Discussion IGF-1 Signaling (1 Viewer)

[paralyzed]

IGF-1–mediated growth is fundamentally driven by the GH–IGF axis, where pulsatile growth hormone (GH) secretion from the anterior pituitary stimulates hepatic and local production of insulin-like growth factor 1 (IGF-1). IGF-1 then acts in an endocrine, paracrine, and autocrine manner to promote chondrocyte proliferation and hypertrophy at the epiphyseal growth plates via activation of the PI3K–AKT–mTOR and MAPK/ERK signaling pathways. While insulin shares structural homology with IGF-1 and can cross-activate IGF-1 receptors at high concentrations, its primary role is permissive—facilitating nutrient uptake and indirectly supporting an anabolic environment rather than directly “forcing” longitudinal bone growth. Chronically elevated insulin (hyperinsulinemia) can actually dysregulate IGF-binding proteins (especially IGFBP-1 and IGFBP-3), altering IGF-1 bioavailability in complex ways rather than simply increasing growth. Crucially, longitudinal height increase is only possible while the epiphyseal plates remain open; once they undergo estrogen-mediated fusion, no amount of GH, IGF-1, or insulin signaling will induce further linear growth. Therefore, optimization of sleep-driven GH pulsatility, adequate protein and micronutrient intake (e.g., zinc, vitamin D), and overall metabolic health has a far more evidence-based impact on maximizing genetic height potential than attempting to artificially spike insulin levels.

 

[greysell]

IGF-1–mediated growth is fundamentally driven by the GH–IGF axis, where pulsatile growth hormone (GH) secretion from the anterior pituitary stimulates hepatic and local production of insulin-like growth factor 1 (IGF-1). IGF-1 then acts in an endocrine, paracrine, and autocrine manner to promote chondrocyte proliferation and hypertrophy at the epiphyseal growth plates via activation of the PI3K–AKT–mTOR and MAPK/ERK signaling pathways. While insulin shares structural homology with IGF-1 and can cross-activate IGF-1 receptors at high concentrations, its primary role is permissive—facilitating nutrient uptake and indirectly supporting an anabolic environment rather than directly “forcing” longitudinal bone growth. Chronically elevated insulin (hyperinsulinemia) can actually dysregulate IGF-binding proteins (especially IGFBP-1 and IGFBP-3), altering IGF-1 bioavailability in complex ways rather than simply increasing growth. Crucially, longitudinal height increase is only possible while the epiphyseal plates remain open; once they undergo estrogen-mediated fusion, no amount of GH, IGF-1, or insulin signaling will induce further linear growth. Therefore, optimization of sleep-driven GH pulsatility, adequate protein and micronutrient intake (e.g., zinc, vitamin D), and overall metabolic health has a far more evidence-based impact on maximizing genetic height potential than attempting to artificially spike insulin levels.

dnr, sounds dumb asf

 

[paralyzed]

dnr, sounds dumb asf

then maybe read it retard

 

[nineteen]

IGF-1–mediated growth is fundamentally driven by the GH–IGF axis, where pulsatile growth hormone (GH) secretion from the anterior pituitary stimulates hepatic and local production of insulin-like growth factor 1 (IGF-1). IGF-1 then acts in an endocrine, paracrine, and autocrine manner to promote chondrocyte proliferation and hypertrophy at the epiphyseal growth plates via activation of the PI3K–AKT–mTOR and MAPK/ERK signaling pathways. While insulin shares structural homology with IGF-1 and can cross-activate IGF-1 receptors at high concentrations, its primary role is permissive—facilitating nutrient uptake and indirectly supporting an anabolic environment rather than directly “forcing” longitudinal bone growth. Chronically elevated insulin (hyperinsulinemia) can actually dysregulate IGF-binding proteins (especially IGFBP-1 and IGFBP-3), altering IGF-1 bioavailability in complex ways rather than simply increasing growth. Crucially, longitudinal height increase is only possible while the epiphyseal plates remain open; once they undergo estrogen-mediated fusion, no amount of GH, IGF-1, or insulin signaling will induce further linear growth. Therefore, optimization of sleep-driven GH pulsatility, adequate protein and micronutrient intake (e.g., zinc, vitamin D), and overall metabolic health has a far more evidence-based impact on maximizing genetic height potential than attempting to artificially spike insulin levels.

water

 

[greysell]

then maybe read it retard

 

[paralyzed]

View attachment 43996

bro we all know those wensites arent accurate

 

[greysell]

bro we all know those wensites arent accurate

sure bro