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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 601 Documents
 6   7   8   9   10 
MicroRNAs in Obesity, Metabolic Syndrome and Diabetes Mellitus Anna Meiliana; Andi Wijaya
The Indonesian Biomedical Journal Vol 3, No 1 (2011)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v3i1.130

Abstract

BACKGROUND: MicroRNAs (miRNAs) are small regulatory RNAs that play important roles in development of diseases. Several studies have provided evidences showing that miRNAs affect pathways that are fundamental for metabolic control in adipocyte and skeletal muscle differentiations. Some miRNAs have been implicated in lipid, amino acid, and glucose homeostasis. This leads to the possibility that miRNAs may contribute to common metabolic diseases and point to novel therapeutic opportunities based on targeting of miRNAs.CONTENT: miRNAs have been recognized as a class of epigenetic regulators of metabolism and energy homeostasis, primarily because the simultaneous regulation of a large number of target genes can be accomplished by a single miRNA. Emerging evidences suggest that miRNAs play a key role in the pathological development of obesity by affecting adipocyte differentiation. miRNAs have been implicated as novel protagonists in the pathogenesis of Diabetes Mellitus (DM), regulation of insulin production, secretion and action. They also appear to play a role in the development of diabetic complications such as nephropathy and cardiac hypertrophy.SUMMARY: Involvement of miRNAs in glucose and lipid metabolism has provided strong evidences to confirm their roles as key players in regulation of complex metabolic pathways. Additionally, it indicates potential outlook for novel therapeutic strategies in the management of obesity, metabolic syndrome and DM. Further research in this field is needed to ascertain the full potential of miRNAs as novel metabolic biomarkers and potent therapeutic agents against obesity and its metabolic disorders.KEYWORDS: obesity, metabolic syndrome, diabetes, miRNAs, adipogenesis, insulin, pancreatic cells
Resveratrol: A Sirtuin Activator and The Fountain of Youth Meiliana, Anna; Dewi, Nurrani Mustika; Wijaya, Andi
The Indonesian Biomedical Journal Vol 7, No 1 (2015)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v7i1.16

Abstract

BACKGROUND: An organism’s lifespan is inevitably accompanied by the aging process, which involves functional decline, a steady increase of a plethora of chronic diseases, and ultimately death. Thus, it has been an ongoing dream of mankind to improve healthspan and extend life.CONTENT: There are only a few proposed aging interventions: caloric restriction, exercise, and the use of low-molecular-weight compounds, including spermidine, metformin, resveratrol, and rapamycin. Resveratrol, a constituent of red wine, has long been suspected to have cardioprotective effects. Interest in this compound has been renewed in recent years, first from its identification as a chemopreventive agent for skin cancer, and subsequently from reports that it activates sirtuin deacetylases and extends the lifespans of lower organisms. Resveratrol have been shown to prevent and reduce the severity of age-related diseases such as atherosclerosis, stroke, myocardial infarct, diabetes, neurodegenerative diseases, osteoarthritis, tumors and metabolic syndrome, along with their ability to extend lifespan.SUMMARY: The purpose of aging research is the identification of interventions that may avoid or ameliorate the ravages of time. In other words, the quest is for healthy aging, where improved longevity is coupled to a corresponding healthspan extension. It is only by extending the healthy human lifespan that we will truly meet the premise of the Roman poet Cicero: “No one is so old as to think that he may not live a year.”KEYWORDS: aging, caloric restriction, mimetic, healthspan, sirtuin activator
25(OH)D was Correlated with Increased Risk of Insulin Resistance, but Not Mediated by Adiponectin and hsCRP Anggi Kartikawati; Yani Lina; Andi Wijaya
The Indonesian Biomedical Journal Vol 4, No 2 (2012)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v4i2.166

Abstract

BACKGROUND: Studies have shown that change of calcium and vitamin D homeostasis is associated with insulin resistance, decreased beta cell function, metabolic syndrome, glucose intolerance and diabetes. Evidence suggests that vitamin D insufficiency is inversely related to risk of metabolic disorders including type-2 Diabetes Mellitus (T2DM), although the underlying mechanisms are not yet understood. Hence, current study was conducted to investigate correlation between 25(OH)D and insulin resistance through adiponectin or High Sensitivity C-Reactive Protein (hsCRP) in centrally obese men.METHODS: This was a cross-sectional study involving 80 centrally obese men with waist circumference (WC) >90 cm and age 30-60 years. Total 25(OH)D concentration was measured by Enzyme-Linked Immunosorbent Assay (ELISA) method. Insulin resistance was calculated by HOMA model.RESULTS: This study showed there was no correlation of 25(OH)D-WC (r=0.006 and p=0.957), 25(OH)D-adiponectin (r=0.179 and p=0.111) abd 25(OH)D-hsCRP (r=-0.223 and p=0.334), but we observed  statistically significant negative correlation between 25(OH)D and insulin resistance index (HOMA-IR) (r=0.461 and p=0.041).CONCLUSIONS: We conclude that low 25(OH)D concentration was significantly associated with increased risk of insulin resistance. Since  the adiponectin or hsCRP was not correlated, the possible pathways need to be futher investigated.KEYWORDS: central obesity, 25(OH)D, adiponectin, hsCRP, insulin resistance (HOMA-IR)
Macrophage Polarization in Metabolism and Metabolic Disease Anna Meiliana; Andi Wijaya
The Indonesian Biomedical Journal Vol 5, No 2 (2013)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v5i2.56

