IL-6-independent association of elevated serum neopterin levels with prevalent frailty in community-dwelling older adult.

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IL-6-independent association of elevated serum neopterin levels with prevalent frailty in community-dwelling older adult.

Leng, S.X., Tian, X., Matteini, A., Li, H., Hughes, J., Jain, A., Walston, J.D., Fedarko, N.S.

Journal		Age Ageing.
Species
Analytes Measured		IL-6
Matrix Tested		Serum

Year		2011
Volume		40
Page Numbers		475-481
Application		Cytokines and Chemokines

Abstract

BACKGROUND: Neopterin is a monocyte/macrophage-derived immune activation marker and its levels increase with age. Frailty is an important clinical syndrome of old age. Previous studies have shown significant association between elevated interleukin-6 (IL-6) levels and frailty. The objective of this study was to evaluate IL-6-independent association of serum neopterin levels with prevalent frailty.

METHODS: this is a cross-sectional study in community-dwelling older adults recruited from residential and retirement communities in Baltimore, MD, USA. Frailty was determined using validated screening criteria. Serum neopterin and IL-6 levels were measured using standard enzyme-linked immunosorbent assay. Pearson correlation and multivariate linear regression analysis was performed to assess the relationship between log(neopterin) and log(IL-6). Odds ratios (ORs) for frailty were calculated using log(neopterin) and log(IL-6) as continuous measures and across tertiles of neopterin and IL-6 levels, adjusting for age, race, sex, education and body mass index.

RESULTS: one hundred and thirty-three individuals with a mean age of 84 years (range 72-97) completed the study. Neopterin levels were significantly higher in frail older adults than those in non-frail controls [median: 8.94 versus 8.35 nM, respectively, P < 0.001 t-test on log(neopterin)]. Log(neopterin) was significantly associated with prevalent frailty, adjusting for log(IL-6). Participants in the top tertile of neopterin had OR of 3.80 [95% confidence interval (CI) = 1.36-10.6, P < 0.01] for frailty. As expected, participants in the top tertile of IL-6 had OR of 3.29 (95% CI = 1.21-7.86, P < 0.05) for frailty. Log(neopterin) correlated with log(IL-6) (correlation coefficient = 0.19, P < 0.05). Moreover, OR for participants in the top neopterin tertile remained significant after adjusting for IL-6 (OR = 3.97, 95% CI = 1.15-13.72, P < 0.05).

CONCLUSION: elevated neopterin levels had IL-6-independent association with prevalent frailty, suggesting potential monocyte/macrophage-mediated immune activation in the frail elderly.

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U-PLEX Proinflam Combo 1 (mouse) IFN-γ, IL-1β, IL-2, IL-6, IL-10, IL-12p70, IL-17A, IP-10, MCP-1, TNF-α \| Mouse Multiplex
U-PLEX Custom Biomarker Group 1 (mouse) Assays 6CKine/CCL21, BAFF, BCA-1/BLC, CD40/TNFRSF5, Eotaxin, EPO, GM-CSF, IFN-α, IFN-β, IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, IL-23, IL-27p28/IL-30, IL-31, IL-33, IP-10, KC/GRO, MCP-1, MCP-5/CCL12, MDC, MIP-1α, MIP-1β, MIP-2, MIP-3α, MMP-9 (total), NGAL/LCN2, RANTES, SDF-1α, TARC, TNF-α, TNF-RI, VEGF-A \| Mouse Multiplex
U-PLEX CAR-T Cell Efficacy Combo 1 (human) Granzyme B, IFN-γ, IL-2, IL-6, IL-12p70, IP-10, Perforin, TNF-α \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) 384-well Assays BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF (basic), FLT3L, Fractalkine, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, 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, IP-10, I-TAC, LAG3, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-5, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L2, PlGF, RANKL/TNFSF11, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, YKL-40 \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) Assays APRIL/TNFSF13, BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, E-Selectin, FGF (basic), FLT3L, Fractalkine, Galectin-9, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, HVEM/TNFRSF14, I-309, ICOS, ICOS-L/B7-H2, 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, IP-10, I-TAC, LAG3, LIGHT/TNFSF14, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIG, MIP-1α, MIP-1β, MIP-5, MMP-1, MMP-2, MMP-7, MMP-9 (total), Nectin-4, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L1 (epitope 2), PD-L2, Pentraxin 3, Perforin, PlGF, proMMP-9, P-Selectin, RAGE (soluble), RANKL/TNFSF11, RANTES, S100A12, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TNF-RI, TNF-RII, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, VEGFR-1/Flt-1, YKL-40 \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) Assays APRIL/TNFSF13, BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, E-Selectin, FGF (basic), FLT3L, Fractalkine, Galectin-9, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, HVEM/TNFRSF14, I-309, ICOS, ICOS-L/B7-H2, 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, IP-10, I-TAC, LAG3, LIGHT/TNFSF14, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIG, MIP-1α, MIP-1β, MIP-5, MMP-1, MMP-2, MMP-7, MMP-9 (total), Nectin-4, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L1 (epitope 2), PD-L2, Pentraxin 3, Perforin, PlGF, proMMP-9, P-Selectin, RAGE (soluble), RANKL/TNFSF11, RANTES, S100A12, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TNF-RI, TNF-RII, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, VEGFR-1/Flt-1, YKL-40 \| Human Multiplex
Mouse IL-6 Antibody IL-6

