Objective:To discuss the efficacy of temporomandibular joint disc anchoring(TMJDA)in the treatment of anterior disc displacement without reduction(ADDWoR)from clinical and imaging perspectives,in order to improve the clinicians'understanding of this surgical approach.Methods:Twenty-one ADDWoR patients who underwent TMJDA were retrospectively collected,involving a total of 25 temporomandibular joints(TMJs).The maximum mouth opening,visual analogue scale(VAS)score for pain,and Helkimo index were measured preoperatively,1 month postoperatively,and 6 months postoperatively in all the patients.Postoperative complications and satisfaction questionnaires were designed for the patients to self-evaluate the efficacy,and their magnetic resonance imaging(MRI)findings were assessed.Results:Compared with preoperative period,the maximum mouth opening at 1 month and 6 months postoperatively was significantly increased(P<0.05);compared with 1 month postoperatively,the maximum mouth opening at 6 months postoperatively was significantly increased(P<0.05).Compared with preoperative period,the VAS scores at 1 month and 6 months postoperatively were significantly decreased(P<0.05);compared with 1 month postoperatively,the VAS score at 6 months postoperatively was significantly decreased(P<0.05).Compared with preoperative period,the percentages of the patients with Di 0 and DiⅠ scores were significantly increased(P<0.05),while those with DiⅡand DiⅢ scores were significantly decreased(P<0.05),indicating significant improvement in TMJ function after surgery.Among the 21 ADDWoR patients,14(66.67%)were satisfied and 7(33.33%)were basically satisfied.Compared with preoperative period,the disc length was significantly increased postoperatively(P<0.01),while no significant difference was observed in condylar height(P>0.05);all displaced discs were repositioned postoperatively;among the 25 joints,23(92.00%)were evaluated as"excellent"and 2(8.00%)were evaluated as"good".No patients experienced postoperative facial nerve injury,local alopecia,surgical area depression,salivary fistula,or Frey syndrome;3 patients(3 joints)developed numbness in the preauricular area within 24 hours postoperatively,which resolved by the 6-month follow-up.Conclusion:TMJDA for the treatment of ADDWoR can stably reposition the disc,significantly improve mouth opening and pain levels,with a low incidence of postoperative complications.

Objective:To explore the correlation between perfusion parameters of multi-slice spiral CT and serum costimulating molecules B7 family 3(B7-H3), alpha-fetoprotein anisoplast 3(AFP-L3) and its diagnostic value in hepatocellular carcinoma.Methods:Fifty patients with hepatocellular carcinoma admitted to the Huzhou First People′s Hospital from May 2021 to May 2022 (study group) and 40 healthy subjects who participated in physical examination during the same period (control group) were retrospectively selected as the study objects. Perfusion imaging parameters of multi-slice spiral CT and serum B7-H3 and AFP-L3 levels were compared between the two groups. Pearson test and receiver operating characteristic (ROC) curve were used to analyze the correlation between perfusion parameters of multi-slice spiral CT and serum B7-H3 and AFP-L3 levels and its diagnostic value in hepatocellular carcinoma.Results:The levels of blood flow (BF), hepatic artery perfusion (AP), blood volume (BV), mean transit time (MTT) and serum levels of B7-H3 and AFP-L3 in the study group were higher than those in the control group: (213.72 ± 35.01) ml/(100 g·min) vs. (126.17 ± 14.01) ml/(100 g·min), (152.37 ± 30.45) ml/(100 g·min) vs. (18.21 ± 1.21) ml/(100 g·min), (25.89 ± 3.01) ml/(100 g·min) vs. (23.62 ± 2.37) ml/(100 g·min), (19.32 ± 3.58) s vs. (5.12 ± 1.03) s, (401.35 ± 42.37) ng/L vs. (221.38 ± 23.01) ng/L, (353.47 ± 40.35) mg/L vs. (291.12 ± 23.45) mg/L, there were statistical differences ( P<0.05). The results of Pearson test showed that BF, AP, BV, MTT were positively correlated with serum B7-H3 and AFP-L3 levels in hepatocellular carcinoma patients ( P<0.05). ROC curve analysis results showed that the area under the curve of BF, AP, BV and MTT combined diagnosis of hepatocellular carcinoma was higher than that of single index ( P<0.05). Conclusions:Multi-slice spiral CT perfusion parameters BF, AP, BV, MTT and serum levels of B7-H3, AFP-L3 are increase and have positively correlated in the hepatocellular carcinoma patients, and multi-slice spiral CT perfusion parameters have high diagnostic value for hepatocellular carcinoma.

