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Lv X, Liu X, Peng Y, Li W, Wang J, Chen X, Lei J, Tang C, Luo S, Mai W, Cai Y, Fan Q, Liu C, Zhang L. Medium-intensity statin with ezetimibe versus high-intensity statin in acute ischemic cerebrovascular disease (MESIA): A randomized clinical trial. J Stroke Cerebrovasc Dis 2024; 33:107647. [PMID: 38431112 DOI: 10.1016/j.jstrokecerebrovasdis.2024.107647] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/12/2024] [Accepted: 02/21/2024] [Indexed: 03/05/2024] Open
Abstract
BACKGROUND High-risk stroke patients are recommended to receive high-intensity statin therapy to reduce the risk of stroke recurrence. However, doubling the dosage of statin drugs did not increase the achievement rate of LDL-C target or provide additional clinical benefits, but significantly increased the risk of adverse reactions. Statins and ezetimibe work through different mechanisms and the combined use of statins and ezetimibe significantly improves outcomes with comparable safety profiles. We tested the hypothesis that moderate-intensity statin with ezetimibe may offer advantages over the conventional high-intensity statin regimen in terms of efficacy and safety. METHODS We conducted a randomized controlled trial. Eligible participants were aged 18 years or older with acute ischemic cerebrovascular disease. We randomly assigned (1:1) participants within the acute phase of ischemic stroke, i.e., within 1 week after the onset of mild ischemic stroke (NIHSS score ≤ 5), within 1 month for severe cases (NIHSS score ≥ 16), and within 2 weeks for the rest, as well as patients with TIA within 1 week of symptom onset, to receive either moderate-intensity statin with ezetimibe (either 10-20 mg atorvastatin calcium tablets plus a 10 mg ezetimibe tablet, or 5-10 mg rosuvastatin calcium tablets once per day plus a 10 mg ezetimibe tablet once per day) or high-intensity statin (40 mg atorvastatin calcium tablets or 20 mg rosuvastatin calcium tablets once per day) for 3 months. Randomization was performed using a random number table method. The primary efficacy outcome was the level and achievement rate of LDL-C after 3 months of treatment, specifically LDL-C ≤ 1.8 mmol/L or a reduction in LDL-C ≥ 50 %. The secondary outcome was the incidence of new stroke or transient ischemic attack (TIA) within 3 months. The safety outcome was liver and renal function tests, and the occurrence of statin-related muscle events within 3 months. FINDINGS This trial took place between March 15, 2022, and March 7, 2023. Among 382 patients screened, 150 patients were randomly assigned to receive either medium-intensity statins with ezetimibe (n = 75) or high-intensity statins (n = 75). Median age was 60.0 years (IQR 52.75-70.25); 49 (36.6 %) were women and 85 (63.4 %) were men. The target achievement of LDL-C at 3 months occurred in 62 (89.86 %) of 69 patients in the medium-intensity statin with ezetimibe group and 46 (70.77 %) of 65 patients in the high-intensity statin group (P=0.005, OR=0.273, 95 % CI: 0.106, 0.705). The reduction magnitude of LDL-C in moderate-intensity statin with ezetimibe group was significantly higher (-56.540 % vs -47.995 %, P=0.001). Moderate-intensity statin with ezetimibe group showing a trend of a greater reduction in LDL-C absolute value than high-intensity statin group but without statistical significance (-1.77±0.90 vs -1.50±0.89, P=0.077). New AIS or TIA within 3 months, liver and renal function tests, and the occurrence of statin-related muscle events within 3 months were also statistically insignificant. Multivariate logistic regression analysis showed that both gender and lipid-lowering regimen as independent risk factors influencing the rate of LDL-C achievement in individuals diagnosed with acute ischemic cerebrovascular disease, but only lipid-lowering regimen had predictive value. INTERPRETATION Compared to guideline-recommended high-intensity statin therapy, moderate-intensity statin with ezetimibe further improved the achievement rate of LDL-C in patients with acute ischemic cerebrovascular disease, with a higher reduction magnitude in LDL-C. In terms of safety, there was no significant difference between the two regimens, suggesting that moderate-intensity statin with ezetimibe can also be considered as an initial treatment option for patients with acute ischemic cerebrovascular disease.
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Affiliation(s)
- Xuxian Lv
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Xudong Liu
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Yanfang Peng
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Wenbin Li
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Jianing Wang
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Xiaofeng Chen
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Junjie Lei
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Chaogang Tang
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Shijian Luo
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Weihua Mai
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Yiming Cai
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Qian Fan
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Chenhao Liu
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China
| | - Lei Zhang
- The Fifth Affiliated Hospital, Department of Cerebrovascular Disease, Sun Yat-Sen University, China.
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Liu X, Lv X, Peng Y, Wang J, Lei J, Tang C, Luo S, Mai W, Cai Y, Fan Q, Liu C, Zhang L. Clopidogrel with indobufen or aspirin in minor ischemic stroke or high-risk transient ischemic attack: a randomized controlled clinical study. BMC Neurol 2024; 24:81. [PMID: 38429754 PMCID: PMC10905919 DOI: 10.1186/s12883-024-03585-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Ischemic stroke and transient ischemic attack (TIA) are the most prevalent cerebrovascular diseases. The conventional antiplatelet drugs are associated with an inherent bleeding risk, while indobufen is a new antiplatelet drug and has the similar mechanism of antiplatelet aggregation as aspirin with more safety profile. However, there have been no studies evaluating the combination therapy of indobufen and clopidogrel for antiplatelet therapy in cerebrovascular diseases. OBJECTIVE The CARMIA study aims to investigate the effectiveness and safety of a new dual antiplatelet therapy consisting of indobufen and clopidogrel comparing with the conventional dual antiplatelet therapy consisting of aspirin and clopidogrel in patients with minor ischemic stroke or high-risk TIA. METHODS An open-label randomized controlled clinical trial was conducted at a clinical center. We randomly assigned patients who had experienced a minor stroke or transient ischemic attack (TIA) within 72 h of onset, or within 1 month if they had intracranial stenosis (IS), to receive either indobufen 100 mg twice daily or aspirin 100 mg once daily for 21 days. For patients with IS, the treatment duration was extended to 3 months. All patients received a loading dose of 300 mg clopidogrel orally on the first day, followed by 75 mg once daily from the second day to 1 year. We collected prospective data using paper-based case report forms, and followed up on enrolled patients was conducted to assess the incidence of recurrent ischemic stroke or TIA, mRS score, NIHSS (National Institutes of Health Stroke Scale) score, and any bleeding events occurring within 3 month after onset. RESULTS We enrolled 202 patients diagnosed with ischemic stroke or transient ischemic attack. After applying the criteria, 182 patients were eligible for data analysis. Endpoint events (recurrence of ischemic stroke/TIA, myocardial infarction, or death) were observed in 6 patients (6.5%) receiving aspirin and clopidogrel, including 4 (4.3%) with stroke recurrence, 1 (1.1%) with TIA recurrence, and 1 (1%) with death. In contrast, no endpoint events were reported in the indobufen and clopidogrel group (P = 0.029). The group of patients receiving indobufen and clopidogrel exhibited significantly lower modified Rankin Scale (mRS) score. (scores range from 0 to 6, with higher scores indicating more severe disability) compared to the aspirin and clopidogrel group (common odds ratio 3.629, 95% CI 1.874-7.036, P < 0.0001). Although the improvement rate of NIHSS score in the indobufen and clopidogrel group was higher than that in the aspirin and clopidogrel group, the difference was not statistically significant (P > 0.05). Bleeding events were observed in 8 patients (8.6%) receiving aspirin and clopidogrel, including 4 (4.3%) with skin bleeding, 2 (2.2%) with gingival bleeding, 1 (1.1%) with gastrointestinal bleeding, and 1 (1.1%) with urinary system bleeding. On the other hand, only 1 patient (1.1%) in the indobufen and clopidogrel group experienced skin bleeding (P = 0.035). CONCLUSION The combination of indobufen and clopidogrel has shown non-inferior and potentially superior effectiveness and safety compared to aspirin combined with clopidogrel in patients with minor ischemic stroke and high-risk TIA in the CARMIA study (registered under chictr.org.cn with registration number ChiCTR2100043087 in 01/02/2021).
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Affiliation(s)
- Xudong Liu
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Xuxian Lv
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Yanfang Peng
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Jianing Wang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Junjie Lei
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Chaogang Tang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Shijian Luo
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Weihua Mai
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Yiming Cai
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Qian Fan
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Chenhao Liu
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China
| | - Lei Zhang
- The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihua East Road, Zhuhai City, Guangdong Province, China.
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Silvestre Sombrio M, Mai W, Buch D, Costa Grotti G, Gabriela Luciani M, Rodrigues Froes T. Accuracy and reliability of tele-ultrasonography in detecting gastrointestinal obstruction in dogs and cats. J Small Anim Pract 2023; 64:367-374. [PMID: 36973863 DOI: 10.1111/jsap.13604] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 12/19/2022] [Accepted: 02/08/2023] [Indexed: 03/29/2023]
Abstract
OBJECTIVES To assess the accuracy and interobserver agreement of tele-ultrasonography for the diagnosis of gastrointestinal obstruction in small animals by radiologists with different levels of experience. MATERIALS AND METHODS A retrospective cross-sectional study including dogs and cats admitted with gastrointestinal signs, between 2017 and 2019, that had abdominal ultrasonographic (US) examination performed and images saved for review. Patients were classified into two categories based on final diagnosis: animals with or without complete or partial gastrointestinal obstruction. Observers with four experience levels interpreted the archived ultrasound examinations, simulating a tele-ultrasonography consultation. Analyses of accuracy, sensitivity, specificity, positive and negative predictive values were obtained for each observer for detection of gastrointestinal obstruction. Agreement between observers for the gastrointestinal obstruction diagnosis was assessed using Fleiss's Kappa statistics. RESULTS Ninety patients with gastrointestinal signs were included. Of these, 23 of 90 had partial or complete gastrointestinal obstruction. Interpretation of the images by observers via tele-ultrasonography showed intervals of accuracy, sensitivity, specificity, positive and negative predictive values, respectively, of 78.9% to 87.8%, 73.9% to 100%, 77.6% to 89.6%, 55.9% to 70.8% and 90.9% to 100% for diagnosis of gastrointestinal obstruction. Agreement for the gastrointestinal obstruction diagnosis across all reviewers was moderate (Kappa 0.6). CLINICAL SIGNIFICANCE Tele-ultrasonography had good accuracy for detection of gastrointestinal obstruction, however had a rather low positive predictive value and only moderate interobserver agreement. Therefore, this technique should be used with caution in this clinical context, given the potential surgical decision at hand.
