Involvement of Thalamic Paraventricular Nucleus in the Anticipatory Reaction under Food Restriction in the Rat

Journal of Veterinary Medical Science

Noboru MURAKAMI¹  Kento FUKUI¹  Keiko NAKAHARA¹ 

[1] Department of Veterinary Physiology, Faculty of Agriculture, University of Miyazaki

关键词: circadian rhythm;    food restriction;    suprachiasmatic nucleus;   

DOI  :  10.1292/jvms.66.1297

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(19)Cited-By(29)To investigate which brain regions are involved in the anticipatory activity in rats restricted feeding for 2 hr, we examined c-Fos expression before and after feeding. Only the thalamic paraventricular nucleus (tPVN) showed c-Fos expression before feeding than after feeding. After the anticipatory locomotor activity rhythm was established, lesioning the tPVN attenuated this rhythm, but not the light-dark entrained rhythm. The anticipatory increase of blood corticosterone levels was not established in long-term tPVN-lesioned rats. These results suggest that the tPVN is involved in the expression of anticipatory reactions under a food-restricted regimen.

【 授权许可】

Unknown