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Full-Text Articles in Medicine and Health Sciences

A Dna-Peptide Crosslink (Dpc) Increases Mutagenicity In Sos-Induced Escherichia Coli, Alessandra Bassani May 2023

A Dna-Peptide Crosslink (Dpc) Increases Mutagenicity In Sos-Induced Escherichia Coli, Alessandra Bassani

Honors Scholar Theses

Bacteria, such as Escherichia coli, have an inducible system in response to DNA damage termed the SOS response. This system is activated when the replicative DNA polymerase (Pol) III encounters a lesion, uncouples from DNA helicase, and single-stranded DNA (ssDNA) accumulates at the replication fork. In this study, we investigated DNA-peptide crosslink (DpC), a common lesion that results from cross-linking of proteins or peptides, UV irradiation, and alkylating agents. To increase survival following formation of a lesion, the SOS response can utilize homologous recombination, translesion synthesis (TLS), or excision repair. With TLS, the levels of DNA Pol II, IV, …


Resveratrol, Gentisic Acid, And Flaxseed Oil: Antioxidative Agents Against Hela Cell Proliferation, Carson Krefft, Drake Teal, Raida Sugule, Suhaylah Marty Jan 2023

Resveratrol, Gentisic Acid, And Flaxseed Oil: Antioxidative Agents Against Hela Cell Proliferation, Carson Krefft, Drake Teal, Raida Sugule, Suhaylah Marty

Research and Scholarship Symposium Posters

This study examines how three dietary supplements—resveratrol, gentisic acid, and flaxseed oil—affect the growth of HeLa cells. Resveratrol was predicted to have a more significant inhibitory effect on HeLa cell proliferation than the other test substances. HeLa cells were expanded in T-25 flasks and treated in triplicate within 96 well plates with various supplement variables. The findings demonstrated that resveratrol promoted cell proliferation while gentisic acid and flaxseed oil treatment significantly reduced the viability of HeLa cells. The findings suggest that, in contrast to the hypothesis, resveratrol may not have much of an impact on reducing HeLa cell proliferation. HeLa …