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Weng XX, Zhang JC. [A case of hypereosinophilic syndrome accompanied by hepatic space-occupying lesions]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:251-254. [PMID: 38584109 DOI: 10.3760/cma.j.cn501113-20231121-00213] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Affiliation(s)
- X X Weng
- Gastroenterology Department of Xiamen Hospital of Traditional Chinese Medicine, Xiamen 361000, China
| | - J C Zhang
- Gastroenterology Department of Xiamen Hospital of Traditional Chinese Medicine, Xiamen 361000, China
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Zhang JC, Wang JH, Liu JY, Guo QW, Lin J, Shen YL, Jia KX, Cai JJ, Su GM, Fang DZ. Associations of TNF-RII rs1061622 With Post-Traumatic Stress Disorder and Their Interplays on Serum Lipids Levels in Adolescents. Psychiatry Investig 2023; 20:1045-1053. [PMID: 37997332 PMCID: PMC10678149 DOI: 10.30773/pi.2023.0089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 06/24/2023] [Accepted: 08/24/2023] [Indexed: 11/25/2023] Open
Abstract
OBJECTIVE To verify effects of rs1061622 at tumor necrosis factor-α receptor II (TNF-RII) gene (TNF-RII) on post-traumatic stress disorder (PTSD) and its interactive effects with PTSD on serum lipids levels in adolescents. METHODS PTSD was measured by PTSD Checklist-Civilian Version (PCL-C) in 699 adolescent survivors at 6 months after Wenchuan earthquake in China. A polymerase chain reaction and restriction fragment length polymorphism assay were utilized for TNF-RII rs1061622 genotyping followed by verification using DNA sequencing. Serum triglycerides (TG), total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol were tested using routine methods. RESULTS G (deoxyguanine) allele carriers had higher PCL-C scores than TT (deoxythymidine) homozygotes in female subjects. Female adolescents had higher PCL-C scores than male subjects in TT homozygotes. Predictors of PTSD prevalence and severity were different between G allele carriers and TT homozygotes. Subjects with PTSD had lower TG, TG/HDL-C, TC/HDL-C, and higher HDL-C than adolescents without PTSD in male G allele carriers. G allele carriers had higher TG/HDL-C and TC/HDL-C than TT homozygotes in male adolescents without PTSD, and lower TG and TG/HDL-C in male PTSD patients. G allele carriers had higher TG than TT homozygotes only in female adolescents without PTSD. CONCLUSION These results suggest reciprocal actions of TNF-RII rs1061622 with other factors on PTSD severity, interplays of TNF-RII rs1061622 with PTSD on serum lipid levels, and novel treatment strategies for PTSD and comorbidities of PTSD with hyperlipidemia among adolescents with different genetic backgrounds of TNF-RII rs1061622 after experiencing traumatic events.
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Affiliation(s)
- Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jin Hua Wang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jun Yi Liu
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ke Xin Jia
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jia Jing Cai
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Guo Ming Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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Ma PF, Li S, Wang GZ, Jing XS, Liu DY, Zheng H, Li CH, Wang YS, Wang YZ, Wu Y, Zhan PY, Duan WF, Liu QQ, Yang T, Liu ZM, Jing QY, Ding ZW, Cui GF, Liu ZQ, Xia GS, Wang GX, Wang PP, Gao L, Hu DS, Zhang JL, Cao YH, Liu CY, Li ZY, Zhang JC, Li CZ, Li Z, Zhao YZ. [Safety of double and a half layered esophagojejunal anastomosis in radical gastrectomy: A prospective, multi-center, single arm trial]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:977-985. [PMID: 37849269 DOI: 10.3760/cma.j.cn441530-20230301-00058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Objective: To evaluate the safety of double and a half layered esophagojejunal anastomosis in radical gastrectomy. Methods: This prospective, multi-center, single-arm study was initiated by the Affiliated Cancer Hospital of Zhengzhou University in June 2021 (CRAFT Study, NCT05282563). Participating institutions included Nanyang Central Hospital, Zhumadian Central Hospital, Luoyang Central Hospital, First Affiliated Hospital of Henan Polytechnic University, First Affiliated Hospital of Henan University, Luohe Central Hospital, the People's Hospital of Hebi, First People's Hospital of Shangqiu, Anyang Tumor Hospital, First People's Hospital of Pingdingshan, and Zhengzhou Central Hospital Affiliated to Zhengzhou University. Inclusion criteria were as follows: (1) gastric adenocarcinoma confirmed by preoperative gastroscopy;(2) preoperative imaging assessment indicated that R0 resection was feasible; (3) preoperative assessment showed no contraindications to surgery;(4) esophagojejunostomy planned during the procedure; (5) patients volunteered to participate in this study and gave their written informed consent; (6) ECOG score 0-1; and (7) ASA score I-III. Exclusion criteria were as follows: (1) history of upper abdominal surgery (except laparoscopic cholecystectomy);(2) history of gastric surgery (except endoscopic submucosal dissection and endoscopic mucosal resection); (3) pregnancy or lactation;(4) emergency surgery for gastric cancer-related complications (perforation, hemorrhage, obstruction); (5) other malignant tumors within 5 years or coexisting malignant tumors;(6) arterial embolism within 6 months, such as angina pectoris, myocardial infarction, and cerebrovascular accident; and (7) comorbidities or mental health abnormalities that could affect patients' participation in the study. Patients were eliminated from the study if: (1) radical gastrectomy could not be completed; (2) end-to-side esophagojejunal anastomosis was not performed during the procedure; or (3) esophagojejunal anastomosis reinforcement was not possible. Double and a half layered esophagojejunal anastomosis was performed as follows: (1) Open surgery: the full thickness of the anastomosis is continuously sutured, followed by embedding the seromuscular layer with barbed or 3-0 absorbable sutures. The anastomosis is sutured with an average of six to eight stitches. (2) Laparoscopic surgery: the anastomosis is strengthened by counterclockwise full-layer sutures. Once the anastomosis has been sutured to the right posterior aspect of the anastomosis, the jejunum stump is pulled to the right and the anastomosis turned over to continue to complete reinforcement of the posterior wall. The suture interval is approximately 5 mm. After completing the full-thickness suture, the anastomosis is embedded in the seromuscular layer. Relevant data of patients who had undergone radical gastrectomy in the above 12 centers from June 2021 were collected and analyzed. The primary outcome was safety (e.g., postoperative complications, and treatment). Other studied variables included details of surgery (e.g., surgery time, intraoperative bleeding), postoperative recovery (postoperative time to passing flatus and oral intake, length of hospital stay), and follow-up conditions (quality of life as assessed by Visick scores). Result: [1] From June 2021 to September 2022,457 patients were enrolled, including 355 men and 102 women of median age 60.8±10.1 years and BMI 23.7±3.2 kg/m2. The tumors were located in the upper stomach in 294 patients, mid stomach in 139; and lower stomach in 24. The surgical procedures comprised 48 proximal gastrectomies and 409 total gastrectomies. Neoadjuvant chemotherapy was administered to 85 patients. Other organs were resected in 85 patients. The maximum tumor diameter was 4.3±2.2 cm, number of excised lymph nodes 28.3±15.2, and number of positive lymph nodes five (range one to four. As to pathological stage,83 patients had Stage I disease, 128 Stage II, 237 Stage III, and nine Stage IV. [2] The studied surgery-related variables were as follows: The operation was successfully completed in all patients, 352 via a transabdominal approach, 25 via a transhiatus approach, and 80 via a transthoracoabdominal approach. The whole procedure was performed laparoscopically in 53 patients (11.6%), 189 (41.4%) underwent laparoscopic-assisted surgery, and 215 (47.0%) underwent open surgery. The median intraoperative blood loss was 200 (range, 10-1 350) mL, and the operating time 215.6±66.7 minutes. The anastomotic reinforcement time was 2 (7.3±3.9) minutes for laparoscopic-assisted surgery, 17.6±1.7 minutes for total laparoscopy, and 6.0±1.2 minutes for open surgery. [3] The studied postoperative variables were as follows: The median time to postoperative passage of flatus was 3.1±1.1 days and the postoperative gastrointestinal angiography time 6 (range, 4-13) days. The median time to postoperative oral intake was 7 (range, 2-14) days, and the postoperative hospitalization time 15.8±6.7 days. [4] The safety-related variables were as follows: In total, there were 184 (40.3%) postoperative complications. These comprised esophagojejunal anastomosis complications in 10 patients (2.2%), four (0.9%) being anastomotic leakage (including two cases of subclinical leakage and two of clinical leakage; all resolved with conservative treatment); and six patients (1.3%) with anastomotic stenosis (two who underwent endoscopic balloon dilation 21 and 46 days after surgery, the others improved after a change in diet). There was no anastomotic bleeding. Non-anastomotic complications occurred in 174 patients (38.1%). All patients attended for follow-up at least once, the median follow-up time being 10 (3-18) months. Visick grades were as follows: Class I, 89.1% (407/457); Class II, 7.9% (36/457); Class III, 2.6% (12/457); and Class IV 0.4% (2/457). Conclusion: Double and a half layered esophagojejunal anastomosis in radical gastrectomy is safe and feasible.
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Affiliation(s)
- P F Ma
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - S Li
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - G Z Wang
- Department of General Surgery, Nanyang Central Hospital, Nanyang 473000,China
| | - X S Jing
- Department of General Surgery, Nanyang Central Hospital, Nanyang 473000,China
| | - D Y Liu
- Department of General Surgery, Zhumadian Central Hospital,Zhumadian 463000, China
| | - H Zheng
- Department of General Surgery, Zhumadian Central Hospital,Zhumadian 463000, China
| | - C H Li
- Department of General Surgery, Luoyang Central Hospital,Luoyang 471000, China
| | - Y S Wang
- Department of General Surgery, Luoyang Central Hospital,Luoyang 471000, China
| | - Y Z Wang
- Department of General Surgery, The First Affiliated Hospital of Henan Polytechnic University,Jiaozuo 454000, China
| | - Y Wu
- Department of General Surgery, The First Affiliated Hospital of Henan Polytechnic University,Jiaozuo 454000, China
| | - P Y Zhan
- Department of General Surgery, The First Affiliated Hospital of Henan University,Kaifeng 475000, China
| | - W F Duan
- Department of General Surgery, The First Affiliated Hospital of Henan University,Kaifeng 475000, China
| | - Q Q Liu
- Department of General Surgery, Luohe Central Hospital,Luohe 462000, China
| | - T Yang
- Department of General Surgery, Luohe Central Hospital,Luohe 462000, China
| | - Z M Liu
- Department of General Surgery, The People's Hospital of Hebi,Hebi 458000 China
| | - Q Y Jing
- Department of General Surgery, The People's Hospital of Hebi,Hebi 458000 China
| | - Z W Ding
- Department of General Surgery, First People's Hospital of Shangqiu,Shangqiu 476000, China
| | - G F Cui
- Department of General Surgery, First People's Hospital of Shangqiu,Shangqiu 476000, China
| | - Z Q Liu
- Department of General Surgery, Anyang Tumor Hospital,Anyang 455000, China
| | - G S Xia
- Department of General Surgery, Anyang Tumor Hospital,Anyang 455000, China
| | - G X Wang
- Department of General Surgery, First People's Hospital of Pingdingshan, Pingdingshan 467000, China
| | - P P Wang
- Department of General Surgery, First People's Hospital of Pingdingshan, Pingdingshan 467000, China
| | - L Gao
- Department of Gastrointestinal Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, China
| | - D S Hu
- Department of Gastrointestinal Surgery, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450000, China
| | - J L Zhang
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - Y H Cao
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - C Y Liu
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - Z Y Li
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - J C Zhang
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - C Z Li
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - Z Li
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
| | - Y Z Zhao
- Department of General Surgery, Affiliated Tumor Hospital of Zhenzhou University(Henan Tumor Hospital), Zhengzhou 450003,China
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Zhang XH, Zhou C, Luo YM, Ge HQ, Liu HG, Wei HL, Zhang JC, Pan PH, Li XH, Zhou H, Cheng LN, Yi MQ, Zhang JR, Adila A, Peng LG, Liu Y, Pu JQ, Liu L, Feng HP, Zhou HX, Yi Q. [Clinical features and related factors of invasive pulmonary aspergillosis in patients with acute exacerbation of chronic obstructive pulmonary disease]. Zhonghua Yi Xue Za Zhi 2023; 103:1692-1699. [PMID: 37302977 DOI: 10.3760/cma.j.cn112137-20221106-02333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To study the clinical features and related factors of invasive pulmonary aspergillosis (IPA) in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Methods: This retrospective study enrolled patients hospitalized for AECOPD in ten tertiary hospitals of China from September 2017 to July 2021. AECOPD patients with IPA were included as case group, AECOPD patients without IPA were randomly selected as control group from the same hospitals and same hospitalization period as the patients with IPA using the random function in the software of Microsoft Excel 2003, at a ratio of 2∶1. The clinical characteristics, treatment and outcome were compared between the two groups. Binary logistic regression model was used to analyze the factors associated with IPA in AECOPD patients. Results: A total of 14 007 inpatients with AECOPD were included in this study, and 300 patients were confirmed to have IPA, with an incidence rate of 2.14%. According to the above matching method, 600 AECOPD patients without aspergillus infection were enrolled as the control group. The age of the case group and the control group were (72.5±9.7) and (73.5±10.3) years old, with 78.0%(n=234) male and 76.8%(n=461) male, respectively. There were no significant differences in age and gender composition between the two groups (all P>0.05). The prognosis of case group was significantly worse than that of the control group, with longer hospital stay [M(Q1,Q3)], [14 (10-20) d vs 11 (8-15) d, P<0.001], higher ICU admission rate [16.3% (49 case) vs 10.0% (60 case), P=0.006], higher in-hospital mortality [4.0% (12 cases) vs 1.3% (8 cases), P=0.011], and higher hospitalization costs (28 000 ¥ vs 13 700 ¥, P<0.001). The smoking index of the case group and proportions of patients with diabetes mellitus, chronic pulmonary heart disease in the case group were significantly higher than those in control group (all P<0.05). In terms of clinical features, the proportions of patients with cough, expectoration, purulent sputum, hemoptysis and fever in the case group were higher than those in the control group, the serum albumin was significantly lower than that in the control group, and the proportions of patients with bronchiectasis and pulmonary bullae on imaging were significantly higher than those in the control group (all P<0.05). Diabetes (OR=1.559, 95%CI: 1.084-2.243), chronic pulmonary heart disease (OR=1.476, 95%CI: 1.075-2.028), bronchiectasis (OR=1.506, 95%CI: 1.092-2.078), pulmonary bullae (OR=1.988, 95%CI: 1.475-2.678) and serum albumin<35 g/L (OR=1.786, 95%CI: 1.325-2.406) were the related factors of IPA in patients with AECOPD. Conclusions: The incidence of IPA in AECOPD patients is relatively high and the prognosis of these patients is worse. Diabetes, chronic pulmonary heart disease, bronchiectasis, pulmonary bulla, hypoproteinemia are the related factors of IPA in patients with AECOPD.
