Publications by authors named "Myint W"

Background: Societal attitude toward spousal physical abuse plays a crucial role in preventing violence against women. Yet, this public health issue has been insufficiently addressed. This study examines the relationship between the societal attitude toward spousal physical abuse and various social determinants.

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The use of vanadium(V)-based materials as electrode materials in electrochemical energy storage (EES) devices is promising due to their structural and chemical variety, abundance, and low cost. V-based materials with a layered structure and high multielectron transfer in the redox reaction have been actively explored for energy storage. Our current work presents the structural and electrochemical properties of a vanadium-based composite with TiO@TiC MXene, referred to as VM.

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APOBEC3 (or A3) enzymes have emerged as potential therapeutic targets due to their role in introducing heterogeneity in viruses and cancer, often leading to drug resistance. Inhibiting these enzymes has remained elusive as initial phosphodiester (PO) linked DNA based inhibitors lack stability and potency. We have enhanced both potency and nuclease stability, of 2'-deoxy-zebularine (dZ), substrate-based oligonucleotide inhibitors for two critical A3's: A3A and A3G.

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Background: Cervical cancer (CC) is the fourth leading cause of death among cancer cases and women intimate partner violence (IPV) survivors are more likely to experience CC-related mortality. This study aims to evaluate the factors influencing CC screening uptake among reproductive-aged women, especially among IPV survivors in the Philippines.

Method: We used the 2022 Philippines' National Demographic and Health Survey.

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Aims: To evaluate factors associated with fall protection motivation to engage in fall preventive behaviour among rural community-dwelling older adults aged 55 and above using the protection motivation theory scale.

Design: A cross-sectional study.

Methods: The study was conducted in a healthcare clinic in Malaysia, using multistage random sampling from November 2021 to January 2022.

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Proteasome subunit hRpn13 is partially proteolyzed in certain cancer cell types to generate hRpn13 by degradation of its UCHL5/Uch37-binding DEUBAD domain and retention of an intact proteasome- and ubiquitin-binding Pru domain. By using structure-guided virtual screening, we identify an hRpn13 binder (XL44) and solve its structure ligated to hRpn13 Pru by integrated X-ray crystallography and NMR to reveal its targeting mechanism. Surprisingly, hRpn13 is depleted in myeloma cells following treatment with XL44.

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Background: Despite an estimated 8% prevalence of mental disorders in Myanmar, the treatment gap is high, up to 90%. This project aimed to assess the effects of a series of activities implemented by the Myanmar Medical Association over a 2-year period in Hlaing Thar Yar Township involving community health workers (CHWs) and general practitioners (GPs) on the identification, diagnosis and management of people with psychotic disorders, depression and epilepsy.

Methods: Seventy-six CHWs were trained to raise awareness, identify people with mental disorders and refer them to GPs.

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Background: Zoonotic influenza surveillance in Myanmar is sparse, despite the risks of introduction of such viruses from neighboring countries that could impact the poultry industry and lead to spillover to humans.

Methods: In July and August 2019, our multi-institutional partnership conducted a One Health-oriented, cross-sectional surveillance (weekly for 3 weeks) for influenza A and influenza D viruses at the three largest live bird markets in Yangon, Myanmar.

Results: The 27 bioaerosols, 90 bird cage swabs, 90 bird oropharyngeals, and 90 human nasopharyngeal samples yielded molecular influenza A detections in 8 bioaerosols (30.

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The E3 ligase E6AP/UBE3A has a dedicated binding site in the 26S proteasome provided by the RAZUL domain of substrate receptor hRpn10/S5a/PSMD4. Guided by RAZUL sequence similarity, we test and demonstrate here that the E6AP AZUL binds transiently to the UBA of proteasomal shuttle factor UBQLN1/2. Despite a weak binding affinity, E6AP AZUL is recruited to UBQLN2 biomolecular condensates in vitro and E6AP interacts with UBQLN1/2 in cellulo.

