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INDONESIA
The Indonesian Biomedical Journal
Published by The Prodia Education and Research Institute
ISSN : -     EISSN : -     DOI : -
Core Subject : Health, Science,
Biochemistry, Genetics & Molecular Biology Public Health
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 2, No 1 (2010)" : 7 Documents clear
The Search for Biomarkers in Alzheimer's Disease Anna Meiliana; Andi Wijaya
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.v2i1.107

Abstract

BACKGROUND: As population demographic shift and the number of individuals with Alzheimer Disease (AD) continue to increase, the challenge is to develop targeted, effective treatments and our ability to recognize early symptoms. In view of this, the need for specific AD biomarker is crucial.CONTENT: In recent years it has become evident that CSF concentrations of some brain-specific proteins are related to underlying disease pathogenesis and may therefore aid clinical investigation. Among several, we have focused on three candidates that have been suggested to fulfil the requirements for biomarkers of AD: β-amyloid 42 (Aβ42), total Tau (T-tau) and tau phosphorylated at various epitopes (P-tau). An increasing number of studies suggest that supplementary use of these CSF markers, preferably in combination, adds to the accuracy of an AD diagnosis. More recently visinin – like protein (VLP-1), a marker for neuronal cell injury has been studied. CSF VLP-1 concentrations were 50% higher in AD patients than in the control population.SUMMARY: The number of studies aimed at the identification of new biomarkers for AD is expected to increase rapidly, not only because of the increasing insights into the pathological mechanisms underlying this disease, but also because new therapies have been developed or are under consideration now, which warrant an early and specific diagnosis for effective treatment of the patients.KEYWORDS: dementia, amyloid plaque, neurofibrillary tangels, amyloid β-peptide 42 (Aβ42), total tau (T-tau), phosphorylated tau (P-tau), visinin–like protein 1 (VLP-1) 
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
The Stem Cell Hypothesis of Aging Anna Meiliana; Andi Wijaya
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.v2i1.108

Abstract

BACKGROUND: There is probably no single way to age. Indeed, so far there is no single accepted explanation or mechanisms of aging (although more than 300 theories have been proposed). There is an overall decline in tissue regenerative potential with age, and the question arises as to whether this is due to the intrinsic aging of stem cells or rather to the impairment of stem cell function in the aged tissue environment.CONTENT: Recent data suggest that we age, in part, because our self-renewing stem cells grow old as a result of heritable intrinsic events, such as DNA damage, as well as extrinsic forces, such as changes in their supporting niches. Mechanisms that suppress the development of cancer, such as senescence and apoptosis, which rely on telomere shortening and the activities of p53 and p16INK4a may also induce an unwanted consequence: a decline in the replicative function of certain stem cells types with advancing age. This decrease regenerative capacity appears to pointing to the stem cell hypothesis of aging.SUMMARY: Recent evidence suggested that we grow old partly because of our stem cells grow old as a result of mechanisms that suppress the development of cancer over a lifetime. We believe that a further, more precise mechanistic understanding of this process will be required before this knowledge can be translated into human anti-aging therapies.KEYWORDS: stem cells, senescence, telomere, DNA damage, epigenetic, aging
Correlation Between Adiponectin, Tumor Necrosis Factor-alpha, Insulin Resistance and Atherogenic Dyslipidemia in Non Diabetic Central Obese Males Candra Ninghayu; Andi Wijaya; Suryani As&#039;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.v2i1.113

Abstract

BACKGROUND: Obesity raises the risk for atherosclerotic cardiovascular disease (ASCVD) through many risk factors including atherogenic dyslipidemia. Atherogenic dyslipidemia is characterized by high levels of triglyceride, increased small dense low density lipoprotein particles, and reduced levels of high density lipoprotein cholesterol. The exact mechanisms of central obesity and this atherogenic lipoprotein phenotype (ALP) is not clearly understood. Central obesity is characterized by a state of systemic low grade inflammation and insulin resistance. Adipose tissue has recently been shown to secrete a variety of bioactive peptides, called adipocytokines, that can potentially affect glucose and lipid metabolism. The aim of this study was to observe the role of adiponectin, tumor necrosis factor-α (TNF- α) and insulin resistance in atherogenic dyslipidemia in nondiabetic central obese males.METHODS: This was a cross-sectional study on 75 non-diabetic central obese male subjects (waist circumferences > 90 cm). Adiponectin and TNF-α testing were performed by ELISA; insulin resistance was assessed by the Homeostasis Model Assessment (HOMA) index, triglyceride was assessed by GPO-PAP, HDL cholesterol and small dense LDL were measured by homogenous method. Statistical analysis was done by SPSS for Windows v. 11.5 with a significance level at p < 0.05. The Pearson and Spearman’s Rho correlation coefficient was used to assess the correlation between various anthropometric and biochemical parameters.RESULTS: There were 75 patients aged 38.0±6.3 years, Adiponectin concentration was 3.55±1.38 μg/ml, HOMA index was 2.28±1.63, TNF-α was 12.42±11.25 pg/ml, triglyceride was 185.17±109.00, HDL-cholesterol was 44.15±9.23 mg/dL, small dense LDL 23.22±12.26 mg/dL. This study revealed that there were correlations between adiponectin and triglyceride (r=-0.236, p=0.042), adiponectin and HDL cholesterol (r=0.300, p=0.009), adiponectin and atherogenic dyslipidemia (r=-0.256, p=0.027), whereas there was no correlation between insulin resistance and TNF-α with the atherogenic dyslipidemia.CONCLUSION: Adiponectin might contribute to atherogenic dyslipidemia in central obese non-diabetic males. Advancing our understanding of the function and measurement of adiponectin serum concentration will be useful in clinical diagnosis of obesity related atherogenic dyslipidemia.KEYWORDS: obesity, waist circumference, adiponectin, insulin resistance, TNF-α, atherogenic dyslipidemia
The Differences of Food Compositions in Adolescent Metabolic Syndrome in Malang Sri Andarini; Djanggan Sargowo
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.v2i1.109

