Systemic administration of angiotensin II was followed by an increase in systolic BP and HR in rats with carotid glomectomy, the time of attaining maximum values in treated animals was much higher than in sham-operated controls. Injection of angiotensin IV slightly reduced systolic BP in sham-operated animals and increased it in rats with carotid glomectomy. The involvement of the local renin-angiotensin system of the carotid body in systemic mechanisms of hemodynamics regulation is discussed.
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http://dx.doi.org/10.1007/s10517-011-1439-0 | DOI Listing |
Theranostics
January 2025
Department of Vascular Surgery, Zhongshan Hospital Fudan University, Shanghai, 200032, PR China.
Postinterventional restenosis is a major challenge in the treatment of peripheral vascular disease. Current anti-restenosis drugs inhibit neointima hyperplasia but simultaneously impair endothelial repair due to indiscrminative cytotoxity. Stem cell-derived exosomes provide multifaceted therapeutic effects by delivering functional miRNAs to endothelial cells, macrophages, and vascular smooth muscle cells (VSMCs).
View Article and Find Full Text PDFFront Neurol
December 2024
Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China.
Background: Given the lack of models for carotid artery dissections (CAD), we aim to investigate effects of beta-aminopropionitrile (BAPN) combined with physical damage on the arterial walls of rats, and to establish a high-incidence and low-mortality CAD model.
Methods: Sixteen SPF SD rats (3-week-old) were divided into two groups. Group B was given 0.
Brain Struct Funct
December 2024
The Clinical Hospital of Chengdu Brain Science Institute, MOE Key Laboratory for Neuroinformation, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, 611731, China.
Acute cerebral ischemia alters brain network connectivity, leading to notable increases in both anatomical and functional connectivity while observing a reduction in metabolic connectivity. However, alterations of the cerebral blood flow (CBF) based functional connectivity remain unclear. We collected continuous CBF images using laser speckle contrast imaging (LSCI) technology to monitor ischemic occlusion-reperfusion progression through occlusion of the left carotid artery.
View Article and Find Full Text PDFRegen Ther
March 2025
Department of Neurorehabilitation, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou 450007, China.
Spinal cord ischemia/reperfusion (IR) injury (SCII) can cause major autonomic, sensory, and motor damage and loss. The upregulation of Nrf2, a primary orchestrator of the oxidative stress response, has beneficial effects in SCII. Here, we aimed to uncover a SCII-related transcription factor that is able to elevate Nrf2 expression.
View Article and Find Full Text PDFNaunyn Schmiedebergs Arch Pharmacol
December 2024
Department of Human Biology to the Physiology, School of Medicine, International Medical University, 57000, Kuala Lumpur, Malaysia.
Rheumatoid arthritis (RA) can cause blood pressure (BP) elevation in estrogen-deficient, post-menopausal women; however, the underlying mechanisms are not well understood. In this study, the aortic involvement and its underlying mechanisms that contribute to the BP elevation in estrogen-deficient, RA condition were identified. Ovariectomy was performed to create a state of estrogen deficiency and RA was then induced in ovariectomized rats by using incomplete Freund's adjuvant and immune-mediated collagen type-II.
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