{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T02:13:55Z","timestamp":1777860835040,"version":"3.51.4"},"reference-count":9,"publisher":"The Ewha Medical Journal, Ewha Womans University College of Medicine","issue":"2","license":[{"start":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T00:00:00Z","timestamp":1773360000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/3.0\/"}],"content-domain":{"domain":["e-emj.org"],"crossmark-restriction":true},"short-container-title":["Ewha Med J"],"published-print":{"date-parts":[[2026,4,30]]},"abstract":"<jats:p>Methylenetetrahydrofolate reductase (&lt;i&gt;MTHFR&lt;\/i&gt;) gene mutations, particularly homozygous mutations, have been associated with a higher incidence of venous thrombosis, coronary heart disease, and obstetric complications. We report the case of a 41-year-old man who presented with multiple vascular thrombotic events over a period of 4\u20135 years, including deep vein thrombosis with pulmonary thromboembolism, cerebral venous thrombosis and posterior circulation stroke. The patient was found to have elevated serum homocysteine levels and subsequently underwent genetic testing for &lt;i&gt;MTHFR&lt;\/i&gt; mutations after other potential prothrombotic conditions were excluded. This case is notable because compound heterozygous mutations of the &lt;i&gt;MTHFR&lt;\/i&gt; gene (C677T and A1298C) were identified in association with recurrent vascular thrombotic events. Management focused on long-term anticoagulation and supplementation with vitamin B6, vitamin B12, and folic acid.<\/jats:p>","DOI":"10.12771\/emj.2025.00941","type":"journal-article","created":{"date-parts":[[2026,3,13]],"date-time":"2026-03-13T05:36:45Z","timestamp":1773380205000},"page":"e11","update-policy":"https:\/\/doi.org\/10.12771\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Compound heterozygosity with methylenetetrahydrofolate reductase (&lt;i&gt;MTHFR&lt;\/i&gt;) C677T and A1298C mutations likely causing recurrent thrombotic events in a middle-aged man: a case report"],"prefix":"10.12771","volume":"49","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-4739-5113","authenticated-orcid":true,"given":"Yalini Suppu","family":"Saravanan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2721-9657","authenticated-orcid":true,"given":"Viswanathan","family":"Pandurangan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5193-4079","authenticated-orcid":true,"given":"Devasena","family":"Srinivasan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"4998","reference":[{"key":"ref1","volume-title":""},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1001\/archinte.158.12.1301"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1159\/000083825"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.3390\/ijerph19063255"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1097\/MBC.0b013e3280108e01"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1097\/MBC.0000000000000292"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1186\/ar2989"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.22551\/2019.22.0601.10150"},{"key":"ref9","first-page":"255","volume-title":"Compound heterozygosity for the C677T and A1298C mutations of the MTHFR gene in a case of hyperhomocysteinemia with recurrent deep thrombosis at young age","author":"Jurcu\u0163","year":"2008"}],"container-title":["Ewha Medical Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/e-emj.org\/upload\/pdf\/emj-2025-00941.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/e-emj.org\/journal\/view.php?doi=10.12771\/emj.2025.00941","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/e-emj.org\/upload\/pdf\/emj-2025-00941.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T02:11:21Z","timestamp":1777515081000},"score":1,"resource":{"primary":{"URL":"http:\/\/e-emj.org\/journal\/view.php?doi=10.12771\/emj.2025.00941"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,30]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,4]]}},"URL":"https:\/\/doi.org\/10.12771\/emj.2025.00941","relation":{},"ISSN":["2234-3180","2234-2591"],"issn-type":[{"value":"2234-3180","type":"print"},{"value":"2234-2591","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,30]]},"assertion":[{"value":"2025-10-16","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-03-02","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-03-13","order":2,"name":"published","label":"Published online","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-04-30","order":3,"name":"published","label":"Print publication","group":{"name":"publication_history","label":"Publication History"}}]}}