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Li CI, Lin CC, Cheng HM, Liu CS, Lin CH, Lin WY, Wang MC, Yang SY, Li TC. Derivation and validation of a clinical prediction model for assessing the risk of lower extremity amputation in patients with type 2 diabetes. Diabetes Res Clin Pract 2020; 165:108231. [PMID: 32446799 DOI: 10.1016/j.diabres.2020.108231] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 03/05/2020] [Accepted: 05/18/2020] [Indexed: 01/29/2023]
Abstract
AIM This study aims to develop and validate a lower extremity amputation (LEA) risk score system in persons with type 2 diabetes. METHODS A retrospective population-based cohort study was conducted among eligible 21,484 participants in the derivation set and 10,742 participants in the validation set who were enrolled in the Taiwan National Diabetes Care Management Program. The risk score system was developed following the steps proposed by the Framingham Heart Study with a Cox proportional hazards model algorithm. Discrimination ability was assessed by the receiver operating characteristic curve, and calibration was performed by Hosmer-Lemeshow test. RESULTS A total of 504 patients developed LEA at an average follow-up of 7.4 years. The point scores were derived from 15 predictors as follows: age, gender, duration of type 2 diabetes, body mass index, HbA1c, triglyceride, eGFR, variation of fasting blood glucose, comorbidities of stroke, diabetes retinopathy, hypoglycemia and foot ulcer, anti-diabetes medication, and use of diuretics and nitrates. The c-statistics for predicting 3-, 5-, and 8-year LEA risks were 0.80 [95% confidence interval (CI) 0.76-0.83], 0.78 (0.75-0.81), and 0.76 (0.74-0.79) in the derivation set, respectively, and 0.81 (0.76-0.85), 0.77 (0.73-0.81), and 0.74 (0.71-0.77) in the validation set, respectively. CONCLUSIONS A new risk score for LEA was developed and validated in the clinical setting with good discriminatory ability. Poor glycemic control, glucose variation, comorbidities, and medication use were identified as predictive factors for LEA in patients with type 2 diabetes.
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Affiliation(s)
- Chia-Ing Li
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Cheng-Chieh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Hui-Man Cheng
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan; Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chiu-Shong Liu
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Medical Research, China Medical University Hospital, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Hsueh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Yuan Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Mu-Cyun Wang
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan; Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shing-Yu Yang
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan
| | - Tsai-Chung Li
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan; Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan.
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Cheng HM, Kuo YZ, Chang CY, Chang CH, Fang WY, Chang CN, Pan SC, Lin JY, Wu LW. The anti-TH17 polarization effect of Indigo naturalis and tryptanthrin by differentially inhibiting cytokine expression. J Ethnopharmacol 2020; 255:112760. [PMID: 32173427 DOI: 10.1016/j.jep.2020.112760] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/23/2020] [Accepted: 03/08/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Chinese herbal medicine Qing-Dai (also known as Indigo naturalis) extracted from indigo-bearing plants including Baphicacanthus cusia (Ness) Bremek was previously reported to exhibit anti-psoriatic effects in topical treatment. TH17 was later established as a key player in the pathogenesis of psoriasis. We investigated the anti-TH17 effect of Indigo naturalis and its active compounds. The aim of this study is to evaluate the toxicity of Indigo naturalis (IN) and its derivatives on five cell types involved in psoriasis, and to study the anti-inflammatory mechanism for the toxicity. MATERIALS AND METHODS Following the fingerprint and quantity analysis of indirubin, indigo, and tryptanthrin in IN extract, we used MTS kits to measure the anti-proliferative effect of IN and three active compounds on five different cell types identified in psoriatic lesions. Quantitative RT-PCR analysis was used to measure the expression of various genes identified in the activated keratinocytes and TH17 polarized gene expression in RORγt-expressing T cells. RESULTS We showed that IN differentially inhibited the proliferation of keratinocytes and endothelial cells but not monocytes, fibroblasts nor Jurkat T cells. Among three active compounds identified in IN, tryptanthrin was the most potent compound to reduce their proliferation. In addition to differentially reducing IL6 and IL8 expression, both IN and tryptanthrin also potently decreased the expression of anti-microbial S100A9 peptide, CCL20 chemokine, IL1B and TNFA cytokines, independent of NF-κB-p65-activation. Their attenuating effect was also detected on the expression of signature cytokines or chemokines induced during RORγT-induced TH17 polarization. CONCLUSIONS We were the first to confirm a direct anti-TH17 effect of both IN herbal extract and tryptanthrin.
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Affiliation(s)
- Hui-Man Cheng
- Department of Integration of Traditional Chinese & Western Medicine, China Medical University Hospital, 2 Yuh-Der Road, Taichung, 40447, Taiwan, ROC; School of Chinese Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan, ROC
| | - Yi-Zih Kuo
- Department of Otolaryngology, College of Medicine, National Cheng Kung University, Tainan, 70428, Taiwan, ROC
| | - Che-Ying Chang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan, 70101, Taiwan, ROC
| | - Chun-Han Chang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan, 70101, Taiwan, ROC
| | - Wei-Yu Fang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan, 70101, Taiwan, ROC
| | - Chen-Ni Chang
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan, 70101, Taiwan, ROC
| | - Shin-Chen Pan
- Department of Surgery, Section of Plastic and Reconstructive Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Sheng-Li Road, Tainan, 70428, Taiwan, ROC
| | - Jin-Yuarn Lin
- Department of Food Science and Biotechnology, National Chung Hsing University, 145 Xingda Road, Taichung, 40227, Taiwan, ROC
| | - Li-Wha Wu
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, 1 University Rd, Tainan, 70101, Taiwan, ROC; Department of Laboratory Science and Technology, Kaohsiung Medical University, Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan, ROC.
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3
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Wang R, Chen XY, Yu SY, Yang F, Chen ZH, Cheng HM, Huang XS. [Electrophysiological features of patients with subacute combined degeneration]. Zhonghua Yi Xue Za Zhi 2020; 100:1023-1027. [PMID: 32294861 DOI: 10.3760/cma.j.cn112137-20190716-01577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the electrophysiological features of patients with subacute combined degeneration (SCD). Methods: The electrophysiological data of 85 hospitalized patients in Department of Neurology, First Medical Centre, Chinese PLA General Hospital from January 2014 to September 2018 were retrospectively analyzed. Results: Abnormality rate of motor nerve conduction (27.4%(93/339)) was lower than that of sensory nerve conduction (45.9%(107/233)) (P<0.001). Abnormality of sensory nerve action potential amplitude was more frequent than conduction velocity abnormality (22.7%(53/233) vs 4.7%(11/233), P=0.001). Abnormality rate of needle electromyogram (EMG) was higher in lower limbs than upper limbs (31.9%(59/185) vs 5.7%(5/87), P<0.001). Spontaneous potentials were unrelated to disease duration or severity. Abnormal somatosensory evoked potential (SEP) results appeared more frequent in lower limbs (80.8%(118/146)) than upper limbs (61.1%(77/126)) (P<0.001). SEP abnormalities (71.7%(195/272)) were more common than nerve conduction abnormalities (35.0%(200/572)). Abnormal findings presented in 15/16 of visual evoked potential (VEP) studies. Neurological severity score were correlated with electrophysiological findings. Conclusions: Posterior funiculus is more likely to be affected than peripheral nerves in SCD patients. The sensory nerves rather than motor nerves, lower limbs rather than upper limbs, axons of sensory nerves rather than myelin, are more severely affected. Electrophysiological tests can provide evidence in early diagnosis, lesions location, and disease severity evaluation for SCD.
