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Cho SF, Yeh TJ, Wang HC, Du JS, Gau YC, Lin YY, Chuang TM, Liu YC, Hsiao HH, Moi SH. Prognostic mutation signature would serve as a potential prognostic predictor in patients with diffuse large B-cell lymphoma. Sci Rep 2024; 14:6161. [PMID: 38485750 PMCID: PMC10940711 DOI: 10.1038/s41598-024-56583-4] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/08/2024] [Indexed: 03/18/2024] Open
Abstract
The present study aimed to elucidate the prognostic mutation signature (PMS) associated with long-term survival in a diffuse large B-cell lymphoma (DLBCL) cohort. All data including derivation and validation cohorts were retrospectively retrieved from The Cancer Genome Atlas (TCGA) database and whole-exome sequencing (WES) data. The Lasso Cox regression analysis was used to construct the PMS based on WES data, and the PMS was determined using the area under the receiver operating curve (AUC). The predictive performance of eligible PMS was analyzed by time-dependent receiver operating curve (ROC) analyses. After the initial evaluation, a PMS composed of 94 PFS-related genes was constructed. Notably, this constructed PMS accurately predicted the 12-, 36-, and 60-month PFS, with AUC values of 0.982, 0.983, and 0.987, respectively. A higher level of PMS was closely linked to a significantly worse PFS, regardless of the molecular subtype. Further evaluation by forest plot revealed incorporation of international prognostic index or tumor mutational burden into PMS increased the prediction capability for PFS. The drug-gene interaction and pathway exploration revealed the PFS-related genes were associated with DNA damage, TP53, apoptosis, and immune cell functions. In conclusion, this study utilizing a high throughput genetic approach demonstrated that the PMS could serve as a prognostic predictor in DLBCL patients. Furthermore, the identification of the key signaling pathways for disease progression also provides information for further investigation to gain more insight into novel drug-resistant mechanisms.
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Affiliation(s)
- Shih-Feng Cho
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Center for Liquid Biopsy and Cohort Research, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Tsung-Jang Yeh
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Hui-Ching Wang
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Jeng-Shiun Du
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yuh-Ching Gau
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yu-Yin Lin
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Tzer-Ming Chuang
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yi-Chang Liu
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Hui-Hua Hsiao
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Sin-Hua Moi
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Research Center for Precision Environmental Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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Lin YY, Yu WX, Li GQ, Yang S, Huang H, Tang ZX, Shui L, Liu LF, Yang J. [Application of photodynamic therapy in otorhinolaryngology]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:1272-1277. [PMID: 38186105 DOI: 10.3760/cma.j.cn115330-20230720-00010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Affiliation(s)
- Y Y Lin
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - W X Yu
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - G Q Li
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - S Yang
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - H Huang
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - Z X Tang
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - L Shui
- Suining Central Hospital Otorhinolaryngology Center, Suining 629000, China
| | - L F Liu
- Otorhinolaryngology Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - J Yang
- Department of Thoracic Surgery, Nanchong Central Hospital, Nanchong 637003, China
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Huang YC, Huang JC, Chien HH, Lin CI, Chuang YS, Cheng HY, Lin WT, Lin YY, Chuang HY, Ho CK, Wang CL, Dai CY. Performance of nonalcoholic fatty liver fibrosis score in estimating atherosclerotic cardiovascular disease risk. Nutr Metab Cardiovasc Dis 2023; 33:2479-2487. [PMID: 37788955 DOI: 10.1016/j.numecd.2023.08.005] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/20/2023] [Accepted: 08/07/2023] [Indexed: 10/05/2023]
Abstract
BACKGROUND AND AIMS It is currently unclear whether the nonalcoholic fatty liver disease (NAFLD) fibrosis score, when compared to major anthropometric indices, is useful in estimating the risk of atherosclerotic cardiovascular disease (ASCVD). METHODS AND RESULTS This study included 3886 adults undergoing a health checkup. An elevated risk of ASCVD was determined as a 10-year ASCVD risk ≥7.5% using Pooled Cohort Equations. NAFLD was diagnosed with abdominal ultrasonography. Receiver operating characteristic curves were used to evaluate the performance of estimating an elevated ASCVD risk. Among study participants, 521 (13.4%) had an elevated ASCVD risk and 1473 (37.9%) had NAFLD. Subjects with NAFLD had a significantly higher rate of ASCVD risk ≥7.5% (p < 0.001) compared to those without NAFLD. After adjusting for cardiometabolic risk factors, NAFLD (OR = 1.49, 95% CI: 1.10-2.00, p = 0.009) in all participants and NAFLD fibrosis score >0.676 (OR = 1.95, 95% CI: 1.30-2.92, p = 0.001) in individuals with NAFLD were significantly associated with an elevated risk of ASCVD. When compared to different anthropometric indices, NAFLD fibrosis score exhibited the largest area under the curve (AUC) in individuals with NAFLD (AUC = 0.750) in estimating an elevated ASCVD risk. Furthermore, NAFLD fibrosis score displayed the best predictive performance for identifying an elevated ASCVD risk in male participants with NAFLD (AUC = 0.737). CONCLUSION NAFLD was a significant risk factor for elevated ASCVD risk. NAFLD fibrosis score >0.676 was associated with increased ASCVD risk in individuals with NAFLD. Compared with anthropometric indices, NAFLD fibrosis score demonstrated the best performance in estimating elevated ASCVD risk among those with NAFLD.
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Affiliation(s)
- Ya-Chin Huang
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jiun-Chi Huang
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Division of Renal Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Hsu-Han Chien
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-I Lin
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yun-Shiuan Chuang
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Han-Yun Cheng
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wei-Ting Lin
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Yin Lin
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hung-Yi Chuang
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Kung Ho
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chao-Ling Wang
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Chia-Yen Dai
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Lin YY, Liu LF, Qiu HT, Hui ML, Yao J, Zhang TZ. [Mc Cune-Albright syndrome with multiple hemangiomas of maxillofacial bone: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:712-714. [PMID: 37455118 DOI: 10.3760/cma.j.cn115330-20220906-00545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Affiliation(s)
- Y Y Lin
- Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - L F Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - H T Qiu
- Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - M L Hui
- Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - J Yao
- Department of Otorhinolaryngology, Head and Neck Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
| | - T Z Zhang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524000, China
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Deng RZ, Tian L, Sun XQ, Zhang JF, Lin N, Lin YY, Lyu F. [Development of an asthenopia survey questionnaire for general surveys]. Zhonghua Yan Ke Za Zhi 2023; 59:452-459. [PMID: 37264575 DOI: 10.3760/cma.j.cn112142-20220712-00339] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Objective: To design a visual fatigue questionnaire that can be used for population surveys. Methods: This was a cross-sectional study that involved three stages of subjects' recruitment. In the first stage, by convenience sampling, 150 individuals who complained of visual fatigue were selected at public places in Wenzhou City in May 2016. The 19-Item Asthenopia Survey Questionnaire (ASQ-19) was used to conduct the survey, and the questionnaire was adjusted. In the second stage, 200 outpatient participants were recruited from Wenzhou Medical University Affiliated Eye and Optometry Hospital from June 2016 to May 2017 and were divided into a visual fatigue group and a control group based on clinical diagnosis. The adjusted visual fatigue questionnaire was used for validation. In the third stage, 64 outpatient participants who met the inclusion criteria were continuously recruited from the Wenzhou Medical University Affiliated Eye and Optometry Hospital in July 2022. They were tested using the adjusted visual fatigue questionnaire and retested one week later. During the questionnaire adjustment stage, factor analysis and feedback were used to adjust the scoring method and items of the ASQ-19 questionnaire. The adjusted questionnaire was then analyzed for reliability, validity, accuracy, and subject acceptance during the validation and retest stages. Results: A total of 403 participants were included, and 456 questionnaires were distributed. Eventually, 432 valid questionnaires were collected from 379 participants, resulting in a valid response rate of 94.7%. During the questionnaire adjustment phase, there were 140 valid questionnaires from 140 participants consisting of 56 males and 84 females with an average age of (35.2±12.4) years. In the questionnaire validation phase, there were 186 valid questionnaires from 186 participants. Sixty-two participants had visual fatigue and 124 were controls. During the questionnaire retesting phase, 53 participants yielded 106 valid questionnaires. The group consisted of 20 males and 33 females with an average age of (22.8±4.9) years. After factor analysis, the symptom severity graded as none, mild, moderate, severe, and very severe was scored as 0, 1, 2, 3, and 4 points, respectively. The total score was 44, and the final questionnaire consisted of 11 items (numbered 1, 2, 3, 5, 6, 8, 10, 15, 17, 18, and 19). The 11-Item Asthenopia Survey Questionnaire (ASQ-11) had a Cronbach's α coefficient of 0.89, a split-half reliability of 0.82, and a test-retest Pearson correlation coefficient of 0.90 (P<0.001). The structural validity was 51.26%, and the discriminative validity was a t-value of 9.19 (P<0.001). On average, it took (2.82±0.43) minutes for participants to complete the questionnaire. The receiver operating characteristic curve had a cutoff value of 8.5, with a sensitivity of 74.19% and a specificity of 80.65%. Conclusion: The ASQ-11, with fewer items and a shorter completion time, is easy for participants to use and is suitable for screening or self-assessment of visual fatigue in the general population. Additionally, it is convenient for clinical and epidemiological studies related to visual fatigue.
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Affiliation(s)
- R Z Deng
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - L Tian
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - X Q Sun
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - J F Zhang
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - N Lin
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - Y Y Lin
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - F Lyu
- Eye Hospital of Wenzhou Medical University, Nation Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
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Chen PH, Lin YY, Wright NC, Lockwood SA, Mitchell SC. Efficacy of Early Preventive Dental Services in Primary Medical Care Setting: Results From Alabama's 1st Look Program. Pediatr Dent 2022; 44:433-439. [PMID: 36947753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Purpose: To evaluate early preventive dental services (PDS) provided by primary care providers (PCPs) in reducing future caries treatments among Alabama Medicaid recipients. Methods: Data from 2009 to 2019 Alabama Medicaid were used to evaluate effectiveness of 1st Look Program on PDS before age three years and incidence of caries treatments after age three years. PDS groups consisted of 1st Look-involved (PDS claims from PCPs), dentist-only (PDS claims from dental providers), and no early fluoride treatment participants (no PDS claims before age three years). Outcomes included frequency and expenditures of fluoride applications, simple restorations, and extensive treatments. Regression models were used to evaluate associations between PDS groups and outcomes while controlling for covariates. Results: Children in 1st Look- involved received more fluoride (3.0 versus 2.1 times; P<0.001) and were applied earlier (12.1 versus 22.9 months old; P<0.001) than dentist-only group. After adjusting for covariates, compared to dentist-only, 1st Look-involved group received earlier fluoride (beta value equals -11.1 months; 95 percent confidence interval [95% CI] equals -11.25 to -10.97) with greater frequency (incident rate ratio equals 1.49; 95% CI equals 1.47 to 1.51). Caries treatment counts were highest in dentist-only followed by 1st Look-involved and no early fluoride treatment groups in both simple restorations (2.7 versus 2.0 versus 0.2 times; P<0.001) and extensive treatments (2.8 versus 2.3 versus 0.2 times; P<0.001), which were consistent after adjusting for covariates. Conclusions: PDS were provided earlier by PCPs in Medicaid-qualified children, with reduced caries treatments on primary teeth, compared to PDS by dental providers only.
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Affiliation(s)
- Po-Hsu Chen
- Dr. Chen is an assistant professor, Department of Restorative Sciences, University of Alabama, Birmingham, Ala., USA;,
| | - Yu-Yin Lin
- Dr. Lin is an assistant professor, Department of Pediatric Dentistry, University of Alabama, Birmingham, Ala., USA
| | - Nicole C Wright
- Dr. Wright is an associate professor, Department of Epidemiology, School of Public Health, University of Alabama, Birmingham, Ala., USA
| | - Stuart A Lockwood
- Dr. Lockwood is an adjunct assistant professor, Department of Clinical and Community Sciences, School of Dentistry, University of Alabama, Birmingham, Ala., USA
| | - Stephen C Mitchell
- Dr. Mitchell is a professor, Department of Pediatric Dentistry, University of Alabama, Birmingham, Ala., USA
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Lin YY. Response to Letter to the Editor. Pediatr Dent 2022; 44:319. [PMID: 36309782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Yu-Yin Lin
- Assistant Professor of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, Ala., USA
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Lin YY, Zhang P, Cheon K, Jackson JG, Lawson NC. Chemical and Physical Properties of Contemporary Pulp Capping Materials. Pediatr Dent 2022; 44:207-212. [PMID: 35799338] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Purpose: The purpose of this study was to compare the chemical and physical properties of eight contemporary direct pulp capping materials. Methods: Materials included: calcium hydroxide-based (Dycal®, Lime-LiteTM, and Ultra-BlendTM plus), bioceramic-based (MTA Angelus®, Biodentine®, TheraCal LC®, Ceramir® Protect LC), and resin ionomer-based materials (Bio-Cap®). Calcium release and pH changes were measured after one, seven, 28, and 90 days in 36.8 degrees Celsius of deionized water. Water sorption and solubility were calculated with weight loss after 90 days. Results: Biodentine® (965.5 ppm) and MTA Angelus® (921.2 ppm) released significantly more cumulative calcium ions (P<0.05), followed by Ceramir® Protect LC (450.8 ppm) and Dycal® (268.1 ppm); Lime-LiteTM had the least amount of calcium ions. After 90 days, Biodentine® and MTA Angelus® showed significantly higher pH (P<0.05), while Bio-Cap® and Lime-LiteTM had limited effects in raising the pH to alkaline. Dycal® presented the most weight loss (26 percent, P<0.05) after 90 days. Conclusions: Biodentine® and MTA Angelus® demonstrated more favorable in vitro characteristics for clinical pulp capping purposes, while Lime-LiteTM had no effect in releasing calcium ions and limited influence in raising pH value.
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Affiliation(s)
- Yu-Yin Lin
- Dr. Lin is an assistant professor of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, Ala., USA
| | - Ping Zhang
- Dr. Zhang is a professor of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, Ala., USA
| | - Kyounga Cheon
- Dr. Cheon is an associate professor of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, Ala., USA
| | - Janice G Jackson
- Dr. Jackson is a professor and chair of Pediatric Dentistry, University of Alabama at Birmingham, Birmingham, Ala., USA
| | - Nathaniel C Lawson
- Dr. Lawson is an associate professor of Clinical and Community Sciences Department, University of Alabama at Birmingham, Birmingham, Ala., USA ;,
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Sun SG, Guo JJ, Qu XY, Tang XY, Lin YY, Hua KQ, Qiu JJ. The extracellular vesicular pseudogene LGMNP1 induces M2-like macrophage polarization by upregulating LGMN and serves as a novel promising predictive biomarker for ovarian endometriosis recurrence. Hum Reprod 2021; 37:447-465. [PMID: 34893848 DOI: 10.1093/humrep/deab266] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 11/02/2021] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION How does ectopic endometrial stromal cell (Ecto-ESC)-derived extracellular vesicular Legumain pseudogene 1 (EV-LGMNP1), a newly identified pseudogene of Legumain (LGMN), contribute to M2-phenotype macrophage polarization, and does it predict recurrence in patients with ovarian endometriosis (EMs)? SUMMARY ANSWER EV-LGMNP1, which is abundant in Ecto-ESCs and serum from ovarian EMs, can direct macrophages towards an M2 phenotype by upregulating LGMN expression and is a promising biomarker for predicting ovarian EMs recurrence. WHAT IS KNOWN ALREADY Extracellular vesicles (EVs) can mediate cell-to-cell crosstalk to promote disease progression via cargo molecule transport. Recently, LGMNP1, a newly identified pseudogene of LGMN, has been reported to promote cancer progression by upregulating LGMN. LGMN is a well-studied protein that can induce M2-like polarization. STUDY DESIGN, SIZE, DURATION An in vitro study was conducted with Ecto-ESCs isolated from ectopic endometrial samples, collected from two patients with ovarian EMs (diagnosed by laparoscopy and histological analysis). A clinical retrospective cohort study of 52 ovarian EMs patients and 21 controls with available preoperative serum samples was carried out (2013-2017). The follow-up period ended either at the time of recurrence or on 31 December 2018. PARTICIPANTS/MATERIALS, SETTING, METHODS Ecto-ESC-derived EVs (EV/Ecto-ESCs) were characterized by nanoparticle tracking analysis, transmission electron microscopy and western blotting. EV internalization by THP-1 cells, which are the most widely used primary human macrophages model, was detected by fluorescence labelling. After EV treatment, THP-1 cell polarization was detected by quantitative real-time PCR (qRT-PCR) and western blot analyses of CD86 (M1-related marker) and CD206 (M2-related marker). LGMNP1 mRNA expression level in EVs from both primary ectopic endometrioc stromal cells and serum was examined using qRT-PCR. Additionally, the expression of LGMN, the downstream target gene of LGMNP1, in THP-1 cells was evaluated using qRT-PCR and western blotting. Kaplan-Meier and multivariate Cox regression analyses were applied to evaluate the independent predictive factors of EMs recurrence-free survival. A novel nomogram model based on serum EV-LGMNP1 was then formulated to predict EMs recurrence. MAIN RESULTS AND THE ROLE OF CHANCE In vitro assays demonstrated that EV/Ecto-ESCs drove macrophages towards an M2-like phenotype. Moreover, LGMNP1 contributed to EV/Ecto-ESC-induced M2 macrophage polarization by upregulating LGMN mRNA expression levels. Clinically, serum EV-LGMNP1 was more highly expressed in recurrent EMs patients than in controls and EMs patients without recurrence. Survival analysis and our novel nomogram reconfirmed that serum EV-LGMNP1 was a novel promising and meaningful non-invasive biomarker for predicting EMs recurrence. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION In vitro experiments were only performed on samples from two patients with ovarian endometriosis, and a larger sample size is needed. ESCs isolated from the eutopic endometrium of EMs and non-EMs patients should be studied in the future. Additionally, in vitro experiments should be performed using endometrial epithelium cells and further in vivo experiments, such as using mice endometriotic models to investigate whether EV/Ecto could induce M2 macrophage polarization, should be conducted. Moreover, multicentre, large-sample data are needed to validate our predictive nomogram model. WIDER IMPLICATIONS OF THE FINDINGS Our study provides novel insights into the mechanism of M2 polarization involved in ovarian EMs progression mediated by an 'EV-shuttled pseudogene LGMNP1' mode. In addition, serum EV-LGMNP1 may serve as a novel non-invasive biomarker for predicting recurrence, providing a new therapeutic target for ovarian EMs. STUDY FUNDING/COMPETING INTEREST(S) This project was supported by funding from the National Natural Science Foundation of China (81971361), the Natural Science Foundation of Shanghai Science and Technology (19ZR1406900), the Shanghai 'Rising Stars of Medical Talent' Youth Development Program (AB83030002019004), the Clinical Research Plan of SHDC (SHDC2020CR4087), the Shanghai Municipal Health Commission (202040498), the Research and Innovation Project of the Shanghai Municipal Education Commission (2019-01-07-00-07-E00050) and the Clinical Research Plan of SHDC (SHDC2020CR1045B). There are no competing interests to declare.
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Affiliation(s)
- S G Sun
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - J J Guo
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - X Y Qu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - X Y Tang
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Y Y Lin
- Department of Neurosurgery, Ren Ji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
| | - K Q Hua
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - J J Qiu
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
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Chen RF, Cheng KC, Lin YY, Chang IC, Tsai CH. Predicting Unscheduled Emergency Department Return Visits Among Older Adults: Population-Based Retrospective Study. JMIR Med Inform 2021; 9:e22491. [PMID: 34319244 PMCID: PMC8367131 DOI: 10.2196/22491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 01/11/2021] [Accepted: 06/17/2021] [Indexed: 11/29/2022] Open
Abstract
Background Unscheduled emergency department return visits (EDRVs) are key indicators for monitoring the quality of emergency medical care. A high return rate implies that the medical services provided by the emergency department (ED) failed to achieve the expected results of accurate diagnosis and effective treatment. Older adults are more susceptible to diseases and comorbidities than younger adults, and they exhibit unique and complex clinical characteristics that increase the difficulty of clinical diagnosis and treatment. Older adults also use more emergency medical resources than people in other age groups. Many studies have reviewed the causes of EDRVs among general ED patients; however, few have focused on older adults, although this is the age group with the highest rate of EDRVs. Objective This aim of this study is to establish a model for predicting unscheduled EDRVs within a 72-hour period among patients aged 65 years and older. In addition, we aim to investigate the effects of the influencing factors on their unscheduled EDRVs. Methods We used stratified and randomized data from Taiwan’s National Health Insurance Research Database and applied data mining techniques to construct a prediction model consisting of patient, disease, hospital, and physician characteristics. Records of ED visits by patients aged 65 years and older from 1996 to 2010 in the National Health Insurance Research Database were selected, and the final sample size was 49,252 records. Results The decision tree of the prediction model achieved an acceptable overall accuracy of 76.80%. Economic status, chronic illness, and length of stay in the ED were the top three variables influencing unscheduled EDRVs. Those who stayed in the ED overnight or longer on their first visit were less likely to return. This study confirms the results of prior studies, which found that economically underprivileged older adults with chronic illness and comorbidities were more likely to return to the ED. Conclusions Medical institutions can use our prediction model as a reference to improve medical management and clinical services by understanding the reasons for 72-hour unscheduled EDRVs in older adult patients. A possible solution is to create mechanisms that incorporate our prediction model and develop a support system with customized medical education for older patients and their family members before discharge. Meanwhile, a reasonably longer length of stay in the ED may help evaluate treatments and guide prognosis for older adult patients, and it may further reduce the rate of their unscheduled EDRVs.
