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Renger Witkamp

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Michiel G J Balvers; Renger F Witkamp; Heleen Wortelboer; Kitty C M Verhoeckx
Liquid chromatography-tandem mass spectrometry analysis of free and esterified fatty acid N-acyl ethanolamines in plasma and blood cells.
Michiel G J Balvers; Jocelijn Meijerink; Kitty C M Verhoeckx; Heleen Wortelboer; Renger F Witkamp
Measurement of palmitoylethanolamide and other N-acylethanolamines during physiological and pathological conditions.
Trudy Voortman; Renger F Witkamp; Henk F.J. Hendriks; Heleen Wortelboer
Effects of long- and short-chain fatty acids on the release of gastrointestinal hormones using an ex vivo porcine intestinal tissue model.

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2013: Michiel G J Balvers; Renger F Witkamp; Heleen Wortelboer; Kitty C M Verhoeckx
Liquid chromatography-tandem mass spectrometry analysis of free and esterified fatty acid N-acyl ethanolamines in plasma and blood cells.
Analytical biochemistry 2013;434(2):275-83.
2013: Michiel G J Balvers; Jocelijn Meijerink; Kitty C M Verhoeckx; Heleen Wortelboer; Renger F Witkamp
Measurement of palmitoylethanolamide and other N-acylethanolamines during physiological and pathological conditions.
CNS & neurological disorders drug targets 2013;12(1):23-33.
2012: Trudy Voortman; Renger F Witkamp; Henk F.J. Hendriks; Heleen Wortelboer
Effects of long- and short-chain fatty acids on the release of gastrointestinal hormones using an ex vivo porcine intestinal tissue model.
Journal of agricultural and food chemistry 2012;60(36):9035-42.
2012: Michel M Joosten; Linette Pellis; Marjan J van Erk; Renger F Witkamp; Henk F.J. Hendriks
Moderate alcohol consumption alters both leucocyte gene expression profiles and circulating proteins related to immune response and lipid metabolism in men.
The British journal of nutrition 2012;108(4):620-7.
2012: Michiel G J Balvers; Sabina Bijlsma; Jocelijn Meijerink; Carina M Rubingh; Kitty C M Verhoeckx; Heleen Wortelboer; Renger F Witkamp
Time-dependent effect of in vivo inflammation on eicosanoid and endocannabinoid levels in plasma, liver, ileum and adipose tissue in C57BL/6 mice fed a fish-oil diet.
International immunopharmacology 2012;13(2):204-14.
2012: Heng Wei; Renger F Witkamp; Suzan Wopereis; Guowang Xu; Marco Vennik; Elwin Verheij; Mei Wang; Jildau Bouwman; Thomas Hankemeier; Louis M Havekes; Chunxiu Hu; Henrie A A J Korthout; Raymond Ramaker; Theo H Reijmers; Anita M van den Hoek; Jan van der Greef
Lipidomics reveals multiple pathway effects of a multi-components preparation on lipid biochemistry in ApoE*3Leiden.CETP mice.
PloS one 2012;7(1):e30332.
2011: Kitty C M Verhoeckx; Trudy Voortman; Michiel G J Balvers; Henk F.J. Hendriks; Heleen M Wortelboer; Renger F Witkamp
Presence, formation and putative biological activities of N-acyl serotonins, a novel class of fatty-acid derived mediators, in the intestinal tract.
Biochimica et biophysica acta 2011;1811(10):578-86.
2011: Hans K Biesalski; Jeffrey Blumberg; Robert P Heaney; Jeya Henry; John M Nolan; David P Richardson; Ger T Rijkers; Ben van Ommen; Renger F Witkamp; Peter J Aggett; Robert Anton; Paul S Bernstein; Iris Zöllner
26th Hohenheim Consensus Conference, September 11, 2010 Scientific substantiation of health claims: evidence-based nutrition.
