1.PRMT1-mediated asymmetric dimethylation of arginine residue 602 in DDX1 promotes cholangiocarcinoma progression
Wenzheng LIU ; Yangwei LIAO ; Yiyang KUAI ; Xin GAO ; Xingmin YAN ; Jingjing LI ; Junsheng CHEN ; Jukun SU ; Jingcong ZHOU ; Yizhu KONG ; Siqin HUANG ; Zhiwei ZHANG ; Feng PENG ; Bing WANG ; Yongjun CHEN
Clinical and Molecular Hepatology 2026;32(2):843-865
Background/Aims:
Cholangiocarcinoma (CCA) is a primary malignant neoplasm with an extremely poor prognosis. While combined chemoradiotherapy has been demonstrated to delay CCA progression to a certain extent, the absence of specific molecular biomarkers or targets significantly hinders the diagnosis and treatment of CCA.
Methods:
Through cross-analysis of proteomics and ADMA modificationomics, we identified DDX1 overexpressed in CCA with elevated R602-ADMA modifications. HPLC-MS/MS identified PRMT1 as the methyltransferase and USP10 as the deubiquitinating enzyme for DDX1. Immunofluorescence and nuclear-cytoplasmic partitioning experiments confirmed DDX1’s nuclear localization. GO and KEGG analyses clarify the biological functions of DDX1 in response to hypoxia. RNA-seq transcriptomics analyzed key pathways influenced by DDX1. A hydrodynamic in situ CCA mouse model was established to validate the chemopreventive effects of the PRMT1-specific inhibitor GSK715 on CCA development.
Results:
DDX1 promotes CCA progression both in vivo and in vitro and can be inhibited by GSK715. Mechanistically, PRMT1 mediates ADMA modification at position R602 of DDX1. This modification promotes DDX1 nuclear localization by recruiting USP10 to deubiquitinate DDX1, while simultaneously inhibiting PRMT1 degradation. DDX1 promotes the transcription of PRMT1 and USP10 by binding to the mRNA 3’UTR region, establishing a positive feedback regulatory pathway. This mechanism promotes the occurrence and development of CCA and can serve as a target for the inhibitor GSK715 to suppress CCA progression.
Conclusions
Our study identified DDX1-R602-ADMA modification as a novel ADMA modification in CCA. It further confirmed its pivotal role in CCA progression. Targeting the USP10-PRMT1-DDX1 axis may represent a significant therapeutic approach for CCA.
2.Risk factors for postoperative recurrence and metastasis and the impact of surgical approaches on the prognosis of T1 stage Ⅲ/Ⅳ clear cell renal cell carcinoma
Jianbo JI ; Haonan CHEN ; Tiantian YUAN ; Zhaokui QU ; Guoxin SONG ; Meiling BAO ; Xiaodong LIANG ; Bo JIANG ; Yiyang WANG ; Hao JI ; Pengchao LI
Journal of Modern Urology 2026;31(1):12-16
Objective To investigate the risk factors for postoperative recurrence and metastasis in patients with T1 stageⅢ/Ⅳ clear cell renal cell carcinoma(ccRCC), and to analyze the influence of surgical methods on prognosis, so as to provide prognostic evaluation and treatment guidance for clinical practice. Methods A retrospective analysis was conducted on 398 patients diagnosed with T1 stage Ⅲ/Ⅳ ccRCC who underwent either partial nephrectomy(PN)or radical nephrectomy(RN)at Jiangsu Province Hospital during Jan. 2008 and Sep. 2022. The patients were divided into recurrence group(n=49)and non-recurrence group(n=349)according to whether the tumor recurred during the follow-up period. The general, clinical data and prognosis were compared between the two groups. Univariate and multivariate Cox regression analyses were used to explore the factors influencing disease-free survival(DFS)and overall survival(OS)after surgery. Subgroup analysis using Kaplan-Meier curves was performed for T1a and T1b patients. Results During the median follow-up of 67(42, 98)months, the recurrence group was characterized by older age, larger tumor diameter, higher proportion of T1b stage, and more complex tumor anatomy. Univariate and multivariate Cox regression analyses showed that age ≥55 years and R.E.N.A.L. score ≥7 were independent risk factors for poorer DFS and OS(P<0.05). Subgroup analysis revealed that PN or RN did not significantly affect DFS or OS in T1a patients and OS in T1b patients, while RN significantly improved DFS in T1b patients(P<0.05). Conclusion Age ≥55 years and R.E.N.A.L. score ≥7 are independent risk factors for poor DFS and OS in highgrade T1 ccRCC patients. For T1b patients, RN may improve DFS.
