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Developmental models with cell surface receptor densities defining morphological positionMarciniak-Czochra, Anna. January 2004 (has links) (PDF)
Heidelberg, Univ., Diss., 2004. / Computerdatei im Fernzugriff.
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Untersuchungen zur dualen Funktion von [beta]-Catenin [Beta-Catenin] im Wnt-Signalweg und der Cadherin-vermittelten Zelladhäsion bei HydraCramer von Laue, Christoph. January 1900 (has links)
Darmstadt, Techn. Universiẗat, Diss., 2003. / Dateien im PDF-Format.
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Developmental models with cell surface receptor densities defining morphological positionMarciniak-Czochra, Anna. January 2004 (has links) (PDF)
Heidelberg, University, Diss., 2004.
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Enzymaktivitätsbestimmungen für den energieliefernden Stoffwechsel und für membrangebundene Enzyme in Plasmapolypen aus HumanplacentenPandjaitan, Maruli, January 1982 (has links)
Thesis (Doctoral)--Universität Hamburg, 1982.
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Role of apoptosis and epithelial cells in Hydra spermatogenesis and histocompatibility reactionsKuznetsov, Sergey. Unknown Date (has links) (PDF)
University, Diss., 2002--Kiel.
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Analysis of Recurrent Polyp Data in the Presence of MisclassificationGrunow, Nathan Daniel, Grunow, Nathan Daniel January 2016 (has links)
Several standard methods are available to analyze and estimate parameters of count data. None of these methods are designed to account for potential misclassification of the data, where counts are observed or recorded as higher or lower than their actual value. These false counts can result in erroneous conclusions and biased estimates. For this paper, a standard estimation model was modified in several ways in order to incorporate each misclassification mechanism. The probability distribution of the observed data was derived and combined with informative distributions for the misclassification parameters. Once this additional information was taken into account, a distribution of observed data conditional on only the parameter of interest was obtained. By incorporating information about the misclassification mechanisms, the resulting estimation will be more accurate than the standard methods. To demonstrate the flexibility of this approach, data from a count distribution affected by various misclassification mechanisms were simulated. Each dataset was analyzed by several standard estimation methods and an appropriate new method. The results from all simulated data were compared, and the impact of each mechanism in regards to each estimation method was discussed. Data from a colorectal polyp prevention study were also analyzed with all available methods to showcase the incorporation of additional covariates.
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Colorectal polyp outcomes after participation in the seAFOod polyp prevention trial: Evidence of rebound elevated colorectal polyp risk after short-term aspirin useDowning, A., Fenton, H., Nickerson, C., Loadman, Paul, Williams, E.A., Rees, C.J., Brown, L.C., Morris, E.J.A., Hull, M.A. 05 October 2023 (has links)
Yes / The seAFOod polyp prevention trial was a randomised, placebo-controlled, 2 × 2 factorial trial of aspirin 300 mg and eicosapentaenoic acid (EPA) 2000 mg daily in individuals who had a screening colonoscopy in the English Bowel Cancer Screening Programme (BCSP). Aspirin treatment was associated with a 20% reduction in colorectal polyp number at BCSP surveillance colonoscopy 12 months later. It is unclear what happens to colorectal polyp risk after short-term aspirin use.
To investigate colorectal polyp risk according to the original trial treatment allocation, up to 6 years after trial participation.
All seAFOod trial participants were scheduled for further BCSP surveillance and provided informed consent for the collection of colonoscopy outcomes. We linked BCSP colonoscopy data to trial outcomes data.
In total, 507 individuals underwent one or more colonoscopies after trial participation. Individuals grouped by treatment allocation were well matched for clinical characteristics, follow-up duration and number of surveillance colonoscopies. The polyp detection rate (PDR; the number of individuals who had ≥1 colorectal polyp detected) after randomization to placebo aspirin was 71.1%. The PDR was 80.1% for individuals who had received aspirin (odds ratio [OR] 1.13 [95% confidence interval 1.02, 1.24]; p = 0.02). There was no difference in colorectal polyp outcomes between individuals who had been allocated to EPA compared with its placebo (OR for PDR 1.00 [0.91, 1.10]; p = 0.92).
Individuals who received aspirin in the seAFOod trial demonstrated increased colorectal polyp risk during post-trial surveillance. Rebound elevated neoplastic risk after short-term aspirin use has important implications for aspirin cessation driven by age-related bleeding risk. ISRCTN05926847. / Efficacy and Mechanism Evaluation Programme. Grant Number: NIHR128210.
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Analyse von Signalmolekülen bei der Enstehung und Erhaltung des Hydra-KopforganisatorsGuder, Corina. Unknown Date (has links)
Techn. Universiẗat, Diss., 2007--Darmstadt.
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Evolution des programmierten Zelltods biochemische und immunhistochemische Untersuchungen an Caspasen in Hydra /Schmidt, Nikola. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2003--München.
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Molekulare Untersuchungen zur Musterbildung im einfachen Vielzeller HydraAugustin, René Unknown Date (has links) (PDF)
Universiẗat, Diss., 2004--Kiel.
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