Research is being conducted on the m.3243 A > G mtDNA mutation, with one study finding that the PI3K-Akt-mTORC1 pathway plays a role in sustaining this mutation. Other studies are exploring related topics, including the use of urinary epithelial cells for noninvasive diagnosis and the investigation of different mutations, such as the ZRS 406A>G mutation. The connection between these various studies and their findings is not entirely clear.