In addition to the hormones GIP and glucagon, other hormones such as estrogen, peptide tyrosine tyrosine (PYY), gastrin, xenin, and fibroblast growth factor 21 can be good candidates to pair with GLP-1 and create dual agonists that have anti-diabetic and anti-obesity effects
Health 49 WeiY.AnZ.ZouZ.SumpterR.SuM.ZangX.et al (2015)
Lastly, to minimize population stratification bias, we restricted the population in the summary data to individuals of predominantly European ancestry
10.3390/ijms24065093 64 LaurentT.MarkertM.FeihlF.SchallerM
It is short-acting, which means it works primarily during the injection window and does not sustain GH release throughout the entire day
There are no large clinical trials of injected GHK-Cu in humans