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Acta Biochimica Indonesiana
Published by Perhimpunan Biokimia dan Biologi Molekuler Indonesia
ISSN : 26546108     EISSN : 26543222     DOI : https://doi.org/10.32889
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
Acta Biochimica Indonesiana (ActaBiolna) is a peer-reviewed and open-access journal that disseminates original research articles and review articles covering diverse topics in Biochemistry and Molecular Biology. The journal is published biannually by Indonesian Society for Biochemistry and Molecular Biology.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 7 Documents
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Search results for , issue "Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana" : 7 Documents clear
Genetic polymorphism of ALDH2 in Indonesia’s Minang ethnic Abdul Halim Sadikin; Irene Dian; Mukharjon Mukharjon; Rini Puspitaningtum; Septelia Inawati Wanandi
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.14

Abstract

Background: In some people, acetaldehyde, a toxic product from ethanol oxidation, cannot be oxidized to acetate. The excess of acetaldehyde could cause facial flushing, dizziness, and hypertension when they consume ethanol. This ethanol sensitivity is caused by a deficiency of ALDH2. Objective: This study aims to analyze and count the polymorphism frequency of the ALDH2 gene in Indonesia’s Minang ethnic. Methods: DNA samples were taken randomly from hair bulbous of 60 subjects (male and female, 3rd generation). A nested polymerase chain reaction was conducted to amplify the ALDH2 in the samples. Afterward, restriction fragment length polymorphism (RFLP) was conducted to the amplicons using the EcoRI restriction enzyme. The measured parameters were the distribution of the wildtype, atypical homozygote, and heterozygote. Results: Results showed that out of 60 subjects, 53.33% have an atypical homozygote gene (subjects prone to hypersensitive to alcohol), 28.33% have a heterozygote gene, and 18.33% have a wildtype gene. The frequency of the atypical alleles in Minang ethnic is 0.675. Conclusion: The atypical ALDH2 allele was much higher than the normal ALDH2 allele, in which most participants have atypical homozygote ALDH2, suggesting the samples are sensitive to alcohol.
The relationship between vitamin E and C intake with total activity of erythrocytes and breast milk superoxide dismutase in lactating mothers Ninik Mudjihartini; Diyah Eka Andayani; Sheira Taflah Putri Handana
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.15

Abstract

Background: Human milk contains many components, one of them is superoxide dismutase (SOD). Vitamin E and C, together with SOD, can prevent oxidative stress. Objective: This study investigated the correlation between vitamin E and vitamin C intake, with total SOD activity, in erythrocyte and breast milk among lactating mothers in Jakarta, Indonesia. Methods: Sixty lactating mothers aged 20–40 years were recruited in 1–6 months postpartum in Grogol Petamburan and the Cilincing Public Health Centre from March 2019 until April 2019. Vitamins E and C dietary intake were collected using a semi-quantitative food frequency questionnaire. SOD total activity of erythrocyte and breast milk was measured using the Ransod kit 125. Results: The median value of vitamin E intake was 6.50 mg/day, showing 91.7% of patients do not meet recommended daily intake (RDA) (19 gram/day), and the median of vitamin C intake was 120.05 mg/day with 70% participants fulfilling RDA. SOD total activity in erythrocyte and breastmilk showed a median value of 423.73 U/mL and 58.34 U/mL, respectively. The correlation between vitamin E intake with total SOD activity in erythrocyte (r = 0.143 p > 0,05) and breast milk (r = 0.041, p > 0,05) was not significant. Vitamin C intake was also not significantly correlated with SOD total activity in the erythrocyte. Conclusion: There is no significant correlation between vitamin E and vitamin C intake with the total activity of SOD of erythrocyte and breast milk in lactating mothers.
The role of senescence-associated secretory phenotype (SASP) in cellular senescene Filda Vionita Irene de Lima; Novi Silvia Hardiany
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.33

Abstract

Cellular senescence is one of the defense mechanisms of cells against oncogenic signals by permanently stopping the proliferation of the cell. Senescence cells show a similar characteristic, one of them is senescence-associated secretory phenotype (SASP). SASPs secrete various components, divided according to the type of molecule secreted and based on their mechanism of action against target cells. The main components of SASP are pro-inflammatory mediators. SASP performs dual and contradictory roles, which concurrently provides beneficial effects such as tumor suppression due to the termination of proliferation, recruitment of immune cells, and tissue repair. On the other hand, SASP produces detrimental effects on cells undergoing the senescence process as well as cells in the surrounding environment by increasing tumorigenesis. This review article explains the various components of the SASP, the role of SASP in the inflammatory process, tumor suppression, and tumorigenesis.
Optimization of multiplex PCR composition to screen for SARS-CoV-2 variants of concern Maya Savira; Enikarmila Asni; Rahmat Azhari Kemal
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.58

Abstract

Background: The ongoing COVID-19 pandemic has led to the emergence of several variants of concern. To rapidly identify those variants, screening samples for whole-genome sequencing (WGS) prioritization could be performed. Objective: We optimized the polymerase chain reaction (PCR) screening method to identify the mutation in spike and ORF1a regions. Methods: We adopted primers targeting mutation in spike and ORF1a region from another study. We optimized the PCR screening method using kits readily available in Indonesia. Firstly, we compared N1 and N2 primers as internal positive control. We also compared GoTaq® 1-Step RT-qPCR System and Indonesia TFRIC-19 BioCOV-19 for the multiplex reaction. We used the optimized composition to screen SARS-CoV-2 positive samples from April – June 2021. Samples with spike and/or ORF1a target failure were subjected to whole genome sequencing (WGS). Results: The results demonstrated the N2 BioCOV-19 reaction as the optimized multiplex PCR composition for spike and ORF1a mutations screening. Whole-genome sequencing has shown that a sample with spike and ORF1a targets failure to be Alpha variant, while other samples with single target failure as non-variants of concern. Therefore, a multiplex RT-PCR composition has been optimized to detect mutation in spike and ORF1a regions. Conclusion: We have optimized a multiplex RT-PCR composition to detect mutation in spike and ORF1a regions.
Molecular docking of phytosterols in Stenochlaena palustris as anti-breast cancer Dona Marisa; Lisda Hayatie; Siti Juliati; Eko Suhartono; Noer Komari
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.59

