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Zou TH, Gao QY, Liu SD, Li YQ, Meng XJ, Zhang GX, Tian ZB, Zou XP, He S, Hou XH, Lin R, Li JN, Zhou ZY, Li Y, Wang MC, Wang BM, Tian DA, Chen SJ, Cao Q, Li LP, Wang ZR, Shen XZ, Liu BR, Yan XY, Chen YX, Fang JY. Effectiveness and safety of Moluodan in the treatment of precancerous lesions of gastric cancer: A randomized clinical trial. J Dig Dis 2024; 25:27-35. [PMID: 38342693 DOI: 10.1111/1751-2980.13251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/09/2024] [Accepted: 01/14/2024] [Indexed: 02/13/2024]
Abstract
OBJECTIVE To investigate the clinical potential and safety of Moluodan to reverse gastric precancerous lesions. METHODS Patients aged 18-70 years diagnosed with moderate-to-severe atrophy and/or moderate-to-severe intestinal metaplasia, with or without low-grade dysplasia, and negative for Helicobacter pylori were recruited in this randomized, double-blind, parallel-controlled trial. The primary outcome was the improvement of global histological diagnosis at 1-year follow-up endoscopy using the operative link for gastritis assessment, the operative link for gastric intestinal metaplasia assessment, and the disappearance rate of dysplasia. RESULTS Between November 3, 2017 and January 27, 2021, 166 subjects were randomly assigned to the Moluodan group, 168 to the folic acid group, 84 to the combination group, and 84 to the high-dose Moluodan group. The improvement in global histological diagnosis was achieved in 60 (39.5%) subjects receiving Moluodan, 59 (37.8%) receiving folic acid, 26 (32.1%) receiving the combined drugs, and 36 (47.4%) receiving high-dose Moluodan. Moluodan was non-inferior to folic acid (95% confidence interval: -9.2 to 12.5; P = 0.02). High-dose Moluodan had a trend for better protective efficacy, though there was no statistical significance. The disappearance rate of dysplasia was 82.8% in the Moluodan group, which was superior to folic acid (53.9%; P = 0.006). No drug-related serious adverse events were observed. CONCLUSIONS One pack of Moluodan three times daily for 1 year was safe and effective in reversing gastric precancerous lesions, especially dysplasia. Doubling its dose showed a better efficacy trend.
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Affiliation(s)
- Tian Hui Zou
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory of Systems Medicine for Cancer, NHC Key Laboratory of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qin Yan Gao
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory of Systems Medicine for Cancer, NHC Key Laboratory of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Si De Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yan Qing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiang Jun Meng
- Department of Gastroenterology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai Key Laboratory of Gut Microecology and Associated Major Diseases Research; Center for Digestive Diseases Research and Clinical Translation of Shanghai Jiaotong University, Shanghai, China
| | - Guo Xin Zhang
- Department of Gastroenterology and Hepatology, Jiangsu Province Hospital, Nanjing, Jiangsu Province, China
| | - Zi Bin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Xiao Ping Zou
- Division of Gastroenterology and Hepatology, The Affiliated Drum Tower of Nanjing University Medical School, Nanjing, Jiangsu Province, China
| | - Song He
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiao Hua Hou
- Department of Gastroenterology and Hepatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Rong Lin
- Department of Gastroenterology and Hepatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Jing Nan Li
- Department of Gastroenterology and Hepatology, Peking Union Medical College Hospital, Beijing, China
| | - Zhong Yin Zhou
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Yan Li
- Department of Gastroenterology and Hepatology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Meng Chun Wang
- Department of Gastroenterology and Hepatology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Bang Mao Wang
- Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
| | - De An Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Shu Jie Chen
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Qian Cao
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Liang Ping Li
- Department of Digestive Diseases, Sichuan Provincial People's Hospital, Chengdu, Sichuan Province, China
| | - Zhi Rong Wang
- Department of Gastroenterology, Tongji Hospital of Tongji University, Shanghai, China
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Bing Rong Liu
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Xiao Yan Yan
- Department of Biostatistics, Peking University Clinical Research Institute, Beijing, China
| | - Ying Xuan Chen
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory of Systems Medicine for Cancer, NHC Key Laboratory of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing-Yuan Fang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, State Key Laboratory of Systems Medicine for Cancer, NHC Key Laboratory of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Guo HY, Yu XN, Zhang GC, Yin J, Dong L, Liu TT, Qian ZP, Zhu JM, Shen XZ. Increased expression of autophagy-related gene 5 indicates poor prognosis in patients with hepatocellular carcinoma. J Dig Dis 2023; 24:399-407. [PMID: 37596850 DOI: 10.1111/1751-2980.13220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 08/13/2023] [Accepted: 08/16/2023] [Indexed: 08/20/2023]
Abstract
OBJECTIVES As a critical component of the autophagic machinery, autophagy-related gene 5 (ATG5) is essential for autophagosome formation. Autophagy participates in the transformation and progression of various malignant tumors, but the role of ATG5 in hepatocellular carcinoma (HCC) remains to be illustrated. In this study we aimed to investigate the prognostic significance of ATG5 in HCC. METHODS ATG5 expression was evaluated in 89 pairs of HCC tissues and adjacent non-tumor tissues. The relationship between ATG5 expression and patients' clinicopathological characteristics and prognosis were evaluated. Moreover, subgroup analyses were performed regarding patients' age and number of tumors. Nomograms estimating overall survival (OS) and disease-free survival (DFS) were conducted. RESULTS ATG5 expression was increased in HCC specimens rather than adjacent non-tumor tissues. The upregulated ATG5 expression was positively associated with serum α-fetoprotein (AFP) level. Moreover, cases with a strong ATG5 expression had a poorer disease-free survival (DFS) and overall survival (OS) than those with a weak ATG5 expression. Multivariate analysis showed that a strong expression of ATG5 was related to a poor OS and DFS in patients with HCC. Further analysis indicated that cases with a higher ATG5 expression had a poorer OS and DFS in the young patients (≤55 years) and those with solitary tumor. The nomogram suggested that there was a coherence between nomogram prediction and the actual situation of patient survival related to ATG5. CONCLUSION ATG5 promotes tumor progression in HCC, making it a potential biomarker in the diagnosis and a therapeutic target of HCC.
