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Fu CC, Chen YJ, Su CW, Wei CY, Chu CJ, Lee PC, Huo TI, Huang YH, Huang HC, Wu JC, Hou MC. The outcomes and prognostic factors of patients with hepatocellular carcinoma and Child-Turcotte-Pugh class B. J Chin Med Assoc 2023; 86:876-884. [PMID: 37537726 DOI: 10.1097/jcma.0000000000000975] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND The Child-Turcotte-Pugh (CTP) score is widely used for assessing the liver's functional reserve in patients with advanced chronic liver disease (ACLD) and hepatocellular carcinoma (HCC). This study aims to explore the outcomes of patients with HCC and CTP class B and to investigate the prognostic accuracy of prediction models for ACLD in these patients. METHODS We retrospectively enrolled 1143 patients with HCC and CTP class B between 2007 and 2022. We divided the patients into three subgroups based on their CTP scores: CTP-B7, CTP-B8, and CTP-B9. We compared the corrected Akaike information criterion among each mortality prediction model, including the CTP score, albumin-bilirubin (ALBI) score, modified ALBI score, the model for end-stage liver disease (MELD), and MELD 3.0. RESULTS Among the enrolled patients, 576 (50.3%) were in the CTP-B7 group, 363 (31.8%) were in the CTP-B8 group, and 204 (17.9%) were in the CTP-B9 group. After a median follow-up of 4.6 months (interquartile range IQR 1.8-17.2 months), 963 patients died, and the 5-year overall survival (OS) rate was 11.4%. The 5-year OS rates were 11.6%, 13.6%, and 8.3% in the CTP-B7, CTP-B8, and CTP-B9 groups, respectively. Patients in the CTP-B7 group and CTP-B8 group had comparable OS ( p = 0.089), both of which were better than those in the CTP-B9 group ( p < 0.001). Furthermore, the MELD 3.0 score had the lowest corrected akaike information criteria value and provided a more accurate mortality prediction than the MELD score, ALBI grade, modified ALBI grade, and CTP score. CONCLUSION Patients in the CTP-B7 and CTP-B8 groups had comparable OS, both of which were better than those in the CTP-B9 group. Moreover, MELD 3.0 provided the most accurate mortality prediction in patients with HCC and CTP class B.
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Affiliation(s)
- Chia-Chu Fu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yu-Jen Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of General Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chi-Jen Chu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Pei-Chang Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Teh-Ia Huo
- Division of Basic Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Pharmacology, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan, ROC
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Hui-Chun Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Jaw-Ching Wu
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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Fu CC, Wei CY, Chu CJ, Lee PC, Huo TI, Huang YH, Chao Y, Hou MC, Wu JC, Su CW. The outcomes and prognostic factors of patients with hepatocellular carcinoma and normal serum alpha fetoprotein levels. J Formos Med Assoc 2023; 122:593-602. [PMID: 36456455 DOI: 10.1016/j.jfma.2022.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 10/24/2022] [Accepted: 11/13/2022] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Alpha fetoprotein (AFP) is the most widely used tumor marker for hepatocellular carcinoma (HCC). Nevertheless, few studies have investigated the prognostic factors of HCC patients with normal serum AFP levels. METHODS We retrospectively enrolled 2198 patients with HCC and normal serum AFP levels (<20 ng/mL) from 2007 to 2020. Overall survival (OS) rates were calculated by the Kaplan-Meier method, and analyses of the prognostic factors were performed using a Cox proportional hazard model. RESULTS Among the enrolled patients, 1385 (63%) patients were in the low-normal AFP group (serum AFP levels ≤7 ng/mL), and 813 (37%) patients were in the high-normal AFP group (serum AFP levels between 7 and 20 ng/mL). The high-normal AFP group had poorer liver functional reserve, more multiple tumors, and smaller tumor size compared to those in the low-normal AFP group. After a median follow-up of 32.4 months, 942 patients died, and the 5-year OS rate was 54.4%. The 5-year OS rates were 57.4% and 49.8% in the low-normal AFP group and high-normal AFP group, respectively (p = 0.001). A multivariate analysis showed the independent prognostic factors of poor OS were no anti-viral therapy, advanced albumin-bilirubin grades, the presence of vascular invasion, tumor size ≥5 cm, and non-curative treatment modalities. Serum AFP levels were not associated with OS according to the multivariate analysis. CONCLUSION Liver functional reserve, anti-viral therapy, tumor size, vascular invasion, and treatment modalities, determined the outcomes of HCC patients with normal serum AFP levels, but serum AFP levels did not.
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Affiliation(s)
- Chia-Chu Fu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Chi-Jen Chu
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Pei-Chang Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Teh-Ia Huo
- Division of Basic Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan; Institute of Pharmacology, National Yang Ming Chiao Tung University School of Medicine, Taipei, Taiwan.
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Institute of Clinical medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Yee Chao
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Jaw-Ching Wu
- Institute of Clinical medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Institute of Clinical medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Hospitalist Ward, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
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Wei CY, Liu B. [Characteristics and additive effect of hearing loss induced by diabetes mellitus and noise]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:749-753. [PMID: 35725323 DOI: 10.3760/cma.j.cn115330-20211117-00741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- C Y Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
| | - B Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Institute of Otolaryngology, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
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Chen YJ, Su CW, Wei CY, Chau GY, Chen PH, Chao Y, Huang YH, Wu JC, Yang TC, Lee PC, Hou MC. Comparison of prognoses between cirrhotic and noncirrhotic patients with hepatocellular carcinoma and esophageal varices undergoing surgical resection. J Chin Med Assoc 2022; 85:679-686. [PMID: 35507056 DOI: 10.1097/jcma.0000000000000739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/24/2022] Open
Abstract
BACKGROUND Esophageal varices (EV) is common and is a poor prognostic factor for patients with hepatocellular carcinoma (HCC). However, the outcomes between cirrhotic and noncirrhotic HCC patients with EV is not well studied. The present study aimed to investigate the clinical manifestations and prognoses of HCC patients after surgical resection stratified by the cirrhosis status. METHODS A total of 111 patients with HCC and EV, who underwent surgical resection, were retrospectively enrolled between July 2003 and July 2019. The diagnosis of liver cirrhosis was established using the Ishak fibrosis score F5 or F6 in the nontumor part of liver specimens. Prognostic factors were analyzed using the Cox proportional hazards model. RESULTS There were 85 (76.6%) and 26 (23.4%) patients with and without cirrhosis, respectively. Compared with those without cirrhosis, there were more females, less seropositive rate of hepatitis B surface antigen (HBsAg), more seropositive rate of antibody against to hepatitis C virus (HCV), less albumin-bilirubin (ALBI) grade 1, lower platelet count, and more had tumor burden within the Milan criteria in cirrhotic patients. Cirrhotic patients had a higher risk of posthepatectomy decompensation compared to noncirrhotic patients (hazard ratio 9.577, p = 0.017). No difference was observed in overall survival and recurrence-free survival between patients with or without cirrhosis. CONCLUSION Compared with patients without cirrhosis, cirrhotic patients with HCC and EV are vulnerable to posthepatectomy decompensation. However, cirrhosis is not a poor prognostic factor of overall survival and recurrence for HCC patients after surgical resection.
