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Lu X, Zhang JL, Zhai X, Liu Q, Hang W. A case report on a nasal and oral cavity involving large solitary fibrous tumor and comprehensive review of case literature. Oral Oncol 2024; 150:106715. [PMID: 38340546 DOI: 10.1016/j.oraloncology.2024.106715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 01/21/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024]
Abstract
Solitary fibrous tumor (SFT) represents an uncommon spindle cell sarcoma predominantly situated within soft tissue, with a notably infrequent occurrence in the nasal cavity and paranasal sinuses. In this report, we present a case involving a middle-aged male with a sizable solitary fibrous tumor affecting both the nasal and oral cavities.
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Affiliation(s)
- Xing Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Jin-Ling Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Xiang Zhai
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Qing Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Wei Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China.
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2
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Ke Z, Hang W, Yunsheng L, Wenrui Z, PengDang Z, Ruiyu Z. Ultrahigh-acetone-sensitivity sensor based on Pt-loaded TiO 2porous nanoparticles synthesized via a facile hydrothermal method. Nanotechnology 2023; 35:045502. [PMID: 37871595 DOI: 10.1088/1361-6528/ad0603] [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: 08/30/2023] [Accepted: 10/22/2023] [Indexed: 10/25/2023]
Abstract
A simple hydrothermal method based on an orthogonal experimental design was used to synthesis Pt-loaded TiO2mesoporous nanoparticles in one step. The successful synthesis of Pt-loaded TiO2nanoparticles was demonstrated by various characterization methods. The effects of the modification of Pt and its explanation are described in detail by means of the test results. Through systematic gas-sensing tests, we found that the Pt-loaded TiO2nanoparticles outperform pure TiO2nanoparticles, with a high response value (S= 42.5) to 200 ppm acetone at 260 °C and with a film thickness of 0.45 mm, far superior to that of pure TiO2. The response time (8 s) and recovery time (11 s) of the material are also relatively good with excellent selectivity and long-term stability (30 days). The frequent use of acetone as an organic solution in factories and laboratories, as well as the possibility of making a preliminary diagnosis of diabetes by detecting acetone levels in exhaled gas, make this work promising for environmental monitoring and medical diagnosis.
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Affiliation(s)
- Zhang Ke
- School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, Shanghai, People's Republic of China
| | - Wei Hang
- School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, Shanghai, People's Republic of China
| | - Li Yunsheng
- School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, Shanghai, People's Republic of China
| | - Zhang Wenrui
- School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, Shanghai, People's Republic of China
| | - Zhu PengDang
- School of Mechanical Engineering, Shanghai Institute of Technology, Shanghai 201418, Shanghai, People's Republic of China
| | - Zhang Ruiyu
- School of Cyber Science and Engineering, Wuhan University, Wuhan 430072, Wuhan, People's Republic of China
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3
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Meng Y, Hang W, Zare RN. Microlensed fiber allows subcellular imaging by laser-based mass spectrometry. Nat Protoc 2023; 18:2558-2578. [PMID: 37479826 DOI: 10.1038/s41596-023-00848-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 05/02/2023] [Indexed: 07/23/2023]
Abstract
Mass spectrometry imaging (MSI) enables the chemical mapping of molecules and elements in a label-free, high-throughput manner. Because this approach can be accomplished rapidly, it also enables chemical changes to be monitored. Here, we describe a protocol for MSI with subcellular spatial resolution. This is achieved by using a microlensed fiber, which is made by grinding an optical fiber. It is a universal and economic technique that can be adapted to most laser-based mass spectrometry methods. In this protocol, the output of laser radiation from the microlensed fiber causes laser ablation of the sample, and the resulting plume is mass spectrometrically analyzed. The microlensed fiber can be used with matrix-assisted laser desorption ionization, laser desorption ionization, laser ablation electrospray desorption ionization and laser ablation inductively coupled plasma, in each case to achieve submicroscale imaging of single cells and biological tissues. This report provides a detailed introduction of the microlensed fiber design and working principles, sample preparation, microlensed fiber ion source setup and multiple MSI platforms with different kinds of mass spectrometers. A researcher with a little background (such as a trained graduate student) is able to complete all the steps for the experimental setup in ~2 h, including fiber test, laser coupling and ion source modification. The imaging time spent mainly depends on the size of the imaging area. It is suggested that most existing laser-based MSI platforms, especially atmospheric pressure applications, can achieve breakthroughs in spatial resolution by introducing a microlensed fiber module.
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Affiliation(s)
- Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
- Department of Chemistry, Stanford University, Stanford, CA, USA
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China.
| | - Richard N Zare
- Department of Chemistry, Stanford University, Stanford, CA, USA.
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Liu MF, Ma RX, Cao XB, Zhang H, Zhou SH, Jiang WH, Jiang Y, Sun JW, Yang QT, Li XZ, Sun YN, Shi L, Wang M, Song XC, Chen FQ, Zhang XS, Wei HQ, Yu SQ, Zhu DD, Ba L, Cao ZW, Xiao XP, Wei X, Lin ZH, Chen FH, Shan CG, Wang GK, Ye J, Qu SH, Zhao CQ, Wang ZL, Li HB, Liu F, Cui XB, Ye SN, Liu Z, Xu Y, Cai X, Hang W, Zhang RX, Zhao YL, Yu GD, Shi GG, Lu MP, Shen Y, Zhao YT, Pei JH, Xie SB, Yu LG, Liu YH, Gu SS, Yang YC, Cheng L, Liu JF. [Incidence and prognosis of olfactory and gustatory dysfunctions related to infection of SARS-CoV-2 Omicron strain: a national multi-center survey of 35 566 population]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:579-588. [PMID: 37339898 DOI: 10.3760/cma.j.cn115330-20230316-00117] [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: 06/22/2023]
Abstract
Objective: This cross-sectional investigation aimed to determine the incidence, clinical characteristics, prognosis, and related risk factors of olfactory and gustatory dysfunctions related to infection with the SARS-CoV-2 Omicron strain in mainland China. Methods: Data of patients with SARS-CoV-2 from December 28, 2022, to February 21, 2023, were collected through online and offline questionnaires from 45 tertiary hospitals and one center for disease control and prevention in mainland China. The questionnaire included demographic information, previous health history, smoking and alcohol drinking, SARS-CoV-2 vaccination, olfactory and gustatory function before and after infection, other symptoms after infection, as well as the duration and improvement of olfactory and gustatory dysfunction. The self-reported olfactory and gustatory functions of patients were evaluated using the Olfactory VAS scale and Gustatory VAS scale. Results: A total of 35 566 valid questionnaires were obtained, revealing a high incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain (67.75%). Females(χ2=367.013, P<0.001) and young people(χ2=120.210, P<0.001) were more likely to develop these dysfunctions. Gender(OR=1.564, 95%CI: 1.487-1.645), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), oral health status (OR=0.881, 95%CI: 0.839-0.926), smoking history (OR=1.152, 95%CI=1.080-1.229), and drinking history (OR=0.854, 95%CI: 0.785-0.928) were correlated with the occurrence of olfactory and taste dysfunctions related to SARS-CoV-2(above P<0.001). 44.62% (4 391/9 840) of the patients who had not recovered their sense of smell and taste also suffered from nasal congestion, runny nose, and 32.62% (3 210/9 840) suffered from dry mouth and sore throat. The improvement of olfactory and taste functions was correlated with the persistence of accompanying symptoms(χ2=10.873, P=0.001). The average score of olfactory and taste VAS scale was 8.41 and 8.51 respectively before SARS-CoV-2 infection, but decreased to3.69 and 4.29 respectively after SARS-CoV-2 infection, and recovered to 5.83and 6.55 respectively at the time of the survey. The median duration of olfactory and gustatory dysfunctions was 15 days and 12 days, respectively, with 0.5% (121/24 096) of patients experiencing these dysfunctions for more than 28 days. The overall self-reported improvement rate of smell and taste dysfunctions was 59.16% (14 256/24 096). Gender(OR=0.893, 95%CI: 0.839-0.951), SARS-CoV-2 vaccination status (OR=1.334, 95%CI: 1.164-1.530), history of head and facial trauma(OR=1.180, 95%CI: 1.036-1.344, P=0.013), nose (OR=1.104, 95%CI: 1.042-1.171, P=0.001) and oral (OR=1.162, 95%CI: 1.096-1.233) health status, smoking history(OR=0.765, 95%CI: 0.709-0.825), and the persistence of accompanying symptoms (OR=0.359, 95%CI: 0.332-0.388) were correlated with the recovery of olfactory and taste dysfunctions related to SARS-CoV-2 (above P<0.001 except for the indicated values). Conclusion: The incidence of olfactory and taste dysfunctions related to infection with the SARS-CoV-2 Omicron strain is high in mainland China, with females and young people more likely to develop these dysfunctions. Active and effective intervention measures may be required for cases that persist for a long time. The recovery of olfactory and taste functions is influenced by several factors, including gender, SARS-CoV-2 vaccination status, history of head and facial trauma, nasal and oral health status, smoking history, and persistence of accompanying symptoms.
