Digital Commons Network^™

Promiscuous And Adaptable Enzymes Fill “Holes” In The Tetrahydrofolate Pathway In Chlamydia Species, Nancy E. Adams, Jennifer J. Thiaville, James Proestos, Ana L. Juárez-Vázquez, Andrea J. Mccoy, Francisco Barona-Gómez, Dirk Iwata-Reuyl, Valérie De Crécy-Lagard, Anthony T. Maurelli

Chemistry Faculty Publications and Presentations

Folates are tripartite molecules comprising pterin, para-aminobenzoate (PABA), and glutamate moieties, which are essential cofactors involved in DNA and amino acid synthesis. The obligately intracellular Chlamydia species have lost several biosynthetic pathways for essential nutrients which they can obtain from their host but have retained the capacity to synthesize folate. In most bacteria, synthesis of the pterin moiety of folate requires the FolEQBK enzymes, while synthesis of the PABA moiety is carried out by the PabABC enzymes. Bioinformatic analyses reveal that while members of Chlamydia are missing the genes for FolE (GTP cyclohydrolase) and FolQ, which catalyze the initial …

Bartonella Henselae Infection And Host Response In The Zebrafish Embryo Model, Amorce Lima

USF Tampa Graduate Theses and Dissertations

The Gram-negative bacterium Bartonella henselae (Bh) is an emerging zoonotic pathogen that has been associated with a variety of human diseases including bacillary angiomatosis which is characterized by vasoproliferative tumor-like lesions on the skin and internal organs of some immunosuppressed individuals. Several virulence factors associated with Bartonella-induced pathogenesis have been characterized. However, the study of those virulence factors has been limited to in vitro cell culture systems due to the lack of a practical animal model. Therefore, we wanted to investigate whether the zebrafish embryo (Danio rerio) could be used to model human infection with Bh. We investigated …

Democratizing Public Health: Citizen Empowerment Through The Biothriller Genre, Robert A. Deleo

Catalyst: A Social Justice Forum

Preparedness—the process of readying for emerging threats—is central to contemporary public health, which strives to anticipate potential problems instead of reacting to medical disasters. However, this concept resonates little outside of elite policymaker circles. Instead, many Americans assume policymaking is an inherently reactive process that rewards politicians for “fixing” existing problems. For example, while the prospect of a pandemic influenza outbreak represents one of American’s most pressing concerns, surveys report pervasive public ignorance about many aspects of preparedness and public health, including disease transmission, prevention practices, and the relationship between zoological and human diseases. For many Americans, it seems, exposure …

The Role Of Vitamin E In Human Health And Some Diseases, Saliha Rizvi, Syed T. Raza, Faizal Ahmad, Absar, Shania Abbas, Farzana Mahdi

Sultan Qaboos University Medical Journal

Vitamin E is the major lipid-soluble component in the cell antioxidant defence system and is exclusively obtained from the diet. It has numerous important roles within the body because of its antioxidant activity. Oxidation has been linked to numerous possible conditions and diseases, including cancer, ageing, arthritis and cataracts; vitamin E has been shown to be effective against these. Platelet hyperaggregation, which can lead to atherosclerosis, may also be prevented by vitamin E; additionally, it also helps to reduce the production of prostaglandins such as thromboxane, which cause platelet clumping. The current literature review discusses the functions and roles of …

Primary School Managers’ Knowledge Of And Attitude Towards Epilepsy Among Children In Erbil City, Iraq, Salih A. Abdulla

Sultan Qaboos University Medical Journal

Objectives: This study aimed to determine the knowledge and attitudes of primary school managers regarding epilepsy among school children in Erbil City, Iraq. Methods: A cross-sectional study was conducted in primary schools between 18 June and 18 August 2013. A total of 80 primary school managers were selected to answer a questionnaire covering three domains: socio-demographical characteristics, knowledge of epilepsy and attitudes towards epilepsy. Results: More than half of the participants (55%) had spent less than 10 years in school administration. More than one-third (37.5%) of the participants believed that epilepsy was an infectious disease, and over half of the …

Advanced General Medicine Conference The Royal College Of Physicians (London), The Ministry Of Health (Oman) And Sultan Qaboos University Sultan Qaboos University, 29–30 January 2014, Sultan Qaboos University

Sultan Qaboos University Medical Journal

No abstract provided.

