Lebenslauf
:: Prof Leibfritz
::
Publikationsliste / Publication List (Prof. Dr.
Dieter Leibfritz)
Zeitschriftenartikel und Bücher/ Journal Articles and Books
- S.M. Kakkad, M.F. Penet, A. Akhbardeh, A.P. Pathak, M. Solaiyappan, V. Raman, D. leibfritz, K. Glunde, Z.M. Bhujwalla.
Hypoxic tumor environments exhibit disrupted collagen I fibers and low macromolecular transport.
PLoS One. 8,e81869(2013).
- J.B. Hövener, N. Schwaderlapp, T. Lickert, S.B. Duckett,
R.E. Mewis, L.A. Highton, S.M. Kenny, G.G. Green, D. Leibfritz, J.G.
Korvink, J. Hennig, D. von Elverfeldt.
A hyperpolarized equilibrium for magnetic resonance.
Nat Commun. 4,2946(2013).
- J. Klawitter, J. Klawitter, E. Agardi, K. Corby, D. Leibfritz, B.D. Lowes, U. Christians, T. Seres.
Association of DJ-1/PTEN/AKT- and ASK1/p38-mediated cell signalling with ischaemic cardiomyopathy.
Cardiovasc Res. 97:66-76(2013).
- J.B. Hövener, S. Bär, J. Leupold, K. Jenne , D. Leibfritz, J. Hennig, S. B. Duckett, D. von Elverfeldt.
A continuous-flow, high-throughput, high-pressure parahydrogen converter for hyperpolarization in a clinical setting.
NMR Biomed. 26, 124-131(2013).
- S.M. Kakkad, M. Solaiyappan, P. Argani, S. Sukumar, L.K. Jacobs, D. leibfritz, Z.M. Bhujwalla, K. Glunde.
Collagen I fiber density increases in lymph node positive breast cancers: pilot study.
J Biomed Opt. 17:116017(2012).
- S. Bär, T. Lange, D. leibfritz, J. Hennig, D. von Elverfeldt, J.B. Hövener.
On the spin order transfer from parahydrogen to another nucleus.
J Magn Reson. 225:25-35(2012).
- J. Klawitter, J. Klawitter, V. Schmitz, N. Brunner, A. Crunk, K.
Corby, J. Bendrick-Peart, D. Leibfritz, C.L. Edelstein, J.M. Thurman,
U. Christians.
Low-salt diet and cyclosporine nephrotoxicity: changes in kidney cell metabolism.
J Proteome Res. 11, 5135-5144(2012).
- W. Dreher, P. Erhard, D. Leibfritz.
Fast 3D proton spectroscopic imaging
of the human brain at 3 Tesla by combining spectroscopic missing pulse SSFP and echo planar spectroscopic imaging. Magn. Reson. Med. 66, 1518-1525 (2011).
- J. Willmann, H. Thiele, D. Leibfritz.
Combined
reversed phase HPLC, mass spectrometry, and NMR spectroscopy for a fast
separation and efficient identification of phosphatidylcholines.
J Biomed Biotechnol. pii: 385786(2011).
- J. Klawitter, J. Klawitter J, E. Kushner, K. Jonscher, J. Bendrick-Peart, D. Leibfritz, U. Christians, V. Schmitz.
Association
of immunosuppressant-induced protein changes in the rat kidney with
changes in urine metabolite patterns: A proteo-metabonomic study. J. of Proteome Ress 9, 865-875 (2010). - J. Klawitter, S. Gottschalk, C. Hainz, D. Leibfritz, U. Christians, N.J. Serkova.
Immunosuppressant neurotoxicity in rat brain models: oxidative stress and cellular metabolism. Chem. Res. Toxicol. 23, 608-619 (2010). - S. Elitok, S. Trump, H.
Hampl, D. Leibfritz, R. Kettritz, F.C.Luft.
Recurrent metabolic acidosis
in a dialysis patient. Kidney Int. 78, 425-6 (2010). - R. Murín, G.
Mohammadi, B. Kowtharapu, D. Leibfritz, B. Hamprecht.
Metabolism of [U-13C]Aspartate by Astroglial Cultures: Nuclear MagneticResonance Analysis of the Culture Media. Neurochem. Res. 35, 2053-2061 (2010). - J. Klawitter, M. Haschke, C. Kahle, C. Dingmann, J. Klawitter, D. Leibfritz, U. Christians.
Toxicodynamic
effects of ciclosporin are reflected by metabolite profiles in the
urine of healthy individuals after a single dose. Br. J. Pharmacol. 70, 241-251 (2010). - J. Klawitter; S. Gottschalk, C. Hainz, D.
Leibfritz, U. Christians, N. Serkova.
Immunosuppressant neurotoxicity in rat brain models: Oxidative stress and cellular metabolism. Chem. Res. Toxicol. 23, 608–619 (2010). - J. Klawitter, J. Klawitter, E. Kushner, K.
Jonscher, J. Bendrick-Peart,D. Leibfritz, U. Christians,
V. Schmitz.
Association of
immunosuppressant-induced protein changes in the rat kidney with changes in urine
metabolite patterns: a proteo-metabonomic study. J. Proteome Res. 9, 865-875 (2010). - V.
Schmitz, J. Klawitter, J. Bendrick-Peart, G. Puhl, M. Haschke, J.
Klawitter, Z.V. Tran, J. Chan, D. Leibfritz, U. Christians.
Metabonomic profiles reflect nephrotoxicity of Sirolimus and Cyclosporine in rat kidney transplantation. Nephron Physiol., 111, 80-91 (2009). - J. R. Liddell, C. Zwingmann, D. Leibfritz,
S. R. Robinson, R. Dringen.
Sustained hydrogen peroxide
stress decreases lactate production by cultured astrocytes. J. Neurosci. Res. 87, 2696-708 (2009). - J. Klawitter, N. Anderson, J.
Klawitter, U. Christians, D. Leibfritz, S.G. Eckhardt, N.J. Serkova.
Time-dependent effects of imatinib in human leukemia cells:a kinetic NMR-profiling study. Br. J. Cancer 100, 923-931 (2009). - J. Klawitter, D. Kominsky, J. Brown, J.
Klawitter, U. Christians,D. Leibfritz, J. Melo, G.
Eckhardt, N.J. Serkova.
Metabolic consequences of
imatinib resistance in chronic myeloid leukemia cells. Br. J. Pharmacol. 158, 588-600 (2009). - R. Murin, G. Mohammadi, D. Leibfritz, B.
Hamprecht.
Glial metabolism of valine. Neurochem. Res. 34, 1195-1203 (2009). - Z. Dong, W. Dreher,
D. Leibfritz, B. Peterson.
Challenges of using MR spectroscopy to detect neural progenitor cells in vivo. AJNR 30, 1096-1101 (2009). - J. Klawitter, J.
Bendrick-Peart, B. Rudolph, V. Beckey, J. Klawitter,M. Haschke, C. J.Rivard, L.
Chan, D. Leibfritz, U. Christians, V. Schmitz.
Urine
metabolites reflect time-dependent effects of cyclosporine and sirolimus on rat kidney function. Chem. Res. Toxicol. 22, 118-128 (2009). - R.
Murin, G. Mohammadi, D. Leibfritz, B. Hamprecht.
Glial metabolism of isoleucine. Neurochem. Research 34,
194-204 (2009). - C. Schuster,
W. Dreher, J. Stadler, J. Bernarding, D. Leibfritz.
Fast 3D 1H MR spectroscopic imaging at 7 Tesla using „Spectroscopic Missing Pulse – SSFP“. Magn. Reson. Med. 60, 1243-1249 (2008). - J.
Willmann, H. Thiele, D. Leibfritz.
Hyphenated tools
for phospholipidomics. J. Biomol. Tech. 19, 211–216 (2008). - J. Klawitter, C. J. Rivard, L.M. Brown, J.
M. Capasso, N. E. Almeida, A. B. Maunsbach, K. Pihakaski-Maunsbach,
T. Berl, D. Leibfritz, U. Christians, L. Chan.
A metabonomic and proteomic analysis of changes in IMCD3 cells chronically adapted to hypertonicity. Nephron Physiol. 109, 1-10 (2008). - S. Vielhaber, H. G. Niessen, Grazyna
Debska-Vielhaber, Alexei P. Kudin, J. Wellmer, J. Kaufmann, M. A.
Schönfeld, R. Fendrich, W. Willker, D. Leibfritz, J. Schramm, Ch.
E. Elger, H.-J. Heinze, W. S. Kunz.
Subfield-specific loss of hippocampal N-acetyl aspartate in temporal
lobe epilepsy. Epilepsia 49, 40-50 (2008). - J. Klawitter, V. Schmitz, J. Klawitter-Miljus,
D. Leibfritz, U. Christians.
Development and validation of an assay for the quantification of 11 nucleotides using LC/LC-electrospray ionization-MS. Anal. Biochem. 365, 230-239 (2007). - C.
Zwingmann, D. Leibfritz, A. S. Hazell.
13C-NMR
spectroscopic analysis of region-selective changes in brain energy
metabolism in a subacute rat model of manganese neurotoxicity. Glia 55,
1610-1617 (2007). - J. Willmann, M. Röben, S.
Woynowski, M. Spraul, H. Thiele, D. Leibfritz.
Characterization
of lysophosphatidylcholine in lipid extracts by hyphenated techniques. Chemistry and Physics of Lipids 149, Supplement 1, 89 (2007). - D. Mayer, W. Dreher, D. Leibfritz, D. M.
Spielman.
RF refocused echoes of J-coupled spin systems: Effects on RARE based spectroscopic imaging. Magn. Reson. Med. 57, 967-971 (2007). - J. Willmann, K. Mahlstedt, M. Spraul, H.
Thiele, D. Leibfritz.
Characterization of sphingomyelins in lipid extracts using a HPLC-MS-Offline-NMR method. Anal. Chem. 79, 4188-4191 (2007). - H. G. Niessen, G. Debska-Vielhaber, K.