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Affiliation(s)
- Hong Ying Guo
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
- Department of Severe Hepatitis, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Xiang Nan Yu
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guang Cong Zhang
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie Yin
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ling Dong
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tao Tao Liu
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhi Ping Qian
- Department of Severe Hepatitis, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Ji Min Zhu
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xi Zhong Shen
- Department of Gastroenterology and Hepatology, Shanghai Institute of Liver Diseases, Zhongshan Hospital, Fudan University, Shanghai, China
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Liang L, Jiang W, Zheng Y, Liu TS, Shen XZ, Chen YJ. Integrating tumor mutational burden and transcriptome expression into prediction of immune checkpoint inhibitor response and prognosis of patients with colon cancer. J Physiol Pharmacol 2022; 73. [PMID: 35988929 DOI: 10.26402/jpp.2022.2.04] [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] [Received: 02/25/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
Whether tumor mutational burden (TMB), which refers to the total number of somatic or acquired mutations per million bases in a particular region of the tumor genome, can serve as a predictive biomarker of immune checkpoint inhibitor (ICI) therapy for colon cancer remains unclear. Hereby, we retrospectively investigated the differentially expressed genes (DEGs) based on the level of TMB and tried to established a risk score model as a novel biomarker. The DNA mutation data were retrieved from the Masked Somatic Mutation in Genomic Data Commons data portal of the Cancer Genome Atlas, where the RNA sequencing data, clinical information, and survival outcomes of patients were downloaded. Patients with incomplete clinical information were excluded. The immune score and stromal score were calculated to investigate immune infiltration. The patients were grouped into TMB-high group and the TMB-low group based on the median value of TMB. An immune relevant gene set was obtained from the Immunology Database and Analysis Portal to identify immune-related DEGs. The Cox proportional hazard model and nomogram were applied to establish the risk model. In results: the TMB value was associated with age (p≤0.001), clinical stage (p≤0.001), N stage (p≤0.001), M stage (p=0.003), and immune score (p≤0.001). Twenty-nine immune-related DEGs were identified as enriched in immune response-related function or pathway and tumorigenesis signaling. Nine of 29 were determined to establish a riskScore model. The riskScore suggested a positive relationship with the TMB value (p=0.033), immune score (p≤0.001), and tumor immune dysfunction and exclusion (TIDE) (p=0.002) and presented an independent prognostic factor (p≤0.001, HR=1.04), which predicted the overall survival with good specificity. We concluded that the combination of TMB with transcriptome expression has a predictive and prognostic value for patients treated with ICIs.
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Affiliation(s)
- L Liang
- Department of Medical Oncology, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
- Cancer Center, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
- Center of Evidence Medicine, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
| | - W Jiang
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
- Department of Gastroenterology, Xiamen Branch, Zhongshan Hospital of Fudan University, Xiamen, Huli District, Fujian, People's Republic of China
| | - Y Zheng
- Department of Gastroenterology, Xiamen Branch, Zhongshan Hospital of Fudan University, Xiamen, Huli District, Fujian, People's Republic of China
| | - T S Liu
- Department of Medical Oncology, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
- Cancer Center, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
- Center of Evidence Medicine, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
| | - X Z Shen
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China
| | - Y J Chen
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Xuhui District, Shanghai, People's Republic of China.
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Peng LH, Fang JY, Dai N, Shen XZ, Yang YL, Sun J, Yang YS. Efficacy and safety of linaclotide in patients with irritable bowel syndrome with constipation: Chinese sub-cohort analysis of a phase III, randomized, double-blind, placebo-controlled trial. J Dig Dis 2022; 23:99-110. [PMID: 35019221 PMCID: PMC9314117 DOI: 10.1111/1751-2980.13081] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To conduct a sub-cohort analysis to evaluate the efficacy and safety of linaclotide in Chinese patients with constipation-predominant irritable bowel syndrome (IBS-C) using data from a completed trial (NCT01880424). METHODS In this phase III, double-blind, placebo-controlled trial, IBS-C patients were randomized to receive linaclotide (290 μg/d) or placebo for 12 weeks. Efficacy was assessed with two co-primary responder end-points (12-wk abdominal pain/discomfort: ≥30% reduction in either score with neither deteriorating from baseline for ≥6 wks; 12-wk IBS degree of relief: score ≤2 for ≥ 6 wks), seven secondary endpoints and several additional end-points. RESULTS In total, 659 Chinese IBS-C patients received linaclotide (n = 327) or placebo (n = 332). The 12-week abdominal pain/discomfort end-point was met in 62.1% and 53.3% of the linaclotide-treated and placebo-treated patients, respectively (odds ratio [OR] 1.43, 95% confidence interval [CI] 1.05-1.96, P = 0.023); the 12-week IBS degree of relief end-point was achieved in 32.7% and 16.9% of the patients treated with linaclotide and placebo, respectively (OR 2.40, 95% CI 1.66-3.47, P < 0.001). The linaclotide-treated patients had a shorter time to the first spontaneous bowel movement than the placebo-treated patients (23.6 h vs 43.7 h, P < 0.001). Linaclotide produced significantly greater improvement than placebo in all secondary end-points from the first 2 weeks (all P < 0.001). Diarrhea was reported in 8.3% of linaclotide-treated patients and 1.2% of placebo-treated patients. CONCLUSION Linaclotide (290 μg/d) was efficacious and well-tolerated in Chinese IBS-C patients with a rapid onset of effect.
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Affiliation(s)
- Li Hua Peng
- Department of Gastroenterology and Hepatology, The First Medical CenterChinese PLA General HospitalBeijingChina
| | - Jing Yuan Fang
- State Key Laboratory for Oncogenes and Related Genes, Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Division of Gastroenterology and HepatologyShanghai Cancer Institute, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong UniversityShanghaiChina
| | - Ning Dai
- Department of Gastroenterology, Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang ProvinceChina
| | - Xi Zhong Shen
- Department of GastroenterologyZhongshan Hospital, Fudan UniversityShanghaiChina
| | - You Lin Yang
- Department of GastroenterologyThe First Affiliated Hospital of Harbin Medical UniversityHarbinHeilongjiang ProvinceChina
| | - Jing Sun
- Department of GastroenterologyRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yun Sheng Yang
- Department of Gastroenterology and Hepatology, The First Medical CenterChinese PLA General HospitalBeijingChina
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Xiao YL, Dai N, He SX, Tian DA, Liu SD, Tian ZB, Wang XY, Li YQ, Hou XH, Fang XC, Wen ZL, Zeng WZ, Xu H, Sun MJ, Liu YL, Wu YD, Shen XZ, Liu XW, Liu DL, Chen MH. Efficacy and safety of lubiprostone for the treatment of functional constipation in Chinese adult patients: A multicenter, randomized, double-blind, placebo-controlled trial. J Dig Dis 2021; 22:622-629. [PMID: 34633753 DOI: 10.1111/1751-2980.13058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/12/2021] [Accepted: 10/03/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Functional constipation is a gastrointestinal disorder prevalent around the world. Lubiprostone is the first locally acting type-2 chloride channel activator to be used for treating constipation. This study aimed to evaluate the efficacy and safety of lubiprostone in Chinese adults with functional constipation. METHODS This was a multicenter, randomized, double-blind, placebo-controlled study. Patients with functional constipation were randomized to receive either lubiprostone (24 mcg twice daily) or placebo for 4 weeks. The primary end-point was the frequency of spontaneous bowel movements (SBMs) during the first week of treatment. The secondary end-points included the median time of the first SBM, SBM frequency at weeks 2, 3 and 4, weekly response rate of SBMs, the stool consistency score and average number of complete spontaneous bowel movements (CSBMs) per week. RESULTS In total, 259 patients were randomized, with 130 in the lubiprostone group and 129 in the placebo group. SBM frequency was higher in the lubiprostone group (4.88 ± 4.09/wk) than that in the placebo group (3.22 ± 2.01/wk) at week 1 (P < 0.0001). SBM frequency was also higher in the lubiprostone group at weeks 2, 3 and 4. The average number of CSBMs and the stool consistency score in the lubiprostone group were significantly higher than that in the placebo group at each week. No drug-related serious adverse events (AEs) occurred. The most commonly reported AE was nausea. CONCLUSION Lubiprostone was superior to placebo in treating Chinese patients with functional constipation, together with good safety profile.
