1
|
Pan W, Yun T, Ouyang X, Ruan Z, Zhang T, An Y, Wang R, Zhu P. A blood-based multi-omic landscape for the molecular characterization of kidney stone disease. Mol Omics 2024. [PMID: 38623715 DOI: 10.1039/d3mo00261f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Kidney stone disease (KSD, also named renal calculi, nephrolithiasis, or urolithiasis) is a common urological disease entailing the formation of minerals and salts that form inside the urinary tract, frequently caused by diabetes, high blood pressure, hypertension, and monogenetic components in most patients. 10% of adults worldwide are affected by KSD, which continues to be highly prevalent and with increasing incidence. For the identification of novel therapeutic targets in KSD, we adopted high-throughput sequencing and mass spectrometry (MS) techniques in this study and carried out an integrative analysis of exosome proteomic data and DNA methylation data from blood samples of normal and KSD individuals. Our research delineated the profiling of exosomal proteins and DNA methylation in both healthy individuals and those afflicted with KSD, finding that the overexpressed proteins and the demethylated genes in KSD samples are associated with immune responses. The consistency of the results in proteomics and epigenetics supports the feasibility of the comprehensive strategy. Our insights into the molecular landscape of KSD pave the way for a deeper understanding of its pathogenic mechanism, providing an opportunity for more precise diagnosis and targeted treatment strategies for KSD.
Collapse
Affiliation(s)
- Weibing Pan
- Department of Urology, Shenzhen Pingshan People's Hospital, Shenzhen, Guangdong 518118, China
| | - Tianwei Yun
- Department of Urology, Shenzhen Pingshan People's Hospital, Shenzhen, Guangdong 518118, China
| | - Xin Ouyang
- Department of Laboratory Medicine, Shenzhen Pingshan People's Hospital, Shenzhen, Guangdong 518118, China.
| | - Zhijun Ruan
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518020, China.
| | - Tuanjie Zhang
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518020, China.
| | - Yuhao An
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518020, China.
| | - Rui Wang
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518020, China.
| | - Peng Zhu
- Department of Laboratory Medicine, Shenzhen Pingshan People's Hospital, Shenzhen, Guangdong 518118, China.
| |
Collapse
|
2
|
Xu W, Ouyang X, Lin Y, Lai X, Zhu J, Chen Z, Liu X, Jiang X, Chen C. Prediction of acute kidney injury after cardiac surgery with fibrinogen-to-albumin ratio: a prospective observational study. Front Cardiovasc Med 2024; 11:1336269. [PMID: 38476379 PMCID: PMC10927956 DOI: 10.3389/fcvm.2024.1336269] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/25/2024] [Indexed: 03/14/2024] Open
Abstract
Background The occurrence of acute kidney injury (AKI) following cardiac surgery is common and linked to unfavorable consequences while identifying it in its early stages remains a challenge. The aim of this research was to examine whether the fibrinogen-to-albumin ratio (FAR), an innovative inflammation-related risk indicator, has the ability to predict the development of AKI in individuals after cardiac surgery. Methods Patients who underwent cardiac surgery from February 2023 to March 2023 and were admitted to the Cardiac Surgery Intensive Care Unit of a tertiary teaching hospital were included in this prospective observational study. AKI was defined according to the KDIGO criteria. To assess the diagnostic value of the FAR in predicting AKI, calculations were performed for the area under the receiver operating characteristic curve (AUC), continuous net reclassification improvement (NRI), and integrated discrimination improvement (IDI). Results Of the 260 enrolled patients, 85 developed AKI with an incidence of 32.7%. Based on the multivariate logistic analyses, FAR at admission [odds ratio (OR), 1.197; 95% confidence interval (CI), 1.064-1.347, p = 0.003] was an independent risk factor for AKI. The receiver operating characteristic (ROC) curve indicated that FAR on admission was a significant predictor of AKI [AUC, 0.685, 95% CI: 0.616-0.754]. Although the AUC-ROC of the prediction model was not substantially improved by adding FAR, continuous NRI and IDI were significantly improved. Conclusions FAR is independently associated with the occurrence of AKI after cardiac surgery and can significantly improve AKI prediction over the clinical prediction model.
Collapse
Affiliation(s)
- Wang Xu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yingxin Lin
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
- Peking University Shenzhen Hospital, Shenzhen, China
| | - Xue Lai
- Day Surgery Center, Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Junjiang Zhu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zeling Chen
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xiaolong Liu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Xinyi Jiang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong Province, China
- Department of Critical Care Medicine, Shenzhen People’s Hospital, Shenzhen, Guangdong Province, China
| |
Collapse
|
3
|
Lu B, Chen X, Ouyang X, Li Z, Yang X, Khan Z, Duan S, Shen H. The roles of novel chitooligosaccharide-peanut oligopeptide carbon dots in improving the flavor quality of Chinese cabbage. Food Chem X 2023; 20:100963. [PMID: 38144843 PMCID: PMC10740055 DOI: 10.1016/j.fochx.2023.100963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/11/2023] [Accepted: 10/23/2023] [Indexed: 12/26/2023] Open
Abstract
Carbon dots (CDs), a novel type of nanomaterial, play crucial roles in the agriculture field. However, it remains unclear their impacts on the flavor quality of vegetables. The present study synthesized a novel chitooligosaccharide-peanut oligopeptide-carbon dots (COS-POP-CDs) material through the chitooligosaccharide (COS) and peanut oligopeptide (POP) high temperature Maillard reactions and studied its effect on the flavor quality of Chinese cabbage (Choy sum). Results indicated that COS-POP-CDs emit blue visible light that readily absorbed by chloroplasts, while also demonstrating some degree of antibacterial and antioxidant activities. After transplanting of Choy sum, foliar spraying 0.12 mg/mL COS-POP-CDs twice can increase the content of soluble proteins, Vitamin C, and enhance the strawberry and spicy flavors of Choy Sum. After harvest of Choy Sum, foliar spraying 0.12 mg/mL COS-POP-CDs once can slow down the spoilage. These results suggest that COS-POP-CDs have significant potential to improve crop quality.
Collapse
Affiliation(s)
- Bosi Lu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xiaojuan Chen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
- College of Agriculture, Guangxi University, Nanning 530004, China
| | - Xin Ouyang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Zhiming Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Xujian Yang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Zaid Khan
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Songpo Duan
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Hong Shen
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| |
Collapse
|
4
|
Wang Y, Yao F, Chen S, Ouyang X, Lan J, Wu Z, Wang Y, Chen J, Wang X, Chen C. Optimal Teicoplanin Dosage Regimens in Critically Ill Patients: Population Pharmacokinetics and Dosing Simulations Based on Renal Function and Infection Type. Drug Des Devel Ther 2023; 17:2259-2271. [PMID: 37546521 PMCID: PMC10404122 DOI: 10.2147/dddt.s413662] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/05/2023] [Indexed: 08/08/2023] Open
Abstract
Purpose To develop a population pharmacokinetic model describing teicoplanin concentrations in patients hospitalized in intensive care unit (ICU) and to perform Monte Carlo simulations to provide detailed dosing regimens of teicoplanin. Methods This single-center, prospective, observational study was conducted on 151 patients in ICU with 347 plasma samples. The population pharmacokinetics model was established and various covariates were evaluated. The probability of target attainment (PTA) of various proposal dosing regimens was calculated by Monte Carlo simulations. Results The two-compartment model adequately described teicoplanin concentration-time data. The estimated glomerular filtration rate (eGFR) associated with systemic clearance (CL) was the only covariate included in the final model. The estimate of CL was 0.838 L/h, with the eGFR adjustment factor of 0.00823. The volume of the central compartment (Vc), inter-compartmental clearance (Q) and volumes of the peripheral compartments (Vp) were 14.4 L, 3.08 L/h and 51.6 L, respectively. The simulations revealed that the standard dosage regimen was only sufficient for the patients with severe renal dysfunction (eGFR ≤ 30 mL/min/1.73 m2) to attain target trough concentration (Cmin, PTA 52.8%). When eGFR > 30 mL/min/1.73 m2, increasing dose and the administration times of loading doses were the preferred options to achieve target Cmin based on the renal function and types of infection. Conclusion The most commonly used standard dosage regimen was insufficient for all ICU patients. Our study provided detailed dosing regimens of teicoplanin stratified by eGFR and types of infection for ICU patients.
Collapse
Affiliation(s)
- Yifan Wang
- Department of Critical Care Medicine, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, People’s Republic of China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Fen Yao
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Shenglong Chen
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Jinhua Lan
- Department of Pharmacy, General Hospital of Southern Theatre Command, Guangzhou, 510010, People’s Republic of China
| | - Zheng Wu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Yirong Wang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Jingchun Chen
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Xipei Wang
- Research Center of Medical Sciences, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- Guangdong Provincial Key Laboratory of Clinical Pharmacology, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Chunbo Chen
- Department of Critical Care Medicine, Shenzhen People’s Hospital, The Second Clinical Medical College of Jinan University, The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518020, People’s Republic of China
| |
Collapse
|
5
|
Zhong XC, Ouyang X, Liao YB, Tao MZ, Peng J, Long ZQ, Gao XJ, Cao Y, Luo MH, Peng GJ, Zhou ZX, Lei GX. [Research progress on biofilm microecology in chronic suppurative otitis media]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:621-625. [PMID: 37339905 DOI: 10.3760/cma.j.cn115330-20230412-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Affiliation(s)
- X C Zhong
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - X Ouyang
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Y B Liao
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - M Z Tao
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - J Peng
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - Z Q Long
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Chenzhou Research and Development Center of Diagnosis and Treatment Technology of Hearing and Speech Disease, Chenzhou 423000, Hunan Province, China
| | - X J Gao
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Chenzhou Research and Development Center of Diagnosis and Treatment Technology of Hearing and Speech Disease, Chenzhou 423000, Hunan Province, China
| | - Y Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - M H Luo
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Chenzhou Research and Development Center of Diagnosis and Treatment Technology of Hearing and Speech Disease, Chenzhou 423000, Hunan Province, China
| | - G J Peng
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Chenzhou Research and Development Center of Diagnosis and Treatment Technology of Hearing and Speech Disease, Chenzhou 423000, Hunan Province, China Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan Province, Chenzhou 423000, Hunan Province, China
| | - Z X Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China
| | - G X Lei
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Xiangnan University, Chenzhou 423000, Hunan Province, China Clinical College of Xiangnan University, Chenzhou 423000, Hunan Province, China Chenzhou Research and Development Center of Diagnosis and Treatment Technology of Hearing and Speech Disease, Chenzhou 423000, Hunan Province, China Key Laboratory of Medical Imaging and Artificial Intelligence of Hunan Province, Chenzhou 423000, Hunan Province, China Hunan Engineering Research Center of Advanced Embedded Computing and Intelligent Medical Systems, Chenzhou 423000, Hunan Province, China
| |
Collapse
|
6
|
Yang L, Zhou H, Ouyang X, Zhang F, Feng J, Zhang J. [Reverse partial pulmonary resection: a new surgical approach for pediatric pulmonary cysts]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:649-653. [PMID: 37202203 DOI: 10.12122/j.issn.1673-4254.2023.04.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVE To evaluate the safety and efficacy of reverse partial lung resection for treatment of pediatric pulmonary cysts combined with lung abscesses or thoracic abscess. METHODS We retrospectively analyzed the clinical data of children undergoing reverse partial lung resection for complex pulmonary cysts in our hospital between June, 2020 and June, 2021.During the surgery, the patients lay in a lateral position, and a 3-5 cm intercostal incision was made at the center of the lesion, through which the pleura was incised and the fluid or necrotic tissues were removed.The anesthesiologist was instructed to aspirate the sputum in the trachea to prevent entry of the necrotic tissues in the trachea.The cystic lung tissue was separated till reaching normal lung tissue on the hilar side.The proximal end of the striated tissue in the lesion was first double ligated with No.4 silk thread, the distal end was disconnected, and the proximal end was reinforced with continuous sutures with 4-0 Prolene thread.The compromised lung tissues were separated, and the thoracic cavity was thoroughly flushed followed by pulmonary inflation, air leakage management and incision suture. RESULTS Sixteen children aged from 3 day to 2 years underwent the surgery, including 3 with simple pulmonary cysts, 11 with pulmonary cysts combined with pulmonary or thoracic abscess, 1 with pulmonary cysts combined with tension pneumothorax and left upper lung bronchial defect, and 1 with pulmonary herpes combined with brain tissue heterotaxy.All the operations were completed smoothly, with a mean operation time of 129 min, an mean hospital stay of 11 days, and a mean drainage removal time of 7 days.All the children recovered well after the operation, and 11 of them had mild air leakage.None of the children had serious complications or residual lesions or experienced recurrence of infection after the operation. CONCLUSION Reverse partial lung resection is safe and less invasive for treatment of complex pediatric pulmonary cysts complicated by infections.
