AIM:To investigate the role and mechanism of cell death-inducing DNA fragmentation factor al-pha(DFFA)-like effector B(Cideb)in promoting palmitic acid(PA)-induced lipid deposition in human hepatoblastoma HepG2 cells.METHODS:The HepG2 cells were divided into control group,model group,negative control silencing(siR-NC)group and Cideb silencing(siR-Cideb)group.The cells were treated with PA to establish a cellular model of lipid deposition.Specific siRNAs were used to silence the expression of Cideb,and the intracellular lipid content was mea-sured.Lipid deposition was observed by oil red O staining.RT-qPCR and Western blot were used to detect the expression levels of Cideb,sterol regulatory element-binding protein 1c(SREBP1c),acetyl-CoA carboxylase 1(ACC1),fatty acid synthase(FAS),stearoyl-CoA desaturase 1(SCD1)and AMP-activated protein kinase α(AMPKα)in the cells.The ef-fects of Cideb overexpression on HepG2 cells were observed by transfection with a Cideb eukaryotic expression plasmid.RESULTS:Compared with control group,the cells in PA model group presented lipid deposition,significantly increased triglyceride(TG)and total cholesterol(TC)content,elevated expression levels of Cideb,SREBP1c,ACC,FAS and SCD1,and decreased expression of AMPKα(P＜0.05).Compared with siR-NC group,the cells in siR-Cideb group pre-sented decreased lipid deposition,reduced intracellular TG and TC content,decreased SREBP1c,ACC,FAS and SCD1 expression levels,and increased AMPKα expression(P＜0.05).The overexpression of Cideb increased the lipid deposi-tion,TG and TC content,and the expression levels of SREBP1c,ACC,FAS and SCD1 in HepG2 cells,but decreased the expression of AMPKα(P＜0.05).CONCLUSION:Reduction of Cideb alleviates PA-induced lipid deposition in HepG2 cells by down-regulating the SREBP1c/ACC/FAS/SCD1 pathway and up-regulating the AMPKα pathway.

[Purpose]To analyze the incidence and mortality of malignant tumors in cancer regis-tration areas of Heilongjiang Province in 2019 and the trend from 2013 to 2019.[Methods]The incidence and mortality data of malignant tumors reported by the Heilongjiang provincial cancer registries from 2013 to 2019 were collected,and the quality of data was assessed.The crude in-cidence/mortality rate,age-standardized incidence/mortality rate by Chinese standard population(ASIRC/ASMRC)and world standard population(ASIRW/ASMRW),0～74 years old cumulative rate were calculated.Joinpoint 4.6.0 software was used to calculate the average annual percentage change(AAPC)of ASIRC/ASMRC for the trend analysis from 2013 to 2019.[Results]In 2019,there were 16 732 new cases of malignant tumors in the cancer registration areas of Heilongjiang Province,including 8 639 males and 8 093 females.The crude incidence rate was 295.37/105,with an ASIRC and ASIRW of 167.10/105 and 164.18/105,respectively.There were 10 988 malig-nant tumor deaths,including 6 540 males and 4 448 females.The crude mortality rate was 193.97/105,with an ASMRC and ASMRW of 101.22/105 and 101.66/105,respectively.The inci-dence and mortality of malignant tumors increased rapidly after the age of 55,and the incidence and mortality of males were slightly higher than those of females.The top five malignant tumors of high incidence were lung cancer,female breast cancer,colorectal cancer,liver cancer and thy-roid cancer,and the top five malignant tumors of high mortality were lung cancer,liver cancer,colorectal cancer,stomach cancer and female breast cancer.From 2013 to 2019,the ASIRC of malignant tumors in cancer registration areas increased from 153.08/105 in 2013 to 167.10/105 in 2019,and the ASMRC increased from 92.22/105 in 2013 to 101.22/105 in 2019,but there was no statistical difference in the change trend.[Conclusion]The incidence and mortality of malignant tumors in Heilongjiang Province remain high.Lung cancer,female breast cancer,colorectal can-cer,liver cancer and stomach cancer should be the focus of cancer prevention and control.

