101
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Sio T, Oberoi R, Grams M, Furutani K, Gupta S, Wilson Z, Pokorny J, Bakken K, Schroeder M, Carlson B, Chang K, Elmquist W, Sarkaria J. The Impact of Hemi-brain Irradiation on Accumulation of PI3K/mTOR Inhibitors With Limited (GDC-0980) and Robust (GNE-317) Blood–Brain Barrier Penetration. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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102
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Lai I, Shiau C, Hu Y, Wong T, Ho D, Chang K, Chang F, Liang M, Lee Y, Chen H, Yen S, Chen Y. Treatment Results and Prognostic Factors for Intracranial Non-germinomatous Germ Cell Tumors: Single Institute Experience. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2107] [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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103
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Yamanashi Leib A, Bai Y, Kosovicheva A, Chang K, Puri A, Robertson L, Whitney D. Ensemble Perception of Multiple Crowd Characteristics. J Vis 2014. [DOI: 10.1167/14.10.887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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104
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Dan DT, Gannavarapu B, Lee JG, Chang K, Muthusamy VR. Removable esophageal stents have poor efficacy for the treatment of refractory benign esophageal strictures (RBES). Dis Esophagus 2014; 27:511-7. [PMID: 23121426 DOI: 10.1111/j.1442-2050.2012.01432.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
With the recent availability of removable esophageal stents, endoscopic stenting has been utilized to treat refractory benign esophageal strictures (RBES). The objective of this study was to review the feasibility and effectiveness of removable esophageal stents to treat RBES. Patients who received removable esophageal stents for the treatment of RBES at the institution between 2004-2010 using its stent implantation logs and endoscopic database were retrospectively identified. Patient demographics, stricture etiology and location, stent and procedure characteristics, and clinical outcomes were obtained. Twenty-five patients with a mean age of 70 (72% male) underwent initial stent placement; 24 were successful. Overall clinical success was achieved in five of the 19 patients (26%) ultimately undergoing stent removal. RBES etiologies included anastomotic (13), radiation (5), peptic (3), chemotherapy (1), scleroderma (1), and unknown (2). Alimaxx-E (Merit-Endotek, South Jordan, UT, USA) stents were placed in 20 patients and Polyflex (Boston Scientific, Natick, MA, USA) stents were used in five patients. Immediate complications included failed deployment (1) and chest pain (7). Five patients died prior to stent removal. Stent migration was found in 53% (10/19) of patients who underwent stent removal: nine required additional therapy and one had symptom resolution. Out of the nine patients without stent migration, five required additional therapy and four had symptom resolution. Although placement of removable esophageal stents for RBES is technically feasible, it is frequently complicated by stent migration and chest pain. In addition, few patients achieved long-term stricture resolution after initial stenting. In this study, most patients ultimately required repeated stenting and/or dilations to maintain relief of dysphagia.
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Han YM, Park I, Lee K, Chang K. Transcondylar Fossa Approach for Cerebellopontine Angle and Ventral Brainstem Lesions: Microsurgical Experiences and Avoidance of Complications. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1383915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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106
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Young-Min H, Lee K, Park I, Chang K. Modified Orbitozygomatic (Orbitopterional) Approach for Suprasellae Tumors. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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107
