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Zhang Q, Yang Y, Huo S, Duan S, Han T, Liu G, Zhang K, Chen D, Yang G, Chen H. Laser Direct Writing of Setaria Virids-Inspired Hierarchical Surface with TiO 2 Coating for Anti-Sticking of Soft Tissue. MICROMACHINES 2024; 15:1155. [PMID: 39337815 PMCID: PMC11433979 DOI: 10.3390/mi15091155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2024] [Revised: 09/11/2024] [Accepted: 09/13/2024] [Indexed: 09/30/2024]
Abstract
In minimally invasive surgery, the tendency for human tissue to adhere to the electrosurgical scalpel can complicate procedures and elevate the risk of medical accidents. Consequently, the development of an electrosurgical scalpel with an anti-sticking coating is critically important. Drawing inspiration from nature, we identified that the leaves of Setaria Virids exhibit exceptional non-stick properties. Utilizing this natural surface texture as a model, we designed and fabricated a specialized anti-sticking surface for electrosurgical scalpels. Employing nanosecond laser direct writing ablation technology, we created a micro-nano textured surface on the high-frequency electrosurgical scalpel that mimics the structure found on Setaria Virids leaves. Subsequently, a TiO2 coating was deposited onto the ablated scalpel surface via magnetron sputtering, followed by plasma-induced hydrophobic modification and treatment with octadecyltrichlorosilane (OTS) to enhance the surface's affinity for silicone oil, thereby constructing a self-lubricating and anti-sticking surface. The spreading behavior of deionized water, absolute ethanol, and dimethyl silicone oil on this textured surface is investigated to confirm the effectiveness of the self-lubrication mechanism. Furthermore, the sticking force and quality are compared between the anti-sticking electrosurgical scalpel and a standard high-frequency electrosurgical scalpel to demonstrate the efficacy of the nanosecond laser-ablated micro-nano texture in preventing sticking. The findings indicate that the self-lubricating anti-sticking surface fabricated using this texture exhibits superior anti-sticking properties.
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Affiliation(s)
- Qingxu Zhang
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Yanyan Yang
- 960 Hospital of the PLA, Tai’an 271000, China;
| | - Shijie Huo
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Shucheng Duan
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Tianao Han
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Guang Liu
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Kaiteng Zhang
- College of Transportation, Ludong University, Yantai 264025, China; (K.Z.); (D.C.)
| | - Dengke Chen
- College of Transportation, Ludong University, Yantai 264025, China; (K.Z.); (D.C.)
| | - Guang Yang
- School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (Q.Z.); (S.H.); (S.D.); (T.H.); (G.Y.)
| | - Huawei Chen
- School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
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Zhang F, Lu G, Wang X, Wu L, Li R, Nie Y. Concept, breakthrough, and future of colonic transendoscopic enteral tubing. Chin Med J (Engl) 2024; 137:633-635. [PMID: 38321613 PMCID: PMC10950190 DOI: 10.1097/cm9.0000000000003020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Indexed: 02/08/2024] Open
Affiliation(s)
- Faming Zhang
- Department of Microbiota Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Gaochen Lu
- Department of Microbiota Medicine, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210011, China
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Air Force Medical University, Xi’an, Shaanxi 710032, China
| | - Lihao Wu
- Department of Gastroenterology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong 510062, China
| | - Rui Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215001, China
| | - Yongzhan Nie
- Xijing Hospital of Digestive Diseases, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi 710032, China
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Masunaga T, Kato M, Sasaki M, Iwata K, Miyazaki K, Kubosawa Y, Mizutani M, Takatori Y, Matsuura N, Nakayama A, Takabayashi K, Yahagi N. Novel quantitative assessment indicators for efficiency and precision of endoscopic submucosal dissection in animal training models by analyzing an electrical surgical unit. Dig Endosc 2024; 36:19-27. [PMID: 37405690 DOI: 10.1111/den.14632] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 07/02/2023] [Indexed: 07/06/2023]
Abstract
