1.Interactions among risk factors of diabetic retinopathy
Xiaojia SUN ; Guoheng ZHANG ; Ziyi ZHOU ; Yali NIU ; Hua FENG ; Ling WANG ; Guorui DOU
Chinese Journal of Experimental Ophthalmology 2025;43(1):38-46
Objective:To investigate the interaction of risk factors for diabetic retinopathy (DR) occurrence.Methods:A cross-sectional study was performed.A total of 6 783 diabetic patients with complete survey data from 2005 to 2018 in the National Health and Nutrition Survey database were enrolled, among which 4 426 patients were included according to inclusion criteria and were divided into non-DR diabetes group of 3 491 cases and DR group of 935 cases.The related risk factors were collected, including age, gender, race, residential status, education, annual household income, body mass index (BMI), fasting glucose, glycosylated hemoglobin, duration of diabetes, family history of diabetes, comorbidities, smoke, alcohol use, sleep, physical activity.Patient Health Questionnaire (PHQ-9) was used to assess the psychological status.After the categorization of all variables, risk factors of DR were analyzed by logistic regression, and the interaction between factors was further analyzed.Results:Multivariate analysis showed that female[odds ratio ( OR)=1.33, 95% confidence interval ( CI): 1.02-1.72], duration of diabetes ≥10 years ( OR=1.03, 95% CI: 1.02-1.04), insulin therapy ( OR=2.38, 95% CI: 1.87-3.05), urinary albumin creatinine ratio (UACR) ≥30 mg/g ( OR=1.55, 95% CI: 1.22-1.96) and depression ( OR=1.44, 95% CI: 1.13-1.83) were risk factors for DR, and BMI≤28 kg/m 2 ( OR=0.70, 95% CI: 0.55-0.89) was a protective factor for DR.Furthermore, interaction analysis revealed additive interaction between UACR ≥30 mg/g and insulin therapy [relative excess risk due to interaction ( RERI)=2.46, 95% CI: 0.84-4.09, attributable proportion due to interaction ( AP)=0.44, 95% CI: 0.26-0.63, synergy index ( S)=2.16, 95% CI: 1.37-3.41).The UACR ≥30 mg/g and longer diabetic duration ≥10 years had both multiplicative ( OR=1.67, 95% CI: 1.00-2.76) and additive interactions ( RERI=2.02, 95% CI: 0.79-3.25, AP=0.47, 95% CI: 0.27-0.66, S=2.53, 95% CI: 1.37-4.68). Conclusions:Patients with diabetes treated with insulin, with a duration of diabetes ≥10 years and accompanied by UACR ≥30 mg/g are at higher risk of developing DR than those with a single risk factor.
2.A case of occupational ultraviolet cataract caused by magnetic particle testing
Jun HU ; Min CHEN ; Yuejuan XIE ; Mingrong ZHANG ; Feng ZHANG ; Jianrui DOU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(7):533-536
Magnetic particle testing, as an efficient non-destructive testing method, has been widely applied in the field of defect detection for precision components. This study reports a case of occupational ultraviolet cataract caused by prolonged exposure of a magnetic particle testing worker to ultraviolet radiation exceeding standard intensity levels. Insufficient awareness of the potential ocular damage caused by long-wave ultraviolet radiation, inadequate provision of protective goggles, and non-compliant occupational hygiene monitoring and health examinations were identified as the primary contributing factors to this case.
