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3 protocols using dulbecco s modified eagle culture medium dmem

1

LPS and Collagenase Induced Inflammation

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Lipopolysaccharide (LPS) and type I collagenase were purchased from Sigma-Aldrich Co. Ltd. (Sigma, MO, USA). Trizol, Dulbecco's modified Eagle culture medium (DMEM), penicillin-streptomycin mixture, and fetal bovine serum (FBS) were purchased from Gibco (Rockville, USA). The primary antibodies of β-actin, NGF, TrKA, TRPV1, IL-1β, and PGP 9.5 were purchased from Bioss (Beijing China). The Sirius red staining kit and goat anti-rabbit IgG H&L (HRP) kit were also purchased from Abcam (Cambridge, UK). 5 × HiScript II qRT SuperMix and 2 × Chamq SYBR qPCR MasterMix were purchased from Vazyme (Nanjing, China). Primers were supplied by Generay Biotechnology (Shanghai, China). ELISA kits for NGF and SP were purchased from JinyiBai Company (Nanjing, China).
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2

Chrysin Modulates Inflammatory Pathways

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Chrysin (>98% purity) was obtained from Yuanye (Shanghai, China). Chrysin was dissolved in dimethylsulfoxide (<1‰ DMSO) and freshly diluted in culture media for all in vitro experiments. Monoiodoacetic acid, lipopolysaccharide (LPS), type I collagenase and DMSO were all obtained from Sigma-Aldrich (Sigma, St.Louis, MO, USA). TRIzol, Dulbecco’s Modified Eagle Culture Medium (DMEM), Penicillin-Streptomycin mixture, fetal bovine serum (FBS) were purchased from Gibco (Rockville, USA). The primary antibodies for GAPDH, NLRP3, Caspase-1, Interleukin-18, Interleukin-1β and ASC were all purchased from Abcam (Cambridge, UK). Antibodies for c-Fos were purchased from Servicebio (Wuhan, China). Picro Sirius Red Stain kit and Goat anti-rabbit IgG H&L (HRP) were also supplied by Abcam (Cambridge, UK). In addition, 5×HiScript II qRt SuperMix and 2×ChamQ SYBR qPCR MsterMix (Low ROX Premixed) were obtained from Vazyme (Nanjing, China). The primers were supplied by Sangon Biotech (Shanghai, China). Caspase-1 Activity Assay Kit and Cell-Counting Kit-8 were obtained from Solarbio (Beijing, China). Enzyme-linked immunosorbent assays (ELISA) kits for Interleukin-1β and Interleukin-18 were supplied by Invitrogen (Life Technologies Corp., California, USA). ELISA kits for CGRP and SP were supplied by Jin Yibai (Nanjing, China).
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3

Antibacterial Efficacy and Cytotoxicity Assay

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Multiresistant strains of Staphylococcus aureus 10, Pseudomonas aeruginosa 24, and Escherichia coli 06 were supplied by the Laboratory of Microbiology and Molecular Biology of the Regional University of Cariri—URCA (Crato—CE, Brazil). The Chinese hamster ovary cell line (CHO-K1 cells) was purchased from ATCC® CCL-61™ (American Type Culture Collection), and Dulbecco’s Modified Eagle Culture Medium (DMEM; Gibco, Gaithersbug, MD, USA) was used, while 3–4,5-Dimethyl-thiazol-2-yl-2,5-diphenyltetrazolium bromide (MTT) was purchased from Invitrogen (MTT; Invitrogen, Oregon, USA).
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