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Articles 30631 - 30660 of 255945

Full-Text Articles in Life Sciences

An Efficient And High-Throughput Method For The Evaluation Of Mitochondrial Dysfunction In Frozen Brain Samples After Traumatic Brain Injury., Hemendra J Vekaria, Olivia J. Kalimon, Paresh Prajapati, Gopal V. Velmurugan, Patrick G Sullivan Jan 2024

An Efficient And High-Throughput Method For The Evaluation Of Mitochondrial Dysfunction In Frozen Brain Samples After Traumatic Brain Injury., Hemendra J Vekaria, Olivia J. Kalimon, Paresh Prajapati, Gopal V. Velmurugan, Patrick G Sullivan

Neuroscience Faculty Publications

Mitochondrial function analysis is a well-established method used in preclinical and clinical investigations to assess pathophysiological changes in various disease states, including traumatic brain injury (TBI). Although there are multiple approaches to assess mitochondrial function, one common method involves respirometric assays utilizing either Clark-type oxygen electrodes or fluorescent-based Seahorse analysis (Agilent). However, these functional analysis methods are typically limited to the availability of freshly isolated tissue samples due to the compromise of the electron transport chain (ETC) upon storage, caused by freeze-thaw-mediated breakdown of mitochondrial membranes. In this study, we propose and refine a method for evaluating electron flux through …


Biomedical Versus Ayurvedic Traditions: The Triumph Of Indian Medicine In A Postcolonial World, Emma Jones Jan 2024

Biomedical Versus Ayurvedic Traditions: The Triumph Of Indian Medicine In A Postcolonial World, Emma Jones

BYU Asian Studies Student Journal

The importance of a full understanding of Ayurvedic medicine and other traditional practices. By recognizing how Ayurvedic medicine was disparaged during the colonial period by the Western world, explaining the significance of social determinants of health within the context of Ayurvedic medicine, and acknowledging the importance of spiritual and mental health on physical health as understood today. During the colonial period in India, changes came in many forms, not the least of which was the dismissal of a century’s old medical tradition that had contributed to the health of millions of South Asians. This health tradition is focused on prevention …


Analyzing The Belowground Biomass Of The Camp Wilkes Living Shoreline​, Ally Matheny, Wei Wu Dr., Makenzie Holifield Jan 2024

Analyzing The Belowground Biomass Of The Camp Wilkes Living Shoreline​, Ally Matheny, Wei Wu Dr., Makenzie Holifield

Science University Research Symposium (SURS)

By utilizing natural materials, living shorelines contribute to coastal resilience. While traditional concrete seawalls stabilize the land and reduce erosion, living shorelines do so too while also providing a variety of species with a place to live, maintaining or enhancing habitats, and improving the quality and flow of water. Living shorelines are made up of naturally occurring materials like plants, sand, shells and rocks. The Camp Wilkes’ Living Shoreline project entails building 150 linear feet of breakwater along Camp Wilkes’ south facing shoreline in the Back Bay of Biloxi, northwest in the city of Biloxi, Mississippi.


When Brain Meets Artificial Intelligence, Lu Zhang Jan 2024

When Brain Meets Artificial Intelligence, Lu Zhang

Computer Science and Engineering Dissertations - Archive

When we review the history of development of artificial intelligence (AI), we will find that brain science plays a pivotal role in fostering breakthroughs in AI, such as artificial neural networks (ANNs). Today, AI has made remarkable strides, particularly with the emergence of large language models (LLMs), surpassing expectations and achieving human-level performance in certain tasks. Nonetheless, an insurmountable gap remains between AI and human intelligence. It is urgent to establish a bridge between brain science and AI, promoting their mutual enhancement and collaborations. This involve establishing connections from brain science to AI (brain-inspired AI), and reversely, from AI to …


Development And Application Of Guided Mode Resonance Biosensor Platforms For Highly Sensitive And Real-Time Cell Killing Assays, Seyedmohsen Vaziri Jan 2024

Development And Application Of Guided Mode Resonance Biosensor Platforms For Highly Sensitive And Real-Time Cell Killing Assays, Seyedmohsen Vaziri

Electrical Engineering Dissertations - Archive

In this work, we developed and investigated the cancer cell killing efficacy of different instances using real-time high-sensitivity measurements facilitated by Guided-Mode Resonance (GMR) sensors. The GMR biosensor technology detects shifts in the spectral peak caused by changes in the refractive index of the surrounding medium, offering a label-free method for monitoring cellular events.

