Abstract:
INTRODUCTION:Hypophosphatasia (HPP) is caused by mutations in the ALPL that encodes the tissue-nonspecific isoenzyme of alkaline phosphatase (ALP). Clinical manifestations range from extreme life-threatening lethal forms to no signs or symptoms at all. MATERIALS AND METHODS:Consecutive 30,000 outpatients and inpatients with ALP data were screened retrospectively, out of which 1000 patients were found to have low levels of ALP more than once. Then, patients were evaluated for the symptoms and signs of HPP with further biochemical and genetic analyses. RESULTS:Thirty-seven patients who had severe musculoskeletal pain, recurrent fractures, and tooth anomalies were then screened with substrate and DNA sequencing analyses for HPP. It was determined that eight patients had variants in the ALPL gene. A total of eight different ALPL variants were identified in eight patients. The variants, namely c.244G > C (p.Gly82Arg), c.1444C > T (p.His482Tyr), c.1487A > G (p.Asn493Ser), and c.675_676insCA (p.Met226GlnfsTer52), had not been previously reported. DISCUSSION:Considering the wide spectrum of clinical signs and symptoms, HPP should be among the differential lists of bone, muscle, and tooth abnormalities at any age.
journal_name
J Bone Miner Metabjournal_title
Journal of bone and mineral metabolismauthors
İnci A,Ergin FBC,Yüce BT,Çiftçi B,Demir E,Buyan N,Okur İ,Biberoğlu G,Öktem RM,Tümer L,Ezgü FSdoi
10.1007/s00774-020-01193-zsubject
Has Abstractpub_date
2021-01-06 00:00:00eissn
0914-8779issn
1435-5604pii
10.1007/s00774-020-01193-zpub_type
杂志文章abstract::A link between vascular calcification and bone anomalies has been suggested in chronic kidney disease (CKD) patients with low bone turnover disease. We investigated the vascular expression of osteocyte markers in relation to bone microarchitecture and mineralization defects in a model of low bone turnover CKD rats wit...
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更新日期:2014-07-01 00:00:00
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更新日期:2013-05-01 00:00:00
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journal_title:Journal of bone and mineral metabolism
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