Rare Oncology News

Disease Profile

Amyloidosis AA

Prevalence
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.

1-5 / 10 000

US Estimated

Europe Estimated

Age of onset

Childhood

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ICD-10

E85.3

Inheritance

Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease.

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Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype.

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X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.

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X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder.

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Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.

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Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.

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Not applicable

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Other names (AKA)

Amyloid A amyloidosis; AA Amyloidosis

Categories

Immune System Diseases

Summary

Amyloidosis is a group of diseases in which a protein, called amyloid, builds up in the body's organs and tissues. Amyloidosis AA is also referred to as Secondary amyloidosis or Inflammatory amyloidosis. This disease is caused by a long-lasting infection or inflammatory disease such as rheumatoid arthritis, familial Mediterranean fever, or osteomyelitis. Infection or inflammation in the body causes an increased amount of a specific protein called serum amyloid A (SAA) protein. In this disease, part of the SAA protein forms deposits called "amyloid fibrils". These desposits occur in the space around the cells of certain tissues of the body. Amyloidosis AA usually begins as a disease in the kidneys, but other organs can be affected such as the liver and spleen. Medical or surgical treatment of the underlying infection or inflammatory disease can slow down or stop the progression of this condition.[1][2]

Treatment

In amyloidosis AA, the treatment depends on the underlying disease. It is important to control the chronic infection or inflammatory disease which is responsible for the amyloid. Both surgery and medication can be used to achieve successful treatment outcomes for patients.

Medscape Reference provides current and comprehensive information on medical treatment options for amyloidosis AA based on the underlying inflammatory disease or infection. Please visit the link below. You may need to register to view the article, but registration is free.
https://emedicine.medscape.com/article/335559-treatment#showall

Kidney transplant is an important option in patients with amyloidosis AA in which stable control of the underlying disease has been achieved. However, appropriate patient selection is strongly recommended due to a higher incidence of heart failure and infections in AA individuals.[3]

Currently there is a clinical study on the safety and effectiveness of the medication KIACTA in preventing decline of renal function in patients with amyloidosis AA. CLICK HERE to learn more about this study including the six study locations within the United States.

Management Guidelines

    Organizations

    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

      Social Networking Websites

      • RareConnect has an online community for patients and families with this condition so they can connect with others and share their experiences living with a rare disease. The project is a joint collaboration between EURORDIS (European Rare Disease Organisation) and NORD (National Organization for Rare Disorders).

        Learn more

        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

        • The Mayo Clinic provides information on the diagnosis and treatment of amyloidosis.
        • Amyloidosis Awareness is an illustrated booklet for patients and physicians developed by Amyloidosis Support Groups Inc. Versions of the booklet are also available in Spanish and Portuguese.

          In-Depth Information

          • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
          • 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.
          • PubMed is a searchable database of medical literature and lists journal articles that discuss Amyloidosis AA. Click on the link to view a sample search on this topic.

            References

            1. Boston University Amyloidosis Center. Amyloidosis Types. https://www.bu.edu/amyloid/about/what/types/. Accessed 1/3/2014.
            2. R Dhawan, MM Ahmed, E Mubashir et al. AA (Inflammatory) Amyloidosis. Medscape Reference. 10/08/2013; https://emedicine.medscape.com/article/335559-overview. Accessed 1/3/2014.
            3. Obici L and G Merlini. AA amyloidosis: basic knowledge, unmet needs and future treatments. 2012 May 31; 142:w13580. https://www.smw.ch/content/smw-2012-13580/. Accessed 1/3/2014.

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