ACE2/Ang-(1-7)/MasR axis on stress behavior and anxiety
Central area | Animal model | Main effects | Reference |
---|---|---|---|
Cerebral ventricles | Ang-(1-7) acute injection to rats | - First evidence of an anxiolytic action of Ang-(1-7) | Holy et al., 1992 [146] |
TGR(ASrAOGEN)680R rats (rats with low brain AGT, expressing an antisense RNA against AGT in glial cells) | - Ang-(1-7) acute injection prevented the anxiety- and depressive-like behavior in transgenic rats | Kangussu et al., 2013 [104] | |
Conscious male Wistar rats with induced tachycardia by acute stress (air jet 10 l/min) | - Ang-(1-7) acute injection decreased by ~45% the tachycardia induced by emotional stress | Lima et al., 2013 [83] | |
Transgenic hypertensive (mRen2)27 rats | - Ang-(1-7) infusion promoted anxiolytic effects- Beneficial effects of Ang-(1-7) were mediated by MasR | Almeida Santos et al. 2016 [147] | |
C57BL/6 mice with enhanced ACE2 activity by central delivery of diminazene aceturate (ACE2 activator) | - ACE2 activation reduced anxiety-like behavior- Beneficial effects of ACE2 activation were mediated by MasR | Wang et al. 2016 [149] | |
Amygdala | Adult male Wistar rats | - Ang-(1-7) acute injection induced anxiolytic effects- Ang-(1-7) increased GPx specific activity and decreased the main peroxidation marker MDA- The majority of the behavioral parameters correlated with markers of oxidative stress | Bild et al., 2013 [145] |
Wistar rats submitted to stress trials | - Ang-(1-7) prevented the tachycardia and the pressor response induced by acute stress- Beneficial effects of Ang-(1-7) were mediated by MasR | Oscar et al., 2015 [121] | |
Hippocampus | Mas–/– mice | - Mas-deficient animals showed increased anxiety | Walther et al., 1998 [148] |
GPx: glutathione peroxidase; MDA: malondialdehyde
NLRM wrote the first draft of the manuscript; AMP wrote sections of the manuscript; MMG conceived the idea, wrote sections of the manuscript and critically reviewed the manuscript. All authors contributed to manuscript revision, read and approved the submitted version.
The authors declare that they have no conflicts of interest.
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© The Author(s) 2021.