Neuroglobin is involved in neuroprotection from damage due to hypoxia or ischemia in vitro and in vivo.Overexpression of neuroglobin ameliorates the recovery from hypoxia-ischemia brain injury in experimental animals.The mechanism is still unknown.Studies have revealed that neuroglobin has a typical globin fold,and despite being hexacoordinated,which binds reversibly O2,CO2,and NO.This article reviews the possible mechanisms involved in neuroprotection of neuroglobin and provide a clue in treatment of hypoxia-ischemia brain injury.

Objective To compare the influence of three kinds of complete media with 0. 10 ,0. 15 ,0. 20 fetal bo-vine serum( FBS) on purity and cycle of rat bone marrow mesenchymal stem cells ( BMSCs) cultured in vitro and to seek suitable FBS concentration for the cultivation of the stem cells. Methods SD rats were executed by cervical dislocation method and used whole bone marrow adherence to isolate rat BMSCs. Experiment was divided into A, B,C,3 groups. Compared the expression of CD45, CD29, CD90, CD44 in the three groups in 2,3,4,5 passages ( P2 , P3 , P4 , P5 );the cells of P3 in group A were digested and cultured in three different concentration of com-plete culture media for four days, measuring cell cycle in 24,48,72,96 h by flow cytometry instrument. BMSCs of P3 were collected and inoculated to 6 pieces of 96-well plates, then vaccinated with complete media with 0. 10, 0. 15,0. 20 FBS in every plate, one culture plate was taken out for optical density(OD) meaturement every day with CCK-8. Results CD45 was negative, CD29, CD90, CD44 were positive. The difference of BMSCs surface markers cultured in the three kinds of complete media was bigger in the first two passages, but the difference was less in P3 , P4 , all could obtain pure BMSCs in P4 relatively;according to the results of the cell cycle at the same time, G0/G1 phase:with the increase of concentration of fetal bovine, G0/G1 phase reduced and had no diference in A, B, C groups;G2/M phase:there was difference between them after 24 h(P<0. 05,F=12. 412), but with the extension of time, the differences disappeared;S phase:there was no difference in the three groups;S+G2/M phase increased with the concentration of FBS. According to the result of cell vitality, the OD of ABC three groups increased in turn in 24 h, and there was difference(P<0. 05,F=5. 002), but with the extension of time, there was no obvious difference between them. Conclusion The three kinds of culture media in P4 can obtain pure BM-SCs, cell cycle and vitality show three complete media can promote the growth of BMSCs. There is no difference between them. Culture media with 0. 10 FBS can satisfy the isolation and amplification of BMSCs, in order to ob-tain pure BMSCs in the short term, using culture media with 0. 15 and 0. 10 FBS in the primary culture and subcul-ture respectively.

Objective To evaluate the efficacy of thracheal extubation-insertion of the nasopharyngeal airway for preventing the response to extubation under anesthesia in patients with hypertension. Methods Eighty ASA Ⅱ or Ⅲ patients with hypertension, scheduled for laparoscopic cholecystectomy under general anesthesia were randomly allocated into 2 groups with 40 patients in each group: tracheal tube group (group Ⅰ ) and tracheal tube-nasopharyngeal airway group (group Ⅱ). Anesthesia was induced with midazolam 0.05 mg/kg, sufentanil 0.4 μg/kg, cisatracurium besylate 0.15 mg/kg and propofol 2 mg/kg. The patients were tracheal intubated and mechanically ventilated. Anesthesia was maintained with TCI of propofol (target plasma concentration 3-4 μg/L) and sufentanil (target plasma concentration 0.2-0.4 μg/L). BIS was maintained at 40-50. Target plasma concentrations of propofol and sufentanil were adjusted to 1 μg/L and 0.1 ng/L respectively after operation and the infusion was stopped after recovery of breathing. In group Ⅱ, extubation was performed, and then the nasopharyngeal airway was inserted and oxygen was inhaled by mask, and the airway was removed after recovery of consciousness. In group Ⅰ , extubation was performed after recovery of cousciousness. The SP, DP, HR and SpO_2 were recorded immediately before anesthesia induction (T_0), immediately and 2 min after insertion of the nasopharyngeal airway (T_(1,2)), and immediately and 2 rain after removal of the tube or airway (T_(3,4)). The maximal value of SP (SP_(max)), DP (DP_(max)) and HR (HR_(max)) were also recorded during extubation. The differences in SP (△SP), DP (△DP) and HR (△HR) before and after extubation were calculated. The plasma concentrations of AD and NE were determined. The coughing and restlessness were observed. Results The SP, DP, HR and plasma concentrations of AD and NE were significantly higher at T_(3,4) in group Ⅰ and the SP, DP at T_(1,3,4) and HR at T_(2,3) were significantly lower in group Ⅱ than those at T_0 (P<0.05). The SP, DP, HR and plasma concentrations of AD and NE were significantly lower at T_(2-4) in group Ⅱ than in group Ⅰ (P<0.05). The SP_(max), DP_(max), HR_(max), △SP, ADP and △HR were significantly lower in group Ⅱ than in group Ⅰ (P<0.05). The incidence of coughing and restlessness was obviously lower in group Ⅱ than in group Ⅰ (P<0.05). Conclusion Thracheal extubation-insertion of the nasopharyngeal airway under anesthesia can effectively prevent the patients' response to extubation during emergence from anesthesia.

