Steven J Soldin

Summary

Affiliation: Georgetown University
Country: USA

Publications

  1. ncbi request reprint Analytic bias of thyroid function tests: analysis of a College of American Pathologists fresh frozen serum pool by 3900 clinical laboratories
    Bernard W Steele
    Department of Pathology, University of Miami School of Medicine, Miami, Fla, USA
    Arch Pathol Lab Med 129:310-7. 2005
  2. pmc Differences between measurements of T4 and T3 in pregnant and nonpregnant women using isotope dilution tandem mass spectrometry and immunoassays: are there clinical implications?
    Offie P Soldin
    Division of Cancer Genetics and Epidemiology, Lombardi Cancer Center, Georgetown University School of Medicine, Room S 165A, 3800 Reservoir Road, NW, Washington, DC 20007 2197, USA
    Clin Chim Acta 347:61-9. 2004
  3. pmc Pediatric reference intervals for FSH, LH, estradiol, T3, free T3, cortisol, and growth hormone on the DPC IMMULITE 1000
    Offie P Soldin
    Division of Endocrinology and Metabolism, Georgetown University School of Medicine, Washington DC 20057 1465, USA
    Clin Chim Acta 355:205-10. 2005
  4. pmc The measurement of free thyroxine by isotope dilution tandem mass spectrometry
    Steven J Soldin
    Bioanalytical Core Laboratory, Georgetown Clinical Research Center, Georgetown University, Washington, DC 20007 2197, USA
    Clin Chim Acta 358:113-8. 2005
  5. ncbi request reprint Simultaneous determination of 12 steroids by isotope dilution liquid chromatography-photospray ionization tandem mass spectrometry
    Tiedong Guo
    Bioanalytical Core Laboratory, General Clinical Research Center, Georgetown University, Washington, DC 20007 2197, USA
    Clin Chim Acta 372:76-82. 2006
  6. pmc Steroid hormone analysis by tandem mass spectrometry
    Steven J Soldin
    Department of Medicine, Georgetown University, Washington, DC 20007, USA
    Clin Chem 55:1061-6. 2009
  7. pmc Pediatric brain natriuretic peptide and N-terminal pro-brain natriuretic peptide reference intervals
    Steven J Soldin
    Departments of Medicine and Pharmacology, Georgetown University Medical Center, Washington DC 20007, USA
    Clin Chim Acta 366:304-8. 2006
  8. pmc Comparison of FT4 with log TSH on the Abbott Architect ci8200: Pediatric reference intervals for free thyroxine and thyroid-stimulating hormone
    Steven J Soldin
    General Clinical Research Center, Georgetown University Medical Center, Washington, District of Columbia, USA
    Clin Chim Acta 411:250-2. 2010
  9. ncbi request reprint Results of phase 2 safety and feasibility study of treatment with levetiracetam for prevention of posttraumatic epilepsy
    Pavel Klein
    Department of Neurology, MedStar Research Institute, Washington, DC, USA
    Arch Neurol 69:1290-5. 2012
  10. doi request reprint Changes in steroid concentrations with the timing of corticotropin stimulation testing in participants with adrenal sufficiency
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, DC 20007, USA
    Endocr Pract 18:66-75. 2012

Collaborators

Detail Information

Publications60

  1. ncbi request reprint Analytic bias of thyroid function tests: analysis of a College of American Pathologists fresh frozen serum pool by 3900 clinical laboratories
    Bernard W Steele
    Department of Pathology, University of Miami School of Medicine, Miami, Fla, USA
    Arch Pathol Lab Med 129:310-7. 2005
    ..In proficiency testing surveys, there are differences in the values reported by users of various analytic methods. Two contributors to this variation are calibrator bias and matrix effects of proficiency testing materials...
  2. pmc Differences between measurements of T4 and T3 in pregnant and nonpregnant women using isotope dilution tandem mass spectrometry and immunoassays: are there clinical implications?
