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Methods Mol Biol. 2013;1024:191-201. doi: 10.1007/978-1-62703-453-1_15.

Purification of RNA from milk whey.

Author information

1
Nutritional Science Institute, Morinaga Milk Industry Co. Ltd., Kanagawa, Japan.

Abstract

MicroRNAs (miRNAs) are small regulatory RNA molecules that modulate specific target mRNAs and play very important roles in physiological processes. They were recently detected in body fluids such as blood, urine, saliva, and milk. These body fluid miRNAs have been studied thoroughly as potential diagnostic biomarkers. However, there have been few studies of milk miRNAs, and their roles are not clearly understood. Milk is the only nutritional source for newborn infants, and bovine milk is used widely as a dairy product. Thus, it is important to study milk miRNAs. In general, body fluid RNA concentrations are extremely low and of diverse existence types. In this chapter, we compare two silica membrane column-based RNA purification kits, and also compare RNA obtained directly from whey with that isolated from whey-derived exosomes.

PMID:
23719952
DOI:
10.1007/978-1-62703-453-1_15
[Indexed for MEDLINE]

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