Congratulations to Dr Yixuan Li on earning her PhD. Her thesis, Pharmacodynamics of Intermittent versus Prolonged Infusion of Beta-Lactam Antibiotics in the Treatment of Gram-Negative Bacterial Pneumonia, has advanced our understanding of how antibiotic dosing can be optimised for severe pneumonia, helping address one of the key challenges in modern healthcare: antibiotic resistance.
Read below as Yixuan reflects on her research, experiences, and achievements throughout her PhD journey.
Completing my PhD has been a very rewarding journey. My research focused on improving antibiotic treatment for pneumonia, particularly severe infections caused by Pseudomonas aeruginosa. I investigated how different antibiotic dosing strategies influence drug exposure at the site of lung infection, bacterial killing, and the emergence of antibiotic resistance. My work combined laboratory infection models with pharmacokinetic/pharmacodynamic modelling to explore how antibiotic infusion could be better optimised for patients with pneumonia.
One of the most exciting aspects of my PhD studies is watching the various components of my project come together, from designing and solving problems in laboratory experiments to analysing data, presenting my research findings at conferences, and contributing to the publication of papers. It is particularly encouraging that the research issues I’m addressing have clear clinical relevance and the potential to improve the use of antibiotics in patients with severe pneumonia.
This experience taught me to persevere, adapt to changing circumstances, and accept uncertainty openly. It also made me realize how important collaboration, mentorship, and effective communication are in research.
I am currently looking forward to the next phase of my career and hope to continue my research in the pharmacology and pharmacokinetics of antimicrobial drugs.
