- Original investigation
- Open Access
Interaction between endothelial nitric oxide synthase rs1799983, cholesteryl ester-transfer protein rs708272 and angiopoietin-like protein 8 rs2278426 gene variants highly elevates the risk of type 2 diabetes mellitus and cardiovascular disease
Cardiovascular Diabetology volume 17, Article number: 97 (2018)
The aim of the present study was to examine the association of angiopoietin-like proteins-8 (ANGPTL8) rs2278426, cholesteryl ester-transfer protein (CETP) rs708272 and endothelial nitric oxide synthase (NOS3) rs1799983 variants with type 2 diabetes mellitus (T2DM) and cardiovascular disease (CVD), and to investigate the effect of the potential interaction between these variants on disease risk.
Our study included 272 subjects classified into 68 patients with T2DM, 68 patients with T2DM complicated with CVD and 136 control subjects. ANGPTL8 c194C>T, CETP Taq1B and NOS3 G894T polymorphisms were genotyped using TaqMan® SNP Genotyping Assay.
The presence of NOS3, ANGPTL8, and homozygous CETP B1 variants were associated with increased risk of T2DM by 3.07-, 2.33- and 1.75-fold, respectively. NOS3 variant was associated with 3.08-fold increased risk of CVD (95% CI 1.70–5.60), while ANGPTL8 C allele was associated with 2.8-fold increased risk of CVD in T2DM patients (95% CI 1.13–6.97). Concomitant presence of both, CETP B1 and NOS3 T allele, associated with increased risk of T2DM, CVD and CVD in T2DM by 8.36-, 6.33- and 7.87-fold, respectively, while concomitant presence of ANGPTL8 variant with either CETP B1 or NOS3 T allele was not associated with increased risk of T2DM or CVD. However, concomitant presence of the three variants together elevated the risk of T2DM by 13.22-fold (p = 0.004), CVD risk by 8.86-fold (p = 0.03) and highly elevated the risk of CVD in T2DM patients by 13.8-fold (p = 0.008).
Concomitant presence of CETP B1, NOS3 T and ANGPTL8 T alleles augments the risk of CVD and T2DM. Further studies to clarify the mechanism of gene–gene interaction in the pathogenesis of CVD and T2DM are needed.
Cardiovascular disease (CVD) is the most common cause of morbidity and mortality among diabetic patients. Several factors such as dyslipidemia, obesity, smoking, exercise, alcohol intake, oxidative stress and genetic variants have been identified as risk factors for CVD in type 2 diabetes (T2DM) [1,2,3,4].
Plasma lipids and lipoproteins have been powerful risk factors for predicting CVD [4, 5]. Reduced circulating levels of high-density lipoprotein cholesterol (HDL-C) and elevated levels of very low-density lipoprotein cholesterol (VLDL-C), triglycerides (TGs) and total cholesterol (TC) are lipoprotein disorders linked to insulin resistance and atherogenesis .
Angiopoietin-like proteins (ANGPTLs) play major roles in lipid trafficking and metabolism. ANGPTL8 (also known as betatrophin) is a recently identified protein that is primarily expressed in liver and adipose tissue and circulates in human plasma. Expression of ANGPTL8 was found to be reduced by fasting and increased by refeeding in both mice and humans . ANGPTL8 regulates the activity of lipoprotein lipase (LPL), a key enzyme in lipoprotein lipolysis pathway, through direct interaction with ANGPTL3 (the interaction partner for ANGPTL8) modulated by insulin . ANGPTL8 has been associated with two functionally important processes in the development of T2DM, insulin resistance and lipid metabolism, and has been also reported to regulate the replication of β-cells in response to insulin resistance [9, 10].
Overexpression of ANGPTL8 leads to increased plasma levels of TAG (triacylglycerol) and lipoproteins via inhibition of LPL activity [11, 12]. Therefore, ANGPTL8 has been suggested as a potential therapeutic target for dyslipidemia and inhibition of ANGPTL8 has been highlighted as a novel therapeutic strategy for reducing plasma lipoprotein levels [8, 13].
Association of ANGPTL8 with diabetes and atherosclerotic diseases has been of great interest in recent studies. c194C>T (rs2278426, Arg59Trp) is a common studied variant in ANGPTL8 gene located on chromosome 19 resulting from substitution of C for T at c194 that affects levels of the activated form of ANGPTL3 with similar effect to complete ANGPTL3 deficiency and associated with low plasma levels of LDL-C, HDL-C via relieving the inhibition of LPL .
Another protein, cholesteryl ester-transfer protein (CETP), plays a crucial role in the metabolism of HDL-C. CETP participates in reverse cholesterol transport by transferring cholesteryl esters from HDL-C to apolipoprotein-B containing lipoproteins such as VLDL and LDL, thereby reducing the concentration of HDL-C and alter the susceptibility to atherosclerotic vascular diseases [14,15,16]. CETP rs708272 is a single nucleotide polymorphism (SNP) in CETP gene located on chromosome 16q21 resulting from G to A substitution at nucleotide 277 (G277A) which disrupts TaqI restriction site. The allele containing the TaqI endonuclease site is called B1, while the allele without the restriction site is called B2 and is associated with increased HDL-C levels and decreased CETP activity and levels [17, 18]. The association of CETP TaqIB variant with T2DM and CAD has been investigated in several studies and gave inconsistent results among different ethnic groups [14, 19,20,21,22].
