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PubMed This is a summary of 36 peer-reviewed journal articles Updated
Neurology

Understanding NARP Syndrome: Your Comprehensive Guide

At a Glance

NARP syndrome (Neuropathy, Ataxia, and Retinitis Pigmentosa) is a rare mitochondrial disorder caused by MT-ATP6 gene mutations. Inherited maternally, it affects energy production in the nerves and eyes. While there is no cure, symptoms are proactively managed with a specialized medical team.

Receiving a diagnosis of NARP syndrome can feel overwhelming and isolating. Because it is a rare disease—one that many people, including some medical professionals, may never have encountered—it is natural to feel a mix of confusion, fear, and even a strange sense of relief at finally having a name for what you are experiencing.

This guide is designed to empower you with the knowledge you need to navigate this journey. NARP stands for Neuropathy, Ataxia, and Retinitis Pigmentosa [1]. It is a rare mitochondrial disorder, meaning it affects the “power plants” of your cells, leading to an energy shortage in the nerves, brain, and eyes [1].

While there is currently no single cure for NARP, management today is highly proactive. By understanding the biology of the disease and building a strong medical team, you can take control of your care.

Navigate This Guide

01

Symptoms and Progression: Navigating the NARP Journey

Learn about NARP syndrome symptoms, including the core triad of neuropathy, ataxia, and retinitis pigmentosa, plus secondary signs and disease progression.

02

The Biology of NARP: Energy and Genetics

Understand the biology of NARP syndrome. Learn how mutations in the MT-ATP6 gene, mitochondria, and heteroplasmy levels affect your symptoms and diagnosis.

03

Diagnostic Testing: Making Sense of Your Results

Learn how NARP syndrome is diagnosed. Understand mitochondrial DNA testing for the MT-ATP6 gene, heteroplasmy load, and how to read your genetic report.

04

The Path Forward: Your Care Team and Standard of Care

Learn about the standard of care for NARP syndrome. Understand how to build a care team, manage symptoms safely, use the mito cocktail, and pace your energy.

05

Family Planning and the "Genetic Lottery" of NARP

Learn how NARP syndrome is inherited through mitochondrial DNA. Understand the maternal bottleneck effect and explore family planning options like PGD.

Common questions in this guide

What does NARP stand for?
NARP stands for Neuropathy, Ataxia, and Retinitis Pigmentosa. It is named after the three core symptoms that typically affect peripheral nerves, balance and coordination, and vision.
How is NARP syndrome inherited?
NARP is a mitochondrial disorder, meaning it is passed down exclusively from a mother to her children. Fathers who have the mutation cannot pass it on to their offspring.
What gene causes NARP syndrome?
NARP is caused by a mutation in the MT-ATP6 gene. This gene is found in your mitochondrial DNA and is responsible for providing the energy instructions your cells need to function properly.
Is there a cure for NARP syndrome?
There is currently no cure for NARP syndrome, but treatments focus on proactively managing symptoms. Care plans often include specialized supplements, lifestyle pacing to manage energy levels, and ongoing monitoring.
Which specialists should be on my NARP care team?
Because NARP affects multiple body systems, you will need a coordinated multidisciplinary team. This core team typically includes a neurologist, an ophthalmologist, and a medical geneticist to guide your long-term care.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Which specialists (neurology, ophthalmology, genetics) should be part of our core multidisciplinary team?
  2. 2.Are there any clinical trials currently enrolling for MT-ATP6 mutations or mitochondrial disorders?
  3. 3.Who will serve as the 'quarterback' or lead coordinator for my medical care team?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

References

References (1)
  1. 1

    Neuropathy, Ataxia, and Retinitis Pigmentosa Syndrome.

    Finsterer J

    Journal of clinical neuromuscular disease 2023; (24(3)):140-146 doi:10.1097/CND.0000000000000422.

    PMID: 36809201

This page is for informational purposes only and does not replace professional medical advice. Always consult your healthcare provider or a genetic counselor regarding NARP syndrome diagnosis, inheritance, and treatment.

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