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Affiliation(s)
- M Silvestre Sombrio
- Veterinary Medicine Department, Paraná Federal University, Curitiba, Brazil
- UniRadio, São Paulo, Brazil
| | - W Mai
- Department of Clinical Sciences and Advanced Medicine, Section of Radiology, School of Veterinary Medicine of the University of Pennsylvania, Philadelphia, USA
| | - D Buch
- Veterinary Medicine Department, Paraná Federal University, Curitiba, Brazil
| | | | | | - T Rodrigues Froes
- Veterinary Medicine Department, Paraná Federal University, Curitiba, Brazil
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Mai W, Wei A, Lin X, Wang F, Ye J, Chen P. Efficacy and safety of traditional Chinese medicine injection with mecobalamin in treating diabetic peripheral neuropathy: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e23702. [PMID: 33429738 PMCID: PMC7793311 DOI: 10.1097/md.0000000000023702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Diabetic peripheral neuropathy is a common complication of diabetes and the main cause of disability. At present, there is no specific therapeutic regimen. Mecobalamin is often used as a neurotrophic drug, and its long-term effects are not satisfactory when used alone. Clinical practice indicates that traditional Chinese medicine injection with mecobalamin has a therapeutic advantage in treating diabetic peripheral neuropathy while it lacks evidence-based medicine. In this scheme, the efficacy and safety of traditional Chinese medicine injection with mecobalamin in treating diabetic peripheral neuropathy has been studied. METHODS Computers were used to search the English database (PubMed, the Cochrane Library, Embase, Web of Science), and Chinese database (CNKI, Wanfang, CBMDISC, VIP). Besides, manual searching was conducted to search for Baidu Scholar, CHICTR, Google Scholar. During the establishment of the database to November 2020, a randomized controlled trial on traditional Chinese medicine injection with mecobalamin in treating diabetic peripheral neuropathy was conducted. There were 2 researchers independently conducting data extraction and quality evaluation of literature on the included studies, RevMan5.3 was performed for meta-analysis on the included literature. RESULTS In this study, the efficacy and safety of traditional Chinese medicine injection with mecobalamin in treating diabetic peripheral neuropathy was evaluated by the total effective rate, motor nerve conduction velocity, sensory nerve conduction velocity, adverse reactions, and glucose metabolism level. CONCLUSION This study can provide an evidence-based basis on the clinical applications of traditional Chinese medicine injection with mecobalamin in the treatment of diabetic peripheral neuropathy. ETHICS AND DISSEMINATION The study does not involve patient privacy or rights and does not require approval from an ethics committee. The results may be published in peer-reviewed journals or disseminated at relevant conferences. OSF REGISTRATION NUMBER DOI 10.17605/OSF.IO/KPW5E.
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Affiliation(s)
- Weihua Mai
- Department of Endocrinology, Foshan Hospital of Traditional Chinese Medicine
| | - Aisheng Wei
- Department of Endocrinology, Foshan Hospital of Traditional Chinese Medicine
| | - Xiaoxuan Lin
- Department of Medicine, Zhangcha Hospital, Foshan, Guangdong Province, China
| | - Funeng Wang
- Department of Endocrinology, Foshan Hospital of Traditional Chinese Medicine
| | - Jianhong Ye
- Department of Endocrinology, Foshan Hospital of Traditional Chinese Medicine
| | - Ping Chen
- Department of Endocrinology, Foshan Hospital of Traditional Chinese Medicine
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5
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Zhang XF, Chen J, Wang PG, Luo SM, Liu NX, Li XM, He XL, Wang Y, Bi XG, Zhang P, Wang Y, Lv ZC, Zhou B, Mai W, Wu H, Hu Y, Wang DR, Luo FW, Xia LG, Lai JJ, Zhang DM, Wang Q, Han G, Wu XW, Ren JA. [Surgical site infection after abdominal surgery in China: a multicenter cross-sectional study]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1036-1042. [PMID: 33212551 DOI: 10.3760/cma.j.cn.441530-20200810-00470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: Surgical site infection (SSI) can markedly prolong postoperative hospital stay, aggravate the burden on patients and society, even endanger the life of patients. This study aims to investigate the national incidence of SSI following abdominal surgery and to analyze the related risk factors in order to provide reference for the control and prevention of SSI following abdominal surgery. Methods: A multicenter cross-sectional study was conducted. Clinical data of all the adult patients undergoing abdominal surgery in 68 hospitals across the country from June 1 to 30, 2020 were collected, including demographic characteristics, clinical parameters during the perioperative period, and the results of microbial culture of infected incisions. The primary outcome was the incidence of SSI within postoperative 30 days, and the secondary outcomes were ICU stay, postoperative hospital stay, cost of hospitalization and the mortality within postoperative 30-day. Multivariable logistic regression was used to analyze risk factors of SSI after abdominal surgery. Results: A total of 5560 patients undergoing abdominal surgery were included, and 163 cases (2.9%) developed SSI after surgery, including 98 cases (60.1%) with organ/space infections, 19 cases (11.7%) with deep incisional infections, and 46 cases (28.2%) with superficial incisional infections. The results from microbial culture showed that Escherichia coli was the main pathogen of SSI. Multivariate analysis revealed hypertension (OR=1.792, 95% CI: 1.194-2.687, P=0.005), small intestine as surgical site (OR=6.911, 95% CI: 1.846-25.878, P=0.004), surgical duration (OR=1.002, 95% CI: 1.001-1.003, P<0.001), and surgical incision grade (contaminated incision: OR=3.212, 95% CI: 1.495-6.903, P=0.003; Infection incision: OR=11.562, 95%CI: 3.777-35.391, P<0.001) were risk factors for SSI, while laparoscopic or robotic surgery (OR=0.564, 95%CI: 0.376-0.846, P=0.006) and increased preoperative albumin level (OR=0.920, 95%CI: 0.888-0.952, P<0.001) were protective factors for SSI. In addition, as compared to non-SSI patients, the SSI patients had significantly higher rate of ICU stay [26.4% (43/163) vs. 9.5% (514/5397), χ(2)=54.999, P<0.001] and mortality within postoperative 30-day [1.84% (3/163) vs.0.01% (5/5397), χ(2)=33.642, P<0.001], longer ICU stay (median: 0 vs. 0, U=518 414, P<0.001), postoperative hospital stay (median: 17 days vs. 7 days, U=656 386, P<0.001), and total duration of hospitalization (median: 25 days vs. 12 days, U=648 129, P<0.001), and higher hospitalization costs (median: 71 000 yuan vs. 39 000 yuan, U=557 966, P<0.001). Conclusions: The incidence of SSI after abdominal surgery is 2.9%. In order to reduce the incidence of postoperative SSI, hypoproteinemia should be corrected before surgery, laparoscopic or robotic surgery should be selected when feasible, and the operating time should be minimized. More attentions should be paid and nursing should be strengthened for those patients with hypertension, small bowel surgery and seriously contaminated incision during the perioperative period.
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Affiliation(s)
- X F Zhang
- Research Institute of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu 210002, China
| | - J Chen
- Research Institute of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu 210002, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - S M Luo
- Department of Comprehensive Surgery, the People's Hospital of Xinjiang Uygur autonomous region, Urumqi, Xinjiang 830001, China
| | - N X Liu
- Department of Pancreatitis Center, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - X M Li
- Department of General Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450007, China
| | - X L He
- Department of General Surgery, the Second Affiliated Hospital of the Air Force Medical University, Xi'an, Shanxi 710038, China
| | - Y Wang
- Department of General Surgery, Yichang Central People's Hospital, the First College of Clinical Medical Science of Three Gorges University, Yichang, Hubei 443003, China
| | - X G Bi
- Department of Gastrointestinal and pancreatic Surgery, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - P Zhang
- Department of Hepatobiliary Surgery, the First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Y Wang
- Department of General Surgery, the Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230601, China
| | - Z C Lv
- Department of General Surgery, Yantai Yuhuangding Hospital, Yantai, Shandong 264000, China
| | - B Zhou
- Department of General Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China
| | - W Mai
- Department of Gastrointestinal Surgery, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, China
| | - H Wu
- Department of General Surgery, the First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Y Hu
- Department of Gastrointestinal Surgery, Sichuan People's Hospital, Chengdu, Sichuan 610072, China
| | - D R Wang
- Department of Gastrointestinal Surgery, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu 225001, China
| | - F W Luo
- Department of Acute Abdominal Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, China
| | - L G Xia
- Department of Gastrointestinal Surgery, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, China
| | - J J Lai
- Department of Gastrointestinal Surgery, Yuebei people's hospital, Shaoguan, Guangdong 512026, China
| | - D M Zhang
- Department of General Surgery, Baotou Central Hospital, Baotou, Inner Mongolia 014040, China
| | - Q Wang
- Department of Gastrointestinal Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - G Han
- Department of Gastrointestinal Nutrition and Hernia Surgery, the Second Hospital of Jilin University, Changchun, Jilin 130041, China
| | - X W Wu
- Research Institute of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu 210002, China
| | - J A Ren
- Research Institute of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, Jiangsu 210002, China
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Li Z, Gao JR, Song L, Wang PG, Ren JA, Wu XW, Luo SM, Zeng QJ, Weng YH, Xu XJ, Yuan QZ, Zhao J, Liao NS, Mai W, Wang F, Cao H, Wang SC, Han G, Wang DR, Wang H, Zhang J, Zhang H, Zhang DM, Liao WS, Zhao WW, Li W, Cui P, Chen X, Zhang HY, Yang T, Wang L, Gao YS, Li J, Wu JJ, Zhou W, Lyu ZJ, Fang J. [Risk factors for surgical site infection after emergency abdominal surgery: a multicenter cross-sectional study in China]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1043-1050. [PMID: 33212552 DOI: 10.3760/cma.j.issn.441530-20200527-00315] [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: Surgical site infection (SSI) is the most common infectious complication after emergency abdominal surgery (EAS). To a large extent, most SSI can be prevented, but there are few relevant studies in China. This study mainly investigated the current situation of SSI occurrence after EAS in China, and further explored risk factors for SSI occurrence. Methods: Multi-center cross-sectional study was conducted. Clinical data of patients undergoing EAS in 33 hospitals across China between May 1, 2019 and June 7, 2019 were prospectively collected, including perioperative data and microbial culture results from infected incisions. The primary outcome was the incidence of SSI after EAS, while the secondary outcomes were postoperative hospital stay, ICU occupancy rate, length of ICU stay, hospitalization cost, and mortality within postoperative 30 days. Univariate and multivariate logistic regression models were used to analyze the risk factors of SSI after EAS. Results: A total of 660 EAS patients aged (47.9±18.3) years were enrolled in this study, including 56.5% of males (373/660). Forty-nine (7.4%) patients developed postoperative SSI. The main pathogen of SSI was Escherichia coli [culture positive rate was 32.7% (16/49)]. As compared to patients without SSI, those with SSI were more likely to be older (median 56 years vs. 46 years, U=19 973.5, P<0.001), male [71.4% (35/49) vs. 56.1% (343/611), χ(2)=4.334, P=0.037] and diabetes [14.3% (7/49) vs. 5.1% (31/611), χ(2)=5.498, P=0.015]; with-lower preoperative hemoglobin (median: 122.0 g/L vs. 143.5 g/L, U=11 471.5, P=0.006) and albumin (median: 35.5 g/L vs. 40.8 g/L, U=9452.0, P<0.001), with higher blood glucose (median: 6.9 mmol/L vs. 6.0 mmol/L, U=17 754.5, P<0.001); with intestinal obstruction [32.7% (16/49) vs. 9.2% (56/611), χ(2)=25.749, P<0.001], with ASA score 3-4 [42.9% (21/49) vs. 13.9% (85/611), χ(2)=25.563, P<0.001] and with high surgical risk [49.0% (24/49) vs. 7.0% (43/611), χ(2)=105.301, P<0.001]. The main operative procedure resulting in SSI was laparotomy [81.6%(40/49) vs. 35.7%(218/611), χ(2)=40.232, P<0.001]. Patients with SSI experienced significantly longer operation time (median: 150 minutes vs. 75 minutes, U=25 183.5, P<0.001). In terms of clinical outcome, higher ICU occupancy rate [51.0% (25/49) vs. 19.5% (119/611), χ(2)=26.461, P<0.001], more hospitalization costs (median: 44 000 yuan vs. 15 000 yuan, U=24 660.0, P<0.001), longer postoperative hospital stay (median: 10 days vs. 5 days, U=23 100.0, P<0.001) and longer ICU occupancy time (median: 0 days vs. 0 days, U=19 541.5, P<0.001) were found in the SSI group. Multivariate logistic regression analysis showed that the elderly (OR=3.253, 95% CI: 1.178-8.985, P=0.023), colorectal surgery (OR=9.156, 95% CI: 3.655-22.937, P<0.001) and longer operation time (OR=15.912, 95% CI:6.858-36.916, P<0.001) were independent risk factors of SSI, while the laparoscopic surgery (OR=0.288, 95% CI: 0.119-0.694, P=0.006) was an independent protective factor for SSI. Conclusions: For patients undergoing EAS, attention should be paid to middle-aged and elderly patients and those of colorectal surgery. Laparoscopic surgery should be adopted when feasible and the operation time should be minimized, so as to reduce the incidence of SSI and to reduce the burden on patients and medical institutions.