3.Study on the Quality of Gansu Chuanxiong Rhizoma Based on Intelligent Sensory Technology,HPLC and HS-SPME-GC-MS
Jialing ZHANG ; Yiyang CHEN ; Juanjuan LIU ; Liangcai WANG ; Xiaohui MA ; Ling JIN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):129-136
Objective To evaluate the quality of Xi xiong(Gansu Chuanxiong)based on the combination of intelligent sensory technology,HPLC and HS-SPME-GC-MS.Methods The chromaticity values of 10 batches of Gansu Chuanxiong Rhizoma samples were measured using a colorimeter and clustering analysis was performed;an electronic nose was used to measure the odor of Gansu Chuanxiong Rhizoma,and Loadings and PCA were conducted;According to the method under the Chuanxiaong Rhizoma section of the Chinese Pharmacopoeia,the moisture,ash content and extract were determined;HPLC was used to determine the contents of ferulic acid,chlorogenic acid and ligustrazine;the volatile components were analyzed by HS-SPME-GC-MS;the quality of Gansu Chuanxiong Rhizoma was evaluated by analyzing the correlation between chromaticity value,odor and active components.Results The total color value of Gansu Chuanxiong Rhizoma ranged from 31.210 1±1.193 7 to 43.976 3±0.721 4,at the Euclidean distance of 10,and the 10 batches of Gansu Chuanxiong Rhizoma could be clustered into four categories;Loadings and PCA showed that the higher contribution of sensors W2S,W5S,W2W,W1W and W1S to Gansu Chuanxiong Rhizoma samples,the variance contribution of the first and second principal components was 62.6%and 22.4%,respectively;water,ash and extract in 10 batches of Gansu Chuanxiong Rhizoma all met the standards of Chinese Pharmacopoeia;the HPLC determination results indicated that the content of ferulic acid in Gansu Chuanxiong Rhizoma was greater than 0.192 6%,ligustrazine content was between 0.001 2%and 0.006 1%,chlorogenic acid content was greater than 0.016 4%;HS-SPME-GC-MS results indicated 52 volatile components were identified in Gansu Chuanxiong Rhizoma samples,the olefin compounds were rich in species,phenyphthalide compounds had the highest relative content;the correlation analysis showed that the color values ΔL*,Δb* and ΔE showed a high degree of correlation with ferulic acid and ligusticum tecidate A.Conclusion This study clarifies the intrinsic quality of Gansu Chuanxiong Rhizoma and provides a theoretical basis for research on Gansu Chuanxiong Rhizoma.
