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Mitochondrial Complex I Deficiency Nuclear Type 28 C4748827

Published: July 22, 2026Updated: August 20, 2026

A rare genetic disorder impairing mitochondria's ability to produce energy. It typically affects children and can involve multiple organs. Treatment focuses on managing symptoms and supportive care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
E88.9
ICD-11
5A00.0
Body system
metabolic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Cardiomyopathy

!

Sensorineural hearing loss

Fatigue or weight changes

(metabolic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Growth failure

(metabolic)

Exercise intolerance

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Branched-Chain Amino Acid Supplementation

BCAA supplementation may support mitochondrial protein synthesis and provide alternative energy substrates. Used as adjunctive therapy to improve muscle metabolism in complex I deficiency.

dietary
2

Medication management with follow-up care

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Neurodevelopmental Assessment Program

Regular neurological and developmental assessments to monitor for progressive encephalopathy, ataxia, or cognitive decline. Includes neuro-imaging and neuropsychological testing as indicated.

monitoring

Additional treatment options

Alpha-Lipoic Acid Therapy

Alpha-lipoic acid acts as a mitochondrial antioxidant and electron carrier, potentially supporting complex I function. May help reduce reactive oxygen species that damage impaired mitochondria.

complementary

Mitochondrial Myopathy Supportive Care

Pharmacological management of myopathic symptoms including muscle pain, weakness, and fatigue using agents that minimize mitochondrial burden. Treatment individualized based on symptom presentation.

medication

Energy Conservation Strategies

Lifestyle modifications including pacing activities, scheduled rest periods, and environmental adaptations to prevent energy depletion and reduce metabolic stress on compromised mitochondria.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Mitochondrial Complex I Deficiency Nuclear Type 28 C4748827?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Mitochondrial Complex I Deficiency Nuclear Type 28 C4748827. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy