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Ke TW, Zwane ST, Chiang SF, Chen TW, Yang PC, Chen LC, Lin YS, Chen WTL, Chao KSC, Huang KCY. Prognostic Value of Immune Cells Subsets Within the Tumor Microenvironment in Patients With Rectal Adenocarcinoma. Anticancer Res 2024; 44:787-796. [PMID: 38307574 DOI: 10.21873/anticanres.16870] [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] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/14/2024] [Accepted: 01/15/2024] [Indexed: 02/04/2024]
Abstract
BACKGROUND/AIM One-third of newly diagnosed colorectal cancer cases are rectal cancers. Multimodal treatment regimens including surgery, radiotherapy, and chemotherapy improve local control and survival outcome and decrease tumor relapse for patients with rectal adenocarcinoma (READ). However, stratification of patients to predict their responses is urgently needed to improve therapeutic responses. PATIENTS AND METHODS Immunostainings of CD3+, CD8+, and CD45RO+ immune cell subsets within the tumor microenvironment were evaluated using immunohistochemistry in two hundred seventy-nine READ patients. RESULTS In this study, we found that examination of the adaptive immune response by quantifying CD3+, CD8+, and CD45RO+ immune cell subsets, provides improved and independent prognostic value for patients with READ. Regardless of conventional clinical and pathologic parameters, the densities of T cell subsets were strongly related to a better prognosis in patients with READ. High density of intratumoral immune cells is associated with absence of nodal metastasis, lymphovascular invasion, and perineural invasion. Moreover, high tumor-infiltrating lymphocyte (TIL) subsets were associated with favorable survival outcome in patients with READ, especially high-risk patients with advanced READ. CONCLUSION Immune cell subsets including CD3, CD8, and CD45RO within the tumor microenvironment were independent prognostic factors for patients with READ.
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Affiliation(s)
- Tao-Wei Ke
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
- School of Chinese Medicine & Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Senamile Temhlanga Zwane
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan, R.O.C
| | - Shu-Fen Chiang
- Lab of Precision Medicine, Feng-Yuan Hospital, Ministry of Health and Welfare, Taichung, Taiwan, R.O.C
| | - Tsung-Wei Chen
- Department of Pathology, Asia University Hospital, Asia University, Taichung, Taiwan, R.O.C
| | - Pei-Chen Yang
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
| | - Liang-Chi Chen
- Department of Pathology, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
| | - Yun-Shan Lin
- Department of Pathology, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
| | - William Tzu-Liang Chen
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
- Department of Colorectal Surgery, China Medical University Hsin-Chu Hospital, China Medical University, Hsin-Chu, Taiwan, R.O.C
- Department of Surgery, School of Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - K S Clifford Chao
- Department of Pathology, Asia University Hospital, Asia University, Taichung, Taiwan, R.O.C
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
- Department of Radiotherapy, School of Medicine, China Medical University, Taichung, Taiwan, R.O.C
| | - Kevin Chih-Yang Huang
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan, R.O.C.;
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, Taiwan, R.O.C
- Cancer Biology and Precision Therapeutics Center, China Medical University, Taichung, Taiwan, R.O.C
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Lin YS, Chiang SF, Chen CY, Hong WZ, Chen TW, Chen WTL, Ke TW, Yang PC, Liang JA, Shiau AC, Chao KSC, Huang KCY. Targeting CD73 increases therapeutic response to immunogenic chemotherapy by promoting dendritic cell maturation. Cancer Immunol Immunother 2023:10.1007/s00262-023-03416-4. [PMID: 36881132 DOI: 10.1007/s00262-023-03416-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 08/10/2022] [Accepted: 02/22/2023] [Indexed: 03/08/2023]
Abstract
The CD39-CD73-adenosinergic pathway converts adenosine triphosphate (ATP) to adenosine for inhibiting anti-tumor immune responses. Therefore, targeting CD73 to reinvigorate anti-tumor immunity is considered the novel cancer immunotherapy to eradicate tumor cells. To fully understand the critical role of CD39/CD73 in colon adenocarcinoma (COAD), this study aims to comprehensive investigate the prognostic significance of CD39 and CD73 in stage I-IV COAD. Our data demonstrated that CD73 staining strongly marked malignant epithelial cells and CD39 was highly expressed in stromal cells. Attractively, tumor CD73 expression was significantly associated with tumor stage and the risk of distant metastasis, which suggested CD73 was as an independent factor for colon adenocarcinoma patients in univariate COX analysis [HR = 1.465, 95%CI = 1.084-1.978, p = 0.013]; however, high stromal CD39 in COAD patients was more likely to have favorable survival outcome [HR = 1.458, p = 1.103-1.927, p = 0.008]. Notably, high CD73 expression in COAD patients showed poor response to adjuvant chemotherapy and high risk of distant metastasis. High CD73 expression was inversely associated with less infiltration of CD45+ and CD8+ immune cells. However, administration with anti-CD73 antibodies significantly increased the response to oxaliplatin (OXP). Blockade of CD73 signaling synergistically enhanced OXP-induced ATP release, which is a marker of immunogenic cell death (ICD), promotes dendritic cell maturation and immune cell infiltration. Moreover, the risk of colorectal cancer lung metastasis was also decreased. Taken together, the present study revealed tumor CD73 expression inhibited the recruitment of immune cells and correlated with a poor prognosis in COAD patients, especially patients received adjuvant chemotherapy. Targeting CD73 to markedly increased the therapeutic response to chemotherapy and inhibited lung metastasis. Therefore, tumor CD73 may be an independent prognostic factor as well as the potential of therapeutic target for immunotherapy to benefit colon adenocarcinoma patients.
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Affiliation(s)
- Yun-Shan Lin
- Department of Pathology, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Shu-Fen Chiang
- Lab of Precision Medicine, Feng-Yuan Hospital, Ministry of Health and Welfare, Taichung, 42055, Taiwan, ROC
| | - Chia-Yi Chen
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Wei-Ze Hong
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Tsung-Wei Chen
- Graduate Institute of Biomedical Science, China Medical University, Taichung, 40402, Taiwan, ROC
- Department of Pathology, Asia University Hospital, Asia University, Taichung, 41354, Taiwan, ROC
| | - William Tzu-Liang Chen
- Department of Colorectal Surgery, China Medical University HsinChu Hospital, China Medical University, HsinChu, 302, Taiwan, ROC
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
- Department of Surgery, School of Medicine, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Tao-Wei Ke
- Department of Colorectal Surgery, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
- School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Pei-Chen Yang
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
| | - Ji-An Liang
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan, ROC
- Department of Radiotherapy, School of Medicine, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
| | - An-Cheng Shiau
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, 40402, Taiwan, ROC
| | - K S Clifford Chao
- Proton Therapy and Science Center, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC.
- Graduate Institute of Biomedical Science, China Medical University, Taichung, 40402, Taiwan, ROC.
- Department of Radiation Oncology, China Medical University Hospital, China Medical University, Taichung, Taiwan, ROC.
- Department of Radiotherapy, School of Medicine, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC.
| | - Kevin Chih-Yang Huang
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, 40402, Taiwan, ROC.
- Translation Research Core, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan, ROC.
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Sung YW, Lin YS, Chen YT, Yeh LS. Non-Hodgkin's B-cell lymphoma of the ovary: A case report and review of the literature. Taiwan J Obstet Gynecol 2022; 61:539-543. [PMID: 35595455 DOI: 10.1016/j.tjog.2022.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2021] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE To report a case and review published cases of non-Hodgkin's lymphoma of the ovary. CASE REPORT A 30-year-old female presented with abdominal fullness. Abdominal CT revealed bilateral huge ovarian masses with moderate amount of ascites. Explore laparotomy was performed and the frozen section of right ovarian mass reported to be malignant lymphoma. The final diagnosis was Ann Arbor stage IV diffuse large B cell lymphoma. The patient received six cycles of chemotherapy with RCHOP regimen. She achieved complete remission after the treatment, and there's no evidence of recurrence after 12 months follow up. CONCLUSION Ovarian lymphoma is a rare condition. It could present with findings mimicking ovarian cancer. Chemotherapy is the main treatment option and cytoreductive surgery should be avoided.
