(abstracts excluded)
E. Cant, M. Maenhaut-Claeys, M. Francque and M. Vandewalle.
Studies in Organic Mass Spectrometry XVII. The fragmentation of methyl enol ethers of 1,3-cyclohexanediones and 1,3-cyclopentanediones.
Bull. Soc. Chim. Belges 83, 93-103 (1974).
M. Claeys, M. Verzele, M. Vandewalle, J. Leysen and P. Laduron.
Studies in Organic Mass Spectrometry XV. Mass fragmentographic identification of epinine in adrenal medulla and as a product of an in vitro enzymatic methylation.
Biomed. Mass Spectrom. 1, 103-108 (1974).
M. Maenhaut-Claeys and M. Vandewalle.
Studies in Organic Mass Spectrometry XIX. The fragmentation of the trimethylsilyl derivatives of some 2,3-diakyl-1,4-cyclopentanediols.
Bull. Soc. Chim. Belges 83, 343-355 (1974).
M. Maenhaut-Claeys, P. De Clercq and M. Vandewalle.
Studies in Organic Mass Spectrometry XX. Stereospecificity in hydrogen transfer reactions in mass spectra of TMS-derivates of some 2,3-dialkyl-1,4-cyclopentanediols.
Org. Mass Spectrom. 9, 1182-1187 (1974).
P. Laduron, P. Van Gompel, J. Leysen and M. Claeys.
In vivo formation of epinine in adrenal medulla: a possible step for adrenaline biosynthesis.
Naunyn-Schmiedeberg's Arch. Pharmacol. 286, 227-238 (1974).
W. Lauwers, J. Leysen, H. Verhoeven, P. Laduron and M. Claeys.
Identification of alkaloids. The condensation products of biogenic amines with formaldehyde, enzymatically formed from 5-methyltetrahydrofolic acid.
Biomed. Mass Spectrom. 2, 15-22 (1975).
M. Claeys, G. Muscettola and S.P. Markey.
Simultaneous measurement of imipramine and desipramine by selected ion recording with deuterated internal standards.
Biomed. Mass Spectrom. 3, 110-116 (1976).
M. Claeys, S.P. Markey and W. Maenhaut.
Variance analysis of error in selected ion monitoring assays using various internal standards. A practical study case.
Biomed. Mass Spectrom. 4, 122-128 (1977).
M. Claeys and D. Van Haver.
Conformational effects in the chemical ionization spectra of derivatives of isomeric 2,3-dimethyl-1,4-cyclopentanediols.
Org. Mass Spectrom. 12, 531-535 (1977).
D. Termont, F. Van Gaever, D. De Keukeleire, M. Claeys and M. Vandewalle.
Differentiation between regio- and stereoisomers of bicyclo(3,2,0)heptanone-2 derivatives by chemical ionization mass spectrometry.
Tetrahedron 33, 2433-2435 (1977).
M. Claeys, E. Messens, M. Van Montagu and J. Schell.
GC/MS determination of cytokinins in Agrobacterium tumefaciens cultures.
Fresenius Z. Anal. Chem. 290, 125-126 (1978).
M. T. Rosseel, M.G. Bogaert and M. Claeys.
Quantitative GLC determination of the cis- and trans-isomers of doxepin and desmethyldoxepin in human plasma.
Fresenius Z. Anal. Chem. 290, 158 (1978).
M. Claeys, H. Matveeva, A. Devreese, D. Termont and M. Vandewalle.
Regio- and stereochemical effects in the chemical ionization mass spectra of isomeric bicyclo(3,2,0)heptan-2-one trimethylsiloxy derivatives.
Bull. Soc. Chim. Belges 87, 375-388 (1978).
M. Van Audenhove, D. Termont, D. De Keukeleire, M. Vandewalle and M. Claeys.
Regioselectivity in (2 + 2) photocycloaddition reactions between cyclopent-2-enones and 8-oxysubstituted acrylates.
Tetrahedron Lett. 23, 2057-2060 (1978).
G. Muscettola, F.K. Goodwin, W.Z. Potter, M. Claeys and S.P. Markey.
Imipramine and desipramine in plasma and spinal fluid. Relationship to clinical response and serotonin metabolism.
Arch. Gen. Psychiatry 35, 621-625 (1978).
M.T. Rosseel, M.G. Bogaert and M. Claeys.
Quantitative determination of the cis- and trans-isomers of doxepin and desmethyldoxepin by GLC.
J. Pharm. Sci. 67, 802-805 (1978).
A.G. Herman, M. Claeys, S. Moncada and J.R. Vane.
