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PubMed · 1879401

Adrenoleukodystrophy.

Abstract

X-linked adrenoleukodystrophy (ALD) is a disorder of very long chain fatty acid (VLCFA) metabolism that can be diagnosed by demonstrating increased levels of VLCFA in plasma and, prenatally, by similar assays in cultured amniocytes or chorionic vilus samples. ALD causes Addison disease frequently in men and occasionally in women. Prompt diagnosis is important for genetic counseling and for the institution of therapies aimed to prevent or ameliorate the progressive neurologic disability that often is associated with this illness.

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BibTeXRIS

H W Moser, A Bergin, S Naidu, P W Ladenson. 1991. Adrenoleukodystrophy.. https://pubmed.ncbi.nlm.nih.gov/1879401/

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Retroviral-mediated adrenoleukodystrophy-related gene transfer corrects very long chain fatty acid metabolism in adrenoleukodystrophy fibroblasts: implications for therapy.

X-linked adrenoleukodystrophy is a demyelinating disorder of the central nervous system with an impaired very long chain fatty acid metabolism. The adrenoleukodystrophy gene encodes a peroxisomal membrane protein that is part of a family of related ATP-binding transporters including the adrenoleukodystrophy-related protein. The adrenoleukodystrophy protein and adrenoleukodystrophy-related protein show 66% identity and have a mirror expression in most mouse tissues. We show that retroviral-mediated adrenoleukodystrophy-related gene transfer corrects very long chain fatty acid accumulation in adrenoleukodystrophy fibroblasts, irrespective of the presence or absence of adrenoleukodystrophy protein. Pharmacological approaches aiming at overexpressing the adrenoleukodystrophy-related gene in the central nervous system of adrenoleukodystrophy patients might thus offer new therapeutic leads.

Adrenoleukodystrophy

Neurophysiologic follow-up of long-term dietary treatment in adult-onset adrenoleukodystrophy.

OBJECTIVE: To monitor the effects of dietary treatment in adult-onset adrenoleukodystrophy (ALD) by means of somatosensory evoked potentials (SEPs) and motor evoked potentials (MEPs). BACKGROUND: SEPs and MEPs have proved useful in revealing signs of progressively severe, central dying-back axonopathy in early stages of adult-onset ALD. METHODS: Eight patients with adult-onset ALD underwent clinical examination, brain and spine MRI, and SEP and MEP studies before and after 3 years of Lorenzo's oil dietary therapy. RESULTS: Before treatment, brain MRI was normal in five patients. Three of these patients had pure spinal SEP abnormalities and in the remaining two patients SEPs showed signs of involvement of both the spinal and cerebral somatosensory tracts. After treatment, the three patients with pure spinal abnormalities showed clinical and neurophysiologic worsening, whereas the two patients with a more advanced stage of disease (exhibited by SEPs) showed substantially unchanged clinical and neurophysiologic features. The patients with abnormal brain MRI at the onset of treatment showed clinical and neurophysiologic worsening. CONCLUSIONS: Lorenzo's oil therapy had no effect on patients with evidence of inflammatory brain lesions. Moreover, in patients without clear signs of inflammatory damage, this treatment does not modify significantly the natural course of the disease. However, because effective treatments should begin before the onset of severe neurologic symptoms, SEPs and MEPs should be considered to evaluate the effectiveness of other experimental treatments in the patient with a negative brain MRI.

Adrenoleukodystrophy