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Detection of acylglycines in urine by 1H and 13C NMR for the diagnosis of inborn metabolic diseases

100%

Gryff-Keller A., Kraska-Dziadecka A., Kubica D.

Acta Biochimica Polonica

2012

tom 59

nr 4

A range of inborn metabolic diseases result in abnormal accumulation of acylglycines in body fluids. Therefore, detection of these metabolites is important for diagnostic purposes. 1H and 13C NMR spectroscopies have successfully been applied for both qualitative and quantitative determinations of various acylglycines in urine samples from patients suffering from metabolic diseases connected with excretion of these compounds. Various acylglycines were identified in test urine samples from 15 patients suffering from five different metabolic diseases, providing information which could be crucial for their diagnoses. The paper reports complete 1H and 13C NMR data of 11 acylglycines, which is essential for this type of NMR analysis of body fluids. NMR spectroscopy has been proven effective in determining the presence as well as the levels of acylglycines in urine. The proposed method is rapid, simple and requires minimal sample treatment.

Investigation of a wide spectrum of inherited metabolic disorders by 13C NMR spectroscopy

100%

Bal D., Kraska-Dziadecka A., Gradowska W., Gryff-Keller A.

Acta Biochimica Polonica

2008

tom 55

nr 1

High-resolution 1H NMR spectroscopy of body fluids has proved to be very useful in diagnostics of inherited metabolic diseases, whereas 13C NMR remains almost unexploited. In this paper the application of 13C NMR spectroscopy of fivefold concentrated urine samples for diagnosis of selected metabolic diseases is reported. Various marker metabolites were identified in test urine samples from 33 patients suffering from 10 different diseases, providing information which could be crucial for their diagnoses. Spectra were accumulated for 2 h or overnight when using spectrometers operating at 9.4 or 4.7 T magnetic fields, respectively. Interpretation of the measurement results was based on a comparison of the peak positions in the measured spectrum with reference data. The paper contains a table with 13C NMR chemical shifts of 73 standard compounds. The method can be applied individually or as an auxiliary technique to 1H NMR or any other analytical method.

Ograniczanie wyników

2 Acta Biochimica Polonica

2 Gryff-Keller A.

2 Kraska-Dziadecka A.

1 Bal D.

1 Gradowska W.

1 Kubica D.

1 2012

1 2008

Wyniki wyszukiwania

Detection of acylglycines in urine by 1H and 13C NMR for the diagnosis of inborn metabolic diseases

Investigation of a wide spectrum of inherited metabolic disorders by 13C NMR spectroscopy