Publications by authors named "Bradtke J"

A student's sense of belonging to a university is associated with success in academic setting, happiness, and satisfaction. It is therefore unsurprising that universities commonly strive to improve student measures of belonging especially considering its negative correlation with attrition rates. This study documents the implementation and assessment of a new curricular intervention at Ross University School of Veterinary Medicine (RUSVM) and measures associated changes in students' feeling of belonging to the university and accountability for their success.

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Rarely, immunophenotypically immature B-cell precursor acute lymphoblastic leukemia (BCP-ALL) carries an immunoglobulin- MYC rearrangement (IG-MYC-r). This can result in diagnostic confusion with Burkitt lymphoma/leukemia and use of individualized treatment schedules of unproven efficacy. Here we compare the molecular characteristics of these conditions and investigate historic clinical outcome data.

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There has been an increased interest in evaluating human-animal interactions and assessing the mutual health and wellbeing. In this study, first-year female and male veterinary school students not paired ( = 58) or paired ( = 25) with immature (≤9 mo) donkeys ( = 13) were engaged in three different types of interactions (1st, hands-off remote learning, 2nd, hands-on passive learning, and 3rd, hands-on active learning) for 30 min each during Week 2 (Time 1), Weeks 5-8 (Time 2), and Week 12 (Time 3) over three, 15-week periods. Student psychological data involved the Penn State Worry Questionnaire (PSWQ) scores collected from the interactive (student-donkey pairs) and non-interactive (no student-donkey pairs) groups and modified Comfort from Companion Animals Scale (CCAS) scores collected from the interactive group during Times 1, 2, and 3.

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Aneuploidy is common in paediatric B-cell precursor acute lymphoblastic leukaemia (ALL). Specific subgroups, such as high hyperdiploidy (>50 chromosomes or DNA Index ≥1·16) and hypodiploidy (<45 chromosomes), predict outcome of patients after primary treatment. Whether aneuploidy has a prognostic value for relapsed disease is yet to be determined.

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Background: The EsPhALL2004 randomised trial showed a 10% advantage in disease-free survival for short, discontinuous use of imatinib after induction compared with no use of imatinib in patients with Philadelphia chromosome-positive acute lymphoblastic leukaemia receiving Berlin-Frankfurt-Münster chemotherapy and haemopoietic stem-cell transplantation (HSCT). Other contemporary studies showed an advantage from continuous protracted exposure to imatinib, challenging the indications to transplant. The EsPhALL2010 study was designed to assess whether imatinib given from day 15 of induction and continuously throughout chemotherapy led to a different outcome to that obtained in EsPhALL2004, despite decreasing the number of patients having HSCT.

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We conducted a cytogenetic analysis of 642 children with de novo acute myeloid leukemia (AML) treated on the AML-Berlin-Frankfurt-Münster (BFM) 04 protocol to determine the prognostic value of specific chromosomal aberrations including monosomal (MK), complex (CK) and hypodiploid (HK) karyotypes, individually and in combination. Multivariate regression analysis identified in particular MK (n=22) as a new independent risk factor for poor event-free survival (EFS 23±9% vs 53±2% for all other patients, P=0.0003), even after exclusion of four patients with monosomy 7 (EFS 28±11%, P=0.

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Background: To obtain better insight into the biology of acute myeloid leukemia (AML) in various age groups, this study focused on the genetic changes occurring during a lifetime.

Methods: This study analyzed the relation between age and genetics from birth to 100 years in 5564 patients with de novo AML diagnosed from 1998 to 2012 (1192 patients from nationwide pediatric studies [AML Berlin-Frankfurt-Münster studies 98 and 2004] and 4372 adults registered with the Munich Leukemia Laboratory).

Results: The frequencies of cytogenetic subgroups were age-dependent.

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20% of children suffering from high hyperdiploid acute lymphoblastic leukemia develop recurrent disease. The molecular mechanisms are largely unknown. Here, we analyzed the genetic landscape of five patients at relapse, who developed recurrent disease without prior high-risk indication using whole-exome- and whole-genome-sequencing.

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Typical Burkitt lymphoma is characterized by an IG-MYC translocation and overall low genomic complexity. Clinically, Burkitt lymphoma has a favourable prognosis with very few relapses. However, the few patients experiencing disease progression and/or relapse have a dismal outcome.

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Background: Recently, the UK CCLG and COG reported that an intrachromosomal amplification of chromosome 21 (iAMP21) in acute lymphoblastic leukemia (ALL) loses its adverse prognostic impact with intensified therapy.

Patient And Methods: We evaluated the prognosis of iAMP21 among patients from the ALL-BFM (Berlin-Frankfurt-Münster) 2000 trial with 46 of 2 637 (2%) patients iAMP21+.

Results: 8-year event-free-survival (EFS, 64 ± 8% vs.

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Early recognition of children with chronic phase chronic myeloid leukaemia (CML-CP) at risk for developing a lymphoid blast crisis (LyBC) is desirable, because therapy options in CML-LyBC are limited. We used Multiplex Ligation-dependent Probe Amplification to determine whether B-cell lymphoid leukaemia-specific copy number alterations (CNAs) (e.g.

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Background: B-cell precursor acute lymphoblastic leukemia (BCP-ALL) is characterized by recurrent genetic alterations including chromosomal translocations. The transcription factor PAX5, which is pivotal for B-cell commitment and maintenance, is affected by rearrangements, which lead to the expression of in-frame fusion genes in about 2.5% of the cases.

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Near haploidy (23-29 chromosomes) is a numerical cytogenetic aberration in childhood acute lymphoblastic leukemia (ALL) associated with particularly poor outcome. In contrast, high hyperdiploidy (51-67 chromosomes) has a favorable prognosis. Correct classification and appropriate risk stratification of near haploidy is frequently hampered by the presence of apparently high hyperdiploid clones that arise by endoreduplication of the original near haploid clone.

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Background: The role of microRNAs (miRNAs), important post-transcriptional regulators, in the pathogenesis of acute myeloid leukemia (AML) is just emerging and has been mainly studied in adults. First studies in children investigate single selected miRNAs, however, a comprehensive overview of miRNA expression and function in children and young adults is missing so far.

Methodology/principal Findings: We here globally identified differentially expressed miRNAs between AML subtypes in a survey of 102 children and adolescent.

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The amplification of putative oncogenes is a common finding within the genome of various cancer types. Identification and further targeting of specific junction sites within the sequence of genomic amplicons (amplicon fusion sites, AFS) by PCR (AFS-PCR) is suitable for quantification of minimal residual disease (MRD). This approach has recently been developed and described for MYCN amplified neuroblastomas.

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The prognostic relevance of CRLF2 -rearrangements in childhood acute B-cell precursor lymphoblastic leukaemia (ALL), was assessed by a comparative analysis of 114 non-Down-syndrome patients (99 P2RY8-CRLF2+ , 15 IGH@-CRLF2+ ), 76 from the AIEOP-BFM ALL 2000 and 38 from the MRC ALL97 trials. The 6-year cumulative relapse incidence of P2RY8-CRLF2+ patients treated on the two trials was not statistically different: 0·37 ± 0·06 vs. 0·25 ± 0·08 (P = 0·194).

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PAX5 rearrangements resulting in the expression of fusion transcripts account for 2-3% of childhood B-cell precursor acute lymphoblastic leukemia. Most PAX5 fusions are rare and many of them have only been described in a couple of, or even only in single, cases. We have identified the third case with a PAX5-AUTS2 fusion, which results from unbalanced t(7;9)(q11.

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