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Immunology and Infectious Disease Commons™
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Articles 31 - 60 of 193
Full-Text Articles in Immunology and Infectious Disease
Editorial: Tick Saliva: Secret To Blood Feeding Success, Daniel E. Sonenshine, Patricia A. Nuttall, Sukanya Narasimhan
Editorial: Tick Saliva: Secret To Blood Feeding Success, Daniel E. Sonenshine, Patricia A. Nuttall, Sukanya Narasimhan
Biological Sciences Faculty Publications
No abstract provided.
Rickettsial Pathogen Perturbs Tick Circadian Gene To Infect The Vertebrate Host, Supreet Khanal, Vikas Taank, John F. Anderson, Hameeda Sultana, Girish Neelakanta
Rickettsial Pathogen Perturbs Tick Circadian Gene To Infect The Vertebrate Host, Supreet Khanal, Vikas Taank, John F. Anderson, Hameeda Sultana, Girish Neelakanta
Biological Sciences Faculty Publications
Ixodes scapularis is a medically important tick that transmits several microbes to humans, including rickettsial pathogen Anaplasma phagocytophilum. In nature, these ticks encounter several abiotic factors including changes in temperature, humidity, and light. Many organisms use endogenously generated circadian pathways to encounter abiotic factors. In this study, we provide evidence for the first time to show that A. phagocytophilum modulates the arthropod circadian gene for its transmission to the vertebrate host. We noted a circadian oscillation in the expression of arthropod clock, bmal1, period and timeless genes when ticks or tick cells were exposed to alternate 12 h …
Bone Morphogenetic Proteins Shape TReg Cells, Piotr Kraj
Bone Morphogenetic Proteins Shape TReg Cells, Piotr Kraj
Biological Sciences Faculty Publications
The transforming growth factor-β (TGF-β) family includes cytokines controlling cell behavior, differentiation and homeostasis of various tissues including components of the immune system. Despite well recognized importance of TGF-β in controlling T cell functions, the immunomodulatory roles of many other members of the TGF-β cytokine family, especially bone morphogenetic proteins (BMPs), start to emerge. Bone Morphogenic Protein Receptor 1α (BMPR1α) is upregulated by activated effector and Foxp3+ regulatory CD4+ T cells (Treg cells) and modulates functions of both of these cell types. BMPR1α inhibits generation of proinflammatory Th17 cells and sustains peripheral Treg cells. This finding underscores the importance of …
The Effect Of Age On Neurological Inflammation To Acute Sleep Fragmentation In Mice, Molly Taylor
The Effect Of Age On Neurological Inflammation To Acute Sleep Fragmentation In Mice, Molly Taylor
Mahurin Honors College Capstone Experience/Thesis Projects
Obstructive sleep apnea is identified by recurring events of airway collapse during sleep, intermittent hypoxia, and perturbations in sleep continuity, known as sleep fragmentation. There is evidence to suggest that elderly patients are more at risk of developing obstructive sleep apnea. The purpose of this study was to assess whether age affects neurological inflammatory responses to acute sleep fragmentation. This assessment was made by subjecting young (4-5 months old) and old (10-11 months old) male C57BL/6j mice to automated sleep fragmentation, as well as having mice in both age categories as a control with no sleep fragmentation, for twenty-four hours. …
Focus Stacking Images Of Morphological Character States For Differentiating The Adults Of Ixodes Affinis And Ixodes Scapularis (Acari: Ixodidae) In Areas Of Sympatry, Robyn M. Nadolny, Marcée Toliver, Holly D. Gaff, John G. Snodgrass, Richard G. Robbins
Focus Stacking Images Of Morphological Character States For Differentiating The Adults Of Ixodes Affinis And Ixodes Scapularis (Acari: Ixodidae) In Areas Of Sympatry, Robyn M. Nadolny, Marcée Toliver, Holly D. Gaff, John G. Snodgrass, Richard G. Robbins
Biological Sciences Faculty Publications
Adult females and males of Ixodes affinis and Ixodes scapularis are illustrated by focus stacking image photography, and morphological character states are described that reliably differentiate the two species. In conjunction with other environmental cues, such as the questing phenology of adults, these characteristics will enable the rapid identification of adults of either sex along the southern Coastal Plain of the United States, where these species are sympatric.
