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Development and validation of a prediction model for early screening of people at high risk for colorectal cancer
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作者 Ling-Li Xu Yi Lin +3 位作者 Li-Yuan Han Yue Wang Jian-Jiong Li xiao-yu dai 《World Journal of Gastroenterology》 SCIE CAS 2024年第5期450-461,共12页
BACKGROUND Colorectal cancer(CRC)is a serious threat worldwide.Although early screening is suggested to be the most effective method to prevent and control CRC,the current situation of early screening for CRC is still... BACKGROUND Colorectal cancer(CRC)is a serious threat worldwide.Although early screening is suggested to be the most effective method to prevent and control CRC,the current situation of early screening for CRC is still not optimistic.In China,the incidence of CRC in the Yangtze River Delta region is increasing dramatically,but few studies have been conducted.Therefore,it is necessary to develop a simple and efficient early screening model for CRC.AIM To develop and validate an early-screening nomogram model to identify individuals at high risk of CRC.METHODS Data of 64448 participants obtained from Ningbo Hospital,China between 2014 and 2017 were retrospectively analyzed.The cohort comprised 64448 individuals,of which,530 were excluded due to missing or incorrect data.Of 63918,7607(11.9%)individuals were considered to be high risk for CRC,and 56311(88.1%)were not.The participants were randomly allocated to a training set(44743)or validation set(19175).The discriminatory ability,predictive accuracy,and clinical utility of the model were evaluated by constructing and analyzing receiver operating characteristic(ROC)curves and calibration curves and by decision curve analysis.Finally,the model was validated internally using a bootstrap resampling technique.RESULTS Seven variables,including demographic,lifestyle,and family history information,were examined.Multifactorial logistic regression analysis revealed that age[odds ratio(OR):1.03,95%confidence interval(CI):1.02-1.03,P<0.001],body mass index(BMI)(OR:1.07,95%CI:1.06-1.08,P<0.001),waist circumference(WC)(OR:1.03,95%CI:1.02-1.03 P<0.001),lifestyle(OR:0.45,95%CI:0.42-0.48,P<0.001),and family history(OR:4.28,95%CI:4.04-4.54,P<0.001)were the most significant predictors of high-risk CRC.Healthy lifestyle was a protective factor,whereas family history was the most significant risk factor.The area under the curve was 0.734(95%CI:0.723-0.745)for the final validation set ROC curve and 0.735(95%CI:0.728-0.742)for the training set ROC curve.The calibration curve demonstrated a high correlation between the CRC high-risk population predicted by the nomogram model and the actual CRC high-risk population.CONCLUSION The early-screening nomogram model for CRC prediction in high-risk populations developed in this study based on age,BMI,WC,lifestyle,and family history exhibited high accuracy. 展开更多
关键词 Colorectal cancer Early screening model High-risk population Nomogram model Questionnaire survey Dietary habit Living habit
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Study of the potential mechanism of acupuncture treatment for functional dyspepsia based on association rule mining and bioinformatics/network pharmacology approach
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作者 An-Lan Zhao Ling-Yong Xiao +2 位作者 Hong-Yue Niu Lian Liu xiao-yu dai 《Gastroenterology & Hepatology Research》 2023年第2期6-15,共10页
Objective:To explore the main acupoint prescription and mechanism of acupuncture in treating Functional dyspepsia(FD)by analyzing the clinical randomized controlled trial literature on acupoints and targets of acupunc... Objective:To explore the main acupoint prescription and mechanism of acupuncture in treating Functional dyspepsia(FD)by analyzing the clinical randomized controlled trial literature on acupoints and targets of acupuncture in the treatment of FD combined with association rule mining and bioinformatics/network pharmacology methods.Methods:Search relevant clinical randomized controlled trial literature on acupoints and therapeutic targets of acupuncture in the treatment of FD from eight