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Zhou RF, He M, Yang B, Li X, Hu CJ. [Current practices in the harmonisation of autoantibodies test]. Zhonghua Nei Ke Za Zhi 2023; 62:356-362. [PMID: 37032129 DOI: 10.3760/cma.j.cn112138-20220422-00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Standardisation and harmonisation of the detection of autoantibodies is important for the clinical application of autoantibodies. However, achieving complete standardisation is difficult and involves several challenges due to the complexity and particularity of autoantibody detection. Harmonisation is feasible and valued, but it involves all aspects and processes of autoantibody detection. Based on the consensus and practice of the clinical application of autoantibody detection in recent years, we discuss harmonisation in this review.
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Affiliation(s)
- R F Zhou
- Department of Laboratory Medicine, Affiliated Wenling Hospital of Wenzhou Medical University, Taizhou 317500, China
| | - M He
- Department of Laboratory Medicine, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
| | - B Yang
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - X Li
- Department of Laboratory Medicine, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - C J Hu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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Bai YN, Deng CW, Song N, Qin JL, Li MT, Zeng XF, Hu CJ. [The analysis to data from Chinese Rheumatism Data Center external quality assurance program for autoantibodies in 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1860-1867. [PMID: 36536579 DOI: 10.3760/cma.j.cn112150-20220713-00717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To evaluate the data obtained from the external quality assurance program initiated by Chinese Rheumatism Data Center (CRDC-QAP) for autoantibodies detection in 2021, so as to assess the consensus and differences in cross-laboratory testing to autoantibodies in China. This is a retrospective study. After collecting data from the first half year (from May 15th to July 10th) and the second half year (from August 15th to November 19th) of CRDC-QAP program for autoantibody detection in 2021, it firstly analyzed the qualitative consensus of the cross-laboratory results. Secondly, it compared the positivity grade of numeric results according to the Sample to cut-off ratio (S/CO ratio) calculation. Finally, the mean and coefficient variation (CV) of numeric results from three major manufacturers were calculated. A total of 303 and 332 clinical labs voluntarily participated in the first half year and the second half year of CRDC-QAP program for autoantibody detection in 2021, respectively. Except for anti-β2 glycoprotein type I (aβ2-GPI) IgM, the cross-laboratory consensus of qualitative results for the other autoantibodies is greater than 96%. As for anti-cyclic citrullinated peptide antibody (anti-CCP) and anti mitochondrial antibody-M2 (AMA-M2), the numeric results from more than 90% laboratories showed the same positivity grade. More than 50% of laboratories used chemiluminescence immunoassay (CLIA) for quantitative evaluation of autoantibody. The CV of numeric results from different manufacturers showed certain differences(P<0.01) with the range from 0 to 238%. Although high consensus can be observed in term of qualitative result for autoantibody detection in cross-laboratory, there are still certain differences in numeric results in term of positivity grade and manufacturer-based CV.
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Affiliation(s)
- Y N Bai
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - C W Deng
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - N Song
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - J L Qin
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - M T Li
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - X F Zeng
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - C J Hu
- Department of Rheumatology and Clinical Immunology, Chinese Academy of Medical Sciences & Peking Union Medical College, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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Tang YH, Li YY, Xie YQ, Zhang SD, Xu SX, Le RR, Chu XZ, Hu CJ, Wang XJ, Pan WH, Liang YB. [Phacoemulsification combined with goniosynechialysis under a gonioscope in the treatment of angle-closure glaucoma: the effect of reopening the synechial anterior chamber angle]. Zhonghua Yan Ke Za Zhi 2022; 58:701-705. [PMID: 36069091 DOI: 10.3760/cma.j.cn112142-20211127-00565] [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: 06/15/2023]
Abstract
A total of 170 consecutive patients (181 eyes) who were diagnosed with primary angle-closure glaucoma (PACG) and underwent phacoemulsification and intraocular lens implantation (PEI) combined with goniosynechialysis (GSL) with an instrument under a gonioscope in the Eye Hospital, Wenzhou Medical University from January 1, 2017 to December 31, 2019 were observed. Anterior chamber angle synechiae of 0 (0, 2) clock hour were released after PEI, while after combined goniosynechialysis, synechiae of 6 (3, 8) clock hours were further released. No matter in chronic PACG and acute PACG with cornea edema, the extent of anterior chamber angle synechiae was different before surgery and after PEI, and so was it in post-PEI and PEI-GSL prospectively (all P<0.01). Phacoemulsification alone can reopen the synechial anterior chamber angle in both chronic PACG and acute PACG in part, but not sufficiently. Combined goniosynechialysis under a gonioscope with an instrument is essential and effective.
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Affiliation(s)
- Y H Tang
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - Y Y Li
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - Y Q Xie
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - S D Zhang
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - S X Xu
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - R R Le
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - X Z Chu
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - C J Hu
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - X J Wang
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - W H Pan
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
| | - Y B Liang
- The Eye Hospital, School of Ophthalmology and Optometry, Glaucoma Research Institute, Wenzhou Medical University, National Clinical Research Center for Ocular Diseases, Wenzhou 325027, China
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Luo YM, Wang R, Bai YN, Song N, Li MT, Zeng XF, Hu CJ. [The clinical characteristics of nuclear dense fine speckled pattern in 95 289 patients]. Zhonghua Nei Ke Za Zhi 2022; 61:1044-1048. [PMID: 36008298 DOI: 10.3760/cma.j.cn112138-20210901-00607] [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: 06/15/2023]
Abstract
To investigate the distribution and clinical significance of nuclear dense fine speckled (DFS) pattern in various diseases. A total of 95 289 patients who received DFS tests at Peking Union Medical College Hospital from January 2019 to December 2020 were included in this study. The results of indirect immunofluorescence assay (IIF) for detection of antinuclear antibody (ANA) were evaluated. The positive rates of ANA and DFS were 39.60% (37 733/95 289) and 1.19% (1 139/95 289) respectively. The positive rate of DFS in ANA-positive patients was 3.02% (1 139/37 733). DFS and ANA positivity were significantly different among different age groups rather than gender. The positivity rate of DFS reached the peak (55.57%, 633/1 139) in young patients between 21-40 years, while positive ANA with negative DFS was mainly observed in patients between 41-60 years (37.26%, 13 636/36 594). Additionally, single ANA-positivity were mainly detected in rheumatology department (59.23%, 18 402/31 066), whereas positive DFS was more common in obstetrics and gynecology department (3.08%, 49/1 593). There were 82.88% (944/1 139) patients with positive DFS diagnosed with non-autoimmune disease (non-AID), and 19.49%(222/1 139) with dermatosis. Positive DFS with higher titer (≥1∶320) was detected more frequently in autoimmune disease (AID) patients (5.13%, 10/195) than in non-AID patients (1.69%, 16/944) (P<0.05). The DFS pattern is rare in ANA positive patients, which is mainly observed in women between 21-49 years. High titer of DFS is prevalent in AID patients, but positive DFS is detected more in non-AID patients, especially those with dermatosis.
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Affiliation(s)
- Y M Luo
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - R Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Y N Bai
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - N Song
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - M T Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - X F Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - C J Hu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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Shi GY, Zeng Q, Wei YW, Ye XL, Hu CJ, Jiao C. First Report of Anthracnose Caused by Colletotrichum brasiliense on Violet Passion Fruit in China. Plant Dis 2022; 106:PDIS11202485PDN. [PMID: 34227834 DOI: 10.1094/pdis-11-20-2485-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- G Y Shi
- Microbiology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, P.R. China
| | - Q Zeng
- Microbiology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, P.R. China
| | - Y W Wei
- Guangxi Crop Genetic Improvement and Biotechnology Laboratory, Nanning, Guangxi 530007, P.R. China
| | - X L Ye
- Microbiology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, P.R. China
| | - C J Hu
- Microbiology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, Guangxi 530007, P.R. China
| | - C Jiao
- Heqing County Branch of Dali Prefecture Tobacco Company, Heqing, Yunnan 672100, P.R. China
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Yang B, Zhao JL, Huang ZC, Su ZZ, Li MT, Zeng XF, Hu CJ. [Value of IgA antiphospholipid antibodies in diagnosis of the antiphospholipid syndrome]. Zhonghua Yi Xue Za Zhi 2021; 101:3404-3410. [PMID: 34758544 DOI: 10.3760/cma.j.cn112137-20210424-00976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To examine the prevalence of multiple antiphospholipid antibodies (aPL) subtypes in healthy people and antiphospholipid syndrome (APS) patients, and to assess the value of IgA-aPL in the diagnosis of APS. Methods: According to the 2006 Sydney International APS Classification Criteria, a total of 218 APS patients who were admitted to Peking Union Medical College Hospital or West China Hospital of Sichuan University from July to December 2019 were enrolled. Among them, 66 were males, and 152 were females, aged (44.5±15.4) years, including 148 primary APS patients and 70 secondary APS patients. Age-and gender-matched controls were collected at the same period at the ratio of 1∶1 with the APS cases. IgA/IgG/IgM anticardiolipin antibodies (aCL) and anti-β2 glycoprotein I antibodies (aβ2GPI) were detected by chemiluminescent immunoassay. The differences of indicators between groups were analyzed, and the receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of IgA-aPL for APS. Results: The positivity of IgA-aCL and IgA-aβ2GPI was 20.6% and 15.6% in the APS patients, while in the IgG/IgM-aCL or IgG/IgM-aβ2GPI negative individuals, the isolated positivity of IgA-aCL and IgA-aβ2GPI was only 2.3% and 0.9%, respectively. Accordingly, IgA-aCL and IgA-aβ2GPI isolated positivity could be used to diagnose APS (P=0.216, 1, respectively). The area under the ROC curve (AUC) of IgG/IgM-aCL for APS diagnosis was 0.833, which was significantly better than that of IgG-aCL alone (AUC=0.776, P<0.001); while the AUC of IgA/IgG/IgM-aCL was 0.833, which could not further increase the diagnostic value for APS (P=0.287). As for aβ2GPI, the diagnostic efficacy of combined IgG/IgM (AUC=0.875) or IgA/IgG/IgM (AUC=0.875) antibodies was not superior to IgG-aβ2GPI used alone (AUC=0.869, both P>0.05). Besides, patients with IgA-aPL were more likely to have heart valve lesions and thrombocytopenia (both P<0.05). Conclusion: Based on the existing serological markers, such as lupus anticoagulant, IgG/IgM subtype of aCL and aβ2GPI, testing IgA-aCL and IgA-aβ2GPI cannot further improve the predictive value of APS. However, IgA-aPL is associated with clinical manifestations of APS, including heart valve lesions and thrombocytopenia.
