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Han YY, Zhang QH, Chen WS, Li ZL, Xie D, Zhang SL, Lu H, Wang LW, Xu ZH, Zhang LZ. Fermented rape pollen powder can alleviate benign prostatic hyperplasia in rats by reducing hormone content and changing gut microbiota. Benef Microbes 2023; 14:503-524. [PMID: 38656098 DOI: 10.1163/18762891-20230039] [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: 04/20/2023] [Accepted: 09/22/2023] [Indexed: 04/26/2024]
Abstract
Benign prostatic hyperplasia (BPH) can cause urethral compression, bladder stone formation, and renal function damage, which may endanger the life of patients. Therefore, we aimed to develop plant-based preparations for BPH treatment with no side effects. In this study, the Lactiplantibacillus plantarum 322Hp, Lactobacillus acidophilus 322Ha, and Limosilactobacillus reuteri 322Hr were used to ferment rape pollen. The fermented rape pollen was subsequently converted into fermented rape pollen powder (FRPP) through vacuum freeze-drying technology. After fermenting and drying, the bioactive substances and antioxidant capacity of FRPP were significantly higher than those of unfermented rapeseed pollen, and FRPP had a longer storage duration, which can be stored for over one year. To investigate the therapeutic effect of FRPP on BPH, a BPH rat model was established by hypodermic injection of testosterone propionate. The BPH rats were treated differently, with the model group receiving normal saline, the positive control group receiving finasteride, and the low, medium, and high dose FRPP group receiving FRPP at doses of 0.14 g/kg/d, 0.28 g/kg/d, and 0.56 g/kg/d, respectively. The results indicate that medium dose FRPP reduced the levels of hormone such as testosterone, dihydrotestosterone, and oestradiol in rats with BPH by about 32%, thus bringing the prostate tissue of BPH rats closer to normal. More importantly, medium dose FRPP treatment had a significant effect on the composition of gut microbiota in rats with BPH, increasing the levels of beneficial genera (such as Coprococcus and Jeotgalicoccus), and decreasing the levels of harmful pathogens (such as Turicibacter and Clostridiaceae_Clostridium) in the gut. This study showed that medium dose FRPP reduced the hormone level and regulated the unbalanced gut microbiota in BPH rats, thereby alleviating BPH.
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Affiliation(s)
- Y Y Han
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Q H Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - W S Chen
- Nanjing Jiufengtang Bee Products Co., Ltd, Nanjing, 210000, China P.R
| | - Z L Li
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - D Xie
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - S L Zhang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - H Lu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L W Wang
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - Z H Xu
- College of Bioscience and Bioengineering, Jiangxi Agricultural University, Nanchang, 330045, China P.R
| | - L Z Zhang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, China P.R
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Wei W, Liu JQ, Qi Y, Li XM, Meng FY, Ren QZ, Yan B, Wang ZL, Zhang QH. [Analysis of the efficacy of endoscopic transnasal surgery for sinonasal and skull base adenoid cystic carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:438-444. [PMID: 37100752 DOI: 10.3760/cma.j.cn115330-20221107-00666] [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: 04/28/2023]
Abstract
Objective: To evaluate the efficacy of endoscopic transnasal surgery for sinonasal and skull base adenoid cystic carcinoma (ACC), and to analyze the prognostic factors. Methods: Data of 82 patients (43 females and 39 males, at a median age of 49 years old) with sinonasal and skull base ACC who were admitted to XuanWu Hospital, Capital Medical University between June 2007 and June 2021 were analyzed retrospectively. The patients were staged according to American Joint Committee on Cancer (AJCC) 8th edition. The disease overall survival(OS) and disease-free survival(DFS) rates were calculated by Kaplan-Meier analysis. Cox regression model was used for multivariate prognostic analysis. Results: There were 4 patients with stage Ⅱ, 14 patients with stage Ⅲ, and 64 patients with stage Ⅳ. The treatment strategies included purely endoscopic surgery (n=42), endoscopic surgery plus radiotherapy (n=32) and endoscopic surgery plus radiochemotherapy (n=8). Followed up for 8 to 177 months, the 5-year OS and DFS rates was 63.0% and 51.6%, respectively. The 10-year OS and DFS rates was 51.2% and 31.8%, respectively. The multivariate Cox regression analysis showed that late T stage and internal carotid artery (ICA) involvement were the independent prognostic factors for survival in sinonasal and skull base ACC (all P<0.05). The OS of patients who received surgery or surgery plus radiotherapy was significantly higher than that of patients who received surgery plus radiochemotherapy (all P<0.05). Conclusions: Endoscopic transonasal surgery or combing with radiotherapy is an effective procedure for the treatment of sinonasal and skull base ACC. Late T stage and ICA involvement indicate poor prognosis.
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Affiliation(s)
- W Wei
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - J Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Y Qi
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - X M Li
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - F Y Meng
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Q Z Ren
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - B Yan
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, XuanWu Hospital, Capital Medical University, Beijing 100053, China
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Dai EH, Guo XR, Wang JT, Hu QG, Li JH, Tang QY, Zu HM, Huan H, Wang Y, Gao YF, Hu GQ, Li W, Liu ZJ, Ma QP, Song YL, Yang JH, Zhu Y, Huang SD, Meng ZJ, Bai B, Chen YP, Gao C, Huang MX, Jin SQ, Lu MZ, Xu Z, Zhang QH, Zheng S, Zeng QL, Qi XL. [Investigate of the etiology and prevention status of liver cirrhosis]. Zhonghua Yi Xue Za Zhi 2023; 103:913-919. [PMID: 36973219 DOI: 10.3760/cma.j.cn112137-20221017-02164] [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: 03/29/2023]
Abstract
Objective: To investigate the etiology, prevention and treatment status, and their corresponding regional differences of the patients with liver cirrhosis in China, in order to provide scientific basis for the development of diagnosis and control strategies in China. Methods: Clinical data of patients diagnosed with liver cirrhosis for the first time through January 1, 2018 to December 31, 2020 from 50 hospitals in seven different regions of China were collected and analyzed retrospectively, and the difference of etiology, treatment, and their differences in various regions were analyzed. Results: A total of 11 861 cases with liver cirrhosis were included in the study. Thereinto, 5 093 cases (42.94%) were diagnosed as compensated cirrhosis, and 6 768 cases (57.06%) had decompensated cirrhosis. Notably, 8 439 cases (71.15%) were determined as chronic hepatitis B-caused cirrhosis, 1 337 cases (11.27%) were alcoholic liver disease, 963 cases (8.12%) were chronic hepatitis C, 698 cases (5.88%) were autoimmune liver disease, 367 cases (3.09%) were schistosomiasis, 177 cases (1.49%) were nonalcoholic fatty liver, and 743 cases (6.26%) of other types of liver disease. There were significant differences in the incidence of chronic hepatitis B, chronic hepatitis C, alcoholic liver disease, fatty liver, schistosomiasis liver disease, and autoimmune liver disease among the seven regions (P<0.001). Only 1 139 cases (9.60%) underwent endoscopic therapy, thereinto, 718 cases (6.05%) underwent surgical therapy, and 456 cases (3.84%) underwent interventional therapy treatment. In patients with compensated liver cirrhosis, 60 cases (0.51%) underwent non-selective β receptor blockers(NSBB), including 59 cases (0.50%) underwent propranolol and 1 case (0.01%) underwent carvedilol treatment. In patients with decompensated liver cirrhosis, 310 cases (2.61%) underwent NSBB treatment, including 303 cases (2.55%) underwent propranolol treatment and 7 cases (0.06%) underwent carvedilol treatment. Interestingly, there were significant differences in receiving endoscopic therapy, interventional therapy, NSBB therapy, splenectomy and other surgical treatments among the seven regions (P<0.001). Conclusion: Currently, chronic hepatitis B is the main cause (71.15%) of liver cirrhosis in several regions of China, and alcoholic liver disease has become the second cause (11.27%) of liver cirrhosis in China. The three-level prevention and control of cirrhosis in China should be further strengthened.
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Affiliation(s)
- E H Dai
- Division of Liver Disease, the Fifth Hospital of Shijiazhuang, North China University of Science and Technology, Shijiazhuang 050021, China
| | - X R Guo
- School of Public Health, North China University of Science and Technology, Tangshan 063210, China
| | - J T Wang
- CHESS Center, Xingtai People's Hospital, Xingtai 054001, China
| | - Q G Hu
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - J H Li
- Department of Infectious Diseases, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Q Y Tang
- Second Department of Hepatology, Shenzhen Third People's Hospital, Shenzhen 518112, China
| | - H M Zu
- Department of Gastroenterology, Fourth People's Hospital of Qinghai Province, Xining 810007, China
| | - H Huan
- Department of Gastroenterology, Hospital of Chengdu Office of Tibet Autonomous Region People's Government, Chengdu 610041, China
| | - Y Wang
- Working Group of CHESS Frontier Center, Shenyang Sixth People's Hospital, Shenyang 110006, China
| | - Y F Gao
- Department of Infectious Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - G Q Hu
- Department of Infectious Diseases, People's Hospital of Jieshou, Jieshou 236502, China
| | - W Li
- the Third Department of Infection, the Second People's Hospital of Fuyang City, Fuyang 236029, China
| | - Z J Liu
- Department of Infectious Diseases, Anqing Municipal Hospital, Anqing 246004, China
| | - Q P Ma
- Department of Infectious Diseases, People's Hospital of Linquan County, Anhui Province, Linquan 236499, China
| | - Y L Song
- Department of Infectious Diseases, Tongling People's Hospital, Tongling 244099, China
| | - J H Yang
- Department of Infectious Diseases, Yijishan Hospital, the First Affiliated to Wannan Medical College, Wuhu 241006, China
| | - Y Zhu
- Department of Infectious Diseases, Chizhou People's Hospital, Chizhou 247099, China
| | - S D Huang
- Department of Infectious Diseases, the Second People's Hospital of Jingzhou City, Jingzhou 434002, China
| | - Z J Meng
- Department of Infectious Diseases, Taihe Hospital, Shiyan 442099, China
| | - B Bai
- Department of Infectious Diseases, Union Shenzhen Hospital, Huazhong University of Science and Technology, Shenzhen 518052, China
| | - Y P Chen
- Department of Infectious Diseases, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - C Gao
- Department of Infectious Diseases, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - M X Huang
- Department of Infectious Diseases, the Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai 519000, China
| | - S Q Jin
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - M Z Lu
- Department of Infectious Diseases, Shenzhen Longgang Central Hospital, Shenzhen 518116, China
| | - Z Xu
- Department of Gastroenterology, Dongguan People's Hospital, Dongguan 523058, China
| | - Q H Zhang
- Department of Hepatology, Second People's Hospital of Zhongshan City, Zhongshan 528447, China
| | - S Zheng
- Department of Endoscopy, Shenyang Sixth People's Hospital, Shenyang 110006, China
| | - Q L Zeng
- Department of Infectious Diseases and Hepatology, the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450052, China
| | - X L Qi
- CHESS Center, Zhongda Hospital Affiliated to Southeast University, Nanjing 210009, China
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Zhang QH, Xu N, Jiang ZN, Liu HF, Zhang GA. Chitosan derivatives as promising green corrosion inhibitors for carbon steel in acidic environment: Inhibition performance and interfacial adsorption mechanism. J Colloid Interface Sci 2023; 640:1052-1067. [PMID: 36921384 DOI: 10.1016/j.jcis.2023.02.141] [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: 11/22/2022] [Revised: 02/17/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023]
Abstract
Among the biodegradable polysaccharide, chitosan is widely present in the cell membranes of bacteria and algae and in the cell walls of higher plants. As a promising biopolymer, chitosan has great potential as eco-friendly corrosion inhibitor. Herein, two synthetic chitosan derivatives (N-phenylthiourea chitosan (CS-PT), N-phenyl-O-benzylthiourea chitosan (CS-PT-Bn)) were investigated as high-efficient acidic corrosion inhibitors to deal with the corrosion issue of carbon steel. The anti-corrosion property of the chitosan derivatives was explored by electrochemical tests, surface characterization and theoretical calculations. The experimental results indicate that both CS-PT and CS-PT-Bn present high-efficient inhibition performance with the inhibition efficiency of 98.4% and 98.5% at the concentration of 100 mg/L, respectively. Their adsorption mechanism at steel/solution interface is revealed by quantum chemical calculations, molecular dynamics (MD) and GFN-xTB calculations. It is found that CS-PT and CS-PT-Bn adsorb at the steel/solution interface by forming Fe-N and Fe-S bonds. Compared to CS-PT molecule, the introduction of benzyl group endows CS-PT-Bn molecule with stronger electrostatic effect and hydrophobicity, which favors the interfacial adsorption of CS-PT-Bn molecule on carbon steel surface.
