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Abstract
The leucine-rich repeat and Ig domain containing 1 gene (LINGO1), recently considered to be conferred increased risk of essential tremor (ET), has been also implicated in Parkinson disease (PD). As the two common movement disorders have overlapping clinical and pathological features, it has been postulated that the LINGO1 gene may play a role in the pathogenesis of the two diseases. Here, we review published reports of the LINGO1 variants in ET and PD in an attempt to better understand the molecular and pathogenic relationship of LINGO1 to the two disorders.
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152
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Zhang SM, Lin L, Deng H, Gao X, Bilotti E, Peijs T, Zhang Q, Fu Q. Synergistic effect in conductive networks constructed with carbon nanofillers in different dimensions. EXPRESS POLYM LETT 2012. [DOI: 10.3144/expresspolymlett.2012.17] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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153
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Liang H, Zheng W, Xu H, Lei J, Song Z, Jiang X, Zeng Z, Deng H. 3.055 GENETIC ANALYSIS OF THE LINGO4 GENE IN PATIENTS WITH ESSENTIAL TREMOR. Parkinsonism Relat Disord 2012. [DOI: 10.1016/s1353-8020(11)70791-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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154
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Fan P, Zhang S, Tian H, Yan N, Dai L, Zhang X, Cheng L, Li C, Li Y, Chen X, Shi G, Yang Y, Wei Y, Deng H. Enhanced chemosensitivity to CPT-11 in colorectal carcinoma xenografts by small hairpin RNA interference targeting PLK1. Neoplasma 2012; 59:676-84. [PMID: 22862168 DOI: 10.4149/neo_2012_086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Commonly used drugs for the treatment of colon{} cancer patients like CPT-11 shows severe side effects or induces resistance in clinical settings. Thus, we analyzed a combination of PLK1 (polo-like kinase 1)-specific short hair RNA (shRNA), a potent tool to destroy mitosis in cancer cells, together with CPT-11 to enhance drug sensitivity. Cellular proliferation and apoptosis were determined in SW620 colorectal carcinoma cells. Knockdown of cellular PLK1 led to the decreased mRNA and PLK1 protein in RT-PCR and western blot assay. The viability declined (p<0.001) in MTT assay and colony formation assay, and the number of apoptotic cells was clearly increased (p<0.01) in flow cytometric analysis and Hoechst 33258 staining compared with control cells after incubation with PLK1-specific shRNA and SN-38. We found the level of cleaved PARP was also increased in vitro. In vivo, employment of shRNA targeting PLK1 improved the sensitivity to treat SW620 nude mouse model toward CPT-11. The combination therapy inhibited cellular proliferation and promoted apoptosis observed at the percentage of PCNA and caspase3 by immunohistochemistry, accompanied with TUNEL assay. As we expect, the combination treatment delayed tumor growth (p<0.01) and simultaneously reduced tumor weight (p<0.01) compared with control group. Taken together, combination of PLK1-specific shRNA interference with low-dose CPT-11 triggered a antitumor efficacy and represented a potential strategy to treat colon cancer.
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155
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Wang JC, Chen P, Chen L, Wang K, Deng H, Chen F, Zhang Q, Fu Q. Preparation and properties of poly(vinylidene fluoride) nanocomposites blended with graphene oxide coated silica hybrids. EXPRESS POLYM LETT 2012. [DOI: 10.3144/expresspolymlett.2012.33] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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156
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Hirsch R, Deng H, Laohachai MN. Azithromycin in periodontal treatment: more than an antibiotic. J Periodontal Res 2011; 47:137-48. [PMID: 22050485 DOI: 10.1111/j.1600-0765.2011.01418.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Azithromycin is a macrolide antibiotic used extensively in medicine for the treatment of a wide range of infections such as upper respiratory tract infections, middle ear infections, sexually transmitted infections and trachoma. It is also effective against the most common periodontopathogens. The versatility of the macrolides extends beyond their antibiotic properties as a result of their well-documented immune-modulating/anti-inflammatory effects. Macrolides, including azithromycin, are therefore used to treat diseases not associated with bacteria, such as severe asthma, chronic obstructive pulmonary diseases and, more recently, cystic fibrosis. Azithromycin is concentrated in neutrophils, macrophages and particularly fibroblasts; all of these cells are central players in the pathogenesis of most periodontal diseases. This paper reviews the diverse properties of azithromycin and the clinical periodontal studies of its effects in both the treatment of periodontitis and in resolving drug-related gingival overgrowth. Evidence exists to support the use of a single course of azithromycin in the treatment of advanced periodontal diseases. Azithromycin could have a triple role in the treatment and resolution of periodontal diseases: suppressing periodontopathogens, anti-inflammatory activity and healing through persistence at low levels in macrophages and fibroblasts in periodontal tissues, even after a single course of three tablets. If future periodontal research confirms these properties, it could become a valuable host-modulator in periodontal treatment.
