Works by Holzgrabe, Ulrike

Results: 135

H-NMR Spectroscopy as a New Tool in the Assessment of the Oxidative State in Edible Oils.

Published in:

Journal of the American Oil Chemists' Society (JAOCS), 2012, v. 89, n. 8, p. 1383, doi. 10.1007/s11746-012-2051-9

By:

Skiera, Christina;
Steliopoulos, Panagiotis;
Kuballa, Thomas;
Holzgrabe, Ulrike;
Diehl, Bernd

Publication type:

Article

Chiral separations by cyclodextrin-modified capillary electrophoresis - Determination of the enantiomeric excess.

Published in:

Journal of Separation Science, 2002, v. 25, n. 15/17, p. 959, doi. 10.1002/1615-9314(20021101)25:15/17<959::AID-JSSC959>3.0.CO;2-Q

By:

Schmitt, Ulrich;
Branch, Sarah K.;
Holzgrabe, Ulrike

Publication type:

Article

Determination of binding constants of cyclodextrin inclusion complexes with amino acids and dipeptides by potentiometric titration.

Published in:

Chirality, 2004, v. 16, n. 8, p. 509, doi. 10.1002/chir.20068

By:

Kahle, Claudia;
Holzgrabe, Ulrike

Publication type:

Article

Tautomerism of 4-Hydroxy-2,5-dimethyl-3(2H)-furanone: Evidence for its enantioselective biosynthesis.

Published in:

Chirality, 2003, v. 15, n. 7, p. 573, doi. 10.1002/chir.10247

By:

Raab, Thomas;
Hauck, Tobias;
Knecht, Anja;
Schmitt, Ulrich;
Holzgrabe, Ulrike;
Schwab, Wilfried

Publication type:

Article

Chiral discrimination by NMR spectroscopy of ephedrine and N-methylephedrine induced by β-cyclodextrin, heptakis(2,3-di-O-acetyl)β-cyclodextrin, and heptakis (6-O-acetyl)β-cyclodextrin.

Published in:

Chirality, 1997, v. 9, n. 3, p. 211, doi. 10.1002/(SICI)1520-636X(1997)9:3<211::AID-CHIR2>3.0.CO;2-I

By:

Holzgrabe, Ulrike;
Mallwitz, Henning;
Branch, Sarah K.;
Jefferies, Terry M.;
Wiese, Michael

Publication type:

Article

Unveiling Colombia's medicinal Cannabis sativa treasure trove: Phenotypic and Chemotypic diversity in legal cultivation.

Published in:

Phytochemical Analysis, 2025, v. 36, n. 1, p. 246, doi. 10.1002/pca.3436

By:

Enríquez, Diego J.;
Alonso, Julio C.;
Hille, Lucas;
Brand, Stefan;
Holzgrabe, Ulrike;
Vergara, Daniela;
Montoya, Guillermo;
Ramírez, Yesid A.

Publication type:

Article

Chemometric analysis applied to 1H NMR and FTIR data for a quality parameter distinction of red fruit (Pandanus conoideus, lam.) oil products.

Published in:

Phytochemical Analysis, 2023, v. 34, n. 7, p. 788, doi. 10.1002/pca.3196

By:

Triyasmono, Liling;
Schollmayer, Curd;
Holzgrabe, Ulrike

Publication type:

Article

O-glycoside sequence of pentacyclic triterpene saponins from Phytolacca bogotensis using HPLC-ESI/multi-stage tandem mass spectrometry.

Published in:

Phytochemical Analysis, 2009, v. 20, n. 6, p. 465, doi. 10.1002/pca.1148

By:

Montoya, Guillermo;
Arango, Gabriel J.;
Unger, Matthias;
Holzgrabe, Ulrike

Publication type:

Article

Analytical characterisation of crude extracts from an african Ancistrocladus species using high-performance liquid chromatography and capillary electrophoresis coupled to ion trap mass spectrometry.

