Digital Commons Network^™

Virk Is A Periplasmic Protein Required For Efficient Secretion Of Plasmid-Encoded Toxin From Enteroaggregative Escherichia Coli, Gabriela Tapia-Pastrana, Lucia Chavez-Dueñas, Humberto Lanz-Mendoza, Ken Teter, Fernando Navarro-Garcí

Faculty Bibliography 2010s

Despite the autotransporter (AT) moniker, AT secretion appears to involve the function of periplasmic chaperones. We identified four periplasmic proteins that specifically bound to plasmid-encoded toxin (Pet), an AT produced by enteroaggregative Escherichia coli (EAEC). These proteins include the 17-kDa Skp chaperone and the 37-kDa VirK protein. We found that the virK gene is present in different Enterobacteriaceae. VirK bound to misfolded conformations of the Pet passenger domain, but it did not bind to the folded passenger domain or to the beta domain of Pet. Assays with an EAEC Delta virK mutant and its complemented version showed that, in the …

The Modern Hiv/Aids Epidemic And Human Rights In The United States: A Lens Into Lingering Gender, Race, And Health Disparities And Cutting Edge Approaches To Justice, Brook Kelly

University of Baltimore Law Review

No abstract provided.

Ectoparasites Of Bats In Mongolia, Part 2 (Ischnopsyllidae, Nycteribiidae, Cimicidae And Acari), Ingo Scheffler, Dietrich Dolch, Jargalsaikhan Ariunbold, Annegret Stubbe, Andreas Abraham, Klaus Thiele

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This study analyses ectoparasites found on Mongolian bats between 2008 and 2011. We examined 12 different bat species, with a total of 23 ectoparasite species present. Apart from reporting distributions, we also discuss specific host-parasite relationships. Owing to recent taxonomic changes splitting the Myotis mystacinus-group into several new taxa, their corresponding ectoparasite fauna could also be addressed in detail. Introducing ectoparasitic insects at length elsewhere (Scheffler et al. 2010), this paper focuses on the analysis of parasitic Acari. Additional findings for Spinturnicidae (wing mites) and Macronyssidae broadened the spectrum of known parasites. Altogether, the knowledge of bat ectoparasites from Mongolia …

Siphonaptera Of Mongolia And Tuva: Results Of The Mongolian- German Biological Expeditions Since 1962 – Years 1999-2003, Daniel Kiefer, Michael Stubbe, Annegret Stubbe, Scott Lyell Gardner, D. Tserenorov, R. Samiya, D. Otgonbaatar, D. Sumiya, Matthias S. Kiefer

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This report provides an overview of flea species and the corresponding hosts in Mongolia and Tuva during 1999-2003. The taxonomical development of this vector group of great medical importance covers more than a century of flea research in Mongolia, resulting in the current number of 162 species known from this area.

Analysis Of Illicit Drugs, Their Metabolites And Other Micropollutants In Water By Liquid Chromatography Tandem Mass Spectrometry, Deepika P. Panawennage

Dissertations

The goal of this project is to develop liquid chromatography tandem mass spectrometry (LC/MS/MS) methods for the analysis of different, novel micropollutants in waste water and natural water. Micropollutants are compounds that can exert adverse environmental and human health effects at low concentrations. Most of these compounds include personal care products and pharmaceuticals, such as antibiotics and controlled substances. In the first part of this study, we focused in the analysis of illicit drugs and drug metabolites because these analyses have the potential to serve as markers of drug abuse. We have detected over sixteen different illicit drugs and their …

Cell Biology Of Foxp3+ Regulatory T Cells, Mariko Takami

Dissertations

T cells play a central role in the immune response to fight against pathogens and orchestrate other immune cells. An overreactive immune response can lead to autoimmune diseases, therefore the immune system must possess negative regulation mechanisms. In the periphery, naturally arising regulatory T cells (nTregs) negatively regulate immune responses and play an important role in maintaining immune homeostasis. When antigens are present, conventional CD4+ T cells recognize their cognate antigen and proliferate. After pathogen clearance, expanded effector T cells eventually decline in number due to activation induced cell death (AICD) to terminate immune response. However, it is not understood …

Essential Nursing Resources, 26th Ed, Janet G. Schnall, Susan Fowler

Becker Library Publications and Presentations

No abstract provided.

2012 Ipm Annual Report—From Science To Solutions: Developing New Health Technologies For Women, International Partnership For Microbicides

International Partnership for Microbicides (IPM)

No abstract provided.