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Article Synopsis
  • Transdisciplinary research (TDR) is aimed at creating knowledge to help various groups achieve sustainability, but its development has mainly been influenced by researchers from the global North.* -
  • This study analyzes six case studies in Asia, Latin America, and Africa to identify how different contextual factors, such as political stability and support infrastructure, impact TDR design and implementation.* -
  • The findings suggest that TDR in the global South faces unique challenges but also shows diversity in contexts; thus, adapting methodologies and reassessing what "good science" means is essential for impactful research.*
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APOBEC3 proteins (A3s) are enzymes that catalyze the deamination of cytidine to uridine in single-stranded DNA (ssDNA) substrates, thus playing a key role in innate antiviral immunity. However, the APOBEC3 family has also been linked to many mutational signatures in cancer cells, which has led to an intense interest to develop inhibitors of A3's catalytic activity as therapeutics as well as tools to study A3's biochemistry, structure, and cellular function. Recent studies have shown that ssDNA containing 2'-deoxy-zebularine (dZ-ssDNA) is an inhibitor of A3s such as A3A, A3B, and A3G, although the atomic determinants of this activity have remained unknown.

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Aims: The aim of this study is to evaluate an evidence-based fall risk screening tool to predict the risk of falls suitable for independent community-dwelling older adults guided by the World Health Organization's International Classification of Functioning, Disability and Health (WHO-ICF) components, and to examine the reliability and validity of the fall risk screening tool to predict fall risks, and to examine the feasibility of tools among independent community-dwelling older adults.

Methods: A systematic literature search guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement was performed using the EBSCOHost® platform, ScienceDirect, Scopus and Google Scholar between July and August 2021. Studies from January 2010 to January 2021 were eligible for review.

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Article Synopsis
  • Clozapine combined with electroconvulsive therapy (ECT) is an effective treatment for patients with schizophrenia who do not respond to standard therapies, particularly in Asian populations.
  • A study utilized machine learning techniques, specifically random forest and LASSO models, to create a prediction model identifying key variables that influence the success of this treatment combination, with significant results from a sample of 3,744 patients.
  • Findings highlighted important factors such as inpatient status, BMI, and duration of illness, enabling a more tailored approach in treating schizophrenia through personalized medicine.
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Lumpy skin disease virus (LSDV) causes lumpy skin disease in cattle and buffaloes, which is associated with significant animal production and economic losses. Since the 2000s, LSDV has spread from Africa to several countries in the Middle East; Europe; and Asia; including, more recently, several south-east Asian countries. In November 2020, Myanmar reported its first LSD outbreak.

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Over the last few decades, protein NMR isotope labeling methods using E. coli based expression have revolutionized the information accessible from biomolecular NMR experiments. Selective labeling of a protein of interest in a multi-protein complex can significantly reduce the number of cross-peaks and allow for study of large protein complexes.

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Background: Many countries have been trying to eliminate Mother-to-Child transmission of the Human Immunodeficiency Virus (HIV) and achieve the 90-90-90 target goals. The targets mean that 90% of People Living with HIV (PLWHIV) know their HIV status, 90% of those who are infected receive Antiretroviral treatment (ART), and 90% of those achieve viral suppression. Despite some progress, the goals have not been met in the Philippines, Myanmar, and Cambodia, countries with relatively high or growing HIV prevalence.

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Key populations, ie, female sex workers, men who have sex with men, transgender people, people who inject drugs, and people in prisons and other closed settings, experience stigma, discrimination, and structural barriers when accessing HIV prevention and care. Public health facilities in Myanmar became increasingly involved in HIV service delivery, leading to an urgent need for healthcare workers to provide client-centred, key population-friendly services. Between July 2017-June 2018, the Myanmar Ministry of Health and Sports and National AIDS Programme collaborated with ICAP at Columbia University and the US Centers for Disease Control and Prevention to implement a quasi-experimental, multicomponent intervention including healthcare worker sensitization training with pre- and post- knowledge assessments, healthcare worker and client satisfaction surveys, and structural changes.

