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Chen YF, Lee YC, Lin WW, Lu MC, Yang YC, Chiu CW. Application of Nanohybrid Substrates with Layer-by-Layer Self-Assembling Properties to High-Sensitivity Surface-Enhanced Raman Scattering Detection. ACS Omega 2024; 9:1894-1903. [PMID: 38222643 PMCID: PMC10785305 DOI: 10.1021/acsomega.3c08608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/26/2023] [Accepted: 12/12/2023] [Indexed: 01/16/2024]
Abstract
The present study was conducted to prepare and investigate large-area, high-sensitivity surface-enhanced Raman scattering (SERS) substrates. Organic/inorganic nanohybrid dispersants consisting of an amphiphilic triblock copolymer (hereafter referred to simply as "copolymer") and graphene oxide (GO) were used to stabilize the growth and size of gold nanoparticles (AuNPs). Ion-dipole forces were present between the AuNPs and copolymer dispersants, while the hydrogen bonds between GO and the copolymer prevented the aggregation of GO, thereby stabilizing the AuNP/GO nanohybrids. Transmission electron microscopy (TEM) revealed that the AuNPs had particle sizes of 25-35 nm and a relatively uniform size distribution. The AuNP/GO nanohybrids were deposited onto the glass substrate by using the solution drop-casting method and employed for SERS detection. The self-assembling properties of two-dimensional sheet-like GO led to a regular lamellar arrangement of AuNP/GO nanohybrids, which could be used for the preparation of large-area SERS substrates. Following removal of the copolymer by annealing at 300 °C for 2 h, measurements were obtained under scanning electron microscopy. The results confirmed that 2D GO nanosheets were capable of stabilizing AuNPs, with the final size reaching approximately 40 nm. These AuNPs were adsorbed on both sides of the GO nanosheets. Because the GO nanosheets were merely 5 nm-thick, a good three-dimensional hot-junction effect was generated along the z-axis of the AuNPs. Lastly, the prepared material was used for the SERS detection of rhodamine 6G (R6G), a commonly used highly fluorescent dye. An enhancement factor (EF) of up to 3.5 × 106 was achieved, and the limit of detection was approximately 10-10 M. Detection limits of 10-10 M and < 10-10 M were also observed with the detection of Direct Blue 200 and the biological molecule adenine. It is therefore evident that AuNP/copolymer/GO nanohybrids are large-area flexible SERS substrates that hold great potential in environmental monitoring and biological system detection applications.
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Affiliation(s)
| | | | - Wen-Wei Lin
- Department of Materials Science
and Engineering, National Taiwan University
of Science and Technology, Taipei 10607, Taiwan
| | - Ming-Chang Lu
- Department of Materials Science
and Engineering, National Taiwan University
of Science and Technology, Taipei 10607, Taiwan
| | - Yung-Chi Yang
- Department of Materials Science
and Engineering, National Taiwan University
of Science and Technology, Taipei 10607, Taiwan
| | - Chih-Wei Chiu
- Department of Materials Science
and Engineering, National Taiwan University
of Science and Technology, Taipei 10607, Taiwan
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Li ST, Chou YH, Huang HJ, Chang HC, Lee YC. Exploring the Benefits of 3D-Printed Bolus in Cone Beam CT for Modified Radical Mastectomy Breast Cancer. Int J Radiat Oncol Biol Phys 2023; 117:e685. [PMID: 37786014 DOI: 10.1016/j.ijrobp.2023.06.2152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) To improve the accuracy of superficial dose coverage for patients undergoing modified radical mastectomy (MRM), boluses are frequently applied to the skin surface of targeted region during radiotherapy. The irregular curvature of MRM breast cases results in discrepancies of dosimetry and poor contact. Additionally, the presence of an air gap causes unnecessary high-dose escalation and uncertainty in dose calculation, making the use of commercial flat bolus problematic. This study evaluated the effectiveness of 3D-printed bolus by comparing it to commercial bolus in setup variations and dosimetric compliance through daily cone-beam computed tomography (CBCT) scans. MATERIALS/METHODS Ten patients underwent MRM were divided into 2 groups. 5 patients treated with 0.5 cm commercial bolus as group A while the other 5 patients covered by 3D Bolus as group B. 3D bolus was made of polylactic acid filament (PLA) and contoured in advance with thickness of 0.5 cm on the surface of target. Positional errors were recorded through daily image guidance and compared with the images. Both groups had right-sided breast with neck lymph nodes involved and received 50 Gy in 25 fractions using 4 partial arcs of the volumetric modulated arc therapy (VMAT) technique. The CBCTs were recalculated through treatment planning system (TPS) to assess superficial dose coverage. A two-tailed student's t-test was applied. RESULTS Groups A and B pitch angles were -0.203 ± 0.837° and 0.334 ± 0.909° (p = 0.0003). Roll angle were 0.313 ± 0.728° and -0.633 ± 1.286° (p = 0.0000013). Yaw angle were -0.034 ± 0.872° and 0.018 ± 0.883° (p = 0.721). There was a trend of differences in the Z-axis and significant statistical differences in the pitch and roll angles due to aligning gel layers directly with group A's body surface, while 3D bolus rigidly adherence to group B's delineated curve. In the planned target volume (PTV), the CI and HI of group A were 0.9448±0.0208 and 1.2061±0.0448, respectively, while 0.9776±0.0144 and 1.1472±0.0206 (p<0.005) were for group B. As for the superficial region, which is defined from body surface to 0.5cm inside PTV, CI and HI of A were 0.8290±0.0599 and 1.4675±0.2434, while for B, they were 0.9753±0.0214 and 1.1330±0.0126, respectively (p<0.005). CONCLUSION The study analyzed the results through image comparison and investigated the CI and HI between two types of boluses. The 3D bolus reduces setup errors and improves dose coverage especially when superficial region is concerned. Better consistency of patient repositioning and dosimetry can be achieved and proved by daily assessment of CBCT scan. The customization of 3D bolus with integration of TPS and CT scans provides a solution to the inadequacies of commercial bolus. The results suggest that the use of 3D bolus is a promising development in radiation therapy for MRM breast cancer patients.
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Affiliation(s)
- S T Li
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y H Chou
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - H J Huang
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - H C Chang
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y C Lee
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
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Yang HF, Ke YF, Tsai PF, Chan HM, Chen HL, Lee YC. The Effectiveness of Music Interventions for Improving Anxiety Symptoms in Cancer Patients Undergoing Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 117:e453. [PMID: 37785457 DOI: 10.1016/j.ijrobp.2023.06.1641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Being alone in the treatment room during radiation therapy (RT) often causes anxiety which may lead to treatment failure. The benefit of music interventions in reducing anxiety among cancer patients during RT simulations is still controversial. The goal of this study is to evaluate the effect of music on anxiety symptoms among patients undergoing initial RT and a randomized trial was conducted. MATERIALS/METHODS Patients who received RT for the first time were enrolled and were randomly allocated into groups of experiment and control. The questionnaire of mood thermometer (BSRS-5), distress thermometer (DT), and the Beck Anxiety Inventory (BAI-C) and were given before and after RT. We also measured the changes in physiological symptoms for ten consecutive days since the first day of RT. The experimental group was given music during RT, while the control group was not. The generalized linear mixed model was used to estimate the pre-post difference of music interventions on the BSRS-5, DT, and BAI-C compared with control group after considering the random intercept and the unstructured residual variance-covariance matrix. RESULTS A total of 50 patients in the experimental group and 50 patients in the control group were enrolled in this study. The satisfaction degree of treatment in the experimental group was 100%, but it was 96% in control group (p = 0.0048). The pre-test BSRS-5 was 3.4±2.3 for the experimental group versus 2.6±2.3 for the control group (p = 0.0815), the post-test BSRS-5 score was significantly reduced in the experimental group (1.6±1.4 for experimental group versus 2.7±2.2 for the control group, p = 0.0057), the significant pre-post difference of BSRS-5 between group was found (p = 0.0024). When the experimental group withdrew from the music intervention, the BSRS-5 rebounded to 3.7±3.0. The pre-test DT was 4.3±1.5 and 3.4±1.7 in the experimental group and control group (p = 0.0051), and the post-test DT score was significantly reduced in the experimental group (2.7±1.2 for the experimental group and 3.5±1.3 for the control group, p = 0.0021), the significant pre-post difference of DT between group was found (p<.0001). When the experimental group withdrew from the music intervention, the DT rebounded to 3.7±1.4. The pre-test BAI-C was 6.7±11.7 and 7.8±8.5 in the experimental group and control group (p = 0.5878), and the post-test BAI-C score was significantly lower in the experimental group (1.7±3.7 for the experimental group and 7.4±8.0 for the control group, p<.0001), however, the pre-post difference of BAI-C between group was not significant (p = 0.0619). When the experimental group withdrew from the music intervention, the BAI-C rebounded to 6.5±8.7. There is a significantly increased systolic blood pressure in the control group compared with the patients had music intervention. CONCLUSION This study's results provide evidence that playing music routinely (music intervention) during RT can be an excellent way to relieve patients' anxiety and improve their comfort.
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Affiliation(s)
- H F Yang
- Department of Nursing, Chung Shan Medical University Hospital, Taichung, Taiwan; Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y F Ke
- Department of Nursing, Chung Shan Medical University Hospital, Taichung, Taiwan; Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - P F Tsai
- Department of Nursing, Chung Shan Medical University Hospital, Taichung, Taiwan; Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - H M Chan
- Department of Nursing, Chung Shan Medical University Hospital, Taichung, Taiwan; Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - H L Chen
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y C Lee
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
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Yarlagadda S, Kutuk T, Saxena A, Roy M, Tolakanahalli RP, Appel H, La Rosa de Los Rios AF, Tom MC, Hall MD, Wieczorek DJ, Lee YC, McDermott MW, Ahluwalia M, Gutierrez A, Mehta MP, Kotecha R. Stereotactic Radiosurgery for Small Intact Brain Metastasis: A Comparative Evaluation of 3 Different Single Fraction Prescription Doses. Int J Radiat Oncol Biol Phys 2023; 117:e159-e160. [PMID: 37784753 DOI: 10.1016/j.ijrobp.2023.06.989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) While single-fraction stereotactic radiosurgery (SRS) in the treatment of small brain metastases (SBM, ≤ 2 cm) is well established, prescription dosing varies considerably across institutions and clinical trials. The choice of prescription dose is a delicate balance between local failure (LF) and radiation necrosis (RN) risks. In the modern era, historically-established dosing thresholds may no longer be applicable. To evaluate the impact of prescription dose on outcomes, we performed a comparative analysis of patients with SBM treated with definitive SRS using three different prescriptions, at a single tertiary institution. MATERIALS/METHODS Consecutive patients with intact SBM treated with SRS from January 2017 and December 2021 were analyzed. Baseline patient characteristics and dosing parameters were abstracted from the medical record. To limit the integral brain dose when treating multiple brain metastases, the institutional practice was to reduce prescription dose as the total number of lesions increased (i.e., 24 Gy for ≤10 lesions, 22 Gy for 11-20, and 20 Gy for >20). A per lesion analysis, where each lesion was followed from the date of SRS to the last follow-up, was conducted with primary endpoints of LF and RN. Gray's test was used to compare the cumulative incidence of the LF and RN, with death as a competing risk. Factors affecting LF were analyzed using Cox hazard regression analysis. RESULTS A total of 1318 SBM in 250 patients received SRS and met the inclusion criteria. The median age was 62 years (range: 18-90), median KPS was 90 (range: 50-100) and 66% were female. The most common primary tumors were lung (55.5%) and breast cancers (26.4%). With a median follow-up of 12 months, 136 (11%) LF in 44 patients and 70 (5.7%) RN events in 46 patients occurred. The actuarial 1-year cumulative rate of LF was lower in lesions treated with 24 Gy (6.4%, 95% CI: 4.7-8.6%) or 22 Gy (5.8%, 95% CI: 3.7-8.7%) compared to 20 Gy (15.4%, 95% CI: 10.9-20.5%) (p<0.01). 22 Gy and 24 Gy prescription doses were associated with a 44% and 52% reduction in risk in LF compared to 20 Gy (HR: 0.56; 95% CI: 0.36-0.9; p = 0.01 and HR: 0.48; 95% CI: 0.31-0.74; p<0.01, respectively). In a subset analysis of radiosensitive tumors, 1-year LF rate was still lower with 24 Gy (7.4%, 95% CI: 5.3-9.9%) and 22 Gy (6.1%, 95% CI: 3.7-9.4%) than 20 Gy (15.7%, 95% CI: 11.2-21%) (p = 0.01). The cumulative 1-year RN rate numerically declined with dose, but was not statistically significantly different, with 3.6% (95% CI: 2.3-5.3%) for 24 Gy, 2.6% (95% CI: 1.3-4.8%) for 22 Gy and 1.4% (95% CI: 0.4-3.7%) for 20 Gy. CONCLUSION Patients treated with single fraction SRS to intact SBM were at increased risk of LF with prescription doses of 20 Gy compared to 22-24 Gy, without an increased risk of RN. Even in patients with radiosensitive histologies, higher LF rates were still observed following 20 Gy compared to 22-24 Gy.
