نتایج جستجو برای: viscum
تعداد نتایج: 627 فیلتر نتایج به سال:
Tumor cells have the capacity to secrete immunosuppressive substances in order to diminish dendritic cell (DC) activity and thereby escape from immune responses. The impact of mistletoe (Viscum album) extracts (VAE), which are frequently used as an additive anti-cancer therapy to stimulate the immune response, is still unknown. Using a human cellular system, the impact of two different VAE (VAE...
Mistletoe lectin I (ML-I) is a major active component in plant extracts of Viscum album that is increasingly used in adjuvant cancer therapy. ML-I exerts potent immunomodulating and cytotoxic effects, although its mechanism of action is largely unknown. We show that treatment of leukemic Tand B-cell lines with ML-I induced apoptosis, which required the prior activation of proteases of the caspa...
^ost V9rcoma ^ 'n mice and cell cultures. The tUrnour Ct'Ve *ract'on produced a 50% reduction in only q Slze (compared with controls) at a dose of 6?.Oon "5 ^9/Kg. An average molecular weight of n^eans an active dose of 8.3 x 10-ir> mols/g. (He also quotes a figure of 8.5 x 10-11 mols/g for the commercial preparation Iscador.) In testing the various fractions for the effects in producing tumour...
Loranthophila gen. n. is described, based on Minthea acanthacollis (Carter & Zeck), and comparisons are made between this genus and other members of the bostrichid subfamily Lyctinae.
This investigation was conducted to compare the photosynthetic indices in ironwood trees infected by Viscum album L. and healthy trees located both in stand and out of stand in plain forest of Tamishan, Nour city. In each position, five healthy and five infected trees were selected and photosynthetic parameters, stomatal conductance, transpiration and internal CO2 were examined. Results showed ...
Pine mistletoe (Viscum album ssp. austriacum) is common in natural Scots pine (Pinus sylvestris L.) forests in the alpine Rhone Valley, Switzerland. This semi-parasite, which is regarded as an indicator species for temperature, increases the drought stress on trees and may contribute to the observed pine decline in the region. We recorded mistletoes on representative plots of the Swiss National...
Viscumin of mistletoe (Viscum album L.) has a concentration-dependent activity profile unique to plant AB-toxins. It starts with lectin-dependent mitogenicity and then covers toxicity and cell agglutination, associated with shifts in the monomer/dimer equilibrium. Each lectin subunit harbors two sections for ligand contact. In the dimer, the B-chain sites in subdomain 2 gamma (designated as the...
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