Publications by authors named "Soo Jeong Koh"

Objective: Increased levels of inflammatory markers, such as interleukin-6 (IL-6), are associated with type 2 diabetes (T2DM). We investigated the association of IL-6 gene polymorphisms with T2DM and circulating levels of IL-6 in Koreans.

Subjects: A total of 1477 subjects with normal glucose tolerance and 476 T2DM patients were included.

View Article and Find Full Text PDF

Background: Concentrations of adiponectin, the protein product of the adipocyte C1q and collagen-domain-containing (ADIPOQ) gene are associated with type 2 diabetes and coronary artery disease. We investigate the association of single-nucleotide polymorphisms (SNPs) in the ADIPOQ gene with adiponectin concentrations, and to parameters of metabolic syndrome.

Methods: 867 unrelated, non-diabetic Korean women, 20 to 69 y, were genotyped for 8 SNPs in the ADIPOQ gene (-11391G>A, -11377C>G, H241P, Y111H, G90S, R221S, 45T>G, 276G>T).

View Article and Find Full Text PDF

Growing evidence suggests that polymorphisms at position -174 and -572 in interleukin-6 (IL-6) gene are associated with various manifestations of atherosclerosis. We investigated the genotype effects of IL-6 -174 and -572 polymorphisms on circulating levels of inflammatory markers in Korean men with coronary artery disease (CAD). CAD patients were subdivided into 2 groups; those patients treated without lipid-lowering drug (LLD) (n = 173) and those treated with LLD (n = 353).

View Article and Find Full Text PDF

Background: RANTES (regulated upon activation, normal T cells expressed and secreted) is known to be related to an inflammatory part of the atherosclerotic process. We investigated the association of serum concentrations of RANTES with the risk of coronary artery disease (CAD) in a case-control study.

Methods: One hundred fifty one CAD male patients aged 40 to 65 years and 151 age-matched healthy male controls were included and the main outcome measure was the odds ratio (OR) for CAD associated with increased levels of RANTES.

View Article and Find Full Text PDF

Background: Age-related adiponectin concentration has been discrepantly reported. We investigated the distribution of adiponectin by age in healthy women with normal glucose tolerance (NGT) and the relationship of adiponectin with visceral fat area (VFA).

Methods: Three-hundred fifty-nine women (age: 38+/-0.

View Article and Find Full Text PDF

We investigated whether smoking would interact with the interleukin-6 (IL-6) polymorphisms (-174G>C and -572C>G, -597G>A and -1363G>T) in determining circulating levels of inflammatory markers and its consequence to oxidative stress. The G/G genotype (n=26) of the -572C>G in nonsmokers (n=376) was associated with higher IL-6 (P=0.028), fibrinogen (P=0.

View Article and Find Full Text PDF

Background: Associations between variations in the lymphotoxin-alpha (LTA) gene and coronary artery disease (CAD) and type 2 diabetes have previously been reported. We investigated the influence of the LTA 252A>G and 804C>A polymorphisms on circulating parameters related to metabolic syndrome in Korean patients with CAD.

Methods: The study subjects comprised 446 Korean male patients with CAD (age 53.

View Article and Find Full Text PDF

In the present study we investigated the association of the RANTES (regulated upon activation, normal T-cell expressed and secreted) -28C>G and -403G>A promoter polymorphisms with the concentration of serum RANTES and CAD (coronary artery disease) in Korean men. We included 553 male CAD patients with (n=176) or without (n=377) Type 2 diabetes, aged 40-65 years with previous myocardial infarction ( approximately 50%) or angiographically confirmed CAD ( approximately 50%), and 416 aged-matched healthy male controls. The main outcome measures were the OR (odds ratio) of CAD risk and the serum RANTES concentration evaluated by sandwich ELISA.

View Article and Find Full Text PDF

Background: Serum C-reactive protein (CRP) levels, closely associated with cardiovascular disease (CVD) risk are influenced by CRP or interleukin-6 (IL-6) single nucleotide polymorphism (SNPs). However, it is still controversial. Therefore, we investigated the association of IL-6/CRP SNPs and serum CRP levels or other CVD risk factors in healthy adult Korean men.

View Article and Find Full Text PDF

We investigated the association between the Gly82Ser (G82S) polymorphism in the receptor for advanced glycation end products (RAGE) gene and circulating levels of soluble RAGE (sRAGE), advanced glycation end products (AGEs), and inflammatory markers in nondiabetic/nonobese Koreans. A total of 1096 men and 580 women aged 30 to 69 years and with body mass index of 18.5 to 29.

View Article and Find Full Text PDF

Background: The systemic inflammatory response is heightened in smokers. We examined whether the established cardiovascular risk factor, smoking status, might interact with the lymphotoxin-alpha (LTA) gene 252A>G polymorphism in determining concentrations of TNF-alpha and eventually IL-6, adiponectin and CRP downstream in the inflammatory cascade.

Methods: We measured anthropometric parameters, serum lipid profile, glucose, TNF-alpha, IL-6, CRP, adiponectin and urinary excretion of 8-epi PGF2alpha as well as a genotyping for 252A>G polymorphism of LTA in 480 healthy Korean men.

View Article and Find Full Text PDF

Objective: The purpose of this study was to compare low-fat (LF) meal and high-fat (HF) meal on the postprandial lipemic responses according to the -1131T>C polymorphism of the APOA5 gene in a population usually consuming a LF diet and having a high frequency of the variant allele at the APOA5 -1131T>C SNP.

Methods: This study was conducted using a cross-over design and 49 non-obese healthy men (42.8 +/- 0.

View Article and Find Full Text PDF

Context And Objective: It is unclear whether lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) exerts a pro- or antiatherogenic effect on cardiovascular disease (CVD). We investigated the association between Lp-PLA(2) variant (V279F and A379V) and CVD in Korean men.

Design: CVD patients (n = 532) and healthy controls (n = 670) were genotyped for the Lp-PLA(2) polymorphism (V279F and A379V).

View Article and Find Full Text PDF

Background: Circulating adiponectins have multiple protective roles as anti-diabetic, anti-atherosclerotic, and anti-inflammatory factors. We examined the relationship between plasma adiponectin concentration and other cardiovascular risk in nondiabetic coronary artery disease (CAD) men and the relationship can be maintained even after adjusted for major environmental factors that contribute to adiponectin concentrations.

Methods: Nondiabetic CAD men (n=613) were 31-70 y and had body mass index (BMI) of 18.

View Article and Find Full Text PDF

This study aimed to determine whether polymorphisms of the adiponectin (ACDC) gene independently contribute to insulin resistance (IR) and other cardiovascular disease (CVD) risk factors in nonobese, nondiabetic Korean men after adjusting for major environmental factors that influence IR. Among the 7 ACDC single-nucleotide polymorphisms (SNPs;C-11377G, T45G, G276T, H241P, Y111H, G90S, and R221S) prescreened in 48 subjects, we genotyped 333 subjects for SNP45 and SNP276, both of which showed an allele frequency of more than 2%. In Pearson correlation and multiple stepwise regression analyses, we found that waist circumference was the most important influencing factor (beta = .

View Article and Find Full Text PDF

Background: The adiponectin gene is known to modulate adiponectin concentrations and diabetes mellitus development.

Objective: We assessed whether adiponectin gene variants contribute to circulating adiponectin, insulin resistance (IR), or cardiovascular disease risk factors.

Design: Nondiabetic subjects [n = 902; x +/- SE age: 42.

View Article and Find Full Text PDF