276 results match your criteria: "South African National Bioinformatics Institute[Affiliation]"

Microbial research generates vast and complex data from diverse omics technologies, necessitating innovative analytical solutions. microGalaxy (Galaxy for Microbiology) addresses these needs with a user-friendly platform that integrates >220 tool suites and >65 curated workflows for microbial analyses, including taxonomic profiling, assembly, annotation, and functional analysis. Hosted on the main EU Galaxy server (microgalaxy.

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We report the outcomes of the second session of the free online open-access workshop "Computational Applications in Secondary Metabolite Discovery (CAiSMD) 2022" that took place from 09 to 11 March 2022. The first session was held from 08 to 10 March 2021 and drew the attention of many early career scientists from academia and industry. The 23 invited speakers of this year's workshop also came from academia and industry and 222 registered participants from five continents (Africa, Asia, Europe, South, and North America) took part in the workshop.

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The PHA4GE Microbial Data-Sharing Accord: establishing baseline consensus microbial data-sharing norms to facilitate cross-sectoral collaboration.

BMJ Glob Health

October 2024

South African Medical Research Council Bioinformatics Unit, South African National Bioinformatics Institute, University of the Western Cape, Bellville, South Africa

Article Synopsis
  • Microbial data sharing is crucial for effective public health research and pathogen analysis, evidenced by its importance during the SARS-CoV-2 pandemic.
  • There is currently a lack of universal guidelines for the secondary use of microbial data, despite general data-sharing principles existing.
  • The proposed PHA4GE Microbial Data-Sharing Accord outlines seven key principles to encourage responsible sharing and use of microbial data, aiming to enhance trust and prevent misuse in research.
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The availability of clinical trial data, advocacy, and increased funding has facilitated the implementation of pharmacometrics in Africa, resulting in the establishment of additional training programs for pharmacometricians. This study conducted a systematic review to evaluate the progress made from the implementation of pharmacometrics in clinical drug development and its adoption into drug approval by regulatory authorities in Africa. We performed a comprehensive literature search using major databases such as PubMed and Google Scholar.

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Artificial Intelligence is transforming drug discovery, particularly in the hit identification phase of therapeutic compounds. One tool that has been instrumental in this transformation is Quantitative Structure-Activity Relationship (QSAR) analysis. This computer-aided drug design tool uses machine learning to predict the biological activity of new compounds based on the numerical representation of chemical structures against various biological targets.

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  • The NHS England has mandated the use of an acute kidney injury (AKI) detection algorithm in laboratories, and a study evaluated its implementation and the uniformity of alerts sent to the UK Renal Registry (UKRR).
  • Researchers developed a code to simulate the AKI detection algorithm on a massive dataset from 29 labs, finding high agreement levels in most laboratories but significant variability in individual lab results, especially in those with higher serum creatinine levels.
  • The results indicate that while UKRR alerts serve as a valid method for monitoring AKI, issues like inconsistent laboratory practices and incomplete use of the algorithm need addressing, with recommendations for auditing labs that show low agreement rates.
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  • Multimorbidity means having two or more long-lasting health problems at the same time, and it's becoming a big issue for health care around the world.
  • A group of 60 researchers from 10 African countries worked together to figure out if the idea of multimorbidity is useful in Africa and how it can be adapted to fit local needs.
  • During their workshop, they talked about different perspectives on multimorbidity and came up with new ideas that focus on what people really need and the impact it has on their lives and health systems.
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  • There is currently no fast and accurate test for diagnosing tuberculous meningitis (TBM), which often delays treatment; this study aimed to create a better diagnostic tool by using a variety of data from past studies across different populations.* -
  • The research involved 3,761 participants from 14 studies, identifying key predictive factors like cerebrospinal fluid glucose and HIV status, and analyzed the data using techniques like logistic regression and random forest regression.* -
  • The resulting mobile app for TBM diagnosis shows promising accuracy, with further validation needed to confirm its effectiveness in diverse clinical settings.*
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Background: HIV-1 produces Tat, a crucial protein for transcription, viral replication, and CNS neurotoxicity. Tat interacts with TAR, enhancing HIV reverse transcription. Subtype C Tat variants (C31S, R57S, Q63E) are associated with reduced transactivation and neurovirulence compared to subtype B.

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Kidney function in healthcare clients in Khayelitsha, South Africa: Routine laboratory testing and results reflect distinct healthcare experiences by age for healthcare clients with and without HIV.

PLOS Glob Public Health

May 2024

Institute of Infectious Diseases and Molecular Medicine, Wellcome Centre for Infectious Disease Research in Africa, University of Cape Town, Cape Town, South Africa.

In South Africa, PLHIV are eligible for free ART and kidney function screening. Serum creatinine (SCr) laboratory test data from the National Health Laboratory Service are collated at the Provincial Health Data Centre and linked with other routine health data. We analysed SCr and estimated glomerular filtration rate (eGFR) results for PLHIV and HIV-negative healthcare clients aged 18-80 years accessing healthcare in Khayelitsha, South Africa and comorbidity profiles at SCr and eGFR testing.

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Antimicrobial resistance (AMR) is a growing problem in African cattle production systems, posing a threat to human and animal health and the associated economic value chain. However, there is a poor understanding of the resistomes in small-holder cattle breeds in East African countries. This study aims to examine the distribution of antimicrobial resistance genes (ARGs) in Kenya, Tanzania, and Uganda cattle using a metagenomics approach.

