The pineal gland: a pacemaker within the circadian system of the house sparrow.

AUTOR(ES)

Zimmerman, N H

RESUMO

Transplantation of pineal tissue into the anterior chamber of the eye rapidly reestablishes rhythmicity in arhythmic pinealectomized sparrows and also transfers the phase of the donor bird's rhythm to the host. Thus, the transplanted pineal does not merely permit rhythmicity to be expressed but rather transfers an oscillation that controls the remainder of the circadian system and restores the capacity for self-sustained rhythmicity. Long-term recordings, during which sparrosw were exposed to various lighting conditions, demonstrate a remarkable similarity between the circadian system in normal birds and that in birds bearing pineal transplants.

Documentos Relacionados

• Ultrastructure of the angularis oris salivary gland in the house sparrow.
• Postnatal evolution of the rat pineal gland: light microscopy.
• Benign symptomatic glial cysts of the pineal gland: a report of seven cases and review of the literature.
• CONTROL OF THE CIRCADIAN RHYTHM IN SEROTONIN CONTENT OF THE RAT PINEAL GLAND
• Bimodal circadian secretion of melatonin from the pineal gland in a living CBA mouse