Abstract
Neurological disorders, such as ALS, Alzheimer’s, epilepsy, Parkinson’s Disease, Autism, Atrial Fibrillation, and Sclerosis, affect the central nervous system, including the brain, nerves, spinal cords, muscles, and Neuromuscular joint. These disorders are investigated by detecting the genetic variations in Single Nucleotide Polymorphism (SNP) in Genome-Wide Association Studies (GWAS). In the human genome sequence, one SNP influences the effects of another SNP. These SNP-SNP interactions or Gene-Gene interaction (Epistasis) significantly increase the risk of disease susceptibility to neurological disorders.
The manual analyses of various genetic interactions related to neurological diseases are cumbersome. Hence, the computational system is effective for the discovery of Epistasis effects in neurological syndromes. This study aims to explore various techniques of statistical, machine learning, optimization so far applied to find the epistasis effect for neurological disorders.
This study finds several genetic interaction models involving different loci, various candidate genes, and SNP interactions involved in numerous neurological diseases. The gene APOE and its polymorphism increase Alzheimer's disease pathology. The gene GAB2 and its SNPs play a vital role in Alzheimer’s disease. The genes GABRA4, ITGB3, and SLC64A highly influence the genetic interactions for Autism disorder. In schizophrenia, the SNPs of NRG1 increase the disease risk. The benefits, limitations, and issues of the various computational techniques implemented for epistasis evaluation of neurological disease are deeply discussed.
Keywords: Epistasis, GWAS, genes, neurological disorders, genetic interactions, alzheimer, schizophrenia, bipolar.
Graphical Abstract
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