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Full-Text Articles in Entire DC Network
Nutritional And Anti-Nutritional Compositions Of Defatted Nebraska Hybrid Hazelnut Meal, Yixiang Xu, Milford Hanna
Nutritional And Anti-Nutritional Compositions Of Defatted Nebraska Hybrid Hazelnut Meal, Yixiang Xu, Milford Hanna
Department of Food Science and Technology: Faculty Publications
Defatted meal of hybrid hazelnuts may have potential food and value-added industrial applications. The proximate composition, mineral elements, amino acid profile and anti-nutritional factors (total phenolics, tannins, condensed tannins and phytates) of defatted meals of ten Nebraska hybrid hazelnut genotypes were investigated. Excluding the amino acid profile, the nutritional and anti-nutritional compositions of the meals differed significantly, with high protein, carbohydrate, neutral and acid detergent fibre concentrations and energy value. Mineral concentrations were higher than those previously reported. K was the most abundant mineral element, followed by P, Ca and Mg. Seven essential amino acids accounted for approximately 27.8% of …
Environment And Hybrid Influences On Rapid-Visco-Analysis Flour Properties Of Food-Grade Grain Sorghum, Joni K. Griess, Stephen C. Mason, David S. Jackson, Tom D. Galusha, Jeffrey F. Pedersen, Muhammad Yaseen
Environment And Hybrid Influences On Rapid-Visco-Analysis Flour Properties Of Food-Grade Grain Sorghum, Joni K. Griess, Stephen C. Mason, David S. Jackson, Tom D. Galusha, Jeffrey F. Pedersen, Muhammad Yaseen
Department of Food Science and Technology: Faculty Publications
Grain processors would benefi t from information about the production environment and the infl uences of the sorghum [Sorghum bicolor (L.) Moench] hybrid on food-grade fl our properties. The objective of this study was to determine the effects of environment and hybrid on rapid-visco-analysis (RVA) fl our properties of commercially available food-grade sorghum. A randomized complete block experiment was planted in 12 environments, which included the 2004 and 2005 growing seasons and irrigated and dryland water regimes in eastern, central, and west central Nebraska, and a dryland, low-N environment in eastern Nebraska. The environment accounted for 71–85% of the total …
Evaluation Of Mold And Mycotoxin Contaminations In Hybrid Hazelnuts Grown In Nebraska, Yixiang Xu, Andreia Bianchini, Milford A. Hanna
Evaluation Of Mold And Mycotoxin Contaminations In Hybrid Hazelnuts Grown In Nebraska, Yixiang Xu, Andreia Bianchini, Milford A. Hanna
Department of Food Science and Technology: Faculty Publications
Hybrid hazelnuts are a potential oilseed crop for food and value-added industrial applications, but they are vulnerable to mold contamination. Mold and mycotoxin contamination were investigated in three forms (whole nut, kernel, and ground meal) of Nebraska hybrid hazelnuts. The nut was the most contaminated form, followed by ground meal and kernel. Penicillium was the predominant genus isolated from all three forms, and Alternaria and Cladosporium also were prevalent. In spite of presence of several toxigenic molds, all tested samples were mycotoxin free.
