Natural-source d-α-tocopheryl acetate inhibits oxidant stress and modulates atopic asthma in humans in vivo.

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Natural-source d-α-tocopheryl acetate inhibits oxidant stress and modulates atopic asthma in humans in vivo.

Hoskins A, Roberts JL 2nd, Milne G, Choi L, Dworski R.

Journal		Allergy.
Species
Analytes Measured		IL-10 , IL-12 p70 , IL-13 , IL-2 , IL-4 , IL-5 , IL-8
Matrix Tested		Bronchoalveolar lavage (BAL) fluid

Year		2012
Volume		67
Page Numbers		676-682
Application		Cytokines and Chemokines

Abstract

BACKGROUND: Asthma is associated with oxidant stress and diminished antioxidant defenses. Yet, the mechanistic role of oxidant stress and antioxidant supplementation in human asthmatics remains uncertain. We determined the effect of high doses of the antioxidant natural-source d-α-tocopheryl acetate for 16 weeks on allergen-induced airway oxidant stress, inflammation, and bronchial responsiveness to methacholine and allergen in atopic asthmatics in vivo.

METHODS: Thirty-three mild atopic asthmatics underwent bronchoscopy with baseline bronchoalveolar lavage and segmental allergen challenge. The allergen-challenged airway was lavaged 24 h later. At least 3 weeks later, patients underwent inhaled challenges with methacholine and specific allergen. Volunteers took 1500 IU of natural-source d-α-tocopheryl acetate daily for at least 16 weeks. At the end of the treatment, the two bronchoscopies and inhaled methacholine and allergen challenges were repeated. F(2)-isoprostanes, specific markers of oxidant stress, and selected Th1 and Th2 cytokines were analyzed in the lavage fluid.

RESULTS: Following supplementation of natural-source d-α-tocopheryl acetate, plasma concentrations of α-tocopherol increased and γ-tocopherol decreased. Both baseline and allergen-induced F(2)-isoprostanes significantly decreased, providing biochemical evidence for an antioxidant effect. Natural-source d-α-tocopheryl acetate reduced allergen-provoked concentrations of interleukin 3 and interleukin 4 and augmented levels of interleukin 12 in bronchoalveolar lavage fluid. Natural-source d-α-tocopheryl acetate improved airway responsiveness to methacholine but did not alter airway reactivity to specific allergen.

CONCLUSIONS: Inhibition of oxidant stress by natural-source d-α-tocopheryl acetate modulates allergic inflammation and airway hyperresponsiveness in human atopic asthmatics in vivo. These results need to be confirmed by a randomized placebo-controlled trial

