Objective:To investigate the incidence of hypomineralized second primary molars (HSPM) and deciduous teeth caries in school-aged children of Kaifeng City, and to discuss the association between HSPM and deciduous teeth caries, providing scientific guidance for clinical prevention and treatment.Methods:A cross-sectional study was carried out on first-grade children aged 6-7 years in five primary schools chosen from the eastern, western, southern, northern, and central areas of Kaifeng City by cluster random sampling method. The European Academy of Pediatric Dentistry criteria was used for scoring HSPM. The International Caries Detection and Assessment System (ICDAS-Ⅱ) was used to evaluate caries status.Results:This cross-sectional study was with a sample of 913 children. The prevalence of HSPM was 8.76% (80/913), with 39 boys and 41 girls, the most common type of which was atypical caries [35.00% (28/80)]. Regarding the distribution of HSPM, the incidence in maxilla [6.13% (56/913)] showed no statistically significant difference with that in the mandible [5.70% (52/913)] (χ2=0.16, P=0.692). In terms of severity, 56 cases were severe and 24 cases were mild. The association between HSPM and deciduous teeth caries was analyzed. The results showed that 56 had caries on their second primary molars among the 80 HSPM children. Children with HSPM had an increased risk of second deciduous molar decay compared to non-HSPM children ( OR=1.94, 95 %CI: 1.18-3.19, P<0.05); meanwhile, the deciduous teeth of HSPM children were more prone to suffer caries than those of non-HSPM children ( OR=2.33, 95 %CI: 1.26-4.29, P<0.05). Conclusions:The HSPM prevalence in school-aged children of Kaifeng City was 8.76%. Child with HSPM was more likely to have deciduous teeth caries than non-HSPM child. Special attention should be paid to children with HSPM after the eruption of affected molars.

BACKGROUND: The available evidence regarding the benefits of percutaneous coronary intervention (PCI) on patients receiving dialysis with coronary artery disease (CAD) is limited and inconsistent. This study aimed to evaluate the association between PCI and clinical outcomes as compared with medical therapy alone in patients undergoing dialysis with CAD in China. METHODS: This multicenter, retrospective study was conducted in 30 tertiary medical centers across 12 provinces in China from January 2015 to June 2021 to include patients on dialysis with CAD. The primary outcome was major adverse cardiovascular events (MACE), defined as a composite of cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke. Secondary outcomes included all-cause death, the individual components of MACE, and Bleeding Academic Research Consortium criteria types 2, 3, or 5 bleeding. Multivariable Cox proportional hazard models were used to assess the association between PCI and outcomes. Inverse probability of treatment weighting (IPTW) and propensity score matching (PSM) were performed to account for potential between-group differences. RESULTS: Of the 1146 patients on dialysis with significant CAD, 821 (71.6%) underwent PCI. After a median follow-up of 23.0 months, PCI was associated with a 43.0% significantly lower risk for MACE (33.9% [ n  = 278] vs . 43.7% [ n  = 142]; adjusted hazards ratio 0.57, 95% confidence interval 0.45-0.71), along with a slightly increased risk for bleeding outcomes that did not reach statistical significance (11.1% vs . 8.3%; adjusted hazards ratio 1.31, 95% confidence interval, 0.82-2.11). Furthermore, PCI was associated with a significant reduction in all-cause and cardiovascular mortalities. Subgroup analysis did not modify the association of PCI with patient outcomes. These primary findings were consistent across IPTW, PSM, and competing risk analyses. CONCLUSION This study indicated that PCI in patients on dialysis with CAD was significantly associated with lower MACE and mortality when comparing with those with medical therapy alone, albeit with a slightly increased risk for bleeding events that did not reach statistical significance.
Humans ; Percutaneous Coronary Intervention/methods* ; Male ; Female ; Coronary Artery Disease/drug therapy* ; Retrospective Studies ; Renal Dialysis/methods* ; Middle Aged ; Aged ; China ; Proportional Hazards Models ; Treatment Outcome

