Add 100 µL standard or sample to each well. Incubate for 90 min at 37 °C.
Remove the liquid. Add 100 µL Biotinylated Detection Antibody. Incubate for 1 hour at 37 °C.
Aspirate and wash 3 times.
Add 100 µL HRP Conjugate. Incubate for 30 min at 37 °C.
Aspirate and wash 5 times.
Add 90 µL Substrate Reagent. Incubate for 15 min at 37 °C.
Add 50 µL Stop Solution. Read at 450 nm immediately.
Calculation of results.
Aufbereitung der Reagenzien
Bring all reagents to room temperature (18~25 °C) before use. Follow the Microplate reader manual for set-up and preheat it for 15 min before OD measurement.
Wash Buffer: Dilute 30 mL of Concentrated Wash Buffer with 720 mL of deionized or distilled water to prepare 750 mL of Wash Buffer.Note: if crystals have formed in the concentrate, warm it in a 40 °C water bath and mix it gently until the crystals have completely dissolved
Standard working solution: Centrifuge the standard at 10,000xg for 1 min. Add 1.0 mL of Reference Standard &Sample Diluent, let it stand for 10 min and invert it gently several times. After it dissolves fully, mix it thoroughly with a pipette. This reconstitution produces a working solution of 2000 pg/mL. Then make serial dilutions as needed. The recommended dilution gradient is as follows: 2000, 1000, 500, 250, 125, 62.5, 31.25, 0 pg/mL. Dilution method: Take 7 EP tubes, add 500 μLof Reference Standard & Sample Diluent to each tube. Pipette 500 μLof the 2000 pg/mL working solution to the first tube and mix up to produce a 1000 pg/mL working solution. Pipette 500 μLof the solution from the former tube into the latter one according to these steps. The illustration below is for reference. Note: the last tube is regarded as a blank. Don't pipette solution into it from the former tube.
Biotinylated Detection Antibody working solution: Calculate the required amount before the experiment (100 μL/well). In preparation, slightly more than calculated should be prepared. Centrifuge the stock tube before use, dilute the 100x Concentrated Biotinylated Detection Antibody to 1xworking solution with Biotinylated Detection Antibody Diluent.
Concentrated HRP Conjugate working solution: Calculate the required amount before the experiment (100 μL/well). In preparation, slightly more than calculated should be prepared. Dilute the 100x Concentrated HRP Conjugate to 1x working solution with Concentrated HRP Conjugate Diluent.
Aufbereitung der Proben
It is recommended to use fresh samples without long storage, otherwise protein degradation and denaturation may occur in these samples, leading to false results. Samples should therefore be stored for a short period at 2 - 8 °C or aliquoted at -20 °C (≤1 month) or -80 °C (≤ 3 months). Repeated freeze-thaw cycles should be avoided. Prior to assay, the frozen samples should be slowly thawed and centrifuged to remove precipitates.
If the sample type is not specified in the instructions, a preliminary test is necessary to determine compatibility with the kit.
If a lysis buffer is used to prepare tissue homogenates or cell culture supernatant, there is a possibility of causing a deviation due to the introduced chemical substance. The recommended dilution factor is for reference only.
Please estimate the concentration of the samples before performing the test. If the values are not in the range of the standard curve, the optimal sample dilution for the particular experiment has to be determined.
Testpräzision
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Mouse TNF-α were tested 20 times on one plate, respectively. Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Mouse TNF-α were tested on 3 different plates, 20 replicates in each plate. Both intra-CV and inter-CV are < 10 %.
Beschränkungen
Nur für Forschungszwecke einsetzbar
Lagerung
4 °C,-20 °C
Informationen zur Lagerung
For unopened kit: All reagents should be stored according to the labels on the vials, so they are stable up to 12 months after receipt of the kit. The Reference Standard, Biotinylated Detection Antibody, HRP Conjugate and the 96-well stripe plate should be stored at -20 °C upon receipt while the other reagents should be stored at 4 °C.
For used kit: When the kit is used, the remaining reagents need to be stored according to the above storage condition. Besides, please return the unused wells to the foil pouch containing the desiccant pack, and zip-seal the foil pouch.
Haltbarkeit
12 months
Yuan, Zhong, Liu: "Structural characterisation and immunomodulatory activity of a neutral polysaccharide from Sambucus adnata Wall." in: International journal of biological macromolecules, Vol. 154, pp. 1400-1407, (2021) (PubMed).
Bai, Yin, Dong, Dai, Qin, Ye, Du, Zhang, Chen, Shen: "Endothelial progenitor cell-derived exosomes ameliorate endothelial dysfunction in a mouse model of diabetes." in: Biomedicine & pharmacotherapy, Vol. 131, pp. 110756, (2021) (PubMed).
Han, Joo, Kim, Jeung, Kang, Kim: "Bifidobacteria-Fermented Red Ginseng and Its Constituents Ginsenoside Rd and Protopanaxatriol Alleviate Anxiety/Depression in Mice by the Amelioration of Gut Dysbiosis." in: Nutrients, Vol. 12, Issue 4, (2021) (PubMed).
