Digital Commons Network^™

Heterogeneity Of Memory T Cells In Aging, Abhinav Jain, Ines Sturmlechner, Cornelia M Weyand, Jörg J Goronzy

Faculty, Staff and Student Publications

Immune memory is a requisite and remarkable property of the immune system and is the biological foundation of the success of vaccinations in reducing morbidity from infectious diseases. Some vaccines and infections induce long-lasting protection, but immunity to other vaccines and particularly in older adults rarely persists over long time periods. Failed induction of an immune response and accelerated waning of immune memory both contribute to the immuno-compromised state of the older population. Here we review how T cell memory is influenced by age. T cell memory is maintained by a dynamic population of T cells that are heterogeneous in …

Association Of Immune-Related Adverse Events With The Outcomes Of Immune Checkpoint Inhibitors In Patients With Dmmr/Msi-H Metastatic Colorectal Cancer, Vincenzo Nasca, Francesco Barretta, Francesca Corti, Sara Lonardi, Monica Niger, Maria Elena Elez, Marwan Fakih, Priya Jayachandran, Aakash Tushar Shah, Massimiliano Salati, Elisabetta Fenocchio, Lisa Salvatore, Chiara Cremolini, Javier Ros, Margherita Ambrosini, Giacomo Mazzoli, Rossana Intini, Michael J Overman, Rosalba Miceli, Filippo Pietrantonio

Faculty, Staff and Student Publications

BACKGROUND: Immune checkpoint inhibitors (ICIs) show a tremendous activity in microsatellite instability-high (MSI-H) metastatic colorectal cancer (mCRC), but a consistent fraction of patients does not respond. Prognostic/predictive markers are needed. Despite previous investigations in other tumor types, immune-related adverse events (irAEs) have not been well evaluated in patients with MSI-H cancers treated with ICIs.

METHODS: We conducted an international cohort study at tertiary cancer centers collecting clinic-pathological features from 331 patients with MSI-H mCRC treated with ICIs. Of note, the irAEs were summarized using a 'burden score' constructed in a way that the same score value could be obtained by …

Evaluation Of Scrub Typhus Surveillance, Alwar District, Rajasthan, India, July-August 2020, Surendra M Prajapati, Kanica Kaushal, Simmi Tiwari, Ajit Shewale, Tushar Nale, Tanzin Dikid

Faculty, Staff and Student Publications

INTRODUCTION: Scrub typhus is one of the most underreported and fatal illnesses accounting for 23% of all febrile illness. Rajasthan reported cases during 2018-2019 in state reporting system but did not report any case to central Integrated Disease Surveillance Programme (IDSP) unit. We evaluated the Scrub typhus surveillance system in Alwar district, Rajasthan, with the objective of describing and evaluating the system and providing evidence-based recommendations to identify gaps.

MATERIAL AND METHODS: In cross-sectional study, we reviewed records and conducted key informant interviews at district- and block-level health facilities. Using US Centers for Disease Control guidelines, we evaluated the system …

Ocular Vestibular Evoked Myogenic Potentials In Patients With Single Sided Deafness, Alshymaa Ibrahim Hammad, Sanaa Mahran

Journal of Medicine in Scientific Research

Introduction: Clinically unilateral severe to profound sensorineural hearing loss known as single-sided deafness (SSD). It is defined by severe-to-profound hearing thresholds with a poor word recognition ability. SSD is not uncommonly encountered in otology, their symptoms is hearing loss and often associated with the vestibular system. In SSD otolithic dysfunction may be frequently misdiagnosed and majority of patients affected by cochlear and superior vestibular nerve then inferior vestibular nerve. Otolith damage may be present in patients with SSD because they sharing a membranous structure in addition they have similar receptor cell. The vestibule and cochlea may be impacted by the …

Community-Acquired Pneumonia Among Hospitalized Children: Risk Factors, Characteristics, And Outcomes, Marwa Taha, Hanaa Abdel-Wahab

