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Chen JQ, Wang JW. [Imaging characteristics and diagnosis of primary middle mediastinal tumors]. Zhonghua Zhong Liu Za Zhi 2024; 46:449-456. [PMID: 38742358 DOI: 10.3760/cma.j.cn112152-20230903-00114] [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: 05/16/2024]
Abstract
Objectives: To investigate the proportion of different histological types and CT enhanced imaging features of primary middle mediastinal lesions in order to improve the understanding of these tumors and the accuracy of preoperative diagnosis. Methods: Retrospective analysis was conducted on 84 patients with primary middle mediastinal lesions and clear histological classifications diagnosed and treated at the Cancer Hospital, Chinese Academy of Medical Sciences from January 2012 to December 2022. Clinical, imaging, and pathological data were collected and classified according to tumor histological classifications. CT imaging manifestations such as tumor location, size, morphology, edge, boundary, internal components, enhancement characteristics, and surrounding tissue invasion were evaluated and recorded. Results: The histological types of the primary middle mediastinal lesions from the 84 patients included mesenchymal tumors, anterior intestinal cysts, giant lymph node hyperplasia, substernal goiter, neuroendocrine carcinoma, lymphohematopoietic system tumors, and mesothelioma, accounting for 28.6%, 27.4%, 14.3%, 3.6%, 11.9%, 9.5%, and 4.8%, respectively. Mesenchymal tumors included peripheral nerve sheath tumors, vascular tumors, adipogenic tumors, solitary fibrous tumors, and synovial sarcoma, accounting for 54.2%, 20.8%, 12.5%, 8.3%, and 4.2%, respectively. The above tumors had diverse imaging manifestations and specific imaging features. Mature fat were found in 3 cases of liposarcoma; Calcification was observed in 2 cases of thyroid nodules and 7 cases of giant lymph node hyperplasia; Enhanced scanning showed significant enhancement in 2 cases of solitary fibrous tumors, 3 cases of thyroid nodules, and 11 cases of giant lymph node hyperplasia; Mediastinal large lymph nodes was observed in 6 cases of lymphoma and 3 cases of mesothelioma; High invasiveness was observed in 4 cases of mesothelioma and 9 cases of neuroendocrine carcinoma. Conclusion: Mediastinal tumors have low incidence rate and rich histological types, and their imaging manifestations are diverse. Preoperative differential diagnosis can be made according to their specific imaging characteristics.
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Affiliation(s)
- J Q Chen
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - J W Wang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
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Liang H, Wu KQ, Fan QW, Zheng W, Zhang H, Bai JW, Li JM, Chen JQ, Zhang C. [Application value of laparoscopic double stapler firings and double stapling technique combined with rectal eversion and total extra-abdominal resection in the sphincter-preserving resection of low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:283-286. [PMID: 38532592 DOI: 10.3760/cma.j.cn441530-20230806-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Objectives: To investigate the application value of laparoscopic double stapler firings and double stapling technique combined with rectal eversion and total extra-abdominal resection (LDER) in the anal preservation treatment of low rectal cancer. Methods: Inclusion criteria: (1) age was 18-70; (2) the distance of the lower tumor edge from the anal verge was 4-5 cm; (3) primary tumor with a diameter ≤3 cm; (4) preoperative staging of T1~2N1~2M0; (5) "difficult pelvis", defined as ischial tuberosity diameter<10 cm or body mass index>25 kg/m2; (6) patients with strong intention for sphincter preservation; (7) no preoperative treatment (e.g., chemotherapy, radiotherapy, molecular targeted therapy, or immunotherapy); (8) no lateral lymph node enlargement; (9) no previous anorectal surgery; (10) patients with good basic condition who could tolerate surgery. Exclusion criteria: (1) previously suffered from malignant tumors of the digestive tract or currently suffering from malignant tumors out of the digestive tract; (2) patients with preoperative anal dysfunction (Wexner score ≥ 10), or fecal incontinence. The specific surgical steps are as follows: the distal end of the rectum was dissected to the level of the interspace between internal and external sphincters of anal canal. Five centimeters proximal to the tumor, the mesorectum was ligated, and a liner stapler was used to transect the rectum. The distal rectum with the tumor were then everted and extracted through the anus. The rectum was transected 0.5-1.0 cm distal to the tumor with a linear stapler. Full thickness suture was used to reinforce the stump of the rectum, which was then brought back into the pelvic cavity. Finally, an end-to-end anastomosis between the colon and the rectum was performed. A retrospective descriptive study was performed of the clinical and pathological data of 12 patients with T1-T2 stage low rectal cancer treated with LDER at Henan Provincial People's Hospital from January 2020 to December 2022. Results: All 12 patients successfully completed LDER with sphincter preservation, without conversion to open surgery or changes in surgical approach. The median surgical time was 272 (155-320) minutes, with a median bleeding volume of 100 (50-200) mL. No protective stoma was performed, and all patients received R0 resection. The average hospital stay was 9 (7-15) days. There were no postoperative anastomotic leakage or perioperative deaths. All 12 patients received postoperative follow-up, with a median follow-up of 12 months (6-36 months) and a Wexner score of 8 (5-14) at 6 months postoperatively. There was no tumor recurrence or metastasis during the follow-up period. Conclusions: LDER is safe and effective for the treatment of low rectal cancer.
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Affiliation(s)
- H Liang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - K Q Wu
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - Q W Fan
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - W Zheng
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - H Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J W Bai
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J M Li
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - J Q Chen
- Department of Medical Imaging, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
| | - C Zhang
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou 450006, China
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Zheng D, Guan W, Chen J, Zeng C, Tan S, Chen J, Ma D. Sucrose Stearates Stabilized Oil-in-Water Emulsions: Gastrointestinal Fate, Cell Cytotoxicity and Proinflammatory Effects after Simulated Gastrointestinal Digestion. Foods 2024; 13:175. [PMID: 38201202 PMCID: PMC10778613 DOI: 10.3390/foods13010175] [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] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Different structural composition ratios of sucrose stearates with hydrophilic-hydrophobic balance (HLB) values ranging from 1 to 16 on lipolysis in emulsion were investigated using a simulated gastrointestinal tract (GIT). Results showed a direct correlation between the HLB values of sucrose stearates and the lipolysis rate of emulsions, and a lower HLB value led to diminished lipolysis in the GIT simulation model. Mechanism study indicated that poor emulsifying capacity of sucrose stearates and lipolysis of sucrose stearates with lower HLB value inhibited the digestive behavior of oil. In addition, monoester was mainly hydrolyzed in the gastric phase, whereas sucrose polyesters caused lipolysis in the intestinal phase using an in vitro digestive model and HPLC analysis, further suppressing lipid digestion. Furthermore, a decrease in cell cytotoxicity and proinflammatory effects on Caco-2 and Raw264.7 were observed post-digestion, respectively. This work offers important insights into the effects of the degree of esterification of sucrose stearate on lipid digestion behavior in oil-in-water emulsions.
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Affiliation(s)
- Danhong Zheng
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Weiyan Guan
- College of Packaging Engineering, Jinan University, Zhuhai 519070, China
| | - Jiaqing Chen
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Cuicui Zeng
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shen Tan
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jing Chen
- Institute for Advanced and Applied Chemical Synthesis, Jinan University, Guangzhou 510632, China
- College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Da Ma
- College of Packaging Engineering, Jinan University, Zhuhai 519070, China
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Zeng LT, Chen JQ, Zhao JJ, Jiang ZQ, Hu FL, Xu XF. [Study on optimization of image processing parameters of pneumoconiosis by DR]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:897-900. [PMID: 38195224 DOI: 10.3760/cma.j.cn121094-20220829-00425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Objective: To explore the effect of different post-processing parameters of digital radiography (DR) on the quality of chest X-ray for pneumoconiosis diagnosis, and to provide suggestions on parameter setting suitable for this kind of DR machine. Methods: From January 1, 2022 to June 30, 2022, the chest films of 35 workers in the department of radiology of Hangzhou occupational disease prevention and treatment hospital were randomly selected and printed after setting different image post-processing parameters. The quality of chest film was evaluated by the measurement of optical densitometer and the combination of subjective and objective by professional physicians. Results: When the density is set to 2 and the contrast/detail contrast is 4.5, the optical density of each area of DR chest film meets the requirements of chest X-ray quality, and the qualified rate of physician quality evaluation is the highest. Conclusion: Reasonable setting of image post-processing parameters can improve the quality of chest radiograph.
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Affiliation(s)
- L T Zeng
- School of Public Health Hangzhou Medical College, Hangzhou 310012, China
| | - J Q Chen
- School of Public Health Hangzhou Medical College, Hangzhou 310012, China
| | - J J Zhao
- Image Department of Hangzhou Occupational Disease Prevention and Treatment Hospital, Hangzhou 310014, China
| | - Z Q Jiang
- School of Public Health Hangzhou Medical College, Hangzhou 310012, China
| | - F L Hu
- School of Public Health Hangzhou Medical College, Hangzhou 310012, China
| | - X F Xu
- School of Public Health Hangzhou Medical College, Hangzhou 310012, China
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Liu K, He X, Zhang Z, Sun T, Chen J, Chen C, Wen W, Ding S, Liu M, Zhou C, Luo B. Highly anisotropic and elastic cellulosic scaffold guiding cell orientation and osteogenic differentiation via topological and mechanical cues. Carbohydr Polym 2023; 321:121292. [PMID: 37739527 DOI: 10.1016/j.carbpol.2023.121292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 08/01/2023] [Accepted: 08/10/2023] [Indexed: 09/24/2023]
Abstract
Inspired by the similarity of anisotropic channels in wood to the canals of bone, the elastic wood-derived (EW) scaffolds with anisotropic channels were prepared via simple delignification treatment of natural wood (NW). We hypothesize that the degree of delignification will lead to differences in mechanical properties of scaffolds, which in turn directly affect the behaviors and fate of stem cells. The delignification process did not destroy the anisotropic channel structure of the scaffolds, but endowed the scaffolds with good elasticity and rapid stress relaxation. Interestingly, the micron-scale anisotropic channels of the scaffolds can highly promote the polarization of cells along the direction of channels. We also found that the alkaline phosphatase of EW scaffold can reach to about 13.1 U/gprot, which was about double that of NW scaffold. Moreover, the longer the delignification time, the better the osteogenic activity of the EW scaffolds. We further hypothesize that the osteogenic activity of scaffolds is related to the stress relaxation properties. The immunofluorescence staining showed that when the stress relaxation time of scaffold was shortened to about 10 s, the nuclear ratio of YAP of scaffold increased to 0.22, which well supports our hypothesis.
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Affiliation(s)
- Kun Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Xiangheng He
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Zhaoyu Zhang
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Tianyi Sun
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Jiaqing Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Chunhua Chen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China
| | - Wei Wen
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Shan Ding
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Mingxian Liu
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Changren Zhou
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China
| | - Binghong Luo
- Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.
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Chen J, Huang Y, Wang Q. Semiparametric multivariate joint model for skewed-longitudinal and survival data: A Bayesian approach. Stat Med 2023; 42:4972-4989. [PMID: 37668072 DOI: 10.1002/sim.9896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/03/2023] [Accepted: 08/23/2023] [Indexed: 09/06/2023]
Abstract
Joint models and statistical inference for longitudinal and survival data have been an active area of statistical research and have mostly coupled a longitudinal biomarker-based mixed-effects model with normal distribution and an event time-based survival model. In practice, however, the following issues may standout: (i) Normality of model error in longitudinal models is a routine assumption, but it may be unrealistically violating data features of subject variations. (ii) Data collected are often featured by the mixed types of multiple longitudinal outcomes which are significantly correlated, ignoring their correlation may lead to biased estimation. Additionally, a parametric model specification may be inflexible to capture the complicated patterns of longitudinal data. (iii) Missing observations in the longitudinal data are often encountered; the missing measures are likely to be informative (nonignorable) and ignoring this phenomenon may result in inaccurate inference. Multilevel item response theory (MLIRT) models have been increasingly used to analyze the multiple longitudinal data of mixed types (ie, continuous and categorical) in clinical studies. In this article, we develop an MLIRT-based semiparametric joint model with skew-t distribution that consists of an extended MLIRT model for the mixed types of multiple longitudinal data and a Cox proportional hazards model, linked through random-effects. A Bayesian approach is employed for joint modeling. Simulation studies are conducted to assess performance of the proposed models and method. A real example from primary biliary cirrhosis clinical study is analyzed to estimate parameters in the joint model and also evaluate sensitivity of parameter estimates for various plausible nonignorable missing data mechanisms.