Tick Ecdysteroid Hormone, Global Microbiota/Rickettsia Signaling In The Ovary Versus Carcass During Vitellogenesis In Part-Fed (Virgin) American Dog Ticks, Dermacentor Variabilis, Loganathan Ponnusamy, Haley Sutton, Robert D. Mitchell Iii, Daniel E. Sonenshine, Charles S. Apperson, Richard Michael Roe
Tick Ecdysteroid Hormone, Global Microbiota/Rickettsia Signaling In The Ovary Versus Carcass During Vitellogenesis In Part-Fed (Virgin) American Dog Ticks, Dermacentor Variabilis, Loganathan Ponnusamy, Haley Sutton, Robert D. Mitchell Iii, Daniel E. Sonenshine, Charles S. Apperson, Richard Michael Roe
Biological Sciences Faculty Publications
The transovarial transmission of tick-borne bacterial pathogens is an important mechanism for their maintenance in natural populations and transmission, causing disease in humans and animals. The mechanism for this transmission and the possible role of tick hormones facilitating this process have never been studied. Injections of physiological levels of the tick hormone, 20-hydroxyecdysone (20E), into part-fed (virgin) adult females of the American dog tick, Dermacentor variabilis, attached to the host caused a reduction in density of Rickettsia montanensis in the carcass and an increase in the ovaries compared to buffer-injected controls. This injection initiates yolk protein synthesis and uptake …
Double Anus In An Ixodes Scapularis Nymph, A Medically Important Tick Vector, Vikas Taank, Frank A. Lattanzio, Hameeda Sultana, Girish Neelakanta
Double Anus In An Ixodes Scapularis Nymph, A Medically Important Tick Vector, Vikas Taank, Frank A. Lattanzio, Hameeda Sultana, Girish Neelakanta
Biological Sciences Faculty Publications
Background: Ixodes scapularis ticks are medically important arthropod vectors that transmit several pathogens to humans. The observations of morphological abnormalities, including nanism, missing leg, extra leg, and gynandromorphism, have been reported in these ticks. In this study, we report the presence of two anuses in a laboratory-reared I. scapularis nymph.
Results: Larval ticks were allowed to feed on mice and to molt to nymphs. Two anuses were observed in one of the freshly molted nymphs. Stereo and scanning electron microscopy confirmed the presence of two anuses in one nymph within a single anal groove.
Conclusions: This report confirms the rare …
Trends And Opportunities In Tick-Borne Disease Geography, Catherine A. Lippi, Sadie J. Ryan, Alexis L. White, Holly D. Gaff, Colin J. Carlson
Trends And Opportunities In Tick-Borne Disease Geography, Catherine A. Lippi, Sadie J. Ryan, Alexis L. White, Holly D. Gaff, Colin J. Carlson
Biological Sciences Faculty Publications
Tick-borne diseases are a growing problem in many parts of the world, and their surveillance and control touch on challenging issues in medical entomology, agricultural health, veterinary medicine, and biosecurity. Spatial approaches can be used to synthesize the data generated by integrative One Health surveillance systems, and help stakeholders, managers, and medical geographers understand the current and future distribution of risk. Here, we performed a systematic review of over 8,000 studies and identified a total of 303 scientific publications that map tick-borne diseases using data on vectors, pathogens, and hosts (including wildlife, livestock, and human cases). We find that the …
Tick Extracellular Vesicles Enable Arthropod Feeding And Promote Distinct Outcomes Of Bacterial Infection, Adela S. Oliva Chávez, Xiaowei Wang, Liron Marnin, Nathan K. Archer, Holly L. Hammond, Erin E. Mcclure Carroll, Dana K. Shaw, Brenden G. Tully, Amanda D. Buskirk, Shelby L. Ford, L. Rainer Butler, Preeti Shahi, Kateryna Morozova, Cristina C. Clement, Lauren Lawres, Anya J. O'Neal, Choukri Ben Mamoun, Kathleen L. Mason, Brandi E. Hobbs, Glen A. Scoles, Eileen M. Barry, Daniel E. Sonenshine, Utpal Pal, Jesus G. Valenzuela, Marcelo B. Sztein, Marcela F. Pasetti, Michael L. Levin, Michail Kotsyfakis, Steven M. Jay, Jason F. Huntley, Lloyd S. Miller, Laura Santambrogio, Joao H.F. Pedra