Journal of Medicine in Scientific Research

Background Community-acquired pneumonia (CAP) represents one of the main causes of mortality and morbidity among under-five children worldwide. More than 75% of these fatalities are caused by severe pneumonia. Objectives to identify the potential risk factors associated with severe CAP among under-five children hospitalized with CAP. Patients and Methods This prospective observational study was conducted on children, aged 1 to 59 months, who were admitted with CAP to the Department of Pediatrics, Mataria Teaching Hospital, Egypt. Based on World Health Organization (WHO) guidelines, patients were classified into two groups; CAP and severe CAP. Data including demographic, children's history, clinical assessment, …

2023-2024 Maine Medical Center House Staff, Maine Medical Center

Graduate Medical Education

No abstract provided.

Teen Appeal, Memphis, 09.03, 2005

Documents

Issue 9.3 of the "Teen Appeal" published by the University of Memphis Journalism Department and Commercial Appeal, Memphis, Tennessee, on November 1, 2005.

Black Midwives For Black Mothers: Ameliorating Racial Disparities In The Quality Of Maternal Healthcare, Kimberly Navarro

Theses and Dissertations

In the United States, maternal mortality represents a dire health crisis with a stark racial imbalance. Black women are two and a half to three times more likely to die from pregnancy and birth-related complications than their White counterparts. Racial disparities in maternal health can be explained by variations in the quality of maternal healthcare services that women tend to receive. Racial and ethnic minority women are more likely to receive inferior quality prenatal care (PNC), which brings to question the care model of traditional PNC and its adequacy in serving the healthcare needs of Black women. Since Black women …

Childless African American Women Over 50 In The Usa: A Qualitative Descriptive Study, Robbie Roshyl Mitchell

Theses and Dissertations

In modern society, some African American women are choosing a career before accepting the traditional role of birthing a child or children at an early age and marriage is not always part of the equation. Women’s freedoms (i.e., equality, personal choice, sexuality) have increased since their early struggles for their rights as citizens and as women. Some are viewed as agents against the norm by some conservative-minded people by not having a child or children well into their adulthood, especially if they are over the age of 50. Research suggests that women without children are perceived negatively by others and …

A Systematic Review Of Movement-Oriented Mind-Body Interventions And Psychoneuroimmunological Outcomes For Psychological Stress And Trauma, Emma Wookey

Theses and Dissertations

Objective. The mind and body are inseparable and share bidirectional influences. Psychological stress and distress related to traumatic events are significant contributors to morbidity, mortality, and healthcare costs worldwide. Mind-body movement-oriented interventions have been found to benefit one's physical and mental health via down-regulation of the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic nervous system. This systematic review aimed to identify and synthesize the research on movement-oriented mind-body interventions for trauma and stress as informed by psychoneuroimmunology. The review focused on exercise, yoga, tai chi, qi gong, and dance movement therapy that target the physiological systems impacted by psychological stress/trauma. Methods. …

Voices From Below: The Politics Of Leprosy Control In Southeastern Nigeria, 1926-1960, Odinakachukwu Kingsley Eze

Electronic Theses and Dissertations

Leprosy was an endemic disease in colonial Southeastern Nigeria but became an epidemic between the 1920s and 1940s. Unlike malaria and sleeping sickness, its endemicity did not impede European penetration at the dawn of the twentieth century. However, its spread across Nigeria intensified during colonial rule, with acute prevalence in regions hitherto prone to the disease. Therefore, from the 1920s to 1960, Southeastern Nigeria became the epicenter of British policies tailored towards preventing, curing, and eradicating leprosy disease in Nigeria. Existing research has established the involvement of different actors in this course–including Christian missionaries, colonial officials, specialized agencies, and international …

Sociocultural Determinants Of Exclusive Breastfeeding And Infant Feeding Practices In Niger, Maimouna Issoufou Kapran

Electronic Theses and Dissertations

Niger is one of the countries with the lowest exclusive breastfeeding (EBF) rates in the world. The purpose of this study was to determine the barriers to EBF in Niger and to determine the types of feedings that are most commonly practiced in Niger. Participants (n=31) were mothers with children aged 0 to 24 months, recruited on-site at a healthcare facility in Niamey, the capital of Niger. They completed a 20-item questionnaire on socio-demographics, breastfeeding support and knowledge, a short food security survey, and a 24-hour diet recall. All mothers interviewed breastfed at some point, and a majority of the …

