This paper summarizes 6 cases with multi-fracture of dental instruments in tooth root canal treated in our hospital from June 2011 to July 2013,the creation of a straight pathway,establishment of collateral bypass ,ultrasonic vibration,prevention of root perforation and secondary instrument fracture were emphasized,a reference in dealing with similar situations was provided.

Objective:To explore the mechanisms of the inhalation of atomized 1.0% anti-IL-1βand TNF-αimmunoglobulin yolk ( IgY) on treating guinea pigs with allergic asthma induced by the inhalation of aerosolized ovalbumin ( OVA).Methods:Healthy guinea pigs were randomly divided into the normal controls ( group C ) , the allergic asthma model group ( group M )-treated by the inhalation of atomized ovalbumin ( OVA ) , the inhalation of atomized 1.0% anti-IL-1βand TNF-αimmunoglobulin yolk ( IgY ) treatment group (group Z1)-treated asthma model guinea pigs by the inhalation of atomized 1.0% anti-IL-1βand TNF-αIgY,and positive control the inhalation of atomized budesonide treatment group (group Z2)-treated asthma model guinea pigs by the inhalation of atomized budesonide.The blood was gotten by cardiac puncture and the bronchoalveolar lavage fluid ( BALF ) was collected by bron-choalveolar lavage at 2 h,4 h,8 h and 24 h after the last time atomization.The inflammatory cells in the peripheral blood ( PB) were counted by methylene blue and eosin staining.Cytokine concentrations of IL-1β,IL-4,IL-6,IL-8,IL-13,IL-16,TNF-α,TGF-β1 and IgE in the plasma and bronchoalveolar lavage fluid (BALF) were measured using an enzyme-linked immunosorbent assay (ELISA).Results:In PB,eosinophils was decreased from 2 h to 8 h in group Z1 compared to group M.In plasma,the levels of IL-1βat 4 h and 24 h,IL-16 at 2 h,4 h and 24 h,TGF-β1 from 4 h to 24 h and IgE at 24 h,as well as the levels of IL-1βand TNF-αfrom 2 h to 8 h,IL-4,IL-6,IL-8 and IL-13 from 4 h to 24 h,IL-16 at 8 h,and TGF-β1 and IgE from 4 h to 8 h,especially the level of IL-1βand TNF-αstarting at 2 h,in BALF were significantly reduced in group Z 1 compared to group M ( P<0.05 ).The levels of IL-1βand TNF-αwere positively cor-related with that of IL-4,IL-6,IL-8,IL-13,IL-16,TGF-β1 and IgE (P<0.05).Conclusion: The inhalation of aerosolized anti-IL-1βand TNF-αIgY effectively alleviates inflammatory responses in guinea pigs with allergic asthma induced by aerosolized OVA inhalation may be due to the significant decrease in the levels of various allergic inflammatory cytokines .

Objective To explore the effect and safety of enhanced recovery after surgery (ERAS) in the surgical treatment of common bile duct stones.Methods According to random number table,48 patients with common bile duct stones were randomly divided into the ERAS group and the control group.The patients of the control group received the traditional perioperative management and laparotomy exploration of common bile duct.The patients of the ERAS group received the ERAS perioperative management and laparoscopic exploration of common bile duct.The preoperative and postoperative level of C reactive protein (CRP),time to out-of-bed activity,time to food taking,time to anal exsufflation,postoperative hospital stay,hospitalization cost and postoperative complications between the two groups were compared.Results Compared with the control group,the ERAS group had lower levels of CRP on the postoperative 1 day and 3 days[d1:(102.6±13.5) mg/L vs.(81.3±17.3)mg/L;d3:(71.8±15.3)mg/L vs.(41.2±11.2)mg/L,t=2.553,3.287,all P<0.05],had shorter time to out-of-bed activity[(3.2±1.8)d vs.(0.9±0.4)d],time to food taking[(4.3±1.9)d vs.(1.8±1.2)d] and time to anal exsufflation[(2.5±0.7)d vs.(1.2±0.3)d],and had shorter operative hospital stay[(7.3±3.2)d vs.(3.8±1.4)d]and less hospitalization cost[(7 200±800)RMB vs.(5 900±700)RMB] (t=5.561,4.319,3.765,2.351,1.671,all P<0.05).The incidence rate of postoperative complications of the ERAS group decreased markedly (61.91% vs.18.52%,x2=25.82,P<0.05).Conclusion ERAS management in the surgical treatment of common bile duct stones is safe and effective,which can enhance the recovery of the patients.

