1.Comparison of mosquito capture efficacy between the BG-Sentinel trap method and the light trap method
Yingyu YANG ; Chunwei SUN ; Zhixin WU ; Jiang ZHU
Shanghai Journal of Preventive Medicine 2026;38(3):240-244
ObjectiveTo compare the mosquito capture efficacy of the BG-trap method and the light trap method, and to explore the precisely applicable scenarios for the two monitoring approaches. MethodsFrom May to October 2024, one BG-trap and one light trap were placed at eight monitoring sites, with a distance of over 10 meters between the two traps at each site. Surveillance was performed twice monthly to compare the two surveillance methods in terms of mosquito species composition, the proportional distribution of female mosquitoes across different habitats, and seasonal fluctuations in mosquito density. ResultsThere were statistically significant differences in mosquito species composition (χ2=60.61, P<0.001) and female mosquito species composition (χ2=37.12, P<0.001) between the BG-trap method and the light trap method, with the BG-trap method capturing a higher proportion of Aedes albopictus than the light trap method. The average density of mosquitoes monitored by the BG-trap method [13.36 mosquitoes·(trap·night)-1] was higher than that monitored by the light trap method[4.70 mosquitoes·(trap·night)-1]. There was statistically significant difference (t=6.70, P<0.001) for the mosquito density between the two methods, and there was a significant positive correlation (r=0.909, P<0.001) for the mosquito density indices between the two methods. The average density of female mosquitoes monitored by the BG-trap method [8.18 mosquitoes·(trap·night)-1] was higher than that monitored by light trap method [3.36 mosquitoes·(trap·night)-1]. There was statistically significant difference (t=6.00, P<0.001) for the female mosquito density between the two methods, and there was a significant positive correlation (r=0.929, P<0.001) for the female mosquito density indices between the two methods. In the four different habitats, the constituent ratio of mosquitoes and female mosquitoes monitored by the BG-trap method in descending order were urban residential area (43.80% and 40.25%), rural farm households (35.55% and 38.60%), hospital (12.70% and 12.87%), and park (7.95% and 8.28%), while the constituent ratio of mosquitoes and female mosquitoes monitored by the light trap method in descending order were rural farm households (34.37% and 43.34%), hospital (33.26% and 30.03%), park (17.96% and 15.17%), and urban residential area (14.41% and 11.46%). In different habitats, there were statistically significant differences for mosquito composition ratios (χ2=189.64, P<0.001) and female mosquito composition ratios (χ2=109.15, P<0.001) between the two monitoring methods. ConclusionThe BG-trap method offers advantages such as simple operation, compact equipment, and high efficiency, with a higher trapping rate for Aedes albopictus compared to the light trap method. In routine monitoring, the BG-trap method can serve as a supplement to the light trap method, while for emergency monitoring of Aedes albopictus in dengue fever outbreak areas and mosquito collection efforts, the BG-trap method is more effective than the light trap method.
2.Surveillance on the density of Aedes albopictus in Baoshan District, Shanghai Municipality from 2018 to 2024
Haijian WANG ; Yingyu YANG ; Chunwei SUN ; Miaomiao HE ; Yi ZHANG
Chinese Journal of Schistosomiasis Control 2026;38(2):207-212
Objective To investigate the changes in the density of Aedes albopictus across different regions and different breeding habitats in Baoshan District, Shanghai Municipality from 2018 to 2024, so as to inform evidence-based control strategies for mosquito-borne infectious diseases in Shanghai Municipality. Methods Ae. albopictus surveillance sites were deployed in 12 subdistricts (towns) of Baoshan District, Shanghai Municipality from 2018 to 2024, and the surveillance on the density of Ae. albopictus was performed in each surveillance site once weekly during the peak activity period of Aedes mosquitoes from May to October each year from 2018 to 2024. Mosquito ovitraps were deployed in various breeding habitats in each surveillance site according to geographical locations, including residential areas, schools, government institutions, hospitals, recycling stations, and construction sites, and regularly collected, and the mosquito ovitrap index (MOI) was calculated. The changes in the Ae. albopictus density were analyzed based on MOI across years, regions, and breeding habitats. Additionally, from May to October each year between 2018 and 2024, monthly risk assessments