Objective:To prepare bifunction antibody of anti-human laryngocarcinoma/anti-CD 3 for the active immune therapy of laryngocarcinoma.Methods:To corss link monoclonal antibody of anti-human laryngocarcinoma and anti-CD 3 into bifunction antibody by chemical method,which can guide the killer function on carcinoma cells.Results:The killer rate of effector cells guided by bifunction antibody is higher than that of anti-CD 3 which can arise with the elevation of effect target ratio.Conclusion:Bifunction antibody of anti-human laryngocarcinoma/anti-CD 3 prepared by chemical cross linking method has the potential value for clinical application. [

OBJECTIVE To investigate the pathogen distribution and antimicrobial resistance in ventilator-associated pneumonia(VAP) in intensive care unit(ICU) of our hospital and provide reference for clinical treatment.METHODS Among 135 patients with VAP in ICU of our hospital,pathogens distribution and resistance rate from sputum culture were analyzed retrospectively.RESULTS Among 188 strains of isolated pathogens in 135 patients,the Gram-negative bacteria accounted for 74.5%,the Gram-positive bacteria 14.4% and the fungi were 11.2%.The predominant pathogens were Pseudomonas aeruginosa(19.7%),Stenotrophomonas maltophilia(18.6%),Klebsiella pneumoniae(16.0%),and Acinetobacter baumannii(14.4%),Staphylococcus aureus(10.6%),Candida albicans(9.6%).The percentage of meticillin-resistant S.aureus(MRSA) was 95.0% and no vancomycin-resistant S.aureus isolate was detected out.Sensitive antibiotics were cefoperazone/sulbactam,imipenem/cilastatin,fluconazole etc.CONCLUSIONS The multi-drug resistant Gram-negative bacilli are the main pathogens in VAP in ICU of our hospital.Cefoperazone/sulbactam and imipenem/cilastatin can be used as first empirical antibiotics for patients with VAP in ICU of our hospital.

Objective To investigate the epidemiological characteristics of occupational exposure to human immunodeficiency vi-rus (HIV) in Chongqing to provide the scientific basis for avoiding and reducing the HIV occupational exposures in the future . Methods All archival data of the exposed individuals came to our hospital for seeking post-exposure consultation and treatment during 2009-2012 were performed the classification and arrangement for conducting the descriptive analysis on the distribution characteristics of the age ,gender ,occupation ,working region ,exposure mode and severity of exposure .Results During this period , there were 135 cases of occupational exposure ,which ocurred in the medical institutions outside the main urban area (74 .18% ) , dominated by the nurses (57 .04% ) and doctors(33 .33% ) .21-30 years old (51 .85% ) and 31 -40 years old(33 .33% ) were the age groups with more occurrence of occupational exposure .The exposure routes were dominated by the sharp instrument injury (92 .59% ) and the exposure degree was mainly the secondary exposure ( 69 .63% ) .Conclusion The prevalence situation of HIV occupational exposure in Chongqing is stable in the total trend .The medical and health institutions outside main urban area should perfect the management system ,strengthen training ,put the standard prophylaxis principles to practice for reducing the occurrence of occupational exposure .

Objective To explore the effect of training course based on the model of practical performance which was designed to improve the humanistic caring ability of nursing postgraduates. Methods After conceived, designed and trained the nursing postgraduates, we combined quantitative research method and qualitative research method to understand the effect and the true feelings of the students after taking the training. Results “Humanistic Caring Ability of Nursing Undergraduates Assessment scale (HCANU)“was used before and after 22 nursing postgraduates accepted the training. After training, their total score (86.06±5.16) was higher than before (67.70±5.00) (t=2.665, P<0.01) and 8 dimensions scores were respectively higher than before(P<0.01 or 0.05). The course has improved the humanistic caring ability of nursing postgraduates, enhanced their empathy of nursing objects and promote self-reflection. Conclusions This training course based on the model of practical performance helps to improve the humanistic caring ability of nursing postgraduates and cultivate their humantistic quality.

