Learn About Nakajo-Nishimura Syndrome

What is the definition of Nakajo-Nishimura Syndrome?

Nakajo-Nishimura syndrome is an inherited condition that affects many parts of the body and has been described only in the Japanese population. Beginning in infancy or early childhood, affected individuals develop red, swollen lumps (nodular erythema) on the skin that occur most often in cold weather; recurrent fevers; and elongated fingers and toes with widened and rounded tips (clubbing).

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What are the causes of Nakajo-Nishimura Syndrome?

Nakajo-Nishimura syndrome is caused by mutations in the PSMB8 gene. This gene provides instructions for making one part (subunit) of specialized cell structures called immunoproteasomes, which are found primarily in immune system cells. Immunoproteasomes play an important role in regulating the immune system's response to foreign invaders, such as viruses and bacteria. One of the primary functions of immunoproteasomes is to help the immune system distinguish the body's own proteins from proteins made by foreign invaders, so the immune system can respond appropriately to infection.

How prevalent is Nakajo-Nishimura Syndrome?

Nakajo-Nishimura syndrome appears to be rare and has been described only in the Japanese population. About 30 cases have been reported in the medical literature.

Is Nakajo-Nishimura Syndrome an inherited disorder?

This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.

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Who are the sources who wrote this article ?

Published Date: November 01, 2013Published By: National Institutes of Health

What are the Latest Advances for Nakajo-Nishimura Syndrome?

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