of Aedes albopictus density were conducted in every subdistrict (town) of Baoshan District, Shanghai. Results The annual mean MOI values of Ae. albopictus were 5.88 ± 2.29, 8.19 ± 4.46, 7.43 ± 3.40, 5.44 ± 2.52, 3.97 ± 2.72, 3.82 ± 1.57, and 2.56 ± 1.11 in Baoshan District from 2018 to 2024, respectively (F = 75.886, P < 0.05), and the MOI appeared a rise followed by a reduction each year and peaked during the period between June and August. There was a significant difference in the 7-year mean MOI of Ae. albopictus across the 12 subdistricts/towns (F = 26.558, P < 0.05), and there were 6 subdistricts/towns with a 7-year mean MOI of over 5, including Songnan Town (8.44 ± 4.68), Dachang Town (7.71 ± 5.28), Gucun Town (7.13 ± 3.57), Yuepu Town (5.74 ± 1.69), Gaojing Town (5.51 ± 3.44), and Wusong Subdistrict (5.41 ± 2.04). There was a significant difference in the MOI of Ae. albopictus across breeding habitats (F = 3.843, P < 0.05), with the highest MOI seen in recycling stations (9.86 ± 4.61), which was significantly higher than in other habitats (P < 0.05), and the lowest seen in construction sites (4.90 ± 2.95), which was significantly lower than in other habitats (P < 0.05). The proportion of frequency with Ae. albopictus density transmission risk decreased from 54.17% in 2018 to 11.11% in 2024 in all subdistricts (towns) of Baoshan District, and the frequency of outbreak risks peaked in 2019 (18 instances) and declined substantially in 2021 (6 instances), with no records of outbreak or transmission risk documented across the district in 2024. Conclusions There were substantial seasonal variations in the Ae. albopictus density in Baoshan District, Shanghai Municipality from 2018 to 2024. The Ae. albopictus density peaked during the period between June and August in Baoshan District each year from 2018 to 2024, with a relatively higher density in Songnan Town and Dachang Town, and in recycling stations. Precision control measures and intensified seasonal interventions are recommended in high-risk settings in Baoshan District to reduce the transmission risk of Aedes-borne infectious diseases.
3.ManNAc improves glucose and lipid metabolic disorders in high-fat diet-induced obese mice
Xiangxue KONG ; Dan LI ; Jiangwei XU ; Ju YANG ; Yingyu WANG ; Jiai YAN ; Jing SUN ; Hong CAO
Chinese Journal of Endocrinology and Metabolism 2025;41(5):401-410
Objective:To investigate the ameliorative effects of N-acetyl-D-mannosamine(ManNAc) on glucose and lipid metabolic disorders in obese mice.Methods:In vivo experiments were conducted using 21 four-week-old C57BL/6JGpt mice, randomly divided into three groups( n=7 per group): a normal control group, a high-fat diet(HFD) control grooup, and a ManNAc treatment group(400 mg·kg -1·d -1). The intervention lasted for 20 weeks. Body weight, food intake, and fasting blood glucose levels were monitored weekly. Glucose tolerance tests(GTT), insulin sensitivity tests(ITT), and respiratory metabolism monitoring were performed in the 17th, 18th, and 19th weeks, respectively. At the end of the experiment, whole-body fat distribution was assessed, and serum lipid profiles were measured. Liver and adipose tissue weights were recorded, and histological analyses including HE staining of liver, adipose and pancreatic tissues were performed. Liver transcriptome sequencing and quantitative real-time PCR(qPCR) were conducted to evaluate hepatic gene expression. In vitro, a hepatic steatosis model was established by inducing HepG2 cell with 0.4 mmol/L oleic acid, followed by treatment with 500 μg/mL ManNAc. Lipid accumulation was assessed using BODIPY staining, and the expression of lipid metabolism-related genes was quantified by qPCR. Results:ManNAc administration attenuated HFD-induced weight gain, reduced total body fat volume, and decreased liver and adipose tissue weights as well as intracellular lipid accumulation. Pancreatic islet numbers increased, while fasting blood glucose levels, glucose tolerance, and insulin sensitivity significantly improved. Serum levels of triglycerides, total cholesterol, and low-density lipoprotein levels were decreased, accompanied by enhanced energy expenditure. Additionally, hepatic expression of Cd36, Fabp3, and Scd1 was downregulated. In vitro, ManNAc significantly reduced lipid accumulation in HepG2 cells and downregulated the expression of Cd36, Fabp3, and Scd1 genes.Conclusion:ManNAc may improve glucose and lipid metabolism by modulating the PPARs-mediated fatty acid metabolic pathway, reducing lipogenesis, promoting fatty acid oxidation and energy expenditure, and enhancing insulin sensitivity, ultimately ameliorating disorders in obese mice.
