Specificities of the changes in the systemic hemodynamics indices in the spontaneously hypertensive line SHR rats have been studied in comparison with the normotensive line WKY rats. It was demonstrated that an increase in blood pressure observed in the young hypertensive male rats, which have completed puberty (8 weeks old), is associated with the development of the hyperkinetic type arterial hypertension, which is characterized by increased cardiac minute output. It has been shown that SHR line male rats reveal the establishment of stable arterial hypertension due to a significant increase in the total peripheral resistance with the simultaneous recovery of the cardiac minute output by the 25th week of life. SHR line rats at the age of 15 weeks may be regarded as being in the period of transition from the hyperkinetic type arterial hypertension to stable arterial hypertension.
Russian Journal of Developmental Biology – Springer Journals
Published: Sep 24, 2016
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