3.Interactions among risk factors of diabetic retinopathy
Xiaojia SUN ; Guoheng ZHANG ; Ziyi ZHOU ; Yali NIU ; Hua FENG ; Ling WANG ; Guorui DOU
Chinese Journal of Experimental Ophthalmology 2025;43(1):38-46
Objective:To investigate the interaction of risk factors for diabetic retinopathy (DR) occurrence.Methods:A cross-sectional study was performed.A total of 6 783 diabetic patients with complete survey data from 2005 to 2018 in the National Health and Nutrition Survey database were enrolled, among which 4 426 patients were included according to inclusion criteria and were divided into non-DR diabetes group of 3 491 cases and DR group of 935 cases.The related risk factors were collected, including age, gender, race, residential status, education, annual household income, body mass index (BMI), fasting glucose, glycosylated hemoglobin, duration of diabetes, family history of diabetes, comorbidities, smoke, alcohol use, sleep, physical activity.Patient Health Questionnaire (PHQ-9) was used to assess the psychological status.After the categorization of all variables, risk factors of DR were analyzed by logistic regression, and the interaction between factors was further analyzed.Results:Multivariate analysis showed that female[odds ratio ( OR)=1.33, 95% confidence interval ( CI): 1.02-1.72], duration of diabetes ≥10 years ( OR=1.03, 95% CI: 1.02-1.04), insulin therapy ( OR=2.38, 95% CI: 1.87-3.05), urinary albumin creatinine ratio (UACR) ≥30 mg/g ( OR=1.55, 95% CI: 1.22-1.96) and depression ( OR=1.44, 95% CI: 1.13-1.83) were risk factors for DR, and BMI≤28 kg/m 2 ( OR=0.70, 95% CI: 0.55-0.89) was a protective factor for DR.Furthermore, interaction analysis revealed additive interaction between UACR ≥30 mg/g and insulin therapy [relative excess risk due to interaction ( RERI)=2.46, 95% CI: 0.84-4.09, attributable proportion due to interaction ( AP)=0.44, 95% CI: 0.26-0.63, synergy index ( S)=2.16, 95% CI: 1.37-3.41).The UACR ≥30 mg/g and longer diabetic duration ≥10 years had both multiplicative ( OR=1.67, 95% CI: 1.00-2.76) and additive interactions ( RERI=2.02, 95% CI: 0.79-3.25, AP=0.47, 95% CI: 0.27-0.66, S=2.53, 95% CI: 1.37-4.68). Conclusions:Patients with diabetes treated with insulin, with a duration of diabetes ≥10 years and accompanied by UACR ≥30 mg/g are at higher risk of developing DR than those with a single risk factor.
4.Efficacy analysis of infarct core resection combined with decompressive craniectomy based on corticospinal tract protection for massive cerebral infarction with malignant brain edema
Yanli ZHANG ; Jingmin DOU ; Menglu LI ; Fei ZHANG ; Baoming JIA ; Jiankai ZHAO ; Hongbin KU ; Guoqiang FENG
Chinese Journal of Cerebrovascular Diseases 2025;22(6):383-394
Objective To investigate the effectiveness and safety of infarct core resection combined with decompressive craniectomy(DC)based on corticospinal tract(CST)protection in the treatment of massive cerebral infarction(MCI)with malignant brain edema.Methods This study retrospectively enrolled MCI patients with malignant brain edema who underwent internal decompression combined with DC at Xingtai Central Hospital from January 2021 to June 2024.The enrolled patients were divided into a control group and an experimental group base on the intracranial internal decompression method used.All patients underwent CT perfusion(CTP),CT angiography(CTA),diffusion-weighted imaging(DWI),and diffusion tensor imaging(DTI)within 24 h of admission.Preoperative imaging data was automatically processed using an artificial intelligence diagnostic system.For the experimental group,the imaging data was fused within a neuro-navigation system preoperatively to visualize the spatial relationships between the infarct core,ischemic penumbra,and CST and infarct core resection combined with DC was performed while protecting the CST through neuro-navigation.The control group underwent anterior temporal lobectomy combined with DC.Baseline and clinical data were collected from both groups,including gender,age,smoking history,alcohol consumption history,diabetes,hypertension,hyperlipidemia,hyperhomocysteinemia,atrial fibrillation history,responsible occluded vessel(internal carotid artery,middle cerebral artery),preoperative infarct volume on DWI,preoperative ischemic penumbra volume,preoperative the National Institutes of Health stroke scale(NIHSS)score,time from onset to surgery,intraoperative procedure duration,intraoperative blood loss,preoperative and 1-month postoperative fraction anisotropy(FA)values of the CST on the affected side,modified Rankin scale(mRS)score at 6 months postoperatively,and surgery-related complications within 1 month postoperatively(intracranial hemorrhage[operative site oozing,hemorrhagic transformation]and intracranial infection[surgical incision site infection,empyema,brain