Adult ; Anthropometry ; Enteral Nutrition ; Female ; Humans ; Liver Cirrhosis ; physiopathology ; therapy ; Liver Function Tests ; Male ; Middle Aged

The antifungal mechanism of the TS67(Penicillum sp.) producing bioactive metabolites was investigated in this paper. The test indicated that mycelia growth, spores forming and spores germination of Bipolaris maydis and Fusarium oxysporum can be inhibitied by metabolites, after 50% fermentation broth acting 120 hours, the inhibition rate of hyphal growth can reach about 77.78%, 70.30%, the inhibition rate of spores forming also arrived at 58.8%, 73.5%; under 50% fermentation broth acting 12 hours, the inhibition rate of spores germination were up to 78.3%, 62.0%, the mycelia under activity metabolites conditoins also showed surface nodulation and growing point expanding irregularly, protoplasmic condesing, etc. Based on all these results, we may draw a conclusion that activity metabolites maybe target at fungal cell wall.

OBJECTIVE To investigate the bacterial distribution and drug resistance in patients in intensive care unit(ICU) and provide theoretical bases for rational usage of antibiotics.METHODS The distribution and drug resistance of 372 strains isolated from patients in ICU collected from Jul 2007 to Jun 2008 were investigated and studied retrospectively.RESULTS Among them,the Gram-negative bacilli covered 59.14 %,the Gram-positive cocci 28.49%,and the fungi covered 12.37%.Pseudomonas aeruginosa,Klebsiella,Stenotrophomonas maltophilia and Ancinetobacter were the main Gram-negative bacilli.Staphylococcus aureus,coagulation-negative Staphylococcus and Enterococcus were the main Gram-positive cocci.The resistance rate of P.aeruginosa,S.maltophilia and Acinetobacter to imipenem was over 10%,and the S.maltophilia was 96.7%,the resistance rate of three main Gram-positive cocci to vancomycin and teicoplanin was zero,and the isolated bacteria showed serious multidrug-resistance.CONCLUSIONS Periodic monitoring should be done to learn the drug resistance and bacterial distribution in ICU in order to rationally use antibiotics to avoid the generation of new drug resistant strains and control the infection of patients in ICU.

OBJECTIVE To investigate the change of antibiotics resistance of the Pseudomonas aeruginosa isolated from patients′s sputum in our hospital from Jan 2006 to Dec 2008,and offer basis for prevention of clinical infection and the reasonable use of drugs.METHODS The culture,identification and sensitivity to antibiotics of P.aeruginosa from the clinical sputum specimens were analyzed using USA VITEK-32 system.RESULTS Totally 196 strains of P.aeruginosa were isolated and characterized during the three years.The rates of resistance to cefoperazone/sulbactam were 18.37%,piperacillin/tazobactam 16.84%,netilmicin 17.35%,trimethoprim/sulfamesoxazole 100.00%,ampicillin 99.49%,cefazolin 99.49%,cefotetan 88.78%,and to ceftriaxone were 79.08%.The resistance rate to cephalosporins showed rising tendency.But the resistance rate to ?-lactam antibiotics showed deereasing tendency.CONCLUSIONS P.aeruginosa has single and multi-resistance to antibiotics seriously,but sensitive to ?-lactam antibiotics and aminoglycosides.Using antibiotics reasonably based on bacteria identification and sensitivity test is the best way to reduce the resistance of the pathogens.

