{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T22:45:17Z","timestamp":1761518717355},"reference-count":36,"publisher":"The Endocrine Society","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2003,3,1]]},"abstract":"<jats:p>Postpartum thyroiditis (PPT) is characterized by a rapid evolution and recovery of euthyroidism. Therefore, it can represent a good model to study early cytokine fluctuations in autoimmune thyroid diseases. TGF\u03b21 is an immunosuppressive cytokine, as it inhibits T and B cell proliferation, natural killer cell cytotoxic activity, and the generation of T cell cytotoxicity.<\/jats:p><jats:p>The aim of this study was to assess serum concentrations of TGF\u03b21 during pregnancy and to study possible serum fluctuations of this cytokine during the different phases of PPT. Thyroid biochemical pattern, antithyroid autoantibodies (ATA), and total and active TGF\u03b21 (aTGF\u03b21) serum concentrations were evaluated in 63 pregnant women. Thirty-four of them were ATA+, and 29 were ATA\u2212. Twenty of the 34 ATA+ women were followed in the postpartum year. Nine of these 20 women developed PPT; 11 remained euthyroid. All of the PPT women became euthyroid during the follow-up. Our results showed 1) detectable serum levels of aTGF\u03b21 in 50% of ATA+ pregnant women, suggesting that the presence of autoantibodies may characterize a favorable condition for TGF\u03b21 activation; and 2) decreased total TGF\u03b21 and increased aTGF\u03b21 serum levels during the active phase of PPT in ATA+ women. This seems to suggest that inflammation may be responsible for TGF\u03b21 activation and autoantibody increase because of antigen release. Although further studies of women with persistent hypothyroidism after the postpartum year are needed, the possibility that the enhanced activation of TGF\u03b21 may contribute to resolution of thyroid inflammation postpartum cannot be excluded.<\/jats:p>","DOI":"10.1210\/jc.2002-020990","type":"journal-article","created":{"date-parts":[[2003,3,11]],"date-time":"2003-03-11T02:02:44Z","timestamp":1047348164000},"page":"1280-1284","source":"Crossref","is-referenced-by-count":11,"title":["Postpartum Thyroiditis Is Associated with Fluctuations in Transforming Growth Factor-\u03b21 Serum Levels"],"prefix":"10.1210","volume":"88","author":[{"given":"A.","family":"Olivieri","sequence":"first","affiliation":[{"name":"Metabolism and Pathological Biochemistry Laboratory (A.O., S.D.A., E.G., V.C., M.S.), 00161 Rome Italy;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S.","family":"De Angelis","sequence":"additional","affiliation":[{"name":"Metabolism and Pathological Biochemistry Laboratory (A.O., S.D.A., E.G., V.C., M.S.), 00161 Rome Italy;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"V.","family":"Vaccari","sequence":"additional","affiliation":[{"name":"Immunology Laboratory (V.V., M.B.), 00161 Rome Italy;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Valensise","sequence":"additional","affiliation":[{"name":"Obstetric and Gynecologic Department, Tor Vergata University (H.V., F.M.), 00186 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"F.","family":"Magnani","sequence":"additional","affiliation":[{"name":"Obstetric and Gynecologic Department, Tor Vergata University (H.V., F.M.), 00186 Rome, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. 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