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Affiliation(s)
- R Wang
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China (Wang Rong is now working in the Department of Neurology, General Hospital of Taiyuan Iron Steel(Group) Co., Ltd., Taiyuan 030003, China)
| | - X Y Chen
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - S Y Yu
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - F Yang
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Z H Chen
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - H M Cheng
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - X S Huang
- Department of Neurology, First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
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4
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Li CI, Cheng HM, Liu CS, Lin CH, Lin WY, Wang MC, Yang SY, Li TC, Lin CC. Association between glucose variation and lower extremity amputation incidence in individuals with type 2 diabetes: a nationwide retrospective cohort study. Diabetologia 2020; 63:194-205. [PMID: 31686118 DOI: 10.1007/s00125-019-05012-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 08/23/2019] [Indexed: 01/21/2023]
Abstract
AIMS/HYPOTHESIS Elevated glucose level is one of the risk factors for lower extremity amputation (LEA), but whether glycaemic variability confers independent risks of LEA remains to be elucidated. This study aimed to investigate the association between visit-to-visit glycaemic variability and minor and major LEA risks during 8 years of follow-up in type 2 diabetic individuals aged 50 years and older. METHODS This retrospective cohort study included 27,574 ethnic Chinese type 2 diabetic individuals aged ≥50 years from the National Diabetes Care Management Program in Taiwan. Glycaemic variability measures were presented as the CVs of fasting plasma glucose (FPG-CV) and of HbA1c (A1c-CV). The effect of glycaemic variability on the incidence of LEA events was analysed using Cox proportional hazards models. RESULTS After a median follow-up of 8.9 years, 541 incident cases of LEA with a crude incidence density rate of 2.4 per 1000 person-years were observed. After multivariate adjustment, FPG-CV and A1c-CV were found to be significantly associated with minor LEA, with corresponding HRs of 1.53 (95% CI 1.15, 2.04) and 1.34 (95% CI 1.02, 1.77) for the third tertiles of FPG-CV and A1c-CV, respectively. In addition, these associations were stronger amongst older adults with longer diabetes duration (≥3 years) than amongst those with shorter duration (<3 years) (pinteraction < 0.01). CONCLUSIONS/INTERPRETATION Our study suggests that visit-to-visit variations in HbA1c and FPG are important predictors of minor LEA amongst older adults with type 2 diabetes, particularly for those with more than 3 years of diabetes duration.
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Affiliation(s)
- Chia-Ing Li
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
| | - Hui-Man Cheng
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chiu-Shong Liu
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chih-Hsueh Lin
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Yuan Lin
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Mu-Cyun Wang
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shing-Yu Yang
- Department of Public Health, College of Public Health, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
| | - Tsai-Chung Li
- Department of Public Health, College of Public Health, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan.
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan.
| | - Cheng-Chieh Lin
- School of Medicine, College of Medicine, China Medical University, 91 Hsueh-Shih Road, Taichung, 40402, Taiwan.
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan.
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.
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5
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Mogg L, Zhang S, Hao GP, Gopinadhan K, Barry D, Liu BL, Cheng HM, Geim AK, Lozada-Hidalgo M. Perfect proton selectivity in ion transport through two-dimensional crystals. Nat Commun 2019; 10:4243. [PMID: 31534140 PMCID: PMC6751181 DOI: 10.1038/s41467-019-12314-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 05/08/2019] [Accepted: 08/23/2019] [Indexed: 11/28/2022] Open
Abstract
Defect-free monolayers of graphene and hexagonal boron nitride are surprisingly permeable to thermal protons, despite being completely impenetrable to all gases. It remains untested whether small ions can permeate through the two-dimensional crystals. Here we show that mechanically exfoliated graphene and hexagonal boron nitride exhibit perfect Nernst selectivity such that only protons can permeate through, with no detectable flow of counterions. In the experiments, we use suspended monolayers that have few, if any, atomic-scale defects, as shown by gas permeation tests, and place them to separate reservoirs filled with hydrochloric acid solutions. Protons account for all the electrical current and chloride ions are blocked. This result corroborates the previous conclusion that thermal protons can pierce defect-free two-dimensional crystals. Besides the importance for theoretical developments, our results are also of interest for research on various separation technologies based on two-dimensional materials. Defect-free monolayers of graphene and hexagonal boron nitride are highly permeable to thermal protons, but are impenetrable to gases. Here the authors show that mechanically exfoliated crystals exhibit perfect proton selectivity, corroborating proton transport through the bulk without atomic-scale defects.
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Affiliation(s)
- L Mogg
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - S Zhang
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK. .,Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China.
| | - G-P Hao
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.,State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - K Gopinadhan
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.,Department of Physics, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, 382355, India
| | - D Barry
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - B L Liu
- Shenzhen Graphene Center Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, China
| | - H M Cheng
- Shenzhen Graphene Center Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, 1001 Xueyuan Road, Shenzhen, 518055, China
| | - A K Geim
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK. .,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
| | - M Lozada-Hidalgo
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK. .,Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
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6
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Lo HY, Li CC, Cheng HM, Liu IC, Ho TY, Hsiang CY. Ferulic acid altered IL-17A/IL-17RA interaction and protected against imiquimod-induced psoriasis-like skin injury in mice. Food Chem Toxicol 2019; 129:365-375. [PMID: 31054998 DOI: 10.1016/j.fct.2019.04.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/15/2019] [Accepted: 04/30/2019] [Indexed: 02/08/2023]
Abstract
Ferulic acid (FA), a phenolic phytochemical, is commonly found in grains, vegetables, and fruits. Interleukin-17A (IL-17A) and IL-17 receptor A (IL-17RA) interaction is one of important therapeutic targets for psoriasis. Here we analyzed the FA effects on IL-17A/IL-17RA interaction and psoriasis-like skin injury induced by imiquimod (IMQ). IL-17A-blocking assay and docking analysis showed that FA interacted with Trp-67, Gln-94, and Glu-95 residues of IL-17A via hydrogen bonds and consequently abolished the binding of IL-17RA to IL-17A. Mice were topically given with IMQ and orally given with various amounts of FA for 14 consecutive days. FA attenuated IMQ-induced psoriasis-like skin lesions in a dose-dependent manner, and the epidermal thickness of mice treated with 100 mg/kg FA was reduced by 53.48 ± 4.44% in comparison with sham. Global analysis of differentially expressed genes showed that IMQ and FA significantly affected immune response, metabolism, and mitogen-activated protein kinase signaling pathways. Immunohistochemical staining showed that FA inhibited the infiltration and the cytokine secretion of Th17 cell, dendritic cell, and granulocyte subsets in psoriatic skin tissues. In conclusion, we newly identified that oral administration of FA protected against IMQ-induced psoriatic skin injury in mice. Moreover, its protection was associated with the interference of IL-17A/IL-17RA interaction.
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Affiliation(s)
- Hsin-Yi Lo
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Chia-Cheng Li
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Hui-Man Cheng
- School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan; Department of Chinese Medicine, China Medical University Hospital, Taichung, 40447, Taiwan
| | - I-Chen Liu
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Tin-Yun Ho
- Graduate Institute of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan; Department of Health and Nutrition Biotechnology, Asia University, Taichung, 41354, Taiwan.
| | - Chien-Yun Hsiang
- Department of Microbiology and Immunology, China Medical University, Taichung, 40402, Taiwan.
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7
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Au AKY, Cheng HM, Cho KY, Tam CW, Khoo JLS, Ng JHY, Hau VTW. Rosai-Dorfman disease presenting as a solitary soft-tissue mass in the thigh: a case report. Hong Kong Med J 2019; 25:149-151. [PMID: 30971504 DOI: 10.12809/hkmj164921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- A K Y Au
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - H M Cheng
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - K Y Cho
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - C W Tam
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - J L S Khoo
- Department of Radiology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - J H Y Ng
- Department of Clinical Pathology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
| | - V T W Hau
- Department of Orthopaedics and Traumatology, Pamela Youde Nethersole Eastern Hospital, Chai Wan, Hong Kong
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Lu DY, Wang WT, Huang WM, Sung SH, Cheng HM, Chen CH, Yu WC. P1255Disease stage-dependent changes of cardiac contractile performance in patients with fabry cardiomyopathf. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Y Lu
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - W T Wang
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - W M Huang
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - S H Sung
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - H M Cheng
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - C H Chen
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
| | - W C Yu
- Taipei Veterans General Hospital, Division of Cardiology, Taipei, Taiwan ROC
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9
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Yang YL, Sung SH, Cheng HM. P3646Controlling nutritional status (CONUT) score predicted poor outcome better then prognostic nutritional index(PNI) in patients with acute myocardial infraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y.-L Yang
- Taipei Veterans General Hospital, Cardiology, Taipei, Taiwan ROC
| | - S H Sung
- Taipei Veterans General Hospital, Cardiology, Taipei, Taiwan ROC
| | - H M Cheng
- Taipei Veterans General Hospital, Cardiology, Taipei, Taiwan ROC
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10
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Chen CS, Cheng HM, Chen HJ, Tsai SY, Kao CH, Lin HJ, Wan L, Yang TY. Dry eye syndrome and the subsequent risk of chronic fatigue syndrome-a prospective population-based study in Taiwan. Oncotarget 2018; 9:30694-30703. [PMID: 30093979 PMCID: PMC6078132 DOI: 10.18632/oncotarget.25544] [Citation(s) in RCA: 9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 05/19/2018] [Indexed: 12/13/2022] Open
Abstract
Background and Aim The clinical association between dry eye syndrome (DES) and chronic fatigue syndrome (CFS) remain unclear with less evidences. We aimed to investigate the relationship between CFS and DES using a national insurance and prospective cohort study. Methods Data from the Longitudinal Health Insurance Database 2000 was applied to estimate the incidence of CFS among patients with DES, and their age- and sex-matched controls without DES over a long-term follow-up period. All participants were CFS free at baseline, before the interval (2005-2007), but were later diagnosed with CFS. DES patients and its relative matched controls were excluded prevalent CFS before the same interval. Results We identified 884 patients with DES and 3,536 matched controls in baseline and estimated the hazard ratios for incident CFS in the follow-up period. Patients with DES had a 2.08-fold considerably increasing risk of developing CFS, compared to non-DES group. An elevated risk of developing CFS remained (1.61-fold risk) even after adjusting for age, sex, and comorbidities. There was a presence of increasing risk in DES-related CFS when CFS-related comorbidities existing (adjusted hazard ratio, 1.98, 95% confidence interval, 1.19-3.29; p < 0.01). The subsequent risk for CFS between DES and non-DES patients was significant increased with three or more annual medical visits, the adjusted risk for CFS was 4.88-fold risk (95% CI, 2.26-10.58, p < 0.001). Conclusion We recommended that physicians should be aware of the increased risk of CFS among DES patients and adequately assess the health impacts among these patients.