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157
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Chen S, Lin C, Schubert L, Li S, Deng H, Enke C, Zhou S. Does Pancreatic Head Tumor Motion on the 4D-CT Accurately Predict the Tumor Motion during the Treatment for Patients Receiving Gated Stereotactic Body Radiation Therapy (SBRT)? Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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158
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Zhu FF, Zhang PB, Zhang DH, Sui X, Yin M, Xiang TT, Shi Y, Ding MX, Deng H. Generation of pancreatic insulin-producing cells from rhesus monkey induced pluripotent stem cells. Diabetologia 2011; 54:2325-36. [PMID: 21755313 DOI: 10.1007/s00125-011-2246-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 06/16/2011] [Indexed: 02/08/2023]
Abstract
AIMS/HYPOTHESIS The generation of induced pluripotent stem cells (iPSCs) provides a promising possibility for type 1 diabetes therapy. However, the generation of insulin-producing cells from iPSCs and evaluation of their efficacy and safety should be achieved in large animals before clinically applying iPSC-derived cells in humans. Here we try to generate insulin-producing cells from rhesus monkey (RM) iPSCs. METHODS Based on the knowledge of embryonic pancreatic development, we developed a four-stage protocol to generate insulin-producing cells from RM iPSCs. We established a quantitative method using flow cytometry to analyse the differentiation efficiency. In addition, to evaluate the differentiation competence and function of RM iPSC-derived cells, transplantation of stage 3 and 4 cells into immunodeficient mice was performed. RESULTS RM iPSCs were sequentially induced to definitive endoderm (DE), pancreatic progenitors (PP), endocrine precursors (EP) and insulin-producing cells. PDX1(+) PP cells were obtained efficiently from RM iPSCs (over 85% efficiency). The TGF-β inhibitor SB431542 promoted the generation of NGN3(+) EP cells, which can generate insulin-producing cells in vivo upon transplantation. Finally, after this four-stage differentiation in vitro, insulin-producing cells that could secrete insulin in response to glucose stimulation were obtained. When transplanted into mouse models for diabetes, these insulin-producing cells could decrease blood glucose levels in approximately 50% of the mice. CONCLUSIONS/INTERPRETATION We demonstrate for the first time that RM iPSCs can be differentiated into functional insulin-producing cells, which will provide the basis for investigating the efficacy and safety of autologous iPSC-derived insulin-producing cells in a rhesus monkey model for type 1 diabetes therapy.
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159
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Tian S, Huang F, Gao J, Li P, Ouyang X, Zhou S, Deng H, Yan Y. Ventrolateral prefrontal cortex is required for fear extinction in a modified delay conditioning paradigm in rats. Neuroscience 2011; 189:258-68. [DOI: 10.1016/j.neuroscience.2011.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 04/28/2011] [Accepted: 05/01/2011] [Indexed: 10/18/2022]
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160
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Ji F, Deng H, Jia X, Liu L. PP-226 Large aggregate in hemorrhagic fever with renal syndrome. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60376-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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161
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Zhang L, Wang P, Jiang X, Qian Z, Liu G, Lei L, Liu X, Lei X, Nan X, Wu J, Yue Y, Zhang Z, Li W, Deng H, Xia Y, Yu H, Wang S. OL-049 Evaluation on external quality control for diagnosis of Anaplasmosis in China. Int J Infect Dis 2011. [DOI: 10.1016/s1201-9712(11)60111-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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162
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Ganly I, Yang L, Morris L, Palmer F, Deng H, Ahn J. O68. Association of the oral microbiome with cigarette smoking and oral cancer. Oral Oncol 2011. [DOI: 10.1016/j.oraloncology.2011.06.179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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163
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Mensah-Brown N, Enke C, Deng H, Zhou S, Li S. SU-E-T-751: Clinical Comparison of Point Source and Line Source Approximations for I-125 Brachytherapy Seeds. Med Phys 2011. [DOI: 10.1118/1.3612715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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164
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Du H, Li S, Deng H, Zhou S. SU-E-T-753: Theoretical Investigation of Prostate Permanent Implant Treatment Planning Algorithm. Med Phys 2011. [DOI: 10.1118/1.3612717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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165
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Deng H, Li S. SU-E-T-282: Magnitude and Impact of Localization Error in Stereotactic Radiosurgery(SRS) Treatments. Med Phys 2011. [DOI: 10.1118/1.3612233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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166
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Lu J, Deng H, Tang R, Hsu C, Kindler HL, Fuchs CS, Gansert JL, Bray S, Suzuki SS, Loh E, Zhu M. Exposure-response (E-R) analysis to facilitate phase III (P3) dose selection for ganitumab (GAN, AMG 479) in combination with gemcitabine (G) to treat metastatic pancreatic cancer (mPC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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167
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McCaffery I, Tudor Y, Deng H, Tang R, Badola S, Kindler HL, Fuchs CS, Loh E, Patterson SD, Chen L, Gansert JL. Effect of baseline (BL) biomarkers on overall survival (OS) in metastatic pancreatic cancer (mPC) patients (pts) treated with ganitumab (GAN; AMG 479) or placebo (P) in combination with gemcitabine (G). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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168
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Deng H, Chen J, Inturi RB, Barnard JA. Growth, Structure and Stress of DC Magnetron Sputtered TiB2 Thin Films. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-356-181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractTiB2 is a very hard refractory compound that strongly resists erosion and shows metallic luster and good electrical conductivity. It has potential applications in protective coating systems. This paper investigates the microstructure and stresses of as-deposited TiB2 thin films ranging from 2000 °A to 4000 °A thick produced by dc magnetron sputtering as a function of sputtering power and Ar pressure. Three power levels: 100, 400, 600 W, and four pressures: 3, 5, 8, and 12 mTorr were used. X-ray diffraction studies indicate that two types of crystalline structure are formed: a randomly oriented fine crystalline structure and a coarser grained (001) textured structure, depending on the sputtering power and pressure. As-deposited stresses at different powers all show a transition from compression to tension as the Ar pressure increases. The relationship between the processing parameters, microstructure and residual stresses is discussed. The effects of the deposition power and pressure on the residual stress transition of TiB2 thin films are clearly mapped out by 3-D and contour maps.
