A novel mono-hierarchical muti-axiel classification coding scheme for medical image retrieval is proposed.The so-called MOAB coding scheme consists of four axes with three to four positions ranging from0to9,from A to Z.In particular,the modality code M describes imaging modality and relevant technical detail,and the orientation code O models examined body orientation.The anatomy code A refers to the body region examined and the biology code B describes the biological system examined.The MOAB classification-coding scheme enables a unique classifi-cation of medical images so that medical image retrieval can be efficient.The code is flexible and easy to be ex-tended.

Adult ; Antiretroviral Therapy, Highly Active ; Female ; HIV Infections ; drug therapy ; Humans ; Lamivudine ; administration & dosage ; Male ; Middle Aged ; Treatment Outcome ; Zidovudine ; administration & dosage

OBJECTIVETo study clinical effects of inversive LISS (less invasive stabilization system, LISS) plate combined with steel wire for the treatment of Seinsheimer type V subtrochanteric femoral fractures.

METHODSFrom January 2009 to Janurary 2012, 11 patients with Seinsheimer type V subtrochanteric femoral fractures were treated with inversive LISS plate combined with steel wire, including 8 males and 3 females, ranging in age from 35 to 61 years old (averaged, 51 years old). Causes of injury: 8 patients caused by accident and 3 patients caused by falling down. According to X-ray examination, all the patients were type V subtrochanteric femoral fractures and were treated with LISS plate combined with steel wire. Merle d'Aubigne scores were used to evaluate therapeutic effects on hip.

RESULTSThe mean period of follow-up was 16 months (ranged, 12 to 28 months). All the patients obtained bone union for average 3.8 months (ranged from 3 to 4.3 months). There were no complications such as deep infection,deep vein thrombosis, pulmonary embolism and bone nonunion. According to Merle d'Aubigne scores, 7 patients got an excellent result and 4 good.

CONCLUSIONInversive LISS plate combined with steel wire for the treatment of Seinsheimer type V subtrochanteric femoral fractures is satisfactory, Which can provide stable fixation for fracture end and provide an ideal internal fixation method for treatment of this kind of fractures in the future.

Adult ; Bone Plates ; Bone Wires ; Female ; Fracture Fixation, Internal ; methods ; Hip Fractures ; surgery ; Humans ; Male ; Middle Aged

Objective To investigate the effect of intratracheal instillation of curosurf on neonatal respiratory distress syndrome ( NRDS ) in children with right ventricular function.Methods 52 patients with NRDS were retrospectively selected and divided into two groups according to different treatment.The patients in the conventional group were treated with nasal airway ventilation.Based on the conventional group, the curosurf group was taken with curosurf.26 cases were in each group.The blood gas index (PaCO2, PaO2, pH), inflammatory reaction (TNF-α, IL-10), SF of the two groups were compared, the complications and curative effect of the two groups before and after treatment were taken for statistics.Results There was no significant difference in pH value between the two groups at each time point.The PaO2 expression levels in the curosurf group at different time points after treatment were significantly lower than the conventional group (P<0.05).The levels of TNF-αand IL-10 in the curosurf group were more stable than those in the control group at different time points after treatment (P<0.05), and the degree of SF increasing at different time points were higher (P<0.05).The total effective rate 80.77% of the curosurf group was significantly higher than that of the conventional group 61.54%(P<0.05).The total complication rate 19.24% had no significant differences with the conventional group 23.08%.Conclusion Intratracheal instillation of CsA in the treatment of NRDS has the advantages of simple operation, little side effect, rapid recovery of blood gas index and inflammatory factors, so it is a feasible method for clinical treatment of NRDS.

Our aim in this study was to determine differentially expressed genes of CD34 + cell from bone marrow and G CSF mobilized peripheral blood. CD34 + cells isolated from bone marrow and G CSF mobilized peripheral blood of the same donor were identified for differentially expressed genes in CD34 + cells using the technique of suppression subtractive hybridization. Eleven genes were expressed with higher levels in CD34 + cells from mobilized peripheral blood, as compared with data of GenBank. These genes included nuclear proteins, transcriptional regulatory molecules, zinc finger proteins and interferon induced molecules. These results demonstrate that there are some differences between the two groups of CD34 + cells. Further study would give us more extensive understanding about mobilization and homing of hematopoietic stem cells.

Objective To explore the effect and experience of problem-based (PBL) teaching in neurosurgical clinical training and improve the quality of the neurosurgical clinical training. Methods 600 clinical medical students of Grade 2011 in their probation in our department of neurosurgery were chosen as the subjects of study and were randomly divided into the experimental (PBL, 15 groups, 20 people/group, over 300 people) and control groups (CBL+ LBL, 15 groups, 20 people/group, over 300 people). In experimental group, PBL which is a problem-based, student-centered and teacher-directed pedagogy was adopted. In control group, CBL (case-based learning) + LBL (lecture-based learning) were adopted. After probation, two groups of students had the unified test and assessed their teaching methods by questionnaire survey and at the same time, the questionnaire survey about PBL' impact on the various aspects was done only to experimental group students. SPSS 15.0 software was used to do statistical analysis and data were processed by description analysis, t test, Mann-Whitney U test and correlation analysis. Results The scores of theoretical knowledge and general ability in PBL group [(40.57 ±3.24), (41.23 ±4.56) individually] were higher than these in control group [(37.21 ±4.05), (36.51±4.11) individually]. The differences demonstrated statistically meanings. Through the surveys, the students in experimental group showed the high satisfaction (97.0%, n=291) in PBL teaching. Most of the students considered that their abilities of team cooperation (96.7%, n=290), and self-directed learning (92.7%, n=278) were improved by PBL teaching. The students in experimental group illustrated their attitudes in satisfaction of teaching; interests of clinical training, participation of teaching and understanding of knowledge were superior to the control group. The differences demonstrated statisti-cally meanings. Conclusion PBL teaching got a good effect in neurosurgical clinical training. This method, which improved students' participation and motivation of study and contributed to the training of medical students' comprehensive abilities, is suitable for modern neurosurgical clinical training.

