OBJECTIVETo explore the change in mobility of staphylococcus and its drug resistance etiology investigation and clinical treatment.

METHODSThe routine biochemical identification was used for staphylococcus differentiation. Minimal inhibitory concentrations was used for drug-resistance determination. Some drug-resistance determination were detected by K-B method. The inducible resistance of erythromycin to clindamycin was checked by D-test.

RESULTSStaphylococcus was in the first place in the hospital infection. The rates of methicillin-resistant staphylococcus were 54.1%. The drug-resistance rates of staphylococcus to penicillin, oxacillin, erythromycin, tetracycline, ciprofloxacin, gentamicin, clindamycin, SMZCO, chloramphenicol, vancomycin, teicoplanin antibacterials were 93.2%, 54.1%, 85.1%, 56.7%, 45.9%, 48.6%, 58.1%. 45.9%, 31.1%, 0%, 0%. D-test positive rate was 37.9%.

CONCLUSIONSThe results are helpful in study of pathogenic bacteria and drug resistance characteristics in staphylococcus infection.

Anti-Bacterial Agents ; pharmacology ; Cross Infection ; microbiology ; Drug Resistance, Multiple, Bacterial ; Humans ; Reconstructive Surgical Procedures ; Staphylococcal Infections ; microbiology ; Staphylococcus ; drug effects ; isolation & purification

OBJECTIVESTo measure the plasma levels of urokinase plasminogen activator (uPA), urokinase plasminogen activator receptor (uPAR) and plasminogen activator inhibitor-1 (PAI-1), and study the relationship between the plasma levels of uPA, PAI-1 and the serum albumin (Alb), collagen type IV (CIV), the serum hyaluronic acid (HA), prothrombin time (PT) and prothrombin activity (PTA) in patients with different stages of liver cirrhosis following chronic hepatitis B.

METHODS72 cases with liver cirrhosis of different stages were classified according to child-pugh's categories A, B, C, in which there were 23 cases in child A, 29 cases in child B, and 20 cases in child C. The plasma levels of uPA, uPAR, PAI-1 and the serum levels of HA, CIV were detected by ELISA. The serum PCIII concentration was determined by radioimmunoassay.

RESULTSWith the progression of hepatic fibrosis, the plasma levels of uPA, uPAR and PAI-1 were (1.36+/-0.43) microg/L, (3.03+/-1.48) microg/L and (24.09+/-7.14) microg/L respectively in group A, (1.79+/-0.62) microg/L, (4.80+/-2.22) microg/L and (41.40+/-17.52) microg/L respectively in group B. The highest levels were in child C, whose levels were (1.88+/-0.64) microg/L, (4.82+/-2.02) microg/L and (52.60+/-16.87) microg/L respectively, compared with group A and group B, t value were from 2.81 to 7.38, all of P value were less than 0.01. There was negative correlation between the plasma levels of uPA and the serum PCIII (r=-0.4785, P<0.05) in child A, but, positive correlation between the plasma PAI-1 and the serum HA (r=0.5447, P<0.01) in child C. The value of PAI-1/uPA was significantly decreased in child A, but increased in child B and child C.

CONCLUSIONIn the late of liver cirrhosis, increased PAI-1 together with uPA, uPAR are associated with overall inhibition of matrix degradation. The plasma levels of uPA and PAI-1 were correlation to the progression of liver cirrhosis.

Female ; Hepatitis B, Chronic ; complications ; Humans ; Liver Cirrhosis ; blood ; Male ; Middle Aged ; Plasminogen Activator Inhibitor 1 ; blood ; Receptors, Cell Surface ; blood ; Receptors, Urokinase Plasminogen Activator ; Urokinase-Type Plasminogen Activator ; blood

OBJECTIVETo measure the plasma levels of transforming growth factor beta1 (TGFbeta1), the protein expression of alpha-SMA in hepatic stellate cells and urokinase plasminogen activator (uPA) and plasminogen activator inhibitor-1 (PAI-1), and study on the relationships between the plasma levels of TGFbeta1, the protein expression and the serum hyaluronic acid (HA) in patients with different grades of hepatic fibrosis.

METHODSThirty seven cases with hepatic fibrosis of different grades were classified according to HE and VG staining categories from 0 to 4, in which there were 8 cases in grade 1, 9 cases in grade 2, 7 cases in grade 3, 13 cases in grade 4. The plasma levels of TGFbeta1 and the serum levels of HA were detected by ELISA. The protein expressions of a-SMA, uPA and PAI-1 in fibrotic liver tissue were observed by immunohistochemistry.

