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Liu R, Yu ZC, Xiao CX, Xiao SF, He J, Shi Y, Hua YY, Zhou JM, Zhang GY, Wang T, Jiang JY, Xiong DX, Chen Y, Xu HB, Yun H, Sun H, Pan TT, Wang R, Zhu SM, Huang D, Liu YJ, Hu YH, Ren XR, Shi MF, Song SZ, Luo JM, Liu J, Zhang J, Xu F. [Different methods in predicting mortality of pediatric intensive care units sepsis in Southwest China]. Zhonghua Er Ke Za Zhi 2024; 62:204-210. [PMID: 38378280 DOI: 10.3760/cma.j.cn112140-20231013-00282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Objective: To investigate the value of systemic inflammatory response syndrome (SIRS), pediatric sequential organ failure assessment (pSOFA) and pediatric critical illness score (PCIS) in predicting mortality of pediatric sepsis in pediatric intensive care units (PICU) from Southwest China. Methods: This was a prospective multicenter observational study. A total of 447 children with sepsis admitted to 12 PICU in Southwest China from April 2022 to March 2023 were enrolled. Based on the prognosis, the patients were divided into survival group and non-survival group. The physiological parameters of SIRS, pSOFA and PCIS were recorded and scored within 24 h after PICU admission. The general clinical data and some laboratory results were recorded. The area under the curve (AUC) of the receiver operating characteristic curve was used to compare the predictive value of SIRS, pSOFA and PCIS in mortality of pediatric sepsis. Results: Amongst 447 children with sepsis, 260 patients were male and 187 patients were female, aged 2.5 (0.8, 7.0) years, 405 patients were in the survival group and 42 patients were in the non-survival group. 418 patients (93.5%) met the criteria of SIRS, and 440 patients (98.4%) met the criteria of pSOFA≥2. There was no significant difference in the number of items meeting the SIRS criteria between the survival group and the non-survival group (3(2, 4) vs. 3(3, 4) points, Z=1.30, P=0.192). The pSOFA score of the non-survival group was significantly higher than that of the survival group (9(6, 12) vs. 4(3, 7) points, Z=6.56, P<0.001), and the PCIS score was significantly lower than that of the survival group (72(68, 81) vs. 82(76, 88) points, Z=5.90, P<0.001). The predictive value of pSOFA (AUC=0.82) and PCIS (AUC=0.78) for sepsis mortality was significantly higher than that of SIRS (AUC=0.56) (Z=6.59, 4.23, both P<0.001). There was no significant difference between pSOFA and PCIS (Z=1.35, P=0.176). Platelet count, procalcitonin, lactic acid, albumin, creatinine, total bilirubin, activated partial thromboplastin time, prothrombin time and international normalized ratio were all able to predict mortality of sepsis to a certain degree (AUC=0.64, 0.68, 0.80, 0.64, 0.68, 0.60, 0.77, 0.75, 0.76, all P<0.05). Conclusion: Compared with SIRS, both pSOFA and PCIS had better predictive value in the mortality of pediatric sepsis in PICU.
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Affiliation(s)
- R Liu
- Department of Pediatric Critical Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Chongqing 400014, China
| | - Z C Yu
- Department of Pediatric Critical Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Chongqing 400014, China
| | - C X Xiao
- Department of Pediatric Critical Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Chongqing 400014, China
| | - S F Xiao
- Department of Pediatric Critical Care, Kunming Children's Hospital, Kunming 650103, China
| | - J He
- Department of Pediatric Critical Care, Kunming Children's Hospital, Kunming 650103, China
| | - Y Shi
- Department of Pediatric Critical Care, the First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang 615099, China
| | - Y Y Hua
- Department of Pediatric Critical Care, the First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang 615099, China
| | - J M Zhou
- Department of Pediatric Critical Care, the First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang 615099, China
| | - G Y Zhang
- Department of Pediatric Critical Care, Chengdu Women's and Children's Central Hospital, Chengdu 610073, China
| | - T Wang
- Department of Pediatric Critical Care, Chengdu Women's and Children's Central Hospital, Chengdu 610073, China
| | - J Y Jiang
- Department of Pediatric Critical Care, Chongqing University Three Gorges Hospital, Chongqing 400030, China
| | - D X Xiong
- Department of Pediatric Critical Care, Chongqing University Three Gorges Hospital, Chongqing 400030, China
| | - Y Chen
- Department of Pediatric Critical Care, Guizhou Provincial Children's Hospital, Zunyi 563099, China
| | - H B Xu
- Department of Pediatric Critical Care, Guizhou Provincial Children's Hospital, Zunyi 563099, China
| | - H Yun
- Department of Pediatric Critical Care, Guizhou Provincial Children's Hospital, Zunyi 563099, China
| | - H Sun
- Department of Pediatric Critical Care, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - T T Pan
- Department of Pediatric Critical Care, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - R Wang
- Department of Pediatric Critical Care, Yuxi Children's Hospital, Yuxi 653199, China
| | - S M Zhu
- Department of Pediatric Critical Care, Yuxi Children's Hospital, Yuxi 653199, China
| | - D Huang
- Department of Pediatric Critical Care, Guizhou Provincial People's Hospital, Guiyang 550499, China
| | - Y J Liu
- Department of Pediatric Critical Care, Guizhou Provincial People's Hospital, Guiyang 550499, China
| | - Y H Hu
- Department of Pediatric Critical Care, Sichuan Provincial Maternity and Child Health Hospital, Chengdu 610045, China
| | - X R Ren
- Department of Pediatric Critical Care, Sichuan Provincial Maternity and Child Health Hospital, Chengdu 610045, China
| | - M F Shi
- Department of Pediatric Critical Care, the First People's Hospital of Yibin, Yibin 644099, China
| | - S Z Song
- Department of Pediatric Critical Care, the First People's Hospital of Yibin, Yibin 644099, China
| | - J M Luo
- Department of Pediatric Critical Care, the First People's Hospital of Yibin, Yibin 644099, China
| | - J Liu
- Department of Pediatric Critical Care, Nanchong Central Hospital, Nanchong 637003, China
| | - J Zhang
- Department of Pediatric Critical Care, Nanchong Central Hospital, Nanchong 637003, China
| | - F Xu
- Department of Pediatric Critical Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, Chongqing 400014, China
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Lu F, Yao LP, Gao DD, Alinejad T, Jiang XQ, Wu Q, Zhai QC, Liu M, Zhu SM, Qian MX, Xu LF, Chen CS, Zhang F. MicroRNA-377-3p exacerbates chronic obstructive pulmonary disease through suppressing ZFP36L1 expression and inducing lung fibroblast senescence. Respir Res 2024; 25:67. [PMID: 38317146 PMCID: PMC10840170 DOI: 10.1186/s12931-024-02696-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 01/21/2024] [Indexed: 02/07/2024] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a leading aging related cause of global mortality. Small airway narrowing is recognized as an early and significant factor for COPD development. Senescent fibroblasts were observed to accumulate in lung of COPD patients and promote COPD progression through aberrant extracellular matrix (ECM) deposition and senescence-associated secretory phenotype (SASP). On the basis of our previous study, we further investigated the the causes for the increased levels of miR-377-3p in the blood of COPD patients, as well as its regulatory function in the pathological progression of COPD. We found that the majority of up-regulated miR-377-3p was localized in lung fibroblasts. Inhibition of miR-377-3p improved chronic smoking-induced COPD in mice. Mechanistically, miR-377-3p promoted senescence of lung fibroblasts, while knockdown of miR-377-3p attenuated bleomycin-induced senescence in lung fibroblasts. We also identified ZFP36L1 as a direct target for miR-377-3p that likely mediated its pro senescence activity in lung fibroblasts. Our data reveal that miR-377-3p is crucial for COPD pathogenesis, and may serve as a potential target for COPD therapy.
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Affiliation(s)
- Fang Lu
- Department of Respiratory and Critical Care, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Li-Peng Yao
- Wenzhou Medical University, Wenzhou, 325035, China
- Ningbo College of Health Sciences, Ningbo, 315000, China
| | - Dan-Dan Gao
- Wenzhou Medical University, Wenzhou, 325035, China
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Tahereh Alinejad
- The Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, Centre of Precision Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision, and Brain Health), School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325015, China
| | - Xin-Qing Jiang
- Zhejiang Chinese Medical University the 2 nd Clinical Medical College, Hangzhou, 310053, China
| | - Qi Wu
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Qiao-Cheng Zhai
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Ming Liu
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Sheng-Mei Zhu
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
| | - Mao-Xiang Qian
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China
- Institute of Pediatrics, Department of Hematology and Oncology, Institutes of Biomedical Sciences, National Children's Medical Center, Children's Hospital of Fudan University, Fudan University, Shanghai, 200032, China
| | - Li-Feng Xu
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China.
| | - Cheng-Shui Chen
- Department of Respiratory and Critical Care, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China.
- The Key Laboratory of Interventional Pulmonology of Zhejiang Province, Department of Pulmonary and Critical Care Medicine, Centre of Precision Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China.
| | - Feng Zhang
- Joint Innovation Center for Engineering in Medicine, Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou, 324000, China.
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Zhao KM, Hu JS, Zhu SM, Wen TT, Fang XM. Persistent postoperative hypotension caused by subclinical empty sella syndrome after a simple surgery: A case report. World J Clin Cases 2023; 11:5817-5822. [PMID: 37727724 PMCID: PMC10506010 DOI: 10.12998/wjcc.v11.i24.5817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/10/2023] [Accepted: 08/01/2023] [Indexed: 08/24/2023] Open
Abstract
BACKGROUND Empty sella is an anatomical and radiological finding of the herniation of the subarachnoid space into the pituitary fossa leading to a flattened pituitary gland. Patients with empty sella may present with various symptoms, including headache due to intracranial hypertension and endocrine symptoms related to the specific pituitary hormones affected. Here, we report a female patient who developed persistent postoperative hypotension caused by subclinical empty sella syndrome after a simple surgery. CASE SUMMARY A 47-year-old woman underwent vocal cord polypectomy under general anesthesia with endotracheal intubation. She denied any medical history, and her vital signs were normal before the surgery. Anesthesia and surgery were uneventful. However, she developed dizziness, headache and persistent hypotension in the ward. Thus, intravenous dopamine was started to maintain normal blood pressure, which improved her symptoms. However, she remained dependent on dopamine for over 24 h without any obvious anesthesia- and surgery-related complications. An endocrine etiology was then suspected, and further examination showed a high prolactin level, a low normal adrenocorticotropic hormone level and a low cortisol level. Magnetic resonance imaging of the brain revealed an empty sella. Therefore, she was diagnosed with empty sella syndrome and secondary adrenal insufficiency. Her symptoms disappeared one week later after daily glucocorticoid supplement. CONCLUSION Endocrine etiologies such as pituitary and adrenal-related dysfunction should be considered in patients showing persistent postoperative hypotension when anesthesia- and surgery-related factors are excluded.
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Affiliation(s)
- Kang-Mei Zhao
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Jia-Sheng Hu
- Department of Anesthesiology, Sanmen People’s Hospital, Sanmen 317100, Zhejiang Province, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Ting-Ting Wen
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
| | - Xiang-Ming Fang
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang Province, China
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Cai HL, Du ZC, Wang Y, Zhu SM, Li JH, Zhang WJ, Gu J, Hao YT. [Association between physical exercise and non-alcoholic fatty liver disease in people infected with hepatitis B virus]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:445-451. [PMID: 36942340 DOI: 10.3760/cma.j.cn112338-20220907-00769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To investigate the association between physical exercise and non-alcoholic fatty liver disease (NAFLD) in people infected with HBV. Methods: The information about the 3 813 participants infected with HBV, including the prevalence of NAFLD, prevalence of physical exercise and other covariates, were collected from the National Science and Technology Major Project of China during 2016-2020. The logistic regression model was used to evaluate the association between physical exercise and NAFLD in HBV infected patients, and subgroup analysis was performed to identify the effect modifiers. Results: A total of 2 259 HBV infected participants were included in the final analysis and 454 (20.10%) had NAFLD. After adjusting for covariates, we found that moderate physical exercise was a protective factor for NAFLD (OR=0.66, 95%CI: 0.46-0.94). Subgroup analysis suggested that the protective effect of moderate physical exercise on NAFLD might be stronger in women (OR=0.61, 95%CI: 0.36-1.01), those <45 years old (OR=0.24, 95%CI: 0.06-0.80), those who had low education level (OR=0.16, 95%CI: 0.04-0.49), those who had low annual income (OR=0.39, 95%CI: 0.16-0.89 for <30 000 yuan RMB; OR=0.64, 95%CI: 0.40-1.00 for 30 000-80 000 yuan RMB), those who had hypertension (OR=0.45, 95%CI: 0.21-0.88), those with BMI ≥24.0 kg/m2 (OR=0.66, 95%CI: 0.43-1.01), those who had more daily fruit or vegetable intake (OR=0.61, 95%CI: 0.38-0.97), those who had more daily meat intake (OR=0.49, 95%CI: 0.23-0.97), and those who had no smoking history (OR=0.66, 95%CI: 0.45-0.95) or passive smoking exposure (OR=0.61, 95%CI: 0.37-0.97). Conclusions: Among HBV infected patients, moderate physical exercise was negatively associated with the prevalence of NAFLD. Women, young people, those who had low education level, those who had low annual income, those with hypertension, those with high BMI, those who had more daily fruit or vegetable and meat intakes, and those who had no smoking history or passive smoking exposure might be more sensitive to the protective effect.
