Immediate prenatal diagnosis of Zellweger syndrome by direct measurement of very long chain fatty acids in chorionic villus cells

1987 ◽  
Vol 7 (5) ◽  
pp. 349-354 ◽  
Author(s):  
F. Rocchiccioli ◽  
P. Aubourg ◽  
A. Choiset
1988 ◽  
Vol 34 (6) ◽  
pp. 1041-1045 ◽  
Author(s):  
N A Hall ◽  
G W Lynes ◽  
N M Hjelm

Abstract We describe an HPLC method for measurement of ratios of concentrations of very-long-chain fatty acids (VLCFA) in plasma. The method, which involves ultraviolet detection of p-bromophenacyl derivatives of fatty acids, is validated by comparison with a gas chromatographic-mass spectrometric (GC-MS) method. The correlation between the ratios of 24-carbon fatty acids to 22-carbon fatty acids (C24/C22) estimated by the two methods was close (r = 0.976) as was the correlation for the C26/C22 ratios (r = 0.947). Increased VLCFA ratios could be demonstrated by either technique in patients with adrenoleukodystrophy, Zellweger syndrome, and infantile Refsum's disease. The HPLC method also measures phytanate concentrations in plasma. Control VLCFA ratios (for subjects without peroxisomal disorders) obtained by the two methods agree well with those reported by Moser et al. (Ann Neurol 1984; 16:628-41). For subjects younger than one year, ratios for C24/C22 and C26/C22 fatty acids were significantly greater than in older subjects.


1986 ◽  
Vol 161 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Brunhilde Molzer ◽  
Marina Korschinsky ◽  
Hanno Bernheimer ◽  
Rainer Schmid ◽  
Christian Wolf ◽  
...  

1993 ◽  
Vol 16 (1) ◽  
pp. 63-66 ◽  
Author(s):  
C. Jakobs ◽  
C. M. M. van den Heuvel ◽  
F. Stellaard ◽  
C. Largillière ◽  
F. Skovby ◽  
...  

1989 ◽  
Vol 148 (6) ◽  
pp. 581-581 ◽  
Author(s):  
C. Jakobs ◽  
H. ten Brink ◽  
R. M. Kok ◽  
F. Stellaard ◽  
W. J. Kleijer ◽  
...  

1995 ◽  
Vol 15 (5) ◽  
pp. 486-490 ◽  
Author(s):  
R. G. F. Gray ◽  
A. Green ◽  
T. Cole ◽  
V. Davidson ◽  
M. Giles ◽  
...  

Lipids ◽  
2013 ◽  
Vol 48 (12) ◽  
pp. 1253-1267 ◽  
Author(s):  
Kotaro Hama ◽  
Toru Nagai ◽  
Chiho Nishizawa ◽  
Kazutaka Ikeda ◽  
Masashi Morita ◽  
...  

1987 ◽  
Vol 248 (1) ◽  
pp. 61-67 ◽  
Author(s):  
P Sharp ◽  
A Poulos ◽  
A Fellenberg ◽  
D Johnson

The polyenoic fatty acids with carbon chain lengths from 26 to 38 (very-long-chain fatty acids, VLCFA) previously detected in abnormal amounts in Zellweger syndrome brain have been shown to be n-6 derivatives and therefore probably derived by chain elongation of shorter-chain n-6 fatty acids such as linoleic acid and arachidonic acid. Polyenoic VLCFA are also present in Zellweger syndrome liver, but this tissue differs significantly from brain in that the saturated and mono-unsaturated derivatives are the major VLCFA. Zellweger syndrome brain polyenoic VLCFA are present in the neutral lipids predominantly in cholesterol esters, with smaller amounts in the non-esterified fatty acid and triacylglycerol fractions. These fatty acids are barely detectable in any of the major phospholipids, but are present in significant amounts in an unidentified minor phospholipid. The polyenoic VLCFA composition of this lipid differs markedly from that observed for all other lipids, as it contains high proportions of pentaenoic and hexaenoic fatty acids with 34, 36 and 38 carbon atoms. A polar lipid with the chromatographic properties in normal brain contains similar fatty acids. It is postulated that the polyenoic VLCFA may play an important role in normal brain and accumulate in Zellweger syndrome brain because of a deficiency in the peroxisomal beta-oxidation pathway, although a possible peroxisomal role in the control of carbon-chain elongation cannot be discounted.


1993 ◽  
Vol 39 (8) ◽  
pp. 1632-1637 ◽  
Author(s):  
R B Schutgens ◽  
I W Bouman ◽  
A A Nijenhuis ◽  
R J Wanders ◽  
M E Frumau

Abstract Profiles of saturated very-long-chain (> C22) fatty acids were studied in plasma, fibroblasts, erythrocytes, platelets, and leukocytes of patients affected by peroxisomal disorders such as Zellweger syndrome, X-linked adrenoleukodystrophy (X-ALD), and classic rhizomelic chondrodysplasia punctata (RCDP) and in controls. In Zellweger patients, the concentration of hexacosanoic acid (C26:0) and the C26:0/C22:0 ratio are greatly increased in plasma and fibroblasts. However, the plasma concentration of docosanoic acid (C22:0) is greatly decreased. Also in platelets, leukocytes, and to a lesser extent erythrocytes, the C26:0 concentrations and both the C26:0/C22:0 and C24:0/C22:0 ratios are greatly increased. The C24:0/C22:0 ratio is significantly increased in plasma, platelets, and leukocytes, but not in erythrocytes. In X-ALD, the C26:0 concentration and the C26:0/C22:0 and C24:0/C22:0 ratios are significantly increased in plasma, fibroblasts, platelets, and leukocytes, but the erythrocytes show substantial overlap in the 5-90% ranges between controls and patients. In RCDP, slightly increased C26:0 and C26:0/C22:0 ratios are found in erythrocytes, platelets, and leukocytes, but not in plasma and fibroblasts. We conclude that plasma and fibroblasts are the specimens of choice for biochemical diagnosis of Zellweger syndrome and X-ALD, respectively. The slight increase in C26:0 in blood cells of RCDP patients suggests a decreased flux of very-long-chain fatty acids through the peroxisomal beta-oxidation pathway in liver in this genetic disorder.


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