Objective To explore the value of dual-phase enhanced CT radiomics in predicting post-acute pancreatitis diabetes mellitus(PPDM-A).Methods A total of 145 patients with acute pancreatitis(AP)were retrospectively collected,including 62 patients in PPDM-A group and 83 patients in non-PPDM-A group.The patients were randomly divided into training set and test set at a ratio of 7︰3,the pancreatic parenchyma in arterial phase and venous phase was delineated and the radiomics features were extracted.Vari-ance threshold method,univariate selection method and least absolute shrinkage and selection operator(LASSO)were used to screen radiomics features.The prediction performance of the model was evaluated by the area under the curve(AUC).The DeLong test was used to compare the prediction efficiency between the models,and the calibration curve and decision curve were used to evaluate the prediction efficiency of the model.Results The AUC of arterial phase model,venous phase model,combined arterial venous phase model,clinical model and radiomics combined clinical model in the training set were 0.845,0.792,0.829,0.656 and 0.862,respec-tively.The DeLong test results showed that only the difference between the radiomics combined clinical model and the clinical model in the training set and the test set was statistically significant(P<0.05).The decision curve showed that the radiomics combined clinical model had high clinical practicability in a certain range,and the calibration curve showed that the radiomics combined clinical model had the best fitting degree with the actual observation value.Conclusion Based on the dual-phase enhanced CT radiomics combined clinical model,PPDM-A can be predicted more accurately,and it can provide a certain reference value for the clinical development of per-sonalized treatment programs.

Objective:To investigate the effectiveness and safety of bortezomib combined with conventional chemotherapy regimens for treatment of relapsed/refractory acute B lymphoblastic leukemia (B-ALL).Methods:Twenty patients with relapsed/refractory B-ALL treated with bortezomib combined with chemotherapy in Jiaozuo People's Hospital Affiliated to Xinxiang Medical College, Jiaozuo Coal Industry Group Central Hospital and the Second People's Hospital of Jiaozuo from September 2021 to June 2022 were collected, and their treatment response and prognosis were retrospectively analyzed.Results:The median age of the 20 patients was 49.5 years old (25.0-58.5 years old); 12 were male and 8 were female; 12 were relapsed and 8 were refractory. All patients completed 1 course of bortezomib (1.6 mg/m 2, subcutaneous injection on days 2 and 16) combined with chemotherapy. Before bortezomib treatment, there were 0 case of complete remission (CR), 7 cases of partial remission (PR) and 13 cases of non-remission (NR) in 20 patients, the objective remission rate (ORR) was 35% (7/20), and all were positive for minimal residual disease (MRD). After bortezomib treatment, there were 13 cases of CR, 3 cases of PR and 4 cases of NR, and the ORR was 80% (16/20); the MRD of all patients decreased, among which 13 cases (65%) turned to negative; the differences were statistically significant when comparing CR rate, ORR and MRD negative conversion rate before and after bortezomib treatment ( χ2 values were 65.41, 8.83 and 19.30, all P < 0.05). Four of the 20 patients developed central nervous system infiltration despite bone marrow remission, and one died from post-chemotherapy infection. Myelosuppression occurred in all patients, the incidence of infection was 90% (18/20), and the incidence of digestive system adverse effects was 75% (15/20). Conclusions:Bortezomib combined with conventional chemotherapy regimens is effective and well tolerated in the treatment of relapsed/refractory ALL, and has the potential to enable patients with multi-drug resistant relapse to overcome resistance and to achieve deep remission.