R-PLEX: Matched Antibody Sets - Suitable for Many Research Applications

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U-PLEX Long COVID Combo 1 (human) IFN-β, IFN-γ, IL-6, Pentraxin 3 \| Human Multiplex
U-PLEX CAR-T Cell Safety Combo 1 (human) GM-CSF, IFN-γ, IL-1β, IL-6, IL-10, MCP-1, TNF-α \| Human Multiplex
U-PLEX TBI Combo 1 (human) CD40L (soluble), Fractalkine, IFN-γ, IL-1β, IL-6, IL-18, MCP-1, RANKL/TNFSF11, TNF-α, VEGF-D \| Human Multiplex
U-PLEX Oncolysis Combo 1 (human) CTLA-4, IFN-α2a, IFN-β, IL-1β, IL-2Rα, IL-6, IL-8, IP-10, LAG3, MIP-1α, PD1 (epitope 1), TIGIT \| Human Multiplex
U-PLEX Macrophage M1 Combo 1 (mouse) IL-1β, IL-6, IL-12p70, IL-15, IL-23, IP-10, MCP-1, MIP-1α, TNF-α \| Mouse Multiplex
U-PLEX Custom Biomarker Group 1 (mouse) 384-well Assays Mouse Multiplex
U-PLEX Mouse IL-6 384-Well Assay IL-6 \| Mouse Singleplex
U-PLEX NHP IL-6 384-Well Assay IL-6 \| Non-human primate Singleplex
U-PLEX Custom Metabolic Group 1 (mouse) 384-well Assays BAFF, BCA-1/BLC, BDNF, CD40/TNFRSF5, C-Peptide, Eotaxin, EPO, FGF-21, Ghrelin (active), Ghrelin (total), GLP-1 (active), GLP-1 (inactive), GLP-1 (total), Glucagon, GM-CSF, IFN-α, IFN-β, IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, IL-23, IL-27p28/IL-30, IL-31, IL-33, Insulin, IP-10, KC/GRO, Leptin, MCP-1, MCP-5/CCL12, MDC, MIP-1α, MIP-1β, MIP-2, MIP-3α, MMP-9 (total), PYY (total), RANTES, TARC, TNF-α, VEGF-A \| Mouse Multiplex
U-PLEX Biomarker Group 1 (NHP) 384-well Assays CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, FLT3L, Fractalkine, G-CSF, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, 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-17B, IL-17C, IL-17D, IL-17F, IL-18, IL-22, IL-23, IP-10, I-TAC, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-3α, MIP-3β, MIP-5, SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, VEGF-A, YKL-40 \| Non-human primate Multiplex
U-PLEX Human IL-6 384-Well Assay IL-6 \| Human Singleplex
U-PLEX Custom Metabolic Group 1 (human) 384-well 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 Custom Biomarker Group 1 (human) 384-well Assays CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FLT3L, Fractalkine, G-CSF, 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-17B, 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, IP-10, I-TAC, MCP-1, MCP-2, MCP-3, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-3α, MIP-3β, MIP-5, SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 \| Human Multiplex
S-PLEX Proinflammatory Panel 1 (human) Kit IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-10, IL-12p70, IL-17A, TNF-α \| Human Multiplex
S-PLEX NHP IL-6 Kit IL-6 \| Non-human primate Singleplex
S-PLEX Human IL-6 Kit IL-6 \| Human Singleplex
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
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
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
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 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
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
U-PLEX NHP IL-6 Assay IL-6 \| Non-human primate Singleplex
