Dental pulp stem cells (DPSC) are pluripotent stem cells with high differentiation potential isolated from dental pulp. Using DPSC for vascular regeneration may be a good option. Hypoxia inducible factor-1α (HIF-1α) is an upstream gene of vascular endothelial growth factor (VEGF), and the small ubiquitin like protease 1 (SENP1) can reverse the small ubiquitin like (SUMO) modification of HIF-1α. Through the regulation of SENP1/HIF-1α, good vascular regeneration characteristics have been demonstrated in many in vitro and in vivo experiments. The SENP1/HIF-1α signaling axis has varying degrees of promoting and inhibiting effects on many solid tumors. Although there is relatively little literature on the role of the SENP1/HIF-1α signaling axis in dental pulp stem cells, it can be determined that SENP1/HIF-1α plays an important role in the angiogenesis of dental pulp stem cells. This article will elucidate the SENP1/HIF-1α signaling pathway and its mechanism of promoting vascular differentiation of DPSC.

Objective:To investigate the expression and role of DEAD-box RNA helicases 5(DDX5 helicases)in head and neck squamous carcinoma(HNSCC).Methods:Tissue microarray microarray was used to assess relevant mRNA expression profile data,and R software was used to screen differential mRNAs(DEGs).The expression level of DDX5 was predicted using GEPIA 2,TCGA databases,and detected by immunohistochemistry,western blot and RT-qPCR in the HNSCC tissue and cell lines.Based on high-throughput sequencing data of DECs,differentially expressed miRNAs(DEMIs)relevant DDX5 competitive endogenous RNA network(ceRNA)was constructed.The software cytoscape was used to visualize the ceRNA network map and further screen the regulatory ax-is.Results:The results of microarray screening revealed that DDX5 expression in HNSCC was upregulated.Immunohistochemistry ver-ified that DDX5 was stronger expressed in the nuclei of squamous carcinoma cells.qPCR results suggested that significant expression of DDX5 mRNA at the tissue and cellular levels(P＜0.05).Western blot results showed high expression of DDX5 protein in the tissues.The ceRNA network was constructed,from which the relevant HNSCC axis circRNA-039626-miR-222-5p-DDX5 was identified.Con-clusion:DDX5 is highly expressed in HNSCC,and the circRNA-039626-miR-222-5p-DDX5 axis may be a potential regulatory axis for the development of HNSCC.

Objective To establish a standardized management system for oral drug administration through nasal feeding and observe its clinical implementation effect.Methods Authoritative books and drug instructions at home and abroad were consulted,and relevant literature at home and abroad was searched to evaluate the situation of nasal feeding administration,so as to determine the unreasonable factors in clinical nasal feeding administration.Relevant keywords were used to search in the databases,in order to determine the standardized literature and screen the best evidence for the standardized management of patients with intranasal administration of oral drugs.The GRADE grading method was used,the evidence was graded,the comprehensive evidence formed the nasal feeding administration management standard,and evidence-based practice was carried out.The recognition rates of nasal feeding,overall correct answer rates,rational results of medication and adverse events of medical staff and pharmacists before and after the implementation of management standards were compared.Results Compared to before the implementation of the management standard for oral drug administration through nasal feeding,after the establishment and implementation of the management standard for oral drug administration through nasal feeding,the awareness rate and overall accuracy rate of nasal feeding among medical staffand pharmacists increased,the unreasonable situations of nasal feeding administration decreased,the adverse events of nasal feeding administration decreased,and there were statistical significant differences between groups before and after implementation(P<0.05).Conclusion The establishment of standardized management for oral drug administration through nasal feeding has a positive effect on improving the awareness of medical staff towards nasal feeding,reducing the occurrence of unreasonable nasal feeding and adverse events.

Cutaneous melanoma is a malignant skin cancer with a poor prognosis.However,re-cent advances in immune checkpoint blockade and targeted therapy have significantly improved outcomes in advanced-stage resectable melanoma,which have made neoadjuvant therapy a viable option for melanoma patients.Currently,several relevant clinical trials on neoadjuvant therapy have achieved significant results.This paper reviews the recent advances in neoadjuvant therapy for cutaneous melanoma,focusing on the selection of neoadjuvant therapy,subsequent surgical considerations after neoadjuvant therapy,prognostic indicators,and baseline biomarkers.

