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Zhang LZ, Shan CT, Zhang SZ, Pei HY, Wang XW. [Disseminated nocardiosis caused by Nocardia otitidiscaviarum in an immunocompetent host: a case report]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:1127-1130. [PMID: 37914426 DOI: 10.3760/cma.j.cn112147-20230516-00243] [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: 11/03/2023]
Abstract
Nocardiosis can be caused by various Nocardia spp., including Nocardia asteroides, Nocardia brasiliensis, Nocardia cyriacigeorgica, Nocardia farcinica and Nocardia otitidiscaviarum. As compared with the other Nocardia spp., Nocardia otitidiscaviarum appears to be rare which can spread through the bloodstream and affect multiple organs. The disease is usually seen in immunocompromised patients' but may also occur in immunocompetent patients. The clinical symptoms and laboratory and imaging examinations of the disease are nonspecific.Here, we reported a case of disseminated nocardiosis caused by infection with Nocardiosis otitidiscaviarum in an immunocompetent host to improve the knowledge and diagnosis of nocardiosis.
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Affiliation(s)
- L Z Zhang
- Clinical College of Jining Medical University, Jining 272067, China
| | - C T Shan
- Department of Pulmonary and Critical Care Medicine, Affiliated Hospital of Jining Medical University, Jining 272029, China
| | - S Z Zhang
- Clinical College of Jining Medical University, Jining 272067, China
| | - H Y Pei
- Clinical College of Jining Medical University, Jining 272067, China
| | - X W Wang
- Department of Infectious Diseases, Affiliated Hospital of Jining Medical University, Jining 272029, China
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2
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Yoshino T, Cervantes A, Bando H, Martinelli E, Oki E, Xu RH, Mulansari NA, Govind Babu K, Lee MA, Tan CK, Cornelio G, Chong DQ, Chen LT, Tanasanvimon S, Prasongsook N, Yeh KH, Chua C, Sacdalan MD, Sow Jenson WJ, Kim ST, Chacko RT, Syaiful RA, Zhang SZ, Curigliano G, Mishima S, Nakamura Y, Ebi H, Sunakawa Y, Takahashi M, Baba E, Peters S, Ishioka C, Pentheroudakis G. Pan-Asian adapted ESMO Clinical Practice Guidelines for the diagnosis, treatment and follow-up of patients with metastatic colorectal cancer. ESMO Open 2023; 8:101558. [PMID: 37236086 PMCID: PMC10220270 DOI: 10.1016/j.esmoop.2023.101558] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/28/2023] Open
Abstract
The European Society for Medical Oncology (ESMO) Clinical Practice Guidelines for the diagnosis, treatment and follow-up of patients with metastatic colorectal cancer (mCRC), published in late 2022, were adapted in December 2022, according to previously established standard methodology, to produce the Pan-Asian adapted (PAGA) ESMO consensus guidelines for the management of Asian patients with mCRC. The adapted guidelines presented in this manuscript represent the consensus opinions reached by a panel of Asian experts in the treatment of patients with mCRC representing the oncological societies of China (CSCO), Indonesia (ISHMO), India (ISMPO), Japan (JSMO), Korea (KSMO), Malaysia (MOS), the Philippines (PSMO), Singapore (SSO), Taiwan (TOS) and Thailand (TSCO), co-ordinated by ESMO and the Japanese Society of Medical Oncology (JSMO). The voting was based on scientific evidence and was independent of the current treatment practices, drug access restrictions and reimbursement decisions in the different Asian countries. The latter are discussed separately in the manuscript. The aim is to provide guidance for the optimisation and harmonisation of the management of patients with mCRC across the different countries of Asia, drawing on the evidence provided by both Western and Asian trials, whilst respecting the differences in screening practices, molecular profiling and age and stage at presentation, coupled with a disparity in the drug approvals and reimbursement strategies, between the different countries.
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Affiliation(s)
- T Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
| | - A Cervantes
- Department of Medical Oncology, INCLIVA Biomedical Research Institute, University of Valencia, Valencia; CIBERONC, Instituto de Salud Carlos III, Madrid, Spain
| | - H Bando
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - E Martinelli
- Oncology Unit, Department of Precision Medicine, Università degli Studi della Campania 'L. Vanvitelli', Naples, Italy
| | - E Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - R-H Xu
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center and State Key Laboratory of Oncology in South China, Guangzhou, China
| | - N A Mulansari
- Hematology-Medical Oncology Division, Department of Internal Medicine, Cipto Mangunkusumo National General Hospital/Universitas Indonesia, Jakarta, Indonesia
| | - K Govind Babu
- Department of Medical Oncology, HCG Hospital and St. John's Medical College, Bengaluru, India
| | - M A Lee
- Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - C K Tan
- Department of Oncology and Nuclear Medicine, Thomson Hospital Kota Damansara, Selangor, Malaysia
| | - G Cornelio
- Department of Medical Oncology, University of the Philipppines-Philippine General Hospital, St. Lukes Cancer Institute-Global City, The Philippines
| | - D Q Chong
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - L-T Chen
- Department of Internal Medicine, Kaohsiung Medical University Hospital and Centre for Cancer Research, Kaohsiung Medical University, Kaohsiung; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - S Tanasanvimon
- Department of Internal Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok
| | - N Prasongsook
- Division of Medical Oncology, Department of Medicine, Phramongkutklao Hospital, Bangkok, Thailand
| | - K-H Yeh
- Department of Oncology, National Taiwan University Hospital, Taipei; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - C Chua
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore
| | - M D Sacdalan
- Department of Surgery, University of the Philippines-College of Medicine and University of the Philippines-Philippine General Hospital, Manila, The Philippines
| | - W J Sow Jenson
- Department of Radiotherapy & Oncology, Aurelius Hospital, Nilai, Malaysia
| | - S T Kim
- Division of Hematology-Oncology, Department of Medicine, Sungkyunkwan University School of Medicine, Samsung Medical Centre, Seoul, South Korea
| | - R T Chacko
- Department of Medical Oncology, Christian Medical College, Vellore, Tamil Nadu, India
| | - R A Syaiful
- Department of Surgery, Dr Cipto Mangunkusumo National General Hospital, University of Indonesia, Jakarta, Indonesia
| | - S Z Zhang
- Department of Colorectal Surgery, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - G Curigliano
- Istituto Europeo di Oncologia, IRCCS, Milan; Department of Oncology and Haematology, University of Milano, Milan, Italy
| | - S Mishima
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Y Nakamura
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - H Ebi
- Division of Molecular Therapeutics, Aichi Cancer Center Research Institute, Nagoya
| | - Y Sunakawa
- Department of Clinical Oncology, St. Marianna University School of Medicine, Kawasaki
| | - M Takahashi
- Department of Clinical Oncology, Tohoku University Graduate School of Medicine, Sendai
| | - E Baba
- Department of Oncology and Social Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - S Peters
- Oncology Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - C Ishioka
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Japan
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Zhu N, Huang YQ, Song YM, Zhang SZ, Zheng S, Yuan Y. [Efficacy comparison among high risk factors questionnaire and Asia-Pacific colorectal screening score and their combinations with fecal immunochemical test in screening advanced colorectal tumor]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:612-620. [PMID: 35844124 DOI: 10.3760/cma.j.cn441530-20211127-00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the effects of high risk factors questionnaire (HRFQ), Asia-Pacific colorectal screening (APCS) score and their combinations with fecal immunochemical test (FIT) in screening advanced colorectal neoplasia, in order to provide an evidence for further optimization of cancer screening program. Methods: A retrospective cohort study method was used to summarize and analyze the results of colorectal tumor screening in Jiashan County, Zhejiang Province from March 2017 to July 2018. Those with severe diseases that were not suitable for colonoscopy and those with mental and behavioral abnormalities who can not cooperate with the screening were excluded. Those who met any one or more of the followings in the HRFQ questionnaire were classified as high-risk people of HRFQ: (1) first-degree relatives with a history of colorectal cancer; (2) subjects with a history of cancer or any other malignant tumor; (3) subjects with a history of intestinal polyps; (4) those with two or more of the followings: chronic constipation (constipation lasted for more than 2 months per year in the past two years), chronic diarrhea (diarrhea lasted for more than 3 months in the past two years, and the duration of each episode was more than one week), mucus and bloody stools, history of adverse life events (occurring within the past 20 years and causing greater trauma or distress to the subject after the event), history of chronic appendicitis or appendectomy, history of chronic biliary disease or cholecystectomy. In this study, those who were assessed as high risk by HRFQ were recorded as "HRFQ (+)", and those who were not at high risk were recorded as "HRFQ (-)". The APCS questionnaire provided risk scores based on 4 risk factors including age, gender, family history and smoking: (1) age: 2 points for 50-69 years old, 3 points for 70 years old and above; (2) gender: 1 point for male, 0 point for women; (3) family history: 2 points for first-degree relatives suffering from colorectal cancer; (4) smoking: 1 point for current or past smoking, 0 point for non-smokers. The population was divided into low-risk (0-1 point), intermediate-risk (2-3 points), and high-risk (4-7 points). Those who were assessed as high risk by APCS were recorded as "APCS (+)", and those with intermediate and low risk were recorded as "APCS (-)". The hemoglobin threshold for a positive FIT was set to 100 μg/L. Those who were assessed as high risk by APCS with positive FIT were recorded as "APCS+FIT (+)". Those who were assessed as high risk by APCS with negative FIT, those who were assessed by APCS as low-middle risk with positive FIT, and those who were assessed by APCS as low-middle with negative FIT were all recorded as "APCS+FIT(-)". Observation indicators in this study were as follows: (1) the screening compliance rate of the cohort and the detection of advanced colorectal tumors; (2) positive predictive value, negative predictive value, sensitivity and specificity of HRFQ and APCS and their combination with FIT for screening advanced colorectal tumors; (3) comparison of the detection rate between HRFQ and APCS questionnaire for different colorectal lesions. Using SPSS 21.0 software, the receiver operating characteristic (ROC) curve was drawn to evaluate the clinical value of HRFQ and APCS combined with FIT in screening advanced colorectal tumors. Results: From 2017 to 2018 in Jiashan County, a total of 53 268 target subjects were screened, and 42 093 people actually completed the questionnaire, with a compliance rate of 79.02%. A total of 8145 cases underwent colonoscopy. A total of 3607 cases among HRFQ positive population (5320 cases) underwent colonoscopy, and the colonoscopy compliance rate was 67. 80%; 8 cases were diagnosed with colorectal cancer and 88 cases were advanced colorectal adenoma. A total of 2977 cases among APCS positive population (11 942 cases) underwent colonoscopy, and the colonoscopy compliance rate was 24.93%; 17 cases were diagnosed with colorectal cancer and 148 cases were advanced colorectal adenoma. The positive rate of HRFQ screening was lower than that of APCS [12.6% (5320/42 093) vs. 28.4% (11 942/42 093), χ2=3195. 547, P<0.001]. In the FIT positive population (6223 cases), a total of 4894 cases underwent colonoscopy, and the colonoscopy compliance rate was 78.64%; 34 cases were diagnosed with colorectal cancer and 224 cases were advanced adenoma. The positive predictive values of HRFQ and APCS and their combination with FIT for screening advanced colorectal tumors were 2.67%, 5.54%, 5.44%, and 8.56%; negative predictive values were 94.89%, 96.85%, 96.11% and 96.99%; sensitivity was 29.27%, 50.30%, 12.20 % and 39.02%; specificity was 55.09%, 64.03%, 91.11% and 82.51%, respectively. The ROC curves constructed by HRFQ, APCS, FIT, HRFQ+FIT and APCS+FIT indicated that APCS+FIT presented the highest efficacy in screening advanced colorectal tumors (AUC: 0.608, 95%CI: 0.574-0.642). The comparison of the detection rates of different colorectal lesions between HRFQ and APCS questionnaires showed that there were no significant differences in detection rate of inflammatory polyps and hyperplastic polyps between the two questionnaires (both P>0.05). However, as compared to HRFQ questionnaire, APCS questionnaire had higher detection rates in non-advanced adenomas [26.10% (777/2977) vs. 19.43% (701/3607), χ2=51.228, P<0.001], advanced adenoma [4.97% (148/2977) vs. 2.44% (88/3607), χ2=30.249, P<0.001] and colorectal cancer [0.57% (17 /2977) vs. 0.22% (8/3607), χ2=5.259, P=0.022]. Conclusions: APCS has a higher detection rate of advanced colorectal tumors than HRFQ. APCS combined with FIT can further improve the effectiveness of advanced colorectal tumor screening.
