Chemiluminescence method was used to measure: (1) active oxygen species generation induced by respiratory burst of polymor-phonuclear leucocytes (PMNs) from human blood stimulated with phorbol myristate acetate (PMA); (2) superoxide (O2) induced by xan-thine-xanthine oxidase system; (3) hydroxyl radicals ( ? OH ) generated by Vit C- Cu2+- zy-mosan; (4) the release of hydrogen peroxide (H2O2). Effects of polydatin IV on these active oxygen species were observed. The resultsshowed early stage of respiratory burst of PMNs was inhibited,but the later stage was delayed by polydatin IV, (2), (3) adn (4) were scavenged by polydatin IV and their median inhibitory concentrations (IC50?mol ? L-1) were 14.6,29.6 and 13.0 respectively. The results suggested that polydatin IV was a scavenger.

OBJECTIVE To study the antibiotic resistance of Staphylococcus isolated from the burn patient wounds. METHODS The sensitivity to 14 common antimicrobial agents was deteded by K-B method. MRSA and MRCNS were detected by cefoxitin disk;the inducible resistance to clindamycin was detected by D-test. RESULTS There were 378 strains of Staphylococcus isolated from the burn patient wounds. The isolation rates of Staphylococcus epidermidis,S. aureus and S. haemolyticus were 43.1%,41.6% and 11.1%. Antibiotic resistance rate to vancomycin,teicoplanin,minocycline,rifapin and nitrofurantoin was 0.0-19.0%,the resistance rate to other antibiotics was 54.1-100.0%. The detection rate of MRSA was 81.5%,the detection rate of MRCNS among S. epidermidis and S. haemolyticus was 55.6% and 66.7%. The total positive rate of D-test was 48.2% in Staphylococcus which were sensitive to clindamycin but resistant to erythromycin. The positive rate of S. aureus,S. epidermidis and S. haemolyticus were 49.1%,44.2% and 57.1%. CONCLUSIONS Staphylococcus are ones of the important pathogens which make burn wound infection happen and the antimicrobial resistance is increasingly severe. The high positive results of MRSA and D-test make great trouble to therapy,and that should have taken more attention of clinic.

Cochlear Implantation ; Cochlear Implants ; Humans

Objective To understand the effect of astragalus on insulin resistance and plasma amylin levels in newly diagnosed type 2 diabetic patients.Methods 88 patients of newly diagnosed type 2 diabetes were randomly divided into three groups:Group A (lifestyle intervention group) contained 30 patients,Group B (metformin treatment group) also contained 30 Patients,and Group C (astragalus and metformin treatment group) contained 28 Patients.Patients in group A were intervened with the control of diet,blood pressure and lipids level; patients in group B were additionally treated with metformin on the basis of group A; patients in group C were additionally treated with metformin and astragalus on the basis of group A.The course for both treatments were 8 weeks.Various clinical and biochemical parameters were detected before and after the treatment in all three groups and enzyme-linked immunosorbent assay was adopted for the detection of plasma amylin.Results Fasting blood glucose levels were significantly decreased after treataent in the three groups (t=-2.696、-4.029、-3.995,P＜0.05) ; insulin resistance index reduced in group B and group C (t=-2.599、-3.813,P＜0.05),the difference between group C and group B was statistically significant (t=-2.334,P＜0.05) ;treatments of group B and group C could improve the beta cell function index (t=2.303、2.384,P＜0.05),and they also could increase the plasma amylin level (t=2.341、3.045,P＜0.05).Conclusion Astragalus and metformin can improve insulin resistance index and increase plasma amylin levels in newly diagnosed type 2 diabetic patients.

AIM: To explore the anti-tumor effect and the mechanism of dihydroarteannuin in C57BL/6J mice with lewis lung cancer. METHODS: Fifty C57BL/6J mice subcutaneously planted with 3LL lung cancer cells (2?106) were randomly divided into 5 groups: blank control group, same volume of normal saline group, positive control DDP group, low, middle and high dose dihydroarteannuin groups. Changes of body weight and inhibitory rate of tumor in each group were observed. The cell cycle and apoptosis rates were analyzed by flow cytometry. RESULTS: The body weights were decreased in middle and high dose group compared with NS group and the inhibitory rate of tumor were 53.50% and 59.24% respectively. FCM assay indicated that Dihydroarteannuin could induce apoptosis of lung cancer cell. At the same time, the number of G0/G1 and G2/M phase cells was decreased. Most of the cells were arrested in S1 phase. CONCLUSION: Dihydroarteannuin has obviously effect on anti-tumor in C57BL/6J mice with lung cancer. Its possible mechanism might be involved in inducing cancer cell apoptosis.

