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Tao J, Li Z, Chen C, Liang R, Wu S, Lin F, Cheng Z, Yan B, Chen G. Intelligent technologies powering clean incineration of municipal solid waste: A system review. Sci Total Environ 2024:173082. [PMID: 38740220 DOI: 10.1016/j.scitotenv.2024.173082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/01/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
Cleanliness has been paramount for municipal solid waste incineration (MSWI) systems. In recent years, the rapid advancement of intelligent technologies has fostered unprecedented opportunities for enhancing the cleanliness of MSWI systems. This paper offers a review and analysis of cutting-edge intelligent technologies in MSWI, which include process monitoring, intelligent algorithms, combustion control, flue gas treatment, and particulate control. The objective is to summarize current applications of these techniques and to forecast future directions. Regarding process monitoring, intelligent image analysis has facilitated real-time tracking of combustion conditions. For intelligent algorithms, machine learning models have shown advantages in accurately forecasting key process parameters and pollutant concentrations. In terms of combustion control, intelligent systems have achieved consistent prediction and regulation of temperature, oxygen content, and other parameters. Intelligent monitoring and forecasting of carbon monoxide and dioxins for flue gas treatment have exhibited satisfactory performance. Concerning particulate control, multi-objective optimization facilitates the sustainable utilization of fly ash. Despite remarkable progress, challenges remain in improving process stability and monitoring instrumentation of intelligent MSWI technologies. By systematically summarizing current applications, this timely review offers valuable insights into the future upgrade of intelligent MSWI systems.
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Affiliation(s)
- Junyu Tao
- Interdisciplinary Innovation Lab for Environment & Energy, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China
| | - Zaixin Li
- Interdisciplinary Innovation Lab for Environment & Energy, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China
| | - Chao Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Rui Liang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Shuang Wu
- Interdisciplinary Innovation Lab for Environment & Energy, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Zhanjun Cheng
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Lab of Biomass Wastes Utilization, Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin 300072, China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China; Tianjin Key Lab of Biomass Wastes Utilization, Tianjin Engineering Research Center of Bio Gas/Oil Technology, Tianjin 300072, China
| | - Guanyi Chen
- Interdisciplinary Innovation Lab for Environment & Energy, School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, China; School of Ecology and Environment, Tibet University, Lhasa 850012, China.
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Zhou Y, Lin F, Ling Z, Zhan M, Zhang G, Yuan D. Comparative study by microwave pyrolysis and conventional pyrolysis of pharmaceutical sludge: Resourceful disposal and antibiotic adsorption. J Hazard Mater 2024; 468:133867. [PMID: 38402683 DOI: 10.1016/j.jhazmat.2024.133867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/17/2024] [Accepted: 02/21/2024] [Indexed: 02/27/2024]
Abstract
Compared with conventional pyrolysis, microwave pyrolysis has superior heat transfer performance and promotes the decomposition of organic matter. The paper focuses on the harmless treatment and resource utilization of pharmaceutical sludge (PS) by microwave heating and conventional heating methods. The experimental results showed that the conventional pyrolysis gas is dominated by CO2, CO and H2. For microwave pyrolysis gas, the "microwave effect" promoted secondary cracking of volatile fractions and increases the content of CH4, CxHy, H2 and CO through condensation, aromatization, and dehydrogenation. Conventional pyrolysis oils contained the highest percentage of oxygenated compounds. However, high-temperature microwave radiation accelerated the cleavage of polar oxygenated molecular bonds and long-chain hydrocarbons, thereby increasing the aromatics content of pyrolysis oils. The solid residues obtained from microwave pyrolysis is highly graphitized and porous, with a surface area of 146.2 m2/g. Furthermore, the solid residue was rich in pyridine-N and pyrrole-N that could be utilized for adsorption and catalysis. The MA-600 removes up to 99% of tetracycline (TC) in 6 h. It was also found that the adsorption process of TC by the two pyrolysis residues was consistent with the proposed secondary and Freundlich models.
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Affiliation(s)
- Yifan Zhou
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
| | - Fawei Lin
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China; School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, China.
| | - Zhongqian Ling
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
| | - Mingxiu Zhan
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
| | - Guangxue Zhang
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China
| | - Dingkun Yuan
- College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou 310018, China; School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, China.
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Short RT, Lin F, Nair S, Terry JG, Carr JJ, Kandula NR, Lloyd-Jones D, Kanaya AM. Comparing coronary artery cross-sectional area among asymptomatic South Asian, White, and Black participants: the MASALA and CARDIA studies. BMC Cardiovasc Disord 2024; 24:158. [PMID: 38486153 PMCID: PMC10938784 DOI: 10.1186/s12872-024-03811-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/22/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND South Asian individuals have high risk of atherosclerotic cardiovascular disease (ASCVD). Some investigators suggest smaller coronary artery size may be partially responsible. METHODS We compared the left anterior descending (LAD) artery cross-sectional area (CSA) (lumen and arterial wall) among South Asians in the Mediators of Atherosclerosis in South Asians Living in America (MASALA) study with White and Black participants in the Coronary Artery Risk Development in Young Adults (CARDIA) study, adjusting for BMI, height, and other ASCVD risk factors. We used thin-slice non-contrast cardiac computed tomography to measure LAD CSA. We used linear regression models to determine whether race/ethnicity was associated with LAD CSA after adjusting for demographic factors, BMI, height, coronary artery calcium (CAC), and traditional cardiovascular risk factors. RESULTS Our sample included 3,353 participants: 513 self-identified as South Asian (44.4% women), 1286 as Black (59.6% women), and 1554 as White (53.5% women). After adjusting for age, BMI, height, there was no difference in LAD CSA between South Asian men and women compared to White men and women, respectively. After full adjustment for CVD risk factors, LAD CSA values were: South Asian women (19.9 mm2, 95% CI [18.8 - 20.9]) and men (22.3 mm2, 95% CI [21.4 - 23.2]; White women (20.0 mm2, 95% CI [19.4-20.5]) and men (23.6 mm2, 95% CI [23.0-24.2]); and Black women (21.6 mm2, 95% CI [21.0 - 22.2]) and men (26.0 mm2, 95% CI [25.3 - 26.7]). Height, BMI, hypertension, CAC, and age were positively associated with LAD CSA; current and former cigarette use were inversely associated. CONCLUSIONS South Asian men and women have similar LAD CSA to White men and women, and smaller LAD CSA compared to Black men and women, respectively, after accounting for differences in body size. Future studies should determine whether LAD CSA is associated with future ASCVD events.
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Grants
- R01 HL093009 NHLBI NIH HHS
- UL1 RR024131 NCRR NIH HHS
- K24 HL112827 NHLBI NIH HHS
- P30 DK098722 NIDDK NIH HHS
- P30 DK092924 NIDDK NIH HHS
- 2R01HL093009, UL1TR001872, 5K24HL112827, HHSN268201800005I, HHSN268201800007I, HHSN268201800003I, HHSN268201800006I, HHSN268201800004I, R01-HL098445 NHLBI NIH HHS
- National Heart, Lung, and Blood Institute
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Affiliation(s)
- R T Short
- University of California San Francisco, San Francisco, USA.
| | - F Lin
- University of California San Francisco, San Francisco, USA
| | - S Nair
- Vanderbilt University Medical Center, Nashville, USA
| | - J G Terry
- Vanderbilt University Medical Center, Nashville, USA
| | - J J Carr
- Vanderbilt University Medical Center, Nashville, USA
| | | | | | - A M Kanaya
- University of California San Francisco, San Francisco, USA
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Lin F, Guo YQ, Wu YL, Li KM, Zheng YM, Wang LP. [Progress in research of rash and fever syndrome surveillance and early warning]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:455-463. [PMID: 38514324 DOI: 10.3760/cma.j.cn112338-20230724-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Objective: To introduce the progress in research of rash and fever syndrome (RFS) surveillance and early warning both at home and abroad, and provide reference for surveillance and prevention of RFS in China. Methods: The keywords "fever" "rash" and "surveillance" and others were used for a literature retrieval by using China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform, PubMed and Web of Science. The languages of literatures were limited in Chinese and English. The key information of the literatures were collected and analyzed with Excel. Results: A total of 36 study papers (21 in Chinese and 15 in English) were included. The studies mainly focused on the pathogen surveillance of RFS (n=19). The pathogens included measles virus, varicella-zoster virus, rubella virus, enterovirus, human B19 virus, dengue virus, streptococcus group A, Salmonella typhi and Salmonella paratyphoid,human herpesvirus, mumps virus and adenovirus. Eight studies were about the surveillance in major events, such as sport game, World Expo and religious gathering, or sudden natural disasters, such as earthquake and tropical storm, during 2010-2015. Eight studies focused on case or epidemic surveillance, most of which were studies from other counties. The surveillance sites were medical institutions. RFS was diagnosed according to the International Classification of Diseases, 9th (ICD-9) and symptoms descripted in chief-complaint. Only one study in Mongolia conducted RFS epidemic prediction. The analysis methods of 36 papers included simple descriptive analysis, time-based early warning models (such as regression analysis, fixed threshold method, Hugh Hart control chart method and cumulative sum control chart method) and time series analysis method. Conclusions: In the future, RFS surveillance system should cover both known pathogens and emerging pathogens. Automatic surveillance using information capture and intelligent modelling can be applied to improve the sensitivity and specificity of RFS surveillance and early warning.
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Affiliation(s)
- F Lin
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Q Guo
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y L Wu
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - K M Li
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y M Zheng
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L P Wang
- Division of Infectious Disease/National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Lin F, Zhao J, Lu YX, Zou JZ, Xiao P, Liang JQ, Pang C, Gu QL. [Analysis of clinical characteristics of children with adenoid hypertrophy and pharyngolaryngeal reflux]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:140-146. [PMID: 38369792 DOI: 10.3760/cma.j.cn115330-20231221-00318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Objectives: To explore the clinical characteristics of children with adenoid hypertrophy (AH) and laryngopharyngeal reflux (LPR) by detecting the expression of pepsin in adenoids as a standard for AH with LPR. Methods: A total of 190 children who were admitted for surgical treatment due to AH were included in the study. The main clinical symptoms of the patients were recorded, and the degree of adenoid hypertrophy was evaluated. Before the surgery, Reflux Symptom Index (RSI) and Reflux Finding Score (RFS) were used to evaluate the reflux symptoms. After the surgery, pepsin immunohistochemical staining was performed on the adenoid tissue, and according to the staining results, the patients were divided into study group (pepsin staining positive) and control group (pepsin staining negative). SPSS 19.0 software was used for statistical analysis. Quantitative data conforming to normal distribution between the two groups were tested by two-independent sample t test, and quantitative data with skewed distribution were tested by Mann-Whitney U test. Results: The positive rate of pepsin staining in the 190 AH patients was 78.4% (149/190). The study group had higher levels of preoperative symptoms such as erythema and/or congestion of the pharynx(2.1±0.7 vs. 1.8±0.6,t=2.23), vocal cord edema[1.0(0, 1.0) vs. 1.0(0, 1.0), Z=2.00], diffuse laryngeal edema[0(0, 1.0) vs. 0(0, 0), Z=2.48], posterior commissure hypertrophy[(1.4±0.6 vs. 1.1±0.5), t=2.63], and a higher total score on the RFS scale than the control group(6.2±2.7 vs. 5.0±2.6, t=2.47), with statistical differences (P<0.05). The sensitivity and specificity of RFS score in diagnosing AH with LPR were 24.8% and 80.5%, respectively. When RFS>5 was used as the positive threshold, the sensitivity and specificity of RFS score in diagnosing AH with LPR were 61.1% and 58.5%, respectively. There was a statistical difference in the number of positive cases of RFS score between the study group and the control group(91 vs. 17,χ2=5.04,P=0.032). Conclusions: LPR is common in AH children. Children with AH and LPR have specific performance in electronic laryngoscopy, such as erythema with edema in the pharynx, posterior commissure hypertrophy, and vocal cord edema.