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Affiliation(s)
- N Zhu
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China Department of Medical Oncology, Key Labaratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Q Huang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y M Song
- Department of Colorectal Surgery and oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S Z Zhang
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S Zheng
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Yuan
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China Department of Medical Oncology, Key Labaratory of Cancer Prevention and Intervention, Ministry of Education, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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4
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Wu ZM, Ren LL, Zhang SZ. [Vestibular rehabilitation: its principle, steps and monitoring]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:363-366. [PMID: 35325953 DOI: 10.3760/cma.j.cn115330-20210531-00316] [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: 06/14/2023]
Affiliation(s)
- Z M Wu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Medical Center of Chinese People's Liberation Army General Hospital, College of Otorhinolaryngology Head and Neck Surgery,Chinese People's Liberation Army General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China
| | - L L Ren
- Department of Otorhinolaryngology Head and Neck Surgery, the First Medical Center of Chinese People's Liberation Army General Hospital, College of Otorhinolaryngology Head and Neck Surgery,Chinese People's Liberation Army General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China
| | - S Z Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Medical Center of Chinese People's Liberation Army General Hospital, College of Otorhinolaryngology Head and Neck Surgery,Chinese People's Liberation Army General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China
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Zhuang ZXD, Lin YF, Zhong XB, Zhang SZ, Liao XX. Identification of potential therapeutic targets for coronary artery disease based on protein array and Mendelian Randomization analysis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1396] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Currently, coronary artery disease (CAD) is a main cause of mortality worldwide. Exposing the unknown pathogenic mechanism and exploring potential therapeutic targets of CAD is a critical issue in current CAD research. We aimed to identify potential therapeutic target for CAD using 2-sample Mendelian randomization (MR) approach among differential expression proteins between CAD and control group.
Methods
Serum samples from 16 first-onset CAD patients diagnosed by coronary angiography and 10 non-CAD controls were collected and detected using protein array. We identified differentially expressed proteins based on “DEseq2” R package and found the core module using MCODE plugin in Cytoscape. Proteins in core modules were used as candidate protein for causal inference. Genetic instrument variables (IV) of candidate proteins were extracted from Age, Gene/Environment Susceptibility-Reykjavik Study (AGES-RS). Two-sample MR was performed to detect the causal association between the candidate proteins and CAD. For the identified protein causally associated with CAD, sensitivity analyses were used to confirm the finding, including using other MR approach, using more stringent instrument variables, and external cohorts for verification. Network MR was performed to explore whether metabolic risk factors for CAD mediated the risk of identified proteins, including indices of lipid metabolism, glucose metabolism, obesity and blood pressure. Mediation analysis was used to measure the effect of mediation.
Results
A total of 81 differentially expressed protein were found in CAD group compare to control group, among which 3 core functional modules were found. In five candidate proteins with available instrumental variables, only GP73 was causally associated with CAD risk. Per 1 SD increment in genetically determined GP73 level was associated with 12% increased CAD risk (odds ratio: 1.12; 95% confidence interval: 1.06–1.18, FDR<0.001). Sensitivity analysis yielded consistent results. Network MR analysis shows that across metabolic risk factors profiles for CAD, GP73 level was causally associated with low-density lipoprotein cholesterol (LDL-c), glycated hemoglobin (HbA1c) and waist-to-hip ratio (WHR). Besides, LDL-c, HbA1c and WHR serves as mediators in the causal pathway from GP73 to CAD and transmitted 40.4%, 1.4%, and 5.5% of the total effects, respectively.
Conclusion
Based on protein array and bioinformatics analysis, this study screened out 3 modules that play core functions in the differential expressed proteins. Among the 19 proteins in the core module, there was a causal relationship between circulating GP73 levels and incident CAD, and the causal effect is mainly mediated by lipid metabolism. The results suggest that GP73 can not only be used as a novel biomarker of CAD, but also may provide a new potential therapeutic target for the management of CAD.
Funding Acknowledgement
Type of funding sources: None. Figure 1
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Affiliation(s)
- Z X D Zhuang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Y F Lin
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X B Zhong
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Z Zhang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X X Liao
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhuang ZXD, Zhang SZ, Liao XX. Association between malnutrition status and incident heart failure in community population. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1018] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Malnutrition is commonly prevalent in patients with heart failure (HF) and associated with poor prognosis. However, few studies have explored the association between malnutrition status and incident HF in community population.
Method
379,759 participants (46.3% women) without HF at baseline from the UK Biobank were included. Nutritional status was evaluated using the Controlling Nutritional Status (CONUT) score, with higher scores reflecting worse nutritional status. Association between CONUT score and incident HF were investigated using Cox proportional hazard regression models, with adjustment for traditional risk factors.
Results
During a median follow-up of 8.1 years, 5,520 cases (1.5%) of HF occurred. The hazard ratio for incident HF with 1-point increase of CONUT scores was 1.16 (95% CI, 1.12–1.20, P<0.001), after adjustment for traditional HF risk factors. Compared with good nutritional status, malnutrition was associated with significantly increased risk for incident HF [adjust hazard ratio were 1.25 (95% CI 1.17–1.34, P<0.001) for mild malnutrition and 2.06 (95% CI 1.36–3.12, P=0.001) for moderate or severe malnutrition]. Conclusion Malnutrition status were associated with increased risk of incident HF. Further studies are needed to confirm these findings and evaluate the use of CONUT in community monitoring.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Z X D Zhuang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Z Zhang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X X Liao
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhuang ZXD, Liao XX, Zhang SZ. Association of residential distance to coast with myocardial infarction: a prospective cohort study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2401] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Little is known about whether the residential distance to coast is associated with incident myocardial infarction (MI), as well as which mechanisms may explain the association. We aim to explore this association using data from a prospective, population-based cohort with unprecedented sample size and broad geographical coverage.
Methods
377,340 participants from the prospective, population-based UK Biobank cohort were included. Residential distance to the coast was defined as participant's residence location to coast.
Results
4,059 MI occurred during median 8.0 years follow-up. Using group (<1 km) as reference, group (20–50 km) was associated with lower risk of MI (hazard ratio, HR 0.79, 95% CI 0.64–0.98) and a U-shaped relation between distance to coast and MI was shown with the low risk interval between 32 km and 64 km (Pnonlinear = 0.0012). Using participants of intermediate region (32–64 km) as reference, participants of offshore region (<32 km) and inland region (>64 km) were both associated with a higher risk of incident MI (HR 1.12, 95% CI 1.04–1.21 and HR 1.09, 95% CI 1.01–1.18, respectively). HR for offshore region (<32 km) was larger in subgroup with low total physical activity (<24 hours/week) (HR 1.24, 95% CI 1.09–1.42, Pinteraction = 0.043), whereas HR for inland region (>64 km) was larger in subgroup in urban area (HR 1.12, 95% CI 1.03–1.22, Pinteraction = 0.065) and in subgroup of high nitrogen dioxide air pollution (HR 1.29, 95% CI 1.11–1.50, Pinteraction = 0.021).
Conclusions
Our findings highlight the complex and diverse associations between residential distance to the coast and incident MI.
Funding Acknowledgement
Type of funding sources: None. Figure 1
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Affiliation(s)
- Z X D Zhuang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X X Liao
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Z Zhang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Zhuang XD, Liu MH, Zhang SZ, Christopher O, Liao XX. Intervention-specific association of weight variability with major adverse cardiovascular events in overweight or obese adults with type 2 diabetes mellitus. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2613] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Weight variability is associated with cardiovascular outcomes in diabetic patients. However, the effect of higher weight variability caused by intensive lifestyle intervention (ILI) on cardiovascular outcomes in diabetic patients is not well established. We aimed to evaluate the intervention-specific association between weight variability with major adverse cardiovascular event (MACE) among overweight or obese adults with diabetes.
Methods
In 3,859 participants from the Action for Health in Diabetes (Look AHEAD) trial, multivariate-adjusted Cox regression models were used to evaluate the associations of weight variability measured by variability independent of the mean (VIM) with MACE and secondary outcomes in intensive lifestyle intervention (ILI) and diabetes support & education (DSE) arm, respectively.
Results
During a median follow-up of 9.6 years, 255 (12.9%) participants in the ILI arm and 247 (13.2%) participants in the DSE arm developed MACE. Participants with the highest quartile of weight variability (VIM Q4) experienced a 2.23-fold higher risk of MACE compared with the lowest quartile (VIM Q1) in the DSE arm (hazard ratio [HR] 2.23; 95% CI 1.51–3.30), but not the ILI arm (HR 1.05; 95% CI 0.73–1.50). Moreover, compared with the lowest weight variability (VIM Q1), participants with the highest weight variability (VIM Q4) were not associated with all secondary outcomes in the ILI arm (all P>0.05) but were associated with the higher risks of secondary cardiovascular composite outcome (HR 1.88; 95% CI 1.20–2.95), all-cause mortality (HR 3.19; 95% CI 1.75–5.82), and myocardial infarction (HR 1.95; 95% CI 1.12–3.37) in the DSE arm.
