Adult ; Brucellosis ; Humans ; Male ; Middle Aged ; Occupational Diseases

Action Potentials ; drug effects ; physiology ; Animals ; Female ; Guinea Pigs ; Heart Ventricles ; drug effects ; Papillary Muscles ; drug effects ; physiology ; Progesterone ; pharmacology

Objective To investigate the prevalence rates of healthcare-associated infection (HAI)and antimicrobial use in a hospital in 2011-2013,and provide scientific basis for prevention and control of HAI.Methods HAI prevalence rates and antimicrobial use in a hospital in 2011-2013 were investigated by combination of bedside visiting and medical records reviewing.Results A total of 3 011 patients were investigated during three years,the prevalence rates were 3.49%, 2.87% and 3.98% respectively,difference of prevalence rates during three years were not significantly different (χ2 =2.105,P =0.356).Among HAI sites,lower respiratory tract ranked first,the major pathogens were gram-negative bacil-li,constituent ratios of different pathogens were not significantly different among three years(χ2 =1.003,P =0.972);anti-microbial usage rates and specimen detection rates among 3 years were both significantly different(χ2 =12.569,P <0.01;χ2=6.758,P <0.01,respectively),antimicrobial usage rate was highest in 2011(63.40%),and specimen detection rate was highest in 2012(62.14%).Conclusion Point prevalence rate in this hospital is at average national level,antimicrobial usage rate decreased, the consciousness of pathogenic detection gradually enhanced,clinical application management of antimicrobial agents still needs to be strengthened continuously.

OBJECTIVE To study the analytic method for assaying of glutaral concentration by enzyme-labeled device at one time.METHODS Controlled solution of glutaral and sample solution were taken out and kept until the room temperature.Optical density value was detected at 450 nm.Content of sample was calculated by comparison with the known concentration of glutaral.RESULTS In the range of 0.75-2.50%,concentration of glutaral had linear relationship with the optical density value.Reproductive test:relative average error was within 2%,RSD≤2.51%;interference test:oxidation-resistant-sodium nitrite could make the result negative error.0.1% Sodium nitrite could make the test result decrease by 1.5% relatively.CONCLUSIONS The method is simple,fast and convenient,with accuracy which has met the requirement of hospital infection monitoring and acceptable interfering range made by additives,which is highly practical.

Objective To investigate the relation of contrast-enhanced ultrasound ( CEUS ) characteristics and microvessel density ( MVD ) in the breast cancer .Methods From October 2010 to February 2012, 45 cases of patients with breast cancer were studied in Yantai Yuhuangding Hospital , Affiliated to Qingdao University Medical College .All lesions were examined by CEUS before surgery .The blood perfusion parameters such as rising time (RT),peak intensity(PI),time to peak(TTP),wash-in slope (WIS) and mean transit time ( MTT) were obtained by time-intensity curve ( TIC).Immunohistochemical staining for anti-factor CD34 was performed on surgery specimen and the MVD was evaluated .The CEUS characteristics and blood perfusion parameters between different MVD groups of breast cancer were compared.Results In 45 cases of breast cancer,mean MVD was(47.6 ±14.2)/high power field(HPD). Twenty-one cases(46.7%) were classified as high MVD group(MVD>48/HPD) and 24 cases(53.3%) were classified as lower MVD group ( MVD≤48/HPD) .Besides two cases without contrast agent perfusion in CEUS imaging, blood perfusion was observed in 43 cases (95.6%).Heterogeneous enhancement was observed in 25 cases(55.6%).Local blood perfusion defect was observed in 27 cases(60.0%).Irregular shape was observed in 37 cases(82.2%).Centripetal enhancement was observed in 25 cases(55.6%). Penetrating surrounding vessels was observed in 32 cases(71.1%).Poorly-defined margin was observed in 34 cases(75.6%).Compared with the surrounding normal breast tissue ,RT and TTP of center region of neoplasms was shorter[(9.3 ±3.3)s vs (11.1 ±3.7)s and (25.3 ±5.9)s vs (27.5 ±6.4)s],PI was higher[(12.1 ±4.6)dB vs (9.2 ±2.8)dB],WIS was higher(1.0 ±0.4 vs 0.8 ±0.3) and differences were significant(t =-3.001, -4.785,6.987 and 5.438,all P <0.05).Compared with center region of neoplasms,TTP of periphery region of neoplasms was shorter [(22.2 ±6.0)s vs (25.3 ±5.9)s],PI was higher[(15.4 ±5.1)dB vs (12.1 ±4.6)dB],WIS was larger(1.3 ±0.5 vs 1.0 ±0.4) and differences were significant(t=-2.839,3.194 and 3.151,all P<0.05).The detection rate of blood perfusion defect and heterogeneous enhancement was higher in the high-MVD group than in the low-MVD group(χ2 =4.0179 and 7.2024,both P <0.05).While the enhancement shape,margin and penetrating vessels showed no statistical difference between the two groups .Breast neoplasms in the high-MVD group had higher PI than those in the low-MVD group[(18.2 ±5.6)dB vs (12.9 ±3.1)dB,t=-3.738,P<0.05].While the RT, TTP and WIS showed no statistical difference between the two groups ( t=-0.798,-0.760 and -0.378, all P>0.05).Conclusion CEUS characteristics of breast lesions were associated with MVD ,which may reflect the microvessel distributional characteristics of neoplasm and may be one of bases used to evaluate neoplasm angiogenesis .

