1.Differences in deltamethrin resistance and kdr gene mutation in Culex tritaeniorhynchus population in and outside the Yellow Sea wetland
Xiao-er ZHANG ; Zhi-ming WU ; Ye TIAN ; Qian CUI ; Yu-qian JI ; Huan WANG ; Shu-juan YANG ; Yi-chao ZHAO ; Yu WANG ; Hua-yu YIN ; Yu DING ; Guo-jin YAN ; Min-sen ZHAO ; Shou-gang ZHANG ; Bing-dong SONG ; Hong-na CHEN ; Jian GAO ; Wei-fang YANG ; Yu-fu ZHANG ; Hui LIU ; Hong-liang CHU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):101-107
Objective To gain insights into the biological characteristics of different populations of Culex tritaeniorhynchus within and around the Yellow Sea wetland from the perspective of the occurrence of resistance, we investigated the levels of resistance to deltamethrin and kdr gene mutation in the wetland and its peripheral areas. Methods Specimens were collected from Cx. tritaeniorhynchus populations at two monitoring sites in the Rare Bird National Nature Reserve and Tiaozi Ni Wetland Scenic Area, and also from two populations in Yancheng City and the Liuhe District of Nanjing, and the resistance of these mosquitoes to deltamethrin was determined using the CDC biotest bottle method. For each concentration of deltamethrin assessed, a random subset of exposed specimens was selected for amplification of the kdr gene fragment, followed by Sanger sequencing to identify and analyze resistance-associated mutations. Results The LC50 levels of deltamethrin among mosquitoes from the four populations in Luhe, Yancheng, the Rare Bird National Nature Reserve and the Tiaozi Ni Wetland Scenic Area were 2.048 5, 7.798 2, 3.473 3, and 17.695 5 mg/mL, respectively, with corresponding concentrations of deltamethrin ranging from 0.005 to 5.000,0.050 to 50.000,0.050 to 25.000 and 0.050 to 50.000 mg/mL, respectively. Furthermore, the ranges of the KT50 values were 11.76-107.43, 67.05-216.30,29.77-107.43 and 28.40-329.51 min; the 1-h knockdown rates were 34.58%-99.15%, 9.52%-43.80%, 55.09%-73.01%, and 10.09%-68.07%; and the 24-h mortality rates were 12.15%-67.52%,9.52%-79.56%,13.17%-82.21%, and 11.01%-78.99%, respectively. With respect to kdr gene mutation, we assayed a total of 63,70,59, and 57 mosquitoes for the four populations, for which we detected L1014F mutation frequencies of 14.29%, 35.00%, 20.34%, and 31.58%, respectively, with a majority of these mutations being heterozygous for resistance. In addition, five adult mosquitoes were identified has having synonymous mutations at site 1011[i. e. , AAT(asparagine)mutation to AAC(asparagine)]. Conclusions Our findings revealed the clear resistance of Cx. tritaeniorhynchus to deltamethrin in the Yancheng region of the Yellow Sea wetland, and the resistance phenotype and kdr frequency of Cx. tritaeniorhynchus in the wetland environment were comparable to those of Cx. tritaeniorhynchus in the wetland environment, thereby indicating that the resistance of different populations of Cx. tritaeniorhynchus was homogeneous under the pressure of different insecticide selection within and around the wetland. However, the underlying mechanisms need to be further studied.
