ObjectiveTo investigate the point prevalence rate of nosocomial infection and discover the problems in the management of nosocomial infection.MethodsA team of surveyors were trained to collect necessary data of inpatients on a single day. Questionnaires about nosocomial infection cases were filled out and analysed.Results492 patients were investigated, 31 patients developed into nosocomial infection, the point prevalence rate was 6.30%. The point prevalence rate of nosocomial infection in ICU was 57%; The main infectious site was urinary tract. ConclusionThe survey on the point prevalence rate is beneficial to manage nosocomial infection.

Humans ; Tinnitus ; diagnosis ; therapy

Environmental Exposure ; analysis ; Environmental Monitoring ; instrumentation ; Environmental Pollutants ; analysis ; metabolism ; Humans ; Risk Assessment

Abstract: Objective　 This article aims to present a rare case of severe fever with thrombocytopenia syndrome (SFTS) complicated by with bacteraemia caused by Campylobacter jejuni, and to discuss the pathogenic characteristics, culture methods, clinical features and treatment points of Campylobacter jejuni and the patient's outcome, with a view to raising clinical awareness of blood culture and providing experience for the treatment of this disease. Methods　The clinical data of a case with SFTS complicated by bacteremia caused by Campylobacter jejuni admitted to Weihai Municipal Hospital were collected and the diagnostic process of the pathogenic bacteria as well as the treatment plan were retrospectively analysed. Results　The patient was a female who had been bitten by a tick bite half a month ago and presented to the hospital on 30th August with a fever, vague pain in the peribulbar abdomen and diarrhea for 5 days. Laboratory tests showed leukopenia and thrombocytopenia, and nucleic acid detection for SFTS was positive, resulting in a diagnosis of SFTS. After a week of antiviral treatment with ribavirin and symptomatic treatment, the patient suddenly experienced high fever at night, with a temperature reaching 39.5 °C. Blood cultures were immediately taken from both sides of the double bottle. Bilateral anaerobic bottles were tested for positive after 53.06 hours, and Gram-negative Campylobacter was cultured anaerobically in a transfer blood plate and further identified as Campylobacter jejuni using mass spectrometry MALDI-TOF MS. Vancomycin was stopped clinically on the basis of bacterial pathogenesis and meropenem was used for anti-infection and symptomatic treatment. During the treatment, blood culture and nucleic acid detection for SFTS turned negative, and the patient's symptoms improved. After normal results were achieved in the follow-up testing, the patient was discharged. Conclusions　This case serves as a reminder that Campylobacter jejuni not only causes intestinal infections, but can also lead to extra-intestinal infections in immunocompromised individuals. Clinical and laboratory personnel should increase their recognition of Campylobacter jejuni, prioritize blood culture methods, and utilize a multidisciplinary approach in diagnosis and treatment.

Gambogic acid-loaded polylacticacid nanoparticles (GA-PLA-NPs) were prepared by modified emulsification solvent diffusion. The shape of nanoparticles was observed by transmission electron microscope (TEM).The size distribution and mean diameter were measured by laser particle size analyzer. The entrapment efficiency and content of drug loading were determined by Ultraviolet Spectrophotometer after ultracentrifugation. GA-PLA-NPs release behavior in vitro was carried out. The acute toxicity were carried out to study the security of GA-PLA-NPs. The preparation process adapted to the formulation was as follows: the volume ratio of the aqueous and organic was 2∶1(v/v), the surfactant concentration in aqueous was 0.5%,the drug concentration in organic was 0.1%(w/v), GA∶PLA was 1∶4(w/w). The mean diameter was 51.36nm for the nanoparticles prepared by above conditions.The entrapment efficiency and content of drug loading were 98.87 % and 13.3 %. The release behavior of drug in vitro showed an initial burst effect with subsequently a slower rate stage. The LD50 value of GA-PLA-NPs on mouse was 26.3 mg/kg. The results showed that the GA-PLA-NPs were well prepared with stable quality and high dispersion. PLA-NPs might be used as a new carrier for gambogic acid.

