Objective To evaluate the effect of wound protector on preventing incisional wound infection following class Ⅲ-Ⅳincision abdominal operation.Methods Patients who had undergone class Ⅲ-Ⅳincision abdominal opera-tion from January 2013 to December 2014 were divided into trial group and control group according to whether they had used wound protector ,incidence of postoperative incisional wound infection between two groups were com-pared.Results A total of 310 patients were monitored,150 cases in trial group,and 160 cases in control group. Incidence of incisional wound infection in trial group was significantly lower than control group (4.00% [n=6]vs 11 .88%[n=19],χ2 =6.48,P <0.05).The average operation time and length of hospital stay in trial group were both shorter than control group ([42.10±3.30]min vs [58.30±4.10]min,P <0.05;[7.00±2.20]d vs [10.00 ±3.50]d ,P <0.05),score of pain assessment of incision in trial group was lower than control group([2.00 ± 1 .70]vs [3.00±1 .80],P <0.05).Conclusion Wound protector can effectively reduce the incidence of incisional wound infection following class Ⅲ-Ⅳincision abdominal operation.

Angioplasty, Balloon, Coronary ; Coronary Restenosis ; prevention & control ; Endothelial Cells ; cytology ; Endothelium ; cytology ; Humans ; Stem Cells ; cytology ; Stents

Objective To investigate the management status of loaner surgical instruments,and evaluate the effect of plan-do-check-act cycle (PDCA)quality control on loaner surgical instrument management.Methods From July 2011 to June 2012,8 965 pieces of loaner surgical instruments before adopting PDCA quality control management was as control group;from July 2012 to June 2013,8 564 pieces of loaner surgical instruments adopting PDCA quality control was as ob-servation group.The defects of loaner surgical instruments during application process and effect of PDCA quality control on loaner surgical instrument management were analyzed.Results There were many problems in checking-tracking,cleaning quality and company personnel of loaner surgical instruments.The qualified rate of observation group was higher than that of control group(99.36% vs 96.27%)(χ2 =194.74,P <0.01).The main causes for unqualification of observation group were unqualified cleaning (n=21 ,38.18%)and incomplete function of instruments(n=8,14.55%);while the main causes for unqualification of control group were the loss of instruments(n=81,24.25%),lack of monitor and record (n=71, 21.26%),unqualified cleaning(n=55,16.47%)and the soaking of package(n=54,16.17%).Conclusion PDCA quality control is an effective method for loaner surgical instruments management,it is helpful for building long-term effective quali-ty control system for loaner surgical instruments,and make loaner surgical instrument management more scientific,system-atic,and standard.

Objective: To compare the mitochondrial content, the relative amount of mtDNA, and mitochondrial functions between the young and aging WI-38 cells, so as to investigate the correlation between mitochondrial and aging. Methods: Human embryonic lung diploid cell line WI-38 was cultured and its viability was assayed by MTT assay; the content of mitochondrial protein was determined using BCA-100 Protein Quantitative Analysis Kit after mitochondria were fractionated by differential centrifugation; mtDNA relative content was measured by a competitive polymerase chain reaction (PCR) method; mitochondrial membrane potential was measured by flow cytometry; and NADH oxidase activity was measured by spectrophotometry. Results: Compared with the young cells, the aging cells had a longer time to form a monolayer, an obviously decreased cell viability and mitochondrial membrane potential (by 50%), and a decreased NADH oxidase activity, with the maximal reaction speed declining from 66.73 nmol/(mg protein · min) to 36. 01 nmol/(mg protein · min). Mitochondrial content in the aging cells([0.78 ± 0.02] mg/ml) was higher than that in the young cells([0.56 ± 0.03] mg/ml). Using 18S rDNA of nuclear as an internal reference, the relative amount of mtDNA in the aging cells (1.557 ± 0.072) was found to be obviously higher than that in the young cells (1.292 ± 0.068). Conclusion: The increase of mitochondrial contents and mtDNA relative amounts in aging cells may be one of the compensatory mechanisms for decreased mitochondrial function, which may provide an evidence for studying the correlation between mitochondrial and aging.

Objective To explore the correlation of the ER and HER-2 expression status with the short-term effect of paclitaxel and epirubicin (TE) chemotherapy advanced breast cancer. Methods Past Immunohistochemical data of 42 advanced breast cancer patients after paclitaxel combined epirubicin treatment were analyzed retrospectively. Patients were divided into four sub-groups: ER +, HER-2-group; ER +, HER-2 + group; ER-, HER-2-group; ER-, HER-2 + group. All affecting patients with complete clinical and pathological data were observed for the factors short-term effect of TE chemotherapy and for chemotherapy adverse. Results The whole 42 patients completed at least two cycles of chemotherapy, and then got efficacy evaluation. Recent response rate of the patients who got TE chemotherapy was 23 cases (54.8%).RR with different metastatic sites (P=0.038) and the number of metastasis (P=0.036) were significantly different. The mainly adverse events of chemotherapy were alopecia for 36 cases (85.7%), myelosuppression for 29 cases (69.1%), Peripheral neuritis for 10 cases (23.9%). ER,HER-2 expression in the Different sub-groups and the RR showed linear distribution (P= 0.027).RR values (83.3%) in patients of ER-, HER-2 + group was significantly higher than that of the ER +, HER-2-group (25.6%) (P=0.045). Conclusion Advanced breast cancer patients with ER-, HER-2 + were more sensitive to TE chemotherapy.ER and HER-2 expression status was a predictor of efficacy of the chemotherapy. It may be helpful to consider ER and HER-2 expression status in choosing reasonable chemotherapy.