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S-PLEX Human IL-13 Kit IL-13 \| Human Singleplex
S-PLEX NHP IL-2 Kit IL-2 \| Non-human primate Singleplex
S-PLEX NHP IL-5 Kit IL-5 \| Non-human primate Singleplex
S-PLEX Human IL-10 Kit IL-10 \| Human Singleplex
S-PLEX Human IL-4 Kit IL-4 \| Human Singleplex
S-PLEX Human IL-2 Kit IL-2 \| Human Singleplex
S-PLEX Human IL-12p70 Kit IL-12p70 \| Human Singleplex
S-PLEX Human IL-5 Kit IL-5 \| Human Singleplex
U-PLEX Macrophage M2 Combo 1 (human) Eotaxin-2, IL-4, IL-10, IL-13, M-CSF, MDC, TARC \| Human Multiplex
U-PLEX Macrophage M1 Combo 1 (human) IL-1β, IL-6, IL-12p70, IL-18, IL-23, IP-10, MCP-1, MIP-1α, TNF-α \| Human Multiplex
U-PLEX CAR-T Cell Combo 1 (human) GM-CSF, Granzyme A, Granzyme B, IFN-γ, IL-2, TNF-α \| Human Multiplex
V-PLEX Viral Panel 3 NHP Kit IFN-γ, IL-1β, IL-5, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Viral Panel 3 Human Kit IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12p70, TNF-α \| Human Multiplex
V-PLEX Plus Viral Panel 3 NHP Kit IFN-γ, IL-1β, IL-5, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Plus Viral Panel 3 Human Kit IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12p70, TNF-α \| Human Multiplex
U-PLEX Viral Combo 1 (NHP) G-CSF, GM-CSF, IFN-α2a, IFN-γ, IL-1β, IL-1RA, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12p70, IP-10, MCP-1, MIP-1α, TNF-α, VEGF-A \| Non-human primate Multiplex
U-PLEX Viral Combo 1 (human) G-CSF, GM-CSF, IFN-α2a, IFN-β, IFN-γ, IL-1β, IL-1RA, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12p70, IP-10, MCP-1, MIP-1α, TNF-α, VEGF-A \| Human Multiplex
V-PLEX Viral Panel 1 NHP Kit IL-1β, IL-6, IL-8 \| Non-human primate Multiplex
V-PLEX Viral Panel 1 Human Kit IL-1β, IL-6, IL-8, TNF-α \| Human Multiplex
V-PLEX Plus Viral Panel 2 NHP Kit IFN-γ, IL-1β, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Plus Viral Panel 2 Human Kit IFN-γ, IL-1β, IL-4, IL-6, IL-8, IL-10, TNF-α \| Human Multiplex
V-PLEX Plus Viral Panel 1 NHP Kit IL-1β, IL-6, IL-8 \| Non-human primate Multiplex
V-PLEX Plus Viral Panel 1 Human Kit IL-1β, IL-6, IL-8, TNF-α \| Human Multiplex
V-PLEX Viral Panel 2 NHP Kit IFN-γ, IL-1β, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Viral Panel 2 Human Kit IFN-γ, IL-1β, IL-4, IL-6, IL-8, IL-10, TNF-α \| Human Multiplex
U-PLEX NHP IL-2 Assay IL-2 \| Non-human primate Singleplex
U-PLEX NHP IL-8 Assay IL-8 \| Non-human primate Singleplex
U-PLEX NHP IL-10 Assay IL-10 \| Non-human primate Singleplex
U-PLEX NHP IL-5 Assay IL-5 \| Non-human primate Singleplex
U-PLEX Mouse IL-5 Assay IL-5 \| Mouse Singleplex
U-PLEX Mouse IL-10 Assay IL-10 \| Mouse Singleplex
U-PLEX Mouse IL-12p70 Assay IL-12p70 \| Mouse Singleplex
U-PLEX Mouse IL-13 Assay IL-13 \| Mouse Singleplex
U-PLEX Mouse IL-4 Assay IL-4 \| Mouse Singleplex
U-PLEX Mouse IL-2 Assay IL-2 \| Mouse Singleplex
U-PLEX NHP IL-12p70 Assay IL-12p70 \| Non-human primate Singleplex
U-PLEX NHP IL-4 Assay IL-4 \| Non-human primate Singleplex
U-PLEX Human IL-13 Assay IL-13 \| Human Singleplex
U-PLEX Human IL-4 Assay IL-4 \| Human Singleplex
U-PLEX Human IL-8 Assay IL-8 \| Human Singleplex
U-PLEX Human IL-12p70 Assay IL-12p70 \| Human Singleplex
