Batch statistical processing of 1H NMR-derived urinary spectral data. Antti, H., Bollard, M. E., Ebbels, T., Keun, H., Lindon, J. C., Nicholson, J. K., & Holmes, E. Journal of Chemometrics, 16(8-10):461–468, 2002. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/cem.733![Batch statistical processing of 1H NMR-derived urinary spectral data [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Multivariate statistical batch processing (BP) analysis of 1H nuclear magnetic resonance (NMR) urine spectra was employed to establish time-dependent metabolic variations in animals treated with the model hepatotoxin hydrazine. Hydrazine was administered orally to rats (at 90 mg kg−1), and urine samples were collected from dosed rats and matched control animals (n = 5 per group) at time points up to 168 h post-dose. Urine samples were analysed via 1H NMR spectroscopy and partial least squares-based batch processing analysis, treating each rat as an individual batch comprising a series of timed urine samples. A model defining the mean urine profile was established for the control group, and samples obtained from hydrazine-treated animals were assessed using this model. Time-dependent deviations from the control model were evident in all hydrazine-treated animals, and hepatotoxicity was manifested by increased urinary excretion of taurine, creatine, 2-aminoadipate, citrulline and β-alanine together with depletion of urinary levels of citrate, succinate and hippurate. The experiment was repeated at six different pharmaceutical centres in order to assess the robustness of the technology and to establish the natural variability in the data. Results were consistent across the data for all centres. BP plots showed a characteristic pattern for each toxin, allowing the time points at which there were maximum metabolic differences to be determined and providing a means of visualizing the net toxin-induced metabolic movement of urinary metabolism. BP may prove to be a powerful metabonomic tool in defining time-dependent metabolic consequences of toxicity and is an efficient means of visualizing inter-animal variations in response as well as defining multivariate statistical limits of normality in terms of biofluid composition. Copyright © 2002 John Wiley & Sons, Ltd.
@article{antti_batch_2002,
title = {Batch statistical processing of {1H} {NMR}-derived urinary spectral data},
volume = {16},
issn = {1099-128X},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/cem.733},
doi = {10/bn57ft},
abstract = {Multivariate statistical batch processing (BP) analysis of 1H nuclear magnetic resonance (NMR) urine spectra was employed to establish time-dependent metabolic variations in animals treated with the model hepatotoxin hydrazine. Hydrazine was administered orally to rats (at 90 mg kg−1), and urine samples were collected from dosed rats and matched control animals (n = 5 per group) at time points up to 168 h post-dose. Urine samples were analysed via 1H NMR spectroscopy and partial least squares-based batch processing analysis, treating each rat as an individual batch comprising a series of timed urine samples. A model defining the mean urine profile was established for the control group, and samples obtained from hydrazine-treated animals were assessed using this model. Time-dependent deviations from the control model were evident in all hydrazine-treated animals, and hepatotoxicity was manifested by increased urinary excretion of taurine, creatine, 2-aminoadipate, citrulline and β-alanine together with depletion of urinary levels of citrate, succinate and hippurate. The experiment was repeated at six different pharmaceutical centres in order to assess the robustness of the technology and to establish the natural variability in the data. Results were consistent across the data for all centres. BP plots showed a characteristic pattern for each toxin, allowing the time points at which there were maximum metabolic differences to be determined and providing a means of visualizing the net toxin-induced metabolic movement of urinary metabolism. BP may prove to be a powerful metabonomic tool in defining time-dependent metabolic consequences of toxicity and is an efficient means of visualizing inter-animal variations in response as well as defining multivariate statistical limits of normality in terms of biofluid composition. Copyright © 2002 John Wiley \& Sons, Ltd.},
language = {en},
number = {8-10},
urldate = {2021-10-19},
journal = {Journal of Chemometrics},
author = {Antti, H. and Bollard, M. E. and Ebbels, T. and Keun, H. and Lindon, J. C. and Nicholson, J. K. and Holmes, E.},
year = {2002},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/cem.733},
keywords = {batch processing, hepatotoxicity, hydrazine, metabonomics, nuclear magnetic resonance spectroscopy, rat},
pages = {461--468},
}
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Urine samples were analysed via 1H NMR spectroscopy and partial least squares-based batch processing analysis, treating each rat as an individual batch comprising a series of timed urine samples. A model defining the mean urine profile was established for the control group, and samples obtained from hydrazine-treated animals were assessed using this model. Time-dependent deviations from the control model were evident in all hydrazine-treated animals, and hepatotoxicity was manifested by increased urinary excretion of taurine, creatine, 2-aminoadipate, citrulline and β-alanine together with depletion of urinary levels of citrate, succinate and hippurate. The experiment was repeated at six different pharmaceutical centres in order to assess the robustness of the technology and to establish the natural variability in the data. Results were consistent across the data for all centres. 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The experiment was repeated at six different pharmaceutical centres in order to assess the robustness of the technology and to establish the natural variability in the data. Results were consistent across the data for all centres. BP plots showed a characteristic pattern for each toxin, allowing the time points at which there were maximum metabolic differences to be determined and providing a means of visualizing the net toxin-induced metabolic movement of urinary metabolism. BP may prove to be a powerful metabonomic tool in defining time-dependent metabolic consequences of toxicity and is an efficient means of visualizing inter-animal variations in response as well as defining multivariate statistical limits of normality in terms of biofluid composition. Copyright © 2002 John Wiley \\& Sons, Ltd.},\n\tlanguage = {en},\n\tnumber = {8-10},\n\turldate = {2021-10-19},\n\tjournal = {Journal of Chemometrics},\n\tauthor = {Antti, H. and Bollard, M. 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