Objective: To investigate the late identification of newly reported HIV/AIDS cases in Wuxing District of Huzhou City, Zhejiang Province from 2012 to 2021, and analyze the influencing factors, so as to provide the basis for improving AIDS prevention and control measures and promoting early identification of HIV/AIDS cases. Methods: Data pertaining to demographics, CD4+T lymphocyte counts, transmission routes and identification routes among newly reported HIV/AIDS cases in Wuxing District from 2012 to 2021 were collected through the HIV/AIDS Comprehensive Control System of Chinese Disease Prevention and Control Information System. The proportions of late identification of cases with different characteristics were descriptively analyzed, and factors affecting late identification were identified using a multivariable logistic regression model. Results: Totally 627 HIV/AIDS cases were reported in Wuxing District from 2012 to 2021, including 555 males (88.52%), and had a mean age of (40.30±15.98) years. There were a total of 212 cases with late identification, and the annual average proportion was 33.81%. The proportions of late identification ranged from 51.85% in 2012 to 28.00% in 2021, with no significant changing trend (χ2trend=1.152, P=0.283). Multivariable logistic regression analysis showed that higher proportion of late identification was more likely seen in the registered cases in Wuxing District (OR=1.651, 95%CI: 1.140-2.393), cases at ages of 40 years and older at diagnosis (OR=1.719, 95%CI: 1.068-2.766), and cases identified by medical institutions (OR=1.809, 95%CI: 1.136-2.881). Conclusion HIV/AIDS cases registered in Wuxing District, aged 40 years and older, and identified by medical institutions have higher proportions of late identification in Wuxing District from 2012 to 2021.

Background/Aims: This study aimed to investigate the biological function and regulatory mechanism of TCN1 in colorectal cancer (CRC). Methods: We studied the biological function of TCN1 by performing gain-of-function and loss-offunction analyses in HCT116 cell lines; examined the effects of TCN1 on the proliferation, apoptosis, and invasion of CRC cells; and determined potential molecular mechanisms using HCT116 and SW480 CRC lines and mouse xenotransplantation models. Tumor xenograft and colonization assays were performed to detect the tumorigenicity and metastatic foci of cells in vivo. Results: TCN1 knockdown attenuated CRC cell proliferation and invasion and promoted cell apoptosis. Overexpression of TCN1 yielded the opposite effects. In addition, TCN1-knockdown HCT116 cells failed to form metastatic foci in the peritoneum after intravenous injection. Molecular mechanism analyses showed that TCN1 interacted with integrin subunit β4 (ITGB4) to positively regulate the expression of ITGB4. TCN1 knockdown promoted the degradation of ITGB4 and increased the instability of ITGB4 and filamin A. Downregulation of ITGB4 at the protein level resulted in the disassociation of the ITGB4/plectin complex, leading to cytoskeletal damage. Conclusions TCN1 might play an oncogenic role in CRC by regulating the ITGB4 signaling pathway.

Objective:To analyze the frequency and characteristics of polymyositis (PM) in idiopathic inflammatory myopathy (IIM), and to investigate whether PM is over-diagnosed.Methods:Patients diagnosed as IIM according to the Bohan & Peter criteria of IIM hospitalized in the Department of Rheumatology of China-Japan Friendship Hospital from 2008 to 2019 were involved in the study. Definite PM (dPM) was defined as typical clinical and pathological features including elevated creatine kinase (CK) level, muscle weakness and muscle biopsy findings with endomysial CD8 + T cell infiltration and expression of MHC-1 on sarcolemma. Meanwhile, dermatomyositis (DM), anti-synthase syndrome(ASS), immune-mediated necrotic myopathy(IMNM), sporadic inclusion body myositis(sIBM) and other myopathies were excluded according to the new classification criteria of IIM subtypes respectively. Statistical analysis was performed using SPSS software 24.0. The Kruskal-Wallis test and χ2 test were used to compare the clinical characteristics between the dPM group and other IIM subtypes. Results:A total of 1 259 patients with IIM including 1 015 (80.6%) DM and 244(19.4%) PM were enrolled in this study. According to the strict definition of PM criteria, only 0.5% of patients (6/1 259) in IIM could be diagnosed as dPM. Most PM patients were IMNM and ASS according to the new IIM subtypes criteria, of which 48.0% (117/244) were IMNM and 32.0% (78/244) were ASS. 66.7%(4/6) of dPM patients were women. One complicated with RA, and one was dPM overlaped with systemic sclerosis. All of them had muscle weakness, mild elevation of CK level [611(391,1 451) U/L], and were myositis-specific autoantibodies negative. Except one dPM patients who did not receive immunoregulatory therapy due to chronic obstructive pulmonary disease, the others were administrated with low or medium dose prednisone combined with or without immunosuppressive agents. After a median follow-up of (38±26) months, the muscle strength of dPM patients were improved.Conclusion:dPM is a very rare clinical subtype of IIM. PM is an over-diagnosed entity in clinical practice. Patients with dPM have mild symptoms and good outcome.

