Publications by authors named "Soebandrio A"

Introduction: Some people living with HIV (PLWH) receiving ART in Indonesia display poor clearance of replicating virus. This has been associated with HIV-associated sensory neuropathy. Here we assess whether treatment failure reflects the presence of drug resistance mutations.

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  • Indonesia is experiencing H9N2 avian influenza, and this study examined the molecular characteristics of recent isolates from West Java using advanced techniques like RT-qPCR and Sanger sequencing.
  • The analysis revealed that the new virus isolate has 11 amino acid changes compared to a previous isolate, maintaining its connection to the h9.4.2.5 subclade, while showing a specific mutation at antigenic site II.
  • Molecular docking studies indicated that the recent isolate prefers binding to sialic acid found in mammals, which could have implications for the virus's behavior and transmission.
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  • COVID-19 continues to impact global health significantly, with its mechanisms not fully understood; key players in the virus's entry into cells are ACE2 and TMPRSS2, whose genetic variations have been studied for their impact on disease severity.
  • A study conducted in 2022 involving 151 hospitalized COVID-19 patients in Indonesia assessed the relationship between specific genetic polymorphisms (rs2074192 and rs12329760) and the outcomes of the disease, along with demographic data and health status.
  • Although the study found no strong links between the tested genetic variants and severe disease outcomes, it did note that the TMPRSS2 SNP was associated with higher mortality, and that ACE2 protein levels differed significantly between
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  • * Out of 121 participants, 85 had reactive binding antibodies (BAb), with differences observed between the two vaccine groups in terms of BAb and neutralizing antibody (NAb) levels.
  • * Ultimately, the research indicates that all participants maintained positive NAb levels regardless of prior infection history, underscoring the importance of vaccination strategies in public health during and after the pandemic.
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The avian influenza virus is an infectious agent that may cause global health problems in poultry and is potentially zoonotic. In the recent decades, bacterial-derived sialidases have been extensively studied for their ability to inhibit avian influenza virus infections. In this study, the antiviral activity of NanB sialidase from was investigated through analysis using Madin-Darby canine kidney (MDCK) cells.

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is the leading cause of bacterial pneumonia, bacteremia, and meningitis. Indonesia introduced the pneumococcal conjugate vaccine (PCV) nationwide in 2022. In this study, we present whole genome sequence (WGS) data of 94 isolates that were obtained from hospitalized patients, healthy children, and adult groups from different regions prior to PCV program in Indonesia.

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Malaria eradication efforts prioritize safe and efficient vaccination strategies, although none with high-level efficacy against malaria infection are yet available. Among several vaccine candidates, Sanaria® PfSPZ Vaccine and Sanaria PfSPZ-CVac are, respectively, live radiation- and chemo-attenuated sporozoite vaccines designed to prevent infection with Plasmodium falciparum, the leading cause of malaria-related morbidity and mortality. We are conducting a randomized normal saline placebo-controlled trial called IDSPZV1 that will analyze the safety, tolerability, immunogenicity, and efficacy of PfSPZ Vaccine and PfSPZ-CVac administered pre-deployment to malaria-naive Indonesian soldiers assigned to temporary duties in a high malaria transmission area.

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We investigated the resistance genes, pilus islets, biofilm formation ability and sequence types of multidrug-resistant (MDRSP) isolated from healthy children below 5 years of age in Indonesia. In all, 104 archived MDRSP isolates from previous carriage studies in Indonesia in 2016-2019 were screened for the presence of antibiotic resistance genes and the (pilus islet 1) and (pilus islet 2) genes. Multilocus sequence typing and biofilm formation were determined by PCR sequencing and the ability of cells to adhere to the walls, respectively.

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Objective: This study aims to evaluate the effect of sialidase treatment on monolayer cell behavior using computational screening and an approach to demonstrate interaction between enzyme-based drugs and ligands in host cells.

Materials And Methods: The study was carried out by molecular docking analysis used to predict the interactions between atoms that occur, followed by genetic characterization of sialidase from a wild isolate. Sialidase, which has undergone further production and purification processes exposed to chicken embryonic fibroblast cell culture, and observations-based structural morphology of cells compared between treated cells and normal cells without treatment.

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Pneumococcal conjugate vaccines (PCVs) prevent nasopharyngeal colonization with vaccine serotypes of Streptococcus pneumoniae, leading to reduced transmission of pneumococci and stronger population-level impact of PCVs. In 2017 we conducted a cross-sectional pneumococcal carriage study in Indonesia among children aged <5 years before 13-valent PCV (PCV13) introduction. Nasopharyngeal swabs were collected during visits to community integrated health service posts at one peri-urban and one rural study site.

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Background: Vaccine plays an important role in breaking SARS-CoV-2 transmission and accelerating the path to pandemic recovery. Currently, there is still limited data on heterologous COVID-19 booster vaccination efficacy and effectiveness in Indonesia.

Methods: Antibody response was retrospectively analyzed from 156 serum collected from healthcare workers that have received mRNA-1273 vaccine as the booster against SARS-CoV-2.

