Stefan Gafner

Summary

Affiliation: Tom's of Maine
Country: USA

Publications

  1. ncbi Inhibition of [3H]-LSD binding to 5-HT7 receptors by flavonoids from Scutellaria lateriflora
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, P O Box 710, Kennebunk, Maine 04043, USA
    J Nat Prod 66:535-7. 2003
  2. ncbi Analysis of macamides in samples of Maca (Lepidium meyenii) by HPLC-UV-MS/MS
    Megan M McCollom
    Tom s of Maine, Kennebunk, ME 04043, USA
    Phytochem Anal 16:463-9. 2005
  3. doi Isoflavonoids and coumarins from Glycyrrhiza uralensis: antibacterial activity against oral pathogens and conversion of isoflavans into isoflavan-quinones during purification
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, Kennebunk, Maine 04043, USA
    J Nat Prod 74:2514-9. 2011
  4. ncbi Analysis of Scutellaria lateriflora and its adulterants Teucrium canadense and Teucrium chamaedrys by LC-UV/MS, TLC, and digital photomicroscopy
    Stefan Gafner
    Tom s of Maine, PO Box 710, Kennebunk, ME 04043, USA
    J AOAC Int 86:453-60. 2003
  5. ncbi Evaluation of the efficiency of three different solvent systems to extract triterpene saponins from roots of Panax quinquefolius using high-performance liquid chromatography
    Stefan Gafner
    Tom s of Maine, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 52:1546-50. 2004
  6. ncbi Alkaloids from Eschscholzia californica and their capacity to inhibit binding of [3H]8-Hydroxy-2-(di-N-propylamino)tetralin to 5-HT1A receptors in Vitro
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, Kennebunk, Maine 04043, USA
    J Nat Prod 69:432-5. 2006
  7. ncbi Comparison of the chemical composition of extracts from Scutellaria lateriflora using accelerated solvent extraction and supercritical fluid extraction versus standard hot water or 70% ethanol extraction
    Chantal Bergeron
    Tom s of Maine, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 53:3076-80. 2005
  8. ncbi Stabilization of caffeic acid derivatives in Echinacea purpurea L. glycerin extract
    Chantal Bergeron
    Tom s of Maine, 302 Lafayette Center, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 50:3967-70. 2002
  9. doi Deodorant effects of a supercritical hops extract: antibacterial activity against Corynebacterium xerosis and Staphylococcus epidermidis and efficacy testing of a hops/zinc ricinoleate stick in humans through the sensory evaluation of axillary deodorancy
    Elizabeth R Dumas
    Tom s of Maine, Lafayette Center, Kennebunk, Maine, USA
    J Cosmet Dermatol 8:197-204. 2009
  10. ncbi Biologic evaluation of curcumin and structural derivatives in cancer chemoprevention model systems
    Stefan Gafner
    Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
    Phytochemistry 65:2849-59. 2004

