This association is of strong clinical relevance because antidepr

This association is of strong clinical relevance because antidepressants can aggravate RLS.127 As regards PLMD (independently of the presence of RLS symptoms), it has been shown that patients had a high rate of past treatment for depression prior to the diagnosis of their sleep chemical information disorder (30%), although a clear association has not be found between the PLMS index and the

subjective complaints Inhibitors,research,lifescience,medical of disturbed sleep, daytime sleepiness, or a sense of awakening www.selleckchem.com/products/brefeldin-a.html refreshed in the morning.128 Previously, Mosko et al1 have also shown that patients with sleep-related periodic leg movements had high rates of self-reported depressive symptomatology. Change scores on the Profile of Mood States were obtained in this study when patients were placed on clonazepam, suggesting that the depression could be secondary to the sleep disturbance induced by the PLMS. Recently, Saletu et al129 found higher depression and anxiety scores on the Zung Self-Rating Inhibitors,research,lifescience,medical Scale than controls, while differences in quality of life did not reach the level of statistical significance, together with differences in electrophysiological brain function reminiscent of those of patients Inhibitors,research,lifescience,medical suffering from generalized anxiety disorder. Aikens et al130 determined patterns and relative intensity of psychopathology, as measured by the MMPI

among patients with OSAS, PLMD, and insomnia. Thirty-two percent of PLMD patients had current or prior history of depressive disorder. The occurrence of any MMPI elevation was more likely among patients

with PLMD compared Inhibitors,research,lifescience,medical with OSAS or psychophysiological insomnia patients. Differences emerged on the specific scales of depression, psychoasthenia, and schizophrenia. Thus, PLMD patients seem more likely to show a wide range Inhibitors,research,lifescience,medical of depressive symptoms, such as guilt, tension, and worry, as well as social alienation and diminished mental concentration, and are more prone to dysthymia accompanied by generalized anxiety and interpersonal detachment. Although the results do not address the question of whether these psychological patterns represent a cause or a consequence of sleep disorder, the authors suggest that psychopathology could be due to sleep disturbance secondary to limb movements, daytime AV-951 fatigue, and/or some other consequence of repetitive limb movement. This report conflicts with that of Zorick et al,131 who reported relatively low psychopathology rates in these patients. In fact, patients with nocturnal myoclonus had the lowest number of MMPI elevations compared with patients with sleep complaints related to a psychophysiological or psychiatric disorder. Circadian rhythm sleep disorders There is a subset of sleep disorders in which the etiology is primarily due to circadian dysfunction. Circadian rhythm sleep disorders may be categorized into extrinsic and intrinsic disorders.

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