This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without...This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without cerebral infarction （T2DM）, 220 type 2 diabetic patients with cerebral infarction （T2DMCI） and 340 healthy subjects were recruited from the same region （Hubei province, China）. The genotype of apoA5 -1131T〉C was analyzed by polymerase chain reaction, followed by restriction fragment length polymorphism （PCR-RFLP）. Total cholesterol, HDL cholesterol, LDL-cholesterol and triglycerides were quantitatively detected by using standard enzymatic tech- niques. The results showed that the prevalence of the apoA5 -1131C allele was significantly higher in T2DMCI group than that in control group （42.7% versus 31.2%, P〈0.01）. The carriers of rare C allele had higher TG levels as compared with carriers of common allele in the three groups （P〈0.01）. Logistic regression models, which were adjusted for age, gender, blood pressure, BMI, FBS, smoking, LDL-C and HDL-C, revealed that patients carrying the apoA5 -1131C allele and CC homozygotes were at high risk for T2DMCI. It was concluded that the apoA5 -1131C allele variant is an independent genetic risk factor for T2DMCI.展开更多
Objectives Apolipoprotein(Apo) A5 gene poly-morphisms and alcohol consumption have been associated with increased serum triglyceride(TG) levels,but little is known about their interactions on serum lipid levels.The pr...Objectives Apolipoprotein(Apo) A5 gene poly-morphisms and alcohol consumption have been associated with increased serum triglyceride(TG) levels,but little is known about their interactions on serum lipid levels.The present study was undertaken polymorphismsand alcohol consumption on serum lipid levels.Methods A total of 516 unrelated nondrinkers and 514 drinkers aged 15 -89 were randomly selected from our previous stratified randomized cluster samples.Genotyping of the ApoA5was performed by polymerase chain reaction and restriction fragment length polymorphism,and then confirmed by direct sequencing.Interactions of the ApoA5alcohol consumption were assessed by using a cross-product term between genotypes and the aforementioned factor.Results The levels of total cholesterol (TC),TG,high-density lipoprotein cholesterol(HDL-C), ApoA1 and ApoB were higher in drinkers than in nondrinkers (P【0.05-0.001).The genotypic and allelic frequencies of the three single nucleotide polymorphisms(SNPs) were not different between the two groups.The levels of TG in non-drinkers, and TC,TG,low-density lipoprotein cholesterol (LDL-C)and ApoB in drinkers were different among the three -1131T】C genotypes(P【0.05-0.001).The -1131C allele carriers had higher serum TC,TG,LDL-C and ApoB levels than the allele noncarriers.The levels of TG,HDL-C and ApoB in nondrinkers,and TG and HDL-C in drinkers were different between the two c.553G】T genotypes(P【0.05-0.01).The C.553T allele carriers had higher serum TG and ApoB levels,and lower HDL-C levels than the allele noncarriers.Serum lipid levels in nondrinkers were not different among the three c.457G】A genotypes(P【0.05 for all), but the levels of HDL-C,LDL-C,ApoA1 and ApoB in drinkers were different between the GG and GA/AA geno-types (P【0.05-0.001).The C.457A allele carriers had lower serum HDL-C,LDL-C,ApoAl and ApoB levels than the allele noncarriers.We also observed four haplotypes:G-G-T, G-G-C,G-A-T,and T-G-C with frequencies ranging from 0.06 to 0.87,representing 100%of all haplotypes in the both populations.The ApoA5 haplotypes were significantly(P【0.05) associated at the global level with TC,TG,HDL-C, LDL-C,Apo1,and ApoB,even after correction for multiple testing with permutation test.In particular,carriers of haplo-type G-G-C had significantly higher TC,TG,LDL-C,ApoB than noncarriers,whereas carriers of haplotype C-A-T had significantly lower TC,LDL-C,ApoAl and ApoB,and higher HDL-C than noncarriers.Serum TC levels in nondrinkers were correlated with -1131T】C genotype and allele(P【0.05 for each),whereas serum TC,TG and LDL-C levels in drinkers were associated with -1131 T】C and C.553G】T genotypes,or c.457G】A alleles(P【0.05-0.001).Serum lipid parameters were also correlated with several environmental factors in the both groups.Conclusions The differences in serum lipid profiles between the drinkers and nondrinkers might partly result from different interactions of ApoA5 gene polymor phisms and alcohol consumption.genotypes and -1131T】C, c.553G】T and c.457G】A to detect the interactions of the ApoA5展开更多