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Hsieh MH, Tsai JJ, Hsieh MY, Huang CF, Yeh ML, Yang JF, Chang K, Lin WR, Lin CY, Chen TC, Huang JF, Dai CY, Yu ML, Chuang WL. Hepatitis C virus infection among injection drug users with and without human immunodeficiency virus co-infection. PLoS One 2014; 9:e94791. [PMID: 24722534 PMCID: PMC3983255 DOI: 10.1371/journal.pone.0094791] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/20/2014] [Indexed: 12/26/2022] Open
Abstract
The aim of this study is to explore the prevalence of hepatitis C virus (HCV) infection among injection drug users (IDUs) with and without human immunodeficiency virus (HIV) infection in southern Taiwan. For 562 IDUs (265 anti-HIV negative, 297 anti-HIV positive), we analyzed liver function, anti-HIV antibody, anti-HCV antibody, HCV viral loads, and hepatitis B surface antigen (HBsAg). HIV RNA viral loads and CD4 cell count for anti-HIV-seropositive IDUs and the HCV genotype for HCV RNA-seropositive IDUs were measured. The seroprevalence rates of anti-HIV, anti-HCV, and HBsAg were 52.8%, 91.3%, and 15.3%, respectively. All the anti-HIV-seropositive IDUs were positive for HIV RNA. Anti-HCV seropositivity was the most important factor associated with HIV infection (odds ratio [OR], 25.06; 95% confidence intervals [CI], 8.97-74.9), followed by male gender (OR, 6.12; 95% CI, 4.05-9.39) and HBsAg seropositivity (OR, 1.90; 95% CI, 1.11-3.34). Among IDUs positive for anti-HCV, 80.7% had detectable HCV RNA. HCV viremia after HCV exposure was strongly related to HIV infection (OR, 6.262; 95% CI, 1.515-18.28), but negatively correlated to HBsAg seropositivity (OR, 0.161; 95% CI, 0.082-0.317). HCV genotype 6 was the most prevalent genotype among all IDUs (41.0%), followed by genotypes 1 (32.3%), 3 (12.8%), and 2 (5.6%). In conclusion, about half IDUs were infected with HIV and >90% with HCV infection. Male and seropositivity for HBsAg and anti-HCV were factors related to HIV infection among our IDUs. HIV was positively correlated, whereas hepatitis B co-infection was negatively correlated with HCV viremia among IDUs with HCV exposure. Different HCV molecular epidemiology was noted among IDUs.
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He LY, Zhang GL, Yan SY, Liu Y, Zhao CS, Wang XL, Li Y, Mi YQ, Liu YM, Li CP, Kou YH, Li Y, Chang K, Meng XL, Sun XJ, Zhao T, Li J, Wang YY, Liu BY. A double-blind comparative study of Chinese herbal medicine Jinlianqingre Effervescent Tablets in combination with conventional therapy for the treatment of uncomplicated hand, foot, and mouth disease. Eur J Clin Microbiol Infect Dis 2014; 33:1429-37. [PMID: 24643639 DOI: 10.1007/s10096-014-2085-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Accepted: 02/27/2014] [Indexed: 11/26/2022]
Abstract
Chinese herbal medicine Jinlianqingre Effervescent Tablets (JET) are the recommended control measure for uncomplicated hand, foot, and mouth disease (HFMD) by the Ministry of Health of China. However, high-quality evidence to support this recommendation is limited. A total of 288 patients ranging in age from 1 to 13 years were randomly assigned to JET in combination with conventional therapy (mainly including the reduction of temperature by applying physical cooling paste or warm bathing), or conventional therapy with placebo group for 7 days. The objective was to test the hypothesis that JET combination therapy is more effective than conventional therapy for uncomplicated HFMD. A randomized, double-blind, placebo-controlled trial was designed. Our study showed that, compared with conventional therapy, the median time to fever resolution was significantly shorter in the JET combination therapy (8 vs. 80 h; p < 0.0001); the risk of fever resolution increased in the JET combination therapy [hazard ratio, 19.8; 95% confidence interval (CI), 12.8 to 30.7]; the median healing time of rash or oral ulcer was significantly shorter in the JET combination therapy (14 vs. 74 h; p < 0.0001); and the median symptom score for skin or oral mucosa lesions improved more rapidly in the JET combination therapy during the follow-up period. The median duration of hospital stay was 6 days in the JET combination therapy and 7 days in the conventional therapy (p < 0.0001). No significant adverse events and complications were found in both groups. The addition of JET to conventional therapy reduced fever clearance time, healing time of skin or oral mucosa lesions, and duration of hospital stay in children with uncomplicated HFMD.
