EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway
Our previous investigation found that Ginkgo extract EGb761 could attenuate the depressive-like behaviours induced by a single injection of lipopolysaccharide in mice. However, it has not been investigated whether EGb761 is effective on depressive-like behaviours induced by long-term light deprivati...
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Termedia Publishing House
2017-01-01
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| Series: | Central European Journal of Immunology |
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| Online Access: | https://www.termedia.pl/EGb761-attenuates-depressive-like-behaviours-induced-by-long-term-light-deprivation-in-C57BL-6J-mice-through-inhibition-of-NF-B-IL-6-signalling-pathway,10,28770,1,1.html |
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| author | Yongdong Zhang Yuehan Zhao Fang Pan Panmin Zhang |
| author_facet | Yongdong Zhang Yuehan Zhao Fang Pan Panmin Zhang |
| author_sort | Yongdong Zhang |
| collection | DOAJ |
| description | Our previous investigation found that Ginkgo extract EGb761 could attenuate the depressive-like behaviours induced by a single injection of lipopolysaccharide in mice. However, it has not been investigated whether EGb761 is effective on depressive-like behaviours induced by long-term light deprivation and whether its effects are associated with the inhibition of NF-κB-IL-6 signalling pathway. In this study, three groups (vehicle group, EGb761 low-dose group, and EGb761 high-dose group) of C57BL/6J male mice were exposed to constant darkness for four weeks. The control mice remained on a 12 : 12 light-dark cycle. Depressive-like behaviours were evaluated by tail suspension test (TST), forced swim test (FST), and sucrose preference test (SPT). Spontaneous locomotor activity was evaluated by open field test (OFT). Levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, IκBα, and phospho-IκBαwere measured using Elisa, western blotting, or PCR assays. NF-κB p65 DNA binding activity was evaluated using Chemi Transcription Factor Assay Kit. Results showed long-term light deprivation prolonged the immobile time in TST and FST, shortened the latency to immobility in FST, reduced spontaneous locomotor activity in OFT, decreased sucrose preference in SPT, and increased levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, and phospho-IκBα in hippocampal tissue. EGb761 dose-dependently reversed the changes of the above parameters induced by long-term light deprivation, without affecting spontaneous locomotor activity. We conclude that EGb761 could attenuate the depressive-like behaviours and inhibit the NF-κB-IL-6 signalling pathway in a light-deprivation-induced mouse model of depression. |
| format | Article |
| id | doaj-art-d705584b342d4d7f850f22fdbcd71fc9 |
| institution | OA Journals |
| issn | 1426-3912 1644-4124 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Termedia Publishing House |
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| series | Central European Journal of Immunology |
| spelling | doaj-art-d705584b342d4d7f850f22fdbcd71fc92025-08-20T02:09:25ZengTermedia Publishing HouseCentral European Journal of Immunology1426-39121644-41242017-01-0141435035710.5114/ceji.2016.6380728770EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathwayYongdong ZhangYuehan ZhaoFang PanPanmin ZhangOur previous investigation found that Ginkgo extract EGb761 could attenuate the depressive-like behaviours induced by a single injection of lipopolysaccharide in mice. However, it has not been investigated whether EGb761 is effective on depressive-like behaviours induced by long-term light deprivation and whether its effects are associated with the inhibition of NF-κB-IL-6 signalling pathway. In this study, three groups (vehicle group, EGb761 low-dose group, and EGb761 high-dose group) of C57BL/6J male mice were exposed to constant darkness for four weeks. The control mice remained on a 12 : 12 light-dark cycle. Depressive-like behaviours were evaluated by tail suspension test (TST), forced swim test (FST), and sucrose preference test (SPT). Spontaneous locomotor activity was evaluated by open field test (OFT). Levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, IκBα, and phospho-IκBαwere measured using Elisa, western blotting, or PCR assays. NF-κB p65 DNA binding activity was evaluated using Chemi Transcription Factor Assay Kit. Results showed long-term light deprivation prolonged the immobile time in TST and FST, shortened the latency to immobility in FST, reduced spontaneous locomotor activity in OFT, decreased sucrose preference in SPT, and increased levels of IL-6, IL-6 mRNA, NF-κB p65, phospho-NF-κB p65, and phospho-IκBα in hippocampal tissue. EGb761 dose-dependently reversed the changes of the above parameters induced by long-term light deprivation, without affecting spontaneous locomotor activity. We conclude that EGb761 could attenuate the depressive-like behaviours and inhibit the NF-κB-IL-6 signalling pathway in a light-deprivation-induced mouse model of depression.https://www.termedia.pl/EGb761-attenuates-depressive-like-behaviours-induced-by-long-term-light-deprivation-in-C57BL-6J-mice-through-inhibition-of-NF-B-IL-6-signalling-pathway,10,28770,1,1.html<i>EGb761 antidepressant-like activity light deprivation-induced depression NF-κB-IL-6 signalling pathway</i> |
| spellingShingle | Yongdong Zhang Yuehan Zhao Fang Pan Panmin Zhang EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway Central European Journal of Immunology <i>EGb761 antidepressant-like activity light deprivation-induced depression NF-κB-IL-6 signalling pathway</i> |
| title | EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway |
| title_full | EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway |
| title_fullStr | EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway |
| title_full_unstemmed | EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway |
| title_short | EGb761 attenuates depressive-like behaviours induced by long-term light deprivation in C57BL/6J mice through inhibition of NF-κB-IL-6 signalling pathway |
| title_sort | egb761 attenuates depressive like behaviours induced by long term light deprivation in c57bl 6j mice through inhibition of nf κb il 6 signalling pathway |
| topic | <i>EGb761 antidepressant-like activity light deprivation-induced depression NF-κB-IL-6 signalling pathway</i> |
| url | https://www.termedia.pl/EGb761-attenuates-depressive-like-behaviours-induced-by-long-term-light-deprivation-in-C57BL-6J-mice-through-inhibition-of-NF-B-IL-6-signalling-pathway,10,28770,1,1.html |
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