Nicholas D Wignall

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Nicotine improves cognitive functioning in smokers and psychiatric populations, but its cognitive-enhancing effects in healthy nonsmokers are less well understood. Nicotine appears to enhance certain forms of cognition in nonsmokers, but its specificity to subtypes of cognition is not known. This study sought to replicate and extend previous findings on the(More)
OBJECTIVES Bipolar disorder is associated with a very high prevalence of alcohol-related disorders. However, few studies have examined treatment in this population. Preclinical research suggests a role for the flavonoid icariin in mood and addictive disorders. In this open-label pilot study, we investigated the feasibility and safety of using icariin for(More)
OBJECTIVE Previous research has suggested that depressive symptoms may be associated with telomere length; however, findings have been mixed, and few studies have sought to generalize the results beyond samples of white individuals. The present study, conducted from August 2013 through August 2015, sought to examine the relationship between depressive(More)
BACKGROUND Citicoline is a dietary supplement that has been used as a neuroprotective agent for neurological disorders such as stroke and dementia. Citicoline influences acetylcholine, dopamine, and glutamate neurotransmitter systems; serves as an intermediate in phospholipid metabolism; and enhances the integrity of neuronal membranes. Interest has grown(More)
The first case of human sparganosis in Canada is reported in a 23-year-old woman who emigrated from Greece in 1969. Examination of a ribbon-like worm removed from a painful swelling in the neighbourhood of her right biceps muscle revealed a single larva, about 110 mm. long and 2.5 mm. wide, subsequently identified as the plerocercoid larva or sparganum of a(More)
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