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Wei LM, Yu G, Bao HW, Lu HT, Sheng XH, Zhu YQ. Accuracy of 3.0T magnetic resonance angiography for the detection of arteriovenous fistula dysfunction in hemodialysis patients requiring interventional therapy: a prospective study. Quant Imaging Med Surg 2024; 14:2788-2799. [PMID: 38617180 PMCID: PMC11007513 DOI: 10.21037/qims-23-1505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/31/2023] [Indexed: 04/16/2024]
Abstract
Background Color Doppler ultrasonography (CDUS) is feasible to detect arteriovenous fistula (AVF) dysfunction in hemodialysis patients but is not sufficient to map the structure of fistula required for interventions. This study is designed to evaluate the diagnostic accuracy of three-dimensional time-of-flight magnetic resonance angiography (TOF-MRA) at 3.0T versus CDUS for AVF dysfunction, by using digital subtraction angiography (DSA) as reference. Methods This prospective study enrolled 68 consecutive patients with dysfunctional AVF who underwent both CDUS and TOF-MRA at Shanghai Sixth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine. The analysis of the dysfunctional AVFs was divided into three regions: the feeding artery, fistula and draining veins. In the whole- and per-regional-based analyses, two observers who were blinded to the clinical and DSA results independently analyzed all CDUS and TOF-MRA datasets. The image quality and stenosis severity of the lesions on TOF-MRA were evaluated. A receiver operating characteristic curve was applied to analyze the detection of AVF dysfunction with TOF-MRA. Results A total of 204 vessel regions were evaluated. The whole-region-based image quality of TOF-MRA was poorer in patients with a total occlusion (1.8±0.8) than in those with stenosis (2.7±0.6, P<0.001). In the whole-region analyses, TOF-MRA had higher sensitivity [99.1% (94.6-100.0%) vs. 82.9% (74.6-89.0%), P<0.001] and similar specificity [93.1% (85.0-97.1%) vs. 94.3% (86.5-97.9%), P=0.755] than CDUS. The per-region-based analyses showed that TOF-MRA yielded higher sensitivity [fistula region, 98.1% (88.4-99.9%) vs. 80.8% (67.0-89.9%); P=0.004; draining vein region, 100.0% (92.5-100.0%) vs. 85.0% (72.9-2.5%); P=0.003] and similar specificity [fistula region, 88.2% (62.3-97.8%) vs. 88.2% (62.3-97.9%); P>0.99; draining vein region, 100.0% (59.8-100.0%) vs. 87.5% (46.7-99.3%); P>0.99] than CDUS. Sensitivity and specificity of TOF-MRA were comparable to those of CDUS in feeding artery region. Conclusions TOF-MRA is a feasible and accurate method to display AVF dysfunction in hemodialysis patients, and this method might fulfill the endovascular treatment planning requirements.
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Affiliation(s)
- Li-Ming Wei
- Department of Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gang Yu
- Department of Nephrology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong-Wei Bao
- Department of Radiology, Jinshan Branch of Shanghai Sixth People’s Hospital, Shanghai, China
| | - Hai-Tao Lu
- Department of Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Hua Sheng
- Department of Nephrology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yue-Qi Zhu
- Department of Radiology, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Sun L, Zhu WW, Zhang J, Zhao PC, Zhu YQ, Zhang FX. [Exosomes derived from miR-133a-3p engineered mesenchymal stem cells promote myocardial repair in rats after acute myocardial infarction]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:72-78. [PMID: 38220458 DOI: 10.3760/cma.j.cn112148-20231008-00243] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Objective: To investigate the effects of exosome derived from miR-133a-3p engineered human umbilical cord blood mesenchymal stem cells (ucMSC) on myocardial repair after acute myocardial infarction (AMI) in rats. Methods: UcMSC was amplified and cultured in vitro. Lentiviral carrying miR-133a-3p and negative control vectors were transfected into ucMSC. Exosomes secreted by the transfected ucMSC were named miR-133a-3p-Exo and miR-NC-Exo, respectively. The AMI model of rats was established by ligation of the left anterior descending coronary artery. MiR-133a-3p-Exo or miR-NC-Exo were then injected into the border zone of the infarct area. Cardiac function was assessed by echocardiography after twenty-eight days of intervention, and Masson staining was used to evaluate the area of myocardial fibrosis post-AMI. The myocardial apoptosis after infarction was evaluated by TUNEL staining and the angiogenesis after infarction was evaluated by immunofluorescence staining in the current study. Results: Compared with the miR-NC-Exo group, the left ventricular ejection fraction in the miR-133a-3p-Exo group was significantly increased ((47.4%±9.8%) vs. (64.2%±8.9%), P<0.05). While the myocardial fibrosis area ((31.2%±7.3%) vs. (18.0%±1.5%), P<0.01) and the percentage of apoptotic cardiomyocytes ((25.6%±3.6%) vs. (15.1%±4.4%), P<0.05) was significantly reduced in the miR-133a-Exo group. Besides, the expression of CD31 and α-smooth muscle actin (α-SMA) were also increased significantly in the miR-133a-3p-Exo group compared to the miR-NC-Exo group (CD31: (2.9±0.9) vs. (13.9±2.0), P<0.000 1, α-SMA: (3.5±0.9) vs. (11.0±1.6), P<0.000 1). Conclusion: Exosome derived from miR-133a-3p engineered ucMSC effectively inhibited myocardial apoptosis and promoted angiogenesis, thus improving the cardiac function after myocardial infarction in rats.
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Affiliation(s)
- L Sun
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - W W Zhu
- Department of Cardiology, Xuzhou Central Hospital, Xuzhou Clinical School of Nanjing Medical University, Xuzhou 221000, China
| | - J Zhang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - P C Zhao
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - Y Q Zhu
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - F X Zhang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Wen QR, Zhu YQ, Lyu J, Guo Y, Pei P, Yang L, Du HD, Chen YP, Chen JS, Yu CQ, Chen LM, Li L. [Characteristics of daytime napping and its correlation with chronic diseases in Chinese adults]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1869-1874. [PMID: 36572456 DOI: 10.3760/cma.j.cn112338-20220108-00016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objective: To describe the prevalence of daytime nap habit in participants of the China Kadoorie Biobank (CKB) study, across 10 study regions and explore its correlation with prevalence of major chronic diseases. Methods: Participants with a self-reported pre-diagnosis of any cancer at baseline survey were excluded. Logistic regression models were used to analyze the differences in study regions and age distribution of the prevalence daytime nap habit, and its correlation with the prevalence of diabetes, hypertension, coronary heart disease (CHD), stroke, chronic obstructive pulmonary disease (COPD), and chronic liver diseases. Results: Among 510 145 participants, 39.9% had daytime nap habit in summer and 20.8% had daytime nap habit all the year round. Urban-rural differences were observed in the prevalence of summer nap habit and perennial nap habit. Daytime nap in summer was common in rural areas and Suzhou, with prevalence ranged from 32.9% to 73.3%. Haikou and Liuzhou had higher prevalence of perennial nap (60.4% and 63.3%). The proportion of people with daytime nap habit all the year round increased with age (P for trend <0.001), the proportion was highest in those aged 70- years (31.9%). Daytime nap habit in summer was positively correlated with the prevalence of diabetes, hypertension, CHD and chronic liver disease with OR of 1.10 (95%CI: 1.07-1.14), 1.03 (95%CI:1.02-1.05), 1.07 (95%CI: 1.02-1.12) and 1.07 (95%CI:1.00-1.14), respectively. Daytime nap habit all the year round was positively correlated with the prevalence of diabetes, hypertension, CHD, stroke, COPD and chronic liver disease with OR of 1.33 (95%CI: 1.29-1.37), 1.11 (95%CI: 1.09-1.13), 1.39 (95%CI: 1.33-1.45), 1.33 (95%CI: 1.26-1.41), 1.12 (95%CI: 1.08-1.16) and 1.27 (95%CI:1.18-1.37) respectively. Conclusion: There were regional and age differences in prevalence of daytime nap habit among CKB participants. Daytime nap habit, especially daytime nap habit all the year round, was positively correlated with the prevalence of major chronic diseases.
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Affiliation(s)
- Q R Wen
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Y Q Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - J Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
| | - Y Guo
- Fuwai Hospital, Chinese Academy of Medical Sciences, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - P Pei
- Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
| | - L Yang
- Nuffield Department of Population Health, Center for Clinical and Epidemiological Studies, University of Oxford, Oxford OX3 7LF, UK Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - H D Du
- Nuffield Department of Population Health, Center for Clinical and Epidemiological Studies, University of Oxford, Oxford OX3 7LF, UK Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Y P Chen
- Nuffield Department of Population Health, Center for Clinical and Epidemiological Studies, University of Oxford, Oxford OX3 7LF, UK Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - J S Chen
- China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - C Q Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
| | - L M Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
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Zhu YQ, Fan JN, Yu CQ, Lyu J, Guo Y, Pei P, Xia QM, Du HD, Chen YP, Chen JS, Chen ZM, Li LM. [Correlation between sleep status and frailty in adults aged 30-79 years in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1349-1356. [PMID: 36117338 DOI: 10.3760/cma.j.cn112338-20220110-00018] [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 explore the correlation between sleep status and frailty in adults aged 30-79 years in China, and explore the potential effect modification of general and central obesity. Methods: Based on the baseline data of the China Kadoorie Biobank, we used multinomial logistic regression to analyze the correlation between long and short sleep duration, insomnia disorder, snoring, and unhealthy sleep score with risks of pre-frailty and frailty. Both overall and obesity-stratified analyses were performed. Result: Among the 512 724 participants, 2.3% had frailty and 40.1% had pre-frailty. There was a U-shaped relationship between sleep duration and frailty score. Short (OR=1.21, 95%CI: 1.19-1.23) or long sleep duration (OR=1.19, 95%CI: 1.17-1.21), insomnia disorder (OR=2.09, 95%CI: 2.02-2.17), and snoring (OR=1.61, 95%CI: 1.59-1.63) were all positively correlated with pre-frailty, and dose-response relationships were observed between unhealthy sleep score and pre-frailty (P for trend<0.001), with OR values of 1.46 (1.44-1.48), 1.97 (1.93-2.00) and 3.43 (3.21-3.67) respectively for those having unhealthy sleep score of 1 to 3. These sleep problems were also positively correlated with frailty. Compared with the overweight or obesity group, stronger relationships were observed between short sleep duration and frailty or pre-frailty and between insomnia disorder and pre-frailty, while the relationships between snoring and frailty and pre-frailty were weaker in the participants with normal weight (P for interaction <0.007 for all). We also observed similar effect modification by central obesity. Conclusion: Long or short sleep duration, insomnia disorder, snoring and higher unhealthy sleep scores were positively correlated with pre-frailty or frailty, general and central obesity status could modify the relationships.
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Affiliation(s)
- Y Q Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - J N Fan
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C Q Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
| | - J Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
| | - Y Guo
- Fuwai Hospital, Chinese Academy of Medical Sciences, National Center for Cardiovascular Diseases, Beijing 100037, China
| | - P Pei
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q M Xia
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H D Du
- Medical Research Council Population Health Research Unit at the University of Oxford, Oxford OX3 7LF, UK Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Y P Chen
- Medical Research Council Population Health Research Unit at the University of Oxford, Oxford OX3 7LF, UK Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - J S Chen
- China National Center for Food Safety Risk Assessment, Beijing 100022, China
| | - Z M Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - L M Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
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Wang JJ, Liu SX, Yu DZ, Zhu YQ, Zhang WT, Chen ZN, Yin SK. [Application of internal carotid artery stent in skull base surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:835-842. [PMID: 35866276 DOI: 10.3760/cma.j.cn115330-20210707-00434] [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 report the experience of the application of internal carotid artery stent in skull base surgery, and to clarify the important role of internal carotid artery stent in skull base surgery. Methods: A retrospective study of 22 cases with skull base neoplasms implanted with internal carotid artery stents in the Department of ENT Head and Neck Surgery at the Sixth People's Hospital affiliated with Shanghai Jiao Tong University between July 2019 and January 2021 was conducted. Among them, 17 were male and 5 were female, aged between 33 and 75 years. There were 5 cases on the left, 16 cases on the right, and 1 case on both sides. Of these, there were 4 cases of jugular paraganglioma, 1 case of chondrosarcoma in the jugular foramen, 1 case of carotid body paraganglioma, and 16 cases of nasopharyngeal carcinoma after radiotherapy. Results: The degree of internal carotid artery erosion was assessed by computed tomography angiography (CTA), magnetic resonance imaging and digital subtraction angiography (DSA) images in 22 patients before surgery. It was found that the internal carotid artery was involved to varying degrees in all patients, so internal carotid artery stents were implanted before surgery. Tumor tissue was found to surround the internal carotid artery to varying degrees. Total or subtotal tumor resection was performed in all patients, and no intraoperative and postoperative complications occurred. The postoperative follow-up was 5 months to 2 years, and all patients had no complications such as spontaneous bleeding and pseudo aneurysm. There were no signs of stenosis or occlusion of the internal carotid artery stent segment in all cases. Conclusions: For patients with skull base tumors, preoperative imaging indicates the limited involvement of the internal carotid artery, and internal carotid artery stent implantation before surgery is a safe and effective treatment.
