{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,19]],"date-time":"2026-02-19T03:15:41Z","timestamp":1771470941563,"version":"3.50.1"},"reference-count":38,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2023,12,31]],"date-time":"2023-12-31T00:00:00Z","timestamp":1703980800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81660598"],"award-info":[{"award-number":["81660598"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81860636"],"award-info":[{"award-number":["81860636"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["82060681"],"award-info":[{"award-number":["82060681"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J Geriat Psychiatry"],"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Chronic hyperglycemia is considered as an important factor to promote the neurodegenerative process of brain, and the synaptic plasticity as well as heterogeneity of hippocampal cells are thought to be associated with cognitive dysfunction in the early process of neurodegeneration. To date, fibronectin type III domain\u2010containing protein 5 (FNDC5) has been highlighted its protective role in multiple neurodegenerative diseases. However, the potential molecular and cellular mechanisms of FNDC5 on synaptic plasticity regulation in cognitive impairment (CI) induced by diabetics are still need to known.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods\/Design<\/jats:title><jats:p>To investigate the heterogeneity and synaptic plasticity of hippocampus in animals with CI state induced by hyperglycemia, and explore the potential role of FNDC5 involved in this process. Firstly, the single cell sequencing was performed based on the hippocampal tissue from db diabetic mice induced CI and normal health control mice by ex vivo experiments; and then the integrated analysis and observations validation using Quantitative Real\u2010time PCR, western blot as well as other in vitro studies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We observed and clarified the sub\u2010cluster of type IC spiral ganglion neurons expressed marker genes as Trmp3 and sub\u2010cluster of astrocytes with marker gene as Atp1a2 in hippocampal cells from diabetic animals induced CI and the effect of those on neuron\u2010glial communication. We also found that FNDC5\\BDNF\u2010Trk axis was involved in the synaptic plasticity regulation of hippocampus. In high glucose induced brain injury model in vitro, we investigated that FNDC5 significantly regulates BDNF expression and that over\u2010expression of FNDC5 up\u2010regulated BDNF expression (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05) and can also significantly increase the expression of synapsin\u20101 (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05), which is related to synaptic plasticity, In addition, the unbalanced methylation level between H3K4 and H3K9 in Fndc5 gene promoter correlated with significantly down\u2010regulated expression of FNDC5 (<jats:italic>p<\/jats:italic>\u00a0&lt;\u00a00.05) in the hyperglycemia state.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The current study revealed that the synaptic plasticity of hippocampal cells in hyperglycemia might be regulated by FNDC5\\BDNF\u2010Trk axis, playing the protective role in the process of CI induced by hyperglycemia and providing a target for the early treatment of hyperglycemia induced cognitive dysfunction in clinic.<\/jats:p><\/jats:sec>","DOI":"10.1002\/gps.6047","type":"journal-article","created":{"date-parts":[[2024,1,1]],"date-time":"2024-01-01T07:54:40Z","timestamp":1704095680000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The integrated analysis and underlying mechanisms of FNDC5 on diabetic induced cognitive deficits"],"prefix":"10.1002","volume":"39","author":[{"given":"Qiong","family":"Xiang","sequence":"first","affiliation":[{"name":"Institute of Medicine Medical Research Center Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jia\u2010Sheng","family":"Tao","sequence":"additional","affiliation":[{"name":"Institute of Medicine Medical Research Center Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chuan\u2010Jun","family":"Fu","sequence":"additional","affiliation":[{"name":"Institute of Medicine Medical Research Center Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li\u2010Xiu","family":"Liao","sequence":"additional","affiliation":[{"name":"Institute of Pharmaceutical Sciences Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li\u2010Ni","family":"Liu","sequence":"additional","affiliation":[{"name":"Institute of Medicine Medical Research Center Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Deng","sequence":"additional","affiliation":[{"name":"Institute of Medicine Medical Research Center Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xian\u2010Hui","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Pharmaceutical Sciences Jishou University  Jishou Hunan China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,12,31]]},"reference":[{"key":"e_1_2_13_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41574\u2010018\u20100048\u20107"},{"key":"e_1_2_13_3_1","doi-asserted-by":"publisher","DOI":"10.1001\/jamaophthalmol.2015.4606"},{"key":"e_1_2_13_4_1","doi-asserted-by":"publisher","DOI":"10.1056\/nejmoa0806470"},{"issue":"5","key":"e_1_2_13_5_1","first-page":"45","article-title":"Therapeutic strategy for type 2 diabetes\u2010clear outcome. 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