ArticleCardiovascular research2023
Corticotropin-releasing hormone neurons in the central nucleus of amygdala are required for chronic stress-induced hypertension.
Article in Cardiovascular research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 18 citations in OpenAlex.
- From Molecules to Meaning: Integrating Neuropeptides, Sociostasis, and Hormesis in the Brain-Heart Axis.Current issues in molecular biology · 2026Review
- Chloride homeostasis dysfunction drives hyperactivation of corticotropin-releasing factor-expressing neurons in the amygdala in stress-induced hypertension.The Journal of clinical investigation · 2026Article
- A central CeA-LC-PVH circuit mediates stress-induced osteopenia via skeletal sympathetic nerves in male mice.Science advances · 2025Article
- Targeting Histamine H4 Receptor in the Rostral Ventromedial Medulla to Relieve Hypertension.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Comprehensive Brain-wide Mapping of Afferent and Efferent Nuclei Associated with the Heart in the Mouse.Neuroscience bulletin · 2025Article
- Cardiac vagal motor neurons.Current opinion in neurobiology · 2025Review
- Characteristics of the amygdala and its subregions in premenstrual syndrome/premenstrual dysphoric disorder patients.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2025Review
- Association of weekend warriors and other physical activity patterns with hypertension in NHANES 2007-2018.Scientific reports · 2025Article
- Relations between neurometabolism and clinical biomarkers in patients with metabolic disease.Frontiers in neuroscience · 2025Article
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11 authors at 4 institutions in 1 country.
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Abstract
aimsChronic stress is a well-known risk factor for the development of hypertension. However, the underlying mechanisms remain unclear. Corticotropin-releasing hormone (CRH) neurons in the central nucleus of the amygdala (CeA) are involved in the autonomic responses to chronic stress. Here, we determined the role of CeA-CRH neurons in chronic stress-induced hypertension. METHODS AND
resultsBorderline hypertensive rats (BHRs) and Wistar-Kyoto (WKY) rats were subjected to chronic unpredictable stress (CUS). Firing activity and M-currents of CeA-CRH neurons were assessed, and a CRH-Cre-directed chemogenetic approach was used to suppress CeA-CRH neurons. CUS induced a sustained elevation of arterial blood pressure (ABP) and heart rate (HR) in BHRs, while in WKY rats, CUS-induced increases in ABP and HR quickly returned to baseline levels after CUS ended. CeA-CRH neurons displayed significantly higher firing activities in CUS-treated BHRs than unstressed BHRs. Selectively suppressing CeA-CRH neurons by chemogenetic approach attenuated CUS-induced hypertension and decreased elevated sympathetic outflow in CUS-treated BHRs. Also, CUS significantly decreased protein and mRNA levels of Kv7.2 and Kv7.3 channels in the CeA of BHRs. M-currents in CeA-CRH neurons were significantly decreased in CUS-treated BHRs compared with unstressed BHRs. Blocking Kv7 channel with its blocker XE-991 increased the excitability of CeA-CRH neurons in unstressed BHRs but not in CUS-treated BHRs. Microinjection of XE-991 into the CeA increased sympathetic outflow and ABP in unstressed BHRs but not in CUS-treated BHRs.
conclusionsCeA-CRH neurons are required for chronic stress-induced sustained hypertension. The hyperactivity of CeA-CRH neurons may be due to impaired Kv7 channel activity, which represents a new mechanism involved in chronic stress-induced hypertension.
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