管病死亡率与SPRINT中标准降压组心血管病死亡率('SPRINT水平')相当的高血压成年患者,其可能受益于强化降压治疗。研究人群包括来自CAC研究联盟的高血压患者16 167例,其中6375例患者构成'SPRINT类似人群'。研究者按CAC分类(0,1~99,100~399,≥400)比较了多因素校正后的冠状动脉粥样硬化性心脏病(冠心病)和心血管病死亡风险比。 | 刘青(译) 叶鹏(摘、审校) Uddin SMI Mirbolouk M Kianoush S Orimoloye OA Dardari Z Whelton SP Miedema MD Nasir K Rumberger JA Shaw LJ Berman DS Budoff MJ McEvoy JW Matsushita K Blaha MJ Graham G | 2019 | 中华高血压杂志2019,27,5: | 3 |
| 11 | Treatment of intracranial gliomas with bone marrow- derived dendritic cells pulsed with tumor antigens显示文摘 | Linda M Liau MD Keith L | 1999 | J Neurosurg1999,90,6: | 2 |
| 12 | Malignant struma ovari: a case report and analysis of cases reportcd in the literature with focus on survival and 131I therapy显示文摘 | Christopher P Desimone MD Subodh M | 2003 | Gynecol Oncol2003,89,3: | 2 |
| 13 | Report of the radionuclides in nephrourology committee on renal clearance 显示文摘 | Blaufox MD Aurell M Bubeck B | 1996 | J Nucl Med1996,37,: | 2 |
| 14 | The Use of Simvastatin for the Prevention of Gallstones in the Lithogenic Prairie Dog Model显示文摘 | Kurt G Davis MD Thomas M Wertin MD John P Schriver MD FACS | 2003 | Obesity Surgery2003,,6: | 2 |
| 15 | 冠状动脉钙化用于指导个性化阿司匹林治疗以预防心血管病:基于多民族动脉粥样硬化研究显示文摘最近美国心脏病学会/美国心脏协会(American College of Cardiology/American Heart Association,ACC/AHA)的一级预防指南建议,低剂量阿司匹林治疗仅适用于年龄40~70岁、患动脉粥样硬化性心血管病(atherosclerotic cardiovascular disease,ASCVD)风险较高,但出血风险不高的成年人。然而,尚不清楚如何更准确地识别出这些患者。根据2019年降低心血管病相对危险度和出血风险的阿司匹林荟萃分析研究数据,本研究旨在评估冠状动脉钙化(coronary artery calcium,CAC)在指导阿司匹林在一级预防中如何使用的价值。 | 周卫(译) 叶鹏(摘/审校) Achirica MC Miedema MD McEvoy JW Rifai MA Greenland P Dardari Z Budoff M Blumenthal RS Yeboah J Duprez DA Mortensen MB Dzaye O Hong J Nasir K Blaha MJ | 2020 | 中华高血压杂志2020,28,4: | 2 |
| 16 | Appendectomy versus Antibiotic Treatment in Acute Appendicitis. A Prospective Multicenter Randomized Controlled Trial显示文摘 | Johan Styrud MD PhD Staffan Eriksson MD PhD Ingemar Nilsson MD PhD Gunnar Ahlberg MD PhD Staffan Haapaniemi MD PhD Gunnar Neovius MD Lars Rex MD Ibrahim Badume MD Lars Granstr?m MD PhD | 2006 | World Journal of Surgery2006,,6: | 2 |
| 17 | Periareolar skinsparing mastectomy and latissimus dorsi flap with biodimensional expander implant reconstruction : surgical planning, outcome, and Complications 显示文摘 | Alexandre M Monhoz MD Claudia A | 2007 | Plast Recanstr Surg2007,119,6: | 1 |
| 18 | Early lung cancer detection using spiral computed tomography and positron emission tomography 显示文摘 | Bastarrika G Garcia-Velloso M J Lozano MD | 2005 | Am J Respir Crit Care Med2005,171,12: | 1 |
| 19 | Problems associated with the direct torque eonlrol of an interior permanent magnet synchronous motor drive and their remediers 显示文摘 | Rahman M F Haque Md E Tang Lixin Zhong Limin | 2004 | 1EEE Transactions on Industrial Electronics (S0278-0046)2004,51,4: | 1 |
| 20 | Endotoxin as a grug target显示文摘 | Steven M Opal MD Gluck T | 2003 | Crit Care Med2003,,: | 1 |