Augmenting traditional genome-wide association studies (GWAS) with advanced machine learning algorithms can allow the detection of novel signals in available cohorts. We introduce "genome-wide association neural networks (GWANN)" a novel approach that uses neural networks (NNs) to perform a gene-level association study with family history of Alzheimer's disease (AD). In UK Biobank, we defined cases (n = 42 110) as those with AD or family history of AD and sampled an equal number of controls.
View Article and Find Full Text PDFTumor Treating Fields (TTFields) are low-intensity, alternating intermediate-frequency (200 kHz) electrical fields that extend survival of glioblastoma patients receiving maintenance temozolomide (TMZ) chemotherapy. How TTFields exert efficacy on cancer over normal cells or interact with TMZ is unclear. Primary cilia are microtubule-based organelles triggered by extracellular ligands, mechanical and electrical field stimulation and are capable of promoting cancer growth and TMZ chemoresistance.
View Article and Find Full Text PDFNeuropathol Appl Neurobiol
April 2022
Aims: Our understanding of the pathological interactions between amyloidosis and tauopathy in Alzheimer's disease is incomplete. We sought to determine if the relative timing of the amyloidosis and tauopathy is critical for amyloid-enhanced tauopathy.
Methods: We crossed an inducible tauopathy model with two β-amyloid models utilising the doxycycline-repressible transgenic system to modulate timing and duration of human tau expression in the context of amyloidosis and then assessed tauopathy, amyloidosis and gliosis.
Alzheimer's disease (AD) is among the most prevalent neurodegenerative diseases, with brain pathology defined by extracellular amyloid beta deposits and intracellular tau aggregates. To aid in research efforts to improve understanding of this disease, transgenic murine models have been developed that replicate aspects of AD pathology. Familial AD is associated with mutations in the amyloid precursor protein and in the presenilins (associated with amyloidosis); transgenic amyloid models feature one or more of these mutant genes.
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