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Affiliation(s)
- Rai-Fu Chen
- Department of Information Management, Chia-Nan University of Pharmacy and Science, Tainan City, Taiwan
| | - Kuei-Chen Cheng
- Department of Information Management, National Chung Cheng University, Chiayi County, Taiwan
| | - Yu-Yin Lin
- Department of Information Management, National Chung Cheng University, Chiayi County, Taiwan
| | - I-Chiu Chang
- Department of Information Management, National Chung Cheng University, Chiayi County, Taiwan
| | - Cheng-Han Tsai
- Department of Information Management, National Chung Cheng University, Chiayi County, Taiwan.,Department of Emergency, Chiayi Branch, Taichung Veterans General Hospital, Chiayi City, Taiwan
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Huang YC, Huang JC, Lin CI, Chien HH, Lin YY, Wang CL, Liang FW, Dai CY, Chuang HY. Comparison of Innovative and Traditional Cardiometabolic Indices in Estimating Atherosclerotic Cardiovascular Disease Risk in Adults. Diagnostics (Basel) 2021; 11:diagnostics11040603. [PMID: 33800660 PMCID: PMC8067018 DOI: 10.3390/diagnostics11040603] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 02/24/2021] [Revised: 03/16/2021] [Accepted: 03/24/2021] [Indexed: 12/22/2022] Open
Abstract
This study aimed to investigate the performance of innovative and traditional cardiometabolic indices, including body mass index (BMI), waist circumference (WC), Chinese visceral adiposity index (CVAI), visceral adiposity index, lipid accumulation product, a body shape index (ABSI), body roundness index, conicity index (CI), triglyceride-glucose (TyG) index, TyG-BMI, and TyG-WC, in estimating atherosclerotic cardiovascular disease (ASCVD) risk in 3143 Taiwanese adults aged 20–79 years. Elevated 10-year ASCVD risk was defined as ≥7.5% using the Pooled Cohort Equations. The performance of different indices in estimating elevated ASCVD risk was assessed by receiver operating characteristic (ROC) curves. In multivariate-adjusted logistic regression analyses, all cardiometabolic indices (p-value < 0.001) were significantly associated with elevated ASCVD risk in both genders, except for ABSI and CI in women. In particular, CVAI had the largest area under the curve (AUC) in men (0.721) and women (0.883) in the ROC analyses. BMI had the lowest AUC in men (0.617), while ABSI had the lowest AUC in women (0.613). The optimal cut-off value for CVAI was 83.7 in men and 70.8 in women. CVAI performed best among various cardiometabolic indices in estimating elevated ASCVD risk. CVAI may be a reliable index for identifying people at increased risk of ASCVD.
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Affiliation(s)
- Ya-Chin Huang
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 801, Taiwan; (Y.-C.H.); (C.-I.L.); (H.-H.C.)
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-Y.L.); (C.-L.W.); (H.-Y.C.)
- Master Program of Public Health, Department of Public Health, College of Heath Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jiun-Chi Huang
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan;
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chia-I Lin
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 801, Taiwan; (Y.-C.H.); (C.-I.L.); (H.-H.C.)
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-Y.L.); (C.-L.W.); (H.-Y.C.)
| | - Hsu-Han Chien
- Department of Preventive Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung 801, Taiwan; (Y.-C.H.); (C.-I.L.); (H.-H.C.)
| | - Yu-Yin Lin
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-Y.L.); (C.-L.W.); (H.-Y.C.)
| | - Chao-Ling Wang
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-Y.L.); (C.-L.W.); (H.-Y.C.)
| | - Fu-Wen Liang
- Department of Public Health, College of Health Science, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (F.-W.L.); (C.-Y.D.)
| | - Chia-Yen Dai
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence: (F.-W.L.); (C.-Y.D.)
| | - Hung-Yi Chuang
- Department of Occupational & Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (Y.-Y.L.); (C.-L.W.); (H.-Y.C.)
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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12
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Lin YY, Zhang YW. [Research progress in executive function in preschool children with development language disorder]. Zhonghua Er Ke Za Zhi 2021; 59:238-241. [PMID: 33657703 DOI: 10.3760/cma.j.cn112140-20200806-00784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Y Lin
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center Affiliated Shanghai Jiao Tong University School of Medical, National Children's Medical Center, Shanghai 200127, China
| | - Y W Zhang
- Department of Developmental and Behavioral Pediatrics, Shanghai Children's Medical Center Affiliated Shanghai Jiao Tong University School of Medical, National Children's Medical Center, Shanghai 200127, China
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13
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Affiliation(s)
| | | | - YY Lin
- National Taiwan University, Taiwan
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14
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Xiao LZ, Ouyang R, Xie HG, Chen ZY, Lin YY, Zhang SY. [Epidemiological characteristics of imported malaria cases in Fujian Province from 2014 to 2018]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:401-404. [PMID: 32935517 DOI: 10.16250/j.32.1374.2020011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the epidemiological characteristics of imported malaria cases in Fujian Province from 2014 to 2018, so as to provide scientific basis for the development of the control strategy for imported malaria. METHODS The epidemiological data of malaria cases in Fujian Province from 2014 to 2018 were retrieved from the Notifiable Disease Reporting System and Parasitic Disease Information Reporting System of Chinese Center for Disease Control and Prevention, and the classification, origin of infections, temporal distribution, spatial distribution, population distribution, reporting institutions and diagnosis were analyzed. RESULTS A total of 540 overseas imported malaria cases were reported in Fujian Province from 2014 to 2018, and all cases were laboratory-confirmed, including 398 cases with falciparum malaria, 88 cases with vivax malaria, 38 cases with ovale malaria, 14 cases with malariae malaria and 2 cases with mixed infections. There were 90.56% (489/540) of the imported malaria cases with infections in 27 African countries, 5.92% (32/540) with infections in 5 Asian countries and 3.52% (19/540) with infections in one Oceania country. There was no significant seasonal distribution of the cases, and the imported malaria cases were predominantly detected in Fuzhou City (80.00%, 432/540) and at ages of 20 to 49 years (81.48%, 440/540). Initial diagnosis was predominantly at the city-level medical institutions, and 77.96% (421/540) were diagnosed as malaria at the initial diagnosis institutions. The median duration from onset to initial diagnosis was 2 days and 70.19% (379/540) were diagnosed within 3 days of onset. The interval between initial diagnosis and definitive diagnosis was 0 day, with 85.37% (461/540) definitively diagnosed within 3 days of initial diagnosis. CONCLUSIONS Overseas imported malaria is a continuous problem challenging the malaria elimination programme of Fujian Province. Improving the healthcare-seeking awareness and the diagnostic capability of healthcare workers, and intensifying the monitoring and management of malaria among overseas labors are strongly recommended.
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Affiliation(s)
- L Z Xiao
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
| | - R Ouyang
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
| | - H G Xie
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
| | - Z Y Chen
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
| | - Y Y Lin
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
| | - S Y Zhang
- Fujian Provincial Center for Disease Control and Prevention, Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350000, China
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15
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Cui ZL, Shou JB, Liu B, Wang HH, Lin YY, Zeng JX, Long ZZ, Chen YB, Zhang XM. [Clinical effect of X-N advancement flap in repairing pressure ulcer on the buttock or back]. Zhonghua Shao Shang Za Zhi 2020; 36:476-479. [PMID: 32594706 DOI: 10.3760/cma.j.cn501120-20191011-00399] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical effect of X-N advancement flap in repairing pressure ulcer on the buttock or back. Methods: From June 2018 to June 2019, 20 patients with grade Ⅳ pressure ulcers on the buttock or back were hospitalized and treated in the Department of Traumatology, Burns and Plastic Surgery of Fourth Affiliated Hospital of Guangxi Medical University, including 15 males and 5 females, aged 48-89 years. The area of the patient's wound was 8 cm×5 cm-15 cm×12 cm after debridement, and all were repaired with the X-N advancement flap designed by the author. The flap was designed according to the direction of skin relaxation on both sides of the wound, and the skin was incised in X-shape and sutured in N-shape. The width and advancement distance of the flap were recorded, and the ratio of the advancement distance to the width of the flap was calculated. The flap survival, complication, and follow-up were observed and recorded. Results: The width of the flap was (5.9±1.2) cm, the advancement distance of the flap was (10.3±2.5) cm, and the ratio of the advancement distance to the width of the flap was 1.8±0.4. All the flaps survived, and none of the flaps had blood flow disorder. Local dehiscence occurred in the flap of one patient 1 week after surgery, which was healed after laying on the floating bed, strengthened care, and wound dressing change. The flap of one patient developed infection 5 days after surgery, which was healed after partial suture removal, smooth drainage, and replacement with sensitive antibiotics. The wounds of the remaining 18 patients were all cured. After 3 months of follow-up, the flaps survived well with good elasticity and texture. Conclusions: The X-N advancement flap can make the skin and soft tissue move forward effectively. It is simple and effective to repair pressure ulcers on the back or buttock of patients with this flap, which is worthy of clinical promotion and application.