Abstract: Objective　To understand the distribution and drug resistance of bacteria in clinical blood culture specimens in Ningxia in recent years, and to provide a basis for the prevention and treatment of bloodstream infection diseases. 　　　Methods　The blood culture isolation bacteria and drug resistance of Ningxia bacterial resistance monitoring network hospitals from 2018 to 2020 were statistically analyzed by WHONET5.6 software. Results　In the past three years, a total of 6 757 strains of bacteria were isolated from blood samples, including 3 697 strains (54.7%) of gram-negative bacteria and 3 060 (45.3%) of gram-positive bacteria. Among the gram-negative bacteria, Escherichia coli (2 074 strains,30.7%), Klebsiella pneumoniae (696 strains), Pseudomonas aeruginosa (139 strains), and Acinetobacter baumannii (121 strains). Among the gram-positive bacteria, coagulase-negative Staphylococcus (1 691 strains,25.0%), Staphylococcus aureus (442 strains), Streptococcus spp. (431 strains), Enterococcus spp. (379 strains). Resistance to Escherichia coli and Klebsiella pneumoniae was 56.6% and 22.6% against third-generation cephalosporins, and resistance to carbapenems was 1.0% and 3.7%, respectively. Pseudomonas aeruginosa and Acinetobacter baumannii were resistant to carbapenems at 9.0%（12/139） and 80.7%（71/121）. Methicillin-resistant Staphylococcus aureus (MRSA) was detected at 26.8%, methicillin-resistant coagulase-negative Staphylococcus was detected at 70%, and no Staphylococcus bacteria resistant to vancomycin and linezolid were found. For three years, only 1 strain of vancomycin-resistant Enterococcus faecalis was detected, and no linezolid-resistant Staphylococcus and Enterococcus were detected. Conclusions　Ningxia clinical blood specimen isolates of Escherichia coli, coagulase-negative Staphylococcus, and Klebsiella pneumoniae are more common. Among them, the resistance rate of Escherichia coli and Klebsiella pneumoniae to the third generation of cephalosporins is relatively stable, and the resistance rate to carbapenems is low. Acinetobacter baumannii is highly resistant to carbapenems, and methicillin-resistant Staphylococcus aureus detection rates are on the rise and should be closely monitored.

OBJECTIVETo observe the effects of Dachengqi Granule (DCG) in the recovery of gastrointestinal function and the condition of patients in the perioperative period of total laparoscopic hysterectomy.

METHODSTwo hundred and one patients received total laparoscopic hysterectomy were assigned to 2 groups, the treated group (103 cases) was orally administered DCG twice, 9 g at 4:00 pm, one day before operation and 6 g at 16 h after operation, while to the control group, enema with 400 mL of soap solution at 8:00 pm one day before operation and acupoint ST 36 injection with 1 mL neostigmine at 16 h after operation were given.

RESULTSTotal laparoscopic hysterectomy was accomplished successfully in all patients, no need to receive open abdominal operation, and with no post-operational complications. In the treated group, the operation time was (116.8 +/- 29.7) min, the operative blood loss was (141.6 +/- 25.1) mL, the post-operative temperature was (37.38 +/- 1.39) degrees C, while those in the control group were (119.6 +/- 28.4) min, (150.6 +/- 22.1) mL, and (37.55 +/- 0.43) degrees C, correspondingly, showing insignificant difference between the two groups (P > 0.05). The white blood cell count on the 1st day after operation was (11.18 +/- 2.93) x 10(9)/L in the treated group, and (12.57 +/- 3.55) x 10(9)/L in the control group (P < 0.01); time for post-operative aerofluxus in them was (35.66 +/- 5.72) h, and (41.77 +/- 6.06) h; time for post-operative defecation (48.47 +/- 18.97) h, and (54.81 +/- 21.30) h, respectively, all showed statistical difference between the two groups (P < 0.01 or P < 0.05).

CONCLUSIONAdministering DCG before and early after operation can effect better than pre-operational enema in ensuring the gynecological operation progression smoothly, and it could also promote the recovery of post-operational gastrointestinal function and improve patients' condition in the perioperative period.

