Objective To compare the effective difference of the flying needle with intradermal needle among the shu-acupoint group , the estazolam group and the non- point acupuncture group. Methods Three undred and fifteen patients who met the inclusion criteria were randomly enrolled into three groups for the insomnia severity index (ISI) and rating changes detection. After 2-week treatment,the patients were followed up at 4 weeks later. Results The ISI decreased gradually at 1 week, 2 weeks, and 4 weeks after treatment.The therapeutic effects of the three groups were all better than ever before at 1 week, 2 weeks, and 4 weeks after treatment (P<0.05). The follow-up therapeutic effect of the flying needle acupuncture group was better than that of the estazolam group and of the non-point acupuncture group (P<0.05). The curative effect of flying needle acupuncture is better than that in the other two groups (P < 0.05). Conclusion The subjective sleep quality of insomnia patients received flying needle with intradermal needle in shu-acupoint is beter than that of insomnia patients of the Estazolam group and of the non-point acupuncture group.

In the present study, the effect of fibroblast-mediated IL-2 gene therapy on immune and hematopoietic reconstitution was observed after syngeneic bone marrow transplantation (BMT) in the mice which had received high-dose chemotherapy. The NK activity , LAK activity and the proliferation of BMT were augmented significantly , while there were no effects on the formation of CFU-GM, CFU-MK and CFU-E of bone marrow after IL-2 gene therapy. The results suggested that fibroblast-mediated IL-2 gene therapy can accelerate and prompt the process of immune reconstitution, then enchance the antitumor effect and reduce the complication such as infection after BMT. The experiment provide basis for the application of IL-2 gene therapy in BMT in the future.

Objective To explore the effect and mechanism of glucose regulated protein 78 (GRP78) on autophagy and apoptosis in ovarian carcinoma, and to investigate the influence on the growth and sensitivity to cisplatin on the ovarian cancer cells.Methods The human ovarian cancer cell line SKOV3 were treated by the GRP78 regulator BAPTA-AM and A23187, which were used to decrease or increase the expression levels of GRP78, respectively.The experiment were divided into three groups.Cells in the group of BAPTA-AM were treated by BAPTA-AM at the final concerntration of 40 μ mol/L for 1 hour.Cells in the group of A23187 were treated by A23187 at the final concerntration of 4 μmol/L for 24 hours.While, cells in the control group were treated by culture medium without any GRP78 regulator for 24 hours.The expressions of GRP78, beclin1, Bcl-2 and CHOP mRNA and protein were detected by reverse transcription (RT)-PCR and western blot.The autophagy levels was observed by green fluorescent protein-microtubule-associated protein 1 light chain 3-Ⅱ (GFP-LC3-Ⅱ) fluorescence staining.The flow cytometry was used to analyse the apoptosis rates of cells.The effect on cell growth and the sensitivity to cisplatin of SKOV3 were accessed by methyl thiazolyl tetrazolium (MTT).Results (1)The mRNA expressions of GRP78, beclin1, Bcl-2 and CHOP in the group of BAPTA-AM were 0.583±0.025, 0.860± 0.055, 0.714±0.032 and 0.811±0.004, respectively.The mRNA expressions of GRP78, beclin1, Bcl-2 and CHOP in the group of A23187 were 0.840± 0.044, 0.654 ± 0.065, 0.908 ± 0.047 and 0.620 ± 0.062, respectively.The mRNA expressions of GRP78, beclin1, Bcl-2 and CHOP in the control group were 0.687± 0.032, 0.772 ±0.029, 0.845 ±0.018, 0.712 ± 0.077, respectively.While the protein expressions of GRP78, beclin 1, Bcl-2 and CHOP in the group of BAPTA-AM were 0.423±0.035, 0.952±0.022, 0.385±0.032, 0.681± 0.095, respectively.The protein expressions of GRP78, beclin1, Bcl-2 and CHOP in the group of A23187 were 0.743 ±0.032, 0.638±0.025, 0.596±0.029, 0.431 ±0.095, respectively.The protein expressions of GRP78, beclin1, Bcl-2 and CHOP in the control group were 0.617±0.031, 0.789±0.083, 0.492±0.036, 0.531 ± 0.003, respectively.The mRNA and protein expressions of beclin and CHOP in the group of BAPTA-AM were both higher than those in the control group (P＜0.05).While, the mRNA and protein expressions of beclin and CHOP in the group of A23187 were both lower than those in the control group (P＜ 0.05).(2) The autophagy fluorescence of SKOV3 in the group of BAPTA-AM, A23187 and the control group were 706±117, 473±128, 595± 126, respectively, in which there were significant differences among three groups (P＜0.05).(3) The apoptosis rate of SKOV3 in the group of BAPTA-AM was (27.4±2.2)％, which was higher than that in the control group [(19.6± 1.4)％, P＜0.05].The apoptosis rate of SKOV3 in the group of A23187 was (12.2± 1.9)％, which was lower than that in the control group (P＜0.05).(4) The comparison of the sensitivity to cisplatin in 3 groups of SKOV3.The 50％ inhibition concentration (IC50) of SKOV3 to cisplatin was (3.02±0.62) mg/L.After treated by BAPTA-AM + cisplatin, the IC50 was (2.00±0.17) mg/L and the sensitivity of SKOV3 to cisplatin was increased by 33.8％, and there was significant difference (P＜0.05), compared with the control group.And after treated by A23187 + cisplatin, the IC50 was (4.91±2.52) mg/L and the sensitivity of SKOV3 to cisplatin was decreasd by 62.6％;and there was significant difference (P＜0.05), compared with the control group.Conclusion GRP78 could regulate autophagy and apoptosis of ovarian cancer cells by regulating the expressions of beclin1, Bcl-2 and CHOP, thereby affecting the sensitivity to cisplatin in ovarian carcinoma, which may be a new method for the treatment and improvement of the sensitivity to cisplatin in ovarian carcinoma.

