Research Topics
| Ole VangSummaryAffiliation: Roskilde University Location: Roskilde , Denmark Summary: Cellular mechanisms of health promoting substances in human diet. Resveratrol (from grape, berries, peanuts etc) and indoles from cruciferous vegetables. This includes indole-3-carbinol, N-methoxy-indole-3-carbinol and 4-methoxy-indole-3-carbinol). Their efficiency in modulating cell proliferation, cell morphology and cell adhesion are in focus and elucidation of the underlaying signaling mechanisms. Publications
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Detail Information
Publications
Induction of cytochrome P-450IA1, IA2, IIB1, IIB2 and IIE1 by broccoli in rat liver and colonO Vang
Laboratory of Environmental Carcinogenesis, Fibiger Institute, Danish Cancer Society, Copenhagen
Chem Biol Interact 78:85-96. 1991....
Functional food ingredients against colorectal cancer. An example project integrating functional genomics, nutrition and healthR Stierum
TNO Nutrition and Food Research, P.O. Box 360, 3700 AJ Zeist, Netherlands
Nutr Metab Cardiovasc Dis 11:94-8. 2001....
Indolo[3,2-b]carbazole inhibits gap junctional intercellular communication in rat primary hepatocytes and acts as a potential tumor promoterSusan Herrmann
Department of Life Sciences and Chemistry, Roskilde University, DK-4000 Roskilde, Denmark
Carcinogenesis 23:1861-8. 2002..Further studies are needed in order to clarify the anticarcinogenic/carcinogenic effects of I3C and ICZ before high doses of I3C may be recommended as a dietary supplement...
Characterization of the N-methoxyindole-3-carbinol (NI3C)--induced cell cycle arrest in human colon cancer cell linesAntje S Neave
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Toxicol Sci 83:126-35. 2005..These results indicate that both NI3C and I3C inhibit the proliferation of human colon cells but via different mechanisms...
[Recommendation with serious adverse effects]Wojciech Ruminski
Ugeskr Laeger 168:928; author reply 928-9. 2006
Time- and concentration-dependent effects of resveratrol in HL-60 and HepG2 cellsU Stervbo
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Cell Prolif 39:479-93. 2006..Furthermore, resveratrol treatment causes stimulation of apoptosis as well as an increase in nuclear size and granularity...
Characterization of the transcriptional profile in primary astrocytes after oxidative stress induced by ParaquatBirgitte Thuesen Olesen
Department of Science, Systems and Models, Roskilde University, DK 4000 Roskilde, Denmark
Neurotoxicology 29:13-21. 2008..Thus, we could demonstrate a PQ-inducible effect of the mRNA of antioxidative enzymes, as well as the mRNAs of possible enzymes involved in the protection against oxidative stress...
Bioactivities and chemical constituents of a Vietnamese medicinal plant Che Vang, Jasminum subtriplinerve Blume (Oleaceae)Dai Hue Ngan
Department of Chemistry, College of Natural Sciences, National University of Ho Chi Minh City, 227 Nguyen Van Cu St, Dist 5, Ho Chi Minh City, Vietnam
Nat Prod Res 22:942-9. 2008..The data presented here indicate that J. subtriplinerve do contain compounds with interesting biological activity...
Effect of 4-methoxyindole-3-carbinol on the proliferation of colon cancer cells in vitro, when treated alone or in combination with indole-3-carbinolRemy Kronbak
Department of Science, Systems and Models, Roskilde University, Universitetsvej 1, 4000 Roskilde, Denmark
J Agric Food Chem 58:8453-9. 2010..We conclude that 4MeOI3C might play a role in the cancer preventive effect of cruciferous vegetables...
Cytotoxic Coumarins from the Bark of Mammea siamensisNgoc Trang Nhu Ngo
Ho Chi Minh City University of Science, Ho Chi Minh City, Vietnam
Chem Pharm Bull (Tokyo) 58:1487-91. 2010....
[Evidence of dermatological effects of chamomile]Simone Danty Rügge
Institut for Natur, Systemer og Modeller, Roskilde Universitet, Denmark
Ugeskr Laeger 172:3492-6. 2010..The absence of evidence is primarily caused by the design and quality of the studies identified...
What is new for an old molecule? Systematic review and recommendations on the use of resveratrolOle Vang
Department of Science, System and Models, Roskilde University, Roskilde, Denmark
PLoS ONE 6:e19881. 2011..Such recommendations were formulated after the Resveratrol 2010 conference, held in September 2010 in Helsingør, Denmark...
Biochemical effects of dietary intake of different broccoli samples. II. Multivariate analysis of contributions of specific glucosinolates in modulating cytochrome P-450 and antioxidant defense enzyme activitiesO Vang
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Metabolism 50:1130-5. 2001..These results indicate that substances other than glucosinolates in the complex mixtures modulate hepatic EROD, MROD, GSH Px, and GSSG Red activities or that the active glucosinolate metabolites vary in their systemic disposition...
Biochemical effects of dietary intakes of different broccoli samples. I. Differential modulation of cytochrome P-450 activities in rat liver, kidney, and colonO Vang
Department of Life Sciences and Chemistry, Roskilde University, Roskilde, Denmark
Metabolism 50:1123-9. 2001..The different effects depending on the vegetable sample eaten have to be considered in future experiments and dietary recommendations...
