Recent studies demonstrate that autistic spectrum disprders children have deficits in executive functiony, particularly the function referred response inhibition. The antisaccade task provides a new tool for direct evaluation of inhibitory function and a new way to explore the character of response inhibition in children with cognitive impairment. Researchers have used the technologies of eye movement to reveal the ability of oculomotor inhibition in children with autistic spectrum disprders, which is poorer than that of normal children.

The state of scale management,structure of hierarchy,professional institutions,educational system and degree,situation of academy and cost of medical education in developed countries was summarized in this article respectively to provide reference for our medical education reform.

Inflammation reaction and immune response are in-separable in the levels of system, tissue, cell and molecule. In-flammatory immune responses ( IIR) is proposed in this paper, which is defined a moderate or abnormal system responses of in-flammatory immune related cells in responding to the internal and external environment changes of body. It is described briefly that the research progresses of inflammatory immune cells ( e. g. , macrophages, dendritic cells, T cells and B cells, etc. ) and non-inflammatory immune cells ( e. g. , glial cells, endothe-lial cells, epithelial cells, fibroblasts, synovial cells and liver cells, etc. ) , and cytokines/receptor signal transduction in-volved in IIR. Moreover, the existing problems about regulating IIR drugs clinically are summarized. It is firstly put forward that soft regulation of inflammatory immune responses ( SRIIR) is a new direction of discovery and development of new drugs for the treatment of IIR related diseases.

Objective To compare the spray characteristics of domestic and foreign nasal spray delivery devices for live attenuated influenza vaccine(LAIV). Methods The particle size distribution(DV10,DV50 and DV90),the proportion of droplets smaller than 10 μm and Span of atomized particles of two brands of nasal spray delivery devices at home and abroad were measured by laser diffraction method,the spray pattern[maximum diameter(D_(max)),shortest diameter(D_(min))and ovality(D_(max)/D_(min))]and spray geometry(spray angle and width)were detected by Spray view,and the comparative analysis was performed. Results There was no significant difference in DV10,DV50,DV90 particle size distribution,proportion of droplets smaller than 10 μm and Span of atomized particles between the two kinds of domestic and foreign nasal spray delivery devices[F-values of Levene's test for equality of variances were 0. 622,0. 135,3. 067,0. 212 and 0. 058,P-values were0. 434,0. 714,0. 085,0. 647 and 0. 810,and significance(two-tailed)values of equal variances assumed were 0. 439,0. 228,0. 281,0. 539 and 0. 910,respectively];D_(max),D_(min)and ovality of the spray patterns showed no significant difference[F-values of Levene's test for equality of variances were 2. 102,2. 666 and 0. 514,P-values were 0. 158,0. 114 and0. 479,and significance(two-tailed)values of equal variances assumed were 0. 651,0. 407,and 0. 160,respectively];The geometric mean ratios of spray angle and width were 0. 92 and 0. 91,respectively,which ranged from 0. 90 to 1. 11.Conclusion Both the domestic and foreign nasal spray delivery devices meet the delivery requirement of the nasal spray LAIV,which can be used for the delivery of nasal spray vaccines and drugs.

Asia ; epidemiology ; Humans ; Non-alcoholic Fatty Liver Disease ; epidemiology ; Prevalence

Liver fibrosis is the excessive accumulation of extracellular matrix (ECM) proteins that occurs in most types of chronic liver diseases. Hepatic stellate cells (HSCs) are major sources of the excess ECM deposited in fibrotic liver. Transforming growth factor ? (TGF-?) is considered to play a generic role in the development of tissue fibrosis, as it stimulates the synthesis and deposition of ECM components. Smad pathways are central mediators of signals from the receptors for transfor- ming TGF-? to the nucleus. However, growing biochemical and developmental evidence supports the notion that non-Smad pathways also participate in TGF-? signalling. TGF-? signalling pathways play an important role in regulating tissue homeostasis and have been implicated implicated in diverse pathological conditions. It is oow our challenge to design ways of blocking the fibrosis-specific actions of TGF-? through downstream signalling pathways and mediators without compromising the other activities of this multifunctional cytokine, which is essential for health.

Hepatic fibrosis is the hallmark of most chronic liver diseases. Its essense is excessive deposition of extracellular matrix components(ECM) in liver, which occurs due to an imbalance between the production and degradation of matrix. Collagen is the most important part of ECM. Therefore,one important antifibrotic pathway is to effectively inhibit the synthesis of collagen or increase its degradation. The review describes the current progress in collagen metabolism and antifibrotic therapy related to hepatic fibrosis.

Extra-cellular signals, including T lymphoc ytes, cytokines,growth factors,interferons and neuropeptides, which could modulate matrix metalloproteinases expression in synoviocytes of rheumatoid arthritis(RA), are often mediated by G-protein-coupled Receptors (GPCR)-initiated signaling and mitogen-activated protein kinase (MAPK) cascades. Drug targets which aim at the extra-cellular signals or intra-cellular cascades is required for ameliorating inflammatory reaction and preventing joint destruction in RA.

Rheumatoid arthritis (RA) is an autoimmunity disease, and many effect factors contribute to the pathogenesis process of RA. Prostaglandin E_2(PGE_2) is one major inflammatory mediator. In this article ,we review the synthesis,metabolism and action pathway of PGE_2, the interaction between PGE_2 and inflammatory cellular factors of RA, and the therapeutic effect of drugs on RA.

Pharmacokinetics and pharmacodynamics constitute the foundation of modern pharmacology. PK/PD modeling is to profile the time process of pharmacological effects after a certain dosage is given. Investigating the relationship between PK and PD is helpful not only in instructing the clinical application, but also in the evaluation of new drugs and exploitation of new preparations etc. The present situation concerning the application of PK/PD modeling in the pharmacology,toxicology and development of new medicine is reviewed.