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Kuo J, Su K, Hu L, Pereira G, Herrmann K, Muzic R, Traughber M, Traughber B. WE-AB-204-04: Feature Selection and Clustering Optimization for Pseudo-CT Generation in MR-Based Attenuation Correction and Radiation Therapy Planning. Med Phys 2015. [DOI: 10.1118/1.4925880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Liang X, Hu L, Yin F, Cai J. WE-AB-BRA-03: Displacement Vector Field (DVF) Error Correction Using Sparsely Distributed Ground-Truth Displacement Vectors. Med Phys 2015. [DOI: 10.1118/1.4925856] [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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228
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Ren Q, Cao R, Pei X, Wang H, Hu L. SU-C-BRD-07: Three-Dimensional Dose Reconstruction in the Presence of Inhomogeneities Using Fast EPID-Based Back-Projection Method. Med Phys 2015. [DOI: 10.1118/1.4923803] [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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229
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Hu L, Cui T, Miller W, Yin F, Cai J. WE-AB-BRA-11: Development of Physiological-Based Virtual Thorax Phantoms for Evaluation of Deformable Image Registration. Med Phys 2015. [DOI: 10.1118/1.4925864] [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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Jia J, Cao R, Pei X, Wang H, Hu L. SU-E-J-191: Motion Prediction Using Extreme Learning Machine in Image Guided Radiotherapy. Med Phys 2015. [DOI: 10.1118/1.4924277] [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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Cui T, Hu L, Miller W, Yin F, Cai J. TH-CD-204-09: Physiological Modeling of Lung Motion Based On Hyperpolarized Gas Tagging MRI. Med Phys 2015. [DOI: 10.1118/1.4926256] [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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232
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Su K, Kuo J, Hu L, Pereira G, Herrmann K, Muzic R, Traughber M, Traughber B. WE-AB-204-06: Pseudo-CT Generation Using Undersampled, Single-Acquisition UTE-MDixon and Direct-Mapping Artificial Neural Networks for MR-Based Attenuation Correction and Radiation Therapy Planning. Med Phys 2015. [DOI: 10.1118/1.4925882] [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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233
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Zeng LC, Du Y, Yang HF, Xie MG, Liao HQ, Zhang YD, Li L, Wang Q, Hu L, Xu XX. Efficacy of an opposite position aspiration on resolution of pneumothorax following CT-guided lung biopsy. Br J Radiol 2015; 88:20150227. [PMID: 25966292 DOI: 10.1259/bjr.20150227] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To evaluate the efficacy of aspiration in an opposite position to deal with pneumothorax after CT-guided lung biopsy. METHODS A retrospective study was developed involving 210 patients with pneumothorax who had undergone CT-guided percutaneous core biopsies from January 2012 to March 2014 for various pulmonary lesions. Asymptomatic patients with minimal pneumothorax were treated conservatively. Simple manual aspiration was performed for symptomatic patients with minimal pneumothorax and for all patients with moderate to large pneumothorax. An opposite position aspiration was performed when simple manual aspiration failed. The efficacy of simple manual aspiration and the opposite position aspiration was observed. RESULTS Among 210 patients with pneumothorax, 128 (61.0%) asymptomatic patients with minimal pneumothorax were treated conservatively. The remaining 82 were treated with attempted simple manual aspiration. Out of these 82 patients, simple manual aspiration was successful in 58 (70.7%, 58/82) cases. The complete and partial regression rates were 17.2% (10/58) and 82.8% (48/58), respectively. In the other 24 patients (29.3%, 24/82), simple aspiration technique was ineffective. An opposite position (from prone to supine or vice versa) was applied, and a new biopsy puncture site was chosen for reaspiration. This procedure was successful in 22 patients but not in 2 patients who had to have a chest tube insertion. The complete and partial regression rates were 25.0% (6/24) and 66.7% (16/24), respectively. Applying the new method, the total effective rate of aspiration improved significantly from 70.7% (58/82) to 97.6% (80/82). CONCLUSION The opposite position aspiration can be safe, effective and minimally invasive treatment for CT-guided lung biopsy-induced pneumothorax thus reducing the use of chest tube significantly. ADVANCES IN KNOWLEDGE (1) Opposite position aspiration can elevate the success rate of aspiration significantly (from 70.7% to 97.6% in our study); (2) this procedure is a safe, effective and minimally invasive treatment for pneumothorax caused by biopsy; and (3) opposite position aspiration is a useful technique to reduce the use of chest tube, which has clinical significance.