Biosynthesis of prostacyclin (PGI2) and 12L-hydroxy-5,8,10,14-eicosatetraenoic acid (HETE) by pericardium, pleura, peritoneum and aorta of the rabbit.
Prostaglandins 18, 439-452 (1979).
M. Claeys, M. Van Audenhove and M. Vandewalle.
Evidence for the occurrence of an oxygen to oxygen acyl shift in 7-acetoxy(3,2,0)heptan-2-ones upon chemical ionization mass spectrometry.
Bull. Soc. Chim. Belges 88, 799-805 (1979).
M. Claeys, C. Van Hove, A. Duchateau and A.G. Herman.
Quantitative determination of 6-oxo-PGF1 in biological fluids by gas chromatography mass spectrometry.
Biomed. Mass Spectrom. 7, 544-548 (1980).
M. Claeys, E. Wechsung, A.G. Herman and D.H. Nugteren.
Lack of prostacyclin biosynthesis by aortic tissue of the chicken.
Prostaglandins 21, 739-749 (1981).
J.R. Beetens, M. Claeys and A.G. Herman.
Antioxidants increase the formation of 6-oxo-PGF1 by ram seminal vesicle microsomes. Biochem.
Pharmacol. 30, 2811-2815 (1981).
M. Claeys, M.-C. Coene, A.G. Herman, M. Van der Planken, G.H. Jouvenaz and D.H. Nugteren.
15-Hydroxy-5,8,11,13-eicosatetraenoic acid (15-HETE) formation by rabbit peritoneal tissue.
Agents and Actions 11, 589-591 (1981).
M.-C. Coene, C. Van Hove, M. Claeys and A.G. Herman.
Arachidonic acid metabolism by cultured mesothelial cells. Different transformations of exogenously added and endogenously released substrate.
Biochem. Biophys. Acta 710, 437-445 (1982).
M. Claeys, M.-C. Coene, A.G. Herman, G.H. Jouvenaz and D.H. Nugteren.
Characterization of monohydroxylated lipoxygenase metabolites of arachidonic and linoleic acid in rabbit peritoneal tissue.
Biochem. Biophys. Acta 713, 160-169 (1982).
J.G. De Mey, M. Claeys and P.M. Vanhoutte.
Endothelium-dependent inhibitory effects of acetylcholine, adenosine triphosphate, thrombin and arachidonic acid in the canine femoral artery.
J. Pharmacol. Exp. Ther. 222, 166-173 (1982).
M. Rampart, C. Van Hove, H. Bult, M. Claeys and A.G. Herman.
Mechanism of complement-induced stimulation of prostacyclin production by isolated rabbit peritoneum.
Prostaglandins 25, 245-261 (1983).
M. Van Bockstaele, L. Dillen, M. Claeys and W.P. De Potter.
Simultaneous determination of the three major monoamine metabolites in cerebrospinal fluid by high-performance liquid chromatography with electrochemical detection.
J. Chromatogr. B 275, 11-20 (1983).
G. Vandeplassche, M. Claeys, W. Oyaert and A. Houvenaghel.
Influence of prostaglandins on bovine abomasum : biosynthesis and in vitro motility experiments.
Prostaglandins, Leukotrienes and Medicine 14, 15-24 (1984).
M. Vandewoude, M. Claeys and I. De Leeuw.
Determination of -tocopherol in human plasma by high performance liquid chromatography with electrochemical detection.
J. Chromatogr. B 311, 176-182 (1984).
G.L. Laekeman, M. Claeys, M. Vrints and A.G. Herman.
No evidence for a physiological role of 5-hydroxykynuramine in chicken hemostasis.
Agents and Actions 16, 443-445 (1985).
L. Üstünes, M. Claeys, G. Laekeman, A.G. Herman, A.J. Vlietinck and A. Özer.
Isolation and identification of two isomeric trihydroxy octadecenoic acids with prostaglandin E-like activity from onion bulbs (Allium cepa).
Prostaglandins 29, 847-865 (1985).
M. Claeys, G.A.A. Kivits, E. Christ-Hazelhof and D.H. Nugteren.
Metabolic profile of linoleic acid in porcine leukocytes through the lipoxygenase pathway.
Biochem. Biophys. Acta 837, 35-51 (1985).
L. Dillen, M. Claeys and W.P. De Potter.
Determination of dopamine-β-hydroxylase in cerebrospinal fluid by high performance liquid chromatography with electrochemical detection.
J. Pharmacol. Meth., 15, 51-63 (1986).
M.-C. Coene, H. Bult, M. Claeys, G.M. Laekeman and A.G. Herman.
Inhibition of rabbit platelet activation by lipoxygenase products of arachidonic and linoleic acid.
Thromb. Res., 42, 205-214 (1986).
