PMID- 24939359 OWN - NLM STAT- MEDLINE DCOM- 20151029 LR - 20211021 IS - 1573-4919 (Electronic) IS - 0300-8177 (Print) IS - 0300-8177 (Linking) VI - 395 IP - 1-2 DP - 2014 Oct TI - Mitochondrial epigenetics in bone remodeling during hyperhomocysteinemia. PG - 89-98 LID - 10.1007/s11010-014-2114-3 [doi] AB - Increased levels of homocysteine (Hcy), known as hyperhomocysteinemia (HHcy), is an independent risk factor of various diseases. Clinical studies report that people born with severe HHcy develop skeletal malformations with weaker bone. Studies also report that altered mitochondrial dynamics and altered epigenetics contribute to weaker bones and bone diseases. Although Hcy-induced mitochondrial dysfunction has been shown to affect bone metabolism, the role of mitochondrial epigenetics (mito-epigenetics) has not been studied in bones. The epigenetics in mitochondria is interesting as the mitochondrial genome size is small (16 kb) with fewer CpG, and without histones and introns. Recently, fascinating works on epigenetics along with the discovery of histone-like proteins in mitochondria are giving exciting areas for novel studies on mitochondria epigenetics. There are mutual cause and effect relationships between bone, mitochondria, Hcy, and epigenetics, but unfortunately, studies are lacking that describe the involvement of all these together in bone disease progression. This review describes the reciprocal relationships and mechanisms of Hcy-bone-mitochondria-epigenetics along with a short discussion of techniques which could be employed to assess Hcy-induced anomaly in bone, mediated through alterations in mito-epigenetics. FAU - Kalani, Anuradha AU - Kalani A AD - Department of Physiology and Biophysics, School of Medicine, Health Sciences Centre, A-1201, University of Louisville, 500 South Preston Street, Louisville, KY, 40202, USA. FAU - Kamat, Pradip K AU - Kamat PK FAU - Voor, Michael J AU - Voor MJ FAU - Tyagi, Suresh C AU - Tyagi SC FAU - Tyagi, Neetu AU - Tyagi N LA - eng GR - R01 NS084823/NS/NINDS NIH HHS/United States GR - NS-084823-SCT/SC/NCI NIH HHS/United States GR - HL71010-NT/HL/NHLBI NIH HHS/United States GR - R01 HL107640/HL/NHLBI NIH HHS/United States GR - R01 HL071010/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review DEP - 20140618 PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 SB - IM MH - Animals MH - *Bone Remodeling MH - Epigenesis, Genetic MH - Genome, Mitochondrial MH - Humans MH - Hyperhomocysteinemia/genetics/*pathology MH - Mitochondria/*genetics/pathology PMC - PMC4134425 MID - NIHMS606306 COIS- Conflict of Interest: The authors declared no conflict of interest. EDAT- 2014/06/19 06:00 MHDA- 2015/10/30 06:00 PMCR- 2015/10/01 CRDT- 2014/06/19 06:00 PHST- 2014/03/18 00:00 [received] PHST- 2014/06/02 00:00 [accepted] PHST- 2014/06/19 06:00 [entrez] PHST- 2014/06/19 06:00 [pubmed] PHST- 2015/10/30 06:00 [medline] PHST- 2015/10/01 00:00 [pmc-release] AID - 10.1007/s11010-014-2114-3 [doi] PST - ppublish SO - Mol Cell Biochem. 2014 Oct;395(1-2):89-98. doi: 10.1007/s11010-014-2114-3. Epub 2014 Jun 18.