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Affiliation(s)
- B Yang
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - J L Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Z C Huang
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Z Z Su
- Department of Laboratory Medicine, West China Hospital of Sichuan University, Chengdu 610041, China
| | - M T Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - X F Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - C J Hu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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Chen YL, Hu CJ, Peng LY, Wang CH, Zhao Y, Zhang W, Liu DZ. Current state of technologies and recognition of anti-SSA/Ro antibodies in China: A multi-center study. J Clin Lab Anal 2021; 35:e24045. [PMID: 34674312 PMCID: PMC8649342 DOI: 10.1002/jcla.24045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/30/2021] [Accepted: 09/27/2021] [Indexed: 11/25/2022] Open
Abstract
Background Previous studies have demonstrated that Ro60 and Ro52 have different clinical implications, and anti‐Ro52 antibodies are an independent serum marker of systemic autoimmune diseases, including Sjögren's syndrome. Many different assays have been adopted to detect anti‐Sjögren's syndrome antigen A (SSA)/Ro antibodies, while to date no specific approach has been recommended as optimal for anti‐SSA/Ro antibody testing. Herein, we performed a multi‐center study to explore the current clinical utility of different strategies for anti‐SSA/Ro antibody testing in China. Methods Twenty‐one tertiary care centers were included in this questionnaire‐based study. The self‐administered questionnaire mainly includes testing methods for anti‐SSA/Ro antibodies, reporting system of results, and interpretation of results by clinicians. Results Six different methods were applied to detect anti‐SSA/Ro antibodies in the 21 centers. Line immunoassay (eight different commercial kits) was the most frequently adopted method (21/21, 100%), with different cutoff values and strategies for intensity stratification. There were two reporting systems: One was reported as “anti‐SSA antibodies” and “anti‐Ro52 antibodies” (12/21, 57%), while the other was “anti‐SSA/Ro60 antibodies” and “anti‐SSA/Ro52 antibodies” (9/21, 43%). Notably, six centers (29%) considered either positive anti‐Ro60 or anti‐Ro52 antibodies as positive anti‐SSA antibodies, all of which adopted the latter reporting system. Conclusion Significant variabilities existed among anti‐SSA/Ro assays. Nearly 30% of centers misinterpreted the definition of positive anti‐SSA antibodies, which may be attributed to the confusing reporting systems of line immunoassay. Therefore, we advocate standardization of the nomenclature of anti‐SSA/Ro antibodies, changing the “anti‐SSA/Ro52” label in favor of the “anti‐Ro52” antibodies for a clear designation.
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Affiliation(s)
- Yu-Lan Chen
- Department of Rheumatology and Immunology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China
| | - Chao-Jun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Lin-Yi Peng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Chu-Han Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Yan Zhao
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Wen Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing, China.,National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, China
| | - Dong-Zhou Liu
- Department of Rheumatology and Immunology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China
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Hu CJ, Zhang L, Zhou S, Jiang N, Zhao JL, Wang Q, Tian XP, Zeng XF. Effectiveness of iguratimod as monotherapy or combined therapy in patients with rheumatoid arthritis: a systematic review and meta-analysis of RCTs. J Orthop Surg Res 2021; 16:457. [PMID: 34271950 PMCID: PMC8283838 DOI: 10.1186/s13018-021-02603-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/07/2021] [Indexed: 11/18/2022] Open
Abstract
Background This study aims to evaluate the efficacy and safety of the iguratimod (IGU) as monotherapy or combined therapy in patients with rheumatoid arthritis (RA) by using meta-analysis. Methods We searched Medline, EMBASE, Cochrane library, CNKI, Wanfang medical network from initial to 30 June, 2020, for randomized clinical trials (RCTs). Two authors independently screened the studies via reading the title, abstract, and full text. The risk of bias in individual studies was assessed using the Cochrane Risk of Bias tool. STATA 12.0 was used for pooled analysis of all included studies. Results A total of 23 RCTs were included in this analysis. Meta-analysis showed that patients in the IGU monotherapy or combined therapy group had significantly higher ACR20 (OR = 1.97, 95% CI 1.29 to 3.00, P = 0.002), lower DAS28-CRP (SMD = −3.49, 95% CI −5.40 to −1.58, P < 0.001) and DAS28-ESR (SMD = −2.61, 95% CI −3.64 to −1.57, P < 0.001), as well as shorter duration of morning stiffness (SMD = −2.06, 95% CI −2.86 to −1.25, P < 0.001) and lower HAQ score (SMD = −0.91, 95% CI −1.61 to −0.21, P = 0.011), than those received other disease-modifying antirheumatic drugs (DMARDs) monotherapy (primarily comprising methotrexate). For the safety profile, IGU monotherapy had similar risks for gastrointestinal reactions (P = 0.070), leucopenia (P = 0.309), increment in transaminase (P = 0.321), increase of ALT (P = 0.051), and liver damage (P = 0.182) to methotrexate monotherapy, and IGU combined with other DMARDs therapy did not increase the risks of these AEs (P > 0.05). Conclusions Our evidence suggests that IGU is effective and tolerant as monotherapy or combined therapy especially with methotrexate in patients with active RA. IGU may be regarded as a potential alternative to methotrexate, and a preferable choice when combined with other DMARDs for the treatment of RA. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-021-02603-2.
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Affiliation(s)
- Chao-Jun Hu
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Li Zhang
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Shuang Zhou
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Nan Jiang
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Jiu-Liang Zhao
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China.
| | - Qian Wang
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Xin-Ping Tian
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
| | - Xiao-Feng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Peking Union Medical College & Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, China
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9
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Wei JF, Huang SB, Jin P, Li JY, Yang YY, Hu CJ, Yang LF, Zhang ZW, Deng M, Deng JP. An incremental feeding pattern for Guangdong Small-ear Spotted gilts during gestation: effects on stillbirth rate and muscle weight of progeny. Domest Anim Endocrinol 2021; 75:106604. [PMID: 33556766 DOI: 10.1016/j.domaniend.2021.106604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 11/08/2020] [Accepted: 01/05/2021] [Indexed: 11/25/2022]
Abstract
While an appropriate feed intake is crucial for the reproductive performance of sows, there is a lack of recommendations currently for feed allowance of Guangdong Small-ear Spotted gilts during gestation. The effects of 2 different feeding patterns during gestation on the reproductive performance of Guangdong Small-ear Spotted gilts were investigated by assigning 80 gilts to 2 feeding pattern groups with a randomized complete block design in accordance with initial body weight and back fat thickness, followed by treatment with an incremental feeding pattern (IFP) and a concaved feeding pattern, respectively, with no difference in total feed intake. The IFP group showed a significant decrease in the stillbirth rate (P < 0.05) and an upward trend in piglet mean birth weight (P = 0.06). Furthermore, the IFP group exhibited an increase in the weights of stomach, supraspinatus tendon, triceps, and psoas minor in neonatal piglets (P < 0.05). Overall, the results of the present investigation showed that IFP could significantly reduce the stillbirth rate of Guangdong Small-ear Spotted gilts and increase the muscle weight of progeny.
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Affiliation(s)
- J F Wei
- Guangzhou DaBeiNong Agri-animal Huabandry Science and Technology Co., Ltd, Guangzhou, Guangdong 510642, China
| | - S B Huang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - P Jin
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - J Y Li
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Y Y Yang
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - C J Hu
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - L F Yang
- Guangdong Yihao Foodstuffs Co. Ltd, Guangzhou, Guangdong 510642, China
| | - Z W Zhang
- Guangdong Yihao Foodstuffs Co. Ltd, Guangzhou, Guangdong 510642, China
| | - M Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China.
| | - J P Deng
- Guangdong Provincial Key Laboratory of Animal Nutrition Control, National Engineering Research Center for Breeding Swine Industry, Institute of Subtropical Animal Nutrition and Feed, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong 510642, China.
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10
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Abstract
The European cohort study has indicated about CD74 IgG-autoantibodies as potential marker for axial spondyloarthritis (axSpA) diagnosis. However, multiple studies have questioned the diagnostic value of various disease-specific autoantibodies in different ethnic groups. Here, we have tried to assess the diagnostic value of anti-CD74 IgG and IgA autoantibodies in axSpA patients from Chinese Han population.The anti-CD74 IgG and IgA autoantibodies were analyzed using ELISA assay in a cohort of 97 axSpA patients, including 47 treatment-naïve axSpA patients never treated with steroids or immunosuppressants and 50 treated axSpA patients. The rheumatic disease control (RDC) group consisted of 40 rheumatoid arthritis, 25 systemic lupus erythematosus, 18 psoriatic arthritis patients, and 60 healthy controls (HC).Our data demonstrated the presence of anti-CD74 IgA auto-antibodies in 25.8% of the axSpA patients, 30.1% of the RDC group patients and none in HC. Similarly, anti-CD74 IgG autoantibodies were observed in 23.7% of the axSpA patients, 18.1% of the RDC patients and 18.3% of the HC. The sensitivity, specificity, and accuracy of IgA autoantibodies were 21.3%, 82.5%, & 67.4%, respectively, while for IgG, it was 27.7%, 81.8%, and 68.4%, in treatment-naïve axSpA patients. Furthermore, weak positive relationship between anti-CD74 IgA autoantibodies and bath ankylosing spondylitis disease activity index ( r = 0.253, P = .012) and functional index (bath ankylosing spondylitis functional index; r = 0.257, P = .011) was observed.Overall, our study demonstrated little clinical and predictive value of CD74 autoantibodies in the diagnosis of axSpA and its related manifestations, among Chinese Han population.