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Affiliation(s)
- Jiaqing Chen
- Department of Statistics, College of Science, Wuhan University of Technology, Wuhan, China
| | - Yangxin Huang
- College of Public Health, University of South Florida, Tampa, Florida, USA
| | - Qing Wang
- Yunnan Key Laboratory of Statistics Modeling and Data Analysis, Yunnan University, Kunming, China
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Chen X, Hao K, Zhao L, Zong Y, Chen J. Carbon, nitrogen, and phosphorus metabolic relationships and reaction mechanisms in SBBR processes in the plateau habitat. Environ Monit Assess 2023; 195:1464. [PMID: 37955719 DOI: 10.1007/s10661-023-11961-9] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 10/05/2023] [Indexed: 11/14/2023]
Abstract
In this study, two laboratory-scale SBBR reactors were established in a plateau habitat. Using high flux sequencing, the SBBR process was compared by natural sediment and autotrophic sludge to characterize the functional modules and functional genes of carbon, nitrogen, and phosphorus metabolism under different working conditions and to analyze the reaction mechanism. The results showed that all the functional modules of carbon metabolism and nitrogen metabolism were found in the SBBR process, except for methane metabolism, which occurred at 25 °C in tank 2, the functional modules related to methane metabolism are enhanced at all working conditions. Except for methane metabolism, all functional genes in tank 2 are inhibited by different working conditions, whereas tank 1 shows a slight enhancement. The different working conditions in nitrogen metabolism demonstrate inhibition of functional modules and functional genes in both tanks. Oxidative phosphorylation was missing five functional modules, except for M00153, where only two genes, K00424 and K22501, are missing, all of the required genes are missing in the other four functional modules. Overall the different conditions demonstrated some inhibition in both reaction tanks of the SBBR process. It is preferable to use self-cultivated sludge for membrane acclimation when operating the SBBR process in a plateau habitat. The findings of this study can be used to further research microbial carbon, nitrogen, and phosphorus metabolism mechanisms in SBBR processes in plateau habitats.
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Affiliation(s)
- Xiangyu Chen
- College of Water Conservancy and Civil Engineering, Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, People's Republic of China
| | - Kaiyue Hao
- Department of Municipal and Environmental Engineering, School of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an, 710048, People's Republic of China
| | - Lishuai Zhao
- College of Water Conservancy and Civil Engineering, Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, People's Republic of China
| | - Yongchen Zong
- College of Water Conservancy and Civil Engineering, Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, People's Republic of China.
| | - Jiaqing Chen
- College of Water Conservancy and Civil Engineering, Tibet Agriculture and Animal Husbandry University, Linzhi, 860000, People's Republic of China
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Ren Y, Li GH, Yu M, Yang D, Feng LF, Chen JQ. [Expression analysis of inflammatory factors in artificial quartz stone plate processing silicosis patients]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:837-840. [PMID: 37935550 DOI: 10.3760/cma.j.cn121094-20220517-00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Objective: To investigate the levels of tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6) and interleukin-1beta (IL-1β) in the plasma and bronchoalveolar lavage fluid of silicosis patients with artificial quartz stone plate processing. Methods: In January 2022, 10 patients with artificial quartz stone plate processing silicosis and 20 patients with common silicosis who were hospitalized and diagnosed in a hospital at Zhejiang Province from June 2019 to December 2021 were retrospectively selected as the research objects, and 30 healthy people were selected as the control group during the same period. Plasma of all subjects and bronchoalveolar lavage fluid of all patients were collected. The levels of TNF-α, IL-6 and IL-1β in plasma and bronchoalveolar lavage fluid were detected by enzyme-linked immunosorbent assay and were analyzed. Results: The levels of TNF-α, IL-6 and IL-1β in the plasma of patients with silicosis were higher than those of the control group (P<0.05), and the levels of TNF-α and IL-1β in the plasma of silicosis patients with artificial quartz stone plate processing were higher than those of common silicosis patients (P<0.05). The levels of TNF-α and IL-1β in plasma of artificial quartz stone plate processing silicosis patients were higher than those of common silicosis patients at the same silicon stage (P<0.05). The levels of IL-1β in bronchoalveolar lavage fluid of silicosis patients with artificial quartz stone plate processing was higher than that of patients with common silicosis (P<0.05) . Conclusion: The levels of TNF-α, IL-6 and IL-1β in silicosis patients with artificial quartz stone plate processing are higher than those in patients with common silicosis, which may be related to dust components they are exposed to.
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Affiliation(s)
- Y Ren
- School of Public Health, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou 310013, China
| | - G H Li
- Department of Occupational Medicine, Hangzhou Red Cross Hospital, Hangzhou 310005, China
| | - M Yu
- School of Public Health, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou 310013, China
| | - D Yang
- School of Public Health, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou 310013, China
| | - L F Feng
- School of Public Health, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou 310013, China
| | - J Q Chen
- School of Public Health, Hangzhou Medical College (Zhejiang Academy of Medical Sciences), Hangzhou 310013, China
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Chen S, Wang XM, Wu F, Huang C, Gao TT, Zhang ZW, Chen JQ, Zheng B, Wang Y, Xu Y, Zhao L, Yang Y. Primary Small Cell Carcinoma of the Esophagus in a Large Multicenter Cohort: Prognostic Factors and Treatment Strategies in the Modern Era. Int J Radiat Oncol Biol Phys 2023; 117:e286-e287. [PMID: 37785063 DOI: 10.1016/j.ijrobp.2023.06.1275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Primary small cell carcinoma of esophageal (PSCCE) is a rare malignancy with aggressive behavior associated with a perceived poor prognosis. Due to its rarity, the clinical characteristics and the optimal clinical management have not yet been defined, therefore, we designed a multicenter retrospective study to analyze the prognostic factors and the impact of treatment on the prognosis of PSCCE patients. MATERIALS/METHODS We retrospectively evaluated 704 consecutive patients with PSCCE from five participating centers between April 2008 and July 2021. The PSCCE was diagnosed based on the World Health Organization classification. Treatment strategies included surgery, radiotherapy (RT), or chemotherapy only, and combination of 2-3 treatment modalities (surgery, RT and chemotherapy). The estimated hazard rates provide the trajectory of progression and death overtime. Univariate survival analysis was conducted by using Kaplan-Meier plots, and the log-rank test was used to compare survival differences. Cox regression analysis was used to determine the independent prognostic factors in multivariate analysis. RESULTS Overall, 69.0% (486/704) of the patients were male, with a median age of 63 years (range 38-96). Most of the patients were regional lymph node positive (N+, 64.0%), and nearly half with advanced stage (M+, 47.2%). With a median follow-up time of 16 months, 472 patients (67.0%) exhibited disease progression and 429 patients (60.9%) died. Following initial treatment, 85.1% (402/472) of progression/death and 80.1% (344/429) of mortalities occurred within 24 months. Consistently, the maximum annual death and progression/death hazards are highest in the 15.6 months and 9.6 months. The overall survival (OS) rates at 1, 3 and 5 years for all patients were 65.1%, 26.5% and 18.3%, respectively. Univariate survival analysis showed that ECOG score, alcohol abuse, TNM stage, N stage, and M stage were correlated with OS (P <0.05). Multivariate analysis showed that the N stage (HR: 1.378, P = 0.018) and M stage (HR: 1.945, P <0.001) carried independent prognostic factors for OS. In the term of treatment, the OS rates for M- patients treated with combined modality therapy (CMT, surgery±radiotherapy/chemotherapy) were better than those treated with surgery alone or radiotherapy/chemotherapy (3-year OS: 36.7% VS 25.6% VS 32.2%; P = 0.045). The OS rates for M+ patients treated with chemotherapy alone, radiotherapy alone, or radiotherapy combined with chemotherapy were no significant differences (3-year OS: 12.2% VS 19.4% VS 11.1%; P = 0.400). CONCLUSION PSCCE is characterized by a high degree of malignancy with high risks of lymphatic and distant metastasis, N and M stages are the most important prognostic factor. In terms of treatment, comprehensive treatment is most likely to benefit patients without distant metastasis.
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Affiliation(s)
- S Chen
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - X M Wang
- Department of Radiation Oncology, Anyang Tumor Hospital, Anyang, China
| | - F Wu
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Cancer Hospital, Chongqing, China
| | - C Huang
- Department of Radiation Oncology, Fujian Medical University Union Hospital, Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
| | - T T Gao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Z W Zhang
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - J Q Chen
- Department of Radiation Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
| | - B Zheng
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Y Wang
- Department of Radiation Oncology, Chongqing University Cancer Hospital & Chongqing Cancer Institute & Cancer Hospital, Chongqing, China
| | - Y Xu
- Department of Radiation Oncology, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou, China
| | - L Zhao
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Guangzhou, China
| | - Y Yang
- Fujian Key Laboratory of Intelligent Imaging and Precision Radiotherapy for Tumors (Fujian Medical University), Fuzhou, China
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Chen J, He X, Sun T, Liu K, Chen C, Wen W, Ding S, Liu M, Zhou C, Luo B. Highly Elastic and Anisotropic Wood-Derived Composite Scaffold with Antibacterial and Angiogenic Activities for Bone Repair. Adv Healthc Mater 2023; 12:e2300122. [PMID: 37099026 DOI: 10.1002/adhm.202300122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/04/2023] [Indexed: 04/27/2023]
Abstract
Scaffold-based tissue engineering is a promising strategy to address the rapidly growing demand for bone implants, but developing scaffolds with bone extracellular matrix-like structures, suitable mechanical properties, and multiple biological activities remains a huge challenge. Here, it is aimed to develop a wood-derived composite scaffold with an anisotropic porous structure, high elasticity, and good antibacterial, osteogenic, and angiogenic activities. First, natural wood is treated with an alkaline solution to obtain a wood-derived scaffold with an oriented cellulose skeleton and high elasticity, which can not only simulate collagen fiber skeleton in bone tissue but also greatly improve the convenience of clinical implantation. Subsequently, chitosan quaternary ammonium salt (CQS) and dimethyloxalylglycine (DMOG) are further modified on the wood-derived elastic scaffold through a polydopamine layer. Among them, CQS endows the scaffold with good antibacterial activity, while DMOG significantly improves the scaffold's osteogenic and angiogenic activities. Interestingly, the mechanical characteristics of the scaffolds and the modified DMOG can synergistically enhance the expression of yes-associated protein/transcriptional co-activator with PDZ binding motif signaling pathway, thereby effectively promoting osteogenic differentiation. Therefore, this wood-derived composite scaffold is expected to have potential application in the treatment of bone defects.