Objective To investigate the protective effect and its mechanism of prescription Zu Zhong 1 Hao (a traditional Chinese medical prescription, including Astragalus membranaceus, Atractylodes macrocephala, Arisaema cure Bile, Rhizoma pinelliae, the seed of Prunus persiea , Angelica sinensis , Ligusticum Chuanxiong, Paeonia lactiflora , and Pueraria ,etc) pretreatment on focal cerebral ischemia-reperfusion in rats. Methods Sixty SD rats were randomly divided into sham-operation, ischemia-reperfusion, flunarizine and prescription Zu Zhong 1 Hao low-, medium-and high-dose groups (n=10 in each group). A rat model of focal cerebral ischemia-reperfusion was induced by suture method (ischemia for 3 hours followed by reperfusion for 24 hours). Nitric oxide (NO) was measured by the nitrate reductase method; superoxide dismutase (SOD) activity was assessed by the xanthine oxidase method; maiondialde-hyde (MDA) was determined by the thiobarbiturie acid method; and tumor necrosis factor-a(TNF-α) was detected by the enzyme-linked immunosorbent assay (ELISA) method. Results Prescription Zu Zhong 1 Hao significantly improved neurological deficits in focal cerebral ischemia-reperfusion in rats, reduced the content of NO and MDA in brain tissue, increased SOD activity, and down-regulated the expression of TNF-α. Among them, the role of the high-dose group was more significant (P<0. 01). There were also significant differences between the low-and medium-dose groups and the ischemia-reperfusion group (P<0. 05). Conclusions The pretreatment of prescription Zu Zhong 1 Hao has the protective effect on focal cerebral ischemia-reperfusion injury, and its mechanism may be associated with the decreased content of NO and MDA in brain tissue, increased SOD activity, and down-regulated TNF-α expression.

AIM: To evaluate the preservation of anterior capsule during vitrectomy and lensectomy.ment (RD) and grade C proliferative vitreoretinopathy (PVR)underwent pars plana vitrectomy (PPV) and pars plana lensectomy (PPL) with preservation and polishing of the anterior capsule. Of the 15 eyes, 4 eyes had giant tear, 3 had recurrent rhegmatogenous retinal detachment (RRD), 2 had diabetic retinopathy. Totally 6 eyes had gas and 9 had silicone oil tamponade. The surgeries were evaluated according to the visual acuity (VA) and the postoperative complications during the follow-up of at least 3 months.in all eyes, improved by 3± 3 lines overall. Eight eyes were implanted posterior chamber intraocular lens (PCIOL) successfully at 2-3 months after operation, including 6 having gas and 2 having silicone oil tamponade. No eyes had central anterior capsule opacity, corneal decompensation, puplillary block, retina redetachment or other complications.an intact anterior capsule in eyes with RD and PVR. Preserving the anterior capsule can help preventing intraoperative and postoperative complications of gas or silicone oil, simplify future PCIOL placement, and maintaining a normal iris appearance.

Foodbome viruses are defined to be viruses that can lead to human diseases through food. In accordance with the different origin, foodborne viruses can be divided into two kinds: intestinal viruses and zoonotic viruses. The former include those viruses that can be transmitted to person via fecal-orally route. The latter include those zoonotic viruses that chiefly transmitted to person through livestock and poultry products. This paper expounds foodborne viruses categories, biology nature, epidemiology character, and study circumstance, and clarifies the molecular biological methods and problems on the base of the polymerase chain reactions, and presents the development direction and application perspective of the foodbome viruses study.

The brown slime inside pipeline of the polluted mineral waters well was analyzed. It was confirmed that the brown slime was a biofilm formed mainly by growth of bacteria contaminant, using microscope analysis. After treated with HCl, the brown crystals and mycelioid matter presented in slimes disappeared. It was verified these were metal deposits. The samples produced Prussia blue deposits by dropping K 4Fe(CN) 6 and HCl, which proved that the metal deposits were iron compound. Also it was believed the biofilm was produced by growth of iron bacteria, mixed with deposits of iron compound. The iron bacteria have been isolated from the slimes and cultured in the laboratory. The colony on agar plate also produced Prussia blue deposits after treated with K 4Fe(CN) 6 and HCl. The cells form of pure culture was the same as that in the samples by electronmicroscope analysis. Therefore, It indicated that the bacteria on biofilm inside pipeline were iron bacteria mainly.

In this assay, the reaction kinetics, optimum temperature, pH and various influential factors of ATP microbial rapid detection reagent by bioluminescence were studied. The results showed that it's enough for detection system to have 40 ~ 50?g/mL D-Luciferin. The light production decreased fastest in the first minute of reaction, then began to decay slowly. The optimal reaction temperature was 24℃~25℃and the optimal pH was pH 7.2 -7.4 in the reaction system. In addition, when stored at 4℃for 45h, the dissolved reagent solution could keep its 86% activity. When preserved at 25℃, the enzyme activity decreased less for 1h, and degraded gradually as time went by and only left 53. 5% of its activity after 6. 5h. While stored at 33℃, the enzyme activity decreased quickly with the time and only left 59. 1% after 1. 5h. The result indicated that storage temperature was a very important influential factor to the activity of reagent Meanwhile, different chemical substance such as acid, alkali, salt and surfactants inhibited the ATP bioluminescent reaction. When the concentration of NaCl reached 1. 5g/L, it could inhibit 52. 5% light production. Triton X-100, acid, and alkali also had some effects on the reaction, while CTAB, SDS and TCA would inhibit the bioluminescent reaction seriously.