Objective To observe the effects of controlled hypotension induced with remifentanil nitroglycer -in in endoscopic sinus surgery .Methods 60 ASAⅠ-Ⅱpatients treated with endoscopic sinus surgery were random-ly divided into 3 groups:general anesthesia(group A),nitroglycerin(group B),remifentanil nitroglycerin group(group C).The blood pressure,heart rate,the quality of the surgical field,surgical time,extubation time,blood loss and sur-geon satisfaction of the surgical field were observed during anesthesia .Results The operative time showed statistic significance between the groups (F=4.792,P<0.05).In terms of the extubation time,there was a statistically sig-nificant difference between the groups (F=37.507,P<0.01).The blood loss and the quality of the surgical field were statistically significant between the groups respectively ( F =16.011, P <0.01;F =71.050, P <0.01 ). Conclusion Controlled hypotension induced with remifentanil nitroglycerin in endoscopic sinus surgery can lower blood pressure effectively ,improve the quality of surgical field ,and shorten the operation time and the extubation time .

Objective To observe the ventilation effect of I-gel laryngeal mask in endoscopic thyroid surgery under general anesthesia. Methods A total of 60 cases of endoscopic thyroid surgery under general anesthesia, were randomly di?vided into 3 groups (n=20):the group that patients used endotracheal intubation (Group Q);the group that patients employed Supreme laryngeal mask (Group S);the group that patients wore I-gel laryngeal mask (Group I). Success rate of insertion, du?ration of insertion, endotracheal pressure of Group S and Group I worerecored, and fiberoptic bronchoscopy was performed in Group S and I to evaluate the position of laryngeal mask. Mean arterial pressure(MAP), heart rate(HR), pulse oxygen satura?tion (SpO2) at time points of before insertion (T0), 1 min after insertion (T1), 3 min after insertion (T2), before the establishment of CO2 operating space (T3), 30 min after the establishment of CO2 operating space (T4), 10 min after the resection of speci?mens (T5), 1 min before removal of laryngeal mask (T6) and 1 min after the removal of laryngeal mask (T7) were recorded and the end-tidal carbon dioxide pressure [ p(CO2) ]and peak airway pressure (Ppeak) form T1 to T5. were also recorded. Occur?rence of nausea and vomiting, sore throat and other adverse reactions after removal of laryngeal mask were also noted. Re?sults The successful rate of insertion was not significant different among all three groups. Compared with Group Q, inser?tion time was significantly shorter in Group I and S (P<0.05). Endotracheal pressure and fiberoptic bronchoscopy score are not statistically different between Group S and I. Compared with Group Q, MAP and HR in T1, T6 and T7 were significantly lower in Group S and I (P<0.05). SpO2,p(CO2) and Ppeak show no statistical difference between three groups. Compared with Group S and Q, the occurrence of sore throat, painful swallowing and bleeding which is indicated by the appearance of blood in laryngeal were all significantly lower in Group I (P<0.05). Conclusion Both I-gel laryngeal mask and Supreme laryngeal mask can be used safely and effectively in airway management of endoscopic thyroid surgery patients while I-gel laryngeal mask is less hurting and more comfortable than Supreme laryngeal mask.

Objective To observe the effects of different doses of dexmedetomidine combined with ropiva-caine for ultrasound-guided fascia iliaca compartment block on postoperative analgesia and rehabilitation in patients undergoing total hip replacement surgery. Methods 80 patients with ASAⅠ~Ⅱundergoing total hip arthroplasty were ramdonly divided into 4 groups. Records of patients with ultrasound guided fascia iliaca compartment block onset time,block fading time,VAS at 4 h,8 h,12 h,24 h,48 h;duration of operation,intraoperative remifent-anil and propofol requirement;24 h and 48h of sufentanil use;after the operation were recorded for the first time , ambulation time,hospitalization time and observe whether bradycardia,intraoperative awareness and other adverse reactions. Results Compared with group A and B,the onset time of C were shorter(P<0.05);the VAS was less (P<0.05);the remifentanil equirement was significantly was reduced(P<0.05);the amount of sufentanil after operation 24 h and 48 h was reduced(P<0.05);the first time out of bed time and total hospitalization time was shorter(P < 0.05);patient satisfaction increased(P < 0.05);The extubation time was significantly longer and the occurrences of tachycardia were significantly increased in group D compared to other groups respectively. Conclusion 1.0μg/kg dexmedetomidine combined with 0.3%ropivacaine ultrasound-guided fascia iliaca compart-ment block can provide better postoperative analgesic and recover rapidly with fewer side effects in total hip replace-ment surgery.