Collapse
Affiliation(s)
- L Yang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - H Zhou
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - X Ouyang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - F Zhang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - J Feng
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - J Zhang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| |
Collapse
|
7
|
Li X, Song L, Liu Q, Ouyang X, Mao T, Lu H, Liu L, Liu X, Chen W, Liu G. Product, building, and infrastructure material stocks dataset for 337 Chinese cities between 1978 and 2020. Sci Data 2023; 10:228. [PMID: 37080990 PMCID: PMC10119088 DOI: 10.1038/s41597-023-02143-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/11/2023] [Indexed: 04/22/2023] Open
Abstract
Reliable city-level product, building, and infrastructure material stocks data are essential for understanding historical material use patterns, benchmarking material efficiency, and informing future recycling potentials. However, such urban material stocks data are often limited, due primarily to unavailable, inconsistent, or noncontinuous city-level statistics. Here, we provided such an Urban Product, Building, and Infrastructure Material Stocks (UPBIMS) dataset for China, a country that has undergone a remarkable urbanization process in the past decades, by collating different official statistics and applying various gap-filling methods. This dataset contains the stock of 24 materials contained in 10 types of products, buildings, and infrastructure in all 337 prefecture-level cities in China from 1978 to 2020. This quality controlled and unified dataset is the first of its kind with such a full coverage of all prefecture-level Chinese cities and can be used in a variety of applications, for example in urban geography, industrial ecology, circular economy, and climate change mitigation. Every piece of data is tagged with its source and the dataset will be periodically updated.
Collapse
Affiliation(s)
- Xiang Li
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lulu Song
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 361021, Xiamen, Fujian, China
- Xiamen Key Lab of Urban Metabolism, 361021, Xiamen, Fujian, China
| | - Qiance Liu
- Department of Green Technology, University of Southern Denmark, Odense, 5230, Denmark
| | - Xin Ouyang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting Mao
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 361021, Xiamen, Fujian, China
| | - Haojie Lu
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 361021, Xiamen, Fujian, China
| | - Litao Liu
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaojie Liu
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Weiqiang Chen
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Key Lab of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, 361021, Xiamen, Fujian, China.
- Xiamen Key Lab of Urban Metabolism, 361021, Xiamen, Fujian, China.
| | - Gang Liu
- College of Urban and Environmental Sciences, Peking University, 100871, Beijing, China.
| |
Collapse
|
8
|
Shao X, Li J, Zhang H, Zhang X, Sun C, Ouyang X, Wang Y, Wu X, Chen C. Anti-inflammatory effects and molecular mechanisms of bioactive small molecule garlic polysaccharide. Front Nutr 2023; 9:1092873. [PMID: 36698476 PMCID: PMC9868249 DOI: 10.3389/fnut.2022.1092873] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023] Open
Abstract
Although garlic polysaccharides have been found to possess anti-inflammatory activities, anti-inflammatory study on small molecule water-soluble garlic polysaccharide (WSGP) is few. In this study, a novel WSGP with a molecular weight of 1853 Da was isolated by DEAE-52 and Sephadex G-100 column and the chemical composition was identified by monosaccharide composition and methylation analysis. Furthermore, the antioxidant effects of WSGP and the potential molecular mechanisms on LPS-induced inflammatory responses in RAW264.7 macrophage cells were investigated. The results showed that WSGP has strong antioxidant activity, such as DPPH, hydroxyl, superoxide anion, ABTS radical scavenging capacity, Fe2+ chelating ability and reducing power. Meanwhile, WSGP could considerably suppress the manufacturing of NO and the mRNA and protein expression degrees of IL-6, TNF-α, and IL-1β in LPS inspired RAW264.7 macrophages WSGP could significantly suppress the production of NO and the mRNA and protein expression levels of IL-1β, IL-6, and TNF-α in LPS stimulated RAW264.7 macrophage cells (p < 0.05). In addition, the phosphorylated IκB-α, p65, and STAT3 proteins were significantly increased in LPS-induced macrophages, while this trend was significantly reversed by WSGP treatment in a concentration-dependent manner (p < 0.05). Consequently, WSGP supplementation might reduce LPS-induced inflammatory responses by suppressing proinflammatory cytokines and NF-κB and STAT3 pathway activation. The finding of this research would give scientific guidelines for the judicious use of small molecular garlic polysaccharide in anti-inflammatory treatments.
Collapse
Affiliation(s)
- Xin Shao
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming, China,Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Jialong Li
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Huidan Zhang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xuhui Zhang
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Chongzhen Sun
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yong Wang
- Department of Food Science and Engineering, Jinan University, Guangzhou, China
| | - Xiyang Wu
- Department of Food Science and Engineering, Jinan University, Guangzhou, China,Xiyang Wu ✉
| | - Chunbo Chen
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming, China,Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China,Department of Critical Care Medicine, Shenzhen People's Hospital, Shenzhen, China,*Correspondence: Chunbo Chen ✉
| |
Collapse
|
9
|
Zhu L, Zong X, Shi X, Ouyang X. Association between Intrinsic Capacity and Sarcopenia in Hospitalized Older Patients. J Nutr Health Aging 2023; 27:542-549. [PMID: 37498101 DOI: 10.1007/s12603-023-1946-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/11/2023] [Indexed: 07/28/2023]
Abstract
OBJECTIVES This study aimed to clarify the association between intrinsic capacity (IC) and sarcopenia in hospitalized older patients. DESIGN A cross-sectional study. SETTING Hospital-based. PARTICIPANTS This study included 381 inpatients aged ≥ 60 years (225 men and 156 women). MEASUREMENTS IC was evaluated in five domains defined by the World Health Organization: cognition (Mini-Mental State Examination), locomotion (Short Physical Performance Battery test), vitality (Short-Form Mini Nutritional Assessment), sensory (self-reported hearing and vision) and psychological (5-item Geriatric Depression Scale) capacities. IC composite score (0-5) was calculated based on five domains, with lower scores representing greater IC. Sarcopenia was defined in accordance with the criteria recommended by the Asian Working Group for Sarcopenia (AWGS) 2019. Multiple linear and logistic regressions were performed to explore the associations between IC composite score and IC domains with sarcopenia and its defining components. RESULTS The mean age of 381 patients included was 81.95±8.42 years. Of them, 128 (33.6%) patients had sarcopenia. The median IC composite score was 1 (1, 2). Cognition, locomotion, vitality, sensory and psychological capacities were impaired in 22.6%, 63.5%, 18.9%, 27.3% and 11.3% of patients. Multiple linear regression analyses showed that favorable IC domain scores in cognition, locomotion and vitality were associated with a stronger handgrip strength. A higher vitality score was associated with a greater appendicular skeletal muscle mass index (ASMI), and a higher locomotion score was associated with a greater gait speed. The multiple logistic regression analysis showed that only vitality impairment was associated with sarcopenia. A higher IC composite score was associated with higher risks of sarcopenia, as well as low ASMI, handgrip strength and gait speed. CONCLUSION This study indicated that a more serious impairment of IC was associated with a greater risk of sarcopenia. Vitality was the domain most strongly associated with sarcopenia. IC may be employed to detect and manage sarcopenia.
Collapse
Affiliation(s)
- L Zhu
- Xiaojun Ouyang, Department of Geriatrics, Geriatric Hospital of Nanjing Medical University, Nanjing, China, E-mail:
| | | | | | | |
Collapse
|
10
|
Liu H, Xie H, Li C, Wang L, Chen Q, Ouyang X, Yan C. Diaporisoindole B Reduces Lipid Accumulation in THP-1 Macrophage Cells via MAPKs and PPARγ-LXRα Pathways and Promotes the Reverse Cholesterol Transport by Upregulating SR-B1 and LDLR in HepG2 Cells. J Nat Prod 2022; 85:2769-2778. [PMID: 36399085 DOI: 10.1021/acs.jnatprod.2c00715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Diaporisoindole B (DPB), an isoprenylisoindole alkaloid isolated from the mangrove endophytic fungus Diaporthe sp. SYSU-HQ3, has been proved to have a good anti-inflammatory activity in macrophage cells. In this study, we found that DPB was able to reduce lipid accumulation in THP-1 macrophage-derived foam cells. DPB could inhibit the lipid influx-related gene CD36 and increase the expression of lipid efflux-related genes ATP binding cassette transporter A1 (ABCA1), ATP binding cassette transporter G1 (ABCG1), and scavenger receptor B1 (SR-B1). Moreover, DPB elevated low-density lipoprotein receptor (LDLR) protein expression in HepG2 cells, which can increase the transport of LDL. Meanwhile, DPB could downregulate the expression levels of proteins related to cholesterol and fatty acid synthesis. Further study showed that DPB could activate peroxisome proliferator-activated receptor gamma (PPARγ) and inhibit mitogen-activated protein kinase (MAPK) phosphorylation. Taken together, our findings demonstrated that DPB could reduce lipid accumulation in THP-1 macrophage cells by reducing the intake of lipids and promoting the efflux of lipids and also could promote the reverse cholesterol transport (RCT) mechanism by upregulating SR-B1 and LDLR in HepG2 cells.
Collapse
Affiliation(s)
- Hongju Liu
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Huiyi Xie
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Changqun Li
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Lingling Wang
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Qiling Chen
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Xin Ouyang
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| | - Chong Yan
- School of Pharmacy, Guangdong Medical University, 1 Xincheng Avenue, Dongguan 523808, People's Republic of China
| |
Collapse
|
11
|
Shuai C, Yang F, Wang W, Shan J, Chen Z, Ouyang X. Promoting charging safety of electric bicycles via machine learning. iScience 2022; 26:105786. [PMID: 36594019 PMCID: PMC9804133 DOI: 10.1016/j.isci.2022.105786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 11/23/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022] Open
Abstract
The worldwide penetration of electric bicycles has caused numerous charging accidents; however, online diagnosing charging faults remains challenging because of non-standard chargers, non-uniform communication manners and inaccessible battery inner status. The development of Internet of Things enables to acquire the input current information of chargers in the cloud platform, thereby supplying an alternative perspective to excavate underlying charge abnormalities. Through analyzing 181,282 charge records collected from the power-grid side, we establish an update-to-date deep neural network algorithm, which can automatically capture these charge feature variables, determine their dependencies and identify abnormal charge behaviors. Based on the only input current sequences, the algorithm can effectively diagnose the charging fault with the average accuracy of 85%, efficiently ensuring the charging safety of more than 20 million E-bicycles after substantial validations. Besides, this diagnosis framework can be extended to the real-time charge safety detection of electric vehicles and other similar energy storage systems.
Collapse
Affiliation(s)
- Chunyan Shuai
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650050, China
| | - Fang Yang
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650050, China
| | - Wencong Wang
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650050, China
| | - Jun Shan
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650050, China
| | - Zheng Chen
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming 650050, China,Corresponding author
| | - Xin Ouyang
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650050, China,Corresponding author
| |
Collapse
|
12
|
Zuo ZC, Wang LD, Peng K, Yang J, Li X, Zhong Z, Zhang HM, Ouyang X, Xue Q. Development and Validation of a Nomogram for Predicting the 1-, 3-, and 5-year Survival in Patients with Acinar-predominant Lung Adenocarcinoma. Curr Med Sci 2022; 42:1178-1185. [PMID: 36542324 DOI: 10.1007/s11596-022-2672-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 11/02/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE This study aimed to develop a nomogram to predict the overall survival (OS) of patients with acinar-predominant adenocarcinoma (APA). METHODS Data from patients with APA obtained from the Surveillance, Epidemiology, and End Results (SEER) database between 2008 and 2016 were used. Significant prognostic factors were incorporated to construct a nomogram for predicting the 1-, 3-, and 5-year OS in these patients. The discrimination and calibration abilities of the nomogram were assessed using a C-index and calibration curves, respectively. RESULTS A total of 2242 patients with APA were randomly divided into a training cohort (n=1576) and validation cohort (n=666). The independent prognostic factors for OS incorporated into the nomogram included marital status, age, gender, differentiation grade, T stage, N stage, and M stage. The nomogram showed good prediction capability, as indicated by the C-index [0.713, 95% confidence interval (CI): 0.705-0.721 in the training cohort, and 0.662, 95% CI: 0.649-0.775 in the validation cohort]. The calibration curves demonstrated that the 1-, 3-, and 5-year OS probabilities were consistent between the observed and predicted outcome frequencies. Patients were divided into the high-risk and low-risk groups with the former showing significantly worse survival than the latter (P<0.001). CONCLUSION Using the SEER database, a nomogram was established to predict the 1-, 3-, and 5-year OS of patients with APA and was superior to the tumor size, lymph node, and metastasis staging system in terms of evaluating long-term prognosis.
Collapse
Affiliation(s)
- Zhi-Chao Zuo
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, 411000, China
| | - Li-de Wang
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ke Peng
- Department of Spine Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Jing Yang
- Department of Plastic Surgery, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, 441000, China
| | - Xiong Li
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, 411000, China
| | - Zhi Zhong
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, 411000, China
| | - Huan-Ming Zhang
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, 411000, China
| | - Xin Ouyang
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, 411000, China.
| | - Qi Xue
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| |
Collapse
|
13
|
Ouyang X, He Z, Fang H, Zhang H, Yin Q, Hu L, Gao F, Yin H, Hao T, Hou Y, Wu Q, Deng J, Xu J, Wang Y, Chen C. A protein encoded by circular ZNF609 RNA induces acute kidney injury by activating the AKT/mTOR-autophagy pathway. Mol Ther 2022; 30:3500. [DOI: 10.1016/j.ymthe.2022.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
14
|
Ouyang X, Xu C. Targeting the (pro)renin receptor in cancers: from signaling to pathophysiological effects. J Cancer Res Clin Oncol 2022; 149:2595-2605. [PMID: 36153775 DOI: 10.1007/s00432-022-04373-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 09/19/2022] [Indexed: 10/14/2022]
Abstract
Cancer is a major public health problem, currently affecting hundreds of millions of people worldwide, and its clinical results are unpredictable, partly due to the lack of reliable biomarkers of cancer progression. Recently, it has been reported that (pro)renin receptor (PRR), as a new biomarker, plays an important role in different types of cancer, such as colorectal cancer, breast cancer, glioma, aldosterone-producing adenoma, endometrial cancer, urothelial cancer, and pancreatic ductal adenocarcinoma. In order to comprehensively and systematically understand the relationship and role of PRR with various cancers, this review will summarize the current research on targeting PRR in cancer from signaling to pathophysiological effects, including the correlation between PRR/sPRR expression level and different cancers, potential mechanisms regulated by PRR in the progress of cancers, and PRR in cancer treatment. PRR can be a novel and promising biomarker and potential therapeutic target for diagnosis, treatment, and prognosis in cancer, which is worthy of extensive development and application in clinics.