A. Schoups, L. Dillen, M. Claeys, A. Duchateau, T.J. Verbeuren and W.P. De Potter.
Characterization of serotonin receptors and lack of effect of antidepressant therapy on monoamine functions in various regions of the rabbit brain.
Eur. J. Pharmacol., 126, 259-271 (1986).
L. Dillen, M. Claeys and W.P. De Potter.
Evaluation of parameters for central neuronal activity in cerebrospinal fluid of rabbits following yohimbine.
Biochem. Pharmacol. 35, 3977-3982 (1986).
G.M. Laekeman, M. Claeys, P.C. Rwangabo, A.G. Herman and A.J. Vlietinck.
Cardiovascular effects of 3-methyl-quercitin.
Planta Medica 433-437 (1986).
M. Claeys, H.E.P. Bazan, D.L. Birkle and N.G. Bazan.
Diacylglycerols interfere in normal phase HPLC analysis of lipoxygenase products of docosahexaenoic or arachidonic acids.
Prostaglandins 32, 813-827 (1986).
F.J. Zijlstra, A.M.W.C. van den Broek, J.E. Vincent, P.P.H.M. Diderich, A.M.C. op de Hoek-Fes and M. Claeys.
Formation of leukotriene B4, 20-hydroxy leukotriene B4 and other arachidonic acid metabolites by macrophages during peritonitis in patients with continuous ambulatory peritoneal dialysis.
Prostaglandins, Leukotrienes and Medicine 27, 151-160 (1987).
L. Dillen, M. Claeys and W.P. De Potter.
Effect of the 2-antagonist idazoxan on monoaminergic parameters in the cerebrospinal fluid of rabbits.
Eur. J. Pharmacol. 137, 33-40 (1987).
P. Bakana, M. Claeys, J. Totté, L.A.C. Pieters, L. Van Hoof, T. Vemba, D.A. Vanden Berghe and A.J. Vlietinck.
Structure and chemotherapeutical activity of a polyisoprenylated benzophenone from the stem bark of Garcinia huillensis.
J. Ethnopharmacol. 21, 75-84 (1987).
J. Claereboudt, L. Van Vaeck, W. Baeten, H. Geise, R. Gijbels and M. Claeys.
The use of laser microprobe mass spectrometry for monitoring the Wittig synthesis.
Anal. Chim. Acta 195, 343-350 (1987).
L. Dillen, A. Duchateau, W.P. De Potter and M. Claeys.
Selected ion monitoring analysis of monoamine metabolites in cerebrospinal fluid. Application to the study of in vivo effects of 2-antagonists.
Biomed. Environm. Mass Spectrom. 14, 675-682 (1987).
P.C. Rwangabo, M. Claeys, L. Pieters, J. Corthout, D.A. Vanden Berghe and A.J. Vlietinck.
Umuhengerin, a new antimicrobially active flavanoid from Lantana trifolia.
J. Nat. Prod. 51, 966-968 (1988).
M. Claeys, A. Schepers, L. Dillen and W.P. De Potter.
Evaluation of sample work-up methods and internal standards for the evaluation of catecholamines in urine by HPLC with electrochemical detection.
J. Pharm. Biomed. Anal. 6, 895-902 (1988).
A. Duchateau, H. Martens, H. Teuchy, A. Schoups and M. Claeys.
Evaluation of sample work-up methods and internal standards for the determination of
5-hydroxytryptamine and 5-hydroxyindoleacetic acid in brain by HPLC with electrochemical detection.
J. Pharm. Biomed. Anal. 6, 903-909 (1988).
J. Claereboudt, B. De Spiegeleer, B. Lippert, E.A. De Bruyn and M. Claeys.
Fast atom bombardment and tandem mass spectrometry for the structural characterization of cisplatin analogs and bisnucleobase adducts with cisplatin.
Spectrosc. Int. J. 7, 91-112 (1989).
W. Baeten, J. Claereboudt, M. Claeys, B.M. Van Liedekerke and A.P. De Leenheer.
Application of fast atom bombardment and tandem mass spectrometry for the analysis of azure dyes.
Spectrosc. Int. J. 7, 113-122 (1989).
A. Gergely, H. Van den Heuvel and M. Claeys.
Quantitative studies of the effect of added acid on the sputtering of physalaemin during fast atom bombardment.
Spectrosc. Int. J. 7, 133-144 (1989).
M. Claeys.
Mass spectrometry methods for structural determination and analysis of lipoxygenase and cytochrome P-450 metabolites of essential fatty acids.
Mass Spectrom. Rev. 8, 1-34 (1989).
