Objective To evaluate the efficacy of the soft-shell technique with domestic materials during the cataract phacoemulsification. Methods Eighty-two eyes of 76 patients with the mature cataract phacoemulsification were divided into 3 groups randomly, including 28 eyes using the soft-shell technique with sodium tvlose and sodium hyaluronate (the domestic group),and 28 eyes using DuoVisc (Viscoat+ProVisc) (the import group), and 26 eyes using sodium hyaluronate (the common group). Results The average naked vision was 0.50 ± 0.22,0.51 ± 0.27,0.27 ± 0.21 respectively on the first day after operation.There was no signiticant difference between the domestic group and the import group (P＞0.05 ), while the first two groups and the common group had significant difference (P ＜ 0.05). The average naked vision was 0.61 ± 0.17,0.63 ± 0.18,0.58 ± 0.18 respectively 7 days after operation. There was no statistical difference among the three groups (P ＞ 0.05 ). The rate of corneal endothelial cells 1 month after operation was 7.1% in the domestic group,7.0% in the import group and 15.9% in the common group. It was clear that the rate in the domestic group and the import group was much lower than that in the common group. Meanwhile, the difference existed statistically between the two groups and the common group (P ＜ 0.01 ). However, the difference between the domestic group and the import group had no statistical significance. Conclusion The soft-shell technique with domestic materials is as safe and effective as that with the import materials in protecting the corneal endothelial cells during the cataract surgery in patients with the mature cataract.

Objective To evaluate the efficacy of zoledronic acid combined with radiotherapy for metastatic bone tumours. Methods Eighty patients with metastatic bone tumour by meta were randomly derided into two groups study group(n=40), and the eantrol group (n=40). The study group received 4 mg zoledronic acid infusion for 15 minutes combined with radiotherapy (DT 30Gy/10f/2w) ,control group was only treated with radiotherapy. The primary effective parameters were pain scores, quality of life, KPS scores and pain relief rates. The vital signs, bi-ochemical and hematological parameters were determined. Results The overall response rates of study group and control group were 97.5% and 72.5% ,respectively(P<0.05). The overall response rate of movement capacity im-provement was 87.5 % in the study group and 65.0% in the control group(P<0.05). There was statistical signifi-cance of QOL and KPS in two groups (P<0.01). An adverse event of mild systemic skeletal pain was recorded after pamidronate infusion and completely reversed after 8 hours. Conclusion Zoledronic acid combined with radiothera-py is effective and safe for treating malignant tumour with mestastatic bone tumours. It is a better way to treat meta-static bone tumors at present.

To investigate the effects of Compound Zhebei Granule (CZBG), a compound traditional Chinese herbal medicine, combined with adriamycin (ADM) on mdr 1 gene expression in tumor xenografts in nude mice.

Objective To investigate the effect of progesterone pretreatment of focal cerebral ischemic and reperfusion injury (fCIRI) and underlying molecular mechanisms.Methods A single intraperitoneal injection of progesterone (8 mg/kg) given 1 h,48 h and 96 h before fCIRI was established in male Sprague-Dawley rats.The number of survival of neurons in hippocampal CA1 region of the ischemiaside,as well as spatial memory function,was detected on days 3-8 after fCIRI.Extracellular-signalregulated kinase 1/2 phosphorylation (p-ERK1/2) and nuclear translocation of p-ERK1/2 in hippocampal CA1 region were examined using western blot.Results The number of survival of neuronal cells was significantly increased in ischemic groups treated with progesterone at 1 h and 48 h pre-fCIRI (164.3 ± 11.0,218.5 ± 9.1 and 142.7 ± 12.1,F =29.4,P ＜ 0.01) compared with fCIRI group treated with vehicle.Likewise,the escape-latency to reach the hidden-platform recorded in day 5 of Morris water maze test was reduced markedly in fCIRI-treatment groups compared with the vehicle group(10.3 ± 11.1,19.2 ±9.6 and 32.4 ± 14.3 ;F =35.8,P ＜0.01).The level of p-ERK1/2 was elevated notably during 24 h to 48 h postprogesterone by western blot,while restored to the baseline at 96 h post-progesterone.Improved nuclear translocation of p-ERK1/2 was observed from 2 h to 48 h post-progesterone.The progesterone receptor antagonist RU486 blocked the exaltation of either intracellular level or nuclear translocation of p-ERK1/2,which was induced by progesterone.Conclusions The pretreatment with progesterone exerts a neuroprotective effect against the ischemia-induced neuronal death and ameliorates the deficits in spatial memory through enhancing the activation of ERK1/2.The neuroprotection derived from pretreatment with progesterone achieves a time window of not less than 48 h,which is progesterone receptor-mediated ERK1/2 signaling pathway-dependent.

A method by using ?-BT-HRP conjugate to localize N-acetylcholinc receptor of neuromuscular junction was described.Thin strips of fresh muscle were incubated with ?-BT-HRP conjugate at a concentration of 1?10-7 M in Tyroid's solution and then reacted with Karnovsky's DAB medium.There were obviously brownish red positive deposits to constitute various vesicular forms seen under a light microscope. Under an electron microscope we can see positive deposits that were localized both on the presynaptic and postsynaptic membra-nes. The binding activity and reliability of a-BT-HRP were discussed.

