1.Application and data analysis of the cardio-cerebrovascular events monitoring system in Yichang
Zhengchao FANG ; Jiajuan YANG ; Chi HU ; Chan WU ; Yaling DENG ; Zhiying YU ; Jie ZHU ; Ling ZHANG
Journal of Public Health and Preventive Medicine 2025;36(6):95-98
Objective To analyze the monitoring data of cardio-cerebrovascular diseases prevention and control system in Yichang in 2022, and to provide data support and experience for the precise prevention and treatment of cardio-cerebrovascular diseases. Methods Acute cardiovascular and cerebrovascular event data were collected from the Yichang Cardio-cerebrovascular Events Monitoring System from January 1, 2022 to December 31, 2022. Descriptive analysis was conducted for the data collected. Statistical analysis was performed using SPSS 20.0 software, and a chi-square test was used to analyze the count data. Results A total of 37,217 cases of cardio-cerebrovascular events were monitored in Yichang in 2022. The crude incidence and the standardized incidence were 983.84/100,000 and 541.55/100,000, respectively. The incidence in males was higher than females (554.93/100,000 vs 428.91/100,000,χ2 =464.52,P<0.05). The top three diseases were cerebral infarction, acute myocardial infarction, and cerebral hemorrhage. The incidence of events increased with age, and 79.80% of the cases were over 60 years old. The main onset time was from May to August. Conclusion The use of the cardio-cerebrovascular events monitoring system in Yichang and the implementation of “mandatory reporting card” monitoring can timely obtain the epidemic characteristics of the diseases, provide support for the precise formulation of prevention and control strategies and measures, reduce underreporting rates, and improve the monitoring system, which is worthy of reference and promotion.
2.Screening of soil biocontrol bacteria and evaluation of their control effects on Fusarium head blight of wheat.
Dongfang WANG ; Xinxin ZHAI ; Chunlin YANG ; Huilan ZHANG ; Jie WU ; Zerong SONG ; Pan ZHAO ; Yu CHI
Chinese Journal of Biotechnology 2025;41(10):3764-3773
Fusarium head blight (FHB), caused by Fusarium graminearum, not only leads to severe yield losses but also poses a threat to food safety due to the mycotoxins produced by the pathogen. Since this disease is preventable but not curable, the current control mainly relies on chemical fungicides, the long-term use of which may lead to pathogen resistance and environmental pollution. To develop green control methods, we screened 13 biocontrol strains from the rhizosphere soil of wheat, among which strain No. 12 (identified as Pythium aphanidermatum) showed significant antifungal effects. In the plate confrontation test, this strain reduced the colony diameter of the pathogen by 69.2% (1.47 mm vs. 4.78 mm in the control group), with an inhibition rate of 77% (P < 0.01). Microscopic observation revealed obvious deformations in the pathogen hyphae, suggesting a lysing effect. The coleoptile experiment further confirmed that the pre-treatment with this strain reduced the incidence rate to 0. These findings provide new candidate strains for the biocontrol of FHB and offer a scientific basis for reducing the use of chemical fungicides and promoting sustainable agricultural development.
Triticum/growth & development*
;
Fusarium/growth & development*
;
Plant Diseases/prevention & control*
;
Soil Microbiology
;
Pest Control, Biological/methods*
;
Pythium/physiology*
;
Biological Control Agents
;
Rhizosphere
;
Fungicides, Industrial
3.Accumulated Effects of 24 Hours Physical Activity,Sedentary Behavior,and Sleep on Cardiorespiratory Fitness in College Students.
