ArticleHypertension (Dallas, Tex. : 1979)2015
Proinflammatory cytokines upregulate sympathoexcitatory mechanisms in the subfornical organ of the rat.
Article in Hypertension (Dallas, Tex. : 1979), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.
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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.
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Who cites it
58 citing papers in PubMed, 102 citations in OpenAlex.
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- Beneficial Effects of Omega-3 Fatty Acids on Obesity and Related Metabolic and Chronic Inflammatory Diseases.Nutrients · 2025Review
- Sex differences in the sensitization of prenatally programmed hypertension.Frontiers in physiology · 2025Review
- Placental ischemia-upregulated angiotensin II type 1 receptor in hypothalamic paraventricular nucleus contributes to hypertension in rat.Pflugers Archiv : European journal of physiology · 2024Article
- Maternal exposure to LPS results in overactivation of renal sympathetic nerve activity and hypertension in offspring rats.Hypertension research : official journal of the Japanese Society of Hypertension · 2024Article
- Associations of E-proteinoid 3 receptor genetic polymorphisms with salt sensitivity, longitudinal blood pressure changes, and hypertension incidence in Chinese adults.Journal of clinical hypertension (Greenwich, Conn.) · 2024Article
- The correlation between gut microbiome and atrial fibrillation: pathophysiology and therapeutic perspectives.Military Medical Research · 2023Review
- Sex and molecular differences in cardiovascular parameters at peak influenza disease in mice.Physiological genomics · 2023Article
- TNFα Triggers an Augmented Inflammatory Response in Brain Neurons from Dahl Salt-Sensitive Rats Compared with Normal Sprague Dawley Rats.Cellular and molecular neurobiology · 2022Article
- Angiotensin II inhibits the A-type KAmerican journal of physiology. Regulatory, integrative and comparative physiology · 2022Article
- Predator Scent-Induced Sensitization of Hypertension and Anxiety-like Behaviors.Cellular and molecular neurobiology · 2022Article
- Gut Microbiome and Neuroinflammation in Hypertension.Circulation research · 2022Review
- New Insights Into the Role of Inflammation in the Brain in Heart Failure.Frontiers in physiology · 2022Review
- Maternal Angiotensin II-Induced Hypertension Sensitizes Postweaning High-Fat Diet-Elicited Hypertensive Response Through Increased Brain Reactivity in Rat Offspring.Journal of the American Heart Association · 2021Article
- Paraventricular Nucleus P2X7 Receptors Aggravate Acute Myocardial Infarction Injury via ROS-Induced Vasopressin-V1b Activation in Rats.Neuroscience bulletin · 2021Article
- TNF-α-induced sympathetic excitation requires EGFR and ERK1/2 signaling in cardiovascular regulatory regions of the forebrain.American journal of physiology. Heart and circulatory physiology · 2021Article
- Activation of Orexin 1 Receptors in the Paraventricular Nucleus Contributes to the Development of Deoxycorticosterone Acetate-Salt Hypertension Through Regulation of Vasopressin.Frontiers in physiology · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Our previous work indicated that the subfornical organ (SFO) is an important brain sensor of blood-borne proinflammatory cytokines, mediating their central effects on autonomic and cardiovascular function. However, the mechanisms by which SFO mediates the central effects of circulating proinflammatory cytokines remain unclear. We hypothesized that proinflammatory cytokines act within the SFO to upregulate the expression of excitatory and inflammatory mediators that drive sympathetic nerve activity. In urethane-anesthetized Sprague-Dawley rats, direct microinjection of tumor necrosis factor (TNF)-α (25 ng) or interleukin (IL)-1β (25 ng) into SFO increased mean blood pressure, heart rate, and renal sympathetic nerve activity within 15 to 20 minutes, mimicking the response to systemically administered proinflammatory cytokines. Pretreatment of SFO with microinjections of the angiotensin II type-1 receptor blocker losartan (1 μg), angiotensin-converting enzyme inhibitor captopril (1 μg) or cyclooxygenase-2 inhibitor NS-398 (2 μg) attenuated those responses. Four hours after the SFO microinjection of TNF-α (25 ng) or IL-1β (25 ng), mRNA for angiotensin-converting enzyme, angiotensin II type-1 receptor, TNF-α and the p55 TNF-α receptor, IL-1β and the IL-1R receptor, and cyclooxygenase-2 had increased in SFO, and mRNA for angiotensin-converting enzyme, angiotensin II type-1 receptor, and cyclooxygenase-2 had increased downstream in the hypothalamic paraventricular nucleus. Confocal immunofluorescent images revealed that immunoreactivity for the p55 TNF-α receptor and the IL-1 receptor accessory protein, a subunit of the IL-1 receptor, colocalized with angiotensin-converting enzyme, angiotensin II type-1 receptor-like, cyclooxygenase-2, and prostaglandin E2 EP3 receptor immunoreactivity in SFO neurons. These data suggest that proinflammatory cytokines act within the SFO to upregulate the expression of inflammatory and excitatory mediators that drive sympathetic excitation.
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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.