Source comparison
Pulsatile vs Sustained GH: Research Design Implications
The biological consequences of pulsatile vs sustained GH exposure are not equivalent. Pulsatile GH is more effective than continuous GH at stimulating hepatic IGF-1 production at the same total GH exposure — pulsatile GH receptor engagement produces greater ST
This comparison does not assign a generated winner or score.
- The biological consequences of pulsatile vs sustained GH exposure are not equivalent. Pulsatile GH is more effective than continuous GH at stimulating hepatic IGF-1 production at the same total GH exposure — pulsatile GH receptor engagement produces greater STAT5b transcription factor activation than continuous stimulation. Sustained non-pulsatile GH (as produced by rhGH or CJC-1295’s “bleed”) may produce relatively more GH receptor desensitisation in some tissues.
- For research questions where the pulsatile GH biology is specifically under investigation, CJC-1295’s sustained activity may be less appropriate than sermorelin or Modified GRF 1-29. For research questions where sustained GH axis activation is the experimental variable regardless of pulsatility, CJC-1295 offers the practical advantage of infrequent dosing.
- 🔗 Also See: Sermorelin UK Research Guide | Sermorelin vs HGH Comparison | Ipamorelin UK Research Guide