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Items: 27


Enhancing the accuracy of measurement of small molecule organic biomarkers.

Teo TL, Lippa KA, Mackay L, Yong S, Liu Q, Camara JE, Delatour V, Lee TK, Lalere B, O' Connor G, Henrion A, Kato M, Numata M, Kwon HJ, Jeong JS, Xu B, Song D, Nammoonnoy J, Wollinger W.

Anal Bioanal Chem. 2019 Nov;411(28):7341-7355. doi: 10.1007/s00216-019-02153-x. Epub 2019 Oct 30.


An updated protocol based on CLSI document C37 for preparation of off-the-clot serum from individual units for use alone or to prepare commutable pooled serum reference materials.

Danilenko U, Vesper HW, Myers GL, Clapshaw PA, Camara JE, Miller WG.

Clin Chem Lab Med. 2019 Oct 30. pii: /j/cclm.ahead-of-print/cclm-2019-0732/cclm-2019-0732.xml. doi: 10.1515/cclm-2019-0732. [Epub ahead of print]


Standard Reference Material (SRM) 2378 fatty acids in frozen human serum. Certification of a clinical SRM based on endogenous supplementation of polyunsaturated fatty acids.

Benner BA Jr, Schantz MM, Powers CD, Schleicher RL, Camara JE, Sharpless KE, Yen JH, Sniegoski LT.

Anal Bioanal Chem. 2018 Mar;410(9):2321-2329. doi: 10.1007/s00216-017-0841-5. Epub 2018 Feb 13.


IFCC Working Group Recommendations for Assessing Commutability Part 2: Using the Difference in Bias between a Reference Material and Clinical Samples.

Nilsson G, Budd JR, Greenberg N, Delatour V, Rej R, Panteghini M, Ceriotti F, Schimmel H, Weykamp C, Keller T, Camara JE, Burns C, Vesper HW, MacKenzie F, Miller WG; IFCC Working Group on Commutability.

Clin Chem. 2018 Mar;64(3):455-464. doi: 10.1373/clinchem.2017.277541. Epub 2018 Jan 18.


IFCC Working Group Recommendations for Assessing Commutability Part 3: Using the Calibration Effectiveness of a Reference Material.

Budd JR, Weykamp C, Rej R, MacKenzie F, Ceriotti F, Greenberg N, Camara JE, Schimmel H, Vesper HW, Keller T, Delatour V, Panteghini M, Burns C, Miller WG; IFCC Working Group on Commutability.

Clin Chem. 2018 Mar;64(3):465-474. doi: 10.1373/clinchem.2017.277558. Epub 2018 Jan 18.


IFCC Working Group Recommendations for Assessing Commutability Part 1: General Experimental Design.

Miller WG, Schimmel H, Rej R, Greenberg N, Ceriotti F, Burns C, Budd JR, Weykamp C, Delatour V, Nilsson G, MacKenzie F, Panteghini M, Keller T, Camara JE, Zegers I, Vesper HW; IFCC Working Group on Commutability.

Clin Chem. 2018 Mar;64(3):447-454. doi: 10.1373/clinchem.2017.277525. Epub 2018 Jan 18.


Role of the National Institute of Standards and Technology (NIST) in Support of the Vitamin D Initiative of the National Institutes of Health, Office of Dietary Supplements.

Wise SA, Tai SS, Burdette CQ, Camara JE, Bedner M, Lippa KA, Nelson MA, Nalin F, Phinney KW, Sander LC, Betz JM, Sempos CT, Coates PM.

J AOAC Int. 2017 Sep 1;100(5):1260-1276. doi: 10.5740/jaoacint.17-0305. Epub 2017 Sep 1.


Establishing an Accuracy Basis for the Vitamin D External Quality Assessment Scheme (DEQAS).

Burdette CQ, Camara JE, Nalin F, Pritchett J, Sander LC, Carter GD, Jones J, Betz JM, Sempos CT, Wise SA.

J AOAC Int. 2017 Sep 1;100(5):1277-1287. doi: 10.5740/jaoacint.17-0306. Epub 2017 Aug 29.