U-PLEX Mouse IL-6 Assay IL-6 \| Mouse Singleplex
U-PLEX Human IL-6 Assay IL-6 \| Human Singleplex
R-PLEX Rat IL-6 Assay IL-6 \| 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 Metabolic Hormones Combo 1 (mouse) C-Peptide, Ghrelin (active), GLP-1 (active), Glucagon, IL-6, Insulin, Leptin, MCP-1, PYY (total), 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-6 Antibody Set IL-6 \| 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 TH17 Combo 2 (mouse) IFN-γ, IL-1β, IL-6, IL-17A, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, TNF-α \| Mouse Multiplex
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 TH17 Combo 1 (NHP) IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-17A, TNF-α \| Non-human primate Multiplex
U-PLEX Proinflam Combo 2 (human) GM-CSF, IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70 \| Human Multiplex
U-PLEX Proinflam Combo 1 (NHP) IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12/IL-23p40, TNF-α \| Non-human primate Multiplex
U-PLEX Biomarker Group 1 (NHP) Assays CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, FLT3L, Fractalkine, G-CSF, GM-CSF, GRO-α, I-309, IFN-α2a, IFN-γ, IL-1α, IL-1β, IL-1RA, IL-2, 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-17B, IL-17C, IL-17D, IL-17F, IL-18, IL-22, IL-23, IP-10, I-TAC, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-3α, MIP-3β, MIP-5, SDF-1α, TARC, TNF-α, TNF-β, TPO, TRAIL, VEGF-A, YKL-40 \| Non-human primate Multiplex
U-PLEX Custom Biomarker Group 1 (human) Assays CTACK, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FLT3L, Fractalkine, G-CSF, 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-17B, 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, IP-10, I-TAC, MCP-1, MCP-2, MCP-3, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-3α, MIP-3β, MIP-5, SDF-1α, TARC, TGF-β1, TGF-β2, TGF-β3, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, YKL-40 \| Human Multiplex
U-PLEX Proinflam Combo 1 (human) IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, TNF-α \| Human Multiplex
U-PLEX Proinflam Combo 4 (human) IL-1β, IL-6, IL-8, TNF-α \| Human Multiplex
U-PLEX Proinflam Combo 3 (human) IFN-γ, IL-1β, IL-6, TNF-α \| Human Multiplex
U-PLEX Human IL-6 Antibody Set IL-6 \| Human
U-PLEX Mouse IL-6 Antibody Set IL-6 \| Mouse
V-PLEX Proinflammatory Panel 2 Rat Kit IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-10, IL-13, KC/GRO, TNF-α \| Rat Multiplex
V-PLEX Plus Proinflammatory Panel 2 Rat Kit IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-10, IL-13, KC/GRO, TNF-α \| Rat Multiplex
V-PLEX Plus Human Biomarker 39-Plex Kit CRP, Eotaxin, Eotaxin-3, FGF (basic), GM-CSF, ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 \| Human Multiplex
V-PLEX Human Biomarker 39-Plex Kit CRP, Eotaxin, Eotaxin-3, FGF (basic), GM-CSF, ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 \| Human Multiplex
V-PLEX NHP IL-6 Kit IL-6 \| Non-human primate Singleplex
V-PLEX Plus NHP IL-6 Kit IL-6 \| Non-human primate Singleplex
V-PLEX Plus NHP Cytokine 24-Plex Kit Eotaxin, Eotaxin-3, GM-CSF, IFN-γ, IL-1β, IL-2, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-β, VEGF-A \| Non-human primate Multiplex