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Affiliation(s)
- M F Liu
- Graduate School of Beijing University of Chinese Medicine, Beijing 100029, China Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
| | - R X Ma
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - X B Cao
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - S H Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China
| | - W H Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - Y Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - J W Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of USTC, Hefei 230001, China
| | - Q T Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - X Z Li
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y N Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - L Shi
- Department of Rhinology and Allergy, Shandong Provincial ENT Hospital, Shandong University, Jinan 250299, China
| | - M Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University People's Hospital, Beijing 100032, China
| | - X C Song
- Department of Otorhinolaryngology Head and Neck Surgery, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - F Q Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - X S Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H Q Wei
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - S Q Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical University, Shanghai 200065, China
| | - D D Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - L Ba
- Department of Otorhinolaryngology Head and Neck Surgery, Xizang Autonomous Region People's Hospital, Lasa 850000, China
| | - Z W Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - X P Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - X Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou 570311, China
| | - Z H Lin
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, China
| | - F H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - C G Shan
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - G K Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S H Qu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangxi Zhuang Autonomous Region People's Hospital, Nanning 530021, China
| | - C Q Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanxi Medical University Affiliated Second Hospital, Taiyuan 030001, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - H B Li
- Department of Otorhinolaryngology Head and Neck Surgery, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
| | - F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X B Cui
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - S N Ye
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Cai
- Department of Otorhinolaryngology Head and Neck Surgery, Qinghai Provincial People's Hospital, Xining 810000, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - Y L Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G D Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Guizhou Medical University, Guiyang 550004, China
| | - G G Shi
- Department of Otorhinolaryngology Head and Neck Surgery, Shandong Provincial Hospital, Affiliated to Shandong First Medical University, Jinan 250021, China
| | - M P Lu
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y Shen
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Y T Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital of Yinchuan, Yinchuan 750001, China
| | - J H Pei
- Department of Otorhinolaryngology, the First People's Hospital of Yunnan Province, Kunming 650100, China
| | - S B Xie
- Department of Otorhinolaryngology Head and Neck Surgery, Xiangya Hospital Central South University, Changsha 410008, China
| | - L G Yu
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Y H Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - S S Gu
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y C Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - L Cheng
- Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - J F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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Hong HY, Chen TY, Yang QT, Sun YQ, Chen FH, Lou HF, Wang HT, Yu RL, An YF, Liu F, Wang TS, Lu MP, Qiu QH, Wang XD, Chen JJ, Meng CD, Xie ZH, Meng J, Zeng M, Xu CL, Wang Y, Yang YC, Zhang WT, Tang J, Yang YL, Xu R, Yu GD, Shi ZH, Wei X, Ye HP, Sun YN, Yu SQ, Zhang TH, Yong J, Hang W, Xu YT, Xu Y, Tan GL, Sun N, Yang G, Li YJ, Ye J, Zuo KJ, Zhang LQ, Wang XY, Yang AN, Xu YX, Liao W, Fan YP, Li HB. Chinese Expert Consensus on the Use of Biologics in Patients with Chronic Rhinosinusitis (2022, Zhuhai). ORL J Otorhinolaryngol Relat Spec 2023:1-13. [PMID: 37019094 DOI: 10.1159/000529918] [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: 10/31/2022] [Accepted: 02/22/2023] [Indexed: 04/07/2023]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is a common inflammatory disease in otolaryngology, mainly manifested as nasal congestion, nasal discharge, facial pain/pressure, and smell disorder. CRS with nasal polyps (CRSwNP), an important phenotype of CRS, has a high recurrence rate even after receiving corticosteroids and/or functional endoscopic sinus surgery. In recent years, clinicians have focused on the application of biological agents in CRSwNP. However, it has not reached a consensus on the timing and selection of biologics for the treatment of CRS so far. SUMMARY We reviewed the previous studies of biologics in CRS and summarized the indications, contraindications, efficacy assessment, prognosis, and adverse effects of biologics. Also, we evaluated the treatment response and adverse reactions of dupilumab, omalizumab, and mepolizumab in the management of CRS and made recommendations. KEY MESSAGES Dupilumab, omalizumab, and mepolizumab have been approved for the treatment of CRSwNP by the US Food and Drug Administration. Type 2 and eosinophilic inflammation, need for systemic steroids or contraindication to systemic steroids, significantly impaired quality of life, anosmia, and comorbid asthma are required for the use of biologics. Based on current evidence, dupilumab has the prominent advantage in improving quality of life and reducing the risk of comorbid asthma in CRSwNP among the approved monoclonal antibodies. Most patients tolerate biological agents well in general with few major or severe adverse effects. Biologics have provided more options for severe uncontrolled CRSwNP patients or patients who refuse to have surgery. In the future, more novel biologics will be assessed in high-quality clinical trials and applied clinically.
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Affiliation(s)
- Hai-Yu Hong
- Allergy Center, Department of Otolaryngology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Teng-Yu Chen
- Allergy Center, Department of Otolaryngology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China,
| | - Qin-Tai Yang
- Department of Otolaryngology, Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Department of Allergy, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yue-Qi Sun
- Department of Otolaryngology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Feng-Hong Chen
- Department of Otolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hong-Fei Lou
- Department of Otolaryngology, Eye and ENT Hospital of Fudan University, Shanghai, China
| | - Hong-Tian Wang
- Department Allergy and Center of Allergy, Beijing Shijitan Hospital of Capital Medical University, Beijing, China
| | - Rui-Li Yu
- Department Allergy and Center of Allergy, Beijing Shijitan Hospital of Capital Medical University, Beijing, China
| | - Yun-Fang An
- Department of Otolaryngology, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Feng Liu
- Department of Otolaryngology, Head and Neck Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Tian-Sheng Wang
- Department of Otolaryngology, Head and Neck Surgery, Third Xiangya Hospital of Central South University, Changsha, China
| | - Mei-Ping Lu
- Department of Otolaryngology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Qian-Hui Qiu
- Department of Otolaryngology, Head and Neck Surgery, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Xiang-Dong Wang
- Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital of Capital Medical University, Beijing, China
| | - Jian-Jun Chen
- Department of Otolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cui-da Meng
- Department of Otolaryngology, Head and Neck Surgery, China Japan Friendship Hospital of Jilin University, Changchun, China
| | - Zhi-Hai Xie
- Department of Otolaryngology, Head and Neck Surgery, Xiangya Hospital of Central South University, Changsha, China
| | - Juan Meng
- Department of Otolaryngology, Head and Neck Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Ming Zeng
- Department of Otolaryngology, Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng-Li Xu
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Ying Wang
- Department of Rhinology, The First Hospital of Zhengzhou University, Zhengzhou, China
| | - Yu-Cheng Yang
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei-Tian Zhang
- Department of Otolaryngology, Head and Neck Surgery, Sixth People's Hospital of Shanghai Jiaotong University, Shanghai, China
| | - Jun Tang
- Department of Rhinology, The First People's Hospital of Foshan, Sun Yat-Sen University, Foshan, China
| | - Yan-Li Yang
- Department of First Otolaryngology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Rui Xu
- Department of Otolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guo-Dong Yu
- Department of Otolaryngology, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Zhao-Hui Shi
- Department of Otolaryngology, The ENT Hospital of Shenzhen Longgang District, Shenzhen, China
| | - Xin Wei
- Department of Otolaryngology, Head and Neck Surgery, Hainan People's Hospital, Haikou, China
| | - Hui-Ping Ye
- Department of Otolaryngology, Guizhou Province Hospital, Guiyang, China
| | - Ya-Nan Sun
- Department of Otolaryngology, Head and Neck Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shao-Qing Yu
- Department of Otolaryngology, Head and Neck Surgery, Tongji Hospital Affiliated to Tongji University, Shanghai, China
| | - Tian-Hong Zhang
- Department of Otolaryngology, Head and Neck Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jun Yong
- Department of Otolaryngology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Wei Hang
- Department of Otolaryngology, Head and Neck Surgery, Huanhu Hospital of Tianjin City, Tianjin, China
| | - Yuan-Teng Xu
- Department of Otolaryngology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yu Xu
- Department of Otolaryngology, Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Guo-Lin Tan
- Department of Otolaryngology, Head and Neck Surgery, Third Xiangya Hospital of Central South University, Changsha, China
| | - Na Sun
- Department of Otolaryngology, Huadong Hospital of Fudan University, Shanghai, China
| | - Gui Yang
- Department of Otolaryngology, The Central Hospital of Shenzhen Longgang District, Shenzhen, China
| | - You-Jin Li
- Department of Otolaryngology, Shanghai Children's Medical Center of Shanghai Jiaotong University, Shanghai, China
| | - Jing Ye
- Department of Otolaryngology, Head and Neck Surgery, The First Hospital Affiliated to Nanchang University, Nanchang, China
| | - Ke-Jun Zuo
- Department of Otolaryngology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Li-Qiang Zhang
- Department of Otolaryngology, Qilu Hospital of Shandong University, Jinan, China
| | - Xue-Yan Wang
- Department Allergy and Center of Allergy, Beijing Shijitan Hospital of Capital Medical University, Beijing, China
| | - An-Ni Yang
- Allergy Center, Department of Otolaryngology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Ying-Xiang Xu
- Allergy Center, Department of Otolaryngology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Wei Liao
- Allergy Center, Department of Otolaryngology, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Yun-Ping Fan
- Department of Otolaryngology, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China
| | - Hua-Bin Li
- Department of Otolaryngology, Eye and ENT Hospital of Fudan University, Shanghai, China
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Hang W, Song C, Yin Z, Liu Y, Wang Q, Wang Y, Ma Y, Zeng Q. Research on Chemical Mechanical Polishing Technology for Zirconium-Based Amorphous Alloys. Micromachines (Basel) 2023; 14:584. [PMID: 36984991 PMCID: PMC10059127 DOI: 10.3390/mi14030584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Crystallization often occurs in the processing of amorphous alloys, causing the materials lose their excellent properties. The study adopts chemical mechanical polishing of amorphous alloys, presenting the effect of the rotational speed of the polishing turntable, size of abrasive, polishing pressure, and oxidant concentration. The Taguchi method is used to find the best processing parameters, and AFM is used to characterize the machined material surface. At the same time, XPS is used to detect the change of oxide film composition with the addition of oxidant. The results indicate the optimum process parameters: rotational speed of the polishing turntable is 75 r/min, polishing pressure is 28.3 kPa, the size of abrasive is 0.5 μm, and the size of abrasive is a significant factor affecting surface roughness Sa. In addition, as the size of abrasive increases, the material removal rate increases while the surface roughness Sa increases. At pH 10, with an abrasive particle size of 0.5 μm, as the H2O2 concentration increases, the MRR first rapidly decreases at 0.21 wt.% H2O2, and then gradually increases, while the Sa decreases. Furthermore, with the addition of oxidant, the main composition of the surface oxide film changes from oxide to hydroxide, and the contents of Zr4+ and Cu0/Cu1+ elements increase. The findings can provide a feasible chemical mechanical polishing process for zirconium-based amorphous alloys to obtain a satisfactory polishing effect.
