Different animals in Xinjiang carry Escherichia coli O157:H7(E.coli O157:H7),but the connection between these strains is not clear.This study aims to understand the evolutionary sub-group of E.coli O157:H7,the distribution of the dominant genetic lineage,the biofilm formation ability,the carriage of mobile genetic elements and their drug resistance profile.E.coli O157:H7 was identified by PCR.Multilocus sequence typing(MLST)protocol was used for E.coli O157 to detect ST type,plasmid replicon and integron genes.Biofilm formation ability was determined by crystal violet microplate,and Kirby-Bauer was used to detect drug resistance.The results showed that 46.7％(7/15)of E.coli O157:H7 belongs to Group A,53.3％(8/15)of E.coli O157:H7 be-longs to Group E.Sheep source were mainly prevalent in Group A(4/6).Cattle sources are mainly Group E(6/7).A total of six ST types were detected:ST11(8/15),ST-206(1/15),ST-6126(3/15),ST-1640(1/15),ST-178(1/15),ST-4550(1/15).Two strains had a moderate biofilm-form-ing capacity,two strains had a weak biofilm-forming capacity,10 strains have no biofilm-forming capacity.All were multidrug-resistant strains,with complete resistance to lincomycin,oxacillin,clindamycin,vancomycin,midemycin and cefthiophene,and 88％-94％resistance to poly-myxin B,ampicillin,penicillin G and erythromycin,they are highly drug resistant.The five resist-ance genes detected were acrA(66.66％,10/15),tolC(73.33％,11/15),qurS(13.33％,2/15),floR and qurA(6.67％,1/15).Four plasm id replicons were detected,they were IncP(66.66％,10/15),IncFrepB(86.67％,13/15),IncFIA(6.67％,1/15),IncFIB(66.66％,10/15).Two class Ⅰ integrons were detected and they were ISCR1(33.33％,5/15),ISECP1(20％,3/15).The re-sults showed that E.coli O157:H7 in Xinjiang was predominantly prevalent in Group A and Group E.Sheep sources were predominantly prevalent in Group A,and cattle sources were predominantly prevalent in Group E.The ST types were widely distributed,with ST11 types being the predomi-nant type,the biofilm-forming ability was weak,and the resistance was strong,all of them were multi-drug-resistant strains,and the resistance genes were mainly externally excreted from the pumps,and the resistance genes had more spreading elements.

Objective To explore the value of apparent diffusion coefficient(ADC)value combined with ovarian-adnexal reporting and data system(O-RADS)MRI score in differentiating benign and malignant adnexal lesions with score 3-5.Methods The imaging data of 241 adnexal lesions with O-RADS MRI score 3-5 proved by pathology were analyzed retrospectively.The ADC values of all lesions were measured,and the optimal thresholds were determined by receiver operating characteristic(ROC)curve analysis,the comprehensive model was established using binary logistic regression analysis,the corresponding diagnostic efficacy was calculated.Results The median ADC values of the benign,borderline and malignant groups were 2.166 × 10-3 mm2/s,1.383 ×10-3 mm2/s and 0.839× 10-3mm2/s,respectively(P＜0.05).The area under the curve(AUC)of the combination of ADC value with O-RADS MRI score for differentiating benign and malignant adnexal lesions was 0.928[95％ confidence interval(CI)0.888-0.958],which was higher than that of O-RADS MRI score and ADC value alone(P＜0.05).The sensitivity and specificity of the three models in differ-entiating benign and malignant adnexal lesions were 93.5％,98.9％,83.9％,respectively;and 79.1％,58.8％,79.1％,respectively.Conclusion ADC value combined with O-RADS MRI score can be the most effective in the diagnosis of benign and malignant adnexal lesions,which is higher than O-RADS MRI score and ADC value.Compared with O-RADS MRI score,ADC value combined with O-RADS MRI score maintained good sensitivity and increased diagnostic specificity.