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Affiliation(s)
- Yu-Wen Sung
- Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Yun-Shan Lin
- Department of Pathology, China Medical University Hospital, Taichung, Taiwan
| | - Yen-Ting Chen
- Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan
| | - Lian-Shung Yeh
- Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan; School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
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Yang CH, Lin YS, Ou YC, Weng WC, Huang LH, Lu CH, Hsu CY, Tung MC. Short-term stretched penile length analysis for subsequent erectile dysfunction after robotic-assisted radical prostatectomy with bilateral neurovascular bundle preservation. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.03.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Silver diamine fluoride (SDF) is used topically to prevent or arrest dental caries and has been tested clinically in toddlers to elderly adults. Following SDF application, small quantities of silver can be swallowed and absorbed. To monitor silver concentrations, pharmacokinetic studies can be performed. However, pharmacokinetic studies are time-consuming, resource intensive, and challenging to perform in young children. The objective of this study was to develop a physiologically based pharmacokinetic (PBPK) model to predict silver disposition in children. The PBPK model for silver was developed using Simcyp software (version 17.0) based on information obtained from literature sources. The predictive performance of the model was assessed by comparing the predicted PK profiles and parameters with the observed data from published rat and human data following intravenous or oral silver administration. The predicted silver concentrations were within 2-fold of observed blood and tissue silver concentrations in rats and within the 95% confidence interval of observed plasma silver concentrations in healthy human adults. The PBPK model was applied to the pediatric population by accounting for developmental physiological changes. For a given SDF dose, the simulated peak silver concentrations were 5.2-, 4.3-, 2.7-, and 1.3-fold higher in children aged 1 to 2, 2 to 4, 5 to 10, and 12 to 17 y, respectively, compared to adults. As silver is reportedly excreted in the bile, the half-life of silver was comparable in all ages and plasma and tissue silver concentrations were predicted to return to baseline levels within 2 wk after SDF application. The simulation in children suggests that conventional SDF application to teeth to prevent or arrest dental caries results in plasma and tissue silver concentrations lower than toxic concentrations. PBPK modeling offers a novel approach to studying dental exposures in younger children, where pharmacokinetic studies would be difficult to conduct.
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Affiliation(s)
- K-F Chen
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - P Milgrom
- Department of Oral Health Sciences, University of Washington, Seattle, WA, USA
| | - Y S Lin
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
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Pan YP, Wang SY, Liu XY, Lin YS, Ma LX, Feng Y, Wang Z, Chen L, Wang YH. 3D nano-bridge-based SQUID susceptometers for scanning magnetic imaging of quantum materials. Nanotechnology 2019; 30:305303. [PMID: 30965292 DOI: 10.1088/1361-6528/ab1792] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We designed and fabricated a new type of superconducting quantum interference device (SQUID) susceptometers for magnetic imaging of quantum materials. The 2-junction SQUID sensors employ 3D Nb nano-bridges fabricated using electron-beam lithography. The two counter-wound balanced pickup loops of the SQUID enable gradiometric measurement and they are surrounded by a one-turn field coil for susceptibility measurements. The smallest pickup loop of the SQUIDs were 1 μm in diameter and the flux noise was around 1 μФ0/√Hz at 100 Hz. We demonstrate scanning magnetometry, susceptometry and current magnetometry on some test samples using these nano-SQUIDs.
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Affiliation(s)
- Y P Pan
- Department of Physics and State Key Laboratory of Surface Physics, Fudan University, Shanghai 200438 People's Republic of China. Center for Excellence in Superconducting Electronics, State Key Laboratory of Functional Material for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050 People's Republic of China
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Liu Y, Zhao DH, Lin YS. [Congenital middle ear malformation: clinical analysis and discussion of classification]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:481-488. [PMID: 31315353 DOI: 10.3760/cma.j.issn.1673-0860.2019.07.001] [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 clinical characteristics and appropriate surgical procedures, and discuss the classification of congenital middle ear malformation. Methods: All cases were from the Center of Otorhinolaryngology, the Sixth Medical Center of Department of PLA General Hospital. All of these cases, including 26 male patients (ears) , 10 female patients (11 ears) , aged from 7 to 57 years old, had normal external auditory canal, tympanic membrane, conductive hearing loss, type A tympanogram and negative Gelle's test. Tympanoplasty was performed in all cases. The deformity was classified to three types,i.e., Type I (stapes foot plate mobility): Ⅰa, ossicular chain deformity with normal stapes suprastructure; Ⅰb, ossicular chain deformity with abnormal stapes suprastructure; Type Ⅱ (stapes foot plate fixation): Ⅱ a,normal ossicular chain, Ⅱ b, ossicular chain malformation; and Type Ⅲ: vestibular window osseous atresia or undeveloped, or with round window atresia. The malformation of type Ⅱ and Ⅲ may be accompanied with abnormal facial nerve. In addition, the papers on middle ear malformation published from 1982 to 2017 were analyzed retrospectively. The clinical data of 451 ears malformation were summarized. Results: According to the revisional classification criteria in 37 ear samples from our hospital, 20 ears were type I. 6 type Ⅰa cases were used PORP (partial ossicular replacement prosthesis) to reconstruct the ossicular chain; 14 type Ⅰb cases were used TORP (total ossicular replacement prosthesis) to reconstruct the ossicular chain. For the 5 ears of type Ⅱ, 2 of which were type Ⅱ a and 3 were type Ⅱ b. 4 ear samples of type Ⅱ were implanted with Piston ossicular prosthesis, 1 was implanted with TORP in which the ossificated foot plate was removed with periosteum preserved. 12 ear samples were type Ⅲ, with vestibular window osseous atresia, facial nerve malformation, and stapes suprastructure malformation. The pistons ossicular prosthesis were implanted in vestibular window in 3 ears with facial nerve covering vestibular window partially. The surgery had to be given up in 5 ears, and TORP was implanted in 4 ears at the opening with preserved periosteum at the beginning of the tympanic scala because of facial nerve covering vestibular window totally. 30 ears with complete follow-up data had no sensorineural hearing loss and the average air-bone conduction decreased 23.3±10.7 dB (P<0.05).There were 234 ears of type Ⅰ in 451 ears of congenital middle ear malformation reported in the literature. 113 of which were type Ⅰa, the basic surgery was ossicular chain shaking and artificial or autogenous PORP implantation. Type Ⅰb was 121 ears, with autogenous or artificial TORP and PORP. Type Ⅱ was125 ears, including type Ⅱa 22 ears, Ⅱb 60 ears, and no subclassification for 43 ears. The surgery of type Ⅱ was the same as otosclerosis. The vestibular window atresia of type Ⅲ was 92 ears, the surgery of 17 ears had to be abandoned, the other ears underwent vestibular window, promontory or semicircular canal opening to reconstruct hearing with Piston, autogenous or artificial TORP. Conclusion: Referring to the classification of congenital middle ear malformation combining with appropriate surgical materials and methods, otologists can better understand and choose appropriate surgical method to the middle ear malformation.
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Affiliation(s)
- Y Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Medical Center of People's Liberation Army General Hospital, Beijing 100048, China
| | - D H Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Medical Center of People's Liberation Army General Hospital, Beijing 100048, China
| | - Y S Lin
- Department of Otorhinolaryngology Head and Neck Surgery, the Sixth Medical Center of People's Liberation Army General Hospital, Beijing 100048, China
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Abstract
Researchers have suggested that combining topical fluoride with an antiseptic to reduce cariogenic bacteria may be more effective than fluoride application alone in preventing dental caries. In previous studies, povidone iodine (PVP-I), a widely used bactericidal antiseptic, and sodium fluoride (NaF), used to foster remineralization of enamel, were applied sequentially topically and shown to be safe and effective. The study aim was to characterize the kinetics of iodine and fluoride following topical application of a single combination PVP-I and NaF anticaries varnish in healthy adults. Sixteen participants (aged 23 to 57 y) participated in a pharmacokinetics study following the application of 0.4 mL varnish containing 10% (w/v) PVP-I and 5% (w/v) NaF. Serum and urine samples were collected at various time points over 24 h following application of varnish. Iodine and fluoride concentrations were analyzed, and for each time point, baseline concentrations were subtracted from observed values. Following varnish application, 2 of 16 participants had nearly undetectable baseline-corrected iodine and fluoride levels, suggesting minimal absorption, lack of release of iodine and fluoride from the varnish, or inconsistent dosing. The average peak concentrations were 57 ± 33 ng/mL iodine and 60 ± 34 ng/mL (0.060 ± 0.034 ppm) fluoride and occurred within 3 h of application. The average elimination half-life was 5.5 ± 1.4 h and 3.1 ± 1.6 h for iodine and fluoride, respectively. Renal clearance of iodine and fluoride was similar to literature values. No adverse events related to the study varnish were observed by the investigative team or reported by the participants. In this study, serum fluoride and iodine transiently increased but were within normal range 24 h after application of the varnish. This study has shown that the combination of PVP-I and NaF in a proposed anticaries varnish was well tolerated. Knowledge Transfer Statement: This clinical study demonstrated that a dental varnish combining 10% (w/v) povidone iodine and 5% (w/v) sodium fluoride is well tolerated. Serum fluoride and iodine transiently increased but were within normal range after 24 h. Further studies should be conducted to assess the efficacy of a combination in preventing dental caries, especially in high-risk populations.
