Primary cytoreductive surgery followed by platinum-based chemotherapy represents the standard treatment for patients with advanced ovarian cancer.But some patients with advanced ovarian cancer still have suboptimal residual disease after the primary debulking surgery.Neoadjuvant chemotherapy has been suggested as an alternative strategy to achieve no residual disease.It is important to find methods to estimate the likelihood that cytoreductive surgery will leave no residual disease.A number of studies have evaluated the use of serologic markers (such as CA125),imaging modalities (such as CT,PETCT,MRI),and laparoscopic surgery to determine which patients are ideal predictors for neoadjuvant chemotherapy.As a new approach of assessment for preoperative evaluation regarding cytoreduction,laparoscopic surgery deserves further research.

Objective To explore the correlation between arterial iodine fraction ( AIF) obtained with energy spectrum CT and Child-Pugh staging of liver cirrhosis.Methods Retrospectively analyzed the Child-Turcotte-Pugh of hospitalized 80 patients diagnosed as liver cirrhosis (15 cases of Child -A,40 cases of Child -B,and 25 cases of Child-C) and CT examination results.HD750 spectral three-stage CT scanning was conducted in all patients.AIF was calculated with energy spectrum analysis software,and the correlation between AIF and Child-Pugh staging of liver cirrhosis was explored.Results There was no statistically significant difference in the iodine content of hepatic artery and portal vein among different groups(t=1.786,P>0.05).The hepatic artery iodine score pair-wise analysis among different groups showed that the differences were statistically significant(F=30.45,P<0.05). The hepatic artery iodine score was highest in Child-Pugh C group,secondary in Child-Pugh B group and lowest in Child-Pugh A group.AIF and Child-Pugh staging of liver cirrhosis was significantly correlated.Conclusion AIF of liver cirrhosis reveals the state of liver function and is correlated with Child-Pugh staging,thus can be adopted as a supplement in clinical Child-Pugh staging.

Objective To analyze the clinical effects of small needle -knife therapy with movement exercise on knee osteoarthritis (KOA).Methods The clinical data collected from all the patients with hospital care and other 60 patients with KOA treated in the outpatient department in People's Hospital of Changzhi from February 201 4 to August 201 4.The patients were divided into needle -knife group and hyaluronan group,30cases in each group.The needle -knife group was given small needle -knife therapy to each patient one or two times.The hyaluronan group was given weekly intra -articular hyaluronan treatment,once a week,5times in total.But all the patients must do the same exercise movement as treatment.The clinical efficacy evaluation went on 6 months to follow up the patients.The evaluation for each patient was made at 0.5,1 st,2nd,4th,and 6th months using the following measures:WOMAC (Western Ontario and McMaster University Osteoarthritis Index)global assessment and SF -36 (short form 36). Make a contrast to the efficacy of both therapies on the osteoarthritis of knee joint from pain -easing and functional recovery.And the results were synthetically analyzed.Results In terms of pain assessment,the outcomes obtained by WOMAC on the two groups was statistically effective in the phase of 1 -6 months (t =-5.952,P <0.001 ),while those by SF -36 showed differences between the first 0.5 month and 6th month (t =3.1 21 ,P <0.001 ,t =4.091 , P =0.01 1 ).In terms of the functional assessment,the figures obtained by the WOMAC manifested that the needle -knife group was significantly superior to the hyaluronan group at the second and sixth months (t =-8.579,P <0.001 ,t =-3.993,P =0.003),and SF -36 also displayed that after treatment,the objects from the two groups per-formed distinctively in the first half,first,and sixth month respectively.(t =6.1 32,P <0.001 ,t =5.063,P =0.0068, t =8.1 09,P =0.003).Conclusion Small needle knife with movement exercise can obviously improve activity -related function of knee joint and relief the pain for the patients with KOA.