Yun-Feng SONG ; Chi XU ; Kai-Xin LI ; Si-Jie TAN ; Yu-Gang QI
Acta Academiae Medicinae Sinicae 2025;47(2):155-163
Objective To explore the accumulated effects of physical activity,sedentary behavior,and sleep on cardiorespiratory fitness(CRF)among college students and provide effective measures for enhancing their CRF. Methods From May to June in 2023,223 college students aged 18 to 24 years old were recruited from Tianjin University of Science and Technology for a 24 hours activity behavior survey and CRF testing.Compositional analysis was employed to investigate the relationships of physical activity,sedentary behavior,and sleep with CRF.Isotemporal substitution models were established to predict the effects of substituting various activity behaviors on CRF.Results The proportion of time spent on moderate-to-vigorous physical activity(MVPA)was positively correlated with CRF of college students(β=6.40,P=0.002),while the proportion of time spent on sedentary behavior was negatively correlated with CRF(β=-3.02,P=0.004).Light physical activity(LPA)and sleep were not correlated with CRF(β=-1.06,P=0.504).Isotemporal substitution results for 15-min increments showed that replacing other activity behaviors with MVPA significantly increased the CRF of college students[SB:1.72 mL/(kg·min),95% CI=0.94-2.51;LPA:1.82 mL/(kg·min),95% CI=0.95-2.68;sleep:1.64 mL/(kg·min),95% CI=0.84-2.45].In the dose-response relationship from -30 min to 30 min,reallocating time from other behaviors to MVPA had greater adverse effect on CRF than reallocating time from MVPA to other behaviors.Among all the substitutions,replacing LPA with MVPA had the most beneficial effect on improving CRF.Additionally,a 5-min increment was considered the optimal tipping point for MVPA replacing other activities.Conclusions This study underscores the importance of participating in MVPA for improving the CRF of college students.The isotemporal substitution model provides clear goals for the allocation of time for these behaviors,aiding in future intervention measure development and policy-making.
Humans
;
Sedentary Behavior
;
Sleep
;
Students
;
Cardiorespiratory Fitness
;
Exercise
;
Young Adult
;
Adolescent
;
Universities
;
Male
;
Female
4.Effects of Compositional Isotemporal Substitutions of 24 Hours Activity Behaviors on Novel Obesity Indicators in College Students.
Yun-Feng SONG ; Chi XU ; Si-Jie TAN ; Yu-Gang QI
Acta Academiae Medicinae Sinicae 2025;47(2):164-174
Objective To explore the effects of time reallocation among moderate-to-vigorous physical activity(MVPA),light physical activity(LPA),sedentary behavior(SB),and sleep on a body shape index(ABSI),body roundness index(BRI),conicity index(CI),and relative fat mass(RFM)of college students by the compositional isotemporal substitution method,thus providing measures for alleviating the obesity problem of college students. Methods Two hundred and ten college students(111 males and 99 females)aged 18-22 years old were recruited from Tianjin University of Science and Technology from April to June in 2023.Three-dimensional acceleration sensors were used to collect data of MVPA,LPA,SB,and sleep of college students.The body height,body weight,and waist circumference were measured,and four novel obesity indicators(ABSI,BRI,CI,and RFM)were calculated.The effects of substituting each activity behavior for 15 min on the obesity indicators were predicted,and the dose-effect relationship was explored at intervals of 5 min from -30 to 30 min.Results MVPA was negatively correlated with ABSI(β=-0.03,P=0.001),BRI(β=-0.27,P=0.049),CI(β=-0.10,P=0.001),and RFM(β=-9.95,P=0.004).LPA was negatively correlated with CI(β=-0.05,P=0.011)and RFM(β=-8.74,P=0.007).Neither SB nor sleep had correlations with ABSI,BRI,CI,and RFM.The results of 15 min isotemporal substitutions showed that increasing the MVPA time decreased the ABSI,BRI,CI,and RFM by 0.006-0.008,0.306-0.393,0.162-0.205,and 2.468-2.897,respectively.Decreasing the MVPA time increased the ABSI,BRI,CI,and RFM by 0.012-0.014,0.548-0.632,0.286-0.328,and 4.358-4.748,respectively.In the dose-effect relationship from -30 min to 30 min,MVPA was irreplaceable,and the negative benefits from substituting MVPA for other activity behaviors were much greater than the positive benefits from substituting MVPA for other activity behaviors.Conclusions Future research should take 24 hours activity behaviors as a whole.Increasing the time spent on MVPA and LPA and decreasing the time spent on SB is one of the effective ways to alleviate the obesity problem among college students.
