To Charles River from NIH in 1973 at F32. To N 1966 at F13 from Okamoto. Okamoto, Kyoto School of Medicine, 1963, from outbred Wistar Kyoto male with marked elevation of blood pressure mated to female with slightly elevated blood pressure; brother-sister mating with continued selection for spontaneous hypertension.
the La Jolla colony of SHR rats exhibit a G -> C point mutation at position 1684 of the angiotensinogen gene which appears to affect the secondary structure of the mRNA and strengthen its interaction with a 12 kDa mRNA-stabilizing protein in response to stimulation by angioensin II