Nocturnal increase in pineal melatonin production in two lemming species, Dicrostonyx hudsonius and D. groenlandicus

Russel J Reiter, Juan M. Guerrero, Celsa Santana

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Pineal N-acetyltransferase (NAT) activity and melatonin levels and thyroxine 5′-deiodinase (5′D) activity in brown adipose tissue (BAT) were compared during the day and night in two species of lemmings, Dicrostonyx hudsonius and D. groenlandicus. In both species, NAT and melatonin exhibited significant night-time increases in the pineal gland. Thyroxine 5′D activity in BAT did not show a statistically significant day-night difference in either species of lemming, suggesting the night-time rise in melatonin does not induce a similar increase in BAT 5′D.

Original languageEnglish (US)
Pages (from-to)322-325
Number of pages4
JournalGeneral and Comparative Endocrinology
Volume78
Issue number2
DOIs
StatePublished - 1990

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iodide peroxidase
Iodide Peroxidase
Arvicolinae
Brown Adipose Tissue
brown adipose tissue
melatonin
Melatonin
acetyltransferases
Acetyltransferases
thyroxine
pineal body
Pineal Gland
interspecific variation

ASJC Scopus subject areas

  • Endocrinology

Cite this

Nocturnal increase in pineal melatonin production in two lemming species, Dicrostonyx hudsonius and D. groenlandicus. / Reiter, Russel J; Guerrero, Juan M.; Santana, Celsa.

In: General and Comparative Endocrinology, Vol. 78, No. 2, 1990, p. 322-325.

Research output: Contribution to journalArticle

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