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Affiliation(s)
- Wei Hang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Chao Song
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Ziliang Yin
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Ye Liu
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
| | - Qifan Wang
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
- School of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Yinggang Wang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Yi Ma
- Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing 210009, China
| | - Qiaoshi Zeng
- Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China
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7
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Gao C, Wang Y, Zhang H, Hang W. Titania Nanosheet as a Matrix for Surface-Assisted Laser Desorption/Ionization Mass Spectrometry Analysis and Imaging. Anal Chem 2023; 95:650-658. [PMID: 36577518 DOI: 10.1021/acs.analchem.2c01878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Surface-assisted laser desorption/ionization (SALDI) acts as a soft desorption/ionization technique, which has been widely recognized in small-molecule analysis owing to eliminating the requirement of the organic matrix. Herein, titania nanosheets (TiO2 NSs) were applied as novel substrates for simultaneous analysis and imaging of low-mass molecules and lipid species. A wide variety of representative analytes containing amino acids, bases, drugs, peptides, endogenous small molecules, and saccharide-spiked urine were examined by the TiO2 NS-assisted LDI mass spectrometry (MS). Compared with conventional organic matrices and substrates [Ag nanoparticles (NPs), Au NPs, carbon nanotubes, carbon NPs, CeO2 microparticles, and P25 TiO2], the TiO2 NS-assisted LDI MS method shows higher sensitivity and less spectral interference. Repeatability was evaluated with batch-to-batch relative standard deviations for 5-hydroxytryptophan, glucose-spiked urine, and glucose with addition of internal standard, which were 17.4, 14.9, and 2.8%, respectively. The TiO2 NS-assisted LDI MS method also allows the determination of blood glucose levels in mouse serum with a linear range of 0.5-10 mM. Owing to the nanoscale size and uniform deposition of the TiO2 NS matrix, spatial distributions of 16 endogenous small molecules and 16 lipid species from the horizontal section of the mouse brain tissue can be visualized at a 50 μm spatial resolution. These successful applications confirm that the TiO2-assisted LDI MS method has promising prospects in the field of life science.
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Affiliation(s)
- Chaohong Gao
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yubing Wang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Heng Zhang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wei Hang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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8
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Zhang Z, Ma S, Hang L, Xu Z, Hang W. Direct Quantitative Analysis of Fluorine in Solid Samples by Cryogenic Laser Ablation and Ionization Time-of-Flight Mass Spectrometry. Anal Chem 2023; 95:1428-1435. [PMID: 36584352 DOI: 10.1021/acs.analchem.2c04372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The determination of fluorine, the lightest element in halogens, suffers from high ionization potential and spectral interference from water molecules in mass spectrometry. Herein, we introduced a liquid nitrogen cooling unit into the laser ablation and ionization source for the first time to construct a cryogenic laser ablation and ionization time-of-flight mass spectrometry (Cryo-LAI-TOFMS) system. With this system, the interference of water-related species at m/z 19 was effectively eliminated, and fluorine atomization and ionization efficiency could reach 6.3%. A direct quantitative analysis method was developed to determine fluorine contents in phosphate rock, copper ore, industrial byproduct gypsum, stream sediment, and soil. Considering the simplicity, high sensitivity, and low spectral interference of this technique, it can be extended to the determination of fluorine content as low as μg/g in complex solid samples.
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Affiliation(s)
- Zhenjian Zhang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian361005, China
| | - Siyuan Ma
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian361005, China
| | - Le Hang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian361005, China
| | - Zhouyi Xu
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian361005, China
| | - Wei Hang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian361005, China
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9
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Li X, Wang Y, Chen H, Zhao W, Deng Q, Yin T, To S, Sun Z, Shen X, Hang W, Yuan J. CMP Pad Conditioning Using the High-Pressure Micro-Jet Method. Micromachines (Basel) 2023; 14:200. [PMID: 36677261 PMCID: PMC9866616 DOI: 10.3390/mi14010200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
In this study, in order to improve and restore the performance of the polishing pads and reduce the cost of chemical mechanical polishing, three types of material polishing pads, namely, polyurethane, damping cloth, and non-woven fabric, were selected for the experiment. Accordingly, each polishing pad was set up with diamond conditioner and high-pressure micro-jet (HPMJ) conditioning control experiments. Subsequently, the fluctuation ranges of the material removal rate on the three polishing pads were 2.73-3.75 μm/h, 1.38-1.99 μm/h, and 2.36-4.32 μm/h, respectively under the HPMJ conditioning method, while the fluctuation ranges of the material removal rate on the three polishing pads were 1.80-4.14 μm/h, 1.02-2.09 μm/h, and 1.78-5.88 μm/h under the diamond conditioning method. Comparing the polishing pad morphologies under SEM, we observed that the surface of the polishing pad after HPMJ conditioning was relatively clean, and the hole structure was not blocked. Contrastingly, there remained numerous abrasive particles on the surface after the conventional diamond conditioning and the hole structure was blocked. Thus, the HPMJ conditioning technology is better than the traditional diamond conditioning technology. Subsequently, the polishing pad after HPMJ conditioning has a longer service life and a more stable material removal rate than that after traditional diamond conditioning.
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Affiliation(s)
- Xin Li
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Yinggang Wang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Hongyu Chen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Wenhong Zhao
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Qianfa Deng
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Tengfei Yin
- State Key Laboratory of Ultra-precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Suet To
- State Key Laboratory of Ultra-precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China
| | - Zhe Sun
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
| | - Xi Shen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- School of Engineering, Zhejiang Agriculture and Forestry University, Hangzhou 310007, China
| | - Wei Hang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Julong Yuan
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
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Sun L, Zhang G, Li X, Zhang X, Hang W, Tang M, Gao Y. Effects of biochar on the transformation of cadmium fractions in alkaline soil. Heliyon 2023; 9:e12949. [PMID: 36820180 PMCID: PMC9938413 DOI: 10.1016/j.heliyon.2023.e12949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/21/2022] [Accepted: 01/10/2023] [Indexed: 01/14/2023] Open
Abstract
To investigate the chemical properties in the biochar-mediated transformation of soil cadmium (Cd) fractions, the effects of biochar applied at different pyrolysis temperatures on soil Cd-fractions, pH value, and soil organic matter (SOM) were studied through an in-lab incubation experiment on contaminated soil. The results showed that the dissolved organic carbon (DOC) of CsBC300 (biochar prepared at 300 °C) was significantly higher (up to 1.31 times) than that of CsBC600 (biochar prepared at 600 °C). However, CsBC600 was more aromatic. Due to the difference in pyrolysis temperatures, the Cd deactivation mechanism of CsBC300 and CsBC600 was mainly to provide a large amount of organic matter and aromatic functional groups to the soil, respectively. The addition of these two biochar types significantly reduced the acid-extracted Cd content, by 76.56-83.52% and 70.48-76.81%, respectively. Contrastingly, it increased the residual Cd content by 2.26-2.36 and 2.08-2.29 times, respectively, which promoted the Cd transformation from the unstable to the stable state. However, CsBC300 had slightly better deactivation effect than CsBC600 on the 120th day, which was due to the decrease of soil pH and the increased SOM content. These study results can provide a theoretical reference for the remediation of Cd-contaminated alkaline soil.
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Affiliation(s)
- Lianglun Sun
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Guoquan Zhang
- Shandong Provincial Lunan Geology and Exploration Institute, Jining, Shandong, 272100, China
| | - Xinyu Li
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Xinyu Zhang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Wei Hang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China
| | - Meizhen Tang
- School of Life Sciences, Qufu Normal University, Qufu, Shandong, 273165, China,Corresponding author.
| | - Yan Gao
- Shandong Provincial Lunan Geology and Exploration Institute, Jining, Shandong, 272100, China
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11
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Ma S, Leng Y, Li X, Meng Y, Yin Z, Hang W. High spatial resolution mass spectrometry imaging for spatial metabolomics: Advances, challenges, and future perspectives. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116902] [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: 12/27/2022]
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12
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Lu X, Hang W, Liu G. [Progress on diagnosis and treatment of ectopic pituitary adenoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1266-1270. [PMID: 36319137 DOI: 10.3760/cma.j.cn115330-20211021-00676] [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: 06/16/2023]
Affiliation(s)
- X Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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13
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Hang W, Li D, Zou S, Xi C. Visible-Light-Driven Reductive Carboxylation of Benzyl Bromides with Carbon Dioxide Using Formate as Terminal Reductant. J Org Chem 2022; 88:5007-5014. [PMID: 36126282 DOI: 10.1021/acs.joc.2c01840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cheap and available formate can be seen formally as a carbon dioxide radical anion (CO2•-) combined with a hydrogen atom, where the CO2•- is not only a highly active radical but also a very powerful reductant. In this paper, we successfully realized a visible-light-driven carboxylation of benzyl bromides with carbon dioxide to prepare high-value arylacetic acids using potassium formate as a terminal reductant. This reaction is characterized by mild reaction conditions and a wide range of substrates. Moreover, under nitrogen atmosphere, the reaction can also achieve the carboxylation of benzyl bromides utilizing an excess of potassium formate. Mechanistic experiments indicate this carboxylation proceeded through CO2•-, which was generated from the oxidation of 1,4-diazabicyclo[2.2.2]octane with excited photosensitizer Ir(ppy)2(dtbbpy)PF6 in the presence of the potassium formate.
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Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Danyun Li
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Song Zou
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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14
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Jia-Yi Y, Meng-Qiang S, Zhi-Liang C, Yu-Tang X, Hang W, Jian-Qiang Z, Ling H, Qi Z. Effect of foliage applied chitosan-based silicon nanoparticles on arsenic uptake and translocation in rice (Oryza sativa L.). J Hazard Mater 2022; 433:128781. [PMID: 35405587 DOI: 10.1016/j.jhazmat.2022.128781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 01/21/2022] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
In this study, chitosan-based silicon nanoparticles (Chsi-NPs) are prepared that primarily consists of C (57.9%), O (31.3%), N (5.6%), and Si (3.5%) and are 10-180 nm in size. We then explore the effect on the foliage applied on rice planted on soil contaminated with 104 mg·kg-1 arsenic (As); low (3 mg·L-1)and high (15 mg·L-1) doses of the foliar Chsi-NPs are administered during the rice grain filling stage. The results showed that the higher dose foliar Chsi-NPs treatment reduced the As concentration in the grain by 61.2% but increased As concentration in the leaves by 47.1% compared to the control treatment. The foliar spraying of the Chsi-NPs inhibited As transport to the grain by facilitating the attachment of As to the cell wall, with higher doses of the foliar Chsi-NPs treatment increased by 8.7%. The foliar spraying of Chsi-NPs increased the malondialdehyde levels by 18.4%, the catalase activity by 49.0%, and the glutathione activity by 99.0%. These results indicated that the foliar Chsi-NPs application was effective for alleviating As toxicity and accumulation in rice. This study provides a novel method for effectively alleviating As accumulation in rice.
