Search Results - "Reitz, Richard E"

Temporal relationship between vitamin D status and parathyroid hormone in the United States by Kroll, Martin H, Bi, Caixia, Garber, Carl C, Kaufman, Harvey W, Liu, Dungang, Caston-Balderrama, Anne, Zhang, Ke, Clarke, Nigel, Xie, Minge, Reitz, Richard E, Suffin, Stephen C, Holick, Michael F

“…Interpretation of parathyroid hormone (iPTH) requires knowledge of vitamin D status that is influenced by season. Characterize the temporal relationship…”
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Simultaneous measurement of thirteen steroid hormones in women with polycystic ovary syndrome and control women using liquid chromatography-tandem mass spectrometry by Keefe, Candace C, Goldman, Mildred M, Zhang, Ke, Clarke, Nigel, Reitz, Richard E, Welt, Corrine K

“…The measurement of adrenal and ovarian androgens in women with PCOS has been difficult based on poor specificity and sensitivity of assays in the female range…”
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Quantitative insulin analysis using liquid chromatography-tandem mass spectrometry in a high-throughput clinical laboratory by Chen, Zhaohui, Caulfield, Michael P, McPhaul, Michael J, Reitz, Richard E, Taylor, Steven W, Clarke, Nigel J

“…Circulating insulin concentrations reflect the amount of endogenous insulin produced by the pancreas and can be monitored to check for insulin resistance…”
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Direct Determination of Lipoprotein Particle Sizes and Concentrations by Ion Mobility Analysis by Caulfield, Michael P, Li, Shuguang, Lee, Gloria, Blanche, Patricia J, Salameh, Wael A, Benner, W. Henry, Reitz, Richard E, Krauss, Ronald M

“…Current methods for measuring the concentrations of lipoprotein particles and their distributions in particle subpopulations are not standardized. We describe…”
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Specificity and predictive value of circulating testosterone assessed by tandem mass spectrometry for the diagnosis of polycystic ovary syndrome by the National Institutes of Health 1990 criteria by Salameh, Wael A., M.D, Redor-Goldman, Mildred M., B.S, Clarke, Nigel J., Ph.D, Mathur, Ruchi, M.D, Azziz, Ricardo, M.D, Reitz, Richard E., M.D

“…Objective To determine whether liquid chromatography–tandem mass spectrometry (LC-MS/MS) determination of total (TT) and free (FT) testosterone is more…”
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Ion Mobility Analysis of Lipoprotein Subfractions Identifies Three Independent Axes of Cardiovascular Risk by MUSUNURU, Kiran, ORHO-MELANDER, Marju, KATHIRESAN, Sekar, MELANDER, Olle, KRAUSS, Ronald M, CAULFIELD, Michael P, SHUGUANG LI, SALAMEH, Wael A, REITZ, Richard E, BERGLUND, Göran, HEDBLAD, Bo, ENGSTRÖM, Gunnar, WILLIAMS, Paul T

“…Whereas epidemiological studies show that levels of low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) predict…”
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Correlation of Insulin-Like Growth Factor-I and -II Concentrations at Birth Measured by Mass Spectrometry and Growth from Birth to Two Months by Hawkes, Colin P, Murray, Deirdre M, Kenny, Louise C, Kiely, Mairead, O'B Hourihane, Jonathan, Irvine, Alan D, Wu, Zengru, Argon, Yair, Reitz, Richard E, McPhaul, Michael J, Grimberg, Adda

“…Immunoassays used to measure insulin-like growth factor (IGF)-I and -II concentrations are susceptible to interference from IGF-binding proteins. The aim of…”
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Novel Lipoprotein Subfraction and Size Measurements in Prediction of Mortality in Maintenance Hemodialysis Patients by Noori, Nazanin, Caulfield, Michael P, Salameh, Wael A, Reitz, Richard E, Nicholas, Susanne B, Molnar, Miklos Z, Nissenson, Allen R, Kovesdy, Csaba P, Kalantar-Zadeh, Kamyar

“…Conventional lipid profiles usually cannot predict cardiovascular outcomes in chronic disease states. We hypothesized that novel lipoprotein subfraction…”
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Variability and Reliability of single Serum IGF-I Measurements: Impact on Determining Predictability of Risk Ratios in Disease Development by Milani, Daniela, Carmichael, John D., Welkowitz, Joan, Ferris, Steven, Reitz, Richard E., Danoff, Ann, Kleinberg, David L.

