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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 3 (2010)" : 7 Documents clear
HDL: More Than Just Cholesterol Anna Meilina; Andi Wijaya
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.123

Abstract

BACKGROUND: Plasma concentration of high density lipoprotein cholesterol (HDL-C) are strongly, consistenly, and independently inversely associated with risk of atheroschlerotic cardiovascular disease (CVD). However, the last decade has seen several observations that do not follow this simple script.CONTENT: A proteomic analysis of HDL has given us an intriguing glimpse into novel components of HDL. HDL isolated from normal humans contains several classes of proteins, including not only apolipoproteins, but also complement regulatory proteins, endopeptidase inhibitors, hemopexin, and acute phase response proteins. These observations raise the possibility of unsuspected roles for HDL. HDL delivery of complement proteins would implicate HDL in innate immunity. Serine proteinase inhibitors would enable HDL to modulate proteolysis of the vessel wall. HDL from patients with coronary artery disease was enriched in apoE, apoC-IV, apoA-IV, Paraoxonase (PON), and complement factor C3. Highlighted additional mechanisms through which HDL protects the vessel wall are: HDL improves vascular function, decreases vascular inflammation, detoxifies radicals, and limits thrombosis.SUMMARY: Both inter- and intra-organ desynchrony may be involved in the pathogenesis of cardiometabolic disease attributable to effects in brain and multiple metabolic tissues including heart, liver, fat, muscle, pancreas, and gut. Efforts to dissect the molecular mediators that coordinate circadian, metabolic, and cardiovascular systems may ultimately lead to both improved therapeutics and preventive interventions.KEYWORDS: HDL, Apo–A1, RCT, inflammation, HDL dysfunction, HDL proteome, HDL & Apo–A1 mimetics
The Correlation between Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) and Insulin Resistance and the Components of Atherogenic Lipoprotein Phenotype in Males with Central Obesity Yusmiati Yusmiati; Burhanuddin Bahar; Andi Wijaya
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.128

Abstract

BACKGROUND: Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) promotes the degradation of LDL receptor in hepatocytes. in vitro studies have proven that insulin increases the expression of PCSK9. Insulin resistance, a common condition in central obesity is characterized by dyslipidemia called Atherogenic Lipoprotein Phenotype (ALP). This study aimed to investigate the correlation between insulin resistance (HOMA-IR) and PCSK9, and to analyze whether this condition is related to the development of ALP in central obesity.METHODS: This is an observational study with crosssectional design. The subjects consisted of 62 male adults with central obesity, aged 30-60 years old. ELISA was used to measure plasma PSCK9.RESULTS: The mean plasma PCSK9 concentration of the samples was 283.7 ng/mL. PCSK9 had positive linear correlation with HOMA-IR (r=0.225, p=0.045) and Apo B (r=0.245, p=0.055). After controlling of HOMA-IR, PCSK9 had positive linear correlation with triglycerides (r=0.352, p=0.045). In population with HOMA-IR >2, crosstabs analysis showed that PCSK9 had significant correlation with triglycerides and Apo B with an odd ratio of 6,125 (r=0.376, p=0.037). Triglyceride showed significant negative correlation with HDL cholesterol and ratio of LDL/Apo B, but neither HOMA-IR nor PCSK9 did.CONCLUSION: In males with central obesity, PCSK9 is one of the factors mediating the occurence of ALP in insulin resistance.KEYWORDS: PCSK9, insulin resistance, atherogenic lipoprotein phenotype
Survivin S81A Enhanced TRAIL's Activity in Inducing Apoptosis Ferry Sandra; Roya Khosravi-Far
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.124