The results of the detection of fhe antibody against dsDNA in 244 sera by immunohisto—chemical method of enzyme marking SPA were reported and compared with immunoflurescence assay and enzyme marking antibody method. Positive rate in 31 cases with SLE was 71%. Of the 31 cases 21 with SLE in theactive phase were all positive,1 out of 10 cases at the recovery stage was positive,2 outof 152 cases with other connective tissue and non connective tissue disease were weaklypositive,61 normal persons were all negative.The overall agreement was the same asthe immunofluorescence and enzyme marking antibody method.Enzyme marking SPAmethod offers a number of significant advantageous.This method was easily operated,did not need to prepare second antibody,and special equipment was not needed.It can beused clinically.

Objective To study the effect of purified water on the neurobehavioral development of the offspring and the synergistic effect of the magnesium deficiency in food. Methods SD rats were divided into four groups,control food plus control water (control group),control food plus purified water,magnesium deficiency food plus control water,magnesium deficiency plus purified water,from five weeks of age of the F0 generation to five weeks of the F1 generation respectively. Morris water maze (MWM) was used to test the spatial learning and memory ability of offspring of rats. Results In the early training days of the place navigation,control group offspring of rats showed a shorter swimming time than the other groups. There were no significant differences among all experimental groups in the later training days of the place navigation,spatial probe test and visible platform trial,however the tendency was still to remain. Conclusion Purified water can damage the learning ability of offspring of rats and the learning ability delay will be more obviously when magnesium is deficient in food.

With the aggravation of enviromental pollution, a quickly, sensitive, inexpensive monitoring means should be developed to protect water resources. Luminescent bacteria as biosensor have the advantages mentioned above. During past two decades, luminescent bacteria toxicity test was used widely in comprehensive toxicity evaluation, screening, monitoring and specific pollutants detection in water, the recent progress in this field was reviewed in this paper.

Animals ; Betaine-Homocysteine S-Methyltransferase ; therapeutic use ; Homocysteine ; blood ; Hyperhomocysteinemia ; blood ; therapy ; Male ; Rats ; Rats, Wistar ; Recombinant Proteins ; therapeutic use

Objective To investigate the risk factors of postoperative complications of delayed hemorrhage,perforation and digestive tract stenosis after endoscopic submucosal dissection (ESD).Methods The complete data of 793 patients with digestive tract disease who underwent the endoscopic submucosal dissection in the Department of Digestive Surgery in our hospital from January 2011 to December 2014 were retrospectively analyzed.All of the patients were divided into delayed hemorrhage group (n =67) and nonbleeding group (n =726);perforation group (n =47) and non-perforation group (n =746);and digestive tract stenosis group (n =38) and non-stenosis group (n =755).The clinical basic data,lesion related data,and operation related data were independent risk factor and analyzed by single factor analysis and Logistic multiple factor regression analysis.Results The incidence of delayed bleeding,perforation and stenosis in patients with ESD were 8.45％,5.93％,and 4.79％,respectively.The results of single factor analysis:the risk factors for delayed bleeding were long-term use of anticoagulant drugs,gastric sinus disease,lesion diameter,and lesion excision (P ＜ 0.05).The risk factors for postoperative perforation were the diameter of the lesion and the time of operation (P ＜ 0.05).The risk factors of digestive tract stenosis were the esophageal lesions,the diameter of the lesion,and the depth of the lesion to the intrinsic muscle layer (P ＜ 0.05).The results of multi factor Logistic regression analysis:the risk ranking of risk factors for delayed bleeding was gastric antrum occurrence lesion ＞ lesions graded resection ＞ long-term use of anticoagulants ＞ lesion diameter (≥5 mm).The risk ranking of risk factors for perforation was operation time (≥90 mm) ＞ lesion diameter (≥5 mm).The risk ranking of risk factors for digestive tract stenosis was esophageal lesion ＞ lesion diameter (≥ 5 mm) ＞ lesions depth to the muscularis propria.Conclusions For long-term anticoagulation,gastric antrum and fractional resection lesions of patients should pay attention to delayed bleeding.Patients with long operation time are easy to cause postoperative perforation.For long-term anticoagulation,gastric antrum and fractional resection lesions of patients should pay attention to delayed bleeding.