abscess,meningitis]).6-month follow-up after surgery were conducted through outpatient visit or telephone calls and prognosis of patients was evaluated using the mRS(with mRS of 0-3 defined as good prognosis,4-6 as poor prognosis,and 6 indicating death).The effectiveness indicators included FA value of the affected CST at 1 month postoperatively,good prognosis rate after surgery at 6 months,and 6-month mortality rate after surgery.The safety indicators included the incidence rates of surgical complications(intracranial hemorrhage and infection)within 1 month postoperatively.Based on preoperative DTI images,all patients were further divided into a CST-intact(infarct core did not invade CST,CST morphology intact or deformed/shifted)and a CST-damaged(infarct core invaded CST,CST disrupted or interrupted)subgroup for analysis.Results A total of 62patients(37 males,25 females,age 49-60 years,mean[55±4]years)were enrolled in this study.With 28 patients in the experimental group and 34 in the control group.(1)No significant differences were found in baseline or clinical data between the experimental and control groups(all P>0.05),and the reoperative FA values of the affected CST were showed no significant differences(P=0.588).(2)The efficacy and safety metrics were evaluated.For the efficacy indices,at 1 month after the surgery,FA values of the affected CST increased significantly compared to preoperative values in both groups(0.409±0.051 vs.0.312±0.052 in the experimental group,and,0.381±0.048 vs.0.319±0.049 in control group;both P<0.05),and the FA value was significantly higher in the experimental group than that in the control group(0.409±0.051 vs.0.381±0.048,P=0.030).At the 6-month follow-ups,the good prognosis rate was significantly higher in the experimental group than that in the control group(39.3%[11/28]vs.14.7%[5/34],P=0.028).No significant difference in the 6-month mortality rate were observed between the two groups(P=0.787).For the safety indices,no significant differences were found in the incidence rates of intracranial hemorrhage or intracranial infection within 1 month postoperatively between the two groups(both P>0.05).(3)For further subgroup analysis,no significant differences were found in baseline or clinical data between the CST-damaged subgroup and the CST-intact subgroup in both the experimental and control groups(all P>0.05).In CST-intact subgroup,FA values of the affected CST increased significantly at 1 month postoperatively compared to preoperatively in the study group(0.428±0.047 vs.0.342±0.045,P<0.05)and the control group(0.401±0.051 vs.0.347±0.048,P<0.05).While in the CST-damaged subgroup,no significant differences were found in FA value of the affected CST 1 month postoperatively compared with that preoperatively in both the experimental and control groups(bothP>0.05).A significantly higher FA values 1 month postoperatively(0.428±0.047 vs.0.401±0.051,P=0.036)and good prognosis rate(9/12 vs.4/16,P=0.020)were observed in the CST-intact subgroup of the experimental group comparing with that of the control group,while there was no statistically significant difference in the 6-month mortality rate between the groups within the CST-intact subgroup(P=1.000).There were no statistically significant differences between the experimental group and the control group in both efficacy and safety indices within the CST-damaged subgroup(all P>0.05).Conclusions Infarct core resection combining DC with CST protection demonstrates superior neurological functional improvement in comparison with anterior temporal lobectomy combining DC in treating MCI with malignant brain edema,particularly for patients with an intact CST before surgery(as indicated in patients'preoperative imaging results).This(infarct core resection combining DC with CST protection)approach does not increase the incidence of surgical complications.Prospective large sample controlled studies are required for further validation.
5.A case of occupational ultraviolet cataract caused by magnetic particle testing
Jun HU ; Min CHEN ; Yuejuan XIE ; Mingrong ZHANG ; Feng ZHANG ; Jianrui DOU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2025;43(7):533-536
Magnetic particle testing, as an efficient non-destructive testing method, has been widely applied in the field of defect detection for precision components. This study reports a case of occupational ultraviolet cataract caused by prolonged exposure of a magnetic particle testing worker to ultraviolet radiation exceeding standard intensity levels. Insufficient awareness of the potential ocular damage caused by long-wave ultraviolet radiation, inadequate provision of protective goggles, and non-compliant occupational hygiene monitoring and health examinations were identified as the primary contributing factors to this case.
