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Table 1 Composition of the treatment mixtures

From: Acute tryptophan depletion dose dependently impairs object memory in serotonin transporter knockout rats

Substance Standard dose Low dose
Protein (Solugel P®) in 100 ml water 100 40
 Aspartic acid 4.8  
 Glutamic acid 10.3  
 Hydroxyproline 11.4  
 Serine 3.4  
 Glycine 23.2  
 Histidine 0.8  
 Arginine 10.0  
 Threonine 2.0  
 Alanine 10.4  
 Proline 12.0  
 Tyrosine 0.4  
 Valine 2.2  
 Methionine 0.7  
 Isoleucine 1.0  
 Leucine 2.5  
 Hydroxylysine 0.9  
 Phenylalanine 1.1  
 Lysine 2.9  
Carbohydrate (Glucodry 210) in 80 ml water 50 50
KCl 0.094 0.094
CaCl2·2H2O 2.32 2.32
l-tryptophan (TRP− groups) 0 0
l-tryptophan (TRP+ group) 0.28 0.28