MyMedR

Displaying all 11 publications

Abstract:

Sort:

Fulltext Knowledge, attitude and practice (KAP) concerning cervical cancer and screening among rural and urban women in six provinces of the Democratic People's Republic of Korea

Tran NT, Choe SI, Taylor R, Ko WS, Pyo HS, So HC

Asian Pac J Cancer Prev, 2011;12(11):3029-33.
PMID: 22393985

BACKGROUND: This study assessed women from the Democratic People's Republic of Korea for: (i) their level of knowledge of cervical cancer and attitudes and practices concerning cervical screening (KAP); and (ii) differences in KAP between rural and urban groups.

METHODS: In a descriptive cross-sectional study, a purposive sample of 200 women in 6 provinces of DPRK (rural: n=99, urban: n=101) were interviewed using a standardized questionnaire. Differences between proportions were assessed using the χ2 test. Significance was defined as p<0.05.

RESULTS: 63% of rural and 60% of urban participants had heard of cervical cancer (p>0.05). 42% knew that it is the most common cancer of the female reproductive tract, 55% knew that all women are at risk, but only 36% were aware of cervical cancer's preventability. Some 13% of rural and 29% of urban respondents had heard of cervical cytology testing (p<0.001). Only 6% of participants had ever received a cervical cytology smear. Among the reasons for not screening, 48% mentioned a lack of awareness of cervical cytology; 47% their dislike of pelvic examinations; 17% of rural and 31% of urban interviewees reported the absence of symptoms (p<0.05); and 62% of rural and 0% of urban women mentioned travelling long distances to service delivery points (p<0.001).

CONCLUSIONS: There is a reasonable level of knowledge of cervical cancer among North Korean women; however, there are major gaps regarding awareness of its preventability and actual uptake of cytology screening services. There are no significant differences between rural and urban women with regard to their KAP. Large scale health promotion campaigns are needed to educate women and the community about cervical cancer and its preventability through screening. The national health care system needs to ensure that screening services are effective, accessible, feasible and acceptable to women.
Knowledge, attitude and practice (KAP) concerning cervical cancer and screening among rural and urban female healthcare practitioners in the Democratic People's Republic of Korea

Tran NT, Taylor R, Choe SI, Pyo HS, Kim OS, So HC

Asian Pac J Cancer Prev, 2011;12(11):3023-8.
PMID: 22393984

BACKGROUND AND OBJECTIVE: Little is known about cervical cancer (CC) in the Democratic People's Republic of Korea (DPRK). This study examines the knowledge, attitudes and practices (KAP) concerning CC and screening among female health care practitioners (HCPs), and whether differences exist between rural and urban HCPs.

METHOD: In a descriptive cross-sectional study, a purposive sample of 200 women HCPs from 128 health care centers in 6 provinces of DPRK was interviewed using a standardized questionnaire.

RESULTS: 98% of HCPs were aware of CC. Awareness of the national CC policy was significantly lower in rural (44%) than urban (62%) respondents (p<0.05). Fewer rural (71%) than urban (89%) HCPs knew of cervical cytology (p<0.05). Around 30% of HCPs were aware of the association between CC and human papillomavirus infection. Only 13% of HCPs had ever had a cervical cytology smear. Only 4% of rural and 21% of urban practitioners (p<0.05) provided cytology; all used unaided visual inspection of the cervix without staining to determine whether cytology testing was indicated. For all, screening intervals depended on presence of symptoms.