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Affiliation(s)
- H L Cai
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - Z C Du
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Wang
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - S M Zhu
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - J H Li
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - W J Zhang
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - J Gu
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China
| | - Y T Hao
- Department of Medical Statistics, School of Public Health, Global Health Institute, Center for Health Information Research, Sun Yat-sen University, Guangzhou 510080, China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191, China
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Guo JG, Rao YF, Jiang J, Li X, Zhu SM. MicroRNA-155-5p inhibition alleviates irritable bowel syndrome by increasing claudin-1 and ZO-1 expression. Ann Transl Med 2023; 11:34. [PMID: 36819593 PMCID: PMC9929797 DOI: 10.21037/atm-22-4859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/15/2022] [Indexed: 12/24/2022]
Abstract
Background Irritable bowel syndrome (IBS) is a common gastrointestinal disease. Emerging studies have demonstrated that microRNAs (miRNAs) are commonly dysregulated in patients with IBS, and aberrant miRNAs are implicated in IBS occurrence. Although miR-155-5p participates in inflammatory bowel disease (IBD) and intestinal barrier dysfunction, the role of miR-155-5p in IBS is unclear. Methods In the present study, colon samples were obtained from IBS patients and IBS mice induced by trinitrobenzenesulfonic acid (TNBS), and the levels of miR-155-5p, claudin-1 (CLDN1), and zonula occludens-1 (ZO-1) were assessed using quantitative real-time polymerase chain reaction (qRT-PCR) and immunohistochemical analysis. The regulatory role of miR-155-5p in CLDN1 and ZO-1 expression was validated using dual luciferase reporter assay. Results We found that miR-155-5p levels were upregulated in colon samples of IBS patients and mice compared with healthy subjects and normal mice, respectively. Meanwhile, the levels of CLDN1 and ZO-1 were decreased in colon samples of IBS patients and mice. Importantly, forced expression of miR-155-5p inhibited CLDN1 and ZO-1 expression. In IBS mice, intraperitoneal injection with miR-155-5p inhibitor increased CLDN1 and ZO-1 expression in intestinal mucosal epithelium, enhanced visceral response thresholds, and decreased myeloperoxidase (MPO) activity. Conclusions In summary, these results suggested that miR-155-5p participated in the pathogenesis of IBS, at least in part by inhibiting CLDN1 and ZO-1 expression, indicating that miR-155-5p may be a potential therapeutic target for IBS.
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Affiliation(s)
- Jian-Guo Guo
- Department of Pain Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yue-Feng Rao
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Jiang
- Hangzhou Dunen Medical Laboratory Co., Ltd., Hangzhou, China
| | - Xin Li
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Chen Y, Ge XH, Yu Q, Wang Y, Zhu SM, Yuan JN, Zong W. Prediction Model for Urinary Tract Infection in Pediatric Urological Surgery Patients. Front Public Health 2022; 10:888089. [PMID: 35812501 PMCID: PMC9256918 DOI: 10.3389/fpubh.2022.888089] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/27/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundUrinary tract infection (UTI) is a common complication in pediatric urological surgery patients and is associated with long-term sequelae, including subsequent recurrent infections and renal scarring. In this study, we aimed to explore the risk factors for UTI in pediatric urological surgery patients and construct a predictive model for UTI.Materials and MethodsA total of 2,235 pediatric patients who underwent urological surgery at a tertiary hospital between February 2019 and January 2020 were included. A multivariate logistic regression model was applied to identify the predictive factors, and a predictive model was constructed using a receiver operating characteristic curve. A multifactorial predictive model was used to categorize the risk of UTI based on the weight of the evidence.ResultsA total of 341 patients with UTI were identified, which corresponded to a prevalence of 15.26% in pediatric urological surgery patients. Multivariate analysis identified six significant risk factors for UTI, including age <12.0 months, upper urinary tract disease, not using an indwelling drainage tube, hospital stay ≥10 days, administration of two or more types of antibiotics, and stent implantation. A combination of the aforementioned factors produced an area under the curve value of 88.37% for preventing UTI in pediatric urological surgery patients. A multifactorial predictive model was created based on the combination of these factors.ConclusionsThe constructed multifactorial model could predict UTI risk in pediatric urological surgery patients with a relatively high predictive value.
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Affiliation(s)
- Yi Chen
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao-Hua Ge
- Department of Nursing, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Xiao-Hua Ge
| | - Qun Yu
- Department of Nursing, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Wang
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sheng-Mei Zhu
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia-Ni Yuan
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wen Zong
- Department of Pediatric Urology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Guo SH, Li A, Yin PF, Zhu SM, Yao YX. Anesthetic management of lung transplantation in a patient with end-stage COVID-19 pneumonia: A case report. Medicine (Baltimore) 2021; 100:e26468. [PMID: 34160453 PMCID: PMC8238350 DOI: 10.1097/md.0000000000026468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 06/07/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE The COVID-19 pandemic is spreading around the world and the leading cause of death is rapidly progressive respiratory failure because of lung damage and consolidation. Lung transplantation is the last line of treatment for chronic end-stage lung diseases. There were several cases of lung transplantation reported in patients with COVID-19 pneumonia. However, anesthetic management of lung transplantation in this subpopulation is rare. We report the anesthetic and perioperative management of lung transplantation in a patient with COVID-19 pneumonia. PATIENT CONCERNS A 70-year-old man with a 7-day history of fever was diagnosed with COVID-19 pneumonia. His throat swab was positive for COVID-19, but negative for other common viruses. Chest radiography showed multiple inflammatory foci in both lungs. By day 5, he presented respiratory distress. Computed tomography (CT) scan showed progressive deterioration of both lungs. Starting on day 7, SARS-CoV-2 RNA in bronchoalveolar lavage samples were continuously negative. However, his lung condition deteriorated. By day 17, a veno-venous extracorporeal membrane oxygenation (ECMO) was initiated. After 10 days of ECMO support, the patient's lung condition did not improve. CT scan revealed bilateral parenchymal consolidation with pulmonary fibrosis and hydrothorax. DIAGNOSIS Irreversible lung function loss induced by COVID-19 pneumonia. INTERVENTIONS Bilateral transplantation was performed because the patient's lung condition did not improve and CT scan revealed parenchymal consolidation with pulmonary fibrosis after 10 days of ECMO support. Thirty-six hours after the surgery, ECMO was discontinued. A percutaneous transluminal coronary angioplasty and a stent implantation were performed because of acute coronary syndrome and myocardial ischemia 4 days postoperatively. OUTCOMES The patient remained hospitalized because of requirements for intermittent assisted ventilation via tracheostomy. LESSONS This case further supports the consideration that lung transplantation can potentially be the successful therapy for these patients who have developed irreversible lung function lose due to COVID-19 pneumonia. However, most critical patients with COVID-19 are older individuals with various comorbidities, which present new anesthetic challenges.
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Wang LQ, Zheng YY, Zhou HJ, Zhang XX, Wu P, Zhu SM. LncRNA-Fendrr protects against the ubiquitination and degradation of NLRC4 protein through HERC2 to regulate the pyroptosis of microglia. Mol Med 2021; 27:39. [PMID: 33858325 PMCID: PMC8048261 DOI: 10.1186/s10020-021-00299-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 04/05/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES Targeted inhibition of inflammatory response can reduce diabetic cerebral ischemia-reperfusion (I/R) injure. Pyroptosis is characterized by caspase-1 dependence and the release of a large number of pro-inflammatory factors. LncRNA-Fendrr is associated with a variety of diseases, but Fendrr has not been studied in diabetic cerebral I/R. NLR-family CARD-containing protein 4 (NLRC4) regulate the pyroptosis of microglia cells. This study was designed to investigate whether Fendrr is involved in the effects of diabetic cerebral I/R injury. METHODS The diabetic brain I/R model in mice was constructed. Mouse microglia cell line BV-2 cells were exposed to high glucose followed by hypoxia/reoxygenation (H/R). Fendrr and some pyroptosis-associated proteins were detected by qRT-PCR, western blot or ELISA. HE staining was used to detect pathological changes. Microglia pyroptosis was detected by TUNEL staining. RNA pull-down and RNA Immunoprecipitation were used to detect binding of Fendrr to HERC2 (E3 ubiquitin ligase), and CO-IP detected binding of HERC2 to NLRC4. The ubiquitination of NLRC4 was detected by ubiquitination experiments. RESULTS Fendrr was significantly increased in the diabetic cerebral I/R model, and NLRC4 inflammatory complex and pyroptosis mediated inflammatory factors were increased. NLRC4 and inflammatory cytokines associated with pyroptosis were decreased in the high glucose-treated hypoxia/reoxygenation (H/R)-induced microglia after Fendrr knockdown. Fendrr bound to HERC2 protein, and HERC2 bound to NLRC4. Meanwhile, Fendrr could inhibit the ubiquitination of NLRC4, HERC2 promoted the ubiquitination of NLRC4 protein. Moreover, the effect of Fendrr overexpression in the diabetic cerebral I/R model of microglia can be reversed by HERC2 overexpression. CONCLUSION Fendrr can protect against the ubiquitination and degradation of NLRC4 protein through E3 ubiquitin ligase HERC2, thereby accelerating the pyroptosis of microglia.
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Affiliation(s)
- Li-Qing Wang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Yue-Ying Zheng
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Heng-Jun Zhou
- Department of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, People's Republic of China
| | - Xiong-Xin Zhang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Pin Wu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, People's Republic of China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, People's Republic of China.
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9
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Guo SH, Zhu SM, Yao YX. Giant Retroperitoneal Hematoma During Extracorporeal Membrane Oxygenation in a Patient With Coronavirus Disease-2019 Pneumonia. J Cardiothorac Vasc Anesth 2020; 34:2839-2840. [PMID: 32600997 PMCID: PMC7267793 DOI: 10.1053/j.jvca.2020.05.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/24/2020] [Accepted: 05/24/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Shao-Hui Guo
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Sheng-Mei Zhu
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China
| | - Yong-Xing Yao
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China.
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10
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Li HL, Huang Y, Zhou YL, Teng RH, Zhou SZ, Lin JP, Yang Y, Zhu SM, Xu H, Yao YX. C-X-C Motif Chemokine 10 Contributes to the Development of Neuropathic Pain by Increasing the Permeability of the Blood-Spinal Cord Barrier. Front Immunol 2020; 11:477. [PMID: 32265928 PMCID: PMC7098954 DOI: 10.3389/fimmu.2020.00477] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 07/04/2019] [Accepted: 03/02/2020] [Indexed: 01/10/2023] Open
Abstract
Neuropathic pain is among the most debilitating forms of chronic pain. Studies have suggested that chronic pain pathogenesis involves neuroimmune interactions and blood-spinal cord barrier (BSCB) disruption. However, the underlying mechanisms are poorly understood. We modeled neuropathic pain in rats by inducing chronic constriction injury (CCI) of the sciatic nerve and analyzed the effects on C-X-C motif chemokine 10 (CXCL10)/CXCR3 activation, BSCB permeability, and immune cell migration from the circulation into the spinal cord. We detected CXCR3 expression in spinal neurons and observed that CCI induced CXCL10/CXCR3 activation, BSCB disruption, and mechanical hyperalgesia. CCI-induced BSCB disruption enabled circulating T cells to migrate into the spinal parenchyma. Intrathecal administration of an anti-CXCL10 antibody not only attenuated CCI-induced hyperalgesia, but also reduced BSCB permeability, suggesting that CXCL10 acts as a key regulator of BSCB integrity. Moreover, T cell migration may play a critical role in the neuroimmune interactions involved in the pathogenesis of CCI-induced neuropathic pain. Our results highlight CXCL10 as a new potential drug target for the treatment of nerve injury-induced neuropathic pain.
