{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T03:02:14Z","timestamp":1787022134708,"version":"build-2736575974"},"reference-count":41,"publisher":"Public Library of Science (PLoS)","issue":"11","license":[{"start":{"date-parts":[[2023,11,8]],"date-time":"2023-11-08T00:00:00Z","timestamp":1699401600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>Periostin, a secreted matricellular protein, has been implicated in cardiac extracellular matrix remodeling and fibrosis. Evidence suggest that periostin stimulates cardiomyocyte hypertrophy. The current study aims to investigate the extent of periostin expression in patients with advanced Hypertrophic Cardiomyopathy (HCM) and its correlation with fibrosis and hallmark histopathological features of the disease. Interventricular septal tissue from thirty-nine HCM patients who underwent myectomy and five controls who died from non-cardiac causes was obtained. Staining with Masson\u2019s Trichrome and immunohistochemistry were used to localize fibrosis and periostin respectively. The extent of fibrosis and the expression of periostin were defined as the stained percentage of total tissue area using digital pathology software. Periostin expression was higher in HCM patients compared to controls (p&lt;0.0001), positively correlated with the extent of fibrosis (r = 0.82, p&lt;0.001), positively correlated with maximal interventricular septal thickness (Rho = 0.33, p = 0.04) and negatively correlated with LVEF (r = -0.416, p = 0.009). Periostin was approximately co-localized with fibrosis. Mean periostin expression was lower in patients with mild grade cardiomyocyte hypertrophy compared to those with moderate grade (p = 0.049) and lower in patients with mild grade replacement fibrosis compared to moderate grade (p = 0.036). In conclusion, periostin is overexpressed in advanced HCM, correlated with fibrosis and possibly related to cardiomyocyte hypertrophy.<\/jats:p>","DOI":"10.1371\/journal.pone.0293427","type":"journal-article","created":{"date-parts":[[2023,11,8]],"date-time":"2023-11-08T13:30:56Z","timestamp":1699450256000},"page":"e0293427","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":6,"title":["Periostin is overexpressed, correlated with fibrosis and differs among grades of cardiomyocyte hypertrophy in myectomy tissue of patients with hypertrophic cardiomyopathy"],"prefix":"10.1371","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4160-1745","authenticated-orcid":true,"given":"Nikolaos S.","family":"Ioakeimidis","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonios","family":"Pitsis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Zegkos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dimitrios","family":"Ntelios","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timotheos","family":"Kelpis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theodora","family":"Papamitsou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Despoina","family":"Parcharidou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas","family":"Gossios","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgios","family":"Efthimiadis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soultana","family":"Meditskou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2023,11,8]]},"reference":[{"key":"pone.0293427.ref001","doi-asserted-by":"crossref","first-page":"1881","DOI":"10.1016\/S0140-6736(04)16358-7","article-title":"Hypertrophic cardiomyopathy","volume":"363","author":"P Elliott","year":"2004","journal-title":"Lancet"},{"key":"pone.0293427.ref002","doi-asserted-by":"crossref","first-page":"749","DOI":"10.1161\/CIRCRESAHA.117.311059","article-title":"Hypertrophic Cardiomyopathy: Genetics, Pathogenesis, Clinical Manifestations, Diagnosis, and Therapy","volume":"121","author":"AJ Marian","year":"2017","journal-title":"Circ Res"},{"key":"pone.0293427.ref003","doi-asserted-by":"crossref","first-page":"26","DOI":"10.4330\/wjc.v6.i2.26","article-title":"Hypertrophic cardiomyopathy in 2013: Current speculations and future perspectives","volume":"6","author":"GK Efthimiadis","year":"2014","journal-title":"World J Cardiol"},{"issue":"4","key":"pone.0293427.ref004","doi-asserted-by":"crossref","first-page":"372","DOI":"10.1016\/j.jacc.2021.12.002","article-title":"Diagnosis and Evaluation of Hypertrophic Cardiomyopathy","volume":"79","author":"BJ Maron","year":"2022","journal-title":"Journal of the American College of Cardiology"},{"issue":"3","key":"pone.0293427.ref005","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1093\/ehjci\/jev014","article-title":"Recommendations for Cardiac Chamber Quantification by Echocardiography in Adults: An Update from the American Society of Echocardiography and the European Association of Cardiovascular Imaging","volume":"16","author":"RM Lang","year":"2015","journal-title":"European Heart Journal\u2014Cardiovascular Imaging"},{"key":"pone.0293427.ref006","first-page":"456","article-title":"Contribution a\u2018 l\u2019e\u00b4tude des re\u00b4tre\u00b4cissements de l\u2019orifice ventriculo- aortique","volume":"3","author":"A. 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