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Chao M, Brousmiche S, Yuan Y, Rosenzweig K, Lo Y. SU-D-207-01: Markerless Respiratory Motion Tracking with Contrast Enhanced Thoracic Cone Beam CT Projections. Med Phys 2015. [DOI: 10.1118/1.4923902] [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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Sheu R, Ghafar R, Powers A, Green S, Lo Y. SU-D-BRD-06: Creating a Safety Net for a Fully Automated, Script Driven Electronic Medical Record. Med Phys 2015. [DOI: 10.1118/1.4923872] [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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Wu HJ, Lo Y, Luk D, Lau CS, Lu L, Mok MY. Alternatively activated dendritic cells derived from systemic lupus erythematosus patients have tolerogenic phenotype and function. Clin Immunol 2014; 156:43-57. [PMID: 25463431 DOI: 10.1016/j.clim.2014.10.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 10/10/2014] [Accepted: 10/28/2014] [Indexed: 12/20/2022]
Abstract
Tolerogenic dendritic cells (DCs) are potential cell-based therapy in autoimmune diseases. In this study, we generated alternatively activated DCs (aaDCs) by treating monocyte-derived DCs from patients with systemic lupus erythematosus (SLE) and healthy subjects with combination of 1,25 dihydroxyvitamin D(3) (vitD3) and dexamethasone followed by lipopolysaccharide-induced maturation. Lupus aaDCs were found to acquire semi-mature phenotype that remained maturation-resistant to immunostimulants. They produced low level of IL-12 but high level of IL-10. They had attenuated allostimulatory effects on T cell activation and proliferation comparable to normal aaDCs and demonstrated differential immunomodulatory effects on naïve and memory T cells. These aaDCs were capable of inducing IL-10 producing regulatory T effectors from naïve T cells whereas they modulated cytokine profile with suppressed production of IFN-γ and IL-17 by co-cultured memory T cells with attenuated proliferation. These aaDCs were shown to be superior to those generated using vitD3 alone in lupus patients.
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Rhome R, Germano I, Blacksburg S, Maloney-Lutz K, Lo Y, Green S. Long-Term Outcomes and Toxicities of Growth Hormone (Somatotroph)–Secreting Pituitary Macroadenomas Treated With Adjuvant Fractionated Stereotactic Radiation Therapy (FSRT). Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1009] [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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Blacksburg S, Zhang E, Peter H, Liu J, Carpenter T, Lo Y, Rosenzweig K. Characterizing Radiographic and Pathologic Outcomes After Stereotactic Body Radiation Therapy (SBRT) in the Management of Primary Hepatocellular Carcinoma (HCC). Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1222] [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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31
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Chao M, Lo Y, Yuan Y, Sheu R, Rosenzweig K. SU-D-18A-01: Tumor Motion Tracking with a Regional Deformable Registration Model for Four Dimensional Radiation Treatment of Lung Cancer. Med Phys 2014. [DOI: 10.1118/1.4887901] [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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Sheu R, Tseng T, Powers A, Lo Y. SU-E-T-71: Commissioning and Acceptance Testing of a Commercial Monte Carlo Electron Dose Calculation Model (eMC) for TrueBeam. Med Phys 2014. [DOI: 10.1118/1.4888401] [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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Tseng T, Sheu R, Todorov B, Green S, Blacksburg S, Lo Y. TH-A-9A-05: Initial Setup Accuracy Comparison Between Frame-Based and Frameless Stereotactic Radiosurgery. Med Phys 2014. [DOI: 10.1118/1.4889575] [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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34