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Affiliation(s)
- Hao-Ling Li
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Department of Anesthesia, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yan Huang
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Department of Anesthesia, The Central Hospital of Lishui City, Lishui, China
| | - Ya-Lan Zhou
- Department of Anesthesia, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Run-Hua Teng
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shu-Zhuan Zhou
- Department of Anesthesia, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Jia-Piao Lin
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Yang
- Centre for Neuroscience, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng-Mei Zhu
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hua Xu
- Department of Anesthesia, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yong-Xing Yao
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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11
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Abstract
RATIONALE Anesthetic management of pregnant women with Fontan circulation remains challenging. There are few reports that describe the anesthetic management of cesarean section after Fontan surgery. Here, we present a case of successful epidural anesthesia in a woman with Fontan circulation who required emergency cesarean section. PATIENT CONCERNS A 29-year-old woman at gestational week 28 was scheduled for emergency cesarean section because of fetal distress. Her past medical history was significant for congenital transposition of the great arteries that had been treated by Fontan surgery 26 years earlier. Her postoperative course had been uneventful and she had reached a near normal level of activity with no arrhythmias or thrombotic complications. On presentation, her oxygen saturation was approximately 84% and she had digital clubbing. Arterial blood gas analysis showed a PCO2 of 35 mmHg, PO2 of 55.5 mmHg, and hemoglobin of 16.3 g/dL. Her blood coagulation parameters were within normal limits except for a high fibrinogen concentration (4.55 g/L). DIAGNOSIS The diagnosis was pregnancy requiring emergency cesarean section because of fetal distress. INTERVENTIONS Before anesthesia, a radial artery line was established for continuous measurement of blood pressure. An air pressure pump was placed on the patient's lower limbs and a low-dose dobutamine infusion was started. Next, epidural anesthesia was successfully performed at L2-3. Five milliliters of 2% lidocaine followed by 10 mL of 0.75% ropivacaine were injected. Dobutamine was infused to maintain a target blood pressure of 100-120/60-70 mmHg. OUTCOMES The procedure was uneventful with the patient maintaining a stable heart rate of 80 to 90 beats/min and an oxygen saturation of 90% to 94%. A male infant weighing 840 g was delivered. The Apgar score was 9 at 1 and 5 minutes. The patient was transferred to the intensive care unit for 20 hours of monitoring and discharged 9 days later. The neonate was discharged after 2 months of specialist neonatal treatment. LESSONS Epidural anesthesia may be used in women with Fontan circulation undergoing emergency cesarean section. Knowledge of the physiology of the heart lesion and that of pregnancy are critical to the outcome.
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Zhu SJ, Wang KR, Zhang XX, Zhu SM. Relationship between genetic variation in the α 2A-adrenergic receptor and the cardiovascular effects of dexmedetomidine in the Chinese Han population. J Zhejiang Univ Sci B 2019; 20:598-604. [PMID: 31168973 DOI: 10.1631/jzus.b1800647] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
There are differences in individual cardiovascular responses to the administration of dexmedetomidine, a highly selective α2A-adrenergic receptor (ADRA2A) agonist. The aim of this study was to investigate ADRA2A gene polymorphisms in the Chinese Han population and their association with the cardiovascular response to intravenous dexmedetomidine infusion. Sixty elective surgery patients of Chinese Han nationality were administered 1 µg/kg dexmedetomidine intravenously over 10 min as a premedication. ADRA2A C-1291G and A1780G polymorphism status was determined in these patients, and their relationships to changes in blood pressure and heart rate after dexmedetomidine administration were analyzed. There were neither significant differences in systolic or diastolic blood pressure changes in individuals with different A1780G and C-1291G genotypes after dexmedetomidine administration, nor in heart rates among the different A1780G genotypes. However, there were significant differences in changes in heart rates in patients with different C-1291G genotypes. There were no significant differences in the sedative effects of dexmedetomidine among different A1780G and C-1291G genotypes. Logistic regression revealed that the C-1291G polymorphism was associated with differential decreases in heart rate after intravenous infusion of dexmedetomidine. These findings indicate that the ADRA2A C-1291G polymorphism can affect heart rate changes in patients after intravenous infusion of dexmedetomidine.
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Affiliation(s)
- Shao-Jun Zhu
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Kui-Rong Wang
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Xiong-Xin Zhang
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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13
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Guo SH, Lin JP, Huang LE, Yang Y, Chen CQ, Li NN, Su MY, Zhao X, Zhu SM, Yao YX. Silencing of spinal Trpv1 attenuates neuropathic pain in rats by inhibiting CAMKII expression and ERK2 phosphorylation. Sci Rep 2019; 9:2769. [PMID: 30808963 PMCID: PMC6391380 DOI: 10.1038/s41598-019-39184-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 01/14/2019] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence suggests a potential role of transient receptor potential vanilloid 1 (TRPV1) channels in inflammatory and cancer-related pain. However, the role of TRPV1 in the maintenance of neuropathic pain remains elusive. The current study investigated the effects of transient Trpv1 gene silencing using a small interference RNA (siRNA) on neuropathic pain induced by chronic constriction injury (CCI) of the sciatic nerve in rats. Seven days after CCI, the TRPV1 siRNA was intrathecally administered (5 µg/15 µl, once daily for 2 days). TRPV1 and Ca2+/calmodulin-dependent protein kinase II (CAMKII) expression and extracellular signal-regulated kinase (ERK) phosphorylation in the spinal cord were detected using western blotting. The thresholds to mechanical and thermal stimuli were determined before and after intrathecal TRPV1 siRNA administration. TRPV1 and CAMKII expression and ERK2 phosphorylation in the spinal cord were upregulated after CCI. Intrathecal administration of the TRPV1 siRNA not only attenuated behavioural hyperalgesia but also reduced the expression of TRPV1 and CAMKII, as well as ERK2 phosphorylation. Based on these results, silencing of the TRPV1 gene in the spinal cord attenuates the maintenance of neuropathic pain by inhibiting CAMKII/ERK2 activation and suggests that TRPV1 represents a potential target in pain therapy.
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Affiliation(s)
- Shao-Hui Guo
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Jia-Piao Lin
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Ling-Er Huang
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Yan Yang
- Zhejiang University School of Medicine, Centre for Neuroscience, Hangzhou, 310016, P. R. China
| | - Chao-Qin Chen
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Na-Na Li
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Meng-Yun Su
- Department of Anaesthesia, Shulan (Hangzhou) Hospital, Hangzhou, 310022, P. R. China
| | - Xian Zhao
- Department of Anaesthesia, Shulan (Hangzhou) Hospital, Hangzhou, 310022, P. R. China
| | - Sheng-Mei Zhu
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China
| | - Yong-Xing Yao
- Department of Anaesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, P. R. China.
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14
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Abstract
RATIONALE Ventilator-associated complications comprise important fatal aetiologies during heart transplantation. Ultra-fast anesthesia might provide the most effective measure to prevent this type of complication. Immediate extubation after heart transplantation (IEAHT) has recently been reported in adult patients. However, IEAHT in children is much more challenging due to limitations in anesthesia protocols. Recently, we managed to perform an ultra-fast anesthesia protocol combined with IEAHT during a heart transplant operation in a child, who had an excellent postoperative outcome. PATIENT CONCERNS A 13-year-old girl had been diagnosed with dilated cardiomyopathy 5 years before this case, due to intractable dyspnoea and cough. She received multiple medical treatments after diagnosis, with minimal effects. Physical examination findings included a bulge in her left chest and pitting edema over both legs. Moist rales could be heard in the lung. Echocardiography revealed very large heart chambers, with an ejection fraction of 17%. DIAGNOSIS The patient was diagnosed with dilated cardiomyopathy and scheduled to undergo an emergent operation for heart transplantation. INTERVENTIONS The patient underwent an ultra-fast anesthesia protocol and ultra-fast reversal during heart transplantation. General anesthesia was induced with etomidate, fentanyl, and vecuronium; it was then maintained with remifentanil-based total intravenous anesthesia. OUTCOMES Immediately after the end of the operation, the patient was brought to consciousness with stable breathing and haemodynamics. The patient was successfully extubated on the operating table and transferred to the intensive care unit with spontaneous breathing, without postoperative mechanical ventilation. The recovery period was uneventful and the patient was discharged 1 month later without complications. LESSONS Our experience, in this case, revealed that IEAHT in children is achievable if the ultra-fast protocol is performed properly and carefully, in order to prevent ventilator-associated complications.
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Kang XH, Bao FP, Zhang HG, Yu DJ, Ha K, Xie Q, Zhu SM. Gender Affects the Median Effective Dose and 95% Effective Dose of Oxycodone for Blunting the Hemodynamic Response to Tracheal Intubation in Narcotic-Naïve Adult Patients. Chin Med J (Engl) 2018; 131:1958-1963. [PMID: 30082527 PMCID: PMC6085854 DOI: 10.4103/0366-6999.238138] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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] [Indexed: 11/04/2022] Open
Abstract
Background Intravenous (IV) oxycodone has been used at induction to prevent an intubation reaction. The aims of the current study were to calculate the median effective dose (ED50) and the 95% effective dose (ED95) of an IV bolus of oxycodone that blunts the hemodynamic response to tracheal intubation with propofol according to gender and to observe the adverse events of induction-dose oxycodone. Methods Adult patients who required general anesthesia and tracheal intubation were enrolled. Tracheal intubation was performed using unified TD-C-IV video laryngoscopy and an ordinary common endotracheal tube. Dixon's up-and-down method was used to obtain ED50data for women and men separately. The initial dose of oxycodone was 0.2 mg/kg for women and 0.3 mg/kg for men (step size was 0.01 mg/kg). Next, a dose-response curve from the probit analysis was generated to determine the ED50and ED95to blunt the intubation reaction in female and male patients. Adverse events following oxycodone injection were observed for 5 min before propofol injection. Results Sixty-three patients were analyzed, including 29 females and 34 males. According to the probit analysis, the ED50 and ED95of oxycodone required to blunt the intubation reaction in women were 0.254 mg/kg (95% confidence interval [CI], 0.220-0.328 mg/kg) and 0.357 mg/kg (95% CI, 0.297-2.563 mg/kg), respectively. In men, the ED50 and ED95were 0.324 mg/kg (95% CI, 0.274-0.381 mg/kg) and 0.454 mg/kg (95% CI, 0.384-2.862 mg/kg), respectively. Men required 28% more oxycodone than women for induction (P < 0.01). The most common adverse events were dizziness (87.3%), vertigo (66.7%), sedation (74.6%), and respiratory depression (66.7%). Conclusions Oxycodone can be used for induction to prevent intubation reactions. Gender affected the ED50and ED95of oxycodone for blunting the tracheal intubation reaction.
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Affiliation(s)
- Xian-Hui Kang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Fang-Ping Bao
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Hong-Gang Zhang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Dan-Jun Yu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Ke Ha
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003; Department of Anesthesiology, Changxing Hospital of Traditional Chinese Medicine, Changxing County, Huzhou, Zhejiang 313100, China
| | - Qing Xie
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
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16
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Zheng W, Zhao KM, Luo LH, Yu Y, Zhu SM. Perioperative Single-Donor Platelet Apheresis and Red Blood Cell Transfusion Impact on 90-Day and Overall Survival in Living Donor Liver Transplantation. Chin Med J (Engl) 2018; 131:426-434. [PMID: 29451147 PMCID: PMC5830827 DOI: 10.4103/0366-6999.225049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Although many previous studies have confirmed that perioperative blood transfusion is associated with poor outcomes after liver transplantation (LT), few studies described the influence of single-donor platelet apheresis transfusion in living donor LT (LDLT). This study aimed to assess the effect of blood products on outcomes for LDLT recipients, focusing on apheresis platelets. Methods: This retrospective study included 126 recipients who underwent their first adult-to-adult LDLT. Twenty-four variables including consumption of blood products of 126 LDLT recipients were assessed for their link to short-term outcomes and overall survival. Kaplan-Meier survival curve and the log-rank test were used for recipient survival analysis. A multivariate Cox proportional-hazard model and a propensity score analysis were applied to adjust confounders after potential risk factors were identified by a univariate Cox analysis. Results: Patients who received apheresis platelet transfusion had a lower 90-day cumulative survival (78.9% vs. 94.2%, P = 0.009), but had no significant difference in overall survival in the Cox model, compared with those without apheresis platelet transfusion. Units of apheresis platelet transfusion (hazard ratio [HR] = 3.103, 95% confidence interval [CI]: 1.720–5.600, P < 0.001) and preoperative platelet count (HR = 0.170, 95% CI: 0.040–0.730, P = 0.017) impacted 90-day survival independently. Multivariate Cox regression analysis also found that units of red blood cell (RBC) transfusion (HR = 1.036, 95% CI: 1.006–1.067, P = 0.018), recipient's age (HR = 1.045, 95% CI: 1.005–1.086, P = 0.025), and ABO blood group comparison (HR = 2.990, 95% CI: 1.341–6.669, P = 0.007) were independent risk factors for overall survival after LDLT. Conclusions: This study suggested that apheresis platelets were only associated with early mortality but had no impact on overall survival in LDLT. Units of RBC, recipient's age, and ABO group comparison were independent predictors of long-term outcomes.