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Affiliation(s)
- Y S Lin
- 1 Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - M L Rothen
- 2 Department of Oral Health Sciences, University of Washington, Seattle, WA, USA
| | - P Milgrom
- 2 Department of Oral Health Sciences, University of Washington, Seattle, WA, USA
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Ibrahim AFM, Banihashemi F, Lin YS. Graphene oxide membranes with narrow inter-sheet galleries for enhanced hydrogen separation. Chem Commun (Camb) 2019; 55:3077-3080. [PMID: 30785425 DOI: 10.1039/c8cc10283j] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports synthesis of graphene oxide (GO) membranes with narrow interlayer free spacing on scalable polyester substrates using GO sheets prepared by Brodie's method. The GO membranes show interlayer free spacing of ∼3.2 Å with significantly improved hydrogen perm-selectivity than the GO membranes with the large inter-sheet spacing reported in literature.
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Affiliation(s)
- Amr F M Ibrahim
- Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt
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Abstract
Radioiodine-131((131)I) therapy as one of the post-surgical targeted therapies has been proven as an effective treatment modality in reducing the risk of recurrence and mortality in intermediate and high risk differentiated thyroid cancer (DTC). With increasing evidence over recent years, improvements in the management of DTC have been observed. In this review, several points and their influences on DTC decision making are discussed, including the purpose of (131)I therapy, evaluating system for risks and on-going response to therapy, as well as the significance of molecular features such as thyroglobulin, molecular pathology and nuclear medicine molecular imaging.
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Affiliation(s)
- Y S Lin
- Department of Nuclear Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Peking Union Medical College Hospital, Beijing 100730, China
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Wu VC, Chen SW, Wu M, Liu CH, Chang CW, Chen CC, Wu KP, Chang SH, Lin MS, Lee TH, Hsieh IC, Chu PH, Lin YS. P5138Resuming anticoagulation in patients with atrial fibrillation experiencing hemorrhage stroke or nontraumatic intracranial hemorrhage. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- V C Wu
- Chang Gung Memorial Hospital, Division of Cardiology, Taoyuan City, Taiwan ROC
| | - S W Chen
- Chang Gung Memorial Hospital, Department of Cardiothoracic and Vascular Surgery, Taoyuan City, Taiwan ROC
| | - M Wu
- Brown University, Division of Cardiovascular Medicine, Providence, United States of America
| | - C H Liu
- Chang Gung Memorial Hospital, Department of Neurology, Taoyuan City, Taiwan ROC
| | - C W Chang
- Chang Gung Memorial Hospital, Department of Neurology, Taoyuan City, Taiwan ROC
| | - C C Chen
- Chang Gung Memorial Hospital, Department of Neurosurgery, Taoyuan City, Taiwan ROC
| | - K P Wu
- Chang Gung Memorial Hospital, Department of Physical Medicine and Rehabilitation, Taoyuan City, Taiwan ROC
| | - S H Chang
- Chang Gung Memorial Hospital, Division of Cardiology, Taoyuan City, Taiwan ROC
| | - M S Lin
- Chang Gung Memorial Hospital, Department of Cardiology, Chiayi, Taiwan ROC
| | - T H Lee
- Chang Gung Memorial Hospital, Department of Neurology, Taoyuan City, Taiwan ROC
| | - I C Hsieh
- Chang Gung Memorial Hospital, Division of Cardiology, Taoyuan City, Taiwan ROC
| | - P H Chu
- Chang Gung Memorial Hospital, Division of Cardiology, Taoyuan City, Taiwan ROC
| | - Y S Lin
- Chang Gung Memorial Hospital, Department of Cardiology, Chiayi, Taiwan ROC
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Wu VC, Chen SW, Ting PC, Chang CH, Lin MS, Hsieh MJ, Wang CY, Chang SH, Chu PH, Lin YS. P5585Selection of beta-blocker in patients with cirrhosis and acute myocardial infarction: a 13-year nationwide population-based study in Asia. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- V C Wu
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - S W Chen
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - P C Ting
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - C H Chang
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - M S Lin
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - M J Hsieh
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - C Y Wang
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - S H Chang
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - P H Chu
- Chang Gung Memorial Hospital Tapei, Department of Cardiology, Taipei, Taiwan ROC
| | - Y S Lin
- Chang Gung Memorial Hospital, Department of Cardiology, Chiayi, Taiwan ROC
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Weibel J, Lin YS, Landolt HP, Garbazza C, Meyer M, Slawik H, Borgwardt S, Reichert C, Cajochen C. 0180 Influence of Long-Term Caffeine Consumption and Its Withdrawal on Subjective Sleepiness, Vigilance, and Melatonin. Sleep 2018. [DOI: 10.1093/sleep/zsy061.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Weibel
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
| | - Y S Lin
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
- Neuropsychiatry and Brain Imaging, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
| | - H P Landolt
- Institute of Pharmacology and Toxicology, University of Zürich, Zürich, SWITZERL
- Zürich Center for Interdisciplinary Sleep Research, University of Zürich, Zürich, SWITZERL
| | - C Garbazza
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
| | - M Meyer
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
- Clinical Sleep Laboratory, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
| | - H Slawik
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
- Clinical Sleep Laboratory, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
| | - S Borgwardt
- Neuropsychiatry and Brain Imaging, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
| | - C Reichert
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
| | - C Cajochen
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, SWITZERL
- Transfaculty Research Platform Molecular and Cognitive Neurosciences, University of Basel, Basel, SWITZERL
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Lin YS, Chang TH, Chen MC. 214Inhibition of LXR/RXR pathway through septal pacing: novel mechanism of myopathy induced by pacing. Europace 2018. [DOI: 10.1093/europace/euy015.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y S Lin
- Chang Gung Memorial Hospital Kaohsiung, Divisions of Cardiology, Kaohsiung, Taiwan ROC
| | - T H Chang
- Taipei Medical University Hospital, Taipei, Taiwan ROC
| | - M C Chen
- Chang Gung Memorial Hospital Kaohsiung, Divisions of Cardiology, Kaohsiung, Taiwan ROC
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Li YL, Lin YS, Huang PL, Do YY. Two Paralogous Genes Encoding Auxin Efflux Carrier Differentially Expressed in Bitter Gourd (Momordica charantia). Int J Mol Sci 2017; 18:ijms18112343. [PMID: 29113110 PMCID: PMC5713312 DOI: 10.3390/ijms18112343] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 11/01/2017] [Accepted: 11/04/2017] [Indexed: 11/16/2022] Open
Abstract
The phytohormone auxin regulates various developmental programs in plants, including cell growth, cell division and cell differentiation. The auxin efflux carriers are essential for the auxin transport. To show an involvement of auxin transporters in the coordination of fruit development in bitter gourd, a juicy fruit, we isolated novel cDNAs (referred as McPIN) encoding putative auxin efflux carriers, including McPIN1, McPIN2 (allele of McPIN1) and McPIN3, from developing fruits of bitter gourd. Both McPIN1 and McPIN3 genes possess six exons and five introns. Hydropathy analysis revealed that both polypeptides have two hydrophobic regions with five transmembrane segments and a predominantly hydrophilic core. Phylogenetic analyses revealed that McPIN1 shared the highest homology to the group of Arabidopsis, cucumber and tomato PIN1, while McPIN3 belonged to another group, including Arabidopsis and tomato PIN3 as well as PIN4. This suggests different roles for McPIN1 and McPIN3 in auxin transport involved in the fruit development of bitter gourd. Maximum mRNA levels for both genes were detected in staminate and pistillate flowers. McPIN1 is expressed in a particular period of early fruit development but McPIN3 continues to be expressed until the last stage of fruit ripening. Moreover, these two genes are auxin-inducible and qualified as early auxin-response genes. Their expression patterns suggest that these two auxin transporter genes play a pivotal role in fruit setting and development.
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Affiliation(s)
- Yi-Li Li
- Department of Horticulture & Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan.
| | - Yun-Shan Lin
- Department of Horticulture & Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan.
| | - Pung-Ling Huang
- Department of Horticulture & Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan.
