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Serotonin content of the interscapular brown adipose tissue of growing rats
R Bertin1, I Mouroux, F De Marco
1Laboratoire d'Adaptation Energétique à l'Environnement, Ecole Pratique des Hautes Etudes, Paris, France.
Abstract:
In brown fat of newborn rats the serotonin (5HT) content is high during the first five days of life. This may play a part in the lipid repletion of the tissue, lipids being the main fuel for nonshivering thermogenesis. Subsequently 5HT increases more in young rats reared at 16 degrees C than in those reared at 28 degrees C but to a lesser extent than norepinephrine (NE) content. A possible role of 5HT in thermoregulation of the rat during the early postnatal period is discussed.