Background Prior epidemiological studies suggest that exposure to pyrethroid insecticides may adversely affect children’s respiratory health. However, only limited studies are currently available on this topic in China. Objective To explore the association between exposure to pyrethroid insecticides and pulmonary function in children in Shanghai. Methods From August 2019 to January 2020, a cross-sectional study was conducted, recruiting 163 healthy school-aged children (aged 5–12 years) from Shanghai Children’s Hospital, Shanghai Jiao Tong University School of Medicine. Basic information, including age, height, weight, and family income, was collected. Urine samples from the children were collected and were analyzed for the levels of three pyrethroid insecticide metabolites: 3-phenoxybenzoic acid (3-PBA), cis-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (CDCCA), and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (TDCCA). Gas chromatography-tandem mass spectrometry (GC-MS/MS) was used for the analysis. Spirometry was used to assess pulmonary function and recorded following parameters: peak expiratory flow (PEF), forced expiratory flow between the 25th and 75th percentiles of forced vital capacity (FEF_25-75), forced expiratory volume in one second (FEV₁), forced vital capacity (FVC), and FEV₁/FVC. Multiple linear regression and restricted cubic spline models were used to evaluate the associations between urinary pyrethroid insecticide metabolite levels and pulmonary function parameters. Results The study included 163 school-aged children, with an average age of (7.04 ± 2.08) years and an average body mass index (BMI) of (16.04 ± 2.72) kg·m⁻²; 75 (46.01%) of the participants were boys. The detection rates of 3-PBA, TDCCA, and CDCCA in urine were 85.28%, 17.79%, and 4.91%, respectively. The median creatinine-adjusted 3-PBA concentration was 0.150 μg·g⁻¹. After adjusting for confounders such as height, BMI, sex, age, delivery mode, annual family income, and maternal education level, the multiple linear regression model showed that urinary 3-PBA levels were negatively associated with both FVC [β=−0.030, 95% confidence interval (CI): −0.058, −0.003; P=0.031] and FEV₁ (β=−0.032, 95%CI: −0.064, 0.000; P=0.04998). The final restricted cubic spline model showed a nonlinear association between urinary 3-PBA levels and FVC, FEV₁, PEF, and FEF_25-75（P for nonlinear < 0.05；P for overall < 0.05）. Conclusion The level of pyrethroid insecticide exposure in school-aged children in Shanghai is relatively high. The urinary 3-PBA concentration is negatively associated with pulmonary function, indicating potential adverse effects of pyrethroid insecticide exposure on respiratory health of school-aged children.

Objective:To investigate the changes of serum complement C1q/tumor necrosis factor-associated protein 3 (CTRP3) in patients with rheumatoid arthritis (RA) and its clinical significance.Methods:A total of 60 RA patients admitted to Chongming Hospital affiliated to Shanghai University of Medicine & Health Sciences (Chongming Branch of Xinhua Hospital) from January 2023 to February 2024 were collected.They were divided into a plaque group (38 cases) and a plaque free group (22 cases) according to the results of carotid intima-media thickness (cIMT) by carotid artery ultrasonography. ESR, CRP, blood lipid, HOMA-IR, RF, CCP antibody and CTRP3 levels were detected, and the relationship between CTRP3 levels and disease activity and atherosclerosis in RA patients was analyzed. The statistical analysis was carried out with independent t-test, analysis of variance, Pearson correlation analysis and logistic regression. Results:Serum CTRP3 level in RA patients was lower than that in healthy control group [(116±44)ng/ml and (184±63)ng/ml, t=-6.54, P=0.004]. The CTRP3 level in RA group with plaque was lower than that in RA group without plaque [(98±28) ng/ml and (123±38)ng/ml, t=-5.57, P=0.008]. Serum CTRP3 levels in RA patients were correlated with LDL-C ( r=-0.68, P=0.011), HOMA-IR ( r=-0.74, P=0.001), RF ( r=-0.46, P=0.042), anti-CCP antibody( r=-0.54, P=0.037), DAS28 ( r=-0.66, P=0.024) were negatively correlated with cIMT ( r=-0.76, P=0.001), and positively correlated with DMARDs duration ( r=0.51, P=0.040) and flow-mediated di latatiton ( r=0.70, P=0.004). The CTRP3 level [( OR(95% CI)=0.683(0.355, 0.807), P=0.023] was an independent correlation factor affecting cIMT. Conclusion:CTRP3 level in RA patients is significantly lower than that in healthy control group, and is negatively correlated with insulin resistance, autoantibody level and disease activity, and has a protective effect on early atherosclerosis in RA patients.