RESULTSWith the progression of hepatic fibrosis, the plasma levels of TGFbeta1 and the protein expression of a-SMA, uPA and PAI-1 in fibrotic liver tissue were increased. In grade 3 and 4, the plasma levels of TGFbeta and the protein expression of a-SMA and PAI-1 in fibrotic liver tissue were significantly increased, but the protein expression of uPA in cirrhosis liver tissue did not increased.

CONCLUSIONTGFbeta1, a-SMA, uPA and PAI-1 play an important role in the progression of hepatic fibrosis. Inhibiting the early activation of latent TGFbeta1 or increasing uPA and inhibiting PAI-1 over express may contribute to matrix degradation and retard the progression of hepatic fibrosis.

Actins ; blood ; Adult ; Aged ; Female ; Hepatitis B, Chronic ; blood ; complications ; Humans ; Liver Cirrhosis ; blood ; etiology ; Male ; Middle Aged ; Plasminogen Activator Inhibitor 1 ; blood ; Transforming Growth Factor beta ; blood ; Transforming Growth Factor beta1 ; Urokinase-Type Plasminogen Activator ; blood

OBJECTIVETo investigate the effect of urokinase on hepatic fibrogenesis in rats.

METHODSHepatic fibrosis was induced in rats by complex pathogenic factors including subcutaneous injections of carbon tetrachloride, alcohol and cholesterol feeding. Animals were randomly divided into 3 groups: normal control group, hepatic fibrosis group (complex pathogenic factors for 6 weeks), UK prevention group (complex pathogenic factors+UK for 6 weeks). The animals were sacrificed at the end of week 6. The expression of alpha-SMA, uPA, PAI-1, TGFb1, TIMP-1, collagen type I and type III proteins in hepatic fibrosis tissue was detected by immunohistochemistry, the expression of PAI-1 and TGFb1 mRNA in the hepatic fibrosis tissue was quantified by real time RT-PCR. The serum levels of hyaluronicacid (HA), alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin (TBil) and the content of liver hydroxyproline (Hyp) were detected using ELISA kits.

RESULTSThe serum ALT, AST, TBil, HA and the content of liver Hyp were (46.66+/-6.30) U/L, (126.26+/-31.65) U/L, (31.11+/-4.20) micromol/L, (109.70+/-18.81) microg/L and (0.98+/-0.09) mg/(g liver), respectively, in UK prevention group, which were significantly lower than those [(101.57+/-11.97) U/L, (205.89+/-56.26) U/L, (67.75+/-2.75) micromol/L, (184.43+/-32.36) microg/L and (1.65+/-0.16) mg/(g liver), respectively] in hepatic fibrosis group (q = 3.3801-20.0061, P < 0.01). The levels of a-SMA, collagen type I, type III, TIMP-1, PAI-1, TGFb1 proteins were (299.27+/-37.36), (210.05+/-27.17), (192.94+/-24.48), (213.70+/-32.21), (204.25+/-17.92), (205.97+/-23.81), respectively, in UK prevention group, which were significantly lower than those [(418.83+/-30.21), (323.77+/-21.53), (302.37+/-31.43), (376.63+/-25.19), (313.53+/-26.67) and (327.42+/-36.75), respectively] in hepatic fibrosis group. The level of uPA protein was increased, and the expression of PAI-1, TGFb1 mRNA in hepatic fibrosis tissue was decreased in UK prevention group.

CONCLUSIONIn the early stage of hepatic fibrogenesis, urokinase can attenuate the progression of rat hepatic fibrosis via upregulation of uPA, downregulation of TGFb1, and inhibition of HSC activation.

