Title |
Nitric oxide modulates the hyperalgesic response to mechanical noxious stimuli in sleep-deprived rats
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Published in |
BMC Neuroscience, August 2013
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DOI | 10.1186/1471-2202-14-92 |
Pubmed ID | |
Authors |
Fabio Damasceno, Gabriela O Skinner, Paulo C Araújo, Marcia MD Ferraz, Frank Tenório, Olga MMS de Almeida |
Abstract |
Sleep restriction alters pain perception in animals and humans, and many studies have indicated that paradoxical sleep deprivation (PSD) promotes hyperalgesia. The hyperalgesia observed after mechanical nociceptive stimulus is reversed through nitric oxide synthase (NOS) inhibition. Both nitric oxide (NO) and the dorsolateral periaqueductal gray matter (dlPAG) area of the brainstem are involved in hyperalgesia. Thus, in this work, we investigated the pain-related behavior response after mechanical noxious stimuli (electronic von Frey test), and the activity of nicotinamide adenine dinucleotide phosphate diaphorase (NADPH-d), an indicator of NOS activity, within the dlPAG of paradoxical sleep-deprived rats. We also evaluated the effects of pre-treatment with L-NAME on these parameters. |
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