Sander, F. Angenstein, A. C. Ludolph, L. Hilfert, W. Willker, D. Leibfritz, H.-J. Heinze, W. S. Kunz, S. Vielhaber.
Metabolic progression markers of neurodegeneration in the transgenic G93A-SODI mouse model of amyotrophic lateral sclerosis. Eur.
J. Neurosci. 25, 1669-1677 (2007). - D. Leibfritz, W. Dreher,
W. Willker.
In vivo NMR applications of
metabonomics. Chapter
17 (page 489-516) in “The Handbook of Metabonomics and Metabolomics”,J.
C. Lindon, J. K. Nicholson, E. Holmes (eds.), Elsevier B. V. Amsterdam
2007. - M. Valko. D. Leibfritz, J. Moncol, M.T.D.
Cronin, M. Mazur, T. Telser.
Free Radicals and antioxidants in normal physiological functions and human
disease. The Int. J. of Biochem. & Cell Biol. 39,
44-84 (2007). - C. Schuster, W. Dreher, Ch. Geppert, D.
Leibfritz.
Fast 3D 1H spectroscopic imaging at 3 Tesla using Spectroscopic Missing-Pulse SSFP with 3D spatial preselection. Magn. Reson. Med., 57, 82-89 (2007). - C. Zwingmann, D. Leibfritz.
Glial-neuronal shuttle systems. Chapter 1.2 in Vol. 5 Brain Energetics: Integration
of Molecular and Cellular Processes (Eds. G. E. Gibson and G. Dienel) in Handbook
of Neurochemistry & Molecular Neurobiology 3rd Edition (A.
Lajtha (ed.)), New York Springer Berlin (2007). - S. Trump, S. Laudi, N. Unruh, R. Goelz, D.
Leibfritz.
1-H-NMR Metabolic Profiling of Human Neonatal Urine. Magma 19, 305-312 (2006). - C. Geppert, W. Dreher, M. Althaus, D. Leibfritz.
Fast 1H spectroscopic imaging using steady state free precession and spectral-spatial RF pulses. Magma 19, 196-201 (2006). - A. Ebel,
W. Dreher, D. Leibfritz.
Effects
of zero filling and apodization on spectral integrals in discrete Fourier-transform spectroscopy of noisy data. J. Magn. Reson. 182, 330-338 (2006). - M.
Langenbuch, C. Bock, D. Leibfritz, H. O. Pörtner.
Effects
of environmental hypercapnia on animal physiology: A 13C NMR study of
protein synthesis rates in the marine invertebrate Sipunculus nudus. Comp. Biochem. and Physiol., Part A 144, 479-484 (2006). - M.
Althaus, W. Dreher, C. Geppert, D. Leibfritz.
Fast 3D echo-planar SSFP-based 1H spectroscopic imaging: Demonstration on the rat brain in vivo. Magn. Reson. Imag. 24, 549-555
(2006). - Z. Dong,
W. Dreher, D. Leibfritz.
Toward quantitative short echo time in
vivo proton MR spectroscopy without water suppression. Magn. Reson. Med. 55, 1441-1446
(2006). - T.
Shokati, C. Zwingmann, D. Leibfritz.
Contribution
of extracellular glutamine as an anaplerotic substrate to neuronal
metabolism: a re-evaluation by multinuclear NMR spectroscopy in primary
cultured neurons. Neurochem. Reson. 30, 1269-1281
(2005). - C.
Zwingmann, D. Leibfritz.
Ammonia-toxicity under hyponatremic conditions in astrocytes: De novo synthesis of amino acids for
the osmoregulatory response. Neurochem. Int. 47, 39-50 (2005). - W.
Dreher, D. Leibfritz.
New method for the simultaneous detection of metabolites and water in localized in vivo 1H
nuclear magnetic spectroscopy. Magn. Reson. Med. 54, 190-195 (2005). - M. G. Bixel, J. Engelmann,
W. Willker, B. Hamprecht, D. Leibfritz.
Metabolism of [U-13C]leucine in
cultured astroglial cells. Neurochem. Reson.
29, 2057-2067 (2004). - U. Christians, S. Gottschalk, J. Miljus, C. Hainz, L.
Z. Benet, D. Leibfritz, N. Serkova.
Alterations
in glucose metabolism by cyclosporine in rat brain slices link to
oxidative stress: interactions with mTOR inhibitors. Br J Pharmacology 143, 388-396
(2004). - C. Zwingmann, N. Chatauret, D.
Leibfritz, R. F. Butterworth.
Selective alterations of brain osmolytes in acute liver failure: protective effect
of mild hypothermia. Brain Res. 999, 118-123 (2004). - C. Zwingmann, D. Leibfritz, A.
S. Hazell.
Brain energy metabolism in a sub-acute rat model of manganese neurotoxicity: An ex vivo nuclear magnetic resonance
study using [1-13C]glucose. Neurotoxicology 25, 573-587 (2004). - Z. Dong, W. Dreher, D.
Leibfritz.
An experimental method to eliminate frequency modulation sidebands in localized
in vivo 1H MR spectra
acquired without water suppression. Magn. Reson. Med., 51, 602-606
(2004). - C. Zwingmann, D. Leibfritz.
Regulation of glial metabolism studied by 13C-NMR. NMR in Biomed. 16, 370-399 (2003). - C. Geppert, W. Dreher, D.
Leibfritz.
PRESS based proton single-voxel spectroscopy and spectroscopic imaging with
very short echo times using asymmetric RF pulses. MAGMA 16, 144-148 (2003). - W. Dreher, C. Geppert, M.
Althaus, D. Leibfritz.
Fast proton spectroscopic imaging using steady-state free precession methods. Magn. Reson. Med. 50, 453-460 (2003). - Brezova, M. Valko, M.
Breza, H. Morris, J. Telser, D. Dvoranova, K. Kaiserova, L. Varecka, M. Mazur, D. Leibfritz.
Role of radicals and singlet oxygen in photoactivated DNA cleavage by the
anticancer drug camptothecin: An electron paramagnetic resonance study. J. Phys. Chem. B, 107, 2415-2425
(2003). - C.
Zwingmann, D. Leibfritz, A.S. Hazell.
Role of manganese in hepatic encephalopathy. Adv.
in Hepatic Encephalopathy and Nitrogen Metabolism. EA Jones, RAFM
Chamuleau and AJ Meijer, eds., Kluwer, Dordrecht, Nederlands, pp.
251-264 (2003). - C. Zwingmann, T. Shokati, R. F.
Butterworth, D. Leibfritz.
Use of NMR spectroscopy for the study of ammonia metabolism in astrocytes and
neurons: Role of glutamine synthesis in astrocytes. Adv.
in Hepatic Encephalopathy and Nitrogen Metabolism. EA Jones, RAFM
Chamuleau and AJ Meijer, eds., Kluwer, Dordrecht, Nederlands, pp.
299-311 (2003). - C.
Zwingmann, N. Chatauret, D. Leibfritz, R.F. Butterworth.
Brain energy metabolism in acute liver failure: Studies using NMR spectroscopy. In:
Encephalopathy and Nitrogen Metabolism in Liver Failure. E.A Jones,
R.A.F.M Chamuleau, A.J. Meijer (eds.), Kluwer Dordrecht, Netherlands,
pp. 225-235 (2003). - C.
Zwingmann, N. Chatauret, D. Leibfritz, R.F. Butterworth.
Selective increase of brain lactate synthesis in experimental acute liver
failure: Results of a [1H-13C] NMR study. Hepatology 37, 420-428 (2003). (“Hepatology Highlights”: Hepatology 37,
492, 2003). - N.
Chatauret, C. Zwingmann, C. Rose, D. Leibfritz, R. F. Butterworth.
Protective effects of mild hypothermia on brain glucose metabolism in rats with
acute liver failure: A 1H/13C-NMR study. Gastroenterology 125, 815-824 (2003) and Editorial comment in Gastroenterology 125,
976-977 (2003). - D. Mayer, W. Dreher, D.
Leibfritz.
Fast U-FLARE based correlation-peak imaging with complete effective homonuclear
decoupling. Magn. Reson. Med. 49, 810-816 (2003). - C. Zwingmann, D. Leibfritz,
A. S. Hazell.
Energy metabolism in astrocytes and neurons treated with manganese: relationship
between cell-specific energy failure, glucose metabolism and intercellular
trafficking using multinuclear NMR-spectroscopic analysis. J. Cereb. Blood Flow Metab. 23,
756-771 (2003). - O.
Beckonert, J. Monnerjahn, U. Bonk, D. Leibfritz.
Visualizing metabolic changes
in breast-cancer tissue using 1H-NMR spectroscopy and self-organizing maps. NMR in Biomed. 16, 1-11 (2003). - C.
Meier, W. Dreher, D. Leibfritz.
Diffusion in compartmental
systems. II: Diffusion-weighted measurements of rat brain tissue in
vivo and postmortem at very large
b-values. Magn. Reson. Med. 50, 510-514 (2003). - C.
Meier, W. Dreher, D. Leibfritz.
Diffusion in compartmental
systems. I: A comparison of an analytical model with simulations. Magn. Reson. Med. 50, 500-509 (2003). - J.
Engelmann, G. Leyhausen, D. Leibfritz, W. Geurtsen.
Effect of TEGDMA on the
intracellular glutathione concentration of human gingival fibroblasts. J. Biomed Mater Res (Appl. Biomater) 63, 746-751 (2002). - N. Serkova, P. Donohoe, S. Gottschalk, C.
Hainz, C. U. Niemann Ph. E. Bickler, L. Litt, L. Z. Benet. D. Leibfritz, U. Christians.
Comparison of the effects of
cyclosporin A on the metabolism of perfused
rat brain slices during normoxia and
hypoxia. J. of Cerebral Blood Flow
& Metabolism 22, 342-352 (2002). - W. Dreher, D. Leibfritz.