Barcoded Pyrosequencing Reveals That Consumption Of Galactooligosaccharides Results In A Highly Specific Bifidogenic Response In Humans, Lauren M. G. Davis, Ines Martinez, Jens Walter, Caitlin Goin, Robert W. Hutkins
Barcoded Pyrosequencing Reveals That Consumption Of Galactooligosaccharides Results In A Highly Specific Bifidogenic Response In Humans, Lauren M. G. Davis, Ines Martinez, Jens Walter, Caitlin Goin, Robert W. Hutkins
Department of Food Science and Technology: Faculty Publications
Prebiotics are selectively fermented ingredients that allow specific changes in the gastrointestinal microbiota that confer health benefits to the host. However, the effects of prebiotics on the human gut microbiota are incomplete as most studies have relied on methods that fail to cover the breadth of the bacterial community. The goal of this research was to use high throughput multiplex community sequencing of 16S rDNA tags to gain a community wide perspective of the impact of prebiotic galactooligosaccharide (GOS) on the fecal microbiota of healthy human subjects. Fecal samples from eighteen healthy adults were previously obtained during a feeding trial …
Suggested Improvements For The Allergenicity Assessment Of Genetically Modified Plants Used In Foods, Richard E. Goodman
Suggested Improvements For The Allergenicity Assessment Of Genetically Modified Plants Used In Foods, Richard E. Goodman
Department of Food Science and Technology: Faculty Publications
Genetically modified (GM) plants are increasingly used for food production and industrial applications. As the global population has surpassed 7 billion and per capita consumption rises, food production is challenged by loss of arable land, changing weather patterns, and evolving plant pests and disease. Previous gains in quantity and quality relied on natural or artificial breeding, random mutagenesis, increased pesticide and fertilizer use, and improved farming techniques, all without a formal safety evaluation. However, the direct introduction of novel genes raised questions regarding safety that are being addressed by an evaluation process that considers potential increases in the allergenicity, toxicity, …
Wild Buckwheat Is Unlikely To Pose A Risk To Buckwheat-Allergic Individuals, Julie A. Nordlee, Rakhi Panda, Joseph L. Baumert, Richard E. Goodman, Steve Taylor
Wild Buckwheat Is Unlikely To Pose A Risk To Buckwheat-Allergic Individuals, Julie A. Nordlee, Rakhi Panda, Joseph L. Baumert, Richard E. Goodman, Steve Taylor
Department of Food Science and Technology: Faculty Publications
Buckwheat (Fagopyrum esculentum) is a commonly allergenic food especially in Asia where buckwheat is more commonly consumed. Wild buckwheat (Polygonum convolvulus, recently changed to Fallopia convolvulus) is an annual weed prevalent in grain-growing areas of the United States. Wild buckwheat is not closely related to edible buckwheat although the seeds do have some physical resemblance. A large shipment of wheat into Japan was halted by the discovery of the adventitious presence of wild buckwheat seeds over possible concerns for buckwheat-allergic consumers. However, IgE-binding was not observed to an extract of wild buckwheat using sera from …
Dietary Selenium Affects Host Selenoproteome Expression By Influencing The Gut Microbiota, Marina V. Kasaikina, Marina A. Kravtsova, Byung Cheon Lee, Javier Seravalli, Daniel A. Peterson, Jens Walter, Ryan Legge, Andrew K. Benson, Dolph L. Hatfield, Vadim Gladyshev
Dietary Selenium Affects Host Selenoproteome Expression By Influencing The Gut Microbiota, Marina V. Kasaikina, Marina A. Kravtsova, Byung Cheon Lee, Javier Seravalli, Daniel A. Peterson, Jens Walter, Ryan Legge, Andrew K. Benson, Dolph L. Hatfield, Vadim Gladyshev
Department of Food Science and Technology: Faculty Publications
Colonization of the gastrointestinal tract and composition of the microbiota may be influenced by components of the diet, including trace elements. To understand how selenium regulates the intestinal microflora, we used high-throughput sequencing to examine the composition of gut microbiota of mice maintained on selenium-deficient, selenium-sufficient, and selenium-enriched diets. The microbiota diversity increased as a result of selenium in the diet. Specific phylotypes showed differential effects of selenium, even within a genus, implying that selenium had unique effects across microbial taxa. Conventionalized germfree mice subjected to selenium diets gave similar results and showed an increased diversity of the bacterial population …