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Song T, Huang C, Yang A, Yao Y, Chen Y, Liu J, Fang PH, Liu Y, Lu GY, Li Z, Li XF, Hou Y, Wang YS, Zhao Q, Zhang S, Huang H, Zhang Y, Deng H, Yu S, Huang C, Yu S, Zhao Q, Huang H, Chen D, Cui H, Hong X, Qin M, Salim M, Huang C. CSPE Young Investigator Award Session. Europace 2011. [DOI: 10.1093/europace/euq490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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170
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Lu J, Deng H, Tang R, Hsu C, Kindler HL, Fuchs C, Gansert J, Bray S, Loh E, Zhu M. Exposure-response (E-R) analysis to facilitate phase III (P3) dose selection for AMG 479 (A479) in combination with gemcitabine (G) to treat metastatic pancreatic cancer (mPC). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.4_suppl.263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
263 Background: A479 is an investigational, fully human monoclonal antibody against IGF1R. In a phase II study, 125 pts with mPC were randomized 1:1:1 to A479, placebo (P), or conatumumab in combination with G. Addition of A479 (12 mg/kg IV, Q2W) to G (1000 mg/m2) showed evidence of improved OS and PFS (Kindler, JCO 2010:28 abstr 4035). An E-R analysis was done to inform P3 dose selection for A479. Methods: A population PK model of A479 was constructed using data from multiple studies. An E-R analysis was performed with pts from the A479+G and P+G arms (∼40 pts/arm). The effect of estimated steady-state area under the curve (AUCss) on OS and PFS was evaluated with a Cox proportional hazard model. Effects of potential confounding factors on OS- AUCss and PFS-AUCss associations were assessed by multivariate analysis. Exposure-safety data were analyzed with descriptive statistics and linear regression. P3 doses for A479 were explored with Monte Carlo simulations using population PK and parametric survival models. Results: There was a positive association between OS or PFS and higher AUCss in the A479+G arm (P<0.001, <0.001) that remained even when data from the A479+G and P+G arms were combined (P=0.033, 0.022). Pts with AUCss ≥ median (19.2 mg·h/μL) had longer median OS and PFS (16.0, 7.6 months) than pts with AUCss < median (4.7, 1.9 months). OS-AUCss and PFS-AUCss associations were significant after adjusting for potential confounding factors. Sensitivity E-R analyses were done to confirm the modeling results. The incidence of most adverse events was similar between the AUCss < and ≥ median groups, although the incidence of grade ≥3 hyperglycemia, neutropenia, and thrombocytopenia trended higher in pts with AUCss ≥ median. Population PK indicated 1.7-fold higher clearance of A479 in mPC than non-mPC pts. No G-A479 PK interactions were identified. PK simulations showed similar AUCss of A479 in mPC pts at 20 mg/kg and in non-mPC pts at 12 mg/kg. Simulations projected improved OS and PFS with 20 mg/kg vs 12 mg/kg A479. Conclusions: Increased exposure to A479 is associated with improved clinical outcomes in mPC. This supports the evaluation of 20 mg/kg A479 in P3. [Table: see text]
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Deng H, Zheng S, Yang X, Liu L, Feng Q. Transcription factors BmPOUM2 and BmβFTZ-F1 are involved in regulation of the expression of the wing cuticle protein gene BmWCP4 in the silkworm, Bombyx mori. INSECT MOLECULAR BIOLOGY 2011; 20:45-60. [PMID: 20825506 DOI: 10.1111/j.1365-2583.2010.01041.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In Bombyx mori, the wing cuticle protein gene BmWCP4 is expressed specifically in the epidermis at the onset and mid-stage of pupation and is responsible for the formation of the pupal cuticle during the larval-pupal metamorphosis. The gene consists of four exons and three introns and is present as a single copy in the genome. Its expression was up-regulated by 20-hydroxyecdysone (20E) and the 20E-induced expression was suppressed by juvenile hormone (JH) III. The upstream regulatory sequence region of the BmWCP4 gene was cloned and the regulatory elements responsible for 20E induction were identified. Two cis-regulatory elements (CREs) bound by the transcription factors BmPOUM2 and BmβFTZ-F1 were identified that mediated 20E-regulated expression of this gene. An electrophoretic mobility shift assay detected two nuclear proteins isolated from the epidermis and the BmN cell line that specifically bound to the POU and βFTZ-F1 CREs, respectively. BmPOUM2 recombinant protein explicitly bound to the POU CRE. Developmental and 20E-induced expression of the BmWCP4, BmPOUM2 and BmβFTZ-F1 genes showed that BmPOUM2 and BmβFTZ-F1 were initially expressed, followed by BmWCP4. These data suggest that the 20E-induced expression of BmWCP4 is mediated by the transcription factors BmPOUM2 and BmβFTZ-F1 binding to their CREs in the regulatory sequence region of the BmWCP4 gene.