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Affiliation(s)
- Chao-Jun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Meng-Tao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xi Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Lin-Yi Peng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Shang-Zhu Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xiao-Mei Leng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Jin-Mei Su
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xiao-Feng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
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11
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Hu CJ, Jiang QY, Zhang T, Yin YL, Li FN, Su JY, Wu GY, Kong XF. Dietary supplementation with arginine and glutamic acid enhances key lipogenic gene expression in growing pigs. J Anim Sci 2018; 95:5507-5515. [PMID: 29293787 DOI: 10.2527/jas2017.1703] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Our previous study showed dietary supplementation with Arg and Glu increased intramuscular fat deposition and decreased back fat thickness in pigs, suggesting that the genes involved in lipid metabolism might be regulated differently in muscle and s.c. adipose (SA) tissues. Sixty Duroc × Large White × Landrace pigs with an average initial BW of 77.1 ± 1.3 kg were randomly assigned to 1 of 5 treatment groups (castrated male to female ratio = 1:1). Pigs in the control group were fed a basic diet, and those in experimental groups were fed the basic diet supplemented with 2.05% alanine (isonitrogenous group), 1.00% arginine (Arg group), 1.00% glutamic acid + 1.44% alanine (Glu group), or 1.00% arginine + 1.00% glutamic acid (Arg+Glu group). Fatty acid percentages and mRNA expression levels of the genes involved in lipid metabolism in muscle and SA tissues were examined. The percentages of C14:0 and C16:0 in the SA tissue of Glu group pigs and C14:0 in the longissimus dorsi (LD) muscle of Glu and Arg+Glu groups decreased ( < 0.05) compared to the basic diet group. The Arg+Glu group showed the highest ( < 0.05) hormone-sensitive lipase expression level in SA tissue and higher ( < 0.05) mRNA levels of in the LD muscle than the basic diet and isonitrogenous groups. Additionally, the mRNA level of fatty acid synthase in the Arg+Glu group was more upregulated ( < 0.05) than that of the Arg group. An increase in the mRNA level of in the biceps femoris muscle was also observed in the Arg+Glu group ( < 0.05) compared with the basic diet and isonitrogenous groups. Collectively, these findings suggest that dietary supplementation with Arg and Glu upregulates the expression of genes involved in adipogenesis in muscle tissues and lipolysis in SA tissues.
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Hu CJ, Jiang QY, Zhang T, Yin YL, Li FN, Deng JP, Wu GY, Kong XF. Dietary supplementation with arginine and glutamic acid modifies growth performance, carcass traits, and meat quality in growing-finishing pigs. J Anim Sci 2018; 95:2680-2689. [PMID: 28727042 DOI: 10.2527/jas.2017.1388] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Sixty Duroc × Large White × Landrace pigs with an average initial BW of 77.1 ± 1.3 kg were used to investigate the effects of dietary supplementation with arginine and glutamic acid on growth performance, carcass traits, and meat quality in growing-finishing pigs. The animals were randomly assigned to 1 of 5 treatment groups (12 pigs/group, male:female ratio 1:1). The pigs in the control group were fed a basal diet (basal diet group), and those in the experimental groups were fed the basal diet supplemented with 2.05% -alanine (isonitrogenous group), 1.0% -arginine (Arg group), 1% glutamic acid + 1.44% -alanine (Glu group), or 1.0% -arginine + 1.0% glutamic acid (Arg+Glu group). After a 60-d period of supplementation, growth performance, carcass traits, and meat quality were evaluated. The results showed no significant differences ( > 0.05) in growth performance and carcass traits of the pigs in the Arg group relative to the basal diet group; however, the longissimus dorsi (LD) muscle and back fat showed a decrease ( < 0.05) in the percentage of SFA. In the Glu group, the final BW, phase 1 (d 1 to 30) and phase 2 (d 31 to 60) ADFI, and average back fat thickness of the pigs decreased ( < 0.05) by 7.14%, 23.43%, 8.03%, and 33.88%, respectively, when compared with the basal diet group. Dietary Arg+Glu supplementation had no effect ( > 0.05) on the final BW, phase 2 ADFI, and average daily weight gain in pigs but decreased ( < 0.05) their phase 1 ADFI, average back fat thickness, and percentage of SFA in the LD muscle and back fat, and increased ( < 0.05) the i.m. fat (IMF) content of the LD and biceps femoris muscles when compared with the basal diet group. Furthermore, a 16% decrease in yellowness (b* value; < 0.05) was observed in the Arg+Glu group pigs when compared with the isonitrogenous group. These findings suggest that dietary supplementation with both Arg and Glu beneficially increases the IMF deposition and improves the meat color and fatty acid composition without affecting growth performance and s.c. fat in pigs, providing a novel strategy to enhance meat quality in growing-finishing pigs.
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Deng CW, Wang L, Fei YY, Hu CJ, Yang YJ, Peng LY, Zeng XF, Zhang FC, Li YZ. Exploring pathogenesis of primary biliary cholangitis by proteomics: A pilot study. World J Gastroenterol 2017; 23:8489-8499. [PMID: 29358857 PMCID: PMC5752709 DOI: 10.3748/wjg.v23.i48.8489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/21/2017] [Accepted: 11/28/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To explore the pathogenesis of primary biliary cholangitis (PBC) by identifying candidate autoantibodies in serum samples by proteomics and bioinformatics. METHODS Nine antimitochondrial antibody (AMA)-positive PBC patients and nine age- and sex-matched AMA-negative PBC patients were recruited. Antigen enrichment technology was applied to capture autoantigens of human intrahepatic biliary epithelial cells (HiBECs) that are recognized by autoantibodies from the sera of PBC patients. Candidate autoantigens were identified by label-free mass spectrometry. Bioinformatics analysis with MaxQuant software (version 1.5.2.8), DAVID platform, and Cytoscape v.3.0 allowed illustration of pathways potentially involved in the pathogenesis of PBC. RESULTS In total, 1081 candidate autoantigen proteins were identified from the PBC patient pool. Among them, 371 were determined to be significantly differentially expressed between AMA-positive and -negative PBC patients (P < 0.05). Fisher's exact test was performed for enrichment analysis of Gene Ontology protein annotations (biological processes, cellular components, and molecular functions) and the Kyoto Encyclopedia of Genes and Genomes pathways. Significantly different protein categories were revealed between AMA-positive and -negative PBC patients. As expected, autoantigens related to mitochondria were highly enriched in AMA-positive PBC patients. However, lower levels of AMA were also detected in AMA-negative PBC patients. In addition, autoantigens of AMA-negative PBC patients were mainly involved in B-cell activation, recognition of phagocytosis, and complement activation. CONCLUSION AMA-negative PBC individuals may not exist, but rather, those patients exhibit pathogenesis pathways different from those of AMA-positive PBC. Comprehensive research is needed to confirm these observations.
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Affiliation(s)
- Chui-Wen Deng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Li Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Yun-Yun Fei
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Chao-Jun Hu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Yun-Jiao Yang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Lin-Yi Peng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Xiao-Feng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Feng-Chun Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
| | - Yong-Zhe Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing 100730, China
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14
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Hu CJ, Pan JB, Song G, Wen XT, Wu ZY, Chen S, Mo WX, Zhang FC, Qian J, Zhu H, Li YZ. Identification of Novel Biomarkers for Behcet Disease Diagnosis Using Human Proteome Microarray Approach. Mol Cell Proteomics 2016; 16:147-156. [PMID: 27777341 DOI: 10.1074/mcp.m116.061002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 09/26/2016] [Indexed: 11/06/2022] Open
Abstract
Behcet disease (BD) is a chronic systemic vasculitis and considered as an autoimmune disease. Although rare, BD can be fatal due to ruptured vascular aneurysms or severe neurological complications. To date, no known biomarker has been reported for this disease, making it difficult to diagnosis in the clinics. To undertake this challenge, we employed the HuProt arrays, each comprised of ∼20,000 unique human proteins, to identify BD-specific autoantibodies using a Two-Phase strategy established previously. In Phase I, we profiled the autoimmunity on the HuProt arrays with 75 serum samples collected from 40 BD patients, 15 diagnosed autoimmune patients who suffer from Takayasu arteritis (TA; n = 5)), ANCA associated vasculitis (AAV; n = 5), and Sjogren's syndrome (SS; n = 5), and 20 healthy subjects, and identified 20 candidate autoantigens that were significantly associated with BD. To validate these candidates, in Phase II we constructed a focused array with these 20 candidate BD-associated antigens, and use it to profile a much larger cohort, comprised of serum samples collected from 130 BD patients, 103 autoimmune patients (i.e. 40TA, 40 AAV and 23 SS), and 110 healthy controls. This allowed us to validate CTDP1 (RNA polymerase II subunit A C-terminal domain phosphatase)as a BD-specific autoantigen. The association of anti-CTDP1 with BD patients was further validated using the traditional Western blotting analysis. In conclusion, anti-CTDP1 antibody serves a novel autoantibody for Behcet disease and is expected to help more accurate clinical diagnosis.
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Affiliation(s)
- Chao-Jun Hu
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Jian-Bo Pan
- §Department of Ophthalmology, Wilmer Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Guang Song
- ¶Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Xiao-Ting Wen
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Zi-Yan Wu
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Si Chen
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Wen-Xiu Mo
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Feng-Chun Zhang
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730
| | - Jiang Qian
- §Department of Ophthalmology, Wilmer Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Heng Zhu
- ¶Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Yong-Zhe Li
- From the ‡Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China100730;
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15
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Shahrizaila N, Sobue G, Kuwabara S, Kim SH, Birks C, Fan DS, Bae JS, Hu CJ, Gourie-Devi M, Noto Y, Shibuya K, Goh KJ, Kaji R, Tsai CP, Cui L, Talman P, Henderson RD, Vucic S, Kiernan MC. Amyotrophic lateral sclerosis and motor neuron syndromes in Asia. J Neurol Neurosurg Psychiatry 2016; 87:821-30. [PMID: 27093948 DOI: 10.1136/jnnp-2015-312751] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 03/23/2016] [Indexed: 12/11/2022]
Abstract
While the past 2 decades have witnessed an increasing understanding of amyotrophic lateral sclerosis (ALS) arising from East Asia, particularly Japan, South Korea, Taiwan and China, knowledge of ALS throughout the whole of Asia remains limited. Asia represents >50% of the world population, making it host to the largest patient cohort of ALS. Furthermore, Asia represents a diverse population in terms of ethnic, social and cultural backgrounds. In this review, an overview is presented that covers what is currently known of ALS in Asia from basic epidemiology and genetic influences, through to disease characteristics including atypical phenotypes which manifest a predilection for Asians. With the recent establishment of the Pan-Asian Consortium for Treatment and Research in ALS to facilitate collaborations between clinicians and researchers across the region, it is anticipated that Asia and the Pacific will contribute to unravelling the uncertainties in ALS.