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Affiliation(s)
- J J Wang
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - S X Liu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - D Z Yu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - Y Q Zhu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - W T Zhang
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - Z N Chen
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
| | - S K Yin
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Hearing Test Center, Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai Oriental Institute of Otorhinolaryngology, Shanghai 200233, China
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Wang ZM, Liu Q, Liu YX, Chen YJ, Zhou Q, Deng XL, Zhang XD, Xu BH, Zhu YQ, Gao CZ, Yin L, Xie H, Fei W, Zhou J, Yuan CQ, He XN, Wang X, Chen LL. [Consensus of experts on the oral health management and medical risk prevention for the patients with chronic airway diseases (2022 edition)]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:455-461. [PMID: 35484667 DOI: 10.3760/cma.j.cn112144-20220228-00081] [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: 06/14/2023]
Abstract
Today, there is greater awareness on the association between oral diseases and respiration diseases after the outbreak of COVID-19. However, confusion regarding the oral health management and medical risk prevention for patients with chronic airway diseases has been remained among dental clinicians. Therefore, the dental experts of the Fifth General Dentistry Special Committee, Chinese Stomatological Association, combined with the experts of respiratory and critical care medicine, undertook the formation of consensus on the oral health management of patients with chronic airway diseases in order to help dental clinicians to evaluate medical risks and make better treatment decision in clinical practice. In the present consensus report, the relationship of oral diseases and chronic airway diseases, the oral health management and the treatment recommendations of patients with chronic airway diseases are provided.
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Affiliation(s)
- Z M Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Q Liu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y X Liu
- Department of Respiratory and Critical Care Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - Y J Chen
- Department of General Dentistry & Emergency, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Xi'an 710032, China
| | - Q Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X L Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X D Zhang
- Department of Stomatology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - B H Xu
- Department of Stomatology, China-Japan Friendship Hospital, Beijing 100029, China
| | - Y Q Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - C Z Gao
- Department of Stomatology, Peking University People's Hospital, Beijing 100044, China
| | - L Yin
- Department of Stomatology, The First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
| | - H Xie
- Department of Stomatology, The People's Hospital of Liaoning Province, Shenyang 110016, China
| | - W Fei
- Department of Stomatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - J Zhou
- Department of VIP Dental Service, Capital Medical University School of Stomatology, Beijing 100050, China
| | - C Q Yuan
- Department of Stomatology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - X N He
- Department of Stomatology, The Second Affiliated Hospital of Hainan Medical University, Haikou 570100, China
| | - X Wang
- Department of Stomatology, Peking University Third Hospital, Beijing 100191, China
| | - L L Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Zhang J, Su GH, Zhang XD, Xu K, Wang ZM, Deng XL, Zhu YQ, Chen YJ, Gao CZ, Xie H, Pan X, Yin L, Xu BH, Fei W, Zhou J, Shao D, Zhang ZH, Zhang K, Wang X, Cheng X, Wang X, Chen LL. [Consensus of experts on the medical risk prevention for the patients with cardiovascular diseases during dental treatment (2022 edition)]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:462-473. [PMID: 35484668 DOI: 10.3760/cma.j.cn112144-20220311-00102] [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: 11/11/2022]
Abstract
With the aging process of population in the society, the prevalence of cardiovascular diseases (CVD) in China is increasing continuously and the number of dental patients with CVD is increasing gradually too. Due to the lack of guidelines for dental patients with CVD in our country, how to implement standardized preoperative evaluation and perioperative risk prevention remains a problem to be solved for dentists at present. The present expert consensus was reached by combining the clinical experiences of the expert group of the Fifth General Dentistry Special Committee, Chinese Stomatological Association and respiratory and cardiology experts in diagnosis and treatment for CVD patients, and by systematically summarizing the relevant international guidelines and literature regarding the relationship between CVD and oral diseases and the diagnosis and treatment of dental patients with heart failure, hypertension and antithrombotic therapy. The consensus aims to provide, for the dental clinicians, the criteria on diagnosis and treatment of CVD in dental patients in China so as to reduce the risk and complications, and finally to improve the treatment levels of dental patients with CVD in China.
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Affiliation(s)
- J Zhang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - G H Su
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X D Zhang
- Department of Stomatology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Z M Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China
| | - X L Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Q Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Y J Chen
- Department of General Dentistry & Emergency, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Xi'an 710032, China
| | - C Z Gao
- Department of Stomatology, Peking University People's Hospital, Beijing 100044, China
| | - H Xie
- Department of Stomatology, The People's Hospital of Liaoning Province, Shenyang 110016, China
| | - X Pan
- The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - L Yin
- Department of Stomatology, The First Affiliated Hospital With Nanjing Medical University, Nanjing 210029, China
| | - B H Xu
- Department of Stomatology, China-Japan Friendship Hospital, Beijing 100029, China
| | - W Fei
- Department of Stomatology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu 610072, China
| | - J Zhou
- Department of VIP Dental Service, Capital Medical University School of Stomatology, Beijing 100050, China
| | - D Shao
- Department of Stomatology, Qingdao West Coast New Area Central Hospital, Qingdao 266555, China
| | - Z H Zhang
- Center of Stomatology, The First Affiliated Hospital of USTC (Anhui Provincial Hospital), Hefei 230001, China
| | - K Zhang
- Department of Stomatology, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - X Wang
- Department of Cardiology, Guangdong Province Traditional Chinese Medical Hospital, Guangzhou 510120, China
| | - X Cheng
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - X Wang
- Department of Stomatology, Peking University Third Hospital, Beijing 100191, China
| | - L L Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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Bai XB, Zhou LJ, Lin WZ, Zhu YQ. [Research progress in association of neurological disorders and periodontal diseases]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:529-534. [PMID: 35484677 DOI: 10.3760/cma.j.cn112144-20220312-00103] [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: 06/14/2023]
Abstract
Periodontal diseases are inflammatory diseases caused by oral pathogens around the periodontal supporting tissues, leading to systemic and chronic inflammatory conditions. The continuous chronic systemic inflammation may be a trigger of neuroinflammation, which is the prominent feature of a variety of neurological disorders. It implies that there may be a causal link between periodontal diseases and neurological disorders. This article presents epidemiological and biological evidences that periodontal diseases can induce or exacerbate neurological disorders, including Alzheimer's disease, Parkinson's disease, multiple sclerosis and major depressive disorder, and analyzes the possible mechanisms. The importance of maintaining oral health as well as preventing and treating periodontal diseases are emphasized. At the same time, this may provide novel approaches to study the relationship between periodontal diseases and neurological disorders in the prevention and treatment strategies of neurological disorders.
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Affiliation(s)
- X B Bai
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - L J Zhou
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - W Z Lin
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Y Q Zhu
- Department of General Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & College of Stomatology, Shanghai Jiao Tong University & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
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9
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Wei LM, Zhu YQ, Lu HT, Zhao JG. Thin-slab maximum intensity projection of CT angiography for collateral score and clot burden score evaluation: comparison with conventional CT angiography. Quant Imaging Med Surg 2022; 12:1163-1171. [PMID: 35111613 DOI: 10.21037/qims-21-170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 09/03/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND This study aimed to exam the effects of thin-slab maximum intensity projection (TS-MIP) of computed tomography angiography (CTA) for collateral score (CS) and clot burden score (CBS) evaluation in patients with large-vessel-occlusion (LVO) stroke in the anterior circulation. METHODS Of 241 consecutive patients with LVO stroke admitted to our center between August 2015 and June 2020, 187 patients were enrolled. CS and CBS were evaluated on conventional CTA and TS-MIP separately. Outcome at 90 days was classified as good if modified Rankin scale (mRS) was ≤2 and as poor if mRS was >2. The correlations between CS and CBS and clinical outcomes were assessed. Receiver operating characteristic (ROC) curve analysis was used to determine the diagnostic values of CS and CBS. Multivariate logistic regression analysis was performed to identify the independent predictors of 90-day good clinical outcomes. RESULTS The correlation coefficient for clinical outcomes was significantly better for CS based on TS-MIP than that based on conventional CTA (-0.444 vs. -0.285, P=0.039); no significant difference was found in the CBS evaluation (TS-MIP: -0.356 vs. conventional CTA: -0.320, P=0.348). For predicting good clinical outcomes, TS-MIP-based CS was associated with larger area under the curve (AUC) (0.709 vs. 0.609, P=0.004) and higher sensitivity (69.1% vs. 42.0%, P=0.001) than CS based on CTA. In multivariable logistic regression analysis, the factors independently associated with good outcomes were National Institutes of Health Stroke Scale (NIHSS) score at admission (OR =1.147; P<0.001), TS-MIP-based CS (OR =0.326; P<0.001), final modified treatment in cerebral infarction (mTICI) score of 2b/3 (OR =0.098; P<0.001), and hemorrhagic transformation (OR =3.662; P<0.001). CONCLUSIONS TS-MIP-CTA is superior to conventional CTA for evaluation CS and CBS, and TS-MIP-based CS may be a useful predictor of clinical outcome.
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Affiliation(s)
- Li-Ming Wei
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Qi Zhu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hai-Tao Lu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jun-Gong Zhao
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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10
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Gu Y, Chen L, Zhang Y, Chen M, Li Y, Zhu Y, Lu H, Wei L, Zhang P, Li M, Gu B, You J, Wang W. Reconstructive treatment of symptomatic vertebral artery dissecting aneurysms with Willis covered stent: Initial experience. J Interv Med 2020; 3:184-191. [PMID: 34805932 PMCID: PMC8562248 DOI: 10.1016/j.jimed.2020.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 07/10/2020] [Accepted: 08/03/2020] [Indexed: 11/23/2022] Open
Abstract
Background Symptomatic vertebral artery dissecting aneurysm (VADA) is a challenging disease with controversy on treatment strategy due to anatomic configuration and their nature. Moreover, the outcomes of reconstructive treatment have not been well established. Objective To evaluate the safety and efficacy of reconstructive endovascular treatment (EVT) for symptomatic VADAs with Willis covered stent. Methods We evaluated retrospectively 13 patients with symptomatic VADAs who treated with Willis covered stent, compared with stent-assisted coiling (SAC) on the characteristics, posttreatment course, angiographic and clinical follow-up outcomes at an average of 14.4 months (range, 3–48 months). Results A total of 33 patients with symptomatic VADAs were reviewed, 23 of these patients with ruptured VADAs. The technical successful rate is 100% respectively in Willis covered stent (Group A) and SAC (Group B, n = 20). The initial complete occlusion rate was significant higher in group A (100%) than group B (30%) (p < 0.01). Major procedure-related complications were not significant different in the two groups. Serial follow-up angiograms revealed 5 recurrent VADAs in group B and no recurrence in group A (p > 0.05). No obvious in-stent stenosis and no re-hemorrhage and delayed ischemic symptoms during the follow-up period. The final angiograms of all survived patients demonstrated the complete occlusion rate was higher in group A (100%) than group B (80%), but no significant statistical difference (p > 0.05). Clinical outcomes were favorable in 31 (93.9%), severe disability occurred in one in group B, and only one death in group A. The final clinical outcomes were also not significant difference in the two groups (p > 0.05). Conclusions Our initial result demonstrated reconstructive EVT with Willis covered stent provides a viable approach for selected symptomatic VADAs involving the intracranial and extracranial segments, which is similar to favorable results with SAC. However, an expanded clinical experiences and larger cohort studies are needed.
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Affiliation(s)
- Yi Gu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Li Chen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Yang Zhang
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Mo Chen
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - YongDong Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - YueQi Zhu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - HaiTao Lu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - LiMing Wei
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - PeiLei Zhang
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - MinHua Li
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - BinXian Gu
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
| | - Jin You
- Zhejiang Shin-an International Hospital, 314031, China
- Corresponding author. Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, 600 yishan road, xuhui district, Shanghai, 200233, China.
| | - Wu Wang
- Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, 200233, China
- Corresponding author. Interventional Radiology, Zhejiang Shin-an International Hospital, 314031, China.
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11
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Chen TY, Ge YL, Liu XW, Zhu YQ, Chen ZM, Tian L, Zhu YY, Zhang X, Zhang HZ. [Molecular epidemiological characteristics of methicillin-resistant Staphylococcus aureus during 2017-2018 at a hospital in Shanghai]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:849-853. [PMID: 32842314 DOI: 10.3760/cma.j.cn112150-20190819-00669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To identify the epidemic clones of MRSA isolates at a hospital in shanghai. Methods: A total of 72 MRSA isolates have been isolated from a second grade hospital between 2017 and 2018, including 32 CA-MRSA isolates, 13 HA-MRSA isolates and 26 MRSA isolates from environment. In this study, MLST and PFGE typing methods were used to analyze the molecular epidemiology of the MRSA isolates. Results: A total of 72 MRSA isolates have been obtained including 46 isolates from clinical specimens, 26 isolates from environments. The 46 MRSA isolates from clinical specimens consisted of 33 CA-MRSA (community-acquired MRSA) and 13 HA-MRSA (hospital-acquired MRSA). Furthermore, these patients infected with MRSA isolates were mostly distributed in the department of geriatrics (34.8%, 16/46), internal medicine (26.1%, 12/46) and surgery (26.1%, 12/46). MLST typing results showed that ST764 was predominant in isolates from both clinical specimens and hospital environments. Furthermore, PFGE typing results showed that most ST764 MRSA had high homolog (>90%). Conclusion: ST764 MRSA isolates might spread in community, hospital and environments. Therefore, continuous monitoring of MRSA and its variation may be useful in understanding the involvement of epidemic clone, and in searching new strategies to control MRSA infection.