    Offie P Soldin
    Division of Cancer Genetics and Epidemiology, Lombardi Cancer Center, Georgetown University School of Medicine, Room S 165A, 3800 Reservoir Road, NW, Washington, DC 20007 2197, USA
    Clin Chim Acta 347:61-9. 2004
    ..05) throughout pregnancy. In this study, we examined the clinical implications of these discrepancies...
  3. pmc Pediatric reference intervals for FSH, LH, estradiol, T3, free T3, cortisol, and growth hormone on the DPC IMMULITE 1000
    Offie P Soldin
    Division of Endocrinology and Metabolism, Georgetown University School of Medicine, Washington DC 20057 1465, USA
    Clin Chim Acta 355:205-10. 2005
    ..Our objective was to obtain reference intervals for the 7 serum analytes for our pediatric population using the IMMULITE 1000 system...
  4. pmc The measurement of free thyroxine by isotope dilution tandem mass spectrometry
    Steven J Soldin
    Bioanalytical Core Laboratory, Georgetown Clinical Research Center, Georgetown University, Washington, DC 20007 2197, USA
    Clin Chim Acta 358:113-8. 2005
    ..We developed a rapid, reliable free T4 method employing isotope dilution tandem mass spectrometry and compared our results with both the analogue (direct) free T4 and equilibrium dialysis procedures...
  5. ncbi request reprint Simultaneous determination of 12 steroids by isotope dilution liquid chromatography-photospray ionization tandem mass spectrometry
    Tiedong Guo
    Bioanalytical Core Laboratory, General Clinical Research Center, Georgetown University, Washington, DC 20007 2197, USA
    Clin Chim Acta 372:76-82. 2006
    ..We describe our second generation steroid profile assay which allows for the quantitation of 12 steroids simultaneously employing HPLC-MS/MS and isotope dilution tandem MS in 11 min. This method requires a sample volume of 200 microl...
  6. pmc Steroid hormone analysis by tandem mass spectrometry
    Steven J Soldin
    Department of Medicine, Georgetown University, Washington, DC 20007, USA
    Clin Chem 55:1061-6. 2009
    ..New high-performance liquid chromatography/tandem mass spectrometry (LC-MS/MS) methods are among the most successful approaches to improve specificity problems inherent in many immunoassays...
  7. pmc Pediatric brain natriuretic peptide and N-terminal pro-brain natriuretic peptide reference intervals
    Steven J Soldin
    Departments of Medicine and Pharmacology, Georgetown University Medical Center, Washington DC 20007, USA
    Clin Chim Acta 366:304-8. 2006
    ..Previous studies lack large numbers in each group, have not covered all age ranges and have not compared results for BNP with NT-proBNP in simultaneously drawn samples...
  8. pmc Comparison of FT4 with log TSH on the Abbott Architect ci8200: Pediatric reference intervals for free thyroxine and thyroid-stimulating hormone
    Steven J Soldin
    General Clinical Research Center, Georgetown University Medical Center, Washington, District of Columbia, USA
    Clin Chim Acta 411:250-2. 2010
    ..We evaluated the clinical validity of serum FT4 measurements by assessing its correlation with log TSH. To provide pediatric reference intervals (representative ranges) for FT4, and TSH on the Architect ci8200 integrated system...
  9. ncbi request reprint Results of phase 2 safety and feasibility study of treatment with levetiracetam for prevention of posttraumatic epilepsy
    Pavel Klein
    Department of Neurology, MedStar Research Institute, Washington, DC, USA
    Arch Neurol 69:1290-5. 2012
    ..To evaluate the safety and tolerability of treatment with levetiracetam and determine the trough levels of levetiracetam in patients with traumatic brain injury (TBI) who are at high risk for posttraumatic epilepsy (PTE)...
  10. doi request reprint Changes in steroid concentrations with the timing of corticotropin stimulation testing in participants with adrenal sufficiency
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, DC 20007, USA
    Endocr Pract 18:66-75. 2012
    ..To determine whether the time of day at which corticotropin stimulation testing is performed influences the steroid concentrations observed in persons with normal adrenal function...
  11. ncbi request reprint Nevirapine concentration in nonstimulated saliva: an alternative to plasma sampling in children with human immunodeficiency virus infection
    Natella Y Rakhmanina
    Division of Infectious Disease, The George Washington University School of Medicine, Washington, DC 20010, USA
    Ther Drug Monit 29:110-7. 2007
    ....