Background Eicosapentaenoic acid(EPA)function as the critical lipid mediators involved in several biological events in human body and play important role in suppressing the genesis of vascular endothelial growth factor (VEGF),migration and proliferation of vascular endothelial cells.Many ocular diseases were proved to be associated with neovascularization.Objecfive The purpose of this study was to investigate the inhibitory effect of EPA on the proliferation of human umbilical vein endothelial cells (HUVEC) indueed by VEGF. Methods HUVEC strain was cultured and passaged,and difierent concentrations of EPA were added to the medium with and without VEGF.The cultured cells were identified by antiofactor Ⅷ polyclonal antibody.The suppressing role of different concentrations of EPA on the proliferation of VEGF-induced or-uninduced HUVEC was assessed by MTT method.The influence of difierent concentrations of EPA on the cellular cycle of VEGF-induced HUVEC was assayed using flow eytometry.The expression of Flk-1,a receptor of VEGF,in the HUVEC Was detected by immunohistochemistry. Results Cultured HUVEC showed the ftlsiform in shape and presented with the cobblestone-like arrangement with the positive response for Ⅷ factor-related antigen.Various concentrations of EPA showed obviously inhibitory effect on VEGF-induced or-unindueed HUVEC at a dose-dependent manner (F=23.072.P=0.000).The inhibitory ability of EPA on VEGF-induced HUVEC was stronger than VEGF-uninduced HUVEC(F=41.417,P=0.000).In 24,48 and 72 hours,the action of EPA on the proliferation of HUVEC was gradually enhanced with the prolong of time(F=1.495,P=0.236).Cell cycle analysis indicated that EPA arrested VEGF-induced HUVEC in G0/G1 phase.The ratio of HUVEC in G0/G1 phase in EPA group was(75.83±1.56)%,and that in control groups was(68.62±1.44)%,showing a significant difference between them(t=-5.88,P=0.00),and no apoptosis of HUVEC was found in both groups.Flk-1 was strongly expressed in the cellular nucleus and cytoplasm in control group.However,the positive expressing intensity of Flk-1 in the HUVEC weakened,and the positive cell number was evidently less in EPA group. Conclusion EPA can inhibit the proliferation of VEGF induced HUVEC through arresting the synthesis of DNA of HUVEC and downregulate the expression of Flk-1 in HUVEC.These results suggest that EPA might exert an antiangiogenic effect.

BackgroundDry eye is a multi-factorial-induced tear film and ocular surface disorder.Immunoinflammation plays a key role in the pathogenesis of dry eye.As inhibitor of the cyclo-oxygenase pathway,nonsteroidal anti-inflammatory drugs play an anti-inflammatory and anti-hypersensitivity role,and it can be a potential treatment for dry eyes.ObjectiveThis study was to investigate the effectiveness of nonsteroidal anti-inflammatory drugs (0.1％topical pranoprofen) on moderate to severe dry eyes and its mechanism.MethodsThis was a small sample of randomized controlled clinical trial.Thirty right eyes of 30 patients with moderate to severe dry eyes were included in the study according to the diagnosis criteria and randomized into two groups.The patients of the trial group received topical administration of 0.1％ pranoprofen plus 0.1％ sodium hyaluronate,and those of the control group received the topical 0.1％ sodium hyaluronate only.Ocular surface inflammation index scores (OSDI) and ocular surface fluorescine staining (OSS) scores were measured under the slit lamp,and tear film break-up time (BUT),Schirmer Ⅰ test values were evaluated.The expression of human leucocyte antigen-DR (HLA-DR) and CD11b in conjunctiva epithelial cells were detected by impression cytology and flow cytometry (FCM).All the indexes were compared between the two groups before and after treatment.Informed consent was obtained from all patients.ResultsThere were no significant differences in terms of age and gender and their baseline values between the trial group and control group (t=0.412,P=0.684;x2=0.240,P=0.624),and so were all the indexes (P＞0.05).Compared with the control group,the OSDI,OSS scores and cells positive for HLA-DR were lowered but the BUT was delayed in the trial group on day 15 ( t=2.43,P=0.03;t=2.83,P=0.01;t=3.29,P=0.00;t=3.23,P=0.00 ).No significant differences were found in the Schirmer Ⅰ test value and CD11b expression between these two groups (t=0.17,P=0.87;t=0.28,P=0.79).The OSDI,OSS scores and BUT were significantly improved,and the number of cells positive for HLA-DR were reduced 15 days after administration of drugs in comparison with before treatment in the trial group ( t =12.30,10.70,6.10,7.92,P =0.00 ).However,there were no comparable alteration seen in these indexes before and after the usage of drugs in the control group ( P＞0.05).Positive correlations were found in HLADR expression with OSDI and OSS ( r =0.601,P =0.018 ; r =0.586,P =0.022 ) and a negative correlation in HLADR expression with BUT (r=-0.697,P=0.004) on day 15 in the trial group.ConclusionsTopical usage of 0.1％ pranoprofen is beneficial for remitting the ocular signs and symptoms in moderate to severe dry eyes.This study illustrates that topical usage of 0.1％ pranoprofen can down-regulate the expression of inflammatory markers in conjunctival epithelial cells.