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Affiliation(s)
- Z L Cui
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - J B Shou
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - B Liu
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - H H Wang
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - Y Y Lin
- Seventh Department of Plastic Surgery, Plastic Surgery Hospital of Chinese Academy of Medical Sciences, Beijing 100041
| | - J X Zeng
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - Z Z Long
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - Y B Chen
- Department of Traumatology, Burns and Plastic Surgery, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
| | - X M Zhang
- Department of Pathology, Fourth Affiliated Hospital of Guangxi Medical University, Liuzhou 545005
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Lin YY, Cho SF. Occult scar carcinoma of the lung with overt liver metastases and high serum CA 19-9 levels. J Postgrad Med 2019; 65:251-252. [PMID: 31611432 PMCID: PMC6813679 DOI: 10.4103/jpgm.jpgm_145_19] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Y Y Lin
- Department of Preventive Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - S F Cho
- Division of Hematology and Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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Lin YY, Zhu TT, Qi HL, He YC, Xu YX, Liu C, Chen HS, Tan XH, Kang M. [Survey on the quadrivalent influenza vaccine intention and related factors of health care workers in the Pearl River Delta region from 2015 to 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:1022-1026. [PMID: 31607049 DOI: 10.3760/cma.j.issn.0253-9624.2019.10.013] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the quadrivalent influenza vaccine intention of 718 health care workers (HCWs) in the Pearl River Delta region from 2015 to 2017. Method: In May 2018, 718 HCWs from the department related to the diagnosis and treatment of influenza in 17 hospitals (6 tertiary hospitals, 5 secondary hospitals and 6 primary hospitals) from Guangzhou, Jiangmen, Zhuhai and Dongguan were selected by using stratified sampling method. Questionnaire survey and face-to-face interview were used to collect the information of influenza vaccination, the intention of the quadrivalent influenza vaccine, the acceptance of free and required vaccination policies, and recommendations for increasing influenza vaccination intentions from 2015 to 2017. The multivariate logistic regression was used to analyze factors associated with the vaccination intention. Results: A total of 718 HCWs were surveyed and 147 of them were interviewed face to face. Among them, the vaccination rate of primary hospitals [17.39%(40/230)] was higher than that of other hospitals (χ(2)=15.80, P<0.05). If the vaccine could be free, 84.82% (609/718) of HCWs would like to be vaccinated. The multivariate logistic regression showed that the factors, HCWs who were aged ≥50 years (OR=3.44, 95%CI:1.43-8.28), worked in department of prevention and health care (OR=2.35, 95%CI:1.16-4.75), learned about the quadrivalent influenza vaccine (OR=2.94, 95%CI:2.08-4.18), knowed that HCWs are priority (OR=2.33, 95%CI:1.56-3.48), and had a history of trivalent influenza vaccination from 2015 to 2017 (OR=4.70, 95%CI:3.08-7.15), were associated with the vaccination intention. Conclusion: HCWs in the Pearl River Delta region had weak inclination of getting quadrivalent influenza vaccine. HCWs who were age (≥50 years old), worked in department of prevention and health care, learned about the quadrivalent influenza vaccine, knowed that HCWs are priority, and had a history of trivalent influenza vaccination from 2015 to 2017 were factors positively associated with the vaccination intention.
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Affiliation(s)
- Y Y Lin
- Department of Public Health, Xinhui District Center for Disease Control and Prevention, Jiangmen 529100, China
| | - T T Zhu
- Department of Food Hygiene, Zhuhai Center for Disease Control and Prevention, Zhuhai 519060, China
| | - H L Qi
- Department of Inspection, Ganzi Municipality Center for Disease Control and Prevention, Ganzi 26000, China
| | - Y C He
- Department of Parasitic Diseases Prevention and Control, Zhanjiang Center for Disease Control and Prevention, Zhanjiang 524037, China
| | - Y X Xu
- Department of Health, Huadu District Center for Disease Control and Prevention, Guangzhou 511430, China
| | - C Liu
- Department of Health Education and Chronic Noncommunicable Diseases, Linzhi Center for Disease Control and Prevention, Linzhi 860000, China
| | - H S Chen
- Institute of HIV/AIDS Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China
| | - X H Tan
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention/Gneneral Office of Guangdong Provincial Field Epidemiology Training Program, Guangzhou 511430, China
| | - M Kang
- Institute of Infectious Disease Control and Prevention, Guangdong Provincial Center for Disease Control and Prevention/Gneneral Office of Guangdong Provincial Field Epidemiology Training Program, Guangzhou 511430, China
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Affiliation(s)
- Y Y Lin
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - C W Hsu
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - H M Li
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - H Y Su
- Department of Emergency Medicine, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
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Ma S, An F, Li LH, Lin YY, Wang J. Expression of Mucin 1 in salivary gland tumors and its correlation with clinicopathological factors. J BIOL REG HOMEOS AG 2019; 33:563-569. [PMID: 30916513] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study aimed to detect the expression of Mucin 1 (MUC1) in acinic cell carcinoma (AciCC) of salivary gland and to explore the relationship between MUC1 and clinicopathological factors of AciCC of salivary gland. Patients with salivary gland tumors who were treated at our hospital were enrolled in this study. The pathological sections collected from all subjects were classified by histological examinations. In addition, 40 cases of primary salivary gland AciCC tissues were selected and classified into experimental group, whereas 40 cases of normal salivary gland (NSG) tissues were selected and classified into control group. MUC1 positive cells in both experimental and control groups were detected by immunohistochemistry assays, while all clinical data were analyzed statistically. The results showed that MUC1 was only expressed in the ductal epithelium of NSG and distributed at the apical side of the cell membrane. In primary salivary gland AciCC tissues, scattered expressions of MUC1 were found both on the cell membrane and in the cytoplasm of tumor cells, and sometimes even in the cell nuclei, thus completely eliminating the polarized distribution of MUC1 expressions. The percentage of MUC1 positive cells in experimental group was significantly higher than that in control group (P < 0.05). In addition, the expression of MUC1 in salivary gland AciCC was correlated with gender, age, histological type, lesion location, cervical lymph node metastasis, local recurrence, and distant metastasis. In conclusion, MUC1 is related to the occurrence and development of salivary gland AciCC. Therefore, MUC1 may be used as a novel tumor marker in the clinical diagnosis and treatment of salivary gland AciCC.
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Affiliation(s)
- S Ma
- Department of Stomatology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
| | - F An
- Department of Stomatology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
| | - L H Li
- Department of Stomatology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
| | - Y Y Lin
- Department of Pathology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
| | - J Wang
- Department of Stomatology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China
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Cui YM, Han XH, Lin YY, Lv WW, Wang YL. TNF-α was involved in calcium hydroxide-promoted osteogenic differentiation of human DPSCs through NF-κB/p38MAPK/Wnt pathway. Pharmazie 2017; 72:329-333. [PMID: 29442020 DOI: 10.1691/ph.2017.7450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
It has been reported that calcium hydroxide can induce proliferation, migration, and mineralization in dental pulp stem cells (DPSCs), but the underlying molecular mechanisms are still unclear. In this study, we sought to explore the role of calcium hydroxide in the cell proliferation and directional differentiation of DPSCs and to study the regulatory effect of NF-κB, p38MAPK, and Wnt signaling on differentiation of DPSCs. CCK8 cell assay, Wound Healing Assay, and Alkaline Phosphatase Staining Assay were respectively used to determine the proliferation rate, migration and ALP expression of DPSCs. Alizarin Red Staining Assay was used to observe the mineralization of DPSCs. RT-PCR analysis and Western Blot Analysis displayed the expression of related fators at mRNA and protein level, respectively. In the present study, we found that NF-κB, p38MAPK, and Wnt signaling could abolish calcium hydroxide-induced proliferation of DPSCs. The inhibition of NF-κB, p38MAPK, and Wnt signaling suppressed the migration, ALP expression, and mineralization of DPSCs. NF-κB, p38MAPK, and Wnt signaling involved in directional differentiation of DPSCs. Moverover, calcium hydroxide could activate NF-κB, p38MAPK, and Wnt pathway by regulating TNF-α. Our study showed that NF-κB, p38MAPK, and Wnt signaling pathway were involved in calcium hydroxide-induced proliferation, migration, mineralization, and osteogenic differentiation in DPSCs. Calcium hydroxide affected NF-κB, p38MAPK, and Wnt pathway by regulating TNF-α.
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Ko CH, Chen YY, Wu KT, Wang SC, Yang JF, Lin YY, Lin CI, Kuo HJ, Dai CY, Hsieh MH. Effect of music on level of anxiety in patients undergoing colonoscopy without sedation. J Chin Med Assoc 2017; 80:154-160. [PMID: 27889459 DOI: 10.1016/j.jcma.2016.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/07/2016] [Accepted: 08/11/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Listening to music can be a noninvasive method for reducing the anxiety level without any adverse effects. The aim of this study was to explore whether music can reduce anxiety and to compare two different styles of music, informal classical music and light music, to ascertain the more effective style of music in reducing anxiety in patients undergoing colonoscopy without sedation. METHODS This study enrolled 138 patients who underwent colonoscopy without sedation during a general health examination from February 2009 to January 2015. The patients were randomly assigned to a group that did not listen to music, a group that listened to music by David Tolley, or a group that listened to music by Kevin Kern. The State-Trait Anxiety Inventory was used to evaluate the status of anxiety. RESULTS A trend test for mild anxiety was performed on the patients in the three groups, and a significant trend was noted (p=0.017 for all patients; p=0.014 for analysis by sex). Multivariate analysis for mild anxiety on the patients in each group was also performed in this study, and music by Kevin Kern was found to have the lowest odds ratio (Odds ratio=0.34, p=0.045). CONCLUSION Listening to music, especially music by Kevin Kern, reduced the level of anxiety in patients undergoing colonoscopy examination without sedation.
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Affiliation(s)
- Chia-Hui Ko
- Department of Music, College of Liberal Arts, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC
| | - Yi-Yu Chen
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Kuan-Ta Wu
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Shu-Chi Wang
- Hepatitis Center and Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Jeng-Fu Yang
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Yu-Yin Lin
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Chia-I Lin
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Hsiang-Ju Kuo
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC
| | - Chia-Yen Dai
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Hepatitis Center and Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Faculty of Internal Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
| | - Meng-Hsuan Hsieh
- Health Management Center, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Chung-Ho Memorial Hospital, Kaohsiung, Taiwan, ROC; Faculty of Internal Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC.