V-PLEX NHP Cytokine 24-Plex Kit Eotaxin, Eotaxin-3, GM-CSF, IFN-γ, IL-1β, IL-2, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-β, VEGF-A \| Non-human primate Multiplex
V-PLEX Neuroinflammation Panel 1 Human Kit CRP, Eotaxin, Eotaxin-3, FGF (basic), ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 \| Human Multiplex
V-PLEX Plus Neuroinflammation Panel 1 Human Kit CRP, Eotaxin, Eotaxin-3, FGF (basic), ICAM-1, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, PlGF, SAA, TARC, Tie-2, TNF-α, TNF-β, VCAM-1, VEGF-A, VEGF-C, VEGF-D, VEGFR-1/Flt-1 \| Human Multiplex
V-PLEX Plus Proinflammatory Panel 1 NHP Kit IFN-γ, IL-1β, IL-2, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Proinflammatory Panel 1 NHP Kit IFN-γ, IL-1β, IL-2, IL-6, IL-8, IL-10 \| Non-human primate Multiplex
V-PLEX Plus Mouse IL-6 Kit IL-6 \| Mouse Singleplex
V-PLEX Mouse IL-6 Kit IL-6 \| Mouse Singleplex
V-PLEX Plus Rat IL-6 Kit IL-6 \| Rat Singleplex
V-PLEX Rat IL-6 Kit IL-6 \| Rat Singleplex
V-PLEX Proinflammatory Panel 1 Mouse Kit IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12p70, KC/GRO, TNF-α \| Mouse Multiplex
V-PLEX Plus Proinflammatory Panel 1 Mouse Kit IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12p70, KC/GRO, TNF-α \| Mouse Multiplex
V-PLEX Human Cytokine 29-Plex Kit Eotaxin, Eotaxin-3, GM-CSF, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-α, TNF-β, VEGF-A \| Human Multiplex
V-PLEX Human IL-6 Kit IL-6 \| Human Singleplex
V-PLEX Plus Human IL-6 Kit IL-6 \| Human Singleplex
Human IL-6 Antibody Bulk Product IL-6
Rat IL-6 Antibody IL-6
Proinflammatory Panel 1 Rat Control Pack IFN-γ, IL-1β, IL-4, IL-5, IL-6, IL-10, IL-13, KC/GRO, TNF-α \| Rat
Proinflammatory Panel 1 Human Control Pack IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, TNF-α \| Human
Proinflammatory Panel 1 Mouse Control Pack IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12p70, KC/GRO, TNF-α \| Mouse
V-PLEX Plus Proinflammatory Panel 1 Human Kit IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, TNF-α \| Human Multiplex
V-PLEX Plus Human Proinflam. Panel II (4-Plex) IL-1β, IL-6, IL-8, TNF-α \| Human Multiplex
V-PLEX Plus Human Proinflam. Panel I (4-Plex) IFN-γ, IL-1β, IL-6, TNF-α \| Human Multiplex
V-PLEX Human Proinflammatory Panel II (4-Plex) IL-1β, IL-6, IL-8, TNF-α \| Human Multiplex
V-PLEX Human Proinflammatory Panel I (4-Plex) IFN-γ, IL-1β, IL-6, TNF-α \| Human Multiplex
V-PLEX Proinflammatory Panel 1 Human Kit IFN-γ, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, TNF-α \| Human Multiplex
V-PLEX Plus Human Cytokine 29-Plex Kit Eotaxin, Eotaxin-3, GM-CSF, IFN-γ, IL-1α, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-7, IL-8, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IP-10, MCP-1, MCP-4, MDC, MIP-1α, MIP-1β, TARC, TNF-α, TNF-β, VEGF-A \| Human Multiplex
V-PLEX Custom Rat Biomarkers Rat Multiplex
V-PLEX Custom Mouse Biomarkers Mouse Multiplex
Canine ProInflammatory Panel 3 Ultra-Sensitive Kit IL-2, IL-6, IL-8, TNF-α \| Canine Multiplex
U-PLEX Proinflam Combo 1 (mouse) IFN-γ, IL-1β, IL-2, IL-6, IL-10, IL-12p70, IL-17A, IP-10, MCP-1, TNF-α \| Mouse Multiplex
