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  3. Familial partial lipodystrophy type 2
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Familial partial lipodystrophy type 2


Title


Other Names:
FPLD2; Lipodystrophy, familial partial, Dunnigan type; Lipodystrophy, familial, of limbs and lower trunk; FPLD2; Lipodystrophy, familial partial, Dunnigan type; Lipodystrophy, familial, of limbs and lower trunk; Lipodystrophy, reverse partial; Lipoatrophic diabetes; FPL2; Lipodystrophy, familial partial, type 2; Dunnigan syndrome; Familial partial lipodystrophy, Dunnigan type See More
Categories:
Congenital and Genetic Diseases; Endocrine Diseases; Metabolic disorders; Congenital and Genetic Diseases; Endocrine Diseases; Metabolic disorders; Skin Diseases See More
This disease is grouped under:
Familial partial lipodystrophy

Summary Summary


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Familial partial lipodystrophy type 2 (FPLD2) is a rare, genetic disorder that affects the amount and distribution of fat (adipose tissue) in the body. Symptoms typically develop around puberty, after having normal adipose tissue in childhood.[1] FPLD2 causes a loss of adipose tissue from the limbs, torso, buttocks and hips, while causing a buildup of adipose tissue in the face, neck, and upper back.[1][2][3][4] It may also cause increased musculature.[2] Some people with FPLD2 have areas of dark, thick skin (acanthosis nigricans), and females may have excessive hairiness (hirsutism) and menstrual abnormalities.[1] Metabolic abnormalities develop in adolescence or adulthood, leading to signs and symptoms that may include insulin resistance, dyslipidemia, diabetes, pancreatitis (or recurrent acute pancreatitis), liver steatosis, atherosclerosis, and an increased risk of heart disease.[2][3]

FPLD2 is caused by mutations in the LMNA gene and inheritance is autosomal dominant.[2][3][4] Treatment aims to correct metabolic abnormalities and manage complications. This may involve medications, monitoring the diet, and exercise.[2] Plastic surgery may be considered by some individuals.[2] People with FPL2 are encouraged to seek counseling and support after being diagnosed, as the disorder can cause anxiety and psychological distress.[3] The long-term health outlook generally depends on the severity of complications such as diabetes, pancreatitis, and heart disease.[2]
Last updated: 10/16/2018

