[Suspenseful music begins] This has always been true
The receptor itself couples to multiple G proteins (Gq/11, Gi/o, G12/13, and -arrestin), and different agonists can bias signaling toward different pathways (Overlapping binding site study, 2008)
[4] [5] References: Nsairat H, Khater D, Sayed U, Odeh F, Al Bawab A, Alshaer W
Critically important antimicrobials for human medicine: 5th revision
Additionally, it has been described that estrogens can regulate the differentiation of endothelial progenitor cells derived from bone marrow through mechanisms that include an increase in Akt phosphorylation and modulation of the telomerase activity, which consequently delays the onset of senescence (Imanishi et al., 2005)