Tick Extracellular Vesicles Enable Arthropod Feeding And Promote Distinct Outcomes Of Bacterial Infection, Adela S. Oliva Chávez, Xiaowei Wang, Liron Marnin, Nathan K. Archer, Holly L. Hammond, Erin E. Mcclure Carroll, Dana K. Shaw, Brenden G. Tully, Amanda D. Buskirk, Shelby L. Ford, L. Rainer Butler, Preeti Shahi, Kateryna Morozova, Cristina C. Clement, Lauren Lawres, Anya J. O'Neal, Choukri Ben Mamoun, Kathleen L. Mason, Brandi E. Hobbs, Glen A. Scoles, Eileen M. Barry, Daniel E. Sonenshine, Utpal Pal, Jesus G. Valenzuela, Marcelo B. Sztein, Marcela F. Pasetti, Michael L. Levin, Michail Kotsyfakis, Steven M. Jay, Jason F. Huntley, Lloyd S. Miller, Laura Santambrogio, Joao H.F. Pedra
Biological Sciences Faculty Publications
Extracellular vesicles are thought to facilitate pathogen transmission from arthropods to humans and other animals. Here, we reveal that pathogen spreading from arthropods to the mammalian host is multifaceted. Extracellular vesicles from Ixodes scapularis enable tick feeding and promote infection of the mildly virulent rickettsial agent Anaplasma phagocytophilum through the SNARE proteins Vamp33 and Synaptobrevin 2 and dendritic epidermal T cells. However, extracellular vesicles from the tick Dermacentor andersoni mitigate microbial spreading caused by the lethal pathogen Francisella tularensis. Collectively, we establish that tick extracellular vesicles foster distinct outcomes of bacterial infection and assist in vector feeding by acting …
Spatio-Temporal Modelling Of Tick Life-Stage Count Data With Spatially Varying Coefficients, Thabo Lephoto, Henry Mwambi, Oliver Bodhlyera, Holly Gaff
Spatio-Temporal Modelling Of Tick Life-Stage Count Data With Spatially Varying Coefficients, Thabo Lephoto, Henry Mwambi, Oliver Bodhlyera, Holly Gaff
Biological Sciences Faculty Publications
There is a vast amount of geo-referenced data in many fields of study including ecological studies. Geo-referencing is usually by point referencing; that is, latitudes and longitudes or by areal referencing, which includes districts, counties, states, provinces and other administrative units. The availability of large geo-referenced datasets for modelling has necessitated the development and application of spatial statistical methods. However, spatial varying coefficients models exploring the abundance of tick counts remain limited. In this study we used data that was collected and prepared by researchers in the Department of Biological Sciences from the Old Dominion University, Virginia, USA. We modelled …
Antibodies Against Egf-Like Domains In Ixodes Scapularis Bm86 Orthologs Impact Tick Feeding And Survival Of Borrelia Burgdorferi, Juraj Koči, Sandhya Bista, Payal Chirania, Xiuli Yang, Chrysoula Kitsou, Vipin Singh Rana, Ozlem Buyuktanir Yas, Daniel E. Sonenshine, Utpal Pal
Antibodies Against Egf-Like Domains In Ixodes Scapularis Bm86 Orthologs Impact Tick Feeding And Survival Of Borrelia Burgdorferi, Juraj Koči, Sandhya Bista, Payal Chirania, Xiuli Yang, Chrysoula Kitsou, Vipin Singh Rana, Ozlem Buyuktanir Yas, Daniel E. Sonenshine, Utpal Pal
Biological Sciences Faculty Publications
Ixodes scapularis ticks transmit multiple pathogens, including Borrelia burgdorferi sensu stricto, and encode many proteins harboring epidermal growth factor (EGF)-like domains. We show that I. scapularis produces multiple orthologs for Bm86, a widely studied tick gut protein considered as a target of an anti-tick vaccine, herein termed as Is86. We show that Is86 antigens feature at least three identifiable regions harboring EGF-like domains (termed as EGF-1, EGF-2, and EGF-3) and are differentially upregulated during B. burgdorferi infection. Although the RNA interference-mediated knockdown of Is86 genes did not show any influences on tick engorgement or B. burgdorferi sensu stricto persistence, the …
Complete Genome Sequence Of Rickettsia Parkeri Strain Black Gap, Sandor E. Karpathy, Christopher D. Paddock, Stephanie L. Grizzard, Dhwani Batra, Lori A. Rowe, David T. Gauthier
Complete Genome Sequence Of Rickettsia Parkeri Strain Black Gap, Sandor E. Karpathy, Christopher D. Paddock, Stephanie L. Grizzard, Dhwani Batra, Lori A. Rowe, David T. Gauthier
Biological Sciences Faculty Publications
A unique genotype of Rickettsia parkeri, designated R. parkeri strain Black Gap, has thus far been associated exclusively with the North American tick, Dermacentor parumapertus. The compete genome consists of a single circular chromosome with 1,329,522 bp and a G+C content of 32.5%.