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Wang SC, Yang JF, Wang CL, Huang CF, Lin YY, Chen YY, Lo CT, Lee PY, Wu KT, Lin CI, Hsieh MH, Chuang HY, Ho CK, Yu ML, Dai CY. Distinct subpopulations of hepatitis C virus infectious cells with different levels of intracellular hepatitis C virus core protein. Kaohsiung J Med Sci 2016; 32:487-493. [PMID: 27742031 DOI: 10.1016/j.kjms.2016.08.002] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/20/2016] [Accepted: 07/28/2016] [Indexed: 01/19/2023] Open
Abstract
Chronic infection by hepatitis C virus (HCV) is a major risk factor for the development of hepatocellular carcinoma (HCC). Despite the clear clinical importance of virus-associated HCC, the underlying molecular mechanisms remain largely unclarified. Oxidative stress, in particular, DNA lesions associated with oxidative damage, plays a major role in carcinogenesis, and is strongly linked to the development of many cancers, including HCC. However, in identifying hepatocytes with HCV viral RNA, estimates of the median proportion of HCV-infected hepatocytes have been found as high as 40% in patients with chronic HCV infection. In order to explore the gene alternation and association between different viral loads of HCV-infected cells, we established a method to dissect high and low viral load cells and examined the expression of DNA damage-related genes using a quantitative polymerase chain reaction array. We found distinct expression patterns of DNA damage-related genes between high and low viral load cells. This study provides a new method for future study on virus-associated gene expression research.
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Affiliation(s)
- Shu-Chi Wang
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jeng-Fu Yang
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chao-Ling Wang
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Feng Huang
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Internal Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Yin Lin
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-You Chen
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Ting Lo
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Yen Lee
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuan-Ta Wu
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-I Lin
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Meng-Hsuan Hsieh
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hung-Yi Chuang
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Kung Ho
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Lung Yu
- Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Internal Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Yen Dai
- Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Occupational and Environmental Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Hepatobiliary Division, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Faculty of Internal Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center for Infectious Disease and Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Chang WK, Chung HP, Lin YY, Chen YH. Electro-optic spectral tuning in a fan-out double-prism domain periodically poled lithium niobate intracavity optical parametric oscillator. Opt Lett 2016; 41:3904-3907. [PMID: 27519119 DOI: 10.1364/ol.41.003904] [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
We report on the design and experimental demonstration of an electro-optically tunable, pulsed intracavity optical parametric oscillator (IOPO) based on a unique fan-out double-prism domain periodically poled lithium niobate (DPD PPLN) in a diode-pumped Nd:YVO4 laser. The PPLN device combines the functionalities of fan-out and ramped duty-cycle domain structured nonlinear crystals, working simultaneously as a continuous grating-period quasi-phase-matched optical parametric downconverter and an electro-optic beam deflector/Q switch in the laser system. When driving the fan-out DPD PPLN with a voltage pulse train and varying the DC offset of the pulse train, a pulsed IOPO was realized with its signal and idler being electro-optically tunable over the 1880 and 2453 nm bands at spectral tuning rates of 13.5 (measured) and 25.8 (calculated) nm/(kV/mm), respectively.
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Li KY, Shan QS, Zhu RP, Yin H, Lin YY, Wang LQ. Carrier transport in quantum dot quantum well microstructures of the self-assembled CdTe/CdS/ligand core-shell system. Nanoscale 2015; 7:7906-7914. [PMID: 25858330 DOI: 10.1039/c5nr00494b] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The study on the quantum dot quantum well (QDQW) microstructure modified by choosing different ligands containing a sulfhydryl group is of significance because it enables one to regulate photoexcited free charge carriers' (FCCs') transport behaviours in high-quality CdTe/ligand QDs via a self-assembled way. The photoelectron characteristics of ligand-capped CdTe nanoparticles were probed by a combination of surface photovoltaic (SPV) and photoacoustic technologies, supplemented by a computer simulation method of the CASTEP module. The experiment reveals that the D-value ΔEWi obtained by the associated two parameters of the SPV spectroscopy was closely related to the quantum confinement energy in the self-assembled CdTe/CdS/ligand core-shell system. In the paper the D-value was termed the depth of QWs, which were buried in the space charge regions located in the graded-band-gap and on either side of the shell-CdS. Obvious resonance quantum tunnelling may occur in the energy band structure with deep QWs on using certain ligands, resulting in an extended diffusion length of the FCCs on illumination of the photon energy hν ≥ Eg, core-CdTe, and in a strong SPV response at a specific wavelength region. In addition, the carrier-longitudinal optical phonon interaction is the reciprocal of the carriers' lifetime. The d-frontier orbital in the graded-band-gap plays an important role in both the microstructure and the resonance quantum tunnelling of the QDQW system according to the CASTEP calculations.
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Affiliation(s)
- K Y Li
- State Key Laboratory of Metastable Materials Manufacture Technology & Science, Yanshan University, Qinhuangdao 066004, China.
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Abstract
OBJECTIVES Histamine is an important chemical mediator in both nasal and bronchial inflammation in patients with allergic rhinitis and asthma. The effect of histamine receptor-1 antagonists on nasal mucosa in vivo is well known, however, the effect on tracheal smooth muscle has rarely been explored. The purpose of this study was to determine the effects of fexofenadine on isolated tracheal smooth muscle in vitro. METHODS Six tracheal strips were used for each experiment, and one untreated strip served as a control. We examined the effectiveness of fexofenadine on isolated rat tracheal smooth muscle by testing the effect on: 1) tracheal smooth muscle resting tension; 2) contraction caused by 10E-6 M methacholine as a parasympathetic mimetic; and 3) electrically induced tracheal smooth muscle contractions. RESULTS The results indicated that addition of methacholine caused the trachea to contract in a dose-dependent manner. The addition of fexofenadine at a dose of 10E-4 M elicited a significant relaxation response compared to 10E-6 M methacholine-induced contraction. There were no detectable changes in the peak tension of electrical field stimulation-induced contractions in the fexofenadine group. CONCLUSION High concentrations of fexofenadine had an anti-cholinergic effect. In addition to diminishing histamine-mediated allergic symptoms, fexofenadine may have a potentially therapeutic implication in alleviating asthma-related symptoms due to reducing methacholine-induced contractions of tracheal smooth muscle though these aspects were not studied.
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Abstract
In 2009, more than 50% of vine type French beans were found bearing severe viral symptoms in a vegetable garden in Nantou County, Taiwan. Infected plants were stunted and exhibited pronounced mottling symptoms on their leaves. The symptomatic plants were mechanically inoculated on Chenopodium quinoa and local lesions developed 7 to 10 days after inoculation. The virus source established by back isolation the single lesion from C. quinoa on French beans developed symptoms similar to those found in the field. Host range test showed that this isolate could only infect leguminous plants, including soybean, mung bean, pea, peanut, asparagus bean, cowpea, adzuki bean, and lima bean, but not cucurbitaceous and solanaceous plants. Since only Cucumber mosaic virus (CMV) has been reported in Taiwan to induce similar symptoms in French beans, we tested both the field collected and inoculated French beans by CMV antiserum in ELISA but obtained a negative result. Due to subsequent electron microscopy studies that found potyvirus and carlavirus like particles in the leaf dips of infected French beans, we conducted reverse transcription (RT)-PCR using generic degenerate primers for potyviruses (Hrp5/Pot1 (2) and PotZ/Pot1 (3)) and carlaviruses (Decarla-u2 (5'-TGCACTGARTCMGAYTATGARGCYTT-3' and Decarla-d1 (5'-GCACATRTCRTCVCCDGCAAA-3') previously designed in our lab. No amplification was found from the potyvirus primers, while the carlavirus one gave an expected amplicon of 285 bp, which was found sharing 81% nucleotide sequence identity with the replicase gene of Cowpea mild mottle virus (CpMMV) (GenBank Accession No. FJ560903). A primer pair (CpMMV-CPu: 5'-TTTACTCTTAggTWATggAgTC-3' and CpMMV-CPd: 5'-CCTATTAAAACACACAAHTCAAA-3') was thus designed to amplify the complete coat protein (CP) gene based on the reported CP sequences and obtained an expected 867-bp product from our French bean isolate. This 867-bp sequence (JX020701) was confirmed to have 97.6% amino acid sequence identities with the CP gene of a Puerto Rican CpMMV isolate (GU191840). In a separate survey, another isolate from asparagus bean (CpMMV-V) causing mild mottling symptom was obtained. Analyses of the CP gene of CpMMV-V (JX070669) confirmed that it shared 88.8% and 97.8% of nucleotide and amino acid sequence identities with the French bean isolate, respectively. Different from most carlaviruses with aphid transmissibility, CpMMV has been shown to be transmitted non-persistently by whiteflies (1). Both CpMMV isolates from Taiwan were confirmed to be transmitted by silver leaf whiteflies (Bemicia argentifolii Bellows and Perring). This is the first record of whitefly transmissible legume virus in Taiwan. Since whitefly has been a problem in agriculture worldwide, CpMMV can be a new emerging threat for Taiwan's legume crop production. References: (1) M. Iwaki et al. Plant Dis. 66:365, 1982. (2) S. S. Pappu et al. J. Virol. Methods 41:9, 1993. (3) F. M. Zerbini et al. Phytopathology 85:746.
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Affiliation(s)
- C A Chang
- Graduate Institute of Biochemical Science and Technology, Chaoyang University of Technology, Wufeng, Taichung, Taiwan
| | - L Y Chien
- Graduate Institute of Biochemical Science and Technology, Chaoyang University of Technology, Wufeng, Taichung, Taiwan
| | - C F Tsai
- Graduate Institute of Biochemical Science and Technology, Chaoyang University of Technology, Wufeng, Taichung, Taiwan
| | - Y Y Lin
- Graduate Institute of Biochemical Science and Technology, Chaoyang University of Technology, Wufeng, Taichung, Taiwan
| | - Y H Cheng
- Plant Pathology Division, Agricultural Research Institute, Wufeng, Taichung, Taiwan
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Chang WK, Chen YH, Chang HH, Chang JW, Chen CY, Lin YY, Huang YC, Lin ST. Two-dimensional PPLN for simultaneous laser Q-switching and optical parametric oscillation in a Nd:YVO4 laser. Opt Express 2011; 19:23643-23651. [PMID: 22109389 DOI: 10.1364/oe.19.023643] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report on a tunable intracavity optical parametric oscillator (IOPO) achieved using a two-dimensional (2D) periodically poled lithium niobate (PPLN) as simultaneously an electro-optic (EO) Bragg Q-switch and an optical frequency mixer (OFM) in a diode-pumped Nd:YVO(4) laser. The 2D periodic domain inversion structure is designed to provide two orthogonal reciprocal vectors to respectively satisfy the phase-matching conditions required by the two quasi-phase-matching devices (i.e., the PPLN EO Bragg deflector and the PPLN OFM). At a ~140-V Q-switching voltage and a 1-kHz switching rate, we obtained a signal wave at 1550 nm with a pulse energy of 9.7 μJ (corresponding to a peak power of ~2.4 kW) from the IOPO at 9.1-W diode pump power. Simultaneously we also observed multi-wavelength generation from the system originating in the single-pass parametric conversions in the 2D nonlinear photonic crystal structure. Temperature tuning of the IOPO signal wavelength in the eye-safe region was also demonstrated.