Collapse
|
15
|
Ouyang X, He Z, Fang H, Zhang H, Yin Q, Hu L, Gao F, Yin H, Hao T, Hou Y, Wu Q, Deng J, Xu J, Wang Y, Chen C. A protein encoded by circular ZNF609 RNA induces acute kidney injury by activating the AKT/mTORautophagy pathway. Mol Ther 2022:S1525-0016(22)00561-5. [PMID: 36110046 DOI: 10.1016/j.ymthe.2022.09.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/28/2022] [Accepted: 09/12/2022] [Indexed: 01/18/2023] Open
Abstract
Autophagy plays a crucial role in the development and progression of ischemic acute kidney injury (AKI). However, the function and mechanism of circular RNAs (circRNAs) in the regulation of autophagy in ischemic AKI remain unexplored. Herein, we find that circ-ZNF609, originating from the ZNF609 locus, is highly expressed in the kidney after ischemia/reperfusion injury, and urinary circ-ZNF609 is a moderate predictor for AKI in heart disease patients. Overexpression of circ-ZNF609 can activate AKT3/mTOR signaling and induce autophagy flux impairment and cell apoptosis while inhibiting proliferation in HK-2 cells, which is blocked by silencing circ-ZNF609. Mechanistically, circ-ZNF609 encodes a functional protein consisting of 250 amino acids (aa), termed ZNF609-250aa, the overexpression of which can activate AKT3/mTOR signaling and induce autophagy flux impairment and cell apoptosis in HK-2 cells in vitro and in AKI kidneys in vivo. The blockade of AKT and mTOR signaling with pharmacological inhibitors is capable of reversing ZNF609-250aa-induced autophagy flux impairment and cell apoptosis in HK-2 cells. The present study demonstrates that highly expressed circ-ZNF609-encoded ZNF609-250aa induces cell apoptosis and AKI by impairing the autophagy flux via an AKT/mTOR-dependent mechanism. These findings imply that targeting circ-ZNF609 may be a novel therapy for ischemic AKI.
Collapse
Affiliation(s)
- Xin Ouyang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China
| | - Zhimei He
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Heng Fang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Huidan Zhang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Qi Yin
- CookGene Biosciences Center, Guangzhou 510320, Guangdong, China; Forevergen Biosciences Center, Guangzhou 510320, Guangdong, China
| | - Linhui Hu
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming 525000, Guangdong, China; Department of Scientific Research Center, Maoming People's Hospital, Maoming 525000, Guangdong, China
| | - Fei Gao
- CookGene Biosciences Center, Guangzhou 510320, Guangdong, China; Forevergen Biosciences Center, Guangzhou 510320, Guangdong, China
| | - Hao Yin
- CookGene Biosciences Center, Guangzhou 510320, Guangdong, China; Forevergen Biosciences Center, Guangzhou 510320, Guangdong, China
| | - Taofang Hao
- CookGene Biosciences Center, Guangzhou 510320, Guangdong, China; Forevergen Biosciences Center, Guangzhou 510320, Guangdong, China
| | - Yating Hou
- Department of Critical Care Medicine, Maoming People's Hospital, Maoming 525000, Guangdong, China
| | - Qingrui Wu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Jia Deng
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China
| | - Jing Xu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China
| | - Yirong Wang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China; Research Center of Medical Sciences, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou 510080, Guangdong, China; Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China; Department of Critical Care Medicine, Maoming People's Hospital, Maoming 525000, Guangdong, China; The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China.
| |
Collapse
|
16
|
Ouyang X, Wu P, Deng J, Ma Q, Dong X, Yu W, Liu G, Wang J, Liu L. Flexible solar absorber using hydrophile/hydrophobe amphipathic Janus nanofiber as building unit for efficient vapor generation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
17
|
Liu Q, Sun K, Ouyang X, Sen B, Liu L, Dai T, Liu G. Tracking Three Decades of Global Neodymium Stocks and Flows with a Trade-Linked Multiregional Material Flow Analysis. Environ Sci Technol 2022; 56:11807-11817. [PMID: 35920659 DOI: 10.1021/acs.est.2c02247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Neodymium (Nd), an essential type of rare earth element, has attracted increasing attention in recent years due to its significant role in emerging technologies and its globally imbalanced demand and supply. Understanding the global and regional Nd stocks and flows would thus be important for understanding and mitigating potential supply risks. In this work, we applied a trade-linked multiregional material flow analysis to map the global and regional neodymium cycles from 1990 to 2020. We reveal increasingly complex trade patterns of Nd-containing products and a clearly dominant but slightly weakening role of China in the global Nd trade (for both raw materials and semi- and final products) along the life cycle in the last 30 years. A total of 880 kt Nd was mined accumulatively and flowed into the global socioeconomic system, mainly as NdFeB permanent magnets (79%) in semi-products and conventional vehicles and home appliances (together 48%) in final products. Approximately 64% (i.e., 563 kt Nd) of all the mined Nd globally were not recycled, indicating a largely untapped potential of recycling in securing Nd supply and an urgency to overcome the present technological and non-technical challenges. The global Nd cycle in the past three decades is characterized by different but complementary roles of different regions along the global Nd value chain: China dominates in the provision of raw materials and semi- and final products, Japan focuses on the manufacturing of magnets and electronics, and the United States and European Union show advantages in the vehicle industry. Anticipating increasing demand of Nd in emerging energy and transport technologies in the future, more coordinated efforts among different regions and increased recycling are urgently needed for ensuring both regional and global Nd supply and demand balance and a common green future.
Collapse
Affiliation(s)
- Qiance Liu
- SDU Life Cycle Engineering, Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230 Odense, Denmark
| | - Kun Sun
- SDU Life Cycle Engineering, Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230 Odense, Denmark
| | - Xin Ouyang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101 Beijing, China
| | - Burak Sen
- SAU Center for Research & Development, and Applied Research (SARGEM), Faculty of Engineering, Sakarya University, 54050 Sakarya, Turkey
| | - Litao Liu
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101 Beijing, China
| | - Tao Dai
- Research Center for Strategy of Global Mineral Resources, Chinese Academy of Geological Sciences and China Geological Survey, 100037 Beijing, China
| | - Gang Liu
- SDU Life Cycle Engineering, Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230 Odense, Denmark
| |
Collapse
|
18
|
Liu M, Shen A, Zheng Y, Chen X, Wang L, Li T, Ouyang X, Yu X, Sun H, Wu X. Long non-coding RNA lncHUPC1 induced by FOXA1 promotes tumor progression by inhibiting apoptosis via miR-133b/SDCCAG3 in prostate cancer. Am J Cancer Res 2022; 12:2465-2491. [PMID: 35812058 PMCID: PMC9251679] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) were confirmed to be involved in regulating various malignant behaviors of tumor cells in prostate cancer (PCa). Using The Cancer Genome Atlas (TCGA) prostate adenocarcinoma datasets, several endogenous competing RNA (ceRNA) networks of lncRNA/miRNA/mRNA associated with the progression-free survival (PFS) and Gleason score (GS) were identified using bioinformatics analysis. lncRNA AC004447.2 (lncHUPC1, ENSG00000269131)/miR-133b/serologically defined colon cancer antigen-3 (SDCCAG3) was a newly identified ceRNA network that affected cell growth and apoptosis in PCa. Using q-PCR, lncHUPC1 and SDCCAG3 were found to be up-regulated in PCa cells, while miR-133b was down-regulated. The same results were found in tissue samples from 70 PCa cases. It was confirmed that the knockdown of lncHUPC1 increased the expression of miR-133b and decreased that of SDCCAG3, which further increased apoptosis and inhibited cell growth, while the miR-133b inhibitor partially reversed these effects. After transfection with miR-133b mimic after lncHUPC1-knockdown, the expression of miR-133b increased while that of SDCCAG3 reduced, and the apoptosis of the cells was more obvious and the growth of the cells was slower. Therefore, lncHUPC1 was confirmed to regulate SDCCAG3 by binding to miR-133b. Additionally, we found that the transcription factor Forkhead Box A1 (FOXA1) directly bound to the promoter of lncHUPC1 to activate it. In conclusion, the ceRNA network of lncHUPC1/miR-133b/SDCCAG3 affected the growth and apoptosis of PCa cells, and FOXA1 may be involved in the process as a transcription factor of lncHUPC1.
Collapse
Affiliation(s)
- Miao Liu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical UniversityChongqing, China
- Gastrointestinal Cancer Center, Chongqing University Cancer HospitalChongqing, China
| | - Ai Shen
- Hepatobiliary and Pancreatic Tumor Center, Affiliated Cancer Hospital of Chongqing UniversityChongqing, China
| | - Yongbo Zheng
- Department of Urology, The First Affiliated Hospital of Chongqing Medical UniversityChongqing, China
| | - Xiong Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical UniversityChongqing, China
| | - Leilei Wang
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical UniversityChongqing, China
| | - Ting Li
- Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Chongqing Medical UniversityChongqing, China
| | - Xin Ouyang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical UniversityChongqing, China
| | - Xian Yu
- Gastrointestinal Cancer Center, Chongqing University Cancer HospitalChongqing, China
| | - Hao Sun
- Gastrointestinal Cancer Center, Chongqing University Cancer HospitalChongqing, China
| | - Xiaohou Wu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical UniversityChongqing, China
| |
Collapse
|
19
|
Ouyang X, Shi G, Wang S, Chen L, Xu J, Xie D. Hsa_circ_0010729 is Involved in Oxygen-Glucose Deprivation/Reoxygenation-Induced Human Microvascular Endothelial Cell Deprivation by Targeting miR-665/ING5. Biochem Genet 2022; 60:2455-2470. [PMID: 35482130 DOI: 10.1007/s10528-022-10225-4] [Citation(s) in RCA: 2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/21/2022] [Indexed: 11/25/2022]
Abstract
Ischemic stroke is a disease with high mortality. Circular RNA_0010729 (hsa_circ_0010729) has been reported to be involved in ischemic heart disease. However, it is not clear whether hsa_circ_0010729 is involved in the regulation of ischemic stroke. In this study, we used oxygen-glucose deprivation/reoxygenation (OGD/R) to stimulate human brain microvascular endothelial cells (HBMECs) model to investigate the potential role of hsa_circ_0010729 in stroke in vitro. The expression levels of hsa_circ_0010729, miR-665, and ING5 in ischemic stroke were detected by quantitative real-time polymerase chain reaction (qRT-PCR). HBMECs proliferation was detected by CCK-8. Cell apoptosis was detected by flow cytometry. The levels of inflammatory cytokines were detected by enzyme-linked immunosorbent assay (ELISA). Western blot was used to detect the related protein expression. Dual-luciferase reporter assay and RNA immunoprecipitation (RIP) were used to examine the target relationship between miR-665 and hsa_circ_0010729 or ING5. Compared with the control group, hsa_circ_0010729 and ING5 were highly expressed in OGD/R-induced HBMECs, while miR-665 was lowly expressed. Hsa_circ_0010729 silencing promoted OGD/R-induced cell proliferation and inhibited apoptosis. However, the effect of hsa_circ_0010729 down-regulation on OGD/R-induced cell was partially restored after co-transfection with miR-665 inhibitor. Overexpression of miR-665 can promote the proliferation and inhibit apoptosis of OGD/R-induced HBMECs by inhibiting ING5 expression. In OGD/R-induced HBMECs, hsa_circ_0010729 silencing decreased ING5 expression by upregulating miR-665. Hsa_circ_0010729 regulated miR-665/ING5 axis in OGD/R-induced HBMECs. Therefore, hsa_circ_0010729 may be a new therapeutic target for ischemic stroke.
