ArticleMathematical biosciences2016
Modeling the effects of positive and negative feedback in kidney blood flow control.
Article in Mathematical biosciences, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 9 citations in OpenAlex.
- Terpenes in the management of chronic kidney disease.Naunyn-Schmiedeberg's archives of pharmacology · 2024Review
- Resting-state MRI reveals spontaneous physiological fluctuations in the kidney and tracks diabetic nephropathy in rats.American journal of physiology. Renal physiology · 2024Article
- Mitochondrial Signaling, the Mechanisms of AKI-to-CKD Transition and Potential Treatment Targets.International journal of molecular sciences · 2024Review
- Renal blood flow and oxygenation.Pflugers Archiv : European journal of physiology · 2022Review
- Tubule-vascular feedback in renal autoregulation.American journal of physiology. Renal physiology · 2019Review
- A Novel Mechanism of Renal Microcirculation Regulation: Connecting Tubule-Glomerular Feedback.Current hypertension reports · 2019Review
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Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Blood flow in the mammalian kidney is tightly autoregulated. One of the important autoregulation mechanisms is the myogenic response, which is activated by perturbations in blood pressure along the afferent arteriole. Another is the tubuloglomerular feedback, which is a negative feedback that responds to variations in tubular fluid [Cl(-)] at the macula densa.(1) When initiated, both the myogenic response and the tubuloglomerular feedback adjust the afferent arteriole muscle tone. A third mechanism is the connecting tubule glomerular feedback, which is a positive feedback mechanism located at the connecting tubule, downstream of the macula densa. The connecting tubule glomerular feedback is much less well studied. The goal of this study is to investigate the interactions among these feedback mechanisms and to better understand the effects of their interactions. To that end, we have developed a mathematical model of solute transport and blood flow control in the rat kidney. The model represents the myogenic response, tubuloglomerular feedback, and connecting tubule glomerular feedback. By conducting a bifurcation analysis, we studied the stability of the system under a range of physiologically-relevant parameters. The bifurcation results were confirmed by means of a comparison with numerical simulations. Additionally, we conducted numerical simulations to test the hypothesis that the interactions between the tubuloglomerular feedback and the connecting tubule glomerular feedback may give rise to a yet-to-be-explained low-frequency oscillation that has been observed in experimental records.
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Registered trials
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