  12. ncbi request reprint Simultaneous quantification of free triiodothyronine and free thyroxine by isotope dilution tandem mass spectrometry
    Jianghong Gu
    Department of Laboratory Medicine, Children s National Medical Center, 111 Michigan Avenue, NW, Washington, DC, USA
    Clin Biochem 40:1386-91. 2007
    ....
  13. pmc Pediatric reference intervals for free thyroxine and free triiodothyronine
    Offie P Soldin
    Department of Oncology, Georgetown University Medical Center, Washington, DC 20007, USA
    Thyroid 19:699-702. 2009
    ..We determined age- and sex-specific reference intervals for neonates, infants, and children 0-18 years of age for FT(4) and FT(3) using tandem mass spectrometry...
  14. pmc Thyroid hormone levels associated with active and passive cigarette smoking
    Offie P Soldin
    Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, District of Columbia 20057, USA
    Thyroid 19:817-23. 2009
    ..We use a comprehensive approach to assess the interrelationships between active and passive tobacco smoke exposure and thyroid hormone levels by employing innovative hormone analysis techniques...
  15. pmc Correlations of free thyroid hormones measured by tandem mass spectrometry and immunoassay with thyroid-stimulating hormone across 4 patient populations
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, DC 20007, USA
    Clin Chem 55:1380-8. 2009
    ..Our study was designed to compare free thyroid hormone measurements performed with immunoassay and LC-MS/MS...
  16. pmc Tandem mass spectrometry as a novel tool for elucidating pituitary-thyroid relationships
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, District of Columbia 20007, USA
    Thyroid 18:1303-11. 2008
    ..Our objective was to determine the performance of liquid chromatography-tandem mass spectrometry (LC-MS/MS) in documenting both group and individual relationships between thyroid hormone and thyroid-stimulating hormone (TSH) concentrations...
  17. pmc Tandem mass spectrometry improves the accuracy of free thyroxine measurements during pregnancy
    Natasa Kahric-Janicic
    Division of Endocrinology, Georgetown University Medical Center, Washington, DC, USA
    Thyroid 17:303-11. 2007
    ..The objective of this study was to characterize the performance of a novel tandem mass spectrometric assay for free thyroxine during the physiologic conditions of pregnancy...
  18. pmc CYP3A5, ABCB1, and SLCO1B1 polymorphisms and pharmacokinetics and virologic outcome of lopinavir/ritonavir in HIV-infected children
    Natella Y Rakhmanina
    Division of Infectious Diseases, Children s National Medical Center, Washington, DC, USA
    Ther Drug Monit 33:417-24. 2011
    ..The aim of this study was to investigate the influence of CYP3A5 A6986G, ABCB1 (C3435T and G2677T), and SLCO1B1 (T521C and A388AG) polymorphisms on the PK and virologic outcome of lopinavir/ritonavir (LPV/RTV) in HIV-infected children...
  19. pmc Steroid hormone levels in pregnancy and 1 year postpartum using isotope dilution tandem mass spectrometry
    Offie P Soldin
    Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University Medical Center, Washington, DC 20057 1465, USA
    Fertil Steril 84:701-10. 2005
    ....
  20. pmc Rapid measurement of estrogens and their metabolites in human serum by liquid chromatography-tandem mass spectrometry without derivatization
    Tiedong Guo
    Bioanalytical Core Laboratory, General Clinical Research Center, Georgetown University Medical Center, Washington, DC, USA
    Clin Biochem 41:736-41. 2008
    ....
  21. pmc Can therapeutic drug monitoring improve pharmacotherapy of HIV infection in adolescents?
    Natella Y Rakhmanina
    Division of Infectious Disease, Children s National Medical Center, Washington, DC, USA
    Ther Drug Monit 32:273-81. 2010
    ..Finally, TDM in adolescents provides valuable information about the clinical pharmacology of ART during puberty...