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Affiliation(s)
- Ying Lian Xiao
- Department of Gastroenterology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
| | - Ning Dai
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Shui Xiang He
- Department of Gastroenterology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - De An Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Si De Liu
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zi Bin Tian
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Xiao Yan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Yan Qing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong Province, China
| | - Xiao Hua Hou
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xiu Cai Fang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China
| | - Zhi Li Wen
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Wei Zheng Zeng
- Department of Gastroenterology, General Hospital of the Western Theater of Chinese People's Liberation Army, Chengdu, Sichuan Province, China
| | - Hong Xu
- Department of Gastroenterology, The First Bethune Hospital of Jilin University, Changchun, Jilin Province, China
| | - Ming Jun Sun
- Department of Gastroenterology, The First Hospital of China Medical University, Shenyang, Liaoning Province, China
| | - Yu Lan Liu
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - Yong Dong Wu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiao Wei Liu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, Hunan Province, China
| | - De Liang Liu
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China
| | - Min Hu Chen
- Department of Gastroenterology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong Province, China
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Wang YF, Yang CQ, Chen YX, Cao AP, Yu XF, Yu Y, Zhang ZY, Shen XZ, Liu F, Zhong L, Wang YX, Liu ZJ, Shi YH, Zhong J, Li JN, Lan Y, Lenham RK, Woodcock AD, Dettmar PW, Fang J. Validation in China of a non-invasive salivary pepsin biomarker containing two unique human pepsin monoclonal antibodies to diagnose gastroesophageal reflux disease. J Dig Dis 2019; 20:278-287. [PMID: 31090180 PMCID: PMC6851552 DOI: 10.1111/1751-2980.12783] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 04/11/2019] [Accepted: 05/13/2019] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Peptest is a new non-invasive reflux diagnostic test based on lateral flow technology that containing two highly specific human pepsin monoclonal antibodies for detecting pepsin, a biomarker for reflux disease. The primary aim of this multicenter clinical study was to validate the efficacy of Peptest in patients diagnosed with gastroesophageal reflux and healthy controls in China. METHODS Patients with suspected gastroesophageal reflux underwent an endoscopy and were classified into non-erosive reflux disease and erosive esophagitis subgroups. A healthy control group was also recruited. All participants were given a reflux disease questionnaire-patients scoring greater than 12 and controls scoring zero. All participants provided a postprandial saliva sample and most patients gave an additional post-symptom sample for pepsin analysis. RESULTS Altogether 1032 participants aged between 19 and 78 years were recruited. They consisted of 488 patients with non-erosive reflux disease, 221 with erosive esophagitis and 323 healthy controls. The number of postprandial and post-symptom samples analyzed totaled 1031 and 692, respectively. The results across all centers showed an overall pepsin-positive sensitivity of 85%, a specificity of 60%, a positive predictive value of 82%, a negative predictive value of 65% and a positive likelihood ratio of 2.12. CONCLUSION The sensitivity of Peptest was high, but the specificity achieved in some centers was low, resulting overall in only a moderate specificity. Further diagnostic investigative studies are warranted.
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Affiliation(s)
- Yong Feng Wang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Chang Qing Yang
- Department of Gastroenterology and Hepatology, Tongji HospitalTongji University School of MedicineShanghaiChina
| | - Ying Xuan Chen
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Ai Ping Cao
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Xiao Feng Yu
- Department of GastroenterologyHuadong Hospital Affiliated to Fudan UniversityShanghaiChina
| | - Yang Yu
- Department of GastroenterologyHuadong Hospital Affiliated to Fudan UniversityShanghaiChina
| | - Zi Yan Zhang
- Department of GastroenterologyHuadong Hospital Affiliated to Fudan UniversityShanghaiChina
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan HospitalFudan UniversityShanghaiChina
| | - Fei Liu
- Department of GastroenterologyShanghai East Hospital Affiliated to Tongji UniversityShanghaiChina
| | - Lan Zhong
- Department of GastroenterologyShanghai East Hospital Affiliated to Tongji UniversityShanghaiChina
| | - Ying Xin Wang
- Department of Gastroenterology and Hepatology, Tongji HospitalTongji University School of MedicineShanghaiChina
| | - Zhan Ju Liu
- Department of GastroenterologyShanghai Tenth People's Hospital of Tongji UniversityShanghaiChina
| | - Yan Hong Shi
- Department of GastroenterologyShanghai Tenth People's Hospital of Tongji UniversityShanghaiChina
| | - Jie Zhong
- Department of Gastroenterology, Ruijin Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
| | - Jing Nan Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijingChina
| | - Yu Lan
- Department of GastroenterologyBeijing Jishuitan HospitalBeijingChina
| | | | | | | | - Jing‐Yuan Fang
- Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Shanghai Institute of Digestive Disease, Renji Hospital, School of MedicineShanghai Jiao Tong UniversityShanghaiChina
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Chen YY, Luo J, Xie GH, Shen XZ. [Cranial fascitis: report of a case]. Zhonghua Bing Li Xue Za Zhi 2018; 47:963-965. [PMID: 30522183 DOI: 10.3760/cma.j.issn.0529-5807.2018.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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Mo MZ, Chen Z, Li RK, Dunning M, Witte BBL, Baldwin JK, Fletcher LB, Kim JB, Ng A, Redmer R, Reid AH, Shekhar P, Shen XZ, Shen M, Sokolowski-Tinten K, Tsui YY, Wang YQ, Zheng Q, Wang XJ, Glenzer SH. Heterogeneous to homogeneous melting transition visualized with ultrafast electron diffraction. Science 2018; 360:1451-1455. [PMID: 29954977 DOI: 10.1126/science.aar2058] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 05/01/2018] [Indexed: 11/02/2022]
Abstract
The ultrafast laser excitation of matters leads to nonequilibrium states with complex solid-liquid phase-transition dynamics. We used electron diffraction at mega-electron volt energies to visualize the ultrafast melting of gold on the atomic scale length. For energy densities approaching the irreversible melting regime, we first observed heterogeneous melting on time scales of 100 to 1000 picoseconds, transitioning to homogeneous melting that occurs catastrophically within 10 to 20 picoseconds at higher energy densities. We showed evidence for the heterogeneous coexistence of solid and liquid. We determined the ion and electron temperature evolution and found superheated conditions. Our results constrain the electron-ion coupling rate, determine the Debye temperature, and reveal the melting sensitivity to nucleation seeds.
