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Abstract Title:

Bergamot Polyphenolic Fraction Supplementation Improves Cognitive Functioning in Schizophrenia: Data From an 8-Week, Open-Label Pilot Study.

Abstract Source:

J Clin Psychopharmacol. 2017 Aug ;37(4):468-471. PMID: 28591067

Abstract Author(s):

Antonio Bruno, Gianluca Pandolfo, Manuela Crucitti, Clemente Cedro, Rocco Antonio Zoccali, Maria Rosaria Anna Muscatello

Article Affiliation:

Antonio Bruno

Abstract:

BACKGROUND: Novel treatment strategies for cognitive dysfunctions may prevent long-term disability in patients with schizophrenia, and polyphenolic compounds might be a promising strategy. Bergamot (Citrus bergamia), a citrus fruit characterized by a high amount of flavonoids and flavonoid glycosides, may represent a potential nutraceutical approach to cognitive dysfunction. The present study was aimed to explore the efficacy of bergamot polyphenolic fraction (BPF) supplementation on cognitive/executive functioning in a sample of patients with schizophrenia receiving second-generation antipsychotics.

METHODS: Twenty outpatients treated with second-generation antipsychotics assumed BPF at an oral daily dose of 1000 mg/d for 8 weeks. Brief Psychiatric Rating Scale, Wisconsin Card Sorting Test (WCST), Verbal Fluency Task-Controlled Oral Word Association Test, and Stroop Color-Word Test were administered.

RESULTS: At end point, (week 8) BPF supplementation significantly improved WCST"perseverative errors"(P = 0.004) and semantic fluency test (P = 0.004). Moreover, a trend for other cognitive variable (WCST"categories,"phonemic fluency, and Stroop Color-Word Test) improvement was observed.

CONCLUSIONS: The findings provide evidence that BPF administration may be proposed as a potential supplementation strategy to improve cognitive outcome in schizophrenia. Further clinical trials with adequately powered and well-designed methodology are needed to better explore the BPF effectiveness on cognitive impairments in patients with schizophrenia.

Study Type : Human Study

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