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Affiliation(s)
- Chih-Sheng Chen
- Department of Chinese Traumatology, Division of Chinese Traumatology Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Traditional Chinese Medicine, Asia University Hospital, Taichung, Taiwan.,Graduate Institute of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hui-Man Cheng
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hsuan-Ju Chen
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan.,Department of Public Health, China Medical University, Taichung, Taiwan.,Asia University, Taichung, Taiwan
| | - Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Mackay Medical College, New Taipei City, Taiwan.,Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland, USA
| | - Chia-Hung Kao
- Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.,Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung, Taiwan.,Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Hui-Ju Lin
- School of Chinese Medicine, China Medical University, Taichung, Taiwan.,Department of Ophthalmology, China Medical University Hospital, Taichung, Taiwan
| | - Lei Wan
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.,Department of Biotechnology, Asia University, Taichung, Taiwan.,Department of Obstetrics and Gynecology, China Medical University Hospital, Taichung, Taiwan.,Research Center for Chinese Medicine and Acupuncture, China Medical University, Taichung, Taiwan
| | - Tse-Yen Yang
- Molecular and Genomic Epidemiology Center, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, Taiwan
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Cheng HM, Chen FY, Li CC, Lo HY, Liao YF, Ho TY, Hsiang CY. Oral Administration of Vanillin Improves Imiquimod-Induced Psoriatic Skin Inflammation in Mice. J Agric Food Chem 2017; 65:10233-10242. [PMID: 29073354 DOI: 10.1021/acs.jafc.7b04259] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Vanillin is one of the most widely used flavoring products worldwide. Psoriasis is a chronic inflammatory skin disorder. The interleukin-23 (IL-23)/interleukin-17 (IL-17) axis plays a critical role in psoriasis. Here, we analyzed the effect of vanillin on imiquimod (IMQ)-induced psoriatic skin inflammation in mice. Mice were treated topically with IMQ on the back skin and orally with various amounts of vanillin for 7 consecutive days. Vanillin significantly improved IMQ-induced histopathological changes of skin in a dose-dependent manner. The thickness and number of cell layers of epidermis were reduced by 29 ± 14.4 and 27.8 ± 11%, respectively, in mice given 100 mg/kg of vanillin. A microarray showed that a total of 9042 IMQ-upregulated genes were downregulated by vanillin, and the biological pathways involved in the immune system and metabolism were significantly altered by vanillin. The upregulated expressions of IL-23, IL-17A, and IL-17F genes were suppressed by vanillin, with fold changes of -3.07 ± 0.08, -2.06 ± 0.21, and -1.62 ± 0.21, respectively. Moreover, vanillin significantly decreased both the amounts of IL-17A and IL-23 and the infiltration of immune cells in the skin tissues of IMQ-treated mice. In conclusion, our findings suggested that vanillin was an effective bioactive compound against psoriatic skin inflammation. Moreover, the downregulation of IL-23 and IL-17 expression suggested that vanillin was a novel regulator of the IL-23/IL-17 axis.
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Affiliation(s)
- Hui-Man Cheng
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital , Taichung 40447, Taiwan
| | | | | | | | | | - Tin-Yun Ho
- Department of Health and Nutrition Biotechnology, Asia University , Taichung 41354, Taiwan
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12
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Cheng HM, Wu YC, Wang Q, Song M, Wu J, Chen D, Li K, Wadman E, Kao ST, Li TC, Leon F, Hayden K, Brodmerkel C, Chris Huang C. Clinical efficacy and IL-17 targeting mechanism of Indigo naturalis as a topical agent in moderate psoriasis. Altern Ther Health Med 2017; 17:439. [PMID: 28865459 PMCID: PMC5581407 DOI: 10.1186/s12906-017-1947-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 08/23/2017] [Indexed: 12/16/2022]
Abstract
Background Indigo naturalis is a Traditional Chinese Medicine (TCM) ingredient long-recognized as a therapy for several inflammatory conditions, including psoriasis. However, its mechanism is unknown due to lack of knowledge about the responsible chemical entity. We took a different approach to this challenge by investigating the molecular profile of Indigo naturalis treatment and impacted pathways. Methods A randomized, double-blind, placebo-controlled clinical study was conducted using Indigo naturalis as topical monotherapy to treat moderate plaque psoriasis in a Chinese cohort (n = 24). Patients were treated with Indigo naturalis ointment (n = 16) or matched placebo (n = 8) twice daily for 8 weeks, with 1 week of follow-up. Results At week 8, significant improvements in Psoriasis Area and Severity Index (PASI) scores from baseline were observed in Indigo naturalis-treated patients (56.3% had 75% improvement [PASI 75] response) compared with placebo (0.0%). A gene expression signature of moderate psoriasis was established from baseline skin biopsies, which included the up-regulation of the interleukin (IL)-17 pathway as a key component; Indigo naturalis treatment resulted in most of these signature genes returning toward normal, including down-regulation of the IL-17 pathway. Using an in vitro keratinocyte assay, an IL-17-inhibitory effect was observed for tryptanthrin, a component of Indigo naturalis. Conclusions This study demonstrated the clinical efficacy of Indigo naturalis in moderate psoriasis, and exemplified a novel experimental medicine approach to understand TCM targeting mechanisms. Trial registration NCT01901705. Electronic supplementary material The online version of this article (10.1186/s12906-017-1947-1) contains supplementary material, which is available to authorized users.
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Chang HW, Cheng HM, Yen HR, Hsu CY, Lee YC, Chiang JH, Sun MF. Association between chronic idiopathic urticaria and hypertension: A population-based retrospective cohort study. Ann Allergy Asthma Immunol 2017; 116:554-8. [PMID: 27264565 DOI: 10.1016/j.anai.2016.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 03/28/2016] [Accepted: 04/05/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND Chronic idiopathic urticaria (CIU) is defined as urticaria that is not caused by external triggers. The pathogenesis of CIU remains unknown. A previous study investigated whether hypertension is associated with extended duration of CIU. OBJECTIVE To investigate the possible association between CIU and hypertension. METHODS We performed a population-based retrospective cohort study of 2,460 patients with CIU and 9,840 age-, sex-, and index year-matched comparison patients, using the National Health Insurance of Taiwan database. The median follow-up periods were 7.13 years for the CIU cohort and 7.20 years for the non-CIU cohort. The distributions by sex and age were similar for both cohorts. RESULTS The CIU cohort had a 1.37-fold (95% CI, 1.22-1.53) greater risk of developing subsequent hypertension than the non-CIU cohort after adjusting for sex, age, comorbidities, and nonsedating antihistamine use. CONCLUSION This nationwide retrospective cohort study found that CIU is associated with a higher future risk of hypertension after adjusting for sex, age, comorbidities, and nonsedating antihistamine use. The detailed pathophysiologic mechanisms require further clarification in prospective studies.
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Affiliation(s)
- Heng-Wei Chang
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hui-Man Cheng
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, Taiwan; School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Hung-Rong Yen
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan; School of Chinese Medicine, China Medical University, Taichung, Taiwan; Research Center for Chinese Medicine and Acupuncture, China Medical University, Taichung, Taiwan
| | - Chung Y Hsu
- Department of Neurology, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Yu-Chen Lee
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Jen-Huai Chiang
- Research Center for Chinese Medicine and Acupuncture, China Medical University, Taichung, Taiwan; Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
| | - Mao-Feng Sun
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Chinese Medicine, China Medical University, Taichung, Taiwan.