Abstract

BACKGROUND: Obesity is now recognized as the main cause of the worldwide epidemic of type 2 diabetes. Obesity-associated chronic inflammation is a contributing key factor for type 2 diabetes and cardiovascular disease. Numbers of studies have clearly demonstrated that the immune system and metabolism are highly integrated.CONTENT: Macrophages are an essential component of innate immunity and play a central role in inflammation and host defense. Moreover, these cells have homeostatic functions beyond defense, including tissue remodeling in ontogenesis and orchestration of metabolic functions. Diversity and plasticity are hallmarks of cells of the monocyte-macrophage lineage. In response to interferons (IFNs), toll-like receptor (TLR), or interleukin (IL)-4/IL-13 signals, macrophages undergo M1 (classical) or M2 (alternative) activation. Progress has now been made in defining the signaling pathways, transcriptional networks, and epigenetic mechanisms underlying M1, M2 or M2-like polarized activation.SUMMARY: In response to various signals, macrophages may undergo classical M1 activation (stimulated by TLR ligands and IFN-γ) or alternative M2 activation (stimulated by IL-4/IL-13); these states mirror the T helper (Th)1–Th2 polarization of T cells. Pathology is frequently associated with dynamic changes in macrophage activation, with classically activated M1 cells implicate in initiating and sustaining inflammation, meanwhile M2 or M2-like activated cells associated with resolution or smoldering chronic inflammation. Identification of the mechanisms and molecules that are associated with macrophage plasticity and polarized activation provides a basis for macrophage centered diagnostic and therapeutic strategies.KEYWORDS: obesity, adipose tissue, inflammation, macrophage polarization
Association of Obesity and Breast Cancer Risk: The Role of Estrogen, Tumor Necrosis Factor-alpha, and Adiponectin as Risk factors (preliminary study) Ampi Retnowarnadi; Siti Boedina Kresno; Mansyur Arif
The Indonesian Biomedical Journal Vol 1, No 1 (2009)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v1i1.82

Abstract

BACKGROUND: Breast cancer is the most frequent cancer diagnosed among women. Many factors influence the carcinogenesis of breast cancer. The aim of this study to analyze the role of obesity (waist circumference and body mass index), serum Estradiol levels, TNF-α, and Adiponectin in the occurrence of breast cancer.METHODS: This was observational study with casecontrol design. Eleven breast cancer patients as cases and twelve Fibroadenoma Mammae (FAM) patients as controls were analyzed. The serum Estrogen, TNF-α and Adiponectin were examined in their association with breast cancer risk.RESULTS: Women with breast tumor and waist circumference > 80 cm have significantly higher breast cancer risk than women with breast tumor and waist circumference <80 cm (OR 8.75; 95% CI=1.24-61.88; p=0.029). Women with breast tumor and higher serum TNF-α levels (>2.30 pg/ml) have higher breast cancer risk (19.25 times) than women with breast tumor and have lower serum TNF-α levels (95% CI=1.77-209.55, p=0.015). Whereas, women with breast tumor and lower Adiponectin/TNF-α ratio (< 2.13) have higher breast cancer risk (22.5 times) than women with breast tumor and higher Adiponectin/TNF-α (95% CI=2.60-194.51; p=0.005).CONCLUSION: These results suggest that high concentration of serum TNF-α, waist circumference >80 cm and low Adiponectin/TNF-α ratio in women with breast tumor are significantly associated with an increased risk for breast cancer.KEYWORDS: Obesity, breast cancer, adiponectin/TNF-α ratio
Nephroprotective Effect of Pentoxyphylline Through Improvement in the Expression of TGF-beta1, Collagen Type-1, and Renal Interstitial Fibrosis in Swiss Strain Mice After Being Induced by Doxorubicin Bambang Purwanto; A Guntur Hermawan
The Indonesian Biomedical Journal Vol 2, No 2 (2010)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v2i2.119

