15 extracted premolars were selected and randomly divided into 3 groups, with 5 in each group. MANI TF-13 bur、TR13-EF bur and the dental pneumatic ultrasonic hand-piece were respectively used to dispose the shoulder. 15 Zirconium dioxide full crowns were made. The shoulder marginal microleakage was observed by staining method. Dental pneumatic ultrasonic hand-piece showed the best anti-mic-roleakage effect in shoulder refinement.

Objective: To study the anticarcinogenic effects of raisin grape produced in Turpan in vitro; to determine the content of the components related to anticarcinogenesis.Methods: The effect of Turpan raisin grape on the growth of four tumor cell lines and one normal cell line was observed. The survival rate and protein content of cells were detemined. Four components in the Turpan raisin grape were measured, including vitamin C, polysaccharide, bioflavonoids and selenium.Results: The extracts of Turpan raisin grape significantly inhibited the growth of four tumor cell lines (P

Objective To inVestigate the effect of emodin on hyPertroPhic scar fibroblasts ( HSFs ) and exPlore the underlying mechanism. Methods HSFs were treated by emodin at final concentrations of 0,20,40,and 80 μmol·L-1, resPectiVely,in the cultural media. Forty_eight hours later,the cells were subjected to MTS assay and flow cytometry assay with annexin V and ProPidium iodide as dyeing indicators. Whole cell lysates from the cells of eVery grouP were subjected to Western blotting to measure the Protein exPression leVels of ERK1∕2,Bcl_2,Mcl_1 and RIP1. Results The cell Viability of HSFs was inhibited by emodin in a dose dePendent manner. The mortality rate of HSFs treated with emodin for 48 h at the concentrations of 40 and 80 μmol·L-1 were 28. 6%and 68. 0%,resPectiVely,which was significantly higher than that of the control grouP ( P<0.01).Pretreatmentwith Z_VAD_FMK could Partially reduce the mortality caused by emodin (P<0.05).PhosPhorylation of ERK1∕2 and the exPression of RIP1 and Mcl_1 were inhibited by emodin. Conclusion Down regulation of ERK1∕2,RIP1 and Mcl_1 by emodin may account for the inhibited Proliferation and increased cell death of HSFs.

Objective To investigate effects of Danhong on the serum levels of CD137, high-sensitivity C-reactive protein (hs-CRP) and homocysteine (Hcy) in patients with non-ST elevation acute myocardial infarction complicating metabolic syndrome. Methods A total of 126 patients with non-ST elevation acute myocardial infarction complicating metabolic syndrome were enrolled and randomly divided into a conventional treatment group and a Danhong treatment group using a random-digit table, with 63 patients in each group. All patients underwent angiography or percutaneous coronary intervention. The patients in the Danhong treatment group treated with intravenous Danhong 20 ml on the basis of conventional treatment for 1 week. The serum levels of CD137, hs-CRP and Hcy were measured at hospital admission and 10 days after treatment. The severity of coronary artery disease was assessed by the Gensini-score. Results The levels of CD137, hs-CRP and Hcy in both groups after treatment were significantly lower than before treatment (conventional treatment group: t 12.393, 17.408 and 9.458; Danhong treatment group: t 16.110, 17.573 and 13.481; all P<0.01), and the Danhong treatment group were significantly decreased than the conventional treatment group (t 2.815, 3.224 and 3.157, all P<0.01). The serum levels of CD137 and hs-CRP before treatment were significantly correlated with Gensini scores in 126 patients (r 0.720 and 0.562,all P<0.01). Conclusions The serum levels of CD137 and hs-CRP are significantly correlated with the severity of coronary artery disease, intravenous Danhong may has protective effect for coronary artery disease via decreasing CD137 and hs-CRP.

