Lipodystrophy syndrome caused by LMNA gene mutation is a group of autosomal dominant monogenic diseases, characterized by selective fat loss and metabolic abnormalities with insulin resistance. In this review, we summarize the clinical manifestations caused by multiple pathogenic LMNA mutations reported so far, including metabolic complications, cardiovascular abnormalities, gonadal axis disorders, myopathy, and renal abnormalities. Meanwhile, we also clarify the possible pathogenic mechanism, diagnosis, and treatment, in order to improve the understanding of the disease and to provide a reference for basic research and clinical diagnosis and treatment of this disease.
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http://dx.doi.org/10.16288/j.yczz.22-225 | DOI Listing |
Elife
January 2025
The University of Cambridge Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, Cambridge, United Kingdom.
encodes three regulatory subunits of class IA phosphoinositide 3-kinase (PI3K), each associating with any of three catalytic subunits, namely p110α, p110β, or p110δ. Constitutional mutations cause diseases with a genotype-phenotype relationship not yet fully explained: heterozygous loss-of-function mutations cause SHORT syndrome, featuring insulin resistance and short stature attributed to reduced p110α function, while heterozygous activating mutations cause immunodeficiency, attributed to p110δ activation and known as APDS2. Surprisingly, APDS2 patients do not show features of p110α hyperactivation, but do commonly have SHORT syndrome-like features, suggesting p110α hypofunction.
View Article and Find Full Text PDFCureus
December 2024
Pharmacy, Punjab University College of Pharmacy, Lahore, PAK.
Berardinelli-Seip congenital lipodystrophy (BSCL), also known as congenital generalized lipodystrophy (CGL), is an exceptionally rare autosomal recessive disorder marked by a significant deficiency of adipose tissue throughout the body. This lack of adipose tissue, normally found beneath the skin and between internal organs, leads to impaired adipocyte formation and fat storage, causing lipids to accumulate in atypical tissues such as muscles and the liver. The extent of adipose tissue loss directly influences the severity of symptoms, which can include a muscular appearance, increased appetite, bone cysts, marrow fat depletion, acromegalic features, severe insulin resistance, skeletal muscle hypertrophy, hypertrophic cardiomyopathy, hepatic steatosis, hepatomegaly, cirrhosis, and intellectual disability.
View Article and Find Full Text PDFZhonghua Nei Ke Za Zhi
January 2025
Department of Endocrinology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou570311, China.
Int J Mol Sci
December 2024
Department of Internal Medicine, Erasmus Medical Center (Erasmus MC), Dr. Molewaterplein 40, 3015 GD Rotterdam, The Netherlands.
Consuming a "modern" Western diet and overnutrition may increase insulin secretion. Additionally, nutrition-mediated hyperinsulinemia is a major driver of ectopic fat deposition. The global prevalence of metabolic syndrome is high and growing.
View Article and Find Full Text PDFJ Clin Endocrinol Metab
January 2025
Endocrinology Department, Institut de Recerca Sant Joan de Déu, University of Barcelona, 08950 Esplugues, Barcelona, Spain.
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