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Tseng T, Sheu R, Lo Y. SU-E-T-184: Feasibility of Superabsorbent Polymers as a Buildup Material. Med Phys 2014. [DOI: 10.1118/1.4888514] [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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Yuan Y, Chao M, Sheu R, Rosenzweig K, Lo Y. SU-C-18A-06: Tracking Fuzzy Border Using Geodesic Curve and Its Application to Liver Segmentation On Planning CT. Med Phys 2014. [DOI: 10.1118/1.4887833] [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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Wright F, Sharma S, Kini A, Dumane V, Sheu R, Lo Y, Bakst R. A Renewed Application of Intracoronary Brachytherapy for In-Stent Restenosis at a High-Volume Catheterization Center. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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37
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Chao M, Lo Y. SU-E-J-67: Regularized Deformable Registration of Computed Tomography Images Using Multiple Voxel Resolutions for Four Dimensional Radiation Therapy. Med Phys 2013. [DOI: 10.1118/1.4814279] [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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38
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Lo Y, Sheu R. SU-E-T-87: Commissioning of a 50-100 KV X-Ray Unit for Skin Cancer Treatment. Med Phys 2013. [DOI: 10.1118/1.4814522] [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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Sheu R, Lo Y. SU-E-T-63: Dose Profile Study On a KV Superficial Radiation Therapy System - Sensus SRT100TM. Med Phys 2013. [DOI: 10.1118/1.4814498] [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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Factor SH, Lo Y, Schoenbaum E, Klein RS. Incident hypertension in older women and men with or at risk for HIV infection. HIV Med 2013; 14:337-46. [PMID: 23294666 DOI: 10.1111/hiv.12010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/18/2012] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Antiretroviral (ARV) therapy has prolonged the life expectancy of HIV-infected persons, increasing their risk of age-associated diseases, including atherosclerosis (AS). Decreased risk of AS has been associated with the prevention and control of hypertension (HTN). We conducted a cohort study of perimenopausal women and older men with or at risk of HIV infection to identify risk factors for incident HTN. METHODS Standardized interviews, physical examinations, and laboratory examinations were scheduled at 6-month intervals. Interview data included demographics, medical, family, sexual behaviour and drug use histories, and physical activity. RESULTS There were 330 women and 329 men eligible for inclusion in the study; 27% and 35% of participants developed HTN during a median follow-up period of 1080 and 1071 days, respectively. In gender-stratified analysis, adjusting for traditional HTN risk factors (age, race, body mass index, smoking, diabetes, family history of HTN, alcohol dependence, physical activity and high cholesterol), HIV infection was not associated with incident HTN in women [hazard ratio (HR) 1.31; 95% confidence interval (CI) 0.56, 3.06] or men (HR 1.67; 95% CI 0.75, 3.74). Among HIV-infected women, although exposure to ARVs was not significantly associated with incident HTN (HR 0.72; 95% CI 0.26, 1.99), CD4 T-cell count was positively associated with incident HTN (HR 1.15 per 100 cells/μL; 95% CI 1.03, 1.28). Among physically active HIV-infected men, exposure to ARVs was negatively associated with incident HTN (HR 0.15; 95% CI 0.03, 0.78). CONCLUSIONS HIV infection was not associated with incident HTN in older men or women. This study provides additional evidence supporting a causal relationship between immune function and incident HTN, which warrants further study.