Objective To investigate the effects of Compound Zhe Bei granule (CZBG) combined with doxorubicin on the expression of GST and Topo - Ⅱ in K562/A02 cell line multidrug resistance tumor xenografts in mice. Methods Tumor xenografts model was established by injecting the multidrug resistance cell line K562/A02 in the axillary flank of BALB/c - nu - nu mice. Drug - comgbination of CZBG intragastric administration and doxorubicin intraperitoneal injection ( i. p. ) was given to the BALB/c - nu nude mice. The tumor xenografts were made into slice after the dissection, and the expression of GST and Topo - Ⅱ in K562/A02 tumor xenografts in mice was investigated by immunohistochemical technique. The integral optical density (IOD) of GST and Topo- lⅡ in K562/A02 tumor xenografts was measured by Image ProPlus 6.0. Results Compared with the single treatment of doxorubicin i. p group,the combination of the doxorubicin and CZBG with dosage classified by three types( high, middle, low) can decrease IOD of GSH and Topo - Ⅱ in K562/A02 tumor xenografts with statistical significance( P

BACKGROUND:Clinical resection of thoracolumbar spinal tumor has a great impact on the spinal stability. Positive internal fixation is required clinicaly in order to maintain the spinal stability. The use of titanium mesh implantation can provide a firm internal fixation folowing resection of tumors. OBJECTIVE:To explore the spinal stability undergoing titanium mesh implantation with internal fixation folowing thoracolumbar tumor resection. METHODS:Twenty-four patients with thoracolumbar tumor admitted at the Central Hospital of Suining City from September 2013 to September 2014 were randomly selected and given tumor resection folowed by titanium mesh implantation with internal fixation. After treatment, patients were folowed up for 1-12 months to observe and analyze the neural functional recovery and spinal stability of the patients. RESULTS AND CONCLUSION:Al the 24 patients successfuly completed the operation treatment, and there was no case of death at the end of folow-up. During the folow-up, patient's clinical symptoms and neural function were significantly relieved, and Frankel classification was significantly improved after treatment. Regular X-ray examination showed that there was no change in the position of titanium mesh and anterior internal fixation system. There was also no titanium mesh colapse, internal fixation fracture and loosening, and the spinal stability was stil excelent. These findings indicate that patients were not changed, and did not appear because the amount of loose, good spinal stability. Resection of thoracolumbar tumors showed that the thoracolumbar spinal reconstruction with titanium mesh implantation combined with internal fixation folowing tumor resection can obtain good clinical effect and excelent biocompatiblity.

Lipopeptides produced by Bacillus subtilis JA antagonized a broad spectrum of fungal pathogens. Crude lipopeptides were extracted with methanol from the precipitate which was obtained by adding 6 mol/L HCl to the cell-free culture broth.The crude extract was run on Diamonsil C_(18)column(5?m,250 mm?4.6 mm) in reverse phase HPLC system to purify the lipopeptides.Inhibitory ability and IC_(50)values of lipopeptides towards various microorganisms were determined by agar diffusion method.The results showed lipopeptides exhibited strong inhibitory activity against some important plant pathogenic fungi,including R.solani and F.oxysporum.The ability of B.subtilis JA to antagonize against the growth of the post-harvest pathogen -B,cinerea was tested in vitro.Spore germination of B.cinerea was strongly inhibited in the presence of JA cell suspension.Furthermore,B.subtilis JA can produce antifungal volatiles which strongly inhibited the spore germination and mycelial growth of B.cinerea.As a biocontrol agent,the synergic effect of lipopeptides and volatiles may play a major role in controlling the pathogens by B.subtilis JA.

Objective To explore the operation indication feasibility,operation technique and clinical effect of complex tibial plateau fractures with semilateral position through combined approaches.Methods From April 2011 to June 2013,data of 25 patients with complex tibial plateau fractures who were treated by open reduction and interal fixation with semilateral position through anterior lateral incision and an inverse L shaped incision were retrospectively analyzed.There were 15 males and 10 females,with an average age of 49.7 years old (range,30 to 70 years old).21 cases were traffic accident injuris and 4 cases were hurt by falling injuries from bicycle.All of the fracture patterns were three pillars of closed fracture of type Ⅵ according to Schatzker classification.The time at surgery was 5-21 days (mean,9.5 days) after injuries.The posterior condylar and medial condylar fractures were dealt with inverse L shaped incision,and fixated with anatomical locking plate and T shaped plate.The lateral condyle fractures were dealt with anterior lateral incision,and fixated with anatomical locking plate.Results Operating time was 150-250 min with an average time of 197.6 min.Intraoperative blood loss was 150-300 ml with an average of 232 ml.25 patients were followed-up,and the average duration of follow-up was 17.8 months (range,12-24 months).Fracture healing time was 16-24 weeks with an average of 19 weeks.At the time of the latest follow-up,X-ray showed all the knee joint had smooth surface,and there was no obvious varus or valgus deformity.One year later,the flexion of the knees achieved 115.2° (range,100°-130°),and the straighten reached 0°.The mean Rasmussen's score of all the patients were 14-18 (average,16.6),and there were excellent in 11 cases and good in 14.Bassed on the KSS score,the mean score was 88.6 (range,66-96) one year after operation.The excellent and good rate was 96％ (24/25).2 patients had fat liquefaction of anterolateral incision wound dehiscence,local skin necrosis,and they got good outcomes after debridement dressing and secondary suture.Conclusion Multi plate fixation is more effective and safty treatment for complex tibial plateau fractures which can be operated completely through fixed half lateral position,and the knee joint is allowed to do early functional exercise,achieving good clinical efficacy and good knee function.

In order to obtain an efficient screening procedure for identification of succinate producing anaerobic strains,a semi-quantitative paper chromatography method was developed. Lactic acid and acetic acid were identified as the main byproducts in the process of succinate production by the high performance liquid chromatography (HPLC).Succinic acid was completely separated from the byproducts of lactic acid and acetic acid in the same broth developed by paper chromatography.The content of succinic acid was calculated by a semi-quantitative method.The results showed that paper chromatography was a simple and cost effective method that could be utilized to screen anaerobic strains producing succinic acid.