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The study in mice also found that treatment with Deltaran significantly decreased total spontaneous tumor incidence (by 2.6-fold), mainly mammary carcinomas and leukemias as compared with the control group

Extra caution and monitoring make sense here

Drug interactions represent another concern

C-peptide replacement, together with insulin, may represent a more physiological therapy for type 1 diabetes, targeting not only glycemic control but also the prevention of complications. Wahren et al., Diabetologia Closing Thoughts Once dismissed as a biological leftover, C-peptide is now recognized as a bioactive peptide with real therapeutic potential

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