Objective:To compare the efficacy and safety of intermittent regional hepatic vascular inflow occlusion with Pringle’s maneuvre for laparoscopic anterior sectionectomy.Methods:From January 2014 to December 2018, 54 patients who underwent laparoscopic right anterior sectionectomy at the Department of Hepatopancreatobiliary Surgery, the Third Affiliated Hospital, Soochow University were recruited into this study. The patients were 40 to 60 years old, and 27 were males and 27 females. Intermittent regional hepatic vascular inflow occlusion was carried out in 24 patients (the intermittent occlusion group). The remaining patients underwent Pringle’s maneuvre (the Pringle group). Postoperative liver function, intraoperative blood loss, intraoperative blood transfusion, operation time and postoperative complications between the two groups were compared.Results:Intraoperative hemorrhage and blood transfusion of the Pringle group (534±42)ml, (2.88±0.54)U were significantly higher than the intermittent occlusion group (374±21)ml, (1.86±0.29)U (all P<0.05). The operation time of the Pringle group was significantly shorter than the intermittent occlusion group ( P<0.05). Two patients developed CO 2 embolism in each group, which led to 2 patients in the intermittent occlusion group being converted to open operations. Postoperative hepatic function (except albumin) of the intermittent occlusion group was significantly better than the Pringle group, while the hospital stay of the intermittent occlusion group was significantly shorter than the Pringle group (all P<0.05). Six patients (25.0%) developed postoperative complications in the intermittent occlusion group versus 8 (26.7%) in the Pringle group ( P>0.05). Conclusion:Intermittent regional hepatic vascular inflow occlusion reduced intra-operative hemorrage and hepatic impairment, and shortened hospital stay. However, it required higher operation skills and it should gradually be promoted.

Objective To evaluate regional left sided in and out flow hepatic flow occlusion in laparoscopic left hemi-hepatectomy compared with in hepatic flow occlusion.Methods From Jan.2016 to Dec.2017,34 patients underwent laparoscopic left hemi-hepatectomy with regional hepatic in-out flow occlusion.Results were compared with 52 patients undergoing laparoscopic left hemi-hepatectomy under leftsided hepatic inflow occlusion only.Results Compared to hepatic inflow occlusion,regional hepatic in and out flow occlusion in laparoscopic left hemi-hepatectomy lead to a 0.46 hour longer operation time,20 ml less intraoperative blood loss and 0.62U less blood transfusion,reduced hepatic function impairment and 1.41 days shorter hospital stay.Conclusions Regional hepatic in-out flow occlusion in laparoscopic left hemi-hepatectomy can reduce intraoperative hemorrhage and lower the risk of CO2 embolism.

Objective To investigate the strategies in dealing with intraoperative CO2 embolizm during Laparoscopic hepatectomy (LH).Methods We collected and analyzed data from patients who underwent laparoscopic hepatectomy (LH) in our hospital from Jan.2013 to Aug.2017.There were 321 patients.The criteria for the diagnosis of CO2 embolism were rapid intraoperative decrease in petCO2 and SPO2 accompanied with tachyarrhythmia.Results 12 patients were diagnosed to have CO2 embolism.The rate was 3.7％.For these 12 patients,10 patients were dealt with laparoscopically and 2 patients were converted to open surgery.Conclusion CO2 embolism did not rarely occur in LH patients.Sophisticated operations and careful manipulation in LH are the only ways to prevent CO2 embolism.

Through the study on mathematical logic relation in the syndrome theory of traditional Chinese medicine (TCM), it revealed that the mathematical logic relation among three basic elements in the judgment of syndromes, which were the disease cause (a), disease location (b), disease nature (c) and syndrome (z), was f(z)=a+b+c. The mathematical logic relation between syndrome (z) and symptom (zi) was f(z)= z1+z2+z3+…+zi. The obvious feature reflected by the complexity of syndromes was the construction number of symptoms. During the syndrome differentiation process, the mathematical logic relation between symptom and disease cause, location, nature and syndrome was z1+z2+z3+…+zi =a+b+c= f(z). However, syndromes generally exhibited a nonlinear relationship of point-set topology. After calculation, 79 major single TCM syndromes had a total of more than 6.5×105 different forms. The number within a certain range of syndrome group was approximately 6.6×10100. The super huge data “Googol” may be the root of complex TCM syndromes. The results showed that the researches on “element of syndrome” using the bayesian networks, the neural network algorithm and the algorithm of double levels of frequency power were irrelevant to the mathematical logic relation of the intrinsic relations of syndrome theory. Therefore, “element of syndrome” was a false proposition feature in the study of TCM basic theory. The established syndrome differentiation method with“element of syndrome” as its core was not conformed to the inherent law of TCM theory and clinical practice.

This article was aimed to propose and develop traditional Chinese medicine (TCM) health engineering, using modern science and technology, in order to carry out the detection research which reflected TCM features of human functional state. It was an important way to achieve TCM diagnosis and the objective evaluation on therapeutic effects of TCM. The combination of TCM health engineering with information technology, and the formation of TCM functional state intelligent identification system, as well as the extension into the Health Internet of Things (HIT) could provide more accurate and convenient services for human healthcare in the age of big health. And identification on TCM syndromes was the core to achieve this goal. Using characterization data on TCM syndromes could realize the data processing between TCM syndrome and prescription through intelligent computing, in order to form the TCM syndrome differentiation and treatment intelligent system. It had great significance in the promotion of TCM health project.