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Start Over Author "C.A. Stegeman" Topic general medicine
3 results on '"C.A. Stegeman"'

1. Contents Vol. 128, 2014

Author

Milagros Ortiz, Mercè Borràs Sans, C.G.M. Kallenberg, David N. Churchill, Verónica Duarte, Leon G. Fine, Mónica Pou, Carmen Mon, Marenao Tanaka, Helen Dickie, Kostas C. Siamopoulos, Ho Sik Shin, Angel L.M. de Francisco, Chun Soo Lim, Patricia Ehrhard, Andrew A. House, Andreas Kronbichler, Gilbert Deray, Dimitrios Poulikakos, Pedro Quirós Ganga, Gillian Armstrong, Kleopatra Rousouli, Vivekand Jha, Jung Hwan Park, Anna Saurina, Sangeon Gwoo, Bum Soon Choi, Frank C. Dougherty, Kazuhiko Tsuruya, C.A. Stegeman, Michael G. Robson, William C. Vezina, Xanthi Zikou, Gordon Jacobsen, Piero Ruggenenti, Seon Ha Baek, Anna Junqué, Kunitoshi Iseki, Beatriz López-Calviño, Ana Vigil, Bonnie Richardson, David Jayne, Annette Bruchfeld, Marlies Ostermann, Miguel Pérez Fontán, Gabriela Cobo, Tomohiro Mita, Takanobu Nomura, Satz Mengensatzproduktion, Isabel Rodriguez, Emilio Sánchez Álvarez, Javier A. Neyra, Cristina Di Gioia, Okan Akaci, Marta da Cunha Naveira, J.S.F. Sanders, Barbara Lisowska-Myjak, Liz Lightstone, Peter G. Czarnecki, Xilong Li, Yusuke Okazaki, Ana Rodriguez-Carmona, Ye Na Kim, Eiichiro Kanda, Francesco Locatelli, Paolo Cravedi, Sung Joon Shin, Constantinos C. Tellis, Shih-Han S. Huang, Dong Ki Kim, Hanna Debiec, César Remón Rodríguez, Debasish Banerjee, Fátima Moreno, Suhnggwon Kim, Ho Jun Chin, Jerry Yee, Alexandre Karras, Carole Dangoisse, Hideaki Yoshida, Osman Donmez, Daniel C. Cattran, Ayse Altas, Rachel B. Jones, W.H. Abdulahad, Olimpia Ortega, Frédéric Houssiau, Tetsuji Miura, Aniana Oliet, Guido Filler, Miquel Fulquet, Hideki Hirakata, Kohei Ohno, Sejoong Kim, Marcello Tonelli, Misha Eliasziw, Theodore I. Steinman, Cristian Riella, Carmen Rodríguez Suárez, Hannah Beckwith, Miguel C. Riella, Nurhan Albayrak, Druckerei Stückle, Alexandros D. Tselepis, Pierre Ronco, Lenar Yessayan, Jose Carneiro, Reena J Popat, Danilo Fliser, Vicent Esteve Simó, Vladimir Tesar, Yeon Soon Jung, Evangelia Dounousi, John Manllo, Yujuan Liu, Masato Furuhashi, Sang Ho Lee, Hark Rim, Guillermo Garcia-Garcia, Paloma Gallar, Takahiro Fuseya, Juan Carlos Herrero, Andrew S. Bomback, Rosa Camacho, Manel Ramírez de Arellano, J. David Spence, Shutaro Ishimura, Linda Tovey, Marek Malik, Giuseppe Remuzzi, Zdenka Hruskova, and Hans-Joachim Anders

Subjects
medicine.medical_specialty, Endocrinology, Traditional medicine, Nephrology, Physiology, business.industry, Physiology (medical), Internal medicine, medicine, General Medicine, business
Published
2015

2. c-ANCA as a marker of Wegener's disease

Author

D.J. Unsworth, C.R.V. Tomson, R.J. Lock, T.B. Wallington, T.G. Feest, C.F.M. Franssen, J.W. Cohen Tervaert, C.A. Stegeman, C.G.M. Kallenberg, JohnL. Niles, RobertT. McCluskey, HeatherE. Clark, Xavier Bosch, Alvaro Urbano-Márquez, StephenD.H. Malnick, DanielD. Bass, ZevM. Sthoeger, JayaK. Rao, Morris Weinberger, NancyB. Allen, and JohnR. Feussner

Subjects
Wegener s, C-ANCA, business.industry, Immunology, Medicine, General Medicine, Disease, business
Published
1996

3. GC-MS determination of ratios of stable-isotope labelled to natural urea using [13C15N2]urea for studying urea kinetics in serum and as a means to validate routine methods for the quantitative assay of urea in dialysate

Author

Bg Wolthers, G.T. Nagel, T.H.Y.de Haan, T. Tepper, Roel M. Huisman, J.J.van Leeuwen, A. Withag, and C.A. Stegeman

Subjects
Male, Clinical Biochemistry, Mass spectrometry, Biochemistry, Gas Chromatography-Mass Spectrometry, chemistry.chemical_compound, Urea kinetics, Humans, Urea, Carbon Isotopes, Chromatography, Nitrogen Isotopes, Stable isotope ratio, Biochemistry (medical), Reproducibility of Results, General Medicine, Middle Aged, Kinetics, chemistry, Quantitative assay, Isotope Labeling, Calibration, Gas chromatography, Gas chromatography–mass spectrometry, Quantitative analysis (chemistry), Dialysis
Abstract

A GC-MS determination of urea in serum or spent dialysate is described, using 13C15N2-labelled urea and assaying the area ratio of labelled to natural urea by mass fragmentographic monitoring of fragments m/e 153 and 156, after its eventual conversion into the trimethyl-silylether-derivative of 2-hydroxypyrimidine. The procedure can be successfully applied in the follow-up of the disappearance of labelled urea in serum after intravenous injection in man, enabling kinetic parameters of urea to be established, e.g. for purposes of studying the effectiveness of dialysis procedures. Furthermore the method can be used for validation of routine methods for measuring urea in other fluids, in particular dialysate. Examples are given of both applications of the GC-MS method described.

Published
1994

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