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Affiliation(s)
- W K Chang
- Department of Optics and Photonics, National Central University, Jhongli 320, Taiwan
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Feng XG, Xu XJ, Ye S, Lin YY, Chen P, Zhang XJ, Lin GY, Lin XQ. Recent Chlamydia pneumoniae infection is highly associated with active ankylosing spondylitis in a Chinese cohort. Scand J Rheumatol 2011; 40:289-91. [PMID: 21469941 DOI: 10.3109/03009742.2011.560891] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The aim of the present study was to investigate the presence of anti-Chlamydia pneumoniae (Cp) antibodies in patients with ankylosing spondylitis (AS) to determine whether there is an association with AS disease activity. METHODS Seventy-nine AS outpatients and 73 normal controls were enrolled in this case-control study. Serum anti-Cp immunoglobulins (CpIg) were detected by enzyme-linked immunosorbent assay (ELISA). Antibodies to Epstein-Barr virus (EBV), cytomegalovirus (CMV), and Chlamydia trachomatis (Ct) were also measured. Clinical and experimental data were collected, and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) was determined. Patients with positive Cp IgM or Cp IgA were considered to have had a recent Cp infection. RESULTS Cp IgG was detected in the majority of AS patients and also controls (88.8% vs. 91.8%, respectively). The seroprevalence of Cp IgA and Cp IgM was significantly higher in AS patients than in the controls (51.9% vs. 31.5%, p = 0.010 for Cp IgA; 79.7% vs. 20.5%, p < 0.0001 for Cp IgM). Seropositivity of Cp IgM was associated with elevation of the disease activity index, including erythrocyte sedimentation rate (ESR; p = 0.021), C-reactive protein (CRP; p = 0.007) and the BASDAI (p = 0.009). Persistent positive Cp IgM was associated with active disease, while seroreversion of Cp IgM was associated with a reduction in these disease activity indices. There was no correlation between Cp IgM or Cp IgA and symptomatic upper respiratory infections or other clinical manifestations. CONCLUSIONS Recent Cp infections occur frequently in AS patients and Cp IgM antibody is correlated with active disease. These findings indicate that Cp infections may be a triggering factor for active AS.
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Affiliation(s)
- X G Feng
- Department of Rheumatology, Dongfang Hospital, Fuzhou, P R China.
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Sun CY, Lee CC, Lin YY, Wu MS. In younger dialysis patients, automated peritoneal dialysis is associated with better long-term patient and technique survival than is continuous ambulatory peritoneal dialysis. Perit Dial Int 2011; 31:301-7. [PMID: 21282373 DOI: 10.3747/pdi.2010.00072] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND In the U.S. Renal Data System registry, technique and patient survival are similar with automated peritoneal dialysis (APD) and continuous ambulatory peritoneal dialysis (CAPD). The clinical outcomes of APD and CAPD in various age groups have not been clarified. OBJECTIVES We investigated whether patient and technique survival are different for incident dialysis patients treated with APD or CAPD in two age groups. METHODS Our retrospective study of prospectively collected data included 282 incident peritoneal dialysis (PD) patients (161 on APD, 121 on CAPD). Patients on PD for less than 3 months were excluded. The patients were divided into those less than 65 years of age and those 65 years of age or older. Overall mortality and technique failure were the primary endpoints of the study. Hazard ratios (HRs) for mortality and technique failure were calculated by the Cox proportional hazards model and were adjusted for age, sex, diabetes mellitus, initial peritoneal equilibration test (PET), weekly peritoneal and renal creatinine clearances, and PD caregiver (self or other). RESULTS The characteristics and clinical data were not significantly different between patients on APD and CAPD, except for age and sex. The adjusted risk for overall mortality was not different between patients on APD and CAPD (HR: 0.72; 95% CI: 0.44 to 1.20; p = 0.207). The adjusted risk for technique failure was lower in APD patients than in CAPD patients (HR: 0.58; 95% CI: 0.34 to 0.98; p = 0.041). In patients less than 65 years of age, those on APD had a significantly lower risk of mortality (HR: 0.35; 95% CI: 0.16 to 0.75; p = 0.007) and technique failure (HR: 0.52; 95% CI: 0.28 to 0.95; p = 0.034) than did those on CAPD. In patients 65 years of age and older, those on APD had risks for mortality (HR: 1.14; 95% CI: 0.53 to 2.46; p = 0.730) and technique failure (HR: 0.51; 95% CI: 0.17 to 1.50; p = 0.220) that were similar to those of patients on CAPD. Nutrition status, including serum albumin and protein catabolic rate, was not significantly different between patients on APD and on CAPD, in either younger or older patients. CONCLUSIONS Younger Chinese patients on APD have better patient and technique survival than do those on CAPD. However, there is a strong possibility that this benefit may be confounded or accounted for by baseline differences between the APD and CAPD populations.
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Affiliation(s)
- Chiao-Yin Sun
- Division of Nephrology, Chang Gung Memorial Hospital, Keelung, Taiwan
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Chen CY, Yang CCH, Lin YY, Kuo TBJ. Locomotion-induced hippocampal theta is independent of visual information in rats during movement through a pipe. Behav Brain Res 2011; 216:699-704. [PMID: 20888366 DOI: 10.1016/j.bbr.2010.09.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 09/15/2010] [Accepted: 09/20/2010] [Indexed: 11/19/2022]
Affiliation(s)
- C Y Chen
- Institute of Brain Science, National Yang-Ming University, Taipei 11221, Taiwan
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Kamiya T, Tanimoto K, Tanne Y, Lin YY, Kunimatsu R, Yoshioka M, Tanaka N, Tanaka E, Tanne K. Effects of mechanical stimuli on the synthesis of superficial zone protein in chondrocytes. J Biomed Mater Res A 2010; 92:801-5. [PMID: 19280634 DOI: 10.1002/jbm.a.32295] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Superficial zone protein (SZP) has been demonstrated to contribute to the boundary lubrication in synovial joints. This study was designed to clarify the modulation of SZP expression by mechanical stress in articular chondrocytes. Cyclic tensile strains of 7 and 21% cell elongation were applied to cultured chondrocytes obtained from porcine mandibular condylar cartilage. The mRNA levels of SZP, IL-1 beta, and TGF-beta1 were examined by a quantitative real-time PCR analysis. Protein level of SZP was examined by Western blotting. The SZP mRNA level was significantly upregulated after 12, 24, and 48 h by 7% elongation. Although SZP mRNA level was upregulated by 21% elongation after 12 h, it decreased to a lower level than the control after 48 h. The TGF-beta1 mRNA level exhibited an almost similar change to SZP. The IL-1 beta mRNA level was not changed markedly by 7% elongation. However, the IL-1 beta mRNA level was significantly increased by a 12-h application of 21% elongation. Western blot analysis revealed that the SZP expression was increased by 7% elongation, but decreased remarkably by 21% elongation. It is suggested from these findings that the SZP expression level in the chondrocytes is enhanced by optimal mechanical stimuli, but inhibited by excessive loading partly affected by TGF-beta1 and IL-1 beta, leading to the deterioration of joint lubrication.
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Affiliation(s)
- T Kamiya
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
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Lin ST, Lin YY, Tu RY, Wang TD, Huang YC. Fiber-laser-pumped CW OPO for red, green, blue laser generation. Opt Express 2010; 18:2361-2367. [PMID: 20174066 DOI: 10.1364/oe.18.002361] [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] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a CW, watt-level, red, green, and blue (RGB) laser pumped by an economical multimode (1-nm linewidth) Yb-fiber laser at 1.064 mum. A singly resonant optical parametric oscillator at 1.56 mum has two intracavity sum-frequency generators for red and blue laser generation. An extracavity second harmonic generator converts the residual pump power into green laser radiation. At 25-W pump power, the laser generated 3.9, 0.456, and 0.49 W at 633, 532, and 450 nm, respectively. The multimode pump laser offers a large temperature bandwidth for operating the RGB OPO without the need of a precision crystal temperature stabilizer.
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Affiliation(s)
- S T Lin
- Department of Electrical Engineering, National Tsinghua University, Institute of Photonics Technologies, Hsinchu, Taiwan.
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Abstract
We report a mid-infrared, CW singly resonant optical parametric oscillator (OPO) with a thermally induced waveguide in its gain crystal. We measured a numerical aperture of 0.0062 for the waveguide at 80-W intracavity power at 3.2 microm. This thermal-guiding effect benefits to the stable operation of an OPO and improves the parametric conversion efficiency by more than a factor of two when compared with that without thermal guiding.
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Affiliation(s)
- S T Lin
- Institute of Photonics Technologies, Department of Electrical Engineering, National Tsing-hua University, Hsinchu, Taiwan
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Luisetti M, Ma S, Iadarola P, Stone PJ, Viglio S, Casado B, Lin YY, Snider GL, Turino GM. Desmosine as a biomarker of elastin degradation in COPD: current status and future directions. Eur Respir J 2009; 32:1146-57. [PMID: 18978133 DOI: 10.1183/09031936.00174807] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Desmosine (DES) and isodesmosine (IDES) are two unusual, tetrafunctional, pyridinium ring-containing amino acids involved in elastin cross-linking. Being amino acids unique to mature, cross-linked elastin, they are useful for discriminating peptides derived from elastin breakdown from precursor elastin peptides. According to these features, DES and IDES have been extensively discussed as potentially attractive indicators of elevated lung elastic fibre turnover and markers of the effectiveness of agents with the potential to reduce elastin breakdown. In the present manuscript, immunology-based and separation methods for the evaluation of DES and IDES are discussed, along with studies reporting increased levels of urine excretion in chronic obstructive pulmonary disease (COPD) patients with and without alpha(1)-antitrypsin deficiency. The results of the application of DES and IDES as surrogate end-points in early clinical trials in COPD are also reported. Finally, recent advances in detection techniques, including liquid chromatography tandem mass spectrometry and high-performance capillary electrophoresis with laser-induced fluorescence, are discussed. These techniques allow detection of DES and IDES at very low concentration in body fluids other than urine, such as plasma or sputum, and will help the understanding of whether DES and IDES are potentially useful in monitoring therapeutic intervention in COPD.