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Affiliation(s)
- Wei Zheng
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Kang-Mei Zhao
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Li-Hui Luo
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Yang Yu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
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17
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Abstract
RATIONALE Although venous air embolism (VAE) during liver operation has been reported occasionally, fatal VAE in hepatic resection is uncommon. Prompt detection of VAE by transesophageal echocardiography (TEE) is crucial for effective therapy. We describe a case of fatal VAE that caused repeated cardiac arrest during hepatic resection and was confirmed by TEE. PATIENT CONCERNS A 51-year-old woman with a body weight of 50 kg underwent partial liver resection due to intrahepatic duct calculus. She had a 1-year history of intrahepatic duct calculus without cardiopulmonary disease. The operation was performed under general anesthesia combined with epidural block. When the inferior vena cava was compressed, the PetCO2 level decreased abruptly from 30 to 10 mmHg, followed by a decrease in SpO2 and the development of hypotension. Her heart rate increased with ST interval elevation on electrocardiography monitoring. Ephedrine and phenylephrine were administered immediately but had little effect. Cardiac arrest occurred. DIAGNOSES Air embolism was detected by TEE. INTERVENTIONS Resuscitation was successful although cardiac arrest occurred repeatedly. OUTCOMES The patient returned to consciousness 6 hours postoperatively but died of multiorgan dysfunction 10 days later. LESSONS Fatal air embolism may happen during hepatic resection. Prompt detection of VAE by TEE is crucial for effective therapy and should always be available during hepatic resection.
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18
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Lin JP, Chen CQ, Huang LE, Li NN, Yang Y, Zhu SM, Yao YX. Dexmedetomidine Attenuates Neuropathic Pain by Inhibiting P2X7R Expression and ERK Phosphorylation in Rats. Exp Neurobiol 2018; 27:267-276. [PMID: 30181689 PMCID: PMC6120967 DOI: 10.5607/en.2018.27.4.267] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 05/28/2018] [Revised: 08/21/2018] [Accepted: 08/23/2018] [Indexed: 01/24/2023] Open
Abstract
α2-Adrenoceptor agonists attenuate hypersensitivity under neuropathic conditions. However, the mechanisms underlying this attenuation remain largely unknown. In the present study, we explored the potential roles of purinergic receptor 7 (P2X7R)/extracellular signal-regulated kinase (ERK) signaling in the anti-nociceptive effect of dexmedetomidine in a rat model of neuropathic pain induced by chronic constriction injury (CCI) of the sciatic nerve. An animal model of CCI was adopted to mimic the clinical neuropathic pain state. Behavioral hypersensitivity to mechanical and thermal stimuli was determined by von Frey filament and Hargreaves' tests, and the spinal P2X7R expression level and ERK phosphorylation were analyzed using western blot analysis and immunohistochemistry. In parallel with the development of mechanical and thermal hyperalgesia, a significant increase in P2X7R expression was noted in the ipsilateral spinal cord on day 7 after CCI. Intrathecal administration of dexmedetomidine (2.5 µg) for 3 days not only attenuated neuropathic pain but also inhibited the CCI-induced P2X7R upregulation and ERK phosphorylation. Intrathecal dexmedetomidine administration did not produce obvious effects on locomotor function. The present study demonstrated that dexmedetomidine attenuates the neuropathic pain induced by CCI of the sciatic nerve in rats by inhibiting spinal P2X7R expression and ERK phosphorylation, indicating the potential therapeutic implications of dexmedetomidine administration for the treatment of neuropathic pain.
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Affiliation(s)
- Jia-Piao Lin
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Chao-Qin Chen
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Ling-Er Huang
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Na-Na Li
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yan Yang
- Centre for Neuroscience, Zhejiang University School of Medicine, Hangzhou 310016, P.R. China
| | - Sheng-Mei Zhu
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
| | - Yong-Xing Yao
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, P.R. China
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19
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Huang SQ, Zhang J, Zhang XX, Liu L, Yu Y, Kang XH, Wu XM, Zhu SM. Can Dexmedetomidine Improve Arterial Oxygenation and Intrapulmonary Shunt during One-lung Ventilation in Adults Undergoing Thoracic Surgery? A Meta-analysis of Randomized, Placebo-controlled Trials. Chin Med J (Engl) 2018; 130:1707-1714. [PMID: 28685722 PMCID: PMC5520559 DOI: 10.4103/0366-6999.209891] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background: One-lung ventilation (OLV) is a common ventilation technology during thoracic surgery that can cause serious clinical problems. We aimed to conduct a meta-analysis to compare oxygenation and intrapulmonary shunt during OLV in adults undergoing thoracic surgery with dexmedetomidine (Dex) versus placebo to assess the influence and safety of using Dex. Methods: Randomized controlled trials comparing lung protection in patients who underwent thoracic surgery with Dex or a placebo were retrieved from PubMed, EMBASE, MEDLINE, Cochrane Library, and China CNKI database. The following information was extracted from the paper: arterial oxygen partial pressure (PaO2), PaO2/inspired oxygen concentration (PaO2/FiO2, oxygenation index [OI]), intrapulmonary shunt (calculated as Qs/Qt), mean arterial pressure (MAP), heart rate (HR), tumor necrosis factor-α (TNF-α), interleukin (IL)-6, superoxide dismutase (SOD), and malondialdehyde (MDA). Results: Fourteen randomized controlled trials were included containing a total of 625 patients. Compared with placebo group, Dex significantly increased PaO2/FiO2 (standard mean difference [SMD] = 0.98, 95% confidence interval [CI] [0.72, 1.23], P < 0.00001). Besides, Qs/Qt (SMD= −1.22, 95% CI [−2.20, −0.23], P = 0.020), HR (SMD= −0.69, 95% CI [−1.20, 0.17], P = 0.009), MAP (SMD= −0.44, 95% CI [−0.84, 0.04], P = 0.030), the concentrations of TNF-α (SMD = −1.55, 95% CI [−2.16, −0.95], P <0.001), and IL-6 (SMD = −1.53, 95% CI [−2.37, −0.70], P = 0.0003) were decreased in the treated group, when compared to placebo group. No significant difference was found in MDA (SMD = −1.14, 95% CI [−3.48, 1.20], P = 0.340) and SOD (SMD = 0.41, 95% CI [−0.29, 1.10], P = 0.250) between the Dex group and the placebo group. Funnel plots did not detect any significant publication bias. Conclusions: Dex may improve OI and reduce intrapulmonary shunt during OLV in adults undergoing thoracic surgery. However, this conclusion might be weakened by the limited number of pooled studies and patients.
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Affiliation(s)
- Su-Qin Huang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Jian Zhang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Xiong-Xin Zhang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Lu Liu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Yang Yu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Xian-Hui Kang
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
| | - Xiao-Min Wu
- Department of Anesthesiology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, Zhejiang 310014, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310000, China
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Lu RJ, Zhu SM, Tang FL, Zhu XS, Fan ZD, Wang GL, Jiang YF, Zhang Y. Effects of vitamin D or its analogues on the mortality of patients with chronic kidney disease: an updated systematic review and meta-analysis. Eur J Clin Nutr 2017; 71:683-693. [PMID: 28488689 DOI: 10.1038/ejcn.2017.59] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 03/31/2017] [Accepted: 04/03/2017] [Indexed: 12/26/2022]
Abstract
The objective of this study was to assess whether vitamin D (VD) treatment alters the overall all-cause and cardiovascular mortalities in a chronic kidney disease (CKD) population. We systematically searched PubMed, EMBASE, Web of Science, and Cochrane Central Register of Controlled Trials without language restriction, until the publication date of 22 February 2016. All related literatures that compared VD treatment with non-VD treatment and reported the mortality of patients with CKD (including those undergoing dialysis) were identified. Pooled risk ratios (RR) and 95% confidence intervals (CI) were calculated by using the random- and fixed-effects models. Randomised controlled trials (RCTs) that used the intention-to-treat principle and observational studies (OSs) were analysed separately. For this study, 38 studies involving 223 429 patients (17 RCTs, n=1819 and 21 OSs, n=221610) were included. In the OSs, VD treatment was significantly associated with reductions in both all-cause and cardiovascular mortalities; however, such significant association was not found in the RCTs. The existing RCTs do not provide sufficient or precise evidence that VD supplementation affects the mortality of patients with CKD, although subsets of patients that could potentially benefit from VD treatment can be identified by using the existing data from the RCTs. Nevertheless, large-size RCTs are needed in the future to assess any potential differences in survival prospectively.
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Affiliation(s)
- R J Lu
- Department of Pharmacy, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - S M Zhu
- Department of Pharmacy, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - F L Tang
- Department of Pharmacy, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - X S Zhu
- Department of Urinary Surgery, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - Z D Fan
- Department of Pharmacy, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - G L Wang
- Department of Urinary Surgery, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - Y F Jiang
- Department of Urinary Surgery, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
| | - Y Zhang
- Department of Internal Medicine, The Third People's Hospital of Changzhou, Changzhou, People's Republic of China
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Li NN, Huang YQ, Huang LE, Guo SH, Shen MR, Guo CL, Zhu SM, Yao YX. Dezocine Antagonizes Morphine Analgesia upon Simultaneous Administration in Rodent Models of Acute Nociception. Pain Physician 2017; 20:E401-E409. [PMID: 28339439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Dezocine is a powerful analgesic that can be less addictive than morphine, yet how the two drugs interact in vivo is poorly understood. Here we administered dezocine alone or in combination with morphine to different acute nociception paradigms to explore the interactions of the 2 drugs upon co-administration. OBJECTIVE To evaluate how dezocine interacts with morphine in different acute nociception paradigms. STUDY DESIGN Laboratory animal study. SETTING Zhejiang University School of Medicine, Hangzhou, China. METHODS Healthy mice were treated with saline, dezocine (0.625 - 2.5 µg), or a combination of dezocine with morphine (2.5 µg). Tail withdrawal latency (TWL) was analyzed prior to and 30 minutes after drug administration. Rats were treated with saline, morphine (3 mg/kg), dezocine (3 mg/kg), or a combination of both drugs. The animals were then left uninjured, subjected to plantar incision, or underwent formaldehyde-induced acute inflammation. Nociception was then analyzed in terms of mechanical threshold (MT) to von Frey stimulation and paw withdrawal latency (PWL) to thermal stimulation. Formaldehyde-induced pain score was calculated based on the duration of biting and elevating of the animal's legs. Phosphorylation of extracellular signal-regulated kinase (pERK) was also measured after plantar incision as a molecular index of nociception. RESULTS Dezocine enhanced TWL but inhibited morphine analgesia in a dose-dependent fashion in mice. Usage of morphine or dezocine alone in uninjured rats increased MT, but co-administering both drugs did not further increase MT. Usage of one drug alone, and both drugs together increased MT and PWL relative to saline at 30 minutes after incision. Usage of one drug alone, but not both drugs together, increased MT and PWL at 120 minutes after incision. Dezocine reduced formaldehyde-induced nociception but co-administering both drugs did not further reduce pain behavior. LIMITATIONS The results were obtained from animal study; clinical investigations will be needed to clarify their interaction. CONCLUSION Dezocine antagonizes morphine analgesia on acute nociception upon simultaneous administration.Key words: Dezocine, morphine, acute nociception, analgesia.