Objective:To investigate the characteristics and clinical effects of laparoscopic pneumovesical Cohen and laparoscopic Lich-Gregoir ureteral replantations for the treatment of primary obstructive megaloureter (POM) in children.Methods:A randomized controlled study was conducted.The clinical data of 51 children with unilateral POM admitted to the First Affiliated Hospital of Zhengzhou University from October 2018 to October 2023 were collected.Random number table method was used in the selection of surgical methods.They were divided into the laparoscopic pneumovesical Cohen ureteral replantation group (group A, 22 cases) and the laparoscopic Lich-Gregoir ureteral replantation group (group B, 29 cases) according to the surgical method.The anterior-posterior diameter(APD), maximum ureteral diameter and differential renal function parameters on the affected side were measured by color Doppler ultrasound of the urinary system, and compared between and within the two groups before and after surgery.The operation time, blood loss and postoperative intubation time were compared between the two groups.The incidence of postoperative complications such as reflux, bladder spasm, urinary retention and urinary tract infection was recorded.The independent and paired sample t-tests were used for statistical analysis. Results:The operation time and hematuria duration of group B [(125.7±14.2) min, (1.5±0.6) d] were significantly shorter than those of group A [(142.6±14.7) min, (2.8±0.7) d] (all P<0.05). The APD, maximum ureteral diameter, and differential renal function on the affected side of group A were (21.7±7.9) mm, (11.6±3.2) mm, and (28.2±4.9)% before surgery, and (10.3±4.5) mm, (6.0±2.0) mm and (43.8±4.4)% after surgery, respectively.The APD, maximum ureteral diameter, and differential renal function on the affected side of group B were (21.1±5.6) mm, (11.3±4.6) mm, and (30.2±5.5)% before surgery, and (10.2±4.5) mm, (6.6±2.0) mm, and (42.4±5.2)% after surgery, respectively.There was no statistically significant difference in the values of APD, maximum ureteral diameter, and differential renal function before and after surgery between the two groups of children (all P>0.05). However, there were statistically significant differences in the values of APD, maximum ureteral diameter, and differential renal function before and after surgery between the same group of children (all P<0.01). No significant difference was found in intraoperative blood loss, postoperative intubation time, and postoperative complications between the two groups (all P>0.05). Conclusions:Both surgical methods are effective in the treatment of POM in children.Laparoscopic Lich-Gregoir ureteral replantation has advantages of less operation time compared with laparoscopic pneumovesical Cohen ureteral replantation.

Objective To systematically evaluate the impact of cough enhancement techniques on weaning outcomes in adult patients under mechanical ventilation(MV).Methods Databases from the inception to 15th November,2024 were searched for randomised controlled trials(RCTs)on cough enhancement technique in MV patients.The searched databases were CNKI,Wanfang Data base,SinoMed,Vip,PubMed,Web of Science,Cochrane Library,Embase,and CINAHL.Literature and evidence quality were evaluated using Cochrane's evaluation tool for intervention research and the GRADE system,and data were extracted and analysed via Meta-analysis with Review Manager 5.3.Results A total of 27 studies were included,involving 2,322 patients(1,169 in the trial group and 1,153 in the control group).Compared with the control group,the trial group had shorter time of mechanical ventilation[MD=-1.40,95%CI(-1.83,-0.97),P<0.001],lower weaning failure rate[OR=0.48,95%CI(0.27,0.85),P=0.01],higher oxygenation index[MD=35.48,95%CI(21.53,49.43),P<0.001],lower pulmonary atelectasis incidence[OR=0.30,95%CI(0.18,0.49),P<0.001],greater sputum volume[MD=1.88,95%CI(0.76,3.01),P=0.001],shorter ICU stay[MD=-1.90,95%CI(-2.95,-0.85),P<0.001]and lower serum procalcitonin(PCT)[MD=-0.89,95%CI(-1.64,-0.14),P=0.02],all with statistically significant differences.However,there was no significant difference in the ventilator-associated pneumonia(VAP)between the two groups[OR=0.54,95%CI(0.21,1.35),P=0.19].Conclusion Cough enhancement techniques promote sputum discharge,improve infection and oxygenation,shorten mechanical ventilation and ICU stay,reduce weaning failure and atelectasis rates in MV patients.Further studies are required to reduce the incidence of VAP.