To increase detection sensitivity and specificity on hepatitis C virus (HCV) is vital for prevention and controlling of the disease. To establish a more reliable detection method for HCV diagnosis, the full gene fragment of ns3 (non-structural protein of HCV) from recombinant plasmid of J6/JFH1 2a was amplified and then connected into the pET-28a prokaryotic expression vector, and the latter was subsequently transformed into Escherichia coli BL21 (DE3) to have the target protein expression. As a result, a protein with a molecular weight of 72 kDa was obtained and visualized in 10% SDS-PAGE. The purified NS3 protein was used as immunogen to inoculate BALB/c mice and the sera was collected after the fourth immunization. The antibody titer of serum is determined to be about 1:256000 with ELISA. Western blotting and indirect immunofluorescence analysis showed that the mouse polyclonal antibody could react specifically with the native NS3 protein in Huh 7.5.1 cells infected with HCV. These findings may provide basis for further preparation of monoclonal antibodies against NS3 and the development of related detection kit.
Animals ; Antibodies, Viral ; immunology ; Enzyme-Linked Immunosorbent Assay ; Escherichia coli ; Hepacivirus ; Mice ; Mice, Inbred BALB C ; Plasmids ; Viral Nonstructural Proteins ; biosynthesis ; immunology

Expression of platelet-derived growth factor (PDGF)-B mRNA was measured by semi-quantitative RT-PCR in renal cortex of diabetic and control Wistar rats. The expression of PDGF-B mRNA in renal cortex of diabetic rats was 2.5-fold of normal rats, suggesting that PDGF-B seems to play a role in diabetic nephro-pathy.

Objective To investigate the role of IL-6 in the co-cultivation system of porcine hepatocytes with bone marrow mesenchymal stem cells (MSCs) in vitro.Methods Mononuclear cells were isolated from bone marrow aspirate of swines (n = 3) by 1.077 g/ml density gradient centrifugation.MSCs of passage 3 and primary hepatocytes harvested by a two-step in situ collagenase perfusion technique were inoculated in Millicell culture inserts at a seeding ratio of 1:2,and functional changes of heterotypic interactions were characterized.Levels of IL-6,TNF-α,and TGF-α were measured respectively.Results Hepatocyte viability was greater than 95%.Hepatocyte performance levels such as albumin secretion and urea synthesis were all significantly enhanced in co-culture group compared with hepatocyte homo-culture (P＜0.05).The IL-6 level also significantly increased in co-culture group (P ＜ 0.01).A significant decrease of hepatic functions was observed upon neutralization of IL-6 in co-culture.Conclusion MSC-derived IL-6 plays a key role in the up-regulation of hepatocyte functions in this co-culture.

Objective To establish porcine hepatocyte co-culture system with bone marrow mes-enchymal stem cells (MSCs) in vitro for the ideal cell source of bioartificial liver. Methods Mononu-clear cells were isolated from bone marrow aspirate extracted from the anterior superior lilac spine of swines (n=3) by 1.077 g/ml density gradient centrifugation. MSCs of passage 3 and primary hepato-cytes harvested by a two-step in situ collagenase perfusion technique were randomly distributed, and the morphological and functional changes of heterotypic interactions were characterized. Results The purity of the third passage MSCs and primary hepatoeytes was more than 90 % and 99%, respectively.Hepatocyte viability was greater than 95 %. A rapid attachment and self-organization of three-dimen-sional hepatocyte spheroids were encouraged in co-culture. Heterotypic junctions remained similar to that of hepatocytes in vivo. Hepatocyte performance levels such as albumin secretion and urea synthe-sis were all significantly enhanced in co-culture group compared with hepatocyte homo-culture (P<0.05). The best hepatic function levels were achieved on day 2 and moderately decreased in the following co-culture days. Conclusion Co-cultivation of porcine hepatocytes and MSCs may preserve hepatocyte morphology and function, which could contribute to the functional bioartificial liver.