Objective:To investigate the incidence of hypomineralized second primary molars (HSPM) and deciduous teeth caries in school-aged children of Kaifeng City, and to discuss the association between HSPM and deciduous teeth caries, providing scientific guidance for clinical prevention and treatment.Methods:A cross-sectional study was carried out on first-grade children aged 6-7 years in five primary schools chosen from the eastern, western, southern, northern, and central areas of Kaifeng City by cluster random sampling method. The European Academy of Pediatric Dentistry criteria was used for scoring HSPM. The International Caries Detection and Assessment System (ICDAS-Ⅱ) was used to evaluate caries status.Results:This cross-sectional study was with a sample of 913 children. The prevalence of HSPM was 8.76% (80/913), with 39 boys and 41 girls, the most common type of which was atypical caries [35.00% (28/80)]. Regarding the distribution of HSPM, the incidence in maxilla [6.13% (56/913)] showed no statistically significant difference with that in the mandible [5.70% (52/913)] (χ2=0.16, P=0.692). In terms of severity, 56 cases were severe and 24 cases were mild. The association between HSPM and deciduous teeth caries was analyzed. The results showed that 56 had caries on their second primary molars among the 80 HSPM children. Children with HSPM had an increased risk of second deciduous molar decay compared to non-HSPM children ( OR=1.94, 95 %CI: 1.18-3.19, P<0.05); meanwhile, the deciduous teeth of HSPM children were more prone to suffer caries than those of non-HSPM children ( OR=2.33, 95 %CI: 1.26-4.29, P<0.05). Conclusions:The HSPM prevalence in school-aged children of Kaifeng City was 8.76%. Child with HSPM was more likely to have deciduous teeth caries than non-HSPM child. Special attention should be paid to children with HSPM after the eruption of affected molars.

Objective:To investigate the association between anti-rituximab antibodies (ARA) and relapse after rituximab (RTX) therapy in children with frequently relapsing or steroid-dependent nephrotic syndrome (FRNS or SDNS).Methods:A retrospective cohort study was conducted. Clinical and laboratory data were collected from 48 FRNS or SDNS children treated with RTX in the Department of Pediatrics, General Hospital of Eastern Theater Command, between April 2024 and October 2024. Data included RTX dosing frequency, relapse events, peripheral CD20? B-cell counts, and ARA levels. With a 6-month observation period after the last RTX therapy, the children were divided into an ARA-positive group and an ARA-negative group based on ARA test results. Chi-square test, independent sample t-test, or Mann-Whitney U test were used to compare relapse rates and laboratory indicators between the two groups. The predictive value of ARA levels for relapse was evaluated using univariate receiver operating characteristic (ROC) curve analysis. Results:Among the 48 children (36 males, 12 females), the age of disease onset was 3.5 (2.0, 6.0) years, the ages at the first and last RTX treatments were 7.0 (5.0, 12.0) years and 9.5 (7.0, 13.0) years, respectively. The overall ARA positive rate was 29% (14/48). The relapse rate in the ARA-positive group was significantly higher than that in the negative group ( P<0.05). The ARA level was 0.01 (0.01, 5.88) μg/L, and all 12 children with ARA levels >5.88 μg/L relapsed. ROC curve analysis showed that ARA levels predicted relapse after RTX treatment in FRNS or SDNS children with an area under the curve (AUC) of 0.73, sensitivity of 0.50, specificity of 1.00, and an optimal cut-off value of 5.02 μg/L. All children received single-dose RTX therapy, with no significant difference in treatment frequency between the two groups ( P>0.05). At 3 months after the last rituximab therapy, CD20? B cell counts were significantly higher in the ARA-positive group ( P<0.05). During follow-up, 15% (7/48) of the children experienced infusion-related adverse reactions, with no significant difference in incidence between the two groups ( P>0.05). Conclusion:ARA is significantly associated with relapse in FRNS or SDNS children after RTX therapy.

