220 results match your criteria Lipodystrophy Acquired Partial


When Adipose Tissue Lets You Down: Understanding the Functions of Genes Disrupted in Lipodystrophy.

Diabetes 2022 04;71(4):589-598

Lipodystrophy syndromes are conditions in which the adipose tissue mass of an individual is altered inappropriately. The change in adipose mass can range from a relatively modest and subtle redistribution in some individuals with partial lipodystrophy to a near-complete absence of adipose tissue in the most severe forms of generalized lipodystrophy. The common feature is a disconnection between the need of the individual for a safe, healthy lipid storage capacity and the available adipose mass to perform this critical role. Read More

View Article and Full-Text PDF

Autoimmune hepatitis and acquired partial lipodystrophy.

Frontline Gastroenterol 2022 14;13(2):175-177. Epub 2021 May 14.

Liver Unit (including Small Bowel Transplantation), Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK.

The lipodystrophies are an extremely rare group of metabolic conditions which are categorised based on their pathogenesis and phenotype. While primarily known for the striking loss of subcutaneous adipose tissue which they induce, they may also be associated with significant liver injury. In most cases, this results from the secondary deposition of lipid within hepatic parenchyma and is seen predominantly in generalised lipodystrophy. Read More

View Article and Full-Text PDF

Metreleptin therapy for nonalcoholic steatohepatitis: Open-label therapy interventions in two different clinical settings.

Med (N Y) 2021 07 12;2(7):814-835. Epub 2021 May 12.

Division of Metabolism, Endocrinology and Diabetes, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA.

Background: Recombinant leptin therapy reverses nonalcoholic steatohepatitis (NASH) in leptin-deficient lipodystrophy. We inquired if leptin therapy would improve nonalcoholic steatohepatitis in more common forms of this heterogeneous condition.

Methods: Nine male patients with relative leptin deficiency (level < 25th percentile of body mass index- and gender-matched United States population) and biopsy-proven NASH and 23 patients with partial lipodystrophy and NASH were recruited for two distinctive open-label trials. Read More

View Article and Full-Text PDF

Not Enough Fat: Mouse Models of Inherited Lipodystrophy.

Front Endocrinol (Lausanne) 2022 18;13:785819. Epub 2022 Feb 18.

Nantes Université, CNRS, INSERM, l'institut du thorax, Nantes, France.

Lipodystrophies belong to the heterogenous group of syndromes in which the primary defect is a generalized or partial absence of adipose tissue, which may be congenital or acquired in origin. Lipodystrophy should be considered in patients manifesting the combination of insulin resistance (with or without overt diabetes), dyslipidemia and fatty liver. Lipodystrophies are classified according to the etiology of the disease (genetic or acquired) and to the anatomical distribution of adipose tissue (generalized or partial). Read More

View Article and Full-Text PDF

Lipodystrophies in Children.

Horm Res Paediatr 2022 Feb 21. Epub 2022 Feb 21.

Background: Lipodystrophy includes a wide group of diseases characterized by reduction, absence or altered distribution of adipose tissue. Lipodystrophies are classified into generalized or partial, according to the fat distribution, and congenital or acquired, considering the aetiology.

Summary: Impaired glucose and lipid metabolism is typically present, thus severe insulin resistance, diabetes mellitus, dyslipidemia and hepatic steatosis are frequent complications. Read More

View Article and Full-Text PDF
February 2022

Molecular and Cellular Bases of Lipodystrophy Syndromes.

Front Endocrinol (Lausanne) 2021 3;12:803189. Epub 2022 Jan 3.

Sorbonne University, Inserm UMR_S 938, Saint-Antoine Research Centre, Cardiometabolism and Nutrition University Hospital Institute (ICAN), Paris, France.

Lipodystrophy syndromes are rare diseases originating from a generalized or partial loss of adipose tissue. Adipose tissue dysfunction results from heterogeneous genetic or acquired causes, but leads to similar metabolic complications with insulin resistance, diabetes, hypertriglyceridemia, nonalcoholic fatty liver disease, dysfunctions of the gonadotropic axis and endocrine defects of adipose tissue with leptin and adiponectin deficiency. Diagnosis, based on clinical and metabolic investigations, and on genetic analyses, is of major importance to adapt medical care and genetic counseling. Read More

View Article and Full-Text PDF

Complications of lipodystrophy syndromes.

Presse Med 2021 Nov 30;50(3):104085. Epub 2021 Oct 30.