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Affiliation(s)
- M Z Mo
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
| | - Z Chen
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - R K Li
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M Dunning
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - B B L Witte
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.,Institut für Physik, Universität Rostock, 18051 Rostock, Germany
| | - J K Baldwin
- Los Alamos National Laboratory, Bikini Atoll Road, Los Alamos, NM 87545, USA
| | - L B Fletcher
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - J B Kim
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - A Ng
- Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - R Redmer
- Institut für Physik, Universität Rostock, 18051 Rostock, Germany
| | - A H Reid
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - P Shekhar
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - X Z Shen
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - M Shen
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - K Sokolowski-Tinten
- Faculty of Physics and Centre for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Lotharstrasse 1, D-47048 Duisburg, Germany
| | - Y Y Tsui
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - Y Q Wang
- Los Alamos National Laboratory, Bikini Atoll Road, Los Alamos, NM 87545, USA
| | - Q Zheng
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - X J Wang
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - S H Glenzer
- SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA.
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9
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Bilegsaikhan E, Liu HN, Shen XZ, Liu TT. Circulating miR-338-5p is a potential diagnostic biomarker in colorectal cancer. J Dig Dis 2018; 19:404-410. [PMID: 29952077 DOI: 10.1111/1751-2980.12643] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/12/2018] [Accepted: 06/25/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The expression of miR-338-5p has been reported to be upregulated in colorectal cancer (CRC) tissues. Clinicopathological features indicate that miR-338-5p overexpression correlates with the metastatic status of CRC. This study was aimed to investigate the diagnostic value of serum miR-338-5p for CRC. METHODS Peripheral blood samples were collected from 210 participants, including 80 patients with CRC, 50 with colorectal polyps and 80 healthy controls. Serum miR-338-5p was quantified by quantitative reverse-transcription polymerase chain reaction. The area under the receiver operating characteristic curve (AUROC) was used to estimate the diagnostic value of miR-338-5p, carcinoembryonic antigen (CEA) and the combination of these two biomarkers. RESULTS Serum miR-338-5p levels (fold change) in patients with CRC and colorectal polyps, and controls were 4.94 ± 1.13, 4.12 ± 0.75 and 3.07 ± 0.75, respectively. Significant differences were observed between the groups (P < 0.001). The AUROC of miR-338-5p was 0.923 (95% CI 0.882-0.964) and 0.845 (95% CI 0.792-0.898), respectively, for distinguishing CRC from healthy controls or from those without CRC. The AUROC of the combination of miR-338-5p and CEA was 0.932 (95% CI 0.882-0.964), with a sensitivity of 85%, a specificity of 88.8% at a cut-off value of 8.16. CONCLUSIONS Circulating miR-338-5p may serve as a potential noninvasive diagnostic biomarker for detecting CRC. The combination of miR-338-5p and CEA exhibits the highest diagnostic value in our study.
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Affiliation(s)
| | - Hai Ning Liu
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Shanghai, China.,Shanghai Institute of Liver Diseases, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Tao Tao Liu
- Department of Gastroenterology, Zhongshan Hospital of Fudan University, Shanghai, China
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10
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Fang Y, He J, Janssen HLA, Wu J, Dong L, Shen XZ. Peroxiredoxin 1, restraining cell migration and invasion, is involved in hepatocellular carcinoma recurrence. J Dig Dis 2018; 19:155-169. [PMID: 29377617 DOI: 10.1111/1751-2980.12580] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 01/15/2018] [Accepted: 01/23/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Hepatocellular carcinoma (HCC) is a high-burden disease. Peroxiredoxin 1 (PRDX1) is a member of the peroxiredoxin family of antioxidant enzymes. The aim of this study was to assess the value of PRDX1 for predicting HCC recurrence after curative resection and to explore the role of PRDX1 in HCC cell migration and invasion. METHODS Data of patients with HCC who had undergone complete resection between 2002 and 2006 were collected. Immunohistochemical detection of PRDX1 in HCC tissue and adjacent non-cancerous tissue was conducted. Kaplan-Meier survival estimate and log-rank test were used to assess the relationship between PRDX1 expression and prognostic significance. HCC cell migration and invasion together with the interaction between PRDX1 and ubiquitin C-terminal hydrolase 37 (UCH37) were studied in vitro. RESULTS PRDX1 was expressed at lower levels in HCC tissues than in adjacent non-cancerous tissues, and PRDX1 was found to be an independent risk factor for disease-free survival and overall survival. PRDX1 restrained cell migration and invasion in vitro. PRDX1 was found to interact with UCH37 to affect HCC cell migration and invasion. CONCLUSION PRDX1 restrains cell migration and invasion in HCC cell lines and that may be involved in a UCH37-relevant pathway, suggesting that PRDX1 may be a new marker for HCC recurrence after surgery.
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Affiliation(s)
- Ying Fang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Juan He
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Harry L A Janssen
- Francis Family Liver Clinic, University of Toronto & University Health Network, Toronto, Canada
| | - Jian Wu
- Key Laboratory of Medical Molecule Virology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ling Dong
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xi Zhong Shen
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Institute of Liver Diseases, Fudan University, Shanghai, China
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11
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Abaker JA, Xu TL, Jin D, Chang GJ, Zhang K, Shen XZ. Lipopolysaccharide derived from the digestive tract provokes oxidative stress in the liver of dairy cows fed a high-grain diet. J Dairy Sci 2016; 100:666-678. [PMID: 27865500 DOI: 10.3168/jds.2016-10871] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [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: 01/08/2016] [Accepted: 07/20/2016] [Indexed: 12/12/2022]
Abstract
The aims of this study were to measure oxidative stress parameters and to investigate the molecular mechanism triggered by grain-induced subacute ruminal acidosis in mid-lactation cows. Twelve Holstein-Friesian cows with an average weight of 455±28kg were divided into 2 groups and subjected to 2 diets over 18wk: either a low-grain (forage-to-concentrate ratio=6:4) or a high-grain (forage-to-concentrate ratio=4:6) diet based on dry matter. Being fed a long-term high-grain diet resulted in a significant decrease in rumen pH and a significant increase in ruminal lipopolysaccharide (LPS) at 4 h postfeeding in the morning. The increase was also observed in LPS concentrations in the portal vein, hepatic vein, and jugular vein blood plasma as well as reduced milk yield in a high-grain diet. Cows fed a high-grain diet had lower levels of catalase and glutathione peroxidase (GPx) activity and total antioxidant capacity than cows fed a low-grain diet; however, super oxide dismutase (SOD) activity and malondialdehyde (MDA) levels were higher in both the liver and the plasma of high-grain than in low-grain cows. Positive correlations were observed between plasma LPS versus hepatic MDA, plasma MDA, and hepatic SOD activity, whereas hepatic GPx and plasma GPx were negatively correlated with plasma LPS. The relative mRNA abundances of GPX1 and CAT were significantly lower in the liver of cows fed a high-grain diet than those fed a low-grain diet, whereas SOD1 was significantly higher in cows fed a high-grain diet than cows fed a low-grain diet. The expression levels of Nrf2, NQO1, MT1E, UGT1A1, MGST3, and MT1A were downregulated, whereas NF-kB was upregulated, in cows fed a high-grain diet. Furthermore, nuclear factor E2-related factor 2 (Nrf2) total protein and mRNA levels were significantly lower than in low-grains. Our results demonstrate the relationship between the translocated LPS and the suppression of cellular antioxidant defense capacity, which lead to increased oxidative stress and suggests that the Nrf2-dependent antioxidant response may be affected by higher levels of LPS translocated to the bloodstream.