Background： Several studies have reported that apolipoprotein A5 （APOA5） is involved in the development of non-alcoholic fatty liver disease （NAFLD）. However, no research has been performed regardingthe associati...Background： Several studies have reported that apolipoprotein A5 （APOA5） is involved in the development of non-alcoholic fatty liver disease （NAFLD）. However, no research has been performed regardingthe association between APOA5 polymorphisms and the risk of NAFLD. This study aimed to explore theassociation between APOA5 gene polymorphisms and NAFLD in a Chinese Han population.展开更多
Abnormal levels of plasma lipid have been linked to atherosclerosis, strokes and heart conditions. Variations in high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol levels are considered as ri...Abnormal levels of plasma lipid have been linked to atherosclerosis, strokes and heart conditions. Variations in high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol levels are considered as risk factors for coronary artery disease (CAD). Furthermore, triglycerides are a leading cause of cardiovascular disease. Therefore, measurement of plasma lipid levels is an important mortality predictor. Several factors were associated with irregularity in plasma lipids such as genetic alterations. Recent researches have linked single nucleotides polymorphism (SNP) in ApoA5 gene with these deviations. In this study, we reported the effects of the genetic variant c.553G>T in ApoA5 on the levels of plasma lipids. To explore these effects, a case-control study including 280 male and female subjects (44 of them were assigned as CAD cases while the remaining subjects were categorized as control) was established. All patients in the study were recruited from the western region in KSA. The results have detected minor variations in LDL, HDL and cholesterol levels between CAD patients carrying T allele and CAD patients carrying the WT allele. However, there were no significant effects due to these variations. TG levels in the wild type carriers reached up to 291 mg/dl while T allele carriers, the cases, presented lower levels of TG (170 mg/dl and 71 mg/dl). Although, T allele showed no effects on plasma lipids with the exception of TG levels. We suggest by this study that T allele in this SNP might be considered as a valuable tool in the diagnosis of CAD.展开更多
文摘This study investigated the association of apolipoprotein A5 （apoA5） gene polymorphism at position -1131T〉C with cerebral infarction in patients with type 2 diabetes. A total of 256 type 2 diabetic patients without cerebral infarction （T2DM）, 220 type 2 diabetic patients with cerebral infarction （T2DMCI） and 340 healthy subjects were recruited from the same region （Hubei province, China）. The genotype of apoA5 -1131T〉C was analyzed by polymerase chain reaction, followed by restriction fragment length polymorphism （PCR-RFLP）. Total cholesterol, HDL cholesterol, LDL-cholesterol and triglycerides were quantitatively detected by using standard enzymatic tech- niques. The results showed that the prevalence of the apoA5 -1131C allele was significantly higher in T2DMCI group than that in control group （42.7% versus 31.2%, P〈0.01）. The carriers of rare C allele had higher TG levels as compared with carriers of common allele in the three groups （P〈0.01）. Logistic regression models, which were adjusted for age, gender, blood pressure, BMI, FBS, smoking, LDL-C and HDL-C, revealed that patients carrying the apoA5 -1131C allele and CC homozygotes were at high risk for T2DMCI. It was concluded that the apoA5 -1131C allele variant is an independent genetic risk factor for T2DMCI.
