OBJECTIVE: To investigate the clinical features and operation treatment of the congenital middle ear cholesteatoma. METHOD: A retrospective review of clinical and surgical records of 10 patients with congenital middle ear cholesteatoma were performed. All patients were treated by surgeries,5 of 10 cases deal with one-stage tympanoplasty after drum exploration by external auditory meatus, 3 cases dealed with closed mastoidotympanectomy and tympanomastoidectomy, 2 cases dealed with open mastoidotympanectomy and tympanomastoidectomy. RESULT: The cholesteatomas were located at or around the posterior tympanum or mesotympanum in 5 patients, confined to the tympanic cavity and attic in 3 patients, advanced cholesteatoma that extended from the tympanic cavity into the mastoid antrum was seen in 2 patients. The mean postoperative PTA was 30 dB HL, the mean ABG was within 20 dB, after six months. No residual or recurrence of cholesteatoma was found. CONCLUSION The congenital cholesteatoma often originates from the posterior or anterior of the middle ear, with hiding lesion, thus result in severe conductive hearing loss. Imaging examination plays an important role in diagnosing and treating of congenital cholesteatoma. Early stage surgical treatment can obtain a good hearing reconstruction effect.
Adolescent ; Adult ; Child ; Child, Preschool ; Cholesteatoma ; congenital ; surgery ; Cholesteatoma, Middle Ear ; surgery ; Ear, Middle ; physiopathology ; Female ; Follow-Up Studies ; Humans ; Male ; Retrospective Studies ; Tympanoplasty ; methods ; Young Adult

Objective: To investigate the effects of Radix Ginseng and Radix Notoginseng formula on secretion of vascular endothelial growth factor (VEGF) and expression of vascular endothelial growth factor receptor-2 (VEGFR-2) in human umbilical vein endothelial cells (HUVECs) in vitro. Methods: HUVECs were cultured in vitro. Bovine basic fibroblast growth factor (bFGF) at concentration of 320 U/mL and Radix Ginseng and Radix Notoginseng formula at concentrations of 0.1, 0.2 and 0.4 mg/mL were used to culture with HUVECs. And HUVECs in blank control group were cultured with culture solution only. After 24-hour culture, the content of VEGF in supernatant was detected by enzyme-linked immunosorbent assay and the expression of VEGFR-2 was detected by immunocytochemical staining and Western-blotting. Results: Radix Ginseng and Radix Notoginseng formula at 0.4 mg/mL, the same as bFGF, increased VEGF content in the HUVEC supernatant and the number of VEGFR-2-positive HUVECs. Expression of VEGFR-2 protein in high-dose Radix Ginseng and Radix Notoginseng formula group was up-regulated as compared with the blank control group. Conclusion: Radix Ginseng and Radix Notoginseng formula can promote HUVEC proliferation and secretion of VEGF, as well as the expression of VEGFR-2 protein, which may be one of the mechanisms of Radix Ginseng and Radix Notoginseng formula in promoting angiogenesis.

Objective To observe the curative effect of pricking bloodletting combined with acupuncture on patients with piriformis injury syndrome.Methods A prospective randomized controlled clinical trial was conducted, 84 patients with piriformis injury syndrome admitted to the Department of Acupuncture and Massage in the First Affiliated Hospital of Xinjiang Medical University from May 2011 to May 2014 were enrolled, and they were divided into observation group and control group by random number table, each group being 42 cases. The patients in the observation group were treated with bloodletting once a week (after bloodletting no other treatment was given), and then once a day of acupuncture was performed for 4 days in a week, completing one therapeutic course; while in the control group, the patient was treated with routine acupuncture once a day for 5 days in a week, finishing one therapeutic course. The interval between two therapeutic courses was 2 days, two courses were carried out, and afterwards the clinical therapeutic effects were evaluated in the two groups. The changes of visual analogue scale (VAS) of two groups before and after treatment and the therapeutic effects were observed.Results The VAS score of the two groups after treatment was lower than that before treatment, and the degree of decrease of VAS score in the observation group was significantly lower than that of thecontrol group (1.50±1.35 vs. 2.69±1.68,P < 0.01); the total effective rate in the observation group was obviously higher than that in the control group [100.00% (42/42) vs. 69.05% (29/42),P < 0.01].Conclusion Pricking bloodletting combined with acupuncture therapy for treatment of piriformis injury syndrome can shorten the course of treatment.

