ABSTRACT
Objective To investigate the relationship between polymorphisms of gene promoter region INS 5′UTR single nu-cleotide and type 2 diabetes and serum IAA-Ab levels.Methods By Sequenom MassArray SNP genotyping detection technology, INS 3 pyomter regime single nucleotide polymorphisms (rs689,rs714641 77 and rs3842738)of 497 patients in Chongqing with type 2 diabetes cases(treatment group)and 500 cases(control group)were genotyped and analyzed.IAA-Ab levels in diabetes patients was detected.Theχ2 test statistic was used to analyze the treatment group and control groups.The genotype frequency distribution of IAA-Ab-positive and negative groups SNP was analyzed by non-conditional logistic regression,adjusted for sex,age impact,cal-culated the odds ratio (OR)and 95 % confidence interval(CI ).The polymorphic loci with type 2 diabetes susceptibility and serum GAD-Ab levels was evaluated.Results The genotype frequency distribution of rs689AA,TT and AT was 58.75%,28.77% and 12.47%,respectively.The control group are 50.40%,35.60% and 14.00% respectively.The difference was statistically significant (χ2 =3.923,P <0.05).Compared with the genotype of AA,TT genotype can decrease risky of diabetes,with OR values 0.35(95%CI :0.18-1.06).There was significant difference of AA,TT,AT genotypes between IAA-Ab negative and IAA-Ab positive pa-tients (P < 0.05 ).Conclusion INS polymorphisms might be related to the risky of type 2 diabetes and serum IAA-Ab level in chinses population.
ABSTRACT
Objective:To map the approximate transcription factors binding site of Visfatin and identify its potential promoter region.Methods:All reported transcripts of Visfatin were collected through searching online database.Visfatin gene were analysed by CpG/CpGReport/Isochore and FirstEF to predict the CpG island and possible first exon,respectively.The Visfatin gDNA sequence was also analysed by softwares such as PromoterScan to predict the probable promoter region.Matlspector、TFSEARCH and Match were used to predict potential transcription factors binding sites.Results:Among all the reported transcripts of Visfatin,5'UTR of NM_005746 Was the longest.Visfatin gene Was a typical CpG island associated gene.Promoters were predicted in the NM_005746 5'upstream 229～798bp region.In this region,a lot of cis-acting element were found. Conclusion:The transcription initiation site of Visfatin have been indentifiod.A lot of transcription factors binding sites were predict in the NM 005746 5' upstream 229-798bp region.It is important to definite those transcription factors binding sites through experimental methods.