Objective To establish and evaluate a mouse model of chronic obstructive pulmonary disease(COPD)induced by cigarette smoke(CS).Methods Forty BALB/c mice were divided randomly into a control group and a CS group.Mice in the CS group were subjected to passive smoking for 20 weeks and a COPD model was established.Morphological changes in the organs and lung,heart,liver,and kidney fibrosis were observed by hematoxylin-eosin(HE)and Masson staining.Lung,cardiac,and brain cognitive function were evaluated by pulmonary function testing,small-animal ultrasound,and Morris water maze trials.Tumor necrosis factor-α(TNF-α),interleukin(IL)-6 and IL-1β levels in lung and brain tissues were detected by ELISA.Liver and renal functions were measured by biochemical method.Results The alveolar septum was narrowed or broken in mice in the CS group,and the adjacent alveolar cavity was enlarged and fused,consistent with the pathological changes of COPD.Neuronal degeneration and necrosis were observed in the hippocampus,but there were no significant morphological changes in other organs.Masson staining showed no obvious fibrosis in the lung,heart,liver,or kidney in CS-group mice.The result of pulmonary function tests showed that the forced expiratory volume in 0.1 second/forced vital capacity(FEV 0.1/FVC)and dynamic compliance were significantly decreased in the CS group compared with the control group,while airway resistance was obviously increased.Cognitive impairment in mice in the CS group was confirmed in the Morris water maze trial.TNF-α,IL-6,and IL-1β levels in lung and brain tissues were higher in the CS group compared with the control group.There were no significant differences in cardiac,liver,and renal functions between the groups.Conclusions A mouse model of COPD can be established by CS exposure for 20 weeks.Lung histomorphology,lung function,brain cognitive function,and levels of inflammatory factors can be used as indicators to evaluate the success of the model.

Breast cancer is the most common malignant tumor in women and poses a serious threat to their lives and health.Quantitative relaxation parameters are the inherent physical parameters of tissues,which can reflect fine structural characteristics as well as physio-logical and pathological conditions of tissues to a certain extent.Moreover,these parameters offer a real-time,noninvasive measurement method.Currently,quantitative relaxation parameters of magnetic resonance can be determined using traditional multi-echo spin-echo(MESE)T2 mapping techniques and emerging magnetic resonance image complication(MAGiC)techniques.Analysis of tissues using quantitative relaxation parameters can provide valuable clinical diagnostic information.This study reviews the application of quantitative relaxation parameters of magnetic resonance in breast cancer,aiming to provide insights into differential diagnosis,classification,treat-ment planning,and prognosis assessment.

Objective To establish and evaluate a mouse model of chronic obstructive pulmonary disease(COPD)induced by cigarette smoke(CS).Methods Forty BALB/c mice were divided randomly into a control group and a CS group.Mice in the CS group were subjected to passive smoking for 20 weeks and a COPD model was established.Morphological changes in the organs and lung,heart,liver,and kidney fibrosis were observed by hematoxylin-eosin(HE)and Masson staining.Lung,cardiac,and brain cognitive function were evaluated by pulmonary function testing,small-animal ultrasound,and Morris water maze trials.Tumor necrosis factor-α(TNF-α),interleukin(IL)-6 and IL-1β levels in lung and brain tissues were detected by ELISA.Liver and renal functions were measured by biochemical method.Results The alveolar septum was narrowed or broken in mice in the CS group,and the adjacent alveolar cavity was enlarged and fused,consistent with the pathological changes of COPD.Neuronal degeneration and necrosis were observed in the hippocampus,but there were no significant morphological changes in other organs.Masson staining showed no obvious fibrosis in the lung,heart,liver,or kidney in CS-group mice.The result of pulmonary function tests showed that the forced expiratory volume in 0.1 second/forced vital capacity(FEV 0.1/FVC)and dynamic compliance were significantly decreased in the CS group compared with the control group,while airway resistance was obviously increased.Cognitive impairment in mice in the CS group was confirmed in the Morris water maze trial.TNF-α,IL-6,and IL-1β levels in lung and brain tissues were higher in the CS group compared with the control group.There were no significant differences in cardiac,liver,and renal functions between the groups.Conclusions A mouse model of COPD can be established by CS exposure for 20 weeks.Lung histomorphology,lung function,brain cognitive function,and levels of inflammatory factors can be used as indicators to evaluate the success of the model.