Clinical Implication Of Changes In Serum Adiponectin In Patients With Hepatogenic Diabetes, Zhongying Bao, Xiaodong Yuan, Shuhong Duan, Xiaoqun Dong

Biomedical and Pharmaceutical Sciences Faculty Publications

Adiponectin is a protein hormone that modulates glucose metabolism and fatty acid oxidation. Weexplored the clinical implication of serum adiponectin in hepatogenic diabetes. Serum adiponectin levels were determined using enzyme–linked immunochemistry assay in 78 individuals including 19 hepatogenic diabetes, 20 type 2 diabetes (T2D), 20 chronic liver disease and 19 healthy controls. Cases and controls were matched by gender and body mass index (BMI). There is no difference in serum adiponectin levels among hepatogenic diabetic, T2D and healthy control groups. The levels of adiponectin are highest in chronic liver disease and lowest in T2D. Insulin levels are highest in hepatic …

Will Hiv Vaccination Reshape Hiv Risk Behavior Networks? A Social Network Analysis Of Drug Users' Anticipated Risk Compensation, April M. Young, Daniel S. Halgin, Ralph J. Diclemente, Claire E. Sterk, Jennifer R. Havens

Epidemiology and Environmental Health Faculty Publications

Background

An HIV vaccine could substantially impact the epidemic. However, risk compensation (RC), or post-vaccination increase in risk behavior, could present a major challenge. The methodology used in previous studies of risk compensation has been almost exclusively individual-level in focus, and has not explored how increased risk behavior could affect the connectivity of risk networks. This study examined the impact of anticipated HIV vaccine-related RC on the structure of high-risk drug users' sexual and injection risk network.

Methods

A sample of 433 rural drug users in the US provided data on their risk relationships (i.e., those involving recent unprotected sex …

Searching For Superspreaders Of Information In Real-World Social Media, Sen Pei, Lev Muchnik, José S. Andrade, Jr., Zhiming Zheng, Hernán A. Makse

Publications and Research

A number of predictors have been suggested to detect the most influential spreaders of information in online social media across various domains such as Twitter or Facebook. In particular, degree, PageRank, k-core and other centralities have been adopted to rank the spreading capability of users in information dissemination media. So far, validation of the proposed predictors has been done by simulating the spreading dynamics rather than following real information flow in social networks. Consequently, only model-dependent contradictory results have been achieved so far for the best predictor. Here, we address this issue directly. We search for influential spreaders by following …

Borreliabase: A Phylogeny-Centered Browser Of Borrelia Genomes, Lia Di, Pedro E. Pagan, Daniel Packer, Che L. Martin, Saymon Akther, Girish Ramrattan, Emmanuel F. Mongodin, Claire M. Fraser, Steven E. Schutzer, Benjamin J. Luft, Sherwood R. Casjens, Wei-Gang Qiu

Publications and Research

Background The bacterial genus Borrelia (phylum Spirochaetes) consists of two groups of pathogens represented respectively by B. burgdorferi, the agent of Lyme borreliosis, and B. hermsii, the agent of tick-borne relapsing fever. The number of publicly available Borrelia genomic sequences is growing rapidly with the discovery and sequencing of Borrelia strains worldwide. There is however a lack of dedicated online databases to facilitate comparative analyses of Borrelia genomes. Description We have developed BorreliaBase, an online database for comparative browsing of Borrelia genomes. The database is currently populated with sequences from 35 genomes of eight Lyme-borreliosis (LB) group Borrelia species and …

Metabolomics Analysis Identifies Intestinal Microbiota-Derived Biomarkers Of Colonization Resistance In Clindamycin-Treated Mice, Robin L.P. Jump, Myreen Tomas, Abhishek Deshpande, Curtis J. Donskey

Faculty Scholarship

Background: The intestinal microbiota protect the host against enteric pathogens through a defense mechanism termed colonization resistance. Antibiotics excreted into the intestinal tract may disrupt colonization resistance and alter normal metabolic functions of the microbiota. We used a mouse model to test the hypothesis that alterations in levels of bacterial metabolites in fecal specimens could provide useful biomarkers indicating disrupted or intact colonization resistance after antibiotic treatment. Methods: To assess in vivo colonization resistance, mice were challenged with oral vancomycin-resistant Enterococcus or Clostridium difficile spores at varying time points after treatment with the lincosamide antibiotic clindamycin. For concurrent groups of …

Clinic Connection: 2014, Centracare Clinic

Clinic Connection

• President’s Message: "Engaging our communities in times of scarce resources"

Don’T Diss The Reninjaza: A Case For Integrating Traditional Birthing Attendants Into The Allopathic System To Improve Prenatal Health In Rural Madagascar, Shenna Bannish

Independent Study Project (ISP) Collection

This project seeks to prove the practicality of using Reninjazas (traditional birthing attendants) in rural Madagascar to better prenatal care and diminish the maternal and infant mortality rates in this country. Prenatal care is of vital importance to expecting mothers. Without it, birth defects, complicated labor and delivery, miscommunications concerning fetal development, and even death can occur (Mayo Clinic, 2014). There is no doubt that the lack of adequate prenatal care in Madagascar contributes to its unfortunately high maternal and infant death statistics. While listed as “moderate” in terms of severity, the maternal and infant mortality rates in Madagascar are …

Checkup, Lehigh Valley Health Network

Checkup

No abstract provided.