Carbapenemase Screening In An Irish Tertiary Referral Hospital: Best Practice, Or Can We Do Better?, Sinéad Fahy, J. A. O'Connor, D. O'Brien, L. Fitzpatrick, M. O'Connor, J. Crowley, M. Bernard, Roy D. Sleator, Brigid Lucey
Carbapenemase Screening In An Irish Tertiary Referral Hospital: Best Practice, Or Can We Do Better?, Sinéad Fahy, J. A. O'Connor, D. O'Brien, L. Fitzpatrick, M. O'Connor, J. Crowley, M. Bernard, Roy D. Sleator, Brigid Lucey
Department of Biological Sciences Publications
Initially, United States Centre of Disease Control (CDC) recommended culture-based CPE screens; using broth enrichment in tryptone soy broth (TSB), followed by culture onto MacConkey agar with a carbapenem disc. However, this protocol is both time consuming (approx. 48hrs) and labour intensive, making it impractical for routine screening, particularly in a busy hospital laboratory [10]. Some improvements have been observed using commercially available culture plates, particularly in terms of decreased turnaround times (approx. 24hrs) and increased sensitivity/specificity for CPE producers; mSuperCarba (CHROMagar) media, for example has shown an increased sensitivity rate of 83% compared to 69% for MacConkey culture with …
Field Evaluation Of Recombinant Antigen Elisa In Detecting Zoonotic Schistosome Infection Among Water Buffaloes In Endemic Municipalities In The Philippines, Jose Ma. M. Angeles, Yasuyuki Goto, Masahi Kirinoki, Elena A. Villacorte, Kharleezelle J. Moendeg, Pilarita T. Rivera, Yuichi Chigusa, Shin-Ichiro Kawazu
Field Evaluation Of Recombinant Antigen Elisa In Detecting Zoonotic Schistosome Infection Among Water Buffaloes In Endemic Municipalities In The Philippines, Jose Ma. M. Angeles, Yasuyuki Goto, Masahi Kirinoki, Elena A. Villacorte, Kharleezelle J. Moendeg, Pilarita T. Rivera, Yuichi Chigusa, Shin-Ichiro Kawazu
Biology Faculty Publications
In this study, we investigated the use of recombinant antigens thioredoxin peroxidase-1 (rSjTPx-1) and tandem repeat rSj1TR in evaluating the antibody positivity rates of Schistosoma japonicum infection among water buffaloes from four endemic areas in the Philippines, two municipalities with high endemicity (Calatrava, Negros Occidental and Catarman, Northern Samar) and two municipalities nearing elimination with no cases of human schistosomiasis (Talibon and Trinidad, Bohol). These recombinant antigen ELISA assays were compared with other diagnostic tests including SEA-ELISA, FECT, and fecal-based PCR. Results showed that rSj1TR-ELISA has the highest agreement with PCR in all study areas. Furthermore, significant positivity rates among …
Endothelial Cell Contributions To Covid-19, Alexandra E. Oxford, Fabio Halla, Evan B. Robertson, Brad E. Morrison
Endothelial Cell Contributions To Covid-19, Alexandra E. Oxford, Fabio Halla, Evan B. Robertson, Brad E. Morrison
Biology Faculty Publications and Presentations
Understanding of the clinical, histological and molecular features of the novel coronavirus 2019 (Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)) has remained elusive. Coronavirus disease 2019 (COVID-19) caused by this virus has unusual clinical presentation with regard to other related coronaviruses. Recent reports suggest that SARS-CoV-2, unlike other related viruses, infects and replicates within endothelial cells, which may explain a significant portion of the observed clinical pathology. Likewise, mounting evidence associates vascular and endothelial cell dysfunction with increased mortality. This review focuses on understanding how endothelial cell pathology is caused by SARS-CoV-2 at the molecular and cellular levels and how …
Analyses Of The Expression, Immunohistochemical Properties And Serodiagnostic Potential Of Schistosoma Japonicum Peroxiredoxin-4, Minh-Anh Dang-Trinh, Jose Ma. M. Angeles, Kharleezelle J. Moendeg, Adrian Miki C. Macalanda, Thu-Thuy Nguyen, Luna Higuchi, Shotaro Nakagun, Masahi Kirinoki, Yuichi Chigusa, Yasuyuki Goto, Shin-Ichiro Kawazu
