Beyond systemic symptoms, vitamin B12 deficiency is also associated with a range of oral manifestations, including burning mouth syndrome, recurrent aphthous ulcers, mucosal inflammation, and trigeminal nerve-related pain, which are often underdiagnosed or misattributed to other conditions (Bao et al., 2021
i , Representative trace showing that 50 M GLP-1MK-801 acute bath application induces a depolarization of POMC neurons in ARC ( n = 6 of 17 neurons)
Following its entry into eukaryotic cells via the transport proteins SLC1A5 or SLC7A5, tryptophan is primarily subjected to three primary metabolic pathways: incorporation into protein synthesis, metabolism via the kynurenine (Kyn) pathway, or conversion through the serotonin pathway
Nat Med 2025
This transition is critical for the initial steps of metastasis [119]