An Experimental Live Chimeric Porcine Circovirus 1-2a Vaccine Decreases Porcine Circovirus 2b Viremia When Administered Intramuscularly Or Orally In A Porcine Circovirus 2b And Porcine Reproductive And Respiratory Syndrome Virus Dual-Challenge Model, Tanja Opriessnig, João C. Gomes-Neto, Michelle Hermann, Hui-Gang Shen, Nathan M. Beach, Yaowei Huang, Patrick G. Halbur, Xiang-Jin Meng
An Experimental Live Chimeric Porcine Circovirus 1-2a Vaccine Decreases Porcine Circovirus 2b Viremia When Administered Intramuscularly Or Orally In A Porcine Circovirus 2b And Porcine Reproductive And Respiratory Syndrome Virus Dual-Challenge Model, Tanja Opriessnig, João C. Gomes-Neto, Michelle Hermann, Hui-Gang Shen, Nathan M. Beach, Yaowei Huang, Patrick G. Halbur, Xiang-Jin Meng
Department of Food Science and Technology: Faculty Publications
Commercially available inactivated vaccines against porcine circovirus type 2 (PCV2) have been shown to be effective in reducing PCV2 viremia. Live-attenuated, orally administered vaccines are widely used in the swine industry for several pathogens because of their ease of use yet they are not currently available for PCV2 and efficacy. The aims of this study were to determine the efficacy of a live-attenuated chimeric PCV2vaccine inadual-challengemodelusingPCV2bandporcine reproductiveandrespiratorysyndrome virus (PRRSV) and to compare intramuscular (IM) and oral (PO) routes of vaccination. Eighty-three 2-week-old pigs were randomized into 12 treatment groups: four vaccinated IM, four vaccinated PO and four non-vaccinated (control) groups. …
Child Temperament, Teacher–Child Interactions, And Teacher–Child Relationships: A Longitudinal Investigation From First To Third Grade, Kathleen Moritz Rudasill
Child Temperament, Teacher–Child Interactions, And Teacher–Child Relationships: A Longitudinal Investigation From First To Third Grade, Kathleen Moritz Rudasill
Department of Educational Psychology: Faculty Publications
The quality of children’s relationships with teachers in early elementary grades has implications for their academic and behavioral outcomes in later grades (e.g., Hamre & Pianta, 2001). The current study uses data from the NICHD SECCYD to extend work from a recent study of first grade (Rudasill & Rimm-Kaufman, 2009) by examining connections between child shyness, effortful control, and gender and teacher–child relationship quality in third grade directly and indirectly through the frequency of teacher- and child-initiated interactions in third grade, and teacher–child relationship quality in first grade. Path analyses using structural equation models were used to test two different …
The Role Of Classroom Quality In Ameliorating The Academic And Social Risks Associated With Difficult Temperament, Timothy W. Curby, Kathleen Moritz Rudasill, Taylor Edwards, Koraly Pérez-Edgar
The Role Of Classroom Quality In Ameliorating The Academic And Social Risks Associated With Difficult Temperament, Timothy W. Curby, Kathleen Moritz Rudasill, Taylor Edwards, Koraly Pérez-Edgar
Department of Educational Psychology: Faculty Publications
The present study examines the moderating role first grade classroom quality may have on the relations between children’s difficult temperament (assessed in infancy) and their academic and social outcomes in early elementary school (first grade). Using data from the National Institute of Child Health and Human Development’s Study of Early Child Care and Youth Development, 1032 children were rated by their mothers at 6 months of age on difficult temperament. The quality of first grade classroom environments were then observed and rated along three domains: emotional support, classroom organization, and instructional support. Regression analyses examined the statistical interactions between difficult …
Internalizing Problems In Students Involved In Bullying And Victimization [Chapter 5], Susan M. Swearer Napolitano, Adam Collins, Kisha Haye Radliff, Cixin Wang
Internalizing Problems In Students Involved In Bullying And Victimization [Chapter 5], Susan M. Swearer Napolitano, Adam Collins, Kisha Haye Radliff, Cixin Wang
Department of Educational Psychology: Faculty Publications
In this chapter, we will review the literature on internalizing problems in youth who are involved in bullying. Involvement in bullying occurs along a continuum (i.e., the bully- victim continuum), meaning that students can participate in multiple roles, including bullying others, being bullied, both bullying others and being bullied, witnessing bullying, and no involvement in bullying. It is clear that involvement in bullying is not defined by static and fixed roles in individuals. It is also evident that students involved in the bully-victim continuum experience greater levels of internalizing problems compared to students who are not involved in bullying. The …
