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To explore the relationship between microsomal triglyceride transfer protein (MT P) gene variation and diabetic dyslipidemia among Chinese Methods Using PCR restriction fragment length polymorphism (PCR RFLP) analysis and gene sequencing, we studied the influence of a common MTP gene polymorphism in the p romoter region on the apoB containing lipoproteins in 44 Chinese type 2 diabeti c subjects and 32 non diabetic volunteers Results A common functional G/T polymorphism in 493 bp upstream from the transcriptional start point was detected among native Chinese There were 41 carriers (53 9%) of the MTP 493 G/G genotype, 28 (36 8%) of the MTP 493 G/T genotype and 7 (9 3%) of the MTP 493 T/T genotype The allele frequency of M TP 493 T in the diabetic group was 0 30 The MTP 493 T/T diabetic group had significantly higher TG ( P <0 05), VLDL CH ( P <0 05) and smaller LDL pa rticle size ( P <0 001) than the MTP 493 common genotype group Conclusion Genetic variation in the MTP promoter is likely to be highly involved in the pro duction of dyslipidemia in type 2 diabetic subjects
To explore the relationship between microsomal triglyceride transfer protein (MT P) gene variation and diabetic dyslipidemia among Chinese Methods Using PCR restriction fragment length polymorphism (PCR RFLP) analysis and gene sequencing, we studied the influence of a common MTP gene polymorphism in the p romoter region on the apoB containing lipoproteins in 44 Chinese type 2 diabeti c subjects and 32 non diabetic volunteers Results A common functional G / T polymorphism in 493 bp upstream from the transcriptional start point was detected among native Chinese There were 41 carriers (53 9%) of the MTP 493 G / G genotype, 28 (368%) of the MTP 493 G / T genotype and 7 (93%) of the MTP 493 T / T genotype The allele frequency of M TP 493 T in the diabetic group was 0 30 The MTP 493 T / T diabetic group had significantly higher TG (P <0 05), VLDL CH (P <0 05) and smaller LDL pa rticle size (P <0 001) than the MTP 493 common genotype group Conclusion Gen etic variation in the MTP promoter is likely to be highly involved in the pro duction of dyslipidemia in type 2 diabetic subjects