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Chua CY, Liu Y, Granberg KJ, Hu L, Haapasalo H, Annala MJ, Cogdell DE, Verploegen M, Moore LM, Fuller GN, Nykter M, Cavenee WK, Zhang W. IGFBP2 potentiates nuclear EGFR-STAT3 signaling. Oncogene 2015; 35:738-47. [PMID: 25893308 PMCID: PMC4615268 DOI: 10.1038/onc.2015.131] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 02/04/2023]
Abstract
Insulin-like growth factor binding protein 2 (IGFBP2) is a pleiotropic oncogenic protein that has both extracellular and intracellular functions. Despite a clear causal role in cancer development, the tumor-promoting mechanisms of IGFBP2 are poorly understood. The contributions of intracellular IGFBP2 to tumor development and progression are also unclear. Here we present evidence that both exogenous IGFBP2 treatment and cellular IGFBP2 overexpression lead to aberrant activation of EGFR, which subsequently activates STAT3 signaling. Furthermore, we demonstrate that IGFBP2 augments the nuclear accumulation of EGFR to potentiate STAT3 transactivation activities, via activation of the nuclear EGFR signaling pathway. Nuclear IGFBP2 directly influences the invasive and migratory capacities of human glioblastoma cells, providing a direct link between intracellular (and particularly nuclear) IGFBP2 and cancer hallmarks. These activities are also consistent with the strong association between IGFBP2 and STAT3-activated genes derived from the TCGA database for human glioma. A high level of all 3 proteins (IGFBP2, EGFR and STAT3) was strongly correlated with poorer survival in an independent patient dataset. These results identify a novel tumor-promoting function for IGFBP2 of activating EGFR/STAT3 signaling and facilitating EGFR accumulation in the nucleus, thereby deregulating EGFR signaling by 2 distinct mechanisms. As targeting EGFR in glioma has been relatively unsuccessful, this study suggests that IGFBP2 may be a novel therapeutic target.
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Fuh K, Secord A, Bevis K, Huh W, Blansit K, Rosenfeld E, Hu L, Previs R, Gardner A, Kapp D, Chan J. Disease stabilization versus response after bevacizumab treatment in recurrent ovarian cancer: How do we determine clinical efficacy? Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.01.130] [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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Hu L, Zhang ZG, Mouraux A, Iannetti GD. Multiple linear regression to estimate time-frequency electrophysiological responses in single trials. Neuroimage 2015; 111:442-53. [PMID: 25665966 PMCID: PMC4401443 DOI: 10.1016/j.neuroimage.2015.01.062] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 12/07/2014] [Accepted: 01/31/2015] [Indexed: 01/05/2023] Open
Abstract
Transient sensory, motor or cognitive event elicit not only phase-locked event-related potentials (ERPs) in the ongoing electroencephalogram (EEG), but also induce non-phase-locked modulations of ongoing EEG oscillations. These modulations can be detected when single-trial waveforms are analysed in the time-frequency domain, and consist in stimulus-induced decreases (event-related desynchronization, ERD) or increases (event-related synchronization, ERS) of synchrony in the activity of the underlying neuronal populations. ERD and ERS reflect changes in the parameters that control oscillations in neuronal networks and, depending on the frequency at which they occur, represent neuronal mechanisms involved in cortical activation, inhibition and binding. ERD and ERS are commonly estimated by averaging the time-frequency decomposition of single trials. However, their trial-to-trial variability that can reflect physiologically-important information is lost by across-trial averaging. Here, we aim to (1) develop novel approaches to explore single-trial parameters (including latency, frequency and magnitude) of ERP/ERD/ERS; (2) disclose the relationship between estimated single-trial parameters and other experimental factors (e.g., perceived intensity). We found that (1) stimulus-elicited ERP/ERD/ERS can be correctly separated using principal component analysis (PCA) decomposition with Varimax rotation on the single-trial time-frequency distributions; (2) time-frequency multiple linear regression with dispersion term (TF-MLRd) enhances the signal-to-noise ratio of ERP/ERD/ERS in single trials, and provides an unbiased estimation of their latency, frequency, and magnitude at single-trial level; (3) these estimates can be meaningfully correlated with each other and with other experimental factors at single-trial level (e.g., perceived stimulus intensity and ERP magnitude). The methods described in this article allow exploring fully non-phase-locked stimulus-induced cortical oscillations, obtaining single-trial estimate of response latency, frequency, and magnitude. This permits within-subject statistical comparisons, correlation with pre-stimulus features, and integration of simultaneously-recorded EEG and fMRI. ERP/ERD/ERS are reliably isolated using PCA + Varimax rotation on single-trial TFDs. TF-MLRd enhances the SNR of ERP/ERD/ERS in single trials. TF-MLRd provides an unbiased estimation of single-trial parameters of ERP/ERD/ERS. Availability of single-trial estimates permits within-subject statistical comparison.