Analyses Of The Expression, Immunohistochemical Properties And Serodiagnostic Potential Of Schistosoma Japonicum Peroxiredoxin-4, Minh-Anh Dang-Trinh, Jose Ma. M. Angeles, Kharleezelle J. Moendeg, Adrian Miki C. Macalanda, Thu-Thuy Nguyen, Luna Higuchi, Shotaro Nakagun, Masahi Kirinoki, Yuichi Chigusa, Yasuyuki Goto, Shin-Ichiro Kawazu
Biology Faculty Publications
Background
Schistosoma japonicum, which inhabits the mesenteric vein of the mammalian hosts for about 20 to 30 years, is subjected to the oxidative stresses from the host defense mechanism during their intra-mammalian stages. To counteract this host immune attack, the parasite utilizes their antioxidant system for survival inside the host. Peroxiredoxins (Prxs), thiol-specific antioxidant proteins, play an essential role for protecting the parasite against oxidative stress by reducing hydrogen peroxide to water. Only three types of 2-Cys Prxs have been previously characterized in S. japonicum whereas a fourth Prx has been identified for Schistosoma mansoni as Prx-4. A sequence …
Increased Diversity And Novel Subtypes Among Clinical Cryptosporidium Parvum And Cryptosporidium Hominis Isolates In Southern Ireland, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
Increased Diversity And Novel Subtypes Among Clinical Cryptosporidium Parvum And Cryptosporidium Hominis Isolates In Southern Ireland, Jennifer K. O'Leary, Liam Blake, Gerard D. Corcoran, Roy D. Sleator, Brigid Lucey
Department of Biological Sciences Publications
Reported incidence rates of cryptosporidiosis in Ireland are consistently among the highest in Europe. Despite the national prevalence of this enteric parasite and the compulsory nature of incidence surveillance and reporting, in-depth analyses seeking to genotype clinical isolates of Cryptosporidium on an intra-species level are rarely undertaken in Ireland. This molecular epidemiology study of 163 clinical Cryptosporidium isolates was conducted in Southern Ireland, from 2015 to 2018, in order to ascertain population subtype heterogeneity. Analysis was conducted via real-time PCR amplification and gp60 gene sequencing, which successfully determined the subtype designation of 149 of the 163 (91.4%) tested isolates. Overall, …
Ectromelia-Encoded Virulence Factor C15 Specifically Inhibits Antigen Presentation To Cd4+ T Cells Post Peptide Loading, Katherine S. Forsyth, Nathan H. Roy, Elise Peauroi, Brian C. Dehaven, Erik D. Wold, Adam R. Hersperger, Janis K. Burkhardt, Laurence C. Eisenlohr
Ectromelia-Encoded Virulence Factor C15 Specifically Inhibits Antigen Presentation To Cd4+ T Cells Post Peptide Loading, Katherine S. Forsyth, Nathan H. Roy, Elise Peauroi, Brian C. Dehaven, Erik D. Wold, Adam R. Hersperger, Janis K. Burkhardt, Laurence C. Eisenlohr
Biology Faculty Work
Smallpox and monkeypox pose severe threats to human health. Other orthopoxviruses are comparably virulent in their natural hosts, including ectromelia, the cause of mousepox. Disease severity is linked to an array of immunomodulatory proteins including the B22 family, which has homologs in all pathogenic orthopoxviruses but not attenuated vaccine strains. We demonstrate that the ectromelia B22 member, C15, is necessary and sufficient for selective inhibition of CD4+ but not CD8+ T cell activation by immunogenic peptide and superantigen. Inhibition is achieved not by down-regulation of surface MHC- II or co-stimulatory protein surface expression but rather by interference with …
The Genesis Of Sars-Cov-2 Virus And The Origin Of The Covid-19 Pandemic, Alan L. Gillen
The Genesis Of Sars-Cov-2 Virus And The Origin Of The Covid-19 Pandemic, Alan L. Gillen
Faculty Publications and Presentations
The current outbreak of the 2019 novel coronavirus (SARS-CoV-2, fig. 1), causing a respiratory-tract illness, first started in Wuhan, China, and has been escalating worldwide. The official disease name became known as COVID-19 in mid-spring 2020. It shares some characteristics of the SARS virus of 2002–3. Early on, with many cases in Wuhan, China, it was reported that the outbreak had some association with animal markets, which indicated that there was animal-to-person transmission. Like SARS-CoV-1, the suspected animal source of the virus is bats. We have not seen this virus before, and our bodies were not ready for this, nor …
