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Lin LC, Liou TH, Chi WC, Yen CF, Liao HF, Wu CW. Mobility, educational, and social performance of children with learning problems in Taiwan: A 3-year follow-up study. Dev Med Child Neurol 2022; 64:1156-1167. [PMID: 35318642 DOI: 10.1111/dmcn.15203] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 01/19/2022] [Accepted: 02/10/2022] [Indexed: 11/27/2022]
Abstract
AIM This study evaluated the performance of children with learning problems in Taiwan by using the Taiwan Data Bank of Persons with Disability. METHOD We included 3854 children (2343 males, 1511 females; mean [SD] age 9y 11mo [2y 4mo]) with specific learning disorder (SLD), attention-deficit/hyperactivity disorder (ADHD), autism, epilepsy, or intellectual disabilities for analysis. We used the Functioning Scale of the Disability Evaluation System-Child version to investigate performance at follow-up for at least 3 years. RESULTS These participants demonstrated improvement across all the domains of the International Classification of Functioning, Health, and Disability including for mobility, learning, social participation, and daily living. The children with SLD (p=0.3) and epilepsy (p=0.442) did not demonstrate significant improvement in learning, whereas those with ADHD (p<0.001), autism (p<0.001), and intellectual disabilities (p<0.001) did. The children with epilepsy displayed the most impairment and least improvement. INTERPRETATION This cross-diagnostic study of learning problems indicated the children with autism or ADHD received more structural education. However, education strategies for those with SLD or epilepsy required improvement. Finally, SLD is possibly underdiagnosed in children, and children with epilepsy are affected in multiple aspects. WHAT THIS PAPER ADDS Specific learning disorder (SLD), ADHD, autism, epilepsy, and intellectual disability can cause learning problems in children. Children with ADHD and autism showed more improvement in academic performance. SLD has been neglected and underdiagnosed, resulting in poor improvement. Children with epilepsy have multiple impairments and exhibited minimal improvement.
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Affiliation(s)
- Lien-Chieh Lin
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chou Chi
- School of Occupational Therapy, Chungshan Medical University, Taichung, Taiwan
| | - Chia-Feng Yen
- Department of Public Health, Tzu Chi University, Hualien, Taiwan
| | - Hua-Fang Liao
- Taiwan Association of Child Development and Early Intervention, Hualien City, Taiwan.,School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Loh MS, Kuan YC, Wu CW, Liao CD, Hong JP, Chen HC. Upper Extremity Contralaterally Controlled Functional Electrical Stimulation Versus Neuromuscular Electrical Stimulation in Post-Stroke Individuals: A Meta-Analysis of Randomized Controlled Trials. Neurorehabil Neural Repair 2022; 36:472-482. [PMID: 35574940 DOI: 10.1177/15459683221092647] [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] [Indexed: 11/15/2022]
Abstract
BACKGROUND Electrical stimulation has been employed as a safe and effective therapy for improving arm function after stroke. Contralaterally controlled functional electrical stimulation (CCFES) is a unique method that has progressed from application in small feasibility studies to implementation in several randomized controlled trials. However, no meta-analysis has been conducted to summarize its efficacy. OBJECTIVE To summarize the effect size of CCFES through measures of upper extremity motor recovery compared with that of neuromuscular electrical stimulation (NMES). METHODS The PubMed, Cochrane Library, EMBASE, Scopus, and Google Scholar databases were searched. Randomized controlled trials (RCTs) were selected and subjected to meta-analysis and risk of bias assessment. RESULTS 6 RCTs were selected and 267 participants were included. The Upper Extremity Fugl-Meyer assessment (UEFMA) was included in all studies, the Box and Blocks test (BBT) and active range of motion (AROM) were included in 3 and 4 studies, respectively. The modified Barthel Index (mBI) and Arm Motor Abilities Test (AMAT) were included in 2 and 3 studies, respectively. The CCFES group demonstrated greater improvement than the NMES did in UEFMA (SMD = .42, 95% CI = .07-.76), BBT (SMD = .48, 95% CI = .10-.86), AROM (SMD = .54, 95% CI = .23-.86), and mBI (SMD = .54, 95% CI = .12-.97). However, the results for AMAT did not differ significantly (SMD = .34, 95% CI = -.03-.72). CONCLUSION Contralaterally controlled functional electrical stimulation produced greater improvements in upper extremity hemiplegia in people with stroke than NMES did. PROSPERO registration number: CRD42021245831.
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Affiliation(s)
- Mei-Sean Loh
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Yi-Chun Kuan
- Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Neurology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Center for Evidence-Based Health Care, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chun-De Liao
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Master Program in Long-Term Care, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Jia-Pei Hong
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan
| | - Hung-Chou Chen
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Taipei Neuroscience Institute, Taipei Medical University, Taipei, Taiwan.,Center for Evidence-Based Health Care, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Hsu TH, Lin CL, Wu CW, Chen YW, Vitoonpong T, Lin LC, Huang SW. Accuracy of Critical Shoulder Angle and Acromial Index for Predicting Supraspinatus Tendinopathy. Diagnostics (Basel) 2022; 12:diagnostics12020283. [PMID: 35204373 PMCID: PMC8871498 DOI: 10.3390/diagnostics12020283] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/16/2022] Open
Abstract
Critical shoulder angle (CSA) is the angle between the superior and inferior bony margins of the glenoid and the most lateral border of the acromion. The acromial index (AI) is the distance from the glenoid plane to the acromial lateral border and is divided by the distance from the glenoid plane to the lateral aspect of the humeral head. Although both are used for predicting shoulder diseases, research on their accuracy in predicting supraspinatus tendinopathy in patients with shoulder pain is limited. Data were retrospectively collected from 308 patients with supraspinatus tendinopathy between January 2018 and December 2019. Simultaneously, we gathered the data of 300 patients with shoulder pain without supraspinatus tendinopathy, confirmed through ultrasound examination. Baseline demographic data, CSA, and AI were compared using the independent Student’s t test and Mann–Whitney U test. Categorical variables were analyzed using the chi-square test. A receiver operating characteristic curve (ROC) analysis was performed to investigate the accuracy of CSA and AI for predicting supraspinatus tendinopathy, and the optimal cut-off point was determined using the Youden index. No statistical differences were observed for age, sex, body mass index, evaluated side (dominant), diabetes mellitus, and hyperlipidemia between the groups. The supraspinatus tendinopathy group showed higher CSAs (p < 0.001) than did the non-supraspinatus tendinopathy group. For predicting supraspinatus tendinopathy, the area under the curve (AUC) of ROC curve of the CSA was 76.8%, revealing acceptable discrimination. The AUC of AI was 46.9%, revealing no discrimination. Moreover, when patients with shoulder pain had a CSA > 38.11°, the specificity and sensitivity of CSA in predicting supraspinatus tendinopathy were 71.0% and 71.8%, respectively. CSA could be considered an objective assessment tool to predict supraspinatus tendinopathy in patients with shoulder pain. AI revealed no discrimination in predicting supraspinatus tendinopathy in patients with shoulder pain.
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Affiliation(s)
- Tzu-Herng Hsu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (T.-H.H.); (C.-W.W.); (Y.-W.C.); (L.-C.L.)
| | - Che-Li Lin
- Department of Orthopedic Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan;
- Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (T.-H.H.); (C.-W.W.); (Y.-W.C.); (L.-C.L.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Yi-Wen Chen
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (T.-H.H.); (C.-W.W.); (Y.-W.C.); (L.-C.L.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Timporn Vitoonpong
- Rehabilitation Department, King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand;
| | - Lien-Chieh Lin
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (T.-H.H.); (C.-W.W.); (Y.-W.C.); (L.-C.L.)
| | - Shih-Wei Huang
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan; (T.-H.H.); (C.-W.W.); (Y.-W.C.); (L.-C.L.)
- Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
- Correspondence: ; Tel.: +886-222-490-088 (ext. 1602)
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Chen YJ, Liao CD, Hong JP, Hsu WC, Wu CW, Chen HC. Effects of laser therapy on chronic low back pain: A systematic review and meta-analysis of randomized controlled trials. Clin Rehabil 2021; 36:289-302. [PMID: 34757882 DOI: 10.1177/02692155211057435] [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: 11/16/2022]
Affiliation(s)
- Yu-Jen Chen
- School of Medicine, College of Medicine, 243733Taipei Medical University, Taipei City, Taiwan
| | - Chun-De Liao
- Department of Physical Medicine and Rehabilitation, 159518Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Master Program in Long-Term Care, College of Nursing, 243733Taipei Medical University, Taipei, Taiwan
| | - Jia-Pei Hong
- Department of Physical Medicine and Rehabilitation, 159518Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Wei-Cheng Hsu
- School of Medicine, College of Medicine, 38019China Medical University, Taichung City, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, 159518Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, 243733Taipei Medical University, Taipei City, Taiwan
| | - Hung-Chou Chen
- Department of Physical Medicine and Rehabilitation, 159518Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, 243733Taipei Medical University, Taipei City, Taiwan.,Center for Evidence-Based Health Care, 159518Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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Lin CL, Chen YW, Wu CW, Liou TH, Huang SW. Effect of Hypertonic Dextrose Injection on Pain and Shoulder Disability in Patients with Chronic Supraspinatus Tendinosis: A Randomized Double-Blind Controlled Study. Arch Phys Med Rehabil 2021; 103:237-244. [PMID: 34610286 DOI: 10.1016/j.apmr.2021.07.812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVES To investigate the effect of hypertonic dextrose injection on pain and disability in patients with chronic supraspinatus tendinosis. The secondary aim was to evaluate its effect on the tendon range of motion (ROM) and morphology. DESIGN Randomized double-blind placebo-controlled trial. SETTING Outpatient clinic. PARTICIPANTS Individuals (N=57) with symptomatic chronic supraspinatus tendinosis. INTERVENTIONS Participants were randomly administered ultrasound-guided injections of 20% hypertonic dextrose (study group, n=29) or 5% normal saline (control group, n=28). MAIN OUTCOME MEASURES The primary outcome measure was visual analog scale (VAS) scores for pain and Shoulder Pain and Disability Index (SPADI) scores. Secondary outcomes included the ROM and ultrasound examination findings of the supraspinatus tendon at baseline and at 2, 6, and 12 weeks postintervention. RESULTS The study group exhibited significant improvements in the VAS (mean difference [MD], -2.1; 95% confidence interval [CI], -2.7 to -1.4; P<.001) and SPADI (MD, -11.6; 95% CI, -16.5 to -6.7; P<.001) scores compared with baseline scores at week 2. However, the effect was not sustained to week 6. Flexion ROM increased at weeks 2 (MD, 14.1; 95% CI, 5.7-22.5; P<.001) and 6 (MD, 8.9; 95% CI, 2.4-15.4; P=.003) compared with baseline. The thickness of the supraspinatus tendon improved at weeks 6 (MD, .50; 95% CI, .26-.74; P<.001) and 12 (MD, .61; 95% CI, .37-.84; P<.001) compared with baseline. The ratio of histograms also improved at weeks 6 (MD, .19; 95% CI, .06-.32; P=.002) and 12 (MD, .26; 95% CI, .10-.41; P<.001) compared with baseline. CONCLUSION Hypertonic dextrose injection could provide short-term pain and disability relief in patients with chronic supraspinatus tendinosis. Ultrasound imaging at week 6 revealed changed tendon morphology.
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Affiliation(s)
- Che-Li Lin
- From the Department of Orthopedic Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Wen Chen
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shih-Wei Huang
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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Li Y, Zhang W, Lu YC, Wu CW. Hyper-viscoelastic mechanical behavior of cranial pia mater in tension. Clin Biomech (Bristol, Avon) 2020; 80:105108. [PMID: 32736277 DOI: 10.1016/j.clinbiomech.2020.105108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 04/28/2020] [Accepted: 06/30/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Cranial pia mater, the innermost layer of the meninges, protects the central nervous system by tightly wrapping the brain and damping the external impact force to the brain. Accurate experimental data of the mechanical property of the cranial pia mater can enhance the theoretical prediction of traumatic brain injury or the scientific surgery design for brain disease. The aim of this study is to characterize the mechanical behavior of the cranial pia mater. METHODS In vitro tensile and stress-relaxation experiments of ovine cranial pia mater specimens were conducted at eight strain rates to characterize the rate-dependent viscoelastic property. The tensile and stress-relaxation experimental data were fitted by an Ogden hyper-viscoelastic model with a strain rate function to describe the mechanical behavior of the cranial pia mater. FINDINGS The elastic modulus and the ultimate stress are significantly increased from 5.545 MPa and 0.535 MPa at 0.00167 s-1 to 18.345 MPa and 2.547 MPa at 0.83 s-1 (p < .0001), respectively. The initial stress and the long-term stress (300 s) are also increased significantly with the increasing strain rates (p < .0001). A good fit of the experimental data with the Ogden hyper-viscoelastic model incorporated with a strain rate function was achieved (R2 > 0.93). INTERPRETATION The cranial pia mater exhibits as a rate-dependent hyper-viscoelastic material in the tensile and stress-relaxation experiments. Compared with the brain, the stiffer nature of the cranial pia mater indicates its essential role in brain protection. The rate-dependent constitutive model provides a proper description of the hyper-viscoelastic characteristics of the cranial pia mater in tension and may provide a basic constitutive relationship for numerical simulations of traumatic brain injury.
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Affiliation(s)
- Y Li
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China
| | - W Zhang
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China
| | - Y-C Lu
- Division of Diagnostic Imaging and Radiology, Children's National Hospital, Washington, DC 20010, USA
| | - C W Wu
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China.
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Kung CY, Fang WL, Wang RF, Liu CA, Li AFY, Wu CW, Shyr YM, Chou SC, Huang KH. Prognosis and clinicopathologic features in patients with gastric stump cancer after curative surgery. ACTA ACUST UNITED AC 2020; 27:e259-e264. [PMID: 32669931 DOI: 10.3747/co.27.6017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background Gastric stump ("remnant") cancer is the development of a malignancy related to previous gastric surgery. Prognosis in gastric stump cancer, compared with that in primary gastric cancer, is still controversial. Methods From January 1988 to December 2012 at a single medical centre in Taiwan, 105 patients with gastric stump cancer, including 85 with previous peptic ulcer disease and 20 with previous gastric cancer, were analyzed for clinicopathologic characteristics and overall survival (os). Results The 5-year os rates for patients with gastric stump cancer and with primary gastric cancer were 51.2% and 54.5% respectively (p = 0.035). Analysis of clinicopathologic characteristics indicated that, compared with patients having primary gastric cancer, those with gastric stump cancer had more lymph node metastasis (p < 0.001) and had been diagnosed at a more advanced stage (p = 0.047). Multivariate analysis with os as an endpoint showed that age [p = 0.015; hazard ratio (hr): 2.300; 95% confidence interval (ci): 1.173 to 4.509], tumour size (p = 0.037; hr: 1.700; 95% ci: 1.031 to 2.801), stromal reaction (p = 0.021; hr: 1.802; 95% ci: 1.094 to 2.969), and pathologic N category (p = 0.001; hr: 1.449; 95% ci: 1.161 to 1.807) were independent predictors in gastric stump cancer. The os rates for patients with gastric stump cancer who previously had gastric cancer or peptic ulcer disease were 72.9% and 50.0% respectively (p = 0.019). The Borrmann classification was more superficial (p = 0.005), lymph node metastases were fewer (p = 0.004), and staging was less advanced (p = 0.025) in patients with gastric stump cancer who previously had gastric cancer than in their counterparts who previously had peptic ulcer disease. Conclusions Survival is poorer in patients with gastric stump cancer who previously had peptic ulcer disease than in those who previously had primary gastric cancer. Patients with gastric stump cancer who previously had gastric cancer and could receive curative gastrectomy tended to have a better prognosis because of a more superficial Borrmann classification. Regular follow-up in patients who have undergone gastric surgery is recommended for the early detection of gastric stump cancer.
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Affiliation(s)
- C Y Kung
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - W L Fang
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - R F Wang
- Department of Emergency Medicine, Taipei City Hospital, Ren-Ai Branch, Taipei, Taiwan
| | - C A Liu
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - A F Y Li
- School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - C W Wu
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Y M Shyr
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - S C Chou
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - K H Huang
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
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Meng YY, Wu CW, Yu B, Li H, Chen M, Qi GX. PARP-1 Involvement in Autophagy and Their Roles in Apoptosis of Vascular Smooth Muscle Cells under Oxidative Stress. Folia Biol (Praha) 2018; 64:103-111. [PMID: 30394268] [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: 06/08/2023]
Abstract
Autophagy and poly(ADP-ribose) polymerase 1 (PARP-1) are activated and involved in a series of cell processes under oxidative stress, which is associated with pathogenesis of atherosclerosis. Research on their relationship under oxidative stress has been limited. In this study, we aimed to investigate the activation, relationship, and role of autophagy and PARP-1 in vascular smooth muscle cell (VSMC) death under oxidative stress. This study explored the signal molecule PARP-1 and autophagy in VSMCs using gene silencing and the hydrogen peroxide (H2O2)-stimulated oxidative stress model. We observed that H2O2 could induce autophagy in VSMCs, and the inhibition of autophagy could protect VSMCs against oxidative stress-mediated cell death. Meanwhile, PARP-1 could also be activated by H2O2. Additionally, we analysed the regulatory role of PARP-1 in oxidative stress-mediated autophagy and found that PARP-1 was a novel factor involved in the H2O2-induced autophagy via the AMPK-mTOR pathway. Finally, PARP-1 inhibition protected VSMCs against caspase-dependent apoptosis. These data suggested that PARP-1 played a critical role in H2O2-mediated autophagy and both of them were involved in apoptosis of VSMCs.