Objective To evaluate the clinical effect of one-stage posterior-anterior approach surgery for patients with cervical fracture and dislocation combined with locked facet.Methods A retrospective review was conducted on 21 cases of cervical dislocation and fracture combined with locked facet treated by one-stage posterior-anterior approach surgery between April 2011 and December 2012.There were 16 males and 5 females at age ranging from 23 to 61 years (mean,38.3 years).Posterior unlocking reduction by partial facetectomy and lateral mass screw fixation was performed,followed by anterior decompression,internal fixation and interbody fusion by titanium meshes.Outpatient or telephone follow-up was performed to evaluate bone fusion and recovery of neurologic function.Results Mean operation time was 140 minutes (130-210 minutes) and mean blood loss was 340 ml (range,150-600 ml).All incisions got primary healing with no operation-correlated complications.Five patients complicated with severe lung infection after surgery and one died of respiratory failure two week later.Titanium meshes achieved bone fusion within 3-9 months (mean,6 months) after surgery.At a mean follow-up of 17 months (range,12-30 months),there was no implant breakage and mesh displacement or collapse.According to the American Spinal Injury Association (ASIA) score,preoperative neurologic deficit restored by mean one grade at final follow-up.Conclusion One-stage posterior-anterior approach surgery is an ideal choice for cervical fracture and dislocation combined with locked facet,for it provides unlocking reduction,canal decompression,and rigid reconstruction of the anterior-posterior column.

Objective To investigate the anti-fibrosis mechanism from effects of difference in iron load levels on activation and apoptosis of hepatic stellate cells(HSCs). Methods According to the difference in iron load levels in HSCs,HSC-T6 cells were divided into four groups:blank control,iron deposition model,50μmol/L desferrioxamine and 25 μmol/L desferrioxamine groups. Quantitative polymerase chain reaction(PCR)was applied for the detection of collagen type Ⅰ and transforming growth factor-β1(TGF-β1)mRNA expressions of HSC-T6 cells. Immunohistochemical assay was used for the detection of α-smooth muscle actin(α-SMA)expression. The method of terminal deoxynucleotidyl transferase(TdT)-mediated dUTP nick end labeling(TUNEL)was used for the examination of apoptosis of HSC-T6 cells. Under electron microscope,the ultrastructures of HSC-T6 cells were observed. Results Compared with the blank control group,despite the TGF-β1 mRNA expression in iron deposition model group was increased,no statistical significant difference was seen(1.594±0.168 vs. 1.477±0.126, P>0.05),whereas collagen type I mRNA expression was significantly enhanced(1.354±0.076 vs. 1.197±0.104, P<0.01). Both 50μmol/L and 25μmol/L desferrioxamine could down-regulate collagen type I and TGF-β1 mRNA expressions,and the action of 50μmol/L desferrioxamine was superior to that of 25μmol/L desferrioxamine(collagen typeⅠmRNA:0.391±0.076 vs. 0.688±0.060,TGF-β1 mRNA:0.421±0.068 vs. 0.714±0.090,both P<0.01). Iron deposition could induce HSCs to expressα-SMA in great amount,while apoptosis could be seen scarcely in iron deposited HSCs. By desferrioxamine therapy,α-SMA expression of HSCs was decreased significantly,but some of the cells underwent apoptosis. Conclusion Different iron load levels inside HSCs can induce activation or apoptosis of the cells,showing that iron plays an important role in regulating the process of HSCs activation and apoptosis and revealing that desferrioxamine possesses the potential action for treatment of liver fibrosis.

of Streptomyces regensis was isolated from soil to produce a novel antibiotic AGPM of a strong biological activity of antitumor The strain was irradiated by UV after treatment with LiCl to give a AGPM yield of 1 87?10 2 mg mL 1 , 2 2 times higher than that of the original strain The optimum UV irradiation time was 30～60 s and the best LiCl concentration was 0 05～0 09 mol/L The fermentation of AGPM was conducted in a 30 L stirred tank, the maximum yield of AGPM using the mutants reached 1 85?10 2 mg mL 1 , while that using the original strain was only 0 85?10 2 mg mL 1