J M Geuns

Summary

Affiliation: Katholieke Universiteit Leuven
Country: Belgium

Publications

  1. ncbi request reprint Stevioside
    Jan M C Geuns
    Laboratory of Plant Physiology, Catholic University of Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Phytochemistry 64:913-21. 2003
  2. ncbi request reprint Metabolism of stevioside by healthy subjects
    Jan M C Geuns
    Laboratory of Functional Biology, KULeuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Exp Biol Med (Maywood) 232:164-73. 2007
  3. ncbi request reprint Comments to the paper by Nunes et al. (2007), Analysis of genotoxic potentiality of stevioside by comet assay, Food and Chemical Toxicology 45 (2007) 662-666
    Jan M C Geuns
    Food Chem Toxicol 45:2601-2; author reply 2603-4. 2007
  4. ncbi request reprint Apical dominance in Pssu-ipt-transformed tobacco
    J M Geuns
    Laboratory of Plant Physiology, Kasteelpark Arenberg 31, B 3001, Leuven, Belgium
    Phytochemistry 58:911-21. 2001
  5. ncbi request reprint Metabolism of stevioside by chickens
    Jan M C Geuns
    Laboratory of Plant Physiology, Kasteelpark Arenberg 31, Katholieke Universiteit Leuven, B 3001 Leuven, Belgium
    J Agric Food Chem 51:1095-101. 2003
  6. ncbi request reprint Effect of stevioside and steviol on the developing broiler embryos
    Jan M C Geuns
    Lab Plant Physiology, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 51:5162-7. 2003
  7. ncbi request reprint Metabolism of stevioside in pigs and intestinal absorption characteristics of stevioside, rebaudioside A and steviol
    Jan M C Geuns
    Laboratory of Plant Physiology, Catholic University of Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Food Chem Toxicol 41:1599-607. 2003
  8. ncbi request reprint Steviol quantification at the picomole level by high-performance liquid chromatography
    Veerle J Y Minne
    Laboratory of Plant Physiology, Katholieke Universiteit Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 52:2445-9. 2004
  9. doi request reprint Stevioside inhibits atherosclerosis by improving insulin signaling and antioxidant defense in obese insulin-resistant mice
    B Geeraert
    Atherosclerosis and Metabolism Unit, Department of Cardiovascular Diseases and Leuven Food Science and Nutrition Research Centre, Katholieke Universiteit Leuven, Leuven, Belgium
    Int J Obes (Lond) 34:569-77. 2010
  10. ncbi request reprint Identification of steviol glucuronide in human urine
    Jan M C Geuns
    Laboratory of Functional Biology, KULeuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 54:2794-8. 2006

Collaborators

Detail Information

Publications11

  1. ncbi request reprint Stevioside
    Jan M C Geuns
    Laboratory of Plant Physiology, Catholic University of Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Phytochemistry 64:913-21. 2003
    ..It is suited for both diabetics, and PKU patients, as well as for obese persons intending to lose weight by avoiding sugar supplements in the diet. No allergic reactions to it seem to exist...
  2. ncbi request reprint Metabolism of stevioside by healthy subjects
    Jan M C Geuns
    Laboratory of Functional Biology, KULeuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Exp Biol Med (Maywood) 232:164-73. 2007
    ..No other steviol derivatives were detected. In feces, besides free steviol, no other steviol metabolites or conjugates were detected. Steviol was excreted as SV glu in urine...
  3. ncbi request reprint Comments to the paper by Nunes et al. (2007), Analysis of genotoxic potentiality of stevioside by comet assay, Food and Chemical Toxicology 45 (2007) 662-666
    Jan M C Geuns
    Food Chem Toxicol 45:2601-2; author reply 2603-4. 2007
  4. ncbi request reprint Apical dominance in Pssu-ipt-transformed tobacco
    J M Geuns
    Laboratory of Plant Physiology, Kasteelpark Arenberg 31, B 3001, Leuven, Belgium
    Phytochemistry 58:911-21. 2001
    ..This is the first report on the possible involvement of PAs and AAs in apical dominance...
  5. ncbi request reprint Metabolism of stevioside by chickens
    Jan M C Geuns
    Laboratory of Plant Physiology, Kasteelpark Arenberg 31, Katholieke Universiteit Leuven, B 3001 Leuven, Belgium
    J Agric Food Chem 51:1095-101. 2003
    ..No harmful effects were observed in the chronic stevioside supplementation experiments nor in the intubation experiments in which very high stevioside doses were given...
  6. ncbi request reprint Effect of stevioside and steviol on the developing broiler embryos
    Jan M C Geuns
    Lab Plant Physiology, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 51:5162-7. 2003
    ..No stevioside or steviol could be detected in the blood of the hatchlings. The hatchlings developed normally. It is concluded that prenatal exposure to stevioside and steviol is not toxic for the chicken embryo...
  7. ncbi request reprint Metabolism of stevioside in pigs and intestinal absorption characteristics of stevioside, rebaudioside A and steviol
    Jan M C Geuns
    Laboratory of Plant Physiology, Catholic University of Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    Food Chem Toxicol 41:1599-607. 2003
    ....
  8. ncbi request reprint Steviol quantification at the picomole level by high-performance liquid chromatography
    Veerle J Y Minne
    Laboratory of Plant Physiology, Katholieke Universiteit Leuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 52:2445-9. 2004
    ..A sensitive determination of 594 ng of steviol present in 100 mg of dry plant material was performed with high precision and accuracy...
  9. doi request reprint Stevioside inhibits atherosclerosis by improving insulin signaling and antioxidant defense in obese insulin-resistant mice
    B Geeraert
    Atherosclerosis and Metabolism Unit, Department of Cardiovascular Diseases and Leuven Food Science and Nutrition Research Centre, Katholieke Universiteit Leuven, Leuven, Belgium
    Int J Obes (Lond) 34:569-77. 2010
    ..Therefore, we investigated its effects on insulin resistance, inflammation and oxidative stress related to atherosclerosis in obese insulin-resistant mice...
  10. ncbi request reprint Identification of steviol glucuronide in human urine
    Jan M C Geuns
    Laboratory of Functional Biology, KULeuven, Kasteelpark Arenberg 31, B 3001 Leuven, Belgium
    J Agric Food Chem 54:2794-8. 2006
    ..This is the first report on the unambiguous identification of steviol glucuronide in human urine...
  11. ncbi request reprint Uptake and tissue-specific distribution of selected polychlorinated biphenyls in developing chicken embryos
    Johan Maervoet
    Toxicological Center, University of Antwerp, Universiteitsplein 1, B 2610 Wilrijk, Belgium
    Environ Toxicol Chem 24:597-602. 2005
    ..Lipid analysis of the organs suggested that the lipid composition of brain may be an important factor explaining the low PCB accumulation in this tissue...