Abstract

Background: Stenochlaena palustris, also known as kelakai or lemidi, is frequently linked to anti-inflammatory, anti-bacterial, anti-fungal, and antioxidant properties. S. palustris phytosterols are suggested to suppress the progression of breast cancer. Objective: The objective of this study is to evaluate the potential of phytosterols found in S. palustris to act as estrogen receptor (ER) inhibitors. Methods: Phytosterols (alpha-tocopherol, beta-sitosterol, campesterol, stigmasterol, fucosterol) were docked to estrogen receptor (PDB ID: 7KBS). Molecular docking parameters included Gibb's free energy and interactions between ligand and protein. ADMET properties were analyzed using pkCSM and SwissADME. Results: Alpha-tocopherol showed the highest interaction with the estrogen receptor with ΔG value -8. 9254 kcal/mol (the native ligand, raloxifene, had a G value of -12.052 kcal/mol). Leu387 (hydrogen bond); Phe404 (Phi-phi-T shaped), Leu391, Leu346, Trp383, Leu354, Ala350, Leu525, Leu349 (Alkyl) were among the residues by which a-tocopherol interacted with ER. Alpha-tocopherol has no hepatotoxicity and no skin sensitization. Conclusion: By suppressing ERa, phytosterols from S. palustris may have potential anti-breast cancer activity and may be used to prevent estrogen-dependent human cancers like breast cancer.
Correlation between malondialdehyde level and FOXO3 and CASP3 mRNA expression changed in early-onset preeclampsia placenta Ni Made Wiasty Sukanty; Febriana Catur Iswanti; Syarifah Dewi; Muhammad Faruqi; Alyssa Shafa Andiana; Ani Retno Prijanti
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.61

Abstract

Background: Preeclampsia is one of the factors causing the high maternal mortality rate. The risk of morbidity and mortality is higher in Early Onset Preeclampsia (EOPE). Failure of spiral artery remodeling can cause oxidative stress that can inhibit placental development and increase trophoblast apoptosis. Objective: This study aims to analyze the oxidative stress and apoptosis of EOPE placentas. Methods: This study is an observational study with a cross-sectional design. A total of 31 EOPE placentas and 31 normal term placentas were used to measure the concentration of malondialdehyde (MDA) and the relative mRNA expression of FOXO3 and CASP3 using the spectrophotometric and RT-qPCR methods. Results: There was no difference in MDA concentration (p = 0.580) and FOXO3 (p = 0.467) and CASP3 (p = 0.243) mRNA expression in the normal and EOPE groups. There was a strong positive correlation between FOXO3 and CASP3 mRNA expression in the normal (p= 0.0001; r = 0.938) and EOPE groups (p = 0.0001; r = 0.855). There was no correlation between MDA concentration to FOXO3 (p = 0.124; r = 0.282) and CASP3 (p = 0.569; r = 0.106) mRNA expression in normal placenta. There was positive correlation between MDA concentration to FOXO3 (p = 0.016; r = 0.429) and CASP3 mRNA expression in EOPE placenta (p = 0.028; r = 0.395). Conclusion: These results indicate that cell integrity is still maintained through the autophagy process and the level of apoptosis in the EOPE placenta is regulated by ROS through FOXO3.
Inhibition of cancer cells using target-specific 2A3 antibody-conjugated gold nanoclusters Jui-Chi Kuo; Tsung-Rong Kuo; Fajar Rinawati; Erna Susilowati; Sucipto; Dyah Ika Krisnawati
Acta Biochimica Indonesiana Vol. 4 No. 2 (2021): Acta Biochimica Indonesiana
Publisher : Indonesian Society for Biochemistry and Molecular Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32889/actabioina.69

Abstract

Background: Metal nanoclusters (NCs) with outstanding structural and optical properties have been intensively validated for applications in nanomedicine and nanotechnology. Carcinoembryonic antigen-related cell adhesion molecule 6 (CEACAM6) is overexpressed in many cancer cells. Objective: The gold nanoclusters conjugated with a single domain antibody targeting CEACAM6 of 2A3 (2A3-AuNCs) were synthesized for the inhibition of cancer cells. Methods: 2A3-AuNCs were prepared via a facile hydrothermal approach. The cell viability was measured by resazurin dye reduction assay. The cell death was analyzed by fluorescence imaging. Results: Structural and optical characterizations demonstrated the successful synthesis of 2A3-AuNCs with a roughly spherical shape and a size of 2.35 nm. The 2A3-AuNCs revealed a maximum fluorescence intensity at 350 nm with a fluorescence quantum yield of 4.0%. The cell viability assay indicated that 2A3-AuNCs could inhibit the growths of cancer cells with overexpressed CEACAM6, including breast cancer MDA-MB-231 and MDA-MB-468 cells. The fluorescence imaging results also demonstrated that 2A3-AuNCs could inhibit the growth of cancer cells with MDA-MB-231 and MDA-MB-468 cells. Conclusion: Combination with the results of cell viability assay and fluorescence imaging, the surface ligand of 2A3 antibody on 2A3-AuNCs exhibited promising inhibition of CEACAM6 overexpressed cancer cells. Our work provides a potential application of AuNCs in cancer therapy.

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