Results 101 to 110 of about 428,740 (258)

Fluorescent Vitamin B12–Platinum(II) Derivatives as Potential Metallotheranostic Agents for the Treatment and Imaging of Tumors

open access: yesInorganics
Vitamin B12 (cyanocobalamin) is an essential nutrient with very low bioavailability. Compared with normal cells, tumor cells show an increased demand for vitamin B12 to support their abnormal proliferation, which is a feature that can be exploited for ...
Rozan Mehder   +7 more
doaj   +1 more source

Self‐Amplifying Redox Cycle Triggers Ferroptosis/Cuproptosis Synergy for Enhanced Bacterial Eradication

open access: yesAdvanced Science, EarlyView.
This study designs a targeted nanocomposite (ct@HMCF‐Dex) that responds to acidic infection microenvironments, releasing components which amplify oxidative stress. It disrupts bacterial redox balance, chelates metals to sustain lipid peroxidation, and synergistically induces cuproptosis/ferroptosis‐like death.
Zehui Xiao   +6 more
wiley   +1 more source

Folate, vitamin B-12, and cognitive function in the Boston Puerto Rican Health Study. [PDF]

open access: yesAm J Clin Nutr, 2021
Boumenna T   +4 more
europepmc   +1 more source

Microbial Odorant Detection Guides Drosophila Parasitoids Seeking Hosts in Fermenting Fruits

open access: yesAdvanced Science, EarlyView.
Yeast microbes in fermenting fruits attract both host flies and their parasitoid wasps. Female Leptopilina boulardi detect yeast‐emitted ethyl esters via two olfactory receptors, LbouOR167 and LbouOR136. A conserved residue, Leu159, is critical for binding these compounds, enabling female wasps to locate host‐rich habitats.
Yueqi Lu   +11 more
wiley   +1 more source

Maternal Mental Health in Late Pregnancy and Longitudinal Changes in Postpartum Serum Vitamin B-12, Homocysteine, and Milk B-12 Concentration Among Brazilian Women. [PDF]

open access: yesFront Nutr, 2022
Batalha MA   +9 more
europepmc   +1 more source

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

open access: yesAdvanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao   +6 more
wiley   +1 more source

Comparative Study of B Vitamins in Multiple Tissues of Oilseed Crops and Leafty Vegetables Reveal Sesame as a Valuable Resource in Vitamin B3, B6 and B12

open access: yesAntioxidants
B vitamins are essential micronutrients for human health with prominent antioxidant properties, capable of scavenging reactive oxygen species (ROS) and maintaining redox homeostasis, protecting cells from oxidative damage.
Yijia Zhang   +9 more
doaj   +1 more source

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