Journal of Lipid Research, Vol 21, 600-607, Copyright © 1980 by Lipid Research, Inc.
Quantitative evaluation of gap junctions during development of the brown adipose tissue
G Schneider-Picard, JL Carpentier and L Orci
Gap junctions of rat brown adipose tissue (BAT) were studied with the
freeze-fracture technique during development. The frequency and the mean
area of gap junctions increased after birth, reached a maximal development
during the functional phase of the tissue (birth to 3--4 weeks) and
decreased while brown adipose tissue's function regressed (from 3--4 weeks
on). Gap junctional area per cell volume, an indirect estimate of
intercellular coupling, followed closely the phases of BAT activity,
suggesting an involvement of these junctions in the functioning of brown
adipose tissue.
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