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Mutational analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in patients with hypophosphatemic rickets.
J Hum Genet. 2012 Jul; 57(7):453-8.JH

Abstract

This study aimed to identify the underlying genetic mutation in patients with hypophosphatemic rickets (HR). Genomic DNA was analysed for mutations in PHEX, FGF23 and CLCN5 by polymerase chain reaction (PCR) followed by denaturing high-performance liquid chromatography (dHPLC). Bi-directional sequencing was performed in samples with deviating chromatographic profiles. DMP1 and SLC34A3 were sequenced, only. In addition, a multiplex ligation-dependent probe amplification (MLPA) analysis was performed to detect larger deletions/duplications in PHEX or FGF23. Familial cases accounted for 12 probands while 12 cases were sporadic. In 20 probands, mutations were detected in PHEX of which 12 were novel, and one novel frameshift mutation was found in DMP1. Three PHEX mutations were identified by the MLPA analysis only; that is, two large deletions and one duplication. No mutations were identified in FGF23, SLC34A3 or CLCN5. By the methods used, a disease causing mutation was identified in 83% of the familial and 92% of the sporadic cases, thereby in 88% of the tested probands. Genetic analysis performed in HR patients by PCR, dHPLC, sequencing and in addition by MLPA analysis revealed a high identification rate of gene mutations causing HR, including 12 novel PHEX and one novel DMP1 mutation.

Authors+Show Affiliations

Institute of Clinical Research, University of Southern Denmark, Odense C, Denmark. sbeck-nielsen@health.sdu.dkNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22695891

Citation

Beck-Nielsen, Signe S., et al. "Mutational Analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in Patients With Hypophosphatemic Rickets." Journal of Human Genetics, vol. 57, no. 7, 2012, pp. 453-8.
Beck-Nielsen SS, Brixen K, Gram J, et al. Mutational analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in patients with hypophosphatemic rickets. J Hum Genet. 2012;57(7):453-8.
Beck-Nielsen, S. S., Brixen, K., Gram, J., & Brusgaard, K. (2012). Mutational analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in patients with hypophosphatemic rickets. Journal of Human Genetics, 57(7), 453-8. https://doi.org/10.1038/jhg.2012.56
Beck-Nielsen SS, et al. Mutational Analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in Patients With Hypophosphatemic Rickets. J Hum Genet. 2012;57(7):453-8. PubMed PMID: 22695891.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Mutational analysis of PHEX, FGF23, DMP1, SLC34A3 and CLCN5 in patients with hypophosphatemic rickets. AU - Beck-Nielsen,Signe S, AU - Brixen,Kim, AU - Gram,Jeppe, AU - Brusgaard,Klaus, Y1 - 2012/06/14/ PY - 2012/6/15/entrez PY - 2012/6/15/pubmed PY - 2012/12/10/medline SP - 453 EP - 8 JF - Journal of human genetics JO - J Hum Genet VL - 57 IS - 7 N2 - This study aimed to identify the underlying genetic mutation in patients with hypophosphatemic rickets (HR). Genomic DNA was analysed for mutations in PHEX, FGF23 and CLCN5 by polymerase chain reaction (PCR) followed by denaturing high-performance liquid chromatography (dHPLC). Bi-directional sequencing was performed in samples with deviating chromatographic profiles. DMP1 and SLC34A3 were sequenced, only. In addition, a multiplex ligation-dependent probe amplification (MLPA) analysis was performed to detect larger deletions/duplications in PHEX or FGF23. Familial cases accounted for 12 probands while 12 cases were sporadic. In 20 probands, mutations were detected in PHEX of which 12 were novel, and one novel frameshift mutation was found in DMP1. Three PHEX mutations were identified by the MLPA analysis only; that is, two large deletions and one duplication. No mutations were identified in FGF23, SLC34A3 or CLCN5. By the methods used, a disease causing mutation was identified in 83% of the familial and 92% of the sporadic cases, thereby in 88% of the tested probands. Genetic analysis performed in HR patients by PCR, dHPLC, sequencing and in addition by MLPA analysis revealed a high identification rate of gene mutations causing HR, including 12 novel PHEX and one novel DMP1 mutation. SN - 1435-232X UR - https://www.unboundmedicine.com/medline/citation/22695891/Mutational_analysis_of_PHEX_FGF23_DMP1_SLC34A3_and_CLCN5_in_patients_with_hypophosphatemic_rickets_ L2 - https://core.ac.uk/reader/50682111?utm_source=linkout DB - PRIME DP - Unbound Medicine ER -