Collapse
Affiliation(s)
- Xin Ouyang
- Neurology Department, The Affiliated Hospital of Medical School, Ningbo University, NO. 247 Renmin Road, Jiangbei District, Ningbo, 315000, China.
| | - Guangbin Shi
- Neurology Department, Medical Center Lihuili Hospital Ning Bo, Ningbo, 315000, China
| | - Shaomin Wang
- Department of Urology and Oncology, Ningbo Yinzhou NO.2 Hospital, Ningbo, 315000, China
| | - Li Chen
- Neurology Department, The Affiliated Hospital of Medical School, Ningbo University, NO. 247 Renmin Road, Jiangbei District, Ningbo, 315000, China
| | - Jinyan Xu
- Neurology Department, The Affiliated Hospital of Medical School, Ningbo University, NO. 247 Renmin Road, Jiangbei District, Ningbo, 315000, China
| | - Donglin Xie
- Neurology Department, The Affiliated Hospital of Medical School, Ningbo University, NO. 247 Renmin Road, Jiangbei District, Ningbo, 315000, China
| |
Collapse
|
20
|
Zhang H, Xu J, Wu Q, Fang H, Shao X, Ouyang X, He Z, Deng Y, Chen C. Gut Microbiota Mediates the Susceptibility of Mice to Sepsis-Associated Encephalopathy by Butyric Acid. J Inflamm Res 2022; 15:2103-2119. [PMID: 35386224 PMCID: PMC8977350 DOI: 10.2147/jir.s350566] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/04/2022] [Indexed: 12/11/2022] Open
Abstract
Purpose Neuroinflammation plays an important part in the pathophysiology of sepsis-associated encephalopathy (SAE). Gut microbiota and gut brain axis are considered as important mediators in the development of neurological diseases. The aim of this study was to investigate the role of intestinal microbiota in sepsis-related brain injury and to explore the underlying mechanisms. Methods Mouse model of SAE was established using cecal ligation and puncture (CLP). Based on the mouse mortality and the associated time of death, light SAE (LSAE) and severe SAE (SSAE) were classified. Fecal microbiota transplantation (FMT) was performed to verify the role of intestinal microbiota. Feces of mice in the two groups which collected before operation were sequenced for 16S and targeted short chain fatty acids. Results Intestinal microbiota from SSAE and LSAE mice displayed diverse functions. Interestingly, LSAE mice produced more butyric acid compared with SSAE mice. In the in vivo experiments, sodium butyrate (NaB) reduced the high oxidative stress levels in mice hippocampus and conferred a marked survival superiority to sepsis mice. In addition, NaB prevented the increase in intracellular reactive oxygen species (ROS) generation and inducible nitric-oxide synthase expression in LPS-stimulated primary microglia. The GPR109A/Nrf2/HO-1 signaling pathway was found to be involved in the activation of antioxidant response of primary microglia induced by sodium butyrate. Conclusion Our findings indicate a crucial role of gut microbiota in the susceptibility to SAE. Butyrate, a metabolite of intestinal microbiota, may have a neuroprotective effect in the process of sepsis by GPR109A/Nrf2/HO-1 pathway.
Collapse
Affiliation(s)
- Huidan Zhang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- School of Medicine, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Jing Xu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, People’s Republic of China
| | - Qingrui Wu
- School of Medicine, South China University of Technology, Guangzhou, 510006, People’s Republic of China
| | - Heng Fang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, People’s Republic of China
| | - Xin Shao
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Zhimei He
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
| | - Yiyu Deng
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- School of Medicine, South China University of Technology, Guangzhou, 510006, People’s Republic of China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, People’s Republic of China
- Correspondence: Yiyu Deng; Chunbo Chen, Tel +86-20-83827812 ext. 61526, Fax +86-20-83827712, Email ;
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, People’s Republic of China
- School of Medicine, South China University of Technology, Guangzhou, 510006, People’s Republic of China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 510515, Guangdong, People’s Republic of China
| |
Collapse
|
21
|
Dai JQ, Pang Y, Chen ZQ, Wang SJ, Peng B, Xu H, Yu FH, Zhu L, Ouyang X, Xiang CC, Lyu P, He Y, Yang DB, Huang QT, Yang S, Yu WX, Jiang X, Kang HY. [Epidemiological investigation of tinnitus in Sichuan and Chongqing]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:1164-1173. [PMID: 34749455 DOI: 10.3760/cma.j.cn115330-20201019-00816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objectives: To investigate the prevalence and associated risk factors of tinnitus in Sichuan and Chongqing. Methods: We designed a tinnitus epidemiological questionnaire. The multi-stage stratified cluster random sampling methods was applied to obtain study subjects in six areas (Nanchong, Jiangjin, Fengdu, Yunyang, Suining and Ya'an), which were selected for epidemiological investigation. Home visit completion of epidemiological questionnaires was conducted. The trained investigators guided the respondents to fill in the tinnitus epidemiological questionnaires, and the epidemiological status of six areas on prevalence and risk factor was investigated. SPSS 22.0 software was used for statistical analysis. Results: Sampling population were 10 289, in which 9 273 were valid questionnaires. There were 4 281 males and 4 992 females, with an average age of 47.3 years, among which 34.83% (3 230/9 273) had tinnitus. 3.99% (370/9 273) were diagnosed with bothersome tinnitus. In a multivariable logistic regression mod, the following factors were associated with onsetting of tinnitus: sleep disorder [Odds Ratio(OR)=3.74] and noise exposure(OR=1.99). The risk of disease was lowest in the age of 30-40 years old, while the risk of disease was higher for people under 30 and over 40. In another multivariable logistic regression mode, the following factors were associated with having bothersome tinnitus: older people were more likely to suffer from tinnitus, sleep disorders (OR=4.68) and noise exposure (OR=1.56). Conclusions: The prevalence of tinnitus in Sichuan and Chongqing is about 34.83%, but most of the tinnitus is short-lived and has low loudness, which will not affect the patients. Only a small number of patients with tinnitus (3.99%) persist and affect their health and need treatment. The occurrence and exacerbation of tinnitus may be related to sleep, age, and noise exposure.
Collapse
Affiliation(s)
- J Q Dai
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y Pang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Z Q Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - S J Wang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - B Peng
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, China
| | - H Xu
- School of Public Health and Management, Chongqing Medical University, Chongqing 400016, China
| | - F H Yu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - L Zhu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - X Ouyang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - C C Xiang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - P Lyu
- Department of Otorhinolaryngology, Affiliated Hospital of North Sichuan Medical College, Sichuan 637000, China
| | - Y He
- Department of Otorhinolaryngology, Jiangjin Central Hospital, Chongqing 402260, China
| | - D B Yang
- Department of Otorhinolaryngology, Fengdu People's Hospital, Chongqing 408200, China
| | - Q T Huang
- Department of Otorhinolaryngology, Yunyang People's Hospital, Chongqing 404500, China
| | - S Yang
- Department of Otorhinolaryngology, Suining Central Hospital, Sichuan 629000, China
| | - W X Yu
- Department of Otorhinolaryngology, Suining Central Hospital, Sichuan 629000, China
| | - X Jiang
- Department of Otorhinolaryngology, Ya'an Central Hospital, Sichuan 625000, China
| | - H Y Kang
- Department of Otorhinolaryngology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| |
Collapse
|
22
|
Ouyang X, Wang Z, Luo M, Wang M, Liu X, Chen J, Feng J, Jia J, Wang X. Ketamine ameliorates depressive-like behaviors in mice through increasing glucose uptake regulated by the ERK/GLUT3 signaling pathway. Sci Rep 2021; 11:18181. [PMID: 34518608 PMCID: PMC8437933 DOI: 10.1038/s41598-021-97758-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 03/04/2021] [Accepted: 08/29/2021] [Indexed: 02/06/2023] Open
Abstract
To investigate the effects of ketamine on glucose uptake and glucose transporter (GLUT) expression in depressive-like mice. After HA1800 cells were treated with ketamine, 2-[N-(7-Nitrobenz-2-oxa-1,3-diazol-4-yl)Amino]-2-Deoxyglucose (2-NBDG) was added to the cells to test the effects of ketamine on glucose uptake, production of lactate, and expression levels of GLUT, ERK1/2, AKT, and AMPK. Adult female C57BL/6 mice were subjected to chronic unpredictable mild stress (CUMS), 27 CUMS mice were randomly divided into the depression, ketamine (i.p.10 mg/kg), and FR180204 (ERK1/2 inhibitor, i.p.100 mg/kg) + ketamine group. Three mice randomly selected from each group were injected with 18F-FDG at 6 h after treatment. The brain tissue was collected at 6 h after treatment for p-ERK1/2 and GLUTs. Treatment with ketamine significantly increased glucose uptake, extracellular lactic-acid content, expression levels of GLUT3 and p-ERK in astrocytes and glucose uptake in the prefrontal cortex (P < 0.05), and the immobility time was significantly shortened in depressive-like mice (P < 0.01). An ERK1/2 inhibitor significantly inhibited ketamine-induced increases in the glucose uptake in depressive-like mice (P < 0.05), as well as prolonged the immobility time (P < 0.01). The expression levels of p-ERK1/2 and GLUT3 in depressive-like mice were significantly lower than those in normal control mice (P < 0.01). Ketamine treatment in depressive-like mice significantly increased the expression levels of p-ERK1/2 and GLUT3 in the prefrontal cortex (P < 0.01), whereas an ERK1/2 inhibitor significantly inhibited ketamine-induced increases (P < 0.01).Our present findings demonstrate that ketamine mitigated depressive-like behaviors in female mice by activating the ERK/GLUT3 signal pathway, which further increased glucose uptake in the prefrontal cortex.
Collapse
Affiliation(s)
- Xin Ouyang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
- Department of Anesthesiology, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, People's Republic of China
| | - Zhengjia Wang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - Mei Luo
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - Maozhou Wang
- Heart Center, Beijing Anzhen Hospital, Captial Medical University, Beijing, 100020, People's Republic of China
| | - Xing Liu
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - Jiaxin Chen
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - JianGuo Feng
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - Jing Jia
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China
| | - Xiaobin Wang
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, No. 25, Taiping Road, Luzhou, 646000, Sichuan Province, People's Republic of China.
| |
Collapse
|
23
|
Cheng W, Wang Q, Ouyang X, Xie Y, Gao Y, Yu A. Effect of Economic and Technological Development Zones on Green Innovation. Journal of Global Information Management 2021. [DOI: 10.4018/jgim.315748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Green innovation is an effective way of solving the dilemma of the economy–environment trade-off. As an important innovation policy in China, national economic and technological development zones (NETDZs) play a significant role in promoting innovation, but empirical studies on their impact on innovation, especially green innovation, are scarce. In this study, the authors used highly disaggregated micro-level data such as patent data, industrial firm data, and customs data to examine the impact of NETDZs on green innovation. The results showed that: (1) NETDZs significantly promote green innovation, as measured by both patent quantity and patent quality; (2) the binding environmental indicators in China's five-year plan enhance the promotional effect of NETDZs on green innovation; (3) learning by importing, including through foreign direct investment and importing capital goods, is an important mechanism for the nexus between NETDZs and green innovation; and (4) compared with non-state-owned enterprises (non-SOEs), SOEs are relatively passive in terms of engaging in learning by importing.
Collapse
Affiliation(s)
- Wenyin Cheng
- Institute of Developing Economies, Japan External Trade Organization, Japan
| | - Qingchun Wang
- School of Public Policy and Management, Tsinghua University, China
| | - Xin Ouyang
- Institute of Economics, Tsinghua University, China
| | - Yize Xie
- School of Marxism, Fudan University, China
| | - Yuning Gao
- School of Public Policy and Management, Tsinghua University, China
| | - Anqi Yu
- School of Public Policy and Management, Tsinghua University, China
| |
Collapse
|
24
|
Ouyang X, Qu R, Hu B, Wang Y, Yao F, Lv B, Sun C, Deng Y, Chen C. Is metoclopramide beneficial for the postpyloric placement of nasoenteric tubes? A systematic review and meta-analysis of randomized controlled trials. Nutr Clin Pract 2021; 37:316-327. [PMID: 34155678 PMCID: PMC9292665 DOI: 10.1002/ncp.10725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Metoclopramide is frequently prescribed as an adjuvant for the postpyloric placement of nasoenteric tubes (NETs). However, a recent meta‐analysis showed that metoclopramide was not beneficial in adults. Thus, this study aimed to reevaluate the effect of metoclopramide on the postpyloric placement of NETs. Methods A systematic search of PubMed, Embase, the Cochrane Library, Web of Science, Chinese National Knowledge Infrastructure (CNKI), and Wanfang data was conducted up to August 2020 for randomized controlled trials (RCTs) comparing metoclopramide with placebo or no intervention. Trial sequential analysis (TSA) was used for the primary outcomes (the success rate of the postpyloric placement of NETs). Results Seven eligible RCTs that included 520 participants were identified. The results of the pooled effect sizes showed that metoclopramide significantly facilitated the postpyloric placement of NETs (relative risk [RR], 1.48; 95% CI, 1.11–1.97; P = .007; I2 = 37%). However, the risk‐of‐bias assessment and the TSA results indicated that the qualities of the RCTs and the sample sizes were insufficient to confirm the efficacy of metoclopramide. Further subgroup analysis revealed that successful postpyloric placement was more pronounced in studies in which spiral NETs were employed (RR, 1.85; 95% CI, 1.41–2.43; P < .001; I2 = 0%). Additionally, overall adverse events were minimal. Conclusions The evidence accumulated so far was not strong enough to demonstrate metoclopramide's beneficial effects on the postpyloric placement of NETs. Further high‐quality, large‐sample RCTs are required to elucidate the effects of metoclopramide.