Fast proton spectroscopic imaging with high signal-to-noise ratio: Spectroscopic RARE. Magn. Reson. Med. 47, 523-528 (2002). - K. Glunde, H. Düßmann,
H.-P. Juretschke, D. Leibfritz.
Na+/H+ exchange subtype 1 inhibition during extracellular
acidification and hypoxia in glioma cells. J. Neurochem. 80, 36-44 (2002). - C. Zwingmann, C.
Richter-Landsberg, D. Leibfritz.
13C
isotopomer analysis of glucose and alanine metabolism reveals cytosolic
pyruvate compartmentation as part of energy metabolism in astrocytes. Glia, 34, 200-212 (2001). - W. Dreher, E. Busch, D.
Leibfritz.
Changes in apparent diffusion coefficients of metabolites in rat brain after
middle cerebral artery occlusion measured by proton magnetic resonance
spectroscopy. Magn. Reson. Med., 45, 383-389
(2001). - N.
Serkova, W. Jacobsen, C. U. Niemann, L. Litt, L. Z. Benet, D. Leibfritz,U. Christians.
Sirolimus, but not the structurally related RAD (everolimus), enhances the negative
effects of cyclosporine on mitochondrial metabolism in the rat brain. Br. J. Pharmacol. 133 (6), 875-885
(2001). - D.
Leibfritz, W. Dreher.
Magnetization transfer MRS. NMR in Biomed., 14, 65-76 (2001). - J. Engelmann, G.
Leyhausen, D. Leibfritz, W. Geurtsen.
Metabolic effects of TEGDMA and HMBP in 3T3-fibroblast cultures detected by NMR spectroscopy. J. Dent. Reson. 80 (3), 869-875
(2001). - W.
Willker, D. Leibfritz.
Lipid
oxidation in blood plasma of patients with neurological disorders. Brain Res. Bull. 53 (4), 437-444 (2001). - C. Zwingmann, C.
Richter-Landsberg, A. Brand, D. Leibfritz.
Alanine as precursor of glutamate and GABA – A multinuclear NMR study. In:
Adv. in Hepatic Encephalopathy and Metabolism in Liver Disease (Eds.: C. Yurdaydin
and H. Bozkaya), 311-318, Ankara
University Press (2000). - C. Zwingmann, D. Leibfritz.
Lipid synthesis in glia cells during hyperammonemia studied by NMR
spectroscopy. In: Adv. in Hepatic Encephalopathy and Metabolism in Liver Disease (Eds.: C. Yurdaydin
and H. Bozkaya), 303-309, Ankara
University Press (2000). - D. Leibfritz, J. Pfeuffer, U. Flögel, Ch. Meier, St. Bröer.
Cell volume and water exchange in neural cells monitored by diffusion weighted 1H
NMR spectroscopy. In "Volume Transmission Revisted" (Eds.: Luigi Agnati, Kjell Fuxe,
Charles Nicholson, Eva Sykova), Progress in Brain Reson. Vol.125, 255-263 Elsevier 2000. - C. Zwingmann, Ch.
Richter-Landsberg, A. Brand, D. Leibfritz.
A NMR spectroscopic study on the metabolic fate of [3-13C]alanine
in primary astrocytes, neurons, and cocultures: Implications for glia-neuron
interactions in neurotransmitter metabolism. Glia 32, 286-303 (2000). - C.
Zwingmann, U. Flögel, J. Pfeuffer, D. Leibfritz.
Effects of ammonia exposition on glioma cells: changes in cell volume and
organic osmolytes studied by diffusion-weighted and high resolution NMR
spectroscopy. Dev. Neurosci. 22, 463-471 (2000). - D. Mayer, W. Dreher, D.
Leibfritz.
Fast echo planar based correlation-peak imaging: demonstration on the rat brain
in vivo. Magn. Reson. Med. 44, 23-28 (2000). - W. Dreher, D. Leibfritz.
A new method for fast proton spectroscopic imaging: spectroscopic GRASE. Magn. Reson. Med. 44, 668-72 (2000). - A. Ebel, W. Dreher, D.
Leibfritz.
A fast variant of 1H spectroscopic U-FLARE imaging using adjusted
chemical shift phase encoding. J. Magn. Reson.
142, 241-253 (2000). - N. Serkova, L. Litt, D. Leibfritz, B. Hausen, R. E. Morris, T.
L. James, L. Z. Benet, U. Christians.
The novel immunosuppressant SDZ-RAD protects rat brain slices from
cyclosporine-induced reduction of high-energy phosphates. Brit. J. Pharmacol.129, 485-492
(2000). - M. Barth, A. Metzler, M.
Klarhöfer, S. Röll, E. Moser, D. Leibfritz.
Functional MRI of the human motor cortex using single-shot, multiple
gradient-echo spiral imaging. Magn. Reson. Imag. 17, 1239-1243
(1999). - M.
Hentschel, W. Dreher, P. Wust, S. Röll, D. Leibfritz, R. Felix.
Fast spectroscopic imaging for non-invasive thermometry using the Pr[MOE-DO3A] complex. Phys. Med. Biol. 44, 2397-2408
(1999). - A. Brand, D. Leibfritz, Ch. Richter-Landsberg.
Oxidative stress-induced metabolic alterations in rat brain astrocytes studied
by multinuclear NMR spectroscopy. J. Neurosc. Reson. 58, 576-585
(1999). - J. Henke, J. Engelmann, B.
Kutscher, G. Nößner, J. Engel, R. Voegeli, D. Leibfritz.
Changes of intracellular calcium, fatty acids and phospholipids during
Miltefosine-induced apoptosis monitored by fluorescence- and 13C
NMR-spectroscopy. Anticancer Reson. 19, 4027-4032
(1999). - S. A. Roell, W. Dreher, D.
Leibfritz.
Combining cw- and pulsed saturation allows in
vivo quantitation of magnetization transfer observed for total creatine by 1H-NMR-spectroscopy
of rat brain. Magn. Reson. Med. 42, 222-227 (1999). - B. Kühn, W. Dreher, D.
Leibfritz, M. Heller.
Homonuclear uncoupled 1H-spectroscopy of the human brain using
weighted accumulation schemes. Magn. Reson. Imag. 17, 1193- 1201
(1999). - N.
Serkova, L. Litt, T. L. James, W. Sadee, D. Leibfritz, L. Z. Benet, U.
Christians.
Evaluation of individual and combined neurotoxicity of the immunosuppressants
cyclosporine and sirolimus by in-vitro multinuclear NMR spectroscopy. J. Pharmacol. Exp. Ther. 289,
800-806 (1999). - S. Verleysdonk, H. Martin,
W. Willker, D. Leibfritz, B. Hamprecht.
Rapid uptake and degradation of glycine by astroglial cells in culture;
synthesis and release of serine and lactate. Glia 27: 239-248 (1999). - W.
Dreher, D. Leibfritz.
Improved proton spectroscopic U-FLARE imaging for the detection of coupled
resonances in the rat brain in-vivo. Magn. Reson. Imag. 17, 611-621
(1999). - W. Dreher, D. Leibfritz.
Detection of homonuclear decoupled in
vivo proton NMR spectra using constant time chemical shift encoding:
CT-PRESS. Magn. Reson. Imag. 17, 141-150
(1999). - U. Flögel, D. Leibfritz.
Alterations in glial metabolism during recovery from chronic osmotic stress. Neur. Chem. Reson. 23, 1553-1561
(1998). - F. Podo, O. Henriksen, W.
M. M. J. Bovée, M. O. Leach., D. Leibfritz, J. D. de Certaines.
Absolute metabolite quantification by in
vivo NMR spectroscopy: I. introduction, objectives and activities of a
concerted action in biomedical research. Magn. Reson. Imag. 16, 9, 1085-1092 (1998). - J. Pfeuffer, S. Bröer, A.
Bröer, M. Lechte,U. Flögel, D. Leibfritz.
Expression of aquaporins in Xenopus
laevis oocytes and glial cells as detected by diffusion-weighted 1H
NMR spectroscopy and photometric swelling assay. BBA 1448, 27-36 (1998). - A. Brand, S. Gil, D.
Leibfritz, E. Yavin.
Direct administration and utilization of [1-13C]glucose by fetal brain and liver tissues under normal and ischemic
conditions: 1H, 31P, and 13C NMR studies. J. Neurosc. Reson. 54, 97-108 (1998). - C. Zwingmann, A. Brand, C.
Richter-Landsberg, D. Leibfritz.
Multinuclear NMR studies on NH4Cl-induced metabolic alterations and
detoxification processes in primary astrocytes and glioma cells. Dev. Neurosci. 20, 417-426 (1998). - W. Willker, D. Leibfritz.
Assignment of mono- and polyunsaturated fatty acids in lipids of tissues and
bodyfluids. Magn. Reson. Chem. 36, 579-584
(1998). - A.
Brand, D. Leibfritz, B. Hamprecht, R. Dringen.
Metabolism of cysteine in
astroglial cells: synthesis of hypotaurine and taurine. J. Neurochem. 71, 827-832 (1998). - J. Pfeuffer, W. Dreher, E.
Sykova, D. Leibfritz.
Water signal attenuation in diffusion-weighted 1H NMR experiments
during cerebral ischemia: influence of intracellular restrictions,
extracellular tortuosity, and exchange. Magn. Reson. Imag. 16 (9), 1023-1032
(1998). - W. Dreher, B. Kühn, M. L. Gyngell, E. Busch, T. Niendorf, K.-A.
Hossmann, D.
Leibfritz.
Temporal and regional changes during focal ischemia in rat brain studied by
proton spectroscopic imaging quantitative diffusion NMR imaging. Magn. Reson. Med. 39, 878-888 (1998). - A. Brand, C. Richter-Landsberg,
U. Flögel, W. Willker, D. Leibfritz.
Rat brain primary neurons immobilized in basement membrane gel threads: an
improved method for on-line 13C NMR spectroscopy of live cells. Brain Reson. Protoc. 3, 183-191
(1998). - J. Henke, J. Engelmann, U.