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Affiliation(s)
- Yu-Jen Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Hospitalist Ward, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Gar-Yang Chau
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ping-Hsien Chen
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Divsion of Gastroenterology and Hepatology, Department of Medicine, West Garden Hospital, Taipei, Taiwan, ROC
| | - Yee Chao
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Jaw-Ching Wu
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Tsung-Chieh Yang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Pei-Chang Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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Lee CY, Chau GY, Wei CY, Chao Y, Huang YH, Huo TI, Hou MC, Su YH, Wu JC, Su CW. Surgical resection could provide better outcomes for patients with hepatocellular carcinoma and tumor rupture. Sci Rep 2022; 12:8343. [PMID: 35585167 PMCID: PMC9117281 DOI: 10.1038/s41598-022-12350-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/10/2022] [Indexed: 12/24/2022] Open
Abstract
We investigated the outcomes of patients with ruptured hepatocellular carcinoma (HCC) and identified the optimal treatment modality for such patients. We retrospectively enrolled 91 patients with treatment-naive HCC and tumor rupture at diagnosis, including 38 patients who underwent surgical resection (SR) alone, 28 patients who were treated with transarterial chemoembolization (TACE) only, 20 patients who had a sequential combination therapy of TACE and SR, and 5 patients who received best supportive care. After a median follow-up of 13.1 months, 54 patients died. The cumulative 5 years overall survival (OS) rates were 55.1% and 0% in the SR group and non-SR group, respectively (p < 0.001). Non-SR therapy was associated with poorer OS according to a multivariate analysis with a hazard ratio of 6.649 (95% confidence interval 3.581–12.344, p < 0.001). Moreover, whether patients received TACE or not did not impact the OS in both the SR group and the non-SR group. In conclusion, for patients with HCC and tumor rupture at the time of diagnosis, SR could lead to better prognoses than non-surgery treatment modalities. Moreover, a sequential combination of TACE and SR had similar clinical outcomes when compared to SR alone.
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Affiliation(s)
- Chun-Yang Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Peitou District, Taipei, 11217, Taiwan
| | - Gar-Yang Chau
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Peitou District, Taipei, 11217, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yee Chao
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Peitou District, Taipei, 11217, Taiwan.,Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Teh-Ia Huo
- Division of Basic Research, Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Pharmacology, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Peitou District, Taipei, 11217, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Hui Su
- Department of Accounting, School of Business, Soochow University, Taipei, Taiwan
| | - Jaw-Ching Wu
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd., Peitou District, Taipei, 11217, Taiwan. .,Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan. .,Hospitalist Ward, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan. .,Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan.
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Abstract
BACKGROUND The incidence of hepatocellular carcinoma (HCC) is significantly higher in men than women. Nonetheless, the impact of sex disparities on HCC outcomes remains unclear. We aimed to compare the clinical manifestations and prognoses between male and female patients with HCC. METHODS This retrospective study enrolled 5337 consecutive patients (3976 men, 1361 women) who were diagnosed with HCC from 2007 to 2020. The prognostic factors were identified by the Cox proportional hazards model. RESULTS Male patients were younger upon HCC diagnosis (median age 64 vs 69 years; p < 0.001) with more favorable hepatic functional reserves (39.0% vs 35.1% albumin-bilirubin grade 1; p = 0.025) but had greater tumor burdens than the female patients. Furthermore, fewer male patients underwent curative therapies for HCC compared with the female patients (49.0% vs 57.0%; p < 0.001). After a median follow-up of 20.1 months (interquartile range, 5.8-47.3 months), 3133 patients died. The cumulative 5-year overall survival rates were 37.1% and 41.9% for male and female patients, respectively (p < 0.001). From the multivariate analysis, male sex was not an independent factor predictive of poor overall survival in all patients and in the subgroup analysis stratified by treatment modalities. When stratified by age, the female sex was an independent factor associated with lower mortality in younger (≤50 years) patients but not in older patients with HCC. CONCLUSION Sex was not an independent predictor of the outcome of patients with HCC, especially for those aged more than 50 years.
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Affiliation(s)
- Cheng-Yen Liao
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chun-Yang Lee
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Yee Chao
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Yu-Hui Su
- Department of Accounting, School of Business, Soochow University, Taipei, Taiwan, ROC
| | - Jaw-Ching Wu
- Institute of Clinical Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
- Hospitalist Ward, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan, ROC
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Chang CY, Wei CY, Chen PH, Hou MC, Chao Y, Chau GY, Lee RC, Huang YH, Su YH, Wu JC, Su CW. The role of albumin-bilirubin grade in determining the outcomes of patients with very early-stage hepatocellular carcinoma. J Chin Med Assoc 2021; 84:136-143. [PMID: 33433133 DOI: 10.1097/jcma.0000000000000482] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Patients with hepatocellular carcinoma (HCC) and with a single tumor <2 cm in size are classified as having Barcelona Clinic Liver Cancer (BCLC) stage 0 HCC. We aimed to investigate the role of the albumin-bilirubin (ALBI) grade in predicting outcomes in patients with BCLC stage 0 HCC. METHODS We retrospectively enrolled patients with BCLC stage 0 HCC in Taipei Veterans General Hospital from 2007 to 2015. Prognostic factors were analyzed using a Cox proportional hazards model and propensity score matching (PSM) analysis. RESULTS There were 420 patients enrolled, including 207 with ALBI grade 1, and 213 with ALBI grade 2 or 3. After a median follow-up of 60.0 months (interquartile range, 37.2-84.6 months), 179 patients died. The cumulative 5-year overall survival (OS) rates were 80.6% in patients with ALBI grade 1 and 53.7% in those with ALBI grade 2 or 3, respectively (p < 0.001). Multivariate analysis showed that age >65 years, negative hepatitis B surface in serum, creatinine >1.0 mg/dL, platelet count ≤105/mm3, tumor size >1.5 cm, nonsurgical resection (SR) therapy, and higher ALBI grade were independent risk factors related to poor OS. Patients who underwent SR had a better OS and recurrence-free survival than those who received radiofrequency ablation, which was confirmed by a multivariate analysis and PSM analysis. CONCLUSION The ALBI grade can determine OS for patients with BCLC stage 0 HCC. SR can also provide a better outcome than nonsurgical treatment.