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Affiliation(s)
- Z Li
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - J R Gao
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - L Song
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao, Shandong 266000, China
| | - J A Ren
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing, Jiangsu 210002, China
| | - X W Wu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing, Jiangsu 210002, China
| | - S M Luo
- Department of Gastrointestinal Surgery, the People's Hospital of Xinjiang Uygur Autonomous Region, Urumq, Xinjiang 830001, China
| | - Q J Zeng
- Department of General Surgery, Yueyang First People's Hospital, Yueyang, Hunan 414000, China
| | - Y H Weng
- Department of General Surgery, Shoukang Hospital, Huangshan, Anhui 245000, China
| | - X J Xu
- Department of General Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830001, China
| | - Q Z Yuan
- Department of Hepatobiliary Surgery, Shengli Oilfield Central Hospital, Dongying, Shandong 257000, China
| | - J Zhao
- Department of General Surgery, Shangqiu First People's Hospital, Shangqiu, Henan 476000, China
| | - N S Liao
- Department of General Surgery, Taizhou First People's Hospital, Taizhou, Zhejiang 318000, China
| | - W Mai
- Department of Gastrointestinal Surgery, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530021, China
| | - F Wang
- Department of Gastrointestinal Surgery, the Affiliated Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - H Cao
- Department of General Surgery, General Hospital of Oriental Hospital Group, Huainan, Anhui 232001, China
| | - S C Wang
- Department of General Surgery, the 901th Hospital of PLA Joint Logistic Support Force, Hefei, Anhui 230031, China
| | - G Han
- Department of Gastrointestinal Surgery, the Second Hospital of Jilin University, Changchun, Jilin 130000, China
| | - D R Wang
- Department of General Surgery, Subei People's Hospital, Yangzhou, Jiangsu 225001, China
| | - H Wang
- Department of General Surgery, Dongying People's Hospital, Dongying, Shandong 257091, China
| | - J Zhang
- Department of General Surgery, FAW General Hospital, Changchun, Jilin 100191, China
| | - H Zhang
- Department of General Surgery, Dongguan Kanghua Hospital, Dongguan, Guangdong 523080, China
| | - D M Zhang
- Department of General Surgery, Baotou Central Hospital, Baotou, Inmer Mongolia 014040, China
| | - W S Liao
- Department of General Surgery, Traditional Chinese Medicine Hospital of Langxi County, Xuancheng, Anhui 242000, China
| | - W W Zhao
- Department of General Surgery, Xishan People's Hospital, Wuxi, Jiangsu 214100, China
| | - W Li
- Department of General Surgery, Xuzhou First People's Hospital, Xuzhou, Jiangsu 221002, China
| | - P Cui
- Department of General Surgery, Heji Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 140400, China
| | - X Chen
- Department of General Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116023, China
| | - H Y Zhang
- Department of General Surgery, Nanyang Central Hospital, Nanyang, Henan 476000, China
| | - T Yang
- Department of General Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - L Wang
- Department of General Surgery, the 900th Hospital of the PLA, Fuzhou, Fujian 350000, China
| | - Y S Gao
- Department of Gastrointestinal Surgery,the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, China
| | - J Li
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - J J Wu
- Department of General Surgery, Liyang People's Hospital, Liyang, Jiangsu 213300, China
| | - W Zhou
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310020, China
| | - Z J Lyu
- Department of Gastrointestinal Surgery, Guangdong Provincial People's Hospital, Guangzhou, Guangdong 510030, China
| | - J Fang
- Department of General Surgery, the First People's Hospital, Zhangjiagang, Jiangsu 100191, China
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Zheng T, Xie HH, Wu XW, Chi Q, Wang F, Yang ZH, Chen CW, Mai W, Luo SM, Song XF, Yang SM, Zhou W, Liu HY, Xu XJ, Zhou Z, Liu CY, Ding LA, Xie K, Han G, Liu HB, Wang JZ, Wang SC, Wang PG, Wang GF, Gu GS, Ren JA. [Investigation of treatment and analysis of prognostic risk on enterocutaneous fistula in China: a multicenter prospective study]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1041-1050. [PMID: 31770835 DOI: 10.3760/cma.j.issn.1671-0274.2019.11.007] [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: 01/29/2023]
Abstract
Objective: To investigate the diagnosis and treatment for enterocutaneous fistula (ECF) in China, and to explore the prognostic factors of ECF. Methods: A multi-center cross-sectional study was conducted based on the Registration System of Chinese Gastrointestinal Fistula and Intra-Abdominal Infections to collect the clinical data of ECF patients from 54 medical centers in 22 provinces/municipalities from January 1, 2018 to December 31, 2018. The clinical data included patient gender, age, length of hospital stay, intensive care unit (ICU) admission, underlying diseases, primary diseases, direct causes of ECF, location and type of ECF, complications, treatment and outcomes. All medical records were carefully filled in by the attending physicians, and then re-examined by more than two specialists. The diagnosis of ECF was based on the clinical manifestations, laboratory/imaging findings and intraoperative exploration. Results: A total of 1521 patients with ECF were enrolled, including 1099 males and 422 females, with a median age of 55 years. The top three primary diseases of ECF were malignant tumors in 626 cases (41.2%, including 540 gastrointestinal tumors, accounting for 86.3% of malignant tumors), gastrointestinal ulcers and perforations in 202 cases (13.3%), and trauma in 157 cases (10.3%). The direct causes of ECF were mainly surgical operation in 1194 cases (78.5%), followed by trauma in 156 (10.3%), spontaneous fistula due to Crohn's disease in 92 (6.0%), radiation intestinal injury in 41 (2.7%), severe pancreatitis in 20 (1.3%), endoscopic treatment in 13 (0.9%) and 5 cases (0.3%) of unknown reasons. All the patients were divided into three groups: 1350 cases (88.7%) with simple ECF, 150 (9.9%) with multiple ECF, and 21 (1.4%) with combined internal fistula. Among the patients with simple ECF, 438 cases (28.8%) were jejuno-ileal fistula, 313 (20.6%) colon fistula, 170 (11.2%) rectal fistula, 111 (7.3%) duodenal fistula, 76 (5.0%) ileocecal fistula, 65 (4.3%) ileocolic anastomotic fistula, 55 (3.6%) duodenal stump fistula, 36 (2.4%) gastrointestinal anastomotic fistula, 36 (2.4%) esophagogastric/esophagojejunal anastomotic fistula, 29 (1.9%) gastric fistula and 21 (1.4%) cholangiopancreatiointestinal. Among all the simple ECF patients, 991 were tubular fistula and 359 were labial fistula. A total of 1146 patients finished the treatment, of whom 1061 (92.6%) were healed (586 by surgery and 475 self-healing) and 85 (7.4%) died. A total of 1043 patients (91.0%) received nutritional support therapy, and 77 (6.7%) received fistuloclysis. Infectious source control procedures were applied to 1042 patients, including 711 (62.0%) with active lavage and drainage and 331 (28.9%) with passive drainage. Among them, 841 patients (73.4%) underwent minimally invasive procedures of infectious source control (replacement of drainage tube through sinus tract, puncture drainage, etc.), 201 (17.5%) underwent laparotomy drainage, while 104 (9.1%) did not undergo any drainage measures. A total of 610 patients (53.2%) received definitive operation, 24 patients died within postoperative 30-day with mortality of 3.9% (24/610), 69 (11.3%) developed surgical site infection (SSI), and 24 (3.9%) had a relapse of fistula. The highest cure rate was achieved in ileocecal fistula (100%), followed by rectal fistula (96.2%, 128/133) and duodenal stump fistula (95.7%,44/46). The highest mortality was found in combined internal fistula (3/12) and no death in ileocecal fistula. Univariate prognostic analysis showed that primary diseases as Crohn's disease (χ(2)=6.570, P=0.010) and appendicitis/appendiceal abscess (P=0.012), intestinal fistula combining with internal fistula (χ(2)=5.460, P=0.019), multiple ECF (χ(2)=7.135, P=0.008), esophagogastric / esophagojejunal anastomotic fistula (χ(2)=9.501, P=0.002), ECF at ileocecal junction (P=0.012), non-drainage/passive drainage before the diagnosis of intestinal fistula (χ(2)=9.688, P=0.008), non-drainage/passive drainage after the diagnosis of intestinal fistula (χ(2)=9.711, P=0.008), complicating with multiple organ dysfunction syndrome (MODS) (χ(2)=179.699, P<0.001), sepsis (χ(2)=211.851, P<0.001), hemorrhage (χ(2)=85.300, P<0.001), pulmonary infection (χ(2)=60.096, P<0.001), catheter-associated infection (χ(2)=10.617, P=0.001) and malnutrition (χ(2)=21.199, P<0.001) were associated with mortality. Multivariate prognostic analysis cofirmed that sepsis (OR=7.103, 95%CI:3.694-13.657, P<0.001), complicating with MODS (OR=5.018, 95%CI:2.170-11.604, P<0.001), and hemorrhage (OR=4.703, 95%CI: 2.300-9.618, P<0.001) were independent risk factors of the death for ECF patients. Meanwhile, active lavage and drainage after the definite ECF diagnosis was the protective factor (OR=0.223, 95%CI: 0.067-0.745, P=0.015). Conclusions: The overall mortality of ECF is still high. Surgical operation is the most common cause of ECF. Complications e.g. sepsis, MODS, hemorrhage, and catheter-associated infection, are the main causes of death. Active lavage and drainage is important to improve the prognosis of ECF.
