Objective To study the differential expression of matrix metalloproteinase-9(MMP-9) and tissue inhibitors of metalloproteinase-1(TIMP-1) in serum and decidua tissue from missed abortion and normal first trimester pregnancy,and to explore their function in early pregnancy .Methods The expression of MMP-9,TIMP-1 in serum was determined using enzyme-linked immunosorbent assay ( ELISA) ,and in decidua by immunohistochemical method . Results The MMP-9 serum level from missed abortion women was higher than that from normal first trimester preg -nancy women [(154.60 ±28.69)ng/mL vs.(135.75 ±18.35)ng/mL,t=3.50,P=0.001].The TIMP-1 serum level from missed abortion women was lower than that from normal first trimester pregnancy women [(253.03 ± 29.90)ng/mL vs.(323.15 ±33.62) ng/mL,t=9.86,P=0.000].The MMP-9 positive expression rate in decidua tissue was higher in missed abortion women than that in normal first trimester pregnancy women (82.5%vs.42.5%,χ2 =13.65,P=0.000).The TIMP-1 positive expression rate in decidua tissue was lower in missed abortion women than that in normal first trimester pregnancy women (87.5%vs.62.5%,χ2 =6.67,P=0.010).Conclusion The expression of MMP-9 and TIMP-1 in serum and decidua may be assosiated with missed abortion .

Objective To ensure the quality of disinfection and sterilization of the fiberbronchoscope in the sterilesupply center through the implementation of whole life cycle management.Methods Using the historical comparative method,the fiberbronchoscopes managed by the departments were enrolled into a control group from February 2013 to March 2014,and the ones undergoing life-cycle management in the sterile supply center were involved in an observation group from April 2014 to May 2015.The two groups were divided according to the management subject and mode,and compared from the aspects of treatment flow,process quality control and record tracing validity.All the data were input with Excel sheet,andanalyzed statistically with SPSS 17.0.Results The observation group and the control group had the numbers of positive results in internal cavities,positive results in external surface,damaged or irrationally-placed package,invalid data tracing and non-standardized storage being(0,1.11±0.15),(0,1.09±0.20),(1.07±0.13,2.75±0.22),(0.57±0.03,1.53±0.31) and (0.13±0.07,0.95±0.21) respectively,and the differences between the two groups were significant (P＜0.05).The turnover of the fiberbronchoscope was enhanced significantly in the observation group when compared with that in the control group.Conclusion Life cycle management contributes to strengthening quality control of the treatment of polluted fiberbronchoscope,and decreases the incidences for hospital infection.

Objective To study the effects of chronic intra-abdominal hypertension (IAH) on the functions of vital organs. Methods From January 2004 to January 2008, 30 chronic massive ascites related IAH patients were enrolled including 12 colonic cancer cases, 7 pancreatic cancer cases, and 11 gastric cancer cases. Control group included 30 cases of gastrointestinal carcinoma without ascites hence no IAH. The specific malignances in this group were colonic cancer in 15 cases, pancreatic cancer in 8 cases, and gastric cancer in 7 cases. Age, gender and cancer stage were matched between the two groups. Symptoms in digestive, respiratoy and circulatory system and liver and kidney functions were recorded and KPS scores were compared respectively. Results The symptoms of abdominal distention in chronic IAH group and control group were presented respectively by 15 cases(50%) and 5 cases (17%) (P < 0.01). Symptoms of heart-throb or hypotension in the two groups by 10 cases (33%) and 3 cases (10%) respectively(P<0.05). Symptoms of asthma or chest distress in the two groups by 9 cases(30% ) and 1 cases (3%) respectively (P< 0.01). Liver function were abnormal in 16 cases (53%) and 6 cases (20%) respectively (P < 0.01 ), kidney functions were abnormal in 14 cases (47%) and 1 case( 3% ) respectively ( P <0.01 ) . There were 22 cases (73 %) and 7 cases (23 %) respectively ( P < 0.01 ) in the two groups with KIS score being lower than 40. Conclusions Chronic IAH causes malfunctions of vital organs deteriorating patients general status and even leading to abdominal compartment syndrome.

Objective To explore the effect of specific nursing on quality of life of the parents of children with mental retardation (MR). Methods 160 parents of children with MR and 160 parents of normal children were evaluated with WHO Quality Of Life-BREF (WHO-QOL-BREF). The children with MR were divided into observation group (n=80) and control group (n=80). The control group received the traditional nursing care, and the observation group accepted specific nursing care. The scores of WHOQOLBREF were compared. Results The score of WHOQOL-BREF was lower in the MR group than in the normal group (P<0.01). The score decreased with the aggravation of MR (P<0.001). The score of WHOQOL-BREF was higher in the observation group than in the control group (P<0.01). Conclusion Specific nursing should be given to the parents of children with MR, which can promote their quality of life.

Objective To investigate the dynamic changes and clinical significanes of TNF?α,IL?1,IL?10 and HMGB?1 in patients with tuberculosis. Methods Fifty?nine patients with active tuberculosis were enrolled in this study. The patients received the standard chemotherapy and the curative effect of the patient was evaluat ed according to the outcome classification in our country. The peripheral blood serum from the patients during the treatment and 12 healthy volunteers were collected. The concentrations of serum TNF?α,IL?1,IL?10 and HMGB?1 were detected by ELISA tests. Results Significant decreases of the concentrations of serum TNF?α,IL?1 and HMGB?1 were shown in patients from the initial treatment,to retreatment and extra?pulmonary tuberculosis (P<0.01),and the serum IL?10 was increased significantly (P<0.01) along with the chemotherapy and improvement of the disease. At the beginning of the treatment ,the levels of 4 kinds of inflammatory factors had no significant differences between the completed and uncompleted treatment patients (P>0.05). At the end of the treatment , the levels of serum TNF?α,IL?1 and HMGB?1 of the uncompleted treatment group were significantly higher than the normal levels (P<0.01) ,but the level of IL?10 was significantly lower than the normal level (P<0.01). Conclusion The dynamic testing of the inflammatory cytokines contributes to evaluation and judgement of the curative effect and the condition of patients with the active tuberculosis.

