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Effects of curcumin on short-term spatial and recognition memory, adult neurogenesis and neuroinflammation in a streptozotocin-induced rat model of dementia of Alzheimer's type.
Behav Brain Res. 2017 09 29; 335:41-54.BB

Abstract

Curcumin is a natural polyphenol with evidence of antioxidant, anti-inflammatory and neuroprotective properties. Recent evidence also suggests that curcumin increases cognitive performance in animal models of dementia, and this effect would be related to its capacity to enhance adult neurogenesis. The aim of this study was to test the hypothesis that curcumin treatment would be able to preserve cognition by increasing neurogenesis and decreasing neuroinflammation in the model of dementia of Alzheimer's type induced by an intracerebroventricular injection of streptozotocin (ICV-STZ) in Wistar rats. The animals were injected with ICV-STZ or vehicle and curcumin treatments (25, 50 and 100mg/kg, gavage) were performed for 30days. Four weeks after surgery, STZ-lesioned animals exhibited impairments in short-term spatial memory (Object Location Test (OLT) and Y maze) and short-term recognition memory (Object Recognition Test - ORT), decreased cell proliferation and immature neurons (Ki-67- and doublecortin-positive cells, respectively) in the subventricular zone (SVZ) and dentate gyrus (DG) of hippocampus, and increased immunoreactivity for the glial markers GFAP and Iba-1 (neuroinflammation). Curcumin treatment in the doses of 50 and 100mg/kg prevented the deficits in recognition memory in the ORT, but not in spatial memory in the OLT and Y maze. Curcumin treatment exerted only slight improvements in neuroinflammation, resulting in no improvements in hippocampal and subventricular neurogenesis. These results suggest a positive effect of curcumin in object recognition memory which was not related to hippocampal neurogenesis.

Authors+Show Affiliations

Department of Pharmacology, Federal University of Paraná, Curitiba, PR, 81531-980, Brazil. Electronic address: taysa_bassani@yahoo.com.br.Department of Pharmacology, Federal University of Paraná, Curitiba, PR, 81531-980, Brazil.Department of Pharmacology, Federal University of Paraná, Curitiba, PR, 81531-980, Brazil.Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, PR, 87020-900, Brazil.Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil.Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, 81531-990, Brazil.Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, PR, 87020-900, Brazil.Department of Pharmacology, Federal University of Paraná, Curitiba, PR, 81531-980, Brazil.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28801114

Citation

Bassani, Taysa B., et al. "Effects of Curcumin On Short-term Spatial and Recognition Memory, Adult Neurogenesis and Neuroinflammation in a Streptozotocin-induced Rat Model of Dementia of Alzheimer's Type." Behavioural Brain Research, vol. 335, 2017, pp. 41-54.
Bassani TB, Turnes JM, Moura ELR, et al. Effects of curcumin on short-term spatial and recognition memory, adult neurogenesis and neuroinflammation in a streptozotocin-induced rat model of dementia of Alzheimer's type. Behav Brain Res. 2017;335:41-54.
Bassani, T. B., Turnes, J. M., Moura, E. L. R., Bonato, J. M., Cóppola-Segovia, V., Zanata, S. M., Oliveira, R. M. M. W., & Vital, M. A. B. F. (2017). Effects of curcumin on short-term spatial and recognition memory, adult neurogenesis and neuroinflammation in a streptozotocin-induced rat model of dementia of Alzheimer's type. Behavioural Brain Research, 335, 41-54. https://doi.org/10.1016/j.bbr.2017.08.014
Bassani TB, et al. Effects of Curcumin On Short-term Spatial and Recognition Memory, Adult Neurogenesis and Neuroinflammation in a Streptozotocin-induced Rat Model of Dementia of Alzheimer's Type. Behav Brain Res. 2017 09 29;335:41-54. PubMed PMID: 28801114.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of curcumin on short-term spatial and recognition memory, adult neurogenesis and neuroinflammation in a streptozotocin-induced rat model of dementia of Alzheimer's type. AU - Bassani,Taysa B, AU - Turnes,Joelle M, AU - Moura,Eric L R, AU - Bonato,Jéssica M, AU - Cóppola-Segovia,Valentín, AU - Zanata,Silvio M, AU - Oliveira,Rúbia M M W, AU - Vital,Maria A B F, Y1 - 2017/08/08/ PY - 2017/07/11/received PY - 2017/08/01/revised PY - 2017/08/05/accepted PY - 2017/8/13/pubmed PY - 2018/5/23/medline PY - 2017/8/13/entrez KW - Adult neurogenesis KW - Alzheimer’s disease KW - Curcumin KW - Neuroinflammation KW - Recognition memory KW - Spatial memory SP - 41 EP - 54 JF - Behavioural brain research JO - Behav Brain Res VL - 335 N2 - Curcumin is a natural polyphenol with evidence of antioxidant, anti-inflammatory and neuroprotective properties. Recent evidence also suggests that curcumin increases cognitive performance in animal models of dementia, and this effect would be related to its capacity to enhance adult neurogenesis. The aim of this study was to test the hypothesis that curcumin treatment would be able to preserve cognition by increasing neurogenesis and decreasing neuroinflammation in the model of dementia of Alzheimer's type induced by an intracerebroventricular injection of streptozotocin (ICV-STZ) in Wistar rats. The animals were injected with ICV-STZ or vehicle and curcumin treatments (25, 50 and 100mg/kg, gavage) were performed for 30days. Four weeks after surgery, STZ-lesioned animals exhibited impairments in short-term spatial memory (Object Location Test (OLT) and Y maze) and short-term recognition memory (Object Recognition Test - ORT), decreased cell proliferation and immature neurons (Ki-67- and doublecortin-positive cells, respectively) in the subventricular zone (SVZ) and dentate gyrus (DG) of hippocampus, and increased immunoreactivity for the glial markers GFAP and Iba-1 (neuroinflammation). Curcumin treatment in the doses of 50 and 100mg/kg prevented the deficits in recognition memory in the ORT, but not in spatial memory in the OLT and Y maze. Curcumin treatment exerted only slight improvements in neuroinflammation, resulting in no improvements in hippocampal and subventricular neurogenesis. These results suggest a positive effect of curcumin in object recognition memory which was not related to hippocampal neurogenesis. SN - 1872-7549 UR - https://www.unboundmedicine.com/medline/citation/28801114/Effects_of_curcumin_on_short_term_spatial_and_recognition_memory_adult_neurogenesis_and_neuroinflammation_in_a_streptozotocin_induced_rat_model_of_dementia_of_Alzheimer's_type_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0166-4328(17)31137-3 DB - PRIME DP - Unbound Medicine ER -