Nitric oxide (NO) is an important regulator of vasodilator tone and blood pressure, NO is formed from the oxidation of its precursor l-arginine to l-citrulline by a family of NO synthases (NOSs). NOS system consists of three distinct isoforms, encoded by three distinct genes: neuronal (nNOS or NOS-1), inducible (iNOS or NOS-2), and endothelial (eNOS or NOS-3) . Glu298Asp (G894T, rs1799983) is one of the most clinically important polymorphisms of NOS-3 gene located on chromosome 7q35-36 resulting from G to T substitution at nucleotide 894 and is associated with reduced NO production and has been suggested to play a role in the development of hypertension, atherosclerosis and CVD .
The aim of the present study is to examine the association of ANGPTL8 rs2278426, CETP rs708272 and NOS3 rs1799983 variants with risk of T2DM and CVD, and to assess the modulatory effect of the potential interaction between these variants on disease risk.
Materials and methods
The study included 136 T2DM patients with and without CVD and 136 control subjects. All participants were recruited from the Outpatients Clinic of the National Research Center. Data of family and medical history was obtained by questionnaire. Clinical examination including measurement of systolic blood pressure (SBP) and diastolic blood pressure (DBP) was applied. Anthropometric measurements (weight and height) were collected and used for BMI calculation according to the standard formula BMI = weight (kg)/[height(m)]2. Hypertension was defined as blood pressure above 140/90 mmHg or taking antihypertensive drugs. Diagnosis of diabetes based on the criteria of the American Diabetes Association . Studied subjects were classified into 3 groups:
Control group included 136 healthy subjects with fasting plasma glucose (FPG) < 100 mg/dL. Exclusion criteria were diabetes mellitus, CVD, family history of diabetes or any form of CVD, hyperlipidemia, hypertension, systemic diseases, and those under medication.
T2DM patients without CVD included 68 subjects fulfilled diabetes mellitus diagnostic criteria or under diabetes medication (oral and/or insulin) with no history or signs of any form of CVD.
T2DM complicated with CVD included 68 subjects diagnosed to have diabetes and complicated with any CVD e.g. ischemic heart disease (IHD), macroangiopathy and/or cerebrovascular disease. Exclusion criteria for diabetic patients included family history of DM or any form of CVD, and systemic diseases.
Venous blood samples were collected from all participants after 12 h fast. Total cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), fasting plasma glucose (FPG) were assayed on Roche Diagnostics clinical chemistry auto analyzer c311 (Germany). Glycosylated hemoglobin (HbA1c) was measured by high-performance liquid chromatographic (HPLC) method using Agilent 1200 HPLC system (Agilent Technologies, Germany).
Genomic DNA was extracted from 2 mL of whole peripheral blood using QIAamp DNA extraction kit (Qiagen Hilden, Germany, Cat No. 51304) according to the manufacturer’s protocol. ANGPTL8 rs2278426, CETP rs708272 and NOS3 rs1799983 SNPs were genotyped using TaqMan® SNP Genotyping Assays. All primers and probes were designed by Applied Biosystems (Foster City, CA, USA) and genotyping analyses were performed on ABI 7500 Real Time PCR system (Applied Biosystems) according to the manufacturer’s protocol. For genotyping quality control, negative controls were included in all SNPs and 10% of samples were randomly selected and analyzed in duplicates and the concordance rate was 100%.
Data were analyzed using IBM SPSS version 20.0 software (Statistical Package for Social Science). Quantitative data were expressed as mean values ± standard deviation (SD) and qualitative data were expressed as frequency (%). Normally distributed data were compared using Student’s t test for 2 groups and ANOVA test for more than 2 groups. The significance of differences between proportions was tested by the Chi square test (χ2). Differences were considered significant with p value < 0.05. Genotype and allele frequencies between groups were compared by Chi square test. Univariate logistic regression analysis was used to test the association between studied polymorphisms and diseases and were presented as unadjusted odds ratios (OR) with confidence interval (95% CI). Multivariate logistic regression analysis was used to estimate independent risk for disease development after adjustment for potential covariates age, gender, hypertension, BMI, smoking status, duration of diabetes and lipid parameters and was presented as adjusted ORs.
General characteristics and biochemical variables of the studied participants
The study included 272 subjects classified into 68 patients with T2DM, 68 patients with T2DM + CVD, and 136 control subjects. Their age ranged from 43 to 71 years. The frequencies of CVDs in our patients were: 60% ischemic heart disease (IHD), 15% cerebrovascular disease, 15% macroangiopathy, 5% combined IHD and cerebrovascular disease, and 5% combined macroangiopathy and cerebrovascular disease.
Plasma glucose, HbA1C, BMI, SBP and DBP levels were significantly higher in patients compared to controls. The incidence of CVD among diabetic patients associated with longer durations of diabetes (p = 0.002), hypertension (p = 0.001) and smoking (p = 0.03) when compared to T2DM patients. Significantly higher levels of TC, TG and LDL-C and lower levels of HDL-C were demonstrated in patients compared to controls and in CVD patients compared to T2DM patients. Demographic, clinical and biochemical data of enrolled subjects are summarized in Table 1.
Association of ANGPTL8, CETP, NOS3 polymorphisms with the risk of T2DM
For ANGPTL8 c194C>T (rs2278426), the frequency of the variant allele (T) was significantly higher in T2DM patients than in control subjects (16% vs. 7.4%, p = 0.001) and was associated with 2.33-times increased risk of T2DM (95% CI 1.33–4.08) (Table 2). The frequency of T allele-genotypes (C/T and T/T) were significantly higher in T2DM patients than in controls under the additive model (26.5 and 3% vs. 12 and 1%, respectively, p = 0.003) and under the dominant model (29.5% vs. 13%, respectively, p = 0.002) (Table 3).