Nutrition (Burbank, Los Angeles County, Calif.) 2011;27(10 Suppl):S1-20.
2011: Michel M Joosten; Renger F Witkamp; Henk F.J. Hendriks
Alterations in total and high-molecular-weight adiponectin after 3 weeks of moderate alcohol consumption in premenopausal women.
Metabolism: clinical and experimental 2011;60(8):1058-63.
2011: Renger F Witkamp
Current and future drug targets in weight management.
Pharmaceutical research 2011;28(8):1792-818.
2011: Arnoud Carol; Renger F Witkamp; Harry J Wichers; Marco Mensink
Bovine colostrum supplementation's lack of effect on immune variables during short-term intense exercise in well-trained athletes.
International journal of sport nutrition and exercise metabolism 2011;21(2):135-45.
2011: Niki A Georgiou; Johan Garssen; Renger F Witkamp
Pharma-nutrition interface: the gap is narrowing.
European journal of pharmacology 2011;651(1-3):1-8.
2010: Michiel G J Balvers; Kitty C M Verhoeckx; Pierluigi Plastina; Heleen Wortelboer; Jocelijn Meijerink; Renger F Witkamp
Docosahexaenoic acid and eicosapentaenoic acid are converted by 3T3-L1 adipocytes to N-acyl ethanolamines with anti-inflammatory properties.
Biochimica et biophysica acta 2010;1801(10):1107-14.
2010: Michel M Joosten; Cees de Graaf; Annemarie Rietman; Renger F Witkamp; Henk F.J. Hendriks
Short-term oral exposure to white wine transiently lowers serum free fatty acids.
Appetite 2010;55(1):124-9.
2010: Saskia T J van Cruchten; Laura H J De Haan; Patrick P J Mulder; Cindy Kunne; Mark V Boekschoten; Martijn B Katan; Jac M M J G Aarts; Renger F Witkamp
The role of epoxidation and electrophile-responsive element-regulated gene transcription in the potentially beneficial and harmful effects of the coffee components cafestol and kahweol.
The Journal of nutritional biochemistry 2010;21(8):757-63.
2010: Michel M Joosten; Michiel Gj Balvers; Kitty Cm Verhoeckx; Henk F.J. Hendriks; Renger F Witkamp
Plasma anandamide and other N-acylethanolamines are correlated with their corresponding free fatty acid levels under both fasting and non-fasting conditions in women.
Nutrition & metabolism 2010;7():49.
2009: Elvira Lupinacci; Jocelijn Meijerink; Jean-Paul Vincken; Bartolo Gabriele; Harry Gruppen; Renger F Witkamp
Xanthohumol from hop (Humulus lupulus L.) is an efficient inhibitor of monocyte chemoattractant protein-1 and tumor necrosis factor-alpha release in LPS-stimulated RAW 264.7 mouse macrophages and U937 human monocytes.
Journal of agricultural and food chemistry 2009;57(16):7274-81.
2009: Michiel G J Balvers; Kitty C M Verhoeckx; Renger F Witkamp
Development and validation of a quantitative method for the determination of 12 endocannabinoids and related compounds in human plasma using liquid chromatography-tandem mass spectrometry.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences 2009;877(14-15):1583-90.
2006: Kitty C M Verhoeckx; Henrie A A J Korthout; A P van Meeteren-Kreikamp; Karl A Ehlert; Mei Wang; Jan van der Greef; Richard J T Rodenburg; Renger F Witkamp
Unheated Cannabis sativa extracts and its major compound THC-acid have potential immuno-modulating properties not mediated by CB1 and CB2 receptor coupled pathways.
International immunopharmacology 2006;6(4):656-65.
2006: Kitty C M Verhoeckx; Robert P Doornbos; Renger F Witkamp; Jan van der Greef; Richard J T Rodenburg
Beta-adrenergic receptor agonists induce the release of granulocyte chemotactic protein-2, oncostatin M, and vascular endothelial growth factor from macrophages.