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Affiliation(s)
- S Yarlagadda
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - T Kutuk
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - A Saxena
- Department of Biostatistics, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - M Roy
- Department of Biostatistics, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - R P Tolakanahalli
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
| | - H Appel
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - A F La Rosa de Los Rios
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - M C Tom
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - M D Hall
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
| | - D J Wieczorek
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
| | - Y C Lee
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
| | - M W McDermott
- Department of Neurosurgery, Miami Neuroscience Institute, Baptist Health South Florida, Miami, FL
| | - M Ahluwalia
- Department of Medical Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL
| | - A Gutierrez
- Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Herbert Wertheim College of Medicine, Florida International University, Miami, FL
| | - M P Mehta
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
| | - R Kotecha
- Department of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, FL; Department of Radiation Oncology, Florida International University, Herbert Wertheim College of Medicine, Miami, FL
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Chang BJ, Lee YC. Src Kinase Activates Signal Transducer and Activator of Transcription 3 to Enhance Radioresistance in Triple Negative Breast Cancer Cells. Int J Radiat Oncol Biol Phys 2023; 117:e244. [PMID: 37784959 DOI: 10.1016/j.ijrobp.2023.06.1176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Triple-negative breast cancer (TNBC) is known to be insensitive to radiation therapy, and it requires to development radiosensitizer for TNBC. MATERIALS/METHODS We previously established a radioresistant sub-line from MDA-MB-231 cells, called 231-RR, and have demonstrated that 231-RR cells displayed high cancer stem cell (CSC) activity. And 231-RR cells were treated with dasatinib, a Src inhibitor. RESULTS In the present study, we discovered that the activation of Src kinase was increased in 231-RR cells. Treatment of dasatinib, an Src inhibitor, sensitized 231-RR cells to radiotherapy, along with the increased p-γH2Axser139, indicated the enhancement of DNA damage. Dasatinib also caused the downregulation of cancer stemness factors, including c-Myc, OCT4, and the Notch intracellular domain, as well as the decrease of phosphorylation of Signal Transducer and Activator of Transcription 3 (STAT3). The treatment of C188-9, a STAT3 inhibitor, also sensitized 231-RR cells toward radiotherapy along with the increased p-γH2Axser139, but without changing the phosphorylation of Src, indicating that STAT3 is a downstream event of Src activation. CONCLUSION In conclusion, our data suggests that the inhibitors of Src or STAT3 could function as radiosensitizers or CSC targeting agents for TNBC radiotherapy.
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Affiliation(s)
- B J Chang
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y C Lee
- Department of Radiation Oncology, Chung Shan Medical University Hospital, Taichung, Taiwan
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Chen CH, Kao HH, Lee YC, Chen JP. Injectable Thermosensitive Hyaluronic Acid Hydrogels for Chondrocyte Delivery in Cartilage Tissue Engineering. Pharmaceuticals (Basel) 2023; 16:1293. [PMID: 37765101 PMCID: PMC10535600 DOI: 10.3390/ph16091293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
In this study, we synthesize a hyaluronic acid-g-poly(N-isopropylacrylamide) (HPN) copolymer by grafting the amine-terminated poly(N-isopropylacrylamide) (PNIPAM-NH2) to hyaluronic acid (HA). The 5% PNIPAM-NH2 and HPN polymer solution is responsive to temperature changes with sol-to-gel phase transition temperatures around 32 °C. Compared with the PNIPAM-NH2 hydrogel, the HPN hydrogel shows higher water content and mechanical strength, as well as lower volume contraction, making it a better choice as a scaffold for chondrocyte delivery. From an in vitro cell culture, we see that cells can proliferate in an HPN hydrogel with full retention of cell viability and show the phenotypic morphology of chondrocytes. In the HPN hydrogel, chondrocytes demonstrate a differentiated phenotype with the upregulated expression of cartilage-specific genes and the enhanced secretion of extracellular matrix components, when compared with the monolayer culture on tissue culture polystyrene. In vivo studies confirm the ectopic cartilage formation when HPN was used as a cell delivery vehicle after implanting chondrocyte/HPN in nude mice subcutaneously, which is shown from a histological and gene expression analysis. Taken together, the HPN thermosensitive hydrogel will be a promising injectable scaffold with which to deliver chondrocytes in cartilage-tissue-engineering applications.
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Affiliation(s)
- Chih-Hao Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Keelung, Chang Gung University College of Medicine, Keelung 20401, Taiwan
| | - Hao-Hsi Kao
- Division of Nephrology, Chang Gung Memorial Hospital at Keelung, Chang Gung University College of Medicine, Keelung 20401, Taiwan
| | - Yen-Chen Lee
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
- Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Kwei-San, Taoyuan 33305, Taiwan
- Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Kwei-San, Taoyuan 33302, Taiwan
- Department of Materials Engineering, Ming Chi University of Technology, Tai-Shan, New Taipei City 24301, Taiwan
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Chuang WY, Yu WH, Lee YC, Zhang QY, Chang H, Shih LY, Yeh CJ, Lin SMT, Chang SH, Ueng SH, Wang TH, Hsueh C, Kuo CF, Chuang SS, Yeh CY. Deep Learning-Based Nuclear Morphometry Reveals an Independent Prognostic Factor in Mantle Cell Lymphoma. Am J Pathol 2022; 192:1763-1778. [PMID: 36150505 DOI: 10.1016/j.ajpath.2022.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/18/2022] [Accepted: 08/15/2022] [Indexed: 06/16/2023]
Abstract
Blastoid/pleomorphic morphology is associated with short survival in mantle cell lymphoma (MCL), but its prognostic value is overridden by Ki-67 in multivariate analysis. Herein, a nuclear segmentation model was developed using deep learning, and nuclei of tumor cells in 103 MCL cases were automatically delineated. Eight nuclear morphometric attributes were extracted from each nucleus. The mean, variance, skewness, and kurtosis of each attribute were calculated for each case, resulting in 32 morphometric parameters. Compared with those in classic MCL, 17 morphometric parameters were significantly different in blastoid/pleomorphic MCL. Using univariate analysis, 16 morphometric parameters (including 14 significantly different between classic and blastoid/pleomorphic MCL) emerged as significant prognostic factors. Using multivariate analysis, Biologic MCL International Prognostic Index (bMIPI) risk group (P = 0.025), low skewness of nuclear irregularity (P = 0.020), and high mean of nuclear irregularity (P = 0.047) emerged as independent adverse prognostic factors. Additionally, a morphometric score calculated from the skewness and mean of nuclear irregularity (P = 0.0038) was an independent prognostic factor in addition to bMIPI risk group (P = 0.025), and a summed morphometric bMIPI score was useful for risk stratification of patients with MCL (P = 0.000001). These results demonstrate, for the first time, that a nuclear morphometric score is an independent prognostic factor in MCL. It is more robust than blastoid/pleomorphic morphology and can be objectively measured.
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Affiliation(s)
- Wen-Yu Chuang
- Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan; Chang Gung Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan; Center for Vascularized Composite Allotransplantation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | | | - Yen-Chen Lee
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | | | - Hung Chang
- School of Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Hematology and Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Lee-Yung Shih
- School of Medicine, Chang Gung University, Taoyuan, Taiwan; Division of Hematology and Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chi-Ju Yeh
- Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Samuel Mu-Tse Lin
- aetherAI, Co, Ltd, Taipei, Taiwan; Taipei American School, Taipei, Taiwan
| | - Shang-Hung Chang
- School of Medicine, Chang Gung University, Taoyuan, Taiwan; Center for Big Data Analytics and Statistics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shir-Hwa Ueng
- Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan; Chang Gung Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Tong-Hong Wang
- Tissue Bank, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chuen Hsueh
- Department of Pathology, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan; School of Medicine, Chang Gung University, Taoyuan, Taiwan; Chang Gung Molecular Medicine Research Center, Chang Gung University, Taoyuan, Taiwan
| | - Chang-Fu Kuo
- School of Medicine, Chang Gung University, Taoyuan, Taiwan; Center for Artificial Intelligence in Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Shih-Sung Chuang
- Department of Pathology, Chi-Mei Medical Center, Tainan, Taiwan.
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Kuo LC, Wang WH, Lee YC. [A Reappraisal of Pain Using a Nurses' Professional Study Circle]. Hu Li Za Zhi 2022; 69:50-57. [PMID: 35644597 DOI: 10.6224/jn.202206_69(3).08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Pain relates to the highly personal and subjective experience of feelings and emotions. Patients are often misunderstood because of language-related limitations and the conditions of their disease. PURPOSE In this research, a professional study circle was held to help nurses reconstruct their understanding of patient pain to enhance their awareness / empathy for differences in pain perception between others and themselves and to improve their ability to provide professional, individualized care. METHODS Nine nurses were invited from the urology department to join the developed professional study circle. We spent one year and a half reading "Listening to Pain: Finding Words, Compassion, and Relief" and held a sharing and discussion roundtable meeting every month. The study circle included: (1) assigned reading and the appointment of a leader on rotation to direct the sharing and discussion, (2) presentation of clinical cases related to the reading, (3) discussions of how to apply what they had learned in clinical practice, and (4) an interview of study circle members and a full analysis of their reflections and changes of view regarding pain perceptions. RESULTS After a close reading and guided discussions, these nine nurses began to change their perceptions of pain and, in general, passed through three stages, including: (1) cast doubt on the authenticity of patient expressions of pain because of stereotyped biases; (2) develop a new empathy based on careful listening; (3) providing individualized care and experiencing professional growth. After successfully transiting through these stages, the nurses held a more profound understanding of their patients, practiced a more sensitive use of language, and reflected an enhanced professional ability to assess pain. CONCLUSIONS / IMPLICATIONS FOR PRACTICE This professional study circle successfully helped the nurses internalize a more empathetic understanding of pain and exhibit greater skill in designing individualized care for their patients.