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Affiliation(s)
- Yang Jia-Yi
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China; School of Environment, South China Normal University, Guangzhou 510006, PR China
| | - Sun Meng-Qiang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Chen Zhi-Liang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China.
| | - Xiao Yu-Tang
- School of Environment, South China Normal University, Guangzhou 510006, PR China
| | - Wei Hang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Zhang Jian-Qiang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Huang Ling
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Zou Qi
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
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15
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Hang W, Fan HJ, Li YR, Xiao Q, Jia L, Song LJ, Gao Y, Jin XM, Xiao BG, Yu JZ, Ma CG, Chai Z. Wuzi Yanzong pill attenuates MPTP-induced Parkinson's Disease via PI3K/Akt signaling pathway. Metab Brain Dis 2022; 37:1435-1450. [PMID: 35488941 DOI: 10.1007/s11011-022-00993-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 04/21/2022] [Indexed: 10/18/2022]
Abstract
Wuzi Yanzong Pill (WYP) was found to play a protective role on nerve cells and neurological diseases, however the molecular mechanism is unclear. To understand the molecular mechanisms that underly the neuroprotective effect of WYP on dopaminergic neurons in Parkinson's disease (PD). PD mouse model was induced by the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Gait and hanging tests were used to assess motor behavioral function. Immunofluorescence assay was used to determine TH-positive neurons in substantia nigra (SN). Apoptosis, dopamine and neurotrophic factors as well as expression of PI3K/Akt pathway were detected by TUNEL staining, ELISA and western blotting, respectively. First, it was observed that WYP intervention improved abnormal motor function in MPTP-induced PD model, alleviated the loss of TH+ neurons in SN, and increased dopamine content in brain, revealing a potential protective effect. Second, network pharmacology was used to analyze the possible targets and pathways of WYP action in the treatment of PD. A total of 126 active components related to PD were screened in WYP, and the related core targets included ALB, GAPDH, Akt1, TP53, IL6 and TNF. Particularly, the effect of WYP on PD may be medicate through PI3K/Akt signaling pathway and apoptotic regulation. The WYP treated PD mice had higher expression of p-PI3K, p-Akt and Bcl-2 but lower expression of Bax and cleaved caspase-3 than the non-WYP treated PD mice. Secretion of brain-derived neurotrophic factor (BDNF) and cerebral dopamine neurotrophic factor (CDNF) were also increased in the treated mice. WYP may inhibit apoptosis and increase the secretion of neurotrophic factor via activating PI3K/ Akt signaling pathway, thus protecting the loss of dopamine neurons in MPTP-induced PD mice.
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Affiliation(s)
- Wei Hang
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Hui-Jie Fan
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Yan-Rong Li
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Qi Xiao
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Lu Jia
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Li-Juan Song
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Yao Gao
- Department of Psychiatry, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, 030001, China
| | - Xiao-Ming Jin
- Department of Anatomy and Cell Biology, Department of Neurological Surgery, Spinal Cord and Brain Injury Research Group, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Bao-Guo Xiao
- Huashan Hospital, Fudan University, Shanghai, 200025, China
| | - Jie-Zhong Yu
- Institute of Brain Science, Shanxi Datong University, Datong, 037009, China
| | - Cun-Gen Ma
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China.
- Institute of Brain Science, Shanxi Datong University, Datong, 037009, China.
| | - Zhi Chai
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine/Neurobiology Research Center, Shanxi University of Chinese Medicine, Jinzhong, 030619, China.
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16
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Xu L, Wang L, Chen H, Wang X, Chen F, Lyu B, Hang W, Zhao W, Yuan J. Effects of pH Values and H2O2 Concentrations on the Chemical Enhanced Shear Dilatancy Polishing of Tungsten. Micromachines 2022; 13:mi13050762. [PMID: 35630229 PMCID: PMC9146294 DOI: 10.3390/mi13050762] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 11/25/2022]
Abstract
In order to obtain tungsten with great surface qualities and high polishing efficiency, a novel method of chemical enhanced shear dilatancy polishing (C-SDP) was proposed. The effects of pH values and H2O2 concentrations on the polishing performance of tungsten C-SDP were studied. In addition, the corrosion behaviors of tungsten in solutions with different pH values and H2O2 concentrations were analyzed by electrochemical experiments, and the valence states of elements on the tungsten surface were analyzed by XPS. The results showed that both pH values and H2O2 concentrations had significant effects on tungsten C-SDP. With the pH values increasing from 7 to 12, the MRR increased from 6.69 µm/h to 13.67 µm/h. The optimal surface quality was obtained at pH = 9, the surface roughness (Ra) reached 2.35 nm, and the corresponding MRR was 9.71 µm/h. The MRR increased from 9.71 µm/h to 34.95 µm/h with the H2O2 concentrations increasing from 0 to 2 vol.%. When the concentration of H2O2 was 1 vol.%, the Ra of tungsten reached the lowest value, which was 1.87 nm, and the MRR was 26.46 µm/h. This reveals that C-SDP technology is a novel ultra-precision machining method that can achieve great surface qualities and polishing efficiency of tungsten.
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Affiliation(s)
- Liang Xu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
| | - Lin Wang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
| | - Hongyu Chen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
- Correspondence:
| | - Xu Wang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Fangyuan Chen
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
| | - Binghai Lyu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Wei Hang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Wenhong Zhao
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
| | - Julong Yuan
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310023, China; (L.X.); (L.W.); (X.W.); (F.C.); (B.L.); (W.H.); (W.Z.); (J.Y.)
- Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education and Zhejiang Province, Zhejiang University of Technology, Hangzhou 310023, China
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17
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Zhang Q, Xue K, Ma Y, Zhai X, Liu G, Zhang HX, Yu W, Hang W. [Analysis and management of delayed cerebrospinal fluid rhinorrhea after invasive pituitary adenoma surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:301-307. [PMID: 35325942 DOI: 10.3760/cma.j.cn115330-20210520-00285] [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: 06/14/2023]
Abstract
Objective: To investigate the related factors and treatments of delayed cerebrospinal fluid rhinorrhea (CFR) after invasive pituitary adenoma (IPA) surgery. Methods: One hundred and forty-two patients with IPA treated in Tianjin Huanhu Hospital from January 2014 to January 2019 were analyzed retrospectively, including 62 males and 80 females, aging from 38 to 67 years. The clinical data of patients before and after operation were collected. All patients with postoperative CFR underwent endoscopic CFR repair. During the operation, residual or recurrent pituitary adenomas were resected, the dura around the leak was enlarged and the necrotic tissue was removed. For those who still had fluid leakage after repair, the necrotic tissue was cleaned up, the leakage was filled and reinforced under endoscopy. Endoscopic rhinorrhea repair was performed if necessary. The cerebrospinal fluid leak was repaired with multi-layer materials. The related risk factors of delayed CFR after operation were analyzed. SPSS 19.0 software was used for statistical analysis. Results: Among the 142 patients in this group, 64 cases underwent total tumor resection and 78 cases underwent non-total tumor resection. They were followed up for 6 to 72 months. Thirty-one cases had delayed CFR, with an incidence of 21.83%, and occurred between 1 and 5 years postoperatively, with an average of 2.4 years. All 31 patients with delayed CFR underwent endoscopic CFR repair. The nasal endoscopy was rechecked at 2 weeks, 1 month, 3 months and 6 months after operation. Twenty-eight patients were repaired successfully after 1 operation, while 2 patients after 2 operations and 1 patient after 3 operations. These patients were followed up for 6 to 60 months, and no CFR occurred again. Univariate analysis showed that the degree of tumor resection, recurrence, size, texture, postoperative radiotherapy and operator experience were the risk factors of delayed CFR (all P<0.05). Multivariate analysis showed that the degree of tumor resection and recurrence were the highest independent risk factors for postoperative CFR, and tumor size, texture, postoperative radiotherapy and operator experience were the independent risk factors in this study. Conclusions: Delayed CFR after IPA is related to the degree of tumor resection, recurrence, size, texture, postoperative radiotherapy and the operator experience. It is necessary to completely remove the tumor under endoscope, to expand resection of the dura and necrotic tissue around the leak, to repair the defect with multi-layer materials, to follow-up closely and to repair timely after operation.
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Affiliation(s)
- Q Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - K Xue
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Y Ma
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - X Zhai
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - H X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - W Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Wei Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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18
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Wang T, Bi M, Wu J, Li X, Meng Y, Yin Z, Hang W. Single-Cell Mass Spectrometry Imaging of TiO2 Nanoparticles with Subcellular Resolution. Chinese Journal of Analytical Chemistry 2022. [DOI: 10.1016/j.cjac.2022.100085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Li X, Hang L, Wang T, Leng Y, Zhang H, Meng Y, Yin Z, Hang W. Nanoscale Three-Dimensional Imaging of Drug Distributions in Single Cells via Laser Desorption Post-Ionization Mass Spectrometry. J Am Chem Soc 2021; 143:21648-21656. [PMID: 34913337 DOI: 10.1021/jacs.1c10081] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Exploring the three-dimensional (3D) drug distribution within a single cell at nanoscale resolution with mass spectrometry imaging (MSI) techniques is crucial in cellular biology, yet it remains a great challenge due to limited lateral resolution, detection sensitivities, and reconstruction problems. Herein, a microlensed fiber laser desorption post-ionization time-of-flight mass spectrometer (MLF-LDPI-TOFMS) was developed for the 3D imaging of two anticancer drugs within single cells at a 500 × 500 × 500 nm3 voxel resolution. Nanoscale desorption was obtained with a microlensed fiber (MLF), and a 157 nm post-ionization laser was introduced to enhance the ionization yield. Furthermore, a new type of alignment method for 3D reconstruction was developed on the basis of our embedded uniform circular polystyrene microspheres (PMs). Our findings demonstrate that this 3D imaging technique has the potential to provide information about the 3D distributions of specific molecules at the nanoscale level.