For CETP G277A (rs708272), the frequency of B2 variant (allele A) was higher in controls than in T2DM patients (41% vs. 33%, p = 0.05) (Table 2). The frequency of the wild G/G genotype (B1B1) was significantly higher in T2DM patients than in control subjects compared to G/A + A/A genotypes (B1B2 + B2B2 variants, respectively) under the dominant genetic model (p = 0.03) and was associated with 1.75-fold increased risk of T2DM (95% CI 1.07–2.86). The frequency difference was of no statistical significance under the additive model (G/G vs. GA vs. A/A) (p = 0.08) or the recessive model (G/G + G/A vs. A/A) (p = 0.29) (Table 3).
For NOS3 G894T (rs1799983), the frequency of the variant allele (T) was significantly higher in T2DM patients than in control subjects (21.4% vs. 8%, p < 0.0001) and associated with 3.07-times increased risk to develop T2DM (95% CI 1.82–5.19) (Table 2). The frequencies of T allele-genotypes (G/T and T/T) were significantly higher in T2DM patients than in controls under the additive genetic model (33.8 and 4.4% vs. 11.7 and 2.3%, respectively, p < 0.0001) and under the dominant model (38.2% vs. 14%, respectively, p < 0.0001) (Table 3).
Association of ANGPTL8, CETP, NOS3 polymorphisms with CVD risk
Association studies of ANGPTL8, CETP and NOS3 variants in CVD patients compared to control subjects showed that NOS3 T allele was significantly higher in CVD patients than in control subjects (22% vs. 8%, p = 0.0001) and was associated with 3.08-times increased risk of CVD (95% CI 1.70–5.60). Though the frequency ANGPTL8 and CETP variant alleles was higher in control subjects than in CVD patients but the difference was not statistically significant (Table 4). No other significant differences were found between CVD patients and control subjects regarding other gene variants under any genetic model (Table 5).
Association of ANGPTL8, CETP, NOS3 polymorphisms with CVD risk in T2DM
The frequency of ANGPTL8 C allele (wild allele) was significantly higher in T2DM + CVD patients than in T2DM patients (96.3% vs. 86.7% p = 0.03) and associated with 2.8-times increased risk of CVD in T2DM patients (95% CI 1.13–6.97), while the variant T allele was significantly higher in T2DM patients without CVD than in T2DM + CVD patients (13.3% vs. 3.7%, respectively). There was no other statistical significant difference regarding alleles frequency and genotypes distribution of CETP and NOS3 variants between T2DM patients and T2DM + CVD patients under any genetic model (Table 6).
Synergistic effect of ANGPTL8, CETP and NOS3 variants on the risk of T2DM and CVD
Studying the synergistic effect of CETP B1, NOS3 T and ANGPTL8 T alleles on the risk of CVD and T2DM showed that the concomitant presence of CETP B1 and NOS3 T allele, was associated with 8.36-fold increased risk of T2DM (p < 0.0001), 6.33-fold increased risk of CVD (p = 0.0002) and 7.87-fold increased risk of CVD in T2DM patients (p = 0.006). Concomitant presence of ANGPTL8 T allele with either CETP B1 or NOS3 T allele was not associated with increased risk of T2DM or CVD. Meanwhile, concomitant presence of CETP B1, NOS3 T and ANGPTL8 T alleles together elevated the risk of T2DM by 13.22-fold (p = 0.004) and CVD risk by 8.86-fold (p = 0.03) and highly elevated the risk of CVD in T2DM patients by 13.8-fold (p = 0.008) (Table 7).
Individuals with T2DM are at an increased risk of CVD and glycemic control is not enough to halt the progression of vascular complications [26,27,28]. Both genetic and environmental factors have important roles in the pathogenesis of T2DM and CVD  and the role of genetic factors appears to be considerably different between various populations .
In this work, we studied the association of CETP rs708272, NOS3 rs1799983 and ANGPTL8 rs2278426 variants with risk of CVD and T2DM in our population. Our results showed that NOS3 rs1799983, ANGPTL8 rs2278426 and CETP rs708272 variants associated with increased risk of T2DM by 3.07-, 2.33- and 1.75-fold, respectively, while only NOS3 variant associated with 3.08-fold increased risk of CVD. Meanwhile, ANGPTL8 wild allele (C) associated with 2.8-fold elevated risk of CVD in T2DM patients, while the variant allele (T) had a protective role against the development of CVD.
NOS3 gene has a role in maintaining normal endothelial function by coding for endothelial NOS enzyme which through synthesis of NO affects the relaxation of vascular smooth muscle, inhibits adhesion of platelets and leukocytes to the endothelium, reduces vascular smooth muscle cell migration and proliferation, and limits the oxidation of LDL-C [31, 32]. Reduced production of NO is one of the most important contributors to endothelial dysfunction and an important initiator of vascular complications .
In a recent study to identify the cellular mechanisms by which advanced glycation end-products (AGEs) exacerbate the endothelial dysfunction in human coronary artery endothelial cells (HCAECs) in diabetic patients with coronary artery atherosclerosis, AGEs were associated with increased oxidative stress and with significant reduction of eNOS mRNA and protein levels, eNOS mRNA stability, eNOS enzyme activity, and cellular NO levels .