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Affiliation(s)
- Li-Chuan Kuo
- PhD, Assistant Professor, Department of Medicine Humanities, School of Medicine, Tzu Chi University, Taiwan, ROC
| | - Wan-Hsiang Wang
- MSN, RN, Deputy Director, Department of Nursing, Hualien Tzu Chi Hospital; PhD Student, Department of Education and Potential Development, National Dong Hwa University; and Adjunct Lecturer, Department of Nursing, Tzu Chi University of Science and Technology, Taiwan, ROC.
| | - Yen-Chen Lee
- MSN, RN, Supervisor, Department of Nursing, Hualien Tzu Chi Hospital, and Adjunct Lecturer, Department of Nursing, Tzu Chi University of Science and Technology, Taiwan, ROC
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Abstract
Despite the growing recognition of a host genetic effect on shaping gut microbiota composition, the genetic determinants of oral microbiota remain largely unexplored, especially in the context of oral diseases. Here, we performed a microbiome genome-wide association study in 2 independent cohorts of patients with oral squamous cell carcinoma (OSCC, n = 144 and 67) and an additional group of noncancer individuals (n = 104). Besides oral bacterial dysbiosis and signatures observed in OSCC, associations of 3 loci with the abundance of genus-level taxa and 4 loci with β diversity measures were detected (q < 0.05) at the discovery stage. The most significant hit (rs10906082 with the genus Lachnoanaerobaculum, P = 3.55 × 10-9 at discovery stage) was replicated in a second OSCC cohort. Moreover, the other 2 taxonomical associations, rs10973953 with the genus Kingella (P = 1.38 × 10-9) and rs4721629 with the genus Parvimonas (P = 3.53 × 10-8), were suggestive in the meta-analysis combining 2 OSCC cohorts. Further pathway analysis revealed that these loci were enriched for genes in regulation of oncogenic and angiogenic responses, implicating a genetic anchor to the oral microbiome in estimation of casual relationships with OSCC. Our findings delineate the role of host genotypes in influencing the structure of oral microbial communities.
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Affiliation(s)
- S F Yang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - C W Lin
- Institute of Oral Sciences, Chung Shan Medical University, Taichung, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - C Y Chuang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Department of Otolaryngology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Y C Lee
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W H Chung
- Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan.,Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - H C Lai
- Department of Medical Biotechnology and Laboratory Science, and Microbiota Research Center, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Central Research Laboratory, XiaMen Chang Gung Hospital, XiaMen, China
| | - L C Chang
- Department of Mathematical Sciences, Florida Atlantic University, Boca Raton, FL, USA
| | - S C Su
- Whole-Genome Research Core Laboratory of Human Diseases, Chang Gung Memorial Hospital, Keelung, Taiwan.,Department of Dermatology, Drug Hypersensitivity Clinical and Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.,Central Research Laboratory, XiaMen Chang Gung Hospital, XiaMen, China
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10
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Hennige SJ, Larsson AI, Orejas C, Gori A, De Clippele LH, Lee YC, Jimeno G, Georgoulas K, Kamenos NA, Roberts JM. Using the Goldilocks Principle to model coral ecosystem engineering. Proc Biol Sci 2021; 288:20211260. [PMID: 34375552 PMCID: PMC8354746 DOI: 10.1098/rspb.2021.1260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The occurrence and proliferation of reef-forming corals is of vast importance in terms of the biodiversity they support and the ecosystem services they provide. The complex three-dimensional structures engineered by corals are comprised of both live and dead coral, and the function, growth and stability of these systems will depend on the ratio of both. To model how the ratio of live : dead coral may change, the ‘Goldilocks Principle’ can be used, where organisms will only flourish if conditions are ‘just right’. With data from particle imaging velocimetry and numerical smooth particle hydrodynamic modelling with two simple rules, we demonstrate how this principle can be applied to a model reef system, and how corals are effectively optimizing their own local flow requirements through habitat engineering. Building on advances here, these approaches can be used in conjunction with numerical modelling to investigate the growth and mortality of biodiversity supporting framework in present-day and future coral reef structures.
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Affiliation(s)
- S J Hennige
- Changing Oceans Group, School of GeoSciences, University of Edinburgh, Edinburgh, UK
| | - A I Larsson
- Department of Marine Sciences, Tjärnö Marine Laboratory, University of Gothenburg, Gothenburg, Sweden
| | - C Orejas
- Instituto Español de Oceanografía, Centro Oceanográfico de Gijón, IEO, CSIC, Gijón, Spain
| | - A Gori
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | - L H De Clippele
- Changing Oceans Group, School of GeoSciences, University of Edinburgh, Edinburgh, UK
| | - Y C Lee
- School of Engineering, Computing and Mathematics, University of Plymouth, Devon, UK
| | - G Jimeno
- School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK
| | - K Georgoulas
- Changing Oceans Group, School of GeoSciences, University of Edinburgh, Edinburgh, UK
| | - N A Kamenos
- School of Geographical and Earth Sciences, University of Glasgow, Glasgow, UK
| | - J M Roberts
- Changing Oceans Group, School of GeoSciences, University of Edinburgh, Edinburgh, UK
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11
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Hayashi K, Nikolos F, Lee YC, Jain A, Tsouko E, Gao H, Kasabyan A, Leung HE, Osipov A, Jung SY, Kurtova AV, Chan KS. Tipping the immunostimulatory and inhibitory DAMP balance to harness immunogenic cell death. Nat Commun 2020; 11:6299. [PMID: 33288764 PMCID: PMC7721802 DOI: 10.1038/s41467-020-19970-9] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 11/04/2020] [Indexed: 12/21/2022] Open
Abstract
Induction of tumor cell death is the therapeutic goal for most anticancer drugs. Yet, a mode of drug-induced cell death, known as immunogenic cell death (ICD), can propagate antitumoral immunity to augment therapeutic efficacy. Currently, the molecular hallmark of ICD features the release of damage-associated molecular patterns (DAMPs) by dying cancer cells. Here, we show that gemcitabine, a standard chemotherapy for various solid tumors, triggers hallmark immunostimualtory DAMP release (e.g., calreticulin, HSP70, and HMGB1); however, is unable to induce ICD. Mechanistic studies reveal gemcitabine concurrently triggers prostaglandin E2 release as an inhibitory DAMP to counterpoise the adjuvanticity of immunostimulatory DAMPs. Pharmacological blockade of prostaglandin E2 biosythesis favors CD103+ dendritic cell activation that primes a Tc1-polarized CD8+ T cell response to bolster tumor rejection. Herein, we postulate that an intricate balance between immunostimulatory and inhibitory DAMPs could determine the outcome of drug-induced ICD and pose COX-2/prostaglandin E2 blockade as a strategy to harness ICD.
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Affiliation(s)
- K Hayashi
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
- Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - F Nikolos
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Y C Lee
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei City, Taiwan
| | - A Jain
- Alkek Center for Molecular Discovery, Proteomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - E Tsouko
- Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX, 77030, USA
| | - H Gao
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - A Kasabyan
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - H E Leung
- Alkek Center for Molecular Discovery, Proteomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - A Osipov
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - S Y Jung
- Alkek Center for Molecular Discovery, Proteomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - A V Kurtova
- Graduate Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - K S Chan
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA.
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12
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Abstract
PURPOSE As the designated tertiary referral centre for infectious diseases in Hong Kong, our hospital received the city's first group of patients diagnosed with coronavirus disease 2019 (COVID-19). Herein, we studied the earliest patients admitted to our centre in order to clarify the typical radiological findings, particularly computed tomography (CT) findings, associated with COVID-19. METHODS From 22 January 2020 to 29 February 2020, 19 patients with confirmed COVID-19 underwent high-resolution or conventional CT scans of the thorax in our centre. The CT imaging findings of these patients with confirmed COVID-19 in Hong Kong were reviewed in this study. RESULTS Ground-glass opacities (GGO) with peripheral subpleural distribution were found in all patients (100%). No specific zonal predominance was observed. All lobes were involved in 16 (84.2%) patients, focal subsegmental consolidations were observed in 14 (73.7%) patients, and interlobular septal thickening was present in 12 (63.2%) patients. No mediastinal lymph node enlargement, centrilobular nodule, or pleural effusion was detected in any of the patients. Other imaging features present in several patients include bronchial dilatation, bronchial wall thickening, and crazy-paving patterns. CONCLUSIONS Peripheral subpleural GGO without zonal predominance in the absence of centrilobular nodule, pleural effusion, and lymph node enlargement were consistent findings in patients with confirmed COVID-19. The observed radiological patterns on CT scans can help identify COVID-19 and assess affected patients in the context of the ongoing outbreak.
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Affiliation(s)
- S K Li
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - F H Ng
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - K F Ma
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - W H Luk
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - Y C Lee
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - K S Yung
- Department of Radiology, Princess Margaret Hospital, Hong Kong
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13
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Ju HJ, Kwon JW, Lee YC, Bae JM. Seasonal variation in chronic skin diseases: real-world evidence from a nationwide population-based study in Korea. J Eur Acad Dermatol Venereol 2020; 34:e793-e795. [PMID: 32386445 DOI: 10.1111/jdv.16612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H J Ju
- Department of Dermatology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J-W Kwon
- Department of Ophthalmology, St. Vincent's Hospital, College of Medicine, Catholic University of Korea, Seoul, Korea
| | - Y C Lee
- Department of Otolaryngology - Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
| | - J M Bae
- Department of Dermatology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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14
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Woo SC, Yung KS, Wong T, Yu ELM, Li SK, Chan HF, Chan CH, Lee YC, Chan JMC, Leung WS. Imaging findings of critically ill patients with COVID-19 pneumonia: a case series. Hong Kong Med J 2020; 26:236-239. [PMID: 32362589 DOI: 10.12809/hkmj208441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- S C Woo
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - K S Yung
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - T Wong
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - E L M Yu
- Clinical Research Centre, Princess Margaret Hospital, Hong Kong
| | - S K Li
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - H F Chan
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - C H Chan
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - Y C Lee
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - J M C Chan
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
| | - W S Leung
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
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15
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Ng FH, Li SK, Lee YC, Ma JKF. Temporal changes in computed tomography of COVID-19 pneumonia with perilobular fibrosis. Hong Kong Med J 2020; 26:250.e1-251.e2. [PMID: 32362587 DOI: 10.12809/hkmj208490] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- F H Ng
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - S K Li
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - Y C Lee
- Department of Radiology, Princess Margaret Hospital, Hong Kong
| | - J K F Ma
- Department of Radiology, Princess Margaret Hospital, Hong Kong
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16
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Lee YC, Buraidah MH, Woo HJ. Poly(acrylamide-co-acrylic acid) gel polymer electrolyte incorporating with water-soluble sodium sulfide salt for quasi-solid-state quantum dot-sensitized solar cell. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320902232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Rapid decay of photoanode, leakage from sealant, and evaporation of electrolyte are always the major concerns of quantum dot-sensitized solar cells (QDSCs) based on liquid electrolyte. Subsequently, gel polymer electrolyte (GPE) appears as an attractive solution in addition to lower cost, lighter weight, and flexibility. Poly(acrylamide- co-acrylic acid) (PAAm-PAA) is of special interest to act as a polymer host to entrap liquid electrolyte because it provides high transparency, good gelatinizing properties, and excellent compatibility with the liquid electrolyte. In this work, the electrical and transport properties of PAAm-PAA GPE incorporating with water-soluble sodium sulfide were characterized by impedance spectroscopy. An increment of ionic conductivity was observed with the incorporation of ethylene carbonate (EC) and potassium chloride (KCl). The highest room temperature ionic conductivity of PAAm-PAA GPE is 70.82 mS·cm−1. QDSC based on PAAm-PAA GPE with the composition of 1.3 wt% of KCl, 0.9 wt% of EC, 55.3 wt% of PAAm-PAA, 38.5 wt% of sodium sulfide, and 4.0 wt% of sulfur can present up to 1.80% of light-to-electricity conversion efficiency.