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Affiliation(s)
- Jiaqing Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
| | - Xiangheng He
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
| | - Tianyi Sun
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
| | - Kun Liu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
| | - Chunhua Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
| | - Wei Wen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou, 510632, P. R. China
| | - Shan Ding
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou, 510632, P. R. China
| | - Mingxian Liu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou, 510632, P. R. China
| | - Changren Zhou
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou, 510632, P. R. China
| | - Binghong Luo
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou, 510632, P. R. China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou, 510632, P. R. China
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11
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Chen J, Gao H, Han L, Yu R, Mei G. Susceptibility Analysis of Glacier Debris Flow Based on Remote Sensing Imagery and Deep Learning: A Case Study along the G318 Linzhi Section. Sensors (Basel) 2023; 23:6608. [PMID: 37514903 PMCID: PMC10383337 DOI: 10.3390/s23146608] [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] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/18/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Abstract
Glacial debris flow is a common natural disaster, and its frequency has been increasing in recent years due to the continuous retreat of glaciers caused by global warming. To reduce the damage caused by glacial debris flows to human and physical properties, glacier susceptibility assessment analysis is needed. Most research efforts consider the effect of existing glacier area and ignore the effect of glacier ablation volume change. In this paper, we consider the impact of glacier ablation volume change to investigate the susceptibility of glacial debris flow. The susceptibility to mudslide was evaluated by taking the glacial mudslide-prone ditch of G318 Linzhi section of Sichuan-Tibet Highway as the research object. First, by using a simple band ratio method with manual correction, we produced a glacial mudslide remote sensing image dataset, and second, we proposed a deep-learning-based approach using a weight-optimized glacial mudslide semantic segmentation model for accurately and automatically mapping the boundaries of complex glacial mudslide-covered remote sensing images. Then, we calculated the ablation volume by the change in glacier elevation and ablation area from 2015 to 2020. Finally, glacial debris flow susceptibility was evaluated based on the entropy weight method and Topsis method with glacial melt volume in different watersheds as the main factor. The research results of this paper show that most of the evaluation indices of the model are above 90%, indicating that the model is reasonable for glacier boundary extraction, and remote sensing images and deep learning techniques can effectively assess the glacial debris flow susceptibility and provide support for future glacial debris flow disaster prevention.
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Affiliation(s)
- Jiaqing Chen
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
| | - Hong Gao
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
| | - Le Han
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
| | - Ruilin Yu
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
| | - Gang Mei
- School of Engineering and Technology, China University of Geosciences (Beijing), Beijing 100083, China
- Engineering and Technology Innovation Center for Risk Prevention and Control of Major Project Geosafety, Ministry of Natural Resources, Beijing 100083, China
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12
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Mu GC, Luo YJ, Chen JQ. Construction of an autophagy-related eleven long noncoding RNA signature to predict the outcomes, immune cell infiltration, and immunotherapy response in patients with gastric cancer. J Physiol Pharmacol 2023; 74. [PMID: 37661182 DOI: 10.26402/jpp.2023.3.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/30/2023] [Indexed: 09/05/2023]
Abstract
Long noncoding RNAs (LncRNAs) may be involved in the occurrence, development, and drug resistance of gastric cancer (GC) by regulating autophagy. This study aims to establish an autophagy-related LncRNA (ARL) signature (ARLSig) and explore its immunogenomic implications in patients with GC. The RNA sequencing and clinical data of patients with GC from The Cancer Genome Atlas database, and autophagy genes from the Human Autophagy Database were extracted. The co-expression and Cox regression analyses were performed to establish a prognostic ARLSig. Further, the differences in clinicopathology, immune microenvironment, immune function, and response to immunotherapy between the risk groups were explored by several algorithms. A prognostic risk model consisting of 11 ARLs was constructed. The clinical correlation analysis between the ARLSig and clinicopathological factors indicated that the ARLSig was correlated with the comprehensive, T, and N stages (all P<0.05). Further, a nomogram including the ARLSig and clinical factors suggested it had a powerful predictive value for survival, with a higher prediction efficiency for 1-, 3-, and 5-year survival than other clinicopathological factors. Finally, the immune-related analysis between the two risk groups showed that the high-risk group had significantly higher infiltration proportions of natural killer cells resting, monocytes, M2 macrophages, and dendritic cells resting, as well as higher expression of 25 immune checkpoint genes. In addition, the immunotherapy response prediction by the tracking of indels by decomposition algorithm showed the low-risk group was more sensitive to immune checkpoint inhibitor therapy. The ARLSig consisting of 11 ARLs in GC showed highly efficient predictive value for survival of patients with GC and might provide novel targets for their individualized immunotherapy.
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Affiliation(s)
- G C Mu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
- Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, Guangxi Medical University, Nanning, China
| | - Y J Luo
- Graduate School of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - J Q Chen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China.
- Guangxi Key Laboratory of Enhanced Recovery after Surgery for Gastrointestinal Cancer, Guangxi Medical University, Nanning, China
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13
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Yuan Z, Chen J, Qiu H, Huang Y. Quantile-Adaptive Sufficient Variable Screening by Controlling False Discovery. Entropy (Basel) 2023; 25:524. [PMID: 36981413 PMCID: PMC10048075 DOI: 10.3390/e25030524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Sufficient variable screening rapidly reduces dimensionality with high probability in ultra-high dimensional modeling. To rapidly screen out the null predictors, a quantile-adaptive sufficient variable screening framework is developed by controlling the false discovery. Without any specification of an actual model, we first introduce a compound testing procedure based on the conditionally imputing marginal rank correlation at different quantile levels of response to select active predictors in high dimensionality. The testing statistic can capture sufficient dependence through two paths: one is to control false discovery adaptively and the other is to control the false discovery rate by giving a prespecified threshold. It is computationally efficient and easy to implement. We establish the theoretical properties under mild conditions. Numerical studies including simulation studies and real data analysis contain supporting evidence that the proposal performs reasonably well in practical settings.
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Affiliation(s)
- Zihao Yuan
- Department of Statistics, Wuhan University of Technology, Wuhan 430070, China
| | - Jiaqing Chen
- Department of Statistics, Wuhan University of Technology, Wuhan 430070, China
| | - Han Qiu
- Department of Statistics, Wuhan University of Technology, Wuhan 430070, China
| | - Yangxin Huang
- Department of Epidemiology and Biostatistics, University of South Florida, Tampa, FL 33612, USA
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14
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Shi Y, Chen J, Zhang M, Ji Y, Shang C, Dong J, Wang C, Huang S, Zhang B. Research on The Performance of A Novel Compact Electrostatic Separator: From Laboratory Experiment to Oilfield Test. SEP SCI TECHNOL 2023. [DOI: 10.1080/01496395.2023.2179494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Yi Shi
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
| | - Jiaqing Chen
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
| | - Ming Zhang
- Engineering Research & Design Department, CNOOC Research Institute Company Limited, Beijing, P. R. China
| | - Yipeng Ji
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
| | - Chao Shang
- Engineering Research & Design Department, CNOOC Research Institute Company Limited, Beijing, P. R. China
| | - Jianyu Dong
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
| | - Chunsheng Wang
- Engineering Research & Design Department, CNOOC Research Institute Company Limited, Beijing, P. R. China
| | - Songtao Huang
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
| | - Baosheng Zhang
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deepwater Oil & Gas Development, Beijing, P. R. China
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15
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Wang QW, Chen JQ, Zhong WQ, Wu Y, Zhao Y, Deng G. [Expert consensus on diagnosis and treatment of latent tuberculosis infection in patients with rheumatic diseases]. Zhonghua Nei Ke Za Zhi 2022; 61:1300-1309. [PMID: 36456509 DOI: 10.3760/cma.j.cn112138-20220629-00485] [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: 06/17/2023]
Abstract
Rheumatic diseases, a typical kind of autoimmune disease, are often treated with glucocorticoids, immunosuppressants, biological agents, and small-molecule targeted drugs, which often leads to immune dysfunction in patients and increases the risk of activation of latent tuberculosis infection. To regulate the screening, diagnosis, and prophylactic treatment of latent tuberculosis infection in patients with rheumatic diseases, reduce the risk of developing active tuberculosis and improve the prognosis, Peking University Shenzhen Hospital, Shenzhen Third People's Hospital and Peking Union Medical College Hospital jointly organized domestic experts in the field of rheumatology and tuberculosis to establish the expert consensus on the diagnosis and treatment of latent tuberculosis infection in patients with rheumatic diseases. This consensus focuses on epidemiology, the importance of screening, screening methods, and prophylactic anti-tuberculosis treatment strategies for latent tuberculosis infection combined with rheumatic diseases.
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Affiliation(s)
- Q W Wang
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Key Laboratory of Inflammatory and Immunologic Diseases, Shenzhen 518036, China
| | - J Q Chen
- The Second Department of Pulmonary Diseases, Shenzhen Third People's Hospital, National Clinical Medical Research Center for Infectious Diseases, Shenzhen 518000, China
| | - W Q Zhong
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Key Laboratory of Inflammatory and Immunologic Diseases, Shenzhen 518036, China
| | - Y Wu
- Department of Rheumatism and Immunology, Peking University Shenzhen Hospital, Shenzhen Key Laboratory of Inflammatory and Immunologic Diseases, Shenzhen 518036, China
| | - Yan Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology, State Key Laboratory of Complex Sever and Rare Diseases, Key Laboratory of Rheumatology and Immunology, Ministry of Education, Beijing 100730, China
| | - Guofang Deng
- The Second Department of Pulmonary Diseases, Shenzhen Third People's Hospital, National Clinical Medical Research Center for Infectious Diseases, Shenzhen 518000, China
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16
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Lu G, Tan HWS, Schmauck-Medina T, Wang L, Chen J, Cho YL, Chen K, Zhang JZ, He W, Wu Y, Xia D, Zhou J, Fang EF, Fang L, Liu W, Shen HM. WIPI2 positively regulates mitophagy by promoting mitochondrial recruitment of VCP. Autophagy 2022; 18:2865-2879. [PMID: 35389758 PMCID: PMC9673930 DOI: 10.1080/15548627.2022.2052461] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The mammalian Atg18 ortholog WIPI2 is a key regulator of LC3 lipidation to promote autophagosome biogenesis during nonselective macroautophagy, while its functions in selective autophagy such as mitophagy remain largely unexplored. In this study, we explored the role of WIPI2 in PINK1-PRKN/parkin-mediated mitophagy. First, we found that WIPI2 is recruited to damaged mitochondria upon mitophagy induction. Second, loss of WIPI2 impedes mitochondrial damaging agents-induced mitophagy. Third, at molecular level, WIPI2 binds to and promotes AAA-ATPase VCP/p97 (valosin containing protein) to damaged mitochondria; and WIPI2 depletion blunts the recruitment of VCP to damaged mitochondria, leading to reduction in degradation of outer mitochondrial membrane (OMM) proteins and mitophagy. Finally, WIPI2 is implicated in cell fate decision as cells deficient in WIPI2 are largely resistant to cell death induced by mitochondrial damage. In summary, our study reveals a critical regulatory role of WIPI2 in mitochondrial recruitment of VCP to promote OMM protein degradation and eventual mitophagy.Abbreviations: ATG, autophagy related; CALCOCO2/NDP52, calcium binding and coiled-coil domain 2; CCCP, carbonyl cyanide chlorophenylhydrazone; CYCS, cytochrome c, somatic; HSPD1/HSP60, heat shock protein family D (Hsp60) member 1; IMM, inner mitochondrial membrane; MAP1LC3/LC3, microtubule associated protein 1 light chain 3; NPLOC4, NPL4 homolog, ubiquitin recognition factor; OMM, outer mitochondrial membrane; OPTN, optineurin; PtdIns3P, phosphatidylinositol-3-phosphate; PINK1, PTEN induced kinase 1; PRKN/Parkin, parkin RBR E3 ubiquitin protein ligase; UBXN6/UBXD1, UBX domain protein 6; UFD1, ubiquitin recognition factor in ER associated degradation 1; VCP/p97, valosin containing protein; WIPI2, WD repeat domain, phosphoinositide interacting 2.