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Affiliation(s)
- N Shahrizaila
- Faculty of Medicine, Neurology Unit, Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia Brain and Mind Centre, University of Sydney, Camperdown, New South Wales, Australia
| | - G Sobue
- Department of Neurology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Kuwabara
- Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - S H Kim
- Department of Neurology, Hanyang University Medical Center, Seoul, South Korea
| | - Carol Birks
- International Alliance of ALS/MND Associations, Sydney, New South Wales, Australia
| | - D S Fan
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - J S Bae
- Department of Neurology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - C J Hu
- Department of Neurology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - M Gourie-Devi
- Department of Neurology, Institute of Human Behaviour and Allied Sciences (IHBAS), New Delhi, Delhi, India
| | - Y Noto
- Brain and Mind Centre, University of Sydney, Camperdown, New South Wales, Australia Department of Neurology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - K Shibuya
- Brain and Mind Centre, University of Sydney, Camperdown, New South Wales, Australia Department of Neurology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - K J Goh
- Faculty of Medicine, Neurology Unit, Department of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - R Kaji
- Department of Clinical Neuroscience, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
| | - C P Tsai
- Department of Neurology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan
| | - L Cui
- Department of Neurology, Peking Union Medical College Hospital, Beijing, China
| | - P Talman
- Neurology Unit, Calvary Health Care, Bethlehem Hospital, Caulfield, Victoria, Australia
| | - R D Henderson
- Department of Neurology, Royal Brisbane and Women's Hospital, Herston, Queensland, Australia
| | - S Vucic
- The Brain Dynamics Centre, Westmead Millennium Institute, Westmead, NSW and Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - M C Kiernan
- Brain and Mind Centre, University of Sydney, Camperdown, New South Wales, Australia
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Liao CC, Chang PY, Yeh CC, Hu CJ, Wu CH, Chen TL. Outcomes after surgery in patients with previous stroke. Br J Surg 2014; 101:1616-22. [PMID: 25224956 DOI: 10.1002/bjs.9639] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 06/27/2014] [Accepted: 07/30/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Limited information is available on the association between a medical history of stroke and postoperative outcomes. This study investigated the outcomes following non-neurological surgery in patients with previous stroke. METHODS Using Taiwan's National Health Insurance Research Database, a nationwide cohort study was conducted of patients who underwent non-neurological surgery between 2008 and 2010 with a medical history of stroke in the 24-month period before operation. Patients who had non-neurological surgeries without previous stroke were selected as controls by the propensity score-matched pair method. Thirty-day postoperative complications and in-hospital mortality were compared between the two groups. RESULTS Some 1 426 795 adults underwent major inpatient non-neurological surgery, of whom 45 420 had a medical history of previous stroke. Patients with previous stroke who underwent surgery had an increased risk of postoperative pneumonia, septicaemia, acute renal failure, acute myocardial infarction, pulmonary embolism and 30-day in-hospital mortality (adjusted rate ratio (RR) 1·79, 95 per cent c.i. 1·61 to 1·99). Compared with controls, patients with previous stroke due to intracerebral haemorrhage (RR 3·41, 2·97 to 3·91), and those who were treated in intensive care (RR 2·55, 2·24 to 2·90) or underwent neurosurgery (RR 2·49, 2·12 to 2·92), had an increased 30-day in-hospital mortality rate. Postoperative mortality also increased with stroke-related co-morbidities, and with stroke 1-6 months before surgery (RR 3·31, 2·91 to 3·75). CONCLUSION Patients with previous stroke had a higher risk of adverse postoperative outcomes; their 30-day in-hospital mortality rate was nearly twice that of patients without previous stroke.
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Affiliation(s)
- C C Liao
- Department of Anaesthesiology, Health Policy Research Centre, Taipei Medical University Hospital, Taipei, Taiwan; Health Policy Research Centre, Taipei Medical University Hospital, Taipei, Taiwan; School of Medicine, Taipei Medical University, Taipei, Taiwan; Department of School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
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Xu D, Li MT, Hou Y, Wang Q, Hu CJ, Song N, Zhao JL, Zeng XF, Zhang FC. Clinical characteristics of systemic sclerosis patients with digital ulcers in China. Clin Exp Rheumatol 2013; 31:46-49. [PMID: 23910609] [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] [Received: 01/03/2013] [Accepted: 03/15/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVES To investigate the clinical characteristics of SSc patients with DUs in China. METHODS The data of 267 consecutive SSc patients based on the EUSTAR DATABASE from Peking Union Medical College Hospital from February 2009 to March 2012 were prospectively collected. The patients with DUs were compared to those without DUs. RESULTS Seventy-nine patients (29.6%) had DUs out of 267 SSc patients analysed. There were significant differences between patients with and without DU based on sex (female/male: 65/14 vs. 174/14), age of onset of SSc (32.3±11.7 vs. 40.4±12.6 y), age of onset of Raynaud's phenomenon (31.8±12.3 vs. 38.7±12.2) (p<0.05). In addition, there was a higher rate of diffuse SSc, gastrointestinal involvement, (especially esophageal involvement), and pericardial effusion, higher mRodnan score, and more anti-scl70 antibody positivity in patients with DU (p<0.05). A multivariate analysis identified anti-Scl70 antibody positivity, gastrointestinal involvement and a younger age at disease onset as three risk factors for developing DUs in SSc patients. CONCLUSIONS The occurrence of DUs in Chinese SSc patients is frequent. It is possible that SSc patients with DUs were influenced by the disease earlier in life, which should be detected early for effective intervention.
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Affiliation(s)
- Dong Xu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing, China.
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Hu CJ, Song G, Huang W, Liu GZ, Deng CW, Zeng HP, Wang L, Zhang FC, Zhang X, Jeong JS, Blackshaw S, Jiang LZ, Zhu H, Wu L, Li YZ. Identification of new autoantigens for primary biliary cirrhosis using human proteome microarrays. Mol Cell Proteomics 2012; 11:669-80. [PMID: 22647870 DOI: 10.1074/mcp.m111.015529] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Primary biliary cirrhosis (PBC) is a chronic cholestatic liver disease of unknown etiology and is considered to be an autoimmune disease. Autoantibodies are important tools for accurate diagnosis of PBC. Here, we employed serum profiling analysis using a human proteome microarray composed of about 17,000 full-length unique proteins and identified 23 proteins that correlated with PBC. To validate these results, we fabricated a PBC-focused microarray with 21 of these newly identified candidates and nine additional known PBC antigens. By screening the PBC microarrays with additional cohorts of 191 PBC patients and 321 controls (43 autoimmune hepatitis, 55 hepatitis B virus, 31 hepatitis C virus, 48 rheumatoid arthritis, 45 systematic lupus erythematosus, 49 systemic sclerosis, and 50 healthy), six proteins were confirmed as novel PBC autoantigens with high sensitivities and specificities, including hexokinase-1 (isoforms I and II), Kelch-like protein 7, Kelch-like protein 12, zinc finger and BTB domain-containing protein 2, and eukaryotic translation initiation factor 2C, subunit 1. To facilitate clinical diagnosis, we developed ELISA for Kelch-like protein 12 and zinc finger and BTB domain-containing protein 2 and tested large cohorts (297 PBC and 637 control sera) to confirm the sensitivities and specificities observed in the microarray-based assays. In conclusion, our research showed that a strategy using high content protein microarray combined with a smaller but more focused protein microarray can effectively identify and validate novel PBC-specific autoantigens and has the capacity to be translated to clinical diagnosis by means of an ELISA-based method.
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Affiliation(s)
- Chao-Jun Hu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100032, China
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Hu CJ, Zhang XH, Ding QP, Lv T, Ge SP, Zhong P. ‘Ligand-free’ palladium-catalyzed direct C–H bond oxidative acyloxylation of 2-arylpyridines with aromatic carboxylic acids. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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20
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Hu CJ, Zhou L, Zhang J, Huang C, Zhang GM. Immunohistochemical detection of Raf kinase inhibitor protein in normal cervical tissue and cervical cancer tissue. J Int Med Res 2011; 39:229-37. [PMID: 21672326 DOI: 10.1177/147323001103900125] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Raf kinase inhibitor protein (RKIP) may be a suppressor of metastasis: RKIP levels are high in normal tissues, low in primary cancers and lowest or absent in metastatic cancers. This immunohisto chemistry study investigated RKIP protein levels in 250 clinical specimens of human cervical tissue and lymph node metastases (LNM) from 210 patients with normal cervical tissue, cervical intra-epithelial neoplasia (CIN), or cervical cancer with/without LNM. Thirty-nine (86.7%) of the 45 normal-tissue samples were RKIP-positive, six (13.3%) were RKIP-negative; 48/60 (80.0%) CIN samples were positive, 12 (20.0%) were negative; 47/105 (44.8%) cervical cancer tissue samples were positive, 58 (55.2%) were negative; only 7/40 (17.5%) LNM tissue samples were positive, 33 (82.5%) were negative. There was no significant correlation between RKIP positivity and clinical stage, microscopic subtype or pathological differentiation grade. RKIP positivity correlated inversely with LNM. RKIP may play a role in cervical-cancer genesis and metastasis; RKIP down-regulation was associated with metastatic disease in human cervical cancer.