- Graduate Institute of Biotechnology, Chinese Culture University, Taipei 11114, Taiwan.
| | - Yi-Yin Do
- Department of Horticulture & Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan.
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Li XY, Zhang B, Lin YS. [The interpretation of 2015 American Thyroid Association management guidelines for adult patients with thyroid nodules and differentiated thyroid cancer]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:309-315. [PMID: 28441815 DOI: 10.3760/cma.j.issn.1673-0860.2017.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The prevalence of thyroid nodules, especially differentiated thyroid cancer, has increased during the past decades. With the consideration of increasing prevalence of the diseases, American Thyroid Association (ATA) updated the guidelines for adult patients with thyroid nodules and differentiated thyroid carcinoma (DTC) in 2015. The aim of the new guidelines was to minimize potential harm from overtreatment in majority of patients at low risk for diseasespecific mortality and morbidity while appropriately treat and monitor those patients at higher risk. The updates of contents in new ATA guidelines are interpreted in this article, including the contents about screening, diagnosis and treatment plan of nodules, initial surgical treatment of DTC, the evaluation and treatment of DTC after surgery, follow-up and diagnosis and treatment of recurrence, persistence, and distant metastasis of DTC.
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Affiliation(s)
- X Y Li
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy Of Medical Sciences, Beijing 100730, China
| | - B Zhang
- Department of Ultrasound, Peking Union Medical College Hospital, Chinese Academy Of Medical Sciences, Beijing 100730, China
| | - Y S Lin
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy Of Medical Sciences, Beijing 100730, China
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Wang YT, Huang CC, Lin YS, Huang WF, Yang CY, Lee CC, Yeh CM, Hsu KS. Conditional deletion of Eps8 reduces hippocampal synaptic plasticity and impairs cognitive function. Neuropharmacology 2016; 112:113-123. [PMID: 27450093 DOI: 10.1016/j.neuropharm.2016.07.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/28/2016] [Accepted: 07/18/2016] [Indexed: 10/21/2022]
Abstract
Epidermal growth factor receptor substrate 8 (Eps8) is a multifunctional protein involved in actin cytoskeleton regulation and is abundantly expressed in many brain regions. However, the functional significance of Eps8 in the brain has only just begun to be elucidated. Here, we demonstrate that genetic deletion of Eps8 (Eps8-/-) from excitatory neurons leads to impaired performance in a novel object recognition test. Consistently, Eps8-/- mice displayed a deficit in the maintenance of long-term potentiation in the CA1 region of hippocampal slices, which was rescued by bath application of N-methyl-d-aspartate receptor (NMDAR) antagonist 2-amino-5-phosphonopentanoate. While Eps8-/- mice showed normal basal synaptic transmission, a significant increase in the amplitude and a significantly slower decay kinetic of NMDAR-mediated excitatory postsynaptic currents (EPSCs) were observed in hippocampal CA1 neurons. Furthermore, a significant increase in the expression of ifenprodil-sensitive NMDAR-mediated EPSCs was observed in neurons from Eps8-/- mice compared with those from wild-type mice. Eps8 deletion led to decreased mature mushroom-shaped dendritic spine density but increased complexity of basal dendritic trees of hippocampal CA1 pyramidal neurons. These results implicate NMDAR hyperfunction in the cognitive deficits observed in Eps8-/- mice and demonstrate a novel role for Eps8 in regulating hippocampal long-term synaptic plasticity and cognitive function. This article is part of the Special Issue entitled 'Ionotropic glutamate receptors'.
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Affiliation(s)
- Yu-Ting Wang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Chiung-Chun Huang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Yun-Shan Lin
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Weu-Fang Huang
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Cheng-Yi Yang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Cheng-Che Lee
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Che-Ming Yeh
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Kuei-Sen Hsu
- Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
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18
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Brown JT, Abdel-Rahman SM, van Haandel L, Gaedigk A, Lin YS, Leeder JS. Single dose, CYP2D6 genotype-stratified pharmacokinetic study of atomoxetine in children with ADHD. Clin Pharmacol Ther 2016; 99:642-50. [PMID: 26660002 DOI: 10.1002/cpt.319] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 11/30/2015] [Accepted: 12/02/2015] [Indexed: 01/22/2023]
Abstract
The effect of CYP2D6 genotype on the dose-exposure relationship for atomoxetine has not been well characterized in children. Children 6-17 years of age diagnosed with attention-deficit hyperactivity disorder (ADHD) were stratified by CYP2D6 genotype into groups with 0 (poor metabolizers [PMs], n = 4), 0.5 (intermediate metabolizers [IMs], n = 3), one (extensive metabolizer [EM]1, n = 8) or two (EM2, n = 8) functional alleles and administered a single 0.5 mg/kg oral dose of atomoxetine (ATX). Plasma and urine samples were collected for 24 (IM, EM1, and EM2) or 72 hours (PMs). Dose-corrected ATX systemic exposure (area under the curve [AUC]0-∞ ) varied 29.6-fold across the study cohort, ranging from 4.4 ± 2.7 μM*h in EM2s to 5.8 ± 1.7 μM*h, 16.3 ± 2.9 μM*h, and 50.2 ± 7.3 μM*h in EM1s, IMs, and PMs, respectively (P < 0.0001). Simulated steady state profiles at the maximum US Food and Drug Administration (FDA)-recommended dose suggest that most patients are unlikely to attain adequate ATX exposures. These data support the need for individualized dosing strategies for more effective use of the medication.
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Affiliation(s)
- J T Brown
- Department of Pharmacy Practice and Pharmaceutical Sciences, University of Minnesota College of Pharmacy, Duluth, Minnesota, USA
| | - S M Abdel-Rahman
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Department of Pediatrics, Children's Mercy Kansas City and University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - L van Haandel
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Department of Pediatrics, Children's Mercy Kansas City and University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - A Gaedigk
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Department of Pediatrics, Children's Mercy Kansas City and University of Missouri-Kansas City, Kansas City, Missouri, USA
| | - Y S Lin
- Department of Pharmaceutics, University of Washington School of Pharmacy, Seattle, Washington, USA
| | - J S Leeder
- Division of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Department of Pediatrics, Children's Mercy Kansas City and University of Missouri-Kansas City, Kansas City, Missouri, USA
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19
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Lin YS, Kuan CS, Weng IS, Tsai CC. Cultivar identification and genetic relationship of pineapple (Ananas comosus) cultivars using SSR markers. Genet Mol Res 2015; 14:15035-43. [PMID: 26634465 DOI: 10.4238/2015.november.24.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The genetic relationships among 27 pineapple [Ananas comosus (L.) Merr.] cultivars and lines were examined using 16 simple sequence repeat (SSR) markers. The number of alleles per locus of the SSR markers ranged from 2 to 6 (average 3.19), for a total of 51 alleles. Similarity coefficients were calculated on the basis of 51 amplified bands. A dendrogram was created according to the 16 SSR markers by the unweighted pair-group method. The banding patterns obtained from the SSR primers allowed most of the cultivars and lines to be distinguished, with the exception of vegetative clones. According to the dendrogram, the 27 pineapple cultivars and lines were clustered into three main clusters and four individual clusters. As expected, the dendrogram showed that derived cultivars and lines are closely related to their parental cultivars; the genetic relationships between pineapple cultivars agree with the genealogy of their breeding history. In addition, the analysis showed that there is no obvious correlation between SSR markers and morphological characters. In conclusion, SSR analysis is an efficient method for pineapple cultivar identification and can offer valuable informative characters to identify pineapple cultivars in Taiwan.
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Affiliation(s)
- Y S Lin
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C S Kuan
- Department of Horticulture, Chiayi Agricultural Experimental Station, Taiwan Agricultural Research Institute, Chiayi, Taiwan
| | - I S Weng
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C C Tsai
- Crops Improvement Division, Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
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20
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Lai JM, Tsai CC, Yen CR, Ko YZ, Chen SR, Weng IS, Lin YS, Chiang YC. Molecular characterization of twenty polymorphic microsatellite markers in the polyploid fruit tree species Syzygium samarangense (Myrtaceae). Genet Mol Res 2015; 14:13013-21. [PMID: 26505454 DOI: 10.4238/2015.october.21.22] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Syzygium samarangense (Blume) Merr. & Perry (wax apple) is an important commercial fruit tree in Southeast Asia. Here, microsatellite markers were developed to evaluate genetic diversity and distinguish cultivars in this species. In total, 161 microsatellite loci with sufficient flanking sequences to design primer sets were isolated from wax apple using a magnetic bead-enrichment method. Fifty-eight primer sets were designed based on the flanking sequences of each single sequence repeat (SSR) locus and were tested using 14 wax apple cultivars/lines. Twenty SSR loci were found to be polymorphic and transferable across the 14 wax apple cultivars/lines. The number of alleles and effective number of alleles detected per locus ranged from 4 to 12 and from 1.697 to 9.800, respectively. The expected heterozygosity ranged from 0.150 to 0.595 (mean = 0.414). Polymorphism information content values ranged from 0.502 to 0.866 (mean = 0.763). These new microsatellite loci will be of value for characterization of genetic diversity in wax apples and for the identification of cultivars.
