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L-lysine as adjunct...
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Wass, Caroline
(författare)
L-lysine as adjunctive treatment in patients with schizophrenia: a single-blinded, randomized, cross-over pilot study.
- Artikel/kapitelEngelska2011
Förlag, utgivningsår, omfång ...
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2011-04-18
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Springer Science and Business Media LLC,2011
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electronicrdacarrier
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LIBRIS-ID:oai:gup.ub.gu.se/140725
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https://gup.ub.gu.se/publication/140725URI
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https://doi.org/10.1186/1741-7015-9-40DOI
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ABSTRACT: BACKGROUND: Accumulating evidence suggests that the brain's nitric oxide (NO) signalling system may be involved in the pathophysiology of schizophrenia and could thus constitute a novel treatment target. The study was designed to investigate the benefit of L-lysine, an amino acid that interferes with NO production, as an add-on treatment for schizophrenia. METHODS: L-lysine, 6 g/day, was administered to ten patients with schizophrenia as an adjunctive to their conventional antipsychotic medication. The study was designed as a single-blinded, cross-over study where patients were randomly assigned to initial treatment with either L-lysine or placebo and screened at baseline, after four weeks when treatment was crossed over, and after eight weeks. RESULTS: L-lysine treatment caused a significant increase in blood concentration of L-lysine and was tolerated well. A significant decrease in positive symptom severity, measured by the Positive And Negative Syndrome Scale (PANSS), was detected. A certain decrease in score was also observed during placebo treatment and the effects on PANSS could not unequivocally be assigned to the L-lysine treatment. Furthermore, performance on the Wisconsin Card Sorting Test was significantly improved compared to baseline, an effect probably biased by training. Subjective reports from three of the patients indicated decreased symptom severity and enhanced cognitive functioning. CONCLUSIONS: Four-week L-lysine treatment, 6 g/day, caused a significant increase in blood concentration of L-lysine that was well tolerated. Patients showed a significant decrease in positive symptoms as assessed by PANSS in addition to self-reported symptom improvement by three patients. The NO-signalling pathway is an interesting, potentially new treatment target for schizophrenia, however the effects of L-lysine need further evaluation to decide its' potentially beneficial effects on symptom severity in schizophrenia. Trial registration: NCT00996242.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Klamer, Daniel,1976Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xklada
(författare)
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Katsarogiannis, Evangelos
(författare)
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Pålsson, Erik,1975Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xpaler
(författare)
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Svensson, Lennart,1952Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xsvenl
(författare)
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Fejgin, Kim,1978Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xfejki
(författare)
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Bogren, Inga-Britt
(författare)
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Engel, Jörgen,1942Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology(Swepub:gu)xenjor
(författare)
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Rembeck, Birgitta
(författare)
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Göteborgs universitetInstitutionen för neurovetenskap och fysiologi, sektionen för farmakologi
(creator_code:org_t)
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Ingår i:BMC medicine: Springer Science and Business Media LLC9:11741-7015
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