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Affiliation(s)
- X H Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C Zhou
- West China Medical College of Sichuan University, Chengdu 610041, China
| | - Y M Luo
- State Key Laboratory of Respiratory Diseases, Guangzhou Medical University, Guangzhou 510000, China
| | - H Q Ge
- Department of Respiratory and Critical Care Medicine, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310000, China
| | - H G Liu
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H L Wei
- Department of Respiratory and Critical Care Medicine, Leshan People's Hospital of Sichuan Province, Leshan 614000, China
| | - J C Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - P H Pan
- Department of Respiratory and Critical Care Medicine, Xiangya Hospital, Central South University, Changsha 410000, China
| | - X H Li
- Department of Respiratory and Critical Care Medicine, Neijiang First People's Hospital, Neijing 641000, China
| | - H Zhou
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - L N Cheng
- Department of Emergency, Jiujiang First People's Hospital, Jiujiang 332000, China
| | - M Q Yi
- Department of Emergency, Jiujiang First People's Hospital, Jiujiang 332000, China
| | - J R Zhang
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Aili Adila
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L G Peng
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Liu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Q Pu
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Chengdu University, Chengdu 610081, China
| | - H P Feng
- Department of Respiratory and Critical Care Medicine, Chengdu Sixth People's Hospital, Chengdu 610051, China
| | - H X Zhou
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Q Yi
- Sichuan Cancer Hospital, Chengdu 610042, China
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Zhang JC, Wang JH, Lin J, Su GM, Shen YL, Guo QW, Cai JJ, Liu JY, Jia KX, Fang DZ. The Waist-Hip Ratio is a Mediator Between Serum Levels of Brain-Derived Neurotrophic Factor and Its Val66Met Polymorphism in Adolescents. Diabetes Metab Syndr Obes 2023; 16:1555-1565. [PMID: 37275940 PMCID: PMC10239243 DOI: 10.2147/dmso.s412983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/26/2023] [Indexed: 06/07/2023] Open
Abstract
Aim To explore anthropometric, metabolic and dietary factors associated with and their interplays with the Val66Met polymorphism at brain-derived neurotrophic factor (BDNF) gene (Bdnf) on serum BDNF levels in adolescents. Methods Serum BDNF levels were quantified using an enzyme-linked immunosorbent assay in 644 high school students (278 males/366 females). A polymerase chain reaction and restriction fragment length polymorphism assay were utilized for Bdnf Val66Met genotyping followed by verification using DNA sequencing. Serum levels of metabolic characteristics were assayed by routine methods. The intake of macro and micronutrients was collected by a three-day food record. Results Serum BDNF levels were found to be significantly different in the subjects with different genotypes of Bdnf Val66Met (Val/Val homozygotes, 60.05 ± 28.07 ng/mL vs Val/Met heterozygotes, 56.37 ± 29.34 ng/mL vs Met/Met homozygotes, 51.32 ± 24.54 ng/mL, p = 0.022). Among the 36 tested variables, waist-hip ratio (WHR) (β = -0.163, p < 0.001), iodine intake (β = 0.132, p = 0.001), heart rate (β = 0.108, p = 0.005), high-density lipoprotein cholesterol (HDL-C) (β = 0.098, p = 0.011) and dietary fiber intake (β = 0.082, p = 0.084) were the predictor of serum BDNF levels, while SBP (β = 0.097, p = 0.013) and WHR (β = 0.091, p = 0.021) were related with Bdnf Val66Met. Moreover, WHR was observed to play a partial mediating role in the relationship between Bdnf Val66Met and serum BDNF levels (95% CI [-1.161, -0.087]) and contribute 13.05% of its total effect on serum BDNF levels. Conclusion There are interplays between WHR and Bdnf Val66Met on serum BDNF levels, which may be among the explanations for the previous heterogeneous reports and provide novel insights into the regulation of serum BDNF levels.
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Affiliation(s)
- Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Jin Hua Wang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Guo Ming Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Jia Jing Cai
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Jun Yi Liu
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Ke Xin Jia
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, People’s Republic of China
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Yin HL, Pu N, Chen QD, Zhang JC, Xu YL, Shi CY, Lyu MZ, Lou WH, Wu WC. [The beginnings and evolution of a pancreatic surgeon: a technical morphological analysis in first 5 years]. Zhonghua Wai Ke Za Zhi 2023; 61:511-518. [PMID: 37088485 DOI: 10.3760/cma.j.cn112139-20221027-00462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Objective: To explore the development of the pancreatic surgeon technique in a high-volume center. Methods: A total of 284 cases receiving pancreatic surgery by a single surgeon from June 2015 to December 2020 were retrospectively included in this study. The clinical characteristics and perioperative medical history were extracted from the medical record system of Zhongshan Hospital,Fudan University. Among these patients,there were 140 males and 144 females with an age (M (IQR)) of 61.0 (16.8) years(range: 15 to 85 years). The "back-to-back" pancreatic-jejunal anastomosis procedure was used to anastomose the end of the pancreas stump and the jejunal wall. Thirty days after discharge,the patients were followed by outpatient follow-up or telephone interviews. The difference between categorical variables was analyzed by the Chi-square test or the CMH chi-square test. The statistical differences for the quantitative data were analyzed using one-way analysis of variance or Kruskal-Wallis H test and further analyzed using the LSD test or the Nemenyi test,respectively. Results: Intraoperative blood loss in pancreaticoduodenectomy between 2015 and 2020 were 300,100(100),100(100),100(0),100(200) and 150 (200) ml,respectively. Intraoperative blood loss in distal pancreatectomy was 250 (375),100 (50),50 (65),50 (80),50 (50),and 50 (100) ml,respectively. Intraoperative blood loss did not show statistical differences in the same operative procedure between each year. The operative time for pancreaticoduodenectomy was respectively 4.5,5.0(2.0),5.5(0.8),5.0(1.3),5.0(3.3) and 5.0(1.0) hours in each year from 2015 to 2020,no statistical differences were found between each group. The operating time of the distal pancreatectomy was 3.8 (0.9),3.0 (1.5),3.0 (1.8),2.0 (1.1),2.0 (1.5) and 3.0(2.0) hours in each year,the operating time was obviously shorter in 2018 compared to 2015 (P=0.026) and 2020 (P=0.041). The median hospital stay in 2020 for distal pancreatectomy was 3 days shorter than that in 2019. The overall incidence of postoperative pancreatic fistula gradually decreased,with a incident rate of 50.0%,36.8%,31.0%,25.9%,21.1% and 14.8% in each year. During this period,in a total of 3,6,4,2,0 and 20 cases received laparoscopic operations in each year. The incidence of clinically relevant pancreatic fistula (grade B and C) gradually decreased,the incident rates were 0,4.8%,7.1%,3.4%,4.3% and 1.4%,respectively. Two cases had postoperative abdominal bleeding and received unscheduled reoperation. The overall rate of unscheduled reoperation was 0.7%. A patient died within 30 days after the operation and the overall perioperative mortality was 0.4%. Conclusion: The surgical training of a high-volume center can ensure a high starting point in the initial stage and steady progress of pancreatic surgeons,to ensure the safety of pancreatic surgery.
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Affiliation(s)
- H L Yin
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - N Pu
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - Q D Chen
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - J C Zhang
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - Y L Xu
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - C Y Shi
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - M Z Lyu
- Department of Biostatistics,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - W H Lou
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
| | - W C Wu
- Department of Pancreatic Surgery,Zhongshan Hospital,Fudan University,Shanghai 200032,China
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Yu HP, Zheng Y, Lu LX, He YJ, Liang ZJ, Zhang LX, Wang JK, Qin JW, Li B, Li CY, Wang P, Dang Z, Zhang JC, Yu XH. [Preliminary study on the expression of MIF in HCC tissues and its relationship with ERK1/2 signaling pathway]. Zhonghua Nei Ke Za Zhi 2022; 61:1228-1233. [PMID: 36323564 DOI: 10.3760/cma.j.cn112138-20220502-00334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the expression of Macrophage migration-inhibitory factors (MIF) in hepatocellular carcinoma (HCC) tissues and its interaction with ERK1/2 signaling pathway, so as to establish a theoretical basis for further studying the molecular mechanism of MIF promoting HCC. Methods: From February 2020 to August 2021, 52 cases of hepatocellular carcinoma (HCC) tissues based on hepatitis B cirrhosis (HBV-LC) and 52 cases of adjacent tissues in Tianjin Medical University Cancer Hospital and 940th Hospital of Joint Logistic Support Force of PLA were collected as the experimental group, including 39 males and 13 females, aged 35-65 years. And 20 cases of normal liver tissue were selected as the control group. Immunohistochemistry was used to detect the expression of MIF, ERK1/2 and p-ERK1/2 proteins in liver tissues of the two groups, and in situ hybridization was used to detect the expression of ERK1/2 nucleic acid in liver tissues of the two groups.HepG2 HCC cells and L-02 normal hepatocytes were co-cultured with different concentrations of rMIF, the expression and phosphorylation levels of ERK1/2 and JNK1 proteins in the two kinds of liver cells were detected by Western-blot, and the expression levels of ERK1/2 nucleic acids in the two kinds of liver cells were detected by RT-PCR. One-way ANOVA was used for measurement data and χ2 test was used for counting data. Results: The expressions of MIF, ERK1/2, p-ERK1/2 and ERK1/2 mRNA were significantly increased in HCC and para-cancer tissues (the expression of MIF in HCC group was 78.8%, and that in adjacent group was 75.0%; ERK1/2 80.8% in HCC group and ERK1/2 71.8% in paracancerous group. The expression of p-ERK1/2 75.0 % in HCC group and 46.2% in paracancerous group were respectively detected. ERK1/2 mRNA was expressed in HCC group 76.9%, ERK1/2 mRNA expression in paracancerous group 78.8%), and the differences were statistically significant compared with normal liver tissues (P<0.05), but there was no significant difference between HCC and para-cancer tissues (P>0.05). The expressions of ERK1/2, p-ERK1/2 and ERK1/2 mRNA in HepG2 HCC cells were significantly increased with the increase of rMIF concentration, and the increase was most obvious when rMIF concentration was 200 ng/ml, and the difference was statistically significant compared with L-02 normal hepatocytes (P<0.05). Conclusion: MIF, ERK1/2 and p-ERK1/2 are highly expressed in HCC tissues and HepG2 HCC cells, suggesting that MIF promotes the occurrence and development of hepatocellular carcinoma through ERK1/2 signaling pathway.