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Maher NG, Blumetti TP, Gomes EE, Cheng HM, Satgunaseelan L, Lo S, Rezze GG, Scolyer RA, Guitera P. Melanoma diagnosis may be a pitfall for optical coherence tomography assessment of equivocal amelanotic or hypomelanotic skin lesions. Br J Dermatol 2017; 177:574-577. [DOI: 10.1111/bjd.15187] [Citation(s) in RCA: 6] [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: 01/11/2023]
Affiliation(s)
- N G Maher
- Melanoma Institute Australia, Sydney, Australia.,The University of Sydney, Sydney, Australia
| | - T P Blumetti
- AC Camargo Cancer Center, Cutaneous Oncology Department, São Paulo, Brazil
| | - E E Gomes
- AC Camargo Cancer Center, Cutaneous Oncology Department, São Paulo, Brazil
| | - H M Cheng
- Melanoma Institute Australia, Sydney, Australia.,The University of Sydney, Sydney, Australia
| | - L Satgunaseelan
- Melanoma Institute Australia, Sydney, Australia.,Tissue Pathology and Diagnostic Oncology, Sydney, Australia
| | - S Lo
- Melanoma Institute Australia, Sydney, Australia.,The University of Sydney, Sydney, Australia
| | - G G Rezze
- AC Camargo Cancer Center, Cutaneous Oncology Department, São Paulo, Brazil
| | - R A Scolyer
- Melanoma Institute Australia, Sydney, Australia.,The University of Sydney, Sydney, Australia.,Tissue Pathology and Diagnostic Oncology, Sydney, Australia
| | - P Guitera
- Melanoma Institute Australia, Sydney, Australia.,The University of Sydney, Sydney, Australia.,Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital, Sydney, Australia
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15
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Du JH, Jin H, Zhang ZK, Zhang DD, Jia S, Ma LP, Ren WC, Cheng HM, Burn PL. Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoO x as an interfacial layer. Nanoscale 2017; 9:251-257. [PMID: 27906401 DOI: 10.1039/c6nr06942h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The large surface roughness, low work function and high cost of transparent electrodes using multilayer graphene films can limit their application in organic photovoltaic (OPV) cells. Here, we develop single layer graphene (SLG) films as transparent anodes for OPV cells that contain light-absorbing layers comprised of the evaporable molecular organic semiconductor materials, zinc phthalocyanine (ZnPc)/fullerene (C60), as well as a molybdenum oxide (MoOx) interfacial layer. In addition to an increase in the optical transmittance, the SLG anodes had a significant decrease in surface roughness compared to two and four layer graphene (TLG and FLG) anodes fabricated by multiple transfer and stacking of SLGs. Importantly, the introduction of a MoOx interfacial layer not only reduced the energy barrier between the graphene anode and the active layer, but also decreased the resistance of the SLG by nearly ten times. The OPV cells with the structure of polyethylene terephthalate/SLG/MoOx/CuI/ZnPc/C60/bathocuproine/Al were flexible, and had a power conversion efficiency of up to 0.84%, which was only 17.6% lower than the devices with an equivalent structure but prepared on commercial indium tin oxide anodes. Furthermore, the devices with the SLG anode were 50% and 86.7% higher in efficiency than the cells with the TLG and FLG anodes. These results show the potential of SLG electrodes for flexible and wearable OPV cells as well as other organic optoelectronic devices.
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Affiliation(s)
- J H Du
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
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16
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Cheng HM, Lo S, Scolyer R, Meekings A, Carlos G, Guitera P. Accuracy of optical coherence tomography for the diagnosis of superficial basal cell carcinoma: a prospective, consecutive, cohort study of 168 cases. Br J Dermatol 2016; 175:1290-1300. [PMID: 27146027 DOI: 10.1111/bjd.14714] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Superficial basal cell carcinoma (sBCC) can be safely treated topically. Potentially noninvasive imaging techniques, such as optical coherence tomography (OCT), may be useful to diagnose and manage patients with sBCC and obviate the need for biopsy. OBJECTIVES To evaluate in OCT (i) the sensitivity and specificity for sBCC diagnosis, (ii) the accuracy in determining BCC depth and (iii) the role in management of sBCC mimickers. METHODS A prospective, consecutive cohort of lesions for which sBCC was considered in the differential diagnosis. These lesions underwent clinical, dermoscopic and OCT assessment. Diagnosis and its confidence were recorded for each modality and were correlated with the histopathological diagnosis (punch biopsy). Interpretation of the OCT images and assessment of individual features were performed blinded to the biopsy results. RESULTS In total, 168 lesions were recruited: 52% were sBCC, 26% were other BCC variants and the remaining lesions were actinic keratosis, squamous cell carcinoma in situ, other benign inflammatory processes and two other malignant tumours. The sensitivity and specificity of OCT for diagnosis of sBCC were 0·87 and 0·80, respectively. There was excellent correlation between OCT and biopsy for tumour depth amongst tumours ≤ 0·4 mm (Pearson correlation r = 0·86, P < 0·001), but the correlation was less as depth increased (Pearson correlation r = 0·71, P < 0·001 for all tumours < 1·0 mm). CONCLUSIONS OCT has good diagnostic accuracy for diagnosing sBCC and measuring depth in tumours ≤ 0·4 mm. Potentially OCT can reduce the need for biopsy in clinically suspected sBCCs. However, careful follow-up is required in such cases as there is a small risk (5%) of misdiagnosis.
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Affiliation(s)
- H M Cheng
- Melanoma Institute Australia, North Sydney, NSW, Australia.,University of Sydney, Sydney Medical School, Sydney, NSW, Australia
| | - S Lo
- Melanoma Institute Australia, North Sydney, NSW, Australia.,University of Sydney, Sydney Medical School, Sydney, NSW, Australia
| | - R Scolyer
- Melanoma Institute Australia, North Sydney, NSW, Australia.,University of Sydney, Sydney Medical School, Sydney, NSW, Australia.,Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - A Meekings
- Guy's and St Thomas' NHS Foundation Trust, Department of Medical Physics, London, U.K
| | - G Carlos
- Melanoma Institute Australia, North Sydney, NSW, Australia.,University of Sydney, Sydney Medical School, Sydney, NSW, Australia
| | - P Guitera
- Melanoma Institute Australia, North Sydney, NSW, Australia.,University of Sydney, Sydney Medical School, Sydney, NSW, Australia.,Sydney Melanoma Diagnostic Centre, Royal Prince Alfred Hospital, Sydney, NSW, Australia
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17
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Jia S, Sun HD, Du JH, Zhang ZK, Zhang DD, Ma LP, Chen JS, Ma DG, Cheng HM, Ren WC. Graphene oxide/graphene vertical heterostructure electrodes for highly efficient and flexible organic light emitting diodes. Nanoscale 2016; 8:10714-10723. [PMID: 27153523 DOI: 10.1039/c6nr01649a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The relatively high sheet resistance, low work function and poor compatibility with hole injection layers (HILs) seriously limit the applications of graphene as transparent conductive electrodes (TCEs) for organic light emitting diodes (OLEDs). Here, a graphene oxide/graphene (GO/G) vertical heterostructure is developed as TCEs for high-performance OLEDs, by directly oxidizing the top layer of three-layer graphene films with ozone treatment. Such GO/G heterostructure electrodes show greatly improved optical transmittance, a large work function, high stability, and good compatibility with HIL materials (MoO3 in this work). Moreover, the conductivity of the heterostructure is not sacrificed compared to the pristine three-layer graphene electrodes, but is significantly higher than that of pristine two-layer graphene films. In addition to high flexibility, OLEDs with different emission colors based on the GO/G heterostructure TCEs show much better performance than those based on indium tin oxide (ITO) anodes. Green OLEDs with GO/G heterostructure electrodes have the maximum current efficiency and power efficiency, as high as 82.0 cd A(-1) and 98.2 lm W(-1), respectively, which are 36.7% (14.8%) and 59.2% (15.0%) higher than those with pristine graphene (ITO) anodes. These findings open up the possibility of using graphene for next generation high-performance flexible and wearable optoelectronics with high stability.
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Affiliation(s)
- S Jia
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - H D Sun
- State Key Laboratory of Polymers Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
| | - J H Du
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - Z K Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - D D Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - L P Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - J S Chen
- State Key Laboratory of Polymers Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
| | - D G Ma
- State Key Laboratory of Polymers Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China.
| | - H M Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
| | - W C Ren
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, P. R. China.