文摘Objectives Apolipoprotein(Apo) A5 gene poly-morphisms and alcohol consumption have been associated with increased serum triglyceride(TG) levels,but little is known about their interactions on serum lipid levels.The present study was undertaken polymorphismsand alcohol consumption on serum lipid levels.Methods A total of 516 unrelated nondrinkers and 514 drinkers aged 15 -89 were randomly selected from our previous stratified randomized cluster samples.Genotyping of the ApoA5was performed by polymerase chain reaction and restriction fragment length polymorphism,and then confirmed by direct sequencing.Interactions of the ApoA5alcohol consumption were assessed by using a cross-product term between genotypes and the aforementioned factor.Results The levels of total cholesterol (TC),TG,high-density lipoprotein cholesterol(HDL-C), ApoA1 and ApoB were higher in drinkers than in nondrinkers (P【0.05-0.001).The genotypic and allelic frequencies of the three single nucleotide polymorphisms(SNPs) were not different between the two groups.The levels of TG in non-drinkers, and TC,TG,low-density lipoprotein cholesterol (LDL-C)and ApoB in drinkers were different among the three -1131T】C genotypes(P【0.05-0.001).The -1131C allele carriers had higher serum TC,TG,LDL-C and ApoB levels than the allele noncarriers.The levels of TG,HDL-C and ApoB in nondrinkers,and TG and HDL-C in drinkers were different between the two c.553G】T genotypes(P【0.05-0.01).The C.553T allele carriers had higher serum TG and ApoB levels,and lower HDL-C levels than the allele noncarriers.Serum lipid levels in nondrinkers were not different among the three c.457G】A genotypes(P【0.05 for all), but the levels of HDL-C,LDL-C,ApoA1 and ApoB in drinkers were different between the GG and GA/AA geno-types (P【0.05-0.001).The C.457A allele carriers had lower serum HDL-C,LDL-C,ApoAl and ApoB levels than the allele noncarriers.We also observed four haplotypes:G-G-T, G-G-C,G-A-T,and T-G-C with frequencies ranging from 0.06 to 0.87,representing 100%of all haplotypes in the both populations.The ApoA5 haplotypes were significantly(P【0.05) associated at the global level with TC,TG,HDL-C, LDL-C,Apo1,and ApoB,even after correction for multiple testing with permutation test.In particular,carriers of haplo-type G-G-C had significantly higher TC,TG,LDL-C,ApoB than noncarriers,whereas carriers of haplotype C-A-T had significantly lower TC,LDL-C,ApoAl and ApoB,and higher HDL-C than noncarriers.Serum TC levels in nondrinkers were correlated with -1131T】C genotype and allele(P【0.05 for each),whereas serum TC,TG and LDL-C levels in drinkers were associated with -1131 T】C and C.553G】T genotypes,or c.457G】A alleles(P【0.05-0.001).Serum lipid parameters were also correlated with several environmental factors in the both groups.Conclusions The differences in serum lipid profiles between the drinkers and nondrinkers might partly result from different interactions of ApoA5 gene polymor phisms and alcohol consumption.genotypes and -1131T】C, c.553G】T and c.457G】A to detect the interactions of the ApoA5
基金supported by the grant of National Natural Science Foundation of China(31770837)
文摘Background： Several studies have reported that apolipoprotein A5 （APOA5） is involved in the development of non-alcoholic fatty liver disease （NAFLD）. However, no research has been performed regardingthe association between APOA5 polymorphisms and the risk of NAFLD. This study aimed to explore theassociation between APOA5 gene polymorphisms and NAFLD in a Chinese Han population.
文摘Abnormal levels of plasma lipid have been linked to atherosclerosis, strokes and heart conditions. Variations in high-density lipoprotein (HDL) and low-density lipoprotein (LDL) cholesterol levels are considered as risk factors for coronary artery disease (CAD). Furthermore, triglycerides are a leading cause of cardiovascular disease. Therefore, measurement of plasma lipid levels is an important mortality predictor. Several factors were associated with irregularity in plasma lipids such as genetic alterations. Recent researches have linked single nucleotides polymorphism (SNP) in ApoA5 gene with these deviations. In this study, we reported the effects of the genetic variant c.553G>T in ApoA5 on the levels of plasma lipids. To explore these effects, a case-control study including 280 male and female subjects (44 of them were assigned as CAD cases while the remaining subjects were categorized as control) was established. All patients in the study were recruited from the western region in KSA. The results have detected minor variations in LDL, HDL and cholesterol levels between CAD patients carrying T allele and CAD patients carrying the WT allele. However, there were no significant effects due to these variations. TG levels in the wild type carriers reached up to 291 mg/dl while T allele carriers, the cases, presented lower levels of TG (170 mg/dl and 71 mg/dl). Although, T allele showed no effects on plasma lipids with the exception of TG levels. We suggest by this study that T allele in this SNP might be considered as a valuable tool in the diagnosis of CAD.