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Affiliation(s)
- Na-Na Li
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ya-Qin Huang
- Hangzhou Hospital Affiliated to Nanjing Medical University, Hangzhou First People's Hospital, Hangzhou, China
| | - Ling-Er Huang
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shao-Hui Guo
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Maxwell R Shen
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chen-Ling Guo
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sheng-Mei Zhu
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong-Xing Yao
- First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Wang LQ, Zhou HJ, Pan CF, Zhu SM, Xu LM. Expression of IL-1β, IL-6 and TNF-α in rats with thioacetamide-induced acute liver failure and encephalopathy: correlation with brain edema. ASIAN BIOMED 2017. [DOI: 10.5372/1905-7415.0502.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Abstract
Background: Secondary brain edema is a serious complication of hepatic encephalopathy (HE). Recently, it has been reported that proinflammatory cytokines are involved in the pathogenesis of brain edema during HE.
Objectives: Observe the dynamic expressions of brain and plasma proinflammatory cytokines in encephalopathy rats, and evaluate the relationship between proinflammatory cytokines and brain edema.
Methods: Acute HE rats were induced by intraperitoneal injection of thioacetamide (TAA) in 24 hours intervals for two consecutive days. Then, clinical symptom and stages of hepatic encephalopathy, motor activity counts, index of liver function, and brain water content were observed. The dynamic expressions of IL-1β, IL-6, and TNF-α in plasma and brain tissues were measured with enzyme-linked immunosorbent assay.
Results: Typical clinical performances of hepatic encephalopathy were occurred in all TAA-administrated rats. The TAA rats showed lower motor activity counts and higher the index of alanine aminotransferase, aspartate aminotransferase, total bilirubin and ammonia than those in control rats. Brain water content was significantly enhanced in TAA rats compared with the control. The expressions of IL-1β, IL-6, and TNF- α in plasma and brain significantly increased in TAA rats. In addition, the expressions of cerebral proinflammatory cytokines were positively correlated with brain water content but negatively correlated with motor activity counts.Conclusion: Inflammation was involved in the pathogenesis of brain edema during TAA-induced HE.
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Affiliation(s)
- Li-Qing Wang
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Heng-Jun Zhou
- Department of Neurosurgery, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Cai-Fei Pan
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Lin-Mei Xu
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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Abstract
Anesthesiologists work to prevent or minimize secondary injury of the nervous system and improve the outcome of medical procedures. To this end, anesthesiologists must have a thorough understanding of pathophysiology and optimize their skills and equipment to make an anesthesia plan. Anesthesiologists should conduct careful physical examinations of patients and consider neuroprotection at preoperative interviews, consider cervical spinal cord movement and compression during airway management, and suggest awake fiberoptic bronchoscope intubation for stable patients and direct laryngoscopy with manual in-line immobilization in emergency situations. During induction, anesthesiologists should avoid hypotension and depolarizing muscle relaxants. Mean artery pressure should be maintained within 85-90 mmHg (1 mmHg = 0.133 kPa; vasoactive drug selection and fluid management). Normal arterial carbon dioxide pressure and normal blood glucose levels should be maintained. Intraoperative neurophysiological monitoring is a useful option. Anesthesiologists should be attentive to postoperative respiratory insufficiency (carefully considering postoperative extubation), thrombus, and infection. In conclusion, anesthesiologists should carefully plan the treatment of patients with acute cervical spinal cord injuries to protect the nervous system and improve patient outcome.
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Affiliation(s)
- Fang-Ping Bao
- Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Hong-Gang Zhang
- Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Sheng-Mei Zhu
- Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province, China
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Chen YW, Li B, Niu Q, Li L, Kan JW, Zhu SM, Shen SB. Combined promoting effects of low-Pd-containing and Cu-doped LaCoO3 perovskite supported on cordierite for the catalytic combustion of benzene. Environ Sci Pollut Res Int 2016; 23:15193-15201. [PMID: 27094280 DOI: 10.1007/s11356-016-6594-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
The catalytic activities for benzene oxidation and resistance to SO2 poisoning were tested for a series of Pd/La-Cu-Co-O/cordierite catalysts, which were prepared using a multiple-step impregnation method. The XRD, SEM, and IR characterization techniques were performed to investigate the relationship between the catalytic performance and its physicochemical properties. When Pd/La-Cu-Co-O/cordierite catalysts with Pd loadings of 0.06 and 0.08 % were prepared at a calcination temperature of 500 °C for 5 h, they exhibited similar catalytic activity and sulfur resistance. When the concentration of benzene was 1500 ppm and the GHSV was 20000 h(-1), the benzene conversion was above 95 % at a reaction temperature of 350 °C in SO2 existing at 100 ppm. These results were mainly attributed to the cooperation between La-Cu-Co-O perovskite and the noble metal Pd. Specifically, the addition of copper can strengthen the catalytic activity of La-Co-O/cordierite catalysts by decreasing the crystalline size of the active ingredients. A moderate Pd addition can drastically improve the sulfur resistance and further improve the catalytic activity of the La-Cu-Co-O/cordierite catalyst.
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Affiliation(s)
- Y W Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China.
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China.
| | - B Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Q Niu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - L Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - J W Kan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - S M Zhu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - S B Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, 210009, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
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Zhang Y, Zhao NA, Wang JK, Zhu SM, Zhu HL, Liu B, Cui QW, Guan GC, Tian G. Telmisartan inhibited angiotensin II-induced collagen metabolic imbalance without directly targeting TGF-β 1/Smad signaling pathway in cardiac fibroblasts. Minerva Cardioangiol 2015; 63:507-514. [PMID: 26657532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
AIM Cardiac fibrosis is an important pathological process of cardiac remodeling. A large number of studies have shown that telmisartan can attenuate cardiac fibrosis through acting on angiotensin II 1 receptor (AT1R), and TGF-β 1/Smad signaling molecule is an important pathway to achieve this effect. The aim of the study was to clarify whether, with excessive activation of RAAS system, telmisartan could also directly target TGF-β 1/Smad signaling pathway to have the function of anti-cardiac fibrosis. METHODS In this study, neonatal rat cardiac fibroblasts were cultured and AngII or TGF-β 1 was administered for treatment or pre-incubation, and then telmisartan was used for 24 hours' incubation. Western blot and enzyme-linked immunosorbent assay (ELISA) tests were performed to detect protein expressions. RESULTS The results showed that telmisartan could inhibit collagen synthesis and collagen metabolic imbalance under the effect of Ang II, but telmisartan could not have such function in TGF-β 1-induced cardiac fibroblasts. It was further confirmed by western blot method that telmisartan could inhibit TGF-β 1/Smad signaling molecule expression under the effect of Ang II, but telmisartan had no effect on TGF-β 1-induced Smad signaling molecule expression. CONCLUSION According to the present study telmisartan played a role of anticardiac fibrosis without directly targeting TGF-β 1/Smad signaling pathway molecule.
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Affiliation(s)
- Y Zhang
- First Department of Cardiology, Shaanxi Provincial People's Hospital, Third Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Kong HY, Wen XH, Huang SQ, Zhu SM. Epsilon-aminocaproic acid improves postrecirculation hemodynamics by reducing intraliver activated protein C consumption in orthotopic liver transplantation. World J Surg 2014; 38:177-85. [PMID: 24142329 DOI: 10.1007/s00268-013-2282-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Activated protein C (APC) is related to regulating the inflammatory response and hemodynamic stability upon reperfusion in cardiac operations and orthotopic liver transplantation (OLT). Epsilon-aminocaproic acid (EACA) is frequently used to treat fibrinolysis during OLT. It also has inhibitory effects related to the inflammatory response. However, it remains to be determined whether EACA can attenuate intraliver APC consumption and improve hemodynamic stability after reperfusion during OLT. METHODS Fifty-nine recipients were randomized to receive either EACA (150 mg kg(-1) given intravenously prior to incision, followed by 15 mg kg(-1) h(-1) infusion until 2 h after the graft reperfusion) or the same volume of saline. Blood samples to assess plasma APC and protein C were obtained immediately before and after reperfusion from the inferior caval effluent or the portal veins for calculation of transliver differences (Δ). Hemodynamics and vasoactive medication use during the reperfusion period were observed in both groups. RESULTS No transhepatic changes in protein C were found in either group. Immediately after reperfusion, a marked intraliver consumption of APC was noted in all recipients (P < 0.001), and intraliver consumption of APC in the control group was greater than that in the EACA-treated group (P < 0.05). Fewer requirements for vasoactive medication use after reperfusion and better initial graft function were noted in the EACA-treated group (P < 0.05). CONCLUSIONS EACA can attenuate intraliver APC consumption and improve hemodynamic stability after reperfusion and initial graft function during OLT.
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Affiliation(s)
- H Y Kong
- Department of Anesthesiology, 1st Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, China,
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Xiong XX, Gu LJ, Shen J, Kang XH, Zheng YY, Yue SB, Zhu SM. Probenecid protects against transient focal cerebral ischemic injury by inhibiting HMGB1 release and attenuating AQP4 expression in mice. Neurochem Res 2013; 39:216-24. [PMID: 24317635 DOI: 10.1007/s11064-013-1212-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 10/31/2013] [Accepted: 11/25/2013] [Indexed: 12/11/2022]
Abstract
Stroke results in inflammation, brain edema, and neuronal death. However, effective neuroprotectants are not available. Recent studies have shown that high mobility group box-1 (HMGB1), a proinflammatory cytokine, contributes to ischemic brain injury. Aquaporin 4 (AQP4), a water channel protein, is considered to play a pivotal role in ischemia-induced brain edema. More recently, studies have shown that pannexin 1 channels are involved in cerebral ischemic injury and the cellular inflammatory response. Here, we examined whether the pannexin 1 channel inhibitor probenecid could reduce focal ischemic brain injury by inhibiting cerebral inflammation and edema. Transient focal ischemia was induced in C57BL/6J mice by middle cerebral artery occlusion (MCAO) for 1 h. Infarct volume, neurological score and cerebral water content were evaluated 48 h after MCAO. Immunostaining, western blot analysis and ELISA were used to assess the effects of probenecid on the cellular inflammatory response, HMGB1 release and AQP4 expression. Administration of probenecid reduced infarct size, decreased cerebral water content, inhibited neuronal death, and reduced inflammation in the brain 48 h after stroke. In addition, HMGB1 release from neurons was significantly diminished and serum HMGB1 levels were substantially reduced following probenecid treatment. Moreover, AQP4 protein expression was downregulated in the cortical penumbra following post-stroke treatment with probenecid. These results suggest that probenecid, a powerful pannexin 1 channel inhibitor, protects against ischemic brain injury by inhibiting cerebral inflammation and edema.
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Affiliation(s)
- Xiao-Xing Xiong
- Department of Anesthesia, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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Zhang J, Zhang D, Wu GQ, Feng ZY, Zhu SM. Propofol inhibits the adhesion of hepatocellular carcinoma cells by upregulating microRNA-199a and downregulating MMP-9 expression. Hepatobiliary Pancreat Dis Int 2013; 12:305-9. [PMID: 23742776 DOI: 10.1016/s1499-3872(13)60048-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [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: 02/05/2023]
Abstract
BACKGROUND Propofol is one of the extensively and commonly used intravenous anesthetics and has the ability to influence the proliferation, motility, and invasiveness of many cancer cells. In this study, the effects of propofol on hepatocellular carcinoma cells invasion ability were examined. METHODS We assessed the invasion ability of HepG2 cells in vitro by determining enzyme activity and protein expression of MMP-9 using gelatin zymography assay and Western blot. The real-time PCR was used to evaluate the effect of propofol on microRNA-199a (miR-199a) expression, and miR-199a-2 precursor to evaluate whether over-expression of miR-199a can affect MMP-9 expression. Finally, the effect of miR-199a on propofol-induced anti-tumor activity using anti-miR-199a was assessed. RESULTS Propofol significantly elevated the expression of miR-199a and inhibited the invasiveness of HepG2 cells. Propofol also efficiently decreased enzyme activity and protein expression of MMP-9. Moreover, the over-expression of miR-199a decreased MMP-9 protein level. Interestingly, the neutralization of miR-199a by anti-miR-199a antibody reversed the effect of propofol on alleviation of tumor invasiveness and inhibition of MMP-9 activity in HepG2 cells. CONCLUSION Propofol decreases hepatocellular carcinoma cell invasiveness, which is partly due to the down-regulation of MMP-9 expression by miR-199a.