2.Correlation between Serum Ferritin Levels and the Efficacy of Platelet Transfusion in Patients with Malignant Hematological Diseases
Yi-Yao LI ; Xiao-Yun GAO ; Hang GUAN ; Yu BAI ; Jun-Hui JIA ; Wei BAI ; Yan-Hui DI ; Hua TIAN ; Li-Duo KOU ; Xin-Hua WANG
Journal of Experimental Hematology 2025;33(6):1779-1783
Objective:To explore the correlation between serum ferritin(SF)levels and the efficacy of platelet transfusion in patients with malignant hematological diseases.Methods:Patients with malignant hematological diseases who received repeated transfusions of apheresis platelets in Department of Hematology of Aerospace Center Hospital in 2023 were selected.The platelet corrected count increment(CCI)was used to evaluate the efficacy of platelet transfusion.The correlations between sex,age,disease type,transplantation history,red blood cell transfusion history,and SF level and the efficacy of platelet transfusion were analyzed.Results:A total of 87 patients were included,with a cumulative 326 person-times platelet transfusions.As suggested by one-way analysis of variance,compared with the patients in the age groups of 24-45 years old and 46-66 years old,the patients in the age group of 2-23 years old had a better efficacy of platelet transfusion(P=0.004,P=0.004).There was no significant difference in the efficacy of platelet transfusion between the patients in the age group of 24-45 years old and those in the age group of 46-66 years old(P=0.876).Compared with the patients who had a history of red blood cell transfusion within 3 days,the patients without a history of red blood cell transfusion within 3 days had a better efficacy of platelet transfusion(P<0.001).Compared with the groups with SF levels of 1.44-2.78 ng/L and>2.78 ng/L,the group with SF levels<1.44 ng/L had a better efficacy of platelet transfusion(P=0.028,P<0.001).Compared with the group with SF levels>2.78 ng/L,the group with SF levels of 1.44-2.78 ng/L had a better efficacy of platelet transfusion(P=0.001).After adjusting for age and the history of red blood cell transfusion,the transfusion efficacy of the group with SF levels<1.44 ng/L was better than that of the groups with SF levels of 1.44-2.78 ng/L and>2.78 ng/L(P=0.021,P<0.001);Compared with the group with SF levels>2.78 ng/L,the group with SF levels of 1.44-2.78 ng/L had a better efficacy of platelet transfusion(P=0.001).Both univariate and multivariate linear regression models showed that SF levels were negatively correlated with the efficacy of platelet transfusion(P<0.001).Conclusion:There is a negative correlation between SF levels and the efficacy of platelet transfusion in patients with malignant hematological diseases.Detection of SF levels may provide guidance for predicting the efficacy of platelet transfusion.
3.Recombinase polymerase amplification combined with a lateral flow dipstick for rapid and visual detection of Plasmodium vivax
Shi-hui LI ; Chun-hua GAO ; Fu-rong WEI ; Duo-quan WANG ; Xiao-kai JIA ; Jing ZHANG ; Ying WANG ; Feng SHI
Chinese Journal of Zoonoses 2025;41(4):413-418
To achieve rapid and visual detection of Plasmodium vivax,a detection method based on recombinase polymerase amplification(RPA)technology and lateral flow dipstick(LFD)was established and evaluated.Targeting the conserved sequence of the P.vivax 18S rRNA gene(GenBank:DQ660817.1)as the target sequence,primers and probes were designed with Primer Premier 5,and the P.vivax recombinant plasmid(pUCPv)was constructed as the standard.A sensitive and specific RPA-LFD-based rapid visual detection method for P.vivax nucleic acids was established.The plasmid standard was serially diluted 10-fold to concentrations of 1×103,1×102,1×101,1×10?,and 1×10?1 copies/μL for sensitivity testing.To evaluate specificity,whole blood DNA samples from patients infected with Plasmodium falciparum,Plasmodium malariae,Plasmodium ovale,or Leishmania donovani,as well as healthy participants,were tested by RPA-LFD.Additionally,The assay′s accuracy was evaluated by testing whole blood DNA samples from 24 confirmed P.vivax-infected patients.This study successfully established a sensitive,specific,and rapid visual RPA-LFD method for detecting P.vivax nucleic acids.The assay can complete P.vivax detection within 20 minutes under isothermal conditions at 39 ℃,achieving a sensitivity of 1 copy/μL.There is no significant cross reaction with parasites such as other Plasmodium species and L.donovani,and the specificity is 100%.All 24 DNA samples from confirmed P.vivax patients were detected,showing a 100%detection rate.The developed RPA-LFD assay exhibits excellent sensitivity and specificity,requires only simple heating equipment,and is user-friendly.This rapid visual detection method is particularly suitable for P.vivax screening in low-resource settings.
4.Research progress on mechanism of action of selective phosphodiesterase inhibitors in prevention and treatment of inflammatory bowel disease
Na GAO ; Yu WANG ; Zhen-hua LIU ; Wei-min YANG ; Chuang XIAO
Chinese Pharmacological Bulletin 2025;41(10):1813-1817
Inflammatory bowel disease(IBD)is a common di-gestive system disease with an increasing morbidity year by year.Its pathological mechanisms have not been fully clarified,and there are currently no ideal or effective curative methods.Phos-phodiesterase(PDE)can regulate intracellular cAMP/cGMP levels to mediate downstream signaling pathways,participating in various pathophysiological processes.In recent years,the po-tential efficacy of PDE inhibitors in the treatment of IBD has gradually attracted attention.This article reviews the pharmaco-logical effects and mechanisms of selective PDE subtype inhibi-tors in the prevention and treatment of IBD,providing references for further research of IBD therapeutic drugs.