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Affiliation(s)
- T Y Chen
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y L Ge
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X W Liu
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Q Zhu
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Z M Chen
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - L Tian
- Department of Acute Communicable Disease Control and Prevention, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Y Zhu
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X Zhang
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Z Zhang
- Department of Pathogenic identification, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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12
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Dai Y, Li ZP, Xu H, Zhu L, Zhu YQ, Cheng H, Chen ZB, Huang QZ, Lei L, Li RQ, Li G, Li Y, Liao M, Lu QH, Shi XP, Sun HJ, Shi TL, Wu XX, Wang ZS, Xu J, Zhao G, Zhang GY, Chen C. [A multicenter survey of the accessibility of essential medicines for children in China]. Zhonghua Er Ke Za Zhi 2020; 58:301-307. [PMID: 32234137 DOI: 10.3760/cma.j.cn112140-20190820-00527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the availability, prices and affordability of essential medicines in pediatric population across China, in the hope of improving rational use of medicines. Methods: A multicenter cross-sectional survey of medicine prices, availability and affordability was conducted in 17 provinces, municipalities and autonomous region across east, south-central part, west and north of China. Data on 42 medicines used in pediatric population, both original and generic, were collected in 55 public hospitals from May 26 to June 2, 2017. Availability was expressed as the percentage of hospitals with stock of the target medicine on the day of data collection,and median price ratio (MPR) was the ratio of price upon investigation to international reference. Based on national minimum daily wage, affordability represents the number of working days needed to earn the expense which covers a standard course using the target medicine. Statistical software SPSS 13.0 was applied for descriptive analysis of availability, MPR and affordability. Results: Mean Availability of original and generic medicine was 33% and 32%, with median MPR being 5.43 and 1.55. Among the 19 medicines with price information for both original and generic product, the median MPR was 7.73 and 2.04 respectively. Regarding the five medicines used to treat four common pediatric diseases (pneumonia,peptic ulcer, congenital hypothyroidism, refractory nephrotic syndrome), the affordability was 0.63 (0.16-6.17) d for generic medicine, and 1.03 (0.16-11.53) d for its original counterpart. Conclusions: The availability to both original and generic products of the 42 medicines used in pediatric population was low in China. The prices of generic medicines seem to be lower and affordability higher than those of original medicines. There is an urgent need to improve the availability and affordability of pediatric medicines.
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Affiliation(s)
- Y Dai
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Z P Li
- Department of Pharmacy, Children's Hospital of Fudan University,Shanghai 201102, China
| | - H Xu
- Department of Nephrology, Children's Hospital of Fudan University,Shanghai 201102, China
| | - L Zhu
- Department of Pharmacy, Children's Hospital of Fudan University,Shanghai 201102, China
| | - Y Q Zhu
- Department of Pharmacy, Children's Hospital of Fudan University,Shanghai 201102, China
| | - H Cheng
- Department of Pharmacy, Xi'an Children's Hospital, Xi'an 710003, China
| | - Z B Chen
- Department of Pharmacy, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Q Z Huang
- Department of Pharmacy, Fuzhou Children's Hospital, Fuzhou 350005, China
| | - L Lei
- Department of Pharmacy, Children's Hospital of Urumqi, Urumqi 830000, China
| | - R Q Li
- Department of Pharmacy, Kunming Children's Hospital, Kunming 650228, China
| | - G Li
- Department of Pharmacy, Chengdu Women's and Children's Central Hospital, Chengdu 610091, China
| | - Y Li
- Department of Pharmacy, Qingdao Women and Children's Hospital, Qingdao 266000, China
| | - M Liao
- Department of Pharmacy, Guiyang Maternal and Child Health Hospital, Guiyang 550003, China
| | - Q H Lu
- Department of Pharmacy, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - X P Shi
- Department of Pharmacy, Dalian Children's Hospital,Dalian 116012,China
| | - H J Sun
- Department of Pharmacy, Children's Hospital of Shanghai, Shanghai 200062, China
| | - T L Shi
- Department of Pharmacy, the First Affiliated Hospital of University of Science and Technology of China, Anhui Provincial Hospital, Hefei 230001,China
| | - X X Wu
- Department of Pharmacy, Qilu Children's Hospital of Shandong University, Jinan 250022,China
| | - Z S Wang
- Department of Pharmacy, the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - J Xu
- Department of Pharmacy, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
| | - G Zhao
- Department of Pharmacy, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning 530003, China
| | - G Y Zhang
- Department of Pharmacy, Hebei Children's Hospital, Shijiazhuang 050031, China
| | - C Chen
- Department of Neonatology, Children's Hospital of Fudan University, Shanghai 201102, China
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13
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Zhu YQ, Zhao MY, Gu XC, Teng GJ. [Evaluation of neurovascular function in mouse cortex using multispectral optical imaging after ischemic stroke]. Zhonghua Yi Xue Za Zhi 2019; 99:2943-2946. [PMID: 31607027 DOI: 10.3760/cma.j.issn.0376-2491.2019.37.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To acquire the signal of neuron excitability and blood oxygen in mouse cortex after ischemic stroke, and to clarify the relationship between the change of neurovascular function and the degree of cerebral infarction. Methods: The male C57BL/6 mouse(n=20) about 6-8 weeks and 20 g weight were produced the embolic stroke modal by photochemical injury. The mouse cortex was scanned by the multispectral optical imaging while using electric stimulation in 1, 3 and 7 d after operation. Then several data around the infarction were acquired including neuron excitability, the total hemoglobin concentration and deoxygenated hemoglobin concentration. The ischemic cerebral infarction size was analyzed by TTC staining. Plasma TNF-α concentration was measured by enzyme-linked immunosorbent assay(ELISA). And modified neurological severity score (mNSS) was recorded after ischemic stroke(n=30). Then correlativity analysis was used between the optical signals and three indicators of cerebral infarction degree. Results: The changes of neuron excitability signals were 1.15%±0.28%, 2.84%±1.06%, 2.21%±0.55%. The total hemoglobin concentration signals were 3.71%±2.76%,3.19%±2.70%,4.27%±3.05%. The deoxygenated hemoglobin concentration signals were 2.93%±2.33%, 3.60%±1.74%, 2.08%±1.28%. The neural signal was correlated to cerebral infarction size, plasma TNF-α concentration and mNSS(r=-0.441, -0.449,-0.404, all P<0.05), and mNSS had a great effect on neuron excitability(β=-0.169,P<0.05). Meanwhile, the total hemoglobin concentration was correlated to cerebral infarction size(r=0.440,P<0.05). Conclusion: The signal of neuron and blood oxygen is able to represent the change of neurovascular function and evaluate the progression of ischemic stroke.
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Affiliation(s)
- Y Q Zhu
- Medical School of Southeast University, Jiangsu Key Lab of Molecule Imaging and Functional Imaging, Nanjing 210009, China
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Yang K, Cao J, Yuan TW, Zhu YQ, Zhou B, Cheng YS. Silicone-covered biodegradable magnesium stent for treating benign esophageal stricture in a rabbit model. World J Gastroenterol 2019; 25:3207-3217. [PMID: 31333312 PMCID: PMC6626718 DOI: 10.3748/wjg.v25.i25.3207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 05/14/2019] [Accepted: 06/08/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Stent insertion can effective alleviate the symptoms of benign esophageal strictures (BES). Magnesium alloy stents are a good candidate because of biological safety, but show a poor corrosion resistance and a quick loss of mechanical support in vivo.
AIM To test the therapeutic and adverse effects of a silicone-covered magnesium alloy biodegradable esophageal stent.
METHODS Fifteen rabbits underwent silicone-covered biodegradable magnesium stent insertion into the benign esophageal stricture under fluoroscopic guidance (stent group). The wall reconstruction and tissue reaction of stenotic esophagus in the stent group were compared with those of six esophageal stricture models (control group). Esophagography was performed at 1, 2, and 3 weeks. Four, six, and five rabbits in the stent group and two rabbits in the control groups were euthanized, respectively, at each time point for histological examination.
RESULTS All stent insertions were well tolerated. The esophageal diameters at immediately, 1, 2 and 3 wk were 9.8 ± 0.3 mm, 9.7 ± 0.7 mm, 9.4 ± 0.8 mm, and 9.2 ± 0.5 mm, respectively (vs 4.9 ± 0.3 mm before stent insertion; P < 0.05). Magnesium stents migrated in eight rabbits [one at 1 wk (1/15), three at 2 wk (3/11), and four at 3 wk (4/5)]. Esophageal wall remodeling (thinner epithelial and smooth muscle layers) was found significantly thinner in the stent group than in the control group (P < 0.05). Esophageal injury and collagen deposition following stent insertion were similar and did not differ compared to rabbits with esophageal stricture and normal rabbits (P > 0.05).
CONCLUSION Esophageal silicone-covered biodegradable magnesium stent insertion is feasible for BES without causing severe injury or tissue reaction. Our study suggests that insertion of silicone-covered magnesium esophageal stent is a promising approach for treating BES.
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Affiliation(s)
- Kai Yang
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201306, China
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai Jiao Tong University, Shanghai 201306, China
| | - Jun Cao
- Department of Tumor Intervention, Dahua Hospital, Shanghai 200237, China
| | - Tian-Wen Yuan
- Department of Tumor Intervention, Dahua Hospital, Shanghai 200237, China
| | - Yue-Qi Zhu
- Department of Radiological Intervention, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
| | - Bi Zhou
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201306, China
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai Jiao Tong University, Shanghai 201306, China
| | - Ying-Sheng Cheng
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai University of Medicine & Health Sciences, Shanghai 201306, China
- Department of Radiological Intervention, Shanghai Sixth People's Hospital East Campus Affiliated to Shanghai Jiao Tong University, Shanghai 201306, China
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15
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Wei LM, Zhu YQ, Bao YQ, Lu HT, Zhang PL, Zhao YW, Li M, Zhao JG. Atherosclerosis in intracranial or extracranial vessels in diabetic patients and the association with stroke subtype. Quant Imaging Med Surg 2019; 9:960-967. [PMID: 31367550 DOI: 10.21037/qims.2019.04.17] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 11/06/2022]
Abstract
Background Diabetes mellitus (DM) is associated with increased prevalence and severity of atherosclerosis. This study aimed to assess the prevalence and location of atherosclerosis in intracranial and extracranial vessels in diabetic patients and to investigate their association with ischemic stroke subtype. Methods Diabetes patients (n=128) and nondiabetic patients (n=195) were enrolled. Brain MRI, MR angiography, and digital subtraction angiography (DSA) imaging findings in the two groups were retrospectively compared. The characteristics of atherosclerosis (prevalence, location, severity) and collateral flow in diabetic and nondiabetic patients and their association with stroke subtype were analyzed. Results Atherosclerosis in extracranial vessels was more common in diabetes patients than in nondiabetic patients (43.8% vs. 23.1%; P<0.001). Symptomatic stenoses were commonly in the proximal internal carotid artery (ICA) and proximal vertebral artery (pVA). Diabetes patients were more likely to have lacunar infarction (49.2% vs. 32.3%; P=0.002) and less likely to have large artery infarct (36.7% vs. 48.2%; P=0.042). DM (OR, 2.03; 95% CI, 1.96-4.30; P=0.006) and age >65 years (OR, 2.55; 95% CI, 1.24-5.22; P=0.011) were independent risk factors for lacunar infarct. Diabetes patients with symptomatic extracranial stenosis or occlusion, combined with good collateral circulation, had significantly higher risk of lacunar infarction than nondiabetic patients (47.8% vs. 30.5%; P=0.045). Conclusions DM aggravates the severity of extracranial atherosclerosis. Lacunar stroke is relatively common in diabetic patients and could even be due to large artery disease (LAD).
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Affiliation(s)
- Li-Ming Wei
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yue-Qi Zhu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yu-Qian Bao
- Department of Endocrinology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hai-Tao Lu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Pei-Lei Zhang
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yu-Wu Zhao
- Department of Neurology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Mei Li
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Jun-Gong Zhao
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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Zhu YQ, Ma SP, Dong WG, Zhang JX, Zhang Y. [Correlation between serum interleukin-38 and acute exacerbation of chronic obstructive pulmonary disease with pulmonary embolism]. Zhonghua Yi Xue Za Zhi 2019; 99:929-933. [PMID: 30917443 DOI: 10.3760/cma.j.issn.0376-2491.2019.12.010] [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
Objective: To investigate the correlation between serum interleukin-38 (IL-38) and acute exacerbation of chronic obstructive pulmonary disease (AECOPD) with pulmonary embolism (PE). Methods: The 94 patients with AECOPD admitted to Tianjin Chest Hospital from August 2015 to April 2018 were suspected of PE. They were divided into two groups based on CT pulmonary angiography (CTPA) and color Doppler ultrasound of lower extremity veins: 39 cases in PE group and 55 cases in Non-PE group. The general data and laboratory examination results of these subjects were recorded. Serum IL-38 was measured by double antibody enzyme-linked immunosorbent assays (ELISA). The between-group differences of above parameters were analyzed. Pearson correlation or Spearman rank correlation was used to analyze the association of IL-38 with each variable in AECOPD patients. Binary Logistic regressions were conducted to determine the risk factors of AECOPD with PE. ROC curve was used to assess the value of serum IL-38 in predicting AECOPD with PE. Results: The serum level of IL-38 was lower in PE group than in Non-PE group [46.3 (33.1, 58.1) vs 61.5 (46.6, 72.5) ng/L, P<0.05]. Correlation analysis showed that serum IL-38 levels were negatively correlated with C reactive protein and fibrinogen in patients with AECOPD (r=-0.38,-0.29, all P<0.05). Binary Logistic regressions showed that lower serum IL-38 level was a risk factor of AECOPD with PE (OR=0.78, 95%CI: 0.61-0.94, P<0.05). The area under the ROC curve was 0.74 (95% CI: 0.63-0.84, P<0.05). When cutoff value of serum IL-38 was 52.1ng/L, the sensitivity was 70.9% and the specificity was 69.2% respectively. Conclusion: IL-38 could relieve the hypercoagulability by inhibiting inflammation in patients with AECOPD and could act as a predictor of AECOPD with PE.