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Yao M, Deng H, Mai F, Wang K, Zhang Q, Chen F, Fu Q. Modification of poly(lactic acid)/poly(propylene carbonate) blends through melt compounding with maleic anhydride. EXPRESS POLYM LETT 2011. [DOI: 10.3144/expresspolymlett.2011.92] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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173
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Liu C, Zhang N, Yu H, Chen Y, Liang Y, Deng H, Zhang Z. Proteomic analysis of human serum for finding pathogenic factors and potential biomarkers in preeclampsia. Placenta 2010; 32:168-74. [PMID: 21145106 DOI: 10.1016/j.placenta.2010.11.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Revised: 11/07/2010] [Accepted: 11/09/2010] [Indexed: 01/03/2023]
Abstract
OBJECTIVE(S) To apply a novel proteomic method to discover potential pathogenic factors and biomarkers of preeclampsia. STUDY DESIGN Sera from five patients complicated with preeclampsia and five healthy pregnant controls were separately pooled. Each pool was treated with peptide ligand library beads (PLLBs) to remove high abundance proteins by affinity and thus enrich low abundance proteins. The proteins from the eluate were analyzed by a combination of 1D Gel-LC-MS/MS. Protein expression levels were quantified using spectral counts and the extracted ion current. RESULTS 1172 unique proteins in preeclampsia and 1149 in healthy controls were identified in the present study. 51 proteins were differentially expressed between preeclampsia and healthy pregnant women including chorionic somatommammptropin hormone (CSH) and fibulin-1. 31 proteins identified were up-regulated and 20 were down-regulated. CONCLUSIONS The results demonstrate that peptide ligand library combining with 1D gel-LC-MS/MS analysis is an efficient method to identify differentially expressed proteins in sera and two biological processes of complement and coagulation activations and lipid metabolism were involved in the pathogenesis of preeclampsia.
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174
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Zhang M, Li S, Deng H, Zhou S. SU-GG-T-359: The Applications of MatriXX to Electron Beam Dosimetry. Med Phys 2010. [DOI: 10.1118/1.3468756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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175
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Zhou S, Li S, Chen S, Deng H, Zhang M, Schubert L, Du H, Wahl A, Enke C. SU-GG-J-98: Study of Patient Setup Error and Inter-Fractional Organ Motion for Prostatectomy Patients Using CT-on-Rails. Med Phys 2010. [DOI: 10.1118/1.3468322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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176
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Du H, Li S, Zhou S, Deng H, Zhang M, Chen S, Schubert L. SU-GG-T-354: Development and Evaluation of a Low Cost, EBT2 Film-Based Real-Time Dosimeter. Med Phys 2010. [DOI: 10.1118/1.3468751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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177
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Deng H, Li S. SU-GG-T-529: Fully Automated Patient Specific Collision Check for Novalis Radiosurgery System. Med Phys 2010. [DOI: 10.1118/1.3468926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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178
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Yu F, Deng H, Yao H, Liu Q, Su F, Song E. Mir-30 reduction maintains self-renewal and inhibits apoptosis in breast tumor-initiating cells. Oncogene 2010; 29:4194-204. [PMID: 20498642 DOI: 10.1038/onc.2010.167] [Citation(s) in RCA: 244] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Accumulating evidence indicates that a sub-population of cancer cells with stem-like properties, termed tumor-initiating cells (T-ICs), exist in many different kinds of malignancies, which have a pivotal role in tumorigenesis, tumor progression, metastasis and post-treatment relapse. However, how the stem-like properties of T-ICs are regulated remains obscure. Our previous study showed that reduction of let-7 microRNA (miRNA) in breast tumor-initiating cells (BT-ICs) contributes to the maintenance of their self-renewal capacity and undifferentiated status. In this study we show the effect of mir-30 reduction on the stem-like features of BT-ICs. Similar to let-7, mir-30 is reduced in BT-ICs, and the protein level of Ubc9 (ubiquitin-conjugating enzyme 9) and ITGB3 (integrin beta3), the target genes of mir-30, is markedly upregulated. Enforced constitutive expression of mir-30 in BT-ICs inhibits their self-renewal capacity by reducing Ubc9, and induces apoptosis through silencing ITGB3. On the contrary, blocking the miRNA with a specific antisense oligonucleotide (ASO) in differentiated breast cancer cells revived their self-renewal capacity. Furthermore, ectopic expression of mir-30 in BT-IC xenografts reduces tumorigenesis and lung metastasis in nonobese diabetic/severe combined immunodeficient mice, whereas blocking mir-30 expression enhances tumorigenesis and metastasis. Together, our data suggest mir-30 as one of the important miRNAs in regulating the stem-like features of T-ICs.
