Neuroneid
Neuroneid is a term used in neuroscience to describe a small, membrane-bound particle observed in neural tissue, proposed to participate in intercellular signaling. The concept emerged from studies of extracellular vesicles and unconventional messenger systems.
Neuroneids are typically 20–60 nanometers in diameter, spherical or irregular, with a lipid bilayer; their internal
They are thought to form within neurons by budding from endosomal compartments or through selective exocytosis
They are hypothesized to carry signaling cargo, including RNAs, microRNAs, and proteins that modulate synaptic strength,
The neuroneid concept is debated; some imaging and sequencing studies report particles consistent with neuroneids, while
If validated, neuroneids could illuminate mechanisms of synaptic plasticity, aging, and neurodegenerative disease, and might enable