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Affiliation(s)
- J A Abaker
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - T L Xu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - D Jin
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - G J Chang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - K Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China
| | - X Z Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P.R. China.
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12
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Peng R, Zhang Y, Zhao GX, Li J, Shen XZ, Wang JY, Sun JY. Differential regulation of the expression of aquaporins 3 and 9 by Auphen and dbcAMP in the SMMC-7721 hepatocellular carcinoma cell line. Biotech Histochem 2016; 91:333-41. [PMID: 27058469 DOI: 10.3109/10520295.2016.1168525] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Aquaglycero-aquaporins (agAQPs) are the structural foundation of rapid water transport and they appear to participate in cancer proliferation and malignancy. AQP3 expression is increased and AQP9 expression is decreased in hepatocellular carcinoma (HCC) compared to normal liver, which suggests their possible use as targets for cancer treatment. AQP-based modifiers, such as Auphen and dibutyryladenosine 3', 5'-cyclic monophosphate (dbcAMP), might be used to treat several diseases and as chemical tools for assessing the functions of AQPs in biological systems. We investigated the effects of both Auphen on AQP3 and dbcAMP on AQP9 in SMMC-7721 cells. We used western blotting, real-time quantitative polymerase chain reaction (qPCR) and immunohistochemistry to evaluate changes in AQP3 and AQP9 expression in SMMC-7721 cells after culturing with Auphen and dbcAMP, respectively. We also determined the proliferation of SMMC-7721 cells. We found that compared to HL-7702 (L02) liver cells, Auphen increased AQP3 expression in tumor cells, whereas dbcAMP decreased expression of AQP9 in these cells. Also, high concentrations of Auphen and dbcAMP inhibited proliferation of SMMC-7721 cells in vitro. Auphen and dbcAMP may inhibit HCC development and could be considered targets for HCC diagnosis and therapy.
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Affiliation(s)
- R Peng
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - Y Zhang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - G X Zhao
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Li
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - X Z Shen
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Wang
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
| | - J Y Sun
- a Department of Gastroenterology , Zhongshan Hospital, Fudan University , Shanghai , China
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13
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Zhao GX, Dong PP, Peng R, Li J, Zhang DY, Wang JY, Shen XZ, Dong L, Sun JY. Expression, localization and possible functions of aquaporins 3 and 8 in rat digestive system. Biotech Histochem 2016; 91:269-76. [DOI: 10.3109/10520295.2016.1144079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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14
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Abstract
In the mammalian genome, approximately 50% of all genes are controlled by promoters with high GC contents. Analyzing the epigenetic mechanisms regulating their expression is difficult. Hence, we examined a method for stable quantification of such GC-rich DNA sequences. Quantification of DNA during real-time PCR is often based on reagent kits containing the fluorescent dye SYBR Green. However, these ready-made kits may not be suitable for amplifying DNA samples with a high GC content (>70%). DNA segments with eccentric GC contents are frequently found in proximal promoter areas, and their quantification may be necessary in chromatin accessibility by real-time polymerase chain reaction or chromatin immunoprecipitation analyses of epigenetic mechanisms of gene regulation. We therefore optimized the SYBR Green I FastStart reaction system by supplementing the system with dimethyl sulfoxide, betaine, and increased DNA polymerase content. Here, we describe the development of the assay and demonstrate its effectiveness for two different DNA templates, showing that these modifications allow for the reliable amplification and quantification of DNA with GC contents exceeding >70% using the LightCycler instrument.
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Affiliation(s)
- G J Chang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - H M Seyfert
- Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - X Z Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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15
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Xie ZL, Ye PS, Zhang SK, Zhang YS, Shen XZ. Endogenous LPS alters liver GH/IGF system gene expression and plasma lipoprotein lipase in goats. Physiol Res 2015; 64:721-9. [PMID: 25804093 DOI: 10.33549/physiolres.932854] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Endotoxin lipopolysaccharide (LPS) affects the ruminant health and animal performance. The main purposes of this study were to investigate the potential effects of GH/IGF system and lipoprotein lipase (LPL) concentration on resistance the circulating LPS concentration increased in liver with high concentrate diet treatment. Non-lactating goats were randomly allocated to two groups: a high-concentrate diet (HCD) or a low-concentrate diet (LCD) in cross over design and the blood collection at different time points after feeding at the end of the experiment. The average rumen pH was significantly reduced (P<0.05), but the duration with pH was not more than 120 min in the HCD group. The plasma LPL concentration was significantly raised (P<0.05). However, from 2 h onwards, LPS concentration was significantly reduced (P<0.01) in the HCD group compared with LCD group. In addition, the plasma IGF1 concentration and the hepatic insulin-like growth factor-1 receptor (IGF1R) mRNA expression were markedly reduced (P<0.05). However, growth hormone (GH) secretion at 15, 30, and 45 min after feeding and growth hormone receptor (GHR) mRNA expression in the liver was significantly increased (P<0.05) in HCD group. The correlation analysis showed that the plasma LPL concentration was positively correlated with hepatic GHR mRNA expression (P<0.05). Conversely, the plasma LPS concentration was negatively correlated with LPL concentration (P<0.05). These findings reveal that alterations in GH/IGF system function in response to a high-concentrate diet are accompanied by corresponding changes in systemic LPL in non-lactating goats' liver in presence of endogenous LPS stress.
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Affiliation(s)
- Z L Xie
- Key Laboratory of Animal Physiology and Biochemistry, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China.
