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Contact Details

Phone
+64 3 479 8207
Email
rosemary.brown@otago.ac.nz
Position
Associate Professor
Department
Department of Physiology
Qualifications
BSc(Hons) PhD
Research summary
Neuroendocrinology

Research

I am interested in how the changing hormones of pregnancy and lactation act on neural circuitry in the maternal brain to influence behaviour. In particular, I focus on maternal behaviour, a complex set of behaviours displayed by a mother that promote the survival and wellbeing of her offspring.

Our work aims to understand how hormones normally act to direct a mother’s behaviour and how these processes may become disrupted. We investigate hormonal actions on neural circuitry underlying parental behaviour using a range of molecular, immunohistochemical and imaging approaches.

I am also interested in how changes in the ability of hormones to access the brain in different physiological or pathological states might underlie changes in hormone function.

Additional details

Major techniques used in our group:

  • Use of transgenic mouse and viral technology to study how hormones acting in the brain alter behaviour
  • Molecular biology to examine transcriptional changes in neurons during behaviour and In different reproductive states
  • Tacking the movement of labelled hormones from the blood into the brain
  • Immunohistochemistry and in situ hybridisation to map hormone responsive neurons in the brain

Publications

Hackwell, E., Ladyman, S. R., Clarkson, J., McQuillan, H. J., Boehm, U., Herbison, A. E., Brown, R. S. E., & Grattan, D. R. (2025). Prolactin-mediates a lactation-induced suppression of arcuate kisspeptin neuronal activity necessary for lactational infertility in mice. eLIFE, 13, RP94570. doi: 10.7554/eLife.94570.3 Journal - Research Article

Ladyman, S. R., Georgescu, T. R., Stewart, A. M., Khant Aung, Z., Cheong, I., Grattan, D. R., & Brown, R. S. E. (2025). Prolactin modulation of thermoregulatory circuits provides resilience to thermal challenge of pregnancy. Cell Reports, 44(4), 115567. doi: 10.1016/j.celrep.2025.115567 Journal - Research Article

Pal, T., McQuillan, H. J., Wragg, L., & Brown, R. S. E. (2025). Hormonal actions in the medial preoptic area governing parental behaviour: Novel insights from new tools. Endocrinology, 166, bqae152. doi: 10.1210/endocr/bqae152 Journal - Research Article

Wragg, L. J., Cheong, I., McQuillan, J., & Brown, R. S. E. (2024, August-September). Progesterone signalling is required for the timely onset of maternal behaviour. Poster session presented at the 18th New Zealand Medical Sciences Congress (MedSci), Queenstown, New Zealand. Conference Contribution - Poster Presentation (not in published proceedings)

Cheong, I., & Brown, R. S. E. (2024, August-September). Limited bedding and nesting: A model for disrupting early development in pups and postpartum behaviour in dams. Poster session presented at the 18th New Zealand Medical Sciences Congress (MedSci), Queenstown, New Zealand. Conference Contribution - Poster Presentation (not in published proceedings)

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