A549 cell line wild type and HER2 knockout (lung cancer cells) were exposed to different concentrations of Triton X-100 and ADC (Herceptin with αHFc-CL-DMDM). The GMR-based cell killing assay demonstrated exceptional sensitivity and specificity, with shifts in wavelength exhibiting a robust correlation with cell viability and …


The Influence Of Intracellular Photosymbiosis On The Evolution And Function Of Cnidarian Immunity, Madison A. Emery Jan 2024

The Influence Of Intracellular Photosymbiosis On The Evolution And Function Of Cnidarian Immunity, Madison A. Emery

Biology Dissertations - Archive

Intracellular photosymbiosis with Symbiodiniaceae is facilitated by cnidarian immunity as it is required for symbiont recognition and is subsequently suppressed to maintain stable intracellular symbiosis. To date, it is unclear how the cnidarian-Symbiodiniaceae symbiosis influences immune gene repertoires, immune gene expression, and disease pathology across its independent evolutions. To address these knowledge gaps, my dissertation approaches studying the cnidarian-Symbiodiniaceae symbiosis through a comparative lens to determine how it shapes immune gene evolution and immune responses in divergent symbiotic cnidarian species. In chapter two I survey eight non-symbiotic and seven symbiotic cnidarians proteomes for four families of pattern recognition receptors (PRRs) …


The Morphological Evolution Of The Inner Ear In Lacertoidea (Squamata), Cristian Hernandez Jan 2024

The Morphological Evolution Of The Inner Ear In Lacertoidea (Squamata), Cristian Hernandez

Biology Dissertations - Archive

The popularization of high-resolution computed tomography(HRCT) has produced a revolution in the field of comparative anatomy. This technology allows us to reach a level of morphological detail in our observations that has never been possible previously. Now we can perform digital dissections isolating structures of interest such as individual bones, soft tissue organs, and even generate 3D models of body cavities (endocasts) such as the braincase and inner ear. Encompassed with the progress of the HRCT, 3D geometric morphometrics have emerged as a common tool to address morphological questions in a statistical context that outperforms the traditional 2D geometric morphometrics. …


Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White Jan 2024

Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Background: In the United States (U.S.), falls are the leading cause of injury among adults 65 and over, resulting in 36 million falls yearly (Moreland et al., 2020). According to the Centers for Disease Control and Prevention (CDC, 2023), one in four older adults experiences a fall each year. Falls are the world's second most prominent cause of accidental deaths (World Health Organization [WHO], 2021). Falls are the leading cause of both fatal and non-fatal injuries among older adults (Moreland et al., 2020).

Methods: A quality improvement project that included a fall bundle was implemented in a primary clinic. A …


Malate Dehydrogenase In Parasitic Protozoans: Roles In Metabolism And Potential Therapeutic Applications, Amy L. Springer, Swati Agrawal, Eric P. Chang Jan 2024

Malate Dehydrogenase In Parasitic Protozoans: Roles In Metabolism And Potential Therapeutic Applications, Amy L. Springer, Swati Agrawal, Eric P. Chang

Biological Sciences Research

The role of malate dehydrogenase (MDH) in the metabolism of various medically significant protozoan parasites is reviewed. MDH is an NADH-dependent oxidoreductase that catalyzes interconversion between oxaloacetate and malate, provides metabolic intermediates for both catabolic and anabolic pathways, and can contribute to NAD+/NADH balance in multiple cellular compartments. MDH is present in nearly all organisms; isoforms of MDH from apicomplexans (Plasmodium falciparum, Toxoplasma gondii, Cryptosporidium spp.), trypanosomatids (Trypanosoma brucei, T. cruzi) and anaerobic protozoans (Trichomonas vaginalis, Giardia duodenalis) are presented here. Many parasitic species have complex life cycles and depend on the environment …


2024-2025 Halmos College Of Arts And Sciences Graduate Program Catalog, Nova Southeastern University Jan 2024

2024-2025 Halmos College Of Arts And Sciences Graduate Program Catalog, Nova Southeastern University

Halmos College of Arts and Sciences Course Catalogs

No abstract provided.


Spin Turns, Frank E. Fish Jan 2024

Spin Turns, Frank E. Fish

Biology Data Repository

Dataset of spin leaps of cetaceans determined by moment of inertia.