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16
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Affiliation(s)
- Dan Ying Zhang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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17
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Jiang XY, Ni YD, Zhang SK, Zhang YS, Shen XZ. Identification of Differentially Expressed Proteins in Liver in Response to Subacute Ruminal Acidosis (SARA) Induced by High-concentrate Diet. Asian-Australas J Anim Sci 2014; 27:1181-8. [PMID: 25083113 PMCID: PMC4109875 DOI: 10.5713/ajas.2013.13729] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 01/20/2014] [Accepted: 03/04/2014] [Indexed: 11/27/2022]
Abstract
The aim of this study was to evaluate protein expression patterns of liver in response to subacute ruminal acidosis (SARA) induced by high-concentrate diet. Sixteen healthy mid-lactating goats were randomly divided into 2 groups and fed either a high-forage (HF) diet or a high-concentrate (HC) diet. The HC diet was expected to induce SARA. After ensuring the occurrence of SARA, liver samples were collected. Proteome analysis with differential in gel electrophoresis technology revealed that, 15 proteins were significantly modulated in liver in a comparison between HF and HC-fed goats. These proteins were found mainly associated with metabolism and energy transfer after identified by matrix-assisted laser desorption ionization/time of flight. The results indicated that glucose, lipid and protein catabolism could be enhanced when SARA occurred. It prompted that glucose, lipid and amine acid in the liver mainly participated in oxidation and energy supply when SARA occurred, which possibly consumed more precursors involved in milk protein and milk fat synthesis. These results suggest new candidate proteins that may contribute to a better understanding of the mechanisms that mediate liver adaptation to SARA.
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18
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Affiliation(s)
- Dan Ying Zhang
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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19
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Abstract
OBJECTIVE To determine the function of Smad ubiquitin regulatory factor 2 (Smurf2) on the development of liver fibrosis and cirrhosis. METHODS In vivo Smurf2 expression in fibrotic and cirrhotic rat and human liver tissues were measured using reverse transcription-polymerase chain reaction, Western blot (WB) and immunohistochemistry. In vitro Smurf2 levels were determined in LX-2 cell line with or without transforming growth factor (TGF)-β1 treatment; I, III, IV collagen and laminin levels were determined by ELISA. The recombinant plasmid pcDNA3.1-Smurf2 was transfected into LX-2 cells, and WB and ELISA were utilized to analyze the expression of TGF-β receptor type I (TβRI), Smad7, collagens and laminin with or without proteasome inhibitor MG-132. Coimmunoprecipitation was utilized to characterize the interactions among these factors and the ubiquitination levels. pcDNA3.1-Smad7 vector was transfected and subsequent examinations were conducted just as Smurf2. RESULTS Smurf2 levels were elevated in the early period of fibrotic rat liver and TGF-β1-treated LX-2 cells but were reduced in the cirrhotic livers. Smurf2 overexpression in LX-2 cells reduced TβRI and Smad7 levels, which was accompanied by decreased collagen and laminin levels. Coimmunoprecipitation demonstrated that Smurf2 interacted with TβRI and Smad7, which increased TβRI and Smad7 ubiquitin levels. Smad7 overexpression reduced the TβRI level and was accompanied by decreased collagen and laminin levels. MG-132 could antagonize these effects. CONCLUSION Smurf2 interacts with Smad7 to suppress TGF-β-mediated liver fibrosis through the ubiquitin-dependent degradation of TβRI during the early period of liver fibrosis.
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Affiliation(s)
- Yu Cai
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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20
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Abstract
OBJECTIVE The aim of this study was to summarize the clinical features of autoimmune pancreatitis (AIP) and review the advances in the differential diagnosis with pancreatic carcinoma, thus help to make a correct diagnosis and avoid unnecessary surgery in clinical practice. METHODS Five patients diagnosed as AIP in accordance with the HISORt criteria in Zhongshan Hospital, Fudan University from 2008 to 2010 were enrolled in the study. Clinical features were analyzed and related literature was reviewed. RESULTS Progressive jaundice and abdominal pain were the most frequent symptoms, as well as weight loss, together with serological changes such as elevation of alkaline phosphatase, γ-glutamyl-transpeptidase and serum bilirubin. Two of them showed high serum immunoglobulin G4 (IgG4) levels. Both focal and diffuse changes were found on computed tomography and magnetic resonance imaging. Two of our patients underwent operation because of a high suspicion of malignant tumor, and steroid therapy was administered to the other three patients diagnosed as AIP. No relapse was observed during the follow-up duration of all the patients. CONCLUSIONS Although some recent advances have been made to help the diagnosis of AIP, the differentiation between AIP and pancreatic carcinoma is still a challenge. Clinicians must remember to exclude AIP before making a diagnosis of pancreatic carcinoma.
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Affiliation(s)
- Pei Li Gong
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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Ji ZF, Zhang DY, Weng SQ, Shen XZ, Liu HY, Dong L. POEMS Syndrome: A Report of 14 Cases and Review of the Literature. ISRN Gastroenterol 2012; 2012:584287. [PMID: 22545219 PMCID: PMC3321530 DOI: 10.5402/2012/584287] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Accepted: 01/30/2012] [Indexed: 11/23/2022]
Abstract
POEMS syndrome is a rare paraneoplastic disorder associated with an underlying plasma cell dyscrasia presenting polyneuropathy, organomegaly, endocrinopathy, monoclonal protein, and skin changes. This study reviewed the clinical characteristics of 14 POEMS patients in Zhongshan hospital. The ratio of male to female was 9 : 5, and the average age was 47.1 years. The clinical manifestations were various, including motorial symptoms (weakness), sensory symptoms (numbness), lymphadenopathy, edema, abdominal distention, and skin hyperpigmentation. Imaging studies and laboratory tests also exhibited hepatomegaly, splenomegaly, thrombocytosis, endocrinopathy, and positive serum immunofixation in most patients. In addition, increased plasma cells in bone marrow and Castleman Disease were found in bone marrow and lymph nodes biopsies. All the eight follow-up patients were treated with alkylator-based combination chemotherapy or corticosteroids and thalidomide, with or without autologous stem cell transplantation. Unfortunately, two patients died three or four years after diagnosis of POEMS syndrome. The others showed response to therapy to some extent, but not completely remission. Currently, treatments for POEMS include radiation to the plasmacytoma, and systemic therapy is indicated. Low-dose alkylators with or without corticosteroids are effective in some patients. However, high-dose chemotherapy with auto-SCT dramatically improved symptoms and outcomes for POEMS patients.
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Affiliation(s)
- Zong Fei Ji
- Department of Gastroenterology, Zhongshan Hospital, Shanghai Medical College, Fudan University, Shanghai 200032, China
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22
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Affiliation(s)
- Zong Fei Ji
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, China
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23
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Shen XZ, Lu Q, Deng L, Yu S, Zhang H, Deng Q, Jiang M, Hu Y, Yao KH, Yang YH. Resistance of Haemophilus influenzae isolates in children under 5 years old with acute respiratory infections in China between 2000 and 2002. J Int Med Res 2007; 35:554-63. [PMID: 17697534 DOI: 10.1177/147323000703500416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This prospective, three-centre study tested for antimicrobial susceptibility in 898 isolates of Haemophilus influenzae between 2000 and 2002 in Chinese children aged under 5 years with acute upper respiratory tract infection. The average incidence of beta-lactamase production was 12.0%. Overall, 88.0% of isolates were susceptible to ampicillin, 100.0% were susceptible to amoxicillin/clavulanic acid, ceftriaxone, cefuroxime and azithromycin, and 99.0% were susceptible to ciprofloxacin. Isolates from Beijing and Shanghai had a lower susceptibility to tetracycline (57.0% and 61.0%, respectively) compared with those from Guangzhou (81.0%), while trimethoprim/sulfamethoxazole susceptibilities in Shanghai (47.0%) and Guangzhou (54.0%) were significantly higher than in Beijing (35.0%). A total of 34.5% of all the isolates were susceptible to all eight of these antimicrobial agents and 12.8% were multi-drug resistant. Ampicillin resistance increased over the duration of the study. These findings show that beta-lactamase production and ampicillin resistance among isolates from Chinese children with upper respiratory tract infection are increasing, and highlight the strong correlation between ampicillin resistance and resistance to cefaclor, chloramphenicol and tetracycline in H. influenzae isolates.