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109
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Cibulas G, Zarzaur B, Van Valkinburgh D, Chang K, Savage S. The Acute Fractured Rib Scale Predicts Poor Pulmonary Outcome After Blunt Thoracic Trauma. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.1048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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110
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Chang K, Barnes S, Haacke EM, Grossman RI, Ge Y. Imaging the effects of oxygen saturation changes in voluntary apnea and hyperventilation on susceptibility-weighted imaging. AJNR Am J Neuroradiol 2013; 35:1091-5. [PMID: 24371029 DOI: 10.3174/ajnr.a3818] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND PURPOSE Cerebrovascular oxygenation changes during respiratory challenges have clinically important implications for brain function, including cerebral autoregulation and the rate of brain metabolism. SWI is sensitive to venous oxygenation level by exploitation of the magnetic susceptibility of deoxygenated blood. We assessed cerebral venous blood oxygenation changes during simple voluntary breath-holding (apnea) and hyperventilation by use of SWI at 3T. MATERIALS AND METHODS We performed SWI scans (3T; acquisition time of 1 minute, 28 seconds; centered on the anterior commissure and the posterior commissure) on 10 healthy male volunteers during baseline breathing as well as during simple voluntary hyperventilation and apnea challenges. The hyperventilation and apnea tasks were separated by a 5-minute resting period. SWI venograms were generated, and the signal changes on SWI before and after the respiratory stress tasks were compared by means of a paired Student t test. RESULTS Changes in venous vasculature visibility caused by the respiratory challenges were directly visualized on the SWI venograms. The venogram segmentation results showed that voluntary apnea decreased the mean venous blood voxel number by 1.6% (P < .0001), and hyperventilation increased the mean venous blood voxel number by 2.7% (P < .0001). These results can be explained by blood CO2 changes secondary to the respiratory challenges, which can alter cerebrovascular tone and cerebral blood flow and ultimately affect venous oxygen levels. CONCLUSIONS These results highlight the sensitivity of SWI to simple and noninvasive respiratory challenges and its potential utility in assessing cerebral hemodynamics and vasomotor responses.
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Lai CC, Lin WR, Chen CY, Chang K, Lu PL, Chen YH, Lee KM, Chang TC, Lin CY. Acute Meningitis Caused by Cladosporium sphaerospermum. Am J Med Sci 2013; 346:523-5. [DOI: 10.1097/maj.0b013e3182a59b5f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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112
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Shen Y, Fan K, Chang J, Lin C, Liao C, Chen I, Huang S, Chang K. Can the Contralateral Lower Neck Be Spared From Postoperative Radiation Therapy for N0-1 Oral Tongue Cancer? Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1129] [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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113
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Lee S, Chang K, Shim J, Cao Y, Shin N, Choi S, Jeong H, Yu S, Park Y, Kim C. Development of Patient-Specific 3D Dose Evaluation Solution for Dose-Guided Adaptive Radiation Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1864] [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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114
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Cao Y, Lee S, Chang K, Shim J, Lee J, Yang D, Park Y, Yoon W, Kim C. Optimization of Treatment Planning Parameters Used in Tomotherapy for Prostate Cancer: Using Dosimetric Physical Index and Plan Evaluation Scoring Index. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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115
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Huang CH, Kuo LL, Yang KD, Lin PS, Lu PL, Lin CC, Chang K, Chen TC, Lin WR, Lin CY, Chen YH, Wu HS. Laboratory diagnostics of dengue fever: An emphasis on the role of commercial dengue virus nonstructural protein 1 antigen rapid test. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2013; 46:358-65. [DOI: 10.1016/j.jmii.2012.07.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 06/10/2012] [Accepted: 07/17/2012] [Indexed: 11/26/2022]
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Chang K, Lee S, Shim J, Cao Y, Choi S, Jeong H, Yang D, Park Y, Yoon W, Kim C. Which Is an Optimal Dosimeter to New Optical CT Scanner (P3DS) Between BANGkit and PRESAGE? A Feasibility Study for Brain SRT Case. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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117
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Kong T, Lee J, Paek J, Chang S, Chang K, Ryu H. Comparison of laparoscopic versus abdominal radical hysterectomy for bulky (≥3cm) FIGO stage IB and IIA cervical cancer. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.185] [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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118
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Kong T, Son J, Paek J, Chang S, Chang K, Ryu H. Outcomes of cold knife conization according to the margin involvement in high-grade lesions and microinvasive squamous cell carcinoma of the uterine cervix. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.187] [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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119