The biological samples of oral genetic diseases and rare diseases are extremely precious. Collecting and preserving these biological samples are helpful to elucidate the mechanisms and improve the level of diagnose and treatment of oral genetic diseases and rare diseases. The standardized construction of biobanks for oral genetic diseases and rare diseases is important for achieving these goals. At present, there is very little information on the construction of these biobanks, and the standards or suggestions for the classification and coding of biological samples from oral and maxillofacial sources, and this is not conducive to the standardization and information construction of biobanks for special oral diseases. This consensus summarizes the background, necessity, principles, and key points of constructing the biobank for oral genetic diseases and rare diseases. On the base of the group standard "Classification and Coding for Human Biomaterial" (GB/T 39768-2021) issued by the National Technical Committee for Standardization of Biological Samples, we suggest 76 new coding numbers for different of biological samples from oral and maxillofacial sources. We hope the consensus may promote the standardization, and smartization on the biobank construction as well as the overall research level of oral genetic diseases and rare diseases in China.

Clinical data of 43 patients who underwent endoscopic resection for gastrointestinal stromal tumors (GIST) of length ≤1.2 cm at the Digestive Endoscopy Center of the 909th Hospital from January 2016 to December 2018 were retrospectively analyzed. The patients were divided into the endoscopic ligation resection (ELR) group ( n=27) and the endoscopic submucosal excavation (ESE) group ( n=16). The general, perioperative and follow-up data of the two groups were compared. The results showed that there was no significant difference in the general data between the two groups. The operation time was 20.0 (18.0,25.0) min in the ELR group and 27.5 (23.0,37.5) min in the ESE group, showing significant difference ( U=92.5, P=0.001). The en bloc resection rates were 100.0% (27/27) in the ELR group and 81.3% (13/16) in the ESE group, showing significant difference ( P=0.045). The postoperative hospital stays were 3 (2,4) days in the ELR group and 5 (4,6) days in the ESE group, showing significant difference ( U=125.5, P=0.020). There was no significant difference in the intraoperative bleeding rate, intraoperative hemorrhage volume, intraoperative perforation rate, number of hemostatic clips or postoperative complications including hemorrhage, fever and peritonitis between the two groups ( P>0.05). During the follow-up, there was no recurrence or metastasis of GIST in both groups. ELR and ESE can be safe and effective for small GIST ≤1.2 cm in diameter. Compared with the ESE group, the operation time and postoperative hospital stay are shorter with higher en bloc resection rate in the ELR group.

Objective:To summarize the experience and technical difficulties of complete thoracoscopic lobectomy(segmental) in the treatment of congenital pulmonary airway malformation in children.Methods:The clinical data, surgical videos and follow-up results of 38 children suffering from congenital pulmonary airway malformation and underwent complete thoracoscopic lobectomy in Children′s Hospital of Fudan University Xiamen Branch from January 2017 to December 2019 were retrospectively analyzed.A statistical comparisons of operative time, intraoperative blood loss, postoperative pain (the first time of getting out of bed), incision length and postoperative pulmonary complications were made between 28 children who underwent the total thoracoscopic lobectomy and 21 children who accepted open surgical lobectomy before January 2017 in Children′s Hospital of Fudan University Xiamen Branch.Results:Thirty-eight children with congenital pulmonary airway malformation were successfully operated by complete thoracoscopy.There were 28 lobectomies, 6 segmental lobectomies and 4 wedge lobectomies.Postoperative follow-up was conducted for more than 3 months, and no serious surgical complications occurred.Chest radiograph of 2 children with the right lower lobectomy at 48 hours after surgery had the elevation of the right diaphragm (2-3 intercostal), and it returned to normal 3 months after surgery.The CT review of 1 child with pulmonary wedge resection 1 month after surgery displayed a little residual lesion.Thoracoscopic lobectomy was significantly different from open surgery in terms of incision length[(2.0±0.5) cm vs. (10.0±0.5) cm], postoperative pain (the first time of getting out of bed)[(24.0±2.0) h vs. (48.0±1.5) h] and pulmonary complications (0 vs. 5 cases). The operative time of single lung ventilation was remarkably different from that of double lung ventilation in thoracoscopic lobectomy[(96.0±6.0) min vs. (118.0±7.0) min, t=106.501, P<0.001]. Compared with thoracoscopic lobectomy, thoracoscopic pulmonary segmentectomy has a long time and a large amount of blood loss. Conclusions:Complete thoracoscopic lobectomy (segmental) is the first choice for the treatment of congenital pulmonary airway malformation in children, with clear operative field, little trauma, less postoperative pain, quick recovery and fewer respiratory complications.Single-lung ventilation is beneficial for surgical completion.

