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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 …
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 …
Role Of Hydrodynamic Behavior Of Dna Molecules In Dielectrophoretic Polarization Under The Action Of An Electric Field, Hui Zhao
Mechanical Engineering Faculty Research
A continuum model is developed to predict the dielectrophoretic polarizability of coiled DNA molecules under the action of an alternating current electric field. The model approximates the coiled DNA molecule as a charged porous spherical particle. The model explains the discrepancies among scaling laws of polarizability of different-sized DNA molecules with contour length and such discrepancies are attributed to different hydrodynamic behavior. With zero or one fitting parameter, theoretical predictions are in good agreement with various experimental data, even though in experiments there are some uncertainties in regard to certain parameters.