1.The role of PSD95-mediated synaptogenesis in hypoxic-induced neurobehavioral impairment in mice
Yang ZHOU ; Yi SHI ; Ruili GUAN ; Chong XUE ; Kailun YU ; Xuefeng SHEN
Chinese Journal of Neuroanatomy 2025;41(5):591-598
Objective:To investigate the protective effect of PSD95 on neurobehavioral abnormalities and synaptic damage in cortex induced by hypoxia exposure in mice.Methods:The 3-week-old C57BL/6 male mice were injected with neuron-specific adeno-associated virus through stereotaxic brain after 7 days of normal environment adaptation.The mice were divided into normoxia group(AAV-NC-Nor),control hypoxia group(AAV-NC-Hyp),normal oxygen group with over-expression of postsynaptic density-95(PSD95)(AAV-PSD95-Nor),and hypoxia group with over-expression of PSD95(AAV-PSD95-Hyp).Using a hypobaric hypoxia chamber,PSD95-overexpressing mice were continuously ex-posed to hypoxic conditions for 14 days to establish a hypoxia exposure model.The open field,elevated cross maze and conditioned fear tests were used to detect the neurobehavioral activities of mice,and Golgi staining was used to observe the density of neuronal dendritic spines in cortex.The expression of PSD95,SYN1 and N-methyl-D-aspartate receptor subtype 2A(NMDAR2A)were detected by Western blot.Result:Compared with the normal oxygen group,the total distance and average speed of exercise in the open field experiment of mice in hypoxia group increased(P<0.01),the rigidity time of mice in the conditioned fear box decreased(P<0.01),and the density of dendritic spines in cortical region decreased(P<0.05).The expressions of PSD95,SYN1 and NMDAR2A were decreased(P<0.05).After the over-expression of PSD95,the autonomic activity of mice was reduced,the fear memory was relieved(P<0.05),the dendrite density was reversed(P<0.05),and the expression of synaptic related protein was increased(P<0.05).Conclusion:Over-expression of PSD95 can alleviate neurobehavioral abnormalities and decline of fear memory induced under hypoxia exposure,protect neuronal dendritic spine injury in cortical region,and up-regulate the expression of syn-aptic protein.
2.Research progress on intelligent diagnosis of eye diseases based on facial photos
Hanwen XU ; Moxin CHEN ; Xiaoyi LIANG ; Qin SHU ; Wanqin NIE ; Xuefeng YANG ; Minxuan SHEN ; Xiaojing LI ; Yu CAO ; Lin LI
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1249-1255
The number of patients with eye diseases in China is enormous,and the negative effects of these conditions,such as impaired visual function,psychological burdens,and restricted social participation,are becoming increasingly severe.Due to the limited and unevenly distributed ophthalmic resources,and the significant limitations of traditional diagnostic and therapeutic approaches in terms of accuracy and efficiency,there is an urgent need for more sensitive and efficient modalities.With the rapid advancement of artificial intelligence technology,ophthalmic diagnosis has entered a new stage of intelligent transformation.Facial photos,as a noninvasive and convenient medium,show unique advantages in eye disease diagnosis.Artificial intelligence systems based on facial photo analysis have been applied to the screening and diagnosis of conditions such as myopia,strabismus,ptosis,and thyroid eye disease,showing promising results.This review introduces the workflow of intelligent diagnosis for ocular diseases based on facial photographs,with a focus on recapitulating relevant research findings both domestically and internationally in recent years.It summarizes the innovative features and application advantages of intelligent diagnosis systems for eye diseases based on facial photos,analyzes the current technical bottlenecks and challenges in application,proposes corresponding countermeasures,and discusses future development directions,aiming to provide references and new insights for the intelligent screening and diagnosis of eye diseases.
