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In Silico Analysis of Inhibitor Potential of Punicalagin Compound in Pomegranate (Punica granatum) Against NS5 DENV-3 Protein Kautsar, Radinal; Rachmawati, Yuanita; Rokhim, Saiku; Sucipto, Teguh Hari; Damayanti, Mamik; Ramadhani, Aisyah Hadi
Indonesian Journal of Tropical and Infectious Disease Vol. 12 No. 1 (2024)
Publisher : Institute of Topical Disease Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijtid.v12i1.52320

Abstract

Indonesia is one of the Dengue Virus (DENV) endemic areas which are dominated by DENV-2 and DENV-3. Until now, no specific drug therapy has been found to cure Dengue Virus Infection (DVI). Punicalagin is one of the active compounds that have the potential to be used as an antiviral. Unfortunately, not many studies have used punicalagin as a DENV antivirus. This study aims to determine the inhibitory potential of punicalagin compounds against NS5 DENV-3 protein through molecular docking. Molecular docking was performed using AutoDock Tools, ChemDraw, and Discovery Studio Visualizer. The target protein used is NS5 DENV-3 protein with PDB ID code: 4V0Q. The ribavirin compound was used as a positive control. The results obtained show that the punicalagin compound has the ability to attach to target receptors in the C-Terminal domain complex. This docking produces a bond free energy (ΔG) of -6.39 kcal/mol. This result is better than the ΔG of the control compound. Punicalagin's Inhibition Constant (Ki) value also showed better results than ribavirin. So it can be seen that the compound punicalagin effectively inhibits DENV replication and has the potential as a DENV drug candidate. 
Isolation and Enzymatic Degradation of Hemicellulose from Corncobs Waste Fithri, Lailatul; Damayanti, Mamik; Ayu, Anna Kartika
Journal of Bio-Molecule Research and Engineering Vol 1 No 1 (2022)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbiome.v1i1.35855

Abstract

Corncobs are rich in hemicellulose, which has very important applications in the food industry and biofuels. Hemicellulose is a heteropolysacharide which contains hexosan such as glucan, mannan, galactan and pentosan such as xylan and arabinan. The aims of this research are determining the optimum condition of hemicellulose isolation and identifying enzymatic degradation products of hemicellulose. Hemicellulose is extracted from corn cobs using various NaOH concentrations and extraction times. Acetic acid was added to the mixture after hemicellulose A reflux process, whereas hemicellulose B was precipitated with ethanol 96%. Enzymatic hydrolysis is carried out using xylanolytic enzyme from a recombinant of E. coli DH5α. The yield of hemicellulose is nearly 64.74% (w/w) using NaOH 4 M for 2 h of extraction time. Based on High Performance Liquid Chromatography data indicating that the enzymatic hydrolysis products of hemicellulose A are xylose and arabinose. While xylose, arabinose, and xylooligosaccharide are hemicellulose B and unextracted hemicellulose hydrolysis products.
Phylogenetic analysis of DENV-1 isolated in Surabaya, Indonesia Rahmafitria, Fistara Lesti; Mahfudhah, Dzikra Nasyaya; Sucipto, Teguh Hari; Herdyastuti, Nuniek; Anggarani, Mirwa Adiprahara; Fauziyah, Shifa; Damayanti, Mamik
Journal of Bio-Molecule Research and Engineering Vol 1 No 2 (2022)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbiome.v1i2.41463

Abstract

Dengue virus (DENV1-4) belongs to the Flaviviridae family, which is transmitted by the Aedes mosquito vector and is the main cause of dengue fever and dengue hemorrhagic fever. Since one of the DENV serotypes, DENV1, has become an endemic known to be circulating worldwide, including in Indonesia, it becomes necessary to carry out molecular epidemiological research using phylogenetic analysis with two methods, neighbor-joining (NJ) and UPGMA. This study aims to analyze the DENV-1 relationship and obtain information regarding the differences between those methods, including the level of accuracy. This study used one DENV-1 sequence isolated in Surabaya, aligned with similar sequences on the GenBank. The results showed two comparisons. First, in the NJ method, the DENV-1 sequence samples in Surabaya with branch length 0,000 were similar to the DENV-1 in Malaysia, and Singapore, with branch lengths 0,000; 0,002;. which belong to Genotype 1. The UPGMA method resulted in the DENV-1 sequence in Surabaya with branch length 0,000 were similar to the DENV-1 in Malaysia with with branch length 0,000, which belong to Genotype 1. Second, their level of accuracy, which is in the NJ method, the construction of phylogenetic trees is based on periodic evolutionary times. In contrast, UPGMA assumes that each sequence is found at the same evolutionary time, which makes this method less accurate than the NJ method. We can conclude that the construction and analysis of the phylogenetic tree of the DENV1 sequence isolated in Surabaya have higher similarity and accuracy using the NJ method.
Elimination of Dengue Virus with Antiviral Compound and Appropriate Technology Farihah, Neni Isna; Wijayanti, Alvia Rachma; Sucipto, Teguh Hari; Putri, Deva Permata; Ihsan, Anaqi Syaddad; Fauziyah, Shifa; Saputri, Ratih Dewi; Damayanti, Mamik
Journal of Bio-Molecule Research and Engineering Vol 2 No 1 (2023)
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbiome.v2i1.44803

Abstract

Infection with the dengue virus by the Aedes aegypti mosquito vector is in the form of dengue hemorrhagic fever (DHF), which can cause a decrease in platelets and even death. The parasitic drug niclosamide, which is effective against dengue virus serotype 2 (DENV-2) is used to prevent further dengue virus infection. Many tests were carried out using inhibitors such as doxorubicin (SA-17), glycoside inhibitors in the form of deocynojirimycin (DNJ) and castanospermine (CSP), carbohydrate-binding agents (CBA), and the use of heparan sulfate aimed at inhibition of the adsorption process and replication process, as well as improper protein folding to prevent the conformation of virus merger. The elimination process can also be carried out using antiviral compounds found in the leaves of Psidium guajava and Carica papaya, which have inhibitory activities of 92.6% and 89.5%, respectively; propyl gallate, with a percent inhibition of dengue virus envelope protein serotype 2 of 53-9.85%; isobutyl gallate, with CC50 values of 167.19 g/mL and an inhibitory value (IC50) of 4.45; Cissampelos Pariera Linn methanol extract, with progressive inhibition as the Cipa extract concentration increased with an IC50 value of 6.1μg/ml Preventive methods are also carried out in several ways, namely by utilizing hydrophobic liquid in the form of silicone oil (low-viscosity polydimethylsiloxane, or L-PDMS), the use of eave tubes in home tubes inserted with insecticides, and utilizing ultrasound with a frequency of 100 kHz and 90 dB to repel mosquitoes carrying dengue virus vectors.