Immulina® As An Immunostimulatory Supplement: Dissolution And Pharmacodynamic Studies, Yusheng Li

Electronic Theses and Dissertations

As one of popular dietary supplements, the health benefits of Arthrospira platensis (commonly known as spirulina) have been broadly reported. Immulina is a commercially available extract of Arthrospira platensis that is enriched with bacterial lipoproteins and acts as a Toll-like receptor 2 (TLR2) agonist. However, the immunostimulatory effect of Immulina in vivo has not been well understood. In this work, we explored the nanoformulation of Immulina to improve the dissolution rate in aqueous media. Building upon a standardized cell-based assay that measures the bioactivity of Immulina as a TLR2 agonist, we developed a quantitative methodology to determine the Immulina concentration …

Experimental Studies On Developing And Characterising Vaginal Films Using Hot-Melt Extrusion Technology, Kirti Pradeep Sawant

Electronic Theses and Dissertations

Vaginal Candidiasis (VC) is one of the most common health problems in women. Indeed, one of the most convenient approaches for its treatment is an appropriate mucoadhesive vaginal film. This approach provides a local treatment modality, which inevitably decreases the dosing frequency and improves patient compliance. Clotrimazole is one of the drugs that are extensively used to treat Vaginal candidiasis and therefore, it is used in this research. The current study aimed to produce a novel extended-release film using Hot-Melt Extrusion (HME). Two different polyethylene oxide (PEO) polymer grades (PEO N10, PEO N750) were utilized to optimize the drug release …

Mechanistic Insights Into The Therapeutic Potential Of Adjunctive Thymosin Beta-4 Treatment In Pseudomonas Aeruginosa-Induced Keratitis, Yuxin Wang

Wayne State University Dissertations

Tβ4, a naturally occurring 43-amino acid protein, has been found to promote wound healing and reduce corneal inflammation. Topical Tβ4 as a therapeutic agent in conjunction with ciprofloxacin improves the outcome of Pseudomonas aeruginosa-induced keratitis by regulating the cellular functions of PMNs and MΦs and enhancing the production of SPMs. Understanding the mechanisms of Tβ4 provides valuable insights and novel therapeutic potential for resolving disease pathogenesis not only in the cornea but also in other infectious and immune-regulated inflammatory conditions.

Defining County-Level Terrestrial Rabies Freedom Using The Us National Rabies Surveillance System: Surveillance Data Analysis, Amber Kunkel, Gabriella Veytsel, Sarah C. Bonaparte, Haillie Meek, Xiaoyue Ma, Amy J. Davis, Jesse Bonwitt, Ryan M. Wallace

United States Department of Agriculture Wildlife Services: Staff Publications

Background: Rabies is a deadly zoonotic disease with nearly 100% fatality rate. In the United States, rabies virus persists in wildlife reservoirs, with occasional spillover into humans and domestic animals. The distribution of reservoir hosts in US counties plays an important role in public health decision-making, including the recommendation of lifesaving postexposure prophylaxis upon suspected rabies exposures. Furthermore, in surveillance data, it is difficult to discern whether counties have no cases reported because rabies was not present or because counties have an unreported rabies presence. These epizootics are monitored by the National Rabies Surveillance System (NRSS), to which approximately 130 …

Deriving Spatially Explicit Direct And Indirect Interaction Networks From Animal Movement Data, Anni Yang, Mark Q. Wilber, Kezia R. Manlove, Ryan S. Miller, Raoul Boughton, James Beasley, Joseph Northrup, Kurt C. Vercauteren, George Wittemyer, Kim Pepin

