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:: How to recognise Neurocanthocytosis

The first signs of the diseases in the neuroacanthocytosis (NA) group are subtle and easily overlooked. Initial symptoms, which often occur in the person’s mid 20’s, may include grunts or tic noises made unconsciously in the throat, progressing to drooling and problems in controlling the tongue from ejecting food. Involuntary biting of the tongue, lips and/or cheeks may follow.

At the beginning there can be a general, slight physical awkwardness. Things on a shelf are knocked off for no apparent reason. Difficulty with walking and balance can also be early symptoms. Problems controlling trunk, leg and arm movements are often barely noticeable at the beginning, but become increasingly difficult as the disease progresses. Several patients find it difficult to sleep at night and others report fatigue and weakness.

Personality change may also be an early indication. The carefree young adult becomes obsessive-compulsive and uncharacteristically forgetful or just loses confidence or drive. Fainting or epileptic seizures may also occur. Mood changes may happen and a person often becomes isolated, in part out of embarrassment.

There are several reports of the problems beginning after a traumatic event including physical attack, unexpected failure of an exam and birth of a child.

CLINICAL SIGNS

A defining symptom that is not apparent is the spiky red blood cells, or acanthocytes, from which the NA disease group takes its name. These unusual blood cells can be observed with a microscope in some circumstances. Still more difficult to observe are the alterations or mutations in patients’ genes. Each of the NA group diseases has a different genetic characteristic that can be determined only by blood tests.

A person showing some of this pattern of symptoms should see a neurologist. Clinicians and patients can also visit www.naadvocacy.org for links to further scientific reports. Full details are also available on the free blood testing service offered by the Advocacy for Neuroacanthocytosis Patients, aimed at helping determine a definitive diagnosis for NA.



:: Useful NA Resources

  • Neuroacanthocytosis Syndromes II, published December 2007, the book provides a profound insight into recent developments within the field of neuroacanthocytosis syndromes. Edited by Ruth H. Walker, Shinji Saiki and Adrian Danek. Available at amazon.com
  • A Western blot test for the presence of chorein in the membranes of red blood cells can be offered free of charge due to support of the Advocacy for Neuroacanthocytosis Patients'. Download instructions on the blood sampling and specimen shipment as a PDF or get more information on the method at PubMed
  • The entry for chorea acanthocytosis in GeneReviews is the most complete, readily available report on ChAc. Published by the University of Washington with the support of the National Institutes of Health
  • A dedicated Patient & Families Support Group at Yahoo Groups offers patients and families information, advice, support or just an understanding ear
  • Visit PubMed for access to NA research in English from the Medline database.
  • Search Google for the latest on NA
  • Visit the NA page on WeMove, the Movement Disorder Societies charitable and educational associate



:: naadvocacy.org

naadvocacy.org is the website of the The Institute for Neuroacanthocytosis. It is the Advocacy's international centre for supporting patients and promoting clinical and basic research. The website provides access to resources found on the website.

  • Patients' Centre
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  • Symposia
  • NA News
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Strong response to call for NA research grant applications

NA Research - Copyright the Machine Project @ Flickr

The Advocacy was delighted to receive four strong candidate applications following our November 2013 call for research grant proposals. The Advocacy sought proposals for further research into the causes and possible cures for neuroacanthocytosis and, if all proposals are passed by our evaluation team, we will require significant additional funds to support the researchers' work.

The Advocacy sent the call for research grant proposals to over 60 academic researchers around the world asking them to propose projects for the further study of neuroacanthocytosis.  By the February deadline we received four proposals, all from leading university laboratories active and interested in the causes of the diseases and in finding therapies to help patients.

The proposals came from researchers at the Wellcome Centre for Human Genetics, University of Oxford, England; the University of Hannover Medical School; Dresden Technical University and Radboud UMC, Nijmegen, The Netherlands.

The Scientific Review Panel led by Professor Roger Albin at the University of Michigan has been collecting evaluations from experts in each specific scientific area and will shortly make recommendations about supporting these excellent proposals.  The Advocacy will be seeking additional financial resources $82,000 (£49,000) to fund all of these projects. 

We will keep readers and researchers apprised of next steps. Thank you again to all researchers who responded so enthusiastically to the call.

Image Copyright the Machine Project @ Flickr

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