title: Increase in the activity of phenylalanine-4-hydroxylase on hypobaric stress.
mesh_terms: D000818:Animals; D001274:Atmospheric Pressure; D008099:Liver / Q000201:enzymology*; D008297:Male; D010651:Phenylalanine Hydroxylase / Q000378:metabolism*; D051381:Rats
chemical_list: D010651:Phenylalanine Hydroxylase