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Affiliation(s)
- Guang Lu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China,Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Hayden Weng Siong Tan
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tomas Schmauck-Medina
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog, Norway
| | - Liming Wang
- School of Biomedical Sciences, Hunan University, Changsha, China
| | - Jiaqing Chen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yik-Lam Cho
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kelie Chen
- School of Public Health, Zhejiang University, Hangzhou, China
| | - Jing-Zi Zhang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School & Chemistry and Biomedicine Innovation Center of Nanjing University, Nanjing, Jiangsu, China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Army Medical University, Chongqing, China
| | - Yihua Wu
- School of Public Health, Zhejiang University, Hangzhou, China
| | - Dajing Xia
- School of Public Health, Zhejiang University, Hangzhou, China
| | - Jing Zhou
- Department of Physiology, School of Preclinical Medicine, Guangxi Medical University, Nanning, China
| | - Evandro F. Fang
- Department of Clinical Molecular Biology, University of Oslo and Akershus University Hospital, Lørenskog, Norway
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine, Medical School & Chemistry and Biomedicine Innovation Center of Nanjing University, Nanjing, Jiangsu, China
| | - Wei Liu
- Department of Biochemistry, School of Medicine, Zhejiang University, Zhejiang, China
| | - Han-Ming Shen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Faculty of Health Sciences, Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Macau, China,CONTACT Han-Ming Shen Faculty of Health Sciences, Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Macau, China
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17
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Chen J, Chen J, Zhu Z, Sun T, Liu M, Lu L, Zhou C, Luo B. Drug-Loaded and Anisotropic Wood-Derived Hydrogel Periosteum with Super Antibacterial, Anti-Inflammatory, and Osteogenic Activities. ACS Appl Mater Interfaces 2022; 14:50485-50498. [PMID: 36331130 DOI: 10.1021/acsami.2c12147] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Current artificial periostea mainly focus on osteogenic activity but overlook structural and mechanical anisotropy, as well as the importance of antibacterial and anti-inflammatory properties. Here, inspired by the anisotropic structure of wood, the delignified wood (named white wood, WW) with a porous and highly oriented cellulose fiber skeleton was obtained, which was further filled with polyvinyl alcohol (PVA) hydrogel loaded with curcumin (Cur) and phytic acid (PA). The prepared wood-derived hydrogel composite membranes can not only exhibit an obvious anisotropic structure and good mechanical properties but also sustainably release loaded drugs to obtain long-term biological activities. Creatively, PA can effectively improve the bioavailability of Cur; more importantly, Cur and PA play an obvious synergistic effect in antibacterial, anti-inflammatory, and osteogenic activities. Compared with the wood-derived hydrogel composite membranes without drug loading, as well as loaded with Cur or PA only, these loaded with Cur and PA are significantly more conducive to inhibiting the growth of bacteria and inflammatory response and facilitating the adhesion, proliferation, and osteogenic differentiation of bone marrow mesenchymal stem cells. This kind of anisotropic wood-derived hydrogel composite membrane with fantastic antibacterial, anti-inflammatory, and osteogenic activities is expected to be ideal artificial periostea.
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Affiliation(s)
- Jiaqing Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Jingsheng Chen
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Zelin Zhu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Tianyi Sun
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
| | - Mingxian Liu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Lu Lu
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Changren Zhou
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
| | - Binghong Luo
- Biomaterial research laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou510632, PR China
- Engineering Research center of Artificial Organs and Materials, Ministry of Education, Guangzhou510632, PR China
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18
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Chen J, Zhu Z, Chen J, Luo Y, Li L, Liu K, Ding S, Li H, Liu M, Zhou C, Luo B. Photocurable liquid crystal hydrogels with different chargeability and tunable viscoelasticity based on chitin whiskers. Carbohydr Polym 2022; 301:120299. [DOI: 10.1016/j.carbpol.2022.120299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/14/2022] [Accepted: 10/30/2022] [Indexed: 11/08/2022]
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19
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Chen JQ, Zhu SH. [Research advances on the construction of artificial dermal scaffolds based on biomaterials]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:968-972. [PMID: 36299210 DOI: 10.3760/cma.j.cn501225-20220606-00221] [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: 06/16/2023]
Abstract
In the field of wound repair, scarless healing and complete reconstruction of skin function are major challenges in clinical and basic research. At present, a variety of artificial dermal scaffolds have been used in the clinical repair of wounds to overcome the problems such as skin structural disorders caused by tissue defects. The biomaterials used to make artificial dermal scaffolds in skin and tissue engineering research mainly include three categories: natural biomaterials, biosynthetic materials, and organic polymer materials. This review summarizes the biocompatibility, bioactivity, and degradability of biomaterials and their effects on wound healing, and provides an overview of artificial dermal scaffold construction strategies based on biomaterials, wound healing cells, and associated cytokines.
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Affiliation(s)
- J Q Chen
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Burn Institute of PLA, Shanghai 200433, China
| | - S H Zhu
- Department of Burn Surgery, the First Affiliated Hospital of Naval Medical University, Burn Institute of PLA, Shanghai 200433, China
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20
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Huang Y, Tang NS, Chen J. Multivariate piecewise joint models with random change-points for skewed-longitudinal and survival data. J Appl Stat 2022; 49:3063-3089. [DOI: 10.1080/02664763.2021.1935797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Yangxin Huang
- College of Public Health, University of South Florida, Tampa, FL, USA
- Department of Statistics, College of Science, Yunnan University, Kunming, People's Republic of China
| | - Nian-Sheng Tang
- Department of Statistics, College of Science, Yunnan University, Kunming, People's Republic of China
| | - Jiaqing Chen
- Department of Statistics, College of Science, Wuhan University of Technology, Wuhan, People's Republic of China
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21
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Liu Y, Yu W, Zhou M, Li F, Liao F, Dong Z, Wang H, Chen J, Gao L. Translation and validation of the Chinese ABCD risk questionnaire to evaluate adults' awareness and knowledge of the risks of cardiovascular diseases. BMC Public Health 2022; 22:1671. [PMID: 36057600 PMCID: PMC9441105 DOI: 10.1186/s12889-022-14101-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/29/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Assessment of health beliefs and risk perception is a critical means to prevent coronary heart disease, but there are few such studies on assessment in the Chinese population. Given the demonstrated value and widespread use of the Attitudes and Beliefs about Cardiovascular Disease Risk Questionnaire (ABCD), this study was designed to translate it into Chinese, and to evaluate its reliability and validity in a Chinese population. METHODS The Chinese version of the ABCD was created using the Beaton translation model, which included forward and backward translation. The reliability and construct validity of the Chinese ABCD were examined in a sample of 353 adults who participated in the public welfare projects of the Chinese National Center for Cardiovascular Diseases in Guilin city, Guangxi. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were performed to examine the factor structure of the Chinse ABCD. The internal consistency of the questionnaire was assessed using Cronbach's α and corrected item-total correlations. RESULTS We deleted item 7 in the knowledge dimension of the Chinese ABCD and added two items about smoking and sleep knowledge, while retaining 25 of the original items, so that it finally included 27 items. The correlations were .20-.90; the correlations between each item and the total score of the ABCD were .34-.86; and the item-level Content Validity Index (I-CVI) was .86-1.00. The results of the EFA showed that all items were close to .40, and the cumulative variance contribution rate was 63.88%. The model fit was acceptable (χ2 = 698.79, df = 243, χ2/df = 2.87, P < 0.001, SRMR = 0.06, RMSEA = 0.05, CFI = 0.96, and TLI = 0.94) according to the CFA. The Cronbach' s α of the entire questionnaire was .86, and the α of each of dimension was .65, .90, .88, and .78. The split-half reliability of the entire the ABCD was .67, and the test-retest reliability was .97 (P < 0.05). The questionnaire had good reliability and validity and was associated with sociodemographic and health-related characteristics (smoking and Body Mass Index). CONCLUSION The Chinese version of the ABCD has good reliability and validity, and provides a reliable assessment tool for measuring public health beliefs about the risk of cardiovascular disease, promoting the primary prevention of coronary heart disease.
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Affiliation(s)
- Yan Liu
- Nursing Department, Affiliated Hospital of Guilin Medical University, Guangxi, China. .,School of Nursing, Sun Yat-sen University, Guangzhou, China.
| | - Wei Yu
- Cardiovascular Medicine Ward, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Mei Zhou
- Cardiovascular Medicine Ward, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Fang Li
- Nursing Department, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Farong Liao
- Cardiovascular Medicine Ward, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Zhengyu Dong
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Hairong Wang
- Cardiovascular Medicine Ward, Affiliated Hospital of Guilin Medical University, Guangxi, China
| | - Jiaqing Chen
- Rhode Island Hospital, affiliated with the Warren Alpert Medical School of Brown University, Providence RI, USA
| | - Lingling Gao
- School of Nursing, Sun Yat-sen University, Guangzhou, China.
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22
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Liu Y, Lin Q, Chen J, Shao Y, Wang Y, Wang J. PDMS-OH and nano-SiO2 Modified KH570-TEOS silica-sol coating and protective effect on concrete. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Wu L, Zhan H, Bao ZN, Chen JQ, Cai XL. [Analysis of treatment costs for pneumoconiosis patients in Hunan Province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:515-518. [PMID: 35915942 DOI: 10.3760/cma.j.cn121094-20210702-00320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the level and influencing factors of treatment costs for patients with pneumoconiosis, and to provide a basis for reducing the economic burden of patients with pneumoconiosis and optimizing the rational allocation of medical resources. Methods: In August 2020, the multi-stage stratified sampling method was used to obtain the treatment cost information of pneumoconiosis patients from January to December 2018 in 1123 sample medical institutions. The average cost per time of 2178 outpatients and 7425 inpatients was described, and the differences in the distribution of hospitalization costs for patients with pneumoconiosis were compared by one-way analysis of variance, and a multiple linear regression model was constructed to analyze the influencing factors of hospitalization costs for patients with pneumoconiosis. Results: The average cost of outpatients with pneumoconiosis was 465.88 yuan, and the average cost of inpatients was 12280.63 yuan. There were statistically significant differences in hospitalization expenses among different age, institution level, institution type, length of hospital stay and type of insured (F=10.49, 402.92, 416.35, 2390.48, 1298.14, P<0.001) . Age, length of hospital stay, reimbursement ratio, and institution level were influencing factors of the total hospitalization expenses of patients with pneumoconiosis (t=5.27, 62.20, 22.35, 21.20, P<0.001) . Conclusion: Patients with pneumoconiosis have a heavy burden of treatment costs. Age, length of hospital stay, institution level and reimbursement ratio are the main influencing factors of hospitalization costs. It is recommended to strengthen the prevention and treatment of key populations, standardize the use of medical insurance, and promote the rational allocation of medical resource to reduce the cost burden of pneumoconiosis patients.
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Affiliation(s)
- L Wu
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - H Zhan
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - Z N Bao
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - J Q Chen
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
| | - X L Cai
- School of Humanities and Management, Hunan University of Chinese Medicine, Changsha 410208, China
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24
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Chen JQ. Fahr's syndrome, intracranial calcification and secondary hypoparathyroidism. QJM 2022; 115:481-482. [PMID: 35298651 DOI: 10.1093/qjmed/hcac078] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Q Chen
- From the Department of Neurology, HwaMei Hospital, University of Chinese Academy of Sciences, 41 Xibei Street, Ningbo, Zhejiang 315000 China
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25
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Xu T, An D, Jia Y, Chen J, Zhong H, Ji Y, Wang Y, Wang Z, Wang Q, Pan Z, Yue Y. 3D joints estimation of human body using part segmentation. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.04.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Chen J, Zou L, Lu G, Grinchuk O, Fang L, Ong DST, Taneja R, Ong CN, Shen HM. PFKP alleviates glucose starvation-induced metabolic stress in lung cancer cells via AMPK-ACC2 dependent fatty acid oxidation. Cell Discov 2022; 8:52. [PMID: 35641476 PMCID: PMC9156709 DOI: 10.1038/s41421-022-00406-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 03/10/2022] [Indexed: 11/08/2022] Open
Abstract
Cancer cells adopt metabolic reprogramming to promote cell survival under metabolic stress. A key regulator of cell metabolism is AMP-activated protein kinase (AMPK) which promotes catabolism while suppresses anabolism. However, the underlying mechanism of AMPK in handling metabolic stress in cancer remains to be fully understood. In this study, by performing a proteomics screening of AMPK-interacting proteins in non-small-cell lung cancer (NSCLC) cells, we discovered the platelet isoform of phosphofructokinase 1 (PFKP), a rate-limiting enzyme in glycolysis. Moreover, PFKP was found to be highly expressed in NSCLC patients associated with poor survival. We demonstrated that the interaction of PFKP and AMPK was greatly enhanced upon glucose starvation, a process regulated by PFKP-associated metabolites. Notably, the PFKP-AMPK interaction promoted mitochondrial recruitment of AMPK which subsequently phosphorylated acetyl-CoA carboxylase 2 (ACC2) to enhance long-chain fatty acid oxidation, a process helping maintenance of the energy and redox homeostasis and eventually promoting cancer cell survival under glucose starvation. Collectively, we revealed a critical non-glycolysis-related function of PFKP in regulating long-chain fatty acid oxidation via AMPK to alleviate glucose starvation-induced metabolic stress in NSCLC cells.