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Affiliation(s)
- C J Hu
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital, Harbin Medical University, Harbin City, China
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Tsai WS, Hu CJ, Shung DP, Lee LM, Wang JT, Kenyon L. First Report of Squash leaf curl Philippines virus Infecting Chayote (Sechium edule) in Taiwan. Plant Dis 2011; 95:1197. [PMID: 30732043 DOI: 10.1094/pdis-04-11-0282] [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: 06/09/2023]
Abstract
Young shoots and leaves of chayote (Sechium edule (Jacq.) Sw.) are commonly consumed as a vegetable in Taiwan. In Hualien County, the major chayote-production area of Taiwan, as much as 15% of chayote plants were not marketable between September and October 2010 because of mosaic symptoms on the leaves. Three symptomatic leaves were collected from each of three fields in Hualien. All nine samples tested positive for a begomovirus by PCR using general primer pair PAL1v1978B/PAR1c715H (3) and negative for Zucchini yellow mosaic virus, Cucumber mosaic virus, Cucumber green mottle mosaic virus, Melon yellow spot virus, Papaya ringspot virus - type W, Watermelon mosaic virus, and Watermelon silver mottle virus by ELISA (2). On the basis of the high nucleotide sequence identity (97.7 to 99.6%) of the 1.5-kb begomoviral DNA-A fragments, all nine samples were considered infected by the same begomovirus species. The 1.5-kb sequences had greatest nucleotide sequence identity (96.6 to 97.8%) with Squash leaf curl Philippines virus (SLCPHV) pumpkin isolate from Taiwan (1) (GenBank Accession No. DQ866135; SLCPHV-TW[TW:Pum:05]). One sample was selected to complete viral genomic DNA analysis. Abutting primer pairs PKA-V/C (PKA-V: 5'-AACGGATCCACTTATGCACGATTTCCCT-3'; PKA-C: 5'-TAAGGATCCCACATGTTGTGGAGCA-3') and PKB-V/C (PKB-V: 5'-TGTCCATGGATTGATGCGTTATCGGA-3'; PKB-C: 5'-TGACCATGGCATTTCCGAGATCTCCCA-3'') were used to amplify the complete DNA-A and DNA-B, respectively. The sequences of DNA-A (GenBank Accession No. JF146795) and DNA-B (GenBank Accession No. JF146796) contain 2,734 and 2,715 nucleotides, respectively. The geminivirus conserved sequence TAATATTAC was found in both DNA-A and -B. The DNA-A has two open reading frames (ORFs) in the virus sense (V1 and V2) and four in the complementary sense (C1 to C4). The DNA-B also had one ORF each in the virus sense (BV1) and the complementary sense (BC1). When compared by BLASTn in GenBank and analyzed by MEGALIGN software (DNASTAR, Madison, WI), they were found to have greatest nucleotide identity (98.0 to 99.0% of DNA-A and 96.7% of DNA-B) with SLCPHV isolates from Taiwan. In addition, SLCPHV caused similar symptoms on leaves when transmitted to healthy chayote by viruliferous whitefly. In Taiwan, SLCPHV has been detected and sequenced from naturally infected melon (GenBank Accession No. EU479710), pumpkin (GenBank Accession No. DQ866135), and wax gourd (GenBank Accession No. EU310406). To our knowledge, this is the first report of SLCPHV infecting chayote plants in Taiwan. The prevalence of SLCPHV infection on different cucurbit crops should be taken into consideration for managing viral diseases in Taiwan. References: (1) W. S. Tsai et al. Plant Dis. 91:907, 2007. (2) W. S. Tsai et al. Plant Dis. 94:923, 2010. (3) W. S. Tsai et al. Online publication. doi: 10.1111/j.1365-3059.2011.02424.x. Plant Pathol., 2011.
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Affiliation(s)
- W S Tsai
- AVRDC - The World Vegetable Center, Shanhua, Tainan, 74151 Taiwan
| | - C J Hu
- Hualien District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, R. O. C., Jian, Hualien, 97365 Taiwan
| | - D P Shung
- Hualien District Agricultural Research and Extension Station, Council of Agriculture, Executive Yuan, R. O. C., Jian, Hualien, 97365 Taiwan
| | - L M Lee
- AVRDC - The World Vegetable Center, Shanhua, Tainan, 74151 Taiwan
| | - J T Wang
- AVRDC - The World Vegetable Center, Shanhua, Tainan, 74151 Taiwan
| | - L Kenyon
- AVRDC - The World Vegetable Center, Shanhua, Tainan, 74151 Taiwan
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Abstract
Primary biliary cirrhosis (PBC) is a chronic, progressive, cholestatic, organ-specific autoimmune disease of unknown etiology. It predominantly affects middle-aged women, and is characterized by autoimmune-mediated destruction of small- and medium-size intrahepatic bile ducts, portal inflammation and progressive scarring, which without proper treatment can ultimately lead to fibrosis and hepatic failure. Serum autoantibodies are crucial tools for differential diagnosis of PBC. While it is currently accepted that antimitochondrial antibodies are the most important serological markers of PBC, during the last five decades more than sixty autoantibodies have been explored in these patients, some of which had previously been thought to be specific for other autoimmune diseases.
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He C, Zhang SL, Hu CJ, Tong DW, Li YZ. Higher levels of CCL20 expression on peripheral blood mononuclear cells of chinese patients with inflammatory bowel disease. Immunol Invest 2010; 39:16-26. [PMID: 20064082 DOI: 10.3109/08820130903380732] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This study aimed at characterizing the levels of CCL20 mRNA transcripts in peripheral mononuclear blood cells (PMBC) of 56 Chinese patients with inflammatory bowel disease (IBD), 30 other intestinal diseases and 30 healthy controls by quantitative real time polymerase chain reaction. The levels of CCL20 mRNA transcripts in PBMC of patients with IBD were significantly higher than that of patients with non-IBD intestinal diseases and healthy controls (p < 0.01) and the CCL20 expression in active IBD patients was significantly higher than that in remission patients (p < 0.01). Importantly, the levels of CCL20 expression in PBMC were significantly correlated with the degrees of disease severity, the levels of erythrocyte sedimentation rate and C-reaction protein, but not hemoglobin, in patients with IBD (p < 0.01). Furthermore, the levels of CCL20 expression in active IBD patients after treatment with salazosulphapyridine or prednisone were significantly reduced, as compared with before treatment (p < 0.01). Therefore, analysis of CCL20 expression in PBMC may be used as a surrogate measure for evaluation of IBD activity, disease progression and therapeutic efficacy in Chinese IBD patients.
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Affiliation(s)
- Chun He
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
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Zhang R, Lü H, Qian JM, Li YZ, Hu CJ. [A pilot study of protein fingerprinting in brain-gut interaction model of irritable bowel syndrome.]. Zhonghua Nei Ke Za Zhi 2010; 49:134-137. [PMID: 20356511] [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: 05/29/2023]
Abstract
OBJECTIVE Matrix-assisted laser desorption ionization-time of might-mass spectrometry (MALDI-TOF-MS) was utilized to analyze the protein fingerprint in brain-gut interaction of irritable bowel syndrome (IBS) model rats' colon, so as to find the clues for IBS. METHODS Fourteen healthy male adult Wistar rats were selected and divided into a control and a chronic and acute stress (CAS) group. Colon motility, visceral sensation and behavior changes of rats were detected to evaluate the model. MALDI-TOF-MS was used to observe the overall view of protein in colon so as to study whether there are abnormalities of protein levels in IBS. RESULTS As compared with those in the control group, the number of fecal pellets [(6.00 +/- 1.69) pellets/1 h vs (1.14 +/- 0.69) pellets/1 h, P < 0.01] and frequency of abdominal contraction induced by colorectal distention (CRD) increased, while the amount of weight gain [(298.88 +/- 18.61) g vs (348.00 +/- 12.44) g, P < 0.01] and consumption of sucrose solutions [(13.63 +/- 1.69) ml/1 h vs (19.00 +/- 3.06) ml/1 h, P < 0.05] decreased in the CAS group (P < 0.05). As far as protein/peptide quality different peak was concerned, CAS rats had 12 different peaks compared with the control rats. The different proteins could be divided into 4 types, which were related to iron secretion, protein synthesis, G protein system and immunity. The protein levels of the model group were higher than those in the control group (P < 0.05). CONCLUSIONS The CAS rats integrate the major characteristics of IBS such as altered colon motility, higher visceral hypersensitivity and psychiatric disorder and can mimic the brain-gut interaction of IBS partly. The detection of differential proteins provides reference for the pathogenesis and treatment of IBS.
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Affiliation(s)
- Ru Zhang
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
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25
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Abstract
OBJECTIVE To investigate the associations of cytochrome p450 1A1 (CYP1A1) gene polymorphisms with susceptibility to psoriatic arthritis in Taiwan. METHODS CYP1A1 gene polymorphisms were determined in 52 patients with psoriatic arthritis and in 90 healthy controls by polymerase chain reaction/restriction fragment length polymorphism. RESULTS The genotype frequency of CYP1A1 4889A/G was significantly increased in patients with psoriatic arthritis in comparison with healthy controls. The phenotype frequency of CYP1A1 4889G was also significantly increased in patients with psoriatic arthritis. The genotype frequency of CYP1A1 4887C/A was significantly higher in patients with psoriatic arthritis than in controls. The allele and phenotype frequencies of 4887A were also significantly increased in patients with psoriatic arthritis. We also found that the association of CYP1A1 4887A with psoriatic arthritis was independent of 4889G but a synergistic effect was present between CYP1A1 4887A and 4889G. The CYP1A1 4889A/G and 4887C/A polymorphisms were not associated with the manifestations and severity of psoriatic arthritis. CONCLUSION CYP1A1 4887A and 4889G may be precipitating factors for susceptibility to psoriatic arthritis in Taiwan. An additive effect was found between CYP1A1 4887A and 4889G.
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Affiliation(s)
- J H Yen
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan, ROC.
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26
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Wang QT, Li YZ, Liang YF, Hu CJ, Zhai YH, Zhao GF, Zhang J, Li N, Ni AP, Chen WM, Xu Y. Construction of A Multiple Myeloma Diagnostic Model by Magnetic Bead-Based MALDI-TOF Mass Spectrometry of Serum and Pattern Recognition Software. Anat Rec (Hoboken) 2009; 292:604-10. [PMID: 19301277 DOI: 10.1002/ar.20871] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Li YZ, Hu CJ, Leng XM, Zhao GF, Li N, Xu Y. Promising Diagnostic Biomarkers for Primary Biliary Cirrhosis Identified With Magnetic Beads and MALDI-TOF-MS. Anat Rec (Hoboken) 2009; 292:455-60. [PMID: 19248174 DOI: 10.1002/ar.20870] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Yuan RY, Sheu JJ, Yu JM, Chen WT, Tseng IJ, Chang HH, Hu CJ. Botulinum toxin for diabetic neuropathic pain: a randomized double-blind crossover trial. Neurology 2009; 72:1473-8. [PMID: 19246421 DOI: 10.1212/01.wnl.0000345968.05959.cf] [Citation(s) in RCA: 164] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Diabetic neuropathy is a common complication in diabetes, with patients typically experiencing diverse sensory symptoms including dysesthesias in the feet and usually accompanied by sleep disturbance. There is still no comprehensive understanding of the underlying biologic processes responsible for diabetic neuropathic pain. Thus, the current symptomatic therapy remains unsatisfactory. Recent experimental evidence suggests that botulinum toxin type A (BoNT/A) may not only inhibit the release of acetylcholine at the neuromuscular junctions, but also modulate afferent sensory fiber firing, thereby relieving neuropathic pain. METHODS A double-blind crossover trial of intradermal BoNT/A for diabetic neuropathic pain in 18 patients was conducted to evaluate the effectiveness. RESULTS We find significant reduction in visual analog scale (VAS) of pain by 0.83 +/- 1.11 at 1 week, 2.22 +/- 2.24 at 4 weeks, 2.33 +/- 2.56 at 8 weeks, and 2.53 +/- 2.48 at 12 weeks after injection in the BoNT/A group, as compared to the respective findings for a placebo group of 0.39 +/- 1.18, -0.11 +/- 2.04, 0.42 +/- 1.62, and 0.53 +/- 1.57 at the same timepoints (p < 0.05). Within the BoNT/A group, 44.4% of the participants experienced a reduction of VAS >/=3 within 3 months after injection, whereas there was no similar response in the placebo group. At the 4-week postinjection stage, improvement in sleep quality was measured using the Chinese version of the Pittsburgh Sleep Quality Index. CONCLUSIONS This pilot study found that botulinum toxin type A significantly reduced diabetic neuropathic pain and transiently improved sleep quality. Further large-scaled study is warranted.