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Affiliation(s)
- Q H Zhang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, PR China; Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - N Xu
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, PR China
| | - Z N Jiang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - H F Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 410074, PR China
| | - G A Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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5
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Xie YD, Zhang QH, Li Y, Jin PK, Dzakpasu M, Wang XC. A new paradigm of sewage collection in rural areas. Environ Sci Pollut Res Int 2023; 30:28609-28620. [PMID: 36401008 DOI: 10.1007/s11356-022-24014-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
Rural sewage collection networks play extremely important roles in rural sewage treatment, and the lack of a suitable collection model makes this task difficult. Hence, there is an urgent need to develop a new method to collect and deal with rural sewage. This paper establishes a rural sewage optimal collection model (RSOCM) with critical distance (d) and sewage quota per unit area (qs) as the constraint factors. The implementation of critical distance for rural sewage collection pipeline networks was demonstrated for 38 rural areas in the Huicheng District, Huizhou City, Guangdong Province of China. The average critical distances of 22 m, 38 m, 29 m, 29 m, 41 m, and 55 m were demonstrated for Sandong Town, Ma'an Town, Luzhou Town, Ruhu Town, Hengli Town, and Shuikou Subdistrict, respectively. The qs is used to create the best possible pipe network layout, determine the appropriate treatment method, and reduce construction costs. This model can be widely applied to sewage collection in rural areas of China, where the overall sewage collection system can implement different regional strategies to maximize rural pollution control and protect the environment.
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Affiliation(s)
- Y D Xie
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an, 710055, China.
| | - Y Li
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - P K Jin
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an, 710055, China
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi Province, China
| | - M Dzakpasu
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an, 710055, China
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an, 710055, China
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Wang ZL, Liu JQ, Wei W, Qi Y, Zhang RX, Ren QZ, Zhang QH. [Endoscopic transoral resection of metastatic retropharyngeal lymph nodes in nasopharyngeal carcinoma via posteroinferior eustachian tube approach: a single center review study]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1328-1334. [PMID: 36404659 DOI: 10.3760/cma.j.cn115330-20220418-00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To summarize the clinical experience and treatment results of endoscopic transoral resection of metastatic retropharyngeal lymph nodes (MRPLN) in nasopharyngeal carcinoma (NPC) via posteroinferior eustachian tube approach. Methods: The clinical data of 37 patients with NPC who underwent endoscopic transoral surgery via posteroinferior eustachian tube approach for MRPLN in Xuanwu Hospital, Capital Medical University from 2010 to 2020 were analyzed retrospectively. There are 28 males and 9 females, aged from 31 to 72 years. The clinicopathological features such as gender, age, primary tumor stage, stage, side and size of MRPLN were recorded and analyzed. The surgical procedures of endoscopic transoral resection of MRPLN via posteroinferior eustachian tube approach were described. The MRPLN resection, perioperative complications and follow-up results were also summarized. Results: The primary tumors of 37 cases were determined as rT1 stage in 2 cases, rT2 stage in 30 cases and primary T2 stage in 5 cases in this study. There were 33 cases of unilateral MRPLN(89.2%), 4 cases of bilateral ones (10.8%), 36 cases in N1 stage, and 1 case in N3 stage. Single lymph node was detected in 23 cases(62.2%), and 2-5 lymph nodes in 14 cases(37.8%). Endoscopic transoral surgery via posteroinferior eustachian tube approach was completed in all cases. Total MRPLN resection was obtained in 35 cases (94.6%) with one-stage operation, and subtotal resection was achieved in 2 cases whose MRPLN involved the wall of internal carotid artery. No serious complications occurred in the perioperative period. During the follow-up period (median follow-up period 53.1 months), no recurrence of MRPLN was observed in patients who received total resection. And 8 patients (21.6%) died from different causes. Conclusion: Endoscopic transoral surgery via posteroinferior eustachian tube approach for MRPLN is a practicable and effective surgical option, but the long-term effect still needs longer follow-up and summary of bulk cases.
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Affiliation(s)
- Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - J Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - W Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Y Qi
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - R X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Q Z Ren
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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7
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Gao Z, Zhang QH, Xie YD, Wang Q, Dzakpasu M, Xiong JQ, Wang XC. A novel multi-objective optimization framework for urban green-gray infrastructure implementation under impacts of climate change. Sci Total Environ 2022; 825:153954. [PMID: 35189239 DOI: 10.1016/j.scitotenv.2022.153954] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/24/2022] [Accepted: 02/13/2022] [Indexed: 06/14/2023]
Abstract
Frequent urban flooding disasters can cause severe economic and property losses. Accordingly, the construction of sponge city has become critical to alleviating urban flooding. However, the functional and structural integration of Green Infrastructure (GI) and Gray Drainage Facility (GDF) is still a matter of concern. This study proposed a novel implementation framework for GI and GDF synchronization optimization (G-GSOIF) based on the SWMM and SUSTAIN models, and used data from Beilin District in Xi'an, China to verify the effects. The results show that the spatiotemporal integrated optimization design of GI and GDF proves to be effective in stormwater management. The total investment was reduced by 16.7% and economic benefit was increased by 15.4% based on disaster risk control, and the utilization rate of rainwater resources exceeded 40%. The Staged optimization model (SSOM) based on the SUSTAIN model established in the G-GSOIF was demonstrated to effectively cope with the impact of future climate change by adjusting and optimizing the design scheme dynamically in different simulation scenarios. Integrated LID (I-LID) measures are conducive for simulation of large catchment areas, and have the same implementation effect as distributed LID measures. The results of this study could support decision-making for urban stormwater management and sponge city construction.
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Affiliation(s)
- Z Gao
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - Y D Xie
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Q Wang
- Key Lab of Organic Polymer Photoelectric Materials, School of Science, Xijing University, Xi'an 710123, Shaanxi, China
| | - M Dzakpasu
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - J Q Xiong
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an University of Architecture and Technology, Xi'an 710055, China
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8
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Zheng MY, He YJ, Liu XY, Zhang QH, Wang TY, Yang JL, Shu JC. [Research progress on the relationship between liver cirrhosis and thyroid hormones]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:331-334. [PMID: 35462493 DOI: 10.3760/cma.j.cn501113-20210508-00225] [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
There exists a complex relationship between liver and thyroid hormones. Liver plays an important role in the activation, inactivation, transportation, and metabolism of thyroid hormones. At the same time, thyroid hormones also affect hepatocytes activity and liver metabolism, such as lipid and bilirubin metabolism. Importantly, thyroid hormone levels often change abnormally in patients with liver cirrhosis. Therefore, studying the change of thyroid hormone levels in patients with liver cirrhosis has a certain clinical value for assessing the severity, prognosis, diagnosis and treatment. This paper reviews the research progress on the relationship between liver cirrhosis and thyroid hormone.
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Affiliation(s)
- M Y Zheng
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - Y J He
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - X Y Liu
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - Q H Zhang
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - T Y Wang
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - J L Yang
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
| | - J C Shu
- Department of Gastroenterology,Guangzhou Red Cross Hospital Affiliated to Jinan University, Guangzhou 510220, China
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He CH, Liu JW, Zhu ZH, Pan HW, Zheng ZF, He J, Liu ZY, Zhang Y, Wang CL, Rong JJ, Tang Y, Zhang QH. [Establishment and validation of a new predictive equation with multiple risk factors for the development of cardiorenal syndrome type 1 in patients with acute myocardial infarction]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:802-808. [PMID: 34404190 DOI: 10.3760/cma.j.cn112148-20201118-00916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the independent risk factors of cardiorenal syndrome type 1 (CRS1) in patients with acute myocardial infarction (AMI) and to build a predictive equation for the development of CRS1 in these patients. Method: Consecutive inpatients with AMI, who hospitalized from January 2017 to December 2018 in the Hunan Provincial People's Hospital, were enrolled in this case-control study. Patients were divided into CRS1 group and non-CRS1 group according to the presence or absence of CRS1.The clinical data were collected through the electronic medical record system of Hunan Provincial People's Hospital. The matching process was conducted with a minimum-distance scoring method and a 1∶1 match between the CRS1 group and the no-CRS1 group, the propensity score was calculated through the logistic regression model. Factors with statistically significant differences in univariate analysis were included in the multivariate logistic regression model to analyze the risk factors of AMI patients with CRS1, then the independent risk factors were used to establish a predicting equation for CRS1 by logistic regression function for model building. Area under the curve (AUC) value and the best cut-off value of the combined predictors was determined according to the ROC curve. Python 3.8 software was used to perform 10-fold cross-validation on modeling samples. Results: A total of 942 patients were included, there were 113 cases in CRS1 group and 829 cases in non-CRS1 group. Ultimately, 99 CRS1 patients were successfully matched to 99 non-CRS1 patient using 1∶1 matching. After propensity score matching, the baseline age and sex along with heart rate, mean arterial pressure, percentage of people with a history of diabetes, hypertension, ST-segment elevation myocardial infarction, myocardial ischemia time, angiotensin converting enzyme inhibitors or angiotensin Ⅱ receptor blockers use, and β receptor blocker use were similar between the two groups(all P>0.05). The contrast agent dosage was also similar between the two groups (P=0.266). The peak cardiac troponin I (cTnI), N-terminal pro-brain natriuretic peptide(NT-proBNP), white blood cell count, base estimated glomerular filtration rate (eGFR), albumin and hemoglobin levels were statistically significant between the two groups (all P<0.05). Multivariate logistic regression analysis showed that decreased baseline eGFR, increased NT-proBNP, peak cTnI concentrations and white blood cell count were independent risk factors of CRS1 in AMI patients (all P<0.01).The predicting equation of the combined predictor was established by transforming the logistic model equation, L=0.031×cTnI+0.000 2×NT-proBNP-0.024×eGFR+0.254×white blood cell count, where L represented the combined predictor. ROC curve analysis indicated that the AUC of the peak cTnI, NT-proBNP, baseline eGFR, white blood cell count, and combined predictor were 0.76, 0.85, 0.79, 0.81, and 0.92 respectively (all P<0.05), and the cutoff value of combined predictor was 2.6. The AUC of ROC curve after the model's ten-fold cross validation was 0.89. Conclusions: Decreased baseline eGFR, increased NT-proBNP, peak cTnI concentrations and white blood cell count are the independent risk factors for CRS1 in AMI patients. The combined predictor equation based on the above 4 biomarkers presents a good predictive value for CRS1 in AMI patients.