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Affiliation(s)
- Y Y Meng
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - C W Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - B Yu
- Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin, Heilongjiang Province, China
| | - H Li
- Department of Cardiology, No.1 Central Hospital of Baoding, Baoding, Hebei Province, China
| | - M Chen
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - G X Qi
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China
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Abstract
BACKGROUND Gout commonly involves joint inflammation, and clinical epidemiological studies on involved tendons are scant. Rotator cuff tears are the most common cause of shoulder disability, and surgery is one of the choices often adopted to regain previous function. PURPOSE To investigate the risk of receiving rotator cuff repair surgery among patients with gout and to analyze possible risk factors to design an effective prevention strategy. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS The authors studied a 7-year longitudinal follow-up of patients from the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005). This included a cohort of patients who received a diagnosis of gout during 2004-2008 (gout cohort) and a cohort matched by propensity scores (control cohort). A 2-stage approach that used the National Health Interview Survey 2005 was used to obtain missing confounding variables from the LHID2005. The crude hazard ratio (HR) and adjusted HR were estimated between the gout and control cohorts. RESULTS The gout and control cohorts comprised 32,723 patients with gout and 65,446 people matched at a ratio of 1:2. The incidence of rotator cuff repair was 31 and 18 per 100,000 person-years in the gout and control cohorts, respectively. The crude HR for rotator cuff repair in the gout cohort was 1.73 (95% confidence interval [CI], 1.23-2.44; P < .01) during the 7-year follow-up period. After adjustment for covariates by use of the 2-stage approach, the propensity score calibration-adjusted HR was 1.60 (95% CI, 1.12-2.29; P < .01) in the gout cohort. Further analysis revealed that the adjusted HR was 1.73 (95% CI, 1.20-2.50; P < .001) among patients with gout who did not take hypouricemic medication and 2.70 (95% CI, 1.31-5.59; P < .01) for patients with gout aged 50 years or younger. CONCLUSION Patients with gout, particularly those aged 50 years or younger and without hypouricemic medication control, are at a relatively higher risk of receiving rotator cuff repair surgery. Strict control of uric acid levels with hypouricemic medication may effectively reduce the risk of rotator cuff repair.
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Affiliation(s)
- Shih-Wei Huang
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Li-Fong Lin
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,School of Gerontology Health Management, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Lin
- Department of Mathematics, Soochow University, Taipei, Taiwan.,Evidence-Based Medicine Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Wu CW, Huang SW, Lin JW, Liou TH, Chou LC, Lin HW. Risk of stroke among patients with cerebral palsy: a population-based cohort study. Dev Med Child Neurol 2017; 59:52-56. [PMID: 27346658 DOI: 10.1111/dmcn.13180] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2016] [Indexed: 12/28/2022]
Abstract
AIM The aim of the study was to investigate the risk of stroke in patients with cerebral palsy (CP), based on nationwide data in Taiwan. METHOD This prospective cohort study was comprised of patients recorded on the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005) who had a diagnosis of CP (n=1975) in records between 1 January 2004 and 31 December 2007. A comparison group (1:5) drawn from the same database was matched for age and sex (n=9875). Each patient was tracked by data until the development of stroke or the end of 2008. Cox proportional-hazards regression analysis was used to evaluate the hazard ratios after adjusting for potential confounding factors. RESULTS Patients with CP were more likely to suffer stroke than the comparison population, after adjusting for potential confounding factors (adjusted hazard ratio: 2.17; 95% confidence interval [CI]: 1.74-2.69). The hazard ratio of stroke was 4.78 (95% CI: 3.18-7.17) and 1.57 (95% CI: 1.20-2.05) for patients with CP aged 50 years and under, and over 50 years respectively. INTERPRETATION Cerebral palsy is a risk factor or marker for stroke that is independent of traditional stroke risk factors. Further research in this area is warranted.
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Affiliation(s)
- Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Shih-Wei Huang
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jia-Wei Lin
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.,Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, Taiwan
| | - Lin-Chuan Chou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Lin
- Department of Mathematics, Soochow University, Taipei, Taiwan.,Evidence Based Medicine Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Wu CW, Vemula RR, Kothare MV, Sircar S. Experimental Study of a Novel Rapid Pressure-Swing Adsorption Based Medical Oxygen Concentrator: Effect of the Adsorbent Selectivity of N2 over O2. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b04570] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chin-Wen Wu
- Department
of Chemical and
Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Rama Rao Vemula
- Department
of Chemical and
Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department
of Chemical and
Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department
of Chemical and
Biomolecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Chung HP, Huang KH, Yang SL, Chang WK, Wu CW, Setzpfandt F, Pertsch T, Neshev DN, Chen YH. Adiabatic light transfer in titanium diffused lithium niobate waveguides. Opt Express 2015; 23:30641-30650. [PMID: 26698696 DOI: 10.1364/oe.23.030641] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on the realization of adiabatic light transfer in lithium niobate (LiNbO3) waveguides. This peculiar adiabatic tunneling scheme was implemented in a three-waveguide coupling configuration with the intermediate waveguide being inclined with respect to the outer waveguides to facilitate the adiabatic passage process. We have investigated and determined the adiabatic conditions of the LiNbO3 device in terms of the structure configuration of the waveguide system and found optimal structure parameters by both simulation and experimental approaches. Broadband adiabatic couplings of bandwidth ~456 and 185 nm and peak coupling efficiencies of >0.96 have been obtained with a 2-cm long device for TE- and TM-polarized fundamental modes, respectively. Longer (5 cm) devices were also studied and found to be useful in increasing the adiabaticity of the device, especially for the TM-polarized mode.
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Han B, Zhang XY, Wang DY, Ren WW, Gu YY, Zhu L, Chang YL, Wang LP, Wu CW, Jin QQ, Chen C, Lyu DZ, Zhao JY, Shao B, He JC. Serum brain-derived neurotrophic factor levels and psychotic symptoms in heroin dependence. Compr Psychiatry 2015; 62:80-5. [PMID: 26343470 DOI: 10.1016/j.comppsych.2015.06.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/06/2015] [Indexed: 01/19/2023] Open
Abstract
OBJECTIVES Psychotic symptoms are commonly observed among heroin users. Low serum brain-derived neurotrophic factor (BDNF) levels have been reported in schizophrenia and psychosis; however, studies assessing the relationship between serum BDNF levels and psychotic symptoms in heroin dependence are lacking. METHOD A total of 31 heroin-dependent patients who had never experienced psychotic symptoms during heroin consumption and 21 patients with a history of psychotic symptoms were consecutively recruited. We measured by enzyme-linked immunosorbent assay (ELISA) serum BDNF levels during early abstinence. A gender- and age-matched sample of healthy controls was also recruited and underwent measurement of BDNF. RESULTS BDNF levels were significantly lower in patients with psychotic symptoms than in those without psychotic symptoms (P<0.001). BDNF levels were not found to be correlated with sex, age, age of onset, duration of heroin use, average daily dose of heroin use, frequency of heroin use, SDS scores, BAI scores and BDI scores in the psychotic subsamples (all P>0.05). CONCLUSIONS Our findings suggest that heroin-dependent patients with psychotic symptoms share some of the neurotrophic insult that characterizes schizophrenia and psychosis.
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Affiliation(s)
- B Han
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - X Y Zhang
- Beijing HuiLongGuan Hospital, Peking University, Beijing, BJ 100096, PR China; Menninger Department of Psychiatry and Behavioral Sciences, Baylor College of Medicine, Houston, TX 77030, USA
| | - D Y Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China; Department of Psychiatry, People's Hospital of Yueqing, Wenzhou, 325600, China
| | - W W Ren
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Y Y Gu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - L Zhu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Y L Chang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - L P Wang
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - C W Wu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Q Q Jin
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - C Chen
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - D Z Lyu
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - J Y Zhao
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - B Shao
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - J C He
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China.