ObjectiveTo compare the efficacy of laryngeal tube-suction airway (LTSA) and SLIPA laryngeal mask airway (SLIPA) in obese patients undergoing laparoscopic cholecystectomy.MethodsSixty ASA Ⅰ or Ⅱ patients,aged 40-60 yr,with body mass index ＞ 30 kg/m2,undergoing laparoscopic cholecystectomy,were randomly into 2 groups ( n =30 each):group LTSA ( group Ⅰ ) and group SLI PA ( group Ⅱ ).Anesthesia was induced with target-controlled infusion (TCI) of propofol with the target plasma concentration (Cp) of 3-5 μg/ml and remifentanil (target Cp =4-6 ng/ml ).Rocuronium 0.6 mg/kg was injected intravenously as soon as the patients lost consciousness.LTSA and PLMA were inserted when BIS value was 50-60.HR,mean arterial pressure (MAP),SpO2,peak airway pressure(Ppeak) and PETCO2 were monitored during operation.Fiberoptic bronchoscopy was performed and the placement was scored.The placement time,the rate of successful placement at first attempt,airway sealing pressure,the failure of airway management and side effects were recorded.ResultsThere was no significant difference in HR,MAP,the fiberoptic bronchoscopy scores,the airway sealing pressure,and the incidence of side effects between the two groups.The placement time was significantly shorter in group Ⅰ than in group Ⅱ (P ＜ 0.05).The rate of successful placement at first attempt was more than 90％ and no failure was found in airway management in both groups.The SpO2,Ppeak,and PET CO2 were within the normal range during operation in both groups.ConclusionBoth LTSA and SLIPA can be safely and effectively used in obese patients undergoing laparoscopic cholecystectomy,however,LTSA placement is more easier.

Objective: To establish and authenticate the chloasma mouse model with syndrome of liver-qi stagnation,and compare it with other existent models.Method: After the injection of progesterone,chronically constrained them and gave them partially ultraviolet radiation.Results: Multiple models of progesterone injection and ultraviolet radiation compounding with chronic constraint can heighten MDA,depress SOD,and increase melanocytes of skin.Meanwhile,the ethology of this model showed it's syndrome of liver-qi stagnation.Conclusion: The multiple factor chloasma mouse model of liver-qi stagnation syndrome has been built successfully.

According to the characteristics of clinical probation teaching of endocrinology,we established the stage-separated echelon teaching mode that accorded with cognitive law.By inspiring,guiding and other methods,medical students’learning enthusiasm were greatly stimulated,and their understanding and grasping degree to the clinical specialty content was deepened.We focused on training clinical skills and thinking ability of medical students,and achieved satisfactory teaching results.

Objective To establish a HPLC method for determination of geniposide content in Qingkailing Capsule. Methods HPLC with Gracesmart C18 was used and detection wavelength was 238 nm with acetonitrile-water (15∶85) as mobile phase. The flow rate was 1.0 mL/min. Results The standard curve was linear over the range of 0.060 4～0.302 0 ?g (r=0.999 8). The average recovery was 98.73%, and RSD was 1.61%. Conclusion This method is reliable, accurate and suitable for the determination of geniposide in Qingkailing Capsule.

Objective To investigate the changes of vital signs and cerebral blood flow after sport in hyperthermal and heavy humid environment; and to investigate the effect of Urapidil on these changes. Methods 90 soldiers were divided into three groups: new soldiers group, new soldiers taking Urapidil group and veterans group(as group A,B,C). Their vital signs and cerebral blood flow were measured at quiescent condition in normal temperature and after their running for 3000m within 20 minutes in hyperthermal and heavy humid environment. Results Little difference was found among the three groups at guiescent condition in normal temperature. Whereas after exercise, there was significant elevation in body temperature, pulse, systolic pressure and cerebral blood velocity. On the other hand, a little decline in diastolic pressure was showed, but no obvious changes in pulsatility index(PI) following the exercise. Compared with group A, the average body temperature in group B was lower. The cerebral blood velocity in group C was faster and the PI showed lower. Conclusion Sport in hyperthermal and heavy humid environment could significantly affect vital signs and cerebral blood flow of human. The veterans had acquired better heat adaptation than the new soldiers. Urapidil played an important role in pharmacological hypothermia.

Objective To evaluate the effectiveness of scanning with labeled autologous leukocytes for the detection of abdominal inflammation in equivocal patients. Methods From July 1998 to April 2000 sixteen patients with equivocal abdominal inflammation were recruited into this study. ResultsThere were 10 cases with positive scanning. The diagnosis of intraabdominal infection was consequently confirned by laparotomy and or good response to antibiotic therapy.The 6 cases with negative result were eventualy proven to have no intraabdominal infection. The average radioactivity of imaging and paired non imaging district was determined ( P

After the evolution history of medical information science in China was briefed, the current situation in training master of information science was analyzed , the training programs in Huazhong University of Science and Technology , Central South University and Jinan University were compared , with certain suggestions put forward for the solution of problems in training master of information science .