1.Effects of isorhamnetin on the development of gastric cancer by up-regulating SLC25A25-AS1
Yang ZHANG ; Jing WANG ; Lisha NA ; Aoran ZENG ; Bowen PANG ; Yulin LIU
China Pharmacy 2025;36(8):932-938
OBJECTIVE To explore the effects of isorhamnetin on the development of gastric cancer through up-regulation of solute carrier family 25 member 25 antisense RNA 1(SLC25A25-AS1). METHODS Using BALB/c nude mice as the subjects, the xenograft tumor model was established by subcutaneously inoculating human gastric cancer MKN28 cells into the axillary region. The effects of low and high doses of isorhamnetin (20 and 40 mg/kg) on the tumor volume and mass in nude mice were investigated. MKN28 cells were selected and divided into control group, isorhamnetin group (70 μmol/L, similarly hereinafter), isorhamnetin+knocking down negative control group, isorhamnetin+knocking down SLC25A25-AS1 group, isorhamnetin+ overexpression negative control group and isorhamnetin+overexpressing SLC25A25-AS1 group. Effects of knocking down/ overexpressing SLC25A25-AS1 on viability, apoptosis, migration and invasion ability of isorhamnetin-treated cells were detected. After verifying the targeting relationships between microRNA-212-3p (miR-212-3p) and SLC25A25-AS1, as well as phosphatase and tensin homologue deleted on chromosome 10 (PTEN), the effects of knocking down/overexpressing SLC25A25-AS1 on the expression of miR-212-3p, PTEN mRNA, and PTEN protein in isorhamnetin-treated cells were investigated. RESULTS Compared with the model control group, tumor volume and mass of nude mice in the isorhamnetin low-dose and high-dose groups were reduced significantly, and the isorhamnetin high-dose group was significantly lower than the isorhamnetin low-dose group (P<0.05). miR-212-3p had targeting relationships with SLC25A25-AS1 and PTEN. Compared with the control group, the cell viability (intervened for 24, 48 h), migration number, invasion number and miR-212-3p expression of cells in the isorhamnetin group, isorhamnetin+knocking down negative control group and isorhamnetin+overexpressing negative control group were significantly reduced or decreased or down-regulated, while the apoptosis rate, mRNA and protein expressions of PTEN were significantly increased or up-regulated (P<0.05). Compared with isorhamnetin group and isorhamnetin+knocking down negative control group, the cell viability, migration number, invasion number and miR-212-3p expression of cells in the isorhamnetin+knocking down SLC25A25-AS1 group were significantly increased or up- regulated, while the apoptosis rate, mRNA and protein expressions of PTEN were significantly reduced or down-regulated (P< 0.05). Compared with isorhamnetin group and isorhamnetin+overexpressing negative control group, the cell viability, migration number, invasion number and miR-212-3p expression of cells in isorhamnetin+overexpressing SLC25A25-AS1 group were significantly reduced or decreased or down-regulated, while the apoptosis rate, PTEN mRNA and protein expressions were significantly increased or up-regulated (P<0.05). CONCLUSIONS Isorhamnetin may inhibit the development of gastric cancer by up-regulating the expression of SLC25A25-AS1, down-regulating miR-212-3p, and up-regulating the expression of PTEN, which is a downstream target of miR-212-3p.