Conclusions
Among the overweight or obese individuals with type 2 diabetes mellitus, rising weight variability was independently associated with increased MACE risks in the DSE arm but not the ILI arm. Therefore, a guideline-recommended ILI strategy for weight loss should be adopted to improve cardiovascular outcomes without considering the effect of high weight variability.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- X D Zhuang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - M H Liu
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Z Zhang
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - O Christopher
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X X Liao
- First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Ma P, Gao S, Zhang HY, Li BY, Zhong HX, Wang YK, Hu HM, Zhang HK, Luo BW, Zhang X, Liu D, Wu L, Gao DJ, Gao SQ, Zhang SZ, Gao SB. Identification and characterization of circRNAs in maize seedlings under deficient nitrogen. Plant Biol (Stuttg) 2021; 23:850-860. [PMID: 33932084 DOI: 10.1111/plb.13280] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
Here, deep sequencing results of the maize transcriptome in leaves and roots were compared under high-nitrogen (HN) and low-nitrogen (LN) conditions to identify differentially expressed circRNAs (DECs). Circular RNAs (circRNAs) are covalently closed non-coding RNA with widely regulatory potency that has been identified in animals and plants. However, the understanding of circRNAs involved in responsive nitrogen deficiency remains to be elucidated. A total of 24 and 22 DECs were obtained from the leaves and roots, respectively. Ten circRNAs were validated by divergent and convergent primers, and 6 DECs showed the same expression tendency validated by reverse transcriptase-quantitative PCR. Integrating the identified differentially expressed miRNAs, 34 circRNAs could act as miRNA decoys, which might play important roles in multiple biological processes, including organonitrogen compound biosynthesis and regulation of the metabolic process. A total of 51 circRNA-parent genes located in the genome-wide association study identified loci were assessed between HN and LN conditions and were associated with root growth and development. In summary, our results provide valuable information regarding further study of maize circRNAs under nitrogen deficiency and provide new insights into screening of candidate genes as well as the improvement of maize regarding nitrogen deficiency resistance. CircRNA-miRNA-mRNA co-expression networks were constructed to explore the circRNAs that participated in biological development and nitrogen metabolism.
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Affiliation(s)
- P Ma
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - S Gao
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - H Y Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - B Y Li
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - H X Zhong
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - Y K Wang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - H M Hu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - H K Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - B W Luo
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - X Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - D Liu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - L Wu
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - D J Gao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - S Q Gao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - S Z Zhang
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
| | - S B Gao
- Maize Research Institute, Sichuan Agricultural University, Chengdu, China
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Chengdu, China
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10
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Huang ZR, Sheng MT, Pan LM, Zhang SZ, Zhu ZL, Wang H, Xu CL, Teng L, He L, Gu C, Yi C, Li JM. [Effects of protein disulfide isomerase on hyperglycemia and hypoxia/reoxygenation injury in H9c2 cardiomyocytes]. Zhonghua Yi Xue Za Zhi 2021; 101:1523-1528. [PMID: 34044521 DOI: 10.3760/cma.j.cn112137-20200926-02724] [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 explore the effect of protein disulfide isomerase (PDI) in diabetic ischemic heart disease. Methods: We established an in vitro model of high glucose and hypoxia/reoxygenation in H9c2 rat myocardial cells. Cultured cells were divided into four groups: Control, high glucose (HG), hypoxia/reoxygenation (H/R) and HG+H/R. Changes in PDI expression mediated by PDI adenovirus(Ad-PDI) infection and siRNA(PDI-siRNA) transfection in myocardial cells were observed by inverted fluorescence microscopy. We also measured lactate dehydrogenase(LDH) activity and malondialdehyde(MDA) and high molecular weight(HMW)-APN concentrations. PDI, APN, cleaved caspase-3, and glucose regulated protein 78 (Grp78) protein expression were detected. Results: PDI expression was significantly decreased in the HG, H/R and HG+H/R groups compared to the Control group; however, LDH activity[(179.7±10.4) U/L、(218.4±18.4) U/L、(328.2±5.3) U/L vs (91.0±11.0) U/L], MDA concentration[(7.0±0.4) μmol/L、(10.0±1.0) μmol/L、(11.7±1.0) μmol/L vs (4.2±1.8) μmol/L], cleaved caspase-3, and Grp78 expression were increased. Interestingly, APN and HMW-APN expression were decreased [(2.01±0.21) μg/L、(1.64±0.27) μg/L、(1.20±0.14) μg/L vs (2.62±0.12) μg/L, all P<0.05]. Over expression of PDI attenuated high glucose and hypoxia/reoxygenation induced apoptosis and oxidative stress in H9c2 cardiomyocytes(all P<0.05), and simultaneously increased APN and HMW-APN expression [(2.86±0.03) μg/L vs (3.03±0.10) μg/L、(2.06±0.05) μg/L vs (2.31±0.06) μg/L、(1.83±0.07) μg/L vs (1.96±0.11) μg/L、(1.20±0.06) μg/L vs (1.39±0.09) μg/L]. PDI-siRNA transfection increased LDH activity, MDA concentration, and cleaved caspase-3 and Grp78 expression, and decreased APN and HMW-APN expression [(0.75±0.09) μg/L vs (0.59±0.09) μg/L、(0.62±0.04) μg/L vs (0.53±0.05) μg/L、(0.55±0.14) μg/L vs (0.51±0.12) μg/L、(0.48±0.12) μg/L vs (0.35±0.08) μg/L] in response to different treatments in cultured H9c2 cardiomyocytes (all P<0.05). Conclusion: PDI may regulate the expression of APN and HMW-APN, and play an important role in the function of diabetic ischemia-reperfusion cardiomyocytes.
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Affiliation(s)
- Z R Huang
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - M T Sheng
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L M Pan
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - S Z Zhang
- China Three Gorges University, Yichang 443000, China
| | - Z L Zhu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - H Wang
- China Three Gorges University, Yichang 443000, China
| | - C L Xu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - L Teng
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - L He
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Gu
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
| | - C Yi
- the First College of Clinical Medical Sciences of Three Gorges University/Central People's Hospital of Yichang, Yichang 443000, China
| | - J M Li
- The People's Hospital of Three Gorges University/the First People's Hospital of Yichang, Yichang 443000, China
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Abstract
The European cohort study has indicated about CD74 IgG-autoantibodies as potential marker for axial spondyloarthritis (axSpA) diagnosis. However, multiple studies have questioned the diagnostic value of various disease-specific autoantibodies in different ethnic groups. Here, we have tried to assess the diagnostic value of anti-CD74 IgG and IgA autoantibodies in axSpA patients from Chinese Han population.The anti-CD74 IgG and IgA autoantibodies were analyzed using ELISA assay in a cohort of 97 axSpA patients, including 47 treatment-naïve axSpA patients never treated with steroids or immunosuppressants and 50 treated axSpA patients. The rheumatic disease control (RDC) group consisted of 40 rheumatoid arthritis, 25 systemic lupus erythematosus, 18 psoriatic arthritis patients, and 60 healthy controls (HC).Our data demonstrated the presence of anti-CD74 IgA auto-antibodies in 25.8% of the axSpA patients, 30.1% of the RDC group patients and none in HC. Similarly, anti-CD74 IgG autoantibodies were observed in 23.7% of the axSpA patients, 18.1% of the RDC patients and 18.3% of the HC. The sensitivity, specificity, and accuracy of IgA autoantibodies were 21.3%, 82.5%, & 67.4%, respectively, while for IgG, it was 27.7%, 81.8%, and 68.4%, in treatment-naïve axSpA patients. Furthermore, weak positive relationship between anti-CD74 IgA autoantibodies and bath ankylosing spondylitis disease activity index ( r = 0.253, P = .012) and functional index (bath ankylosing spondylitis functional index; r = 0.257, P = .011) was observed.Overall, our study demonstrated little clinical and predictive value of CD74 autoantibodies in the diagnosis of axSpA and its related manifestations, among Chinese Han population.
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Affiliation(s)
- Chao-Jun Hu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Meng-Tao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xi Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Lin-Yi Peng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Shang-Zhu Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xiao-Mei Leng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Jin-Mei Su
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
| | - Xiao-Feng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Sciences; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID); Key Laboratory of Rheumatology & Clinical Immunology, Ministry of Education, Beijing
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12
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Peng Y, Li JQ, Zhang PP, Zhang X, Peng LY, Chen H, Zhou JX, Zhang SZ, Yang HX, Liu JJ, Guo HF, Li J, Zhang X, Zhao Y, Zeng XF, Zhang FC, Fei YY, Zhang W. Clinical outcomes and predictive relapse factors of IgG4-related disease following treatment: a long-term cohort study. J Intern Med 2019; 286:542-552. [PMID: 31121062 DOI: 10.1111/joim.12942] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the predictive factors for relapse of IgG4-related disease (IgG4-RD) and observe the long-term clinical outcomes in patients with IgG4-RD. METHODS We included in the present analysis 122 patients who were newly diagnosed with IgG4-RD, treated with glucocorticoid (GC) monotherapy or GC and immunosuppressant combination therapy, and followed for at least 3 years. Clinical relapse, response and side effects were recorded. RESULTS The cumulative relapse rates of patients in this study were 10.66%, 22.95% and 27.87% at 12, 24 and 36 months, respectively. Complete drug withdrawal was an independent risk factor for disease relapse. Higher serum IgG4 concentrations, involvement of more organs, higher IgG4 RI scores and elevation of eosinophils at baseline were closely associated with disease relapse. Re-elevation of serum IgG4 concentrations and low GC maintenance dosage during the follow-up period were significantly associated with clinical relapse. The GC dosage should be more than 6.25 mg day-1 as monotherapy during the maintenance stage; moreover, combining with immunosuppressants can reduce the GC dosage. Adding GC or immunosuppressants for patients with re-elevation of serum IgG4 levels could prevent later disease relapse. No serious complications were noted during long-term follow-up. CONCLUSIONS The combination of GC with immunosuppressants was more effective than GC monotherapy during the steroid tapering and maintenance stages. Higher serum IgG4 levels, involvement of more organs, higher IgG4 RI scores, history of allergy, eosinophil elevation at baseline, re-elevation of serum IgG4 levels and lower GC maintenance dosage at follow-up might be predictive of relapse.
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Affiliation(s)
- Y Peng
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - J Q Li
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - P P Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - X Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - L Y Peng
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - H Chen
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - J X Zhou
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - S Z Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - H X Yang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - J J Liu
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - H F Guo
- Department of Rheumatology, The Second Hospital of HeBei Medical University, HeBei, China
| | - J Li
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - X Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - Y Zhao
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - X F Zeng
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - F C Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - Y Y Fei
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
| | - W Zhang
- Department of Rheumatology, Clinical Immunology Center, Peking Union Medical College Hospital, Beijing, China
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13
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Li J, Li XL, Yuan Y, Zhang SZ. [Disputes and exploration of neoadjuvant and adjuvant therapy for colon cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:329-335. [PMID: 31054546 DOI: 10.3760/cma.j.issn.1671-0274.2019.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Perioperative treatment combined with radical resection is the major approach to cure non-metastatic colon cancer. A precise evaluation and perioperative treatment would probably improve the R0 resection rate, recurrence-free survival and overall survival of colon cancer patients. Recently, individualized treatment is the mainstream due to the development of molecular pathology and multi-disciplinary therapy. The indications and course of perioperative treatment and preoperative neoadjuvant therapy of colon cancer are still in intense discussion. The present review will mainly discuss three topics. Firstly, the various reaction of adjuvant therapy to stage II colon cancer is caused by patients' heterogeneity. Choosing stratified treatment for these patients according to clinical and molecular pathological features is the future. Secondly, we discuss the adjuvant chemotherapy course for stage III colon cancer according to the Chinese Society of Clinical Oncology (CSCO) guideline and the progress of this field. Lastly, we summarize the status and significance of colon cancer neoadjuvant therapy.
