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Articles 31 - 33 of 33
Full-Text Articles in Molecular Genetics
Infection With Chlamydia Pneumoniae In Neuronal Cells Alters The Expression Of Genes Involved In Apoptosis And Autophagy Pathways, Annette K. Slutter
Infection With Chlamydia Pneumoniae In Neuronal Cells Alters The Expression Of Genes Involved In Apoptosis And Autophagy Pathways, Annette K. Slutter
PCOM Biomedical Studies Student Scholarship
Dysfunctions in cellular mechanisms such as apoptosis and autophagy have been implicated in the neurodegeneration associated with Alzheimer’s disease (AD). Autophagy in AD pathogenesis has been linked to the endosomal-lysosomal system, which has been shown to play a role in amyloid processing. Studies have suggested that apoptosis may contribute to the neuronal cell loss observed in AD; however, there is no evidence of the apoptotic process leading to terminal completion. Aβ1-42 has been shown to induce apoptosis in neurons and may be an initiating factor in AD. Our previous studies demonstrated that neurons infected with C. pneumoniae are resistant to …
Modeling Measurement Error In Tumor Characterization Studies, Cyril Rakovski, Daniel J. Weisenberger, Paul Marjoram, Peter W. Laird, Kimberly D. Siegmund
Modeling Measurement Error In Tumor Characterization Studies, Cyril Rakovski, Daniel J. Weisenberger, Paul Marjoram, Peter W. Laird, Kimberly D. Siegmund
Mathematics, Physics, and Computer Science Faculty Articles and Research
Background: Etiologic studies of cancer increasingly use molecular features such as gene expression, DNA methylation and sequence mutation to subclassify the cancer type. In large population-based studies, the tumor tissues available for study are archival specimens that provide variable amounts of amplifiable DNA for molecular analysis. As molecular features measured from small amounts of tumor DNA are inherently noisy, we propose a novel approach to improve statistical efficiency when comparing groups of samples. We illustrate the phenomenon using the MethyLight technology, applying our proposed analysis to compare MLH1 DNA methylation levels in males and females studied in the Colon …
Post-Transcriptional Regulation Of Afp And Igm Genes, Lilia M. Turcios
Post-Transcriptional Regulation Of Afp And Igm Genes, Lilia M. Turcios
University of Kentucky Doctoral Dissertations
Gene expression can be regulated at multiple steps once transcription is initiated. I have studied two different gene models, the α-Fetoprotein (AFP) and the immunoglobulin heavy chain (IgM) genes, to better understand post-transcriptional gene regulation mechanisms. The AFP gene is highly expressed during fetal liver development and dramatically repressed after birth. There is a mouse strain-specific difference between adult levels of AFP, with BALB/cJ mice expressing 10 to 20-fold higher levels compared to other mouse strains. BALB/cJ mice express low levels of Zhx2 and thus incompletely repress AFP. Despite differences in steady state AFP mRNA levels in the adult liver …