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Affiliation(s)
- F Lin
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
| | - J Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
| | - Y X Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
| | - J Z Zou
- Department of Pathology, Children's Hospital Capital Institute of Pediatrics,Beijing 100020,China
| | - P Xiao
- Department of Pathology, Children's Hospital Capital Institute of Pediatrics,Beijing 100020,China
| | - J Q Liang
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
| | - C Pang
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
| | - Q L Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital, Capital Institute of Pediatrics,Beijing 100020,China
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Lin F, Sun H, Chen Y, Zhang YY, Liu J, He Y, Zheng FM, Xu ZL, Wang FR, Kong J, Wang ZD, Wan YY, Mo XD, Wang Y, Cheng YF, Zhang XH, Huang XJ, Xu LP. [Impact of SARS-CoV-2 infection on graft composition and early transplant outcomes following allogeneic hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:890-899. [PMID: 38185517 PMCID: PMC10753252 DOI: 10.3760/cma.j.issn.0253-2727.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Indexed: 01/09/2024]
Abstract
Objective: To assess the feasibility of using donors with novel coronavirus disease 2019 (COVID-19) for allogeneic hematopoietic stem cell transplantation (allo-HSCT) when there are no other available donors and allo-HSCT cannot be delayed or discontinued. Methods: Seventy-one patients with malignant hematological diseases undergoing allo-HSCT between December 8, 2022, and January 10, 2023, were included. Of these, 16 received grafts from donors with mild COVID-19 (D-COVID(+) group) and 55 received grafts from donors without COVID-19 (D-COVID(-) group). The graft compositions were compared between the two groups. Engraftment, acute graft-versus-host disease (aGVHD), overall survival (OS), and relapse were also evaluated. Results: There were no serious side effects or adverse events in the D-COVID(+) group. The mononuclear cell dose and CD34(+) cell dose were comparable between the two groups, and no additional apheresis was required. There were no significant differences in the lymphocyte, monocyte, and T-cell subset doses between the two groups. The median natural killer cell dose in the D-COVID(+) group was significantly higher than that in the D-COVID(-) group (0.69×10(8)/kg vs. 0.53×10(8)/kg, P=0.031). The median follow-up time was 72 (33-104) days. All patients achieved primary engraftment. The 60-day platelet engraftment rates in the D-COVID(+) and D-COVID(-) groups were 100% and (96.4±0.2) %, respectively (P=0.568). There were no significant differences in neutrophil (P=0.309) and platelet (P=0.544) engraftment times. The cumulative incidence of grade 2-4 aGVHD was (37.5±1.6) % vs. (16.4±0.3) % (P=0.062), and of grade 3-4 aGVHD was 25.0% ±1.3% vs. 9.1% ±0.2% (P=0.095) in the D-COVID(+) and D-COVID(-) groups, respectively. The probabilities of 60-day OS were 100% and 98.1% ±1.8% (P=0.522) in the D-COVID(+) and D-COVID(-) groups, respectively. There was no relapse of primary disease during the study period. Conclusion: When allo-HSCT cannot be delayed or discontinued and no other donor is available, a donor with mild COVID-19 should be considered if tolerable. Larger sample sizes and longer follow-up periods are required to validate these results.
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Affiliation(s)
- F Lin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - H Sun
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Y Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - J Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y He
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - F M Zheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Z L Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - F R Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - J Kong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Z D Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Y Wan
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X D Mo
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - Y F Cheng
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - X J Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
| | - L P Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Key Laboratory of Hematopoietic Stem Cell Transplantation for the Treatment of Hematological Diseases, Beijing 100044, China
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Huang Y, Lin F, Hao CY, Liang JL, Zhou DP, Wang HY. [Effects of modified proper digital artery island flap in repairing complex fingertip defects]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:947-952. [PMID: 37899560 DOI: 10.3760/cma.j.cn501225-20230109-00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Objective: To investigate the surgical method and clinical effects of the modified proper digital artery island flap in repairing complex fingertip defects. Methods: A retrospective observational study was conducted. From January 2017 to December 2021, 15 patients (15 fingers) with complex fingertip defects, involving the pulp, nail bed, and lateral wall of the nail, who met the inclusion criteria were admitted into General Hospital of Northern Theater Command, including 11 males and 4 females, aged from 18 to 55 years. The area of the post debridement wound was from 2.5 cm×2.0 cm to 3.5 cm×3.5 cm, and all the wounds were repaired by using modified proper digital artery island flap (including 3 parts: main flap, tongue-shaped flap, and triangular flap), of which the main flap was used to cover the finger pulp defect, the tongue-shaped flap was used to cover the nail bed and the nail lateral wall defect, and the triangular flap was inserted into the edge of the finger pulp wound to cover the vessel pedicle. The range of the flap ranged from 3.0 cm×2.0 cm to 4.5 cm×3.0 cm. The wound at the donor site was repaired with full-thickness skin graft of the groin, and the donor site of the skin graft was sutured directly. After operation, the survival of the flap and skin graft as well as and the appearance of the affected finger were observed. During the follow-up, the fingertip morphology of the affected finger was observed, two-point discrimination distance of the affected finger pulp was measured, and the patients' satisfaction with the efficacy (including very satisfied, satisfied, and dissatisfied) was asked, and the affected finger function was evaluated by the total active movement (TAM) system evaluation standard recommended by American Academy for Surgery of Hand. Results: After operation, the main flaps and skin grafts in 15 patients all survived; but the incision at the edge of tongue-shaped flap in one patient healed poorly, and one patient developed venous stasis at the distal end of the tongue-shaped flap; the triangular flap at the pedicle was slightly bloated in the early postoperative period and became smooth after 2 to 3 months. Overall, two patients developed subcutaneous hematoma in their flaps. All the complications were healed by appropriate dressing change, suture removal, or compression bandaging. After operation, the appearance of the flap was full and formed a prominent fingertip shape. During the follow-up of 6 months to 5 years, the fingertips of the affected fingers were prominent and full; the two-point discrimination distance of the affected finger pulp was (8.6±1.4) mm; 8 patients were very satisfied with the efficacy, 6 patients were satisfied, and one patient was dissatisfied; the functional assessment of the affected fingers were all excellent. Conclusions: The modified proper digital artery island flap can repair complex fingertip defects involving the pulp, nail bed, and lateral wall of the nail. The operation is simple, and the shape and function of the fingertip are good after surgery.
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Affiliation(s)
- Y Huang
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - F Lin
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - C Y Hao
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - J L Liang
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - D P Zhou
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H Y Wang
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
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Hsieh YH, Medland J, Lin F, Dhillon R, Min P, Zhang Y, Ng S. Diversity of the free helical rim flap: A case series tailoring the microsurgical technique to esthetically optimize full-thickness nasal defect reconstructions. J Plast Reconstr Aesthet Surg 2023; 84:341-349. [PMID: 37390543 DOI: 10.1016/j.bjps.2023.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/30/2023] [Accepted: 06/03/2023] [Indexed: 07/02/2023]
Abstract
INTRODUCTION The free helical rim (FHR) flap offers like-with-like reconstruction for full-thickness nasal defects. A case series of nasal reconstruction using an FHR flap was presented, detailing surgical steps and refinements, as well as functional and esthetic outcomes. METHODS AND MATERIALS This is a retrospective cohort study of composite nasal defect reconstruction with FHR flap from August 2018 to March 2020. Descriptive data were analyzed by SPSS software. RESULTS Six cases were recruited, four were unilateral alar defects, one was hemi-nose, and one was ala plus tip. The average size of the defect was 2.5 × 2.8 cm2. Three FHR flaps were designed with retrograde pedicles and three with anterograde pedicles. The facial artery and veins were the recipient vessels in all cases. Vascular grafts were used in all six cases. Descending branch of the lateral circumflex femoral (DLCxF) artery and vein functioned as interposition vascular conduits in five cases. Superficial forearm vein grafts were used in one case. One patient needed flap re-exploration due to venous congestion. One patient had partial flap necrosis due to delayed infection, and one developed delayed wound dehiscence in the irradiated wound. The average follow-up was 18 months. CONCLUSION The FHR flap has consistent vascular anatomy. It can be raised as an anterograde or retrograde flap for a contralateral or ipsilateral inset. FHR flap can be used in extensive composite nasal defects. This case series demonstrates that interposition vascular grafts are invariably needed and the possibility of using forearm vessels as grafts instead of DLCxF artery and vein.
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Affiliation(s)
- Y H Hsieh
- Department of Plastic and Reconstructive Surgery, Eastern Health, 5 Arnold St, Box Hill, Victoria 3128, Australia
| | - J Medland
- Department of Plastic and Reconstructive Surgery, Eastern Health, 5 Arnold St, Box Hill, Victoria 3128, Australia
| | - F Lin
- Department of Plastic and Reconstructive Surgery, Eastern Health, 5 Arnold St, Box Hill, Victoria 3128, Australia
| | - R Dhillon
- Department of Plastic and Reconstructive Surgery, Eastern Health, 5 Arnold St, Box Hill, Victoria 3128, Australia; Department of Plastic and Reconstructive Surgery, Austin Health, 145 Studley Road, Heidelberg, Victoria 3084, Australia
| | - P Min
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, 569 Zhizaoju Road, Shanghai 200023, China
| | - Y Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, 569 Zhizaoju Road, Shanghai 200023, China
| | - S Ng
- Department of Plastic and Reconstructive Surgery, Eastern Health, 5 Arnold St, Box Hill, Victoria 3128, Australia; Department of Plastic and Reconstructive Surgery, Austin Health, 145 Studley Road, Heidelberg, Victoria 3084, Australia.
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9
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Deng Y, Ren X, Guo YQ, Geng MJ, Zhang CH, Huang S, Lin F, Wang LP. [The correlations between influenza and meteorological factors in 15 cities of northern China, 2008-2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:765-771. [PMID: 37221065 DOI: 10.3760/cma.j.cn112338-20221007-00862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Objective: To understand the influence of meteorological factors on the morbidity of influenza in northern cities of China and explore the differences in the influence of meteorological factors on the morbidity of influenza in 15 cities. Methods: The monthly reported morbidity of influenza and monthly meteorological data from 2008 to 2020 were collected in 15 provincial capital cities, including Xi 'an, Lanzhou, Xining, Yinchuan and Urumqi (5 northwestern cities), Beijing, Tianjin, Shijiazhuang, Taiyuan, Hohhot, Ji'nan, Zhengzhou (7 northern cities), Shenyang, Changchun and Harbin (3 northeastern cities). The panel data regression model was applied to conduct quantitative analyze on the influence of meteorological factors on influenza morbidity. Results: The univariate and multivariate panel regression analysis showed that after controlling the population density and other meteorological factors, for each 5 ℃ drop of monthly average temperature, the morbidity change percentage (MCP) of influenza was 11.35%, 34.04% and 25.04% in the 3 northeastern cities, 7 northern cities and 5 northwestern cities, respectively, and the best lag period months was 1, 0 and 1 month; When the monthly average relative humidity decreased by 10%, the MCP was 15.84% in 3 cities in northeastern China and 14.80% in 7 cities in northern China respectively, and the best lag period months was 2 and 1 months respectively; The MCP of 5 cities in northwestern China was 4.50% for each 10 mm reduction of monthly accumulated precipitation, and the best lag period months was 1 month; The MCPs of 3 cities in northeastern China and 5 cities in northwestern China were 4.19% and 5.97% respectively when the accumulated sunshine duration of each month decreased by 10 hours, the best lag period months was 1 month. Conclusions: In northern cities of China from 2008 to 2020, the temperature, relative humidity, precipitation and sunshine duration all had negatively impact on the morbidity of influenza, and temperature and relative humidity were the main sensitive meteorological factors. Temperature had a strong direct impact on the morbidity of influenza in 7 cities in northern China, and relative humidity had a strong lag effect on the morbidity of influenza in 3 cities in northeastern China. The duration of sunshine in 5 cities in northwestern China had a greater impact on the morbidity of influenza compared with 3 cities in northeastern China.
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Affiliation(s)
- Y Deng
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Ren
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Q Guo
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Geng
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - C H Zhang
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Huang
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - F Lin
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L P Wang
- Division of Infectious Disease/Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Li J, Lin F, Yu H, Tong X, Cheng Z, Yan B, Song Y, Chen G, Hou L, Crittenden JC. Biochar-Assisted Catalytic Pyrolysis of Oily Sludge to Attain Harmless Disposal and Residue Utilization for Soil Reclamation. Environ Sci Technol 2023; 57:7063-7073. [PMID: 37018050 DOI: 10.1021/acs.est.2c09099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Pyrolysis of oily sludge (OS) is a feasible technology to match the principle of reduction and recycling; however, it is difficult to confirm the feasible environmental destination and meet the corresponding requirements. Therefore, an integrated strategy of biochar-assisted catalytic pyrolysis (BCP) of OS and residue utilization for soil reclamation is investigated in this study. During the catalytic pyrolysis process, biochar as a catalyst intensifies the removal of recalcitrant petroleum hydrocarbons at the expense of liquid product yield. Concurrently, biochar as an adsorbent can inhibit the release of micromolecular gaseous pollutants (e.g. HCN, H2S, and HCl) and stabilize heavy metals. Due to the assistance of biochar, pyrolysis reactions of OS are more likely to occur and require a lower temperature to achieve the same situation. During the soil reclamation process, the obtained residue as a soil amendment can not only provide a carbon source and mineral nutrients but can also improve the abundance and diversity of microbial communities. Thus, it facilitates the plant germination and the secondary removal of petroleum hydrocarbons. The integrated strategy of BCP of OS and residue utilization for soil reclamation is a promising management strategy, which is expected to realize the coordinated and benign disposal of more than one waste.
