Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Medicine and Health Sciences (2664)
- Medical Specialties (1501)
- Medical Sciences (1210)
- Life Sciences (645)
- Public Health (633)
-
- Diseases (396)
- Biomedical Informatics (390)
- Oncology (388)
- Bioinformatics (356)
- Pediatrics (309)
- Infectious Disease (265)
- Medical Genetics (244)
- Immunology and Infectious Disease (194)
- Epidemiology (190)
- COVID-19 (180)
- Genetic Phenomena (180)
- Internal Medicine (127)
- Medical Immunology (121)
- Immunotherapy (111)
- Biological Phenomena, Cell Phenomena, and Immunity (100)
- Medical Microbiology (98)
- Pathology (79)
- Social and Behavioral Sciences (78)
- Health Services Research (77)
- Clinical Epidemiology (76)
- Gastroenterology (72)
- Medical Molecular Biology (62)
- Digestive System Diseases (58)
- Mental and Social Health (58)
- Microbiology (58)
- Institution
-
- The Texas Medical Center Library (1405)
- Washington University School of Medicine (599)
- Thomas Jefferson University (247)
- Children's Mercy Kansas City (177)
- University of Nebraska Medical Center (121)
-
- University of Kentucky (92)
- University of New Mexico (80)
- Dartmouth College (67)
- Henry Ford Health (51)
- The Jackson Laboratory (37)
- Himmelfarb Health Sciences Library, The George Washington University (25)
- University of South Carolina (23)
- Providence (22)
- OhioHealth (21)
- University of Plymouth (19)
- Old Dominion University (16)
- University of South Florida (15)
- Rowan University (14)
- Dominican University of California (9)
- Touro College and University System (9)
- University of the Pacific (6)
- Philadelphia College of Osteopathic Medicine (5)
- University of Malaya (5)
- Parkview Health (4)
- Edith Cowan University (3)
- International Centre of Insect Physiology and Ecology (3)
- University of Nebraska - Lincoln (3)
- Western University (3)
- Wright State University (3)
- Zucker School of Medicine at Hofstra/Northwell (3)
- Publication Year
- Publication
-
- Faculty, Staff and Student Publications (751)
- Faculty, Staff and Students Publications (574)
- 2020-Current year OA Pubs (462)
- Manuscripts, Articles, Book Chapters and Other Papers (177)
- Open Access Publications (131)
-
- Journal Articles: Epidemiology (90)
- Dartmouth Scholarship (67)
- Pathology Research and Scholarship (44)
- Center for Medical Ethics and Health Policy Staff Publications (30)
- Department of Medicine Faculty Papers (28)
- Articles, Abstracts, and Reports (22)
- Faculty Publications (22)
- Department of Microbiology and Immunology Faculty Papers (21)
- College of Population Health Faculty Papers (19)
- Project ECHO Bibliography (19)
- Kimmel Cancer Center Faculty Papers (18)
- Department of Emergency Medicine Faculty Papers (16)
- Pediatrics Research and Scholarship (16)
- Department of Obstetrics and Gynecology Faculty Papers (15)
- Department of Medical Oncology Faculty Papers (13)
- Infectious Diseases Articles (11)
- Journal Articles: Infectious Diseases (11)
- Microbiology, Immunology, and Molecular Genetics Faculty Publications (11)
- Children’s Nutrition Research Center Staff Publications (10)
- Faculty Research 2024 (10)
- Internal Medicine Faculty Publications (10)
- All publications (9)
- Center on Aging Staff Publications (9)
- Medicine Faculty Publications (9)
- Public Health Sciences Articles (9)
- Publication Type
- File Type
Articles 3031 - 3060 of 3110
Full-Text Articles in Entire DC Network
The Uses Of Rickets: Race, Technology, And The Politics Of Preventive Medicine In The Early Twentieth Century, M. Allison Arwady
The Uses Of Rickets: Race, Technology, And The Politics Of Preventive Medicine In The Early Twentieth Century, M. Allison Arwady
Yale Medicine Thesis Digital Library
