» Articles » PMID: 18528487

Regulation of Kidney Function and Metabolism: a Question of Supply and Demand

Overview
Date 2008 Jun 6
PMID 18528487
Citations 24
Authors
Affiliations
Soon will be listed here.
Abstract

Kidney blood flow and glomerular filtration rate (GFR) are maintained relatively constant by hormonal influences and by efficient autoregulation. However, the kidney remains at risk for ischemia and acute kidney injury. Increases in kidney blood flow cause parallel increments in GFR, thereby dictating tubular reabsorption and increased oxygen/metabolic demands. Coordination between kidney blood flow and GFR with tubular reabsorption is maintained by the tubuloglomerular feedback (TGF) system whereby delivery of NaCl to the macula densa varies inversely with nephron GFR. Metabolic products, ATP and adenosine, are the mediators of TGF via afferent arteriolar vasoconstriction, and nitric oxide; COX-2 products and angiotensin II are modulators of acute TGF responses and temporal adaptation of TGF. Oxygen requirements and metabolic efficiency of Na transport in the kidney are significant variables that are regulated by both mediators and modulators of TGF. These metabolic and hormonal substances efficiently regulate both kidney supply and demand.

Citing Articles

Temporary bilateral clamping of renal arteries induces ischemia-reperfusion: A new pig model of acute kidney injury using total intravenous anesthesia.

Guilpin A, Magnin M, Aigle A, Ayoub J, Schuhler T, Lac R Physiol Rep. 2025; 13(3):e70203.

PMID: 39895016 PMC: 11788332. DOI: 10.14814/phy2.70203.


Impact of aging on vascular ion channels: perspectives and knowledge gaps across major organ systems.

Behringer E Am J Physiol Heart Circ Physiol. 2023; 325(5):H1012-H1038.

PMID: 37624095 PMC: 10908410. DOI: 10.1152/ajpheart.00288.2023.


Biomarkers of sickle cell nephropathy in Senegal.

Ndour E, Mnika K, Tall F, Seck M, Ly I, Nembaware V PLoS One. 2022; 17(11):e0273745.

PMID: 36409722 PMC: 9678278. DOI: 10.1371/journal.pone.0273745.


The Protective Role of Prolyl Oligopeptidase (POP) Inhibition in Kidney Injury Induced by Renal Ischemia-Reperfusion.

Casili G, Ardizzone A, Basilotta R, Lanza M, Filippone A, Paterniti I Int J Mol Sci. 2021; 22(21).

PMID: 34769337 PMC: 8584363. DOI: 10.3390/ijms222111886.


Non-invasive investigation of early kidney damage in streptozotocin-induced diabetic rats by intravoxel incoherent motion diffusion-weighted (IVIM) MRI.

Feng Y, Chen X, Cheng Z, Lin Q, Chen P, Si-Tu D BMC Nephrol. 2021; 22(1):321.

PMID: 34565330 PMC: 8474753. DOI: 10.1186/s12882-021-02530-8.


References
1.
De Nicola L, Blantz R, Gabbai F . Nitric oxide and angiotensin II. Glomerular and tubular interaction in the rat. J Clin Invest. 1992; 89(4):1248-56. PMC: 442985. DOI: 10.1172/JCI115709. View

2.
Thomson S, Deng A, Bao D, Satriano J, Blantz R, Vallon V . Ornithine decarboxylase, kidney size, and the tubular hypothesis of glomerular hyperfiltration in experimental diabetes. J Clin Invest. 2001; 107(2):217-24. PMC: 199175. DOI: 10.1172/JCI10963. View

3.
Korner A, Eklof A, Celsi G, Aperia A . Increased renal metabolism in diabetes. Mechanism and functional implications. Diabetes. 1994; 43(5):629-33. DOI: 10.2337/diab.43.5.629. View

4.
Narsipur S, Peterson O, Smith R, Bigby T, Parthasarathy S, Gabbai F . Mechanisms of glomerular immune injury: effects of antioxidant treatment. J Am Soc Nephrol. 2003; 14(7):1748-55. DOI: 10.1097/01.asn.0000073903.29685.67. View

5.
Schnermann J, Levine D . Paracrine factors in tubuloglomerular feedback: adenosine, ATP, and nitric oxide. Annu Rev Physiol. 2002; 65:501-29. DOI: 10.1146/annurev.physiol.65.050102.085738. View