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Caretto A, Errichiello E, Patricelli MG, Zuffardi O, Cristel G, Ravelli S, Sirtori M, Scavini M, Bosi E, Martinenghi S. Transcutaneous electrical stimulation therapy and genetic analysis in Dercum's disease: A pilot study. Medicine (Baltimore) 2021; 100:e28360. [PMID: 34941153 PMCID: PMC8702289 DOI: 10.1097/md.0000000000028360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 12/01/2021] [Indexed: 01/05/2023] Open
Abstract
Dercum's disease (DD), or adiposis dolorosa, is a rare condition of unknown etiology characterized by growth of painful subcutaneous adipose tissue. No specific treatment exists. Pain is often invalidating and resistant to analgesic drugs. We tested the efficacy of Frequency Rhythmic Electrical Modulation System (FREMS) therapy on pain relief. Subcutaneous biopsies were performed for genetic analysis.Nine DD patients were enrolled. Five cycles of FREMS at 3-month intervals during 1 year were administered. Visual analogue scale (VAS), Bartel Index Questionnaire and Short Form 36 questionnaire were used to measure pain and general health status at baseline, 6 and 12 months. Dual-energy X-ray absorptiometry (DEXA) quantified fat mass. Next-Generation Sequencing (NGS) was performed on adipose tissue biopsies and peripheral blood sample to search for somatic variants and specific protein pathway mutation.Seven patients were included in the final analysis. FREMS induced a reduction in VAS score (from 92 to 52.5, P = .0597) and a significant improvement in SF-36 domains (Physical functioning, Role limitation due to physical health, Body pain, Vitality, Social functioning, P < .05). No modification in anthropometrics and DEXA values was observed. The analysis of the mitochondrial Displacement loop (D-loop) region confirmed the clonality of all lipomatous lesions. The presence of the mitochondrially encoded tRNA-Lysine (MT-TK) m.8344A>G variant, occasionally identified in patients with multiple symmetric lipomatosis, was excluded in all subjects. On the other hand, we observed variants in genes belonging to signaling pathways involved in cell cycle and proliferation (Phosphoinositide 3-kinase/AKT/mTOR, MAPK/ERK, and Hippo).FREMS can be a useful tool to alleviate pain and improve overall quality of life in patients with DD. Genetic analysis highlighted the molecular heterogeneity of lipomas.
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Affiliation(s)
- Amelia Caretto
- Department of Internal Medicine, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Edoardo Errichiello
- Unit of Medical Genetics, Department of Molecular Medicine, University of Pavia, IRCCS Mondino Foundation, Pavia, Italy
| | | | - Orsetta Zuffardi
- Unit of Medical Genetics, Department of Molecular Medicine, University of Pavia, IRCCS Mondino Foundation, Pavia, Italy
| | - Giulia Cristel
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Silvia Ravelli
- Department of Radiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marcella Sirtori
- Bone Metabolic Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marina Scavini
- Department of Internal Medicine, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Emanuele Bosi
- Department of Internal Medicine, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Sabina Martinenghi
- Department of Internal Medicine, Diabetes Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
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