8 Αποτελέσματα
Vernonia extensa, known as "Phim Phai Lin" in Thai, is distributed in most regions of Thailand. The plant has been used in Ayurveda and traditionally used to treat malaria and cancer, and possesses several sesquiterpene lactones. This study aimed to investigate and identify the active
Bioassay-directed fractionation of an ethanolic extract of stems of Vernonia cinerea has resulted in the isolation of two novel sesquiterpene lactones, vernolide-A and -B. Their structures were elucidated on the basis of spectroscopic analysis. Biological evaluation showed that vernolide-A
Effect of Vernonia cinerea L. and vernolide-A on cell-mediated immune (CMI) response was studied in normal as well as tumor-bearing BALB/c mice. Administration of V. cinerea and vernolide-A significantly enhanced natural killer (NK) cell activity in both normal as well as tumor-bearing animals, and
The inhibitory effect of vernolide-A (C(21)H(28)O(7)) on lung metastasis induced by B16F-10 melanoma cells was studied using C57BL/6 mice. Vernolide-A was administered in three different modalities such as simultaneously with tumor, prophylactic to tumor and after tumor development. Maximum
One of the major reasons for the rapid progression of cancers is the ability of tumor cells to escape from the immune surveillance mechanism of the body. Modulation of immune responses is highly relevant in tumor cell destruction. Effect of vernolide-A on the cell-mediated immune (CMI) response in
Five new sesquiterpene lactones, namely vernchinilides A-E (1-5), along with five known compounds, 8 beta-(2-methylacryloyloxy)hirsutinolide 13-O-acetate (6), 8 alpha-(2-methylacryloyloxy)-1beta,4beta-epoxy-1alpha-methoxy-13-O-acetate-10 betaH-germacra-5 E,7(11)-dien-12,6-olide (7), 8
BACKGROUND
The Vernonia genus has about one thousand species and members of the genus are widely used as food and medicine. The aim of this review is to analyze published data on the ethnomedicinal, ethnoveterinary and zoopharmacognostic uses of plants of the Vernonia genus. This will help to
In addition to known compounds, the leaves of Vernonia amygdalina afforded the new sesquiterpene lactones 14-O-methylvernolide (2), 3'-deoxyvernodalol (6), and vernomygdalin (8). These and related compounds were evaluated for modulation of a series of thiol trapping-sensitive transcription factors