W. Baeten, J. Claereboudt, H. Van den Heuvel and M. Claeys.
Tandem mass spectrometry of leucine enkephalin and physalaemin using a hybrid instrument.
Biomed. Environm. Mass Spectrom. 18, 727-732 (1989).
J. Claereboudt, R. De Spiegeleer, E.A. De Bruyn, R. Gijbels and M. Claeys.
Structural characterization of cisplatin analogs by fast atom bombardment and laser microprobe mass spectrometry.
J. Pharm. Biomed. Anal. 7, 1599-1610 (1989).
E.G. Van den Eeckhout, A. De Bruyn, H. Pepermans, E. Esmans, I. Vryens, J. Claereboudt, M.
Claeys and J. E. Sinsheimer.
Adduct formation identification between phenylglycidyl ether and 2'-deoxyadenosine and thymidine by chromatography, mass spectrometry and nuclear magnetic resonance spectroscopy.
J. Chromatogr. B 504, 113-128 (1990).
E.G. Van den Eeckhout, E.L. Esmans, J. Claereboudt, J. Coene and M. Claeys.
Chromatography and characterization of phenylglycidyl ether nucleoside adducts.
Nucleos. Nucleot. 9, 463-465 (1990).
J. Claereboudt, E.L. Esmans, E.G. Van den Eeckhout and M. Claeys.
Fast atom bombardment and tandem mass spectrometry for the identification of nucleoside adducts with phenylglycidyl ether.
Nucleos. Nucleot. 9, 333-344 (1990).
A. Hisham, L.A.C. Pieters, M. Claeys, E. Esmans, R. Dommisse and A.J. Vlietinck.
Uvariamicin-I, II and III : three novel acetogenins from Uvaria narum.
Tetrahedron Lett. 31, 4649-4652 (1990).
A.M. Baldé, L. A. Pieters, A. Gergely, H. Kolodziej, M. Claeys and A.J. Vlietinck.
A-type proanthocyanidins from stem-bark of Pavetta owariensis.
Phytochemistry 30, 337-342 (1991).
A. Hisham, L.A.C. Pieters, M. Claeys, E. Esmans, R. Dommisse and A.J. Vlietinck.
Squamocin-28-one and panalicin, two acetogenins from Uvaria narum.
Phytochemistry 30, 545-548 (1991).
A.M. Baldé, L.A. Pieters, A. Gergely, V. Wray, M. Claeys and A.J. Vlietinck.
Spermacoceine, a bis-indole alkaloid from Borreria verticillata.
Phytochemistry 30, 997-1000 (1991).
A.M. Baldé, M. Claeys, L.A. Pieters, V. Wray and A.J. Vlietinck.
Ferulic acid esters from stem-bark of Pavetta owariensis.
Phytochemistry 30, 1024-1026 (1991).
J. Corthout, L.A. Pieters, M. Claeys, D. Vanden Berghe and A.J. Vlietinck.
Antiviral ellagitannins from Spondias mombin.
Phytochemistry 30, 1129-1130 (1991).
Q.M. Li, H. Van den Heuvel, O. Delorenzo, J. Corthout, L.A.C. Pieters, A.J. Vlietinck and M.
Claeys.
Mass spectral characterization of C-glycosidic flavonoids isolated from a medicinal plant (Passiflora incarnata).
J. Chromatogr. B 562, 435-446 (1991).
L. Üstünes, A. Özer, G.M. Laekeman, J. Corthout, L.A.C. Pieters, W. Baeten, A.G. Herman, M.
Claeys and A.J. Vlietinck.
Chemical characterization and pharmacological activity of nazlinin, a novel indole alkaloid from Nitraria schoberi.
J. Nat. Products 54, 959-966 (1991).
A. Hisham, L.A.C. Pieters, M. Claeys, H. Van den Heuvel, E. Esmans, R. Dommisse and A.J.
Vlietinck.
Acetogenins from root bank of Uvaria narum.
Phytochemistry 30, 2373-2377 (1991).
A.M. Baldé, L.A. Pieters, V. Wray, H. Kolodziej, D.A. Vanden Berghe, M. Claeys and A.J.
Vlietinck.
Dimeric and trimeric proanthocyanidins possessing a doubly linked structure from Pavetta owariensis.
Phytochemistry 30, 4129-4135 (1991).
E. Van Den Eeckhout, J. Coene, J. Claereboudt, F. Borremans, M. Claeys, E. Esmans and J.E.
Sinsheimer.
Comparison of the isolation of adducts of 2'-deoxycytidine and 2'-deoxyguanosine with phenylglycidyl ether by high performance liquid chromatography on a reversed-phase column and a polystyrene-divinylbenzene column.