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Affiliation(s)
- Jiaqing Chen
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Li Zou
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Guang Lu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Oleg Grinchuk
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Derrick Sek Tong Ong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Reshma Taneja
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Choon-Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Han-Ming Shen
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore.
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Faculty of Health Sciences, Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China.
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27
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Wang X, Zhang Z, Wang P, Chen J, Wu J. Characteristic density peak clustering algorithm for taxi hot spots detection. IFS 2022. [DOI: 10.3233/jifs-220327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Density peak clustering can be used in identifying high-density regions for urban hot spots detection. The distance matrix of each two position points needs to be calculated in the existing density peak clustering methods which causes inefficient clustering when processing large-scale data, and the traditional two-dimensional decision map cannot identify the coincident points. Thus, characteristic density peak clustering algorithm is proposed to avoid the influence of noise. At first, the location feature points and support index are defined to simulate the original locations. The number of feature points is adjusted by parameters to make density peak clustering no longer sensitive to the amount of data to simplify the complexity to be solved. And then, the local density and the distance between the clustering centers of the feature points are proposed to construct three-dimensional decision map. Finally, the clustering center, basic clustering points, and noise data points are determined using the three-dimensional decision map combined with the support index of the feature points. Experiments are performed on real data set and the prototype system to verify that the method can significantly improve time efficiency while clustering accuracy is maintained.
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Affiliation(s)
- Xiaohan Wang
- School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China
- Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China
| | - Zepei Zhang
- Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China
| | - Pei Wang
- School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China
- Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China
| | - Jiaqing Chen
- School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China
- Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China
| | - Junze Wu
- School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China
- Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China
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28
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Huang Y, Chen J, Xu L, Tang NS. Bayesian Joint Modeling of Multivariate Longitudinal and Survival Data With an Application to Diabetes Study. Front Big Data 2022; 5:812725. [PMID: 35574573 PMCID: PMC9094046 DOI: 10.3389/fdata.2022.812725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/24/2022] [Indexed: 11/15/2022] Open
Abstract
Joint models of longitudinal and time-to-event data have received a lot of attention in epidemiological and clinical research under a linear mixed-effects model with the normal assumption for a single longitudinal outcome and Cox proportional hazards model. However, those model-based analyses may not provide robust inference when longitudinal measurements exhibit skewness and/or heavy tails. In addition, the data collected are often featured by multivariate longitudinal outcomes which are significantly correlated, and ignoring their correlation may lead to biased estimation. Under the umbrella of Bayesian inference, this article introduces multivariate joint (MVJ) models with a skewed distribution for multiple longitudinal exposures in an attempt to cope with correlated multiple longitudinal outcomes, adjust departures from normality, and tailor linkage in specifying a time-to-event process. We develop a Bayesian joint modeling approach to MVJ models that couples a multivariate linear mixed-effects (MLME) model with the skew-normal (SN) distribution and a Cox proportional hazards model. Our proposed models and method are evaluated by simulation studies and are applied to a real example from a diabetes study.
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Affiliation(s)
- Yangxin Huang
- College of Public Health, University of South Florida, Tampa, FL, United States
- *Correspondence: Yangxin Huang
| | - Jiaqing Chen
- Department of Statistics, College of Science, Wuhan University of Technology, Wuhan, China
| | - Lan Xu
- College of Public Health, University of South Florida, Tampa, FL, United States
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29
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Yang J, Zhang X, Chen J, Heng BC, Jiang Y, Hu X, Ge Z. Macrophages promote cartilage regeneration in a time- and phenotype-dependent manner. J Cell Physiol 2022; 237:2258-2270. [PMID: 35147979 DOI: 10.1002/jcp.30694] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/29/2021] [Accepted: 01/20/2022] [Indexed: 12/12/2022]
Abstract
Immune regulation of osteochondral defect regeneration has not yet been rigorously characterized. Although macrophages have been demonstrated to regulate the regeneration process in various tissues, their direct contribution to cartilage regeneration remains to be investigated, particularly the functions of polarized macrophage subpopulations. In this study, we investigated the origins and functions of macrophages during healing of osteochondral injury in the murine model. Upon osteochondral injury, joint macrophages are predominantly derived from circulating monocytes. Macrophages are essential for spontaneous cartilage regeneration in juvenile C57BL/6 mice, by modulating proliferation and apoptosis around the injury site. Exogeneous macrophages also exhibit therapeutic potential in promoting cartilage regeneration in adult mice with poor regenerative capacity, possibly via regulation of PDGFRα+ stem cells, with this process being influenced by initial phenotype and administration timing. Only M2c macrophages are able to promote regeneration of both cartilage tissues and subchondral bone. Overall, we reveal the direct link between macrophages and osteochondral regeneration and highlight the key roles of relevant immunological niches in successful regeneration.
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Affiliation(s)
- Jiabei Yang
- Department of Biomedical Engineering, Peking University, Beijing, China
| | - Xuewei Zhang
- Department of Biomedical Engineering, Peking University, Beijing, China
| | - Jiaqing Chen
- Department of Biomedical Engineering, Peking University, Beijing, China
| | | | - Yangzi Jiang
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaoyu Hu
- Institute for Immunology and School of Medicine, Tsinghua University, Beijing, China
- Tsinghua-Peking Centre for Life Sciences, Beijing, China
- Beijing Key Laboratory for Immunological Research on Chronic Diseases, Beijing, China
| | - Zigang Ge
- Department of Biomedical Engineering, Peking University, Beijing, China
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
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30
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Chen JQ, Dong YM. [Research progress in vital pulp therapy in mature permanent teeth with carious pulp exposure]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:95-100. [PMID: 35012258 DOI: 10.3760/cma.j.cn112144-20210714-00328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Vital pulp therapy(VPT)is an important pathway to preserve and maintain pulp tissue in a healthy state. VPT has been improved recently as the new progress achieved in pathobiology, bioactive materials and clinical research. The present review summarizes the clinical outcomes and prognostic factors of VPT, including direct pulp capping, partial pulpotomy and full pulpotomy in mature permanent teeth with carious pulp exposure, and briefly introduces the new progress in this field.
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Affiliation(s)
- J Q Chen
- Department of Cariology and Endodontoloty, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y M Dong
- Department of Cariology and Endodontoloty, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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31
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Xu T, Huang J, Pei Z, Chen J, Li J, Bezerianos A, Thakor N, Wang H. The Effect of Multiple Factors on Working Memory Capacities: Aging, Task difficulty, and Training. IEEE Trans Biomed Eng 2022; 70:1967-1978. [PMID: 37015624 DOI: 10.1109/tbme.2022.3232849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
GOAL Working memory (WM) is a memory system with a limited capacity that can process and store information temporarily in the performing of cognitive tasks. Despite WM is known to be influenced by age, the difficulty of tasks and trained or not from behavior studies, little is known about their relationships from the aspect of the brain functional network. Our goal was to explore the factor of aging-related changes of WM with brain functional networks. METHODS In this study, 25 healthy elderly and 23 healthy young volunteers were recruited for electroencephalogram (EEG) recording during the visual WM task with four difficulty levels (1-4 backs). In each back, we repeat the experiment with four sessions, and we add training sections between session one and session two as well as between session two and session three. However, we remove any training section between session three and session four in order to evaluate the impact of forgetting on WM in different age groups. After the experiment, we utilized graph theoretical analysis to characterize the brain functional network in three frequency bands (alpha, beta, and theta). RESULTS From the well-designed experiment, we found that physiological aging influences brain network connectivity and makes the functional brain network less differentiated. Moreover, there is an inverse relationship between alpha activity and WM load for the elderly group, which is absent in the young group. At the same time, theta band activity will be correlated with behavioral performance for the elderly group with WM training between sessions, which is also absent in the young group. To further study the influence of difficulty of tasks and training on the WM, we distinguish the tasks with quantified topological characteristics, and the classification results manifest that the training is more effective for the young group. Finally, through the establishment of a brain map before and after training, we find that the right parietal lobe plays an important role in the training of WM for the elderly group whereas the beta band plays an important role in WM for both the elderly group and the young group. CONCLUSION Taken together, our findings clarify the underlying mechanism of WM under different frequency bands in terms of physiological aging, the influence of training, and task difficulty. SIGNIFICANCE the working memory capacities can be uncovered in terms of the combination of three-way ANOVA and EEG-based graph theoretical analysis.
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Affiliation(s)
- Tao Xu
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
| | - Jiajia Huang
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
| | - Zian Pei
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
| | - Jiaqing Chen
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
| | - Junhua Li
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
| | - Anastasios Bezerianos
- Helllenic Institute of Transportation, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Nitish Thakor
- The N1 Institute, National University of Singapore, Singapore
| | - Hongtao Wang
- Faculty of Intelligent Manufacturing, Wuyi University, Jiangmen, China
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32
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Guan JT, Zheng X, Lai L, Sun S, Geng Y, Zhang X, Zhou T, Wu HZ, Chen JQ, Yang ZX, zheng XH, Wang JX, Chen W, Zhang YQ. Proton Magnetic Resonance Spectroscopy for Diagnosis of Non-Motor Symptoms in Parkinson's Disease. Front Neurol 2022; 13:594711. [PMID: 35295827 PMCID: PMC8918562 DOI: 10.3389/fneur.2022.594711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 01/04/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The current diagnosis of Parkinson's disease (PD) is mainly based on the typical clinical manifestations. However, 60% dopaminergic neurons have died when the typical clinical manifestations occur. Predictive neurobiomarkers may help identify those PD patients having non-motor disorders or in different stage and achieving the aim of early diagnosis. Up to date, few if any neuroimaging techniques have been described useful for non-movement disorders diagnosis in PD patients. Here, we investigated the alteration of metabolites in PD patients in different stage of PD and non-motor symptoms including sleep, gastrointestinal and cognitive dysfunction, by using the 1H-MRS. METHODS A total of 48 subjects were included between 2017 and 2019: 37 PD (15 men, age 47-82 years) and 11 healthy people (8 men, age 49-74 years). All participants underwent MRI and multi-voxel 1H-MRS examination within 3 days in admission. Six kinds of metabolites, such as creatine (Cr), N-acetyl aspartate/creatine (NAA/Cr), N-acetyl aspartate/choline (NAA/Cho), choline/creatine (Cho/Cr), lipid/creatine (LL/Cr), and myo-Inositol/creatine ratio (mI/Cr) were tested among the PD group and the control groups. Statistical analyses and correlation analyses were performed by using SPSS. The p < 0.05 was considered statistically significant. RESULTS Compared late PD group with a control group or early group, higher Cr ratio and lower NAA/Cr ratio were observed in the late PD group (p < 0.05). The mI/Cr in the late PD group was also lower than that in the early PD group (p < 0.05). Regarding the relationship between metabolites and NMS, Cho/Cr was higher in the sleep disorder group, whereas mI/Cr was lower in the gastrointestinal dysfunction group in comparison with the non-symptom groups. Moreover, Cr, Cho/Cr, mI/Cr, and LL/Cr were identified to have higher concentrations in the cognitive group in thalamus. CONCLUSIONS Proton magnetic resonance spectroscopy is an advanced tool to quantify the metabolic changes in PD. Three biomarkers (Cr, NAA/Cr, and mI/Cr) were detected in the late stage of PD, suggesting that these markers might be potential to imply the progression of PD. In addition, subgroups analysis showed that MRS of thalamus is a sensitive region for the detection of cognitive decline in PD, and the alteration of neurochemicals (involving Cr, Cho, mI, and LL) may be promising biomarkers to predict cognitive decline in PD.