G894T polymorphism in the NOS3 gene, which is associated with reduced NOS enzyme activity and consequently bioavailability of NO, has been associated with diabetes and diabetes related traits [35, 36], as well as relevant sub-clinical cardiac remodeling in CKD (chronic kidney disease) and has been reported as an important genetic biomarker in non-dialysis CKD patients who are at risk of worsening cardiac disease with progression of renal dysfunction .
Our findings are consistent with several reports that have indicated an association between NOS3 G894T and T2DM and CVD [35, 36, 38, 39]. However, some studies lack such association [40,41,42]. In addition to its endothelial functions, NOS3 has been indicated as an independent determinant of DNA methylation. In a previous study measuring global DNA methylation in individuals with different levels of glucose tolerance in parallel with genetic screening of polymorphisms in NOS3 gene, global DNA methylation was increased in both pre-diabetic and diabetic individuals after adjustment for other factors such as age, gender, smoking, and glucose tolerance status, and was associated with NOS3 G894T polymorphism . In a study involving obese children and type 1 diabetes with NOS3 polymorphism demonstrated an improved endothelial function after supplementation with folate  which is known to play an important role in DNA methylation and reduced folate level has been linked to aberrant DNA methylation profiles and epigenetic alterations [45, 46]. However, it is still unclear how NOS3 may influence global DNA methylation.
On the other hand, ANGPTL8 has been linked to insulin resistance and lipoprotein metabolism, two functionally important processes in the development of type 2 diabetes and CVD . In recent studies, association of ANGPTL8 with diabetes and atherosclerotic diseases has gained much interest. ANGPTL8 leads to increased plasma level of lipoproteins via inhibition of LPL activity, rs2278426 variant affects the level of the activated form of ANGPTL3, the interaction partner for ANGPTL8, therefore affects the function of ANGPTL8 and associated with low plasma levels of LDL-C and HDL and reduced risk of CVD in humans [8, 48].
Circulating level of ANGPTL8 was significantly higher in subject with MetS (metabolic syndrome) as well as subjects with increasing number of MetS components such as insulin resistance and central obesity. ANGPTL8 also showed significant association with hsCRP, BMI, TG, LDL, HOMA-IR and FPG and was associated with 2.4-fold increase of having MetS . While some studies reported increased levels of ANGPTL8 in obeity and T2DM [50,51,52] and being associated with C-peptide production in non-diabetic subjects , other studies showed that ANGPTL8 was reduced in T2DM [54, 55].
Ethnic variation has been associated with variable minor allele frequency (MAF) rates for this variant in respect to LDL-C and HDL-C plasma levels. In Dallas Heart Study (DHS), a multiethnic population-based study of Dallas County, Hispanics had the highest MAF of 26%, followed by African-Americans (18%) and the least was reported in European-Americans (5%). ANGPTL8 rs2278426 was associated with lower LDL-C and HDL-C in African-Americans and Hispanics but not in European-Americans, and was not associated with fasting glucose or homeostatic model assessment-insulin resistance in any ethnic group . However, in a genome-wide association study that predominantly included individuals of European ancestry, this variant was associated with both HDL-C and LDL-C . Meanwhile, in a study on non-diabetic Arabs, individuals who carried this variant had higher FPG, but did not show significant difference in their LDL and HDL levels compared to the wild type carriers . Similar findings were observed by Quagliarini et al.  in Hispanic participants of the DHS but not in African Americans or Europeans as Hispanic subjects who were homozygous for the variant allele had significantly higher FPG than subjects who were homozygous for the wild allele, however, this was only observed in a very small number of participants which was ignored in their discussion.
The role of ANGPTL8 in beta-cell proliferation has been questioned and the exact mechanism for the effect of this variant has not been elucidated yet. It’s possible to speculate that the change in the amino acid sequence might affect ANGPTL8 protein structure which might disrupt its functional domains [59, 60], however the functional impact of this polymorphism on the function of ANGPTL8 requires further investigation. Our data highlights the importance of ethnicity in understanding the role of ANGPTL8 and suggest a role for ANGPTL8 in glucose metabolism in our population.
Cholesteryl ester-transfer protein is another key regulating factor of lipid metabolism, therefore, polymorphisms of its gene may be candidates for modulating the lipid parameters and altering the susceptibility to atherosclerotic diseases . TaqIB is the most studied polymorphism of CETP gene with a frequency of 0.44 in Caucasian populations, this variant associates with decrease in CETP activity and level, increase in HDL-C level and modulated risk for diabetic complications. The presence of homozygous B1 allele associates with the lowest HDL-C levels while homozygous B2 allele associates with the highest levels [18, 61].
The role of TaqIB polymorphism in metabolic syndrome, T2DM and CAD, either through its influence on lipid metabolism or independent to its effect on lipid profile, has been reported in various populations [14, 19,20,21,22, 62]. In the present study, the presence of homozygous B1 allele increased the risk of T2DM in our population by 1.75-fold, but we could not report a significant association with the CVD. In a meta-analysis performed on 13,677 subjects, TaqIB variant exhibited a highly significant association with HDL-C levels and CAD, B2B2 individuals had significantly higher HDL-C levels than B1B1 individuals . In Tunisian population, B1 allele was associated with lower concentration of HDL-C, decreased CETP activity and increased prevalence of CAD in T2DM patients . In Spanish population the GG (B1B1) genotype carriers showed significantly lower HDL-C concentrations than the B2-allele (A) carriers, as well as higher glucose levels after the oral glucose tolerance test . Also, B1 allele of CETP has been associated with the risk of CAD and T2DM independent to HDL-C level  and was reported as an independent risk factor and a strong genetic predictor of macrovascular complications in T2DM . Inhibitors of CETP is under current investigation as potential drugs for reducing cardiovascular disease. Animal studies, as well as clinical and epidemiologic evidence, have suggested that inhibiting CETP is an effective strategy for raising HDL-C levels and reducing LDL-C levels .
