When the Heart Hurts the Kidneys: From Flow to Translational Future

Kevin G Burfeind1, Daiki Aomura1, Jessica F Hebert2

  • 1Department of Anesthesiology & Perioperative Medicine, Oregon Health and Science University, Portland, OR.

Seminars in Nephrology
|September 11, 2025
PubMed

Insights

Acute cardiorenal syndrome type 1 (CRS1) impacts cardiovascular disease outcomes. Emerging research highlights the roles of sex differences, immune responses, and kidney tubule function in CRS1, suggesting new avenues for investigation.

Area of Science:

  • Nephrology
  • Cardiology
  • Immunology

Background:

  • Acute cardiorenal syndrome type 1 (CRS1) is a frequent complication of cardiovascular disease, a leading cause of mortality.
  • Established knowledge of CRS1 centers on cardiovascular function and tubuloglomerular feedback.
  • Recent advancements in acute kidney injury research reveal significant factors like sex differences, immune regulation, and proximal tubule function.

Purpose of the Study:

  • To review the current understanding of CRS1, focusing on under-explored areas.
  • To investigate the influence of sex differences on CRS1 pathogenesis and presentation.
  • To explore the role of immune system contributions in CRS1.
  • To examine the impact of proximal tubule transport function in CRS1.

Main Methods:

  • Literature review of existing research on CRS1.
  • Analysis of studies investigating sex-based variations in kidney disease.
  • Examination of immunological factors implicated in CRS1.
  • Review of research on proximal tubule transport mechanisms relevant to CRS1.

Main Results:

  • Knowledge regarding CRS1 in women and sex differences is limited but growing.
  • The immune system's role in CRS1 is an area requiring further exploration.
  • Proximal tubule transport dysfunction is a key factor in CRS1 pathogenesis.
  • Interplay between cardiovascular and renal systems is complex and influenced by these factors.

Conclusions:

  • CRS1 research is expanding beyond traditional cardiovascular and tubuloglomerular feedback mechanisms.
  • Investigating sex differences, immune responses, and proximal tubule function is crucial for a comprehensive understanding of CRS1.
  • Further research in these areas promises to yield new insights into CRS1 management and treatment.

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