Objective:To investigate the association between anti-rituximab antibodies (ARA) and relapse after rituximab (RTX) therapy in children with frequently relapsing or steroid-dependent nephrotic syndrome (FRNS or SDNS).Methods:A retrospective cohort study was conducted. Clinical and laboratory data were collected from 48 FRNS or SDNS children treated with RTX in the Department of Pediatrics, General Hospital of Eastern Theater Command, between April 2024 and October 2024. Data included RTX dosing frequency, relapse events, peripheral CD20? B-cell counts, and ARA levels. With a 6-month observation period after the last RTX therapy, the children were divided into an ARA-positive group and an ARA-negative group based on ARA test results. Chi-square test, independent sample t-test, or Mann-Whitney U test were used to compare relapse rates and laboratory indicators between the two groups. The predictive value of ARA levels for relapse was evaluated using univariate receiver operating characteristic (ROC) curve analysis. Results:Among the 48 children (36 males, 12 females), the age of disease onset was 3.5 (2.0, 6.0) years, the ages at the first and last RTX treatments were 7.0 (5.0, 12.0) years and 9.5 (7.0, 13.0) years, respectively. The overall ARA positive rate was 29% (14/48). The relapse rate in the ARA-positive group was significantly higher than that in the negative group ( P<0.05). The ARA level was 0.01 (0.01, 5.88) μg/L, and all 12 children with ARA levels >5.88 μg/L relapsed. ROC curve analysis showed that ARA levels predicted relapse after RTX treatment in FRNS or SDNS children with an area under the curve (AUC) of 0.73, sensitivity of 0.50, specificity of 1.00, and an optimal cut-off value of 5.02 μg/L. All children received single-dose RTX therapy, with no significant difference in treatment frequency between the two groups ( P>0.05). At 3 months after the last rituximab therapy, CD20? B cell counts were significantly higher in the ARA-positive group ( P<0.05). During follow-up, 15% (7/48) of the children experienced infusion-related adverse reactions, with no significant difference in incidence between the two groups ( P>0.05). Conclusion:ARA is significantly associated with relapse in FRNS or SDNS children after RTX therapy.

Objective:To explore the diagnostic potential of magnetic resonance imaging (MRI) in children with nutcracker syndrome (NCS).Methods:A retrospective analysis was performed in patients with suspected NCS(155 cases) diagnosed in the Department of Pediatrics, General Hospital of Eastern Theater Command from January 2017 to July 2020.Suspected NCS was diagnosed primarily based on clinical signs or symptoms, laboratory testing, and imaging reports, and other conditions that may cause hematuria and/or proteinuria were excluded.MRI examination was performed in all patients.According to the diagnostic criteria of NCS, patients diagnosed as NCS with the compression of the left renal vein (LRV) were included in the NCS group(58 cases), and those without the compression of the LRV or with the compression of the LRV but was not consistent with the diagnosis of NCS were included in the control group(97 cases). t test, Mann- Whitney U test and χ2 test were used to compare the baseline characteristics, clinical characteristics and imaging characteristics of the children in the nutcracker group and the control group.Receiver operating characteristic curves were plotted to explore the diagnostic potential of MRI in children with NCS. Results:(1)The area under curve of the angle between the superior mesenteric artery (SMA) and the aorta, compression ratio (CR) and beak sign in diagnosing NCS in children were 0.870, 0.895 and 0.878, respectively.(2)The optimal cut-off values of the angle between the SMA and the aorta and CR were 36.8° and 3.99, respectively.(3)The specificity of the angle between the SMA and the aorta<36.8°, beak sign, CR>3.99, the angle between the SMA and the aorta combined with beak sign, the angle between the SMA and the aorta<36.8° combined with CR>3.99, and beak sign combined with CR>3.99 in diagnosing NCS in children were 82.5%, 93.8%, 93.5%, 97.9%, 95.9% and 97.9%, respectively.Conclusions:Children with the angle between the SMA and the aorta<36.8°, beak sign and CR>3.99 suggested on MRI scans should be highly suspected of NCS.The beak sign has the highest specificity in the diagnosis of NCS in children, and the combination of any two parameters has a higher specificity than a single parameter.

