Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans ; Dental Cementum/injuries* ; Consensus ; Diagnosis, Differential ; Cone-Beam Computed Tomography ; Tooth Fractures/therapy*

AIM To investigate the effects of Yiqi Juanbi Formula on chondrocyte pyroptosis in rat models of collagen-induced arthritis(CIA).METHODS Fifty rats were subcutaneously injected at the tail base with an emulsion containing equal volumes of bovine type Ⅱ collagen and incomplete Freund's adjuvant(IFA)to establish the CIA models.These rats were then randomly assigned to the model group,the methotrexate group(0.35 mg/kg),and the low-dose,medium-dose,and high-dose Yiqi Juanbi Formula groups(9.4,18.7,37.4 g/kg),in contrast to the ten intact rats serving in the normal control group.Following four weeks of intragastric administration,the rats had their general conditions observed;their joint swelling and arthritis indices measured;their ankle joint pathology assessed by HE staining;their serum levels of IL-1β,IL-18 and TNF-ɑ detected by ELISA;their mRNA expressions of NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ in ankle cartilage quantified by RT-qPCR;their protein expressions of NF-κB,NLRP3 and Caspase-1 in ankle cartilage analyzed by Western blot;and their NLRP3 and GSDMD positive expressions in ankle cartilage examined by immunohistochemistry.RESULTS Compared to the control group,the model group showed significantly increased joint swelling and arthritis indices(P＜0.01);elevated serum levels of IL-1 β,IL-18 and TNF-ɑ(P＜0.01);pathological changes including cartilage surface defects,reduced cell count,altered cellular morphology,irregular cell arrangement,and significant inflammatory cell infiltration in synovial tissue;upregulated mRNA expressions of NF-κB,NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ(P＜0.01)and increased protein expressions of NF-κB,NLRP3 and Caspase-1(P＜0.01)in ankle cartilage;enhanced positive expressions of NLRP3 and GSDMD in ankle cartilage(P＜0.01).Compared to the model group,the groups intervened with methotrexate or medium-or high-dose Yiqi Juanbi Formula exhibited reduced joint swelling and arthritis indices(P＜0.01);alleviated pathological damage in ankle joints;decreased serum levels of IL-1β,IL-18 and TNF-ɑ(P＜0.01);downregulated mRNA expressions of NF-κB,NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ(P＜0.05,P＜0.01),and reduced protein expressions of NF-κB,NLRP3 and Caspase-1(P＜0.05,P＜0.01)in ankle cartilage;and diminished positive expressions of NLRP3 and GSDMD in ankle cartilage(P＜0.01).CONCLUSION Yiqi Juanbi Formula alleviates inflammation in CIA rats,potentially by inhibiting the activation of the NF-κB/NLRP3/Caspase-1 signaling pathway,thereby suppressing chondrocyte pyroptosis.

AIM To investigate the effects of Yiqi Juanbi Formula on chondrocyte pyroptosis in rat models of collagen-induced arthritis(CIA).METHODS Fifty rats were subcutaneously injected at the tail base with an emulsion containing equal volumes of bovine type Ⅱ collagen and incomplete Freund's adjuvant(IFA)to establish the CIA models.These rats were then randomly assigned to the model group,the methotrexate group(0.35 mg/kg),and the low-dose,medium-dose,and high-dose Yiqi Juanbi Formula groups(9.4,18.7,37.4 g/kg),in contrast to the ten intact rats serving in the normal control group.Following four weeks of intragastric administration,the rats had their general conditions observed;their joint swelling and arthritis indices measured;their ankle joint pathology assessed by HE staining;their serum levels of IL-1β,IL-18 and TNF-ɑ detected by ELISA;their mRNA expressions of NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ in ankle cartilage quantified by RT-qPCR;their protein expressions of NF-κB,NLRP3 and Caspase-1 in ankle cartilage analyzed by Western blot;and their NLRP3 and GSDMD positive expressions in ankle cartilage examined by immunohistochemistry.RESULTS Compared to the control group,the model group showed significantly increased joint swelling and arthritis indices(P＜0.01);elevated serum levels of IL-1 β,IL-18 and TNF-ɑ(P＜0.01);pathological changes including cartilage surface defects,reduced cell count,altered cellular morphology,irregular cell arrangement,and significant inflammatory cell infiltration in synovial tissue;upregulated mRNA expressions of NF-κB,NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ(P＜0.01)and increased protein expressions of NF-κB,NLRP3 and Caspase-1(P＜0.01)in ankle cartilage;enhanced positive expressions of NLRP3 and GSDMD in ankle cartilage(P＜0.01).Compared to the model group,the groups intervened with methotrexate or medium-or high-dose Yiqi Juanbi Formula exhibited reduced joint swelling and arthritis indices(P＜0.01);alleviated pathological damage in ankle joints;decreased serum levels of IL-1β,IL-18 and TNF-ɑ(P＜0.01);downregulated mRNA expressions of NF-κB,NLRP3,Caspase-1,GSDMD,IL-1β,IL-18 and TNF-ɑ(P＜0.05,P＜0.01),and reduced protein expressions of NF-κB,NLRP3 and Caspase-1(P＜0.05,P＜0.01)in ankle cartilage;and diminished positive expressions of NLRP3 and GSDMD in ankle cartilage(P＜0.01).CONCLUSION Yiqi Juanbi Formula alleviates inflammation in CIA rats,potentially by inhibiting the activation of the NF-κB/NLRP3/Caspase-1 signaling pathway,thereby suppressing chondrocyte pyroptosis.