Abstract

BACKGROUND: Survivin is rarely expressed in normal healthy adult tissues, however, it is upregulated in the majority of cancers. Survivin, which belongs to IAPs family, has been widely reported to protect cells from apoptosis by inhibiting caspases pathway. Survivin’s mitotic activity is modulated by many kinases, and its phosphor status can also influence its ability to inhibit apoptosis. There are several important survivin’s phosphorylation sites, such as S20 and T34. We have continued our investigation on other potential survivin’s phosphorylation sites that could be important site for regulating survivin’s cyto-protection.METHODS: By assuming that S81 could be a potential target to modify activity of survivin, wild-type survivin (Survivin), antisense survivin (Survivin-AS), mutated-survivin Thr34Ala (Survivin-T34A) and mutated-survivin Ser81Ala (Survivin-S81A) were constructed and inserted into pMSCV-IRES-GFP vector with cytomegalovirus (CMV) promoter. Each retroviral product was produced in BOSC23 cells. LY294002 pretreatment and TRAIL treatment along with infection of retroviral products were performed in murine fibrosarcoma L929 cells. For analysis, flow cytometric apoptosis assay and western blot were performed.RESULTS: In our present study, survivin for providing cytoprotection was regulated by PI3K. The results showed that LY294002, an inhibitor of PI3K, effectively suppressed survivin-modulated cytoprotection in a TRAIL-induced apoptotic model. In addition, mutated survivin S81A showed marked suppression on survivin’s cytoprotection. Along with that, TRAIL’s apoptotic activity was enhanced for inducing apoptosis.CONCLUSION: We suggested that survivin could inhibit apoptosis through PI3K and S81A could be another potential target in order to inhibit Survivin-modulated cytoprotection as well as to sensitize efficacy of TRAIL or other related apoptotic inducers.KEYWORDS: apoptosis, survivin, TRAIL, S81A, L929, LY294002
The Relationship of Proinflammatory and Antiinflammatory Adipokines in the Development of Metabolic Syndrome in Centrally Obese Men Anna Meiliana; Andi Wijaya; Suryani As'ad
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.125

Abstract

BACKGROUND: The increased prevalence of obesity worldwide is correlated with increasing prevalence of metabolic syndrome. Studies of adipose tissue have been improved from an inert energy storage to a metabolic active endocrine organ. Adipokines secreted by this tissue play a role in maintaining metabolic homeostasis. The large mass of visceral fat tissue causing the imbalance of these adipokines leading to metabolic abnormality known as the metabolic syndrome (MetS). This study was performed to understand relationship of proinflammatory adipokines (resistin, TNF-α, RBP4 and visfatin) and anti-inflammatory adipokines (adiponectin and vaspin) in the development of MetS.METHODS: This was a cross-sectional study using 122 central obesity men with waist circumference >90 cm, age from 30–60 years old. Proinflammatory adipokines (resistin, TNF-α, RBP4 and visfatin) and anti-inflammatory adipokines (adiponectin and vaspin) was measured by ELISA method.RESULTS: The crosstab study showed that subjects who have >2 high proinflammatory adipokines (17.3%) has higher MetS prevalence (OR = 1.16; p = 0.72) compare to subjects with <2 high proinflammatory adipokines (14.8%), subjects with low anti-inflammatory adipokines profile (18.9%) has higher prevalence of MetS (OR=1.38; p=0.22) compare to subjects with high anti-inflammatory adipokines (13.7%) and the prevalence of MetS became 1.49 times higher (p=0.24) when we combine the high RBP4 and low adiponectin profile (21.1%) compare to subjects with low RBP4 and high adiponectin (14%).CONCLUSIONS: This study showed that each adipokine was not strong enough to induce MetS, so the interaction between proinflammatory and antiinflammatory adipokines were needed to induce a systemic metabolic abnormality. Thus, the adipokines equilibrium was important to prevent MetS especially in centrally obese subjects.KEYWORDS: obesity, metabolic syndrome, adipokines, resistin, TNF-α, RBP4, visfatin, adiponectin, vaspin
Correlation between Circulating Levels of Pro-Inflammatory Cytokines TNF-alpha and Vascular Calcification Inhibitor Matrix Gla Protein in Obese Men Trilis Yulianti; Mansyur Arif; Andi Wijaya
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.126