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Affiliation(s)
- H P Yu
- Department of Interventional Therapy, Cancer Hospital of Tianjin Medical University, National Clinical Medical Research Center for Cancer, Tianjin Municipal Key Laboratory of Cancer Prevention and Therapy, Tianjin Municipal Clinical Medical Research Center for Cancer, Tianjin 300060, China
| | - Y Zheng
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - L X Lu
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Y J He
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Z J Liang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - L X Zhang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - J K Wang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - J W Qin
- Liver and Gallbladder Surgery, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - B Li
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - C Y Li
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - P Wang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - Z Dang
- Liver and Gallbladder Surgery, the 940th Hospital of Joint Logistics Support Force of PLA, Lanzhou 730050, China
| | - J C Zhang
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
| | - X H Yu
- Department of Gastroenterology, the 940th Hospital of Joint Logistics Support Force of PLA,Lanzhou 730050, China
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Sun YJ, Tian LL, Liu JR, Zhang JC, Ge J. [Unilateral internal laryngocele: report of two cases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1000-1002. [PMID: 36058670 DOI: 10.3760/cma.j.cn115330-20211128-00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y J Sun
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China Department of Otorhinolaryngology Head and Neck Surgery, the Fourth hospital of Harbin, Harbin 150020, China
| | - L L Tian
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - J R Liu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - J C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Jingchun Ge
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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Kong LN, Shen YL, Chen YL, Chen X, Su GM, Wang JH, Xiao GB, Guo QW, Zhang JC, Fang DZ, Lin J. Insertion/deletion polymorphism at angiotensin-converting enzyme gene in PTSD individuals and their reciprocal effects on blood pressure. Clin Exp Hypertens 2021; 44:208-214. [PMID: 34935564 DOI: 10.1080/10641963.2021.2018598] [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] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The aim of the present study was to investigate relationships between insertion/deletion (I/D) polymorphism at angiotensin-converting enzyme gene (ACE) and post-traumatic stress disorder (PTSD), as well as their interactions on blood pressure. METHODS Variants of ACE I/D were identified by polymerase chain reaction method and verified by DNA sequencing. PTSD symptoms were assessed by the PTSD Checklist-Civilian Version (PCL-C) based on DSM-IV-TR criteria among high school students at 6 months after the 2008 Wenchuan earthquake. RESULTS Female subjects were found to have higher prevalence of PTSD and PCL-C scores than male counterparts in the II homozygotes (p = .038 for PTSD and p = .003 for PCL-C scores) and the ID heterozygotes (p = .000 for PTSD and p = .000 for PCL-C scores), but not in the DD homozygotes. Male subjects with the ID (p = .046) or the DD genotype (p = .039) had lower pulse pressure (PP) than the male II homozygotes, while the female II homozygotes had lower diastolic blood pressure (DBP) than the female DD homozygotes (p = .036). ACE I/D, PTSD, or PCL-C scores, as well as gender and BMI, were found to be the predictors of PP. CONCLUSIONS These results indicate that there are interactions of ACE I/D and PTSD, together with gender and BMI, on PP. This finding may be the additional explanation for the heterogeneous relationships between PTSD and blood pressure, and suggest psychiatry care and different medication strategies for patients with comorbidities of PTSD and hypertension and with different genotypes of ACE I/D.
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Affiliation(s)
- Ling Nan Kong
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yong Li Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Xu Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Guo Ming Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jin Hua Wang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Gui Bang Xiao
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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Abstract
BACKGROUND Although the association of cannabis use with automobile accidents has been well-studied, the impact of cannabis on workplace safety and injuries is less clear. AIMS The purpose of this study was to examine the relationship between work-related injury and cannabis use in the past year. METHODS We performed a cross-sectional analysis of the Canadian Community Health Survey (2013-16) of working individuals. We used multiple logistic regression modelling to calculate the odds of experiencing a work-related injury (defined as non-repetitive strain injury) among workers who reported using cannabis more than once during the prior 12 months as compared to non-users. We repeated the analysis among participants working in high injury risk occupational groups only. RESULTS Among the 136 536 working participants, 2577 (2%) had a work-related injury in the last 12 months. Of these 2577 who had a work-related injury, 4% also reported being a cannabis user in the same period. We found no association between past-year cannabis use and work-related injury (odds ratio for work injury among users 0.81, 95% confidence interval 0.66-0.99). The association was unchanged in the subgroup analysis limited to high injury risk occupational groups. CONCLUSIONS We found no evidence that cannabis users experienced higher rates of work-related injuries. While awaiting prospective studies, occupational medicine practitioners should take a risk-based approach to drafting workplace cannabis policies.
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Affiliation(s)
- J C Zhang
- Department of Occupational Medicine, University of Toronto, Toronto, Ontario, Canada
| | - N Carnide
- Institute for Work & Health, Toronto, Ontario, Canada
| | - L Holness
- Department of Occupational Medicine, University of Toronto, Toronto, Ontario, Canada.,Centre for Research Expertise in Occupational Disease, Toronto, Ontario, Canada
| | - P Cram
- Division of General Internal Medicine and Geriatrics, Sinai Health System and University Health Network, Toronto, Ontario, Canada.,Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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Zhang JC. [Consideration for impacts of periodontitis on systemic health]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:507-509. [PMID: 34098664 DOI: 10.3760/cma.j.cn112144-20210314-00117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The common chronic disorders in the world, such as cardiovascular diseases, diabetes mellitus, cancers, etc., are all the multi-factorial diseases. They are caused by the interactions of various risk factors among which inflammation plays an important role in the pathogenesis of all these chronic disorders. Any factor which contributes or enhances systemic inflammatory burdens may serve as the risk factors of these diseases. During periodontitis, the bacteremia and subsequent systemic dispersal of periodontal pathogens and bacterial components may elicit production of pro-inflammatory immune mediators, and the pro-inflammatory immune mediators produced locally at the periodontal lesion may also enter the systemic circulation. Behaving as a potential source for increased chronic systemic inflammatory challenge, periodontitis contributes as the risk factor of these systemic inflammation associated chronic diseases.
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Affiliation(s)
- J C Zhang
- Arrail Dental Group, Beijing 100012, China
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Liu XB, Gao ZY, Jin S, Gao B, Wang MS, Wu T, Li SB, Tong Q, Zhang JC. [Comparative study on metagenomics of esophageal flora in elderly and middle-aged esophageal squamous cell carcinoma patients]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:371-378. [PMID: 33730830 DOI: 10.3760/cma.j.cn112150-20200707-00984] [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 explore the flora characteristics and differences of esophageal tissues between elderly esophageal squamous cell carcinoma (ESCC) patients and young and middle-aged ESCC patients, so as to assist in studying the potential biomarkers of elderly ESCC patients. Methods: In this study, a retrospective study was adopted. 72 ESCC patients diagnosed in Taihe Hospital, Shiyan City, Hubei Province from July 2018 to July 2019 were selected, including 49 patients in the elderly group (≥ 60 years old, 40 males and 9 females), 23 patients in the young and middle-aged group (<60 years old, 21 males and 2 females). In the same period, 20 healthy persons without abnormal gastroscopy in endoscopy center were selected as the control group (aged 35-78 years old, median age 57 years old, 16 males and 4 females). The genomic DNA was extracted from the affected esophageal tissues of patients with ESCC and the middle esophageal samples of the control group. The V4 hypervariable region of bacterial 16SrRNA gene sequence was amplified. Illumina HiSeq sequencing technology was adopted. The flora characteristics of elderly, young and middle-aged ESCC patients was compared and analyzed. QIIME and Rstudio software were used to analyze the sequence data, and nonparametric Kruskal-Wallis test or Wilcoxon rank sum test were used for statistical methods. Results: Shannon index [5.17 (4.53, 5.95) vs. 4.79 (3.74, 5.97)], Simpson index [0.94 (0.91, 0.96) vs. 0.92 (0.83, 0.96)] and Chao1 index [343.55 (259.76, 570.59) vs. 329.16 (268.88, 648.00)] were similar in flora of two groups, and there was no significant difference (Z=-0.791, -1.057, -0.380, all P>0.05). There was no significant difference in β-diversity between the elderly group and the young and middle-aged group (PC1=19.14%, PC2=6.95%, PPC1=0.67, PPC2=0.42). At the phyla level, the top 5 phyla in abundance were as follows: Firmicutes, Bacteroidetes, Proteobacteria, Actinobacteria and Fusobacteria in the young and middle-aged group, while the top 5 phyla in abundance were as follows: Firmicutes, Bacteroidetes, Proteobacteria, Fusobacteria and Actinobacteria in the elderly group; the significant difference between the two groups was Fusobacteria (Q=0.596, P<0.05). At the genus level, the top 5 genera in the young and middle-aged group in abundance were as follows: Prevotella, Bacteroides, Streptococcus, Selenomonas and Veillonella. In the elderly group, Prevotella, Bacteroides, Streptococcus, Selenomonas and Haemophilus were the top 5 in abundance, and there were significant difference in Fusobacterium between the two groups (Q=0.938, P<0.05). PICRUSt function prediction showed that the abundance of Aminoacyl.tRNA.biosynthesis, Nucleotide.excision.repair, RNA.polymerase, Ribosome, Clavulanic.acid.biosynthesis, Photosynthesis and Photosynthesis. proteins in the elderly group were lower than those in the young and middle-aged group (all Q=0.734, P<0.05). Conclusion: There is no significant difference in α-diversity and β-diversity between elderly ESCC patients and young and middle-aged patients, but the abundance of Fusobacterium flora increased.
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Affiliation(s)
- X B Liu
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Z Y Gao
- Department of Oncology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - S Jin
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - B Gao
- Department of Laboratory, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - M S Wang
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - T Wu
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - S B Li
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Q Tong
- Department of Gastroenterology, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - J C Zhang
- Department of Laboratory, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
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Zhang Y, Wang YG, Zhang JC, Zhang YT, Liang JX, Mu JS. [The application of Voriconazole in 76 patients with cirrhosis at Child-Pugh C stage complicated by invasive fungal infection]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:137-142. [PMID: 33685082 DOI: 10.3760/cma.j.cn501113-20190813-00302] [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 investigate the safety and efficacy of voriconazole in the patients with cirrhosis at Child-Pugh C stage complicated by invasive fungal infection(IFI). Methods: A retrospective collection of medical records of 76 patients with cirrhosis at Child-Pugh C stage complicated by IFI who were admitted to our hospital, from August 2014 to August 2017 was carried out. All the 76 patients who used voriconazole to treat IFI were divided into recommended dose group for hepatic insufficiency(56 cases) and routine dose group(20cases). The two groups were observed and compared in terms of the voriconazole's plasma concentrations, the outcomes of IFI and the rate of untoward reactions. The liver functional indicators were also compared between before and after treatment each group. We used Student's t test, Z test, chi-square test, or Fisher's exact test, as appropriate, for statistical analysis. Results: Both groups had good performance and low frequencies of side effects in the treatment of IFI, but there were also significant differences in the plasma concentrations of voriconazole and the incidence of untoward reactions between the two groups(P = 0.008 and P = 0.022). There commended dose group for hepatic insufficiency had lower adverse effect rate. The levels of direct bilirubin, alanine aminotransferase and aspartate aminotransferase were significantly lower after treatment of IFI in the recommended dose group for hepatic insufficiency(P < 0.05). Conclusion: In our research, it is relatively safe and effective to use voriconazole to treat IFI in the patients with cirrhosis at Child-Pugh C stage if according to the recommended dose regimen for cirrhosis at Child-Pugh A,B stage.