Objective:To analyze the serum lipid levels, and its influencing factors, of male residents around an uranium mine in order to provide a scientific basis for health risk assessment for such residents.Methods:With such a mine as the center, the surveyed subjects were divided into four groups as within 5, 10, 15 and 20 km of this mine, respectively. These male residents living around the mine were randomly selected as subjects. A health questionnaire survey was conducted among the subjects. The indicator such as height, weight and blood pressure were measured by means of the standard method. Peripheral venous blood was extracted from the subjects, and their venous blood glucose and serum lipid were detected. The levels of serum lipid and detectable rates of abnormal serum lipid were analyzed by using univariate analysis, and multivariate logistic regression analysis was used to analyze the influencing factors of dyslipidemia.Results:A total of 867 males at age 40 to 69 was included in the vicinity of the mine. The mean levels ( ± s) of TC, TG, LDL-C, and HDL-C were (5.46±1.11), (1.92±1.64), (3.19±1.02), and (1.39±0.43) mmol/L, respectively. 384 subjects with dyslipidemia were totally detected in the residents, and the detection rate was 44.29% (384/867). Of the residents with dyslipidemia, the majority was abnormal in two lipid related indexes (45.57%, 175/384). Univariate analysis result showed that there was statistically significant difference in TG level in different distance groups ( F=3.34, P<0.05). There were statistically significant differences in the abnormal detection rates of TG and HDL-C in subjects in different distance groups ( χ2=9.52, 10.18, P<0.05). The detection rates of dyslipidemia were significantly different in the groups of BMI, blood pressure and blood glucose ( χ2=45.91, 32.31, 11.42, P<0.05). Multivariate logistic regression analysis showed that excluding marital status and degree of education, the BMI, blood pressure and blood glucose all had an impact on dyslipidemia. The residents with overweight ( OR=2.08, 95% CI: 1.52-2.86) and obeseness ( OR=2.88, 95% CI: 1.58-5.24) had a higher risk for dyslipidemia than those with normal weight. The risks for dyslipidemia in the residents with hypertension ( OR=1.94, 95% CI: 1.45-2.60) and hyperglycemia ( OR= 2.17, 95% CI: 1.27-3.69) were higher than those with normal blood pressure and blood glucose, respectively. Conclusions:The detection rate of dyslipidemia is higher in male residents around the mine. The BMI, alcohol consumption, blood pressure, blood glucose and distance from the mine are influencing dyslipidemia and other relevant indexes. Overweight is an independent risk factor for dyslipidemia and its components. The distances from uranium mine has no significant effect on the dyslipidemia of male residents.

OBJECTIVETo verify the efficacy and safety of post-marketed fleabane injection combined with Dengzhan Shengmai capsules in the treatment of ischemic stroke (IS).

METHODA multicentre, prospective, practical, randomized controlled study was carried out to compare the efficacy and safety of Dengzhan group (n = 343) and western medicine group (n = 335), appling "clinical study central stochastic system". The treatment of Dengzhan group is using fleabane injection in acute stage and Dengzhan Shengmai capsules in convalescence. The primary indexes of effect evaluation are the important outcome events in 360 days' follow-up, including mortality, recurrence, disability and quality of life to reflect the effect of clinical study. The indexes of safety evaluation involve laboratory examination results and incidence of adverse events.

RESULTAfter 360 days' follow-up, 4 people died of IS in Dengzhan group, and the mortality rate of which is 1.17%, while 16 died in Western medicine group (WM group), and the mortality rate is 4.78%, suggesting that the mortality rate of Dengzhan group is significantly lower than WM group (P<0.05). Eleven cases recurred in Dengzhan group, and the recurrence rate of which is 3.21%, while 12 recurred in WM group, and the recurrence rate is 3.59%, indicating that the recurrence rate of Dengzhan group is slightly lower than WM group. The disability rate of Dengzhan group is 39.53%, among which the rate of severely disabled cases are 1.49%, while the disability rate of WM group is 40.13%, among which the rate of severely disabled cases are 3.13%, suggesting that the disability rate of Dengzhan group is lower and the severity of disability is also lighter than WM group. In the field of quality of life, the activity ability and the upper limb function store of stroke patients in Dengzhan group improved far much better than WM group (P<0.05). Analysis of safety suggested that, adverse events occurred in 11 cases in Dengzhan group, among which 4 cases is related with the drug treatment, the incidence of adverse events of which is 1.17%, and the main manifestations involve fever and chilling, rash, nausea, dizziness, palpitation, etc. which were all appeared after the treatment of fleabane injection, and disappeared 1 to 2 days after drug withdrawal. 13 cases occurred abnormal liver function and 2 cases abnormal kidney function in Dengzhan group. According to the judgment of clinical physicians, 3 case of ALT abnormality is possibly related to the treatment, the others are all unrelated with the treatment.