Objective To evaluate the effects of peer-assisted learning (PAL) combined with peer feedback in the teaching of operating room nursing. Methods 80 undergraduate nursing students in grade 2012 were assigned to the experimental group (n=40) and control group (n=40) by random number table method. The content of this training is operating room nursing skills. Nursing students in the experimental group received peer-assisted learning combined with peer feedback teaching,while nursing students in the control group received conventional teaching. Results The students′examination scores of the experimental group was (92.25 ± 3.43) obviously higher than that of the control group (89.20 ± 3.55) U=609.500, (P < 0.05), the students' evaluation of the new teaching method was higher than that of the control group (t=-2.76--2.27, P<0.05 or 0.01). Conclusions Peer-assisted learning combined with peer feedback can improve the operational capability of the students in operating room, is helpful to stimulate students′subjective initiative and improve the teaching quality of nursing.

In order to explore the effects of metformin combined with cyproterone acetate (CPA) on the clinical features, endocrine and metabolism of the patients with polycystic ovarian syndrome (PCOS), 50 cases of non-obese PCOS were randomly subjected to CPA (CPA treatment group, n = 25) and CPA+ metformin (n = 25) treatment for 6 months. Before and after treatment the body mass index (BMI), waist : hip ratio (WHR), ovarian volume, serum gonadotrophin, androgen and sex hormone-binding globulin (SHBG) levels, and fasting lipid, glucose and insulin levels were measured. The results showed that all of the parameters in two groups were similar before treatment. After treatment for 6 months in the CPA+ metformin group, BMI and WHR were significantly decreased, while insulin sensitivity was significantly decreased as Compared with those before treatment. In CPA group, no significant changes were found before and after treatment. Combined use of CPA and metformin could result in the reduction of serum androstenedione and increases of serum SHBG levels as compared with the CPA treatment alone. It was concluded that combined use of CPA and metformin could improve the insulin sensitivity, and further suppress the hyperandrogenism in non-obese women with PCOS.
Androgen Antagonists/therapeutic use ; Androstenedione/blood ; Body Mass Index ; Cyproterone Acetate/*therapeutic use ; Drug Therapy, Combination ; Hypoglycemic Agents/*therapeutic use ; Insulin Resistance ; Metformin/*therapeutic use ; Polycystic Ovary Syndrome/*drug therapy

Objective To explore the effect of different temperature of the forced- air warming system on the prevention of hypothermia during laparotomy of infants. Methods A total of 60 infants undergoing laparotomy under general anesthesia were recruited and divided into three groups by random digits table method with 20 cases each according to admitting time; when used the force- air warming system intraoperatively, the three groups were respectively setting on 45℃(automatic adjustment for 43 ℃ after 45 minutes), 43 ℃ and 38 ℃.The core temperature were respectively recorded before anesthesia and 15, 30, 45, 60 minutes after anesthesia (every 30 minutes after 1 hour).The hypothermia incidence and anesthesia recovery conditions were recorded simultaneously. Results There was no significant difference on the core temperature among three groups before anesthesia (P > 0.05). 30 minutes after the anesthetic, the core temperature of 45 ℃ group was (36.31±0.20) ℃,43 ℃ group was (36.32±0.24) ℃ and 38 ℃ group was (36.08±0.21) ℃.The differences among three groups was statistically significant (F=8.12, P < 0.01), but there was no significant difference between 45 ℃ group and 43 ℃ group (P > 0.05). 60 minutes after the anesthetic, the core temperature of 45 ℃ group was (36.39±0.26) ℃,43 ℃ group was (36.19±0.22) ℃ and 38 ℃ group was (35.92±0.15) ℃. The differences among three groups was statistically significant(F=25.19, P<0.01).The hypothermia incidence of 45℃group, 43℃ group,38℃ group was 10.0%(2/20), 25.0%(5/20), 50.0%(10/20)respectively and the differences among three groups was statistically significant( χ2=8.04, P<0.05). The time to complete consciousness of 45 ℃ group was (15.40±5.09) minutes,43 ℃ group was (19.80±4.10) minutes and 38 ℃ group was (22.00±4.36) minutes. The differences among three groups was statistically significant (F=10.96, P<0.01). The time to tracheal extubation of 45 ℃ group was (18.10±5.97) minutes, 43 ℃ group was (21.85±4.02) minutes and 38 ℃ group was (24.90±5.54) minutes.The differences among three groups was statistically significant (F=9.83, P<0.01). Conclusions The forced-air warming system can increase the infants′peripheral tissue heat content and reduce the heat losing.So that it will help decrease the intraoperative hypothermia incidence and shorten the anesthesia recovery period.Meanwhile the higher temperature of the forced-air warming system is setted ,the better effect it is.