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Affiliation(s)
- Jiantao Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Hongdi Yu
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Xin Tong
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Zhanjun Cheng
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Yingjin Song
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, P. R. China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, P. R. China
| | - Li'an Hou
- Xi'an High-Tech Institute, Xi'an 710025, P. R. China
| | - John C Crittenden
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Liu C, Mei J, Lin F, Lin Y, Chen Y, Liu L. 130TiP Adjuvant osimertinib in patients with completely resected, stage IB-IIIB non-small cell lung cancer with uncommon EGFR mutations: A phase II, open-label, single arm, multicenter, exploratory study. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00385-4] [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: 04/03/2023]
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12
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Huang S, Lin SS, Zhang CH, Geng MJ, Lin F, Guo YQ, Deng Y, Zheng JD, Wang LP. [Assessment of intensity of seasonal influenza activity in Beijing-Tianjin-Hebei region, 2019-2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:438-444. [PMID: 36942339 DOI: 10.3760/cma.j.cn112338-20220909-00773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To explore the feasibility of moving epidemic method (MEM) in the assessment of seasonal influenza (influenza) activity intensity from the perspective of urban agglomeration, assess influenza activity intensity in the Beijing-Tianjin-Hebei region from 2019 to 2021 and evaluate the reliability of surveillance data and the effectiveness of the MEM model application. Methods: The weekly reported incidence rate (IR) of influenza and the percentage of influenza-like illness (ILI%) from 2011-2021 in Beijing-Tianjin-Hebei region were collected to establish MEM models respectively. The model fitting effect and the reliability of the two data were evaluated for the purpose of establishing an optimal model to assess the influenza activity intensity in Beijing-Tianjin-Hebei region from 2019-2021. A cross-validation procedure was used to evaluate the performance of the models by calculating the Youden's index, sensitivity and specificity. Results: The MEM model fitted with weekly ILI% had a higher Youden's index compared with the model fitted with weekly IR at both Beijing-Tianjin-Hebei region level and provincial level. The MEM model based on ILI% showed that the epidemic threshold in Beijing-Tianjin-Hebei region during 2019-2020 was 4.42%, the post-epidemic threshold was 4.66%, with medium, high and very high intensity thresholds as 5.38%, 7.22% and 7.84%, respectively. The influenza season during 2019-2020 had 10 weeks (week 50 of 2019 to week 7 of 2020). The influenza season started in week 50 of 2019, and the intensity fluctuated above and below medium epidemic level for six consecutive weeks. The high intensity was observed in week 4 of 2020, the threshold of very high intensity was excessed in week 5, and the intensity gradually declined and became lower than the threshold at the end of the influenza season in week 8. The epidemic threshold was 4.29% and the post-epidemic threshold was 4.35% during 2020-2021. Influenza activity level never excessed the epidemic threshold throughout the year, and no epidemic period emerged. Conclusions: The MEM model could be applied in the assessment of influenza activity intensity in Beijing-Tianjin-Hebei region, and the use of ILI% to assess influenza activity intensity in this region was more reliable than IR data. Influenza activity intensity in Beijing-Tianjin-Hebei region was higher during 2019-2020 but significantly lower in 2020-2021.
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Affiliation(s)
- S Huang
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S S Lin
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China Institute of Microbiology and Epidemiology, Academy of Military Medical Science, Beijing 100071, China
| | - C H Zhang
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Geng
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - F Lin
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Q Guo
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Deng
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J D Zheng
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L P Wang
- Division of Infectious Disease, Key Laboratory of Surveillance and Early Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Yu W, Lin F, Lin L. Bioturbation in sediment cores from the Clarion-Clipperton Zone in the northeast Pacific: Evidence from excess 210Pb. Mar Pollut Bull 2023; 188:114635. [PMID: 36739711 DOI: 10.1016/j.marpolbul.2023.114635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 01/08/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Radioactivity levels of 210Pb and 226Ra were measured to evaluate the bioturbation coefficients and mixing depths in one sediment core collected from the polymetallic nodule area inside the Clarion-Clipperton Zone (CCZ), a contract area of the China Ocean Mineral Resources Association (COMR) in the eastern Pacific Ocean. With a steady-state diffusion mode, the bioturbation coefficient and mixing depth of the sediment core were estimated to be 81.5 cm2/a and 51.3 cm, respectively, higher than that of the sediment core from the previous results from abyssal or global areas, which may be attributed to the distribution of total organic carbon (TOC) abundance. In addition, the transport flux of TOC from the surface layer to the deep layer were evaluated to be 1.15 mmol/(cm2·a), resulting in 83,200 tons of carbon buried annually into the sediment in the CCZ, indicating that a potential carbon sink will be disturbed with future exploration.
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Affiliation(s)
- W Yu
- School of National Safety and Emergency Management, Beijing Normal University, Zhuhai 519087, PR China
| | - F Lin
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, PR China.
| | - L Lin
- Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, PR China
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14
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Luo X, Jiang H, Liu XJ, Zhang Z, Deng K, Lin F, Jiang J, Wang YL, Yu J. Base MRI Imaging Characteristics of Meningioma Patients to Discuss the WHO Classification of Brain Invasion Otherwise Benign Meningiomas. Technol Cancer Res Treat 2023; 22:15330338231171470. [PMID: 37264676 DOI: 10.1177/15330338231171470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
PURPOSE Compared and analyzed the MRI imaging features of brain invasion otherwise benign (BIOB) meningiomas and WHO grade 1, grade 2 meningiomas, discussed the WHO grading of BIOB from the perspective of imaging. MATERIALS AND METHODS A retrospective analysis was performed on 675 meningiomas patients who carried on MRI examination from January 2006 to February 2022. Setting the 2022 Central nervous system (CNS) WHO Guidelines as the gold standard for pathological diagnosis. Statistical analysis of age, gender, and MRI features of meningiomas in relation to WHO grade and brain invasion. RESULTS Among 675 cases meningiomas, 543 (80.4%) were WHO grade 1, 123 (18.2%) were WHO grade 2, and 9 (1.3%) were WHO grade 3. There were 108 cases meningiomas with brain invasion (BI) (16.0%) and 567 cases without BI (84.0%). Among BI cases, 67 cases were BIOB. Compared the MRI features between BIOB and WHO grade 1 meningiomas, multivariate analysis demonstrated that the most strongly factors associated with distinguish them were enhancement degree, peritumoral edema, tumor-brain interface, fingerlike protrusion, mushroom sign, and bone invasion (AUC: 0.925 (0.901∼0.945), sensitivity: 0.925, specificity: 0.801). Compared the MRI features between BIOB and WHO grade 2 meningiomas, multivariate analysis demonstrated that the most strongly factors associated with distinguish them were enhancement degree and the tumor-brain interface (AUC: 0.779 (0.686∼0.841), sensitivity: 0.746, specificity: 0.732), their efficacy was slightly weaker. CONCLUSIONS BIOB is more similar to WHO grade 2 meningiomas in clinical and imaging features than WHO grade 1, so we think that it may be reasonable to classify BIOB as WHO Grade 2 meningiomas in the guidelines.
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Affiliation(s)
- Xiao Luo
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Hong Jiang
- Faculty of Medicine, Macau university of science and technology, Macau University of Science and Technology, Taipa, Macau, China
| | - X J Liu
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Z Zhang
- Faculty of Medicine, Macau university of science and technology, Macau University of Science and Technology, Taipa, Macau, China
| | - K Deng
- Philips Healthcare, China International Center, Guangzhou, China
| | - F Lin
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - J Jiang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - Y L Wang
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
| | - J Yu
- Department of Radiology, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen Second People's Hospital, Shenzhen, China
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Shao J, Zhai Y, Zhang L, Xiang L, Lin F. Low-Temperature Catalytic Ozonation of Multitype VOCs over Zeolite-Supported Catalysts. Int J Environ Res Public Health 2022; 19:14515. [PMID: 36361395 PMCID: PMC9654164 DOI: 10.3390/ijerph192114515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/18/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Volatile organic compounds (VOCs) are an important source of air pollution, harmful to human health and the environment, and important precursors of secondary organic aerosols, O3 and photochemical smog. This study focused on the low-temperature catalytic oxidation and degradation of benzene, dichloroethane, methanethiol, methanol and methylamine by ozone. Benzene was used as a model compound, and a molecular sieve was selected as a catalyst carrier to prepare a series of supported active metal catalysts by impregnation. The effects of ozone on the catalytic oxidation of VOCs and catalysts' activity were studied. Taking benzene as a model compound, low-temperature ozone catalytic oxidation was conducted to explore the influence of the catalyst carrier, the active metal and the precious metal Pt on the catalytic degradation of benzene. The optimal catalyst appeared to be 0.75%Pt-10%Fe/HZSM(200). The catalytic activity and formation of the by-products methylamine, methanethiol, methanol, dichloroethane and benzene over 0.75%Pt-10%Fe/HZSM(200) were investigated. The structure, oxygen vacancy, surface properties and surface acidity of the catalysts were investigated. XRD, TEM, XPS, H2-TPR, EPR, CO2-TPD, BET, C6H6-TPD and Py-IR were combined to establish the correlation between the surface properties of the catalysts and the degradation activity.
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Affiliation(s)
- Jiaming Shao
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- Zhejiang SUPCON Technology Co., Ltd., Hangzhou 310053, China
| | - Yunchu Zhai
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- China Energy Engineering Group, Zhejiang Electric Power Design Institute Co. Ltd., Hangzhou 310012, China
| | - Luyang Zhang
- School of Environmental Science and Engineering, Tianjin University and Tianjin Key Lab of Biomass and Wastes Utilization, Tianjin 300072, China
| | - Li Xiang
- School of Environmental Science and Engineering, Tianjin University and Tianjin Key Lab of Biomass and Wastes Utilization, Tianjin 300072, China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University and Tianjin Key Lab of Biomass and Wastes Utilization, Tianjin 300072, China
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Xiang L, Lin F, Cai B, Wang K, Wang Z, Yan B, Chen G, He C. Evaluation of the Flexibility for Catalytic Ozonation of Dichloromethane over Urchin-Like CuMnO x in Flue Gas with Complicated Components. Environ Sci Technol 2022; 56:13379-13390. [PMID: 36074134 DOI: 10.1021/acs.est.2c03811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The evaluation of the poisoning effect of complex components in practical gas on DCM (dichloromethane) catalytic ozonation is of great significance for enhancing the technique's environmental flexibility. Herein, Ca, Pb, As, and NO/SO2 were selected as a typical alkaline-earth metal, heavy metal, metalloid, and acid gas, respectively, to evaluate their interferences on catalytic behaviors and surface properties of an optimized urchin-like CuMn catalyst. Ca/Pb loading weakens the formation of oxygen vacancies, oxygen mobility, and acidity due to the fusion of Mn-Ca/Pb-O, leading to their inferior catalytic performance with poor CO2 selectivity and mineralization rate. Noticeably, the presence of As induces excessively strong acidity, facilitating the inevitable formation of byproducts. Catalytic co-ozonation of NO/DCM is achieved with stoichiometric ozone addition. Unfortunately, SO2 introduction brings irreversible deactivation due to strong competition adsorption and the loss of active sites. Unexpectedly, Ca loading protects active sites from an attack by SO2. The formation of unstable sulfites and the released Mn-O structure offset the negative effect from SO2. Overall, the catalytic ozonation of DCM exhibits a distinctive priority in the antipoisoning of metals with the maintenance of DCM conversion. The construction of more stable acid sites should be the future direction of catalyst design; otherwise, catalytic ozonation should be arranged together with post heavy metal capture and a deacidification system.
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Affiliation(s)
- Li Xiang
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Fawei Lin
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Bohang Cai
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Kaiwen Wang
- Beijing Key Lab of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, P. R. China
| | - Zhihua Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
| | - Beibei Yan
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, P.R. China
| | - Chi He
- State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, P.R. China
- National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
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Wu T, Lin F, Wang J, Li H, Liu M, Zhang YR, Wang WW, Huang F. [Hepatitis C elimination among drug users in China: challenges, strategies and experiences]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:1002-1006. [PMID: 36299198 DOI: 10.3760/cma.j.cn501113-20210311-00116] [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: 06/16/2023]
Abstract
The prevalence of hepatitis C among drug users in China is high, and thus it is one of the populations that needs attention to achieve hepatitis C elimination. However, due to the complexities of this population's situation, hepatitis C elimination still faces many challenges, such as difficult screening, low cure rate, poor compliance, and high reinfection rates. Therefore, the existing diagnostic and therapeutic system cannot meet the needs of this population. China has pledged to establish a unified system for drug users that will integrate drug treatment programs, education, medical care, and rehabilitation, creating favorable conditions for integrating hepatitis C diagnosis and treatment and improving the accessibility of drug users. Starting with the current situation and challenges of eliminating hepatitis C among drug users in China, in combination with cases from other countries, this paper discusses the strategy for eliminating hepatitis C and introduces what Hainan Province did to eliminate hepatitis C among drug users.
