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SCA2 is accompanied by cerebellar degeneration and progressive motor decline. Cerebellar Purkinje cells (PCs) seem to be primarily affected in this disorder. The majority of the ataxia research is focused on the motor decline observed in ataxic patients and animal models of the disease. However, recent evidence from patients and ataxic mice suggests that SCA2 can also share the symptoms of the cerebellar cognitive affective syndrome. We previously reported that SCA2-58Q PC-specific transgenic mice exhibit anxiolytic behavior, decline in spatial memory, and a depressive-like state. Here we studied the effect of the activation of the small conductance calcium-activated potassium channels (SK channels) by chlorzoxazone (CHZ) combined with the folic acid (FA) on the PC firing and also motor, cognitive and affective symptoms in SCA2-58Q mice. We realized that CHZ-FA combination improved motor and cognitive decline as well as ameliorated mood alterations in SCA2-58Q mice without affecting the firing rate of their cerebellar PCs. Our results support the idea of the combination therapy for both ataxia and non-motor symptoms in ataxic mice without affecting the firing frequency of PCs.<\/jats:p>","DOI":"10.1038\/s41598-023-39331-y","type":"journal-article","created":{"date-parts":[[2023,8,3]],"date-time":"2023-08-03T09:02:15Z","timestamp":1691053335000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["A chlorzoxazone\u2013folic acid combination improves cognitive affective decline in SCA2-58Q mice"],"prefix":"10.1038","volume":"13","author":[{"given":"Ksenia S.","family":"Marinina","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ilya B.","family":"Bezprozvanny","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Polina A.","family":"Egorova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,8,3]]},"reference":[{"issue":"2","key":"39331_CR1","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1007\/s00415-003-0976-5","volume":"250","author":"K Burk","year":"2003","unstructured":"Burk, K. et al. 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