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Wu CW, Kothare MV, Sircar S. Correction to “Equilibrium Isotherm and Mass Transfer Coefficient for Adsorption of Pure Argon on Small Particles of Pelletized LiLSX Zeolite”. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Wu CW, Kothare MV, Sircar S. Correction to “Column Dynamic Study of Mass Transfer of Pure N 2 and O 2 into Small Particles of Pelletized LiLSX Zeolite”. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01522] [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: 11/29/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Wu CW, Kothare MV, Sircar S. Equilibrium Isotherm and Mass Transfer Coefficient for Adsorption of Pure Argon on Small Particles of Pelletized Lithium-Exchanged Low Silica X Zeolite. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504633s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical and
Bio-molecular Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Wu CW, Kothare MV, Sircar S. Column Dynamic Study of Mass Transfer of Pure N2 and O2 into Small Particles of Pelletized LiLSX Zeolite. Ind Eng Chem Res 2014. [DOI: 10.1021/ie503260y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Yau TO, Wu CW, Dong Y, Tang CM, Ng SSM, Chan FKL, Sung JJY, Yu J. microRNA-221 and microRNA-18a identification in stool as potential biomarkers for the non-invasive diagnosis of colorectal carcinoma. Br J Cancer 2014; 111:1765-71. [PMID: 25233396 PMCID: PMC4453736 DOI: 10.1038/bjc.2014.484] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/06/2014] [Accepted: 08/08/2014] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND The detection of microRNA (miRNA) dysregulation in stool is a novel approach for the diagnosis of colorectal carcinoma (CRC). The aim of this study is to investigate the use of miR-221 and miR-18a in stool samples as non-invasive biomarkers for CRC diagnosis. METHODS A miRNA expression array containing 667 miRNAs was performed to identify miRNA dysregulation in CRC tissues. We focused on miR-221 and miR-18a, two significantly upregulated miRNAs which were subsequently verified in 40 pairs of CRC tissues and 595 stool samples (198 CRCs, 199 polyps and 198 normal controls). RESULTS miR-221 and miR-18a were upregulated in the miRNA expression array. miR-221 and miR-18a levels were also significantly higher in 40 CRC tumours compared with their respective adjacent normal tissues. In stool samples, miR-221 and miR-18a showed a significant increasing trend from normal controls to late stages of CRC (P<0.0001). The levels of stool miR-221 and miR-18a were both significantly higher in subjects with stages I+II (miR-221: P<0.0001, miR-18a: P<0.0001) and stages III+IV of CRC (miR-221: P=0.0004, miR-18a: P<0.0001) compared with normal controls. The AUC of stool miR-221 and miR-18a were 0.73 and 0.67 for CRC patients as compared with normal controls, respectively. No significant differences in stool miR-221 and miR-18a levels were found between patients with proximal and distal CRCs. The use of antibiotics did not influence stool miRNA-221 and miRNA-18a levels. CONCLUSIONS Stool-based miR-221 can be used as a non-invasive biomarker for the detection of CRC.
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Affiliation(s)
- T O Yau
- 1] Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China [2] Gastrointestinal Cancer Biology & Therapeutics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - C W Wu
- 1] Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China [2] Gastrointestinal Cancer Biology & Therapeutics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Y Dong
- 1] Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China [2] Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - C-M Tang
- 1] Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China [2] Department of Pharmacology, University of Oxford, Oxford OX1 3QT, UK
| | - S S M Ng
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, China
| | - F K L Chan
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - J J Y Sung
- Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - J Yu
- 1] Institute of Digestive Disease and Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China [2] Gastrointestinal Cancer Biology & Therapeutics Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
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Wu CW, Kothare MV, Sircar S. Model Analysis of Equilibrium Adsorption Isotherms of Pure N2, O2, and Their Binary Mixtures on LiLSX Zeolite. Ind Eng Chem Res 2014. [DOI: 10.1021/ie501750h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Wu CW, Kothare MV, Sircar S. Equilibrium Adsorption Isotherms of Pure N2 and O2 and Their Binary Mixtures on LiLSX Zeolite: Experimental Data and Thermodynamic Analysis. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500268s] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chin-Wen Wu
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Mayuresh V. Kothare
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
| | - Shivaji Sircar
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18015, United States
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Huang SW, Lin JW, Wang WT, Wu CW, Liou TH, Lin HW. Hyperthyroidism is a risk factor for developing adhesive capsulitis of the shoulder: a nationwide longitudinal population-based study. Sci Rep 2014; 4:4183. [PMID: 24567049 PMCID: PMC3934745 DOI: 10.1038/srep04183] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 02/07/2014] [Indexed: 12/18/2022] Open
Abstract
The purpose of this study was to investigate the prevalence and risk of adhesive capsulitis
among hyperthyroidism patients. The data were obtained from the Longitudinal Health
Insurance Database 2005 (LHID 2005) in Taiwan, using 1 million participants and a
prospective population-based 7-year cohort study of survival analysis. The ambulatory-care
claim records of patients diagnosed according to the International Classification of
Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes relating to hyperthyroidism
between January 1, 2004 and December 31, 2007, were obtained. The prevalence and the
adjusted hazard ratio (HR) of adhesive capsulitis among hyperthyroid patients and the
control group were estimated. Of 4472 hyperthyroid patients, 162 (671/100 000 person-years)
experienced adhesive capsulitis during the 24 122 person-year follow-up period. The crude HR
of stroke was 1.26 (95% confidence interval [CI], 1.06 to 1.49), which was larger than that
of the control group. The adjusted HR of developing adhesive capsulitis was 1.22 (95% CI,
1.03 to 1.45) for hyperthyroid patients during the 7-year follow-up period, which achieved
statistical significance. The results of our large-scale longitudinal population-based study
indicated that hyperthyroidism is an independent risk factor of developing adhesive
capsulitis.
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Affiliation(s)
- Shih-Wei Huang
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Jia-Wei Lin
- Department of Neurosurgery, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wei-Te Wang
- Department of Physical Medicine and Rehabilitation, Changhua Christian Hospital, Changhua, Taiwan
| | - Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- 1] Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan [2] Graduate Institute of Injury Prevention, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Lin
- 1] Department of Mathematics, Soochow University, Taipei, Taiwan [2] Evidence-Based Medicine Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Lü ZM, Cui WT, Liu LQ, Li HM, Wu CW. Phylogenetic relationships among Octopodidae species in coastal waters of China inferred from two mitochondrial DNA gene sequences. Genet Mol Res 2013; 12:3755-65. [PMID: 24085437 DOI: 10.4238/2013.september.19.7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Octopus in the family Octopodidae (Mollusca: Cephalopoda) has been generally recognized as a "catch-all" genus. The monophyly of octopus species in China's coastal waters has not yet been studied. In this paper, we inferred the phylogeny of 11 octopus species (family Octopodidae) in China's coastal waters using nucleotide sequences of two mitochondrial DNA genes: cytochrome c oxidase subunit I (COI) and 16S rRNA. Sequence analysis of both genes revealed that the 11 species of Octopodidae fell into four distinct groups, which were genetically distant from one another and exhibited identical phylogenetic resolution. The phylogenies indicated strongly that the genus Octopus in China's coastal waters is also not monophyletic, and it is therefore clear that the Octopodidae systematics in this area requires major revision. It is demonstrated that partial sequence information of both the mitochondrial genes 16S rRNA and COI could be used as diagnostic molecular markers in the identification and resolution of the taxonomic ambiguity of Octopodidae species.
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Affiliation(s)
- Z M Lü
- Zhejiang Provincial Key Laboratory of Marine Germplasm Resources Exploration and Utilization, College of Marine Sciences, Zhejiang Ocean University, Zhoushan, China
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Qi P, Guo B, Zhang Z, Xie C, Wu CW. Complete mitochondrial genome of Abramis brama orientalis Berg (cypriniformes, Cyprinidae, Leuciscinae). Mitochondrial DNA 2013; 25:351-2. [PMID: 23815319 DOI: 10.3109/19401736.2013.803089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In this study, we cloned and sequenced the complete mitochondrial genome of Abramis brama orientalis Berg. The genome was 16,610 bp (LR) in length and consisted of 13 protein-coding genes, 22 tRNA genes, 2 ribosomal RNA genes and 2 main non-coding regions [the control region (CR) and the origin of the light strand replication], the gene composition and order of which was similar to those reported from other fish mitochondrial genomes. The overall base composition of the heavy strand was T 26.7%, C 26.5 %, A 30.0% and G 16.8%, with a slight A+T bias of 56.7%. This mitogenome sequence data would play an important role in population genetics and phylogenetic analysis of the Leuciscinae.
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Affiliation(s)
- Pengzhi Qi
- College of Fisheries, Huazhong Agricultural University , Wuhan, Hubei , PR China and
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Abstract
BACKGROUND Research has found evidence that chronic inflammation may promote atherosclerotic disease. The purpose of this study was to test the hypothesis that rhinosinusitis is a risk factor for stroke. METHODS This prospective cohort study comprised patients recorded on the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005) who had received a diagnosis of rhinosinusitis (n = 53,653) between January 1, 2004 and December 31, 2005. A control group (1:4) drawn from the same database was matched for age and gender (n = 214,624). Each patient was followed up using data entered until the end of 2006. Cox proportional hazard regressions were performed to evaluate the hazard ratios (HRs) after adjusting for potential confounding factors. RESULTS We found that patients with rhinosinusitis were more likely to suffer strokes than the control population, after adjusting for potential confounders (adjusted HR, 1.39; 95% confidence interval [CI], 1.28~1.50). The HR of stroke was 1.39 (95% CI, 1.28~1.51) for acute sinusitis patients, and 1.34 (95% CI, 1.04~1.74) for chronic sinusitis patients. CONCLUSION Both acute and chronic sinusitis are risk factors or markers for stroke that is independent of traditional stroke risk factors. Further research in this important area of epidemiology is warranted.