4.Clinical application study of the "two-winged" retraction technique in laparoscopic complete mesocolic resection for the left hemicolon
Lifeng XIE ; Jing JIA ; Qiwei CHEN ; Jianbin HOU ; Yan LIU ; Yiyang WU ; Xinyu LI
Chinese Journal of Gastrointestinal Surgery 2025;28(4):412-416
Objective:To explore the application value of the "Dual-Wing" traction technique in the medial & head lateral laparoscopic left hemicolectomy with radical resection.Methods:The "Dual-Wing " traction technique is based on the theory of mesenteric anatomy. The assistant lifts the proper mesentery of the digestive tract to be resected or the adjacent mesenteric tissue connected to it,thereby elevating the target organ and its mesentery as a whole away from the mesenteric bed. By utilizing the tension transmission between the proper mesenteries of adjacent organs to create counter-tension,the surgeon's operative actions are always maintained along the line of maximum counter-tension.After incising the mesenteric fusion line,this technique assists the surgeon in entering the fusion plane. A descriptive case series study method was adopted to retrospectively analyze the clinical and pathological data of 37 colorectal cancer patients who underwent laparoscopic left hemicolectomy with the "Dual-Wing" traction technique via a medial and cephalad approach, performed by the Department of Gastrointestinal Surgery at Dongjie Campus of the First Hospital of Quanzhou, Fujian Medical University, from May 2023 to November 2023.Results:All patients successfully underwent laparoscopic left hemicolectomy via the medial & head lateral approach using the "Dual-Wing" traction technique.The surgery adhered to the principles of total mesocolic excision and safely mobilized the left colon and its mesentery from the correct anatomical plane. In the entire group of patients,there were 14 males and 23 females; the mean operative time was 94.1±18.3 minutes; the mean intraoperative blood loss was 9.8±5.4 ml; the mean number of lymph nodes dissected was 18.1±3.9; the mean number of positive lymph nodes was 1.4±1.6; the pathological specimen resection margin grading was Grade A in 29 cases, Grade B in 8 cases, and no Grade C cases; the tumor TNM staging was Stage I in 3 cases, Stage IIA in 7 cases, Stage IIB in 6 cases, Stage IIIA in 2 cases, Stage IIIB in 15 cases, and Stage IIIC in 4 cases; the mean time to first flatus postoperatively was 35.7±7.5 hours; the mean length of hospital stay was 9.1±1.7 days. There were no intraoperative injuries to the pancreas or spleen. Postoperative complications occurred in 3 cases. No anastomotic leakage was observed in the entire group, and there were no deaths following the surgery.Conclusion:The application of the "Dual-Wing" traction technique to establish a stable surgical scenario can significantly reduce the demands on the assistant. It is conducive to maintaining mesenteric tension and fully exposing the surgical field. It also allows for the rapid identification and maintenance of the correct anatomical plane. For colorectal cancer patients, the surgery is safe and feasible, with satisfactory short-term therapeutic effects.
5.The postictal electroencephalographic characteristics and prognosis of status epilepticus
Honghua CHEN ; Lingli JU ; Yanyan JI ; Yiyang XUE ; Lihong TAO
Chinese Journal of Behavioral Medicine and Brain Science 2025;34(11):990-996
Objective:To analyze postictal electroencephalographic(EEG) characteristics of patients with status epilepticus (SE) based on the score of grand total electroencephalography (GTE), and explore the relationship between electroencephalographic characteristics of SE and clinical prognosis.Methods:A total of 110 SE patients were enrolled in the Department of Neurology, the Affiliated Hospital of Yangzhou University from September 1, 2021 to September 1, 2023. EEG and GTE scores were performed in all patients after seizures (0-2 days after the cessation of SE). After one year of discharge, the medication and seizure status of patients were followed up by phone or outpatient visits. The seizure outcomes were recorded according to the international league against epilepsy (ILAE) seizure outcome classification, with favorable outcomes defined as good prognosis group ( n=54) and unfavorable outcomes defined as poor prognosis group ( n=56). SPSS 27.0 software was used for statistical analysis. Binary Logistic regression analysis was employed to screen impact variables of prognosis. The receiver operating characteristic(ROC) curve was plotted to determine the optimal cut-off point for predicting prognosis in epilepsy. Results:There were statistically significant differences in the total GTE score(2(1, 4), 8(5, 10); Z=-6.837, P<0.001), diffuse slow activity(0(0, 1), 2(0, 2); Z=-6.495, P<0.001), reactivity of the rhythmic background activity(0(0, 0), 0(0, 1); Z=-2.705, P=0.007), paroxysmal activity(0(0, 0), 1.5(0, 3.0); Z=-4.420, P<0.001), focal disturbances(0(0, 0), 0(0, 0); Z=-2.130, P=0.033), and sharp wave activity(0(0, 2), 2(2, 3); Z=-5.714, P<0.001)between the good prognosis group