OBJECTIVES Although endoscopic submucosal dissection (ESD) training is important, quantitative assessments have not been established. This study aimed to explore a novel quantitative assessment system by analyzing an electrical surgical unit (ESU). METHODS This was an ex vivo study. Step one: to identify the novel efficiency indicators, 20 endoscopists performed one ESD each, and we analyzed correlations between their resection speed and electrical status. Step two: to identify the novel precision indicators, three experts and three novices performed one ESD each, and we compared the stability of the electrical status. Step three: three novices in step two performed 19 additional ESDs, and we analyzed the learning curve using novel indicators. RESULTS Step one: the percentage of total activation time (AT) of ESU in the procedure time (β coefficient, 0.80; P < 0.01) and AT required for submucosal dissection (β coefficient, -0.57; P < 0.01) were significantly correlated with the resection speed. Step two: coefficient of variation of the AT per one pulse (0.16 [range, 0.13-0.17] vs. 0.26 [range, 0.20-0.41], P = 0.049) and coefficient of variation of the peak electric power per pulse during mucosal incision (0.14 [range, 0.080-0.15] vs. 0.25 [range, 0.24-0.28], P = 0.049) were significantly lower in the experts than in the novices. Regarding the learning curve, the percentage of total AT of ESU in the procedure time and AT required for submucosal dissection had a trend of improvement. CONCLUSION Novel indicators identified by analyzing ESU enable quantitative assessment for endoscopist's skill.
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Affiliation(s)
- Teppei Masunaga
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Motohiko Kato
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Motoki Sasaki
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Kentaro Iwata
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Kurato Miyazaki
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Yoko Kubosawa
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Mari Mizutani
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Yusaku Takatori
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Noriko Matsuura
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Atsushi Nakayama
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Kaoru Takabayashi
- Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo, Japan
| | - Naohisa Yahagi
- Division of Research and Development for Minimally Invasive Treatment, Cancer Center, Keio University School of Medicine, Tokyo, Japan
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Han Y, Zhu X, Hu Y, Yu C, Guo Y, Hang D, Pang Y, Pei P, Ma H, Sun D, Yang L, Chen Y, Du H, Yu M, Chen J, Chen Z, Huo D, Jin G, Lv J, Hu Z, Shen H, Li L. Electronic Health Record-Based Absolute Risk Prediction Model for Esophageal Cancer in the Chinese Population: Model Development and External Validation. JMIR Public Health Surveill 2023; 9:e43725. [PMID: 36781293 PMCID: PMC10132027 DOI: 10.2196/43725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/09/2023] [Accepted: 02/03/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND China has the largest burden of esophageal cancer (EC). Prediction models can be used to identify high-risk individuals for intensive lifestyle interventions and endoscopy screening. However, the current prediction models are limited by small sample size and a lack of external validation, and none of them can be embedded into the booming electronic health records (EHRs) in China. OBJECTIVE This study aims to develop and validate absolute risk prediction models for EC in the Chinese population. In particular, we assessed whether models that contain only EHR-available predictors performed well. METHODS A prospective cohort recruiting 510,145 participants free of cancer from both high EC-risk and low EC-risk areas in China was used to develop EC models. Another prospective cohort of 18,441 participants was used for validation. A flexible parametric model was used to develop a 10-year absolute risk model by considering the competing risks (full model). The full model was then abbreviated by keeping only EHR-available predictors. We internally and externally validated the models by using the area under the receiver operating characteristic curve (AUC) and calibration plots and compared them based on classification measures. RESULTS During a median of 11.1 years of follow-up, we observed 2550 EC incident cases. The models consisted of age, sex, regional EC-risk level (high-risk areas: 2 study regions; low-risk areas: 8 regions), education, family history of cancer (simple model), smoking, alcohol use, BMI (intermediate model), physical activity, hot tea consumption, and fresh fruit consumption (full model). The performance was only slightly compromised after the abbreviation. The simple and intermediate models showed good calibration and excellent discriminating ability with AUCs (95% CIs) of 0.822 (0.783-0.861) and 0.830 (0.792-0.867) in the external validation and 0.871 (0.858-0.884) and 0.879 (0.867-0.892) in the internal validation, respectively. CONCLUSIONS Three nested 10-year EC absolute risk prediction models for Chinese adults aged 30-79 years were developed and validated, which may be particularly useful for populations in low EC-risk areas. Even the simple model with only 5 predictors available from EHRs had excellent discrimination and good calibration, indicating its potential for broader use in tailored EC prevention. The simple and intermediate models have the potential to be widely used for both primary and secondary prevention of EC.