Humans
;
Male
;
Students
;
Female
;
Young Adult
;
Obesity
;
Sleep
;
Adolescent
;
Exercise
;
Universities
;
Sedentary Behavior
;
Body Mass Index
;
Body Weight
5.Mapping Dissolved Gases Distribution in Lake Water Using Shipborne Membrane Inlet Mass Spectrometry
Han WANG ; Chang-Jie LIU ; Hai-Yun SONG ; You-Jiang LIU ; Chi-Lai CHEN
Chinese Journal of Analytical Chemistry 2024;52(7):937-944
As global average carbon dioxide concentrations steadily rise,the frequency,intensity,and duration of cyanobacterial blooms in aquatic ecosystems are increasing annually.This phenomenon presents a significant threat to the overall health of global ecosystems and has garnered worldwide attention.In this study,an online detection of small-molecule dissolved gas concentrations in lake using a home-made membrane inlet mass spectrometer was conducted.Comparative water samples analyses demonstrated that the developed mass spectrometer instrument effectively discriminated between different water samples based on its dissolved gas detection capabilities.Online survey revealed that the concentrations of dissolved O2 and dissolved CO2 were 0.24 mmol/L and 1.31 μmol/L,respectively,in areas without cyanobacterial coverage.In areas with cyanobacterial coverage,their concentrations were 0.21 mmol/L and 0.92 μmol/L,respectively.In areas where cyanobacteria were densely collected,the dissolved CO2 content rose rapidly,while the dissolved O2 content decreased rapidly.This result revealed that large-scale cyanobacterial blooms exacerbated CO2 emissions,and during such blooms,lakes acted as sources of CO2,emitting substantial amounts into the atmosphere,thereby contributing to adverse impacts on global climate change.Furthermore,extensive cyanobacterial blooms led to a rapid decrease in dissolved O2 levels,resulting in O2 depletion and the mortality of fish and benthic invertebrates.The research highlighted the significance of the ratio of content of O2 and CO2 as a crucial indicator for cyanobacterial monitoring,with a smaller ratio indicating higher cyanobacterial content.Moreover,changes in turbidity and variations in the ratio of O2 and CO2 exhibited strong consistency.Large-scale algal blooms increased water turbidity,which posed a threat to the survival of aquatic organisms.This study provided a technological means for online detection of dissolved gases in water,offering essential references for water quality assessment,ecological evaluation,and particularly,for early prevention,mid-term management,and post-treatment effectiveness assessment of cyanobacterial blooms.
6.Research on the method of setting depth thresholds for second generation sequencing of forensic genetic markers-Taking microhaplotypes as an example
Lin HE ; Kelai KANG ; Yaosen FENG ; Jie ZHAO ; Chi ZHANG ; Wenhua MA ; Kunpeng PAN ; Fan CHEN ; Anquan JI ; Le WANG
Chinese Journal of Forensic Medicine 2024;39(5):559-564
Objective Sequencing depth is a key parameter in next generation sequencing,which is closely related to the accuracy of sequencing results.Forensic biological evidence examination requires extremely high accuracy.It is crucial to scientifically and reasonably set the sequencing depth analysis threshold for forensic next generation sequencing testing.Methods This study used targeted sequencing data of microhaplotypes from 50 samples with known genotypes.By calculating the accuracy,precision,recall,and F1 score of each locus under various threshold conditions,two types of analysis threshold setting methods,which were based on fixed read count and fixed sequencing depth ratio,were studied extensively.Results The results showed that false positives were observed when the analysis threshold was set at 50×or 100×.When the analysis threshold was set at 200×,false negatives were observed.When the analysis threshold was set at 1.5%,3.0%,or 4.5%,false positives were observed.This study further proposed a third type of analysis threshold setting method,which was based on sequencing depth ratio scatter plots.With this method,no false positive or false negative was observed in the results.This article then explored four factors that lead to significant differences in the sequencing depth of forensic next generation sequencing experiments,compared with the analysis threshold setting method for capillary electrophoresis technology,and discussed the correlation between analysis thresholds and the ability to distinguish mixed DNA.Conclusion Employing the sequencing depth ratio scatter plot method to set analysis threshold has significant application value in next generation sequencing-based forensic genetic marker genotyping.