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Affiliation(s)
- Jian Zhang
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Kong HY, Huang SQ, Zhu SM, Wen XH. Role of anhepatic time in endothelial-related coagulation in liver transplantation. Minerva Anestesiol 2013; 79:391-397. [PMID: 23419336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Disturbances in coagulation homeostasis are common in patients undergoing orthotopic liver transplantation (OLT) and anhepatic period is one of the important factors related to the coagulation abnormalities. The endothelium can regulate hemostasisby producing substances such as thrombomodulin (TM). The primary aim was to evaluate the effect of an hepatic time on the thrombomodulin-protein C system in patients undergoing OLT. METHODS Fifty patients undergoing OLT were stratified in two groups: anhepatic time ≥ 60 min (N.=18) or anhepatic stage <60 min (N.=32). TM, protein C, activated protein C (APC) and (free) protein S plasma concentrations were measured by enzymelinked immunosorbent assays (ELISA) at the start of the surgery (To); immediately before the anhepatic period (A1); immediately before reperfusion (A2); 5 minutes; 15 minutes; 30 minutes after reperfusion of the graft (R1; R2; R3); at the end of operation (R4); the first day after operation (R5). RESULTS Blood loss and transfusion were significantly greater in patients whose anhepatic time ≥ 60 min during the operation. TM levels increased most in patients whose anhepatic time ≥ 60 min. Protein C levels remained low throughout the surgery and decreased significantly at other points compared with To (P<0.05). There were no differences in protein C levels between groups except R5. The ratio of circulating APC activity to protein C antigen (APC/PC) increased significantly during the surgery. APC/PC ratio in the neohepatic stage increased significantly in patients whose anhepatic time ≥ 60 min (P<0.05). CONCLUSION Patients with prolonged anhepatic time had greater changes in the thrombomodulin-protein C system.
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Affiliation(s)
- H Y Kong
- Department of Anesthesiology, the First Affliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR, China.
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Kong HY, Chen F, He Y, Wu LJ, Wang LQ, Zhu SM, Zheng SS. Intrarenal resistance index for the assessment of acute renal injury in a rat liver transplantation model. BMC Nephrol 2013; 14:55. [PMID: 23453043 PMCID: PMC3599562 DOI: 10.1186/1471-2369-14-55] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 02/26/2013] [Indexed: 01/09/2023] Open
Abstract
Background Acute kidney injury (AKI) is a common complication after liver transplantation (LT) and associated with a high mortality. The renal resistive index (RI) is used to assess early renal function impairment in critical care patients. However, limited data are available concerning changes of renal RI and the development of AKI early after reperfusion. We approached to investigate the changes of renal RI and AKI after reperfusion in a rat liver transplantation model. Methods Rats were randomly divided into sham group or LT group. Ten rats in each group were used for the hemodynamic study and twenty for Doppler measurements during the procedure. Ten rats were sacrificed 30 min or 2 h after the reperfusion. We harvested kidneys, serum and urine for further analysis of the renal function. Results The intrarenal RI increased significantly in the anhepatic stage and decreased significantly after the reperfusion in the LT group compared with sham group (P < 0.05). AKI was seen after the reperfusion in the LT group. No correlation was noted between the RI and renal function parameters 30 min after reperfusion. Conclusions The intrarenal RI increased significantly during the anhepatic stage, and decreased significantly early after the reperfusion. Intrarenal RI was unable to assess renal function in a rat liver transplantation model.
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Affiliation(s)
- Hai-Ying Kong
- Department of Anesthesiology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, PR China
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Hu XM, Chen YW, Liao YG, Yan WF, Zhu SM, Shen SB. High NH(4)(+)-N concentration wastewater treatment by shortcut nitrification-denitrification using a system of A/O inner loop fluidized bed biofilm reactors. Water Sci Technol 2013; 67:1083-1091. [PMID: 23416601 DOI: 10.2166/wst.2013.575] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this experiment, a rapid mass-transfer inner loop fluidized bed biofilm reactor (ILFBBR) was employed to treat synthetic high ammonia nitrogen-containing (NH(4)(+)-N) wastewater by shortcut nitrification-denitrification. The reactor operation was stable after a short start-up period. Ammonia oxidizing bacteria (AOB) were predominant and 65% nitrite (NO(2)(-)-N/NO(x)(-)-N) levels were achieved. During the nitrification-denitrification period, the removal rates of NH(4)(+)-N and total nitrogen (TN) reached 94 and 82%, respectively. From the material balance, it was indicated that 87% of NH(4)(+)-N was removed by shortcut nitrification. The features of ILFBBR and the benefits of shortcut nitrification were combined in this experiment, and showed an excellent removal of NH(4)(+)-N from high-concentration NH(4)(+)-N wastewater.
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Affiliation(s)
- X M Hu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing, China
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Chen YW, Wang JM, Zang CL, Huang Q, Liu MQ, Zhu SM, Shen SB. A cascade of anoxic and oxic fluidized bed biofilm reactors for treatment of synthetic municipal wastewater. Water Environ Res 2012; 84:128-133. [PMID: 22515062 DOI: 10.2175/106143011x13206743269514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, a cascade of anoxic and oxic fluidized bed biofilm reactors system was carried out to treat synthetic municipal wastewater. The parameters of the influent flow rates and C/N ratios were discussed. System performance was acceptable for chemical oxygen demand (COD), ammonia, and total nitrogen removal. A decrease of ammonia and total nitrogen removal efficiencies, however, was observed when the influent flow rates increased to 5.04 and 6.12 1 h(-1). Total nitrogen removal decreased at the influent C/N ratio of 3:1. The measured ratios of COD reduction in the anoxic column to nitrogen removal through nitrification-denitrification were 3.7, 3.5, 3.3, and 3.1 g COD/g(-1) N on average when the influent C/N ratios changed from 6:1 to 3:1. The observed sludge yield (Yobs) was 0.169 g VSS g COD(-1) because of perfect denitrification in the anoxic column and the relatively long solids retention time.
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Affiliation(s)
- Y W Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing, P R China
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Wang LQ, Zhu SM, Zhou HJ, Pan CF. [Expression of aquaporin-4 during brain edema in rats with thioacetamide-induced acute encephalopathy]. Zhonghua Yi Xue Za Zhi 2011; 91:2573-2577. [PMID: 22321890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate the expression of aquaporin-4 (AQP4) during brain edema in rats with thioacetamide-induced acute liver failure and encephalopathy. METHODS The rat model of acute hepatic failure and encephalopathy was induced by intraperitoneal injection of thioacetamide (TAA) at a 24-hour interval for 2 consecutive days. Thirty-two SD rats were randomly divided into the model group (n = 24) and the control group (normal saline, n = 8). And then the model group was further divided into 3 subgroups by the timepoint of decapitation: 24 h (n = 8), 48 h (n = 8) and 60 h (n = 8). Then we observed their clinical symptoms and stages of HE, indices of liver function and ammonia, liver histology and brain water content. The expression of AQP4 protein in brain tissues was measured with Western blot and the expression of AQP4mRNA with RT-PCR (reverse transcription-polymerase chain reaction). RESULTS Typical clinical manifestations of hepatic encephalopathy occurred in all TAA-administrated rats. The model rats showed the higher indices of ALT (alanine aminotransferase), AST (aspartate aminotransferase), TBIL (total bilirubin) and ammonia than the control rats (P < 0.05). The brain water content was significantly elevated in TAA-administrated rats compared with the control (P < 0.05). The expressions of AQP4 protein and mRNA in brain tissues significantly increased in TAA-administrated rats (P < 0.05). In addition, the expressions of AQP4 protein and mRNA were positively correlated with brain water content (r = 0.536, P < 0.01; r = 0.566, P = 0.01). CONCLUSIONS The high expression of AQP4 in rats with TAA-induced acute liver failure and encephalopathy plays a significant role during brain edema. AQP4 is one of the molecular mechanisms for the occurrence of brain edema in hepatic encephalopathy.
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Affiliation(s)
- Li-Qing Wang
- Department of Anesthesiology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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Feng ZY, Xu X, Zhu SM, Bein B, Zheng SS. Effects of low central venous pressure during preanhepatic phase on blood loss and liver and renal function in liver transplantation. World J Surg 2010; 34:1864-73. [PMID: 20372900 DOI: 10.1007/s00268-010-0544-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Although the low central venous pressure (LCVP) technique is used to decrease blood loss during liver resection, its efficacy and safety during transplant procedures are still debatable. Our study aimed to assess the effects of this technique and its clinical safety for recipients undergoing liver transplantation. METHODS Eighty-six adult patients were randomly divided into a LCVP group and a control group. In the LCVP group, CVP was maintained below 5 mmHg or 40% lower than baseline during the preanhepatic phase by limiting infusion volume, manipulating the patient's posture, and administration of somatostatin and nitroglycerine. Recipients in the control group received standard care. Hemodynamics, blood loss, liver function, and renal function of the two groups were compared perioperatively. RESULTS A lower CVP was maintained in the LCVP group during the preanhepatic phase, resulting in a significant decrease in blood loss (1922 +/- 1429 vs. 3111 +/- 1833 ml, P < 0.05) and transfusion volume (1200 +/- 800 vs. 2400 +/- 1200 ml, P < 0.05) intraoperatively. Compared with the control group, the LCVP group had a significantly lower mean arterial pressure at 2 h after the start of the operation (74 +/- 11 vs. 84 +/- 14 mmHg, P < 0.05), a lower lactate value at the end of the operation (5.9 +/- 3.0 vs. 7.2 +/- 3.0 mmol/l, P < 0.05), and a better preservation of liver function after the declamping of the portal vein. There were no significant differences in perioperative renal function and postoperative complications between the groups. CONCLUSIONS The LCVP technique during the preanhepatic phase reduced intraoperative blood loss, protected liver function, and had no detrimental effects on renal function in LT.
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Affiliation(s)
- Zhi-Ying Feng
- Department of Anaesthesiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Kong HY, Zhu SM, Wang LQ, He Y, Xie HY, Zheng SS. Sevoflurane protects against acute kidney injury in a small-size liver transplantation model. Am J Nephrol 2010; 32:347-55. [PMID: 20798490 DOI: 10.1159/000319623] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Accepted: 07/20/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND Living donor liver transplantation (LDLT) patients run the risk of developing acute kidney injury (AKI) and subsequent chronic kidney disease, affecting morbidity and mortality. Sevoflurane has anti-inflammation properties, and renal ischemia/reperfusion under sevoflurane anesthesia resulted in drastic improvements in renal function. Extrahepatic metabolism of sevoflurane has been reported in patients undergoing liver transplantation, and might lead to nephrotoxicity. However, whether sevoflurane anesthesia is safe with regard to renal function in small-size liver transplantation needs further investigation. As neutrophil gelatinase-associated lipocalin (NGAL) is an early predictive biomarker of AKI, we looked at the renal effects of sevoflurane in a rat liver transplantation model using small-for-size grafts to investigate the changes of NGAL level and kidney histology. METHODS Sixty male Sprague-Dawley rats were randomly divided into 2 groups after 50% size liver transplantation. Rats were anesthetized with chloral hydrate or with sevoflurane and subjected to liver transplantation. Twelve rats in each group were used for the survival study and 6 rats were used for the hemodynamic study. Six rats in each group were sacrificed 2 or 24 h after reperfusion. We harvested kidneys and serum for further analysis, including histological and functional parameters; TNF-α, IL-6 and NGAL immunoassay; expressions of myeloperoxidase (MPO) activity; and NF-κB in renal tissues. RESULTS Rats in the sevoflurane group had significantly lower Scr 24 h after reperfusion compared with those in the chloral hydrate group. Rats in the sevoflurane group demonstrated significantly reduced NGAL concentrations compared with rats in the chloral hydrate group 2 h after reperfusion. Epithelial necrosis in the chloral hydrate group (3.2 ± 0.8) was greater than that in the sevoflurane group (1.5 ± 1.1; p < 0.05). Sevoflurane anesthesia resulted in significantly lower plasma TNF-α and IL-6 concentrations and reduced MPO concentrations 2 h after reperfusion (p < 0.05). NF-κB protein levels 2 h after reperfusion increased by at least 110% in the chloral hydrate group relative to the sevoflurane group 2 h after reperfusion (p < 0.05). However, the urine inorganic fluoride concentrations increased significantly (p < 0.001) 2 h after reperfusion in the sevoflurane group (6.1 ± 1.5 μmol·l⁻¹) compared with the chloral hydrate group. CONCLUSIONS Sevoflurane anesthesia can attenuate renal injury and modulate inflammatory cascades in small-size liver transplantation using rat models.