J. Chromatogr. B 541, 317-331 (1991).
L. Dillen, S. Boel, W.P. De Potter and M. Claeys.
Mass spectrometric characterization of bovine chromaffin granule peptides related to chromogranin B.
Biochim. Biophys. Acta 1120, 105-112 (1992).
Q.M. Li, H. Van den Heuvel, L. Dillen and M. Claeys.
Differentiation of 6-C and 8-C-glycosidic flavonoids by positive ion fast atom bombardment and tandem mass spectrometry.
Biol. Mass Spectrom. 21, 213-221 (1992).
A. Hisham, V. Wray, L. Pieters, M. Claeys, R. Dommisse and A. Vlietinck.
Complete 1H and 13C NMR spectral assignment of patchoulenone, a tricyclic sesquiterpene ketone.
Magnetic Resonance in Chemistry 30, 295-297 (1992).
W.F. Broekaert, W. Mariën, F.R.G. Terras, M.F.C. De Bolle, P. Proost, J. Van Damme, L. Dillen, M.
Claeys, S.B. Rees, J. Vanderleyden and B.P.A. Cammue.
Antimicrobial peptides from Amaranthus caudatus seeds with sequence homology to the cysteine/glycine-rich domain of chitin-binding proteins.
Biochemistry 31, 4308-4314 (1992).
Y. Dang, H.J. Geise, J. Claereboudt, H. Van den Heuvel and M. Claeys.
Electron impact mass spectrometric behaviour of bis(substituted benzoato) complexes of bis(0-cyclopentadienyl)titanium(IV).
Inorg. Chim. Acta 201, 185-190 (1992).
Q.M. Li, L. Dillen and M. Claeys.
Positive ion FAB analysis of flavonoid glycosides. Simple procedures for desalting and control of sodium salt contamination.
Biol. Mass Spectrom. 21, 408-410 (1992).
A. Hisham, L. Pieters, M. Claeys, R. Dommisse, D. Vandenberghe and A. Vlietinck.
Guaianolide glucosides from Elephantopus scaber.
Planta Medica 58, 474-475 (1992).
J. Corthout, L.A. Pieters, M. Claeys, D. Vanden Berghe and A.J. Vlietinck.
Antiviral caffeoyl esters from Spondias mombin.
Phytochemistry 31, 1979-1981 (1992).
J. Claereboudt, W. Baeten, H. Geise and M. Claeys.
Structural characterization of mono- and bisphosphonium salts by fast atom bombardment mass spectrometry and tandem mass spectrometry.
Org. Mass Spectrom. 28, 71-82 (1993).
L. Dillen, B. Miserez, M. Claeys, D. Aunis and W. De Potter.
Posttranslational processing of proenkephalins and chromogranins/secretogranins.
Neurochem. Int. 22, 315-352 (1993).
J. Claereboudt, E.L. Esmans and M. Claeys.
Mass spectral behaviour of [M – H]– ions of some pyrimidine nucleosides.
Biol. Mass Spectrom. 22, 419-421 (1993).
J. Claereboudt, M. Claeys, H.J. Geise, R. Gijbels and A. Vertes.
Laser microprobe mass spectrometry of quaternary phosphonium salts: direct versus matrix-assisted laser desorption.
J. Am. Soc. Mass Spectrom. 4, 798-812 (1993).
A. Hisham, U. Sreekala, L. Pieters, T. De Bruyne, H. Van den Heuvel and M. Claeys.
Epoxymurins A and B, two biogenetic precursors of annonaceous acetogenins from Annona muricata.
Tetrahedron 31, 6913-6920 (1993).
M. Claeys, H. Van den Heuvel, J. Claereboudt, J. Corthout, L. Pieters and A.J. Vlietinck.
Determination of the double bond position in long-chain 6-alkenyl salicylic acids by collisional activation.
Biol. Mass Spectrom. 22, 647-653 (1993).
L. Pieters, T. De Bruyne, M. Claeys, A. Vlietinck, M. Calomme and D. Vanden Berghe.
Isolation of a dihydrobenzofuran lignan from South American Dragon's blood (Croton spp.) as an inhibitor of cell proliferation.
J. Nat. Products 56, 899-906 (1993).
A.M. Baldé, T. De Bruyne, L. Pieters, M. Claeys, D. Vanden Berghe, A. Vlietinck, V. Wray and H.
Kolodziej.
Proanthocyanidins from stem bark of Pavetta owariensis. 1NMR study of acetylated trimeric proanthocyanidins possessing a doubly-linked structure.
J. Nat. Products 56, 1078-1088 (1993).
M. Claeys and H. Van den Heuvel.
Radical processes in remote charge fragmentations of lithium-cationized long-chain alkenyl and alkadienyl salicylic acids.
