PT-141 works at the neurological level, engaging the melanocortin pathways in the brain responsible for regulating libido
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In turn, phosphorylation of the adaptor proteins insulin receptor substrate 14 (IRS-14) and Shc leads to activation of the phosphatidyl inositol-3 kinase (PI3K), the mitogen-activated protein kinase (MAPK) and the 14-3-3 pathways (Baserga, 2000)
Additionally, while some may tolerate a high amount of caffeine, many will experience side effects, including hormone changes and sleep disturbance
doi: 10.1515/jbcpp-2013-0150
Findings on stress hormones are similarly mixed one study found DSIP reduced ACTH-like immunoreactivity without changing cortisol, while a separate infusion study found ACTH and cortisol responses nearly identical to placebo