Published in:

Phytochemical Analysis, 2004, v. 15, n. 1, p. 21, doi. 10.1002/pca.737

By:

Matthias Unger;
Michael Dreyer;
Sven Specker;
Stefanie Laug;
Matthias Pelzing;
Christian Neusüß;
Ulrike Holzgrabe;
Gerhard Bringmann

Publication type:

Article

Rational design of dualsteric GPCR ligands: quests and promise.

Published in:

2010

By:

Mohr, Klaus;
Tränkle, Christian;
Kostenis, Evi;
Barocelli, Elisabetta;
De Amici, Marco;
Holzgrabe, Ulrike;
Tränkle, Christian

Publication type:

journal article

Natur häufig Vorbild.

Published in:

Nachrichten aus der Chemie, 2016, v. 64, n. 6, p. 605, doi. 10.1002/nadc.20164046023

By:

Meinel, Lorenz;
Seufert, Florian;
Glaser, Jan;
Hiltensperger, Georg;
Holzgrabe, Ulrike

Publication type:

Article

Synthesis and evaluation of antitrypanosomal activity of some thiosemicarbazide derivatives of 1-butyl-6-fluoro-7-morpholino-4-oxo-1,4-dihydroquinoline-3-carboxylic acid.

Published in:

Synthetic Communications, 2018, v. 48, n. 14, p. 1883, doi. 10.1080/00397911.2018.1476889

By:

Pyrih, Andriy;
Berninger, Michael;
Gzella, Andrzej;
Lesyk, Roman;
Holzgrabe, Ulrike

Publication type:

Article

Matrix-assisted laser desorption/ionization tandem mass spectrometry of N-glycans derivatized with isonicotinic hydrazide and its biotinylated form.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2014, v. 28, n. 15, p. 1745, doi. 10.1002/rcm.6955

By:

Bank, Stephanie;
Heller, Eberhard;
Memmel, Elisabeth;
Seibel, Jürgen;
Holzgrabe, Ulrike;
Kapková, Petra

Publication type:

Article

Literaturkarussell. Pharmazie.

Published in:

Chemie in unserer Zeit, 1996, v. 30, n. 5, p. XIV, doi. 10.1002/ciuz.19960300515

By:

Holzgrabe, Ulrike;
Friedrich, Christoph;
Pachaly, Peter

Publication type:

Article

Comparable Bioavailability and Disposition of Pefloxacin in Patients with Cystic Fibrosis and Healthy Volunteers Assessed via Population Pharmacokinetics.

Published in:

Pharmaceutics, 2019, v. 11, n. 7, p. 323, doi. 10.3390/pharmaceutics11070323

By:

Bulitta, Jürgen B.;
Jiao, Yuanyuan;
Landersdorfer, Cornelia B.;
Sutaria, Dhruvitkumar S.;
Tao, Xun;
Shin, Eunjeong;
Höhl, Rainer;
Holzgrabe, Ulrike;
Stephan, Ulrich;
Sörgel, Fritz

Publication type:

Article

Novel Population Pharmacokinetic Approach to Explain the Differences between Cystic Fibrosis Patients and Healthy Volunteers via Protein Binding.

Published in:

Pharmaceutics, 2019, v. 11, n. 6, p. 286, doi. 10.3390/pharmaceutics11060286

By:

Shah, Nirav R.;
Bulitta, Jürgen B.;
Kinzig, Martina;
Landersdorfer, Cornelia B.;
Jiao, Yuanyuan;
Sutaria, Dhruvitkumar S.;
Tao, Xun;
Höhl, Rainer;
Holzgrabe, Ulrike;
Kees, Frieder;
Stephan, Ulrich;
Sörgel, Fritz

Publication type:

Article

Analytical Quality by Design: Achieving Robustness of an LC-CAD Method for the Analysis of Non-Volatile Fatty Acids.

