Background Proliferative vitreoretinopathy(PVR) is a tissue repair prevention and treatment of PVR in clinic.Natural delayed release microballoons are therefore becoming a hot spot for its easy manipulation,large lading dose and long acting duration.Objective This study was to evaluate the effect of 5-fluorouracil natural delayed release microballoons on the prevention of PVR.Methods The lymphocytes were collected from clean pigment rabbit to prepare the 8×107/ml cell suspension with complete culture fluid.PVR models were established in 45 healthy pigment rabbits by intravitreal injection of lymphocyte suspension.The animals were randomly divided into 3 groups and 15 rabbits for each.0.1ml normal saline,10g/L or 20g/L 5-fluorouracil natural delayed release microballoons were injected into vitreous cavity respectively.PVR was graded on Fastenberg's method under the slit lamp in 1,2,4,8 weeks.The animals were sacrificed and retinas were obtained for the histopathological and ultrastructural examination in the eighth week after administration of drug.Results The numbers of eyes with different grades of PVR were significantly different among 3 groups in 1 week,2,4,8 weeks(P＜0.05).The eye numbers with PVR was significant less in 20g/L Fu group than those of 10g/L Fu group and normal saline group(P＜0.05).There was statistical difference in PVR ranking among these 3 groups in 8 weeks after injection of drug(H=46.795,P＜0.05).The morphology and ultrastructure of retinas under the light microscope and transmission electron microscope were near normal in all of the three groups.Conclusion Implantation of 5-fluorouracil natural delayed release microballoons into vitreous cavity is effective and safe in preventing PVR in experimental model,and the therapeutic effect of microballoons with 20g/L 5-Fu is better.

OBJECTIVETo explore the clinical effects of Mobi-C cervical artificial disc replacement (CADR) and anterior cervical decompression and fusion (ACDF) in treating single cervical disc herniation.

METHODSFrom June 2009 to June 2012, the clinical data of 27 patients with single cervical disc herniation were retrospectively analyzed. There were 18 males and 9 females, aged from 30 to 62 years old with an average of 46.7 years. Of them, 12 patients were treated with CADR (CADR group) and 15 patients with ACDF (ACDF group). All patients had pain and numbness in neck, shoulder and upper limbs, and courses of disease was from 1 to 13 months with an average of 2.4 months. The data of clinical evaluation and questionnaire survey about quality of life were collected before operation, postoperative at 1 week and final follow-up. Odom criterion was used to evaluate postoperative effect. Visual analogue scale (VAS) was used to record pain levels. Neck disability index (NDI) and health questionnaire SF-36 were used to assess the quality of life.

RESULTSNo complications about nerve and blood vessel were found and the patients were followed up from 6 to 30 months, with an average of 16 months. One week after operation, 10 cases got excellent results and 2 good in CADR group; 5 cases got excellent results and 10 good in ACDF group; there was significant difference between two groups (P<0.05). At final follow-up, 10 cases got excellent results and 2 good in CADR group; 12 cases got excellent results and 3 good in ACDF group; there was no significant difference between two groups (P> 0.05). Pain of upper limbs had obviously relieved between two groups at 1 week after operation and final follow-up (P<0.05). VAS of neck and NDI in CADR group had decreased respectively from preoperative 3.58±0.79, 23.42±6.36 to 0.58±0.51, 5.42±1.68 at 1 week after operation (P<0.05); but the index in ACDF group was no obvious at 1 week after operation. At final follow-up, VAS of neck and NDI and SF-36 score were obviously improved than preoperation (P<0.05) between two groups.

CONCLUSIONMobi-C CADR retains the movement unit in the decompression segment and can quickly recover normal action for patients. Using CADR method has a good curative effect in the early phase, and the clinical effect is reliable, may improve the quality of life.

Adult ; Decompression, Surgical ; methods ; Female ; Humans ; Intervertebral Disc Displacement ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Spinal Fusion ; methods ; Total Disc Replacement ; methods ; Visual Analog Scale

