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3 4 5 dimethylthiazol 2 yl 2 5 diphenyltetrazolium

Manufactured by Merck Group
Sourced in United States, Germany

3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium is a colorimetric assay compound used for the quantification of cellular metabolic activity. It is a yellow tetrazolium salt that is reduced by metabolically active cells to produce a purple formazan product.

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12 protocols using 3 4 5 dimethylthiazol 2 yl 2 5 diphenyltetrazolium

1

Evaluation of Anti-Inflammatory Compounds

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Isoliquiritin, Isoliquiritinapioside, Glycyrrhetinic acid, Liquiritinapioside, Isoliquiritigenin, and Liquiritin (all of purity above 98% by HPLC) were purchased from Tauto Biotech (Shanghai, China). Recombinant mouse IFN-γ was purchased from R&D Systems (Minneapolis, MN, USA). Lipopolysaccharide (from Escherichia coli 0111:B4 γ-irradiated), 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium (MTT), L-N6-(1-Iminoethyl)lysine hydrochloride (L-NIL), and Matrigel were purchased from Sigma (St Louis, MO, USA). ELISA for NF-κB p50/p65 EZ-TFA transcription factor assay kit was purchased from Millipore (Bedford, MA, USA). 3-Nitrotyrosine ELISA Kit was purchased from Abcam (Cambridge, MA, USA). Antibodies used in this study include murine iNOS monoclonal antibody (BD Transduction Laboratories, Lexington, KY), GAPDH polyclonal antibody (Santa Cruz Biotechnology, Santa Cruz, CA), phosphor-p38, p38, phosphor-JNK, JNK, phosphor-ERK1/2 and ERK1/2, phosphor-JAK2, JAK2, phosphor-STAT3, and STAT3 polyclonal antibodies (Cell Signaling Technology, Beverly, MA, USA). RPMI-1640 was purchased from Gibco Invitrogen Corporation (Grand Island, NY, USA). Fetal bovine serum (FBS) was purchased from Hyclone (Logan, UT, USA); TRIzol Reagent, Reverse Transcription Kit, and SYBR Green PCR Master Mix regents were obtained from Invitrogen (Carlsbad, CA, USA).
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2

Apoptosis and Oxidative Stress Assay

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This study was performed using the following items: Annexin V-FITC apoptosis/necrosis detection kit and fluorescent probe 2′,7′-dichlorofluorescein diacetate (DCFH-DA) (Abcam, USA), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium (MTT) and propidium iodide (PI) ( Sigma, USA), RPMI 1640, FBS (fetal bovine serum), penicillin and streptomycin (Gibco, USA), rabbit polyclonal Hsp70 antibody, rabbit polyclonal Hsp90 antibody, anti-rabbit IgG horseradish peroxidase-conjugated antibody, mouse monoclonal β-actin antibody, (Cell signaling, USA), polyvinylidene fluoride (PVDF) membrane (Bio-Rad, USA) and enhanced chemiluminescnces (ECL) reagent for western blot detection (Pierce).
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3

Astaxanthin Modulates Rat Aortic Smooth Muscle Cell Homeostasis

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Rat aortic smooth muscle cells (A7r5) were obtained from American Type Culture Collection (ATCC). Astaxanthin, Alizarin red, and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) were all purchased from Sigma-Aldrich (St. Louis, MO, USA) and were of analytical grade. The calcium quantitation kit was retrieved from Abcam (ab102505; Cambridge, UK). ROS amounts were measured using the kit from Abcam (ab113851). For knockdown of target genes, we harnessed siRNAs from Dharmacon (ON-TARGET plus SMARTpool, ThermoFisher Scientific, Waltham, MA, USA). Sequences of primers used for quantitative real-time polymerase chain reaction (RT-PCR) of target genes are shown in Table 1. Antibodies used for Western blotting were as follows: primary antibodies against SOD2 and β-actin were from Genetex (GTX116093; Irvine, CA, USA) and Novus (NB600-501; Littleton, CO, USA), respectively, while secondary goat anti-rabbit antibodies were from R&D Systems (HAF008; 1:5000 dilution; Minneapolis, USA). All experiments were carried out with biologic triplicates at least.
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4

Mitochondrial Dysfunction Assays

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All chemicals were purchased without further purification. Dequalinium chloride, oligomycin, adenosine 5′-triphosphate (ATP) disodium salt hydrate, cytidine 5′-triphosphate disodium salt (CTP), guanosine 5′-triphosphate sodium salt hydrate (GTP), uridine 5′-triphosphate tris salt (UTP), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT), sodium dodecyl sulfate (SDS), deoxycholic acid, phenylmethylsulfonyl fluoride (PMSF), and ethidium bromide (EB) were purchased from Sigma-Aldrich. PMSF Protease Inhibitor, MitoTracker Green, methanol, dimethyl sulfoxide (ACS certified) and JC-1 dye were purchased from Fisher Scientific. Phosphate-buffered saline (PBS) was purchased from Corning and Opti-MEM was purchased from Gibco. Dulbecco's modification of Eagle's medium (DMEM) was prepared by Dr Sandra McMasters of the University of Illinois School of Chemical Sciences Cell Media Facility. All experiments were performed at room temperature unless mentioned otherwise.
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5