Investigating The Interactions Between Individual Calmodulin And Hiv-1 Protein Domains, Riley K. Kendall, Jerry Larue
Investigating The Interactions Between Individual Calmodulin And Hiv-1 Protein Domains, Riley K. Kendall, Jerry Larue
Student Scholar Symposium Abstracts and Posters
The World Health Organization found that 37.9 million people were living with HIV by the end of 2018. HIV is a virus that weakens the immune system through viral replication and the destruction of CD4+ T-cells, which are white blood cells that detect infection and make antibodies. A cure for HIV has not yet been discovered. HIV-1 contains a Gag polyprotein which regulates the stages of viral replication. Previous studies suggest that the myristoyl group of a matrix protein peptide found on the Gag polyprotein, MA, forms a complex with a calcium-binding, multifunctional regulatory protein called Calmodulin (CaM). CaM …
Identification Of Staphylococcus Aureus In State Fair Samples, Ana Castillo Jimenez
Identification Of Staphylococcus Aureus In State Fair Samples, Ana Castillo Jimenez
Research and Scholarship Symposium Posters
No abstract provided.
Effects Of Alpha- And Beta-Adrenergic Receptor Blockade Upon Inflammatory Responses To Acute And Chronic Sleep Fragmentation, Nicholas David Wheeler
Effects Of Alpha- And Beta-Adrenergic Receptor Blockade Upon Inflammatory Responses To Acute And Chronic Sleep Fragmentation, Nicholas David Wheeler
Masters Theses & Specialist Projects
Generally, sleep is viewed as a recuperative process and its dysregulation has
cognitive, metabolic, immunological, and inflammatory implications that are largely deleterious to human health. Epidemiological and empirical studies have suggested that sleep fragmentation (SF) as result of obstructive sleep apnea (OSA) and other sleep abnormalities leads to pronounced systemic inflammatory responses, which are influenced by the sympathetic nervous system (SNS). However, the underlying molecular mechanisms contributing to SNS regulation of SF-induced inflammatory states are not fully understood. To assess the effects of the SNS system, C57BL/6j female mice were placed in automated SF chambers (12L:12D) and subjected to either …
Before The Pandemic Ends: Making Sure This Never Happens Again, Daniel R. Brooks, Eric P. Hoberg, Walter A. Boeger, Scott Lyell Gardner, Sabrina B. L. Araujo, Katalin Bajer, Sebastian Botero-Cañola, Brian Byrd, Gábor Földvári, Joseph A. Cook, Jonathan L. Dunnum, Altangerel Tsogtsaikhan Dursahinhan, László Zsolt Garamszegi, Dávid Herczeg, Ferenc Jakab, Alicia Juarrero, Gábor Kemenesi, Kornélia Kurucz, Virginia León-Règagnon, Hugo H. Mejía-Madrid, Orsolya Molnár, Richard A. Nisbett, Wolfgang Preiser, Michael Stuart, Eors Szathmary, Valeria Trivellone
Before The Pandemic Ends: Making Sure This Never Happens Again, Daniel R. Brooks, Eric P. Hoberg, Walter A. Boeger, Scott Lyell Gardner, Sabrina B. L. Araujo, Katalin Bajer, Sebastian Botero-Cañola, Brian Byrd, Gábor Földvári, Joseph A. Cook, Jonathan L. Dunnum, Altangerel Tsogtsaikhan Dursahinhan, László Zsolt Garamszegi, Dávid Herczeg, Ferenc Jakab, Alicia Juarrero, Gábor Kemenesi, Kornélia Kurucz, Virginia León-Règagnon, Hugo H. Mejía-Madrid, Orsolya Molnár, Richard A. Nisbett, Wolfgang Preiser, Michael Stuart, Eors Szathmary, Valeria Trivellone
Scott L. Gardner Publications
Introduction
On 30 January 2020, the World Health Organization (WHO) declared a Global Health Emergency of international concern attendant to the emergence and spread of SARS-CoV-2, nearly two months after the first reported emergence of human cases in Wuhan, China. In the subsequent two months, global, national and local health personnel and infrastructures have been overwhelmed, leading to suffering and death for infected people, and the threat of socio-economic instability and potential collapse for humanity as a whole. This shows that our current and traditional mode of coping, anchored in responses after the fact, is not capable of dealing with …
