The prenatal diagnosis of adrenoleukodystrophy. Demonstration of increased hexacosanoic acid levels in cultured amniocytes and fetal adrenal gland

Hugo W. Moser, Ann B. Moser, James M. Powers, Harold M. Nitowsky, Herbert H. Schaumburg, Robert A. Norum, Barbara R Migeon

Research output: Contribution to journalArticle

Abstract

Amniocentesis was performed in two women heterozygous for adrenoleukodystrophy (ALD). One fetus was male, and the hexacosanoic acid (C26) level in the cultured amniotic cells was 0.808 μg per mg of protein, compared to 0.104 ± 0.069 (S.D.) in controls. Pregnancy was interrupted at 22 wk gestation. The fetal adrenal cortex showed the ultrastructural inclusions characteristic of ALD and C26 accounted for 35% of the fatty acids in the cholesterol esters extracted from this tissue, more than one thousand times control. The second amniocentesis was performed in a woman who was also heterozygous for an electrophoretic variant of glucose 6- phosphate dehydrogenase (G6PD), and a member of a kindred showing genetic linkage of loci for ALD and G6PD. The fetus was female and the C26 level in cultured amniotic cells was 0.577. Pregnancy was interrupted at 11 wk for reasons unrelated to ALD. Study of C26 level and G6PD type in cultured fetal tissues confirmed heterozygosity for ALD. Speculation: The capacity to identify the adrenoleukodystrophy (ALD) hem- izygote prenatally together with the availability of tests of plasma and/or cultured skin fibroblasts, which can identify most women heterozygote for this disorder, provide the opportunity for families at risk for ALD to have normal children. It is striking that the fetal adrenal was already abnormal, because clinical evidence of adrenal insufficiency would not have been expected until more than 4 years postnatally. Because the abnormal fatty acids are of dietary origin at least in part, it may be possible to diminish or prevent their accumulation by reducing their intake.

Original languageEnglish (US)
Pages (from-to)172-175
Number of pages4
JournalPediatric Research
Volume16
Issue number3
StatePublished - 1982

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Adrenoleukodystrophy
Adrenal Glands
Prenatal Diagnosis
Glucosephosphate Dehydrogenase
Fetus
Amniocentesis
Pregnancy
Cultured Cells
Hemizygote
Fatty Acids
Adrenal Insufficiency
Genetic Linkage
Genetic Loci
Cholesterol Esters
Adrenal Cortex
Heterozygote
hexacosanoic acid
Fibroblasts
Skin

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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The prenatal diagnosis of adrenoleukodystrophy. Demonstration of increased hexacosanoic acid levels in cultured amniocytes and fetal adrenal gland. / Moser, Hugo W.; Moser, Ann B.; Powers, James M.; Nitowsky, Harold M.; Schaumburg, Herbert H.; Norum, Robert A.; Migeon, Barbara R.

In: Pediatric Research, Vol. 16, No. 3, 1982, p. 172-175.

Research output: Contribution to journalArticle

Moser, Hugo W. ; Moser, Ann B. ; Powers, James M. ; Nitowsky, Harold M. ; Schaumburg, Herbert H. ; Norum, Robert A. ; Migeon, Barbara R. / The prenatal diagnosis of adrenoleukodystrophy. Demonstration of increased hexacosanoic acid levels in cultured amniocytes and fetal adrenal gland. In: Pediatric Research. 1982 ; Vol. 16, No. 3. pp. 172-175.
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