Publications
2022
Scholarly publications
Schless, F. A., Siegers, E., & Theelen, M. (2022). Development of a new survival prognosticator model for hospitalized neonatal foals in a European Warmblood population. Abstract from EVC Voorjaarsdagen 2022, Amsterdam, Netherlands.
Floyd, E. F., Easton-Jones, C. A., & Theelen, M. (2022). Systemic antimicrobial therapy in foals. Equine Veterinary Education, 34(1), 49-56. https://doi.org/10.1111/eve.13467
2021
Scholarly publications
Theelen, M., Luiken, R., Wagenaar, J., Sloet van Oldruitenborgh - Oosterbaan, M., Rossen, J. W. A., Schaafstra, FJWC., van Doorn, D., & Zomer, A. (2021). Short- and long-term effect of hospitalization and oral trimethoprim-sulfadiazine administration on the faecal microbiota and resistome in horses. Poster session presented at ECCMID 2021, Austria.
Theelen, M., Luiken, R., Roelfsema, E., Wagenaar, J., Sloet van Oldruitenborgh - Oosterbaan, M., Rossen, J. W. A., & Zomer, A. (2021). Temporal changes in the fecal microbiota and its functional capacity of ponies developing insulin dysregulation. Poster session presented at ACVIM Forum 2021, United States.
Theelen, M. J. P., Luiken, R. E. C., Wagenaar, J. A., Sloet van Oldruitenborgh-Oosterbaan, M. M., Rossen, J. W. A., & Zomer, A. L. (2021). The Equine Faecal Microbiota of Healthy Horses and Ponies in The Netherlands: Impact of Host and Environmental Factors. Animals, 11(6), 1-17. [1762]. https://doi.org/10.3390/ani11061762
Professional publications
Siegers, E., & Theelen, M. (2021). Resultaten van de Veulen Intensive care in Utrecht: Kans op succesvolle afloop steeds groter. Dier en arts.
van Doorn, D., Minderhoud, R., & Theelen, M. (2021). Biodisponibilite des mineraux chez le cheval. In Proceedings du Congrès LTF 2021 (pp. 48-67)
2020
Scholarly publications
Gehring, R., Florschütz, T., Theelen, M. J. P., Verdegaal, E-L., & Vendrig, J. C. (2020). Towards a population pharmacokinetic model of gentamicin in septicaemic neonatal foals.. Abstract from AAVM Congress 2020.
Theelen, M. J. P., Wagenaar, J. A., Oosterbaan, M. M., Rossen, J. W. A., Schaafstra, FJWC., van Doorn, D. A., & Zomer, A. L. (2020). Short- and long-term effect of hospitalization and oral trimethoprim-sulfadiazine administration on the fecal microbiome. Abstract from ECEIM Congress 2020.
Hordijk, J., Farmakioti, E., Smit, L. A., Duim, B., Graveland, H., Theelen, M. J. P., & Wagenaar, J. A. (2020). Fecal carriage of Extended Spectrum ß-Lactamase (ESBL)/AmpC-producing Escherichia coli in horses. Applied and Environmental Microbiology, 86(8), 1-9. [e02590-19]. https://doi.org/10.1128/AEM.02590-19
Theelen, M. J. P., Wilson, W. D., Byrne, B. A., Edman, J. M., Kass, P. H., Mughini Gras, L., & Magdesian, K. G. (2020). Differences in isolation rate and antimicrobial susceptibility of bacteria isolated from foals with sepsis at admission and after ≥48 hours of hospitalization. Journal of Veterinary Internal Medicine. https://doi.org/10.1111/jvim.15692
Professional publications
Siegers, E., Theelen, M., & Sloet van Oldruitenborgh - Oosterbaan, M. (2020). Neonatale isoerythrolyse bij het veulen. Dier en arts.
2019
Scholarly publications
Theelen, M. J. P., Lúthersson, N., Laustsen, L., Edwards, J. E., Kujawa, T. J., Smidt, H., & van Doorn, D. A. (2019, Feb). Free Faecal Water: What do we know and can equine faecal microbiota transplantation be used to manage this issue? (9th ed.) European Equine Health & Nutrition Congress.
https://dspace.library.uu.nl/bitstream/handle/1874/384928/edepotbeheer_t5cb6f3b6_001.pdf?sequence=1
https://dspace.library.uu.nl/bitstream/handle/1874/384928/edepotbeheer_t5cb6f3b6_001.pdf?sequence=1
Gorenberg, E. B., Johnson, A. L., Magdesian, K. G., Bertin, F. R., Costa, L. R. R., Theelen, M. J. P., Durward-Akhurst, S., Cruz-Villagran, C., Carslake, H., Frank, N., & Tomlinson, J. E. (2019). Diagnosis and treatment of confirmed and suspected primary hyperparathyroidism in equids: 17 cases (1999-2016. Equine Veterinary Journal, 52(1), 83-90. https://doi.org/10.1111/evj.13120
Witt, P., Van den Wollenberg, L., Counotte, G., Kosterink, I., & Theelen, M. J. P. (2019). Evaluation of a combined hematology and clinical chemistry blood test to assess fitness in standardbreds used for harness racing (EVC Voorjaarsdagen 2019). Abstract from EVC Voorjaarsdagen 2019, The Hague, Netherlands.
