{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T04:18:39Z","timestamp":1789359519158,"version":"build-2803163510"},"reference-count":15,"publisher":"S. Karger AG","issue":"2","license":[{"start":{"date-parts":[[2012,1,1]],"date-time":"2012-01-01T00:00:00Z","timestamp":1325376000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"},{"start":{"date-parts":[[2012,1,1]],"date-time":"2012-01-01T00:00:00Z","timestamp":1325376000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.karger.com\/Services\/SiteLicenses"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Horm Res Paediatr"],"published-print":{"date-parts":[[2012]]},"abstract":"<i>Background\/Aims:<\/i> Osteoporosis-pseudoglioma (OPPG) syndrome is a rare disorder characterized by congenital or infancy-onset visual loss and severe juvenile osteoporosis. OPPG is caused by homozygous mutations in the low-density lipoprotein receptor-related protein 5 <i>(LRP5) <\/i>gene. We present three novel homozygous <i>LRP5 <\/i>mutations found in 3 unrelated Turkish children with consanguineous parents, along with clinical phenotypes and response to treatment with bisphosphonates (bisP). <i>Methods\/Results:<\/i> The <i>LRP5 <\/i>gene was analyzed by direct sequencing after PCR amplification. Mutation screening for <i>LRP5<\/i> revealed homozygous nonsense R1002X mutation in the first patient and homozygous missense mutations V336M and G507S in the second and third patient, respectively. The parents were heterozygous for these mutations. The patients\u2019 eye symptoms began during the first months of life but the OPPG diagnoses were made based on skeletal deformities and osteopenia after 4 years of age. The patients\u2019 bone mineral density Z scores were very low and consistent with osteopenia. All patients were treated with bisP for 3.5\u20137 years. <i>Conclusion:<\/i> We report three novel <i>LRP5 <\/i>mutations in 3 Turkish patients with OPPG. We show that the response of bisP therapy has improved the lumbar spinal bone mineral density Z scores and the patients\u2019 quality of life as the bone pains decreased.<\/jats:p>","DOI":"10.1159\/000336193","type":"journal-article","created":{"date-parts":[[2012,3,23]],"date-time":"2012-03-23T14:58:04Z","timestamp":1332514684000},"page":"115-120","source":"Crossref","is-referenced-by-count":38,"title":["Osteoporosis-Pseudoglioma Syndrome: Three Novel Mutations in the <i>LRP5 <\/i>Gene and Response to Bisphosphonate Treatment"],"prefix":"10.1159","volume":"77","author":[{"given":"B.","family":"T\u00fcys\u00fcz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Bursal\u0131","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Z.","family":"Alp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"N.","family":"Suyug\u00fcl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.M.","family":"Laine","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O.","family":"M\u00e4kitie","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"127","published-online":{"date-parts":[[2012,3,23]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1086%2F497706"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016%2Fj.bone.2006.02.069"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.1016%2Fj.jbspin.2009.11.013"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1002%2Fajmg.a.33177"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1038%2Fejhg.2011.42"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1016%2FS0092-8674%2801%2900571-2"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1038%2Fnature03928"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016%2Fj.cell.2009.07.047"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1016%2Fj.jbspin.2004.10.008"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1083%2Fjcb.200201089"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1111%2Fj.1365-2265.2009.03680.x"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1016%2Fj.bone.2008.04.020"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.1067%2Fmpd.2000.107838"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1586%2F17446651.3.3.337"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1136%2Fjmg.25.8.543"}],"container-title":["Hormone Research in Paediatrics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/336193","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.karger.com\/Article\/Pdf\/336193","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,4,23]],"date-time":"2025-04-23T15:05:07Z","timestamp":1745420707000},"score":1,"resource":{"primary":{"URL":"https:\/\/karger.com\/article\/doi\/10.1159\/000336193"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012]]},"references-count":15,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2012,4,1]]},"published-print":{"date-parts":[[2012,4,13]]}},"URL":"https:\/\/doi.org\/10.1159\/000336193","archive":["Portico"],"relation":{"is-supplemented-by":[{"id-type":"doi","id":"10.6084\/m9.figshare.5123269","asserted-by":"subject"}]},"ISSN":["1663-2818","1663-2826"],"issn-type":[{"value":"1663-2818","type":"print"},{"value":"1663-2826","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012]]}}}