Die Clematis-Gewächse und ihre Kultur

Von Dr. E. S. Zürn

Die Clematis-Gewächse und ihre Kultur : Fortsetzung statt Schluss

Von Dr. E. S. Zürn

Die Clematis-Gewächse und ihre Kultur : Schluss

Von Dr. E. S. Zürn

Zur Cultur der Clematis

Von Obergärtner Schütz

Ueber Acer Ginale, Ceanothus und Clematis und deren Verwendung bei Gruppenpflanzungen in Gärten

Von August Schütz

Clematis Hendersoni - Waldrebe

AR

Clematis coccinea

AR

Clematis - Waldrebe

AR

Platycodon grandiflorus - Veronica fruticulosa - Clematis campaniflora - Clerodendron dichotomum - Nicandra physaloides

AR

Clematis hybrida - Clematis fusca - Dicentra formosa

AR

Monographie der Gattung Clematis.

"Separatabzug aus den Verhandlungen des Botanischen Vereins der Provinz Brandenburg. XXVI."

Inhibition of COXs and 5-LOX and activation of PPARs by Australian Clematis species (Ranunculaceae)

The species of Clematis (Ranunculaceae) have been traditionally used for inflammatory conditions by indigenous Australians. We have previously reported that the ethanol extract of Clematis pickeringii inhibited COX-1. In this study, we examined the ethanol extracts and fractions of three Clematis species, Clematis pickeringii, Clematis glycinoides and Clematis microphylla, on cyclooxygenase-1 (COX-1), cyclooxygenase-2 (COX-2) and 5-lipoxygenase (5-LOX). We further examined the activating effects on the protein expression of peroxisome proliferator-activated receptor alpha (PPAR alpha) and gamma (PPAR-gamma) in HepG2 cells. The ethanol extracts of three Clematis species inhibited the activities of COX-1, COX-2 and 5-LOX in the different extents. The stem extract of Clematis pickeringii showed the highest inhibitory activities among the three species on COX-1, COX-2 and 5-LOX with the IC50 values of 73.5, 101.2 and 29.3 mu g/mL. One of its fractions also significantly elevated PPAR gamma expression by 173, 280 and 435% and PPAR gamma expression by 140, 228 and 296% at 4, 8 and 16 mu g/mL, respectively. (c) 2005 Elsevier Ireland Ltd. All rights reserved.