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The scientific basis for peptides in promoting muscle growth lies in their ability to directly affect muscle at the molecular level, often targeting receptors on cells or increasing hormonal levels, says Major Brandon Roberts, Ph.D., C.S.C.S
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All act through the GHS-R1a receptor on pituitary somatotroph cells to trigger GH release through a pathway distinct from growth hormone-releasing hormone (GHRH)
Peptide structure analysis reveals that selective residue substitutions strengthen intramolecular hydrogen bonding
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