OBJECTIVE:To systematically evaluate the clinical effectiveness of rehabilitation robots in treating lower limb motor dysfunction in patients with cerebral palsy,and to compare the differences in therapeutic effects among different robots.METHODS:PubMed,Web of Science,Embase,Cochrane Library,CNKI,CBM,VIP and WanFang databases were searched to collect randomized controlled trials on rehabilitation robotics for the treatment of motor dysfunction in patients with cerebral palsy,published from database inception to April 10,2024.The main outcome indicators included muscle strength,muscle tension,balance function,step speed,step frequency,step length,walking endurance,lower limb motor function,and activities of daily living.The above indicators were coded according to the International Classification of Functioning,Disability and Health.Meta-analysis was performed to evaluate the clinical efficacy and compare the therapeutic efficacy of different rehabilitation robots.Literature search and screening were performed by two researchers,and the quality of the included literature was evaluated using the Cochrane 5.1.0 risk of bias assessment tool.Meta-analysis was performed using RevMan 5.4 software and Stata 16.0 software.RESULTS:(1)Fifteen articles were finally included,involving 512 patients with 260 in the experimental group and 252 in the control group.(2)The Meta-analysis results showed that rehabilitation robots could improve body structure and function[standardized mean difference=0.41,95%confidence interval(CI):0.24-0.58,P<0.05],activities(standardized mean difference=0.53,95%CI:0.41-0.65,P<0.05)and participation ability(mean difference=7.86,95%CI:1.54-14.18,P<0.05).In particular,the rehabilitation robot improved lower limb muscle strength,balance function,step speed,walking endurance,lower limb gross motor function,and activities of daily living in patients with cerebral palsy,but showed insignificant effects on step frequency,step length,and muscle tension.(3)The network Meta-analysis results showed that:step speed:Innowalkpro>Gait Trainer>Lokomat>3DCalt;6-minute walk test score:Gait Trainer>Lokomat>Lokohelp>Innowalkro;Gross Motor Function Measure-88D score:Lokohelp>Lokomat>KidGo>Innowalkpro>3DCalt;Gross Motor Function Measure-88E score:Lokomat>Lokohelp>KidGo>3DCalt>Innowalkpro.CONCLUSION:Based on the International Classification of Functioning,Disability,and Health,rehabilitation robot training can improve the lower limb motor function and activities of daily living in patients with cerebral palsy.The Innowalkpro robot was more effective in improving step speed;the Gait trainer robot was more effective in improving 6-minute walk test scores;the Lokohelp robot was more effective in improving Gross Motor Function Measure-88D zone scores;and the Lokomat robot was more effective in improving Gross Motor Function Measure-88E zone scores.

Different animals in Xinjiang carry Escherichia coli O157:H7(E.coli O157:H7),but the connection between these strains is not clear.This study aims to understand the evolutionary sub-group of E.coli O157:H7,the distribution of the dominant genetic lineage,the biofilm formation ability,the carriage of mobile genetic elements and their drug resistance profile.E.coli O157:H7 was identified by PCR.Multilocus sequence typing(MLST)protocol was used for E.coli O157 to detect ST type,plasmid replicon and integron genes.Biofilm formation ability was determined by crystal violet microplate,and Kirby-Bauer was used to detect drug resistance.The results showed that 46.7％(7/15)of E.coli O157:H7 belongs to Group A,53.3％(8/15)of E.coli O157:H7 be-longs to Group E.Sheep source were mainly prevalent in Group A(4/6).Cattle sources are mainly Group E(6/7).A total of six ST types were detected:ST11(8/15),ST-206(1/15),ST-6126(3/15),ST-1640(1/15),ST-178(1/15),ST-4550(1/15).Two strains had a moderate biofilm-form-ing capacity,two strains had a weak biofilm-forming capacity,10 strains have no biofilm-forming capacity.All were multidrug-resistant strains,with complete resistance to lincomycin,oxacillin,clindamycin,vancomycin,midemycin and cefthiophene,and 88％-94％resistance to poly-myxin B,ampicillin,penicillin G and erythromycin,they are highly drug resistant.The five resist-ance genes detected were acrA(66.66％,10/15),tolC(73.33％,11/15),qurS(13.33％,2/15),floR and qurA(6.67％,1/15).Four plasm id replicons were detected,they were IncP(66.66％,10/15),IncFrepB(86.67％,13/15),IncFIA(6.67％,1/15),IncFIB(66.66％,10/15).Two class Ⅰ integrons were detected and they were ISCR1(33.33％,5/15),ISECP1(20％,3/15).The re-sults showed that E.coli O157:H7 in Xinjiang was predominantly prevalent in Group A and Group E.Sheep sources were predominantly prevalent in Group A,and cattle sources were predominantly prevalent in Group E.The ST types were widely distributed,with ST11 types being the predomi-nant type,the biofilm-forming ability was weak,and the resistance was strong,all of them were multi-drug-resistant strains,and the resistance genes were mainly externally excreted from the pumps,and the resistance genes had more spreading elements.

