PsychedelicPeptide
Greenlighter
- Joined
- Jul 28, 2008
- Messages
- 721
Try getting a hold of IGF-1 and do injections as close as you can to the shoulder without hurting yourself.
Try getting a hold of IGF-1 and do injections as close as you can to the shoulder without hurting yourself.
Anyone on the board used any of the newer peptides?
I'm particularly interested in anyone with experience with CJC-1295, PEG-MGF or the HGH-176-191-Fragment.
These things just look toooo interesting![]()
Ask yourself this:
Why do you think CJC-1295 never made it to the market?
J Clin Endocrinol Metab. 2006 Dec;91(12):4792-7.
Pulsatile secretion of growth hormone (GH) persists during continuous stimulation by CJC-1295, a long-acting GH-releasing hormone analog.
Ionescu M, Frohman LA.
Section of Endocrinology, Metabolism, and Diabetes, University of Illinois at Chicago, 1747 West Roosevelt Road, Room 517, Chicago, Illinois 60608, USA.
Abstract
CONTEXT: Pulsatile GH secretion is considered important for many of the hormone's physiological effects. Short-term GHRH infusions enhance GH pulsatility and increase IGF-I, but the short GHRH half-life limits its therapeutic use. A synthetic GHRH analog (CJC-1295) that binds permanently to endogenous albumin after injection (half-life = 8 d) stimulates GH and IGF-I secretion in several animal species and in normal human subjects and enhances growth in rats.
OBJECTIVE: Our objective was to assess GH pulsatility after a single injection of CJC-1295 and determine which GH secretion parameters correlated to the increase in IGF-I production.
METHODS: GH pulsatility was assessed by 20-min blood sampling during an overnight 12-h period in healthy 20- to 40-yr-old men before and 1 wk after injection of either 60 or 90 microg/kg CJC-1295.
RESULTS: GH secretion was increased after CJC-1295 administration with preserved pulsatility. The frequency and magnitude of GH secretory pulses were unaltered. However, basal (trough) GH levels were markedly increased (7.5-fold; P < 0.0001) and contributed to an overall increase in GH secretion (mean GH levels, 46%; P < 0.01) and IGF-I levels (45%; P < 0.001). No significant differences were observed between the responses to the two drug doses. The IGF-I increases did not correlate with any parameters of GH secretion.
CONCLUSIONS: CJC-1295 increased trough and mean GH secretion and IGF-I production with preserved GH pulsatility. The marked enhancement of trough GH levels by continuous GHRH stimulation implicates the importance of this effect on increasing IGF-I. Long-acting GHRH preparations may have clinical utility in patients with intact pituitary GH secretory capability.
But the free peptide without that "DAC" modification, "mod GRF" as it is being called a lot is actually a pretty good GHRH analog. About the only problem it has is poor water solubility. Outside that its time of action in the bloodstream (before it starts to get degraded) of around 15-30 minutes is just about perfect to give it enough time to make it to the pituitary unscathed where its full receptor potency (another good thing) can be unleashed on those GHRH receptors without beating them to death over an entire day (unless you are one of these whack job bodybuilders hell-bent on taking it 3X a day for weeks on end ;P ).
On a side note, I think I was calling the "mod GRF" peptide the wrong thing (CJC-1293). If you look at the original paper by conjuchem you will see 1293 still has the DAC linker just one amino acid difference from 1295 (Met27). I had thought 1293 was the version without the DAC forever hah. Well anyways it ("mod GRF") is still a good peptide, hence why a lot of people are buying it.