Objective:To explore the application value of endoscopic ultrasonography (EUS) on preoperative diagnosis and clinical staging of esophageal cancer.Methods: In accordance with the international federation of tumor cancer alliance (UICC) and the United States (AJCC) (2003) TNM staging criteria, 45 cases of esophageal cancer patients confirmed by biopsy and gastroscope examination did preoperative diagnosis and clinical staging with EUS, and the results were compared with postoperative pathological staging results.Results: Fourty-five patients had esophageal EUS imaging characteristics, EUS on 45 cases of esophageal cancer patients with preoperative diagnostic accuracy rate was 100.0%; Clinical staging based on the result of postoperative histopathologic examination, preoperative EUS for esophageal T staging overall diagnostic accuracy was 82.2%, T1, T2, T3, T4 diagnostic accuracy respectively was 85.7%, 83.3%, 82.4% and 85.7%; The overall diagnostic accuracy was 77.8% for N staging, N0 and N1 stage diagnostic accuracy respectively was 80.0%, 76.0%.Conclusion: Accuracy rate of EUS on preoperative diagnosis of esophageal cancer is higher, accuracy rate of EUS on preoperative T and N staging of esophageal cancer is also high, it can be important basis of esophageal preoperative treatment selection and prognostic evaluation, and has higher clinical value.

Two glycan peptides, GLSP2 and GLSP3 were obtained from the hot-water extract of thefruit-body of Ganoderma lucidum. Gel chromatography and HPLC showed that they are bothhomogeueous polysaccharides,with molecular weights of 12800 aud 14100 respectively. Throughthe procedures of total acidic hydrolysis, periodate oxidation, Smith degradation, and spectraldetermination, GLSP2 proved to be a glycan peptide with ? (1→3 ) (1→6 ) and (1→4 )linkage, 26.6% of which is peptide; while GLSP3 proved to be a glycan peptide with ?- (1→6 ) and (1→4 ) linkage, aud the sugar residue ratio in these two bonds is 1∶1. The chain ofGLSP3 has branches, and peptide takes 12.3% 0f it. Basic ?-elimination reaction iudicatedthat the sugar residues in the two glycan peptides are linked with O-bond to serine and threonine on the peptide chain.

[ABSTRACT]AIM:Toinvestigatetheapplicabilityanddegradabilityoftheantigen-extractedxenogeneicbone carrying recombinant human bone morphogenetic protein 2 ( rhBMP-2) as a scaffold in repairing the mandibular defect in vivo.METHODS:New Zealand rabbits (n=28) with 28 mandibular defects were divided into 3 groups at random:anti-gen-extracted xenogeneic cancellous bone /rhBMP-2 group (group A), antigen-extracted xenogeneic cancellous bone group ( group B ) and blank control group ( group C ) .Twelve bone defects each in group A and group B were classified into 3 time points (4, 8 and 12 weeks).Observation in general, X-ray test and hematoxylin and eosin staining and bone density measurement were conducted on each rabbit in group A and group B .Four bone defects were classified into group C .Ob-servation in general , X-ray test and hematoxylin and eosin staining were also conducted on each rabbit in group C .RE-SULTS:The X-ray showed that the implanted materials were degraded after a period of time , and were replaced by autoge-nous bone.At the 12th week, the implanted materials in group A were entirely degraded and replaced by autogenous bone . The bone density measurement showed that the bone density was enhanced after implantation .At the 12th week, there was an obvious difference between group A and group B .The hematoxylin and eosin staining showed there were more neovascu-larization, new fibrosis and new bone formation in group A than those in group B .The implanted material in group A de-graded much faster than that in group B .The significant difference in the new bone area ratio between the 2 groups among all weeks was observed .CONCLUSION: An antigen-extracted xenogeneic cancellous bone has good biocompatibility , which can act as a scaffold in bone repairment .It is the carrier of rhBMP-2 to continue the bone formation .Therefore, anti-gen-extracted xenogeneic cancellous bone is a kind of good material for bone repairment .