databases from their inception to June 18th,2022.We obtained acupuncture selection points,meridian,and therapeutic targets and established acupoints database for acupuncture treatment of FD.FD-related targets were collected from GeneCards,DisGeNET,OMIM,and DrugBank databases.We obtained the potential targets of acupuncture on FD by taking the intersection of acupuncture for FD therapeutic targets and FD-related targets.We performed the protein-protein interaction network,Gene Ontology(GO)analysis,and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment analysis.Results:In this study,26 Randomized Controlled Trials related to acupuncture treatment of FD were retrieved.We obtained 29 acupoints,17 acupuncture for FD therapeutic targets,and 10 intersection targets.Tumor necrosis factor(TNF),Interleukin(IL)-1,and Neuropeptide Y(NPY)are key targets of acupuncture in the treatment of FD.Conclusion:ST36-CV12-PC6-LR3 is the main acupoint prescription for FD.Acupuncture may affect Neuroactive ligand-receptor interaction,Gastric acid secretion,and IL-17,TNF signaling pathways by regulating related key targets,and play a synergistic role in the treatment of FD by inhibiting gastric acid secretion,alleviating inflammatory response,regulating the brain-gut axis,improving mood and other aspects. 展开更多
关键词 ACUPUNCTURE functional dyspepsia network acupuncture MECHANISM
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自体血标记定位法在腹腔镜结直肠手术中的应用效果 被引量:5
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作者 蔡平 戴晓宇 李坚炯 《中国内镜杂志》 2020年第3期73-76,共4页
目的评价术前经肠镜浆膜下自体血标记定位法在腹腔镜结直肠手术中的应用效果。方法对60例需行腹腔镜结直肠癌根治术的患者进行前瞻性研究。术前1 d行肠镜检查,在肿瘤下缘0.5 cm处行浆膜下四点法自体血标记肿瘤定位,术中观察寻找标记位置... 目的评价术前经肠镜浆膜下自体血标记定位法在腹腔镜结直肠手术中的应用效果。方法对60例需行腹腔镜结直肠癌根治术的患者进行前瞻性研究。术前1 d行肠镜检查,在肿瘤下缘0.5 cm处行浆膜下四点法自体血标记肿瘤定位,术中观察寻找标记位置,术后剖视标本确认定位是否准确,对操作时间、操作成功率以及有无并发症进行评估,术后病理评估切除标本的切缘情况。结果成功在58例患者中确定了自体血标记部位,顺利完成了腹腔镜结直肠癌根治术,成功率96.7%,所有患者均无出血、穿孔和发热等并发症;2例未找到标记点,行术中肠镜定位后成功手术。手术过程均顺利。术后剖视标本,60例患者均显示定位准确,其中2例患者肿瘤位于脾曲,标记在背侧显示,腹侧无标记,导致术中无法辨认,标本病理回报显示切缘均阴性。结论经肠镜浆膜下自体血标记为腹腔镜结直肠手术前定位提供了一种安全简便、经济有效的方法,可以成为新的替代方法。 展开更多
关键词 结直肠肿瘤 腹腔镜手术 定位 自体血标记 肠镜
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肠镜下切开引流术治疗直肠黏膜下脓肿的初步研究 被引量:4
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作者 蔡平 戴晓宇 +1 位作者 李坚炯 周海萍 《中国内镜杂志》 2019年第12期76-79,共4页
目的评价肠镜下切开引流术治疗直肠黏膜下脓肿的临床疗效和安全性。方法回顾性分析2013年1月-2018年12月在中国科学院大学宁波华美医院行肠镜下直肠黏膜下脓肿切开引流术的70例患者的临床资料,分析治疗及并发症发生情况。结果均成功行... 目的评价肠镜下切开引流术治疗直肠黏膜下脓肿的临床疗效和安全性。方法回顾性分析2013年1月-2018年12月在中国科学院大学宁波华美医院行肠镜下直肠黏膜下脓肿切开引流术的70例患者的临床资料,分析治疗及并发症发生情况。结果均成功行肠镜下脓肿切开引流术,平均操作时间(15.0±5.2)min。24例患者脓腔巨大置入引流管,46例患者脓腔较小置入引流条,3 d后拔除引流管及引流条。所有患者均治愈出院,无明显并发症发生,无1例死亡。术后随访12个月,16例患者形成肛瘘,来院行肛瘘手术后治愈,54例患者未再复发。结论在有经验的内镜中心,对于直肠黏膜下脓肿患者行肠镜下切开引流术是一种安全、有效的微创治疗方法。 展开更多
关键词 黏膜下脓肿 直肠 肠镜 切开引流 肛瘘
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Giant Goos–Hnchen shifts of waveguide coupled long-range surface plasmon resonance mode
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作者 游琪 祝家齐 +3 位作者 郭珺 吴雷明 戴小玉 项元江 《Chinese Physics B》 SCIE EI CAS CSCD 2018年第8期30-34,共5页
A hybrid structure based on a planar waveguide(PWG) mode coupling a long-range surface plasmon resonance(LRSPR) mode is proposed to enhance the GH shift. Both the PWG mode and LRSPR mode can be in strong resonance, an... A hybrid structure based on a planar waveguide(PWG) mode coupling a long-range surface plasmon resonance(LRSPR) mode is proposed to enhance the GH shift. Both the PWG mode and LRSPR mode can be in strong resonance, and these two modes can be coupled together due to the normal-mode splitting. The largest GH shift of PWG-coupled LRSPR structure is 4156 times that of the incident beam, which is 23 times and 3.6 times that of the surface plasmon resonance(SPR) structure and the LRSPR structure, respectively. As a GH shift sensor, the highest sensitivity of 4.68 × 10~7λ is realized in the coupled structure. Compared with the sensitivity of the traditional SPR structure, the sensitivity of our structure is increased by more than 2 orders, which theoretically indicates that the proposed configuration can be applied to the field of high-sensitivity sensors in the future. 展开更多
关键词 物理学 中国 理论分析 科学研究
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