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Bioinformatics

Washington University in St. Louis

Antibiotic resistance

Publication Year

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Full-Text Articles in Life Sciences

Understand And Predict Microbiome And Resistome Dynamics In Response To Perturbations Across Diverse Populations And Environments, Manish Boolchandani Jan 2021

Understand And Predict Microbiome And Resistome Dynamics In Response To Perturbations Across Diverse Populations And Environments, Manish Boolchandani

Arts & Sciences Electronic Theses and Dissertations

Complex microbial communities are at the interface of human, animal and environment interconnected ecosystem, where they can move within and between these entities. These microbial communities are mostly beneficial, maintaining the host health and homeostatic state. However, these communities can also serve as reservoirs of antibiotic resistance (AR) genes that may disseminate to pathogen bacteria, compromising the treatment options. Like other microbial communities, human gut microbiome is highly dynamic and can get acutely perturbed with the changes in the habitat, diet, lifestyle and disease. A perturbed gut community structure has profound impact on the host health and physiology. Use of …


Multi-Omic Understanding Of The Evolution Of Xenobiotic Tolerance In Bacterial Isolates And Communities, Tayte Paul Campbell Aug 2019

Multi-Omic Understanding Of The Evolution Of Xenobiotic Tolerance In Bacterial Isolates And Communities, Tayte Paul Campbell

Arts & Sciences Electronic Theses and Dissertations

Xenobiotic compounds are any chemicals that are released into an environment by human action and that occur at concentrations higher than found naturally. Xenobiotics, including aromatic compounds and antibiotics, are recalcitrant to degradation because they are often toxic or mutagenic. Despite this toxicity, bacteria account for a large portion of xenobiotic degradation in the environment. Bacteria are able to adapt to these foreign chemicals, gaining increased levels of tolerance and increased rates of xenobiotic degradation. On the strain level, increased tolerance can be caused by mutations in individual cells or through the acquisition of genes from other cells. At the …