Objective To determine the content of aconitine-type alkaloids in Bitongxiao Ointment,and to control the limits of aconitine-type alkaloids in the ointment.Methods Acid-dye colorimetry was employed and methodology was examined for linear range,average recovery,precision,exclusivity and stability.Results The method has a good precision and stability.The linear range of aconitine-type alkaloids was in 0.111 9～0.714 mg(r=0.999 3),and the average recovery was 97.4 %.Conclusion The method is accurate,reliable,simple,can be used to determine the content of aconitine-type alkaloids in Bitongxiao Ointment.

Parkinson's disease is a common progressive neurodegenerative disorder among old people, characterized by progressive loss of dopamine-producing neurons in the substantia nigra pars compacta and accordingly low level of dopamine in the nigrostriatal pathway.Neuroinflammation and even systemic inflammation have been suggested to be involved in the demise of dopaminergic neurons. Anti-inflammatory treatment could protect brain from inflammatory injury and prevent the progressive course of Parkinson's disease, which suggests a potential new strategy for Parkinson's disease treatment.

Objective To investigate the effect of formative assessment on skill acquisition of basic life support (BLS) among medical students. Methods Totally 206 undergraduates were ran-domized into control group (C group) and interventional group (F group). A BLS lecture was given in both groups. And then, 45 min BLS training and BLS skill assessment (after training) were given in C group. Undergraduates in F group received BLS skill assessment (formative assessment) before training, and 15 min feedback was delivered based on the assessment, then 30 min BLS training was conducted. Skills assessment was conducted again in F group after the training. Student's-t-test was used to compare the difference of skills between the two groups and P<0.05 signifies statistically sig-nificant differences. Results Score of F group (85.2±7.3) were higher than that in C group (68.2± 13.2), with statistical difference. Conclusion A formative assessment could significantly improve skill acquisition of BLS among medical students.

Objective To analyze copy number variance (CNV) in whole genome by using gene chip technology, and to screen the radiosensitivity associated genes on esophageal squamous cell carcinoma (ESCC). Methods The patients with ESCC who received radiotherapy alone in Anyang Tumor Hospital from December 2013 to August 2016 were selected, and biopsy paraffin samples were preserved in the center of pathology. The patients were divided into radiosensitivity group (group S) and radio-resistance group (group R). DNA was extracted from these paraffin samples in both groups. Whole human genome CNV was detected by using genechip from OncoScan Array platform designed by Affymetrix company, and the differences of gene segments were screened in the two groups. Results Nineteen samples of ESCC patients were collected to extract DNA in this study. To balance pair analysis in the two groups, 10 samples were selected from the qualified patients, including 5 cases in group S and 5 cases in group R respectively. There were no statistical differences in gender, age, lesion site, lesion length, radiation dose of the two groups (all P> 0.05). Loss of heterozygosity (LOH) was the main type of CNV. The analysis results showed that LOH in q24.32-q24.33 of chromosome 10 and LOH in q21.2-q21.31 of chromosome 18 had high frequencies (100 ％) in group R, however, none were detected in group S. LOH in q27-q28.1 of chromosome 4 had a high frequency (80％) in group S , however, none were detected in group R. Conclusion LOH in 10q/18q is related to radio-resistance in ESCC, and LOH in 4p is associated with radiosensitivity in ESCC.