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Abstract
Optical coherence tomography (OCT) is a noninvasive imaging tool used in vivo in real time for diagnosis, treatment delineation and monitoring of basal cell carcinoma (BCC). Features of BCC on OCT have been widely described and reviewed. However, the diagnostic accuracy of OCT in these various applications is unclear. We systematically reviewed the literature to assess the accuracy of OCT in diagnosis and management of BCC using the Embase and Medline databases. In total 179 unique references were identified in the initial search, of which 22 studies with 556 histologically proven BCCs were eligible. Assessment of the quality of eligible studies was undertaken using the STROBE criteria. Data extraction and quality assessment were performed independently by the two authors. This systematic review provides an overview of the clinical applications of OCT in the diagnosis and management of BCC. OCT has been suggested to be useful in the diagnosis, treatment planning and treatment monitoring of BCC. As the technology improves and its utility increases, further studies with good methodological quality will be needed to implement OCT into daily practice.
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Affiliation(s)
- H M Cheng
- Melanoma Institute Australia, 40 Rocklands Rd, North Sydney, NSW, 2060, Australia
| | - P Guitera
- Department of Dermatology, University of Sydney, Sydney New South Wales, Australia
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19
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Hsiang CY, Cheng HM, Lo HY, Li CC, Chou PC, Lee YC, Ho TY. Ginger and Zingerone Ameliorate Lipopolysaccharide-Induced Acute Systemic Inflammation in Mice, Assessed by Nuclear Factor-κB Bioluminescent Imaging. J Agric Food Chem 2015; 63:6051-8. [PMID: 26073629 DOI: 10.1021/acs.jafc.5b01801] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Ginger is a commonly used spice in cooking. In this study, we comprehensively evaluated the anti-inflammatory activities of ginger and its component zingerone in lipopolysaccharide (LPS)-induced acute systemic inflammation in mice via nuclear factor-κB (NF-κB) bioluminescent imaging. Ginger and zingerone significantly suppressed LPS-induced NF-κB activities in cells in a dose-dependent manner, and the maximal inhibition (84.5% ± 3.5% and 96.2% ± 0.6%) was observed at 100 μg/mL ginger and zingerone, respectively. Moreover, dietary ginger and zingerone significantly reduced LPS-induced proinflammatory cytokine production in sera by 62.9% ± 18.2% and 81.3% ± 6.2%, respectively, and NF-κB bioluminescent signals in whole body by 26.9% ± 14.3% and 38.5% ± 6.2%, respectively. In addition, ginger and zingerone suppressed LPS-induced NF-κB-driven luminescent intensities in most organs, and the maximal inhibition by ginger and zingerone was observed in small intestine. Immunohistochemical staining further showed that ginger and zingerone decreased interleukin-1β (IL-1β)-, CD11b-, and p65-positive areas in jejunum. In conclusion, our findings suggested that ginger and zingerone were likely to be broad-spectrum anti-inflammatory agents in most organs that suppressed the activation of NF-κB, the production of IL-1β, and the infiltration of inflammatory cells in mice.
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Affiliation(s)
- Chien-Yun Hsiang
- †Department of Microbiology, China Medical University, Taichung 40402, Taiwan
| | - Hui-Man Cheng
- ‡School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - Hsin-Yi Lo
- §Graduate Institute of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - Chia-Cheng Li
- ∥Graduate Institute of Cancer Biology, China Medical University, Taichung 40402, Taiwan
| | - Pei-Chi Chou
- ‡School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - Yu-Chen Lee
- ⊥Graduate Institute of Acupuncture Science, China Medical University, Taichung 40402, Taiwan
| | - Tin-Yun Ho
- §Graduate Institute of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
- ∇Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan
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Cheng HM, Chiang LC, Jan YM, Chen GW, Li TC. The Efficacy and Safety of a Chinese Herbal Product (Xiao-Feng-San) for the Treatment of Refractory Atopic Dermatitis: A Randomized, Double-Blind, Placebo-Controlled Trial. Int Arch Allergy Immunol 2011; 155:141-8. [DOI: 10.1159/000318861] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 06/28/2010] [Indexed: 11/19/2022] Open
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Cheng HM, Li CC, Chen CYC, Lo HY, Cheng WY, Lee CH, Yang SZ, Wu SL, Hsiang CY, Ho TY. Application of bioactivity database of Chinese herbal medicine on the therapeutic prediction, drug development, and safety evaluation. J Ethnopharmacol 2010; 132:429-437. [PMID: 20713146 DOI: 10.1016/j.jep.2010.08.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 07/09/2010] [Accepted: 08/09/2010] [Indexed: 05/29/2023]
Abstract
AIM OF THE STUDY Chinese herbal medicine has been used for the treatments of various diseases for years. However, it is often difficult to analyze their biological activities and molecule mechanisms because of their complex nature. In this study, we applied DNA microarray to analyze the biological events induced by herbal formulae, predict the therapeutic potentials of formulae, and evaluate the safety of formulae. MATERIALS AND METHODS Mice were administrated orally with 15 formulae for 7 consecutive days, and the gene expression profiles in liver or kidney were further analyzed by transcriptomic tools. RESULTS Our data showed that most formulae altered the metabolic pathways, such as glutathione metabolism and oxidative phosphorylation, and regulatory pathways, such as antigen processing and presentation and insulin-like growth factor signaling pathway. By comparing the gene expression signatures of formulae with those of disease states or drugs, we found that mice responsive to formula treatments might be related to disease states, especially metabolic and cardiovascular diseases, and drugs, which exhibit anti-cancer, anti-inflammatory, and anti-oxidative effects. Moreover, most formulae altered the expression levels of cytochrome p450, glutathione S-transferase, and UDP glycosyltransferase genes, suggesting that caution should be paid to possible drug interaction of these formulae. Furthermore, the similarities of gene expression profiles between formulae and toxic chemicals were low in kidney, suggesting that these formulae might not induce nephrotoxicities in mice. CONCLUSIONS This report applied transcriptomic tools as a novel platform of translational medicine for Chinese herbal medicine. This platform will not only for understanding the therapeutic mechanisms involving herbal formulae and gene interactions, but also for the new theories in drug discovery.
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Affiliation(s)
- Hui-Man Cheng
- Graduate Institute of Integration of Traditional Chinese and Western Medicine, China Medical University, Taichung 40402, Taiwan
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Tang YB, Chen ZH, Song HS, Lee CS, Cong HT, Cheng HM, Zhang WJ, Bello I, Lee ST. Vertically aligned p-type single-crystalline GaN nanorod arrays on n-type Si for heterojunction photovoltaic cells. Nano Lett 2008; 8:4191-4195. [PMID: 19367961 DOI: 10.1021/nl801728d] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Vertically aligned Mg-doped GaN nanorods have been epitaxially grown on n-type Si substrate to form a heterostructure for fabricating p-n heterojunction photovoltaic cells. The p-type GaN nanorod/n-Si heterojunction cell shows a well-defined rectifying behavior with a rectification ratio larger than 10(4) in dark. The cell has a high short-circuit photocurrent density of 7.6 mAlcm2 and energy conversion efficiency of 2.73% under AM 1.5G illumination at 100 mW/cm2. Moreover, the nanorod array may be used as an antireflection coating for solar cell applications to effectively reduce light loss due to reflection. This study provides an experimental demonstration for integrating one-dimensional nanostructure arrays with the substrate to directly fabricate heterojunction photovoltaic cells.
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Affiliation(s)
- Y B Tang
- Center of Super-Diamond and Advanced Films and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, People's Republic of China
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23
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Cheng HM, Hsiang CY, Chen GW, Wu SL, Chen JC, Huang CY, Bau DT, Ho TY. Inhibition of lipopolysaccharide-induced interleukin-1beta and tumor necrosis factor-alpha production by menthone through nuclear factor-kappaB signaling pathway in HaCat cells. CHINESE J PHYSIOL 2008; 51:160-166. [PMID: 18935911] [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: 05/26/2023] Open
Abstract
Menthone, the Chinese old remedy extracted from genus Mentha, has been widely used as a cooling agent, a counterirritant for pain relief, and for the treatment of pruritus. However, its detail mechanisms for interfering inflammatory reaction remain unknown. In this study, we found that menthone can suppress the lipopolysaccharide (LPS)-induced proinflammatory cytokines, interleukin-1beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha), as well as nuclear factor kappaB (NF-kappaB) activity induced by LPS and other inflammatory agents, including 12-O-tetradecanoylphorbol-13-acetate, hydrogen peroxide, okadaic acid, and ceramide. Furthermore, our data also demonstrated that the translocation of NF-kappaB activated by LPS into the nucleus was suppressed by menthone, and I-kappaB and beta-transducin repeat containing protein (beta-TrCP) were both involved in this suppression. To sum up, this study has provided molecular evidence for menthone effect on the LPS-induced cytokine production, NF-kappaB activation, and the involvement of I-kappaB and beta-TrCP.