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Affiliation(s)
- Y Q Zhu
- Department of Respiratory and Critical Care Medicine, Tianjin Chest Hospital, Tianjin 300222, China
| | - S P Ma
- Department of Respiratory and Critical Care Medicine, Tianjin Chest Hospital, Tianjin 300222, China
| | - W G Dong
- Department of Respiratory and Critical Care Medicine, Tianjin Chest Hospital, Tianjin 300222, China
| | - J X Zhang
- Department of Nutrition, Tianjin Chest Hospital, Tianjin 300222, China
| | - Y Zhang
- Tianjin Cardiovascular Institute, Tianjin 300222, China
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Wei LM, Zhu YQ, Zhang PL, Lu HT, Zhao JG. Evaluation of Quiescent-Interval Single-Shot Magnetic Resonance Angiography in Diabetic Patients With Critical Limb Ischemia Undergoing Digital Subtraction Angiography: Comparison With Contrast-Enhanced Magnetic Resonance Angiography With Calf Compression at 3.0 Tesla. J Endovasc Ther 2018; 26:44-53. [PMID: 30580695 DOI: 10.1177/1526602818817887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
PURPOSE To assess the diagnostic performance of quiescent-interval single-shot magnetic resonance angiography (QISS-MRA) at 3 tesla in diabetic patients with critical limb ischemia (CLI) vs contrast-enhanced MR angiography (CE-MRA) using digital subtraction angiography (DSA) as the standard of reference. METHOD Thirty-seven consecutive diabetic patients (mean age 71.8±7.2 years; 30 men) with CLI (Fontaine stage III-IV) underwent QISS-MRA and CE-MRA with calf compression; DSA was the standard. Image quality (5-point Likert-type scale) and stenosis severity (5-point grading) for QISS-MRA and CE-MRA were evaluated by 2 blinded readers in 1147 and 654 vessel segments, respectively. Per-segment and per-region (pelvis, thigh, calf) sensitivity, specificity, positive predictive value, and negative predictive value were calculated. RESULTS Image quality of QISS-MRA was lower compared with CE-MRA in the pelvic region (p<0.001 in both readers) and thigh region (p=0.033 in reader 1 and p=0.018 in reader 2), whereas in the calf region, the image quality of QISS-MRA was better than CE-MRA (p=0.009 in reader 1 and p=0.001 in reader 2). In segment-based analyses, there was no difference between QISS-MRA and CE-MRA in sensitivity [89.5% vs 90.3% in reader 1 (p=0.774) and 87.6% vs 90.6% in reader 2 (p=0.266)] or specificity [94.2% vs 92.9% in reader 1 (p=0.513) and 92.9% vs 92.9% in reader 2 (p>0.999)]. In region-based analyses, QISS-MRA and CE-MRA yielded similar sensitivity and specificity in all areas but the pelvic region for reader 2 (specificity 95.5% vs 84.8%, p=0.041). CONCLUSION QISS-MRA performed very well in diabetic patients with CLI and was a good alternative for patients with contraindications to CE-MRA.
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Affiliation(s)
- Li-Ming Wei
- 1 Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Qi Zhu
- 1 Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Pei-Lei Zhang
- 1 Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hai-Tao Lu
- 1 Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jun-Gong Zhao
- 1 Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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18
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Zhu YQ, Ma SP, Li B, Zheng CY, Ma J. [Interleukin-38 expression and clinical significance in serum of patients with chronic obstructive pulmonary disease]. Zhonghua Yi Xue Za Zhi 2018; 98:759-762. [PMID: 29562401 DOI: 10.3760/cma.j.issn.0376-2491.2018.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the serum level of interleukin-38 (IL-38) and its clinical significance in patients with chronic obstructive pulmonary disease (COPD). Methods: Totally 72 patients with acute exacerbation of COPD (AECOPD group) and 65 patients with stable COPD (S-COPD group) were recruited from Tianjin Chest Hospital from June 2016 to August 2017. In the same period 40 elderly healthy subjects were selected as control group (C group). The general data and laboratory examination results of these subjects were recorded. Serum IL-38 was measured by double antibody enzyme-linked immunosorbent assays (ELISA). The inter-group differences of above parameters were analyzed. Pearson correlation or Spearman rank correlation analysis was used to analyze the correlation between IL-38 and each variable, and multivariate stepwise regression analysis was used to determine the influencing factors of serum IL-38 in COPD patients. Results: The serum level of IL-38 was higher in AECOPD group than in S-COPD group[(57.88±13.72) vs (51.75±14.06) ng/L, P<0.05], and was higher in either of the two COPD groups than in C group[(46.37±13.18) ng/L](both P<0.05). Correlation analysis of single factor showed that serum IL-38 levels were positively correlated with body mass index (r=0.190, P<0.05), and negatively correlated with C reactive protein (CRP), fibrinogen (FIB), forced expiratory volume in one second as a percentage of estimated value (FEV1%pred) and the number of acute exacerbations in the past 1 year (r=-0.344, -0.176, -0.195, -0.229, all P<0.05). The CRP level and the number of acute exacerbations in the past 1 year were independent factors affecting the serum level of IL-38 (β=-0.204, -0.183, both P<0.05) in patients with COPD. Conclusion: IL-38 is compensatory increased in serum of patients with COPD and may be used as one of the serological markers for evaluation of COPD.
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Affiliation(s)
- Y Q Zhu
- Department of Respiratory and Critical Care Medicine, Tianjin Chest Hospital, Tianjin 300222, China
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Zhu L, Jin F, Zhu YQ, Wang JC, Dong KF, Mo WQ, Song JL, Ouyang J. Giant Magneto-Impedance (GMI) Effect in Single-Layer Soft Magnetic Film Under Stress. J Nanosci Nanotechnol 2018; 18:8195-8200. [PMID: 30189937 DOI: 10.1166/jnn.2018.15799] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The stress-induced magnetic anisotropy can significantly affect giant magneto-impedance (GMI) effect of the soft magnetic film. This paper is devoted to the GMI effect of the single layer soft magnetic film implied without and with a stress. By simulating a physical model with MATLAB and COMSOL software, the impedance expression of the single layer soft magnetic film and the relation between external magnetic field and magnetic permeability are deduced. We observed that, without a stress, the sensitive region increased firstly and then decreased with the increasing of the excitation current frequency from 1 MHz to 200 MHz. While the film was subjected to the stress in the direction of the current with one end stressed, the stress on the film was gradually reduced from stressed end to free end. Also, the impedance change rate of the film changed when the stress was added, which is similar to the effect of adding a bias magnetic field on the film. More importantly, the addition of stress σ can induce the bias of the GMI measurement range and improve its sensitivity near zero magnetic fields. This may provide a new way for designing a GMI sensor with higher sensitivity and adjustable measurement range.
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Affiliation(s)
- L Zhu
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - F Jin
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - Y Q Zhu
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - J C Wang
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - K F Dong
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - W Q Mo
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - J L Song
- School of Automation, China University of Geosciences, Wuhan, 430074, China
| | - J Ouyang
- Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
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20
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Che-Nordin N, Deng M, Griffith JF, Leung JCS, Kwok AWL, Zhu YQ, So RHY, Kwok TCY, Leung PC, Wáng YXJ. Prevalent osteoporotic vertebral fractures more likely involve the upper endplate than the lower endplate and even more so in males. Ann Transl Med 2018; 6:442. [PMID: 30596072 DOI: 10.21037/atm.2018.10.61] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background While the importance of identifying osteoporotic vertebral endplate fracture (EPF) is being recognized; the pathophysiological understanding of EPF till now remain insufficient. In this population-based cross-sectional radiograph study, we aim to investigate the anatomic location characteristics of osteoporotic EPF. Methods This study analyzed the anatomical location of osteoporotic EPFs in elderly Chinese population (age ≥65 years). The T4-L4 radiographs of 1,954 elderly Chinese men (mean: 72.3 years) and 1,953 elderly Chinese women (mean: 72.5 years) were evaluated to identify EPF, and vertebral bodies were graded according to Genant's vertebral deformity criteria. Results Of the 101,582 endplates analyzed, there were 505 EPFs (males: 27.7%; females: 72.3%). Excluding those with both upper endplate and lower endplate involvements, the ratio of upper EPF to lower EPF was 9.63 for males and 4.3 for females (P<0.05). Thoracolumbar junction, particularly L1 (26.4% for males and 24.1% for females) and followed by T12 (20.7% for males and 19.7% for females), had highest prevalence of EPF. With an endplate divided into 5 segments of equal length in the anteroposterior direction and grade 0.5 & 1, grade 2 vertebral deformities analyzed, fractures occurred mostly at the middle segment (70.1% for upper endplates in males and 78.6% for upper endplates in females), followed by second anterior segment (20.9% for upper endplates in males and 14.4% for upper endplates in females). The most anterior and most posterior segments were not primarily involved in EPF. Conclusions Osteoporotic EPFs more likely involve the upper endplate rather than lower endplate, with a trend for this effect to be greater in men than in women. These characteristics may help radiographic differential diagnosis for osteoporotic EPF.
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Affiliation(s)
- Nazmi Che-Nordin
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Min Deng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - James F Griffith
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Jason C S Leung
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Anthony W L Kwok
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Yue-Qi Zhu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Richard H Y So
- Department of Industrial Engineering and Decision Analytics, Hong Kong University of Science and Technology, Clearwater Bay, Hong Kong, China
| | - Timothy C Y Kwok
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China.,Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Ping Chung Leung
- JC Centre for Osteoporosis Care and Control, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
| | - Yì Xiáng J Wáng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, China
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Wei LM, Zhu YQ, Zhang PL, Lu HT, Zhao JG. Integrated application of antegrade and retrograde recanalization for femoral-popliteal artery chronic total occlusions: outcomes compared with antegrade recanalization. Quant Imaging Med Surg 2018; 8:568-578. [PMID: 30140619 DOI: 10.21037/qims.2018.07.02] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 11/06/2022]
Abstract
Background To investigate the efficacy of retrograde recanalization for chronic total occlusion (CTO) of femoral-popliteal artery in patients with peripheral arterial disease. Methods In this single-center retrospective study, all patients who had undergone endovascular recanalization for femoral-popliteal CTOs at our center from June 2011 to October 2014 were included. Patients' demographics, immediate and follow-up outcomes were analyzed. Results A total of 205 patients with 238 CTOs were enrolled. In total, successful recanalization was achieved in 228 CTOs (95.8%). The antegrade procedure was successful in 196 CTOs. The retrograde procedure was successfully performed in 32 CTOs after failed antegrade procedure. Ankle-brachial index increased from 0.48±0.18 to 0.79±0.16 in antegrade group vs. 0.41±0.13 to 0.76±0.13 in retrograde group (P=0.438). Pulse score increased from 0.48±0.50 to 2.30±0.76 in antegrade group vs. 0.48±0.51 to 2.30±0.79 in retrograde group (P=0.771). At 12 and 24 months, primary patency rate was 86.2% (169/196) and 51.5% (101/196) in the antegrade group, and 75.0% (24/32) and 43.8% (14/32) in the retrograde group, respectively (P=0.346). Kaplan-Meier analysis showed limb salvage rates of 85.7% in the antegrade group vs. 78.1% in the retrograde group (P=0.198). Conclusions Retrograde recanalization is effective for CTO of femoral-popliteal artery after the failure of an antegrade procedure; immediate outcomes and mid-term patency and limb salvage rate are comparable with that of antegrade procedure.
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Affiliation(s)
- Li-Ming Wei
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Yue-Qi Zhu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Pei-Lei Zhang
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hai-Tao Lu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Jun-Gong Zhao
- Department of Diagnostic and Interventional Radiology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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Yang K, Zhu YQ, Chen NW, Wang ZG, Cheng YS. Super-Flexible Through-the-Scope Self-Expandable Metallic Stent Insertion for the Management of Malignant Tortuous Hepatic or Splenic Flexure Colonic Obstruction. Chin Med J (Engl) 2018; 131:1381-1384. [PMID: 29786060 PMCID: PMC5987518 DOI: 10.4103/0366-6999.232811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Kai Yang
- Department of Radiology and Medical Imaging, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Yue-Qi Zhu
- Department of Radiology and Medical Imaging, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Ni-Wei Chen
- Department of Gastroenterology, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Zhi-Gang Wang
- Department of Surgery, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, China
| | - Ying-Sheng Cheng
- Department of Radiology and Medical Imaging, Shanghai Jiao Tong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, China
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Zhu YQ, Long Q, Xiao QF, Zhang M, Wei YL, Jiang H, Tang B. [The association between blood pressure variability and sleep stability in essential hypertensive patients with sleep disorder]. Zhonghua Yi Xue Za Zhi 2018; 98:755-758. [PMID: 29562400 DOI: 10.3760/cma.j.issn.0376-2491.2018.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association of blood pressure variability and sleep stability in essential hypertensive patients with sleep disorder by cardiopulmonary coupling. Methods: Performed according to strict inclusion and exclusion criteria, 88 new cases of essential hypertension who came from the international department and the cardiology department of china-japan friendship hospital were enrolled. Sleep stability and 24 h ambulatory blood pressure data were collected by the portable sleep monitor based on cardiopulmonary coupling technique and 24 h ambulatory blood pressure monitor. Analysis the correlation of blood pressure variability and sleep stability. Results: In the nighttime, systolic blood pressure standard deviation, systolic blood pressure variation coefficient, the ratio of the systolic blood pressure minimum to the maximum, diastolic blood pressure standard deviation, diastolic blood pressure variation coefficient were positively correlated with unstable sleep duration (r=0.185, 0.24, 0.237, 0.43, 0.276, P<0.05). Conclusions: Blood pressure variability is associated with sleep stability, especially at night, the longer the unstable sleep duration, the greater the variability in night blood pressure.