Fxr Agonism With Bile Acid Mimetic Reduces Pre-Clinical Triple-Negative Breast Cancer Burden, Sydney Joseph, Samson Eugin Simon, Margaret S. Bohm, Minjeong Kim, Madeline E. Pye, Boston W. Simmons, Dillon G. Graves, Stacey M. Thomas-Gooch, Ubaid A. Tanveer, Jeremiah R. Holt, Suriyan Ponnusamy, Laura M. Sipe, Et Al. Jan 2024

Fxr Agonism With Bile Acid Mimetic Reduces Pre-Clinical Triple-Negative Breast Cancer Burden, Sydney Joseph, Samson Eugin Simon, Margaret S. Bohm, Minjeong Kim, Madeline E. Pye, Boston W. Simmons, Dillon G. Graves, Stacey M. Thomas-Gooch, Ubaid A. Tanveer, Jeremiah R. Holt, Suriyan Ponnusamy, Laura M. Sipe, Et Al.

Biological Sciences Research

Bariatric surgery is associated with improved outcomes for several cancers, including breast cancer (BC), although the mechanisms mediating this protection are unknown. We hypothesized that elevated bile acid pools detected after bariatric surgery may be factors that contribute to improved BC outcomes. Patients with greater expression of the bile acid receptor FXR displayed improved survival in specific aggressive BC subtypes. FXR is a nuclear hormone receptor activated by primary bile acids. Therefore, we posited that activating FXR using an established FDA-approved agonist would induce anticancer effects. Using in vivo and in vitro approaches, we determined the anti-tumor potential of bile …


Why Should Early-Career Scientists Publish In Society Journals, Stephen K. Dolan, Lori D. Banks, Wenqi Yu Jan 2024

Why Should Early-Career Scientists Publish In Society Journals, Stephen K. Dolan, Lori D. Banks, Wenqi Yu

Molecular Biosciences Faculty Publications

In this editorial, written by early-career scientists, we advocate for the invaluable role of society journals in our scientific community. By choosing to support these journals as authors, peer reviewers, and as editors, we can reinforce our academic growth and benefit from their re-investment back into the scientific ecosystem. Considering the numerous clear merits of this system for future generations of microbiologists and more broadly, society, we argue that early-career researchers should publish our high-quality research in society journals to shape the future of science and scientific publishing landscape.


The Inaugural Mbio Junior Editorial Board—Lessons Learned And The Path Forward Toward Improving The Peer Review Process, Cynthia Ayefoumi Adinortey, Stephen K. Dolan, Sarah Doore, Rebeccah Lijek, Diana Priscila Pires, Wenqi Yu, Elizabeth B. Draganova, Lennart Schada Von Borzyskowski Jan 2024

The Inaugural Mbio Junior Editorial Board—Lessons Learned And The Path Forward Toward Improving The Peer Review Process, Cynthia Ayefoumi Adinortey, Stephen K. Dolan, Sarah Doore, Rebeccah Lijek, Diana Priscila Pires, Wenqi Yu, Elizabeth B. Draganova, Lennart Schada Von Borzyskowski

Molecular Biosciences Faculty Publications

The inaugural Junior Editorial Board (JEB) of mBio consisted of 64 early-career researchers active from 2022 to 2023. The goal of the JEB was to train early-career researchers in the art of peer review under the guidance of experienced editors. JEB members gained hands-on experience in peer review by participating in modules detailing the publishing process through the lenses of the journal, editor, and reviewer. Ultimately, JEB members applied this new knowledge by reviewing mBio manuscripts. Here, we summarize the background, the mission, and the achievements of the first mBio JEB. We also include possible trajectories for the future editions …


Developing Partnerships For Academic Data Science Consulting And Collaboration Units, Marianne Huebner, Laura Bond, Felesia Stukes, Joel Herndon, David J. Edwards, Gina-Maria Pomann Jan 2024

Developing Partnerships For Academic Data Science Consulting And Collaboration Units, Marianne Huebner, Laura Bond, Felesia Stukes, Joel Herndon, David J. Edwards, Gina-Maria Pomann

Biomedical Research Institute Publications and Presentations

Data science consulting and collaboration units (DSUs) are core infrastructure for research at universities. Activities span data management, study design, data analysis, data visualization, predictive modelling, preparing reports, manuscript writing and advising on statistical methods and may include an experiential or teaching component. Partnerships are needed for a thriving DSU as an active part of the larger university network. Guidance for identifying, developing and managing successful partnerships for DSUs can be summarized in six rules: (1) align with institutional strategic plans, (2) cultivate partnerships that fit your mission, (3) ensure sustainability and prepare for growth, (4) define clear expectations in …


