Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center

Familial partial lipodystrophy (FPLD) is a rare syndrome in which a patient’s phenotype is not merely dependent on the specific genetic mutation, but it is also defined by a combination of other demographic, environmental and genetic factors. In this prospective observational study in a Greek referr...

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Main Authors: Aikaterini Kountouri, Emmanouil Korakas, Eirini Maratou, Ignatios Ikonomidis, Konstantinos Balampanis, Stavros Liatis, Nikolaos Tentolouris, Panagiotis Toulas, Foteini Kousathana, Christophoros Giatzakis, George D. Dimitriadis, Vaia Lambadiari
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/24/15/12045
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author Aikaterini Kountouri
Emmanouil Korakas
Eirini Maratou
Ignatios Ikonomidis
Konstantinos Balampanis
Stavros Liatis
Nikolaos Tentolouris
Panagiotis Toulas
Foteini Kousathana
Christophoros Giatzakis
George D. Dimitriadis
Vaia Lambadiari
author_facet Aikaterini Kountouri
Emmanouil Korakas
Eirini Maratou
Ignatios Ikonomidis
Konstantinos Balampanis
Stavros Liatis
Nikolaos Tentolouris
Panagiotis Toulas
Foteini Kousathana
Christophoros Giatzakis
George D. Dimitriadis
Vaia Lambadiari
author_sort Aikaterini Kountouri
collection DOAJ
description Familial partial lipodystrophy (FPLD) is a rare syndrome in which a patient’s phenotype is not merely dependent on the specific genetic mutation, but it is also defined by a combination of other demographic, environmental and genetic factors. In this prospective observational study in a Greek referral center, we enrolled 39 patients who fulfilled the clinical criteria of FPLD. A genetic analysis was conducted, which included sequence and deletion/duplication analyses of the LMNA and PPRARG genes, along with anthropometric and metabolic parameters. The treatment responses of patients who were eligible for treatment with metreleptin were evaluated at 3 and 12 months. In most of the patients, no significant changes were detected at the exon level, and any mutations that led to changes at the protein level were not associated with the lipodystrophic phenotype. On the contrary, various changes were detected at the intron level, especially in introns 7 and 10, whose clinical significance is considered unknown. In addition, treatment with metreleptin in specific FPLD patients significantly improved glycemic and lipidemic control, an effect which was sustained at the 12-month follow-up. More large-scale studies are necessary to clarify the genetic and allelic heterogeneity of the disease, along with other parameters which could predict treatment response.
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spelling doaj.art-380988c500fc4f1682870aec700610d22023-11-18T22:59:37ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-07-0124151204510.3390/ijms241512045Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral CenterAikaterini Kountouri0Emmanouil Korakas1Eirini Maratou2Ignatios Ikonomidis3Konstantinos Balampanis4Stavros Liatis5Nikolaos Tentolouris6Panagiotis Toulas7Foteini Kousathana8Christophoros Giatzakis9George D. Dimitriadis10Vaia Lambadiari11Second Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceSecond Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceLaboratory of Clinical Biochemistry, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceLaboratory of Preventive Cardiology, Second Cardiology Department, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceSecond Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceFirst Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, GreeceFirst Department of Propaedeutic and Internal Medicine, Medical School, National and Kapodistrian University of Athens, Laiko General Hospital, 11527 Athens, GreeceBioiatriki Healthcare Group, 11526 Athens, GreeceSecond Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceDNAbiolab, Cretan Center for Research and Development of Applications on Genetics and Molecular Biology, 71306 Heraklion, GreeceSector of Medicine, Medical School, National and Kapodistrian University of Athens, 15772 Athens, GreeceSecond Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Attikon University Hospital, 12462 Athens, GreeceFamilial partial lipodystrophy (FPLD) is a rare syndrome in which a patient’s phenotype is not merely dependent on the specific genetic mutation, but it is also defined by a combination of other demographic, environmental and genetic factors. In this prospective observational study in a Greek referral center, we enrolled 39 patients who fulfilled the clinical criteria of FPLD. A genetic analysis was conducted, which included sequence and deletion/duplication analyses of the LMNA and PPRARG genes, along with anthropometric and metabolic parameters. The treatment responses of patients who were eligible for treatment with metreleptin were evaluated at 3 and 12 months. In most of the patients, no significant changes were detected at the exon level, and any mutations that led to changes at the protein level were not associated with the lipodystrophic phenotype. On the contrary, various changes were detected at the intron level, especially in introns 7 and 10, whose clinical significance is considered unknown. In addition, treatment with metreleptin in specific FPLD patients significantly improved glycemic and lipidemic control, an effect which was sustained at the 12-month follow-up. More large-scale studies are necessary to clarify the genetic and allelic heterogeneity of the disease, along with other parameters which could predict treatment response.https://www.mdpi.com/1422-0067/24/15/12045lipodystrophydiabetes mellitusFPLDmetreleptinexonsintrons
spellingShingle Aikaterini Kountouri
Emmanouil Korakas
Eirini Maratou
Ignatios Ikonomidis
Konstantinos Balampanis
Stavros Liatis
Nikolaos Tentolouris
Panagiotis Toulas
Foteini Kousathana
Christophoros Giatzakis
George D. Dimitriadis
Vaia Lambadiari
Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
International Journal of Molecular Sciences
lipodystrophy
diabetes mellitus
FPLD
metreleptin
exons
introns
title Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
title_full Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
title_fullStr Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
title_full_unstemmed Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
title_short Familial Partial Lipodystrophy: Clinical Features, Genetics and Treatment in a Greek Referral Center
title_sort familial partial lipodystrophy clinical features genetics and treatment in a greek referral center
topic lipodystrophy
diabetes mellitus
FPLD
metreleptin
exons
introns
url https://www.mdpi.com/1422-0067/24/15/12045
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