1.Research on brain damage and therapeutic effects of comorbid auditory and visual hallucinations and cognitive decline in patients with first-episode schizophrenia based on brain magnetic resonance imaging
Chunhai HUANG ; Wenzhen TU ; Ce CHEN ; Lei MENG ; Lixue QIU ; Jianjing ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2025;32(9):1331-1336
Objective:To investigate brain damage and treatment efficacy in patients with first-episode schizophrenia with comorbid auditory and visual hallucinations and cognitive decline based on brain magnetic resonance imaging (MRI).Methods:This study adopted a retrospective cohort design. Eighty patients with first-episode schizophrenia who received treatment at Wenzhou Seventh People's Hospital from January to June 2024 were included in this study. The patients were divided into an observation group (40 cases of first-episode schizophrenia with comorbid auditory and visual hallucinations) and a control group (40 cases of first-episode schizophrenia without comorbid auditory and visual hallucinations) based on whether they had symptoms of comorbid auditory and visual hallucinations. Forty healthy individuals who concurrently underwent physical examinations were included in the normal group. All patients received standardized treatment. Cranial MRI data were collected from all subjects. Cranial MRI data, Positive and Negative Syndrome Scale (PANSS) score, Global Assessment of Functioning (GAF) score, and changes in cognitive function were compared among the three groups. Additionally, the changes in cranial MRI data, PANSS score, GAF score, and the score of MATRICS Consensus Cognitive Battery (MCCB) in the observation group were compared between before and after treatment.Results:The horizontal distance between the corpus callosum and the underside of the cingulate gyrus, the vertical distance between the corpus callosum and the underside of the cingulate gyrus, and PANSS and GAF scores in the observation group were all significantly higher than those in the normal and control groups (all P < 0.05). The scores on all MCCB scales in the observation group were significantly lower than those in the normal and control groups (all P < 0.05). After treatment, the left horizontal distance between the corpus callosum and the underside of the cingulate gyrus [(5.72 ± 0.71) mm] and the right horizontal distance [(5.13 ± 0.55) mm], as well as the left vertical distance [(6.37 ± 0.69) mm] and the right vertical distance [(5.61 ± 0.67) mm], were all significantly lower than the pre-treatment values [(6.98 ± 0.83) mm, (6.07 ± 0.49) mm, (7.54 ± 0.58) mm, and (6.52 ± 0.51) mm, t = 7.30, 8.07, 8.21, 6.84, all P < 0.05]. Post-treatment PANSS scores [(39.95 ± 6.65)] were significantly lower than pre-treatment scores [(97.47 ± 18.47)], while post-treatment GAF scores [(71.26 ± 8.87)] were significantly higher than pre-treatment scores [(34.68 ± 7.71), t = 18.53, 19.69, both P < 0.05]. Post-treatment scores for the MCCB [(8.57 ± 2.45), (2.25 ± 0.47), (25.16 ± 2.43), (24.10 ± 2.64), (17.08 ± 2.25), (20.43 ± 3.76), (2.07 ± 0.36), (22.16 ± 3.24), (57.81 ± 7.69), (0.28 ± 0.05)] were significantly higher than pre-treatment scores [(5.65 ± 1.37), (1.62 ± 0.34), (21.21 ± 2.27), (20.27 ± 1.78), (12.16 ± 2.08), (14.56 ± 2.34), (1.71 ± 0.25), (17.92 ± 1.64), (40.29 ± 6.56), (0.21 ± 0.03), t = 6.58, 6.87, 7.51, 7.61, 10.15, 8.38, 5.19, 7.38, 10.96, 7.59, all P < 0.05]. Conclusions:The comorbid auditory and visual hallucinations in patients with first-episode schizophrenia, based on brain MRI findings, are closely related to cognitive decline and brain damage. After treatment, both cognitive function and cranial damage in these patients have considerably improved, which is worthy of clinical consideration.