Division of Endocrinology and Metabolism, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey. Electronic address:

Lipodystrophy syndromes are rare complex multisystem disorders caused by generalized or partial lack of adipose tissue. Adipose tissue dysfunction in lipodystrophy is associated with leptin deficiency. Lipodystrophy leads to severe metabolic problems. Read More

View Article and Full-Text PDF
November 2021

Endogenous Leptin Concentrations Poorly Predict Metreleptin Response in Patients With Partial Lipodystrophy.

J Clin Endocrinol Metab 2022 03;107(4):e1739-e1751

Diabetes, Endocrinology, and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Disease, National Institutes of Health, Bethesda, MD, USA.

Context: Leptin replacement with metreleptin improves glycemia and hypertriglyceridemia in severely hypoleptinemic patients with generalized lipodystrophy (GLD), but its effects are variable in partially leptin-deficient patients with partial lipodystrophy (PLD).

Objective: Compare 3 leptin assays (Study I); identify diagnostic performance of leptin assays to detect responders to metreleptin for each assay (Study II).

Design: Study I: cross-sectional analysis of average bias between leptin assays. Read More

View Article and Full-Text PDF

Autoimmunity in lipodystrophy syndromes.

Presse Med 2021 Nov 20;50(3):104073. Epub 2021 Sep 20.

Obesity and Lipodystrophy Center, Endocrinology Unit, University Hospital of Pisa, Via Paradisa 2, 56124 Pisa, Italy.

Lipodystrophy syndromes are rare, heterogeneous disorders characterized by the complete or partial deficiency of adipose tissue and are classified according to the extent of fat loss in generalized or partial subtypes, or based on the pathogenic mechanisms in genetic or acquired. While in most cases of congenital forms of lipodystrophy a genetic alteration can be identified, the pathogenic mechanisms responsible for the acquired diseases are not fully clarified. Based on the evidence of a positive association between most acquired lipodystrophies and autoimmune disorders including immune mediated alterations in the adipose tissue of patients affected by acquired lipodystrophy, a reaction against white adipose tissue antigens is postulated. Read More

View Article and Full-Text PDF
November 2021

Leptin Improves Parameters of Brown Adipose Tissue Thermogenesis in Lipodystrophic Mice.

Nutrients 2021 Jul 22;13(8). Epub 2021 Jul 22.

Medical Department III-Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, 04109 Leipzig, Germany.

Lipodystrophy syndromes (LD) are a heterogeneous group of very rare congenital or acquired disorders characterized by a generalized or partial lack of adipose tissue. They are strongly associated with severe metabolic dysfunction due to ectopic fat accumulation in the liver and other organs and the dysregulation of several key adipokines, including leptin. Treatment with leptin or its analogues is therefore sufficient to reverse some of the metabolic symptoms of LD in patients and in mouse models through distinct mechanisms. Read More

View Article and Full-Text PDF

Leptin Attenuates Cardiac Hypertrophy in Patients With Generalized Lipodystrophy.

J Clin Endocrinol Metab 2021 10;106(11):e4327-e4339

National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.

Context: Lipodystrophy syndromes are rare disorders of deficient adipose tissue, low leptin, and severe metabolic disease, affecting all adipose depots (generalized lipodystrophy, GLD) or only some (partial lipodystrophy, PLD). Left ventricular (LV) hypertrophy is common (especially in GLD); mechanisms may include hyperglycemia, dyslipidemia, or hyperinsulinemia.

Objective: Determine effects of recombinant leptin (metreleptin) on cardiac structure and function in lipodystrophy. Read More

View Article and Full-Text PDF
October 2021

Complement Factor D (adipsin) Levels Are Elevated in Acquired Partial Lipodystrophy (Barraquer-Simons syndrome).

Int J Mol Sci 2021 Jun 21;22(12). Epub 2021 Jun 21.

Complement Research Group, Hospital La Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, 28046 Madrid, Spain.

Complement overactivation has been reported in most patients with Barraquer-Simons syndrome (BSS), a rare form of acquired partial lipodystrophy. Complement Factor D (FD) is a serine protease with a crucial role in the activation of the alternative pathway of the complement system, which is mainly synthesized by adipose tissue. However, its role in the pathogenesis of BSS has not been addressed. Read More

View Article and Full-Text PDF

Bilateral macular drusen in acquired partial lipodystrophy with type 2 membranoproliferative glomerulonephritis.

BMJ Case Rep 2021 Jun 21;14(6). Epub 2021 Jun 21.