Abstract

BACKGROUND: Use of doxorubicin (DXR) in the treatment of cancer has been increasing along with the increase in cancer morbidity. Nephrotoxic effects of DXR are still a problem. Pentoxyphylline (PTX) as an electron-donor material can be nephroprotective, so the combination of DXR and PTX might reduce the nephrotoxic effects of DXR. The aim of this study was to prove the nephroprotective effect of PTX and DXR nephrotoxicity through the improvement of TGF-β1, collage type-1, and renal interstitial fibrosis.METHODS: Twenty-four males Swiss strain mice, divided into three groups namely Control (C) injected with NaCl 0.9%; DXR induced nephrotoxicity (D); and effect of PTX on D (P/D) by intraperitoneally, respectively, each group consisted of 8 mice. Injections were given once a week for three consecutive weeks. At 8th week post-treatment, all eight mice of each group were sacrificed. Examination of TGF-β1 and collagen type-I expression was done by immunohistochemistry with monoclonal antibody. Renal interstitial fibrosis examination was done by a histopathologist, using Verheoff van Giesen staining. The statistic analysis was carried out using one-way ANOVA.RESULTS: TGF-β1 expression increased from C to D and subsequently decreased in P/D (4.50±3.89 vs. 177.88±68.78 vs. 36.88±9.51). Collagen type-I expression increased from C to D and subsequently decreased in P/D (12.00±14.32 vs. 186.25±125.62 vs. 36.00±29.14). Renal interstitial fibrosis expression increased from C to D and subsequently decreased in P/D (16.75±6.14 vs. 85.00±7.33 vs. 60.50±11.40). The expression of TGF-β1, collagen type-1, and renal interstitial fibrosis were higher significantly in D group as compared to C group (p<0,001). The expression of TGF-β1, collagen type-1, and renal interstitial fibrosis were lower significantly in P/D group as compared to D group (p<0.005).CONCLUSIONS: PTX was proved to be nephroprotector inducing by DXR.KEYWORDS: PTX, nephroprotector, TGF-β1, collagen type-I, renal interstitial fibrosis
Childhood Hyperuricemia as Risk Factor of Hypertension in Adulthood Oke Rina Ramayani
The Indonesian Biomedical Journal Vol 4, No 1 (2012)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v4i1.156

Abstract

BACKGROUND: Uric acid is the end product of purine metabolism. Hyperuricemia can occur because of decreased excretion, increased production and/or a combination of both mechanisms. Elevation of uric acid in the blood (>5.5 mg/dL) in children is associated with the occurrence of essential hypertension. The relevance of pediatric hyperuricemia into adult hypertension have been widely studied.CONTENT: The high percentage of children and adolescents with metabolic syndrome who had an elevated concentration of uric acid could be of great concern if it were concluded that uric acid was an independent risk factor for cardiovascular disease. The minimum age that has shown blood pressure is significantly associated with adult life is unknown. There are a number of possible explanations for the phenomenon of blood pressure tracking, including hyperuricemia. Several pathophysiological mechanisms increase uric acid with cardiovascular damage through proliferation of vascular smooth muscle cells, stimulate inflammatory path, and then prothrombotic effects triggered by the activation of platelets. Once vascular lesion has appeared, then arises the sodium-sensitive hypertension, although uric acid levels have returned to normal. Persistant mechanism of sodium sensitivity is caused by renal ischemia that leads to activation of the renin-angiotensin system, renal vasoconstriction and increased reabsorption of salt. This supports better understanding of the link between childhood hyperuricemia and adulthood hypertension.SUMMARY: Childhood hyperuricemia is an independent risk factor of hypertension and is ‘linked to’ adult blood pressure.KEYWORDS: uric acid, hyperuricemia, primary hypertension, children, adult
Adiposopathy and Obesity Paradox Indriyanti Rafi Sukmawati; Andi Wijaya
The Indonesian Biomedical Journal Vol 5, No 1 (2013)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v5i1.45