Population Briefs, Vol. 18, No. 1, Population Council

Population Briefs

IN THIS ISSUE: Population Council research defines broad benefits of family planning | Council-partnered family planning foundation significantly reduces risk of unintended pregnancy among poor women in the United States | Council research offers insights into meeting the health needs of vulnerable female sex workers | Council research improves HIV policy for male migrants in India

Changes To The Equine Hindgut Microflora In Response To Antibiotic Challenge, Brittany E. Harlow

Theses and Dissertations--Animal and Food Sciences

Antibiotics are important to equine medicine, but can cause detrimental side-effects including reduced feed intake, allergic reactions, and diarrhea. Antibiotic-associated diarrhea (AAD) is attributed to disruption of the hindgut microflora, permitting proliferation of pathogenic microbes. The objectives were to evaluate the effects of antibiotics on beneficial fecal bacteria, AAD-associated pathogens, microbial species richness and fermentation. Horses were assigned to treatment groups: control (no antibiotics, n=6), trimethoprim-sulfadiazine (oral, n=6), or sodium ceftiofur (IM, n=6). Fecal samples were taken during adaptation (3 wk), antibiotic challenge (1 wk), and withdrawal (1 wk). Fecal cellulolytics decreased by >99% during challenge and did not recover …

A Case Study On Assessing Balance In An Older Adult With Neurocom, Abigayle Gonzaga

Honors Capstones

Falling is the most common mechanism of injury as well as the leading cause of death from injury in people who are older than 65 years. This is a serious issue for the geriatric popu­ lation because the frequency in falls increases with age. This increase is due to the increased li­ kelihood of degenerative or infectious diseases, or the effects of injuries accumulated over time. Although falling has been a recurring problem from generation to generation, there is greater an­ ticipation of falls now that the baby boomer generation is transitioning into older adults. An awareness of the dangers …

Assessment Of Selected University Students' Knowledge Of Blood Donation And The Relationship With Intent To Donate Blood, Jeffrey Allerson

All Graduate Theses, Dissertations, and Other Capstone Projects

The lack of blood donors in the United States is a problem. The purpose of this study was to examine the relationship between blood donation knowledge and blood donation intentions among students at Minnesota State University, Mankato (MNSU), and examine blood donation attitude and confidence levels among the respondents. A researcher-constructed electronic survey was sent to 3, 944 MNSU students, with a total of 376 responses (n = 364; adjusted response rate = 9.23%). Analyses included descriptive statistics, independent sample t-tests, frequency counts, and Pearson product-moment correlation coefficient tests. The mean intention scores of current blood donors were higher than …

Understanding Viral Transmission Behavior Via Protein Intrinsic Disorder Prediction: Coronaviruses, Gerard Kian-Meng Goh, A. Keith Dunker, Vladimir N. Uversky

Molecular Medicine Faculty Publications

Besides being a common threat to farm animals and poultry, coronavirus (CoV) was responsible for the human severe acute respiratory syndrome (SARS) epidemic in 2002–4. However, many aspects of CoV behavior, including modes of its transmission, are yet to be fully understood. We show that the amount and the peculiarities of distribution of the protein intrinsic disorder in the viral shell can be used for the efficient analysis of the behavior and transmission modes of CoV. The proposed model allows categorization of the various CoVs by the peculiarities of disorder distribution in their membrane (M) and nucleocapsid (N). This categorization …

Siv Infection Induces Accumulation Of Plasmacytoid Dendritic Cells In The Gut Mucosa, R. Keith Reeves, Tristan I. Evans, Jacqueline Gillis, Fay E. Wong, Guobin Kang, Qingsheng Li, R. Paul Johnson

Nebraska Center for Virology: Faculty Publications

Multiple studies suggest that plasmacytoid dendritic cells (pDCs) are depleted and dysfunctional during human immunodeficiency virus/simian immunodeficiency virus (HIV/SIV) infection, but little is known about pDCs in the gut—the primary site of virus replication. Here, we show that during SIV infection, pDCs were reduced 3-fold in the circulation and significantly upregulated the gut-homing marker α4β7, but were increased 4-fold in rectal biopsies of infected compared to naive macaques. These data revise the understanding of pDC immunobiology during SIV infection, indicating that pDCs are not necessarily depleted, but instead may traffic to and accumulate in the gut mucosa.

