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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Expression of hexokinase 1 and hexokinase 2 in mammary tissue of nonlactating and lactating rats: evaluation by RT-PCR.

Because the initial step in the metabolism of glucose involves phosphorylation by hexokinase (HK), we tested the hypothesis that the expression of the isozymes, hexokinase type 1 (HK1) and hexokinase type 2 ( HK2), would be different in rat mammary tissue during pregnancy and lactation. RNA was extracted from mammary tissue dissected from timed pregnant rats (from gestional days 10 to 21) and nursing rat mothers (up to postnatal day 5) for mRNA examination by reverse transcriptase and polymerase chain reaction (RT-PCR) using isozyme specific oligonucleotide primers to the HK1 and HK2 cDNAs. The HK1 mRNA was expressed in both the nonlactating and lactating mammary gland tissue, but HK2 mRNA was found only during lactation. We speculate that the pattern of HK expression might affect human milk production and quality.[1]

References

  1. Expression of hexokinase 1 and hexokinase 2 in mammary tissue of nonlactating and lactating rats: evaluation by RT-PCR. Kaselonis, G.L., McCabe, E.R., Gray, S.M. Mol. Genet. Metab. (1999) [Pubmed]
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