Published in:

Pharmaceuticals (14248247), 2023, v. 16, n. 4, p. 478, doi. 10.3390/ph16040478

By:

Walther, Rasmus;
Krmar, Jovana;
Leistner, Adrian;
Svrkota, Bojana;
Otašević, Biljana;
Malenović, Andjelija;
Holzgrabe, Ulrike;
Protić, Ana

Publication type:

Article

Bitopic muscarinic agonists and antagonists and uses thereof: a patent evaluation of US20160136145A1.

Published in:

Expert Opinion on Therapeutic Patents, 2017, v. 27, n. 2, p. 121, doi. 10.1080/13543776.2017.1272577

By:

Holzgrabe, Ulrike;
Decker, Michael

Publication type:

Article

Simultaneous Determination of the Saponification Value, Acid Value, Ester Value, and Iodine Value in Commercially Available Red Fruit Oil (Pandanus conoideus, Lam.) Using 1H qNMR Spectroscopy.

Published in:

Food Analytical Methods, 2023, v. 16, n. 1, p. 155, doi. 10.1007/s12161-022-02401-4

By:

Triyasmono, Liling;
Schollmayer, Curd;
Schmitz, Jens;
Hovah, Emilie;
Lombo, Cristian;
Schmidt, Sebastian;
Holzgrabe, Ulrike

Publication type:

Article

H NMR approach as an alternative to the classical p-anisidine value method.

Published in:

European Food Research & Technology, 2012, v. 235, n. 6, p. 1101, doi. 10.1007/s00217-012-1841-5

By:

Skiera, Christina;
Steliopoulos, Panagiotis;
Kuballa, Thomas;
Holzgrabe, Ulrike;
Diehl, Bernd

Publication type:

Article

Isolation of a novel compound (MIMO2) from the methanolic extract of Moringa oleifera leaves: protective effects against vanadium-induced cytotoxity.

Published in:

Drug & Chemical Toxicology, 2018, v. 41, n. 3, p. 249, doi. 10.1080/01480545.2017.1366504

By:

Igado, Olumayowa O.;
Glaser, Jan;
Ramos-Tirado, Mario;
Bankoğlu, Ezgi Eylül;
Atiba, Foluso A.;
Holzgrabe, Ulrike;
Stopper, Helga;
Olopade, James O.

Publication type:

Article

Tyrosinase Inhibition Type of Isolated Compounds Obtained from Pachyrhizus erosus.

Published in:

Aceh International Journal of Science & Technology, 2013, v. 2, n. 3, p. 98, doi. 10.13170/AIJST.0203.05

By:

Lukitaningsih, Endang;
Bahi, Muhammad;
Holzgrabe, Ulrike

Publication type:

Article

Inhibition of macrophage infectivity potentiator in Burkholderia pseudomallei suppresses pro-inflammatory responses in murine macrophages.

Published in:

Frontiers in Cellular & Infection Microbiology, 2024, p. 1, doi. 10.3389/fcimb.2024.1353682

By:

Iwasaki, Jua;
Bzdyl, Nicole M.;
Lin-Sullivan, Dion J. M.;
Scheuplein, Nicolas J.;
Dueñas, Maria Emilia;
de Jong, Emma;
Harmer, Nicholas J.;
Holzgrabe, Ulrike;
Sarkar-Tyson, Mitali

Publication type:

Article

A long‐time stability study of 50 drug substances representing common drug classes of pharmaceutical use.

Published in:

Drug Testing & Analysis, 2019, v. 11, n. 7, p. 1065, doi. 10.1002/dta.2593

By:

Zilker, Markus;
Sörgel, Fritz;
Holzgrabe, Ulrike

Publication type:

Article

Quality of the antimalarial medicine artemether – lumefantrine in 8 cities of the Democratic Republic of the Congo.

