TY - JOUR T1 - Intracerebroventricular Injection of L-Proline Modifies Food Intake in Neonatal Chicks AU - , T. Haraguchi AU - , S. Tomonaga AU - , I. Kurauchi AU - , K. Hamasu AU - , H. Sato AU - , D.M. Denbow AU - , M. Furuse JO - Journal of Animal and Veterinary Advances VL - 6 IS - 11 SP - 1255 EP - 1257 PY - 2007 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2007.1255.1257 UR - https://makhillpublications.co/view-article.php?doi=javaa.2007.1255.1257 KW - L-Proline KW -food intake KW -feeding condition KW -intracerebroventricular injection KW -neonatal chick AB - Although, the central function of amino acids on food intake has been investigated, little information is available on the role of the amino acid L-proline. To clarify the central effect, several doses (0, 0.25, 0.5 and 1.0 mg) of L-proline were intracerebroventricularly (i.c.v.) injected into chicks under fasting (3 h) or ad libitum feeding conditions. Food intake was determined through 60 min post injection. Under fasting conditions, the following regression equation was obtained: food intake (g) = 3.047 + 3.496x – 5.332 x2 (x in mg of L-proline, R2 = 0.466, RMS = 1.056). Similarly, the regression equation was obtained under ad libitum conditions as follows: food intake (g) = 0.479 (SE 0.164) + 2.130 (SE 0.815)x – 2.452 (0.747)x2 (R2 = 0.313, RMS = 0.487). These results indicated that food intake was mildly stimulated by low levels of L-proline, but was suppressed by high levels in chicks. It is suggested that L-proline may act in the central nervous system to differentially regulate food intake, depending upon dose. ER -