IGF-1 and IGF-1 SDS – fit for purpose?

in European Journal of Endocrinology
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    BroerenMACKrabbeJGBoestenLSHokken-KoelegaACSde RijkeYB. Impact of the choice of IGF-I assay and normative dataset on the diagnosis and treatment of growth hormone deficiency in children. Hormone Research in Paediatrics 2018 181–189. (https://doi.org/10.1159/000493133)

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    ChansonPArnouxAMavromatiMBrailly-TabardSMassartCYoungJPikettyMLSouberbielleJC & VARIETE Investigators. Reference values for IGF-I serum concentrations: comparison of six immunoassays. Journal of Clinical Endocrinology and Metabolism 2016 3450–3458. (https://doi.org/10.1210/jc.2016-1257)

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    BidlingmaierMFriedrichNEmenyRTSprangerJWolthersODRoswallJKornerAObermayer-PietschBHubenerCDahlgrenJ Reference intervals for insulin-like growth factor-1 (IGF-i) from birth to senescence: results from a multicenter study using a new automated chemiluminescence IGF-I immunoassay conforming to recent international recommendations. Journal of Clinical Endocrinology and Metabolism 2014 1712–1721. (https://doi.org/10.1210/jc.2013-3059)

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    RossHA & Endocrinology section and project group “Calibration 2000” of the SKML (Dutch Foundation for Quality Assessment in Clinical Laboratories). Reporting growth hormone assay results in terms of one consensus recombinant standard preparation offers less than optimal reduction of between-method variation. Clinical Chemistry and Laboratory Medicine 2008 1334–1335. (https://doi.org/10.1515/CCLM.2008.261)

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    RossHALentjesEMenheerePP. The consensus statement on the standardization and evaluation of growth hormone and insulin-like growth factor assays lacks a recommendation to attempt efficacious harmonization. Clinical Chemistry 2011 1463; author reply 1463–1464. (https://doi.org/10.1373/clinchem.2011.169771)

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    HorvathARBossuytPMSandbergSJohnASMonaghanPJVerhagen-KamerbeekWDLennartzLCobbaertCMEbertCLordSJ Setting analytical performance specifications based on outcome studies – is it possible? Clinical Chemistry and Laboratory Medicine 2015 841–848. (https://doi.org/10.1515/cclm-2015-0214)

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    Algeciras-SchimnichABrunsDEBoydJCBryantSCLa FortuneKAGrebeSK. Failure of current laboratory protocols to detect lot-to-lot reagent differences: findings and possible solutions. Clinical Chemistry 2013 1187–1194. (https://doi.org/10.1373/clinchem.2013.205070)

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    BronsemaKJKlontFSchalkFBBischoffRKemaIPvan de MerbelNC. A quantitative LC-MS/MS method for insulin-like growth factor 1 in human plasma. Clinical Chemistry and Laboratory Medicine 2018 1905–1912. (https://doi.org/10.1515/cclm-2017-1042)

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