The Indonesian Biomedical Journal (Prodia Education and Research Institute)
Not a member yet
431 research outputs found
Sort by
Maternal Zinc Diet Impairs Learning and Memory in Offspring Rats through the CREB/BDNF Pathway
Get PDFBACKGROUND: Zinc released into the synaptic cleft able to modulate various signaling pathways, including brain derived neurotrophic factor (BDNF) and its receptor tropomyosin receptor kinase B (TrkB). Zinc binding to its receptor, G-protein coupled receptor 39 (GPR39), may trigger biochemical pathways leading to cAMP response element binding protein (CREB)-dependent gene transcription that subsequently promotes BDNF upregulation. Therefore, zinc dyshomeostasis should be considered as a condition that induces disruption of CREB/BDNF signaling. This study was conducted to examine the effect of maternal zinc diet on hippocampal expression levels of CREB and BDNF in offspring.METHODS: One-day pregnant rats were randomly divided into five groups: zinc-deficient (D), zinc-restricted (R), zinc-adequate (A), zinc-supplemented (S), and excess zinc-supplemented (ES). The groups had different zinc diets during pregnancy and lactation. The behavioral function of the offspring was tested with Y-maze at the 43th postnatal. Hippocampus was isolated, BDNF was assessed by quantitative real-time polymerase chain reaction (qRT-PCR), and CREB was examined using sandwich enzyme-linked immunosorbent assay (ELISA).RESULTS: Spatial working memory measurement demonstrated that D and ES group exhibited a significantly lower spontaneous alternation than other groups. The qRT-PCR and ELISA analysis revealed the hippocampal expression level of BDNF and CREB decreased in groups D and ES, but tended to increase in groups R and S, until the highest expression peak was found in group A.CONCLUSION: High and low intake of zinc induces lower expression of BDNF and CREB in hippocampus, which further impairs learning and memory. Our findings suggest the signaling pathway of CREB/BDNF is involved in zinc dyshomeostasis-induced cognitive impairments.KEYWORDS: hippocampus, BDNF, CREB, TrkB, GPR39, zinc, diet, LT
The Powdered Red Macroalgae (Eucheuma spinosum) Supplementation Potentially Enhanced Bone Structure in Osteoporotic Mice
Get PDFBACKGROUND: Red macroalgae, such as Eucheuma spinosum, have been found to have potential benefits for bone health due to their unique bioactive compounds, including proteins, polyphenols, polysaccharides, vitamins, and minerals. Therefore, this study was conducted to evaluate the benefits of powdered E. spinosum supplementation in osteoporosis-induced mice.METHODS: Thirty middle-aged mice were divided into 6 groups, namely: healthy control group (HC), negative control group (NC), positive control group (PC), and treatment groups supplemented with 1.25 mg/gBW (T1), 2.5 mg/gBW (T2), and 5 mg/gBW (T3) of E. spinosum powder for twenty days. Mice in NC, PC, T1, T2, and T3 groups were induced with 0.0029 mg/gBW of dexamethasone for 30 days to create osteoporosis mice models. Alkaline phosphatase (ALP) levels were measured by colorimetric methods before and after the intervention. Bone structures were evaluated using X-ray images and histological examination.RESULTS: After the intervention, PC, T1, T2, and T3 groups showed a significant decrease (p≤0.01) in serum ALP levels compared to the NC group, which experienced an increase in ALP levels. The X-ray images revealed that the PC, T1, T2, and T3 showed radiopaque bone density. For bone histology, PC, T2, and T3 showed an improvement with thickened and intact trabeculae, but T1 still had visible osteoporosis cavities.CONCLUSION: Supplementation of 2.5 and 5 mg/gBW of E. spinosum powder were able to improve bone density as well bone histology. Therefore, E. spinosum powder supplementation might potentially improve bone structure in osteoporosis.KEYWORDS: Eucheuma spinosum, red macroalgae, alkaline phosphatase, osteoporosi
Normal Value of Thrombocytes Indices in Indonesian Adults: Focus on Gender and Ages
Get PDFBACKGROUND: Monitoring platelet count and related indices is crucial for managing hematological disorders. No studies are reporting normal platelet indices in the adult Indonesian population. Therefore, this study was conducted to establish normal reference values for platelet count and indices in a healthy population in Indonesia and investigate their association with platelet count and each parameter.METHODS: This cross-sectional study included healthy adults from both sexes who underwent hematological testing in our laboratory. Two mL of venous blood was drawn and analyzed using an automated machine ADVIA 2120 to identify platelet count, mean platelet volume (MPV), platelet distribution width (PDW), plateletcrit (PCT), mean platelet component (MPC), platelet component distribution width (PCDW), mean platelet mass (MPM), platelet mass distribution width (PMDW), and large platelet