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Affiliation(s)
- Chin-Wen Wu
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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Zhang N, Li X, Wu CW, Dong Y, Cai M, Mok MTS, Wang H, Chen J, Ng SSM, Chen M, Sung JJY, Yu J. microRNA-7 is a novel inhibitor of YY1 contributing to colorectal tumorigenesis. Oncogene 2012. [PMID: 23208495 DOI: 10.1038/onc.2012.526] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Using microRNA (miRNA) expression array, we identified that miR-7 was deregulated in colorectal cancer (CRC). We studied the biological role and molecular target of miR-7 in CRC. miR-7 was downregulated in six out of seven colon cancer cell lines. Ectopic expression of miR-7 suppressed colon cancer cell proliferation (P<0.05), induced apoptosis (P<0.05) and caused cell-cycle arrest in G1 phase (P<0.05). The tumor suppressive function of miR-7 was further confirmed in nude mice (P<0.05). The 3'-untranslated region (3'UTR) of Yin Yang 1 (YY1) mRNA contains an evolutionarily conserved miR-7 binding site using in silico searches, luciferase reporter assay and western blot analysis confirmed that miR-7 directly bound to YY1 3'UTR to negatively regulate the protein expression of YY1 in colon cancer cell lines HCT116 and LOVO. Intriguingly, knock-down of YY1 in three colon cancer cell lines (HCT116, LOVO and DLD1) consistently suppressed cell proliferation (P<0.01) and induced apoptosis (P<0.01), indicating the opposite functions of miR-7 and YY1 in CRC. Consistent with these data, ectopic expression of YY1 promoted cell growth by increasing proliferation (P<0.01) and suppressing apoptosis (P<0.001). The tumorigenic ability of YY1 was further confirmed in vivo in xenograft-nude mouse model (P<0.01). In addition, pathway analyses revealed that the oncogenic effect by YY1 was associated with inhibiting p53 and modulating its downstream effectors p15, caspase cascades and C-Jun, and activating Wnt signaling pathway through activating β-catenin, anti-apoptotic survivin and fibroblast growth factor 4. Furthermore, multivariate analysis revealed that patients with YY1 protein high expression had a significant decrease in overall survival, and Kaplan-Meier survival curves showed that these patients had significantly shorter survival than others (P<0.0001). In conclusion, MiR-7 is a novel miRNA with tumor suppressive function in colon cancer by targeting oncogenic YY1. YY1 promotes colon cancer growth through inhibiting p53 and promoting Wnt signaling pathways and serves as an independent prognostic biomarker for CRC patients.
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Affiliation(s)
- N Zhang
- 1] Department of Medicine and Therapeutics, Institute of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong [2] Department of Gastroenterology, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
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Hao WR, Lin HW, Chao PZ, Wu CW, Yen TH, Liu JC, Liou TH. Risk of myocardial infarction in patients with rhinosinusitis. Atherosclerosis 2012; 226:263-8. [PMID: 23159230 DOI: 10.1016/j.atherosclerosis.2012.10.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 10/22/2012] [Accepted: 10/23/2012] [Indexed: 11/29/2022]
Abstract
Research has indicated that inflammation promote all phases of atherosclerosis. The current study tested the hypothesis that rhinosinusitis is a risk marker for myocardial infarction (MI). Data on the general population were obtained from the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005). The study cohort comprised patients who had received a recorded diagnosis of rhinosinusitis (N = 52,930) between January 1, 2004 and December 31, 2004. The comparison group consisted of patients who had not received a rhinosinusitis diagnosis, and who were matched for age and sex with the study group at a ratio of 4 controls to 1 study patient (1:4) (N = 211,720). Each patient's condition was followed using database entries until the end of 2006. Cox proportional hazard regressions were used to evaluate the 3-year MI-free survival rates, after adjusting for known confounding factors. We found that patients with rhinosinusitis were more likely than the control group to have MI, after adjusting for potential confounders [adjusted hazard ratio (HR), 1.84; 95% confidence interval (CI), 1.44 ∼ 2.40]. Of the total 264 650 patients, 290 experienced MI during the 3-year follow-up period, including 8 acute sinusitis patients, 77 chronic sinusitis patients, and 205 control patients. The incidence rate of MI was 6.19 (95% CI 5.01-7.65) per 10,000 person-years for rhinosinusitis patients, compared to 3.51 (95% CI, 3.06-4.02) for the control patients. From this study, rhinosinusitis may be associated with MI. Further research in this important area of public health is warranted.
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Affiliation(s)
- Wen-Rui Hao
- Department of Cardiovascular Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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Affiliation(s)
- Chin-Wen Wu
- Departments of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Pin-Zhir Chao
- Departments of Otolaryngology, and Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Wen-Rui Hao
- Departments of Cardiovascular Medicine, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tsan-Hon Liou
- Departments of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Injury Prevention, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Lin
- Department of Mathematics, Soochow University, Taipei, Taiwan
- Evidence Based Medicine Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
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Dionigi G, Alesina PF, Barczynski M, Boni L, Chiang FY, Kim HY, Materazzi G, Randolph GW, Terris DJ, Wu CW. Recurrent laryngeal nerve injury in video-assisted thyroidectomy: lessons learned from neuromonitoring. Surg Endosc 2012; 26:2601-8. [PMID: 22476838 DOI: 10.1007/s00464-012-2239-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
Abstract
INTRODUCTION The objective of the study was to assess the mechanism of recurrent laryngeal nerve (RLN) injury during video-assisted thyroidectomy (VAT). METHODS The study examined 201 nerves at risk (NAR). VAT with laryngeal neuromonitoring (LNM) was outlined according to this scheme: (a) preparation of the operative space; (b) vagal nerve stimulation (V1); (c) ligature of the superior thyroid vessels; (d) visualization, stimulation (R1), and dissection of the RLN; (e) extraction of the lobe; (f) resection of the thyroid lobe; (g) final hemostasis; (h) verification of the electrical integrity of the RLN (V2, R2). The site, cause, and circumstance of nerve injury were elucidated with the application of LNM. Laryngeal nerve injuries were classified into type 1 injury (segmental) and 2 (diffuse). RESULTS Fourteen nerves (6.9 %) experienced loss of R2 and V2 signals. 80 percent of lesions occurred in the distal 1 cm of the course of the RLN. The incidence of type 1 and 2 injuries was 71 and 29 % respectively. The mechanisms of injury were traction (70 %) and thermal (30 %). Traction lesions were created during the extraction of the lobe from the mini-incision [point (e)]. Thermal injury occurred during energy-based device use in (f) and (g) circumstances. CONCLUSIONS RLN palsy still occurs with routine endoscopic identification of the nerve, even combined with LNM. LNM has the advantage of elucidating the mechanism of RLN injury. Traction and thermal RLN injuries are the most frequent lesions in VAT.
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Affiliation(s)
- G Dionigi
- Department of Surgical Sciences, Endocrine Surgery Research Center, University of Insubria, Varese, Italy.
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Liou TH, Wu CW, Hao WR, Hsu MI, Liu JC, Lin HW. Risk of myocardial infarction in women with pelvic inflammatory disease. Int J Cardiol 2012; 167:416-20. [PMID: 22265583 DOI: 10.1016/j.ijcard.2012.01.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 06/20/2011] [Accepted: 01/01/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is evidence that chronic inflammation may promote atherosclerotic disease. The purpose of this study was to test the hypothesis that pelvic inflammatory disease (PID) is a risk marker for myocardial infarction (MI). METHOD Using the Taiwan Longitudinal Health Insurance Database 2005 (LHID2005), this cohort study comprised patients with a recorded diagnosis of PID (N=68,668) between January 1, 2004 and December 31, 2005, with age-matched controls (1:2) (N=136,906). Each patient was followed-up using entry data until the end of 2006. Cox proportional hazard regressions were used to evaluate the up to 3-year MI-free survival rates, after adjusting for known confounding factors. RESULTS We found that patients with PID were more likely to have MI than the control population after adjusting for potential confounders [adjusted hazard ratio (HR), 1.86, 95% confidence interval (CI), 1.23-2.81]. When stratified by patient's age, the adjusted HR for MI was 2.09 (95% CI, 1.24-3.52) for patients with PID aged over 55 years. However, the adjusted HR for MI occurring was not significant for patients with PID aged ≤ 55 years. CONCLUSIONS PID is a risk marker for MI that is independent of traditional MI risk factors. Further research in this important area of public health is warranted.