Symptoms Symptoms


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This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Showing of 52 |
Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Diabetes mellitus 0000819
Hepatomegaly
Enlarged liver
0002240
Hypertriglyceridemia
Increased plasma triglycerides
Increased serum triglycerides
Increased triglycerides
[ more ]
0002155
Insulin resistance
Body fails to respond to insulin
0000855
Lipoatrophy
Loss of fat tissue in localized area
0100578
Round face
Circular face
Round facial appearance
Round facial shape
[ more ]
0000311
Skeletal muscle hypertrophy
Increased skeletal muscle cells
0003712
Xanthomatosis
Yellow bumps of fatty deposits on skin
0000991
30%-79% of people have these symptoms
Abnormality of the nail 0001597
Acute pancreatitis
Acute pancreatic inflammation
0001735
Advanced eruption of teeth
Early eruption of teeth
0006288
Loss of subcutaneous adipose tissue in limbs
Loss of fat tissue below the skin in limbs
0003635
Secondary amenorrhea
Previous menstrual periods stop
0000869
Thin skin 0000963
5%-29% of people have these symptoms
Abnormality of complement system 0005339
Abnormality of skeletal muscle fiber size 0012084
Acanthosis nigricans
Darkened and thickened skin
0000956
Cellulitis
Bacterial infection of skin
Skin infection
[ more ]
0100658
Congestive heart failure
Cardiac failure
Cardiac failures
Heart failure
[ more ]
0001635
Coronary artery atherosclerosis
Plaque build-up in arteries supplying blood to heart
0001677
Cranial nerve paralysis 0006824
Dysmenorrhea
Painful menstruation
0100607
Eclampsia 0100601
Generalized hirsutism
Excessive hairiness over body
0002230
Glomerulopathy 0100820
Hepatic steatosis
Fatty infiltration of liver
Fatty liver
[ more ]
0001397
Hypertrophic cardiomyopathy
Enlarged and thickened heart muscle
0001639
Myalgia
Muscle ache
Muscle pain
[ more ]
0003326
Myopathy
Muscle tissue disease
0003198
Pancreatitis
Pancreatic inflammation
0001733
Polycystic ovaries 0000147
Splenomegaly
Increased spleen size
0001744
Percent of people who have these symptoms is not available through HPO
Adipose tissue loss
Loss of fat tissue
0008887
Atherosclerosis
Narrowing and hardening of arteries
0002621
Autosomal dominant inheritance 0000006
Decreased HDL cholesterol concentration
Decreased circulating high-density lipoprotein cholesterol
Decreased HDL cholesterol
Low HDL-cholesterol
[ more ]
0003233
Enlarged peripheral nerve 0012645
Hirsutism
Excessive hairiness
0001007
Hypercholesterolemia
Elevated serum cholesterol
Elevated total cholesterol
Increased total cholesterol
[ more ]
0003124
Hyperglycemia
High blood sugar
0003074
Hyperinsulinemia 0000842
Hypertension 0000822
Increased adipose tissue around the neck
Increased fat around the neck
0000468
Increased facial adipose tissue
Increased amount of facial fat
0000287
Increased intraabdominal fat 0008993
Increased intramuscular fat 0008985
Insulin-resistant diabetes mellitus
Insulin resistant diabetes
Insulin-resistant diabetes
[ more ]
0000831
Labial pseudohypertrophy 0008739
Lipodystrophy
Inability to make and keep healthy fat tissue
0009125
Loss of truncal subcutaneous adipose tissue
Loss of fat tissue in trunk
0009002
Prominent superficial veins
Prominent veins
0001015
Reduced subcutaneous adipose tissue
Reduced fat tissue below the skin
0003758
Showing of 52 |
Do you have more information about symptoms of this disease? We want to hear from you.
Last updated: 12/1/2019
Do you have updated information on this disease? We want to hear from you.

Diagnosis Diagnosis


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Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.

Testing Resources

  • The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.

Treatment Treatment


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Individuals with familial partial lipodystrophy type 2 may require the coordinated efforts of a team of specialists, including a primary care provider, cardiologist, endocrinologist, nutritionist, plastic surgeon, and psychiatrist/psychologist.[3] Dietary modifications and daily physical activity can help improve the metabolic complications of lipodystrophy. Insulin sensitizers (such as metformin) and lipid-lowering drugs (statins, fibrates) may also be helpful. Due to the risk of cardiac complications, individuals with familial partial lipodystrophy type 2 should have regular cardiac check-ups. Metreleptin has shown some promise as a treatment for this condition, however, it is not widely approved for treatment at this time.[3][2] The characteristic fat distribution seen in individuals with familial partial lipodystrophy type 2 cannot be reversed. For some individuals, cosmetic surgery may be beneficial in improving appearance and for management of metabolic complications. Liposuction may also be used to remove unwanted deposits of fat. Because familial partial lipodystrophy type 2 can cause anxiety and stress, psychological support is also an important part of treatment.[3]  
Last updated: 7/3/2016

Management Guidelines

  • The NORD Physician Guide for Familial partial lipodystrophy type 2 was developed as a free service of the National Organization for Rare Disorders (NORD) and it's medical advisors.  The guides provide a resource for clinicians about specific rare disorders to facilitate diagnosis and treatment of their patients with this condition. 

Find a Specialist Find a Specialist


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If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources

  • To find a medical professional who specializes in genetics, you can ask your doctor for a referral or you can search for one yourself. Online directories are provided by the American College of Medical Genetics and the National Society of Genetic Counselors. If you need additional help, contact a GARD Information Specialist. You can also learn more about genetic consultations from Genetics Home Reference.
  • American Dietetic Association
    120 South Riverside Plaza, Suite 2000
    Chicago, IL 60606-6995
    Toll-free: 800-366-1655
    E-mail: knowledge@eatright.org
    Website: http://www.eatright.org/Public/

Related Diseases Related Diseases


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Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.