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Affiliation(s)
- Y Zhang
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Y G Wang
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - J C Zhang
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - Y T Zhang
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - J X Liang
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
| | - J S Mu
- Department of Critical Care Medicine, the Fifth Medical Center of Chinese PLA General Hospital, Beijing 100039, China
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Yan WF, Sun PC, Wu G, Zhang JC. [Application of 3D-CT simulation image in the description of gastric artery variation to guide laparoscopic total gastrectomy]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:173-178. [PMID: 33508924 DOI: 10.3760/cma.j.issn.441530-20200222-00071] [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: Anatomic variations in the perigastric vessels during laparoscopic radical gastrectomy often affect the operator's judgment and prolong the operation time, and even cause accidental injury and surgical complications, and hence the safety and quality of the operation cannot be ensured. In this study, multiple slice CT was reconstructed by 3-dimensional CT simulation software (3D-CT), and 3D-CT images were used to describe the variation of celiac trunk and splenic artery before surgery. The guiding role of the different variation of vessels was analyzed for laparoscopic total gastrectomy+D2 lymph node dissection (LTG+D2LD). Methods: A retrospective cohort study was conducted. Case inclusion criteria: (1) Gastric cancer was at an advanced stage. All the patients were preoperatively examined by digestive endoscopy and 64-row enhanced CT scan, and were histopathologically diagnosed with gastric adenocarcinoma. (2) 3D-CT simulation images were reconstructed to guide the operation. (3) LTG+D2LD surgery was performed by the same surgical team. (4) Clinical data were complete, and all the patients had signed the informed consent. From 2014 to 2018, 98 patients with gastric cancer at the Gastrointestinal Surgery Department of Henan Provincial People's Hospital were enrolled. According to the Adachi classification, celiac trunk variation was divided into common type (Adachi type I) and rare type (Adachi type II-VI). According to the Natsume classification, splenic artery was classified into "flat type" and "curved type". Based on 3D-CT simulation images, variation of celiac trunk and splenic artery was described, and the differences in operation time, intraoperative blood loss and the number of postoperative retrieved lymph nodes were compared between groups with different types of arterial variation. Results: For celiac trunk, common type was found in 84 cases (86%) and rare type was found in 14 cases, including 6 cases (6%) of type II, 2 cases (2%) of type III, 2 cases (2%) of type IV, 3 cases (3%) of type V, 1 case (1%) of type VI. No other types were found. There were no statistically significant differences in clinical characteristics and number of retrieved lymph nodes between patients of the common type group and rare type group (all P>0.05). Compared with common type patients, those of rare type had longer operative time [(321.1±29.0) minutes vs. (295.1±46.5) minutes, t=2.081, P=0.040] and more intraoperative blood loss (median: 66.0 ml vs. 32.0 ml, Z=-4.974, P=0.001). For splenic artery, 41 patients (42%) were flat type and 57 patients (58%) were curved type. There were no statistically significant differences between the two groups in terms of clinical characteristics, intraoperative blood loss, operative time and number of retrieved lymph nodes (all P>0.05). Conclusions: The method of describing the variation in the perigastric vessels by 3D-CT simulation has certain clinical value in laparoscopic radical gastrectomy. The duration of LTG+D2LD is prolonged and the intraoperative blood loss is increased with the variation of celiac trunk, while the variation of splenic artery has no effect on LTG+D2LD.
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Affiliation(s)
- W F Yan
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450000, China
| | - P C Sun
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450000, China
| | - G Wu
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450000, China
| | - J C Zhang
- Department of Gastroenterology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450000, China
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Zhang JC, Tao T, Liu JQ. [PTX3 promotes proliferation, invasion and drug resistance of neuroblastoma cells in children by regulating TLR4/NF-κB signaling pathway]. Zhonghua Zhong Liu Za Zhi 2021; 43:118-125. [PMID: 33472324 DOI: 10.3760/cma.j.cn112152-20191227-00844] [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: 11/05/2022]
Abstract
Objective: To investigate the effect of pentraxin 3 (PTX3) on the proliferation, invasion and drug resistance of pediatric neuroblastoma cells and its mechanism. Methods: si-RNA (si-RNA group), si-PTX3 (si-PTX3 group), siRNA+ pcDNA3.1 (siRNA+ pcDNA3.1 group), si-PTX3+ pcDNA3.1 (si-PTX3+ pcDNA3.1 group), siRNA+ pcDNA3.1-Toll-like receptor 4 (siRNA+ pcDNA3.1-TLR4 group) and si-PTX3+ pcDNA3.1-TLR4 (si-PTX3+ pcDNA3.1-TLR4 group) were transfected into SH-SY5Y cells. Collected 32 cases of tumor tissue and cancerous tissue in children with childhood neuromaternal cells who were treated at Zhumadian center hospital from July 2016 to August 2019. Real-time fluorescent quantitative polymerase chain (RT-qPCR) reaction and immunohistochemistry experiments were used to detect the protein expressions of PTX3 in neuroblastoma tissues and normal tissues. 5-Ethynyl-2'-deoxyuridine (EdU) was used to detect the proliferation effect of PTX3 on neuroblastoma cell SH-SY5Y. Western blot experiment was used to detect the protein expression levels of vascular endothelial growth factor (VEGF), resistance-related proteins including P-glycoprotein (P-gp) and multidrug resistance-associated protein 1 (MRP-1), and invasion-related protein matrix metalloproteinase-1 (MMP-1). Results: PTX3 mRNA expressions in neuroblastoma tissues were 0.87±0.07, higher than 0.13±0.06 of normal tissues, and the differences were statistically significant (P<0.05), The expression of the immunohistochemistry test PTX3 protein was consistent with the qRT-PCR results. Compared with the si-RNA group (0.95±0.08; 1.02±0.10), the mRNA and protein expressions of PTX3 in the si-PTX3 group (0.25±0.05; 0.45±0.66) decreased, the differences were statistically significant (all P<0.05). The number of EdU positive cells, invasion rate, VEGF, MMP-1, P-gp and MRP-1 protein expressions in si-RNA group were (31.86±1.86)%, (28.12±2.96)%, (0.58±0.07), (0.44±0.06), (0.46±0.08) and (0.51±0.05), respectively, higher than (19.73±1.22)%, (8.45±1.06)%, (0.25±0.05), (0.19±0.03), (0.19±0.06) and (0.16±0.07) in si-PTX3 group, and the differences were statistically significant (all P<0.05). The Number of EdU positive cells [(19.49±1.68)%], invasion rate [(8.48±1.36)%], VEGF protein expression (0.10±0.15), P-gp (0.18±0.07) , TLR4 (0.45±0.06), p-p65 (0.25±0.05) protein expressions in si-PTX3+ pcDNA3.1 group were relatively lower compared with siRNA+ pcDNA3.1 group [(38.21±2.67)%, (26.39±2.14)%, 0.49±0.05, 0.52±0.06, 0.93±0.14 and 0.82±0.06] (all P<0.05). The number of EdU-positive cells [(62.73±5.18)%], invasion rate [(50.45±3.25)%], VEGF protein expression (2.17±0.17), P-gp (2.15±0.16), TLR4 (2.68±0.16), p-p65 (2.48±0.13) protein expressions in the siRNA+ pcDNA3.1-TLR4 group increased compared with siRNA+ pcDNA3.1 group (all P<0.05). Conclusions: Inhibition of PTX3 can inhibit the proliferation and invasion of neuroblastoma cells SH-SY5Y, and reduce drug resistance. Its mechanism may be achieved by regulating the TLR4/NF-κB signaling pathway. This result can provide a new perspective for pediatric neuroblasts tumor diagnosis and clinical treatment.
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Affiliation(s)
- J C Zhang
- Department of Neonatology, Zhumadian Central Hospital, Zhumadian 463000, China
| | - T Tao
- Department of Obstetrics and Gynecology, Henan People's Hospital, Zhengzhou 450000, China
| | - J Q Liu
- Department of Oncology, Henan People's Hospital, Zhengzhou 450000, China
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16
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Guo KF, Zhang JC, Sha ZD, Pei QX. Composition-dependent effects of oxygen on atomic structure and mechanical properties of metallic glasses. Phys Chem Chem Phys 2021; 23:1335-1342. [PMID: 33367358 DOI: 10.1039/d0cp05715k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Although minor alloying in metallic glasses (MGs) has been extensively investigated, the effect of O doping is still a debatable topic. In the present study, the atomic-level structures and mechanical properties of Zr-based MGs doped with different O contents have been analyzed using ab initio molecular dynamics simulations. It is revealed that O atoms prefer to bond to Zr atoms due to their low mixing enthalpy, and that O atoms degrade the properties of Zr-lean MGs but hardly affect the properties of Zr-rich MGs, with results suggesting a compositional dependence of O doping. For Zr-lean MGs, the fraction of full icosahedra, size of the medium-range-order clusters, Young's modulus and shear modulus decrease sharply with O content, while accompanied by a sharp increase of the non-Frank-Kasper polyhedra, and the ratio of bulk modulus to shear modulus and Poisson's ratio, indicating decreased strength and improved plasticity. For Zr-rich MGs, however, the above-mentioned structural and mechanical features experience little change or only change slightly after O doping, showing low oxygen sensitivity. It is shown that the high Zr content weakens the effect of Zr-O bonding to some extent. The present study not only sheds light on the atomic-level structures of O-doped MGs, which may provide guidelines for designing MGs with low-grade materials, but also helps to explain the previous conflicting results based on the composition-dependence effect.
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Affiliation(s)
- K F Guo
- International Center for Applied Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China.
| | - J C Zhang
- International Center for Applied Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Z D Sha
- International Center for Applied Mechanics, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Q X Pei
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore.
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Yang ZP, Lin YZ, Wu MQ, Chen JQ, Lian LH, Liao XW, Peng YM, Zhang JC, Chen L. [A case report of peri-left bundle branch pacing in a preschooler]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:74-76. [PMID: 33429491 DOI: 10.3760/cma.j.cn112148-20200315-00208] [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: 06/12/2023]
Affiliation(s)
- Z P Yang
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Y Z Lin
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - M Q Wu
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - J Q Chen
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - L H Lian
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - X W Liao
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - Y M Peng
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - J C Zhang
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
| | - L Chen
- Division of Cardiology, Provincial Hospital of Fujian Medical University, Fuzhou 350001, China
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18
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Zhang JC, Zheng YY, Tang JN, Qin B, Yang XM, Guo QQ, Guo JC, Cheng MD, Zhang ZL, Song FH, Liu ZY, Wang K, Jiang LZ, Fan L, Yue XT, Bai Y, Dai XY, Zheng RJ, Yin SS, Zhang JY. Elevated fibrinogen to platelet is associated with increased all-cause mortality among patients undergoing primary percutaneous coronary intervention. J BIOL REG HOMEOS AG 2020; 34:1401-1405. [PMID: 32933232 DOI: 10.23812/20-140-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)
- J C Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Y Y Zheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - J N Tang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - B Qin
- Translational Medical Center, First Affiliated Hospital of Zhengzhou University, China
| | - X M Yang
- Department of Cardiology, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Q Q Guo
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - J C Guo
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - M D Cheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Z L Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - F H Song
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Z Y Liu
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - K Wang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - L Z Jiang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - L Fan
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - X T Yue
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Y Bai
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - X Y Dai
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - R J Zheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - S S Yin
- Institute of Medicine, University of Zhengzhou, Henan Province, China
| | - J Y Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
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Yan WF, Wen DP, Zhang JC. [Mesogastrium theory of D2 lymphadenectomy for advanced gastric cancer: cogitation and skills]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:653-656. [PMID: 32683825 DOI: 10.3760/cma.j.cn.441530-20200423-00239] [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
D2 lymphadenectomy combined with complete mesentery excision (CME) for advanced gastric cancer in recent years was a hotspot issue in China, while its safety and effectiveness have been proved. According to the Membrane anatomy of the stomach, both surgical approach and mesogastrium interval is particularly important in Laparoscopic radical gastrectomy. We summarized and shared the following clinical experience for medical colleagues. (1) Lymph nodes of right abdominal aorta-No.7,8,9,12-should be resection as an indivisible whole. This integrity tissue above the portal vein was supposed to the end of the dorsal mesentery of stomach and the continuation of Gerota fascia. (2) No.10 (splenic hilar lymph nodes) lymphadenectomy: The surgical approach enters the Gerota fascia between the left gastric artery(LGA) and the left alongside the splenic artery. When the extent of lymphadenectomy performed to cardia and upper margin of the spleen, then the ultrasonic scalpel should excise the lymph node along the splenic artery to the splenic hilum. (3) Esophagogastric junctional cancer: There is no consensus over the type of resection and the extent of lymphadenectomy that could be a standard of care for this category.While we recommended that paraesophageal lymph node dissection and digestive tract reconstruction should be completed in 3D laparoscopy vision. (4) Infracardiac bursa(ICB): Intentional entry into the ICB provides surgeons with a landmark to identify the location of the pleura, and inferior vena cava. (5)The application of endoscopic aspirator with flushing and electrocautery. The CME concept of gastric cancer emphasizes the membrane anatomy theory rather than the regional lymph node. The precision and homogeneity of the D2 procedure therapy of gastric cancer depend on complete mesentery excision, standard the surgical process, or approach. Only in this way can we find the avascular gaps easily and perfectly cover the extent of lymph node dissection required for the D2 procedure.
