Effects of probiotics supplementation on dementia and cognitive impairment: A systematic review and meta-analysis of preclinical and clinical studies
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INVESTIGACIONMetadades
Títol
Effects of probiotics supplementation on dementia and cognitive impairment: A systematic review and meta-analysis of preclinical and clinical studiesAutoria
Data de publicació
2020-12-05Editor
ElsevierISSN
0278-5846Cita bibliogràfica
RUIZ-GONZALEZ, Cristofer, et al. Effects of probiotics supplementation on dementia and cognitive impairment: A systematic review and meta-analysis of preclinical and clinical studies. Progress in Neuro-Psychopharmacology and Biological Psychiatry, 2020, p. 110189.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.sciencedirect.com/science/article/abs/pii/S0278584620305054Versió
info:eu-repo/semantics/acceptedVersionParaules clau / Matèries
Resum
Background
Dementia is a chronic syndrome characterized by cognitive and behavioral symptoms, which may include short-term memory impairment and problems related to orientation, language, attention and perception. ... [+]
Background
Dementia is a chronic syndrome characterized by cognitive and behavioral symptoms, which may include short-term memory impairment and problems related to orientation, language, attention and perception. Although cognitive impairment (CI) is increasingly considered the main geriatric condition predisposing to dementia, its early management could still promote symptomatic relief and delay disease progression. Recently, probiotics treatment has been studied as a potential new therapeutic approach to attenuate dementia-related decline and mild cognitive impairment (MCI). Therefore, we conducted a systematic review and meta-analysis to review and analyse the available evidence on the effect of probiotics on MCI and dementia.
Methods
A systematic search and meta-analysis were performed on Cochrane Library, ProQuest, Web of Science, PubMed-Medline, The Cumulative Index to Nursing and Allied Health Literature (CINAHL), Scopus, ScienceDirect and Open Grey. Search terms included diagnoses of interest (dementia and MCI) and the intervention of interest (probiotic, lactobacillus and bifidobacterium). Original articles reporting the use of probiotics supplementation for the treatment of dementia and MCI were screened and studied independently by two researchers. After that, a random and fixed effects model was used at the meta-analysis stage of the results to determine its effect size.
Results
A total of 16 articles (10 preclinical and 6 clinical) that met the inclusion criteria for the systematic review, and 15 articles (10 preclinical and 5 clinical) for meta-analysis were finally included. In humans, the administration of probiotics improved general cognitive function after the treatment period. Similarly, an improvement in memory and spatial/non-spatial learning was identified in the probiotic group of animals compared to the control group. On the other hand, the results showed an increase in the levels of the brain-derived neurotrophic factor, an improvement in the inflammatory profile and regulation of cellular biomarkers after probiotics administration.
Conclusion
Probiotics supplementation could be an adequate therapeutic strategy both in dementia and CI based on clinical and preclinical evidence. However, it is therefore important to translate preclinical data into clinical data where the evidence is more limited. [-]
Publicat a
Progress in Neuro-Psychopharmacology and Biological Psychiatry. Available online 5 December 2020.Drets d'accés
Licencia CC-BY-NC-ND
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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