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Background: The conduct of research is critical to advancing human health. However, there are issues of ethical concern specific to the design and conduct of research in conflict settings. Conflict-affected countries often lack strong platform to support technical guidance and monitoring of research ethics, which may lead to the use of divergent ethical standards some of which are poorly elaborated and loosely enforced.

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Molecular modeling and simulation studies of SELEX-derived high-affinity DNA aptamers to the Ebola virus nucleoprotein.

J Biomol Struct Dyn

January 2024

South African Medical Research Council Bioinformatics Unit, South African National Bioinformatics Institute (SANBI), University of the Western Cape, Bellville, South Africa Cape Town, South Africa.

Ebola viral disease (EVD) is a highly infectious and potentially fatal illness with a case fatality rate ranging from 25% to 90%. To effectively control its spread, there is a need for rapid, reliable and lowcost point-of-care (P OC) diagnostic tests. While various EVD diagnostic tests exist, few are P OC tests, and many are not cost-effective.

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Article Synopsis
  • * Drug discovery and development are essential but often complex, costly, and lengthy processes, prompting the pharmaceutical industry to seek innovative approaches to streamline these efforts.
  • * Computer-aided drug discovery (CADD) is a promising technology that offers faster, cheaper, and more efficient routes to identify and develop new drug candidates, with successful case studies demonstrating its potential in tackling AMR.
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Type 2 diabetes mellitus (T2DM) is managed with combined lifestyle modifications and antidiabetic drugs, but people on treatment often fail to reach glycaemic control. Adherence is important for achieving optimal glycaemic control, and management of diabetes with drugs is a lifelong process, so understanding adherence through analysis of longitudinal medications data is important. Using retrospective routine health data and metformin dispensing records as a proxy for medication use, we describe longitudinal persistence and adherence to oral diabetes medication in a virtual cohort of 10541 people with diabetes (PLWD) in Khayelitsha subdistrict, Cape Town.

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Kidney renal clear cell carcinoma is the most prevalent subtype of renal cell carcinoma encompassing a heterogeneous group of malignancies. Accurate subtype identification and an understanding of the variables influencing prognosis are critical for personalized treatment, but currently limited. To facilitate the sub-classification of KIRC patients and improve prognosis, this study implemented a normalization method to track cancer progression by detecting the accumulation of genetic changes that occur throughout the multi-stage of cancer development.

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Early identification of genetic risk factors for complex diseases can enable timely interventions and prevent serious outcomes, including mortality. While the genetics underlying many Mendelian diseases have been elucidated, it is harder to predict risk for complex diseases arising from the combined effects of many genetic variants with smaller individual effects on disease aetiology. Polygenic risk scores (PRS), which combine multiple contributing variants to predict disease risk, have the potential to influence the implementation for precision medicine.

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A lack of diversity in genomics for health continues to hinder equitable leadership and access to precision medicine approaches for underrepresented populations. To avoid perpetuating biases within the genomics workforce and genomic data collection practices, equity, diversity, and inclusion (EDI) must be addressed. This paper documents the journey taken by the Global Alliance for Genomics and Health (a genomics-based standard-setting and policy-framing organization) to create a more equitable, diverse, and inclusive environment for its standards and members.

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Evidence-based healthcare relies on health data from diverse sources to inform decision-making across different domains, including disease prevention, aetiology, diagnostics, therapeutics and prognosis. Increasing volumes of highly granular data provide opportunities to leverage the evidence base, with growing recognition that health data are highly sensitive and onward research use may create privacy issues for individuals providing data. Concerns are heightened for data without explicit informed consent for secondary research use.

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Introduction: coronavirus disease 2019 (SARS-CoV-2), a global pandemic, popularised the term "lockdown" due to its rapid spread around the world. "Lockdown" was used as an emergency measure to temporarily prevent people from entering or leaving their communities in an effort to reduce the spread of the virus. The effects of the "lockdown" measures on the management of chronic medical conditions in African populations have been inconsistent.

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Next-generation sequencing (NGS) of genomic data has established its fundamental value in public health surveillance, research and development, and precision medicine. In Africa, severe shortages of competent experts in genomics and bioinformatics, few opportunities for research, and inadequate genomic infrastructure have had a knock-on effect on the use of NGS technologies for research and public health practice. Several reasons-ranging from poor funding, inadequate infrastructure for training and practice, to brain drain-might partly account for the scarcity of genomics and bioinformatics expertise in the region.

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Developing Clinical Phenotype Data Collection Standards for Research in Africa.

Glob Health Epidemiol Genom

September 2023

Computational Biology Division, Department of Integrative Biomedical Sciences, IDM, University of Cape Town, Cape Town, South Africa.

Modern biomedical research is characterised by its high-throughput and interdisciplinary nature. Multiproject and consortium-based collaborations requiring meaningful analysis of multiple heterogeneous phenotypic datasets have become the norm; however, such analysis remains a challenge in many regions across the world. An increasing number of data harmonisation efforts are being undertaken by multistudy collaborations through either prospective standardised phenotype data collection or retrospective phenotype harmonisation.

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Record linkage for routinely collected health data in an African health information exchange.

Int J Popul Data Sci

September 2023

Wellcome Centre for Infectious Disease Research in Africa, Faculty of Health Sciences, University of Cape Town, South Africa.

Introduction: The Patient Master Index (PMI) plays an important role in management of patient information and epidemiological research, and the availability of unique patient identifiers improves the accuracy when linking patient records across disparate datasets. In our environment, however, a unique identifier is seldom present in all datasets containing patient information. Quasi identifiers are used to attempt to link patient records but sometimes present higher risk of over-linking.

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