International immunopharmacology 2006;6(1):1-7.
2005: Kitty C M Verhoeckx; Robert P Doornbos; Jan van der Greef; Renger F Witkamp; Richard J T Rodenburg
Inhibitory effects of the beta-adrenergic receptor agonist zilpaterol on the LPS-induced production of TNF-alpha in vitro and in vivo.
Journal of veterinary pharmacology and therapeutics 2005;28(6):531-7.
2005: Kitty C M Verhoeckx; Marco Gaspari; Sabina Bijlsma; Jan van der Greef; Renger F Witkamp; Robert P Doornbos; Richard J T Rodenburg
In search of secreted protein biomarkers for the anti-inflammatory effect of beta2-adrenergic receptor agonists: application of DIGE technology in combination with multivariate and univariate data analysis tools.
Journal of proteome research 2005;4(6):2015-23.
2005: Mei Wang; Robert-Jan A N Lamers; Henrie A A J Korthout; Joop H J van Nesselrooij; Renger F Witkamp; Robert van der Heijden; Peter J Voshol; Louis M Havekes; Rob Verpoorte; Jan van der Greef
Metabolomics in the context of systems biology: bridging traditional Chinese medicine and molecular pharmacology.
Phytotherapy research : PTR 2005;19(3):173-82.
2004: Kitty C M Verhoeckx; Sabina Bijlsma; Sonja Jespersen; Raymond Ramaker; Elwin Verheij; Renger F Witkamp; Jan van der Greef; Richard J T Rodenburg
Characterization of anti-inflammatory compounds using transcriptomics, proteomics, and metabolomics in combination with multivariate data analysis.
International immunopharmacology 2004;4(12):1499-514.
2004: Kitty C M Verhoeckx; Sabina Bijlsma; Els M de Groene; Renger F Witkamp; Jan van der Greef; Richard J T Rodenburg
A combination of proteomics, principal component analysis and transcriptomics is a powerful tool for the identification of biomarkers for macrophage maturation in the U937 cell line.
Proteomics 2004;4(4):1014-28.
2002: Hans Wolkers; Ivan C Burkow; Mike O Hammill; Christian Lydersen; Renger F Witkamp
Transfer of polychlorinated biphenyls and chlorinated pesticides from mother to pup in relation to cytochrome P450 enzyme activities in harp seals (Phoca groenlandica) from the gulf of St. Lawrence, Canada.
Environmental toxicology and chemistry / SETAC 2002;21(1):94-101.
2001: B M Blankvoort; Els M de Groene; A P van Meeteren-Kreikamp; Renger F Witkamp; Richard J T Rodenburg; Jac M M J G Aarts
Development of an androgen reporter gene assay (AR-LUX) utilizing a human cell line with an endogenously regulated androgen receptor.
Analytical biochemistry 2001;298(1):93-102.
2001: Kasper H N Hoebe; N Gonzalez-Ramon; Sandra Nijmeijer; Renger F Witkamp; L A M G van Leengoed; A S J P A M Van Miert; Mario Monshouwer
Differential effects of pentoxifylline on the hepatic inflammatory response in porcine liver cell cultures. Increase in inducible nitric oxide synthase expression.
Biochemical pharmacology 2001;61(9):1137-44.
2001: S A Meenagh; Christopher T Elliott; Robert Buick; CA Izeboud; Renger F Witkamp
The preparation, solubilisation and binding characteristics of a beta 2-adrenoceptor isolated from transfected Chinese hamster cells.
The Analyst 2001;126(4):491-4.
2001: Kasper H N Hoebe; Renger F Witkamp; Johanna Fink-Gremmels; A S J P A M Van Miert; Mario Monshouwer
Direct cell-to-cell contact between Kupffer cells and hepatocytes augments endotoxin-induced hepatic injury.
American journal of physiology. Gastrointestinal and liver physiology 2001;280(4):G720-8.
