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Chen YC, Hsiao CJ, Jung CC, Hu HH, Chen JH, Lee WC, Chiou JM, Chen TF, Sun Y, Wen LL, Yip PK, Chu YM, Chen CJ, Yang HI. Performance Metrics for Selecting Single Nucleotide Polymorphisms in Late-onset Alzheimer's Disease. Sci Rep 2016; 6:36155. [PMID: 27805002 PMCID: PMC5090242 DOI: 10.1038/srep36155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 10/10/2016] [Indexed: 12/13/2022] Open
Abstract
Previous genome-wide association studies using P-values to select single nucleotide polymorphisms (SNPs) have suffered from high false-positive and false-negative results. This case-control study recruited 713 late-onset Alzheimer's disease (LOAD) cases and controls aged ≥65 from three teaching hospitals in northern Taiwan from 2007 to 2010. Performance metrics were used to select SNPs in stage 1, which were then genotyped to another dataset (stage 2). Four SNPs (CPXM2 rs2362967, APOC1 rs4420638, ZNF521 rs7230380, and rs12965520) were identified for LOAD by both traditional P-values (without correcting for multiple tests) and performance metrics. After correction for multiple tests, no SNPs were identified by traditional P-values. Simultaneous testing of APOE e4 and APOC1 rs4420638 (the SNP with the best performance in the performance metrics) significantly improved the low sensitivity of APOE e4 from 0.50 to 0.78. A point-based genetic model including these 2 SNPs and important covariates was constructed. Compared with elders with low-risks score (0-6), elders belonging to moderate-risk (score = 7-11) and high-risk (score = 12-18) groups showed a significantly increased risk of LOAD (adjusted odds ratio = 7.80 and 46.93, respectively; Ptrend < 0.0001). Performance metrics allow for identification of markers with moderate effect and are useful for creating genetic tests with clinical and public health implications.
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Affiliation(s)
- Yen-Ching Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
- Research Center for Genes, Environment and Human Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chi-Jung Hsiao
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chien-Cheng Jung
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Hui-Han Hu
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Jen-Hau Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Geriatrics and Gerontology, National Taiwan University, Taipei, Taiwan
| | - Wen-Chung Lee
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
- Department of Public Health, College of Public Health, National Taiwan University, Taipei, Taiwan
- Research Center for Genes, Environment and Human Health, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Jeng-Min Chiou
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Ta-Fu Chen
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu Sun
- Department of Neurology, En Chu Kong Hospital, Taipei, Taiwan
| | - Li-Li Wen
- Department of Laboratory Medicine, En Chu Kong Hospital, Taipei, Taiwan
| | - Ping-Keung Yip
- Center of Neurological Medicine, Cardinal Tien Hospital, Taipei, Taiwan
- School of Medicine, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Yi-Min Chu
- Department of Laboratory Medicine, Cardinal Tien Hospital, Taipei, Taiwan
| | - Chien-Jen Chen
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Hwai-I Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
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Chen YC, Hsiao CJ, Jung CC, Hu HH, Chen JH, Lee WC, Chiou JM, Chen TF, Sun Y, Wen LL, Yip PK, Chu YM, Chen CJ, Yang HI. P3‐081: Application of Clinical‐Based Indices on Identification of Genetic Markers for Late‐Onset Alzheimer’s Disease. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yen-Ching Chen
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan UniversityTaipeiTaiwan
| | - Chi-Jung Hsiao
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan UniversityTaipeiTaiwan
| | - Chien-Cheng Jung
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan UniversityTaipeiTaiwan
| | - Hui-Han Hu
- Genomics Research Center Academia SinicaTaipeiTaiwan
| | - Jen-Hau Chen
- Department of Geriatrics and Gerontology National Taiwan University HospitalTaipeiTaiwan
| | - Wen-Chung Lee
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan UniversityTaipeiTaiwan
| | - Jeng-Min Chiou
- Institute of Statistical Science Academia SinicaTaipeiTaiwan
| | - Ta-Fu Chen
- Department of Neurology National Taiwan University HospitalTaipeiTaiwan
| | - Yu Sun
- Department of Neurology En Chu Kong HospitalTaipeiTaiwan
| | - Li-Li Wen
- Department of Laboratory Medicine En Chu Kong HospitalTaipeiTaiwan
| | - Ping-Keung Yip
- Center of Neurological Medicine, Cardinal Tien HospitalTaipeiTaiwan
| | - Yi-Min Chu
- Department of Laboratory Medicine Cardinal Tien HospitalTaipeiTaiwan
| | | | - Hwai-I. Yang
- Genomics Research Center Academia SinicaTaipeiTaiwan
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Hsiao CJ, Hsu MM, Lee JY, Chen WC, Hsieh WC. Paraneoplastic pemphigus in association with a retroperitoneal Castleman's disease presenting with a lichen planus pemphigoides-like eruption. A case report and review of literature. Br J Dermatol 2001; 144:372-6. [PMID: 11251576 DOI: 10.1046/j.1365-2133.2001.04030.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A 50-year-old man presented with severe mucosal erosions of the lips, oral cavity and perianal area, a lichen planus-like eruption on the trunk and extremities and scaly plaques of the palms and soles. The clinical impression was of Stevens--Johnson syndrome, or paraneoplastic pemphigus (PNP). Histopathology revealed vacuolar interface and lichenoid dermatitis with dyskeratosis and suprabasal acantholytic vesiculation. Direct immunofluorescence showed deposition of IgG in the intercellular space and linear deposition of C3 along the basal membrane zone. Indirect immunofluorescence revealed circulating IgG with intercellular staining of the epithelium of rat urinary bladder. Western blotting demonstrated bands of 250- and 230-kDa antigens. The clinical, histological and immunological features were consistent with the lichen planus pemphigoides variant of PNP. A retroperitoneal hyaline-vascular Castleman's disease was detected and excised. The skin lesions worsened initially after tumour resection but improved gradually, leaving extensive melanosis after cyclosporin and mycophenolate mofetil treatment.
