Do large purine repeat sequences play a role in transcriptional regulation of genes associated with neurological disorders?

Do large purine repeat sequences play a role in transcriptional regulation of genes associated with neurological disorders?. Himanshu Narayan Singh, Moganty R. Rajeswari, Gene, Available online 3 July 2015, ISSN 0378-1119, http://dx.doi.org/10.1016/j.gene.2015.07.007.