Objective To explore the value of apparent diffusion coefficient(ADC)value combined with ovarian-adnexal reporting and data system(O-RADS)MRI score in differentiating benign and malignant adnexal lesions with score 3-5.Methods The imaging data of 241 adnexal lesions with O-RADS MRI score 3-5 proved by pathology were analyzed retrospectively.The ADC values of all lesions were measured,and the optimal thresholds were determined by receiver operating characteristic(ROC)curve analysis,the comprehensive model was established using binary logistic regression analysis,the corresponding diagnostic efficacy was calculated.Results The median ADC values of the benign,borderline and malignant groups were 2.166 × 10-3 mm2/s,1.383 ×10-3 mm2/s and 0.839× 10-3mm2/s,respectively(P＜0.05).The area under the curve(AUC)of the combination of ADC value with O-RADS MRI score for differentiating benign and malignant adnexal lesions was 0.928[95％ confidence interval(CI)0.888-0.958],which was higher than that of O-RADS MRI score and ADC value alone(P＜0.05).The sensitivity and specificity of the three models in differ-entiating benign and malignant adnexal lesions were 93.5％,98.9％,83.9％,respectively;and 79.1％,58.8％,79.1％,respectively.Conclusion ADC value combined with O-RADS MRI score can be the most effective in the diagnosis of benign and malignant adnexal lesions,which is higher than O-RADS MRI score and ADC value.Compared with O-RADS MRI score,ADC value combined with O-RADS MRI score maintained good sensitivity and increased diagnostic specificity.

OBJECTIVE:To systematically evaluate the clinical effectiveness of rehabilitation robots in treating lower limb motor dysfunction in patients with cerebral palsy,and to compare the differences in therapeutic effects among different robots.METHODS:PubMed,Web of Science,Embase,Cochrane Library,CNKI,CBM,VIP and WanFang databases were searched to collect randomized controlled trials on rehabilitation robotics for the treatment of motor dysfunction in patients with cerebral palsy,published from database inception to April 10,2024.The main outcome indicators included muscle strength,muscle tension,balance function,step speed,step frequency,step length,walking endurance,lower limb motor function,and activities of daily living.The above indicators were coded according to the International Classification of Functioning,Disability and Health.Meta-analysis was performed to evaluate the clinical efficacy and compare the therapeutic efficacy of different rehabilitation robots.Literature search and screening were performed by two researchers,and the quality of the included literature was evaluated using the Cochrane 5.1.0 risk of bias assessment tool.Meta-analysis was performed using RevMan 5.4 software and Stata 16.0 software.RESULTS:(1)Fifteen articles were finally included,involving 512 patients with 260 in the experimental group and 252 in the control group.(2)The Meta-analysis results showed that rehabilitation robots could improve body structure and function[standardized mean difference=0.41,95%confidence interval(CI):0.24-0.58,P<0.05],activities(standardized mean difference=0.53,95%CI:0.41-0.65,P<0.05)and participation ability(mean difference=7.86,95%CI:1.54-14.18,P<0.05).In particular,the rehabilitation robot improved lower limb muscle strength,balance function,step speed,walking endurance,lower limb gross motor function,and activities of daily living in patients with cerebral palsy,but showed insignificant effects on step frequency,step length,and muscle tension.(3)The network Meta-analysis results showed that:step speed:Innowalkpro>Gait Trainer>Lokomat>3DCalt;6-minute walk test score:Gait Trainer>Lokomat>Lokohelp>Innowalkro;Gross Motor Function Measure-88D score:Lokohelp>Lokomat>KidGo>Innowalkpro>3DCalt;Gross Motor Function Measure-88E score:Lokomat>Lokohelp>KidGo>3DCalt>Innowalkpro.CONCLUSION:Based on the International Classification of Functioning,Disability,and Health,rehabilitation robot training can improve the lower limb motor function and activities of daily living in patients with cerebral palsy.The Innowalkpro robot was more effective in improving step speed;the Gait trainer robot was more effective in improving 6-minute walk test scores;the Lokohelp robot was more effective in improving Gross Motor Function Measure-88D zone scores;and the Lokomat robot was more effective in improving Gross Motor Function Measure-88E zone scores.

