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J Clin Endocrinol Metab ; 109(3): e1204-e1224, 2024 Feb 20.
Artigo em Inglês | MEDLINE | ID: mdl-37843397

RESUMO

CONTEXT: Lipodystrophy syndromes are a heterogeneous group of rare genetic or acquired disorders characterized by generalized or partial loss of adipose tissue. LMNA-related lipodystrophy syndromes are classified based on the severity and distribution of adipose tissue loss. OBJECTIVE: We aimed to annotate all clinical and metabolic features of patients with lipodystrophy syndromes carrying pathogenic LMNA variants and assess potential genotype-phenotype relationships. METHODS: We retrospectively reviewed and analyzed all our cases (n = 115) and all published cases (n = 379) curated from 94 studies in the literature. RESULTS: The study included 494 patients. The most common variants in our study, R482Q and R482W, were associated with similar metabolic characteristics and complications though those with the R482W variant were younger (aged 33 [24] years vs 44 [25] years; P < .001), had an earlier diabetes diagnosis (aged 27 [18] vs 40 [17] years; P < .001) and had lower body mass index levels (24 [5] vs 25 [4]; P = .037). Dyslipidemia was the earliest biochemical evidence described in 83% of all patients at a median age of 26 (10) years, while diabetes was reported in 61% of cases. Among 39 patients with an episode of acute pancreatitis, the median age at acute pancreatitis diagnosis was 20 (17) years. Patients who were reported to have diabetes had 3.2 times, while those with hypertriglyceridemia had 12.0 times, the odds of having pancreatitis compared to those who did not. CONCLUSION: This study reports the largest number of patients with LMNA-related lipodystrophy syndromes to date. Our report helps to quantify the prevalence of the known and rare complications associated with different phenotypes and serves as a comprehensive catalog of all known cases.


Assuntos
Diabetes Mellitus , Lipodistrofia , Pancreatite , Humanos , Adulto , Adulto Jovem , Mutação , Estudos Retrospectivos , Doença Aguda , Lamina Tipo A/genética , Lipodistrofia/diagnóstico , Lipodistrofia/epidemiologia , Lipodistrofia/genética , Diabetes Mellitus/genética
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