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Affiliation(s)
- J Li
- Department of Surgical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Cancer Institute, Key Laboratory of Cancer Prevention and Intervention of China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X L Li
- Department of Surgical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Cancer Institute, Key Laboratory of Cancer Prevention and Intervention of China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Yuan
- Cancer Institute, Key Laboratory of Cancer Prevention and Intervention of China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Department of Medical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - S Z Zhang
- Department of Surgical Oncology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China; Cancer Institute, Key Laboratory of Cancer Prevention and Intervention of China National Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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14
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Wu ZM, Zhang SZ. [Update of BPPV guideline of AAO and rethinking]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:207-209. [PMID: 30813685 DOI: 10.13201/j.issn.1001-1781.2019.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Indexed: 06/09/2023]
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15
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Liu ZG, Zheng AF, Chen MM, Lian YX, Zhang XK, Zhang SZ, Yu D, Li JK. Isolation and identification of pathogenic Aeromonas veronii from a dead Yangtze finless porpoise. Dis Aquat Organ 2018; 132:13-22. [PMID: 30530927 DOI: 10.3354/dao03288] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Diseases caused by Aeromonas veronii in freshwater fish have been widely reported, but other species such as aquatic mammals have probably been overlooked. Here, we identified one isolate of A. veronii from a Yangtze finless porpoise Neophocaena asiaeorientalis asiaeorientalis exhibiting disease and mortality, and subsequently confirmed its virulence in artificial infection of BALB/c mice. The bacterial isolate was identified as A. veronii based on physiological, biochemical, and phenotypic features, and homology of the 16S rRNA, cpn60, rpoB, dnaJ and gyrB genes. Our results expand the known host spectrum of A. veronii, which is of great importance for the etiology of porpoise, dolphin, and other cetacean diseases.
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Affiliation(s)
- Z G Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
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16
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Mao P, Li CR, Zhang SZ, Zhang Y, Liu BT, Fan BF. Transcriptomic differential lncRNA expression is involved in neuropathic pain in rat dorsal root ganglion after spared sciatic nerve injury. ACTA ACUST UNITED AC 2018; 51:e7113. [PMID: 30066726 PMCID: PMC6065813 DOI: 10.1590/1414-431x20187113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 09/10/2017] [Accepted: 06/11/2018] [Indexed: 12/22/2022]
Abstract
Dorsal root ganglia (DRG) neurons regenerate spontaneously after traumatic or surgical injury. Long noncoding RNAs (lncRNAs) are involved in various biological regulation processes. Conditions of lncRNAs in DRG neuron injury deserve to be further investigated. Transcriptomic analysis was performed by high-throughput Illumina HiSeq2500 sequencing to profile the differential genes in L4–L6 DRGs following rat sciatic nerve tying. A total of 1,228 genes were up-regulated and 1,415 down-regulated. By comparing to rat lncRNA database, 86 known and 26 novel lncRNA genes were found to be differential. The 86 known lncRNA genes modulated 866 target genes subject to gene ontology (GO) and KEGG enrichment analysis. The genes involved in the neurotransmitter status of neurons were downregulated and those involved in a neuronal regeneration were upregulated. Known lncRNA gene rno-Cntnap2 was downregulated. There were 13 credible GO terms for the rno-Cntnap2 gene, which had a putative function in cell component of voltage-gated potassium channel complex on the cell surface for neurites. In 26 novel lncRNA genes, 4 were related to 21 mRNA genes. A novel lncRNA gene AC111653.1 improved rno-Hypm synthesizing huntingtin during sciatic nerve regeneration. Real time qPCR results attested the down-regulation of rno-Cntnap lncRNA gene and the upregulation of AC111653.1 lncRNA gene. A total of 26 novel lncRNAs were found. Known lncRNA gene rno-Cntnap2 and novel lncRNA AC111653.1 were involved in neuropathic pain of DRGs after spared sciatic nerve injury. They contributed to peripheral nerve regeneration via the putative mechanisms.
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Affiliation(s)
- P Mao
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - C R Li
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - S Z Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Department of Biochemical Pharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Y Zhang
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - B T Liu
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - B F Fan
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
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Du Y, Liu XJ, Ren LL, Zhang SZ, Yang SM, Wu ZM. [The application value of suppression head pulse paradigm (SHIMP) in vestibular examination]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:728-732. [PMID: 29873207 DOI: 10.13201/j.issn.1001-1781.2018.10.002] [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: 02/02/2018] [Indexed: 11/12/2022]
Abstract
Objective:To summarize different results of suppression head impulse paradigm (SHIMP) and head impulse paradigm (HIMP) in patients with bilateral and unilateral vestibular loss and to evaluate the practicability of SHIMP in clinical vestibular examination. Method: Seventy subjects with unilateral vestibular loss, bilateral vestibular loss and healthy were included. Morphological characteristics of HIMP and SHIMP results were analyzed. The differences of VOR gains were compared with the paired t test. Result: Almost all SHIMP showed anti-compensatory saccades in healthy group. Less anti-compensatory saccades occurred in the affected side of patient with vestibular loss. The VOR gains showed there was a significant correlation(P<0.05) between HIMP and SHIMP. Conclusion: Different to compensatory saccades in HIMP indicate potential loss in vestibular function, anti-compensatory saccades in SHIMP shows vestibular function in patients. The combination of these two mthods will benefit disease screening and vestibular rehabilitation in clinical examination.
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Affiliation(s)
- Y Du
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
| | - X J Liu
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
| | - L L Ren
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
| | - S Z Zhang
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
| | - S M Yang
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Z M Wu
- Department of Otolaryngology, Head and Neck Surgery, Institute of Otolaryngology, Chinese PLA General Hospital, Beijing, 100853, China
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Hu XH, Zhang SZ, Miao HR, Cui FG, Shen Y, Yang WQ, Xu TT, Chen N, Chi XY, Zhang ZM, Chen J. High-Density Genetic Map Construction and Identification of QTLs Controlling Oleic and Linoleic Acid in Peanut using SLAF-seq and SSRs. Sci Rep 2018; 8:5479. [PMID: 29615772 PMCID: PMC5883025 DOI: 10.1038/s41598-018-23873-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 03/20/2018] [Indexed: 11/08/2022] Open
Abstract
The cultivated peanut, A. hypogaea L., is an important oil and food crop globally.High-density genetic linkage mapping is a valuable and effective method for exploring complex quantitative traits. In this context, a recombinant inbred line (RIL) of 146 lines was developed by crossing Huayu28 and P76. We developed 433,679 high-quality SLAFs, of which 29,075 were polymorphic. 4,817 SLAFs were encoded and grouped into different segregation patterns. A high-resolution genetic map containing 2,334 markers (68 SSRs and 2,266 SNPs) on 20 linkage groups (LGs) spanning 2586.37 cM was constructed for peanut. The average distance between adjacent markers was 2.25 cM. Based on phenotyping in seven environments, QTLs for oleic acid (C18:1), linoleic acid (C18:2) and the ratio of oleic acid to linoleic acid (O/L) were identified and positioned on linkage groups A03, A04, A09, B09 and B10. Marker2575339 and Marker2379598 in B09 were associated with C18:1, C18:2 and O/L in seven environments, Marker4391589 and Marker4463600 in A09 were associated with C18:1, C18:2 and O/L in six environments. This map exhibits high resolution and accuracy, which will facilitate QTL discovery for essential agronomic traits in peanut.
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Affiliation(s)
- X H Hu
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - S Z Zhang
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - H R Miao
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - F G Cui
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - Y Shen
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, P.R. China
| | - W Q Yang
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - T T Xu
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - N Chen
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - X Y Chi
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - Z M Zhang
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China
| | - J Chen
- Shandong Peanut Research Institute, Qingdao, 266100, P.R. China.
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Abstract
OBJECTIVE This study aimed to investigate the role of long non-coding RNA MEG3 (lncRNA MEG3) in osteosarcoma (OS) and further explore the underlying molecular mechanism. MATERIALS AND METHODS The expression profiles of MEG3 in OS cell lines and normal osteoblast cell line were detected by qRT-PCR. MEG3 was over-expressed in OS cell line by using LV-MEG3. MTT and colony-formation assays were applied for cell proliferation analysis. Cell migration assay was applied to investigate the cell migration ability. In addition, the expression levels of cell growth and metastasis related factors (Notch1, Hes1, TGF-β, N-cadheren and E-cadheren) were determined to illustrate the mechanisms. RESULTS We found that compared with normal osteoblast hFOB1.19 cell line, MEG3 was significantly down-regulated in MG63 and U2OS cell lines, particularly in MG-63 cells. MEG3 was significantly up-regulated in MG63 cells by LV-MEG3. Cell proliferation and migration ability were obviously repressed by MEG3 over-expression. In addition, MEG3 over-expression markedly inhibited Notch1, Hes1,TGF-β and N-cadheren expression, and the expression level of E-cadheren was improved. CONCLUSIONS These results indicated that MEG3 could prevent cell growth and metastasis of OS by repressing Notch and TGF-β signaling pathway, thus providing a potential therapeutic target for OS treatment (Tab. 1, Fig. 4, Ref. 30).
