OBJECTIVETo study the preventive effect of herbal formulation on experimental murine urinary tract infection (UTI) induced by Dr Escherichia coli 11128.

METHODSE. coli 11128 carrying Dr fimbriae was isolated from patients with chronic pyelonephritis. The minimal inhibitory concentration (MIC) value of herbal solution for E. coli 11128 was determined for further studies. Forty C3H/HeJ mice were divided into the herb-treated group (n=20, given Chinese herbs by gavage at an average dose of 20 g/kg body weight daily 3 days before inoculation), and control group (n=20, given the same amount of distilled water by gavage). Three and 6 days after infection, bacteria were counted in the urine and the kidneys of the mice. Kidney histopathologic changes were evaluated. Neutrophils infiltration and accumulation were detected.

RESULTSThe MIC value of herbal solution was 0.1 g/mL for the E. coli 11128. In herb-treated mice, there was a significant reduction in bacterial counts in urine and colonization densities of kidneys. Microscopic studies revealed signs of inflammation in kidneys. In herb-treated mice, herbal administration resulted in significantly reduced neutrophilic infiltrates (P<0.05). The semi-quantitative scores for renal lesions were significantly lower (P<0.05).

CONCLUSIONProphylactic administration of herbal formulation potentiated the effect in partially preventing experimental murine ascending UTI.

Animals ; Disease Models, Animal ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Escherichia coli ; drug effects ; Escherichia coli Infections ; drug therapy ; prevention & control ; Female ; Kidney ; drug effects ; pathology ; Mice, Inbred C3H ; Phytotherapy ; Urinary Tract Infections ; drug therapy ; microbiology ; prevention & control

Infectious complications after transrectal ultrasound-guided prostate biopsy (TRUS-Bx) appear to be increasing, which reflects the high prevalence of antibiotic-resistant strains of Enterobacteriaceae. Identifying patients at high risk for antibiotic resistance with history taking is an important initial step. Targeted prophylaxis with a prebiopsy rectal swab culture or augmented antibiotic prophylaxis can be considered for patients at high risk of antibiotic resistance. If infectious complications are suspected, the presence of urosepsis should be evaluated and adequate antibiotic treatment should be started immediately.
Anti-Bacterial Agents/therapeutic use ; Antibiotic Prophylaxis ; Biopsy/*adverse effects ; Drug Resistance, Bacterial ; Escherichia coli Infections/drug therapy/*prevention & control ; Humans ; Male ; Prostate/*pathology ; *Ultrasound, High-Intensity Focused, Transrectal ; Urinary Tract Infections/*drug therapy/microbiology

PURPOSE: To assess the rates of infectious complications before and after the change of prophylactic antibiotic regimens in prostate needle biopsy. MATERIALS AND METHODS: The records of 5,577 patients who underwent prostate needle biopsy at Asan Medical Center between August 2005 and July 2012 were retrospectively reviewed. Group 1 (n=1,743) included patients treated between 2005 and 2009 with fluoroquinolone for 3 days, group 2 (n=2,723) included those treated between 2009 and 2012 with ceftriaxone once before the biopsy and fluoroquinolone before biopsy and continue therapy for 3 days, and group 3 (n=1,111) received the same treatment for more than 7 days after the biopsy. Univariable and multivariable logistic regression models addressed risk factors associated with infectious complication after prostate needle biopsy. RESULTS: Infectious complication after prostate needle biopsy developed in 18 (group 1), seven (group 2), and two patients (group 3) (p=0.001). In group 1, seven patients with infectious complication had positive blood cultures and harbored fluoroquinolone-resistant Escherichia coli, four had ceftriaxone susceptible isolates, and three had extended spectrum beta-lactamase-positive E. coli. Two patients in group 1 required intensive care because of septic shock. In multivariable analysis, the patients with combination of fluoroquinolone and ceftriaxone had significantly lower infectious complication rate than the fluoroquinolon alone (p=0.003). CONCLUSIONS: Antibiotic prophylaxis with ceftriaxone and fluoroquinolone before prostate needle biopsy decreased the risk of potentially serious infectious complications.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antibiotic Prophylaxis/*methods ; Biopsy, Needle/adverse effects/methods ; Ceftriaxone/*therapeutic use ; Cross Infection/epidemiology/etiology/*prevention & control ; Drug Evaluation/methods ; Drug Resistance, Bacterial ; Drug Therapy, Combination ; Escherichia coli/drug effects ; Escherichia coli Infections/epidemiology/prevention & control ; Fluoroquinolones/*therapeutic use ; Humans ; Incidence ; Male ; Middle Aged ; Prostatic Neoplasms/*pathology ; Republic of Korea/epidemiology ; Retrospective Studies ; Ultrasonography, Interventional ; Young Adult