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Affiliation(s)
- T Wu
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - F Lin
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - J Wang
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - H Li
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - M Liu
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - Y R Zhang
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570105, China NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - W W Wang
- Department of Infectious Diseases, Fujian Jianxin Hospital, Fuzhou 350002, China
| | - F Huang
- Department of Infectious Diseases, Fujian Jianxin Hospital, Fuzhou 350002, China
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Zhou P, Zeng D, Wang X, Tai L, Zhou W, Zhuoma Q, Lin F. Pollution Levels and Risk Assessment of Heavy Metals in the Soil of a Landfill Site: A Case Study in Lhasa, Tibet. Int J Environ Res Public Health 2022; 19:10704. [PMID: 36078420 PMCID: PMC9517830 DOI: 10.3390/ijerph191710704] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
As an important ecological security barrier in China, the ecological environment of Tibet has aroused widespread concern domestically and overseas. Landfills are a major solid waste treatment approach in Tibet but also cause severe environmental pollution. To date, there are no studies related to the pollution risk of landfills in Tibetan areas. This study investigated the pollution levels, ecological risk, health risk, and possible pollution sources of eight heavy metals in the soils around a landfill site in Lhasa, Tibet. The results indicated that the concentrations of heavy metals in soil were relatively low, only cadmium (Cd), arsenic (As), copper (Cu), chromium (Cr), zinc (Zn), nickel (Ni), and lead (Pb) were 1-2 times higher than the corresponding background value. The values of the single pollution index and geo-accumulation index show that the study area is most seriously polluted by Cd and As. Based on the Nemerow pollution index and the pollution load index, over 83.3% and 8.33% of soil sampling sites had light and moderate contamination levels. According to the results of potential ecological risk evaluation, the potential ecological risk of heavy metals in soil was very low, and only one out of the 72 sampling sites exhibited considerable ecological risk. Cd, As, and mercury (Hg) served as the dominant ecological risk contributors and contributed over 45.0%, 14.1%, and 18% of the ecological risk. The results of the health risk evaluation showed that adults have a higher risk of cancer (1.73 × 10-5), while the non-carcinogenic risk for adults was low. Waste disposal activities and construction activities have a significant influence on soil heavy metal concentrations, causing a higher pollution level in the southeast part of the landfill site in Lhasa.
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Affiliation(s)
- Peng Zhou
- School of Science, Tibet University, Lhasa 850000, China
| | - Dan Zeng
- School of Science, Tibet University, Lhasa 850000, China
| | - Xutong Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Lingyu Tai
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, College of Ecology & Environment, Hainan University, Haikou 570228, China
| | - Wenwu Zhou
- School of Science, Tibet University, Lhasa 850000, China
| | - Qiongda Zhuoma
- The People’s Government of Bahe Township in Gongbo’gyamda, Nyingchi 860000, China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
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Xiang L, Lin F, Cai B, Li G, Zhang L, Wang Z, Yan B, Wang Y, Chen G. Catalytic ozonation of CH 2Cl 2 over hollow urchin-like MnO 2 with regulation of active oxygen by catalyst modification and ozone promotion. J Hazard Mater 2022; 436:129217. [PMID: 35739739 DOI: 10.1016/j.jhazmat.2022.129217] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/10/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
This paper firstly reported efficient catalytic ozonation of CH2Cl2 (dichloromethane, DCM) at low temperature over hollow urchin-like MnO2 with high chlorine resistance. Regulations on morphologies and Cu doping, as well as ozone promotion were conducted to optimize active oxygen of MnO2 catalysts, contributing to excellent catalytic behaviors. Cu doping MnO2 with hollow urchin-like morphology attained a stable 100% DCM conversion with O3/DCM molar ratio of 10 at 120 °C. The ozone utilization rate, final products, and byproducts distribution were discussed. Abundant crystal defects, low-valance Mn/Cu, Oads, and weak acidity, as well as better low temperature reducibility contributed to its superior performance. During DCM catalytic ozonation, DCM oxidation exhibited competitive effect on O3 decomposition due to the occupation of intermediates (CH2ClO3·, O-CH2Cl, and O-CH2 -O) over active sites that should belong to O3 originally. Nevertheless, O3 decomposition exhibited synergistic effects on DCM oxidation with promotion on active oxygen. Density functional theory (DFT) calculations confirmed the positive effect on oxygen vacancy formation and O3/DCM adsorption from Cu doping. The possible mechanism for DCM catalytic ozonation included four parts, including O3/DCM adsorption, O3 activation, DCM oxidation, and electron replenishment. This paper provides new insight for catalytic elimination of chlorinated alkanes at mild conditions.
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Affiliation(s)
- Li Xiang
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China.
| | - Bohang Cai
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Guobo Li
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096 Jiangsu, PR China
| | - Luyang Zhang
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Zhihua Wang
- State key laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Yue Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300134, PR China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
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20
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Qiu S, Wang W, Yu J, Tian X, Li X, Deng Z, Lin F, Zhang Y. Enhanced photocatalytic degradation efficiency of formaldehyde by in-situ fabricated TiO2/C/CaCO3 heterojunction photocatalyst from mussel shell extract. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Weng XT, Li L, Huang XH, Guo X, Lei XJ, Jiao YB, Lin F, Ke Q, Guo WH. [Safety and efficacy of TIPS combined with iodine-125 seed strands in the treatment of patients with hepatocellular carcinoma combined with portal vein tumor thrombosis]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:618-623. [PMID: 36038323 DOI: 10.3760/cma.j.cn501113-20210820-00415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To study the safety and efficacy of transjugular intrahepatic portosystemic shunt (TIPS) combined with iodine-125 (125Ⅰ) seed strands implantation in patients with hepatocellular carcinoma combined with portal vein tumor thrombosis. Methods: 25 cases with diffuse intrahepatic tumor combined with tumor thrombus type Ⅲ/Ⅳ requiring TIPS were simultaneously implanted with 125Ⅰseed strand. Tumor thrombus was controlled with 125I seed implantation brachytherapy to keep the TIPS pathway unobstructed, reduce the portal vein pressure, and observe the changes in the cause of death of the patients. During the same period, 30 cases without TIPS and seed strand implantation were used as controls. Data between groups were compared using t-test, Chi-Squared test or Fisher's exact test. Results: TIPS combined with 125Ⅰ seed strand implantation was safe in patients with diffuse hepatocellular carcinoma combined with type III/IV portal vein tumor thrombus, and 92.0% (23/25) of the patients maintained unobstructed TIPS pathway. Compared with the control group, patients in the treatment group died of fewer lead-related complications, and most died from chronic liver failure (84.0% vs. 56.7%, χ2 = 4.771, P=0.029). The incidence of upper gastrointestinal bleeding was significantly decreased (12.0% vs. 46.7%, χ2 =7.674, P=0.006) and ascites severity was significantly improved (mild 40.0% vs. 16.7%, moderate 52.0% vs. 20.0%, severe 8.0% vs. 46.7%, χ2 =13.246 , P=0.001). Conclusions: TIPS combined with 125Ⅰ seed strand implantation is safe and feasible in patients with diffuse intrahepatic tumor combined with tumor thrombus type Ⅲ/Ⅳ. Moreover, it can effectively keep the shunt patency and reduce portal vein pressure, thereby reducing the incidence of upper gastrointestinal bleeding and improving the degree of ascites. TIPS combined with 125Ⅰ seed strand implantation may be used as a standard treatment modality for patients requiring TIPS therapy combined with tumor thrombus type Ⅲ/Ⅳ.
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Affiliation(s)
- X T Weng
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - L Li
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - X H Huang
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - X Guo
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - X J Lei
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - Y B Jiao
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - F Lin
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - Q Ke
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - W H Guo
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
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22
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Lin F, Wang MZ, Qiu HC, Cao Y, Wang S, Zhao JZ. [Effects of one-stop hybrid operation on the risk and prognosis of brain arteriovenous malformations with posterior feeding artery]. Zhonghua Yi Xue Za Zhi 2022; 102:1614-1620. [PMID: 35644964 DOI: 10.3760/cma.j.cn112137-20210910-02061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the effect of the combination of posterior circulation embolization and micro-resection on the risk and prognosis in patients with brain arteriovenous malformations (bAVMs) supplied by posterior circulation in a one-stop hybrid operation setting. Methods: Patients with bAVMs supplied by posterior circulation who received surgical treatment in Beijing Tiantan Hospital, Capital Medical University, were enrolled from January 2016 to December 2019 from a prospective, multicentral cohort (NCT03209804). The patients were divided into the posterior circulation embolization group and the non-posterior circulation embolization group. Propensity score matching (PSM) (1∶1) was performed according to the baseline information, the morphology of bAVMs, vascular architecture, and Spetzler-Martin grade of brain lesions. The primary endpoint was the deterioration of neurological function. The secondary endpoints were perioperative complications. The differences in surgical risk and clinical prognosis between the two groups were compared. Results: Five hundred and forty-five patients were enrolled in the cohort, and 38.3% met the included criteria (n=209 cases), with 42 cases in the posterior circulation embolization group and 167 cases in the non-posterior circulation embolization group. Depending on whether the patients were posterior circulation embolized, 39 patients in the posterior circulation embolization group and 39 patients in the non-posterior circulation embolization group were finally included after performing PSM. There were 50 males and 28 females, aged 5-58 (30±13) years. The exacerbation rate of neurological dysfunction in the posterior circulation embolization group was higher than that in the non-posterior circulation embolization group three months after surgery, however there was no statistically significant difference between the two groups [15.4% (6/39) vs 2.6% (1/39), P=0.107]. The intraoperative blood loss in the embolization group was significantly less than that in the non-embolization group [650 (500, 1 500) ml vs 1 200 (800, 2 000) ml, P=0.002]. There was no significant difference in microsurgery time between the two groups [437 (374, 521) min vs 424 (359, 601) min, P=0.865]. Likewise, there were no statistically significant differences in the incidence of postoperative complications and aggravation of neurological dysfunction, including postoperative bAVMs residual [5.1%(2/39) vs 7.7%(3/39), P=1.000], hemorrhagic complications [5.1%(2/39) vs 0(0), P=0.494], postoperative ischemic complications [10.3%(4/39) vs 5.1%(2/39), P=0.675], neurological dysfunction at discharge (17.9% vs 15.4%, P=0.755), and one-year neurological dysfunction [5.1%(2/39) vs 2.6%(1/39), P=1.000]. Conclusions: Posterior circulation embolization of bAVMs in a one-stop hybrid operation can effectively reduce intraoperative bleeding and surgical risk. Embolization of the feeding artery has no significant impact on the perioperative complications and neurological outcomes.