count.RESULTS: This study included 1037 subjects with median of 27 (18–58) years old. Normal reference range values for platelet indices in adult Indonesians was established, which was significantly different between males and females (p<0.05) in following parameters: platelet count (191.77–400.37 vs. 203.00–433.00 ×109/L), MPV (7.30–9.91 vs. 7.20–10.00 fL), PDW (38.09–59.83 vs. 37.10–58.50%), PCT (0.17–0.33 vs. 0.17–0.35%), PMDW (0.68–1.06 vs. 0.67–1.04 pg) for males vs. females, respectively. However, other parameters such as MPC, PCDW, MPM, and large platelet, did not show any significant differences.CONCLUSION: The reference intervals of platelet indices in the adult Indonesian population were different from previously established reference values, indicating the importance of dedicated reference interval determination with gender consideration.KEYWORDS: thrombocyte indices, platelet count, hematology reference values, blood platelet analysis
Establishment of Reference Value of 20 Amino Acids for Toddlers by High Performance Liquid Chromatography Tandem Mass Spectrometry
Get PDFBACKGROUND: Amino acids are one of the essential metabolites, especially the 20 amino acids that are preserved as the building blocks of protein. Alterations in amino acid concentrations are related to disease such as inborn error of metabolism, cancer, as well as nutritional status. Hence, it is necessary to define reference values of 20 plasma-free amino acids for Indonesian toddlers and to establish a robust measurement technique using chromatography with tandem mass spectrometry (MS).METHODS: This study was a cross-sectional preliminary study to establish reference values. The sample was prepared by mixing plasma with 20% sulfosalicylic acid. Plasma-free amino acids were measured with high-performance liquid chromatography (HPLC) non-derivatization technique using column XTerra for chromatographic separation coupled with tandem MS. Amino acids reference values were taken from 101 healthy Indonesian toddlers aged 1-3 years old. Since amino acids data were not Gaussian distributed, the lower and upper of the reference value was established from the 5th percentile and the 95th percentile, respectively.RESULTS: Analysis for 20 amino acids was validated. The accuracy ranged from 90.53-105.39% and the precision ranged from 0.06-3.80%. The limit of detection range was 1-2 nmol/mL, and the limit of quantification range was 2-4 nmol/mL. The result was linear, with R2 higher than 0.998. There was no significant difference between boys and girls for all amino acids except for glycine.CONCLUSION: HPLC with tandem MS method can be used to evaluate amino acids in clinical practice. The reference values obtained are specific for aged 1-3 years old from urban areas in Indonesia. The study suggests that for each population, the reference values for amino acids should be established.KEYWORDS: amino acids, high-performance liquid chromatography, tandem mass spectrometry, reference values, Indonesia
Molecular Mechanisms of Methylglyoxal in Diabetes-related Macrovascular Complications
Get PDFDiabetes mellitus (DM) is a chronic endocrine and metabolic disease indicated by the presence of hyperglycemia. It has been known that hyperglycemia and oxidative stress are the main culprit of all DM complications, including macrovascular complications. As a byproduct of lipid, protein, and carbohydrate metabolism, methylglyoxal (MGO) is a highly reactive substance which plays a positive signaling role in helping cells regain redox balance under oxidative stress circumstances. DM-related problems lead to an excess of mitochondrial superoxide in the heart and big and small vascular endothelial cells. Elevated intracellular reactive oxygen species induce impaired angiogenesis in reaction to ischemia, trigger several proinflammatory pathways, and result in enduring epigenetic modifications that propel the continuous expression of proinflammatory genes even after glucose levels return to normal. Over time, the significance of the extremely quick advanced glycation end-products (AGE) production caused by the extremely reactive MGO has been clarified. It is now evident that MGO causes vascular tissue to react maladaptively. Glyoxalase 1 (GLO1) is the primary enzyme in an organism's enzymatic glyoxalase defense mechanism, which converts MGO to D-lactate in order to counteract the harmful effects of MGO. Understanding the role of the MGO–GLO1 pathway in the etiology of vascular disease in diabetes has advanced significantly. Therefore, it can be summarized that vascular damage are linked to diabetes. The AGE precursor MGO are important in determining the connection between diabetes and vascular damage. MGO and AGEs play a role in several phases of the development of diabetes complications. MGO and AGEs may be useful therapeutic targets for diabetes's macrovascular problems.KEYWORDS: hyperglycemia, AGE, methylglyoxal, glyoxalase, D-lactate, gluthatione, oxidative stres