Objective: To investigate the expression of ribosomal protein L26 ( RPL26) in gastric cancer cells (GC) and its effect on cell apoptosis and proliferation . Methods: The expression of RPL26 in GES-1 and GC cell lines was detected by Western blot. GC cell line HGC-27 was used to construct RPL26 overexpression cell line , and GC cell lines HGC-27 and AGS cells were used to construct RPL26 knockdown cell line . The overexpression and knockdown efficiency of RPL26 were detected by Western blot. Cell counting kit-8 (CCK-8) , colony formation assay and Transwell assay were used to detect the effects of the overexpression and knockdown of RPL26 on the pro- liferation and migration of GC cells . Western blot was used to detect the expression of Phosphatidylinositol-3-kinase (PI3K) / protein kinase B (AKT) signaling pathway related factors PI3K , AKT , phosphorylated phosphatidylinosi- tol-3-kinase (p-PI3K) , phosphorylated protein kinase B ( p-AKT) and downstream factors B-Cell lymphoma-2 (Bcl-2) , Bcl-2 associated X protein (Bax) and Cyclin A , G1 /S-specific Cyclin D1(Cyclin D1) , Cyclin-depend- ent kinases (CDK)4 and CDK2 in overexpression and knockdown of RPL26 stably transfected cell lines . Results: Compared with GES-1 , RPL26 was highly expressed in HGC-27 cells ( tHGC-27 = 4. 97 ; P < 0. 01) and elevated in AGS , but the difference was not statistically significant. In HGC-27 and AGS cells , CCK-8 and colony formation assays showed that the proliferation ability of cells decreased after the knockdown of RPL26. Transwell assay showed that the migration ability of cells decreased after the knockdown of RPL26. Western blot showed that Bcl-2 expression was decreased in HGC-27 , AGS cells after the knockdown of RPL26 ( tHGC-27 = 11 . 50 , tAGS = 4. 77 ; P < 0. 001 , P < 0. 01) , and Bax expression increased ( tHGC-27 = 9. 63 , tAGS = 4. 05 ; P < 0. 001 , P < 0. 05) . In HGC-27 cells , the ratios of p-PI3K/PI3K and p-AKT/AKT significantly decreased after the knockdown of RPL26 ( tp-PI3K/PI3K = 3 . 86 , tp-AKT/AKT = 8. 29 ; P < 0. 05 , P < 0. 01) . Cyclin A , Cyclin D1 , CDK4 , CDK2 protein expressions de- creased ( t = 9. 61 , 5 . 10 , 11 . 64 , 7. 81 ; P < 0. 01 or P < 0. 001) , while the overexpression of RPL26 in HGC-27 cells showed the opposite trend . Conclusion The knockdown of RPL26 may arrest the cell cycle in G1 /S phase by inhibiting the PI3K/AKT signaling pathway , thereby inhibiting cell proliferation and promoting apoptosis .

Objective To explore the potential categories of psychosocial adaptation in psoriasis patients and their differences in social alienation.Methods Using a cross-sectional survey design,convenience sam-pling was used to select 376 psoriasis patients from multiple hospitals in Shandong Province from September to December 2022.Participants completed the general information questionnaire,Psychosocial Adaptation to Illness Scale(PAIS-SR),Acceptance and Action Questionnaire-Ⅱ(AAQ-2),and General Alienation Scale(GAS).Latent profile analysis was performed using Mplus8.0 software to identify psychosocial adaptation patterns of psoriasis patients,and SPSS25.0 was used to compare social alienation differences among different adaptation groups.Results Psoriasis patients could be divided into two latent profiles:moderate psychosocial adaptation group(31.38％)and low psychosocial adaptation group(68.62％).Medical payment method,dis-ease recurrence,psoriasis subtype,disease duration,family history,skin lesion exposure,and AAQ-2 scores were identified as main influencing factors(P＜0.05).Significant differences in total GAS scores were found between the two groups(P＜0.05).Conclusion The psychosocial adaptation of psoriasis patients shows het-erogeneity and could be classified into two latent profiles.Targeted interventions should be implemented to improve psychosocial adaptation levels.