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Affiliation(s)
- F Lin
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
| | - M Z Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
| | - H C Qiu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
| | - Y Cao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
| | - S Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
| | - J Z Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University; China National Clinical Research Center for Neurological Diseases; Center of Stroke, Beijing Institute for Brain Disorders, Beijing 100070, China
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23
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He Z, Wang H, Lin F, Ding W, Chen K, Zhang Z. The Safety and Efficacy of Different Endovascular Treatments for In-Stent Restenosis of the Femoropopliteal Artery: A Network Meta-analysis. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2022.03.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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24
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Yuan PJ, Wu KP, Chen SW, Zhang DL, Jin CH, Yao Y, Lin F. ToTEM: A software for fast TEM image simulation. J Microsc 2022; 287:93-104. [PMID: 35638306 DOI: 10.1111/jmi.13127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 04/22/2022] [Accepted: 05/13/2022] [Indexed: 11/28/2022]
Abstract
ToTEM, a multislice based image simulation software is developed for transmission electron microscope (TEM). This software implements the following major features: i) capability of assigning three-dimensional potentials of atom into multiple slices and precise introduction of phase shift caused by the sub-pixel atomic position, ii) employing CUDA coding and graphical processing units (GPU) with multi-threading parallel algorithm based on the powerful batch (inverse) fast Fourier transform (FFT), which is especially beneficial for image simulation of scanning transmission electron microscopy (STEM) or (integrated) differential phase contrast (i)DPC, iii) design for efficiently generating large batch of dataset of high resolution transmission electron microscopy (HRTEM) images. Image simulation acceleration for STEM has been verified by simulating a large-scale SrTiO3 . Additionally, iDPC image of MFI-type zeolites with xylene molecules encapsulated in straight channels demonstrates the advantage of iDPC in detecting light molecules. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- P J Yuan
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, Hunan, 411105, China
| | - K P Wu
- College of Electronic Engineering, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - S W Chen
- College of Electronic Engineering, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - D L Zhang
- Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing, 400030, China
| | - C H Jin
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan, Hunan, 411105, China.,State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Y Yao
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing, 100190, China
| | - F Lin
- College of Electronic Engineering, South China Agricultural University, Guangzhou, Guangdong, 510642, China
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25
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Li K, Li J, Yu H, Lin F, Feng G, Jiang M, Yuan D, Yan B, Chen G. Utilizing waste duckweed from phytoremediation to synthesize highly efficient FeN xC catalysts for oxygen reduction reaction electrocatalysis. Sci Total Environ 2022; 819:153115. [PMID: 35041958 DOI: 10.1016/j.scitotenv.2022.153115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 12/30/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Duckweed is a universal aquatic plant to remove nitrogen source pollutants in the field of phytoremediation. Due to the naturally abundant nitrogen, synthesis of carbon materials from duckweed would be a high-value approach. In oxygen reduction reaction (ORR) of metal-air batteries and fuel cells, non-noble metals and heteroatoms co-doped electrocatalysts with excellent catalytic activity and remarkable stability are promising substitutes for Pt-based catalysts. The first-class ORR performance is determined by appropriate pore structure and active sites, which are strongly associated with the feasible synthesis methods. Herein, a facile one-step synthesis strategy for the transition metals- and nitrogen-codoped carbon (MNxC) based catalysts with hierarchically porous structure was developed. The MNxC (M = Fe, Co, Ni, and Mn) active sites were constructed and FeNxC (D-ZB-Fe) was the best electrocatalyst with excellent ORR performance. Results showed that D-ZB-Fe exhibited an obvious honeycomb porous structure with specific surface area of 1342.91 m2·g-1 and total pore volume of 1.085 cm3·g-1. It also possessed considerable active atoms and sites, where the proportion of pyridine N and graphite N was up to 72.9%. The above feature made for a superior ORR electrocatalytic activity. In specific, the onset and half-wave potential were 0.974 V and 0.857 V vs. RHE (Reversible Hydrogen Electrode), respectively. When compared with performances of commercial Pt/C, the four-electron pathway and relatively low peroxide yield, ca. 5%, were almost equivalent. Furthermore, D-ZB-Fe showed an excellent stability and remarkably methanol tolerance by the durability test. In conclusion, this research provides a new synthesis strategy of electrocatalysts with porous structures and active sites.
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Affiliation(s)
- Kai Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Jiantao Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Hongdi Yu
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China.
| | - Guoqing Feng
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Menghan Jiang
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Dingkun Yuan
- The Institute for Energy Engineering, China Jiliang University, Hangzhou 310000, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes, Tianjin 300072, PR China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
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Tang H, Wang Z, Shao J, Lin F, Liu P, He Y, Zhu Y. Catalytic Decomposition of Residual Ozone over Cactus-like MnO 2 Nanosphere: Synergistic Mechanism and SO 2/H 2O Interference. ACS Omega 2022; 7:9818-9833. [PMID: 35350343 PMCID: PMC8945177 DOI: 10.1021/acsomega.2c00120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
Ground-level ozone is an irritant and is harmful to human respiratory and nervous systems. Thus, four manganese oxides with different crystals were hydrothermally synthesized to decompose residual ozone (deO3) in an ozone synergistic-oxidation system. Among them, a cactus-like MnO2-IV nanosphere exhibited the highest deO3 activity, with excellent tolerance to water vapor and SO2/H2O, which could maintain >88% deO3 efficiency in the high-humidity and sulfur-containing conditions. It benefits from the unique morphology, high specific surface area, superior redox properties, oxygen chemisorption capabilities, abundant surface-active hydroxyl species, and low valence Mn species. More importantly, the detailed interference mechanism of O2/O3/H2O/SO2 molecules on MnO2-IV was revealed utilizing in situ diffused reflectance infrared Fourier transform spectroscopy and X-ray photoelectron spectroscopy. H2O generally caused recoverable deactivation, but that caused by SO2 was irreversible. The synergistic effect of SO2/H2O promoted the formation of an unstable sulfate species, thereby deepening the deactivation but inhibiting the irreversible poisoning. Finally, nine specific steps to decompose ozone via surface-active hydroxyl/intermediates were established.
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Affiliation(s)
- Hairong Tang
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
| | - Zhihua Wang
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
| | - Jiaming Shao
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
- Zhejiang
SUPCON Technology Co., Ltd., Hangzhou 310053, P.R. China
| | - Fawei Lin
- School
of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P.R. China
| | - Peixi Liu
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
| | - Yong He
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
| | - Yanqun Zhu
- State
Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P.R. China
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27
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Wang Z, Liu L, Pang F, Zheng Z, Teng Z, Miao T, Fu T, Rushdi HE, Yang L, Gao T, Lin F, Liu S. Novel insights into heat tolerance using metabolomic and high-throughput sequencing analysis in dairy cows rumen fluid. Animal 2022; 16:100478. [PMID: 35247705 DOI: 10.1016/j.animal.2022.100478] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 01/29/2022] [Accepted: 01/31/2022] [Indexed: 01/10/2023] Open
Abstract
Heat stress influences rumen fermentative processes with effects on the physiology and production of dairy cows. However, the underlying relationship between rumen microbiota and its associated metabolism with heat tolerance in cows have not been extensively described yet. Therefore, the main objective of this study was to investigate differential heat resistance in Holstein cows using rumen bacterial and metabolome analyses. We performed both principal component analysis and membership function analysis to select seven heat-tolerant (HT) and seven heat-sensitive (HS) cows. Under heat stress conditions, the HT cows had a significantly (P < 0.05) higher propionic acid content than the HS cows; while measures of the respiratory rate, acetic, and butyric acid in the HT cows were significantly (P < 0.05) lower compared with the HS cows. Also, the HT cows showed lower (P < 0.01) rectal temperature and acetic acid to propionic acid ratio than the HS group of cows. Omics sequencing revealed that the relative abundances of Muribaculaceae, Rikenellaceae, Acidaminococcaceae, Christensenellaceae, Rikenellaceae_RC9_gut_group, Succiniclasticum, Ruminococcaceae_NK4A214_group and Christensenellaceae_R-7_group were significantly (P < 0.01) higher in the HT cows; whereas Prevotellaceae, Prevotella_1, Ruminococcaceae_UCG-014, and Shuttleworthia were significantly (P < 0.01) lower in HT cows compared to HS cows. Substances mainly involved in carbohydrate metabolism, including glycerol, mannitol, and maltose, showed significantly higher content in the HT cows (P < 0.05) compared to that in the HS cows. Simultaneously, distinct metabolites were significantly correlated with differential bacteria, suggesting that glycerol, mannitol, and maltose could serve as potential biomarkers for determining heat resistance that require further study. Overall, distinct changes in the rumen microbiota and metabolomics in the HT cows may be associated with a better adaptability to heat stress. These findings suggest their use as diagnostic tools of heat tolerance in dairy cattle breeding schemes.
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Affiliation(s)
- Z Wang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - L Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - F Pang
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - Z Zheng
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - Z Teng
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, People's Republic of China
| | - T Miao
- Henan Huahua Niu Dairy Co., Ltd, Zhengzhou, People's Republic of China
| | - T Fu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - H E Rushdi
- Department of Animal Production, Faculty of Agriculture, Cairo University, 12613 Giza, Egypt
| | - L Yang
- College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, People's Republic of China
| | - T Gao
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - F Lin
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China
| | - S Liu
- College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, Henan, People's Republic of China.
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Crubilié C, Lin F, Billuart O, Gutton J, Buronfosse A, Sauvage C. Mise en place d'un score de ciblage des relectures pour les techniciens en information médicale : un outil de management d’équipe. Rev Epidemiol Sante Publique 2022. [DOI: 10.1016/j.respe.2022.01.082] [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: 11/29/2022] Open
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Chen G, Sun B, Li J, Lin F, Xiang L, Yan B. Products distribution and pollutants releasing characteristics during pyrolysis of waste tires under different thermal process. J Hazard Mater 2022; 424:127351. [PMID: 34879557 DOI: 10.1016/j.jhazmat.2021.127351] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 07/13/2021] [Revised: 09/08/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Pyrolysis has been widely utilized to achieve resource recovery of waste tires by attaining oil and carbon black. However, due to the stacking effect of fixed bed, the heat and mass transfer is insufficient during the pyrolysis process of waste tires. Additionally, the harmful N/S/Cl pollutants and heavy metals are inevitable that has been ignored. This paper systematically studied the effect of promoting heat and mass transfer on the oil quality and pollutant releasing characteristics during the pyrolysis of waste tires. A fixed bed pyrolizer with multifunction was innovatively designed to conduct fast pyrolysis by equipping an intermittent feeder and slow pyrolysis by equipping an agitator. Fast pyrolysis with feeding step by step and slow pyrolysis with stirring could promote the heat and mass transfer, which was firstly researched in lab-scale reactor. The experimental results demonstrated that slow pyrolysis with stirring was recommended with the target of acquiring pyrolytic oil. Promoting heat and mass transfer could improve the quality of oil and increase the retaining proportion of S in char during both fast and slow pyrolysis. The combustion of pyrolysis oil and gas generated more dioxins (0.6 ng/gwt) than the total dioxins in pyrolytic gas and oil (0.06 ng/gwt).
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Affiliation(s)
- Guanyi Chen
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China; School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
| | - Bingyan Sun
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Jiantao Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China.
| | - Li Xiang
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin 300072, PR China
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Ye H, Li Q, Yu H, Xiang L, Wei J, Lin F. Pyrolysis Behaviors and Residue Properties of Iron-Rich Rolling Sludge from Steel Smelting. Int J Environ Res Public Health 2022; 19:ijerph19042152. [PMID: 35206336 PMCID: PMC8871665 DOI: 10.3390/ijerph19042152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 12/10/2022]
Abstract
Iron-rich rolling sludge (FeRS) represents a kind of typical solid waste produced in the iron and steel industry, containing a certain amount of oil and large amounts of iron-dominant minerals. Pyrolysis under anaerobic environment can effectively eliminate organics at high temperatures without oxidation of Fe. This paper firstly investigated comprehensively the pyrolysis characteristics of FeRS. The degradation of organics in FeRS mainly occurred before 400 °C. The activation energy for pyrolysis of FeRS was extremely low, ca. 5.44 kJ/mol. The effects of pyrolytic temperature, atmosphere, heating rate, and stirring on pyrolysis characteristics were conducted. Commonly, the yield of solid residues maintained around 85 wt.%, with approximately 13 wt.% oil and 2 wt.% gas. Due to the low yield of oil and gas, their further utilization remains difficult despite CO2 introduction which could upgrade their quality. The solid residues after pyrolysis exhibited porous properties with co-existence of micropores and mesopores. Combined with the high content of zero-valent iron, magnetic property, hydrophobic characteristic, and low density, the solid residues could be further utilized for water pollution control and soil remediation. Moreover, the solid residues were suitable for sintering to recover valuable iron resources. However, the solid residues also contained certain heavy metals, such as Cd, Cr, Cu, Ni, Pb, and Zn, which might cause secondary pollution during their utilization. In particular, the toxic Cr possessed high content, which should be treated with detoxification and removal. This paper provides fundamental information for pyrolysis of FeRS and utilization of solid residues.
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Affiliation(s)
- Hengdi Ye
- National Engineering Research Center of Sintering and Pelletizing Equipment System, Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, China; (H.Y.); (J.W.)
| | - Qian Li
- National Engineering Research Center of Sintering and Pelletizing Equipment System, Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, China; (H.Y.); (J.W.)
- School of Engineering, GongQing Institute of Science and Technology, Jiujiang 332020, China
- Correspondence: (Q.L.); (F.L.)
| | - Hongdi Yu
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; (H.Y.); (L.X.)
| | - Li Xiang
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; (H.Y.); (L.X.)
| | - Jinchao Wei
- National Engineering Research Center of Sintering and Pelletizing Equipment System, Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, China; (H.Y.); (J.W.)
| | - Fawei Lin
- Tianjin Key Lab of Biomass/Wastes Utilization, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; (H.Y.); (L.X.)
- Correspondence: (Q.L.); (F.L.)