  22. pmc Longitudinal comparison of thyroxine pharmacokinetics between pregnant and nonpregnant women: a stable isotope study
    Offie P Soldin
    Department of Medicine, Oncology, Physiology and Biophysics, Georgetown University Medical Center, Washington, DC 20057, USA
    Ther Drug Monit 32:767-73. 2010
    ..Future work should focus on the mechanisms responsible for the gestational differences in pharmacokinetics and whether these should necessitate dose schedule changes in pregnancy...
  23. pmc Thyroid hormone testing by tandem mass spectrometry
    Offie P Soldin
    Department of Oncology, Georgetown University Medical Center, Washington, DC 20057, USA
    Clin Biochem 44:89-94. 2011
    ..These methods are especially important in states of disease and during pregnancy when protein binding is a factor that interferes with other methods for thyroid hormone analysis...
  24. ncbi request reprint Rapid measurement of plasma acylcarnitines by liquid chromatography-tandem mass spectrometry without derivatization
    Amit K Ghoshal
    Department of Laboratory Medicine, Children s National Medical Center, 111 Michigan Avenue, NW, Washington, DC 20010 2970, USA
    Clin Chim Acta 358:104-12. 2005
    ..We developed a LC-MS/MS method for the online extraction of acylcarnitines in plasma without derivatization that requires only precipitation of proteins by acetonitrile followed by centrifugation, thus increasing efficiency...
  25. pmc Steroid hormones: relevance and measurement in the clinical laboratory
    Jennifer P Holst
    Division of Endocrinology and Metabolism, Georgetown University, 4000 Reservoir Road Northwest, Washington, DC 20007, USA
    Clin Lab Med 24:105-18. 2004
    ..This article addresses the relevance and methods of measurement of steroid hormones in the clinical laboratory...
  26. ncbi request reprint Safety and pharmacokinetics of antiretroviral therapy during pregnancy
    Natella Y Rakhmanina
    Special Immunology Program, Children s National Medical Center, Washington, DC 20010 2970, USA
    Ther Drug Monit 26:110-5. 2004
    ..The available pharmacokinetic data regarding the use of antiretroviral therapy in pregnancy is reviewed...
  27. ncbi request reprint Therapeutic drug monitoring for patients with HIV infection: Children's National Medical Center, Washington DC experience
    Steven J Soldin
    Department of Pediatrics, The George Washington University School of Medicine, Washington, DC, USA
    Ther Drug Monit 26:107-9. 2004
    ..Also discussed are the preliminary new and original data on free antiretroviral drug measurement in both plasma and saliva...
  28. pmc Steroid hormone levels associated with passive and active smoking
    Offie P Soldin
    Department of Oncology, Georgetown University Medical Center, Washington, DC, USA
    Steroids 76:653-9. 2011
    ..Cigarette tobacco smoke is a potent environmental contaminant known to adversely affect health including fertility and pregnancy...
  29. doi request reprint Results of phase II pharmacokinetic study of levetiracetam for prevention of post-traumatic epilepsy
    Pavel Klein
    Department of Neurology, MedStar Research Institute, Washington, D C 20010, USA
    Epilepsy Behav 24:457-61. 2012
    ..Treatment of TBI patients with high PTE risk with 55mg/kg/day LEV, a dose with antiepileptogenic effect in animals, results in plasma LEV levels comparable to those in animal studies...
  30. pmc Pediatric reference intervals for aldosterone, 17alpha-hydroxyprogesterone, dehydroepiandrosterone, testosterone and 25-hydroxy vitamin D3 using tandem mass spectrometry
    Offie P Soldin
    Department of Oncology, Georgetown University Medical Center, USA
    Clin Biochem 42:823-7. 2009
    ..To determine age and sex-specific pediatric reference intervals for aldosterone, 17alpha-hydroxyprogesterone, dehydroepiandrosterone, testosterone, and 25-hydroxy vitamin D(3)...
  31. doi request reprint Triiodothyronine levels in athyreotic individuals during levothyroxine therapy
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, DC, USA
    JAMA 299:769-77. 2008
    ..However, trials evaluating therapy with combined LT4 and T3 have failed to demonstrate any consistent advantage of combination therapy...
