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Development and validation of GC-MS methods for the comprehensive analysis of amino acids in plasma and urine and applications to the HELLP syndrome and pediatric kidney transplantation: evidence of altered methylation, transamidination, and arginase activity.
Hanff E, Ruben S, Kreuzer M, Bollenbach A, Kayacelebi AA, Das AM, von Versen-Höynck F, von Kaisenberg C, Haffner D, Ückert S, Tsikas D. Hanff E, et al. Among authors: tsikas d. Amino Acids. 2019 Mar;51(3):529-547. doi: 10.1007/s00726-018-02688-w. Epub 2019 Jan 2. Amino Acids. 2019. PMID: 30604095
Determination of nitric oxide metabolites by means of the Griess assay and gas chromatography-mass spectrometry in the cavernous and systemic blood of healthy males and patients with erectile dysfunction during different functional conditions of the penis.
Becker AJ, Uckert S, Tsikas D, Noack H, Stief CG, Frölich JC, Wolf G, Jonas U. Becker AJ, et al. Among authors: tsikas d. Urol Res. 2000 Dec;28(6):364-9. doi: 10.1007/s002400000141. Urol Res. 2000. PMID: 11221914
Elevated asymmetric dimethylarginine (ADMA) and inverse correlation between circulating ADMA and glomerular filtration rate in children with sporadic focal segmental glomerulosclerosis (FSGS).
Lücke T, Kanzelmeyer N, Chobanyan K, Tsikas D, Franke D, Kemper MJ, Ehrich JH, Das AM. Lücke T, et al. Among authors: tsikas d. Nephrol Dial Transplant. 2008 Feb;23(2):734-40. doi: 10.1093/ndt/gfm761. Epub 2008 Jan 5. Nephrol Dial Transplant. 2008. PMID: 18175783 Free article.
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
453 results