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Penicillin streptomycin antibiotics

Manufactured by Welgene
Sourced in United Kingdom

Penicillin-streptomycin antibiotics are a combination of two commonly used antibiotic agents, penicillin and streptomycin. They are used to inhibit the growth of a wide range of bacteria in various laboratory and research applications.

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2 protocols using penicillin streptomycin antibiotics

1

Caco-2 Cell Viability Assay with AE-GBE

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Caco-2 cells were grown in 37 °C with 5% CO2 in MEM medium containing 25 mM HEPES (Welgene, Daegu, Korea), 10% FBS (Gibco, Paisley, UK), and 1% penicillin-streptomycin antibiotics (welgene). For cell toxicity assay on AE-GBE, the cells were treated with AE-GBE at different concentrations of 50, 100, 250, 500, and 1000 μg/mL for 24 h. Then, MTT (Duchefa Biochemie BV, Haarlem, Netherlands) of 0.5 mg/mL concentration was added to each plate and further cultured for 2 h; after removal of the supernatant, insoluble formazan crystals were dissolved in 2-propanol and measured at 540 nm (TECAN Group Ltd., Shanghai, China). As another method to analyse cell viability, ATP levels in the cells were measured with the Perkin-Elmer ATPLite system (PerkinElmer Life Sciences, Boston, MA, USA), according to the manufacturer’s instructions [20 (link)]. This system was based on the production of light caused by the reaction of ATP with added luciferase and D-luciferin. The attached mammalian cell lysis solution releases the adenine nucleotides and inactivates endogenous ATP degrading enzymes.
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2

C2C12 Myoblast Culture with Isorhamnetin

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C2C12 myoblasts obtained from American Type Culture Collection (Manassa, VA, USA) were grown in Dulbecco's modified Eagle's medium (DMEM, WelGENE Inc., Daegu, Republic of Korea) supplemented with 10% fetal bovine serum (FBS) and 100 μg/ml penicillin/streptomycin antibiotics (WelGENE Inc.) in a humidified 5% CO 2 atmosphere at 37°C. Isorhamnetin (Figure 1A, Sigma-Aldrich Co., St. Louis, MO, USA) was dissolved in dimethyl sulfoxide (DMSO, Sigma-Aldrich) and adjusted to the final concentrations using complete DMEM prior to use; the final DMSO concentration was <0.1% in all experiments.
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