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However, little is known whether the memory deficits induced by early\u2010life FSs could transmit across generations or not.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>The memory functions of different generations of FS rats were behaviorally evaluated by morris water maze, inhibitory avoidance task, and contextual fear conditioning task. Meanwhile, molecular biology and pharmacological methods were used to investigate the role of DNA methylation in transgenerational transmission of memory defects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Prolonged FSs in infant rats resulted in memory deficits in adult and transgenerationally transmitted to next generation, which was mainly through mothers. For these two generations, DNA methyltransferase (DNMT) 1 was upregulated, leading to transcriptional inhibition of the synaptic plasticity protein reelin but not the memory suppressor protein phosphatase 1. DNMT inhibitors prevented the high expression of DNMT1 and hypermethylation of <jats:italic>reelin<\/jats:italic> gene and reversed the transgenerationally memory deficits. In addition, enriched environment in juvenile rats rescued memory deficits induced by prolonged FSs.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our study demonstrated early experience of prolonged FSs led to memory deficits in adult rats and their unaffected offspring, which involved epigenetic mechanisms, suggesting early environmental experiences had a significant impact on the transgenerational transmission of neurological diseases.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cns.13088","type":"journal-article","created":{"date-parts":[[2019,1,22]],"date-time":"2019-01-22T10:21:17Z","timestamp":1548152477000},"page":"601-611","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Prolonged febrile seizures induce inheritable memory deficits in rats through DNA methylation"],"prefix":"10.1111","volume":"25","author":[{"given":"Yun\u2010Jian","family":"Dai","sequence":"first","affiliation":[{"name":"Institute of Pharmacology &amp; 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