Objective To investigate the role of autophagy in contrast-induced acute kidney injury(CI-AKI)in rats and to explore its possible mechanism.Methods SD rats were randomly divided into control group,acute kid-ney injury model group(intravenous injection of contrast medium ioversol via tail vein;model),rapamycin(RAPA)group and hydroxychloroquine(HCQ)group.Blood urea nitrogen(BUN)and serum creatinine(Scr)con-tents were measured and the potential change foun in renal pathology was detected by HE staining and microscopy.Transmission electron microscopy was used to observe auto-phagy-related changes in ultrastructure.Western blot was used to observe the expression of microtubule-associated protein 1 light chain 3(LC3)Ⅱ/LC3Ⅰ,ubiquitin-binding protein p62 and Histone deacetylase 4(HDAC4).The expression of HDAC4 was also observed by RT-qPCR.Results Compared with control group,the level of BUN,Scr and HDAC4 expression in the model and HCQ group was increased(P＜0.01),the proximal tubules of the kidney were significantly damaged.In the model group,auto-phagososomes and autolysosomes increased,accompanied by an increase of LC3Ⅱ/LC3Ⅰ and a decrease in the p62 level(P＜0.05,P＜0.01);Compared with model group,there were more autophagosomes and autolysosomes were found in RAPA group(P＜0.01),accompanied by increased LC3Ⅱ/LC3Ⅰratio and decrease in the p62 and HDAC4(P＜0.05,P＜0.01).In contrast,the number of autophagy related structures decreased in HCQ group(P＜0.01),accompanied by the simultaneous increase of LC3Ⅱ/LC3Ⅰ,p62 and the increase of HDAC4(P＜0.01).Conclusions Ioversol may induce autophagy activation,while enhancing autophagy by RAPA alleviates CI-AKI induced renal dysfunction.The mechanism is potentially atributed to the regulation of HDAC4.

Objective To investigate the differences in health empowerment,perceived control and experiential avoidance between patients with coronary heart disease(CHD)with type D personality and non-type D personality. Methods From January to October,2022,using the convenient sampling method,a questionnaire survey was conducted on 195 patients with CHD from Affiliated Hospital of Shandong Second Medical University.Assessment tools in-cluded Type D Personality Scale,Chinese Version of Patient Perception Empowerment Scale(CV-PPES),Con-trol Attitudes Scale-Revised(CAS-R)and Acceptance Action Questionnaire-Ⅱ(AAQ-Ⅱ). Results A total of 185 effective questionnaires were returned,and 68 patients with type D personality.Compared with the patients with non-type D personality,the scores of negative affectivity and social inhibition were higher(|t|＞9.783,P＜0.001),the total score of CV-PPES and the scores of four dimensions(information,decision,individu-al and self-management)were lower(t＞5.843,P＜0.001),the score of CAS-R was lower(t=2.858,P=0.005),and the score of AAQ-Ⅱ was higher(t=-9.414,P＜0.001)in CHD patients with type D personality. Conclusion Compared with non-D-type patients,CHD patients with D-type personality exhibit lower levels of health empowerment and perceived control,and higher level of experiential avoidance,which may negatively impact on health behaviors.

OBJECTIVE:To systematically evaluate the efficacy of rehabilitation exoskeleton robots on the lower limb motor function of stroke patients using Meta-analysis and to compare the efficacy of different lower limb exoskeleton robots,so as to provide a theoretical basis for the scientific selection of suitable exoskeleton robots for patients with post-stroke lower limb motor dysfunction. METHODS:Computer searches of the Cochrane Library,PubMed,Web of Science,Embase,CNKI,VIP,and WanFang Data were conducted to collect randomized controlled clinical studies on exploring lower extremity rehabilitation exoskeleton robots to improve lower limb motor function in stroke patients published from database inception to November 2022.Two researchers conducted the literature search and screening.The quality of the included literature was evaluated using the Cochrane 5.1.0 risk of bias assessment tool and the Jadad scale.Meta-analysis was performed using RevMan 5.4 and Stata 17.0 software. RESULTS:(1)Finally 22 publications were included,involving 865 patients(n=436 in the test group and n=429 in the control group),and the Jadad score showed that all the included articles were of high quality.(2)Meta-analysis results showed that the exoskeleton robot significantly improved the Fugl-Meyer Assessment of Lower Extremity score(mean difference[MD]=2.63,95%confidence interval[CI]:1.87-3.38,P<0.05),Berg Balance Scale score(MD=3.62,95%CI:1.21-6.03,P<0.05),Timed Up and Go score(MD=-2.77,95%CI:-4.48 to-1.05,P<0.05)and step frequency score(MD=3.15,95%CI:1.57-4.72,P<0.05)in stroke patients compared with the control group.However,there was no significant improvement in the Functional Ambulation Category Scale score(MD=0.30,95%CI:-0.01 to 0.61,P>0.05)and 6-minute walk test score(MD=3.77,95%CI:-6.60 to 14.14,P>0.05).(3)Network Meta-analysis results showed that compared with the conventional rehabilitation therapy,both the level-walking exoskeleton(MD=10.23,95%CI:3.81-27.49,P<0.05)and the body-weight support exoskeleton(MD=33.66,95%CI:11.49-98.54,P<0.05)improved the Fugl-Meyer Assessment of Lower Extremity score.Compared with the conventional rehabilitation therapy,body-weight support exoskeleton significantly improved the Berg Balance Scale scores(MD=79.86,95%CI:2.34-2 725.99,P<0.05).In terms of Fugl-Meyer Assessment of Lower Extremity and Berg Balance Scale scores,the ranking results were body-weight support exoskeleton>level-walking exoskeleton>conventional rehabilitation therapy.Compared with the conventional rehabilitation therapy,level-walking exoskeleton significantly improved the Functional Ambulation Category Scale score(MD=1.38,95%CI:1.00-1.90,P<0.05)and body-weight support exoskeleton significantly improved the Timed Up and Go score(MD=0.07,95%CI:0.01-0.51,P<0.05).In terms of Functional Ambulation Category Scale and Timed Up and Go scores,the ranking results were level-walking exoskeleton>body-weight support exoskeleton>conventional rehabilitation therapy. CONCLUSION:Rehabilitation exoskeleton robots can improve balance,walking and activities of daily living in stroke patients,with body-weight support exoskeleton being more effective in improving lower limb motor function and balance and level walking exoskeleton being more effective in improving functional walking and transfer.

