BDNF val66met Genotype and Age: Impact on Biomarkers and Exercise-based Treatment

描述（由申请人提供）：我们认为，本研究通过提供关于基因型（在本例中为BDNF基因型，包括val 66 met和来自另一种生长因子NGF的基因型）对脑组织转录谱、脑结构、神经认知和对基于运动的治疗的反应的影响的重要数据，充分告知了我们对衰老人类受试者行为变化的神经机制的理解。这种解释不仅是机械的，而且是完全平移的，因为它是从1开始的。通过对人类死后样本的微阵列分析确定的大约48000个皮质转录物中BDNF基因型调节表达模式的分子理解; 2.研究年龄x BDNF基因型对结构MRI和神经认知中神经解剖体积的影响，重点是情景记忆和内侧颞叶结构和情感调节;包括3.一项概念验证随机试验，检查体育锻炼（旨在增加BDNF表达）和BDNF基因型对认知终点的影响。如果这些研究中的预测是正确的，我们相信我们将有实用的、个性化的治疗方法来改善老年人群的记忆力

DESCRIPTION (provided by applicant): We believe that this study fully informs our understanding of neural mechanisms of behavioral change in aging human subjects by providing important data on the impact of genotype (in this case BDNF genotypes, including val66met and genotypes from another growth factor, NGF) on aging on transcriptional profiles in brain tissue, brain structure, neurocognition, and response to an exercise based treatment. This account will not only be mechanistic, but it will be fully translational in that it begins with 1. a molecular understanding of BDNF genotype modulate expression patterns in approximately 48000 cortical transcripts as determined by microarray profiling of human post mortem samples; 2. examines the impact of age x BDNF genotypes on neuroanatomic volumes in structural MRI and neurocognition with an emphasis on episodic memory and medial temporal lobe structures and affect regulation; and includes 3. a proof of concept randomized trial examining the impact of physical exercise (designed to increase BDNF expression) and BDNF genotypes on cognitive endpoints. If the predictions in these studies are correct, we believe that we will have practical, personalized treatments to improve memory in older populations