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Affiliation(s)
- Y Q Zhu
- Internation Department China-Japan Friendship Hospital, Beijing 100029, China
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Zhou G, Li MH, Lu HT, Deng JS, Zhao YW, Wang YXJ, Zhu YQ. No inferiority of Tonbridge thrombectomy device for acute thrombus retrial compared with Solitaire device: an experimental evaluation with a canine distal external carotid-maxillary artery occlusion model. J Neurointerv Surg 2018; 10:1085-1091. [PMID: 29444961 DOI: 10.1136/neurintsurg-2017-013673] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/22/2018] [Accepted: 02/02/2018] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Mechanical thrombectomy (MT) has been widely accepted as a safe and effective treatment for acute ischemic stroke (AIS). Development of stent retriever devices has been intensively developed over the past two decades. In this study, we compared the effectiveness and safety of a new thrombectomy device with Solitaire FR for the treatment of AIS models. METHODS Mechanical performance of stent retrievers was tested in vitro. Thrombin-induced thrombus was pre-injected into the right distal external carotid-maxillary artery in 18 dogs to create an acute thrombus occlusion model, and these animals were divided into a Tonbridge group (n=9, with Tonbridge stent Tonbridge Medical Technology) and a Solitaire group as control (n=9, with Solitaire stent, ev3 Neurovascular). Final flow restoration, side branches, recanalization time, distal vessel embolism, and device-related complications were recorded and compared. A post-procedure angiogram was obtained at 30 and 90 days after thrombectomy. Device manipulation-related damage to the arterial walls was evaluated histologically. RESULTS In vitro test showed that the maximum friction within the microcatheter was 0.763 for the Tonbridge device and 0.784 n for the Solitaire (P>0.05). Slight increase in radial force was noticed for the Tonbridge (0.035 N/mm vs 0.031 N/mm of Solitaire, P>0.05). Eighteen and 16 retriever attempts were done in the Tonbridge (mean 2.0 attempts) and the Solitaire (mean 1.8 attempts) groups (P=0.74). The Tonbridge device led to good flow restoration in all nine (100%) models compared with eight (88.9%) in the Solitaire group (P=0.30). Side branches' influence (P=0.39), distal thromboembolism (P=0.60), and device-related complications (P=1.00) found no difference between the two groups. The rates of disruption of the internal elastic lamina (IEL) were 8.3% (2/24) and 4.2% (1/24) of the specimens, respectively (P=0.683). TICI 2b/3 flow of the right CCA were similar between the two groups at 1 (6/6 vs 6/6) and 3 months (6/6 vs 6/6) follow-up (P>0.05). CONCLUSION Our preliminary study indicated this new device was technically feasible and effective to be used in thrombectomy for the treatment of acute thrombus occlusion in canine models.
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Affiliation(s)
- Geng Zhou
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ming-Hua Li
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hai-Tao Lu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiang-Shan Deng
- Department of Neurology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yu-Wu Zhao
- Department of Neurology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yi Xiang J Wang
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong
| | - Yue-Qi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Wáng YXJ, Zhang L, Zhao L, He J, Zeng XJ, Liu H, Yang YJ, Ding SW, Xu ZF, He YM, Yang L, Sun L, Mu KJ, Wang BS, Xu XH, Ji ZY, Liu JH, Fang JZ, Hou R, Fan F, Peng GM, Zhu YQ, Ju SH, Poon WS. Elderly population have a decreased aneurysmal subarachnoid hemorrhage incidence rate than Middle aged population: a descriptive analysis of 8,144 cases in mainland China. Br J Neurosurg 2018; 32:165-171. [PMID: 29338437 DOI: 10.1080/02688697.2018.1426724] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yì Xiáng J. Wáng
- Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR
| | - Lihong Zhang
- Hebei Medical University, The Second Affiliated Hospital, Shijiazhuang, Hebei Province, China
| | - Lin Zhao
- Hebei Medical University, The Second Affiliated Hospital, Shijiazhuang, Hebei Province, China
| | - Jian He
- Nanjing University, Nanjing Drum Tower Hospital, Nanjing, Jiangsu Province, China
| | - Xian-Jun Zeng
- Nanchang University, The first Affiliated Hospital, Nanchang, Jiangxi Province, China
| | - Heng Liu
- Zunyi Medical University Hospital, Zunyi, Guizhou Province, China
| | - Yun-Jun Yang
- Wenzhou Medical University, The First Affiliated Hospital, Wenzhou, Zhejiang Province, China
| | - Shang-Wei Ding
- Dongguan People's Hospital, Teaching Hospital of Southern Medical University, Dongguan, Guangdong Province, China
| | - Zhong-Fei Xu
- Taizhou Central People’s Hospital & Teaching Hospital of Taizhou College, Jiaojiang, Zhejiang Province, China
| | - Yong-Ming He
- Soochow University, The First Affiliated Hospital, Suzhou, Jiangsu Province, China
| | - Lin Yang
- North Sichuan Medical College Hospital, Nanchong, Sichuan Province, China
| | - Lan Sun
- The People’s Hospital of Bishan District, Chongqing, China
| | - Ke-Jie Mu
- The People’s Hospital of Bishan District, Chongqing, China
| | - Bai-Song Wang
- Shaoxing Hospital, Teaching Hospital of China Medical University, Keqiao, Zhejiang Province, China
| | - Xiao-Hong Xu
- Guangdong Medical University Hospital, Zhanjiang, Guangdong Province, China
| | - Zhong-You Ji
- Fujian Medical University, Union Hospital, Fuzhou, Fujian Province, China
| | - Jian-Hua Liu
- The first People’s Hospital of Guangzhou City, Guangzhou, Guangdong Province, China
| | - Jin-Zhou Fang
- Hospital of Juhua Group Corporation, Quzhou, Zhejiang Province, China
| | - Rui Hou
- The Central People’s Hospital of Siping City, Siping, Jilin Province, China
| | - Feng Fan
- Zhengzhou University, The First Affiliated Hospital, Zhengzhou, Henan Province, China
| | - Guang-Ming Peng
- The General Hospital of Guangzhou Military Command, Guangzhou, Guangdong Province, China
| | - Yue-Qi Zhu
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Sheng-Hong Ju
- Southeast University, Zhongda Hospital, Nanjing, Jiangsu Province, China
| | - Wai S. Poon
- Division of Neurosurgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR
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Zhu YQ, Liu YH. [A review on group 2 innate lymphoid cells and miR-155 in allergic rhinitis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1940-1943. [PMID: 29798323 DOI: 10.13201/j.issn.1001-1781.2017.24.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Indexed: 11/12/2022]
Abstract
Allergic rhinitis (AR) is the Th2 inflammatory response that atopic individuals exposure to allergens, mediators released by IgE-mediated, and a variety of immunocompetent cells and cytokines involved .Group 2 innate lymphoid cells (ILC2) are a novel population of native lymphocyte, can secrete large amounts of Th2 cytokines to promote the development of allergic diseases after being activated. MiR-155 plays a vital role in the development of the immune system, the differentiation of immune cells, and the maintenance of immune function.Nasal mucosas from the patients with allergic rhinitis show enrichment for ILC2 and miR-155. Highly expressed miR-155 may enhance the level of IL-4 by promoting ILC2 expression, thereby promoting Th2 inflammatory response.This review focuses on the function and meaning of ILC2 and miR-155 in patients with Allergic rhinitis.
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Affiliation(s)
- Y Q Zhu
- Department of Otolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Y H Liu
- Department of Otolaryngology Head and Neck Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
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Gu MH, Su J, Liu CH, Zhu YQ, Shen H, Huang YH, Zhong L, Zhang MH, Li YH. [Epidemiological pattern of abnormal urinary fluoride rates in population with occupational fluoride exposure in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:77-80. [PMID: 28100382 DOI: 10.3760/cma.j.issn.0254-6450.2017.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the epidemiological features of abnormal urinary fluoride rates in population with occupational exposure, and its relationships with age, work years and gender in Shanghai. Methods: A questionnaire survey was conducted respectively in 4 999 exposed workers and 283 non-exposed people during 2012-2015. Their urine samples were collected in plastic bottles and the fluoride ion selective electrode method was used for urinary fluoride level analysis. Logistic regression model was used to estimate associations between the abnormal rates and demographic/socioeconomic status of the study subjects. Results: In the past 4 years, the abnormal urinary fluoride rates (≥1.6 mg/L) in the population with occupational exposure was about 14.38%, it was about 1.43% in the control groups without occupational exposure. Their geometric mean of urinary fluoride content was 0.95 mg/L and 0.46 mg/L, respectively. The incidences of the abnormal rates in those aged ≥50 years and 34-39 years were 19.15% and 22.39%, respectively. The abnormal rate in males was 16.87%, much higher than that in females (6.85%). The abnormal rate had an upward trend along with the increased work years, especially in those with work years of ≥20 years. The abnormal rate was 23.28% in those with work years of ≥20 years and 13.29% in those with work years of <4 years. The relative risk for abnormal urinary fluoride rates was higher in male group, older age group and longer work year group, the odds ratio was 2.28, 1.10 and 1.13, respectively. Conclusions: Serious challenges exist in occupational health supervision. The relevant national standards should be updated as soon as possible. Males, those aged >50 years, and those with longer work years are the risk groups for intervention measures. More efforts are needed, such as strengthening the innovative application of health examination data and the equalization of basic public health service with comprehensive occupational health supervision programs among off-farm workers in the new medical reform.
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Affiliation(s)
- M H Gu
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - J Su
- Department of Social Services and Public Health Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C H Liu
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - Y Q Zhu
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - H Shen
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - Y H Huang
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - L Zhong
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - M H Zhang
- Outpatient Department, Shanghai Institute of Preventive Medicine, Shanghai 200070, China
| | - Y H Li
- Department of Social Services and Public Health Assessment, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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Zhu YQ, Yang K, Edmonds L, Wei LM, Zheng R, Cheng RY, Cui WG, Cheng YS. Silicone-covered biodegradable magnesium-stent insertion in the esophagus: a comparison with plastic stents. Therap Adv Gastroenterol 2017; 10:11-19. [PMID: 28286555 PMCID: PMC5330610 DOI: 10.1177/1756283x16671670] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND We determined the feasibility of, and tissue response to silicone-covered biodegradable magnesium- and plastic-stent insertion into the esophagus in rabbits. METHODS The mechanical compression-recovery characteristics and degradation behaviors of the magnesium stent were investigated in vitro. A total of 45 rabbits were randomly divided into a magnesium- (n = 15) and a plastic- (n = 15) stent group, and underwent stent insertion into the lower third of the esophagus under fluoroscopic guidance; a control group (n = 15) did not undergo the intervention. Esophagography was performed at 1, 2, and 4 weeks. Five rabbits in each group were euthanized at each time point for histological examination. RESULTS Silicone-covered magnesium stents showed similar radial force to plastic stents (p > 0.05). The magnesium stents degraded rapidly in an acidic solution, but 90.2% ± 3.1% of the residual mass was maintained after a 2-week degradation in a solution with a pH of 4.0. All stent insertions were well tolerated. Magnesium stents migrated in six rabbits (one at 1 week, one at 2 weeks and four at 4 weeks), and plastic stents migrated in three rabbits (one at 2 weeks and two at 4 weeks; p > 0.05). Esophageal wall remodeling (thinner epithelial and smooth muscle layers) was similar in both stented groups (p > 0.05), and the esophagus wall was found to be significantly thinner in the stented groups than in the control group (p < 0.05). Esophageal injury and collagen deposition following stent insertion were similar and did not differ from the control group (p > 0.05). CONCLUSIONS Esophageal silicone-covered magnesium stents provided reliable support for at least 2 weeks, with acceptable migration rates and without causing severe injury or tissue reaction compared with plastic stents.