Flögel, J. Pfeuffer, B. Kutscher, G. Nößner, J. Engel, R. Voegeli, D. Leibfritz.
Apoptotic effects of hexadecylphosphocholine on resistant and nonresistant
cells monitored by NMR spectroscopy. Drugs of Today 34 (Suppl. F): 37-50
(1998). - R. Dringen, St.
Verleysdonk, B. Hamprecht, W. Willker, D. Leibfritz; A. Brand.
Metabolism of glycine in primary astroglial cells: synthesis of creatine,
serine and glutathione. J. Neurochem. 70, 835-840 (1998). - T.
Schäffter, P. Börnert, Ch. Leussler, I. C. Carlsen, D. Leibfritz.
Fast 1H
spectroscopic imaging using a multi-element head coil array. Magn. Reson. Med. 40, 185-193 (1998). - W. Willker, U. Flögel, D.
Leibfritz.
A 1H/13C inverse 2D method for the analysis of the
polyamines putrescine, spermidine and spermine in cell extracts and biofluids. NMR in Biomed.11, 47-54 (1998). - S.
A. Röll, W. Dreher, D. Leibfritz.
A general solution of the
standard magnetization transfer model. J. Magn. Reson. 132, 96-101 (1998). - S. A. Röll, W. Dreher, E.
Busch, D. Leibfritz.
Magnetization transfer attenuates
metabolite signals in tumorous and contralateral animal brain: In vivo observation by proton NMR
spectroscopy. Magn. Reson. Med. 39, 742-748 (1998). - J. Pfeuffer, U. Flögel, D.
Leibfritz.
Monitoring of cell volume and water exchange time in perfused cells by
diffusion weighted 1H-NMR spectroscopy. NMR in Biomed. 11, 11-18 (1998). - J. Pfeuffer, U. Flögel, W.
Dreher, D. Leibfritz.
Restricted diffusion and exchange of intracellular water: theoretical modelling
and diffusion time dependence of 1H-NMR measurements on perfused
glial cells. NMR in Biomed. 11, 19-31 (1998). - G. Kohn, U. Baulain, M. Henning, R. Lahucky, D. Leibfritz, E.
Kallweit.
In vivo and post mortem
Untersuchungen des Muskelstoffwechsels von Schweinen mit unterschiedlichem
MHS-Genotyp mit Hilfe der 31P-NMR-Spektroskopie. Arch. Tierz., Dummerstorf 41, 299-310 (1998). - J. Jankowski, H. Luftmann, M. Tepel, D. Leibfritz. W. Zidek, H. Schlüter.
Characterization of
dimethylguanosine, phenylethylamine, and phenylacetic acid as inhibitors of Ca2+
ATPase in end-stage renal failure. J. Am. Soc. Nephrol. 9, 1249-1257
(1998). - V. Lombardi, L. Valko, A.
Scozzafava, M. Melnik, J. Svitel, M. Budesinský, J. Pelnár, J. Steno, T.
Liptaj, L. Zalibera, J. Budinská, J. Zlatos, A. Giuliani, L. Mascolo, D.
Leibfritz.
1H NMR ganglioside ceramide resonance region on the differential
diagnosis of low and high malignancy of brain gliomas.. Cell. Mol. Neurobiol. 17, 521-535
(1997). - N. Serkova, U. Christians,
U. Flögel, J. Pfeuffer, D. Leibfritz.
Assessment of the mechanism of astrocyte swelling induced by the macrolide immunosuppressant sirolimus using
multinuclear nuclear magnetic resonance spectroscopy. Chem. Reson. Toxicol. 10, 1359-1363
(1997). - U.
Flögel, W. Willker, J. Pfeuffer, D. Leibfritz.
Regulation of glial lipid
metabolism during osmotic stress studied by 13C-NMR
spectroscopy. Neurochem. 95, 571-575, (Teelken and Korf, ed.),
Plenum Press, New York
(1997). - W.
Willker, U. Flögel, D. Leibfritz.
Ultra-high-resolved HSQC
spectra of multiple-13C-labeled biofluids. J. Magn. Reson. 125, 216-219 (1997). - A. Brand, Ch.
Richter-Landsberg, D. Leibfritz.
Metabolism of acetate in rat brain neurons, astrocytes and cocultures between
neurons and glial cells monitored by NMR spectroscopy. Cell. and Mol. Biol. 43, 645-657
(1997). - J. Benters, U. Flögel, T.
Schäfer, D. Leibfritz, S. Hechtenberg, D. Beyersmann.
Study of the interactions of cadmium and zinc ions with cellular calcium
homeostasis using 19F-NMR spectroscopy. Biochem. J. 322, 793-793 (1997). - T. Derr, Th. Els, M.
Gyngell, D. Leibfritz.
Characterization of tumorous tissue in rat brain by in vitro magnetic resonance spectroscopy and artificial neural
networks. In: Lecture Notes in Artificial Intelligence 1211, Artificial Intelligence in Medicine (E. Keravnou, C. Garbay,
R. Baud, J. Wyatt, Eds.) 457-460, Springer Verlag Berlin, ISBN 3-540-62709-X
(1997). - U. Flögel,, W. Willker, D.
Leibfritz.
Determination of de novo synthesized
amino acids in cellular proteins revisited by 13C NMR spectrosopy. NMR in Biomed. 10, 50-58 (1997). - A. Brand, D. Leibfritz, H. Wollburg, Ch. Richter-Landsberg.
Interactions of Triethyltin-Chloride (TET) with the energy metabolism of
cultured rat brain astrocytes: studies by multinuclear magnetic resonance
spectroscopy. Neurochem. Reson.
22, 123-131 (1997). - R. M Dijkhuizen, M. van Lookeren Campagne,
T. Niendorf, W. Dreher, A.
van der Toorn, M. Hoehn-Berlage, H. B. Verheul, C. A. F. Tulleken, D.
Leibfritz, K.-A. Hossmann and K. Nicolay.
Status of the neonatal rat brain after NMDA-induced excitotoxic injury as
measured by MRI, MRS and metabolic imaging. NMR in Biomed. 9, 84-92
(1996). - J.
Stelten, D. Leibfritz.
Clean HX and H2X
proton selection using gradients: gs-Hn-X-HYSEL. Magn. Reson. Chem. 34, 951-954 (1996). - D.
Leibfritz.
An
introduction to the potential of 1H-, 31P- and 13C-NMR-spectroscopy. Anticancer Reson. 16, 1317-1324 (1996). - W. Willker, U. Flögel, D.
Leibfritz.
2D H,C-NMR methods for the analysis of multiple 13C-labelled glucose
metabolites in brain cell cultures. J. Magn. Reson. Anal. 2, 88-94
(1996). - N. Serkowa, A. Brand, U.
Christians, D. Leibfritz.
Evaluation on the effects of the immunosuppressants cyclosporine and tacrolimus
on neuronal and glial cells in vitro by multinuclear NMR
spectroscopy. BBA 1314, 93-104 (1996). - J. Henke, W. Willker, J.
Engelmann, D. Leibfritz.
Combined extraction techniques of tumour cells and lipid/phospholipid
assignment by two dimensional NMR spectroscopy. Anticancer Reson. 16, 1417-1428
(1996). - J. Engelmann, J. Henke, W.
Willker, B. Kutscher, G. Nößner, D. Leibfritz.
Early stage monitoring of miltefosine induced apoptosis in KB cells by
multinuclear NMR spectroscopy. Anticancer Reson. 16, 1429-1440
(1996). - P.
M. Alves, U. Flögel, A. Brand, D. Leibfritz, M. J. T. Carrondo, U. Sonnewald, H.
Santos.
Immobilization of primary astrocytes and neurons for NMR monitoring of
biochemical processes in vivo. Dev. Neurosci. 18, 460-465 (1996). - U. Flögel, W. Willker, J.
Engelmann, T. Niendorf, D. Leibfritz.
Adaptation of glial metabolism to anisotonic conditions, as assessed by 13C-NMR spectroscopy. Dev. Neurosci. 18, 449-459 (1996). - B. Kühn, W. Dreher, D.
Norris, D. Leibfritz.
Fast proton spectroscopic imaging using k-space weighting by variable
repetition times. Magn. Reson. Med. 35, 457-464 (1996). - W. Willker, J. Engelmann, A.
Brand, D. Leibfritz.
Metabolite identification in cell extracts and culture media by proton-detected 2D-H,C-NMR-spectroscopy. J. Magn. Reson. Anal. 2, 21-32 (1996). - D.
Leibfritz, R. Altenburger.
Cell suspensions. Enzyclopedia of Nuclear
Magnetic Resonance Spectroscopy.Vol. 2, 1197-1209, Wiley, Chichester,
England (1996). - J.
Stelten, D. Leibfritz.
Highly selective
1D-C,H-correlations. Magn. Reson. Chem. 33, 827-830 (1995). - R. Altenburger, R.
Callies, L. H. Grimme, D. Leibfritz, A. Mayer.
The mode of action of glufosinate in algae: uptake and nitrogen assimilation
pathways as modifying factors? Pestic. Sci. 45, 305-310 (1995). - W.
Dreher, D. Leibfritz.
On the use of 2D-J NMR
measurements for in vivo proton MRS.
Measurement of homonuclear
decoupled spectra without the need for short echo times. Magn. Reson. Med. 34, 331-337 (1995). - W. Willker, D. Leibfritz.
The determination of heteronuclear long-range H,X-coupling constants from
gradient-selected HMBC-spectra. Magn. Reson. Chem. 33, 632-638
(1995). - W.
Willker, J. Engelmann, A. Brand, D. Leibfritz.
Identification of
pyro-glutamate and glucosyl-aminoacids in cell culture media. J. Magn. Reson. Anal. 1, 20-24 (1995). - U. Flögel, T. Niendorf, N.
Serkova, A. Brand, D. Leibfritz.
Changes in organic solutes, volume, energy state and metabolism associated
with osmotic stress in a glial cell
line: A multinuclear NMR study. Neurochem. Reson. 20, 793-802 (1995). - T.
Reese, D. G. Norris, D. Leibfritz.
A fast method for in vivo lactate imaging. NMR in Biomed. 8, 225-231 (1995). - W.
Dreher, D. Leibfritz.
Parametric
multiecho proton spectroscopic imaging.Application to the Rat Brain in-vivo. Magn. Reson. Imag. 13, 753-761
(1995). - M. Hoehn-Berlage, D. G.
Norris, K. Kohno, G. Mies, D. Leibfritz, K. A. Hossmann.
Evolution of regional changes in apparent diffusion coefficient during focal
ischemia of rat brain: The relationship of quantitative diffusion NMR imaging
to reduction in cerebral blood flow and metabolic disturbances. J. Cereb. Blood Flow Metab. 15,
1002-1011 (1995). - F. Podo, W. M. M. J.
Bovée, J. de Certaines, D. Leibfritz, J. S. Orr.
Quality assessment in in vivo NMR
spectroscopy: I. Introduction, objectives, and activities. Magn. Reson.
Imag. 13, 117-121 (1994). - W. Willker, D. Leibfritz.
Gradientenselektion von
Kohärenzen in Heteronuklearen Experimenten. GIT Fachz. Lab. 38, 357-360 (1994). - D. Leibfritz, A. Brand, C.
Richter-Landsberg, U. Flögel, T. Niendorf.
On
line monitoring of cell volume and osmolyte concentrations in glial and
neuronal cells after osmotic stress by NMR spectroscopy. MAGMA 2, 58 (1994). - A. Brand, C. Richter-Landsberg,
D. Leibfritz.
Specific differences in metabolism of glial and neuronal cells demonstrated by
H-1, C-13 and P-31 NMR spectroscopy. J. Brain Reson. 35, 132-133 (1994). - D.
G. Norris, E. J. Schneider, J. J. Grome, D. Leibfritz.
Volume and contrast
development in the rose bengal model of cerebral infarction. Magma 2, 531-538 (1994). - W.
Willker, D. Leibfritz.
Gradient selection of
coherences in experiments with carbon detection. Magn. Reson. Chem. 32, 665-669 (1994). - T.
Niendorf, D. G. Norris, D. Leibfritz.
Detection of apparent
restricted diffusion in healthy rat brain at short diffusion times. Magn. Reson. Med. 32, 672-677 (1994). - D. G. Norris, T. Niendorf,
D. Leibfritz.
Healthy and infarcted brain tissues studied at short diffusion times: the
origins of apparent restriction and the reduction in apparent diffusion
coefficient. NMR Biomed. 7, 304-310 (1994). - D.
Leibfritz.
Biochemical aspects in MRS. Eurospin Ann, 1994, 51-66. - H.
M. Sonawat, S. Yamamoto, D. Leibfritz.
P-31 NMR studies on perfused
liver from mouse with chronic ethanol ingestion. Zeitschr. f. Naturforschg. 49c, 147-153 (1994). - D. G. Norris, T. Niendorf, M. Hoehn-Berlage, K. Kohno, E. J. Schneider,
P. Hainz, M.
Hropot, D. Leibfritz.
The incidence of apparent restricted diffusion investigated in three different
infarct models. Magn. Reson. Imag. 12, 1175-1182
(1994). - W.
Willker, D. Leibfritz.
A selective JHH-TOCSY
version for measuring 3JHH coupling constants. J.
Magn. Reson. Ser. A, 110, 95-97 (1994). - W.
Dreher, D. Leibfritz.
Double-echo multi-slice proton
spectroscopic imaging using Hadamard slice encoding. Magn. Reson. Med. 31, 596-600 (1994). - U. Flögel, W. Willker, D.
Leibfritz.
Regulation of intracellular pH in neuronal and glial cells, studied by
multinuclear NMR spectroscopy. NMR in Biomed., 7, 157-166 (1994). - W. Dreher, D.G. Norris, D.
Leibfritz.
Magnetization transfer affects the proton creatine/phosphocreatine signal
intensity. In vitro
demonstration in the rat brain. Magn. Reson. Med. 31, 81-84 (1994). - W.
Willker, J. Stelten, D. Leibfritz.
A highly selective
proton-detected 1D-H,X-correlation. J. Magn. Reson. 107A, 94-98 (1994). - A.
Brand, C. Richter-Landsberg, D. Leibfritz.
Multinuclear NMR studies on
the energy metabolism of glial and neuronal cells. Developmental Neuroscience 15, 289-298 (1993). - S. Arbazua, R. Altenburger, R. Callies, L.H. Grimme, A. Mayer, D.
Leibfritz, U.
Schiewer.
Ammonium rythm in cultures of
the cyanobacterium Mycrocystis firma. Physiol. Plant. 89, 659-663 (1993). - D.G.
Norris, M. Hoehn-Berlage, F. Wittlich, D. Leibfritz.
Dynamic imaging with T2*
contrast using U-FLARE. Magn. Reson. Imag. 11, 921-924 (1993). - F. Koschoreck, W. Offermann, J. Stelten, W. Braunsdorf, U. Steller, H.
Gremmel, D.
Leibfritz.
High resolution 1H
NMR spectroscopy of cerebrospinal fluid in spinal diseases. Neurosurg. Rev. 16, 307-315 (1993). - U.
Flögel, D. Leibfritz.
Response
of 3T3 cells on stimulation of adenylate cyclase by forskolin studied by
multinuclear NMR spectroscopy. Biol. Chemistry Hoppe Seyler 374,
211-216 (1993). - F. Podo, J.S. Orr,
W.M.M.J. Bovée, J.D. de Certaines, D. Leibfritz.
Tissue characterization by magnetic resonance spectroscopy and imaging: results
of a concerted research project of the European Economic
Community. Magn. Reson. Imag. 11 (6), 809-815
(1993). - W.
Willker, D. Leibfritz, R. Kerssebaum, W. Bermel.
Gradient Selection in Inverse
Heteronuclear Correlation Spectroscopy. Magn. Reson. Chem. 31, 287-292 (1993). - S. Hentrich, M. Hebeler,
L.H. Grimme, D. Leibfritz, A. Mayer.
P-31 NMR saturation transfer experiments in Chlamydomonas reinhardtii: Evidence
for the NMR visibility of chloroplastidic Pi. Eur. Biophys. J.
22, 31-39 (1993). - H. Koch, I. Okyayuz-Baklouti, D. Norris, H.
Kogler, D. Leibfritz.
Correlation
of function and energy metabolism in rat ischaemic skeletal muscle by P-31 NMR spectroscopy. Effects of torbafylline. Journ.
of Medicine 24, 47-66 (1993). - W.
Willker, D. Leibfritz.
Gradient selected E.COSY. J. Magn. Reson., 102A, 348-350 (1993). - U. Wollborn, W. Willker,
D. Leibfritz.
Heteronuclear long-range coupling constants from inverse 2D NMR spectra
dispersed by the heteronuclear chemical
shift. J. Magn. Reson. 103 A, 86-89 (1993). - H. Assadnazari, G. Zimmer,
H.J. Freisleben, W. Werk, D. Leibfritz.
Cardioprotective efficiency of dihydrolipoic acid in working rat hearts during
hypoxia and reoxygenation: P-31
investigations. Arzneimittelforschg./Drug Reson. 43,
425-432 (1993). - W. Willker, U. Wollborn,
D. Leibfritz.
Exact measurement of 3JCH-coupling constants using proton
detected editing- and selection-sequences. J. Magn. Reson. B 101, 83-86 (1993). - A. Brand, Ch.
Richter-Landsberg, D. Leibfritz.
C-13 and H-1 NMR studies of brain tumor cells. in NMR in nephro-urology. (S.
Pomer, W.E. Hull Eds.), Springer Berlin,
25-33 (1993). - U. Wollborn, R.M. Brunne,
D. Leibfritz, J. Harting, G. Hölzemann.
Comparative conformational analysis and in
vitro pharmacological evaluation of three
cyclic hexapeptide NK-2 antagonists. Int. Journ.
Pept. Prot. 41, 376-384 (1993). - P. Börnert, D.G. Norris, H. Koch, W.
Dreher, H. Reichelt, D. Leibfritz.
Fast
perfluorocarbon imaging using 19F-U-FLARE. Magn. Reson. Med. 29, 226-234 (1993). - M. Hebeler, S. Hentrich, A.
Mayer, D. Leibfritz, L.H. Grimme.
Phosphate regulation and compartmentation in Chlamydomonas reinhardtii studied
by in vivo P-31-NMR. Ed. N. Marata, Proc. IX. Int. Congress on Photosynthesis, Kluwer Academic
Publ., Dordrecht, Netherland Research in Photosynthesis Vol. 3, 717-720 (1992). - D.
Stryjewski, D. Leibfritz.
Modern methods of
NMR-spectroscopy of biological samples. Physica Medica 8 (Suppl. 1), 15-22 (1992). - A. Brand, J. Engelmann, D.
Leibfritz
A C-13 NMR study on fluxes into the TCA cycle of neuronal and glial tumor cell
lines and primary cells. Biochimie 74, 941-948 (1992). - A. Brand, C.
Richter-Landsberg, D. Leibfritz.
Multinuclear NMR studies on the metabolism of neuronal and glial tumor cell
lines and primary cells. Physica Medica 8 (Suppl. 1), 23-30
(1992). - L. Walter, R. Altenburger,
R. Callies, L.H. Grimme, D. Leibfritz, A. Mayer.
In-vivo NMR spectroscopy: in-situ 15N pulse labelling NMR
spectroscopy with photoautotrophic
microorganisms. Isotopenpraxis 28, 73-80 (1992). - R.
Callies, R. Altenburger, S. Abarzua, A. Mayer, L.H. Grimme, D. Leibfritz.
In-situ NMR of N-15 pulse
labels monitor different routes for nitrogen assimilation. Plant Physiol. 100, 1584-1586 (1992). - W.
