Why the study?
Does experimental reduction of media/lumen ratio via partial ligation alter arterial myogenic properties in SHR and WKY rats?
Population
Spontaneously hypertensive rats (SHRs) and normotensive Wistar-Kyoto (WKY) rats
Comparison
Partial ligation of the external iliac artery vs Control hindlimbs (unligatured arteries)
Design
Preclinical
Authors
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Rat artery data link M/L ratio to myogenic pressure-range shift without peak force change; hypothesis-generating for human remodeling, needs clinical validation.
Does experimental reduction of media/lumen ratio via partial ligation alter arterial myogenic properties in SHR and WKY rats?
Experimental reduction of media/lumen ratio in rat arteries demonstrates that increased M/L ratios shift myogenic activity to higher pressures without increasing peak contractile responses, maintaining wall stress.
Hughes et al. (2004) studied this question.
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