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Affiliation(s)
- Ji-tian Guan
- Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Xin Zheng
- Cell Therapy Center, Beijing Institute of Geriatrics, Xuanwu Hospital Capital Medical University, National Clinical Research Center for Geriatric Diseases and Key Laboratory of Neurodegenerative Diseases, Ministry of Education, Beijing, China
| | - Lingfeng Lai
- Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Shuyi Sun
- Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Yiqun Geng
- Laboratory of Molecular Pathology, Shantou University Medical College, Shantou, China
| | - Xiaolei Zhang
- Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Teng Zhou
- Department of Computer Science, Shantou University, Shantou, China
| | - Huan-ze Wu
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Jia-qing Chen
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Zhong-xian Yang
- Department of Radiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Xiao-hong zheng
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Jia-xu Wang
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Wei Chen
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - You-qiao Zhang
- Department of Neurology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
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Wang W, Yue C, Gao S, Li S, Zhou J, Chen J, Fu J, Sun W, Hua C. Promising Roles of Exosomal microRNAs in Systemic Lupus Erythematosus. Front Immunol 2021; 12:757096. [PMID: 34966383 PMCID: PMC8710456 DOI: 10.3389/fimmu.2021.757096] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/25/2021] [Indexed: 12/12/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a prototypic autoimmune disease characterized by the loss of immune tolerance. Lupus nephritis (LN) is still a major cause of the morbidity and mortality of SLE. In clinical practice, diagnosis, and therapy of SLE is complicated and challenging due to lack of ideal biomarkers. Exosomes could be detected from numerous kinds of biological fluids and their specific contents are considered as hallmarks of autoimmune diseases. The exosomal miRNA profiles of SLE/LN patients significantly differ from those of the healthy controls making them as attractive biomarkers for renal injury. Exosomes are considered as optimal delivery vehicles owing to their higher stable, minimal toxicity, lower immunogenicity features and specific target effects. Endogenous miRNAs can be functionally transferred by exosomes from donor cells to recipient cells, displaying their immunomodulatory effects. In addition, it has been confirmed that exosomal miRNAs could directly interact with Toll-like receptors (TLRs) signaling pathways to regulate NF-κB activation and the secretion of inflammatory cytokines. The present Review mainly focuses on the immunomodulatory effects of exosomal-miRNAs, the complex interplay between exosomes, miRNAs and TLR signaling pathways, and how the exosomal-miRNAs can become non-invasive diagnostic molecules and potential therapeutic strategies for the management of SLE.
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Affiliation(s)
- Wenqian Wang
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chenran Yue
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Sheng Gao
- Laboratory Animal Center, Wenzhou Medical University, Wenzhou, China
| | - Shuting Li
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jianan Zhou
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jiaqing Chen
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jiahong Fu
- School of the 2nd Clinical Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Weijian Sun
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
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Abstract
Cancer therapy is moving beyond traditional chemotherapy to include epigenetic approaches. KDM6 demethylases are dynamic regulation of gene expression by histone demethylation in response to diverse stimuli, and thus their dysregulation has been observed in various cancers. In this review, we first briefly introduce structural features of KDM6 subfamily, and then discuss the regulation of KDM6, which involves the coordinated control between cellular metabolism (intrinsic regulators) and tumor microenvironment (extrinsic stimuli). We further describe the aberrant functions of KDM6 in human cancers, acting as either a tumor suppressor or an oncoprotein in a context-dependent manner. Finally, we propose potential therapy of KDM6 enzymes based on their structural features, epigenetics, and immunomodulatory mechanisms, providing novel insights for prevention and treatment of cancers.
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Affiliation(s)
- Chunyan Hua
- School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, China
| | | | - Shuting Li
- Wenzhou Medical University, Wenzhou, China
| | | | - Jiahong Fu
- Wenzhou Medical University, Wenzhou, China
| | - Weijian Sun
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wenqian Wang
- Department of Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
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Chen JQ, Liu SH, Luo J, Cai MR, Cheng YZ. [Investigation on freshwater crab populations and Paragonimus infections in the Minjiang River basin along the middle section of Wuyi Mountain]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:590-599. [PMID: 35128889 DOI: 10.16250/j.32.1374.2021154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To investigate the populations of freshwater crabs, the intermediate host of Paragonimus and Paragonimus infections in freshwater crabs in the Minjiang River basin along the middle section of Wuyi Mountain, so as to provide baseline data for parasitic disease control and research and expansion of the parasite resource bank. METHODS From November 2020 to April 2021, freshwater crabs were sampled from streams and ditches neighboring residential areas in Jianning County and its neighboring Ninghua, Shaowu, Jiangle and Shunchang counties. The crab species was identified based on the morphological features of the terminal segment of the first abdominal appendage of male crabs, and Paragonimus infections were detected in freshwater crabs. The Paragonimus metacercariae were isolated, and the types of metacercariae were identified based on the metacercaria size, cystic wall thickness, and the excretory bladder and intestinal tract morphology. In addition, the prevalence, intensity and index of metacercaria infections were calculated in freshwater crabs. RESULTS There were seven crab species found in Jianning County and six neighboring water systems along the Minjiang River basin, including Sinopotamon jianglense, S. fukinense, Huananpotamon lichuanense, H. lini, H. shenni, H. planopodum, Bottapotamon engelhardti, and there were metacercariae of three Paragonimus species detected in these crabs, including P. westermani, P. skrjabini and P. sanpingensis, with a prevalence rate of 43.6% (125/287). The infection rates of P. westermani, P. sanpingensis and P. skrjabini were 57.1% (48/84), 26.2% (22/84) and 61.8% (21/34) in S. jianglense, and the infection rates of P. westermani and P. sanpingensis were 52.6% (51/97) and 30.9% (30/97) in S. fukinense, while the rate of P. westermani infection was 6.9% (5/72) in H. lichuanense, which is the first record of P. westermani infections in H. lichuanense. Mixed P. westermani and P. sanpingensis infections were predominantly found in freshwater crabs sampled from Jianning County, where the rate of Paragonimus infections was 70.4% (76/108), with 15.3 metacercariae identified in each crab with Paragonimus infections and 1.9 metacercariae found in each gram of crabs with Paragonimus infections, and the index of metacercariae infections was 20.5. In addition, P. westermani, P. skrjabini and P. sanpingensi metacercariae were found in freshwater crabs sampled from Jianning-neighboring counties, where the rate of Paragonimus infections was 52.3% (56/107), with 9.8 metacercariae identified in each crab with Paragonimus infections and 0.9 metacercariae found in each gram of crabs with Paragonimus infections, and the index of metacercariae infections was 4.6. CONCLUSIONS There are multiple freshwater crab species and Paragonimus infection is high in freshwater crabs in Jianning County and its neighboring Minjiang River basin, which is a high-risk natural focus for Paragonimus infections.
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Affiliation(s)
- J Q Chen
- Jianning County Center for Disease Control and Prevention, Jianning, Fujian 354500, China
| | - S H Liu
- Jianning County Center for Disease Control and Prevention, Jianning, Fujian 354500, China
| | - J Luo
- Zhangzhou Municipal Center for Disease Control and Prevention, Zhangzhou, Fujian 363000, China
| | - M R Cai
- Zhangzhou Municipal Center for Disease Control and Prevention, Zhangzhou, Fujian 363000, China
| | - Y Z Cheng
- Fujian Provincial Center for Disease Control and Prevention, China
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Wang L, Guo X, Chen J, Zhen Z, Cao B, Wan W, Dou Y, Pan H, Xu F, Zhang Z, Wang J, Li D, Guo Q, Jiang Q, Du Y, Yu J, Heng BC, Han Q, Ge Z. Key considerations on the development of biodegradable biomaterials for clinical translation of medical devices: With cartilage repair products as an example. Bioact Mater 2021; 9:332-342. [PMID: 34820574 PMCID: PMC8586440 DOI: 10.1016/j.bioactmat.2021.07.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/08/2021] [Accepted: 07/26/2021] [Indexed: 01/09/2023] Open
Abstract
With the interdisciplinary convergence of biology, medicine and materials science, both research and clinical translation of biomaterials are progressing at a rapid pace. However, there is still a huge gap between applied basic research on biomaterials and their translational products - medical devices, where two significantly different perspectives and mindsets often work independently and non-synergistically, which in turn significantly increases financial costs and research effort. Although this gap is well-known and often criticized in the biopharmaceutical industry, it is gradually widening. In this article, we critically examine the developmental pipeline of biodegradable biomaterials and biomaterial-based medical device products. Then based on clinical needs, market analysis, and relevant regulations, some ideas are proposed to integrate the two different mindsets to guide applied basic research and translation of biomaterial-based products, from the material and technical perspectives. Cartilage repair substitutes are discussed here as an example. Hopefully, this will lay a strong foundation for biomaterial research and clinical translation, while reducing the amount of extra research effort and funding required due to the dissonance between innovative basic research and commercialization pipeline. To elucidate the chain of medical devices development and basic research process. To propose rationales of biomaterial research with mindset of clinical translation. To elaborate with established medical devices for cartilage repairs as examples.
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Affiliation(s)
- Li Wang
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, PR China
| | - Xiaolei Guo
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Jiaqing Chen
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, PR China
| | - Zhen Zhen
- Center for Medical Device Evaluation, National Medical Products Administration, Beijing, PR China
| | - Bin Cao
- Jiangsu DissueTech Medical Technology Co.Ltd
- DeJian Group, Suzhou, PR China
| | - Wenqian Wan
- Jiangsu DissueTech Medical Technology Co.Ltd
- DeJian Group, Suzhou, PR China
| | - Yuandong Dou
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, PR China
| | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, PR China
| | - Feng Xu
- Bioinspired Engineering and Biomechanics Center (BEBC), MOE Key Laboratory of Biomedical Information Engineering, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, PR China
| | - Zepu Zhang
- Beijing Institute of Science and Technology Evaluation, Beijing, PR China
| | - Jianmei Wang
- Beijing Institute of Science and Technology Evaluation, Beijing, PR China
| | - Daisong Li
- Beijing Institute of Science and Technology Evaluation, Beijing, PR China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, PR China
| | - Qing Jiang
- Department of Sports Medicine and Adult Reconstructive Surgery, State Key Laboratory of Pharmaceutical Biotechnology, The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School, Nanjing, PR China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, PR China
| | - Jiakuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, Beijing, PR China
| | - Boon Chin Heng
- School of Stomatology, Peking University, Beijing, PR China
| | - Qianqian Han
- National Institutes for Food and Drug Control, Beijing, PR China
| | - Zigang Ge
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, PR China.,Department of Biomedical Engineering, Institute of Future Technology, Peking University, Beijing, PR China
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Luo XL, Xu J, Xue C, Ruan MN, Yang M, Chen JQ, Huang XC, Chen J, Mei CL, Mao ZG. [Validation of a hyperkalemia prediction model in chronic kidney disease]. Zhonghua Yi Xue Za Zhi 2021; 101:3490-3494. [PMID: 34775707 DOI: 10.3760/cma.j.cn112137-20210715-01587] [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 validate the accuracy and consistency of a previously established prediction model for the occurrence of hyperkalemia in non-dialytic chronic kidney disease (CKD) patients. Methods: All patients diagnosed with CKD from Outpatient Department of Shanghai Changzheng Hospital during the 4th quarter of 2020 were recruited. Demographic data, clinical characteristics and prediction model-related parameters of the patients were collected and analyzed. Receiver operating characteristic (ROC) curve was drawn to evaluate the effectiveness of the model, and the specificity and sensitivity were calculated based on the cut-off value of 4 obtained from the previous model. The improved Hanley method was used to compare the area under the curve (AUC) between the previously established model and current validation dataset. The calibration curve was drawn to verify the model calibration degree. Results: A total of 434 patients diagnosed with non-dialytic CKD were enrolled, among whom 233 were males and 201 were females, with an average age of (55±16) years. According to the measured serum potassium values, the prevalence of hyperkalemia was 7.6%. And 33 patients were allocated to the hyperkalemia group and 401 patients were to the normal potassium group. There was no significant difference in age and sex between the two groups (both P>0.05). A combination of hyperkalemia and heart failure (27.3% vs 3.7%, P<0.001), diabetes (42.4% vs 19.7%, P=0.002), and acidosis (51.5% vs 7.0%, P<0.001) were more frequently in the hyperkalemia group, compared with the normal serum potassium group. Patients in the hyperkalemia group were more likely to have a past history of serum potassium ≥5.0 mmol/L (48.5% vs 2.5%, P<0.001). For the drugs that could increase serum potassium levels, there was a significant correlation between Chinese herbal medicine and the occurrence of hyperkalemia, while renin-angiotensin-aldosterone system inhibitor (RAASi) and potassium supplementation showed no significant difference between the two groups. The results of ROC curve analysis showed that the AUC was 0.914, with the sensitivity of 84.8% and the specificity of 79.8% with the cut-off value of 4. The difference of AUC between the previously established risk assessment model of hyperkalemia in patients with non-dialytic CKD and current validation dataset was not statistically significant (Z=1.924, P=0.054), indicating the good accuracy and consistency of the prediction model. In the calibration curve, when the predicted risk of patients was below 0.4 or above 0.6, the prediction effect of the model was better. Conclusion: The previously-constructed hyperkalemia prediction model in non-dialytic CKD patients had good accuracy and consistency, and could be used to evaluate the risk of hyperkalemia in all stages of non-dialytic CKD patients.