5.circHERC4_041 Inhibits the Fibrotic Phenotype of Cardiac Fibroblasts by Encoding Protein
Yuan GAO ; Chuan-Meng ZHOU ; Hua-Yan WU ; Ya WANG ; Ru-Shi WU ; Pei-Ying GUAN ; Jun-Tao FANG ; Jin-Dong XU ; Yu-Peng LIU ; Zhi-Qin HU ; Zhi-Xin SHAN
Chinese Journal of Biochemistry and Molecular Biology 2025;41(3):393-403
A mounting body of research suggests that circRNAs significantly contribute to the develop-ment of myocardial fibrosis.The microarray results of human circular RNA expression profile indicated that circHERC4_041 expression increased in the myocardium of patients with heart failure,RT-qPCR a-nalysis confirmed that the myocardial expression level of circHERC4_041 in individuals with heart failure were considerably elevated compared to that in healthy organ donors.Fluorescence in situ hybridization(FISH)confirmed that circHERC4_041 was abundant in the cytoplasm of human cardiomyocyte AC16.Overexpression of circHERC4_041 in mouse myocardial fibroblasts(mCFs)mediated by adenovirus in-hibited the expression of fibrosis-related proteins in mCFs.Experiments involving cell proliferation,wound healing,and Transwell assays demonstrated that overexpression of circHERC4_041 suppressed the growth and mobility of mCFs(P<0.001).Sequence analysis results suggested that circHERC4_041 con-tains potential ribosome entry sequence(IRES)and open reading frame(ORF).Western blot confirmed that circHERC4_041 could translate the 516 amino acid HERC4-516aa protein,which was mainly located in the cytoplasm of the cell.Cell functional experiments confirmed that circHERC4_041 inhibited the fi-brotic phenotype of mCFs by specifically translating HERC4-516aa(P<0.05).The specific interaction between HERC4-516aa and transglutaminase 2(TGM2)was confirmed by IP-MS screening and Co-IP i-dentification.Further results found that the degradation of TGM2 was promoted through proteasome path-way.The overexpression of TGM2 in mCFs facilitated by adenoviral vectors could counteract the suppres-sive effects of HERC4-516aa on the fibrotic phenotype of mCFs.Therefore,this study confirmed that the HERC4-516aa protein translated by circHERC4_041 can specifically bind to TGM2 to inhibit the fibrotic phenotype of myocardial fibroblasts.
6.Analysis of the epidemic characteristics of notifiable infectious diseases in Xindu district,Chengdu from 2008 to 2022
Xianghuan LIU ; Min WANG ; Hua LIU ; Min GAO
Journal of Capital Medical University 2025;46(2):363-373
Objective To analyze the epidemic trend and characteristics of notifiable infectious diseases in Xindu District of Chengdu,and to explore the changes of disease spectrum,so as to provide scientific basis for formulating prevention and control strategies.Methods The epidemic data of notifiable infectious diseases in Xindu District of Chengdu from 2008 to 2022 were collected and analyzed by descriptive epidemiological method.Results From 2008 to 2022,a total of 66 302 cases of 28 kinds of notifiable infectious diseases were reported in Xindu District of Chengdu,with an average annual reported incidence of 516.94/100 000.A total of 266 deaths were reported,with an average annual mortality rate of 2.07/100 000 and a case fatality rate of 0.40% .No Class A infectious diseases were reported,and Class B infectious diseases had no obvious seasonality.Class C infectious diseases had two incidence peaks from June to August and from October to December.The sex ratio of male to female was 1.41∶1,and the age of onset was mostly 0-4 years old.The reported cases were mainly scattered children,preschool children,students,farmers,housework and unemployed people.According to the main mode of transmission,the annual average reported incidence rate from high to low was intestinal infectious diseases,respiratory infectious diseases,blood and sexually transmitted infectious diseases,insect-borne and natural focal infectious diseases,and other infectious diseases.The mode of transmission gradually transitioned from intestinal infectious diseases to respiratory infectious diseases.From 2020 to 2022,except for COVID-19 and influenza cases,the reported incidence of infectious diseases in other transmission routes decreased.The reported diseases were mainly concentrated in tuberculosis,hepatitis B,syphilis,mumps,hand-foot-mouth disease,influenza and other infectious diarrhea,and the annual reported incidence order changed slightly.Conclusion From 2008 to 2022,the reported incidence of Class B infectious diseases in Xindu District of Chengdu showed a steady decline,while the reported incidence of Class C infectious diseases showed a fluctuating upward trend.The prevention and control measures of the new coronavirus epidemic are conducive to reducing the incidence of notifiable infectious diseases.It is necessary to focus on the prevention and control of high-risk infectious diseases such as hand-foot-mouth disease,influenza,other infectious diarrhea,tuberculosis,hepatitis B,and acquired immune deficiency syndrome,with highly reported mortality.Targeted health interventions should be carried out for key populations,key seasons,and key areas.At the same time,the monitoring of new and rare infectious diseases should be strengthened.