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Affiliation(s)
- W F Yan
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan 450003, China
| | - D P Wen
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan 450003, China
| | - J C Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan 450003, China
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Chen X, Lin J, Kong LN, Shen YL, Chen YL, Guo QW, Zhang JC, Yang M, Fang DZ. Effects of earthquake and related environmental factors on relationship of posttraumatic stress disorder with LDLR rs5925. Sci Total Environ 2020; 714:136811. [PMID: 32018970 DOI: 10.1016/j.scitotenv.2020.136811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/17/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
To test the relationship not yet explored before among earthquake and related environmental factors, low-density lipoprotein receptor (LDLR) and posttraumatic stress disorder (PTSD), the genetic variation of LDLR rs5925 was selected and PTSD was examined by PTSD Checklist-Civilian Version (PCLC) in adolescents with different genotypes of LDLR rs5925 longitudinally at 6, 12 and 18 months after the 2008 Wenchuan earthquake. The C allele carriers were observed to have higher PTSD prevalence than the TT homozygotes in the male subjects, and higher PTSD prevalence and PCL-C scores in the female subjects only at 6 months. When compared to that at 12 months, decreased PTSD prevalence was observed at 18 months only in the female C allele carriers, but not in the female TT homozygotes or the male subjects. The potential risk factors of PTSD and predictors of PCL-C scores were different during the follow-up. LDLR rs5925 was one of the predictors for PCL-C scores at 6 and 12 months, and one of the potential factors for PTSD prevalence at 6 months. These results suggest that interactions may occur between earthquakes and other related environmental factors, which could affect the relationship of LDLR rs5925 with PTSD and be considered for individualized treatment.
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Affiliation(s)
- Xu Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ling Nan Kong
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Yi Lin Shen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Yong Li Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Mei Yang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, PR China.
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21
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Yang M, Chen X, Guo QW, Si YJ, Fan M, Su M, Zhang JC, Fang DZ, Lin J. The Leptin Gene rs7799039 Modulates the Prevalence of Posttraumatic Stress Disorder After an Earthquake in Han Chinese Adolescents. J Clin Psychiatry 2019; 81. [PMID: 31880873 DOI: 10.4088/jcp.18m12706] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 07/25/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES The study's aim was to examine the prevalence and severity of posttraumatic stress disorder (PTSD) longitudinally among high school students with different genotypes of the leptin gene (LEP) rs7799039 after the 2008 Wenchuan earthquake in China. METHODS The symptoms of PTSD were measured by the PTSD Checklist-Civilian Version (PCL-C) based on DSM-IV-TR criteria in 462 students at 6, 12, and 18 months after the earthquake. The genotypes of LEP rs7799039 were identified by polymerase chain reaction-restriction fragment length polymorphism analyses in 2018 using genomic DNA prepared in 2008 and stored at -80°C and verified by DNA sequencing. The association of LEP genotypes with PTSD was then analyzed by various statistical methods. RESULTS The AA homozygotes had higher prevalence of PTSD than the G allele carriers at 12 months (22.30% vs 10.53%, P = .013) and higher median (interquartile range [IQR]) PCL-C scores at 12 (27.00 [24.00-35.75] vs 26.00 [22.00-31.25], P = .010) and 18 months (27.00 [21.00-32.00] vs 24.00 [19.00-29.00], P = .003) post-earthquake among female subjects. Female students had higher PCL-C scores than male subjects at 6 and 12 months regardless of the genotypes but only among the AA homozygotes at 18 months (27.00 [21.00-32.00] vs 22.00 [18.00-26.00], P = .000). The potential risk factors for and predictors of PTSD severity differed at different time points during follow-up. LEP rs7799039 was a potential factor for PTSD at 12 months and a predictor of PTSD severity at 18 months post-earthquake. CONCLUSIONS An association of LEP rs7799039 with the prevalence and severity of PTSD in Chinese adolescents was observed. These results indicate that females with the LEP rs7799039 AA genotype had more severe PTSD characteristics compared to female G allele carriers, suggesting that psychosocial or pharmacologic managements may particularly be needed by these female subjects.
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Affiliation(s)
- Mei Yang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Xu Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Qi Wei Guo
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Yan Jun Si
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Mei Fan
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Mi Su
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ji Cheng Zhang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Ding Zhi Fang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
| | - Jia Lin
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University. Address: 17 Section 3, S Renmin Rd, Chengdu 610041 P. R. China. .,Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, China
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Yang F, Sun XD, Yuan L, Zhang JC, Hu JW, Liu N, Lou X, Su YF, Yu ZY, Chen JL, Li YH, Hu LD, Chen H, Jiang M. [Comparative study on the efficacy and safety between pegfilgrastim (PEG-rhG-CSF) and recombinant human granulocyte colony-stimulating factor in promoting hematopoietic recovery after allogeneic hematopoietic stem cell transplantation after hematological malignancy]. Zhonghua Xue Ye Xue Za Zhi 2019; 38:831-836. [PMID: 29166733 PMCID: PMC7364959 DOI: 10.3760/cma.j.issn.0253-2727.2017.10.002] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the efficacy and safety between Pegfilgrastim (PEG-rhG-CSF) and Recombinant human granulocyte colony stimulating factor (rhG-CSF) in hematological malignancy after allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: 157 patients after allo-HSCT were enrolled in this study from June 2015 to November 2016. Two agents of G-CSF were used to stimulate hematopoietic recovery after transplantation. There were 65 cases in PEG-rhG-CSF and 92 cases in rhG-CSF groups. Patients in PEG-rhG-CSF group were given a single subcutaneous dose of 6 mg on the first day and +8 d, while cases in rhG-CSF group were given in dose of 5 μg·kg(-1)·d(-1) by subcutaneous injection from +1 d continuing to neutrophils more than 1.5×10(9)/L, and then the indicators and survival rates in two groups after transplantation were compared. Results: ①There were no significant differences of the neutrophil implantation time[13.5 (8-12) d vs 13 (9-24) d, P=0.393] and platelet implantation time [14 (9-160) d vs 14 (9-92) d, P=0.094] between PEG-rhG-CSF and rhG-CSF groups respectively. There were no significant differences in terms of neutropenia period (P=0.435) , number of cases who got fever during neutropenia (P=0.622) , and the median time of fever in neutropenia period (P=0.460) , respectively between the two groups. There were no significant differences of erythrocyte and platelet transfusions (P=0.074, P=0.059) within 1 month after transplantation. ②There were no significant differences with regard to the incidences of acute GVHD[23.1% (15/65) vs 34.8% (32/92) , P=0.115], chronic GVHD[20.0% (13/65) vs 32.6% (32/92) , P=0.081], Ⅱ-Ⅳdegree of acute GVHD[30.0% (13/65) vs 30.4% (30/92) , P=0.287] and extensive chronic GVHD[9.2% (6/65) vs 20.7% (19/92) , P=0.135] between PEG-rhG-CSF and rhG-CSF groups. ③There were no significant differences in terms of disease free survival (DFS) (62.5% vs 61.4%, P=0.478) and overall survival (OS) (67.4% vs 67.3%, P=0.718) between PEG-rhG-CSF and rhG-CSF groups. ④There was no significant difference of the non-relapse mortality (NRM) between PEG-rhG-CSF and rhG-CSF groups[20.5% (95%CI 11.4%-37.0%) vs 32.6% (95%CI 22.2%-47.9%) , P=0.141]. The relapse rate was not statistically significant[14.9% (95%CI 7.4%-29.8%) vs 10.0% (95%CI 5.0%-20.0%) , P=0.299]. Conclusion: Compared with rhG-CSF, PEG-rhG-CSF could reduce the times of injection. There were no differences in terms of hematopoietic recovery, the incidence of GVHD, relapse rate, DFS and OS rates after allo-HSCT between two groups.
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Affiliation(s)
- F Yang
- Department of Hematopoietic Stem Cell Transplantation, Affiliated Hospital to Academy of Military Medical Sciences, Beijing 100071, China
| | | | | | | | | | | | | | | | | | | | | | | | | | - M Jiang
- Department of Hematopoietic Stem Cell Transplantation, Affiliated Hospital to Academy of Military Medical Sciences, Beijing 100071, China
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Zhang JC, Li WX, Wu L, Liu X, Zhang L. Scaffolding adapter protein Gab1 impairs bFGF-induced bio-activity via affecting PI3K-AKT pathway. J BIOL REG HOMEOS AG 2019; 33:53-62. [PMID: 30697991] [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: 06/09/2023]
Abstract
The role of Grb2-associated binder 1 (Gab1) in bFGF-activated PI3K-AKT pathway of endothelial cells remains largely unknown. To elucidate this role, a set of studies with siRNA knockdown of Gab1 was performed. Knockdown of Gab1 using siRNA was performed in fused endothelial cell line EA.hy926 and the low level of Gab1 was confirmed with quantitative R-T PCR and Western blotting. Effects of Gab1 down-regulation were examined on several aspects: bFGF-induced AKT phosphorylation, proliferation, migration and vessel tubing formation of EA.hy926 cells. The bFGF-induced AKT phosphorylation of wild-type EA.hy926 cells was both dose-dependent and time dependent with a peak at 10 ng/ml and about 30 min after bFGF treatment. The AKT activation was significantly reduced in Gab1 siRNA-treated EA.hy926 cells. The blocking of Gab1-AKT path resulted in a set of biological alterations of EA.hy926 cells: (i) reduced proliferation; (ii) impaired migration; (iii) decreased vessel tubing formation in both 2D and 3D culture. All data support that Gab1 is associated with angiogenesis function of EA.hy926 endothelium cells via PI3K-Akt signaling pathway.
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Affiliation(s)
- J C Zhang
- Department of Vascular Surgery, the First Affiliated Hospital of Fujian Medical University, Abdominal Surgery Institute of Fujian Province, Fuzhou, China
| | - W X Li
- Department of Vascular Surgery, the First Affiliated Hospital of Fujian Medical University, Abdominal Surgery Institute of Fujian Province, Fuzhou, China
| | - L Wu
- Department of Vascular Surgery, the First Affiliated Hospital of Fujian Medical University, Abdominal Surgery Institute of Fujian Province, Fuzhou, China
| | - X Liu
- Department of Vascular Surgery, the First Affiliated Hospital of Fujian Medical University, Abdominal Surgery Institute of Fujian Province, Fuzhou, China
| | - L Zhang
- Fujian Key Laboratory of Individualized Active Immunotherapy and Key Laboratory of Radiation Biology, Fujian Universities, Fuzhou, China
- Department of Radiation Oncology, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, China
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
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Zhang JC, Wu FX, Meng LL, Zeng CY, Lu YQ. [A study on the effects and safety of sequential humidified high flow nasal cannula oxygenation therapy on the COPD patients after extubation]. Zhonghua Yi Xue Za Zhi 2018; 98:109-112. [PMID: 29343034 DOI: 10.3760/cma.j.issn.0376-2491.2018.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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 and compare the effect and safety of nasal high-flow oxygen therapy (HFNCO) and noninvasive ventilation (NIV) therapy after extubation in patients with chronic obstructive pulmonary disease (COPD). Methods: All COPD patients subjected to mechanical ventilation in the Emergency Intensive Unit of the First Affiliated Hospital of Zhejiang University during January 2015 to June 2016 were included in the study. The patients were divided into two groups after extubation and HFNCO and NIV were adopted on each group respectively. Clinical indexes including the patients' general condition, blood gas analysis and pulmonary function before and after extubation, ratio of re-intubation and CT grades were collected and analyzed. Results: There was no significant difference in the incidence of aspiration (4.8% vs 8.3%), pressure sores (0 vs 8.3%) and delirium (4.8% vs 12.5%) between the two groups (all P>0.05). At 12 h after extubation, the oxygenation index of NIV group was significantly higher than that of the HFNCO group (265±29 vs 297±33; P<0.05), while no significant difference in PCO(2) (P>0.05). For 24 h and 72 h after extubation, there was no statistically significant difference in oxygenation index and PCO(2) between the both groups (P>0.05). The intensive care unit (ICU) retention time in HFNCO group was significantly lower than that in NIV group (13.7±0.8 vs 15.2±0.5; P<0.05). In addition, no significant difference between the two groups in mortality and re-intubation rate at 28 d (P>0.05) was observed. Conclusion: HFNCO is effective and safe in the treatment of COPD patients after extubation, and it is hence valuable for further clinical application.