6.Clinical efficacy of internal decompression based on white matter tract preservation in treatment of malignant middle cerebral artery infarction
Yanli ZHANG ; Menglu LI ; Jiankai ZHAO ; Jingmin DOU ; Fei ZHANG ; Baoming JIA ; Guoqiang FENG ; Hongbin KU
Chinese Journal of Nervous and Mental Diseases 2025;51(10):596-600
Objective To investigate the clinical efficacy of internal decompression based on white matter tract preservation in the treatment of malignant middle cerebral artery infarction(MMCAI).Methods A retrospective analysis was conducted on 54 patients with MMCAI.Patients were divided into a study group(n=26)and a control group(n=28)according to the surgical approach.Patients in the study group underwent preoperative fusion of CT,CTP,DWI,and DTI imaging data within a neuronavigation system.This fusion visualized the spatial relationships between the infarct core(IC),ischemic penumbra,and the corticospinal tract(CST).Subsequently,IC resection combined with decompressive craniectomy(DC)was performed while protecting the CST.Patients in the control group underwent DC alone.Key outcome measures included:changes in fractional anisotropy(FA)within the affected CST projection area at 1 month postoperatively;and 6-month postoperative mRS score,mortality,and surgical complications at 6 months postoperatively.Results At 1 month postoperatively,FA in the affected CST projection area were significantly higher in the study group than in the control group(0.092±0.013 vs.0.082±0.008,P<0.05).At the 6-month follow-up,the postoperative mRS score in the study group was significantly lower than that in the control group[2.3(1.3,4.5)vs.3.9(2.4,5.5),P<0.05]and a lower mortality rate(11.5%vs.39.3%,P<0.05)compared to the control group.However,there were no statistically significant differences between the two groups in the incidence of postoperative intracranial hemorrhage,intracranial infection,or epilepsy(P>0.05).Conclusion Internal decompression based on white matter tract protection combined with DC can reduce mortality and contribute to improving function outcomes in patients with MMCAI.
7.Clinical efficacy of internal decompression based on white matter tract preservation in treatment of malignant middle cerebral artery infarction
Yanli ZHANG ; Menglu LI ; Jiankai ZHAO ; Jingmin DOU ; Fei ZHANG ; Baoming JIA ; Guoqiang FENG ; Hongbin KU
Chinese Journal of Nervous and Mental Diseases 2025;51(10):596-600
Objective To investigate the clinical efficacy of internal decompression based on white matter tract preservation in the treatment of malignant middle cerebral artery infarction(MMCAI).Methods A retrospective analysis was conducted on 54 patients with MMCAI.Patients were divided into a study group(n=26)and a control group(n=28)according to the surgical approach.Patients in the study group underwent preoperative fusion of CT,CTP,DWI,and DTI imaging data within a neuronavigation system.This fusion visualized the spatial relationships between the infarct core(IC),ischemic penumbra,and the corticospinal tract(CST).Subsequently,IC resection combined with decompressive craniectomy(DC)was performed while protecting the CST.Patients in the control group underwent DC alone.Key outcome measures included:changes in fractional anisotropy(FA)within the affected CST projection area at 1 month postoperatively;and 6-month postoperative mRS score,mortality,and surgical complications at 6 months postoperatively.Results At 1 month postoperatively,FA in the affected CST projection area were significantly higher in the study group than in the control group(0.092±0.013 vs.0.082±0.008,P<0.05).At the 6-month follow-up,the postoperative mRS score in the study group was significantly lower than that in the control group[2.3(1.3,4.5)vs.3.9(2.4,5.5),P<0.05]and a lower mortality rate(11.5%vs.39.3%,P<0.05)compared to the control group.However,there were no statistically significant differences between the two groups in the incidence of postoperative intracranial hemorrhage,intracranial infection,or epilepsy(P>0.05).Conclusion Internal decompression based on white matter tract protection combined with DC can reduce mortality and contribute to improving function outcomes in patients with MMCAI.