4.The value of MRI three-dimensional fat suppression fast spoiled gradient echo sequence in preoperative evaluation of children with congenital radial polydactyly
Jie LI ; Yingyu JIA ; Quan YUN ; Deming BAI ; Qianqian WANG ; Shuming XU ; Huimiao SUN ; Jiangtao LONG
Chinese Journal of Plastic Surgery 2025;41(11):1143-1151
Objective:To explore the clinical value of the three-dimensional fat suppression fast spoiled gradient echo (3D-FS-FSPGR) MRI sequence in the preoperative evaluation of congenital radial polydactyly.Methods:The data of children with congenital radial polydactyly who underwent surgical treatment in the Department of Orthopedics at Shanxi Children’s Hospital from May 2021 to April 2022 were retrospectively analyzed. Preoperative X-ray examinations and MRI 3D-FS-FSPGR sequence scans were performed on the children. Radiologists first described the morphological characteristics of the articular cartilage, and then orthopedic surgeons performed the Wassel classification based on the X-ray and MRI imaging result, focusing on the bifurcation level, morphology, and articular surface of the phalangeal and metacarpal cartilage. The corresponding surgical method was selected according to the Wassel classification, and intraoperative incision exploration was used as the gold standard. Six months after surgery, the surgical outcome was evaluated using the modified Tada scoring system [with a total score of 0-7, and classified as excellent: >5 points, good: 3-5 points, and poor: <3 points; the excellent and good rate = (excellent + good) cases/total number of cases × 100%]. The appearance, function and recurrence of the operated finger were evaluated 1 year after surgery. Descriptive statistics were performed using SPSS 26.0 software, and the Kappa coefficient was used to evaluate the consistency of the Wassel classification result between radiographs, MRI 3D-FS-FSPGR sequences and intraoperative exploration respectively.Results:A total of 45 children (55 fingers) with congenital radial polydactyly were enrolled, including 25 males and 20 females, aged 5 to 60 months, with the median age of 9 months. Unilateral findings were seen in 35 cases and bilateral findings in 10 cases. MRI 3D-FS-FSPGR imaging sequences clearly demonstrated the level of cartilage bifurcation and bone tissue growth and development, which were consistent with intraoperative exploration findings. The accuracy of the MRI 3D-FS-FSPGR Wassel classification was 100% (55/55), and the accuracy of the X-ray Wassel classification was 81.8% (45/55). Disagreements were found in the classifications of five fingers: three with X-ray classifications of Wassel type Ⅳ but actually classified as type Ⅲ, and two with X-ray classifications of Wassel type Ⅳ but actually classified as type Ⅴ. The Kappa coefficients were all >0.85. All patients were followed up for 1 year. The modified Tada score showed excellent in 41 fingers, good in 6 fingers, and poor in 8 fingers, for an excellent and good rate of 85.5% (47/55). At final follow-up, the reconstructed thumbs showed significant improvement in appearance, with normal bone axis restoration, no deviation of the digits, and normal nail appearance. There was no significant scarring or contracture. Functions of thumb flexion, extension, grasping, and opposition were good. There was no postoperative deformity or recurrence.Conclusion:MRI 3D-FS-FSPGR sequences can accurately classify congenital radial polydactyly preoperatively, optimize the surgical incision and osteotomy alignment, and achieve excellent surgical outcomes.