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Affiliation(s)
- J C Zhang
- Emergency Center, First Affiliated Hospital of Zhejiang University, Hangzhou 321000, China
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Zhou TJ, Zhang JC, Lu W, Zhao F, Li XF, Chen B. [The predictive value of parathyroid hormone levels and decreases for postoperative hypocalcemia after total thyroidectomy]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:1880-1883. [PMID: 29798308 DOI: 10.13201/j.issn.1001-1781.2017.24.004] [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: 08/21/2017] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the predictive value of parathyroid hormone levels and decreases for postoperative hypocalcemia after total thyroidectomy. Method:We reviewed 71 consecutive patients who underwent total thyroidectomy, measured postoperative hypocalcemia, parathyroid hormone (PTH) values within 24 hours after surgery, divided them into subgroups accroding to hypocalcemia symptom. Combining with postoperative serum calcium,postoperative PTH values and decreases (△PTH), we used the receiver operating characteristic curve (ROC) analysis to assessment of predictive value. Result:The mean value of postoperative serum calcium, postoperative PTH and △PTH between subgroups have a significant difference (P<0.01). ROC area under the curve (AUC) of △PTH is 0.9706, with cutoff value 0.7366. AUC of postoperative PTH is 0.9580, with cutoff value 14.82 ng/L. Conclusion:The postoperative PTH and △PTH is a reliable indicator to judging postoperative hypocalcemia after total thyroidectomy.
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Affiliation(s)
- T J Zhou
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - J C Zhang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University
| | - W Lu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - F Zhao
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - X F Li
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - B Chen
- Department of Otolaryngology Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
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Li MT, Fang YF, Sun Z, Zhang JC, Lin CT. Evidence for weak collective pinning and δl pinning in topological superconductor Cu x Bi 2Se 3. J Phys Condens Matter 2018; 30:31LT01. [PMID: 29947615 DOI: 10.1088/1361-648x/aacf6a] [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: 06/08/2023]
Abstract
We investigated the vortex pinning behavior in the single crystal topological superconductor Cu0.10Bi2Se3 with a pronounced anisotropic peak effect. A weak collective pinning regime is clarified from the power-law behavior in [Formula: see text] and the small critical current density ratio of [Formula: see text] ~ 10-5 ([Formula: see text] is the critical current density, [Formula: see text] is the depairing current density). The spatial variation of the charge-carrier mean free path induced pinning is evidenced and probably results from the well-defined atomic defects. Within the framework of collective pinning theory, we computed the values of the correlated length and volume at 1.8 K, which start declining prior to the onset field of the peak effect [Formula: see text], demonstrating the vortex lattices already suffered a preferential collapse ahead of the peak effect turns up. Thus, the peak effect can be understood by elastic moduli softening near the upper critical field [Formula: see text]. We suggest Cu x Bi2Se3 is a prototype topological material for investigating the vortex pinning dynamics associated with the peak effect phenomenon.
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Affiliation(s)
- M T Li
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, D-70569 Stuttgart, Germany. Materials Genome Institute and Department of Physics, Shanghai University, Shanghai 200444, People's Republic of China
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Abstract
OBJECTIVE To investigate the effect of periodontitis on the development of kidney damage in obese mice and its possible mechanism. METHODS C57 BL/6J mice were fed high‑fat (HF) or low‑fat (LF) diet and then divided into four groups: obesity with periodontitis (HFP), obesity without periodontitis (HFC), normal mice with periodontitis (LFP) and normal mice without periodontitis (LFC). Serum indicators of renal function, namely serum total protein (TP), albumin (ALB), creatinine (Cr) and blood urea nitrogen (UREA) were measured. The histopathological examination of kidney tissues was performed. The expressions of transforming growth factor-β1 (TGF-β1), matrix metalloproteinase-2 (MMP2) and tissue inhibitors of metalloproteinases-1 (TIMP1) were detected by immunohistochemistry and real time RT-PCR. RESULTS Obesity decreased TP and ALB, and increased serum Cr and UREA levels in normal and periodontitis mice groups, as well as induced glomerular and tubulointerstitial pathologic changes. Tubulointerstitial fibrosis was more severe in HFP group. In obese mice, periodontitis caused the downregulation of MMP2, and upregulation of TIMP1 and TGF-β1 at transcriptional and translational levels. CONCLUSIONS In obese mice, periodontitis may aggravate pathological changes in the kidney. The possible mechanism might lie in downregulation of MMP2 and upregulation of MMP inhibitor, TIMP1, and TGF-β1 (Tab. 1, Fig. 4, Ref. 16).
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Yang ZP, Lin YZ, Zhang JC. [Electrocardiography interpretation and electrophysiologic characteristics of a patient with preexcitation via fasciculoventricular pathways]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:396-398. [PMID: 29804443 DOI: 10.3760/cma.j.issn.0253-3758.2018.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Li MT, Fang YF, Zhang JC, Yi HM, Zhou XJ, Lin CT. Magnetotransport study of topological superconductor Cu 0.10Bi 2Se 3 single crystal. J Phys Condens Matter 2018; 30:125702. [PMID: 29485100 DOI: 10.1088/1361-648x/aaaca1] [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: 06/08/2023]
Abstract
We report a magnetotransport study of vortex-pinning in Cu0.10Bi2Se3 single crystal. The sample is demonstrated to be in clean limit and absent of Pauli spin-limiting effect. Interestingly, the resistivity versus magnetic field shows an anomalously pronounced increase when approaching the superconducting-normal state boundary for both [Formula: see text] and [Formula: see text] configurations. We have investigated the flux-flowing behavior under various magnetic fields and temperatures, enabling us to establish its anisotropic vortex phase diagram. Our results suggest the Cu0.10Bi2Se3 can be served as one unique material for exploring exotic surface vortex states in topological superconductors.
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Affiliation(s)
- M T Li
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, D-70569 Stuttgart, Germany. Materials Genome Institute and Department of Physics, Shanghai University, Shanghai 200444, People's Republic of China
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Yang Q, Su Y, Chi C, Cherian CT, Huang K, Kravets VG, Wang FC, Zhang JC, Pratt A, Grigorenko AN, Guinea F, Geim AK, Nair RR. Ultrathin graphene-based membrane with precise molecular sieving and ultrafast solvent permeation. Nat Mater 2017; 16:1198-1202. [PMID: 29170556 DOI: 10.1038/nmat5025] [Citation(s) in RCA: 309] [Impact Index Per Article: 44.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 10/05/2017] [Indexed: 05/25/2023]
Abstract
Graphene oxide (GO) membranes continue to attract intense interest due to their unique molecular sieving properties combined with fast permeation. However, their use is limited to aqueous solutions because GO membranes appear impermeable to organic solvents, a phenomenon not yet fully understood. Here, we report efficient and fast filtration of organic solutions through GO laminates containing smooth two-dimensional (2D) capillaries made from large (10-20 μm) flakes. Without modification of sieving characteristics, these membranes can be made exceptionally thin, down to ∼10 nm, which translates into fast water and organic solvent permeation. We attribute organic solvent permeation and sieving properties to randomly distributed pinholes interconnected by short graphene channels with a width of 1 nm. With increasing membrane thickness, organic solvent permeation rates decay exponentially but water continues to permeate quickly, in agreement with previous reports. The potential of ultrathin GO laminates for organic solvent nanofiltration is demonstrated by showing >99.9% rejection of small molecular weight organic dyes dissolved in methanol. Our work significantly expands possibilities for the use of GO membranes in purification and filtration technologies.
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Affiliation(s)
- Q Yang
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
| | - Y Su
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
| | - C Chi
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
| | - C T Cherian
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
| | - K Huang
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
| | - V G Kravets
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - F C Wang
- Chinese Academy of Sciences Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - J C Zhang
- Department of Physics, University of York, York YO10 5DD, UK
| | - A Pratt
- Department of Physics, University of York, York YO10 5DD, UK
| | - A N Grigorenko
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - F Guinea
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
- Imdea Nanociencia, Faraday 9, 28015 Madrid, Spain
| | - A K Geim
- School of Physics and Astronomy, University of Manchester, Manchester M13 9PL, UK
| | - R R Nair
- National Graphene Institute, University of Manchester, Manchester M13 9PL, UK
- School of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13 9PL, UK
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Wang H, Xu J, Zhang X, Ren YL, Cheng M, Guo ZL, Zhang JC, Cheng H, Xing GL, Wang SX, Yu F, Zhao MH. Tubular basement membrane immune complex deposition is associated with activity and progression of lupus nephritis: a large multicenter Chinese study. Lupus 2017; 27:545-555. [PMID: 28954590 DOI: 10.1177/0961203317732407] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- H Wang
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - J Xu
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - X Zhang
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - Y L Ren
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - M Cheng
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - Z L Guo
- The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, PR China
| | - J C Zhang
- Jing Dong Yu Mei Kidney Disease Hospital, Beijing, PR China
| | - H Cheng
- Beijing Anzhen Hospital of Capital Medical University, Beijing, PR China
| | - G L Xing
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - S X Wang
- Laboratory of Electron Microscopy, Peking University First Hospital, Beijing, PR China
| | - F Yu
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR China
- Department of Nephrology, Peking University International Hospital, Beijing, PR China
| | - M H Zhao
- Renal Division, Department of Medicine, Peking University First Hospital; Institute of Nephrology, Peking University; Key Laboratory of Renal Disease, Ministry of Health of China; Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, PR China
- Peking-Tsinghua Center for Life Sciences, Beijing, PR China
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Fan C, Yuan CY, Zhang JC, Wang XY. [Effect of thermal conductivity on apical sealing ability of 4 dental gutta-percha cones]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:110-114. [PMID: 28203015] [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: 06/06/2023]
Abstract
OBJECTIVE To investigate the effect of thermal conductivity on the apical sealing ability of different dental gutta-percha cones during the warm vertical condensation obturation. METHODS Four kinds of dental gutta-percha cones were used in this study: Bio-GP points (BP, B&L, Korea), large-tapered gutta-percha (DP, DENTSPLY, America), PROTAPER Universal gutta-percha points (DPP, DENTSPLY, America) and mtwo gutta-percha points (VP, VDW, Germany). Volume differences method was used to determine the main components and the thermal conductivity determinator was used to measure the thermal conductivity of these dental gutta-percha cones. Furthermore, 20 cones randomly selected from each kind of dental gutta-percha cones. And 10 cones of each dental gutta-percha cones, which were cut out the part of 4 mm in length from the apical end, were heated (200 °C) from the upper end without compression, and the temperature of the gutta perchacones surface was monitored in time by the infrared thermal imager during the whole heating process. In addition, the rest of the 10 cones of each dental gutta-percha cones were used to obturate the root canal in the transparent root canal resin model using warm vertical condensation technique. The cross-sectional surface was observed by stereomicroscope (× 40) at 1 mm and 3 mm from the working length and the gutta-percha obturation area proportion was measured and analyzed. The data were analyzed by one-way ANOVA. RESULTS The proportion of inorganic fillers (80.90%±1.14 %) (P<0.05) and the thermal conductivity (2.247±0.002) of DP was significantly higher than BP (79.28%±3.88%, 1.179±0.003), DPP (68.46%±5.09%, 0.604±0.001), VP (78.86%±1.87%, 1.150±0.001) (P<0.05). During the thermal obturation without compression at the setting temperature (200 °C), DP could achieve 65 °C beyond 1 mm from the heating point, and BP, DPP and VP only reached 65 °C within 1 mm. After warm vertical condensation obturation, all the groups showed increased gutta-percha obturation area proportion. At the position of WL-3, DP (96.89%±0.03%) showed significantly higher proportion of gutta-percha obturation area than BP (95.47%±0.06%), DPP (95.21%±0.03%) and VP (95.15%±0.03%) (P<0.05). CONCLUSION DP contains more inorganic fillers, possesses higher thermal conductivity, and leads a better apical sealing ability than BP,DPP and VP at the position of WL-3 during warm vertical condensation obturation.