OBJECTIVE To type the genes of plasmid DNA in 54 clinical Klebsiella pneumoniae isolates producing extended -spectrum beta-lactamases (SHV) by denaturing high-performance liquid chromatography (DHPLc) and evaluate their sensitivity and specificity, and explore a rapid and convenient method for detecting the antibiotic resistance of K. pneumoniae. METHODS Plasmid DNA from each extended-spectrum beta-lactamase (SHV) producing strain was subjected to PCR amplification. After we performed DNA sequencing of these amplicons and identification of mutation and their genotype, DHPLc was undertaken to investigate whether its results correlate the distinctive chromatogram with each genotype. RESULTS All the strains were found abnormal elution peaks (two or three peaks) which were different from each other. The result of DNA sequencing demonstrated that all the strains had DNA mutation in comparison with SHV-1. Moreover, DHPLc could produce specific peak patterns that correlate with genotype. CONCLUSIONS The sensitivity of DHPLc is 100% in this study. And each genotype is corresponded to specific peak pattern. So we can use DHPLc technique to type the genes of plasmid DNA in K. pneumoniae and detect mutations rapidly. DHPLc not only has high accuracy , but also is a convenient and rapid technique for the detection of mutation in the bacterial genome. It has a great potential clinical value.

In clinical practice, the teachers should lead students to integrate the basic medical and clinical medical knowledge, and promote their comprehensive ability. Taking the department of gynaecology as an example, we learn from the analysis of specific practice that teachers need to pay attention to the reasonable conversion between doctors and teachers, strengthen their own basic medical knowledge reserves and teaching ability, strengthen the experience exchange with the teachers who teach basic course and give students clear interpretation of the relevant basic medical knowledge, pro-mote students to converse from basic medical skills to clinical skills, from theory to practical skills, and enable students to adapt to the role of interns as soon as possible.

Nine short tandem repeat (STR) markers (D3S1358, VWA, FGA, THO1, TPOX, CSFIPO, D5S818, D13S317, and D7S820) and a sex-identification marker (Amelogenin locus) were amplified with multiplex PCR and were genotyped with a four-color fluorescence method in samples from 174 unrelated Han individuals in North China. The allele frequencies, genotype frequencies, heterozygosity, probability of discrimination powers, probability of paternity exclusion and Hardy-Weinberg equilibrium expectations were determined. The results demonstrated that the genotypes at all these STR loci in Han population conform to Hardy-Weinberg equilibrium expectations. The combined discrimination power (DP) was 1.05 x 10(-10) within nine STR loci analyzed and the probability of paternity exclusion (EPP) was 0.9998. The results indicate that these nine STR loci and the Amelogenin locus are useful markers for human identification, paternity and maternity testing and sex determination in forensic sciences.
Amelogenin ; China ; Dental Enamel Proteins ; genetics ; Electrophoresis ; Ethnic Groups ; genetics ; Forensic Medicine ; methods ; Gene Frequency ; Genetics, Population ; Genotype ; Heterozygote ; Humans ; Polymerase Chain Reaction ; Polymorphism, Genetic ; Sex Determination Analysis ; methods ; Tandem Repeat Sequences ; genetics

Objective To investigate the effect of different pressure CO2 pneumoperitoneum on function of liver and kidney in patients undergoing laparoscopic gastrectomy.Methods A total of sixty pa-tients,aged 40-65 years,scheduled for elective laparoscopic gastrectomy were randomly divided into three groups (n=20).The pressures of CO2 pneumoperitoneum were set at 6-8,9-11 and 12-14 mm Hg in group L,group M and group H respectively.The venous blood samples before pneumoperitoneum (T1 ),1 hour after pneumoperitoneum(T2 ),2 hour after pneumoperitoneum (T3 ),1 hour(T4 )and 24 hours(T5 )after stopping pneumoperitoneum were collected for determination of serum concentrations of NAG,Cys-C, ALT,AST,Cr,BUN and the amount of urine.pH,PaCO2 ,PaO2 were recorded at T1-T4 .Results ALT, AST,Cr and BUN were not different at T1-T5 in the three groups.Compared with group L,the concentra-tion of NAG and Cys-C at T2-T5 were significantly higher in the group M and H (P <0.05).Compared with group L,the amount of urine at T2-T5 was significantly lower in the group M and H (P <0.05 ), PaCO2 was significantly increased in the group H and M at T2-T4 (P <0.05).Conclusion The pressure of 6-8 mm Hg CO2 pneumoperitoneum can alleviate the damage of function of liver and kidney in patients un-dergoing laparoscopic gastrectomy.