CONCLUSION: Misconceptions and ineffective clinical practices regarding screening need to be urgently addressed among both rural and urban HCPs. There are no major differences between rural and urban HCPs regarding their KAP.
Feasibility, efficacy, safety, and acceptability of mifepristone-misoprostol for medical abortion in the Democratic People's Republic of Korea

Tran NT, Jang MC, Choe YS, Ko WS, Pyo HS, Kim OS

Int J Gynaecol Obstet, 2010 Jun;109(3):209-12.
PMID: 20206354 DOI: 10.1016/j.ijgo.2010.01.012

To examine the feasibility, efficacy, safety, and acceptability of medical abortion among rural and urban women up to 56 days of pregnancy in the Democratic People's Republic of Korea.
Engaging policy makers in road safety research in Malaysia: a theoretical and contextual analysis

Tran NT, Hyder AA, Kulanthayan S, Singh S, Umar RS

Health Policy, 2009 Apr;90(1):58-65.
PMID: 18937995 DOI: 10.1016/j.healthpol.2008.08.009

Road traffic injuries (RTIs) are a growing public health problem that must be addressed through evidence-based interventions including policy-level changes such as the enactment of legislation to mandate specific behaviors and practices. Policy makers need to be engaged in road safety research to ensure that road safety policies are grounded in scientific evidence. This paper examines the strategies used to engage policy makers and other stakeholder groups and discusses the challenges that result from a multi-disciplinary, inter-sectoral collaboration. A framework for engaging policy makers in research was developed and applied to describe an example of collective road safety research in Malaysia. Key components of this framework include readiness, assessment, planning, implementation/evaluation, and policy development/sustainability. The case study of a collaborative intervention trial for the prevention of motorcycle crashes and deaths in Malaysia serves as a model for policy engagement by road safety and injury researchers. The analytic description of this research process in Malaysia demonstrates that the framework, through its five stages, can be used as a tool to guide the integration of needed research evidence into policy for road safety and injury prevention.
Fulltext Modulation of Crustacean Innate Immune Response by Amino Acids and Their Metabolites: Inferences From Other Species

Huang Z, Aweya JJ, Zhu C, Tran NT, Hong Y, Li S, et al.

Front Immunol, 2020;11:574721.
PMID: 33224140 DOI: 10.3389/fimmu.2020.574721

Aquaculture production of crustaceans (mainly shrimp and crabs) has expanded globally, but disease outbreaks and pathogenic infections have hampered production in the last two decades. As invertebrates, crustaceans lack an adaptive immune system and mainly defend and protect themselves using their innate immune system. The immune system derives energy and metabolites from nutrients, with amino acids constituting one such source. A growing number of studies have shown that amino acids and their metabolites are involved in the activation, synthesis, proliferation, and differentiation of immune cells, as well as in the activation of immune related signaling pathways, reduction of inflammatory response and regulation of oxidative stress. Key enzymes in amino acid metabolism have also been implicated in the regulation of the immune system. Here, we reviewed the role played by amino acids and their metabolites in immune-modulation in crustaceans. Information is inferred from mammals and fish where none exists for crustaceans. Research themes are identified and the relevant research gaps highlighted for further studies.
The Microbial Composition of Penaeid Shrimps' Hepatopancreas Is Modulated by Hemocyanin

Zheng Z, Aweya JJ, Bao S, Yao D, Li S, Tran NT, et al.

J Immunol, 2021 12 01;207(11):2733-2743.
PMID: 34670821 DOI: 10.4049/jimmunol.2100746

Aquatic organisms have to produce proteins or factors that help maintain a stable relationship with microbiota and prevent colonization by pathogenic microorganisms. In crustaceans and other aquatic invertebrates, relatively few of these host factors have been characterized. In this study, we show that the respiratory glycoprotein hemocyanin is a crucial host factor that modulates microbial composition and diversity in the hepatopancreas of penaeid shrimp. Diseased penaeid shrimp (Penaeus vannamei), had an empty gastrointestinal tract with atrophied hepatopancreas, expressed low hemocyanin, and high total bacterial abundance, with Vibrio as the dominant bacteria. Similarly, shrimp depleted of hemocyanin had mitochondrial depolarization, increased reactive oxygen species (ROS) levels, and dysregulation of several energy metabolism-related genes. Hemocyanin silencing together with ROS scavenger (N-acetylcysteine) treatment improved microbial diversity and decreased Vibrio dominance in the hepatopancreas. However, fecal microbiota transplantation after hemocyanin knockdown could not restore the microbial composition in the hepatopancreas. Collectively, our data provide, to our knowledge, new insight into the pivotal role of hemocyanin in modulating microbial composition in penaeid shrimp hepatopancreas via its effect on mitochondrial integrity, energy metabolism, and ROS production.
Integrating ethics, health policy and health systems in low- and middle-income countries: case studies from Malaysia and Pakistan