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Affiliation(s)
- C Fan
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology,Beijing 100081,China
| | - C Y Yuan
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology,Beijing 100081,China
| | - J C Zhang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - X Y Wang
- Department of Cariology and Endodontology, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology,Beijing 100081,China
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Zhang JC. [Regarding the treatment of severe periodontitis]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:65-66. [PMID: 28253576 DOI: 10.3760/cma.j.issn.1002-0098.2017.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- J C Zhang
- Hangzhou Stomatological Hospital, University of Chinese Academy of Sciences, Hangzhou 310006, China
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Groll A, Kim K, Bhatia H, Zhang JC, Wang JH, Shen ZM, Cai L, Dutta J, Li Q, Meng LJ. Hybrid Pixel-Waveform (HPWF) Enabled CdTe Detectors for Small Animal Gamma-Ray Imaging Applications. IEEE Trans Radiat Plasma Med Sci 2017; 1:3-14. [PMID: 28516169 PMCID: PMC5431752 DOI: 10.1109/tns.2016.2623807] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This paper presents the design and preliminary evaluation of small-pixel CdTe gamma ray detectors equipped with a hybrid pixel-waveform (HPWF) readout system for gamma ray imaging applications with additional discussion on CZT due to its similarity. The HPWF readout system utilizes a pixelated anode readout circuitry which is designed to only provide the pixel address. This readout circuitry works in coincidence with a high-speed digitizer to sample the cathode waveform which provides the energy, timing, and depth-of-interaction (DOI) information. This work focuses on the developed and experimentally evaluated prototype HPWF-CdTe detectors with a custom CMOS pixel-ASIC to readout small anode pixels of 350 μm in size, and a discrete waveform sampling circuitry to digitize the signal waveform induced on the large cathode. The intrinsic timing, energy, and spatial resolution were experimentally evaluated in this paper in conjunction with methods for depth of interaction (DOI) partitioning of the CdTe crystal. While the experimental studies discussed in this paper are primarily for evaluating HPWF detectors for small animal PET imaging, these detectors could find their applications for ultrahigh-resolution SPECT and other imaging modalities.
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Affiliation(s)
- A Groll
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA (primary: )
| | - K Kim
- Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - H Bhatia
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
| | - J C Zhang
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
| | - J H Wang
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
| | - Z M Shen
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
| | - L Cai
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
| | - J Dutta
- Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Q Li
- Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - L J Meng
- Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, IL 61801 USA
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Zhang JC, Lu W, Xie XM, Pan H, Wu ZQ, Yang GT. Mild hypothermia attenuates post-resuscitation brain injury through a V-ATPase mechanism in a rat model of cardiac arrest. Genet Mol Res 2016; 15:gmr7729. [PMID: 27323115 DOI: 10.4238/gmr.15027729] [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
Although therapeutic hypothermia is an effective treatment for post-resuscitation brain injury after cardiac arrest (CA), the underlying mechanism remains unclear. Vacuolar H(+)-ATPase (V-ATPase) plays a key role in cellular adaption to a hypoxic environment. This study sought to evaluate the effect of mild hypothermia on V-ATPase and its involvement in neuroprotection after CA. Male Sprague-Dawley rats were subjected to a 6-min CA, resuscitated successfully, and then assigned to either the normothermia (NT) group or the hypothermia (HT) group. Rats were further divided into 2 subgroups based on the time of euthanasia, either 3 or 24 h after CA (NT-3 h, HT-3 h; NT-24 h, HT-24 h). Mild hypothermia was induced following CA and maintained at 33°C for 2 h. Neurologic deficit scores were used to determine the status of neurological function. Brain specimens were analyzed by TUNEL assay, western blotting, and immunohistochemistry. V-ATPase activity was estimated by subtracting total ATP hydrolysis from the bafilomycin-sensitive activity. Mild hypothermia improved the neurological outcome (HT-24 h: 34.3 ± 16.4 vs NT-24 h: 50.3 ± 17.4) and significantly decreased neurocyte apoptosis 24 h after resuscitation. Mild hypothermia significantly increased V0a1 compared to NT-3 h; V0a1 expression was associated with a decrease in the cleaved caspase 3 expression. These findings suggested that mild hypothermia inhibits CA-induced apoptosis in the hippocampus, which may be associated with reduced V-ATPase impairment. These data provide new insights into the protective effects of hypothermia in vivo.
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Affiliation(s)
- J C Zhang
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Department of Emergency, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - W Lu
- Department of Otolaryngology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X M Xie
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - H Pan
- Department of Nephrology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Z Q Wu
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - G T Yang
- Department of Emergency, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Zhou TT, Quan LL, Chen LP, Du T, Sun KX, Zhang JC, Yu L, Li Y, Wan P, Chen LL, Jiang BH, Hu LH, Chen J, Shen X. SP6616 as a new Kv2.1 channel inhibitor efficiently promotes β-cell survival involving both PKC/Erk1/2 and CaM/PI3K/Akt signaling pathways. Cell Death Dis 2016; 7:e2216. [PMID: 27148689 PMCID: PMC4917657 DOI: 10.1038/cddis.2016.119] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 04/07/2016] [Accepted: 04/11/2016] [Indexed: 12/31/2022]
Abstract
Kv2.1 as a voltage-gated potassium (Kv) channel subunit has a pivotal role in the regulation of glucose-stimulated insulin secretion (GSIS) and pancreatic β-cell apoptosis, and is believed to be a promising target for anti-diabetic drug discovery, although the mechanism underlying the Kv2.1-mediated β-cell apoptosis is obscure. Here, the small molecular compound, ethyl 5-(3-ethoxy-4-methoxyphenyl)-2-(4-hydroxy-3-methoxybenzylidene)-7-methyl-3-oxo-2,3-dihydro-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate (SP6616) was discovered to be a new Kv2.1 inhibitor. It was effective in both promoting GSIS and protecting β cells from apoptosis. Evaluation of SP6616 on either high-fat diet combined with streptozocin-induced type 2 diabetic mice or db/db mice further verified its efficacy in the amelioration of β-cell dysfunction and glucose homeostasis. SP6616 treatment efficiently increased serum insulin level, restored β-cell mass, decreased fasting blood glucose and glycated hemoglobin levels, and improved oral glucose tolerance. Mechanism study indicated that the promotion of SP6616 on β-cell survival was tightly linked to its regulation against both protein kinases C (PKC)/extracellular-regulated protein kinases 1/2 (Erk1/2) and calmodulin(CaM)/phosphatidylinositol 3-kinase(PI3K)/serine/threonine-specific protein kinase (Akt) signaling pathways. To our knowledge, this may be the first report on the underlying pathway responsible for the Kv2.1-mediated β-cell protection. In addition, our study has also highlighted the potential of SP6616 in the treatment of type 2 diabetes.
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Affiliation(s)
- T T Zhou
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - L L Quan
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L P Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - T Du
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - K X Sun
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - J C Zhang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L Yu
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Li
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - P Wan
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai, China
| | - L L Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - B H Jiang
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - L H Hu
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - J Chen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - X Shen
- CAS Key Laboratory of Receptor Research, 3th Department of Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
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Yan FL, Zhang JC, Liu CW, Zhuo N, Liu F, Zhai SQ, Wang ZG. Sample Grating Distributed Feedback Quantum Cascade Laser Array. Nanoscale Res Lett 2015; 10:406. [PMID: 26474887 PMCID: PMC4608948 DOI: 10.1186/s11671-015-1115-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 10/09/2015] [Indexed: 06/05/2023]
Abstract
A sample grating distributed feedback quantum cascade laser array aim at broad tunability and enhanced side mode suppression ratios is presented. Utilizing a sample grating dependence on emission wavelength and epitaxial side down bonding technique, the array of laser ridges exhibited three separated single mode emissions centered at 4.760, 4.721, and 4.711 μm respectively, in continuous wave at room temperature. Side mode suppression ratios of >35 dB and continuous wave output powers of >10 mW per laser ridge were obtained.
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Affiliation(s)
- F L Yan
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - J C Zhang
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - C W Liu
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - N Zhuo
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - Fq Liu
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - S Q Zhai
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
| | - Z G Wang
- Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
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Zhang HD, Yu M, Zhang JC, Sheng CH, Yan X, Han WP, Liu YC, Chen S, Shen GZ, Long YZ. Fabrication and photoelectric properties of La-doped p-type ZnO nanofibers and crossed p-n homojunctions by electrospinning. Nanoscale 2015; 7:10513-10518. [PMID: 26008851 DOI: 10.1039/c5nr02191j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
La-doped p-type ZnO nanofibers were successfully synthesized by electrospinning, followed by calcination. The microstructure and morphology of the La-doped ZnO nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. The field effect curve of individual nanofibers confirms that the resulting La-doped ZnO fibers are p-type semiconductors. The doping mechanism is discussed. Furthermore, crossed p-n homojunction nanofibers were also prepared based on electrospun La-doped p-type ZnO and n-type pure ZnO fibers. The current-voltage curve shows the typical rectifying characteristic of a p-n homojunction device. The turn-on voltage appears at about 2.5 V under the forward bias and the reverse current is impassable.
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Affiliation(s)
- H D Zhang
- College of Physics & Collaborative Innovation Center for Low-Dimensional Nanomaterials and Optoelectronic Devices, Qingdao University, Qingdao 266071, China.
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Hentschel C, Jiang L, Ebeling D, Zhang JC, Chen XD, Chi LF. Conductance measurements of individual polypyrrole nanobelts. Nanoscale 2015; 7:2301-2305. [PMID: 25594494 DOI: 10.1039/c4nr06785a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present here a study on the electrical conduction properties of individual polypyrrole nanobelts by using conductive atomic force microscopy and discuss a general effect while probing soft materials. A length-dependent analysis demonstrates that the tip could induce local defects into the polymer structure and, thus diminishes the electrical conduction.
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Affiliation(s)
- C Hentschel
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou Jiangsu 215123, P. R. China.
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Zhang JC, Zheng GF, Wu L, Ou Yang LY, Li WX. Bone marrow mesenchymal stem cells overexpressing human basic fibroblast growth factor increase vasculogenesis in ischemic rats. ACTA ACUST UNITED AC 2014; 47:886-94. [PMID: 25118628 PMCID: PMC4181224 DOI: 10.1590/1414-431x20143765] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 01/09/2014] [Accepted: 05/19/2014] [Indexed: 12/20/2022]
Abstract
Administration or expression of growth factors, as well as implantation of autologous
bone marrow cells, promote in vivo angiogenesis. This study
investigated the angiogenic potential of combining both approaches through the
allogenic transplantation of bone marrow-derived mesenchymal stem cells (MSCs)
expressing human basic fibroblast growth factor (hbFGF). After establishing a hind
limb ischemia model in Sprague Dawley rats, the animals were randomly divided into
four treatment groups: MSCs expressing green fluorescent protein (GFP-MSC), MSCs
expressing hbFGF (hbFGF-MSC), MSC controls, and phosphate-buffered saline (PBS)
controls. After 2 weeks, MSC survival and differentiation, hbFGF and vascular
endothelial growth factor (VEGF) expression, and microvessel density of ischemic
muscles were determined. Stable hbFGF expression was observed in the hbFGF-MSC group
after 2 weeks. More hbFGF-MSCs than GFP-MSCs survived and differentiated into
vascular endothelial cells (P<0.001); however, their differentiation rates were
similar. Moreover, allogenic transplantation of hbFGF-MSCs increased VEGF expression
(P=0.008) and microvessel density (P<0.001). Transplantation of hbFGF-expressing
MSCs promoted angiogenesis in an in vivo hind limb ischemia model by
increasing the survival of transplanted cells that subsequently differentiated into
vascular endothelial cells. This study showed the therapeutic potential of combining
cell-based therapy with gene therapy to treat ischemic disease.
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Affiliation(s)
- J C Zhang
- Department of Vascular Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - G F Zheng
- Department of Vascular Surgery, The People's Hospital of Ganzhou, Ganzhou, China
| | - L Wu
- Department of Vascular Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - L Y Ou Yang
- Department of Vascular Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - W X Li
- Department of Vascular Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
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41
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Wan L, Lu HB, Xuan DY, Yan YX, Zhang JC. Histological changes within dental pulps in teeth with moderate-to-severe chronic periodontitis. Int Endod J 2014; 48:95-102. [PMID: 24646359 DOI: 10.1111/iej.12282] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 04/10/2013] [Accepted: 03/13/2014] [Indexed: 12/16/2022]
Abstract
AIM To investigate the effect of chronic periodontitis on dental pulps by assessing histological changes in the pulps of teeth with moderate-to-severe periodontitis. METHODOLOGY A total of 242 teeth from 162 patients with moderate-to-severe periodontitis were collected, and histological changes in pulps were investigated by staining with haematoxylin and eosin. Baseline data were taken from the patients' records before extraction. The morphologic changes observed in the pulp were classified as degree I, degree II, degree III and degree IV. Statistical analysis of the severity of periodontitis and histological changes with the pulps was applied using the Mann-Whitney U rank sum test, whilst the contingency coefficient was used to analyse the inter-relationship between the severity of periodontitis and histological changes in the pulps. RESULTS The inter-relationship between the severity of periodontitis and histological changes in the pulps was 0.274 (P < 0.001), and significant differences existed between teeth with moderate periodontitis and severe periodontitis group (Z = 4.145, P < 0.001). The inter-relationship between attachment loss and histological changes in the pulps was 0.397 (P < 0.001). There were significant differences in the histological changes amongst teeth with various degrees of attachment loss (χ(2) = 33.023, P < 0.001) and amongst teeth in different locations (χ(2) = 23.163, P < 0.001). CONCLUSIONS There was a positive association between the severity of periodontitis and histological changes within the pulp. More attachment loss was correlated with pathological changes within the dental pulp.