Objective:To study the influences of sucrose,citric acid and sodium bicarbonate on the adhesion of 3 kinds of adhesives.Methods:60 extracted tooth and 60 zirconia blocks (3 mm × 3 mm × 3 mm) were randomly divided into 3 groups (n =20),namely PULPDENT group,3M ESPE RelyxTM Veneer group and RelyxTM Luting group.Then,the samples of each group fell into 4 subgroups(n=5),namely subgroup A for artificial saliva,subgroup B for 10％ sucrose,subgroup C for 0.2％ citric acid,and subgroup D for 0.03 ％ sodium bicarbonate.After completing the adhesion of the specimens with corresponding adhesives,the specimens of subgroups A,B,C and D were submerged into artificial saliva(the control),sucrose,citric acid and sodium bicarbonate solutions for 2 times/day and 5 min/time,respectively.For the rest of time,all the specimens were submerged in artificial saliva.3 months later,shear bond strength of the specimens was tested,the fracture surface was observed under SEM,20 × microscope,and the fracture model was observed by stereoscopic microscope.SPSS 17.0 software was adopted for statistical analysis of the data.Results:The bond strength of PULPDENT,3M ESPE RelyxTM Veneer groups were higher than that of RelyxTM Luting group(P ＜ 0.05);the bond strength of subgroups B,C and D was lower than that of subgroup A(P ＜0.05);and the difference between the remaining groups was not statistically significant(P ＞0.05).SEM observation displayed that in group RelyxTM Luting,subgroups B,C and D showed increased crack depth,width and length when compared with subgroup A;there was no obvious difference between the remaining groups and the control group;in groups PULPENT,3M ESPE RelyxTM Veneer and RelyxTM Luting,all samples in their subgroups showed interface failure.Conclusion:Compared with PULPDENT and 3M ESPE RelyxTM Veneer adhesive,RelyxTM Luting is more susceptible to the influence of sucrose,citric acid and sodium bicarbonate,so it is not suitable for bonding zirconia blocks.

OBJECTIVE：To know about the use of policy tools for trad itional Chinese medicine （TCM）inheritance and innovation policies in China ，and to provide reference for subsequent improvement of TCM inheritance and innovation policies. METHODS：The content analysis method was used to classify and code the policy texts related to TCM inheritance and innovation policies at the national level before Sept. 2020. Statistical analysis was carried out from the two dimensions of basic policy tools and the TCM inheritance and innovation system ，and related suggestions were put forward. RESULTS ：Nine related policy texts were collected ，which were published during 2007-2020. In terms of basic policy tool dimensions ，environmental policy tools were the most （46.47％），followed by supplying policy tools （41.36％）and demanding policy tools （12.17％）. The supply-based policy tools included scientific research and informatization support （25.67％），talent training （7.06％），infrastructure construction （5.6％），public health services （2.07％），and capital investment （used the least ，0.97％）. The demand-based policy tools included international exchanges and cooperation （5.11％），organization coordination （3.77％），industry shaping （1.82％），pilot/ demonstration projects （1.46％），the latter two contents were used less. Among the environmental policy tools ，laws and regulations were used the most （24.94％），followed by target planning （9.73％），intellectual property （6.57％），financial support （2.43％），policy publicity （1.95％），quality evaluation （0.61％），and medical insurance support （0.24％）. The dimensions of TCM inheritance and innovation system included scientific research and innovation （34.67％），management mechanism （19.59％）， Chinese medicine industry （18.37％），service system （18.00％）and team building （9.37％），among which team building was related less. CONCLUSIONS ：In order to better implement TCM inheritance and innovation policies in China ，it is recommended to optimize supply-based policy tools and highlight policy promotion functions ；increase demand-based policy tools to form an effective“pull force ”；adjust the structure of environmentalpolicy tools to improve the external environment for inheritance and innovation ；promote the full use of policy tools in the inheritance and innovation system to achieve planning goals.

Malaria is one of the major diseases threatening the lives of people in Africa. Over the past decade, China has provided anti-malaria assistance to Africa. In November 2007, fast control malaria team of Guangzhou University of Chinese Medicine cooperated with the Comoros health authority. In Moheli Island of the Comoros, the anti-malaria team adopted a new strategy of Mass Drug Administration (MDA) and active intervention. They established an effective anti-malaria system and reporting system, as well as a local anti-malaria team. Furthermore, they treated patients with malaria in Moheli Island and implemended health education in local people. In a very short time, they have achieved remarkable results. This paper summarized the experiences of the project in order to provide useful reference for China to better carry out anti-malaria action in Africa and expand foreign health assistance.