and poor prognosis group. The differences in EEG results among SE patients with different types of epileptic seizures were statistically significant in terms of frequency of rhythmic background activity, diffuse slow activity, reactivity of rhythmic background activity and total GTE score (all P<0.05). The differences in EEG results between SE patients with clear and unknown causes were statistically significant in terms of paroxysmal activity and focal disturbances(both P<0.05). The results of binary Logistic regression analysis showed that independent factors associated with the prognosis of SE included medication adherence ( B=-0.496, OR=0.609, 95% CI=0.395-0.940, P=0.025), diffuse slow activity( B=1.580, OR=4.854, 95% CI=1.586-14.855, P=0.006), sharp wave activity( B=0.824, OR=2.280, 95% CI=1.210-4.297, P=0.011), and total GTE score ( B=0.561, OR=1.753, 95% CI=1.360-2.259, P<0.001). In evaluating the prognosis of SE, the GTE score had a certain sensitivity (74.6%) and specificity (85.1%), with a optimal cut-off point of 6. Conclusions:The differences in EEG results among SE patients with different types of epileptic seizures were statistically significant in terms of frequency of rhythmic background activity, diffuse slow activity, reactivity of rhythmic background activity. The appearance of diffuse slow activity and sharp wave activity in the electroencephalogram of SE patients indicates poor prognosis, and the total GTE score≥6 may be a strong predictor of poor prognosis. However, good medication adherence is a protective factor for epilepsy recurrence.
6.The postictal electroencephalographic characteristics and prognosis of status epilepticus
Honghua CHEN ; Lingli JU ; Yanyan JI ; Yiyang XUE ; Lihong TAO
Chinese Journal of Behavioral Medicine and Brain Science 2025;34(11):990-996
Objective:To analyze postictal electroencephalographic(EEG) characteristics of patients with status epilepticus (SE) based on the score of grand total electroencephalography (GTE), and explore the relationship between electroencephalographic characteristics of SE and clinical prognosis.Methods:A total of 110 SE patients were enrolled in the Department of Neurology, the Affiliated Hospital of Yangzhou University from September 1, 2021 to September 1, 2023. EEG and GTE scores were performed in all patients after seizures (0-2 days after the cessation of SE). After one year of discharge, the medication and seizure status of patients were followed up by phone or outpatient visits. The seizure outcomes were recorded according to the international league against epilepsy (ILAE) seizure outcome classification, with favorable outcomes defined as good prognosis group ( n=54) and unfavorable outcomes defined as poor prognosis group ( n=56). SPSS 27.0 software was used for statistical analysis. Binary Logistic regression analysis was employed to screen impact variables of prognosis. The receiver operating characteristic(ROC) curve was plotted to determine the optimal cut-off point for predicting prognosis in epilepsy. Results:There were statistically significant differences in the total GTE score(2(1, 4), 8(5, 10); Z=-6.837, P<0.001), diffuse slow activity(0(0, 1), 2(0, 2); Z=-6.495, P<0.001), reactivity of the rhythmic background activity(0(0, 0), 0(0, 1); Z=-2.705, P=0.007), paroxysmal activity(0(0, 0), 1.5(0, 3.0); Z=-4.420, P<0.001), focal disturbances(0(0, 0), 0(0, 0); Z=-2.130, P=0.033), and sharp wave activity(0(0, 2), 2(2, 3); Z=-5.714, P<0.001)between the good prognosis group and poor prognosis group. The differences in EEG results among SE patients with different types of epileptic seizures were statistically significant in terms of frequency of rhythmic background activity, diffuse slow activity, reactivity of rhythmic background activity and total GTE score (all P<0.05). The differences in EEG results between SE patients with clear and unknown causes were statistically significant in terms of paroxysmal activity and focal disturbances(both P<0.05). The results of binary Logistic regression analysis showed that independent factors associated with the prognosis of SE included medication adherence ( B=-0.496, OR=0.609, 95% CI=0.395-0.940, P=0.025), diffuse slow activity( B=1.580, OR=4.854, 95% CI=1.586-14.855, P=0.006), sharp wave activity( B=0.824, OR=2.280, 95% CI=1.210-4.297, P=0.011), and total GTE score ( B=0.561, OR=1.753, 95% CI=1.360-2.259, P<0.001). In evaluating the prognosis of SE, the GTE score had a certain sensitivity (74.6%) and specificity (85.1%), with a optimal cut-off point of 6. Conclusions:The differences in EEG results among SE patients with different types of epileptic seizures were statistically significant in terms of frequency of rhythmic background activity, diffuse slow activity, reactivity of rhythmic background activity. The appearance of diffuse slow activity and sharp wave activity in the electroencephalogram of SE patients indicates poor prognosis, and the total GTE score≥6 may be a strong predictor of poor prognosis. However, good medication adherence is a protective factor for epilepsy recurrence.