Objective To investigate the expression and significance of B lymphocyte stimulator (Blys) and its receptor BAFF (BAFF-R) in peripheral blood mononuclear cells (PBMCs) from patients with systemic lupus erythematosus (SLE). Methods The expression of Blys and BAFF-R was measured by flow cytometry in 90 pa-tients with SLE,which was compared with that of 45 healthy controls. The relationships between the expression of Blys, BAFF-R and other laboratory parameters as well as disease activity were analyzed. Results The expression of Blys and BAFF-R in PBMCs from patients with SLE was significantly elevated compared to healthy controls (P <0.001), so did the active group (P < 0.001) and inactive group (P < 0.001 and P < 0.01). The expression of Blys in PBMCs from active SLE patients was higher than that of inactive patients (P <0.05). However,there was no statisti-cal difference of BAFF-R between the two groups. The expression of Blys in PBMCs was positively related to SLEDAI (r =0.728,P <0.001) ,IgG and IgM(r=0.691,P<0.001 and r =0.453,P<0.01) ,but negatively related to C3 and CA (r = -0.510, P < 0.001 and r = -0.312, P < 0.05). The expression of Blys in dsDNA positive group was higher than those of dsDNA negative group (P < 0.01). The expression of Blys and BAFF-R in Cl qAb positive group was higher than those of ClqAb negative group as well (P <0.01). Conclusion The expression of Blys and its receptor BAFF-R in PBMCs from SLE is elevated ,which may reflect the disease activity and is related to the pro-duction of autoantibody. They might be involved in the pathogenesis of SLE.

Objective To evaluate the clinical performance of IPS e.max Press all-ceramic crowns and three-unit fixed partial dentures(FPDs)and to investigate the periodontal response to the presence of the restorations.Methods According to the inclusion criteria,19 patients with dental defects or singletooth loss were recruited,including 25 crowns and 6 all-ceramic FPDs.The modified United States Public Health Service criteria were used for follow-up evaluation.Plaque index(PI)and sulcus bleeding index (SBI)were recorded for the ceramic restorations and the control teeth.Results No crown and FPD fractures were observed during the evaluation period.There was no statistically significant difference regarding PLI and SBI scores between restorative teeth and the control teeth.And the difference between different recalled times of PLI and SBI of the restorations was no statistically significant.Conclusion IPS e.max Press crowns and three-unit fixed partial dentures exhibit a satisfactory clinical performance.

Objective To know the microcystins pollution caused by cyanobactcria bloom in two drinking water sources in Ningbo city.Methods Water samples were collected at four sampling sites in Yaojiang River and three sampling sites in Miehu reservoir from 20 July,2007 to 31 August,2007.The algae in these water samples were classified and counted,and Microcystin-LR (MC-LR),MC-RR were determined by UPLC-MS-MS.Results The Cyanobacteria cell concentration in Yaojiang River and Meihu reservoir ranged from 0.8?10~6 to 6.7?10~7,and from 1.21?10~7 to 9.928?10~8 cells/L respectively.The MC-LR and MC-RR in Yaojiang River weren't detected,and neither was the MC-RR in MeiHu reservoir.However,the MC-LR was detected at sometimes,and the maximum concentration of MC-LR was 0.84?g/L.Conclusion There is no microcystins pollution in Yaojiang River,but there existed MC-LR pollution in MeiHu Reservoir,and the MC-LR concentration in it was below national standard limit of 1.0?g/L after the treatment of controlling alage and microsystins.

This study was aimed to systematically appraise the effectiveness and safety of traditional Chinese medicine (TCM) decoction in combination with bisphosphonates in treatment of bone metastasis of malignant tumors. Related literatures were searched in the PubMed, Embase, CBM, CNKI and Cochrane Databases. The endpoints included cancer pain, activity of daily living, sclerotin reparation, KPS and adverse events. The Stata 11.0 software was used in the statistical analysis. The results showed that a total of 19 articles involving 1080 patients were included. It showed that TCM in combination with bisphosphonates can significantly relieve pain (RR=0.8079,95%CI =0.754-0.85,P <0.001), improve the activity of daily living (RR =0.787,95%CI =0.69-0.897,P <0.001), promote sclerotin reparation (RR =0.71,95%CI =0.52-0.96,P =0.026), and improve KPS (RR=0.7268,95%CI =0.61-0.85,0.58-0.81,P <0.001). It was concluded that TCM decoction in combination with bisphosphonates can significantly improve its therapeutic effect as well as improve the patients’ quality of life.