Objective:To explore the efficacy of intensive repetitive transcranial magnetic stimulation (irTMS) in treatment-resistant depression (TRD) and its impact on cognitive function and systemic immune-inflammation index (SII).Methods:Forty-eight TRD patients were divided into observation group and control group using random number table method, with 24 patients in each group. The observation group was treated with irTMS, and the stimulation site was the left dorsolateral prefrontal lobe. The stimulation intensity was 110% of the motor threshold, and the stimulation frequency was 15 Hz. The stimulation interval was 26 s, and 3 000 pulses were stimulated each time. Stimulating 5 times per day, with an interval of 50 min, and continuous treatment for 5 days. The total stimulation amount for 5 days was 75 000 pulses. The control group was treated with pseudo stimulation. Before treatment (T0), 5 days after treatment (T1), and 1 month after treatment (T2), 17-item Hamilton depression scale (HAMD-17) was used to assess depressive mood. Evaluating cognitive function using the Wisconsin card sorting test.A fully automated blood cell analyzer was used to detect platelet count (PLT), neutrophil count (NC), and lymphocyte count (LC), calculate the systemic immune inflammation index (SII), SII=PLT × NC/LC. Statistical analysis was conducted using SPSS 20.0 software. The comparison between two sets of repeated measurement data was performed using repeated measurement analysis of variance.Simple effect analysis was performed if the interaction effect was significant.Pearson analysis was used for correlation testing.Results:The interaction effect between the time and group of HAMD-17 scores was significant ( F=121.784, P<0.05). The results of simple effects analysis showed that the HAMD-17 scores of the observation group at T1 and T2 ((12.07±4.08) and (14.78±4.99), respectively) were lower than those of the control group ((23.78±5.87) and (24.67±7.00), P<0.05). The treatment response rate and remission rate of the observation group at T1 were higher than those of the control group ( χ2=4.090, 7.378, both P<0.05).The treatment response rate and remission rate of the observation group at T2 were higher than those of the control group ( χ2=4.463, 4.547, both P<0.05). The time and group interaction effects of the percentage of correct response and conceptualization level in the Wisconsin card sorting test were significant ( F=30.087, 20.004, P<0.05). The results of simple effects analysis showed that the percentage of correct response and conceptualization level in the observation group at T1 and T2 were higher than those in the control group (all P<0.05). The time and group interaction effect of SII was significant ( F=8.173, P<0.05). The results of simple effects analysis showed that there was no statistically significant difference in SII between the two groups at T0 ( P>0.05). The SII at T1 and T2 in the observation group was lower than that in the control group ( P<0.05). In the observation group, the changes in SII from T2 to T0 was positively correlated with the change in HAMD-17 scores ( r=0.527, P<0.05), and negatively correlated with the percentage of correct responses to the Wisconsin card sorting test ( r=-0.412, P<0.05) and the percentage of conceptualization level ( r=-0.411, P<0.05). Conclusion:irTMS is effective in treating TRD and can improve patients' cognitive function and immune inflammation damage.

