| Route of administration determines the anxiolytic activity of the flavonols kaempferol, quercetin and myricetin—are they prodrugs? C Vissiennon, K Nieber, O Kelber, V Butterweck The Journal of nutritional biochemistry 23 (7), 733-740, 2012 | 165 | 2012 |
| Mechanisms involved in the anti-inflammatory effect of a standardized willow bark extract MT Khayyal, MA El-Ghazaly, DM Abdallah, SN Okpanyi, O Kelber, ... Arzneimittelforschung 55 (11), 677-687, 2005 | 112 | 2005 |
| Anti-inflammatory effects of the willow bark extract STW 33-I (Proaktiv®) in LPS-activated human monocytes and differentiated macrophages GA Bonaterra, EU Heinrich, O Kelber, D Weiser, J Metz, R Kinscherf Phytomedicine 17 (14), 1106-1113, 2010 | 109 | 2010 |
| Binding of STW 5 (Iberogast®) and its components to intestinal 5-HT, muscarinic M3, and opioid receptors U Simmen, O Kelber, SN Okpanyi, R Jaeggi, B Bueter, D Weiser Phytomedicine 13, 51-55, 2006 | 102 | 2006 |
| Spasmolytic and tonic effect of Iberogast®(STW 5) in intestinal smooth muscle HPT Ammon, O Kelber, SN Okpanyi Phytomedicine 13, 67-74, 2006 | 99 | 2006 |
| Lemon balm extract causes potent antihyperglycemic and antihyperlipidemic effects in insulin‐resistant obese mice C Weidner, SJ Wowro, A Freiwald, V Kodelja, H Abdel‐Aziz, O Kelber, ... Molecular nutrition & food research 58 (4), 903-907, 2014 | 82 | 2014 |
| Antidiabetic effects of chamomile flowers extract in obese mice through transcriptional stimulation of nutrient sensors of the peroxisome proliferator-activated receptor (PPAR … C Weidner, SJ Wowro, M Rousseau, A Freiwald, V Kodelja, H Abdel-Aziz, ... PloS one 8 (11), e80335, 2013 | 82 | 2013 |
| The herbal preparation STW5 (lberogast®) has potent and region‐specific effects on gastric motility B Hohenester, A Rühl, O Kelber, M Schemann Neurogastroenterology & Motility 16 (6), 765-773, 2004 | 82 | 2004 |
| Mechanisms involved in the gastro-protective effect of STW 5 (Iberogast®) and its components against ulcers and rebound acidity MT Khayyal, M Seif-El-Nasr, MA El-Ghazaly, SN Okpanyi, O Kelber, ... Phytomedicine 13, 56-66, 2006 | 78 | 2006 |
| Mechanism of St. John's wort extract (STW3-VI) during chronic restraint stress is mediated by the interrelationship of the immune, oxidative defense, and neuroendocrine system O Grundmann, Y Lv, O Kelber, V Butterweck Neuropharmacology 58 (4-5), 767-773, 2010 | 74 | 2010 |
| Phytotherapy in functional gastrointestinal disorders O Kelber, R Bauer, W Kubelka Digestive Diseases 35 (S1), 36-42, 2017 | 72 | 2017 |
| Contribution of flavonoids and catechol to the reduction of ICAM-1 expression in endothelial cells by a standardised Willow bark extract A Freischmidt, G Jürgenliemk, B Kraus, SN Okpanyi, J Müller, O Kelber, ... Phytomedicine 19 (3-4), 245-252, 2012 | 72 | 2012 |
| Use of natural products in gastrointestinal therapies SM Brierley, O Kelber Current opinion in pharmacology 11 (6), 604-611, 2011 | 69 | 2011 |
| Variability in PXR-mediated induction of CYP3A4 by commercial preparations and dry extracts of St. John’s wort U Gödtel-Armbrust, A Metzger, U Kroll, O Kelber, L Wojnowski Naunyn-Schmiedeberg's archives of pharmacology 375 (6), 377-382, 2007 | 68 | 2007 |
| Intestinal spasmolytic effects of STW 5 (Iberogast®) and its components H Heinle, D Hagelauer, U Pascht, O Kelber, D Weiser Phytomedicine 13, 75-79, 2006 | 66 | 2006 |
| Radical scavenging and anti-inflammatory properties of STW 5 (Iberogast®) and its components H Schempp, D Weiser, O Kelber, EF Elstner Phytomedicine 13, 36-44, 2006 | 64 | 2006 |
| STW 5 is effective in dextran sulfate sodium-induced colitis in rats W Wadie, H Abdel-Aziz, HF Zaki, O Kelber, D Weiser, MT Khayyal International journal of colorectal disease 27 (11), 1445-1453, 2012 | 59 | 2012 |
| Antioxidative properties of the gastrointestinal phytopharmaceutical remedy STW 5 (Iberogast®) I Germann, D Hagelauer, O Kelber, B Vinson, S Laufer, D Weiser, ... Phytomedicine 13, 45-50, 2006 | 52 | 2006 |
| The herbal preparation STW 5 (Iberogast®) desensitizes intestinal afferents in the rat small intestine1 CY Liu, MH Müller, J Glatzle, D Weiser, O Kelber, P Enck, D Grundy, ... Neurogastroenterology & Motility 16 (6), 759-764, 2004 | 47 | 2004 |
| Willow bark extract STW 33-I in the long-term treatment of outpatients with rheumatic pain mainly osteoarthritis or back pain B Uehleke, J Müller, R Stange, O Kelber, J Melzer Phytomedicine 20 (11), 980-984, 2013 | 42 | 2013 |