Baseline Assessment of 25-Hydroxyvitamin D Assay Performance: A Vitamin D Standardization Program (VDSP) Interlaboratory Comparison Study.

Wise SA, Phinney KW, Tai SS, Camara JE, Myers GL, Durazo-Arvizu R, Tian L, Hoofnagle AN, Bachmann LM, Young IS, Pettit J, Caldwell G, Liu A, Brooks SPJ, Sarafin K, Thamm M, Mensink GBM, Busch M, Rabenberg M, Cashman KD, Kiely M, Kinsella M, Galvin K, Zhang JY, Oh K, Lee SW, Jung CL, Cox L, Goldberg G, Guberg K, Prentice A, Carter GD, Jones J, Brannon PM, Lucas RM, Crump PM, Cavalier E, Merkel J, Betz JM, Sempos CT.

J AOAC Int. 2017 Sep 1;100(5):1244-1252. doi: 10.5740/jaoacint.17-0258. Epub 2017 Aug 19.


Baseline Assessment of 25-Hydroxyvitamin D Reference Material and Proficiency Testing/External Quality Assurance Material Commutability: A Vitamin D Standardization Program Study.

Phinney KW, Sempos CT, Tai SS, Camara JE, Wise SA, Eckfeldt JH, Hoofnagle AN, Carter GD, Jones J, Myers GL, Durazo-Arvizu R, Miller WG, Bachmann LM, Young IS, Pettit J, Caldwell G, Liu A, Brooks SPJ, Sarafin K, Thamm M, Mensink GBM, Busch M, Rabenberg M, Cashman KD, Kiely M, Galvin K, Zhang JY, Kinsella M, Oh K, Lee SW, Jung CL, Cox L, Goldberg G, Guberg K, Meadows S, Prentice A, Tian L, Brannon PM, Lucas RM, Crump PM, Cavalier E, Merkel J, Betz JM.

J AOAC Int. 2017 Sep 1;100(5):1288-1293. doi: 10.5740/jaoacint.17-0291. Epub 2017 Aug 10.


General Steps to Standardize the Laboratory Measurement of Serum Total 25-Hydroxyvitamin D.

Sempos CT, Betz JM, Camara JE, Carter GD, Cavalier E, Clarke MW, Dowling KG, Durazo-Arvizu RA, Hoofnagle AN, Liu A, Phinney KW, Sarafin K, Wise SA, Coates PM.

J AOAC Int. 2017 Sep 1;100(5):1230-1233. doi: 10.5740/jaoacint.17-0259. Epub 2017 Aug 1.


Interlaboratory Comparison for the Determination of 24,25-Dihydroxyvitamin D₃ in Human Serum Using Liquid Chromatography with Tandem Mass Spectrometry.

Wise SA, Tai SS, Nelson MA, Burdette CQ, Camara JE, Hoofnagle AN, Laha TJ, Carter GD, Jones J, Williams EL, Barclay ZJ, Jones G, Kaufmann M, Binkley N, Kapoor A, Ziegler T, Cashman KD, Dowling KG, Sempos CT.

J AOAC Int. 2017 Sep 1;100(5):1308-1317. doi: 10.5740/jaoacint.17-0183. Epub 2017 Jul 24.


Value Assignment of Vitamin D Metabolites in Vitamin D Standardization Program Serum Samples.

Phinney KW, Camara JE, Tai SS, Sander LC, Wise SA, De Grande LAC, Thienpont LM, Possolo AM, Toman B, Sempos CT, Betz JM, Coates PM.

J AOAC Int. 2017 Sep 1;100(5):1253-1259. doi: 10.5740/jaoacint.17-0204. Epub 2017 Jun 16.


Development of an Improved Standard Reference Material for Vitamin D Metabolites in Human Serum.

Phinney KW, Tai SS, Bedner M, Camara JE, Chia RRC, Sander LC, Sharpless KE, Wise SA, Yen JH, Schleicher RL, Chaudhary-Webb M, Maw KL, Rahmani Y, Betz JM, Merkel J, Sempos CT, Coates PM, Durazo-Arvizu RA, Sarafin K, Brooks SPJ.

