Despite being abundantly available and nutritious, corn stover and Ceara rubber tree leaves are rarely used as livestock feed. However, these agriculture byproducts contain hard to digest nutrients to be used as feed for livestock. This study evaluates the fermentation characteristics (pH levels, ammoniacal nitrogen (N-NH3), and total volatile fatty acid (VFA) production and nutrient digestibility (dry matter digestibility_DMD, organic matter digestibility_OMD) of a silage-based diet composed of a mixture of corn stover and Ceara rubber tree leaves in Etawa crossbred goats in vitro.
View Article and Find Full Text PDFWe construct a new metapopulation model for the transmission dynamics and control of the Ebola Virus Disease (EVD) in an environment characterized by considerable migrations and travels of people. It is an extended SEIR model modified by the addition of Quarantine and Isolated compartments to account for travelers who undergo the exit screening. The model is well-fitted by using the reported cases from the neighboring countries Guinea, Liberia and Sierra Leone where the 2014-2016 Ebola outbreak simultaneously arose.
View Article and Find Full Text PDFBackground: Rare Disease research has seen tremendous advancements over the last decades, with the development of new technologies, various global collaborative efforts and improved data sharing. To maximize the impact of and to further build on these developments, there is a need for model consent clauses for rare diseases research, in order to improve data interoperability, to meet the informational needs of participants, and to ensure proper ethical and legal use of data sources and participants' overall protection.
Methods: A global Task Force was set up to develop model consent clauses specific to rare diseases research, that are comprehensive, harmonized, readily accessible, and internationally applicable, facilitating the recruitment and consent of rare disease research participants around the world.
Sudden cardiac death (SCD) accounts for 10-20% of total mortality, i.e., one in five individuals will eventually die suddenly.
View Article and Find Full Text PDFGiven the data-rich nature of modern biomedical research, there is a pressing need for a systematic, structured, computer-readable way to capture, communicate, and manage sharing rules that apply to biomedical resources. This is essential for responsible recording, versioning, communication, querying, and actioning of resource sharing plans. However, lack of a common "information model" for rules and conditions that govern the sharing of materials, methods, software, data, and knowledge creates a fundamental barrier.
View Article and Find Full Text PDFAs biobanking research in low- and middle-income countries (LMICs) continues to grow, novel legal and policy considerations have arisen. Also, while an expansive literature has developed around these issues, the views and concerns of individual researchers in these contexts have been less actively studied. These meeting notes aim to contribute to the growing literature on biobanking in LMICs by communicating a number of challenges and opportunities identified by biobank researchers themselves.
View Article and Find Full Text PDFThe volume of genomics and health data is growing rapidly, driven by sequencing for both research and clinical use. However, under current practices, the data is fragmented into many distinct datasets, and researchers must go through a separate application process for each dataset. This is time-consuming both for the researchers and the data stewards, and it reduces the velocity of research and new discoveries that could improve human health.
View Article and Find Full Text PDFThe incidence of cancer is continuing to rise and risk-tailored early diagnostic and/or primary prevention strategies are urgently required. The ideal risk-predictive test should: integrate the effects of both genetic and nongenetic factors and aim to capture these effects using an approach that is both biologically stable and technically reproducible; derive a score from easily accessible biological samples that acts as a surrogate for the organ in question; and enable the effectiveness of risk-reducing measures to be monitored. Substantial evidence has accumulated suggesting that the epigenome and, in particular, DNA methylation-based tests meet all of these requirements.
View Article and Find Full Text PDFJMIR Mhealth Uhealth
August 2017
Background: Since the launch of ResearchKit on the iOS platform in March 2015 and ResearchStack on the Android platform in June 2016, many academic and commercial institutions around the world have adapted these frameworks to develop mobile app-based research studies. These studies cover a wide variety of subject areas including melanoma, cardiomyopathy, and autism. Additionally, these app-based studies target a variety of participant populations, including children and pregnant women.
View Article and Find Full Text PDFWe are performing whole-genome sequencing of families with autism spectrum disorder (ASD) to build a resource (MSSNG) for subcategorizing the phenotypes and underlying genetic factors involved. Here we report sequencing of 5,205 samples from families with ASD, accompanied by clinical information, creating a database accessible on a cloud platform and through a controlled-access internet portal. We found an average of 73.
View Article and Find Full Text PDFBecause children are presumed to have insufficient cognitive ability to consent to participate in research, pediatric research raises particular ethical and legal issues. For children who have not reached the age of consent stipulated by law or policy, parents (or legal guardians) must authorize their participation. This paper explores the issue of whether, to satisfy the ethical and legal norms of consent for research, participants in pediatric studies who attain the age of majority after their parents or guardians enrolled them in a study should be “recontacted” to obtain their consent to remain in the study.