2.Effects of Modified Guomin Decoction (加味过敏煎) on Traditional Chinese Medicine Syndromes and Quality of Life in Patients with Mild to Moderate Atopic Dermatitis of Heart Fire and Spleen Deficiency Pattern:A Randomized,Double-Blind,Placebo-Controlled Trial
Jing NIE ; Rui PANG ; Lingjiao QIAN ; Hua SU ; Yuanwen LI ; Xinyuan WANG ; Jingxiao WANG ; Yi YANG ; Yunong WANG ; Yue LI ; Panpan ZHANG
Journal of Traditional Chinese Medicine 2025;66(10):1031-1037
ObjectiveTo observe the clinical efficacy and safety of Modified Guomin Decoction (加味过敏煎, MGD) in patients with mild to moderate atopic dermatitis (AD) of the traditional Chinese medicine (TCM) pattern of heart fire and spleen deficiency, and to explore its possible mechanisms. MethodsIn this randomized, double-blind, placebo-controlled study, 72 patients with mild to moderate AD and the TCM pattern of heart fire and spleen deficiency were randomly divided into a treatment group and a control group, with 36 cases in each group. The treatment group received oral MGD granules combined with topical vitamin E emulsion, while the control group received oral placebo granules combined with topical vitamin E treatment. Both groups were treated twice daily for 4 weeks. Clinical efficacy, TCM syndrome scores, Visual Analogue Scale (VAS) for pruritus, Dermatology Life Quality Index (DLQI) scores, Scoring Atopic Dermatitis (SCORAD) and serum biomarkers, including interleukin-33 (IL-33), interleukin-1β (IL-1β), immunoglobulin E (IgE), and tumor necrosis factor-α (TNF-α) were compared before and after treatment. Safety indexes was also assessed. ResultsThe total clinical effective rates were 77.78% (28/36) in the treatment group and 38.89% (14/36) in the control group, with cure rates of 19.44% (7/36) and 2.78% (1/36), respectively. The treatment group showed significantly better clinical outcomes compared to the control group (P<0.05). The treatment group exhibited significant reductions in total TCM syndrome scores, including erythema, edema, papules, scaling, lichenification, pruritus, irritability, insomnia, abdominal distension, and fatigue scores, as well as reductions in VAS, DLQI, SCORAD, and serum IgE and IL-33 levels (P<0.05 or P<0.01). Compared to the control group, the treatment group had significantly better improvements in all indicators except for insomnia (P<0.05). No adverse events occurred in either group. ConclusionMGD is effective and safe in treating mild to moderate AD patients with heart fire and spleen deficiency pattern. It significantly alleviates pruritus, improves TCM syndromes and quality of life, and enhances clinical efficacy, possibly through modulation of immune responses.
3.Analysis of plasma metabonomic characteristics of type 2 diabetes mellitus patients with turbid toxin accumulation syndrome
Ziqi ZHAO ; Pai PANG ; Yue REN ; Bin WANG ; Yuntao MA ; Qianjing YANG ; Shentao WU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(1):34-42
Objective:
To explore the plasma metabonomic characteristics of patients with type 2 diabetes mellitus and turbid toxin accumulation syndrome.
Methods:
One hundred and three patients with type 2 diabetes mellitus and turbid toxin accumulation syndrome were enrolled from November 2023 to February 2024 in the First Teaching Hospital of Tianjin University of Traditional Chinese Medicine and 54 healthy individuals were recruited. The general data of the two groups were analyzed, and the plasma metabolite content was detected using ultra-high performance liquid chromatography-Orbitrap mass spectrometry. Construct an orthogonal partial least squares discriminant analysis model to screen metabolites with significant intergroup changes. The variable importance in projection≥ 1, |log2FC|>1, and P<0.05 were used as the criteria for the screening of differential metabolites. Annotate differential metabolites using internal databases and the human metabolome database, and perform pathway analysis using MetaboAnalyst website.
Results:
There was no statistically significant difference in gender and age between the two groups.Seventeen potential differential metabolites were identified. The D-4′-phosphopantothenate, 2, 6-dichloroindophenol, 4-methylphenol, hypoxanthine, 11, 12-epoxyeicosatrienoic acids, oleamide, 3-phenyllactic acid contents were higher in patients with type 2 diabetes mellitus and turbid toxin accumulation syndrome than in healthy individuals(P<0.05); 3-anisic acid, 3-iodo-octadecanoic acid, mebendazole, β-alanine, citric acid, trans-aconitic acid, geranyl diphosphate, lysophosphatidylcholine(18∶2), phosphatidylethanolamine(18∶1), and caprolactam contents were lower in patients with type 2 diabetes mellitus and turbid toxin accumulation syndrome than in healthy individuals(P<0.05). Ten metabolic pathways were identified, including the key metabolic pantothenate and coenzyme A biosynthesis pathways.
Conclusion
Metabolic differences were observed between patients with type 2 diabetes mellitus and turbid toxin accumulation syndrome and healthy individuals, and the underlying mechanism may involve the pantothenate and coenzyme A biosynthesis pathways, jointly mediated by D-4′-phosphopantothenate and β-alanine.
