Abstract:
BACKGROUND:New genetic forms of hereditary hemochromatosis (HH) or hereditary hyperferritinemia (HF) have been identified over the last few years, and abnormalities of various genes may interact in a single patient. This study aimed to develop a rapid automated method for sequencing the main genes involved. METHODS:We used a standard 96-well microplate with a single PCR condition in an adaptation of the SCAIP (single-condition amplification with internal primer) method to sequence the HFE (hemochromatosis), HAMP (hepcidin antimicrobial peptide), HFE2/HJV [hemochromatosis type 2 (juvenile)], SLC40A1 (ferroportin), and TFR2 (transferrin receptor 2) genes, and the 5' untranslated region of the FTL (ferritin, light polypeptide) gene. To further simplify the method, we adjusted PCR conditions to avoid the use of an internal primer and applied this single-condition amplification method to 38 selected, unrelated patients. We tailored the genetic investigation according to the clinical picture, with the patients falling into 2 groups. Group 1 consisted of patients with hyperferritinemia and high transferrin saturation (TS) (classic adult and juvenile HH forms, groups 1A and 1B, respectively), and group 2 consisted of patients with hyperferritinemia and low, typical, or slightly increased TS, with or without iron overload (groups 2A and 2B, respectively). RESULTS:With this strategy we identified single-gene and multigene abnormalities, including 6 previously undescribed abnormalities in HFE (c.794dupA), HFE2 (c.-89-4dupT), and SLC40A1 (c.262A>G, c.533G>A, c.1468G>A, and c.-59_-45del). CONCLUSION:This method is a simple approach for investigating hereditary iron overload or HF and allows rapid evaluation of patients.
journal_name
Clin Chemjournal_title
Clinical chemistryauthors
Cunat S,Giansily-Blaizot M,Bismuth M,Blanc F,Dereure O,Larrey D,Quellec AL,Pouderoux P,Rose C,Raingeard I,Renard E,Schved JF,Aguilar-Martinez P,CHU Montpellier AOI 2004 Working Group.doi
10.1373/clinchem.2007.090605subject
Has Abstractpub_date
2007-12-01 00:00:00pages
2060-9issue
12eissn
0009-9147issn
1530-8561pii
clinchem.2007.090605journal_volume
53pub_type
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journal_title:Clinical chemistry
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journal_title:Clinical chemistry
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doi:
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journal_title:Clinical chemistry
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doi:
更新日期:1993-02-01 00:00:00
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journal_title:Clinical chemistry
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doi:
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journal_title:Clinical chemistry
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更新日期:1986-07-01 00:00:00
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journal_title:Clinical chemistry
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journal_title:Clinical chemistry
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