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Affiliation(s)
- T Zheng
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - H H Xie
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - X W Wu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - Q Chi
- Department of General Surgery, The Second Affiliated Hospital, Harbin Medical University, Harbin 150086, China
| | - F Wang
- Department of Gastrointestinal Surgery, Affiliated Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - Z H Yang
- Department of General Surgery, The First College of Clinical Medical Science, China Three Gorges University, Hubei Yichang 443000, China
| | - C W Chen
- Department of Gastrointestinal Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - W Mai
- Department of Gastrointestinal Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530021, China
| | - S M Luo
- Department of Emergency Trauma Surgery, The People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi 830001, China
| | - X F Song
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, Medical College of Henan University, Zhengzhou 450003, China
| | - S M Yang
- Department of Gastrointestinal Surgery, The Nankai Hospital, Nankai University, Tianjin 300100, China
| | - W Zhou
- Department of General Surgery, Sir Run Run Shaw Hospital, Medicine of School, Zhejiang University, Hangzhou 310016, China
| | - H Y Liu
- Department of Emergency Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China
| | - X J Xu
- Department of Pancreatic Surgery, The First Affiliated Hospital, Xinjiang Medical University, Urumqi 830054, China
| | - Z Zhou
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Division of Life Sciences And Medicine, University of Science and Technology of China, Hefei 230001, China
| | - C Y Liu
- Department of Gastrointestinal Surgery and Hernia Surgery, Ganzhou People's Hospital of Jiangxi Province, Jiangxi Ganzhou 341000, China
| | - L A Ding
- Department of Gastrointestinal Surgery, Affiliated Hospital, Qingdao University, Shandong Qingdao 266003, China
| | - K Xie
- Department of General Surgery, Chest Hospital of Nanyang City of Henan Province, Henan Nanyang 473000, China
| | - G Han
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun 130041, China
| | - H B Liu
- Department of GeneralSurgery, The 940th Hospital, Joint Logistics Support Force of Chinese PLA, Lanzhou 730050, China
| | - J Z Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Gannan Medical College, Jiangxi Ganzhou 341000, China
| | - S C Wang
- Department of General Surgery, The 901th Hospital, Joint Logistic Support Force of PLA, Hefei 230031, China
| | - P G Wang
- Department of Emergency Surgery, Affiliated Hospital, Qingdao University, Shandong Qingdao 266003, China
| | - G F Wang
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - G S Gu
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
| | - J A Ren
- Research Institute of General Surgery, East War Zone Hospital of PLA, Nanjing 210002, China
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Ye J, Yu Q, Mai W, Liang P, Liu X, Wang Y. Correction to: Dietary protein intake and subsequent risk of type 2 diabetes: a dose-response meta-analysis of prospective cohort studies. Acta Diabetol 2019; 56:871. [PMID: 31147845 DOI: 10.1007/s00592-019-01365-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The article Dietary protein intake and subsequent risk of type 2 diabetes: a dose-response meta-analysis of prospective cohort studies written by Jianhong Ye, Qixin Yu, Weihua Mai, Peiling Liang, Xiaoxia Liu, Yunnan Wang was originally published electronically on the publisher's internet portal (currently SpringerLink) on 30 March 2019 with open access. With the author(s)' decision to step back from Open Choice, the copyright of the article changed on 30 May 2019 to © Springer-Verlag Italia S.r.l., part of Springer Nature 2019 and the article is forthwith distributed under the terms of copyright.
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Affiliation(s)
- Jianhong Ye
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Qixin Yu
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Weihua Mai
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Peiling Liang
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Xiaoxia Liu
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Yunnan Wang
- Functional Department, Foshan Hospital of TCM, No.6 Qinren Road, Chancheng District, Foshan, 528000, China.
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Ye J, Yu Q, Mai W, Liang P, Liu X, Wang Y. Dietary protein intake and subsequent risk of type 2 diabetes: a dose-response meta-analysis of prospective cohort studies. Acta Diabetol 2019; 56:851-870. [PMID: 30929078 DOI: 10.1007/s00592-019-01320-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/05/2019] [Indexed: 12/25/2022]
Abstract
AIMS Dietary proteins, including those obtained from animal and plant sources, have inconsistently been correlated with type 2 diabetes mellitus (T2DM) risk. Therefore, a meta-analysis was conducted to evaluate the association between dietary proteins and the risk of T2DM. METHODS Prospective cohort studies published until November 2018 were systematically searched in PubMed, Embase, and the Cochrane library. The pooled relative risks (RRs) were calculated with 95% confidence intervals (CIs) using the random-effects model. RESULTS Ten articles involving a total of 21 cohorts were included in the final meta-analysis. A total of 487,956 individuals were recruited in these studies and 38,350 T2DM cases were reported. Analysis of the pooled RRs indicated that high total protein intake was associated with an increased risk of T2DM (RR 1.10; P = 0.006), whereas moderate total protein intake was not significantly associated with T2DM risk (RR 1.00; P = 0.917). Moreover, a higher risk of T2DM was observed with high animal protein intake (RR 1.13; P = 0.013), whereas moderate animal protein intake had little or no effect on T2DM risk (RR 1.06; P = 0.058). Finally, high intake of plant protein did not affect T2DM risk (RR 0.93; P = 0.074), whereas moderate intake was associated with a reduced risk of T2DM (RR 0.94; P < 0.001). CONCLUSIONS The results of this study indicate that high total protein and animal protein intakes are associated with an increased risk of T2DM, whereas moderate plant protein intake is associated with a decreased risk of T2DM.
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Affiliation(s)
- Jianhong Ye
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Qixin Yu
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Weihua Mai
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Peiling Liang
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Xiaoxia Liu
- Department of Endocrinology, Foshan Hospital of TCM, Foshan, 528000, China
| | - Yunnan Wang
- Functional Department, Foshan Hospital of TCM, No.6 Qinren Road, Chancheng District, Foshan, 528000, China.
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Fang Z, Weng C, Li H, Tao R, Mai W, Liu X, Lu L, Lai S, Duan Q, Alvarez C, Arvan P, Wynshaw-Boris A, Li Y, Pei Y, Jin F, Li Y. Single-Cell Heterogeneity Analysis and CRISPR Screen Identify Key β-Cell-Specific Disease Genes. Cell Rep 2019; 26:3132-3144.e7. [PMID: 30865899 PMCID: PMC6573026 DOI: 10.1016/j.celrep.2019.02.043] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 05/03/2018] [Accepted: 02/12/2019] [Indexed: 01/13/2023] Open
Abstract
Identification of human disease signature genes typically requires samples from many donors to achieve statistical significance. Here, we show that single-cell heterogeneity analysis may overcome this hurdle by significantly improving the test sensitivity. We analyzed the transcriptome of 39,905 single islets cells from 9 donors and observed distinct β cell heterogeneity trajectories associated with obesity or type 2 diabetes (T2D). We therefore developed RePACT, a sensitive single-cell analysis algorithm to identify both common and specific signature genes for obesity and T2D. We mapped both β-cell-specific genes and disease signature genes to the insulin regulatory network identified from a genome-wide CRISPR screen. Our integrative analysis discovered the previously unrecognized roles of the cohesin loading complex and the NuA4/Tip60 histone acetyltransferase complex in regulating insulin transcription and release. Our study demonstrated the power of combining single-cell heterogeneity analysis and functional genomics to dissect the etiology of complex diseases.
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Affiliation(s)
- Zhou Fang
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Chen Weng
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Haiyan Li
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Ran Tao
- Center for Cancer and Immunology Research, Brain Tumor Institute, Children's National Medical Center, Washington, D.C. 20010, USA
| | - Weihua Mai
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Neurology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China
| | - Xiaoxiao Liu
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Leina Lu
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Sisi Lai
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Qing Duan
- Department of Biostatistics, Department of Genetics, Department of Computer Science, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Carlos Alvarez
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA; The Biomedical Sciences Training Program (BSTP), School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Peter Arvan
- Division of Metabolism, Endocrinology, and Diabetes, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Anthony Wynshaw-Boris
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Yun Li
- Department of Biostatistics, Department of Genetics, Department of Computer Science, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Yanxin Pei
- Center for Cancer and Immunology Research, Brain Tumor Institute, Children's National Medical Center, Washington, D.C. 20010, USA
| | - Fulai Jin
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Population and Quantitative Health Sciences, Department of Electrical Engineering and Computer Science, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Yan Li
- Department of Genetics and Genome Sciences, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA.
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Mai W, Liu X, Wang J, Zheng J, Wang X, Zhou W. Protective effects of CX3CR1 on autoimmune inflammation in a chronic EAE model for MS through modulation of antigen-presenting cell-related molecular MHC-II and its regulators. Neurol Sci 2019; 40:779-791. [PMID: 30671738 DOI: 10.1007/s10072-019-3721-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 01/12/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND Recent evidences have implicated neuroprotective effects of CX3CR1 in multiple sclerosis (MS). But whether CX3CR1 is involved in modulation of antigen-presenting cell (APC)-related molecular MHC-II and what the possible mechanism is remain unidentified. OBJECTIVE In this study, we intended to investigate the effects of CX3CR1 on MHC-II expressions on brain myeloid cells in experimental autoimmune encephalomyelitis (EAE) mice and explore the possible regulators for it. METHODS CX3CR1-deficient EAE mice were created. Disease severity, pathological damage, and the expressions of MHC-II and its mediators on myeloid cells were detected. RESULTS We found that compare with wile-typed EAE mice, CX3CR1-deficient EAE mice exhibited more severe disease severity. An accumulation of CD45+CD115+Ly6C-CD11c+ cells was reserved in the affected EAE brain of CX3CR1-deficient mice, consistent with disease severity and pathological damage in the brain. The expressions of MHC-II on the brain CD45+CD115+Ly6C-CD11c+ cells of CX3CR1-deficient EAE mice were elevated, in accord with the increased protein and mRNA expressions of class II transactivator (CIITA) and interferon regulatory factor-1 (IRF-1). CONCLUSIONS The findings indicated that CX3CR1 might be an important regulator for MHC-II expressions on APCs, playing a beneficial role in EAE. The mechanism was probably through regulation on the MHC-II regulators CIITA and IRF-1.
