PubMed · 11633774
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G M Husemann. 1971. [Not Available].. https://pubmed.ncbi.nlm.nih.gov/11633774/
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The International Acute Lymphoblastic Leukemia Working Group, the so-called 'Ponte di Legno Workshop' has led to substantial progress in international collaboration in leukemia research. On April 27-28, 2005, the 8th Meeting was held in Vienna, Austria, to continue the discussions about special common treatment elements in randomized clinical trials, ethical and clinical aspects of therapy. Furthermore, collaborative projects of clinical relevance with special emphasis on rare genetic subtypes of Childhood ALL were established. The following report summarizes the achievements and aspects of possible future cooperation.
Integrating selection and confirmation phases into a single trial can expedite the development of new treatments and allows to use all accumulated data in the decision process. In this paper we review adaptive treatment selection based on combination tests and propose overall adjusted p-values and simultaneous confidence intervals. Also point estimation in adaptive trials is considered. The methodology is illustrated in a detailed example based on an actual planned study.
The gene encoding the active site of the ammonia monooxygenase (amoA) has been exploited as molecular marker for studying ammonia-oxidizing bacteria (AOB) diversity in the environment. Primers amplifying functional genes are often degenerated and therefore produce multiple band patterns, when analysed with the Denaturing gradient gel electrophoresis (DGGE) approach. To improve the DGGE band patterns we have designed new primer sets which contain inosine residues and are specific for the amoA gene. Primers were evaluated analysing pure AOB cultures and two habitats (wastewater treatment plant, soda pools). We found that the application of inosine primers helped to reduce the apparent complexity of the DGGE band pattern. Comparison of sequences from environmental samples using either degenerated or inosine containing amoA primers retrieved both identical and additional sequences. Both primer sets seem to be limited in their ability to detect the presence of all AOB by DGGE analyses.