[The role of histone acetylation in the basolateral amygdala in morphine-associated memory in rats].

To examine the regulatory effect of histone acetylation on memory related molecules, 34 healthy male SD rats were randomly divided into control and basolateral amygdala (BLA) intracranial positioning operation groups. In the process of conditioned place preference (CPP) training, Trichostafin A (TSA) was administrated by the route of BLA and morphine was injected into enterocoelia with dimethyl sulfoxide or saline as control. Expression levels of H3K14 acetylation and brain-derived neurotrophic factor (BDNF) in BLA were evaluated by Western blotting.

Touch DNA of shed skin cells from the deployed airbag to address drunken driving crimes.

In the criminal cases of driving under the influence (DUI), DNA evidence can be collected from the deployed airbag of the motor vehicle and submitted to the crime lab for touch DNA analysis. The evidence can be acquired when the skin cells are observed on the surface of the airbag in a traffic accident. However, the low quantity or quality of the evidence collected from a crime scene prevents further identification analysis in many cases.

The dopamine D1 but not D3 receptor plays a fundamental role in spatial working memory and BDNF expression in prefrontal cortex of mice.

Although dopamine within the prefrontal cortex has been implicated in working memory, how different dopamine receptor subtypes contribute to this process need to be further characterized. Previous studies have suggest the importance of dopamine receptors signaling in regulating the brain-derived neurotrophic factor (BDNF) function that is associated with synaptic plasticity underlying normal memory formation. Changes in BDNF expression through the dopamine receptors within the prefrontal cortex may accompany and mediate the spatial working memory.

[Genetic structure of X-STR loci in Bai, Dai and Yi ethnic groups and their affinity with five major populations of China].

To determine the genetic polymorphism of three X-STR loci for Bai, Dai, Yi ethnic groups from Yunnan Province, DXS6804, DXS6799 and DXS7132 were genotyped by multiplex PCR and Genscan. Eighteen alleles and thirty-eight genotypes were detected in 89 Bai unrelated persons. The gene frequencies ranged from 0.