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Chin M, Freniere B, Lancerotto L, Saleeby J, Lo Y, Ignotz R, Orgill D, Lalikos J, Fitzgerald T. Hyperspectral Imaging for Early Prediction of Chronic Microvascular Injury in Irradiated Skin. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lo Y, Sheu R, Germano I, Green S. SU-E-T-584: Dosimetric Comparison Between Static IMRT and VMAT for a Four- Lesion Brain Treatment. Med Phys 2012; 39:3840. [DOI: 10.1118/1.4735673] [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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Svoboda A, Lo Y, Sheu R, Dumane V, Rosenzweig K. SU-E-T-315: Planning and Verification of CT-Based HDR Intraluminal Brachytherapy Treatment for Malignant Obstructive Jaundice. Med Phys 2012; 39:3776. [DOI: 10.1118/1.4735401] [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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Bannon E, Lo Y, Urie M. SU-E-T-335: Fetal Dose Estimates for Radiotherapy Using IMRT and VMAT. Med Phys 2012. [DOI: 10.1118/1.4735422] [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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Sheu R, Lo Y. SU-E-T-40: R&V System Direct-Accessing MU Second Check Tool. Med Phys 2012. [DOI: 10.1118/1.4735096] [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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Keller MJ, Malone AM, Carpenter CA, Lo Y, Huang M, Corey L, Willis R, Nguyen C, Kennedy S, Gunawardana M, Guerrero D, Moss JA, Baum MM, Smith TJ, Herold BC. Safety and pharmacokinetics of aciclovir in women following release from a silicone elastomer vaginal ring. J Antimicrob Chemother 2012; 67:2005-12. [PMID: 22556381 DOI: 10.1093/jac/dks151] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Systemic aciclovir and its prodrug valaciclovir are effective in treating and reducing recurrences of genital herpes simplex virus (HSV) and reducing transmission. Local aciclovir delivery, if it can achieve and maintain comparable intracellular genital tract levels, may be equally effective in the treatment and suppression of genital HSV. Intravaginal ring (IVR) delivery of aciclovir may provide pre-exposure prophylaxis against HSV acquisition. METHODS Tolerability and pharmacokinetics were evaluated in six HIV-negative women with recurrent genital HSV who switched their daily oral valaciclovir suppression to an aciclovir IVR for 7 days (n = 3) or 14 days (n = 3). Blood and cervicovaginal lavage (CVL) were collected after oral and IVR dosing to measure aciclovir concentrations and genital swabs were obtained to quantify HSV shedding by PCR. RESULTS The rings were well tolerated. Median plasma aciclovir concentrations were 110.2 ng/mL (IQR, 85.9-233.5) 12-18 h after oral valaciclovir. Little or no drug was detected in plasma following IVR dosing. Median (IQR) CVL aciclovir levels were 127.3 ng/mL (21-660.8) 2 h after oral valaciclovir, 154.4 ng/mL (60.7-327.5) 12-18 h after oral valaciclovir and 438 ng/mL (178.5-618.5) after 7 days and 393 ng/mL (31.6-1615) after 14 days of aciclovir ring use. Median CVL aciclovir levels 2 h after oral dosing were similar to levels observed 7 (P = 0.99) and 14 (P = 0.75) days after ring use. HSV DNA was not detected in genital swabs and there was no significant change in inflammatory mediators. CONCLUSIONS This first-in-human study demonstrated that an IVR could safely deliver mucosal levels of aciclovir similar to oral valaciclovir without systemic absorption. More intensive site-specific pharmacokinetic studies are needed to determine whether higher local concentrations are needed to achieve optimal drug distribution within the genital tract.
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Sheu R, Svoboda A, Dumane V, Lo Y. SU-E-T-203: Sensitivity Study on the Use of Computed Radiography for Linac Routine Quality Assurance - Light/radiation Field Coincidence. Med Phys 2011. [DOI: 10.1118/1.3612153] [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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Svoboda A, Sheu R, Lo Y, Dumane V. SU-E-T-407: Investigation of the Need for Bolus for Superficial Head and Neck Tumors Treated with 3D, RapidArc, and IMRT. Med Phys 2011. [DOI: 10.1118/1.3612361] [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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Lo Y, Sheu R, Green S, Germano I. SU-E-T-893: A Standardized 11-Field Treatment Plan for Radiosurgery to Spinal Lesions. Med Phys 2011. [DOI: 10.1118/1.3612857] [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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Dumane V, Powers A, Sheu R, Green S, Svoboda A, Lo Y. SU-E-T-834: Comparison of Rapidarc, IMRT and 3D Conformal Planning for Treatment of Chestwall, and Regional Nodes. Med Phys 2011. [DOI: 10.1118/1.3612798] [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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