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Motor deficits are a shared feature of FXS and autism. The cerebellum has emerged as one of the target brain areas affected by neurodevelopmental diseases. Alterations in the cerebellar structure, circuits, and function may be the key drivers of impaired fine and gross motor skills in FXS and fragile X\u2010associated tremor\/ataxia syndrome (FXTAS). In this review, we briefly examined recent findings in FXS and present a discussion on the literature supporting motor skill deficits in FXS. Subsequently, we focused on neuropathological alterations in the cerebellum in FXS and FXTAS. We highlight studies that have directly examined the function of fragile X mental retardation protein and related epigenetic variations in the cerebellum. Overall, we obtained considerable supporting evidence for the hypothesis that cerebellar dysfunction is evident in FXS and FXTAS; however, compared with studies on other ASD models, studies on motor skills related to fragile X disorders are particularly rare and inconclusive. Hence, future research should address FXS\u2010related motor and behavioral trajectories and examine the underlying mechanisms at both the cell and circuit levels.<\/jats:p>","DOI":"10.1002\/jdn.10217","type":"journal-article","created":{"date-parts":[[2022,7,23]],"date-time":"2022-07-23T17:24:36Z","timestamp":1658597076000},"page":"557-568","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Cerebellum neuropathology and motor skill deficits in fragile X syndrome"],"prefix":"10.1002","volume":"82","author":[{"given":"Yu\u2010shan","family":"Chen","sequence":"first","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liu","family":"Guo","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Man","family":"Han","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Si\u2010ming","family":"Zhang","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi\u2010qi","family":"Chen","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia","family":"Zou","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shu\u2010yuan","family":"Bai","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gui\u2010rong","family":"Cheng","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5119-5448","authenticated-orcid":false,"given":"Yan","family":"Zeng","sequence":"additional","affiliation":[{"name":"Brain Science and Advanced Technology Institute, School of Medicine Wuhan University of Science and Technology  Wuhan China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,8,4]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.humov.2021.102818"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.15585\/mmwr.ss6706a1"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12311-014-0627-7"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrdd.20009"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neulet.2018.05.013"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.3340-04.2004"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/mds.21493"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/gbb.12204"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1601-183X.2005.00183.x"},{"key":"e_1_2_12_11_1","first-page":"1757","article-title":"Fragile X premutation carriers: Characteristic MR imaging findings of adult male patients with progressive cerebellar and cognitive dysfunction","volume":"23","author":"Brunberg J. 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