Publications by authors named "Banda J"

Objectives: Cyclic vomiting syndrome (CVS) remains a diagnostic challenge due to its nonspecific presentation despite consensus-based diagnostic criteria. There is a need for improved, evidence-based diagnostic criteria. We hypothesized that symptoms differ quantitatively between children with CVS versus other vomiting conditions and that current diagnostic criteria are not sufficiently sensitive for diagnosing CVS.

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  • Electronic phenotyping uses various data analysis methods, including machine learning and natural language processing, to define patient characteristics, but the current process is slow and labor-intensive.
  • Large language models could automate phenotype definition extraction but have reliability issues and potential risks of generating misleading information.
  • The study aims to create a standard evaluation set for assessing large language models' outputs and to test different prompting methods, showing promising results that still need human validation to ensure accuracy and efficiency in phenotype extraction.
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Supplementary methods of mortality surveillance are needed in settings with incomplete death registration. Local perceptions of mortality levels might be useful indicators of excess deaths. Early in the COVID-19 pandemic, we developed a survey question asking respondents to evaluate the recent frequency of funerals in their community relative to a pre-pandemic baseline.

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We investigated behavioral responses to COVID-19 in Malawi, where a first wave of the pandemic occurred between June and August 2020. Contrary to many countries on the African continent, the Government of Malawi did not impose a lockdown or a stay-at-home order in response to the initial spread of SARS-CoV-2. We hypothesized that, in the absence of such requirements to restrict social interactions, individuals would primarily seek to reduce the risk of SARS-CoV-2 transmission during contacts, rather than reduce the extent of their social contacts.

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  • Type 2 diabetes (T2D) and obesity are linked to low levels of natriuretic peptide (NP) and reduced NP guanylyl cyclase receptor-A (GCA) in muscles and fat tissue.
  • Research in mice shows that lack of ANP/GCA leads to metabolic issues and prediabetes, causing insulin resistance and poor endurance.
  • ANP/GCA is crucial for maintaining mitochondrial function and oxidative capacity in skeletal muscle, suggesting it plays a key role in the development of prediabetes.
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The study investigates cultural heritage conservation through community-based participatory research, focusing on preserving the Khulubvi Traditional Temple. It addresses challenges from religious, societal, and economic changes and the importance of integrating heritage into education. It emphasizes technology's role in maintaining sacred narratives.

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Background: Decentralized management approaches for multi-drug-resistant tuberculosis (MDR TB) have shown improved treatment outcomes in patients. However, challenges remain in the delivery of decentralized MDR TB services. Further, implementation strategies for effectively delivering the services in community health systems (CHSs) in low-resource settings have not been fully described, as most strategies are known and effective in high-income settings.

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  • Hypertension is a prevalent non-communicable disease in sub-Saharan Africa, yet there's limited knowledge about patient preferences regarding its care, prompting a study in Malawi.
  • A discrete choice experiment was conducted with 1003 adults, exploring preferences for care attributes like distance, waiting time, provider friendliness, group versus individual care, medication supply, and dispensing frequency.
  • Results indicated a strong preference for individual care over group visits, especially among people living with HIV, and favored less frequent medication dispensing, highlighting important considerations for improving hypertension care in Malawi.
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The Ayeyarwady River Basin in Myanmar is grappling with severe environmental challenges, including soil erosion and water pollution, primarily driven by unsustainable agricultural practices. This study aims to evaluate farmers' awareness of environmental policies and identify barriers to their effective implementation. In-depth interviews were conducted with 45 stakeholders, encompassing farmers, government officials, and researchers.

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Background: Multi-drug-resistant tuberculosis (MDR-TB) infections are a public health concern. Since 2017, the Ministry of Health (MoH) in Zambia, in collaboration with its partners, has been implementing decentralised MDR-TB services to address the limited community access to treatment. This study sought to explore the role of collaboration in the implementation of decentralised multi drug-resistant tuberculosis services in Zambia.

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Background: Many insect-borne pathogens appear to manipulate the odors of their hosts in ways that influence vector behaviors. In our prior work, we identified characteristic changes in volatile emissions of cultured Plasmodium falciparum parasites in vitro and during natural human falciparum malaria. In the current study, we prospectively evaluate the reproducibility of these findings in an independent cohort of children in Blantyre, Malawi.

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Background: The Ayeyarwady Basin in Myanmar, a critical economic zone, faces severe ecological degradation due to unsustainable agricultural practices. These practices pose significant threats to human health and marine biodiversity. Environmental threats persist despite the Myanmar government's efforts to implement biodiversity protection policies.

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Background: There are limited treatment options available to improve the prognosis of patients with advanced or metastatic cholangiocarcinoma particularly intrahepatic cholangiocarcinoma (iCCA). This study aimed to evaluate the efficacy and safety of combining chemotherapy plus anti-PD-1/L1 drugs compared to chemotherapy alone in advanced, unresectable, and recurrent intrahepatic cholangiocarcinoma patients.

