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Specifically, studies have demonstrated correlations between pain conditions and altered DNA methylation patterns. Thus, DNA methylation has been revealed as a possible modulator or contributor to pain conditions, providing a potential therapeutic target for treatment by DNA methylation modification. To develop such treatments, it is necessary to clarify a wide number of aspects on how DNA methylation affects pain perception; first and foremost, the temporal dynamics. The objective of the present review is to provide an overview of current knowledge on temporal dynamics of DNA methylation in response to pain, and to investigate if a timeframe can be established based on the data of currently published studies.<\/jats:p><\/jats:sec><jats:sec><jats:title>Databases and data treatment<\/jats:title><jats:p>PubMed, MEDLINE, Google Scholar and Embase were searched comprehensively for studies of DNA methylation in neuropathic, inflammatory and alternative animal pain models, and in chronic pain patients including Complex Regional Pain Syndrome, chronic postsurgical pain, chronic widespread pain, fibromyalgia and Crohn's disease.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We identified 34 articles highlighting variations in temporal dynamics of DNA methylation across species and between different types of pain. These studies represent a starting point to uncover new insights in the DNA methylation time course in pain.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>No timeframe can currently be made for the DNA methylation response to pain in any of the reviewed conditions, highlighting an important focus area for future research.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ejp.1674","type":"journal-article","created":{"date-parts":[[2020,10,16]],"date-time":"2020-10-16T06:01:44Z","timestamp":1602828104000},"page":"296-312","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Time course of DNA methylation in pain conditions: From experimental models to humans"],"prefix":"10.1002","volume":"25","author":[{"given":"Lonnie","family":"M\u00f8ller Johansen","sequence":"first","affiliation":[{"name":"Department of Health Science and Technology The Faculty of Medicine Aalborg University Aalborg Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Carla","family":"Gerra","sequence":"additional","affiliation":[{"name":"Center for Neuroplasticity and Pain (CNAP) SMI\u00ae Department of Health Science and Technology Aalborg University Aalborg Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lars","family":"Arendt\u2010Nielsen","sequence":"additional","affiliation":[{"name":"Center for Neuroplasticity and Pain (CNAP) SMI\u00ae Department of Health Science and Technology Aalborg University Aalborg Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,11,10]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/2470547017704763"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1186\/s13148-019-0731-0"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.3389\/fncel.2015.00088"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/art.20042"},{"key":"e_1_2_8_6_1","first-page":"344","article-title":"Fibromiyalji ve romatoid artritte \u00c7ocukluk \u00c7a\u011f\u0131 \u00d6rselenmeleri, anksiyete ve depresyon d\u00fczeyleri","volume":"51","author":"Bayram K.","year":"2014","journal-title":"Noropsikiyatri Ars"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms3978"},{"key":"e_1_2_8_8_1","first-page":"16","article-title":"Epigentic memory","volume":"16","author":"Bird A.","year":"2002","journal-title":"Genes & Development"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tig.2004.06.009"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0014821"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0006767"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1097\/j.pain.0000000000001624"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0165548"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12035-014-9040-y"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0107653"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/tp.2016.247"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1080\/08990220.2017.1292237"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41392-019-0095-0"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpain.2018.12.008"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.2147\/PGPM.S132691"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pgen.1000602"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1097\/j.pain.0000000000000932"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1093\/jn\/132.8.2393S"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.1118514109"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1186\/gm416"},{"key":"e_1_2_8_26_1","first-page":"315","article-title":"Neuropathic pain as a process: Reversal of chronification in an animal model","volume":"4","author":"Dableh L. 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