7.Patent development trend analysis of orthokeratology lenses for assisted wearing based on patent metrics
Yuhan CHEN ; Zhenwei TAN ; Yiyang LI ; Deqin HUANG ; Caifang ZHANG ; Yiru HU ; Jinlong LIU
Chinese Journal of Modern Nursing 2025;31(14):1914-1919
Objective:To apply patent metrics to analyze the distribution, development trends, and characteristics of patents related to orthokeratology lenses for assisted wearing, providing a reference for the research and development of such patents.Methods:Patents related to orthokeratology lenses for assisted wearing were retrieved by computer from the China National Intellectual Property Administration database, incopat, Derwent Innovations Index, Free Patents Online, Organisation Africaine de la Propriété Intellectuelle, and IP Australia. The search timeframe was from the establishing of these databases until March 8, 2024. Patent metrics methods, word frequency analysis, and high-frequency word co-occurrence analysis were used for data analysis.Results:A total of 60 relevant patents were selected. The development of orthokeratology lens-assisted wearing patents began relatively late but has shown a strong growth trend, reaching a peak around 2015. Chinese patents accounted for the largest share (91.7%, 55/60) , with Zhejiang Province, Beijing City, Jiangsu Province, Guangdong Province, and Shanghai City having the highest number of patents. The majority of the applicants were enterprises. The research focus in this field is on mechanical assistance patents for lens wearing, with cutting-edge technologies focusing on monitoring the displacement of lenses relative to the pupil and providing timely feedback and guidance.Conclusions:This study, using patent metrics, word frequency analysis, and high-frequency word co-occurrence analysis, provides a reference for patent applications and product development in orthokeratology lens-assisted wearing in nursing.
8.Patent development trend analysis of orthokeratology lenses for assisted wearing based on patent metrics
Yuhan CHEN ; Zhenwei TAN ; Yiyang LI ; Deqin HUANG ; Caifang ZHANG ; Yiru HU ; Jinlong LIU
Chinese Journal of Modern Nursing 2025;31(14):1914-1919
Objective:To apply patent metrics to analyze the distribution, development trends, and characteristics of patents related to orthokeratology lenses for assisted wearing, providing a reference for the research and development of such patents.Methods:Patents related to orthokeratology lenses for assisted wearing were retrieved by computer from the China National Intellectual Property Administration database, incopat, Derwent Innovations Index, Free Patents Online, Organisation Africaine de la Propriété Intellectuelle, and IP Australia. The search timeframe was from the establishing of these databases until March 8, 2024. Patent metrics methods, word frequency analysis, and high-frequency word co-occurrence analysis were used for data analysis.Results:A total of 60 relevant patents were selected. The development of orthokeratology lens-assisted wearing patents began relatively late but has shown a strong growth trend, reaching a peak around 2015. Chinese patents accounted for the largest share (91.7%, 55/60) , with Zhejiang Province, Beijing City, Jiangsu Province, Guangdong Province, and Shanghai City having the highest number of patents. The majority of the applicants were enterprises. The research focus in this field is on mechanical assistance patents for lens wearing, with cutting-edge technologies focusing on monitoring the displacement of lenses relative to the pupil and providing timely feedback and guidance.Conclusions:This study, using patent metrics, word frequency analysis, and high-frequency word co-occurrence analysis, provides a reference for patent applications and product development in orthokeratology lens-assisted wearing in nursing.