Hyder AA, Merritt M, Ali J, Tran NT, Subramaniam K, Akhtar T

Bull World Health Organ, 2008 Aug;86(8):606-11.
PMID: 18797618

Scientific progress is a significant basis for change in public-health policy and practice, but the field also invests in value-laden concepts and responds daily to sociopolitical, cultural and evaluative concerns. The concepts that drive much of public-health practice are shaped by the collective and individual mores that define social systems. This paper seeks to describe the ethics processes in play when public-health mechanisms are established in low- and middle-income countries, by focusing on two cases where ethics played a crucial role in producing positive institutional change in public-health policy. First, we introduce an overview of the relationship between ethics and public health; second, we provide a conceptual framework for the ethical analysis of health system events, noting how this approach might enhance the power of existing frameworks; and third, we demonstrate the interplay of these frameworks through the analysis of a programme to enhance road safety in Malaysia and an initiative to establish a national ethics committee in Pakistan. We conclude that, while ethics are gradually being integrated into public-health policy decisions in many developing health systems, ethical analysis is often implicit and undervalued. This paper highlights the need to analyse public-health decision-making from an ethical perspective.
Fulltext Exosomes drive ferroptosis by stimulating iron accumulation to inhibit bacterial infection in crustaceans

Sun Q, Yang J, Zhang M, Zhang Y, Ma H, Tran NT, et al.

J Biol Chem, 2023 Dec;299(12):105463.
PMID: 37977221 DOI: 10.1016/j.jbc.2023.105463

Ferroptosis, characterized by iron-dependent cell death, has recently emerged as a critical defense mechanism against microbial infections. The present study aims to investigate the involvement of exosomes in the induction of ferroptosis and the inhibition of bacterial infection in crustaceans. Our findings provide compelling evidence for the pivotal role of exosomes in the immune response of crustaceans, wherein they facilitate intracellular iron accumulation and activate the ferroptotic pathways. Using RNA-seq and bioinformatic analysis, we demonstrate that cytochrome P450 (CYP) can effectively trigger ferroptosis. Moreover, by conducting an analysis of exosome cargo proteins, we have identified the participation of six-transmembrane epithelial antigen of prostate 4 in the regulation of hemocyte ferroptotic sensitivity. Subsequent functional investigations unveil that six-transmembrane epithelial antigen of prostate 4 enhances cellular Fe2+ levels, thereby triggering Fenton reactions and accelerating CYP-mediated lipid peroxidation, ultimately culminating in ferroptotic cell death. Additionally, the Fe2+-dependent CYP catalyzes the conversion of arachidonic acid into 20-hydroxyeicosatetraenoic acid, which activates the peroxisome proliferator-activated receptor. Consequently, the downstream target of peroxisome proliferator-activated receptor, cluster of differentiation 36, promotes intracellular fatty acid accumulation, lipid peroxidation, and ferroptosis. These significant findings shed light on the immune defense mechanisms employed by crustaceans and provide potential strategies for combating bacterial infections in this species.
Exosome-mediated viral nucleic acid presentation in a crustacean expounds innate immunity from a novel perspective

Gong Y, Hu H, Zhao X, Wei W, Zhang M, Tran NT, et al.