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Affiliation(s)
- Chung-Yu Chang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Healthcare and Services Center, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Ping-Hsien Chen
- Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Division of Gastroenterology and Hepatology, Department of Medicine, West Garden Hospital, Taipei, Taiwan, ROC
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yee Chao
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Gar-Yang Chau
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Rheun-Chuan Lee
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Yu-Hui Su
- Department of Accounting, School of Business, Soochow University, Taipei, Taiwan, ROC
| | - Jaw-Ching Wu
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Department of Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Cancer Progression Research Center, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
- Hospitalist Ward, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
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Mo M, Chen MJ, Huang Y, Jiang W, Qin QH, Liang ZJ, Yang WP, Wei CY. [Esculin inhibits proliferation of triple negative breast cancer cells by down-regulating FBI-1]. Zhonghua Zhong Liu Za Zhi 2020; 42:629-634. [PMID: 32867453 DOI: 10.3760/cma.j.cn112152-20191001-00642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of esculin on the proliferation of triple negative breast cancer cells and its molecular mechanism. Methods: MDA-MB-231 cells were treated with 28, 56, 112, 225, 450 and 900 μmol/L of esculin for 24, 48 and 72 h, respectively, and the cell viability was detected by cell counting kit 8 (CCK-8) assay. In addition, MDA-MB-231 cells were treated with 0, 225, 450 and 900 μmol/L of esculin for 48 h. And then the changes in cell morphology were observed by inverted microscope. The clone-forming ability was detected by colony formation assay. The mRNA expression levels of FBI-1, p53 and p21 were detected using real-time fluorescence quantitative polymerase chain reaction. The protein expression levels of FBI-1, p53, p21 and Ki67 were detected by western blot. Results: Compared with the blank control group, the cell viability of MDA-MB-231 cells that treated with esculin significantly decreased in a dose-dependent and time-dependent manners. After treatment with esculin, MDA-MB-231 cells shrunk, flattened, adhered poorly to the culture dish and the cell spacing became larger. Meanwhile, shedding and incomplete cells appeared, of which 900 μmol/L of esculin treatment group showed the most dramatic changes. In addition, the colony formation ratios were decreased to (77.18±5.13)%, (65.94±4.98)% and (45.92±3.70)% in the 225, 450 and 900 μmol/L of esculin treatment groups compared with blank control, respectively (P<0.01). Furthermore, the mRNA and protein expressions of FBI-1 increased, while the levels of p53 and p21 mRNA and protein, as well as the protein expression of Ki67 decreased in a concentration-dependent manner (P<0.01). Conclusion: Esculin may regulate cell cycle-related p53-p21 pathway via FBI-1 mediated DNA replication, thus inhibit the proliferation of triple negative breast cancer cells.
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Affiliation(s)
- M Mo
- Department of Breast Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - M J Chen
- Department of Breast Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - Y Huang
- Department of Experimental Research, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - W Jiang
- Department of Respiratory Oncology, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - Q H Qin
- Department of Breast Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - Z J Liang
- Breast Center, the Fifth Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - W P Yang
- Department of Ultrasound, Guangxi Medical University Cancer Hospital, Nanning 530021, China
| | - C Y Wei
- Department of Breast Surgery, Guangxi Medical University Cancer Hospital, Nanning 530021, China
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9
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Wei CY, Chen PC, Chau GY, Lee RC, Chen PH, Huo TI, Huang YH, Su YH, Hou MC, Wu JC, Su CW. Comparison of prognosis between surgical resection and transarterial chemoembolization for patients with solitary huge hepatocellular carcinoma. Ann Transl Med 2020; 8:238. [PMID: 32309385 PMCID: PMC7154415 DOI: 10.21037/atm.2019.12.157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Background For patients with solitary huge (>10 cm in size) hepatocellular carcinoma (HCC) and without major vascular invasion, the treatment efficacy between surgical resection (SR) and transarterial chemoembolization (TACE) is not well studied. We aimed to compare the prognoses between SR and TACE for patients with solitary huge HCC. Methods We enrolled 143 patients with treatment-naïve, solitary HCC (>10 cm) who had received either SR or TACE treatment between 2007–2016. Factors of overall survival (OS) were analyzed by multivariate analysis. Propensity scores matching (PSM) method was adopted to adjust baseline demographic differences for further analysis. Results Ninety patients underwent SR and 53 patients received TACE. After a median follow-up of 17.0 (interquartile range 7.7–45.6) months, 83 patients had died. The cumulative 5-year OS rate was 44.7% and 11.7% for the SR group and the TACE group, respectively (P<0.001). A multivariate analysis showed that TACE [hazard ratio (HR): 3.515, 95% confidence interval (CI): 2.202–5.610, P<0.001], and albumin-bilirubin (ALBI) grade >1 (HR: 2.181, 95% CI: 1.343–3.543, P=0.002) were the independent risk factors associated with poorer OS. After PSM, 37 pairs of matched patients were selected from each treatment arm. After matching, patients who underwent SR still evinced a significantly higher OS than did those who underwent TACE (P=0.010). Conclusions SR provided a better OS than did TACE for patients with solitary huge (≥10 cm) HCC. As such, SR is recommended as the therapeutic priority for these patients.