7.The Genetic Polymorphism and Structural Analysis of 47 Microhaplotypes in a Jiangsu Changshu Chinese Han Population
Kun-Peng PAN ; Yao-Sen FENG ; Wen-Shuai YU ; Zong-Wei LIU ; Yi-Ren YAO ; Jie ZHAO ; Ke-Lai KANG ; Chi ZHANG ; Le WANG ; Jian WU
Progress in Biochemistry and Biophysics 2024;51(2):423-434
ObjectiveTo investigate the genetic polymorphism and structure of 47 autosomal microhaplotypes in the Han population in Changshu City, Jiangsu Province, and to evaluate the forensic efficiencies and forensic parameters. MethodsThe DNA library of unrelated individual samples was prepared according to MHSeqTyper47 kit manual and sequenced on the MiSeq FGx platform. Microhaplotype genotyping and sequencing depth statistics were processed using MHTyper. The genetic information of samples was then evaluated. The fixation index and genetic distance between the Jiangsu Changshu population and the reference populations in the 1000 Genomes Project phase 3 (1KG) were calculated, and forensic parameters were evaluated. ResultsThe fixation index and genetic distance between the Han population in Changshu, Jiangsu, and the CHB (Han Chinese in Beijing, China) reference population in 1KG were the lowest. The effective allele number (Ae) of each locus is also the closest between the two populations. The combined matching probability (CMP) of the Changshu Han population is close to the 5 populations of the East Asian reference super-population in 1KG, which is 1.25×10-36, and the combined probability of exclusion reached 0.999 999 999 964 1. ConclusionThis study reported the genetic polymorphism and allele frequency of 47 microhaplotypes in a Han population in Changshu City, Jiangsu Province. This information provides a data basis for 47 microhaplotypes in forensic applications. In addition, the polymorphism differences between the 1KG reference population and the Han population in Changshu, Jiangsu were compared, and the genetic structure of 47 microhaplotypes in the Han population in Changshu, Jiangsu was revealed. In general, the reference data of the East Asian super-population in 1KG is more in line with the genetic characteristics of Han population in Changshu, Jiangsu.
8.Retrospective cohort analysis of the relationship between correcting abnormal glucose metabolism and controlling the risk of death of digestive system malignant tumors
Yun FAN ; Jie CHI ; Jinyi FAN ; Yinkun WANG ; Xiao ZHENG
Journal of Public Health and Preventive Medicine 2024;35(4):87-90
Objective To investigate the relationship between correcting abnormal glucose metabolism and mortality risk of malignant tumors of digestive system. Methods A retrospective cohort study was conducted. 1308 patients with abnormal glucose metabolism in our hospital from January 2019 were divided into exposed group (n=777) and non-exposed group (n=531) according to the presence or absence of glucose metabolism correction therapy. The patients were retrospectively followed up until December 2022. The incidence of digestive system tumors and the influencing factors of tumors were compared between the two groups. Results There were 31 patients with digestive system tumor and 9 patients died. The incidence of digestive system tumors was lower in the exposed group (3/777) than in the non-exposed group (28/531). The mortality rate in the exposed group (1/777) was lower than that in the non-exposed group (8/531). Cox regression model analysis showed that correcting abnormal glucose metabolism was a protective factor for the risk of death from malignant tumors of the digestive system in patients (HR value<1, P<0.05) ; increased FBG, combined abnormal lipid metabolism, increased pulse pressure difference, family history of malignant tumors, and alcohol consumption were shown as risk factors for the risk of death from malignant tumors of the digestive system in patients (HR values>1, P<0.05). Conclusion Correcting abnormal glucose metabolism is of positive significance in reducing the risk of death from malignant tumors of digestive system. Patients with increased FBG, abnormal lipid metabolism, increased pulse pressure difference, family history of malignant tumors and alcohol consumption should pay special attention to correct abnormal glucose metabolism in time.