In the present work, we examined the influence of concomitant presence of CETP B1, NOS3 T and ANGPTL8 T alleles on the risk of CVD and T2DM. We demonstrated elevated risk of T2DM, CVD and CVD in T2DM in the presence of both CETP B1 and NOS3 T alleles to the level of 8.36-, 6.33-, and 7.87-fold, respectively. Concomitant presence of the three variants together elevated the risk of T2DM and CVD by 13.22- and 8.86-fold, respectively and highly elevated the risk of CVD in T2DM patients by 13.8-fold. Our results indicate that the presence of variations in more than one gene play an important role in the susceptibility to T2DM and CVD. The limitations of our study that it was a cross sectional study and the small sample size. The exact mechanism of the influence of interaction between these variants on the risk of CVD and T2DM needs further investigations.
Concomitant presence of CETP B1, NOS3 T and ANGPTL8 T alleles augments the risk of CVD and T2DM in our population. The results of the present study emphasize the role of gene–gene interaction in the pathogenesis of complex disorders such as CVD and T2DM and the underlying mechanisms need to be clarified in future studies.
type 2 diabetes mellitus
coronary artery disease
systolic blood pressure
diastolic blood pressure
fasting plasma glucose
very low density lipoprotein
ischemic heart disease
high-performance liquid chromatographic
polymerase chain reaction
single nucleotide polymorphism
cholesteryl ester transfer protein
Dallas Heart Study
advanced glycation end-products
chronic kidney disease
Chaudhary R, Likidlilid A, Thavatchai Peerapatdit T, Damras Tresukosol D, Srisuma S, Ratanamaneechat S, Sriratanasathavorn C. Apolipoprotein E gene polymorphism: effects on plasma lipids and risk of type 2 diabetes and coronary artery disease. Cardiovasc Diabetol. 2012;11:36–47.
El-Lebedy D, Kafoury M, Abd-El Haleem D, Ibrahim A, Awadallah E, Ashmawy I. Paraoxonase-1 gene Q192R and L55 M polymorphisms and risk of cardiovascular disease in Egyptian patients with type 2 diabetes mellitus. J Diabetes Metab Disord. 2014;13:125–31.
El-Lebedy D, Raslan HM, Mohammed AM. Apolipoprotein E gene polymorphism and risk of type 2 diabetes and cardiovascular Disease. Cardiovasc Diabetol. 2016;15:12–22.
El-Lebedy D, Rasheed E, Kafoury M, Abd-El Haleem D, Awadallah E, Ashmawy I. Anti-apolipoprotein A-1 autoantibodies as risk biomarker for cardiovascular diseases in type 2 diabetes mellitus. J Diabetes Complications. 2016;30(4):580–5.
Smith SC Jr, Benjamin EJ, Bonow RO, Braun LT, Creager MA. AHA/ACCF secondary prevention and risk reduction therapy for patients with coronary and other atherosclerotic vascular disease: 2011 update: a guideline from the American Heart Association and American College of Cardiology Foundation endorsed by the World Heart Federation and the Preventive Cardiovascular Nurses Association. J Am Coll Cardiol. 2011;58:2432–46.
Di Angelantonio E, Sarwar N, Perry P, Kaptoge S, Ray KK, Thompson A, Wood AM, Lewington S, Sattar N, Packard CJ, Collins R, Thompson SG. Major lipids, apolipoproteins, and risk of vascular disease. JAMA. 2009;302:1993–2000.
Ren G, Kim JY, Smas CM. Identification of RIFL, a novel adipocyte-enriched insulin target gene with a role in lipid metabolism. Am J Physiol Endocrinol Metab. 2012;303:E334–51.
Quagliarini F, Wang Y, Kozlitina J, Grishin NV, Hyde R, Boerwinkle E, Valenzuela DM, Murphy AJ, Cohen JC, Hobbs HH. Atypical angiopoietin-like protein that regulates ANGPTL3. Proc Natl Acad Sci USA. 2012;109:19751–6.
Kugelberg E. Diabetes: betatrophin inducing beta-cell expansion to treat diabetes mellitus? Nat Rev Endocrinol. 2013;9:379.
Lickert H. Betatrophin fuels beta cell proliferation: first step toward regenerative therapy? Cell Metab. 2013;18(1):5–6.
Zhang R. Lipasin, a novel nutritionally-regulated liver-enriched factor that regulates serum triglyceride levels. Biochem Biophys Res Commun. 2012;424:786–92.
Zhang R. The ANGPTL3-4-8 model, a molecular mechanism for triglyceride trafficking. Open Biol. 2016;6(4):150272.
Fu Z, Abou-Samra AB, Zhang R. A Lipasin/ANGPTL8 monoclonal antibody lowers mouse serum triglycerides involving increased postprandial activity of the cardiac lipoprotein lipase. Sci Rep. 2015;5:18502.
Boekholdt SM, Sacks FM, Jukema JW, Shepherd J, Freeman DJ, McMahon AD, Cambien F, Nicaud V, de Grooth GJ, Talmud PJ, Humphries SE, Miller GJ, Eiriksdottir G, Gudnason V, Kauma H, Kakko S, Savolainen MJ, Arca M, Montali A, Liu S, Lanz HJ, Zwinderman AH, Kuivenhoven JA, Kastelein JJ. Cholesteryl ester transfer protein TaqIB variant, high-density lipoprotein cholesterol levels, cardiovascular risk, and efficacy of pravastatin treatment individual patient meta-analysis of 13677 subjects. Circulation. 2005;111:278–87.
De Grooth GJ, Klerkx AHEM, Stroes ESG, Stalenhoef AF, Kastelein JJ, Kuivenhoven JA. A review of CETP and its relation to atherosclerosis. J Lipid Res. 2004;45:1967–74.
Padmaja N, Kumar RM, Balachander J, Adithan C. Cholesteryl ester transfer protein TaqIB, − 629C/A and I405 V polymorphisms and risk of coronary heart disease in an Indian population. Clin Chim Acta. 2009;402:139–45.
Kashani Farid MA, Azizi F, Hedayati M, Daneshpour MS, Shamshiri AR, Siassi F. Association between CETP Taq1B and LIPC − 514C/T polymorphisms with the serum lipid levels in a group of Tehran’s population: a cross sectional study. Lipids Health Dis. 2010;9:96.
Dixit M, Bhattacharya S, Mittal B. Association of CETP TaqI and APOE polymorphisms with type II diabetes mellitus in North Indians: a case control study. BMC Endocr Disord. 2005;5:7.
Chaaba R, Hammami S, Attia N, Smaoui M, Masmoudi AS, Mahjoub S, Ben Hamda K, Hammami M. Association of plasma cholesteryl ester transfer protein activity and polymorphism with coronary artery disease extent in Tunisian type II diabetic patients. Clin Biochem. 2005;38:373–8.
Hsieh MC, Tien KJ, Chang SJ, Lo CS, Hsin SC, Hsiao JY, Hsu SC, Liang HT, Chen HC, Shin SJ, Lin SR. Cholesteryl ester transfer protein B1B1 genotype as a predictor of coronary artery disease in Taiwanese with type 2 diabetes mellitus. Metabolism. 2007;56:745–50.
Relvas WG, Izar MC, Helfenstein T, Fonseca MI, Colovati M, Oliveira A, Ihara SS, Han SW, Las Casas AA Jr, Fonseca FA. Relationship between gene polymorphisms and prevalence of myocardial infarction among diabetic and non-diabetic subjects. Atherosclerosis. 2005;178:101–5.
Kawasaki I, Tahara H, Emoto M, Shoji T, Nishizawa Y. Relationship between TaqIB cholesteryl ester transfer protein gene polymorphism and macrovascular complications in Japanese patients with type 2 diabetes. Diabetes. 2002;51:871–4.
Dellamea BS, Pinto LC, Leitão CB, Santos KG, Canani LH. Endothelial nitric oxide synthase gene polymorphisms and risk of diabetic nephropathy: a systematic review and meta-analysis. BMC Med Genet. 2014;15:9.
Veldman BA, Spiering W, Doevendans PA, Vervoort G, Kroon AA, de Leeuw PW, Smits P. The Glu298Asp polymorphism of the NOS 3 gene as a determinant of the baseline production of nitric oxide. J Hypertens. 2002;20(10):2023–7.
American Diabetes Association. Diagnosis and classification of diabetes mellitus. Diabetes Care. 2014;37(Suppl. 1):S81–90.
Azad N, Agrawal L, Emanuele NV, Klein R, Bahn GD, Reaven P. Association of blood glucose control and pancreatic reserve with diabetic retinopathy in the Veterans Affairs Diabetes Trial (VADT). Diabetologia. 2014;57(6):1124–31.
Patel A, MacMahon S, Chalmers J, Neal B, Billot L, Woodward M, Marre M, Cooper M, Glasziou P, Grobbee D, Hamet P, Harrap S, Heller S, Liu L, Mancia G, Mogensen CE, Pan C, Poulter N, Rodgers A, Williams B, Bompoint S, de Galan BE, Joshi R, Travert F. Intensive blood glucose control and vascular outcomes in patients with type 2 diabetes. N Engl J Med. 2008;358(24):2560–72.
Gerstein HC, Miller ME, Byington R, Goff DC, Bigger JT, Buse JB. Effects of intensive glucose lowering in type 2 diabetes. N Engl J Med. 2008;358:2545–59.
Felehgari V, Rahimi Z, Mozafari H, Vaisi-Raygani A. ACE gene polymorphism and serum ACE activity in Iranians type II diabetic patients with macroalbuminuria. Mol Cell Biochem. 2011;346:23–30.
Liu SM, Zhou X, Zheng F, Li X, Liu F, Zhang HM, Xie Y. Novel mutations found in mitochondrial diabetes in Chinese Han population. Diabetes Res Clin Pract. 2007;76:425–35.
Bellini MH, Figueira MN, Piccoli MF, Marumo JT, Cendoroglo MS, Neto MC, Dalboni MA, Batista MC, Goes MA, Schor N. Association of endothelial nitric oxide synthase gene intron 4 polymorphism with end-stage renal disease. Nephrology. 2007;12:289–93.
Möllsten A, Lajer M, Jorsal A, Tarnow L. The endothelial nitric oxide synthase gene and risk of diabetic nephropathy and development of cardiovascular disease in type 1 diabetes. Mol Genet Metab. 2009;97:80–4.