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  • Tafenoquine, when given with chloroquine, is used to prevent relapse of Plasmodium vivax malaria, and this study investigates its effectiveness when combined with dihydroartemisinin-piperaquine, especially in areas with chloroquine resistance.
  • In a double-blind study involving Indonesian soldiers with confirmed P vivax malaria, participants were divided into three groups: one receiving dihydroartemisinin-piperaquine alone, another with tafenoquine added, and a third group receiving primaquine with dihydroartemisinin-piperaquine.
  • The findings show a higher 6-month relapse-free efficacy in patients treated with tafenoquine combined with dihydroartemisinin-piperaquine (
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  • Streptococcus pneumoniae is a harmful bacterium causing severe infections, and there is limited research on the antibacterial effects of medicinal plants against it.
  • This study investigates the antibacterial properties of 13 Indonesian medicinal plants, identifying Lawsonia inermis Linn. as the most effective against S. pneumoniae, with a minimum inhibitory concentration (MIC) of 0.16 mg/ml.
  • The research also explores the mechanisms of action, revealing that L. inermis causes bacterial lysis, disrupts cell walls, and alters gene expression, particularly increasing lytA while decreasing peZA and peZT expression.
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Study on sialidases as antiviral agents has been widely performed, but many types of sialidase have not been tested for their antiviral activity. Pasteurella multocida NanB sialidase is one such sialidase that has never been isolated for further research. In this study, the activity of NanB sialidase was investigated in silico by docking the NanB sialidase of Pasteurella multocida to the Neu5Acα(2-6)Gal and Neu5Acα(2-3)Gal ligands.

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We determined the prevalence and epidemiological characteristics of COVID-19 in Jakarta and neighboring areas, Indonesia from March 2020 to February 2021, based on nasopharyngeal/oropharyngeal (NP/OP) swab specimens that were tested at the Eijkman Institute for Molecular Biology, Jakarta. NP/OP swab specimens were collected from COVID-19 suspects or individuals in contact tracing programs from primary healthcare centers (PHC) and hospitals. The specimens were screened for the SARS-CoV-2 by qRT-PCR.

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Background: Cytomegalovirus (CMV) has been linked with cardiovascular disease (CVD) in populations where some individuals are seronegative. However, effects of CMV are unclear in HIV patients who all have high levels of CMV antibodies. Other metrics of their CMV burden are needed.

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Objective: COVID-19 in children poses a significant challenge due to the atypical/asymptomatic presentations. The study is aimed to help understand clinical characteristics in Indonesian children for better management and control of transmission.

Methods: clinical characteristics of children with confirmed COVID-19 were retrospectively analysed from the database dating from March to November 2020.

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  • Small interfering RNA (siRNA) technology is being explored as a new antiviral treatment to combat influenza viruses, especially the highly pathogenic H5N1 strain from Indonesia.
  • The study aimed to enhance the design of siRNA targeting the nucleoprotein gene specifically for the Indonesian H5N1 virus.
  • Results showed that siRNA-NP672 significantly reduced viral production and did not induce mutations in the nucleoprotein gene, indicating its potential as an effective treatment against this strain.
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Background: The COVID-19 disease has overwhelmed and disrupted healthcare services worldwide, particularly healthcare workers (HCW). HCW are essential workers performing any job in a healthcare setting who are potentially directly or indirectly exposed to infectious materials. Our retrospective cohort study aimed to determine the prevalence of COVID-19 infections among HCW in Jakarta and neighbouring areas during the first three months of the pandemic.

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Objective: The avian influenza virus (AIV) subtype H9N2 circulating in Indonesia has raised increasing concern about its impact on poultry and its public health risks. In this study, the H9N2 virus from chicken poultry farms in Java was isolated and characterized molecularly.

Materials And Methods: Thirty-three pooled samples of chicken brain, cloacal swab, trachea, and oviduct were taken from multiple chickens infected with AIV in five regions of Java, Indonesia.

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The presence of Zika virus (ZIKV) in Indonesia has been recognized since the 1970s, but its transmission dynamics there have been poorly understood. To understand more fully the geographic distribution and burden of ZIKV infection, we performed retrospective serological tests on specimens collected from asymptomatic children age 5 to 9 years old living at 30 sites in 14 provinces. Of 870 serum samples tested, 9.

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In diphtheria laboratory examinations, the PCR test can be applied to isolates and clinical specimens. This study aimed to develop a PCR assay to identify the species and toxigenicity of diphtheria-causing bacteria, including the prediction of some NTTB types. Seven reference isolates, four synthetic DNA samples, 36 stored isolates, and 487 clinical samples used for PCR optimization.

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Background: A catheter-associated urinary tract infection (CA-UTI) is preceded by biofilm formation, which is related to several risk factors such as gender, age, diabetic status, duration of catheterization, bacteriuria before catheterization, virulence gene factor, and antibiotic usage.

Aims: This study aims to identify the microbial composition of catheter samples, including its corresponding comparison with urine samples, to determine the most important risk factors of biofilm formation and characterize the virulence gene factors that correlate with biofilm formation.

Methods: A longitudinal cross-sectional study was conducted on 109 catheterized patients from September 2017 to January 2018.

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Cytomegalovirus (CMV) affects γδ T-cell profiles in healthy individuals and transplant recipients, but the effects of HIV and CMV have not been distinguished in HIV patients. CMV-seropositive Indonesian HIV patients (n = 40) were studied before ART and after six months, alongside healthy controls (n = 20). 50% of patients started ART with detectable CMV DNA.

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