ABSTRACT
As a typical human pathogenic fungus,
ABSTRACT
Objective To explore the main pathogenic bacteria and sensitive antibiotics and related factors in bile in patients with acute biliary pancreatitis (ABP).Methods 176 patients with ABP from September2015 to September 2017 were selected as the study subjects.Bile was collected for bacterial culture and antibiotic susceptibility testing.The relationship between different obstruction sites and total bilirubin levels and bacterial detection rates was compared.Results The positive rate of bacterial culture was 68.18％.There were 155 aerobic bacteria and 25 anaerobic bacteria.Among the G-bacteria, E.coli (62.85％) accounted for the largest proportion, Enterococcus (12.26％) accounted for the highest proportion of G+ bacteria, and Bacteroides fragilis (52.00％) accounted for the majority of anaerobes..The sensitivity of G-bacteria to meropenem, cefepime and ciprofloxacin was greater than 80％, which was 96.77％, 91.13％ and 84.68％, respectively.The sensitivity rate of G+ to vancomycin was 100％, and the sensitivity rate to meropenem, tetracycline, and azithromycin was higher than 80％.The positive rate of bacterial culture in high obstruction was significantly higher than that in middle-low obstruction (P＜0.05).The low-level group was significantly higher than the middle-level group and the high-level group (P＜0.05), and the middle-level group was significantly higher than the high-level group (P＜0.05).Conclusion For the early anti-infection treatment of ABP patients, aminoglycosides+third-generation cefquinolones+ metronidazole can be used for treatment.Patients with high obstruction and low TB levels need to strengthen anti-infection treatment.
ABSTRACT
Objective To investigate the effect of cetuximab on the proliferation of pancreatic carcinoma cell lines SW1990 and PANC-1.Methods 100.0 μg/mL cetuximab added DMEM medium(cetuximab group), simple DEME medium as the control group, two groups of the pancreatic carcinoma cell lines SW1990 and PANC-1 were cultured, the SW1990 and PANC-1 were detected by MTT after cultured 12, 24, 48 h, the expression of epidermal growth factor receptor gene(EGFR-mRNA)and protein in two groups were detected by RT-PCR and Western-blot after 24 h;the cell cycle was detected by flow cytometry after 24 h, the activity of Wnt/ beta-catenin pathway was detected by double luciferase assay after 24 h.Results The OD of the cetuximab group of the SW1990 and PANC-1 cell lines proliferation were lower than the control group after 12, 24, 48 h (P<0.05);the OD of the cetuximab group of the SW1990 and PANC-1 cell lines proliferation in 24, 48 h was significantly decreased than 12 h (P<0.05);the proportion of G1 phase cells of the SW1990 and PANC-1 of the cetuximab group increased significantly than the control group (P<0.05), the proportion of S and G2 phase cells decreased significantly than the control group (P<0.05), the expression of the EGFR-mRNA and protein of the cetuximab group were lower than the control group (P<0.05),the TOP/FOP of the Wnt/beta-catenin pathways' activity of the cetuximab group was lower than that of the control group (P<0.05).Conclusion The proliferation of pancreatic carcinoma cell lines SW1990 and PANC-1 was significantly inhibited by cetuximab, which was mainly achieved by decreasing the activity of Wnt/beta-catenin pathway and the expression of EGFR-mRNA and protein.