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Affiliation(s)
- Tsan-Hon Liou
- Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
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Zhang W, Shiozawa H, Wu CW, Hamerton I, Cox DC, Silva SRP. The effect of pH on the functionalization of nylon fabric with carbon nanotubes. J Nanosci Nanotechnol 2012; 12:84-90. [PMID: 22523949 DOI: 10.1166/jnn.2012.5130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Single walled carbon nanotubes (SWCNTs) were dispersed in water and attached to nylon fabrics by a dip-drying procedure; scanning electron microscopy and Raman spectroscopy suggest the attachment of the SWCNTs. The electrical resistance of the functionalized fabrics is found to be pH-dependent, which is correlated with the quantity of SWCNTs dispersed in water at different values of pH. This can be further ascribed to the influence of the pK(a) of the acid (e.g., acetic acid in this study) used to tune pH. The acid may affect the dispersion of SWCNTs through two different mechanisms: (1) the free protons may protonate the amine and/or sulfonate group in the dye molecules, resulting in a variety of interactions among the dye molecules, SWCNTs and water molecules and (2) the resulting ions may increase the ionic strength of the solution, compressing the electric double layers of SWCNT colloids and thus impairing their stability. The former possibility is ruled out by data obtained using X-ray photoelectron spectroscopy, Raman spectroscopy, and ultraviolet-visible-near infrared spectroscopy; thus the latter is proposed to account for the experimental results. The colour strength of the functionalized fabrics increases with increasing pH, which is in agreement with their measured electrical properties.
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Affiliation(s)
- W Zhang
- Nanoelectronics Centre, Advanced Technology Institute, University of Surrey, Guildford, Surrey GU2 7XH, United Kingdom
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Abstract
Microneedles have recently received much attention as a novel way for transdermal drug delivery. In this paper, a numerical simulation of the insertion process of the microneedle into human skin is reported using the finite element method. A multilayer skin model consisting of the stratum corneum, dermis and underlying hypodermis has been developed. The effective stress failure criterion has been coupled with the element deletion technique to predict the complete insertion process. The numerical results show a good agreement with the reported experimental data for the deformation and failure of the skin and the insertion force. The influences of the mechanical properties of the skin and the microneedle geometry (e.g. tip area, wall angle and wall thickness) on the insertion force are discussed. The numerical results are helpful for the optimum design of the microneedles for the transdermal drug delivery system.
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Affiliation(s)
- X Q Kong
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian 116023, PR China
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Abstract
Recent researches have shed light on the biological importance of microRNAs (miRNAs) in colorectal cancer (CRC) genesis, progression and response to treatments. The potential utility of miRNAs in the preclinical stage have been explored and investigated. In this review, we explored the literature and reviewed the cutting edge progress in the discovery of noninvasive plasma and faecal miRNAs for CRC early diagnosis, as well as their measurability and predictability. We also discussed the utility of miRNAs as novel prognostic and predictive markers, and their association with CRC clinical phenotypes including recurrence, metastasis and therapeutic outcomes. Finally, we summarised miRNA-related single-nucleotide polymorphisms and their potential influence on sporadic CRC susceptibility and therapeutic response. In conclusion, the use of miRNAs as biomarker for CRC is still in its infancy and need further characterisation and evaluation.
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Affiliation(s)
- Y Dong
- Institute of Digestive Disease and Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China
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Shi LT, Jiang CG, Ma GJ, Wu CW. Electric field assisted manipulation of microdroplets on a superhydrophobic surface. Biomicrofluidics 2010; 4:41101. [PMID: 21221172 PMCID: PMC3017567 DOI: 10.1063/1.3523472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 11/12/2010] [Indexed: 05/30/2023]
Abstract
The efficient manipulation of low-volume droplets offers many potential applications in relation to chemical and biomedical tests and protocols. A novel approach to the manipulation of a microdroplet on a superhydrophobic surface is introduced in the present communication. The microdroplet was first picked up onto a hydrophilic needle, transported from one location to another, and finally released under the action of an electric field force. Three key parameters in this process, the radius of the droplet, the distance between the two electrodes, and the required voltage, were investigated. This study should be helpful for the design of microfluidic devices.
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Affiliation(s)
- L T Shi
- Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
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Yu J, Ma X, Cheung KF, Li X, Tian L, Wang S, Wu CW, Wu WKK, He M, Wang M, Ng SSM, Sung JJY. Epigenetic inactivation of T-box transcription factor 5, a novel tumor suppressor gene, is associated with colon cancer. Oncogene 2010; 29:6464-74. [PMID: 20802524 DOI: 10.1038/onc.2010.370] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2010] [Revised: 07/08/2010] [Accepted: 07/08/2010] [Indexed: 12/11/2022]
Abstract
T-box transcription factor 5 (TBX5) is a member of a phylogenetically conserved family of genes involved in the regulation of developmental processes. The function of TBX5 in cancer development is largely unclear. We identified that TBX5 was preferentially methylated in cancer using methylation-sensitive arbitrarily primed PCR. We aim to clarify the epigenetic inactivation, biological function and clinical significance of TBX5 in colon cancer. Promoter methylation was evaluated by combined bisulfite restriction analysis and bisulfite genomic sequencing. Cell proliferation was examined by cell viability assay and colony formation assay, apoptosis by flow cytometry and cell migration by wound-healing assay. TBX5 target genes were identified by cDNA microarray analysis. Cox regression model and log-rank test were used to identify independent predictors of prognosis. TBX5 was silenced or downregulated in 88% (7/8) colon cancer cell lines, but was expressed in normal colon tissues. Loss of gene expression was associated with promoter methylation. The biological function of TBX5 in human colon cancer cells was examined. Re-expression of TBX5 in silenced colon cancer cell lines suppressed colony formation (P<0.001), proliferation (P<0.001), migration and induced apoptosis (P<0.01). Induction of apoptosis was mediated through cross-talk of extrinsic apoptosis pathway, apoptotic BCL2-associated X protein and Granzyme A signaling cascades. TBX5 suppressed tumor cell proliferation and metastasis through the upregulation of cyclin-dependent kinase inhibitor 2A, metastasis suppressor 1 and downregulation of synuclein gamma and metastasis-associated protein 1 family member 2. TBX5 methylation was detected in 68% (71/105) of primary colon tumors. Multivariate analysis showed that patients with TBX5 methylation had a significantly poor overall survival (P=0.0007). In conclusion, we identified a novel functional tumor suppressor gene TBX5 inactivated by promoter methylation in colon cancer. Detection of methylated TBX5 may serve as a potential biomarker for the prognosis of this malignancy.
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Affiliation(s)
- J Yu
- Department of Medicine and Therapeutics, Institute of Digestive Disease, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR China.
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Yu J, Ma X, Cheung KF, Li X, Tian L, Wang S, Wu CW, Wu WKK, He M, Wang M, Ng SSM, Sung JJY. Epigenetic inactivation of T-box transcription factor 5, a novel tumor suppressor gene, is associated with colon cancer. Oncogene 2010. [PMID: 20802524 DOI: 10.1038/onc.2010.3708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
T-box transcription factor 5 (TBX5) is a member of a phylogenetically conserved family of genes involved in the regulation of developmental processes. The function of TBX5 in cancer development is largely unclear. We identified that TBX5 was preferentially methylated in cancer using methylation-sensitive arbitrarily primed PCR. We aim to clarify the epigenetic inactivation, biological function and clinical significance of TBX5 in colon cancer. Promoter methylation was evaluated by combined bisulfite restriction analysis and bisulfite genomic sequencing. Cell proliferation was examined by cell viability assay and colony formation assay, apoptosis by flow cytometry and cell migration by wound-healing assay. TBX5 target genes were identified by cDNA microarray analysis. Cox regression model and log-rank test were used to identify independent predictors of prognosis. TBX5 was silenced or downregulated in 88% (7/8) colon cancer cell lines, but was expressed in normal colon tissues. Loss of gene expression was associated with promoter methylation. The biological function of TBX5 in human colon cancer cells was examined. Re-expression of TBX5 in silenced colon cancer cell lines suppressed colony formation (P<0.001), proliferation (P<0.001), migration and induced apoptosis (P<0.01). Induction of apoptosis was mediated through cross-talk of extrinsic apoptosis pathway, apoptotic BCL2-associated X protein and Granzyme A signaling cascades. TBX5 suppressed tumor cell proliferation and metastasis through the upregulation of cyclin-dependent kinase inhibitor 2A, metastasis suppressor 1 and downregulation of synuclein gamma and metastasis-associated protein 1 family member 2. TBX5 methylation was detected in 68% (71/105) of primary colon tumors. Multivariate analysis showed that patients with TBX5 methylation had a significantly poor overall survival (P=0.0007). In conclusion, we identified a novel functional tumor suppressor gene TBX5 inactivated by promoter methylation in colon cancer. Detection of methylated TBX5 may serve as a potential biomarker for the prognosis of this malignancy.
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Affiliation(s)
- J Yu
- Department of Medicine and Therapeutics, Institute of Digestive Disease, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, SAR China.