2.Analysis of Mechanical Damage in Aortic Media Induced by Stent-Graft
Wenzhen CHEN ; Baolei GUO ; Haofei LIU
Journal of Medical Biomechanics 2025;40(4):1020-1026
Objective To develop a quantitative method ology for assessing the aortic media damage induced by the stent-graft,and study the influence of various stent oversizing ratios(ORs)on damage of the aortic media.Methods Based on experimetal data from uniaxial tensile test on human aortic dissection,the material parameters of aortic wall's constitutive equation were determined,including damage parameters.A finite element model was constructed to simulate the deployment process of the stent-graft in blood vessel.Damage factor was determined to analyze the stress distribution and the result ant damage within aortic media at different ORs of the stent-graft.Results The distribution of damage factor and von Mises stress was basically consistent,with both peaking at the large curvature side near the aortic arch.Additionally,stress concentration was observed in distal anchoring region of the aortic wall.An increment in OR was correlated with a proportional increase in both peak values.At ORs of 10%,15%and 20%,the maimum von Mises stresses were 469,480 and 580 kPa,respectively,with increments of 2.3%and 20.8%.Correspondingly,the maximum damage factors were 0.01,0.011 and 0.014,with an elevation of 10%and 27.3%.Conclusions An increment in OR is associated with a pronounced increase in peak value of the damage factor and the rate of increase,indicating a more severe impact on the aortic media.The distribution of the damage factor aligns closely with that of the von Mises stress,with both exhibiting peak values at the large curvature side of aortic arch.This correlation underscores the damage factor's efficacy as a reliable indicator of the aortic media's integrity and can accurately reflect the degree of medial layer injury in the aortic wall,thereby providing a theoretical basis for the subsequent assessment of endovascular interventional treatment risks through damage factor analysis.
3.Augmentation of PRDX1-DOK3 interaction alleviates rheumatoid arthritis progression by suppressing plasma cell differentiation.
Wenzhen DANG ; Xiaomin WANG ; Huaying LI ; Yixuan XU ; Xinyu LI ; Siqi HUANG ; Hongru TAO ; Xiao LI ; Yulin YANG ; Lijiang XUAN ; Weilie XIAO ; Dean GUO ; Hao ZHANG ; Qiong WU ; Jie ZHENG ; Xiaoyan SHEN ; Kaixian CHEN ; Heng XU ; Yuanyuan ZHANG ; Cheng LUO
Acta Pharmaceutica Sinica B 2025;15(8):3997-4013
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by persistent inflammation and joint damage, accompanied by the accumulation of plasma cells, which contributes to its pathogenesis. Understanding the genetic alterations occurring during plasma cell differentiation in RA can deepen our comprehension of its pathogenesis and guide the development of targeted therapeutic interventions. Here, our study elucidates the intricate molecular mechanisms underlying plasma cell differentiation by demonstrating that PRDX1 interacts with DOK3 and modulates its degradation by the autophagy-lysosome pathway. This interaction results in the inhibition of plasma cell differentiation, thereby alleviating the progression of collagen-induced arthritis. Additionally, our investigation identifies Salvianolic acid B (SAB) as a potent small molecular glue-like compound that enhances the interaction between PRDX1 and DOK3, consequently impeding the progression of collagen-induced arthritis by inhibiting plasma cell differentiation. Collectively, these findings underscore the therapeutic potential of developing chemical stabilizers for the PRDX1-DOK3 complex in suppressing plasma cell differentiation for RA treatment and establish a theoretical basis for targeting PRDX1-protein interactions as specific therapeutic targets in various diseases.
