PMID- 32344535 OWN - NLM STAT- MEDLINE DCOM- 20210201 LR - 20231103 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 21 IP - 8 DP - 2020 Apr 24 TI - Epigenetic Regulation of Circadian Rhythm and Its Possible Role in Diabetes Mellitus. LID - 10.3390/ijms21083005 [doi] LID - 3005 AB - This review aims to summarize the knowledge about the relationship between circadian rhythms and their influence on the development of type 2 diabetes mellitus (T2DM) and metabolic syndrome. Circadian rhythms are controlled by internal molecular feedback loops that synchronize the organism with the external environment. These loops are affected by genetic and epigenetic factors. Genetic factors include polymorphisms and mutations of circadian genes. The expression of circadian genes is regulated by epigenetic mechanisms that change from prenatal development to old age. Epigenetic modifications are influenced by the external environment. Most of these modifications are affected by our own life style. Irregular circadian rhythm and low quality of sleep have been shown to increase the risk of developing T2DM and other metabolic disorders. Here, we attempt to provide a wide description of mutual relationships between epigenetic regulation, circadian rhythm, aging process and highlight new evidences that show possible therapeutic advance in the field of chrono-medicine which will be more important in the upcoming years. FAU - Hudec, Michael AU - Hudec M AD - Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruska 87, 100 00 Prague, Czech Republic. FAU - Dankova, Pavlina AU - Dankova P AD - Department of Anthropology and Human Genetics, Faculty of Science, Charles University; Vinicna 7, 128 00 Prague, Czech Republic. FAU - Solc, Roman AU - Solc R AUID- ORCID: 0000-0003-2322-6689 AD - Department of Anthropology and Human Genetics, Faculty of Science, Charles University; Vinicna 7, 128 00 Prague, Czech Republic. FAU - Bettazova, Nardjas AU - Bettazova N AD - Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruska 87, 100 00 Prague, Czech Republic. FAU - Cerna, Marie AU - Cerna M AUID- ORCID: 0000-0002-1208-5588 AD - Department of Medical Genetics, Third Faculty of Medicine, Charles University; Ruska 87, 100 00 Prague, Czech Republic. LA - eng GR - PROGRES Q36 and SVV/2020/the research programme of Charles University/ PT - Journal Article PT - Review DEP - 20200424 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 SB - IM MH - Aging/genetics/metabolism MH - Animals MH - Biological Variation, Population MH - Circadian Clocks/genetics MH - Circadian Rhythm/*genetics MH - Diabetes Mellitus, Type 2/*etiology/metabolism MH - *Disease Susceptibility MH - Energy Metabolism MH - *Epigenesis, Genetic MH - *Gene Expression Regulation MH - Humans MH - Metabolic Syndrome/etiology/metabolism MH - Sleep PMC - PMC7215839 OTO - NOTNLM OT - aging OT - circadian clock OT - epigenetic regulation OT - metabolic syndrome OT - sleep OT - type 2 diabetes mellitus COIS- The authors declare no conflict of interest. EDAT- 2020/04/30 06:00 MHDA- 2021/02/02 06:00 PMCR- 2020/04/01 CRDT- 2020/04/30 06:00 PHST- 2020/01/24 00:00 [received] PHST- 2020/04/14 00:00 [revised] PHST- 2020/04/21 00:00 [accepted] PHST- 2020/04/30 06:00 [entrez] PHST- 2020/04/30 06:00 [pubmed] PHST- 2021/02/02 06:00 [medline] PHST- 2020/04/01 00:00 [pmc-release] AID - ijms21083005 [pii] AID - ijms-21-03005 [pii] AID - 10.3390/ijms21083005 [doi] PST - epublish SO - Int J Mol Sci. 2020 Apr 24;21(8):3005. doi: 10.3390/ijms21083005.