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Blood pressure reductions following catheter-based renal denervation are not related to improvements in adherence to antihypertensive drugs measured by urine/plasma toxicological analysis.
Ewen S, Meyer MR, Cremers B, Laufs U, Helfer AG, Linz D, Kindermann I, Ukena C, Burnier M, Wagenpfeil S, Maurer HH, Böhm M, Mahfoud F. Ewen S, et al. Clin Res Cardiol. 2015 Dec;104(12):1097-105. doi: 10.1007/s00392-015-0905-5. Epub 2015 Aug 26. Clin Res Cardiol. 2015. PMID: 26306594
Witnessed drug intake before planned denervation--always harmless?
Linicus Y, Kindermann I, Helfer AG, Meyer MR, Maurer HH, Mahfoud F, Böhm M. Linicus Y, et al. Int J Cardiol. 2015 Jan 20;179:125-6. doi: 10.1016/j.ijcard.2014.10.162. Epub 2014 Oct 28. Int J Cardiol. 2015. PMID: 25464430 No abstract available.
Studies on the metabolism and toxicological detection of the new psychoactive designer drug 2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine (25I-NBOMe) in human and rat urine using GC-MS, LC-MS(n), and LC-HR-MS/MS.
Caspar AT, Helfer AG, Michely JA, Auwärter V, Brandt SD, Meyer MR, Maurer HH. Caspar AT, et al. Among authors: helfer ag. Anal Bioanal Chem. 2015 Sep;407(22):6697-719. doi: 10.1007/s00216-015-8828-6. Epub 2015 Jun 25. Anal Bioanal Chem. 2015. PMID: 26108532
LC-HR-MS/MS standard urine screening approach: Pros and cons of automated on-line extraction by turbulent flow chromatography versus dilute-and-shoot and comparison with established urine precipitation.
Helfer AG, Michely JA, Weber AA, Meyer MR, Maurer HH. Helfer AG, et al. J Chromatogr B Analyt Technol Biomed Life Sci. 2017 Feb 1;1043:138-149. doi: 10.1016/j.jchromb.2016.06.036. Epub 2016 Jun 21. J Chromatogr B Analyt Technol Biomed Life Sci. 2017. PMID: 27381570
71 results