101
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Zhu L, She ZG, Cheng X, Qin JJ, Zhang XJ, Cai J, Lei F, Wang H, Xie J, Wang W, Li H, Zhang P, Song X, Chen X, Xiang M, Zhang C, Bai L, Xiang D, Chen MM, Liu Y, Yan Y, Liu M, Mao W, Zou J, Liu L, Chen G, Luo P, Xiao B, Zhang C, Zhang Z, Lu Z, Wang J, Lu H, Xia X, Wang D, Liao X, Peng G, Ye P, Yang J, Yuan Y, Huang X, Guo J, Zhang BH, Li H. Association of Blood Glucose Control and Outcomes in Patients with COVID-19 and Pre-existing Type 2 Diabetes. Cell Metab 2020; 31:1068-1077.e3. [PMID: 32369736 PMCID: PMC7252168 DOI: 10.1016/j.cmet.2020.04.021] [Citation(s) in RCA: 1024] [Impact Index Per Article: 256.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 04/26/2020] [Accepted: 04/28/2020] [Indexed: 02/08/2023]
Abstract
Type 2 diabetes (T2D) is a major comorbidity of COVID-19. However, the impact of blood glucose (BG) control on the degree of required medical interventions and on mortality in patients with COVID-19 and T2D remains uncertain. Thus, we performed a retrospective, multi-centered study of 7,337 cases of COVID-19 in Hubei Province, China, among which 952 had pre-existing T2D. We found that subjects with T2D required more medical interventions and had a significantly higher mortality (7.8% versus 2.7%; adjusted hazard ratio [HR], 1.49) and multiple organ injury than the non-diabetic individuals. Further, we found that well-controlled BG (glycemic variability within 3.9 to 10.0 mmol/L) was associated with markedly lower mortality compared to individuals with poorly controlled BG (upper limit of glycemic variability exceeding 10.0 mmol/L) (adjusted HR, 0.14) during hospitalization. These findings provide clinical evidence correlating improved glycemic control with better outcomes in patients with COVID-19 and pre-existing T2D.
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Affiliation(s)
- Lihua Zhu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Zhi-Gang She
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Xu Cheng
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Juan-Juan Qin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Xiao-Jing Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Jingjing Cai
- Department of Cardiology, The Third Xiangya Hospital, Central South University, Changsha 410000, China
| | - Fang Lei
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Haitao Wang
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Jing Xie
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China
| | - Wenxin Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Haomiao Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Peng Zhang
- Institute of Model Animal, Wuhan University, Wuhan 430072, China; Medical Science Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Xiaohui Song
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Xi Chen
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Mei Xiang
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430072, China
| | - Chaozheng Zhang
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Liangjie Bai
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Da Xiang
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Ming-Ming Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Yanqiong Liu
- Institute of Model Animal, Wuhan University, Wuhan 430072, China
| | - Youqin Yan
- Wuhan Seventh Hospital, Wuhan 430072, China
| | - Mingyu Liu
- The Ninth Hospital of Wuhan City, Wuhan 430072, China
| | - Weiming Mao
- Department of General Surgery, Huanggang Central Hospital, Huanggang 438000, China
| | - Jinjing Zou
- Department of Pulmonary and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan 430072, China
| | - Liming Liu
- Department of General Surgery, Ezhou Central Hospital, Ezhou 436000, China
| | - Guohua Chen
- Department of Neurology, Wuhan First Hospital/Wuhan Hospital of Traditional Chinese and Western Medicine, Wuhan 430072, China
| | - Pengcheng Luo
- Department of Urology, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan 430072, China
| | - Bing Xiao
- Department of Stomatology, Xiantao First People's Hospital, Xiantao 433000, China
| | - Changjiang Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China
| | - Zixiong Zhang
- The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China
| | - Zhigang Lu
- Department of Neurology, The First People's Hospital of Jingmen affiliated to Hubei Minzu University, Jingmen 448000, China
| | - Junhai Wang
- Department of Orthopedics, The First People's Hospital of Jingmen affiliated to Hubei Minzu University, Jingmen 448000 China
| | - Haofeng Lu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Changjiang University, Jingzhou 434000, China
| | - Xigang Xia
- Department of Hepatobiliary Surgery, Jingzhou Central Hospital, Jingzhou 434000, China
| | - Daihong Wang
- Department of Hepatobiliary and Pancreatic Surgery, Xianning Central Hospital, Xianning 437000, China
| | - Xiaofeng Liao
- Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang 441000, China
| | - Gang Peng
- Department of Hepatobiliary and Pancreatic Surgery, Suizhou Central Hospital Affiliated to Hubei Medical College, Suizhou 441300, China
| | - Ping Ye
- Department of Cardiology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430072, China
| | - Jun Yang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University and Yichang Central People's Hospital and Institute of Cardiovascular Diseases, China Three Gorges University, Yichang 443000, China
| | - Yufeng Yuan
- Department of Hepatobiliary and Pancreatic Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Xiaodong Huang
- Department of Gastroenterology, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan 430072, China.
| | - Jiao Guo
- Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine & Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China and Institute of Chinese Medicine, Guangdong Pharmaceutical University, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangzhou 510006, China.
| | - Bing-Hong Zhang
- Department of Neonatology, Renmin Hospital of Wuhan University, Wuhan 430072, China.
| | - Hongliang Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 410013, China; Institute of Model Animal, Wuhan University, Wuhan 430072, China; Medical Science Research Center, Zhongnan Hospital of Wuhan University, Wuhan 430072, China; Basic Medical School, Wuhan University, Wuhan 430072, China.
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102
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Bai L, Fei Q, Lei F, Luo R, Ma Q, Dai M, Zhang H, He N. Comparative analysis of pharmacokinetics of vancomycin hydrochloride in rabbits after ocular, intragastric, and intravenous administration by LC-MS/MS. Xenobiotica 2020; 50:1461-1468. [PMID: 32452710 DOI: 10.1080/00498254.2020.1774681] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The objective of this study was to compare the pharmacokinetics of vancomycin hydrochloride administered into rabbits through different routes and explore the feasibility of peptide drugs entering the systemic circulation through ocular administration. A convenient, accurate, and rapid liquid chromatography-trandem mass spectrometric (LC-MS/MS) method was established and used for the determination of vancomycin hydrochloride in rabbit plasma after intravenous administration (1.5 mg/kg), intragastric, and ocular administration (15 mg/kg). The pharmacokinetic parameters were analyzed using the DAS 2.0 software. We obtained a linear calibration curves vancomycin hydrochloride in plasma of rabbits over a concentration range of 0.05-10.0 μg/mL (R 2 > 0.9995), the interassay accuracy was within 5%, precision of 1.66-3.38%, and recovery of >85%. No matrix effects were observed. The absolute bioavailability of vancomycin hydrochloride after intragastric and ocular administration was 1.0 and 7.3%, with the half-life values of 63.1 and 138.5 min, respectively. Therefore, the LC-MS/MS method established in this experiment was suitable for the determination of vancomycin hydrochloride. Vancomycin hydrochloride was rapidly absorbed into the blood circulation after ocular administration. Ocular administration was linked to higher bioavailability compared with intragastric administration, suggesting that the former will become a route for the delivery of peptide drugs.
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Affiliation(s)
- Luyu Bai
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Qingsong Fei
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Fang Lei
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Rui Luo
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Qun Ma
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Manman Dai
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Huimin Zhang
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China
| | - Ning He
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei, China.,Anhui Academy of Chinese Medical Sciences, Institute of Pharmaceutics, Hefei, China.,Engineering Technology Research Center of Modernized Pharmaceutics, Hefei, China.,Key Laboratory of Chinese Medicinal Formula, Hefei, China
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103
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Zhang P, Zhu L, Cai J, Lei F, Qin JJ, Xie J, Liu YM, Zhao YC, Huang X, Lin L, Xia M, Chen MM, Cheng X, Zhang X, Guo D, Peng Y, Ji YX, Chen J, She ZG, Wang Y, Xu Q, Tan R, Wang H, Lin J, Luo P, Fu S, Cai H, Ye P, Xiao B, Mao W, Liu L, Yan Y, Liu M, Chen M, Zhang XJ, Wang X, Touyz RM, Xia J, Zhang BH, Huang X, Yuan Y, Loomba R, Liu PP, Li H. Association of Inpatient Use of Angiotensin-Converting Enzyme Inhibitors and Angiotensin II Receptor Blockers With Mortality Among Patients With Hypertension Hospitalized With COVID-19. Circ Res 2020; 126:1671-1681. [PMID: 32302265 PMCID: PMC7265882 DOI: 10.1161/circresaha.120.317134] [Citation(s) in RCA: 853] [Impact Index Per Article: 213.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Supplemental Digital Content is available in the text. Use of ACEIs (angiotensin-converting enzyme inhibitors) and ARBs (angiotensin II receptor blockers) is a major concern for clinicians treating coronavirus disease 2019 (COVID-19) in patients with hypertension.
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Affiliation(s)
- Peng Zhang
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Medical Science Research Center (P.Z., Y.-X.J., H.L.), Zhongnan Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.).,Basic Medical School, Wuhan University (P.Z., L. Lin, H.L.)
| | - Lihua Zhu
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Jingjing Cai
- Cardiology, The Third Xiangya Hospital, Central South University, Changsha, China (J. Cai)
| | - Fang Lei
- Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Juan-Juan Qin
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Jing Xie
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University
| | - Ye-Mao Liu
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Yan-Ci Zhao
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Xuewei Huang
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Lijin Lin
- Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.).,Basic Medical School, Wuhan University (P.Z., L. Lin, H.L.)
| | - Meng Xia
- Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Ming-Ming Chen
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Xu Cheng
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Xiao Zhang
- Eye Center (X.Z.), Renmin Hospital of Wuhan University
| | - Deliang Guo
- Hepatobiliary and Pancreatic Surgery (D.G., H.W., Y. Yuan), Zhongnan Hospital of Wuhan University
| | - Yuanyuan Peng
- Cardiology (Y.P.), Zhongnan Hospital of Wuhan University
| | - Yan-Xiao Ji
- Medical Science Research Center (P.Z., Y.-X.J., H.L.), Zhongnan Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Jing Chen
- Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Zhi-Gang She
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Yibin Wang
- Anesthesiology, Cardiovascular Research Laboratories, David Geffen School of Medicine, University of California, Los Angeles (Y.W.)
| | - Qingbo Xu
- Centre for Clinic Pharmacology, The William Harvey Research Institute, Queen Mary University of London, United Kingdom (Q.X.)
| | - Renfu Tan
- Wuhan Kanghuashuhai Technology Company (R.T.), Wuhan
| | - Haitao Wang
- Hepatobiliary and Pancreatic Surgery (D.G., H.W., Y. Yuan), Zhongnan Hospital of Wuhan University
| | - Jun Lin
- Gastroenterology (J.L.), Zhongnan Hospital of Wuhan University
| | - Pengcheng Luo
- Urology (P.L.), Wuhan Third Hospital & Tongren Hospital of Wuhan University
| | - Shouzhi Fu
- Intensive Care Unit (S.F.), Wuhan Third Hospital & Tongren Hospital of Wuhan University
| | | | - Ping Ye
- Cardiology, The Central Hospital of Wuhan (P.Y., M.C.)
| | - Bing Xiao
- Stomatology, Xiantao First People's Hospital (B.X.)
| | - Weiming Mao
- General Surgery, Huanggang Central Hospital, Wuhan, China (W.M.)
| | - Liming Liu
- General Surgery, Ezhou Central Hospital (L. Liu)
| | - Youqin Yan
- Infections Department, Wuhan Seventh Hospital (Y. Yan)
| | | | - Manhua Chen
- Cardiology, The Central Hospital of Wuhan (P.Y., M.C.)
| | - Xiao-Jing Zhang
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.)
| | - Xinghuan Wang
- Center for Evidence-Based and Translational Medicine (X.W.), Zhongnan Hospital of Wuhan University.,Urology (X.W.), Zhongnan Hospital of Wuhan University
| | - Rhian M Touyz
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, United Kingdom (R.M.T.)
| | - Jiahong Xia
- Cardiovascular Surgery, Union Hospital (J.Xia), Tongji Medical College, Huazhong University of Science and Technology
| | | | - Xiaodong Huang
- Gastroenterology (X.H.), Wuhan Third Hospital & Tongren Hospital of Wuhan University
| | - Yufeng Yuan
- Hepatobiliary and Pancreatic Surgery (D.G., H.W., Y. Yuan), Zhongnan Hospital of Wuhan University
| | - Rohit Loomba
- NAFLD Research Center, Division of Gastroenterology and Epidemiology, University of California San Diego, CA (L.R.)
| | - Peter P Liu
- Division of Cardiology, Department of Medicine, University of Ottawa Heart Institute, Ontario, Canada (P.P.L.)
| | - Hongliang Li
- From the Cardiology (P.Z., L.Z., J.-J.Q., J. Xie, Y.-M.L., Y.-C.Z., X. Huang, M.-M.C., X.C., Z.-G.S., X.-J.Z., H.L.), Renmin Hospital of Wuhan University.,Medical Science Research Center (P.Z., Y.-X.J., H.L.), Zhongnan Hospital of Wuhan University.,Institute of Model Animal of Wuhan University (P.Z., L.Z., F.L., J.-J.Q., Y.-M.L., Y.-C.Z., X. Huang, L. Lin, M.X., M.-M.C., X.C., Y.-X.J., J. Chen, Z.-G.S., X.-J.Z., H.L.).,Basic Medical School, Wuhan University (P.Z., L. Lin, H.L.)