4.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
5.Application of Gas Chromatography Ion Mobility Spectrometry Technology Combined with Chemometric Methods in Identification of Foeniculi Fructus from Haiyuan Region
Xiurong TIAN ; Hao WANG ; Kejing PANG ; Penglong YU ; Xia LIU ; Mengyue SHEN ; Xianglin JIANG ; Yonghua LI ; Zhihong LI ; Hongqiong DING ; Qin YANG ; Xingying LI ; Qian XIONG ; Guochao WAN ; Yuexiang MA ; Zhenping LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):184-192
ObjectiveTo establish a geographical origin identification model for Foeniculi Fructus from Haiyuan, providing a new technical reference for the protection of Haiyuan's geo-authentic medicinal materials and its designation as a national geographical indication agricultural product. MethodsSamples of Foeniculi Fructus were collected from eight producing areas, including Minqin (Gansu), Bozhou (Anhui), Qingdao (Shandong), Dezhou (Shandong), Urumqi (Xinjiang), Nujiang (Yunnan), Gutuo (Inner Mongolia), and Haiyuan (Ningxia). Gas chromatography-ion mobility spectrometry (GC-IMS) was used to detect the volatile organic compounds (VOCs) in samples from these geographic origins. VOCs were qualitatively analyzed through dual matching with the National Institute of Standards and Technology (NIST) mass spectral database and the IMS drift time database. Using the Reporter module and Gallery Plot visualization tools within the LAV analytical platform, VOC fingerprint profiles characterizing geographic origins were constructed. A non-targeted analytical strategy was adopted, and 97 VOCs detected via GC-IMS were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) based on their differential distribution patterns to construct an origin identification model for Foeniculi Fructus from Haiyuan region. Key discriminative markers were screened using variable importance in projection (VIP) values greater than 1. ResultsA total of 97 VOCs were identified, including alcohols, aldehydes, ketones, esters, organic acids, terpenoids, ethers, alkenes, and benzenes. The PLS-DA model, based on VOCs data obtained by GC-IMS, effectively distinguished Foeniculi Fructus in Haiyuan region from those of other origins. During cross-validation, the model achieved a prediction parameter (Q2) of 0.976 and a goodness-of-fit parameter (R2) of 0.936, with no overfitting observed in permutation testing. Twelve key flavor markers with VIP > 1 were identified as characteristic indicators of Haiyuan origin. ConclusionA stable and highly predictive origin identification model for Foeniculi Fructus from Haiyuan was successfully established using GC-IMS technology, PLS-DA, and VIP-based marker screening. This model provides a novel technical strategy for accurately distinguishing Foeniculi Fructus in Haiyuan region from other regional varieties and offers new technical support for its protection as a geo-authentic medicinal material and a nationally designated geographical indication agricultural product in China.
6.Mitral valve re-repair with leaflet augmentation for mitral regurgitation in children: A retrospective study in a single center
Fengqun MAO ; Kai MA ; Kunjing PANG ; Ye LIN ; Benqing ZHANG ; Lu RUI ; Guanxi WANG ; Yang YANG ; Jianhui YUAN ; Qiyu HE ; Zheng DOU ; Shoujun LI
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(07):958-962
Objective To investigate the efficacy of leaflet augmentation technique to repair the recurrent mitral valve (MV) regurgitation after mitral repair in children. Methods A retrospective analysis was conducted on the clinical data of children who underwent redo MV repair for recurrent regurgitation after initial MV repair, using a leaflet augmentation technique combined with a standardized repair strategy at Fuwai Hospital, Chinese Academy of Medical Sciences, from 2018 to 2022. The pathological features of the MV, key intraoperative procedures, and short- to mid-term follow-up outcomes were analyzed. Results A total of 24 patients (12 male, 12 female) were included, with a median age of 37.6 (range, 16.5–120.0) months. The mean interval from the initial surgery was (24.9±17.0) months. All children had severe mitral regurgitation preoperatively. The cardiopulmonary bypass time was (150.1±49.5) min, and the aortic cross-clamp time was (94.0±24.2) min. There were no early postoperative deaths. During a mean follow-up of (20.3±9.1) months, 3 (12.5%) patients developed moderate or severe mitral regurgitation (2 severe, 1 moderate). One (4.2%) patient died during follow-up, and one (4.2%) patient underwent a second MV reoperation. The left ventricular end-diastolic diameter was significantly reduced postoperatively compared to preoperatively [ (43.5±8.6) mm vs. (35.8±7.8)mm, P<0.001]. Conclusion The leaflet augmentation technique combined with a standardized repair strategy can achieve satisfactory short- to mid-term outcomes for the redo mitral repair after previous MV repair. It can be considered a safe and feasible technical option for cases with complex valvular lesions and severe pathological changes.