A New Genus And Two New Species Of Unarmed Hymenolepidid Cestodes (Cestoda: Hymenolepididae) From Geomyid Rodents In Mexico And Costa Rica, Scott Lyell Gardner, Altangerel Tsogtsaikhan Dursahinhan, Mariel Campbell, S. Elizabeth Rácz
A New Genus And Two New Species Of Unarmed Hymenolepidid Cestodes (Cestoda: Hymenolepididae) From Geomyid Rodents In Mexico And Costa Rica, Scott Lyell Gardner, Altangerel Tsogtsaikhan Dursahinhan, Mariel Campbell, S. Elizabeth Rácz
Scott L. Gardner Publications
Two new cestodes of the family Hymenolepididae are described from two species of rodents of the family Geomyidae collected in Mexico and Costa Rica. One new species of Hymenolepis is described from Cratogeomys planiceps Merriam 1895 from near Toluca, Mexico and another that we allocate to a new genus is described from Heterogeomys heterodus (Peters, 1865) from near Irazú Volcano, Costa Rica. Hymenolepis s. str. includes those Hymenolepididae with an apical organ, with no hooks on suckers or apical organ, and three testes. Hobergia irazuensis n. gen., n. sp. includes a hymenolepidid with an apical organ, unarmed scolex, small …
Gaharitrema Droneni N. Gen., N. Sp. (Digenea: Zoogonidae: Lepidophyllinae) From The Pudgy Cuskeel, Spectrunculus Grandis (Ophidiiformes: Ophidiidae), From Deep Waters Off Oregon, With Updates Keys To Zoogonid Subfamilies And Genera, Charles K. Blend, Gábor R. Rácz, Scott Gardner
Gaharitrema Droneni N. Gen., N. Sp. (Digenea: Zoogonidae: Lepidophyllinae) From The Pudgy Cuskeel, Spectrunculus Grandis (Ophidiiformes: Ophidiidae), From Deep Waters Off Oregon, With Updates Keys To Zoogonid Subfamilies And Genera, Charles K. Blend, Gábor R. Rácz, Scott Gardner
Scott L. Gardner Publications
Gaharitrema droneni n. gen., n. sp. (Digenea: Zoogonidae: Lepidophyllinae) is described from the intestine of the pudgy cuskeel, Spectrunculus grandis (Gu¨ nther, 1877) (Ophidiiformes: Ophidiidae), collected at 2,800 m depth from the northeastern Pacific Ocean off Oregon. The new genus is distinguished from Brachyenteron Manter, 1934 and Steganoderma Stafford, 1904, the 2 closest lepidophylline genera, and from 4 other zoogonid genera erected since 2007, the last major revision of the family, by a combination of diagnostic features including a pyriform or spindle-shaped body, smooth testes and ovary, narrow ceca that reach with the vitellarium into the hindbody, an unspecialized ventral …
Unsustainable: A Planet In Crisis, Sam Yates
Unsustainable: A Planet In Crisis, Sam Yates
Ewing Gallery of Art & Architecture
Unsustainable: A Planet in Crisis features artwork ranging in material, discipline, and execution that addresses the theme of planetary crises – climate change, the rise of disease and superbugs, world conflict and national instability, plastics in the ocean, gun violence, pollution of the waterways from mining, air pollution from use of fossil fuels, the opioid crisis, and species extinction.
Participating artists are: Michele Banks, Brandon Ballengee, PhD, Scott Chimileski, PhD + Roberto Kolter, PhD, Brandon Donahue, Lorrie Fredette, Yeon Jin Kim Pam Longobardi, Dan Mills, John Sabraw, and Karen Shaw.
Obituary: Sydney Anderson (1927–2018), Scott Lyell Gardner, Robert M. Timm, Nancy Olds, Hugh H. Genoways
Obituary: Sydney Anderson (1927–2018), Scott Lyell Gardner, Robert M. Timm, Nancy Olds, Hugh H. Genoways
Scott L. Gardner Publications
On August 12, 2018, the American Society of Mammalogists (ASM) lost one of its giants of the latter half of the 20th century when Sydney Anderson quietly passed away at his home in Birmingham, Alabama, at the age of 91. “Syd,” to his many friends and colleagues, was born on January 11, 1927 in Topeka, Kansas, to Robert Grant and Evelyn Fern (Hunt) Anderson.