3.Analysis of potential profile categories and influencing factors of cancer related worries in postoperative patients with early lung cancer
Yingzi YANG ; Xuefeng TANG ; Chen SHEN ; Xiaoting PAN ; Xinxin CHEN ; Yumei LI
Chinese Journal of Practical Nursing 2025;41(4):297-304
Objective:To explore the potential profile characteristics of cancer-related worries in patients after surgery for early-stage lung cancer, and the influencing factors of different categories, provide reference for patients to formulate individualized rehabilitation programs and psychological intervention measures.Methods:A cross-sectional survey method was used to conveniently select patients who received outpatient follow-up after lung cancer surgery at Shanghai Pulmonary Hospital Affiliated to Tongji University from October 2022 to October 2023 as the survey subjects. The general information questionnaire, the Chinese version of Brief Cancer-related Worry Inventory, the Chinese version of the MD Anderson Symptom Inventory, Brief Illness Perception Questionnaire, 10-item Connor Davidson Resilience Scale and Medical Coping Modes Questionnaire were examined. Latent profile analysis was performed on the cancer-related worry scores of lung cancer surgery patients, and its influencing factors were explored by binary Logistic regression analysis.Results:A total of 302 patients after lung cancer surgery were included, including 111 males and 191 females, aged 18-83(52.73 ± 13.07) years, and the Chinese version of the Brief Cancer-related Worry Inventory scored 380.00 (130.00, 720.00) points. The cancer-related worry of patients after lung cancer surgery could be divided into two potential profile categories: "high worry type" (138 patients accounted for 45.70%) and "low worry type" (164 patients accounted for 54.30%). Symptom burden ( OR=1.055, 95% CI 1.039-1.072), illness perception ( OR=1.190, 95% CI 1.127-1.256), resilience ( OR=0.933, 95% CI 0.886-0.983), and coping modes of confrontation ( OR=0.857, 95% CI 0.757-0.971) and acceptance-resignation ( OR=1.247, 95% CI 1.050-1.481) were influencing factors for grouping cancer related worry profiles (all P<0.05). Conclusions:There was significant heterogeneity in the level of cancer-related worries among patients after surgery for early-stage lung cancer. It is recommended that medical staff provide targeted continuity care measures based on the characteristics of worries of different categories of patients to improve patients' postoperative mental health and quality of life.
4.The role of PSD95-mediated synaptogenesis in hypoxic-induced neurobehavioral impairment in mice
Yang ZHOU ; Yi SHI ; Ruili GUAN ; Chong XUE ; Kailun YU ; Xuefeng SHEN
Chinese Journal of Neuroanatomy 2025;41(5):591-598
Objective:To investigate the protective effect of PSD95 on neurobehavioral abnormalities and synaptic damage in cortex induced by hypoxia exposure in mice.Methods:The 3-week-old C57BL/6 male mice were injected with neuron-specific adeno-associated virus through stereotaxic brain after 7 days of normal environment adaptation.The mice were divided into normoxia group(AAV-NC-Nor),control hypoxia group(AAV-NC-Hyp),normal oxygen group with over-expression of postsynaptic density-95(PSD95)(AAV-PSD95-Nor),and hypoxia group with over-expression of PSD95(AAV-PSD95-Hyp).Using a hypobaric hypoxia chamber,PSD95-overexpressing mice were continuously ex-posed to hypoxic conditions for 14 days to establish a hypoxia exposure model.The open field,elevated cross maze and conditioned fear tests were used to detect the neurobehavioral activities of mice,and Golgi staining was used to observe the density of neuronal dendritic spines in cortex.The expression of PSD95,SYN1 and N-methyl-D-aspartate receptor subtype 2A(NMDAR2A)were detected by Western blot.Result:Compared with the normal oxygen group,the total distance and average speed of exercise in the open field experiment of mice in hypoxia group increased(P<0.01),the rigidity time of mice in the conditioned fear box decreased(P<0.01),and the density of dendritic spines in cortical region decreased(P<0.05).The expressions of PSD95,SYN1 and NMDAR2A were decreased(P<0.05).After the over-expression of PSD95,the autonomic activity of mice was reduced,the fear memory was relieved(P<0.05),the dendrite density was reversed(P<0.05),and the expression of synaptic related protein was increased(P<0.05).Conclusion:Over-expression of PSD95 can alleviate neurobehavioral abnormalities and decline of fear memory induced under hypoxia exposure,protect neuronal dendritic spine injury in cortical region,and up-regulate the expression of syn-aptic protein.
6.Gallstones, cholecystectomy, and cancer risk: an observational and Mendelian randomization study.