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Affiliation(s)
- YC Lee
- Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - MH Buraidah
- Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - HJ Woo
- Centre for Ionics University of Malaya, Department of Physics, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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17
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Affiliation(s)
- YC Lee
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
| | - NY Pan
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
| | - HF Chan
- Diagnostic Radiology Department, Princess Margaret Hospital, Laichikok, Hong Kong
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18
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Bak G, Choi JH, Jang HI, Jang JS, Jeon SH, Joo KK, Ju K, Jung DE, Kim JG, Kim JH, Kim JY, Kim SB, Kim SY, Kim W, Kwon E, Lee DH, Lee HG, Lee YC, Lim IT, Moon DH, Pac MY, Park YS, Rott C, Seo H, Seo JW, Seo SH, Shin CD, Yang JY, Yoo J, Yu I. Fuel-Composition Dependent Reactor Antineutrino Yield at RENO. Phys Rev Lett 2019; 122:232501. [PMID: 31298906 DOI: 10.1103/physrevlett.122.232501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 05/16/2019] [Indexed: 06/10/2023]
Abstract
We report a fuel-dependent reactor electron antineutrino (ν[over ¯]_{e}) yield using six 2.8 GW_{th} reactors in the Hanbit nuclear power plant complex, Yonggwang, Korea. The analysis uses 850 666 ν[over ¯]_{e} candidate events with a background fraction of 2.0% acquired through inverse beta decay (IBD) interactions in the near detector for 1807.9 live days from August 2011 to February 2018. Based on multiple fuel cycles, we observe a fuel ^{235}U dependent variation of measured IBD yields with a slope of (1.51±0.23)×10^{-43} cm^{2}/fission and measure a total average IBD yield of (5.84±0.13)×10^{-43} cm^{2}/fission. The hypothesis of no fuel-dependent IBD yield is ruled out at 6.6σ. The observed IBD yield variation over ^{235}U isotope fraction does not show significant deviation from the Huber-Mueller (HM) prediction at 1.3 σ. The measured fuel-dependent variation determines IBD yields of (6.15±0.19)×10^{-43} and (4.18±0.26)×10^{-43} cm^{2}/fission for two dominant fuel isotopes ^{235}U and ^{239}Pu, respectively. The measured IBD yield per ^{235}U fission shows the largest deficit relative to the HM prediction. Reevaluation of the ^{235}U IBD yield per fission may mostly solve the reactor antineutrino anomaly (RAA) while ^{239}Pu is not completely ruled out as a possible contributor to the anomaly. We also report a 2.9 σ correlation between the fractional change of the 5 MeV excess and the reactor fuel isotope fraction of ^{235}U.
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Affiliation(s)
- G Bak
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J H Choi
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H I Jang
- Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - S H Jeon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K K Joo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - K Ju
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - D E Jung
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J G Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J Y Kim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - S B Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - S Y Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - W Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - E Kwon
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - D H Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H G Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y C Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - I T Lim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - D H Moon
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - M Y Pac
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - Y S Park
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J W Seo
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - C D Shin
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J Y Yang
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J Yoo
- Institute for Basic Science, Daejeon 34047, Korea
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - I Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
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19
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Lee YC, Chiu CW. Immobilization and 3D Hot-Junction Formation of Gold Nanoparticles on Two-Dimensional Silicate Nanoplatelets as Substrates for High-Efficiency Surface-Enhanced Raman Scattering Detection. Nanomaterials (Basel) 2019; 9:E324. [PMID: 30823691 PMCID: PMC6473534 DOI: 10.3390/nano9030324] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 02/19/2019] [Accepted: 02/20/2019] [Indexed: 11/23/2022]
Abstract
We synthesize a high-efficiency substrate for surface-enhanced Raman scattering (SERS) measurements, which is composed of gold nanoparticles (AuNPs) on two-dimensional silicate nanoplatelets acting as an inorganic stabilizer, via the in-situ reduction of hydrogen tetrachloroaurate (III) by sodium citrate in an aqueous solution. Silicate platelets of ~1-nm thickness and various sizes, viz. laponite (50 nm), sodium montmorillonite (Na⁺⁻MMT, 100 nm), and mica (500 nm), are used to stabilize the AuNPs (Au@silicate), which are formed with uniform diameters ranging between 25 and 30 nm as confirmed by transmission electron microscopy (TEM). In particular, the laponite SERS substrate can be used in biological, environmental, and food safety applications to measure small molecules such as DNA (adenine molecule), dye (Direct Blue), and herbicide (paraquat) as it shows high detection sensitivity with a detection limit of 10-9 M for adenine detection. These highly sensitive SERS substrates, with their three-dimensional hot-junctions formed with AuNPs and two-dimensional silicate nanoplatelets, allow the highly efficient detection of organic molecules. Therefore, these Au@silicate nanohybrid substrates have great potential in biosensor technology because of their environmentally-friendly and simple fabrication process, high efficiency, and the possibility of rapid detection.
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Affiliation(s)
- Yen-Chen Lee
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Chih-Wei Chiu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
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20
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Bak G, Choi JH, Jang HI, Jang JS, Jeon SH, Joo KK, Ju K, Jung DE, Kim JG, Kim JH, Kim JY, Kim SB, Kim SY, Kim W, Kwon E, Lee DH, Lee HG, Lee YC, Lim IT, Moon DH, Pac MY, Park YS, Rott C, Seo H, Seo JW, Seo SH, Shin CD, Yang JY, Yoo J, Yu I. Measurement of Reactor Antineutrino Oscillation Amplitude and Frequency at RENO. Phys Rev Lett 2018; 121:201801. [PMID: 30500262 DOI: 10.1103/physrevlett.121.201801] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/13/2018] [Indexed: 06/09/2023]
Abstract
The RENO experiment reports more precisely measured values of θ_{13} and |Δm_{ee}^{2}| using ∼2200 live days of data. The amplitude and frequency of reactor electron antineutrino (ν[over ¯]_{e}) oscillation are measured by comparing the prompt signal spectra obtained from two identical near and far detectors. In the period between August 2011 and February 2018, the far (near) detector observed 103 212 (850 666) ν[over ¯]_{e} candidate events with a background fraction of 4.8% (2.0%). A clear energy and baseline dependent disappearance of reactor ν[over ¯]_{e} is observed in the deficit of the measured number of ν[over ¯]_{e}. Based on the measured far-to-near ratio of prompt spectra, we obtain sin^{2}2θ_{13}=0.0896±0.0048(stat)±0.0047(syst) and |Δm_{ee}^{2}|=[2.68±0.12(stat)±0.07(syst)]×10^{-3} eV^{2}.
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Affiliation(s)
- G Bak
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J H Choi
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - H I Jang
- Department of Fire Safety, Seoyeong University, Gwangju 61268, Korea
| | - J S Jang
- GIST College, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
| | - S H Jeon
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - K K Joo
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - K Ju
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - D E Jung
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J G Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J H Kim
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - J Y Kim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - S B Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - S Y Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - W Kim
- Department of Physics, Kyungpook National University, Daegu 41566, Korea
| | - E Kwon
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - D H Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - H G Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - Y C Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - I T Lim
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - D H Moon
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - M Y Pac
- Institute for High Energy Physics, Dongshin University, Naju 58245, Korea
| | - Y S Park
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - C Rott
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J W Seo
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
| | - S H Seo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - C D Shin
- Institute for Universe and Elementary Particles, Chonnam National University, Gwangju 61186, Korea
| | - J Y Yang
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - J Yoo
- Institute for Basic Science, Daejeon 34047, Korea
- Department of Physics, KAIST, Daejeon 34141, Korea
| | - I Yu
- Department of Physics, Sungkyunkwan University, Suwon 16419, Korea
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21
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Lee YC, Kwan HH, Wong T, Pan NY, Lai HY, Ma KF. Self-inflicted transorbital brain injury by chopsticks in a patient with acute psychosis. Hong Kong Med J 2018; 23:313-4. [PMID: 28572523 DOI: 10.12809/hkmj154644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Y C Lee
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - H H Kwan
- Division of Neurology, Department of Medicine, Princess Margaret Hospital, Laichikok, Hong Kong
| | - T Wong
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - N Y Pan
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - H Y Lai
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
| | - K F Ma
- Department of Radiology, Princess Margaret Hospital, Laichikok, Hong Kong
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22
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Lu CK, Lee YC, Sun PL, Liang CL, Liliang PC. Life-Threatening Bleeding from the Pubic Branch of the Inferior Epigastric Artery after Pubic Ramus Fracture. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791001700411] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Isolated pubic ramus fracture with concurrent life-threatening bleeding caused by injury to the inferior epigastric artery (IEA) or its branches has rarely been reported and can frequently be overlooked. This paper reports two cases of isolated pubic ramus fracture with concomitant injury to the pubic branch of the IEA, causing serious bleeding and hemodynamic instability. Pelvic angiography showed leakage of contrast from the pubic branch of the IEA. The complication in both cases was successfully treated with transcatheter arterial embolisation.