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Affiliation(s)
- C H He
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J W Liu
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z H Zhu
- Department of Cardiology, Luohe Central Hospital, Luohe 462000, China
| | - H W Pan
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z F Zheng
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J He
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z Y Liu
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Y Zhang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - C L Wang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J J Rong
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Y Tang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Q H Zhang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
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Lian K, Cui J, Li L, Li Y, Zhang QH. Primary CD5⁺ diffuse large B-cell lymphoma with hyperlactatemia as the first manifestation. J BIOL REG HOMEOS AG 2021; 35:779-781. [PMID: 33887900 DOI: 10.23812/20-522-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K Lian
- Department of Oncology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Bethune Hospital affiliated to Shanxi Medical University, Taiyuan, China
| | - J Cui
- Department of Oncology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Bethune Hospital affiliated to Shanxi Medical University, Taiyuan, China
| | - L Li
- Department of Pathology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Bethune Hospital affiliated to Shanxi Medical University, Taiyuan, China
| | - Y Li
- Department of Pathology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Bethune Hospital affiliated to Shanxi Medical University, Taiyuan, China
| | - Q H Zhang
- Department of Oncology, Shanxi Academy of Medical Sciences and Shanxi Bethune Hospital, Shanxi Bethune Hospital affiliated to Shanxi Medical University, Taiyuan, China
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Xie YD, Zhang QH, Dzakpasu M, Zheng YC, Tian Y, Jin PK, Yang SJ, Wang XC. Towards the formulation of rural sewage discharge standards in China. Sci Total Environ 2021; 759:143533. [PMID: 33243509 DOI: 10.1016/j.scitotenv.2020.143533] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/09/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
In China, most rural areas lack specific sewage discharge standards. Even though China governments proposed a series of local standards, the most of the existing China's rural sewage discharge standards are still similar to urban discharge standards. This research analyses comprehensively the data of rural sewage discharge standards in the 31 provinces and cities in China in terms of grade and indicator, and forms a structural framework for the formulation and revised standards in rural areas of China. In the formulation, we use 2 components, end-use and environmental capacity, to reflect local characteristics of the grades and indicators, and also propose the methods of combining discharge standards with relevant water quality standards to save energy. And we also use the mathematical model to illustrate environmental capacity in different regions. The paper shows the great potential in guiding the design of discharge standards formulation and revision for rural wastewater treatment in China and other developing countries as well.
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Affiliation(s)
- Y D Xie
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China.
| | - M Dzakpasu
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Y C Zheng
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Y Tian
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - P K Jin
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - S J Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China
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Yang J, Guo F, Lyu T, Yan LN, Wen TF, Yang JY, Wu H, Wang WT, Song JL, Xu H, Zhang QH. [Research of artificial intelligence-based clinical decision support system for primary hepatocellular carcinoma]. Zhonghua Yi Xue Za Zhi 2020; 100:3870-3873. [PMID: 33371633 DOI: 10.3760/cma.j.cn112137-20200905-02571] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To apply artificial intelligence technology in clinical real-world data of patients with primary hepatocellular carcinoma, explore the precise treatment of disease and build up artificial intelligence-based clinical decision support system. Methods: A total of 5 642 patients with primary hepatocellular carcinoma admitted to West China Hospital from July 2004 to June 2016 with complete follow-up records were included in the study. A merged model composed of multiple sub-classifiers was adopted to calculate therapy recommendation coefficient, and receiver operator characteristic curve was analyzed. Survival risk and recurrence risk were predicted by DeepSurv algorithm, and Kaplan-Meier survival curves were further compared among low, middle and high risk groups. Siamese-Net was applied to find similar patients. Results: The Top-1 and Top-2 accuracy of therapy recommendation coefficient reached 82.36% and 94.13% respectively. In internal verification of West China Hospital, the above-mentioned value reached 95.10% in accordance with multi-disciplinary team results. The C-index derived from survival risk model was 0.735 (95%CI:0.70-0.77), and the difference of Kaplan-Meier in pairwise comparison was of statistical significance under log-rank test (P<0.001). Meanwhile, the C-index derived from recurrence risk model was 0.705 (95%CI:0.68-0.73), and the difference of Kaplan-Meier in pairwise comparison was of statistical significance under log-rank test (P<0.001). Conclusions: The artificial intelligence-based clinical decision support system for primary hepatocellular carcinoma has can accurately make therapy recommendation and prognosis prediction for primary hepatocellular carcinoma.
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Affiliation(s)
- J Yang
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - F Guo
- Yibao Medical Technology (Shanghai) Co., Ltd, Shanghai 200030, China
| | - T Lyu
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - L N Yan
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - T F Wen
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Y Yang
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Wu
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - W T Wang
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - J L Song
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Xu
- Yibao Medical Technology (Shanghai) Co., Ltd, Shanghai 200030, China
| | - Q H Zhang
- Yibao Medical Technology (Shanghai) Co., Ltd, Shanghai 200030, China
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13
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Xu JJ, Zhang LZ, Zhang QH, Guo HW, Tan Z, Wang JF, Jiang LH, Zheng CM, Ge MH, Lan XB. [Clinical application of the gasless unilateral axillary approach in endoscopic thyroid surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:913-920. [PMID: 33036505 DOI: 10.3760/cma.j.cn115330-20200225-00126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy, safety and advantages of gasless unilateral axillary approach (GUAA) in endoscopic thyroid surgery. Methods: A total of 334 patients who underwent the GUAA endoscopic thyroid surgery (GUAA group) or conventional open thyroid surgery (OS group) in the Department of Head and Neck Surgery of Zhejiang Cancer Hospital from January 2017 to June 2018 were retrospectively analyzed. There were 45 males and 289 females, aged from 12 to 72 years old, of whom 139 patients were assigned to GUAA group and 195 patients to OS group. Pathological results included papillary thyroid carcinoma (282 cases), nodular goiter (41 cases) and thyroid adenoma (11 cases). Surgical exploration development curve of GUAA group was drawn and was divided into two parts: the technical exploration stage and the technical stable stage. Surgical efficiency, incidences of complications, and incision satisfaction were compared between GUAA group in technical stable stage and OS group. SPSS 25.0 software was adopted for statistical analysis. Results: The mean age in GUAA group was younger than that in OS group, with a significant difference [(35.3±9.5) years vs. (48.1±10.6) years, t=11.31, P<0.01]. The cases in the endoscope group were divided into technical exploration stage for 51 cases and technical stable stage for 88 cases according to the exploration and development curve. In unilateral radical thyroidectomy and unilateral thyroid lobectomy, the mean operation time [(90.6±18.6) min and (93.5±22.0) min] and postoperative drainage volumes [(121.5±87.6) ml and (155.5±69.1) ml] of GUAA group in the stable stage were more than those of OS group [(61.6±15.6) min and (46.5±8.4) min] and [(93.2±42.3) ml and (78.9±48.7) ml]. The difference was statistically significant (t=12.28, 7.23, 3.35 and 3.05 respectively, all P<0.05), but there were no significant differences in surgical bleeding volumes between two groups [(12.7±6.8) ml vs. (13.5±7.7) ml, t=0.74, P>0.05 and (16.3±14.1) ml vs. (11.9±5.1) ml, t=1.05, P>0.05]. Compared with OS group, GUAA group had the lower incidence of anterior cervical discomfort during swallowing (2.3% vs. 29.2%, P<0.01) and the higher incision satisfaction score (1.1±0.5 vs. 2.8±0.7, t=21.12, P<0.01), however, GUAA group had the higher incidence of supraclavicular (or infraclavicular) numbness after surgery (5.7% vs. 0, P<0.01). And there was no significant difference in the incidences of temporary recurrent laryngeal nerve injury, bleeding, hematoma, infection, lymphatic leakage or chylous leakage after surgery between two groups (P>0.05). Conclusion: GUAA endoscopic thyroid surgery is a safe method with high cosmetic satisfaction.
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Affiliation(s)
- J J Xu
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L Z Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Q H Zhang
- Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - H W Guo
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - Z Tan
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - J F Wang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - L H Jiang
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - C M Zheng
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - M H Ge
- Department of Head and Neck Surgery, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou 310014, China
| | - X B Lan
- Department of Head and Neck Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
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14
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Zhang QH, Hou BS, Li YY, Zhu GY, Liu HF, Zhang GA. Effective corrosion inhibition of mild steel by eco-friendly thiourea functionalized glucosamine derivatives in acidic solution. J Colloid Interface Sci 2020; 585:355-367. [PMID: 33310312 DOI: 10.1016/j.jcis.2020.11.073] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 11/15/2022]
Abstract
In the view of environmental protection and sustainable development, the application of green effective inhibitors for metal corrosion in industry field is of great significance. In this work, two thiourea functionalized glucosamine derivatives, 5-hydroxy-1-phenyl-4-(1,2,3,4-tetrahydroxybutyl)imidazolidine-2-thione (GA-1) and 1-phenyl-3-(2,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)thiourea (GA-2), were synthesized as eco-friendly corrosion inhibitors for mild steel (MS) in 1 M HCl solution, and their inhibition performance were evaluated by electrochemical tests and surface analyses. The electrochemical tests and surface analyses indicate that both GA-1 and GA-2 have high inhibition performance. Especially for GA-2, the inhibition efficiency reaches 97.7% with a concentration of 0.64 mM. Theoretical calculations were also conducted to elucidate the adsorption mechanism of GA-1 and GA-2 on MS surface.