9.Clinical application study of the "two-winged" retraction technique in laparoscopic complete mesocolic resection for the left hemicolon
Lifeng XIE ; Jing JIA ; Qiwei CHEN ; Jianbin HOU ; Yan LIU ; Yiyang WU ; Xinyu LI
Chinese Journal of Gastrointestinal Surgery 2025;28(4):412-416
Objective:To explore the application value of the "Dual-Wing" traction technique in the medial & head lateral laparoscopic left hemicolectomy with radical resection.Methods:The "Dual-Wing " traction technique is based on the theory of mesenteric anatomy. The assistant lifts the proper mesentery of the digestive tract to be resected or the adjacent mesenteric tissue connected to it,thereby elevating the target organ and its mesentery as a whole away from the mesenteric bed. By utilizing the tension transmission between the proper mesenteries of adjacent organs to create counter-tension,the surgeon's operative actions are always maintained along the line of maximum counter-tension.After incising the mesenteric fusion line,this technique assists the surgeon in entering the fusion plane. A descriptive case series study method was adopted to retrospectively analyze the clinical and pathological data of 37 colorectal cancer patients who underwent laparoscopic left hemicolectomy with the "Dual-Wing" traction technique via a medial and cephalad approach, performed by the Department of Gastrointestinal Surgery at Dongjie Campus of the First Hospital of Quanzhou, Fujian Medical University, from May 2023 to November 2023.Results:All patients successfully underwent laparoscopic left hemicolectomy via the medial & head lateral approach using the "Dual-Wing" traction technique.The surgery adhered to the principles of total mesocolic excision and safely mobilized the left colon and its mesentery from the correct anatomical plane. In the entire group of patients,there were 14 males and 23 females; the mean operative time was 94.1±18.3 minutes; the mean intraoperative blood loss was 9.8±5.4 ml; the mean number of lymph nodes dissected was 18.1±3.9; the mean number of positive lymph nodes was 1.4±1.6; the pathological specimen resection margin grading was Grade A in 29 cases, Grade B in 8 cases, and no Grade C cases; the tumor TNM staging was Stage I in 3 cases, Stage IIA in 7 cases, Stage IIB in 6 cases, Stage IIIA in 2 cases, Stage IIIB in 15 cases, and Stage IIIC in 4 cases; the mean time to first flatus postoperatively was 35.7±7.5 hours; the mean length of hospital stay was 9.1±1.7 days. There were no intraoperative injuries to the pancreas or spleen. Postoperative complications occurred in 3 cases. No anastomotic leakage was observed in the entire group, and there were no deaths following the surgery.Conclusion:The application of the "Dual-Wing" traction technique to establish a stable surgical scenario can significantly reduce the demands on the assistant. It is conducive to maintaining mesenteric tension and fully exposing the surgical field. It also allows for the rapid identification and maintenance of the correct anatomical plane. For colorectal cancer patients, the surgery is safe and feasible, with satisfactory short-term therapeutic effects.
10.Potential utility of albumin-bilirubin and body mass index-based logistic model to predict survival outcome in non-small cell lung cancer with liver metastasis treated with immune checkpoint inhibitors.
Lianxi SONG ; Qinqin XU ; Ting ZHONG ; Wenhuan GUO ; Shaoding LIN ; Wenjuan JIANG ; Zhan WANG ; Li DENG ; Zhe HUANG ; Haoyue QIN ; Huan YAN ; Xing ZHANG ; Fan TONG ; Ruiguang ZHANG ; Zhaoyi LIU ; Lin ZHANG ; Xiaorong DONG ; Ting LI ; Chao FANG ; Xue CHEN ; Jun DENG ; Jing WANG ; Nong YANG ; Liang ZENG ; Yongchang ZHANG
Chinese Medical Journal 2025;138(4):478-480

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