Collapse
Affiliation(s)
- Xin Ouyang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Rong Qu
- Department of Critical Care Medicine, Huizhou Municipal Central Hospital, Huizhou, Guangdong, China
| | - Bei Hu
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yifan Wang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Fen Yao
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Bo Lv
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Cheng Sun
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Yiyu Deng
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| |
Collapse
|
25
|
Ma J, Deng Y, Lao H, Ouyang X, Liang S, Wang Y, Yao F, Deng Y, Chen C. A nomogram incorporating functional and tubular damage biomarkers to predict the risk of acute kidney injury for septic patients. BMC Nephrol 2021; 22:176. [PMID: 33985459 PMCID: PMC8120900 DOI: 10.1186/s12882-021-02388-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/26/2021] [Indexed: 12/11/2022] Open
Abstract
Background Combining tubular damage and functional biomarkers may improve prediction precision of acute kidney injury (AKI). Serum cystatin C (sCysC) represents functional damage of kidney, while urinary N-acetyl-β-D-glucosaminidase (uNAG) is considered as a tubular damage biomarker. So far, there is no nomogram containing this combination to predict AKI in septic cohort. We aimed to compare the performance of AKI prediction models with or without incorporating these two biomarkers and develop an effective nomogram for septic patients in intensive care unit (ICU). Methods This was a prospective study conducted in the mixed medical-surgical ICU of a tertiary care hospital. Adults with sepsis were enrolled. The patients were divided into development and validation cohorts in chronological order of ICU admission. A logistic regression model for AKI prediction was first constructed in the development cohort. The contribution of the biomarkers (sCysC, uNAG) to this model for AKI prediction was assessed with the area under the receiver operator characteristic curve (AUC), continuous net reclassification index (cNRI), and incremental discrimination improvement (IDI). Then nomogram was established based on the model with the best performance. This nomogram was validated in the validation cohort in terms of discrimination and calibration. The decision curve analysis (DCA) was performed to evaluate the nomogram’s clinical utility. Results Of 358 enrolled patients, 232 were in the development cohort (69 AKI), while 126 in the validation cohort (52 AKI). The first clinical model included the APACHE II score, serum creatinine, and vasopressor used at ICU admission. Adding sCysC and uNAG to this model improved the AUC to 0.831. Furthermore, incorporating them significantly improved risk reclassification over the predictive model alone, with cNRI (0.575) and IDI (0.085). A nomogram was then established based on the new model including sCysC and uNAG. Application of this nomogram in the validation cohort yielded fair discrimination with an AUC of 0.784 and good calibration. The DCA revealed good clinical utility of this nomogram. Conclusions A nomogram that incorporates functional marker (sCysC) and tubular damage marker (uNAG), together with routine clinical factors may be a useful prognostic tool for individualized prediction of AKI in septic patients. Supplementary Information The online version contains supplementary material available at 10.1186/s12882-021-02388-w.
Collapse
Affiliation(s)
- Jianchao Ma
- Department of Nephrology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, Guangzhou, Guangdong, PR China
| | - Yujun Deng
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, Guangzhou, Guangdong Province, PR China
| | - Haiyan Lao
- Department of Pharmacy, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, Guangdong, PR China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, PR China
| | - Silin Liang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, PR China
| | - Yifan Wang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, PR China
| | - Fen Yao
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, PR China
| | - Yiyu Deng
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, Guangzhou, Guangdong Province, PR China.
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, 510080, Guangzhou, PR China. .,The Second School of Clinical Medicine, Southern Medical University, 510280, Guangzhou, Guangdong, PR China.
| |
Collapse
|
26
|
Ouyang X, Chen RX, Kang MF, Xiao AJ, Chen MR. [Effect of moxibustion on learning and memory in neonatal hypoxic-ischemia encephalopathy mice]. Zhen Ci Yan Jiu 2021; 46:226-230. [PMID: 33798296 DOI: 10.13702/j.1000-0607.200336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To observe the effect of moxibustion on the expression of phosphorylated calcium/calmodulin-dependent protein kinase Ⅱα(pCaMKⅡα) and neuronal nuclei (NeuN) and the ability of learning and memory in the neonatal mice model of hypoxic-ischemia encephalopathy(HIE), so as to explore its mechanism underlying improvement of learning and memory. METHODS ICR mice (aged 7 days) were randomly divided into sham operation, model and moxibustion groups. HIE model was induced by ligation of the right common carotid artery combined with hypoxia in a closed transparent chamber. Mice in the moxibustion group were treated with gentle moxibustion at "Dazhui"(GV14) for 35 min,once daily for 3 consecutive days. The pathological changes of brain tissues were observed with the naked eyes and under microscope after H.E. staining, respectively. The expressions of pCaMKⅡα and NeuN in the ischemic penumbra were examined by immunofluorescent staining, and the learning and memory ablility was tested with Morris maze. RESULTS No infarcts were found in the brain tissue of the mice in the sham operation group. Compared with the sham operation group, mice in the model group had infarcts and the expression of pCaMKⅡα and NeuN in the ischemic penumbra was significantly reduced (P<0.01), and the latency to find a platform was significantly prolonged in Morris maze test (P<0.01). After moxibustion, in comparison with the model group showed that, small areas of infarction were seen in the right hemisphere of the moxibustion group, and the expressions of pCaMKⅡα, NeuN increased significantly (P<0.01), and the latency to find a platform was significantly shortened (P<0.01). CONCLUSION Moxibustion can improve the ability of learning and memory in the neonatal mice with HIE, which might be related to alleviating brain injury and increasing the expression of pCaMKⅡα in neurons of ischemic brain tissues.
Collapse
Affiliation(s)
- Xin Ouyang
- Graduate School, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ri-Xin Chen
- College of Acupuncture-moxibustion and Tuina, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ming-Fei Kang
- College of Acupuncture-moxibustion and Tuina, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ai-Jiao Xiao
- College of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ming-Ren Chen
- College of Acupuncture-moxibustion and Tuina, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| |
Collapse
|
27
|
Wei R, Chen X, Hu L, He Z, Ouyang X, Liang S, Dai S, Sha W, Chen C. Dysbiosis of intestinal microbiota in critically ill patients and risk of in-hospital mortality. Am J Transl Res 2021; 13:1548-1557. [PMID: 33841678 PMCID: PMC8014420] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/08/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Despite the essential functions of the intestinal microbiota in human physiology, little research was reported on gut microbiota alterations in intensive care patients. This investigation examined the dysbacteriosis of intestinal flora in critically ill patients and evaluated the prognostic performance of this dysbiosis to predict in-hospital mortality. METHODS A prospective cohort of patients were consecutively recruited in the Intensive Care Units (ICUs) in Guangdong Provincial People's Hospital from March 2017 through October 2017. Acute Physiology and Chronic Health Evaluation (APACHE) II score and Sequential Organ Failure Assessment (SOFA) score were assessed, and fecal samples were taken for examination within 24 hours of ICU admission. The taxonomic composition of the intestinal microbiome was determined using 16S rDNA gene sequencing. Patients were divided into survival and death groups based on hospital outcomes. The two groups were statistically compared using the Wilcoxon test and Metastats analysis. The genera of bacteria showing significantly different abundance between groups were assessed as predictors of in-hospital death. The prognostic value of bacterial abundance alone and in combination with APACHE II or SOFA score was evaluated using the area under the receiver operating characteristic curve (AUROC). RESULTS Among the 61 patients examined, 12 patients (19.7%) died during their hospital stay. Bifidobacterium abundance was higher in the survival group than the death group (P = 0.031). The AUROC of Bifidobacterium abundance in identifying in-hospital death at a cut-off probability of 0.0041 was 0.718 (95% confidence interval [CI], 0.588-0.826). The panel of Bifidobacterium abundance plus SOFA (AUROC, 0.882; 95% CI, 0.774-0.950) outperformed SOFA (AUROC, 0.649; 95% CI, 0.516-0.767; P = 0.012) and Bifidobacterium abundance alone (P = 0.007). The panel of Bifidobacterium abundance plus APACHE II (AUROC, 0.876; 95% CI, 0.766-0.946) outperformed APACHE II (AUROC, 0.724; 95% CI, 0.595-0.831; P = 0.035) and Bifidobacterium abundance alone (P = 0.012). CONCLUSIONS Dysbiosis of intestinal microbiota with variable degrees of reduction in Bifidobacterium abundance exhibited promising performance in the predicting of in-hospital mortality and provides incremental prognostic value to existing scoring systems in the adult intensive care unit (ICU) setting.
Collapse
Affiliation(s)
- Ru Wei
- Department of Child Health Care, Guangzhou Women and Children’s Medical CenterNo. 9 Jinsui Road, Guangzhou 510623, Guangdong Province, China
| | - Xu Chen
- The Second School of Clinical Medicine, Southern Medical UniversityGuangzhou 510515, Guangdong, China
| | - Linhui Hu
- Department of Critical Care Medicine, Maoming People’s Hospital101 Weimin Road, Maoming 525000, Guangdong, China
| | - Zhimei He
- Guangdong Provincial People’s Hospital, School of Medicine, South China University of TechnologyGuangzhou 510080, Guangdong, China
| | - Xin Ouyang
- Guangdong Provincial People’s Hospital, School of Medicine, South China University of TechnologyGuangzhou 510080, Guangdong, China
| | - Silin Liang
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Shixue Dai
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, South China University of Technology106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Weihong Sha
- Department of Gastroenterology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, South China University of Technology106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
| | - Chunbo Chen
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong, China
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong, China
| |
Collapse
|
28
|
Rikhtegaran Tehrani Z, Saadat S, Saleh E, Ouyang X, Constantine N, DeVico AL, Harris AD, Lewis GK, Kottilil S, Sajadi MM. Performance of nucleocapsid and spike-based SARS-CoV-2 serologic assays. PLoS One 2020; 15:e0237828. [PMID: 33137138 PMCID: PMC7605638 DOI: 10.1371/journal.pone.0237828] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [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: 08/06/2020] [Accepted: 10/15/2020] [Indexed: 01/14/2023] Open
Abstract
There is an urgent need for an accurate antibody test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We have developed 3 ELISA methods, trimer spike IgA, trimer spike IgG, and nucleocapsid IgG, for detecting anti-SARS-CoV-2 antibodies. We evaluated their performance along with four commercial ELISAs, EDI™ Novel Coronavirus COVID-19 ELISA IgG and IgM, Euroimmun Anti-SARS-CoV-2 ELISA IgG and IgA, and one lateral flow assay, DPP® COVID-19 IgM/IgG System (Chembio). Both sensitivity and specificity were evaluated and the probable causes of false-positive reactions were determined. The assays were evaluated using 300 pre-epidemic samples and 100 PCR-confirmed COVID-19 samples. The sensitivities and specificities of the assays were as follows: 90%/100% (in-house trimer spike IgA), 90%/99.3% (in-house trimer spike IgG), 89%/98.3% (in-house nucleocapsid IgG), 73.7%/100% (EDI nucleocapsid IgM), 84.5%/95.1% (EDI nucleocapsid IgG), 95%/93.7% (Euroimmun S1 IgA), 82.8%/99.7% (Euroimmun S1 IgG), 82.0%/91.7% (Chembio nucleocapsid IgM), 92%/93.3% (Chembio nucleocapsid IgG). The presumed causes of false positive results from pre-epidemic samples in commercial and in-house assays were mixed. In some cases, assays lacked reproducibility. In other cases, reactivity was abrogated by competitive inhibition (spiking the sample with the same antigen that was used for coating ELISAs prior to performing the assay), suggesting positive reaction could be attributed to the presence of antibodies against these antigens. In other cases, reactivity was consistently detected but not abrogated by the spiking, suggesting positive reaction was not attributed to the presence of antibodies against these antigens. Overall, there was wide variability in assay performance using our samples, with in-house tests exhibiting the highest combined sensitivity and specificity. The causes of "false positivity" in pre-epidemic samples may be due to plasma antibodies apparently reacting with the corresponding antigen, or spurious reactivity may be directed against non-specific components in the assay system. Identification of these targets will be essential to improving assay performance.
