GRINA (Glia Derived Nexin): GRINA is a protein that represents a crucial element of the central nervous system, especially involved in neuroprotection and the regulation of neuronal excitability. It interacts with NMDA (N-methyl-D-aspartate) receptors, which are vital for synaptic plasticity, memory formation, and learning. The function of GRINA is tied to its capacity to modulate these receptors, impacting neurodevelopment and neural response mechanisms. Dysregulation of GRINA has been linked to neurological disorders such as Alzheimer's disease, epilepsy, and schizophrenia.