Lhx3/4 Initiates A Cardiopharyngeal-Specific Transcriptional Program In Response To Widespread Fgf Signaling, C. J. Pickett, Hannah N. Gruner, Bradley Justin Davidson , '91 Jan 2024

Lhx3/4 Initiates A Cardiopharyngeal-Specific Transcriptional Program In Response To Widespread Fgf Signaling, C. J. Pickett, Hannah N. Gruner, Bradley Justin Davidson , '91

Biology Faculty Works

Individual signaling pathways, such as fibroblast growth factors (FGFs), can regulate a plethora of inductive events. According to current paradigms, signal-dependent transcription factors (TFs), such as FGF/MapK-activated Ets family factors, partner with lineage-determining factors to achieve regulatory specificity. However, many aspects of this model have not been rigorously investigated. One key question relates to whether lineage-determining factors dictate lineage-specific responses to inductive signals or facilitate these responses in collaboration with other inputs. We utilize the chordate model Ciona robusta to investigate mechanisms generating lineage-specific induction. Previous studies in C. robusta have shown that cardiopharyngeal progenitor cells are specified through the …


The Effects Of Secretion Regulators, Α-Synuclein And Cysteine String Protein-Α, In Thrombosis And Hemostasis, Alexis N. Smith Jan 2024

The Effects Of Secretion Regulators, Α-Synuclein And Cysteine String Protein-Α, In Thrombosis And Hemostasis, Alexis N. Smith

Theses and Dissertations--Molecular and Cellular Biochemistry

Platelets play many critical roles in the vasculature ensuring proper hemostasis and maintaining vascular integrity. They can mediate these different processes via the release of different cargo molecules from granules. Cargo release from the granules is mediated by a family of proteins called Soluble NSF Attachment Protein Receptors (SNAREs). This process is complex and is regulated by several protein-protein interactions that are not completely characterized. SNARE chaperones have been identified for the t-SNAREs such as Munc18b/STXBP2 for Syntaxin-11, but none have been identified for the VAMPs and SNAP proteins. Proteins of interest as potential chaperones for VAMPs and SNAP proteins …


Revolutionizing Our Understanding Of Specific Platelet-Pathogen Interactions, Hammodah Rawhi Hammodah Alfar Jan 2024

Revolutionizing Our Understanding Of Specific Platelet-Pathogen Interactions, Hammodah Rawhi Hammodah Alfar

Theses and Dissertations--Molecular and Cellular Biochemistry

Aside from their classical role in maintaining hemostasis, platelets are considered first-line vascular guardians that influence both the innate and adaptive immune systems. This is mediated by either direct interactions with immune cells or through the release of pre-stored cytokines and chemokines upon interacting with pathogens such as viruses. While this establishes platelets as potential players in the response to pathogens, it remains unclear what platelets can do with pathogens and how important that is to immune responses, especially against viruses. Most systemic viremias, such as HIV-1, present with mild thrombocytopenia, which is mediated through several mechanisms such as a …


Estimation Of Probability Of Habitat Use Of Roosevelt Elk On The Olympic Peninsula, Vincent Michael Gugliotti Jan 2024

Estimation Of Probability Of Habitat Use Of Roosevelt Elk On The Olympic Peninsula, Vincent Michael Gugliotti

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Estimating the probability of habitat use for a particular species is crucial to the direct management and conservation of that species. Without knowledge of habitat preferences, managers cannot effectively focus efforts on vital resources or landscape types. However, modelling probability of habitat use can be done in several ways which leaves room for variation and uncertainty in the estimates produced by each method. This study is an examination of the variation between two estimates of probability of habitat use while focusing on a particular subspecies of elk that inhabits a unique ecosystem relative to other elk subspecies. I modeled elk …


Equipment Performance Cost Optimization Using Machine Learning (A Surface Condenser Case Study), Firdaus Basheer, Mohamed Saleem Haja Nazmudeen, Fadzliwati Mohiddin, Elango Natrajan Jan 2024

Equipment Performance Cost Optimization Using Machine Learning (A Surface Condenser Case Study), Firdaus Basheer, Mohamed Saleem Haja Nazmudeen, Fadzliwati Mohiddin, Elango Natrajan