Objective:To investigate the protective effect of racanisodamine (654-2) on lung epithelial cell injury induced by X-ray in mice and unravel the underlying mechanism.Methods:Mouse alveolar epithelial cells MLE-12 were used to establish radiation-induced lung injury (RILI) model in vitro and divided into 4 groups as follows: control (no irradiation), radiation (16 Gy radiation), treatment 1 (16 Gy radiation + 2 μmol/L 654-2), treatment 2 (16 Gy radiation + 10 μmol/L 654-2), and inhibitor (16 Gy radiation + 10 μmol/L 654-2 + 2 μmol/L ML385), respectively. Cells were sampled at different time points after radiation. Cell senescence was detected with senescence-associated β-galactosidase (SA-β-Gal) staining. Cell colony-forming ability was detected to observe the recovery capability of cells after treatment. The expression levels of p21, p16, phosphorylated histone H2AX(γH2AX), nuclear factor erythroid-2 related factor 2 (Nrf2), Nrf2 Ser40 site phosphorylation (p-Nrf2), p62, heme oxygenase-1 (HO-1) and NAD(P)H quinone oxidoreductase 1 (NQO1) proteins were measured by Western blot. Cell apoptosis and the production of intracellular reactive oxygen species (ROS) were determined by flow cytometry. The expression levels of glutathione (GSH) and superoxide dismutase (SOD) were detected according to the manufectuer instructions. The expression levels of glutamate-cysteine ligase catalytic subunit (GCLC) and glutamate-cysteine ligase modifier subunit (GCLM) mRNA were determined by real time reverse transcription PCR. Measurement data were expressed as Mean ±SD. Comparison between two groups was conducted by independent sample t-test, and comparison among multiple groups was performed by one-way ANOVA. Results:Compared with the radiation group, the proportion of cells with positive staining of SA-β-Gal was significantly lower and cell senescence were alleviated in the treatment 1 and 2 groups (all P<0.001). Compared with the radiation group, the expression level of γH2AX protein was significantly down-regulated ( P=0.037), cell apoptosis rate was significantly decreased ( P=0.026), the proliferation capacity of MLE-12 was enhanced ( P=0.004), GSH ( P=0.002) and SOD ( P<0.001) activity was enhanced and ROS production was declined ( P=0.001) in the treatment 2 group. The expression levels of Nrf2 and p-Nrf2 in total protein were up-regulated over the time of 654-2 intervention. Meanwhile, the expression levels of antioxidant proteins of NQO1 and HO-1 were up-regulated and that of GCLC and GCLM mRNA was also up-regulated. There were no significant differences in the number of cells with positive staining of SA-β-Gal ( P=0.145) and ROS production ( P=0.317) between the inhibitor and radiation groups after supplement of ML385, small-molecule inhibitor of Nrf2. Conclusion:654-2 can activate the Nrf2 pathway, enhance cell antioxidant capacity and inhibit cell senescence, thereby playing a protective role on radiation- induced lung injury.