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Hu L, Li L, Yang S, Wei B. Thermophysical properties and eutectic growth of electrostatically levitated and substantially undercooled liquid Zr91.2Si8.8 alloy. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.12.058] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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238
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Hu L, Li YG, Zhang CG, Zeng Z. Cluster dynamics simulation of deuterium retention behaviors in irradiated beryllium. RSC Adv 2015. [DOI: 10.1039/c5ra08948d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The long-term dynamics evolution behaviors of deuterium in beryllium under different irradiation conditions are investigated using the cluster dynamics model.
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Liang A, Li W, Luo X, Gu J, Liu Y, Hu L. Strong optical coupling between neighboring cones on human retina. J Vis 2014. [DOI: 10.1167/14.15.54] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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240
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Bai Z, Xie H, You Q, Pickerill S, Zhang Y, Li T, Geng J, Hu L, Shan H, Di B. Isothermal cross-priming amplification implementation study. Lett Appl Microbiol 2014; 60:205-9. [DOI: 10.1111/lam.12342] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 10/16/2014] [Accepted: 10/17/2014] [Indexed: 11/28/2022]
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Montzka SA, McFarland M, Andersen SO, Miller BR, Fahey DW, Hall BD, Hu L, Siso C, Elkins JW. Recent Trends in Global Emissions of Hydrochlorofluorocarbons and Hydrofluorocarbons: Reflecting on the 2007 Adjustments to the Montreal Protocol. J Phys Chem A 2014; 119:4439-49. [DOI: 10.1021/jp5097376] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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242
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Li M, Wang A, Hu L, Song Z, Zhao Y, Sun Y, Yan L, Li X. Effects of estradiol-drospirenone on menopausal symptoms, lipids and bone turnover in Chinese women. Climacteric 2014; 18:214-8. [PMID: 25362969 DOI: 10.3109/13697137.2014.978753] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To investigate the effects of a hormone replacement preparation containing 1 mg estradiol plus 2 mg drospirenone on menopausal symptoms, blood lipids, and bone turnover markers in postmenopausal women. METHODS A prospective, self-controlled trial was conducted in 64 Chinese postmenopausal women aged 45-60 (mean 52.5 ± 3.37) years who were treated with estradiol-drospirenone for at least 6 months. The Kupperman index, blood lipid concentrations, bone mineral density, and bone turnover markers were measured before (baseline) and at 1, 3, and 6 months after treatment. RESULTS In comparison with baseline, the Kupperman index score was significantly improved at 1, 3, and 6 months after estradiol-drospirenone treatment (20.57 ± 6.52 vs. 16.37 ± 5.19, 13.34 ± 4.52, and 12.70 ± 4.42, respectively; all p < 0.01). After 6 months of treatment, concentrations of low density lipoprotein cholesterol, triglycerides, and total cholesterol were significantly decreased, high density lipoprotein cholesterol concentrations were significantly increased (all p < 0.05), and bone mineral densities of the lumbar spine and hip were significantly improved (both p < 0.001 compared with baseline). At both 3 and 6 months after treatment, bone alkaline phosphatase concentrations were significantly decreased compared with baseline (61.14 ± 12.38 IU/l and 58.77 ± 11.35 IU/l, respectively, vs. 65.81 ± 14.75 IU/l; p < 0.05), as were tartrate-resistant acid phosphatase concentrations (5.99 ± 2.98 IU/l and 4.90 ± 2.90 IU/l, respectively, vs. 6.15 ± 3.02 IU/l; p < 0.05). CONCLUSION Estradiol-drospirenone effectively alleviates menopausal symptoms and also has beneficial effects on blood lipids and bone metabolism.
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Heuer T, Ventura R, Waszczuk J, Mordec K, Lai J, Fridlib M, Johnson R, Hu L, Cai H, Wagman A, O'Farrell M, Buckley D, Kemble G. 591 Mechanistic analysis of reversible FASN inhibition in preclinical tumor models identifies highly susceptible tumor types and enriches biomarker discovery for clinical applications. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70717-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Huang J, Heidbrink WW, Wan B, von Hellermann MG, Zhu Y, Gao W, Wu C, Li Y, Fu J, Lyu B, Yu Y, Shi Y, Ye M, Hu L, Hu C. Conceptual design of a fast-ion D-alpha diagnostic on experimental advanced superconducting tokamak. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:11E407. [PMID: 25430314 DOI: 10.1063/1.4887820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To investigate the fast ion behavior, a fast ion D-alpha (FIDA) diagnostic system has been planned and is presently under development on Experimental Advanced Superconducting Tokamak. The greatest challenges for the design of a FIDA diagnostic are its extremely low intensity levels, which are usually significantly below the continuum radiation level and several orders of magnitude below the bulk-ion thermal charge-exchange feature. Moreover, an overlaying Motional Stark Effect (MSE) feature in exactly the same wavelength range can interfere. The simulation of spectra code is used here to guide the design and evaluate the diagnostic performance. The details for the parameters of design and hardware are presented.
