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Krabbe Disease is a rare, inherited, severe neurological disorder. It is a type of leukodystrophy characterized by the progressive degeneration of the myelin sheath (the protective covering of nerve cells) in the brain and nervous system.
read more about krabbe disease ...The cause is a mutation in the GALC gene. This genetic defect causes a deficiency in the enzyme galactosylceramidase, which is needed to break down specific fatty substances. The toxic accumulation of these unprocessed fats destroys the myelin sheath. The disorder is rapidly progressive, causing irreversible damage to the nerves throughout the body.
Symptoms typically begin in infancy, around 3 to 6 months of age. These include severe neurological regression, extreme irritability, muscle stiffness, feeding difficulty, and seizures. The rapid loss of motor and cognitive skills is the defining and devastating feature of the disorder.
Krabbe Disease severely impacts vision due to neurological degeneration. Patients develop progressive optic atrophy (damage and loss of nerve fibers in the optic nerve), leading to severe vision loss and eventual blindness. Uncontrolled eye movements (nystagmus) and difficulty tracking objects are also common symptoms.
Diagnosis is often made via newborn screening. Confirmation involves a blood test to measure the low level of the GALC enzyme and genetic testing to find the specific gene mutation. Magnetic Resonance Imaging is used to visualize the demyelination in the brain.
Necessary treatments focus on symptom management and, if diagnosed early, a hematopoietic stem cell transplant (bone marrow transplant). The transplant is the only intervention that can slow the progression of the disease, but it must be performed before symptoms appear to be most effective.
No, the severe neurological damage is permanent. A stem cell transplant performed early can slow the progression.
Yes, Krabbe Disease is included in newborn screening in many regions due to the severity of its effects.
The infantile form is severe and shortens the lifespan, often with death occurring before age two.
Consult a neurologist for symptoms of extreme irritability, muscle stiffness, and loss of developmental milestones in an infant. Krabbe disease leads to progressive "Optic Atrophy", the death of the optic nerve. Rapid diagnosis via enzyme testing is critical for potential life-extending treatment.
NINDS. Krabbe Disease Information (ninds.nih.gov). 2024.
Mayo Clinic. Krabbe Disease (mayoclinic.org). 2024.
NORD. Krabbe Disease (rarediseases.org). 2024.
StatPearls. Krabbe Disease (ncbi.nlm.nih.gov). 2024.