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Rate My Professor Sarah Heath

University of Otago

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5.04/23/2026

A true role model for academic success.

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About Sarah

Sarah Heath is a PhD candidate in the Department of Pathology and Biomedical Science, University of Otago Christchurch, Faculty of Medicine, Health Sciences Division. She holds a Bachelor of Biomedical Sciences with Honours (BBiomedSc(Hons)) from the University of Otago, completing her honours thesis in 2018 on 'Intracellular redox changes during TNFα-mediated necroptosis' under supervisor Mark Hampton. Her current PhD research at the Mātai Hāora - Centre for Redox Biology and Medicine (previously Centre for Free Radical Research) focuses on the molecular mechanisms of p16INK4a amyloid formation. Supervised by Dr Christoph Göbl, Dr Vanessa K. Morris, and collaborators, Heath has demonstrated that oxidation of cysteines in the tumor suppressor p16INK4a promotes rapid formation of amyloid fibrils through a partially structured disulfide-bonded dimeric intermediate. This process is fully reversible upon disulfide reduction, revealing a thiol-dependent redox mechanism that governs amyloid assembly and disassembly. This positions p16INK4a as a functional redox switch, potentially active during the S-phase of the cell cycle, with significant relevance given p16INK4a's frequent mutations in various cancers.