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Affiliation(s)
- M Luisetti
- Laboratory of Biochemistry and Genetics, Institute of Respiratory Disease, IRCCS San Matteo Hospital Foundation, Pavia, Italy.
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Chang CW, Lin YY, Peng CJ, Lin M, Liu RS, Wang SJ, Lin WJ, Wang HE. The robotic radiosynthesis of 5-[(18)F]fluoro-2'-deoxyuridine and its biological characterization. Appl Radiat Isot 2009; 67:1355-61. [PMID: 19307130 DOI: 10.1016/j.apradiso.2009.02.079] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
5-[(18)F]fluoro-2'-deoxyuridine ([(18)F]FUdR) was synthesized using a robotic system as a proliferation probe for PET. [(18)F]FUdR was prepared via radiofluorodestannylation reaction from its organotin precursor. Biodistribution study and microPET imaging of [(18)F]FUdR in NG4TL4 sarcoma-bearing FVB/n mice were performed. The tumor-to-blood and tumor-to-muscle ratio increased steadily from 15 (1.81 and 3.42) to 120min (9.10 and 11.9) post injection. The dynamic microPET imaging demonstrates remarkable radioactivity retention in the tumor, which is consistent with the results of biodistribution study.
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Affiliation(s)
- C W Chang
- Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, No. 155, 2nd Sec., Li-Nong St., Taipei, 112 Taiwan
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Lin ST, Lin YY, Huang YC, Chiang AC, Shy JT. Observation of thermal-induced optical guiding and bistability in a mid-IR continuous-wave, singly resonant optical parametric oscillator. Opt Lett 2008; 33:2338-40. [PMID: 18923615 DOI: 10.1364/ol.33.002338] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We report the observation of thermal-induced optical guiding and bistability in a mid-IR cw, singly resonant optical parametric oscillator (SRO) at approximately 3.2 microm. The SRO employs a MgO:PPLN crystal as the gain medium and a 1-nm-linewidth Yb-fiber laser at 1.064 microm as the pump source. As soon as the pump power reaches the thermal guiding threshold at 16.5 W, the SRO shows a step increase in the parametric efficiency by a factor of 2.5. At 25 W pump power, the SRO generated 5.3 and 1.2 W at 1.58 and 3.23 microm, respectively, with single-longitudinal-mode performance for the 3.23 microm radiation.
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Affiliation(s)
- S T Lin
- Department of Electrical Engineering, Institute of Photonics Technologies, National Tsing-hua University, Hsinchu, Taiwan
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Wang TD, Lin YY, Chen SY, Chiang AC, Lin ST, Huang YC. Low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating. Opt Express 2008; 16:12571-12576. [PMID: 18711493 DOI: 10.1364/oe.16.012571] [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] [Indexed: 05/26/2023]
Abstract
We report a low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating and a 1-mm thick, 45-mm long lithium-niobate planar waveguide. When pumped by an actively Q-switched Nd:YAG laser, the threshold energy and intensity of the parametric oscillator were about 2.2 mJ and 70 MW/cm(2), respectively. The linewidths of the output THz wave were 12 and 134 GHz with and without the intra-cavity grating, respectively.
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Affiliation(s)
- T D Wang
- Department of Electrical Engineering, Institute of Photonics Technologies, National Tsinghua University, Hsinchu 30013, Taiwan
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Wang TD, Lin ST, Lin YY, Chiang AC, Huang YC. Forward and backward terahertz-wave difference-frequency generations from periodically poled lithium niobate. Opt Express 2008; 16:6471-6478. [PMID: 18545351 DOI: 10.1364/oe.16.006471] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report terahertz-wave generation in the wavelength range of 190 - 210 and 457 - 507 microm from forward and backward difference frequency generations, respectively, in a 3.2-cm long multi-grating periodically poled lithium niobate (PPLN) crystal. The grating period of the PPLN crystal varies form 63 to 70 microm in 1-microm increments. The extraordinary refractive index of lithium niobate in the THz-wave range was precisely deduced from the quasi-phase-matching condition of the difference frequency generations.
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Affiliation(s)
- T D Wang
- Institute of Photonics Technologies, Department of Electrical Engineering, National Tsing-hua University, Hsinchu 30013, Taiwan
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Lin ST, Chang GW, Lin YY, Huang YC, Chiang AC, Chen YH. Monolithically integrated laser Bragg Q-switch and wavelength converter in a PPLN crystal. Opt Express 2007; 15:17093-17098. [PMID: 19551001 DOI: 10.1364/oe.15.017093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report a periodically poled lithium niobate (PPLN) crystal for both temperature-insensitive laser Q-switching and temperature-tuned wavelength conversion. The PPLN crystal consists of two sections, a 20.3-mum period section functioning as an electro-optic Bragg grating for Qswitching a diode-pumped Nd:YVO4 laser at 1064 nm and a 31-mum-period section functioning as an optical parametric generator for down converting the generated 1064-nm laser. When driving the PPLN Bragg grating with 170-V voltage pulses, we measured 181 muJ pulse energy at 1064 nm from the Nd:YVO4 laser pumped by 20.4 W diode power. The 181-muJ pulsed laser was further converted into mid-infrared radiation in the monolithic PPLN crystal with 35% parametric efficiency. The wavelengths were broadly tunable in the range of 1.75-1.88 mum (signal) and 2.7-2.44 mum (idler) via temperature without affecting the performance of the PPLN Bragg Qswitch.
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Lin YY, Lin ST, Chang GW, Chiang AC, Huang YC, Chen YH. Electro-optic periodically poled lithium niobate Bragg modulator as a laser Q-switch. Opt Lett 2007; 32:545-7. [PMID: 17392916 DOI: 10.1364/ol.32.000545] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We report an electro-optic Bragg modulator using a periodically poled lithium niobate (PPLN) crystal. We measured a half-wave voltage of 160 V when transmitting a 1064 nm laser through a 14.2 mm long, 780 microm thick, 20.13 microm period PPLN crystal at the Bragg angle. We also demonstrated a Q-switched Nd:YVO(4) laser using such a PPLN Bragg modulator as its Q-switch, producing 7.8 ns, 201 microJ pulses at a 10 kHz repetition rate when pumped by a 19.35 W diode laser at 808 nm.
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Affiliation(s)
- Y Y Lin
- Institute of Photonics Technologies, Department of Electrical Engineering, National Tsinghua University, Hsinchu 30013, Taiwan
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Lin YY, Chiang YF, Huang YC, Chiang AC, Lin ST, Chen YH. Light-enhanced electro-optic spectral tuning in annealed proton-exchanged periodically poled lithium niobate channel waveguides. Opt Lett 2006; 31:3483-5. [PMID: 17099757 DOI: 10.1364/ol.31.003483] [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] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We report the observation of light-enhanced electro-optic spectral tuning in annealed proton-exchanged, asymmetric domain-duty-cycle periodically poled lithium niobate (PPLN) channel waveguides for second-harmonic generation. The spectral tuning rate was increased rapidly from 0.07 nm/(kV/mm) to a saturated value of 0.32 nm/(kV/mm) in a 30%/70% domain-duty-cycle PPLN waveguide when the fundamental pump power near 1534 nm was increased from 0.6 to 46 mW. The second-harmonic laser power at 767 nm was identified to be the source enhancing the spectral tuning.
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Affiliation(s)
- Y Y Lin
- Department of Electrical Engineering, National Tsinghua University, Hsinchu, Taiwan
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Lin YY, Chen SY, Chiang AC, Tu RY, Huang YC, Chen YF, Chen YH. Single-longitudinal-mode, tunable dual-wavelength,CW Nd:YVO(4) laser. Opt Express 2006; 14:5329-5334. [PMID: 19516699 DOI: 10.1364/oe.14.005329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a single-longitudinal-mode CW diode-pumped Nd:YVO(4) laser emitting at both 1064 and 1342 nm with 10% optical efficiency at 20-W pump power. The measured spectral widths at 1064 and 1342 nm were less than 450 MHz and 400 MHz, respectively. The two emission wavelengths can be independently tuned over the lasing bandwidths of the dual-wavelength laser.
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Chiang AC, Wang TD, Lin YY, Lin ST, Lee HH, Huang YC, Chen YH. Enhanced terahertz-wave parametric generation and oscillation in lithium niobate waveguides at terahertz frequencies. Opt Lett 2005; 30:3392-4. [PMID: 16389842 DOI: 10.1364/ol.30.003392] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We observed parametric-generation efficiency of 1.61% from 1064 to 1071 nm and at 162 microm in a 0.5 mm thick, 45 mm long z-cut congruent lithium niobate waveguide with a pump energy of 2.2 mJ and a pump pulse width of 5.8 ns. We also measured an ultralow-threshold intensity of 70 MW/cm2 for a 1064 nm pumped parametric oscillator resonating at 1071 nm and emitting at 162 microm with a 1 mm thick, 45 mm long lithium niobate waveguide.
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Affiliation(s)
- A C Chiang
- Institute of Photonics Technologies, Department of Electrical Engineering, National Tsinghua University, Hsinchu 300, Taiwan
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Fung HC, Chen CM, Wu YR, Hsu WC, Ro LS, Lin JC, Chang KH, Wang HK, Lin SJ, Chan H, Lin YY, Wei SL, Hsu Y, Hwang JC, Tung LC, Lee-Chen GJ. Heat shock protein 70 and tumor necrosis factor alpha in Taiwanese patients with dementia. Dement Geriatr Cogn Disord 2005; 20:1-7. [PMID: 15832029 DOI: 10.1159/000085067] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [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] [Accepted: 11/24/2004] [Indexed: 11/19/2022] Open
Abstract
This study was to determine whether polymorphisms of heat shock protein 70-1 (HSP70-1) and tumor necrosis factor alpha (TNF-alpha) are associated with the risk of Alzheimer's disease (AD) and vascular dementia (VaD). Using the criteria of the NINCDS-ADRDA and NINDS-AIREN, 125 AD patients, 57 VaD patients and 109 ethnically matched nondemented controls were enrolled. The HSP70-1 -110 A/C and TNF-alpha -1031 T/C, -863 C/A and -857 C/T polymorphisms were analyzed by means of genotype or haplotype association methods. None of the four genotypes examined showed a statistically significant difference in genotype distribution between the AD cases and controls. However, the HSP70-1 -110 CC genotype occurred more frequently among AD cases (p=0.0821; odds ratio: 2.08; 95% confidence interval, CI: 0.92-4.98). The overall genotype distribution among the VaD cases tended to be different at the HSP70-1 -110 and TNF-alpha -1031 sites (p=0.0604 and 0.0316, respectively). The HSP70-1 -110 CC genotype was more frequent (p=0.0459), and the association of the -110 CC genotype with VaD was evident (p=0.0207; odds ratio: 3.22; 95% CI: 1.20-8.87). The more frequent TNF-alpha -1031 TC genotype (p=0.0614) was also evidently associated with VaD (p=0.0209; odds ratio: 2.32; 95% CI: 1.14-4.78). Multivariate analysis demonstrated the synergistic effect of the HSP70-1 -110 CC and TNF-alpha -1031 TC/CC genotypes on VaD (p=0.0091; odds ratio: 10.09; 95% CI: 2.01-75.97). Haplotype analysis among TNF-alpha -1031, -863, -857 sites revealed that -1031C-857C may act as a risk haplotype among VaD cases (p=0.0132, odds ratio: 2.26; 95% CI: 1.19-4.33). Our results suggest a potential protective role for HSP70 in both VaD and AD, whereas TNF-alpha may act as a risk factor only for VaD, and not for AD.