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Affiliation(s)
- Cheng-Yi Wei
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei
| | - Po-Chun Chen
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei
| | - Gar-Yang Chau
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei.,Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei
| | - Rheun-Chuan Lee
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei.,Department of Radiology, Taipei Veterans General Hospital, Taipei
| | - Ping-Hsien Chen
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei.,Endoscopy Center for Diagnosis and Treatment, Taipei Veterans General Hospital, Taipei.,Institute of Biophotonics, National Yang-Ming University, Taipei
| | - Teh-Ia Huo
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei.,Institute of Pharmacology, National Yang-Ming University, Taipei.,Department of Medical Research, Taipei Veterans General Hospital, Taipei
| | - Yi-Hsiang Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei.,Institute of Clinical Medicine, National Yang-Ming University, Taipei
| | - Yu-Hui Su
- Department of Accounting, School of Business, Soochow University, Taipei
| | - Ming-Chih Hou
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei
| | - Jaw-Ching Wu
- Department of Medical Research, Taipei Veterans General Hospital, Taipei.,Institute of Clinical Medicine, National Yang-Ming University, Taipei
| | - Chien-Wei Su
- Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei
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10
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Mao AY, Chen MJ, Yang C, Ou C, Ye XQ, Qin QH, Mo M, Wei CY. [Comparison of modeling effects of two different 7, 12-dimethylbenz[a] anthracene induced breast cancer models in tree shrew]. Zhonghua Zhong Liu Za Zhi 2019; 41:346-350. [PMID: 31137167 DOI: 10.3760/cma.j.issn.0253-3766.2019.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the feasibility of 7, 12-dimethylbenz[a] anthracene (DMBA) induced tree shrew breast cancer model, and compare the effects of two administration modes by gavage and mammary gland injection. Methods: A total of 40 tree shrews were randomly divided into two groups (20 animals per group): DMBA gavage group and mammary gland injection group. DMBA was dissolved in edible vegetable oil. For gavage group, tree shrews were administered with DMBA solutions (15 mg/kg) by gavage once a day. For mammary gland injection group, DMBA solution (10 mg/kg) was injected into the mammary fat pad of tree shrews, and the injection was performed for a total of 3 times. From the first administration of DMBA, medroxyprogesterone acetate (MPA, 100 mg/kg) was intramuscularly injected into the muscles of the lateral thighs of tree shrews at the same time, for a total of 5 times. The tumorigenesis and survival of tree shrews were monitored. The tumor histological morphology was observed by HE staining. The expression of estrogen receptor (ER), progesterone receptor (PR), cytokeratin5/6 (CK5/6) and human epidermal factor receptor-2 (HER-2) was detected by immunohistochemical staining. Results: In the gavage group, there were 10 deaths, and 4 tree shrews developed mammary tumors with 20.0% (4/20) tumor formation rate. The success rate of mammary cancer modeling was 10.0% (2/20), and the tumor formation time was 197.3±15.1 days. In the mammary gland injection group, there were 8 tree shrews died, and 9 tree shrews formed tumors with 45.0% (9/20) tumor formation rate. The success rate of mammary cancer modeling was 40.0% (8/20), and the tumor formation time was 71.8±19.0 days. There was no significant difference in mortality and tumor formation rate (P>0.05) between the two groups (all P>0.05). However, in the mammary gland injection group, the success rate of mammary cancer modeling was significantly higher than that in the gavage group (P<0.05), whereas the tumor formation time was markedly shorter than that in the gavage group (P<0.01). The pathological types in the gavage group included ductal hyperplasia, intraductal papilloma and ductal carcinoma in situ, while those in the breast injection group included intraductal papilloma and ductal carcinoma in situ. In both groups, immunohistochemical staining showed the negative expression of HER-2 but positive expression of ER, PR and CK5/6 with varying degrees. Conclusion: Both the DMBA gavage and mammary gland injection can successfully establish the tree shrew breast cancer model, and the modeling effect of mammary gland injection is better than gavage.
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Affiliation(s)
- A Y Mao
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - M J Chen
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - C Yang
- Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - C Ou
- Department of Experimental Research, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - X Q Ye
- Department of Pathology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - Q H Qin
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - M Mo
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
| | - C Y Wei
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
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11
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Mao AY, Chen MJ, Jiang W, Wang L, Qin QH, Tan QX, Yang WP, Wei CY. [Analyses of the Expression of FBI-1 in Breast Cancer Pre- and Pro-neoadjuvant Chemotherapy]. Zhonghua Yi Xue Za Zhi 2019; 98:3751-3755. [PMID: 30541216 DOI: 10.3760/cma.j.issn.0376-2491.2018.46.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of factor that binds to inducer of short transcripts-1 of HIV (FBI-1)in breast cancer pre- and pro-neoadjuvant chemotherapy and explore the relationship between FBI-1 expression and treatment efficacy. Methods: We collected 50 patients with breast cancer who received neoadjuvant chemotherapy before operation in the Affiliated Tumor Hospital of Guangxi Medical University from January, 2010 to December, 2014. The expression of FBI-1 in breast cancer tissues pre- and pro-neoadjuvant chemotherapy was detected by immunohistochemical staining. We compared the level of FBI-1 expression pre- and pro-neoadjuvant chemotherapy, and tried to explore its relationship with patient and tumor characteristics and treatment efficacy. Results: (1) The rate of upregulated expression of FBI-1 in breast cancer tissues was 70% (35/50). The upregulated expression of FBI-1 was related to the higher clinical stage and trend of lymph node metastasis (P<0.05), whereas not related to the age and expression of ER, PR, Ki-67, and Her-2(P>0.05); (2) the setting of FBI-1 lower expression pre-neoadjuvant chemotherapy had superior treatment outcome than the high expression setting based on either clinical assessment (86.7% vs 51.4%, P=0.027) or pathological assessment(80.0% vs 28.6%, P=0.001); (3) the rate of upregulated FBI-1 expression was significantly decreased post-neoadjuvant chemotherapy(70.0% vs 38.0%, P=0.004), with FBI-1 expression of 22 patients downregulated (62.9%); (4) the expression of FBI-1 in responded setting was significantly decreased than that in the non-responded setting based on either clinical (77.4% vs 26.3%, P=0.001) or pathological (72.7% vs 39.3%, P=0.024) assessment. The downregulation of FBI-1 was correlated to either clinical efficacy (r=0.440, P<0.01) or pathological efficacy (r=0.491, P<0.05) of neoadjuvant chemotherapy. Conclusion: In breast cancer patients receiving neoadjuvant chemotherapy, the upregulated expression of FBI-1 in breast cancer lesion is associated with clinical stage and lymph node metastasis. The neoadjuvant chemotherapy can significantly reduce the expression of FBI-1. The upregulated expression of FBI-1 may be predictive of resistance to chemotherapeutic drugs, and has predictive value for the efficacy of neoadjuvant chemotherapy in breast cancer patients.
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Affiliation(s)
- A Y Mao
- Department of Breast Surgery, the Affiliated Tumor Hospital of Guangxi Medical University, Nanning 530021, China
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Hu B, Kou ZQ, Shao CC, Yin HY, Liu ZD, Xu XH, Fang M, Chen BL, Wei CY, Li GF, Bi ZW. [Characteristics and drug resistance of non-O157 Shiga toxin-producing E. coli in animal feces, from Shandong Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 52:271-276. [PMID: 29973006 DOI: 10.3760/cma.j.issn.0253-9624.2018.03.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the infection status, characteristics and drug resistance of non-O157 Shiga toxin-producing E. coli (STEC) in animal feces in Shandong Province. Methods: From 2015 to 2016, convient sampling method was used to collect 1 022 fresh feces of animals in Weishan county and Laizhou city, and 24 non-O157 STEC were isolated. The serotypes of non-O157 STEC strains were confirmed through serum agglutination test. The susceptibility was explored through the antimicrobial sensitivity experiments. ESBLs activity was confirmed by double-disc diffusion. PCR method was used to detect the resistance genes. PFGE typing was operated to assess the relatedness and variability of the strains. The multi-locus sequence typing (MLST) was adopted to get the allelic profile and ST sequence of strains. Analysis was made on the evolutionary relationship between different ST groups was made through CLC Sequence Viewer and Counting Express. Results: A total of 24 non-O157 STEC were isolated from animal feces. 23 strains were from pig feces, and 1 strain was from cow feces, and the serotypes were more dispersed. All of the 24 strains carried stx2 genes. The highest resistance rate was sulfamethoxazole(22 strains), the mount of cotrimoxazole and nalidixic acid was 18 strains, chloramphenicol was 13 strains, tetracycline was 19, and there was a phenomenon of multiple drug resistance. The drug resistance spectrum was sulfamethoxazole tetracycline-compound novammin-naphthidine-chloramphenicol. All strains were sensitive to cefepime and imipenem. The ESBLs confirmatory test showed that 4 strains of non O157 STEC produced beta lactamase. PCR detected 7 resistance genes, and 4 tetracycline resistance genes (Tet A, Tet B, tetC and tetD) were detected. The beta lactamase resistance genes (blaSHV-1, bla CTX-M, bla TEM) were all negative. 24 strains were divided into 15 PFGE types, and their clustering results were more dispersed and no dominant PFGE type. There were 11 kinds of MLST types, most of them are ST540 and ST5133 types, each of which was 4 strains, and clustered into 1 MLST genomes. Conclusion: The serotypes of non-O157 STEC in animal feces O157 STEC were dispersed, and the resistant rate to common antibiotic was high. MLST typing results presents obvious polymorphism. Surveillance and manage ment of these strains should be strengthened.