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179
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Tap WD, Demetri GD, Barnette P, Desai J, Kavan P, Tozer R, Friberg GR, Deng H, McCaffery I, Tolcher AW. AMG 479 in relapsed or refractory Ewing's family tumors (EFT) or desmoplastic small round cell tumors (DSRCT): Phase II results. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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180
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Xu Z, Jin C, Wang Z, Deng H, Shen D, Zhang M, Li M, Wang J, Zheng Z, Gong Y. A prospective, randomized, controlled, multicenter trial of Chinese herbs by stages combined with chemotherapy for advanced non-small cell lung cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e18000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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181
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Puzanov I, Sarantopoulos J, Gilbert J, Mahalingam D, Chap LI, Deng H, Zhu M, McCaffery I, Friberg GR, Rosen LS. Safety and pharmacokinetics (PK) of AMG 479 in combination with erlotinib (E) or sorafenib (S) in patients (pts) with advanced solid tumors. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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182
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Deng H, Bilotti E, Zhang R, Peijs T. Effective reinforcement of carbon nanotubes in polypropylene matrices. J Appl Polym Sci 2010. [DOI: 10.1002/app.30783] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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183
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Kawase-Koga Y, Low R, Otaegi G, Pollock A, Deng H, Eisenhaber F, Maurer-Stroh S, Sun T. RNAase-III enzyme Dicer maintains signaling pathways for differentiation and survival in mouse cortical neural stem cells. Development 2010. [DOI: 10.1242/dev.049767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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184
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Tang B, Deng H, Shui ZW, Zhang Q. Synthesis and optical properties of vertically aligned ZnO nanorods. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2010; 10:1842-1845. [PMID: 20355585 DOI: 10.1166/jnn.2010.2113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
ZnO nanorods were grown on an n-type silicon (111) substrate with the assistance of Au catalyst by chemical vapor deposition (CVD). The ZnO nanorods were about 200 nm diameter with uniform lengths of about 1.2 microm. The ZnO nanorods exhibited [0001] orientation. ZnO nanorods grow in dense arrays perpendicular to the (111)-plane of silicon due to [0001]ZnO perpendicular [111]Si, [2110]ZnO perpendicular [110]Si, [1210]ZnO perpendicular [101]Si and [1120]ZnO perpendicular [011]Si epitaxy. Room-temperature photoluminescence (PL) measurements show three near band-edge emission peak at 377, 379, 389 nm. These peaks are attributed to exciton transitions. Analysis indicates that the band gap of ZnO nanorods is 3.301 eV and exciton binding energy is 0.114 eV.
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Deng H, Doonan CJ, Furukawa H, Ferreira RB, Towne J, Knobler CB, Wang B, Yaghi OM. Multiple Functional Groups of Varying Ratios in Metal-Organic Frameworks. Science 2010; 327:846-50. [DOI: 10.1126/science.1181761] [Citation(s) in RCA: 1422] [Impact Index Per Article: 101.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Liu LM, Zhang JX, Wang XP, Guo HX, Deng H, Luo J. Pim-3 protects against hepatic failure in D-galactosamine (D-GalN)-sensitized rats. Eur J Clin Invest 2010; 40:127-38. [PMID: 20039932 DOI: 10.1111/j.1365-2362.2009.02235.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Fulminant hepatic failure (FHF) has a high mortality resulted from massive hepatic apoptosis and haemorrhage necrosis; it is required to develop a valid therapy directed towards hepatocyte protection and regeneration. Pim-3, a hepatic growth stimulator, belongs to the serine/threonine kinase Pim-family that has been implicated in gp130-mediated induction of cell proliferation, protection from apoptosis downstream of Signal transducer and activator of transcription 3 (STAT3) and vascular endothelial growth factor-A-dependent vasculogenesis and angiogenesis, thus is suggested to possibly play a role in the tissue repair of FHF. MATERIALS AND METHODS Male Wistar rats received simultaneous intraperitoneal injections of lipopolysaccharide (LPS) (100 microg kg(-1)) and D-galactosamine (D-GalN) (600 mg kg(-1)). One day prior to LPS/D-GalN administration, naked plasmid or Ringer's solution was injected via tail vein by hydrodynamics-based procedure. RESULTS Exogenous Pim-3 gene protected against LPS/D-GalN-induced lethality with survival rate of more than 80% and improved the hepatic pathomorphism. The fractions of hepatic apoptotic-positive cells and the levels of caspase-3 activity were markedly lower in Pim-3-pretreated rats. Furthermore, exogenous Pim-3 significantly inhibited expression of tumour necrosis factor-alpha and interleukin-1beta in the liver, declined p53 and inducible nitric oxide synthase mRNAs levels, but elevated levels of Bcl-2 protein, an anti-apoptosis member of Bcl-2 family, in the liver. Exogenous Pim-3, however, showed little effect on expression of Bax, a pro-apoptosis member of Bcl-2 family. CONCLUSIONS Pim-3 gene could protect rats from FHF by inhibiting liver apoptosis and improving inflammatory response of liver tissues, which could be associated with inhibiting expression of inflammatory mediators and promoting expression of anti-apoptosis protein Bcl-2.