Objective:To construct a fusion protein of extracellular domain peptide fragment of muscle specific kinase ( MuSK) and fluorescent protein mCherry ,and used as antigen in the detection of antibodies against MuSK ( MuSKAb ) in the sera of patients with myasthenia gravis ( MG).Methods:The mCherry gene was amplified by PCR from vector pRSET-B and cloned into pGEM-T Easy Vector,and furthermore, cloned into Eukaryotic expression vector pMT /BiP/V5-His ( MuSK), which contains MuSK extracellular domain 22-452 amino acid peptide fragment gene to construct the fluorescent fusion protein gene MuSK -mCherry.The recombinant vector was subsequently transfected into drosophila S 2 cells for expression.The expressed fusion proteins were verified in confocal mi-croscope ,and used as antigen in the detection of MuSKAb in sera of MG patents in fluorescence immunoprecipitation test .Results:The fluorescent fusion protein MuSK-mCherry was successfully constructed and expressed.The MuSKAb in sera of patents with MG could be detected in fluorescence immunoprecipitation test using the constructed MuSK-mCherry fusion protein as antigen.Conclusion: It is available to use the constructed fluorescent fusion protein MuSK-mCherry as antigen in fluorescence immunoprecipitation test for the detection of MuSKAb in sera of patents with MG.

By using 5'-nucleotidase-alkaline phosphatase (5'-Nase-AlPase) double staining method, the fine distribution of the lymph vessels in the stomach wall of the rabbit, guinea pig and rat has been observed. Under light microscope lymph capillaries showed strongly 5'-Nase positive reaction with brown or dark brown staining. However blood capillaries revealed significantly A1Pase activity with blue staining. The lymph capillaries were seen in all layers of the stomach wall in three species, but the lymph vessels were only shown in the submucosa, muscularis and serosa. In the mucosa lymph capillaries could be found in the deep layer of the lamina propria. In the submucosa there were lymph vessels and capillaries. In the muscularis lymph capillaries and vessels not only could be found between oblique and circular muscle or between circular and longitudinal muscle, but also among muscle fiber bundles of each layer. In the serosa there were larger lymph vessels situated near the muscularis. The observation on semithin and ultrathin sections also shown the similarity in the lymph vessels distribution. There was no difference in the distribution of lymph vessels in the stomach wall between rabbit, guinea pig and rat.

The effects of atomic oxygen radical anion (O-) on the inactivation and morphological changes ofEscherichia coli (E. coli)on the surface of bio-indicator carrier were investigated. The O- flux was generated from a novel developed O- generator where the Oinactivation ofE. coli was sensitive to the O- intensity and the cell mortality was enhanced to more than 3-logarithm reduction with the exposure to 1.5 mA/cm2 O- flux for 120 min. Field emission scanning electron microscopy (FESEM) observations showed that O- flux destroyed cellular structures. Lipid peroxidation reaction induced by atomic oxygen radical anion for E. coli cells was also observed using product of malondialdehyde (MDA) as an index. The concentration of MDA increased to 1.2 μmol/g(dry weight) of cells when E. coli suspension (5.6×107 cfu/ml) was treated by the O- flux (1.5 μA/cm2) for 15 min. The findings revealed that the atomic oxygen radical anions, with strong oxidation power, was effective in inactivating E. coli and caused lipid peroxidation reaction at the first time,which would be potential useful to develop a novel approach for the microbial decontamination and for the study on the interactions between microorganisms and O-.