Debates persist regarding the efficacy and safety of azvudine, particularly its real-world outcomes. This study involved patients aged ≥60 years who were admitted to 25 hospitals in mainland China with confirmed SARS-CoV-2 infection between December 1, 2022, and February 28, 2023. Efficacy outcomes were all-cause mortality during hospitalization, the proportion of patients discharged with recovery, time to nucleic acid-negative conversion (T _NANC), time to symptom improvement (T _SI), and time of hospital stay (T _HS). Safety was also assessed. Among the 5884 participants identified, 1999 received azvudine, and 1999 matched controls were included after exclusion and propensity score matching. Azvudine recipients exhibited lower all-cause mortality compared with controls in the overall population (13.3% vs. 17.1%, RR, 0.78; 95% CI, 0.67-0.90; P = 0.001) and in the severe subgroup (25.7% vs. 33.7%; RR, 0.76; 95% CI, 0.66-0.88; P < 0.001). A higher proportion of patients discharged with recovery, and a shorter T _NANC were associated with azvudine recipients, especially in the severe subgroup. The incidence of adverse events in azvudine recipients was comparable to that in the control group (2.3% vs. 1.7%, P = 0.170). In conclusion, azvudine showed efficacy and safety in older patients hospitalized with COVID-19 during the SARS-CoV-2 omicron wave in China.

Objective:To investigate the value of a multi-parameter MRI nomogram model in evaluating the recurrence risk of hormone receptor (HR)-positive breast cancer.Methods:This study was a retrospective cross-sectional study. A retrospective analysis was conducted on the clinicopathological data (age, menopausal status, axillary lymph node metastasis, etc.) and imaging data of 220 patients with HR-positive breast cancer who underwent breast MRI examination and were pathologically confirmed at the Second Affiliated Hospital of Nantong University from January 2018 to December 2023. All patients underwent preoperative MRI examinations. Their MRI features were analyzed, and the maximum diameter of the lesion and the apparent diffusion coefficient (ADC) value were measured. Finally, the clinical treatment score (CTS5 score) after 5 years was calculated, and all patients were divided into a low recurrence risk (CTS5 score 3.13 points) and a medium to high recurrence risk (CTS5 score≥3.13 points) group. The patients were followed up through the electronic medical record system or by phone until December 31, 2024 to determine recurrence status. The patients were divided into the recurrence group and the non-recurrence group. The differences in clinicopathological data, MRI features and CTS5 scores between the recurrence group and the non-recurrence group were compared using independent sample t-tests, Mann-Whitney U tests or χ2 tests. Indicators with P0.05 in the univariate analysis were included in the multivariate logistic regression to screen the independent risk factors for predicting the recurrence of HR receptor-positive breast cancer, and a nomogram was constructed to establish the nomogram model. The receiver operating characteristic curves and the area under the curve (AUC) were used to evaluate the efficacy of the nomogram model in predicting the postoperative recurrence risk of patients with HR-positive breast cancer. The variance inflation factor (VIF) was used to evaluate the multicollinearity among independent variables. Calibration curves and decision curve analysis (DCA) were used to assess the fit and net clinical benefit of the nomogram model. Results:Among 220 patients with HR-positive breast cancer, 196 cases were in the non-recurrence group and 24 cases were in the recurrence group. There were statistically significant differences in the maximum diameter of the lesion, axillary lymph node metastasis, ADC value, CTS5 grouping, and CTS5 score between the recurrence group and the non-recurrence group ( P0.05). Multivariate logistic regression analysis showed that the maximum diameter of the lesion ( OR=1.110, 95% CI 1.169-1.503, P0.001), ADC value ( OR=0.993, 95% CI 0.993?0.989, P0.001), and axillary lymph node metastasis ( OR=8.842; 95% CI 2.120?36.884, P=0.003) were independent factors influencing postoperative recurrence in patients with HR-positive breast cancer, and a nomogram model was constructed based on this. VIF analysis showed that no significant multicollinearity was detected among the variables (VIF5). The AUC value of the nomogram model for predicting postoperative recurrence in patients with HR-positive breast cancer was 0.868 (95% CI 0.794-0.942), the sensitivity was 0.875, and the specificity was 0.781. The calibration curve showed that the prediction curve of this model for predicting postoperative recurrence in HR-positive breast cancer patients was basically consistent with the ideal curve trend. DCA showed that this model had a relatively high clinical benefit within the threshold probability range of 0.01% to 90.00%. Conclusion:The nomogram constructed based on multi-parameter MRI features can predict the postoperative recurrence risk of HR-positive breast cancer patients, with good consistency and predictive ability.

