Yew leaves poisoning is a rare life-threatening intoxication, whose diagnosis can be difficult. Initial symptoms are nausea, vomiting, abdominal pain, dizziness, tachycardia, muscle weakness, confusion, beginning within 1 hr from ingestion and followed by bradycardia, ventricular arrhythmias, ventricular fibrillation, severe hypotension, and death. Taxine-derived alkaloids are responsible for the toxicity of the yew leaves, blocking sodium and calcium channels, and causing conduction abnormalities. Because of lack of a specific antidote and limited efficacy of common antiarrhythmic drugs, prompt diagnosis, detoxification measures, and immediate hemodynamic support (also with transvenous cardiac stimulation) are essential.
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http://dx.doi.org/10.1111/anec.12535 | DOI Listing |
Photosynth Res
February 2025
Faculty of Forestry and Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 71E, 60-625, Poznan, Poland.
bioRxiv
November 2024
Department of Chemical Engineering, Stanford University, California 94305.
Plants make complex and potent therapeutic molecules, but difficulties in sourcing from natural producers or chemical synthesis can challenge their use in the clinic. A prominent example is the anti-cancer therapeutic paclitaxel (Taxol). Identification of the full paclitaxel biosynthetic pathway would enable heterologous drug production, but it has eluded discovery despite a half century of intensive research.
View Article and Find Full Text PDFEnviron Res
January 2025
College of Ecology, Northeast Forestry University, Harbin, 150040, China; Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, Northeast Forestry University, Harbin, 150040, China; Northeast Asia Biodiversity Research Center, Northeast Forestry University, Harbin, 150040, China. Electronic address:
The purpose of this paper was to discover the key factors driving the lignocellulose degradation in litter along a forest succession chronosequence from the perspective of functional genes. We investigated four natural successive stages of forests (white birch forest, broad-leaved mixed forest, coniferous-broad-leaved mixed forest, and mixed broadleaved-Korean pine forest). We determined the lignocellulose degradation of litter and the absolute abundance of related functional genes by using high-throughput-qPCR.
View Article and Find Full Text PDFFront Pharmacol
October 2024
School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.
Nat Commun
October 2024
School of Geography, Earth and Environmental Sciences, University of Birmingham, B15 2TT, Birmingham, UK.
Increasing water stress is emerging as a global phenomenon, and is anticipated to have a marked impact on forest function. The role of tree functional strategies is pivotal in regulating forest fitness and their ability to cope with water stress. However, how the functional strategies found at the tree or species level scale up to characterise forest communities and their variation across regions is not yet well-established.
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