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Affiliation(s)
- H Y Kong
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
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Pan CF, Zhu SM, Zheng YY. Ammonia induces upregulation of aquaporin-4 in neocortical astrocytes of rats through the p38 mitogen-activated protein kinase pathway. Chin Med J (Engl) 2010; 123:1888-1892. [PMID: 20819573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND Astrocyte swelling is an important consequence of hepatic encephalopathy, and aquaporin-4 has been reported to play a vital role in this swelling. Ammonia causes astrocyte swelling and is also known to modulate aquaporin-4 expression in the astrocyte foot processes. The purpose of this study was to explore the mechanism of ammonia-induced aquaporin-4 expression, which has been suggested to involve the p38 mitogen-activated protein kinase pathway. METHODS We exposed cultured astrocytes to ammonium chloride, an in vitro model of hepatic encephalopathy. The purity of cultured astrocytes was evaluated by fluorescent glial fibrillary acidic protein labeling; cell morphology was assessed by light microscopy; the expression of aquaporin-4, phospho-p38, and p38 were detected by Western blotting analysis. Statistical analysis was performed by one-way factorial analysis of variance, and the relationship between variables was calculated by linear regression using SPSS version 13.0 program for Windows (SPSS, Chicago, IL, USA). RESULTS The purity of cultured astrocytes was (96.6 +/- 1.4)%. Astrocytes swelled significantly when exposed to 5 mmol/L ammonium chloride for 24 hours as compared to non-exposed astrocytes. Co-treatment with 10 micromol/L SB203580 (an inhibitor of p38) attenuated the degree of ammonium chloride induced astrocyte swelling. Western blotting analysis revealed that the expression levels of phospho-p38 and aquaporin-4 in ammonium chloride treated cells were significantly increased relative to the control group (P < 0.001); SB203580 co-treatment inhibited the increased expression of phospho-p38 and aquaporin-4 relative to the ammonium chloride treated group (P = 0.002 and P = 0.015 respectively). The phosphorylation of p38 and upregulation of aquaporin-4 were highly correlated (r = 0.909). There were no significant differences in total p38 expression among the groups (P = 0.341). CONCLUSIONS Ammonium chloride induced upregulation of aquaporin-4 in astrocytes is regulated by the p38 mitogen-activated protein kinase pathway. Inhibiting p38 activation prevented ammonium chloride induced aquaporin-4 protein upregulation.
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Affiliation(s)
- Cai-Fei Pan
- Department of Anesthesiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China
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Cai SN, Zhu SM. [The effects of ketamine pretreated on cerebral edema and AQP4 expression after transient focal cerebral ischemia/reperfusion in rats]. Zhonghua Yi Xue Za Zhi 2010; 90:1648-1651. [PMID: 20979759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the effects of ketamine pretreatment on cerebral edema following brain ischemia reperfusion injury in rats and assess the involvement of Aquaporin 4 (AQP4) expression. METHODS Sixty-two healthy male Sprague-Dawley rats weighing 220 -250 g were randomly divided into 3 groups: sham operation group (group Sham, n = 18); saline group (group Vehicle, n = 22); ketamine pretreatment group (group Ketamine, n = 22) . The transient focal ischemia/reperfusion was induced by introducing a silicone-coated monofilament nylon suture from the right external carotid artery into the origin of the middle cerebral artery, removing it after 90 min. In group Ketamine, the rats were exposed to ketamine (5%, 1 mg x kg(-1) x min(-1)) for 30 min before suffered from cerebral ischemia. Similarly; in group Vehicle and group Sham, the animals received saline vehicle at the same time and infusion rate. After the neurologic exams were assessed at 24 h of reperfusion, the rats were sacrificed after anesthetized, and the brains were quickly removed. To estimate cerebral edema, the wet-dry ratio was measured. Western-blot was used to detect the expression of AQP4 in the border of the infarct region. RESULTS The neurologic function deficit was significantly serious in group Vehicle and group Ketamine compared to group Sham (P < 0.01). Ketamine pretreatment tended to improve neurologic outcome, but there was no statistical significance. The wet-dry weight ratio and AQP4 expression increased significantly in group Vehicle and group Ketamine III than those in group Sham (P < 0.01). Compared with saline vehicle, ketamine pretreatment did not decreased the wet-dry weight ratio significantly. AQP4 expression in group Ketamine was not significantly different from group Vehicle. CONCLUSION Ketamine pretreatment did not seem to improve the neurologic deficit outcome and attenuate edema, which was involved in no change of AQP4 expression.
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Affiliation(s)
- Shu-Nü Cai
- Department of Anesthesiology, Zhejiang Cancer Hospital, Hangzhou 310022, China
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Zhu SM, Xiong XX, Zheng YY, Pan CF. Propofol Inhibits Aquaporin 4 Expression Through a Protein Kinase C–Dependent Pathway in an Astrocyte Model of Cerebral Ischemia/Reoxygenation. Anesth Analg 2009; 109:1493-9. [DOI: 10.1213/ane.0b013e3181b893f3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Dahaba AA, Feng ZY, Zhu SM, Bornemann H, Rehak PH, Metzler H. The utility of using bispectral index monitoring as an early intraoperative indicator of initial poor graft function after orthotopic or split-graft liver transplantation. Gut 2009; 58:605-6. [PMID: 19299389 DOI: 10.1136/gut.2008.165118] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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Liu YM, Zhu SM, Wang KR, Feng ZY, Chen QL. Effect of tramadol on immune responses and nociceptive thresholds in a rat model of incisional pain. J Zhejiang Univ Sci B 2009; 9:895-902. [PMID: 18988309 DOI: 10.1631/jzus.b0820039] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To evaluate the effects of tramadol on the proinflammatory responses in a rat model of incisional pain by investigating its effects on nociceptive thresholds and serum interleukin-6 (IL-6) and IL-2 levels. METHODS Forty-two male Sprague-Dawley (SD) rats scheduled for plantar incision were randomly divided into 7 groups (n=6 in each group). Rats in Group 1 receiving general anesthesia with no incision were served as control; At 30 min before skin incision, Groups 2 to approximately 5 were given 5 ml normal saline or 1, 10, and 20 mg/kg tramadol, respectively, intraperitoneally (i.p.); Group 6 received 10 mg/kg tramadol after operation; Group 7 received 10 mg/kg tramadol before incision, followed by 200 microg/kg naloxone after operation. Mechanical allodynia was measured by electronic von Frey filament to evaluate the nociceptive thresholds 1 h before incision, and 1 h and 2 h after operation. Serum IL-6 and IL-2 levels were measured by enzyme-linked immunosorbent assay (ELISA) 2 h after operation. RESULTS Mechanical thresholds decreased significantly and serum IL-6 level increased significantly after operation in Group 2 compared with control (P<0.01), and these changes were reversed respectively by tramadol in a dose-dependent manner (P<0.05 and P<0.01, respectively). IL-2 level remained unchanged after operation in Group 2, but decreased in Group 3 (P<0.05), then gradually returned to the normal level in Groups 4 and 5. The intraperitoneally injected tramadol (10 and 20 mg/kg) produced a potent and dose-dependent antinocicptive effect on the lesioned paw. The antinocicptive effects of tramadol were partially antagonized by naloxone (200 microg/kg), suggesting an additional non-opioid mechanism. CONCLUSION The results suggest that tramadol could be a good choice for the treatment of pain under the conditions that immunosuppression may be particularly contraindicated.
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Affiliation(s)
- Yong-Min Liu
- Department of Anesthesiology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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Zheng YY, Lan YP, Tang HF, Zhu SM. Propofol pretreatment attenuates aquaporin-4 over-expression and alleviates cerebral edema after transient focal brain ischemia reperfusion in rats. Anesth Analg 2008; 107:2009-16. [PMID: 19020152 DOI: 10.1213/ane.0b013e318187c313] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cerebral edema is a major threat for stroke victims. Most studies have focused on the neuroprotective activities of propofol, addressing infarct volume rather than cerebral edema. Aquaporin-4 (AQP4) plays an important role in maintaining brain water homeostasis under various neurological insults. We explored the effect of propofol pretreatment on cerebral edema in a rat model of brain ischemia reperfusion and assessed the involvement of AQP4. METHODS To induce brain ischemia reperfusion, we introduced a silicone-coated monofilament nylon suture into the origin of the middle cerebral artery, withdrawing it after 90 min. Treatment groups (n = 32), received propofol (0.1 mL x kg(-1) x min(-1)) infusion for 30 min before occlusion; the vehicle group (n = 32) and the sham-operated group (n = 28), which received the intralipid vehicle at the same time and rate. To assess cerebral infarct volume, we used 2, 3, 5-triphenyl-tetrazolium chloride staining; wet-dry weight ratio was the basis for cerebral edema estimation, and we used immunohistochemistry and Western blot to detect AQP4 expression. RESULTS The wet-dry weight ratio decreased from 86.89% +/- 0.71% in the vehicle group (n = 6) to 72.42% +/- 0.74% in the propofol group (n = 6), corresponding to an average decrease of 16%. In parallel and based on immunohistochemical semi-quantification, the propofol group exhibited remarkable attenuation of AQP4 over-expression in the ischemic border zone compared with the vehicle group: 1.28 +/- 0.03 vs 1.40 +/- 0.05, n = 7, respectively; P < 0.05. Values derived from Western blot quantification were similarly decreased in the propofol group compared to the vehicle group: 20.85% +/- 4.18% vs 31.67% +/- 3.23%, n = 4, respectively; P < 0.05. However, infarct volume and neurologic deficit in postischemic rats in the propofol group were not statistically different from values in the vehicle group. CONCLUSIONS We conclude that prestroke treatment with propofol reduces postischemic cerebral edema in rats, possibly through inhibiting AQP4 over-expression in the boundary zone of ischemia.
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Affiliation(s)
- Yue-Ying Zheng
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, 310003, HangZhou, People's Republic of China
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Huang B, Zhou XY, Lu YP, Zhu ZF, Hou J, Sun JL, Xie GS, Zhu SM, Zheng HG. [Selective percutaneous dorsal root ganglion radiofrequency thermocoagulation guided by CT scanning in treatment of post-herpetic neuralgia]. Zhonghua Yi Xue Za Zhi 2008; 88:885-888. [PMID: 18756952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To present the experience in a technique used to treat intractable postherpetic neuralgia (PHN)-percutaneous dorsal root ganglion (DGR) radiofrequency thermocoagulation guided by CT scanning. METHODS Sixteen PHN patients underwent puncture of radiohealing needle into the superior 1/3 of the corresponding intervertebral foramen guided by CT. Electric stimulation test and impedance test were conducted to confirm the right spot. Radiofrequency heat coagulation therapy under the condition of 90 degrees C 90 s was performed for 3 cycles. Then mixture of betamethasone and lidocain was injected and the needle was pulled out. CT was conducted to observe if pneumothorax occurred. The patients were followed up for 2-16 months. RESULTS Radiofrequency thermocoagulation was performed on 45 target dorsal root ganglia in 16 PHN patients with the effect of immediate disappearance of hyperalgesia. Remaining spontaneous pain was seen in 5 cases, however, with decreases of attack frequency and severity. The visual analogue pain scale score was decreased from 7-9 before the procedure to 2-3 after the procedure. No relapse was found during the follow-up. CONCLUSION Selective percutaneous DRG radiofrequency thermocoagulation guided by CT scanning is effective in treatment of PHN.
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Affiliation(s)
- Bing Huang
- Department of Anesthesiology, First Affiliated Hospital of Jiaxing Medical College, Jiaxing 314000, China
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Dahaba AA, Worm HC, Zhu SM, Bao FP, Salah A, Zakaria S, Bornemann H, Stadlbauer V, Rehak PH, Metzler H, Stauber RE. Sensitivity and specificity of bispectral index for classification of overt hepatic encephalopathy: a multicentre, observer blinded, validation study. Gut 2008; 57:77-83. [PMID: 17698861 DOI: 10.1136/gut.2007.129130] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND The severity of hepatic encephalopathy is currently graded clinically using West Haven criteria and psychometric tests. OBJECTIVE To assess the discriminative power of the bispectral index (BIS) monitor to classify the degree and progression of hepatic encephalopathy. DESIGN A consecutive, multicentre, observer blinded validation study. SETTING Medical University of Graz (Graz, Austria), Zhejiang University First Affiliated Hospital (Hang Zhou, China), and Cairo University (Cairo, Egypt). PATIENTS 28 consecutive patients with hepatic encephalopathy were first enrolled at Medical University of Graz as a test set. The estimated BIS cut off values were subsequently tested in a validation set of 31 patients at Zhejiang University First Affiliated Hospital and 26 patients at Cairo University; 18 patients were reassessed later in a longitudinal study. Fifteen of 85 patients (18%) were excluded from the final analysis (11 became too agitated with high electromyographic activity; four fell asleep during the recording). RESULTS Applying the Austrian BIS cut off values of 85, 70, and 55 for discriminating West Haven grades 1 to 4 yielded agreement between BIS classification and West Haven grades in 40 of the 46 validation patients (87%), and in 16 of the 18 follow up patients (89%). Mean (SD) BIS values differed significantly between patients with West Haven grade 1 (90.2 (2.5)), grade 2 (78.4 (6.6)), grade 3 (63.2 (4.8)), and grade 4 (45.4 (5.0)). CONCLUSIONS BIS is a useful measure for grading and monitoring the degree of involvement of the central nervous system in patients with chronic liver disease.
