ArticleHypertension (Dallas, Tex. : 1979)2016
Astrocytes Contribute to Angiotensin II Stimulation of Hypothalamic Neuronal Activity and Sympathetic Outflow.
Article in Hypertension (Dallas, Tex. : 1979), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.
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Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.
- Per- and Polyfluoroalkyl Substances (PFAS) in Integrated Crop-Livestock Systems: Environmental Exposure and Human Health Risks.International journal of environmental research and public health · 2021Pooled it
- Metabolic crosstalk in the ageing brain: astrocyte-neuron coupling as a target for homeostatic restoration and therapy.Translational neurodegeneration · 2026Review
- The brain-heart axis: effects of cardiovascular disease on the CNS and opportunities for central neuromodulation.Nature reviews. Neuroscience · 2026Review
- Article
- Long-acting RNAi therapeutics in hypertension: limitations of single-target AGT silencing and rational multi-target synergistic strategies.Frontiers in pharmacology · 2026Review
- Emerging roles of astrocytes in autonomic control of blood pressure and hypertension.American journal of physiology. Cell physiology · 2025Review
- Effect of electroacupuncture on hypertensive and sympathetic excitability mechanism mediated by the paraventricular nucleus of the hypothalamus in spontaneous hypertensive rats.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2025Article
- Chronic Treatment of a Mouse Model of Cerebral Amyloid Angiopathy and Brain ATbioRxiv : the preprint server for biology · 2025Article
- Central Interaction of 2-Methoxyestradiol and Lipoxygenase in AngII-Hypertension.Hypertension (Dallas, Tex. : 1979) · 2025Article
- Brain-Targeted Reactive Oxygen Species in Hypertension: Unveiling Subcellular Dynamics, Immune Cross-Talk, and Novel Therapeutic Pathways.Antioxidants (Basel, Switzerland) · 2025Review
- Angiotensin-II drives changes in microglia-vascular interactions in rats with heart failure.Communications biology · 2024Article
- Neuroimmunology of Cardiovascular Disease.Current hypertension reports · 2024Review
- Obese Male Mice Exposed to Early Life Stress Display Sympathetic Activation and Hypertension Independent of Circulating Angiotensin II.Journal of the American Heart Association · 2024Article
- Impaired oxytocin signaling in the central amygdala in rats with chronic heart failure.bioRxiv : the preprint server for biology · 2023Article
- Angiotensin II-Mediated Neuroinflammation in the Hippocampus Contributes to Neuronal Deficits and Cognitive Impairment in Heart Failure Rats.Hypertension (Dallas, Tex. : 1979) · 2023Article
- Ethanol Metabolite, Acetate, Increases Excitability of the Central Nucleus of Amygdala Neurons through Activation of NMDA Receptors.ACS chemical neuroscience · 2023Article
- Neurogenic Hypertension, the Blood-Brain Barrier, and the Potential Role of Targeted Nanotherapeutics.International journal of molecular sciences · 2023Review
- Angiotensin II increases respiratory rhythmic activity in the preBötzinger complex without inducing astroglial calcium signaling.Frontiers in cellular neuroscience · 2023Article
- SARS-CoV-2 and Hypertension: Evidence Supporting Invasion into the Brain Via Baroreflex Circuitry and the Role of Imbalanced Renin-Angiotensin-Aldosterone-System.Neuroscience insights · 2023Article
- Hypothalamic astrocytes control systemic glucose metabolism and energy balance.Cell metabolism · 2022Article
1 more citing papers are in PubMed but not listed here.
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6 authors at 1 institution in 1 country.
Funding
Abstract
Angiotensin II (AngII) is a key neuropeptide that acting within the brain hypothalamic paraventricular nucleus regulates neurohumoral outflow to the circulation. Moreover, an exacerbated AngII action within the paraventricular nucleus contributes to neurohumoral activation in hypertension. Although AngII effects involve changes in paraventricular nucleus neuronal activity, the precise underlying mechanisms, cellular targets, and distribution of AngII receptors within the paraventricular nucleus remain largely unknown. Thus, whether AngII effects involve direct actions on paraventricular neurons, or whether it acts via intermediary cells, such as astrocytes, is still controversial. To address this important gap in our knowledge, we used a multidisciplinary approach combining patch-clamp electrophysiology in presympathetic paraventricular neurons and astrocytes, along with in vivo sympathetic nerve recordings and astrocyte-targeted gene manipulations. We present evidence for a novel mechanism underlying central AngII actions, which involves astrocytes as major intermediary cellular targets. We found that AngII type 1 receptor mRNA is expressed in paraventricular astrocytes. Moreover, we report that AngII inhibited glutamate transporter function, increasing in turn extracellular glutamate levels. This resulted in the activation of neuronal extrasynaptic NMDA (N-methyl-d-aspartate) receptors, increased presympathetic neuronal activity, enhanced sympathoexcitatory outflow, and increased blood pressure. Together, our studies support astrocytes as critical intermediary cell types mediating brain AngII regulation of the circulation and indicate that AngII-mediated neuronal and sympathoexcitatory effects are dependent on a unique neuroglial signaling modality involving nonsynaptic glutamate transmission.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.