ArticleAutonomic neuroscience : basic & clinical2017
Hepatic and renal mechanisms underlying the osmopressor response.
Article in Autonomic neuroscience : basic & clinical, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 9 citations in OpenAlex.
- The Sympathetic Nervous System Promotes Hepatic Lymphangiogenesis, which Is Protective Against Liver Fibrosis.The American journal of pathology · 2023Article
- Independent endothelial functions of PIEZO1 and TRPV4 in hepatic portal vein and predominance of PIEZO1 in mechanical and osmotic stress.Liver international : official journal of the International Association for the Study of the Liver · 2023Article
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4 authors at 2 institutions in 1 country.
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Abstract
Increased blood pressure (BP) is observed in patients with impaired baroreflexes after water drinking. The stimulus for this effect is low blood osmolality, and it has been termed the osmopressor response (OPR). The BP increase is associated with activation of the sympathetic nervous system and a requirement for transient receptor potential vanilloid 4 (TRPV4) channels. However, the mechanisms underlying the OPR are poorly understood. We tested the hypothesis that hypotonicity is sensed in the portal area to initiate the OPR. Sino-aortic denervated mice were used and BP was monitored for 30min after fluid infusion while mice were under anesthesia. Infusion of hypotonic fluid (0.45% saline), but not of isotonic 0.9% saline, directly into the portal vein, produced an immediate OPR (increase in BP with saline 0.45%: 15±13 vs. 0.9%: -7±2mmHg, p=0.003; AUC: 0.45%: 150±99, n=7 vs. 0.9%: -74±60mmHg·min, n=5, p=0.003). However, 0.45% saline was not able to trigger a similar response in TRPV4
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