Objective: To evaluate the effects of the modified fixed r everse Twin-block appliance(TBA) combined with maxillary protraction appliance( MPA) in the treatment of early Angle Ⅲ skeletal anterior crossbite. Met hods:TBA combined with MPA was used in 15 growing subjects with early An gle Ⅲskeletal malocclusion (group TBA-MPA). Another 15 subjects with the same type of malocclusion were treated by MPA(group MPA). The effects of treatment we re studied by cephalometric measurments.Results:3-5 months afte r treatment SNB, B-Vert T, Po-Vert T,NPo-FH,Co-Po and 1-NB in group 1 were decreased more than those in group 2 (P0.05).Conclusion:Angle Ⅲ skeletal ante rior crossbite can be corrected successfully with reverse TBA combined with maxi llary protraction appliance by mandible retrusion and maxilla forward growth.

Objective To discuss the content changes of motilin (MTL) and gastrin (GAS) in acute liver failure (ALF) rats and their association with hepatic gastrointestinal dysfunction.Methods We duplicated the ALF rats model with thioacetamide,and observed their general states of health and the liver biochemical indicators.The contents of MTL and GAS in their blood and the gastrointestinal mucosa were determined with the radio immunoassay.Results ① The contents of MTL and GAS in blood and gastric mucosa of the ALF rats obviously elevated (P

Objective Through the optical microscopic observation to investigate the pathological influence of topical oxygen therapy on wounds of rats' muscles in hot and humid environment. Method The rat traumatic models were established. Twenty-four rats were randomly divided into four groups, including normal envi-ronment comparison group (NEC group, n=6), normal environment oxygen therapy group (NEO group, n=6). hot and humid environment comparison group (HHE group, n=6), hot and humid environment oxygen therapy group (HHO group, n=6).Then all rats were sampled to observe the changes of rats' muscle under optical microscope. Results Pathologic histology of muscle cells were obviously changed in HHE group. In these rats. disorganized myofibrillae with some loss of myofilaments. The damage of the muscle fibers in HHO group were better than that in HHE group. The damage of muscle ceils in NEC group were slighter than that in HHE group, the muscle of rats in NEO group are all normal. Conclusion In hot and humid en-vironment pathologic histology changes of wounds were serious, topical oxygen therapy could relieve muscle tissue ultrastructures change.

Objective This study was designed to explore the effect of hyperglycemia on the expression of Toll-like receptor 4 (TLR4 ) in renal tubular epithelial cells and its significance in diabetic nephropathy. Methods In vitro cultured renal tubular epithelial cells ( NRK-52E) were divided into LG group (cultured in 5mmol / L glucose DMEM) and HC group (cultured in 25mmol / L glucose DMEM). Cells were harvested at different time points. Immunohistochemistry, Rt-PCR, Western Blot were used to detect TLR4 protein and mRNA expression, and the levels of IL-6 and TNF-α from the cell culture supernatant were determined by EL1SA assay. Results After 6 hours, there was increased expression TLR4 mRNA in HC group, which appeared to be maintained for 24 hours and began to decrease after 48 hours ( P < 0.05). TLR4 protein expression increased in HC group after 24 hours, and increased even further after 48 hours. Compared with LG groups, the difference had statistical significance ( P <0.05). In HG group, IL-6 and TNF-α expression in the supernatant from the NRK-52E culture were significantly increased ( P < 0.05) , and the expression of IL-6 and TNF-α was positive correlated with the expression of TLR4 protein ( r =0.799,0.820). Conclusion High glucose triggers an increase in expression of TLR4 in NRK-52E cells, itself leading to an increase in expression of inflammatory factors such as TNF-α and IL-6. In this way, TLR4 participates in the progress of diabetic nephropathy.

Objective To investigate the effect of high glucose and losartan on cell proliferation and cyelooxygenase-2 (COX2) expression in normal human mesangial cells (NHMCs), and to examine the effect of losartan on COX2 and transforming growth factor-betal (TGF-β1) expression in a model of diabetic nephropathy (DN). Methods NHMCs were cultured in vitro in high glucose media with or without losartan. NHMCs proliferation and COX2 expression were determined by WST-1, Western blot,and RT-PCR. The rat model of DN was produced by injections of streptozocin (STZ). After the treatment with losartan for 4 weeks, glomerular hypertrophy, urinary thromboxane B2(TXB2) and 24 h urinary pro-tein counts were measured,and COX2 and TGF-β1 expressions were investigated using immunohistochem-ical techniques and RT-PCR. Results Losartan dose-dependently inhibited the proliferation of NHMCs in response to high glucose. Losartan also decreased COX2 expression in NHMCs at high or low glucose concentrations. In vivo experiments found kidney weight/body weight (KW/BW), urinary TXB2 and 24 hurinary protein counts increased significantly in the DN group. Losartan reduced KW/BW, urinary TXB2,and 24 h urinary protein counts and significantly suppressed the over-expression of COX2 and TGF-β1.Conclusion Losartan reduces COX2 expression in NHMCs, especially at high glucose concentrations.Losartan could suppress the expression of COX2 and TGF-β1 in the kidney of DN rats and attenuate the renal lesions caused by DN.