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However, using it during pregnancy may require doctors to consider its benefits and risks

P21 has similarly shown the ability to reverse dendritic and synaptic density loss caused by traumatic brain injury, restoring the physical architecture of neural connections that had been damaged

Chahardoli R, Saboor-Yaraghi A-A, Amouzegar A, Khalili D, Vakili AZ, Azizi F
Note that the FDA has approved many peptide drugs over the years more generally including insulin