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Affiliation(s)
- Hui-Man Cheng
- Institute for Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taiwan, R.O.C
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Abstract
Natural autoantibodies are normal components of the humoral arm of the immune system found in clinically healthy individuals. There are two subpopulations of natural antibodies, including an overt group of antibodies that are readily detected in unfractionated normal human sera. The other natural antibody subgroup is revealed by physico or biochemical treatment of normal human sera in vitro. Unmasking of this latter cryptic natural autoantibodies (cNA) may occur in vivo by local factors in the tissue environment of disease states. The masking cryptic factors may be immunoglobulin (Ig) or non-Ig in nature. These factors may either be co-inhibitors or co-enhancers of cNA. In the heat-potentiated binding of natural anti-phospholipid antibodies, apolipoprotein H (beta 2-glycoprotein I) appears to act as a co-enhancer. The immuno-relationship between the in vitro and in vivo cNA phenomenon remains to be elucidated.
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Affiliation(s)
- H M Cheng
- Department of Physiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Tzeng CT, Tsuei KD, Cheng HM, Chu RY. Covalent bonding and hole-electron Coulomb interaction U in C(60) on Be(0001) surfaces. J Phys Condens Matter 2007; 19:176009. [PMID: 21690946 DOI: 10.1088/0953-8984/19/17/176009] [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] [Indexed: 05/30/2023]
Abstract
We have investigated the bonding nature and hole-electron Coulomb interaction U in thin C(60) films on Be(0001) surfaces using valence-band and core-level photoemission, inverse photoemission, and near-edge x-ray absorption spectroscopies. The C(60) monolayer had strong covalent bonding with the Be substrate, producing a nearly insulating film, in contrast to a metallic overlayer due to charge transfer observed on many other metallic surfaces. The effect of polarization of surrounding molecules and the image potential decreases the energy gap and U, but the bonding-antibonding contribution increases the gap at the interface. The measured U in thin solid films agrees well with a model calculation using gas-phase values. The deduced hole-electron attraction on the surface is about 0.7 eV larger than the reported hole-hole repulsion determined by Auger spectroscopy. On the basis of the surface-solid difference, the newly estimated value of U for hole-hole correlation places doped C(60) compounds nearer the metallic side of a Mott transition.
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Affiliation(s)
- C T Tzeng
- National Synchrotron Radiation Research Centre, Hsinchu 30076, Taiwan, Republic of China. Department of Electronic Engineering, Lan-Yang Institute of Technology, I-Lan 261, Taiwan, Republic of China
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26
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Abstract
BACKGROUND Familial hypercholesterolaemia (FH) is characterized by very high serum cholesterol and premature coronary atherosclerosis. Arterial stiffness and atherosclerosis are two major underlying pathophysiologies of arterial disease that are predictive of future cardiovascular events. The aims of this study were to quantify atherosclerosis and arterial stiffness and to evaluate their relationship with high sensitive C-reactive protein (hs-CRP) and the level of exposure to high serum cholesterol in FH patients. MATERIALS AND METHODS We measured traditional risk factors, hs-CRP, intima-media thickness (IMT) of carotid artery, and brachial-ankle pulse wave velocity (baPWV) in 35 heterozygous FH subjects and 17 healthy control subjects. Cholesterol-year score (CYS) was calculated to estimate the lifetime cholesterol burden in FH subjects. RESULTS FH subjects had significantly elevated total cholesterol, low-density lipoprotein cholesterol, and carotid IMT compared with those without mutations. Among FH patients, the baPWV and carotid IMT were higher in cases with high cholesterol burden than those without. Similarly, the baPWV and carotid IMT were also higher in cases with elevated hs-CRP (> 1 mg L(-1)) than those without. Multiple linear regression analysis demonstrated CYS and hs-CRP were significant independent predictors of baPWV and IMT in FH patients. CONCLUSIONS Both high cholesterol burden and vascular inflammation are not only associated with atherosclerosis, but also contribute to the development of arterial stiffness in FH patients. Early detection of hypercholesterolaemia in FH patients is warranted to prevent the untoward pathophysiologies.
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Affiliation(s)
- H M Cheng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
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Charng MJ, Chiou KR, Chang HM, Cheng HM, Ye ZX, Lin SJ. Identification and characterization of novel low-density lipoprotein receptor mutations of familial hypercholesterolaemia patients in Taiwan. Eur J Clin Invest 2006; 36:866-74. [PMID: 17087781 DOI: 10.1111/j.1365-2362.2006.01735.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Familial hypercholesterolaemia (FH) is an autosomal dominant disease associated with a very high risk of coronary vascular disease. The study objective was to identify patients with FH in Taiwan and characterize novel mutations. MATERIALS AND METHODS Fifty-one patients with suspected FH living in Taiwan were screened for mutations in both the low-density lipoprotein (LDL) receptor and the apolipoprotein (apoB) genes using the multiplex polymerase chain reaction and exon-by-exon DNA sequencing technique. Functional consequences on LDL receptor activity were characterized in vitro for novel mutations and family pedigree was also analyzed. RESULTS Thirteen different functional mutations in the LDL receptor gene and one mutation in the apoB gene were found in 21 patients. Among the 13 mutations in the LDL receptor gene, 10 were single-point missense mutations, one was a two-point mutation in the same allele, one was a non-sense mutation and one was a frame-shift mutation. There were three novel mutations, including two missense mutations (M510K and W512R) and one frame-shift mutation (1953 delTA mutation). The characterization of missense M510K retained 36.2% of the activity of the normal receptor. Conversely, frame-shift 1953 delTA and missense W512R led to defective proteins, with only 0-6% of normal receptor activity. CONCLUSIONS The study identified 13 LDL receptor gene mutations and characterized three novel mutations causing FH in Taiwan. This facilitated a better understanding of FH among the Chinese population and may enable diagnosis of FH at the molecular level at a presymptomatic, early age.
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Affiliation(s)
- M J Charng
- Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
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Yao X, Wu CZ, Wang H, Cheng HM, Lu GQ. Effects of carbon nanotubes and metal catalysts on hydrogen storage in magnesium nanocomposites. J Nanosci Nanotechnol 2006; 6:494-8. [PMID: 16573050 DOI: 10.1166/jnn.2006.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This paper reports a study on nanostructured magnesium composites with carbon nanotubes (CNTs) and catalytic transition metals with high H2 adsorption capacity and fast adsorption kinetics at reduced hydrogenation temperatures. Nanostructures in such a composite are shown to be responsible for improvements in both adsorption capacity and kinetics. It is found that the carbon nanotubes significantly increase the hydrogen storage capacity, and the catalytic transition metals (Fe and Ti) greatly improve the kinetics. This could be understood from the enhancement of diffusion by CNTs and decrease in energy barrier of hydrogen dissociation at the magnesium surface.
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Affiliation(s)
- X Yao
- ARC Centre for Functional Nanomaterials, School of Engineering, The University of Queensland, OLD 4072, Australia
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29
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Abstract
How short can single-walled carbon nanotubes (SWNTs) be? How stable are such supershort SWNTs (ss-SWNTs)? This work is the first to address these questions. On the basis of binding energy (E(B)), standard heats of formation , and strain energy (E(S)), we found that SWNTs with only one benzene ring in the axial direction, which we refer to as supershort SWNTs (ss-SWNTs), can be thermodynamically stable. On the basis of the data of E(B), , and E(S), the relative stabilities of ss-SWNTs, fullerenes, polycyclic aromatic hydrocarbons, and butadiyne are discussed. This study has laid a theoretical foundation for the possible synthesis of ss-SWNTs.
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Affiliation(s)
- C H Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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30
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Ong SG, Cheng HM, Soon SC, Goh E, Chow SK, Yeap SS. IgG anti-beta(2) glycoprotein I antibodies in Malaysian patients with antiphospholipid syndrome and systemic lupus erythematosus: prevalence and clinical correlations. Clin Rheumatol 2002; 21:382-5. [PMID: 12223986 DOI: 10.1007/s100670200102] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The aim of this study was to investigate the incidence of IgG anticardiolipin antibody (ACL) and IgG anti-beta(2) glycoprotein I antibody (anti-beta2GPI) positivity in patients with primary or secondary antiphospholipid syndrome (APS) and systemic lupus erythematosus (SLE), to assess the association between IgG ACL and anti-beta2GPI, and the relationship between the presence of ACL and anti-beta2GPI with the clinical manifestations of APS. IgG ACL and IgG anti-beta2GPI levels were measured in 51 SLE patients, 20 patients with SLE and APS (secondary APS) and 11 primary APS patients using commercially available ELISA kits. Relationships between laboratory data and clinical manifestations of the patients were examined. The incidence of IgG ACL positivity was significantly higher in primary (36.4%) and secondary (40%) APS than in SLE (13.7%) patients (P = 0.02). The incidence of IgG anti-beta2GPI positivity was significantly higher in primary (54.5%) and secondary (35%) APS than in SLE (7.8%) patients (P = 0.0006). Mean levels of IgG ACL and anti-beta2GPI were significantly higher in the primary and secondary APS than in the SLE patients (P = 0.002 for both). A significant relationship was found between IgG ACL and IgG anti-beta2GPI (P = 0.01, R(2) = 0.56). There was a significant correlation between the presence of IgG ACL and a history of thrombosis in the combined primary and secondary APS group, but not in SLE patients. In conclusion, in this study IgG ACL and IgG anti-beta2GPI are closely related and mean levels of IgG ACL and IgG anti-beta2GPI are higher in patients with either primary or secondary APS than in SLE patients.