U-PLEX Human IL-10 Assay IL-10 \| Human Singleplex
U-PLEX Human IL-5 Assay IL-5 \| Human Singleplex
U-PLEX Human IL-2 Assay IL-2 \| Human Singleplex
U-PLEX NHP IL-13 Assay IL-13 \| Non-human primate Singleplex
R-PLEX Rat IL-13 Assay IL-13 \| Rat Singleplex
R-PLEX Rat IL-10 Assay IL-10 \| Rat Singleplex
R-PLEX Rat IL-2 Assay IL-2 \| Rat Singleplex
R-PLEX Rat IL-4 Assay IL-4 \| Rat Singleplex
R-PLEX Rat IL-5 Assay IL-5 \| Rat Singleplex
U-PLEX Custom Metabolic Group 1 (mouse) Assays Mouse Multiplex
U-PLEX Adipokine Combo 1 (mouse) BDNF, IL-1β, IL-6, IL-10, Insulin, Leptin, MCP-1, TNF-α \| Mouse Multiplex
U-PLEX Custom Metabolic Group 1 (human) Assays BAFF, BDNF, β-NGF, C-Peptide, CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF-21, FGF-23, FLT3L, Fractalkine, FSH, G-CSF, Ghrelin (active), Ghrelin (total), GIP (active), GIP (inactive), GIP (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-β, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, IL-2Rα, IL-3, IL-4, IL-5, IL-6, IL-7, IL-8, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17D, IL-17E/IL-25, IL-17F, IL-18, IL-21, IL-22, IL-23, IL-27, IL-29/IFN-λ1, IL-31, IL-33, Insulin, IP-10, Leptin, Luteinizing Hormone (LH), MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-5, PP, Proinsulin, PYY (total), SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 \| Human Multiplex
U-PLEX Adipokine Combo 1 (human) BDNF, β-NGF, IL-1β, IL-6, IL-8, IL-10, Insulin, Leptin, MCP-1, TNF-α \| Human Multiplex
R-PLEX Rat IL-5 Antibody Set IL-5 \| Rat
R-PLEX Rat IL-4 Antibody Set IL-4 \| Rat
R-PLEX Rat IL-10 Antibody Set IL-10 \| Rat
R-PLEX Rat IL-2 Antibody Set IL-2 \| Rat
R-PLEX Rat IL-13 Antibody Set IL-13 \| Rat
V-PLEX Plus Mouse Cytokine 19-Plex Kit IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12p70, IL-15, IL-17A/F, IL-27p28/IL-30, IL-33, IP-10, KC/GRO, MCP-1, MIP-1α, MIP-2, TNF-α \| Mouse Multiplex
V-PLEX Mouse Cytokine 19-Plex Kit IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12p70, IL-15, IL-17A/F, IL-27p28/IL-30, IL-33, IP-10, KC/GRO, MCP-1, MIP-1α, MIP-2, TNF-α \| Mouse Multiplex
U-PLEX NHP IL-13 Antibody Set IL-13 \| Non-human primate
U-PLEX T-Cell Combo (NHP) GM-CSF, IFN-γ, IL-2, IL-4, IL-9, IL-10, IL-13, IL-17A, IL-17F, IL-22, MIP-3α, TNF-α \| Non-human primate Multiplex
U-PLEX T-Cell Combo (human) GM-CSF, IFN-γ, IL-2, IL-4, IL-9, IL-10, IL-13, IL-17A, IL-17E/IL-25, IL-17F, IL-21, IL-22, MIP-3α, TNF-α \| Human Multiplex
U-PLEX T-Cell Combo (mouse) GM-CSF, IFN-γ, IL-2, IL-4, IL-9, IL-10, IL-13, IL-17A, IL-17E/IL-25, IL-17F, IL-21, IL-22, MIP-3α, TNF-α \| Mouse Multiplex
U-PLEX NHP IL-4 Antibody Set IL-4 \| Non-human primate
U-PLEX NHP IL-12p70 Antibody Set IL-12p70 \| Non-human primate
U-PLEX TH17 Combo 2 (human) IFN-γ, IL-1β, IL-6, IL-10, IL-17A, IL-17E/IL-25, IL-17F, IL-21, IL-22, TNF-α \| Human Multiplex
U-PLEX TH1/TH2 Combo (NHP) IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-8, IL-10, IL-12p70, TNF-α \| Non-human primate Multiplex
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Natural-source d-α-tocopheryl acetate inhibits oxidant stress and modulates atopic asthma in humans in vivo.

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