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Gao N, Li MT, Li YH, Zhang SH, Dai RP, Zhang SZ, Zhao LD, Wang L, Zhang FC, Zhao Y, Zeng XF. Retinal vasculopathy in patients with systemic lupus erythematosus. Lupus 2017; 26:1182-1189. [PMID: 28355986 DOI: 10.1177/0961203317698050] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A retrospective case control study was conducted in the Peking Union Medical College Hospital. Medical records were reviewed for demographic data, clinical features, laboratory results, systemic lupus erythematosus (SLE) disease activity evaluations, and ophthalmic examinations to investigate the clinical characteristics and significance of retinal vasculopathy (RV) in Chinese patients with systemic lupus erythematosus. The prevalence of RV was approximately 0.66% (35/5298) in SLE patients. A total of 60 eyes were involved. The ocular presentations included decrease of visual acuity (48/60, 80%), visual field loss (7/60, 11.7%), and diplopia (3/60, 5%). Ophthalmic fundoscopic examination revealed cotton-wool spots (30/60, 50%), retinal vascular attenuation (31/60, 51.6%), and hemorrhages (41/60, 68.3%). Retinal angiogram showed that 72.7% (16/22) eyes had vaso-occlusion. The ophthalmic episodes could occur at any stage of SLE duration, with a median of 12 months (0-168 months) following SLE onset. Twenty-one (35%) eyes did not recover, or even worsened, during hospital stay. RV was found to be significantly associated with neuropsychiatric lesions (51.4% vs. 21.3%, p = .005) and hematological disturbance (62.9% vs. 34.3%, p = .005). SLE patients with RV had significantly higher SLE disease activity index scores than controls (19.9 ± 0.9 vs. 10.2 ± 0.7, p < .001). An inverse association of anti-SSA antibody with RV was detected (34.3% vs. 67.1%, p = .001). Nervous system disturbance (odds ratio (OR) = 4.340, 95% confidence interval (CI) 1.438, 13.094, p = .009) and leukocytopenia (OR = 6.385, 95% CI 1.916, 21.278, p = .003) were independent risk factors, while anti-SSA antibody positivity (OR = 0.249, 95% CI 0.087, 0.710, p = .009) was a protective factor for RV in SLE patients. In certain cases, RV is a threatening condition for SLE patients presenting with clinical ocular manifestations. Ophthalmo-fundoscopic detection is recommended as soon as SLE is diagnosed.
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Affiliation(s)
- N Gao
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - M T Li
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Y H Li
- 2 Department of Rheumatology, No.323 PLA Hospital, Xi'an, China
| | - S H Zhang
- 3 Department of Ophthalmology, Peking Union Medical College Hospital, Beijing, China
| | - R P Dai
- 3 Department of Ophthalmology, Peking Union Medical College Hospital, Beijing, China
| | - S Z Zhang
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - L D Zhao
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - L Wang
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - F C Zhang
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Y Zhao
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X F Zeng
- 1 Department of Rheumatology, Peking Union Medical College Hospital, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
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21
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Zhang SZ, Song J, Zhong MS, Zhang ZH. [The application of U-shaped cartilage-perichondrium tympanoplastyfor subtotal tympanic membrane perforation]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1139-1141. [PMID: 29798441 DOI: 10.13201/j.issn.1001-1781.2016.14.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the anatomical and functional results of U-shaped cartilage-perichondrium tympanoplasty for subtotal tympanic membrance perforation.Method:A retrospective study was carried out 45 patients(45 ears) with chronic otitis media treated with U-shaped cartilage-perichondrium tympanoplasty.Patients were followed up to assess anatomic and functional results and the data was analyzed statistically.Result:Forty-five cases were followed up successfully,all cases had a tympanic membrane with no irregularities(100%),and the average air-bone gaps of pure tone audiometry of 0.25,0.50,1.00,2.00,4.00 kHz were reduced significantly(P<0.05).Conclusion:U-shaped cartilage-perichondrium tympanoplasty for subtotal tympanic membrane perforation is good with high survival rate and better results of hearing.
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Affiliation(s)
- S Z Zhang
- Department of Otolaryngology,the Shenzhen Seventh People's Hospital,Shenzhen,518081,China
| | - J Song
- Department of Otolaryngology,the Shenzhen Seventh People's Hospital,Shenzhen,518081,China
| | - M S Zhong
- Department of Otolaryngology,the Shenzhen Seventh People's Hospital,Shenzhen,518081,China
| | - Z H Zhang
- Department of Otolaryngology,the Shenzhen Seventh People's Hospital,Shenzhen,518081,China
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Zhu HN, Zhang SZ, Zhou YK, Wang CL, Wu XB. Cloning and sequence analysis of the coding sequence of β-actin cDNA from the Chinese alligator and suitable internal reference primers from the β-actin gene. Genet Mol Res 2015; 14:12159-67. [PMID: 26505364 DOI: 10.4238/2015.october.9.4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
β-Actin is an essential component of the cytoskeleton and is stably expressed in various tissues of animals, thus, it is commonly used as an internal reference for gene expression studies. In this study, a 1731-bp fragment of β-actin cDNA from Alligator sinensis was obtained using the homology cloning technique. Sequence analysis showed that this fragment contained the complete coding sequence of the β-actin gene (1128 bp), encoding 375 amino acids. The amino acid sequence of β-actin is highly conserved and its nucleotide sequence is slightly variable. Multiple alignment analyses showed that the nucleotide sequence of the β-actin gene from A. sinensis is very similar to sequences from birds, with 94-95% identity. Ten pairs of primers with different product sizes and different annealing temperatures were screened by PCR amplification, agarose gel electrophoresis, and DNA sequencing, and could be used as internal reference primers in gene expression studies. This study expands our knowledge of β-actin gene phylogenetic evolution and provides a basis for quantitative gene expression studies in A. sinensis.
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Affiliation(s)
- H N Zhu
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - S Z Zhang
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
| | - Y K Zhou
- Alligator Research Center of Anhui Province, Xuanzhou, China
| | - C L Wang
- Alligator Research Center of Anhui Province, Xuanzhou, China
| | - X B Wu
- College of Life Sciences, Anhui Normal University, Wuhu, Anhui, China
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Chen Z, Li MT, Xu D, Leng XM, Wang Q, Tian XP, Zhang SZ, Zhao Y, Zeng XF. Organ damage in patients with incomplete lupus syndromes: from a Chinese academic center. Clin Rheumatol 2015; 34:1383-9. [PMID: 25687983 DOI: 10.1007/s10067-015-2884-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 01/06/2015] [Accepted: 01/22/2015] [Indexed: 11/24/2022]
Abstract
With this study, we provide insight into the clinical characteristics, laboratory characteristics, and organ damage associated with incomplete lupus syndromes (ILE) and search for predictors of organ damage in ILE. A retrospective chart review was performed on 77 hospitalized patients with ILE. The control patient group comprised 2104 systemic lupus erythematosus (SLE) patients who were entered into the Chinese SLE Treatment and Research group (CSTAR). The Systemic Lupus International Collaborating Clinics (SLICC)/ACR Damage Index (SDI) was used to classify damage features. Based on their SDI score, ILE patients were divided into SDI > 0 and SDI = 0 groups. The percentages of anti-SSA-seropositive (54.5 %) and anti-RNP-seropositive (24.7 %) patients with ILE were higher than those found among the SLE patients from CSTAR (p < 0.001). The mean SDI score was 0.66 (range 0-2), and a damage score greater than 0 was present in 41 (53.3 %) patients. The most prevalent damage category was pulmonary damage, present in 17 (22.1 %) patients. Peripheral vascular damage occurred in individuals who were significantly older than those who had musculoskeletal damage (p = 0.031). The subgroup with SDI > 0 had a higher mean age (36.8 ± 2.04 years) than those with SDI = 0 (30.8 ± 2.08 years; p = 0.044). The mean SLEDAI score in the SDI > 0 patient group (8.2 ± 0.74) was higher than that of the SDI = 0 group (4.8 ± 0.54; p = 0.001). ILE patients may include a subset that is likely to experience progressive organ damage. Organ damage was more common in patients of older age and with high SLEDAI scores.
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Affiliation(s)
- Zhen Chen
- Department of Rheumatology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, People's Republic China
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Zhou XQ, Huang SY, Zhang DS, Zhang SZ, Li WG, Chen ZW, Wu HW. Effects of 5-aza-2'deoxycytidine on RECK gene expression and tumor invasion in salivary adenoid cystic carcinoma. ACTA ACUST UNITED AC 2014; 48:254-60. [PMID: 25517920 PMCID: PMC4381946 DOI: 10.1590/1414-431x20144102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/13/2014] [Indexed: 11/22/2022]
Abstract
Reversion-inducing cysteine-rich protein with kazal motifs (RECK), a
novel tumor suppressor gene that negatively regulates matrix metalloproteinases
(MMPs), is expressed in various normal human tissues but downregulated in several
types of human tumors. The molecular mechanism for this downregulation and its
biological significance in salivary adenoid cystic carcinoma (SACC) are unclear. In
the present study, we investigated the effects of a DNA methyltransferase (DNMT)
inhibitor, 5-aza-2′deoxycytidine (5-aza-dC), on the methylation status of the
RECK gene and tumor invasion in SACC cell lines.
Methylation-specific PCR (MSP), Western blot analysis, and quantitative real-time PCR
were used to investigate the methylation status of the RECK gene and
expression of RECK mRNA and protein in SACC cell lines. The invasive ability of SACC
cells was examined by the Transwell migration assay. Promoter methylation was only
found in the ACC-M cell line. Treatment of ACC-M cells with 5-aza-dC partially
reversed the hypermethylation status of the RECK gene and
significantly enhanced the expression of mRNA and protein, and 5-aza-dC significantly
suppressed ACC-M cell invasive ability. Our findings showed that 5-aza-dC inhibited
cancer cell invasion through the reversal of RECK gene
hypermethylation, which might be a promising chemotherapy approach in SACC
treatment.
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Affiliation(s)
- X Q Zhou
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan, China
| | - S Y Huang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - D S Zhang
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Shandong University, Jinan, China
| | - S Z Zhang
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - W G Li
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - Z W Chen
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
| | - H W Wu
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital, Affiliated to Shandong University, Jinan, China
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25
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Wang L, Ding XY, Yu JK, Zhang SZ, Zheng W. Biomarkers of peritoneal fluid in endometriosis identified by surface-enhanced laser desorption/ionization time-of-flight. CLIN EXP OBSTET GYN 2014; 41:72-74. [PMID: 24707688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES This work aims to detect the peritoneal fluid proteomic patterns in endometriosis patients, build diagnostic models, and evaluate its clinical significance. STUDY DESIGN The authors used SELDI-TOF-MS protein chip array technology to detect biomarkers of peritoneal fluid in endometriosis patients. Fourteen endometriosis patients and 16 persons without endometriosis as control group were tested. RESULTS Four potential biomarkers (4428m/z, 6891m/z, 13766m/z, and 6427m/z) were found. CONCLUSIONS This method showed great potential in screening better biomarkers for endometriosis.
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Liu YQ, Tao DC, Liao SY, Yang Y, Ma YX, Zhang SZ. Identification of a novel human testicular interstitial gene, RNF148, and its expression regulated by histone deacetylases. Genet Mol Res 2013; 12:4060-9. [PMID: 24089095 DOI: 10.4238/2013.september.27.7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Multiple genes are restrictively expressed in mammalian testicular tissues, and they play important roles in the complex process of spermatogenesis. Investigation of these genes and their expression regulation mechanisms is valuable to elucidate the molecular process of spermatogenesis. In this study, we identified a novel human gene, ring finger protein 148 (RNF148) that is abundantly expressed in testes and slightly expressed in pancreas. In situ hybridization analysis showed that RNF148 messenger RNA was mainly present in the interstitial cells of human testicular tissues, and immunohistochemical analysis confirmed protein levels in that location. Treatment with histone deacetylase inhibitor trichostatin A activated the expression of RNF148 messenger RNA in a time- and concentration-dependent manner in HEK293T and HeLa cells, neither of which normally express RNF148. Chromatin immunoprecipitation analysis showed that trichostatin A treatment increased the binding of acetylated histone H3 to the RNF148 gene promoter. We identified a novel human testicular interstitial gene and observed that histone deacetylases regulate RNF148 expression.