Moorfields Eye Hospital NHS Foundation Trust, London, UK

A 35-year-old woman with acquired partial lipodystrophy (PLD) and features of type 2 membranoproliferative glomerulonephritis (MPGN-II), presented with difficulty in her fine detailed vision over the past year. She had right amblyopia from a hypermetropic anisometropia with astigmatism, displaying a best-corrected visual acuity of 0.50 and 0. Read More

View Article and Full-Text PDF

Case Report: Metreleptin and SGLT2 Inhibitor Combination Therapy Is Effective for Acquired Incomplete Lipodystrophy.

Front Endocrinol (Lausanne) 2021 31;12:690996. Epub 2021 May 31.

Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan.

Childhood cancer survivors (CCSs) who have undergone bone marrow transplantation with systemic chemotherapy and whole-body irradiation often experience impaired glucose tolerance with marked insulin resistance. Incomplete acquired diabetic lipodystrophy should be considered as a late complication of bone marrow transplantation. A 24-year-old Japanese female patient with incomplete acquired lipodystrophy, a CCS of acute lymphocytic leukemia at the age of 3 years, was treated for diabetes mellitus and dyslipidemia at our hospital. Read More

View Article and Full-Text PDF
December 2021

Lipodystrophy as a Late Effect after Stem Cell Transplantation.

J Clin Med 2021 Apr 8;10(8). Epub 2021 Apr 8.

Division of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, Ulm University Medical Center, 89075 Ulm, Germany.

Survivors of childhood cancer are at high risk of developing metabolic diseases in adulthood. Recently, several patients developing partial lipodystrophy following hematopoietic stem cell transplantation (HSCT) have been described. In this review, we summarize the cases described so far and discuss potential underlying mechanisms of the disease. Read More

View Article and Full-Text PDF

Effect of Leptin Therapy on Survival in Generalized and Partial Lipodystrophy: A Matched Cohort Analysis.

J Clin Endocrinol Metab 2021 07;106(8):e2953-e2967

National Institute of Diabetes & Digestive & Kidney Diseases, Bethesda, MD 20814, USA.

Context: Data quantifying the impact of metreleptin therapy on survival in non-human immunodeficiency virus (HIV)-related generalized lipodystrophy (GL) and partial lipodystrophy (PL) are unavailable.

Objective: This study aimed to estimate the treatment effect of metreleptin on survival in patients with GL and PL.

Design/setting/patients: Demographic and clinical characteristics were used to match metreleptin-treated and metreleptin-naïve patients with GL and PL. Read More

View Article and Full-Text PDF

Endoplasmic reticulum stress and muscle dysfunction in congenital lipodystrophies.

Biochim Biophys Acta Mol Basis Dis 2021 06 11;1867(6):166120. Epub 2021 Mar 11.

Departamento de Medicina Clínica, Hospital Universitário Onofre Lopes (HUOL)/UFRN, Natal, RN, Brazil.

Lipodystrophy syndromes are a group of rare diseases related to the pathological impairment of adipose tissue and metabolic comorbidities, including dyslipidemia, diabetes, insulin resistance, hypoleptinemia, and hypoadiponectinemia. They can be categorized as partial or generalized according to the degree of fat loss, and inherited or acquired disorders, if they are associated with genetic mutations or are related to autoimmunity, respectively. Some types of lipodystrophies have been associated with changes in both redox and endoplasmic reticulum (ER) homeostasis as well as muscle dysfunction (MD). Read More

View Article and Full-Text PDF

Lipodystrophies-Disorders of the Fatty Tissue.

Int J Mol Sci 2020 Nov 20;21(22). Epub 2020 Nov 20.

German Diabetes-Center, Leibniz Center for Diabetes Research at Heinrich-Heine-University Düsseldorf, 40225 Düsseldorf, Germany.

Lipodystrophies are a heterogeneous group of physiological changes characterized by a selective loss of fatty tissue. Here, no fat cells are present, either through lack of differentiation, loss of function or premature apoptosis. As a consequence, lipids can only be stored ectopically in non-adipocytes with the major health consequences as fatty liver and insulin resistance. Read More

View Article and Full-Text PDF
November 2020

LIPE-related lipodystrophic syndrome: clinical features and disease modeling using adipose stem cells.

Eur J Endocrinol 2021 Jan;184(1):155-168

Sorbonne Université, Inserm UMRS_938, Centre de Recherche Saint Antoine, Paris, France.