Resveratrol reverses tumor-promoter-induced inhibition of gap-junctional intercellular communicationM Nielsen
Department of Chemistry and Life Sciences, Roskilde University, Roskilde, DK 4000, Denmark
Biochem Biophys Res Commun 275:804-9. 2000..In conclusion, resveratrol was found to enhance GJIC and counteract the effects of tumor promoters on GJIC, and this is likely a mechanism that contributes to the antipromotional and anticarcinogenic properties of resveratrol...
Induction of cytochrome P450IA1 in rat colon and liver by indole-3-carbinol and 5,6-benzoflavoneO Vang
Laboratory of Environmental Carcinogenesis Fibiger Institute, Danish Cancer Society, Copenhagen
Carcinogenesis 11:1259-63. 1990..This suggests that one of the protective effects of cruciferous vegetables in the reduction of chemically induced cancer may be regulation of cytochrome P450s involved in the metabolism of the chemical carcinogens...
Inhibition of intercellular communication by condensates of high and low tar cigarettesO Vang
Laboratory of Environmental Carcinogenesis, Fibiger Institute, Danish Cancer Society, Copenhagen
Arch Toxicol 69:415-20. 1995..Furthermore, CSC and CSC fractions synergistically inhibit GJIC with the tumor promoter 12-O-tetradecanoylphorbol-13-acetate, indicating different mechanisms of action...
Cytochrome P450-mediated metabolism of tumour promoters modifies the inhibition of intercellular communication: a modified assay for tumour promotionO Vang
Laboratory of Environmental Carcinogenesis, Fibiger Institute, Danish Cancer Society, Copenhagen
Carcinogenesis 14:2365-71. 1993..The assay also discloses that cytochrome P450 metabolism alters intercellular communication by a mechanism other than metabolism of the exogenous inhibitor...
Bioactivation of 2-amino-1-methyl-6-phenylimidazo[4,5-b]-pyridine by liver microsomes from three different rat strainsL O Dragsted
National Food Agency of Denmark, Søborg
Pharmacol Toxicol 72:388-93. 1993..Except for a significantly higher concentration of P450IA2 in microsomes from control and PCB induced Wistar rats, no major differences between the strains were found...
Effects of dietary broccoli on human in vivo drug metabolizing enzymes: evaluation of caffeine, oestrone and chlorzoxazone metabolismM A Kall
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Carcinogenesis 17:793-9. 1996..On the other hand, the catalytic activity of CYP2E1 is not affected to the same degree by dietary broccoli...
Effects of dietary broccoli on human drug metabolising activityM A Kall
National Food Agency of Denmark, Mørkhøj Bygade, Søborg
Cancer Lett 114:169-70. 1997..The average activity of CYP1A2 and the average 2/16alpha-hydroxyestrone ratio were increased 19% (P < 0.0005) and 29.5% (P < 0.05), respectively; however, no effects were observed on the CYP2E1 activity...
Combined effects of complex mixtures of potentially anti-carcinogenic compounds on antioxidant enzymes and carcinogen metabolizing enzymes in the ratO Vang
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Cancer Lett 114:283-6. 1997..The responses were related to the levels of different specific glucosinolates...
Modulation of drug-metabolising enzyme expression by condensation products of indole-3-ylcarbinol, an inducer in cruciferous vegetablesO Vang
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Pharmacol Toxicol 84:59-65. 1999..Also, the enzyme inducing potency of indole-3-ylcarbinol containing vegetable juice is apparently enhanced by incubation in vitro before the intake...
Modulation of cytochrome P-450 and glutathione S-transferase isoform expression in vivo by intact and degraded indolyl glucosinolatesC Bonnesen
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Nutr Cancer 33:178-87. 1999..Neither CYP 2B1/2 nor 2E1 was induced by the indolyl glucosinolates. None of the hepatic GST subunits analyzed, rGST A1/2, A3, or M3, was induced significantly by the purified indolyl glucosinolates...
Modulation of cytochrome P4501A1 activity by ascorbigen in murine hepatoma cellsP U Stephenson
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Biochem Pharmacol 58:1145-53. 1999..Taken together, the results indicate that ASG inhibits CYP1A1 activity at low concentrations, but induces the same activity at higher concentrations...
N-methoxyindole-3-carbinol is a more efficient inducer of cytochrome P-450 1A1 in cultured cells than indol-3-carbinolP U Stephensen
Department of Life Sciences and Chemistry, Roskilde University, Denmark
Nutr Cancer 36:112-21. 2000..In conclusion, NI3C is a more efficient inducer of CYP 1A1 in cultured cells than I3C but is less active when administered to rodents...
Challenges of translating basic research into therapeutics: resveratrol as an exampleJames M Smoliga
Department of Health and Physical Education, Human Physiology Laboratory, Marywood University, Scranton, Pennsylvania, USA
J Gerontol A Biol Sci Med Sci 67:158-67. 2012..The evidence for benefits of resveratrol in humans remains too sparse to be conclusive; yet, the limited data that are available, combined with a growing list of animal studies, provide a strong justification for further study...
