Matches in SemOpenAlex for { <https://semopenalex.org/work/W2189590184> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W2189590184 endingPage "R1202" @default.
- W2189590184 startingPage "R1195" @default.
- W2189590184 abstract "The significance of the sympathetic nervous system (SNS) in regulating peripheral vascular resistance and cardiac function in fish has been well established, whereas its effect on venous function in vivo is unknown. Two protocols were employed in the present study to evaluate SNS effects on the venous system in intact, unanesthetized trout. In the first, trout were instrumented with pressure cannulas in the ventral (P VA ) and dorsal (P DA ) aortas and ductus Cuvier (P VEN ), and cardiac output (CO) was measured with a flow probe around the ventral aorta. Heart rate, stroke volume, and gill and systemic resistances were calculated from the measured parameters. In the second group, vascular capacitance curves were obtained by monitoring mean circulatory filling pressure (P VEN ) during transient interruption of CO and while blood volume was adjusted between 80 and 120% of normal. Unstressed blood volume (USBV) and vascular compliance (C) were derived from the capacitance curves. Infusion of epinephrine (Epi; 3.3 nmol ⋅ min −1 ⋅ kg body wt −1 ) increased P VA , P DA , and P VEN , whereas norepinephrine (NE) infusion (3.3 nmol ⋅ min −1 ⋅ kg body wt −1 ) increased P VA and P DA but did not affect P VEN . Epi (1.0 nmol ⋅ min −1 ⋅ kg body wt −1 ), but not NE (2.6 or 10.4 nmol ⋅ min −1 ⋅ kg body wt −1 ), displaced the capacitance curve to the right and significantly decreased USBV. Inhibition of α 1 -adrenoceptors with prazosin, or ganglionic nicotinic receptor blockade with hexamethonium, produced a left shift in the capacitance curve, and both treatments increased USBV and C. Conversely, the α-adrenoceptor antagonist phentolamine did not effect vascular capacitance. These results show that Epi has potent effects on trout veins in vivo and that it mobilizes blood from the unstressed into the stressed vascular compartment and augments central venous pressure by decreasing venous compliance. These results also show that the SNS is an active effector of venous tone and compliance in trout; this is the first demonstration of tonic regulation of vascular capacitance in any fish." @default.
- W2189590184 created "2016-06-24" @default.
- W2189590184 creator A5003661959 @default.
- W2189590184 creator A5069935336 @default.
- W2189590184 creator A5082025432 @default.
- W2189590184 creator A5086276161 @default.
- W2189590184 date "1998-04-01" @default.
- W2189590184 modified "2023-09-27" @default.
- W2189590184 title "Catecholaminergic regulation of venous function in the rainbow trout" @default.
- W2189590184 cites W1951728655 @default.
- W2189590184 cites W1981925518 @default.
- W2189590184 cites W2023467695 @default.
- W2189590184 cites W2066607149 @default.
- W2189590184 cites W2090633602 @default.
- W2189590184 cites W2098950264 @default.
- W2189590184 cites W2134760434 @default.
- W2189590184 cites W2158265212 @default.
- W2189590184 cites W2183867202 @default.
- W2189590184 cites W2277180658 @default.
- W2189590184 cites W2294770452 @default.
- W2189590184 cites W2502714222 @default.
- W2189590184 doi "https://doi.org/10.1152/ajpregu.1998.274.4.r1195" @default.
- W2189590184 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/9575988" @default.
- W2189590184 hasPublicationYear "1998" @default.
- W2189590184 type Work @default.
- W2189590184 sameAs 2189590184 @default.
- W2189590184 citedByCount "23" @default.
- W2189590184 countsByYear W21895901842012 @default.
- W2189590184 countsByYear W21895901842017 @default.
- W2189590184 countsByYear W21895901842020 @default.
- W2189590184 crossrefType "journal-article" @default.
- W2189590184 hasAuthorship W2189590184A5003661959 @default.
- W2189590184 hasAuthorship W2189590184A5069935336 @default.
- W2189590184 hasAuthorship W2189590184A5082025432 @default.
- W2189590184 hasAuthorship W2189590184A5086276161 @default.
- W2189590184 hasConcept C105702510 @default.
- W2189590184 hasConcept C111566952 @default.
- W2189590184 hasConcept C126322002 @default.
- W2189590184 hasConcept C134018914 @default.
- W2189590184 hasConcept C139940330 @default.
- W2189590184 hasConcept C170493617 @default.
- W2189590184 hasConcept C185592680 @default.
- W2189590184 hasConcept C2775893369 @default.
- W2189590184 hasConcept C2777953023 @default.
- W2189590184 hasConcept C2778198053 @default.
- W2189590184 hasConcept C2778514916 @default.
- W2189590184 hasConcept C37557685 @default.
- W2189590184 hasConcept C42219234 @default.
- W2189590184 hasConcept C513476851 @default.
- W2189590184 hasConcept C71924100 @default.
- W2189590184 hasConcept C72859922 @default.
- W2189590184 hasConcept C80461066 @default.
- W2189590184 hasConcept C84393581 @default.
- W2189590184 hasConceptScore W2189590184C105702510 @default.
- W2189590184 hasConceptScore W2189590184C111566952 @default.
- W2189590184 hasConceptScore W2189590184C126322002 @default.
- W2189590184 hasConceptScore W2189590184C134018914 @default.
- W2189590184 hasConceptScore W2189590184C139940330 @default.
- W2189590184 hasConceptScore W2189590184C170493617 @default.
- W2189590184 hasConceptScore W2189590184C185592680 @default.
- W2189590184 hasConceptScore W2189590184C2775893369 @default.
- W2189590184 hasConceptScore W2189590184C2777953023 @default.
- W2189590184 hasConceptScore W2189590184C2778198053 @default.
- W2189590184 hasConceptScore W2189590184C2778514916 @default.
- W2189590184 hasConceptScore W2189590184C37557685 @default.
- W2189590184 hasConceptScore W2189590184C42219234 @default.
- W2189590184 hasConceptScore W2189590184C513476851 @default.
- W2189590184 hasConceptScore W2189590184C71924100 @default.
- W2189590184 hasConceptScore W2189590184C72859922 @default.
- W2189590184 hasConceptScore W2189590184C80461066 @default.
- W2189590184 hasConceptScore W2189590184C84393581 @default.
- W2189590184 hasIssue "4" @default.
- W2189590184 hasLocation W21895901841 @default.
- W2189590184 hasLocation W21895901842 @default.
- W2189590184 hasOpenAccess W2189590184 @default.
- W2189590184 hasPrimaryLocation W21895901841 @default.
- W2189590184 hasRelatedWork W170334366 @default.
- W2189590184 hasRelatedWork W2135621099 @default.
- W2189590184 hasRelatedWork W2189590184 @default.
- W2189590184 hasRelatedWork W2199216808 @default.
- W2189590184 hasRelatedWork W2262792312 @default.
- W2189590184 hasRelatedWork W2340463036 @default.
- W2189590184 hasRelatedWork W2412502244 @default.
- W2189590184 hasRelatedWork W2414374602 @default.
- W2189590184 hasRelatedWork W3166858254 @default.
- W2189590184 hasRelatedWork W4211195567 @default.
- W2189590184 hasVolume "274" @default.
- W2189590184 isParatext "false" @default.
- W2189590184 isRetracted "false" @default.
- W2189590184 magId "2189590184" @default.
- W2189590184 workType "article" @default.