Abstract

BACKGROUND: Obesity has reached global epidemic proportions in both adults and children and is associated with numerous comorbidities, including hypertension, type 2 diabetes mellitus (T2DM), dyslipidemia and major cardiovascular diseases (CVD).CONTENT: Adiposity may cause adipocyte and adipose tissue anatomic and functional abnormalities, termed adiposopathy (adipose-opathy) or "sick fat," that result in endocrine and immune derangements. Adiposopathy may directly contribute to CVD through pericardiac and perivascular effects on the myocardium and blood vessels. Adiposopathy may also indirectly contribute to CVD through promoting or worsening major CVD risk factors such as T2DM, high blood pressure, and dyslipidemia. Despite this adverse association, numerous studies have documented an obesity paradox in which overweight and obese people with established CVD, including hypertension, heart failure, coronary heart disease, and peripheral arterial disease, have a better prognosis compared with nonoverweight/nonobese patients. These paradoxical findings are made less paradoxical when the pathogenic potential of excessive body fat is assessed based on adipose tissue dysfunction rather than simply on increased fat mass alone.SUMMARY: Adiposopathy is defined as pathological adipose tissue function that may be promoted and exacerbated by fat accumulation (adiposity) and sedentary lifestyle in genetically susceptible patients. Adiposopathy is a root cause of some of the most common metabolic diseases observed in clinical practice, including T2DM, hypertension and dyslipidemia.KEYWORDS: adiposopathy, adiposity, obesity paradox, adipocyte dysfunction, adipose hypertrophy, adipose hyperplasia
Detection of Mycobacterial Lipoarabinomannan with A Monoclonal Antibody Qualitative ELISA in Urine of Tuberculous Meningitis Patients Sylvia Rachmayati; Anita Liliana Susanti; Basti Andriyoko
The Indonesian Biomedical Journal Vol 8, No 1 (2016)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v8i1.9

Abstract

BACKGROUND: Tuberculous meningitis is the most severe manifestation of tuberculosis. The diagnostic approach of tuberculous meningitis is difficult. Combination of clinical, laboratory and radiological criteria were used in diagnostic approach of tuberculous meningitis. Urinary mycobacterial lipoarabinomannan (LAM) antigen detection is a promising diagnostic tool. Detection of mycobacterial antigen in concentrated urine sample is predicted to improve the positivity rate of the qualitative enzyme-linked immunosorbent assay (ELISA) diagnostic tool. The purpose of this study is to examine the detection ability of a monoclonal antibody qualitative ELISA in concentrated and unconcentrated urine of tuberculous meningitis patients.METHODS: This research is a descriptive, crosssectionally designed. The study was conducted in the Clinical Pathology Department laboratory of Dr. Hasan Sadikin Hospital, in July-October 2014. A total of 27 patients diagnosed as tuberculous meningitis patients were included and the subjects were classified into possible and probable criteria according to consensus criteria. The subjects were classified as definite if the cerebrospinal fluid culture was positive for Mycobacterial tuberculosis growth. The subjects were examined for the presence of LAM in unconcentrated and concentrated urine with a monoclonal antibody qualitative ELISA method.RESULTS: Unconcentrated urinary LAM examination positivity was 0% while in concentrated urine was 14.8%. The positivity of concentrated urinary LAM were higher among the definite criteria group.CONCLUSION: Concentrating urine sample increase the positivity rate of urinary LAM detection with ELISA method as high as 14.8%. The urinary antigen detection is higher among the definite tuberculous meningitis patients.KEYWORDS: LAM, concentrated urine, tuberculous meningitis, qualitative ELISA
In Search for Anti-Aging Strategy: Can We Rejuvenate Our Aging Stem Cells? Anna Meiliana; Nurrani Mustika Dewi; Andi Wijaya
The Indonesian Biomedical Journal Vol 7, No 2 (2015)
Publisher : The Prodia Education and Research Institute (PERI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18585/inabj.v7i2.72

Abstract

BACKGROUND: 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.CONTENT: A diminished capacity to maintain tissue homeostasis is a central physiological characteristic of aging. As stem cells regulate tissue homeostasis, depletion of stem cell reserves and/or diminished stem cell function have been postulated to contribute to aging. It has further been suggested that accumulated DNA damage could be a principal mechanism underlying age-dependent stem cell decline. It is interesting that many of the rejuvenating interventions act on the stem cell compartments, perhaps reflecting shared genetic and biochemical pathways controlling stem cell function and longevity. Strategy to slow down the aging processes is based on caloric restriction refers to a dietary regimen low in calories but without undernutrition. Sirtuin (SIRT)1 and 3, increases longevity by mimicking the beneficial effects of caloric restriction. SIRT3 regulates stress-responsive mitochondrial homeostasis, and more importantly, SIRT3 upregulation rejuvenates aged stem cells in tissues. Resveratrol (3,5,4’-trihydroxystilbene), a natural polyphenol found in grapes and wine, was the most powerful natural activator of SIRT1. In fact, resveratrol treatment has been demonstrated to rescue adult stem cell decline, slow down bodyweight loss, improve trabecular bone structure and mineral density, and significantly extend lifespan.SUMMARY: Tissue-specific stem cells persist throughout the entire lifespan to repair and maintain tissues, but their self-renewal and differentiation potential become dysregulated with aging. Given that adult stem cells are thought to be central to tissue maintenance and organismal survival, SIRT3 may promote organismal longevity by maintaining the integrity of tissue-speciic stem cells.KEYWORDS: rejuvenation, aging, stem cell, DNA damage, sirtuin activator

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