Drugs, Chinese Herbal ; administration & dosage ; Enema ; Female ; Humans ; Hysterectomy ; Laparoscopy ; Neostigmine ; administration & dosage ; Perioperative Period ; Plant Extracts ; administration & dosage

OBJECTIVETo observe serum contents of granulocyte-macrophage colony-stimulating factor (GM-CSF) and granulocyte colony-stimulating factor (G-CSF) in mice with marrow inhibition before and after acupuncture and moxibustion treatment, so as to discuss the molecular biological mechanisms of acupuncture and moxibustion on improving marrow inhibition and increasing white cells after chemotherapy.

METHODSEighty clean-grade male Kunming mice were selected and randomly divided into a normal group, a model group, an acupuncture group and a moxibustion group according to the weight, 20 cases in each one. Mice in the model group, acupuncture group and moxibustion group were injected with cyclophosphamide (CTX) to establish mice models of marrow inhibition, while mice in the normal group received intraperitoneal injection of 0.9% NaCl. Four hours after model establishment, mice in the acupuncture group and moxibustion group were treated with acupuncture or moxibustion at "Dazhui" (GV 14), "Geshu" (BL 17), "Shenshu" (BL 23) and "Zusanli" (ST 36), respectively. Mice in the normal group and model group were immobilized without any treatment. All the treatment was given once a day for consecutive 5 days. Mice blood samples were collected from caudal vein. With manual examination, the white blood cells in peripheral blood were measured on each day from model establishment to end of treatment. Enzyme linked immunosorbent assay (ELISA) method was used to measure the serum contents of GM-CSF and G-CSF 3 days and 5 days after treatment.

RESULTSCompared with the normal group, the white cells in the model group were all reduced at each time point (all P<0.05), and the serum contents of GM-CSF and G-CSF were significantly reduced (all P<0.05). Three days after treatment, compared with the model group, the white cells in the acupuncture group and moxibustion group were increased, and the difference in acupuncture group was significant (P<0.05); the serum contents of GM-CSF and G-CSF were significantly lifted (P<0.05). Four days after treatment, compared with the model group, the white cells in the acupuncture group and moxibustion group were increased (both P<0.05). Five days after treatment, compared with the model group, the white cells in the acupuncture group and moxibustion group were increased and close to the normal level; the serum contents of GM-CSF and G-CSF were significantly lifted (all P<0.05).

CONCLUSIONThrough increasing serum contents of GM-CSF and G-CSF in CTX mice, acupuncture and moxibustion could prompt maturation and proliferation of myeloid hematopoietic cells, which is benefit to the reconstruction of hematopoietic function and relieve the marrow inhibition caused by CTX, and thus lift peripheral white blood cells.

Acupuncture Therapy ; Animals ; Bone Marrow ; drug effects ; Cyclophosphamide ; adverse effects ; Granulocyte Colony-Stimulating Factor ; blood ; Granulocyte-Macrophage Colony-Stimulating Factor ; blood ; Male ; Mice ; Moxibustion

Response Surface Methodology was applied to optimize the culture components for lipopeptide production by Bacillus natto TK-1. In the first step, two level factorial design of Plackett-Burman was used to evaluate the influence of six related factors. It showed that three factors playing the important roles in the medium, including peptone, yeast extract powder and CaCl_2. The path of steepest ascent was used to approach the optimal region of the fermentation conditions subsequently. In the third step, the concentrations of those three main factors were further optimized by using Box-Behnken and Response Surface Analysis. By solving the quadratic regression model equation, the optimal concentrations of the variables were determined as: peptone 1.73%, yeast extract powder 0.063 %, CaCl_2 1.385?10-4mol/L. Under the optimal culture conditions, the diameter of haemolysis zone increased 29.3 % than before. HPLC analysis showed the precise production of lipopeptide was 30.2% higher than preliminary culture. Furthermore, at three batches cultivation, the experiment values under the optimal conditions agreed with the predictive values. It showed that Response Surface Methodology was proper and a good choice for optimization.

Fermentation for Eicosapentaenoic Acid(EPA) production by Nitzschia laevis at various temperature between 10℃ and 30℃ was investigated and the dynamics characteristics during fermentation process were also analyzed.Based on the results,a varying temperature nursing method of two stage control strategy is proposed:During the first stage,which comprises the delay phase and the initial index phase,the temperature is maintained at 25℃;then the temperature is shifted to 20℃ and kept up till the end of the fermentation process.By this method,a EPA content of 6.0% and a yield of 291.60 mg/L have been gained.These are 24.07% and 18.81% higher than that of fixed temperature(25℃) fermentation,respectively.