Late-onset distal myopathy, Markesbery-Griggs type
Synonyms: ZASP-related myofibrillar myopathy
A rare genetic non-dystrophic myofibrillar myopathy disorder characterized by late-adult onset of distal and/or proximal limb muscle weakness with initial involvement of posterior lower leg muscles medial gastrocnemius and soleus. Patients present with ankle weakness followed by weakness of finger and wrist extensors and later on of proximal muscles. Ambulation is usually preserved. Late-onset associated cardiomyopathy and/or neuropathy has been reported in a minority of cases.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2024
Newly diagnosed with
Late-onset distal myopathy, Markesbery-Griggs type?
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Advocacy Organizations
Association Aux Pas du Coeur
Our organization wants to raise awareness and recognize rare diseases in Côte d'Ivoire. Our mission is to: Raising awareness and campaigning to help with the diagnosis and free therapeutic care of patients. Request and/or contribute to actions relating to the training of the medical profession so that doctors are able to make a final diagnosis and ensure the continuous follow-up of patients. Create a patient registry to establish very precise statistics of rare diseases in Côte d'Ivoire. Create a close-knit patient community. Break the isolation and despair of sick people and their families. Open up to the world and actively contribute to international research aimed at treatments.
COMBINEDBrain Inc
COMBINEDBrain is a consortium for outcome measures and biomarkers for neurodevelopmental disorders. We are collaborating to cure rare, non-verbal brain disorders.
Moonshots for Unicorns
Curing single-gene disorders
Neuromuscular Disease Foundation
The Neuromuscular Disease Foundation's (NDF) mission is to enhance the quality of the lives of people living with GNE Myopathy (also known as HIBM) through advocacy, education, outreach, and funding clinical research focused on treatments and a cure.
Project CASK
To fund research for treatment and/or a cure for CASK Gene Disorder
Syndromes Without A Name (SWAN) Australia
Provide information, support and advocacy to families caring for a child with an undiagnosed or rare genetic condition.
Clinical Trials
For a list of clinical trials in this disease area, please click here.