5.Summary of the best evidence for preventing unplanned readmission in elderly patients with ischemic stroke
Zhanghui GUO ; Chao SUN ; Hong GUO ; Huixiu HU ; Yu DUAN ; Yingyu CHEN
Chinese Journal of Modern Nursing 2025;31(12):1590-1598
Objective:To evaluate and integrate the evidence related to the prevention of unplanned readmission in elderly patients with ischemic stroke.Methods:A computerized search was conducted on various guideline websites and databases for clinical decisions, best practices, guidelines, evidence summaries, systematic reviews, and expert consensuses regarding the prevention of unplanned readmission in elderly patients with ischemic stroke. The search period was from the establishment of the databases to August 31, 2024. The literature quality evaluation criteria of the Joanna Briggs Institute Evidence-Based Health Care Centre and so on were used to evaluate the quality of different types of studies.Results:A total of 25 articles were included, consisting of one clinical decision, nine guidelines, six evidence summaries, eight systematic reviews, and one expert consensus. Evidence was integrated from two themes: discharge planning services (including five dimensions: principles, preliminary assessment, comprehensive assessment, plan formulation and implementation, tracking and evaluation) and early functional rehabilitation (including four dimensions: rehabilitation time, rehabilitation plan, rehabilitation intensity, and functional rehabilitation) , forming 39 pieces of best evidence.Conclusions:This study provides an evidence-based basis for the clinical nursing practice of preventing unplanned readmission in elderly patients with ischemic stroke. Evidence users need to select the best evidence according to the clinical reality to promote the smooth transition of patients and reduce the readmission rate.
6.The value of MRI three-dimensional fat suppression fast spoiled gradient echo sequence in preoperative evaluation of children with congenital radial polydactyly
Jie LI ; Yingyu JIA ; Quan YUN ; Deming BAI ; Qianqian WANG ; Shuming XU ; Huimiao SUN ; Jiangtao LONG
Chinese Journal of Plastic Surgery 2025;41(11):1143-1151
Objective:To explore the clinical value of the three-dimensional fat suppression fast spoiled gradient echo (3D-FS-FSPGR) MRI sequence in the preoperative evaluation of congenital radial polydactyly.Methods:The data of children with congenital radial polydactyly who underwent surgical treatment in the Department of Orthopedics at Shanxi Children’s Hospital from May 2021 to April 2022 were retrospectively analyzed. Preoperative X-ray examinations and MRI 3D-FS-FSPGR sequence scans were performed on the children. Radiologists first described the morphological characteristics of the articular cartilage, and then orthopedic surgeons performed the Wassel classification based on the X-ray and MRI imaging result, focusing on the bifurcation level, morphology, and articular surface of the phalangeal and metacarpal cartilage. The corresponding surgical method was selected according to the Wassel classification, and intraoperative incision exploration was used as the gold standard. Six months after surgery, the surgical outcome was evaluated using the modified Tada scoring system [with a total score of 0-7, and classified as excellent: >5 points, good: 3-5 points, and poor: <3 points; the excellent and good rate = (excellent + good) cases/total number of cases × 100%]. The appearance, function and recurrence of the operated finger were evaluated 1 year after surgery. Descriptive statistics were performed using SPSS 26.0 software, and the Kappa coefficient was used to evaluate the consistency of the Wassel classification result between radiographs, MRI 3D-FS-FSPGR sequences and intraoperative exploration respectively.Results:A total of 45 children (55 fingers) with congenital radial polydactyly were enrolled, including 25 males and 20 females, aged 5 to 60 months, with the median age of 9 months. Unilateral findings were seen in 35 cases and bilateral findings in 10 cases. MRI 3D-FS-FSPGR imaging sequences clearly demonstrated the level of cartilage bifurcation and bone tissue growth and development, which were consistent with intraoperative exploration findings. The accuracy of the MRI 3D-FS-FSPGR Wassel classification was 100% (55/55), and the accuracy of the X-ray Wassel classification was 81.8% (45/55). Disagreements were found in the classifications of five fingers: three with X-ray classifications of Wassel type Ⅳ but actually classified as type Ⅲ, and two with X-ray classifications of Wassel type Ⅳ but actually classified as type Ⅴ. The Kappa coefficients were all >0.85. All patients were followed up for 1 year. The modified Tada score showed excellent in 41 fingers, good in 6 fingers, and poor in 8 fingers, for an excellent and good rate of 85.5% (47/55). At final follow-up, the reconstructed thumbs showed significant improvement in appearance, with normal bone axis restoration, no deviation of the digits, and normal nail appearance. There was no significant scarring or contracture. Functions of thumb flexion, extension, grasping, and opposition were good. There was no postoperative deformity or recurrence.Conclusion:MRI 3D-FS-FSPGR sequences can accurately classify congenital radial polydactyly preoperatively, optimize the surgical incision and osteotomy alignment, and achieve excellent surgical outcomes.