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Affiliation(s)
- Weihua Mai
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, NO. 52 East Meihua Road, Zhuhai, 519000, Guangdong Province, China.
| | - Xingwei Liu
- Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Junfeng Wang
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, NO. 52 East Meihua Road, Zhuhai, 519000, Guangdong Province, China
| | - Jing Zheng
- Department of Nephrology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Xiao Wang
- Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Wenying Zhou
- Department of Laboratory Science, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
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Abstract
The objective of this study was to investigate the key genes and pathways associated with thyroid carcinoma. Based on the microarray data of GSE27155, we identified the differentially expressed genes (DEGs) between four types of thyroid carcinoma samples (papillary carcinoma (PTC), oncocytic carcinoma (OTC), follicular carcinoma (FTC) and anaplastic carcinoma (ATC)) and normal controls. With the obtained DEGs, we performed gene functional interaction (FI) network analysis. Then we conducted Venn diagram analysis to identify the intersection and specific DEGs of the four types of thyroid carcinomas. The intersections DEGs were performed by functional enrichment and transcription factor (TF) prediction analyses. These specific DEGs were performed by pathway enrichment analysis. There were respectively 323, 318, 118 and 1005 DEGs identified in PTC, OTC, FTC and ATC. Twelve sub-network modules were extracted based on gene FI network analysis and eight thyroid carcinoma-associated DEGs were involved in the network, such as TIMP1. Based on the Venn diagram analysis, 27 common DEGs were identified, such as HMGB3 which was regulated by TF of NKX3-1. There were 149 PTC-specific DEGs (like CLDN1), 160 OTC-specific DEGs, 94 FTC-specific DEGs (like PPARG), and 789 ATC-specific DEGs (like CDK1). They were enriched in some pathways, such as Cell cycle, Citrate cycle, and Oxidative phosphorylation. TIMP1, HMGB3, CLDN1, CDK1 and PPARG as well as pathways of Cell cycle, Citrate cycle, and Oxidative phosphorylation may play important roles in the progression of thyroid carcinoma.
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Mai W, Sun Y, Liu X, Lin D, Lu D. Characteristic findings by phototrichogram in southern Chinese women with Female pattern hair loss. Skin Res Technol 2019; 25:447-455. [PMID: 30614573 DOI: 10.1111/srt.12672] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 09/26/2018] [Accepted: 12/08/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To investigate the characteristics of hairs in Female pattern hair loss (FPHL) patients and healthy females in Southern China. MATERIALS AND METHODS Three fundamental hair parameters in different scalp areas of 90 Southern Chinese FPHL patients and 83 healthy controls were analyzed by phototrichogram. RESULTS Female pattern hair loss patients showed reduced hair density, hair diameter, and terminal/vellus hair ratio. The reduction correlated with the severity of Ludwig staging. Midscalp was the most affected area in FPHL, but occipital and temporal sites were also involved. In normal women, the highest hair density was observed in midscalp, followed by occipital and temporal areas. Peak hair density at midscalp sites was reached at 20s group, then declined with age. Maximum hair diameter at midscalp and occipital sites occurred in 40s group. Terminal/vellus hair ratio tended to increase with age and peak on 50-60s group. CONCLUSION Reduced hair density and hair diameter, and miniaturization of hair follicles are the characteristics of FPHL in Southern Chinese women. Occipital and temporal sites are also affected in FPHL. Age-associated changes might have an influence on the hair condition. The values of hair parameters obtained in this study will help to establish reference data for better evaluation of hair disorders.
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Affiliation(s)
- Weihua Mai
- Department of Preventive Medicine, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Yixian Sun
- Jiang Mei Li Gynecological clinic, Xinzhu, Taiwan
| | - Xingwei Liu
- Department of General Surgery, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Daojian Lin
- Department of Preventive Medicine, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
| | - Dongqing Lu
- Department of Dermatology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China
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Mai W, Liu H, Liu X, Chen L, Zhou W. Low HDL-C levels are associated with cervicocerebral atherosclerotic stenosis in Southern Chinese patients with large artery atherosclerotic ischemic stroke. Clin Neurol Neurosurg 2018; 171:79-84. [PMID: 29870886 DOI: 10.1016/j.clineuro.2018.05.021] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 02/08/2018] [Accepted: 05/28/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVES The aim of this study is to investigate the association of HDL-C with CCAS, as well as its intracranial or extracranial location in the Southern Chinese population. PATIENTS AND METHODS 123 Southern Chinese patients with large-artery atherosclerotic(LAA) ischemic stroke were enrolled for the final analysis. Based on the stenosis severity defined by digital subtraction angiography, the patients were categorized into CCAS and non-CCAS groups. The degree of artery stenosis among patients of CCAS was classified into three grades. CCAS were further categorized into intracranial AS (ICAS), Extracranial AS (ECAS) and combined intra-/extra-cranial AS (IECAS). RESULTS It was showed that patients with CCAS had a lower HDL-C level compared to NCCAS, and HDL-C levels were correlated to the degree of artery stenosis among CCAS. After adjusting for multiple potential confounders, low HDL-C level remained independently associated with CCAS(adjusted OR = 2.860). Patients with the lowest HDL-C quartile had a significantly increased risk for CCAS(adjusted OR: 5.771), referred to the highest quartile. But HDL-C levels in patients with ICAS, ECAS and IECAS were not significantly different, and there was no significant correlation between HDL-C levels and ICAS. CONCLUSION Our data indicate that low HDL-C level is associated with CCAS in Southern Chinese patients with LAA ischemic stroke. But the effects of HDL-C on the distribution of CCAS is required to be further explored.
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Affiliation(s)
- Weihua Mai
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, China.
| | - Hanwei Liu
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Xingwei Liu
- Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Ling Chen
- Department of Medical Quality Control, The Fifth Affiliated Hospital of Sun Yat-sen University, China
| | - Wenying Zhou
- Department of Laboratory Science, The Fifth Affiliated Hospital of Sun Yat-sen University, China
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Mai W, Lu D, Liu X, Chen L. MCP-1 produced by keratinocytes is associated with leucocyte recruitment during elicitation of nickel-induced occupational allergic contact dermatitis. Toxicol Ind Health 2017; 34:36-43. [PMID: 29132256 DOI: 10.1177/0748233717738633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 01/04/2023]
Abstract
To investigate the expression profile of monocyte chemoattractant peptide-1 (MCP-1) by keratinocytes after nickel exposure and to identify its role for leucocyte migration during nickel-induced occupational allergic contact dermatitis (OACD), 26 workers diagnosed with nickel-induced OACD were enrolled. Skin biopsies from the positive nickel-challenged sites at different time points were assessed by immunohistochemistry (IHC) for MCP-1, CD68, CD45RO, and in situ hybridization (ISH) for MCP-1, using chronic periumbilical dermititis as controls. The expressions of MCP-1 in HaCaT cell culture after nickel treatment were quantified by enzyme-linked immunosorbent assay. The results showed that at positive nickel-challenged sites, strong expressions of MCP-1, both messenger RNA (mRNA) and protein, were detected in the basal keratinocytes during the early phase (24-48 h after nickel application), paralleled by the recruitment of CD68+ and CD45RO+ cells to the skin compartments. The expressions of MCP-1 declined gradually in the late phase (72-96 h after nickel application). Treatment with nickel sulfate at noncytotoxic concentrations (0.01-100 µM) induced a concentration-related elevation of MCP-1 expression by HaCaT cells compared to the untreated cells. The data indicated that a temporal expression pattern of MCP-1 produced by keratinocytes after nickel exposure was involved in the complex process of mononuclear cell infiltration during elicitation of nickel-induced OACD. Targeting MCP-1 might be a potential therapeutic strategy for OACD.
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Affiliation(s)
- Weihua Mai
- 1 Department of Preventive Medicine, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Dongqing Lu
- 2 Department of Dermatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Xingwei Liu
- 3 Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
| | - Ling Chen
- 4 Department of Medical Quality Control, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong, China
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Winter S, Muller T, Ferian P, Souza L, Luciani M, Porto C, Serakides R, Mai W. Osteocondromatose em gato: relato de caso. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-9358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO A osteocondromatose é caracterizada por nódulos únicos ou múltiplos decorrentes de um crescimento ósseo excessivo benigno. É encontrada em cães, gatos, equinos e humanos. Em felinos, tem maior incidência dos dois aos quatro anos de idade. A etiologia em gatos está relacionada ao vírus da leucemia felina, e também já foi encontrada relação com o fibrossarcoma. A manifestação clínica depende do local acometido e do tamanho da lesão. O diagnóstico definitivo é por meio de histopatologia e o prognóstico é desfavorável, pois ocorrem muitas recidivas. Este relato de caso objetiva descrever a apresentação dessa enfermidade em um felino jovem.
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Affiliation(s)
- S. Winter
- Universidade do Estado de Santa Catarina, Brazil
| | - T.R. Muller
- Universidade do Estado de Santa Catarina, Brazil
| | - P.E. Ferian
- Universidade do Estado de Santa Catarina, Brazil
| | - L.P. Souza
- Universidade do Estado de Santa Catarina, Brazil
| | - M.G. Luciani
- Universidade do Estado de Santa Catarina, Brazil
| | - C. Porto
- Universidade do Estado de Santa Catarina, Brazil
| | | | - W. Mai
- University of Pennsylvania, USA
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Mai W, Liu X, Su G, Zhou W, Wen Z, Lu D. Elevation of Circulating Th17/Th22 Cells Exposed to Low-Level Formaldehyde and Its Relevance to Formaldehyde-Induced Occupational Allergic Contact Dermatitis. J Occup Environ Med 2017; 59:817-821. [PMID: 28697061 DOI: 10.1097/jom.0000000000001074] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the effects of formaldehyde exposure on Th17 and Th22 cells and its relevance to human occupational allergic contact dermatitis (OACD). METHODS Circulating IL17-/IL22-secreting cells and serum IL17/IL22 levels in formaldehyde-exposed workers at Occupational Exposure Limit and nonexposed controls were assessed. RESULTS The IL17 and IL22 cell population were detected in both CD3CD8 and CD3CD8 cells. The percentages of circulating IL17 and IL22 T cells in the workers with and without ACD history were all elevated, which were more remarkable in the ones with ACD history. Serum levels of IL17 and IL22 between the workers and controls were not significantly different. CONCLUSIONS Low-level formaldehyde exposure may increase circulating IL17-/IL22-producing T cells (CD8 and CD8), possibly involved in the development of human OACD. But it may not alter serum levels of IL17/IL22 before the appearance of OACD symptoms.