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Wang M, Lin F, Yi XL, Pang C. [The pertinence of cognitive function of attention deficit hyperactivity disorder and OSA]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:227-230. [PMID: 35196773 DOI: 10.3760/cma.j.cn115330-20210413-00200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- M Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital affiliated to Capital Institute of Pediatrics, Beijing 100020, China
| | - F Lin
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital affiliated to Capital Institute of Pediatrics, Beijing 100020, China
| | - X L Yi
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital affiliated to Capital Institute of Pediatrics, Beijing 100020, China
| | - C Pang
- Department of Otorhinolaryngology Head and Neck Surgery, Children's Hospital affiliated to Capital Institute of Pediatrics, Beijing 100020, China
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Gaisset R, Lin F, Borry O, Quemeneur C, Lazareth I, Emmerich J, Priollet P, Yannoutsos A. Incident cardiovascular events and early mortality in patients with revascularized critical limb ischemia. J Med Vasc 2022; 47:19-26. [PMID: 35393087 DOI: 10.1016/j.jdmv.2022.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Patients with critical limb ischemia (CLI) present a high risk of cardiovascular events and death. This study aimed to investigate the incidence of major adverse cardiovascular events (MACE) and one-year mortality in patients undergoing percutaneous revascularization procedure for CLI. METHODS This investigation is a retrospective analysis of an ongoing cohort study in patients with CLI undergoing endovascular revascularization, hospitalized in the vascular medicine department from November 2013 to December 2018. Major cardiovascular events were collected during the first year after revascularization procedure and were defined as heart failure, acute coronary syndrome, ischemic stroke and sudden death. Mortality and major limb amputations, defined as above-the-ankle amputation, were determined during the one-year follow-up period. Multivariate logistic regression analyses were performed to identify factors independently associated with the occurrence of MACE and one-year mortality after revascularization procedure. A P≤0.05 was considered as statistically significant. RESULTS The study included 285 consecutive patients, 157 men (55%) and 128 women (45%), with a mean age of 77.8±12 years. Treated hypertension was present in 222 (78%) patients; diabetes was present in 137 (48%) patients; 112 (39%) patients had known coronary heart disease and 20 (7%) patients were dialysis dependent. During the one-year follow-up after revascularization procedure, 75 (26.3%) patients presented an incident cardiovascular event, of whom 19 (6.7%) patients in the perioperative period. Cumulative mortality rate was 26.7% (76 patients) mostly from cardiovascular causes. Twenty-five patients (8.8%) experienced major amputation. In multivariate analysis, the occurrence of MACE was associated with an increased mortality risk (HR 6.96 (2.99-16.94), P<0.001). Other variables associated with an increased mortality were living in a nursing home and malnutrition. Decompensated heart failure and coronary heart disease were both associated with incident MACE in multivariate analysis, independently of confounders. CONCLUSION In the present study population, incident MACE were prevalent in the year following endovascular revascularization procedure in patients with CLI and were associated with an increased risk of mortality. Coronary heart disease and decompensated heart failure are important contributors for the occurrence of MACE. In this elderly patient population with CLI, these results should be taken into account during the multidisciplinary team meeting before consideration of revascularization procedure.
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Affiliation(s)
- R Gaisset
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Clinical Investigation Center, Hôpital Européen George-Pompidou, AP-HP, Paris, France
| | - F Lin
- Medical Information department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - O Borry
- Internal medicine department, Hôpital Louis-Mourier, AP-HP, Colombes, France
| | - C Quemeneur
- Department of Anaesthesiology and critical care, GRC 29, DMU DREAM, Sorbonne University, Pitié-Salpêtrière Hospital, AP-HP, Paris, France; Department of Anaesthesiology, Clinique Drouot Sport, 21, rue Rémusat, 75016 Paris, France
| | - I Lazareth
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Clinical Investigation Center, Hôpital Européen George-Pompidou, AP-HP, Paris, France
| | - J Emmerich
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Clinical Investigation Center, Hôpital Européen George-Pompidou, AP-HP, Paris, France; Inserm UMR 1153-CRESS, Université Paris, Paris, France
| | - P Priollet
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Clinical Investigation Center, Hôpital Européen George-Pompidou, AP-HP, Paris, France
| | - A Yannoutsos
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Clinical Investigation Center, Hôpital Européen George-Pompidou, AP-HP, Paris, France; Inserm UMR 1153-CRESS, Université Paris, Paris, France.
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Gutton J, Lin F, Billuart O, Lajonchère JP, Crubilié C, Sauvage C, Buronfosse A. [Artificial intelligence for medical information departments : construction and evaluation of a decision-making tool to identify and prioritize stays of which the PMSI coding could be optimized, and to ensure the revenues generated by activity-based pricing]. Rev Epidemiol Sante Publique 2022; 70:1-8. [PMID: 35027236 DOI: 10.1016/j.respe.2021.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/11/2021] [Accepted: 11/22/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Medical Information Departments help to optimize the hospital revenues generated by activity-based pricing. A review of medical files, selected after the targeting of coding summaries, is organized. The aim is to make any corrections to the diagnoses or coded procedures with a potential impact on the pricing of the stay. Targeting is of major importance as a means of concentrating resources on the files for which coding can be effectively improved. The tools available for targeting can be optimized. We have developed a decision-making support tool to make targeting more efficient. The objective of our study was to evaluate the performance of this tool. METHODS The tool combines an artificial intelligence module with a rule-based expert module. A predictive score is assigned to each coding summary that reflects the probability of a revalued stay. Evaluation of the performance of this tool was based on a sample of 400 stays of at least 3 nights of patients hospitalized at the Paris Saint-Joseph Hospital from 1st November to 31st December 2019. Each stay was reviewed by a coding expert, without knowledge of the score assigned and without help from expert queries. Two main assessment criteria were used: area under the ROC curve and positive predictive value (PPV). RESULTS The area under the ROC curve was 0.70 (CI 95% [0.64-0.76]). With a revalued coding rate of 32%, PPV was 41% for scores above 5, 65% for scores above 8, 88% for scores above 9. CONCLUSION The study made it possible to validate the performance of the tool. The implementation of new variables could further increase its performance. This is an area of development to be considered, particularly with in view of generalizing individual invoicing in hospitals.
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Affiliation(s)
- J Gutton
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France.
| | - F Lin
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France
| | - O Billuart
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France
| | - J-P Lajonchère
- Direction du Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - C Crubilié
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France
| | - C Sauvage
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France
| | - A Buronfosse
- Direction de l'information médicale du Groupe Hospitalier Paris Saint-Joseph, 185 rue Raymond Losserand, 75014 Paris, France
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Affiliation(s)
- Z Zeng
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China and
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, China
| | - Y Zhu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China and
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, China
| | - C Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China and
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, China
| | - F Lin
- Department of Thoracic Surgery, West China Hospital, Sichuan University, No. 37, Guoxue Alley, Chengdu, Sichuan 610041, China and
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Sichuan University, No. 37, Guoxue Alley, Chengdu 610041, China
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Duan Y, Liu P, Lin F, He Y, Zhu Y, Wang Z. Catalytic ozonation of dichloromethane at low temperature and even room temperature on Mn-loaded catalysts. RSC Adv 2022; 12:33429-33439. [PMID: 36425204 PMCID: PMC9679731 DOI: 10.1039/d2ra05828f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022] Open
Abstract
Five Mn-loaded catalysts were synthesized on γ-Al2O3, TiO2, ZrO2, nano γ-Al2O3 and nanoZrO2 supports. The catalytic ozonation of DCM (dichloromethane) was evaluated under industrial conditions (i.e., temperature, O3 input, H2O and SO2 content). According to results, >90% DCM conversion without O3 residue was achieved for all samples at 120 °C and an O3/DCM ratio of 6. At 20–120 °C, the highest Mn3+ content, abundant surface oxygen species and more weak acid sites led to the best performance of Mn/nanoAl2O3 (M/A-II). At 20 °C and 120 °C, 80% and 95% DCM can be degraded respectively on M/A-II at 20 °C with matched surface oxygen species and acidity. An O3/DCM ratio of 6 was optimal for performance and economy. For the effects of complex exhaust, both H2O and SO2 deactivated M/A-II. The H2O-induced deactivation was recoverable and also removed surface-deposited chlorine-containing species, enhancing the HCl selectivity. Finally, the Cl equilibrium of the reaction was comprehensively analyzed. The collaboration of abundant surface oxygen species and weak acid sites at low temperatures ensures the best functioning of M/A-II.![]()
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Affiliation(s)
- Yaxin Duan
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Peixi Liu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Yong He
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yanqun Zhu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhihua Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, P. R. China
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Yu H, Wang W, Lin F, Li K, Yan B, Song Y, Huang C, Chen G. A facile and green strategy to synthesize N/P co-doped bio-porous carbon with high yield from fungi residue for efficient VOC adsorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119291] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Yu H, Lin F, Li K, Wang W, Yan B, Song Y, Chen G. Triple combination of natural microbial action, etching, and gas foaming to synthesize hierarchical porous carbon for efficient adsorption of VOCs. Environ Res 2021; 202:111687. [PMID: 34273370 DOI: 10.1016/j.envres.2021.111687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
Fungi residue, vinasse, and biogas residue differ from general biomass waste due to natural microbial action. Microbial fermentation helps create natural channels for the permeation of activators and produces proteins for natural nitrogen doping. Inspired by these advantages on porous carbon synthesis, this study adopted dual activators of KOH and KHCO3 to synthesize porous carbon with different pore ratios for efficient adsorption of volatile organic compounds (VOCs). The fungi residue possessed the least lignin due to the most severe microbial action, contributing to the best pore structures after activation. The etching effect from potassium compounds and gas foaming from the carbonate decomposition contributed to creating hierarchical porous carbon with ultra-high surface area, ca. 1536.8-2326.5 m2/g. However, KHCO3 addition also caused nitrogen erosion, such that lower adsorption capacity was attained even with a higher surface area when the mass ratio of KOH/KHCO3 decreased from 2.5:0.5 to 2:1. The maximum adsorption capacities of chlorobenzene (CB) and benzene (PhH) reached 594.0 and 394.3 mg/g, respectively. Pore structure variations after adsorption were evaluated by freeze treatment to discover the adsorption mechanism. The surface area after CB and PhH adsorption decreased 40.3% and 34.5%, respectively. Most of the mesopores might transform into micropores due to the mono/multilayer stacking of adsorbates. The VOC adsorption kinetics were simulated by the Pseudo-first- and -second-order models and Y-N model. This paper provides a new approach for high-value biomass waste utilization after microbial action to synthesize efficient adsorbents for VOCs.
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Affiliation(s)
- Hongdi Yu
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China.
| | - Kai Li
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China
| | - Wenjun Wang
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China
| | - Yingjin Song
- School of Environmental Science and Engineering, Tianjin University/Tianjin Key Lab of Biomass/Wastes Utilization, Tianjin, 300072, PR China
| | - Guanyi Chen
- School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, 300134, PR China
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Xu H, Lu L, Lu T, Xu Y, Zong J, Huang C, Lin F, Zheng Y, Lin C, Lin S, Qiu S, Pan J, Lin S, Guo Q. Identifying the Optimal Candidates for the Best Utilization of Locoregional Radiation Therapy in Patients With De Novo Metastatic Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1124] [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: 12/01/2022]
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Li XL, He QQ, Zhuang DY, Wang M, Zhou P, Yue T, Zhu J, Liu Y, Lin F, Li CY, Shao CX, Wang D, Wang G. [Outcomes of 1 000 cases of robotic thyroidectomy by bilateral axillo-breast approach: a retrospective study in a single center]. Zhonghua Wai Ke Za Zhi 2021; 59:918-922. [PMID: 34743454 DOI: 10.3760/cma.j.cn112139-20201218-00866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the surgical outcome, completeness and safety of robotic thyroidectomy by bilateral axillo-breast approach (BABA). Methods: From February 2014 to May 2019, 1 000 cases of robotic thyroidectomy via BABA at the Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army were performed. The clinicopathologic characteristics, operation times, perioperative complications, and oncologic outcomes of patients underwent robotic thyroidectomy were collected and reviewed retrospectively. There were 216 males and 784 females, aging (42.3±11.5) years (range: 7 to 75 years). There were 270 cases with benign tumors, and 730 cases with malignant cancers (the tumor diameter was (7.9±6.7) mm (range: 0.1 to 60.0 mm)). Results: There were 999 patients received robotic thyroidectomy using BABA approach successfully, while only 1 case conversed to open operation. The postoperative hospital stay was (7.5±2.5) days (range: 2 to 30 days). Among the 730 patients with thyroid cancers, 725 cases (99.3%) were papillary thyroid carcinoma, 579(79.3%) cases were with papillary thyroid microcarcinoma. Lymph node metastasis was observed in 371(50.8%) cases. The retrieved central lymph node number was 11.2±6.1 (range: 1 to 44),and the retrieved lateral lymph node number was 14.0±8.8 (range: 1 to 52). Postoperative transient hypoparathyroidism and vocal cord palsy occurred in 247(24.70%) and 56(5.60%) cases. Both of permanent hypoparathyroidism and vocal cord palsy occurred in 2 (0.20%) cases. Other surgical complications included chyle leakage (6.1%, 28/460), trachea injury (0.40%, 4/1 000), carotid artery injury (0.10%, 1/1 000). Local regional lymph node recurrence was developed in 4 patients. All patients were satisfied with the postoperative cosmetic outcomes. Conclusions: Robotic thyroidectomy by BABA is safe and effective, suitable for large benign tumors and early thyroid cancers with central or lateral lymph node metastasis. It could obtain superior cosmetic results.