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Affiliation(s)
- S G Ong
- University of Malaya, Kuala Lumpur, Malaysia
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31
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Yang CY, Chou CW, Chen SY, Cheng HM. Anterior pituitary failure (panhypopituitarism) with balanced chromosome translocation 46,XY,t(11;22)(q24;q13). Zhonghua Yi Xue Za Zhi (Taipei) 2001; 64:247-52. [PMID: 11458764] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Hypopituitarism is the clinical syndrome that results from failure of the anterior pituitary gland to produce its hormones. Hypopituitarism can result from: (1) intrinsic or primary pituitary disease; (2) intrinsic hypothalamic or secondary pituitary disease; or (3) extrinsic extrasellar or parasellar disease. The etiologies of primary hypopituitarism are miscellaneous. The dominant clinical picture of hypopituitarism in the adult is that of hypogonadism. Reports have associated hypopituitarism with anti-pituitary-antibodies, hereditary syndrome and chromosome defects, but hypopituitarism has rarely been associated with balanced chromosome translocation (11;22)(q24;q13). Here, we describe a case of anterior pituitary failure with balanced chromosome translocation. A 19-year-old Chinese teenager presented with failure of pubertal development and sexual infantilism. On examination, the patient had the classic appearance of hypogonadism. Endocrine studies and three combined pituitary function tests revealed panhypopituitarism. A chromosomal study revealed 46,XY,t(11;22)(q24;q13), a balanced translocation between 11q24 and 22q13. Chest films showed delayed fusion of bilateral humeral head epiphyses and bilateral acromions. Scrotal sonography revealed testes were small bilaterally. Magnetic resonance imaging (MRI) of the sella revealed pituitary dwarfism. The patient received 19 months replacement therapy, including steroids (prednisolone 5 mg each day), L-thyroxine (Eltroxin 100 ug each day), and testosterone enanthate 250 mg every two weeks. His height increased 4 cm with secondary sexual characteristics developed, and muscle power increased.
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Affiliation(s)
- C Y Yang
- Division of Endocrinology and Metabolism, Department of Medicine, Chi-Mei Foundation Hospital, 901, Chung-Hwa Road, Yung-Kang, Tainan 710, Taiwan.
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Sasaki H, Shui YB, Kojima M, Chew SJ, Ono M, Katoh N, Cheng HM, Takahashi N, Sasaki K. Characteristics of cataracts in the Chinese Singaporean. J Epidemiol 2001; 11:16-23. [PMID: 11253906 DOI: 10.2188/jea.11.16] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PURPOSE To conduct an epidemiological survey of cataracts and examine the characteristics of lens opacities in Chinese Singaporeans. The results are then compared with those from two similar surveys previously done in Japan in Noto Area, Honshu, and Amami, Kyushu, respectively. SUBJECTS AND METHODS 468 subjects of > or = 50 years of age, who responded to the invitation to participate, were examined. Examination principally included photo-documentation of the anterior and posterior segments of both eyes. Evaluation and grading of lens opacities were done using graphical analysis of Scheimpflug and retro-illumination images. Inter-group comparisons were based on statistical analysis of cataract prevalence and distribution. RESULTS The prevalence of clear lenses decreased with aging with no significant difference between males and females--a finding common to Singapore and the two Japanese study groups. The prevalence of cataracts (or lens opacities of Grade II and above) in 60-79 year-old Singapore subjects was significantly higher than Noto and Amami subjects in the same age group. Further, cortical opacity was the main type in Singapore subjects in their 50s and which was significantly higher than Noto subjects of the same age group. In all age groups, the distribution and prevalence of both nuclear and subcapsular types in the Singapore group were higher than the two Japanese study groups. CONCLUSIONS Cataracts in Chinese Singaporeans are characterized by a high prevalence of nuclear opacities which was generally seen in tropics and sub-tropics. Our study also suggested the involvement of solar-UV in cortical cataracts as well as that of additional risk factors, such as environmental temperature and race, in nuclear and subcapsular cataract formation.
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Affiliation(s)
- H Sasaki
- Dept. of Ophthalmology, Kanazawa Medical University, Uchinada, Ishikawa, Japan
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33
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Cheng HM. Lupus anticoagulant cofactors and the kidney. Nephron Clin Pract 2000; 78:245. [PMID: 9496755 DOI: 10.1159/000044928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We wish to supplement the useful comment by Stratta et al. [1] on the importance of including lupus anticoagulant (LA) tests when detecting for antiphospholipid autoantibodies (aPL), since monotesting solely with solid-phase aPL immunoassays may not be clinically relevant.
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34
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Jorio A, Dresselhaus G, Dresselhaus MS, Souza M, Dantas MS, Pimenta MA, Rao AM, Saito R, Liu C, Cheng HM. Polarized raman study of single-wall semiconducting carbon nanotubes. Phys Rev Lett 2000; 85:2617-2620. [PMID: 10978121 DOI: 10.1103/physrevlett.85.2617] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2000] [Indexed: 05/23/2023]
Abstract
Polarized Raman spectra were obtained from a rope of aligned semiconducting single-wall nanotubes (SWNTs) in the vicinity of the D band and the G band. Based on group theory analysis and related theoretical predictions, the G-band profile was deconvolved into four intrinsic SWNT components with the following symmetry assignments: 1549 cm(-1) [E2(E(2g))], 1567 cm(-1) [A(A(1g))+E1(E(1g))], 1590 cm(-1) [A(A(1g))+E1(E(1g))] and 1607 cm(-1) [E2(E(2g))]. The frequency shifts of the tangential G modes from the 2D graphitelike E(2g(2)) frequency are discussed in terms of the nanotube geometry.
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Affiliation(s)
- A Jorio
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA
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35
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Abstract
PURPOSE Excessive nearwork is believed to be associated with myopia development and progression. To investigate this further, we studied refractive error changes and their correlation with nearwork in a cohort of grade school children in Singapore. METHODS Cycloplegic autorefraction was performed 5 times over 10 months on 168 children aged 7, 9, and 12 years who were further divided into myopic and nonmyopic subgroups based in their initial refractive errors. Information about nearwork was obtained through diaries filled out over 24 h at the commencement of the study. RESULTS Myopia progression was high (overall mean: -0.87 D per year) and largely linear throughout the year, but significantly higher rates were seen after the final school examinations in 7-year-old myopes and nonmyopes. Overall, myopic groups exhibited higher progression rates than nonmyopic groups, although 33.6% of subjects from the latter groups had become myopic by the end of the study. Nearwork scores derived from the diaries were generally not well correlated with overall myopia progression. CONCLUSIONS The tendency for myopia progression rates to increase after the final school examinations in 7-year-olds is interpreted as a delayed effect of the intense nearwork associated with preparing for them. The timing of nearwork-diary data collection at the beginning of the study could be responsible for the poor correlation between these data and overall myopia progression rates.
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Affiliation(s)
- N W Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
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36
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Abstract
An attempt was made to study the effect of dietary taurine on the toxicity of oxidized fish oil in male Wistar rats. The rats were fed different diets with or without supplement of 5% taurine and 3% oxidized fish oil. After feeding diet with 3% oxidized fish oil and 5% taurine at the same time, taurine could improve the decrease of body weight and the glutathione (GSH) level in the liver, and the increase of relative ratios of liver and kidney weight to body weight and thiobarbituric acid-reactive substances (TBARS) level in the liver of rats caused by oxidized fish oil It also could reduce the activities of aspartate transaminase (AST), alanine transaminase (ALT) and alkaline phosphatase (ALP) in the plasma of rats caused by oxidized fish oil. It was also found that taurine possessed a good recovering effect and a short-term preventing effect from the toxicity of oxidized fish oil in rats. Judging from these data, this indicates that taurine may play an important role in reducing the toxic effect of oxidized fish oil in rats.
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Affiliation(s)
- D F Hwang
- Department of Food Science, National Taiwan Ocean University, Keelung, ROC.