Objective To compare clinical Pseudomonas aeruginosa different sources of β-lactamase-resistant phenotype differences,as to provide theoretical basis for guiding clinical rational use of antibiotics.Methods Isolation of 478 strains of Pseudomonas aeruginosa were collected from clinical specimens in the First Affiliated Hospital of Xi'an Jiaotong University from January to December 2015,by VITEK 2 Compact bacteria identification and drug sensitivity analysis of advanced expert system for β-lactamase-resistant phenotype,statistical analysis of drug resistance phenotype and antibiotic resistance.Results 478 strains of Pseudomonas aeruginosa were mainly composed of phenotype 5 and phenotype 3.Sputum,drainage fluid and bile duct bile specimens of Pseudomonas aeruginosa were based on phenotype 5,accounted for 31.08％,34.71％ and 38.46％.Multiple comparison x2 were 3.893,4.071 and 5.595,There was no statistical difference between groups compare significance (P＞0.05).Urine,secretions and whole blood samples of Pseudomonas aeruginosa were phenotype 3,accounted for 34.88 ％,27.78 ％,45.45 ％;Multiple comparison x2 were 6.654,9.956 and 9.852.There was no statistical difference between groups compare significance (P＞0.05).Sputum,drainage of liquid,bile duct bile and urine,secretion,whole blood specimens respectively source of Pseudomonas aeruginosa resistant phenotype distribution of two comparative difference was statistically significant (x2 =15.056～22.050,P＜0.05).Comparing the resistance of different β-lactamase-resistant phenotypes in Pseudomonas aeruginosa isolates from different sources:the sputum specimen source in imipenem,meropenem,piperacillin and piperacillin/tazobactam had significant difference (x2 =22.225～39.025,P＜0.05).There was statistical significance in department of hepatobiliary surgery only ceftazidime and meropenem differences (x2 =21.890～22.872,P＜0.05).Conclusion The phenotypic analysis of β-lactamase-resistant phenotypes of Pseudomonas aeruginosa from different specimens was different,which provided a theoretical basis for guiding the clinical application of antibiotics and the control of nosocomial infection of Pseudomonas aeruginosa.

Objective To develop a optimized rehabilitation protocol for acupuncture, Tuina and ultrasonic treatments of upper limb motor dysfunction after cerebral infarction.Methods An orthogonal design with three factors (acupuncture as factor A, Tuina as factor B and ultrasound as factor C) and two levels was used. Eighty cerebral infarction patients with upper limb motor dysfunction were randomly allocated to eight groups, 10 cases each. The National Institute of Health Stroke Scale (NIHSS) score and the simplified Fugl-Meyer Assessment (FMA) score for upper limb motor function were recorded after four weeks of treatment. Results There were no statistically significant pre-treatment differences in the NIHSS score and the FMA score for the upper limb between the groups (P>0.05). For an improvement in NIHSS, factors A and B were both significant (bothP<0.05); there was no statistically significant difference in factor C between the two levels (P>0.05). Factors A, B and C were all significant for an improvement in the FMA score for the upper limb (P<0.05,P<0.01,P<0.05). A2B1C1 was the optimal protocol.Conclusions A combination of bilateral acupuncture, Tuina and ultrasound is an optimized protocol for treating upper limb motor dysfunction after cerebral infarction. It can effectively reduce upper limb motor dysfunction.

Objective To explore the screening of peroxisome pathway reactive oxygen species (ROS) oxidative stress gene and its correlation with the antitumor sensitivity of artesunate against pancreatic cancer. Methods Based on microarray mRNA expressions of 55 tumor cell lines in the National Cancer Institute common database,peroxisome pathway-related key genes which were significant correlation with half-inhibitory concentration (IC50 )values of artesunate antitumor activity against human pancreatic cancer were selected by Kendall test.The candidate genes associated with artesunate sensitivity were identified and their mRNA expressions in pancreatic cancer cells were tested using fluorescent quantitative PCR.The contents of peroxi-dase in pancreatic cancer cells were detected through the DAB staining.Results Thirteen key genes mRNA expressions in peroxidase pathways were significantly correlated with IC50 values for artesunate antitumor activi-ty.Compared with normal liver cells HL-7702 (1.00),CRAT (2.89 ±0.06),PEX11B (1.90 ±0.07)and PEX16 (1.35 ±0.07)mRNA expression levels were significantly increased in pancreatic cancer Panc-1 cells which sensitive to artesunate (t =33.00,P <0.01;t =17.85,P <0.01;t =4.54,P <0.05).While CAT
(1.43 ±0.03),SOD1 (2.07 ±0.04)and SOD2 (1.15 ±0.01)mRNA expression levels were also signifi-cantly increased in Panc-1 cells which sensitive to artesunate (t =11.71,P <0.01;t =35.85,P <0.01;t =13.22,P <0.01).However,PEX12 (0.51 ±0.02),CAT (0.47 ±0.02),PRDX1 (0.43 ±0.01),and SOD1 (0.44 ±0.01)mRNA expression levels in pancreatic cancer BXPC-3 cells which resistant to artesunate were significantly lower than that of HL-7702 cells (t =37.53,P <0.01;t =16.52,P <0.01;t =84.20, P <0.01;t =48.24,P <0.01).DAB staining showed that the positive expression rate of peroxisomal content was apparently higher in Panc-1 cells (61.5%)than that of HL-7702 cells (43.8%),with a significant difference (χ2 =16.11,P <0.01).Conclusion Peroxisome and its related ROS antioxidant enzymes CAT, PRDX1,SOD gene expression may be the important factors that affect artesunate antitumor activity against human pancreatic cancer.