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Affiliation(s)
- Xiaoping Li
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Le Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tongtong Wang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yixin Leng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Heng Zhang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhibin Yin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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20
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Hang W, Liang N, Liu Y, Xi C. Cobalt-Catalyzed Highly Regioselective Three-Component Arylcarboxylation of Acrylate with Aryl Bromides and Carbon Dioxide. ChemSusChem 2021; 14:4941-4946. [PMID: 34622566 DOI: 10.1002/cssc.202101963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Cobalt-catalyzed regioselective three-component arylcarboxylation of acrylate with aryl bromides and carbon dioxide has been developed. The reaction is carried out by using cobalt chloride as a precatalyst and zinc powder as a reducing reagent under CO2 (1 atm) at 40 °C. A range of aryl bromides are used for this reaction, leading to a series of valuable carboxylic acids with high regioselectivity and functional-group compatibility. Mechanistic experiments and DFT calculations indicate that this arylcarboxylation reaction involves the reaction of CO2 with a cobalt enolate intermediate to form the C-C bond.
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Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Nianjie Liang
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Yuzhou Liu
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
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21
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Wang M, An X, Li Y, Li N, Hang W, Liu G. EMS-Net: Enhanced Multi-Scale Network for Polyp Segmentation. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:2936-2939. [PMID: 34891860 DOI: 10.1109/embc46164.2021.9630787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
In recent years, polyp segmentation plays an important role in the diagnosis and treatment of colorectal cancer. Accurate segmentation of polyps is very challenging due to different sizes, shapes, and unclear boundaries. Making full use of multi-scale contextual information to segment polyps may bring better results. In this paper, we propose an enhanced multi-scale network for accurate polyp segmentation. It is composed of a multi-scale connected baseline (U-Net+++), a multi-scale backbone (Res2Net), three Receptive Field Block (RFB) modules, and four Local Context Attention (LCA) modules. Specifically, the baseline's multi-scale skip connections can aggregate features in both low-level and high-level layers. We have evaluated our model on three publicly available and challenging datasets (EndoScene, CVC-ClinicDB, Kvasir-SEG). Compared with other methods, our model achieves SOTA performance. It is noteworthy that our model is the only network that has achieved over 0.900 mean Dice on EndoScene and CVC-ClinicDB.
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22
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Chai Z, Fan HJ, Li YR, Sun MY, Xiao WS, Hang W, Huang JJ, Yu JZ, Xiao BG, Ma CG. The regulatory effect of Wuzi Yanzong pill on UPR signaling pathway in Parkinson's disease mice. J Neurol Sci 2021. [DOI: 10.1016/j.jns.2021.119494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Li Z, Meng T, Hang W, Cao X, Ni H, Shi Y, Li Q, Xiong Y, He N. Regulation of glucose and glycerol for production of docosahexaenoic acid in Schizochytrium limacinum SR21 with metabolomics analysis. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Hang W, Guo HM, Wu QL, Yan H, Liu G, Gao M. MicroRNA-203a-3p affects the biological characteristics of nasopharyngeal carcinoma by targeting vascular endothelial growth factor-C. J Physiol Pharmacol 2021; 72. [PMID: 35072651 DOI: 10.26402/jpp.2021.4.12] [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] [Received: 05/19/2021] [Accepted: 10/30/2021] [Indexed: 06/14/2023]
Abstract
Nasopharyngeal carcinoma (NPC) has a high incidence in Southeast Asia and China. This study aims to investigate the effect of miR-203a-3p and vascular endothelial growth factor-C (VEGF-C) on nasopharyngeal carcinoma. In this study, we investigate the transfection of miR-203a-3p mimics and the ability of miR-203a-3p to inhibit in nasopharyngeal carcinoma cell line 5-8F and C666-1, the expression levels of protein AKT, p-AKT in VEGF-C and the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) signal pathway by plate clone formation experiment, flow cytometer PI staining method, transwell cell experiment, vasculogenic mimicry experiment, and Western blot. The results showed that miR-203a-3p in the nasopharyngeal carcinoma cell line significantly decreased, while VEGF-C in nasopharyngeal carcinoma tissues and cell lines significantly increased. Furthermore, miR-203a-3p inhibited the proliferation of nasopharyngeal carcinoma cells and blocked the cell cycle of nasopharyngeal carcinoma in the G0/G1 phase, reduced the vasculogenic phenomena and epithelial-mesenchymal transition of nasopharyngeal carcinoma cells, and effectively inhibited the growth of nasopharyngeal carcinoma in vivo. The low expression of VEGF-C can inhibit the proliferation, vasculogenic mimicry, and epithelial-mesenchymal transition of nasopharyngeal carcinoma cells. We found that miR-203a-3p was expressed to a low degree in nasopharyngeal carcinoma. Furthermore, miR-203a-3p regulated the PI3K/AKT signal pathway by downregulating the expression of VEGF-C, thereby inhibiting the proliferation, migration, invasion, vasculogenic mimicry, epithelial-mesenchymal transition, and other malignant biological characteristics of nasopharyngeal carcinoma cells.
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Affiliation(s)
- W Hang
- Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China.
- Department of National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, China
| | - H-M Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, China
| | - Q-L Wu
- Institute of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China
| | - H Yan
- Institute of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, China
| | - M Gao
- Department of Thyroid and Neck Tumor, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China.
- Department of National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Tianjin's Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Key Laboratory of Cancer Prevention and Therapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
- Department of Breast and Thyroid Surgery, Tianjin Union Medical Center, Tjanjin, China
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25
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Lu X, Hang W, Liu H, Xue K, Zhang X, Liu G. [Experience in the diagnosis and treatment of the postoperative complications of craniopharyngiomas through expanded endoscopic endonasal transsphenoidal approach]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 35:505-510. [PMID: 34304508 PMCID: PMC10128607 DOI: 10.13201/j.issn.2096-7993.2021.06.005] [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] [Received: 01/10/2021] [Indexed: 11/12/2022]
Abstract
Objective:To summarize the clinical characteristics of the postoperative complications of surgical resection of craniopharyngiomas through expanded endoscopic endonasal transsphenoidal approach (EEETA). Strategies for prevention and management were also discussed. Methods:The clinical data of the patients who were treated through EEETA were retrospectively reviewed. The occurrence of post-operative complications were recorded. Results:Partial removal of the tumors were accomplished in 11 cases and subtotal removal in 4 cases. The major postoperative complications were anterior pituitary hypofunction(11/15), diabetes insipidus(8/15), epistaxis(3/15), cerebrospinal fluid rhinorrhea(1/15). The cases were treated symptomatically or by re-operation. Of all the cases,10 patients were improved,1 patient had drowsiness,3 suffered from multiple organ failure,and 1 patient died. Conclusion:To prevent and reduce the postoperative complications of EEETA, first of all, it is essential to evaluate the need for surgical intervention and perform a comprehensive preoperative assessment. Critical nerves and vessels should be preserved carefully during operation for the sake of avoiding injuries normal pituitary and hypothalamus. Furthermore, reconstruction of the skull base is critical. The standard procedure of nasal endoscopy and the experience of the surgeons are quite significant, while the operation needs multidisciplinary collaborations.
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Affiliation(s)
- Xing Lu
- Department of Otorhinolaryngology Head and Neck Surgery,Tianjin Huanhu Hospital,Tianjin,300350,China
| | - Wei Hang
- Department of Otorhinolaryngology Head and Neck Surgery,Tianjin Huanhu Hospital,Tianjin,300350,China
| | - Hui Liu
- Department of Radiology,Tianjin Huanhu Hospital
| | - Kai Xue
- Department of Endoscopic Skull Base Surgery,Tianjin Huanhu Hospital
| | | | - Gang Liu
- Department of Otorhinolaryngology Head and Neck Surgery,Tianjin Huanhu Hospital,Tianjin,300350,China
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Xu R, Lam K, Pan H, Qiu M, Zheng Y, Liu Z, Tan T, Hang W. P-18 Phase Ib study of niraparib plus tebotelimab in patients with advanced or metastatic gastric cancer after prior treatment failure. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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27
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Lin R, Lu Q, Lin Z, Hang W, Huang B. Laser-induced acoustic desorption coupled with electrospray ionization mass spectrometry for rapid qualitative and quantitative analysis of glucocorticoids illegally added in creams. Analyst 2021; 145:6625-6631. [PMID: 32789335 DOI: 10.1039/d0an00962h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a strategy for the coupling of laser-induced acoustic desorption (LIAD) with electrospray ionization (ESI) mass spectrometry. Different from desorption electrospray ionization (DESI) or paper spray ionization (PSI), the technique decouples the desorption of analytes from the subsequent ionization. The desorption is initiated by a shock wave induced in 10 μm titanium (Ti) foil coated with the sample, irradiated from the rear side by a laser beam, and then the desorbed neutral analytes are post-ionized by ESI and finally characterized by quadrupole/time-of-flight (Q-TOF) mass spectrometry (MS). Separating desorption from the ionization event makes this technique flexible and decreases the matrix effect and salt effect. Various kinds of common creams containing glucocorticoids are investigated using LIAD/ESI/MS without sample pretreatment. The results show that volatile and nonvolatile analytes in creams are sampled simultaneously by LIAD, providing a convenient way for high-throughput screening of the target compounds. In addition, quantitation of glucocorticoids in creams was performed by analyzing samples with decreasing concentrations of analytes (dexamethasone (20 μg g-1) used as an internal standard (IS)), until no more signal was observed. The limits of detection (LODs) of glucocorticoids were determined experimentally to be ranging from 0.7 μg g-1 for triamcinolone acetonide to 10 μg g-1 for beclomethasone dipropionate, which are two orders of magnitude lower than the regular usage of glucocorticoids (beclomethasone dipropionate 0.25 mg g-1, triamcinolone acetonide 0.25 mg g-1). Overall, LIAD/ESI/MS is demonstrated to be of great practical importance for rapid qualitative and quantitative analysis of glucocorticoids in creams, and good sensitivity can be achieved without tedious sample pretreatment and time-consuming chromatographic separation, irrespective of the presence of complex matrices.
