1.Mortality and years of life lost of residents with viral hepatitis among in Pudong New Area of Shanghai in 2003 - 2023
Sen WANG ; Lianghong SUN ; Caixia HU ; Hua CHEN ; Xiaobin QU ; Jiayi SHENG ; Siyue HAN ; Caoyi XUE ; Yichen CHEN
Journal of Public Health and Preventive Medicine 2026;37(1):53-57
Objective To analyze the characteristics of viral hepatitis mortality and life loss among residents in Pudong New Area from 2003 to 2023, and to provide a basis for related prevention and control work. Methods Viral hepatitis mortality data were obtained from the Pudong New Area mortality monitoring system. The crude mortality rate (CMR), standardized mortality rate (SMR), potential years of life lost (PYLL), average years of life lost (AYLL), and standardized potential years of life lost (SPYLL) were calculated to analyze viral hepatitis deaths. The average annual change (AAPC) and annual percentage change (APC) of the mortality rate were calculated by Joinpoint regression analysis to analyze the trend of mortality. Results The CMR and SMR of viral hepatitis among residents in Pudong New Area from 2003 to 2023 were 3.89/100000 and 1.98/100000, respectively. Both CMR and SMR of viral hepatitis showed a decreasing trend over time (CMR:APC=-5.476, t=-13.581, P<0.001; SMR:APC=- 7.624, t= -21.253, P<0.001). The CMR for males was 4.75/100000 and the SMR for males was 2.65/100000; the CMR for females was 3.04/100000 and the SMR for females was 1.32/100000, with a higher mortality rate for males than for females(ZCME=12.094,P<0.001; ZSMR=-14.718,P<0.001). Deaths were concentrated in the age groups of 45-64 years old and 65 years old and above, accounting for 91.62% of the total deaths. The PYLL of deaths due to viral hepatitis among residents in Pudong New Area from 2003 to 2023 was 26912 person-years, with a PYLLR of 0.45% and an AYLL of 8.88 years per person. Conclusion The mortality rate of viral hepatitis among the residents of Pudong New Area in 2003-2023 shows a decreasing trend over time. The mortality rate of males is higher than that of females, and the deaths of middle-aged and elderly people account for a large proportion of the total deaths. Chronic hepatitis B is the main cause of death.
2.Research advances and challenges in antimicrobial resistance surveillance technologies
Feng LIU ; Caixia DANG ; Ziqian ZHAO ; Yang WANG ; Yuanyong XU ; Hui CHEN
Journal of Public Health and Preventive Medicine 2026;37(3):128-132
Antimicrobial resistance (AMR) poses a critical global health threat. This review systematically examines AMR surveillance technology advances, from conventional culture methods to modern molecular diagnostics (e.g., whole-genome sequencing) and artificial intelligence-assisted approaches. It focuses on the current application of mass spectrometry, machine learning predictive models, and real-time surveillance networks. To address challenges including inadequate technical standardization, clinical translation barriers, and data-sharing limitations, we propose integrated "genotype-phenotype" strategies and global standardization framework, while exploring future applications of CRISPR-based portable detection, single-cell sequencing, and blockchain technologies.