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Affiliation(s)
- C J Hsiao
- Department of Dermatology, National Cheng-Kung University Hospital, 138 Sheng-Li Road, Tainan, Taiwan 704
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Tang CC, Hsiao CJ, Chen H, Wang CH, Lin HC, Yu CT, Kuo HP. Value of bronchoalveolar lavage combined with transbronchial lung biopsy in the diagnosis of peripheral lung cancer. Chang Gung Med J 2000; 23:695-700. [PMID: 11190379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
BACKGROUND Bronchoalveolar lavage (BAL) is a safe and established procedure to evaluate interstitial lung diseases and pulmonary tuberculosis. The diagnostic rate of peripheral lung cancer invisible through bronchoscopy applied by transbronchial lung biopsy (TBLB) is still low. The study was designed to evaluate whether BAL combined with TBLB might improve the positive value in the diagnosis of peripheral lung cancer. METHODS Thirty-seven of 72 patients who presented with peripheral lung lesions in chest radiography were proven to have a malignancy according to the final reports of cytology, histology, and clinical evidence. Each patient received BAL with or without TBLB. The patterns of chest radiography of the malignancies included 33 of infiltrative type and 4 of massive or nodular type. RESULTS BAL alone revealed positive malignant cells in 18 of 37 cases (sensitivity 48.6%), and the diagnostic value significantly increased to 73.0% (p < 0.05) with BAL + TBLB. In the infiltrative type of lung cancer, the diagnostic rate of BAL + TBLB (78.8%) was significantly improved compared to that of BAL alone (51.5%, p < 0.05). There was no difference of diagnostic value in those with nodular type. BAL + TBLB can achieve a very high diagnostic rate (100%) in cases of metastatic malignancy (n = 4). Only 2 patients developed bleeding post BAL + TBLB, and it was easily controlled by epinephrine spraying. One patient developed self-limited hemoptysis. CONCLUSION BAL + TBLB is a safe and valuable procedure to achieve a high sensitivity rate in the diagnosis of peripheral lung cancer, especially of the infiltrative type.
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Affiliation(s)
- C C Tang
- Second Division of Thoracic Medicine, Chang Gung Memorial Hospital, 5 Fu-Shin Street, Kweishan, Taoyuan, Taiwan, R.O.C
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Hsiao CJ, Tang CC, Wang CH, Yu CT, Kuo HP, Lin HC. The value of transbronchial lung biopsy in the diagnosis of peripheral lung tumors according to cell type. Chang Gung Med J 2000; 23:584-9. [PMID: 11126149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
BACKGROUND Transbronchial lung biopsy (TBLB) is a useful diagnostic tool for peripheral lung tumors. However, the success rate is variable. Our study was designed to investigate the value of TBLB without fluoroscopic guidance in the diagnosis of variable cell types of peripheral lung cancers. METHODS A retrospective study was conducted to investigate a total of 597 patients who had undergone fiberoptic bronchoscopy for lung mass on chest X-ray in Chang Gung Memorial Hospital from January 1996 to December 1998. The lung masses were proven to be malignant by cytology and histology. RESULTS Of 358 patients (60.0%) proven with malignancy, 107 patients presented with peripheral lung cancer (17.9%), including 59 with adenocarcinoma, 26 with squamous cell carcinoma, 11 with poorly differentiated carcinoma, 3 with small cell carcinoma, and 8 with metastatic cancers. The diagnostic rate of peripheral lung cancer by TBLB reached 54.2%. The sensitivity rates of detection of non-small cell type by TBLB were adenocarcinoma, 50.9%; squamous cell carcinoma, 61.5%; and poorly differentiated carcinoma, 72.7%, while that of small cell carcinoma was 100%. In contrast, the sensitivity rate of TBLB for metastatic cancers was lower (12.5%) than for primary lung cancers. Repeated TBLB of peripheral lung cancers increased the diagnostic rate from 49.5% to 54.2%. CONCLUSION TBLB is an effective bronchoscopic sampling technique in the diagnosis of peripheral lung tumors without additional risk. The use of TBLB in the clinical routine should be encouraged.
