Suryani As'ad
Postgraduate Program in Biomedical Science-Clinical Chemistry, Faculty of Medicine, Hassanuddin University Jl. Perintis Kemerdekaan Km.10, Makassar

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Fibroblast Growth Factor 21 (FGF21), Free Fatty Acid (FFA), High Sensitivity C-reactive Protein (hsCRP) and Homeostasis Model Assessment of Insulin Resistance (HOMA-IR) Among Indonesian Obese Non-Diabetic Males Yani Lina; Gatot Susilo Lawrence; Andi Wijaya; Suryani As'ad
The Indonesian Biomedical Journal Vol 1, No 3 (2009)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v1i3.103

Abstract

BACKGROUND: Fibroblast growth factor-21 (FGF21) is known as an important endocrine and paracrine regulator of metabolic homeostasis. Recent studies have shown that FGF21 attenuates lipolysis in human adipocytes, which is suggested as a FGF21's mechanism as anti-hyperlipidemia, anti-hyperglycemia and anti-obesity. The aim of this study was to measure the correlation between FGF21, FFA, hsCRP and HOMA-IR among Indonesian obese non diabetic males.METHOD: The study was observational with cross sectional design. The analysis was done in 137 subjects aged 30-60 years with non diabetic abdominal obesity. We measured the biochemical markers FGF21, FFA, hsCRP, fasting insulin and fasting glucose. We also measured weight, height, waist circumrefence (WC), creatinine, serum glutamin oxaloacetic transaminase (SGOT), and serum glutamic pyruvic transaminase (SGPT), systolic blood pressure (SBP) and diastolic blood pressure (DBP). Correlation between markers was measured using Pearson and Spearman's analysis.  RESULT: There were significant positive correlations between FGF21-HOMA-IR (r=0.314, p=0.000); FGF21-WC (r=0.173, p=0.043); FFA=hsCRP (r=0.270, p=0.001); and WC-HOMA-IR (r=0.279, p=0.001). There was significant negative correlation between FGF21-FFA (r=-0.038, p=0.657) and FGF21-hsCRP (r=-0.061, p=0.482). CONCLUSION: In this study we found that although there was no significant correlation, FGF21 might act as an anti-lipolytic and anti-inflammation agent among Indonesian obese non-diabetic males. Our findings agree with results of previous studies that the positive correlation between FGF21-WC and FGF21-HOMA-IR moght occur as a compensatory mechanism or resistance to FGF21 in obesity.KEYWORDS: Obesity, FGF21, FFA, hsCRP, HOMA-IR
Pro-inflammatory Profiles of Indonesian Adult Men with Central Obesity: A Preliminary Study on TNF-alpha, sTNFR-2 and IL-1beta Cynthia Retna Sartika; Andi Wijaya; Suryani As'ad
The Indonesian Biomedical Journal Vol 2, No 1 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i1.112

Abstract

BACKGROUND: Central obesity is closely associated with chronic inflammation, characterized by abnormal cytokine production such as IL-1β, tumor necrosis factor-α (TNF-α) and tumor necrosis factor receptor-2 (TNFR-2). Central obesity and chronic inflammation form a complex link with insulin resistance, leading to the development of type-2 diabetes mellitus (T2DM) and cardiovascular disease (CVD). Knowing the coinciding occurrence of chronic inflammation and central obesity, this study aimed to examine pro-inflammatory cytokine profiles of Indonesian adult men with central obesity.METHODS: This cross-sectional study recruited 80 apparently healthy Indonesian adult men, aged 23-53 years with waist circumference of 64-125 cm. This study was done in Jakarta. Measurements included clinical parameters like systolic blood pressure (SBP), diastolic blood pressure (DBP), fasting blood glucose (FBG), aspartate amino transferase (AST), alanine amino transferase (ALT), creatinine, high sensitivity C-reactive protein (hsCRP), anthropometric parameters, namely weight, height and waist circumference; and pro-inflammatory cytokines TNF-α, soluble TNFR-2 (sTNFR-2) and IL-1β.RESULTS: Basic characteristics of the subjects showed linear increase in values of SBP, DBP and the serum concentrations of AST, ALT, FBG, GFR, hsCRP (p<0.005, respectively) with the degree of obesity. sTNFR-2 and IL-1 β positively correlated with hsCRP (r=0.277, p=0.013 and r= 0.257, p=0.022, respectively), WC (r=0.380, p=0.001 and r=0.400, p<0.001, respectively) and body mass index (BMI) (r=0.364, p=0.001 and r=0.399, p<0.001, respectively). Moreover, TNF-α did not show correlations with hsCRP, WC and BMI.CONCLUSION: There was a linear increase in the serum concentrations of sTNFR-2 and IL-1β in subjects with central obesity. Both pro-inflammatory markers, correlated with hsCRP, WC and BMI, but TNF-α did not. sTNFR-2 and IL-1β were, therefore, considered as valid biomarkers to indicate chronic inflammation in Indonesian adult men with central obesity.KEYWORDS: central obesity, TNF-α, soluble TNFR-2 (sTNFR-2), IL-1β