Objective To isolate and identify the putative Japanese encephalitis virus (JEV) re-ceptors from C6/36 and Vero cells. Methods Molecules binding with JEV were isolated from C6/36 and Vero cells by co-immunoprecipitation (Co-IP) approach, identified by mass spectrometry, and detected by Western blot. The location of putative JEV receptor on cells membrane and the binding with JEV were ob-served by laser scanning confocal microscopy (LCM). Results Several molecules binding with JEV were isolated from C6/36 and Vero cells by Co-IP, and only one molecule was identified as heat shock cognate 70 (HSC70) by mass spectrometry. Antibody against HSC'70 was able to detect a 74 ×103 protein isolated by Co-IP from C6/36 and Vero cells membrane in Western blot assays. It was observed by LSCM that when JEV attached on the surface of C6/36 cells, JEV and HSCT0 protein were co-localization. Conclusion 74 x 103 molecular identified as HSC70 protein from C6/36 cells may be JEV receptor.

This study aims to optimize the most effective component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma on lung cancer A549 using the orthogonal design method, and to investigate its effects of the component formula on cell proliferation, apoptosis and cytoskeleton in lung cancer A549 cells. The orthogonal design method was introduced to optimize the most effective component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma on lung cancer A549 cells. CCK-8 assay and Real-time cell analysis were adapted to analyze the effect of component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma on A549 cells viability at different time and dose. Cell apoptosis was measured by Annexin V- FITC/PI double staining and flow cytometry. Cell skeleton protein F-actin was detected by high content screening (HCS). The optimizing component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma for total salvianolic acid, total saponins of panax ginseng and ginseng polysaccharide doses were 5, 10, 5 mg L(-1). CCK-8 assay and real-time cell analysis demonstrated that the component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma treatment could significantly decrease the A549 cell viability in both dose- and time-dependent manner compared with control group (P < 0.01). Moreover, the increase of cell apoptosis was detected by Annexin V-FITC/PI double staining and flow cytometry when cells treated with the component formula, which indicating that the component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma could induce A549 cell apoptosis in a time-dependent manner compared with control group (P < 0.01). Furthermore, compared with control group, a significant decrease in A549 cell skeleton area was found in the component formula-exposed cells in the dose-dependent manner (P < 0.01). In summary, the component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma inhibits A549 cell proliferation by inducing cell apoptosis and decreasing cell microfilament formation. All of these results will be helpful to reveal antitumor mechanism of the component formula of Salviae Miltiorrhizae Radix et Rhizoma and Ginseng Radix et Rhizoma, which provides a basis for the exploration of antitumor mechanism of the component formula on lung cancer.
Apoptosis ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Lung Neoplasms ; drug therapy ; Panax ; chemistry ; Plant Extracts ; chemistry ; pharmacology ; Plant Roots ; chemistry ; Rhizome ; chemistry ; Salvia miltiorrhiza ; chemistry

Objective To check the teaching effect of whole English presentation for surgery course.Methods Totally 29 eight-year program clinical majors were enrolled in the study.Questionnaire after class was conducted.Relationship between understanding level and English ability of students,abroad experiences,presentation ability or technical title of teachers was analyzed by x-test and nonparametric test.Results It showed that the understanding level of students was higher when being taught by teachers with longer abroad experience or with quality course (P =0.00).Understanding level of students was higher when students had higher English ability (P =0.00).There was no obvious relationships between understanding level and technical title of teachers (P =0.10).Conclusions Teaching effect of whole English presentation is closely correlated with teachers' teaching ability and students' English ability.

Objective To investigate the effect of tea polyphenols on global cerebral ischemia reperfusion injury in rats.Method Forty-five pathogen-free male SD rats weighing 180-220 g were randomly divided into 3 groups( n =15 each):sham operation group (group S),cerebral ischemia reperfusion group (group IR) and tea polyphenols group (group TP).Global cerebral ischemia reperfusion injury was establish by four-vessel occlusion method.At 24 h of reperfusion,five rats were chosen and Evan's blue(EB) was injected iv,and then sacrificed and brain was removed for determination of EB content; another five rats were sacrificed and brain was removed for determination of water content; five rats were chosen for Morris water maze test.Result Compared with group S,EB content and water content in brain tissue were increased in groups IR and 'rP,and escape latency was prolonged,frequency of crossing the original platform was reduced in group IR ( P ＜ 0.05 ).Compared with group IR,EB content and water content in brain tissue were decreased,and escape latency was shortened,frequency of crossing the original platform was increased in group Tp ( P ＜ 0.05).Conclusion Tea polyphenols can attenuate global cerebral ischemia reperfusion injury in rats.