Objective:To study effect of matrine on TNF-α induced proliferation of human umbilical vein endothelial cells(HUVEC),as well as to explore whether its mechanism is related to regulation of miR-125b-5p and STAT3 expressions.Methods:HUVEC proliferation model was established by TNF-α stimulating.After matrine treatment,miR-125b-5p level was detected by real-time fluorescent quantitative PCR,proliferating cell nuclear antigen(PCNA),cell cycle protein D1(CyclinD1),matrix metallopro-teinase 2(MMP2),MMP9,STAT3 levels were detected by real-time fluorescent quantitative PCR and Western blot.Targeting rela-tionship between miR-125b-5p and STAT3 was verified by dual luciferase reporter gene assay.Results:Matrine inhibited TNF-α in-duced HUVEC proliferation(P<0.05),decreased PCNA,CyclinD1,MMP2,MMP9,STAT3 expressions(P<0.05),and increased miR-125b-5p expression(P<0.05).Overexpression of miR-125b-5p could reduce cell proliferation and PCNA,CyclinD1,MMP2,MMP9 expressions HUVEC induced by TNF-α(P<0.05).miR-125b-5p targeted STAT3 expression negatively in HUVEC,and inhi-biting miR-125b-5p expression could reverse effect of matrine on TNF-α induced cell proliferation and PCNA,CyclinD1,MMP2,MMP9 and STAT3 expressions.Conclusion:Matrine inhibits TNF-α induced proliferation of HUVEC,which is related to regulation of miR-125b-5p/STAT3 pathway.

OBJECTIVE To investigate the epidemiological characteristics,clinical features and distribution of pathogens isolated from the burn wound patients with infections in a northwestern hospital from 2014 to 2023 so as to provide bases for prevention and treatment of burn wound infections in the northwestern region.METHODS The epidemiological characteristics,clinical features and distribution of pathogenic isolated from the burn wound patients with infections who were treated in the 940th Hospital of Joint Logistic Support Force from 2014 to 2023 were retrospectively analyzed.RESULTS A total of 2122 burn wound patients were enrolled in the study,397(18.71％)of whom had infections,including 306(14.42％)patients with community-acquired infections and 91(4.29％)patients with hospital-acquired infections.The proportion infections was higher among the patients aged no less than 60 years old(63/154)than among the patients aged less than 14 years old(231/983)and the pa-tients aged between 14 and 60 years old(103/985)(x2=108.840,P＜0.001).The proportion of infections was higher among the patients with the burn wound depth no less than grade Ⅲ(146/458)than among the patients with the burn wound depth no less than grade Ⅱ(251/1664)(x2=66.600,P＜0.001).The proportion infections was higher among the patients with burn wounds in limbs(370/1881)than among the patients with burn wounds in other sites(1153/1987)(x2=47.244,P＜0.001).The isolation rates of methicillin-resistant Staphy-lococcus epidermidis and carbapenem-resistant Pseudomonas aeruginosa strains showed downward trends from 2014 to 2023,the isolation rates of carbapenem-resistant Klebsiella pneumoniae and the third generation cephalo-sporins-resistant Escherichia coli showed upward trends,however,there were no significant differences.CONCLUSIONS The patients with no less than 60 years of age,no lower than grade Ⅲ of burn wound depth and burn wounds in limbs are more likely to have burn wound infections.S.aureus is the predominant species of pathogens causing the infections.The isolation rates of carbapenem-resistant K.pneumoniae strains and the third generation cephalosporins-resistant E.coli strains show upward trends.It is necessary to take targeted prevention and treatment measures for the burn wound infections.

Objective To analyze the virulence genes and antibiotics resistance of Escherichia coli(E.coli)isolates cause urinary tract infection(USI)in children,and further understand the epidemiological characteristics of E.coli isolates in children with USI.Methods Children with urinary system infection admitted to Quanzhou Maternity and Child Health Care Hospital&Children's Hospital from January to December 2021 were collected.E.coli was isolated from urine,and the drug sensitivity of the E.coli to 15 commonly used clinical antibiotics was detected by instruments.Among them,33 strains of E.coli that showed Extended-spectrum beta-lactamase(ESBL)production were increased,genomic DNA was extracted,and the whole genome sequence of the strains was analyzed by high-throughput sequencing technology.Results In the gene sequence analysis of 33 strains of E.coli,86 virulence genes were obtained,and the bacterial structural virulence genes accounted for the most(43/86),including capsular,fimbriae and cell-membrane system,followed by functional virulence genes and toxigenic genes,while fimH,fdeC and terC virulence genes had the highest detection rates.In the analysis of drug resistance,Cefazolin(96.97%)was the most resistant,and carbapenems were also found to be resistant.In addition,39 inactivation genes,18 target alteration genes and 51 e?ux system genes were obtained.The most information related to antibiotic e?ux(1 273/1 815),mainly RND and MFS superfamily e?ux pumps.There were 19～43 drug resistance genes in each E.coli genome.A variety of β-lactamase resistance genes were found,in which CTX-M/EC/TEM gene family dominated.Conclusion In the urine isolation of ESBL-producing E.coli in USI children,the β-lactamase should continue to be monitored.Virulence genes fimH,fdeC,terC and acrAB/emrAB/mdtABC-TolC e?ux pump gene detected higherratio,should be more attention.