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104
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Dai M, Bai L, Zhang H, Ma Q, Luo R, Lei F, Fei Q, He N. A novel flunarizine hydrochloride-loaded organogel for intraocular drug delivery in situ: Design, physicochemical characteristics and inspection. Int J Pharm 2020; 576:119027. [PMID: 31953090 DOI: 10.1016/j.ijpharm.2020.119027] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 12/01/2022]
Abstract
We developed a safe and efficacious drug delivery system for treatment of brain diseases. A novel in-situ gel system was prepared using soybean oil, stearic acid and N-methyl-2-pyrrolidinone (NMP) (10:1:3, v/w/v). This system had low viscosity as a sol in vitro and turned into a solid or semi-solid gel in situ after administration. The poorly water-soluble drug flunarizine hydrochloride (FNZ) was incorporated into this "organogel" system. Organogel-FNZ was characterized by light microscopy, differential scanning calorimetry (DSC) and rheology. Drug release in vitro was investigated. The initial "burst" effect did not occur in organogel-FNZ, which is different from other gels formed in situ. Pharmacokinetic studies were undertaken in rats using gel administration (14 mg kg-1), intravenous administration (5 mg kg-1) and administration using drops (14 mg kg-1). Organogel-FNZ could reduce the clearance rate and prolong the duration of action, in the plasma and brain tissues of rats. The peak serum concentration, area under the curve and absolute bioavailability of the organogel-FNZ group were higher than those of the intraocular- drops group. Organogel-FNZ is a promising drug-delivery system for treatment of brain diseases by intraocular administration.
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Affiliation(s)
- Manman Dai
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Luyu Bai
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Huimin Zhang
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Qun Ma
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Rui Luo
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Fang Lei
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Qingsong Fei
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China
| | - Ning He
- Department of Pharmaceutics, College of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, People's Republic of China; Institute of Pharmaceutics, Anhui Academy of Chinese Medical Sciences, Hefei 230012, People's Republic of China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Province, Hefei 230012, People's Republic of China; Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei 230012, People's Republic of China.
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105
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Zheng Y, Lei F, Liu B. Cancer Diagnosis Disclosure and Quality of Life in Elderly Cancer Patients. Healthcare (Basel) 2019; 7:healthcare7040163. [PMID: 31847309 PMCID: PMC6956195 DOI: 10.3390/healthcare7040163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 12/02/2019] [Accepted: 12/13/2019] [Indexed: 12/12/2022] Open
Abstract
Informed consent and patient autonomy rights require an optimal cancer diagnosis disclosure strategy to be used to update the patients and caregivers with the bad news. However, a cancer diagnosis disclosure may arouse anxiety and distress which increase patients’ and caregivers’ psychological burden. This study aims to explore the influence of cancer diagnosis disclosure on the quality of life in elderly cancer patients and their caregivers, and to introduce an effective way to disclose cancer diagnosis. A total of 120 participants were randomly selected in the study. The Medical Coping Modes Questionnaire was used to select informed person. The SPIKES was used to guide the disclosure procedures. The informed patients’ or caregivers’ quality of life were evaluated by the Generic Quality of Life Inventory-74 or Caregiver Quality of Life Scale before and after the cancer diagnosis disclosure and at the discharge time. After cancer diagnosis disclosure, no significant change was found on the quality of life of the informed person. With multiple psychological interventions implemented, a significant increase was noticed on the quality of life of the informed person. Applying the cancer diagnosis disclosure strategies and psychological intervention were essential to improve cancer patients’ and caregivers’ quality of life.
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Affiliation(s)
- Ying Zheng
- School of Public Health, Fudan University, Shanghai 200032, China; (Y.Z.); (B.L.)
| | - Fang Lei
- School of Nursing, University of California, Los Angeles, CA 90095, USA
- Correspondence: ; Tel.: +1-310-733-0963
| | - Bao Liu
- School of Public Health, Fudan University, Shanghai 200032, China; (Y.Z.); (B.L.)
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106
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Zhang Y, Ren R, Yang L, Lei F, Zhou J, Tan L, Li T, Tang X. Different associations of obesity with subjective and objective daytime sleepiness in obstructive sleep apnea. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1235] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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107
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Wang H, Lu H, Zhao L, Zhang H, Lei F, Wang Y. Asian monsoon rainfall variation during the Pliocene forced by global temperature change. Nat Commun 2019; 10:5272. [PMID: 31754108 PMCID: PMC6872654 DOI: 10.1038/s41467-019-13338-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 12/04/2018] [Accepted: 11/04/2019] [Indexed: 11/15/2022] Open
Abstract
The Asian monsoon variations under global temperature changes during the Pliocene are still debated. Here we use a sedimentary record of phytoliths (plant silica) from the Weihe Basin, central China, to explore the history of C4 grasses and quantitatively reconstruct the Asian monsoon climate since the late Miocene. Our results show that C4 grasses have been a dominant grassland component since ~11.0 Ma. A subsequent marked decrease in warm- and humid-adapted C4 grasses and an increase in cool- and dry-adapted C3 grasses occurred in the Pliocene, ~4.0 Ma; the phytolith-based quantitative reconstruction of mean annual precipitation marked a decrease from 800~1673 mm to 443~900 mm, indicating a reduction in Asian monsoon rainfall in the Pliocene. Our newly obtained records conflict with the hypothesis that the growth of the Tibetan Plateau strengthened the Asian monsoon rainfall. Nevertheless, they emphasize the importance of global temperature as a determinant of Pliocene Asian monsoon variations. Asian summer monsoons and their links to global temperature changes have been the subject of intense debate. Here the authors reconstruct the Asian monsoon climate since the late Miocene, using plant silica records of C4 and C3 grasses in central China, and find that global cooling caused Asian monsoon rainfall to decrease markedly in the late Pliocene.
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Affiliation(s)
- Hanlin Wang
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China
| | - Huayu Lu
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China. .,Jiangsu Provincial Collaborative Innovation Centre of Climate Change, Nanjing, 210023, China.
| | - Lin Zhao
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China
| | - Hongyan Zhang
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China
| | - Fang Lei
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China
| | - Yichao Wang
- School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China
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108
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Chen P, Yang SJ, Yuan XX, Yuan L, Lei F, Wang J, Wu KP, Xie WG. [Self-made finger flexion band and its application in patients with burn scar contracture on the back of hand]. Zhonghua Shao Shang Za Zhi 2019; 35:821-823. [PMID: 31775473 DOI: 10.3760/cma.j.issn.1009-2587.2019.11.011] [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: 06/10/2023]
Abstract
Scar contracture after burn on the back of hand can easily lead to the limitation of flexion function of fingers, which seriously affects daily life activities. Generally, comprehensive rehabilitation treatment is adopted for scar contracture on the back of hand, among which wearing braces is an effective treatment method. However, some braces will limit the normal finger joints or must wait until all the affected fingers heal before they can be worn, and the wearing operation is quite complicated. In order to solve these problems, the author designed and made a finger flexion band, which was used to stretch the patients with limited flexion of finger caused by scar contracture after burn on the back of hand, and achieved good therapeutic effect. According to the measured hand size, the finger flexion band is cut and spliced from the fabric commonly used in daily life. The finger flexion band is designed with finger sleeve, which will not limit the normal finger joints, can interfere with the healed finger in advance, fix the corresponding fingers better, and improve the treatment comfort, especially for children who do not cooperate with the braces wearing. This finger flexion band is simple to make, cheap, convenient to use, and suitable for clinical promotion.
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Affiliation(s)
- P Chen
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - S J Yang
- Department of Rehabilitation, Hospital Affiliated to Wuhan University of Science and Technology, Wuhan 430065, China
| | - X X Yuan
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - L Yuan
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - F Lei
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - J Wang
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - K P Wu
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
| | - W G Xie
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
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109
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Zhang YY, Ren R, Li TM, Tan L, Zhang Y, Zhou JY, Lei F, Yang LH, Tang XD. [Follow-up study on natural course changes of obstructive sleep apnea hypopnea syndrome among young and middle aged patients]. Zhonghua Yi Xue Za Zhi 2019; 99:3323-3327. [PMID: 31715669 DOI: 10.3760/cma.j.issn.0376-2491.2019.42.010] [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: 02/05/2023]
Abstract
Objective: To explore the natural course of obstructive sleep apnea-hypopnea syndrome (OSAHS) and its associated factors in young and middle-aged patients with OSAHS. Methods: A total of 52 young and middle-aged OSAHS patients were recruited in this study from West China Hospital of Sichuan University. All patients were performed twice overnight polysomnography (PSG) examinations. At the baseline, patients underwent the first PSG and clinical evaluation from September 2009 to September 2017 and the patients received the second PSG from January 2017 to January 2019. During the follow-up period, these patients had no treatment. All patients were categorized into two groups including mild-to-moderate [5/h≤ apnea-hypopnea index (AHI)<30/h] group and severe (AHI ≥ 30/h) group according to the baseline AHI value. Differences in the clinical characteristics and PSG variables between baseline and follow-up were compared in two groups separately using t-tests or Mann-Whitney U test. The general linear correlation analysis was used to explore the factors related to the severity of OSAHS including AHI, the mean oxyhemoglobin saturation and the minimal oxyhemoglobin saturation during the follow-up period. Results: This study recruited 28 OSAHS patients in mild-to-moderate group [mean age, (39.7±10.2) y] and 24 patients in severe group [mean age, (41.0±7.1) y]. Compared to the baseline, there was a significant increase in AHI value [(45.0±25.3) vs (33.6±27.3)/h, P<0.001] in all OSAHS patients. Notably, the increase of AHI was more significant in the mild-to-moderate OSAHS group [(32.1±22.2) vs (13.6±8.7)/h, P<0.05] but not in severe OSAHS patients [(60.7±19.5) vs (58.0±21.5)/h, P>0.05]. A person correlation analysis revealed that the AHI value was positively related to the age (r=0.531, P=0.004) in mild-to-moderate OSAHS patients. Conclusion: The severity of OSAHS is increased with the age in young and middle-aged patients with mild-to-moderate OSAHS, but not in those with severe OSAHS.