3.Efficacy and Mechanism of Shenling Qushi Prescription in Treatment of Hyperuricaemia Mice
Xuan LIU ; Jialu QUE ; Caixia PANG ; Shuhui TAN ; Luyu CHEN ; Yihuan LI ; Xiaofeng LIN ; Qi LIANG ; Cuiling LIU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(19):197-206
ObjectiveTo investigate the urate-lowering effect of Shenling Qushi prescription in the mouse model of hyperuricaemia. MethodsSixty-three C57BL/6N mice were randomly assigned to the following groups (n=9): Control, model, low-dose (6 g·kg-1) Shenling Qushi prescription, medium-dose (12 g·kg-1) Shenling Qushi prescription, high-dose (24 g·kg-1) Shenling Qushi prescription, medium-dose Shenling Qushi prescription plus febuxostat (12+0.003 g·kg-1), and febuxostat (3 mg·kg-1). A mouse model of persistent hyperuricaemia was established via intraperitoneal injection of potassium oxazolamide (250 mg·kg-1) combined with oral administration of allopurinol (300 mg·kg-1) over a 28-day period. Concurrently, the prescription was administered orally at the specified doses once daily for 21 consecutive days. Throughout the experiment, mouse body weight, food intake, water consumption, and urine output were measured and recorded. Kidney and liver indices were calculated. Renal histopathological changes were observed by haematoxylin and eosin staining. Serum uric acid (SUA) and urinary uric acid (UUA) levels, along with xanthine oxidase (XOD) and adenosine deaminase (ADA), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities, were determined. Real-time PCR was employed to assess the mRNA levels of urate anion transporter 1 (URAT1) and glucose transporter 9 (GLUT9) in the renal tissue, alongside those of XOD and ADA in the liver tissue. The protein levels of URAT1 and GLUT9 in the renal tissue were determined by Western blot. ResultsCompared with the normal group, model mice exhibited reduced food intake and body weight (P<0.01), decreased water consumption yet increased urine output, no significant change in the liver index but increased kidney index (P<0.01). Pathological findings revealed renal tissue damage including glomerular atrophy, epithelial cell detachment, and inflammatory cell infiltration. Furthermore, the model group exhibited elevated UUA and SUA levels (P<0.01), enhanced activities of ALT, AST, XOD, and ADA in the liver tissue (P<0.05, P<0.01), upregulated mRNA and protein levels of URAT1 and GLUT9 in the renal tissue (P<0.05), alongside markedly elevated mRNA levels of XOD and ADA in the liver (P<0.01). Compared with the model group, the Shenling Qushi prescription groups showed no significant changes in body weight or food intake, with water consumption and urine output remaining within normal ranges, alleviated glomerular atrophy, with reduced pathological damage such as inflammatory infiltration, declined UUA and SUA levels (P<0.01), and increased activities of ALT, AST, XOD, and ADA in the serum (P<0.01). Real-time PCR results demonstrated that Shenling Qushi prescription downregulated the mRNA levels of URAT1 and GLUT9 in the renal tissue (P<0.05, P<0.01) and XOD and ADA in the hepatic tissue (P<0.05, P<0.01). Western blot results demonstrated Shenling Qushi prescription reduced the protein levels of URAT1 and GLUT9 (P<0.05, P<0.01). ConclusionShenling Qushi prescription modulates fluid balance and reduces uric acid levels, thereby alleviating renal injury in hyperuricaemic mice. This effect is highly likely mediated through inhibition of uric acid synthesis and reabsorption.
4.Effects of daily mean temperature on sudden death among residents of Pudong New Area, Shanghai: A time-series study
Siyue HAN ; Lianghong SUN ; Hua CHEN ; Xiaobin QU ; Jiayi SHENG ; Caixia HU ; Sen WANG ; Yichen CHEN ; Caoyi XUE
Journal of Environmental and Occupational Medicine 2026;43(8):959-966
Background The crude mortality rate of sudden death has shown a steady upward trend. Pudong New Area, Shanghai, is a highly urbanized and densely populated district that is substantially affected by the urban heat island effect and has experienced frequent extreme temperature events in recent years. However, evidence on the association between ambient temperatures and sudden death among local residents remains limited. Objective To examine the association between daily mean temperature and sudden death in Pudong New Area, and to provide evidence for reducing temperature-related risks of sudden death. Methods Data on sudden death, meteorological factors (daily average temperature, daily average relative humidity, and daily average air pressure), and air pollutants [inhalable particulate matter (PM10), sulfur dioxide (SO2), and nitrogen dioxide (NO2)] in Pudong New Area from 2016 to 2021 were collected. A