U-PLEX Custom Biomarker Group 1 (mouse) Assays 6CKine/CCL21, BAFF, BCA-1/BLC, CD40/TNFRSF5, Eotaxin, EPO, GM-CSF, IFN-α, IFN-β, IFN-γ, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-9, IL-10, IL-12/IL-23p40, IL-12p70, IL-13, IL-15, IL-16, IL-17A, IL-17A/F, IL-17C, IL-17E/IL-25, IL-17F, IL-21, IL-22, IL-23, IL-27p28/IL-30, IL-31, IL-33, IP-10, KC/GRO, MCP-1, MCP-5/CCL12, MDC, MIP-1α, MIP-1β, MIP-2, MIP-3α, MMP-9 (total), NGAL/LCN2, RANTES, SDF-1α, TARC, TNF-α, TNF-RI, VEGF-A \| Mouse Multiplex
U-PLEX CAR-T Cell Efficacy Combo 1 (human) Granzyme B, IFN-γ, IL-2, IL-6, IL-12p70, IP-10, Perforin, TNF-α \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) 384-well Assays BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, FGF (basic), FLT3L, Fractalkine, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, 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, IP-10, I-TAC, LAG3, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIP-1α, MIP-1β, MIP-5, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L2, PlGF, RANKL/TNFSF11, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, YKL-40 \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) Assays APRIL/TNFSF13, BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, E-Selectin, FGF (basic), FLT3L, Fractalkine, Galectin-9, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, HVEM/TNFRSF14, I-309, ICOS, ICOS-L/B7-H2, 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, IP-10, I-TAC, LAG3, LIGHT/TNFSF14, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIG, MIP-1α, MIP-1β, MIP-5, MMP-1, MMP-2, MMP-7, MMP-9 (total), Nectin-4, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L1 (epitope 2), PD-L2, Pentraxin 3, Perforin, PlGF, proMMP-9, P-Selectin, RAGE (soluble), RANKL/TNFSF11, RANTES, S100A12, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TNF-RI, TNF-RII, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, VEGFR-1/Flt-1, YKL-40 \| Human Multiplex
U-PLEX Immuno-Oncology Group 1 (human) Assays APRIL/TNFSF13, BAFF-R/TNFRSF13C, BCMA/TNFRSF17, CD20, CD27, CD28, CD40L (soluble), CD276/B7-H3, CTACK, CTLA-4, ENA-78, Eotaxin, Eotaxin-2, Eotaxin-3, EPO, E-Selectin, FGF (basic), FLT3L, Fractalkine, Galectin-9, G-CSF, GITR/TNFRSF18, GITRL/TNFSF18, GM-CSF, gp130 (soluble), Granzyme A, Granzyme B, GRO-α, HAVCR2/TIM-3, HVEM/TNFRSF14, I-309, ICOS, ICOS-L/B7-H2, 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, IP-10, I-TAC, LAG3, LIGHT/TNFSF14, MCP-1, MCP-2, MCP-4, M-CSF, MDC, MIF, MIG, MIP-1α, MIP-1β, MIP-5, MMP-1, MMP-2, MMP-7, MMP-9 (total), Nectin-4, OX40/TNFRSF4, PD1 (epitope 1), PD1 (epitope 2), PD-L1 (epitope 1), PD-L1 (epitope 2), PD-L2, Pentraxin 3, Perforin, PlGF, proMMP-9, P-Selectin, RAGE (soluble), RANKL/TNFSF11, RANTES, S100A12, Tie-2, TIGIT, TLR1, TNF-α, TNF-β, TNF-RI, TNF-RII, TPO, TRAIL, TSLP, VEGF-A, VEGF-D, VEGFR-1/Flt-1, YKL-40 \| Human Multiplex
Mouse IL-6 Antibody IL-6

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IL-6-independent association of elevated serum neopterin levels with prevalent frailty in community-dwelling older adult.

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