whereas food restriction increased the excretion of 3-methylhistidine into urine and the blood concentration of leucine , isoleucine , valine , tyrosine , phenylalanine , threonine , and glutamine , the oil-fed rats showed no increase of amino acid levels in plasma and no increase of 3-methylhistidine excretion into urine .
C0017797
glutamine
C0002520
amino acid