Progress Notes, Lehigh Valley Health Network

Progress Notes

No abstract provided.

Better Medicine, Lehigh Valley Health Network

Better Medicine

No abstract provided.

Epidemiology Of Coccidioidomycosis In Missouri, Ravi Kumar Aggu Sher

Open Access Theses

Introduction. Incidence of Coccidioidomycosis has been increasing nationally, from 2,271 cases in 1998 to 17,802 cases in 2012. Missouri is not endemic to Coccidioidomycosis but the incidence has been increasing since becoming reportable in 2003. To describe epidemiology of Coccidioidomycosis in Missouri we conducted a retrospective review of surveillance data at Missouri Department of Health & Senior Services (DHSS) for the years, 2004-2013.

Methods. Data was obtained from Missouri Health Surveillance Information System (WebSurv), the statewide reporting system for notifiable diseases. All cases that were "Confirmed" were included in the study.

Results. There were a total of 93 confirmed cases …

Vol. 39, No. 2: Summer 2014, School Of Medicine & Health Sciences

North Dakota Medicine Archive

No abstract provided.

Aquastella Gen. Nov.: A New Genus Of Saprolegniaceous Oomycete Rotifer Parasites Related To Aphanomyces, With Unique Sporangial Outgrowths, Daniel P. Molloy, Sally L. Glockling, Clifford A. Siegfried, Gordon W. Beakes, Timothy Y. James, Sergey E. Mastitsky, Elizabeth S. Wurdak, Laure Giamberini, Michael J. Gaylo, Michael J. Nemeth

Biology Faculty Publications

The oomycete genus Aquastella is described to accommodate two new species of parasites of rotifers observed in Brooktrout Lake, New York State, USA. Three rotifer species – Keratella taurocephala,Polyarthra vulgaris, and Ploesoma truncatum – were infected, and this is the first report of oomycete infection in these species. Aquastella attenuata was specific to K. taurocephala and Aquastella aciculariswas specific to P. vulgaris and P. truncatum. The occurrence of infections correlated with peak host population densities and rotifers were infected in the upper layers of the water column. Sequencing of 18S rRNA and phylogenetic analysis of …

The Search, The Jackson Laboratory

Search Magazine

No abstract provided.

Effect Of Chemotherapy On The Microbiota And Metabolome Of Human Milk: A Case Report, Camilla Urbaniak, Amy Mcmillan, Michelle Angelini, Gregory B Gloor, Mark Sumarah, Jeremy P Burton, Gregor Reid

Microbiology & Immunology Publications

BACKGROUND: Human milk is an important source of bacteria for the developing infant and has been shown to influence the bacterial composition of the neonatal gut, which in turn can affect disease risk later in life. Human milk is also an important source of nutrients, influencing bacterial composition but also directly affecting the host. While recent studies have emphasized the adverse effects of antibiotic therapy on the infant microbiota, the effects of maternal chemotherapy have not been previously studied. Here we report the effects of drug administration on the microbiota and metabolome of human milk.

METHODS: Mature milk was collected …

American Society Of Parasitologists Newsletter, V. 36, Nos. 1-2, Spring-Summer 2014, Scott Lyell Gardner

American Society of Parasitologists: Newsletter

Includes editor's note and contents, a report to the ASP by President Janovy, information about a new parasitology book, a report of the ASP Meeting in New Orleans, information about the transfer of the U.S. National Parasite Collection from the Agricultural Research Service to the Smithsonian Institution, and a list of credits and ASP Affiliates.

2013-2014 - Graduate Council Annual Report, College Of Graduate And Continuing Studies, East Tennessee State University

Graduate Council Agendas and Minutes

No abstract provided.

Impact Of Peak/Mid Luteal Estradiol On Pregnancy Outcome After Intracytoplasmic Sperm Injection, Rehana Rehman, Zahir Hussain, Huma Zahir, Rakhshaan Khan

Department of Biological & Biomedical Sciences

Abstract

Objective: To compare peak to mid estradiol ratio with the probability of successful conception after intracytoplasmic

sperm injection.