Biol. Mass Spectrom. 23, 20-26 (1994).
S. Boel, L. Dillen, H. Van den Heuvel and M. Claeys.
Fragmentation characteristics of neuropeptides related to chromogranin B and proenkephalin B using fast atom bombardment and collision-induced dissociation.
Biol. Mass Spectrom. 23, 603-611 (1994).
A. Hisham, C. Sunitha, V. Sreekala, L. Pieters, T. De Bruyne, H. Van den Heuvel and M. Claeys.
Reticulacinone, an acetogenin from Annona reticulata.
Phytochemistry 35, 1325-1329 (1994).
Q.M. Li and M. Claeys.
Characterization and differentiation of diglycosyl flavonoids by positive ion fast atom bombardment and tandem mass spectrometry.
Biol. Mass Spectrom. 23, 406-416 (1994).
J. Corthout, L. Pieters, M. Claeys, S. Geerts, D. Vanden Berghe and A. Vlietinck.
Antibacterial and molluscicidal phenolic acids from Spondias mombin.
Planta Medica 60, 459-464 (1994).
A. Musuku, M.I. Selala, T. De Bruyne, M. Claeys and P.J.C. Schepens.
Isolation and structure determination of a new roquefortine-related mycotoxin from Penicillium verrucosum var. cyclopium isolated from cassava.
J. Nat. Prod. 57, 983-987 (1994).
J.F. Van Bocxlaer, M. Claeys, H. Van den Heuvel and A.P. De Leenheer.
Characterization of acylcarnitines using fast atom bombardment mass spectrometry and gas chromatography/mass spectrometry.
J. Mass Spectrom. 30, 69-80 (1995).
A.M. Baldé, T. De Bruyne, L. Pieters, H. Kolodziej, D. Vanden Berghe, M. Claeys and A. Vlietinck.
Oligomeric proanthocyanidins possessing a doubly linked structure from Pavetta owariensis.
Phytochemistry 38, 719-723 (1995).
K. Cimanga, T. De Bruyne, A. Lasure, Q.M. Li, L. Pieters, M. Claeys, D. Vanden Berghe, K. Kambu, L. Tona and A. Vlietinck.
Flavonoid O-glycosides from the leaves of Morinda morindoides.
Phytochemistry 38, 1301-1303 (1995).
A.M. Baldé, T. De Bruyne, L. Pieters, H. Kolodziej, D. Vanden Berghe, M. Claeys and A. Vlietinck.
Tetrameric proanthocyanidins containing a double interflavanoid (A-type) linkage from Pavetta owariensis.
Phytochemistry 40, 933-938 (1995).
X.F. Zhou, Z.H. Peng, H.J. Geise, B.X. Peng, Z.X. Li, M. Yan, R. Dommisse, R. Carleer and M.
Claeys.
Blue sensitizing dyes: synthesis, spectroscopy and performance in photographic emulsions.
J. Imag. Sci. and Techn. 39, 244-252 (1995).
F. Liang, L. Dillen, X.Y. Zhang, E.P. Coen, R. Hogue-Angeletti, M. Claeys and W.P. De Potter.
Vasostatins, N-terminal products of chromogranin A, are released from the stimulated calf spleen in vitro.
Acta Physiol. Scand. 155, 23-30 (1995).
K. Vanhoutte, P. Joos, F. Lemière, W. Van Dongen, E.L. Esmans, M. Claeys and E. Van den Eeckhout.
Thermospray liquid chromatography-mass spectrometry of the DNA adducts formed between 2'-deoxynucleosides and bisphenol A diglycidyl ether.
J. Mass Spectrom. 30, 1453-1461 (1995).
S. Chen and M. Claeys.
Approach to the large-scale preparation of highly pure phosphatidylserine from bovine brain.
J. Chromatogr. B. 666, 178-182 (1995).
L. Dillen, X.Y. Zhang, M. Claeys, F. Liang, W.P. De Potter, W. Van Dongen and E.L. Esmans.
Isolation and mass spectrometric characterization of an oxidized form of vasostatin I, an N-terminal chromogranin A-derived protein, from bovine chromaffin cells.
J. Mass Spectrom. 30, 1599-1604 (1995).
J.B. Sindambiwe, A. Baldé, T. De Bruyne, L. Pieters, H. Van den Heuvel, M. Claeys, D. Vanden Berghe and A.J. Vlietinck.
Triterpenoid saponins from Maesa lanceolata.
Phytochemistry 41, 269-277 (1995).
K. Cimanga, T. De Bruyne, A. Lasure, B. Van Poel, L. Pieters, M. Claeys, D. Vanden Berghe and A.
Vlietinck.
