- Progressive alterations in the hypothalamic-pituitary-adrenal axis in the R6/2 transgenic mouse model of Huntington's disease. Björkqvist, M., Petersén, A., Bacos, K., Isaacs, J., Norlén, P., Gil, J., Popovic, N., Sundler, F., Bates, G.P., Tabrizi, S.J., Brundin, P., Mulder, H. Hum. Mol. Genet. (2006)