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Affiliation(s)
- X L Li
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - Q Q He
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - D Y Zhuang
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - M Wang
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - P Zhou
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - T Yue
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - J Zhu
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - Y Liu
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - F Lin
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - C Y Li
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - C X Shao
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - D Wang
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
| | - G Wang
- Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army, Jinan 250031, China
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Yannoutsos A, Lin F, Gaisset R, Jaillette C, Lazareth I, Emmerich J, Priollet P. Characteristics and outcomes of octogenarians with revascularized critical limb ischemia: Impact of altered cardiac function for early mortality. J Med Vasc 2021; 46:224-231. [PMID: 34862016 DOI: 10.1016/j.jdmv.2021.10.003] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Patients with critical limb ischemia (CLI) present with advanced age and end-stage organ damage, in particular heart failure. The aim of the present study is to describe clinical and biological characteristics in octogenarian patients with CLI compared to their younger counterparts and to determine the peri-procedural risk and early mortality after endovascular procedure. METHODS From November 2013 to May 2019, 315 consecutive patients were retrospectively included. Clinical and biological parameters were recorded at baseline before endovascular revascularization. The main outcome was total 1-year mortality. RESULTS The study included 170 octogenarians and 145 non-octogenarians. The mean age of octogenarian patients was 86.9±4.8 years, almost 20 years higher than that registered in non-octagenarians patients (67.4±8.6 years). Octogenarian patients were mostly women (59.4%), presented with lower body mass index (23.8±4.4kg/m2), lower serum albumin level (31.5±5.4g/L) and lower creatinine clearance (66.1±24.5mL/mn) than younger counterparts. They were more likely to be institutionalized in a nursing home (27.1%). In the peri-procedural period, major bleeding occurred in 40 patients (12.7%), without statistical significance between the two age groups. Peri-procedural mortality occurred in 12 patients (3.8%), of whom 10 patients (83%) were octogenarians. Cumulative mortality rate was 25.4% (80 patients) during the one-year follow-up period: 58 octogenarians died (34.1%) compared to 22 non-octogenarian patients (15.2%), P<0.001. Cardiovascular events were highly prevalent, accounting for 40% of overall mortality. Twenty-five patients (8%) experienced major amputation, without significant difference between the two age groups. In octogenarian population, institutionalized status (P=0.004) and BNP level (P=0.001) were positively correlated with mortality whereas systolic blood pressure (P<0.001), left ventricular ejection fraction (P=0.003), serum albumin (P=0.020), C-Reactive protein (P=0.020) and renin-angiotensin system inhibitors at hospital discharge were negatively correlated with mortality. In multivariate analysis for mortality, only BNP level≥500pg/mL (HR 3.27; 95% CI 1.04-10.97; P=0.04), was correlated with mortality, independently of other confounders. CONCLUSION In the present study population, octogenarians represent a rather distinct CLI population, 20 years of age older as compared to non-octogenarians, with prevalent malnutrition and institutionalized status. The present results underline a substantial one-year mortality rate of 34.1% in this elderly population following revascularization procedure with a 6% peri-procedural mortality. Decompensated heart failure is an important contributor for mortality.
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Affiliation(s)
- A Yannoutsos
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France; Inserm UMR 1153-CRESS, université Paris Descartes, Paris, France.
| | - F Lin
- Medical information department, groupe hospitalier Paris Saint-Joseph, Paris, France
| | - R Gaisset
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France
| | - C Jaillette
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France
| | - I Lazareth
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France
| | - J Emmerich
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France; Inserm UMR 1153-CRESS, université Paris Descartes, Paris, France
| | - P Priollet
- Vascular medicine department, groupe hospitalier Paris Saint-Joseph, Paris, France
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Guo BY, Lin F, Bai ZM, Tao K, Wang HY. [Expression of microRNA-296 in rabbit hypertrophic scars and its role to human fibroblasts]. Zhonghua Shao Shang Za Zhi 2021; 37:725-730. [PMID: 34404160 DOI: 10.3760/cma.j.cn501120-20210420-00142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of microRNA-296 (miR-296) in rabbit hypertrophic scars and its role in human fibroblasts (HFbs). Methods: The experimental method was used. Twelve healthy adult New Zealand long-eared rabbits regardless gender were randomly divided into normal control group and scar group, with 6 rabbits in each group. The rabbit ear hypertrophic scar model was created in scar group according to the literature, and the rabbits in normal control group did not receive any treatment. On 60 days after setting up the models in scar group, hematoxylin-eosin staining was performed to observe the growth and arrangement of fibroblasts (Fbs) in the ear scars and skin tissue of rabbits in the two groups. The mRNA expressions of miR-296 and transforming growth factor-β1 (TGF-β1) in ear scars and skin tissue of rabbits in the two groups were detected by real-time fluorescent quantitative reverse transcription polymerase chain reaction, and the correlation of mRNA between miR-296 and TGF-β1 was performed with Pearson regression analysis. Two batches of HFbs were used and transfected respectively with corresponding sequences, with the 1st batch being divided into TGF-β1 wild type+miR-296 negative control group and TGF-β1 wild type+miR-296 mimic group and the 2nd batch being divided into TGF-β1 mutant type+miR-296 negative control group and TGF-β1 mutant type+miR-296 mimic group. At 48 h after transfection, luciferase reporter gene detection kit was used to detect the luciferase and renal luciferase expression of TGF-β1 in the cells of each group, with their ratio being used to reflect the gene expression level. Two batches of HFbs were used, and each batch of cells were divided into miR-296 negative control group and miR-296 mimic group, being transfected with the corresponding sequences. At 0 (immediately), 12, 24, 36, and 48 h after transfecting the first batch of cells, the cell proliferation was detected by thiazolyl blue method. At 24 h after transfecting the second batch of cells, the expression of TGF-β1 and collagen type Ⅰ was detected by Western blotting. The number of samples in cell experiments was 3. Data were statistically analyzed with analysis of variance for factorial design, independent sample t test. Results: On 60 days after setting up the models in scar group, the Fbs of rabbit ear scar tissue in scar group proliferated and arranged disorderly, while the growth and arrangement of Fbs in rabbit ear skin tissue in normal control group were normal. The mRNA expression of miR-296 of rabbit scar tissue in scar group (0.65±0.11) was significantly lower than 1.19±0.12 of rabbit ear skin tissue in normal control group (t=5.175, P<0.01). The mRNA expression of TGF-β1 of rabbit ear scar tissue in scar group (1.47±0.06) was significantly higher than 1.10±0.03 of rabbit ear skin tissue in normal control group (t=12.410, P<0.01). Pearson regression analysis showed that there was a negative correlation between the mRNA expression of miR-296 and TGF-β1 in the ear scars and skin tissue of 12 rabbits (F=7.278, P<0.05). At 48 h after transfection, the gene expression of TGF-β1 of cells in TGF-β1 wild type+miR-296 mimic group was significantly lower than that in TGF-β1 wild type+miR-296 negative control group (t=35.190, P<0.01), while the gene expression of TGF-β1 of cells in the two TGF-β1 mutant type groups were close (P>0.05). The HFbs proliferation ability in miR-296 mimic group was significantly lower than that in miR-296 negative control group at 12, 24, 36, and 48 h after transfection(t=3.275, 11.980, 10.460, 17.260, P<0.05 or P<0.01). At 24 h after transfection, the protein expressions of TGF-β1 and type Ⅰ collagen of cells in miR-296 negative control group were significantly higher than those in miR-296 mimic group (t=3.758, 29.390, P<0.05 or P<0.01). Conclusions: The miR-296 expression in rabbit hypertrophic scars is down-regulated; miR-296 can inhibit the proliferation of HFbs and the expression of type Ⅰ collagen by down regulating the expression of TGF-β1.
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Affiliation(s)
- B Y Guo
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - F Lin
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Z M Bai
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Tao
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H Y Wang
- Department of Burns and Plastic Surgery, General Hospital of Northern Theater Command, Shenyang 110016, China
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Wang J, Liu M, Zhang YR, Xing HY, Li H, Lin F, Wu T. [A real-world study of sofosbuvir-based drug treatment for hepatitis C virus genotype 6 infection in Hainan region of China]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:679-684. [PMID: 34371539 DOI: 10.3760/cma.j.cn501113-20200525-00271] [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 explore the real-world effectiveness and safety of sofosbuvir-based regimen for patients with chronic hepatitis C virus (HCV) genotype 6 infection in Hainan Island. Methods: Fifty-three cases with chronic hepatitis C virus (HCV) genotype 6 infection who were initially treated with a sofosbuvir (SOF)-based regimen [sofosbuvir/velpatasvir (SOF/VEL) for 12 weeks or sofosbuvir combined with ribavirin (SOF+RBV) for 24 weeks], followed by 24 weeks of follow-up after discontinuation of the drug from January 2018 to March 2020 were selected. The primary outcome measures were incidence of sustained virological response at 12 weeks (SVR12) after the drug withdrawal. The secondary outcome measures were adverse drug events with sustained virological response at the end of treatment and 24 weeks after the end of treatment. The occurrence of adverse events was observed during the treatment. An intragroup comparison was performed by t-test. Intention-to-treat and modified intention-to-treat analysis was used for sustained virological respons. Results: The subtype distribution of chronic hepatitis C virus (HCV) genotype 6 in 53 cases of chronic hepatitis C infection were as follows: 22 cases of type 6a, 5 cases of type 6w, 5 cases of type 6xa, 3 cases of type 6v, 2 cases of type 6e, 2 cases of type 6r, 1 case of type 6xh, and 13 cases of special virus strains with undetermined genotype. The overall sustained virological response rate at 12 weeks after the drug withdrawal was 100%. Furthermore, HCV RNA was undetectable during the treatment period (4 weeks), at the end of treatment and after the treatment (24 weeks). There were seven cases of adverse events, mainly including fatigue, anorexia, and mild anemia; however, no serious adverse events were reported. Conclusion: Sofosbuvir-based regimen combined with ribavirin or velpatasvir cannot only achieve high response rate to HCV subtype 6a, but also obtain a good sustained virological response to the rare prevalent sub-genotypes and special virus strains of HCV genotype 6, with mild adverse reactions and acceptable safety profile.
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Affiliation(s)
- J Wang
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - M Liu
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - Y R Zhang
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - H Y Xing
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - H Li
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - F Lin
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
| | - T Wu
- Department of Infectious Diseases, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China; NHC Key Laboratory of Control of Tropical Diseases, Hainan Medical University, Haikou 570311, China
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Wang W, Yu H, Li K, Lin F, Huang C, Yan B, Cheng Z, Li X, Chen G, Hou LA. Insoluble matrix proteins from shell waste for synthesis of visible-light response photocatalyst to mineralize indoor gaseous formaldehyde. J Hazard Mater 2021; 415:125649. [PMID: 33743377 DOI: 10.1016/j.jhazmat.2021.125649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/27/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
HCHO is the most concerned indoor air pollutant that photocatalytic degradation is a feasible approach. To achieve efficient and complete degradation of HCHO under visible light irradiation, heteroatoms are usually doped in TiO2. But using natural materials as a dopant instead of expensive and toxic chemicals to fertilize TiO2 remains challenging. This paper proposes a sustainable and green approach to synthesize an efficient N, Ca co-doped TiO2 photocatalyst (TIMP) by using the insoluble matrix proteins (IMPs) extracted from abalone shell. TIMP-0.8 achieves near completely degradation HCHO within 45 min under visible light at ambient temperature and exhibits superior stability after 7 cycles. TIMP-0.8 has monodispersity with smaller diameter, high porosity, abundant defects and high adsorption affinity for surface hydroxyls compared with pure TiO2. With the assistance of IMPs, the rate-determining step of HCHO degradation changes from -COOH oxidation to spontaneous decomposition of HCO3-, significantly facilitating the elimination and mineralization of HCHO. Overall, IMPs from abalone shell are natural surfactant, bio-templet, and dopant for TiO2 modification, contributing to desirable visible-light photocatalytic performance for HCHO degradation. This paper provides new insight for high-value utilization of waste shell and photocatalytic indoor purification.