Higher Trace Elements and Lower Fatty Acids Levels in Erythrocytes as Predictors of Preeclampsia
Get PDFBACKGROUND: Preeclampsia is one of the common causes of maternal death in Indonesia. Many studies only focus on the diagnosis and pharmacological treatment of preeclampsia. However, predictors of preeclampsia need to be observed to add more focus on the etiology and prevention of preeclampsia. The imbalances of trace elements and fatty acids play an important role in preeclampsia. Therefore, this study was conducted to evaluate the status of trace elements and fatty acids in preeclampsia patients as predictors of preeclampsia.METHODS: A cross-sectional study was conducted in 3 hospitals, and involving 40 pregnant women classified into severe preeclampsia and normotensive groups. Trace elements and fatty acids were measured in serum and erythrocytes using Inductively Coupled Plasma and Gas Chromatography-Mass Spectrometry. Serum and erythrocytes fatty acid levels' cut-off value, sensitivity, and specificity were analyzed using Receiver Operating Characteristic (ROC) curve and Area Under the Curve (AUC) value.RESULTS: Serum selenium, manganese, and iron levels were significantly different in the preeclampsia group than in the controls (p<0.05). Of all the heavy metals, higher concentrations of cadmium, arsenic, lead, and mercury were found in preeclampsia groups compared to control. Linoleic acid showed the highest predictive value to increase severe preeclampsia with AUC of 0.8. The ratio of high omega-6/omega-3 increases the risk of preeclampsia.CONCLUSION: Selenium, manganese, iron, cadmium, arsenic, lead, and mercury levels are higher in the serum of preeclampsia patients. Almost all erythrocyte fatty acids were significantly higher in the control group compared to preeclampsia. Measurement of trace elements and fatty acids is needed as a predictor of preeclampsia. Erythrocyte fatty acids measurement is considered better than serum.KEYWORDS: trace elements, fatty acids, preeclampsi
Increased Levels of TNF-α, IL-6, and IL-10 are Associated with The Degree of Liver Fibrosis in Chronic Hepatitis B Patients with NUC Therapy
Get PDFBACKGROUND: Liver fibrosis in chronic hepatitis B (CHB) involves the host immune responses mainly T-lymphocyte regulatory cells and cytokines production. Tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-10 have been reported to play a crucial role in the development of liver fibrosis. However, their association with liver fibrosis in treated CHB patients remains unclear. Therefore, this study was conducted to investigate the association between TNF-α, IL-6, and IL-10 with the degree of liver fibrosis in treated CHB patients.METHODS: This was a cross-sectional prospective study including 101 treated chronic hepatitis B subjects. TNF-α, IL-6, and IL-10 serum levels were measured with quantitative sandwich enzyme-linked immunosorbent assay (ELISA) kit. Transient elastography result was classified according to METAVIR score. Data was analyzed by the Spearman correlation test with a p<0.05 was considered statistically significant.RESULTS: From 101 subjects, there were significant differences were seen in TNF-α, IL-6, and IL-10 between patients with mild, significant and advance fibrosis. TNF-α (r=0.292; p<0.05), IL-6 (r=0.221; p<0.05), and IL-10 (r=0.208; p<0.05) were significantly correlated with the degree of fibrosis. After multivariate analysis, TNF-α was the only one cytokine parameter which significantly correlated with the degree of fibrosis.CONCLUSION: Levels of TNF-α, IL-6 and IL-10 are associated with the degree of liver fibrosis. These parameters may potentially be used to evaluate the development of liver fibrosis in treated CHB patients.KEYWORDS: chronic hepatitis B, liver fibrosis, cytokines, transient elastograph
Beetroot (Beta vulgaris L.) Extract Gives Superior Effect than Beetroot Juice on Increasing HDL and Decreasing LDL and IL-6 in Dyslipidemic Rats Model
Get PDFBACKGROUND: Dyslipidemia derives from disturbances in lipid metabolism as an interaction between genetic and environmental factors, characterized by increased levels of cholesterol, triglycerides, low-density lipoprotein (LDL) and decreased levels of high-density lipoprotein (HDL). Continuous dyslipidemia will increase the risk of atherosclerosis. In dyslipidemia, macrophages release inflammatory cytokines such as interleukin (IL)-1, IL-6, IL-12, IL-15, IL-18, and then induce T-cell infiltration formed atherosclerotic plaques. Beet (Beta vulgaris L.) which contains active compounds and antioxidant, such as flavonoids and betacyanin, has the ability to reduce dyslipidemia. This study evaluated effect of beetroot juice and beetroot extract on dyslipidemic rat models by evaluating the level of HDL, LDL and IL-6.METHODS: Fourty-two male Sprague Dawley rats were divided into seven groups. Rats were