Collapse
Affiliation(s)
- Zahra Rikhtegaran Tehrani
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland, United States of America
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Saman Saadat
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland, United States of America
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Ebtehal Saleh
- Division of Epidemiology & Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Xin Ouyang
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland, United States of America
| | - Niel Constantine
- Division of Epidemiology & Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Anthony L. DeVico
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Anthony D. Harris
- Department of Epidemiology and Public Health, University of Maryland School of Medicine Baltimore, Maryland, United States of America
| | - George K. Lewis
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
| | - Shyam Kottilil
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland, United States of America
| | - Mohammad M. Sajadi
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland, United States of America
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland, United States of America
- Department of Medicine, Baltimore VA Medical Center, Baltimore, Maryland, United States of America
| |
Collapse
|
29
|
Liao Y, Ouyang X, Lu M, Peng J, Huang X. Approach based on multiple monolithic fiber solid-phase microextraction coupled to liquid chromatography-tandem mass spectrometry for sensitive determination of perfluoroalkyl acids in fish and seafood. Microchem J 2020. [DOI: 10.1016/j.microc.2020.105189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
30
|
Feng Z, Li J, Yao S, Yu Q, Zhou W, Mao X, Li H, Kang W, Ouyang X, Mei J, Zeng Q, Liu J, Ma X, Rong P, Wang W. Clinical Factors Associated with Progression and Prolonged Viral Shedding in COVID-19 Patients: A Multicenter Study. Aging Dis 2020; 11:1069-1081. [PMID: 33014523 PMCID: PMC7505267 DOI: 10.14336/ad.2020.0630] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 05/27/2020] [Accepted: 06/30/2020] [Indexed: 01/08/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) is a global pandemic associated with a high mortality. Our study aimed to determine the clinical risk factors associated with disease progression and prolonged viral shedding in patients with COVID-19. Consecutive 564 hospitalized patients with confirmed COVID-19 between January 17, 2020 and February 28, 2020 were included in this multicenter, retrospective study. The effects of clinical factors on disease progression and prolonged viral shedding were analyzed using logistic regression and Cox regression analyses. 69 patients (12.2%) developed severe or critical pneumonia, with a higher incidence in the elderly and in individuals with underlying comorbidities, fever, dyspnea, and laboratory and imaging abnormalities at admission. Multivariate logistic regression analysis indicated that older age (odds ratio [OR], 1.04; 95% confidence interval [CI], 1.02-1.06), hypertension without receiving angiotensinogen converting enzyme inhibitors or angiotensin receptor blockers (ACEI/ARB) therapy (OR, 2.29; 95% CI, 1.14-4.59), and chronic obstructive pulmonary disease (OR, 7.55; 95% CI, 2.44-23.39) were independent risk factors for progression to severe or critical pneumonia. Hypertensive patients without receiving ACEI/ARB therapy showed higher lactate dehydrogenase levels and computed tomography (CT) lung scores at about 3 days after admission than those on ACEI/ARB therapy. Multivariate Cox regression analysis revealed that male gender (hazard ratio [HR], 1.22; 95% CI, 1.02-1.46), receiving lopinavir/ritonavir treatment within 7 days from illness onset (HR, 0.75; 95% CI, 0.63-0.90), and receiving systemic glucocorticoid therapy (HR, 1.79; 95% CI, 1.46-2.21) were independent factors associated with prolonged viral shedding. Our findings presented several potential clinical factors associated with developing severe or critical pneumonia and prolonged viral shedding, which may provide a rationale for clinicians in medical resource allocation and early intervention.
Collapse
Affiliation(s)
- Zhichao Feng
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China.,2Molecular Imaging Research Center, Central South University, Hunan, China
| | - Jennifer Li
- 3Westmead Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Shanhu Yao
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China.,2Molecular Imaging Research Center, Central South University, Hunan, China
| | - Qizhi Yu
- 4Department of Radiology, First Hospital of Changsha, Hunan, China
| | - Wenming Zhou
- 5Department of Medical Imaging, First Hospital of Yueyang, Hunan, China
| | - Xiaowen Mao
- 6Department of Medical Imaging, Central Hospital of Shaoyang, Hunan, China
| | - Huiling Li
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China
| | - Wendi Kang
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China
| | - Xin Ouyang
- 7Department of Radiology, Central Hospital of Xiangtan, Hunan, China
| | - Ji Mei
- 8Department of Radiology, Second Hospital of Changde, Hunan, China
| | - Qiuhua Zeng
- 9Department of Radiology, Central Hospital of Loudi, Hunan, China
| | - Jincai Liu
- 10Department of Radiology, First Affiliated Hospital of University of South China, Hunan, China
| | - Xiaoqian Ma
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China.,2Molecular Imaging Research Center, Central South University, Hunan, China
| | - Pengfei Rong
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China.,2Molecular Imaging Research Center, Central South University, Hunan, China
| | - Wei Wang
- 1Department of Radiology, Third Xiangya Hospital, Central South University, Hunan, China.,2Molecular Imaging Research Center, Central South University, Hunan, China
| |
Collapse
|
31
|
Tehrani ZR, Saadat S, Saleh E, Ouyang X, Constantine N, DeVico AL, Harris AD, Lewis GK, Kottilil S, Sajadi MM. Specificity and Performance of Nucleocapsid and Spike-based SARS-CoV-2 Serologic Assays. medRxiv 2020:2020.08.05.20168476. [PMID: 32793933 PMCID: PMC7418763 DOI: 10.1101/2020.08.05.20168476] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is an urgent need for an accurate antibody test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In this paper, we have developed 3 ELISA methods, trimer spike IgA, trimer spike IgG, and nucleocapsid IgG, for detecting anti-SARS-CoV-2 antibodies. We evaluated their performance in comparison with four commercial ELISAs, EDI™ Novel Coronavirus COVID-19 ELISA IgG and IgM, Euroimmun Anti-SARS-CoV-2 ELISA IgG and IgA, and one lateral flow assay, DPP® COVID-19 IgM/IgG System (Chembio). Both sensitivity and specificity were evaluated and the causes of false-positive reactions were determined. The assays were compared using 300 pre-epidemic samples and 100 PCR-confirmed COVID-19 samples. The sensitivities and specificities of the assays were as follows: 90%/100% (in-house trimer spike IgA), 90%/99.3% (in-house trimer spike IgG), 89%/98.3% (in-house nucleocapsid IgG), 73.7%/100% (EDI nucleocapsid IgM), 84.5%/95.1% (EDI nucleocapsid IgG), 95%/93.7% (Euroimmun S1 IgA), 82.8%/99.7% (Euroimmun S1 IgG), 82.0%/91.7% (Chembio nucleocapsid IgM), 92%/93.3% (Chembio nucleocapsid IgG). The presumed causes of positive signals from pre-epidemic samples in commercial and in-house assays were mixed. In some cases, positivity varied with assay repetition. In other cases, reactivity was abrogated by competitive inhibition (spiking the sample with analyte prior to performing the assay). In other cases, reactivity was consistently detected but not abrogated by analyte spiking. Overall, there was wide variability in assay performance using our samples, with in-house tests exhibiting the highest combined sensitivity and specificity. The causes of "false positivity" in pre-epidemic samples may be due to plasma antibodies apparently reacting with the analyte, or spurious reactivity may be directed against non-specific components in the assay system. Identification of these targets will be essential to improving assay performance.
Collapse
Affiliation(s)
- Zahra Rikhtegaran Tehrani
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland 21201, USA
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Saman Saadat
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland 21201, USA
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Ebtehal Saleh
- Division of Epidemiology & Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Xin Ouyang
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland 21201, USA
| | - Niel Constantine
- Division of Epidemiology & Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Anthony L. DeVico
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Anthony D Harris
- Department of Epidemiology and Public Health, University of Maryland School of Medicine Baltimore, Maryland 21201, USA, Department of Medicine, Baltimore VA Medical Center, Baltimore, Maryland 21201, USA
| | - George K. Lewis
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Shyam Kottilil
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland 21201, USA
| | - Mohammad M. Sajadi
- Division of Clinical Care and Research, Institute of Human Virology, University of Maryland, Baltimore, Maryland 21201, USA
- Division of Vaccine Research, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
- Department of Medicine, Baltimore VA Medical Center, Baltimore, Maryland 21201, USA
| |
Collapse
|
32
|
Huang Y, Lu M, Chen L, Bai M, Ouyang X, Huang X. Development of solid-phase microextraction with multiple interactions-based monolithic fibers for the sensitive determination of perfluoroalkyl phosphonic acids in water and vegetable samples. Talanta 2020; 206:120198. [DOI: 10.1016/j.talanta.2019.120198] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 07/27/2019] [Accepted: 07/30/2019] [Indexed: 11/29/2022]
|
33
|
Gu Q, Ouyang X, Xie A, Tan X, Liu J, Huang F, Liu P. A retrospective study of the initial chest CT imaging findings in 50 COVID-19 patients stratified by gender and age. J Xray Sci Technol 2020; 28:875-884. [PMID: 32804112 PMCID: PMC7592672 DOI: 10.3233/xst-200709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/24/2020] [Accepted: 07/14/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE To retrospectively analyze and stratify the initial clinical features and chest CT imaging findings of patients with COVID-19 by gender and age. METHODS Data of 50 COVID-19 patients were collected in two hospitals. The clinical manifestations, laboratory examination and chest CT imaging features were analyzed, and a stratification analysis was performed according to gender and age [younger group: <50 years old, elderly group ≥50 years old]. RESULTS Most patients had a history of epidemic exposure within 2 weeks (96%). The main clinical complaints are fever (54%) and cough (46%). In chest CT images, ground-glass opacity (GGO) is the most common feature (37/38, 97%) in abnormal CT findings, with the remaining 12 patients (12/50, 24%) presenting normal CT images. Other concomitant abnormalities include dilatation of vessels in lesion (76%), interlobular thickening (47%), adjacent pleural thickening (37%), focal consolidation (26%), nodules (16%) and honeycomb pattern (13%). The lesions were distributed in the periphery (50%) or mixed (50%). Subgroup analysis showed that there was no difference in the gender distribution of all the clinical and imaging features. Laboratory findings, interlobular thickening, honeycomb pattern and nodules demonstrated remarkable difference between younger group and elderly group. The average CT score for pulmonary involvement degree was 5.0±4.7. Correlation analysis revealed that CT score was significantly correlated with age, body temperature and days from illness onset (p < 0.05). CONCLUSIONS COVID-19 has various clinical and imaging appearances. However, it has certain characteristics that can be stratified. CT plays an important role in disease diagnosis and early intervention.
Collapse
Affiliation(s)
- Qianbiao Gu
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Xin Ouyang
- Department of Radiology, Xiangtan Central Hospital, Xiangtan, China
| | - An Xie
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Xianzheng Tan
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Jianbin Liu
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Feng Huang
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| | - Peng Liu
- Department of Radiology, Hunan Provincial People’s Hospital, First Affiliated Hospital of Hunan Normal University, Changsha, China
| |
Collapse
|
34
|
Ouyang X, He Z, Hu B, Chen C. [Effect of post-pyloric feeding by spiral nasoenteric tubes on ventilator-associated pneumonia in neurocritical care patients: a retrospective analysis of three clinical randomized controlled trials]. Zhonghua Wei Zhong Bing Ji Jiu Yi Xue 2019; 31:967-971. [PMID: 31537221 DOI: 10.3760/cma.j.issn.2095-4352.2019.08.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the effect of post-pyloric feeding by spiral nasoenteric tubes on ventilator-associated pneumonia (VAP) in neurocritical care patients. METHODS A retrospective study was performed to analyze the clinical data of 175 neurocritical care adult patients with mechanical ventilation (MV) more than 48 hours, who were enrolled in three randomized controlled trials (RCT) conducted by Guangdong Provincial People's Hospital for post-pyloric tube placement between April 2012 to March 2019. The following patient clinical data were collected when patients were enrolled: gender, age, neurologic diagnosis, comorbidities, medication, endotracheal reintubation, bronchoscope treatment, the distal site of nasoenteric tubes, and acute physiology and chronic health evaluation II (APACHE II) score, sequential organ failure assessment (SOFA) score, Glasgow coma scale (GCS) score, and acute gastrointestinal injury (AGI) grade assessed. Patients were divided into VAP group and non-VAP group according to the occurrence of VAP, and the differences of each index between the two groups were compared. Then the influencing factors of P < 0.1 were included in multivariate Logistic regression analysis to identify the potential risk factors affecting the incidence of VAP. Furthermore, patients were divided into gastric feeding group and post-pyloric feeding group according to the distal site of nasoenteric tubes, and subgroup analysis was performed to evaluate the variety of VAP in patients with different tube sites and status. RESULTS (1) Forty-two patients occurred VAP in 175 MV patients, and the incidence of VAP was 24.0%. (2) Univariate analysis showed the P value of post-pyloric feeding, APACHE II score, GCS score and bronchoscope treatment were less than 0.1, and post-pyloric feeding and GCS score in VAP group were significantly lower than those in non-VAP group [post-pyloric feeding: 19.0% (8/42) vs. 36.8% (49/133), GCS: 5 (3, 7) vs. 6 (4, 9), both P < 0.05]. Multivariate Logistic regression analysis indicated that post-pyloric feeding was independent protective factor [odds ratio (OR) = 0.360, 95% confidence internal (95%CI) = 0.151-0.857, P = 0.021] and bronchoscope treatment was the independent risk factor (OR = 2.210, 95%CI = 1.051-4.647, P = 0.036) for VAP. (3) The incidence of VAP was 28.8% (34/118), 0% (0/4), 8.3% (1/12), 26.7% (4/15), 22.2% (2/9) and 5.9% (1/17) respectively when tube tip in stomach, D1, D2, D3, D4 and jejunum confirmed by abdominal radiography. Post-pyloric feeding in each proportion seemed to present lower VAP rate compared with gastric feeding, however, no significant difference was found (all P > 0.05). (4) The incidence of VAP in post-pyloric feeding group was significantly lower than that in gastric feeding group [14.0% (8/57) vs. 28.8% (34/118), OR = 0.403, 95%CI = 0.173-0.941, P = 0.032]. Lower VAP rate appeared on patients with SOFA < 12 (OR = 0.392, 95%CI = 0.154-0.995, P = 0.044) and AGI grade ≥ II (OR = 0.086, 95%CI = 0.011-0.705, P = 0.006) fed by post-pyloric route according to the result of subgroup analysis stratified by age, gender, APACHE II score, SOFA score and AGI grade. CONCLUSIONS Post-pyloric feeding would decrease the incidence of VAP in neurocritical care patients on MV.