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Deng H, Zhu SH, Le WD, Yang HR, Lv HW, Xu HB, Xie WJ, Jankovic J. Examination of the MSX1 gene in patients with Parkinson's disease. Acta Neurol Scand 2009; 120:442-4. [PMID: 19922584 DOI: 10.1111/j.1600-0404.2009.01271.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Several genetic variants in transcription factor genes have been reported to be associated with Parkinson's disease (PD). The muscle segment homeobox drosophila homolog of 1 gene (MSX1) is a major upstream regulator of the dopaminergic neuronal subtype specification. AIMS OF THE STUDY To determine whether genetic variation in the coding region of the MSX1 gene plays a role in the etiology of PD. METHODS We searched for genetic variations in the coding region of the MSX1 gene in 202 patients with PD and 200 normal controls by PCR-single-strand conformation polymorphism (PCR-SSCP) and sequencing. RESULTS No mutation in the MSX1 gene was identified in our cohort. CONCLUSIONS Mutations in the coding region of the MSX1 gene play little or no role in the development of PD.
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Le W, Xu P, Pan T, Deng H, Xie W, Jankovic J. FP41-TH-01 Nurr1 and Pitx3 are risk factors for Parkinson's disease. J Neurol Sci 2009. [DOI: 10.1016/s0022-510x(09)70484-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Deng H, Zhang R, Bilotti E, Loos J, Peijs T. Conductive polymer tape containing highly oriented carbon nanofillers. J Appl Polym Sci 2009. [DOI: 10.1002/app.29624] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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McCaffery I, Tolcher A, Puzanov I, Sarantopoulos J, Rosen L, Deng H, Paweletz K, Friberg G. Analysis of biomarkers during early phase clinical development of AMG 479, an investigational fully human monoclonal antibody antagonist of type 1 insulin-like growth factor receptor (IGF-1R). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.3545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3545 Background: AMG 479 showed anti-tumor activity in a phase 1 (P1) and phase 1b (P1b) trial (Tolcher, J Clin Oncol. 2007;25:3002; Sarantopoulos, J Clin Oncol. 2008;26:3583). We sought to identify predictive markers of response to AMG 479 in these trials by analyzing pharmacodynamic (PD) markers in serum, and expression and mutations of regulators of the IGF-1R pathway in tumors. Methods: Patients (pts) had advanced solid tumors and received AMG 479 (1–20 mg/kg Q2W) in the P1 trial or AMG 479 (6 or 12 mg/kg Q2W) + panitumumab (6 mg/kg Q2W) or gemcitabine (1,000 mg/m2 QW) in the P1b trial. Serum levels of IGF-1 and IGFBP-3 were measured pre dose on Day -1 and post dose at various time points. In the P1 trial, we examined relationships between tumor response (by RECIST) and: 1) levels of IGF-1 and IGFBP-3 (at baseline or PD change from baseline); 2) somatic mutations in key genes (including K-ras, and PTEN) of the IGF-1R pathway (in archival tumors); and 3) expression of PTEN (measured by immunohistochemistry in archival tumors). Results: Serum IGF-1 and IGFBP-3 increased in a concentration-dependent manner between 1 and 12 mg/kg AMG 479, with an apparent plateau between 12 and 20 mg/kg AMG 479. Baseline and PD changes in IGF-1 and IGFBP-3 were not substantially different in pts with a tumor response compared with those without a tumor response. A partial response to AMG 479 was observed in a pt with an activating K-ras mutation. No responses have been observed in tumors that lack expression of PTEN. Conclusions: The PD results suggest near complete biochemical coverage at 12-mg/kg AMG 479. Our hypothesis-generating analyses suggest that: 1) pre and postdose levels of IGF-1 and IGFBP-3 do not predict response to single-agent AMG 479; 2) activating K-ras mutations do not appear to preclude responsiveness to single-agent AMG 479 (in contrast to EGFR inhibitors); 3) expression and mutations of regulators of the PI3K/Akt pathway downstream of IGF-1R activation may be useful in predicting response to AMG 479. [Table: see text]