“…In recent years, a number of investigators have studied the relationship between IGF-I and risk of developing cancer, diabetes or cardiovascular disease. Upper…”
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Serum Concentrations of 1,25-Dihydroxyvitamin D2 and 1,25-Dihydroxyvitamin D3 in Response to Vitamin D2 and Vitamin D3 Supplementation by Biancuzzo, Rachael M, Clarke, Nigel, Reitz, Richard E, Travison, Thomas G, Holick, Michael F

“…Objective: The purpose of this study was to determine 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] and 1,25-dihydroxyvitamin D2 [1,25(OH)2D2] levels in healthy…”
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The Diagnosis of Congenital Adrenal Hyperplasia in the Newborn by Gas Chromatography/Mass Spectrometry Analysis of Random Urine Specimens by Caulfield, Michael P., Lynn, Thomas, Gottschalk, Michael E., Jones, Kenneth L., Taylor, Norman F., Malunowicz, Ewa M., Shackleton, Cedric H. L., Reitz, Richard E., Fisher, Delbert A.

“…Definitive neonatal diagnosis of congenital adrenal hyperplasia (CAH) is frequently complicated by normal 17-hydroxyprogesterone levels in…”
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A Novel Mass Spectrometry–Based Assay for the Accurate Measurement of Thyroglobulin From Patient Samples Containing Antithyroglobulin Autoantibodies by Clarke, Nigel J., Zhang, Yanni, Reitz, Richard E.

“…Thyroid cancer is the most common endocrine cancer in the United States. The primary treatment of thyroid cancer is partial or complete thyroidectomy in…”
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Mutational Analysis in Pediatric Thyroid Cancer and Correlations with Age, Ethnicity, and Clinical Presentation by Nikita, Maria Eleni, Jiang, Wen, Cheng, Shih-Min, Hantash, Feras M, McPhaul, Michael J, Newbury, Robert O, Phillips, Susan A, Reitz, Richard E, Waldman, Frederic M, Newfield, Ron S

“…Well-differentiated thyroid cancer (WDTC) incidence in pediatrics is rising, most being papillary thyroid carcinoma (PTC). The objective of the study was to…”
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Validation of a total testosterone assay using high-turbulence liquid chromatography tandem mass spectrometry: Total and free testosterone reference ranges by Salameh, Wael A., Redor-Goldman, Mildred M., Clarke, Nigel J., Reitz, Richard E., Caulfield, Michael P.

“…Accurate measurement of testosterone concentration is of critical importance when diagnosing and treating male hypogonadism, congenital adrenal hyperplasia,…”
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Discordance between mass spectrometry and immunometric IGF-1 assay in pituitary disease: a prospective study by Bonert, Vivien, Carmichael, John, Wu, Zengru, Mirocha, James, Perez, Daniel A., Clarke, Nigel J., Reitz, Richard E., McPhaul, Michael J., Mamelak, Adam

“…Purpose Measuring IGF-1, a biomarker for GH activity, is critical to evaluating disordered hypothalamic-pituitary GH axis. Inconsistent IGF-1 measurements…”
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Plasma Renin Activity: The Importance of Correct Sample Type by Haymond, Shannon, Clarke, Nigel J, Reitz, Richard E, McPhaul, Michael J, Wu, Zengru

“…[...]study of these degradation results indicated that (a) they were patient specific, which was confirmed by repeat draw and analysis; (b) the degradation…”
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Total and free cortisol levels during 1 μg, 25 μg, and 250 μg cosyntropin stimulation tests compared to insulin tolerance test: results of a randomized, prospective, pilot study by Peechakara, Seenia, Bena, James, Clarke, Nigel J., McPhaul, Michael J., Reitz, Richard E., Weil, Robert J., Recinos, Pablo, Kennedy, Laurence, Hamrahian, Amir H

“…Purpose The appropriate cosyntropin dose during cosyntropin stimulation tests remains uncertain. We conducted a prospective, randomized pilot study to compare…”
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Testosterone Reference Ranges in Normally Cycling Healthy Premenopausal Women by Braunstein, Glenn D., Reitz, Richard E., Buch, Akshay, Schnell, Dan, Caulfield, Michael P.

“…At present, there are no well‐accepted reference ranges for serum testosterone concentrations in women. The aim of this study was to determine the reference…”
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A cross-sectional study of bone turnover markers in healthy premenopausal women by de Papp, Anne E, Bone, Henry G, Caulfield, Michael P, Kagan, Risa, Buinewicz, Anna, Chen, Erluo, Rosenberg, Elizabeth, Reitz, Richard E

“…Abstract Background: Biochemical markers of bone turnover (BTMs) provide useful information in the diagnosis and management of metabolic bone diseases…”
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Identification of Four Gene Variants Associated with Myocardial Infarction by Shiffman, Dov, Ellis, Stephen G., Rowland, Charles M., Malloy, Mary J., Luke, May M., Iakoubova, Olga A., Pullinger, Clive R., Cassano, June, Aouizerat, Bradley E., Fenwick, Raymond G., Reitz, Richard E., Catanese, Joseph J., Leong, Diane U., Zellner, Christian, Sninsky, John J., Topol, Eric J., Devlin, James J., Kane, John P.

“…Family history is a major risk factor for myocardial infarction (MI). However, known gene variants associated with MI cannot fully explain the genetic…”
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