Carrier detection for adrenoleukodystrophy by high-performance liquid chromatography.

Area of Science:

• Biochemistry
• Genetics
• Analytical Chemistry

Background:

• Adrenoleukodystrophy (ALD) is a genetic disorder affecting the nervous system and adrenal glands.
• Accurate carrier detection is crucial for genetic counseling and family planning.
• Current diagnostic methods for ALD carriers can be complex or lack sensitivity.

Purpose of the Study:

• To evaluate high-performance liquid chromatography (HPLC) methods for detecting very-long-chain fatty acids (VLCFAs) in cultured skin fibroblasts.
• To identify the most effective HPLC method for identifying carriers of the adrenoleukodystrophy (ALD) gene.
• To establish a sensitive and simple method for ALD carrier screening.

Main Methods:

• Lipid extraction from cultured skin fibroblasts of obligate and possible ALD carriers.
• Analysis using four distinct HPLC methods: total esterified fatty acids, total fatty acids with acetonitrile-HCl, total fatty acids with methanolic-HCl, and triacylglycerol fraction.
• Comparison of methods based on simplicity and sensitivity for carrier detection.

Main Results:

• All four evaluated HPLC methods demonstrated applicability for ALD carrier detection.
• The method utilizing total fatty acids with acetonitrile-HCl was identified as the most suitable.
• This method offers superior simplicity and sensitivity compared to the other tested approaches for ALD carrier identification.

Conclusions:

• High-performance liquid chromatography (HPLC) is a viable analytical technique for ALD carrier detection using cultured skin fibroblasts.
• The total fatty acids with acetonitrile-HCl method provides an optimal balance of simplicity and sensitivity for identifying ALD gene carriers.
• This study pioneers the use of HPLC for analyzing cultured skin fibroblasts in the context of ALD carrier detection.