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Papp SB, Choi KS, Deng H, Lougovski P, van Enk SJ, Kimble HJ. Characterization of Multipartite Entanglement for One Photon Shared Among Four Optical Modes. Science 2009; 324:764-8. [DOI: 10.1126/science.1172260] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Aharmim B, Ahmed SN, Amsbaugh JF, Anthony AE, Banar J, Barros N, Beier EW, Bellerive A, Beltran B, Bergevin M, Biller SD, Boudjemline K, Boulay MG, Bowles TJ, Browne MC, Bullard TV, Burritt TH, Cai B, Chan YD, Chauhan D, Chen M, Cleveland BT, Cox-Mobrand GA, Currat CA, Dai X, Deng H, Detwiler J, DiMarco M, Doe PJ, Doucas G, Drouin PL, Duba CA, Duncan FA, Dunford M, Earle ED, Elliott SR, Evans HC, Ewan GT, Farine J, Fergani H, Fleurot F, Ford RJ, Formaggio JA, Fowler MM, Gagnon N, Germani JV, Goldschmidt A, Goon JTM, Graham K, Guillian E, Habib S, Hahn RL, Hallin AL, Hallman ED, Hamian AA, Harper GC, Harvey PJ, Hazama R, Heeger KM, Heintzelman WJ, Heise J, Helmer RL, Henning R, Hime A, Howard C, Howe MA, Huang M, Jagam P, Jamieson B, Jelley NA, Keeter KJ, Klein JR, Kormos LL, Kos M, Krüger A, Kraus C, Krauss CB, Kutter T, Kyba CCM, Lange R, Law J, Lawson IT, Lesko KT, Leslie JR, Loach JC, MacLellan R, Majerus S, Mak HB, Maneira J, Martin R, McBryde K, McCauley N, McDonald AB, McGee S, Mifflin C, Miller GG, Miller ML, Monreal B, Monroe J, Morissette B, Myers A, Nickel BG, Noble AJ, Oblath NS, O'Keeffe HM, Ollerhead RW, Gann GDO, Oser SM, Ott RA, Peeters SJM, Poon AWP, Prior G, Reitzner SD, Rielage K, Robertson BC, Robertson RGH, Rollin E, Schwendener MH, Secrest JA, Seibert SR, Simard O, Simpson JJ, Sinclair L, Skensved P, Smith MWE, Steiger TD, Stonehill LC, Tesić G, Thornewell PM, Tolich N, Tsui T, Tunnell CD, Van Wechel T, Van Berg R, VanDevender BA, Virtue CJ, Walker TJ, Wall BL, Waller D, Tseung HWC, Wendland J, West N, Wilhelmy JB, Wilkerson JF, Wilson JR, Wouters JM, Wright A, Yeh M, Zhang F, Zuber K. Independent measurement of the total active 8B solar neutrino flux using an array of 3He proportional counters at the Sudbury Neutrino Observatory. PHYSICAL REVIEW LETTERS 2008; 101:111301. [PMID: 18851271 DOI: 10.1103/physrevlett.101.111301] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2008] [Indexed: 05/26/2023]
Abstract
The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (nu_x) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54_-0.31;+0.33(stat)-0.34+0.36(syst)x10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Deltam2=7.59_-0.21;+0.19x10(-5) eV2 and theta=34.4_-1.2;+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO's previous results.
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Jiang W, Bai Z, Zhang D, Shi Y, Yong J, Chen S, Ding M, Deng H. Differentiation of mouse nuclear transfer embryonic stem cells into functional pancreatic beta cells. Diabetologia 2008; 51:1671-9. [PMID: 18581093 DOI: 10.1007/s00125-008-1065-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2008] [Accepted: 04/18/2008] [Indexed: 10/21/2022]
Abstract
AIMS/HYPOTHESIS Therapeutic cloning has been reported to have potential in the treatment of several degenerative diseases. However, it has yet to be determined whether mouse nuclear transfer-embryonic stem cells (NT-ESCs) can be differentiated into pancreatic beta cells and used to reverse diabetes in an animal model. METHODS We first used the somatic nuclear transfer technique to generate mouse NT-ESCs and then developed a chemically defined stepwise protocol to direct the NT-ESCs into functional pancreatic beta cells. We examined the gene expression pattern of the differentiated NT-ESCs and transplanted the NT-ESC-derived insulin-producing cells into recipient diabetic mice. RESULTS Four mouse NT-ESC lines were first established using an improved nuclear transfer technique and insulin-producing cells were efficiently generated from NT-ESCs by mimicking pancreatic in vivo development. Most of the insulin-producing cells that we generated co-produced pancreatic and duodenal homeobox 1, but not glucagon at the final stage of this differentiation method, which differed from the insulin and glucagon co-production reported by other groups. The differentiated NT-ESCs were able to release insulin in response to glucose stimuli and normalise the blood glucose level of diabetic mice for at least 2 months. CONCLUSIONS/INTERPRETATION These results demonstrate the potential of therapeutic cloning for cell therapy of type 1 diabetes in a mouse model.
