- The missense mutation in Abcg5 gene in spontaneously hypertensive rats (SHR) segregates with phytosterolemia but not hypertension. Chen, J., Batta, A., Zheng, S., Fitzgibbon, W.R., Ullian, M.E., Yu, H., Tso, P., Salen, G., Patel, S.B. BMC Genet. (2005)