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19 protocols using e el r0015c

1

ELISA for Rat IL-6 and TNF-α

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IL-6 and TNF-α levels in the serum of rats and cells were measured using a rat IL-6 ELISA kit (E-EL-R0015c; Elabscience, Wuhan, China) and a rat TNF-α ELISA kit (E-EL-R2856c; Elabscience) respectively according to the manufacturer’s instructions.
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2

High-Fat Diet Induced Gut Barrier Dysfunction

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The high-fat diet (HFD, D12492) chow was purchased from Beijing Huafukang Bioscience; standard rat chow (SRC) was offered by the experimental animal center of Wuhan University Renmin Hospital. Rat ELISA kits of interleukin- (IL-) 1β (E-EL-R0012c) and IL-6 (E-EL-R0015c) were purchased from Elabscience (Wuhan, China). Diamine oxidase (DAO) assay kit (A088-1) and endotoxin assay kit (E039-1-1), reduced form of glutathione (GSH) assay kit (A006-2-1) and maleic dialdehyde (MDA) assay kit (A003-1-2), and superoxide dismutase (SOD) assay kit (A001-2-2) were purchased from Nanjing Jiancheng Bioengineering Institute (Nanjing, China). Zonula occluden-1 (Zo-1) (21773-1-AP) and occludin (27260-1-AP) antibodies were purchased from Proteintech (Wuhan, China); RIP3 (ab56164) and TNF-α (ab6671) antibodies were purchased from Abcam (Cambridge, UK); TLR4 (GB11519), NF-κB P65 (GB11142), and β-actin (GB11001) antibodies were purchased from Servicebio (Wuhan, China). TAK242 (HY-11109), an inhibitor of TLR4, was purchased from MCE (Shanghai, China).
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3

Quantification of Hippocampal IL-1β and IL-6

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Rats were killed with overdose pentobarbital sodium after the 7-day house and hippocampus tissues were collected. The production of IL-1β (E-EL-R0012c, Elabscience Biotechnology, Wuhan, China) and IL-6 (E-EL-R0015c, Elabscience Biotechnology, Wuhan, China) in hippocampus tissues was detected using corresponding ELISA kits according to the manufacturer’s instructions: briefly, hippocampus tissues were homogenized and then 100-μl sample was incubated in one well of ELISA plate at 37°C for 90 min Afterward, 100 μl biotinylation antibody was added into the well and incubated at 37°C for 60 min. Then 100 μl enzyme-binding solution was added into the mixture and incubated at 37°C for 30 min. Finally, 50 μl TMB substrate was added and incubated at 37°C for 30 min. The OD values at 450 nm of different samples were detected using a Microplate Reader (MULTISKAN MK3, Thermo).
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4

Quantifying CIRP and Inflammatory Factors

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The CIRP concentrations in the human and rat serum were detected using CIRP ELISA kits (SEG886Hu and SEG886Ra, Cloud-Clone Corp.) according to the manufacturer's protocol. The concentration difference of CIRP in the human serum between the two time points was recorded as ΔCIRP. The ELISA kits for interleukin 6 (IL-6, E-EL-H0102c and E-EL-R0015c, Elabscience), IL-1β (E-EL-H0149c and E-EL-R0012c, Elabscience), and tumor necrosis factor alpha (TNF-α, E-EL-H0109c and E-EL-R2856c, Elabscience) were used to detect inflammatory factors in the rat serum and the cell culture medium.
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5

Measurement of Inflammatory Cytokines in Rat Plasma

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The level of IL-1, IL-6, IFN, and TNF-α in the plasma of rats was measured by ELISAs. IL-1 (E-EL-R0012c), IL-6 (E-EL-R0015c), IFN (E-EL-R0009c), and TNF-α (E-EL-R0019c) ELISA kits were purchased from Elabscience (Wuhan, China). The procedures were conducted according to the instruction manuals for the kits. Sterile PBS was used as the control.
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6

Anti-inflammatory Pathway Regulation

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SB203580 (Cat. HY-10256) was purchased from MedChemExpress (Monmouth, NJ, America). Lipopolysaccharide was purchased from Sigma (Cat. L4130, St. Louis, MO, America). Antibodies for MAPK14 (Cat. 8690S) and β-actin (Cat. 4970S) were purchased from Cell Signaling Technology (Danvers, Massachusetts, America). Cell counting kit-8 (Cat. C0038) was purchased from Beyotime Biotechnology (Shanghai, China). Enzyme-linked immunosorbent assay (ELISA) detection kit of pro-inflammatory cytokines TNF-α (E-EL-R2856c), interleukin (IL)-6 (E-EL-R0015c), and IL-1β (E-EL-R0012c) were purchased from Elabscience (Wuhan, China). In situ cell death detection kit (Cat. 11684795910) was purchased from Roche (Huntsville, German).
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7