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Hu L, Gu D, Hu Q, Shi Y, Gao N. Investigation of Solid Dispersion of Atorvastatin Calcium in Polyethylene Glycol 6000 and Polyvinylpyrrolidone. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v13i6.2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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246
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Chen Y, Xu F, Hu L, Liu C, Li J. Significance of postoperative changes in hemodynamics and biochemical indices in pediatric recipients of live-donor liver transplants. Transplant Proc 2014; 45:3320-4. [PMID: 24182810 DOI: 10.1016/j.transproceed.2013.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2012] [Revised: 01/09/2013] [Accepted: 04/23/2013] [Indexed: 01/25/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate the postoperative changes in hemodynamics and biochemical indices in pediatric recipients of live-donor liver transplants (LDLT). METHODS Hemodynamics and biochemical indices (coagulation function, electrolytes, kidney function, liver function, and blood analysis) were monitored on the day before and the 1st, 3rd, 5th, and 7th days after the procedure in 20 children who underwent LDLT from June 2006 to January 2009. RESULTS Compared with preoperative measurements, systolic and diastolic blood pressure and mean arterial pressure increased and prothrombin time was prolonged significantly during the first 7 days after LDLT (P < .05). Fibrinogen, platelet count, total protein, globulin, and blood magnesium decreased significantly (P < .05). Liver enzymes (aspartate transaminase [AST], alanine transaminase [ALT]) and blood sodium increased significantly; serum potassium and calcium declined on the first postoperative day (P < .05). On the 7th day, AST returned to nearly normal (P < .05) and ALT returned to the preoperative levels. Blood urea nitrogen fluctuated within the normal range (P < .05). Total and direct bilirubin decreased on the 1st day but returned to near normal levels on the 7th day (P <.001). CONCLUSIONS Our data demonstrated postoperative changes in hemodynamics, electrolytes, and biochemical indices in pediatric LDLT recipients. The changes in clotting factors and platelet count did not result in severe coagulation function disorder; kidney function was normal. Changes in liver enzymes and bilirubin compared with the preoperation indices were within the regulatory scope of liver and did not result in severe complications. These preliminary postoperative trends suggest that further prospective evaluation is needed.
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Li HJ, Guo CY, Sun JY, Sun LJ, Zhao PH, Hu L, Li Y, Hu J. Nested polymerase chain reaction amplification and sequencing analysis of the light-chain and heavy-chain variable regions in the influenza A H1N1 virus hemagglutinin monoclonal antibody gene. GENETICS AND MOLECULAR RESEARCH 2014; 13:4372-9. [PMID: 25036343 DOI: 10.4238/2014.june.11.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The nested polymerase chain reaction (PCR) method was used for the amplification of the influenza A H1N1 virus hemagglutinin monoclonal antibody light-chain and heavy-chain genes. Sequence analysis of the obtained genes was then used to identify common cloning methods of the mouse immunoglobulin-kappa (Igκ) light-chain and heavy-chain variable gene regions. Twenty-two pairs of amplification primers for the mouse Igκ light-chain and heavy-chain variable gene regions were designed, and 6 mouse anti-human H1N1 influenza virus hemagglutinin monoclonal antibody light-chain and heavy-chain variable gene regions were cloned and sequenced. Comparative analysis was conducted between our results and the mouse Ig sequences published in the National Center of Biotechnology Information (NCBI). The nested PCR method effectively avoided cloning the pseudogenes of the monoclonal antibody, and the amino acid sequence obtained was consistent with the characteristics of the mouse Ig variable region. A general method of cloning the mouse Ig light-chain and heavy-chain variable gene regions was established, which provides a basis for further cloning of mouse monoclonal antibody variable gene regions. This study also provides data for further studies of H1N1 influenza virus hemagglutinin antibody binding sites.
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Hu L, Shen H, Wu Q, Tian L, Hu M. Treatment of polycystic ovarian syndrome with insulin resistance by insulin-sensitizer. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog16222014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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249
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Huang Q, Zhang Y, Liu Y, Hu L, Miller W, Yin F, Cai J. MO-G-18C-03: Evaluation of Deformable Image Registration for Lung Motion Estimation Using Hyperpolarized Gas Tagging MRI. Med Phys 2014. [DOI: 10.1118/1.4889214] [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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Hu L, Yuan L, Ge Y, Yin F, Wu Q. SU-E-T-229: Machine Learning Methods for Knowledge Based Treatment Planning of Prostate Cancer. Med Phys 2014. [DOI: 10.1118/1.4888559] [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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