Objective To evaluate the efficacy and safety of a subanesthetic dose of esketamine in prevent-ing postoperative nausea and vomiting following carboprost administration during cesarean section.Methods One hundred thirty-five full-term singleton parturients,ASAⅠ-Ⅱ,aged 20-40 years,scheduled for elective cesarean section,were recruited.They were randomly assigned to three groups(n=45):the normal saline group(Group C),the palonosetron group(Group P),and the esketamine group(Group E).All parturients received combined spinal-epidural anesthesia,achieving a sensory level of T5-7.Following umbilical cord clamping,carboprost tromethamine was injected into the uterine body.Concurrently,Group C received intravenous normal saline,Group P received palonosetron,and Group E received esketamine.The incidence of nausea,vomiting,and chest discomfort was recorded from the time of carboprost administration until the parturients left the operating theater.Additionally,mean arterial pressure(MAP),heart rate(HR),oxygen saturation(SpO2),and Ramsay sedation scores were mea-sured at six time points:upon entering the room(T0),1 minute before intervention(T1),2 minutes(T2),5 min-utes(T3),15 minutes(T4),and 30 minutes(T5)post-intervention.Maternal satisfaction was evaluated as the parturients left the operating room.Results Compared with group C,the incidence of nausea,vomiting,and chest discomfort in group E was significantly lower(all P<0.05).Additionally,group E showed a significantly lower incidence of nausea and chest discomfort compared to group P(all P<0.05).In terms of maternal satisfaction,group E reported significantly higher levels than both group C(P<0.05)and group P(P<0.05).No significant differences were observed in the incidence of nausea,vomiting,chest discomfort,or satisfaction between the other groups(P>0.05).Conclusion The administration of subanesthetic doses of esketamine significantly decreases the incidence of adverse effects such as nausea,vomiting,and chest tightness that are commonly associated with carboprost tromethamine use during cesarean sections,thereby enhancing patient satisfaction in the perioperative period.

Objective To evaluate the efficacy and safety of a subanesthetic dose of esketamine in prevent-ing postoperative nausea and vomiting following carboprost administration during cesarean section.Methods One hundred thirty-five full-term singleton parturients,ASAⅠ-Ⅱ,aged 20-40 years,scheduled for elective cesarean section,were recruited.They were randomly assigned to three groups(n=45):the normal saline group(Group C),the palonosetron group(Group P),and the esketamine group(Group E).All parturients received combined spinal-epidural anesthesia,achieving a sensory level of T5-7.Following umbilical cord clamping,carboprost tromethamine was injected into the uterine body.Concurrently,Group C received intravenous normal saline,Group P received palonosetron,and Group E received esketamine.The incidence of nausea,vomiting,and chest discomfort was recorded from the time of carboprost administration until the parturients left the operating theater.Additionally,mean arterial pressure(MAP),heart rate(HR),oxygen saturation(SpO2),and Ramsay sedation scores were mea-sured at six time points:upon entering the room(T0),1 minute before intervention(T1),2 minutes(T2),5 min-utes(T3),15 minutes(T4),and 30 minutes(T5)post-intervention.Maternal satisfaction was evaluated as the parturients left the operating room.Results Compared with group C,the incidence of nausea,vomiting,and chest discomfort in group E was significantly lower(all P<0.05).Additionally,group E showed a significantly lower incidence of nausea and chest discomfort compared to group P(all P<0.05).In terms of maternal satisfaction,group E reported significantly higher levels than both group C(P<0.05)and group P(P<0.05).No significant differences were observed in the incidence of nausea,vomiting,chest discomfort,or satisfaction between the other groups(P>0.05).Conclusion The administration of subanesthetic doses of esketamine significantly decreases the incidence of adverse effects such as nausea,vomiting,and chest tightness that are commonly associated with carboprost tromethamine use during cesarean sections,thereby enhancing patient satisfaction in the perioperative period.