United States Department of Agriculture Wildlife Services: Staff Publications

Quantifying spatiotemporally explicit interactions within animal populations facilitates the understanding of social structure and its relationship with ecological processes. Data from animal tracking technologies (Global Positioning Systems [“GPS”]) can circumvent longstanding challenges in the estimation of spatiotemporally explicit interactions, but the discrete nature and coarse temporal resolution of data mean that ephemeral interactions that occur between consecutive GPS locations go undetected. Here, we developed a method to quantify individual and spatial patterns of interaction using continuous-time movement models (CTMMs) fit to GPS tracking data. We first applied CTMMs to infer the full movement trajectories at an arbitrarily fine temporal scale …

Long Term Changes In Aquaculture Influence Migration, Regional Abundance, And Distribution Of An Avian Species, Paul C. Burr, Brian S. Dorr, Jimmy L. Avery, Garrett M. Street, Bronson K. Strickland

United States Department of Agriculture Wildlife Services: Staff Publications

Agricultural development has been causing changes to the environment and the abundance and distribution of avian species. Agriculture is dynamic with changes in products occurring at large scales over relatively short time periods. The catfish aquaculture industry is one such agriculture industry that has undergone dramatic changes over the last 25 years. The double-crested cormorant (Nannopterum auritum) is a piscivorous bird that has an extensive history with the aquaculture industry of Mississippi due to its depredation of cultured catfish. A large-scale monitoring program began in 1989 to estimate the abundance and location of cormorants at every known roost in the …

Raccoon Rabies Control And Elimination In The Northeastern Usa And Southern Québec, Canada, Amy J. Davis, Marianne Gagnier, Ariane Massé, Kathleen M. Nelson, Jordona D. Kirby, Ryan Wallace, Xiaoyue Ma, Christine Fehlner-Gardiner, Richard B. Chipman, Amy Gilbert

United States Department of Agriculture Wildlife Services: Staff Publications

Rabies virus (RABV) is a deadly zoonosis that circulates in wild carnivore populations in North America. Intensive management within the USA and Canada has been conducted to control the spread of the raccoon (Procyon lotor) variant of RABV and work towards elimination. We examined RABV occurrence across the northeastern USA and southeastern Québec, Canada during 2008–2018 using a multi-method, dynamic occupancy model. Using a 10 km× 10 km grid overlaid on the landscape, we examined the probability that a grid cell was occupied with RABV and relationships with management activities (oral rabies vaccination (ORV) and trap-vaccinate-release efforts), habitat, neighbour effects …

Validation Of A Nutria (Myocastor Coypus) Environmental Dna Assay Highlights Considerations For Sampling Methodology, Anna M. Mangan, John A. Kronenberger, Ian H. Plummer

United States Department of Agriculture Wildlife Services: Staff Publications

Nutria (Myocastor coypus) is a semiaquatic rodent species that is invasive across multiple regions within the United States. Here, we evaluated a qPCR assay previously described for use in Japan for application across invasive populations in the United States. We also compared two environmental DNA sampling methodologies for this assay: field filtration of large volumes of water passed through filters versus direct sampling of small volumes of water. We validated assay specificity, generality, and sensitivity, compared assay performance between two independent laboratories, and successfully tested the assay in situ on a known wild population. The filtration method required …

Producers’ Perceptions Of Large Carnivores And Nonlethal Methods To Protect Livestock From Depredation: Findings From A Multistate Federal Initiative, Keith M. Carlisle, Hailey E. Ellis, Colorado State University, Alan D. Bright

United States Department of Agriculture Wildlife Services: Staff Publications

We examined livestock producers’ perceptions of wolves, grizzly bears, black bears, and mountain lions, as well as their experiences with using nonlethal methods to protect livestock from depredation. All producers in the study received nonlethal predator management assistance in 2020 from USDA-APHIS-Wildlife Services (“WS”) pursuant to a federally funded initiative focused on the use of nonlethal methods to protect livestock. Such methods included assistance from range riders (i.e., individuals who monitor livestock and carnivores), fladry (i.e., flags hung from rope that serve as a repellent), and other audio/visual deterrents (e.g., Foxlights). The producers did not specifically seek nonlethal assistance from …