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Affiliation(s)
- L Wan
- Guangdong Provincial Stomatological Hospital, Southern Medical University, Guangzhou, China
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Li MT, Chen L, Li ZW, Ryu GH, Lin CT, Zhang JC. Enhancement of phase separation and superconductivity in Mn-doped K0.8Fe2-yMnySe2 crystals. J Phys Condens Matter 2013; 25:335701. [PMID: 23880791 DOI: 10.1088/0953-8984/25/33/335701] [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
Single crystals of K0.8Fe2-yMnySe2 with slight Mn doping have been grown by a self-flux method. X-ray diffraction measurements show enhanced phase separation with increasing Mn doping in the compounds. The superconducting transition temperature increases to Tc,onset ∼ 46.1 K for the sample with y ∼ 0.03, as observed by electrical transport measurements. Our results demonstrate that the doping of Mn does not suppress the superconductivity, and on the contrary increases the superconducting shield fraction and transition temperature, an effect which may originate from the Mn dopant's high preference to fill into iron vacancies in the Mn-doped samples. It suggests that the Mn dopant can induce a local lattice strain or distortion that profitably modifies the microstructure of the superconducting/metallic phase, leading to superconductivity of the compound.
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Affiliation(s)
- M T Li
- Department of Physics, Shanghai University, Shanghai 200444, People's Republic of China
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Wang MN, Han YB, Li Q, Guo L, Yang YM, Wang W, Zhang JC. Higher serum retinol binding protein 4 may be a predictor of weak metabolic control in chinese patients with type 2 diabetes mellitus. J Int Med Res 2013; 40:1317-24. [PMID: 22971483 DOI: 10.1177/147323001204000410] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To investigate relationships between serum levels of retinol binding protein 4 (RBP4) and clinical and metabolic variables in Chinese patients with type 2 diabetes mellitus. METHODS A total of 513 patients (286 males/227 females) provided clinical and lifestyle data and blood and urine samples for analysis. Patients were stratified into four quartile groups according to serum RBP4 concentrations. RESULTS RBP4 concentration was independently associated with gender, systolic blood pressure, serum triglyceride and creatinine levels, and estimated glomerular filtration rate (eGFR). Hypertension, dyslipidaemia, micro albuminuria and impaired eGFR (<60 ml/min per 1.73 m2) were significantly more prevalent in patients with the highest RBP4 levels than in those with the lowest levels. Increased serum RBP4 was associated with increased risk of hypertension, dyslipidaemia, micro albuminuria and impaired eGFR after adjusting for gender, age, body mass index and duration of diabetes. CONCLUSION Serum RBP4 may be a useful marker of overall metabolic control in Chinese patients with type 2 diabetes mellitus.
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Affiliation(s)
- M N Wang
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Harbin Medical University and The Key Laboratory of Hormonal and Endocrine Diseases, Harbin Medical University, Harbin, Heilongjiang Province, China
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Li X, Zhou Q, Yang WB, Xiong XZ, Du RH, Zhang JC. Pleural mesothelial cells promote expansion of IL-17-producing CD8+ T cells in tuberculous pleural effusion. J Clin Immunol 2013; 33:775-87. [PMID: 23299924 DOI: 10.1007/s10875-012-9860-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Accepted: 12/26/2012] [Indexed: 11/30/2022]
Abstract
IL-17-producing CD8(+) T lymphocytes (Tc17 cells) have recently been detected in many cancers and autoimmune diseases. However, the possible implication of Tc17 cells in tuberculous pleural effusion remains unclarified. In this study, distribution and phenotypic features of Tc17 cells in both tuberculous pleural effusion (TPE) and peripheral blood from patients with tuberculosis were determined. The effects of proinflammatory cytokines and local accessory cells (pleural mesothelial cells) on Tc17 cell expansion were also explored. We found that TPE contained more Tc17 cells than the blood. Compared with IFN-γ-producing CD8(+) T cells, Tc17 cells displayed higher expression of chemokine receptors (CCRs) and lower expression of cytotoxic molecules. In particularly, Tc17 cells in TPE exhibited high expression levels of CCR6, which could migrate in response to CCL20. Furthermore, IL-1β, IL-6, IL-23, or their various combinations could promote Tc17 cell expansion from CD8(+) T cells, whereas the proliferative response of Tc17 cells to above cytokines was lower than that of Th17 cells. Pleural mesothelial cells (PMCs) were able to stimulate Tc17 cell expansion via cell contact in an IL-1β/IL-6/IL-23 independent fashion. Thus this study demonstrates that Tc17 cells marks a subset of non-cytotoxic, CCR6(+) CD8(+) T lymphocytes with low proliferative capacity. The overrepresentation of Tc17 cells in TPE may be due to Tc17 cell expansion stimulated by pleural proinflammatory cytokines and to recruitment of Tc17 cells from peripheral blood. Additionally, PMCs may promote the production of IL-17 by CD8(+) T cells at sites of TPE via cell-cell interactions.
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Affiliation(s)
- X Li
- Department of Respiratory Diseases, Key Laboratory of Pulmonary Diseases of Health Ministry, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
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Cai L, Shen ZM, Zhang JC, Chen CT, Meng LJ. First imaging result with an ultrahigh resolution stationary MR compatible SPECT system. IEEE Nucl Sci Symp Conf Rec (1997) 2012; 2012:3568-3571. [PMID: 26692275 PMCID: PMC4682676 DOI: 10.1109/nssmic.2012.6551817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this paper, we will present the design and preliminary performance of an ultrahigh resolution stationary MR compatible SPECT (MRC-SPECT) system that is developed in our lab. The MRC-SPECT system is based on the second-generation energy-resolved photon-counting (ERPC) CdTe detectors and there are several key features associated with this system. Firstly, up to a total of twenty ERPC detectors will be assembled as a very compact ring, which provides an adequate angular sampling capability and a relatively high detection efficiency. The detectors are supported on a gantry made of high strength polyamide structure constructed using 3-D printing. This compact system can be directly operated inside an MR scanner. The detector module used in this system offers an intrinsic resolution of 350μm and an excellent energy resolution of around 3~4kev. Each ERPC detector module consists of four pixelated CdTe detectors with a total dimension of 4.5cm×2.25cm. Secondly, a die-cast platinum pinhole inserts and cast lead apertures are developed for this stationary SPECT system. Four 300/500μm diameter pinholes are used for each detector and all pinholes are mounted around a casted cylinder lead aperture tube. The inner diameter of the lead aperture tube is 6cm and the lead tube thickness is 16mm. The opposite detectors are placed 15.6cm apart and the magnification factor of this SPECT system is about 1.2. Thirdly, a comprehensive charge collection model inside strong magnetic field has been developed to account for the magnetic field induced distortion in the SPECT image. This model can accurately predict the detector's energy and spatial response to gamma ray incident events and then help to compensate for the event position recording error due to the strong magnetic field. In this development, we have made an effort to minimize the amount of magnetic materials in the system to alleviate potential interference to magnetic field inhomogeneity.
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Affiliation(s)
- L Cai
- Nuclear, Plasma and Radiological Engineering in University of Illinois at Urbana-Champaign
| | - Z M Shen
- Nuclear, Plasma and Radiological Engineering in University of Illinois at Urbana-Champaign
| | - J C Zhang
- Nuclear, Plasma and Radiological Engineering in University of Illinois at Urbana-Champaign
| | - C T Chen
- Nuclear, Plasma and Radiological Engineering in University of Illinois at Urbana-Champaign
| | - L J Meng
- Nuclear, Plasma and Radiological Engineering in University of Illinois at Urbana-Champaign
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Fan WH, Liu DL, Xiao LM, Xie CJ, Sun SY, Zhang JC. Coronary heart disease and chronic periodontitis: is polymorphism of interleukin-6 gene the common risk factor in a Chinese population? Oral Dis 2010; 17:270-6. [DOI: 10.1111/j.1601-0825.2010.01736.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Xiao LM, Yan YX, Xie CJ, Fan WH, Xuan DY, Wang CX, Chen L, Sun SY, Xie BY, Zhang JC. Association among interleukin-6 gene polymorphism, diabetes and periodontitis in a Chinese population. Oral Dis 2009; 15:547-53. [DOI: 10.1111/j.1601-0825.2009.01584.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Dai L, Liu SF, Fu ZX, You LP, Zhu JJ, Lin BX, Zhang JC, Qin GG. Synthesis of GaN nanotip triangle pyramids on 3C–SiC epilayer/Si substrates via an in situ In-doping technique. J Chem Phys 2005; 122:104713. [PMID: 15836351 DOI: 10.1063/1.1861880] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
GaN nanotip triangle pyramids were synthesized on 3C-SiC epilayer via an isoelectronic In-doping technique. The synthesis was carried out in a specially designed two-hot-boat chemical vapor deposition system. In (99.999%) and molten Ga (99.99%) with a mass ratio of about 1:4 were used as the source, and pieces of Si (111) wafer covered with 400-500 nm 3C-SiC epilayer were used as the substrates. The products were analyzed by x-ray diffraction, field emission scanning electron microscopy, high-resolution transmission electron microscopy, selected area electron diffraction, Raman spectroscopy, and photoluminescence measurements. Our results show that the as-synthesized GaN pyramids are perfect single crystal with wurtzite structure, which may have potential applications in electronic/photonic devices.
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Affiliation(s)
- L Dai
- School of Physics, Peking University, Beijing 100871, China
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Zhang JC, Zhao C, Song JF. [Flow injection biamperometric analysis of isoniazid]. Yao Xue Xue Bao 2001; 36:679-82. [PMID: 12580107] [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: 02/28/2023]
Abstract
AIM To establish a simple, rapid, and accurate electrochemical method for on-line determination of isoniazid. METHODS Based on the flow injection biamperometry for irreversible couple system, and using two preanodized platinum electrodes with the applied potential difference of 0 V, the biamperometric method for the determination of isoniazid has been proposed by coupling the catalytic oxidation of isoniazid and the reduction of platinum oxide. RESULTS Common excipients, inorganic ions, amino acids, vitamins and proteins do not interfere with the determination. Linear relationship between current and the concentration of isoniazid is obtained in the range of 1.0 x 10(-6)-1.0 x 10(-4) mol.L-1 (gamma = 0.998, n = 11). The RSD of 1.8% was obtained for 8 successive determinations of 1.0 x 10(-5) mol.L-1 isoniazid. CONCLUSION The proposed method has been shown to be sensitive, selective, rapid (120 samples.h-1), and suitable for the on-line direct determination of isoniazid.
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Affiliation(s)
- J C Zhang
- Institute of Analytical Science, Northwest University, Xi'an 710069, China
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Abstract
Several reports have provided evidence that body size early in life is positively correlated with risk of subsequent breast cancer, but the biological basis for this relationship is unclear. We examined tumour incidence in transgenic mice expressing a growth hormone (GH) antagonist and in non-transgenic littermates following exposure to dimethylbenz[ a ]anthracene (DMBA), a well characterized murine mammary gland carcinogen. The transgenic animals had lower IGF-I levels, were smaller in terms of body size and weight, and exhibited decreased tumour incidence relative to controls. The demonstration that both body size early in life and breast cancer incidence are influenced by experimental perturbation of the GH-IGF-I axis in a transgenic model provides evidence that variability between individuals with respect to these hormones underlies the relationship between body size early in life and breast cancer risk observed in epidemiological studies.
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Affiliation(s)
- M Pollak
- Cancer Prevention Research Unit of the Jewish General Hospital and McGill University, Montreal, Quebec, H3T 1E2, Canada
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