Expanding The Social-Ecological Framework Of Bullying Among Youth: Lessons Learned From The Past And Directions For The Future [Chapter 1], Susan M. Swearer Napolitano, Dorothy L. Espelage
Expanding The Social-Ecological Framework Of Bullying Among Youth: Lessons Learned From The Past And Directions For The Future [Chapter 1], Susan M. Swearer Napolitano, Dorothy L. Espelage
Department of Educational Psychology: Faculty Publications
When the first edition of this book was published in 2004, we argued that bullying had to be studied across individual, peer, family, school, community, and cultural contexts. Like discrimination, bullying is a complex phenomenon, with multiple causal factors and multiple outcomes. We and other authors have continued to frame bullying among school-aged youth from this social ecological perspective. Drawing a parallel to discriminatory behavior, research on bullying has established that bully perpetration includes physical and verbal behavior within an affective framework (i.e., the intent to harm). Bullying comprises a complex set of antecedents, behaviors, and consequences. The reasons why …
A Randomized Trial Examining The Effects Of Parent Engagement On Early Language And Literacy: The Getting Ready Intervention, Susan M. Sheridan, Lisa Knoche, Kevin A. Kupzyk, Carolyn P. Edwards, Christine A. Marvin
A Randomized Trial Examining The Effects Of Parent Engagement On Early Language And Literacy: The Getting Ready Intervention, Susan M. Sheridan, Lisa Knoche, Kevin A. Kupzyk, Carolyn P. Edwards, Christine A. Marvin
Department of Educational Psychology: Faculty Publications
Language and literacy skills established during early childhood are critical for later school success. Parental engagement with children has been linked to a number of adaptive characteristics in preschoolers including language and literacy development, and family-school collaboration is an important contributor to school readiness. This study reports the results of a randomized trial of a parent engagement intervention designed to facilitate school readiness among disadvantaged preschool children, with a particular focus on language and literacy development. Participants included 217 children, 211 parents, and 29 Head Start teachers in 21 schools. Statistically significant differences in favor of the treatment group were …
In Vitro Models For Glaucoma Research: Effects Of Hydrostatic Pressure, Yuan Lei, Shadi Rajabi, Ryan M. Pedrigi, Darryl R. Overby, A. Thomas Read, C. Ross Ethier
In Vitro Models For Glaucoma Research: Effects Of Hydrostatic Pressure, Yuan Lei, Shadi Rajabi, Ryan M. Pedrigi, Darryl R. Overby, A. Thomas Read, C. Ross Ethier
Department of Mechanical and Materials Engineering: Faculty Publications
PURPOSE. The response of cells (e.g., optic nerve head [ONH] cells) to mechanical stress is important in glaucoma. Studies have reported the biological effects of hydrostatic pressure on ONH cells cultured on a rigid substrate. An apparatus, designed to independently vary hydrostatic pressure and gas tension (including oxygen tension) in culture medium, was used to evaluate the effects of pressure and tension on cell migration, shape, and α-tubulin architecture in a transformed cell line (DITNC1 rat cortical astrocytes).
METHODS. During the assay period, cells were exposed to one of four experimental configurations: (1) control pressure and control gas tension; (2) …
Impact Of Elliptical Trainer Ergonomic Modifications On Perceptions Of Safety, Comfort, Workout, And Usability For People With Physical Disabilities And Chronic Conditions, Judith M. Burnfield, Yu Shu, Thad W. Buster, Adam P. Taylor, Carl A. Nelson
Impact Of Elliptical Trainer Ergonomic Modifications On Perceptions Of Safety, Comfort, Workout, And Usability For People With Physical Disabilities And Chronic Conditions, Judith M. Burnfield, Yu Shu, Thad W. Buster, Adam P. Taylor, Carl A. Nelson
Department of Mechanical and Materials Engineering: Faculty Publications
Background The popularity of elliptical training has grown in rehabilitation, fitness, and home settings as a means for improving fitness and walking, yet many people with physical disabilities and chronic conditions experience difficulties when trying to use elliptical trainers.
Objective The purpose of this study was to compare, for people with disabilities and chronic conditions, perceptions of safety, comfort, workout, and usability of 4 elliptical trainers before and after the development of a set of low-cost adaptations.
Design This study was a quasi-experimental repeated-measures investigation.