Objective:To explore the correlation between perfusion parameters of multi-slice spiral CT and serum costimulating molecules B7 family 3(B7-H3), alpha-fetoprotein anisoplast 3(AFP-L3) and its diagnostic value in hepatocellular carcinoma.Methods:Fifty patients with hepatocellular carcinoma admitted to the Huzhou First People′s Hospital from May 2021 to May 2022 (study group) and 40 healthy subjects who participated in physical examination during the same period (control group) were retrospectively selected as the study objects. Perfusion imaging parameters of multi-slice spiral CT and serum B7-H3 and AFP-L3 levels were compared between the two groups. Pearson test and receiver operating characteristic (ROC) curve were used to analyze the correlation between perfusion parameters of multi-slice spiral CT and serum B7-H3 and AFP-L3 levels and its diagnostic value in hepatocellular carcinoma.Results:The levels of blood flow (BF), hepatic artery perfusion (AP), blood volume (BV), mean transit time (MTT) and serum levels of B7-H3 and AFP-L3 in the study group were higher than those in the control group: (213.72 ± 35.01) ml/(100 g·min) vs. (126.17 ± 14.01) ml/(100 g·min), (152.37 ± 30.45) ml/(100 g·min) vs. (18.21 ± 1.21) ml/(100 g·min), (25.89 ± 3.01) ml/(100 g·min) vs. (23.62 ± 2.37) ml/(100 g·min), (19.32 ± 3.58) s vs. (5.12 ± 1.03) s, (401.35 ± 42.37) ng/L vs. (221.38 ± 23.01) ng/L, (353.47 ± 40.35) mg/L vs. (291.12 ± 23.45) mg/L, there were statistical differences ( P<0.05). The results of Pearson test showed that BF, AP, BV, MTT were positively correlated with serum B7-H3 and AFP-L3 levels in hepatocellular carcinoma patients ( P<0.05). ROC curve analysis results showed that the area under the curve of BF, AP, BV and MTT combined diagnosis of hepatocellular carcinoma was higher than that of single index ( P<0.05). Conclusions:Multi-slice spiral CT perfusion parameters BF, AP, BV, MTT and serum levels of B7-H3, AFP-L3 are increase and have positively correlated in the hepatocellular carcinoma patients, and multi-slice spiral CT perfusion parameters have high diagnostic value for hepatocellular carcinoma.

Breast cancer is the most common malignant tumor in women and poses a serious threat to their lives and health.Quantitative relaxation parameters are the inherent physical parameters of tissues,which can reflect fine structural characteristics as well as physio-logical and pathological conditions of tissues to a certain extent.Moreover,these parameters offer a real-time,noninvasive measurement method.Currently,quantitative relaxation parameters of magnetic resonance can be determined using traditional multi-echo spin-echo(MESE)T2 mapping techniques and emerging magnetic resonance image complication(MAGiC)techniques.Analysis of tissues using quantitative relaxation parameters can provide valuable clinical diagnostic information.This study reviews the application of quantitative relaxation parameters of magnetic resonance in breast cancer,aiming to provide insights into differential diagnosis,classification,treat-ment planning,and prognosis assessment.