  32. pmc Endogenous thyrotropin and triiodothyronine concentrations in individuals with thyroid cancer
    Jacqueline Jonklaas
    Division of Endocrinology, Georgetown University Medical Center, Washington, District of Columbia 20007, USA
    Thyroid 18:943-52. 2008
    ..We also sought to determine whether thyroid hormone levels were lower in the patients with malignancy...
  33. doi request reprint Simultaneous determination of levetiracetam and its acid metabolite (ucb L057) in serum/plasma by liquid chromatography tandem mass spectrometry
    Damodara Rao Mendu
    Department of Medicine, Bioanalytical Core Laboratory, Georgetown University, Washington, DC, USA
    Clin Biochem 43:485-9. 2010
    ..Levetiracetam and its acid metabolite have almost identical MRMs. They therefore need to be separated chromatographically prior to quantitation...
  34. pmc IMMULITE 2000 age and sex-specific reference intervals for alpha fetoprotein, homocysteine, insulin, insulin-like growth factor-1, insulin-like growth factor binding protein-3, C-peptide, immunoglobulin E and intact parathyroid hormone
    Offie P Soldin
    Department of Oncology, Physiology, Georgetown University Medical Center, USA
    Clin Biochem 41:937-42. 2008
    ....
  35. pmc Use of steroid profiles in determining the cause of adrenal insufficiency
    Jennifer P Holst
    Center for Diabetes and Endocrinology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
    Steroids 72:71-84. 2007
    ..The study objective was to determine whether a steroid profile, created by simultaneous measurement of 10 steroid hormones by tandem mass spectrometry, would help determine the cause of adrenal insufficiency...
  36. ncbi request reprint Steroid profiles using liquid chromatography-tandem mass spectrometry with atmospheric pressure photoionization source
    Tiedong Guo
    Bioanalytical Core Laboratory, Georgetown University and Georgetown Clinical Research Center, Washington, DC, USA
    Arch Pathol Lab Med 128:469-75. 2004
  37. ncbi request reprint Steroid profiles in serum by liquid chromatography-tandem mass spectrometry in infants with genital hair
    Paul Kaplowitz
    Department of Endocrinolog, Children s National Medical Center, Washington, DC 20010, USA
    J Pediatr Endocrinol Metab 20:597-605. 2007
    ..In recent years, an increasing number of infants have been seen with fine hair in the genital area and no other signs of androgen excess, but the hormonal basis of this finding is unknown...
  38. pmc Serum iron, ferritin, transferrin, total iron binding capacity, hs-CRP, LDL cholesterol and magnesium in children; new reference intervals using the Dade Dimension Clinical Chemistry System
    Offie P Soldin
    Cancer, Genetics and Epidemiology and Endocrinology and Pharmacology, Georgetown University Medical Center, Washington, DC 20007, USA
    Clin Chim Acta 342:211-7. 2004
    ....
  39. ncbi request reprint Determination of levetiracetam in human plasma/serum/saliva by liquid chromatography-electrospray tandem mass spectrometry
    Tiedong Guo
    Bioanalytical Core Laboratory, General Clinical Research Center, Georgetown University, Washington, DC, USA
    Clin Chim Acta 375:115-8. 2007
    ..We developed and describe a simple and rapid high performance liquid chromatography-electrospray tandem mass spectrometry (HPLC-ESI-MS/MS) assay for the determination of levetiracetam in human matrix (plasma, serum, or saliva)...
  40. pmc Isotope dilution tandem mass spectrometric method for T4/T3
    Nadia Soukhova
    Bioanalytical Core Laboratory, Georgetown Clinical Research Center, Georgetown University, Washington, DC 20007 2197, USA
    Clin Chim Acta 343:185-90. 2004
    ..To compare the results obtained by this MS/MS method with those obtained by an immunoassay procedure on the same samples (DPC Immulite for T3, Diagnostics Product, and Dade RxL Dimension for T4, Dade-Behring)...
