Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning

Abstract Streptococcus uberis is one of the leading pathogens causing mastitis worldwide. Identification of S. uberis strains that fail to respond to treatment with antibiotics is essential for better decision making and treatment selection. We demonstrate that the combination of supervised machine...

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Autores principales: Alexandre Maciel-Guerra, Necati Esener, Katharina Giebel, Daniel Lea, Martin J. Green, Andrew J. Bradley, Tania Dottorini
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:42f3ad06393f4ed2ba628b81430e4b112021-12-02T14:37:14ZPrediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning10.1038/s41598-021-87300-02045-2322https://doaj.org/article/42f3ad06393f4ed2ba628b81430e4b112021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87300-0https://doaj.org/toc/2045-2322Abstract Streptococcus uberis is one of the leading pathogens causing mastitis worldwide. Identification of S. uberis strains that fail to respond to treatment with antibiotics is essential for better decision making and treatment selection. We demonstrate that the combination of supervised machine learning and matrix-assisted laser desorption ionization/time of flight (MALDI-TOF) mass spectrometry can discriminate strains of S. uberis causing clinical mastitis that are likely to be responsive or unresponsive to treatment. Diagnostics prediction systems trained on 90 individuals from 26 different farms achieved up to 86.2% and 71.5% in terms of accuracy and Cohen’s kappa. The performance was further increased by adding metadata (parity, somatic cell count of previous lactation and count of positive mastitis cases) to encoded MALDI-TOF spectra, which increased accuracy and Cohen’s kappa to 92.2% and 84.1% respectively. A computational framework integrating protein–protein networks and structural protein information to the machine learning results unveiled the molecular determinants underlying the responsive and unresponsive phenotypes.Alexandre Maciel-GuerraNecati EsenerKatharina GiebelDaniel LeaMartin J. GreenAndrew J. BradleyTania DottoriniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Alexandre Maciel-Guerra
Necati Esener
Katharina Giebel
Daniel Lea
Martin J. Green
Andrew J. Bradley
Tania Dottorini
Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
description Abstract Streptococcus uberis is one of the leading pathogens causing mastitis worldwide. Identification of S. uberis strains that fail to respond to treatment with antibiotics is essential for better decision making and treatment selection. We demonstrate that the combination of supervised machine learning and matrix-assisted laser desorption ionization/time of flight (MALDI-TOF) mass spectrometry can discriminate strains of S. uberis causing clinical mastitis that are likely to be responsive or unresponsive to treatment. Diagnostics prediction systems trained on 90 individuals from 26 different farms achieved up to 86.2% and 71.5% in terms of accuracy and Cohen’s kappa. The performance was further increased by adding metadata (parity, somatic cell count of previous lactation and count of positive mastitis cases) to encoded MALDI-TOF spectra, which increased accuracy and Cohen’s kappa to 92.2% and 84.1% respectively. A computational framework integrating protein–protein networks and structural protein information to the machine learning results unveiled the molecular determinants underlying the responsive and unresponsive phenotypes.
format article
author Alexandre Maciel-Guerra
Necati Esener
Katharina Giebel
Daniel Lea
Martin J. Green
Andrew J. Bradley
Tania Dottorini
author_facet Alexandre Maciel-Guerra
Necati Esener
Katharina Giebel
Daniel Lea
Martin J. Green
Andrew J. Bradley
Tania Dottorini
author_sort Alexandre Maciel-Guerra
title Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
title_short Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
title_full Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
title_fullStr Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
title_full_unstemmed Prediction of Streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
title_sort prediction of streptococcus uberis clinical mastitis treatment success in dairy herds by means of mass spectrometry and machine-learning
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/42f3ad06393f4ed2ba628b81430e4b11
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