Willker, D. Leibfritz.
Complete assignment and conformational
studies of tomatine and tomatidine. Magn. Reson. Chem., 30, 645-650 (1992). - R. Brunne, D. Leibfritz.
Sampling of conformational regions of Boc-Ala-Aib-Ala-OMe with molecular
dynamics simulations using time
averaging of distance restraints. Int. Journ. Pept. Prot. 40, 401-406
(1992). - W.
Willker, D. Leibfritz.
Accurate measurement of
homonuclear coupling constants using JHH-TOCSY. J. Magn. Reson. 99, 421-425 (1992). - W. Huesemann, R. Callies,
D. Leibfritz.
External pH-variations modify the intracellular pH and the mode of
photosynthetic CO2 assimilation in photoautotrophic cell suspension
cultures of Chenopodium rubrum. Bot. Acta 105, 116-120 (1992). - W. Dreher, P. Börnert, D.
Leibfritz.
Signal dependent preprocessing of NMR data using the constrained least square
method. J. Magn. Reson.
97, 376-381 (1992). - W. Offermann, E. Fiedler, C. Helmle, W.
Hofer, H. Kugel, T. Reese, W. Werk, D.
Leibfritz.
On-line monitoring of the Krebs cycle in isolated heart mitochondria by 13C
NMR spectroscopy. Magn.
Reson. Chem., 30, 347-358 (1992). - D.
Norris, P. Börnert, T. Reese, D. Leibfritz.
On the application of
ultra-fast RARE experiments. Magn.
Reson. Med. 27, 142-164 (1992). - J.
Stelten, D. Leibfritz.
H-1-detected HnX-selection
via multiple quantum coherence of natural abundance. J. Magn. Reson. 99,
170-177 (1992). - U. Wollborn, D. Leibfritz.
Measurements of heteronuclear long-range coupling constants from inverse homonuclear
2D-NMR-spectra. J. Magn. Reson. 98, 142-146 (1992). - D.
Leibfritz.
Water suppression in magnetic resonance spectroscopy in biology and medicine.
Functional and Pathological Tissue Characterization. (J.D. de Certaines,
W.M.M.J. Bovée, F. Podo, Eds.), Pergamon Press, London, 149-165 (1992). - M. Hoehn-Berlage, D.
Norris, K. Bockhorst, R.-I. Ernestus, O. Kloiber, P. Bonnekoh, D.
Leibfritz, K.A. Hossmann.
T1 snapshot FLASH measurement of rat brain glioma: Kinetics of the
tumor-specific contrast agent manganese (III) tetra-phenylporphine sulfonate. Magn. Reson.
Med. 27, 201-213 (1992). - D. Leibfritz, W. Offermann, J. Stelten, F.
Koschorek, A.W.H. Jans, W. Kuhn, S. Soboll.
In-vitro- und in-vivo-NMR-Spektroskopie. Nova
Acta Leopoldina NF 60, Nr. 266,
57-69 (1992). - U. Wollborn, D. Leibfritz.
Untersuchung des stereochemischen Einflusses der Substitution in 3-Stellung an
Cholsäurederivaten mit Hilfe von 1D- und 2D-NMR-Methoden. Liebigs Ann. Chemie 1991, 1237-1239 (1991). - U. Wollborn, D. Leibfritz, T. Domke.
Editing
and suppression of geminal proton-proton-correlations in TOCSY
spectra. J. Magn.
Reson. 94,
653-658 (1991). - D. Leibfritz.
Medizinische Anwendungen der
NMR-Spektroskopie. Biomed.
Techn. 35, 50-60 (1991). - R. Altenburger, S.
Abarzua, R. Callies, L. H. Grimme, A. Mayer, D. Leibfritz.
Amonia rhythm in microcystis firma studied by in vivo N-15 and P-31 NMR spectroscopy. Arch. Microbiol. 156, 471-476 (1991). - P. Schmieder, T. Domke, D.
G. Norris, M. Kurz, H. Kessler, D. Leibfritz.
Editing of multiplicity in two- and threedimensional heteronuclear
NMR-spectroscopy by Fourier transform of the pulse angle dependency. J. Magn. Reson. 93, 430-435 (1991). - U.
Wollborn, D. Leibfritz.
Inverse
editing of protons in two-dimensional homonuclear and heteronuclear relayed
COSY spectra. Magn. Reson. Chem. 29, 238-243
(1991). - D.
G. Norris, H. Lüdemann, D. Leibfritz.
An analysis of the effects of
short T2's on the hyperbolic-secant pulse. J. Magn. Reson. 92, 94-101 (1991). - R.
Altenburger, R. Callies, S. Abarzua, L.H. Grimme, A. Mayer, D. Leibfritz.
In-vivo-15N-NMR: A
tool for studying of ammonia assimilation. Pure and Appl. Chem. 2, 325 (1990). - M. Knaack, D. Leibfritz.
Solid-phase synthesis and first comparative conformational analysis of the
renin inhibitor H-142 and its decapeptide analogue by NMR spectroscopy. Peptides 1990, 521-523. - U.
Böttcher, D. G. Norris, D. Leibfritz.
Sequential inversion recovery
snapshot-FLASH. Magn. Reson. Imag. 8, 16 (1990). - D. Stryjewski, D.
Leibfritz.
Improved metabolite editing by the 1D-soft COSY technique with 270°
Gaussian shaped pulses. Magn. Reson. Med. 15, 340-345 (1990). - R.
Callies, R. Altenburger, A. Mayer, L.H. Grimme, D. Leibfritz.
A
new illumination system for in vivo
NMR spectroscopy. J. Magn. Reson. 90, 561-566 (1990). - U. Wollborn, T. Domke, D. Leibfritz.
Inverse
proton editing in 1D- and 2D-spectra by a combination of the SHIPPED and COSY
techniques. J. Magn. Reson. 90, 575-579
(1990). - D.
G. Norris, U. Böttcher, D. Leibfritz.
A
simple method of generating variable T1 contrast images using
temporally reordered phase-encoding. Magn. Reson. Med. 15, 483-490
(1990). - T.
Domke, D. Leibfritz.
Reverse editing of protons according to multiplicity (REPAY). J. Magn. Reson. 88, 401-405 (1990). - H. Kugel, A. Mayer, G.O. Kirst, D.
Leibfritz.
The
energy requirements of pH homeostasis define the limits of pH regulation - a
model. Biochimica
et Biophysica Acta 1054, 33-40
(1990). - A.C.
Kuesel, J. Sianoudis, D. Leibfritz, L.H. Grimme, A. Mayer.
The
dependence of cytoplasmic pH in respiring and fermenting cells of the green
algae chlorella fusca and chlorella vulgaris on the pH of the medium as
determined by P-31 in-vivo NMR spectroscopy. Arch. Microbiol. 153, 254-258 (1990). - H. Sonawat, D. Leibfritz, J. Engel, P.
Hilgard.
Biotransformation
of mafosfamide in P 388 mice leukemia cells: Intracellular P-31 studies. BBA
1052, 36-41 (1990). - T.
Domke, D. Leibfritz.
Shipped-selective
heteronuclear inverse polarization tansfer proton editing. J. Magn. Reson. 86, 180-187 (1990). - A. Haase, D. Norris, D. Leibfritz, D.
Matthaei.
Schnelle Protonen-MR-Bildgebung
(SNAPSHOT-FLASH-MRI). in: MR'90 3. Int. Kernspintomographie Symposium,
Garmisch-Partenkirchen 1989 (J. Lissner, J.L. Doppmann, A.R. Magulis Eds.)
Deutscher Ärzte Verlag Köln, S. 256-258 (1990). - D. Stryjewski, H. Oschkinat, D. Leibfritz.
Detection
of metabolites in body fluids and biological tissue by a 1-D soft COSY technique. Magn.
Reson. Med. 13, 158-161 (1990). - D.
Stryjewski, H. Oschkinat, D. Leibfritz.
A
specific metabolite editing technique in H-1 NMR spectra by a soft COSY
technique in body fluids and tissue. In:
J.D. Certaines, Magnetic Resonance Spectroscopy of Biofluids, p.75, World Scientific Publ., London
(1989). - D. Leibfritz, J. Stelten, W. Offermann, O.
Sezer, H. Rasche.
H-1
NMR spectroscopy of blood plasma: An efficient method for detection of cancer? In:
J.D. Certaines, Magnetic Resonance Spectroscopy of Biofluids, p. 155,
World Scientific Publ., London (1989). - D. Leibfritz, F. Koschorek, J. Stelten,
W. Offermann.
CSF:
Detection of tumors and disk herniations with MRS. In: J.D. Certaines, Magnetic
Resonance Spectroscopy of Biofluids, p. 167, World Scientific Publ., London (1989). - A. Haase, D. Matthaei, R. Bartkowski, E.
Dühmke, D. Leibfritz.
Inversion recovery snapshot
FLASH MRI. Fast dynamic T1 contrast. J.
Comp. Ass. Tomogr.
13, 1036-1040 (1989). - J.H. Langkowski, J. Wieland, H. Bomsdorf,
D. Leibfritz, W. Offermann, R. Maas.
Pre-operative
localized in-vivo proton spectroscopy in cerebral tumors at 4.0 Tesla. First results. Magn.
Reson. Imag. 7, 547-555 (1989). - W.
Offermann, D. Leibfritz.
NMR
spectroscopy of body fluids in medical diagnosis. In: E. Kallweit, M.
Henning, E. Groeneveld (Eds.)
Application of NMR Techniques on the Body Composition of Live Animals , S. 53-58; Elsevier Applied
Science, London
(1989). - D. Leibfritz, R. Brunne, T. Weihrauch, J.
Stelten, E. T. K. Haupt, W. D. Stohrer.
NMR-spectroscopic
assignment of the Aib-methyl groups in a-helix and ß-turn environment with the use selectively deuterated Aib.