4.Construction of a machine learning model based on the Ki67 positive index to predict the recurrence risk of hepatocellular carcinoma
Haoran LI ; Yan YU ; Fangying FAN ; Wenzhen DING ; Hui FENG ; Minghua YING ; Jiawei LI ; Qingqing SUN ; Lele BIAN ; Haokai XU ; Zhanyue CHEN ; Jie YU ; Ping LIANG
Chinese Journal of Hepatology 2025;33(9):898-909
Objective:To screen the optimal machine learning model for predicting the recurrence condition of hepatocellular carcinoma (HCC) at different time points post-surgery, based on the cutoff value of the Ki67 positive proliferation index condition calculated from recurrence-free survival and combined with various clinical features.Methods:retrospective study included initially treated patients with solitary HCC who underwent radical surgery at the Fifth Medical Center of the PLA General Hospital from January 2013 to March 2023. Data included general clinical data, preoperative laboratory parameters, and surgical pathology information about the subjects. The postoperative recurrence status was assessed by querying the medical record system or by telephone follow-up. The Ki67 positive index cutoff value was determined by the X-tile software based on the patient's recurrence-free survival status and time analysis. Survival rates were calculated using the Kaplan-Meier method, and survival curves were plotted. The study population was randomly divided into training and testing groups in a 7:3 ratio using a computer-generated random number method. The minimum redundancy maximum relevance (mRMR) method was used for feature variable selection. Predictive models for postoperative HCC recurrence conditions in patients with HCC were constructed using random forest, support vector machine, logistic regression, and gradient boosting decision tree machine learning algorithms. Inter-group comparisons for continuous data were performed using the t-test or Mann-Whitney U test. Inter-group comparisons of enumeration data were performed using the Pearson χ2 test, continuity-corrected χ2 test, or Fisher's exact test. Results:The cutoff values for the Ki67 positivity index were 0.3 and 0.5 in 510 cases, with a follow-up time ranging from 1.2 to 11.4 years (median: 6.2 years). The recurrence-free survival time was between 1 and 135 months (median: 32 months), with recurrence-free survival rates post-surgery at 1, 2, 3, and 5 years were 87.5%, 77.1%, 61.2%, and 54.5%, respectively. The top five variables predicted HCC recurrence and non-recurrence conditions following surgical follow-up at 6 months, 1 year, 2 years, and beyond 2 years, in accordance with information obtained by the mRMR screen out. The Ki67 positivity index screened a successfully constructed machine learning model to predict HCC recurrence and non-recurrence conditions following surgical follow-up at 6 months, 1 year, 2 years, and beyond 2 years. The machine learning model based on the gradient boosting decision tree algorithm had the best prediction performance among them (areas under the receiver operating characteristic curves for predicting HCC recurrence within six months in the training and validation sets were 0.996 and 0.946, and accuracies were 0.972 and 0.935, respectively).Conclusion:A machine learning model was successfully constructed using the Ki67 positivity index combined with four readily available clinical features to predict HCC recurrence. The machine learning model based on the gradient boosting decision tree algorithm demonstrated the best performance in terms of predicting HCC recurrence within six months after surgery.
5.Analysis of Mechanical Damage in Aortic Media Induced by Stent-Graft
Wenzhen CHEN ; Baolei GUO ; Haofei LIU
Journal of Medical Biomechanics 2025;40(4):1020-1026
Objective To develop a quantitative method ology for assessing the aortic media damage induced by the stent-graft,and study the influence of various stent oversizing ratios(ORs)on damage of the aortic media.Methods Based on experimetal data from uniaxial tensile test on human aortic dissection,the material parameters of aortic wall's constitutive equation were determined,including damage parameters.A finite element model was constructed to simulate the deployment process of the stent-graft in blood vessel.Damage factor was determined to analyze the stress distribution and the result ant damage within aortic media at different ORs of the stent-graft.Results The distribution of damage factor and von Mises stress was basically consistent,with both peaking at the large curvature side near the aortic arch.Additionally,stress concentration was observed in distal anchoring region of the aortic wall.An increment in OR was correlated with a proportional increase in both peak values.At ORs of 10%,15%and 20%,the maimum von Mises stresses were 469,480 and 580 kPa,respectively,with increments of 2.3%and 20.8%.Correspondingly,the maximum damage factors were 0.01,0.011 and 0.014,with an elevation of 10%and 27.3%.Conclusions An increment in OR is associated with a pronounced increase in peak value of the damage factor and the rate of increase,indicating a more severe impact on the aortic media.The distribution of the damage factor aligns closely with that of the von Mises stress,with both exhibiting peak values at the large curvature side of aortic arch.This correlation underscores the damage factor's efficacy as a reliable indicator of the aortic media's integrity and can accurately reflect the degree of medial layer injury in the aortic wall,thereby providing a theoretical basis for the subsequent assessment of endovascular interventional treatment risks through damage factor analysis.