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Affiliation(s)
- Wenjun Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Hongdi Yu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Kai Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Fawei Lin
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China.
| | - Cheng Huang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
| | - Beibei Yan
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Zhanjun Cheng
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China
| | - Xiaoqing Li
- Qingdao Junrong Institute of Innovation Engineering Co., Ltd, Qingdao 266000, PR China
| | - Guanyi Chen
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China; School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
| | - Li-An Hou
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China; Xi'an High-Tech Institute, Xi'an 710025, PR China.
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Pang C, Bian SN, Liu CH, Guo LL, Cui Y, Lin F, Yin X, Liu C, Guan K. [The characteristics and change of aeroallergens in children from 2015 to 2020 in a hospital of pediatric in Beijing]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:840-846. [PMID: 34304420 DOI: 10.3760/cma.j.cn112150-20210506-00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of clinical distribution and change of aeroallergens in children with allergic diseases from 2015 to 2020. Methods: Children who visited Capital Institute of Pediatrics affiliated Children's Hospital, suspected of allergic diseases and received serum aeroallergens specific immunoglobulin E (sIgE) test were retrospectively enrolled (1 to 14 years old). sIgE was detected by Phadia1000 system with radioallergosorbent test fluorescent enzyme-linked immunoassay. The characteristics and change of the aeroallergens among the 6 years was analyzed. Enumeration data were expressed by percentage and categorical variables were compared by the independent samples t-test and Pearson χ2 test. Results: In total 4 608 tests (4 575 patients) of children were enrolled, the average age was (5.4±2.9) years old, with the median age of 5.0 years old. 3 176 were boys (68.9%), and 1 432 were girls (31.1%). 4 294 children were from the north of China (93.2%), 295 children were from the south of China (6.4%), and 19 children were from unknown regions (0.4%). In total the most common aeroallergen was mold mixture (1 956/4 457 tests, 43.9%) and Alternaria alternata (276/630 tests, 43.8%), followed by Artemisia (300/889 tests, 33.7%), Humulus scandens (12/38 tests, 31.6%) and grass mixture (909/2 874 tests, 31.6%). Among the 6 years, mold, grass pollen and tree pollen sensitization increased, and mold [38/130 (29.2%) vs 1 574/3 233 (48.7%)], grass pollen [11/77 (14.3%) vs 1 069/3 072 (34.8%)] increased significantly (χ2 was 18.953 and 49.559, respectively, P=0.000). Positive rate of tree pollen increased [1/10 (10.0%) vs 516/2 122 (24.3%)], but did not have statistical significance (χ²=1.111, P=0.292). Dust mite [36/146 (24.7%) vs 321/1 408 (22.8%)] and hair of pets [7/33 (21.2%) vs 321/1 408 (17.1%)] sensitization didn't change greatly (χ2 =0.258, P =0.611; χ2 =0.379, P =0.538). In 2015, the most common aeroallergens was mold (38/130, 29.2%), followed by dust mite (36/146, 24.7%), while in 2020, the most common aeroallergens was still mold (1 574/3 233, 48.7%), with grass pollen (1 069/3 072, 34.8%) and tree pollen (516/2 122, 24.3%) ranked after. Conclusion: Mold might be the most common aeroallergens in allergic children in Beijing area. With time went on, dust mite was gradually exceeded by grass pollen and tree pollen.
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Affiliation(s)
- C Pang
- Department of Otorhinolaryngology Head and Neck Surgery, Capital Institute of Pediatrics Affiliated Children's Hospital,Beijing 100020, China
| | - S N Bian
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730, China
| | - C H Liu
- Department of Allergy, Capital Institute of Pediatricsaffiliated Children's Hospital,Beijing 100020, China
| | - L L Guo
- Department of Information Center, Capital Institute of Pediatricsaffiliated Children's Hospital,Beijing 100020, China
| | - Y Cui
- Department of Information Center, Capital Institute of Pediatricsaffiliated Children's Hospital,Beijing 100020, China
| | - F Lin
- Department of Otorhinolaryngology Head and Neck Surgery, Capital Institute of Pediatrics Affiliated Children's Hospital,Beijing 100020, China
| | - X Yin
- Department of Otorhinolaryngology Head and Neck Surgery, Capital Institute of Pediatrics Affiliated Children's Hospital,Beijing 100020, China
| | - C Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Capital Institute of Pediatrics Affiliated Children's Hospital,Beijing 100020, China
| | - K Guan
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,Beijing 100730, China
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Zemouri A, Lin F, Billuart O, Sacco E, Emmerich J, Priollet P, Yannoutsos A. Prevalence and management of antivitamin K overdose in a hospital setting. J Med Vasc 2021; 46:175-181. [PMID: 34238512 DOI: 10.1016/j.jdmv.2021.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Vitamin K antagonist (VKA) related adverse events are the first cause for iatrogenic events in France, particularly due to the narrow therapeutic margin. The risk of bleeding increases significantly when the INR level is ≥5. The main objective of this study was to assess the prevalence of VKA overdose in a hospital setting (at D2 of hospital entry) and to evaluate physicians' adherence to clinical practice guidelines for the management of VKA overdose according to French National Authority for Health recommendations. METHODS This single-center retrospective observational study consisted in querying the computerized database of a Parisian hospital on 21275INR determinations (3995 patients, 6813 hospital stays) performed between 2013 and 2018. RESULTS An INR level ≥5 was noted during 350 (6%) of the hospital stays, in 331 patients (of whom 57% were women). The mean age of the patient population with an INR≥5 was 81.1 years. Infection, heart failure and renal failure were the most frequent acute medical conditions for hospital admission. Twenty-three patients (7%) had a bleeding complication, 11 of which were major bleeding complications. Older age was associated with the severity of bleeding complications. Fifteen in-hospital deaths (4%) were reported, not related to bleeding events. The management of VKA overdose did not comply with the recommendations in 43% of cases, in particular for the highest INRs (50% of noncompliance for an INR>6.4). Non-compliance with recommendations for VKA overdose was related to: the delay until the INR was checked (44% of cases); the indication for prescribing vitamin K (34% of cases); the dose or route of administration of vitamin K therapy (19% of cases); and the interruption or not of VKA therapy (12% of cases). CONCLUSION The management of VKA overdose in a hospital setting remains non-compliant with the recommendations in almost half of the cases, mainly due to the delayed INR control and inappropriate management of vitamin K therapy. Computerized alert system would be helpful for personalized patient management and improved pharmacovigilance to prevent iatrogenic VKA events.
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Affiliation(s)
- A Zemouri
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - F Lin
- Medical Information Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - O Billuart
- Medical Information Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - E Sacco
- Clinical Research Center, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - J Emmerich
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Inserm UMR 1153-CRESS, Paris, France
| | - P Priollet
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - A Yannoutsos
- Vascular medicine department, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Inserm UMR 1153-CRESS, Paris, France.
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Han D, Achenbach S, Al-Mallah M, Budoff M, Cademartiri F, Maffei E, Callister T, Chinnaiyan K, Chow B, DeLago A, Hadamitzky M, Hausleiter J, Kaufmann P, Villines T, Kim Y, Leipsic J, Feuchtner G, Cury R, Pontone G, Andreini D, Marques H, Rubinshtein R, Rubinshtein R, Chang H, Lin F, Shaw L, Min J, Berman D. Prognostic Significance Of Plaque Location In Non-obstructive Coronary Artery Disease: From The Confirm Registry. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.201] [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: 12/01/2022]
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Takagi H, Leipsic J, Lin F, Shaw L, Lee S, Andreini D, Al-Mallah M, Budoff M, Cademartiri F, Chinnaiyan K, Choi J, Conte E, Marques H, Gonçalves P, Gottlieb I, Hadamitzky M, Maffei E, Pontone G, Shin S, Kim Y, Lee B, Chun E, Sung J, Virmani R, Samady H, Stone P, Berman D, Min J, Narula J, Bax J, Chang H. Association Of Tube Voltage With Plaque Composition On Coronary Ct Angiography: Results From Paradigm Registry. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.297] [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: 11/30/2022]
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Han D, Lin A, Kuronuma K, Tzolos E, Kwan A, Klein E, Andreini D, Bax J, Cademartiri F, Chinnaiyan K, Chow B, Cury R, Feuchtner G, Hadamitzky M, Leipsic J, Maffei E, Marques H, Plank F, Pontone G, Villines T, Al-Mallah M, de Araújo Gonçalves P, danad I, Gransar H, Lu Y, lee J, Baskaran L, Al'Aref S, Budoff M, Samady H, Virmani R, Narula J, Chang H, Min J, Lin F, Shaw L, Slomka P, Dey D, Berman D. Plaque Location And Vessel Geometry On Coronary Computed Tomography Angiography Predict Future Culprit Lesions Associated With Acute Coronary Syndrome: Results From The ICONIC Study. J Cardiovasc Comput Tomogr 2021. [DOI: 10.1016/j.jcct.2021.06.258] [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: 11/30/2022]
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Shen WT, Huang YJ, Zhang Q, Lin F, Wang X, Ye DY, Huang YP. SCH58261, the antagonist of adenosine A2A receptor, alleviates cadmium-induced preeclampsia via sirtiun-1/hypoxia-inducible factor-1α pathway in rats. Eur Rev Med Pharmacol Sci 2021; 24:10941-10953. [PMID: 33215471 DOI: 10.26355/eurrev_202011_23577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To identify the role of adenosine A2A receptor (A2AR) in cadmium-induced preeclampsia (PE) rats and the potential molecular mechanism. PATIENTS AND METHODS The expression of A2AR in placentae obtained from PE women and normal pregnant (NP) women were measured. The pregnant rats were randomly divided into four groups, including NP rats, PE rats, SCH+NP rats, and SCH+PE rats. The 0.125 mg/kg/d CdCl2 was used to establish a PE rat model in PE and SCH+PE rats. SCH58261 was used as the specific antagonist of A2AR with a concentration of 0.2 mg/kg in SCH+NP and SCH+PE rats. The conditions of mother, foetus, and placenta were tested. The placental expression of A2AR, sirtuin-1 (sirt1), and Hypoxia-Inducible Factor-1α (HIF-1α) was measured by Western blot (WB) and immunohistochemistry (IHC) staining. RESULTS A2AR and HIF-1α increased, and sirt1 decreased in placenta in both PE women and cadmium-induced PE rats. After treatment with SCH58261, the sirt1 increased and HIF-1a decreased in cadmium-induced PE rats along with the amelioration of maternal outcomes, foetal and placental growth. CONCLUSIONS This paper firstly revealed that placental A2AR mediated cadmium-induced PE, and A2AR suppression could attenuate placental impairment by acting on the expression of sirt1 and sirt1-mediated regulation of HIF-1α.
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Affiliation(s)
- W-T Shen
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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Lin F, Ordinola-Zapata R, Xu H, Heo YC, Fok A. Laboratory simulation of longitudinally cracked teeth using the step-stress cyclic loading method. Int Endod J 2021; 54:1638-1646. [PMID: 33852743 DOI: 10.1111/iej.13530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022]
Abstract
AIM To simulate in a laboratory setting longitudinal cracking in root filled premolar teeth, using cyclic mechanical fatigue. METHODOLOGY Mesial-occlusal-distal (MOD) cavities were prepared in twenty root filled, single-rooted, mandibular premolars restored with fibre posts and resin composites. The samples were randomly divided into two groups based on the loading approaches: static loading with a crosshead speed of 0.5 mm/min and step-stress cyclic loading (1 Hz) with increasing amplitude. The loads and numbers of cycles to failure were recorded. Micro-CT was also used to identify the fracture modes. Statistical analysis was performed using Student's t-test. The level of significance was set at 0.05. RESULTS The mean fracture loads for the static loading and cyclic loading groups were 769 ± 171 N and 720 ± 92 N, respectively. There was no significant difference between the two groups (P > 0.05). The proportions of longitudinal, cuspal and mixed-mode fractures under cyclic loading were 50%, 20% and 30%, respectively. Longitudinal fractures occurred with larger numbers of cycles and higher average loads per cycle compared with the other fractures. Static loading produced only cuspal fractures. CONCLUSIONS Longitudinally cracked premolar teeth with root fillings were successfully produced using the step-stress cyclic loading method. This provides a more clinically representative methodology for studying cracked teeth in a laboratory setting.
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Affiliation(s)
- F Lin
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology, Beijing, China.,Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, USA
| | - R Ordinola-Zapata
- Division of Endodontics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, USA
| | - H Xu
- Department of Stomatology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Y C Heo
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, USA
| | - A Fok
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, USA
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