The study explored the therapeutic effect and mechanism of the compound composed of tangerine peel,plum,agrimony and hawthorn on Eimeria tenella in chicks.In the experiment,144 chicks were divided into six groups:the blank group,the model group,the diclazuril group,and the high-dose,medium-dose and low-dose traditional Chinese medicine compound groups.The 14-day-old chickens were infected,the body weight and mortality were recorded,and the samples were dis-sected at 21 days of age.The anticoccidial effect of Chenpi compound at different doses was evalua-ted by calculating anticoccidial index,feed conversion rate and detecting serum cytokine levels and related mRNA expression levels.The results showed that the anticoccidial index of the middle dose group was 172.86,and the anticoccidial index of the low dose group was 158.98.In the middle and low dose groups,the levels of IL-1β,IL-6 and MDA in serum decreased significantly,while the levels of IL-4,IL10,T-AOC,SOD,CAT and GSH-Px increased significantly,and the mRNA ex-pression levels of related inflammation and antioxidant pathways changed.Further studies found that the medium-dose compound can regulate the ChTLR15/ChMyD88/ChNF-κB/ChNLRP3/Caspase-1 inflammatory signaling pathway,activate the Nrf2/Keap1/HO-1 antioxidant signaling pathway,and enhance the body's anti-inflammatory and antioxidant capacity;at the same time,it can increase the expression of intestinal tight junction ZO-1 and Occludin,repair the damaged in-testinal barrier,and play an anticoccidial role.The results showed that the middle dose of tangerine peel compound had a good effect in the treatment of coccidiosis,and its mechanism involved the regulation of anti-inflammatory and antioxidant pathways.

Objective To analyze the virulence genes and antibiotics resistance of Escherichia coli(E.coli)isolates cause urinary tract infection(USI)in children,and further understand the epidemiological characteristics of E.coli isolates in children with USI.Methods Children with urinary system infection admitted to Quanzhou Maternity and Child Health Care Hospital&Children's Hospital from January to December 2021 were collected.E.coli was isolated from urine,and the drug sensitivity of the E.coli to 15 commonly used clinical antibiotics was detected by instruments.Among them,33 strains of E.coli that showed Extended-spectrum beta-lactamase(ESBL)production were increased,genomic DNA was extracted,and the whole genome sequence of the strains was analyzed by high-throughput sequencing technology.Results In the gene sequence analysis of 33 strains of E.coli,86 virulence genes were obtained,and the bacterial structural virulence genes accounted for the most(43/86),including capsular,fimbriae and cell-membrane system,followed by functional virulence genes and toxigenic genes,while fimH,fdeC and terC virulence genes had the highest detection rates.In the analysis of drug resistance,Cefazolin(96.97%)was the most resistant,and carbapenems were also found to be resistant.In addition,39 inactivation genes,18 target alteration genes and 51 e?ux system genes were obtained.The most information related to antibiotic e?ux(1 273/1 815),mainly RND and MFS superfamily e?ux pumps.There were 19～43 drug resistance genes in each E.coli genome.A variety of β-lactamase resistance genes were found,in which CTX-M/EC/TEM gene family dominated.Conclusion In the urine isolation of ESBL-producing E.coli in USI children,the β-lactamase should continue to be monitored.Virulence genes fimH,fdeC,terC and acrAB/emrAB/mdtABC-TolC e?ux pump gene detected higherratio,should be more attention.

The study explored the therapeutic effect and mechanism of the compound composed of tangerine peel,plum,agrimony and hawthorn on Eimeria tenella in chicks.In the experiment,144 chicks were divided into six groups:the blank group,the model group,the diclazuril group,and the high-dose,medium-dose and low-dose traditional Chinese medicine compound groups.The 14-day-old chickens were infected,the body weight and mortality were recorded,and the samples were dis-sected at 21 days of age.The anticoccidial effect of Chenpi compound at different doses was evalua-ted by calculating anticoccidial index,feed conversion rate and detecting serum cytokine levels and related mRNA expression levels.The results showed that the anticoccidial index of the middle dose group was 172.86,and the anticoccidial index of the low dose group was 158.98.In the middle and low dose groups,the levels of IL-1β,IL-6 and MDA in serum decreased significantly,while the levels of IL-4,IL10,T-AOC,SOD,CAT and GSH-Px increased significantly,and the mRNA ex-pression levels of related inflammation and antioxidant pathways changed.Further studies found that the medium-dose compound can regulate the ChTLR15/ChMyD88/ChNF-κB/ChNLRP3/Caspase-1 inflammatory signaling pathway,activate the Nrf2/Keap1/HO-1 antioxidant signaling pathway,and enhance the body's anti-inflammatory and antioxidant capacity;at the same time,it can increase the expression of intestinal tight junction ZO-1 and Occludin,repair the damaged in-testinal barrier,and play an anticoccidial role.The results showed that the middle dose of tangerine peel compound had a good effect in the treatment of coccidiosis,and its mechanism involved the regulation of anti-inflammatory and antioxidant pathways.