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Affiliation(s)
- C J Hsiao
- Second Division of Thoracic Medicine, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan, R.O.C
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Chang SP, Hsiao CJ, Too LL, Yang TS, Ouyang HJ, Shieh ML, Lin PW. Successful birth after intracytoplasmic sperm injection for severe male factor infertility in a woman with poor response to controlled ovarian hyperstimulation. Zhonghua Yi Xue Za Zhi (Taipei) 2000; 63:162-4. [PMID: 10677930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Poor responders to controlled ovarian hyperstimulation (COH) present a clinical challenge for in vitro fertilization (IVF) and embryo transfer. The failure of IVF for the treatment of severe male-factor infertility can now be overcome by intracytoplasmic sperm injection (ICSI). The infertile couple documented in this case report came to our hospital because of bilateral tubal occlusion and severe oligoasthenospermia. After three poor-response cycles to COH, one mature oocyte was retrieved and was fertilized using ICSI. Normal fertilization ensued and one good-quality, eight-celled embryo was transferred into the woman's uterus. A single gestation was confirmed by ultrasound seven weeks after transfer. Amniocentesis was performed at 16 weeks and demonstrated a normal male fetus with a karyotype of 46,XY. The patient had a spontaneous, normal, vaginal delivery of a 2,650 g healthy male infant.
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Affiliation(s)
- S P Chang
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taiwan, ROC
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Chen YJ, Lee SH, Hsieh MH, Hsiao CJ, Yu WC, Chiou CW, Chen SA. Effects of 17beta-estradiol on tachycardia-induced changes of atrial refractoriness and cisapride-induced ventricular arrhythmia. J Cardiovasc Electrophysiol 1999; 10:587-98. [PMID: 10355701 DOI: 10.1111/j.1540-8167.1999.tb00716.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Gender difference is known to be associated with the occurrence of arrhythmia. However, the effects of female sex hormone on atrial electrophysiology, and on the occurrence of torsades de pointes (TdP) induced by cisapride have been unclear. METHODS AND RESULTS Two experiments were included in this study. In experiment 1, effective refractory periods (ERPs) from five epicardial atrial sites were measured before and after rapid atrial pacing at 800 beats/min for 30 minutes in dogs with pretreatment of verapamil (n = 10), 17beta-estradiol (n = 10), or without pretreatment (n = 10, control group). In experiment 2, limb-lead ECG and monophasic action potentials in the left and right ventricles were recorded before and after each dose of cisapride (2 to 6 mg/kg) during different ventricular rates in dogs with (n = 9) and without (n = 14) concomitant administration of 17beta-estradiol (0.3 microg/kg). After 17beta-estradiol administration, there were greater atrial ERPs in the study dogs than in the control group. The atrial ERPs were shortened significantly after rapid atrial pacing, but the degree was greater in the control group than in the dogs pretreated with verapamil or 17beta-estradiol. Moreover, the recovery of atrial ERPs was faster in dogs pretreated with verapamil or 17beta-estradiol than in the control group. In experiment 2, cisapride prolonged the QT interval and biventricular APD90 and induced early afterdepolarizations (EADs) in a dose-dependent manner. However, dogs receiving cisapride combined with 17beta-estradiol had a greater increase of ventricular repolarization and a higher incidence of EADs than those receiving cisapride only. Moreover, dogs receiving cisapride combined with 17beta-estradiol (3/9, 33%) had a greater incidence of TdP than those receiving cisapride only (0/14, 0%, P < 0.05). CONCLUSIONS 17beta-estradiol has a significant effect on atrial electrophysiology, which may be related to the prevention of atrial fibrillation. However, the high incidence of TdP in dogs receiving cisapride combined with 17beta-estradiol suggests that the female sex hormone is an important risk factor of cisapride-induced proarrhythmia.
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Affiliation(s)
- Y J Chen
- Division of Cardiovascular Medicine, Taipei Medical College, Taipei Wan-Fang Hospital, Taiwan
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Affiliation(s)
- C J Hsiao
- Department of Obstetrics and Gynecology, Veterans General Hospital-Taipei, Taiwan
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Abstract
Two cases of foreign bodies (button batteries) in the nasal cavities were reported. The first patient was a 6-year-old girl who put a button battery into her left nostril and ulceration of the septum and inferior turbinate was found. The other patient was a 3-year-old boy, the alkaline battery caused neither septal perforation nor stenosis of the nasal meatus. All button batteries as foreign bodies in the nasal cavities should be removed immediately to prevent severe local tissue damage, resulting in late sequels, such as septal perforation or stenosis of the nasal meatus.
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Affiliation(s)
- D Hong
- Department of Otolaryngology, Taipei Municipal Women and Children Hospital, Taiwan
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Hong D, Tong KM, Hsiao CJ. [Kartagener's syndrome--a case report]. Taiwan Yi Xue Hui Za Zhi 1985; 84:1003-7. [PMID: 3878388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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