ASEAN Journal on Science and Technology for Development

Equipment performance assessment or prediction has usually been done using the conventional approach. Organization is often too busy to focus on improvement opportunities for equipment performance. Opportunities identifications are heavily reliant on expert opinion and the methods used often vary from one person to another depending on the knowledge they possess. The benefits of simplistic and realistic equipment performance prediction would significantly improve maintenance costs and hence could help to reduce the total operating cost of the asset. In this research work, a surface condenser was used as a case study. The solution proposed in this research work is to …


Sampler: Unsupervised Representations For Rapid Analysis Of Whole Slide Tissue Images., Patience Mukashyaka, Todd B Sheridan, Ali Foroughi Pour, Jeffrey Chuang Jan 2024

Sampler: Unsupervised Representations For Rapid Analysis Of Whole Slide Tissue Images., Patience Mukashyaka, Todd B Sheridan, Ali Foroughi Pour, Jeffrey Chuang

Faculty Research 2024

BACKGROUND: Deep learning has revolutionized digital pathology, allowing automatic analysis of hematoxylin and eosin (H&E) stained whole slide images (WSIs) for diverse tasks. WSIs are broken into smaller images called tiles, and a neural network encodes each tile. Many recent works use supervised attention-based models to aggregate tile-level features into a slide-level representation, which is then used for downstream analysis. Training supervised attention-based models is computationally intensive, architecture optimization of the attention module is non-trivial, and labeled data are not always available. Therefore, we developed an unsupervised and fast approach called SAMPLER to generate slide-level representations.

METHODS: Slide-level representations of …


Evaluating Superfund Effectiveness And Community Engagement: Smurfit-Stone Mill Case Study, Abigail M. Sherwood Jan 2024

Evaluating Superfund Effectiveness And Community Engagement: Smurfit-Stone Mill Case Study, Abigail M. Sherwood

Undergraduate Theses, Professional Papers, and Capstone Artifacts

The Smurfit-Stone Mill operated in Frenchtown, MT from 1957 until 2010, releasing toxic pollutants into the Clark Fork River and surrounding areas. Despite environmental protests since the 1960s, substantive action to remedy environmental damage did not occur until 2015. Stakeholders including local residents, Indigenous tribes, Missoula County, and environmental non-profits have advocated for comprehensive site characterization, a timely cleanup, and robust community engagement. While residents and visitors contend with elevated toxins in fish tissue, prompting a 100-mile fish consumption advisory near the Smurfit-Stone Mill, the Environmental Protection Agency is several years away from determining the scope of a reclamation. Community …


Swosu Research And Scholarly Activity Fair 2024, Swosu Office Of Sponsored Programs Jan 2024

Swosu Research And Scholarly Activity Fair 2024, Swosu Office Of Sponsored Programs

SWOSU Research and Scholarly Activity Fair Programs

On behalf of the members of the University Research and Scholarly Activity Committee (USRAC) and the Office of Sponsored Programs (OSP) at Southwestern Oklahoma State University (SWOSU) - Welcome to the Thirty-Second SWOSU Research and Scholarly Activity Fair! There are 61 poster presentations and 10 oral presentations involving over 100 student and faculty researchers, writers, presenters, artists, collaborators, and faculty sponsors encompassing activities from the SWOSU Departments of Biological Sciences, Chemistry & Physics, Engineering Technology, Kinesiology, Language & Literature, Mathematics, Music, Parks and Recreation Management, Pharmacy, Psychology, and Social Sciences.


Prevent Weed Seed Introduction And Spread, Department Of Primary Industries And Regional Development, Western Australia Jan 2024

Prevent Weed Seed Introduction And Spread, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Growers can implement strategies to reduce and avoid unnecessary introduction and spread of weeds. These strategies will also reduce the risk of importing herbicide resistant weeds.


Smut And Bunt Diseases Of Cereals And Their Management, Department Of Primary Industries And Regional Development, Western Australia Jan 2024

Smut And Bunt Diseases Of Cereals And Their Management, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Cereal smut and bunt diseases are caused by fungi that parasitise the host plant and produce masses of soot-like spores in the leaves, grains, or ears. The diseases can reduce yield and quality of harvested grain.