7.Analysis of knowledge and related factors regarding hepatitis C prevention and treatment among female sex workers and men who have sex with men in the Xizang Autonomous Region.
Dorji WANGMO ; X Y ZHAO ; J SUN ; J PENG ; S R LI ; N PANG ; X D WU ; H Q GONG ; Y LI ; Y YANG
Chinese Journal of Epidemiology 2025;46(8):1417-1421
Objective: To investigate the knowledge of hepatitis C prevention and treatment and related factors among two groups of female sex workers (FSW) and men who have sex with men (MSM) in the Xizang Autonomous Region (Xizang) to provide a basis for the subsequent development of Hepatitis C publicity and education strategies. Methods: From August to September 2021, a special survey was conducted among 1 244 FSW and 234 MSM in 5 districts (counties) of 4 regions in Xizang. A one-on-one face-to-face questionnaire survey was adopted, and the χ² test and logistic regression were used to analyze the related factors of awareness of hepatitis C prevention and treatment among FSW and MSM. Results: The awareness rates of hepatitis C prevention and treatment knowledge among FSW and MSM were 35.0% (436/1 244) and 11.1% (26/234), respectively. Multivariate logistic regression analysis revealed that the positive related factors of FSW' awareness of hepatitis C prevention and treatment knowledge among those who had high school or technical secondary school education (aOR=4.72, 95%CI: 3.30-6.74) and college education or above (aOR=2.24, 95%CI: 1.58-3.18), those who experienced self-perceived risk of HCV infection (aOR=1.87, 95%CI: 1.43-2.45), negative related factors included married or cohabiting (aOR=0.58, 95%CI: 0.35-0.95), divorce or windowless (aOR=0.44, 95%CI: 0.27-0.72), no condom was used in the most recent commercial sexual activity (aOR=0.54, 95%CI: 0.43-0.69). The positive related factors of MSM's awareness of hepatitis C prevention and treatment knowledge were over 40 years old (aOR=8.65, 95%CI: 3.19-23.42) and having a self-perceived risk of HCV infection (aOR=6.25, 95%CI: 2.50-15.61). Conclusions: The awareness rate of hepatitis C prevention and treatment among FSW and MSM was relatively low in Xizang in 2021 and urgently needs to be improved. It is necessary to formulate targeted publicity strategies based on the characteristics of these two groups of people, increase publicity efforts, and expand the coverage of knowledge publicity to popularize key points about the clinical manifestations, treatment options, and transmission routes of hepatitis C, and carry out necessary warnings and education.
Humans
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Male
;
Hepatitis C/therapy*
;
Health Knowledge, Attitudes, Practice
;
Surveys and Questionnaires
;
Sex Workers/psychology*
;
Homosexuality, Male
;
Female
;
Adult
;
China
;
Young Adult
;
Middle Aged
;
Logistic Models
8.Role of lifestyle factors on the development and long-term prognosis of pneumonia and cardiovascular disease in the Chinese population.
Yizhen HU ; Qiufen SUN ; Yuting HAN ; Canqing YU ; Yu GUO ; Dianjianyi SUN ; Yuanjie PANG ; Pei PEI ; Ling YANG ; Yiping CHEN ; Huaidong DU ; Mengwei WANG ; Rebecca STEVENS ; Junshi CHEN ; Zhengming CHEN ; Liming LI ; Jun LV
Chinese Medical Journal 2025;138(12):1456-1464
BACKGROUND:
Whether adherence to a healthy lifestyle is associated with a lower risk of developing pneumonia and a better long-term prognosis remains unclear. This study aimed to investigate associations of individual and combined lifestyle factors (LFs) with the incidence risk and long-term prognosis of pneumonia hospitalization.