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Affiliation(s)
- Rongkun Lin
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Qiao Lu
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Zheng Lin
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Wei Hang
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Benli Huang
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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28
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Zhou YL, Guo ZJ, Liu F, Hang W, Kong M, Zhao CD, Liu AT, Peng M, Wang QL, Wang CW. [Geochemical Survey Method of Land Quality in Land Parcel Scale City: A Case Study of the Initial Area of the Xiong'an New District]. Huan Jing Ke Xue 2021; 42:1989-2002. [PMID: 33742834 DOI: 10.13227/j.hjkx.202008133] [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: 11/22/2022]
Abstract
In order to evaluate the land quality geochemical survey achievement in the service of the accurate management of urban land resources, the initial area of the Xiong'an New District as urbanization pathfinder in China is chosen as the research subject. The sample points were set by differential classification, and the spatial interpolation accuracy of the soil elements at a plot scale and a quantitative assessment of the consistency of the land plot (pattern spot) prediction evaluation were studied under the conditions of different sampling densities. The regional geochemical variation values randomly distributed on the plane can be reflected quantitatively by differential classification sampling, which can meet the basic demand of the quality attribute of a single plot (map spot) by the accurate management of urban land resources. The spatial variability of soil elements is mostly middle to moderate, and Cd, Cu, Pb, Hg, Se, N, P, and other elements of high spatial variability are affected by human industrial and agricultural production activities. Under the same sampling density, the larger the element variation coefficient, the worse the spatial interpolation accuracy. Although the interpolation accuracy of the same element index is affected by the sampling density, the increase in the sampling density could not identify the continuous component on the structure of the soil element content. The soil environment is clean, and the heavy metal content is lower than the GB15618-2018 standard. The interpolation results are basically consistent with the grading results of the measured values, while the contents of N, P, and K of the nutrient indices vary greatly, and the predicted and measured geochemical grades of the plots (map spot) differ substantially under the influence of factors such as human disturbance and spatial variability. The quantitative evaluation of the six different sampling densities indicates that the 16 points·km-2 sampling density adopted in the geochemical survey and evaluation of urban land quality can satisfy the needs of an accurate control of urban land resources in the study area and similar areas. The research can provide key technologies to support and serve the accurate management of urban land resources for geochemical surveys and the evaluation of land quality in land parcel scale cities.
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Affiliation(s)
- Ya-Long Zhou
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Zhi-Juan Guo
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Fei Liu
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Wei Hang
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Mu Kong
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Chuan-Dong Zhao
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Ai-Tao Liu
- Geological Survey Institution of Hebei Province, Shijiazhuang 050081, China
| | - Min Peng
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Qiao-Lin Wang
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
| | - Cheng-Wen Wang
- Institute of Geophysical & Geochemical Exploration, Chinese Academy of Geological Sciences, Langfang 065000, China.,Research Center of Geochemical Survey and Assessment on Land Quality, China Geological Survey, Langfang 065000, China.,Key Laboratory of Geochemical Cycling of Carbon and Mercury in the Earth's Critical Zone, Chinese Academy of Geological Sciences, Langfang 065000, China
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Zhang Q, Shi MG, Liu G, Tong XG, Zhang JL, Yu HX, Hang W. [Analysis on endoscopic endonasal approach combined with the frontotemporal orbitozygomatic approach under the microscope for skull base tumor with intra and extra-cranial involvement]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:33-40. [PMID: 33472300 DOI: 10.3760/cma.j.cn115330-20200803-00645] [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 evaluate the application of combination use of endoscopic endonasal approach combined with the frontotemporal orbitozygomatic approach microscopically in skull base tumor with intra and extra-cranial involvement. Methods: A total of 7 patients (4 males and 3 females, aging from 27 to 65 years old, with a medium age of 48) undergone complicated skull base surgeries via endoscopic endonasal approach combined with the frontotemporal orbitozygomatic approach microscopically from May 2016 to January 2018 were reviewed respectively. The patients included 2 cases of recurrent invasive pituitary adenoma, 3 cases of basal skull meningiomas, 1 case of clivus chondrosarcoma, and 1 case of recurrent nasopharyngeal carcinoma. The lesion extensively infiltrated nasal cavity, extending to the paranasal sinus, bilateral cavernous sinus, sellar region, suprasellar, superior clivus, temporal lobe, pterygopalatine fossa, infratemporal fossa and important intracranial vessels. All the 7 patients were treated under general anesthesia by endoscopic endonasal approach combined with frontotemporal orbitozygomatic approach under the microscope. Total excision rate, intraoperative and postoperative complications and postoperative curative effect were observed. All of them were followed up for 6 to 12 months. The Glasgow Outcome Scale (GOS) was used to evaluate the prognosis. Result: Total tumor removal was performed in 5 cases, subtotal removel in 2 cases. There was no complication during the operation. Postoperative severe complications occurred in 2 cases, including 1 case of cerebrospinal fluid rhinorrhea and intracranial infection, which was cured by lumbar cistern drainage and intrathecal injection; 1 case occurred oculomotor nerve paralysis, which recovered during follow-up. Postoperative complications occurred in 1 case of trochlear nerve dysfunction, 2 cases of facial numbness, and 1 case of tinnitus. During follow-up, all patients recovered to varying degrees. There was no bleeding and death after the operation. No tumor recurred during the follow-up period. All patients were recovered well with GOS grade Ⅳ-Ⅴ. Conclusions: Endoscopic transnasal approach combined with microscopic frontotemporal orbitozygomatic approach can remove tumors in one stage, reduce surgical complications and improve surgical effect. It has good application prospects and is suitable for excising complex intracranial and extracranial communicating tumors of widely involving sellar, clivus and petrous apex area.
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Affiliation(s)
- Q Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - M G Shi
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - X G Tong
- Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - J L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - H X Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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Cui H, Zhao C, Xu W, Zhang H, Hang W, Zhu X, Ji C, Xue J, Zhang C, Li R. Characterization of type-2 diacylglycerol acyltransferases in Haematococcus lacustris reveals their functions and engineering potential in triacylglycerol biosynthesis. BMC Plant Biol 2021; 21:20. [PMID: 33407140 PMCID: PMC7788937 DOI: 10.1186/s12870-020-02794-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 12/09/2020] [Indexed: 05/05/2023]
Abstract
BACKGROUND Haematococcus lacustris is an ideal source of astaxanthin (AST), which is stored in oil bodies containing esterified AST (EAST) and triacylglycerol (TAG). Diacylglycerol acyltransferases (DGATs) catalyze the last step of acyl-CoA-dependent TAG biosynthesis and are also considered as crucial enzymes involved in EAST biosynthesis in H. lacustris. Previous studies have identified four putative DGAT2-encoding genes in H. lacustris, and only HpDGAT2D allowed the recovery of TAG biosynthesis, but the engineering potential of HpDGAT2s in TAG biosynthesis remains ambiguous. RESULTS Five putative DGAT2 genes (HpDGAT2A, HpDGAT2B, HpDGAT2C, HpDGAT2D, and HpDGAT2E) were identified in H. lacustris. Transcription analysis showed that the expression levels of the HpDGAT2A, HpDGAT2D, and HpDGAT2E genes markedly increased under high light and nitrogen deficient conditions with distinct patterns, which led to significant TAG and EAST accumulation. Functional complementation demonstrated that HpDGAT2A, HpDGAT2B, HpDGAT2D, and HpDGAT2E had the capacity to restore TAG synthesis in a TAG-deficient yeast strain (H1246) showing a large difference in enzymatic activity. Fatty acid (FA) profile assays revealed that HpDGAT2A, HpDGAT2D, and HpDGAT2E, but not HpDGAT2B, preferred monounsaturated fatty acyl-CoAs (MUFAs) for TAG synthesis in yeast cells, and showed a preference for polyunsaturated fatty acyl-CoAs (PUFAs) based on their feeding strategy. The heterologous expression of HpDGAT2D in Arabidopsis thaliana and Chlamydomonas reinhardtii significantly increased the TAG content and obviously promoted the MUFAs and PUFAs contents. CONCLUSIONS Our study represents systematic work on the characterization of HpDGAT2s by integrating expression patterns, AST/TAG accumulation, functional complementation, and heterologous expression in yeast, plants, and algae. These results (1) update the gene models of HpDGAT2s, (2) prove the TAG biosynthesis capacity of HpDGAT2s, (3) show the strong preference for MUFAs and PUFAs, and (4) offer target genes to modulate TAG biosynthesis by using genetic engineering methods.