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Affiliation(s)
- B Hu
- Shandong Provincial Center for Disease Control and Prevention, Ji'nan, Shandong 250014, China
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13
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Wei CY, Shen B, Ding P, Han P, Li AD, Xia YD, Xu B, Yin J, Liu ZG. Ta 2O 5-TiO 2 Composite Charge-trapping Dielectric for the Application of the Nonvolatile Memory. Sci Rep 2017; 7:5988. [PMID: 28729693 PMCID: PMC5519694 DOI: 10.1038/s41598-017-05248-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 05/25/2017] [Indexed: 11/09/2022] Open
Abstract
The charge-trapping memory devices with a structure Pt/Al2O3/(Ta2O5) x (TiO2) 1-x /Al2O3/p-Si (x = 0.9, 0.75, 0.5, 0.25) were fabricated by using rf-sputtering and atomic layer deposition techniques. A special band alignment between (Ta2O5) x (TiO2) 1-x and Si substrate was designed to enhance the memory performance by controlling the composition and dielectric constant of the charge-trapping layer and reducing the difference of the potentials at the bottom of the conduction band between (Ta2O5) x (TiO2) 1-x and Si substrate. The memory device with a composite charge storage layer (Ta2O5) 0.5 (TiO2) 0.5 shows a density of trapped charges 3.84 × 1013/cm2 at ± 12 V, a programming/erasing speed of 1 µs at ± 10 V, a 8% degradation of the memory window at ± 10 V after 104 programming/erasing cycles and a 32% losing of trapped charges after ten years. The difference among the activation energies of the trapped electrons in (Ta2O5) x (TiO2) 1-x CTM devices indicates that the retention characteristics are dominated by the difference of energy level for the trap sites in each TTO CTM device.
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Affiliation(s)
- C Y Wei
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - B Shen
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - P Ding
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - P Han
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - A D Li
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Y D Xia
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - B Xu
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - J Yin
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China. .,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China.
| | - Z G Liu
- Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China.,National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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Chen PW, Li J, Zhao SQ, Yang JS, Dou JM, Wei CY. [The treatment efficiency of a new ear moding device in the infants with congenital ear abnormalities]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:849-853. [PMID: 29775000 DOI: 10.13201/j.issn.1001-1781.2017.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Indexed: 11/12/2022]
Abstract
Objective:To observe the nonsurgical treatment effciency of a new ear moding device on congenital auricle deformities in order to promote clinical application. Method:Twenty-nine patients (38 ears) from Beijing Tongren Hospital Outpatient received ear molding treatment using the EarWell Infant Ear Correction System. We keep regular follow-up and close observation during the moding period. The treatment effciency was judged by the otologist, plastic surgeons and parents based on the preprocedure and postprocedure photographs and divided into 3 grades: excellent, good and poor. Result:Twenty-nine patients (38 ears) including prominent ear, 2 ears; cup ear,7 ears; lidding/lop ear deformities, 4 ears; Stahl's ear, 4 ears; helical rim abnormalities, 4 ears; conchal crus ear, 3 ears, mixed ear deformities 4 ears; cryptotia, 5 ears; ear malformation, 5 ears, 2 patients (2 ears) stop moding after 3 days treatment due to the low compliance of the infants, the remaining 36 ears received ear molding all have improved. The success rate of the EarWell Infant Ear Correction System is more than 94% (good to excellent). Conclusion:EarWell Infant Ear Correction System have a significant moding effect and can achieve satisfactory results in early time. EarWell system has a high success rate in the treatment of neonatal auricle deformations and mild auricle malformations, depending on the severity of the deformations and the initiation of treatment time. The sooner the noninvasive moding begins (especially within one week after birth), the better effect and the shorter treatment time the patients will achieve.
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Affiliation(s)
- P W Chen
- Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - J Li
- Department of Otolaryngology-Head and Neck Surgery, Beijing Fuxing Hospital, Capital Medical University
| | - S Q Zhao
- Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - J S Yang
- Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - J M Dou
- Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
| | - C Y Wei
- Department of Otolaryngology-Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China
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Yi FX, Yu YH, Wei CY, Yang WP, Qin QH, Tan QX, Mo QG, Huang Z, Lian B. [Efficacy observation of (125)I seed implantation therapy for locoregional recurrent and metastatic breast cancer]. Zhonghua Zhong Liu Za Zhi 2016; 38:472-5. [PMID: 27346407 DOI: 10.3760/cma.j.issn.0253-3766.2016.06.013] [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: 11/05/2022]
Abstract
OBJECTIVE To assess the efficacy and side effects of (125)I seed implantation for locoregional recurrent and metastatic breast cancer, and to discuss its role in the comprehensive therapy of breast cancer. METHODS Forty-three patients with locoregional recurrent or metastatic breast cancer were included in this study. They received (125)I seed implantation and were followed up to evaluate the efficacy and adverse reactions of the treatment. RESULTS Among 54 lesions in the 43 cases, there were complete response (CR) in 39, partial response (PR) in 13, stable disease (SD) in 2 patients, with a response rate of 96.3%. All 17 cases with local pain achieved pain relief. With a median follow up of 36 months (range 14 to 60 months), the 1-, 3-, and 5-year local control rate was 85.2%, 53.7% and 1.9%, and the 1-, 3-, and 5-year survival rate was 95.3%, 67.4% and 37.2%, respectively. No serious radiotherapy side effect was observed. CONCLUSION In patients with unresectable locoregional recurrent or metastatic breast cancer, (125)I seed implantation shows proved efficacy and few complications, and can be an important treatment option.