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Affiliation(s)
- CK Lu
- E-Da Hospital, Department of Orthopedics, I-Shou University, No. 1, Yi-Da Road, Jiau-Shu Tsuen, Yan-Chau Shiang, Kaohsiung County, 824, Taiwan
| | - YC Lee
- E-Da Hospital, Department of Radiology, I-Shou University, No. 1, Yi-Da Road, Jiau-Shu Tsuen, Yan-Chau Shiang, Kaohsiung County, 824, Taiwan
| | - PL Sun
- E-Da Hospital, Department of Radiology, I-Shou University, No. 1, Yi-Da Road, Jiau-Shu Tsuen, Yan-Chau Shiang, Kaohsiung County, 824, Taiwan
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23
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Chen PY, Chen TY, Lee YC, Liliang PC. Kernohan-Woltman Notch Phenomenon Caused by Acute Traumatic Subdural Haematoma. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791402100204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 27-year-old man suffered from right hemiparesis after a closed head injury. Computed tomography (CT) revealed a right hemisphere subdural haematoma with midline structure shifted to the left. The CT finding was believed to be mislabeled because the site of haematoma did not correlate with an ipsilateral hemiparesis. Magnetic resonance imaging revealed a right transtentorial uncal herniation and a small lesion within left cerebral peduncle, suggesting Kernohan-Woltman notch phenomenon (KWNP). KWNP has been rarely seen in patients with acute traumatic subdural haemorrhage. Anatomical small maximum tentorial notch width is the possible anatomical factor predisposing our patient to this phenomenon. (Hong Kong j.emerg.med. 2014;21:116-119)
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Affiliation(s)
| | | | - YC Lee
- E-Da Hospital, I-Shou University, Department of Radiology, Kaohsiung, Taiwan
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24
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Lee YC, Kwon OE, Park JM, Eun YG. Do laryngoscopic findings reflect the characteristics of reflux in patients with laryngopharyngeal reflux? Clin Otolaryngol 2017; 43:137-143. [PMID: 28605121 DOI: 10.1111/coa.12914] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/04/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To analyse the association between 24-hour multichannel intraluminal impedance-pH (24-h MII-pH) parameters and each item of the reflux finding score (RFS) to determine whether the laryngoscopic findings of the RFS could reflect the characteristics of reflux in patients with laryngopharyngeal reflux (LPR). STUDY DESIGN Prospective cohort study. SETTINGS Tertiary care referral medical centre. PARTICIPANTS Patients complaining of LPR symptoms were evaluated via a 24-hour MII-pH. Among them, 99 patients whose LPR was confirmed via 24-hour MII-pH were enrolled in this study. MAIN OUTCOME MEASURES Correlations between RFS ratings and 24-hour MII-pH parameters were evaluated and compared between patients with or without each laryngoscopic finding used in the RFS. RESULTS Subglottic oedema had a statistically significant positive correlation with number of non-acid LPR and non-acid full column reflux events. Ventricular obliteration and posterior commissure hypertrophy showed a significant correlation with non-acid exposure time and total reflux exposure time. We also found a significant correlation between granuloma/granulation score and number of acid LPR events. The numbers of non-acid LPR and full column reflux events in patients with subglottic oedema were significantly higher than those without subglottic oedema. CONCLUSION Among the laryngoscopic findings used in the RFS, subglottic oedema is specific for non-acid reflux episodes, and granuloma/granulation is specific for acid reflux episodes.
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Affiliation(s)
- Y C Lee
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
| | - O E Kwon
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
| | - J M Park
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
| | - Y G Eun
- Department of Otolaryngology-Head & Neck Surgery, School of Medicine, Kyung Hee University, Seoul, Korea
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25
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Kim YJ, Lee YC, Eun YG, Lee JW. Re: Segmental mandibulectomies made easier: a simple drill guide. Br J Oral Maxillofac Surg 2017. [PMID: 28625411 DOI: 10.1016/j.bjoms.2017.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Y J Kim
- Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Y C Lee
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - Y G Eun
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - J W Lee
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Kyung Hee University, Seoul, Republic of Korea.
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26
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Chiu CW, Lee YC, Ou GB, Cheng CC. Controllable 3D Hot-Junctions of Silver Nanoparticles Stabilized by Amphiphilic Tri-block Copolymer/Graphene Oxide Hybrid Surfactants for Use as Surface-Enhanced Raman Scattering Substrates. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03504] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chih-Wei Chiu
- Department
of Materials Science and Engineering, and ‡Graduate Institute of Applied Science
and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Yen-Chen Lee
- Department
of Materials Science and Engineering, and ‡Graduate Institute of Applied Science
and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Gang-Bo Ou
- Department
of Materials Science and Engineering, and ‡Graduate Institute of Applied Science
and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chih-Chia Cheng
- Department
of Materials Science and Engineering, and ‡Graduate Institute of Applied Science
and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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27
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Chang JS, Kim KH, Yoon HI, Hyung WJ, Rha SY, Kim HS, Lee YC, Lim JS, Noh SH, Koom WS. Locoregional relapse after gastrectomy with D2 lymphadenectomy for gastric cancer. Br J Surg 2017; 104:877-884. [PMID: 28245053 DOI: 10.1002/bjs.10502] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/09/2016] [Accepted: 01/09/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Risk for and site of locoregional relapse have not been well studied in patients undergoing gastrectomy with D2 lymphadenectomy for gastric cancer. METHODS Patients who had undergone gastrectomy with D2 lymphadenectomy for gastric cancer between 2004 and 2007 were identified from an institutional database. The locoregional relapse rate was estimated by competing risk analysis, and risk groups were derived according to locoregional relapse risk using recursive partitioning analysis (RPA). The locations of nodal relapses were evaluated according to Japanese Classification of Gastric Carcinoma criteria. RESULTS Some 2618 patients were included. With a median follow-up of 78·0 (range 28·5-122·6) months, relapse was diagnosed in 471 of 2618 patients (18·0 per cent). The cumulative incidence of locoregional relapse at 5 years was 8·5 (95 per cent c.i. 7·4 to 9·6) per cent. The 5-year locoregional recurrence rates for high-risk (N3), intermediate-risk (N1-2) and low-risk (N0) groups were 32·4, 12·3 and 1·7 per cent respectively (P < 0·001). Among patients with regional relapse, 90·4 per cent had involvement outside the D2 dissected area, and the most commonly involved site was station 16b1. This pattern was maintained in the RPA risk groups (P = 0·329). CONCLUSION Locoregional relapse at 5 years after gastrectomy with D2 lymphadenectomy was 8·5 per cent, and was most often seen outside the D2 dissected area.
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Affiliation(s)
- J S Chang
- Department of Radiation Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - K H Kim
- Department of Radiation Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - H I Yoon
- Department of Radiation Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - W J Hyung
- Department of Surgery, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Rha
- Division of Medical Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - H S Kim
- Division of Medical Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - Y C Lee
- Division of Gastroenterology, Department of Internal Medicine, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - J S Lim
- Department of Radiology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - S H Noh
- Department of Surgery, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
| | - W S Koom
- Department of Radiation Oncology, Yonsei Cancer Centre, Yonsei University College of Medicine, Seoul, Korea
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28
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Mize B, Salame G, Maglantay R, Chen NN, Lee YC. Rapidly progressing central-type primitive neuroectodermal tumor of the ovary: a case report. EUR J GYNAECOL ONCOL 2017; 38:290-293. [PMID: 29953798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Primitive neuroectodermal tumors (PNET) belong to a group of highly malignant tumors comprised of small round cells of neu- roectodermal origin. These tumors can be either of peripheral-type (Ewing family tumors/PNET) or central-type. A number of case re- ports have described PNET involving the gynecologic organs and the prognosis is generally poor. The authors describe the case of a 53-year-old woman with a rapidly progressing central-type PNET of the ovary.
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29
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Marahatta A, Baek IH, Pyo JS, Bhandary B, Kim HK, Bang JS, Yoon H, Rhew KY, Chai OH, Lee YC. Pharmacokinetics and Bronchopulmonary Disposition of PI3KDelta Inhibitor IC87114 after Intratracheal Administration in a Severe Asthma Model. Indian J Pharm Sci 2017. [DOI: 10.4172/pharmaceutical-sciences.1000317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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30
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Huang CW, Lee YC. Checklist of the family Epitoniidae (Mollusca: Gastropoda) in Taiwan with description of a new species and some new records. Biodivers Data J 2016:e5653. [PMID: 27660525 PMCID: PMC5018113 DOI: 10.3897/bdj.4.e5653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 07/05/2016] [Indexed: 11/13/2022] Open
Abstract
Background The family Epitoniidae is a group of small to medium-sized gastropods and occurs globally from the intertidal zone to abyssal seabeds. There are 101 epitoniid species currently recorded from Taiwan. New information Based on our investigations of seashores and fishing ports of Taiwan, a new species and 12 new records of Epitoniidae species are reported. Of the 12 new records, four are new to the East Asian region and two are new records to the Indo-Pacific region. Our results increase the number of Taiwanese Epitoniidae from 101 species to 114 species.
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Affiliation(s)
| | - Yen-Chen Lee
- Biodiversity Research Center, Academia Sinica, Taipei, Taiwan
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31
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Rhee K, Kim JH, Jung DH, Han JW, Lee YC, Lee SK, Shin SK, Park JC, Chung HS, Park JJ, Youn YH, Park H. Self-expandable metal stents for malignant esophageal obstruction: a comparative study between extrinsic and intrinsic compression. Dis Esophagus 2016; 29:224-8. [PMID: 25708695 DOI: 10.1111/dote.12325] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-expandable metal stents (SEMSs) are effective for malignant esophageal obstruction, but usefulness of SEMSs in extrinsic lesions is yet to be elucidated. This study is aimed at evaluating the clinical usefulness of SEMSs in the extrinsic compression compared with intrinsic. A retrospective review was conducted for 105 patients (intrinsic, 85; extrinsic, 20) with malignant esophageal obstruction who underwent endoscopic SEMSs placement. Technical and clinical success rates were evaluated and clinical outcomes were compared between extrinsic and intrinsic group. Extrinsic group was mostly pulmonary origin. Overall technical and clinical success rate was 100% and 91%, respectively, without immediate complications. Extrinsic and intrinsic group did not differ significantly in clinical success rate. The median stent patency time was 131.3 ± 85.8 days in intrinsic group while that of extrinsic was 54.6 ± 45.1 due to shorter survival after stent insertion. The 4-, 8-, and 12-week patency rates were 90.5%, 78.8%, and 64.9% respectively in intrinsic group, while stents of extrinsic group remained patent until death. Uncovered, fully covered, and double-layered stent were used evenly and the types did not influence patency in both groups. In conclusion, esophageal SEMSs can safely and effectively be used for malignant extrinsic compression as well as intrinsic.
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Affiliation(s)
- K Rhee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - J-H Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - D H Jung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J W Han
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Y C Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - S K Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - S K Shin
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J C Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - H S Chung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J J Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Y H Youn
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - H Park
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.,Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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32
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Oh CY, Kim DY, Jin SM, Kim TK, Kim JP, Jeong ED, Hyun MH, Sim EK, Lee YC, Jin JS. Self-Assembled Silica Nanostructures: Simultaneous Discrimination of Handedness, Pitch and Diameter of Helical Silica Nanotubes. J Nanosci Nanotechnol 2016; 16:1988-1992. [PMID: 27433714 DOI: 10.1166/jnn.2016.11956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The left- and right-handed helical silica nanostructures were obtained with the aid of organic templates, the formation of the nanostructures might follow a co-operation self-assembly mechanism. The chirality of the organogel self-assemblies was successfully transcribed in to the silica. The helical pitch and pore size of the silica nanotubes sensitively depended on the optical purity of the neutral gelator in the reaction mixtures.