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Affiliation(s)
- Y Y Zhang
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - R Ren
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - T M Li
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Tan
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Zhang
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Y Zhou
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - F Lei
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L H Yang
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X D Tang
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
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110
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Zhong C, Zhan P, Tian H, Wang P, Lei F. Anti-ulcer activity of the three different extracts of Ferula lehmannii Boiss leaf in rats. Pak J Pharm Sci 2019; 32:2625-2632. [PMID: 31969295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ferula lehmannii Boiss (FLB) is a perennial plant that belongs to the family Apiaceae, which is a traditional remedy used to treat gastric ulcers in Xinjiang. The main purpose of the research is to investigate the possible antiulcer effect of three different extracts, water decoction (WD), fresh liquid (FL), and chloroform extract (CE), using a model of acetic acid-induced gastric ulcer. 56 rats were divided into seven groups (n=8) and treated ranitidine and extracts of FLB. After 12 days of treatment, the ulcer index and biochemical parameters were evaluated. In all tested groups, the results indicated that the chloroform extract and water decoction highly significantly decreased the mucosal damage index as compared to the model group, restoration of glutathione per oxidase (GSH-PX) levels and super oxide dismutase (SOD) activity, and reduction of malondialdehyde (MDA) levels. The ulcer inhibition rate of water decoction group, fresh liquid and chloroform extract group reached 25.30%, 4.96% and 30.87%, respectively. The macroscopic observations were supported by histological findings. 44, 31, 32 compounds were identified through GC-MS analysis of different extracts. In conclusion, FLB exhibits potential anti-ulcer activity attributed to its high content terpenoid, phytosterin and fatty acid, the underlying antiulcer mechanism might be relevant to the reduction in inflammation and oxidative stress.
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Affiliation(s)
- ChaoYi Zhong
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, PR China/Food College of Shihezi University, Shihezi, Xinjiang, PR China
| | - Ping Zhan
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, PR China/Food College of Shihezi University, Shihezi, Xinjiang, PR China
| | - Honglei Tian
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, PR China
| | - Peng Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an, Shaanxi, PR China/Food College of Shihezi University, Shihezi, Xinjiang, PR China
| | - Fang Lei
- Food College of Shihezi University, Shihezi, Xinjiang, PR China
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111
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Lei F, Li TM, Tan L, Ren R, Tang XD, Yang LH. [Associations between objective sleepiness and cognition function before and after CPAP in obstructive sleep apnea patients]. Zhonghua Yi Xue Za Zhi 2019; 99:2182-2186. [PMID: 31434389 DOI: 10.3760/cma.j.issn.0376-2491.2019.28.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To examine the association between objective sleepiness and neurocognitive function before and after continuous positive airway pressure (CPAP) in obstructive sleep apnea (OSA) patients. Methods: A total of 53 patients with overnight polysomnography (PSG) determined moderate-to-severe OSA (apnea hypopnea index (AHI) ≥15 events/h) and with overnight CPAP therapy from West China Hospital, Sichuan University within the period from Feb 2018 to Dec 2018 were enrolled in the study. At the baseline, all patients underwent overnight PSG study, multiple sleep latency test (MSLT), psychomotor vigilance test (PVT), and Epworth sleepiness score (ESS). After CPAP therapy, all patients underwent MSLT and PVT. Paired nonparametric test or t test were used to compare the differences between daytime sleepiness and PVT performance before and after CPAP. Results: Compared with baseline data, AHI [68.8(42.2, 80.0) vs 7.4(3.1, 11.1) events/h, P<0.05] decreased, the percentages of non-rapid eye movement stage 3 sleep time [0(0, 0.5%) vs 4.4%(1.9%, 11.3%), P<0.05] and the percentages of rapid eye movement sleep time [18.6%(13.2%, 22.7%) vs 25.4%(23.85, 30.3%), P<0.05] increased after CPAP therapy. The reaction time (RT) [353.0(317.5, 429.5) vs 333.6(309.7, 381.4) ms, P<0.05], the slowest 10% RT [602.9(473.2, 841.3) vs 505.5(431.6, 618.8) ms, P<0.05] and the fastest 10% RT [260.8(236.6, 300.6) vs 251.4(233.6, 283.2) ms, P<0.05] shortened, and the lapse [6.0(2.5, 16.5) vs 3.0(1.0, 8.5) events, P<0.05] decreased. The mean sleep latency (MSL) [5.8 (3.4, 8.3) vs 7.5(4.7, 12.4) min, P<0.05] increased. The changes in PVT parameters [ΔRT (r=0.20, P>0.05), Δslowest 10% RT (r=0.15, P>0.05), Δfastest 10% RT (r=0.24, P>0.05), and Δlapse (r=0.15, P>0.05)] were not correlated with the change in MSL. The significant association between the slowest 10% RT and ESS was found in baseline data. Conclusions: The change in MSL is not associated with the change in PVT performance before and after CPAP therapy. MSLT and PVT may be different in nature.
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Affiliation(s)
- F Lei
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041
| | - T M Li
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041
| | - L Tan
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041
| | - R Ren
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041
| | - X D Tang
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041
| | - L H Yang
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041
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112
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Hulou MM, Garcia CR, Slone SA, Dugan A, Lei F, Huang B, Pittman T, Villano JL. Comprehensive Review of Cranial Chordomas Using National Databases in the USA. Clin Oncol (R Coll Radiol) 2019; 31:e149-e159. [PMID: 31303332 DOI: 10.1016/j.clon.2019.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 04/01/2019] [Accepted: 04/15/2019] [Indexed: 02/08/2023]
Abstract
AIMS The management of cranial chordomas is controversial. We provide a comprehensive review of the evolving patterns of care of cranial chordomas in the USA. MATERIALS AND METHODS We analysed the National Cancer Database (NCDB) and the Surveillance, Epidemiology, and End Results (SEER) database between 2004 and 2014 for clinical characteristics and long-term survival, and the National Surgical Quality Improvement Program (NSQIP) dataset between 2005 and 2016 for perioperative characteristics and surgical morbidity. RESULTS In total, 936 patients were identified from the NCDB, 405 patients from SEER and 64 patients from the NSQIP. Most patients were men (56.2, 54.8 and 57.8% in NCDB, SEER and NSQIP, respectively) and White (80.9 and 83.2% in NCDB and SEER, respectively). Surgery was the preferred treatment modality (87.3% in NCDB and 86.2% in SEER). Surgery was carried out alone (41.8% in NCDB and 40.7% in SEER) or in combination with radiation (42.1% in NCDB and 45.4% in SEER). Proton therapy was the most common type of radiation (32.2% in NCDB), particularly after 2011. The median operative time, median hospital length and postoperative morbidity were significantly higher in chordoma patients compared with patients who underwent other skull-base procedures. The 5-year survival rate was 79.8% in NCDB and 76.9% in SEER. There was a trend towards longer survival in patients receiving surgery and radiation, which has been increasingly used since 2004. Patients younger than 60 years had a decreased risk of mortality. CONCLUSIONS Our analysis reflects patterns of care in the USA. The use of surgery and radiation is increasing, with a trend towards longer survival. Surgery is complicated with long operative time, hospital stay and a higher rate of complications.
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Affiliation(s)
- M M Hulou
- Department of Neurosurgery, University of Kentucky, Lexington, Kentucky, USA
| | - C R Garcia
- Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA
| | - S A Slone
- Department of Statistics, University of Kentucky, Lexington, Kentucky, USA
| | - A Dugan
- Department of Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky, USA
| | - F Lei
- College of Public Health, University of Kentucky, Lexington, Kentucky, USA
| | - B Huang
- Division of Cancer Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky, USA
| | - T Pittman
- Department of Neurosurgery, University of Kentucky, Lexington, Kentucky, USA
| | - J L Villano
- Markey Cancer Center, University of Kentucky, Lexington, Kentucky, USA; Department of Medicine, University of Kentucky, Lexington, Kentucky, USA; Department of Neurology, University of Kentucky, Lexington, Kentucky, USA.
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113
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Lei F, Tan L, Li TM, Ren R, Zhou JY, Zhou XY, Tang XD, Yang LH. [Association between mixed sleep apnea and treatment-emergent central sleep apnea]. Zhonghua Yi Xue Za Zhi 2019; 99:1864-1869. [PMID: 31269581 DOI: 10.3760/cma.j.issn.0376-2491.2019.24.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To examine the association between mixed sleep apnea (MA) and treatment-emergent central sleep apnea (TE-CSA). Methods: A total of 256 patients meeting the diagnostic criteria of moderate to severe obstructive sleep apnea (OSA) based on overnight polysomnography (PSG) and receiving continuous positive airway pressure (CPAP) therapy in West China Hospital, Sichuan University during the period from August 2013 to November 2018 were enrolled in the study. Based on the mixed apnea index (MAI) and apnea-hypopnea index (AHI) in the baseline PSG study during non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep, the subjects were categorized into three groups of A (MAI=0/h, n=110), B (NREM-MAI≥5/h and REM-MAI<5/h, n=72) and C (REM-MAI≥5/h and NREM-MAI< 5/h, n=74). Sleep and breathing related parameters before and after CPAP therapy among three groups and the difference of TE-CSA incidence were analyzed. Results: The AHI [(44.2(26.8,64.5)/h,66.6(56.0,81.7)/h, 79.8(63.6, 88.3)/h], REM-AHI [50.0(34.7, 64.7)/h, 60.1(49.1, 70.0)/h, 66.3(56.1, 74.6)/h] and NREM-AHI[43.5(25.9, 65.1)/h,67.6(53.7, 82.4)/h,81.3(64.2, 91.5)/h]) were higher in group B and C compared to group A (all P<0.05),while the mean and lowest oxygen saturation [(92.6%±3.5%),(90.8%±3.6%),(87.3%±5.1%) and (70.6%±14.1%), (61.0%±16.0%), (47.9%±17.0%)] were lower in group B and group C compared to group A (all P<0.05). The incidence of TE-CSA after initial CPAP was 7.8% in all patients, and the incidence was significantly higher in group B of 14.1% compared to group C of 4.1% and group A of 2.7% (all P<0.05). Conclusions: TE-CSA is correlated with baseline MA, and baseline MA in NREM sleep can predict the incidence of TE-CSA after initial CPAP.
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Affiliation(s)
- F Lei
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Tan
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - T M Li
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - R Ren
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Y Zhou
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X Y Zhou
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - X D Tang
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L H Yang
- Laboratory of Anesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu 610041, China
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Abstract
PROBLEM IDENTIFICATION Despite lung cancer screening guidelines and insurance coverage changes, rates of lung cancer screening with low-dose computed tomography remain suboptimal among the eligible population in the United States. LITERATURE SEARCH Electronic literature databases, including PubMed, CINAHL®, PsycINFO, and Google Scholar, were searched. DATA EVALUATION After applying filter information and inclusion and exclusion criteria, 10 articles were reviewed. Methodological rigor was evaluated. SYNTHESIS Based on the social-ecological approach, barriers to lung cancer screening at the individual level, including sociodemographic characteristics, financial cost, lack of knowledge, inaccurate beliefs about lung cancer screening, distrust of the medical system, stigma around smoking and lung cancer, negative attitudes about outcomes of lung cancer screening, and inconvenience of receiving lung cancer screening, were identified. Barriers at the health-system level included lack of information from primary care providers. IMPLICATIONS FOR PRACTICE Overcoming barriers to lung cancer screening at individual and health-system levels is essential to increase lung cancer screening uptake rates.
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Affiliation(s)
- Fang Lei
- University of California, Los Angeles
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115
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Yan X, Zhao F, Zhang S, Lei F, Wang W, Zheng Y. Hydrogen sulfide ameliorates disorders in the parafacial respiratory group region of neonatal rats caused by prenatal cigarette smoke exposure via an antioxidative effect. Environ Toxicol Pharmacol 2019; 68:80-90. [PMID: 30878717 DOI: 10.1016/j.etap.2019.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 02/27/2019] [Accepted: 03/03/2019] [Indexed: 06/09/2023]
Abstract
We previously found that hydrogen sulfide (H2S) ameliorated the dysfunction of central chemoreception caused by prenatal cigarette smoke exposure (CSE). In the present study, we further explored whether the parafacial respiratory group (pFRG) is involved in the protection of central chemoreception by H2S against prenatal CSE-induced injury. We found that NaHS, a donor of H2S, restored the expression of Phox2b, which was downregulated by prenatal CSE, in the pFRG region of neonatal rats. NaHS also relieved the prenatal CSE-induced excitatory synapse disturbance in the pFRG region of neonatal rats. Additionally, NaHS prevented the increase in the malondialdehyde level and suppression of antioxidase activity in the pFRG region of neonatal rats induced by prenatal CSE. Furthermore, NaHS prevented the downregulation of the expression of antioxidases and Nrf2 in the pFRG region of neonatal rats with prenatal CSE. These results suggest that H2S can protect the pFRG of neonatal rats against prenatal CSE-induced injury via an antioxidative effect.
