Neurogenetics describes research that contributes to better understanding of the genetic basis of normal and abnormal events of the nervous system. Neuro genetic pharmaceuticals is committed to the discovery, inventions and development of innovative drugs for the prevention and treatment of neuro-degenerative conditions such as Alzheimers disease. The neurogenetics laboratory uses a huge range of molecular genetic tools to help in understanding and knowledge of the genetic basis of neurological disorder. Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results. Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.