BACKGROUND: Puerarin functions to relieve the injury caused by ischemia reperfusion, improve the microcirculation, and inhibit the agglutination of platelet. But it is not clear yet that whether its protection on neurons relates to the apoptosis of cells.OBJECTIVE: To observe the protection of puerarin on neurons injured by mimic ischemia reperfusion in vitro.DESIGN: A random control study. SETTING: Laboratory of Biochemistry and Moleculobiology Department of Preclinical Medicine College of Tongji Medical College of Huazhong University of Science and Technology.PARTICIPANTS: The experiment was done on March 11, 2002. The cultured N2a cells of rat neuromablast were observed.METHODS: Ninety minutes after the cultured N2a cells were put into the 37 ℃ incubator with 0.05 CO2 and 0.95 N2(v/v), puerarin 0.5 mmol/L was added for cuiture for 24 hours. The methyl thiazolyl tetrazolium (MTT)method was used to observe the surviving ability of cells. The Annexin-V staining was adopted to exam the severity of apoptosis in the early stage and the supernate was collected to analyze the activity of lactate dehydrogenase (LDH) to reflect the permeability of cytomembrane. The immunoblotting method was applied to analyze the expression of caspase-3, at the same time, its activity was measured.MAIN OUTCOME MEASURES: The severity of cell apoptosis, the activity of LDH, the expression and activity of caspase-3.RESULTS: Puerarin could improve significantly the surviving rate of N2a cells 24 hours after reperfusion, decrease remarkably the activity of LDH in the culture fluid, lessen obviously the N2a apoptosis (P ＜ 0.01), at the same time, reduce tremendously the activity and expression of caspase-3 induced by ischemia reperfusion (P ＜ 0.01).CONCLUSION: Puerarin can protect nerves, inhibit obviously the N2a apoptosis induced by ischemia reperfusion. The mechanism is that it inhibits greatly the expression and activity of caspase-3.

Objective To investigate the application of noninvasive correction of congenital auricle defor-mity,and to analyze the cure rate and the causes of incidence of complications. Methods From January 2015 to December 2016,33 patients with unilateral or bilateral congenital auricle deformities were treated with non-surgi-cal correction technique in the Plastic Surgery Department of Guangzhou General Hospital. When the treatment was completed,the VAS score was used to assess the satisfaction of the patient's parents. Results From January 2015 to December 2016,33 patients(53 ears)received noninvasive treatment of the ear deformity correction system. The average age of the patients was(63.5 ± 41.3)days,the average treatment time was(41.6 ± 15.4)days,and the average parental satisfaction was 3.76 ± 0.93(total score:5 points). Significant difference was observedin auri-cle morphology data between pre- and post- treatment ,except for cranioauricular angle(P < 0.05). Conclusions In this study,the cure rate for non-surgical correction was good,however,the satisfaction of treatment decreased with age.The most common complication of treatment was auricle skin damage. The reasons of causing complica-tions maybe the age-induced reduction of ear cartilage elasticity which brought great pressure on the ear ,and the increase of the treatment time.

Objective To investigate the diagnostic values of color ultrasound to the stenosis of extracranial carotid arteries.Methods Color ultrasound examination and digital subtraction angiography(DSA)were performed in 145 patients with ischemic cerebravascular disease.The sensitivity and specificity of color ultrasound for the stenosis of extracranial carotid arteries were analyzed according to the golden standard of DSA results.Results The sensitivity and specificity of color ultrasound for stenosis of carotid bifurcation,subclavicular artery and vertebral artery were 96.8%,80.6%,60.0% and 98.7%,33.3%,89.0%.The accuracy of color ultrasound for stenosis of carotid bifurcation,subclavicular artery and vertebral artery were 93.0%,92.8% and 82.1%.Conclusion Color ultrasound examination are effective for the diagnosis of carotid bifurcation sterosis,and less effective for the diagnosis of the subclavicular and vertebral artery stenosis because of the poor sensitivity.

The fashion of innovative medical education prompted the teaching mode and teaching aims in medical colleges into fundamental innovation.In this paper,the authors have analyzed the advantages and disadvantages of talent training mode from medical colleges at home and abroad in the past few decades.The training mode for the innovative talents in the new period has been discussed.It includes the flowing aspects:the teaching aims,curriculum setup,teaching methods and education evaluation system.