Abstract

BACKGROUND: Adult obesity is rapidly increasing in the world including Indonesia. Tumor necrosis factor α (TNF-α) was chronically elevated in obese adipose tissue. TNF-α, a pleiotropic cytokine and also a regulator of bone formation, may might represent an important link between obesity and vascular calcification. Elegant genetic studies in mice and human have highlighted the important roles for Matrix Gla Protein (MGP) as an inhibitor of vascular calcification. The aim of this study was to examine the correlation between circulating levels of pro-inflammatory cytokines TNF-α and vascular calcification inhibitor MGP in obese men.METHODS: This was an observational cross-sectional study including 40 central obese men (waist circumference ≥90 cm) aged 31-60 years old. Serum MGP and serum TNF-α concentrations were quantified by ELISA principle. Fasting plasma glucose was assessed using hexokinase methods, triglyceride by GPO-PAP methods, and creatinine by Jaffe methods. All assays were performed according to the manufacture instruction. Statistical analysis was performed with SPSS for windows ver 16. Univariate analysis were performed to analyze mean, maximum, minimum value and SD. Pearson correlation statistic were performed to determine the correlation between variables. Significance value were define as alpha level = 0.05 based on two-tailed tests.RESULTS: The cross-sectional study (n=40) showed that the advancing age was correlated with plasma TNF-α concentration (r=0.348; p=0.028). The mean concentration of TNF-α and MGP were 8.323 and 8.368, respectively. We found a significant negative correlation between TNF-α with MGP (r=-0.425; p=0.006) and a significant correlation between TNF-α and triglyceride (r=0.375; p=0.017).CONCLUSIONS: Circulating level of TNF-α was inversely correlated with MGP concentration in obese men. This finding suggested that high level TNF-α leads to low MGP concentration obese men, hence, limits inhibitory capacity in vascular calcification.KEYWORDS: hypertension, obesity, vascular calcification, MGP, TNF-α
Novel Biomarkers in Cardiovascular Disease: A Review Anna Meiliana; Andi Wijaya
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.122

Abstract

BACKGROUND: The investigation of novel circulating serum and plasma biomarkers in patients with cardiovascular disease has been accelerating at a remarkable pace. New markers or tests are often presented too early to the medical profession, potentially leading to overuse and, thus, extra burden and costs to patients, the healthcare industry, and the economy. The challenge for clinicians and medical researchers is how to optimally apply existing and new markers/tests.CONTENT: Biomarkers are biological parameters that can be objectively measured and quantified as indicators of normal biologic processes, pathogenic processes, or responses to a therapeutic intervention. Typically thought of as disease process screening, diagnosing, or monitoring tools, biomarkers may also be used to determine disease susceptibility and eligibility for specific therapies. Cardiac biomarkers are protein components of cell structures that are released into circulation when myocardial injury occurs. They play a pivotal role in the diagnosis, risk stratification, and treatment of patients with chest pain and suspected acute coronary syndrome (ACS) as well as those with acute exacerbations of heart failure.SUMMARY: Active investigation has brought forward an increasingly large number of novel candidate markers but few have withstood the test of time and become integrated into contemporary clinical care because of their readily apparent diagnostic, prognostic, and/or therapeutic utility. With regard to the more novel biomarkers, careful thought is needed with regard to the appropriate target populations for discovery and validation, as well as the criteria used to sort out the contenders from the pretenders.KEYWORDS: biomarker, cardiovascular disease, atherosclerosis, acute myocardial infarction, heart failure, risk stratification, diagnosis, prognosis
Correlation of Ferritin and Transferrin Serum with hsCRP and F2-Isoprostane in Metabolic Syndrome Waode Nurfina; Irawan Yusuf; Mansyur Arif
The Indonesian Biomedical Journal Vol 2, No 3 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i3.127

Abstract

BACKGROUND: The low inflammatory state that accompanies the Metabolic Syndrome (MetS) associates with the overexpression of oxidative stress. Ferritin and Transferrin serum are often used to measure iron status and their concentrations are altered in several metabolic conditions. We hypothesized that concentration of Ferritin and Transferrin serum increase in Metabolic Syndrome (MetS) and correlate with the inflammation and oxidative stress.METHODS: We studied 65 male MetS patients, aged 43.26±7.16 years. Iron metabolism was measured by concentration of Ferritin and Transferrin serums, while inflammatory and oxidative stress by high sensitivity C-reactive Protein (hsCRP) and F2-Isoprostane.RESULTS: Concentration of Ferritin 315.70±188.63 ng/L and Transferrin 2.36±0.31 g/L increased along with increasing components of MetS. Concentration of Ferritin serum had a positive correlation with hsCRP (r=0.220) and F2-Isoprostane (r=0.023).CONCLUSION: Serum concentration of Ferritin increased in the MetS and correlates with hsCRP and F2-Isoprostane.KEYWORDS: metabolic syndrome, ferritin, transferrin, hsCRP, F2-isoprostane

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