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Affiliation(s)
- Q H Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - B S Hou
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Y Y Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - G Y Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - H F Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 410074, PR China
| | - G A Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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15
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Su D, Zhang QH, Ngo HH, Dzakpasu M, Guo WS, Wang XC. Development of a water cycle management approach to Sponge City construction in Xi'an, China. Sci Total Environ 2019; 685:490-496. [PMID: 31176234 DOI: 10.1016/j.scitotenv.2019.05.382] [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] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 05/24/2019] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
In recent years, climate change, population growth, and inefficient use of water have exacerbated the water resources scarcity problems around the world. Hence, this paper establishes a new approach of Sponge City construction (SCC) based on water cycle management (WCM) for the sustainable exploitation of groundwater, recycled wastewater and rainwater in the Xi'an Siyuan University. The University is located in an isolated area that is far away from the city center so that no centralized water supply system could be utilized. To mitigate water scarcity problems in the University, 39% of the annual rainfall is harvested and stored from impervious surfaces and grasslands by using the Curve Number (CN) method. This stored water is reused for non-potable purposes: 40% for toilet flushing and 60% as miscellaneous water. According to findings, the available rainwater of500-700 m3/d accounts for 16-23% of the non-potable water from April to December. Moreover, the utilization rate of water resources increases from 204% to 227%. With the minimum volume of large-scale rainwater harvesting cistern of 52,760 m3, the environment could be adequately watered while improving the expansion and development conditions on the campus. Furthermore, water scarcity problems could be mitigated through optimization of the water resources utilization system. This study demonstrates that this new approach of SCC based on WCM could alleviate water resources scarcity problems in Xi'an Siyuan University effectively. It is hoped that this study will provide a model and example of the new approach for future applications.
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Affiliation(s)
- D Su
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China.
| | - H H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia
| | - M Dzakpasu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - W S Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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Luo B, Miao SH, He L, Zhao YP, Xu CW, Zhu J, Zhang QH, Liu W, Ma Y, Zhang YQ. [Diffusion tensor imaging and visual evoked potentials in pediatric patients with sellar region lesions]. Zhonghua Yi Xue Za Zhi 2019; 99:1167-1171. [PMID: 31006221 DOI: 10.3760/cma.j.issn.0376-2491.2019.15.010] [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: 11/05/2022]
Abstract
Objiective: To evaluate the prognosis of visual function and the impact of surgery in pediatric patients with sellar mass lesions, as evidenced by diffusion tensor imaging (DTI) and visual evoked potentials. Methods: Twenty patients with sellar mass lesions were included in the study. DTI and visual evoked potentials were obtained before and after surgery. Fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values were calculated for both optic nerves. DTI parameters and visual evoked potential amplitudes were compared for all patients to assess the correlation between DTI parameters and visual function. Results: The 20 patients were divided into two groups according the relationship between the lesions and the optic chiasm. The FA values increased significantly after operation, while the ADC values decreased (P<0.05). And the average amplitude of visual evoked potentials after operation was significantly higher than before operation (P<0.05). Conclusions: DTI assessments of the affected sides, with the resulting FA and ADC values, may help to estimate the visual improvement produced by surgical therapy in the early postoperative period. Surgical removal can improve visual function dramatically.
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Affiliation(s)
- B Luo
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - S H Miao
- Department of Neurosurgery, Tsinghua University Yuquan Hospital, Beijing 100049, China
| | - L He
- Center for Biomedical Imaging Research, Tsinghua University, Beijing 100084, China
| | - Y P Zhao
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - C W Xu
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - J Zhu
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - Q H Zhang
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - W Liu
- School of Clinical Medicine, Tsinghua University, Beijing 100084, China
| | - Y Ma
- Department of Neurosurgery, Tsinghua University Yuquan Hospital, Beijing 100049, China
| | - Y Q Zhang
- Department of Neurosurgery, Tsinghua University Yuquan Hospital, Beijing 100049, China
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Meng FQ, Zhang QH, Gao A, Liu XZ, Zhang JN, Peng SY, Lu X, Gu L, Li H. Synergistic O 2-/Li + Dual Ion Transportation at Atomic Scale. Research (Wash D C) 2019; 2019:9087386. [PMID: 31549094 PMCID: PMC6750112 DOI: 10.34133/2019/9087386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 12/10/2018] [Indexed: 11/06/2022]
Abstract
The ion migration during electrochemical process is a fundamental scientific issue for phase transition behavior and of technical importance for various functional devices, where cations or anions are active under electrical bias. Usually only one type of functional ion, O2- or Li+, is activated due to their different migration energy barriers, cooperated by the valence change of other immobile ions in the host lattice matrix, e.g., Co2+/Co3+ and Mn3+/Mn4+ redox couples, owing to the charge neutralization. Here we select spinel Li4Ti5O12 as anode and construct an all-solid-state battery under a transmission electron microscope; a synergistic transportation of O2- and Li+ driven by an electrical bias was directly observed at the atomic scale. A small amount of oxygen anions was extracted firstly as a result of its lowest vacancy formation energy under 2.2 V, leading to the vertical displacement of oxygen. Up to 2.7 V, an ordered phase with both Li- and O- deficiency formed. The Li+ and O2- ions are simultaneously extracted out from the [LiO4] tetrahedra due to the electroneutrality principle. The migration paths of O and Li have been proposed and verified by first-principles calculations. These results reveal a brand new synergistic ion migration manner and may provide up-to-date insights on the transportation process of lithium ion conductors.
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Affiliation(s)
- F Q Meng
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Q H Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - A Gao
- School of Materials, Sun Yat-Sen University, Guangzhou 510275, China
| | - X Z Liu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - J N Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - S Y Peng
- College of Materials Science and Engineering, Jiangxi University of Science and Technology, Jiangxi 341000, China
| | - X Lu
- School of Materials, Sun Yat-Sen University, Guangzhou 510275, China
| | - L Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China.,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - H Li
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.,Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China.,School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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Lv HL, Yan B, Zhang QH. [Analysis of related factors of coins foreign bodies crossing the esophagus in 204 cases of children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:661-664. [PMID: 29771081 DOI: 10.13201/j.issn.1001-1781.2018.09.005] [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: 01/30/2018] [Indexed: 11/12/2022]
Abstract
Objective:To explore the anti-tumor effect of Stat3 antisense oligodeoxynucleotide on human Hep-2 cell tumor-bearing BALB/c nude mouse, to study the therapeutic value of Stat3 antisense oligodeoxynucleotide on laryngeal cancer. Method:Hep-2 cells from human laryngeal carcinoma in logarithmic phase were inoculated subcutaneously into BALB/c mice to establish a model of human Hep-2 cell tumor-bearing BALB/c mice. They were divided into blank group, control group and different concentrations of AS3 groups(1 group, 2 group, 3 group, 4 group), and then intraperitoneally administered once a day for 4 weeks, measuring body weight twice a week, and the long and short diameters of the tumors were recorded. After 4 weeks, the mice in each group were weighted. The subcutaneous transplanted tumors were dissected, weighted, and inhibitory rate was obtained.Result:Stat3 antisense oligodeoxynucleotide can obviously inhibited the growth of human Hep-2 cell tumor-bearing BALB/c mice with the concentration of antisense oligodeoxynucleotide heightened. The IR in different concentration AS3 groups was obviously higher than that in the control group(P<0.01) .Conclusion:Stat3 antisense oligodeoxynucleotide can obviously inhibit the growth of subcutaneous transplanted tumors in human Hep-2 cell tumor-bearing BALB/c mice, and may have therapeutical effect on laryngeal cancer.
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Affiliation(s)
- H L Lv
- Center of Otolaryngology Skull Base Surgery,Xuanwu Hospital,Capital Medical University,Beijing,100053,China
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Jiao LF, Zhang QH, Wu H, Wang CC, Cao ST, Feng J, Hu CH. Influences of Copper/Zinc-Loaded Montmorillonite on Growth Performance, Mineral Retention, Intestinal Morphology, Mucosa Antioxidant Capacity, and Cytokine Contents in Weaned Piglets. Biol Trace Elem Res 2018; 185:356-363. [PMID: 29468611 DOI: 10.1007/s12011-018-1259-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/30/2018] [Indexed: 10/18/2022]
Abstract
The effects of copper/zinc-loaded montmorillonite (Cu/Zn-Mt) on growth performance, mineral retention, intestinal morphology, mucosa antioxidant capacity, and cytokine contents in weaned piglets were investigated in the present study. One hundred eight piglets weaned at 21 ± 1 days of age (Duroc × Landrace× Yorkshire; average initial weight of 6.36 kg) were allotted to three treatments for 2 weeks. The three treatments were as follows: (1) control group: basal diet; (2) Cu/Zn-Mt group: basal diet + 39 mg/kg Cu and 75 mg/kg Zn as Cu/Zn-Mt; (3) Cu + Zn + Mt group: basal diet + mixture of CuSO4, ZnSO4, and Mt (equal amount of Cu, Zn, and Mt to the Cu/Zn-Mt group). Each treatment had six pens of six piglets. The results showed that as compared with the control group and the Cu + Zn + Mt group, Cu/Zn-Mt supplementation increased (P < 0.05) the average daily gain and the gain/feed ratio; Cu/Zn-Mt supplementation increased (P < 0.05) the Cu and Zn concentrations in serum, jejunum, and ileum mucosa, villus height, the ratio of villus height to crypt depth, and the activities of SOD, GSH-Px, and IL-10 levels, and decreased the malondialdehyde concentrations in the jejunum and ileum, and intestinal IL-1β, IL-6, and TNF-α levels. Moreover, supplementation with the mixture of CuSO4, ZnSO4, and Mt had no effect on the growth performance, but increased the mucosa Cu and Zn concentrations, intestinal morphology, antioxidant capacity, and immune function in the duodenum, while it had no effect on the above indexes in the jejunum and ileum. The results indicated that Mt could be used as a controlled carrier for Cu and Zn, which made Cu/Zn-Mt have better biological activities in the intestine than the mixture of Cu, Zn, and Mt.
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Affiliation(s)
- L F Jiao
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - Q H Zhang
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - H Wu
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - C C Wang
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - S T Cao
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - J Feng
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China
| | - C H Hu
- Animal Science College, Key Laboratory of Molecular Animal Nutrition, Ministry of Education; Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture, Zhejiang University, Hangzhou, 310058, China.