Theelen, M. J. P., Wilson, W. D., Byrne, B. A., Edman, J. M., Kass, P. H., & Magdesian, K. G. (2019). Initial antimicrobial treatment of foals with sepsis: Do our choices make a difference? Veterinary Journal, 243, 74-76. https://doi.org/10.1016/j.tvjl.2018.11.012
Theelen, M. J. P., Beukers, M., Grinwis, G. C. M., & Oosterbaan, M. M. (2019). Chronic iron overload causing haemochromatosis and hepatopathy in 21 horses and one donkey. Equine Veterinary Journal, 51(3), 304-309. https://doi.org/10.1111/evj.13029
Spierenburg, A. J., Theelen, M. J. P., & Oosterbaan, M. M. (2019). Dermatographism in a horse, responsive to cetirizine treatment. Equine Veterinary Education, 31(4), 191-194. https://doi.org/10.1111/eve.12784
Popularising publications
Theelen, M. J. P., Westermann, C. M., & Oosterbaan, M. M. (2019). PSSM bij het paard: wetenschappelijke feiten op een rij. Utrecht Universiteit. https://www.uu.nl/nieuws/pssm-bij-het-paard-wetenschappelijke-feiten-op-een-rij
2018
Scholarly publications
Theelen, M. J. P., Wagenaar, J. A., Oosterbaan, M. M., Rossen, J. W., & Zomer, A. L. (2018). The effect of air exposure on the stability of the microbiome in faecal samples collected from horses (ECEIM Congress 2018). Poster session presented at ECEIM Congress 2018, Ghent, Belgium.
Theelen, M. J. P., Wagenaar, J. A., Oosterbaan, M. M., Rossen, J. W., & Zomer, A. L. (2018). Factors affecting the faecal microbiome of horses and ponies (ECEIM Congress 2018). Poster session presented at ECEIM Congress 2018, Ghent, Belgium.
Boshuizen, B., Ploeg, M., Dewulf, J., Klooster, S., de Bruijn, M., Picavet, M. T., Palmers, K., Plancke, L., Cock, H. D., Theelen, M., & Delesalle, C. (2018). Inflammatory bowel disease (IBD) in horses: a retrospective study exploring the value of different diagnostic approaches. BMC Veterinary Research, 14, [21]. https://doi.org/10.1186/s12917-018-1343-1
Other output
Gorenberg, E. B., Johnson, A. L., Magdesian, K. G., Bertin, F. R., Costa, L. R. R., Theelen, M. J. P., Durward-Akhurst, S., Cruz-Villagran, C., Carslake, H., Frank, N., & Tomlinson, J. E. (2018). Medical and Surgical Treatment of Primary Hyperparathyroidism in 17 Equids (1999-2016) (ACVIM Forum 2018). Abstract from ACVIM Forum 2018, Seattle, United States.
2017
Scholarly publications
Broens, E. M., Kluytmans, J. A. J. W., Weterings, E., Theelen, M. J. P., van Geijlswijk, I. M., & Wagenaar, J. A. (2017). Successful MRSA eradication in a horse and its owner (ECCMID 2017). Abstract from ECCMID 2017, Vienna, Austria.
https://dspace.library.uu.nl/bitstream/handle/1874/360595/P0094.pdf?sequence=1
https://dspace.library.uu.nl/bitstream/handle/1874/360595/P0094.pdf?sequence=1
Kooijman, L. J., James, K., Mapes, S. M., Theelen, M. J. P., & Pusterla, N. (2017). Seroprevalence and risk factors for infection with equine coronavirus in healthy horses in the USA. Veterinary Journal, 220, 91-94. https://doi.org/10.1016/j.tvjl.2017.01.007
Other output
Kooijman, L. J., James, K., Mapes, S. M., Theelen, M. J. P., & Pusterla, N. (2017). Seroprevalence and risk factors for infection with equine coronavirus in healthy horses in the USA (BEVA 2017). Abstract from BEVA Congress 2017, Liverpool, United Kingdom.
Kooijman, L. J., James, K., Mapes, S. M., Theelen, M. J. P., & Pusterla, N. (2017). Seroprevalence and risk factors for infection with equine coronavirus in healthy horses in the USA (EVC Voorjaarsdagen 2017). Abstract from EVC Voorjaarsdagen 2017, Den Haag, Netherlands.
https://dspace.library.uu.nl/bitstream/handle/1874/361279/Seroprevalence_and_risk_factors_for_infection_with_equine_coronavirus_in_healthy_horses_in_the_USA_Kooijman_Lotte_J.pdf?sequence=1
https://dspace.library.uu.nl/bitstream/handle/1874/361279/Seroprevalence_and_risk_factors_for_infection_with_equine_coronavirus_in_healthy_horses_in_the_USA_Kooijman_Lotte_J.pdf?sequence=1
Theelen, M. J. P., Heederik, D. J. J., Mouton, J. W., Wagenaar, J. A., & van Geijlswijk, I. M. (2017). Antimicrobial drug use in horses in the Netherlands: 2012-2014: (EVC Voorjaarsdagen 2017). Abstract from EVC Voorjaarsdagen 2017, Den Haag, Netherlands.