2000: CA Izeboud; R M Vermeulen; A Zwart; H P Voss; A S J P A M Van Miert; Renger F Witkamp
Stereoselectivity at the beta2-adrenoceptor on macrophages is a major determinant of the anti-inflammatory effects of beta2-agonists.
Naunyn-Schmiedeberg's archives of pharmacology 2000;362(2):184-9.
2000: CA Izeboud; Mario Monshouwer; Renger F Witkamp; A S J P A M Van Miert
Suppression of the acute inflammatory response of porcine alveolar- and liver macrophages.
The Veterinary quarterly 2000;22(1):26-30.
2000: Kasper H N Hoebe; Mario Monshouwer; Renger F Witkamp; Johanna Fink-Gremmels; A S J P A M Van Miert
Cocultures of porcine hepatocytes and Kupffer cells as an improved in vitro model for the study of hepatotoxic compounds.
The Veterinary quarterly 2000;22(1):21-5.
2000: Mario Monshouwer; Renger F Witkamp
Cytochromes and cytokines: changes in drug disposition in animals during an acute phase response: a mini-review.
The Veterinary quarterly 2000;22(1):17-20.
2000: Renger F Witkamp; Mario Monshouwer
Signal transduction in inflammatory processes, current and future therapeutic targets: a mini review.
The Veterinary quarterly 2000;22(1):11-6.
1999: CA Izeboud; Mario Monshouwer; A S J P A M Van Miert; Renger F Witkamp
The beta-adrenoceptor agonist clenbuterol is a potent inhibitor of the LPS-induced production of TNF-alpha and IL-6 in vitro and in vivo.
Inflammation research : official journal of the European Histamine Research Society ... [et al.] 1999;48(9):497-502.
1999: M Van Puymbroeck; ME Kuilman; Roel Maas-Bakker; Renger F Witkamp; L Leyssens; A S J P A M Van Miert; L Hendriks; Dirk Vanderzande; Peter Adriaensens; M P Jacobs; J Raus
17alpha-ethyl-5beta-estrane-3alpha, 17beta-diol, a biological marker for the abuse of norethandrolone and ethylestrenol in slaughter cattle.
Journal of chromatography. B, Biomedical sciences and applications 1999;728(2):217-32.
1999: WM Zweers-Zeilmaker; A S J P A M Van Miert; GJ Horbach; Renger F Witkamp
In vitro complex formation and inhibition of hepatic cytochrome P450 activity by different macrolides and tiamulin in goats and cattle.
Research in veterinary science 1999;66(1):51-5.
1999: CA Izeboud; J A Mocking; Mario Monshouwer; A S J P A M Van Miert; Renger F Witkamp
Participation of beta-adrenergic receptors on macrophages in modulation of LPS-induced cytokine release.
Journal of receptor and signal transduction research 1999;19(1-4):191-202.
1998: Mario Monshouwer; G A Van't Klooster; Sandra Nijmeijer; Renger F Witkamp; A S J P A M Van Miert
Characterization of cytochrome P450 isoenzymes in primary cultures of pig hepatocytes.
Toxicology in vitro : an international journal published in association with BIBRA 1998;12(6):715-23.
1998: M Van Puymbroeck; ME Kuilman; Roel Maas-Bakker; Renger F Witkamp; L Leyssens; Dirk Vanderzande; Jan Gelan; J Raus
Identification of some important metabolites of boldenone in urine and feces of cattle by gas chromatography-mass spectrometry.
The Analyst 1998;123(12):2681-86.
1998: M Van Puymbroeck; ME Kuilman; Roel Maas-Bakker; Renger F Witkamp; L Leyssens; Dirk Vanderzande; Jan Gelan; J Raus
In vitro liver models are important tools to monitor the abuse of anabolic steroids in cattle.
The Analyst 1998;123(12):2453-6.
1998: J Wolkers; Ivan C Burkow; Christian Lydersen; S Dahle; Mario Monshouwer; Renger F Witkamp
Congener specific PCB and polychlorinated camphene (toxaphene) levels in Svalbard ringed seals (Phoca hispida) in relation to sex, age, condition and cytochrome P450 enzyme activity.
The Science of the total environment 1998;216(1-2):1-11.
1998: WM Zweers-Zeilmaker; GJ Horbach; Renger F Witkamp
Effects of non steroidal anti-inflammatory drugs and sulfonamides on hepatic cytochrome P4502C activity in vitro in goats and cattle.
Journal of veterinary pharmacology and therapeutics 1998;21(2):154-7.
1997: WM Zweers-Zeilmaker; S Wildschut; Renger F Witkamp; A S J P A M Van Miert
The effect of sulfaphenazole and sulfadoxine on tolbutamide disposition in dwarf goats (Caprus hircus aegagrus).
Research in veterinary science 1997;63(3):269-72.
1997: WM Zweers-Zeilmaker; GJ Horbach; Renger F Witkamp
Differential inhibitory effects of phenytoin, diclofenac, phenylbutazone and a series of sulfonamides on hepatic cytochrome P4502C activity in vitro, and correlation with some molecular descriptors in the dwarf goat (Caprus hircus aegagrus).
Xenobiotica; the fate of foreign compounds in biological systems 1997;27(8):769-80.
1997: M Natsuhori; D Ten Berge; A S J P A M Van Miert; M van Raak; Renger F Witkamp; WM Zweers-Zeilmaker; Els M de Groene; L Kleij; M Ligtenberg; GJ Horbach
Isolation of a bovine full length cytochrome P450 (CYP3A) cDNA sequence and its functional expression in V79 cells.
Environmental toxicology and pharmacology 1997;3(1):17-24.
1996: W A Kappers; E M Groene; L A Kleij; Renger F Witkamp; WM Zweers-Zeilmaker; V J Feron; GJ Horbach
Inhibition of tolbutamide 4-methylhydroxylation by a series of non-steroidal anti-inflammatory drugs in V79-NH cells expressing human cytochrome P4502C10.
Xenobiotica; the fate of foreign compounds in biological systems 1996;26(12):1231-9.
1996: WM Zweers-Zeilmaker; J Batzias; Roel Maas-Bakker; GJ Horbach; A S J P A M Van Miert; Renger F Witkamp
In vitro and in vivo oxidative biotransformation in the West-African dwarf goat (Caprus hircus aegagrus): substrate activities and effects of inducers.
Xenobiotica; the fate of foreign compounds in biological systems 1996;26(11):1131-41.
1996: Mario Monshouwer; R Ashley McLellan; E Delaporte; Renger F Witkamp; A S J P A M Van Miert; Kenneth W Renton
Differential effect of pentoxifylline on lipopolysaccharide-induced downregulation of cytochrome P450.
Biochemical pharmacology 1996;52(8):1195-200.
1996: Mario Monshouwer; Renger F Witkamp; S M Nijmeijer; L A M G van Leengoed; H C Vernooy; J H M Verheijden; A S J P A M Van Miert
A lipopolysaccharide-induced acute phase response in the pig is associated with a decrease in hepatic cytochrome P450-mediated drug metabolism.
Journal of veterinary pharmacology and therapeutics 1996;19(5):382-88.
1996: WM Zweers-Zeilmaker; Roel Maas-Bakker; GJ Horbach; A S J P A M Van Miert; Renger F Witkamp
Cytochrome P4502E in vivo and in vitro in the dwarf goat: effects of enzyme induction and the applicability of chlorzoxazone as marker substrate.
Journal of veterinary pharmacology and therapeutics 1996;19(3):245-50.
1996: Mario Monshouwer; Renger F Witkamp; S M Nujmeijer; J G C van Amsterdam; A S J P A M Van Miert
Suppression of cytochrome P450- and UDP glucuronosyl transferase-dependent enzyme activities by proinflammatory cytokines and possible role of nitric oxide in primary cultures of pig hepatocytes.
Toxicology and applied pharmacology 1996;137(2):237-44.
1996: Renger F Witkamp; S M Nijmeijer; A S J P A M Van Miert
Cytochrome P-450 complex formation in rat liver by the antibiotic tiamulin.
Antimicrobial agents and chemotherapy 1996;40(1):50-4.
1995: E M De Groene; S M Nijmeijer; GJ Horbach; Renger F Witkamp
Tiamulin inhibits human CYP3A4 activity in an NIH/3T3 cell line stably expressing CYP3A4 cDNA.
Biochemical pharmacology 1995;50(6):771-3.
1995: J Lewicki; Roel Maas-Bakker; Renger F Witkamp; A S J P A M Van Miert
Oral bioavailability and pharmacokinetics of baquiloprim in dwarf goats.
Research in veterinary science 1995;58(3):268-71.
1995: Renger F Witkamp; S M Nijmeijer; Mario Monshouwer; A S J P A M Van Miert
The antibiotic tiamulin is a potent inducer and inhibitor of cytochrome P4503A via the formation of a stable metabolic intermediate complex. Studies in primary hepatocyte cultures and liver microsomes of the pig.
Drug metabolism and disposition: the biological fate of chemicals 1995;23(5):542-7.
1995: Mario Monshouwer; Renger F Witkamp; S M Nijmeijer; A Pijpers; J H M Verheijden; A S J P A M Van Miert
Selective effects of a bacterial infection (Actinobacillus pleuropneumoniae) on the hepatic clearances of caffeine, antipyrine, paracetamol, and indocyanine green in the pig.
Xenobiotica; the fate of foreign compounds in biological systems 1995;25(5):491-9.
1995: Mario Monshouwer; Renger F Witkamp; S M Nijmeijer; L A M G van Leengoed; J H M Verheijden; A S J P A M Van Miert
Infection (Actinobacillus pleuropneumoniae)-mediated suppression of oxidative hepatic drug metabolism and cytochrome P4503A mRNA levels in pigs.
Drug metabolism and disposition: the biological fate of chemicals 1995;23(1):44-7.
1994: Renger F Witkamp; S M Nijmeijer; G Csikó; A S J P A M Van Miert
Tiamulin selectively inhibits oxidative hepatic steroid and drug metabolism in vitro in the pig.
Journal of veterinary pharmacology and therapeutics 1994;17(4):317-22.
1994: Mario Monshouwer; Renger F Witkamp; A Pijpers; J H M Verheijden; A S J P A M Van Miert
Dose-dependent pharmacokinetic interaction between antipyrine and paracetamol in vivo and in vitro when administered as a cocktail in pig.
Xenobiotica; the fate of foreign compounds in biological systems 1994;24(4):347-55.
1994: K Weijkamp; S M Faghihi; S M Nijmeijer; Renger F Witkamp; A S J P A M Van Miert
Oral bioavailability of sulphamethoxydiazine, sulphathiazole and sulphamoxole in dwarf goats.
The Veterinary quarterly 1994;16(1):33-7.
1993: Renger F Witkamp; H J Kolker; S M Nijmeijer; J Noordhoek; A S J P A M Van Miert
Selective changes in oxidative xenobiotic metabolism in vivo and in vitro after parenteral administration of recombinant bovine somatotrophin to rats.
Research in veterinary science 1993;55(1):31-7.
1993: Renger F Witkamp; S M Nijmeijer; H J Kolker; J Noordhoek; A S J P A M Van Miert
Effect of gonadal hormones on the plasma clearance and metabolite formation of antipyrine in the dwarf goat.
Journal of veterinary pharmacology and therapeutics 1993;16(2):164-73.
1993: Renger F Witkamp; S M Nijmeijer; H Yun; J Noordhoek; A S J P A M Van Miert
Sulfamethazine as a model compound to assess sex hormone-dependent cytochrome P-450 activity in rats.
Drug metabolism and disposition: the biological fate of chemicals 1993;21(3):441-6.
1993: Renger F Witkamp; S M Nijmeijer; W C Mennes; A W Rozema; J Noordhoek; A S J P A M Van Miert
Regioselective O-demethylation of scoparone (6,7-dimethoxycoumarin) to assess cytochrome P450 activities in vitro in rat. Effects of gonadal steroids and the involvement of constitutive P450 enzymes.
Xenobiotica; the fate of foreign compounds in biological systems 1993;23(4):401-10.
1993: Renger F Witkamp; Gerben van 't Klooster; S M Nijmeijer; H J Kolker; J Noordhoek; A S J P A M Van Miert
Hormonal regulation of oxidative drug metabolism in the dwarf goat. The effect of sex and hormonal treatment on plasma disposition and metabolite formation of sulphadimidine.
Journal of veterinary pharmacology and therapeutics 1993;16(1):55-62.
1993: Renger F Witkamp; S M Nijmeijer; C T Van Duin; J Noordhoek; A S J P A M Van Miert
The regulation of oxidative drug metabolism by growth hormone in the dwarf goat: differences from and similarities to the mechanisms in rats.
The Journal of endocrinology 1993;136(2):313-7.
1992: M Natsuhori; Renger F Witkamp; Gerben van 't Klooster; A S J P A M Van Miert
Metabolism of antipyrine and sulphadimidine in dwarf goats: effects of the enzyme-inducing agents phenobarbital, troleandomycin and rifampicin.
Xenobiotica; the fate of foreign compounds in biological systems 1992;22(11):1243-50.
1992: Renger F Witkamp; H I Yun; G A van't Klooster; J F van Mosel; M van Mosel; J M Ensink; J Noordhoek; A S J P A M Van Miert
Comparative aspects and sex differentiation of plasma sulfamethazine elimination and metabolite formation in rats, rabbits, dwarf goats, and cattle.
American journal of veterinary research 1992;53(10):1830-5.
1992: V N Offiah; S M Nijmeijer; C T van Duin; Renger F Witkamp; A S J P A M Van Miert
Effects of Ehrlichia phagocytophila infection on serum thyroid hormone concentrations and on antipyrine clearance and metabolite formation in dwarf goats.
American journal of veterinary research 1992;53(8):1357-60.
1992: V N Offiah; S M Nijmeijer; C T van Duin; Renger F Witkamp; A S J P A M Van Miert
Effects of triiodothyronine treatment on pharmacokinetic properties and metabolite formation of antipyrine in dwarf goats.
American journal of veterinary research 1992;53(8):1354-6.
1991: Gerben van 't Klooster; P B van Seeventer; H J Kolker; L A Smit; Renger F Witkamp
High-performance liquid chromatographic method for the routine determination of sulphadimidine, its hydroxy metabolites and N4-acetylsulphadimidine in body fluids and cell culture media.
Journal of chromatography 1991;571(1-2):157-68.
1991: Renger F Witkamp; J A Lohuis; S M Nijmeijer; H J Kolker; J Noordhoek; A S J P A M Van Miert
Species- and sex-related differences in the plasma clearance and metabolite formation of antipyrine. A comparative study in four animal species: cattle, goat, rat and rabbit.
Xenobiotica; the fate of foreign compounds in biological systems 1991;21(11):1483-92.
1989: Renger F Witkamp; S M Nijmeijer; C T Van Duin; M M Bevers; Th Wensing; H Van Gogh; A S J P A M Van Miert
Has bovine somatotropin (BST) an effect upon drug disposition? Comparative studies in goats and cattle with sulphadimidine and antipyrine after parenteral administration of BST, zeranol and proligestone.
Journal of veterinary pharmacology and therapeutics 1989;12(2):163-78.