7.Summary of the best evidence for preventing unplanned readmission in elderly patients with ischemic stroke
Zhanghui GUO ; Chao SUN ; Hong GUO ; Huixiu HU ; Yu DUAN ; Yingyu CHEN
Chinese Journal of Modern Nursing 2025;31(12):1590-1598
Objective:To evaluate and integrate the evidence related to the prevention of unplanned readmission in elderly patients with ischemic stroke.Methods:A computerized search was conducted on various guideline websites and databases for clinical decisions, best practices, guidelines, evidence summaries, systematic reviews, and expert consensuses regarding the prevention of unplanned readmission in elderly patients with ischemic stroke. The search period was from the establishment of the databases to August 31, 2024. The literature quality evaluation criteria of the Joanna Briggs Institute Evidence-Based Health Care Centre and so on were used to evaluate the quality of different types of studies.Results:A total of 25 articles were included, consisting of one clinical decision, nine guidelines, six evidence summaries, eight systematic reviews, and one expert consensus. Evidence was integrated from two themes: discharge planning services (including five dimensions: principles, preliminary assessment, comprehensive assessment, plan formulation and implementation, tracking and evaluation) and early functional rehabilitation (including four dimensions: rehabilitation time, rehabilitation plan, rehabilitation intensity, and functional rehabilitation) , forming 39 pieces of best evidence.Conclusions:This study provides an evidence-based basis for the clinical nursing practice of preventing unplanned readmission in elderly patients with ischemic stroke. Evidence users need to select the best evidence according to the clinical reality to promote the smooth transition of patients and reduce the readmission rate.
8.ManNAc improves glucose and lipid metabolic disorders in high-fat diet-induced obese mice
Xiangxue KONG ; Dan LI ; Jiangwei XU ; Ju YANG ; Yingyu WANG ; Jiai YAN ; Jing SUN ; Hong CAO
Chinese Journal of Endocrinology and Metabolism 2025;41(5):401-410
Objective:To investigate the ameliorative effects of N-acetyl-D-mannosamine(ManNAc) on glucose and lipid metabolic disorders in obese mice.Methods:In vivo experiments were conducted using 21 four-week-old C57BL/6JGpt mice, randomly divided into three groups( n=7 per group): a normal control group, a high-fat diet(HFD) control grooup, and a ManNAc treatment group(400 mg·kg -1·d -1). The intervention lasted for 20 weeks. Body weight, food intake, and fasting blood glucose levels were monitored weekly. Glucose tolerance tests(GTT), insulin sensitivity tests(ITT), and respiratory metabolism monitoring were performed in the 17th, 18th, and 19th weeks, respectively. At the end of the experiment, whole-body fat distribution was assessed, and serum lipid profiles were measured. Liver and adipose tissue weights were recorded, and histological analyses including HE staining of liver, adipose and pancreatic tissues were performed. Liver transcriptome sequencing and quantitative real-time PCR(qPCR) were conducted to evaluate hepatic gene expression. In vitro, a hepatic steatosis model was established by inducing HepG2 cell with 0.4 mmol/L oleic acid, followed by treatment with 500 μg/mL ManNAc. Lipid accumulation was assessed using BODIPY staining, and the expression of lipid metabolism-related genes was quantified by qPCR. Results:ManNAc administration attenuated HFD-induced weight gain, reduced total body fat volume, and decreased liver and adipose tissue weights as well as intracellular lipid accumulation. Pancreatic islet numbers increased, while fasting blood glucose levels, glucose tolerance, and insulin sensitivity significantly improved. Serum levels of triglycerides, total cholesterol, and low-density lipoprotein levels were decreased, accompanied by enhanced energy expenditure. Additionally, hepatic expression of Cd36, Fabp3, and Scd1 was downregulated. In vitro, ManNAc significantly reduced lipid accumulation in HepG2 cells and downregulated the expression of Cd36, Fabp3, and Scd1 genes.Conclusion:ManNAc may improve glucose and lipid metabolism by modulating the PPARs-mediated fatty acid metabolic pathway, reducing lipogenesis, promoting fatty acid oxidation and energy expenditure, and enhancing insulin sensitivity, ultimately ameliorating disorders in obese mice.