Objective:To explore the efficacy of intensive repetitive transcranial magnetic stimulation (irTMS) in treatment-resistant depression (TRD) and its impact on cognitive function and systemic immune-inflammation index (SII).Methods:Forty-eight TRD patients were divided into observation group and control group using random number table method, with 24 patients in each group. The observation group was treated with irTMS, and the stimulation site was the left dorsolateral prefrontal lobe. The stimulation intensity was 110% of the motor threshold, and the stimulation frequency was 15 Hz. The stimulation interval was 26 s, and 3 000 pulses were stimulated each time. Stimulating 5 times per day, with an interval of 50 min, and continuous treatment for 5 days. The total stimulation amount for 5 days was 75 000 pulses. The control group was treated with pseudo stimulation. Before treatment (T0), 5 days after treatment (T1), and 1 month after treatment (T2), 17-item Hamilton depression scale (HAMD-17) was used to assess depressive mood. Evaluating cognitive function using the Wisconsin card sorting test.A fully automated blood cell analyzer was used to detect platelet count (PLT), neutrophil count (NC), and lymphocyte count (LC), calculate the systemic immune inflammation index (SII), SII=PLT × NC/LC. Statistical analysis was conducted using SPSS 20.0 software. The comparison between two sets of repeated measurement data was performed using repeated measurement analysis of variance.Simple effect analysis was performed if the interaction effect was significant.Pearson analysis was used for correlation testing.Results:The interaction effect between the time and group of HAMD-17 scores was significant ( F=121.784, P<0.05). The results of simple effects analysis showed that the HAMD-17 scores of the observation group at T1 and T2 ((12.07±4.08) and (14.78±4.99), respectively) were lower than those of the control group ((23.78±5.87) and (24.67±7.00), P<0.05). The treatment response rate and remission rate of the observation group at T1 were higher than those of the control group ( χ2=4.090, 7.378, both P<0.05).The treatment response rate and remission rate of the observation group at T2 were higher than those of the control group ( χ2=4.463, 4.547, both P<0.05). The time and group interaction effects of the percentage of correct response and conceptualization level in the Wisconsin card sorting test were significant ( F=30.087, 20.004, P<0.05). The results of simple effects analysis showed that the percentage of correct response and conceptualization level in the observation group at T1 and T2 were higher than those in the control group (all P<0.05). The time and group interaction effect of SII was significant ( F=8.173, P<0.05). The results of simple effects analysis showed that there was no statistically significant difference in SII between the two groups at T0 ( P>0.05). The SII at T1 and T2 in the observation group was lower than that in the control group ( P<0.05). In the observation group, the changes in SII from T2 to T0 was positively correlated with the change in HAMD-17 scores ( r=0.527, P<0.05), and negatively correlated with the percentage of correct responses to the Wisconsin card sorting test ( r=-0.412, P<0.05) and the percentage of conceptualization level ( r=-0.411, P<0.05). Conclusion:irTMS is effective in treating TRD and can improve patients' cognitive function and immune inflammation damage.

Objective To investigate the risk factors for bronchopulmonary dysplasia(BPD)in twin preterm infants with a gestational age of<34 weeks,and to provide a basis for early identification of BPD in twin preterm infants in clinical practice.Methods A retrospective analysis was performed for the twin preterm infants with a gestational age of<34 weeks who were admitted to 22 hospitals nationwide from January 2018 to December 2020.According to their conditions,they were divided into group A(both twins had BPD),group B(only one twin had BPD),and group C(neither twin had BPD).The risk factors for BPD in twin preterm infants were analyzed.Further analysis was conducted on group B to investigate the postnatal risk factors for BPD within twins.Results A total of 904 pairs of twins with a gestational age of<34 weeks were included in this study.The multivariate logistic regression analysis showed that compared with group C,birth weight discordance of>25%between the twins was an independent risk factor for BPD in one of the twins(OR=3.370,95%CI:1.500-7.568,P<0.05),and high gestational age at birth was a protective factor against BPD(P<0.05).The conditional logistic regression analysis of group B showed that small-for-gestational-age(SGA)birth was an independent risk factor for BPD in individual twins(OR=5.017,95%CI:1.040-24.190,P<0.05).Conclusions The development of BPD in twin preterm infants is associated with gestational age,birth weight discordance between the twins,and SGA birth.