Objective:To analyze the clinical and prognosis of primary membranous nephropathy (PMN) in children with positive glomerular M-type phospholipase A2 receptor (PLA2R).Methods:A total of 69 children diagnosed with PMN by renal biopsy admitted to the Department of Pediatrics of Eastern Theater Command General Hospital from January 2006 to December 2018 were retrospectively analyzed, including 40 males and 29 females, with an average age of 14.86 years.According to the immunofluorescence of renal pathology, they were divided into PLA2R positive group and PLA2R negative group.Pathological features between 2 groups were compared by the t test, Mann- Whitney U test and Chi- square test.Kaplan-Meier method was used to compare the long-term renal survival rate and cumulative remission rate between 2 groups. Results:A total of 69 pediatric PMN patients were included.The po-sitive rates of serum anti-PLA2R antibody and positive expression of PLA2R in renal tissues were 53.6% (37 cases) and 82.6% (57 cases), respectively.The proportion of children with clinical manifestations of large proteinuria [55 cases(96.5% ) vs.9 cases(75.0%), P=0.034] was significantly higher in the PLA2R positive group than that of the PLA2R negative group.Blood urea nitrogen level was significantly higher in the PLA2R positive group than that of PLA2R negative group[1.14(0.93, 1.54) mg/L vs.0.80 (0.44, 1.18) mg/L, P=0.049], while estimate glomerular filtration rate(eGFR) [162.26 (139.81, 185.53) mL/(min·1.73 m 2) vs.199.52 (157.58, 212.01) mL/(min·1.73 m 2), P=0.034] and serum IgG [3.58 (2.50, 5.43) g/L vs.5.14 (4.35, 6.03) g/L, P=0.016] were significantly lower.The cumulative remission rate was significantly higher in the PLA2R negative group than that of PLA2R positive group ( P<0.001). The 24 h urinary protein ≥50 mg/kg ( HR=0.119, 95% CI: 0.021-0.595, P=0.010)was an independent risk factor for renal prognosis, and PLA2R( HR=0.263, 95% CI: 0.125-0.551, P<0.001) and 24 h urinary protein ≥50 mg/kg ( HR=0.568, 95% CI: 0.125-0.551, P=0.041)were independent predictors of urinary protein remission.PLA2R ( HR=1.020, 95% CI: 0.698-1.682, P=0.656)was not associated with renal prognosis. Conclusions:The severity of PMN in children with positive PLA2R was higher than that in those with negative PLA2R.The long-term cumulative remission rate of PLA2R negative children with PMN was higher than that of PLA2R positive children.

Objective: To investigate the expression of uteroglobin-related protein 1(UGRP1) in thyroid cells induced by interleukin-1β(IL-1β) and its correlation with Fas/FasL mediated apoptosis. Methods: Control group, IL-1β group and IL-1β+anti-FasL antibody group were established, rat thyroid cells(FRTL-5 cells) were culturedin vitro. The expression levels of UGRP1 and Fas mRNA of each group were detected by real-time PCR and the apoptosis rate of each group was detected by flow cytometry. Results: Compared with control group, the mRNA expression levels of UGRP1 and Fas in IL-1β group and IL-1β+anti-FasL antibody group increased, and the difference was statistically significant(P<0.05). Compared with control group, the early apoptosis rate of thyroid cells in IL-1β group increased(7.49%±1.91%vs28.46%±3.17%), and the difference was statistically significant(P<0.001). Compared with IL-1β group, the early apoptosis rate of thyroid cells in IL-1β+anti-FasL antibody group decreased(28.46%±3.17%vs19.20%±1.75%), and the difference was statistically significant(P<0.05). Compared with IL-1β group, the expression levels of UGRP1 mRNA(2.22±0.31vs2.66±0.28) and Fas mRNA(2.75±0.18vs3.03±0.16) in IL-1β+anti-FasL antibody group were not significantly different(P>0.05). Conclusion IL-1β induces the high expression of UGRP1 and Fas and apoptosis of thyroid cells, the high expression of UGRP1 is not associated with Fas/FasL mediated apoptosis.

