Rate My Professor Karl Iremonger

Iremonger's research examines how corticotropin-releasing hormone (CRH) neurons in the PVN respond to stress, integrating signals from brainstem and higher brain regions like the prefrontal cortex and amygdala to orchestrate hormonal stress responses. Employing electrophysiology, optogenetics, live-cell imaging, and fibre photometry in awake behaving animals, his lab explores CRH neuron excitability, synaptic plasticity via endocannabinoids and noradrenergic inputs, adaptations to chronic stress, and influences of physiological states such as the estrous cycle. Notable publications include 'Ultradian rhythms of CRHPVN neuron activity, behavior, and stress hormone secretion' (PNAS, 2025), 'Plasticity and neuromodulation of neuroendocrine nerve terminals' (Journal of Neuroendocrinology, 2025), 'The paraventricular nucleus of the hypothalamus: A key node in the control of behavioural states' (Journal of Physiology, 2025), 'Estradiol regulates voltage-gated potassium currents in corticotropin-releasing hormone neurons' (Journal of Experimental Biology, 2023), and 'Regulation of corticotropin-releasing hormone neuronal network activity by noradrenergic stress signals' (Journal of Physiology, 2022). His pioneering discoveries, including novel neuronal communication mechanisms, earned the 2014 Prime Minister's MacDiarmid Emerging Scientist Prize ($200,000) and the 2019 Rowheath Trust Award with Carl Smith Research Medal for outstanding early-career achievements in hypothalamic stress research.