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Affiliation(s)
- F X Yi
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - Y H Yu
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - C Y Wei
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - W P Yang
- Department of Ultrasound Diagnosis, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - Q H Qin
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - Q X Tan
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - Q G Mo
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - Z Huang
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
| | - B Lian
- Department of Breast Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning 530021, China
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Zhang L, Yang WP, Wu LY, Zhu X, Wei CY. Expression and clinical significance of Kelch-like epichlorohydrin-associated protein 1 in breast cancer. Genet Mol Res 2016; 15:gmr7294. [PMID: 27323010 DOI: 10.4238/gmr.15027294] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Our objective was to explore the expression and clinical significance of Kelch-like epichlorohydrin-associated protein 1 (Keap1) in breast cancer tissue. Eighty-one breast cancer patients having undergone surgical treatment in our hospital between March 2002 and December 2008 were enrolled in this study. Normal tissue adjacent to tumors was used for the control samples. Diagnoses for all patients were confirmed by postoperative pathological examination. Immunohistochemical assays were used to measure the expression of Keap1 protein in breast cancer tissue and adjacent normal tissue, and its clinical significance was explored. We observed that 24.6% breast cancer tissue samples were positive for Keap1, a significantly lower proportion than that seen with adjacent normal tissue specimens (80.2%; P < 0.05). The presence of Keap1 expression did not correlate with age, tumor size, pathological classification, or degree of differentiation. However, it was found to be significantly associated with tumor-node-metastasis stage and the presence of lymphatic metastasis. Kaplan-Meier survival analysis showed a remarkably higher five-year survival rate among patients with positive Keap1 expression than in those lacking detectable levels of the protein (P = 0.032). Keap1 expression is significantly decreased in breast cancer tissue; therefore, the early detection of its expression might have great significance in determining prognosis for breast cancer patients.
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Affiliation(s)
- L Zhang
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - W P Yang
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - L Y Wu
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - X Zhu
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
| | - C Y Wei
- Department of Breast Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, China
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Wei CY, Sun X, Wang C, Wang WY. Factors influencing arsenic accumulation by Pteris vittata: a comparative field study at two sites. Environ Pollut 2006; 141:488-93. [PMID: 16236410 DOI: 10.1016/j.envpol.2005.08.060] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2005] [Accepted: 08/19/2005] [Indexed: 05/04/2023]
Abstract
This study compared the factors influencing arsenic (As) accumulation by Pteris vittata at two sites, one containing As along with Au mineralization and the other containing Hg/Tl mineralization. The soils above these two sites contained high As concentrations (26.8-2955 mg kg(-1)). Although the As concentration, pH, soil cation exchange capacity and plant biomass differed significantly between the two sites, no differences were observed in the As concentrations in the fronds and roots, or the translocation factors, of P. vittata, suggesting that this species has consistent As hyperaccumulation properties in the field. The As concentration in the fronds was positively related to phosphorus (P) and potassium (K), but negatively related to calcium (Ca), at one site. This suggested that P, K and Ca influenced As accumulation by P. vittata in the field.
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Affiliation(s)
- C Y Wei
- Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
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Chou PT, Yu WS, Wei CY, Cheng YM, Yang CY. Water-catalyzed excited-state double proton transfer in 3-cyano-7-azaindole: the resolution of the proton-transfer mechanism for 7-azaindoles in pure water. J Am Chem Soc 2001; 123:3599-600. [PMID: 11472134 DOI: 10.1021/ja002975p] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wei YH, Lu CY, Wei CY, Ma YS, Lee HC. Oxidative stress in human aging and mitochondrial disease-consequences of defective mitochondrial respiration and impaired antioxidant enzyme system. CHINESE J PHYSIOL 2001; 44:1-11. [PMID: 11403514] [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: 02/20/2023] Open
Abstract
Respiratory function of mitochondria is compromised in aging human tissues and severely impaired in the patients with mitochondrial disease. A wide spectrum of mitochondrial DNA (mtDNA) mutations has been established to associate with mitochondrial diseases. Some of these mtDNA mutations also occur in various human tissues in an age-dependent manner. These mtDNA mutations cause defects in the respiratory chain due to impairment of the gene expression and structure of respiratory chain polypeptides that are encoded by the mitochondrial genome. Since defective mitochondria generate more reactive oxygen species (ROS) such as O2- and H2O2 via electron leak, we hypothesized that oxidative stress is a contributory factor for aging and mitochondrial disease. This hypothesis has been supported by the findings that oxidative stress and oxidative damage in tissues and culture cells are increased in elderly subjects and patients with mitochondrial diseases. Another line of supporting evidence is our recent finding that the enzyme activities of Cu,Zn-SOD, catalase and glutathione peroxidase (GPx) decrease with age in skin fibroblasts. By contrast, Mn-SOD activity increases up to 65 years of age and then slightly declines thereafter. On the other hand, we observed that the RNA, protein and activity levels of Mn-SOD are increased two- to three-fold in skin fibroblasts of the patients with CPEO syndrome but are dramatically decreased in patients with MELAS or MERRF syndrome. However, the other antioxidant enzymes did not change in the same manner. The imbalance in the expression of these antioxidant enzymes indicates that the production of ROS is in excess of their removal, which in turn may elicit an elevation of oxidative stress in the fibroblasts. Indeed, it was found that intracellular levels of H2O2 and oxidative damage to DNA and lipids in skin fibroblasts from elderly subjects or patients with mitochondrial diseases are significantly increased as compared to those of age-matched controls. Furthermore, Mn-SOD or GPx-1 gene knockout mice were found to display neurological disorders and enhanced oxidative damage similar to those observed in the patients with mitochondrial disease. These observations are reviewed in this article to support that oxidative stress elicited by defective respiratory function and impaired antioxidant enzyme system plays a key role in the pathophysiology of mitochondrial disease and human aging.
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Affiliation(s)
- Y H Wei
- Department of Biochemistry, National Yang-Ming University, Taipei, Taiwan, ROC.