2016
Other output
Theelen, M. J. P. (2016, Nov). Antibioticumgebruik bij paarden: Uitkomsten van een survey onder dierenartspraktijken over de jaren 2012 t/m 2014 . Stichting Diergeneesmiddelen autoriteit (SDa).
https://dspace.library.uu.nl/bitstream/handle/1874/346346/def_rapport_antibioticumgebruik_bij_paarden.pdf?sequence=1
https://dspace.library.uu.nl/bitstream/handle/1874/346346/def_rapport_antibioticumgebruik_bij_paarden.pdf?sequence=1
Theelen, M. J. P., Wilson, W. D., Byrne, B. A., Edman, J. M., & Magdesian, K. G. (2016). Cumulative antimicrobial susceptibility of bacteria isolated from foals with sepsis: 1990-2015 (AAEP Convention 2016). Abstract from AAEP 2016, Orlando, United States.
Theelen, M. J. P., Wilson, W. D., Byrne, B. A., Edman, J. M., & Magdesian, K. G. (2016). Differences in prevalence and susceptibility patterns of bacteria isolated from foals with sepsis cultured at hospital admission and after >48h of hospitalisation: 1990-2015 (ECEIM Congress 2016). Abstract from ECEIM Congress 2016, Helsinki, Finland.
2015
Other output
Theelen, M. J. P., Siegers, E. W., & Ensink, J. M. (2015). Ethmoidal Infection with Aspergillus spp. in 3 Horses: Successful Treatment by Transendoscopic Removal of Mycotic Plaques Alone or in Combination with Systemic Itraconazole. (BEVA Congress 2015). Abstract from BEVA Congress 2015, Liverpool, United Kingdom.
Theelen, M., Siegers, E., & Ensink, J. (2015). Ethmoidal infection with Aspergillus spp. in 3 horses: successful treatment by transendoscopic removal of mycotic plaques alone or in combination with systemic itraconazole (EVC Voorjaarsdagen 2015). Abstract from European Veterinary Conference Voorjaarsdagen , Amsterdam, Netherlands.
2014
Scholarly publications
Theelen, M. J. P., Wilson, W. D., Edman, J. M., Magdesian, K. G., & Kass, P. H. (2014). Temporal trends in prevalence of bacteria isolated from foals with sepsis: 1979-2010. Equine Veterinary Journal, 46(2), 169-173. https://doi.org/10.1111/evj.12131
Theelen, M. J. P., Wilson, W. D., Edman, J. M., Magdesian, K. G., & Kass, P. H. (2014). Temporal trends in in vitro antimicrobial susceptibility patterns of bacteria isolated from foals with sepsis: 1979-2010. Equine Veterinary Journal, 46(2), 161-168. https://doi.org/10.1111/evj.12130
Other output
Spierenburg, A., Theelen, M., & Sloet van Oldruitenborgh - Oosterbaan, M. (2014). Succesfull treatment of dermatographism with cetirizine in a horse (ECEIM Congress 2014). Poster session presented at ECEIM Congress 2014, Prague, Czech Republic.
Theelen, M., Beukers, M., Grinwis, G., & Sloet van Oldruitenborgh - Oosterbaan, M. (2014). Hemochromatosis and liver failure in 11 horses due to chronic iron intoxication. Abstract from ECEIM Congress 2014, Prague, Czech Republic.
2013
Other output
Leendertse, M., Hordijk, J., Timmerman, A., Theelen, M., Spoormakers, T. J. P., Broens, E., & Wagenaar, J. (2013). Cefotaxime resistant Enterobacteriaceae in fecal samples of horses (Wetenschappelijke Voorjaarsvergadering NVvM/NVMM 2013). Abstract from Wetenschappelijke Voorjaarsvergadering NVvM/NVMM, Papendal, Netherlands.
Theelen, M., Wilson, W. D., Edman, J. M., Magdesian, K. G., & Kass, P. H. (2013). Temporal trends in prevalence and in-vitro antimicrobial susceptibility patterns of bacteria isolated from septic foals: 1979-2010 (ACVIM Forum 2013). Abstract from ACVIM Forum 2013, Seattle, United States.
2012
Other output
Beukers, M., Theelen, M., & Veraa, S. (2012). Abdominal computed tomography of a Falabella miniature horse with chronic abdominal pain (EVC Voorjaarsdagen 2012). Abstract from European Veterinary Conference Voorjaarsdagen 2012, Amsterdam, Netherlands.
2011
Other output
Theelen, M., Wilson, W. D., Edman, J. M., & Kass, P. H. (2011). Prevalence of bacteria isolated from septic foals: 1979-2010 (EVECCS Congress 2011). Abstract from EVECCS Congress 2011, Utrecht, Netherlands.