Omar SA, Webb AJ, Lundberg JO, Weitzberg E. Therapeutic effects of inorganic nitrate and nitrite in cardiovascular and metabolic diseases. J Intern Med. 2016;279(4):315–36.
Ren X, Ren L, Wei Q, Shao H, Chen L, Liu N. Advanced glycation end-products decreases expression of endothelial nitric oxide synthase through oxidative stress in human coronary artery endothelial cells. Cardiovasc Diabetol. 2017;16:52.
Zeng Z, Li L, Zhang Z, Li Y, Wei Z, Huang K, He L, Shi Y. A meta-analysis of three polymorphisms in the endothelial nitric oxide synthase gene (NOS3) and their effect on the risk of diabetic nephropathy. Hum Genet. 2010;127(4):373–81.
Zintzaras E, Papathanasiou A, Stefanidis I. Endothelial nitric oxide synthase gene polymorphisms and diabetic nephropathy: a huge review and meta-analysis. Genet Med. 2009;11(10):695–706.
Chand S, Chue CD, Edwards NC, Hodson J, Simmonds MJ, Hamilton A, Gough SC, Harper L, Steeds RP, Townend JN, Ferro CJ, Borrows R. Endothelial nitric oxide synthase single nucleotide polymorphism and left ventricular function in early chronic kidney disease. PLoS ONE. 2015;10(1):e0116160.
Kerkeni M, Addad F, Chauffert M, Myara A, Ben Farhat M, Miled A, Maaroufi K, Trivin F. Hyperhomocysteinemia, endothelial nitric oxide synthase polymorphism, and risk of coronary artery disease. Clin Chem. 2006;52:53–8.
Motawi T, Shaker O, Taha M, Sedrak H, Nabil M. Endothelial nitric oxide synthase and angiotensinogen gene polymorphism in coronary artery diseases in Egypt. Angiology. 2011;62:191–7.
Liyou N, Simons L, Friedlander Y, Simons J, McCallum J, O’Shaughnessy K, Davis D, Johnson A. Coronary artery disease is not associated with the E298D variant of the constitutive, endothelial nitric oxide synthase gene. Clin Genet. 1998;54:528–9.
Andrikopoulos GK, Grammatopoulos DK, Tzeis SE, Zervou SI, Richter DJ, Zairis MN, Gialafos EJ, Sakellariou DC, Foussas SG, Manolis AS, Stefanadis CI, Toutouzas PK, Hillhouse EW. GEMIG study investigators. Association of the 894G>Tpolymorphism in the endothelial nitric oxide synthase gene with risk of acute myocardial infarction. BMC Med Genet. 2008;9:43.
Ragia G, Nikkolaidis E, Tavridou A, Arvanitidis KI, Kanoni S, Dedoussis GV, Ougioukas G, Manolopoulos VG. Endothelial nitric oxide synthase gene polymorphisms − 786 T>C and 894 G>T in coronary artery bypass graft surgery patients. Hum Genomics. 2010;4:375–83.
Matsha TE, Pheiffer C, Mutize T, Erasmus RT, Kengne AP. Glucose tolerance, MTHFR C677T and NOS3 G894T polymorphisms and global DNA methylation in Mixed Ancestry African Individuals. J Diabetes Res. 2016;2016:8738072.
Wiltshire EJ, Peña AS, MacKenzie K, Bose-Sundernathan T, Gent R, Couper JJ. A NOS3 polymorphism determines endothelial response to folate in children with type 1 diabetes or obesity. J Pediatr. 2015;166(2):319–325. e1.
Nilsson E, Matte A, Perfilyev A, de Mello VD, Käkelä P, Pihlajamäki J, Ling C. Epigenetic alterations in human liver from subjects with type 2 diabetes in parallel with reduced folate levels. J Clin Endocrinol Metab. 2015;100(11):E1491–501.
Wang X, Guan Z, Chen Y, Dong Y, Niu Y, Wang J, Zhang T, Niu B. Genomic DNA hypomethylation is associated with neural tube defects induced by methotrexate inhibition of folate metabolism. PLoS ONE. 2015;10(3):e0121869.
Yin Y, Ding X, Peng L, Hou Y, Ling Y, Gu M, Wang Y, Peng Y, Sun H. Increased serum ANGPTL8 concentrations in patients with prediabetes and type 2 diabetes. J Diabetes Res. 2017;2017:8293207.
Hanson RL, Leti F, Tsinajinnie D, Kobes S, Puppala S, Curran JE, Almasy L, Lehman DM, Blangero J, Duggirala R, DiStefano JK. The Arg59Trp variant in ANGPTL8 (betatrophin) is associated with total and HDL-cholesterol in American Indians and Mexican Americans and differentially affects cleavage of ANGPTL3. Mol Genet Metab. 2016;118(2):128–37.
Abu-Farha M, Abubaker J, Al-Khairi I, Cherian P, Noronha F, Kavalakatt S, Khadir A, Behbehani K, Alarouj M, Bennakhi A, Elkum N. Circulating angiopoietin-like protein 8 (betatrophin) association with HsCRP and metabolic syndrome. Cardiovasc Diabetol. 2016;15:25.
Abu-Farha M, Abubaker J, Al-Khairi I, Cherian P, Noronha F, Hu FB, Behbehani K, Elkum N. Higher plasma betatrophin/ANGPTL8 level in Type 2 Diabetes subjects does not correlate with blood glucose or insulin resistance. Sci Rep. 2015;5:10949.
