Results 111 to 120 of about 70,014 (336)

Evidence for O-atom exchange in the O(^1D) + N_2O reaction as the source of mass-independent isotopic fractionation in atmospheric N_2O [PDF]

open access: yes, 2004
Recent experiments have shown that in the oxygen isotopic exchange reaction for O(^1D) + CO_2 the elastic channel is approximately 50% that of the inelastic channel [Perri et al., 2003].
Blake, Geoffrey A.   +4 more
core  

Ir(III) Complexes Convert Cold to Hot Tumors via Ferroptosis/Necroptosis‐Driven Immunogenic Cell Death and Photosensitized CD47 Downregulation

open access: yesAdvanced Science, EarlyView.
Red‐light‐activated Ir1 overcomes hypoxia tolerance and adapts to the immunosuppressive tumor microenvironment, converting immunologically cold tumors into inflamed hot microenvironments. This conversion is driven by synergistic induction of immunogenic cell death through coordinated ferroptosis‐necroptosis pathways and spatiotemporally controlled ...
Long‐Bo Yu   +8 more
wiley   +1 more source

Synthesis of 11, 12-2H2- and 11, 12-3H2-labeled chenodeoxycholic and lithocholic acids

open access: yesJournal of Lipid Research, 1976
Deuterium- and tritium-labeled chenodeoxycholic acid and lithocholic were prepared by catalytic reduction of their respective Δ11 derivatives. Structures of the intermediates and their isotopic purity were verified by chemical ionization and electron ...
A E Cowen   +6 more
doaj   +1 more source

Effects of Breastfeeding on Maternal Body Composition in Moroccan Lactating Women during Twelve Months after Birth Using Stable Isotopic Dilution Technique. [PDF]

open access: yesNutrients, 2021
Rabi B   +10 more
europepmc   +1 more source

Early Detection of Chemotherapy‐Induced Glucose Metabolic Alterations in Bladder Carcinoma Using Deuterium (2H) Metabolic Imaging: in Vitro and in Vivo Assessments

open access: yesAdvanced Science, EarlyView.
This study presents the first application of deuterium metabolic imaging (DMI) for assessing therapeutic response in bladder cancer. Employing [2,3,4,6,6′‐2H5]‐D‐glucose, DMI successfully identified chemotherapy‐induced suppression of glycolysis both in vitro and in vivo.
Lingmin Kong   +15 more
wiley   +1 more source

Targeting G3BP1 Condensate Topology Promotes Stress Granule Assembly via m6A‐IGF2BP1 for Ischemic Stroke Rescue

open access: yesAdvanced Science, EarlyView.
Our research reveals that small‐molecule icariin (ICA) directly binds Ras‐GTPase‐activating protein SH3 domain‐binding protein 1 (G3BP1), inducing conformational change and oligomerization. This interaction confers neuroprotection by recruiting insulin‐like growth factor 2 mRNA‐binding protein 1 (IGF2BP1) and modulating N6‐methyladenosine (m6A ...
Ling Li   +17 more
wiley   +1 more source

A simplified method for synthesizing juvenile hormone-protein conjugates.

open access: yesJournal of Lipid Research, 1990
A convenient and simple method is presented for the synthesis of juvenile hormone-thyroglobulin conjugates. Methods previously described for this hapten linkage have used a two-step process in which a reactive intermediate was isolated and then used for ...
WG Goodman
doaj   +1 more source

Boron Nitride Nanomaterials Trigger Immunomodulatory Effects in Human Broncho‐Epithelial Cells by Modulating Eicosanoid Lipid Signaling

open access: yesAdvanced Science, EarlyView.
This study demonstrates that BNNT exposure disrupts lipid homeostasis in bronchial epithelial cell cultures and activates eicosanoid lipid biosynthesis, producing inflammatory lipid mediators like leukotrienes. These effects are more pronounced in asthmatic cell cultures compared to healthy ones.
Govind Gupta   +14 more
wiley   +1 more source

Calibration of Sm-Nd mixed spike by teflon powder method

open access: yesJournal of Analytical Science and Technology, 2010
Isotopic composition of Sm-Nd mixed spike was calibrated by teflon powder method. Sm and Nd isotopic compositions of the spike were externally calibrated with reference to the nNdβ standard and normal Sm.
Chang-Sik Cheong, Sung-Tack Kwon
doaj  

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