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Affiliation(s)
- J M Lai
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C C Tsai
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - C R Yen
- National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Y Z Ko
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - S R Chen
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - I S Weng
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - Y S Lin
- Kaohsiung District Agricultural Research and Extension Station, Pingtung, Taiwan
| | - Y C Chiang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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21
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Abstract
Obesity is the major risk factor for early puberty, but emerging evidence indicates other factors including psychosocial stress. One key brain region notable for its role in controlling calorie intake, stress, and behavior is the amygdala. Early studies involving amygdala lesions that included the medial nucleus advanced puberty in rats. More recently it was shown that a critical site for lesion-induced hyperphagia and obesity is the posterodorsal subnucleus of the medial amygdala (MePD), which may explain the advancement of puberty. Glutamatergic activity also increases in the MePD during puberty without a corresponding γ-aminobutyric acid (GABA)ergic change, suggesting an overall activation of this brain region. In the present study, we report that neurotoxic lesioning of the MePD advances puberty and increases weight gain in female rats fed a normal diet. However, MePD lesioned rats fed a 25% nonnutritive bulk diet also showed the dramatic advancement of puberty but without the increase in body weight. In both dietary groups, MePD lesions resulted in an increase in socialization and a decrease in play fighting behavior. Chronic GABAA receptor antagonism in the MePD from postnatal day 21 for 14 days also advanced puberty, increased socialization, and decreased play fighting without altering body weight, whereas glutamate receptor antagonism delayed puberty and decreased socialization without affecting play fighting. In conclusion, our results suggest the MePD regulates the timing of puberty via a novel mechanism independent of change in body weight and caloric intake. MePD glutamatergic systems advance the timing of puberty whereas local GABAergic activation results in a delay.
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Affiliation(s)
- X F Li
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - M H Hu
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - B P Hanley
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - Y S Lin
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - L Poston
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - S L Lightman
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
| | - K T O'Byrne
- Division of Women's Health (X.F.L., M.H.L., B.P.H., Y.S.L., L.P., K.T.O.), Faculty of Life Sciences and Medicine, King's College London, Guy's Campus, London SE1 1UL, United Kingdom; and Henry Wellcome Laboratory for Integrative Neuroscience and Endocrinology (S.L.L.), University of Bristol, Bristol BS1 3NY, United Kingdom
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Lin YS, Yang CC, Hsu CC, Hsu JT, Wu SC, Lin CJ, Cheng WTK. Establishment of a novel, eco-friendly transgenic pig model using porcine pancreatic amylase promoter-driven fungal cellulase transgenes. Transgenic Res 2014; 24:61-71. [PMID: 25063310 DOI: 10.1007/s11248-014-9817-9] [Citation(s) in RCA: 6] [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] [Received: 02/16/2014] [Accepted: 07/11/2014] [Indexed: 11/25/2022]
Abstract
Competition between humans and livestock for cereal and legume grains makes it challenging to provide economical feeds to livestock animals. Recent increases in corn and soybean prices have had a significant impact on the cost of feed for pig producers. The utilization of byproducts and alternative ingredients in pig diets has the potential to reduce feed costs. Moreover, unlike ruminants, pigs have limited ability to utilize diets with high fiber content because they lack endogenous enzymes capable of breaking down nonstarch polysaccharides into simple sugars. Here, we investigated the feasibility of a transgenic strategy in which expression of the fungal cellulase transgene was driven by the porcine pancreatic amylase promoter in pigs. A 2,488 bp 5'-flanking region of the porcine pancreatic amylase gene was cloned by the genomic walking technique, and its structural features were characterized. Using GFP as a reporter, we found that this region contained promoter activity and had the potential to control heterologous gene expression. Transgenic pigs were generated by pronuclear microinjection. Founders and offspring were identified by PCR and Southern blot analyses. Cellulase mRNA and protein showed tissue-specific expression in the pancreas of F1 generation pigs. Cellulolytic enzyme activity was also identified in the pancreas of transgenic pigs. These results demonstrated the establishment of a tissue-specific promoter of the porcine pancreatic amylase gene. Transgenic pigs expressing exogenous cellulase may represent a way to increase the intake of low-cost, fiber-rich feeds.
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Affiliation(s)
- Y S Lin
- Department of Animal Science and Technology, National Taiwan University, Taipei, 106, Taiwan, ROC
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Yeang CH, Ma GC, Hsu HW, Lin YS, Chang SM, Cheng PJ, Chen CA, Ni YH, Chen M. Genome-wide normalized score: a novel algorithm to detect fetal trisomy 21 during non-invasive prenatal testing. Ultrasound Obstet Gynecol 2014; 44:25-30. [PMID: 24700679 DOI: 10.1002/uog.13377] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 03/19/2014] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVES Non-invasive prenatal testing for fetal trisomy 21 (T21) by massively parallel shotgun sequencing (MPSS) is available for clinical use but its efficacy is limited by several factors, e.g. the proportion of cell-free fetal DNA in maternal plasma and sequencing depth. Existing algorithms discard DNA reads from the chromosomes for which testing is not being performed (i.e. those other than chromosome 21) and are thus more susceptible to diluted fetal DNA and limited sequencing depth. We aimed to describe and evaluate a novel algorithm for aneuploidy detection (genome-wide normalized score (GWNS)), which normalizes read counts by the proportions of DNA fragments from chromosome 21 in normal controls. METHODS We assessed the GWNS approach by comparison with two existing algorithms, i.e. Z-score and normalized chromosome value (NCV), using theoretical approximations and computer simulations in a set of 86 cases (64 euploid and 22 T21 cases). We then validated GWNS by studying an expanded set of clinical samples (n = 208). Finally, dilution experiments were undertaken to compare performance of the three algorithms (Z-score, NCV, GWNS) when fetal DNA concentration was low. RESULTS At fixed levels of significance and power, GWNS required a smaller fetal DNA proportion and fewer total MPSS reads compared to Z-score or NCV. In dilution experiments, GWNS also outperformed the other two methods by reaching the correct diagnosis with the lowest range of fetal DNA concentrations (GWNS, 3.83-4.75%; Z-score, 4.75-5.22%; NCV, 6.47-8.58%). CONCLUSION Our results demonstrate that GWNS is comparable to Z-score and NCV methods regarding the performance of detecting fetal T21. Dilution experiments suggest that GWNS may perform better than the other methods when fetal fraction is low.
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Affiliation(s)
- C H Yeang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
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Huang HY, Kuo LY, Cheng FH, Chen JC, Hsu CL, Chen BY, Lin YS, Tsai HY, Wei J. Prognostic value of oxygen consumption and ventilatory equivalent slope in female candidates referred for heart transplantation--experience of a single Asian center. Transplant Proc 2014; 46:897-9. [PMID: 24767375 DOI: 10.1016/j.transproceed.2013.09.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ventilatory equivalent (ventilation/CO2 production, VE/VCO2) slope has been suggested to be a much more accurate predicator than peak oxygen consumption (VO2) during exercise for prognosis in patients with heart failure. However, patients tested were predominately male. METHODS To investigate whether peak VO2 and VE/VCO2 slope predict the prognosis of female patients with heart failure, we retrospectively collected data of 39 female candidates referred for heart transplantation (HTx) from 2004 to 2011. Both peak VO2 and VE/VCO2 slope were obtained from the results of an exercise pulmonary function test. The outcome was death or mechanical devices implantation or HTx. Logistic regression was used for data analysis. RESULTS Mean age and heart failure survival score were 55.8 ± 13.7 years and 7.3 ± 0.7, respectively. Each increment of VE/VCO2 slope decreased 2-year event-free rate (odds ratio [OR] = 0.88, 95% confidence interval [CI] = 0.79 to 0.98) in the female group. The predictions of VE/VCO2 slope for 1-year event-free survival did not reach statistical significance (OR = 0.92, 95% CI = 0.84 to 1.00). On the other hand, peak VO2 was not a strong predictor for 1- and 2-year event-free survival (OR = 1.22 and 1.16, 95% CI = 0.96 to 1.55 and 0.94 to 1.44, respectively). CONCLUSIONS Impairment in exercise ventilation holds a clinical and long-term prognostic impact in female patients with heart failure. The role of peak VO2 during exercise in prognostic prediction among the cohort should be further investigated.
