Objective To investigate the clinical characteristics,antimicrobial susceptibility of pathogens,and laboratory test results of patients with Vibrio vulnificus infection.Methods The clinical and etiological data,as well as laboratory tests were reviewed retrospectively for 14 patients with V.vulnificus infection,who were admitted to the 909th Hospital from May 2022 to November 2023.Results Overall,9 of the 14 patients(64.3％)had a history of exposure to seafood or seawater.Six patients(42.9％)had underlying diseases,such as hepatitis,coronary heart disease and diabetes mellitus.Eleven patients(78.6％)had a good outcome,while 3 patients(21.4％)had a poor outcome.A total of 18 strains of V.vulnificus were isolated,including 11(61.1％)strains from wound pus,and 7 strains(38.9％)from blood.V.vulnificus isolates were susceptible to ampicillin-sulbactam,piperacillin-tazobactam,imipenem,meropenem,tetracycline,ciprofloxacin,levofloxacin,trimethoprim-sulfamethoxazole,and chloramphenicol,but only 50.0％,55.6％,and 61.1％of the strains were susceptible to cefazolin,ampicillin,and amikacin,respectively.White blood cell count,neutrophil,C-reactive protein,prothrombin time,fibrinogen,activated partial thromboplastin time,D-Dimer,urea nitrogen,creatinine,uric acid,glutamic-pyruvic transaminase,glutamic oxaloacetic transaminase,lactate dehydrogenase,alkaline phosphatase,creatine kinase,creatine kinase isoenzyme MB,hypersensitive troponin I,myoglobin,procalcitonin,and N-terminal pro-brain natriuretic peptide were significantly increased in patients with V.vulnificus infection.Conclusions Wound pus and blood samples collected simultaneously for microbial culture can improve the detection of V.vulnificus.Early debridement and antibiotic combination therapy are vital for improving patient survival rate.

Objective To investigate the clinical characteristics,antimicrobial susceptibility of pathogens,and laboratory test results of patients with Vibrio vulnificus infection.Methods The clinical and etiological data,as well as laboratory tests were reviewed retrospectively for 14 patients with V.vulnificus infection,who were admitted to the 909th Hospital from May 2022 to November 2023.Results Overall,9 of the 14 patients(64.3％)had a history of exposure to seafood or seawater.Six patients(42.9％)had underlying diseases,such as hepatitis,coronary heart disease and diabetes mellitus.Eleven patients(78.6％)had a good outcome,while 3 patients(21.4％)had a poor outcome.A total of 18 strains of V.vulnificus were isolated,including 11(61.1％)strains from wound pus,and 7 strains(38.9％)from blood.V.vulnificus isolates were susceptible to ampicillin-sulbactam,piperacillin-tazobactam,imipenem,meropenem,tetracycline,ciprofloxacin,levofloxacin,trimethoprim-sulfamethoxazole,and chloramphenicol,but only 50.0％,55.6％,and 61.1％of the strains were susceptible to cefazolin,ampicillin,and amikacin,respectively.White blood cell count,neutrophil,C-reactive protein,prothrombin time,fibrinogen,activated partial thromboplastin time,D-Dimer,urea nitrogen,creatinine,uric acid,glutamic-pyruvic transaminase,glutamic oxaloacetic transaminase,lactate dehydrogenase,alkaline phosphatase,creatine kinase,creatine kinase isoenzyme MB,hypersensitive troponin I,myoglobin,procalcitonin,and N-terminal pro-brain natriuretic peptide were significantly increased in patients with V.vulnificus infection.Conclusions Wound pus and blood samples collected simultaneously for microbial culture can improve the detection of V.vulnificus.Early debridement and antibiotic combination therapy are vital for improving patient survival rate.

Objective To understand the distribution and antimicrobial resistance of pathogens causing wound in-fection in army officers and soldiers following military training injury,and provide reference for antimicrobial use in clinical anti-infection treatment.Methods Wound secretion from injured army patients who were admitted to a mili-tary hospital between January 2014 and June 2015 was performed bacterial culture and antimicrobial susceptibility testing.Results 647 pathogenic bacteria strains were isolated from 1 029 wound secretion specimens ,isolation rate was 62.88%,the top 6 isolated bacteria were Staphylococcus aureus (S .aureus ,29.99%,n =194),Escherichia coli (E.coli,19.32%,n=125),Pseudomonas aeruginosa (19.17%,n=124),Enterococcus spp .(13.60%,n=88), Klebsiella pneumoniae (K .pneumoniae ,7.73%,n =50),and Acinetobacter baumannii (A.baumannii,5.87%, n=38).S .aureus and Enterococcus spp .had high susceptibility to vancomycin,linezolid ,and daptomycin (resist-ance rates ≤3.41 %),44.33% of S .aureus were methicillin-resistant,2.27% of Enterococcus spp .were vancomy-cin-resistant .E.coli and K .pneumoniae had high susceptibility rates to piperacillin/ tazobactam (resistance rates were 1 .60% and 0 respectively),except A.baumannii,resistance rates of gram-negative bacteria to carbapenems were all low (resistance rates ≤4.00%).Conclusion Military clinicians should select appropriate antimicrobial agents according to antimicrobial susceptibility testing results,reduce the disability rate due to infection in trauma patients,and provide clinical support for the treatment of the wounded.