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Affiliation(s)
- Weihua Mai
- Department of Prevention and Healthcare, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China (Dr Mai, Su); Department of General Surgery, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China (Mr Liu); Department of Laboratory Science, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China (Ms Zhou); and Department of Dermatology, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, Guangdong Province, China (Mr Wen, Mr Lu)
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Wang X, Bu J, Liu X, Wang W, Mai W, Lv B, Zou J, Mo X, Li X, Wang J, Niu B, Fan Y, Hou B. miR-133b suppresses metastasis by targeting HOXA9 in human colorectal cancer. Oncotarget 2017; 8:63935-63948. [PMID: 28969042 PMCID: PMC5609974 DOI: 10.18632/oncotarget.19212] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [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: 09/18/2016] [Accepted: 06/11/2017] [Indexed: 01/20/2023] Open
Abstract
Functions and mechanisms of microRNA (miRNA) involved in colorectal cancer (CRC) metastasis are largely unknown. Here, a miRNA microarray analysis was performed in CRC primary tissues and metastatic hepatic tissues to disclose crucial miRNA involved in CRC metastasis. MiR-133b was decreased and negatively correlated with metastasis in CRC. Overexpression of miR-133b significantly suppressed metastasis of CRC in vitro and in vivo. HOXA9 was identified as a direct and functional target of miR-133b. In addition, HOXA9 was negatively correlated with miR-133b and promoted CRC malignant progress. Moreover, miR-133b decreased HOXA9 expression, and subsequently downregulated ZEB1 and upregulated E-cadherin expression. Intriguingly, lower miR-133b and higher HOXA9 expression significantly contributed to poorer outcomes in CRC patients. Multivariate analysis indicated that miR-133b was an independent and significant predictor of CRC patient overall survival. In conclusion, we newly determined that miR-133b targeted the HOXA9/ZEB1 pathway to promote tumor metastasis in CRC cells. This axis provided insights into the mechanism underlying miRNA regulation of CRC metastasis and a novel therapeutic target for CRC treatment.
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Affiliation(s)
- Xiao Wang
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Juyuan Bu
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Xingwei Liu
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Wenfeng Wang
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Weihua Mai
- Departments of Preventive Medicine, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Baojun Lv
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Jinlin Zou
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Xiangqiong Mo
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Xiaoling Li
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Jingyu Wang
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Bin Niu
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Yunping Fan
- Departments of ENT - Head and Neck Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
| | - Bingzong Hou
- Departments of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, Guangdong Province, China
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Yu J, Mai W, Cui Y, Kong L. Key genes and pathways predicted in papillary thyroid carcinoma based on bioinformatics analysis. J Endocrinol Invest 2016; 39:1285-1293. [PMID: 27250077 DOI: 10.1007/s40618-016-0491-z] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/23/2016] [Indexed: 12/11/2022]
Abstract
PURPOSE The aim of this study was to predict the key genes and pathways associated with papillary thyroid carcinoma (PTC). METHODS Based on the microarray data of GSE3467 from Gene Expression Omnibus database, we identified the differentially expressed genes (DEGs) between 9 PTC samples and 9 normal controls. With the identified DEGs, functional enrichment analyses were performed. Additionally, a protein-protein interaction network was constructed to screened out some key gene nodes. These key nodes were then performed clustering analysis and pathway enrichment analysis. Furthermore, human PTC-associated network was constructed based on these key genes to investigate the potential relationships between genes and PTC. RESULTS A total of 651 up-regulated and 692 down-regulated DEGs were identified in PTC samples compared with controls. The up-regulated DEGs, such as complement component 3 (C3), were mainly enriched in hsa04610:Complement and coagulation cascades. The down-regulated DEGs, including paired box 8 (PAX8), peroxisome proliferator-activated receptor gamma (PPARG), and cadherin 1, type 1 were found enriched in hsa05216:Thyroid cancer. Total 33 DEGs were considered as key genes, such as PAX8, PPARG and Jun proto-oncogene (JUN). Disease-associated network analysis found that 15 key genes such as JUN, PPARG and matrix metallopeptidase 9 (MMP9) were involved in this network. CONCLUSIONS DEGs of C3, PPARG, PAX8, JUN and MMP9 were differentially expressed in PTC samples and may be used as potential biomarkers in the diagnosis and treatment of PTC. Additionally, pathways of complement and coagulation cascades and thyroid cancer may also play important roles in the development of PTC.
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Affiliation(s)
- J Yu
- Department of Head and Neck Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, 150081, China
| | - W Mai
- Department of Orthopedics, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, 150081, China
| | - Y Cui
- Department of Radiation Oncology, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, 150081, China
| | - L Kong
- Department of Head and Neck Surgery, The Affiliated Tumor Hospital of Harbin Medical University, Harbin, 150081, China.
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Shen YH, Xie ZB, Yue AM, Wei QD, Zhao HF, Yin HD, Mai W, Zhong XG, Huang SR. Expression level of microRNA-195 in the serum of patients with gastric cancer and its relationship with the clinicopathological staging of the cancer. Eur Rev Med Pharmacol Sci 2016; 20:1283-1287. [PMID: 27097947] [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 miroRNA-195 (miR-195) expression in the serum and cancer tissue of patients with gastric cancer and to investigate the relationship between its expression and clinicopathological features of gastric cancer. PATIENTS AND METHODS Sixty-two patients with gastric cancer admitted to our institution were included in the study group, and 36 healthy persons undergoing health check-up at our institution served as control group. miR-195 expressions in the serum, gastric cancer tissue and corresponding paracancerous tissue in subjects of two groups were measured by using quantitative fluorescent real-time PCR (QF-RT-PCR), and the relationship between miR-195 and the clinicopathological features of the cancer was investigated. RESULTS miR-195 expression level in the serum of gastric cancer patients was significantly lower than that in the control group (p <0.05). miR-195 expression in gastric cancer tissue was also significantly lower than that in corresponding paracancerous tissue (p <0.05). The results of correlation analysis showed that low expression of miR-195 was negatively correlated with the infiltration depth, the extent of differentiation, the clinical staging and lymph node metastasis, all with statistical significance (p <0.05), but not significantly correlated with tumor locations (p >0.05). CONCLUSIONS Low expression of miR-195 in patients with gastric cancer may play a certain role in promoting the genesis and development of gastric cancer and it can function as a potential novel tumor marker for the early diagnosis and prognosis evaluation of gastric cancer.
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Affiliation(s)
- Y-H Shen
- Department of Oncological Surgery, Xinxiang Central Hospital, Xinxiang, Henan, P.R. China.
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Qiu W, Chang Y, Li R, Long Y, Huang J, Mai W, Sun X, Lu Z, Hu X. [Correlation of AQP4 gene polymorphism with NMO clinical phenotypes and its underlying mechanism]. Zhonghua Yi Xue Za Zhi 2015; 95:501-506. [PMID: 25916924] [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: 06/04/2023]
Abstract
OBJECTIVE To explore the correlation between aquaporin-4 (AQP4) gene single nucleotide polymorphism (SNP) and clinical phenotypes of neuromyelitis optica (NMO) and its underlying mechanism. METHODS Eight SNPs in AQP4 gene regulatory region were selected and genotyped for 208 anti-AQP4 autoantibodies (NMO-IgG) seropositive cases during January 2010 to January 2014 and 204 healthy subjects. Then the correlation was further analysed between genotypes and NMO phenotypes. And the effect of microRNA (miRNA) on the expression of AQP4 gene was examined by dual-luciferase reporter technique. RESULTS The A/T genotype of rs1058424 (50.61% vs 70.45%, OR = 0.430, 95% CI 0.210-0.880) and C/T (50.00% vs 68.18%, OR = 0.467, 95%CI 0.231-0.994) genotype of rs3763043 in 3'-UTR were correlated with longitudinal extensive transverse myelitis; the A/T genotype of rs1058424 (46.72% vs 66.28%, OR = 0.525, 95% CI 0.276-0.999) and A/C genotype of rs335929 (45.08% vs 58.14%, OR = 0.527, 95% CI 0.281-0.987) in 3'-UTR as well as C/T genotype of rs151244 (50.82% vs 69.77%, OR = 0.450, 95% CI 0.230-0.881) in promoter 0 region were correlated with optic neuritis. The polymorphism of rs6508459 in 3'-UTR and rs3763040 in intron region were correlated with concurrent systemic autoimmune diseases (P = 0.012 and 0.023 respectively).miRNA 323-3p could regulate AQP4 gene expression.However, variation in SNP rs1058424 failed to affect this regulation. CONCLUSION SNP in 3'-UTR of AQP4 gene may be associated with NMO phenotypes.miRNA 323-3p may participate in the pathogenesis of NMO by binding to certain SNP sites in 3'-UTR of AQP4 gene and regulating its expression.
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Affiliation(s)
- Wei Qiu
- Department of Neurology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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Mai W, Hu X, Lu Z, Qiu W, Peng F, Wang Y. Preliminary study on the association of AQP4 promoter polymorphism with anti-aquaporin-4 antibody positivity in Southern Han Chinese patients with idiopathic demyelinating disorders of central nervous system. J Neuroimmunol 2013; 255:75-80. [DOI: 10.1016/j.jneuroim.2012.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Revised: 10/08/2012] [Accepted: 10/09/2012] [Indexed: 10/27/2022]
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Mai W, Liu X, Fan Y, Liu H, Hong HY, Han R, Zhou W. Up-regulated expression of Fas antigen in peripheral T cell subsets in patients with myasthenia gravis. ACTA ACUST UNITED AC 2012; 35:E294. [PMID: 23043710 DOI: 10.25011/cim.v35i5.18702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Indexed: 11/03/2022]
Abstract
PURPOSE Recent reports have linked various autoimmune diseases to defective Fas-mediated apoptosis or Fas expression. Here we aimed to determine whether Fas-mediated apoptosis is involved in the pathogenesis of myasthenia gravis (MG). METHODS The expression of Fas antigen in peripheral T cell subsets from 17 Chinese patients with MG and 13 healthy individuals was determined by flow cytometry, and its associations with clinical classification, thymus pathology, the concomitance with hyperthyroidism (HT) and corticosteroid treatment were investigated. RESULTS Compared with normal controls, a significantly up-regulated expression of Fas antigen was observed in the peripheral CD4+, CD4+CD8- and CD4-CD8- T cell subsets from patients with MG. Fas expression in CD4-CD8+ T cells of MG patients with normal thymus was significantly higher than that of patients with thymoma. Fas expressions in CD4+CD8+ T cells in MG patients with HT was significantly higher than controls and the ones without HT. Enhanced Fas expressions was found in CD4-CD8+ and CD4-CD8- T cells of MG patients with corticosteroid treatment, but no significant difference of Fas expression in peripheral T cells between patients with ocular MG (OMG) and general MG (GMG) was observed. CONCLUSION Fas antigen may play a role in the pathogenesis of MG. It may be involved in the mechanisms of corticosteroid treatment, and with the occurrence of HT. OMG may represent a systemic disease, similar to that of GMG.
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Affiliation(s)
- Weihua Mai
- Department of ENT, the Fithh Affliated Hospital of Sun Yat-sen University, NO. 52 East Meihua Road, Zhuhai 519000, Guangdong Province, People’s Republic of China.