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Affiliation(s)
- Y Q Liu
- Department of Medical Genetics, Division of Human Morbid Genomics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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Yu XY, Chen GM, Zhang SZ. A refinement to the liquidus-tracking method for vitreous preservation of articular cartilage. Cryo Letters 2013; 34:267-276. [PMID: 23812317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The recent liquidus-tracking method developed by Pegg et al. (2006a), as an alternative pathway to vitrification, achieved reasonable survival of post-thawing chondrocytes in situ. One of the main drawbacks of this method is the long duration of the cryoprotectant addition/removal process. This study was conducted to investigate the possibility of reducing the time by rationalizing the final dimethyl sulfoxide (Me2SO) concentration loaded in tissue before being plunged into liquid nitrogen. Using the differential scanning calorimetric technique, the critical cooling and warming rates for solutions of Me2SO in CPTes2 (a potassium-rich medium, modified slightly from Taylor's original formulation by Pegg et al.) were obtained. The critical cooling and warming rates for 47.5 percent (w/w) solution are < 2.5 degree C per min and < 10 degree C per min, respectively, which could be readily realized for 4 ml solution samples held in polypropylene cryovials as demonstrated by experiments. For articular cartilage, 47.5 percent (w/w) may be recommended as the final concentration of Me2SO loaded in the tissue, which will lead to a time cut of about one-third compared with the original protocol of Pegg et al. (2006a).
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Affiliation(s)
- X Y Yu
- Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou, China
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28
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Hu XH, Zheng WL, Wang D, Xie SS, Wu R, Zhang SZ. Accuracy of high-pitch prospectively ECG-triggering CT coronary angiography for assessment of stenosis in 103 patients: comparison with invasive coronary angiography. Clin Radiol 2012; 67:1083-8. [PMID: 22613169 DOI: 10.1016/j.crad.2012.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/22/2012] [Accepted: 03/27/2012] [Indexed: 10/28/2022]
Abstract
AIM To investigate the accuracy of high-pitch prospectively electrocardiogram (ECG)-triggering low-dose, dual-source computed tomography (CT) coronary angiography for assessing coronary artery stenosis compared with conventional coronary angiography. MATERIALS AND METHODS One hundred and three patients undergoing high-pitch CT coronary angiography (CTCA) and conventional coronary angiography (CCA) within 30 days were enrolled. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of high-pitch CTCA for detecting >50 and >70% stenosis were evaluated using CCA as the reference standard on a per-segment, per-vessel, and per-patient basis. Two experienced radiologists independently rated high-pitch CTCA images for quality using a four-point scale (1 = excellent, 4 = non-diagnostic) on a per-segment basis. The effective dose was calculated by multiplying the conversion coefficient of 0.028 by the dose-length product. RESULTS The mean heart rate of patients was 57 ± 6 beats/min. For detecting >50% stenosis, the sensitivity, specificity, PPV, and NPV of high-pitch CTCA were 89, 97, 87, and 97% on a per-segment basis; 91, 92, 92, and 91% on a per-vessel basis; and 99, 85, 96, and 94% on a per-patient basis. For detecting >70% stenosis, the sensitivity, specificity, PPV, and NPV of high-pitch CTCA were 96, 98, 90, and 99% on a per-segment basis. Coronary segments were rated as diagnostic in 98.6% (1355/1375) of cases (score 1, 72.5%; score 2, 23.1%; score 3, 3%; score 4, 1.4%). The effective dose of high-pitch CTCA was 1.51 ± 0.31 mSv. CONCLUSION High-pitch prospectively ECG-triggering dual-source CTCA provides good image quality and high diagnostic accuracy with a 1.51 mSv radiation dose.
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Affiliation(s)
- X H Hu
- Department of Radiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, China
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29
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Zhang LY, Zeng M, Chen P, Sun HQ, Tao DC, Liu YQ, Lin L, Yang Y, Zhang SZ, Ma YX. Identification of messenger RNA substrates for mouse T-STAR. Biochemistry (Mosc) 2010; 74:1270-7. [PMID: 19916944 DOI: 10.1134/s0006297909110145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Using the method of isolation of specific nucleic acids associated with proteins (SNAAP), we have identified 10 candidate target mRNA substrates bound by mT-STAR (mouse T-STAR protein) from testis extract. Among them, our study focused on Fabp9, a gene that is essential for male gametogenesis, and showed that mT-STAR could directly bind to Fabp9 mRNAs. The binding sites are in a short sequence of the coding region and 3' untranslated region of Fabp9 mRNA. These suggest that mT-STAR can regulate the metabolism and expression of Fabp9. In conclusion, identification of mT-STAR-bound mRNA substrates might help to illustrate the potential spectrum of the process and provide valuable insight into the biological function of this RNA-binding protein in spermatogenesis.
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Affiliation(s)
- L Y Zhang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, P. R. China
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30
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Zhang SZ, Li MT, He JG, Zeng XF. [Effects of three immunosuppressive agents and simvastatin on cell-proliferation and endothelin secretion of human endothelial cells]. Zhonghua Nei Ke Za Zhi 2008; 47:495-498. [PMID: 19040069] [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: 05/27/2023]
Abstract
OBJECTIVE To evaluate the effects of four agents including cyclophosphamide, thalidomide, total glucosides of peony (TGP) and simvastatin on cell-proliferation and endothelin-1 secretion of human endothelial cells (ECs). METHODS EA. hy926 cells were cultured until confluence was achieved, then incubated separately for 24 h, 48 h and 72 h with various concentration of these four agents. The proliferation of ECs was detected with 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium-bromide (MTT). The amount of endothelin-1 in supernatants of ECs was determined with enzyme linked immunosorbent assay. RESULTS (1) Cyclophosphamide, TGP and simvastatin inhibited ECs proliferation in a dose dependent manner at 72 h (P <0.05). (2) Cyclophosphamide (50-2000 micromol/L) and simvastatin (5-10 micromol/L) decreased endothelin-1 secretion but not in dose dependent manner. CONCLUSION Cyclophosphamide, TGP and simvastatin can inhibit ECs proliferation. Cyclophosphamide and simvastatin can decrease endothelin-1 secretion of human ECs.
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Affiliation(s)
- Shang-Zhu Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Lai C, Zhang SZ, Liu HM, Zhou YB, Zhang YY, Zhang QW, Han GC. White matter tractography by diffusion tensor imaging plays an important role in prognosis estimation of acute lacunar infarctions. Br J Radiol 2007; 80:782-9. [PMID: 17875590 DOI: 10.1259/bjr/99366083] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The aim of this study was to evaluate the anatomical and clinical relationship between lacunar infarction and the corticospinal tract (CST) in patients with acute lacunar infarction and predict clinical outcome. We examined 28 pyramidal tract stroke patients in the acute phase or early subacute phase (<3 days) with a marked motor deficit. The anatomical location and the extent of CST involvement within the infarcts were visualized on three-dimensional colour-coded diffusion tensor tractography (DTT). With regard to the CST, all patients were divided into three clinical subgroups: Group 1 (intact type), Group 2 (partial involvement type) and Group 3 (whole involvement type). Subsequently, the severity of the motor deficit of each patient was determined according to the National Institutes of Health Stroke Scale (NIHSS) scores at the acute/early subacute phase (<3 days after onset of symptoms), early chronic phase (8-14 days) and outcome (30-60 days). NIHSS scores of Group 1 (12/28) were significantly lower than those of Group 2 (9/28) at the acute phase or early subacute phase (U = -2.816, p<0.01), and those of Group 2 were significantly lower than those of Group 3 (7/28) (U = -3.136, p<0.01). At outcome,NIHSS scores of Group 1 were significantly lower than those of Group 2 (U = -2.846, p<0.01), and scores of Group 2 were significantly lower than those of Group 3 (U = -3.130, p<0.01). At the same time, the NIHSS scores of each group gradually decreased from acute phase to outcome, Neurological improvement was statistically different among the three topographical types of infarction (H = 26.15, p<0.01; H = 11.03, p<0.01; H = 10.05, p<0.01). In conclusion, the three-dimensional colour-coded DTT allows in vivo differentiation of distinct CST stroke subtypes and may help in better establishing the prognosis for patients after CST stroke.
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Affiliation(s)
- C Lai
- Department of Radiology, The Children's Hospital, The Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Yang Y, Ma MY, Xiao CY, Li L, Li SW, Zhang SZ. Massive deletion in AZFb/b+c and azoospermia with Sertoli cell only and/or maturation arrest. ACTA ACUST UNITED AC 2007; 31:573-8. [PMID: 17877719 DOI: 10.1111/j.1365-2605.2007.00808.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Recent studies have revealed that AZF deletion in Y chromosome is the most common known molecular genetic cause of spermatogenetic failure leading to male infertility. Characteristics of AZFa, AZFb and AZFc deletions and their association with spermatogenic impairment have been reported in a large number of populations. However, the distributions of those larger deletions resulted from P5/proximal-P1, P5/distal-P1 and P4/distal-P1 recombinations are still unclear as the literature on their frequencies is limited, and the contribution of these deletions to spermatogenetic failure remain to be confirmed by population studies. In this study, we investigated such massive deletions in 387 idiopathic azoospermic, 269 oligozoospermic patients and 315 men with normal spermatogenesis using 21 AZFb/c specific sequence-tagged sites. As a result, nine uninterrupted massive deletions were observed exclusively in men with azoospermia caused by either Sertoli cell only (SCO) or maturation arrest (MA). Prevalence of the deletion was 2.33%, in which five deletions arose from non-allelic homologous recombination between the palindromes P5 and P1 and two between P4 and P1. In other two deletions, novel proximal breakpoints in the interval region between P4 and P3 were observed. Our findings strongly support that the massive deletions in the AZFb or AZFb+c regions are important genetic causes of SCO and/or MA resulting in azoospermia and, besides the P5/proximal-P1, P5/distal-P1 and P4/distal-P1 deletions there may be other massive deletions in these regions resulting in severe spermatogenic impairment.