The solution conformations of Boc-Ala-Aib-Ala-OMe. Liebigs
Ann. Chem. 1989, 1017-1027. - F. Koschorek, H. Gremmel, J. Stelten, T.
Reese, W. Offermann, E. Krüger, D.
Leibfritz.
Characterization
of CNS lesions by using high-resolution 1H
MR spectroscopy of CSF: Preliminary results. Am. J. Neurorad. 10, 523-527
(1989). - A. C. Kuesel, J. Sianoudis, D. Leibfritz,
L. H. Grimme, A. Mayer.
P-31
in-vivo-NMR investigations on the function of polyphosphates of the green
alga chlorella fusca. Archiv Microbiol. 152, 167-171 (1989). - A. C. Kuesel, W. Kuhn, J. Sianoudis, L.
H. Grimme, A. Mayer, D. Leibfritz.
N-15
in-vivo-NMR spectroscopic investigations of nitrogendeprived all suspensions of
the green alga chlorella fusca. Archiv
Microbiol. 151, 434-438 (1989). - R. M. Brunne, D. Leibfritz, E. T. K.
Haupt.
Chiral
-a-aminoisobutyric
acid as a probe for the secundary structure of peptides. Peptides
1988 - Proceedings of the 20th
Eur.Pept.Symp. Walter de Gruyter,
Berlin, 459-461 (1989). - A. W. H. Jans, D. Leibfritz.
A 13C
NMR study on fluxes into the Krebs cycle of rabbit renal proximal tubular
cells. NMR in Biomedicine 1, 171-176 (1989). - D. Leibfritz.
Nichtinvasive Untersuchungen des Zellmetabolismus mit der magnetischen
Kernresonanz (NMR). Schriftenreihe d. Wittheit zu Bremen, Bd. 11,
64-68, Verlag J. H. Döll, Bremen (1988). - O. Sezer, H. Rasche, J. Stelten, D.
Leibfritz.
Magnetische Kernspinresonanz von
Plasma. Deut. Med. Wochenschr. 113, 705 (1988). - C. Kasperk, R. Ewers, D. Leibfritz.
Verlaufskontrollen der Knochenheilung mittels
MR-Tomographie und MR-Spektroskopie. Acta
Medica Austriaca 15, Suppl. 38, 24
(1988). - H. Gimmler, H. Kugel, D. Leibfritz, A.
Mayer.
Cytoplasmic
pH of dunaliella parva and dunaliella acidophila as monitored by in vivo P-31
NMR spectroscopy and the DMO method. Physiologia Plantarum 74, 521 (1988). - A. Haase, D. Leibfritz, W. Werk.
P-31
FLASH NMR Imaging. Magn.
Reson. Med. 7, 358-363 (1988). - E. T. K. Haupt, D. Leibfritz.
C-13
and N-15 chemical shifts of alkylsubstituted benzonitrils. Spectrochimica Acta 45A, 119-121 (1988). - D. Leibfritz.
Grundlagen der
Kernspinresonanzspektroskopie. Schriftenreihe d. Wittheit zu Bremen, Bd. 11,
105-109, Verlag J. H. Döll, Bremen (1988). - D.G. Norris, N. Schuff, D. Leibfritz.
INEPT
enhanced C-13 NMR spectroscopy using double tuned surface coils. J. Magn. Reson. 78, 362-366 (1988). - O. Sezer, J. Stelten, H. Rasche, D.
Leibfritz.
The
Fossel Test (NMR spectroscopy of plasma): An efficient method for detecting
cancer? In: Diagnostische und therapeutische
Entwicklungen in der Hämatologie und Onkologie (K. Wilms, H. Rückle, P. Meyer,
Edit.) S. 377-383, W. Zuckschwerdt Verlag, München (1988). - F. Koschorek, H. Gremmel, J. Stelten, W.
Offermann, D. Leibfritz.
High
resolution H-1-NMR-spectroscopy for human CSF: Preliminary results and
considerations. Radiology
167, 813-816 (1988). - A.
W. H. Jans, D. Leibfritz.
A
C-13 NMR study on the influxes into TCA cycle of renal epithelial cell line:
LLC-PK1/Cl4. The metabolism of (2-C-13)-glycine, (2-C-13)- and
(3-C-13)-L-alanine and (3-C-13)-L-aspartic acid. Biochimica Biophysica Acta 970, 241-250 (1988). - F. Koschorek, H. Gremmel, J. Stelten, W.
Offermann, D. Leibfritz.
An
aid in further characterizing CNS lesions: High resolution H-1 NMRT
spectroscopy for human cerebrospinal fluid. First results. Computer
Aided Radiology, 221-225 (1987). - H.
Kugel, A. Mayer, G.O. Kirst, D. Leibfritz.
In-vivo
P-31 NMR measurements of phosphate metabolism in platymonas subcordiformis as
related to external pH. Eur. J. Biochem. 14, 461 (1987). - U. Pilatus, A. Mayer, W. Offermann, D.
Leibfritz.
Sodium
binding to and protonation of ATP. A multinuclear magnetic double resonance
study at 8.46 Tesla. Biochimica Biophysica Acta 926, 106-113 (1987). - C. Kasperk, D. Leibfritz, R. Ewers.
Verlaufskontrolle der Knochenheilung
mittels MR-Spektroskopie. Fortschr. der Kiefer-Gesichts-Chir. 31, 108-109 (1987). - W. Offermann, W. Kuhn, S. Soboll, T.
Ishikawa, D. Leibfritz.
The
in-vivo contour plot. An improved representation of stimulus experiments. Magn.
Reson. Med. 4, 507-516 (1987). - J.
Sianoudis, A. C. Küsel, A. Mayer, L. H. Grimme, D. Leibfritz.
The
cytoplasmic pH in photosynthesizing cells of the green alga chlorella fusca,
measured by P-31-NMR spectroscopy. Arch. Microbiol. 147, 25 (1987). - D. Leibfritz.
P-31-NMR-Spektroskopie an Zellen, Organen und Organismen. in:
Kernresonanzspektroskopie - Stand und Perspektiven der
in-vivo-NMR-Spektroskopie in der medizinischen Diagnostik. (H. Rüterjans, Ed.)
p. 135-192 Schriftenreihe zum Programm der Bundesregierung Forschung und
Entwicklung im Dienste der Gesundheit, Bonn (1987). - J. Sianoudis, A. C. Küsel, D. Leibfritz,
L. H. Grimme, A. Mayer.
The
cytoplasmic pH of the green alga chlorella fusca, measured by P-31 NMR
spectroscopy. In: G. Marst, J. Kiepenheuer, N. Boccara (Eds.): Biophysical
effects of steady magnetic fields, S. 221-225, Springer-Verlag Berlin
(1986). - W. Kuhn, W. Offermann, D. Leibfritz.
Influence
of stray radiation upon T1 in 'in-vivo'-saturation transfer. J. Magn. Reson., 68, 193-197
(1986). - J.
Sianoudis, A. C. Küsel, A. Mayer, L. H. Grimme, D. Leibfritz.
Distribution
of polyphosphates in cell-compartments of chlorella fusca as measured by
P-31-NMR-spektroscopy. Arch. Microbiology, 144, 48 (1986). - W. Offermann, W. Kuhn, J. Stelten, D.
Leibfritz.
Automated
structure elucidation. 1. stereostructure of a synthetic cannabinoid. Tetrahedron, 42, 2215-2220 (1986). - G. Jung, K. H. Wiesmüller, J. Metzger, A. Lex, W. Bessler, D.
Leibfritz, W. Praß, H.
Ringsdorf.
The
N-terminus of e. coli lipoprotein: Synthesis, immunogenicity, spectroscopy and
monolayer forming properties of a potent mitogen. In: Forum Peptides, B. Castro, J. Martinez (Eds.), Centre de
Pharmacology/Endocrinology; Les Impression Dohr, Montpellier, p. 213 (1986). - G. Jung, K. H. Wiesmüller, W. Scheurer, W. G. Bessler, D. Leibfritz, W.
Praß, H.
Ringsdorf.
B-lymphocyte
mitogenicity and biophysical properties of synthetic N-terminal lipopeptides of
e. coli lipoprotein. SCLAVO, Int. Conference of Synthetic Antigens, p.58. - J. Sianoudis, T. Naujokat, W. Offermann,
A. Mayer, L. H. Grimme, D. Leibfritz.
Respirational
activity of chlorella fusca monitored by in-vivo-P-31 NMR. Eur. Biophysics Journ. 13, 89-97 (1985). - Th. Weihrauch, D. Leibfritz.
Darstellung chrialer a-Aminoisobuttersäure. Liebigs Ann. Chem., 1917-1921 (1985). - J. Sianoudis, T. Naujokat, A. Mayer, L.
H. Grimme, D. Leibfritz.
P-31-NMR-studies
of phosphate metabolism of the green alga chlorella fusca. In:
Magnetic Resonance in Biology and Medicine (Eds.: G. Govil, C.L.
Khetrapal, A. Saran) McGraw Hill,
429-438 (1985). - D. Leibfritz, W. Offermann, W. Kuhn, T.
Ishikawa, K. U. Wolf, J. Becker.
P-31-NMR-studies
on perfused rat organs (heart, diaphragm, gaster) and on human erythrocytes. In: Magnetic Resonance in Biology and
Medicine (Eds.: G. Govil, C.L. Khetrapal, A. Saran) McGraw Hill, 417-427 (1985). - H. Schiebel, P. Schulze, W.-D. Stohrer,
B. Jastorff, K. H. Maurer, D. Leibfritz.
Fast
atom bombardment mass spectrometry of nucleoside cyclophosphates and
structurally related compounds: FAB induced reactions prior to desorption. Biomed.
Mass Spektrom., 12, 170-180 (1985). - J.
Sianoudis, A. Mayer, D. Leibfritz.
Investigation
of intracellular phosphate pools of the green alga chlorella using P-31 nuclear
magnetic resonance. OMR, 22, 364-368 (1984). - D. Leibfritz, E. Haupt, N. Dubischar. H.