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Affiliation(s)
- R Y Yuan
- Department of Neurology, Taipei Medical University Hospital and Shuang Ho Hospital, 252 Wu-Hsing Street, Taipei 110, Taiwan
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Tong DW, Zhang SL, Li YZ, Hu CJ. [The comparison of the three anti-dsDNA antibody detecting test]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2009; 23:74-75. [PMID: 19799026] [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: 05/28/2023]
Abstract
OBJECTIVE To compare the three Anti-dsDNA antibody detecting test (IIF, ELISA, Farr) with 200 serum samples to evaluate which one has higher sensitivity and specificity. METHODS 200 serum samples including 120 serum samples of SLE, 20 serum samples of rheumatoid arthritis, 20 serum samples of MCTD, 20 serum samples of SS, 20 serum samples of PSS and 50 serum samples of healthy measured by IIF, Farr and ELISA. RESULTS Detection the Anti-dsDNA antibody of the serum sample with the methods of IIF, ELISA and Farr. The positive percentage of Anti-dsDNA in SLE is 25%, 32% and 32%, while in RA is 0, 0 and 0; in PSS is 0, 0 and 5%; in SS is 0, 0 and 0; in healthy is 0, 0 and 0. CONCLUSION Detection the Anti-dsDNA antibody with two method in the same time, especially with IIF and ELISA, will heighten the positive rate than with single method and will be helpful for the diagnosis of SLE.
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Affiliation(s)
- Da-Wei Tong
- Clinical Laboratory of Peking Union Medical College Hospital, Beijing 100073, China.
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Luan FM, Ge CL, Ma N, Li YZ, Hu CJ, Li N. [The contribution for the diagnosis of the tumor-like polypoid lesions of the gallbladder by SELDI-TOF-MS]. Zhonghua Wai Ke Za Zhi 2008; 46:525-527. [PMID: 18785564] [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: 05/26/2023]
Abstract
OBJECTIVE To detect the serum specific proteins in tumor-like polypoid lesions of the gallbladder patients and establish diagnostic model. METHODS Surface enhanced laser desorption/ionization time of flight mass spectrometry (SELDI-TOF-MS) technique and WCX Magnetic Beads were used to detect the serum proteomic patterns of 23 patients with tumor-like PLG, 21 patients with non tumor-like PLG and 26 normal persons. Biomarker Wizard and Biomarker Patterns Software were used in combination to analyze the data. RESULTS Preliminary screening out 22 representative specific proteins for the diagnosis of the tumor-like PLG. Analysis system under the conditions set selected 3 specific proteins to establish diagnostic model for the tumor-like PLG. The sensitivity and specificity of the model for the diagnosis of the tumor-like PLG were 100% and 89.4%, respectively. CONCLUSION SELDI-TOF-MS technique can select specific protein of the tumor-like PLG, and establish diagnostic model of the tumor-like PLG.
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Affiliation(s)
- Feng-Ming Luan
- Department of General Surgery, First Affiliated Hospital of China Medical University, Shenyang 110001, China
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Hu CJ, Li YZ, Zhao GF, Li N, Xu Y, Tong DW, Zhang SL. Screening for specific biomarkers in serum for diagnosis of primary biliary cirrhosis using proteomic fingerprint technology. Shijie Huaren Xiaohua Zazhi 2008; 16:277-283. [DOI: 10.11569/wcjd.v16.i3.277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To screen for the potential protein biomarkers in serum for the diagnosis of primary biliary cirrhosis (PBC) using proteomic fingerprint technology.
METHODS: Proteomic fingerprint technology combining magnetic beads with MALDI-TOF-MS was used to profile and compare the serum proteins from 44 patients with PBC, 32 patients with other hepatic diseases and 43 healthy blood donors. Proteomic patterns associated with PBC were identified by Biomarker Patterns Software. Model of biomarkers was constructed and evaluated using the Biomarker Patterns Software.
RESULTS: A total of 69 discriminating m/z peaks were identified that were related to PBC (P < 0.05). The model of biomarkers constructed by the Biomarker Patterns Software based on the four biomarkers (3445, 4260, 8133 and 16290) generated excellent separation between the PBC and control groups. The sensitivity was 93.3% and the specificity was 95.1%. Blind test data indicated a sensitivity of 92.9% and a specificity of 82.4%.
CONCLUSION: Biomarkers for PBC can be discovered in serum by MALDI-TOF-MS combining the use of magnetic beads. The pattern of combined markers provides a powerful and reliable diagnostic method for PBC with a high sensitivity and specificity.
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Li YZ, Hu CJ, Tong DW, Zhang SL, Liu DH. Relations of peripheral blood CD11c + and CD123 + dendritic cells with hepatic injury in patients with primary biliary cirrhosis. Shijie Huaren Xiaohua Zazhi 2006; 14:341-345. [DOI: 10.11569/wcjd.v14.i3.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the levels of CD11c+ and CD123+ dendritic cells in the peripheral blood and their associations with hepatic injury in patients with primary biliary cirrhosis (PBC).
METHODS: The percentages of CD11c+ and CD123+ dendritic cells in the peripheral blood from patients with PBC (n = 40), other hepatic diseases (n = 40) and normal individuals (n = 30) were measured by flow cytometry.
RESULTS: The levels of CD11c+ and CD123+ dendritic cells in patients with PBC were significantly lower than that in normal controls (0.087 2 ± 0.008 2 vs 0.169 0 ± 0.011 3, P <0.01; 0.034 9 ± 0.004 9 vs 0.064 3 ± 0.005 4, P <0.01). The ratios of CD11c+ and CD123+ dendritic cells in patients with severe hepatic injury were markedly lower in comparison with that of patients without severe hepatic injury (0.071 6 ± 0.007 3 vs 0.124 2± 0.009 4, P <0.01; 0.042 6 ± 0.005 9 vs 0.061 7 ± 0.006 1, P <0.01). Furthermore, PBC patients with AMA-M2 positive had statistically lower levels of CD11c+ and CD123+ in peripheral blood than those with AMA-M2 negative did (0.076 1 ± 0.005 1 vs 0.096 5 ± 0.008 3, P <0.05; 0.046 6 ± 0.006 9 vs 0.063 1 ± 0.005 7, P <0.05). Dynamically, we found the levels of CD11c+ and CD123+ dendritic cells in the same PBC patients were increased after treatment, while CD123+ dendritic cells was notably increased (0.058 3 ± 0.004 9 vs 0.032 1 ± 0.004 1, P <0.01).
CONCLUSION: The levels of peripheral blood CD11c+ and CD123+ dendritic cells in patients with PBC are correlated with hepatic injury and serum anti-AMA-M2 antibody production. The dendritic cell subtypes CD11c+ and CD123+, especially CD123+, may play crucial roles in the pathogenesis and progression of hepatic injury.
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Chiu WT, Lin PW, Chiou HY, Lee WS, Lee CN, Yang YY, Lee HM, Hsieh MS, Hu CJ, Ho YS, Deng WP, Hsu CY. Infrared thermography to mass-screen suspected SARS patients with fever. Asia Pac J Public Health 2005; 17:26-8. [PMID: 16044829 DOI: 10.1177/101053950501700107] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Fever greater than 38 degrees C is a cardinal sign of patients with the severe acute respiratory syndromes (SARS). To reduce the risk of nosocomial cross infections, screening all patients and visitors who visit hospitals and clinics for fever at the entrance of every hospital building has become a standard protocol in Taiwan during the SARS epidemic from mid-April to mid-June 2003. We used a digital infrared thermal imaging (DITI) system (Telesis Spectrum 9000 MB) to conduct mass screening of patients and visitors who entered the hospital to identify those with fever. The DITI system has two components: a sensor head and a PC imaging workstation. The sensor head is an optic-mechanical device which consists of imagining optics for focusing the infrared source information on the infrared detector. The infrared images are further converted into electrical signals, which are then processed for real-time display on the monitor. During the period from April 13 to May 12 2003, 72,327 outpatients and visitors entered Taipei Medical University-Wan Fang Hospital, Taipei, Taiwan. A total of 305 febrile patients (0.42%) was detected by infrared thermography. Among them, three probable SARS patients were identified after thorough studies including contact history, laboratory tests and radiology examinations. The findings suggests that infrared thermography was an effective and reliable tool ideal for mass-screening patients with fever in the initial phase of screening for SARS patients at a busy hospital which sees approximately 3,000 outpatients every weekday during the SARS epidemic.
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Affiliation(s)
- W T Chiu
- Department of Neurosurgery, Taipei Medical University, Wan Fang Hospital.
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Simon MC, Ramirez-Bergeron D, Mack F, Hu CJ, Pan Y, Mansfield K. Hypoxia, HIFs, and cardiovascular development. Cold Spring Harb Symp Quant Biol 2003; 67:127-32. [PMID: 12858533 DOI: 10.1101/sqb.2002.67.127] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- M C Simon
- Howard Hughes Medical Institute, Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA
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Abstract
PU.1(+/-)Spi-B(-/-) mice exhibit reduced numbers of immature and mature B lymphocytes, which exhibit severe defects in response to BCR-mediated stimulation and poor survival. We found that expression of c-rel, a member of the Rel/NF-kappa B family, is dramatically reduced in PU.1(+/-)Spi-B(-/-) splenic B cells. Analysis of the murine c-rel promoter identified three PU.1/Spi-B binding sites critical for c-rel promoter activity. Furthermore, reintroduction of Rel protein restored wild-type B cell numbers to mice reconstituted with PU.1(+/-)Spi-B(-/-) bone marrow. These findings are the first to demonstrate that a member of the Rel/NF-kappa B family is directly regulated by Ets proteins and dissect the molecular basis for the function of two Ets factors, PU.1 and Spi-B, in promoting B lymphocyte survival.
