Results 81 to 90 of about 5,580 (187)

Research on the Mechanism of Natural Products Acting on Chronic Obstructive Pulmonary Disease

Food Science &Nutrition, Volume 14, Issue 7, July 2026.
This figure illustrates that approximately 80 natural compounds exert therapeutic effects against chronic obstructive pulmonary disease by targeting pathological mechanisms such as airway inflammation, oxidative stress, airway remodeling, mucus hypersecretion, emphysema, protease–antiprotease imbalance, apoptosis, and autophagy.
Shuna Wei, Xiaoju Liu
wiley   +1 more source

Rapid formation of isoprene photo-oxidation products observed in Amazonia [PDF]

Atmospheric Chemistry and Physics, 2009
Isoprene represents the single most important reactive hydrocarbon for atmospheric chemistry in the tropical atmosphere. It plays a central role in global and regional atmospheric chemistry and possible climate feedbacks.
T. Karl, A. Guenther, A. Turnipseed, G. Tyndall, P. Artaxo, S. Martin   +5 more
doaj  

Dietary Polyphenols as Natural Modulators of NF‐κB Signaling in Inflammation‐Driven Non‐Communicable Diseases: Focus on Cancer

Food Science &Nutrition, Volume 14, Issue 7, July 2026.
Dietary polyphenols and phytochemicals suppress NF‐κB signaling. Mechanistically, by inhibiting IκBα degradation and preventing nuclear translocation of p65/p50 complexes, the polyphenols reduce the expression of pro‐inflammatory and pro‐survival genes, thereby decreasing overall cancer cell survival.
Khuzin Dinislam, Anas Shamsi, Syed Tasqeruddin, Moyad Shahwan   +3 more
wiley   +1 more source

Methane Emission Reductions Slow Stratospheric Ozone Recovery by Amplifying the Potency of Ozone Depleting Substances

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Reducing methane emissions is important for restricting surface temperature increases. However, methane also influences stratospheric ozone, and its recovery, via chemical and radiative processes. Using the United Kingdom Earth System Model's state‐of‐the‐art methane emission‐driven capability, we examine the impact of methane emission ...
James Weber, Maisie Wright, William J. Collins, Keith P. Shine, Fiona M. O’Connor, Gerd A. Folberth, Paul Griffiths, Sam Abernethy   +7 more
wiley   +1 more source

Excipient Emulsion–Based Delivery Systems for Enhancing Carotenoid Bioavailability: Advances in Formulation and Gastrointestinal Fate

AgriFood: Journal of Agricultural Products for Food, Volume 2, Issue 2, Page 110-126, June 2026.
Excipient emulsion systems improve carotenoid solubilization, protect against degradation, and enhance gastrointestinal absorption through optimized formulation and digestion behavior. ABSTRACT Carotenoids are bioactive compounds that contribute to human health through antioxidant, provitamin A, and disease‐preventive effects.
Tugce Ceyhan, Elifsu Nemli, Esra Capanoglu, Merve Tomas   +3 more
wiley   +1 more source

Effects of 1,3-Butadiene, Isoprene, and Their Photochemical Degradation Products on Human Lung Cells

Environmental Health Perspectives, 2004
Because of potential exposure both in the workplace and from ambient air, the known carcinogen 1,3-butadiene (BD) is considered a priority hazardous air pollutant. BD and its 2-methyl analog, isoprene (ISO), are chemically similar but have very different toxicities, with ISO showing no significant carcinogenesis.
Doyle, Melanie, Sexton, Kenneth G., Jeffries, Harvey, Bridge, Kevin, Jaspers, Ilona   +4 more
openaire   +2 more sources

Benchtop NMR Spectroscopy of Pyrolysis Oils From Mixed Plastic Waste: Parameter Optimization for Oil Characterization and Detection of Heteroatom‐Containing Compounds

Chemistry–Methods, Volume 6, Issue 6, June 2026.
In this article, benchtop‐NMR spectroscopy was evaluated as an analytical method for the characterization of plastic waste derived pyrolysis oils. The signal‐to‐noise ratio was enhanced via measurement parameter optimization and optimization of postacquisition parameters.
Anika Goecke, Jonas Vogt, Salar Tavakkol, Shahram Mihan, Volker Fraaije, Ricardo Kurz, Diana Dötsch, Dieter Stapf, Manfred Wilhelm   +8 more
wiley   +1 more source

Protocol for the development of the Master Chemical Mechanism, MCM v3 (Part A): tropospheric degradation of non-aromatic volatile organic compounds [PDF]

Atmospheric Chemistry and Physics, 2003
Kinetic and mechanistic data relevant to the tropospheric degradation of volatile organic compounds (VOC), and the production of secondary pollutants, have previously been used to define a protocol which underpinned the construction of a near-explicit ...
S. M. Saunders, S. M. Saunders, M. E. Jenkin, R. G. Derwent, M. J. Pilling   +4 more
doaj  

Metathesis Transformations of Natural Products: Cross-Metathesis of Natural Rubber and Mandarin Oil by Ru-Alkylidene Catalysts

Molecules, 2012
This study reports on the degradation of natural rubber (NR) via cross-metathesis with mandarin oil and <em>d</em>-limonene, an abundant compound in essential oils; that were used as chain transfer agents (CTAs) and green solvents.
Mikhail A. Tlenkopatchev, Selena Gutiérrez, Araceli Martínez   +2 more
doaj   +1 more source

Additional file 1 of Isoprene-degrading bacteria associated with the phyllosphere of Salix fragilis, a high isoprene-emitting willow of the Northern Hemisphere

, 2021
Additional file 1: Table S1. Comparison of polypeptides recovered from the duplicate isoprene degradation gene clusters (iso cluster 1 and iso cluster 2; Figure 3) found in a Mycobacterium MAG to those recovered from Mycobacterium AT1 and the well-characterised Rhodococcus AD45. Table S2.
Gibson, Lisa, Crombie, Andrew T., McNamara, Niall P., Murrell, J. Colin   +3 more
openaire   +1 more source