Insulin is a peptide for example, as are many widely used GLP-1 medications used for weight loss, according to Harvard
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animal liver and kidneys, clams, sardines, beef, tuna, salmon, milk, yogurt, and cheese
Moreover, in the lung, non-neuronal cells, known as neuroendocrine cells, synthesize and secrete neuropeptides
Retatrutide: Single-molecule triple agonist targeting GIP, GLP-1, and glucagon receptors simultaneously
NG2-glia in the perivascular space can themselves damage the BBB by disrupting astrocyte end-feet and the tight junction integrity of endothelial cells, leading to altered vascular permeability and related central nervous system inflammation [67]