In vitro biological activities of alkaloids from Cryptolepis sanguinolenta.
Planta Med. 62, 22-27 (1996).
M. Claeys, H. Van den Heuvel, S. Chen, P.J. Derrick, F.A. Mellon and K.R. Price.
Comparison of high- and low-energy collision-induced dissociation tandem mass spectrometry in the analysis of glycoalkaloids and their aglycons.
J. Am. Soc. Mass Spectrom. 7, 173-181 (1996).
K. Cimanga, T. De Bruyne, L. Pieters, M. Claeys and A. Vlietinck.
New alkaloids from Cryptolepis Sanguinolenta.
Tetrahedron Lett. 37, 1703-1706 (1996) and correction 37, 3217 (1996).
M. Claeys, L. Nizigiyimana, H. Van den Heuvel and P.J. Derrick.
Mechanistic aspects of charge-remote fragmentation in saturated and mono-unsaturated fatty acid derivatives. Evidence for homolytic cleavage.
Rapid Commun. Mass Spectrom. 10, 770-774 (1996).
F. Lemière, P. Joos, K. Vanhoutte, E.L. Esmans, A. De Groot, M. Claeys and E. Van den Eeckhout.
Phenylglycidyl ether adducts of 2'-deoxycytidine and 2'-deoxyadenosine stability in solution and structure analysis by electrospray tandem mass spectrometry.
J. Am. Soc. Mass Spectrom. 7, 682-691 (1996).
C. Borges, M.A. Almoster Ferreira and M. Claeys.
Characterisation of stereoisomeric -methylene--lactone furanosidic derivatives by direct chemical ionisation mass spectrometry and liquid secondary ion mass spectrometry with tandem mass spectrometry.
Rapid Commun. Mass Spectrom. 10, 757-766 (1996).
X.Y. Zhang, L. Dillen, K. Vanhoutte, W. Van Dongen, E.L. Esmans and M. Claeys.
Characterization of unstable intermediates and oxidized products formed during cyanogen bromide cleavage of peptides and proteins by electrospray mass spectrometry.
Anal. Chem. 68, 3422-3430 (1996).
A. Van Cleempoel, R. Gijbels, D. Zhu, M. Claeys, H. Richter and A. Fonseca.
Quantitative determination of C60 and C70 in soot extracts by high performance liquid chromatography and mass spectrometric characterization.
Fullerene Science and Technology 4, 1001-1017 (1996).
A. Van Cleempoel, R. Gijbels, M. Claeys and H. Van den Heuvel.
Characterization of ozonated C60 and C70 by high performance liquid chromatography and low- and high-energy collision-induced-dissociation tandem mass spectrometry.
Rapid Commun. Mass Spectrom. 10, 1579-1584 (1996).
S. Chen and M. Claeys.
Characterization of -3-docosahexaenoic acid-containing molecular species of phospholipids in rainbow trout liver.
J. Agric. Food Chemistry 44, 3120-3125 (1996).
L. Nizigiyimana, H. Van den Heuvel and M. Claeys.
Comparison of low- and high-energy collision-induced dissociation tandem mass spectrometry in the analysis of ricinoleic and ricinelaidic acid.
J. Mass Spectrom. 32, 277-286 (1997).
K. Cimanga, T. De Bruyne, B. Van Poel, Y.L. Ma, M. Claeys, L. Pieters, K. Kambu, L. Tona, P.
Bakana, D. Vanden Berghe and A.J. Vlietinck.
Complement-modulating properties of a kaempferol 7-O-rhamnosylsophoroside from the leaves of Morinda morindoides.
Planta Medica 63, 220-223 (1997).
S.H.J. Bauer, X.Y. Zhang, F. Liang, W.P. De Potter, M. Claeys and M. Przybylski.
Isolation and identification of intact chromogranin A and two N-terminal processing products from bovine adrenal medulla chromaffin granules by chromatographic and mass spectrometric methods.
Neuropeptides 31, 273-280 (1997).
I. V. Vedernikova, M. Claeys, C. Peten, C. Van Alsenoy, A. Haemers and Y. I. Ryabukhin.
The chemical properties of 1-substituted 4-oxopyrimidinium cations J. Heterocyclic Chem. 34, 161-170 (1997).
Y.L. Ma, Q.M. Li, H. Van den Heuvel and M. Claeys.
Characterization of flavone and flavonol aglycones by collision-induced dissociation tandem mass spectrometry.
Rapid Commun. Mass Spectrom. 11, 1357-1364 (1997).