Abstract

BACKGROUND: Obesity, especially obesity in adolescent, is a worldwide health problem needing much of our attention because it can continue to be obesity in adulthood. About 50% obese adolescents grew up to be obese adults. It was a concern since it is one of risk factor associated with cardiovascular events including hypertension, dyslipidemia, insulin resistance and stroke. Visceral obesity is correlated with diabetogenic, atherogenic, prothrombotic, pro-inflammation, and abnormal metabolism. The objective of this study was to assess the prevalence of obese adolescents in Malang and to identitfy the differences in food compositions between metabolic syndrome and non-metabolic adolescents.METHODS: Prevalence of obesity was determined by assessing BMI in 20 Senior and Junior High Schools. Metabolic syndrome was diagnosed using IDF criteria; waist circumference of >80cm and >90cm for female and male, respectively, and increased triglyceride and decreased HDL concentration levels. The food composition was assessed using food recalls, and then regression linier test was done to define the correlation between food intake and the components of metabolic syndrome.RESULTS: The prevalence of adolescent obesity in Malang had reached 3.32%, with the prevalence of obesity in male subjects higher than in female subjects, i.e. 54.1% compared to 45.9%. The boys had higher mean for height and weight than the girls did, however, the BMI was higher in girls rather than boys. The difference of fat in food composition was significantly higher for the metabolic groups (p=0.031), but the carbohydrate did not significantly differ between the two groups (p=0.407).CONCLUSIONS: The prevalence of adolescent obesity in Malang had reached 3.32%, with the prevalence of 54.1% in male and 45.9% in female. From the statistics test, fat intake showed a significant difference between metabolic syndrome and non-metabolic syndrome groups, but other food compositions didn’t.KEYWORDS: obesity, metabolic syndrome, adolescent
Relation of Oxidative Stress and Impaired Fibrinolysis with HDL Biogenesis in Indonesian Men with Metabolic Syndrome Ida Paulina Sormin; Widjaja Lukito; Andi Wijaya; Suryani As&#039;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.v2i1.110

Abstract

BACKGROUND: Biogenesis of HDL involves factors that regulate the synthesis, intravascular remodeling, and catabolism of HDL. Disturbance of these factors can lead to low concentration of HDL-C. Metabolic syndrome (MetS) is characterized by low concentration of high-density lipoprotein cholesterol (HDL-C). In MetS occur several pathological conditions including oxidative stress and impaired fibrinolysis, which contribute to the risk of atherosclerosis process. The correlation between oxidative stress and impaired fibrinolysis with HDL biogenesis dysfunction and its correlation with low concentration of HDL-C has not been well understood and therefore needs to be further investigated.METHODS: This study was an observational study with crosssectional design, involving 163 adult men, aged 25-60 years with metabolic syndrome. Concentration of apoA-1, prebeta-1 HDL, CETP, F2-isoprostan, PAI-1, and HDL-C were measured. The apo A1/HDL ratio indicated HDL maturation, whereas the CETP/HDL-C and CETP/TG ratios indicated HDL catabolism.RESULTS: The study showed that there were a positive correlation between PAI-1 with apoA1/HDL-C ratios (r=0.226, p=0.005) and a negative correlation with the CETP/TG ratios (r=-0.215, p=0.007), whereas F2-isoprostan did not have correlation with HDL biogenesis factors.CONCLUSIONS: We concluded that there was correlation between impaired fibrinolysis with decreased HDL maturation and there was increased HDL catabolism leading to low HDL-C concentration in men with metabolic syndrome.KEYWORDS: F2-isoprostan, PAI-1, apoA-1, prebeta-1 HDL, CETP, metabolic syndrome
Correlation Between Visfatin, Insulin Resistance (Homeostasis Model Assesment of Insulin Resistance), Inflammation (High Sensitivity C-Reactive Protein) and HDL Cholesterol Concentration in Individuals with Visceral Obesity Rini Budiyati; Widjaja Lukito; Andi Wijaya
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.v2i1.111

Abstract

BACKGROUND: Visfatin is a novel adipokine secreted from visceral adipose tissue and has insulinomimetic properties. Visceral obesity is a risk factor for metabolic syndrome. Insulin resistance and inflammation are linked to visceral obesity and metabolic syndrome. Dysregulation of visfatin as an adipokine could play an important role in metabolic syndrome through insulin resistance and inflammation, or lower HDL cholesterol concentration. However, this need more evidence.METHOD: This was a crossectional study in 40 Indonesian obese men and 40 Indonesian obese women. Age: 30-60 years in men and 50-60 years for women, from February to March 2008 in Jakarta.RESULTS: No correlation between visfatin and hs-CRP as a marker of inflammation (r=0.190, p=0,101), or HOMA-IR as a marker of insulin resistance (r=-0.020, p=0.246). Suprisingly visfatin concentration is correlated with HDL Cholesterol (r=0.416, p=0.000).CONCLUSIONS: Visfatin plays an important role in metabolic syndrome through lipid metabolism. Positive correlation between visfatin and HDL cholesterol, was assumed that visfatin had a protective effect. Visfatin also known as as nicotinamide phosphoribosyltransferase (NAMPT) links Nicotinamide Adenine Dinucleotide (NAD) metabolism and raising of HDL Cholesterol. But the exact mechanisms need to be further studied.KEYWORDS: visceral obesity, metabolic syndrome, NAMPT, visfatin, HDL

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