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Affiliation(s)
- H Y Huang
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - L Y Kuo
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - F H Cheng
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - J C Chen
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - C L Hsu
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - B Y Chen
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - Y S Lin
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - H Y Tsai
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - J Wei
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan.
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Yu SS, Mei KD, Lin YS. Does airway integrated nasal packing after septal surgery improve body oxygenation? Rhinology 2013; 51:243-8. [PMID: 23943731 DOI: 10.4193/rhino12.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Airway integrated nasal packing reportedly improves body oxygenation after septal surgery. This randomized controlled study examined the effect of airway integrated nasal packing on oxygen saturation. METHODS Eighty patients with septal deviation and hypertrophic turbinate were randomly divided into two groups: Group 1 patients were postoperatively packed with airway integrated Nasopore, and Group 2 patients were postoperatively packed with Nasopore without airway integration. The haemodynamic parameters and SpO2 (oxyhemoglobin saturation levels when measured using pulse oximetry) were sequentially checked. Nasal pain sensations were recorded using a visual analog scale. RESULTS SpO2 was not significantly different between Groups 1 and 2. Nasal pain levels were significantly higher in Group 1 than in Group 2 at both 4 (p = 0.034) and 6 (p = 0.001) hours postoperatively. There were no significant differences between the two groups in the incidences of septal haematoma, perforation, or bleeding, or in sequentially checked heart rate, mean blood pressure, or respiration rate. CONCLUSION It was not evident that integrated airways improved the reduction of SpO2. However, Group 1 patients, with integrated airways, had more pain than did Group 2 patients, without integrated airways. EVIDENCE LEVEL 1b.
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Affiliation(s)
- S S Yu
- Department of Otolaryngology, Chi Mei Medical Center, Tainan, Taiwan
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Chu YY, Lin YS, Chang CM, Liu JK, Chen CH, Huang JC. Promising antimicrobial capability of thin film metallic glasses. Mater Sci Eng C Mater Biol Appl 2013; 36:221-5. [PMID: 24433907 DOI: 10.1016/j.msec.2013.12.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/10/2013] [Accepted: 12/06/2013] [Indexed: 11/28/2022]
Abstract
Thin film metallic glasses (TFMGs) are demonstrated to exhibit excellent surface flatness, high corrosion resistance and satisfactory hydrophobic properties. Moreover, the antimicrobial and biocompatibility abilities of TFMGs are examined and the results are compared with the behavior of pure Ag and 316L stainless steel. Three TFMGs, Al48Ag37Ti15, Zr54Ti35Si11, and Zr59Ti22Ag19, are prepared by sputtering to assess the antimicrobial performance against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa, which are the most common nosocomial infection pathogens. Experimental results show that the antimicrobial effect of the Al- or Ag-containing AlAgTi and ZrTiAg TFMGs is similar to that of the pure Ag coating. The ZrTiSi TFMG with no Ag or Al shows poor antimicrobial capability. The physical properties of highly smooth surface and hydrophobic nature alone are not sufficient to result in promising antimicrobial ability. The chemical metal ion release still plays a major role, which should be born in mind in designing biomedical devices.
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Affiliation(s)
- Y Y Chu
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, ROC
| | - Y S Lin
- Departments of Orthopedics and Orthopedic Research Center in College of Medicine, Taiwan, ROC; Department of Orthopedics in Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC
| | - C M Chang
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, ROC
| | - J-K Liu
- Department of Biological Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, ROC
| | - C H Chen
- Departments of Orthopedics and Orthopedic Research Center in College of Medicine, Taiwan, ROC; Department of Orthopedics in Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC
| | - J C Huang
- Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, ROC.
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Huang HC, Lin YS, Chen JM, Yeh CH, Chung KC. The impact of abnormal muscle tone from hemiplegia on reclining wheelchair positioning: a sliding and pressure evaluation. Eur J Phys Rehabil Med 2013; 49:619-628. [PMID: 24104696] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Little is known about the influence of existing muscle tone abnormality on the sitting posture of stroke patients in reclining wheelchairs. AIM To investigate the impact of muscle tone abnormality from hemiplegia on the forward sliding and pressure of stroke patients while sitting in reclining wheelchairs. DESIGN Experimental study. SETTING The Assistive Devices/Technology Center at the Rehabilitation Department of hospital. POPULATION 14 able-bodied elders and nonambulatory elderly stroke patients with flaccid (N.=12) or spastic hemiplegia (N.=13) participated in this study. Of the 12 patients with flaccid hemiplegia, 8 suffered from left-sided hemiplegia and 4 from right-sided hemiplegia. Of the 13 patients with spastic hemiplegia, 6 suffered from left-sided hemiplegia and 7 from right-sided hemiplegia. METHODS We performed 3 reclining cycles in wheelchairs with conventional seats and V-shaped seats for each participant. The sliding along the backrest (BS) plane and the seat (SS) plane, mean sitting pressure (MP), and sacral peak pressure (SPP) of the participants were recorded. The Kruskal-Wallis test was used to compare the difference in BS, SS, MP, and SPP between able-bodied elders and stroke patients. RESULTS The BS, SS, and SPP during repetitive reclining were generally greatest in flaccid hemiplegic participants, followed by spastic hemiplegic participants, and finally by able-bodied participants. There was no significant difference in MP among three subject groups on both conventional seats and V-shaped seats in most comparisons. Able-bodied participants' buttocks tended to slide forward on conventional seats but backward on V-shaped seats, whereas hemiplegic participants' buttocks slid forward on both seat types. CONCLUSION Stroke patients with flaccid hemiplegia are the most vulnerable to sacral sitting and higher sacral pressure in reclining wheelchairs, followed by patients with spastic hemiplegia. There is a difference in the displacement pattern between participants with normal muscle tone and those with abnormal muscle tone during wheelchair positioning. People who have hemiplegia with spasticity do not have incremental forward sliding with repetitive reclining in the same way as those who have a flaccid hemiplegia. CLINICAL REHABILITATION IMPACT The findings are valuable for wheelchair prescription and caregiver education.
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Affiliation(s)
- H C Huang
- Department of Physical Medicine and Rehabilitation Chia-Yi Christian Hospital, Chia-Yi, Taiwan -
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Wun WC, Huang TC, Lin SJ, Lin BB, Morita T, Lin YS. A Convenient Synthesis of 2-Diazo-1,3-Dicyano-6-Oxo-2,6-Dihydroazulene and its Photochemical Reactions. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199300095] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Huang TC, Morita T, Lin BB, Lin YS. Synthesis and Diazotization of Diethyl 6-Amino-2-Hydroxyazulene-1,3-Dicarboxylate and Its 2-Acetoxyl Derivative. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199400029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Huang TC, Lin YS, Lin SJ, Chu SF. Diazotization of Methyl 3-Amino-7-Isopropyl-2-Methoxyazulene-1-Carboxylate and its 5-Isopropyl Isomer- a Convenient Synthesis of 1,2-Azulenequinone Derivatives. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199600007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Liu HL, Chang TT, Yan FX, Lin YS, Wong AM. SU-E-CAMPUS-I-02: Quantification of Vessel Permeability Using Dynamic Contrast Enhanced and Arterial Spin Labeling MRI in Brain Tumors. Med Phys 2013. [DOI: 10.1118/1.4815168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Liu CY, Liao YP, Lin YS, Chin SC, Liu HL. SU-E-I-18: Uncertainty Analysis of Pharmacokinetic Modeling in Dynamic Contrast-Enhanced MRI Evaluated with MMID4 Simulation. Med Phys 2013. [DOI: 10.1118/1.4814128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Abstract
For the first time, an organophilic ZIF-71 membrane was prepared and used for pervaporation separation of liquid alcohol-water and dimethyl carbonate-methanol mixtures. The ZIF-71 membrane exhibits good performance in separation of methanol-water and dimethyl carbonate-methanol mixtures.