Objective To understand the distribution and drug resistance of fungus isolated from urinary tract infection for guid-ing clinical rational drug use.Methods The clinically submitted urinary system samples from January 2012 to June 2013 were per-formed the fungal identification and the drug susceptibility test to 5 kinds of anti-fungal drugs.The detection results were analyzed by the WHONET software.Results (1)239 strains of fungi were isolated,in which Candida albicans occupied the top place,fol-lowed by Candida glabrata and Candida tropicalis;(2)the sensitivity rates of 239 fungal strains to fluconazole(FCA),itraconazole (ITR),voriconazole(VRC),5-fluorocytosine(5-FC)and amphotericin B(AMB)were 63.2%,61.9%,92.5%,93.7% and 93.7%respectively;(3)Candida albicans had the high sensitivity to 5 kinds of anti-fungal drugs,which reached more than 95%;(4)Candida gla-brata had the lowest sensitivity to FCA and ITR,only 9.7%.Conclusion The fungal infection in the urinary system is dominated by Candi-da albicans,due to the different sensitivity to 5 kinds of anti-fungal drugs in different fungi,therefore strengthening the fungal identification of the urinary system and the drug sensitivity test can provide the important reference basis for clinical rational use of anti-fungal drugs.

Objective To establish the platelet antigen panel for identifying the specificity of platelet antibodies which cause platelet transfusion refractoriness and neonatal alloimmune thrombocytopenia and provide evidence for clinical therapy and platelet genotyping research.Methods Based on the frequency distribution of human platelet alloantigen (HPA)-1 to HPA-16 gene in China, the frequencies of HPA-1 to HPA-6,HPA-15 alleles in blood group O donors were genotyped by the polymerase chain reaction with sequence-specific primers (PCR-SSP) method, and suitable donors were chosen to establish platelet-specific antigen panel.Using the established platelet-specific antigen panel, the specificity of platelet antibodies caused by alloimmune reaction was identified by using simplified sensitized erythrocyte platelet serology assay (SEPSA).Results Eleven ptatelet donors with blood group O were chosen to establish platelet-specific antigen panel which can identify specificity of HPA-1 to HPA-6, HPA-15 antibodies.One case of HPA-4b (Penb) and two cases of HPA-15a (Govb) platelet specific antibodies were detected in 1 120 samples.Conclusion Identifying the specific platelet antibodies using platelet specific antigen panel has profound significance on increasing the safety and effectiveness of clinical platelet transfusion and prevention of neonatal alloimmune thrombocytopenia.

Objective To determine the sensitization of Nicotinamide (NA) on None Focused Ultrasound (NFU) on GLC-82 cells in vitro. Methods The subjectives were divided into A、B、C and D four groups, group A was negative control, group B was treated with NA, group C was irradiated with NFU, group D was treated with both NFU and NA; MTT assay was used to evaluate the cytotoxicity of NA and its sensitivity for NFU on GLC-82 cells quantified by calculating the sensitive enhancement ratios (SER); Morphologic change of cells was observed with light microscope, fluorescence microscope and scanning electron microscope;Flow cytometry was performed to determine the percentage changes of apoptosis and distributional percentage of the cell cycle of GLC-82 cells in response to NFU, NA and the effect of its intervention to NFU. Results The cytotoxicity of NA increased in a dose-dependent manner after 24-hour treatment, with the optimal dose range of 1 mg/mL～5 mg/mL. A sub-toxic dose of NA at 3 mg/ml was used in the subsequent experiments; After treatment with NA plus NFU, microvilli and filipodium of GLC-82 cells reduced, shortened and shrunk into corpuscule-shape; The apoptosis rate of group D was more than that in group B and C, with cell cycle arrested at phase S and G2.Conclusion NA can significantly enhance the effect of NFU on GLC-82 cells, which provides evidence for NA as a sensitization to NFU in clinic.