Wild Radish And Its Management In Crops, Department Of Primary Industries And Regional Development, Western Australia Jan 2024

Wild Radish And Its Management In Crops, Department Of Primary Industries And Regional Development, Western Australia

Grains and other field crops factsheets

Wild radish (Raphanus raphanistrum) is highly competitive in crops and can cause a yield loss of 10 to 90 %.

Wild radish has fibrous stems that make harvesting difficult by choking the header comb, it is an alternative host for numerous pests and diseases, and it can cause animal health problems when grazed.


Joining - Setting The Potential Of Your Ewe Flock, Department Of Primary Industries And Regional Development, Western Australia Jan 2024

Joining - Setting The Potential Of Your Ewe Flock, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

Joining is the time when the potential lambing of your flock is set, so make the most of it.

Preparation of ewes and rams for joining should start 8 weeks prior to joining for the greatest benefit.

Key tactical decisions around ewe and ram health and nutrition should be made prior to joining. This should ideally start 8 weeks before joining as the impact of nutrition, shearing and teasing take time to influence joining success.

The majority of the ewes in Western Australia are seasonal breeders. The spontaneous cycling in Merinos and breeds such as Poll Dorset are least affected …


2024 Wheelchair Compendium Of Physical Activities: An Update Of Activity Codes And Energy Expenditure Values, Scott A. Conger, Stephen D. Herrmann, Erik A. Willis, Tom E. Nightingale, Joseph R. Sherman, Barbara E. Ainsworth Jan 2024

2024 Wheelchair Compendium Of Physical Activities: An Update Of Activity Codes And Energy Expenditure Values, Scott A. Conger, Stephen D. Herrmann, Erik A. Willis, Tom E. Nightingale, Joseph R. Sherman, Barbara E. Ainsworth

Kinesiology Faculty Publications and Presentations

Purpose: This paper presents an update of the 2011 Wheelchair Compendium of Physical Activities designed for wheelchair users and is referred to as the 2024 Wheelchair Compendium. The Wheelchair Compendium aims to curate existing knowledge of the energy expenditure for wheelchair physical activities (PAs).

Methods: A systematic review of the published energy expenditure of PA for wheelchair users was completed between 2011 and May 2023. We added these data to the 2011 Wheelchair Compendium data that was compiled previously in a systematic review through 2011.

Results: A total of 47 studies were included, and 124 different wheelchair PA reported energy …


Chemical Control Of Turfgrass Diseases 2024, Bruce B. Clarke, Paul Vincelli, Paul Koch, Ming-Yi Chou Jan 2024

Chemical Control Of Turfgrass Diseases 2024, Bruce B. Clarke, Paul Vincelli, Paul Koch, Ming-Yi Chou

Agriculture and Natural Resources Publications

Turfgrasses under intensive management are often subject to outbreaks of infectious diseases. Diseases usually are most damaging when weather or cultural conditions favor the disease-causing agent but not plant growth and vigor. Cultural conditions that predispose turfgrass to diseases include close mowing, inadequate or excessive fertility, light or frequent irrigation, excessive thatch, poor drainage, and shade. Good turf management practices often greatly reduce the impact of disease by promoting healthy plants that are better able to resist infections. Even under good management, however, diseases sometimes cause excessive damage to highly managed turfgrasses. The proper use of fungicides in these instances, …


Dimeric Immunoglobulin A As A Novel Diagnostic Marker Of Measles Infection, Khayriyyah Mohd Hanafiah, Joanne Hiebert, Vanessa Zubach, Alberto Severini, David A. Anderson, Heidi E. Drummer Jan 2024

Dimeric Immunoglobulin A As A Novel Diagnostic Marker Of Measles Infection, Khayriyyah Mohd Hanafiah, Joanne Hiebert, Vanessa Zubach, Alberto Severini, David A. Anderson, Heidi E. Drummer

Biology Faculty/Staff Publications

Despite tremendous measles incidence reduction through universal vaccination, elimination efforts rely on improved surveillance. The detection of anti-measles immunoglobulin M (IgM) by enzyme-linked immunosorbent assay is the standard laboratory diagnostic method. However, true infection is rare, and seroconversion following measles, mumps, and rubella vaccination also generates IgM, which results in low positive predictive values of assays in elimination settings, thus necessitating confirmatory testing. Improved diagnostic tests for measles infection are a World Health Organization research priority. We investigated whether dimeric immunoglobulin A (dIgA), the predominant antibody produced in mucosal immunity, may be a marker of recent or acute measles infection. …