Methods: Patients with advanced, unresectable, or recurrent iCCA who received chemotherapy combined with PD-1/PD-L1 inhibitors or chemotherapy alone were retrospectively screened and analyzed.

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This qualitative study adopts a phenomenological and symbolic interactionist approach to comprehensively explore substance abuse among street children in Lilongwe, Malawi. The research aims to uncover the complex sociocultural, economic, and environmental determinants influencing substance abuse within this marginalized cohort. Through in-depth semi-structured interviews, the study engages with street children to understand their subjective experiences, perceptions, and interpretations of substance abuse within their community context.

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Background: Depression is a major contributor to morbidity and mortality in sub-Saharan Africa. Due to low system capacity, three in four patients with depression in sub-Saharan Africa go untreated. Despite this, little attention has been paid to the cost-effectiveness of implementation strategies to scale up evidence-based depression treatment in the region.

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Acidophiles play a key role in the generation, evolution and attenuation of acid mine drainage (AMD), which is characterized by strong acidity (pH<3.5) and high metal concentrations. In this study, the seasonal changes of acidophilic communities and their roles in elemental cycling in an AMD lake (pH∼3.

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  • The diversity of clinical notes in electronic health records (EHRs) highlights the need for standardization to improve data retrieval and integration, which is where the LOINC Document Ontology (DO) comes in, specifically designed for naming clinical documents.
  • This study evaluated the LOINC DO by mapping clinical note titles from five institutions, categorizing them into three classes based on how similar they are to LOINC DO codes, and developed an automated pipeline for this mapping that doesn't require accessing note content.
  • The automated mapping system, powered by various language models, demonstrated a high accuracy of 0.90, and the research compared its results with manual mappings to assess LOINC DO's effectiveness and identify opportunities for expanding
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Objective: The aim of the Social Media Mining for Health Applications (#SMM4H) shared tasks is to take a community-driven approach to address the natural language processing and machine learning challenges inherent to utilizing social media data for health informatics. In this paper, we present the annotated corpora, a technical summary of participants' systems, and the performance results.

Methods: The eighth iteration of the #SMM4H shared tasks was hosted at the AMIA 2023 Annual Symposium and consisted of 5 tasks that represented various social media platforms (Twitter and Reddit), languages (English and Spanish), methods (binary classification, multi-class classification, extraction, and normalization), and topics (COVID-19, therapies, social anxiety disorder, and adverse drug events).

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  • * The latest iteration included five tasks across platforms like Twitter and Reddit, covering topics such as COVID-19, therapies, and drug-related events in both English and Spanish, with 29 teams participating from 18 countries.
  • * The top systems in competitions utilized advanced deep learning techniques, particularly pre-trained transformer models, and a dataset of over 61,000 social media posts will be available for future research.
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  • - The study aimed to investigate whether providing lipid-based nutrient supplements (LNS) or corn-soy blend (CSB) to 6-18-month-old children in Malawi could lower the prevalence of asymptomatic malaria, as undernutrition is linked to higher malaria morbidity and mortality.
  • - A total of 840 children were randomly assigned to receive one of three types of dietary supplements or no supplementation over 12 months, with malaria prevalence monitored via blood tests.
  • - Results showed no significant reduction in malaria prevalence among children receiving the supplements compared to the control group, with the CSB group even showing a higher prevalence ratio, indicating that the nutritional interventions did not effectively lower malaria rates.
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Pregnancy-related acute kidney injury (AKI) is a major public health problem with substantial maternal and fetal morbidity and mortality. Women with pregnancy-related AKI require immediate access to nephrology care to prevent deleterious kidney and health outcomes. Patients with pregnancy-related AKI in low-income and lower-middle-income countries experience disparities in access to comprehensive nephrology care for many reasons.

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Few studies have examined the role adverse childhood experiences (ACEs) have on specific diet patterns. This study assessed the association between ACEs and daily fruit and vegetable intake (FVI). Data were derived from the 2019 Behavioral Risk Factor Surveillance System (BRFSS) which surveys 50 states and three U.

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Diabetic keratopathy, commonly associated with a hyperactive inflammatory response, is one of the most common eye complications of diabetes. The peptide hormone fibroblast growth factor-21 (FGF-21) has been demonstrated to have anti-inflammatory and antioxidant properties. However, whether administration of recombinant human (rh) FGF-21 can potentially regulate diabetic keratopathy is still unknown.

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Objective: Biases within probabilistic electronic phenotyping algorithms are largely unexplored. In this work, we characterize differences in subgroup performance of phenotyping algorithms for Alzheimer's disease and related dementias (ADRD) in older adults.

Materials And Methods: We created an experimental framework to characterize the performance of probabilistic phenotyping algorithms under different racial distributions allowing us to identify which algorithms may have differential performance, by how much, and under what conditions.

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Access to water is critical for all forms of life. Plants primarily access water through their roots. Root traits such as branching are highly sensitive to water availability, enabling plants to adapt their root architecture to match soil moisture distribution.

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