Collaborators

Detail Information

Publications11

  1. ncbi Inhibition of [3H]-LSD binding to 5-HT7 receptors by flavonoids from Scutellaria lateriflora
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, P O Box 710, Kennebunk, Maine 04043, USA
    J Nat Prod 66:535-7. 2003
    ..Scutellarin and ikonnikoside I showed the highest inhibition of [(3)H]-LSD binding with IC(50) values of 63.4 and 135.1 microM, respectively...
  2. ncbi Analysis of macamides in samples of Maca (Lepidium meyenii) by HPLC-UV-MS/MS
    Megan M McCollom
    Tom s of Maine, Kennebunk, ME 04043, USA
    Phytochem Anal 16:463-9. 2005
    ..Total macamides have been quantified by HPLC-UV in plant material from different vendors using n-benzylhexadecanamide as an external standard. The amount of macamides in the dried plant material ranged from 0.0016 to 0.0123%...
  3. doi Isoflavonoids and coumarins from Glycyrrhiza uralensis: antibacterial activity against oral pathogens and conversion of isoflavans into isoflavan-quinones during purification
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, Kennebunk, Maine 04043, USA
    J Nat Prod 74:2514-9. 2011
    ..5 μg/mL for 2). Only 1 moderately inhibited growth of Fusobacterium nucleatum at the highest concentration tested (10 μg/mL)...
  4. ncbi Analysis of Scutellaria lateriflora and its adulterants Teucrium canadense and Teucrium chamaedrys by LC-UV/MS, TLC, and digital photomicroscopy
    Stefan Gafner
    Tom s of Maine, PO Box 710, Kennebunk, ME 04043, USA
    J AOAC Int 86:453-60. 2003
    ..canadense, whereas the waxy cuticle with numerous glandular scales is found in T. chamaedrys. These cell structures were used to determine the adulteration of S. lateriflora crude herb with either of the two Teucrium species...
  5. ncbi Evaluation of the efficiency of three different solvent systems to extract triterpene saponins from roots of Panax quinquefolius using high-performance liquid chromatography
    Stefan Gafner
    Tom s of Maine, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 52:1546-50. 2004
    ..Storage of the extracts at 25 degrees C over the period of a year led to a 13-15% loss of saponins with all three types of extractions...
  6. ncbi Alkaloids from Eschscholzia californica and their capacity to inhibit binding of [3H]8-Hydroxy-2-(di-N-propylamino)tetralin to 5-HT1A receptors in Vitro
    Stefan Gafner
    Tom s of Maine, 302 Lafayette Center, Kennebunk, Maine 04043, USA
    J Nat Prod 69:432-5. 2006
    ....
  7. ncbi Comparison of the chemical composition of extracts from Scutellaria lateriflora using accelerated solvent extraction and supercritical fluid extraction versus standard hot water or 70% ethanol extraction
    Chantal Bergeron
    Tom s of Maine, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 53:3076-80. 2005
    ..However, the results obtained for total flavonoids were not significatively superior to hot water extraction or 70% aqueous EtOH extract...
  8. ncbi Stabilization of caffeic acid derivatives in Echinacea purpurea L. glycerin extract
    Chantal Bergeron
    Tom s of Maine, 302 Lafayette Center, P O Box 710, Kennebunk, Maine 04043, USA
    J Agric Food Chem 50:3967-70. 2002
    ..2-O-Feruloyl-tartaric acid was stable during the whole testing period. All antioxidant treatments greatly improved the stability of caffeic acid derivatives. Stability was dependent upon the concentration of antioxidant added...
  9. doi Deodorant effects of a supercritical hops extract: antibacterial activity against Corynebacterium xerosis and Staphylococcus epidermidis and efficacy testing of a hops/zinc ricinoleate stick in humans through the sensory evaluation of axillary deodorancy
    Elizabeth R Dumas
    Tom s of Maine, Lafayette Center, Kennebunk, Maine, USA
    J Cosmet Dermatol 8:197-204. 2009
    ....
  10. ncbi Biologic evaluation of curcumin and structural derivatives in cancer chemoprevention model systems
    Stefan Gafner
    Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL 60612, USA
    Phytochemistry 65:2849-59. 2004
    ..Most potent effects were at concentrations between 1 and 5 microM for 10, 13 and 21, and at 10 microM for curcumin. These data demonstrate the substitution pattern on the aromatic moiety is especially crucial for activity...
  11. ncbi A licorice extract reduces lipopolysaccharide-induced proinflammatory cytokine secretion by macrophages and whole blood
    Charles Bodet
    Research Group in Oral Ecology, Faculty of Dentistry, Laval University, Quebec City, Quebec, Canada
    J Periodontol 79:1752-61. 2008
    ..In this study, we tested whether a carbon dioxide-supercritical extract of Glycyrrhiza uralensis (licorice) can reduce the periodontopathogen-induced inflammatory response...