Liu, Xiang, Gao, Yao, Ye, Wang: "The Inhibition of P-Selectin Reduced Severe Acute Lung Injury in Immunocompromised Mice." in: Oxidative medicine and cellular longevity, Vol. 2020, pp. 8430465, (2021) (PubMed).
Su, Pan, Wang, Li, Huang, Ma: "Saikosaponin-d attenuated lipopolysaccharide-induced depressive-like behaviors via inhibiting microglia activation and neuroinflammation." in: International immunopharmacology, Vol. 80, pp. 106181, (2021) (PubMed).
Sun, Zhao, Liu, Sun, Zhang, Wang, Xu, Zhang, Wang: "Modulation of Gut Microbiota by Fucoxanthin During Alleviation of Obesity in High-Fat Diet-Fed Mice." in: Journal of agricultural and food chemistry, Vol. 68, Issue 18, pp. 5118-5128, (2021) (PubMed).
Yan, Liu, Zhao, Pang, Wu, Ai, Zhao, Wang, Jiang, Shao, Liu, Li, Wang, Shi: "Novel Biomedical Functions of Surfactin A from Bacillus subtilis in Wound Healing Promotion and Scar Inhibition." in: Journal of agricultural and food chemistry, Vol. 68, Issue 26, pp. 6987-6997, (2021) (PubMed).
Zhang, Li, Chen, Ye, Xie, Xia, Yang: "MG-132 attenuates cardiac deterioration of viral myocarditis via AMPK pathway." in: Biomedicine & pharmacotherapy, Vol. 126, pp. 110091, (2021) (PubMed).
Zhuang, Yu, Jiang, Zhao, Wang, Su, Xie, Yu, Lu, Lv: "Molecular hydrogen attenuates sepsis-induced neuroinflammation through regulation of microglia polarization through an mTOR-autophagy-dependent pathway." in: International immunopharmacology, Vol. 81, pp. 106287, (2021) (PubMed).
Ding, Wang, Wu, Zhao, Wu: "Exosomes derived from synovial fibroblasts under hypoxia aggravate rheumatoid arthritis by regulating Treg/Th17 balance." in: Experimental biology and medicine (Maywood, N.J.), Vol. 245, Issue 14, pp. 1177-1186, (2021) (PubMed).
Zameer, Ali, Vohora, Najmi, Akhtar: "Development, optimisation and evaluation of chitosan nanoparticles of alendronate against Alzheimer's disease in intracerebroventricular streptozotocin model for brain delivery." in: Journal of drug targeting, Vol. 29, Issue 2, pp. 199-216, (2021) (PubMed).
Zhang, Xu, Yang, Li, Zhang, Deng, Zhu, Shen: "Kupffer cell inactivation ameliorates immune liver injury via TNF-α/TNFR1 signal pathway in trichloroethylene sensitized mice." in: Immunopharmacology and immunotoxicology, Vol. 42, Issue 6, pp. 545-555, (2020) (PubMed).
Cui, Naveed, Baig, Wang, Mikrani, Liu, Ahmad, Tang, Wazir, Zhou, Han: "Therapeutic effects of Qianlie Tongli decoction on chronic prostatitis/chronic pelvic pain syndrome induced by peptide T2 in mice." in: The Journal of pharmacy and pharmacology, Vol. 72, Issue 10, pp. 1436-1444, (2020) (PubMed).
Zhang, Ji, Zhou, Li: "Irisin Pretreatment Protects Kidneys against Acute Kidney Injury Induced by Ischemia/Reperfusion via Upregulating the Expression of Uncoupling Protein 2." in: BioMed research international, Vol. 2020, pp. 6537371, (2020) (PubMed).
Ore, Ugbaja, Adeogun, Akinloye: "An albino mouse model of nonalcoholic fatty liver disease induced using high-fat liquid "Lieber-DeCarli" diet: a preliminary investigation." in: Porto biomedical journal, Vol. 5, Issue 4, pp. e071, (2020) (PubMed).
Zhang, Zheng, Shi, Guo, Xu, Li, Huang, Li: "Design, Synthesis and Investigation of the Potential Anti-Inflammatory Activity of 7-O-Amide Hesperetin Derivatives." in: Molecules (Basel, Switzerland), Vol. 24, Issue 20, (2020) (PubMed).
Yu, Xu, Meng, Li, Liu, Bai, You, Huang, Yang, Zhang, Jia, Zhang: "Nuclear receptor PXR targets AKR1B7 to protect mitochondrial metabolism and renal function in AKI." in: Science translational medicine, Vol. 12, Issue 543, (2020) (PubMed).
Amin, Bughdadi, Abo-Zaid, Ismail, El-Agamy, Alqahtani, El-Sayyad, Rezk, Ramadan: "Immunomodulatory effect of papaya (Carica papaya) pulp and seed extracts as a potential natural treatment for bacterial stress." in: Journal of food biochemistry, Vol. 43, Issue 12, pp. e13050, (2020) (PubMed).
Jiang, Wang, Liang, Nie, Chang, Xue, Li, Min: "Intranasal MMI-0100 Attenuates Aβ1-42- and LPS-Induced Neuroinflammation and Memory Impairments via the MK2 Signaling Pathway." in: Frontiers in immunology, Vol. 10, pp. 2707, (2020) (PubMed).