{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T18:22:10Z","timestamp":1787509330184,"version":"build-2736575974"},"reference-count":36,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Mol Imaging"],"published-print":{"date-parts":[[2016,1,1]]},"abstract":"<jats:p>\n                    Abnormalities in zinc homeostasis are indicated in many human diseases, including Alzheimer disease (AD).\n                    <jats:sup>63<\/jats:sup>\n                    Zn-zinc citrate was developed as a positron emission tomography (PET) imaging probe of zinc transport and used in a first-in-human study in 6 healthy elderly individuals and 6 patients with clinically confirmed AD. Dynamic PET imaging of the brain was performed for 30 minutes following intravenous administration of\n                    <jats:sup>63<\/jats:sup>\n                    Zn-zinc citrate (\u223c330 MBq). Subsequently, body PET images were acquired. Urine and venous blood were analyzed to give information on urinary excretion and pharmacokinetics. Regional cerebral\n                    <jats:sup>63<\/jats:sup>\n                    Zn clearances were compared with\n                    <jats:sup>11<\/jats:sup>\n                    C-Pittsburgh Compound B (\n                    <jats:sup>11<\/jats:sup>\n                    C-PiB) and\n                    <jats:sup>18<\/jats:sup>\n                    F-fluorodeoxyglucose (\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG) imaging data.\n                    <jats:sup>63<\/jats:sup>\n                    Zn-zinc citrate was well tolerated in human participants with no adverse events monitored. Tissues of highest uptake were liver, pancreas, and kidney, with moderate uptake being seen in intestines, prostate (in males), thyroid, spleen, stomach, pituitary, and salivary glands. Moderate brain uptake was observed, and regional dependencies were observed in\n                    <jats:sup>63<\/jats:sup>\n                    Zn clearance kinetics in relationship with regions of high amyloid-\u03b2 plaque burden (\n                    <jats:sup>11<\/jats:sup>\n                    C-PiB) and\n                    <jats:sup>18<\/jats:sup>\n                    F-FDG hypometabolism. In conclusion, zinc transport was successfully imaged in human participants using the PET probe\n                    <jats:sup>63<\/jats:sup>\n                    Zn-zinc citrate. Primary sites of uptake in the digestive system accent the role of zinc in gastrointestinal function. Preliminary information on zinc kinetics in patients with AD evidenced regional differences in clearance rates in correspondence with regional amyloid-\u03b2 pathology, warranting further imaging studies of zinc homeostasis in patients with AD.\n                  <\/jats:p>","DOI":"10.1177\/1536012116673793","type":"journal-article","created":{"date-parts":[[2016,12,10]],"date-time":"2016-12-10T03:32:51Z","timestamp":1481340771000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":25,"title":["First PET Imaging Studies With\n                    <sup>63<\/sup>\n                    Zn-Zinc Citrate in Healthy Human Participants and Patients With Alzheimer Disease"],"prefix":"10.1177","volume":"15","author":[{"given":"Timothy R.","family":"DeGrado","sequence":"first","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bradley 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USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Allison R.","family":"Woodwick","sequence":"additional","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel M.","family":"McConnell","sequence":"additional","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel G.","family":"Fletcher","sequence":"additional","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Geoffrey B.","family":"Johnson","sequence":"additional","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronald C.","family":"Petersen","sequence":"additional","affiliation":[{"name":"Department of Neurology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David S.","family":"Knopman","sequence":"additional","affiliation":[{"name":"Department of Neurology, Mayo Clinic, Rochester, MN, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Val J.","family":"Lowe","sequence":"additional","affiliation":[{"name":"Department of Radiology, Mayo Clinic, Rochester, MN, 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