Published in:

Drug Testing & Analysis, 2018, v. 10, n. 10, p. 1599, doi. 10.1002/dta.2420

By:

Mufusama, Jean‐Pierre;
Ndjoko Ioset, Karine;
Feineis, Doris;
Hoellein, Ludwig;
Holzgrabe, Ulrike;
Bringmann, Gerhard

Publication type:

Article

Molecular Alliance-From Orthosteric and Allosteric Ligands to Dualsteric/Bitopic Agonists at G Protein Coupled Receptors.

Published in:

Angewandte Chemie International Edition, 2013, v. 52, n. 2, p. 508, doi. 10.1002/anie.201205315

By:

Mohr, Klaus;
Schmitz, Jens;
Schrage, Ramona;
Tränkle, Christian;
Holzgrabe, Ulrike

Publication type:

Article

Qualitative and quantitative ¹H NMR spectroscopy for determination of divalent metal cation concentration in model salt solutions, food supplements, and pharmaceutical products by using EDTA as chelating agent.

Published in:

Magnetic Resonance in Chemistry, 2020, v. 58, n. 7, p. 653, doi. 10.1002/mrc.5009

By:

Hafer, Elina;
Holzgrabe, Ulrike;
Kraus, Katharina;
Adams, Kristie;
Hook, James M.;
Diehl, Bernd

Publication type:

Article

Assignment of the major and minor components of gentamicin for evaluation of batches.

Published in:

Magnetic Resonance in Chemistry, 2003, v. 41, n. 8, p. 589, doi. 10.1002/mrc.1222

By:

Ralph Deubner;
Curd Schollmayer;
Frank Wienen;
Ulrike Holzgrabe

Publication type:

Article

Allosteric site in M2 acetylcholine receptors: evidence for a major conformational change upon binding of an orthosteric agonist instead of an antagonist.

Published in:

Naunyn-Schmiedeberg's Archives of Pharmacology, 2006, v. 372, n. 4, p. 267, doi. 10.1007/s00210-005-0023-4

By:

Groβmüller, Maren;
Antony, Johannes;
Tränkle, Christian;
Holzgrabe, Ulrike;
Mohr, Klaus

Publication type:

Article

Regulatory framework in Pakistan: situation analysis of medicine quality and future recommendations.

Published in:

Journal of Pharmaceutical Policy & Practice, 2019, v. 12, n. 1, p. N.PAG, doi. 10.1186/s40545-019-0184-z

By:

Rasheed, Huma;
Hoellein, Ludwig;
Bukhari, Khalid Saeed;
Holzgrabe, Ulrike

Publication type:

Article

NMR Spectroscopy: Determination of Peroxide Value in Vegetable and Krill Oil by Using Triphenylphosphine as Tagging Reagent.

Published in:

European Journal of Lipid Science & Technology, 2020, v. 122, n. 5, p. 1, doi. 10.1002/ejlt.201900442

By:

Hafer, Elina;
Holzgrabe, Ulrike;
Wiedemann, Sascha;
Adams, Kristie M.;
Diehl, Bernd

Publication type:

Article

Quality and composition of Albendazole, Mebendazole and Praziquantel available in Burkina Faso, Côte d'Ivoire, Ghana and Tanzania.

Published in:

PLoS Neglected Tropical Diseases, 2021, v. 15, n. 1, p. 1, doi. 10.1371/journal.pntd.0009038

By:

Seitzer, Moritz;
Klapper, Sylvia;
Mazigo, Humphrey D.;
Holzgrabe, Ulrike;
Mueller, Andreas

Publication type:

Article

Ionic Liquid Versus Prodrug Strategy to Address Formulation Challenges.

Published in:

Pharmaceutical Research, 2015, v. 32, n. 6, p. 2154, doi. 10.1007/s11095-014-1607-9

By:

Balk, Anja;
Widmer, Toni;
Wiest, Johannes;
Bruhn, Heike;
Rybak, Jens-Christoph;
Matthes, Philipp;
Müller-Buschbaum, Klaus;
Sakalis, Anastasios;
Lühmann, Tessa;
Berghausen, Jörg;
Holzgrabe, Ulrike;
Galli, Bruno;
Meinel, Lorenz

Publication type:

Article

Erratum to: Comparison of established and novel purity tests for the quality control of heparin by means of a set of 177 heparin samples.