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Wei CY, Hwang JJ, Chu CH, Lee CP. Detection and identification of Mycobacterium tuberculosis by nested PCR assays in cerebrospinal fluid samples from patients with suspected tuberculous meningitis. Kaohsiung J Med Sci 1999; 15:475-83. [PMID: 10518364] [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: 02/14/2023] Open
Abstract
We used the nested polymerase chain reaction (PCR) assays developed previously to detect and identify Mycobacterium tuberculosis (M. tuberculosis) in the cerebrospinal fluid (CSF) samples from patients with suspected tuberculous meningitis and non-tuberculous patients. Our nested PCR assays target the multi-copy IS6110 insertion element and the single-copy mtp40 genomic DNA of M. tuberculosis. These assays, when used in combination, allowed us to detect a very low number of M. tuberculosis in the CSF samples, which otherwise would be undetectable by the culture method, and to distinguish M. tuberculosis from M. bovis. We applied these nested PCR assays to analyze eleven CSF samples. Among these, five of them were from patients with suspected tuberculous meningitis but all except one were culture negative. Our results of PCR assays show that three of these five are M. tuberculosis positive, one of which is M. bovis positive, and only one is M. tuberculosis negative. The other six CSF samples were from the clinically diagnosed non-tuberculous patients. Surprisingly, two of these so called non-tuberculous patients, a subarachnoid hemorrhage (SAH) and the syndrome of inappropriate antidiuretic hormone secretion (SIADH), were shown M. tuberculosis positive. This finding supports a long-standing argument that tuberculous meningitis is one of the causes of these neurological diseases. These nested PCR assays thus provide the neurologists with an important adjunct, in addition to the patient's clinical presentation and laboratory data, for the diagnosis of tuberculous meningitis.
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Affiliation(s)
- C Y Wei
- Department of Neurology, Tzu Chi General Hospital, Hualien, Taiwan, Republic of China
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Wei CY, Lee CN, Chu CH, Hwang JJ, Lee CP. Determination of the sensitivity and specificity of PCR assays using different target dnas for the detection of Mycobacterium tuberculosis. Kaohsiung J Med Sci 1999; 15:396-405. [PMID: 10465921] [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: 02/13/2023] Open
Abstract
To establish a sensitive, specific and reproducible PCR assay for the detection of Mycobacterium tuberculosis, we evaluated three target DNAs: IS6110, 65 kDa heat shock protein gene; and mtp40 genomic fragment. We purified genomic DNA from 15 mycobacterial strains including four M. tuberculosis isolates, four M. bovis BCG isolates, and one of each for M. fortuitum, M. avium, M. intracellulare, M. szulgai, M. scrofulaceum, M. chelonei, and M. gordonae from the culture and used them as the template DNA. We studied 3 primer sets for IS6110, 2 primer sets for 65 kDa, and 3 primer sets for mtp40. Depending on the assay, these primer sets were used in the single-step PCR and/or nested PCR. The PCR assay targeting the 65 kDa protein gene could detect all of the tested mycobacterial strains, whereas targeting the IS6110 sequence resulted in detection of only M. tuberculosis and M. bovis BCG. Furthermore, targeting the mtp40 genomic fragment could be used to distinguish M. tuberculosis from M. bovis BCG. Using a nested PCR assay with primer sets specifically targeting the IS6110 or 65 kDa, we have been able to detect single copy M. tuberculosis genomic DNA. When the mtp40 genomic fragment was used as the target DNA, the sensitivity of detection was 10 copies of M. tuberculosis genomic DNA. This assay was demonstrated to have good sensitivity and specificity for detection and discrimination of mycobacterial species, and could be used in analyzing the clinical samples with low copy number infections such as the cerebrospinal fluid from the patient with tuberculous meningitis.
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Affiliation(s)
- C Y Wei
- Department of Neurology, Tzu Chi General Hospital, Hualien, Taiwan, Republic of China
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22
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Lin IJ, Che MJ, Yeh A, Hwang JJ, Wei CY, Tsao WL, Lee CP. Comparison of the sensitivity and specificity of an automatic ligase chain reaction assay system with a one-step polymerase chain reaction assay in the diagnosis of Mycobacterium tuberculosis complex. Changgeng Yi Xue Za Zhi 1999; 22:204-11. [PMID: 10493024] [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: 04/13/2023]
Abstract
BACKGROUND Polymerase chain reaction (PCR) and ligase chain reaction (LCR) are two nucleic acid amplification-based molecular methods. The former has been used widely in the identification of Mycobacterium tuberculosis (M. tuberculosis). In contrast, the LCR assay which was recently introduced is not well known in our medical communities in Taiwan. To determine which method is more reliable and suitable for the identification of M. tuberculosis in our clinics, we compared the sensitivity and specificity of these two methods. METHODS An automatic LCR assay system and a manual one-step PCR assay were studied in a side by side comparison of their performance in detection of M. tuberculosis. The automatic LCR system uses the single copy antigen protein b (Pab) gene and the manual one-step PCR assay uses the multi-copy IS6110 insertion element as the target DNA; both target DNA sequences are found specifically in M. tuberculosis complex. RESULTS Both assays detected two of the M. tuberculosis complex strains, M. tuberculosis and M. bovis, but not other mycobacterial strains. In addition, both methods, which were based on different amplification principles, showed compatible sensitivity; as low as 10 and 100 copies of M. tuberculosis genomes were detected by the LCR and PCR assays, respectively. When the template DNA was less than 1000 copies, however, the automatic LCR assay system showed a lower reproducibility than that of the one-step PCR assay. CONCLUSION Our results suggest that in addition to the PCR assay, the LCR assay is a useful method for the molecular identification of M. tuberculosis complex strains.
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Affiliation(s)
- I J Lin
- Department of Medical Technology, Tzu Chi College of Medicine and Humanities, Abbott Laboratories, Taiwan, R.O.C
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Abstract
29 consecutive patients treated for reconstruction of various scalp defects with 30 free flaps were reviewed. The scalp defects resulted from accidents (13), electric burns (4), tumour excision (8), chronic osteomyelitis (1), and osteoradionecrosis (1). Secondary reconstructions for cosmetic improvement were performed in 2 patients. The defects involved scalp with bone exposure in 21 patients, and both scalp and calvarium in 8 patients. The average extent of the defects was 130 cm2 (23-420 cm2). Free flaps employed for reconstruction included radial forearm flaps (15), latissimus dorsi muscle flaps (10), medial arm flaps (2), juri flap (1), rectus abdominis muscle flap (1), and scapular flap (1). In 6 cases bone grafts were used for skull reconstruction. Three patients required dura repair. There were two flap failures. Donor-site morbidity was negligible. No local recurrence occurred in 7 tumour cases who are still alive. Secondary procedures (tissue expansion, debulking) were performed in 6 patients. The authors recommend selection of reconstructive options for scalp defects according to their aetiology, localisation, and duration of treatment, whereas the size of the defect dose not seem to be the most important determinant. They conclude that a free flap procedure is appropriate for scalp reconstruction in trauma, osteomylitis, and osteoradionecrosis cases, and following radical resection of malignant tumours.
