Thesis Abstract

Abstract
Antibiotic-associated diarrhea (AAD) is a common and troublesome complication of antibiotic therapy in hospitalized patients. The disruption of the normal gut microbiota due to antibiotics can lead to the overgrowth of pathogenic bacteria, causing diarrhea and other gastrointestinal symptoms. Probiotics, live microorganisms that confer health benefits to the host when administered in adequate amounts, have shown promise in preventing AAD by restoring the balance of the gut microbiota. This thesis aims to investigate the role of probiotics in preventing AAD in hospitalized patients. Chapter One provides an introduction to the research topic, highlighting the background of the study, the problem statement, objectives, limitations, scope, significance, structure of the thesis, and definitions of key terms. Chapter Two presents a comprehensive literature review on the relationship between antibiotics, gut microbiota, AAD, and the potential mechanisms by which probiotics may prevent AAD. Ten key studies on probiotics and AAD are critically analyzed to provide a solid foundation for the research. Chapter Three details the research methodology, including the study design, participant selection criteria, probiotic intervention protocol, outcome measures, data collection methods, and statistical analysis plan. The chapter also discusses ethical considerations and potential sources of bias in the study. Chapter Four presents the findings of the research, including the impact of probiotics on AAD incidence, severity, and duration in hospitalized patients. The results are discussed in relation to existing literature and implications for clinical practice. Chapter Five offers a conclusion and summary of the thesis, highlighting the key findings, limitations of the study, practical implications, recommendations for future research, and the overall contribution to the field of microbiology and clinical practice. The thesis concludes that probiotics show promise in preventing AAD in hospitalized patients and recommends further research to optimize probiotic interventions for this purpose. Ultimately, this research contributes to the growing body of evidence supporting the use of probiotics as a safe and effective strategy for reducing the burden of AAD in healthcare settings.

Thesis Overview