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Affiliation(s)
- A A Dahaba
- Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, Auenbruggerplatz 29, A-8036 Graz, Austria.
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Zhu SJ, Han WL, Zhu SM, Zhou YF. [Protective effects of propofol preconditioning on cardiopulmonary bypass-induced apoptosis: report of 40 cases]. Zhonghua Yi Xue Za Zhi 2007; 87:2472-2475. [PMID: 18067807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE To investigate the protective effects of propofol preconditioning on cardiopulmonary bypass (CPB)-induced apoptosis and its possible mechanism. METHODS Forty patients undergoing CPB were randomly divided into 2 equal groups: propofol preconditioning group (Group P, pre-treated with propofol 2 mg/kg pre-operatively and 5 mg.kg(-1).h(-1) intra-operatively) and control group (Group C, pre-treated with midazolam 0.2 mg/kg pre- and 0.1 mg.kg(-1).h(-1) intra-operatively). Specimens of right auricle tissue were taken before and after CPB to undergo HE staining and electron microscopy to observe the changes of mitochondria. TUNEL technique was used to detect the apoptotic cells and the apoptotic index (AI) was calculated. Avidin biotin complex method was used to detect the expression of caspase-9 and caspase-3. RESULTS The rate of spontaneous restoration of beats of Group P was 65%, significantly higher than that of Group C (30%, P < 0.05). The amount used of dobutamine within 12 h post-operatively of Group P was 4.6 +/- 1.1 microg.kg(-1).h(-1), significantly lower than that of Group C (7.8 +/- 1.0 microg.kg(-1).h(-1), P < 0.05). The ICU stay time of Group P was 40 +/- 6 h. significantly shorter than that of Group C (58 +/- 7 h, P < 0.05). The specimens taken after CPB showed that in comparison with Group C the mitochondria were relatively intact with clear ridges and intermembrane spaces in Group P. The AI after CPB of Group C was (19.3 +/- 3.5)%, significantly higher than that before CPB [(7.1 +/- 1.4)%, P < 0.05] and the corresponding level of Group P [(10.9 +/- 1.4)%, P < 0.05]. The expression levels of Caspace-9 and Caspace-3 after CPO of Group C were both significantly higher than those before CPB (both P < 0.05), and the corresponding levels of Group P (both P < 0.05). CONCLUSION Propofol preconditioning significantly inhibits CPB-induced cardiomyocyte apoptosis and the mechanism is associated with protecting the mitochondria and down-regulating the expression of caspase-9 and caspases-3.
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Affiliation(s)
- Shao-Jun Zhu
- Department of Anesthesiology, First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
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Chen YZ, Zhu SM, He HL, Xu JH, Huang SQ, Chen QL. Do the lungs contribute to propofol elimination in patients during orthotopic liver transplantation without veno-venous bypass? Hepatobiliary Pancreat Dis Int 2006; 5:511-4. [PMID: 17085334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND The clearance of propofol is very rapid, and its transformation takes place mainly in the liver. Some reports indicated extrahepatic clearance of the drug and that the lungs are the likely place where the process occurs. This study was undertaken to compare the plasma concentrations of propofol both in the pulmonary and radial arteries after constant infusion during the dissection, anhepatic and reperfusion phases of orthotopic liver transplantation (OLT) without veno-venous bypass, attempting to investigate extrahepatic clearance and to determine whether the human lungs take part in the elimination of propofol. METHODS Fifteen patients undergoing OLT without veno-venous bypass were enrolled in the study, and propofol was infused via a forearm vein at a rate of 2 mg x kg-1 x h-1. Blood samples were simultaneously collected from pulmonary and radial arteries at the end of the first hepatic portal dissection (T0), at the clamping of the portal vein (T1), 30, and 60 minutes after the beginning of the anhepatic phase (T2, T3), and 30, 60, and 120 minutes after the unclamping of the new liver (T4, T5, T6). Plasma propofol concentrations were measured using a reversed-phase, high-performance liquid chromatographic method with fluorescence detection. RESULTS The concentrations of plasma propofol in the pulmonary and radial arteries at T2 and T3 rose significantly compared with T0 and T1 (P<0.01) respectively. After reperfusion, the drug concentrations at T4, T5 and T6 decreased significantly compared with T2, T3 (P<0.01) respectively. There were no significant differences in plasma propofol concentrations between the pulmonary and radial arteries at any time points. CONCLUSIONS Propofol is eliminated mainly by the liver, and also by extrahepatic organs. The lungs seem to be not a major site contributing to the extrahepatic metabolism of propofol in humans.
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Affiliation(s)
- Yi-Zhong Chen
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Feng ZY, Zhang J, Zhu SM, Zheng SS. Is there any difference in anesthetic management of different post-OLT stage patients undergoing nontransplant organ surgery? Hepatobiliary Pancreat Dis Int 2006; 5:368-73. [PMID: 16911933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Little information is available about anesthesia management of nontransplant organ surgery of recipients after adult liver transplantation. The aim of this study was to discuss the anesthesia management of recipients for different stages after liver transplantation. METHODS The medical records of 16 patients were reviewed after OLT scheduled for elective nontransplant organ surgery at our institution from September 2002 to October 2005. The patients were divided into perioperative stage (group A) and mid-term and long-term stage (group B) groups according to post-OLT time. The data of 16 patients preoperation, intraoperation and postoperation were analyzed. RESULTS The measurements of alanine transaminase (ALT), total bilirubin (TB), prothrombin time (PT), and lung infection were significantly higher in group A than in group B (P<0.05). The incidence of hyperglycaemia was significantly higher in group B than in group A (P<0.05). During operation the incidence of hypotension was significantly higher in group A than in group B (P<0.05). After operation, the number of patients in ICU was significantly larger and the extubation time was longer in group A than in group B. General anesthesia was induced in 14 patients, and regional anesthesia in 2 patients. CONCLUSIONS Regional or general anesthesia can be safely delivered to adult OLT recipients except for contraindications. Special considerations include protection of the function of important organs, correction of hemodynamic instability in perioperative stage patients after OLT, and measurement of the side-effects of immunosuppression in mid-term and long-term stage patients.
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Affiliation(s)
- Zhi-Ying Feng
- Department of Anesthesiology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Tang RQ, Zhao XZ, Shi YY, Tang W, Gu NF, Feng GY, Xing YL, Zhu SM, Sang H, Liang PJ, He L. Family-based association study of Epsin 4 and Schizophrenia. Mol Psychiatry 2006; 11:395-9. [PMID: 16402136 DOI: 10.1038/sj.mp.4001780] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Recently, Pimm et al. identified Epsin 4 on chromosome 5q33 as a susceptibility gene for schizophrenia in the British population, based on linkage and association evidence. In Pimm's case-control study, both the single polymorphisms and the individual haplotypes at the 5' end of the gene showed genetic association with schizophrenia. Here, we report the first study evaluating the relevance of Epsin 4 and schizophrenia outside the British population. Markers showing positive results in the original work as well as two additional polymorphisms were genotyped in 308 Han Chinese family trios. Transmission disequilibrium analysis was used to test for association of single-locus markers and multi-locus haplotypes with schizophrenia. Although no individual marker was significant at the P=0.05 level, the haplotypes detected in our samples, different from those previously reported, showed strong evidence of association (most significant global P=0.0021). Our results indicate the presence of a locus near the 5' end of Epsin 4 conferring susceptibility to the disease and provide further support for Epsin 4 as an important potential contributor to genetic risk in schizophrenia.
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Affiliation(s)
- R Q Tang
- Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, China
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Abstract
OBJECTIVE The aim of this study was to investigate the changes in plasma concentrations of propofol in three phases (the paleohepatic, anhepatic, and neohepatic phases) during orthotopic liver transplantation (OLT) using target-controlled infusion (TCI). METHODS Ten patients undergoing OLT without venovenous bypass were studied (age 29-53 years, weight 56-79 kg). After intubation, a non-hypnotic target concentration of propofol 0.5 microg ml(-1) using a Diprifusor pump (Zeneca Pharmaceuticals, Macclesfield, UK) was administered as a supplement anesthesia throughout the procedure. Plasma samples were obtained in each phase for propofol assay, respectively. Performance parameters for the Diprifusor system in each phase, the percentage median performance error (MDPE), the percentage median absolute performance error (MDAPE), and the percentage median absolute constancy error (MDACE) were evaluated. RESULTS In all patients, measured plasma propofol concentrations were several times higher than Diprifusor values in each phase during the procedure. In nine patients, propofol concentrations in the anhepatic phase were higher than those in the paleohepatic or neohepatic phase (P < 0.05). There were no significant differences between the paleohepatic and neohepatic phases. Interindividual variation of the plasma propofol concentrations was significant (P < 0.05). Percentage median performance error of Diprifusor in each phase, as well as MDAPE, was large (>300%) and was significantly higher in the anhepatic phase (P < 0.01), whereas MDACE was relatively small and there was no significant difference between phases. CONCLUSIONS Models used by Diprifusor are not suitable for liver transplantation patients. A further study should be performed in order to determine all pharmacokinetic parameters of propofol in these patients.
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Affiliation(s)
- J Wu
- Department of Anesthesiology, 1st Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, China.
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Yang MS, Yu L, Guo TW, Zhu SM, Liu HJ, Shi YY, Gu NF, Feng GY, He L. Evidence for association between single nucleotide polymorphisms in T complex protein 1 gene and schizophrenia in the Chinese Han population. J Med Genet 2004; 41:e63. [PMID: 15121791 PMCID: PMC1735778 DOI: 10.1136/jmg.2003.011023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wen XH, Kong HY, Zhu SM, Xu JH, Huang SQ, Chen QL. Plasma levels of tumor necrotic factor-alpha and interleukin-6, -8 during orthotopic liver transplantation and their relations to postoperative pulmonary complications. Hepatobiliary Pancreat Dis Int 2004; 3:38-41. [PMID: 14969835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Pulmonary complications after orthotopic liver transplantation (OLT) include high morbidity and mortality. Experimental data have suggested hepatic ischemia and reperfusion are induced by pro-inflammatory cytokines. The high level of inflammatory cytokines might additionally influence pulmonary capillary fluid filtration. The objectives of this study were to measure the concentrations of tumor necrotic factor-alpha (TNF-alpha), interleukin-6 (IL-6) and interleukin-8 (IL-8) during OLT and to investigate the relationship between these cytokines and postoperative pulmonary complications. METHODS Twenty-two patients undergoing OLT were divided into two groups according to whether they had postoperative pulmonary complications: group A consisting of 8 patients with postoperative pulmonary complications, and group B consisting of 14 patients without postoperative pulmonary complications. Enzyme-linked immunoassay (ELISA) was used to determine serum TNF-alpha, IL-6 and IL-8. Blood samples were taken at the beginning of operation (T0), clamping and cross-clamping of the inferior cava and portal vein (T1, T2), 90 minutes and 3 hours after reperfusion (T3, T4) and 24 hours after operation (T5). RESULTS The level of PaO2/FiO2 in group A was lower than that in group B (P<0.05). The concentrations of TNF-alpha, IL-6 and IL-8 in the two groups increased rapidly at T2, peaked at T3, decreased rapidly after T3 until 24 hours after operation. The concentrations of TNF-alpha, IL-6 and IL-8 in group A were higher than those in group B at T2, T3, and T4 (P<0.05). CONCLUSION After un-clamping of the inferior cava and portal vein, the serum concentrations of TNF-alpha, IL-6 and IL-8 increased may be related to pulmonary injury after hepatic ischemic reperfusion.
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Affiliation(s)
- Xiao-Hong Wen
- Department of Anesthesia, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China.
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