ArticleHypertension (Dallas, Tex. : 1979)2022
Activation of the Organum Vasculosum of the Lamina Terminalis Produces a Sympathetically Mediated Hypertension.
Article in Hypertension (Dallas, Tex. : 1979), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed, 18 citations in OpenAlex.
- Thirst and blood pressure regulation in a novel angiotensin II receptor type 1a knockout rat.Physiological reports · 2026Article
- Sex differences in central salt sensing in the human brain.American journal of physiology. Regulatory, integrative and comparative physiology · 2025Article
- A novel approach to the prevention and management of cardiovascular diseases: targeting brain-heart axis.European journal of medical research · 2025Review
- Perspective for Modulation of Hypothalamic Neurogenesis: Integrating Anatomical Insights with Exercise and Dietary Interventions.International journal of molecular sciences · 2025Review
- Brain nitric oxide and inflammation in chronic intermittent hypoxia: Contributors to cognitive impairment and hypertension.Brain, behavior, & immunity - health · 2025Review
- RCAN1-Mediated Calcineurin Impairment Drives Sympathetic Outflow in Hypertension.Circulation research · 2025Article
- Chronic intermittent hypoxia and ovariectomy exert independent and region-specific effects on ΔFosB expression and increase blood pressure in female rats.American journal of physiology. Regulatory, integrative and comparative physiology · 2025Article
- Brainstem C1 neurons mediate heart failure decompensation and mortality during acute salt loading.Cardiovascular research · 2025Article
- The organum vasculosum of the lamina terminalis contributes to neurohumoral mechanisms of renal vascular hypertension.American journal of physiology. Regulatory, integrative and comparative physiology · 2025Article
- Neurocardiac Axis Physiology and Clinical Applications.International journal of cardiology. Heart & vasculature · 2024Review
- Acute hypernatremia increases functional connectivity of NaCl sensing regions in the human brain: An fMRI pilot study.Autonomic neuroscience : basic & clinical · 2024Article
- Physiological Mechanisms of Dietary Salt Sensing in the Brain, Kidney, and Gastrointestinal Tract.Hypertension (Dallas, Tex. : 1979) · 2024Review
- Brain α2δ-1-Bound NMDA Receptors Drive Calcineurin Inhibitor-Induced Hypertension.Circulation research · 2023Article
- Altered Neuronal Discharge in the Organum Vasculosum of the Lamina Terminalis Contributes to Dahl Salt-Sensitive Hypertension.Hypertension (Dallas, Tex. : 1979) · 2023Article
- The organum vasculosum of the lamina terminalis and subfornical organ: regulation of thirst.Frontiers in neuroscience · 2023Review
- Calcineurin Controls Hypothalamic NMDA Receptor Activity and Sympathetic Outflow.Circulation research · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
Abstract
Neurons in the organum vasculosum of the lamina terminalis (OVLT) sense extracellular NaCl and angiotensin II concentrations to regulate body fluid homeostasis and arterial blood pressure. Lesion of the anteroventral third ventricular region or OVLT attenuates multiple forms of neurogenic hypertension. However, the extent by which OVLT neurons directly regulate sympathetic nerve activity to produce hypertension is not known. Therefore, the present study tested this hypothesis by using a multi-faceted approach including optogenetics, single-unit and multifiber nerve recordings, and chemogenetics. First, optogenetic activation of OVLT neurons in conscious Sprague-Dawley rats (250-400 g) produced frequency-dependent increases in arterial blood pressure and heart rate. These responses were not altered by the vasopressin receptor antagonist (β-mercapto-β,β-cyclopentamethylenepropionyl1,O-me-Tyr2,Arg8)-vasopressin but eliminated by the ganglionic blocker chlorisondamine. Second, optogenetic activation of OVLT neurons significantly elevated renal, splanchnic, and lumbar sympathetic nerve activity. Third, single-unit recordings revealed optogenetic activation of the OVLT significantly increased the discharge of bulbospinal, sympathetic neurons in the rostral ventrolateral medulla. Lastly, chronic chemogenetic activation of OVLT neurons for 7 days significantly increased 24-hour fluid intake and mean arterial blood pressure. When the 24-hour fluid intake was clamped at baseline intakes, chemogenetic activation of OVLT neurons still produced a similar increase in arterial blood pressure. Neurogenic pressor activity assessed by the ganglionic blocker chlorisondamine was greater at 7 days of OVLT activation versus baseline. Collectively, these findings indicate that acute or chronic activation of OVLT neurons produces a sympathetically mediated hypertension.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.