METHODS:
Using data from the China Kadoorie Biobank study, we used the multistate models to investigate the role of five high-risk LFs, including smoking, excessive alcohol drinking, unhealthy dietary habits, physical inactivity, and unhealthy body shape, alone or in combination in the transitions from a generally healthy state at baseline to pneumonia hospitalization or cardiovascular disease (CVD, regarded as a reference outcome), and subsequently to mortality.
RESULTS:
Most of the five high-risk LFs were associated with increased risks of transitions from baseline to pneumonia and from pneumonia to death, but with different risk estimates. The greater the number of high-risk LFs, the higher the risk of developing pneumonia and long-term mortality risk after pneumonia, with the strength of associations comparable to that of LFs and CVD. Compared to participants with 0-1 high-risk LF, the adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for transitions from baseline to pneumonia and from pneumonia to death in those with five high-risk LFs were 1.43 (1.28-1.60) and 1.98 (1.61-2.42), respectively. Correspondingly, the respective HRs (95% CIs) for transitions from baseline to CVD and from CVD to death were 2.00 (1.89-2.11) and 1.44 (1.30-1.59), respectively. The risk estimates changed slightly when further adjusting for the presence of major chronic diseases.
CONCLUSION
In this Chinese population, unhealthy LFs were associated with an increased incidence and long-term mortality risk of pneumonia.
Adult
;
Aged
;
Female
;
Humans
;
Male
;
Middle Aged
;
Cardiovascular Diseases/etiology*
;
China/epidemiology*
;
Life Style
;
Pneumonia/etiology*
;
Prognosis
;
Risk Factors
;
Smoking
9.Percutaneous coronary intervention vs . medical therapy in patients on dialysis with coronary artery disease in China.
Enmin XIE ; Yaxin WU ; Zixiang YE ; Yong HE ; Hesong ZENG ; Jianfang LUO ; Mulei CHEN ; Wenyue PANG ; Yanmin XU ; Chuanyu GAO ; Xiaogang GUO ; Lin CAI ; Qingwei JI ; Yining YANG ; Di WU ; Yiqiang YUAN ; Jing WAN ; Yuliang MA ; Jun ZHANG ; Zhimin DU ; Qing YANG ; Jinsong CHENG ; Chunhua DING ; Xiang MA ; Chunlin YIN ; Zeyuan FAN ; Qiang TANG ; Yue LI ; Lihua SUN ; Chengzhi LU ; Jufang CHI ; Zhuhua YAO ; Yanxiang GAO ; Changan YU ; Jingyi REN ; Jingang ZHENG
Chinese Medical Journal 2025;138(3):301-310
BACKGROUND:
The available evidence regarding the benefits of percutaneous coronary intervention (PCI) on patients receiving dialysis with coronary artery disease (CAD) is limited and inconsistent. This study aimed to evaluate the association between PCI and clinical outcomes as compared with medical therapy alone in patients undergoing dialysis with CAD in China.
METHODS:
This multicenter, retrospective study was conducted in 30 tertiary medical centers across 12 provinces in China from January 2015 to June 2021 to include patients on dialysis with CAD. The primary outcome was major adverse cardiovascular events (MACE), defined as a composite of cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke. Secondary outcomes included all-cause death, the individual components of MACE, and Bleeding Academic Research Consortium criteria types 2, 3, or 5 bleeding. Multivariable Cox proportional hazard models were used to assess the association between PCI and outcomes. Inverse probability of treatment weighting (IPTW) and propensity score matching (PSM) were performed to account for potential between-group differences.