7.Analysis of related factors and comparison of prediction models for readmission of patients with mood disorder
Feng XU ; Peixia CHENG ; Qian WANG ; Hua FAN ; Qi GAO
Chinese Mental Health Journal 2025;39(4):293-300
Objective:To analysis the influenced factors of readmission in hospital among patients with mood disorder,construct predictive models and compare the predictive performance of the models.Methods:The electron-ic medical record data of patients with mood disorder admitted to Beijing Anding Hospital from January 2010 to De-cember 2018 were retrospectively collected.Utilizing stepwise logistic regression to analyze the related factors of re-admission in patients with mood disorder.Logistic regression,support vector machine,random forest,extreme gradi-ent boosting(XGBoost)algorithms and convolutional neural networks(CNN)were used to construct a readmission prediction model and compare the predictive performances of the different models by using the accuracy,precision,recall,et.al.Results:A total of 6 234 patients with mood disorder were enrolled,24.9%(n=1 549)patients were readmitted after discharge.The stepwise logistic regression results revealed that readmissions were more likely to occur in patients with mood disorder who were female,had comorbidities,had a treatment outcome of cure,were treated with MECT and were on second-generation antipsychotics(OR=1.26,1.68,1.26,1.35,1.18).The CNN model demonstrated the highest accuracy,precision,and F1 scores,all at 0.87,with a recall of 0.86.The random forest achieved a recall of 0.86 and an AUC of 0.95.Conclusion:Readmission of patients with mood disorder is influenced by a multitude of factors.The convolutional neural networks and random forest models outperform other models in prediction.
8.Recombinase polymerase amplification combined with a lateral flow dipstick for rapid and visual detection of Plasmodium vivax
Shi-hui LI ; Chun-hua GAO ; Fu-rong WEI ; Duo-quan WANG ; Xiao-kai JIA ; Jing ZHANG ; Ying WANG ; Feng SHI
Chinese Journal of Zoonoses 2025;41(4):413-418
To achieve rapid and visual detection of Plasmodium vivax,a detection method based on recombinase polymerase amplification(RPA)technology and lateral flow dipstick(LFD)was established and evaluated.Targeting the conserved sequence of the P.vivax 18S rRNA gene(GenBank:DQ660817.1)as the target sequence,primers and probes were designed with Primer Premier 5,and the P.vivax recombinant plasmid(pUCPv)was constructed as the standard.A sensitive and specific RPA-LFD-based rapid visual detection method for P.vivax nucleic acids was established.The plasmid standard was serially diluted 10-fold to concentrations of 1×103,1×102,1×101,1×10?,and 1×10?1 copies/μL for sensitivity testing.To evaluate specificity,whole blood DNA samples from patients infected with Plasmodium falciparum,Plasmodium malariae,Plasmodium ovale,or Leishmania donovani,as well as healthy participants,were tested by RPA-LFD.Additionally,The assay′s accuracy was evaluated by testing whole blood DNA samples from 24 confirmed P.vivax-infected patients.This study successfully established a sensitive,specific,and rapid visual RPA-LFD method for detecting P.vivax nucleic acids.The assay can complete P.vivax detection within 20 minutes under isothermal conditions at 39 ℃,achieving a sensitivity of 1 copy/μL.There is no significant cross reaction with parasites such as other Plasmodium species and L.donovani,and the specificity is 100%.All 24 DNA samples from confirmed P.vivax patients were detected,showing a 100%detection rate.The developed RPA-LFD assay exhibits excellent sensitivity and specificity,requires only simple heating equipment,and is user-friendly.This rapid visual detection method is particularly suitable for P.vivax screening in low-resource settings.