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Affiliation(s)
- Xueliang Dong
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ 85287, USA
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Lin YS, Li XF, Shao B, Hu MH, Goundry ALR, Jeyaram A, Lightman SL, O'Byrne KT. The role of GABAergic signalling in stress-induced suppression of gonadotrophin-releasing hormone pulse generator frequency in female rats. J Neuroendocrinol 2012; 24:477-88. [PMID: 22172044 DOI: 10.1111/j.1365-2826.2011.02270.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Stress exerts profound inhibitory effects on reproductive function by suppressing the pulsatile release of gonadotrophin-releasing hormone (GnRH) and therefore luteinising hormone (LH). This effect is mediated in part via the corticotrophin-releasing factor (CRF) system, although another potential mechanism is via GABAergic signalling within the medial preoptic area (mPOA) because this has known inhibitory influences on the GnRH pulse generator and shows increased activity during stress. In the present study, we investigated the role of the preoptic endogenous GABAergic system in stress-induced suppression of the GnRH pulse generator. Ovariectomised oestradiol-replaced rats were implanted with bilateral and unilateral cannulae targeting toward the mPOA and lateral cerebral ventricle, respectively; blood samples (25 μl) were taken via chronically implanted cardiac catheters every 5 min for 6 h for the measurement of LH pulses. Intra-mPOA administration of the specific GABA(A) receptor antagonist, bicuculline (0.2 pmol each side, three times at 20-min intervals) markedly attenuated the inhibitory effect of lipopolysaccharide (LPS; 25 μg/kg i.v.) but not restraint (1 h) stress on pulsatile LH secretion. By contrast, restraint but not LPS stress-induced suppression of LH pulse frequency was reversed by application of the selective GABA(B) receptor antagonist, CGP-35348, into the mPOA (1.5 nmol each side, three times at 20-min intervals). However, intra-mPOA application of either bicuculline or CGP-35348 attenuated the inhibitory effect of CRF (1 nmol i.c.v.) on the pulsatile LH secretion. These data indicate a pivotal and differential role of endogenous GABAergic signalling in the mPOA with respect to mediating psychological and immunological stress-induced suppression of the GnRH pulse generator.
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Affiliation(s)
- Y S Lin
- Division of Women's Health, School of Medicine, King's College London, Guy's Campus, London, UK
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Chen CC, Lin YS, Sang CH, Sheu JT. Localized joule heating as a mask-free technique for the local synthesis of ZnO nanowires on silicon nanodevices. Nano Lett 2011; 11:4736-4741. [PMID: 22007768 DOI: 10.1021/nl202539m] [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: 05/31/2023]
Abstract
We report a mask-free technique for the local synthesis of ZnO nanowires (NWs) on polysilicon nanobelts and polysilicon NW devices. First, we used localized joule heating to generate a poly(methyl methacrylate) (PMMA) nanotemplate, allowing the rapid and self-aligned ablation of PMMA within a short period of time (ca. 5 μs). Next, we used ion-beam sputtering to prepare an ultrathin Au film and a ZnO seed layer; a subsequent lift-off process left the seed layers selectively within the PMMA nanotemplate. Gold nanoparticles and ZnO NWs were formed selectively in the localized joule heating region.
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Affiliation(s)
- C C Chen
- Institute of Nanotechnology/Materials Science and Engineering, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu 30050, Taiwan
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Li XF, Lin YS, Kinsey-Jones JS, Milligan SR, Lightman SL, O'Byrne KT. The role of the bed nucleus of the stria terminalis in stress-induced inhibition of pulsatile luteinising hormone secretion in the female rat. J Neuroendocrinol 2011; 23:3-11. [PMID: 21073554 DOI: 10.1111/j.1365-2826.2010.02071.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The bed nucleus of the stria terminalis (BNST) occupies a central position in the neural circuitry regulating the hypothalamic-pituitary-adrenocortical axis response to stress. The potential role of the BNST in stress-induced suppression of the gondotrophin-releasing hormone (GnRH) pulse generator, the central regulator of the reproductive system, was assessed by examining the effects of micro-infusion of corticotrophin-releasing factor (CRF) or its antagonist into the BNST on pulsatile luteinising hormone (LH) secretion or stress-induced inhibition of LH pulses, respectively. Ovariectomised oestrogen-treated rats were implanted chronically with bilateral cannulae in the dorsolateral BNST and i.v. catheters. CRF (25, 50 or 100 pmol in 200 nl of artificial cerebrospinal fluid) administered bilaterally into the BNST resulted in a dose-dependent decrease in LH pulse frequency, and induced Fos expression in glutamic acid decarboxylase immunostained neurones in the medial preoptic area. These results suggest that the activation of hypothalamic GABAergic neurones in response to intra-BNST administration of CRF may be involved in the suppression of LH pulses. Furthermore, administration of CRF antagonist (280 pmol astressin-B, three times at 20-min intervals) into the BNST effectively blocked the suppression of pulsatile LH secretion in response to restraint (1 h) but not hypoglycaemic (0.25 U insulin/kg, i.v.) stress. These data suggest that CRF innervation of the dorsolateral BNST plays a key, but differential, role in stress-induced suppression of the GnRH pulse generator.
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Affiliation(s)
- X F Li
- Division of Reproduction & Endocrinology, King's College London, London, UK
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Lin BB, Lin YS. One-pot synthesis and evaluation for 15-lipoxygenase inhibition of 1-ethoxy-4-cyano-5-ethoxycarbonyl-3H-azuleno[1,2-c]pyran- 3-imine. J Heterocycl Chem 2010. [DOI: 10.1002/jhet.491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chu P, Tang CH, Wu CS, Lin YS. PREECLAMPSIA-ECLAMPSIA AND THE RISK OF MAJOR CARDIOVASCULAR EVENTS AMONG PERIPARTUM: PP.22.414. J Hypertens 2010. [DOI: 10.1097/01.hjh.0000379340.33074.ef] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Puberty is a developmental process that is dependent upon activation of the hypothalamic gonadotrophin-releasing hormone (GnRH) pulse generator. It is well established that the stress neuropeptide, corticotrophin-releasing factor (CRF), has a profound inhibitory action on GnRH pulse generator frequency. Although stress is known to affect the timing of puberty, the role of CRF is unknown. The present study aimed to test the hypothesis that CRF plays a critical role in the timing of puberty. On postnatal day (pnd) 28, female rat pups were chronically implanted with i.c.v. cannulae and received 14 days of administration of either CRF, CRF receptor antagonist (astressin-B) or artificial cerebrospinal fluid via an osmotic mini-pump. A separate group of rats served as nonsurgical controls. As a marker of puberty, rats were monitored for vaginal opening and first vaginal oestrus. Levels of CRF, CRF receptor types 1 and 2 (CRF-R1, CRF-R2) mRNA expression in micropunches of the medial preoptic area (mPOA), hypothalamic paraventricular nucleus (PVN) and arcuate nucleus (ARC) were determined across pubertal development; brain tissue was collected from a naive group of rats on pnd 14, 32, on the day of vaginal opening, and pnd 77 (Adult). Administration of CRF resulted in a delay in the onset of puberty, whereas astressin-B advanced pubertal onset. Additionally, CRF and CRF-R1 mRNA expression was reduced in the mPOA, but not ARC, at puberty. In the PVN, expression of CRF, but not CRF-R1 mRNA, was reduced at the time of puberty. These data support the hypothesis that CRF signalling may play an important role in modulating the timing of puberty in the rat.
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Affiliation(s)
- J S Kinsey-Jones
- Division of Reproduction & Endocrinology, King's College London, Guy's Campus, London, UK
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Chang LC, Guo CL, Lin YS, Fu H, Wang CS, Jauh GY. Pollen-Specific SKP1-Like Proteins are Components of Functional SCF Complexes and Essential for Lily Pollen Tube Elongation. ACTA ACUST UNITED AC 2009; 50:1558-72. [DOI: 10.1093/pcp/pcp100] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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McConn DJ, Lin YS, Mathisen TL, Blough DK, Xu Y, Hashizume T, Taylor SL, Thummel KE, Shuhart MC. Reduced duodenal cytochrome P450 3A protein expression and catalytic activity in patients with cirrhosis. Clin Pharmacol Ther 2009; 85:387-93. [PMID: 19212316 DOI: 10.1038/clpt.2008.292] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The small intestine and liver express high levels of cytochrome P450 3A (CYP3A), an enzyme subfamily that contributes significantly to drug metabolism. In patients with cirrhosis, reduced metabolism of drugs is typically attributed to decreased liver function, but it is unclear whether drug metabolism in the intestine is also compromised. In this study, we compared CYP3A protein expression and in vitro midazolam hydroxylation in duodenal mucosal biopsies from subjects with normal liver function (controls; n = 20) and subjects with various levels of severity of cirrhosis (n = 23). In samples from subjects with cirrhosis, duodenal CYP3A expression and total midazolam hydroxylation were lower by 47 and 34%, respectively, as compared with samples from controls. Greater decreases in CYP3A expression were seen in subjects with more severe cirrhosis. Therefore, patients with advanced cirrhosis may have greater drug exposure following oral dosing as a result of both impaired liver function and decreased intestinal CYP3A expression and activity.
