2351
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Macphee AG, Divol L, Kemp AJ, Akli KU, Beg FN, Chen CD, Chen H, Hey DS, Fedosejevs RJ, Freeman RR, Henesian M, Key MH, Le Pape S, Link A, Ma T, Mackinnon AJ, Ovchinnikov VM, Patel PK, Phillips TW, Stephens RB, Tabak M, Town R, Tsui YY, Van Woerkom LD, Wei MS, Wilks SC. Limitation on prepulse level for cone-guided fast-ignition inertial confinement fusion. PHYSICAL REVIEW LETTERS 2010; 104:055002. [PMID: 20366771 DOI: 10.1103/physrevlett.104.055002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2009] [Indexed: 05/29/2023]
Abstract
The viability of fast-ignition (FI) inertial confinement fusion hinges on the efficient transfer of laser energy to the compressed fuel via multi-MeV electrons. Preformed plasma due to the laser prepulse strongly influences ultraintense laser plasma interactions and hot electron generation in the hollow cone of an FI target. We induced a prepulse and consequent preplasma in copper cone targets and measured the energy deposition zone of the main pulse by imaging the emitted K_{alpha} radiation. Simulation of the radiation hydrodynamics of the preplasma and particle in cell modeling of the main pulse interaction agree well with the measured deposition zones and provide an insight into the energy deposition mechanism and electron distribution. It was demonstrated that a under these conditions a 100 mJ prepulse eliminates the forward going component of approximately 2-4 MeV electrons.
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2352
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Youngwirth L, Benavidez J, Sippel R, Chen H. Parathyroid Hormone Deficiency after Total Thyroidectomy: Incidence and Time to Resolution. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2353
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Alexander V, Roy M, Steffens K, Kunnimalaiyaan M, Chen H. Azacytidine Induces Growth Arrest and Suppresses Neuroendocrine Markers in Carcinoids. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2354
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Tao Y, Chen H, Tian NN, Huo DT, Li G, Zhang YH, Liu Y, Fang FG, Ding JP, Zhang XR. Effects of l-Ascorbic Acid, α-Tocopherol and Co-culture onIn VitroDevelopmental Potential of Porcine Cumulus Cells Free Oocytes. Reprod Domest Anim 2010; 45:19-25. [DOI: 10.1111/j.1439-0531.2008.01129.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2355
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Davis R, Pinchot S, Jarjour S, Kunnimalaiyaan M, Chen H. Resveratrol-Induced Notch Activation Potentially Mediates Autophagy in Human Follicular Thyroid Cancer Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.440] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2356
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Chen Y, Forsyth E, Pan K, Chen H, Szema A, Szema K, Chenrachasit P. Atmospheric Temperature & Pollen Counts Impact New York City Asthma ER Visits. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2357
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Roy M, Jaskula-Sztul R, Pinchot S, Pisarnturakit P, Kunnimalaiyaan M, Chen H. Histone Deacetylase Inhibitors Transcriptionally Regulate Notch1 Expression in Neuroendocrine Malignancies. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2358
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Jagasia M, Pickard S, Chen H, Dixon S, Savani B. Cyclophosphamide Or Plerixafor And G-CSF Stem Cell Mobilization (SCM): Initial Cost Comparison Analysis. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2359
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Zarebczan B, Chen H. Multi-targeted approach in the treatment of thyroid cancer. MINERVA CHIR 2010; 65:59-69. [PMID: 20212418 PMCID: PMC2901507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Thyroid cancer is the most common malignancy of the endocrine system. There are several variants, ranging from well-differentiated cancers, such as papillary carcinomas, to poorly differentiated types, which carry a worse prognosis. Many patients with well-differentiated thyroid cancers are cured by surgical intervention alone, while others require adjuvant therapy. For those patients with more aggressive tumors, such as metastatic and anaplastic thyroid cancers, surgery rarely offers a definitive cure and alternative treatment methods such as chemotherapy do not improve survival. Due to the difficulty in treating aggressive thyroid cancers, other novel therapies are needed. In this paper, we will review current strategies for managing the various types of thyroid carcinomas. We will also address many of the studied genetic pathways and new therapeutic drug targets for treating individual thyroid malignancies.