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Affiliation(s)
- X Z Shen
- Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
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24
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Abstract
OBJECTIVE Liver fibrosis is a prelude of liver cirrhosis. Currently the molecular mechanism of liver fibrosis is not clear. The purpose of this study is to screen the abnormally expressed genes of liver fibrosis and to illustrate the changes of Smurf2 expression in the process of liver fibrosis. METHODS A liver fibrosis model was established in rats by injection of tetrachlormethane (CCl(4)). A cDNA microarray analysis was performed on the liver at mid-stage of fibrosis. Thereafter, a semi-quantitative RT-PCR, Western blot analysis and immunohistochemistry test were performed for determining Smurf2, Smad2 and SnoN at week 1, 2, 4 and 8 of establishing the liver fibrosis model. RESULTS Smurf2, FGG, PTAFR, CYP2D6, among others, increased in the fibrosis liver and a semi-quantitative RT-PCR confirmed the reliability of the cDNA microarray analysis. Smurf2 in the liver fibrosis model group was at the same level as that of control group at week 1, but decreased at week 2 and 8 and increased at the week 4. Smad2 increased at week 2 and 8 but increased at week 4. However, Smad2 mRNA increased to the same level at week 4 as that at week 2 and 8. The decrease of Smad2 at week 4 may be due to the enhancement of ubiquitination and proteolytic degradation of Smad2 by the increase of Smurf2. SnoN decreased at week 4 and 8 because of the ubiquitination and degradation caused by Smurf2. The decrease of SnoN may explain the progress of liver fibrosis in spite of the decrease of Smad2 at week 4. CONCLUSION This study screened the abnormally expressed genes of liver fibrosis and illustrated the changes of Smurf2, Smad2 and SnoN during the process of liver fibrosis.
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Affiliation(s)
- Yu Cai
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Guo JS, Chau JFL, Shen XZ, Cho CH, Luk JM, Koo MWL. Over-expression of inducible heat shock protein 70 in the gastric mucosa of partially sleep-deprived rats. Scand J Gastroenterol 2004; 39:510-5. [PMID: 15223672 DOI: 10.1080/00365520410004523] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Previous findings have demonstrated increased expression of inducible heat shock protein 70 (iHSP70) in the gastric mucosa of rats exposed to partial sleep deprived (PSD). The purpose of this study was to investigate the functional role of iHSP70 and its relationship with acid secretion in the stomachs of PSD animals. METHODS A slowly rotating drum was used to induce PSD in male Sprague-Dawley rats with or without omeprazole treatment. Gastric mucosal samples were harvested for iHSP70 mRNA and protein analysis with RT-PCR and Western blotting, respectively. Enzyme immunoassay was used to determine plasma gastrin level and gastric acidity was measured by titration. The modulating effect of PSD on 0.6 M hydrochloric acid (HCl)-induced gastric damage was also evaluated. RESULTS PSD increased plasma gastrin, gastric acidity and expression of iHSP70, while significantly reducing HCl-induced gastric damage. Omeprazole administration decreased gastric acidity and reversed iHSP70 over-expression in PSD rats. CONCLUSIONS PSD increases gastric acidity which enhances expression of mucosal iHSP70. Over-expression of iHSP70 may be a protective homeostatic response of the stomach to stress induced by PSD and acid secretion.
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Affiliation(s)
- J S Guo
- Dept. of Pharmacology, Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong
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26
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Abstract
AIM: To investigate if sleep deprivation is able to increase the expression of inducible heat shock protein 70 in gastric mucosa and its possible role in mucosal defense.
METHODS: Rats for sleep disruption were placed inside a computerized rotating drum, gastric mucosa was taken from rats with 1, 3 and 7 d sleep deprivation. RT-PCR, immunohistochemistry and Western blotting were used to determine the expression of heat shock protein 70. Ethanol (500 mL·L-1, i.g.) was used to induce gastric mucosa damage.
RESULTS: RT-PCR, Western blotting and immunostaining confirmed that the sleep deprivation as a stress resulted in significantly greater expression of inducible heat shock protein 70 in gastric mucosa of rats. After the 500 mL·L-1 ethanol challenge, the ulcer area found in the rats with 7 d sleep deprivation (19.15 ± 4.2) mm2 was significantly lower (P < 0.01) than the corresponding control (53.7 ± 8.1) mm2.
CONCLUSION: Sleep deprivation as a stress, in addition to lowering the gastric mucosal barrier, is able to stimulate the expression of inducible heat shock protein 70 in gastric mucosa of rats, the heat shock protein 70 may play an important role in gastric mucosal protection.
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Affiliation(s)
- X Z Shen
- Department of Pharmacology, Faculty of Medicine, The University of Hong Kong, 5 Sassoon Road, Hong Kong, China
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27
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Zhang FC, Wang N, Liu DM, Jian Y, Chen YZ, Shen XZ, Cao YQ, Wang B. Development of Female Contraceptive Vaccine Through DNA Inoculation of Human Chorionic Gonadotropin Beta Subunit (hCGß). Methods Mol Med 2000; 29:439-449. [PMID: 21374340 DOI: 10.1385/1-59259-688-6:439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Human chorionic gonadotropin (hCG) has been considered as a primary target molecule for a contraceptive vaccine by the World Health Organization because of its physiological and temporal specificity. hCG is an essential factor for the successful implantation and establishment of early pregnancy. For a decade, the most advanced works in development of a contraceptive vaccine have been concentrated on polypeptide based vaccines targeted directly against hCG. Although many studies have reached the stage of clinical testing using a number of prototype vaccines based on different parts of hCG molecule, their efficacy has been disappointing (1-4).