Lachmann, R. Oekonomopulos, G. Jung.
Synthese von 2-Methylalanin-Peptiden, die
pH-Abhängigkeit ihrer C-13-NMR-Spektren und eine neue Methode zur Auswertung
über CS-Diagramme. Tetrahedron, 38, 2165-2181 (1982). - R. Oekonomopulos, G. Jung, D. Leibfritz.
C-13-NMR und Konformation eines
membranmodifizierenden, synthetischen
Nonadekapeptid-Analogen von Alamethicin und seinen Zwischenstufen. Tetrahedron, 38, 2157-2164 (1982). - D. Leibfritz, E. Haupt, W.E. Hull, W.D.
Weber.
Strukturnachweis von 9-a-Hydroxyoestron durch zweidimensionale
Protonon-FT-NMR und 13C-NMR-Spektroskopie. Liebigs Ann. Chem. 1982, 1971-1981. - G. Quinkert, G. Dürner, E. Kleiner, F.
Adam, E. Haupt, D. Leibfritz.
Regeln zur Bestimmung von Spektren
bei 2.4-Cyclohexadien-1-onen. Chem. Ber. 113, 2227-2248 (1980). - H. tom Dieck, H. Bruder, K. Hellfeldt, M.
Feigel, D. Leibfritz.
Starre Phenylgruppen-Konformation in
Komplexen. Angew. Chemie 92, 395-396 (1980). - G. Quinkert, G. Dürner, E. Kleiner, E.
Haupt, D. Leibfritz.
Spektroskopische Identifizierung
polymethylsubstituierter 2.4-Cyclohexadienone. Angew. Chem. 91, Nr. 7, 584-585 (1979). - M. Feigel, H. Kessler, D. Leibfritz, A.
Walter.
Direct
observation of the ionization of tropylium azide in liquid SO2 and
selektive migration of the azide ligand in less polar solvent. JACS 101, 1943-1950 (1979). - G. Quinkert, H. Englert, F. Cech, A.
Stegk, E. Haupt, D. Leibfritz, D. Rehm.
Über das seco-isomere Dienylketen
aus 2, 4-Androstadien-1-on. Chem. Ber. 112, 310-348 (1979). - D. Leibfritz, W. Mayr, R. Oekonomopulos,
G. Jung.
13C-NMR spectroscopic studies on the conformation during stepwise
synthesis of peptides bound to solubilizing polymer supports. Tetrahedron
34, 2045-2050 (1978). - F.
Hohmann, H. tom Dieck, Th. Mack, D. Leibfritz.
Elektronenreiche Übergangsmetallkomplexe: Dien-bis-(Phosphin)
Molybdändi-carbonyle. J. Organometall. Chem. 132, 255-263 (1977). - D. Leibfritz, H. tom Dieck.
Intramolekularer Ligandenaustausch in einkernigen
Heterodien-Eisentri-carbonylkomplexen. J. Organometall. Chem. 195, 255-261 (1976). - G. Boheim, K. Janko, D. Leibfritz, T.
Ooka, W. König, G. Jung.
Structural
and membrane modifying properties of Suzukacillin. A peptide antibiotic
related to Alamethicin. Part B: Pore formation in black lipid films. Biochemica Biophysica
Research Acta 433, 182-199 (1976). - G. Jung, W.a. König, D. Leibfritz, T.
Ooka, K. Janko, G. Boheim.
Structural
and membrane modifying properties of Suzukacillin. A peptide antibiotic
related to Alamethicin. Part A: Sequence and conformation Biochemica
Biophysica Research Acta 433,
164-181 (1976). - D. Leibfritz.
Stereochemische Anwendungen der C-13
NMR-Spektroskopie. Habilitationsschrift, Univ.
Frankfurt (1975). - W. Majunke, D. Leibfritz, Th. Mack, H.
tom Dieck.
Intramolekularer cis/trans- Austausch von
Carbonylliganden in (L-L)M(CO)4-Komplexen. Chem. Ber. 108, 3025-3029 (1975). - D. Leibfritz.
Nachweis des Verdrillungsgrades bei Arylverbindungen
mit Hilfe der C-13-NMR-Spektroskopie. Chem. Ber., 108, 3014-3024 (1975). - G. Jung, N. Dubischar, D. Leibfritz.
C-13-NMR
and circular dichroism studies on Alamethicin. Eur. J. Biochem., 54, 395-409 (1975). - D. Leibfritz.
Nachweis spezifischer Calcium- und
Natriumkomplexierung durch das Antibiotikum Rifamycin mit Hilfe der
C-13-NMR-Spektroskopie. THL 1974, 4125-4128. - G. Jung, D. Leibfritz, M. Ottnad, N.
Dubischar.
Dynamic
conformations and aggregation of the membrane active Alamethicin. Z. Physiol. Chem. 355, 45-46 (1974). - G. Jung, N. Dubischar, D. Leibfritz, M.
Ottnad, H. Probst, C. Stump.
On
the conformation of Alamethicin Peptides. Proc. 13. Europ. Peptide Symposium, 1974, 345-354. - G. E. Hawkes, C. Marzin, D. Leibfritz, S. R. Johns, K. Herwig, R. A.
Cooper, D.
W. Roberts, J. D. Roberts.
Lanthanide
induced 13C NMR-shifts NMR-Shift-Reagents. Ed.
R.E. Sievers, Academic Press (1973). - H. O. Kalinowski, H. Kessler, D.
Leibfritz, A. Pfeffer.
Lösungsmittel und Säurekatalysierte
Z, E-Tropomerisierung eines Hydrazons Chem. Ber. 106, 1023-1032 (1973). - D. Leibfritz, J. D. Roberts.
Carbon-13
spectra of cholic acids. Inclusions in sodium desoxy-cholate solutions. JACS 95, 4996-5003 (1973). - C. Marzin, D. Leibfritz, J. D. Roberts.
NMR-Shift-Reagents:
Abnormal shifts produced by complexation of lanthanide chelates with saturated
amines and an isocyanide. Proc.
Nat. Acad. Sci. (USA)
70, 562-563 (1973). - D.
Leibfritz, G. E. Hawkes, D. W. Roberts, J. D. Roberts.
NMR-shift-reagents.
The question of the orientation of the magnetic axis in
Lanthanide-substrate-complexes. JACS 95, 1659 (1973). - D. Leibfritz, B. O. Wagner, J. D. Roberts.
13C-NMR-spektroskopische
Untersuchungen an Grignard-Verbindungen. Liebigs Ann. 763, 173-183 (1972). - D. Leibfritz.
Röntgenphotoelektroskopie an Eisenproteiden. Zur
Wertigkeit des Eisens in Ferredoxinen. Ang. Chem. 84, 156-158 (1972). - H. Kessler, D. Leibfritz.
Hammett-Beziehung und sterische Einflüsse auf die
Rotation um partielle CN-Doppelbindungen in aromatischen Guanidiniumsalzen. Chem. Ber. 104, 2158-2169 (1971). - H. Kessler, P. Bley, D. Leibfritz.
Planare Stickstoffinversion in Iminokohlensäureestern
und Iminothiokohlensäure-estern. Einfluß der Substitution am Aminokohlenstoff
und auf Inversionsgeschwindigkeit am Stickstoff. Tetrahedron 27, 1687-1697 (1971). - H. Kessler, D. Leibfritz.
Mechanismus der
syn-anti-Isomerisierung in Iminen. Diastereotopie und Enantiotopie. Chem. Ber. 104, 2143-2157 (1971). - D. Leibfritz, W. Bremser.
Zum Berliner Blau-Problem.
Röntgenphotoelektronenspektren von zwei- und dreiwertigem Eisen. Chem. Zeitg. 94, 982 (1970). - H. Kessler, D. Leibfritz.
Empirische Abschätzung von
Inversionsbarrieren III. THL 1970, 4297-4300. - H. Kessler, D. Leibfritz.
Empirische Abschätzung von
Inversionsbarrieren II. THL 1970, 4293-4296. - H. Kessler, D. Leibfritz.
Empirische Abschätzung von
Inversionsbarrieren I. THL 1970, 4289-4292. - D. Leibfritz.
NMR-Untersuchungen zur
Isomerisierung an CN-Bindungen. Dissertation, Universität Tübingen
(1970). - H. Kessler, D. Leibfritz.
Vergleich der Inversionsgeschwindigkeiten am doppelt
gebundenen Stickstoff in Guanidinen und Imidazolidin-iminen. Liebigs Ann. Chem. 737, 53-60 (1970). - H. Kessler, D. Leibfritz.
Konformation und Rotationsbarrieren
in N,N'-Diaryl-thioharnstoffen. THL 1970, 1595-1598. - D.
Leibfritz, H. Kessler.
Hammett
correlation of inversion barriers in the syn-anti-isomerization of
imino-carbonates. Chem. Comm. 1970, 655-657. - H. Kessler, D. Leibfritz.
Magnetische Nichtäquivalenz als
Beweis für die Inversion am Stickstoff in Iminen. THL 1970, 1423-1426. - H. Kessler, D. Leibfritz.
Untersuchungen zur Inversion am doppelt gebundenen
Stickstoffatom am Beispiel der Tetramethylguanidine. Tetrahedron 26, 1805-1820 (1970). - A. Rieker, P. Niederer, D. Leibfritz.
Chemisch induzierte Kernpolarisation im System
Phenyl-diazoniumtetrafluoroborat / NaBH4. Nachweis des
Phenylradikals bei der Gomberg-Arylierung. THL 1969, 4287-4290. - H. Kessler, D. Leibfritz.
Lösungsmitteleinflüsse auf die Stickstoffinversion
in Guanidinen. Rotation um die CN-Einfach- und CN-Doppelbindungen in
Guanidiniumsalzen. Tetrahedron 25, 5127-5145 (1969). - H. Kessler, D. Leibfritz.
Isomerisierungen an der CN- und CS-Doppelbindung in
Guanidinium- und Thiuroniumsalzen. THL 1969, 427-430.
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