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Accurate quantification of dimethylamine (DMA) in human urine by gas chromatography-mass spectrometry as pentafluorobenzamide derivative: evaluation of the relationship between DMA and its precursor asymmetric dimethylarginine (ADMA) in health and disease.
Tsikas D, Thum T, Becker T, Pham VV, Chobanyan K, Mitschke A, Beckmann B, Gutzki FM, Bauersachs J, Stichtenoth DO. Tsikas D, et al. J Chromatogr B Analyt Technol Biomed Life Sci. 2007 May 15;851(1-2):229-39. doi: 10.1016/j.jchromb.2006.09.015. Epub 2006 Sep 29. J Chromatogr B Analyt Technol Biomed Life Sci. 2007. PMID: 17011246
GC-MS assay for hepatic DDAH activity in diabetic and non-diabetic rats by measuring dimethylamine (DMA) formed from asymmetric dimethylarginine (ADMA): evaluation of the importance of S-nitrosothiols as inhibitors of DDAH activity in vitro and in vivo in humans.
Chobanyan K, Thum T, Suchy MT, Zhu B, Mitschke A, Gutzki FM, Beckmann B, Stichtenoth DO, Tsikas D. Chobanyan K, et al. Among authors: tsikas d. J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Oct 15;858(1-2):32-41. doi: 10.1016/j.jchromb.2007.08.002. Epub 2007 Aug 7. J Chromatogr B Analyt Technol Biomed Life Sci. 2007. PMID: 17825631
De novo synthesis of trideuteromethyl esters of amino acids for use in GC-MS and GC-tandem MS exemplified for ADMA in human plasma and urine: standardization, validation, comparison and proof of evidence for their aptitude as internal standards.
Tsikas D. Tsikas D. J Chromatogr B Analyt Technol Biomed Life Sci. 2009 Aug 1;877(23):2308-20. doi: 10.1016/j.jchromb.2009.01.005. Epub 2009 Jan 14. J Chromatogr B Analyt Technol Biomed Life Sci. 2009. PMID: 19168404
Free iron ions decrease indoleamine 2,3-dioxygenase expression and reduce IFNgamma-induced inhibition of Chlamydia trachomatis infection.
Krausse-Opatz B, Wittkop U, Gutzki FM, Schmidt C, Jürgens-Saathoff B, Meier S, Beckmann B, Takikawa O, Morgan MA, Tsikas D, Stichtenoth DO, Wagner AD, Zeidler H, Köhler L. Krausse-Opatz B, et al. Among authors: tsikas d. Microb Pathog. 2009 Jun;46(6):289-97. doi: 10.1016/j.micpath.2009.03.001. Epub 2009 Mar 21. Microb Pathog. 2009. PMID: 19306922
453 results