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Abstract
OBJECTIVES The purpose of the current study was to determine normal radiographic kidney -measurements in pet ferrets. METHODS Kidney length and width dimensions and the length of the second lumbar vertebra (L2) were determined from survey ventrodorsal radiographs in 53 neutered ferrets of various ages, weight and sex, with no evidence of urogenital disease. Kidney dimensions were expressed as a ratio to the body length of L2. RESULTS All ferrets in this study had six lumbar vertebrae. The median length of L2 was 13·3 mm, and was longer in males than females (P=0·0001). The 95% confidence interval for kidney-length-to-L2 ratios was 2·21 to 2·31 for the right and 2·15 to 2·25 for the left. For the kidney-width-to-L2 ratios these intervals were 1·09 to 1·14 for the right and 1·07 to 1·12 for the left kidney. There was a significant association between kidney size and weight or sex but not with age. CLINICAL SIGNIFICANCE The results of this radiographic study may allow practitioners to have a more -objective clinical radiographic evaluation of kidney size of pet ferrets based on individual traits.
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Affiliation(s)
- D Eshar
- Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, 3900 Delancey Street, Philadelphia, PA 19104-6010, USA
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Riegersperger M, Plischke M, Steiner-Boker S, Seidinger D, Winkelmayer W, Sunder-Plassmann G, Vlahovic P, Vlahovic P, Cvetkovic T, Djordjevic V, Velickovic-Radovanovic R, Stefanovic N, Ignjatovic A, Sladojevic N, Cademartori V, Massarino F, Parodi EL, Russo R, Sofia A, Fontana I, Viviani GL, Garibotto G, Mai M, Mai W, Taner B, Wadei H, Prendergast M, Gonwa T, Martin J, Martin J, Aurore S, Aline CS, Nicolas M, Manolie M, Catherine S, Eric A, Christophe M, Brakemeier S, Liefeldt L, Glander P, Waiser J, Lachmann N, Schonemann C, Zukunft B, Illigens P, Schmidt D, Wu K, Rudolph B, Neumayer HH, Budde K, Pallardo Mateu L, Gavela Martinez E, Sancho Calabuig A, Crespo Albiach J, Beltran Catalan S, Gavela Martinez E, Kanter Berga J, Kimura T, Yagisawa T, Ishikawa N, Sakuma Y, Hujiwara T, Nukui A, Yashi M, Duraes J, Malheiro J, Fonseca I, Rocha A, Martins LS, Almeida M, Dias L, Castro-Henriques A, Cabrita A, Mai M, Mai W, Wadei H, Prendergast M, Gonwa T, Volpe A, Quaglia M, Menegotto A, Fenoglio R, Izzo C, Airoldi A, Terrone C, Stratta P, Ahmed B, Mireille K, Nilufer B, Annick M, Karl Martin W, Anh-Dung H, Dimitri M, Philippe M, Judith R, Daniel A, Liefeldt L, Glander P, Glander P, Lan Y, Schmidt D, Heine C, Budde K, Neumayer HH, Schmidt D, Glander P, Glander P, Budde K, Neumayer HH, Liefeldt L, Quaglia M, Quaglia M, Capone V, Izzo C, Menegotto A, Fenoglio R, Airoldi A, Stratta P, Grace B, Clayton P, Cass A, Mcdonald S, Yagisawa T, Yagisawa T, Yashi M, Kimura T, Nukui A, Fujiwara T, Sakuma Y, Ishikawa N, Iwabuchi T, Muraishi O, Torregrosa V, Barros X, Martinez de Osaba MJ, Paschoalin R, Campistol JM, Hassan R, El-Hefnawy A, Soliman S, Shokeir A, Cobanoglu Kudu A, Gungor O, Kircelli F, Altinel E, Asci G, Ozbek SS, Toz H, Ok E, Sandrini S, Setti G, Valerio F, Possenti S, Torrisi I, Polanco N, Garcia-Puente L, Gonzalez Monte E, Morales E, Gutierrez E, Bengoa I, Hernandez A, Caballero J, Morales JM, Andres A, Sgarlato V, Sgarlato V, Comai G, La Manna G, Moretti I, Grandinetti V, Martelli D, Scolari MP, Stefoni S, Valentini C, Valentini C, Persici E, La Manna G, Cappuccilli ML, Sgarlato V, Liviano D'arcangelo G, Fabbrizio B, Carretta E, Mosconi G, Scolari MP, Feliciangeli G, Grigioni FW, Stefoni S, Apicella L, Guida B, Vitale S, Garofalo G, Russo L, Maresca I, Rossano R, Memoli B, Carrano R, Federico S, Sabbatini M, Carta P, Zanazzi M, DI Maria L, Caroti L, Miejshtri A, Tsalouchos A, Bertoni E, Sezer S, Erkmen Uyar M, Colak T, Bal Z, Tutal E, Kalaci G, Ozdemir Acar FN, Jacquelinet C, Bayat S, Pernin V, Portales P, Szwarc I, Garrigue V, Vetromile F, Delmas S, Eliaou JF, Mourad G, Huber L, Huber L, Slowinski T, Naik M, Glander P, Liefeldt L, Schmidt D, Neumayer HH, Budde K, Nakai K, Fujii H, Kono K, Goto S, Ishimura T, Takeda M, Fujisawa M, Nishi S, Pereira Paschoalin R, Paschoalin R, Torregrosa JV, Barros Freiria X, Duran Rebolledo CE, Sanchez Escuredo A, Sole M, Campistol JM, Youssouf S, Tabbasm F, Bell R, Al-Jayyousi R, Warwick G, Grall A, Treguer L, Essig M, Lecaque C, Noel N, Buchler M, Bertrand D, Rivalan J, Braun L, Villemain F, Hurault de Ligny B, Totet A, Pestourie N, Toubas D, Nevez G, Le Meur Y, Nour el Houda B, Mustapha H, Wafaa F, Inass L, Rambabova Bushljetikj I, Rambabova Bushljetikj I, Masin-Spasovska J, Spasovski G, Popov Z, Sikole A, Ivanovski N, Raimundo M, Guerra J, Teixeira C, Santana A, Silva S, Mil Homens C, Gomes Da Costa A, Loredo D, Cleres M, Gondolesi G, Gutierrez LM, Fortunato RM, Descalzi V, Raffaele P. Transplantation - clinical II. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mai W, Hu X, Lu Z, Peng F, Wang Y. Cerebrospinal Fluid Levels of Soluble Amyloid Precursor Protein and β-Amyloid 42 in Patients with Multiple Sclerosis, Neuromyelitis Optica and Clinically Isolated Syndrome. J Int Med Res 2011; 39:2402-13. [PMID: 22289560 DOI: 10.1177/147323001103900641] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Amyloid precursor protein (APP) accumulation in axonal ovoids is a sensitive marker for acute axonal injury in multiple sclerosis (MS) lesions. This study measured levels of α-cleaved soluble APP (αsAPP) and β-amyloid 42 (Aβ42) in the cerebrospinal fluid (CSF) of 42 MS, 10 neuromyelitis optica and 25 clinically isolated syndrome patients and 21 healthy controls, and analysed the correlation between αsAPP and Aβ42 levels and relevant clinical parameters. The CSF concentrations of αsAPP and Aβ42 in patients and controls were not significantly different. There was a significant inverse correlation in patients between CSF asAPP concentration and the Expanded Disability Status Scale (EDSS), but no significant correlation between CSF Aβ42 concentration and EDSS. The concentration of αsAPP in the CSF of statin-treated patients was significantly higher than in those not treated with statins, suggesting that statins may have a neuroprotective effect. In conclusion, αsAPP was present at similar levels in the CSF of patients with neuromyelitis optica, MS and clinically isolated syndrome and healthy controls, and an inverse correlation existed between CSF αsAPP concentration and neurological disability.
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Affiliation(s)
- W Mai
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - X Hu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Z Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - F Peng
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Y Wang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Huang H, Mai W, Liu D, Dong Y. Oxidised low-density lipoprotein cholesterol and their ratio in the diagnosis and treatment of coronary heart disease. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Guillem Gallach R, Suran J, Cáceres AV, Reetz JA, Brown DC, Mai W. Reliability of T2-weighted sagittal magnetic resonance images for determining the location of compressive disk herniation in dogs. Vet Radiol Ultrasound 2011; 52:479-86. [PMID: 21689199 DOI: 10.1111/j.1740-8261.2011.01833.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Magnetic resonance imaging is used commonly to diagnose intervertebral disk herniation in dogs. It is common to locate areas of suspected compression on sagittal T2-weighted (T2-W) images and then obtain limited transverse images in these areas to reduce the acquisition time (a step-by-step approach). Our objective was to assess the frequency of correct localization of spinal cord compression due to disk herniation using only the sagittal images. The results from isolated readings of the sagittal T2-W images alone or combined with a single-shot fast spin echo (SSFSE) slab in 118 dogs were compared with a gold standard, based on a consensual reading of all images available, including complete transverse images across the entire spinal segments under study. The sites of compression were localized correctly from the sagittal images in 89.8% of dogs. If only the most significant lesions were accounted for, the percentage increased up to 95.2%. In 54.9% of the readings with incorrect localization, the actual compressive site was immediately adjacent to the one suspected from review of the sagittal images. The frequency of correct localization was higher in the cervical region, and was increased by examination of the SSFSE slab. The most common cause of disagreement was the presence of multiple degenerate bulging disks. Based on these results we recommend obtaining transverse images across the entire segment when multiple bulging disks are present. It is also recommended to obtain transverse images across the spaces immediately adjacent to the suspected site of herniation from review of the sagittal images.
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Affiliation(s)
- R Guillem Gallach
- School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
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Macmillan S, Maus S, Bondar T, Chambodut A, Golovkov V, Holme R, Langlais B, Lesur V, Lowes F, Lühr H, Mai W, Mandea M, Olsen N, Rother M, Sabaka T, Thomson A, Wardinski I. Ninth generation international geomagnetic reference field released. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2003eo460004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Mai W, Blanco A, Smiedala M, Paulino A, Ishiyama H, Xu B, Butler E, Teh B. Long-term Outcome of a Moderate-Hypofractionated Intensity Modulated Radiation Therapy (IMRT) Approach Utilizing an Endorectal Balloon for Patients with Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wang X, Gao Y, Fu X, Zhu J, Mai W, Tao L, Huang Y, Butler E, Zhang X, Teh B. Combined Radiotherapy and FusOn-H2 Virotherapy for Pulmonary Adenocarcinoma. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gao Y, Wang X, Zhu J, Mai W, Huang Y, Floryk D, Ittmann M, Thompson T, Butler E, Teh B. Combined Perifosine (PI3K/AKT Inhibitor) and Radiotherapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
An artefact was observed on postcontrast magnetic resonance imaging (mri) of the urinary bladder of several small animals; it took the form of a dark layer in the dependent (dorsal) part of the bladder, with a thin hyperintense layer on top of it, and a hypointense signal in the rest of the non-dependent (ventral) part. The mri database was searched for animals with T1-weighted images of the urinary bladder after the injection of gadolinium. Eighteen dogs and three cats were included in the study. The artefact was observed in 16 of the animals on the postcontrast images but not on the T1-weighted and T2-weighted precontrast images. A phantom experiment showed that the signal intensity observed on T1-weighted images decreased rapidly as the concentration of gadolinium increased from 6.25 mmol/l to 25 mmol/l. It is hypothesised that the early excretion of concentrated gadolinium into the bladder causes the pseudolayering artefact observed, which has also been reported in human patients.