Objective:To evaluate the clinical value of percutaneous transhepatic cholangial drainage (PTCD) and percutaneous transhepatic cholangial stent(PTCS)implantation therapy for malignant biliary obstruction in the elderly patients.Methods:Fifty three patients over 60 years-old were treated with PTCS implantation (n=35),PTCD for internal-external drainage(n=11),or single external drainage(n=7). The imaging examination was performed for all the patients one week after surgery. The serum levels of total bilirubin (TBIL) and alanine aminotransferase (ALT) were detected before and after surgery.Rusults:Metallic stents were successfully implanted in 32 patients during the surgery, and 3 patients were implanted 5 to 7 days later after PTCS. Both total serum levels of TBIL and ALT were significantly decreased at one week after surgery (P<0.05). The mean survival periods were 11.5 months for stent implantation patients and 5.5 months for PTCD patients. Conclusion:PTCD and PTCS are easy to perform and safe and effective in the treatment of malignant biliary obstruction of elderly patients.

0.05),but the numbers of CD41+ cells and platelets were increased significantly(P

OBJECTIVETo investigate the effect of ischemic reperfusion(I-R) on the expression of P-selectin(Ps) of platelets, CD11b of leukocytes, monocyte chemotactic protein-1(MCP-1) mRNA of myocardial tissue and the protective role of MgSO(4).

METHODSIschemic reperfusion rat model was established in the experiments. All animals were randomly divided into 3 groups sham group, I-R group and Mg(2+) group. The expression of Ps of platelets and CD11b of leukocytes was determined by flowcytometry and the expression of MCP-1 mRNA of myocardial tissue was measured by RT-PCR admission and at 5, 30, 60, 180, 360 min of reperfusion (R5, R30, R60, R180, R360).

RESULTSThe expression of Ps of platelets in I-R group began to rise at R5 and peaked at R60 P<0.01); the expression of CD11b of leukocytes was significantly higher than that of the control groups P<0.01 and P<0.05) the expression of MCP-1 mRNA of myocardial tissue began to rise at R60,reaching the highest at R360 P<0.01) the concentration of Ca(2+) of the serum was significantly higher than that of the control groups P<0.01 and P<0.05). MgSO(4) inhibited the expression of Ps of platelets and MCP-1 mRNA of myocardial tissue and decreased serum Ca(2+)concentration, but did not affect the expression of CD11b of leukocytes.

CONCLUSIONI-R can increase the expression of cell adhesion molecules and cell chemotactic factor. MgSO(4) may protect myocardial tissue from ischemic reperfusion injury by inhibiting the expression of Ps of platelets and MCP-1 mRNA of myocardial tissue and decreasing the concentration of Ca(2+) of the serum.

Animals ; CD11b Antigen ; genetics ; Calcium ; blood ; Chemokine CCL2 ; genetics ; Gene Expression ; Magnesium Sulfate ; therapeutic use ; Male ; Myocardial Reperfusion Injury ; metabolism ; prevention & control ; P-Selectin ; genetics ; RNA, Messenger ; analysis ; Rats ; Rats, Sprague-Dawley

Objective To study the effect of lipopolysaccharide(LPS)on the endo-pulmonary natrium channel(ENaC)expression in the lung of rats with acute lung injured.Method Sixteen rats were randomly divided into normal control group and LPS-group.Rats of normal control group and LPS-group were killed at 6 hours after intravenous injection of normal saline(8 ml/kg)or LPS(8 mg/kg).The extent of lung injury was assessed by arterial blood gas analysis and histological examination.At the same time,?-ENaC protein and???- ENaC mRNA expression in the lung tissue were analyzed by immunohistochemistry and RT-PCR.Results PaO_2 in LPS-group was noticeably lower than in normal control group(P