Yuanyue ZHU ; Linhui SHEN ; Yanan HUO ; Qin WAN ; Yingfen QIN ; Ruying HU ; Lixin SHI ; Qing SU ; Xuefeng YU ; Li YAN ; Guijun QIN ; Xulei TANG ; Gang CHEN ; Yu XU ; Tiange WANG ; Zhiyun ZHAO ; Zhengnan GAO ; Guixia WANG ; Feixia SHEN ; Xuejiang GU ; Zuojie LUO ; Li CHEN ; Qiang LI ; Zhen YE ; Yinfei ZHANG ; Chao LIU ; Youmin WANG ; Shengli WU ; Tao YANG ; Huacong DENG ; Lulu CHEN ; Tianshu ZENG ; Jiajun ZHAO ; Yiming MU ; Weiqing WANG ; Guang NING ; Jieli LU ; Min XU ; Yufang BI ; Weiguo HU
Frontiers of Medicine 2025;19(1):79-89
This study aimed to comprehensively examine the association of gallstones, cholecystectomy, and cancer risk. Multivariable logistic regressions were performed to estimate the observational associations of gallstones and cholecystectomy with cancer risk, using data from a nationwide cohort involving 239 799 participants. General and gender-specific two-sample Mendelian randomization (MR) analysis was further conducted to assess the causalities of the observed associations. Observationally, a history of gallstones without cholecystectomy was associated with a high risk of stomach cancer (adjusted odds ratio (aOR)=2.54, 95% confidence interval (CI) 1.50-4.28), liver and bile duct cancer (aOR=2.46, 95% CI 1.17-5.16), kidney cancer (aOR=2.04, 95% CI 1.05-3.94), and bladder cancer (aOR=2.23, 95% CI 1.01-5.13) in the general population, as well as cervical cancer (aOR=1.69, 95% CI 1.12-2.56) in women. Moreover, cholecystectomy was associated with high odds of stomach cancer (aOR=2.41, 95% CI 1.29-4.49), colorectal cancer (aOR=1.83, 95% CI 1.18-2.85), and cancer of liver and bile duct (aOR=2.58, 95% CI 1.11-6.02). MR analysis only supported the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer. This study added evidence to the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer, highlighting the importance of cancer screening in individuals with gallstones.
Humans
;
Mendelian Randomization Analysis
;
Gallstones/complications*
;
Female
;
Male
;
Cholecystectomy/statistics & numerical data*
;
Middle Aged
;
Risk Factors
;
Aged
;
Adult
;
Neoplasms/etiology*
;
Stomach Neoplasms/epidemiology*
7.Assessment of the relationship between spatial navigation impairment and dynamic functional connectivity in individuals with subjective cognitive decline across different traditional Chinese medicine constitutions
Weiping LI ; Shuying LI ; Xuefeng MA ; Hai LU ; Qian CHEN ; Peihua SHEN ; Jiaming LU ; Xin ZHANG ; Bing ZHANG
Chinese Journal of Internal Medicine 2025;64(12):1226-1234
Objective:To investigate the relationship between alterations in dynamic functional connectivity (dFC) and spatial navigation abilities in individuals with subjective cognitive decline (SCD) across different Traditional Chinese Medicine (TCM) constitutions.Methods:Seventy-five participants with SCD, comprising 34 individuals with balanced constitutions and 41 individuals with biased constitutions, were recruited from the Affiliated Drum Tower Hospital of Nanjing University Medical School between August 2022 and January 2025. The participants underwent TCM constitution assessment, spatial navigation ability testing, and neuropsychological scale evaluation. Additionally, each participant was assessed using 3.0 T resting-state functional magnetic resonance imaging (rs-fMRI) and high-resolution T1-weighted imaging scans. Based on prior research, 20 spatial navigation-related regions of interest (ROIs) were defined. Afterwards, rs-fMRI time series were segmented using a sliding time window approach before calculating the dFC within the spatial navigation brain network.Results:Compared to the balanced constitution group, the biased constitution SCD group showed significantly lower scores on the Mini-Mental State Examination (MMSE) ( z=-3.05, P=0.002) and the Auditory Verbal Learning Test (AVLT) measures: immediate recall ( z=-2.12, P=0.035), short-delay recall ( z=-2.22, P=0.026), long-delay recall ( z=-2.88, P=0.004), cued recall ( z=-2.91, P=0.004), and recognition ( z=-2.20, P=0.028). They also exhibited significantly higher average error distances in ego-allocentric navigation ( z=-2.28, P=0.023), egocentric navigation ( z=-2.31, P=0.021), and delayed navigation ( z=-2.02, P=0.043). Participants with SCD who had a biased constitution also demonstrated significantly reduced dFC between the left parahippocampal gyrus (PHG) and left prefrontal cortex (PFC) ( t=2.43), right precuneus and right retrosplenial cortex (RSC) ( t=2.96), and left inferior parietal lobule (IPL) and left hippocampus ( t=2.42) (all P<0.05, Bonferroni-corrected). Conversely, the dFC was significantly increased between the right PHG and left PFC ( t=-2.29, P<0.05, Bonferroni-corrected). Significant correlations were also found in participants with SCD who had biased constitutions: the dFC between the left PHG and left PFC positively correlated with the egocentric navigation average total error ( r=0.34, P=0.030) and negatively correlated with the visuospatial memory cognitive domain ( r=-0.35, P=0.026); the dFC between the left IPL and left hippocampus negatively correlated with the egocentric navigation average total error ( r=-0.32, P=0.043); and the dFC between the right PHG and left PFC positively correlated with the delayed navigation average total error ( r=0.33, P=0.037). The area under the ROC curve for the combined differences in cognitive assessments, spatial navigation behavior, and navigation-related brain network dFC was 0.966 in predicting biased constitution versus balanced constitution in participants with SCD. Conclusions:Individuals with SCD and biased constitutions demonstrated poorer spatial navigation ability, possibly due to altered dFC within the spatial navigation brain network. Furthermore, the integrated model based on spatial navigation behaviors and dFC exhibited a high predictive value in distinguishing between individuals with SCD who had balanced and biased constitutions.
8.The value of thrombin generation and activated protein C resistance in thrombotic risk assessment for patients with lupus anticoagulant
Guiting ZHANG ; Aili JUERAITI ; Yu LIU ; Guanqun XU ; Han SHEN ; Jing DAI ; Xuefeng WANG ; Yeling LU
Chinese Journal of Laboratory Medicine 2025;48(8):979-984
Objective:To analyze the levels of thrombin generation and activated protein C resistance (APC-R) in lupus anticoagulant (LA)-positive patients, and to assess their effectiveness in predicting thrombotic risk in these patients.Methods:Retrospective case-control study. A total of 185 patients with positve LA [91 males, 94 females; age (47.59±19.14) years] in Ruijin Hospital of Shanghai Jiaotong University School of Medicine from November 1st, 2024 to March 31st, 2025 were included. Patients were stratified into thrombotic ( n=91) and non-thrombotic groups ( n=94) based on clinical diagnosis and imaging evidence of thrombosis. The basic characteristics and routine laboratory coagulation levels of LA-positive patients were analyzed. Post-test plasma samples were collected from 43 cases with positive or strongly positive LA, categorized into thrombotic ( n=23) and non-thrombotic ( n=20) groups. Additionally, plasma was collected from 80 healthy controls [40 males and 40 females, age (38.37±15.74) years]. Using simple random sampling method, plasma samples from 10 selected males and 10 selected females were mixed to make 1 group of healthy control, thus accordingly resulted in a total of 4 healthy control groups. Thrombin generation assays (TGA) were then employed to measure prothrombin generation and activated protein C resistance (APC-R) levels in the healthy control, non-thrombotic, and thrombotic groups. One-way analysis of variance was utilized to compare thrombin generation and APC-R levels across these groups. Results:Among the routine laboratory coagulation indexes, the median levels of activated partial thromboplastin time (APTT), fibrin degradation product (FDP) and protein C (PC) in thrombotic group were 30.9 (28.8, 35.5) s, 2.5 (1.3, 2.8) mg/L, and 107.0 (93.0, 127.0)%, respectively, which were significantly higher compared with the non-thrombosis group (all P<0.05). However, between the thrombotic and non-thrombotic group, no statistically significant differences were observed for the levels of prothrombin time (PT), thrombin time (TT), fibrinogen (Fg), or D-dimer (D-D) ( P>0.05). The TGA results showed that the total thrombin generation, the maximal thrombin generation and APC-R levels of patients in the thrombotic group were (1 118.72±387.34) nmol/L·min, (106.01±59.00) nmol/L and (0.33±0.22), respectively, which were significantly higher compared with those in the non-thrombotic group (all P<0.05). Conclusion:Significantly increased thrombin generation and enhanced APC-R were present in the LA-positive patients with thrombosis, indicating the important values of thrombin generation and APC-R in assessing thrombosis risk among this population.