Objective:Investigate the impact of calcification on the long-term outcomes of patients with coronary chronic total occlusion (CTO) after percutaneous coronary intervention (PCI).Methods:A retrospective cohort study was conducted. Patients who underwent PCI and had at least one CTO lesion at Fuwai Hospital between January 2010 and December 2013 were consecutively enrolled. Calcification was evaluated by coronary angiography, and patients were divided into two groups: moderate/severe calcification group and non/mild calcification group. Clinical follow-up was completed up to 5 years. Incidence of PCI-related complications and immediate procedural outcomes were compared between two groups, and the primary endpoint was the target lesion failure (TLF) at 5 years after PCI. Clinical follow-up endpoint events were analyzed using Kaplan-Meier survival analysis with log-rank test, and Cox multivariate regression model was used to evaluate the relationship between calcification and TLF.Results:The study included 2 659 CTO patients with an age of (57.2±10.5) years, of whom 442 (16.6%) were female, and among whom 13.5% (360/2 659) had moderate/severe calcification. Compared with the non/mild calcification group, the moderate/severe calcification group had a higher incidence of PCI-related complications (43.2% (156/361) vs. 32.5% (772/2 374), P<0.001) and procedural failure (34.3% (124/361) vs. 24.3% (577/2 374), P<0.001). Additionally, the moderate/severe calcification group showed a higher risk of the primary endpoint event (TLF) during the 5-year follow-up (19.8% vs. 15.3%, log-rank P=0.028). Higher incidence of cardiac death was observed in moderate/severe calcification group (5.7% vs. 2.7%, log-rank P=0.003). Cox multivariate regression analysis revealed that moderate/severe calcified plaques remained an independent risk factor for 5-year TLF after CTO-PCI ( HR=1.34, 95% CI: 1.01-1.79, P=0.043). Conclusion:Compared with CTO patients with non/mild calcification, those with moderate/severe calcification have higher procedural failure and complication rates, as well as poorer long-term prognosis, mainly due to an increase in cardiac death.

Objective To systematically evaluate the impact of cough enhancement techniques on weaning outcomes in adult patients under mechanical ventilation(MV).Methods Databases from the inception to 15th November,2024 were searched for randomised controlled trials(RCTs)on cough enhancement technique in MV patients.The searched databases were CNKI,Wanfang Data base,SinoMed,Vip,PubMed,Web of Science,Cochrane Library,Embase,and CINAHL.Literature and evidence quality were evaluated using Cochrane's evaluation tool for intervention research and the GRADE system,and data were extracted and analysed via Meta-analysis with Review Manager 5.3.Results A total of 27 studies were included,involving 2,322 patients(1,169 in the trial group and 1,153 in the control group).Compared with the control group,the trial group had shorter time of mechanical ventilation[MD=-1.40,95%CI(-1.83,-0.97),P<0.001],lower weaning failure rate[OR=0.48,95%CI(0.27,0.85),P=0.01],higher oxygenation index[MD=35.48,95%CI(21.53,49.43),P<0.001],lower pulmonary atelectasis incidence[OR=0.30,95%CI(0.18,0.49),P<0.001],greater sputum volume[MD=1.88,95%CI(0.76,3.01),P=0.001],shorter ICU stay[MD=-1.90,95%CI(-2.95,-0.85),P<0.001]and lower serum procalcitonin(PCT)[MD=-0.89,95%CI(-1.64,-0.14),P=0.02],all with statistically significant differences.However,there was no significant difference in the ventilator-associated pneumonia(VAP)between the two groups[OR=0.54,95%CI(0.21,1.35),P=0.19].Conclusion Cough enhancement techniques promote sputum discharge,improve infection and oxygenation,shorten mechanical ventilation and ICU stay,reduce weaning failure and atelectasis rates in MV patients.Further studies are required to reduce the incidence of VAP.