Actins ; metabolism ; Animals ; Disease Models, Animal ; Hydroxyproline ; metabolism ; Liver ; drug effects ; metabolism ; pathology ; Liver Cirrhosis, Experimental ; chemically induced ; metabolism ; pathology ; prevention & control ; Liver Function Tests ; Male ; Plasminogen Activator Inhibitor 1 ; metabolism ; RNA, Messenger ; genetics ; metabolism ; Random Allocation ; Rats ; Rats, Wistar ; Tissue Inhibitor of Metalloproteinase-1 ; genetics ; metabolism ; Transforming Growth Factor beta1 ; genetics ; metabolism ; Urokinase-Type Plasminogen Activator ; pharmacology

Objective To explore the protective effects and mechanism of quercetin against the oxidative damage to renal cell.Methods Using the model of renal cell lines HK-2,hydrogen peroxide (H2 O2 )induced oxidative damage on renal cells.On the basis of the effects of quercetin on HK-2 cells viability observed by CCK8,the alteration of cell signaling pathway after treating with quercetin was detected by immunoblotting.The glutathione (GSH)in the cell was also detected. Results It was found that H2 O2 can induce the oxidative damage in HK2 cells.Compared to control group,the cell viability decreased to 34. 9%.While pretreated with quercetin (10 μM~40 μM),the viability was between 40% and 70%.Quercetin decreased reactive oxygen species (ROS)to 1 10%-130% in HK2 cells which were induced by H2 O2 to 153%.Additionally,quercetin increased the content of anti-oxidant enzyme such as GPX1,SOD2 and GSH.Moreover, quercetin can promote the degradation of p-AMPK and LC3 and decrease p-mTOR,as well as inhibit the activation of BAX and caspase 3.Conclusion Quercetin has a protective effect on renal cell induced by oxidative damage,and the mechanism may be related to antioxidant effects and promoting autophagy.

Blood oxygen saturation is one of the important index of clinical care. In this paper, a pulse oximetry method based on android smartphone was proposed, by which oxygen saturation could be monitored anywhere. The non-intrusive reflective optical measuring principle was used in the new method. After the sampled images were analyzed and processed, value of blood oxygen saturation was calculated in real time. The experimental results show that the method has high reliability and consistency.

Objective To estimate the size of men who have sex with men (MSM) in Chongqing municipality.Methods A community based investigation was conducted in Chongqing to estimate the number of personal social network (c value) in the general population through the network scale-up method (NSUM).All the participants were selected by multistage sampling randomly.Factors as c value,the number of acquaintance of MSM and its respective coefficient were used to estimate and adjust the size of MSM in Chongqing.Results The average size of personal social network for Chongqing residents was 330,with differences among place(P＜0.001),sex (P＜0.0001),age (P＜0.0001),education level (P＜0.0001).The size of social network changed into 310 after the adjustment on demography,back estimation and elimination of the outliers.The estimated population size for MSM was 16 767 after the adjustment according to the respective levels,with 95％CI from 14 602 to 18 932,which accounted for 0.21％ of the total number of males,aged from 15 to 49 in Chongqing municipality.Conclusion NSUM was a new method for estimation of population size,which seemed worthy in promoting the practice of NSUM for its efficiency.

OBJECTIVETo observe the anti-renal fibrosis effect of Paidu Baoshen Pill (PBP) on 5/6 nephrectomized rats and to explore its mechanism.

METHODSTotally 50 SD male healthy rats were randomly divided into the normal control group (n = 10), the sham-operation group (n = 10), and the nephrectomy model group (n = 30) according to the proportion of 1:1:3. Rats in the sham-operation group had their renal capsule isolated without nephrectomy. Rats in the nephrectomy model group had their kidneys 5/6 nephrectomized. Then 24 h urine was collected and 24 h urinary protein (24 h UP) detected. Serum blood urea nitrogen (BUN) and serum creatitine (SCr) were also tested. According to the SCr level 30 rats of the model group were further randomly divided into the model group, the PBP group, and the Niaoduqing Granule (NG) group, 10 in each group. Rats in the PBP group and the NG group were respectively administered with PBP (at the daily dose of 1.0 g/kg) and NG (at the daily dose of 3.33 g/kg) by gastrogavage (they were dissolved in distilled water). At the same time, 2 mL distilled water was administered by gastrogavage to rats in the normal control group, the sham-operation group, and the nephrectomy model group, once daily for 4 successive weeks. Mental conditions, activities, hair color, shape of stool, and the body weight were observed during administration. After 4 weeks, urine was collected to detect 24 h UP. Blood was sampled to detect SCr, BUN, transforming growth factor β1 (TGF-β1), type III procollagen (PC III), collagen type IV (Col IV), laminin (LN), and fibronectin (FN). After rats were killed, their left remnant renal tissues were collected for pathological examinations. The protein expression quantity of TGF-β1 and FN was detected by immunohistochemical method. mRNA expression levels of TGF-β1 and FN were detected using real time fluorescent quantitative PCR.