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Affiliation(s)
- Yue-Qi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, China
| | - Kai Yang
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, China
| | - Laura Edmonds
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, China and Nanotechnology Engineering, University of Waterloo, Ontario, Canada
| | - Li-Ming Wei
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, China
| | - Reila Zheng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, China
| | - Ruo-Yu Cheng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, China
| | - Wen-Guo Cui
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, No. 600, Yi Shan Road, Shanghai, 200233, China and Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, No. 708 Renmin Rd, Suzhou, Jiangsu 215006, China
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Song XL, Zhu YQ, Lu HT, Liu F, Wei LM, Kang HK, Zhao JG. Predictors for Better Blood-Flow Restoration of Long-Segmental Below-the-Knee Chronic Total Occlusions after Endovascular Therapy in Diabetic Patients. Korean J Radiol 2016; 17:874-881. [PMID: 27833403 PMCID: PMC5102915 DOI: 10.3348/kjr.2016.17.6.874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 06/26/2016] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To prospectively investigate predictors for good restoration of blood flow of below-the-knee (BTK) chronic total occlusions (CTOs) after endovascular therapy in diabetes mellitus (DM) patients. MATERIALS AND METHODS A total of 120 long-segmental (≥ 5 cm) BTK, CTOs in 81 patients who underwent recanalization were included in this study. After angioplasty, blood-flow restoration was assessed using modified thrombolysis in myocardial ischemia grades and classified as good flow (grade 3) and poor flow (grade 1/2). One hundred and six CTOs with successful recanalization were divided into a good flow group (GFG; n = 68) and poor flow group (PFG; n = 38). Multivariate logistic regression analyses were undertaken to determine independent predictors of blood-flow restoration. Receiver operating characteristic curves were constructed to determine the best cutoff value. The prevalence of target-lesion restenosis during follow-up was compared between two groups. RESULTS Univariate analyses suggested that CTOs in GFG were characterized by lighter limb ischemia (p = 0.03), shorter course of ischemic symptoms (p < 0.01) and lesion length (p = 0.04), more frequent use of intraluminal angioplasty (p = 0.03), and higher runoff score (p < 0.01) than those in PFG. Multivariate regression analyses suggested that distal runoffs (p = 0.001; odds ratio [OR], 10.32; 95% confidence interval [CI]: 4.082-26.071) and lesion length (p < 0.001; OR, 1.26; 95% CI: 1.091-1.449) were independent predictors for good flow restoration. Kaplan-Meier analyses at 12 months showed a higher prevalence of non-restenosis in GFG (p < 0.01). CONCLUSION Distal runoffs and lesion length are independent predictors for good flow restoration for long-segmental BTK, CTOs in DM patients who receive endovascular therapy.
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Affiliation(s)
- Xiao-Li Song
- Department of Radiology, Chonnam National University Medical School, Gwangju 501757, Korea
| | - Yue-Qi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Hai-Tao Lu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Fang Liu
- Department of Endocrinology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Li-Ming Wei
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Heoung Keun Kang
- Department of Radiology, Chonnam National University Medical School, Gwangju 501757, Korea
| | - Jun-Gong Zhao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
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Zhu YQ, Edmonds L, Wei LM, Zheng RL, Cheng RY, Cui WG, Cheng YS. Technical feasibility and tissue reaction after silicone-covered biodegradable magnesium stent insertion in the oesophagus: a primary study in vitro and in vivo. Eur Radiol 2016; 27:2546-2553. [PMID: 27704201 DOI: 10.1007/s00330-016-4602-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Revised: 07/08/2016] [Accepted: 09/07/2016] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Determine the feasibility of and tissue response to biodegradable magnesium-silicone stent insertion into the oesophagus of rabbits. METHODS Mechanical compression-recovery and degradation behaviours of the stents were investigated in vitro. Thirty rabbits were randomly divided into a magnesium-silicone stent group (n = 15) that received stent insertion into the lower 1/3 of the oesophagus under fluoroscopic guidance and a control group (n = 15). Oesophagography was performed at 1, 2 and 4 weeks. Five rabbits in each group were euthanized at each time point for histological examination. RESULTS Magnesium-silicone stents showed good flexibility and elasticity, and degraded more slowly than bare stents at pH 4.0 and 7.4. All stent insertions were well tolerated. The oesophageal diameters at 1, 2 and 4 weeks were 9.7 ± 0.7, 9.6 ± 0.8 and 9.6 ± 0.5 mm, respectively (vs. 9.2 ± 0.8 mm before intervention; P > 0.05). Stent migration occurred in six rabbits (one at 1 week, one at 2 and four at 4). Microscopy demonstrated dilation of the oesophageal wall within 1 week of insertion. Oesophageal injury and collagen deposition following stent insertion were similar to control (P > 0.05). CONCLUSIONS Oesophageal magnesium-silicone stent insertion was feasible and provided reliable support for 2 weeks without causing oesophageal injury or collagen deposition. KEY POINTS • Mg stent provided apparently adequate radial force and silicone membrane reduced magnesium biodegradation • Stent insertion provided good support for at least 2 weeks before biodegradation • Stenting effectively resulted in oesophageal wall remodelling, without demonstrable injury.
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Affiliation(s)
- Yue-Qi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yi Shan Road, Shanghai, 200233, China
| | - Laura Edmonds
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Rd, Suzhou, Jiangsu, 215006, People's Republic of China.,Nanotechnology Engineering, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Li-Ming Wei
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yi Shan Road, Shanghai, 200233, China
| | - Rei-La Zheng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Rd, Suzhou, Jiangsu, 215006, People's Republic of China
| | - Ruo-Yu Cheng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Rd, Suzhou, Jiangsu, 215006, People's Republic of China
| | - Wen-Guo Cui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Rd, Suzhou, Jiangsu, 215006, People's Republic of China.
| | - Ying-Sheng Cheng
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yi Shan Road, Shanghai, 200233, China.
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Ge HF, Liu XQ, Zhu YQ, Chen HQ, Chen GZ. Invasive pulmonary fungal infections in patients with connective tissue disease: a retrospective study from northern China. Braz J Med Biol Res 2016; 49:e5531. [PMID: 27683823 PMCID: PMC5044799 DOI: 10.1590/1414-431x20165531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2016] [Accepted: 07/25/2016] [Indexed: 11/21/2022] Open
Abstract
Invasive pulmonary fungal infection (IPFI) is a potentially fatal complication in patients with connective tissue disease (CTD). The current study aimed to uncover the clinical characteristics and risk factors of patients with IPFI-CTD. The files of 2186 CTD patients admitted to a single center in northern China between January 2011 and December 2013 were retrospectively reviewed. A total of 47 CTD patients with IPFI were enrolled into this study and assigned to the CTD-IPFI group, while 47 uninfected CTD patients were assigned to the control group. Clinical manifestations were recorded, and risk factors of IPFI were calculated by stepwise logistical regression analysis. Forty-seven (2.15%) CTD patients developed IPFI. Systemic lupus erythematosus patients were responsible for the highest proportion (36.17%) of cases with IPFI. Candida albicans (72.3%) accounted for the most common fungal species. CTD-IPFI patients had significantly elevated white blood cell count, erythrocyte sedimentation rate, C-reactive protein and fasting glucose values compared to controls (P<0.05). Cough, sputum and blood in phlegm were the most common symptoms. Risk factors of IPFI in CTD included maximum prednisone dose ≥30 mg/day within 3 months prior to infection, anti-microbial drug therapy, and interstitial pneumonia. CTD patients who have underlying interstitial pneumonia, prior prednisone or multiple antibiotics, were more likely to develop IPFI.
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Affiliation(s)
- H F Ge
- Department of Dermatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong, China
| | - X Q Liu
- Department of Dermatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong, China
| | - Y Q Zhu
- Laboratory Department, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong, China
| | - H Q Chen
- Department of Dermatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong, China
| | - G Z Chen
- Department of Dermatology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong, China
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32
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Zhu YQ, Long Q, Wang C, Shuai XJ, Chen B, Kong J, Wei YL. [Relationship between sleep architecture and blood pressure dynamic change in patients with sleep apnea syndrome]. Zhonghua Yi Xue Za Zhi 2016; 96:2220-3. [PMID: 27480652 DOI: 10.3760/cma.j.issn.0376-2491.2016.28.004] [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 investigate sleep architecture and blood pressure dynamic change in patients with Sleep apnea syndrome by electrocardiogram-based cardiopulmonary coupling analysis system. METHODS Seventy-nine sleep disorder participants (PSQI≥8) were enrolled. Electrocardiogram-based cardiopulmonary coupling analysis device and ambulatory blood pressure monitoring were synchronously used to evaluate sleep architecture and blood pressure circadian rhythm. The patients were divided into SAS group (47 participants) and non-SAS group (32 participants) according to the Apnea Hypopnea Index (AHI) that calculated by CPC device. The data of sleep architecture and blood pressure variability were compared between two groups. RESULTS Compared with non-SAS group, SAS group have less proportion of deep sleep, more proportion of light sleep, higher mean blood pressure in 24 hours and daytime, lower nocturnal blood pressure dipping, faster mean heart rate in night time (P<0.05). AHI has moderate inverse correlation with deep sleep time, wake/dream time (-0.6≤r<-0.3), moderate positive correlation with light sleep time (0.3<r≤0.6), high inverse correlation with nocturnal blood pressure dipping (r=-0.785, P=0.000), moderate positive correlation with mean diastolic blood pressure (r=0.425, P=0.019). CONCLUSION Our study shows that less proportion of deep sleep, more proportion of light sleep, 24 hours mean blood pressure and nocturnal blood pressure increase in the patients with Sleep Apnea Syndrome. The severity of Sleep Apnea Syndrome has a positive correlation with the severity of abnormal sleep architecture and the degree of blood pressure elevation.
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Affiliation(s)
- Y Q Zhu
- Internation Medical Center, China-Japan Friendship Hospital, Beijing 100029, China
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Zhu YQ, Dai DY, Xing HX, Ding YH, Kadirvel R, Kallmes DF. Concomitant aneurysm detection in an intracranial dolichoectasia mouse model using a MicroFil polymer perfusion technique. J Neurointerv Surg 2016; 9:783-786. [PMID: 27382123 DOI: 10.1136/neurintsurg-2016-012469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 06/14/2016] [Accepted: 06/16/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To assess the feasibility of using MicroFil polymer perfusion to detect concomitant saccular aneurysms in an intracranial arterial dolichoectasia (IADE) model in mice, and to report detailed histomorphometric features of these aneurysms. MATERIALS AND METHODS IADE models were created in C57/BL6 mice via microsurgical injection of 25 mU elastase into the cisterna magna. The cerebral vasculature was perfused with MicroFil polymer and harvested at 1, 3, and 7 days, and 2 and 4 weeks (n=8 for each group). IADE was defined by a tortuosity index >10 combined with a 25% increase in diameter of the A1 segment of the anterior cerebral artery (ACA), internal carotid artery (ICA), or basilar artery compared with the baseline of controls, which received heat-inactivated elastase. Saccular aneurysm occurrence rate, location, and morphological parameters were investigated using macroscopic and microscopic analysis. RESULTS IADE was present in 95% (36/38) of the subjects, with a mortality rate of 5% (2/40). Fifteen concomitant saccular aneurysms were detected in 8 (21%) of the 38 surviving mice, including 6 at the posterior communicating artery, 1 along the ACA, 2 along the anterior communicating artery complex, 3 along the ICA, and 3 along the middle cerebral artery. Rupture was confirmed in two aneurysms. Histological examination indicated that the aneurysms develop via arterial-wall remodelling, which is characterized by internal elastic lamina disruptions and muscular layer discontinuity in the media. CONCLUSIONS The proportion of subjects developing saccular aneurysms in addition to IADE in our mouse model is similar to the 15% of patients with IADE who have concomitant saccular aneurysms.
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Affiliation(s)
- Yue-Qi Zhu
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Da-Ying Dai
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Hai-Xia Xing
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.,Department of Pathology, Shanghai East Hospital, Medical School of Shanghai Tongji University, Shanghai, China
| | - Yong-Hong Ding
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | | | - David F Kallmes
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
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Zhou G, Li M, Zhu Y, Zhao J, Lu H. Cerebral Venous Sinus Thrombosis Involving the Straight Sinus May Result in Infarction and/or Hemorrhage. Eur Neurol 2016; 75:257-62. [DOI: 10.1159/000446649] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/29/2016] [Indexed: 11/19/2022]
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Abstract
The purpose of this study was to evaluate the clinical efficacy of initial periodontal therapy in gingival pregnancy tumors. Thirty-nine patients diagnosed with gingival tumors of pregnancy between 2007 and 2015 were enrolled in this study. The patients received initial periodontal therapy, then supportive periodontal therapies at 3- to 6-month intervals. The patients underwent follow up for 6 months to 8 years after treatment. After plaque control, supragingival scaling, and root planning, the tumors in 25 patients were gradually eliminated without the necessity of surgery. In 3 patients, tumors <5 mm in size disappeared in a mean time of 3.6 months, 4 patients with tumors 5-10 mm disappeared in a time of 7.5 months, 11 patients with tumors 10-15 mm disappeared in 10.2 months, 6 patients with tumors 15-20 mm disappeared in 15 months, and one patient with a tumor >20 mm disappeared in 20 months. No recurrence of gingival pregnancy tumors was noted during subsequent follow-up. Initial periodontal therapy combined with oral hygiene maintenance is efficacious in treating gingival pregnancy tumors of patients with normal hormone levels, which can potentially serve as an option to avoid surgery.
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Affiliation(s)
- Y Q Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei Province, China.,Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei Province, China.,The Affiliated Huizhou Stomatologic Hospital of Jinan University & Huizhou Stomatologic Hospital, Huizhou, Guangdong Province, China
| | - Y Q Wang
- The Affiliated Huizhou Stomatologic Hospital of Jinan University & Huizhou Stomatologic Hospital, Huizhou, Guangdong Province, China
| | - Y C Tang
- The Affiliated Huizhou Stomatologic Hospital of Jinan University & Huizhou Stomatologic Hospital, Huizhou, Guangdong Province, China
| | - C Z Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei Province, China.,Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei Province, China
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Yan L, Shi WY, Wang D, Zhu YQ, Tan HQ, Li MH. Application of the Willis covered stent using the telescopic technique for the treatment of fusiform aneurysm in a canine model. Neurol India 2016; 61:45-50. [PMID: 23466839 DOI: 10.4103/0028-3886.107937] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The covered stent is one of the most promising tools for the treatment of intracranial fusiform aneurysms. We developed an in vivo model of fusiform aneurysms and evaluated the effectiveness of double telescoping Willis covered stents for their treatment. MATERIALS AND METHODS An external jugular vein graft was anastomosed with the common carotid artery (CCA) to construct the fusiform aneurysm model. After at least 4 weeks, two Willis covered stents were implanted in a telescopic fashion. Angiography follow-up was performed at 2 weeks and 1 and 3 months to examine the grafts. The animals were sacrificed at 1 or 3 months of the follow-up period, and the stents were examined histologically. RESULTS A total of eight fusiform aneurysms in four canines were created and 16 covered stents were implanted successfully. No technical or device-related difficulties occurred. The angiographic follow-up results showed that six fusiform aneurysms were completely occluded, and a minimal endoleak occurred in two fusiform aneurysms. Histological examination revealed endothelial progress and all aneurysm sacs were filled with thrombi. CONCLUSION Vein graft anastomosis with CCA to construct a model of fusiform aneurysm may reproduce the clinical conditions. This study demonstrated that the implantation of two Willis covered stents in a telescoping fashion is an effective way to treat an experimental model of fusiform aneurysm.