Published in:

2011

By:

Alban, Susanne;
Lühn, Susanne;
Schiemann, Simone;
Beyer, Tanja;
Norwig, Jochen;
Schilling, Claudia;
Rädler, Oliver;
Wolf, Bernhard;
Matz, Magnus;
Baumann, Knut;
Holzgrabe, Ulrike

Publication type:

Correction Notice

Comparison of established and novel purity tests for the quality control of heparin by means of a set of 177 heparin samples.

Published in:

Analytical & Bioanalytical Chemistry, 2011, v. 399, n. 2, p. 605, doi. 10.1007/s00216-010-4169-7

By:

Alban, Susanne;
Lühn, Susanne;
Schiemann, Simone;
Beyer, Tanja;
Norwig, Jochen;
Schilling, Claudia;
Rädler, Oliver;
Wolf, Bernhard;
Matz, Magnus;
Baumann, Knut;
Holzgrabe, Ulrike

Publication type:

Article

Bio oder nicht - lassen sich die Produkte durch 1H-NMR-Spektroskopie unterscheiden?

Published in:

Chemie in unserer Zeit, 2015, v. 49, n. 1, p. 8, doi. 10.1002/ciuz.201480017

By:

Hohmann, Monika;
Christoph, Norbert;
Wachter, Helmut;
Holzgrabe, Ulrike

Publication type:

Article

qNMR in natural products: practical approaches. What nobody tells you before starting your qNMR study!

Published in:

Frontiers in Natural Products, 2024, p. 1, doi. 10.3389/fntpr.2024.1416195

By:

Marcal Ravaglia, Luciana;
Dias de Oliveira, Paola;
Holzgrabe, Ulrike;
Braz Alcantara, Glaucia

Publication type:

Article

Penetration of Antibacterials into Bone: Pharmacokinetic, Pharmacodynamic and Bioanalytical Considerations.

Published in:

Clinical Pharmacokinetics, 2009, v. 48, n. 2, p. 89, doi. 10.2165/00003088-200948020-00002

By:

Landersdorfer, Cornelia B.;
Bulitta, Jürgen B.;
Kinzig, Martina;
Holzgrabe, Ulrike;
Sörgel, Fritz

Publication type:

Article

Emerging Antimicrobial Drug Resistance in Africa and Latin America: Search for Reasons.

Published in:

Risk Management & Healthcare Policy, 2022, v. 15, p. 827, doi. 10.2147/RMHP.S205077

By:

Hoellein, Ludwig;
Kaale, Eliangiringa;
Mwalwisi, Yonah Hebron;
Schulze, Marco H;
Vetye-Maler, Carina;
Holzgrabe, Ulrike

Publication type:

Article

A Convenient Preparation of Carboxy-γ-pyrone Derivatives: Meconic Acid and Comenic Acid.

Published in:

Organic Preparations & Procedures International, 2018, v. 50, n. 5, p. 512, doi. 10.1080/00304948.2018.1525990

By:

Güntzel, Paul;
Forster, Leonard;
Schollmayer, Curd;
Holzgrabe, Ulrike

Publication type:

Article

High-performance liquid chromatography evaluation of the enantiomeric purity of amino acids by means of automated precolumn derivatization with ortho-phthalaldehyde and chiral thiols.

Published in:

Chirality, 2016, v. 28, n. 12, p. 795, doi. 10.1002/chir.22660

By:

Kühnreich, Raphael;
Holzgrabe, Ulrike

Publication type:

Article

Quantification of Hydrochlorothiazide and Ramipril/Ramiprilate in Blood Serum and Cerebrospinal Fluid: A Pharmacokinetic Assessment of Central Nervous System Adverse Effects.

