Objective To observe the expression of Glu、mGluR 5 and EAAT 1 in bone tissues of ovariectomized osteoporotic rats and the effects of Total Flavonoids of Rhizoma Drynariae (TFRD) on it. Methods 45 SPF 3-month-old Sprague-Dawley (SD) female rats were randomly divided into sham operation (Sham, n=15) group and ovariectomized (OVX, n=30) group. The osteoporotic(OP) model was established by bilateral ovariectomy, 14 weeks later, we measured bone mineral density(BMD) by dual-energy X-ray and determined that OP model was successfully replicated, OVX group rats were then divided into OVX group (n=15) and OVX+TFRD group (n=15). The OVX+TFRD group was given TFRD for 12 weeks. Glutamate (Glu), metabotropic glutamate receptor 5 (mGluR 5), and Glutamate/Aspartate Transporter (GLAST/EAAT 1)’s expression of femur was examined in order to clarify the characteristics of bone glutamate signaling pathway and the effects of TFRD on it. Results Glu and ionotropic receptors mGluR 5 mainly distributed in bone marrow cells and osteoblasts closed to the bone marrow cavity walls. There were no significant differences in Glu expression among Sham group, OVX group and OVX+TFRD group. The mGluR 5 expression of OVX+TFRD group was significantly higher than that of Sham group and OVX group(P=0.009), while no significant difference was found between the latter two groups. In addition to large distribution in bone marrow cells, small amount of transporter EAAT 1 was noted to express in bone cells of the bone lacunae. There were no significant differences in EAAT 1 expression among the three groups. Conclusion In bone glutamate signaling pathway, this study demonstrated that TFRD could significantly improve the ionotropic receptor mGluR 5’s expression, but had no inlfuence for Glu and EAAT 1.

Objective To investigate the association of the polymorphism of the N-acetyltransferase 2 (NAT2 )gene with isoniazid-induced hepatotoxicity and anti-tuberculous treatment efficacy in Chinese Han patients with tuberculosis(TB).Methods A total of 108 TB patients who received initial anti-TB treatment were followed up prospectively.A polymerase chain reaction direct sequencing approach was used to detect genetic polymorphisms of the NAT2 gene.Associations between NAT2 genotype and isoniazid-induced hepatitis/early treatment were analyzed.Chi-square test was used for statistical analysis. Results Among the 108 TB patients, intermediate-acetylators (IA ) was the most frequent NAT2 genotype with the proportion of 54.63%(59/108).The proportion of rapid-acetylators(RA)was 33.33%(36/108),slow-acetylators (SA)was 10.19%(11/108)and super-rapid acetylators was 1 .85 % (2/108). Among the 20 patients who developed drug-induced hepatitis,2 were RA,5 were SA and 13 were IA. Regarding NAT2 genotype,RA patients had a lower incidence of hepatotoxicity (OR =0.176,95 %CI :0.038-0.809,P =0.014)and SA patients were more likely to developed drug-induced hepatic injury (OR=4.556,95 %CI :1 .231 -16.854,P =0.044 ).Statistical analysis revealed that the frequency of variant diplotypes,NAT2*4/*6A (OR=7.741 ,95 %CI :2.653-22.586,P <0.01 )and NAT2 *6A/*6A (OR=15 .353,95 %CI :1 .506 -156.552,P =0.020)were significantly increased in TB patients with hepatotoxicity.NAT2 *4/*4 was less likely to developed hepatic injury (OR =0.176,95 %CI :0.038-0.809,P =0.014).Among the 58 culture-positive patients,12(31 .03%)were persistent culture positive after 2 months standard therapy.Early treatment failure was observed with significantly higher incidence rate in RA than other genotypes (OR = 7.200, 95 % CI :1 .794-28.900, P = 0.008). Conclusions In Chinese Han TB patients,IA is the most frequent NAT2 genotype.The SA status of NAT2 is a risk factor of isoniazid-induced hepatotoxicity.The diplotype of NAT2 *6A has clearly high risk of isoniazid-induced hepatotoxicity.In contrast,NAT2 * 4/* 4 is protective diplotype.RA is associated with early treatment failure in culture-positive patients.

Objective To explore the method and management of pre-hospital care and raise the level of traffic injuries in pre-hospital care by summarizing the clinical features of death patients with severe tragic accident trauma Methods The basic data of 62 death patients with severe traffic accident trauma was analyzed according to death report statistics of severe traffic accident trauma from January 1st,2005 to December 31th,2008 Results Brain injury death accounted for most of traffic accident trauma death.The mortality rate of brain injury in the wounded wag 8.28%(13/157),but of asphyxia and hemorrhagic shock was 2.55%(4/157),3.18%(5/157)respectively in 2005.With the development of treatment and rescued in time, the mortality rate reduced to 6.11%(11/180),0,0.56%(1/180)in 2008.Conclesions It should be trying to shorten the time of pre-hospital care for pafients with trsffic accident trauma,especially in patients combined with hemorrhagic shock,asphyxia,severe brain injury.It is concluded that rapid and effective pre-hospital care can significantly reduce death rate and self-help or each other rescue training would also be effective to reduce mortality.

OBJECTIVE: To assess the relationship between the prognosis of the patients with diffuse traumatic brain swelling (DTBS) and the changes of the ventricles and the cisterns in CT scans. METHODS: The outcome of the patients with DTBS and the changes of the ventricles and the cisterns in CT scans were studied and analyzed in a group of 268 cases. We focused on the changes of the third ventricle and the basal cistern, age and Glasgow Coma Scale (GCS). RESULTS: Of 268 cases, there were changes of the third ventricle and/or the basal cistern in 124, 65 died. In l8 cases, the third ventricle and the basal cistern were both absent and l6 died (88.9%). The third ventricle changed significantly in 59 cases, 33 died (55.9%), while the basal cistern changed in 47 cases and 16 died (34%). Of the 124 patients with changes of the third ventricle and/or the basal cistern, 26 were children, 8 died; 98 adults, 57 died. CONCLUSIONS: For patients with DTBS, the outcome was in direct correlation with the change of the third ventricle and/or the basal cistern, the change of the third ventricle was much more important in assessment of the outcome than that of basal cisterns. There is no significant difference in, the incidence of DTBS between children and adults while the outcome of children is much better than that of adults. The patients with the changes of the third ventricle and the basal cistern accompanied with lower GCS scores have poor outcome.

Electroencephalography (EEG) signals are strongly correlated with human emotions. The importance of nodes in the emotional brain network provides an effective means to analyze the emotional brain mechanism. In this paper, a new ranking method of node importance, weighted -order propagation number method, was used to design and implement a classification algorithm for emotional brain networks. Firstly, based on DEAP emotional EEG data, a cross-sample entropy brain network was constructed, and the importance of nodes in positive and negative emotional brain networks was sorted to obtain the feature matrix under multi-threshold scales. Secondly, feature extraction and support vector machine (SVM) were used to classify emotion. The classification accuracy was 83.6%. The results show that it is effective to use the weighted -order propagation number method to extract the importance characteristics of brain network nodes for emotion classification, which provides a new means for feature extraction and analysis of complex networks.