Growth and Reproduction and Immune Traits of a New Intermediate Population of Enshi Black Pig

[Objectives] This study was conducted to illustrate the possible effects of heredity on the growth,reproduction and immune traits of Enshi Black pig.[Methods]The main growth,reproduction and immune traits of three populations( Goutou type,Shizitou type and an intermediate type between them) of Enshi Black pig were surveyed,and the correlations among these traits were analyzed.[Results]The health score of pregnant sows,average litter size and weight gain of piglets of intermediate type were all very significantly higher than those of Goutou and Shizitou types( P < 0.01).The percentage of lymphocytes of intermediate type was significantly higher than that of Goutou and Shizitou types( P < 0.05).The number of white blood cells( WBCs) and the number of neutrophils of intermediate type very were significantly higher than those of the other two types( P < 0.01).The percentages of CD3 + CD4 + double positive T cells( helper/inducer T lymphocytes) and CD3 + CD8 + double positive T cells( suppressor/cytotoxic T lymphocytes) and the CD4 +/CD8 + ratio( the ratio of helper T cells/suppressor T cells) of intermediate type were all significantly higher than those of the other two types.Correlation analysis showed that there was a very significant positive correlation between health score and litter size( P < 0.01,R = 0.336),a significant negative correlation between the percentage of lymphocytes and the number of neutrophils( P < 0.05,R =-0.733),and a significant correlation between the percentage of CD3 + CD8 + T cells and the number of platelets( P < 0.05,R = 0.700).[Conclusions] The intermediate type Enshi Black pig inherits the excellent traits of both Goutou type and Shizitou types,and thus has better growth,reproduction and immune traits than the other two types.

Reaction Time of Children with and without Autistic Spectrum Disorders

This study was conducted to evaluate and compare simple and choice reaction times for the comparison of perceptual-motor development levels found in children with and without autism. The participants of the study consisted of 24 children with autism and 10 typically developing (TD) children. Within the group of children with autism, only 10 were able to offer a full set data and four offered partial data. Data were collected through a computer-based procedure of reaction time test software, where the participant reacted by pressing a key on a laptop upon the appearance of one of the boxes turning yellow. Simple and choice reaction times appeared on the screen and were then recorded. The means and standard deviations were calculated for comparison and the data were evaluated from the results of a t-test. Significant differences were found among all reaction time tasks, whereas the group consisting of children with autism demonstrated slower reaction times and greater standard deviations compared with the typically developing/control group.

新型温敏性水凝胶在经导管动脉化疗栓塞中的应用进展

经导管动脉化疗栓塞术(transcatheter arterial chemoembolization,TACE)是目前抗肿瘤治疗常用的方法,手术的成功很大程度上依赖于栓塞剂的选择。温敏性水凝胶是一种具有特殊结构、温度刺激下的溶胶-凝胶相变及良好生物相容性的新型液体栓塞剂。文章就温敏性水凝胶的特点及其作为栓塞剂在TACE治疗中的应用进展进行系统总结和论述,并浅析了目前的挑战与前景。