Objective To evaluate the eradication rate and long-term therapeutic effect of a triple therapy consisted of cla-(rithromycin) (CLA), amoxicillin (AMO)and omeperazole on Hp infection,and explore the alternative therapeutic programs and their effects after first therapeutic failure.Methods A total of 92 children with Hp infection were divided into two groups: 70 children were given the triple therapy for one week (CLA group);Twenty-two children were given another triple therapy composed of metronida-(zoole) (MET), AMO and omeperazole for two weeks (MET group).All of the children were followed up for 1-30 months after the therapies ended.Children of the two groups who were therapeutic failure were given retreatment as follows.CLA triple therapy were given for one week to the children who were failure after MET triple therapy;increased doses of CLA with longer treatment course was given to the children who were failure after CLA triple therapy . A tetra therapy consisted of colloidal bismuth subcitrate (CBS), furazolidone (FUR) ,omeperazole and AMO was given to children in whom the retreatment failed.Results The Hp eradication rate of CLA group was 91.4%(64/70),and the Hp eradication rate of MET group was 72.7%(16/22).There was significant difference between eradication rate of the two groups(?~2=5.16 P

In this study, a rapid and sensitive analytical method was developed for the determination of 10 major compounds (procyanidin B1, catechin, procyanidin B2, rutin, isoquercitrin, kaempferol-3-O-rutinoside, astragalin, quercitrin, quercetin, and kaempferol) in Tetrastigma hemsleyanum by using ultra-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UPLC-MS/MS) in multiple-reaction monitoring (MRM) mode. UPLC-MS/MS assay with negative ion mode was performed on a Waters CORTECS C18 (2.1 mm x 100 mm, 1.6 μm) with the mobile phase consisting of acetonitrile (A) and 0.1% aqueous formic acid (B) in gradient elution at a flow rate of 0.25 mL · min(-1) and the column temperature was set at 45 °C. Under the optimized chromatographic conditions, good separation for 10 target compounds were obtained including chiral isomer procyanidins B1 and B2 were completely separated within 8.5 min. Satisfactory linearity was achieved with wide linear range and fine determination coefficient (r > 0.996 6), the overall recoveries were ranged from 95.44%-110.40% with the RSD ranging from 2.37%-8.69%. It is the first report about simultaneous analysis of 10 major flavonoids components in Tetrastigma hemsleyanum by using UPLC-MS/MS method, which affords highly sensitive, specific, speedy and efficient method for quality control of Tetrastigma hemsleyanum
Acetonitriles ; Chromatography, High Pressure Liquid ; Flavonoids ; chemistry ; Kaempferols ; Quercetin ; analogs & derivatives ; Rutin ; Tandem Mass Spectrometry ; Vitaceae ; chemistry

Adolescent ; Brain Neoplasms ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Humans ; Melanoma ; metabolism ; pathology ; Melanoma-Specific Antigens ; metabolism ; Neurilemmoma ; metabolism ; pathology ; S100 Proteins ; metabolism ; Vimentin ; metabolism

OBJECTIVE Oxidative sress is one of the key factor responsible for occurrence and development of hepatic fibrosis, a common consequence of chronic liver injury of multiple etiology. Nuclear factor erythroid 2-related factor 2 (Nrf2) serves as a major regulator of a celular defense system against oxidative stress. Xiaochaihutang (XCHT), a compound of seven botanical extracts used for liver diseases traditionally in East Asia. However, few studies have investigated its anti-hepatic fibrosis effects and pathophysiological mechanism of action. The present study was designed to confirm the anti-hepatic fibrosis effects and explore its potential mechanism of action by investigating the intervention of Nrf2 pathway. METHODS Liver fibrosis was induced by repeated injection of Carbon tetrachloride (CCl4) over a period of 9 weeks. Starting from the 6th week, the animals in treatment groups were given the appropriate dose of XCHT granules and silybin. Biochemical parameters, histological changes of the liver and alpha-smooth muscle actin (α-SMA) were determined. The expressions of Nrf2, Keap1, Nqo1, HO-1, Gclc and Gclm were assessed by RT-PCR and Western blot. RESULTS CCl4 caused a significant fibrosis damage in the rat liver and the liver functions and fibrosis degree were significantly improved by XCHT (5 g·kg- 1 and 10 g·kg- 1). XCHT (5 g·kg- 1 and 10 g·kg- 1) treatment significantly decreased the number of cells labeled with α-SMA antibodies. Moreover, XCHT (5 g·kg-1 and 10 g·kg-1) significantly increase Nqo1, HO-1, Gclc and Gclm expressions in the liver. CONCLUSION These studies establish XCHT is a potentially useful therapeutic agent for treatment of hepatic fibrosis and it might be via regulation of Nrf2 pathway in rats against oxidative stress, making further efforts to inhibiting the activated HSCs. Activation or up-regulation of Nrf2 pathway may be an alternative treatment strategy for liver fibrosis.