Objective: The term Multiple Symmetric Lipomatosis (MSL) describes a heterogeneous group of rare monogenic disorders and multifactorial conditions, characterized by upper-body adipose masses. Biallelic variants in LIPE encoding hormone-sensitive lipase (HSL), a key lipolytic enzyme, were implicated in three families worldwide. We aimed to further delineate LIPE-related clinical features and pathophysiological determinants. Read More

View Article and Full-Text PDF
January 2021

[Recognize rare diseases by the adipose tissue : Lipodystrophy-actually simple but nevertheless often overlooked].

Internist (Berl) 2020 Oct;61(10):1063-1075

Zentrum für Seltene Endokrine Erkrankungen (ZSEE), Sektion Pädiatrische Endokrinologie und Diabetologie, Universitätsklinik für Kinder- und Jugendmedizin, Universitätsklinikum Ulm, Eythstr. 24, 89075, Ulm, Deutschland.

Lipodystrophy (LD) syndromes are a group of rare and heterogeneous diseases characterized by a congenital deficiency or acquired loss of adipose tissue. Due to the resulting disorder of metabolism, sometimes severe sequelae can develop, such as hypertriglyceridemia, marked insulin resistance and early manifestation of type 2 diabetes, recurrent pancreatitis, fatty liver disease and liver fibrosis. Lipodystrophies are clinically recognizable due to the complete lack of subcutaneous adipose tissue or a conspicuous pattern of the distribution of body fat. Read More

View Article and Full-Text PDF
October 2020

Magnetic resonance spectroscopy to assess hepatic steatosis in patients with lipodystrophy.

Turk J Gastroenterol 2020 08;31(8):588-595

Division of Endocrinology, Dokuz Eylül University School of Medicine, İzmir, Turkey.

Background/aims: Lipodystrophy is a rare metabolic disorder characterized by near total or partial lack of subcutaneous adipose tissue and associated with insulin resistance. We aimed to evaluate the efficacy of magnetic resonance spectroscopy imaging (MRS) to explore the fat content of the liver in patients with lipodystrophy and to determine the relationship between the liver fat accumulation and clinical presentations of lipodystrophy.

Materials And Methods: Between July 2014 and February 2016, 34 patients with lipodystrophy were assessed by MRS for quantification of hepatic steatosis. Read More

View Article and Full-Text PDF

Evidence of ongoing complement activation on adipose tissue from an 11-year-old girl with Barraquer-Simons syndrome.

J Dermatol 2020 Dec 5;47(12):1439-1444. Epub 2020 Sep 5.

Complement Research Group, Hospital La Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Madrid, Spain.

Barraquer-Simons syndrome (BSS), a form of acquired partial lipodystrophy, is a rare condition characterized by gradual loss of adipose tissue from the upper body, keeping intact the white adipose tissue of the lower extremities. The etiology of BSS is not well understood, and clinical follow-up studies have not been assessed in these patients. Moreover, no histological studies have been conducted during the active phase of the disease, and complement system activation products have not been sought in the affected areas. Read More

View Article and Full-Text PDF
December 2020

The common pathophysiologic threads between Asian Indian diabetic's 'Thin Fat Phenotype' and partial lipodystrophy: the peripheral adipose tissue transcriptomic evidences.

Adipocyte 2020 01;9(1):253-263

Department of Endocrinology, Sawai Man Singh Medical College and Hospital , Jaipur, India.

T2D is a complex disease with poorly understood mechanisms. In Asian Indians, it is associated with "thin fat" phenotype which resembles with partial lipodystrophy. We hypothesized that disturbed expression of lipodystrophy genes might play a role in T2D pathogenesis. Read More

View Article and Full-Text PDF
January 2020

Familial Partial Lipodystrophy (FPLD): Recent Insights.

Diabetes Metab Syndr Obes 2020 6;13:1531-1544. Epub 2020 May 6.

Department of Endocrinology, University of Ioannina, Ioannina, Greece.

Lipodystrophies are a heterogeneous group of congenital or acquired disorders, characterized by partial or generalized loss of adipose tissue. Familial partial lipodystrophy (FPLD) presents with genetic and phenotypic variability with insulin resistance, hypertriglyceridemia and hepatic steatosis being the cardinal metabolic features. The severity of the metabolic derangements is in proportion with the degree of lipoatrophy. Read More

View Article and Full-Text PDF

Lipotransfer provides effective soft tissue replacement for acquired partial lipodystrophy.

BMJ Case Rep 2020 May 12;13(5). Epub 2020 May 12.

Division of Surgery & Interventional Science, University College London, London, UK.

