Objective　To synthesize the artificial antigen methylparaoxon （M1600）.Methods　Methylparaoxon was reduced into amino-methylparaoxon by using acetic acid-zinc power-hydrochloric acid. Artificial antigens M1600-BSA， M1600-TTH　were synthesized by conjugating amino-methylparaoxon to bovine serum albumin （BSA）and tachypleus tridentatus hemocyanin （TTH）directly after diazotization.Results　 Rabbits had been immunized with M1600-BSA for 10 weeks， and the high titer and high specificity antiserum from those rabbits was testified by doubled agar gel diffusion and indirect ELISA．Conclusion　An artificial antigen was obtained successfully and this made it possible to establish the immunoassay of M1600.

Objective To observe the therapeutic efficacy of paired needling in treating insomnia with depression after cerebral stroke. Method Eighty patients with insomnia plus depression after cerebral stroke were randomized into a treatment group and a control group, 40 cases in each group. The treatment group was intervened by paired needling at Xinshu (BL15), Juque (CV14), Ganshu (BL18), and Qimen (LR14), once a day, 20 min each session;the control group was by oral administration of Paroxetine hydrochloride tablet 20 mg, 1 tablet each time prior to sleep at night. Two treatment courses were observed in the two groups (successive 2-week treatment as a course). The Pittsburgh Sleep Quality Index (PSQI) was adopted to observe the two groups before treatment, after 2-week treatment, and after 4-week treatment, and the clinical efficacy was also evaluated. Result Respectively after 2-week and 4-week treatment, the PSQI scores and Hamilton Depression Scale (HAMD) scores dropped significantly in the two groups compared to that before the intervention (P<0.05);the improvements of the PSQI and HAMD scores in the treatment group were more significant than that in the control group;the scores were markedly improved in the 2nd week in the treatment group and were significantly different from that in the control group (P<0.05);the significant differences were maintained in the following 2 weeks;the total effective rate was respectively 90.0%(36/40) in the treatment group and 15.0%(6/40) in the control group, and the therapeutic efficacy of the treatment group was markedly superior to that of the control group (P<0.05). Conclusion The results show that paired needling is safe and effective in treating insomnia with depression after cerebral stroke, and its therapeutic efficacy is superior to that of Paroxetine hydrochloride tablets.

SCCmec Ⅳ.The strains with SCCmec Ⅱ and SCCmec Ⅲ were multi-resistant and their resistance rates were higher than SCCmec Ⅳ (P

As one of the first pilot eight-year clinical medicine education institutions, Xiangya School of Medicine has already put it into practice for almost 12 years. After years exploring and reforming, its cultivating plan has already been built up. This paper will make a brief comparative analysis between 2004 version and 2012 version in cultivating objectives, model and characteristics, demonstrated the development and reform of its eight-year program education, shown its features such as strengthening the basic knowledge, emphasizing the clinical skills, cultivating the capabilities, and broadening the international perspectives, and attempt to contact the residency and research training, in order to provide the reference for the eight-year program education reform.

Bombyx mori bidensovirus (BmBDV) has been identified as causing chronic densonucleosis in Bombyx mori specifically. The replication mechanism of BmBDV remains unknown. Its genome comprises two single stands DNA (VD1 and VD2). In order to rescue infectious virions in vitro, we obtained the total viral DNA extracted from the BmBDV-infected larvae midguts, subsequently cloned the full-length sequence of BmBDV genome fragments by PCR and constructed recombinant plasmids pMD18T-VD1 and pUC-VD2. The linear genome fragments were obtained by digesting recombinant plasmids with corresponding restriction enzymes, and then collectively transfected BmN cells by the method of liposome-embedding. We determined the replication of the virus gene by PCR with the template of demethylated total DNA extracted from the post-transfect BmN cells. Meanwhile, we collected the total proteins from the post-transfect BmN cells and the larvae midgut of feeding the post-transfect BmN cells to perform Western blotting analysis, and detected the expression of viral genes. Here we firstly confirm that infectious virions can be rescued in BmN cells by linear co-transfect method.
Animals ; Bombyx ; DNA, Viral ; Densovirus ; growth & development ; Larva ; Transfection ; Virion ; Virus Cultivation

OBJECTIVE: To summarize the clinicopathologic feature and diagnostic and therapeutic experience of laryngeal contact granuloma. METHOD: A retrospective study was carried out among 18 cases with this disease through careful analysis on their clinical and pathological data. RESULT: All of 18 cases were male, aged 34 to 78 years,The most common symptoms were hoarseness. In general the granuloma located on the posterior of the larynx unilaterally. The histological appearances of the lesions were typical inflammatory granuloma. Little allotype cell were found in one histologic sample. Fifteen cases received surgical excision and the recurrence rate was 60% after operation. Recidivist received operation again,4 cases among these cases received antireflux therapy after operation but 3 cases recurrences again. Among those follow-up cases(3 cases), 1 case was self-cure and other 2 cases appeared no marked change during observation period. CONCLUSION Laryngeal contact granuloma predilected the middle-aged male. The localization and appearance of the granuloma is very characteristic. The correct diagnosis can be established by clinical examination alone, but the histological examination is necessary in order to avoid missed diagnosis. There is a high recurrence rate after operation and the effect of antireflux therapy need further research.
Adult ; Aged ; Granuloma, Laryngeal ; pathology ; surgery ; Humans ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Otorhinolaryngologic Surgical Procedures ; Retrospective Studies

Medical simulation teaching is an emerging and developing teaching method in our coun-try. At present, the simulation teaching centers are developing rapidly in higher education institutions, but how to improve the effectiveness in the operation of the centers is still a subject that needs to be discussed. Based on our own experience, this paper analyzes the related factors in developing medical simulation teach-ing centers, making summary and demonstrations from aspects of team building, teacher training, docking needs, staffing and so on, so as to provide references and suggestions for the construction of medical simu-lation center higher education institutions.