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Affiliation(s)
- Xiang Yan
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Fusheng Zhao
- Department of Physiology, Mudanjiang Medical University, Mudanjiang, 157011 Heilongjiang, PR China
| | - Senfeng Zhang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Fang Lei
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Wen Wang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Yu Zheng
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China.
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Xie WG, Lei F, Wang J, Xu J, Ruan JJ, Li Z. [Clinical effects of sequential laser treatments on early stage hypertrophic burn scars]. Zhonghua Shao Shang Za Zhi 2019; 34:615-623. [PMID: 30293365 DOI: 10.3760/cma.j.issn.1009-2587.2018.09.011] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the clinical effects of sequential treatments of pulsed dye laser (PDL) and ablative fractional carbon dioxide laser on early stage hypertrophic burn scars. Methods: From January 2016 to December 2017, 221 patients with 228 hypertrophic scars in all parts of body within 6 months post healing, conforming to the study criteria and treated in our department, were included in this prospective study. They were first treated by PDL, repeated at an interval of one month until the vascularity score of scar fell below 2 points, and then treated by ablative fractional carbon dioxide laser, repeated at an interval of 3 months. Their start time and numbers of treatment and follow-up time were recorded. Before the first treatment (hereinafter referred to as before treatment) and at the last follow-up (hereinafter referred to as after treatment), the vascularity, thickness, and pliability of scars were scored by a self-made scar rating scale. The scores of patients with the observation time between 6 to18 months post healing were compared among scars of patients grouped by age, body site of scar, starting time of treatment and numbers of treatment. The laser speckle contrast imaging technique was used to measure the blood flow value of scars. The itching symptom of the scars was evaluated by the Verbal Rating Scale. The satisfaction to the final effects of the doctors and patients was investigated and scored separately by Likert scale after treatment. The therapeutic or adverse reactions were recorded during the treatment. Data were processed with paired t test, Mann-Whitney U test, Wilcoxon signed rank sum test, Kruskal-Wallis H test, and Spearman rank correlation analysis. Results: (1) The patients were treated on (64±36) d post healing, by PDL for (2.5±1.3) times and by ablative fractional carbon dioxide laser for (2.2±1.2) times. The follow-up time was (331±189) d. (2) The vascularity, thickness, pliability scores and total scores of scars were (1.4±0.9), (2.0±0.8), (1.7±0.8), and (5.0±2.1) points respectively after treatment, which were significantly lower than those before treatment [(4.1±0.7), (3.1±0.8), (3.0±0.9), and (10.2±2.0) points respectively, t=43.332, 24.968, 28.063, 46.394, P<0.01]. (3) Among the 123 scars from 120 patients with observation time between 6 to 18 months post healing, there were no statistically significant differences in the vascularity, thickness, pliability scores and total scores of scars among patients with different ages after treatment (χ(2)=4.339, 1.826, 1.375, 2.879, P>0.05). There was only significant difference in the pliability scores of scars among different body sites (χ(2)=13.530, P<0.05). There were statistically significant differences in the vascularity, thickness, pliability scores and total scores of scars with different starting time of treatment (χ(2)=30.725, 25.233, 25.119, 35.798, P<0.01). There were significantly positive correlation between starting time of treatment and the vascularity, thickness, pliability scores and total scores of scars (r=0.492, 0.442, 0.446, 0.532, P<0.01). There were statistically significant differences in the vascularity, pliability scores and total scores of scars with different numbers of treatment (Z=4.883, 4.910, 5.049, P<0.05). There were significantly negative correlation between number of treatment and the vascularity, thickness, pliability scores and total scores of scars (r=-0.176, -0.131, -0.191, -0.201, P<0.05). (4) The blood flow values were determined in 18 scars of 18 patients. The results showed that the blood flow values of scars after treatment were significantly decreased compared with those before treatment (t=7.230, P<0.01). (5) The pruritus scores of scars of patients after treatment were significantly decreased compared with those before treatment (Z=12.818, P<0.01). (6) There were significant differences between the satisfaction scores of doctors and the scores of patients after treatment (t=12.130, P<0.01). (7) After PDL treatment, there were some edema and purpura reactions for all the patients, and 11 (5.0%) patients had blisters. After ablative fractional carbon dioxide laser treatment, 4 (1.8%) patients had blisters, 5 (2.3%) patients suffered inflammatory reaction and erosion, and 9 (4.1%) patients suffered pigmentation. Conclusions: The scores of hypertrophic burn scars can be obviously improved by sequential treatments of PDL and ablative fractional carbon dioxide laser. The effects can be more obvious with the earlier starting time and more numbers of treatment. The laser treatments can also decrease the blood flow values and alleviate the pruritus of scars, with high satisfaction of both patients and doctors.
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Affiliation(s)
- W G Xie
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
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Xu D, Lei F, Chen H, Yin L, Shi Y, Xie J. One-step hydrothermal synthesis and optical properties of self-quenching-resistant carbon dots towards fluorescent ink and as nanosensors for Fe3+ detection. RSC Adv 2019; 9:8290-8299. [PMID: 35518653 PMCID: PMC9061779 DOI: 10.1039/c8ra10570g] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [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: 12/26/2018] [Accepted: 02/25/2019] [Indexed: 11/25/2022] Open
Abstract
In our work, blue photoluminescent N-doped carbon dots (CDs) were developed via a green and simple hydrothermal method with citric acid and polyvinyl pyrrolidone (PVP K-30) as the carbon source and the nitrogen source, respectively. The as-prepared CDs have a high fluorescent quantum yield of 30.21% and considerable luminescence stability. The fluorescence intensity of the CDs was found to be effective quenched when adding Fe3+ ions to the CDs solution. The quenching phenomenon can be used to detect Fe3+ ions within a linear range of 0–300 μM with a detection limit of 45.5 nmol L−1, which suggested its potential application in the detection of Fe3+ ions. At the same time, we also noted the excellent self-quenching-resistant property of the as-prepared CDs in the solid state, and bright blue fluorescence was observed under UV excitation. What's more, the as-prepared CDs can also be used as fluorescent ink and were presented under UV excitation. Blue CDs with a quantum yield of 30.21% were successfully synthesized by a simple one-pot hydrothermal treatment using citric acid (carbon source) and polyvinyl pyrrolidone (nitrogen source) as the raw materials towards fluorescent ink and as nanosensors for Fe3+ detection.![]()
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Affiliation(s)
- Dandan Xu
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Fang Lei
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Haohong Chen
- Key Laboratory of Transparent Opto-functional Inorganic Materials
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Luqiao Yin
- Key Laboratory of Advanced Display and System Applications
- Shanghai University
- Shanghai 200072
- P. R. China
| | - Ying Shi
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
| | - Jianjun Xie
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200444
- PR China
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Lei F, Wang W, Fu Y, Wang J, Zheng Y. Oxidative stress and mitochondrial dysfunction in parafacial respiratory group induced by maternal cigarette smoke exposure in rat offspring. Free Radic Biol Med 2018; 129:169-176. [PMID: 30193892 DOI: 10.1016/j.freeradbiomed.2018.09.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 08/30/2018] [Accepted: 09/02/2018] [Indexed: 01/06/2023]
Abstract
Cigarette smoke (CS) exposure negatively affects neurodevelopment. We established a CS exposure rat model to determine how maternal CS exposure induces oxidative stress and mitochondrial dysfunction in parafacial respiratory group (pFRG) essential to central chemoreceptive regulation of normal breathing. Pregnant rats were exposed to CS during gestational days 1-20, and the offspring were studied on postnatal day 2. Our data showed that maternal CS exposure resulted in elevated accumulation of ROS, which left a footprint on DNA and lipid with increases in 8-hydroxy-2'-deoxyguanosine and malondialdehyde contents. Furthermore, maternal CS exposure induced decreases in manganese superoxide dismutase, catalase and glutathione reductase activities as well as reduction in glutathione content in pFRG in the offspring. Moreover, maternal exposure to CS led to mitochondrial ultrastructure changes, mitochondrial swelling, reduction in ATP generation, loss of mitochondrial membrane potential and increase in mitochondrial DNA copy number. These findings suggest that maternal exposure to CS alters normal development of pFRG that is critical for normal respiratory control.
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Affiliation(s)
- Fang Lei
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, 3-17 Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Wen Wang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, 3-17 Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Yating Fu
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, 3-17 Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Ji Wang
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, 3-17 Renmin South Road, Chengdu, Sichuan 610041, PR China
| | - Yu Zheng
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, 3-17 Renmin South Road, Chengdu, Sichuan 610041, PR China.
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Zhao F, Lei F, Yan X, Zhang S, Wang W, Zheng Y. Protective Effects of Hydrogen Sulfide Against Cigarette Smoke Exposure-Induced Placental Oxidative Damage by Alleviating Redox Imbalance via Nrf2 Pathway in Rats. Cell Physiol Biochem 2018; 48:1815-1828. [DOI: 10.1159/000492504] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 07/30/2018] [Indexed: 11/19/2022] Open
Abstract
Background/Aims: Cigarette smoke exposure (CSE) during pregnancy is a well-recognized health hazard that causes placental damage. Hydrogen sulfide (H2S) has been reported to protect multiple organs from injury. However, the protective effects of H2S have not been tested in the placenta. This study aimed to explore the potential of H2S in protecting placenta against oxidative injury induced by CSE during pregnancy and the possible underlying mechanisms. Methods: Pregnant SD rats were randomly divided into 4 groups: NaCl, NaHS (a donor of H2S), CSE and CSE+NaHS. Placental oxidative damage was detected by 8-hydroxy-2-deoxyguanosine (8-OHdG) stain and malondialdehyde (MDA) assay. Placental redox status was assessed by measuring reactive oxygen species (ROS), total antioxidant capacity (T-AOC) and glutathione (GSH) levels, as well as copper/zinc SOD (SOD1), manganese SOD (SOD2), catalase (CAT) and glutathione peroxidase (GPx) activities and expressions. Meanwhile, nuclear factor erythroid 2-related factor 2 (Nrf2) was analyzed by immunohistochemistry, real-time PCR and Western blot. Results: We found that NaHS markedly reduced the elevated levels of 8-OHdG and MDA induced by CSE. Further, NaHS treatment effectively mitigated CSE-induced placental redox imbalance by inhibiting ROS production, restoring T-AOC level, increasing GSH/GSSG ratio, and augmenting SOD1 SOD2, CAT and GPx activities and expressions. More notably, NaHS administration also reversed the aberrant decrease of Nrf2 due to CSE in rat placentas. Conclusion: Our data demonstrate that H2S can protect against CSE-induced placental oxidative damage probably by alleviating redox imbalance via Nrf2 pathway.