Triticum Mosaic Poacevirus Enlists P1 Rather Than Hc-Pro To Suppress Rna Silencing-Mediated Host Defense, Satyanarayana Tatineni, Feng Qu, Ruhui Li, Thomas Jack Morris, Roy French

Nebraska Center for Virology: Faculty Publications

Triticum mosaic virus (TriMV) is the type species of the newly established Poacevirus genus in the family Potyviridae. In this study, we demonstrate that in contrast to the helper component- proteinase (HC-Pro) of Potyvirus species, the P1 proteins of TriMV and Sugarcane steak mosaic poacevirus function in suppression of RNA silencing (SRS). TriMV P1 effectively suppressed silencing induced by single- or double-stranded RNAs (ss/ds RNAs), and disrupted the systemic spread of silencing signals at a step after silencing signal production. Interestingly, contrary to enhanced SRS activity of potyviral HC-Pro by co-expression with P1, the presence of TriMV HC-Pro reduced …

Identification Of Molecular Determinants From Moloney Leukemia Virus 10 Homolog (Mov10) Protein For Virion Packaging And Anti-Hiv-1 Activity, Aierken Abudu, Xiaojun Wang, Ying Dang, Tao Zhou, Shi-Hua Xiang, Yong -Hui Zheng

Nebraska Center for Virology: Faculty Publications

Background: MOV₁₀ inhibits HIV-1 replication after being packaged.

Results: A Gag binding plus all but one of seven helicase domains are required for MOV^₁₀ packaging. Nearly all residues are required for anti-HIV-1 activity. Conclusion: Gag binding is not sufficient for MOV₁₀ packaging, and multiple discontinuous domains regulate MOV₁₀ activity.

Significance: These findings uncover a new packaging mechanism and provide new insights into MOV₁₀ antiviral activity.

Beyond Beyond The Border: A Proposal For Implementation Of The Action Plan's Recommendation On Cross-Border Critical Infrastructure, Michael C. Mcdaniel

Canada-United States Law Journal

No abstract provided.

An Ims/Atp Assay For The Detection Of Mycobacterium Tuberculosis In Urine, Dawn M. Hunter, Daniel V. Lim

Molecular Biosciences Faculty Publications

Background. Although sputum smears are the gold standard for diagnosis of tuberculosis, sensitivity in HIV/TB coinfection cases is low, indicating a need for alternative methods. Urine is being increasingly evaluated. Materials and Methods. A novel method for detecting Mycobacterium tuberculosis (MTB) in synthetic urine using a combined IMS/ATP assay was evaluated. Preliminary work established standard ATP conditions and the sensitivity and specificity of the MTB antibody. Eighty-four blinded samples in four replicate assays were evaluated for the presence of MTB using labeled immunomagnetic beads for capture. Beads were separated, washed, and resuspended in broth and added to a …

Research Week 2012, Linda Gardiner

Office of Research Institutional Research and Scholarship

No abstract provided.

Concerning The Department Of Public Safety, And, In Connection Therewith, Renaming And Reorganizing Certain Existing Entities, And Making And Reducing Appropriations., Colorado General Assembly

Session Laws 2001-Present

No abstract provided.

Continuous- And Discrete-Time Structured Malaria Models And Their Dynamics, Junliang Lu

Dissertations

No abstract provided.

Detection And Identification Of Salmonella Enterica, Escherichia Coli, And Shigella Spp. Via Pcr-Esi-Ms: Isolate Testing And Analysis Of Food Samples, Sarah E. Pierce, Rosalee S. Hellberg, Chorng-Ming Cheng, Kai-Shun Chen, Donna M. Williams-Hill, William B. Martin, Marc W. Allard

Food Science Faculty Articles and Research

An assay to identify the common food-borne pathogens Salmonella, Escherichia coli, Shigella, and Listeria monocytogenes was developed in collaboration with Ibis Biosciences (a division of Abbott Molecular) for the Plex-ID biosensor system, a platform that uses electrospray ionization mass spectroscopy (ESI-MS) to detect the base composition of short PCR amplicons. The new food-borne pathogen (FBP) plate has been experimentally designed using four gene segments for a total of eight amplicon targets. Initial work built a DNA base count database that contains more than 140 Salmonella enterica, 139 E. coli, 11 Shigella, and 36 Listeria patterns and 18 other Enterobacteriaceae organisms. …

All For One And One For All: Informed Consent And Public Health, Jessica Wilen Berg

Faculty Publications

The concept of informed consent is well established in the field of bioethics, but its application is unclear in the area of public health. The increasing prevalence of public health interventions creates a need to analyze the scope of government power as it relates to individual choice. This Article explores three different types of public health measures in which individual choice has been limited: (1) environmental interventions; (2) classic public health interventions to prevent contagious disease; and (3) public health information reporting or use. The reasons for limiting informed consent vary depending on the context, and the implications for the …

Balancing Privacy, Autonomy, And Scientific Needs In Electronic Health Records Research, Sharona Hoffman, Andy Podgurski

Faculty Publications

The ongoing transition from paper medical files to electronic health records will provide unprecedented amounts of data for biomedical research, with the potential to catalyze significant advances in medical knowledge. But this potential can be fully realized only if the data available to researchers is representative of the patient population as a whole. Thus, allowing individual patients to exclude their health information, in keeping with traditional notions of informed consent, may compromise the research enterprise and the medical benefits it produces.