6.Research on brain damage and therapeutic effects of comorbid auditory and visual hallucinations and cognitive decline in patients with first-episode schizophrenia based on brain magnetic resonance imaging
Chunhai HUANG ; Wenzhen TU ; Ce CHEN ; Lei MENG ; Lixue QIU ; Jianjing ZHANG
Chinese Journal of Primary Medicine and Pharmacy 2025;32(9):1331-1336
Objective:To investigate brain damage and treatment efficacy in patients with first-episode schizophrenia with comorbid auditory and visual hallucinations and cognitive decline based on brain magnetic resonance imaging (MRI).Methods:This study adopted a retrospective cohort design. Eighty patients with first-episode schizophrenia who received treatment at Wenzhou Seventh People's Hospital from January to June 2024 were included in this study. The patients were divided into an observation group (40 cases of first-episode schizophrenia with comorbid auditory and visual hallucinations) and a control group (40 cases of first-episode schizophrenia without comorbid auditory and visual hallucinations) based on whether they had symptoms of comorbid auditory and visual hallucinations. Forty healthy individuals who concurrently underwent physical examinations were included in the normal group. All patients received standardized treatment. Cranial MRI data were collected from all subjects. Cranial MRI data, Positive and Negative Syndrome Scale (PANSS) score, Global Assessment of Functioning (GAF) score, and changes in cognitive function were compared among the three groups. Additionally, the changes in cranial MRI data, PANSS score, GAF score, and the score of MATRICS Consensus Cognitive Battery (MCCB) in the observation group were compared between before and after treatment.Results:The horizontal distance between the corpus callosum and the underside of the cingulate gyrus, the vertical distance between the corpus callosum and the underside of the cingulate gyrus, and PANSS and GAF scores in the observation group were all significantly higher than those in the normal and control groups (all P < 0.05). The scores on all MCCB scales in the observation group were significantly lower than those in the normal and control groups (all P < 0.05). After treatment, the left horizontal distance between the corpus callosum and the underside of the cingulate gyrus [(5.72 ± 0.71) mm] and the right horizontal distance [(5.13 ± 0.55) mm], as well as the left vertical distance [(6.37 ± 0.69) mm] and the right vertical distance [(5.61 ± 0.67) mm], were all significantly lower than the pre-treatment values [(6.98 ± 0.83) mm, (6.07 ± 0.49) mm, (7.54 ± 0.58) mm, and (6.52 ± 0.51) mm, t = 7.30, 8.07, 8.21, 6.84, all P < 0.05]. Post-treatment PANSS scores [(39.95 ± 6.65)] were significantly lower than pre-treatment scores [(97.47 ± 18.47)], while post-treatment GAF scores [(71.26 ± 8.87)] were significantly higher than pre-treatment scores [(34.68 ± 7.71), t = 18.53, 19.69, both P < 0.05]. Post-treatment scores for the MCCB [(8.57 ± 2.45), (2.25 ± 0.47), (25.16 ± 2.43), (24.10 ± 2.64), (17.08 ± 2.25), (20.43 ± 3.76), (2.07 ± 0.36), (22.16 ± 3.24), (57.81 ± 7.69), (0.28 ± 0.05)] were significantly higher than pre-treatment scores [(5.65 ± 1.37), (1.62 ± 0.34), (21.21 ± 2.27), (20.27 ± 1.78), (12.16 ± 2.08), (14.56 ± 2.34), (1.71 ± 0.25), (17.92 ± 1.64), (40.29 ± 6.56), (0.21 ± 0.03), t = 6.58, 6.87, 7.51, 7.61, 10.15, 8.38, 5.19, 7.38, 10.96, 7.59, all P < 0.05]. Conclusions:The comorbid auditory and visual hallucinations in patients with first-episode schizophrenia, based on brain MRI findings, are closely related to cognitive decline and brain damage. After treatment, both cognitive function and cranial damage in these patients have considerably improved, which is worthy of clinical consideration.