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33
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Chen HH, Wang TC, Lee YC, Shen PT, Chang JY, Yeh TK, Huang CH, Chang HH, Cheng SY, Lin CY, Shih C, Chen CT, Liu WM, Chen CH, Kuo CC. Novel Nrf2/ARE Activator, trans-Coniferylaldehyde, Induces a HO-1-Mediated Defense Mechanism through a Dual p38α/MAPKAPK-2 and PK-N3 Signaling Pathway. Chem Res Toxicol 2015; 28:1681-92. [DOI: 10.1021/acs.chemrestox.5b00085] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Huang-Hui Chen
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
- Department
of Obstetrics and Gynecology, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Tai-Chi Wang
- Department
of Pharmacy, Tajen University, Pingtung 90741, Taiwan
| | - Yen-Chen Lee
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Pei-Ting Shen
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Jang-Yang Chang
- National
Institute of Cancer Research, National Health Research Institutes, Tainan 70456, Taiwan
- Institute
of Clinical Pharmacy and Pharmaceutical Sciences, National Cheng Kung University Medical College, Tainan 70101, Taiwan
| | - Teng-Kuang Yeh
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Chih-Hsiang Huang
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Hsin-Huei Chang
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Shu-Ying Cheng
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Chin-Yu Lin
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Chuan Shih
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Chiung-Tong Chen
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
| | - Wei-Min Liu
- Department
of Obstetrics and Gynecology, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Department
of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Hui Chen
- Department
of Obstetrics and Gynecology, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Department
of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Ching-Chuan Kuo
- Institute
of Biotechnology and Pharmaceutical Research, National Health Research Institutes, Zhunan 35053, Taiwan
- Institute
of Clinical Pharmacy and Pharmaceutical Sciences, National Cheng Kung University Medical College, Tainan 70101, Taiwan
- Graduate
Program for Aging, China Medical University, Taichung 40402, Taiwan
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34
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Liu CC, Lee YC, Tsai VFS, Cheng KH, Wu WJ, Bao BY, Huang CN, Yeh HC, Tsai CC, Wang CJ, Huang SP. The interaction of serum testosterone levels and androgen receptor CAG repeat polymorphism on the risk of erectile dysfunction in aging Taiwanese men. Andrology 2015. [PMID: 26216079 DOI: 10.1111/andr.12068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Testosterone has been found to play important roles in men's sexual function. However, the effects of testosterone can be modulated by androgen receptor (AR) CAG repeat polymorphism. It could also contribute to the risk of erectile dysfunction (ED). The aim of this study is to evaluate the interaction of serum testosterone levels and AR CAG repeat polymorphism on the risk of ED in aging Taiwanese men. This cross-sectional data of Taiwanese men older than 40 years were collected from a free health screening held between August 2010 and August 2011 in Kaohsiung city, Taiwan. All participants completed a health questionnaires included five-item version of the International Index of Erectile Function (IIEF-5) and the International Prostate Symptoms Score, received a detailed physical examination and provided 20 cm3 whole blood samples for biochemical and genetic evaluation. The IIEF-5 was used to evaluate ED. Serum albumin, total testosterone (TT), and sex hormone-binding globulin levels were measured. Free testosterone level was calculated. AR gene CAG repeat polymorphism was determined by direct sequencing. Finally, 478 men with the mean age of 55.7 ± 4.8 years were included. When TT levels were above 330 ng/dL, the effect of testosterone level on erectile function seemed to reach a plateau and a significantly negative correlation between AR CAG repeat length and the score of IIEF-5 was found (r = -0.119, p = 0.034). After adjusting for other covariates, the longer AR CAG repeat length was still an independent risk factor for ED in subjects with TT above 330 ng/dL (p = 0.006), but not in TT of 330 ng/dL or below. In conclusion, both serum testosterone levels and AR CAG repeat polymorphism can influence erectile function concomitantly. In subjects with normal TT concentration, those with longer AR CAG repeat lengths have a higher risk of developing ED.
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Affiliation(s)
- C C Liu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Depratment of Urology, Pingtung Hospital, Ministry of Health and Welfare, Executive Yuan, Pingtung, Taiwan
| | - Y C Lee
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - V F S Tsai
- Department of Urology, Ten-Chan General Hospital, Taoyuan, Taiwan
| | - K H Cheng
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - W J Wu
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Municipal Hsiao-Kang Hospital, Kaohsiung, Taiwan
| | - B Y Bao
- Department of Pharmacy, China Medical University, Taichung, Taiwan
| | - C N Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - H C Yeh
- Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - C C Tsai
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - C J Wang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - S P Huang
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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35
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Goh SY, Ang SB, Bee YM, Chen YT, Gardner DS, Ho ET, Adaikan K, Lee YC, Lee CH, Lim FS, Lim HB, Lim SC, Seow J, Soh AW, Sum CF, Tai ES, Thai AC, Wong TY, Yap F. Ministry of Health Clinical Practice Guidelines: Diabetes Mellitus. Singapore Med J 2015; 55:334-47. [PMID: 25017409 DOI: 10.11622/smedj.2014079] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The Ministry of Health (MOH) have updated the clinical practice guidelines on Diabetes Mellitus to provide doctors and patients in Singapore with evidence-based treatment for diabetes mellitus. This article reproduces the introduction and executive summary (with recommendations from the guidelines) from the MOH clinical practice guidelines on Diabetes Mellitus, for the information of SMJ readers. Chapters and page numbers mentioned in the reproduced extract refer to the full text of the guidelines, which are available from the Ministry of Health website: http://www.moh.gov.sg/content/moh_web/healthprofessionalsportal/doctors/guidelines/cpg_medical.html. The recommendations should be used with reference to the full text of the guidelines. Following this article are multiple choice questions based on the full text of the guidelines.
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Affiliation(s)
- S Y Goh
- Department of Endocrinology, Singapore General Hospital, Outram Road, Singapore 169608.
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Ma Y, Tucker KL, Smith CE, Lee YC, Huang T, Richardson K, Parnell LD, Lai CQ, Young KL, Justice AE, Shao Y, North KE, Ordovás JM. Lipoprotein lipase variants interact with polyunsaturated fatty acids for obesity traits in women: replication in two populations. Nutr Metab Cardiovasc Dis 2014; 24:1323-1329. [PMID: 25156894 PMCID: PMC4356006 DOI: 10.1016/j.numecd.2014.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 07/04/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Lipoprotein lipase (LPL) is a candidate gene for obesity based on its role in triglyceride hydrolysis and the partitioning of fatty acids towards storage or oxidation. Whether dietary fatty acids modify LPL associated obesity risk is unknown. METHODS AND RESULTS We examined five single nucleotide polymorphisms (SNPs) (rs320, rs2083637, rs17411031, rs13702, rs2197089) for potential interaction with dietary fatty acids for obesity traits in 1171 participants (333 men and 838 women, aged 45-75 y) of the Boston Puerto Rican Health Study (BPRHS). In women, SNP rs320 interacted with dietary polyunsaturated fatty acids (PUFA) for body mass index (BMI) (P = 0.002) and waist circumference (WC) (P = 0.001) respectively. Higher intake of PUFA was associated with lower BMI and WC in homozygotes of the major allele (TT) (P = 0.01 and 0.005) but not in minor allele carriers (TG and GG). These interactions were replicated in an independent population, African American women of the Atherosclerosis Risk in Communities (ARIC) study (n = 1334). CONCLUSION Dietary PUFA modulated the association of LPL rs320 with obesity traits in two independent populations. These interactions may be relevant to the dietary management of obesity, particularly in women.
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Affiliation(s)
- Y Ma
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - K L Tucker
- Clinical Laboratory and Nutritional Sciences, University of Massachusetts, Lowell, MA, USA
| | - C E Smith
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - Y C Lee
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - T Huang
- Department of Nutrition, Harvard School of Public Health, Boston, MA, USA
| | - K Richardson
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - L D Parnell
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - C Q Lai
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - K L Young
- Department of Epidemiology and Carolina Population Center, University of North Carolina, Chapel Hill, NC, USA
| | - A E Justice
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - Y Shao
- Department of Epidemiology, University of North Carolina, Chapel Hill, NC, USA
| | - K E North
- Department of Epidemiology and Carolina Center for Genome Sciences, University of North Carolina, Chapel Hill, NC, USA
| | - J M Ordovás
- Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA; Department of Epidemiology, Centro Nacional Investigaciones Cardiovasculares (CNIC), Madrid, Spain; Instituto Madrileño de Estudios Avanzados en Alimentación (IMDEA-FOOD), Madrid, Spain.
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Chen SY, Collard HR, Yeh WS, Li Q, Lee YC, Wang A, Raghu G. An Analysis of Us Medicare Beneficiaries: Burden of Direct Medical Costs in Patients With Idiopathic Pulmonary Fibrosis. Value Health 2014; 17:A592. [PMID: 27202026 DOI: 10.1016/j.jval.2014.08.2034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - H R Collard
- University of California San Francisco, San Francisco, CA, USA
| | - W S Yeh
- Biogen Idec, Cambridge, MA, USA
| | - Q Li
- Evidera, Lexington, MA, USA
| | | | - A Wang
- Evidera, Lexington, MA, USA
| | - G Raghu
- University of Washington, Seattle, WA, USA
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Kim SR, Kim DI, Kim SH, Lee H, Lee KS, Cho SH, Lee YC. NLRP3 inflammasome activation by mitochondrial ROS in bronchial epithelial cells is required for allergic inflammation. Cell Death Dis 2014. [PMID: 25356867 DOI: 10.1038/cddis.2014.460.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abnormality in mitochondria has been suggested to be associated with development of allergic airway disorders. In this study, to evaluate the relationship between mitochondrial reactive oxygen species (ROS) and NLRP3 inflammasome activation in allergic asthma, we used a newly developed mitochondrial ROS inhibitor, NecroX-5. NecroX-5 reduced the increase of mitochondrial ROS generation in airway inflammatory cells, as well as bronchial epithelial cells, NLRP3 inflammasome activation, the nuclear translocation of nuclear factor-κB, increased expression of various inflammatory mediators and pathophysiological features of allergic asthma in mice. Finally, blockade of IL-1β substantially reduced airway inflammation and hyperresponsiveness in the asthmatic mice. These findings suggest that mitochondrial ROS have a critical role in the pathogenesis of allergic airway inflammation through the modulation of NLRP3 inflammasome activation, providing a novel role of airway epithelial cells expressing NLRP3 inflammasome as an immune responder.