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Sasaki K, Sasaki H, Kojima M, Shui YB, Hockwin O, Jonasson F, Cheng HM, Ono M, Katoh N. Epidemiological studies on UV-related cataract in climatically different countries. J Epidemiol 1999; 9:S33-8. [PMID: 10709348 DOI: 10.2188/jea.9.6sup_33] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [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: 11/18/2022] Open
Abstract
Cataract epidemiological surveys applying objective judgement through lens images in the climatically different places of Noto and Amami, Japan, Singapore and Reykjavik, Iceland yielded several significant results about the influence of solar UV. 1) The percentage of transparent and of lens opacification was significantly higher in the Reykjavik subjects than in the Singaporeans. 2) The percentages including early changes were higher in Amami and Singapore than in Noto and Reykjavik. 3) Progressed lens opacification was highest in Singapore. While the main type of lens opacification was cortical in Noto and Reykjavik, that of Singapore was nuclear. 4) A significant correlation between cortical opacification and the history of time spent outdoors was noticed. The UV risk for formation and/or progression of cortical opacification should be acceptable from the epidemiological standpoint.
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Affiliation(s)
- K Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Uchinada, Japan
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Abstract
Masses of single-walled carbon nanotubes (SWNTs) with a large mean diameter of about 1.85 nanometers, synthesized by a semicontinuous hydrogen arc discharge method, were employed for hydrogen adsorption experiments in their as-prepared and pretreated states. A hydrogen storage capacity of 4.2 weight percent, or a hydrogen to carbon atom ratio of 0.52, was achieved reproducibly at room temperature under a modestly high pressure (about 10 megapascal) for a SWNT sample of about 500 milligram weight that was soaked in hydrochloric acid and then heat-treated in vacuum. Moreover, 78.3 percent of the adsorbed hydrogen (3.3 weight percent) could be released under ambient pressure at room temperature, while the release of the residual stored hydrogen (0.9 weight percent) required some heating of the sample. Because the SWNTs can be easily produced and show reproducible and modestly high hydrogen uptake at room temperature, they show promise as an effective hydrogen storage material.
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Affiliation(s)
- C Liu
- Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110015, China. State Key Lab for Rapidly Solidified Non-equilibrium Alloys, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110015
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Cheng HM, Aafaqi S, Sam CK. Regulatory natural antibodies in hypertension? Hypertension 1999; 34:e10. [PMID: 10567206 DOI: 10.1161/01.hyp.34.5.e10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lam DSC, Cheuk W, Leung ATS, Fan DSP, Cheng HM, Chew SJ. Eye care when using video display terminals. Hong Kong Med J 1999; 5:255-257. [PMID: 11828065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
OBJECTIVE: To examine the scientific data in the literature regarding eye problems and possible damage during the use of computer video display terminals. DATA SOURCES: Medline and non-Medline literature search and personal experience. STUDY SELECTION: Studies that provided evidence-based information about eye damage and eye care during the use of video display terminals were selected. DATA EXTRACTION: Data were extracted independently by multiple observers. DATA SYNTHESIS: Most studies have shown that the levels of ionizing and non-ionizing radiation that are emitted by video display terminals are not harmful to the human eye. Eye complaints associated with the use of video display terminals include the McCollough effect, accommodative spasm, 'dry eyes', and eye strain. Ergonomic considerations and good visual hygiene can help alleviate symptoms. CONCLUSION: There is currently no convincing evidence that shows that using video display terminals is harmful to the eye.
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Affiliation(s)
- D SC Lam
- Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
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Abstract
Functional magnetic resonance imaging (fMRI) was used to map cortical areas that control eye blinking. T2*-weighted asymmetric spin-echo MRI (or BOLD-blood oxygen level dependent-MRI) was used to detect changes caused by focal variations in blood oxygenation. Six normal volunteers and two cases of dry eye (less than 5-mm Schirmer's test) entered the study. The experimental scheme consisted of three cycles of a two-step sequence: (eyes closed)-(blink or blink inhibition). And to minimize contamination from photic activation, the experiments were carried out in a dark environment and the volunteers reported no light perception during the MR scans. In all eight cases, normal blinking (about one blink every 4 sec) activated areas in the orbitofrontal cortex and in some cases, the visual cortex including the anterior portion of the visual cortex and the primary visual cortex. In severe dry eye, blink-inhibition strongly activated the visual cortex even after irritation due to corneal desiccation was removed by topical anesthesia. The blinking process, especially the rate, appears to be controlled in the orbitofrontal cortex. The significance of visual cortex activation in the dark and in the case of severe dry eye still remains unclear; although it may be associated with attention and arousal.
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Affiliation(s)
- K Tsubota
- Department of Ophthalmology, Tokyo Dental College, Chiba, 272, Japan
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44
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Cheng HM. Heterogeneity of natural masked autoantibodies: comment on the article by Anderson et al. Arthritis Rheum 1998; 41:2089-90. [PMID: 9811071 DOI: 10.1002/1529-0131(199811)41:11<2089::aid-art35>3.0.co;2-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Affiliation(s)
- H M Cheng
- Division of Nephrology, Queen Elizabeth Hospital, Hong Kong, China
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Chew SJ, Cheng HM, Lam DSC, Cheng ACK, Leung ATS, Chua JKH, Yu CP, Balakrishnan V, Chan WK. OphthWeb---cost-effective telemedicine for ophthalmology. Hong Kong Med J 1998; 4:300-304. [PMID: 11830687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
'OphthWeb' is an ophthalmic electronic medical record that can be accessed locally and globally via the Internet. OphthWeb can provide secure multimedia patient data to doctors, patients, and health care providers at any time and in any place. Patients have secured access to their own records in the convenience of their homes or during any emergency at any time or place around the world. OphthWeb provides interactive educational information and answers frequently asked questions by way of multimedia images on the Worldwide Web. A data transmission trial was conducted between the Xiamen Eye Centre in the Fujian province in southern China and Singapore. Clinical records, voice messages, and fundus and slit-lamp images were transmitted from Xiamen, and an off-line dialogue by e-mail and Internet-relay chat was conducted. The time delay from transmission to receipt was 30 minutes, which would be adequate to respond to most ophthalmic emergencies. This pilot project will promote computer literacy among doctors, and inter-institutional interaction in the health care profession. OphthWeb can provide telemedicine and electronic medical records at a low cost and great convenience.
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Affiliation(s)
- S J Chew
- Singapore Eye Research Institute, Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751, Singapore
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Cheng HM, Chamley LW. Oxidized LDL, placental trophoblast and B2-glycoprotein I. Proc Soc Exp Biol Med 1998; 218:277. [PMID: 9714070 DOI: 10.3181/00379727-218-44294a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- H M Cheng
- Department of Physiology, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
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Affiliation(s)
- H M Cheng
- Dept. of Physiology, Faculty of Medicine, University of Malaya, Kuala Lampur, Malaysia.
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Sam CK, Soon SC, Liam CK, Padmaja K, Cheng HM. An investigation of aeroallergens affecting urban Malaysian asthmatics. Asian Pac J Allergy Immunol 1998; 16:17-20. [PMID: 9681124] [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: 02/08/2023]
Abstract
We investigated the aeroallergens affecting 200 asthmatics from the University Hospital in Kuala Lumpur, Malaysia and found 164 (82%) patients with skin prick test (SPT) reactivity to one or more of a panel of 14 allergens, which included indoor and outdoor animal and plant aeroallergens. Reactivity was most frequent to the indoor airborne allergens, with 159 (79.5%) reacting to either or both house dust mite (Dermatophagoides) species and 87 (43.5%) to cockroach. The SPT reactivity to house dust mites corresponded with the finding that patients found house dust to be the main precipitant of asthmatic attacks.
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Affiliation(s)
- C K Sam
- Institute of Postgraduate Studies and Research, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Abstract
An attempt was made to study the effect of taurine on the toxicity of copper in male Wistar rats. The rats were divided into eight groups and fed different diets with or without supplement of 5% taurine and 150-600 ppm copper for 2 months. It was found that the levels of copper and malondialdehyde (MDA) in the liver, and the activities of aspartate transaminase (AST) and alanine transaminase (ALT) in the plasma of rats were increased with the increasing dose of copper. However, the levels of copper and MDA, and the enzyme activities of AST and ALT in the rats fed with supplement of taurine were significantly lower than in the rats fed without supplement of taurine. The level of copper in the faeces of rats treated with taurine and copper was higher than that of rats treated with copper alone. It indicated that taurine might play a role in reducing the toxic effect of copper in rats.
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Affiliation(s)
- D F Hwang
- Department of Marine Food Science, National Taiwan Ocean University, Keelung, ROC
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