The aluminum stress in acidic soil areas of China is an important abiotic stress factor that hampers the normal growth and development of plants and seriously affects the agricultural yield. The forms of plant resistance to aluminum stress are complex and diverse, which include secretion of organic acids, increase of rhizosphere pH, secretion of mucus, cell wall fixation of Al³⁺, organic acid chelation of Al³⁺ in cell solute, and vacuolar area isolation. Most of studies focus on analyzing conventional physiological characteristics, but in-depth molecular biological analyses are lacking. This review summarizes the mechanisms how plants adapt to acidic aluminum stress. This includes the effect of acid aluminum stress on plant growth and physiological metabolism, the two main physiological mechanisms of plant adaptation to acid aluminum stress (aluminum exclusion mechanism, aluminum tolerance mechanism), and the aluminum resistance related genes. Finally, this paper puts forward some prospects for further revealing the mechanism of plant adaptation to acid aluminum stress and excavating high-quality crops suitable for cultivation in acidic soils.
Acids ; Adaptation, Physiological ; Aluminum ; Crops, Agricultural/genetics* ; Gene Expression Regulation, Plant ; Plant Roots ; Soil/chemistry*

According to the pathological characteristics of symptomatic chronic thoracic and lumbar osteoporotic vertebral fracture (SCOVF), the different clinical treatment methods are selected, including vertebral augmentation, anterior-posterior fixation and fusion, posterior decompression fixation and fusion, and posterior correction osteotomy. However, there is still a lack of a unified understanding on how to choose appropriate treatment method for SCOVF. In order to reflect the new treatment concept and the evidence-based medicine progress of SCOVF in a timely manner and standardize its treatment, the clinical guideline for surgical treatment of SCOVF is formulated in compliance with the principle of scientificity, practicability and advancement and based on the level of evidence-based medicine.

OBJECTIVE: To investigate the effectiveness of arthroscopic autologous iliac bone grafting with double-row elastic fixation in treatment of recurrent anterior shoulder dislocation combined with massive glenoid bone defects. METHODS: Between January 2018 and December 2021, 16 male patients with recurrent anterior shoulder dislocation combined with massive glenoid bone defects were treated with arthroscopic autogenous iliac bone grafting and double-row elastic fixation. The patients were 14-29 years old at the time of the first dislocation, with an average age of 18.4 years. The causes of the first dislocation included falling injury in 5 cases and sports injury in 11 cases. The shoulders dislocated 4-15 times, with an average of 8.3 times. The patients were 17-37 years old at the time of admission, with an average age of 25.1 years. There were 5 left shoulders and 11 right shoulders. The preoperative instability severity index (ISIS) score of the shoulder joint was 5.8±2.1, and the Beighton score was 4.3±2.6. The University of California Los Angeles (UCLA) score, Constant score, American Shoulder and Elbow Surgeons (ASES) score, and Rowe score were used to evaluate shoulder function, and the degree of the glenoid bone defect repair was observed based on CT after operation. RESULTS: All incisions healed by first intention, and no complication such as incision infection or neurovascular injury occurred. The patients were followed up 12 months. At 12 months after operation, UCLA score, Constant score, ASES score, and Rowe score all significantly improved when compared with the scores before operation ( P<0.05). CT imaging showed the degree of glenoid bone defect was significantly smaller at immediate, 6 and 12 months after operation when compared with that before operation ( P<0.05), and the bone blocks healed with the scapula, and bone fusion had occurred at 12 months. CONCLUSION Arthroscopic autologous iliac bone grafting with double-row elastic fixation is a safe treatment for recurrent anterior shoulder dislocation combined with massive glenoid bone defects, with good short-term effectiveness.
Humans ; Male ; Adolescent ; Adult ; Young Adult ; Shoulder Dislocation/surgery* ; Bone Transplantation/methods* ; Arthroscopy/methods* ; Joint Instability/surgery* ; Shoulder Joint/surgery* ; Scapula/surgery* ; Recurrence