Understanding Neurogenesis and Neuritogenesis via Molecular Insights, Gender Influence, and Therapeutic Implications: Intervention of Nanomaterials.

Neurological disorders impact global health by affecting both central and peripheral nervous systems. Understanding the neurogenic processes, i.e., neurogenesis and neuritogenesis, is of paramount importance in the context of nervous system development and regeneration as they hold promising therapeutic implications. Neurogenesis forms functional neurons from precursor cells, while neuritogenesis involves extending neurites for neuron connections. This review discusses how these processes are influenced by genetics, epigenetics, neurotrophic factors, environment, neuroinflammation, and neurotransmitters. It also covers gender-specific aspects of neurogenesis and neuritogenesis, their impact on brain plasticity, and susceptibility to neurological disorders. Alterations in these processes, under the influence of cytokines, growth factors, neurotransmitters, and aging, are linked to neurological disorders and potential therapeutic targets. Gender-specific effects of pharmacological interventions, like SSRIs, TCAs, atypical antipsychotics, and lithium, are explored in this review. Hormone-mediated effects of BDNF and PPAR-γ agonists, as well as variations in efficacy and tolerability of MAOIs, AEDs, NMDA receptor modulators, and ampakines, are detailed for accurate therapeutic design. The review also discusses nanotechnology's significant contribution to neural tissue regeneration for mending neurodegenerative disorders, enhancing neuronal connectivity, and stem cell differentiation. Gold nanoparticles support hippocampal neurogenesis, while other nanoparticles aid neuron growth and neurite outgrowth. Quantum dots and nanolayered double hydroxides assist neuroregeneration, which improves brain drug delivery. Gender-specific responses to nanomedicines designed to enhance neuroregeneration have not been extensively investigated. However, we have specified certain gender-related variables that should be taken into account during the development of nanomedicines in an aim to improve therapeutic efficacy. Further research on gender-specific responses to nanomedicines in neural processes could enhance personalized treatments for neurological disorders, paving the way for novel therapeutic approaches in neuroscience.