J Virol, 2024 Nov 15.
PMID: 39545727 DOI: 10.1128/jvi.01519-24

As an enduring hot topic in the field of innate immunity, apoptosis is widely considered an effective approach to eliminate pathogenic microbes and plays a crucial role during host-pathogen interactions. Recently, researchers have found that the virus-containing host cells could transmit apoptotic signals to the surrounding uninfected cells during infection, but the mechanism remains unclear. Here, we found that exosomes secreted by WSSV-infected mud crab hemocytes contain viral nucleic acid wsv277, which could be transported to the recipient cells and further expressed viral protein with phosphokinase activity. Besides, by using transcriptome, proteome, ChIP-seq, and coIP techniques, the results revealed that wsv277 could activate the transcription and translation of apoptotic genes via interacting with CBF and EF-1α so as to suppress the spread of virus infection by inducing apoptosis of the surrounding cells. Therefore, for the first time, our study proved that the components of DNA virus could be encapsulated into exosomes and elucidated the mechanism of apoptotic signal transduction between cells from the perspective of exosomes.
IMPORTANCE: Our study revealed that the components of DNA virus could be packaged and transmitted through the exosomes of lower invertebrates, which strongly demonstrated the diversity of exosome-mediated viral immunity and its universality in animals. Furthermore, we elucidated the mechanism of apoptotic signal transduction between cells from the perspective of exosomes and revealed a novel strategy for the host to cope with viral infection.
Movement disorders in Indochina: Resource challenges and future solutions

Bhidayasiri R, Sringean J, Van Le T, Lim TT, Navuth C, Phoumindr A, et al.

J Neural Transm (Vienna), 2023 Jul;130(7):875-889.
PMID: 37306791 DOI: 10.1007/s00702-023-02662-1

Movement disorders are a major cause of disability worldwide and their increasing prevalence predicts a substantial future burden of care. Impactful patient care requires availability of, and accessibility to, effective medications, knowledge, and disease awareness among both medical professionals and patients, driven by skilled personnel to harness and manage resources. The highest burden of movement disorders is in low-to-middle income countries where resources are often limited and infrastructure is insufficient to meet growing demands. This article focuses on the specific challenges faced in the management and delivery of care for movement disorders in Indochina, the mainland region of Southeast Asia comprising the neighboring countries of Cambodia, Laos, Malaysia, Myanmar, Thailand, and Vietnam. The first Indochina Movement Disorders Conference was held in August 2022 in Ho Chi Minh City, Vietnam, to provide a platform to better understand the situation in the region. Future management of movement disorders in Indochina will require progressive adaptation of existing practices to reflect modern approaches to care delivery. Digital technologies offer an opportunity to strengthen these processes and address the challenges identified in the region. Ultimately, a long-term collaborative approach by regional healthcare providers is key.
Delivering patient-centered care in Parkinson's disease: Challenges and consensus from an international panel

Bhidayasiri R, Panyakaew P, Trenkwalder C, Jeon B, Hattori N, Jagota P, et al.

Parkinsonism Relat Disord, 2020 03;72:82-87.
PMID: 32146380 DOI: 10.1016/j.parkreldis.2020.02.013

An international panel of movement disorders specialists explored the views and perceptions of people with Parkinson's disease (PD) about their condition and its treatment, including the potential mismatch between the clinician's view of the patient's condition and their own view of what aspects of the disease most affect their daily lives. The initiative was focused on Asian countries, so participants comprised experts in the management of PD from key centers in Asia, with additional insight provided by European and the North American movement disorders experts. Analysis of peer-reviewed publications on patient perceptions of PD and the factors that they consider important to their wellbeing identified several contributing factors to the mismatch of views, including gaps in knowledge of PD and its treatment, an understanding of the clinical heterogeneity of PD, and the importance of a multidisciplinary approach to patient care. The faculty proposed options to bridge these gaps to ensure that PD patients receive the personalized treatment they need to achieve the best possible outcomes. It was considered essential to improve patient knowledge about PD and its treatment, as well as increasing the awareness of clinicians of PD heterogeneity in presentation and treatment response. A multidisciplinary and shared-care approach to PD was needed alongside the use of patient-centered outcome measures in clinical trials and clinical practice to better capture the patient experience and improve the delivery of individualized therapy.

Filters

Please provide feedback to Administrator ([email protected])

External Links