Anderson began his professional career at the University of Kansas, where for four years (1955–1959) he served as Assistant Curator in charge of mammals in the Museum of Natural History, and Instructor in the Department of …
Host Relationships And Geographic Distribution Of Species Of Blanchard, 1848 (Onchoproteocephalidea, Onchobothriidae) In Elasmobranchs: A Metadata Analysis, Francisco Zaragoza-Tapia, Griselda Pulido-Flores, Scott L. Gardner, Scott Monks
Host Relationships And Geographic Distribution Of Species Of Blanchard, 1848 (Onchoproteocephalidea, Onchobothriidae) In Elasmobranchs: A Metadata Analysis, Francisco Zaragoza-Tapia, Griselda Pulido-Flores, Scott L. Gardner, Scott Monks
Scott L. Gardner Publications
Species of Acanthobothrium have been documented as parasites of the spiral intestine of elasmobranchs. Results of a metadata analysis indicate that 114 species of elasmobranchs have been reported as hosts of 200 species of Acanthobothrium. The metadata analysis revealed that 3.7% of species of sharks and 14.9% of species of rays that have been reported as hosts to date; some species are parasitized by more than one species of Acanthobothrium. This work provides a Category designation, as proposed by Ghoshroy and Caira (2001), for each species of Acanthobothrium. These Category designations are a tool to facilitate comparisons …
Tick-Borne Flavivirus Inhibits Sphingomyelinase (Issmase), A Venomous Spider Ortholog To Increase Sphingomyelin Lipid Levels For Its Survival In Ixodes Scapularis Ticks, Pravesh Regmi, Supreet Khanal, Girish Neelakanta, Hameda Sultana
Tick-Borne Flavivirus Inhibits Sphingomyelinase (Issmase), A Venomous Spider Ortholog To Increase Sphingomyelin Lipid Levels For Its Survival In Ixodes Scapularis Ticks, Pravesh Regmi, Supreet Khanal, Girish Neelakanta, Hameda Sultana
Biological Sciences Faculty Publications
Our previous study showed that cells from medically important arthropods, such as ticks, secrete extracellular vesicles (EVs) including exosomes that mediate transmission of flavivirus RNA and proteins to the human cells. Understanding the molecular determinants and mechanism(s) of arthropod-borne flavivirus transmission via exosome biogenesis is very important. In this current study, we showed that in the presence of tick-borne Langat Virus (LGTV; a member of tick-borne encephalitis virus complex), the expression of arthropod IsSMase, a sphingomyelinase D (SMase D) that catalyzes the hydrolytic cleavage of substrates like sphingomyelin (SM) lipids, was significantly reduced in both Ixodes scapularis ticks (in vivo) …
Discovery Of Exosomes From Tick Saliva And Salivary Glands Reveals Therapeutic Roles For Cxcl12 And Il-8 In Wound Healing At The Tick-Human Skin Interface, Wenshuo Zhou, Faizan Tahir, Joseph Che-Yen Wang, Michael Woodson, Michael B. Sherman, Shahid Karim, Girish Neelakanta, Hameeda Sultana
Discovery Of Exosomes From Tick Saliva And Salivary Glands Reveals Therapeutic Roles For Cxcl12 And Il-8 In Wound Healing At The Tick-Human Skin Interface, Wenshuo Zhou, Faizan Tahir, Joseph Che-Yen Wang, Michael Woodson, Michael B. Sherman, Shahid Karim, Girish Neelakanta, Hameeda Sultana
Biological Sciences Faculty Publications
Ticks secrete various anti-coagulatory, anti-vasoconstrictory, anti-inflammatory, and anti-platelet aggregation factors in their saliva at the bite site during feeding to evade host immunological surveillance and responses. For the first time, we report successful isolation of exosomes (small membrane-bound extracellular signaling vesicles) from saliva and salivary glands of partially fed or unfed ixodid ticks. Our data showed a novel role of these in vivo exosomes in the inhibition of wound healing via downregulation of C-X-C motif chemokine ligand 12 (CXCL12) and upregulation of interleukin-8 (IL-8). Cryo-electron microscopy (cryo-EM) analysis revealed that tick saliva and salivary glands are composed of heterogeneous populations …