View Article and Find Full Text PDFThe International Genome Sample Resource (IGSR; http://www.internationalgenome.org) expands in data type and population diversity the resources from the 1000 Genomes Project.
View Article and Find Full Text PDFThe impact of next-generation sequencing (NGS) on the issue of return of results is defying clear policy guidance and creating international confusion. Limiting ourselves to the return of results revealed by NGS (including incidental findings) in adults, children, family members of deceased individuals, and population studies, we describe and contrast emerging policy positions in Europe, Canada, and the United States. Until there are clear, scientific, and professional standards and practical policy, both researchers and clinicians cannot be faulted for being either hesitant or pressured to return NGS results.
View Article and Find Full Text PDFThe secondary use of research and health data for purposes that differ from the original purpose of the collection is becoming a major trend in research, since it allows for the optimal use of already available resources, and reduces the costs of research activities. However, the consent provided at the time of the initial data collection might not have foreseen these new uses of the data. This is especially true for biobanks having collected data under a restricted or a disease-specific consent, and for data linkage, which allows researchers to combine research data with information from the medical record of participants.
View Article and Find Full Text PDFCurrently, researchers have to apply separately to individual biobanks if they want to carry out studies that use samples and data from multiple biobanks. This article analyzes the access governance arrangements of the original five biobank members of the Biobank Standardisation and Harmonisation for Research Excellence in the European Union (BioSHaRE-EU) project in Finland, Germany, the Netherlands, Norway, and the United Kingdom to identify similarities and differences in policies and procedures, and consider the potential for internal policy "harmonization." Our analysis found differences in the range of researchers and organizations eligible to access biobanks; application processes; requirements for Research Ethics Committee approval; and terms of Material Transfer Agreements relating to ownership and commercialization.
View Article and Find Full Text PDFThe past decade has witnessed the creation of major international research consortia, aiming to facilitate the sharing of data from different studies to maximize health benefits. However, combining heterogeneous data across existing studies requires addressing issues related to both data harmonization and ethical and legal interoperability. This article proposes a rigorous interoperability assessment process to assess whether different data sets are sufficiently ethically and legally interoperable to allow for a given proposed research use.
View Article and Find Full Text PDFMotivation: The data that put the 'evidence' into 'evidence-based medicine' are central to developments in public health, primary and hospital care. A fundamental challenge is to site such data in repositories that can easily be accessed under appropriate technical and governance controls which are effectively audited and are viewed as trustworthy by diverse stakeholders. This demands socio-technical solutions that may easily become enmeshed in protracted debate and controversy as they encounter the norms, values, expectations and concerns of diverse stakeholders.
View Article and Find Full Text PDFThe biggest challenge in twenty-first century data-intensive genomic science, is developing vast computer infrastructure and advanced software tools to perform comprehensive analyses of genomic data sets for biomedical research and clinical practice. Researchers are increasingly turning to cloud computing both as a solution to integrate data from genomics, systems biology and biomedical data mining and as an approach to analyze data to solve biomedical problems. Although cloud computing provides several benefits such as lower costs and greater efficiency, it also raises legal and ethical issues.
View Article and Find Full Text PDFAppl Transl Genom
June 2014
Over the past ten years, the Public Population Project in Genomics and Society ("P(3)G") has grown as a consortium. It has expanded its range of services and resources to adapt to the ever-evolving needs of the research community. From its outset - when P(3)G first tackled the building of biobanks as resources as well as data cataloguing and harmonization for data integration - to its new mission and vision, it has continually developed the tools for the conceptualization and design of population biobanks from their inception to their use to their closure.
View Article and Find Full Text PDFEmerg Themes Epidemiol
November 2013
Background: Individual-level data pooling of large population-based studies across research centres in international research projects faces many hurdles. The BioSHaRE (Biobank Standardisation and Harmonisation for Research Excellence in the European Union) project aims to address these issues by building a collaborative group of investigators and developing tools for data harmonization, database integration and federated data analyses.
Methods: Eight population-based studies in six European countries were recruited to participate in the BioSHaRE project.
Data sharing is essential for the conduct of cutting-edge research and is increasingly required by funders concerned with maximising the scientific yield from research data collections. International research consortia are encouraged to share data intra-consortia, inter-consortia and with the wider scientific community. Little is reported regarding the factors that hinder or facilitate data sharing in these different situations.
View Article and Find Full Text PDFBackground: Genotype-Driven Recruitment (GDR) is a research design that recruits research participants based on genotype rather than based on the presence or absence of a particular condition or clinical outcome. Analyses of the ethical issues of GDR studies, and the recommendations derived from these analyses, are based on GDR research designs that make use of genetic information already collected in previous studies. However, as genotyping becomes more affordable, it is expected that genotypic information will become a common part of the information stored in biobanks and held in health care records.
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