Collapse
Affiliation(s)
- Xin Ouyang
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, School of Medicine, South China University of Technology, Guangzhou 510080, Guangdong, China. Corresponding author: Chen Chunbo,
| | | | | | | |
Collapse
|
35
|
Li G, Ke L, Tong Z, Li W, Ouyang X, Chen C. Is it necessary for all patients to use prokinetic agents to place a trans-pyloric tube? Intensive Care Med 2019; 45:751-752. [PMID: 30796498 DOI: 10.1007/s00134-019-05548-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Gang Li
- Surgery Intensive Care Unit (SICU), Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing, Jiangsu, China
| | - Lu Ke
- Surgery Intensive Care Unit (SICU), Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing, Jiangsu, China
| | - Zhihui Tong
- Surgery Intensive Care Unit (SICU), Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing, Jiangsu, China.
| | - Weiqin Li
- Surgery Intensive Care Unit (SICU), Department of General Surgery, Jinling Hospital, Medical School of Nanjing University, No. 305 Zhongshan East Road, Nanjing, Jiangsu, China.
| | - Xin Ouyang
- School of Medicine, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong, China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, 510080, Guangzhou, Guangdong, China
| |
Collapse
|
36
|
Fang M, Liu S, Zhou Y, Deng Y, Yin Q, Hu L, Ouyang X, Hou Y, Chen C. Circular RNA involved in the protective effect of losartan on ischemia and reperfusion induced acute kidney injury in rat model. Am J Transl Res 2019; 11:1129-1144. [PMID: 30899412 PMCID: PMC6413261] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Although losartan has inhibitory effects on acute kidney injury (AKI), the underlying molecular mechanisms have remained largely unclear. The expressional alteration of circular RNAs (circRNAs) was investigated in the present study to understand the therapeutic effects of losartan against AKI. AKI rat models were established by ischemia and reperfusion (I/R) treatment. Urea and creatinine levels were determined and histological features of kidney tissues examined following hematoxylin and eosin staining. Cell apoptosis was assessed by TUNEL. CircRNA profiles were obtained by RNA-Seq followed by Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses. Expression of circRNAs was validated by quantitative RT-PCR. I/R treatment induced an increase in plasma urea and creatinine levels, abnormal kidney tubular structure, and cell apoptosis in Sprague-Dawley (SD) rats, which were effectively inhibited by pre-treatment with losartan. Further RNA-Seq analysis revealed a wide range of differentially expressed circRNAs in I/R rat kidneys, which were reversed by losartan pre-treatment. GO and KEGG analyses revealed that the circRNAs are associated with various biological processes, including the PI3K-Akt signaling pathway. Specifically, circ-Dnmt3a, circ-Akt3, circ-Plekha7, and circ-Me1 were down-regulated in AKI rats and restored by losartan. The current study provides an overview of circRNAs expression profiles based on the inhibitory effects of losartan in ischemic AKI rats.
Collapse
Affiliation(s)
- Miaoxian Fang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
| | - Siyi Liu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
| | - Yanhe Zhou
- Forevergen Biosciences CenterGuangzhou 510080, Guangdong Province, PR China
| | - Yujun Deng
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, PR China
| | - Qi Yin
- Forevergen Biosciences CenterGuangzhou 510080, Guangdong Province, PR China
| | - Linhui Hu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, PR China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, PR China
| | - Yating Hou
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences106 Zhongshan Er Road, Guangzhou 510080, Guangdong Province, PR China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences96 Dongchuan Road, Guangzhou 510080, Guangdong Province, PR China
| |
Collapse
|
37
|
Sun C, Lv B, Zheng W, Hu L, Ouyang X, Hu B, Zhang Y, Wang H, Ye H, Zhang X, Lan H, Chen L, Chen C. The learning curve in blind bedside postpyloric placement of spiral tubes: data from a multicentre, prospective observational study. J Int Med Res 2019; 47:1884-1896. [PMID: 30747017 PMCID: PMC6567746 DOI: 10.1177/0300060519826830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Objective This study sought to quantify the learning curve for the blind bedside postpyloric placement of a spiral tube in critically ill patients. Methods We retrospectively analysed 127 consecutive experiences of three intensivists who performed comparable procedures of blind bedside postpyloric placement of a spiral tube subsequent to failed self-propelled transpyloric migration in a multicentre study. Each intensivist’s cases were divided chronologically into two groups for analysis. The assessment of the learning curve was based on efficiency and safety outcomes. Results All intensivists achieved postpyloric placement for over 80% of their patients. The junior intensivist showed major improvement in both efficiency and safety outcomes, and the learning curve for both outcomes was approximately 20 cases. The junior intensivist showed a significant increase in the success rate of proximal jejunum placement and demonstrated a substantial decrease in the major adverse tube-associated events rate. The time to insertion significantly decreased in each intensivist as case experience accumulated. Conclusions Blind bedside postpyloric placement of a spiral tube involves a significant learning curve, indicating that this technique could be readily acquired by intensivists with no previous experience using an adequate professional training programme.
Collapse
Affiliation(s)
- Cheng Sun
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Bo Lv
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Wei Zheng
- 3 Department of Emergency, Longgang District Central Hospital, Shenzhen, Guangdong Province, China
| | - Linhui Hu
- 4 Department of Critical Care Medicine, The People's Hospital of Gaozhou, Gaozhou, Guangdong Province, China.,5 School of Medicine, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong Province, China
| | - Xin Ouyang
- 2 Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China.,5 School of Medicine, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong Province, China
| | - Bei Hu
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Yanlin Zhang
- 6 Department of Critical Care Medicine, Xinjiang Kashgar Region's First People's Hospital, Kashgar Region, Xinjiang Uygur Autonomous Region, China
| | - Hao Wang
- 6 Department of Critical Care Medicine, Xinjiang Kashgar Region's First People's Hospital, Kashgar Region, Xinjiang Uygur Autonomous Region, China
| | - Heng Ye
- 7 Department of Critical Care Medicine, Guangzhou Nansha Central Hospital, Guangzhou, Guangdong Province, China
| | - Xiunong Zhang
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Huilan Lan
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Lifang Chen
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| | - Chunbo Chen
- 1 Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China.,2 Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong Province, China
| |
Collapse
|
38
|
Zhang D, Gao L, Ye H, Chi R, Wang L, Hu L, Ouyang X, Hou Y, Deng Y, Long Y, Xiong W, Chen C. Impact of thyroid function on cystatin C in detecting acute kidney injury: a prospective, observational study. BMC Nephrol 2019; 20:41. [PMID: 30727972 PMCID: PMC6364411 DOI: 10.1186/s12882-019-1201-9] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 01/03/2019] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Cystatin C (Cys C) used clinically for detecting early acute kidney injury (AKI) was reported to be associated with thyroid function. Therefore, whether the performance of Cys C is affected by thyroid hormones has raised concern in critically ill patients. This study aimed to investigate the impact of thyroid hormones on the diagnostic and predictive accuracy of Cys C for AKI, and hence optimize the clinical application of Cys C. METHODS A prospective observational study was conducted in the general intensive care units (ICUs). Serum creatinine (SCr), Cys C, and thyroid function were documented for all patients at ICU admission. Patients were separated into five quintiles based on free triiodothyronine (FT3) and total triiodothyronine (TT3), and two categories according to the presence of low T3 syndrome or not. The impact of thyroid function on the performance of Cys C in diagnosing and predicting AKI was assessed by area under the receiver operating characteristic curve (AUC). RESULTS The AKI incidence was 30.0% (402/1339); 225 patients had AKI upon entry, and 177 patients developed AKI during the subsequent 7 days. The AUCs for Cys C in detecting total AKI, established AKI, and later-onset AKI was 0.753, 0.797, and 0.669, respectively. The multiple linear regression analysis demonstrated that TT3 and FT3 were independently associated with Cys C. Overall, although Cys C did not yield any significant difference in AUCs for detecting AKI among patients with different thyroid hormones, the optimal cut-off value of Cys C to detect AKI was markedly different between patients with and without low T3 syndrome. CONCLUSIONS The thyroid function had no significant impact on the diagnostic and predictive accuracy of Cys C in detecting AKI in ICU patients. However, the optimal cut-off value of Cys C to detect AKI could be affected by thyroid function.
Collapse
Affiliation(s)
- Danqing Zhang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
- Department of Critical Care, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangdong, 510080 Guangdong Province People’s Republic of China
- Shantou University Medical College, 22 Xinling Road, Shantou, 515063 Guangdong Province People’s Republic of China
| | - Lu Gao
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Heng Ye
- Department of Critical Care Medicine, Guangzhou Nansha Central Hospital, Guangzhou, 511400 Guangdong Province People’s Republic of China
| | - Ruibin Chi
- Department of Critical Care Medicine, Xiaolan Hospital of Southern Medical University, Zhongshan, 528415 Guangdong Province People’s Republic of China
| | - Lin Wang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Linhui Hu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Xin Ouyang
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Yating Hou
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Yujun Deng
- Department of Critical Care, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangdong, 510080 Guangdong Province People’s Republic of China
| | - Yi Long
- Department of Critical Care, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangdong, 510080 Guangdong Province People’s Republic of China
| | - Weiping Xiong
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080 Guangdong Province People’s Republic of China
- Department of Critical Care, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangdong, 510080 Guangdong Province People’s Republic of China
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515 Guangdong Province People’s Republic of China
| |
Collapse
|
39
|
Shuai C, Lei J, Gong Z, Ouyang X. Suitability of a new Bloom filter for numerical vectors with high dimensions. PLoS One 2018; 13:e0209159. [PMID: 30576359 PMCID: PMC6303090 DOI: 10.1371/journal.pone.0209159] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/02/2018] [Indexed: 11/23/2022] Open
Abstract
The notable increase in the size and dimensions of data have presented challenges for data storage and retrieval. The Bloom filter and its generations, due to efficient space overheads and constant query delays, have been broadly applied to querying memberships of a big data set. However, the Bloom filter and most of the variants regard each element as a 1-dimensional string and adopt multiple different string hashes to project the data. The interesting problem is when the inputs are numerical vectors with high dimensions, it remains unknown whether they can be projected into the Bloom filter in their original format. Furthermore, we investigate whether the projection is random and uniform. To address these problems, this paper presents a new uniform Prime-HD-BKDERhash family and a new Bloom filter (P-HDBF) to retrieve the membership of a big data set with the numerical high dimensions. Since the randomness and uniformity of data mapping determines the performance of the Bloom filter, to verify these properties, we first introduce information entropy. Our theoretical and experimental results show that the P-HDBF can randomly and uniformly map the data in their native formats. Moreover, the P-HDBF provides an efficient solution alternative to implement membership search with space-time overheads. This advantage may be suitable for engineering applications that are resource-constrained or identification of the nuances of the graphics and images.
Collapse
Affiliation(s)
- Chunyan Shuai
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, China
| | - Jiayou Lei
- Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, China
| | - Zeweiyi Gong
- Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming, China
| | - Xin Ouyang
- Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China
| |
Collapse
|
40
|
Hu B, Ouyang X, Lei L, Sun C, Chi R, Guo J, Guo W, Zhang Y, Li Y, Huang D, Sun H, Nie Z, Yu J, Zhou Y, Wang H, Zhang J, Chen C. Erythromycin versus metoclopramide for post-pyloric spiral nasoenteric tube placement: a randomized non-inferiority trial. Intensive Care Med 2018; 44:2174-2182. [PMID: 30465070 PMCID: PMC6280835 DOI: 10.1007/s00134-018-5466-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 11/13/2018] [Indexed: 12/29/2022]
Abstract
Purpose To determine whether erythromycin is non-inferior to metoclopramide in facilitating post-pyloric placement of self-propelled spiral nasoenteric tubes (NETs) in critically ill patients. Methods A prospective, multicenter, open-label, parallel, and non-inferiority randomized controlled trial was conducted comparing erythromycin with metoclopramide in facilitating post-pyloric placement of spiral NETs in critically ill patients admitted to intensive care units (ICUs) of eight tertiary hospitals in China. The primary outcome was procedure success defined as post-pyloric placement (spiral NETs reached the first portion of the duodenum or beyond confirmed by abdominal radiography 24 h after tube insertion). Results A total of 5688 patients were admitted to the ICUs. Of these, in 355 patients there was a plan to insert a nasoenteric feeding tube, of whom 332 were randomized, with 167 patients assigned to the erythromycin group and 165 patients assigned to the metoclopramide group. The success rate of post-pyloric placement was 57.5% (96/167) in the erythromycin group, as compared with 50.3% (83/165) in the metoclopramide group (a difference of 7.2%, 95% CI − 3.5% to 17.9%), in the intention-to-treat analysis, not including the prespecified margin of − 10% for non-inferiority. The success rates of post-D1 (reaching the second portion of the duodenum or beyond), post-D2 (reaching the third portion of the duodenum or beyond), post-D3 (reaching the fourth portion of the duodenum or beyond), and proximal jejunum placement and the incidence of any adverse events were not significantly different between the groups. Conclusions Erythromycin is non-inferior to metoclopramide in facilitating post-pyloric placement of spiral NETs in critically ill patients. The success rates of post-D1, post-D2, post-D3, and proximal jejunum placement were not significantly different.