Methods Twenty adults with diverse medical conditions and functional abilities evaluated 4 elliptical trainers for …
Movements Of Wolves At The Northern Extreme Of The Species’ Range, Including During Four Months Of Darkness, L. David Mech, H. Dean Cluff
Movements Of Wolves At The Northern Extreme Of The Species’ Range, Including During Four Months Of Darkness, L. David Mech, H. Dean Cluff
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Information about wolf (Canis lupus) movements anywhere near the northern extreme of the species’ range in the High Arctic (.75uN latitude) are lacking. There, wolves prey primarily on muskoxen (Ovibos moschatus) and must survive 4 months of 24 hr/day winter darkness and temperatures reaching 253 C. The extent to which wolves remain active and prey on muskoxen during the dark period are unknown, for the closest area where information is available about winter wolf movements is .2,250 km south. We studied a pack of $20 wolves on Ellesmere Island, Nunavut, Canada (80°N latitude) from July 2009 …
Parsing Demographic Effects Of Canine Parvovirus On A Minnesota Wolf Population, L. David Mech, Sagar M. Goyal
Parsing Demographic Effects Of Canine Parvovirus On A Minnesota Wolf Population, L. David Mech, Sagar M. Goyal
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
We examined 35 years of relationships among wolf (Canis lupus) pup survival, population change and canine parvovirus (CPV) seroprevalence in northeastern Minnesota to determine when CPV exerted its strongest effects. Using correlation analysis of data from five periods of 7-years each from 1973 through 2007, we learned that the strongest effect of CPV on pup survival (r = -0.73) and on wolf population change (r = -0.92) was during 1987 to 1993. After that, little effect was documented despite a mean CPV seroprevalence from 1994 of 2007 of 70.8% compared with 52.6% during 1987 to 1993. We …
Laboratory Assays Of Select Candidate Insecticides For Control Of Dendroctonus Ponderosae, Christopher J. Fettig, Christopher J. Hayes, Stephen R. Mckelvey, Sylvia R. Mori
Laboratory Assays Of Select Candidate Insecticides For Control Of Dendroctonus Ponderosae, Christopher J. Fettig, Christopher J. Hayes, Stephen R. Mckelvey, Sylvia R. Mori
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
BACKGROUND: The mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae, Scolytinae), is the most destructive bark beetle in western North America. Dendroctonus ponderosae can be prevented from successfully colonizing and killing individual trees by ground-based sprays of insecticides applied directly to the tree bole. However, the future availability of several active ingredients, including carbarylwhich is most commonly used in thewestern United States, is uncertain. Two novel insecticides, cyantraniliprole [Cyazypyr ™-OD (oil dispersion) and Cyazypyr ™-SC (suspension concentrate)] and chlorantraniliprole (Rynaxypyr ®), and carbaryl were assayed in both filter paper and topical assays.
RESULTS: Compared with 20 000 mg L−1 …
Heat Waves Measured With Modis Land Surface Temperature Data Predict Changes In Avian Community Structure, Thomas P. Albright, Anna M. Pidgeon, Chadwick D. Rittenhouse, Murray K. Clayton, Curtis H. Flather, Patrick D. Culbert, Volker C. Radeloff
Heat Waves Measured With Modis Land Surface Temperature Data Predict Changes In Avian Community Structure, Thomas P. Albright, Anna M. Pidgeon, Chadwick D. Rittenhouse, Murray K. Clayton, Curtis H. Flather, Patrick D. Culbert, Volker C. Radeloff
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Heat waves are expected to become more frequent and severe as climate changes, with unknown consequences for biodiversity. We sought to identify ecologically-relevant broad-scale indicators of heat waves based on MODIS land surface temperature (LST) and interpolated air temperature data and assess their associations with avian community structure. Specifically, we asked which data source, time periods, and heat wave indices best predicted changes in avian abundance and species richness. Using mixed effects models, we analyzed associations between these indices and data from the North American Breeding Bird Survey in the central United States between 2000 and 2007 in four ecoregions …
Tetherin Inhibits Prototypic Foamy Virus Release, Fengwen Xu, Juan Tan, Ruikang Liu, Dan Xu, Yue Li, Yunqi Geng, Chen Liang, Wentao Qiao
Tetherin Inhibits Prototypic Foamy Virus Release, Fengwen Xu, Juan Tan, Ruikang Liu, Dan Xu, Yue Li, Yunqi Geng, Chen Liang, Wentao Qiao
Nebraska Center for Virology: Faculty Publications
Background: Tetherin (also known as BST-2, CD317, and HM1.24) is an interferon- induced protein that blocks the release of a variety of enveloped viruses, such as retroviruses, filoviruses and herpesviruses. However, the relationship between tetherin and foamy viruses has not been clearly demonstrated.