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2360
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Cook M, Luo J, Pinchot S, Kunnimalaiyaan M, Chen H. Notch1 Is a Downstream Effector of Raf-1 Signaling in Gastrointestinal Carcinoid Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2361
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Pinchot S, Davis R, Kunnimalaiyaan M, Chen H. The Synergistic Effects of the Somatostatin Analog Pasireotide (SOM230) and Raf-1 Pathway Activation in Human Carcinoid Cancer Cells. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2362
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Griffith M, Misfeldt A, Chen H, Jagasia M, Kassim A, Savani B, Survant M, Jagasia S. Factors Predicting New-Onset Diabetes Mellitus And Metabolic Syndrome After Allogeneic Stem Cell Transplantation: Implication For Early Preventive Intervention. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.028] [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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2363
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Adler J, Chen H. Is Endocrine Surgery Research Dying? J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2364
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Chan CS, Chen H, Bradley A, Dragatsis I, Rosenmund C, Davis RL. α8-integrins are required for hippocampal long-term potentiation but not for hippocampal-dependent learning. GENES BRAIN AND BEHAVIOR 2010; 9:402-10. [PMID: 20132319 DOI: 10.1111/j.1601-183x.2010.00569.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Integrins are heterodimeric transmembrane cell adhesion receptors that are essential for a wide range of biological functions via cell-matrix and cell-cell interactions. Recent studies have provided evidence that some of the subunits in the integrin family are involved in synaptic and behavioral plasticity. To further understand the role of integrins in the mammalian central nervous system, we generated a postnatal forebrain and excitatory neuron-specific knockout of alpha8-integrin in the mouse. Behavioral studies showed that the mutant mice are normal in multiple hippocampal-dependent learning tasks, including a T-maze, non-match-to-place working memory task for which other integrin subunits like alpha3- and beta1-integrin are required. In contrast, mice mutant for alpha8-integrin exhibited a specific impairment of long-term potentiation (LTP) at Schaffer collateral-CA1 synapses, whereas basal synaptic transmission, paired-pulse facilitation and long-term depression (LTD) remained unaffected. Because LTP is also impaired in the absence of alpha3-integrin, our results indicate that multiple integrin molecules are required for the normal expression of LTP, and different integrins display distinct roles in behavioral and neurophysiological processes like synaptic plasticity.
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2365
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Chen Y, Liu K, Xu L, Chen H, Liu D, Zhang X, Shi H, Han W, Wang Y, Zhao T, Wang J, Wang J, Huang X. HLA-mismatched hematopoietic SCT without in vitro T-cell depletion for myelodysplastic syndrome. Bone Marrow Transplant 2010; 45:1333-9. [PMID: 20062100 DOI: 10.1038/bmt.2009.351] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Allogeneic hematopoietic SCT (HSCT) is currently the only curative treatment for myelodysplastic syndrome (MDS). However, many patients cannot find an HLA-matched donor. We have developed a new protocol for HLA-mismatched (including haploidentical) HSCT using G-CSF-primed BM plus G-CSF-mobilized PBSCs without in vitro T-cell depletion. A total of 36 patients diagnosed with high-risk MDS (RAEB (refractory anemia with excess blasts) or RAEBt (RAEB in transformation)) underwent transplantation from HLA-mismatched family donors. All patients achieved sustained myeloid engraftment. The cumulative incidence of grades II-IV acute GVHD (aGVHD) was 60% and that of grades III and IV aGVHD was 15%. The 2-year cumulative incidence of chronic GVHD was 56%. After a median follow-up of 17 months, 4 patients had relapsed and died and 25 patients were still alive. The 2-year probability of leukemia-free survival (LFS) was 65%. Patients transplanted within 7 months of diagnosis had better LFS (89 vs 43% ). Severe aGVHD decreased the LFS significantly by increasing non-relapse mortality (NRM). This study confirms that HLA-mismatched HSCT is a treatment option for MDS. Patients with high-risk MDS benefit from receiving HSCT early in the course of the disease.
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2366
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Liu S, Sun Y, Chen H, Song S, Xu Y. Magnetic screening of the potential targeted protein of salvianolic acid B using T7 phage display library. Appl Biochem Biotechnol 2010; 162:1206-13. [PMID: 20049555 DOI: 10.1007/s12010-009-8888-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2009] [Accepted: 12/08/2009] [Indexed: 10/20/2022]
Abstract
Salvianolic acid B is one of the effective components from the Chinese traditional drug Salvia miltiorrhiza (Danshen), which is widely used as a usual clinic drug for atherosclerosis-related disorder patients in China. But the targeting protein of salvianolic acid B is still not known. The possible targeting proteins of salvianolic acid B were explored by high throughput screening in this paper. Attached to the magnetic nanoparticles, salvianolic acid B was used for screening the high-affinity protein from the displaying cDNA peptide library phage. After biopanning, the selected protein or peptide sequences were used to explore the whole proteins containing the selected sequences in the National Center for Biotechnology Information website using blast. One of the selected phages was carried out by affinity analysis with salvianolic acid B using capillary electrophoresis (CE). The CE results indicated that the protein or peptide on the surface of the selected phages could bind the drug salvianolic acid B. The results are helpful to preliminarily explain the pharmacology of salvianolic acid B.