Collapse
Affiliation(s)
- Bei Hu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080, Guangdong, China
| | - Xin Ouyang
- Guangdong General Hospital, School of Medicine, South China University of Technology, 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong, China
| | - Liming Lei
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080, Guangdong, China
| | - Cheng Sun
- Department of Critical Care Medicine, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong, China
| | - Ruibin Chi
- Department of Critical Care Medicine, Xiaolan People's Hospital of Zhongshan, Zhongshan, Guangdong, China
| | - Jian Guo
- Department of Intensive Care Unit, People's Hospital of Baise, Baise, Guangxi, China
| | - Wenlong Guo
- Department of Surgical Intensive Care Unit, The First Affiliated Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
| | - Yanlin Zhang
- Department of Critical Care Medicine, Xinjiang Kashgar First People's Hospital, Kashgar, Xinjiang, China
| | - Yong Li
- Department of Emergency, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Daoyong Huang
- Department of Intensive Care Unit, Yangjiang City People's Hospital, Yangjiang, Guangdong, China
| | - Huafeng Sun
- Department of Intensive Care Unit, Chaozhou People's Hospital, Chaozhou, Guangdong, China
| | - Zhiqiang Nie
- Department of Epidemiology, Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of South China Structural Heart Disease, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, 510080, Guangdong, China
| | - Jieyang Yu
- Department of Intensive Care Unit, People's Hospital of Baise, Baise, Guangxi, China
| | - Yuan Zhou
- Department of Surgical Intensive Care Unit, The First Affiliated Hospital of Hunan Traditional Chinese Medical College, Zhuzhou, Hunan, China
| | - Hao Wang
- Department of Critical Care Medicine, Xinjiang Kashgar First People's Hospital, Kashgar, Xinjiang, China
| | - Jinhe Zhang
- Department of Intensive Care Unit, Chaozhou People's Hospital, Chaozhou, Guangdong, China
| | - Chunbo Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, 96 Dongchuan Road, Guangzhou, 510080, Guangdong, China.
| |
Collapse
|
41
|
Ouyang X. Effect of Simultaneous Steam Explosion and Alkaline Depolymerization on Corncob Lignin and Cellulose Structure. CHEM BIOCHEM ENG Q 2018. [DOI: 10.15255/cabeq.2017.1251] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
42
|
Abstract
NLRP6, a member of the nucleotide-binding domain, leucine-rich repeat-containing (NLR) innate immune receptor family, has been reported to participate in inflammasome formation. Activation of inflammasome triggers a caspase-1-dependent programming cell death called pyroptosis. However, whether NLRP6 induces pyroptosis has not been investigated. In this study, we showed that NLRP6 overexpression activated caspase-1 and gasdermin-D and then induced pyroptosis of human gingival fibroblasts, resulting in release of proinflammatory mediators interleukin (IL)-1β and IL-18. Moreover, NLRP6 was highly expressed in gingival tissue of periodontitis compared with healthy controls. Porphyromonas gingivalis, which is a commensal bacterium and has periodontopathic potential, induced pyroptosis of gingival fibroblasts by activation of NLRP6. Together, we, for the first time, identified that NLRP6 could induce pyroptosis of gingival fibroblasts by activation of caspase-1 and may play a role in periodontitis.
Collapse
Affiliation(s)
- W Liu
- 1 Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - J Liu
- 1 Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - W Wang
- 1 Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Wang
- 2 Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, China.,3 Biobank, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Ouyang
- 1 Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, China
| |
Collapse
|
43
|
Kulesz-Martin M, Zheng C, McClanahan D, Barling A, Ouyang X, McWeeney S. 1103 Functional genomic evaluation of targetable pathways in three metastatic cutaneous squamous cell carcinomas. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
44
|
Xiao AJ, He L, Ouyang X, Liu JM, Chen MR. Comparison of the anti-apoptotic effects of 15- and 35-minute suspended moxibustion after focal cerebral ischemia/reperfusion injury. Neural Regen Res 2018; 13:257-264. [PMID: 29557375 PMCID: PMC5879897 DOI: 10.4103/1673-5374.226396] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Heat-sensitive suspended moxibustion has a neuroprotective effect against focal cerebral ischemia/reperfusion injury, but the underlying mechanisms remain unclear. The duration of heat-sensitive suspended moxibustion (usually from 30 minutes to 1 hour) is longer than traditional suspended moxibustion (usually 15 minutes). However, the effects of 15- and 35-minute suspended moxibustion in rats with cerebral ischemia/reperfusion injury are poorly understood. In this study, we performed 15- or 35-minute suspended moxibustion at acupoint Dazhui (GV14) in an adult rat model of focal cerebral ischemia/reperfusion injury. Infarct volume was evaluated with the 2,3,5-triphenyltetrazolium chloride assay. Histopathological changes and neuronal apoptosis at the injury site were assessed by hematoxylin-eosin staining and terminal deoxynucleotidyl transferase dUTP nick end labeling assay. Caspase-9 and caspase-3 expression at the injury site was detected using immunofluorescent staining. Bax and Bcl-2 expression at the injury site was assessed using western blot assay. In the 35-minute moxibustion group, infarct volume was decreased, neuronal apoptosis was reduced, caspase-9, caspase-3 and Bax expression was lower, and Bcl-2 expression was increased, compared with the 15-minute moxibustion group. Our findings show that 35-minute moxibustion has a greater anti-apoptotic effect than 15-minute moxibustion after focal cerebral ischemia/reperfusion injury.
Collapse
Affiliation(s)
- Ai-Jiao Xiao
- School of Basic Medical Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Lin He
- School of Basic Medical Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Xin Ouyang
- School of Moxibustion, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Jie-Min Liu
- School of Basic Medical Science, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| | - Ming-Ren Chen
- School of Moxibustion, Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi Province, China
| |
Collapse
|
45
|
Wu XT, Kuang MD, Ouyang X, Li Y, Yuan MM, Lu WJ, Wang J, Chen YQ. [Method for recording tension changes of small pulmonary artery and vein using the isolated vessel tension measurement system]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:931-935. [PMID: 29224304 DOI: 10.3760/cma.j.issn.1001-0939.2017.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To establish a standardized method for isolated pulmonary artery and vein rings with different diameter, pressure and length, which could provide a more scientific method for in vitro study of pulmonary vessel diseases. Methods: Male SD rats were anesthetized, and the right ventricular systolic pressure were measured. Small pulmonary artery and vein rings with 200-400 μm in diameter and 2 mm in length were prepared by dissecting pulmonary arteries and veins. The pulmonary vessel rings were mounted in the organ bath by 2 stainless steel wires with diameter of 40 μm. Then the internal circumference of the vessel rings was increased gradually with 100 μm per step. At the same time the vascular tension was recorded by the Myograph System and Acknowledgement data acquisition system, and subsequently the passive length-tension exponential curve was made. The initial tension of the rings was set, equilibrated for another 30 min, and then stimulated with 60 mmol/L KCl 3 times, and the best contractile reactivity was achieved. The contractile reactivity of pulmonary artery rings and endothelial integrity were detected by exposure to 1 μmol/L phenylephrine(PE) and 10 μmol/L acetylcholine(Ach), while the contractile reactivity of pulmonary vein rings was detected by exposure to 1 μmol/L U46619 and 10 μmol/L papaverine. Results: The contraction and relaxation effects of the pulmonary artery rings reached 0.39 mg and 92% when they were stimulated by 1 μmol/L PE and 10 μmol/L Ach. The contraction and relaxation effects of pulmonary vein rings were up to 0.13 mg and 84% when they were exposed to 1 μmol/L U46619 and 10 μmol/L papaverine, respectively. Conclusion: Pulmonary artery and vein rings with appropriate basal tension and optimal vasodilator activity were prepared, and a standardized method of tension experiment for isolated pulmonary artery and vein rings established.
Collapse
Affiliation(s)
- X T Wu
- Guangzhou Institute of Respiratory Diseases, State Key Laboratory of Respiratory Diseases, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Tang Y, Wang B, Sun X, Li H, Ouyang X, Wei J, Dai B, Zhang Y, Li X. Rheumatoid arthritis fibroblast-like synoviocytes co-cultured with PBMC increased peripheral CD4 + CXCR5 + ICOS + T cell numbers. Clin Exp Immunol 2017; 190:384-393. [PMID: 28833034 DOI: 10.1111/cei.13025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/07/2017] [Indexed: 12/12/2022] Open
Abstract
'Circulating' T follicular helper cells (Tfh), characterized by their surface phenotypes CD4+ chemokine receptor 5 (CXCR5)+ inducible co-stimulatory molecule (ICOS)+ , have been identified as the CD4+ T cell subset specialized in supporting the activation, expansion and differentiation of B cells. Fibroblast-like synoviocytes (FLS) are critical in promoting inflammation and cartilage destruction in rheumatoid arthritis (RA), and the interaction between FLS and T cells is considered to facilitate FLS activation and T cell recruitment. However, it remains unknown whether RA-FLS co-cultured with activated peripheral blood mononuclear cells (PBMC) has immunoregulatory effects on peripheral Tfh. In the present study, we co-cultured RA-FLS with or without anti-CD3/CD28-stimulated PBMC. The results showed that RA-FLS co-cultured with stimulated PBMC could increase the numbers of CD4+ CXCR5+ ICOS+ T cells of RA PBMC possibly via the production of interleukin (IL)-6, a critical cytokine involved in the differentiation of Tfh cells. We also observed increased reactive oxygen species (ROS) levels in the co-culture system of RA-FLS and PBMC. The percentage of CD4+ CXCR5+ ICOS+ T cells was decreased when ROS production was inhibited by N-acetyl-L-cysteine (NAC), a specific inhibitor which can decrease ROS production. In addition, we showed that the higher levels of tumour necrosis factor (TNF)-α and IL-1β in the co-culture system and the blocking of TNF receptor 2 (TNF-R2) and IL-1β receptor (IL-1βR) both decreased the numbers of CD4+ CXCR5+ ICOS+ T cells. Our study reveals a novel mechanistic insight into how the interaction of RA-FLS and PBMC participates in the RA pathogenesis, and also provides support for the biologicals application for RA.
Collapse
Affiliation(s)
- Y Tang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - B Wang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - X Sun
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - H Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - X Ouyang
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - J Wei
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| | - B Dai
- Department of Rheumatology and Immunology, Dalian Municipal Central Hospital, Dalian
| | - Y Zhang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Dalian Medical University, Liaoning, China
| | - X Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Liaoning
| |
Collapse
|
47
|
Lu B, Ouyang X. HYPERHOMOCYSTEINEMIA IS ASSOCIATED WITH COGNITIVE IMPAIRMENT IN ELDERLY PATIENTS WITH HYPERTENSION. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- B. Lu
- Jiangsu Province Institute of Geriatrica, Nanjing, China
| | - X. Ouyang
- Jiangsu Province Institute of Geriatrica, Nanjing, China
| |
Collapse
|
48
|
McClanahan D, Barling A, Ouyang X, Searles R, Tyner J, McWeeney S, Kulesz-Martin M. 087 Inhibitor assays to determine effective drugs and their targets in cutaneous squamous cell carcinoma. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
49
|
Ouyang X, Barling A, Tyner J, McWeeney S, Kulesz-Martin M. 704 Co-targeting epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) overcomes EGFR inhibitor resistance in head and neck squamous cell carcinoma patient-derived models. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
50
|
Huang S, Huang Z, Cao P, Zujovic Z, Price JR, Avdeev M, Que M, Suzuki F, Kido T, Ouyang X, Kaji H, Fang M, Liu YG, Gao W, Söhnel T. "114"-Type Nitrides LnAl(Si 4-x Al x )N 7 O δ with Unusual [AlN 6 ] Octahedral Coordination. Angew Chem Int Ed Engl 2017; 56:3886-3891. [PMID: 28244628 DOI: 10.1002/anie.201612488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 11/10/2022]
Abstract
Aluminum-nitrogen six-fold octahedral coordination, [AlN6 ], is unusual and has only been seen in the high-pressure rocksalt-type aluminum nitride or some complex compounds. Herein we report novel nitrides LnAl(Si4-x Alx )N7 Oδ (Ln=La, Sm), the first inorganic compounds with [AlN6 ] coordination prepared via non-high-pressure synthesis. Structure refinements of neutron powder diffraction and single-crystal X-ray diffraction data show that these compounds crystallize in the hexagonal Swedenborgite structure type with P63 mc symmetry where Ln and Al atoms locate in anticuboctahedral and octahedral interstitials, respectively, between the triangular and Kagomé layers of [SiN4 ] tetrahedra. Solid-state NMR data of high-purity La-114 powders confirm the unusual [AlN6 ] coordination. These compounds are the first examples of the "33-114" sub-type in the "114" family. The additional site for over-stoichiometric oxygen in the structure of 114-type compounds was also identified.
Collapse
Affiliation(s)
- Saifang Huang
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, P.R. China.,Department of Chemical & Materials Engineering, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Zhaohui Huang
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, P.R. China
| | - Peng Cao
- Department of Chemical & Materials Engineering, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Zoran Zujovic
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Jason R Price
- Australian Synchrotron, 800 Blackburn Road, Clayton, VIC 3168, Australia
| | - Maxim Avdeev
- Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW, 2234, Australia
| | - Meidan Que
- School of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P.R. China
| | - Furitsu Suzuki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Tsuyoshi Kido
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Xin Ouyang
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, P.R. China.,Department of Chemical & Materials Engineering, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Hironori Kaji
- Institute for Chemical Research, Kyoto University, Uji, Kyoto, 611-0011, Japan
| | - Minghao Fang
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, P.R. China
| | - Yan-Gai Liu
- School of Materials Science and Technology, China University of Geosciences (Beijing), Beijing, 100083, P.R. China
| | - Wei Gao
- Department of Chemical & Materials Engineering, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| |
Collapse
|