Multiplex Protein Detection in Biological Fluids

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Cold‐inducible RNA‐binding protein (SEG886Hu and SEG886Ra, Cloud‐Clone Corp.), mitochondrial transcription factor A (TFAM; SEH050Hu, Cloud‐Clone Corp.), interleukin 6 (IL‐6; E‐EL‐H0109c and E‐EL‐R0015c, Elabscience), interleukin 1 beta (IL‐1β; E‐EL‐R0012c, Elabscience), tumour necrosis factor‐alpha (TNF‐α; E‐EL‐R2856c, Elabscience) and high mobility group protein B1 (HMGB1; E‐EL‐R0505c, Elabscience) ELISA kits were used to detect these molecules in the UW solution, human serum and rat serum.
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8

Comprehensive Serum Biomarker Profiling

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Enzyme-linked immunosorbent assay (ELISA) kits were used to measure the serum concentrations of HSP70 (DYC1663E, Minneapolis, MN, USA), follicle stimulating hormone (FSH)(CSB-E06869r, Cusabio Biotech CO.,Ltd., Wuhan, China), luteinizing hormone (LH) (CSB-E12654r, Cusabio Biotech CO.,Ltd., Wuhan, China), estradiol (E2) (CSB-E05110r, Cusabio Biotech CO.,Ltd., Wuhan, China), progesterone (P) (CSB-E07282r, Cusabio Biotech CO.,Ltd., Wuhan, China), testosterone (T)(E-EL-0072c, Elabscience Biotechnology Co.,Ltd., Wuhan, China), insulin (CSB-E05070r, Elabscience Biotechnology Co.,Ltd., Wuhan, China), C-reactive protein (CRP) (E-EL-R0022c, Elabscience Biotechnology Co.,Ltd., Wuhan, China), interleukin (IL)-6(E-EL-R0015c, Elabscience Biotechnology Co.,Ltd., Wuhan, China), IL-18(E-EL-R0567c, Elabscience Biotechnology Co.,Ltd., Wuhan, China), tumor necrosis factor (TNF)-α. (E-EL-R0019c, Elabscience Biotechnology Co.,Ltd., Wuhan, China). There were standard curves used to calculate for all these kits. The coefficients of variation within and between plates were less than 10%.
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9

Cytokine Profiling in Serum

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The levels of interleukin (IL)-6 (E-EL-R0015c; Elabscience, China), IL-1β (E-EL-R0012c; Elabscience), and IL-18 (E-EL-R0567c; Elabscience) in the serum were determined using ELISA kits and the 96-well plates placed into a multimode reader (SYNERGR LX; BioTEK).
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10

Blood Sampling and ELISA Analysis in Rat Model

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On the 3rd day, after HRV monitoring, 6 rats from each group were anesthetized with isoflurane inhalation [17 (link), 18 (link)]; then, the chest cavity was dissected, and 2 mL of blood was taken from the right atrium for ELISA and 2 mL for flow cytometry (FCM). For ELISA, blood was preserved at room temperature for 2 h prior to centrifugation at 3000 r/min at 4°C for 10 min; then, the upper layer of the serum was separated and stored in the refrigerator at -80°C for detection. For FCM, fresh blood was taken for testing. According to the manufacturer's instructions [19 (link)], the serum levels of TNF-α, IL-1α, IL-10, IL-6, HMGB1, and sCD14 were determined with ELISA.
The main related antibodies include: rat anti-TNF-α (lot number: E-EL-R0019c, manufacturer: Elabscience), rat anti-IL-1α (lot number: E-EL-R0011c, manufacturer: Elabscience), rat anti-IL-6 (lot number: E-EL-R0015c, manufacturer: Elabscience), rat anti-IL-10 (lot number: E-EL-R0016c, manufacturer: Elabscience), rat anti-HMGB-1 (lot number: E-EL-R0505c, manufacturer: Elabscience), and rat anti-sCD14 (lot number: CSB-E11178r, manufacturer: Cusabio).
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