- Serum CRP levels are associated with Estradiol levels and Insulin Resistance Syndrome in Korean Women.
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Kwon Beom Kim, Hee Young Kim, Kye Won Lee, Ji A Seo, Jeong Heon Oh, Sin Gon Kim, Nan Hee Kim, Kyung Mook Choi, Chol Shin, Sei Hyun Baik, Dong Seop Choi
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Korean Diabetes J. 2004;28(4):324-337. Published online August 1, 2004
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 Abstract
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- BACKGROUND
Several reports have recently suggested a positive correlation between components of metabolic syndrome (MS) or insulin resistance syndrome (IRS) and markers of the acute-phase response, including C-reactive protein (CRP). These results imply that MS and type 2 diabetes are the results of ongoing inflammatory process. Whether estrogen plays a beneficial role in preventing atherosclerosis has been a matter of controversy. The objective of this study was to evaluate the relationship between the serum levels of estradiol (E2) and the components of the MS and CRP in nondiabetic subjects of Ansan Health Study (AHS). METHODS: Eight-hundred and ninety-one healthy non-diabetic women aged over 18 years were enrolled. After measurements of the anthropometric and metabolic parameters, correlation and multiple linear regression analyses were performed with regard to the CRP level, as a dependent variable, and with regards to age, blood pressure (BP), body mass index (BMI), lipid profiles, fasting plasma glucose levels, HOMA-IR and fat content as independent variables. RESULTS: In the multiple linear regression analysis, the CRP concentration was found to be independently associated with the E2 level, total fat content, leukocyte counts, and total cholesterol level in all subjects and the serum E2 levels was correlated with age, HOMA-IR, total cholesterol and the CRP level. When subjects were grouped according to their number of MS or IRS components, the CRP levels were found to show statistically significant differences between the MS and IRS groups. CONCLUSION: As a marker of chronic inflammation, the serum CRP level was independently associated with the components of MS and IRS. Also, the serum CRP and E2 levels were positively correlated. These results suggest that estrogen and CRP might play some independent roles in chronic inflammation which is a part of MS and IRS.
- Plasma Leptin Concentration, Obesity, and Insulin Resistance in Healthy Korean Population.
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Dong Lim Kim, Nan Hee Kim, Dong Hyun Shin, Sin Gon Kim, Kyung Mook Choi, Jin Kwan Kim, Chol Shin, Seung Gwan Lee, Sei Hyun Baik, Dong Seop Choi
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Korean Diabetes J. 2002;26(2):100-111. Published online April 1, 2002
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Abstract
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- BACKGROUND
Leptin is a hormone that regulates food intake and body weight. It has been demonstrated that the plasma leptin levels correlates with body adiposity. Increased adiposity is accompanied by a low insulin sensitivity, which turns into insulin resistance. Recent studies suggest a complex interrelationship between leptin and insulin or insulin resistance. Therefore, the relationship between leptin and the variables of body adiposity, and insulin resistance in a non-diabetic population was examined. METHODS: 555 healthy non-diabetic people aged 20 to 80 were enrolled in this study. Leptin was measured by the mean radioimmunoassay. Multiple logistic regression analysis was performed with leptin as a dependent variable and with age, sex, BP, the lipid profile, the fasting plasma glucose levels, HOMA-IR and the trunk fat contents as independent variables. RESULTS: The plasma leptin concentrations were higher in women than in men. The leptin concentrations correlated with the body fat content, BMI and HOMA-IR but, less so with age, the fasting plasma glucose levels, the postprandial glucose levels, total cholesterol and LDL-cholesterol levels. After adjusting for the body mass index, the leptin levels significantly correlated with both the body fat content and the HOMA-IR. The results between males and females were similar when the data was analyzed after dividing by gender. Gender, the trunk fat content, HOMA-IR, and the total cholesterol and HDL cholesterol levels were independent variables which influences the log transformed leptin in multiple logistic regression analysis. When the subjects were grouped according to the number of insulin resistance syndrome including dyslipidemia, obesity, hypertension, and glucose intolerance, there was a linear increase in the leptin concentration with an increase in the number of the components of insulin resistance syndrome. CONCLUSION: The plasma leptin concentrations are related to adiposity, insulin resistance, and dyslipidemia in the non-diabetic Korean population. The relationship between leptin and insulin resistance independent of body fat suggests that insulin resistance might play some role in the development of hyperleptinemia and vice versa
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KDA