Objective To explore the effects of modified herringbone-Trendelenburg position during gynecological laparoscopic operation of the elderly. Methods A total of 60 elderly patients undergoing gynecological laparoscopic operation under general anesthesia were recruited and assigned to the observation group (30 cases) and control group (30 cases) by random digits table method with 30 cases each according to admitting time;Patients in the control group were placed in conventional Trendelenburg position, while the patients in the observation group were positioned in modified herringbone-Trendelenburg position .Intraocular pressure (IOP) were measured in the patients at anesthesia induction (T1),5 minutes after general anesthesia in supine position (T2) , and 5 minutes after pneumoperitoneum while in the operation position (T3) , every 30 minutes (times 4 to 11), while supine at the end of pneumoperitoneum (time 12) and before awakening (time 13);Patients were followed up at 24 h and 48 h after surgery, researcher investigate and record the scores of the Operation Position Comfort Questionnaire, the situation of the pain in the shoulder and postoperative complications of the lower limbs. Results There was no statistically significant difference (t=-1.098,-0.772,-0.656, P>0.05) of the IOP at T1, T2, T13. The IOP in the observation group had statistically significant difference compared with the control group at T3 to T12 (t=6.523-19.866, P<0.01). The incidence rate of the postoperative complications of the lower limbs in the observation group was 6.7%(2/30) lower than 26.7%(8/30) of the control group (χ2=4.320, P<0.05) and the VAS scores of the patients in the two groups was statistically significant (t=2.471, P<0.05). The incidence rate of the postoperative shoulder pain in the observation group was 10.0%(3/30) lower than 43.3%(13/30) of the control group (χ2=8.523, P<0.01), and the Visual Analogue Scale scores of the patients in the two groups was statistically significant (t=3.575, P<0.05).The scores of the Operation Position Comfort Questionnaire in the observation group was higher than the control group (t=-2.319, P<0.05). Conclusions Modified herringbone- Trendelenburg position can reduce the elevation of intraocular pressure in elderly patients without affecting the operation ,and effectively improve the comfort of the operation position of the patients, reduce the incidence rate of the shoulder pain and postoperative complications of the lower limbs, is conducive to the operation safety of elderly patients.

Objective:Observing the mechanism of apoptosis in the carcinoma of urinary bladder BIU 87 cell strain induced by staphylococcus enterotoxin A (SEA).Methods:The multiplicative inhibitory rate of the BIU 87 cell strain and cell cycle affected by SEA was tested with MTT colorimetry and low cytometry.Results:SEA restrain obviously the BIU 87 cell strain and have dosage dependence and obstruct the cell multiplication processes from G 1 period to S period.A crowd of cells was seen G 1 period.Conclusion:SEA having effect of cytotoxicity can make BIU 87 cell strain apoptosis and prevent the metastsis of the carcinoma of urinary bladder by pouring it into bladder.

Objective To explore the effect of triptolide(TL) combined with hyperthermia on proliferation and apoptosis of Hep-2 cells and its affect on cell cycle phases,and provide theoretical foundation for treatment of laryngocarcinoma.Methods Hep-2 cells at logarithmic growth phase were randomly divided into control,hyperthermia,TL,TL combined with hyperthermia groups.MTT method was adopted to investigate the proliferation inhibition rate of the Hep-2 cells.Cell cycle and apoptotic rate of Hep-2 cells were analyzed by flow cytometry,and then the changes of subcellular structures were observed by electron microscope.Results The proliferation inhibition rates in hyperthermia,TL,TL combined with hyperthermia groups were 21.2%,28.5% and 54.5%,respectively;the proliferation inhibition rate in TL combined with hyperthermia group was higher than those in hyperthermia and TL groups(P