2017
DOI: 10.3390/ijms18112378
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Alteration of Vascular Responsiveness to Uridine Adenosine Tetraphosphate in Aortas Isolated from Male Diabetic Otsuka Long-Evans Tokushima Fatty Rats: The Involvement of Prostanoids

Abstract: We investigated whether responsiveness to dinucleotide uridine adenosine tetraphosphate (Up4A) was altered in aortas from type 2 diabetic Otsuka Long-Evans Tokushima Fatty (OLETF) rats compared with those from age-matched control Long-Evans Tokushima Otsuka (LETO) rats at the chronic stage of disease. In OLETF aortas, we observed the following: (1) Up4A-induced contractions were lower than those in the LETO aortas under basal conditions, (2) slight relaxation occurred due to Up4A, but this was not observed in … Show more

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Cited by 15 publications
(27 citation statements)
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References 68 publications
(197 reference statements)
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“…Using Otsuka Long-Evans Tokushima Fatty (OLETF) type 2 diabetic rats, a strain that gradually develops high blood glucose after birth with obesity, thereby resembling human type 2 diabetes with obesity [108], Matsumoto et al investigated the vascular effects of Up 4 A in aortas and renal arteries. Up 4 A-induced contraction was decreased in aortas of the OLETF rat as compared to control LETO rats at baseline without preconstriction [72]. The decreased contraction may provide a compensatory mechanism to counteract the hypervascular contractility present in diabetes and hypertension.…”
Section: Diabetesmentioning
confidence: 81%
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“…Using Otsuka Long-Evans Tokushima Fatty (OLETF) type 2 diabetic rats, a strain that gradually develops high blood glucose after birth with obesity, thereby resembling human type 2 diabetes with obesity [108], Matsumoto et al investigated the vascular effects of Up 4 A in aortas and renal arteries. Up 4 A-induced contraction was decreased in aortas of the OLETF rat as compared to control LETO rats at baseline without preconstriction [72]. The decreased contraction may provide a compensatory mechanism to counteract the hypervascular contractility present in diabetes and hypertension.…”
Section: Diabetesmentioning
confidence: 81%
“…The decreased contraction may provide a compensatory mechanism to counteract the hypervascular contractility present in diabetes and hypertension. With elevated tone, Up 4 A produced a mild relaxation in aortas from OLETF rats as compared to the vasoconstrictor effect in LETO rats [72]. In healthy LETO rats in the absence and presence of preconstriction, the endothelium predominantly released vasoconstrictors i.e.…”
Section: Diabetesmentioning
confidence: 84%
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