Objective:To analyze the clinicopathologic features and prognosis of children with Henoch-Sch?nlein purpura nephritis (HSPN).Methods:The clinicopathological data of children with HSPN who were followed up for more than 5 years and underwent renal biopsy in Jinling Hospital affiliated to Medical School of Nanjing University from January 2001 to June 2015 were retrospectively analyzed. The follow-up endpoint event was defined as estimated glomerular filtration rate (eGFR)<90 ml·min -1·(1.73 m 2) -1. Participants were divided into two groups according to whether the children had reached the primary endpoint event or not. Cox proportional hazards model was used to analyze the influencing factors of renal poor prognosis in children with HSPN. Kaplan-Meier survival curve method was used for survival analysis, and log-rank test was used to compare the difference of renal cumulative survival rate between segmental sclerosis/adhesion (S1) group and non-segmental sclerosis/adhesion (S0) group. Receiver operating characteristic curve (ROC curve) and area under the curve ( AUC) were used to evaluate the diagnostic value. Results:A total of 130 children with HSPN were enrolled in the study. The median onset age was 11.7(8.6, 13.3) years old, of whom 71 cases were males (54.6%). At a median follow-up time of 100.0(75.8, 119.0) months, 12 cases (9.23%) with HSPN reached the primary endpoint event. Compared with the non-endpoint event group, the endpoint event group had higher proportion of hypertension, higher levels of 24-hour urinary protein, serum cholesterol, serum uric acid, and serum creatinine, and lower levels of serum albumin (all P<0.05). There was no statistical difference in treatment between the two groups (all P>0.05). In terms of pathological features, compared with the non-endpoint event group, the endpoint event group had higher proportion of mesangial hyperplasia (M1), S1, tubular atrophy/interstitial fibrosis (T1/T2) and Glomerulus-Bowman's capsule adhesion (all P<0.05). Multivariate Cox regression model showed that S1 was significantly correlated with renal poor prognosis ( HR=7.739, 95% CI 1.422-42.114, P=0.018). As was revealed in a Kaplan-Meier plot, renal cumulative survival rate in the S1 group was significantly lower than that in the S0 group (log-rank χ2=17.069, P<0.001). The ROC curve showed S1 accurately predicted the outcome ( AUC=0.710, 95% CI 0.549-0.872) with specificity of 0.667(95% CI 0.349-0.901) and specificity of 0.754(95% CI 0.667-0.829). Conclusions:S1 is an independent risk factor affecting renal poor prognosis and has a diagnostic value.

Objective:To analyse the clinical and prognosis of C1q deposition in children with primary membranous nephropathy (PMN).Methods:A retrospective analysis was conducted in 177 children with PMN who were diagnosed by renal biopsy in the Eastern Theater Cornmand General Hospital from July 2005 to September 2013.Patients were divided into C1q deposit group and C1q non-deposit group according to the immunofluorescence staining of C1q.Clinical and pathological characteristics, treatment response, and long-term renal prognosis were compared between the 2 groups.Results:A total of 177 pediatric patients with PMN were included, involving 98 boys and 79 girls with a median age of 192.0 months.During an follow-up of (52.4±35.6) months, 7 cases(4.0%) progressed end-stage renal disease (ESRD), and 14 cases(7.9%) developed ESRD or renal dysfunction.The blood IgG level of C1q deposit group was higher than that of C1q non-deposit group [(5.10±2.51) g/L vs.(4.34±2.10) g/L, t=2.110, P=0.036]. The frequency of glomerular C4 deposits in C1q deposit group was significantly higher than that of C1q non-deposit group (34.7% vs.2.9%, χ2=32.567, P<0.001). The Kaplan-Meier survival analysis showed that there were no differences in cumulative renal survival rate of ESRD ( P=0.561) and cumulative incidence rate of remission ( P=0.291) between groups.The Logistic regression analysis demonstrated that C1q deposition was not correlated with treatment responses ( P=0.587). Univariate COX regression analysis demonstrated that the male gender ( HR=8.578, 95% CI: 1.120-65.689, P=0.039) and no remission ( HR=0.053, 95% CI: 0.017-0.171, P<0.001) were risk factors for renal dysfunction in children with PMN.Multivariate COX regression analysis reveled that no remission ( HR=21.858, 95% CI: 5.595-85.387, P<0.001) and C1q deposition ( HR=0.116, 95% CI: 0.023-0.584, P=0.009) were independent risk factors for renal dysfunction in children with PMN. Conclusions:C1q deposition was an independent risk factor for renal dysfunction in children with PMN.The classical pathway does occur in some PMN patients, which plays an essential role in mediating kidney injury.