We present a 48-year-old female patient who presented with features consistent with acquired partial lipodystrophy (APL) also known as 'Barraquer-Simons syndrome'. It is a rare disease characterised by a gradual and progressive onset of lipoatrophy limited to the face, neck, upper limbs, thorax and abdomen and sparing the lower extremities. The resultant physical appearance can have significant psychosocial sequelae, further compounded by misdiagnosis and delay in recognition and management. Read More

View Article and Full-Text PDF

[Clinical presentation and treatment of primary lipodystrophies].

Rev Med Chil 2019 Nov;147(11):1449-1457

Departamento de Nutrición, Diabetes y Metabolismo, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.

Lipodystrophies are a heterogeneous group of syndromes defined by a severe reduction of the adipose tissue. These can be congenital or acquired. Anatomically, they can be partial or generalized. Read More

View Article and Full-Text PDF
November 2019

Imaging spectrum of abnormal subcutaneous and visceral fat distribution.

Insights Imaging 2020 Feb 13;11(1):24. Epub 2020 Feb 13.

Department of Radiology, Teikyo University School of Medicine, 2-11-1 Kaga Itabashi-ku, Tokyo, 173-8606, Japan.

Adipose tissue plays multiple and complex roles not only in mechanical cushioning and energy storage but also as an important secretory organ that regulates energy balance and homeostasis multilaterally. Fat tissue is categorized into subcutaneous fat tissue (SCAT) or visceral fat tissue (VSA) depending on its distribution, with the two having different metabolic functions. Near-total lack of fat in congenital/acquired generalized lipodystrophy, cachexia, or any other severe malnutrition condition induces severe multi-organ dysfunction due to lack of production of leptin and other adipokines. Read More

View Article and Full-Text PDF
February 2020

Metabolomic Analysis of the Effects of Leptin Replacement Therapy in Patients with Lipodystrophy.

J Endocr Soc 2020 Jan 18;4(1):bvz022. Epub 2019 Nov 18.

Diabetes, Endocrinology, and Obesity Branch, Clinical Endocrinology Section, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland.

Context And Objective: Leptin treatment has dramatic clinical effects on glucose and lipid metabolism in leptin-deficient patients with lipodystrophy. Further elucidation of metabolic effects of exogenous leptin therapy will shed light on understanding leptin physiology in humans. Our objective was to utilize metabolomic profiling to examine the changes associated with administration of short-term metreleptin therapy in patients with lipodystrophy. Read More

View Article and Full-Text PDF
January 2020

Lipodystrophic syndromes: From diagnosis to treatment.

Ann Endocrinol (Paris) 2020 Feb 16;81(1):51-60. Epub 2019 Dec 16.

Sorbonne Université, Inserm UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Antoine, Service d'Endocrinologie, Diabétologie et Endocrinologie de la reproduction, Centre national de Référence des Pathologies Rares de l'Insulino - Sécrétion et de l'Insulino-Sensibilité (PRISIS), Paris, France; Assistance Publique-Hôpitaux de Paris, Hôpital Saint-Antoine, Laboratoire Commun de Biologie et Génétique Moléculaires, Paris, France. Electronic address:

Lipodystrophic syndromes are acquired or genetic rare diseases, characterised by a generalised or partial lack of adipose tissue leading to metabolic alterations linked to strong insulin resistance. They encompass a variety of clinical entities due to primary defects in adipose differentiation, in the structure and/or regulation of the adipocyte lipid droplet, or due to immune-inflammatory aggressions, chromatin deregulations and/or mitochondrial dysfunctions affecting adipose tissue. Diagnosis is based on clinical examination, pathological context and comorbidities, and on results of metabolic investigations and genetic analyses, which together determine management and genetic counselling. Read More

View Article and Full-Text PDF
February 2020

Immunological features of patients affected by Barraquer-Simons syndrome.

Orphanet J Rare Dis 2020 01 10;15(1). Epub 2020 Jan 10.

Complement Research Group, Hospital La Paz Institute for Health Research (IdiPAZ), La Paz University Hospital, Paseo de la Castellana, 261, 28046, Madrid, Spain.

Background: C3 hypocomplementemia and the presence of C3 nephritic factor (C3NeF), an autoantibody causing complement system over-activation, are common features among most patients affected by Barraquer-Simons syndrome (BSS), an acquired form of partial lipodystrophy. Moreover, BSS is frequently associated with autoimmune diseases. However, the relationship between complement system dysregulation and BSS remains to be fully elucidated. Read More

View Article and Full-Text PDF
January 2020