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Affiliation(s)
- Yuting Han
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Xia Zhu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Yizhen Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Canqing Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Peking University Center for Public Health and Epidemic Preparedness and Response, Beijing, China
| | - Yu Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Dong Hang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Yuanjie Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Pei Pei
- Chinese Academy of Medical Sciences, Beijing, China
| | - Hongxia Ma
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Dianjianyi Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Peking University Center for Public Health and Epidemic Preparedness and Response, Beijing, China
| | - Ling Yang
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, United Kingdom
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Yiping Chen
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, United Kingdom
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Huaidong Du
- Medical Research Council Population Health Research Unit, University of Oxford, Oxford, United Kingdom
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Min Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - Junshi Chen
- China National Center for Food Safety Risk Assessment, Beijing, China
| | - Zhengming Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Dezheng Huo
- Department of Public Health Sciences, The University of Chicago, Chicago, IL, United States
| | - Guangfu Jin
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Peking University Center for Public Health and Epidemic Preparedness and Response, Beijing, China
| | - Zhibin Hu
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Hongbing Shen
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, China International Cooperation Center for Environment and Human Health, Nanjing Medical University, Nanjing, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
- Peking University Center for Public Health and Epidemic Preparedness and Response, Beijing, China
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Yang Z, Zhao R, Gao W. The effects of curcumin on the biological behavior of colorectal cancer cells through the JAK/STAT3 and RAS/MAPK/NF-κB pathways. INVESTIGACIÓN CLÍNICA 2022. [DOI: 10.54817/ic.v63n4a03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The purpose of this work was to investigate the effects of curcumin on the biological behavior of colorectal cancer cells through the JAK/STAT3 and RAS/MAPK/NF-κB pathways. Human colorectal cancer HCT116 cells were cultured and divided into a control group and low, medium and high-dose curcumin groups (n =5). HCT116 colorectal cancer cells became long-growing cells after incubation and culture at 37°C. The control group was treated with 15μL phosphate-buffered saline, and the low-dose, medium-dose and high-dose curcumin groups were treated with 20, 40 and 80μmol/L curcumin, respectively. All groups were treated with rel-evant drug intervention, digested and centrifuged for 48h, washed twice with a PBS solution, centrifuged at 1000 rpm for 3 min, and the cells precipitated. The prolif-eration, apoptosis and growth cycle of cells in each group were observed, and the ex-pressions of the JAK/STAT3 and RAS/MAPK/NF-κB pathways and related proteins in each group were studied. Compared with the curcumin low-dose and medium-dose groups, the proliferation ability of the curcumin high-dose group was significantly decreased (P<0.05). When the low-dose and medium-dose curcumin groups were compared with the high-dose curcumin group, the apoptosis ability was significantly increased (P<0.05). When the low-dose and medium-dose curcumin groups were compared, the growth ratio of the G0/G1 phase in the high-dose curcumin group was significantly increased, and the percentage of the S phase was significantly de-creased (P<0.05). Compared with the curcumin low-dose and medium-dose groups, the expression of JAK-STAT3 and RAS/MAPK/NF-κB pathway in the curcumin high-dose group was significantly decreased (P<0.05). The protein expressions of STAT3, RAS, P-P38 and P65 in the curcumin high-dose group were significantly lower than those in the curcumin low-dose and medium-dose groups (P<0.05). Curcumin can inhibit the expression of JAK/STAT3 and RAS/MAPK/NF-κB pathways, block the growth cycle, and inhibit the proliferation and induce apoptosis of colorectal cancer cells, providing a new idea for the clinical treatment of colorectal cancer.
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Affiliation(s)
- Zhe Yang
- Department of Radiotherapy, Baoji Municipal Central Hospital, Baoji, China
| | - Rui Zhao
- Department of Anorectal Surgery, BaMunicipal Central Hospital, Baoji, China
| | - Wangjun Gao
- Department of General Surgery, Ankang Central Hospital, Ankang, China
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