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Ablation of B1- and B2-kinin receptors causes cardiac dysfunction through redox-nitroso unbalance

B1- and B2-kinin receptors play a major role in several cardiovascular diseases. Therefore, we aimed to evaluate cardiac functional consequences of B1- and B2-kinin receptors ablation, focusing on the cardiac ROS and NO generation. Cardiac contractility, ROS, and NO generation, and protein expressio...

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Published in:Life sciences (1973) 2019-07, Vol.228, p.121-127
Main Authors: Mesquita, Thássio Ricardo Ribeiro, Miguel-dos-Santos, Rodrigo, Jesus, Itamar Couto Guedes de, de Almeida, Grace Kelly Melo, Fernandes, Valéria Alves, Gomes, Aline Alves Lara, Guatimosim, Silvia, Martins-Silva, Leonardo, Ferreira, Anderson José, Capettini, Luciano dos Santos Aggum, Pesquero, Jorge Luís, Lauton-Santos, Sandra
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cited_by cdi_FETCH-LOGICAL-c2033-71b340de03b00b13f79f97497a90df4d4e27e3d1253c6d1ffa796e13874c8f403
cites cdi_FETCH-LOGICAL-c2033-71b340de03b00b13f79f97497a90df4d4e27e3d1253c6d1ffa796e13874c8f403
container_end_page 127
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container_start_page 121
container_title Life sciences (1973)
container_volume 228
creator Mesquita, Thássio Ricardo Ribeiro
Miguel-dos-Santos, Rodrigo
Jesus, Itamar Couto Guedes de
de Almeida, Grace Kelly Melo
Fernandes, Valéria Alves
Gomes, Aline Alves Lara
Guatimosim, Silvia
Martins-Silva, Leonardo
Ferreira, Anderson José
Capettini, Luciano dos Santos Aggum
Pesquero, Jorge Luís
Lauton-Santos, Sandra
description B1- and B2-kinin receptors play a major role in several cardiovascular diseases. Therefore, we aimed to evaluate cardiac functional consequences of B1- and B2-kinin receptors ablation, focusing on the cardiac ROS and NO generation. Cardiac contractility, ROS, and NO generation, and protein expression were evaluated in male wild-type (WT), B1- (B1−/−) and B2-kinin (B2−/−) knockout mice. Impaired contractility in B1−/− and B2−/− hearts was associated with oxidative stress through upregulation of NADPH oxidase p22phox subunit. B1−/− and B2−/− hearts presented higher NO and peroxynitrite levels than WT. Despite decreased sarcoplasmic reticulum Ca2+ ATPase pump (SERCA2) expression, nitration at tyrosine residues of SERCA2 was markedly higher in B1−/− and B2−/− hearts. B1- and B2-kinin receptors govern ROS generation, while disruption of B1- and B2-kinin receptors leads to impaired cardiac dysfunction through excessive tyrosine nitration on the SERCA2 structure.
doi_str_mv 10.1016/j.lfs.2019.04.062
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ispartof Life sciences (1973), 2019-07, Vol.228, p.121-127
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subjects Ablation
Adenosine triphosphatase
Ca2+-transporting ATPase
Calcium (reticular)
Calcium ions
Cardiac
Cardiac muscle
Cardiovascular diseases
Heart diseases
Kinin receptors
Muscle contraction
NAD(P)H oxidase
NADPH oxidase
Nitration
Nitric oxide
Oxidative stress
Peroxynitrite
Reactive oxygen species
Receptors
Sarcoplasmic reticulum
Tyrosine
Unbalance
title Ablation of B1- and B2-kinin receptors causes cardiac dysfunction through redox-nitroso unbalance
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