CONCLUSIONFleabane injection and Dengzhan Shengmai capsules are all safe and effective TCM in the treatment of ischemic stroke.

Adult ; Aged ; Brain Ischemia ; drug therapy ; Capsules ; Drug-Related Side Effects and Adverse Reactions ; Drugs, Chinese Herbal ; adverse effects ; therapeutic use ; Erigeron ; adverse effects ; Female ; Humans ; Injections ; Male ; Middle Aged ; Product Surveillance, Postmarketing ; Prospective Studies ; Stroke ; drug therapy

Accurate classification of the acetabular injuries and appropriate treatment plan are great challenges for orthopedic surgeons because of the irregular anatomical structure of the acetabulum and aggregation of important vessels and nerves around it. Letournel-Judet classification system has been widely applied to classify acetabular fractures. However, there are several limitations, including incomplete inclusion of fracture types, difficulty in understanding and insufficient guidance for surgical treatment, etc. Serious complications such as traumatic arthritis are common due to wrong classification and diagnosis and improper selection of surgical strategy, which brings a heavy burden to the society and families. Three-column classification, based on anatomic characteristics, has advantages of containing more fracture types and being easy to understand, etc. To solve the problems existing in the diagnosis and treatment process based on Letournel-Judet classification, achieve accurate diagnosis and treatment of patients with acetabular fractures, and obtain satisfactory prognosis, the Orthopedic Trauma Emergency Center of Third Hospital of Hebei Medical University and the Trauma Orthopedic Branch of the Chinese Orthopedic Association organized experts from relevant fields to formulate the Expert consensus on the accurate diagnosis and treatment of acetabular fractures based on three-column classification ( version 2023) in terms of principles of evidence-based medicine. Based on the three-column classification, 15 recommendations were proposed, covering the diagnosis, treatment, complication prevention and management, etc, so as to provide reference for accurate diagnosis and treatment of acetabular fractures.

Objective To establish and improve the quality standard of ginkgo semen decoction pieces. Methods The morphological character for 29 batches of ginkgo gemen and 12 batches of stir-fried ginkgo gemen were observed, and the moisture contents were assayed using the method in Chinese Pharmacopoeia 2015 edition, the first supplement. Results The character of ginkgo gemen and stir-fried ginkgo gemen were consistent in different batches. The moisture content of ginkgo gemen was 8.8% to 12.2%, with an average of 10.5%. The moisture content of stir-fried ginkgo gemen was from 5.4% to 12.3%, with an average of 8.9%. Considering that ginkgo semen decoction pieces are stored for a long time, they are prone to the attack of mildew and insects, and the moisture limit is set to be no more than 10.0% in ginkgo gemen and stir-fried ginkgo. Conclusion Compared with the Chinese Pharmacopoeia 2015 edition, the first supplement, the character identification for ginkgo semen decoction pieces was added and the quality standards were improved. The moisture content of ginkgo semen decoction pieces needs to be strictly controlled under 10.0% to prevent mildew and insects.

OBJECTIVE: To explore the status of occupational stress and its influencing factors in medical radiation workers using two occupational stress measurement models. METHODS: A total of 632 medical radiation workers from Guangdong Province were selected as the study subjects using cluster sampling method. Chinese version of Job Content Questionnaire and Effort Reward Imbalance Questionnaire were used to assess occupational stress with job demand-control( JDC) and effort-reward imbalance( ERI) models. RESULTS: The rate of occupational stress in the study subjects was 43. 8%( 277/632) using the JDC model. The rate of occupational stress was 38. 6%( 244/632) using the ERI model. The multivariate logistic analysis results showed that the risk of JDC occupational stress was higher in workers with more than 8 hours work daily and more than 40 hours weekly( P < 0. 01). The risk of ERI occupational stress was higher in the workers with age of30. 0-40. 0,public medical institutions,daily work more than 8 hours and weekly work more than 40 hours( P < 0. 01).CONCLUSION: Under the two theoretical models,medical radiation workers have a certain degree of occupational stress. The age,medical institution type,daily and weekly work hours are the main factors affecting occupational stress.