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Affiliation(s)
- S R Kim
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Deokjin-gu, Jeonju, South Korea
| | - D I Kim
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Deokjin-gu, Jeonju, South Korea
| | - S H Kim
- Department of Product Strategy and Development, LG Life Sciences Ltd, Seoul, Korea
| | - H Lee
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Deokjin-gu, Jeonju, South Korea
| | - K S Lee
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Deokjin-gu, Jeonju, South Korea
| | - S H Cho
- Division of Allergy-Immunology, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - Y C Lee
- Department of Internal Medicine, Research Center for Pulmonary Disorders, Chonbuk National University Medical School, Research Institute of Clinical Medicine of Chonbuk National University - Biomedical Research Institute of Chonbuk National University Hospital, Deokjin-gu, Jeonju, South Korea
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Huang CW, Lee YC, Lin SM, Wu WL. Taxonomic revision of Aegistasubchinensis (Möllendorff, 1884) (Stylommatophora, Bradybaenidae) and a description of a new species of Aegista from eastern Taiwan based on multilocus phylogeny and comparative morphology. Zookeys 2014:31-55. [PMID: 25349506 PMCID: PMC4205739 DOI: 10.3897/zookeys.445.7778] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 09/07/2014] [Indexed: 11/12/2022] Open
Abstract
Aegistasubchinensis (Möllendorff, 1884) is a widely distributed land snail species with morphological variation and endemic to Taiwan. Three genetic markers (partial sequence of the mitochondrial cytochrome c oxidase subunit I [COI], the 16S rDNA and the nuclear internal transcribed spacer 2 [ITS2]) were analysed to infer phylogenetic relationships and genetic divergence of closely related species of the genus Aegista, Aegistavermis (Reeve, 1852) and Aegistaoculus (Pfeiffer, 1850). A new species from Aegistasubchinensis has been recognized on the basis of phylogenetic and morphological evidences. The nominal new species, Aegistadiversifamiliasp. n. is distinguished from Aegistasubchinensis (Möllendorff, 1884) by its larger shell size, aperture and apex angle; wider umbilicus and flatter shell shape. The northernmost distribution of Aegistadiversifamiliasp. n. is limited by the Lanyang River, which is presumed to mark the geographic barrier between Aegistadiversifamiliasp. n. and Aegistasubchinensis.
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Affiliation(s)
- Chih-Wei Huang
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 11677 Taiwan
| | - Yen-Chen Lee
- Biodiversity Research Center, Academia Sinica, 128 Academia Road Sec. 2, Nankang Taipei 11529 Taiwan
| | - Si-Min Lin
- Department of Life Science, National Taiwan Normal University, 88 Ting-Chow Rd, Sec 4, Taipei, 11677 Taiwan
| | - Wen-Lung Wu
- Biodiversity Research Center, Academia Sinica, 128 Academia Road Sec. 2, Nankang Taipei 11529 Taiwan
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Lee YC, Hong IK, Na SY, Eun YG. Evaluation of salivary function in patients with burning mouth syndrome. Oral Dis 2014; 21:308-13. [DOI: 10.1111/odi.12270] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 05/27/2014] [Accepted: 06/13/2014] [Indexed: 11/28/2022]
Affiliation(s)
- YC Lee
- Department of Otolaryngology-Head and Neck Surgery; Kyung Hee University School of Medicine; Seoul Korea
| | - IK Hong
- Department of Nuclear Medicine; Kyung Hee University School of Medicine; Seoul Korea
| | - SY Na
- Department of Otolaryngology-Head and Neck Surgery; Kyung Hee University School of Medicine; Seoul Korea
| | - YG Eun
- Department of Otolaryngology-Head and Neck Surgery; Kyung Hee University School of Medicine; Seoul Korea
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Lee H, Chung H, Park JC, Shin SK, Lee SK, Lee YC. Heterogeneity of mucosal mast cell infiltration in subgroups of patients with esophageal chest pain. Neurogastroenterol Motil 2014; 26:786-93. [PMID: 24602134 DOI: 10.1111/nmo.12325] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Accepted: 01/30/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Although there is growing evidence that an increase in mucosal mast cells (MMCs) in the small and large intestine is associated with visceral hypersensitivity, few studies have evaluated MMCs in humans with esophageal symptoms. The aim of this study was to investigate esophageal MMC distribution in patients with non-cardiac chest pain (NCCP) and to examine the association between the number of gut MMCs and other functional gastrointestinal disorders. METHODS Forty-two consecutive NCCP patients and 10 healthy controls completed a questionnaire for bowel symptoms, chest pain intensity score, and psychologic depression. Esophageal, duodenal, and rectal MMCs were identified immunohistochemically and quantified by image analysis. KEY RESULTS Numbers of MMCs were significantly higher in NCCP patients vs healthy controls (11.8 ± 5.6 vs 7.6 ± 3.7 MMCs/high-power field, p = 0.026). In comparison of subgroups classified by 24-h impedance-pH monitoring, esophageal MMC counts were highest in the hypersensitive esophagus group (p < 0.01) and were also significantly increased in the functional chest pain group (p < 0.05). A positive correlation between esophageal and duodenal MMC counts was observed in patients with functional dyspepsia (FD; Spearman ρ = 0.604, p = 0.037). In particular, patients with clinical overlap with irritable bowel syndrome showed a strong positive correlation between esophageal and rectal MMC numbers (Spearman ρ = 0.857, p = 0.010). CONCLUSIONS & INFERENCES Among NCCP patients, increased MMC infiltration occurs in subgroups with hypersensitive esophagus and functional chest pain. In subpopulations with overlap with FD or irritable bowel syndrome, esophageal MMC counts demonstrated significant positive correlations with duodenal or rectal MMC counts.
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Affiliation(s)
- H Lee
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Park SW, Lee H, Lee HJ, Chung H, Park JC, Shin SK, Lee SK, Lee YC. Esophageal mucosal mast cell infiltration and changes in segmental smooth muscle contraction in noncardiac chest pain. Dis Esophagus 2014; 28:512-9. [PMID: 24766344 DOI: 10.1111/dote.12231] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mast cells release potent mediators that alter enteric nerve and smooth muscle functions and may contribute to the pathogenesis of functional gastrointestinal disorders. The goal of this study was to determine if mucosal mast cell infiltration was associated with smooth muscle segmental changes in esophageal contraction. All patients with noncardiac chest pain (NCCP) were divided into two groups consisting of patients with non-erosive reflux disease or functional chest pain (FCP) according to the results of ambulatory 24 hours esophageal pH monitoring and high-resolution manometry. Pressure-volume (PV) was calculated by multiplying the length of the esophageal segment, duration of the contraction, and mean pressure over the entire space-time box (P mean). Quantification of mast cells was performed in five consecutive nonoverlapping immunostained sections. Spearman correlation analysis showed that the distal segment PV correlated with the mast cell count in all of the patients combined and in patients with FCP with correlation coefficients of 0.509 and 0.436, respectively (P = 0.004 and P = 0.042). Similar findings were observed for the segmental ratio of distal to proximal smooth muscle PV in all patients and in patients with FCP (correlation coefficients 0.566; P = 0.001 and correlation coefficients 0.525; P = 0.012, respectively). Mucosal mast cell infiltration was associated with distal esophageal contraction as a key pathophysiologic factor of NCCP.
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Affiliation(s)
- S W Park
- Department of Internal Medicine, Institute of Gastroenterology, Hallym University College of Medicine, Seoul, Korea.,Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - H Lee
- Division of Gastroenterology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - H J Lee
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - H Chung
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - J C Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - S K Shin
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - S K Lee
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Y C Lee
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Lee MR, Lee GH, Lee HY, Kim DS, Chung MJ, Lee YC, Kim HR, Chae HJ. BAX inhibitor-1-associated V-ATPase glycosylation enhances collagen degradation in pulmonary fibrosis. Cell Death Dis 2014; 5:e1113. [PMID: 24625972 PMCID: PMC3973240 DOI: 10.1038/cddis.2014.86] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/01/2014] [Accepted: 02/06/2014] [Indexed: 12/27/2022]
Abstract
Endoplasmic reticulum (ER) stress is considered one of the pathological mechanisms of idiopathic pulmonary fibrosis (IPF). Therefore, we examined whether an ER stress regulator, Bax inhibitor-1 (BI-1), regulates collagen accumulation, which is both a marker of fibrosis and a pathological mechanism of fibrosis. The presence of BI-1 inhibited the transforming growth factor-β1-induced epithelial-mesenchymal transition of epithelial pulmonary cells and bleomycin-induced pulmonary fibrosis in a mouse model by enhancing collagen degradation, most likely by enhanced activation of the lysosomal V-ATPase through glycosylation. We also found a correlation between post-translational glycosylation of the V-ATPase and its associated chaperone, calnexin, in BI-1-overexpressing cells. BI-1-induced degradation of collagen through lysosomal V-ATPase glycosylation and the involvement of calnexin were confirmed in a bleomycin-induced fibrosis mouse model. These results highlight the regulatory role of BI-1 in IPF and reveal for the first time the role of lysosomal V-ATPase glycosylation in IPF.
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Affiliation(s)
- M-R Lee
- Department of Pharmacology and Institute of Cardiovascular Research, Medical School, Chonbuk National University, Jeonju, Chonbuk, Republic of Korea
| | - G-H Lee
- Department of Pharmacology and Institute of Cardiovascular Research, Medical School, Chonbuk National University, Jeonju, Chonbuk, Republic of Korea
| | - H-Y Lee
- Department of Pharmacology and Institute of Cardiovascular Research, Medical School, Chonbuk National University, Jeonju, Chonbuk, Republic of Korea
| | - D-S Kim
- Department of Pharmacology and Institute of Cardiovascular Research, Medical School, Chonbuk National University, Jeonju, Chonbuk, Republic of Korea
| | - M J Chung
- Department of Pathology, Chonbuk National University Medical School, Jeonju, Chonbuk, Republic of Korea
| | - Y C Lee
- Department of Internal Medicine, Chonbuk National University, Medical School, Jeonju, Chonbuk, Republic of Korea
| | - H-R Kim
- Department of Dental Pharmacology, School of Dentistry, Wonkwang University, Iksan, Chonbuk, Republic of Korea
| | - H-J Chae
- Department of Pharmacology and Institute of Cardiovascular Research, Medical School, Chonbuk National University, Jeonju, Chonbuk, Republic of Korea
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Eun YG, Chung DH, Kim SW, Lee YC, Kim SK, Kwon KH. A Fas-associated via death domain promoter polymorphism (rs10898853, -16C/T) as a risk factor for papillary thyroid cancer. Eur Surg Res 2014; 52:1-7. [PMID: 24434721 DOI: 10.1159/000355878] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 09/23/2013] [Indexed: 01/07/2023]
Abstract
PURPOSE To determine whether a Fas-associated via death domain (FADD) promoter single-nucleotide polymorphism (SNP) is associated with susceptibility to papillary thyroid cancer (PTC) and clinicopathological features of PTC. METHODS To identify a possible association with PTC, 94 patients with PTC and 346 healthy controls were recruited. One promoter SNP (rs10898853, -16C/T) was analyzed by direct sequencing. Multiple logistic regression models (co-dominant, dominant, recessive, and log-additive models) were applied, and odds ratios (ORs), 95% confidence intervals (CIs), and p values were calculated. RESULTS The genotype of the promoter SNP (rs10898853) of FADD was found to be significantly associated with PTC in the co-dominant model 2 (T/T vs. C/C; p = 0.002, OR = 2.80, 95% CI = 1.39-5.65), the recessive model (p = 0.003, OR = 2.21, 95% CI = 1.31-3.71), and the log-additive model (p = 0.002, OR = 1.71, 95% CI = 1.20-2.44). Allele frequency analysis showed that the C allele of rs10898853 was significantly associated with an increased risk of PTC (p = 0.002, OR = 1.67, 95% CI = 1.21-2.32). CONCLUSIONS Our results suggest that the FADD promoter polymorphism is associated with susceptibility to PTC.