distributed lag non-linear model was used to examine the associations of daily mean temperature with total sudden death and sudden death due to cardiovascular and cerebrovascular diseases, including lagged and cumulative effects (lag0, 0-3, 0-7, 0-14, and 0-21 d). Stratified analyses were performed by sex, age, and education level to identify vulnerable populations. The temperature attributable burden of sudden death was assessed by calculating attributable number (AN) and attribute fraction (AF). Results A total of 19458 sudden deaths were reported in Pudong New Area from 2016 to 2021, of which 11082 (56.95%) were due to cardiovascular and cerebrovascular diseases. Both low (P5, 4.6 ℃) and high (P95, 30.2 ℃) temperatures were associated with increased risks of sudden death. The cumulative risks associated with low temperature peaked at lag 0-21 d for both total sudden death and sudden death due to cardiovascular and cerebrovascular diseases. In contrast, the cumulative risks associated with high temperature peaked at lag 0-7 d for total sudden death and at lag 0-3 d for sudden death due to cardiovascular and cerebrovascular diseases. Stratified analyses showed that females, individuals aged ≥65 years, and those with primary school education or below were more sensitive to low temperature; whereas females, individuals aged <65 years, and those with secondary school education or above were more sensitive to high temperature. Using 21.5 ℃ as the minimum mortality temperature, the AN of total sudden deaths attributable to non-optimal temperature was 3791 (95%CI: 1853, 5587), with an AF of 20.41% (95%CI: 9.47%, 28.94%); the AN attributable to low temperature was 3358 (95%CI: 1087, 5062), with an AF of 17.26% (95%CI: 5.89%, 26.01%), whereas the AN attributable to high temperature was 225 (95%CI: −274, 655), with an AF of 2.03% (95%CI: −2.53%, 5.78%). For sudden deaths due to cardiovascular and cerebrovascular diseases, the AN attributable to non-optimal temperature was 2721 (95%CI: 1747, 5575), with an AF of 24.55% (95%CI: 9.59%, 28.65%); the AN attributable to low temperature was 2496 (95%CI: 988, 3562), with an AF of 22.53% (95%CI: 8.97%, 32.41%), whereas the AN attributable to high temperature was 614 (95%CI: −15, 1176), with an AF of 3.15% (95%CI: −0.08%, 6.02%). Conclusions Both low (P5, 4.6 ℃) and high (P95, 30.2 ℃) temperatures are associated with increased risks of sudden death in Pudong New Area, Shanghai. High temperature shows a relative short-term effect, whereas low temperature shows a stronger cumulative effect. Females, people ≥65 years, and individuals with primary school educational attainment or below are more vulnerable to low temperature, while females, people <65 years, and those with secondary school educational attainment or above are more vulnerable to high temperature. The attributable burden of low temperature is greater than that of high temperature. Targeted health protection measures should be strengthened for vulnerable populations during extreme temperature events.
5.The role of intraplaque neovascularization in recent and future ischemic stroke in patients with mild carotid stenosis
Luni ZHANG ; Rong WU ; Jing CHEN ; Shiyao GU ; Caixia JIA
Ultrasonography 2025;44(1):62-71
Purpose:
There is still insufficient evidence for predicting stroke risk in patients with mild carotid atherosclerotic stenosis. This study aimed to explore the association between carotid intraplaque neovascularization (IPN) in mild stenosis and ischemic stroke, using contrast-enhanced ultrasound (CEUS) imaging.
Methods:
This retrospective observational study included 369 patients from July 2021 to March 2022. These patients were categorized as symptomatic or asymptomatic based on their recent history of ipsilateral ischemic stroke. Initial parameters of carotid plaques, such as IPN grading and contrast enhancement index, were assessed using B-mode ultrasonography and CEUS. The follow-up period lasted 12 months or until a newly-developed ischemic stroke occurred. Logistic regression models and Cox proportional-hazards regression models were employed to explore the associations between ultrasonic parameters and the incidence of recent and future ischemic strokes.
Results:
In patients with mild stenosis, both increasing age and grade 2 carotid IPN were significant predictors of recent primary ischemic stroke. Furthermore, grade 2 carotid IPN independently predicted future ischemic strokes in both symptomatic and asymptomatic patients.
Conclusion
This study demonstrated that carotid IPN as detected by CEUS imaging holds potential as a useful non-invasive biomarker for predicting recent and future ischemic strokes in patients with mild carotid stenosis.