Objective:To select the differential prognostic lactic acid metabolism-related genes(LRGs)of the head and neck squamous cell carcinoma(HNSCC)to construct the LRGs prognostic model of HNSCC,and to clarify the potential mechanism.Methods:The HNSCC gene expression and clinical data were obtained from The Cancer Genome Atlas(TCGA)and Gene Expression Omnibus(GEO)Databases,the LRGs were identified through GeneCards Database,and R software was used to screen out the LRGs of HNSCC;univariate Cox regression analysis was used to identify prognosis-related genes;two different subtypes were identified based on the prognostis-related LRGs;Kaplan-Meier(K-M)curve analysis was used to compare the prognosis of the patients between two groups;CIBERSORT algorithm was used to perform the immuno-correlation analysis between two groups;multivariate Cox regression analysis and LASSO regression analysis were used to construct the prognostic model;receiver operating characteristic curve(ROC)and K-M survival curve were used to assess the relationship between LRGs and survival and prognosis of the HNSCC patients.The prognostic model was validated by GSE27020,GSE41613,and GSE65858 datasets.The experiment were grouped based on risk score,and immune-related analysis and tumor score analysis were performed.Results:The TCGA Database differential analysis results showed that 1 196 LRGs were identified from HNSCC samples;univariate Cox regression analysis selected 27 differentially expressed genes(DEGs)associated with the prognosis of the HNSCC patients.Two different LRGs subtypes(Group 1 and Group 2)were identified according to the prognosis-related genes.The K-M survival curves results showed that the overall survival(OS)of the patients in Group 2 was significantly higher than that in Group 1,and the immune cell expression amount of the patients in Group 2 was also higher than that in group 1.The multivariate Cox regression and LASSO regression analysis results screened out 9 LRGs,including hypoxanthine phosphoribosyltransferase 1(HPRT1),amyloid precursor protein(APP),glycogen phosphorylase L(PYGL),urokinase-type plasminogen activator(PLAU),cannabinoid receptor 2(CNR2),stanniocalcin 2(STC2),nucleotide binding oligomerization domain-like receptor protein 1(NLRP1),integrin-linked kinase(ILK),and forkhead box B1(FOXB1);the prognostic model was constructed.The K-M and ROC curve results indicated that the expression levels of above 9 genes were associated with the survival and prognosis of the HNSCC patients,providing good 1-year,2-year,and 3-year survival prediction effect,and the area under ROC curve(AUC)values were all greater than 0.650.Furthermore,the predictive ability of the prognosis model was validated in GSE27020,GSE41613,and GSE65858 datasets.The patients classified based on the risk scores had distinguishable immune statuses.Conclusion:The differentially expressed LRGs of HNSCC screened by bioinformatics methods are related to the survival and prognosis of the HNSCC patients;the prognostic model constructed by 9 LRGs can predict the survival status and treatment response of the HNSCC patients.

Urinary tract infection (UTI) is one of the most common infectious diseases. It has the characteristics of high recurrence rate and prolonged course. At present, the problem of antibiotic resistance is becoming more and more serious, the incidence of adverse reactions is high, and the disadvantages of long-term administration appear, which brings severe challenges to the treatment of recurrent urinary tract infection. The prevention and treatment of UTI recurrence has become the focus of research. Recurrent urinary tract infection is related to the immune regulation mechanism of the body. Administration of immune regulation can provide new ideas for prevention and treatment. The vaccine based on immune regulation to prevent rUTI has made some progress. It can not only reduce the frequency of recurrences, but also decrease related symptoms. At the same time, the vaccine has good tolerance, high safety and good application prospect. This paper aims to summarize the progress of immune regulation and immune vaccines in vivo and clinical research.

Objective : To provide a reference for the diagnosis and treatment of mucoepidermoid carcinoma arising in Warthin’s tumor of the lip by investigating the diagnosis, treatment and prognosis of the disease. Methods : A case of mucoepidermoid carcinoma arising in Warthin’s tumor of lip was reported, including the clinical manifestation, treatment, pathological characteristics and prognosis. The related literature was also reviewed and analyzed. Results: A painless mass on the left lip lasting more than one month was found. Resection of the left lip was performed. Pathological examination showed that the tumor was a hybridoma composed of mucoepidermoid carcinoma and Warthin’s tumor. There was no recurrence or distant metastasis after 34 months. To date, this type of disease has been rarely reported. After thorough resection, the prognosis and survival rate are promising in most cases, with no recurrence or metastasis. Conclusion Mucoepidermoid carcinoma in Warthin’s tumor of the lip is rare. Clinical manifestations, imaging features and histological examination are useful when diagnosing the disease. Thorough resection will reduce the risk of disease recurrence.