  41. doi request reprint P450 oxidoreductase *28 (POR*28) and tacrolimus disposition in pediatric kidney transplant recipients--a pilot study
    Violette M G J Gijsen
    Intensive Care and Department of Pediatric Surgery, Erasmus MC Sophia Children s Hospital, Rotterdam, the Netherlands Division of Clinical Pharmacology and Toxicology, The Hospital for Sick Children, Toronto, ON, Canada Department of Clinical Chemistry, Erasmus MC, Rotterdam, The Netherlands Departments of Oncology Medicine Pharmacology Physiology Biophysics, Georgetown University Medical Center, Washington, DC and Department of Medicine, University of Western Ontario, London, ON, Canada
    Ther Drug Monit 36:152-8. 2014
    ..The authors aimed to evaluate the additional contribution of POR*28 to early tacrolimus disposition in pediatric kidney transplant recipients...
  42. doi request reprint Simultaneous quantification of GM1 and GM2 gangliosides by isotope dilution tandem mass spectrometry
    Jianghong Gu
    Department of Laboratory Medicine, Children s National Medical Center, 111 Michigan Avenue, NW, Washington, DC, USA
    Clin Biochem 41:413-7. 2008
    ....
  43. ncbi request reprint An improved application for the enzyme multipled immunoassay technique for caffeine, amikacin, and methotrexate assays on the Dade-Behring Dimension RxL Max clinical chemistry system
    Damodara Rao Mendu
    Department of Medicine, Georgetown University and Georgetown Clinical Research Center, Washington, DC, USA
    Ther Drug Monit 29:632-7. 2007
    ..The new Dimension RxL Max method parameters provide greatly improved precision and also meet today's clinical sensitivity guidelines (0.05 micromol/L) for MTX...
  44. ncbi request reprint Therapeutic drug monitoring of antiretroviral therapy
    Natella Y Rakhmanina
    Special Immunology Program, Children s National Medical Center, Washington, DC 20010 2970, USA
    AIDS Patient Care STDS 18:7-14. 2004
    ..This review includes an illustrative case report of measuring concentrations of antiretroviral drugs in a pediatric patient...
  45. ncbi request reprint Improved method for concurrent quantification of antiretrovirals by liquid chromatography-tandem mass spectrometry
    Amit K Ghoshal
    Department of Laboratory Medicine, Children s National Medical Center, Washington, DC, USA
    Ther Drug Monit 25:541-3. 2003
    ..997 for all drugs). Accuracy was assessed by correlation of the calibrators with proficiency testing samples spiked with known drug concentrations and yielded results within 8% of the target values...
  46. doi request reprint Performance evaluation of the new ADVIA Centaur system cyclosporine assay (single-step extraction)
    Steven J Soldin
    Georgetown University, Washington, DC, USA
    Clin Chim Acta 411:806-11. 2010
    ..Cyclosporine (CsA) monitoring is essential for transplant success. We report a performance study of the recently released, fully automated Siemens ADVIA Centaur CsA assay...
  47. pmc Circadian disruption alters mouse lung clock gene expression and lung mechanics
    Hélène Hadden
    Lung Regeneration Laboratory, Department of Medicine, Georgetown University School of Medicine, Washington, District of Columbia, USA
    J Appl Physiol (1985) 113:385-92. 2012
    ..Among CJL males, expression of Clock was decreased; Per 2 and Rev-erb alpha expression was increased. We conclude circadian disruption alters lung mechanics and clock gene expression and does so in a sexually dimorphic manner...
  48. ncbi request reprint Determination of total and free plasma carnitine concentrations on the Dade Behring Dimension RxL: integrated chemistry system
    Amit K Ghoshal
    Department of Laboratory Medicine, Children s National Medical Center, 111 Michigan Avenue, NW, Washington, DC 20010 2970, USA
    Clin Chim Acta 361:80-5. 2005
    ..The objective of this study was to develop a method on the Dade Behring Dimension RxL analyzer for measuring free and total carnitine levels in plasma...
  49. pmc Dipeptidyl peptidases as survival factors in Ewing sarcoma family of tumors: implications for tumor biology and therapy
    Congyi Lu
    Department of Biochemistry and Molecular and Cellular Biology, Georgetown University, Washington, DC 20057, USA
    J Biol Chem 286:27494-505. 2011
    ..This is the first demonstration that intracellular DPPs are involved in regulation of ESFT growth and may become potential therapeutic targets for these tumors...