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2367
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Chen H, Gharb B, Salgad C. Elective Amputation of the Toes in Severe Lymphedema of the Lower Leg: Rationale and Indications. J Vasc Surg 2010. [DOI: 10.1016/j.jvs.2009.11.066] [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]
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2368
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Chen H, Chen Z, Wu M, Deng S. Screening the Fusarium graminearum inhibitory mutant strain from Bacillus subtilis by atmospheric-pressure plasma jet. J Appl Microbiol 2010; 108:96-103. [DOI: 10.1111/j.1365-2672.2009.04397.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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2369
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Yin Z, Ouyang H, Chen H. Simulating Soil Freezing and Thawing of Temperate Desert Ecosystem on the Qinghai-Tibet Plateau. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proenv.2010.10.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2370
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Yin G, Liang YY, Jiang F, Chen H, Wang P, Note R, Mizuseki H, Kawazoe Y. Polarization-induced switching effect in graphene nanoribbon edge-defect junction. J Chem Phys 2009; 131:234706. [DOI: 10.1063/1.3273312] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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2371
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Zhou X, Hayashi T, Chen H, Hara T, Yokoyama R, Kanematsu M, Hoshi H, Fujita H. Automated measurement of bone-mineral-density (BMD) values of vertebral bones based on X-ray torso CT images. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2009; 2009:3573-6. [PMID: 19964613 DOI: 10.1109/iembs.2009.5334143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Bone is one of the most important anatomical structures in humans and osteoporosis is one of the major public health concerns in the world. Osteoporosis is a main target disease of bone, which can be detected by medical image techniques. The purpose of this study is to develop a fully automated computer scheme to measure bone-mineral-density (BMD) values for vertebral trabecular bones. This scheme will aid osteoporosis diagnosis performed using computer tomography (CT) images. This scheme includes the following processing steps: segmentation of the bone region, recognition of the skeletal structures and measurement of the BMD value in vertebral trabecular bone of each vertebral body. The proposed scheme was applied to 20 X-ray torso CT cases to measure the BMD values for vertebral trabecular bones. The experimental results show that the mean and standard deviation of the difference between the BMD values measured by using the proposed method and those measured using a manual segmentation method were 6.93 mg/cm(3) and 6.82 mg/cm(3) respectively. The accuracy of the proposed scheme satisfied the requirement for a computer-aided system used in osteoporosis diagnosis.
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2372
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Lei CZ, Su R, Bower MA, Edwards CJ, Wang XB, Weining S, Liu L, Xie WM, Li F, Liu RY, Zhang YS, Zhang CM, Chen H. Multiple maternal origins of native modern and ancient horse populations in China. Anim Genet 2009; 40:933-44. [PMID: 19744143 DOI: 10.1111/j.1365-2052.2009.01950.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2373
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Banki F, Luketich JD, Chen H, Christie N, Pennathur A. Stereotactic radiosurgery for lung cancer. MINERVA CHIR 2009; 64:589-598. [PMID: 20029356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Lung cancer is the most common cause of cancer death in both men and women in the United States. Anatomic lobectomy is the standard treatment and offers the best results for curative treatment of early stage non-small cell lung cancer (NSCLC). With an aging population, a significant proportion of patients are not surgical candidates at the time of diagnosis. In medically inoperable patients, standard external beam radiation has been offered as treatment, with suboptimal results. Stereotactic radiosurgery (SRS), a term coined by Leksell describes an approach using multiple convergent beams, precise localization with a stereotactic coordinate system, and rigid immobilization. It provides precise delivery of beams from multiple collimated paths which maximizes radiation delivery to the tumor, and minimizes the exposure of normal tissue. Early results with SRS are very encouraging, and prospective trials are underway in our institution and others to evaluate its role in early stage NSCLC. In article we review the role of stereotactic radiosurgery for the treatment of lung cancer.
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2374
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Cui Y, Devillier P, Kuang X, Wang H, Zhu L, Xu Z, Xia Z, Zemoura L, Advenier C, Chen H. Tiotropium reduction of lung inflammation in a model of chronic gastro-oesophageal reflux. Eur Respir J 2009; 35:1370-6. [DOI: 10.1183/09031936.00139909] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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2375
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Gasparovic C, Neeb H, Feis DL, Damaraju E, Chen H, Doty MJ, South DM, Mullins PG, Bockholt HJ, Shah NJ. Quantitative spectroscopic imaging with in situ measurements of tissue water T1, T2, and density. Magn Reson Med 2009; 62:583-90. [PMID: 19526491 DOI: 10.1002/mrm.22060] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The use of tissue water as a concentration standard in proton magnetic resonance spectroscopy ((1)H-MRS) of the brain requires that the water proton signal be adjusted for relaxation and partial volume effects. While single voxel (1)H-MRS studies have often included measurements of water proton T(1), T(2), and density based on additional (1)H-MRS acquisitions (e.g., at multiple echo or repetition times), this approach is not practical for (1)H-MRS imaging ((1)H-MRSI). In this report we demonstrate a method for using in situ measurements of water T(1), T(2), and density to calculate metabolite concentrations from (1)H-MRSI data. The relaxation and density data are coregistered with the (1)H-MRSI data and provide detailed information on the water signal appropriate to the individual subject and tissue region. We present data from both healthy subjects and a subject with brain lesions, underscoring the importance of water parameter measurements on a subject-by-subject and voxel-by-voxel basis.
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