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Affiliation(s)
- C J Hu
- Abramson Family Cancer Research Institute, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
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36
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Abstract
BACKGROUND AND PURPOSE Oxidative damage of mitochondrial DNA (mtDNA) in the ischemic brain is expected after ischemia/reperfusion injury. A recent study demonstrated limited patterns of mtDNA deletion in the brain after ischemia/reperfusion. We studied the ischemia/reperfusion-induced global changes of mtDNA integrity and its restoration in a rat model of transient focal ischemia in vivo. METHODS Changes in mtDNA content in the ischemic brain were assessed with the use of a rat stroke model featuring transient severe ischemia confined to the cerebral cortex of the right middle cerebral artery territory for 30 or 90 minutes. A new long polymerase chain reaction method, using mouse DNA as an internal standard, was applied to measure the relative content of intact rat mtDNA. Southern hybridization following alkaline gel electrophoresis was conducted in a parallel study to confirm long polymerase chain reaction results. RESULTS A reduction in mtDNA content was found after ischemia for 30 and 90 minutes. The mtDNA was restored to near nonischemic levels 24 hours after 30- but not 90-minute ischemia. CONCLUSIONS These results confirm that ischemia/reperfusion causes mtDNA damages. Restoration of the mtDNA content to nonischemic levels after 30-minute ischemia raises the possibility that mtDNA repair or repletion occurs after brief ischemia.
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Affiliation(s)
- H Chen
- Center for the Study of Nervous System Injury and Department of Neurology, Washington University School of Medicine, St Louis, MO 63110, USA
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37
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Abstract
Mutations of the telomeric survival motor neuron gene (SMN1) are related to spinal muscular atrophy (SMA). However, no phenotype-genotype correlation has been observed since the SMN1 gene is lacking in the majority of patients affected with either the severe form (type I) or the milder forms (types II and III). Here, we analyze the SMN, NAIP and P44 genes in 132 Chinese SMA patients and their families. At least three types of normal allele, and four types of mutant allele were found in this study. The combination of one normal allele with one mutant allele resulted in carriers of different types, and the combination of different mutant alleles accounted for the different genotypes among different types of SMA. Deletions of mutant alleles can be further subgrouped into four types, which includes involving SMN1, SMN1 and NAIP(T) (telomeric portion of NAIP gene), SMN1 and NAIP(T) and P44(T) (telomeric portion of P44 gene), and SMN1 and SMN2 (centromeric portion of SMN gene). Some of the severe (type I) SMA cases correlated with the extent of deletions in the SMN, NAIP and P44 genes or the dosage of SMN gene when both SMN1 and SMN2 are deleted. We also found two novel point mutations, an A insertion at codon 8 (AGT-->AAGT) and an A substitution at codon 228 (TTA-->TAA).
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Affiliation(s)
- C H Tsai
- Department of Medical Research, China Medical College Hospital, 2 Yuh Der Road, Taichung, Taiwan
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38
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Lu CS, Ren XM, Hu CJ, Zhu HZ, Meng QJ. The inclusion compound of a new ionizable derivative of beta-cyclodextrin with ferrocenium drug. Chem Pharm Bull (Tokyo) 2001; 49:818-21. [PMID: 11456085 DOI: 10.1248/cpb.49.818] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A new beta-cyclodextrin (beta-CD) derivative, mono[6-deoxy-6-(2-butenedinitrile-2,3-dimercapto sodium salt)]-beta-CD (6-mnt-beta-CD), and its inclusion compound with a ferrocenium drug, have been prepared and characterized by IR, UV, 13C-NMR spectroscopy, and mass spectrometry, elemental analysis, thermogravimetry, and cyclic voltammetry (CV). The interplay between the side-arm anion of beta-CD and the ferrocenium (guest) in the inclusion compound 6-mnt-beta-CD-/Fc+ has been investigated by 13C-NMR, UV, IR, and thermogravimetric methods. Charge transfer from the anion to the cation in 6-mnt-beta-CD-/Fc+ was then experimentally identified. The interaction between the guest and the host with side-arm in 6-mnt-beta-CD-/Fc+ resulted in smaller positive potential shifts compared to that in the inclusion compound [beta-CD/Fc+]BF4-.
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Affiliation(s)
- C S Lu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, PR China
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39
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Abstract
To evaluate the genetic factors for AD among a Chinese population in Taiwan, we studied the polymorphisms of six candidate genes of Alzheimer's disease (AD), including the regulatory region of apolipoprotein E (Apo-E, G-186T), the promoter of apolipoprotein E (Apo-E, A-491T), the bleomycin hydrolase gene (BH, A1450G), a mutation of alpha(2)-macroglobulin gene (A2M G2998A), low-density lipoprotein receptor-related protein gene (LRP, C766T), and alpha(1)-antichymotrypsin gene (ACT, -15Ala/Thr) in AD patients and non-affected elder individuals among Taiwanese Chinese. Eighty-two AD patients and 110 non-affected individuals were recruited for this study. We used polymerase chain reaction (PCR) and restriction enzyme digestion to identify their genotypes. The statistical examination was performed by combining the results of our previous reports - apolipoprotein E epsilon4 (ApoE-4), presenilin-1 intronic polymorphism (PS-1, allele 1/2), and the five-nucleotide deletion of alpha(2)-macroglobulin gene (A2M). Among these nine candidate genes of AD, the ApoE-4 allele is the only independent genetic risk factor for AD. The other candidate genes in this study were not associated with the occurrence of AD. In addition, there are no gene-gene interactions.
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Affiliation(s)
- C J Hu
- Department of Neurology, Molecular Medicine, Taipei Municipal Jen-Ai Hospital, Taipei, Taiwan
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40
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Abstract
The role of genetics in Parkinson's disease (PD), previously controversial, is now documented by several studies. A major breakthrough has been the discovery of two single-gene defects in familial PD. A single base pair change at position 209 from G to A (G209A) in the fourth exon of the alpha-synuclein gene has been identified in cases of autosomal dominant familial PD. Mutations in the Parkin gene can induce autosomal recessive juvenile parkinsonism. A polymorphism of R/W366 in the Parkin gene was found to be associated with a protective factor for sporadic PD. We surveyed the polymorphisms of the Parkin gene, including S/N167, R/W366 and V/L380, in 92 cases of sporadic PD and 98 nonaffected individuals in Taiwanese Chinese. The allele frequencies of these polymorphisms are not significantly different between PD and nonaffected controls. We conclude that polymorphisms of the Parkin gene, S/N167, R/W366, V/L380, are not genetic factors for sporadic PD among Chinese in Taiwan.
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Affiliation(s)
- C J Hu
- Department of Neurology, Taipei Municipal Jen-Ai Hospital, Taichung, Taiwan
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41
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Abstract
The role of genetics in Parkinson's disease (PD), previously controversial, is now supported by several studies. A major breakthrough has been the discovery of a single gene defect in familial Parkinson's disease. A single base pair change at position 209 from G to A (G209A) in the fourth exon of the alpha-synuclein gene has been identified in cases of familial PD. We looked for this mutation in 65 cases of sporadic PD in Taiwan Chinese patients but found none of these patients with this mutation. We conclude that mutation of G209A in the alpha-synuclein gene plays no role in sporadic PD among Taiwan Chinese.
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Affiliation(s)
- C J Hu
- Department of Neurology, Taipei Municipal Jen-Ai Hospital, Taipei, Taiwan
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Xia JS, Guo DL, Zhang Y, Zhou ZN, Zeng FD, Hu CJ. Inhibitory effects of dauricine on potassium currents in guinea pig ventricular myocytes. Acta Pharmacol Sin 2000; 21:60-4. [PMID: 11263249] [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: 02/19/2023] Open
Abstract
AIM To study the effects of dauricine(Dau) on the rapidly activating component (IKr), the slowly activating component (IKs) of the delayed rectifier potassium current, and the inward rectifier potassium current (IKl) in guinea pig ventricular myocytes. METHODS Single myocytes were dissociated by enzymatic dissociation method. The currents were recorded with the whole-cell configuration of the patch-clamp technique. RESULTS (1) Dau 1, 3, 10, 30, and 100 mumol.L-1 blocked IKr and tail current (IKr-tail) in a concentration-dependent manner. The IC50 for block of IKr-tail was 16 (95% confidence limits: 13-22) mumol.L-1. The time constant of IKr-tail deactivation was (140 +/- 38) ms in the control and (130 +/- 26) ms in the presence of Dau 30 mumol.L-1 (n = 6 cells from 3 animals, P > 0.05). (2) Dau 1-100 mumol.L-1 produced concentration-dependent blocks of IKs and tail current (IKs-tail). The IC50 value for block of IKs-tail was 33 (95% confidence limits: 24-46) mumol.L-1. The time constant of IKs-tail deactivation was (92 +/- 18) ms in the control and (84 +/- 16) ms in the presence of Dau 30 mumol.L-1 (n = 8 cells from 4 animals, P > 0.05). (3) Addition of Dau 30 mumol.L-1 induced block of IKs and IKs-tail (n = 7 cells from 3 animals). The degree of block of IKs and IKs-tail depended on test potentials, increasing with more positive depolarizations. (4) Dau 20 mumol.L-1 blocked mainly inward component of IKl and reduced the reversal potential from -72 mV (control) to -78 mV (n = 6 cells from 3 animals). CONCLUSION (1) Dau inhibited IKs, but not the process of IKs deactivation. (2) Dau blocked IKr, but not the process of deactivation. (3) Dau had a blocking effect on IKl.
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Affiliation(s)
- J S Xia
- Department of Clinical Pharmacology, Tongji Medical University, Wuhan 430030, China.
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43
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Lu CS, Hu CJ, Yu Y, Meng QJ. The inclusion compounds of beta-cyclodextrin with 4-substituted benzoic acid and benzaldehyde drugs studied by proton nuclear magnetic resonance spectroscopy. Chem Pharm Bull (Tokyo) 2000; 48:56-9. [PMID: 10705476 DOI: 10.1248/cpb.48.56] [Citation(s) in RCA: 16] [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: 11/22/2022]
Abstract
Inclusion compounds of some 4-substituted benzoic acid and benzaldehyde drugs with beta-cyclodextrin were prepared and characterized by IR spectroscopy, powder X-ray diffraction, thermogravimetry, and 1H-NMR spectroscopy. The thermal stability and chemical stability of these drugs were strikingly improved after inclusion. The effect of inclusion on the chemical-shifts of protons H-3 and H-5 in the NMR spectroscopy is discussed. Using the relative shift theory, the preferred inclusion mode was proposed. The center of the aromatic ring of the drug molecule was considered to be located in the cavity 1.2 A inside from the H-5 plane of beta-cyclodextrin.