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Cao ST, Wang CC, Wu H, Zhang QH, Jiao LF, Hu CH. Weaning disrupts intestinal antioxidant status, impairs intestinal barrier and mitochondrial function, and triggers mitophagy in piglets. J Anim Sci 2018; 96:1073-1083. [PMID: 29617867 DOI: 10.1093/jas/skx062] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In the present study, we investigated the influence of weaning on antioxidant status, intestinal integrity, mitochondrial function, and the mitophagy level in piglets (weaned at 21 d) during the 1 wk after weaning. The redox status was measured by antioxidant enzymes activities, related genes expression, and malondialdehyde (MDA) content in jejunum. The intestinal barrier function was assessed by the Ussing chamber and expression of tight junction proteins in the jejunum. The function of intestine mitochondria was measured by mitochondrial DNA (mtDNA) content and activities of mitochondria oxidative phosphorylation complexes. The levels of light chain 3-1 (LC3-I), light chain 3-II (LC3-II), PTEN-induced putative kinase 1 (PINK1), and Parkin were determined to investigate whether mitophagy is involved in the weaning process. The results showed that, as compared with the preweaning phase (d 0), weaning suppressed (P < 0.05) the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) on d 3 and d 7 postweaning, decreased (P < 0.05) the expression of copper and zinc superoxide dismutase (Cu/Zn-SOD), manganese-containing superoxide dismutase (Mn-SOD) on d 3 postweaning, declined (P < 0.05) the level of glutathione peroxidase 1 (GPX-1) and glutathione peroxidase 4 (GPX-4) on d 3 and d 7 postweaning, and increased (P < 0.05) MDA content in jejunum on d 3 and d 7 postweaning. The jejunal transepithelial electrical resistance and levels of occludin, claudin-1, and zonula occludens-1 on d 3 and d 7 postweaning were reduced (P < 0.05), and paracellular flux of fluorescein isothiocyanatedextran (4 kDa) on d 3 and d 7 postweaning was increased (P < 0.05). Weaning induced mitochondrial dysfunction, as demonstrated by decreased (P < 0.05) content of mtDNA on d 3 and d 7 postweaning and declined (P < 0.05) activities of mitochondria complexes (I, II, III, IV) in jejunum on d 1, d 3, and d 7 postweaning. Weaning led to an increased (P < 0.05) expression level of mitophagy-related proteins, PINK1 and Parkin, in the intestinal mitochondria, as well as an enhancement (P < 0.05) of the ratio of LC3-II to LC3-I content in the jejunal mucosa on d 1, d 3, and d 7 postweaning. These results suggest that weaning disrupted intestinal oxidative balance, and this imbalance may impair intestinal barrier and mitochondrial function and trigger mitophagy in piglets.
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Affiliation(s)
- S T Cao
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - C C Wang
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - H Wu
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - Q H Zhang
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - L F Jiao
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
| | - C H Hu
- Animal Science College, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou, China
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Wang L, Wang Q, Lin HC, Huang P, Deng KF, Luo YW, Sun QR, Zhang QH, Wang ZY, Sun JH, Tuo Y. [Effects of Temperature on FTIR Spectral Characteristics of Renal Tissue in Rats after Death]. Fa Yi Xue Za Zhi 2018; 34:223-227. [PMID: 30051656 DOI: 10.12116/j.issn.1004-5619.2018.03.001] [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] [Received: 05/27/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To analyse the Fourier transform infrared (FTIR) spectral data of renal tissue at different temperatures in rats after death, and to explore the effects of temperature on the FTIR spectral characteristics of renal tissue. METHODS The rats were sacrificed by cervical dislocation and placed at 4 ℃, 20 ℃ and 30 ℃. The FTIR spectral data of renal tissue were collected at different time points and analysed by data mining method. RESULTS The principal component analysis (PCA) results showed that there were significant trends of clustering in the samples of partial time point at 4 ℃, 20 ℃ and 30 ℃. Partial least square (PLS) regression models were established with the spectral data at three temperature groups. The performance of PLS regression models in 20 ℃ and 30 ℃ groups were more superior than that in 4 ℃ group, and the stability of the model in 20 ℃ group was better than that in 30 ℃ group. CONCLUSIONS There are differences in the FTIR spectral characteristics of renal tissue of rats after death at different temperatures. Temperature has a major impact on the performance of FTIR spectral PLS regression model. Therefore, in order to improve the accuracy of postmortem interval estimation, the effects of temperature on the model should be considered in the related study by spectral method.
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Affiliation(s)
- L Wang
- School of Basic Medical Science, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China.,School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Q Wang
- Technology Division of Criminal Investigation Department, Xi'an Public Security Bureau, Xi'an 710038, China
| | - H C Lin
- College of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - P Huang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - K F Deng
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y W Luo
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Q R Sun
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Q H Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z Y Wang
- College of Forensic Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - J H Sun
- School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Y Tuo
- School of Basic Medical Science, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
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Wang ZL, Zhang QH, Li MC, Yan B, Wei TT, Peng SY, Li P, Cao LJ. [The impact of resection of skull base tumor via an endoscopic endonasal approach on the visual function of vision impaired patients and the analysis of factors affecting their visual recovery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:244-250. [PMID: 29747247 DOI: 10.3760/cma.j.issn.1673-0860.2018.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the visual outcomes of patients with visual impairment after resecting skull base tumor via an endoscopic endonasal approach, and to analyze the factors affecting visual recovery. Methods: One hundred and fifty-three patients with skull base tumor who suffered from preoperative visual impairment from Skull Base Surgery Center of Xuanwu Hospital were operated through an endoscopic endonasal approach. Both preoperative and postoperative visual function outcomes as well as factors that might have affected their visual recovery were analyzed retrospectively by Chi square test and Logistic regression analysis. Results: Complete resection was achieved in 85.6% of the patients using this technique. The rate of postoperative visual recovery in the female group (86.1%) was higher than that in the male group (73.9%), the benign group (90.2%) higher than the malignant group (20.0%), the group without optic atrophy (97.1%) higher than the one with (51.2%), and the acute group (96.6%) higher than the chronic group (80.0%). Significant differences were found between the abovementioned groups (χ(2) value was 5.849, 87.860, 79.757, 4.745, respectively, all P<0.05). The degree of optic atrophy and the property of tumors were significantly associated with visual improvement after treatment (Wold χ(2) value was 18.597 and 35.623, all P<0.001). Conclusions: Our results indicate that endoscopic endonasal surgery shows its ability both to resect skull base tumors and to improve visual function in the majority of patients. The timing of treatment for patients suffered from preoperative visual impairment should be selected in early stage before optic atrophy occurs.
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Affiliation(s)
- Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - M C Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - B Yan
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - T T Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - S Y Peng
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - P Li
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L J Cao
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Tan J, Wei XX, Zhang QH, Zhou YS. [Three-year clinical effects of a modified semi-fixed bridge on restoring a missing posterior tooth]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:314-317. [PMID: 29643532] [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: 06/08/2023]
Abstract
OBJECTIVE To observe the effects of a modified semi-fixed bridge to restore a missing posterior tooth for three years. METHODS In the study, 38 cases with a posterior tooth missed were chosen as experiment group. The inclusion criteria for these cases required that one abutment tooth be defected, and another abutment intact. The missed posterior tooth was restored with a modified semi-fixed bridge in which a metal wing retainer was applied to the intact abutment tooth and a full crown retainer was applied to the defected abutment tooth, and the non-rigid connector linked to the metal wing retainer and the pontic, while the rigid connector linked to the full crown retainer and the pontic. And 42 cases with same abutment conditions were chosen as control group. These control patients were treated with classical rigidly-fixed partial dentures. The clinical effects regarding the bridge survival, abutment conditions, and etc. were observed by examination. RESULTS The average observation time for experiment group was 40.3 months (from 9 to 60 months). One case failed with loose crown retainer after 7 months' usage. Another failed case was the same performance after 20 months' wearing. The restorations were rebounded after the inner face of crowns was treated, and they were used normally. No loose abutment and retainer, no decayed abutment teeth were found, and the marginal adaptations between retainers and abutment teeth were good. The average observation time of control group was 44.7 months(from 22 to 50 months). No secondary decays and loose abutment teeth were detected and the marginal adaptation of the retainers was good. CONCLUSION This modified semi-fixed bridge has similar survival rate and clinical effects to restore a missing posterior tooth when compared with the traditional rigidly-fixed partial dentures. But the long-term observation is required.
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Affiliation(s)
- J Tan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & National Clinical Research Center for Oral Diseases, Beijing 100081, China
| | - X X Wei
- Dental Technical Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Q H Zhang
- Dental Technical Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & National Clinical Research Center for Oral Diseases, Beijing 100081, China
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Liu Y, Zhang QH, Dong YW, You CH, Wang SQ, Li YQ, Li YY. Establishment of a hepatocyte line for studying biosynthesis of long-chain polyunsaturated fatty acids from a marine teleost, the white-spotted spinefoot Siganus canaliculatus. J Fish Biol 2017; 91:603-616. [PMID: 28691159 DOI: 10.1111/jfb.13375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Accepted: 06/05/2017] [Indexed: 06/07/2023]
Abstract
A hepatocyte line was established from the liver of white-spotted spinefoot Siganus canaliculatus to study the biosynthesis of long-chain polyunsaturated fatty acids (LC-PUFA). The cells from the line, designated S. canaliculatus hepatocyte line (SCHL), grew and multiplied well in Dulbecco's modified Eagle's medium (DMEM)-F12 medium supplemented with 20 mM 4-(2-hydroxyethyl) piperazine-1-ethanesulphonic acid (HEPES), 10% foetal bovine serum (FBS) and 0·5% rainbow trout Oncorhychus mykiss serum at 28° C, showing an epithelial-like morphology and the normal chromosome number of 48 (2n) and have been subcultured for over 60 passages. The identity of the hepatocytes was confirmed by periodic acid Schiff (PAS) staining. The mRNA expression of all genes encoding the key enzymes for LC-PUFA biosynthesis including two desaturases (Δ4 Fad and Δ6-Δ5 Fad) and two elongases (Elovl4 and Elovl5), were detected in all cells from passages 5 to 60 and their expression levels became stable after passage 35 and showed responses to various PUFA incubation. This is similar to the situation determined in the liver of S. canaliculatus that were fed diets containing different fatty acids. These results indicated that SCHL was successfully established and can provide an in vitro tool to investigate lipid metabolism and regulatory mechanisms of LC-PUFA biosynthesis in teleosts, especially marine species.