Objective:To investigate the association of single nucleotide polymorphisms (SNPs) of receptor-associated protein at the synapse ( rapsyn ) with myasthenia gravis ( MG ).Methods: The genomic DNA was extracted from peripheral blood cells , sampled from 132 patients with MG and 153 control individuals.The 8 exons of rapsyn gene were amplified by PCR ,then the products of PCR sequenced directly.Each sequence was compared with wild-type rapsyn gene , and the association between mutation and clinical symptoms of MG analysed.Results:No mutation was found in the exons 1,2,4,5,6,7,and 8 of rapsyn gene both in MG patients and control group compared with the wild-type rapsyn gene.However,a new SNP,L222R[CTG>CGG(2)] or T665G,was found in exon-3.The allele and genotype frequencies of SNP L 222R met Hardy-Weinberg genetic equilibrium (P>0.05),indicating the group repre-sentativeness.The allele frequencies of G were not statistically different between patient and control groups ( P>0.05 ).There were differences in the 3 genotypes TT , TG and GG between patient ( 42.4% vs 48.5% vs 9.1%) and control ( 49.0% vs 33.3% vs 17.6%) groups ( P<0.05 ).The genotype frequencies of GG were statistically higher in control group than that in patient group , showing a recessive model of inheritance.Conclusion: The SNPs in the rapsyn gene are associated with MG in this study.L222R ( T665 G) is a new SNP found and allele G might be a protective factor for MG.

Objective To establish the genetic and biochemical loci in Mesocricetus auratus and its albino mua-tant.Methods Protein isozyme cellulose acetate electrophoresis was used to determine the genetic and biochemical loci in Mesocricetus auratus and its albino mutant, using the genetic and biochemical loci of mice and rats.Results 25 biochemi-cal markers of Mesocricetus auratus and albino mutant were established, and polymorphism of their genetic biochemical loci was analyzed.Conclusions Polymorphism of biochemical loci is present in Mesocricetus auratus.Some differences exist between the genetic biochemical loci of Mesocricetus auratus and their albino mutant.These results laid the foundation for further study on genetic mechanism of albino mutation in Mesocricetus auratus.

Objective:To investigate the diagnostic value of synthetic MRI methods in the differentiation of benign and malignant breast lesions.Methods:Clinical and imaging data of 93 breast patients confirmed by pathology in the Second Affifiliated Hospital of Xi′an Jiaotong University from May 2019 to April 2020 were analyzed retrospectively. All patients underwent synthetic MRI technique, and the quantitative parameters of T 1, T 2, and proton density (PD) values were measured. Independent samples t-test and Wilcoxon test were used to compare the differences in clinical and imaging characteristics between the benign and malignant breast lesions. ROC curve was used for the comparison of the diagnostic efficacy of the quantitative parameters in differentiating malignant from benign breast lesions. Results:Of the 93 patients with breast lesions, 62 cases were malignant and 31 cases were benign. The quantitative T 2 values for benign and malignant lesions were 103 (93, 126)ms and 83 (77, 90)ms respectively, and the quantitative PD values were 87.7 (72.7, 96.7)pu and 73.5(63.3, 79.4)pu respectively. There were statistically significant differences between benign and malignant lesion( P<0.05). Taking quantitative T 2 values of 90.5 ms and PD values of 84.8 pu as the cut-off value, the area under the ROC curve in differentiating benign from malignant breast lesions were 0.87 and 0.75, accuracy values were 80.6% and 78.5%, specificity values were 87.1% and 54.8%, sensitivity values were 77.4% and 90.3% respectively. Conclusion:Synthetic MRI methods can be applied in the examination of breast lesions and has the potential to be an effective diagnostic method for the differential diagnosis between benign and malignant lesions of breast.

Objective To systemically review andquantify the incidence of oral feeding intolerance in acute pancreatitis. Methods Randomized controlled trials that reported the oral feeding intolerance rates of acute pancreatitis were searchedfrom PubMed, EMBASE, Medline, Cochrane Library, WanFang, CNKI, CMCC and VIP dal,abase wilh the" Acute pancreatitis " " Feeding intolerance" " Incidence" " Meta- analysis "from January 2002 to May 2017. Date were analyzed by using R 3. 4. 0 software. The heterogeneity of data were analyzed using 12test. Results Eleven randomized controlled trials including 658 cases were enrolled in Meta-analysis. The incidence of oral feeding of intolerance was 12. 2% . The result of subgroup analysis showed that there were no significant difference in the incidence of oral feeding intolerance when region, sample size and published year were taken into analysis (P > 0. 05). The oral feeding intolerance rate of mild acute pancreatitis was lower than that when moderately severe acute pancreatitis and severe acute pancreatitis were, included (8. 2% and 19. 9% , respectively; P = 0. 002 7). Conclusion Oral feeding intolerance affects approximately l in 8 patients with acute pancreatitis. The incidence of oral feeding intolerance of patients with severe acute pancreatitis is higher than that of patients with mild acute pancreatitis