Objective:To investigate the correlation between the levels of CC chemokine ligand 2 (CCL2) and periostin (POSTN) in serum and alveolar lavage fluid of patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) complicated with respiratory virus infection and lung function.Methods:From March 2020 to March 2023, 96 patients with acute exacerbation of COPD admitted to our hospital were collected. Among them, 34 patients with concurrent respiratory virus infection were included in the infected group, and 62 patients without respiratory virus infection were included in the uninfected group. Enzyme linked immunosorbent assay (ELISA) was applied to detect the expression levels of CCL2 and POSTN in serum and alveolar lavage fluid. Pearson method was applied to analyze the correlation between CCL2 and POSTN levels in serum and alveolar lavage fluid of infected patients and lung function indicators.Results:The levels of CCL 2 ( t=12.633, 9.253 2, 2) and POSTN ( t=12.370, 7.383) were significantly increased in the infected group compared with the uninfected group ( P<0.05). Compared with the uninfected group, the 6-minute walking test (6 MWT), peak expiratory flow rate (peak expiratory flow, PEF), forced expiratory volume at the first second (forced expiratory volume in one second, FEV 1), and the forced lung capacity (forced vital capacity, FVC), FEV 1/FVC, and maximum middle breath mean flow rate (maximal mid-expiratory flow curve, MMEF) were significantly lower ( t=14.141, 24.165, 22.421, 21.223, 5.278, 29.456, P<0.05). Correlation analysis showed that the levels of CCL2 and POSTN in the serum and alveolar lavage fluid of the infected group were negatively correlated with the levels of 6MWT, PEF, FEV1, FVC, FEV1/FVC, and MMEF ( P<0.05). Conclusions:CCL2 and POSTN levels were highly expressed in serum and alveolar lavage fluid of patients with respiratory virus infection during acute exacerbation of COPD, which were closely related to lung function.

AIM: To analyze the characteristics of conventional ultrasound and contrast-enhanced ultrasound(CEUS)in choroidal metastatic carcinoma and choroidal hemangioma, and to explore the clinical application value of conventional ultrasound combined with CEUS in the differential diagnosis of choroidal metastatic carcinoma and choroidal hemangioma.METHODS: The conventional ultrasound and CEUS data of 17 cases(17 eyes)with choroidal metastatic carcinoma and 35 cases(35 eyes)with choroidal hemangioma treated in the Fourth People's Hospital of Shenyang from May 2010 to January 2016 was retrospectively analyzed. The two-dimensional color ultrasound and the color Doppler characteristics of the tumors were observed by conventional ultrasound. CEUS was used to observe the contrast agent perfusion intensity and changes of tumors, and CEUS dynamic data was analyzed to obtain TI curves and CEUS parameters.RESULTS: Conventional ultrasound examination showed that choroidal metastatic carcinoma had lower echo, less uniform, more uniform uplift, and wavy surface compared with choroidal hemangioma. The accuracy of diagnosis of choroidal metastatic carcinoma and choroidal hemangioma were 59%(10/17)and 68%(24/35)respectively. CEUS examination showed that the TI curve types of choroidal metastatic carcinoma were mostly in fast-in and fast-out mode(14/17), while the TI curve types of choroidal hemangioma were mostly in fast-in and slow-out mode(31/35). Both maximum intensity(IMAX)and rise time(RT)of choroid metastatic carcinoma were lower than those of choroid hemangioma(P<0.05). The accuracy of conventional ultrasound combined with CEUS in the diagnosis of choroidal metastatic carcinoma and choroidal hemangioma was 82%(14/17)and 88%(31/35)respectively.CONCLUSION: Conventional ultrasound combined with CEUS can provide a relatively reliable imaging basis for the differential diagnosis of choroidal metastatic carcinoma and choroidal hemangioma, which is helpful for the early qualitative diagnosis of the two tumors.

China has classified the Corona Virus Disease 2019(COVID-19) as a statutory category B infectious disease and managed it according to Category B since January 8, 2023.In view that Omicron variant is currently the main epidemic strain in China, in order to guide the treatment of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) infection in children with the times, refer to the Diagnosis and Treatment Protocol for Novel Coronavirus Infection (Trial 10 th Edition), Expert Consensus on Diagnosis, Treatment and Prevention of Novel Coronavirus Infection in Children (Fourth Edition) and the Diagnosis and Treatment Strategy for Pediatric Related Viral Infections.The Expert Consensus on the Diagnosis, Treatment and Prevention of Novel Coronavirus Infection in Children (Fifth Edition) has been formulated and updated accordingly on related etiology, epidemiology, pathogenic mechanism, clinical manifestations, auxiliary examination, diagnosis and treatment, and added key points for the treatment of COVID-19 related encephalopathy, fulminating myocarditis and other serious complications for clinical reference.