8.The efficacy and safety of dapagliflozin in non-diabetic patients with chronic kidney disease
Yuhua FENG ; Jingyu DOU ; Zhen ZHANG ; Lu WEN ; Qianqian LI ; Yan SU ; Genyang CHENG
Chinese Journal of Nephrology 2025;41(11):855-858
A total of 269 non-diabetic chronic kidney disease (CKD) patients were enrolled in this study. Among them, 175 patients (65.1%) were assigned to the control group and received conventional therapy with maximally tolerated doses of renin-angiotensin-aldosterone system inhibitors, while 94 patients (34.9%) were assigned to the dapagliflozin group and received oral dapagliflozin 10 mg/day in addition to the conventional therapy. The results showed that the urine protein quantity in the dapagliflozin group was lower than those in the control group at 3, 6, 12, 18, and 24 months of follow-up (all P<0.05), and the blood albumin level was higher than those in the control group at 18 and 24 months of follow-up (all P<0.05). The Kaplan-Meier survival curve analysis results showed that the cumulative renal survival rate of the dapagliflozin group was significantly higher than that of the control group (Log-rank test, χ2=5.078, P=0.024). Multivariable Cox regression analysis results revealed that using dapagliflozin was independently associated with a reduced risk of the composite endpoint in non-diabetic CKD patients ( HR=0.400, 95% CI 0.163-0.983, P=0.046). There was no statistical difference in adverse reactions between the two groups (all P>0.05). It is indicated that dapagliflozin has a renal protective effect independent of hypoglycemic action and good safety.
9.Efficacy analysis of infarct core resection combined with decompressive craniectomy based on corticospinal tract protection for massive cerebral infarction with malignant brain edema
Yanli ZHANG ; Jingmin DOU ; Menglu LI ; Fei ZHANG ; Baoming JIA ; Jiankai ZHAO ; Hongbin KU ; Guoqiang FENG
Chinese Journal of Cerebrovascular Diseases 2025;22(6):383-394
Objective To investigate the effectiveness and safety of infarct core resection combined with decompressive craniectomy(DC)based on corticospinal tract(CST)protection in the treatment of massive cerebral infarction(MCI)with malignant brain edema.Methods This study retrospectively enrolled MCI patients with malignant brain edema who underwent internal decompression combined with DC at Xingtai Central Hospital from January 2021 to June 2024.The enrolled patients were divided into a control group and an experimental group base on the intracranial internal decompression method used.All patients underwent CT perfusion(CTP),CT angiography(CTA),diffusion-weighted imaging(DWI),and diffusion tensor imaging(DTI)within 24 h of admission.Preoperative imaging data was automatically processed using an artificial intelligence diagnostic system.For the experimental group,the imaging data was fused within a neuro-navigation system preoperatively to visualize the spatial relationships between the infarct core,ischemic penumbra,and CST and infarct core resection combined with DC was performed while protecting the CST through neuro-navigation.The control group underwent anterior temporal lobectomy combined with DC.Baseline and clinical data were collected from both groups,including gender,age,smoking history,alcohol consumption history,diabetes,hypertension,hyperlipidemia,hyperhomocysteinemia,atrial fibrillation history,responsible occluded vessel(internal carotid artery,middle cerebral artery),preoperative infarct volume on DWI,preoperative ischemic penumbra volume,preoperative the National Institutes of Health stroke scale(NIHSS)score,time from onset to surgery,intraoperative procedure duration,intraoperative blood loss,preoperative and 1-month postoperative fraction anisotropy(FA)values of the CST on the affected side,modified Rankin scale(mRS)score at 6 months postoperatively,and surgery-related complications within 1 month postoperatively(intracranial hemorrhage[operative site oozing,hemorrhagic transformation]and intracranial infection[surgical incision site infection,empyema,brain abscess,meningitis]).6-month follow-up after surgery were conducted through outpatient visit or telephone calls and prognosis of patients was evaluated using the mRS(with mRS of 0-3 defined as good prognosis,4-6 as poor prognosis,and 6 indicating death).The effectiveness indicators included FA value of the affected CST at 1 month postoperatively,good prognosis rate after surgery at 6 months,and 6-month mortality rate after surgery.The safety indicators included the incidence rates of surgical complications(intracranial hemorrhage and infection)within 1 month postoperatively.Based on preoperative DTI images,all patients were further divided into a CST-intact(infarct core did not invade CST,CST morphology intact or deformed/shifted)and a CST-damaged(infarct core invaded CST,CST disrupted or interrupted)subgroup for analysis.Results A total of 62patients(37 males,25 females,age 49-60 years,mean[55±4]years)were enrolled in this study.With 28 patients in the experimental group and 34 in the control group.