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Xie M, Lei F, Guo D, Ma Y, Tang XD, Zhou JY. [Diagnosis of obstructive sleep apnea using cardiopulmonary coupling analysis]. Zhonghua Yi Xue Za Zhi 2018; 98:1565-1569. [PMID: 29886645 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.007] [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: 06/08/2023]
Abstract
Objective: To explore the diagnostic value of cardiopulmonary coupling analysis in the screening of obstructive sleep apnea (OSA). Methods: A total of 44 participants with sleep disorders from Sleep Medicine Center of West China Hospital in May 2016 were included in the study. All participants were monitored with cardiopulmonary coupling while undergoing polysomnography (PSG). The sleep parameters detected by cardiopulmonary coupling and PSG were compared and the correlation between respiratory disturbance index (RDI) of cardiopulmonary coupling and sleep parameters of PSG were analyzed. Using PSG as "golden standard" , the sensitivity, specificity, positive predictive value, negative predictive value and the corresponding areas under the receiver operating characteristic (ROC) curves were calculated for cardiopulmonary coupling. Results: There were 44 participants included in the study (37 males and 7 females) with a mean age of (46.3±12.5) years old and a mean body mass index of (25.6±3.7) kg/m(2). And there were 33 subjects diagnosed with OSA. There were no significant difference between respiratory disturbance index (RDI) derived from cardiopulmonary coupling and apnea-hypopnea index (AHI) derived from PSG. Correlation analysis showed that the RDI, low frequency coupling monitored by cardiopulmonary coupling was positively correlated with AHI detected by PSG (r=0.849, 0.850, both P<0.001); and the high frequency coupling was significantly negatively correlated with AHI (r=-0.767, P<0.001). For AHI ≥5/h, ≥10/h, ≥15/h, ≥20/h and ≥30/h respectively according to PSG, sensitivity was 0.82, 0.93, 0.96, 0.96, 0.77, specificity was 0.50, 0.75 0.72, 0.80, 0.86, positive predictive value was 0.85, 0.87, 0.83, 0.85, 0.85, negative predictive value was 0.55, 0.86, 0.93, 0.94, 0.79 for cardiopulmonary coupling. The corresponding areas under the ROC curves were 0.868, 0.892, 0.915, 0.942, 0.921 respectively. In addition, when the RDI derived from CPC was higher than 20.4/h, the patients were more likely suffering from OSA, and the sensitivity was 0.79 and the specificity was 0.91. Conclusions: The results of cardiopulmonary coupling are consistent with simultaneous PSG parameters. Cardiopulmonary coupling has a highly diagnostic value for sleep respiratory disorder.
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Affiliation(s)
- M Xie
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
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121
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Yang XR, Ren R, Li X, He JM, Xue XF, Zhang Y, Lei F, Tang XD, Yang LH. [Effects of continuous positive airway pressure on periodic limb movements during sleep in patients with obstructive sleep apnea]. Zhonghua Yi Xue Za Zhi 2018; 98:1570-1573. [PMID: 29886646 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the effects of continuous positive airway pressure (CPAP) on periodic limb movements during sleep (PLMS) in patients with obstructive sleep apnea (OSA). Methods: The polysomnography (PSG) data of 828 consecutive OSA outpatients from January 2015 to January 2017 who had undergone overnight CPAP titration were analyzed retrospectively. On the basis of changes in periodic limb movements index (PLMI) values (cut off level≥15/h) from baseline PSG (BPSG) to CPAP titration PSG, patients were assigned to one of the following four groups: persistent, CPAP-emergent, CPAP-disappeared, and non-PLMS. Results: Among 828 patients, 756 (91.3%) were male and 72 (8.7%) were female. The mean age was (45.7±10.7) years old, the mean body mass index (BMI) was (27.6±3.5) kg/m(2). The rate of patients was 3.9% in the persistent group, 10.3% in the CPAP-emergent group, 7.5% in the CPAP-disappearance group, and 78.4% in the non-PLMS group. Multivariate Logistic regression analysis revealed that female appeared to be associated with the persistent group (P=0.004); older age and higher apnea-hypopnea index (AHI) on BPSG appeared to be associated with the CPAP-emergent group (P=0.012, 0.030). On the other hand, older age was negatively associated with the non-PLMS group (P=0.006). Conclusion: Elderly patients with higher AHI at BPSG may present with CPAP-emergent PLMS.
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Affiliation(s)
- X R Yang
- Out-patient Department, West China Hospital, Sichuan University, Chengdu 610041, China
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Zhao F, Lei F, Zhang S, Yan X, Wang W, Zheng Y. Hydrogen sulfide alleviates placental injury induced by maternal cigarette smoke exposure during pregnancy in rats. Nitric Oxide 2018; 74:102-111. [DOI: 10.1016/j.niox.2017.07.003] [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] [Received: 12/15/2016] [Revised: 05/28/2017] [Accepted: 07/10/2017] [Indexed: 12/25/2022]
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Xiao W, Yin L, Zhou J, Lei F, Shi Y, Xie J, Zhang L. Influence of reaction parameters on the luminescence properties of monodisperse NaGd(1−−)(WO4)2:xEu3+,yTb3+ phosphor by molten salt synthesis. J RARE EARTH 2018. [DOI: 10.1016/j.jre.2017.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Yan X, Lei F, Hu Y, Nie L, Jia Q, Zhou H, Zhao F, Zheng Y. Hydrogen sulfide protects neonatal rat medulla oblongata against prenatal cigarette smoke exposure via anti-oxidative and anti-inflammatory effects. Environ Toxicol Pharmacol 2018; 57:151-158. [PMID: 29274628 DOI: 10.1016/j.etap.2017.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 11/14/2017] [Accepted: 12/16/2017] [Indexed: 06/07/2023]
Abstract
We previously demonstrated that hydrogen sulfide (H2S) protected neonatal rat medulla oblongata from prenatal cigarette smoke exposure (CSE) via anti-apoptotic effect. The present work further investigated the involvement of anti-oxidative and anti-inflammatory effects of H2S in the protection. Pregnant Sprague-Dawley rats were randomly divided into NaCl, CSE, CSE + NaHS (a donor of H2S) and NaHS groups. All the tests were performed with corresponding neonatal rats. Nissl staining revealed that NaHS treatment ameliorated neuronal chromatolysis in the hypoglossal nucleus and nucleus ambiguus resulted from prenatal CSE. Moreover, NaHS eliminated decrease of glutathione level, increase of malondialdehyde content and inhibition of superoxide dismutase activity within neonatal rat medulla oblongata caused by prenatal CSE. NaHS also relieved the up-regulation of tumor necrosis factor-α, interleukin-1β and interleukin-6 in the medulla oblongata of the neonatal CSE rats. These results suggest that H2S can alleviate prenatal CSE-induced injuries of neonatal rat medulla oblongata through anti-oxidative and anti-inflammatory effects.
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Affiliation(s)
- Xiang Yan
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Fang Lei
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Yajie Hu
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Lihong Nie
- Department of Physiology, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004 Ningxia, PR China
| | - Qingyi Jia
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Hua Zhou
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China
| | - Fusheng Zhao
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China.
| | - Yu Zheng
- Department of Physiology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, 610041 Sichuan, PR China.
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125
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Xie M, Ren R, He JM, Xue XF, Li TM, Tan L, Lei F, Tang XD, Yang LH. [Gender differences of REM related obstructive sleep apnea-hypopnea syndrome]. Zhonghua Yi Xue Za Zhi 2017; 97:3763-3767. [PMID: 29325332 DOI: 10.3760/cma.j.issn.0376-2491.2017.48.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To explore the gender differences of rapid-eye-movement (REM) related obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: Consecutive patients with primary complaint of snoring from Sleep Medicine Center of West China Hospital between January 2016 and November 2016 were included in the study. All participants underwent one night polysomnography (PSG) and Epworth sleep scale (ESS) was estimated. The patients diagnosed with OSAHS were classified as REM related OSAHS (REM-OSAHS group) and non-rapid-eye-movement (NREM) related OSAHS (NREM-OSAHS group) based on the PSG parameters. And the gender differences of demographic and polysomnograpic characteristics in both groups were compared. The associations between apnea-hypopnea index (AHI) and body mass index (BMI), neck circumference and waist circumference among patients with OSAHS were explored by multiple linear regression analysis. Results: A total of 1 258 patients were diagnosed with OSAHS. There were 997 (79.3%) male and 261 (20.7%) female among these patients, the mean age was (46.4±12.0) years old and mean BMI was (26.6±3.4) kg/m(2). There were 236 patients (18.8%) classified into REM-OSAHS group, and 1 022 patients (81.2%) classified into NREM-OSAHS group; the proportion of REM-OSAHS in female was significantly higher than that in male (34.1% vs 14.7%, P<0.001). After controlling for age, drinking, smoking, hypnotics, coffee, strong tea and sleep related parameters, in NREM-OSAHS group, AHI was positively correlated with BMI, neck circumference and waist circumference (P<0.001) both in male and female. In REM-OSAHS group, AHI was positively correlated with BMI, neck circumference and waist circumference in female (P<0.05), but only significantly correlated with BMI and waist circumference in male (P<0.05). Conclusions: REM-OSAHS is commonly seen in female OSAHS patients. Evaluation of the influences of anthropometric data on the severity of REM-OSAHS should consider the impact of gender.
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Affiliation(s)
- M Xie
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China (He Jiaming and Xue Xiaofang is working at the Department of Respiratory of Diqing Tibetan Autonomous Prefectural People's Hospital)
| | | | | | - X F Xue
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China (He Jiaming and Xue Xiaofang is working at the Department of Respiratory of Diqing Tibetan Autonomous Prefectural People's Hospital)
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Zhang S, Lei F, Zhao F, Yan X, Wang W, Zheng Y. Hydrogen sulfide ameliorates prenatal cigarette smoke exposure-induced impairment of respiratory responses to hypercapnia in neonatal rats. Respir Physiol Neurobiol 2017; 243:1-6. [DOI: 10.1016/j.resp.2017.04.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/15/2017] [Accepted: 04/20/2017] [Indexed: 11/26/2022]
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Ru TF, Li FF, Chen P, Luo H, Yuan L, Lei F, Tang YL, Xie WG. [Clinical effects of Joint Active System on the treatment of joint dysfunction after deep burn]. Zhonghua Shao Shang Za Zhi 2017. [PMID: 28651416 DOI: 10.3760/cma.j.issn.1009-2587.2017.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the clinical effects of the Joint Active System on the treatment of joint dysfunction after deep burn. Methods: Twenty-two patients with joint dysfunction after deep burn were hospitalized in Institute of Burns of Tongren Hospital of Wuhan University & Wuhan Third Hospital from January 2015 to October 2016, involving 18 elbow joints with flexion disorder, 10 wrist joints with dorsal extension disorder, and 12 ankle joints with dorsal extension disorder. They were treated with the elbow joint activity training device, the wrist joint activity training device, and the ankle joint activity training device of the Joint Active System, respectively. The treatment was carried out 3 times each day with interval of 6 h, 30 minutes each time, and it lasted for four to seven months, with one month as a course of treatment. Before treatment and 1, 2, 3, 4 month (s) after, active motion range of each joint was measured by joint goniometer. Function improvement of each joint was evaluated, and the total effective ratio was calculated 4 months after treatment. Satisfaction degree of patients was assessed by the modified Likert Scale 1, 2, 3, 4 month (s) after treatment. Data were processed with one-way analysis of variance for repeated measurement and LSD test. Results: Before treatment and 1, 2, 3, 4 month (s) after, flexion active motion range of elbow joints were (61±23), (78±22), (89±20), (96±20), and (103±19)°; dorsal extension active motion range of wrist joints were (23±7), (31±6), (38±9), (44±5), and (49±8)°; dorsal extension active motion range of ankle joints were (-31±12), (-23±10), (-16±7), (-12±6), and (-8±4)°, respectively. The active motion range of each joint was obviously higher 1, 2, 3, 4 month (s) after treatment than the previous time point of the same joint (with P values below 0.01). Four months after treatment, the total effective ratios of function improvement of elbow joints, wrist joints, and ankle joints were 5/6, 9/10, and 2/3, respectively. Scores of satisfaction degree of the patients 1, 2, 3, 4 month (s) after treatment were (1.3±0.7), (2.2±1.0), (2.8±0.8), and (3.3±0.6) points, respectively. Scores of satisfaction degree of the patients were obviously higher 2, 3, 4 months after treatment than the previous time point (with P values below 0.05). Conclusions: Joint Active System can improve the active range of motion of each joint obviously in treating joint dysfunction after deep burn, with total effective ratio of function improvement of each joint surpassing 0.66, and the majority of patients are quite satisfied with the curative effects.
