Objective To detect the expression of DNA repair enzyme O6-methylguanine DNA methyl-transferase(MGMT),cell proliferation-related nuclear protein(Ki-67)and P53 protein in gliomas,and inves-tigate the relationship and clinical significance among them and gloma grade. Methods 61 cases of brain glio-ma specimes and 16 cases of internal decompression of brain trauma were used to detect the expression of MGMT,Ki-67 and P53 by using immunohistochemical SP method. Results MGMT protein expression (19. 67%∶0,χ2 =3. 729,P=0. 062),Ki-67 protein expression(39. 34% ∶0,χ2 =5. 722,P=0. 016)and P53 protein expression(27. 87% ∶0,χ2 =9. 146,P=0. 002)showed significant differences in gliomas com-pared to normal brain tissues,the expression of Ki-67 was significantly higher in high-grade gliomas(Ⅲ-Ⅳ) than that in low-grade gliomas(Ⅰ-Ⅱ)(14 ∶10,χ2 =11. 718,P =0. 001). No significant difference was found between the MGMT and P53. Conclusion MGMT protein can be used as a biomarker in gliomas detec-tion;Ki-67 has a positive correlation with tumor grade,and can be used as a reference indicator of pathological grade;P53 protein expression may be used as a potential target for the treatment of gliomas.

Objective To explore the character of the myelodysplastic syndrome(MDS) with autoimmune disorders (AID).Methods The clinical data of 60 MDS patients were reviewed.Results 5 of 60 MDS patients had AID ,of which 3 had Graves' disease.The commonest MDS was refractory anemia with ringed sideroblasts (RAS).Conclusion MDS might occur with Graves' disease.Humoral immunological abnormality might play an important role in MDS patients with autoimmune disorders and FAB types might not be associated with this.

OSCE is a new method which has strong objectivity for the evaluation of clin-ical skills examination.According to the actual situation of our college,we chose medicine sta-tion of OSCE to assess the level of the clinical skills of the clinical graduates.

Objective To isolate and identify the methicillin-resistant Staphylococcus aureus (MRSA) strains carrying Panton-Valentine leukocidin genes (pvl+-MRSA) from clinical samples and to further understand their molecular characteristics and infections caused by them.Methods Drug susceptibility test was performed to detect the drug resistance in 259 MRSA strains.pvl+-MRSA strains were screened out from those MRSA strains using cefoxitin slip test and mecA gene detection by PCR.Multiple PCR and multilocus sequence typing (MLST) were used for SCCmec and ST typing.Pulsed-field gel electrophoresis (PFGE) and cluster analysis were used to understand the genetic and epidemic features of the pvl+-MRSA strains.Different types of infections and diseases caused by the pvl+-MRSA strains were analyzed.ResultsAmong the 259 MRSA strains, 51 pvl+-MRSA strains were identified (19.7%, 51/259), of which 29 and 22 strains were respectively isolated from patients with community-acquired and hospital-acquired infections.ST59-SCCmecⅢ (35.3%, 18/51) was the predominant type of the 51 pvl+-MRSA strains, followed by ST59-SCCmecⅣ(25.5%, 13/51).But no predominant clone among those strains was revealed by the result of PFGE.Children, young-and middle-aged patients (≤44 years old) had a significantly higher positive rate of pvl+-MRSA than patients aged ≥45 years (P<0.05).Skin and soft tissue infection (47.1%, 24/51) was the most common disease caused by the pvl+-MRSA strains (P<0.05), followed by pneumonia (17.6%, 9/51).The pvl+-MRSA strains showed lower resistance to levofloxacin, gentamycin and rifampicine (7.8%-21.6%).No moxifloxacin-, nitrofurantoin-or linezolid-resistant pvl+-MRSA strains were identified.Conclusion The rate of pvl+-MRSA infection is high in the local population.ST59-SCCmecⅢ and ST59-SCCmecⅣ are the predominant types of pvl+ MRSA strains.Children, young-and middle-aged persons are the susceptible population.Skin and soft tissue infection and pneumonia are the common diseases caused by pvl+-MRSA.

Objective To explore diagnosisand treatment of intestinal obstruction by foodballs in children. Methods The clinical datum of 21 cases of intestinal obstruction by foodballs in children were retrospectively ana- lyzed.Results While admission,only 2 cases could provide the history of having eaten foodballs wholly which could not be digested easily.The characteristics of clinical manifestation were intestinal obstruction completely or incom- pletely.All 21 cases had been treated conservatively first,only one case was successful and the other 20 cases had been cured by surgery afterwords.Conclusion There is no specific feature in clinical manifestations of intestinal ob- struction by foodballs in children,so it is difficult to make the diagnosis,but it must be considered suspicious especial- ly for those from rural area and with simple intestinal obstruction with reasons not known yet.If conservative therapy is failure in a short period,an operation should be done immediately.During operation,it is necessary to examine the whole digestive system thoroughly.

Administration, Inhalation ; Animals ; Erythrocyte Count ; Erythrocytes ; drug effects ; Female ; Formaldehyde ; toxicity ; Hemoglobins ; analysis ; Male ; Mice

Adult ; Endoscopy ; Female ; Humans ; Maxillary Sinus ; Neurilemmoma ; surgery ; Otorhinolaryngologic Surgical Procedures ; methods ; Paranasal Sinus Neoplasms ; surgery ; Temporal Bone ; innervation

Objective To explore the changes in serum plasminogen activator inhibitor 1(PAI-1),tissue factor(TF) and antithrombin Ⅲ(ATⅢ) in early period of severe limb injury,and their relationship with the occurrence of traumatic pre-DIC and DIC after trauma.Methods Thirty-five patients were divided into severe injury group(AIS score ≥3,20 cases),minor injury group(15 cases),and 10 healthy subjects served as control.The 35 patients with injury were divided again into pre-DIC group(10 cases),DIC group(3 cases),and others(22 cases).Fasting peripheral venous blood was collected on day 1,3,6 from the patients and healthy subjects.The changes in TF,ATⅢ and PAI-1 levels were detected and statistically analyzed.Results The PAI-1 levels were higher in minor injury group and severe injury group than that in control group on day 1(P

Objective To study the effects of mild hypothermia on nervous cell apoptosis and activity of Caspase - 3 after hypoxia -ischemia brain damage (HIBD) in neonatal rats. Methods Seven - day SD rats were divided into sham operation group,normothermia HIBD group (HIBD group) and mild hypothermia HIBD group(mild hypothermia group). In HIBD group,the left carotid of rats was ligated and animals were exposed to 8% oxygen for 2 h.and in mild hypothermia group,hypothermia of 31 - 32 1C lasting 8 hours was used just after HIBD. L sing methods of TUNEL and AC - DEVI) - AMC, the apoptotic cell rate and Caspase - 3 activity level were determined in sham operated group, HIBD group and mild hypothermia group separatively. Results The apoptotic cell rate and Caspase - 3 activity level were significantly lower in sham - operated group and mild hypothermia group than those in HIBD group. Conclusion One of the mechanisms of brain protection by mild hypothermia may be contributed to the decrease of neural cell apoptosis and the activity level of Caspase 3 HIBD.

Multimedia teaching and SimMan,which is a portable and advanced patient simulator for team training,were used to develop a new course for the medical students of grade four. This course was named "SimMan clinical techniques training". The course of Sim-Man clinical techniques training can help students comprehend truly all kinds of cases in clinical practices,improve their capabilities of clinical thoughts and clinical techniques,and it makes fine basis for their clinical practices in the hospitals.