ABSTRACT
Objective To study the application value of G-lipopolysaccharides(G-LPS) detection in patients with traumatic brain injury(TBI).Methods From Jan.2013 to Jun.2014,plasma G-LPS of TBI-patients and non-patients in this hospital were detected by using MB-80 microbiology analyzer and compared.Results of pathogenic microbiological detection of G-LPS positive TBI patients were analyzed,and G-LPS levels,detected before and after treatment,were also analyzed.Results G-LPS positive rate of TBI patients(33.33%) was higher than the 13.34% of non-TBI patients(P<0.05).After treatment,G-LPS level in G-LPS positive TBI patients significantly decreased(P<0.05).The common pathogenic bacteria,causing infection in TBI patients,included Acinetobacter bauman,Klebsiella pneumoniae and Escherichia coli,and the most common infection diseases included respiratory tract infections and urinary tract infections.Conclusion G-LPS detection could be used for the early detection of secondary infection in TIB patients,with significance for guiding clinical treatment.
ABSTRACT
Objective To investigate the clinical application value of endotoxin and (1-3)-β-D glucan detection in the patients with acute pancreatitis(AP).Methods The MB-80 microbiology rapid dynamic detection system was applied to detect the concentration of plasma LPS and (1-3)-β-D glucan in the patients with AP.Then the results were analyzed.Results Among 184 cases of AP complicating peripancreatic abscess and bilateral lung infection,endotoxin G-lipopolysaccharides positive was in 23 cases,the average value was 394.07 pg/mL,the positive rate was 10.87%,and 15 cases of Gram-negative bacterial infection were verified by the microorganism culture.Among 175 cases of AP complicating peripancreatic abscess and bilateral lung infection,67 cases were(1-3)-β-D glucan positive,the average value was 93.22 pg/mL,the positive rate was 38.29%,which were with the positive rate of serum(1-3)-β-D glucan in the non-AP group,the difference was statistically significant(P<0.05),the microorganism culture or smear verified that 22 cases were fungal infection.Conclusion Plasma endotoxin and (1-3)-β-D glucan detection provides the laboratory biological indicator and is conducive to the assessment of AP infection severity and clinical medication.
ABSTRACT
The present study developed an oral hepatocyte growth factor (HGF) gene therapy strategy for gastric ulcers treatment. An attenuated Salmonella typhimurium that stably expressed high HGF (named as TPH) was constructed, and the antiulcerogenic effect of TPH was evaluated in a rat model of gastric ulcers that created by acetic acid subserosal injection. From day 5 after injection, TPH (1 × 10⁹ cfu), vehicle (TP, 1 × 10⁹ cfu), or sodium bicarbonate (model control) was administered orally every alternate day for three times. Then ulcer size was measured at day 21 after ulcer induction. The ulcer area in TPH-treated group was 10.56 ± 3.30 mm², which was smaller when compared with those in the TP-treated and model control groups (43.47 ± 4.18 and 56.25 ± 6.38 mm², respectively). A higher level of reepithelialization was found in TPH-treated group and the crawling length of gastric epithelial cells was significantly longer than in the other two groups (P < 0.05). The microvessel density in the ulcer granulation tissues of the TPH-treated rats was 39.9 vessels/mm², which was greater than in the TP-treated and model control rats, with a significant statistical difference. These results suggest that TPH treatment significantly accelerates the healing of gastric ulcers via stimulating proliferation of gastric epithelial cells and enhancing angiogenesis on gastric ulcer site.