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Uziel O, Dickstein H, Beery E, Lewis Y, Loewenthal R, Uziel E, Shochat Z, Weizman A, Stein D. Differences in Telomere Length between Adolescent Females with Anorexia Nervosa Restricting Type and Anorexia Nervosa Binge-Purge Type. Nutrients 2023; 15:2596. [PMID: 37299559 PMCID: PMC10255620 DOI: 10.3390/nu15112596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 05/29/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023] Open
Abstract
Physiological and psychological distress may accelerate cellular aging, manifested by shortening of telomere length (TL). The present study focused on TL shortening in anorexia nervosa (AN), an illness combining physiological and psychological distress. For that purpose, we measured TL in 44 female adolescents with AN at admission to inpatient treatment, in a subset of 18 patients also at discharge, and in 22 controls. No differences in TL were found between patients with AN and controls. At admission, patients with AN-binge/purge type (AN-B/P; n = 18) showed shorter TL compared with patients with AN-restricting type (AN-R; n = 26). No change in TL was found from admission to discharge, despite an improvement in body mass index standard deviation score (BMI-SDS) following inpatient treatment. Older age was the only parameter assessed to be correlated with greater TL shortening. Several methodological changes have to be undertaken to better understand the putative association of shorter TL with B/P behaviors, including increasing the sample size and the assessment of the relevant pathological eating disorder (ED) and non-ED psychological correlates in the two AN subtypes.
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Affiliation(s)
- Orit Uziel
- Felsenstein Medical Research Center, Sackler School of Medicine, Tel Aviv University, Petah Tikva 69978, Israel; (O.U.)
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Hadar Dickstein
- Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 52621, Israel
| | - Einat Beery
- Felsenstein Medical Research Center, Sackler School of Medicine, Tel Aviv University, Petah Tikva 69978, Israel; (O.U.)
| | - Yael Lewis
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Shalvatah Mental Health Center, Hod Hasahron 45100, Israel
| | - Ron Loewenthal
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 52621, Israel
| | - Eran Uziel
- Research Unit, Geha Mental Health Center, Petah Tikva 49100, Israel
| | - Zipi Shochat
- Research Unit, Geha Mental Health Center, Petah Tikva 49100, Israel
| | - Abraham Weizman
- Felsenstein Medical Research Center, Sackler School of Medicine, Tel Aviv University, Petah Tikva 69978, Israel; (O.U.)
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Statistical Service, Rabin Medical Center, Petah Tikva 49100, Israel
| | - Daniel Stein
- Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Safra Children’s Hospital, Sheba Medical Center, Ramat Gan 52621, Israel
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DUX4 Expression in FSHD Muscles: Focus on Its mRNA Regulation. J Pers Med 2020; 10:jpm10030073. [PMID: 32731450 PMCID: PMC7564753 DOI: 10.3390/jpm10030073] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/22/2020] [Accepted: 07/24/2020] [Indexed: 12/11/2022] Open
Abstract
Facioscapulohumeral dystrophy (FSHD) is the most frequent muscular disease in adults. FSHD is characterized by a weakness and atrophy of a specific set of muscles located in the face, the shoulder, and the upper arms. FSHD patients may present different genetic defects, but they all present epigenetic alterations of the D4Z4 array located on the subtelomeric part of chromosome 4, leading to chromatin relaxation and, ultimately, to the aberrant expression of one gene called DUX4. Once expressed, DUX4 triggers a cascade of deleterious events, eventually leading to muscle dysfunction and cell death. Here, we review studies on DUX4 expression in skeletal muscle to determine the genetic/epigenetic factors and regulatory proteins governing DUX4 expression, with particular attention to the different transcripts and their very low expression in muscle.
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