Distribution Of Baylisascaris Procyonis In Raccoons (Procyon Lotor) In Florida, Usa, Mark W. Cunningham, Daniel P. Wolf, Katherine A. Sayler, Michael Milleson, Brittany Bankovich, Paul Schueller, Betsy S. Haley, Savannah Stura, Michael J. Yabsley

United States Department of Agriculture Wildlife Services: Staff Publications

Baylisascaris procyonis, or raccoon roundworm, is an intestinal nematode parasite of raccoons (Procyon lotor) that is important to public and wildlife health. Historically, the parasite was uncommon in the southeastern US; however, the range of B. procyonis has expanded to include Florida, US. From 2010 to 2016, we opportunistically sampled 1,030 raccoons statewide. The overall prevalence was 3.7% (95% confidence interval=2.5–4.8%) of sampled individuals, and infection intensity ranged from 1 to 48 (mean±standard deviation 9.9±4.0). We found raccoon roundworm in 9/56 (16%) counties sampled, and the percent positive ranged from 1.1% to 13.3% of specimens collected per …

An Ode To Owls: Review Of What An Owl Knows: The New Science Of The World’S Most Enigmatic Birds By Jennifer Ackerman, Alan B. Franklin

United States Department of Agriculture Wildlife Services: Staff Publications

Owls are mysterious creatures, mainly because we humans hardly ever encounter them. They are mostly nocturnal, are silent in their flight, and tend to unnerve us with their ghostly and sometimes quavering vocalizations. There have been numerous books on the natural history of owls written for nonexperts, but Jennifer Ackerman’s What an Owl Knows takes a novel tack, blending natural history and scientific discovery with a discussion of recent technological innovations. The result is a fascinating read on how scientists are beginning to better understand the lives and ecology of these secretive and rarely visible birds.

The book’s nine chapters …

Tourism‑Supported Working Lands Sustain A Growing Jaguar Population In The Colombian Llanos, Matthew Hyde, Esteban Payán, Jorge Barragan, Diana Stasiukynas, Sanmantha Rincón, William L. Kendall, Jerónimo Rodríguez, Kevin R. Crooks, Stewart W. Breck, Valerie Boron

United States Department of Agriculture Wildlife Services: Staff Publications

Understanding large carnivore demography on human-dominated lands is a priority to inform conservation strategies, yet few studies examine long-term trends. Jaguars (Panthera onca) are one such species whose population trends and survival rates remain unknown across working lands. We integrated nine years of camera trap data and tourist photos to estimate jaguar density, survival, abundance, and probability of tourist sightings on a working ranch and tourism destination in Colombia. We found that abundance increased from five individuals in 2014 to 28 in 2022, and density increased from 1.88 ± 0.87 per 100 km² in 2014 to 3.80 …

Science‐Driven Guidelines Needed To Better Manage And Conserve Black Vultures In North America, Scott A. Rush, Neil J. Buckley, Patrick A. Zollner, Bryan M. Kluever, Brooke Mcwherter, Grant C. Burcham, Zhao Ma, Marian L. Wahl, Adrián Naveda‐Rodríguez

United States Department of Agriculture Wildlife Services: Staff Publications

Black vultures (Coragyps atratus) provide invaluable ecological services through disposal of carrion and the mobilization of energy within the landscape. Human‐wildlife conflicts with these birds have increased as populations have grown and the species distribution has expanded. We identify critical science needed to understand conflict between black vultures and humans to inform effective management of this species in North America. It is imperative that diagnostic criteria supporting the identification of the impacts of black vulture on livestock be standardized and verified. Management guidelines that take these criteria into account will enable reduction in the potential for black‐vulture‐farmer conflict …

The Impact Of The Covid‑19 Pandemic On Wildlife–Aircraft Collisions At Us Airports, Levi Altringer, Sophie C. Mckee, Jason D. Kougher, Michael J. Begier, Stephanie A. Shwiff