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Affiliation(s)
- Y Yang
- Department of Medical Genetics, State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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33
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Di HB, Yu SM, Weng XC, Laureys S, Yu D, Li JQ, Qin PM, Zhu YH, Zhang SZ, Chen YZ. Cerebral response to patient's own name in the vegetative and minimally conscious states. Neurology 2007; 68:895-9. [PMID: 17372124 DOI: 10.1212/01.wnl.0000258544.79024.d0] [Citation(s) in RCA: 211] [Impact Index Per Article: 12.4] [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: 12/12/2022] Open
Abstract
BACKGROUND A challenge in the management of severely brain-damaged patients with altered states of consciousness is the differential diagnosis between the vegetative state (VS) and the minimally conscious state (MCS), especially for the gray zone separating these clinical entities. OBJECTIVE To evaluate the differences in brain activation in response to presentation of the patient's own name spoken by a familiar voice (SON-FV) in patients with VS and MCS. METHODS By using fMRI, we prospectively studied residual cerebral activation to SON-FV in seven patients with VS and four with MCS. Behavioral evaluation was performed by means of standardized testing up to 3 months post-fMRI. RESULTS Two patients with VS failed to show any significant cerebral activation. Three patients with VS showed SON-FV induced activation within the primary auditory cortex. Finally, two patients with VS and all four patients with MCS not only showed activation in primary auditory cortex but also in hierarchically higher order associative temporal areas. These two patients with VS showing the most widespread activation subsequently showed clinical improvement to MCS observed 3 months after their fMRI scan. CONCLUSION The cerebral responses to patient's own name spoken by a familiar voice as measured by fMRI might be a useful tool to preclinically distinguish minimally conscious state-like cognitive processing in some patients behaviorally classified as vegetative.
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Affiliation(s)
- H B Di
- Zhejiang University School of Medicine, Hangzhou 310006, China
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Wang SX, Zhang SZ, Shan XQ. Fractionation of heavy metals in different particle-size sediments and its relationship with heavy metal pollution. Bull Environ Contam Toxicol 2003; 71:873-880. [PMID: 14705645 DOI: 10.1007/s00128-003-0223-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- S X Wang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Post Office Box 2871, Beijing 10085, People's Republic of China
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35
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Abstract
Based on a two-parameter model [Cryobiology 37 (1998) 271-289], the analytical solution for the extremums of cell water volume and cell volume for a two-solute system are obtained. Compared with the numerical solution, the analytical solution offers an accurate but simple choice. The approximate solution [Cryobiology 40 (2000) 64-83] for the extremum of cell water volume is also discussed, the reason for the deviation is presented.
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Affiliation(s)
- S Z Zhang
- Refrigeration and Cryogenic Engineering Institute, Zhejiang University, Hangzhou, 310027, China.
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36
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Ban GH, Chu JY, Xu SB, Yang ZQ, Qian YP, Yu JK, Na JB, Liu XJ, Zhang SZ. [Distribution of MICA microsatellite in 13 population groups of China]. Yi Chuan Xue Bao 2002; 28:1085-92. [PMID: 11797336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The genetic data of MICA microsatellite were obtained by genotyping 577 samples in 13 population groups of China, which are Han-YN, Han-GD, Han-SD, Bai, Dai, Lahu, Li, Naxi, Sala, She, Tu, Wa and Zang-YN, with genescan. Five alleles have been observed in the population groups, which are A4, A5, A5.1, A6 and A9. A5 allele is the most frequent in all population groups except Lahu and Li, while the most frequent allele for Lahu and Li is A5. 1 and A4 respectively. The second most frequent allele is the A5.1 in Han-YN, Han-SD, Dai, Naxi, Sala, She, and Wa. The lest frequent allele for Han-YN, Han-GD, Lahu, Naxi, She, Wa is the A6 which is not observed in Li. A4 allele is the lest frequent in Han-SD, Bai, Dai, Sala, Tu, Zang-YN. The results show that the distribution of MICA microsatellite is different in these population groups, and the polymorphism information contents (PIC) of this microsatellite is high. It is a potential useful marker in the study of human origin and migration, personal identification, gene mapping and location, and disease diagnosis.
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Affiliation(s)
- G H Ban
- Institute of Medical Biology of Chinese Academy of Medical Sciences & Peking Union Medical College, Kunming 650118, China
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37
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Hou YP, Tang JP, Dong JG, Ji Q, Li YB, Wu J, Zhang SZ, Zhang J, Yan J, Walter H, Prinz M. Further characterization and population data for the pentanucleotide STR polymorphism D10S2325. Forensic Sci Int 2001; 123:107-10. [PMID: 11728734 DOI: 10.1016/s0379-0738(01)00522-9] [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: 11/22/2022]
Abstract
Pentanucleotide tandem repeat markers are interesting for forensic sciences, because they may present less stutter on the electrophoretic pattern. We focused on the analysis of the DNA sequence for each allele at the pentanucleotide STR locus D10S2325 in order to understand their structures in the human genome and to construct human allelic ladder, which is necessary for forensic DNA typing. In order to evaluate the forensic applicability of D10S2325 and to construct a preliminary database, the genotype distributions and allele frequencies in three major ethnic groups were investigated. The population samples included Caucasians (Germans), Africans (African Americans), and Asians (Chinese). A total of 520 samples from unrelated individuals was analyzed by Amp-FLP. An example of each allele and new alleles were sequenced. Allele determination was carried out by comparison with a sequenced human allelic ladder made in-house. This pentanucleotide STR provided easily interpretable results. A total of 15 alleles was found in our population samples. Three new alleles were observed and named as alleles 19 and 21 based on the number of repeat motifs, while allele 19 can be divided further into two alleles, 19a and 19 according to analysis of the sequence. No evidence of deviation from Hardy-Weinberg equilibrium was observed. In 64 confirmed father/mother/child triplets no mutation event was observed. Using a maximum likelihood method, the mutation rate was indirectly estimated as 2.5 x 10(-5). These results suggest that D10S2325 is a useful marker for forensic casework and paternity analysis.
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Affiliation(s)
- Y P Hou
- Institute of Forensic Medicine, Sichuan University, (West China University of Medical Sciences), Chengdu 610041, PR China.
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38
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Wang XY, Chen PD, Zhang SZ. [Pyramiding and marker-assisted selection for powdery mildew resistance genes in common wheat]. Yi Chuan Xue Bao 2001; 28:640-6. [PMID: 11480176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
This project used the strategy of discarding susceptible individual plants and keeping resistance ones by resistance identification in breeding populations and planted resistant plants next in earlier generations (F1-F3), and performing marker-assisted selection combining resistance identification in later generation (F4 generation) for pyramiding powdery mildew resistance. F4 populations from crosses of elite parents possessing different Pm genes were screened by using molecular markers tightly linked to Pm2, Pm4a, Pm8 and Pm21 genes, respectively. Fourteen individual plants with Pm4a and Pm21 out of 40 F4 plants were identified. Sixteen individual plants containing Pm2 and Pm4a out of 80 F4 plants and six plants possessing Pm8 + Pm21 out of 58 F2 plants were screened. Notably, the plants with Pm2 and Pm4a showed high level resistance or immunity to powdery mildew, while plants with single Pm2 or Pm4a had lower resistance. The results suggest that the strategy of pyramiding different Pm genes provide an alternative way of utilizing resistance gene resources for breeding new types of resistance lines and cultivars, which will have significance not only in breeding practice but also in theoretical research.
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Affiliation(s)
- X Y Wang
- Cytogenetic Institute of Nanjing Agricultural University, Nanjing 210095, China
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39
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Xiao CY, Wang J, Zhang SZ, Van Hul W, Wuyts W, Qiu WM, Wu H, Zhang G. A novel deletion mutation of the EXT2 gene in a large Chinese pedigree with hereditary multiple exostosis. Br J Cancer 2001; 85:176-81. [PMID: 11461073 PMCID: PMC2364055 DOI: 10.1054/bjoc.2001.1880] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Hereditary multiple exostoses (EXT) is an autosomal dominant disease characterized by the formation of cartilage-capped prominences (exostoses) that develop from the juxta-epiphyseal regions of the long bones. 3 genes are known to be involved in the formation of exostoses. Among them, EXT1 and EXT2, which encode enzymes that catalyse the biosynthesis of heparan sulfate, an important component of the extracellular matrix, are responsible for over 70% of the EXT cases. A large Chinese family with hereditary multiple exostoses has been analysed and the disease-causing mutation has been found. Blood samples were obtained from 69 family members, including 23 affected individuals. The EXT phenotype was shown to be linked to the EXT2 gene by using 2-point linkage analysis. After polymerase chain reaction (PCR)-single strand conformation polymorphism (SSCP) analysis and DNA sequencing, a previously unreported deletion of a G in exon 3 of EXT2 gene was observed. This deletion co-segregated with the disease phenotype, suggesting that it is the disease-causing mutation in this family. Furthermore, in at least 4 members chondrosarcoma occurred after either an operation or injury of the exostosis and 3 of them died of the malignancy in the family. Whether the operation or injury was responsible for the malignant transformation still needs further study.
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Affiliation(s)
- C Y Xiao
- Department of Medical Genetics, West China Medical Center, Sichuan University, Chengdu, 610041, P. R. China
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40
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Gusler G, Gorsline J, Levy G, Zhang SZ, Weston IE, Naret D, Berner B. Pharmacokinetics of metformin gastric-retentive tablets in healthy volunteers. J Clin Pharmacol 2001; 41:655-61. [PMID: 11402634 DOI: 10.1177/00912700122010546] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The single-dose pharmacokinetics of two gastric-retentive, extended-release tablet formulations of metformin hydrochloride in fed, healthy volunteers were compared with those of the currently marketed immediate-release metformin hydrochloride product. The plasma concentration-time profiles demonstrated extended-release characteristics from the gastric-retentive tablets. The mean bioavailability from each gastric-retentive tablet was approximately 115%, relative to the immediate-release (IR) product. Cmax values were lower and tmax values were greater for the gastric-retentive tablets compared with the IR product. In contrast to conventional extended-release metformin tablets reported in the literature, these gastric-retentive tablets showed extended-release plasma concentration profiles of metformin hydrochloride and increased bioavailability compared with the immediate-release tablet.
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Affiliation(s)
- G Gusler
- DepoMed, Inc., 1360 O'Brien Drive, Menlo Park, CA 94025-1436, USA
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41
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Abstract
Human chromosome Y-specific short tandem repeat (Y-specific STR) markers have useful properties for forensic applications. However, there is a need to develop more Y-specific STR markers, because the discriminating power of each STR locus is limited. In the present study, we describe our results on six new Y-specific STR markers that were initially located using sequence database information by Ayub et al. and were named DYS434, DYS435, DYS436, DYS437, DYS438 and DYS439. Our studies focused on the analysis of the DNA sequence for each allele at all six Y-specific STR loci in order to understand their structures in the human genome and to construct human allelic ladders, which are necessary for forensic DNA typing. In addition, the haplotype distribution for all six analyzed loci was studied in a Chinese Han population sample. The results indicate that DYS434, DYS435, DYS436, DYS437, DYS438 and DYS439 are useful Y-specific STR markers for forensic sciences.
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Affiliation(s)
- Y P Hou
- Institute of Forensic Medicine, West China University of Medical Sciences, Chengdu, 610041, Sichuan, PR China.