Objective: To evaluate the expression of cytokeratin (CK)7, CK8/18, CK19 and p40 in esophageal squamous cell carcinoma (ESCC) and its significances. Methods: One hundred and ninety cases of surgically resected ESCCs and 154 normal esophageal tissues as control were collected at the First Affiliated Hospital of Zhengzhou University in 2012.Of the 190 ESCC cases including 116 male and 74 female, aged 28-82 (60.3±8.6) years, 88 cases <60 years old and 102 cases ≥60 years old. Tissue sections were immunostained for CK7, CK8/18, CK19 and p40, and the expression was evaluated and correlated with the clinicopathologic findings and outcome. Results: CK19 and p40 were expressed in 190 cases of ESCCs; with 147 cases (77.4%) and 151 cases (79.5%) showing high p40 and CK19 expression, respectively; while 43 cases (22.6%) and 39 cases (20.5%) showed low p40 and CK19 expression, respectively. The low expression groups showed more lymph node metastases and higher pTNM stages compared to the high expression groups. The high CK19 expression group showed better prognosis than the low expression group (P<0.01); p40 expression was not correlated with prognosis(P>0.05). In contrast, CK7 and CK8/18 expression was only seen in 29 cases (15.3%) and 59 cases (31.1%) of ESCCs, respectively, and their expression correlated significantly with the degree of tumor differentiation and lymph node metastasis (P<0.05). The prognosis in the CK7 negative group was better than that in the CK7 positive group. Similar results were found in CK8/18 expression. Multivariate analysis revealed that pTNM stages, low CK19 expression and CK8/18 expression were independent prognostic factors. Conclusions Low p40 expression and the expression of CK7 and CK8/18 cannot exclude poorly-differentiated ESCCs.CK7 and CK8/18 expression and low CK19 and p40 expression in the ESCCs are associated with lymph node metastasis and poor prognosis. Decreased expression of CK19 and positive expression of CK8/18 in ESCCs are independent prognostic markers.

The link between nonresolving inflammation and cancer is well documented. On the one hand, epidemiologic evidence supports that approximately 25% of all human cancer worldwide is caused by nonresolving inflammation. On the other hand, inflammatory cells are found in the microenvironment of most, if not all, tumors. In the tumor micro-environment, inflammatory cells and molecules influence almost every aspect of cancer. MicroRNAs (miRNAs) participate in the initiation and progression of nonresolving inflammation-related cancer by regulating the key genes and related signaling pathways. Further investigation into the molecular mechanisms by which miRNAs carry out their functions will be of great value in the prevention, early diagnosis, and treatment of tumors.
Chronic Disease ; Humans ; Inflammation ; complications ; genetics ; immunology ; Inflammation Mediators ; immunology ; MicroRNAs ; genetics ; Neoplasms ; etiology ; genetics ; Tumor Microenvironment

Objective To discuss the medication law of Professor Gu Shizhe in the treatment of insomnia based on various data mining techniques.Methods Clinical information of patients of Professor Gu was collected from the hospital management information system of outpatient clinic of Beijing University of Chinese Medicine(BUCM)and BUCM Famous Elderly TCM Inheritance Research Integrated Platform from January 2018 to October 2022.Professor Gu's books,such as Zhi Zhen Zhi Yao,and Gu Jisheng,Gu Shizhe Yi An Yi Hua Jing Cui,and the medical records from CNKI were screened.WPS Office 5.2.1 was used to build a database of medicine data for Professor Gu's TCM prescriptions,and R 4.2.1 was used for descriptive analysis and Apriori association rule analysis.SPSS Statistics 26.0 was used for clustering analysis,combined with theoretical analysis,to extract Professor Gu's medication law and characteristics in the treatment of insomnia.Results A total of 307 prescriptions were included,involving 250 kinds of Chinese materia medica,among which 30 were high-frequency drugs.The top 5 most frequently used were Glycyrrhizae Radix et Rhizoma Praeparata Cum Melle,Fossilizid,Poria,Bupleuri Radix,and Ziziphi Spinosae Semen.The meridians were mainly liver and lung meridian,and the properties were mainly warm and cold,and the tastes were mainly sweet and bitter.Five core drug groups were obtained by clustering analysis,including Xiaochaihu Decoction,Erchen Decoction,Huanglian Wendan Decoction,Suanzaoren Decoction,Xiaoyao Powder and other prescriptions.Conclusion The characteristics of Professor Gu's treatment of insomnia are to reconcile Shaoyang,clear the heart and soothe the mind;pay attention to yin and yang,regulate the liver;pay attention to the liver,gallbladder,spleen and stomach;the main idea of syndrome differentiation is to reconcile Shaoyang,run the Shaoyang cardinal,and at the same time regulate qi and benefit qi and nourishes yin.