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Affiliation(s)
- T F Ru
- Institute of Burns, Tongren Hospital of Wuhan University & Wuhan Third Hospital, Wuhan 430060, China
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Tan L, Ren R, Zhang Y, Zhou J, Li T, Xie M, Lei F, Li Y, Tang X. 0620 DIFFERENCES IN THE DURATION OF OBSTRUCTIVE SLEEP APNEA EVENTS AMONG HIGHLAND TIBETANS AND HANS AND LOWLAND HANS AT LOW ALTITUDE. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.619] [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: 11/13/2022] Open
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Li TM, Ren R, Tan L, Lei F, Tang XD. [Association between subjective and objective sleepiness in obstructive sleep apnea hypopnea syndrome patients]. Zhonghua Yi Xue Za Zhi 2017; 97:906-910. [PMID: 28355750 DOI: 10.3760/cma.j.issn.0376-2491.2017.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To examine the association between subjective sleepiness and objective sleepiness in Chinese obstructive sleep apnea hypopnea syndrome (OSAHS) patients. Methods: A total of 1 660 patients meeting the diagnostic criteria of OSAHS based on overnight polysomnography from West China Hospital, Sichuan University in the period from Jul 2010 to Jul 2014 were enrolled in the study. The Epworth Sleepiness Scale (ESS) and Multiple Sleep Latency Test (MSLT) were to evaluate subjective and objective sleepiness, respectively. The subjects were categorized into quartiles [A (0-4) (n=406), B (5-7) (n=325), C (8-12) (n=443), D(13-24) (n=486) groups] based on the ESS score distribution. Survival analysis was used to characterize the association between the ESS score and the mean sleep latency (MSL). Results: The apnea hypopnea index (AHI) in D group was higher than other three groups [(58.7±26.1) vs (36.8±24.2), (42.6±26.7), (45.7±26.6) events/h, all P<0.05]. The mean sleep latency in D group was shorter than other three groups [(8.0±4.6) vs (10.9±4.4), (10.3±4.8), (9.4±4.5) min, all P<0.05]. The Kaplan-Meier survivor functions across the ESS score quartiles were distinct and fourth quartiles were progressively associated with a greater tendency for falling asleep (χ(2)=77.76, P<0.001 by Log-rank test) in the daytime (The percentages of awaking patients in fourth quartiles were progressively lower at the same time). The adjusted hazard ratios for sleep onset during the MSLT for the group B, C and D were 1.05 (95%CI: 0.90-1.22), 1.22 (95%CI: 1.07-1.40), and 1.38 (95%CI: 1.20-1.60), respectively, comparing to group A. Conclusion: Subjective report of daytime sleepiness is consistent with the objective sleepiness in OSAHS patients.
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Affiliation(s)
- T M Li
- Sleep Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
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Li CQ, Huang GW, Wu ZY, Xu YJ, Li XC, Xue YJ, Zhu Y, Zhao JM, Li M, Zhang J, Wu JY, Lei F, Wang QY, Li S, Zheng CP, Ai B, Tang ZD, Feng CC, Liao LD, Wang SH, Shen JH, Liu YJ, Bai XF, He JZ, Cao HH, Wu BL, Wang MR, Lin DC, Koeffler HP, Wang LD, Li X, Li EM, Xu LY. Integrative analyses of transcriptome sequencing identify novel functional lncRNAs in esophageal squamous cell carcinoma. Oncogenesis 2017; 6:e297. [PMID: 28194033 PMCID: PMC5337622 DOI: 10.1038/oncsis.2017.1] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [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: 09/08/2016] [Revised: 12/17/2016] [Accepted: 12/23/2016] [Indexed: 02/05/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have a critical role in cancer initiation and progression, and thus may mediate oncogenic or tumor suppressing effects, as well as be a new class of cancer therapeutic targets. We performed high-throughput sequencing of RNA (RNA-seq) to investigate the expression level of lncRNAs and protein-coding genes in 30 esophageal samples, comprised of 15 esophageal squamous cell carcinoma (ESCC) samples and their 15 paired non-tumor tissues. We further developed an integrative bioinformatics method, denoted URW-LPE, to identify key functional lncRNAs that regulate expression of downstream protein-coding genes in ESCC. A number of known onco-lncRNA and many putative novel ones were effectively identified by URW-LPE. Importantly, we identified lncRNA625 as a novel regulator of ESCC cell proliferation, invasion and migration. ESCC patients with high lncRNA625 expression had significantly shorter survival time than those with low expression. LncRNA625 also showed specific prognostic value for patients with metastatic ESCC. Finally, we identified E1A-binding protein p300 (EP300) as a downstream executor of lncRNA625-induced transcriptional responses. These findings establish a catalog of novel cancer-associated functional lncRNAs, which will promote our understanding of lncRNA-mediated regulation in this malignancy.
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Affiliation(s)
- C-Q Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - G-W Huang
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Z-Y Wu
- Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - Y-J Xu
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - X-C Li
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - Y-J Xue
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Y Zhu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - J-M Zhao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - M Li
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - J Zhang
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - J-Y Wu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - F Lei
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - Q-Y Wang
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - S Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
| | - C-P Zheng
- Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - B Ai
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - Z-D Tang
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - C-C Feng
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - L-D Liao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - S-H Wang
- Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - J-H Shen
- Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-sen University, Shantou, China
| | - Y-J Liu
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - X-F Bai
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, China
| | - J-Z He
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - H-H Cao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - B-L Wu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
| | - M-R Wang
- Cancer Institute/Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - D-C Lin
- Division of Hematology/Oncology, Cedars-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, CA, USA
| | - H P Koeffler
- Division of Hematology/Oncology, Cedars-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, CA, USA
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
- National University Cancer Institute of Singapore, National University Health System and National University Hospital, Singapore, Singapore
| | - L-D Wang
- Henan Key Laboratory for Esophageal Cancer Research of The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - X Li
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
- College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China. E-mail:
| | - E-M Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong 515041, China. E-mail:
| | - L-Y Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, China
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, No. 22, Xinling Road, Shantou, Guangdong 515041, China. E-mail:
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Lei F, Li C, Zhou S, Wang D, Zhao Y, Wu Y. Hyphenation of supercritical fluid chromatography with tandem mass spectrometry for fast determination of four aflatoxins in edible oil. Rapid Commun Mass Spectrom 2016; 30 Suppl 1:122-127. [PMID: 27539426 DOI: 10.1002/rcm.7619] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
RATIONALE Aflatoxins (AFTs) are of great concern all over the world. Supercritical fluid chromatography (SFC) has the advantage of fast, high resolution and excellent compatibility with a broad range of organic solvents and samples, thus hyphenating SFC with tandem mass spectrometry (MS/MS) can be used for the easy and fast determination of AFTs in edible oils. METHODS Edible oil was spiked with isotope-labeled aflatoxin standards, diluted with hexane and extracted with acetonitrile. The extraction was directly loaded to an SFC apparatus and separated on a UPC(2) 2-EP column with CO2 -methanol gradient elution. A post-column make-up flow was introduced to facilitate mass spectrometry performance, and the mixture was analyzed by MS/MS with an electrospray ionization (ESI) source. RESULTS The SFC conditions including separation column, modifier and sample solvent were optimized, and the four target aflatoxins were baseline separated. The ESI interface parameters were also investigated, implicating the make-up flow as a critical factor for sensitive determination by SFC-MS/MS. The LOQs for the AFTs were 0.05-0.12 μg L(-1) , while the RSDs were lower than 8.5%. CONCLUSIONS Supercritical fluid chromatography was successfully coupled to tandem mass spectrometry to establish a simple, fast and sensitive method for the analysis of four aflatoxins in edible oil. This shows the combination of SFC-MS/MS has great potential in determination of trace contaminants in food. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Fang Lei
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Chenglong Li
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Shuang Zhou
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Dan Wang
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Yunfeng Zhao
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
| | - Yongning Wu
- China National Center for Food Safety Risk Assessment, Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing, 100021, China
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Yan X, Li B, Lei F, Feng X, Pang B. Enhanced deodorization and sludge reduction in situ by a humus soil cooperated anaerobic/anoxic/oxic (A2O) wastewater treatment system. Environ Sci Pollut Res 2016; 23:15963-15969. [PMID: 27146529 DOI: 10.1007/s11356-016-6771-5] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 04/26/2016] [Indexed: 06/05/2023]
Abstract
Simultaneous sludge reduction and malodor abatement in humus soil cooperated an anaerobic/anoxic/oxic (A2O) wastewater treatment were investigated in this study. The HSR-A2O was composed of a humus soil reactor (HSR) and a conventional A2O (designated as C-A2O).The results showed that adding HSR did not deteriorate the chemical oxygen demand (COD) removal, while total phosphorus (TP) removal efficiency in HSR-A2O was improved by 18 % in comparison with that in the C-A2O. Both processes had good performance on total nitrogen (TN) removal, and there was no significant difference between them (76.8 and 77.1 %, respectively). However, NH4 (+)-N and NO3 (-)-N were reduced to 0.3 and 6.7 mg/L in HSR-A2O compared to 1.5 and 4.5 mg/L. Moreover, adding HSR induced the sludge reduction, and the sludge production rate was lower than that in the C-A2O. The observed sludge yield was estimated to be 0.32 kg MLSS/day in HSR-A2O, which represent a 33.5 % reduction compared to a C-A2O process. Activated sludge underwent humification and produced more humic acid in HSR-A2O, which is beneficial to sludge reduction. Odor abatement was achieved in HSR-A2O, ammonium (NH3), and sulfuretted hydrogen (H2S) emission decreased from 1.34 and 1.33 to 0.06 mg/m(3), 0.025 mg/m(3) in anaerobic area, with the corresponding reduction efficiency of 95.5 and 98.1 %. Microbial community analysis revealed that the relevant microorganism enrichment explained the reduction effect of humus soil on NH3 and H2S emission. The whole study demonstrated that humus soil enhanced odor abatement and sludge reduction in situ.
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Affiliation(s)
- Xing Yan
- Guangzhou Sewage Purification Co., LTD., Guangzhou, 510163, Guangdong, China.
| | - Biqing Li
- Guangzhou Sewage Purification Co., LTD., Guangzhou, 510163, Guangdong, China
| | - Fang Lei
- Guangzhou Sewage Purification Co., LTD., Guangzhou, 510163, Guangdong, China
| | - Xin Feng
- Guangzhou Sewage Purification Co., LTD., Guangzhou, 510163, Guangdong, China
| | - Bo Pang
- Guangzhou Sewage Purification Co., LTD., Guangzhou, 510163, Guangdong, China
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133
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Lei F, Yan X, Zhao F, Zhang S, Zhang Q, Zhou H, Zheng Y. Impairment of Central Chemoreception in Neonatal Rats Induced by Maternal Cigarette Smoke Exposure during Pregnancy. PLoS One 2015; 10:e0137362. [PMID: 26333001 PMCID: PMC4557912 DOI: 10.1371/journal.pone.0137362] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/15/2015] [Indexed: 11/19/2022] Open
Abstract
It has been postulated that prenatal cigarette smoke exposure (CSE) increases the risk for sudden infant death syndrome. The victims of infant death syndrome suffer from respiratory abnormalities, such as central apnea, diminished chemoreflex and alteration in respiratory pattern during sleep. However, no experimental evidence on CSE model exists to confirm whether prenatal CSE gives rise to reduction of neonatal central chemoreception in in vitro preparations in absence of peripheral sensory feedback. The aim of the present study was to test the hypothesis that maternal CSE during pregnancy depresses central chemoreception of the neonatal rats. The pregnant rats were divided into two groups, control (n = 8) and CSE (n = 8). Experiments were performed on neonatal (0-3days) rat pups. Fictive respiratory activity was monitored by recording the rhythmic discharge from the hypoglossal rootlets of the medullary slices obtained from the neonatal rats. The burst frequency (BF) and integrated amplitude (IA) of the discharge were analyzed. Their responses to acidified artificial cerebrospinal fluid (aCSF) were tested to indicate the change of the central chemosensitivity. Under condition of perfusing with standard aCSF (pH 7.4), no significant difference was detected between the two groups in either BF or IA (P>0.05). Under condition of perfusing with acidified aCSF (pH 7.0), BF was increased and IA was decreased in both groups (P<0.01). However, their change rates in the CSE group were obviously smaller than that in the control group, 66.98 ± 10.11% vs. 143.75 ± 15.41% for BF and -22.38 ± 2.51% vs. -44.90 ± 3.92% for IA (P<0.01). In conclusion, these observations, in a prenatal CSE model, provide important evidence that maternal smoking during pregnancy exerts adverse effects on central chemoreception of neonates.