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Deng H, Yang X, Jin T, Wu J, Hu LS, Chang M, Sun XJ, Adem A, Winblad B, Zhu J. The role of IL-12 and TNF-α in AIDP and AMAN. Eur J Neurol 2008; 15:1100-5. [DOI: 10.1111/j.1468-1331.2008.02261.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yan D, Wang L, Ma FL, Deng H, Liu J, Li C, Wang H, Chen J, Tang JL, Ruan DY. Developmental exposure to lead causes inherent changes on voltage-gated sodium channels in rat hippocampal CA1 neurons. Neuroscience 2008; 153:436-45. [DOI: 10.1016/j.neuroscience.2008.02.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2007] [Revised: 01/20/2008] [Accepted: 02/14/2008] [Indexed: 12/29/2022]
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Bennett GW, Bousquet B, Brown HN, Bunce G, Carey RM, Cushman P, Danby GT, Debevec PT, Deile M, Deng H, Deninger W, Dhawan SK, Druzhinin VP, Duong L, Efstathiadis E, Farley FJM, Fedotovich GV, Giron S, Gray FE, Grigoriev D, Grosse-Perdekamp M, Grossmann A, Hare MF, Hertzog DW, Huang X, Hughes VW, Iwasaki M, Jungmann K, Kawall D, Kawamura M, Khazin BI, Kindem J, Krienen F, Kronkvist I, Lam A, Larsen R, Lee YY, Logashenko I, McNabb R, Meng W, Mi J, Miller JP, Mizumachi Y, Morse WM, Nikas D, Onderwater CJG, Orlov Y, Ozben CS, Paley JM, Peng Q, Polly CC, Pretz J, Prigl R, zu Putlitz G, Qian T, Redin SI, Rind O, Roberts BL, Ryskulov N, Sedykh S, Semertzidis YK, Shagin P, Shatunov YM, Sichtermann EP, Solodov E, Sossong M, Steinmetz A, Sulak LR, Timmermans C, Trofimov A, Urner D, von Walter P, Warburton D, Winn D, Yamamoto A, Zimmerman D. Search for Lorentz and CPT violation effects in Muon spin precession. PHYSICAL REVIEW LETTERS 2008; 100:091602. [PMID: 18352695 DOI: 10.1103/physrevlett.100.091602] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2007] [Indexed: 05/26/2023]
Abstract
The spin precession frequency of muons stored in the (g-2) storage ring has been analyzed for evidence of Lorentz and CPT violation. Two Lorentz and CPT violation signatures were searched for a nonzero delta omega a(=omega a mu+ - omega a mu-) and a sidereal variation of omega a mu+/-). No significant effect is found, and the following limits on the standard-model extension parameters are obtained: bZ = -(1.0+/-1.1) x 10(-23) GeV; (m mu dZ0 + HXY)=(1.8+/-6.0) x 10(-23) GeV; and the 95% confidence level limits b perpendicular mu+ <1.4 x 10(-24) GeV and b perpendicular mu- <2.6 x 10(-24) GeV.
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Choi KS, Deng H, Laurat J, Kimble HJ. Mapping photonic entanglement into and out of a quantum memory. Nature 2008; 452:67-71. [DOI: 10.1038/nature06670] [Citation(s) in RCA: 433] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2007] [Accepted: 01/03/2008] [Indexed: 11/09/2022]
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Tang CF, Deng H, Tang B, Cheng H, Wang JC, Chen JJ. Non-linear optical properties of zinc oxide nanowires. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 2008; 8:1150-1154. [PMID: 18468114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
High quality zinc oxide (ZnO) nanowires were grown on n-type Si (100) using vapor-liquid-solid process. We obtained the photoluminescence spectra of ZnO nanowires based on nonlinear optical process using an ultrashort wavelength femtosecond laser as a pumping source. The spectra shows the second harmonic generation phenomenon, as well as the exciton-exciton collision peak at 388 nm and the green emission peak at 515 nm caused by oxygen vacancy. A laser emission peak near 392 nm was observed when pump intensity surpassed 52 mJ/cm2 and a sharp peak about 0.5 nm wide emerged when the energy intensity reached 700 mJ/cm2. We attribute this excitation process to a two-photon absorption process enhanced by Rabi oscillation.
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Qing T, Liu H, Wei W, Ye X, Shen W, Zhang D, Song Z, Yang W, Ding M, Deng H. Mature oocytes derived from purified mouse fetal germ cells. Hum Reprod 2007; 23:54-61. [DOI: 10.1093/humrep/dem334] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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200
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Laurat J, Choi KS, Deng H, Chou CW, Kimble HJ. Heralded entanglement between atomic ensembles: preparation, decoherence, and scaling. PHYSICAL REVIEW LETTERS 2007; 99:180504. [PMID: 17995390 DOI: 10.1103/physrevlett.99.180504] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2007] [Indexed: 05/25/2023]
Abstract
Heralded entanglement between collective excitations in two atomic ensembles is probabilistically generated, stored, and converted to single-photon fields. By way of the concurrence, quantitative characterizations are reported for the scaling behavior of entanglement with excitation probability and for the temporal dynamics of various correlations resulting in the decay of entanglement. A lower bound of the concurrence for the collective atomic state of 0.9+/-0.3 is inferred. The decay of entanglement as a function of storage time is also observed, and related to the local dynamics.
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