Lipase-Catalyzed Eicosapentaenoic Acid Synthesis

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Eicosapentaenoic acid, Griess reagents, and nitrite standard were obtained from Cayman Chemical (Ann Arbor, MI, USA). Novozym®435 (consisting of immobilized Candida antarctica Lipase B) was supplied by Novozymes A/S (Bagsværd, Denmark). Lipopolysaccharide (O111:B4; LPS), dopamine hydrochloride, 2-methyl-2-butanol, triethylamine, phorbol 12-myristate 13-acetate (PMA), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT), dimethyl sulphoxide (DMSO), glutamine, HEPES and 2-mercaptoethanol were from Sigma-Aldrich (Schnelldorf, Germany). Dulbecco’s modified Eagle’s medium (DMEM), Roswell Park Memorial Institute 1640 (RPMI-1640) medium, penicillin, streptomycin, and fetal bovine serum (FBS) were purchased from Lonza (Verviers, Belgium). ELISA kits for interleukin-6 (IL-6), macrophage-inflammatory protein-3α (MIP3A), inflammatory chemokine monocyte chemotactic protein-1 (MCP-1), were purchased from R&D Systems (Abingdon, UK).
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6

Adipocyte Differentiation Assay Protocol

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3-Isobutyl-1-methylxanthine (IBMX), dexamethasone (DEX), insulin, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT), Oil Red O, dimethyl sulfoxide (DMSO), m-hydroxyphenylglycine, p-aminophenol, ellagic acid, and 4-hydroxycoumarin were purchased from Sigma Chemical Co. (St. Louis, MO, USA). Erycibelline was purchased from ChemFaces (Wuhan, China). 5-Hydroxy-2-pyridinemethanol was purchased from IS Chemical Technology (Shanghai, China). Dulbecco's Modified Eagle's Medium (DMEM), bovine serum (BS), and fetal bovine serum (FBS) were purchased from Invitrogen Inc. (Grand Island, NY, USA). All other chemicals were analytical reagent grade.
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7

Adipocyte Differentiation Evaluation Protocol

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3-Isobutyl-1-methylxanthine (IBMX), dexamethasone (DEX), insulin, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium (MTT), Oil Red O, dimethyl sulfoxide (DMSO), and ellagic acid (EA) were purchased from Sigma Chemical Co. (St. Louis, MO, USA). Dulbecco’s modified Eagle’s medium (DMEM), bovine serum albumin (BSA), and fetal bovine serum (FBS) were purchased from Invitrogen, Inc. (Grand Island, NY, USA). All other chemicals were of analytical reagent grade.
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8

Evaluating Ginseng's Anti-Inflammatory and Adipogenic Effects

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Two-year-old whole hydroponic ginseng (HPG) were purchased from Chungjung–Saessacksam Company, Gwangju, Republic of Korea. RAW 264.7 cells were purchased from Korean Cell Line Bank (Seoul, Korea) and 3T3-L1 cells were taken from American Type Culture Collection (ATCC), Rockville, USA. The media, Man Rogosa Sharpe (MRS) broth was purchased from Difco Laboratories, Detroit, MI, USA. The reagents, 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium (MTT), insulin, dexamethasone, lipopolysaccharide (LPS), 3-isobutyl-1-methylxanthine (IBMX), and Oil Red O (ORO) were purchased from Sigma-Aldrich Co., St. Louis, MO, USA. Dulbecco’s modified Eagle’s medium (DMEM), penicillin-streptomycin solution, and fetal bovine serum (FBS) were purchased from HycloneTM (Logan, UT, USA).
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9

Investigating Anticancer Potency of HDAC Inhibitors

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Vincristine and suberoylanilide hydroxamic acid (SAHA) were purchased from Sigma Chemical Co. (St. Louis, MO, USA), and tubastatin A (HDAC6 inhibitor) was synthesized from Dr. Jing-Ping Liou (Taipei Medical University, Taiwan). The above drugs were dissolved in DMSO (dimethylsulfoxide) and then preserved at −20 °C. Rhodamine 123, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium, propidium iodide, anti-β-tubulin, FITC-conjugated anti-mouse IgG, and all of the other chemical reagents used in this study were purchased from Sigma Chemical (St. Louis, MO, USA) and of analytical grade. Primary antibodies against Cdc2 (pY15), aurora B, caspase 8, caspase 9, HDAC1, HDAC2, HDAC3, HDAC4, and Bid were all purchased from Cell Signaling Technology (Beverly, MA); cyclin B, Cdc25C, Cdc2, PARP, Mcl-1, Bcl-2, Bcl-xl, and secondary antibodies were purchased from Santa Cruz (Santa Cruz, CA, USA); MPM2 (pSer/Thr) and H3 (pS10) were purchased from Upstate Biotechnology (Lake Placid, NY, USA); PLK (pT210), caspase 6, and caspase 7 were purchased from BD Biosciences (San Jose, CA, USA); caspase 3 was purchased from Imgenex (San Diego, CA, USA); acetyl-histone 3 was purchase from Millipore (Billerica, MA, USA); and an internal control, GAPDH, was purchased from Novus Biologicals (Littleton, CO, USA). Vectashield® mounting medium with DAPI was purchased from Burlingame, CA, USA.
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10

Apoptosis Assay Protocol

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RO3280 was purchased from Selleckchem (Houston, TX, USA). Z‐VAD‐FMK was purchased from R&D Systems (Minneapolis, MN, USA). 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyltetrazolium bromide (MTT) and trypan blue solution were purchased from Sigma‐Aldrich (St. Louis, MO, USA). The Annexin V‐PI Kit was purchased from BD (Franklin Lakes, NJ, USA).
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