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42
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Hu YP, Hu WJ, Zheng WC, Li JX, Dai DS, Wang XM, Zhang SZ, Yu HY, Sun W, Hao GR. Establishment of transgenic mouse harboring hepatitis B virus (adr subtype) genomes. World J Gastroenterol 2001; 7:111-4. [PMID: 11819744 PMCID: PMC4688685 DOI: 10.3748/wjg.v7.i1.111] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Y P Hu
- Department of Cell Biology, Second Military Medical University Shanghai 200433, China. yphu@ smmu.edu.cn
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43
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Zhang SZ, Dong MM, Teng XJ, Chen TH, Zhang S. [Quantitative assay of telomerase activity in head and neck squamous cell carcinoma]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:393-5. [PMID: 12563906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To detect and quantify telomerase activity in tissues from head and neck squamous cell carcinoma (HNSCC), and to explore whether the levels of telomerase activity can be a useful marker for cancer risk assessment in HNSCC. METHOD The levels of telomerase activity of 55 fresh specimens obtained from 25 patients with HNSCC were detected by the method of telomeric repeat scintillation radioactive count, including 25 primary tumors, 7 samples of neck metastases and 23 corresponding normal tissues as control. In 7 patients, both primary and metastatic tumors were obtained. The levels of telomerase activity were determined with a liquid scintillation counter. The basic principle of the technique is that a G-rich oligonucleotide strand of telomeric sequence is used as primer, 3H-dTTPs are incorporated into the products while telomerase elongates the primers, and then free 3H-dTTPs are removed by rinsing step, finally radioactive count per minute (cpm) of products is detected, and the levels telomerase activity can be evaluated according to the value (cpm). RESULT 1. The levels of telomerase activity (cpm) in tissues with HNSCC were significantly higher than those in the normal tissues (P < 0.05); 2. The levels of telomerase activity in the primary tumors were higher than those of their neck metastases, but the difference was not statistical significance (P > 0.05); 3. The levels of telomerase activity in the neck metastases were remarkably higher than those in the normal tissues (P < 0.05). CONCLUSION 1. Detection of telomerase activity in HNSCCs can be a useful marker for cancer assessment. 2. To quantify telomerase activity may have clinical diagnostic value for HNSCC. 3. The levels of telomerase activity in the metastatic lymph nodes were higher.
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Affiliation(s)
- S Z Zhang
- Department of Otolaryngology, Third Affiliated Hospital of Xinxiang Medical College, Xinxiang 453003
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44
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Zhang DS, Yin XQ, Zhang SZ, Wang PY, Yuan XL, Geng B, Sun SZ. [The effect of CO2 laser combined with chloroquini phosphate in the treatment of oral lichen planus: report of 80 cases]. Shanghai Kou Qiang Yi Xue 2000; 9:187-8. [PMID: 15014803] [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: 04/29/2023]
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45
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Cheng L, Zhang SZ, Xiao CY, Hou YP, Li L, Luo HC, Jiang HY, Zuo WQ. The A5.1 allele of the major histocompatibility complex class I chain-related gene A is associated with psoriasis vulgaris in Chinese. Br J Dermatol 2000; 143:324-9. [PMID: 10951140 DOI: 10.1046/j.1365-2133.2000.03658.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Recent studies have demonstrated an association of a polymorphic (GCT)n triplet repeat in the transmembrane (TM) region of the major histocompatibility complex (MHC) class I chain-related gene A (MICA), one of the MHC class I chain-related (MIC) family members, with some autoimmune diseases, including Behçet's disease, acute anterior uveitis, Takayasu's arteritis and others. OBJECTIVES The aim of this study was to examine whether the MICA gene is associated with psoriasis vulgaris (PS) in Chinese. PATIENTS AND METHODS The (GCT)n polymorphism of the MICA gene was investigated in 200 healthy Chinese of Han origin and 300 patients with PS by polymerase chain reaction amplification and denaturing polyacrylamide gel electrophoresis. RESULTS Five alleles, namely A4, A5, A6, A9 and A5.1 were found in both groups. Comparison of the data from both groups revealed that the A5.1 allele was present at a significantly higher frequency in the patient group (41.5%) than in the control group (23.0%) (Pc < 0.0001, Pc means the probability of a comparison with the control group). The frequency of A5.1-positive cases was also significantly increased in the patient group (68.0%) as compared with the controls (38.0%) (Pc < 0.0001). Furthermore, the carrier frequency of A5.1-positive was significantly increased in psoriatic patients with a positive family history and with early onset as compared with sporadic cases (Pc = 0.0005) and with late onset PS (Pc = 0.002). CONCLUSIONS These results suggest that the MICA gene may be associated with the development of PS in Chinese.
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Affiliation(s)
- L Cheng
- Department of Medical Genetics, West China University of Medical Sciences, Chengdu, 610041, Sichuan, The People's Republic of China
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46
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Wang YD, Guo L, Qian SJ, Meng GZ, Zhang SZ. [Modification of L-asparaginase with colominic acid and the new characteristics of the modified enzyme]. Sheng Wu Gong Cheng Xue Bao 2000; 16:517-20. [PMID: 11051832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The colominic acid was covalently coupled to L-asparaginase molecule by reductive amination. Depending on the molar ratios of colominic acid-asparaginase (30:1, 50:1 and 100:1), a modified enzyme molecule contained 4.7, 7.2 and 12 colominic acid molecule, they retained 58%, 56% and 33.2% of the initial asparaginase activity, respectively. In comparison with the native enzyme, modified enzyme had lower immunogenicity and antigenicity, longer half-life time (in vitro), more resistance ability to trypsin proteolysis, and similar Km value for L-asparagine.
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Affiliation(s)
- Y D Wang
- Department of Enzymology, Institute of Microbiology, Chinese Academy of Sciences, Beijing
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47
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Dong ZY, Duan YK, Chen HM, Jin C, Zhang SZ. [cDNA cloning, sequence analysis of trehalose-6-phosphate synthase gene from Saccharomyces cerevisiae AS2.1416]. Sheng Wu Gong Cheng Xue Bao 2000; 16:408-10. [PMID: 11059292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
The trehalose-6-phosphate synthase gene tps1 was amplified from yeast S. cerevisiae AS2.1416 cDNA library by polymerase chain reaction. This 1.5 kb fragment was cloned into PstI and BamHI sites of pGEM-T easy vector and the sequence of the gene indicated the cloned tps1 gene contained 1485 nucleotides encoding for 495 amino acid and shared a sequence homology of 99.6% with that from S. cerevisiae S288C.
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Affiliation(s)
- Z Y Dong
- Enzymology Department, Chinese Academy of Sciences, Beijing
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48
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Abstract
The effect of monovalent cation on the activity of the XL-I and XL-III forms of xenobiotic/medium-chain fatty acid:CoA ligase (XM-ligase) was investigated using a variety of different carboxylic acid substrates. With benzoate or p-hydroxybenzoate as substrate, the XL-I ligase was essentially inactive in the absence of monovalent cation. However, with phenylacetic acid and medium-chain fatty acids as substrate, the enzyme retained 3 to 10% activity upon removal of monovalent cation. Further, while Na+ was ineffective with benzoate and p-hydroxybenzoate as substrates, it was effective with other substrates, although still less effective than K+. For XL-III, activity toward benzoate, hydroxybenzoate, and salicylate was insignificant in the absence of monovalent cation, but this rate was 10% of the K(+)-supported rate for hexanoate and 20% for decanoate. Also, with decanoate as substrate, XL-III was activated more by Na+ than by K+. Thus, the nature of the dependence on monovalent cation for activity is substrate-selective. Kinetic analysis of the effect of K+ on the activity of XL-I and XL-III revealed that activation by K+ was not the result of alteration of the affinity of the enzymes for either ATP or the carboxylic acid. For both forms of XM-ligase, K+ was found to enhance the affinity of the enzyme for CoA, regardless of the substrate, although the extent of the enhancement was substrate-specific. In almost all cases there was further activation, even at saturating concentrations of CoA, which indicates an additional effect of monovalent cation on the catalytic rate constant for the reaction. The exception was activation of XL-III activity toward decanoate, which was solely the result of enhanced binding affinity for CoA.
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Affiliation(s)
- D A Vessey
- Department of Veterans' Affairs Medical Center, San Francisco, CA 94121, USA. vessey.donald
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49
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Xiong M, Zhou DR, Jiang SC, Zhang SZ. [Computed tomographic findings of the development of the bone around the vestibular aqueduct in Meniere's disease]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:17-8. [PMID: 12541436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the development of the bone around the vestibular aqueduct (VA) in Meniere's disease (MD) by CT. METHOD The experiment consisted of three groups; normal ear group, non-MD vertigo group and MD group. VA in each group was examined by CT, and the minimum distance between the posterior semicircular canal and the posterior petrous surface where contain the endolymphatic sac. RESULT VA visualization rate in MD was low, P-P distance in MD group was shorter than that of normal ear group and non-MD vertigo group. CONCLUSION It is the fundamental pathological anatomy in MD that VA and the bone around VA are maldeveloped.
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Affiliation(s)
- M Xiong
- Department of Otorhinolaryngology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010
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50
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Wang ZY, Lubin JH, Wang LD, Conrath S, Zhang SZ, Kleinerman R, Shang B, Gao SX, Gao PY, Lei SW, Boice JD. Radon measurements in underground dwellings from two prefectures in China. Health Phys 1996; 70:192-198. [PMID: 8567286 DOI: 10.1097/00004032-199602000-00006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Radon, an established lung carcinogen, remains the single most important environmental radiation exposure. Yet, an excess of lung cancer from breathing radon in homes has not been consistently demonstrated in studies conducted to date. To address several major problems that have hindered previous studies of lung cancer and radon in homes, we have embarked upon a lung cancer case-control study in Gansu Province, China, where a substantial proportion of the population live in underground dwellings. In this paper, we report on results of a pilot study in which radon measurements were made for 3 days in the summer in 40 homes under normal occupancy conditions using short-term E-PERM detectors and for 6 months from February through August in 49 homes using long-term alpha-track detectors. Useable E-PERM data were obtained from 38 homes and useable alpha-track data from 47 homes. For both types of detectors, measurements were approximately log-normally distributed. Arithmetic and geometric means were 233 and 185 Bq m-3 (range 74-1,590 Bq m-3) for E-PERM measurements and 165 and 158 Bq m-3 (range 74-592 Bq m-3) for alpha-track measurements, respectively; 68% of E-PERM measured homes and 55% of alpha-track measured homes exceeded 148 Bq m-3. Alpha-track measurements made at the entry, middle, and rear areas of the underground dwellings did not differ significantly (arithmetic means of 168, 162, and 165 Bq m-3 with standard deviations 63, 73, and 48, respectively), which suggests that air circulation may be minimal. The underground dwellings measured in the pilot study had high radon levels and the underground dwellers may provide an excellent population for studying indoor radon and risk of lung cancer.
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Affiliation(s)
- Z Y Wang
- Laboratory of Industrial Hygiene, Ministry of Public Health, Beijing, China
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