9.Whole exome sequencing identified new candidate genes for prostate cancer
Youjie GONG ; Na YU ; Qing CHEN ; Xinyan YANG ; Sizheng TAO ; Jing SHEN ; Yan HUANG ; Zhihou MA ; Jie GAO ; Haoming HUA ; Hongqun WANG
Chinese Journal of Clinical and Experimental Pathology 2025;41(10):1345-1351
Purpose Discover new prostate cancer-related single nucleotide variants.Methods Tissue wax blocks from 21 prostate cancer patients who underwent radical surgery and had relatively complete clinical data were collected for somatic mutation detection to analyze new mutated genes associated with prostate cancer.The levels of cor-responding proteins in the urine of prostate cancer patients were tested according to the results of the selected genes.Results All 21 prostate cancer patients showed obvious somatic mutations,and the mutation types were dominated by C>T and G>A.The number of somatic mutations was 521,of which 27 genes had high mutation proportions(≥2 ca-ses),including ZSWIM6(5/21),FOXA1(4/21),SPTA1(2/21),FAM47C(2/21),FLG2(2/21),PRSS3(2/21),TP53(2/21),FLG(2/21),UBR4(2/21),and the mutations occurring in ZSWIM6 were all deletion muta-tions,and the mutations occurring in FOXA1 were missense mutations,deletion mutations,and deletion insertion mu-tations.The urinary levels of UPF1,SPTA1,and IDH1 proteins of the 10 prostate cancer patients were significantly different than those of the healthy controls.Correlation analysis showed that FOXA1 was positively correlated with UBR4(r=0.669,P=0.001),SPTA1 was positively correlated with FLG2(r=1.000,P<0.001),FAM47C was positively correlated with PRSS3(r=1.000,P<0.001),and there was a significant positive correlation between TP53 and FLG(r=1.000,P<0.001).ZSWIM6 and FOXA1 were not correlated with biochemical recurrence.SP-TA1 mutation affected progression-free survival(PFS)[(66.0±0)months vs(30.0±7.8)months,P=0.008].FAM47C was positively correlated with PFS[(66.0±0)months vs(19.0±0)months,P<0.001].ZNF676 was correlated with PFS[(66.0±0)months vs(26.0±5.0)months,P=0.008].FLG2 was correlated with PFS[(66.0±0)months vs(30.0±7.8)months,P=0.008].PRSS3 was correlated with PFS[(66.0±0)months vs(19.0±0)months,P<0.001].Conclusion All 21 prostate cancer patients harbored somatic mutations,including ZSWIM6(5/21)and FOXA1(4/21)mutations.SPTA1,FAM47C,ZNF676,FLG2,and PRSS3 may be associated with prognosis.
10.Effect of subanesthetic dose of esketamine on emergence agitation in patients undergoing laparoscopic her-nia repair
Qiuyun WANG ; Mingcheng LI ; Huiyun GU ; Na TA ; Lige QI ; Lidong ZHU ; Jing GAO ; Xing-hua CAO
The Journal of Practical Medicine 2025;41(17):2728-2733
Objective To investigate the effect of subanesthetic dose of esketamine on emergence agitation(EA)in patients undergoing laparoscopic hernia repair.Methods Seventy-two male patients who treated with lapa-roscopic hernia repair under general anesthesia were randomly divided into AS group(subanesthetic esketamine)and control group.In the AS group,0.2 mg/kg of esketamine was administered intravenously 30 minutes before the surgery ended,while the control group was given an equal volume of normal saline.Upon surgery completion,patients were transferred to PACU with endotracheal tube retained,and the time to extubation was recorded.Hemo-dynamic parameters were measured immediately after extubation and at 10 min,30 min,1 h,and 4 h thereafter.Patients' pain and sedation levels were assessed at the above time points using RASS and VAS,respectively.The incidence of EA was evaluated using the Confusion Assessment Method for the Intensive Care Unit(CAM-ICU).Observation duration in the PACU and recovery outcomes within 24 hours postoperatively were assessed via the QoR-40 and adverse events were recorded.Results Compared to those in the control group,patients in the AS group had higher HR and MAP at 10 min post-extubation,and the changes in HR and MAP over time were more stable(P<0.05).The RASS and VAS scores in the AS group were significantly lower than those in the control group at the time of extubation and all subsequent time points(P<0.05),both groups showed temporal changes in RASS and VAS scores(P<0.05),but the change process in the AS group was more stable(P<0.05).Postoperative extubation time,PACU observation duration,and adverse event rates(delirium,respiratory depression,nausea and vomiting)did not differ significantly between the two groups(P>0.05),while recovery quality was markedly better in the AS group(P<0.05).Conclusion Subanesthetic esketamine effectively alleviates pain and the incidence of EA,supports hemodynamic stability during PACU stay,and enhances recovery quality in patients undergoing laparo-scopic hernia repair,demonstrating clinical value.


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