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209106448 A case of renal osteodystrophy with unexpected serum intact parathyroid hormone concentrations.  
209106415 Correction.  
209106414 Persistent increase in aspartate aminotransferase in an asymptomatic patient.  
209106413 Molecular detection of a novel human influenza (H1N1) of pandemic potential by conventional and real-time quantitative RT-PCR assays.  
BACKGROUND: Influenza A viruses are medically important viral pathogens that cause significant mortality and morbidity throughout the world. The recent emergence of a novel human influenza A virus...
209106350 A patient with a leg rash, pedal edema, renal failure, and thrombocytopenia.  
209106349 Preparation of manuscripts for publication: improving your chances for success.  
209106348 Corrections.  
209106347 A patient with a previous diagnosis of hemoglobin S/C disease with an unusually severe disease course.  
209106315 Chronic diarrhea in a 5-year-old girl: pitfall in routine laboratory testing with potentially severe consequences.  
209106314 A conversation with Elizabeth Blackburn.  
209106313 Genetic testing for developmental delay: keep searching for an answer.  
209106312 The MIQE guidelines: Minimum Information for Publication of Quantitative Real-Time PCR Experiments.  
BACKGROUND: Currently, a lack of consensus exists on how best to perform and interpret quantitative realtime PCR (qPCR) experiments. The problem is exacerbated by a lack of sufficient experimental...
209106218 Two cases with unusual vancomycin measurements.  
209106187 myocardial infarction in a 72-year-old woman with low LDL-C and increased hsCRP: implications for statin therapy.  
209106145 Overseas Laboratory Medicine.  
209106144 Lily Robinson and the Art of Secret Poisoning.  
209106143 A patient with primary biliary cirrhosis and elevated LDL cholesterol.  
209099899 Hemolytic anemia following attempted suicide.  
209099863 Increased C3-carnitine in a healthy premature infant.  
209099724 A girl with severe hand swelling and abdominal cramps.  
209106447 Unusual serum electrophoresis pattern in a woman with pancreatic carcinoma.  
209106412 Evidence-Based Laboratory Medicine: Principles, Practice, and Outcomes, 2nd ed.  
209106411 Immulite vs Scantibodies IRMA plasma ACTH assay.  
209106410 Method validation for cerebral spinal fluid human chorionic gonadotropin measurement with the Advia Centaur[R].  
209106409 Instrument-specific matrix effects of calibration materials in the LC-MS/MS analysis of tacrolimus.  
209106408 Apolipoprotein A-II is a negative risk indicator for cardiovascular and total mortality: findings from the Ludwigshafen risk and cardiovascular health study.  
209106407 Estimation of glomerular filtration rate by use of beta-trace protein.  
209106406 In vitro formation of homocysteine in whole blood in the presence of anticoagulants.  
209106405 Detection of thyroid-stimulating immunoglobulins by use of enzyme-fragment complementation.  
209106404 Plasma renin activity: an assay with ongoing clinical relevance.  
209106403 Cirrhosis originally diagnosed as nonalcoholic steatohepatitis.  
209106402 Unraveling ambiguous NAT2 genotyping data.  
BACKGROUND: Arylamine N-acetyltransferase 2 (CoASAc; NAT2, EC 2.3.1.5) is a drug-metabolizing enzyme that displays common polymorphisms leading to impaired drug metabolism and adverse...
209106401 Evaluation of a deuterium-labeled internal standard for the measurement of sirolimus by high-throughput HPLC electrospray ionization tandem mass spectrometry.  
BACKGROUND: Matrix effects in HPLC-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/ MS) [3] can cause differences in the ionization of an internal standard (IS) compared with the...
209106400 Statistical methods for monitoring the relationship between the IFCC reference measurement procedure for hemoglobin [A.sub.1c] and the designated comparison methods in the United States, Japan, and Sweden.  
BACKGROUND: The American Diabetes Association (ADA)/ European Association for the Study of Diabetes (EASD)/ International Diabetes Federation (IDF)/IFCC Consensus Statement on the...
209106399 How to measure the diagnostic accuracy of noninvasive liver fibrosis indices: the area under the ROC curve revisited.  
BACKGROUND: The area under the ROC curve (AUC) is widely used to measure the diagnostic accuracy of noninvasive fibrosis indices. However, use of the AUC assumes a binary gold standard, whereas...