Espes D, Martinell M, Carlsson PO. Increased circulating betatrophin concentrations in patients with type 2 diabetes. Int J Endocrinol. 2014;2014:323407.
Hu H, Sun W, Yu S, Hong X, Qian W, Tang B, Wang D, Yang L, Wang J, Mao C, Zhou L, Yuan G. Increased circulating levels of betatrophin in newly diagnosed type 2 diabetic patients. Diabetes Care. 2014;37(10):2718–22.
Abu-Farha M, Abubaker J, Noronha F, Al-Khairi I, Cherian P, Alarouj M, Bennakhi A, Elkum N. Lack of associations between betatrophin/ANGPTL8 level and C-peptide in type 2 diabetic subjects. Cardiovasc Diabetol. 2015;14:112.
Gokulakrishnan K, Manokaran K, Pandey GK, Amutha A, Ranjani H, Anjana RM, Mohan V. Relationship of betatrophin with youth onset type 2 diabetes among Asian Indians. Diabetes Res Clin Pract. 2015;109(1):71–6.
Gómez-Ambrosi J, Pascual E, Catalán V, Rodríguez A, Ramírez B, Silva C, Gil MJ, Salvador J, Frühbeck G. Circulating betatrophin concentrations are decreased in human obesity and type 2 diabetes. J Clin Endocrinol Metab. 2014;99(10):E2004–9.
Victor RG, Haley RW, Willett DL, Peshock RM, Vaeth PC, Leonard D, Basit M, Cooper RS, Iannacchione VG, Visscher WA, Staab JM, Hobbs HH, Dallas Heart Study Investigators. The Dallas Heart Study: a population-based probability sample for the multidisciplinary study of ethnic differences in cardiovascular health. Am J Cardiol. 2004;93(12):1473–80.
Teslovich TM, Musunuru K, Smith AV, Edmondson AC, Stylianou IM, Koseki M, Pirruccello JP, Ripatti S, et al. Biological, clinical and population relevance of 95 loci for blood lipids. Nature. 2010;466(7307):707–13.
Abu-Farha M, Melhem M, Abubaker J, Behbehani K, Alsmadi O, Elkum N. ANGPTL8/Betatrophin R59W variant is associated with higher glucose level in non-diabetic Arabs living in Kuwaits. Lipids Health Dis. 2016;15:26.
Goring ME, Leibovitch M, Gea-Mallorqui E, Karls S, Richard F, Hanic-Joyce PJ, Joyce PB. The ability of an arginine to tryptophan substitution in Saccharomyces cerevisiae tRNA nucleotidyltransferase to alleviate a temperature-sensitive phenotype suggests a role for motif C in active site organization. Biochim Biophys Acta. 2013;1834:2097–106.
Rani DS, Dhandapany PS, Nallari P, Narasimhan C, Thangaraj K. A novel arginine to tryptophan (R144W) mutation in troponin T (cTnT) gene in an Indian multigenerational family with dilated cardiomyopathy (FDCM). PLoS ONE. 2014;9:e101451.
Heilbronn LK, Noakes M, Clifton PM. Association between HDL-cholesterol and the Taq1B polymorphism in the cholesterol ester transfer protein gene in obese women. Atherosclerosis. 2002;162:419–24.
Cahua-Pablo JÁ, Cruz M, Méndez-Palacios A, Antúnez-Ortiz DL, Vences-Velázquez A, del Carmen Alarcón-Romero L, Parra EJ, Tello-Flores VA, Leyva-Vázquez MA, Valladares-Salgado A, Pérez-Macedonio CP, Flores-Alfaro E. Polymorphisms in the LPL and CETP genes and haplotype in the ESR1gene are associated with metabolic syndrome in women from Southwestern Mexico. Int J Mol Sci. 2015;16(9):21539–54.
López-Ríos L, Nóvoa FJ, Chirino R, Varillas F, Boronat-Cortés M, Wägner AM. Interaction between cholesteryl ester transfer protein and hepatic lipase encoding genes and the risk of type 2 diabetes: results from the Telde study. PLoS ONE. 2011;6(11):e27208.
Rahimi Z, Nourozi-Rad R, Vaisi-Raygani A, Saidi MR, Rahimi Z, Ahmadi R, Yarani R, Hamzehee K, Parsian A. Association between cholesteryl ester transfer protein TaqIB variants and risk of coronary artery disease and diabetes mellitus in the population of Western Iran. Genet Test Mol Biomarkers. 2012;15:813–9.
Girona J, Ibarretxe D, Plana N, Guaita-Esteruelas S, Amigo N, Heras M, Masana L. Circulating PCSK9 levels and CETP plasma activity are independently associated in patients with metabolic diseases. Cardiovasc Diabetol. 2016;15(1):107.
DE made the study design, made the genetic analysis, laboratory investigations and wrote the manuscript. The author read and approved the final manuscript.
The authors declare that they have no competing interests.
Availability of data and materials
All data generated and analyzed during this study are included in this published article.
Consent for publication
Ethics approval and consent to participate
All participants gave written informed consent, and the study was approved by the ethics committee of the National Research Center.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
El-Lebedy, D. Interaction between endothelial nitric oxide synthase rs1799983, cholesteryl ester-transfer protein rs708272 and angiopoietin-like protein 8 rs2278426 gene variants highly elevates the risk of type 2 diabetes mellitus and cardiovascular disease. Cardiovasc Diabetol 17, 97 (2018). https://doi.org/10.1186/s12933-018-0742-8
- CETP Taq1B
- ANGPTL8 c194C>T
- NOS3 G894T