9.Comparison of surveillance efficacy between black box and light trap methods
Yingyu YANG ; Chunwei SUN ; Jiang ZHU
Shanghai Journal of Preventive Medicine 2024;36(7):697-700
ObjectiveTo evaluate the field mosquito surveillance efficacy between the black box method and the light trap method. MethodsEight light traps and eight black boxes were placed in each of the eight field sites in Baoshan District of Shanghai, with a minimum distance of 10 meters between each traps. Surveillance was conducted twice a month from May to September 2023. ResultsThe total number of mosquitoes (273) and female mosquitoes (228) captured by the black box method were 0.795 and 0.774 times higher than those caught by the light trap method, respectively. There was no statistically significant difference (P>0.05) between the mosquito density (t=1.723 5, P=0.100 2) and the female mosquito density (t=1.805 9, P=0.101 1), and there was a correlation (P<0.001) between the mosquito density (r=0.942 7) and the female mosquito density (r=0.896 5). There were no significant differences in the composition ratio of mosquito species(χ2=0.100 1, P>0.05) and female mosquitoes(χ2=0.394 4, P>0.05) captured by black box and light trap methods. In four different habitats, the composition ratios of mosquito species captured by the black box and light trap methods were: hospitals (38.10% and 38.77%) > rural housing areas (36.26% and 37.61%) > parks (14.65% and 12.54%)> urban housing areas (10.99% and 11.08%), and the composition ratios of female mosquitoes captured by the black box and light trap methods were: rural housing areas (40.35% and 42.52%) > hospitals (37.72% and 36.05%) > parks (13.16% and 13.27%) > urban housing areas (8.77% and 8.16%). In different habitats, there was no significant difference in the composition ratio of mosquitoes captured by two monitoring methods(χ2=0.5987, P>0.05), and there was no significant difference in the composition ratio of female mosquitoes(χ2=0.2993, P>0.05). ConclusionWith widen application and fewer requirements for equipment, operation skills, and use cost the black box method can be interchanged with the light trap method for monitoring mosquito density, especially in disaster areas or remote areas with difficult in having access to electricity.
10.Experience of hospital-to-home transition in stroke patients:a qualitative meta-synthesis
Zhanghui GUO ; Yu DUAN ; Jianni QU ; Meng JIAO ; Yingyu CHEN ; Chao SUN ; Hong GUO
Chinese Journal of Nursing 2024;59(16):2030-2036
Objective To systematically evaluate the real-life experience of stroke patients in the hospital-home transition period,and to provide a reference for better clinical development of transitional nursing practice.Methods We searched PubMed,Web of Science,Embase,CINAHL,Cochrane library,CNKI,Wanfang Data,VIP database,and China Biomedical Literature Database for qualitative studies on the real experience of stroke patients in the hospital-to-home transition period from the establishment of the database to October 2023.The quality of the literature was evaluated using the Joanna Brigg Institute(JBI)Australian Centre for Evidence-Based Health Care Quality Assessment Criteria for Qualitative Research(2016),and the results were integrated using meta-integration methods.Results A total of 14 studies were included,and 48 research results were extracted and 9 categories were summarized.The final synthesis included 3 integrated results:the discharge preparation period was in contradiction;after being discharged from the hospital,life changed dramatically and there was a variety of transition barriers;active response to illness and the experience of self-growth.Conclusion The hospital-home transition period for stroke patients is a critical period for patients'rehabilitation,and medical staff should strengthen the implementation of the transitional discharge plan,strengthen the connection between hospitals and families and communities,pay attention to the psychological experience of patients,so as to help stroke patients achieve a smooth transition from hospital to home.

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