https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Pathological relationships involving iron and myelin may constitute a shared mechanism linking various rare and common brain diseases https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:30189 Hfe−/−xTfr2mut mouse model. This was accompanied by altered expression of a group of myelin-related genes, including a suite of genes causatively linked to the rare disease family ‘neurodegeneration with brain iron accumulation’ (NBIA). Expanded data mining and ontological analyses have now identified additional myelin-related transcriptome changes in response to brain iron loading. Concordance between the mouse transcriptome changes and human myelin-related gene expression networks in normal and NBIA basal ganglia testifies to potential clinical relevance. These analyses implicate, among others, genes linked to various rare central hypomyelinating leukodystrophies and peripheral neuropathies including Pelizaeus-Merzbacher-like disease and Charcot-Marie-Tooth disease as well as genes linked to other rare neurological diseases such as Niemann-Pick disease. The findings may help understand interrelationships of iron and myelin in more common conditions such as hemochromatosis, multiple sclerosis and various psychiatric disorders.]]> Wed 11 Apr 2018 16:58:00 AEST ]]> Advantages of array-based technologies for pre-emptive pharmacogenomics testing https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:29574 Wed 11 Apr 2018 14:11:09 AEST ]]> Evaluation of different normalization and analysis procedures for Illumina gene expression microarray data involving small changes https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:28613 Wed 11 Apr 2018 09:21:51 AEST ]]> Changes in brain transcripts related to Alzheimer's disease in a model of HFE hemochromatosis are not consistent with increased Alzheimer's disease risk https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20882 -/- mice, a model of hemochromatosis, relative to age- and gender-matched wildtype controls. Classification by functional pathway analysis revealed transcript changes for various genes important in AD. There were decreases of up to 9-fold in transcripts for amyloid-β protein precursor, tau, apolipoprotein E, presenilin 1, and various other γ-secretase components, as well as Notch signaling pathway molecules. This included decreased transcripts for 'hairy and enhancer of split' Hes1 and Hes5, downstream targets of Notch canonical signaling. The reductions in Hes1 and Hes5 transcripts provide evidence that the changes in levels of transcripts for γ-secretase components and Notch signaling genes have functional consequences. The effects appeared relatively specific for AD in that few genes pertaining to other important neurodegenerative diseases, notably Parkinson's disease and Huntington's disease, or to inflammation, oxidative stress, or apoptosis, showed altered transcript levels. The observed effects on AD-related gene transcripts do not appear to be consistent with increased AD risk in HFE hemochromatosis and might, if anything, be predicted to protect against AD to some extent. As Hfe-/- mice did not have higher brain iron levels than wildtype controls, these studies highlight the need for further research in models of more severe hemochromatosis with brain iron loading.]]> Sat 24 Mar 2018 07:57:56 AEDT ]]> Beyond statistics: a new combinatorial approach to identifying biomarker panels for the early detection and diagnosis of Alzheimer's Disease https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:17878 Sat 24 Mar 2018 07:56:13 AEDT ]]> Emerging real-time technologies in molecular medicine and the evolution of integrated 'pharmacomics' approaches to personalized medicine and drug discovery https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:25111 Sat 24 Mar 2018 07:17:15 AEDT ]]> Gene co-expression networks shed light into diseases of brain iron accumulation https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:24321 Sat 24 Mar 2018 07:14:41 AEDT ]]>