Objective:To investigate the mediating effect of spiritual health between emotional intelligence and humanistic care ability of nursing undergraduates, and to provide reference for cultivating humanistic care ability of nursing undergraduates.Methods:From May to July, 2023, the nursing undergraduates from Hunan University of Traditional Chinese Medicine, Hunan Normal University, Xi'an Medical College were selected as the research objects by convenient sampling method, and they were investigated by general information questionnaire, spiritual health scale, emotional intelligence scale and humanistic care ability scale.Using AMOS 29.0 to construct a structural equation model, this paper explored the mediating effect of spiritual health between emotional intelligence and humanistic care ability of nursing undergraduates.Results:Finally, 1 126 valid questionnaires were collected. Among 1 126 nursing undergraduates, there were 229 males and 897 females. The total scores of spiritual health, emotional intelligence and humanistic care ability of nursing undergraduates were (90.60 ± 11.02), (126.01 ± 11.90), (174.27 ± 15.16) points, respectively. The humanistic care ability of nursing undergraduates was positively correlated with spiritual health and emotional intelligence ( r=0.441, 0.417; both P<0.01), emotional intelligence and spiritual health were positively correlated ( r=0.397, P<0.01). Spiritual health had some mediating effects between emotional intelligence and humanistic care ability, and the amount of mediating effects was 32.24%. Conclusions:The humanistic care ability of nursing undergraduates is at a medium level, and emotional intelligence can influence humanistic care ability through spiritual health. Therefore, it is suggested that nursing educators should add courses and practical activities related to spiritual health in the training plan of nursing students to promote their emotional intelligence and humanistic care ability.

Cancer is the leading cause of death in children. With the development of family participatory care, it has become a trend to use home chemotherapy for children with cancer in stable stages. Therefore, this article introduces the current situation of home chemotherapy medication safety, elaborates on the influencing factors of family chemotherapy medication safety for cancer children from two aspects including oral chemotherapy and intravenous chemotherapy, and proposes intervention measures to optimize the family chemotherapy medication process for cancer children, improve their home chemotherapy medication ability and effectively ensure the medication safety of cancer children.

Objective To evaluate the efficacy and safety of 125I seed implantation combined with transcatheter arterial chemoembolization (TACE) in the treatment of primary hepatocellular carcinoma (PHC).Methods 156 patients who had unresectable PHC seen from January 2012 to December 2015 in our unit were randomly assigned into the study group (76 patients) and the control group (80 patients).The study group of patients were treated with intra-hepatic implantation of 125I seed + TACE,and the control group of patients were treated with three dimensional conformal radiotherapy (3DCRT) + TACE.After ra diotherapy the two groups of patients underwent 2 to 3 times TACE treatment.The biomarker levels were compared between the two groups before and after treatment,and the short-term efficacy,clinical safety and 1 year survival rates were assessed.Results The success rates of the treatment for the two groups were both 100％.Patients in the study group were implanted with 1 016 125I seeds,with an average of (13.7 ± 2.5) seeds per patient.The two groups had no significant difference on short-term efficacy (P ＞ 0.05).The DCR,ORR and 1 year survival rates in the study group were 63.2％,92.1％,55.5％,and they were 61.3％,90.0％,58.1％ in the control group,respectively.There were no significant differences between these 2 groups (P ＞ 0.05).At 1 month after treatment,the two groups had no significant differences onAFP,IGF-Ⅱ and IGFBP-2 [(5.08±0.85) μg/L vs.(5.12 ±0.79) μg/L,(4.77 ±0.58) μg/L vs.(4.86 ±0.53) μg/L,(4.98 ±0.67) μg/L vs.(5.04 ±0.71) μg/L] (P＞0.05).There were no signif-icant differences on chemotherapy drug toxicities between the two groups (P ＞ 0.05).The incidence of radi-ation hepatitis in the study group was 1.3％,while the incidences of radiation dermatitis,hepatitis,gastriculcer in the control group were 5.0％,8.8％,2.5％,respectively.The radiation dermatitis incidence inthe study group was significantly lower than that of the control group (P ＜ 0.05).In the study group,2 pa-tients (2.6％) had their 125I seed slightly moved.Conclusion The short-term efficacy of 125I seed implan-tation plus TACE in the treatment of PHC is no less than the 3DCRT + TACE regimen,but with less radia-tion side effects.