This Article analyzes the tension between realizing societal benefits from medical research and granting individual preferences for privacy. It …

Medical Decision Making By And On Behalf Of Adolescents: Reconsidering First Principles, B. Jessie Hill

Faculty Publications

The school nurse cannot give your teenage daughter an aspirin for her headache without your permission, but that same daughter can get an abortion without even informing you. Or can she? The obligations on medical personnel providing care to adolescents are famously indeterminate.

Two common-law presumptions have long lurked in the background, but, far from elucidating matters, those presumptions have contributed to the state of confusion. The first presumption is that, absent any special rule, children lack the legal authority to consent to medical treatment on their own. A parallel and corresponding presumption is that parents have a legal entitlement …

Wsu Research News, Winter/Spring 2012, Office Of Research And Sponsored Programs, Wright State University

WSU Research News

A twenty-one page newsletter of the WSU Research News. The WSU Research News was published monthly beginning in June of 1968 and issued by the Office of Research Development. This newsletter was created to provide information to the WSU faculty about the availability of outside funds for research and educational programs, new developments that may affect availability of funds, and general information on research and educational activities at Wright State University.

Methicillin-Resistant Staphylococcus Aureus Infections In Human Immunodeficiency Virus-Infected Children And Adolescents, George K. Siberry, Toni Frederick, Patricia Emmanuel, Mary E. Paul, Beverly Bohannon, Travis Wheeling, Theresa Barton, Mobeen H. Rathore, Kenneth L. Dominguez

Pediatrics Faculty Publications

Background. Methicillin-resistant Staphylococcus aureus (MRSA) infection incidence has increased in healthy US children. Our objective was to evaluate MRSA incidence and correlates in HIV-infected youth. Methods. The CDC-sponsored LEGACY study is a US multicenter chart abstraction study of HIV-infected youth. We identified MRSA infections among participants with ≥1 visit during 2006. We used bivariate and multivariable analyses to compare sociodemographic and HIV clinical factors between MRSA cases and noncases. Results. Fourteen MRSA infections (1 invasive, 12 soft tissue, 1 indeterminate) occurred among 1,813 subjects (11.1 infections/1,000 patient-years (PY), 95% CI: 11.06–11.14). Most (86%) isolates were clindamycin susceptible. …

Legislating A Family-Friendly Workplace: Should It Be Done In The United States?, Marianne Delpo Kulow

Northwestern Journal of Law & Social Policy

This Article reviews both domestic and international efforts to legislate a more family-friendly workplace, with an eye toward measuring the impact of these various initiatives and predicting both their future success and the likelihood of more widespread adoption. In particular, the Article reviews federal, state, and international legislative efforts to mandate: paid parental leaves; paid sick days; and flexible work arrangements. The Article then attempts to measure the effectiveness of such legislatively required, family-friendly policies by suggesting ways to measure and to predict the impact of U.S. legislative efforts to reconcile the conflicting responsibilities of work and parenthood. The Article …

Horse Racing Regulatory Reform Through Constructive Engagement By Industry Stakeholders With State Regulators, Alexander M. Waldrop, Karl M. Nobert, John W. Polonis

Kentucky Journal of Equine, Agriculture, & Natural Resources Law

No abstract provided.

The Ontology For Parasite Lifecycle (Opl): Towards A Consistent Vocabulary Of Lifecycle Stages In Parasitic Organisms, Priti Parikh, Jie Zheng, Flora J. Logan-Klumpler, Christian J. Stoeckert, Pantelis Topalis, Anna Protasio, Amit P. Sheth, Mark Carrington, Matthew Berriman, Satya S. Sahoo

Kno.e.sis Publications

Background

Genome sequencing of many eukaryotic pathogens and the volume of data available on public resources have created a clear requirement for a consistent vocabulary to describe the range of developmental forms of parasites. Consistent labeling of experimental data and external data, in databases and the literature, is essential for integration, cross database comparison, and knowledge discovery. The primary objective of this work was to develop a dynamic and controlled vocabulary that can be used for various parasites. The paper describes the Ontology for Parasite Lifecycle (OPL) and discusses its application in parasite research.

Results

The OPL is based on …