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Affiliation(s)
- B S Lutz
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital and Medical College, Taipei, Taiwan
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Niklason LT, Christian BT, Niklason LE, Kopans DB, Castleberry DE, Opsahl-Ong BH, Landberg CE, Slanetz PJ, Giardino AA, Moore R, Albagli D, DeJule MC, Fitzgerald PF, Fobare DF, Giambattista BW, Kwasnick RF, Liu J, Lubowski SJ, Possin GE, Richotte JF, Wei CY, Wirth RF. Digital tomosynthesis in breast imaging. Radiology 1997; 205:399-406. [PMID: 9356620 DOI: 10.1148/radiology.205.2.9356620] [Citation(s) in RCA: 596] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE To describe and evaluate a method of tomosynthesis breast imaging with a full-field digital mammographic system. MATERIALS AND METHODS In this tomosynthesis method, low-radiation-dose images were acquired as the x-ray source was moved in an arc above the stationary breast and digital detector. A step-and-expose method of imaging was used. Breast tomosynthesis and conventional images of two imaging phantoms and four mastectomy specimens were obtained. Three experienced readers scored the relative lesion visibility, lesion margin visibility, and confidence in the classification of six lesions. RESULTS Tomosynthesis image-reconstruction algorithms allow tomographic imaging of the entire breast from a single arc of the x-ray source and at a radiation dose comparable with that in single-view mammography. Except for images of a large mass in a fatty breast, the tomosynthesis images were superior to the conventional images. CONCLUSION Digital mammographic systems make breast tomosynthesis possible. Tomosynthesis may improve the specificity of mammography with improved lesion margin visibility and may improve early breast cancer detection, especially in women with radiographically dense breasts.
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Affiliation(s)
- L T Niklason
- Department of Radiological Sciences, Massachusetts General Hospital, Harvard Medical School, Boston 02114, USA
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Zeng G, Wei CY. [Challenges for the prevention of communicable diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 1997; 18:67-9. [PMID: 9812499] [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: 02/09/2023]
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26
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Wei CY. [Study of the reasons for spread of communicable diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 1997; 18:102-5. [PMID: 9812510] [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: 02/09/2023]
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Wei CY. [Mobilizing the whole nation to take part in the prevention of diarrhea in China]. Zhonghua Liu Xing Bing Xue Za Zhi 1996; 17:259-60. [PMID: 9387568] [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: 02/05/2023]
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Abstract
A case of adrenal cortical carcinoma with inferior vena cava (IVC) involvement is presented. Ultrasonography, computed tomography, and venacavography all presumptively showed a large mass over the upper pole of the left kidney with tumor thrombus in the IVC. However, aortography demonstrated that this mass was receiving its blood supply from the left inferior phrenic artery, aorta, and left renal artery. Radical surgery, including resection of the tumor and its adjacent organs (kidney, distal pancreas, spleen) and the tumor thrombus in the IVC, with the aid of cardiopulmonary bypass, was performed. We emphasize that adrenal cortical carcinoma can have tumor thrombi invading the IVC, and in such cases we suggest radical surgical removal of the tumor and the thrombus.
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Affiliation(s)
- C Y Wei
- Department of Surgery, Veterans General Hospital-Taipei, Taiwan, Republic of China
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Abstract
In the 10-year period from June 1985 to December 1994, 54 free rectus femoris muscle or musculocutaneous flaps were performed at our hospital. It has been one of the most frequently used free muscle flaps in our institution and forms 2% of all free tissue transfers (total, 2,769 cases). In 26 patients, it was used for large wound coverage following debridement or tumor ablation, and in 27 patients, as a functioning free muscle transplantation for brachial plexus palsy or traumatic muscle loss. In one patient the components of the deep aponeurosis, muscle, and overlying skin were used for reconstruction of an abdominal wall defect after neurilemmoma excision. There were two complete failures, one due to diabetic foot infection and one due to venous occlusion. Four had superficial marginal skin necrosis. No significant disability of the donor limb was encountered. Easy approach, rapid harvest, large and reliable overlying skin flap, a single dominant neurovascular pedicle (with large vessel diameter and long motor nerve), easy primary closure of the donor site, and minimal donor site morbidity all make the rectus femoris flap a good alternative flap for free tissue transfer, in addition to the gracilis, rectus abdominis, and latissimus dorsi muscle flap.
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Affiliation(s)
- C Y Wei
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Chang Gung Medical College, Taipei, Taiwan, Republic of China
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Wei CY, Yeh GP, Chen HF, Wang LY, Lin CY. Enzyme inhibitory assay using monoclonal antibody against acid alpha-D-glucosidase in prenatal diagnosis to identify homozygotes of Pompe's disease. Zhonghua Min Guo Xiao Er Ke Yi Xue Hui Za Zhi 1992; 33:104-11. [PMID: 1514400] [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: 12/27/2022]
Abstract
From January 1985 to January 1990, measurements of acid alpha-D-glucosidase activity in amniocytes or chorionic villus samplings were done for 24 pregnant mothers who were carriers of Pompe's disease. 6 women had two subsequent pregnancies. Amniotic fluid was obtained by transabdominal amniocentesis performed on 10 of them, while chorionic villus samplings were obtained in the other 20. The results showed that 7 (23.3%) cases were homozygotes, 16 (53.4%) cases were heterozygotes, and 7 (23.3%) cases were normal. Pregnancies were terminated in the homozygotic group. Final diagnosis was confirmed by either skin fibroblast culture or clinical course. However, we found that there was overlap in the acid alpha-D-glucosidase activity of amniocytes between homozygotes and heterozygotes due to residual activity of neutral alpha-D-glucosidase. In an attempt to identify heterozygotes for Pompe's disease, we established an enzyme inhibitory assay using monoclonal antibody (mAb) against acid alpha-D-glucosidase. Comparing the differences in alpha-D-glucosidase activity before and after mAb treatment the homozygotes were significantly lower than heterozygotes (P less than 0.001). There was no more overlap in the difference of acid alpha-D-glucosidase activity before and after mAb treatment between heterozygotes and homozygotes in amniocytes. This modified enzyme inhibitory assay should facilitate homozygote detection. Comparing acid alpha-D-glucosidase activity between CVS and amniocytes, the enzyme activity in CVS is about 5 times higher than in amniocytes. There was no overlap in the acid alpha-D-glucosidase activity between homozygotes and heterozygotes. Therefore, CVS is better than amniocentesis in the prenatal diagnosis of Pompe's disease.
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Affiliation(s)
- C Y Wei
- Department of Pediatrics, Veterans General Hospital, Taipei, Taiwan, R.O.C
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Wei CY. [The present status and methods of control of diarrhea]. Zhonghua Liu Xing Bing Xue Za Zhi 1987; 8:49-53. [PMID: 3040256] [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: 01/03/2023]
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Wei CY. [Misdiagnosis of tuberculous meningitis in adults: an analysis of 26 cases]. Zhonghua Jie He He Hu Xi Xi Ji Bing Za Zhi 1984; 7:70-1. [PMID: 6489049] [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: 01/20/2023]
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