fed either with standard food or high fat diet (HFD) for 28 days, then different interventions using either single combination of simvastatin, beetroot juice, or beetroot extract were given alongside the standard food or HFD diet for another 28 days. LDL and HDL were measured pre- and post-intervention, while IL-6 was measured only post-treatment.RESULTS: Daily administration of a single beetroot juice or beetroot extract or in combination with simvastatin reduced LDL significantly compared to pre-intervention. The interventions also increased HDL significantly and lower IL-6 concentrations compared to group that received no intervention.CONCLUSION: Administration of beetroot juice and beetroot extract can lower LDL, increase HDL, and decrease IL-6 either alone or in combination treatment with simvastatin, it is indicated beetroot have a potential benefit for prevention and therapeutic in dyslipidemia.KEYWORDS: beetroot juice, beetroot extract, LDL, HDL, IL-
The Combination of Gardenia jasminoides, Boswellia serrata, Commiphora myrrha, Foeniculum vulgarae, and Daucus carota Essential Oil Blend Improved the Inflammatory and Clinical Status in Respiratory Tract Infection of COVID-19 Patients: A Multicentre, Randomized, Open-label, Controlled Trial
Get PDFBACKGROUND: Essential oils (EO) are complex volatile, naturally synthesized compounds from aromatic plants. It considers as healthy, effective, and safe since they were coming from nature. Gardenia jasminoides, Boswellia serrata, Commiphora myrrha, Foeniculum vulgarae, and Daucus carota are known to have antimicrobials, antioxidants, antiinflammation properties against respiratory tract infection. However, despite its natural content, a safety profile needs to be observed. Therefore, in this study, EO blend (EOB) made from the combination of these 5 plants was assessed for its efficacy and safety for respiratory tract infection in human.METHODS: A multicentre, randomized, open-label, phase II controlled trial involving 80 hospitalized adults with COVID-19 was conducted. One group of subjects only received standard of care (SoC), while the other group receive SoC and EOB orally for 10 days.RESULTS: There were significant decrease in interleukin (IL)-6 level (p=0.016) and interferon (IFN)-γ level (p=0.012), as well as better respiratory rate (p=0.024) for the group receiving SoC and EOB compared to the group receiving SoC only. However, there was no significant differences in aspartate aminotransferase (AST), alanine aminotransferase (ALT), creatinine, and the corrected QT interval (QTc) prolongation value in both groups. All subjects with adverse effects were improved and recovered, and there were no serious adverse events found.CONCLUSION: The combination of G. jasminoides, B. serrata, C. myrrha, F. vulgarae, and D. carota EOB could improve the inflammatory and clinical status and safe to be used as adjuvant therapy for treating COVID-19 in adults.KEYWORDS: essential oils, COVID-19, inflammation, safet
Intrauterine Transmission of Hepatitis B Cannot Be Ruled Out by A Single Negative Hepatitis B e Antigen (HBeAg) Result among Hepatitis B Surface Antigen (HBsAg) - Positive Pregnant Women
Get PDFBACKGROUND: The risk factors for intrauterine transmission of hepatitis B virus (HBV) in hepatitis B surface antigen (HBsAg)-positive pregnant women are poorly understood. Numerous factors are considered to be involved, including placental barrier, obstetric environment, high viral load, and positivity of hepatitis B e antigen (HBeAg). This study was conducted to investigate the role of placenta barrier, clinical, and viral factors in intrauterine transmission of HBV.METHODS: A cross-sectional study was conducted involving 1,353 pregnant women who underwent HBsAg screening. Eighty-four (6.2%) women were detected as HBsAg positive and were examined for HBsAg level, anti-HBs, anti-HBc, HBeAg/hepatitis B e antibody (anti-HBe) status, and HBV DNA presence in cord blood. Quantitative HBV DNA was analyzed using real-time polymerase chain reaction (PCR).RESULTS: Eighty-four of 1,353 subjects were HBsAg-positive. HBV DNA was positive in 28/84 (33.7%) maternal sera, 19/79 (24.05%) placental specimens, and 9/83 (10.84%) in cord blood. There were significant associations between HBV DNA in maternal serum (p=0.000) and placental tissue (p=0.000) with HBV DNA in the cord blood. No clinical factors were associated with HBV DNA transmission in cord blood. Sixty percent of viral load >5.3 log10 copies/mL were found in the cord blood, of which 43.8% HBeAg positive and 3.1% HBeAg negative.CONCLUSION: Reduced transmission via compartments established the placenta’s barrier function in mother-to-child transmission. A high maternal viral load and positive HBeAg were risk factors for intrauterine transmission, while negative HBeAg still has the possibility of transmission.KEYWORDS: mother-to-child transmission, hepatitis B virus, intrauterin