{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T20:07:28Z","timestamp":1770840448017,"version":"3.50.1"},"reference-count":39,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2022,3,19]],"date-time":"2022-03-19T00:00:00Z","timestamp":1647648000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Previous studies implicated cardiotonic steroids, including Na\/K-ATPase inhibitor marinobufagenin (MBG), in the pathogenesis of preeclampsia (PE). Recently, we demonstrated that (i) MBG induces fibrosis in rat tissues via a mechanism involving Fli1, a negative regulator of collagen-1 synthesis, and (ii) MBG sensitive Na\/K-ATPase inhibition is reversed by mineralocorticoid antagonists. We hypothesized that in human PE elevated MBG level is associated with the development of fibrosis of the umbilical arteries and that this fibrosis can be attenuated by canrenone. Fifteen patients with PE (mean BP = 118 \u00b1 4 mmHg; 34 \u00b1 2 years; 38 \u00b1 0.3 weeks gest. age) and twelve gestational age-matched normal pregnant subjects (mean BP = 92 \u00b1 2 mmHg; 34 \u00b1 1 years; 39 \u00b1 0.2 weeks gest. age) were enrolled in the study. PE was associated with a higher plasma MBG level, with a four-fold decrease in Fli1 level and a three-fold increase in collagen-1 level in the PE umbilical arteries vs. those from the normal subjects (p &lt; 0.01). Isolated rings of umbilical arteries from the subjects with PE exhibited impaired responses to the relaxant effect of sodium nitroprusside vs. control vessels (EC50 = 141 nmol\/L vs. EC50 = 0.9 nmol\/L; p &lt; 0.001). The effects of PE on Fli1 and collagen-1 were blocked by the in vitro treatment of umbilical arteries by 10 \u03bcmol\/L canrenone. Similar results were obtained for umbilical arteries pretreated with MBG. These data demonstrate that elevated MBG level is implicated in the development of the fibrosis of umbilical arteries in PE, and that this could be blocked by mineralocorticoid antagonists.<\/jats:p>","DOI":"10.3390\/ijms23063336","type":"journal-article","created":{"date-parts":[[2022,3,20]],"date-time":"2022-03-20T21:30:14Z","timestamp":1647811814000},"page":"3336","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Canrenone Restores Vasorelaxation Impaired by Marinobufagenin in Human Preeclampsia"],"prefix":"10.3390","volume":"23","author":[{"given":"Natalia I.","family":"Agalakova","sequence":"first","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yulia N.","family":"Grigorova","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivan A.","family":"Ershov","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, St. Petersburg State Pediatric Medical University, 194100 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vitaly A.","family":"Reznik","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, St. Petersburg State Pediatric Medical University, 194100 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2458-3920","authenticated-orcid":false,"given":"Elena V.","family":"Mikhailova","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olga V.","family":"Nadei","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leticia","family":"Samuilovskaya","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Larisa A.","family":"Romanova","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, St. Petersburg State Pediatric Medical University, 194100 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C. David","family":"Adair","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, University of Tennessee, Chattanooga, TN 37341, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0348-0631","authenticated-orcid":false,"given":"Irina V.","family":"Romanova","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexei Y.","family":"Bagrov","sequence":"additional","affiliation":[{"name":"Sechenov Institute of Evolutionary Physiology and Biochemistry, 194223 St. Petersburg, Russia"},{"name":"Department of Obstetrics and Gynecology, University of Tennessee, Chattanooga, TN 37341, USA"},{"name":"Padakonn Pharma, 20309 Narva, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,3,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1124\/pr.108.000711","article-title":"Endogenous cardiotonic steroids: Physiology, pharmacology and novel therapeutic targets","volume":"61","author":"Bagrov","year":"2009","journal-title":"Pharmacol. 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