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Kong XQ, Wu CW. Mosquito proboscis: an elegant biomicroelectromechanical system. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 82:011910. [PMID: 20866651 DOI: 10.1103/physreve.82.011910] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Revised: 05/09/2010] [Indexed: 05/21/2023]
Abstract
The mouthparts of female mosquitoes have evolved to form a special proboscis, a natural biomicroelectromechanical system (BMEMS), which is used for painlessly penetrating human skin and sucking blood. Scanning electron microscope observations show that the mosquito proboscis consists of a small bundle of long, tapering, and feeding stylets that are collectively called the fascicle, and a large scaly outer lower lip called the labium. During blood feeding, only the fascicle penetrates into the skin while the labium buckles back to remain on the surface of the skin. Here, we measured the dynamic force of penetration of the fascicle into human skin to reveal the mechanical principle underlying the painless process of penetration. High-speed video observations of movements associated with insertion of the fascicle indicate that the "smart" mosquito does not directly pierce its victim's skin with the fascicle. Instead, it uses the two maxillas as variable frequency microsaws with nanosharp teeth to advance into the skin tissue. This elegant BMEMS enables the mosquito to insert its feeding fascicle into human skin using an exceedingly small force (average of 16.5 μN).
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Affiliation(s)
- X Q Kong
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024, China
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Blundell TL, Pitts JE, Tickle IJ, Wood SP, Wu CW. X-ray analysis (1. 4-A resolution) of avian pancreatic polypeptide: Small globular protein hormone. Proc Natl Acad Sci U S A 2010; 78:4175-9. [PMID: 16593056 PMCID: PMC319751 DOI: 10.1073/pnas.78.7.4175] [Citation(s) in RCA: 227] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The crystal structure of avian pancreatic polypeptide (aPP), a 36-residue polypeptide with some hormonal properties, has been determined by using single isomorphous replacement and anomalous scattering to 2.1-A resolution. The phases were extended to 1.4-A resolution by using a modified tangent formula. The molecule contains two regions of secondary structure-an extended polyproline-like helix (residues 1-8) and an alpha-helix (residues 14-31)-that run roughly antiparallel. The packing together of nonpolar groups from these regions gives the molecule a hydrophobic core in spite of its small size. The aPP molecules form a symmetrical dimer in the crystal stabilized principally by interlocking of nonpolar groups from the alpha-helices. The aPP dimers are crosslinked by coordination of Zn(2+); three aPP molecules contribute ligands to each zinc. The coordination geometry is a distorted trigonal bipyramid. The properties of the aPP molecule in solution are consistent with expectations based on the crystal structure. The aPP molecule has several general features in common with the pancreatic hormones insulin and glucagon. All three hormones have complex mechanisms for self-association. Like insulin, aPP seems to have a stable monomeric structure but its biological activity seems to depend on the more flexible COOH-terminal region analogous to the flexible NH(2)-terminal region of glucagon.
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Affiliation(s)
- T L Blundell
- Laboratory of Molecular Biology, Department of Crystallography, Birkbeck College, University of London, Malet Street, London WC1E 7HX England
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Chen KT, Lu CS, Chang TH, Lai YY, Chang TH, Wu CW, Chen CC. Comparison of photodegradative efficiencies and mechanisms of Victoria Blue R assisted by Nafion-coated and fluorinated TiO2 photocatalysts. J Hazard Mater 2010; 174:598-609. [PMID: 19815344 DOI: 10.1016/j.jhazmat.2009.09.094] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 08/26/2009] [Accepted: 09/17/2009] [Indexed: 05/28/2023]
Abstract
The purposes of this research were to study the effects of two modified photocatalysts, Nafion-coated TiO(2) and fluorinated TiO(2), and photocatalytic degradation of Victoria Blue R in aqueous solution. Photocatalytic degradation of Victoria Blue R was accelerated by the modified photocatalysts. Bulk and surface characterizations of the resulting powders were carried out. Attachment of the anions to the TiO(2) surface using the Nafion-coated-TiO(2) possibly results in increased adsorption of the cationic dye, and the degradation rate is larger for the cationic dye. It was found that Victoria Blue R on the two illuminated TiO(2) surfaces underwent very different changes. To obtain a better understanding on the mechanistic details of this modified-TiO(2)-assisted photodegradation of the Victoria Blue R dye with UV irradiation, a large number of intermediates of the process were separated, identified, and characterized by a high-performance liquid chromatography-mass spectrometry technique. Several probable photodegradation pathways were proposed and discussed.
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Affiliation(s)
- K T Chen
- Department of General Education, Ming Hsing University of Science and Technology, 304 Taiwan, ROC
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Tsai WC, Hsu CC, Chen HC, Hsu YH, Lin MS, Wu CW, Pang JHS. Ciprofloxacin-mediated inhibition of tenocyte migration and down-regulation of focal adhesion kinase phosphorylation. Eur J Pharmacol 2009; 607:23-6. [DOI: 10.1016/j.ejphar.2009.02.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2008] [Revised: 01/26/2009] [Accepted: 02/09/2009] [Indexed: 01/19/2023]
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Abstract
OBJECTIVE To study the quality of life, health satisfaction and family impact on caregivers of children with developmental delays in Taiwan. DESIGN Cross-sectional study. SUBJECTS The caregivers of children with diagnoses of developmental delays recruited from a teaching hospital in northern Taiwan. METHODS The main caregivers of 48 male and 22 female children with developmental delays were recruited. WHOQOL-BREF for health-related quality of life (HRQOL), PedsQL-Health Satisfaction for health satisfaction, PedsQL-Family Impact Module and Impact on Family Scale for family impact were evaluated. The correlation of caregivers' HRQOL, health satisfaction and family impact were also studied. RESULTS Caregivers in nuclear families had higher health satisfaction scores (78.2 for nuclear families vs. 66.9 for extended families, P < 0.05) when assessed by the PedQL-Health Satisfaction questionnaire. Children's age was negatively correlated with family impact, including parent (-0.272, P = 0.023), family (-0.262, P = 0.029) and total scores (-0.281, P = 0.018) as assessed using the PedsQL-Family Impact Module. CONCLUSION A negative relation between impact of burden and child's age suggests that family members gradually adapt to the delayed developmental status in their children as they grow. Caregivers in nuclear families having higher health satisfaction than those in extended families may be due to Chinese cultural effects.
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Affiliation(s)
- R L Hsieh
- Department of Physical Medicine and Rehabilitation, Shin-Kong Wu Ho-Su Memorial Hospital, and Taipei Medical University, Taipei, Taiwan
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Wu CW, Kong XQ, Wu D. Micronanostructures of the scales on a mosquito's legs and their role in weight support. Phys Rev E Stat Nonlin Soft Matter Phys 2007; 76:017301. [PMID: 17677603 DOI: 10.1103/physreve.76.017301] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Indexed: 05/16/2023]
Abstract
We show here that the mosquito cannot only give rise to a higher water-supporting force than the water strider if the ratio of the water-supporting force to the body weight of the insect itself is compared, but also can safely take off or land on the water surface, and also can attach on any solid surface like the fly. We found that the mosquito's legs are covered by numerous scales consisting of the uniform microscale longitudinal ridges (nanoscale thickness and microscale spacing between) and nanoscale cross ribs (nanoscale thickness and spacing between). Such special delicate microstructure and/or nanostructure on the leg surface give a water contact angle of approximately 153 degrees and give a surprising high water-supporting ability. It was found that the water-supporting force of a single leg of the mosquito is about 23 times the body weight of the mosquito, compared with a water strider's leg giving a water-supporting force of about 15 times the body weight of the insect.
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Affiliation(s)
- C W Wu
- State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Dalian University of Technology, Dalian 116023, China
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Abstract
BACKGROUND The molecular mechanisms underlying the mitogenic effect of ferulic acid (FA), an active compound derived from Angelica sinensis, have never been elucidated. It was the aim of this study to investigate the proliferative effect of FA on human breast cancer cell lines and to elucidate its modulation mechanism on HER2 expression in MCF7 line. MATERIALS AND METHODS By using MCF7 (oestrogen receptor-positive; ER+, HER2-low), BT474 (ER+, HER2-high), MDAMB231 (ER-, HER2-low) and SKBR3 (ER-, HER2-high) human breast cancer cell lines as in vitro models, the mitogenic effects of FA were assessed by trypan blue dye exclusion assay and DNA flow cytometry. Ferulic acid-modulated cell signalling and HER2 gene expression were evaluated in MCF7 line by Western blot and real-time RT-PCR analysis. RESULTS Ferulic acid ER-dependently stimulated cell proliferation on MCF7 cells in a concentration-dependent manner. The HER2 oncogene (one of the prognostic factors of breast cancer) and ESR1 gene (oestrogen receptor-alpha; ERalpha) transcription were markedly up-regulated by FA treatment. Besides, HER2 signalling and its downstream molecules such as AKT and ERK1/2 were involved in FA-modulated ERalpha and cyclin D1 synthesis. Addition of anti-HER2 antibody, trastuzumab, abrogated FA-enhanced proliferative effect on MCF7 cells, indicated a positive feedback control for the action of HER2 in this setting. The fact that the ER antagonist blocked most of the FA-up-regulated HER2 expression, and that trastuzumab down-regulated ERalpha gene expression, suggested a cross-talk between ERalpha and HER2 signalling on MCF7 cells. CONCLUSION The authors' conclude that FA causes human breast cancer cell proliferation by up-regulation of HER2 and ERalpha expression.
