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Optimized design an...
Optimized design and analysis of preclinical intervention studies in vivo
- Article/chapterEnglish2016
Publisher, publication year, extent ...
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2016-08-02
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Springer Science and Business Media LLC,2016
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LIBRIS-ID:oai:gup.ub.gu.se/241177
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https://gup.ub.gu.se/publication/241177URI
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https://doi.org/10.1038/srep30723DOI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Recent reports have called into question the reproducibility, validity and translatability of the preclinical animal studies due to limitations in their experimental design and statistical analysis. To this end, we implemented a matching-based modelling approach for optimal intervention group allocation, randomization and power calculations, which takes full account of the complex animal characteristics at baseline prior to interventions. In prostate cancer xenograft studies, the method effectively normalized the confounding baseline variability, and resulted in animal allocations which were supported by RNA-seq profiling of the individual tumours. The matching information increased the statistical power to detect true treatment effects at smaller sample sizes in two castration-resistant prostate cancer models, thereby leading to saving of both animal lives and research costs. The novel modelling approach and its open-source and web-based software implementations enable the researchers to conduct adequately-powered and fully-blinded preclinical intervention studies, with the aim to accelerate the discovery of new therapeutic interventions.
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Jumppanen, M.
(author)
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Huhtaniemi, R.
(author)
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Fey, V.
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Kaur, A.
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Knuuttila, M.
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Aho, E.
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Oksala, R.
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Westermarck, J.
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Makela, S.
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Poutanen, MattiGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition(Swepub:gu)xpouma
(author)
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Aittokallio, T.
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Göteborgs universitetInstitutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition
(creator_code:org_t)
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In:Scientific Reports: Springer Science and Business Media LLC62045-2322
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Laajala, T. D.
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Jumppanen, M.
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Huhtaniemi, R.
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Fey, V.
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Kaur, A.
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Knuuttila, M.
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show more...
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Aho, E.
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Oksala, R.
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Westermarck, J.
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Makela, S.
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Poutanen, Matti
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Aittokallio, T.
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- MEDICAL AND HEALTH SCIENCES
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and Endocrinology an ...
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University of Gothenburg