HOMER1 and Alzheimer disease: Urdánoz-Casado et al. reported that the expression of linear RNA Homer1 and circHomer1 (hsa_circ_0073,127, hsa_circ_0006916) was downregulated in the olfactory cortex of female AD patients, positively correlated with the expression of Homer1b/c protein, and negatively correlated with Aβ load, indicating that circHomer1 may play an important role in the early development of AD [27].