United States Department of Agriculture Wildlife Services: Staff Publications

Exploiting unprecedented reductions in aircraft movements caused by the COVID-19 pandemic, we investigated the relationship between air traffic volume and the frequency of wildlife-aircraft collisions, or wildlife strikes, at the 50 largest airports in the United States. During the COVID- 19 months of 2020 (March–December), both air traffic volume and the absolute number of wildlife strikes were reduced. The net effect of these two movements, however, was an increase in the wildlife strike rate from May 2020–September 2020. This increase was found to be most pronounced at airports with larger relative declines in air traffic volume. We concluded that the …

Fertility Control Options For Management Of Free-Roaming Horse Populations, Ursula S. Bechert, John W. Turner Jr., Dan L. Baker, Douglas C. Eckery, Jason E. Bruemmer, Candace C. Lyman, Tulio M. Prado, Sarah B. King, Mark A. Fraker

United States Department of Agriculture Wildlife Services: Staff Publications

The management of free-roaming horses (Equus ferus) and burros (E. asinus) in the United States has been referred to as a “wicked problem” because, although there are population control options, societal values will ultimately determine what is acceptable and what is not. In the United States, free-roaming equids are managed by different types of organizations and agencies, and the landscapes that these animals inhabit vary widely in terms of access, size, topography, climate, natural resources, flora, and fauna. This landscape diversity, coupled with contemporary socioeconomic and political environments, means that adaptive management practices are needed to regulate these free-roaming populations. …

Texas Hunters' Attitudes Toward Wild Pigs (Sus Scrofa) And Their Management: An Applied Approach For Wildlife Managers, Lauren M. Jaebker, Alan D. Bright, Hailey E. Ellis, John M. Tomeček, Maureen G. Frank, Rachel L. Connally, Stephanie A. Shwiff, Keith M. Carlisle

United States Department of Agriculture Wildlife Services: Staff Publications

Choosing and executing a wild pig management strategy is often a considerable challenge for wildlife managers due to the wide variety of potential strategies and stakeholder preferences. Our research aims to understand management preferences for and tolerance of wild pigs among Texas resident hunters within 8 managerial districts of Texas. We applied the Potential for Conflict Index (PCI2) to estimate potential management preference conflicts within each district. From 24,201 questionnaires completed in 2019, we found that, on average, 74% of respondents across all management actions in each district were found to be acceptable. Resident respondents were overall intolerant of wild …

Differences In Feeder Visitation By Invasive Rose-Ringed Parakeets (Psittacula Krameri) Between Hawaiian Islands, Steven C. Hess, Jane Anderson, Eric A. Tillman, William P. Bukoski, Aaron B. Shiels, Page Klug, Shane R. Siers, Bryan M. Kluever

United States Department of Agriculture Wildlife Services: Staff Publications

Rose-ringed parakeets (Psittacula krameri; parakeets) are among the most invasive bird species worldwide. In their introduced range, populations of this species have caused negative effects on native species, natural environments, economies, and human safety. Lethal population management has been complicated by the intelligence of the birds, as they quickly alter behavior to avoid risks. Further, lethal control programs have been halted due to public opposition, as parakeets are considered to be charismatic by animal welfare advocates. The contraceptive DiazaCon has been demonstrated to effectively reduce fertility in captive parakeets. In field applications, any chemical control agents (e.g., toxicants or contraceptives) …

Commonly Collected Thermal Performance Data Can Inform Species Distributions In A Data‑Limited Invader, Natalie M. Claunch, Colin M. Goodman, Bryan M. Kluever, Narayani Barve, Robert P. Guralnick, Christina M. Romagosa

United States Department of Agriculture Wildlife Services: Staff Publications

Predicting potential distributions of species in new areas is challenging. Physiological data can improve interpretation of predicted distributions and can be used in directed distribution models. Nonnative species provide useful case studies. Panther chameleons (Furcifer pardalis) are native to Madagascar and have established populations in Florida, USA, but standard correlative distribution modeling predicts no suitable habitat for F. pardalis there. We evaluated commonly collected thermal traits– thermal performance, tolerance, and preference—of F. pardalis and the acclimatization potential of these traits during exposure to naturally-occurring environmental conditions in North Central Florida. Though we observed temperature-dependent thermal performance, chameleons maintained …