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Affiliation(s)
- Y Liu
- Marine Biology Institute & Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Q H Zhang
- Marine Biology Institute & Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Y W Dong
- Marine Biology Institute & Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - C H You
- Marine Biology Institute & Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - S Q Wang
- Marine Biology Institute & Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, China
| | - Y Q Li
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - Y Y Li
- School of Marine Sciences, South China Agricultural University, Guangzhou, China
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Chen Z, Qiu QH, Zhang QH, Zhu ZC, Peng Y, Liu H. [Skull base metastasis from differentiated thyroid carcinoma: 3 cases report and review of literature]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:881-884. [PMID: 29775008 DOI: 10.13201/j.issn.1001-1781.2017.11.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Indexed: 11/12/2022]
Abstract
Skull base metastasis from differentiated thyroid carcinoma (DTC), including papillary and follicular thyroid carcinoma, is a rare manifestation and easily misdiagnosed. In this study, we reported three cases whose initial clinical presentation was skull base metastasis complaints with the presence of silent primary sites. Based on the thyroid ultrasound and histopathology (identifying skull base and primary thyroid tumor), the final diagnoses of DTC metastasis to skull base were confirmed. Two patients underwent removal of metastasizing tumors in the skull base and primary thyroid cancer, and have respectively survived 58 months and 4 months since then. Another patient underwent tumor removal of the metastasizing skull base carcinoma leaving the primary lesion intact. However, the patient died of recurrent carcinoma after 18 months. We compared the diagnosis and treatment processes of three patients with DTC metastasis to skull base, and referenced the reported cases in the literature. In conclusion, DTC metastasis to skull base is a rare occurrence and hence easy to be misdiagnosed as primary skull base carcinoma. Clinical records, imaging tests, histopathology and immunohistochemistry are mandatory for differential diagnosis and final diagnosis. Surgical resection of both the primary and metastatic lesions is the recommended treatment. In cases where tumors are removed completely via surgery, no further treatment is necessary postoperatively when meticulously following up is in place. However, in cases where tumors are postoperative residual, radiation therapy after surgery is a feasible option.
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Qiu QH, Li N, Zhang QH, Chen Z, Huang Y, Jiang Y, Yang XT. [Clinical efficacy of endoscopic nasopharyngectomy for initially diagnosed advanced nasopharyngeal carcinoma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:365-371. [PMID: 28558456 DOI: 10.3760/cma.j.issn.1673-0860.2017.05.009] [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 clinical efficacy in patients who underwent endoscopic nasopharyngectomy for primary advanced nasopharyngeal carcinoma (NPC). Methods: Forty-five patients who underwent endoscopic nasopharyngectomy for primary advanced NPC encountered between Aug. 2007 and Sep. 2015 were retrospectively reviewed. Twenty-seven patients were male (60.0%), and 18 patients were female (40.0%), the ratio of male to female was 3∶2. The median age was 53 years old (ranged from 13 to 75 years old). The median onset time was 5 months (ranged from 1 to 72 months). TNM stage: 16 cases were at stage Ⅲ (35.6%), 29 at stage Ⅳ (64.4%); T3 16 cases (35.6%), T4 29 cases (64.4%); N0 38 cases (84.4%), N2 7 cases (15.6%). No patients were found to have distance metastasis. All patients underwent endoscopic resection of lesions. Postoperatively all the patients were treated with radiotherapy or chemoradiotherapy. Using SPSS 19.0 software, Kaplan-Meier and Log-rank test were done for the assessmen of survival rate; Cox proportional hazards model was used for the univariate analysis of prognostic factors. Results: The median follow-up was 36 months (ranged from 6 to 97 months), with 36 cases surviving (80.0%), 9 cases died (20.0%); 15 cases relapsed (33.3%). The overall 1 year survival rates (SR), 3 year SR, 5 year SR was 90.6%, 81.0%, 76.0%, respectively. The survival univariate analysis indicated the recurrence and metastasis were correlated with the survival (χ(2) value was 16.644, 6.451, respectively, all P<0.05). Conclusion: The patients who undergo endoscopic nasopharyngectomy for primary advanced NPC have better survival rate with lower recurrent rate and metastatic rate.
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Affiliation(s)
- Q H Qiu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - N Li
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Z Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Y Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Y Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266071, China
| | - X T Yang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
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Tang YJ, Dou HT, Zhang QH, Liu JJ, Yang XS. Expression of inflammatory cytokines in ovarian epithelial cancer and their correlation. J BIOL REG HOMEOS AG 2017; 31:413-418. [PMID: 28685546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study investigates the expression of interleukin (IL)-17 (IL-17A and IL-17D) and its role in ovarian epithelial tumor and its correlation with the clinical characteristics. Fifty malignant ovarian epithelial tumor specimens were collected after surgery and set as group A. Ten benign epithelioma specimens and ten normal epithelial specimens were set as group B and C, respectively. The expression of IL-17A and IL-17D in the three groups was detected using the EnVision method, and the correlation of positive expression rate with pathological type, clinical stage, presence of ascites and differentiation degree was analyzed. Group A had higher expression of IL-17A and IL-17D compared to group B and C (p less than 0.05). The expression rate was in correlation to clinical stage and differentiation degree, but in no correlation to pathological type and presence of ascites. The expression rate of malignant epithelioma in the early stage was lower than that in the late stage (p less than 0.05). Lower differentiation degree indicated higher expression rate (p less than 0.05). Pathological type and presence of ascites had no remarkable influence on the expression rate (p>0.05). Study of the expression of IL-17 provides theoretical support for the clinical treatment and prognosis prediction of ovarian epithelial tumor.
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Affiliation(s)
- Y J Tang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Shandong, China
| | - H T Dou
- Department of Obstetrics and Gynecology, Zibo Central Hospital, Shandong, China
| | - Q H Zhang
- Department of Obstetrics and Gynecology, Zibo Central Hospital, Shandong, China
| | - J J Liu
- Department of Obstetrics and Gynecology, Binzhou Medical School Affiliated Hospital of Yantai, Shandong, China
| | - X S Yang
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Shandong, China
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Zhao YP, Zhang YQ, Duan HY, Ma Y, Liang H, Zhang QH, Xue CQ, Luo B, Pan X. [Intracranial mixed germ cell tumor]. Zhonghua Yi Xue Za Zhi 2017. [PMID: 28297824 DOI: 10.3969/j.issn.1009-8291.2017.09.004] [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: 01/24/2023]
Abstract
Objective: To study intracranial mixed germ cell tumor diagnosis and reasonable treatment strategy. Methods: Clinical data of 17 patients with intracranial mixed germ cell tumor in Tsinghua university Yuquan hospital from October 2012 to October 2016 were retrospective analysed, including the characteristics of the general, the serum tumor markers of AFP, β-HCG, and CEA, imaging findings, pathological results, treatment methods and prognosis. Results: There were 10 cases of male, 7 cases of female. The average age was (11.1±5.2) years old. Nine cases were gross total resection of lesions and 8 cases were subtotal resection of lesions. Eight cases (47.1%) were without recurrence and had more than four courses of chemotherapy after surgery, of which, 7 cases belonged to the gross total resection, and 1 case belonged to the subtotal resection. Nine (52.9%) patients relapsed, including 2 cases of the gross total resection and 7 cases of the subtotal resection. Among them, 4 cases were given second operations and 6 cases obtained satisfactory therapeutic effect by chemotherapy combined radiotherapy. There were 12 of 17 patients with pathological types contain teratoma (including mature, immature or malignant teratoma) ingredients, accounting for 70.6%. The average follow-up time was (17.5±12.1) months, 4 cases (23.5%) patients died. Conclusion: The diagnosis of intracranial mixed germ cell tumors needs comprehensive consideration of tumor markers in serum or cerebrospinal fluid, chemotherapy and radiotherapy before operation and pathological results. The gross total resection helps to reduce the chances of tumor recurrence. Rational chemotherapy and radiotherapy is helpful to prognosis.
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Affiliation(s)
- Y P Zhao
- The Medical Center, Tsinghua University, Beijing 100084, China
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29
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Abstract
Objective: To study intracranial mixed germ cell tumor diagnosis and reasonable treatment strategy. Methods: Clinical data of 17 patients with intracranial mixed germ cell tumor in Tsinghua university Yuquan hospital from October 2012 to October 2016 were retrospective analysed, including the characteristics of the general, the serum tumor markers of AFP, β-HCG, and CEA, imaging findings, pathological results, treatment methods and prognosis. Results: There were 10 cases of male, 7 cases of female. The average age was (11.1±5.2) years old. Nine cases were gross total resection of lesions and 8 cases were subtotal resection of lesions. Eight cases (47.1%) were without recurrence and had more than four courses of chemotherapy after surgery, of which, 7 cases belonged to the gross total resection, and 1 case belonged to the subtotal resection. Nine (52.9%) patients relapsed, including 2 cases of the gross total resection and 7 cases of the subtotal resection. Among them, 4 cases were given second operations and 6 cases obtained satisfactory therapeutic effect by chemotherapy combined radiotherapy. There were 12 of 17 patients with pathological types contain teratoma (including mature, immature or malignant teratoma) ingredients, accounting for 70.6%. The average follow-up time was (17.5±12.1) months, 4 cases (23.5%) patients died. Conclusion: The diagnosis of intracranial mixed germ cell tumors needs comprehensive consideration of tumor markers in serum or cerebrospinal fluid, chemotherapy and radiotherapy before operation and pathological results. The gross total resection helps to reduce the chances of tumor recurrence. Rational chemotherapy and radiotherapy is helpful to prognosis.
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Affiliation(s)
- Y P Zhao
- The Medical Center, Tsinghua University, Beijing 100084, China
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30
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Zhang QH, Liu JF. [Endoscopic skull base surgery: fast development in practice]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:3-12. [PMID: 28104009 DOI: 10.3760/cma.j.issn.1673-0860.2017.01.002] [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 H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Department of Neurosurgery, Skull Base Surgery Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - J F Liu
- Department of Otorhinolaryngology Head and Neck Surgery, China-Japan Friendship Hospital, Beijing 100029, China
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Zhang QH, Xu P, Lu YX, Dou HT. Acidic and basic fibroblast growth factor expression levels in cervical cancer and their effects on tumor cell proliferation. Genet Mol Res 2016; 15:gmr-15-04-gmr.15049043. [PMID: 27966750 DOI: 10.4238/gmr15049043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Fibroblast growth factors (FGFs) play important roles in angiogenesis, wound healing, embryonic development, and endocrine signaling pathways. Increasingly, recent studies have reported aberrant FGF expression in various malignancies. However, the involvement of FGFs in cervical carcinoma pathogenesis remains unclear. We aimed to investigate expression of acidic (aFGF) and basic FGF (bFGF) in patients with this disease, and assess their effects on cervical cancer cell proliferation. Twenty cervical cancer patients and 10 cervical intraepithelial neoplasia (CIN) patients were recruited, and 10 cancer-free individuals were included as controls. Reverse transcription-polymerase chain reaction and western blotting were employed to detect FGF mRNA and protein levels, respectively. Furthermore, HeLa cells were treated with FGFs and subjected to thiazolyl blue tetrazolium bromide assays to quantify proliferation. Compared with CIN and normal cervical tissues, aFGF and bFGF mRNA and protein levels were significantly elevated in cervical carcinomas (P < 0.05). CIN tissues exhibited higher expression of these FGFs than normal tissues (P < 0.05). Moreover, their mRNA levels were increased in advanced cancer stages (P < 0.05), although no significant difference was detected between tumors of different differentiation grades in this regard (P > 0.05). HeLa cell proliferation increased in an aFGF- and bFGF-dose-dependent manner (P < 0.05), the latter exerting a more potent proliferative influence, with its effect peaking at 75 ng/mL. aFGF and bFGF were highly expressed in cervical cancer tissues and their levels positively correlated with clinical stage. Both facilitate proliferation of cervical carcinoma cells and are implicated in cancer pathogenesis and progression.
