Cited by 43Heme Oxygenase-1 and Carbon MonoxideAcute Kidney Injury ResearchCardiac and Coronary Surgery Techniques

Length Polymorphisms in Heme Oxygenase-1 and AKI after Cardiac Surgery

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Leaf, David E., Body, Simon C., Muehlschlegel, Jochen D., McMahon, Gearoid M., Lichtner, Peter, Collard, Charles D., Shernan, Stanton K., Fox, Amanda A. +1 more·2016·Journal of the American Society of Nephrology

Abstract

Heme oxygenase-1 (HO-1) catalyzes the degradation of heme, which may be involved in the pathogenesis of AKI. Length polymorphisms in the number of GT dinucleotide repeats in the HO-1 gene ( HMOX1 ) promoter inversely associate with HMOX1 mRNA expression. We analyzed the association between allelic frequencies of GT repeats in the HMOX1 gene promoter and postoperative AKI in 2377 white patients who underwent cardiac surgery with cardiopulmonary bypass. We categorized patients as having the short allele (S; <27 GT repeats) or long allele (L; ≥27 GT repeats), and defined AKI as an increase in serum creatinine ≥0.3 mg/dl within 48 hours or ≥50% within 5 days, or the need for RRT. Compared with patients with the SS genotype, patients with the LL genotype had 1.58-fold (95% confidence interval, 1.06 to 2.34; P =0.02) higher odds of AKI. After adjusting for baseline and operative characteristics, the odds ratio for AKI per L allele was 1.26 (95% confidence interval, 1.05 to 1.50; P =0.01). In conclusion, longer GT repeats in the HMOX1 gene promoter associate with increased risk of AKI after cardiac surgery, consistent with heme toxicity as a pathogenic feature of cardiac surgery-associated AKI, and with HO-1 as a potential therapeutic target.

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Crossref · 10.1681/asn.2016010038

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  • Shorter HO-1 (GT)n alleles improve acute kidney injury and outcome after kidney transplantation in mouse models, at least partly due to increased HO-1 promoter activity.

    “Shorter HO-1 (GT)n alleles have been found to improve acute kidney injury and outcome after kidney transplantation in mouse models (Leaf et al. 2016), at least partly due to the increase in HO-1 promoter activity (Gill et al. 2018).”

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Authors
Leaf, D. E., Body, S. C., Muehlschlegel, J. D., McMahon, G. M., Lichtner, P., Collard, C. D., Shernan, S. K., Fox, A. A., & Waikar, S. S.
Affiliations
  • Division of Renal Medicine and
  • Brigham and Women's Hospital (US)
  • Helmholtz Munich (DE)
  • Department of Anesthesiology, Baylor St. Luke’s Medical Center and the Texas Heart Institute, Houston, Texas; and
  • The University of Texas Southwestern Medical Center (US)
Corresponding author
  • Leaf, David E.
  • McMahon, Gearoid M.
  • Waikar, Sushrut S.
Venue
Journal of the American Society of Nephrology
Published
2016-06-02
Volume
27
Issue
11
Pages
3291-3297
ISSN
  • 1046-6673 (ISSN-L)
  • 1533-3450
OpenAlex
W2412247228
Cited by
43
References
35
Citations by year
2026: 1 · 2025: 3 · 2024: 1 · 2023: 4 · 2022: 4 · 2021: 9 · 2020: 3 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 3
FWCI
3.12
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Society of Nephrology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • Site cant be reached (submittedVersion)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
  • University of Alabama at Birmingham
  • National Heart, Lung, and Blood Institute (R01HL118266, R01HL098601)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K23DK106448, R01DK103784, R01DK093574, U01DK085660, U01DK104308, P30DK079337)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heme Oxygenase-1 and Carbon Monoxide
  • Health Sciences › Medicine › Nephrology › Acute Kidney Injury Research
  • Health Sciences › Medicine › Surgery › Cardiac and Coronary Surgery Techniques
Keywords
heme oxygenase-1, acute kidney injury, cardiac surgery, cardiopulmonary bypass, GT repeat polymorphism, promoter polymorphism, genetic susceptibility, heme toxicity
MeSH terms
Aged, Female, Cardiac Surgical Procedures, Humans, Male, Middle Aged, Polymorphism, Genetic, Postoperative Complications, Prospective Studies, Heme Oxygenase-1, Acute Kidney Injury

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