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Affiliation(s)
- C S Lu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, P. R. China
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44
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Hu CJ, Kato A, Bowman MC, Kiyotani K, Yoshida T, Moyer SA, Nagai Y, Gupta KC. Role of primary constitutive phosphorylation of Sendai virus P and V proteins in viral replication and pathogenesis. Virology 1999; 263:195-208. [PMID: 10544094 DOI: 10.1006/viro.1999.9953] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Functional analysis of the primary constitutive phosphorylation of Sendai virus P and V proteins was performed using both in vitro and in vivo systems. Sendai virus minigenome transcription and replication in transfected cells were not significantly affected in the presence of primary phosphorylation deficient P protein (S249A, S249D, P250A) as measured by either the luciferase activity or the Northern blot analysis. Similarly, recombinant Sendai viruses lacking the primary phosphorylation in P grew to titers close to the wild-type virus in cell cultures and in the natural host of Sendai virus, the mouse. Mutant viruses showed no altered pathogenesis in mice lungs. Oligomerization of P by binding WT P or mutant P to GST-P (WT) Sepharose beads revealed that the primary phosphorylation was not crucial for P protein oligomerization. Similar to P protein primary phosphorylation, the V protein primary phosphorylation at serine249 was not essential for minigenome transcription and replication, as both WT and mutant V proteins were found equally inhibitory to the minigenome replication. These results show that the primary phosphorylation of P protein has no essential role in Sendai virus transcription, replication, and pathogenesis.
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Affiliation(s)
- C J Hu
- Department of Immunology/Microbiology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, Illinois 60612, USA
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45
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Chang JG, Yang TY, Liu TC, Lin TP, Hu CJ, Kao MC, Wang NM, Tsai FJ, Peng CT, Tsai CH. Molecular analysis of secretor type alpha(1,2)-fucosyltransferase gene mutations in the Chinese and Thai populations. Transfusion 1999; 39:1013-7. [PMID: 10533829 DOI: 10.1046/j.1537-2995.1999.39091013.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [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: 11/20/2022]
Abstract
BACKGROUND The human Lewis histo-blood group system belongs to a family of structurally related oligosaccharides. The mutations of fucosyltransferase genes alpha(1,2)-fucosyltransferase (FUT2 or Se) and alpha(1,3/1,4)-fucosyltransferase (FUT3 or Le), are responsible for the polymorphism of Lewis blood group phenotypes. However, a population study of the FUT2 mutation in Chinese and Thais has not yet been done, and there is some controversy about the phenotypes of Le(a+b+) and Le(a+b-). STUDY DESIGN AND METHODS One hundred twentyfour Chinese and 70 Thais were phenotyped for Lea and Le(b). DNA samples were studied by polymerase chain reaction and then by a restriction enzyme digestion method to distinguish wild-type and six known mutations. Direct sequencing was done for controls and some uncertain cases. RESULTS A new mutation, C302T mutation, was found in 2 of 136 chromosomes in the Thai population; none were discovered in Chinese. The frequencies of the normal and six mutant alleles among Chinese and Thais, respectively, were as follows: 134 (54.0%) of 248 and 58 (41.4%) of 140 were wild-type (Se); 0 of 248 and 2 of 140 (both 1.4%) had the G428A mutation; 120 (48.4%) of 248 and 75 (53.6%) of 140 had the A385T mutation; 2 (0.81%) of 248 and 0 of 140 had the C571T mutation; and 1 (0.4%) of 248 and 3 (2.2%) of 140 had the G849A mutation. Only 1 Chinese (0.4%) of 248 had the C628T mutation, and none had fusion gene mutation. CONCLUSION The FUT2 genes encoding for the phenotypes Le(a+b+) and Le(a+b-) are the same. The function and character of the mutant enzyme may play an important role in the phenotype. The methods used in this study are clinically applicable in population studies of the FUT2 gene polymorphism to explore relationships among different ethnic groups and correlations between phenotype and genotype.
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Affiliation(s)
- J G Chang
- Department of Medical Research and Pediatrics, China Medical College Hospital, Taichung, Taiwan.
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46
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Hu CJ, Sung SM, Liu HC, Lee KY, Hsu WC, Wong WK, Lee CC, Tsai CH, Chang JG. No association of alpha-2 macroglobulin gene five-nucleotide deletion with AD in Taiwan Chinese. Neurology 1999; 53:642-3. [PMID: 10449138 DOI: 10.1212/wnl.53.3.642] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The alpha-2 macroglobulin five-nucleotide deletion (A2M-2) allele frequency was not significantly higher in the AD group than the control group (0.062 versus 0.101, p > 0.1). The odds ratio for AD in individuals with the A2M-2 allele was 0.582 (95% CI, 0.25 to 1.40). These results do not support the association between A2M-2 and AD in the Chinese population, although the allele frequency of A2M-2 is lower than that found in the Caucasian population. Therefore, A2M-2 might not be a significant risk factor of AD among Taiwan Chinese.
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Affiliation(s)
- C J Hu
- Department of Neurology, China Medical College Hospital, Taiwan
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47
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Abstract
We used linkage analysis, non-isotope SSCP (single-strand conformation polymorphism) and PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) for prenatal diagnosis of spinal muscular atrophy (SMA). A total of 26 cases from 20 SMA families (16, type 1 and 4) were evaluated. 5 out of 26 fetuses were affected and, following genetic counselling, the parents decided to terminate the pregnancies. Aborted fetal tissues were examined and the diagnosis was confirmed in each case. The 21 unaffected cases were either normals (12 cases) or carriers (9 cases). These children have been followed for six months to two and a half years. No false-negative or false-positive results on prenatal testing were found. We conclude that prenatal diagnosis of SMA is reliable and accurate.
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Affiliation(s)
- S P Lin
- Department of Medical Research, China Medical College Hospital, Taichung, Taiwan, ROC
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48
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Hu CJ, Baglia FA, Mills DC, Konkle BA, Walsh PN. Tissue-specific expression of functional platelet factor XI is independent of plasma factor XI expression. Blood 1998; 91:3800-7. [PMID: 9573017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Platelet factor XI is an alternatively spliced product of the factor XI gene expressed specifically within megakaryocytes and platelets as an approximately 1.9-kb mRNA transcript (compared with approximately 2.1 kb in liver cells) lacking exon V. Flow cytometry with an affinity-purified factor XI antibody, with PAC1 antibody (to the GPIIb/IIIa complex on activated platelets), and with S12 antibody (to P-selectin, an alpha-granule membrane protein expressed on the platelet surface during secretion) on platelets activated with ADP, thrombin, thrombin receptor peptide (SFLLRN amide), or collagen at various concentrations exposed platelet factor XI and PAC1 antibody binding in parallel. Unactivated platelets expressed approximately 40% of total platelet factor XI but no PAC1 binding sites. Enhanced membrane exposure of platelet factor XI is independent of alpha-granule secretion, because ADP and collagen exposed platelet factor XI but no S12 binding sites. Platelets from four patients with plasma factor XI deficiency (<0.04 U/mL) had normal constitutive and activation-dependent expression of platelet factor XI. Well-washed platelets from normal and from factor XI-deficient donors incubated with low concentrations of thrombin (0. 05 to 0.1 U/mL) corrected the clotting defect observed with factor XI-deficient plasma. Thus, functionally active platelet factor XI is differentially expressed on platelet membranes in a tissue-specific manner both constitutively and in a concentration-dependent fashion by various agonists in the absence of detectable plasma factor XI.
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Affiliation(s)
- C J Hu
- Departments of Biochemistry and Medicine, The Sol Sherry Thrombosis Research Center, Temple University School of Medicine, Philadelphia, PA, USA
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Hu CJ, Sung SM, Liu HC, Chang JG. Association of apolipoprotein E genotype and intronic polymorphism of the presenilin-1 gene with Alzheimer's disease in elderly Taiwan Chinese. J Neurol Sci 1998; 157:158-61. [PMID: 9619639 DOI: 10.1016/s0022-510x(98)00052-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We studied the apoliprotein E (apo-E) allele frequencies and intronic polymorphism of the presenilin-1 (PS-1) gene in 55 patients with late-onset Alzheimer's disease (AD) and 93 age- and sex-matched controls. The apoE epsilon4 allele frequency was significantly higher in the AD group than in the control group (0.255 versus 0.070, P<0.0001). The odds ratio for AD in individuals with either one or two epsilon4 alleles was 5.22 (95% confidence interval: 2.32-11.70). The polymorphism within the region composing intron 3' to exon 8 of the PS-1 gene showed a similar distribution between AD patients and controls. This is the first study on the intronic polymorphism of the PS-1 gene in Chinese. Our results support an association between apoE epislon4 and AD in Chinese, but not between the intronic polymorphism of the PS-1 gene and AD. However, the allele frequency of apo-E epsilon4 among Chinese is lower than that among Caucasians. The interaction between apo-E and PS-1 genotypes is still unclear.
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Affiliation(s)
- C J Hu
- The Department of Neurology, Taipei Municipal Jen-Ai Hospital, Taiwan
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50
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Chang JG, Jong YJ, Wang WP, Wang JC, Hu CJ, Lo MC, Chang CP. Rapid detection of a recombinant hotspot associated with Charcot-Marie-Tooth disease type IA duplication by a PCR-based DNA test. Clin Chem 1998; 44:270-4. [PMID: 9474023] [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: 02/06/2023]
Abstract
A 1.5-Mb duplication on chromosome 17p11.2-p12 (CMT1A duplication) caused by a misalignment of the CMT1A repeat sequences (CMT1A-REPs) is associated with Charcot-Marie-Tooth disease type 1A (CMT1A). A hotspot of crossover breakpoints located in a 3.2-kb region of the CMT1A-REPs accounts for three-quarters of the rearrangements in CMT1A patients. We developed a PCR-based diagnostic method to detect a recombination hotspot associated with the CMT1A duplication. Thirty-one CMT1A Chinese patients from different families and 50 healthy people over 65 years of age were studied. Twenty-seven of the 31 cases demonstrated the 3.2-kb hotspot crossover, of which there were two subgroups. The type 1 crossover breakpoint was located at the distal CMT1A-REP around the PmeI site, and accounted for 24 of the 27 cases with a 3.2-kb hotspot crossover in CMT1A duplication patients. The type 2 crossover breakpoint was located at the distal CMT1A-REP around the base 3625 region, accounting for 3 of the 27 cases. The results correlated very well with the results of Southern transfer analysis. This study has a potentially important role in the diagnosis of CMT1A disease.
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Affiliation(s)
- J G Chang
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan.
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