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If you're running multi-peptide protocols, consider cycling them sequentially rather than simultaneously to isolate individual effects

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The combination of the amylin analogue pramlintide and the recombinant human leptin metreleptin caused significant weight reductions ( - 11.5kg) in comparison with monotherapy in a 24-week phase 2 clinical trial [248]
Its properties make it suitable for techniques such as HPLC, mass spectrometry, and other research-based analytical methods