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Affiliation(s)
- Q H Zhang
- Department of Gynecology, Central Hospital of Zibo in Shandong, Shandong, China
| | - P Xu
- Department of Gynecology, People's Hospital of ZhangQiu in Shandong Province, Shandong, China
| | - Y X Lu
- Department of Gynecology Three Ward, People's Hospital of Linyi City, Shandong, China
| | - H T Dou
- Department of Gynecology, Central Hospital of Zibo in Shandong, Shandong, China
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32
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Wang L, Hou SL, Wang GG, Zhang QH. [Diabetes insipidus as the first manifestation of Langerhans cell histiocytosis: a case report and literatures review]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:919-920. [PMID: 27801330 PMCID: PMC7364887 DOI: 10.3760/cma.j.issn.0253-2727.2016.10.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- L Wang
- Department of Oncology Ⅲ(lymphoma), Shanxi Academy of Medical Sciences Shanxi Dayi Hospital, Taiyuan 030032, China
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33
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Zhang QH, Ding XY, Wang ZL. [Exclusive endoscopic transsuprameatal approach for the pure intracanalicular acoustic neuroma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 51:726. [PMID: 27765099 DOI: 10.3760/cma.j.issn.1673-0860.2016.10.002] [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 H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100530, China
| | - X Y Ding
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100530, China
| | - Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100530, China
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Zhang QH, Jin PK, Ngo HH, Shi X, Guo WS, Yang SJ, Wang XC, Wang X, Dzakpasu M, Yang WN, Yang L. Transformation and utilization of slowly biodegradable organic matters in biological sewage treatment of anaerobic anoxic oxic systems. Bioresour Technol 2016; 218:53-61. [PMID: 27347798 DOI: 10.1016/j.biortech.2016.06.068] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/16/2016] [Accepted: 06/17/2016] [Indexed: 06/06/2023]
Abstract
This study examined the distribution of carbon sources in two anaerobic anoxic oxic (AAO) sewage treatment plants in Xi'an and investigated the transformation characteristics and utilization potential of slowly biodegradable organic matters (SBOM). Results indicated under anaerobic and aerobic conditions, SBOM could be transformed at a rate of 65% in 8h into more readily biologically utilizable substrates such as volatile fatty acids (VFAs), polysaccharides and proteins. Additionally, non-biodegradable humus-type substances which are difficult to biodegrade and readily accumulate, were also generated. These products could be further hydrolyzed to aldehyde and ketone compounds and then transformed into substances with significant oxygen-containing functional groups and utilized subsequently. The molecular weights of proteinoid substances had a wide distribution and tended to decrease over time. Long hours of microbial reaction increased the proportion of micromolecular substances. This particular increase generated significant bioavailability, which can greatly improve the efficiency of nitrogen removal.
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Affiliation(s)
- Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China
| | - P K Jin
- International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China
| | - H H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia.
| | - X Shi
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - W S Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia
| | - S J Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; International Science & Technology Cooperation Center for Urban Alternative Water Resources Development, Xi'an 710055, China
| | - X Wang
- Research Center for Eco-Envrionmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - M Dzakpasu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - W N Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - L Yang
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
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35
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Wang ZY, Zhao Y, Zhang QH, Jiang XJ. [Minutes of Ⅵ international workshop on endoscopic ear surgery]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 51:544. [PMID: 27480306 DOI: 10.3760/cma.j.issn.1673-0860.2016.07.013] [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)
- Z Y Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai 200092, China
| | - Y Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Huaxi Hospital, Sichuan University, Chengdu 610044, China
| | - Q H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - X J Jiang
- Department of Otorhinolaryngology Head and Neck Surgery, the First Affiliated Hospital of Chinese Medical University, Shenyang 110001, China
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Zhang QH, Yang WN, Ngo HH, Guo WS, Jin PK, Dzakpasu M, Yang SJ, Wang Q, Wang XC, Ao D. Current status of urban wastewater treatment plants in China. Environ Int 2016; 92-93:11-22. [PMID: 27045705 DOI: 10.1016/j.envint.2016.03.024] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 02/17/2016] [Accepted: 03/19/2016] [Indexed: 05/14/2023]
Abstract
The study reported and analyzed the current state of wastewater treatment plants (WWTPs) in urban China from the perspective of treatment technologies, pollutant removals, operating load and effluent discharge standards. By the end of 2013, 3508 WWTPs have been built in 31 provinces and cities in China with a total treatment capacity of 1.48×10(8)m(3)/d. The uneven population distribution between China's east and west regions has resulted in notably different economic development outcomes. The technologies mostly used in WWTPs are AAO and oxidation ditch, which account for over 50% of the existing WWTPs. According to statistics, the efficiencies of COD and NH3-N removal are good in 656 WWTPs in 70 cities. The overall average COD removal is over 88% with few regional differences. The average removal efficiency of NH3-N is up to 80%. Large differences exist between the operating loads applied in different WWTPs. The average operating loading rate is approximately 83%, and 52% of WWTPs operate at loadings of <80%, treating up to 40% of the wastewater generated. The implementation of discharge standards has been low. Approximately 28% of WWTPs that achieved the Grade I-A Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) were constructed after 2010. The sludge treatment and recycling rates are only 25%, and approximately 15% of wastewater is inefficiently treated. Approximately 60% of WWTPs have capacities of 1×10(4)m(3)/d-5×10(4)m(3)/d. Relatively high energy consumption is required for small-scale processing, and the utilization rate of recycled wastewater is low. The challenges of WWTPs are discussed with the aim of developing rational criteria and appropriate technologies for water recycling. Suggestions regarding potential technical and administrative measures are provided.
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Affiliation(s)
- Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China; School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China.
| | - W N Yang
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - H H Ngo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia.
| | - W S Guo
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology, Sydney, PO Box 123, NSW 2007, Australia
| | - P K Jin
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Mawuli Dzakpasu
- School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - S J Yang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - Q Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
| | - D Ao
- Key Lab of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an 710055, China
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Wang ZL, Zhang QH, Li MC, Yan B, Lv HL, Liu JQ, Xu C. [The application of radiofrequency ablation in the resection of lateral skull base tumor through an endoscopic endonasal approach]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:856-860. [PMID: 29797927 DOI: 10.13201/j.issn.1001-1781.2016.11.004] [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: 04/01/2016] [Indexed: 11/12/2022]
Abstract
Objective:To summarize our experience of resecting tumors in lateral skull base via a radiofrequency ablation-assisted endoscopic approach to investigate the safety and feasibility of the technique and to assess its treatment outcomes.Method:Twelve patients with lateral skull base tumor were operated through a radiofrequency ablationassisted endoscopic transnasal or transoral approach. In this study, the operative technique was described,and the degree of resection, complications and the clinical outcomes was analyzed.Result:Complete resection was achieved in all patients using this technique. No patient in the series experienced a new neurological deficit, cerebrospinal fluid leak or meningitis after surgery. One patient suffered from dissecting aneurysm on 4th day after operation. And the dissecting aneurysm were treated by vascular interventional therapy. No recurrence and death related skull base tumor in the follow-up period(28-30 months) were found. The volume of intraoperative blood loss was from 60 ml to 500 ml(medium 190 ml). The duration of operations was from 60 min to 180 min(medium 95 min).Conclusion:Our limited experience indicates that this technique is feasible and safe for the complete resection of some skull base tumors in selected cases.
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Affiliation(s)
- Z L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053,China
| | - Q H Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - M C Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing
| | - B Yan
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053,China
| | - H L Lv
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053,China
| | - J Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053,China
| | - C Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053,China
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Affiliation(s)
- You Cai Xiao
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
| | - Yi Sun
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
| | - X. Li
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
| | - Q. H. Zhang
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
| | - S. W. Liu
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
| | - H. Yang
- Department of Astronautic Science and Mechanics; Harbin Institute of Technology; Harbin 150001 P. R. China
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Abstract
Identification of epigenetic alterations in tumors has become a common method for identifying genes critical to cancer development and progression. Thus, we identified DNA methylation alterations on the genome scale during lung adenocarcinoma (LADC) progression to understand the carcinogenic process and identify clinically relevant biomarkers. We found that epigenetic alterations in LADC mainly occur during the early stage of LADC progression, and there are no significant methylation differences between early-stage and late-stage LADCs. This suggests that DNA methylation alterations characterize a turning point of early events in LADC progression. By comparing DNA methylation between early-stage LADCs and normal lung tissues, we further identified 940 genes with significant alterations in DNA methylation. Sixty-seven genes were found to exhibit strong correlation between methylation alterations and expression changes, based on associated gene expression data. According to gene ontology analysis, these genes are involved in lung development, respiratory system development, cell cycle, histidine metabolism, the Wnt signaling pathway, and the p53 signaling pathway. We also found that genes on chromosome 18 most frequently showed promoter hypermethylation. Moreover, we found that LADC-associated DNA hypomethylation occurred preferentially at neither histone H3 lysine 4 nor histone H3 lysine 27 mark domains in human embryonic stem cells (NMDs) and that hypomethylation of NMDs was associated with a poor prognostic signature in LADC. Our findings have important implications for LADC progression because of the identification of novel epigenetic biomarkers potentially involved in early-stage LADC and for establishing the importance of NMD DNA hypomethylation for predicting prognosis in LADC.
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Affiliation(s)
- Q H Zhang
- School of Information Science and Technology, Sun Yat-Sen University, Higher Education Mega Center, Guangzhou, China
| | - X H Dai
- SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China
| | - Z M Dai
- SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China
| | - Y N Cai
- SYSU-CMU Shunde International Joint Research Institute, Shunde, Guangdong, China
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40
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Zhang QH, Zhai Z, Nie ZH, Harjo S, Cong DY, Wang MG, Li J, Wang YD. Anin situneutron diffraction study of anomalous superelasticity in a strain glass Ni43Fe18Ga27Co12alloy. J Appl Crystallogr 2015. [DOI: 10.1107/s1600576715011334] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Superelastic behavior is traditionally related to the martensitic transition with a collective transformation scenario in some shape memory alloys. A kind of quasi-linear superelasticity accompanied by a finite avalanche or confined martensitic transformation was recently found in some alloy systems with strain glass state. Here, anin situneutron diffraction technique was used to study the deformation behavior in an Ni43Fe18Ga27Co12alloy with strain glass state in order to reveal the new intrinsic physical nature of the quasi-linear superelasticity. A significant modulus softening prior to the stress-induced martensitic transformation was observed during compression in the studied alloy, which is similar to the characteristics exhibited in the tweed precursor phenomena prior to temperature-induced martensitic transformation. Moreover, the diffraction peak broadening was further shown during the elastic stage of deformation for both single-crystal and polycrystalline samples, which mainly stems from the short-range fluctuation in the strain field inside each grain based on Williamson–Hall analysis. The authors believe that there exists a spatial heterogeneity in the modulus of the confined martensitic transformation alloy.
