Cells were seeded on collagen-coated plates (250 g/ml rat collagen, Roche) at a density of 150,000 cells/cm 2 and cultivated for 3 h in Williams E medium (PAN Biotech) containing penicillin (100 U/ml, Gibco), streptomycin (0.1 mg/ml, Gibco), gentamycin (10 M, PAN Biotech), dexamethasone (100 nM, Sigma), stable l-glutamine (2 mM, Sigma), insulin supplement (2 ng/ml, Sigma), and 10% Sera Plus (PAN Biotech)
ISBN 978-0-340-52393-3
The biochemistry surrounding bovine conceptus elongation
So, between the two methods of delivering GHK-Cu, topical vs injection, injectables may be an appealing option for those seeking a rigid peptide protocol that involves specific doses and tracking