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Affiliation(s)
- W Mai
- Department of Clinical Studies, Section of Radiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA 19104-6101, USA
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Teh B, Mai W, McGary J, Smiedala M, Paulino A, Grant W, Butler E. Long-Term Outcome of a Moderate-Hypofractionated Intensity Modulated Radiation Therapy (IMRT) (77GY at 2.2GY per Fraction) Approach Utilizing Immobilization Rectal Balloon for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2007. [DOI: 10.1016/j.ijrobp.2007.07.1410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Teh B, Mai W, Caillouet J, Aguilar G, Aguilar-Cordova E, Butler E. 2188. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shahar Cohen K, Teh B, Mai W, Paulino A, Miles B, Kadmon D, Butler E. 1004. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Aguilar LK, Teh B, Mai W, Caillouet J, Ayala G, Aguilar-Cordova E, Butler E. Five year follow up of a phase II study of cytotoxic immunotherapy combined with radiation in newly diagnosed prostate cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.4635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4635 Background: In the U.S. there are about 70,000 annual prostate cancer recurrences. The purpose of this study is to evaluate a product to decrease incidence of recurrence. This study is based on objective clinical responses in Phase I studies with AdV-tk (ProstAtak™, Advantagene, Inc) as monotherapy in recurrent disease and preclinical data demonstrating synergy between AdV-tk and radiation. AdV-tk is an adenoviral vector expressing the herpes thymidine kinase gene delivered to the prostate via TRUS-guided injection followed by 14 days of oral prodrug. The mechanisms of function involve direct tumor cytotoxicity, local elicitation of danger signals, recruitment and activation of antigen presenting cells and stimulation of systemic anti-tumor T-cell immunity. Method: AdV-tk was evaluated in combination with radiation in 66 newly diagnosed patients: 33 low risk (Arm A, PSA <10, Gleason <7, and T1c-T2a) and 33 intermediate-high risk (Arm B, PSA ≥10, Gleason ≥7, or T2b-T3). Arm A received two treatments with AdV-tk, immediately before and 14 days into radiation. Arm B received an additional treatment at initiation of androgen deprivation therapy. Results: Two surrogate and one definitive end-point were evaluated. Frequency of patients in Arm A with PSA nadir ≤0.2 ng/ml was 71% vs 56% in a control group of concurrent patients without AdV-tk. The two-year pathologic complete response (pCR) rate by sextant biopsy was 90% in Arm A and 94% in Arm B, compared to an expected range of 70–73%. Freedom from failure (FFF) after 60 month median follow up is 100% for Arm A and 90% for Arm B (95% for intermediate, 75% for high risk) vs best reported results of 79–90% for low risk and 48–79% for intermediate-high risk patients. The three failures in Arm B occurred within months after treatment leading to a Kaplan-Meier curve that plateaus at 90% beyond year 3. This is notably different than previous reports in which the curves continue to drop beyond year 5. Conclusion: These results suggest that AdV-tk combined with radiation therapy may significantly reduce the recurrence rate in patients with prostate cancer, particularly in patients with intermediate-high risk disease. A randomized controlled trial is warranted. [Table: see text]
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Affiliation(s)
- L. K. Aguilar
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - B. Teh
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - W. Mai
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - J. Caillouet
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - G. Ayala
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - E. Aguilar-Cordova
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
| | - E. Butler
- Advantagene, Inc., Waban, MA; Methodist Hospital, Houston, TX; Baylor College of Medicine, Houston, TX
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Hayman L, Teh B, Shukla V, Mai W, Paulino A, Butler E. Visual and Textual Evaluation of the Three Nodal Classifications for Head and Neck Cancer (Rotterdam Consensus, Richter, Martinez-Monge). Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Paulino A, Nguyen T, Mai W, Teh B, Wen B. Local Control Using Radiotherapy for Non-Metastatic Ewing’s Sarcoma: Is There a Dose Response? Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Mai W, Barraud L, Lefrancois L, Scoazec JY, Guerret S, Vray D, Merle P, Vitvitski-Trepo L, Trepo C, Janier MF. Ultrasound detection of spontaneous hepato-cellular carcinomas in X/myc bitransgenic mice. Liver Int 2004; 24:651-7. [PMID: 15566518 DOI: 10.1111/j.1478-3231.2004.0955.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
AIMS To evaluate trans-abdominal ultrasound for the detection of Hepatocellular carcinoma (HCC) in a bitrasgenic murine (X/myc) model using a commercially available high-frequency ultrasound unit. METHODS Sixty-one female animals were included in this study. These animals were submitted to a single ultrasound examination of the liver under general anesthesia (isoflurane), and then euthanized. Results of ultrasound were compared with necropsy and histopathology. RESULTS The lesions demonstrated a fairly consistent aspect (oval- or round-shaped, well-defined hypoechoic homogeneous lesions), and lesions as small as 2 mm were identified. For detection of hepatic nodules per mouse the sensitivity was 75%, the specificity was 100% and the accuracy was 88.5%. For detection of hepatic focal lesions per lesions the overall sensitivity was 60%, the specificity was 97%, and the accuracy was 75.9%. Contrast-enhanced harmonic ultrasound imaging did not improve the identification of the lesions in our experimental conditions. CONCLUSION High-frequency ultrasound appears to be an efficient tool allowing new possibilities to use this animal model and evaluate new therapies in longitudinal studies, which are much more powerful.
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Affiliation(s)
- W Mai
- ANIMAGE - Rhone-Alpes Genopole, Batiment CERMEP, Lyon, France
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Shahar K, McGary J, Mai W, Caillouet J, Butler E, Teh B. Retrospective analysis of late rectal bleeding in prostate cancer patients treated with intensity modulated radiotherapy (IMRT). Int J Radiat Oncol Biol Phys 2004. [DOI: 10.1016/j.ijrobp.2004.07.369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Teh B, Aguilar-Cordova E, Aguilar L, Mai W, Caillouet J, Davis M, Vlachaki M, Kadmon D, Miles B, Ayala G, Thompson T, Butler E. Late toxicity of a phase I/II trial evaluating combined radiotherapy and in-situ gene-therapy with or without hormonal therapy in the treatment of prostate cancer. Int J Radiat Oncol Biol Phys 2003. [DOI: 10.1016/s0360-3016(03)01121-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sinopoli M, Teh B, Mai W, Van T, Chiu J, Carpenter L, Lu H, Woo S, Grant W, Butler E. Analysis of biochemical control following definitive intensity-modulated radiation therapy (IMRT) alone with endorectal balloon immobilization and dose escalation for localized prostate cancer. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03537-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Takefumi S, Teh B, Mai W, Godor Y, Vlachaki M, Ayala G, Wheeler T, Miles B, Kadmon D, Thompson T, Butler E. Systemic T-cell activation following in situ gene therapy in prostate cancer patients. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03294-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Teh B, Ayala G, Mai W, Vlachaki M, Caillouet J, Davis M, Wheeler M, Wheeler T, Miles B, Kadmon D, Aguilar-Cordova L, Woo S, Carpenter L, Chiu J, Lu H, Thompson T, Aguilar-Cordova E, Butler E. Phase I/II trial evaluating combined radiotherapy and in-situ gene therapy with or without hormonal therapy in the treatment of prostate cancer-an interim report on PSA response and biopsy data. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03295-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mai W, Bastasch M, Teh B, Butler E, Wheeler T. Detailed assessment of the radial distance of extracapsular extension (ECE) from 712 radical prostatectomy specimens: implications for treatment planning margins for brachytherapy and conformal radiotherapy. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03499-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Amosson C, Teh B, Van T, Uy N, Huang E, Mai W, Woo S, Chiu J, Carpenter L, Lu H, Grant W, Butler E. SMART (simultaneous modulated accelerated radiation therapy) boost technique-correlation of subjective xerostomia and dosimetric parameters of the parotid glands. Int J Radiat Oncol Biol Phys 2002. [DOI: 10.1016/s0360-3016(02)03088-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hu Y, Lu T, Mai W, Han F, Huang Y, Liu H, Zhang E. [Important prognostic factors in patients with skull base erosion from nasopharyngeal carcinoma after radiotherapy]. Zhonghua Er Bi Yan Hou Ke Za Zhi 2001; 36:463-7. [PMID: 12761966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Abstract
OBJECTIVE To evaluate the long-term outcome and prognostic factors in patients with skull base erosion from nasopharyngeal carcinoma (NPC) after initial radiation therapy. METHODS From January 1985 to December 1986, 100 patients (71 male, 29 female) with the diagnosis of NPC were found to have skull base erosion from computed tomography (CT). The mean age was 41 (16-66) years. Ninety-six patients had World Health Organization (WHO) type III undifferentiated carcinoma while four had type I carcinomas. Metastatic workup including chest radiography, liver ultrasound and liver function test were negative. All patients underwent external beam radiotherapy alone to 66-80 Gy over 6-8 weeks. Daily fraction size of 2 Gy was delivered utilizing cobalt-60 or linear accelerator. No patient received chemotherapy. All patients were followed up at regular intervals after irradiation. Median follow-up was 22.3 months (2 months-174 months). Overall survival of the cohort was computed by the Kaplan-Meier method. Potential prognostic factors on survival were examined. Multivariate analyses was performed using Cox regression model. RESULTS One, three, five, and ten year overall survival rates for the cohort were 79%, 38%, 27% and 13%, respectively. However, in the sub-group of patients with both anterior cranial nerves (I-VIII) and posterior cranial nerve (IX-XII) involvement had a five-year survival of only 7.7%. Causes of death included local recurrence (59 patients), distant metastases (21 patients), both local recurrence and distant metastases (1 patient) and unrelated causes (5 patients). After multivariate analysis, complete recovery of cranial nerve involvement, cranial nerves palsy and recovery of headache after irradiation were found to be independent prognostic factors in this cohort. CONCLUSION This report presents one of the longest follow-ups of patients with nasopharyngeal carcinoma invading skill base. It demonstrates the importance of cranial nerves involvement as well as recovery of headache and cranial nerve palsy. These factors should be evaluated carefully from history and physical examination as well as imaging studies. Currently available magnetic resonance imaging (MRI) is highly recommended as an additional test. A subgroup of patients with skull base involvement had long-term survival after radiotherapy alone. More aggressive strategy such as combined chemo-radiotherapy and altered fractionation radiotherapy may improve outcome in patients with poor prognostic factors.
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Affiliation(s)
- Y Hu
- Department of Radiation Oncology, Cancer Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
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