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Study breakdown

Factors Beyond Sex Steroids Modulate How GH Peptide Combinations Work in Men

evidence
The takeaway

GnRH agonist/testosterone clamp studies in men revealed that factors other than sex steroids (likely body composition, age, stress) modulate GHRH and GHRP-2 efficacy for GH release — multi-factorial GH regulation.

Key finding

GnRH agonist/testosterone clamp studies in men revealed that factors other than sex steroids (likely body composition, age, stress) modulate GHRH and

What the researchers found

GnRH agonist/testosterone clamp studies in men revealed that factors other than sex steroids (likely body composition, age, stress) modulate GHRH and GHRP-2 efficacy for GH release — multi-factorial GH regulation.

Why it matters

Relevant for peptide research.

How the study worked

research study.

What this study cannot tell us

See abstract.

How to read the evidence

emerging evidence.

When this study was published

Published in 2009.

The bigger picture

Advances peptide research.

Questions still open

  • Further research needed.

Common questions

What was studied?
Factors Beyond Sex Steroids Modulate How GH Peptide Combinations Work in Men
What was found?
GnRH agonist/testosterone clamp studies in men revealed that factors other than sex steroids (likely body composition, age, stress) modulate GHRH and GHRP-2 efficacy for GH release — multi-factorial GH regulation.

Read the original research

Factors other than sex steroids modulate GHRH and GHRP-2 efficacies in men: evaluation using a GnRH agonist/testosterone clamp.

The Journal of clinical endocrinology and metabolism, 94(7), 2544-50

Citation

Veldhuis, Johannes D; Bowers, Cyril Y. (2009). Factors other than sex steroids modulate GHRH and GHRP-2 efficacies in men: evaluation using a GnRH agonist/testosterone clamp.. The Journal of clinical endocrinology and metabolism, 94(7), 2544-50. https://doi.org/10.1210/jc.2008-2767