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The first reaction is catalyzed by tryptophan hydroxylase (TPH-1), which requires L-tryptophan, tetrahydrobiopterin (BH4), and O 2 as co-substrates, and has ferrous ion (Fe 2+ ) as an activator
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View study Xiong Y, Mahmood A, Meng Y, et al
Collective data from major clinical trials have shown that treatment with a DPP-4i improves glycemic control by increasing insulin secretion from islet cells, lowering levels of HbA1c, reducing adipocyte size, and suppressing inflammation [47,48,49,50,51]
In a similar study ( Oxidative stress is one of the mechanisms underlying neuronal damage which may be caused by the acute brain ischemia (ABI) (140)
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