Presence of the pineal hormone melatonin in rat cochlea: its variations with lighting conditions.

Abstract:

:Within the normal inner ear, there are elements that belong to the immune system. Different inner ear disorders can be explained by autoimmune mechanisms, affecting both humoral and cellular immunity. Melatonin, the principal hormone of the pineal gland, modulates the immune system and extensively participates in the autoimmune processes related to type II collagen. Therefore, we have studied the presence of melatonin in rat cochlea, proving that its concentrations change depending on lighting conditions. Rats show high levels when confined to darkness and low levels when subject to continuous light exposure. The results correlate with the concentration of melatonin in peripheral circulation. Further experimental and clinical studies are necessary to clarify the role and the possible therapeutic applications of melatonin.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Lopez-Gonzalez MA,Guerrero JM,Delgado F

doi

10.1016/s0304-3940(97)00844-6

subject

Has Abstract

pub_date

1997-11-28 00:00:00

pages

81-3

issue

1-2

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(97)00844-6

journal_volume

238

pub_type

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