Article (Scientific journals)
Thiamine and benfotiamine prevent stress-induced suppression of hippocampal neurogenesis in mice exposed to predation without affecting brain thiamine diphosphate levels
Vignisse, Julie; Sambon, Margaux; Gorlova, Anna et al.
2017In Molecular and Cellular Neuroscience, 82, p. 126-136
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Keywords :
Thiamine; benfotiamine; predator stress; neurogenesis; oxidative stress; hippocampus
Abstract :
[en] Thiamine is essential for normal brain function and its deficiency causes metabolic impairment, specific lesions, oxidative damage and reduced adult hippocampal neurogenesis (AHN). Thiamine precursors with increased bioavailability, especially benfotiamine, exert neuroprotective effects not only for thiamine deficiency (TD), but also in mouse models of neurodegeneration. As it is known that AHN is impaired by stress in rodents, we exposed C57BL6/J mice to predator stress for 5 consecutive nights and studied the proliferation (number of Ki67-positive cells) and survival (number of BrdU-positive cells) of newborn immature neurons in the subgranular zone of the dentate gyrus. In stressed mice, the number of Ki67- and BrdU-positive cells was reduced compared to non-stressed animals. This reduction was prevented when the mice were treated (200 mg/kg/day in drinking water for 20 days) with thiamine or benfotiamine, that were recently found to prevent stress-induced behavioral changes and glycogen synthase kinase-3β (GSK-3β) upregulation in the CNS. Moreover, we show that thiamine and benfotiamine counteract stress-induced bodyweight loss and suppress stress-induced anxiety-like behavior. Both treatments induced a modest increase in the brain content of free thiamine while the level of thiamine diphosphate (ThDP) remained unchanged, suggesting that the beneficial effects observed are not linked to the role of this coenzyme in energy metabolism. Predator stress increased hippocampal protein carbonylation, an indicator of oxidative stress. This effect was antagonized by both thiamine and benfotiamine. Moreover, using cultured mouse neuroblastoma cells, we show that in particular benfotiamine protects against paraquat-induced oxidative stress. We therefore hypothesize that thiamine compounds may act by boosting anti-oxidant cellular defenses, by a mechanism that still remains to be unveiled. Our study demonstrates, for the first time, that thiamine and benfotiamine prevent stress-induced inhibition of hippocampal neurogenesis and accompanying physiological changes. The present data suggest that thiamine precursors with high bioavailability might be useful as a complementary therapy in several neuropsychiatric disorders.
Research center :
Giga-Neurosciences - ULiège
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Vignisse, Julie ;  Université de Liège > Département des maladies infectieuses et parasitaires (DMI) > Mycologie vétérinaire
Sambon, Margaux ;  Université de Liège > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique
Gorlova, Anna
Pavlov, Dmitrii
Caron, Nicolas
Malgrange, Brigitte  ;  Université de Liège > GIGA - Neurosciences
Shevtsova, Elena
Svistunov, Andrey
Anthony, Daniel C.
Markova, Natalyia
Bazhenova, Natalyia
Coumans, Bernard ;  Université de Liège > GIGA - Neurosciences
Lakaye, Bernard ;  Université de Liège > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique
Wins, Pierre
Strekalova, Tatyana
Bettendorff, Lucien  ;  Université de Liège > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique
More authors (6 more) Less
Language :
English
Title :
Thiamine and benfotiamine prevent stress-induced suppression of hippocampal neurogenesis in mice exposed to predation without affecting brain thiamine diphosphate levels
Publication date :
2017
Journal title :
Molecular and Cellular Neuroscience
ISSN :
1044-7431
eISSN :
1095-9327
Publisher :
Elsevier
Volume :
82
Pages :
126-136
Peer reviewed :
Peer Reviewed verified by ORBi
European Projects :
FP7 - 602805 - AGGRESSOTYPE - Aggression subtyping for improved insight and treatment innovation in psychiatric disorders
FP7 - 602805 - AGGRESSOTYPE - Aggression subtyping for improved insight and treatment innovation in psychiatric disorders
Name of the research project :
“5-100” Russian Research Excellence program
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture [BE]
Fondation Recherche Alzheimer [BE]
EU - European Union [BE]
CE - Commission Européenne [BE]
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