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41
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Rao F, Deng CY, Zhang QH, Xue YM, Xiao DZ, Kuang SJ, Lin QX, Shan ZX, Liu XY, Zhu JN, Yu XY, Wu SL. Involvement of Src tyrosine kinase and protein kinase C in the expression of macrophage migration inhibitory factor induced by H2O2 in HL-1 mouse cardiac muscle cells. Braz J Med Biol Res 2013; 46:746-51. [PMID: 24036910 PMCID: PMC3854426 DOI: 10.1590/1414-431x20132936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Accepted: 06/06/2013] [Indexed: 11/22/2022] Open
Abstract
Macrophage migration inhibitory factor (MIF), a pleiotropic cytokine, plays an
important role in the pathogenesis of atrial fibrillation; however, the upstream
regulation of MIF in atrial myocytes remains unclear. In the present study, we
investigated whether and how MIF is regulated in response to the
renin-angiotensin system and oxidative stress in atrium myocytes (HL-1 cells).
MIF protein and mRNA levels in HL-1 cells were assayed using immunofluorescence,
real-time PCR, and Western blot. The result indicated that MIF was expressed in
the cytoplasm of HL-1 cells. Hydrogen peroxide (H2O2), but
not angiotensin II, stimulated MIF expression in HL-1 cells.
H2O2-induced MIF protein and gene levels increased in
a dose-dependent manner and were completely abolished in the presence of
catalase. H2O2-induced MIF production was completely
inhibited by tyrosine kinase inhibitors genistein and PP1, as well as by protein
kinase C (PKC) inhibitor GF109203X, suggesting that redox-sensitive MIF
production is mediated through tyrosine kinase and PKC-dependent mechanisms in
HL-1 cells. These results suggest that MIF is upregulated by HL-1 cells in
response to redox stress, probably by the activation of Src and PKC.
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Affiliation(s)
- F Rao
- Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong General Hospital, Department of Cardiology, Guangzhou, China
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Zhang QH, Wu SL, Chen CH, Huang J. Mutation of desmoplakin gene and assessment of right ventricle function in patients with arrhythmogenic right ventricular cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p2916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Li MY, Sun XM, Zhao GM, Huang XQ, Zhang JW, Tian W, Zhang QH. Comparison of Mathematical Models of Lactic Acid Bacteria Growth in Vacuum-Packaged Raw Beef Stored at Different Temperatures. J Food Sci 2013; 78:M600-4. [DOI: 10.1111/j.1750-3841.2012.02995.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 09/25/2012] [Indexed: 12/01/2022]
Affiliation(s)
- M. Y. Li
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - X. M. Sun
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - G. M. Zhao
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - X. Q. Huang
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - J. W. Zhang
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - W. Tian
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
| | - Q. H. Zhang
- Henan Key Lab of Meat Processing and Quality Safety Control; Henan Agricultural Univ.; Zhengzhou 450002, P.R.; China
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Su ZH, Gan J, Yu QK, Zhang QH, Liu ZH, Bao JM. High-resolution fiber optic temperature sensors using nonlinear spectral curve fitting technique. Rev Sci Instrum 2013; 84:045002. [PMID: 23635225 DOI: 10.1063/1.4802684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A generic new data processing method is developed to accurately calculate the absolute optical path difference of a low-finesse Fabry-Perot cavity from its broadband interference fringes. The method combines Fast Fourier Transformation with nonlinear curve fitting of the entire spectrum. Modular functions of LabVIEW are employed for fast implementation of the data processing algorithm. The advantages of this technique are demonstrated through high performance fiber optic temperature sensors consisting of an infrared superluminescent diode and an infrared spectrometer. A high resolution of 0.01 °C is achieved over a large dynamic range from room temperature to 800 °C, limited only by the silica fiber used for the sensor.
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Affiliation(s)
- Z H Su
- Department of Electrical and Computer Engineering, University of Houston, Houston, Texas 77204, USA
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Zhang QH, Wang XC, Xiong JQ, Chen R, Cao B. Application of life cycle assessment for an evaluation of wastewater treatment and reuse project--case study of Xi'an, China. Bioresour Technol 2010; 101:1421-1425. [PMID: 19556124 DOI: 10.1016/j.biortech.2009.05.071] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2009] [Revised: 05/23/2009] [Accepted: 05/27/2009] [Indexed: 05/28/2023]
Abstract
In order to illuminate the benefit of a wastewater treatment and reuse project, a life cycle assessment (LCA) model was proposed by combining the process-based LCA and the input-output based LCA in one framework and using energy consumption as the sole parameter for quantitative evaluation of the project. The life cycle consumption was evaluated mainly by life cycle inventory (LCI) analysis taking into account the construction phase, operation phase and demolishment phase of the project. For evaluating the life cycle benefit of treated water reuse, attention was paid to the decrease of secondary effluent discharge and water saving. As a result of comprehensive LCA analysis of a case project in Xi'an, China, it was understood that the life cycle benefit gained from treated wastewater reuse much surpassed the life cycle energy consumption. The advantage of wastewater treatment and reuse was well shown by LCA analysis using the proposed model.
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Affiliation(s)
- Q H Zhang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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Chang ZJ, Zhao X, Zhang QH, Chen DJ. Nanofibre-assisted alignment of carbon nanotubes in macroscopic polymer matrix via a scaffold-based method. EXPRESS POLYM LETT 2010. [DOI: 10.3144/expresspolymlett.2010.8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Gao LR, Zheng MH, Zhang B, Liu WB, Zhao XR, Zhang QH. Declining polychlorinated dibenzo-p-dioxins and dibenzofurans levels in the sediments from Dongting Lake in China. Chemosphere 2008; 73:S176-S179. [PMID: 18457858 DOI: 10.1016/j.chemosphere.2007.06.094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/14/2007] [Indexed: 05/26/2023]
Abstract
Dongting Lake is the second largest freshwater lake in China. Technical sodium pentachlorophenate (Na-PCP) had been sprayed since 1960s to control the spread of snailborne schistosomiasis up to the middle of 1990s. As one of the by-products of Na-PCP, polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) may enter the environment. It has been reported that the concentrations of PCDD/Fs in sediments in Dongting Lake were 130-891 pg I-TEQ g(-1) in 1995. High toxicity of sediment to exposed microorganisms and fish may be risk on environment. In order to determine the present levels of the contamination, eight sediment samples from Dongting Lake were analyzed for PCDD/Fs using HRGC-HRMS. Total I-TEQ values for these samples were at a ranged of 0.7-11 pg g(-1), with a mean value of 4.5 pg g(-1). The results show that PCDD/Fs concentrations of contemporary sediment have declined since 1995. Certain PCDD/F congeners as well as OCDD, typical for Na-PCP, predominated in lake sediment indicating that the using of PCP-Na is the main source of PCDD/Fs in the lake. These variations in levels can reflect changes in PCDD/F sources to the environment over time.
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Affiliation(s)
- L R Gao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
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Qian KC, Zhang QH, Bai NQ, Xu C, Yu Y, Cao F, Lee A, Lee TD. The effect of acidified glucose nutrient solution on preservation of platelet concentrate. Clin Lab Haematol 2008; 15:45-63. [PMID: 8472496 DOI: 10.1111/j.1365-2257.1993.tb00120.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The preservation effect of a new platelet solution--acidified glucose nutrient solution (AGN)--was tested by adding AGN to pooled platelet rich plasma (PRP) prior to preparation of platelet concentrates (PC). Each PRP unit was prepared from a unit of whole blood and four PRP of the same blood group were pooled in 400 ml volume PVC bags. Equal aliquots of each pooled PRP were made prior to preparation of PC. AGN was added to one aliquot and nothing was added to the control aliquot. Equal volume and concentration PC were then prepared and the PC were further aliquoted for storage at 22 degrees C. After five days, the parameters of platelet count, pH, aggregability and hypotonic shock response (HSR) for PC preserved in AGN plasma were better than those of the controls preserved in normal ACD plasma. The aggregability and HSR of AGN platelet concentrates recovered to baseline after two h of incubation with fresh plasma. The results of electron microscopy show that platelets preserved in AGN have less changes in morphology. The results of our work suggest that the preservation effect of AGN on PC is similar to the effect of using second generation containers or preparation of platelets from thrombocytapheresis.
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Affiliation(s)
- K C Qian
- Shanghai Blood Transfusion Center, People's Republic of China
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Wang XC, Chen R, Zhang QH, Li K. Optimized plan of centralized and decentralized wastewater reuse systems for housing development in the urban area of Xi'an, China. Water Sci Technol 2008; 58:969-975. [PMID: 18824793 DOI: 10.2166/wst.2008.456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
In an arid and water deficient urban area, such as Xi'an in the northwest region of China, gardening and forestation often use large amounts of tap water. Therefore, there is a need for treated wastewater reuse for such purpose to mitigate urban water shortage, especially in the newly developed housing area, where a high green coverage is often required for both commercial value and living condition improvement. Supply of the treated wastewater through a centralized system which has been planned and partially constructed is one measure to meet such need, but it may require an extension of the distribution system for a full coverage of the whole city area. A supplementary measure is to construct decentralized wastewater treatment and reuse (DESAR) systems in areas that are distant from the planned centralized system. In order to optimize the plan of wastewater reuse for housing development in the urban area, the authors analyzed the existing plan of centralized wastewater reuse and the envisaged plan of housing development in Xi'an urban area. A method was proposed for selection of a feasible way of reclaimed water reuse from two options, namely centralized and decentralized ones, by introducing a critical distance L0 which depends on the relationship between the cost for DESAR system installation and that for water delivery pipeline construction. If the distance from the project site to the nearest access point of the centralized system L is shorter than L0 then using reclaim water from the centralized system becomes more feasible, and otherwise DESAR system installation becomes more feasible. A distribution map was thus obtained to show an optimized plan of centralized and decentralized wastewater reuse systems for housing development in Xi'an city. An example was also given to show the advantage of a DESAR system installed.
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Affiliation(s)
- X C Wang
- Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, China.
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Hao J, Wang XW, Zhang JP, Zhang QH, Yi CH, Yu XJ, Yu JM. Correlation of cyclooxygenase-2 expression with hypoxia in non-small cell lung cancer. Histopathology 2007; 50:675-6. [PMID: 17394509 DOI: 10.1111/j.1365-2559.2007.02640.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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