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Affiliation(s)
- H C Fung
- Second Department of Neurology, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taipei, Taiwan
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Chen YH, Lin YY, Chen CH, Huang YC. Monolithic quasi-phase-matched nonlinear crystal for simultaneous laser Q switching and parametric oscillation in a Nd:YVO4 laser. Opt Lett 2005; 30:1045-7. [PMID: 15906998 DOI: 10.1364/ol.30.001045] [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] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
We report the performance of a periodically poled lithium niobate (PPLN) crystal inside a diode-pumped Nd:YVO4 laser for simultaneous laser Q switching and optical parametric oscillation. The monolithic PPLN crystal consists of two sections, a 1-cm-long 14-microm-period electrode-coated section and a 4-cm-long 30-microm-period section, functioning as a low-voltage Pockels cell and a quasi-phase-matched parametric gain medium, respectively. At a 150-V Q-switching voltage and a 6-kHz switching rate, we measured 25-microJ pulse energy and 4-kW peak power at 1.55 microm with 9-W absorbed diode power.
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Affiliation(s)
- Y H Chen
- Institute of Optical Sciences, National Central University, Jhongli 320, Taiwan.
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Tsay TT, Wu ST, Lin YY. Evaluation of Asteraceae Plants for Control of Meloidogyne incognita. J Nematol 2004; 36:36-41. [PMID: 19262785 PMCID: PMC2620738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
Of the 56 species and 43 genera of Asteraceae tested, 9 were highly resistant or immune to Meloidogyne incognita and did not form root galls. Twenty-six species and six cultivars had 25% or fewer roots galled and were considered moderately resistant to M. incognita. Pre-planting Cosmos bipinnatus (F190), Gaillardia pulchella, Tagetes erecta, Tithonia diversifolia, or Zinnia elegans (F645) reduced root galling and M. incognita J2 in and around Ipomoea reptans. Amendment of soils with roots, stems, or leaves of G. pulchella was effective in controlling M. incognita on I. reptans. Tissue extracts of G. pulchella were lethal to various plant-parasitic nematodes but were innocuous to free-living nematodes. Root exudates of G. pulchella were lethal to J2 of M. incognita and were inhibitory to the hatch of eggs at the concentration of 250 ppm or higher. Gaillardia pulchella could be used to manage M. incognita as a rotation crop, a co-planted crop, or a soil amendment for control of root-knot nematode.
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Lin YY, Shih YH, Chang KP, Lee WT, Yu HY, Hsieh JC, Yeh TC, Wu ZA, Ho LT. MEG localization of rolandic spikes with respect to SI and SII cortices in benign rolandic epilepsy. Neuroimage 2004; 20:2051-61. [PMID: 14683709 DOI: 10.1016/j.neuroimage.2003.08.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The purpose of this study was to study the relationship between interictal spike sources and somatosensory cortices in benign rolandic epilepsy of childhood (BREC) using a whole-scalp neuromagnetometer. We recorded spontaneous magnetoencephalography (MEG) and EEG signals and cortical somatosensory-evoked magnetic fields (SEFs) to electric stimulation of the median nerve in 9 children with BREC. Interictal rolandic discharges (RDs) and SEFs were analyzed by equivalent current dipole (ECD) modeling. Based on the orientation and locations of corresponding ECDs, we compared generators of RDs with primary (SI) and second somatosensory cortices (SII). Our results showed that RDs and SII responses had similar ECD orientation on the magnetic field maps. The ECDs of RDs were localized 15.3 +/- 1.9 and 12.2 +/- 2.8 mm anterior to SI and SII, respectively. The spatial distance on average from the location of RDs to SII (21.9 +/- 1.6 mm) cortex was significantly shorter than to SI cortex (29.7 +/- 1.7 mm) (P<0.01, Wilcoxon signed-rank test). In conclusion, the cortical generators for RDs in patients with BREC are localized in the precentral motor cortex, closer to hand SII than to SI cortex.
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Affiliation(s)
- Y Y Lin
- Integrated Brain Research Unit, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan.
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Abstract
BACKGROUND Although laparoscopy is commonly adopted for the diagnosis and management of various medical or surgical problems, its use for patients with peritoneal dialysis has seldom been addressed. This retrospective study analyzes the indications and clinical effects of this procedure. METHODS A retrospective chart was drawn up and a videotape review performed for 18 laparoscopic procedures involving 198 patients receiving peritoneal dialysis on a long-term basis at our dialysis unit from May 1992 to June 2002. The clinical and demographic parameters in this study included gender, age, underlying renal diseases, duration of peritoneal dialysis before laparoscopy, indications of laparoscopic intervention, laparoscopic findings, time of operation, laparoscopic procedures, postoperative complications, mortality, and catheter results. RESULTS A total of 18 laparoscopic procedures were performed in 17 uremia patients, with indications including catheter malfunction in five cases, preimplantation evaluation of peritoneal space in three cases, evaluation of the etiology underlying intractable peritonitis in nine cases, and verification of the cause for dialysate leakage in one case. Four (80%) of the five catheter malfunctions were successfully corrected, including one case of catheter migration and three cases of omental wrapping, whereas correction failed in the remaining case because of severe bowel adhesion. New catheter placement after adhesiolysis was successful in all three cases of preimplantation peritoneal evaluation (100%). Of the nine patients whose peritonitis episodes were evaluated, two were found to have secondary peritonitis, two had fungal peritonitis; one had tuberculous peritonitis and four had bacterial peritonitis. In the case of persistent exit-site dialysate leakage, laparoscopy showed a penetrating injury of the abdominal wall, raising a strong suspicion of iatrogenic injury during the tunneling maneuvers in initial catheter placement. Two conversions to laparotomy were performed: one to repair the penetrating injury and the other to save the life of a patient threatened by severe fungal peritonitis with abdominal cocoon formation. The laparoscopic procedures lasted 20 to 150 min (average, 50 min). Despite one instance of postoperative hydrocele, there was no operative mortality. CONCLUSIONS The analytical results of this study demonstrate that the current video-assisted laparoscopic technique is an effective means for managing several problems related to peritoneal dialysis such as catheter malfunction, preimplantation evaluation, location of the source of the dialysate leak, and assessment of the causes for peritonitis. Thus, this technique should always be considered when the these problems arise.
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Affiliation(s)
- S C Jwo
- Division of General Surgery, Chang Gung Memorial Hospital, 222 Mai-Chin Road, Keelung, Taiwan 20442, Republic of China
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Lin YY, Shih YH, Hsieh JC, Yu HY, Yiu CH, Wong TT, Yeh TC, Kwan SY, Ho LT, Yen DJ, Wu ZA, Chang MS. Magnetoencephalographic yield of interictal spikes in temporal lobe epilepsy. Comparison with scalp EEG recordings. Neuroimage 2003; 19:1115-26. [PMID: 12880837 DOI: 10.1016/s1053-8119(03)00181-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
To compare magnetoencephalography (MEG) with scalp electroencephalography (EEG) in the detection of interictal spikes in temporal lobe epilepsy (TLE), we simultaneously recorded MEG and scalp EEG with a whole-scalp neuromagnetometer in 46 TLE patients. We visually searched interictal spikes on MEG and EEG channels and classified them into three types according to their presentation on MEG alone (M-spikes), EEG alone (E-spikes), or concomitantly on both modalities (M/E-spikes). The M-spikes and M/E-spikes were localized with MEG equivalent current dipole modeling. We analyzed the relative contribution of MEG and EEG in the overall yield of spike detection and also compared M-spikes with M/E-spikes in terms of dipole locations and strengths. During the 30- to 40-min MEG recordings, interictal spikes were obtained in 36 (78.3%) of the 46 patients. Among the 36 patients, most spikes were M/E-spikes (68.3%), some were M-spikes (22.1%), and some were E-spikes (9.7%). In comparison with EEG, MEG gave better spike yield in patients with lateral TLE. Sources of M/E- and M-spikes were situated in the same anatomical regions, whereas the average dipole strength was larger for M/E- than M-spikes. In conclusion, some interictal spikes appeared selectively on either MEG or EEG channels in TLE patients although more spikes were simultaneously identified on both modalities. Thus, simultaneous MEG and EEG recordings help to enhance spike detection. Identification of M-spikes would offer important localization of irritative foci, especially in patients with lateral TLE.
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Affiliation(s)
- Y Y Lin
- Integrated Brain Research Unit, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei 112, Taiwan.
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Abstract
Magnetoencephalographic (MEG) recordings allow noninvasive monitoring of simultaneously active brain areas with reasonable spatial and excellent temporal resolution. Whole-scalp neuromagnetic recordings show activation of contralateral primary (SI) and bilateral second (SII) somatosensory cortices to unilateral median nerve stimulation. Recent MEG studies on healthy and diseased human subjects have shown some functional characteristics of SII cortex. Besides tactile input, the SII cortex also responds to nociceptive afferents. The SII activation is differentially modulated by isometric muscle contraction of various body parts. Lesions in the SII cortex may disturb the self-perception of body scheme. Moreover, the SI and SII cortices may be sequentially activated within one hemisphere, but the SII cortex may also receive direct peripheral input on the ipsilateral side.
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Affiliation(s)
- Y Y Lin
- Brain Research Unit, Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT Espoo, Finland.
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