Objective To investigate the antitumor activity of the procaspase-3 activator SM-1 in BGC-823 cells in vivo and in vitro and the mechanisms.Methods The inhibitory effects of SM-1 on proliferation of BGC-823 cells were evaluated using MTT method, the cell apoptosis rate was detected by flow cytometry, and the expression of caspase-3 protein and procaspase-3 mRNA was detected by Western blotting and RT-PCR, respectively.SM-1 Antitumor activity was evaluated using the xenograft of BGC-823 cells in nude mice.Results SM-1 effectively inhibited the proliferation in vitro and in-duced apoptosis of BGC-823 cells in a dose-dependent manner.After treatment with SM-1 for 48 h, the protein expression levels of caspase-3 and mRNA expression levels of procaspase-3 were increased.SM-1 significantly inhibited growth of BGC-823 xenograft tumor at the 300 mg/kg dose and the inhibition rate was 56.3%(P<0.05).Conclusion SM-1 can significantly inhibit the tumor growth of BGC-823 cells in vivo and in vitro.The mechanism is possibly related to the activation of procaspase-3 and induced apoptosis of tumor cells.

Objective To investigate the effect of different pressure CO 2 pneumoperitoneum on early postoperative cognitive function in female patients undergoing gynecological laparoscopic sur-gery.Methods Ninety female patients,aged 40-60 years,ASA physical status Ⅰor Ⅱ,scheduled for elective gynecological laparoscopic surgery,were randomly divided into three groups (n = 30). The pressure of CO 2 pneumoperitoneum were set at 6-8,9-1 1 and 12-14 mm Hg in groups L,M and H,respectively.All of the patients were tested by the neuropsychology and questionnaire review to estimate whether the patient got cognitive decline at 24 h before the operation.The venous blood sam-ples 10 minutes before anesthesia (T1 ),at the end of surgery (T2 ),6 hours after surgery (T3 ),24 hours after surgery (T4 )and 72 hours after surgery (T5 )were collected for determination of serum concentrations of NSE and S100βprotein.The pH,PaCO 2 and PaO 2 were recorded before anesthesia (Ta ),before pneumoperitoneum (Tb ),1 hour after pneumoperitoneum (Tc ),2 hours after pneumo-peritoneum (Td )and 1 hour after stopping pneumoperitoneum (Te ).Results Scores of these tests in three groups were not different and there was no patient with cognitive decline after surgery.Com-pared with group H,the concentration of NSE at T2 and T3 was significantly lower in groups L and M (P <0.05).Compared with group H,the concentration of S100βprotein at T2 was significantly lower in groups L and M (P <0.05).Compared with group L,pH at Tc and Td was significantly decreased in groups M and H (P <0.05).Compared with group L,PaCO 2 was significantly increased at Tc-Te in groups M and H (P <0.05).Conclusion Different pressure of CO 2 pneumoperitoneum has no ob-vious effect on the early cognitive function,but low (6-8 mm Hg)CO 2 pneumoperitoneum can reduce the release of NSE and S100βprotein after operation.

Objective To establish the molecular weight distribution of anti-HBV placenta transfer factor injection (PSTF) by electrophoresis, HPLC and MS.Methods Using the methods of SDS-PAGE, HPSEC, MALDI-TOF-MS to test the molecular of PSTF.Results The Molecular was 8000 Da by SDS-PAGE.There were 5026.67,6783.44,7496.42,8736.55 Da components in PSTF by HPSEC.The main component molecular was 2972 Da and the maximum molecular component was 8194 Da.Conclusion HPSEC is simple and rapid to determine the maximum component molecular of PSTF.