Anal Chem. 2017 May 2;89(9):4907-4913. doi: 10.1021/acs.analchem.6b05168. Epub 2017 Apr 13.


Standardizing 25-hydroxyvitamin D values from the Canadian Health Measures Survey.

Sarafin K, Durazo-Arvizu R, Tian L, Phinney KW, Tai S, Camara JE, Merkel J, Green E, Sempos CT, Brooks SP.

Am J Clin Nutr. 2015 Nov;102(5):1044-50. doi: 10.3945/ajcn.114.103689. Epub 2015 Sep 30.


Development of a Standard Reference Material for metabolomics research.

Phinney KW, Ballihaut G, Bedner M, Benford BS, Camara JE, Christopher SJ, Davis WC, Dodder NG, Eppe G, Lang BE, Long SE, Lowenthal MS, McGaw EA, Murphy KE, Nelson BC, Prendergast JL, Reiner JL, Rimmer CA, Sander LC, Schantz MM, Sharpless KE, Sniegoski LT, Tai SS, Thomas JB, Vetter TW, Welch MJ, Wise SA, Wood LJ, Guthrie WF, Hagwood CR, Leigh SD, Yen JH, Zhang NF, Chaudhary-Webb M, Chen H, Fazili Z, LaVoie DJ, McCoy LF, Momin SS, Paladugula N, Pendergrast EC, Pfeiffer CM, Powers CD, Rabinowitz D, Rybak ME, Schleicher RL, Toombs BM, Xu M, Zhang M, Castle AL.

Anal Chem. 2013 Dec 17;85(24):11732-8. doi: 10.1021/ac402689t. Epub 2013 Dec 3.


Determination of fortified and endogenous folates in food-based Standard Reference Materials by liquid chromatography-tandem mass spectrometry.

Camara JE, Lowenthal MS, Phinney KW.

Anal Bioanal Chem. 2013 May;405(13):4561-8. doi: 10.1007/s00216-013-6733-4. Epub 2013 Jan 26.


Expression and characterization of 15N-labeled human C-reactive protein in Escherichia coli and Pichia pastoris for use in isotope-dilution mass spectrometry.

Kilpatrick EL, Liao WL, Camara JE, Turko IV, Bunk DM.

Protein Expr Purif. 2012 Sep;85(1):94-9. doi: 10.1016/j.pep.2012.06.019. Epub 2012 Jul 13.


An international assessment of the metrological equivalence of higher-order measurement services for creatinine in serum.

Camara JE, Lippa KA, Duewer DL, Gasca-Aragon H, Toman B.

Anal Bioanal Chem. 2012 Apr;403(2):527-35. doi: 10.1007/s00216-012-5869-y. Epub 2012 Mar 6.


A novel regulatory mechanism couples deoxyribonucleotide synthesis and DNA replication in Escherichia coli.

Gon S, Camara JE, Klungsøyr HK, Crooke E, Skarstad K, Beckwith J.

EMBO J. 2006 Mar 8;25(5):1137-47. Epub 2006 Feb 16.


Hda inactivation of DnaA is the predominant mechanism preventing hyperinitiation of Escherichia coli DNA replication.

Camara JE, Breier AM, Brendler T, Austin S, Cozzarelli NR, Crooke E.

EMBO Rep. 2005 Aug;6(8):736-41.


Escherichia coli prereplication complex assembly is regulated by dynamic interplay among Fis, IHF and DnaA.

Ryan VT, Grimwade JE, Camara JE, Crooke E, Leonard AC.

Mol Microbiol. 2004 Mar;51(5):1347-59.


Highly sensitive chemiluminescence immunoassay for benzo[a]pyrene-DNA adducts: validation by comparison with other methods, and use in human biomonitoring.

Divi RL, Beland FA, Fu PP, Von Tungeln LS, Schoket B, Camara JE, Ghei M, Rothman N, Sinha R, Poirier MC.

Carcinogenesis. 2002 Dec;23(12):2043-9.


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