(1)No significant differences were found in baseline or clinical data between the experimental and control groups(all P>0.05),and the reoperative FA values of the affected CST were showed no significant differences(P=0.588).(2)The efficacy and safety metrics were evaluated.For the efficacy indices,at 1 month after the surgery,FA values of the affected CST increased significantly compared to preoperative values in both groups(0.409±0.051 vs.0.312±0.052 in the experimental group,and,0.381±0.048 vs.0.319±0.049 in control group;both P<0.05),and the FA value was significantly higher in the experimental group than that in the control group(0.409±0.051 vs.0.381±0.048,P=0.030).At the 6-month follow-ups,the good prognosis rate was significantly higher in the experimental group than that in the control group(39.3%[11/28]vs.14.7%[5/34],P=0.028).No significant difference in the 6-month mortality rate were observed between the two groups(P=0.787).For the safety indices,no significant differences were found in the incidence rates of intracranial hemorrhage or intracranial infection within 1 month postoperatively between the two groups(both P>0.05).(3)For further subgroup analysis,no significant differences were found in baseline or clinical data between the CST-damaged subgroup and the CST-intact subgroup in both the experimental and control groups(all P>0.05).In CST-intact subgroup,FA values of the affected CST increased significantly at 1 month postoperatively compared to preoperatively in the study group(0.428±0.047 vs.0.342±0.045,P<0.05)and the control group(0.401±0.051 vs.0.347±0.048,P<0.05).While in the CST-damaged subgroup,no significant differences were found in FA value of the affected CST 1 month postoperatively compared with that preoperatively in both the experimental and control groups(bothP>0.05).A significantly higher FA values 1 month postoperatively(0.428±0.047 vs.0.401±0.051,P=0.036)and good prognosis rate(9/12 vs.4/16,P=0.020)were observed in the CST-intact subgroup of the experimental group comparing with that of the control group,while there was no statistically significant difference in the 6-month mortality rate between the groups within the CST-intact subgroup(P=1.000).There were no statistically significant differences between the experimental group and the control group in both efficacy and safety indices within the CST-damaged subgroup(all P>0.05).Conclusions Infarct core resection combining DC with CST protection demonstrates superior neurological functional improvement in comparison with anterior temporal lobectomy combining DC in treating MCI with malignant brain edema,particularly for patients with an intact CST before surgery(as indicated in patients'preoperative imaging results).This(infarct core resection combining DC with CST protection)approach does not increase the incidence of surgical complications.Prospective large sample controlled studies are required for further validation.
10.The effect of left colic artery preservation on low anterior resection syndrome in patients of rectal cancer
Junling ZHANG ; Shuo FENG ; Tao WU ; Changyou WANG ; Guowei CHEN ; Yong JIANG ; Lie SUN ; Tao LIU ; Jingui WANG ; Weidong DOU ; Yingchao WU ; Xin WANG
Chinese Journal of General Surgery 2025;40(2):88-93
Objective:To investigate the effect of left colonic artery (LCA) preservation on rectal cancer patients' short-term postoperative anal function and quality of life.Methods:Two-hundred ninty-two patients with rectal cancer at the Department of Gastrointestinal Surgery of Peking University First Hospital between Jan 2022 and Dec 2023 were enrolled . The patients were divided into two groups according to whether the LCA was preserved during surgery or not. The LARS scale and EORTC QLQ-CR29 quality of life questionnaire were used to assess postoperative anal function and quality of life.Results:There were no significant differences between the two groups in terms of the amount of surgical blood loss and the number of lymph node dissections in the root No. 253 group and the time to postoperative voiding (all P>0.05). However, the LARS scores at 1 and 3 months postoperatively were significantly lower in the preserved LCA group than in the LCA nonpreserved group, especially for gas incontinence, loose stool leakage, and number of bowel movements (all P<0.05). The EORTC QLQ-CR29 scores showed that the LCA preserved group recovered significantly better than the non-preserved group in terms of postoperative voiding dysfunction ( P=0.007), urinary incontinence ( P=0.006), mucus discharge ( P=0.009), and fecal incontinence symptoms ( P<0.001). Male sexual dysfunction recovery was quicker in the preserved LCA group ( P=0.043), but there was no significant difference between the two groups at 3 months postoperatively( P>0.05). Conclusion:Preservation of the left colonic artery in low anterior resection of rectal cancer helps to reduce the incidence of postoperative low anterior resection syndrome, improve genitourinary symptoms, and improve patients' quality of life.

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