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Affiliation(s)
- X L Luo
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - J Xu
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - C Xue
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - M N Ruan
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - M Yang
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - J Q Chen
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - X C Huang
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - J Chen
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - C L Mei
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
| | - Z G Mao
- Department of Nephrology, Changzheng Hospital, Shanghai 200003, China
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Hu J, Chen J, Liu F, An S, Shi Y, Luan Z, Xiao J, Zhang B. Enhancing oil removal from wastewater by combining inclined plate settler and electrocoagulation. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1993258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jianlong Hu
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
| | - Jiaqing Chen
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
| | - Fan Liu
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
| | - Shenfa An
- Petroleum Engineering Technology Research Institute of Shengli Oilfield Branch, SINOPEC Group, Dongying, P. R. China
| | - Yi Shi
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
| | - Zhiyong Luan
- Petroleum Engineering Technology Research Institute of Shengli Oilfield Branch, SINOPEC Group, Dongying, P. R. China
| | - Jianhong Xiao
- Petroleum Engineering Technology Research Institute of Shengli Oilfield Branch, SINOPEC Group, Dongying, P. R. China
| | - Baosheng Zhang
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, Beijing, P. R. China
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Li Y, Wang C, Sun J, Guan Z, Chen J, Wang Z. Research and Application of Encryption System Based on Quantum Circuit for Mobile Internet Security. International Journal of Cognitive Informatics and Natural Intelligence 2021. [DOI: 10.4018/ijcini.20211001.oa26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Nowadays, the IoT technology is developing rapidly. In order to protect the information security of the IoT, this paper applies the characteristics of quantum circuit, such as high complexity and no feedback, into the field of encryption technology, and designed a encryption system based on quantum circuit. The system uses quantum circuit to construct the encryption algorithm, and realizes the mathematical operations and transformation in quantum logic which can be realized through quantum logic gates. Encryption system of quantum circuit can improve the encryption complexity, and its anti-attack ability is ( -1)! times of the traditional method, thus it can effectively protect the information security of the IoT. In order to increase the practicability of the system, this paper designed an interface module to facilitate the interaction of the system with the outside world .What’s more, the IoT application system is designed in which the validity and correctness of the encryption system are verified.
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Affiliation(s)
- Yuehua Li
- School of Information Science and Technology, Nantong University, Nantong, China
| | - Chengcheng Wang
- School of Information Science and Technology, Nantong University, Nantong, China
| | - Jiahao Sun
- School of Information Science and Technology, Nantong University, Nantong, China
| | - Zhijin Guan
- School of Information Science and Technology, Nantong University, Nantong, China
| | - Jiaqing Chen
- School of Information Science and Technology, Nantong University, Nantong, China
| | - Zelin Wang
- School of Information Science and Technology, Nantong University, Nantong, China
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40
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Affiliation(s)
- Guodong Ding
- School of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, 102249 Beijing, China
| | - Jiaqing Chen
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, 102617 Beijing, China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development, 102617 Beijing, China
| | - Zhenlin Li
- School of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, 102249 Beijing, China
| | - Xiaolei Cai
- School of Mechanical Engineering, Beijing Institute of Petrochemical Technology, 102617 Beijing, China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development, 102617 Beijing, China
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Wang XM, Wang L, Wang X, Chen JQ, Li C, Zhang WC, Ge XL, Shen WB, Hu MM, Yuan QQ, Xu YG, Hao CL, Zhou ZG, Qie S, Lu N, Han C, Pang QS, Wang P, Sun XC, Zhang KX, Li GF, Li L, Liu ML, Wang YD, Qiao XY, Zhu SC, Zhou ZM, Zhao YD, Xiao ZF. [Long-term efficacy and safety of simultaneous integrated boost radiotherapy in non-operative esophageal squamous cell carcinoma: a multicenter retrospective data analysis (3JECROG R-05)]. Zhonghua Zhong Liu Za Zhi 2021; 43:889-896. [PMID: 34407597 DOI: 10.3760/cma.j.cn112152-20190412-00234] [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 analyze the survival benefits and treatment related toxic effects of simultaneous integrated boost intensity-modulated radiotherapy (SIB-RT) for non-operative esophageal squamous cell carcinoma patients. Methods: The data of 2 132 ESCC patients who were not suitable for surgery or rejected operation, and underwent radical radiotherapy from 2002 to 2016 in 10 hospitals of Jing-Jin-Ji Esophageal and Esophagogastric Cancer Radiotherapy Oncology Group (3JECROG) were analyzed. Among them, 518 (24.3%) cases underwent SIB (SIB group) and 1 614 (75.7%) cases did not receive SIB (No-SIB group). The two groups were matched with 1∶2 according to propensity score matching (PSM) method (caliper value=0.02). After PSM, 515 patients in SIB group and 977 patients in No-SIB group were enrolled. Prognosis and treatment related adverse effects of these two groups were compared and the independent prognostic factor were analyzed. Results: The median follow-up time was 61.7 months. Prior to PSM, the 1-, 3-, and 5-years overall survival (OS) rates of SIB group were 72.2%, 42.8%, 35.5%, while of No-SIB group were 74.3%, 41.4%, 31.9%, respectively (P=0.549). After PSM, the 1-, 3-, and 5-years OS rates of the two groups were 72.5%, 43.4%, 36.4% and 75.3%, 41.7%, 31.6%, respectively (P=0.690). The univariate survival analysis of samples after PSM showed that the lesion location, length, T stage, N stage, TNM stage, simultaneous chemoradiotherapy, gross tumor volume (GTV) and underwent SIB-RT or not were significantly associated with the prognosis of advanced esophageal carcinoma patients who underwent radical radiotherapy (P<0.05). Cox model multivariate regression analysis showed lesion location, TNM stage, GTV and simultaneous chemoradiotherapy were independent prognostic factors of advanced esophageal carcinoma patients who underwent radical radiotherapy (P<0.05). Stratified analysis showed that, in the patients whose GTV volume≤50 cm(3), the median survival time of SIB and No-SIB group was 34.7 and 30.3 months (P=0.155), respectively. In the patients whose GTV volume>50 cm(3), the median survival time of SIB and No-SIB group was 16.1 and 20.1 months (P=0.218). The incidence of radiation esophagitis and radiation pneumonitis above Grade 3 in SIB group were 4.3% and 2.5%, significantly lower than 13.1% and 11% of No-SIB group (P<0.001). Conclusions: The survival benefit of SIB-RT in patients with locally advanced esophageal carcinoma is not inferior to non-SIB-RT, but without more adverse reactions, and shortens the treatment time. SIB-RT can be used as one option of the radical radiotherapy for locally advanced esophageal cancer.
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Affiliation(s)
- X M Wang
- Department of Radiation Oncology, Anyang Cancer Hospital, Anyang 455000, China
| | - L Wang
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - X Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Q Chen
- Department of Radiation Oncology, Fujian Cancer Hospital/Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - C Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W C Zhang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - X L Ge
- Department of Radiation Oncology, Jiangsu People's Hospital/the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - W B Shen
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - M M Hu
- Department of Radiation Oncology, Tengzhou Central People's Hospital, Tengzhou 277599, China
| | - Q Q Yuan
- Department of Radiation Oncology, Tengzhou Central People's Hospital, Tengzhou 277599, China
| | - Y G Xu
- Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - C L Hao
- Department of Radiation Oncology, Tengzhou Central People's Hospital, Tengzhou 277599, China
| | - Z G Zhou
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - S Qie
- Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - N Lu
- Department of Radiation Oncology, the 7th Medical Center of PLA Army General Hospital, Beijing 100700, China
| | - C Han
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Q S Pang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - P Wang
- Department of Radiation Oncology, Tianjin Medical University Cancer Institute and Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - X C Sun
- Department of Radiation Oncology, Jiangsu People's Hospital/the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - K X Zhang
- Department of Radiation Oncology, Tengzhou Central People's Hospital, Tengzhou 277599, China
| | - G F Li
- Department of Radiation Oncology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China
| | - L Li
- Department of Radiation Oncology, Tengzhou Central People's Hospital, Tengzhou 277599, China
| | - M L Liu
- Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding 071000, China
| | - Y D Wang
- Department of Radiation Oncology, the 7th Medical Center of PLA Army General Hospital, Beijing 100700, China
| | - X Y Qiao
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - S C Zhu
- Department of Radiation Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - Z M Zhou
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y D Zhao
- Department of Radiation Oncology, Anyang Cancer Hospital, Anyang 455000, China
| | - Z F Xiao
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Ding G, Chen J, Li Z, Cai X, Ji Y. An investigation on the bubbly flow of a
Venturi
channel based on the population balance model. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guodong Ding
- College of Mechanical and Transportation Engineering China University of Petroleum‐Beijing Beijing China
| | - Jiaqing Chen
- College of Mechanical Engineering Beijing Institute of Petrochemical Technology Beijing China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development Beijing China
| | - Zhenlin Li
- College of Mechanical and Transportation Engineering China University of Petroleum‐Beijing Beijing China
| | - Xiaolei Cai
- College of Mechanical Engineering Beijing Institute of Petrochemical Technology Beijing China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development Beijing China
| | - Yipeng Ji
- College of Mechanical Engineering Beijing Institute of Petrochemical Technology Beijing China
- Beijing Key Laboratory of Pipeline Critical Technology and Equipment for Deep Water Oil & Gas Development Beijing China
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Sang Y, He L, Chen J. Preparation and characterization of experimental oily wastewater: effect of rotor speeds and oil/water ratios in an in-line high-share mixer. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1950764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yimin Sang
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, China
| | - Liao He
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, China
| | - Jiaqing Chen
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, Beijing, China
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Zhao F, Zhu L, Wang Z, Hou Y, Chen J, Wang C, Xu D. Experimental and Numerical Investigation into the Heat- and Mass-Transfer Processes of n-Butane Adsorption on Activated Carbon. ACS Omega 2021; 6:17162-17172. [PMID: 34278103 PMCID: PMC8280664 DOI: 10.1021/acsomega.0c06273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 05/28/2021] [Indexed: 06/13/2023]
Abstract
In this work, the adsorption parameters of n-butane vapor on an absorbent were tested following the fixed-bed method. According to the corresponding experiments, the maximum adsorption capacity and breakthrough time of activated carbon (AC) are 0.2674 g·g-1 and 924 min, respectively. According to the two-energy-state model formula and the classical adsorption heat formula, the values of theoretical and actual adsorption heat of AC adsorbing n-butane are 5.48 and 5.56 kJ·mol-1, respectively. The model for adsorption of n-butane by an AC fixed bed is based on the analytical solutions to the mass, momentum, and energy conservation equations. The model is built using porous media zone in ANSYS Fluent, the implementation of the model into ANSYS Fluent under user-defined functions (UDFs) is also described, the mass source term Si and energy source term S T are loaded into Fluent through UDF, and then the mass- and heat-transfer processes of AC in the absorption of n-butane are simulated. Furthermore, the predictions by ANSYS Fluent are compared with in situ experimental data, and the deviation rate of breakthrough time and temperature of six monitoring points is less than 5%. The results verify the accuracy and feasibility of computational fluid dynamics (CFD). Therefore, the model can be used to predict the engineering application of the adsorption of organic gases by various porous media.