Results: In this study, we found that tetherin of human, simian, bovine or canine origin inhibits the production of infectious prototypic foamy virus (PFV). The inhibition of PFV by human tetherin is counteracted by human immunodeficiency virus type 1 (HIV-1) Vpu. Furthermore, we generated human tetherin transmembrane domain deletion mutant (delTM), glycosyl phosphatidylinositol (GPI) anchor …
Pathogenicity And Rapid Growth Kinetics Of Feline Immunodeficiency Virus Are Linked To 3' Elements, Jesse Thompson, Martha Macmillan, Karen Boegler, Charles Wood, John H. Elder, Sue Vandewoude
Pathogenicity And Rapid Growth Kinetics Of Feline Immunodeficiency Virus Are Linked To 3' Elements, Jesse Thompson, Martha Macmillan, Karen Boegler, Charles Wood, John H. Elder, Sue Vandewoude
Nebraska Center for Virology: Faculty Publications
Chimeric viruses constructed between a highly pathogenic Feline Immunodeficiency Virus isolate (FIV-C36) and a less pathogenic but neurotropic strain (FIV-PPR) have been used to map viral genetic determinants of in vivo pathogenicity. Chimeric virus FIV-PCenv, which contains FIV-C36 genome from the 39 region of pol to upstream of the 3'LTR on an FIV-PPR backbone, was previously shown to be replication-competent in vivo, inducing altered CD4+ T-cell and neutrophil profiles intermediate between parental strains following a delay in viral replication during initial infection. Examination of FIV-PCenv proviral sequences recovered at week 11 post-infection revealed two changes compared to initial …
Robust Rnai-Based Resistance To Mixed Infection Of Three Viruses In Soybean Plants Expressing Separate Short Hairpins From A Single Transgene, Xiuchun Zhang, Shirley Sato, Xiaohong Ye, Anne E. Dorrance, Thomas Jack Morris, Thomas E. Clemente, Feng Qu
Robust Rnai-Based Resistance To Mixed Infection Of Three Viruses In Soybean Plants Expressing Separate Short Hairpins From A Single Transgene, Xiuchun Zhang, Shirley Sato, Xiaohong Ye, Anne E. Dorrance, Thomas Jack Morris, Thomas E. Clemente, Feng Qu
Nebraska Center for Virology: Faculty Publications
Transgenic plants expressing double-stranded RNA (dsRNA) of virus
origin have been previously shown to confer resistance to virus infections
through the highly conserved RNA-targeting process termed RNA silencing
or RNA interference (RNAi). In this study we applied this strategy to
soybean plants and achieved robust resistance to multiple viruses with a
single dsRNA-expressing transgene. Unlike previous reports that relied
on the expression of one long inverted repeat (IR) combining sequences
of several viruses, our improved strategy utilized a transgene designed to
express several shorter IRs. Each of these short IRs contains highly conserved
sequences of one virus, forming dsRNA of …
Kaposi Sarcoma-Associated Herpesvirus Degrades Cellular Toll-Interleukin-1 Receptor Domain-Containing Adaptor-Inducing Β-Interferon (Trif), Humera Ahmad, Rachel Gubbels, Florencia Meyer, Thomas Waterbury, Rongtuan Lin, Luwen Zhang
Kaposi Sarcoma-Associated Herpesvirus Degrades Cellular Toll-Interleukin-1 Receptor Domain-Containing Adaptor-Inducing Β-Interferon (Trif), Humera Ahmad, Rachel Gubbels, Florencia Meyer, Thomas Waterbury, Rongtuan Lin, Luwen Zhang
Nebraska Center for Virology: Faculty Publications
Kaposi sarcoma-associated herpesvirus (KSHV) is a human ƴ - herpesvirus associated with several human malignancies. The replication and transcription activator (RTA) is necessary and sufficient for the switch from KSHV latency to lytic replication. Toll-interleukin-1 receptor (TIR) domain-containing adaptorinducing β-interferon (TRIF, also called TIR-domain-containing adaptor molecule-1 (TICAM-1)) is a signaling adaptor molecule that is critically involved in the Toll-like receptor 3 (TLR-3) and TLR-4 signaling pathways for type I interferon (IFN) production, a key component of innate immunity against microbial infection. In this report, we find a new mechanism by which RTA blocks innate immunity by targeting cellular TRIF. RTA …