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Affiliation(s)
- F C Zhang
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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28
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Abstract
Human gastric cancer MKN-45 cells were transfected with pULB 3238, a plasmid carrying MVMp NS-1 gene with its original P4 promoter replaced by the glucocorticoid inducible promoter MMTV-LTR. After the integration and expression of NS-1 gene, some of the transfectants died, while others remained alive, but the growth features of survived cells were changed. For further study on the antineoplastic function of parvoviral NS-1 protein in vivo, transgenic mice carrying NS-1 genes were established by conventional method. Among 4 founders, one of them was found to be able to transmit the transgene to around 50% of their offsprings. RT-PCR was performed to indicate the expression of NS-1 gene in transgenic mice and its mRNA appeared in a variety of tissues. The expression of integrated NS-1 gene may correlate with the decreased incidence of tumor induced in vivo by chemical carcinogens.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Cell Division/drug effects
- Cell Line, Transformed
- Female
- Gene Expression Regulation, Viral/drug effects
- Genes, Viral
- Growth Inhibitors/physiology
- Humans
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Transgenic
- Neoplasms, Experimental/chemically induced
- Neoplasms, Experimental/pathology
- Neoplasms, Experimental/prevention & control
- Transfection
- Tumor Cells, Cultured
- Viral Nonstructural Proteins/biosynthesis
- Viral Nonstructural Proteins/genetics
- Viral Nonstructural Proteins/physiology
- Viral Structural Proteins/genetics
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Affiliation(s)
- X Z Shen
- Shanghai Institute of Digestive Diseases, Ren Ji Hospital, Shanghai Second Medical University, China
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29
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Yang YH, Shen XZ, Totolian A, Beliakova I. Opacity factor inhibition test for typing group A beta-haemolytic streptococcus strains and antibiotic susceptibility. Adv Exp Med Biol 1997; 418:45-7. [PMID: 9331595 DOI: 10.1007/978-1-4899-1825-3_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Y H Yang
- Beijing Children's Hospital, China
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30
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Yuan J, Shen XZ, Zhu XS. [Effect of berberine on transit time of human small intestine]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1994; 14:718-720. [PMID: 7719104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Sorbitol was used as a test sugar for the determination of small intestinal transit time (SITT) by means of breath hydrogen test (BHT). After oral administration of 15g sorbitol, breath hydrogen increased markedly (delta H2 > 5 mumol/L) in 26 of 30 subjects. Following ingestion of a mixture of meglucamine diatrizoate and sorbitol by 18 subjects, SITT measured by BHT correlated closely with the simultaneously determined time for the meglucamine diatrizoate in reaching ileo-cecum. The BHT was used to investigate the effect of berberine on SITT in human. SITT in 20 healthy subjects was 71.10 +/- 22.04 min, SITT was significantly delayed to 98.25 +/- 29.03 min after oral administration of the 1.2g of berberine (P < 0.01). This result suggested that the antidiarrheal property of berberine might be mediated, at least in part, by its ability to delay the small intestinal transit.
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Affiliation(s)
- J Yuan
- Third People's Hospital of Suzhou, Jiangsu
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31
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Yang YH, Jiang ZF, Chen XN, Jiang QB, Zhang GR, Shen XZ, Peng H, Schneerson R, Robbins JB. Countercurrent immunoelectrophoresis for diagnosis of acute bacterial pneumonia in Chinese children. Chin Med J (Engl) 1993; 106:105-9. [PMID: 8504692] [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: 01/31/2023] Open
Abstract
Countercurrent immunoelectrophoresis (CIE) with H. influenzal type b(Hib) and Pneumococci Omni antisera was performed on serum and concentrated urine and pleural fluid samples from 100 patients with acute pneumonia in Beijing Children's Hospital. Thirty-one patients were investigated by bacteriologic techniques (blood culture and pleural fluid culture). CIE was positive in 29/100 (29%) of cases of Hib, 13/100 (13%) of cases for pneumococci. Overall, bacterial causes of pneumonia were diagnosed by CIE in 41/100 (41%) cases. Antigens were detected in 5/90 (5.6%) serum samples, in 36/87 (41.5%) concentrated urine samples, and in 1/2 (50%) samples of pleural fluid. Only one Hib strain was found by pleural fluid culture. The contamination rate of bacterial culture in this group was high (5/31 cases, 16.1%). Therefore, traditional bacteriologic techniques are of very limited value for diagnosing pneumonia in Chinese children. The results showed that bacterial pathogen, especially Hib and Pneumococci, are very common and important causes of pediatric pneumonia in China.
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Affiliation(s)
- Y H Yang
- Laboratory of Microbiology and Immunology, Beijing Children's Hospital
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32
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Cao YQ, Shen XZ, Ye LQ, Chen YZ, Zhang ZY. Identification and characterization of luteinizing hormone-releasing hormone (LH-RH) receptors in the endometrial tissue of pregnant rats. Sci Sin B 1984; 27:687-95. [PMID: 6095443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The mechanisms by which LH-RH or its agonists inhibit decidua formation and terminate pregnancy in rats are not clear. Evidence so far accumulated indicates that the gonadotropic releasing hormone or its analogues may act directly on the uterus. If this is the case, then we would be able to identify LH-RH receptors in the endometrial tissue. The results presented here demonstrate that the homogenate preparation of rat endometrial tissue bound 125I-LH-RH with an affinity constant of Ka = 1.3 X 10(8) M-1. The binding capacity was measured as 236 fmole/mg protein. It was found that the binding is highly specific, because no binding was observed in a variety of non-target tissues, such as liver, kidney and muscle. Competitive binding with TRH, P substance and bradykinin did not occur under our experimental condition. It was of particular interest to note that Day 3 of pregnancy is a critical time showing a higher binding activity. The significance of work is discussed.
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Abstract
Synthesis of uteroglobin in rabbit uterine epithelial cells during early pregnancy is induced by progesterone and apparently suppressed by estrogen. To assess whether the steroid hormones exert regulatory effects on the expression of the uteroglobin gene, we performed transcriptional rate assays in endometrial nuclei prepared from ovariectomized rabbits subjected to different hormonal treatments. The isolated nuclei were incubated with [3H]UTP to assess the synthesis of newly elongated RNA transcripts by the incorporation of [3H]UMP. The percentage of labeled RNA represented by uteroglobin sequences was determined by hybridization with cloned uteroglobin DNA immobilized on nitrocellulose filters. Progesterone alone (3 mg/kg X day) for 5 days increased endometrial DNA content 16-fold, total cellular transcriptional activity 4-fold, and relative uteroglobin gene transcription about 6-fold. 17 beta-Estradiol alone (50 micrograms/kg X day) for 5 days had no significant effect on any of these three variables. Not until after 2 days of treatment did progesterone increase the relative rate of uteroglobin gene transcription, whereas total transcriptional activity per mg DNA increased rapidly on the first day of progesterone administration. Treatment of progesterone-stimulated rabbits with estradiol for 5 days reduced tissue DNA content by 80%, and a single injection of estradiol caused a small decrease in uteroglobin gene transcription. Chronic treatment with progesterone alone was sufficient to reduce uteroglobin gene transcription to control levels, without a decrease in tissue DNA content. Progesterone thus regulates uteroglobin synthesis in the uterus at least at three levels: 1) by exerting a mitogenic effect on endometrial cells, 2) by enhancing total cellular transcriptional activity, and 3) by preferential stimulation of uteroglobin gene transcription. Physiologically, the decline in uteroglobin synthesis after 5 days of pregnancy appears to be the result of a decrease in uteroglobin gene transcription in the face of the continued rise in blood progesterone, and this effect may be aided by antiprogestational actions of estradiol.
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