Our team has observed this exact progression across peptide research applications
Both these peptide species are trimmed at their N-term, and inactivated by the ubiquitous protease dipeptidyl-peptidase-IV (DPP-IV), found in the intestinal capillaries, vena porta and liver
PCR was conducted using PrimeSTAR Max DNA polymerase (Takara Bio) according to the manufacturers protocols
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Finally, there are other neurotrophic factors that have shown dopaminergical neuronal protection in Parkinson-like models, including hepatocyte growth factor (HGF), mesencephalic astrocyte-derived neurotrophic factor (MANF), cerebral dopaminergic neurotrophic factor (CDNF), granulocyte colony-stimulating factor (G-CSF), and platelet derived growth factor (PDGF-CC) [31-32, 135-136]