OBJECTIVETo explore the preventive effect of lanthanum chloride on enteral bacterial translocation in scalded rats.

METHODSNinety Sprague-Dawley (SD) rats were employed in the study and randomly divided into three groups, i.e. normal control (A), burn control (B) and treatment (C) groups. Plasmid PUC19 labelled by JM109 was transfected to Escherichia coli (E. coli), so that restriction endonuclease finger - print image spectrum analysis could be applied to the tracing and quantification of the translocation of E. coli from intestine to mesenteric lymph nodes (MLNs) and blood. The intestinal tissue contents of endotoxin (ET), nitric oxide (NO), nitric oxide synthase (NOS), malondialdehyde (MDA) and superoxide dismutase (SOD) were determined.

RESULTSIt was identified that the bacteria in MLNs and blood exhibited the same gene map with those from gastric gavage in B and C groups. But the bacterial quantity in MLNs in C group on 3 postburn day (PBD) was much lower than that in B group (P < 0.05). The intestinal MDA content in C group on 1 and 3 PBDs was obviously higher than that in B group (P < 0.05).

CONCLUSIONBacteria (E. coli) could be translocated from gut to MLNs and blood, which could be evidently alleviated by lanthanum chloride by means of its bactericidal property, inhibition of NOS activity, so that NO production decreased, and its ability to increase SOD activity leading to less production of MDA.

Animals ; Burns ; drug therapy ; microbiology ; Endotoxins ; blood ; metabolism ; Escherichia coli ; drug effects ; growth & development ; metabolism ; Escherichia coli Infections ; blood ; microbiology ; prevention & control ; Female ; Intestines ; drug effects ; metabolism ; microbiology ; Lanthanum ; pharmacology ; Lymph Nodes ; drug effects ; microbiology ; Male ; Malondialdehyde ; blood ; metabolism ; Mesentery ; drug effects ; microbiology ; Nitric Oxide ; blood ; metabolism ; Nitric Oxide Synthase ; blood ; metabolism ; Rats ; Rats, Sprague-Dawley ; Superoxide Dismutase ; blood ; metabolism

After antibiotic prophylaxis with metronidazole and levofloxacin, a transrectal sextant biopsy was performed under the guide of transrectal ultrasonography (TRUS) for a 75-year-old suspicious patient with prostate adenocarcinoma. Although antibiotics were also given after this procedure, the patient still developed fever, anxious, agrypnia and headache. Blood cultures remained negative. Lumbar puncture was performed and was consistent with Escherichia coli bacterial meningitis.
Adenocarcinoma ; pathology ; Aged ; Anti-Infective Agents ; administration & dosage ; Anti-Infective Agents, Urinary ; administration & dosage ; Biopsy ; adverse effects ; Escherichia coli Infections ; drug therapy ; etiology ; Humans ; Levofloxacin ; Male ; Meningitis ; etiology ; microbiology ; prevention & control ; Metronidazole ; administration & dosage ; Ofloxacin ; administration & dosage ; Prostatic Neoplasms ; pathology ; Ultrasound, High-Intensity Focused, Transrectal