{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T23:47:27Z","timestamp":1773272847941,"version":"3.50.1"},"reference-count":28,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2009,10,7]],"date-time":"2009-10-07T00:00:00Z","timestamp":1254873600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Develop Med Child Neuro"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:p><jats:bold>Aim\u2002<\/jats:bold> Mutations in the <jats:italic>SLC16A2<\/jats:italic> gene have been implicated in Allan\u2013Herndon\u2013Dudley syndrome (AHDS), an X\u2010linked learning disability<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"#fn2\">*<\/jats:ext-link> syndrome associated with thyroid function test (TFT) abnormalities. Delayed myelination is a non\u2010specific finding in individuals with learning disability whose genetic basis is often uncertain. The aim of this study was to describe neuroimaging findings and neurological features in males with <jats:italic>SLC16A2<\/jats:italic> gene mutations.<\/jats:p><jats:p><jats:bold>Method\u2002<\/jats:bold> We reviewed brain magnetic resonance imaging (MRI) findings and neurological features in a cohort of five males aged between 1\u2003year 6\u2003months and 6\u2003years (median 4y) from four families harbouring <jats:italic>SLC16A2<\/jats:italic> gene mutations.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> The participants presented aged between 4 and 9\u2003months with initial hypotonia and subsequent spastic paraparesis with dystonic posturing and superimposed paroxysmal dyskinesias. Dystonic cerebral palsy was the most common initial clinical diagnosis, and AHDS was suspected only retrospectively, considering the characteristically abnormal thyroid function tests, with high serum tri\u2010iodothyronine (T<jats:sub>3<\/jats:sub>), as the most consistent finding. Brain MRI showed absent or markedly delayed myelination in all five participants, prompting the suspicion of Pelizaeus\u2013Merzbacher disease in one patient.<\/jats:p><jats:p><jats:bold>Interpretation\u2002<\/jats:bold> Our findings indicate a consistent association between defective neuronal T<jats:sub>3<\/jats:sub> uptake and delayed myelination. <jats:italic>SLC16A2<\/jats:italic> involvement should be considered in males with learning disability, an associated motor or movement disorder, and evidence of delayed myelination on brain MRI. Although dysmorphic features suggestive of AHDS are not always present, T<jats:sub>3<\/jats:sub> measurement is a reliable screening test.<\/jats:p>","DOI":"10.1111\/j.1469-8749.2009.03471.x","type":"journal-article","created":{"date-parts":[[2009,10,7]],"date-time":"2009-10-07T09:26:10Z","timestamp":1254907570000},"page":"475-482","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":55,"title":["White matter abnormalities and dystonic motor disorder associated with mutations in the <i>SLC16A2<\/i> gene"],"prefix":"10.1111","volume":"52","author":[{"given":"ARTEMIS D","family":"GIKA","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ATA","family":"SIDDIQUI","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"ANTHONY 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