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The human cytidine deaminase family of APOBEC3s (A3s) plays critical roles in both innate immunity and the development of cancers. A3s comprise seven functionally overlapping but distinct members that can be exploited as nucleotide base editors for treating genetic diseases. Although overall structurally similar, A3s have vastly varying deamination activity and substrate preferences.

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Background: Antenatal care (ANC), delivery by skilled birth attendants, and postnatal care (PNC) are critical components of maternal health services for reducing maternal mortality. The study aimed to compare the utilization of maternal health services in the two most recent rounds of Ethiopia Demographic and Health Surveys (EDHS) and identify the factors influencing the utilization of these services using the 2016 EDHS.

Methods: Two rounds of EDHS data in 2011 and 2016 were used to estimate the proportion of women who had ANC, delivered by skilled birth attendants, and had a postnatal checkup and other characteristics of the surveyed population.

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APOBEC3G (A3G) is a single-stranded DNA (ssDNA) cytosine deaminase that can restrict HIV-1 infection by mutating the viral genome. A3G consists of a non-catalytic N-terminal domain (NTD) and a catalytic C-terminal domain (CTD) connected by a short linker. While the CTD catalyzes cytosine deamination, the NTD is believed to provide additional affinity for ssDNA.

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Article Synopsis
  • The study investigates the coprescription of mood stabilizers (MSs) with antipsychotics in patients with schizophrenia across 14 Asian countries, finding that 13.6% of patients received MSs, often at high doses.
  • Factors associated with MS use included demographic variables like younger age and female sex, as well as clinical aspects like longer illness duration and more severe symptoms.
  • Results suggest that patients on high doses of MSs had a less favorable illness trajectory and were more challenging to treat, indicating that adjunctive MS treatment may reflect greater severity of illness.
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International migration has become a global phenomenon bringing with it complex and interrelated issues related to the physical and mental well-being of the people involved. This study investigated the mental well-being and factors associated with mental health among Myanmar migrant workers (MMW) in Malaysia. The cross-sectional study was conducted in Penang, Malaysia by using the WHO-5 Well-Being Index Scale (WHO-5) and the Mental Health subscale of 36 items in the Short Form Health Survey (SF-36).

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Article Synopsis
  • Patterns of clinical use of long-acting injectable (LAI) antipsychotics for treating schizophrenia in Asia are not well documented, with an average of 17.9% of patients receiving these medications across 15 countries.
  • Patients on LAIs tend to be older, have a history of multiple hospitalizations, and experience more severe symptoms like disorganized behavior or aggression, but they also show slightly better psychosocial functioning.
  • There are significant variations in the use of LAI antipsychotics among Asian countries, and clinicians need to consider both the benefits and potential adverse effects when prescribing these treatments.
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The potent antiretroviral protein APOBEC3G (A3G) specifically targets and deaminates deoxycytidine nucleotides, generating deoxyuridine, in single stranded DNA (ssDNA) intermediates produced during HIV replication. A non-catalytic domain in A3G binds strongly to RNA, an interaction crucial for recruitment of A3G to the virion; yet, A3G displays no deamination activity for cytidines in viral RNA. Here, we report NMR and molecular dynamics (MD) simulation analysis for interactions between A3Gctd and multiple substrate or non-substrate DNA and RNA, in combination with deamination assays.

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Article Synopsis
  • Disorganized speech is a key feature of schizophrenia but there is limited research on how it impacts psychotropic drug prescribing in large patient samples.
  • A study of 3,744 schizophrenia patients across 15 Asian countries found that severe disorganized speech affects treatment, notably leading to increased use of mood stabilizers and diazepam.
  • The findings suggest that the link between disorganized speech and mood stabilizer use may relate to behaviors like impulsiveness and aggressiveness in patients, challenging traditional classifications of mental disorders.
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