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Affiliation(s)
- Lei Yan
- Institute of Diagnostic and Interventional Radiology, The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University, Shanghai, China
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Rouchaud A, Brinjikji W, Ding YH, Dai D, Zhu YQ, Cloft HJ, Kallmes DF, Kadirvel R. Evaluation of the Angiographic Grading Scale in Aneurysms Treated with the WEB Device in 80 Rabbits: Correlation with Histologic Evaluation. AJNR Am J Neuroradiol 2016; 37:324-9. [PMID: 26405081 DOI: 10.3174/ajnr.a4527] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 05/26/2015] [Accepted: 07/14/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The WEB Occlusion Score has been proposed to assess angiographic outcomes for intracranial aneurysms treated with the Woven EndoBridge (WEB) device. Using a large series of experimental aneurysms treated with the WEB, we had the following objectives: 1) to compare angiographic outcomes as measured by the WEB Occlusion Scale with histologic results, and 2) to assess interobserver and intraobserver agreement of the WEB Occlusion Scale. MATERIALS AND METHODS Intracranial aneurysms were created in 80 rabbits and treated with WEB devices. Animals were sacrificed at last follow-up for histologic evaluation. DSA was performed just after the deployment of the device and at follow-up. Four investigators independently and retrospectively graded the DSA twice according to the WEB Occlusion Scale. One histopathologist blinded to the angiographic results graded the occlusion according to a 4-point scale patterned on the WEB Occlusion Scale. Intra- and interobserver agreement were evaluated for DSA. Follow-up angiographic grading and histologic reference were compared to determine the WEB Occlusion Scale accuracy for complete (with or without recess filling) versus incomplete occlusion and adequate (complete occlusion or neck remnant) versus inadequate occlusion. RESULTS Inter- and intraobserver weighted κ for the angiographic WEB Occlusion Scale were, respectively, 0.76 and 0.76, indicating substantial agreement. The sensitivity and specificity of the WEB Occlusion Scale for complete occlusion at follow-up compared with the histologic reference standard were, respectively, 75% and 83.3%, with an overall accuracy of 80%. Similarly, for adequate occlusion at follow-up, sensitivity was 97.7%, specificity was 64.9%, and overall accuracy was 82.5%. CONCLUSIONS The WEB Occlusion Scale appears to be consistent, reliable, and accurate compared with a histologic reference standard.
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Affiliation(s)
- A Rouchaud
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota the Department of Radiology (A.R., W.B., H.J.C., D.F.K.), Mayo Clinic, Rochester, Minnesota.
| | - W Brinjikji
- the Department of Radiology (A.R., W.B., H.J.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
| | - Y-H Ding
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota
| | - D Dai
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Y Q Zhu
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota
| | - H J Cloft
- the Department of Radiology (A.R., W.B., H.J.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
| | - D F Kallmes
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota the Department of Radiology (A.R., W.B., H.J.C., D.F.K.), Mayo Clinic, Rochester, Minnesota
| | - R Kadirvel
- From the Neuroradiology Research Laboratory (A.R., Y.-H.D., D.D., Y.Q.Z., D.F.K., R.K.), Mayo Clinic College of Medicine, Rochester, Minnesota
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Zhu YQ, Chen BL, Bi ZW, Kou ZQ, Hu B, Fang M, Bi ZQ. [Meta-analysis on epidemiology of iatrogenic-borne methicillin-resistant Staphylococcus aureus]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:273-280. [PMID: 26917530 DOI: 10.3760/cma.j.issn.0254-6450.2016.02.025] [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: 06/05/2023]
Abstract
OBJECTIVE To study the molecular-biologic characteristics and epidemiological status of iatrogenic related Community-acquired methicillin-resistant Staphylococcus (S.) aureus (CA-MRSA) in China through Meta-analysis. METHODS Data through systematic searching for peer-reviewed articles published before December 3(rd), 2015 from 4 main electronic databases including China National Knowledge Infrastructure (CNKI), Wanfang Data, PubMed and Web of Science Core Collection was collected, for this Meta-analysis. PRISMA guidelines were followed and the proportion of MRSA, CA-MRSA, hospital-acquired MRSA (HA-MRSA) and panton-valentine leucocidin (PVL) gene in certain populations were quantitatively analyzed by Stata 13.0 software. RESULTS Average proportion of CA-MRSA from S. aureus was 12% (95%CI: 8%-16%). CA-MRSA in MRSA was 18% (95%CI: 12%-24%). 42.1% (95%CI: 20.4%-63.7%) of the CA-MRSA carried a PVL gene, and the number was higher than general MRSA (t=-2.99,P=0.011). CONCLUSION CA-MRSA was in lower proportion than HA-MRSA, both seen in general MRSA and in S. aureus, but under higher proportion of carrying the PVL gene. Transmission of CA-MRSA could be prevented within the general population through conducting effective surveillances and preventive programs.
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Affiliation(s)
- Y Q Zhu
- Department of Epidemiology and Biostatistics, Shandong University, Jinan 250012, China
| | - B L Chen
- Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - Z W Bi
- Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - Z Q Kou
- Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - B Hu
- Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - M Fang
- Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
| | - Z Q Bi
- Shandong Key Laboratory of Infectious Disease Prevention and Control, Institute of Preventive Medicine, Shandong University Jinan 250012, China; Department of Epidemiology and Biostatistics, Shandong University, Jinan 250012, China; Institute of Bacterial Infections Disease Control, Shandong Provincial Center for Disease Control and Prevention, Jinan 250014, China
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Zhou G, Su M, Zhu YQ, Li MH. Efficacy of Flow-Diverting Devices for Cerebral Aneurysms: A Systematic Review and Meta-analysis. World Neurosurg 2016; 85:252-62. [DOI: 10.1016/j.wneu.2015.09.088] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 09/26/2015] [Accepted: 09/26/2015] [Indexed: 11/30/2022]
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Zhou G, Zhu YQ, Su M, Gao KD, Li MH. Flow-Diverting Devices versus Coil Embolization for Intracranial Aneurysms: A Systematic Literature Review and Meta-analysis. World Neurosurg 2015; 88:640-645. [PMID: 26585732 DOI: 10.1016/j.wneu.2015.11.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To review the literature on flow-diverting device (FDD) treatments for intracranial aneurysms (IAs) and to compare the safety and efficacy of FDDs with coil embolization treatment (CET) for IAs using a meta-analysis of published studies. METHODS A systematic electronic search was conducted of PubMed, Springer Link, EBSCO, and the Cochrane Database on all accessible published articles through September 2015. Abstracts, full-text manuscripts, and the reference lists of retrieved articles were analyzed. Studies that explicitly compared FDD and CET approaches to the treatment of IAs were included. Odds ratios (ORs) and 95% CIs were calculated for the complete occlusion rate and the morbidity rate using a random-effects model. RESULTS Nine studies were included in the analysis, containing retrospectively collected data for 863 patients. FDD treatment showed a significantly higher complete occlusion rate than CET (OR = 3.13; 95% confidence interval [CI], 2.11-4.65) and the subgroup of stent-assisted coiling did (OR = 2.08; 95% CI, 1.34-3.24). FDDs did not achieve a significantly lower overall morbidity rate compared with CET (OR = 0.87; 95% CI, 0.45-1.69) or the SAC (stent-assisted coiling) subgroup (OR = 0.86; 95% CI, 0.33-2.26), and our results did not show a significant difference in mortality between the two techniques. CONCLUSIONS FDD treatment of IAs yielded satisfactory results in complete occlusion rate compared with CET. The FDD procedure is feasible and has no significant difference in morbidity risk. Despite the findings reported herein, further validation with well-designed, multicenter randomized controlled trials is needed.
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Affiliation(s)
- Geng Zhou
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yue-Qi Zhu
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ming Su
- Shandong Academy Of Chinese Medicine, Lixia, Jinan, China
| | - Kai-Di Gao
- School of Nursing, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Ming-Hua Li
- Department of Diagnostic and Interventional Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.
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Li W, Qiao X, Li M, Zheng Q, Ren Q, Zhu YQ, Peng HX. Self-Assemblies of Acicular Hollow Fe/C Nanostructures. J Nanosci Nanotechnol 2015; 15:5845-5850. [PMID: 26369160 DOI: 10.1166/jnn.2015.9089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Self-assemblies of acicular hollow Fe/C structures were synthesized using D-glucose monohydrate and ferric chloride as precursors by a simple hydrothermal process followed by carbonization at 800 °C. The self-assembled structures with an overall diameter of 15~20 µm composed of radially formed hollow needles from a central core with an average diameter of ca. 1 µm and a length up to 10 µm. The end of the needles was revealed to be a awl shape with a hollow structure formed during the self-assembly process and the subsequent heat treatment. The hollow structure was probably caused by the Kirkendall effect at 800 °C. The materials exhibit ferromagnetic characteristic with saturation magnetization (Ms), remanent magnetization (Mr), and coercivity (Hc) of 22.2 emu/g, 3 emu/g, and 151.22 Oe, respectively, with Ms much lower than that of Fe3O4.
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Cao J, Lu HT, Wei LM, Zhao JG, Zhu YQ. Rendezvous technique for recanalization of long-segmental chronic total occlusion above the knee following unsuccessful standard angioplasty. Vascular 2015; 24:157-65. [PMID: 26002783 DOI: 10.1177/1708538115589049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose To assess the technical feasibility and efficacy of the rendezvous technique, a type of subintimal retrograde wiring, for the treatment of long-segmental chronic total occlusions above the knee following unsuccessful standard angioplasty. Methods The rendezvous technique was attempted in eight limbs of eight patients with chronic total occlusions above the knee after standard angioplasty failed. The clinical symptoms and ankle-brachial index were compared before and after the procedure. At follow-up, pain relief, wound healing, limb salvage, and the presence of restenosis of the target vessels were evaluated. Results The rendezvous technique was performed successfully in seven patients (87.5%) and failed in one patient (12.5%). Foot pain improved in all seven patients who underwent successful treatment, with ankle-brachial indexes improving from 0.23 ± 0.13 before to 0.71 ± 0.09 after the procedure ( P < 0.001). At the end of the follow-up period, the visual analogue scale improved from 6.86 ± 1.57 to 1.57 ± 1.27 ( P < 0.001). Non-healing ulcers in three patients either healed (n = 2) or improved (n = 1). No major amputation was necessary. Kaplan–Meier analyses revealed that stenosis-free rate was 83.3% at six months and 41.7% at 12 months. Conclusion The rendezvous technique is a feasible and effective treatment for chronic total occlusions above the knee when standard angioplasty fails.
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Affiliation(s)
- Jun Cao
- Department of Interventional Oncology, Dahua Hospital, Xuhui District, Shanghai, China
| | - Hai-Tao Lu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Li-Ming Wei
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jun-Gong Zhao
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Yue-Qi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
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Fang C, Liu CS, Xiao YP, Zhao M, Zhang JM, Li MH, Zhu YQ. Using a covered stent for large cerebral aneurysms treated with stent-assisted coiling. Interv Neuroradiol 2015; 21:317-24. [PMID: 25972387 DOI: 10.1177/1591019915581993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 11/17/2022] Open
Abstract
PURPOSE The purpose of this article is to evaluate the efficacy and safety of covered stent implantation for large intracranial aneurysms treated with stent-assisted coiling. MATERIALS AND METHODS Seven patients with a cerebral aneurysm were selected for this study. The aneurysms were located at the cavernous segment of the internal carotid artery in three cases, the supraclinoid segment in two and the vertebrobasilar junction in one. Aneurysm diameter was 10-25 mm. Mass effect symptoms occurred in six patients, epistaxis in one and subarachnoid hemorrhage in one. All patients underwent endovascular reconstruction with stent-assisted coiling and a covered stent. Five had undergone conventional endovascular embolization with stent-assisted coiling three to six months previously; the covered stent was then navigated through the existing stent and deployed to cover the aneurysm neck. In two cases, the covered stent was deployed after stent-assisted coiling in a single procedure. RESULTS Angiography showed that all aneurysms were excluded from the circulation and parent arteries were preserved. No technical adverse events occurred. At the one- to two-year follow-up, complete resolution of clinical symptom had occurred in six patients and partial resolution in one. No recurrent aneurysm filling and no hemodynamic stenosis was observed. CONCLUSION Endovascular reconstruction combining a covered stent with stent-assisted coiling could be an effective and safe strategy for the treatment of large cerebral aneurysms.
