Research Article: Synthesis and Characterization of a New Carbon- Labeled Positron Emission Tomography Radiotracer for Orexin Receptors Neuroimaging
Introduction:
Orexins (also known as hypocretins) are endogenous neuropeptides secreted by the hypothalamus, consisting of two subtypes: orexin-A and orexin-B. , These neuropeptides interact with G protein-coupled receptors, orexin receptor (OX R) and orexin receptor (OX R), , respectively, to regulate various physiological functions, including energy homeostasis, the sleep-wake cycle, stress response, and brain reward mechanisms. – Studies have highlighted the close association of orexin-signaling abnormalities with numerous…
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