The lactase gene -13910 T allele can not predict the lactase-persistence phenotype in north China  

Oleh:

Hai-Ming, Sun ; Yuan-Dong, Qiao ; Feng, Chen ; Li-Dan, Xu ; Jing, Bai ; Song-Bin, Fu

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Asia Pacific Journal of Clinical Nutrition (keterangan: ada di Proquest) vol. 16 no. 04 (2007), page 598.
Topik: lactase; lactose intolerance; China; population; polymorphism; single nucleotide

Ketersediaan

Perpustakaan FK Nomor Panggil: A27.K.2007.02 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

The frequency of lactase persistence varies widely in human populations. Study showed that the T allele of a C/T transition 13910bp upstream from exon 1 of lactase gene (LCT) was completely associated with lactase persistence in a Finnish population. To evaluate if the frequency of -13910T allele was in concordance with the lactase persistence in northern Chinese populations, in this study, we used Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) to detect the lactase -13910T allelic frequency in 5 northern Chinese populations for the first time. Results showed that the T allele frequency was low in these populations and that it did not match the lactase persistence phenotype in these populations. Therefore the -13910T allelic frequency can not serve as a predictor of the lactase persistence in these populations and this suggests the existence of other possible mechanisms of lactose tolerance in Chinese populations.

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