RESULTSThere was no statistical difference in the above indices between the normal control group and the sham-operation group (P > 0.05). Compared with the sham-operation group, rats' general condition was poorer in the model group, their body weight grew slower, and 24 h UP increased; serum levels of BUN, SCr, TGF-β1, PC III, Col IV, LN, and FN increased; the residual renal pathological lesion was serious; expression levels of TGF-β1, TGF-β1, mRNA, FN, and FN mRNA increased in the renal tissue (all P < 0.01). Compared with the model group, rats' general condition was better, their body weight grew faster, 24 h UP reduced (P < 0.05), blood levels of BUN and SCr decreased significantly (P < 0.01), serum levels of TGF-β1, PC III, CoL IV, LN, and FN decreased (P < 0.05, P < 0.01); the residual renal pathological lesion was attenuated in the PBP group and the NG group; expression levels of TGF-β1, TGF-β1, mRNA, FN, and FN mRNA decreased (P < 0.01). Compared with the NG group, blood levels of SCr and FN, and expression levels of FN and FN mRNA decreased more in the PBP group (P < 0.05).

CONCLUSIONSPBP had the effect of anti-renal fibro- sis in 5/6 nephrectomized rats. Down-regulating expression levels of TGF-β1, and FN from gene transcription and protein translation levels might be one of its mechanisms.

Animals ; Blood Urea Nitrogen ; Collagen Type IV ; Drugs, Chinese Herbal ; therapeutic use ; Fibronectins ; Kidney ; Kidney Diseases ; drug therapy ; Laminin ; Male ; Nephrectomy ; Rats ; Transforming Growth Factor beta1

OBJECTIVEto evaluate the risk factors for postoperative pulmonary complications following transoral operation for the atlanta-axis disorders.

METHODStotal 104 cases were collected from January 2005 to June 2009. Twelve variables among patients with PPCs and without PPCs were analyzed by logistic regression analysis.

RESULTSthe incidence of postoperative pulmonary complications following transoral operation for the atlanta-axis disorders was 22.1% (23/104). There was significantly difference in 9 variables between patients with PPCs and without PPCs, and 5 variables as serum albumin < 35 g/L (OR = 15.185, P = 0.003), tracheotomy (OR = 32.254, P = 0.015), Frankle grade (OR = 8.866, P = 0.001), the duration of intubation > 4 d (OR = 7.934, P = 0.002), the duration of surgery > 6 h (OR = 16.889, P = 0.006) were found to be significantly related to the development to postoperative pulmonary complications by multivariate analysis.

CONCLUSIONserum albumin < 35 g/L, tracheotomy, Frankle grade, the duration of intubation > 4 d, the duration of surgery > 6 h are the risk factors for postoperative pulmonary complications following transoral operation for the atlanta-axis disorders.

Adolescent ; Adult ; Aged ; Axis, Cervical Vertebra ; surgery ; Cervical Atlas ; surgery ; Female ; Humans ; Logistic Models ; Lung Diseases ; etiology ; Male ; Middle Aged ; Mouth ; surgery ; Multivariate Analysis ; Postoperative Complications ; etiology ; Risk Factors ; Young Adult

Objective To investigate the effect of laparoscopic totally extraperitoneal (TEP) on sexual function in young and middle-aged patients with inguinal hernia. Methods 147 male with inguinal hernia treated by TEP from January 2014 to Feberary 2016 were included in the observation group, while 133 male with inguinal hernia treated by laparoscopic transabdominal preperitoneal (TAPP) during the same time were included in the control group. The effect of surgery and changes on sexual function between the two groups were retrospective analyzed and compared. Results The operative time, length of hospital stay, time of postoperative pain and in the observation group shorter than in the control group. The differences between the two groups were statistically significant (P < 0.05). The level of seminal alpha glucosidase, fructose contents and acid phosphatase in the observation group were higher than in the control group at 12 months after surgery. The differences between the two groups were statistically significant (P < 0.05). There were a small number of complications in both groups. After symptomatic treatment, all complications were cured. The ratio of complications and recurrences of the two groups have no significantly differences (P > 0.05). Conclusion Compared with laparoscopic TAPP, laparoscopic TEP can shorten the time of postoperative recovery, and will not increase the complications and recurrences. It is good for recovery of semen quality. It is worthy of attention.