Two new pregnane glycosides, kidjoranine 3-O-β-D-glucopyranosyl-(1 → 4)-β-D-glucopyranosyl-(1 → 4)-α-L-cymaropyranosyl-(1 → 4)-β-D-cymaropyranosyl-(1→4)-α-L-diginopyranosyl-(1 → 4)-β-D-cymaropyranoside (5) and caudatin 3-O-β-D-glucopyranosyl-(1 → 4)-β-D-glucopyranosyl-(1 → 4)-α-L-cymaropyranosyl-(1 → 4)-β-D-cymaropyranosyl-(1 → 4)-α-L-diginopyranosyl-(1 → 4)-β-D-cymaropyranoside (6), were isolated from the roots of Cynanchum wilfordii along with four known compounds (1-4). The antifungal activities of the six compounds against barley powdery mildew caused by Blumeria graminis f. sp. hordei were compared to the antifungal activity of polyoxin B. The caudatin glycosides (1, 4, and 6) showed stronger antifungal activities than polyoxin B, whereas kidjoranine glycosides (2, 3, and 5) had weaker activities than polyoxin B. A wettable powder-type formulation (C. wilfordii-WP20) of the ethyl acetate extract from C. wilfordii roots prohibited the development of barley powdery mildew much more effectively than the commercial fungicide polyoxin B-WP10. In addition, C. wilfordii-WP20 effectively controlled strawberry powdery mildew caused by Sphaerotheca humuli under greenhouse conditions. Thus, the crude extract containing the pregnane glycosides can be used as a botanical fungicide for the environmentally benign control of powdery mildews.
(Forssk.) is a medicinal succulent plant belonging to the family Apocynaceae. The phytochemical examination of methanolic extract resulted in isolation of three unique new pregnane glycosides, quadrangulosides G-I (), their structures were elucidated utilising 1D, 2D NMR and ESI MS spectral studies.
Exploring the clinical and pathological characteristics and prognostic factors of diffuse large B-cell lymphoma (DLBCL) patients with TP53 mutation. Data of 86 DLBCL patients with TP53 mutation treated with R-CHOP and 19 DLBCL patients with TP53 mutation treated with R-CHOP like regimen as first-line treatment at the Cancer Hospital of Chinese Academy of Medical Sciences (CAMS) and the Cancer Hospital of the CAMS in Shenzhen, China, from January 2006 to June 2023 were retrospectively analyzed. Multivariate Cox analysis was applied to assess the effects of the factors on survival.
Enzymes capable of processing a variety of compounds enable plants to adapt to diverse environmental conditions. PRISEs (progesterone-5β-reductase/iridoid synthase-like enzymes), examples of such substrate-promiscuous enzymes, are involved in iridoid and cardenolide pathways and demonstrate notable substrate promiscuity by reducing the activated C=C double bonds of plant-borne and exogenous 1,4-enones. In this study, we identified PRISE genes in () and (), and the corresponding enzymes were determined to share a sequence identity of 95%.
Survival outcomes of Pediatric Acute Lymphoblastic Leukemia (ALL) in the developing world have lagged. Here we report improved outcomes of pediatric ALL from India. We analyzed outcomes of children with ALL treated at our center between 2016 and 2021.
