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Inhibitory effects of oolong tea polyphenols on pancreatic lipase in vitro.
Data suggested that the presence of galloyl moieties within their chemical structures and/or the polymerization of flavan-3-ols were required for enhancement of pancreatic lipase inhibition. Expand
Inhibitory Effects of Oolong Tea Polyphenols on Pancreatic Lipase in Vitro
Fifty-four polyphenols isolated from tea leaves were evaluated for their inhibitory activities against pancreatic lipase, the key enzyme of lipid absorption in the gut. (−)-Epigallocatechin… Expand
Green tea proanthocyanidins inhibit cyclooxygenase-2 expression in LPS-activated mouse macrophages: molecular mechanisms and structure-activity relationship.
- D. Hou, S. Masuzaki, +4 authors Y. Sakata
- Biology, Medicine
- Archives of biochemistry and biophysics
- 1 April 2007
These findings provide the first molecular basis that green tea proanthocyanidins with the galloyl moiety might have anti-inflammatory properties through blocking MAPK-mediated COX-2 expression. Expand
Antioxidant and α-Amylase Inhibitory Compounds from Aerial Parts of Varthemia iphionoides Boiss
Various extracts of aerial parts of Varthemia (Varthemia iphionoides Boiss) were investigated for radical-scavenging activity, antioxidative activity, and porcine pancreas α-amylase inhibitory… Expand
Characterization of cyanic flower color of Delphinium cultivars
A significant reciprocal relationship has been found between brightness and lightness on a CIELAB (Commission Internationale de l'Eclairage) diagram in which flower color ranges from very pale to vivid. Expand
Analysis of Petal Anthocyanins to Investigate Flower Coloration of Zhongyuan (Chinese) and Daikon Island (Japanese) Tree Peony Cultivars
- L. Wang, A. Shiraishi, F. Hashimoto, N. Aoki, K. Shimizu, Y. Sakata
- Journal of Plant Research
- 1 March 2001
Each group consequently specified significant features among CIELAB color notation and petal pigmentation, being adequate to characterize tree peony flowers as similar between Zhongyuan and Daikon Island cultivars, thus the cultivars of the two areas are suggested to be related to one another. Expand
Inhibitory effect of green tea polyphenols on membrane-type 1 matrix metalloproteinase, MT1-MMP.
- N. Oku, M. Matsukawa, +4 authors T. Akizawa
- Chemistry, Medicine
- Biological & pharmaceutical bulletin
- 1 September 2003
The possibility that tea polyphenols suppress tumor growth through the suppression of angiogenesis is suggested, as well as the possibility that EGCG reduces the activity of MMP-2 in the conditioned medium of human umbilical vein endothelial cells. Expand
Baicalein induces apoptosis through ROS-mediated mitochondrial dysfunction pathway in HL-60 cells.
- Jianwu Wang, Yuanjing Yu, F. Hashimoto, Y. Sakata, M. Fujii, D. Hou
- Biology, Medicine
- International journal of molecular medicine
- 1 October 2004
It is reported that baicalein was able to induce apoptosis in human promyelocytic leukemia cells (HL-60), as characterized by poly-(ADP-ribose) polymerase (PARP) cleavage and DNA fragmentation, and this data indicate that baicalsein may trigger an apoptotic death program through reactive oxygen species (ROS)-mediated mitochondrial dysfunction pathway. Expand
Phenetics in Tree Peony Species from China by Flower Pigment Cluster Analysis
The results obtained by PCA and clustering qualify a chemical classification of section Moutan using secondary metabolites, specifically flower pigments, as taxonomic markers. Expand
Chemosystematics of tea trees based on tea leaf polyphenols as phenetic markers.
Results show good agreement with the current theory of tea tree origins, and this suggests that the Xishuangbanna district and Puer City are among the original sites of the tea tree species. Expand