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Samarasena JB, Nakai Y, Park DH, Iwashita T, Chang K. Endoscopic closure of an iatrogenic duodenal perforation: a novel technique using endoclips, endoloop, and fibrin glue. Endoscopy 2013; 44 Suppl 2 UCTN:E424-e425. [PMID: 23258485 DOI: 10.1055/s-0032-1325738] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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120
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Tsai JJ, Liu LT, Chang K, Wang SH, Hsiao HM, Clark KB, Perng GC. The importance of hematopoietic progenitor cells in dengue. Ther Adv Hematol 2013; 3:59-71. [PMID: 23556112 DOI: 10.1177/2040620711417660] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Scientific investigations designed to better understand and assess the distinguishing clinical characteristics pave the way to a successful treatment for a disease. Since the peripheral blood is obtained easily, the most frequent type of investigation performed on infectious agents focuses on the hematological components of blood drawn from patients. Bone marrow aspirates, although somewhat more difficult to obtain, should be evaluated more frequently because they provide additional information, giving us a glimpse into the development of the disease. Understanding the distinct and unique changes in hematological components of the bone marrow induced by a particular pathogen or corresponding to a specific illness may be a valuable asset for the diagnosis and prognosis of disease. A good example of a pathogen that could be better evaluated with greater knowledge of the bone marrow is dengue, one of the most important public vector-borne human diseases. Owing to the multitude of clinical manifestations and the dynamic alterations of various blood components over time, this disease is one of the most difficult to prevent and treat in humans. Although large amounts of data have been generated in the literature, there remains a large gap between this information and its relevance for the purpose of patient care. While evaluating the cellular components in the circulated blood from ill patients provides us with valuable information about the pathogenesis of various pathogens, there are other players participating in the progression to disease. The goal of this review is to emphasize the importance of bone marrow hematopoietic progenitor cells in disease and to inspire other researchers to incorporate them into their investigations on dengue pathogenesis. It is anticipated that the knowledge derived from these investigations not only elicit original concepts on the pathogenesis of dengue but also foster a new way of thinking in terms of vaccine or therapeutic development to prevent and treat dengue.
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Tang PH, Chang K, Hwang WS, Yeo SHG, Ong CL. Fetal hypothalamic hamartoma with suprasellar arachnoid cyst. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 40:725-726. [PMID: 22371236 DOI: 10.1002/uog.11145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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122
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Miao MS, Yan Q, Van de Walle CG, Lou WK, Li LL, Chang K. Polarization-driven topological insulator transition in a GaN/InN/GaN quantum well. PHYSICAL REVIEW LETTERS 2012; 109:186803. [PMID: 23215311 DOI: 10.1103/physrevlett.109.186803] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Indexed: 06/01/2023]
Abstract
Topological insulator (TI) states have been demonstrated in materials with a narrow gap and large spin-orbit interactions (SOI). Here we demonstrate that nanoscale engineering can also give rise to a TI state, even in conventional semiconductors with a sizable gap and small SOI. Based on advanced first-principles calculations combined with an effective low-energy k · p Hamiltonian, we show that the intrinsic polarization of materials can be utilized to simultaneously reduce the energy gap and enhance the SOI, driving the system to a TI state. The proposed system consists of ultrathin InN layers embedded into GaN, a layer structure that is experimentally achievable.
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Hung L, Yang S, Chang K, Yen C, Lin Y, Chang-Liao P, Tsou J, Hung W, Tang T, Liu Y. 374 CPAP is a Novel Transcriptional Co-activator of NF-κB. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72172-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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124
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Fan K, Tsang N, Chang J, Lin C, Liao C, Chen I, Chang K, Wang H, Hsu C. Retrospective Analysis: Postoperative CCRT Improved Treatment Outcome of Oral Cavity Cancer With Multiple Nodal Metastases but Without Extracapsular Spreading. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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125
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Hsu J, Lin W, Jiaang W, Yen K, Hsieh S, Yen S, Chang K, Huang Y, Chao Y, Chen C. 178 In Vitro Potency, Selectivity and Inhibitory Activity of a Novel FLT3 Inhibitor. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71976-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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