Objective To analyze the antimicrobial resistance profile of clinical isolates in Shanghai Xinhua Hospital Chongming Branch affiliated to Shanghai Jiaotong University School of Medicine , a member of China Antimicrobial Resistance Surveillance System, during 2015, for the purpose to facilitate rational antimicrobial therapy. Methods Strain identification?and?susceptibility?testing?were?carried?out?for?the?clinical?isolates?using?MicroScan?WalkAway?96?Automated?Systems and Kirby-Bauer method. Results In 2015, a total of 1815 isolates were collected, including gram-negative bacteria (73.2 %) and gram-positive bacteria (26.8 %). The top three frequently isolated species were Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. ESBL-producing strains were found in 36.3 % of the Escherichia coli isolates, 12.6 % of the Klebsiella (K. pneumoniae and K. oxytoca) isolates, and 28.0 % of the Proteus mirabilis isolates. The prevalence of carbapenem-resistant strains was 0.69 % in Enterobacteriaceae isolates. The prevalence of methicillin-resistant strain was 29.1 % in S. aureus, and 61.4 % in coagulase-negative Staphylococcus isolates. No more than 15 % of the Enterobacteriaceae isolates and no more than 20 % of the P. aeruginosa and Acinetobacter isolates were resistant to carbapenems. No vancomycin-or linezolid-resistant strains were found in Enterococcus or Staphylococcus. Conclusions Antibiotic-resistant clinical isolates are a serious threat for clinical antimicrobial treatment. We should pay more attention to such urgent situation and rational use of antibiotics.

Objective To investigate the effect of Zidan decoction containing serum on endometrial receptivity in uterine immunity environment,and then to discuss if it's effect on endometrial receptivity through its controlling the expression of cell factors which related to endometrial receptivity.Methods Mice's endometrium tissue samples and uterine Natural Killer (UNK) cells were obtained from pregnant mice on gd 4.5 days and gd 12.5 days.After endometrial glandular epithelial cells,endometrial stromal cells and UNK cells were separated through primary culture,epithelial cells and endometrial stromal cells at rate of 1 ∶ 1 a certain concentration UNK were mixed together and highly purified-cultured.Different concentrations of Zidan decoction was acted on the culture solution.FBS,black and aspirin control group were setup for contrast.The expression of LIF and VEGF which influenced by Zidan decoction in the immunity environment was assayed by Realtime-PCR.Results The expression of LIF and VEGF was significantly increased in the immunity environment of uterine (in 10％ Zidan decoction group,10％ aspirin group and 10％ blank control group:LIF was 2.10±0.20,1.98±0.14,0.90±0.05 separately,and VEGF was 3.17±0.31,2.52±0.09,0.92±0.06respectively,P＜0.05).Conclusion Zidan decoction could improve endometrial receptivity by increasing the expression of cell factor which related to endometrial receptivity with the help ofUNK paracrine.

BACKGROUND: Following trauma caused by seawater, cells often exhibit special pathological changes because of the special physico-chemical properties of seawater.OBJECTIVE: To observe corneal histopathological changes and interleukin-6 level in aqueous humor of a rabbit model of penetrating corneal trauma combined with seawater immersion.METHODS: The rabbit eye models of penetrating corneal trauma caused by firecrackers were established in 16 adult healthy grey rabbits. A 3-mm whole-layer incision was made in the cornea. The right eyes served as experimental sides and the left eyes served as controls. Seawater was injected into the aqueous humor of the right eyes via the corneal incision. The eye surface was flushed with seawater for 30 minutes. Physiological saline was used for the left eyes. RESULTS AND CONCLUSION: Optical microscopy results showed that at 1, 2, 3 days after model establishment, corneal cells on the experimental side exhibited severe necrosis and abscission, obvious swelling of substantia propria layer complicated by cellular infiltration. At 1 and 2 days after model establishment, the pathological changes on the control side were the same as the experimental side, but they were mild, but at 3 and 5 days, they were obviously alleviated. At 1, 2, 3 days after model establishment, interleukin-6 level in aqueous humor was significantly higher on the experimental side than on the control side (P < 0.05). These findings suggest that the degree of injury on the experimental side was more severe than that on the control side, indicating that seawater may be an important causative factor of corneal injury.

Objective To understand the serum levels of advanced glycation end products (AGEs),soluble receptor for advanced glycation end products (sRAGE) in newly diagnosed patients with type 2 diabetes.Methods 60 patients of newly diagnosed type 2 diabetes were chosen from 2010 September to 2011 December in Department of Endocrinology Changshou Chinese medicine hospital in Jiangsu Province,and 30 healthy people were screened as control group.Various clinical and biochemical parameters were detected,using enzyme-linked immunosorbent assay for the detection of serum AGEs and sRAGE levels.Results The levels of serum AGEs in newly diagnosed type 2 diabetic patients and control group were (1379.2 ± 431.8) and (1154.5 ±326.4) pg/ml,and there were significant differences between two groups (P＜0.05).The levels of serum sRAGE in newly diagnosed type 2 diabetic patients and control group were (14.6± 9.3)and (19.5 ± 8.9)ng/ml,and there were also significant differences between two groups (P＜0.05).The level of serum AGEs in newly diagnosed type 2 diabetic patients was positive correlation with glycosylated hemoglobin (HbA1c),and the level of serum sRAGE was associated with low density lipoprotein cholesterol (LDL-C) negative correlation.Conclusion The level of serum AGEs increase in newly diagnosed type 2 diabetic patients,and the level of serum sRAGE decrease in newly diagnosed type 2 diabetic patients.