ArticleJournal of neuroinflammation2015
Brain endogenous angiotensin II receptor type 2 (AT2-R) protects against DOCA/salt-induced hypertension in female rats.
Article in Journal of neuroinflammation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 50 citations in OpenAlex.
- Sex differences in the renal T cell profile in DOCA-salt hypertension are independent of MR activation and increases in blood pressure.American journal of physiology. Renal physiology · 2026Article
- Sex-Specific Exosome Cargo Reveals Potential New Mechanisms of Salt-Sensitive Hypertension.Hypertension (Dallas, Tex. : 1979) · 2026Article
- Current updates on latest basic research of scientific relevance in hypertensive dementia.Hypertension research : official journal of the Japanese Society of Hypertension · 2026Review
- Tumor necrosis factor alpha induces NOX2-dependent reactive oxygen species production in hypothalamic paraventricular nucleus neurons following angiotensin II infusion.Neurochemistry international · 2024Article
- Microvascular angiotensin II type 2 receptor function is enhanced in young females and declines in a model of murine aging.The journal of cardiovascular aging · 2024Article
- Sodium Intake and Disease: Another Relationship to Consider.Nutrients · 2023Review
- Genetic Ablation of Prorenin Receptor in the Rostral Ventrolateral Medulla Influences Blood Pressure and Hydromineral Balance in Deoxycorticosterone-Salt Hypertension.Function (Oxford, England) · 2023Article
- Estrogen receptor beta activity contributes to both tumor necrosis factor alpha expression in the hypothalamic paraventricular nucleus and the resistance to hypertension following angiotensin II in female mice.Neurochemistry international · 2022Article
- Chronic intracerebroventricular infusion of angiotensin II causes dose- and sex-dependent effects on intake behaviors and energy homeostasis in C57BL/6J mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2022Article
- The Angiotensin ATPharmacological reviews · 2022Review
- Anti-Inflammatory Effects of Ang-(1-7) Bone-Targeting Conjugate in an Adjuvant-Induced Arthritis Rat Model.Pharmaceuticals (Basel, Switzerland) · 2022Article
- Renin-a in the Subfornical Organ Plays a Critical Role in the Maintenance of Salt-Sensitive Hypertension.Biomolecules · 2022Article
- Bone-Targeted Delivery of Novokinin as an Alternative Treatment Option for Rheumatoid Arthritis.Pharmaceutics · 2022Article
- Angiotensin II Infusion Results in Both Hypertension and Increased AMPA GluA1 Signaling in Hypothalamic Paraventricular Nucleus of Male but not Female Mice.Neuroscience · 2022Article
- Loss of the Protective Effect of Estrogen Contributes to Maternal Gestational Hypertension-Induced Hypertensive Response Sensitization Elicited by Postweaning High-Fat Diet in Female Offspring.Journal of the American Heart Association · 2022Article
- Tumor Necrosis Factor α Receptor Type 1 Activation in the Hypothalamic Paraventricular Nucleus Contributes to Glutamate Signaling and Angiotensin II-Dependent Hypertension.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021Article
- Brain Angiotensin Type-1 and Type-2 Receptors in Physiological and Hypertensive Conditions: Focus on Neuroinflammation.Current hypertension reports · 2020Review
- Greater T Regulatory Cells in Females Attenuate DOCA-Salt-Induced Increases in Blood Pressure Versus Males.Hypertension (Dallas, Tex. : 1979) · 2020Article
- Brain angiotensin type-1 and type-2 receptors: cellular locations under normal and hypertensive conditions.Hypertension research : official journal of the Japanese Society of Hypertension · 2020Article
- (Pro)renin receptor knockdown in the paraventricular nucleus of the hypothalamus attenuates hypertension development and ATAmerican journal of physiology. Heart and circulatory physiology · 2019Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundRecent studies demonstrate that there are sex differences in the expression of angiotensin receptor type 2 (AT2-R) in the kidney and that AT2-R plays an enhanced role in regulating blood pressure (BP) in females. Also, brain AT2-R activation has been reported to negatively modulate BP and sympathetic outflow. The present study investigated whether the central blockade of endogenous AT2-R augments deoxycorticosterone acetate (DOCA)/salt-induced hypertension in both male and female rats.
methodsAll rats were subcutaneously infused with DOCA combined with 1% NaCl solution as the sole drinking fluid. BP and heart rate (HR) were recorded by telemetric transmitters. To determine the effect of central AT2-R on DOCA/salt-induced hypertension, male and female rats were intracerebroventricularly (icv) infused with AT2-R antagonist, PD123,319, during DOCA/salt treatment. Subsequently, the paraventricular nucleus (PVN) of the hypothalamus, a key cardiovascular regulatory region of the brain, was analyzed by quantitative real-time PCR and Western blot.
resultsDOCA/salt treatment elicited a greater increase in BP in male rats than that in females. Icv infusions of the AT2-R antagonist significantly augmented DOCA/salt pressor effects in females. However, this same treatment had no enhanced effect on DOCA/salt-induced increase in the BP in males. Real-time PCR and Western blot analysis of the female brain revealed that DOCA/salt treatment enhanced the mRNA and protein expression for both antihypertensive components including AT2-R, angiotensin-converting enzyme (ACE)-2, and interleukin (IL)-10 and hypertensive components including angiotensin receptor type 1 (AT1-R), ACE-1, tumor necrosis factor (TNF)-α, and IL-1β, but decreased mRNA expression of renin in the PVN. The central blockade of AT2-R reversed the changes in mRNA and protein expressions of ACE-2, IL-10, and renin, further increased the expressions of TNF-α and IL-1β, and kept higher the expressions of AT1-R, ACE-1, and AT2-R.
conclusionsThese results indicate that endogenous AT2-R activation in the brain plays an important protective role in the development of DOCA/salt-induced hypertension in females, but not in males. The protective effect of AT2-R in females involves regulating the expression of brain renin-angiotensin system components and proinflammatory cytokines.
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