What Loes score warrants urgent hematopoietic stem cell transplant?

Loes score ≤9 with neurological symptoms or score ≤1 with gadolinium enhancement is the optimal transplant window; scores >9 carry worse post-transplant outcomes.

What is the difference between ALD and AMN?

Cerebral ALD (childhood onset) has rapid inflammatory demyelination; adrenomyeloneuropathy (AMN) is the adult form with slowly progressive spinal cord and peripheral nerve involvement without cerebral inflammation.

What plasma VLCFA pattern is characteristic?

Elevated C26:0, C24:0/C22:0 ratio >0.93, and C26:0/C22:0 ratio >0.035 in plasma are diagnostic; combined with ABCD1 sequencing for confirmation.

What is the role of Lorenzo oil in ALD?

Lorenzo oil (4:1 glycerol trioleate:glycerol trierucate) normalizes plasma VLCFA but has NOT been shown to prevent neurological disease in symptomatic patients; may reduce conversion to cerebral ALD in asymptomatic boys.

Why is adrenal insufficiency life-threatening in ALD?

Adrenal cortex accumulates VLCFA causing adrenal insufficiency in ~80% of males; Addisonian crisis triggered by illness can be fatal; all males should be screened and treated with physiological cortisol replacement.

X-Linked Adrenoleukodystrophy Brain MRI Severity Score

Calculates the Loes MRI severity score for X-linked adrenoleukodystrophy to guide stem cell transplantation eligibility, assessing cerebral demyelination extent and location.

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X-Linked Adrenoleukodystrophy Brain MRI Severity Score

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Frequently Asked Questions

What Loes score warrants urgent hematopoietic stem cell transplant?

What is the difference between ALD and AMN?

What plasma VLCFA pattern is characteristic?

What is the role of Lorenzo oil in ALD?

Why is adrenal insufficiency life-threatening in ALD?