Evaluating Different Storage Media for Identification of Taenia saginata Proglottids Using MALDI-TOF Mass Spectrometry Article Swipe
Tabea P. Wendel
,
Maureen Feucherolles
,
Jacqueline Rehner
,
Sven Poppert
,
Jürg Utzinger
,
Sören L. Becker
,
Issa Sy
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/microorganisms9102006
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/microorganisms9102006
Taenia saginata is a helminth that can cause taeniasis in humans and cysticercosis in cattle. A species-specific diagnosis and differentiation from related species (e.g., Taenia solium) is crucial for individual patient management and disease control programs. Diagnostic stool microscopy is limited by low sensitivity and does not allow discrimination between T. saginata and T. solium. Molecular diagnostic approaches are not routinely available outside research laboratories. Recently, matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry (MS) was proposed as a potentially suitable technique for species-specific helminth diagnosis. However, standardized protocols and commercial databases for parasite identification are currently unavailable, and pre-analytical factors have not yet been assessed. The purpose of this study was to employ MALDI-TOF MS for the identification of T. saginata proglottids obtained from a human patient, and to assess the effects of different sample storage media on the technique’s diagnostic accuracy. We generated T. saginata-specific main spectral profiles and added them to an in-house database for MALDI-TOF MS-based diagnosis of different helminths. Based on protein spectra, T. saginata proglottids could be successfully differentiated from other helminths, as well as bacteria and fungi. Additionally, we analyzed T. saginata proglottids stored in (i) LC–MS grade water; (ii) 0.45% sodium chloride; (iii) 70% ethanol; and (iv) 37% formalin after 2, 4, 6, 8, 12, and 24 weeks of storage. MALDI-TOF MS correctly identified 97.2–99.7% of samples stored in water, sodium chloride, and ethanol, with log-score values ≥2.5, thus indicating reliable species identification. In contrast, no protein spectra were obtained for samples stored in formalin. We conclude that MALDI-TOF-MS can be successfully employed for the identification of T. saginata, and that water, sodium chloride, and ethanol are equally effective storage solutions for prolonged periods of at least 24 weeks.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/microorganisms9102006
- https://www.mdpi.com/2076-2607/9/10/2006/pdf
- OA Status
- gold
- Cited By
- 9
- References
- 34
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3201527060
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W3201527060Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/microorganisms9102006Digital Object Identifier
- Title
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Evaluating Different Storage Media for Identification of Taenia saginata Proglottids Using MALDI-TOF Mass SpectrometryWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
-
2021Year of publication
- Publication date
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2021-09-22Full publication date if available
- Authors
-
Tabea P. Wendel, Maureen Feucherolles, Jacqueline Rehner, Sven Poppert, Jürg Utzinger, Sören L. Becker, Issa SyList of authors in order
- Landing page
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https://doi.org/10.3390/microorganisms9102006Publisher landing page
- PDF URL
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https://www.mdpi.com/2076-2607/9/10/2006/pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.mdpi.com/2076-2607/9/10/2006/pdfDirect OA link when available
- Concepts
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Taenia, Mass spectrometry, Identification (biology), Chromatography, Chemistry, Medicine, Biology, Helminths, Botany, ImmunologyTop concepts (fields/topics) attached by OpenAlex
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9Total citation count in OpenAlex
- Citations by year (recent)
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2025: 2, 2023: 2, 2022: 5Per-year citation counts (last 5 years)
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34Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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| corresponding_institution_ids | https://openalex.org/I158937107, https://openalex.org/I1850255, https://openalex.org/I4210140742, https://openalex.org/I91712215 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/16 |
| sustainable_development_goals[0].score | 0.4300000071525574 |
| sustainable_development_goals[0].display_name | Peace, Justice and strong institutions |
| citation_normalized_percentile.value | 0.73438859 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |