Eva Acosta-Peña

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Neuroglobin (Ngb), a protein located in the mammal's brain, is involved in oxygen transport and free radical scavenging inside the neurons. Ngb colocalizes with choline acetyltransferase in the laterodorsal tegmental nucleus and in the pontine tegmental nucleus, both involved in the sleep-wake cycle regulation. Some studies have shown that free radicals(More)
Sleep is a fundamental state necessary for maintenance of physical and neurological homeostasis throughout life. Several studies regarding the functions of sleep have been focused on effects of sleep deprivation on synaptic plasticity at a molecular and electrophysiological level, and only a few studies have studied sleep function from a structural(More)
Kuniomi Ishimori and Henri Piéron were the first researchers to introduce the concept and experimental evidence for a chemical factor that would presumably accumulate in the brain during waking and eventually induce sleep. This substance was named hypnotoxin. Currently, the variety of substances which have been shown to alter sleep includes peptides,(More)
It is well known that sleep deprivation impairs cognitive processes (Drummond & Brown, 2001; Nilsson et al., 2005; Smith et al., 2002), total time of rapid eye movements sleep (REM sleep) is increased after stress condition (Rampin et al., 1991), a brief nap during the day improves mood, memory consolidation and alertness during wakefulness (Backhaus &(More)
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