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Affiliation(s)
- Fei Zhao
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
| | - Ling Zhu
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
| | - Zhenzhong Wang
- SINOPEC
Research Institute of Safety Engineering, Qingdao, Shandong 266071, China
| | - Yan Hou
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
| | - Jiaqing Chen
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
| | - Chunyu Wang
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
- College
of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China
| | - Danyun Xu
- Department
of Environmental Engineering, Beijing Institute
of Petrochemical Technology, Beijing 102617, China
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45
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Abstract
Lipopolysaccharide (LPS) plays an important role in tumor suppression by activating macrophages. After macrophages activation, a trail of cytokines was secreted, including IL-1β. Previous studies reported that the anti-tumor function of IL-1β is concentration-dependent, and increasing the level of IL-1β will enhance its anti-tumor effect. Cytolysin A (ClyA), a member of the protein family called pore-forming toxins (PFTs), is secreted by Gram-negative bacteria, which has a potential role in enhancing the secretion of IL-1β. In this study, the function of Cytolysin A was evaluated by investigating its ability to induce innate immune responses in macrophages and the signaling pathway(s) involved in LPS-induced production of IL-1β. The production of IL-1β was highly enhanced when the macrophages were treated with LPS and ClyA together. The production of IL-1β was regulated by TLR4-MyD88-IL-1β pathway and NLRP3-ASC-Caspase1-IL1β pathway. By treating the colon cancer cell line CT26 with the conditioned medium, the proliferation of CT26 cells was inhibited and the apoptosis of CT26 cells was increased. In conclusion, this study indicated that ClyA enhances the production of IL-1β induced by LPS in human macrophages. The proliferation of CT26 cells was inhibited and the apoptosis was increased when being treated with the macrophage-conditioned media, which provides a feasible treatment for colon tumor.
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Affiliation(s)
- Y Guan
- Department of Ultrasound, The first affiliated Hospital of Hainan Medical University, Hainan, China
| | - J Q Chen
- Department of Radiology, Central South University Xiangya School of Medicine affiliated Haikou Hospital, Hainan, China
| | - X Y Li
- Department of Radiology, Central South University Xiangya School of Medicine affiliated Haikou Hospital, Hainan, China
| | - S N Jiang
- Department of Radiology, Central South University Xiangya School of Medicine affiliated Haikou Hospital, Hainan, China
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Ren Y, Chen J, Chen P, Hao Q, Cheong LK, Tang M, Hong LL, Hu XY, Celestial T Yap, Bay BH, Ling ZQ, Shen HM. Oxidative stress-mediated AMPK inactivation determines the high susceptibility of LKB1-mutant NSCLC cells to glucose starvation. Free Radic Biol Med 2021; 166:128-139. [PMID: 33636336 DOI: 10.1016/j.freeradbiomed.2021.02.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 12/16/2022]
Abstract
The liver kinase B1 (LKB1) is an important tumor suppressor and its loss-of-function mutations are observed in around 16% of non-small cell lung cancer (NSCLC) cases. One of the main functions of LKB1 is to activate AMP-activated protein kinase (AMPK) via direct phosphorylation. Under metabolic or energy stress conditions, the LKB1-AMPK axis inhibits the anabolic pathways and activates the catabolic pathways to maintain metabolic homeostasis for cell survival. In this study, we found that LKB1-mutant NSCLC cells are particularly susceptible to cell death induced by glucose starvation, but not by other forms of starvation such as amino acid starvation or serum starvation. Reconstitution of LKB1 in LKB1-mutant cells or LKB1 knockout in LKB1-wild type cells highlighted the importance of the LKB1-AMPK axis for cell survival under glucose starvation. Mechanistically, in LKB1-mutant cells, glucose starvation elicits oxidative stress, which causes AMPK protein oxidation and inactivation, and eventually cell death. Importantly, this process could be effectively reversed and rescued by 2DG (a glucose analog capable of producing NADPH, a key antioxidant), A769662 (an allosteric AMPK activator), and N-acetyl cysteine (NAC) (a ROS scavenger), indicating the presence of a vicious circle between AMPK inactivation and ROS in LKB1-mutant NSCLC cells under glucose starvation. Our study thus elucidates the critical role of redox balance in determining the susceptibility to cell death under glucose starvation in LKB1-mutant NSCLC cells. The findings from this study reveal important clues in search of novel therapeutic strategies for LKB1-mutant NSCLC by targeting glucose metabolism and redox balance.
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Affiliation(s)
- Yi Ren
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jiaqing Chen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Peishi Chen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Qi Hao
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Leng-Kuan Cheong
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Mingzhu Tang
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Lian-Lian Hong
- Experimental Research Centre, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Xuan-Yu Hu
- Experimental Research Centre, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China; Department of Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, 450052, China
| | - Celestial T Yap
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Boon-Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Zhi-Qiang Ling
- Experimental Research Centre, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Han-Ming Shen
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
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Ju L, Yu M, Zhu LJ, Jia ZY, Zhang M, Chen JQ. [Chronic toxicity of Multi-walled carbon nanotubes in human pleural mesothelial cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:173-177. [PMID: 33781031 DOI: 10.3760/cma.j.cn121094-20190919-00382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the chronic toxicity and its potential mechanism of multi-walled carbon nanotube (MWCNT) in human pleural mesothelial cells. Methods: A sustainable exposure of MeT-5A cells to MWCNT at 10 μg/cm(2) for one year was conducted in 2016. During the exposure, the cell images and cell proliferation was recorded every 4 weeks. The cell apoptosis, cell cycle, cell migration and cell invasion were compared between the control cells and the cells after MWCNT exposure. Finally, the gene expression was screened with Affymetrix clariom D assay, and some of the significantly differential expressed genes was verified by RT-PCR. Results: Compared with the control group, the proliferation ability of the cells in the 1-year exposed group was significantly increased, and the rate of proliferation was about 2-3 times as that in the Control Group (F=481.32, P<0.05) . MeT-5A cells all showed cell cycle arrest effect, which showed the increase of G1 phase and the decrease of s phase and G2 phase (F=14.94, P<0.05) . The apoptosis rate of cells in the treated group was significantly higher than that in the control group after 6 months (F=15.12, P<0.05) , but the early apoptosis rate and the total apoptosis rate of cells in the treated group were not significantly different from those in the control group after 1 year (F=3.97, P<0.05) . The cell migration and invasion were both promoted by MWCNT. Furthermore, the differentially expressed genes was screened, to find 2, 878 genes with more than 2 folds changes. To further verified, RT-PCR was conducted with PIK3R3、WNT2B、VANGL2、ANXA1, and their expression changes were consistent with above. Conclusion: MWCNT might have a carcinogenic potential to MeT-5A cells after the long term exposure.
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Affiliation(s)
- L Ju
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
| | - M Yu
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
| | - L J Zhu
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
| | - Z Y Jia
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
| | - M Zhang
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
| | - J Q Chen
- Institute of Occupational Diseases, Hangzhou Medical College, Hangzhou 310013, China
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48
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Ren Y, Yu M, Chen JQ. [Research progress on lung tissue damage caused by artificial quartz stone dust]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:157-160. [PMID: 33691377 DOI: 10.3760/cma.j.cn121094-20200623-00361] [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
Artificial quartz stone is a new type of decorative building material, there are serious dust exposure hazards during the production and processing. Due to the lack of effective health protection for practitioners, silicosis caused by artificial quartz stone dust has been widely reported worldwide in recent years, which seriously affect the health of practitioners. This article summarizes the use status of artificial quartz stone, the exposure of practitioners and the lung tissue damage caused by dust, analyzes its pathogenic characteristics, and provides a basis for protecting the occupational population and improving occupational health.
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Affiliation(s)
- Y Ren
- Institute of Occupational Disease Prevention, Hangzhou Medical College, Hangzhou 310013, China
| | - M Yu
- Institute of Occupational Disease Prevention, Hangzhou Medical College, Hangzhou 310013, China
| | - J Q Chen
- Institute of Occupational Disease Prevention, Hangzhou Medical College, Hangzhou 310013, China
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49
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Qin LH, Zhu XJ, Zhang LY, Chen JQ, Jin GY, Xiang LJ. Identification of hub genes and pathways in the development of gastric cancer by gene co‑expression network analysis. J BIOL REG HOMEOS AG 2021; 35:35-44. [PMID: 33601878 DOI: 10.23812/20-478-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
There are many risk factors for gastric cancer (GC), including chronic atrophic gastritis, which involves multiple genes and signaling pathways. Weighted gene co-expression network analysis (WGCNA) was performed on GSE111762 to construct free-scale gene co-expression networks and identified four significant modules that consisted of blue, dark orange, dark red and dark violet. In each module, genes with the most connectivity were selected as hub genes, including G antigen 12J (GAGE12J) in blue, proline, histidine and glycine rich 1 (PHGR1) in dark orange, DNA polymerase gamma 2, accessory subunit (POLG2) in dark red and collagen type XXI alpha 1 chain (COL21A1) in dark violet. The transcription level of COL21A1 and GAGE12J was up-regulated in atrophic gastritis vs normal gastric mucosa, but down-regulated in GC vs atrophic gastritis. PHGR1 was consistently down-regulated from normal gastric mucosa to GC, while POLG2 was up-regulated. Gene set enrichment analysis (GSEA) was then conducted to study the biological functions of hub genes in the development of GC. It showed that multiple tumorigenesis-related pathways were enriched, including peroxisome, DNA repair and KRAS signaling pathway in COL21A1, IL6-JAK-STAT3, epithelial mesenchymal transition (EMT) and TNFα-NF-κB signaling pathway in PHGR1, MYC targets, E2F targets and angiogenesis in POLG2 and peroxisome, Notch signaling pathway and androgen response in GAGE12J. The identified four genes, especially for COL21A1, PHGR1 and POLG2, were important in GC tumorigenesis and affected many cancer-related pathways.
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Affiliation(s)
- L H Qin
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
| | - X J Zhu
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
| | - L Y Zhang
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
| | - J Q Chen
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
| | - G Y Jin
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
| | - L J Xiang
- Department of Gastroenterology, Shangyu People's Hospital, Shaoxing, Zhejiang, China
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50
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Ni QH, Zhao YP, Lyu L, Yang SF, Zhang L, Chen JQ. [Ultrasound-guided percutaneous transluminal angioplasty in the treatment of arteriovenous fistula immaturation: day surgery mode and clinical efficacy]. Zhonghua Yi Xue Za Zhi 2021; 101:416-420. [PMID: 33611891 DOI: 10.3760/cma.j.cn112137-20200711-02088] [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 summarize the clinical effect of ultrasound-guided percutaneous transluminal angioplasty (PTA) in the treatment of arteriovenous fistula (AVF) immaturation under day surgery mode. Methods: The clinical data was retrospective analyzed of patients with AVF immaturation who were treated by ultrasound-guided PTA under day surgery mode from November 2016 to June 2019 in Renji Hospital. The basic information, lesion location, puncture approach, number and diameter of balloon used were counted. The primary and secondary patency rates were calculated at 6 and 12 months after operation. Results: In all of the 21 patients, 11 patients were male and 10 patients were female. The mean age was (52.6±12.9) years old. There were 20 of the 21 patients who were treated successfully. One patient had AVF reconstruction with vascular rupture, and the complication rate was 4.8% (1/21). The length of hospitalization was (1.05±0.71) days, and the cost was (11 487.7±4 401.4) yuan. The follow-up time was (19.7±8.3) months. The 6-month and 12-month primary patency rate were 70% and 55%, and the 6-month and 12-month secondary patency rate were both 90%. Conclusion: Ultrasound-guided PTA in the treatment of AVF immaturation under day surgery mode is safe and effective, which has a high technical success rate and good patency rate for AVF maturation.
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Affiliation(s)
- Q H Ni
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Y P Zhao
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - L Lyu
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - S F Yang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - L Zhang
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - J Q Chen
- Department of Vascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
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