6.The role of intraplaque neovascularization in recent and future ischemic stroke in patients with mild carotid stenosis
Luni ZHANG ; Rong WU ; Jing CHEN ; Shiyao GU ; Caixia JIA
Ultrasonography 2025;44(1):62-71
Purpose:
There is still insufficient evidence for predicting stroke risk in patients with mild carotid atherosclerotic stenosis. This study aimed to explore the association between carotid intraplaque neovascularization (IPN) in mild stenosis and ischemic stroke, using contrast-enhanced ultrasound (CEUS) imaging.
Methods:
This retrospective observational study included 369 patients from July 2021 to March 2022. These patients were categorized as symptomatic or asymptomatic based on their recent history of ipsilateral ischemic stroke. Initial parameters of carotid plaques, such as IPN grading and contrast enhancement index, were assessed using B-mode ultrasonography and CEUS. The follow-up period lasted 12 months or until a newly-developed ischemic stroke occurred. Logistic regression models and Cox proportional-hazards regression models were employed to explore the associations between ultrasonic parameters and the incidence of recent and future ischemic strokes.
Results:
In patients with mild stenosis, both increasing age and grade 2 carotid IPN were significant predictors of recent primary ischemic stroke. Furthermore, grade 2 carotid IPN independently predicted future ischemic strokes in both symptomatic and asymptomatic patients.
Conclusion
This study demonstrated that carotid IPN as detected by CEUS imaging holds potential as a useful non-invasive biomarker for predicting recent and future ischemic strokes in patients with mild carotid stenosis.
7.Research progress on toxicological characteristics and health risk assessment of typical new energy materials
Caixia LU ; Baowei CHEN ; Ligang HU ; Yongshun HUANG
China Occupational Medicine 2025;52(1):114-120
With technological advancement and the growing demand for renewable energy, research and applications of new energy materials are becoming increasingly widespread. Typical new energy materials include lithium-ion battery materials, nanomaterials, nuclear energy materials and magnetic materials, etc., each of which has special toxicological characteristics. These materials may pose potential toxicological risks in the process of resource exploitation, production, transportation, usage, recycling or disposal, which have negatively impact on human health and the ecological environment. Occupational exposure is the main route of energy materials exposure, with potential health hazards on workers during the processes of production, transportation, recycling, and disposal. Among them, the disassembled batteries in the recycling or waste disposal process requires quality control, which is the high-risk position of occupational hazards. At present, the toxicology study of typical new energy materials mainly focuses on the potential impact of lithium-ion battery materials and nanomaterials on human health and the environment, but there are still limitations and challenges. In the future, it is necessary to further strengthen the human health risk management and prevention and control of new energy materials to protect human health and sustainable development.
8."Compatibility" Relationship of Active Components and Heat-clearing and Blood-cooling Effect of Rehmannia glutinosa Roots
Yaman CHEN ; Jinpeng CUI ; Juan ZHANG ; Qingpu LIU ; Haiyan GONG ; Jingwei LEI ; Fengqing WANG ; Caixia XIE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):193-201
ObjectiveTo analyze the "compatibility" relationship of sugars and glycosides and the heat-clearing and blood-cooling effect of the roots of four varieties of Rehmannia glutinosa and provide a basis for research on the pharmacodynamic material basis and quality control of R. glutinosa. MethodsThe content of sugars and glycosides in the roots of four varieties of R. glutinosa was determined during the growth period. The principal component analysis (PCA), orthogonal partial least squares-discriminant analysis (OPLS-DA), and the "compatibility" relationship of active components were employed to screen out the differential samples. A rat model of bleeding due to blood heat was used to verify the pharmacodynamic differences and the potential active components of differential samples. ResultsThe content and proportion characteristics of various components in roots of the four varieties of R. glutinosa during the expansion stage and the maturity stage had obvious differences. The proportion of phenylethanoid glycosides at the maturity stage was higher than that at the expansion stage. The R. glutinosa variety 85-5 had special quality characteristics among the tested varieties. All the samples alleviated the symptoms in the rat model. The effect of clearing heat and cooling blood was different between the maturity stage and the expansion stage, as well as between 85-5 samples at the maturity stage and other samples. The effect of clearing heat and cooling blood of R. glutinosa roots was the result of the combined action of multiple components in R. glutinosa roots and might be related to the high proportions of polysaccharides, iridoid glycosides, and phenylethanoid glycosides. ConclusionThe growth stage and variety affect the quality of R. glutinosa roots. The effect of clearing heat and cooling blood of R. glutinosa roots was related to the content and proportions of various components. The study can provide a basis for the basic research on the active components and quality control of R. glutinosa.