Conditions with similar signs and symptoms from Orphanet
Differential diagnoses include other forms of FLPD as well as Cushing syndrome (see these terms), type 2 diabetes, metabolic syndrome and acquired lipodystrophy.
Visit the Orphanet disease page for more information.

Research Research


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Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Clinical Research Resources

  • ClinicalTrials.gov lists trials that are related to Familial partial lipodystrophy type 2. Click on the link to go to ClinicalTrials.gov to read descriptions of these studies.

    Please note: Studies listed on the ClinicalTrials.gov website are listed for informational purposes only; being listed does not reflect an endorsement by GARD or the NIH. We strongly recommend that you talk with a trusted healthcare provider before choosing to participate in any clinical study.

Organizations Organizations


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Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease

  • Lipodystrophy United
    22 Frances Road
    Los Lunas, NM 87031
    Telephone: (209) 845-7273
    E-mail: info@lipodystrophyunited.org
    Website: http://www.lipodystrophyunited.org
    Facebook: https://www.facebook.com/LipodystrophyUnited/
  • Metabolic Support UK
    5 Hilliards Court
    Sandpiper Way
    Chester Business Park
    Chester, CH4 9QP United Kingdom
    Toll-free: 0800 652 3181
    Telephone: 0845 241 2173
    E-mail: https://www.metabolicsupportuk.org/contact-us
    Website: https://www.metabolicsupportuk.org
Do you know of an organization? We want to hear from you.

Learn More Learn More


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These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • Genetics Home Reference (GHR) contains information on Familial partial lipodystrophy type 2. This website is maintained by the National Library of Medicine.
  • The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Familial partial lipodystrophy type 2. Click on the link to view a sample search on this topic.

Selected Full-Text Journal Articles

  • Krawiec P, Melges B, Pac-Kozuchowska E, Mroczkowska-Juchkiewicz A, Czerska K. Fitting the pieces of the puzzle together: a case report of the Dunnigan-type of familial partial lipodystrophy in the adolescent girl. BMC Pediatr. 2016 Mar 14; 16:38.
  • Belo SP, Magalhaes AC, Freitas P, Carvalho DM. Familial partial lipodystrophy, Dunnigan variety - challenges for patient care during pregnancy: a case report. BMC Res Notes. 2015 Apr 11; 8:140.
  • Vadrot N, Duband-Goulet I, Cabet E, Attanda W, Barateau A, Vicart P, Gerbal F, Briand N, Vigouroux C, Oldenburg AR, Lund EG, Collas P, Buendina B. The p.R482W substitution in A-type lamins deregulates SREBP1 activity in Dunnigan-type familial partial lipodystrophy. Hum Mol Genet. 2015 Apr 1; 24(7):2096-109.
  • Diker-Cohen T, Cochran E, Gorden P, Brown RJ. Partial and generalized lipodystrophy: comparison of baseline characteristics and response to metreleptin. J Clin Endocrinol Metab. 2015 May; 100(5):1802-10. 

GARD Answers GARD Answers


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Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know. Submit a new question

  • Is metreleptin a treatment option for individuals with familial partial lipodystrophy type 2? See answer


Have a question? Contact a GARD Information Specialist.

References References


  1. Mantzoros C. Lipodystrophic syndromes. UpToDate. Waltham, MA: UpToDate; September 14, 2017; https://www.uptodate.com/contents/lipodystrophic-syndromes.
  2. Vigouroux C. Familial partial lipodystrophy, Dunnigan type. Orphanet. February 2015; http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=en&Expert=2348.
  3. Garg A. Familial Partial Lipodystrophy. National Organization for Rare Disorders (NORD). 2015; http://rarediseases.org/rare-diseases/familial-partial-lipodystrophy/.
  4. LMNA. Genetics Home Reference (GHR). August 2013; https://ghr.nlm.nih.gov/gene/LMNA.
Do you know of a review article? We want to hear from you.
You can help advance
rare disease research!
You can help advance rare disease research!
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