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Sökning: WFRF:(Giannocco Gisele) > Lateral Preoptic Ar...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003896naa a2200433 4500
001oai:gup.ub.gu.se/306566
003SwePub
008240528s2021 | |||||||||||000 ||eng|
024a https://gup.ub.gu.se/publication/3065662 URI
024a https://doi.org/10.3389/fphys.2021.6827112 DOI
040 a (SwePub)gu
041 a eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Lamy, Gustavo B4 aut
2451 0a Lateral Preoptic Area Neurons Activated by Angiotensin-(1-7) Increase Intravesical Pressure: A Novel Feature in Central Micturition Control.
264 c 2021-07-12
264 1b Frontiers Media SA,c 2021
520 a Central micturition control and urine storage involve a multisynaptic neuronal circuit for the efferent control of the urinary bladder. Electrical stimulation of the lateral preoptic area (LPA) at the level of the decussation of the anterior commissure in cats evokes relaxation of the bladder, whereas ventral stimulation of LPA evokes vigorous contraction. Endogenous Angiotensin-(1-7) [(Ang-(1-7)] synthesis depends on ACE-2, and its actions on binding to Mas receptors, which were found in LPA neurons. We aimed to investigate the Ang-(1-7) actions into the LPA on intravesical pressure (IP) and cardiovascular parameters. The gene and protein expressions of Mas receptors and ACE-2 were also evaluated in the LPA. Angiotensin-(1-7) (5 nmol/μL) or A-779 (Mas receptor antagonist, 50 nmol/μL) was injected into the LPA in anesthetized female Wistar rats; and the IP, mean arterial pressure (MAP), heart rate (HR), and renal conductance (RC) were recorded for 30 min. Unilateral injection of Ang-(1-7) into the LPA increased IP (187.46 ± 37.23%) with peak response at ∼23-25-min post-injection and yielded no changes in MAP, HR, and RC. Unilateral or bilateral injections of A-779 into the LPA decreased IP (-15.88 ± 2.76 and -27.30 ± 3.40%, respectively) and elicited no changes in MAP, HR, and RC. The genes and the protein expression of Mas receptors and ACE-2 were found in the LPA. Therefore, the LPA is an important part of the circuit involved in the urinary bladder control, in which the Ang-(1-7) synthetized into the LPA activates Mas receptors for increasing the IP independent on changes in RC and cardiovascular parameters.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Fysiologi0 (SwePub)301062 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Physiology0 (SwePub)301062 hsv//eng
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Farmakologi och toxikologi0 (SwePub)301022 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Pharmacology and Toxicology0 (SwePub)301022 hsv//eng
653 a ACE-2; intravesical pressure; lateral preoptic area; mas receptor; micturition; urinary bladder
700a Cafarchio, Eduardo M4 aut
700a do Vale, Bárbara4 aut
700a Antonio, Bruno B4 aut
700a Venancio, Daniel P4 aut
700a de Souza, Janaina S4 aut
700a Maciel, Rui M4 aut
700a Giannocco, Gisele4 aut
700a Aronsson, Patrik,d 1983u Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology4 aut0 (Swepub:gu)xaropa
700a Sato, Monica A4 aut
710a Göteborgs universitetb Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi4 org
773t Frontiers in physiologyd : Frontiers Media SAg 12q 12x 1664-042X
856u https://www.frontiersin.org/articles/10.3389/fphys.2021.682711/pdf
8564 8u https://gup.ub.gu.se/publication/306566
8564 8u https://doi.org/10.3389/fphys.2021.682711

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