Objective:To determine the serum levels of chemokine CCL27 and its clinical relevancein patients with dermatomyositis (DM).Methods:The serum CCL27 levels of 58 DM patients, 21 polymyositis (PM) patients, 20 systemic lupus erythematosus (SLE) patients and 31 healthy controls were measured by enzyme linked immunosorbent assay (ELISA). The score of disease activity was measured by two physicians-based on the myositis disease activity assessment tool (MDAAT). Its correlation with serum levels of CCL27 was analyzed. The difference between multiple groups were compared using analysis of variance (ANOVA) and t test, and the relevance was analyzed using Spearman correlation analysis and generalized method of moments (GEE) model. Results:Theserum level of CCL27 in DM patients (178±49) pg/ml was significantly higher than PM (110±40) pg/ml, SLE (141±46) pg/ml and healthy controls (137±38) pg/ml ( F=14.192, P<0.01). Crosssectional analysis showed that the serum CCL27 levelwaspositively correlated with global disease activity ( r=0.301, P=0.022) andskin disease activity ( r=0.493, P<0.01). Patients with V sign had higher serum CCL27 levels (191±52) pg/ml than the patients without (153±33) pg/ml ( t=2.839, P<0.01). Patients with holster sign had higher serum CCL27 levels (196±58) pg/ml than the patients without (168±41) pg/ml ( t=2.176, P=0.034). Follow-up study also found that CCL27l evels were positively correlated with global disease activity ( β=0.031, P=0.042) and skin disease activity ( β=0.032, P<0.01). Conclusion:The serum CCL27 levels are increased in patients with DM and can reflect the skin disease activity. The results of this study suggest that CCL27 may be a marker for cutaneous damage and monitoring of therapeutic effect.

HDA9, a member of the deacetylase family, plays a vital role in regulating plant flowering time through flowering integrator SOC1 and AGL24. However, it remains elusive how HDA9 interacts with SOC1 and AGL24 in flowering time control. Here, HDA9 was cloned in Brassica juncea and then its three active sites were separately replaced with Ala via overlap extension PCR. Thus, mutants of HDA9(D172A), HDA9(H174A) and HDA9(D261A) were constructed and fused into the pGADT7 vector. The yeast one-hybrid assays indicated that HDA9 mutants remained the interactions with the promoters of SOC1 and AGL24. Furthermore, the aforementioned results were confirmed in the dual luciferase assays. Interestingly, the DNA-protein interactions were weakened significantly due to the mutation in the three active sites of HDA9. It suggested that flowering signal integrator SOC1 and AGL24 were regulated by the key amino acid residues of 172th, 174th and 261th in HDA9. Our results provide valuable information for the in-depth study of the biological function and molecular regulation of HDA9 in Brassica juncea flowering time control.
Flowers ; genetics ; Gene Expression Regulation, Plant ; genetics ; Mustard Plant ; enzymology ; genetics ; Mutation ; Plant Proteins ; genetics ; metabolism ; Promoter Regions, Genetic ; genetics