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Our\n                      <jats:italic>GRN<\/jats:italic>\n                      variant\u2010positive PD patients had a higher male\u2010to\u2010female ratio and a younger age at onset compared with FTD\u2010\n                      <jats:italic>GRN<\/jats:italic>\n                      patients reported in the literature. Patients with\n                      <jats:italic>GRN<\/jats:italic>\n                      variants showed higher rates of impaired olfactory function and more severe motor symptoms than\n                      <jats:italic>GRN<\/jats:italic>\n                      variant\u2010negative patients.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      FTD\u2010\n                      <jats:italic>GRN<\/jats:italic>\n                      may be indistinguishable from PD. Therefore, comprehensive genetic testing, including\n                      <jats:italic>GRN<\/jats:italic>\n                      analysis, is recommended for patients with clinically diagnosed parkinsonism\/PD to guide disease management and prognosis. \u00a9 2025 The Author(s).\n                      <jats:italic>Movement Disorders<\/jats:italic>\n                      published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/mds.70161","type":"journal-article","created":{"date-parts":[[2025,12,24]],"date-time":"2025-12-24T11:22:01Z","timestamp":1766575321000},"page":"1020-1027","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Pathogenic or Likely Pathogenic\n                    <scp>\n                      <i>GRN<\/i>\n                    <\/scp>\n                    Variants Are Found in 0.1% of Parkinson's Disease Patients"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5891-5372","authenticated-orcid":false,"given":"Christian A.","family":"Ganoza","sequence":"first","affiliation":[{"name":"CENTOGENE GmbH  Rostock Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8062-6959","authenticated-orcid":false,"given":"Ana","family":"Westenberger","sequence":"additional","affiliation":[{"name":"Institute of Neurogenetics University of L\u00fcbeck  L\u00fcbeck Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jefri J.","family":"Paul","sequence":"additional","affiliation":[{"name":"CENTOGENE GmbH  Rostock Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Filipa","family":"Curado","sequence":"additional","affiliation":[{"name":"CENTOGENE GmbH  Rostock 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