Human Papillomavirus 16 Variants From Zambian Women With Normal Pap Smears, Yan Jun Lei, Kgomotso Makhaola, Daraporn Pittayakhajonwut, Charles Wood, Peter C. Angeletti
Human Papillomavirus 16 Variants From Zambian Women With Normal Pap Smears, Yan Jun Lei, Kgomotso Makhaola, Daraporn Pittayakhajonwut, Charles Wood, Peter C. Angeletti
Nebraska Center for Virology: Faculty Publications
Human papillomavirus (HPV) type 16 is the most prevalent high-risk viral genotype associated with cervical cancer. Six distinct phylogenetic clusters of HPVs have been identified and are distributed differently across five continents. HPV16 DNA was extracted from cervico-lavage samples from women with normal pap smears. The LCR regions were amplified in triplicate, cloned, sequenced, and analyzed from a total of 11 recovered HPV16 positive samples [Ng’andwe et al. (2007): BMC Infect Dis 7:77] were analyzed for sequence variation. The HPV16 LCR variants were assessed for promoter activity by use of a luciferase reporter gene. Six novel HPV16 variants with nucleotide …
Hiv-1 Clade B And C Isolates Exhibit Differential Replication: Relevance To Macrophage-Mediated Neurotoxicity, Agnes A. Constantino, Yunlong Huang, Hong Zhang, Charles Wood, Jialin C. Zheng
Hiv-1 Clade B And C Isolates Exhibit Differential Replication: Relevance To Macrophage-Mediated Neurotoxicity, Agnes A. Constantino, Yunlong Huang, Hong Zhang, Charles Wood, Jialin C. Zheng
Nebraska Center for Virology: Faculty Publications
HIV-associated neurocognitive disorders (HAND) continue to be a consequence of HIV-1 infection among clade B-infected individuals. In contrast, the incidence of severe neurological impairment is lower among clade C-infected patients in regions of Sub-Saharan Africa and India. Biological aspects such as replication, cytopathicity, inflammatory response, and neurotoxicity unique to each clade influence neuropathogenicity and ultimately affect the clinical outcome of the disease. We hypothesize that productive infection by clade C isolates leads to macrophagemediated neurotoxicity, although to a lesser extent than clade B isolates. Using a panel of primary isolates of clades B and C we demonstrated that clade B …
The Zambia Children's Ks-Hhv8 Study: Rationale, Study Design, And Study Methods, Veenu Minhas, Kay L. Crabtree, Ann Chao, Janet M. Wojcicki, Adrian M. Sifuniso, Catherine Nkonde, Chipepo Kankasa, Charles D. Mitchell, Charles Wood
The Zambia Children's Ks-Hhv8 Study: Rationale, Study Design, And Study Methods, Veenu Minhas, Kay L. Crabtree, Ann Chao, Janet M. Wojcicki, Adrian M. Sifuniso, Catherine Nkonde, Chipepo Kankasa, Charles D. Mitchell, Charles Wood
Nebraska Center for Virology: Faculty Publications
The epidemic of human immunodeficiency virus in Zambia has led to a dramatic rise in the incidence of human herpesvirus-8 (HHV-8)–associated Kaposi's sarcoma in both adults and children. However, there is a paucity of knowledge about the routes of HHV-8 transmission to young children. The Zambia Children's KS-HHV8 Study, a large, prospective cohort study in Lusaka, Zambia, was launched in 2004 to investigate the role of household members as a source of HHV-8 infection in young children and social behaviors that may modify the risk of HHV-8 acquisition. This cohort is distinct from other epidemiologic studies designed to investigate HHV-8 …
Prevalence Of Human Herpesvirus 8 (Hhv8) And Hepatitis C Virus (Hcv) In A Rural Community With High Risk For Blood Borne Infections In Central China, Tiejun Zhang, Na He, Yingying Ding, Kay L. Crabtree, Veenu Minhas, Charles Wood
Prevalence Of Human Herpesvirus 8 (Hhv8) And Hepatitis C Virus (Hcv) In A Rural Community With High Risk For Blood Borne Infections In Central China, Tiejun Zhang, Na He, Yingying Ding, Kay L. Crabtree, Veenu Minhas, Charles Wood