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Affiliation(s)
- Chun Fang
- Department of Neurosurgery, the Second Affiliated Hospital, Medical School of Zhe Jiang University, China Department of Neuro-Interventional Radiology, Shanghai East Hospital, Medical School of Tong Ji University, China
| | - Chuan-Sen Liu
- Department of Neuro-Interventional Radiology, Shanghai East Hospital, Medical School of Tong Ji University, China
| | - Ya-Ping Xiao
- Department of Neuro-Interventional Radiology, Shanghai East Hospital, Medical School of Tong Ji University, China
| | - Mei Zhao
- Department of Neuro-Interventional Radiology, Shanghai East Hospital, Medical School of Tong Ji University, China
| | - Jian-Min Zhang
- Department of Neurosurgery, the Second Affiliated Hospital, Medical School of Zhe Jiang University, China
| | - Ming-Hua Li
- The Sixth Affiliated People's Hospital, Medical School of Shanghai Jiao Tong University, China
| | - Yue-Qi Zhu
- The Sixth Affiliated People's Hospital, Medical School of Shanghai Jiao Tong University, China
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Wang L, Zhu YQ, Cheng YS, Cui WG, Chen NW. Temporary placement of a paclitaxel or rapamycin-eluting stent is effective to reduce stenting induced inflammatory reaction and scaring in benign cardia stricture models. Turk J Gastroenterol 2015; 25 Suppl 1:69-74. [PMID: 25910372 DOI: 10.5152/tjg.2014.6611] [Citation(s) in RCA: 2] [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: 11/22/2022]
Abstract
BACKGROUND/AIMS To investigate whether temporary placement of a paclitaxel or rapamycin eluting stent is more effective to reduce stenting induced inflammatory reaction and scaring than a bared stent in benign cardia stricture models. MATERIALS AND METHODS Eighty dog models of stricture were randomly divided into a control group (CG, n=20, no stent insertion), a bare stent group (BSG, n=20), a paclitaxel eluting (Pacl-ESG, n=20) and a rapamycin eluting stent group (Rapa-ESG, n=20), with one-week stent retention. Lower-oesophageal-sphincter pressure (LOSP), 5-minute barium height (5-mBH) and cardia diameter were assessed before, immediately after the procedure, and regularly for 6 months. Five dogs in each group were euthanized for histological examination at each follow-up assessment. RESULTS Stent insertion was well tolerated, with similar migration rates in three groups. At 6 months, LOSP and 5-mBH improved in Pacl-ESG and Rapa-ESG compared to BSG (p<0.05), with no difference between Pacl-ESG and Rapa-ESG (p>0.05). Cardia kept more patency in the Pacl-ESG and Rapa-ESG than in BSG (p<0.05). Reduced peak inflammatory reactions and scarring occurred in the Pacl-ESG and Rapa-ESG compared to BSG (p<0.05), with a similar outcome in the Pacl-ESG and Rapa-ESG (p>0.05). CONCLUSION Paclitaxel or rapamycin-eluting stents insertion led to better outcomes than bare stents in benign cardia stricture models.
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Affiliation(s)
- Lin Wang
- Department of Radiology, The Tenth Affiliated People's Hospital, Shanghai Tong Ji University Faculty of Medicine, Shanghai, China; Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital600 Yi Shan Road, Shanghai, China.
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Zhu YQ, Wang J, Tan HQ, Lu HT, Liu F, Cheng YS, Wei LM, Zhang PL, Zhao JG. Runoff Detected by Magnetic Resonance Angiography as an Indicator for Better Recanalization Outcomes in Below-the-Knee Chronic Total Occlusions in Diabetic Patients. J Endovasc Ther 2015; 22:243-51. [PMID: 25809370 DOI: 10.1177/1526602815573229] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose: To compare the feasibility and efficacy of recanalizing below-the-knee (BTK) chronic total occlusions (CTOs) between patients with good or poor distal runoff based on magnetic resonance angiography (MRA) scans. Methods: Two hundred long-segment BTK CTOs in 171 limbs of 113 diabetic patients (58 men; mean age 69.8±1.9 years) were divided into good distal runoff (GDR: 119 lesions, 98 limbs) or poor distal runoff groups (PDR: 81 lesions, 73 limbs) based on baseline MRA findings. After angioplasty, modified thrombolysis in myocardial ischemia (mTIMI) grades and ankle-brachial index (ABI) were used to assess immediate outcomes. Regularly scheduled duplex or MRA imaging was performed in follow-up. The restenosis and limb salvage rates were compared. Results: The success rates were 93.3% and 87.7% in the GDR and PDR groups, respectively (p=0.21); subintimal angioplasty was more common in the PDR group (93.0% vs. 63.1%, p<0.01). Completion angiography indicated an mTIMI grade 3 blood flow in 71.2% lesions in the GDR patients and in 52.1% in the PDR (p=0.01) group. Improvement in the ABI was greater in the GDR limbs (p<0.001 vs. PDR). Mean imaging follow-up was 10.8±6.9 months in the GDR group and 11.1±6.6 months in the PDR group. Kaplan-Meier analysis showed a better restenosis-free rate in the GDR group (80.6% vs. 61.7%; p=0.02) at 12 months and for lesions with mTIMI grade 3 flow (p<0.01). At 24 months, Kaplan-Meier analysis revealed a better limb salvage rate in the GDR group (84.2% vs. 54.6%; p=0.02). Conclusion: Distal runoff detected using MRA could be a predictor for successful intraluminal recanalization, better distal tissue perfusion, improved long-term patency, and better limb salvage for patients with BTK CTOs.
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Affiliation(s)
- Yue-Qi Zhu
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jue Wang
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Hua-Qiao Tan
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Hai-Tao Lu
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Fang Liu
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Ying-Sheng Cheng
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Li-Ming Wei
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Pei-Lei Zhang
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Jun-Gong Zhao
- Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
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Wei LM, Zhu YQ, Zhao JG, Wang J, Lu HT, Zhang PL. Retrograde transplantar arch angioplasty of below-the-knee arterial occlusions: outcomes compared to anterograde recanalization. Acad Radiol 2014; 21:1475-82. [PMID: 25088835 DOI: 10.1016/j.acra.2014.05.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Revised: 05/22/2014] [Accepted: 05/27/2014] [Indexed: 10/25/2022]
Abstract
RATIONALE AND OBJECTIVES To compare the clinical outcomes of retrograde transplantar arch angioplasty and conventional below-the-knee (BTK) anterograde recanalization. MATERIALS AND METHODS One hundred twelve limbs in 96 patients underwent attempt at antegrade tibial angioplasty. Among 27 technical failures, retrograde trans-dorsal or -planter percutaneous transluminal angioplasty was attempted in 22 limbs. Ankle-brachial index (ABI), thrombolysis in myocardial infarction (TIMI) flow grade, and dorsal/plantar arterial pulse score improvement were compared immediately after the procedures between patients received successful anterograde angioplasty (anterograde angioplasty group [AAG], 85 limbs in 71 patients) and retrograde angioplasty (retrograde angioplasty group [RAG], 22 limbs in 20 patients). Target vessel restenosis and limb salvage were observed during follow-up. RESULTS Primary technical success rate was 75.9% in the RAG (vs. 74.0% AAG, P > .05). ABI improved from 0.55 ± 0.21 to 0.93 ± 0.19 in the RAG (vs. 0.56 ± 0.14 to 0.89 ± 0.18 AAG, P > .05). TIMI flow grade demonstrated greater reperfusion of distal foot tissue in the RAG (2.3 ± 0.8 vs. 1.0 ± 0.8, P < .05). Primary patency rates at 12 and 24 months were 63.6% (14 of 22) and 45.5% (10 of 22) in the RAG and 52.9% (45 of 85) and 37.6% (32 of 85) in the AAG, respectively (P > .05). Kaplan-Meier analysis after 24 months found limb salvage rates of 93.8% in the RAG and 96.5% in the AAG (P > .05). CONCLUSIONS Retrograde transplantar arch angioplasty achieved better immediate blood flow and similar ABI improvement, primary patency rate, and limb salvage rate compared to conventional transtibial angioplasty for BTK occlusions. This could become a supplementary technique when anterograde angioplasty fails.
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Abstract
Owing to their prokaryotic origin, plastid rRNAs are mainly 23s/16s/5s rRNAs. We present a novel plant RNA isolation method in this paper. Also, not only the eukaryotic 28s (26s, 25s)/18s rRNAs but the prokaryotic 26s/23s rRNAs as well were demonstrated in a single sample for the first time by formaldehyde denaturing agarose gel electrophoresis.
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Affiliation(s)
- Y Q Zhu
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Y Zheng
- School of Life Sciences, Tsinghua University, Beijing, China
| | - H B Chen
- School of Life Sciences, Tsinghua University, Beijing, China
| | - L Q Huang
- School of Life Sciences, Tsinghua University, Beijing, China
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Abstract
We conducted a hospital-based case-control study to investigate the associations of dietary intake of folate and MTHFR C677T and A1298C polymorphisms with breast cancer in a Chinese population. A 1:1-matched case-control study was conducted. Two hundred and thirty patients who were newly diagnosed and histologically confirmed breast cancer and 230 controls were enrolled from Xinxiang Central Hospital. Folate intake was calculated by standard portion size and relative size for each food item in the questionnaire. Genotyping of MTHFR C677T and A1298C was performed by PCR-RFLP. MTHFR 677TT (OR = 2.26, 95%CI = 1.09-4.87, P = 0.02) and T allele (OR = 1.40, 95%CI = 1.03-1.90, P = 0.03) had an increased risk of laryngeal cancer when compared with the CC genotype. We found any interaction between MTHFR C677T and folate intake (P for interaction = 0.02). In conclusion, our study demonstrated that MTHFR C677T polymorphism and folate are associated with risk of breast cancer.
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Affiliation(s)
- Z G Wang
- Medical Image Center, Xinxiang Central Hospital, Xinxiang, China
| | - W Cui
- Special-Needed Hospital Ward, Xinxiang Central Hospital, Xinxiang, China
| | - L F Yang
- Special-Needed Hospital Ward, Xinxiang Central Hospital, Xinxiang, China
| | - Y Q Zhu
- Health Check Centre, Xinxiang Central Hospital, Xinxiang, China
| | - W H Wei
- Special-Needed Hospital Ward, Xinxiang Central Hospital, Xinxiang, China
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Zhu YQ, Wu WJ, Xiao HW, Chen HB, Zheng Y, Zhang YJ, Wang HX, Huang LQ. A generic plant RNA isolation method suitable for RNA-Seq and suppression subtractive hybridization. Genet Mol Res 2013; 12:5537-46. [PMID: 24301924 DOI: 10.4238/2013.november.18.4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A recently developed revolutionary approach to transcriptomics, RNA-Seq, and suppression subtractive hybridization are powerful tools for gene expression research. However, currently, the difficulty of isolating high-quality RNAs from plant tissues bearing abundant complex polysaccharides, polyphenolics, and secondary metabolites is a serious problem that not only limits the application of these technologies but also hinders studies dealing with RNA in general. We have developed a consistent protocol to prepare highly intact and pure RNAs from tissues of a variety of field-grown plant species, with high yields, in 2 to 3 h. Additionally, this method can be readily applied to mammalian, yeast, and bacterial cells.
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Affiliation(s)
- Y Q Zhu
- School of Life Sciences, Tsinghua University, Beijing, China
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Le WJ, Zhu YQ, Li MH, Yan L, Tan HQ, Xiao SM, Cheng YS. New method for retrospective study of hemodynamic changes before and after aneurysm formation in patients with ruptured or unruptured aneurysms. BMC Neurol 2013; 13:166. [PMID: 24195732 PMCID: PMC4228259 DOI: 10.1186/1471-2377-13-166] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Accepted: 10/28/2013] [Indexed: 11/25/2022] Open
Abstract
Background Prospective observation of hemodynamic changes before and after formation of brain aneurysms is often difficult. We used a vessel surface repair method to carry out a retrospective hemodynamic study before and after aneurysm formation in a ruptured aneurysm of the posterior communicating artery (RPcomAA) and an unruptured aneurysm of the posterior communicating artery (URPcomAA). Methods Arterial geometries obtained from three-dimensional digital subtraction angiography of cerebral angiograms were used for flow simulation by employing finite-volume modeling. Hemodynamic parameters such as wall shear stress (WSS), blood-flow velocity, streamlines, pressure, and wall shear stress gradient (WSSG) in the aneurysm sac and at the site of aneurysm formation were analyzed in each model. Results At “aneurysm” status, hemodynamic analyses at the neck, body, and dome of the aneurysm revealed the distal aneurysm neck to be subjected to the highest WSS and blood-flow velocity, whereas the aneurysm dome presented the lowest WSS and blood-flow velocity in both model types. More apparent changes in WSSG at the aneurysm dome with an inflow jet and narrowed impaction zone were revealed only in the RPcomAA. At “pre-aneurysm” status, hemodynamic analyses in both models showed that the region of aneurysm formation was subjected to extremely elevated WSS, WSSG, and blood-flow velocity. Conclusions These data suggest that hemodynamic analyses in patients with ruptured or unruptured aneurysms using the vessel surface repair method are feasible, economical, and simple. Our preliminary results indicated that the arterial wall was subjected to elevated WSS, WSSG and blood-flow velocity before aneurysm generation. However, more complicated flow patterns (often with an inflow jet or narrowed impaction zone) were more likely to be observed in ruptured aneurysm.
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Affiliation(s)
| | - Yue-Qi Zhu
- Department of Radiology, The Sixth Affiliated People's Hospital, Medical School of Shanghai Jiao Tong University, No, 600, Yi Shan Road, Shanghai 200233, China.
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