Neuropeptidele

Neuropeptidele is a term used in speculative neuroscience to denote a hypothetical neuropeptide proposed to act as a neuromodulator in the mammalian central nervous system. It is not an established molecule in the peer-reviewed literature, and no experimental isolation or characterization is widely reported.

In theoretical models, Neuropeptidele is described as a short peptide, typically eight to twelve amino acids long, synthesized as a longer precursor in neurons and processed by proteolytic enzymes. Predicted to be secreted from dense-core vesicles in response to neuronal activity and to reach target cells via the extracellular space.

Mechanism of action in these models involves binding to a specific cell-surface receptor, most often proposed as a G protein-coupled receptor. Receptor activation would influence intracellular signaling cascades such as cAMP or Ca2+ signaling, ultimately modulating neuronal excitability and synaptic plasticity.

Putative functions include regulation of appetite, stress responses, learning, and memory, with effects dependent on the brain region and the receptor subtype involved. Some hypothetical scenarios also explore interactions with other neuropeptide systems.

Because Neuropeptidele lacks empirical validation, it remains a fictional or teaching example rather than a defined biochemical entity. Real-world neuropeptide research focuses on validated peptides such as neuropeptide Y, oxytocin, or substance P.