Nebraska Center for Virology: Faculty Publications
Former illegal blood donation in the past decade has caused HIV outbreaks in some rural areas in China. Other HIV associated virus infections, such as human herpesvirus 8 (HHV8) in such areas are still not well defined. In order to explore HHV8 and HCV seroprevalence and potential risk factors in such areas, a cross-sectional study with 305 HIV positive and 315 HIV negative subjects recruited from a rural county in Shanxi province was conducted, where illegal blood collection was reported. Interview questionnaires and serum testing were carried out with these participants. HCV and HHV8 seroprevalence were found to be higher …
Comparison Of Adenoviruses As Oncolytics And Cancer Vaccines In An Immunocompetent B Cell Lymphoma Model, Eric A. Weaver, Christopher Y. Chen, Shannon M. May, Mary E. Barry, Michael A. Barry
Comparison Of Adenoviruses As Oncolytics And Cancer Vaccines In An Immunocompetent B Cell Lymphoma Model, Eric A. Weaver, Christopher Y. Chen, Shannon M. May, Mary E. Barry, Michael A. Barry
Nebraska Center for Virology: Faculty Publications
We have screened human adenoviruses (Ads) for oncolytic activity against a variety of mouse and hamster cell lines and have found a number that are susceptible to a variety of Ad serotypes. A20 lymphoma is derived from BALB/c mice and is susceptible to infection and killing by a variety of human Ads. A20 is also a suitable cancer vaccine model, because these cells express a unique immunoglobulin variable region that can be targeted by vaccination. To compare Ads as cancer vaccines versus Ads as oncolytics, A20 tumors were initiated in im- munocompetent BALB/c mice. Mice immunized with first-generation Ad5 expressing …
Advances And Future Challenges In Adenoviral Vector Pharmacology And Targeting, Reeti Khare, Christopher Y. Chen, Eric A. Weaver, Michael A. Barry
Advances And Future Challenges In Adenoviral Vector Pharmacology And Targeting, Reeti Khare, Christopher Y. Chen, Eric A. Weaver, Michael A. Barry
Nebraska Center for Virology: Faculty Publications
Adenovirus is a robust vector for therapeutic applications, but its use is limited by our understanding of its complex in vivo pharmacology. In this review we describe the necessity of identifying its natural, widespread, and multi-faceted interactions with the host since this information will be crucial for efficiently redirecting virus into target cells. In the rational design of vectors, the notion of overcoming a sequence of viral “sinks” must be combined with re-targeting to target populations with capsid as well as shielding the vectors from pre-existing or toxic immune responses. It must also be noted that most known adenoviral pharmacology …
Species D Adenoviruses As Oncolytics Against B-Cell Cancers, Christopher Y. Chen, Julien S. Senac, Eric A. Weaver, Shannon M. May, Diane F. Jelinek, Philip Greipp, Thomas Witzig, Michael A. Barry
Species D Adenoviruses As Oncolytics Against B-Cell Cancers, Christopher Y. Chen, Julien S. Senac, Eric A. Weaver, Shannon M. May, Diane F. Jelinek, Philip Greipp, Thomas Witzig, Michael A. Barry
Nebraska Center for Virology: Faculty Publications
Purpose: Oncolytic viruses are self-amplifying anticancer agents that make use of the natural ability of viruses to kill cells. Adenovirus serotype 5 (Ad5) has been extensively tested against solid cancers, but less so against B-cell cancers because these cells do not generally express the coxsackie and adenoviral receptor (CAR). To determine whether other adenoviruses might have better potency, we "mined" the adenovirus virome of 55 serotypes for viruses that could kill B-cell cancers.
Experimental Design: Fifteen adenoviruses selected to represent Ad species B, C, D, E, and F were tested in vitro against cell lines and primary patient B-cell cancers …