9.Research progress on intelligent diagnosis of eye diseases based on facial photos
Hanwen XU ; Moxin CHEN ; Xiaoyi LIANG ; Qin SHU ; Wanqin NIE ; Xuefeng YANG ; Minxuan SHEN ; Xiaojing LI ; Yu CAO ; Lin LI
Journal of Shanghai Jiaotong University(Medical Science) 2025;45(9):1249-1255
The number of patients with eye diseases in China is enormous,and the negative effects of these conditions,such as impaired visual function,psychological burdens,and restricted social participation,are becoming increasingly severe.Due to the limited and unevenly distributed ophthalmic resources,and the significant limitations of traditional diagnostic and therapeutic approaches in terms of accuracy and efficiency,there is an urgent need for more sensitive and efficient modalities.With the rapid advancement of artificial intelligence technology,ophthalmic diagnosis has entered a new stage of intelligent transformation.Facial photos,as a noninvasive and convenient medium,show unique advantages in eye disease diagnosis.Artificial intelligence systems based on facial photo analysis have been applied to the screening and diagnosis of conditions such as myopia,strabismus,ptosis,and thyroid eye disease,showing promising results.This review introduces the workflow of intelligent diagnosis for ocular diseases based on facial photographs,with a focus on recapitulating relevant research findings both domestically and internationally in recent years.It summarizes the innovative features and application advantages of intelligent diagnosis systems for eye diseases based on facial photos,analyzes the current technical bottlenecks and challenges in application,proposes corresponding countermeasures,and discusses future development directions,aiming to provide references and new insights for the intelligent screening and diagnosis of eye diseases.
10.Analysis of potential profile categories and influencing factors of cancer related worries in postoperative patients with early lung cancer
Yingzi YANG ; Xuefeng TANG ; Chen SHEN ; Xiaoting PAN ; Xinxin CHEN ; Yumei LI
Chinese Journal of Practical Nursing 2025;41(4):297-304
Objective:To explore the potential profile characteristics of cancer-related worries in patients after surgery for early-stage lung cancer, and the influencing factors of different categories, provide reference for patients to formulate individualized rehabilitation programs and psychological intervention measures.Methods:A cross-sectional survey method was used to conveniently select patients who received outpatient follow-up after lung cancer surgery at Shanghai Pulmonary Hospital Affiliated to Tongji University from October 2022 to October 2023 as the survey subjects. The general information questionnaire, the Chinese version of Brief Cancer-related Worry Inventory, the Chinese version of the MD Anderson Symptom Inventory, Brief Illness Perception Questionnaire, 10-item Connor Davidson Resilience Scale and Medical Coping Modes Questionnaire were examined. Latent profile analysis was performed on the cancer-related worry scores of lung cancer surgery patients, and its influencing factors were explored by binary Logistic regression analysis.Results:A total of 302 patients after lung cancer surgery were included, including 111 males and 191 females, aged 18-83(52.73 ± 13.07) years, and the Chinese version of the Brief Cancer-related Worry Inventory scored 380.00 (130.00, 720.00) points. The cancer-related worry of patients after lung cancer surgery could be divided into two potential profile categories: "high worry type" (138 patients accounted for 45.70%) and "low worry type" (164 patients accounted for 54.30%). Symptom burden ( OR=1.055, 95% CI 1.039-1.072), illness perception ( OR=1.190, 95% CI 1.127-1.256), resilience ( OR=0.933, 95% CI 0.886-0.983), and coping modes of confrontation ( OR=0.857, 95% CI 0.757-0.971) and acceptance-resignation ( OR=1.247, 95% CI 1.050-1.481) were influencing factors for grouping cancer related worry profiles (all P<0.05). Conclusions:There was significant heterogeneity in the level of cancer-related worries among patients after surgery for early-stage lung cancer. It is recommended that medical staff provide targeted continuity care measures based on the characteristics of worries of different categories of patients to improve patients' postoperative mental health and quality of life.

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