Published in:

Pharmacology, 2018, v. 102, n. 3/4, p. 133, doi. 10.1159/000489999

By:

Sigaroudi, Ali;
Kinzig, Martina;
Wahl, Oliver;
Stelzer, Christoph;
Schroeter, Michael;
Fuhr, Uwe;
Holzgrabe, Ulrike;
Sörgel, Fritz

Publication type:

Article

Quantification of Bisoprolol and Metoprolol in Simultaneous Human Serum and Cerebrospinal Fluid Samples.

Published in:

Pharmacology, 2017, v. 101, n. 1/2, p. 29, doi. 10.1159/000480091

By:

Sigaroudi, Ali;
Kinzig, Martina;
Wahl, Oliver;
Stelzer, Christoph;
Schroeter, Michael;
Fuhr, Uwe;
Holzgrabe, Ulrike;
Sörgel, Fritz

Publication type:

Article

Comparison of Pantoprazole Concentrations in Simultaneous Cerebrospinal Fluid and Serum Samples.

Published in:

Pharmacology, 2016, v. 98, n. 1/2, p. 70, doi. 10.1159/000445720

By:

Sigaroudi, ali;
Stelzer, Christoph;
Braun, Tina;
Frechen, Sebastian;
Hüttner, Sven;
Schröter, Michael;
Kinzig, Martina;
Fuhr, Uwe;
Holzgrabe, Ulrike;
Sörgel, Fritz

Publication type:

Article

Quaternary Ammonium Salts and Their Antimicrobial Potential: Targets or Nonspecific Interactions?

Published in:

ChemMedChem, 2012, v. 7, n. 1, p. 22, doi. 10.1002/cmdc.201100404

By:

Tischer, Maximilian;
Pradel, Gabriele;
Ohlsen, Knut;
Holzgrabe, Ulrike

Publication type:

Article

Meropenem-Clavulanate: A New Strategy for the Treatment of Tuberculosis?

Published in:

ChemMedChem, 2009, v. 4, n. 7, p. 1051, doi. 10.1002/cmdc.200900155

By:

Holzgrabe, Ulrike

Publication type:

Article

Interlaboratory Comparison Test as an Evaluation of Applicability of an Alternative Edible Oil Analysis by ¹H NMR Spectroscopy.

Published in:

Journal of AOAC International, 2017, v. 100, n. 6, p. 1819, doi. 10.5740/jaoacint.17-0063

By:

ZAILER, ELINA;
HOLZGRABE, ULRIKE;
DIEHL, BERND W. K.

Publication type:

Article

Ein photoschaltbarer Ligand zur Regulierung der Rezeptoraktivierung.

Published in:

Angewandte Chemie, 2017, v. 129, n. 25, p. 7388, doi. 10.1002/ange.201701524

By:

Agnetta, Luca;
Kauk, Michael;
Canizal, Maria Consuelo Alonso;
Messerer, Regina;
Holzgrabe, Ulrike;
Hoffmann, Carsten;
Decker, Michael

Publication type:

Article

Arzneistoffentwicklung, ein moderner Zehnkampf.

Published in:

Angewandte Chemie, 2013, v. 125, n. 15, p. 4164, doi. 10.1002/ange.201210006

By:

Laufer, Stefan;
Holzgrabe, Ulrike;
Steinhilber, Dieter

Publication type:

Article

Molekulare Allianz - von orthosterischen und allosterischen Liganden zu dualsterischen/bitopischen Agonisten G-Protein-gekoppelter Rezeptoren.

Published in:

Angewandte Chemie, 2013, v. 125, n. 2, p. 530, doi. 10.1002/ange.201205315

By:

Mohr, Klaus;
Schmitz, Jens;
Schrage, Ramona;
Tränkle, Christian;
Holzgrabe, Ulrike

Publication type:

Article