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Affiliation(s)
- Hongli Cui
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Chunchao Zhao
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Wenxin Xu
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Hongjiang Zhang
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Wei Hang
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Xiaoli Zhu
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Chunli Ji
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Jinai Xue
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Chunhui Zhang
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
| | - Runzhi Li
- College of Agriculture, Institute of Molecular Agriculture and Bioenergy, Shanxi Agricultural University, Taigu, 030801 Shanxi China
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Yi Y, Hang W, Xi C. Recent Advance of Transition-Metal-Catalyzed Tandem Carboxylation Reaction of Unsaturated Hydrocarbons with Organometallic Reagents and CO2. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202007013] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Liu B, Sun Y, Hang W, Wang X, Xue J, Ma R, Jia X, Li R. Characterization of a Novel Acyl-ACP Δ 9 Desaturase Gene Responsible for Palmitoleic Acid Accumulation in a Diatom Phaeodactylum tricornutum. Front Microbiol 2020; 11:584589. [PMID: 33391203 PMCID: PMC7772203 DOI: 10.3389/fmicb.2020.584589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 11/17/2020] [Indexed: 12/23/2022] Open
Abstract
Palmitoleic acid (16:1Δ9) possesses a double bond at the seventh carbon atom from methyl end of the acyl chain and belongs to unusual ω-7 monounsaturated fatty acids with broad applications in food, pharmaceuticals, cosmetics, biofuel, and other industries. This high-value fatty acid accumulates up to >40% of total lipid in the marine diatom Phaeodactylum tricornutum. The present study was conducted to determine the key gene responsible for 16:1Δ9 biosynthesis in this unicellular alga. A new full-length cDNA and genomic DNA encoding acyl-ACP Δ9 desaturase (PtAAD) were isolated from P. tricornutum cells. Expression levels of PtAAD gene under normal and stress culture conditions were both positively correlated with 16:1Δ9 accumulation, implying its potential role for fatty acid determination. Functional complementation assay of a yeast mutant strain BY4839 evidenced that PtAAD could restore the synthesis of unsaturated fatty acid, especially generating high levels of 16:1Δ9. Further transient expression of PtAAD gene in Nicotiana benthamiana leaves was accompanied by the accumulation of 16:1Δ9, which was absent from control groups. Three-dimensional structure modeling studies showed that functional domain of PtAAD contained three variant amino acids (F160, A223, and L156), which may narrow the space shape of substrate-binding cavity to ensure the entry of 16:0-ACP. Consistent with this prediction, the mutated version of PtAAD gene (F160L, A223T, and L156M) in N. benthamiana systems failed to accumulate 16:1Δ9, but increased levels of 18:1Δ9. Taken together, PtAAD exhibits a strong enzymatic activity and substrate preference for 16:0-ACP, acting as the key player for high biosynthesis and accumulation of 16:1Δ9 in this alga. These findings provide new insights for better understanding the palmitoleic acid and oil biosynthetic mechanism in P. tricornutum, indicating that PtAAD gene may have practical applications for enriching palmitoleic acid and oil yield in other commercial oleaginous algae and crops.
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Affiliation(s)
- Baoling Liu
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China.,College of Plant Protection, Shanxi Agricultural University, Jinzhong, China
| | - Yan Sun
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Wei Hang
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Xiaodan Wang
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Jinai Xue
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Ruiyan Ma
- College of Plant Protection, Shanxi Agricultural University, Jinzhong, China
| | - Xiaoyun Jia
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
| | - Runzhi Li
- College of Agriculture, Shanxi Agricultural University, Jinzhong, China
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Liu H, Zhang Q, Hang W, Liu G. [Analysis of correlation between magnetic resonance imaging features and prognosis of invasive pituitary adenoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:926-933. [PMID: 33036507 DOI: 10.3760/cma.j.cn115330-20200804-00646] [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 application of conventional nuclear magnetic resonance imaging, diffusion-weighted imaging and dynamic contrast-enhanced imaging in invasive pituitary adenoma, and to study the correlation between its imaging features and prognosis. Methods: The imaging manifestations (including T1WI, T2WI, ADC and dynamic contrast-enhanced MR), clinical features and pathological data of 47 cases of invasive pituitary adenomas (IPA) in Tianjin Huanhu Hospital from June 2017 to June 2018 were retrospectively analyzed, and compared with 16 cases of non-invasive pituitary adenoma (NIPA). The differences in tumor/white matter signal intensity ratio on T1WI and T2WI images, MR signs, ADC values and time signal-curve type, peak enhancement time and average enhancement rate between the two groups were observed. Postoperative MR enhanced scan and related hormone results were reviewed to evaluate the prognosis of all patients. Logistic stepwise regression analysis was used to analyze the relationship between IPA imaging characteristics and prognosis. Results: The location, shape, size, Knosp classification and ADC value of tumors were significantly different between IPA and NIPA groups (χ(2) values were 41.344, 21.818, 28.596 respectively, t values were 5.869, 11.720 respectively, all P<0.05). The majority of T1WI, T2WI and enhanced heterogeneous signals occurred in IPA group (P<0.05). IPA showed two-stage enhancement characteristics of rapid enhancement and fast subsidence phase. There were significant differences in peak enhancement time between intrasellar tumors and invasive cavernous sinus tumors. There were no significant differences in signal intensity of T1 and diffusion limitation and two-stage enhancement characteristics between the two groups (all P>0.05). There was a significant correlation between the ratio of tumor body/white matter signal on T2WI, ADC value and the constitution of invasive pituitary tumors (all P<0.05). In IPA, 9 cases(19%) were totally resected, 25 cases(53%) subtotally resected and 13 cases(28%) partially resected. Postoperative symptoms were improved in 29 cases(62%), alleviated in 6 cases(13%), unhealed in 3 cases(6%), assisted drug therapy in 7 cases and radiotherapy in 15 cases. All cases were followed up for 7 to 16 months, with a median time of 12.5 months. Eight cases recurred, with a recurrence rate of 17%. There were significant differences in the total/subtotal resection rate, the improvement rate of symptoms and the need for adjuvant treatment among IPA with different texture (all P<0.05).Knosp grade, tumor size and the ratio of tumor body to white matter on T2WI were associated with IPA recurrence (all P<0.05). Conclusion: It is helpful to diagnose IPA by analyzing the distribution, shape, size, ADC value and signal difference of tumors in sella turcica region through MR and DWI signs. Combined with dynamic contrast enhancement features, the invasion of IPA and its surrounding tissues can be early judged, and the texture of the tumors can be assessed by imaging signs, so as to better evaluate the therapeutic effect and prognosis of IPA.
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Affiliation(s)
- H Liu
- Department of Medical Imaging, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - Q Zhang
- Department of Otolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - W Hang
- Department of Otolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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Meng Y, Gao C, Lin Z, Hang W, Huang B. Nanoscale laser-induced breakdown spectroscopy imaging reveals chemical distribution with subcellular resolution. Nanoscale Adv 2020; 2:3983-3990. [PMID: 36132784 PMCID: PMC9417275 DOI: 10.1039/d0na00380h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 06/27/2020] [Indexed: 05/25/2023]
Abstract
Understanding chemical compositions is one of the most important parts in exploring the microscopic world. As a simple method for elemental detection, laser-induced breakdown spectroscopy (LIBS) is widely used in materials, geological and life science fields. However, due to the long-existing limitation in spatial resolution, it is difficult for LIBS to play an analytical role in the field of micro-world. Herein, we first report a reliable nanoscale resolution LIBS imaging technique by introducing a sampling laser with a micro-lensed fiber. Through the emission enhancement using the double-pulse laser, we obtained the spectral signal from a sampling crater of less than 500 nanometers in diameter, and visualized the chemical distribution of the self-made grid sample, SIM chip and nano-particles in single cells. The relative limits of detection (RLODs) of In and absolute limits of detection (ALODs) of Al can reach 0.6% and 18.3 fg, respectively.
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Affiliation(s)
- Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Chaohong Gao
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Zheng Lin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
- State Key Laboratory of Marine Environmental Science, Xiamen University Xiamen 361005 China
| | - Benli Huang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
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Zhang C, Li R, Zhu Q, Hang W, Zhang H, Cui H, Ji C, Zhang L, Chen F. Antioxidant enzymes and the mitochondrial alternative oxidase pathway play important roles in chilling tolerance of Haematococcus pluvialis at the green motile stage. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102003] [Citation(s) in RCA: 5] [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: 12/25/2022]
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37
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Wang X, Song Y, Liu B, Hang W, Li R, Cui H, Li R, Jia X. Enhancement of astaxanthin biosynthesis in Haematococcus pluvialis via inhibition of autophagy by 3-methyladenine under high light. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.101991] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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38
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Meng Y, Cheng X, Wang T, Hang W, Li X, Nie W, Liu R, Lin Z, Hang L, Yin Z, Zhang B, Yan X. Micro‐Lensed Fiber Laser Desorption Mass Spectrometry Imaging Reveals Subcellular Distribution of Drugs within Single Cells. Angew Chem Int Ed Engl 2020; 59:17864-17871. [DOI: 10.1002/anie.202002151] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/15/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiaoling Cheng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Tongtong Wang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China
| | - Xiaoping Li
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wan Nie
- State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing College of Materials Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Rong Liu
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zheng Lin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Le Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zhibin Yin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Baolin Zhang
- State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing College of Materials Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Xiaomei Yan
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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Meng Y, Cheng X, Wang T, Hang W, Li X, Nie W, Liu R, Lin Z, Hang L, Yin Z, Zhang B, Yan X. Micro‐Lensed Fiber Laser Desorption Mass Spectrometry Imaging Reveals Subcellular Distribution of Drugs within Single Cells. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002151] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiaoling Cheng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Tongtong Wang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
- State Key Laboratory of Marine Environmental Science Xiamen University Xiamen 361005 China
| | - Xiaoping Li
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Wan Nie
- State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing College of Materials Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Rong Liu
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zheng Lin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Le Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Zhibin Yin
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Baolin Zhang
- State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing College of Materials Science and Engineering Guilin University of Technology Guilin 541004 China
| | - Xiaomei Yan
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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Hang W, Ge YY, Liu HY, Jiang HR, Zhang SH, Tao Y. [Effects of Brachythecium plumosum and Plagiomnium venustum on seed germination and seedling growth of invasive plants]. Ying Yong Sheng Tai Xue Bao 2020; 31:2271-2278. [PMID: 32715691 DOI: 10.13287/j.1001-9332.202007.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Invasive plants can inhibit the survival and reproduction of native species through alle-lopathy. It is not clear whether the native plants, especially the mosses in the ground layer, inf-luence the invasive plants. In this study, we examined the effects of two native moss species, Brachythecium plumosum and Plagiomnium venustum, on two malignant invasive plants, Echinochloa crusgalli and Daucus carota. The effects of mosses on seed germination and seedling growth of both invasive species were determined based on the clump structure and allelopathy of the mosses. The germination rate, germination potential and germination index of the two invasive species were significantly inhibited when seeds fallen on or into the moss clump, with an order of inhibition effect: above moss clump>below moss clump>no moss. Radicle length and radicle/plumule of D. Carota were significantly affected when seeds fallen into the moss clump. Moss water extracts significantly reduced germination rate, germination potential, and germination index of the two invasive plants, with these effects being concentration-dependent. To some extent, moss water extracts increased the plumule length, radicle length and radicle/plumule of D. Carota seedlings, but without effect on E. crusgalli. Both mosses showed inhibitory effects on seed germination and seedling growth of two invasive plants, with higher sensitivity of E. crusgalli than D. Carota. Along with the increases in concentration of water extract, stronger inhibitory effects were found. Therefore, mosses could partially inhibit seed germination and seedling growth of invasive plants.