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Affiliation(s)
- D J McConn
- Department of Pharmaceutics, University of Washington, Seattle, Washington, USA
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Abstract
Photonic crystals of Tb(OH)(3)/SiO(2) core/shell nanospheres with different periodicities were used as a resonant cavity to explore laser action. By changing the particle size, the optical stop band of the photonic crystals can be tuned to coincide with the multiple emission bands of terbium ions. An overlap of the stop band on the multiple emissions of the active materials embedded inside the photonic crystals offered a good chance for resonance. Lasing emissions arising from terbium ions occurred near the band edge of the PCs were demonstrated.
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Affiliation(s)
- H Y Lin
- Department of Physics, National Taiwan University, Taipei 106, Taiwan
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Abstract
A putative haematotoxic and leukaemogenic metabolite of benzene, 1,4-benzoquinone (1,4-BQ), reacts rapidly with macromolecules. The authors previously characterized levels of the albumin (Alb) adduct (1,4-BQ-Alb) of this reactive species in populations of workers exposed to benzene. Since high levels of 1,4-BQ-Alb were also measured in unexposed workers from those investigations, the current study was initiated to determine potential sources of 1,4-BQ in the general population. A single blood sample was collected from 191 healthy subjects from the Research Triangle area, NC, USA, to determine the baseline 1,4-BQ-Alb levels and contributing sources. The median 1,4-BQ-Alb at baseline was 550?pmol?g(-1) Alb (interquartile range 435-814?pmol?g(-1)). A second blood sample was collected approximately 3 months later from a subgroup of 33 subjects to estimate the within- and between-person variation in 1,4-BQ-Alb. Standardized questionnaires were administered to collect information about demographic, dietary and lifestyle factors. Multiple linear regression models identified several significant contributors to 1,4-BQ-Alb levels, including gender, body mass index (BMI), the gender-BMI interaction, automobile refuelling, smoking status, and consumption of fruit and the artificial sweetener, aspartame. The authors predicted that these background levels of 1,4-BQ-Alb were equivalent to occupational exposures between 1 and 3 parts per million of benzene. Mixed effects linear models indicated that the random variation in adduct levels was about equally divided between and within subjects. The observations indicate that levels of 1,4-BQ-Alb cover a wide range in the general population, and they support the hypotheses that demographic, diet and lifestyle factors are contributing sources.
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Affiliation(s)
- Y S Lin
- Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, NC 27599, USA
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Lin YS, Egeghy PP, Rappaport SM. Relationships between levels of volatile organic compounds in air and blood from the general population. J Expo Sci Environ Epidemiol 2008; 18:421-9. [PMID: 18059425 DOI: 10.1038/sj.jes.7500635] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The relationships between levels of volatile organic compounds (VOCs) in blood and air have not been well characterized in the general population where exposure concentrations are generally at parts per billion levels. This study investigates relationships between the levels of nine VOCs, namely, benzene, chloroform, 1,4-dichlorobenzene, ethylbenzene, methyl tert-butyl ether (MTBE), tetrachloroethene, toluene, and m-/p- and o-xylene, in blood and air from a stratified random sample of the general US population. We used data collected from 354 participants, including 89 smokers and 265 nonsmokers, aged 20-59 years, who provided samples of blood and air in the National Health and Nutrition Examination Survey (NHANES) 1999-2000. Demographic and physiological characteristics were obtained from self-reported information; smoking status was determined from levels of serum cotinine. Multiple linear regression models were used to investigate the relationships between VOC levels in air and blood, while adjusting for effects of smoking and demographic factors. Although levels of VOCs in blood were positively correlated with the corresponding air levels, the strength of association (R(2)) varied from 0.02 (ethylbenzene) to 0.68 (1,4-DCB). Also the blood-air relationships of benzene, toluene, ethylbenzene, and the xylenes (BTEX) were influenced by smoking, exposure-smoking interactions, and by gender, age, and BMI, whereas those of the other VOCs were not. Interestingly, the particular exposure-smoking interaction for benzene was different from those for toluene, ethylbenzene, and the xylenes. Whereas smokers retained more benzene in their blood at increasing exposure levels, they retained less toluene, ethylbenzene, and xylenes at increasing exposure levels. Investigators should consider interaction effects of exposure levels and smoking when exploring the blood-air relationships of the BTEX compounds in the general population.
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Affiliation(s)
- Y S Lin
- Department of Environmental and Occupational Health, School of Public Health, University of North Texas Health Science Center, Fort Worth, Texas, USA
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Lee JK, Liu WS, Lin YS, Liu JT, Chang LP, Huang WS, Chou MC. Thallium-201 SPECT predicts response to intensity-modulated radiation therapy for recurrent oral squamous cell carcinoma. Nuklearmedizin 2007; 46:169-74. [PMID: 17938749 DOI: 10.1160/nukmed-0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
UNLABELLED The aim of this study was designed to investigate the usefulness of thallium-201 single photon emission computed tomography (SPECT) in predicting response of intensity-modulated radiation therapy (IMRT) for recurrent oral squamous cell carcinoma (OSCC). PATIENTS, METHODS Thirty-one patients with histologically proven recurrent OSCC were recruited. Before IMRT, all patients underwent SPECT at 15 min and 120 min after intravenous injection 111 MBq of thallous chloride ((201)Tl). Tumour uptake was measured with the semiquantitative early ratio (ER), delayed ratio (DR), and retention index (RI). The patients were classified into responder (complete response and partial response) and non-responder (stable disease and progressive disease) groups according to the tumour response evaluated by the Response Evaluation Criteria in Solid Tumors guidelines. RESULTS As comparing DR and RI between the two groups, both parameters were significantly higher in the responder group. When a DR of 1.75 was used as a cutoff value for the responders, the receiver operating characteristic (ROC) analyses revealed sensitivity and specificity of 79% and 75%, respectively. At a cutoff value for the responders of a RI of 78.5%, the ROC analyses showed sensitivity and specificity of 95% and 83%, respectively. CONCLUSION Our results suggest that (201)Tl-SPECT, as measured by the DR or RI has clinical potential in predicting response of IMRT for patients with recurrent OSCC. The ROC curve analyses further suggest that RI may be superior to DR in distinguishing responders from non-responders.
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Affiliation(s)
- J K Lee
- Department of Nuclear Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
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Lien HC, Hsiao YH, Lin YS, Yao YT, Juan HF, Kuo WH, Hung MC, Chang KJ, Hsieh FJ. Molecular signatures of metaplastic carcinoma of the breast by large-scale transcriptional profiling: identification of genes potentially related to epithelial-mesenchymal transition. Oncogene 2007; 26:7859-71. [PMID: 17603561 DOI: 10.1038/sj.onc.1210593] [Citation(s) in RCA: 155] [Impact Index Per Article: 9.1] [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: 02/06/2023]
Abstract
Metaplastic carcinoma of the breast (MCB) is a poorly understood subtype of breast cancer. It is generally characterized by the coexistence of ductal carcinomatous and transdifferentiated sarcomatous components, but the underlying molecular alterations, possibly related to epithelial-mesenchymal transition (EMT), remain elusive. We performed transcriptional profiling using half-a-genome oligonucleotide microarrays to elucidate genetic profiles of MCBs and their differences to those of ductal carcinoma of breasts (DCBs) using discarded specimens of four MCBs and 34 DCBs. Unsupervised clustering disclosed distinctive expression profiles between MCBs and DCBs. Supervised analysis identified gene signatures discriminating MCBs from DCBs and between MCB subclasses. Notably, many of the discriminator genes were associated with downregulation of epithelial phenotypes and with synthesis, remodeling and adhesion of extracellular matrix, with some of them have known or inferred roles related to EMT. Importantly, several of the discriminator genes were upregulated in a mutant Snail-transfected MCF7 cell known to exhibit features of EMT, thereby indicating a crucial role for EMT in the pathogenesis of MCBs. Finally, the identification of SPARC and vimentin as poor prognostic factors reinforced the role of EMT in cancer progression. These data advance our understanding of MCB and offer clues to the molecular alterations underlying EMT.
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Affiliation(s)
- H C Lien
- Department of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan
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