The Indonesian Biomedical Journal

129-42

Authors: Indriyanti Rafi Sukmawati, Andi Wijaya

BACKGROUND: The mechanisms that are responsible for energy management in cells in an organism require a complex network of transcription of factors and cofactors. CONTENT: All living system must maintain a tight equilibrium between energy intake, storage and expenditure for optimal performance. This tight equilibrium must be both robust and flexible to allow for adaptation to every situation such as exercise or rest and famine or feast. Organisms rely on finely tuned and complex signaling network to confront with all possibilities. Metabolic imbalance can cause dysfunction and pertubation of these networks, which if uncorrected will induce disease such as obesity and diabetes mellitus. SUMMARY: During the last decades the understanding of the transcriptional regulation of diverse metabolic pathways has contributed to the elucidation of mechanisms of metabolic control and to a better knowledge of the pathogenesis of metabolic diseases.

151-6

Authors: Yati Sumiyati, Syakib Bakri, Mansyur Arif

BACKGROUND: Hypertension and central obesity are risk factors of cardiovascular disease. Epidemiology studies have shown that these two conditions are closely linked and often occur simultaneously. Inflammation is an underlying pathomechanism in hypertension and obesity. Vascular inflammation is related to coagulation pathway, whereby high level of inflammation increases the risk of atherothrombosis event. The aim of this study was to investigate the correlation between inflammation and fibrinolysis in hypertensive centrally obese subjects compared with hypertensive non obese sbjects. METHODS: This was a cross sectional study conducted in October 2009-June 2010 involving 53 eligible subjects according to the following criteria: men or women aged 30-65 years, had neither diabetes (FPG <126 mg/dL and or OGTT <200 mg/dL) nor CKD (eGFR ≥60 mL/minutes). All subjects were not in an acute inflammation state, had no unspecific infection (hs-CRP ≤10 mg/L), or taking anti-inflammation or anti-hypertensive medication. RESULTS: In this study we found that the levels of hs-CRP (2.636 mg/L vs 1.024 mg/L, p=0.007), PAI-1 (43.58 ng/mL vs. 28.43 ng/mL, p=0.089) and TAFI (12.73 ng/mL vs. 12.19 ng/mL, p=0.479) were respectively higher in hypertensive subjects with central obesity than in hypertensive subjects with no central obesity. In hypertensive centrally obese subjects there was significant positive correlation between hs-CRP and PAI-1 (r=0.491, p=0.001) and TAFI (r=0.312, p=0.0390, meanwhile in hypertensive non-obese subjects significant correlation was found only between hs-CRP and TAFI (r=0.929, p=0.003). CONCLUSIONS: Obesity in hypertensive subjects has higher inflammation state that is correlated with fibrinolysis disruption.

164-73

Authors: Meilinah Hidayat, Khie Khiong, Christina Melissa Siswanto

BACKGROUND: Hypercholesterolemia is a major risk factor for coronary heart disease. Pharmacological treatment of hypercholesterolemia are known to have side effects, hence the need for an alternative medicine, like herbal medicine, such as soybean as an example. Research objective is to compare the effects of ethanol extract, protein extract, and ethyl acetate fraction of soybean tempeh Detam-1 on the total serum cholesterol level of male mice. METHODS: This study was a laboratory experimental study with Completely Randomized Design (CRD) method. Twenty five balb-C strain male mice were allocated into five groups, namely: the negative-control (aquabidest), the positive-control (simvastatin), ethanol extract, protein extract and ethyl acetate fraction of the soybean tempeh Detam-1 and all were fed with high cholesterol containing food for 31 days. Starting on the 18th day all groups were treated for 14 days. The observed parameter was the total serum cholesterol level. The data of the study results were analyzed with ANOVA, followed by Tukey HSD test. RESULTS: There were significant differences between treatment groups and the negative-control (p=0.004). The reduction of the total cholesterol level of soy ethanol extract was 35.11±15%, the ethyl acetate fraction of soybean tempeh 26.48±17%, and soy protein extract was 15.33±33.1%, and no significant difference was noted in the positive-control group (simvastatin). CONCLUSION: The ethanol extract of soybean seed, protein extract of soybean seed, and ethyl acetate fraction of soybean tempeh Detam-1 have the same effect as do simvastin, and ethanol extract of soybean seed is the most effective substance for lowering total serum cholesterol in Balb-C male mice. KEYWORDS:

180-5

Authors: Mulyana Mulyana, Mansyur Arif, Dewi Muliaty

BACKGROUND: Recent studies have indicated that lead may affect activities on bone cells, but the mechanism is not yet clear. Therefore, we conducted a study to investigate correlation of chronic low-concentration lead exposure with bone turnover activity (ratio of C-telopeptide (CTx) and Procollagen Type 1 Amino-terminal Propeptide (P1NP) (CTx/P1NP)) and antioxidant (aminolevulinic acid (ALA) dehydratase (ALAD)) in a workers community. METHODS: An observational study with cross-sectional design was carried out. Fifty two subjects from a workers community in Jakarta, Indonesia, had provided informed consents and undergone medical history, physical and laboratory examinations. Hair lead concentration was measured by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) method. Meanwhile, P1NP was measured by Enzyme-linked immunosorbent assay (ELISA) and CTx was measured by Electro-chemiluminescence Immunoassay (ELICA) method. RESULTS: The mean hair lead concentration was 4.85 ppm. Based on Mayo Clinic reference, 28.85% of investigated subjects had hair lead concentration of ≥5 ppm. Hair lead concentration was not correlated with ALAD, CTx, P1NP concentrations or CTx/P1NP. ALAD concentration was significantly correlated with CTx/P1NP (p<0.05; r=0.35). SUMMARY: ALAD concentration was correlated with CTx/P1NP ratio, indicating that the role of antioxidant was possibly caused by accumulated chronic low-concentration lead exposure, which was correlated with bone turnover activity.