Method: The quasi-experimental study was conducted in an infertility clinic at Islamabad from June 2010 till August

2011, and comprised couples subjected to intra-cytoplasmic sperm injection. Down-regulation of ovaries was

followed by calculated stimulation, ovulation induction, oocytes retrieval, intra cytoplasmic sperm injection, in vitro

maturation of embryos and finally blastocysts transfer. Serum estradiol was measured by enzyme-linked

immunosorbent assay on ovulation induction day and the day of embryo transfer. Failure of procedure was detected

by beta human chorionic gonadotropin5-25mIU/ml (Group I; …

Expanding The Scope And Relevance Of Health Interventions: Moving Beyond Clinical Trials And Behavior Change Models, Khary K. Rigg, Hilary H. Cook, John W. Murphy

Mental Health Law & Policy Faculty Publications

An overemphasis on clinical trials and behavior change models has narrowed the knowledge base that can be used to design interventions. The overarching point is that the process of overanalyzing variables is impeding the process of gaining insight into the everyday experiences that shape how people define health and seek treatment. This claim is especially important to health decision-making and behavior change because subtle interpretations often influence the decisions that people make. This manuscript provides a critique of traditional approaches to developing health interventions, and theoretically justifies what and why changes are warranted. The limited scope of these models is …

A Layperson's Guide To Fair Housing Law (2014), F. Willis Caruso, Michael P. Seng, Allison Bethel, John Marshall Law School Fair Housing Legal Support Center

Faculty White Papers

Housing discrimination can take many forms. Laws have been passed at the federal, state, and local levels to prohibit housing discrimination, and attorneys and many fair housing groups are working to eradicate the problem. But the solution to the fair housing problem will not come solely through the work of attorneys and fair housing agencies and organizations; it will also have to come from an educated public that is unwilling to tolerate the cost of housing discrimination. Housing discrimination affects every individual in the United States. Realtors and brokers, bankers and mortgage lenders, insurance companies and developers, real estate buyers …

Multipolarity, Intellectual Property And The Internationalization Of Public Health Law, Sam F. Halabi

Faculty Publications

This Article critically examines the proliferation of international legal agreements addressing global health threats like the outbreak of infectious diseases, tobacco use and lack of access to affordable medicines. The conventional wisdom behind this trend is that a global normative shift has occurred which has caused states to regard health as “special” and less subject to the normal rules of international law making because health threats endanger all of humanity. This Article challenges that thesis, arguing that at the same time the number and scope of international health law treaties has grown, developed states have subordinated health law to intellectual …

Knowledge, Attitude And Perceptions About Tetanus And Rabies Among Family Physicians; Results Of A Survey At A Teaching Hospital In Karachi, Pakistan, Siddiqui Sj, Jehan F, Awan S S, Mohammad Wasay

Pakistan Journal of Neurological Sciences (PJNS)

To assess the knowledge, attitude and perception among family physicians about tetanus and rabies. Setting: This study was conducted at the International Family Physicians Conference held at the Aga Khan University. Method: It was a cross sectional study of convenient sampling. The participants were asked to fill a pre-tested questionnaire comprising of 26 questions. Both open and close ended questions were included. A total of 111 doctors fulfilling the inclusion criteria filled in the questionnaire.Result: Out of 111 doctors who participated in this study, vast majority were working in the urban area (86.5%). 59.5% had not seen a case of …

Evaluation Of Eight Live Attenuated Vaccine Candidates For Protection Against Challenge With Virulent Mycobacterium Avium Subspecies Paratuberclosis In Mice, John Bannantine, Jamie L. Everman, Sasha J. J.Rose, Lmar Babrak, Robab Katani, Raul G. Barletta, Adel M. Talaat, Yrjö J. Gröhn, Yung-Fu Chang, Vivek Kapur, Luiz E. Bermudez

School of Veterinary and Biomedical Sciences: Faculty Publications

Johne's disease is caused by Mycobacterium avium subsp. paratuberculosis (MAP), which results in serious economic losses worldwide in farmed livestock such as cattle, sheep, and goats. To control this disease, an effective vaccine with minimal adverse effects is needed. In order to identify a live vaccine for Johne's disease, we evaluated eight attenuated mutant strains of MAP using a C57BL/6 mouse model. The persistaence of the vaccine candidates was measured at 6, 12, and 18 weeks post vaccination. Only strains 320, 321, and 329 colonized both the liver and spleens up until the 12-week time point. The remaining five mutants …

Population And Metapopulation Ecology Of Childhood Diseases, Christian E. Gunning

Biology ETDs

Researchers have long used mathematical models and empirical data to explore the population ecology of childhood diseases such as measles and whooping cough. These diseases have proven ideal model systems for studying population dynamics over space and time. Here we present a novel dataset of weekly measles and whooping cough case reports in pre-vaccine era U.S. cities and states, along with a previously- studied dataset of measles in England & Wales. We first estimate per-population disease reporting probabilities. We find that disease reporting is highly variable over space and between diseases, and correlated with socioeconomic covariates including ethnic composition and …