TY - JOUR
T1 - Control and function of the homeostatic sleep response by adenosine A 1 receptors
AU - Bjorness, Theresa E.
AU - Kelly, Christine L.
AU - Gao, Tianshu
AU - Poffenberger, Virginia
AU - Greene, Robert W.
PY - 2009/2/4
Y1 - 2009/2/4
N2 - During sleep, the mammalian CNS undergoes widespread, synchronized slow-wave activity (SWA) that directly varies with previous waking duration (Borbély, 1982; Dijk et al., 1990). When sleep is restricted, an enhanced SWA response follows in the next sleep period. The enhancement of SWA is associated with improved cognitive performance (Huber et al., 2004), but it is unclear either how the SWA is enhanced or whether SWA is needed to maintain normal cognitive performance. A conditional, CNS knock-out of the adenosine receptor, AdoA1R gene, shows selective attenuation of the SWA rebound response to restricted sleep, but sleep duration is not affected. During sleep restriction, wild phenotype animals express a rebound SWA response and maintain cognitive performance in a working memory task. However, the knock-out animals not only show a reduced rebound SWA response but they also fail to maintain normal cognitive function, although this function is normal when sleep is not restricted. Thus, AdoA1R activation is needed for normal rebound SWA, and when the SWA rebound is reduced, there is a failure to maintain working memory function, suggesting a functional role for SWA homeostasis.
AB - During sleep, the mammalian CNS undergoes widespread, synchronized slow-wave activity (SWA) that directly varies with previous waking duration (Borbély, 1982; Dijk et al., 1990). When sleep is restricted, an enhanced SWA response follows in the next sleep period. The enhancement of SWA is associated with improved cognitive performance (Huber et al., 2004), but it is unclear either how the SWA is enhanced or whether SWA is needed to maintain normal cognitive performance. A conditional, CNS knock-out of the adenosine receptor, AdoA1R gene, shows selective attenuation of the SWA rebound response to restricted sleep, but sleep duration is not affected. During sleep restriction, wild phenotype animals express a rebound SWA response and maintain cognitive performance in a working memory task. However, the knock-out animals not only show a reduced rebound SWA response but they also fail to maintain normal cognitive function, although this function is normal when sleep is not restricted. Thus, AdoA1R activation is needed for normal rebound SWA, and when the SWA rebound is reduced, there is a failure to maintain working memory function, suggesting a functional role for SWA homeostasis.
KW - Adenosine
KW - Cre-transgenic
KW - Delta
KW - Hippocampal function
KW - Memory
KW - Metabolism
KW - Sleep
KW - Working memory
UR - http://www.scopus.com/inward/record.url?scp=59649124268&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=59649124268&partnerID=8YFLogxK
U2 - 10.1523/JNEUROSCI.2942-08.2009
DO - 10.1523/JNEUROSCI.2942-08.2009
M3 - Article
C2 - 19193874
AN - SCOPUS:59649124268
SN - 0270-6474
VL - 29
SP - 1267
EP - 1276
JO - Journal of Neuroscience
JF - Journal of Neuroscience
IS - 5
ER -