Table 1. Nucleotide sequences of primers used for RT-PCR.

		Primer sequences
Gene	GeneBankaccession No.	Forward	Reverse
ZIP-1	NM.014437	GATTGGGGAAGACACTTGACTGCT	GAAAGAGGAAGGGGATTTGTTTGG
ZnT-1	NM.021194	GCATCAGTTTATGAGGCTGGTCCT	CAGGCTGAATGGTAGTAGCGTGAA
MT-1	NM.005946.2	ATGGACCCCAACTGCTCCTGC	GGCACAGCAGCTGCACTTCTC
MTF-1	NM.005955.2	CCACAACACAATGGATCAGAGGA	GAGTTGGCACCCAGGGGCAG