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Affiliation(s)
- Fang Lei
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Xiang Yan
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Fusheng Zhao
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Senfeng Zhang
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Qilan Zhang
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Hua Zhou
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
| | - Yu Zheng
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan, PR China
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Lei F, Yan X, Zhao F, Zhang S, Zhang Q, Zhou H, Zheng Y. Exogenous hydrogen sulfide alleviates impairment of central chemoreception induced by prenatal cigarette smoke exposure in neonatal rats. Nitric Oxide 2015. [DOI: 10.1016/j.niox.2015.02.098] [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: 10/23/2022]
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Li M, Gu D, Xu N, Lei F, Du L, Zhang Y, Xie W. Gut carbohydrate metabolism instead of fat metabolism regulated by gut microbes mediates high-fat diet-induced obesity. Benef Microbes 2015; 5:335-44. [PMID: 24675232 DOI: 10.3920/bm2013.0071] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate the mechanisms underlying the involvement of gut microbes in body weight gain of high-fat diet-fed obesity-prone (obese) and obesity-resistant (lean) mice. C57BL/6 mice were grouped into an obese group, a lean group and a normal control group. Both obese and lean mice were fed a high-fat diet while normal control mice were fed a normal diet; they were observed for six weeks. The results showed that lean mice had lower serum lipid levels, body fat and weight gain than obese mice. The ATPase, succinate dehydrogenase and malate dehydrogenase activities in liver as well as oxygen expenditure and rectal temperature of lean mice were significantly lower than in obese mice. As compared with obese mice, the absorption of intestinal carbohydrates but not of fats or proteins was significantly attenuated in lean mice. Furthermore, 16S rRNA abundances of faecal Firmicutes and Bacteroidetes were significantly reduced in lean mice. In addition, faecal β-D-galactosidase activity and short chain fatty acid levels were significantly decreased in lean mice. Expressions of peroxisome proliferator-activated receptor gamma 2 and CCAAT/enhancer binding protein-β in visceral adipose tissues were significantly downregulated in lean mice as compared with obese mice. Resistance to dyslipidaemia and high-fat diet-induced obesity was mediated by ineffective absorption of intestinal carbohydrates but not of fats or proteins, probably through reducing gut Bacteroidetes and Firmicutes contents and lowering of gut carbohydrate metabolism. The regulation of intestinal carbohydrates instead of fat absorption by gut microbes might be a potential treatment strategy for high-fat diet-induced obesity.
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Affiliation(s)
- M Li
- School of Life Sciences, Tsinghua University, Beijing, 100084, China P.R. Shenzhen Key Lab of Health Science and Technology, Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China P.R
| | - D Gu
- Institute of Disease Control and Prevention, Shenzhen International Travel Health Care Center, Shenzhen Entry-Exit Inspection and Quarantine Bureau, 518045 Shenzhen, China P.R
| | - N Xu
- Shenzhen Key Lab of Health Science and Technology, Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China P.R
| | - F Lei
- School of Life Sciences, Tsinghua University, Beijing, 100084, China P.R
| | - L Du
- School of Life Sciences, Tsinghua University, Beijing, 100084, China P.R
| | - Y Zhang
- Shenzhen Key Lab of Health Science and Technology, Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China P.R
| | - W Xie
- Shenzhen Key Lab of Health Science and Technology, Division of Life Science & Health, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China P.R
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Xie L, Lai Y, Lei F, Liu S, Liu R, Wang T. Exploring the association between interleukin-1β and its interacting proteins in Alzheimer's disease. Mol Med Rep 2015; 11:3219-28. [PMID: 25585621 PMCID: PMC4368090 DOI: 10.3892/mmr.2015.3183] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 06/19/2014] [Indexed: 11/17/2022] Open
Abstract
Alzheimer’s disease (AD) is an age-associated progressive neurodegenerative disorder which is of clinical concern. The association between the nervous and immune system is defined as an neuroimmunological theory that supports a model of pathology or treatment for AD. Interleukin (IL)-1β has a pro-inflammatory function in AD; however, the mechanism of its dysregulation in AD remains unknown. It is therefore of significance to understand the molecular mechanisms of IL-1β and how it may regulate AD. Proteins, which have been previously reported to be associated with IL-1β in AD, have been used in the present study as nodes to illustrate a net of protein interaction in Cytoscape. The Kyoto Encyclopedia of Genes and Genomes was used to further analyze the association of these proteins with the pathology of AD. The present study identified and subsequently compared two AD and six IL-1β pathways with the network produced in Cytoscape. The present study identified important mechanisms in the pathology of AD and constructed two novel networks using Cytoscape.
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Affiliation(s)
- Lushuang Xie
- Department of Histology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yu Lai
- Department of Histology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan 610072, P.R. China
| | - Fang Lei
- Department of Physiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Sujuan Liu
- Department of Histology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ran Liu
- Department of Histology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Tinghua Wang
- Department of Histology and Neurobiology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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137
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Lei F, Tang Y, Chen P, Luo H, Wang J, Xie W. [Curative effects of kinesitherapy in combination with self-made simple orthosis in treatment of scar contracture of burned hand in children]. Zhonghua Shao Shang Za Zhi 2014; 30:477-481. [PMID: 25608782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To survey the curative effects of kinesitherapy in combination with self-made simple orthosis (SO) in treatment of scar contracture of burned hand in children. METHODS Fifty-eight children with burns of unilateral hand and received treatment in our rehabilitation center from January 2012 to January 2014 were divided into common rehabilitation (CR) and SO groups according to the random number table, with 29 cases in each group. After the wounds were healed, patients in group CR were treated with kinesitherapy combined with hand game exercises and pressure gloves, while patients in group SO were treated with kinesitherapy combined with hand game exercises and self-made SO, which was composed of finger web dividing belt, self-adhesive bandage, and infusion set fixing plate. Before treatment and 16 weeks after treatment, scar condition was assessed with the Vancouver Scar Scale (VSS); hand function was evaluated by the Jebsen Test of Hand Function, and the completion time was recorded; and the activities of daily life (ADL) was measured by the modified Barthel Index. Sixteen weeks after treatment, the range of motion was measured with the Total Active Movement (TAM) method. Data were processed with t test and chi-square test. RESULTS The score of VSS in group SO was (12.2 ± 1.3) points before treatment and (6.7 ± 2.2) points 16 weeks after treatment, and the improvement score was (5.6 ± 1.8) points. The score of VSS in group CR was (12.0 ± 1.4) points before treatment and (7.0 ± 1.8) points 16 weeks after treatment, and the improvement score was (5.0 ± 1.0) points. There was no obvious difference in improvement score of VSS between the two groups (t = 1.452, P = 0.152). The ratio of excellent and good results according to TAM method in group SO was 75.9% (22/29) , while it was 37.9% (11/29) in group CR (t = 8.507, P = 0.004). The completion time for the Jebsen Test of group OS was (8.2 ± 1.6) min before treatment and (7.1 ± 1.4) min after treatment, and the improvement time was (1.2 ± 1.5) min. The completion time for the Jebsen Test of group CR was (9.0 ± 1.9) min before treatment and (6.3 ± 1.4) min 16 weeks after treatment, and the improvement time was (2.7 ± 2.7) min. There was a significant difference in improvement time for the Jebsen Test between the two groups (t = 2.618, P = 0.012). The score of ADL in group CR was (7.7 ± 1.4) points before treatment and (10.4 ± 1.4) points 16 weeks after treatment, and the improvement score was (2.7 ± 1.7) points. The score of ADL in group CR was (7.8 ± 1.4) points before treatment and (9.5 ± 1.4) points 16 weeks after treatment, and the improvement score was (1.7 ± 1.6) points. There was a significant difference in improvement score of ADL between the two groups (t = 2.246, P = 0.029). CONCLUSIONS Kinesitherapy in combination with self-made SO can improve the functional recovery of burned hand in children and prevent contractures in hand, and it is worth applying generally.
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Affiliation(s)
- Fang Lei
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
| | - Youling Tang
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
| | - Pei Chen
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
| | - Hao Luo
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
| | - Juan Wang
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
| | - Weiguo Xie
- Department of Burns, Wuhan City Hospital NO.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China.
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138
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Fang M, Lei F, Zhou J, Wu YN, Gong ZY. Rapid, simple and selective determination of 2,4-dinitrophenol by molecularly imprinted spin column extraction coupled with fluorescence detection. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.06.015] [Citation(s) in RCA: 12] [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: 11/17/2022]
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139
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Qi W, Zhou X, Shi W, Huang L, Xia W, Liu D, Li H, Chen S, Lei F, Cao L, Wu J, He F, Song W, Li Q, Li H, Liao M, Liu M. Genesis of the novel human-infecting influenza A(H10N8) virus and potential genetic diversity of the virus in poultry, China. Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.25.20841] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Human infection with a novel influenza A(H10N8) virus was first described in China in December 2013. However, the origin and genetic diversity of this virus is still poorly understood. We performed a phylogenetic analysis and coalescent analysis of two viruses from the first case of influenza A(H10N8) (A/Jiangxi-Donghu/346-1/2013 and A/Jiangxi-Donghu/346-2/2013 and a novel A(H10N8) virus (A/chicken/Jiangxi/102/2013) isolated from a live poultry market that the patient had visited. The haemagglutinin (HA), neuraminidase (NA), PA subunit of the virus polymerase complex, nucleoprotein (NP), M and nonstructural protein (NS) genes of the three virus strains shared the same genetic origins. The origins of their HA and NA genes were similar: originally from wild birds to ducks, and then to chickens. The PA, NP, M, and NS genes were similar to those of chicken influenza A(H9N2) viruses. Coalescent analyses showed that the reassortment of these genes from A(H9N2) to A(H10N8) might have occurred at least twice. However, the PB1 and PB2 genes of the chicken A(H10N8) virus most likely originated from H7-like viruses of ducks, while those of the viruses from the case most likely stemmed from A(H9N2) viruses circulating in chickens. The oseltamivir-resistance mutation, R292K (R291K in A(H10N8) numbering) in the NA protein, occurred after four days of oseltamivir treatment. It seems that A(H10N8) viruses might have become established among poultry and their genetic diversity might be much higher than what we have observed.
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Affiliation(s)
- W Qi
- National and Local Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- These authors contributed equally to this article
| | - X Zhou
- These authors contributed equally to this article
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - W Shi
- These authors contributed equally to this article
- School of Basic Medical Sciences, Taishan Medical College, Taian, Shandong, China
| | - L Huang
- National and Local Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - W Xia
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - D Liu
- Network Information Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - H Li
- National and Local Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - S Chen
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - F Lei
- CAS Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - L Cao
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China
| | - J Wu
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - F He
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - W Song
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - Q Li
- National and Local Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - H Li
- Nanchang Center for Disease Control and Prevention, Nanchang, China
| | - M Liao
- These authors contributed equally to this article
- National and Local Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - M Liu
- Nanchang Center for Disease Control and Prevention, Nanchang, China
- These authors contributed equally to this article
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140
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Lu N, Hu Y, Zhu L, Yang X, Yin Y, Lei F, Zhu Y, Du Q, Wang X, Meng Z, Zhu B. DNA microarray analysis reveals that antibiotic resistance-gene diversity in human gut microbiota is age related. Sci Rep 2014; 4:4302. [PMID: 24618772 PMCID: PMC3950639 DOI: 10.1038/srep04302] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 08/30/2013] [Accepted: 02/05/2014] [Indexed: 11/30/2022] Open
Abstract
The human gut is a reservoir for antibiotic resistance genes. In this report, we used a DNA microarray chip covering 369 resistance types to investigate the relationship between antibiotic resistance-gene diversity and human age. Metagenomic DNA from fecal samples from 124 healthy volunteers of four different age groups (pre-school-aged children (CH), school-aged children (SC), high school students (HSS) and adults (AD)) were hybridized to the microarray chip. The results showed that 80 different gene types were recovered from the gut microbiota of the 124 individuals: 25 from CH, 37 from SC, 58 from HSS and 72 from AD. Further analysis indicated that the antibiotic resistance genes in the CH, SC and AD groups clustered independently, whereas the gene types in the HSS group were more divergent. Our results indicated that antibiotic resistance genes in the human gut microbiota accumulate from childhood to adulthood and become more complex with age.