209106398 Atherosclerosis Risk in Communities (ARIC) Carotid MRI flow cytometry study of monocyte and platelet markers: intraindividual variability and reliability.  
BACKGROUND: Cellular markers help identify different components of a pathological process and may contribute to the diagnosis, prognostic assessment, and management of patients with suspected...
209106397 Diagnostic accuracy of serum ceruloplasmin in Wilson disease: determination of sensitivity and specificity by ROC curve analysis among ATP7B-genotyped subjects.  
BACKGROUND: A serum ceruloplasmin concentration below 0.20 g/L is conventionally considered as one of the major diagnostic criteria for Wilson disease. This decision threshold has not been fully...
209106396 Commutable calibrator with value assigned by the IFCC reference procedure to harmonize serum lactate dehydrogenase activity results measured by 2 different methods.  
BACKGROUND: The availability of commutable calibrator materials may ease considerably the task of harmonizing assay results and ensuring their traceability to reference procedures. We sought to...
209106395 N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations in hemodialysis patients: prognostic value of baseline and follow-up measurements.  
BACKGROUND: Increased N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations are associated with increased cardiovascular mortality in chronic hemodialysis patients. Previous studies...
209106394 SERPINA1 gene variants in individuals from the general population with reduced [[alpha].sub.1]-antitrypsin concentrations.  
BACKGROUND: Individuals with severe deficiency in serum [[alpha].sub.1]-antitrypsin (AAT) concentrations are at high risk for developing chronic obstructive pulmonary disease (COPD), whereas...
209106393 Increased plasma apolipoprotein C-III concentration independently predicts cardiovascular mortality: the Hoorn study.  
BACKGROUND: Hypertriglyceridemia is a cardiovascular risk factor. Apolipoprotein C-III (apoC-III) is an important determinant of the catabolic rate of triglyceride-rich lipoproteins. The aim of...
209106392 Potential of sterol analysis by liquid chromatography-tandem mass spectrometry for the prenatal diagnosis of Smith-Lemli-Opitz syndrome.  
BACKGROUND: Smith-Lemli-Opitz syndrome (SLOS), a severe disorder of cholesterol synthesis, is classically diagnosed prenatally by GC-MS analysis of sterols in amniotic fluid. Considering the...
209106391 Direct determination of lipoprotein particle sizes and concentrations by ion mobility analysis.  
BACKGROUND: Current methods for measuring the concentrations of lipoprotein particles and their distributions in particle subpopulations are not standardized. We describe here and validate a new...
209106390 Distribution of adiponectin, leptin, and metabolic correlates of insulin resistance: a longitudinal study in British children; 1: prepuberty (EarlyBird 15).  
BACKGROUND: The emergence of type 2 diabetes in young populations has mirrored a rising prevalence of obesity and insulin resistance during childhood and adolescence. At the same time, the role...
209106389 State-of-the-art of serum testosterone measurement by isotope dilution-liquid chromatography-tandem mass spectrometry.  
BACKGROUND: The recent interest of clinical laboratories in developing serum testosterone assays based on isotope dilution-liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS) stems from...
209106388 Low vitamin D status in a representative sample of youth from Quebec, Canada.  
BACKGROUND: Adequate vitamin D status is important for bone growth and mineralization and has been implicated in the regulation of autoimmunity, metabolic function, and cancer prevention. There...
209106387 Effects of hemoglobin (Hb) E and HbD traits on measurements of glycated Hb ([HbA.sub.1c]) by 23 methods.  
BACKGROUND: Glycohemoglobin (GHB), reported as hemoglobin (Hb) [A.sub.1c], is a marker of long-term glycemic control in patients with diabetes and is directly related to risk for diabetic...
209106386 Within-subject variability and analytic imprecision of insulinlike growth factor axis and collagen markers: implications for clinical diagnosis and doping tests.  
BACKGROUND: The utility of insulinlike growth factor (IGF) axis and collagen markers for a growth hormone (GH) doping test in sport depends on their stability and reproducibility. We sought to...
209106385 There's nothing to winning, really.  
209106384 National Academy of Clinical Biochemistry Laboratory Medicine Practice Guidelines for use of tumor markers in clinical practice: quality requirements.  
BACKGROUND: This report presents updated National Academy of Clinical Biochemistry Laboratory Medicine Practice Guidelines summarizing quality requirements for the use of tumor markers.