BACKGROUNDThe initial osteoblastic adhesion to materials characterizes the first phase of cell-material interactions and influences all the events leading to the formation of new bone. In a previous work, we developed a novel amorphous calcium phosphate (ACP)/poly(L-lactic acid) (PLLA) material that demonstrated morphologic variations in its microstructure. The aim of this study was to investigate the initial interaction between this material and osteoblastic cells. Cellular attachment and the corresponding signal transduction pathways were investigated.

METHODSA porous ACP/PLLA composite and PLLA scaffold (as a control) were incubated in fetal bovine serum (FBS) containing phosphate-buffered saline (PBS), and the protein adsorption was determined. Osteoblastic MG63 cells were seeded on the materials and cultured for 1, 4, 8, or 24 hours. Cell attachment was evaluated using the MTS method. Cell morphology was examined using scanning electron microscopy (SEM). The expression levels of the genes encoding integrin subunits α1, α5, αv, β1, focal adhesion kinase (FAK), and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were determined using real-time reverse transcription polymerase chain reaction (RT-PCR).

RESULTSThe ACP/PLLA material significantly increased the protein adsorption by 6.4-fold at 1 hour and 2.4-fold at 24 hours, compared with the pure PLLA scaffold. The attachment of osteoblastic cells to the ACP/PLLA was significantly higher than that on the PLLA scaffold. The SEM observation revealed a polygonal spread shape of cells on the ACP/ PLLA, with the filopodia adhered to the scaffold surface. In contrast, the cells on the PLLA scaffold exhibited a spherical or polygonal morphology. Additionally, real-time RT-PCR showed that the genes encoding the integrin subunits α1, αv, β1, and FAK were expressed at higher levels on the ACP/PLLA composite.

CONCLUSIONSThe ACP/PLLA composite promoted protein adsorption and osteoblastic adhesion. The enhanced cell adhesion may be mediated by the binding of integrin subunits α1, αv, and β1, and subsequently may be regulated through the FAK signal transduction pathways.

Biocompatible Materials ; chemistry ; Calcium Phosphates ; chemistry ; Cell Adhesion ; physiology ; Cells, Cultured ; Focal Adhesion Protein-Tyrosine Kinases ; metabolism ; Humans ; Integrin alpha1 ; metabolism ; Integrin alpha5 ; metabolism ; Integrin alphaV ; metabolism ; Integrin beta1 ; metabolism ; Integrins ; genetics ; metabolism ; Lactic Acid ; chemistry ; Osteoblasts ; cytology ; Porosity ; Tissue Engineering ; methods

Objective To explore the differentially expressed mRNAs and related biological processes and pathways in fractional low-dose ionizing radiation (LDIR)-induced senescence of normal human bronchial epithelial (HBE) cells by high-throughput mRNA sequencing and bioinformatics techniques. Methods Senescence-associated β-galactosidase staining and senescence-associated secretion phenotype gene mRNA and protein expression levels were measured at 24 and 48 h after irradiating HBE cells 7 times at doses of 0, 50, 100, and 200 mGy, respectively. The differentially expressed genes were screened by high-throughput sequencing for Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Results The senescence-positive area of fractional low-dose irradiated HBE cells increased in a dose-dependent manner (P < 0.05). The mRNA levels and protein expression of transforming growth factor-β1(TGF-β1) and matrix metalloproteinase-9(MMP-9) genes were increased in the 100 mGy × 7 and 200 mGy × 7 groups at 24 and 48 h after the end of irradiation compared with the control group. High-throughput sequencing showed that there were 882, 475, and 1205 differentially expressed mRNAs in each dose group compared with the control group. GO analysis showed that the differentially expressed mRNAs in each dose group were mainly enriched in biological processes such as cell cycle regulation, regulation of nitrogen compound metabolic process, regulation of cell division and response to stimulus. KEGG analysis showed that the differentially expressed mRNAs were mainly enriched in the pathways of cell cycle, cell senescence, and ferroptosis. Conclusion Fractional LDIR induced senescence in HBE cells, and differentially expressed mRNA-associated biological processes and pathways in senescent cells are related to cell cycle and cell senescence.