7.Construction of a machine learning model based on the Ki67 positive index to predict the recurrence risk of hepatocellular carcinoma
Haoran LI ; Yan YU ; Fangying FAN ; Wenzhen DING ; Hui FENG ; Minghua YING ; Jiawei LI ; Qingqing SUN ; Lele BIAN ; Haokai XU ; Zhanyue CHEN ; Jie YU ; Ping LIANG
Chinese Journal of Hepatology 2025;33(9):898-909
Objective:To screen the optimal machine learning model for predicting the recurrence condition of hepatocellular carcinoma (HCC) at different time points post-surgery, based on the cutoff value of the Ki67 positive proliferation index condition calculated from recurrence-free survival and combined with various clinical features.Methods:retrospective study included initially treated patients with solitary HCC who underwent radical surgery at the Fifth Medical Center of the PLA General Hospital from January 2013 to March 2023. Data included general clinical data, preoperative laboratory parameters, and surgical pathology information about the subjects. The postoperative recurrence status was assessed by querying the medical record system or by telephone follow-up. The Ki67 positive index cutoff value was determined by the X-tile software based on the patient's recurrence-free survival status and time analysis. Survival rates were calculated using the Kaplan-Meier method, and survival curves were plotted. The study population was randomly divided into training and testing groups in a 7:3 ratio using a computer-generated random number method. The minimum redundancy maximum relevance (mRMR) method was used for feature variable selection. Predictive models for postoperative HCC recurrence conditions in patients with HCC were constructed using random forest, support vector machine, logistic regression, and gradient boosting decision tree machine learning algorithms. Inter-group comparisons for continuous data were performed using the t-test or Mann-Whitney U test. Inter-group comparisons of enumeration data were performed using the Pearson χ2 test, continuity-corrected χ2 test, or Fisher's exact test. Results:The cutoff values for the Ki67 positivity index were 0.3 and 0.5 in 510 cases, with a follow-up time ranging from 1.2 to 11.4 years (median: 6.2 years). The recurrence-free survival time was between 1 and 135 months (median: 32 months), with recurrence-free survival rates post-surgery at 1, 2, 3, and 5 years were 87.5%, 77.1%, 61.2%, and 54.5%, respectively. The top five variables predicted HCC recurrence and non-recurrence conditions following surgical follow-up at 6 months, 1 year, 2 years, and beyond 2 years, in accordance with information obtained by the mRMR screen out. The Ki67 positivity index screened a successfully constructed machine learning model to predict HCC recurrence and non-recurrence conditions following surgical follow-up at 6 months, 1 year, 2 years, and beyond 2 years. The machine learning model based on the gradient boosting decision tree algorithm had the best prediction performance among them (areas under the receiver operating characteristic curves for predicting HCC recurrence within six months in the training and validation sets were 0.996 and 0.946, and accuracies were 0.972 and 0.935, respectively).Conclusion:A machine learning model was successfully constructed using the Ki67 positivity index combined with four readily available clinical features to predict HCC recurrence. The machine learning model based on the gradient boosting decision tree algorithm demonstrated the best performance in terms of predicting HCC recurrence within six months after surgery.
8.Effect of night-shift work and anxiety on work-related musculoskeletal disorders in electronic manufacturing employees
Xiaoyi LI ; Yushuo LIANG ; Wenzhen GAN ; Ruizhen LIN ; Xinyang YU ; Huiqing CHEN ; Min YANG ; Jiabin CHEN
China Occupational Medicine 2024;51(5):505-510
Objective To analyze the effect of night-shift work, anxiety and their interaction on work-related musculoskeletal disorders (WMSDs) among electronics manufacturing employees. Methods A total of 2 676 employees from 58 electronic manufacturing enterprises in the Pearl River Delta region of Guangdong Province were selected as the research subjects using the judgment sampling method. The Basic Situation Survey Scale, Generalized Anxiety Disorder 7-item Scale and Questionnaire of Musculoskeletal Disorders were used to assess night-shift work, anxiety and the prevalence of WMSDs in employees. The multivariate logistic regression model was used to analyze the effects of night-shift work, anxiety and their combined effects on the risk of WMSDs. Results The proportion of night-shift work was 30.3%, and the detection rates of anxiety and WMSDs were 26.8% and 41.3%, respectively. The results of multivariate logistic regression analysis showed that night-shift work and anxiety were independent risk factors of WMSDs in the research subjects, after excluding the influence of confounding factors such as age, marital status, enterprise size and length of service [odds ratio (OR) and 95% confidence interval (CI) were 1.307 (1.092-1.564) and 3.282 (2.739-3.934), respectively, both P<0.01]. Compared with those without night-shift work or anxiety, the risk of WMSDs was higher in individuals with only night-shift work, only anxiety, or both night-shift work and anxiety [OR and 95%CI were 1.347 (1.091-1.663), 3.395 (2.727-4.227) and 4.117 (3.072-5.519), respectively, all P<0.01]. Conclusion Both night-shift work and anxiety can increase the risk of WMSDs among electronic manufacturing employees, and these two factors exhibit a synergistic effect in increasing the risk of WMSDs.