9."Compatibility" Relationship of Active Components and Heat-clearing and Blood-cooling Effect of Rehmannia glutinosa Roots
Yaman CHEN ; Jinpeng CUI ; Juan ZHANG ; Qingpu LIU ; Haiyan GONG ; Jingwei LEI ; Fengqing WANG ; Caixia XIE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):193-201
ObjectiveTo analyze the "compatibility" relationship of sugars and glycosides and the heat-clearing and blood-cooling effect of the roots of four varieties of Rehmannia glutinosa and provide a basis for research on the pharmacodynamic material basis and quality control of R. glutinosa. MethodsThe content of sugars and glycosides in the roots of four varieties of R. glutinosa was determined during the growth period. The principal component analysis (PCA), orthogonal partial least squares-discriminant analysis (OPLS-DA), and the "compatibility" relationship of active components were employed to screen out the differential samples. A rat model of bleeding due to blood heat was used to verify the pharmacodynamic differences and the potential active components of differential samples. ResultsThe content and proportion characteristics of various components in roots of the four varieties of R. glutinosa during the expansion stage and the maturity stage had obvious differences. The proportion of phenylethanoid glycosides at the maturity stage was higher than that at the expansion stage. The R. glutinosa variety 85-5 had special quality characteristics among the tested varieties. All the samples alleviated the symptoms in the rat model. The effect of clearing heat and cooling blood was different between the maturity stage and the expansion stage, as well as between 85-5 samples at the maturity stage and other samples. The effect of clearing heat and cooling blood of R. glutinosa roots was the result of the combined action of multiple components in R. glutinosa roots and might be related to the high proportions of polysaccharides, iridoid glycosides, and phenylethanoid glycosides. ConclusionThe growth stage and variety affect the quality of R. glutinosa roots. The effect of clearing heat and cooling blood of R. glutinosa roots was related to the content and proportions of various components. The study can provide a basis for the basic research on the active components and quality control of R. glutinosa.
10.The role of intraplaque neovascularization in recent and future ischemic stroke in patients with mild carotid stenosis
Luni ZHANG ; Rong WU ; Jing CHEN ; Shiyao GU ; Caixia JIA
Ultrasonography 2025;44(1):62-71
Purpose:
There is still insufficient evidence for predicting stroke risk in patients with mild carotid atherosclerotic stenosis. This study aimed to explore the association between carotid intraplaque neovascularization (IPN) in mild stenosis and ischemic stroke, using contrast-enhanced ultrasound (CEUS) imaging.
Methods:
This retrospective observational study included 369 patients from July 2021 to March 2022. These patients were categorized as symptomatic or asymptomatic based on their recent history of ipsilateral ischemic stroke. Initial parameters of carotid plaques, such as IPN grading and contrast enhancement index, were assessed using B-mode ultrasonography and CEUS. The follow-up period lasted 12 months or until a newly-developed ischemic stroke occurred. Logistic regression models and Cox proportional-hazards regression models were employed to explore the associations between ultrasonic parameters and the incidence of recent and future ischemic strokes.
Results:
In patients with mild stenosis, both increasing age and grade 2 carotid IPN were significant predictors of recent primary ischemic stroke. Furthermore, grade 2 carotid IPN independently predicted future ischemic strokes in both symptomatic and asymptomatic patients.
Conclusion
This study demonstrated that carotid IPN as detected by CEUS imaging holds potential as a useful non-invasive biomarker for predicting recent and future ischemic strokes in patients with mild carotid stenosis.


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