RESULTS:
Of the 1146 patients on dialysis with significant CAD, 821 (71.6%) underwent PCI. After a median follow-up of 23.0 months, PCI was associated with a 43.0% significantly lower risk for MACE (33.9% [ n = 278] vs . 43.7% [ n = 142]; adjusted hazards ratio 0.57, 95% confidence interval 0.45-0.71), along with a slightly increased risk for bleeding outcomes that did not reach statistical significance (11.1% vs . 8.3%; adjusted hazards ratio 1.31, 95% confidence interval, 0.82-2.11). Furthermore, PCI was associated with a significant reduction in all-cause and cardiovascular mortalities. Subgroup analysis did not modify the association of PCI with patient outcomes. These primary findings were consistent across IPTW, PSM, and competing risk analyses.
CONCLUSION
This study indicated that PCI in patients on dialysis with CAD was significantly associated with lower MACE and mortality when comparing with those with medical therapy alone, albeit with a slightly increased risk for bleeding events that did not reach statistical significance.
Humans
;
Percutaneous Coronary Intervention/methods*
;
Male
;
Female
;
Coronary Artery Disease/drug therapy*
;
Retrospective Studies
;
Renal Dialysis/methods*
;
Middle Aged
;
Aged
;
China
;
Proportional Hazards Models
;
Treatment Outcome
10.ResNet-Vision Transformer based MRI-endoscopy fusion model for predicting treatment response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer: A multicenter study.
Junhao ZHANG ; Ruiqing LIU ; Di HAO ; Guangye TIAN ; Shiwei ZHANG ; Sen ZHANG ; Yitong ZANG ; Kai PANG ; Xuhua HU ; Keyu REN ; Mingjuan CUI ; Shuhao LIU ; Jinhui WU ; Quan WANG ; Bo FENG ; Weidong TONG ; Yingchi YANG ; Guiying WANG ; Yun LU
Chinese Medical Journal 2025;138(21):2793-2803
BACKGROUND:
Neoadjuvant chemoradiotherapy followed by radical surgery has been a common practice for patients with locally advanced rectal cancer, but the response rate varies among patients. This study aimed to develop a ResNet-Vision Transformer based magnetic resonance imaging (MRI)-endoscopy fusion model to precisely predict treatment response and provide personalized treatment.
METHODS:
In this multicenter study, 366 eligible patients who had undergone neoadjuvant chemoradiotherapy followed by radical surgery at eight Chinese tertiary hospitals between January 2017 and June 2024 were recruited, with 2928 pretreatment colonic endoscopic images and 366 pelvic MRI images. An MRI-endoscopy fusion model was constructed based on the ResNet backbone and Transformer network using pretreatment MRI and endoscopic images. Treatment response was defined as good response or non-good response based on the tumor regression grade. The Delong test and the Hanley-McNeil test were utilized to compare prediction performance among different models and different subgroups, respectively. The predictive performance of the MRI-endoscopy fusion model was comprehensively validated in the test sets and was further compared to that of the single-modal MRI model and single-modal endoscopy model.
RESULTS:
The MRI-endoscopy fusion model demonstrated favorable prediction performance. In the internal validation set, the area under the curve (AUC) and accuracy were 0.852 (95% confidence interval [CI]: 0.744-0.940) and 0.737 (95% CI: 0.712-0.844), respectively. Moreover, the AUC and accuracy reached 0.769 (95% CI: 0.678-0.861) and 0.729 (95% CI: 0.628-0.821), respectively, in the external test set. In addition, the MRI-endoscopy fusion model outperformed the single-modal MRI model (AUC: 0.692 [95% CI: 0.609-0.783], accuracy: 0.659 [95% CI: 0.565-0.775]) and the single-modal endoscopy model (AUC: 0.720 [95% CI: 0.617-0.823], accuracy: 0.713 [95% CI: 0.612-0.809]) in the external test set.
CONCLUSION
The MRI-endoscopy fusion model based on ResNet-Vision Transformer achieved favorable performance in predicting treatment response to neoadjuvant chemoradiotherapy and holds tremendous potential for enabling personalized treatment regimens for locally advanced rectal cancer patients.
Humans
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Rectal Neoplasms/diagnostic imaging*
;
Magnetic Resonance Imaging/methods*
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Male
;
Female
;
Middle Aged
;
Neoadjuvant Therapy/methods*
;
Aged
;
Adult
;
Chemoradiotherapy/methods*
;
Endoscopy/methods*
;
Treatment Outcome


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