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Affiliation(s)
- Y G Eun
- Department of Otolaryngology - Head and Neck Surgery, School of Medicine, Kyung Hee University, Seoul, South Korea
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Lee YC, Kim TH, Eun YG. Routine computerised tomography in patients with acute supraglottitis for the diagnosis of epiglottic abscess: is it necessary?--a prospective, multicentre study. Clin Otolaryngol 2013; 38:142-7. [PMID: 23577882 DOI: 10.1111/coa.12103] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To evaluate the predictive factor of epiglottic abscess and to investigate whether routine computerised tomography (CT) in patients with acute supraglottitis are necessary. DESIGN A prospective and multicentre study. SETTINGS Tertiary care referral medical centre. PARTICIPANTS A total of 202 patients with suspected acute supraglottitis were enrolled. All patients underwent CT to confirm the presence of abscess. MAIN OUTCOME MEASURES The patients' characteristics, symptoms at presentation, laryngoscopic findings of epiglottic swelling and arytenoid swelling by scope classification and initial laboratory finding were analysed. RESULTS Of 202 patients, 158 (78%) had acute supraglottitis and 44 (22%) had epiglottic abscess. There was no significant difference in age between the acute supraglottitis group and the epiglottic abscess group. Men were significantly more frequent in the epiglottic abscess group than females (P = 0.042). When comparing the symptom at presentation, the patients with epiglottic abscess complained of voice change more frequently (P = 0.003). Moderate or severe epiglottic swelling in scope classification was significantly associated with epiglottic abscess (P < 0.001). In logistic regression analysis, voice change [OR = 2.64, 95% CI = 1.29-5.40, P = 0.008] and moderate or severe epiglottic swelling in laryngoscopic findings [OR = 3.94, 95% CI = 1.63-9.53, P = 0.002] were independent predictive factors for epiglottic abscess. The positive predictive values of voice change and moderate or severe epiglottic swelling were 33% and 30%, respectively. The negative predictive values of voice change and moderate or severe epiglottic swelling were 15% and 9%, respectively. CONCLUSIONS Routine CT might be suggested for diagnosis of epiglottic abscess in the patients with acute supraglottitis, because of the poor predictive values of symptoms and signs.
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Affiliation(s)
- Y C Lee
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Seoul, Korea
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Park SW, Choi AR, Lee HJ, Chung H, Park JC, Shin SK, Lee SK, Lee YC, Kim JE, Lee H. The effects of statins on the clinical outcomes of Clostridium difficile infection in hospitalised patients. Aliment Pharmacol Ther 2013; 38:619-27. [PMID: 23888883 DOI: 10.1111/apt.12439] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 05/24/2013] [Accepted: 07/12/2013] [Indexed: 12/21/2022]
Abstract
BACKGROUND An association between exposure to statin drugs and favourable treatment outcomes for various types of infections has been established. AIM To determine the clinical characteristics and treatment outcomes of Clostridium difficile infection (CDI) among hospitalised patients taking statin drugs. METHODS The medical records were reviewed for consecutive in-patients with CDI confirmed by positive toxin assay (A or B), C. difficile culture, or the presence of pseudomembrane on endoscopy. Treatment success was defined as the resolution of diarrhoea within 6 days of therapy. The primary end points were assessed by average symptom recovery time and treatment response (success or failure). RESULTS Among 949 patients, the overall response to metronidazole was 91.9%. The baseline characteristics showed some differences between statin users and statin non-users with respect to mean disease severity score. In the multivariate analysis, successful treatment response was significantly associated with the absence of exposure to proton pump inhibitors (PPIs) (OR = 0.690, 95% CI = 0.513-0.929, P = 0.014) and with exposure to statins (OR = 1.449, 95% CI = 1.015-2.070, P = 0.041). Contrary to the treatment response, univariate and multivariate analyses failed to show that exposure to PPIs or statins affected symptom recovery times. Sixty-day CDI recurrence rates for those patients with statin exposure were significantly lower compared with those patients without statin exposure (3% vs. 7.3%, respectively; RR = 0.393, 95% CI = 0.167-0.926, P = 0.033). CONCLUSION Prior statin exposure in patients with C. difficile infection is associated with a successful response to treatment.
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Affiliation(s)
- S W Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
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Abstract
BACKGROUND IL22RA1 (Interleukin 22 receptor-alpha 1), a member of the class II cytokine receptor family, mediates diverse biologic activities and appears to be important in pathogen defense, wound healing, and tissue reorganization. Polymorphisms in genes encoding inflammatory cytokines are associated with increased cancer risk. AIM The aim of this study was to evaluate the association between the single nucleotide polymorphisms (SNP) in the IL22 and IL22RA1 and papillary thyroid cancer (PTC), and to assess the relationship between the SNP in the IL22 and IL22RA1 and the clinical parameters of PTC. MATERIAL AND METHODS Study enrolled experimental group of 94 PTC patients and 213 controls. PTC patients were grouped and compared for clinical PTC parameters. One promoter SNP of IL22, -429C/T (rs2227485), and one SNP of IL22RA1, Arg518Gly (rs3795299) were analyzed using direct sequencing. Genetic data were analyzed using Helixtree, SNPAnalyzer Pro, SNPStats, and Haploview. RESULTS A SNP in IL22 (rs2227485) was significantly associated with PTC (codominant2 model [C/C vs T/T], odds ratio (OR) 2.39, 95% confidence interval (CI) 1.21-4.71, p=0.012; dominant model, OR 1.89, 95% CI 1.08-3.31, p=0.022). The allele T frequency of rs2227485 in IL22 was also associated with PTC (OR 1.59, 95% CI 1.13-2.25, p=0.009). According to clinical parameters, rs2227485 of IL22 was associated with number of cancers (dominant model, OR 3.03, 95% CI 1.02-9.01, p=0.035). By haplotype analysis, TG was associated with PTC (codominant model, OR 1.52, 95% CI 1.07-2.16, p=0.019; dominant model, OR 1.91, 95% CI 1.13- 3.24, p=0.015). Genotype and allele analysis of rs3795299 in IL22RA1 showed no significant differences between PTC patients and controls. CONCLUSION The rs2227485 SNP in IL22 might be associated with the risk and the multifocality of PTC.
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Affiliation(s)
- Y G Eun
- Department of Otolaryngology-Head and Neck Surgery, Kandong Sacred Heart Hospital, Hallym University School of Medicine, 445 Gil-Dong, Kangdong-Gu, Seoul 134-701, South Korea
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Lee YC. ASEAN Orthopaedic Association Outreach Programmes. Malays Orthop J 2013. [DOI: 10.5704/moj.1303.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Chen SY, Lee YC, Alas V, Greene M, Brixner D. Outcomes associated with concordance of oral antidiabetic drug treatments to prescribing information in patients with type 2 diabetes mellitus and chronic kidney disease. J Med Econ 2013; 16:586-95. [PMID: 23402560 DOI: 10.3111/13696998.2013.775135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVES This retrospective study aims to examine the association between prescribing information (PI)-concordant oral antidiabetic drug (OAD) treatment and clinical and economic outcomes in patients with type 2 diabetes mellitus and stages 3-5 chronic kidney disease (CKD). METHODS The study used a large, national administrative claims database with laboratory findings to identify patients with a diagnosis of diabetes and indication of stages 3-5 CKD (first observed indication as the index date) between 1/1/2005 and 30/06/2009. OADs prescribed during 6 months following the index date (baseline period) were evaluated and patients were considered non-PI-concordant if any did not meet the recommendations regarding patients with renal impairment. Glycemic control and measures of healthcare costs (standardized to 2010 US dollars using the Consumer Price Index) and resource utilization were assessed during the 12 months following the baseline period. Severe hypoglycemic events were assessed after the baseline period until lost to follow-up. Regression analyses were performed after adjusting for demographic and clinical characteristics. RESULTS Among the 3300 patients included in the study, 2454 (74.4%) were non-PI-concordant. The non-PI-concordant patients had higher risk of severe hypoglycemic events identified in all settings (HR = 1.35, 95% CI: 1.10-1.67) and events identified in inpatient hospital setting (HR = 2.51, 95% CI: 1.49-4.22), were more likely to have inpatient hospital admissions (OR = 1.27, 95% CI: 1.02-1.57), and were less likely to have glycemic control (OR = 0.56, 95% CI: 0.44-0.71). Annual diabetes-related cost was $1638 higher in the non-PI-concordant cohort (p = 0.0048). LIMITATION The retrospective cohort design does not allow for conclusions to be drawn on the causal effect of PI-concordant use based on the associations observed. CONCLUSION Our findings suggest PI-concordant treatment to be associated with better clinical and diabetes-associated economic outcomes. Future research is warranted to confirm the associations found in this study.
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Affiliation(s)
- S Y Chen
- United BioSource Corporation, Lexington, MA, USA
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Wolfe F, Walitt BT, Katz RS, Lee YC, Michaud KD, Häuser W. Longitudinal patterns of analgesic and central acting drug use and associated effectiveness in fibromyalgia. Eur J Pain 2012; 17:581-6. [PMID: 23169685 DOI: 10.1002/j.1532-2149.2012.00234.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2012] [Indexed: 01/01/2023]
Abstract
BACKGROUND We describe the changing pattern of analgesic and new central acting drug (NCAD) use (pregabalin, duloxetine, milnacipran) in fibromyalgia and measure NCAD effectiveness in clinical practice. METHODS About 3123 US adult patients with fibromyalgia participated in an 11-year longitudinal study of fibromyalgia outcomes. We assessed severity-adjusted treatment prevalence and measured the effect of any use of NCAD on pain and fatigue, and functional status using the Health Assessment Questionnaire (HAQ) disability index. RESULTS In 2010, 46.7% of patients used opioids, including 12.5% who used strong opioids. During the 11 years, severity-adjusted strong opioid use increased from 6.3% to 11.7% and any opioid use from 40.0% to 46.6%. Nonsteroidal anti-inflammatory drug (NSAID) use decreased from 74% to 44%. Tricyclic use dropped in half, from 27% to 15%, while NCAD use increased from less than 10% to 39%. The estimated 25th and 50th percentiles for NCAD discontinuation time were 1 and 2.5 years. Overall pain, fatigue and HAQ scores were unchanged over the 11 years. For patients treated with NCAD, pain scores were reduced significantly by 0.17 (0.03, 0.30) units following the start of NCAD, an improvement of 2.8%. Some sensitivity analyses showed improvements of up to 4.3%. There was no significant improvement in fatigue or functional status. CONCLUSIONS There is a changing pattern of drug treatment in fibromyalgia, consisting mostly of decreased NSAID and amitriptyline use and an increase in NCAD. Drug costs are substantially higher because of NCAD use, but we found no evidence of clinical benefit for NCAD compared with prior therapy.
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Affiliation(s)
- F Wolfe
- Rheumatology, National Data Bank for Rheumatic Diseases, Wichita, Kansas, USA.
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