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Affiliation(s)
- C J Chang
- Institute of Traditional Medicine, Veterans General Hospital, Taipei, Taiwan
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Wu CW, Hsiung CA, Lo SS, Hsieh MC, Chen JH, Li AF, Lui WY, Whang-Peng J. Stage migration influences on stage-specific survival comparison between D1 and D3 gastric cancer surgeries. Eur J Surg Oncol 2005; 31:153-7. [PMID: 15698731 DOI: 10.1016/j.ejso.2004.09.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2004] [Indexed: 11/19/2022] Open
Abstract
AIMS We evaluate the influency stage migration in a randomised trial comparing D1 (N 1 lymphadenectomy) and D3 (N 1, 2 and 3 lymphadenectomy) dissections. METHODS Two hundred and thirteen curatively resected patients were analysed, with this TNM data. RESULTS After applying D3 patients' data according to simulated D1 staging, D3 resections were associated with up-staging to N2-3 levels in 8% of patients according to the N stage. The likelihood of N-status migration increased with increasing depth of invasion into the gastric wall. The increases in the calculated survival rate after stage migration on known 5-year survival rates were: 2% in stage IB, 1% in stage II, 4% in stage IIIA, and 1% in stage IIIB. CONCLUSIONS Stage migration secondary to meticulous lymph node dissection affects stage-specific survival rates. True therapeutic survival benefit of D3 resection can only be assessed in this context.
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Affiliation(s)
- C W Wu
- Department of Surgery, Taipei Veterans General Hospital, and National Yang-Ming University, ShiPai Road, Taipei 112, Taiwan, ROC.
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Veum TL, Carlson MS, Wu CW, Bollinger DW, Ellersieck MR. Copper proteinate in weanling pig diets for enhancing growth performance and reducing fecal copper excretion compared with copper sulfate. J Anim Sci 2004; 82:1062-70. [PMID: 15080328 DOI: 10.2527/2004.8241062x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Two 28-d experiments were conducted to evaluate the efficacy of low dietary concentrations of Cu as Cu-proteinate compared with 250 ppm Cu as CuSO4 with growth performance, plasma Cu concentrations, and Cu balance of weanling swine as the criteria. In the production study (Exp. 1), 240 crossbred pigs that averaged 19.8 d of age and 6.31 kg BW initially were group-fed (two or three pigs per pen) the basal diets (Phase 1: d 0 to 14 and Phase 2: d 14 to 28) supplemented with 0 (control), 25, 50, 100, or 200 ppm Cu as Cu-proteinate, or 250 ppm Cu as CuSO4 (as-fed basis). The basal diets contained 16.5 ppm Cu supplied as CuSO4 before supplementation with Cu-proteinate or 250 ppm Cu as CuSO4. There were quadratic responses (P < or = 0.05) in ADFI and ADG for wk 1, Phases 1 and 2, and overall because ADFI was higher for pigs fed 25 or 50 ppm Cu as Cu-proteinate, and ADG increased with increasing Cu-proteinate up to 50 ppm Cu. The Cu-proteinate treatment groups combined had a higher (P < or = 0.05) Phase 2 and overall ADFI and ADG than the CuSO4 group. In the mineral balance study (Exp. 2), 20 crossbred barrows that averaged 35 d of age and 11.2 kg/BW initially were placed in individual metabolism pens with total urine and fecal grab sample collections on d 22 to 26. Treatments were the basal Phase 2 diet supplemented with 0, 50, or 100 ppm Cu as Cu-proteinate, or 250 ppm Cu as CuSO4 (as-fed basis). Treatments did not differ in growth performance criteria. There were linear increases (P < 0.001) in Cu absorption, retention, and excretion (milligrams per day) with increasing Cu-proteinate. Pigs fed 100 ppm Cu as Cu-proteinate absorbed and retained more Cu and excreted less Cu (mg/d, P < or = 0.003) than pigs fed 250 ppm Cu as CuSO4. Plasma Cu concentrations increased linearly (P = 0.06) with increasing Cu-proteinate. In conclusion, weanling pig growth performance was increased by 50 or 100 ppm Cu as Cu-proteinate in our production Exp. 1, but not in our balance Exp. 2, compared with 250 ppm Cu as CuSO4. However, 50 or 100 ppm Cu as Cu-proteinate increased Cu absorption and retention, and decreased Cu excretion 77 and 61%, respectively, compared with 250 ppm Cu as CuSO4.
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Affiliation(s)
- T L Veum
- Department of Animal Sciences, University of Missouri, Columbia 65211-5300, USA.
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Abstract
Dysfunction of the renal graft may not only be due to rejection but also other causes such as ischemia and reperfusion injury and calcineurin inhibitor nephrotoxicity. Antioxidant free radical scavengers may decrease oxidative stress and lipid peroxidation. Previous animal studies suggest that vitamins C (ascorbic acid) and E (alpha-tocopherol) are both strong antioxidants, that decrease oxidative stress caused by ischemia-reperfusion injury and calcineurin inhibitor nephrotoxicity. But there have been only limited reports about clinical efficacy. We report five cases supplemented with vitamin C (500 mg per day), vitamin E (500 mg per day), or both. After a 1- to 3-month prescription, the serum creatinine level decreased more than 20% from the original value. Interestingly, one patient had this experience: he ceased vitamin E for 1 month due to noncompliance. The serum creatinine level increased more than 50%. When he took vitamin E again, his serum creatinine level declined and returned to the previous level. From our limited experience, antioxidant supplementation with vitamin C or E may improve renal transplant function, especially in grafts donated from marginal donors.
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Affiliation(s)
- C C Loong
- Division of General Surgery, Taipei Veterans General Hospital, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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Abstract
BACKGROUND A randomized comparison of D1 (level 1 lymphadenectomy) and D3 (levels 1, 2 and 3 lymphadenectomy) dissection was performed to evaluate morbidity and effects on survival from gastric cancer. METHODS A total of 221 patients were studied after resection for gastric cancer, 110 after D1 surgery and 111 after D3 surgery. RESULTS The morbidity rate was higher after D3 than after D1 resection (17.1 (95 per cent confidence interval (c.i.) 10.1 to 24.1) versus 7.3 (95 per cent c.i. 2.4 to 12.2) per cent respectively; P = 0.012). The difference was largely related to abdominal abscess (8.1 per cent after D3 versus none after D1 resection; P = 0.003). The D3 group had an anastomotic leak rate of 4.5 per cent whereas there was no leakage in the D1 group (P = 0.060). All anastomotic leaks were minor and were managed non-operatively with nutritional support. Patients who had D3 resection had longer operating times, greater blood loss and postoperative drain outputs, and more patients needed blood transfusion. There was no death in either group. The hospital stay was longer after D3 than D1 surgery (mean(s.d.) 19.6(13.9) (range 10-98) versus 15.0(4.0) (range 10-30) days; P = 0.001). CONCLUSION Extended lymphadenectomy for gastric cancer is associated with more complications than limited lymphadectomy but this does not lead to significant mortality.
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Affiliation(s)
- C W Wu
- Department of Surgery, Taipei Veterans General Hospital and National Yang-Ming University, Taiwan, Republic of China.
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Lin C, Wang ST, Wu CW, Chuo LJ, Kuo YM. The association of a cystatin C gene polymorphism with late-onset Alzheimer's disease and vascular dementia. CHINESE J PHYSIOL 2003; 46:111-5. [PMID: 14672279] [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: 04/27/2023] Open
Abstract
A polymorphism in the cystatin C (CST3) gene was suggested to associate with Alzheimer's disease (AD). In the present study we attempted to determine the association between CST3 polymorphism and AD or vascular dementia (VD), and whether such effects are dependent of the APOE4 allele. The polymorphisms of CST3 genotype were determined using polymerase chain reactions (PCR) followed by gel electrophoresis in 124 AD, 70 VD, and 115 control individuals. No statistical difference in CST3B allele frequencies was observed among all three groups. Associations between CST3B/B genotype and AD patients older than 75-year-old, or VD patients younger than 75-year-old were evident. The APOE4 allele alone significantly increased the odds for the developing AD, but not VD. A logistic regression analysis revealed that either CST3 or its interaction with APOE4 were not significant predictors of AD. However, a synergistic association of CST3 and APOE4 alleles was observed in predicting VD patients. These results suggest that CST3 might interact with APOE4 on conferring vascular pathologies.
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Affiliation(s)
- C Lin
- Department of Physiology, China Medical College, Taichung, Taiwan
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Affiliation(s)
- C C Loong
- Division of General Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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