Cited by 100Eicosanoids and Hypertension PharmacologyNitric Oxide and Endothelin EffectsRenin-Angiotensin System Studies

Protection from hypertension in mice by the Mediterranean diet is mediated by nitro fatty acid inhibition of soluble epoxide hydrolase

Open access
Charles, Rebecca L., Rudyk, Olena, Prysyazhna, Oleksandra, Kamynina, Alisa, Yang, Jun, Morisseau, Christophe, Hammock, Bruce D., Freeman, Bruce A. +1 more·2014·Proceedings of the National Academy of Sciences

Abstract

Soluble epoxide hydrolase (sEH) is inhibited by electrophilic lipids by their adduction to Cys521 proximal to its catalytic center. This inhibition prevents hydrolysis of the enzymes' epoxyeicosatrienoic acid (EET) substrates, so they accumulate inducing vasodilation to lower blood pressure (BP). We generated a Cys521Ser sEH redox-dead knockin (KI) mouse model that was resistant to this mode of inhibition. The electrophilic lipid 10-nitro-oleic acid (NO2-OA) inhibited hydrolase activity and also lowered BP in an angiotensin II-induced hypertension model in wild-type (WT) but not KI mice. Furthermore, EET/dihydroxy-epoxyeicosatrienoic acid isomer ratios were elevated in plasma from WT but not KI mice following NO2-OA treatment, consistent with the redox-dead mutant being resistant to inhibition by lipid electrophiles. sEH was inhibited in WT mice fed linoleic acid and nitrite, key constituents of the Mediterranean diet that elevates electrophilic nitro fatty acid levels, whereas KIs were unaffected. These observations reveal that lipid electrophiles such as NO2-OA mediate antihypertensive signaling actions by inhibiting sEH and suggest a mechanism accounting for protection from hypertension afforded by the Mediterranean diet.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1073/pnas.1402965111

Cites

51 of 51 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Charles, R. L., Rudyk, O., Prysyazhna, O., Kamynina, A., Yang, J., Morisseau, C., Hammock, B. D., Freeman, B. A., & Eaton, P.
Affiliations
  • St Thomas' Hospital (GB)
  • UC Davis Comprehensive Cancer Center (US)
  • Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261
Corresponding author
Eaton, Philip
Venue
Proceedings of the National Academy of Sciences
Published
2014-05-19
Volume
111
Issue
22
Pages
8167-8172
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2161301563
Cited by
100
References
51
Citations by year
2026: 1 · 2025: 11 · 2024: 9 · 2023: 6 · 2022: 5 · 2021: 3 · 2020: 6 · 2019: 9 · 2018: 11 · 2017: 15 · 2016: 10 · 2015: 10 · 2014: 4
FWCI
5.74
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • National Institute for Health and Care Research
  • British Heart Foundation (PG/10/98/28655, FS/11/45/28859, RG/12/12/29872)
  • Fondation Leducq
  • National Institutes of Health (DK097154, ES002710)
  • Medical Research Council (MR/L009684/1)
  • Biotechnology and Biological Sciences Research Council (BB/C503646/1)
  • National Heart, Lung, and Blood Institute (R01HL064937, R37HL058115, R01HL058115, P01HL103455, R01HL132550)
  • National Institute of Diabetes and Digestive and Kidney Diseases (U24DK097154)
  • National Institute of Environmental Health Sciences (P42ES004699, R01ES002710)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
Keywords
soluble epoxide hydrolase, nitro-fatty acids, Mediterranean diet, hypertension, blood pressure, epoxyeicosatrienoic acids, angiotensin II-induced hypertension, linoleic acid, nitrite, vasodilation
MeSH terms
Angiotensin II, Animals, Blood Pressure, Cellulase, Disease Models, Animal, Epoxide Hydrolases, Fatty Acids, Cardiomegaly, Hypertension, Mice, Inbred C57BL, Mice, Mutant Strains, Nitrates, Nitrites, Sulfhydryl Compounds, Vasoconstrictor Agents, Vasodilation, Diet, Mediterranean, Mice, Gene Knock-In Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review