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23,33 In one study, compared with 30-year-old men, 50-year-old men had a 22% lower sperm volume, 37% reduced sperm motility, and 18% fewer morphologically normal sperm

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This study was stopped early due to the frequency and magnitude of the elevation in ALT in the treatment group relative to controls, although none of the participants expressed symptoms of liver disease

PMCID: PMC3681106

Key observations include: Non-competing receptors: GHRH-R and GHS-R1a are distinct receptor systems Additive signaling: Simultaneous activation may produce greater GH release than either pathway alone Somatotroph priming: GHRP activation may enhance responsiveness to GHRH "The combination of GHRH and GHRP stimulates GH release synergistically through separate receptor-mediated mechanisms." Bowers, 2004 Why CJC-1295 + Ipamorelin Specifically

DSIP is studied in sleep-wake and stress-response pathway models