This DMEM-Hi glucose medium differs from the original formula, because it is supplemented with L-alanyl-L-glutamine dipeptide. Glutamine is notoriously unstable in cell culture. This dipeptide provides a more stable form of glutamine for use in cell cultures. It also differs from the original DMEM-Hi formulation wherein pyridoxine is substituted for pyridoxal. Pyridoxal is an unstable component of media.
Application
El medio de Eagle modificado de Dulbecco (DMEM) es una modificación del medio basal Eagle (BME) que contiene el cuádruple de concentraciones de aminoácidos y vitaminas. La formulación original contenía 1000 mg/l de glucosa y se utilizaba para cultivar células embrionarias de ratón. Desde entonces, se ha modificado de varias formas para soportar cultivos primarios de células de ratón y de pollo, así como una variedad de células normales y transformadas. Cada uno de estos medios ofrece una combinación diferente de L-glutamina y piruvato sódico. Además, los niveles de glucosa se han elevado a 4 500 mg/l, lo que contribuye al nombre «DMEM/High».
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Medical science monitor : international medical journal of experimental and clinical research, 26, e927305-e927305 (2020-10-24)
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