{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T19:39:59Z","timestamp":1790537999169,"version":"4.1.0"},"reference-count":48,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2002,2,12]],"date-time":"2002-02-12T00:00:00Z","timestamp":1013472000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2002,2,12]],"date-time":"2002-02-12T00:00:00Z","timestamp":1013472000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Movement Disorders"],"published-print":{"date-parts":[[2002,5]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Manganese (Mn) exposure can cause parkinsonism. Pathological changes occur mostly in the pallidum and striatum. Two patients with a long history of occupational Mn exposure presented with Mn\u2010induced parkinsonism. In one patient, magnetic resonance imaging (MRI) showed findings consistent with Mn exposure, and Mn concentration was increased in the blood and urine. However, this patient's clinical features were typical of idiopathic Parkinson disease (PD). Previous pathological and positron emission tomography studies indicate that striatal dopamine transporter density is normal in Mn\u2010induced parkinsonism, whereas it is decreased in PD. Therefore, we performed [\n                    <jats:sup>123<\/jats:sup>\n                    I]\u2010(1r)\u20102\u03b2\u2010carboxymethoxy\u20103\u03b2\u2010(4\u2010iodophenyl)tropane ([\n                    <jats:sup>123<\/jats:sup>\n                    I]\u2010\u03b2\u2010CIT) single\u2010photon emission computed tomography. Severe reduction of striatal \u03b2\u2010CIT binding was indicated, which is consistent with PD. We propose three interpretations: (1) the patients have PD, and Mn exposure is incidental; (2) Mn induces selective degeneration of presynaptic dopaminergic nerve terminals, thereby causing parkinsonism; or (3) Mn exposure acts as a risk of PD in these patients. Our results and careful review of previous studies indicate that the axiom that Mn causes parkinsonism by pallidal lesion may be over\u2010simplified; Mn exposure and parkinsonism may be more complex than previously thought. Further studies are required to elucidate the relationship between Mn and various forms of parkinsonism. \u00a9 2002 Movement Disorder Society\n                  <\/jats:p>","DOI":"10.1002\/mds.10089","type":"journal-article","created":{"date-parts":[[2002,10,6]],"date-time":"2002-10-06T07:25:39Z","timestamp":1033889139000},"page":"568-575","source":"Crossref","is-referenced-by-count":89,"title":["Dopamine transporter density is decreased in parkinsonian patients with a history of manganese exposure: What does it mean?"],"prefix":"10.1002","volume":"17","author":[{"given":"Y.","family":"Kim","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.\u2010M.","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.\u2010W.","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.\u2010I.","family":"Yoo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.R.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.H.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.K.","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.O.","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.K.","family":"Chung","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D.S.","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B.","family":"Jeon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2002,2,12]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.1989.00520460090018"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.44.9.1583"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.43.8.1479"},{"key":"e_1_2_6_5_2","first-page":"173","article-title":"Uber 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