9.Effect of RhoC silencing on migration and invasion of oral squamous cell carcinoma
Jie YANG ; Huan LI ; Xin WANG ; Zhenggang CHEN ; Ying WANG ; Quan LI ; Yingjie HUA ; Jing WANG ; Zengpeng CHI
Chinese Journal of Pathophysiology 2024;40(1):47-57
AIM:To explore the expression of RhoC in oral squamous cell carcinoma(OSCC)and its effects on the malignant biological behavior of OSCC cells.METHODS:The UALCAN and K-M plotter databases,alongside tis-sue sample analyses,facilitated understanding RhoC expression in cancer and its links to clinicopathological traits.Two small interfering RNAs(RhoC-siRNA)were constructed according to the RhoC gene sequence.The mRNA and protein ex-pression levels of RhoC in OSCC cells were determined.The protein levels of FAK,p-FAK,MAPK,p-MAPK,matrix me-talloproteinase-2(MMP-2)and MMP-9 were also examined by Western blot.Furthermore,the invasion and migration of OSCC cells were analyzed by Transwell assay and scratch test.Finally,the pulmonary metastasis model of nude mice was established.RESULTS:The results of the databases showed that RhoC was highly expressed in OSCC tissues,which was closely related to pathological stage,pathological grade and lymph node metastasis,but not significantly related to the sur-vival rate of patients.Furthermore,compared with paracancer tissues,the mRNA and protein expression levels of RhoC were increased in OSCC tissues(P<0.01).Silencing of RhoC prominently reduced the migration and invasion of OSCC cells as well as the protein levels of p-FAK,p-MAPK,MMP2 and MMP9(P<0.05).The protein levels of MAPK and FAK were unchanged(P>0.05).The fluorescence intensity of the experimental group was significantly lower than that of the control group,and the results of HE staining showed that the number of lung nodules in the experimental group was sig-nificantly reduced(P<0.05).CONCLUSION:RhoC can effectively influence the migration and invasion of OSCC cells,and its potential mechanism may be related to FAK/MAPK/MMPs signaling pathway.
10.Evaluating the application efficiency of the MHSeqTyper47 kit in kinship identification
Lishuai TAN ; Xin JIN ; Yaosen FENG ; Kelai KANG ; Wenhua MA ; Mingguang LI ; Chi ZHANG ; Jie ZHAO ; Jian YE ; Le WANG
Chinese Journal of Forensic Medicine 2024;39(1):75-81
Objective To investigate the application value of the MHSeqTyper47 kit in kinship identification.Methods Multiplexed amplification and library preparation were performed for DNA samples from 113 related individuals by using the MHSeqTyper47 kit.The libraries were sequenced on a MiSeq FGx sequencer,and the data were analyzed using MHTyper for microhaplotype genotyping.The kinship indexes were calculated to evaluate the application efficiency of this kit in kinship identification and compared with those of the GlobalFilerTM kit.Results For the MHSeqTyper47 kit,the CPI values in trio identification were 1.43× 1011~6.15×1018.The CPI values in duo identification were 1.02× 105~1.53× 1013.The CFSI values in full sibling identification were 7.73×101~2.59×1016.Trios,duos and full siblings could be completely distinguished from unrelated pairs.The combined efficiency of these two kits in 2nd-degree kinship identification was 0.466 2.Conclusion The application value of MHSeqTyper47 kit is relatively higher in the identification of lst-degree kinships.If jointly used with the GlobalFilerrM kit,2nd-degree kinship identification could be achieved in some cases.


Result Analysis
Print
Save
E-mail