H. Ndayikengurukiye, S. Jacobs, W. Tachelet, J. Van Der Looy, A. Pollaris, H.J. Geise, M. Claeys, J.M. Kauffmann and S. Janietz.
Alkoxylated p-phenylenevinylene oligomers: synthesis and spectroscopic and electrochemical properties.
Tetrahedron 53, 13811-13828 (1997).
C. Borges, M.A. Almoster-Ferreira, H. Van den Heuvel and M. Claeys
Characterization of stereoisomeric furanosidic derivatives by direct chemical ionization mass spectrometry and liquid secondary ion mass spectrometry with tandem mass spectrometry. Part II.
Rapid Commun. Mass Spectrom. 11, 1171-1177 (1997).
T. De Bruyne, K. Cimanga, L. Pieters, M. Claeys, R. Dommisse and A. Vlietinck
Gallocatechin-(4'O7)-epigallocatechin, a new biflavonoid isolated fron Bridelia ferrugininea.
Natural Product Letters 11, 47-52 (1997).
B.-L. Deng, J.A. Lepoivre, G. Lemière, R. Dommisse, M. Claeys, F. Boers and A. De Groot.
A practical synthesis of 3-methoxyflavones.
Liebigs Ann./Recueil 2169-2175 (1997).
L. Nizigiyimana, P.K. Rajan, A. Haemers, M. Claeys and P.J. Derrick.
Mechanistic aspects of high-energy collision-induced dissociation proximate to the charge in saturated fatty acid n-butyl esters cationized with lithium. Evidence for hydrogen radical removal.
Rapid Commun. Mass Spectrom. 11, 1808-1812 (1997).
L. Nizigiyimana, H. Van den Heuvel and M. Claeys.
Mechanistic aspects of high-energy collision-induced dissociation in 1,4-bis-unsaturated fatty acid esters cationized with lithium.
Bull. Soc. Chim. Belges 106, 439-446 (1997).
X.Y. Zhang, L. Dillen, S.H.J. Bauer, W. Van Dongen, F. Liang, M. Przybylski, E. Esmans, W.P. De Potter and M. Claeys.
Mass spectrometric identification of phosphorylated vasostatin II, a chromogranin A-derived protein fragment (1-113).
Biochim. Biophys. Acta 1343, 287-298 (1997).
K. Cimanga, T. De Bruyne, B. Van Poel, L. Pieters, M. Claeys, D. Vanden Berghe and A.J.
Vlietinck.
Dimeric alkaloids from Cryptolepis sanguinolenta as potent inhibitors of complement activation.
Pharm. Pharmacol. Lett. 7, 179-180 (1997).
Y. Huang, L. Pieters, K. Cimanga, T. De Bruyne, M. Claeys, G. Lemière, D. Vanden Berghe and A.J. Vlietinck.
Terpenoids from Wedelia chinensis.
Pharm. Pharmacol. Lett. 7, 175-177 (1997).
J.A. Hasrat, L. Pieters, M. Claeys, A. Vlietinck, J.-P. De Backer and G. Vauquelin.
Adenosine-1 active ligands: cirsimarin, a flavone glycoside from Microtea debilis.
J. Nat. Products 60, 638-641 (1997).
Y. Huang, T. De Bruyne, S. Apers, Y.L. Ma, M. Claeys, D. Vanden Berghe, L. Pieters and A.
Vlietinck.
Complement-inhibiting Cucurbitacin glycosides from Picria fel-terrae.
J. Nat. Prod. 61, 757-761 (1998).
M. Claeys, L. Nizigiyimana, H. Van den Heuvel, I. Vedernikova and A. Haemers.
Charge-remote and charge-proximate fragmentation processes in alkali-cationized fatty acid esters upon high-energy collisional activation. A new mechanistic proposal.
J. Mass Spectrom. 33, 631-643 (1998).
A. Van Cleempoel, J. Joutsensaari, E. Kauppinen, R. Gijbels and M. Claeys.
Aerosol synthesis and characterization of ultrafine fullerene particles.
Fullerene Science and Technology 6, 599-627 (1998).
S.-J. Chiou, S. Kotanen, A. Cerstiaens, D. Daloze, J. M. Pasteels, A. Lesage, J. W. Drijfhout, P.
Verhaert, L. Dillen, M. Claeys, H. De Meulemeester, B. Nuttin, A. De Loof and L. Schoofs.
Purification of toxic compounds from Larvae of the Gray Fleshfly: the identification of paralysins.
Biochem. Biophys. Res. Commun. 246, 457-462 (1998).
L. Huysmans, L. Nizigiyimana, H. Van den Heuvel and M. Claeys.
L. Huysmans, L. Nizigiyimana, H. Van den Heuvel and M. Claeys.