9.Periodontitis exacerbates pulmonary hypertension by promoting IFNγ+T cell infiltration in mice
Meng XIAOQIAN ; Du LINJUAN ; Xu SHUO ; Zhou LUJUN ; Chen BOYAN ; Li YULIN ; Chen CHUMAO ; Ye HUILIN ; Zhang JUN ; Tian GUOCAI ; Bai XUEBING ; Dong TING ; Lin WENZHEN ; Sun MENGJUN ; Zhou KECONG ; Liu YAN ; Zhang WUCHANG ; Duan SHENGZHONG
International Journal of Oral Science 2024;16(2):359-369
Uncovering the risk factors of pulmonary hypertension and its mechanisms is crucial for the prevention and treatment of the disease.In the current study,we showed that experimental periodontitis,which was established by ligation of molars followed by orally smearing subgingival plaques from patients with periodontitis,exacerbated hypoxia-induced pulmonary hypertension in mice.Mechanistically,periodontitis dysregulated the pulmonary microbiota by promoting ectopic colonization and enrichment of oral bacteria in the lungs,contributing to pulmonary infiltration of interferon gamma positive(IFNγ+)T cells and aggravating the progression of pulmonary hypertension.In addition,we identified Prevotella zoogleoformans as the critical periodontitis-associated bacterium driving the exacerbation of pulmonary hypertension by periodontitis,and the exacerbation was potently ameliorated by both cervical lymph node excision and IFNγ neutralizing antibodies.Our study suggests a proof of concept that the combined prevention and treatment of periodontitis and pulmonary hypertension are necessary.
10.Genetic characterization of Vibrio cholerae strains genome in Fuzhou City from 2018 to 2023
LIN Wenzhen ; LIU Xiufeng ; CHEN Fanbing
China Tropical Medicine 2024;24(6):727-
Abstract: Objectives To sequence the whole genome of Vibrio cholerae strains isolated from Fuzhou between 2018 and 2023, predict virulence genes, antimicrobial resistance genes, and sequence loci information, analyze the genetic relationships among different strains, and provide evidence for cholera prevention and control. Methods Whole genome sequencing was performed on 60 strains of Vibrio cholerae, and bioinformatics software was used for quality control, gene assembly, and prediction of the sequencing data. PubMLST, ResFinder, and VFDB databases were used to predict the multilocus sequence typing, antimicrobial resistance genes, and virulence genes of different strains. Combined with the NCBI database, the phylogenetic tree was constructed by the maximum likelihood method through the core cgSNP phylogenetic analysis and de-recombination analysis. Results Based on the typing of 7 housekeeping genes, 60 Vibrio cholerae strains can be categorized into 16 known STs and 38 newly assigned STs. The clinical isolate H339 of serogroup O1 was identified as ST75. Serogroup O1 food isolates H13, H363, and H381 were all ST175. H263 and H357, the NOVC isolates, were both ST1218. H293 and H306 were ST1700. H311, H314, and H316 were all ST1699, with the remaining isolates displaying diversity. A total of 29 antimicrobial resistance genes were predicted, including aminoglycosides, β-lactams, quinolones, and folate pathway antagonists, with the majority of the strains carrying quinolones antimicrobial resistance genes. According to the VFDB prediction, all isolates had the virulence factors rtx and hlyA, 96.7% (58/60) of the strains carried the tlh genes, all serogroup O1 isolates carried tcp, zot, and ace genes, and all serogroup O1 clinical isolates carried ctxA genes. Phylogenetic tree analysis of the whole genome divided all strains into 20 branches, indicating high genomic divergence. Conclusions Thirty-eight new STs were identified. Genetic correlations were found among serogroup O1 food isolates, whereas serogroup O1 clinical isolates and serogroup O1 food isolates, as well as between serogroup O1 and NOVC strains, show distant phylogenetic relationships. There was diversity among the isolates. This study provides data support for the traceability of foodborne diseases.

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