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Affiliation(s)
- Na Lu
- 1] CAS key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [2] Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [3]
| | - Yongfei Hu
- 1] CAS key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [2] Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [3]
| | - Liying Zhu
- 1] Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China [2]
| | - Xi Yang
- 1] CAS key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [2] Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
| | - Yeshi Yin
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Fang Lei
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, China
| | - Yongliang Zhu
- Dept. of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qin Du
- Dept. of Gastroenterology, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xin Wang
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zhiqi Meng
- Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Baoli Zhu
- 1] CAS key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China [2] Beijing Key Laboratory of Microbial Drug Resistance and Resistome, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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141
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Zhou Y, Yan B, Lei F. Postsynthetic lanthanide functionalization of nanosized metal–organic frameworks for highly sensitive ratiometric luminescent thermometry. Chem Commun (Camb) 2014; 50:15235-8. [DOI: 10.1039/c4cc07038k] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A facile and general approach was demonstrated to generate ratiometric luminescent nanothermometers through postsynthetic incorporation of lanthanide cations within nanosized metal–organic frameworks bearing the open bipyridine sites. The obtained nanothermometers exhibit ultrahigh sensitivities.
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Affiliation(s)
- You Zhou
- Department of Chemistry
- Tongji University
- Shanghai, China
| | - Bing Yan
- Department of Chemistry
- Tongji University
- Shanghai, China
| | - Fang Lei
- School of Materials Science and Engineering
- Shanghai University
- Shanghai 200072, China
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142
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143
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Zhang Q, Yan B, Lei F, Chen HH. Organic salt assisted colloidal synthesis and X-ray luminescence of (Tm, Tb, Eu)-doped LaOBr nanocrystals. Nanoscale 2012; 4:7646-7648. [PMID: 23128851 DOI: 10.1039/c2nr32780e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The solution-phase synthesis of high quality LaOBr nanocrystals has been realized by single source precursors under the assistance of an organic salt (TBAB) and characterized by XRD and TEM. The unique crystallization process of LaOBr NCs is demonstrated and dictated by the amidation reaction. The X-ray luminescence of (Tm, Tb, Eu)-doped LaOBr NCs has also been characterized.
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Affiliation(s)
- Qiang Zhang
- Department of Chemistry, Tongji University, Shanghai 200092, PR China
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144
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Cheng G, Hu Y, Yin Y, Yang X, Xiang C, Wang B, Chen Y, Yang F, Lei F, Wu N, Lu N, Li J, Chen Q, Li L, Zhu B. Functional screening of antibiotic resistance genes from human gut microbiota reveals a novel gene fusion. FEMS Microbiol Lett 2012; 336:11-6. [PMID: 22845886 DOI: 10.1111/j.1574-6968.2012.02647.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/18/2012] [Accepted: 07/26/2012] [Indexed: 12/13/2022] Open
Abstract
The human gut microbiota has a high density of bacteria that are considered a reservoir for antibiotic resistance genes (ARGs). In this study, one fosmid metagenomic library generated from the gut microbiota of four healthy humans was used to screen for ARGs against seven antibiotics. Eight new ARGs were obtained: one against amoxicillin, six against d-cycloserine, and one against kanamycin. The new amoxicillin resistance gene encodes a protein with 53% identity to a class D β-lactamase from Riemerella anatipestifer RA-GD. The six new d-cycloserine resistance genes encode proteins with 73-81% identity to known d-alanine-d-alanine ligases. The new kanamycin resistance gene encodes a protein of 274 amino acids with an N-terminus (amino acids 1-189) that has 42% identity to the 6'-aminoglycoside acetyltransferase [AAC(6')] from Enterococcus hirae and a C-terminus (amino acids 190-274) with 35% identity to a hypothetical protein from Clostridiales sp. SSC/2. A functional study on the novel kanamycin resistance gene showed that only the N-terminus conferred kanamycin resistance. Our results showed that functional metagenomics is a useful tool for the identification of new ARGs.
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Affiliation(s)
- Gong Cheng
- Microbial Genome Research Center, CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
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Amelie L, Dorothea A, Lei F, Michael D, Jochen L, Christian F. Tacrine-NO donor and tacrine-ferulic acid hybrid molecules as new anti-Alzheimer agents: hepatotoxicity and influence on the cytochrome P450 system in comparison to tacrine. ACTA ACUST UNITED AC 2011; 60:229-37. [DOI: 10.1055/s-0031-1296278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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146
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Tao X, Jing-bo P, Wen-tong Z, Xin Z, Tao-tao Z, Shi-jun Y, Lei F, Zhong-mei Z, Da-yong C. Antiatherogenic and Anti-Ischemic Properties of Traditional Chinese Medicine Xinkeshu via Endothelial Protecting Function. Evid Based Complement Alternat Med 2011; 2012:302137. [PMID: 22007259 PMCID: PMC3191825 DOI: 10.1155/2012/302137] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 08/08/2011] [Indexed: 01/28/2023]
Abstract
Including herbal medicine, complementary and alternative medicine (CAM) is popular worldwide. The traditional Chinese medicine xinkeshu has been widely used to treat coronary heart disease in China. This study was designed to investigate the protective effect and probable mechanism of xinkeshu tablet to atherosclerotic myocardial ischemia rabbit. Rabbits were divided into four groups (n = 12 each) and fed with different diet for 12 weeks: Control (standard diet), Model (high-cholesterol diet), XKS (high-cholesterol diet with 184.8 mg/kg/d xinkeshu), and Atorvastatin (high-cholesterol diet with 5.0 mg/kg/d atorvastatin). Plasma lipoprotein, ECG, endothelium-dependent vessel relaxation, histomorphological study, and expressions of eNOS and VCAM-1 on coronary arteries were assessed. The findings showed that, similar to atorvastatin, xinkeshu presented significant effects on rescuing endothelium-dependent vessel relaxation, inhibiting atherosclerotic progress, preventing myocardial ischemia, and changing eNOS and VCAM-1 expression. However, xinkeshu showed no lipoprotein lowering effect in hypercholesterolemia rabbits. The results of the present study indicated that xinkeshu exerted potent antiatherogenic and anti-ischemic properties on atherosclerotic myocardial ischemia rabbit. An endothelial protecting effect may be involved in the mechanism other than antihyperlipidemic effect.
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Affiliation(s)
- Xu Tao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
- Neurology Department, China Meitan General Hospital, Beijing 100028, China
| | - Peng Jing-bo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Zhang Wen-tong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
- Neurology Department, Beijing Huimin Hospital, Beijing 100054, China
| | - Zhao Xin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Zhang Tao-tao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Yang Shi-jun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Fang Lei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Zou Zhong-mei
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
| | - Cai Da-yong
- Institute of Medicinal Plant Development, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100193, China
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147
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Lei F, Tang YL, Xie WG, Zhang Y, Zhang WD, Huang WW. [Treatment of facial pigmentation after burns with traditional Chinese medicine mask and skin care]. Zhonghua Shao Shang Za Zhi 2010; 26:420-424. [PMID: 21223651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To observe the effects of traditional Chinese medicine mask combined with skin care in the treatment of facial pigmentation after burns. METHODS Forty-one patients with facial pigmentation after burns hospitalized from January 2009 to June 2010 were enrolled and divided into treatment group (n = 26, odd number) and control group (n = 15, even number) according to the visiting order. After cleaning, massaging, and steam spraying to faces, patients in treatment and control groups were respectively treated with traditional Chinese medicine mask developed by physicians in our hospital and common commercial beauty mask. Masks were removed when they became completely dry. The treatment was repeated every other day. Ten times made up a course of treatment. Three consecutive courses were carried out on each patient. Before treatment and at the end of each course, the skin color differences were measured with Vancouver Pigmented Scar Scale; image gray scale value of pigmented skin was measured with image analysis technique. Satisfaction degree acknowledged by both patients and physicians were recorded at the end of each course; adverse effects were recorded; and the overall efficacy between two groups was compared. Data were processed with chi-square test or t test. RESULTS Skin color differences, image gray scale value of patients in treatment group were close to those in control group before treatment (with t value respectively 0.800 and 0.694, P values all above 0.05). Skin color differences, image gray scale value, and satisfaction degree acknowledged by both patients and physicians in treatment group were better than those in control group at the end of each course. At the end of the third course of treatment, the skin color differences in treatment and control groups scored 0.5 ± 0.4 and 1.1 ± 0.6, respectively, with image gray scale value of 55 ± 5 and 66 ± 6, respectively, which were statistically different from each other (with t value respectively 3.389 and 5.102, P values all below 0.01). The overall efficacy of the treatment group was 92.3%, which was much better than that of the control group (53.3%, χ(2) = 6.31, P < 0.05). No allergy caused by the traditional Chinese medicine mask was observed during the treatment. CONCLUSIONS The traditional Chinese medicine mask combined with skin care is effective for the treatment of facial pigmentation after burns.
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Affiliation(s)
- Fang Lei
- Institute of Burns, Wuhan City Hospital No.3 & Tongren Hospital of Wuhan University, Wuhan 430060, China
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148
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Hu Y, Fu C, Yin Y, Cheng G, Lei F, Yang X, Li J, Ashforth EJ, Zhang L, Zhu B. Construction and preliminary analysis of a deep-sea sediment metagenomic fosmid library from Qiongdongnan Basin, South China Sea. Mar Biotechnol (NY) 2010; 12:719-727. [PMID: 20514504 DOI: 10.1007/s10126-010-9259-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Accepted: 01/19/2010] [Indexed: 05/29/2023]
Abstract
Preliminary characterization of the microbial phylogeny and metabolic potential of a deep-sea sediment sample from the Qiongdongnan Basin, South China Sea, was carried out using a metagenomic library approach. An effective and rapid method of DNA isolation, purification, and library construction was used resulting in approximately 200,000 clones with an average insert size of about 36 kb. End sequencing of 600 individual clones from the fosmid library generated 1,051 sequences with an average sequence length of 619 bp. Phylogenetic ascription indicated that this library was dominated by Bacteria, predominantly Proteobacteria, though Planctomycetes were also relatively abundant. Sulfate-reducing and anaerobic ammonium-oxidizing bacteria, which play important roles in the cycling of sedimentary nutrients, were abundant in the library. Cluster of orthologous groups category analysis showed that most of the genes contained in the end sequences were related to metabolism, and with cellular processes and signaling. Functional groups assigned by SEED (subsystems-based annotations) highlighted the existence of 'one-carbon' metabolism within this community as well as identifying functional genes involved in methanogenesis. Furthermore, diverse genes involved in the biodegradation of xenobiotics were found using Kyoto Encyclopedia of Genes and Genomes metabolic pathway analysis.
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Affiliation(s)
- Yongfei Hu
- Institute of Microbiology, Chinese Academy of Sciences, No.1 West Beichen Road, Chaoyang District, Beijing 100101, People's Republic of China
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Hu Y, Fu C, Huang Y, Yin Y, Cheng G, Lei F, Lu N, Li J, Ashforth EJ, Zhang L, Zhu B. Novel lipolytic genes from the microbial metagenomic library of the South China Sea marine sediment. FEMS Microbiol Ecol 2010; 72:228-37. [DOI: 10.1111/j.1574-6941.2010.00851.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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150
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Peiling L, Meimei L, Lei F. P544 Combined effects of TRAIL and paclitaxel in growth and apoptosis of human ovarian carcinoma cell line SKOV3 and its effect on the expression of Bcl-2/Bax. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62034-8] [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: 10/20/2022]
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