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However, not all clinical studies of TCM metabolites have been positive some trials have yielded neutral results, possibly due to suboptimal dosing, bioavailability issues, or patient population factors
Amino acids L-Arginine (A5131), L-Asparagine (A4159), L-Aspartic acid (A9256), L-Glutamic acid (G1251), L-Glycine (G8898), L-Lysine (L5626), L-Leucine (L8000), L-Isoleucine (I2752), L-Threonine (T8625), L-Tryptophan (T8941), and L-Valine (V0500) were obtained from Sigma
Regional brain iron associated with deterioration in Alzheimers disease: A large cohort study and theoretical significance