Ion Exchange Chromatography in the Analysis of Brain-Derived DNA: Unravelling the Role of Ca²⁺ Channels in Neurological Disorders

Ion exchange chromatography has emerged as a powerful analytical technique for the separation and purification of nucleic acids, offering unique advantages for the analysis of brain-derived DNA samples. This comprehensive review examines the application of ion exchange chromatography in brain DNA analysis and its potential to elucidate the complex relationship between calcium (Ca²⁺) channels and neurological disorders. The review synthesizes current literature on the principles of ion exchange chromatography for DNA analysis, the critical role of Ca²⁺ channels in neuronal function, and the pathophysiology of Ca²⁺ channel dysfunction in neurological diseases. Key findings indicate that ion exchange chromatography provides superior resolution for separating DNA fragments and can effectively isolate specific genomic regions associated with Ca²⁺ channel genes. The technique's ability to separate DNA based on charge density and size makes it particularly valuable for analyzing brain-derived samples, which often contain complex mixtures of genomic and mitochondrial DNA. Evidence suggests that Ca²⁺ channel dysfunction underlies numerous neurological disorders, including epilepsy, Alzheimer's disease, Parkinson's disease, and various channelopathies. The integration of ion exchange chromatography with advanced detection methods offers promising avenues for identifying biomarkers associated with Ca²⁺ channel mutations and developing targeted therapeutic interventions. This review identifies critical gaps in current knowledge and proposes future research directions that could advance our understanding of Ca²⁺ channel-related neurological disorders through enhanced DNA analysis methodologies.