Evidence map›Paper›PMID 24623150›Full record

ArticleAmerican journal of physiology. Renal physiology2014

Theoretical assessment of renal autoregulatory mechanisms.

Ioannis Sgouralis, Anita T Layton

Abstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Heterogeneous afferent arteriolopathy: a key concept for understanding blood pressure-dependent renal damage.Hypertension research : official journal of the Japanese Society of Hypertension · 2024
    Review
  5. Article
  6. Review
  7. Article
  8. Pathophysiological mechanisms underlying a rat model of triple whammy acute kidney injury.Laboratory investigation; a journal of technical methods and pathology · 2020
    Article
  9. Article
  10. Sex differences in solute transport along the nephrons: effects of NaAmerican journal of physiology. Renal physiology · 2020
    Article
  11. Sex-specific computational models for blood pressure regulation in the rat.American journal of physiology. Renal physiology · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Renal medullary and urinary oxygen tension during cardiopulmonary bypass in the rat.Mathematical medicine and biology : a journal of the IMA · 2017
    Article
  17. Article
  18. Conduction of feedback-mediated signal in a computational model of coupled nephrons.Mathematical medicine and biology : a journal of the IMA · 2016
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Ioannis SgouralisDepartment of Mathematics, Duke University, Durham, North Carolina io-sgou@math.duke.edu.
Anita T LaytonDepartment of Mathematics, Duke University, Durham, North Carolina.
Duke University · US

Funding

Modeling Solute Transport and Urine Concentrating Mechanism in the Rat KidneyR01DK089066 · NIDDK · DUKE UNIVERSITY · PI LAYTON, ANITA · 2010 to 2014
$1.2M
NIDDK NIH HHS DK-089066
6 · The paper itself

Abstract

A mathematical model of renal hemodynamics was used to assess the individual contributions of the tubuloglomerular feedback (TGF) mechanism and the myogenic response to glomerular filtration rate regulation in the rat kidney. The model represents an afferent arteriole segment, glomerular filtration, and a short loop of Henle. The afferent arteriole model exhibits myogenic response, which is activated by hydrostatic pressure variations to induce changes in membrane potential and vascular muscle tone. The tubule model predicts tubular fluid and Cl(-) transport. Macula densa Cl(-) concentration is sensed as the signal for TGF, which acts to constrict or dilate the afferent arteriole. With this configuration, the model afferent arteriole maintains stable glomerular filtration rate within a physiologic range of perfusion pressure (80-180 mmHg). The contribution of TGF to overall autoregulation is significant only within a narrow band of perfusion pressure values (80-110 mmHg). Model simulations of ramp-like perfusion pressure perturbations agree well with findings by Flemming et al. (Flemming B, Arenz N, Seeliger E, Wronski T, Steer K, Persson PB. J Am Soc Nephrol 12: 2253-2262, 2001), which indicate that changes in vascular conductance are markedly sensitive to pressure velocity. That asymmetric response is attributed to the rate-dependent kinetics of the myogenic mechanism. Moreover, simulations of renal autoregulation in diabetes mellitus predict that, due to the impairment of the voltage-gated Ca(2+) channels of the afferent arteriole smooth muscle cells, the perfusion pressure range in which single-nephron glomerular filtration rate remains stable is reduced by ~70% and that TGF gain is reduced by nearly 40%, consistent with experimental findings.

Indexed as

Models, BiologicalAnimalsHemodynamicsHomeostasisKidneyMembrane PotentialsMuscle, Smooth, Vasculardiabeteshemodynamicsmathematical modelmyogenic responsetubuloglomerular feedback

Identifiers

PMID24623150
PMCPMC4042104
OpenAlexW2325771125

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.