  50. ncbi request reprint Evaluation of the Dade Behring Dimension RxL: integrated chemistry system-pediatric reference ranges
    Amit K Ghoshal
    Department of Laboratory Medicine, Children s National Medical Center, 111 Michigan Avenue, NW, Washington, DC 20010 2970, USA
    Clin Chim Acta 331:135-46. 2003
    ..The objectives of this study were to evaluate the performance of the Dade Dimension RxL in a Pediatric Hospital and to establish pediatric reference ranges for this analyzer...
  51. ncbi request reprint Lack of specificity of cyclosporine immunoassays. Results of a College of American Pathologists Study
    Steven J Soldin
    Department of Pathology, The George Washington University School of Medicine, Children s National Medical Center, Washington, DC 20010, USA
    Arch Pathol Lab Med 127:19-22. 2003
    ..To evaluate the cross-reactivity of the 6 most abundant cyclosporine A (CsA) metabolites in commonly used assays for CsA...
  52. ncbi request reprint Simple rapid method for quantification of antiretrovirals by liquid chromatography-tandem mass-spectrometry
    Andrew Volosov
    Children s National Medical Center, Washington, DC, USA
    Clin Biochem 35:99-103. 2002
    ....
  53. ncbi request reprint Phenytoin overview--metabolite interference in some immunoassays could be clinically important: results of a College of American Pathologists study
    Steven J Soldin
    Department of Pathology, The George Washington University School of Medicine, Children s National Medical Center, Washington, DC 20010, USA
    Arch Pathol Lab Med 127:1623-5. 2003
  54. pmc Adrenocortical hormone abnormalities in men with chronic prostatitis/chronic pelvic pain syndrome
    Jordan Dimitrakov
    Harvard Urological Diseases Research Center, Children s Hospital Boston, Boston, Massachusetts 02115, USA
    Urology 71:261-6. 2008
    ..To identify adrenocortical hormone abnormalities as indicators of endocrine dysfunction in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS)...
  55. pmc Blood lead concentrations in children: new ranges
    Offie Porat Soldin
    Soldin Research and Consultants, Inc, Bethesda, MD 20816, USA
    Clin Chim Acta 327:109-13. 2003
    ..Using a large hospital population (n=11145), we define more specific ranges for pediatric blood lead concentrations...
  56. ncbi request reprint Comparison of pooled fresh frozen serum to proficiency testing material in College of American Pathologists surveys: cortisol and immunoglobulin E
    Darryl Erik Palmer-Toy
    Department of Pathology, Massachusetts General Hospital and Harvard Partners Center for Genetics and Genomics, Boston, Mass, USA
    Arch Pathol Lab Med 129:305-9. 2005
    ..The College of American Pathologists (CAP) provides proficiency testing (PT) surveys to laboratories around the world...
  57. ncbi request reprint Age specific reference intervals for soluble transferrin receptor (sTfR)
    Tonya Kratovil
    Clin Chim Acta 380:222-4. 2007
  58. pmc Pediatric reference ranges for zinc protoporphyrin
    Offie Porat Soldin
    Soldin Research and Consultants, Inc, Bethesda, MD, USA
    Clin Biochem 36:21-5. 2003
    ..To determine pediatric reference ranges for zinc protoporphyrin (ZPP)...
  59. ncbi request reprint A longitudinal replicate study of immunosuppressive drugs: a College of American Pathologists study
    Bernard W Steele
    Department of Pathology, University of Miami School of Medicine, Miami, FL, USA bsteele camed miami edu
    Arch Pathol Lab Med 127:283-8. 2003
    ..To identify the sources of analytical variation for cyclosporine and tacrolimus in a 3-year longitudinal study...
  60. ncbi request reprint Modified and improved method for the measurement of plasma acylcarnitines by online extraction coupled to liquid chromatography-tandem mass spectrometry without derivatization
    Amit K Ghoshal
    Clin Chim Acta 365:352-3. 2006