A 5-component mathematical model for salt-induced hypertension in Dahl-S and Dahl-R rats |
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Authors: | Violeta McLoone John RingwoodBruce Van Vliet |
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Affiliation: | a Dept. of Electronic Engineering, National University of Ireland Maynooth, Maynooth, Co. Kildare, Ireland b Biomedical Sciences Division, Memorial University, St. John’s, Newfoundland, Canada |
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Abstract: | Salt-induced hypertension has been demonstrated in a variety of species including rats, monkeys, chimpanzees and humans. Until recently, the multiple phases of this blood pressure increase due to high salt intake had not been closely studied. This work builds upon a recent study, which developed a grey-box multi-component model of salt-induced hypertension in the Dahl-S rat. The previous 3-component model has been extended here to include additional model dynamics to improve the model fit and add new important elements to the model response. The model was optimised using numerical techniques with experimental data from 4 different protocols with Dahl-S, Dahl-R and FF2 hybrid rats. Results show a marked improvement over the previous model and confirm the merit of the 5-component model structure. A comparison between the model dynamics for different rat strains has also been included. |
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Keywords: | Hypertension Mathematical model Salt intake Multiple components Dahl-S Dahl-R |
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