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Affiliation(s)
- Wei Hang
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China
| | - Yu-Ying Ge
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China
| | - Hao-Yu Liu
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China
| | - Hao-Ran Jiang
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China
| | - Shi-Hang Zhang
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China
| | - Ye Tao
- College of Life Sciences, Anqing Normal University/Anhui Pro-vince Key Laboratory of the Biodiversity Study and Ecology Conservation in Southwest Anhui, Anqing 246133, Anhui, China.,State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
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41
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Meng Y, Ma S, Zhang Z, Hang W. 3D Nanoscale Chemical Imaging of Core–Shell Microspheres via Microlensed Fiber Laser Desorption Postionization Mass Spectrometry. Anal Chem 2020; 92:9916-9921. [DOI: 10.1021/acs.analchem.0c01434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yifan Meng
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University,Xiamen 361005, China
| | - Siyuan Ma
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University,Xiamen 361005, China
| | - Zhenjian Zhang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University,Xiamen 361005, China
| | - Wei Hang
- Ministry of Education (MOE) Key Laboratory of Spectrochemical Analysis and Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University,Xiamen 361005, China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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42
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Liu Q, Zhang H, Hang W, Liu G. [Application and research progress of 3D printing in otorhinolaryngology and skull base surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:635-640. [PMID: 32610411 DOI: 10.3760/cma.j.cn115330-20191125-00722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin 300350, China
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43
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Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
| | - Yaping Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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44
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Zhang SP, Lin JS, Lin RK, Radjenovic PM, Yang WM, Xu J, Dong JC, Yang ZL, Hang W, Tian ZQ, Li JF. In situ Raman study of the photoinduced behavior of dye molecules on TiO 2( hkl) single crystal surfaces. Chem Sci 2020; 11:6431-6435. [PMID: 34094107 PMCID: PMC8159273 DOI: 10.1039/d0sc00588f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
In dye-sensitized solar cells (DSSCs), the TiO2/dye interface significantly affects photovoltaic performance. However, the adsorption and photoinduced behavior of dye molecules on the TiO2 substrate remains unclear. Herein, shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) was used to study the adsorption and photoinduced behavior of dye (N719) molecules on different TiO2(hkl) surfaces. On TiO2(001) and TiO2(110) surfaces, the in situ SHINERS and mass spectrometry results indicate S
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C bond cleavage in the anchoring groups of adsorbed N719, whereas negligible bond cleavage occurs on the TiO2(111) surface. Furthermore, DFT calculations show the stability of the SC anchoring group on three TiO2(hkl) surfaces in the order TiO2(001) < TiO2(110) < TiO2(111), which correlated well with the observed photocatalytic activities. This work reveals the photoactivity of different TiO2(hkl) surface structures and can help with the rational design of DSSCs. Thus, this strategy can be applied to real-time probing of photoinduced processes on semiconductor single crystal surfaces. In dye-sensitized solar cells (DSSCs), the TiO2/dye interface significantly affects photovoltaic performance.![]()
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Affiliation(s)
- Sheng-Pei Zhang
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Jia-Sheng Lin
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Rong-Kun Lin
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Petar M Radjenovic
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Wei-Min Yang
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Juan Xu
- Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University Zhangzhou 363000 China
| | - Jin-Chao Dong
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Zhi-Lin Yang
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Wei Hang
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Zhong-Qun Tian
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
| | - Jian-Feng Li
- Department of Physics, State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, College of Energy, College of Materials, Xiamen University Xiamen 361005 China
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Lu Q, Lin R, Du C, Meng Y, Yang M, Zenobi R, Hang W. Metal Probe Microextraction Coupled to Dielectric Barrier Discharge Ionization–Mass Spectrometry for Detecting Drug Residues in Organisms. Anal Chem 2020; 92:5921-5928. [DOI: 10.1021/acs.analchem.0c00004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Qiao Lu
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Rongkun Lin
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chao Du
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yifan Meng
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Manqing Yang
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Renato Zenobi
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- ETH Zurich, Department of Chemistry and Applied Biosciences, 8093 Zurich, Switzerland
| | - Wei Hang
- Department of Chemistry and the MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Ma H, Chen S, Xiong H, Wang M, Hang W, Zhu X, Zheng Y, Ge B, Li R, Cui H. Astaxanthin from Haematococcus pluvialis ameliorates the chemotherapeutic drug (doxorubicin) induced liver injury through the Keap1/Nrf2/HO-1 pathway in mice. Food Funct 2020; 11:4659-4671. [DOI: 10.1039/c9fo02429h] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The aim of this study is to probe a new function of astaxanthin (AST) from Haematococcus pluvialis on chemotherapeutic drug (doxorubicin) induced liver injury in mice.
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Affiliation(s)
- Haotian Ma
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Shuaihang Chen
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Huaye Xiong
- College of Resources and Environment
- Southwest University
- Chongqing 400716
- China
| | - Meng Wang
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Wei Hang
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Xiaoli Zhu
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Yubin Zheng
- Shandong Jinjing Biotechnology Co
- Ltd
- Weifang 261000
- China
| | - Baosheng Ge
- Center for Bioengineering and Biotechnology
- China University of Petroleum (East China)
- Qingdao 266580
- China
| | - Runzhi Li
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
| | - Hongli Cui
- Institute of Molecular Agriculture and Bioenergy
- Shanxi Agricultural University
- Taigu 030801
- China
- Institute of Functional Food
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Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Yaping Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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48
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Hang W, Huang X, Liu M, Ma Y. On the Room-Temperature Creep Behavior and Its Correlation with Length Scale of a Litao 3 Single Crystal by Spherical Nanoindentation. Materials (Basel) 2019; 12:ma12244213. [PMID: 31847453 PMCID: PMC6947211 DOI: 10.3390/ma12244213] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 11/16/2022]
Abstract
Relying on nanoindentation technology, the room-temperature creep behavior of a LiTaO3 single crystal in the typical orientation (01 1 ¯ 2), i.e., Y-42° plane was investigated. Three kinds of spherical tips with the radii of 0.76, 2.95 and 9.8 μm were respectively applied to detect nanoindentation length scale effect on creep deformation at both elastic and plastic regions. Superficially, both creep displacement and rate were nearly linearly increased with increasing holding depth and independent of tip size, which could be ascribed to the simultaneously enlarged holding strain and deformation volume beneath the indenter. At a similar holding strain, creep deformation, i.e., creep strain and strain rate were more pronounced under smaller spherical tips. Strain rate sensitivities of creep flows under different spherical tips and holding strains were also estimated. The potential room-temperature creep mechanism of LiTaO3 under high shear compression stress was discussed.
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Affiliation(s)
- Wei Hang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (W.H.); (X.H.); (M.L.)
- Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xianwei Huang
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (W.H.); (X.H.); (M.L.)
- Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Min Liu
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (W.H.); (X.H.); (M.L.)
- Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yi Ma
- College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; (W.H.); (X.H.); (M.L.)
- Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China
- Correspondence:
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Affiliation(s)
- Tongtong Wang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiaoling Cheng
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hexin Xu
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yifan Meng
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Zhibin Yin
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiaoping Li
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Wei Hang
- Department of Chemistry, MOE Key Lab of Spectrochemical Analysis & Instrumentation, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China
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50
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Liu H, Lu X, Hang W, Liu G. [Magnetic resonance imaging characteristics and differential diagnosis of common sellar cystic lesions]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:819-825. [PMID: 31795542 DOI: 10.3760/cma.j.issn.1673-0860.2019.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate magnetic resonance imaging (MRI) characteristic and differential diagnostic keypoints of common sellar regional cystic lesions with the purpose of improving differential diagnostic accuracy. Methods: In total, 174 cases of the pathologically diagnosed cystic lesions in sellar region between March 2016 and June 2019 were included in the current retrospective analysis. These cases included Rathke's cleft cyst (n=68), craniopharyngioma (n=48), pituitary adenoma (n=56) and arachnoid cyst (n=2) in the sellar region. The position, texture and morphology of leisions, signal of cystic and solid part, invasion of surrounding tissues and maximum diameter of cysts on the MRI images were evaluated and compared between different groups. SPSS 25.0 software was used for statistical analysis. Results: There were several specific changes on several MRI sequences in Rathke's cleft cysts, craniopharyngioma and pituitary adenoma groups. For Rathke's cleft cysts, round shape, rare polycystic structure, lack of solid part and maximum diameter of cysts which was significantly less than that of craniopharyngioma and pituitary adenoma groups ((17.37±6.12) mm vs (30.29±13.51) mm vs (28.18±11.13) mm, t value was 6.680, 5.838, respectively, all P<0.05), were favorable diagnostic criteria. While, the intracystic nodules were mostly found in craniopharyngioma. There was no high signal intensity in cystic wall on T1WI and T2WI of pituitary adenoma. MRI signal of arachnoid cyst in sellar region was basically the same as CSF signal, with low signal intensity on T1WI and DWI, high signal intensity on T2WI, without enhanced signal. Conclusions: Common sellar regional cystic lesions showed characteristic manifestations on different MRI sequences. Valuable information in the morphology, MRI signal intensity, maximum diameter measurements may improve accuracy of differential diagnosis for sellar regional cystic lesions.
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Affiliation(s)
- H Liu
- Department of Radiology, Tianjin HuanHu Hospital, Tianjin 300350, China
| | - X Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin HuanHu Hospital, Tianjin 300350, China
| | - W Hang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin HuanHu Hospital, Tianjin 300350, China
| | - G Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin HuanHu Hospital, Tianjin 300350, China
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