Rickets, the bone disease classically caused by Vitamin D deficiency, was one of the most common diseases of children 100 years ago. It has been recognized as a disease of urban living and linked to issues of race and culture for generations. This paper uses unpublished patient records from 1904 to 1909 and archival and published materials from multiple community-based trials, including the New Haven Rickets Study (1923-1926), to explore how the definition, diagnosis, and treatment of rickets shifted in the first decades of the twentieth century in the United States. Before 1910, as evidenced by patient records, neither the …
Foreign-Body Reaction Mimicking Postneurosurgical Infection After Cranioplasty, David Brett-Major, Sean M. Baraniak, Jonathan E. Gilhooly, Rebecca L. Christensen, Gerald T. Grant, Rocco A. Armonda, Anuradha Ganesan
Foreign-Body Reaction Mimicking Postneurosurgical Infection After Cranioplasty, David Brett-Major, Sean M. Baraniak, Jonathan E. Gilhooly, Rebecca L. Christensen, Gerald T. Grant, Rocco A. Armonda, Anuradha Ganesan
Journal Articles: Epidemiology
The case of a 57-year-old woman who suffered a fall is presented. After a polymethyl malacrylate revision cranioplasty, she presented with signs, symptoms, and intraoperative findings consistent with postneurosurgical infection. Dural foreign-body reaction was diagnosed, and parenteral antibiotic therapy was discontinued successfully.
A Comprehensive Analysis Of The Naturally Occurring Polymorphisms In Hiv-1 Vpr: Potential Impact On Ctl Epitopes., Alagarsamy Srinivasan, Velpandi Ayyavoo, Sundarasamy Mahalingam, Aarthi Kannan, Anne Boyd, Debduti Datta, Vaniambadi S Kalyanaraman, Anthony Cristillo, Ronald G Collman, Nelly Morellet, Bassel E Sawaya, Ramachandran Murali
A Comprehensive Analysis Of The Naturally Occurring Polymorphisms In Hiv-1 Vpr: Potential Impact On Ctl Epitopes., Alagarsamy Srinivasan, Velpandi Ayyavoo, Sundarasamy Mahalingam, Aarthi Kannan, Anne Boyd, Debduti Datta, Vaniambadi S Kalyanaraman, Anthony Cristillo, Ronald G Collman, Nelly Morellet, Bassel E Sawaya, Ramachandran Murali
Department of Microbiology and Immunology Faculty Papers
The enormous genetic variability reported in HIV-1 has posed problems in the treatment of infected individuals. This is evident in the form of HIV-1 resistant to antiviral agents, neutralizing antibodies and cytotoxic T lymphocytes (CTLs) involving multiple viral gene products. Based on this, it has been suggested that a comprehensive analysis of the polymorphisms in HIV proteins is of value for understanding the virus transmission and pathogenesis as well as for the efforts towards developing anti-viral therapeutics and vaccines. This study, for the first time, describes an in-depth analysis of genetic variation in Vpr using information from global HIV-1 isolates …
Topical Application Of Entry Inhibitors As "Virustats" To Prevent Sexual Transmission Of Hiv Infection., Michael M Lederman, Robin Jump, Heather A Pilch-Cooper, Michael Root, Scott F Sieg
Topical Application Of Entry Inhibitors As "Virustats" To Prevent Sexual Transmission Of Hiv Infection., Michael M Lederman, Robin Jump, Heather A Pilch-Cooper, Michael Root, Scott F Sieg
Kimmel Cancer Center Faculty Papers
With the continuing march of the AIDS epidemic and little hope for an effective vaccine in the near future, work to develop a topical strategy to prevent HIV infection is increasingly important. This stated, the track record of large scale "microbicide" trials has been disappointing with nonspecific inhibitors either failing to protect women from infection or even increasing HIV acquisition. Newer strategies that target directly the elements needed for viral entry into cells have shown promise in non-human primate models of HIV transmission and as these agents have not yet been broadly introduced in regions of highest HIV prevalence, they …
Evidence That The Nijmegen Breakage Syndrome Protein, An Early Sensor Of Double-Strand Dna Breaks (Dsb), Is Involved In Hiv-1 Post-Integration Repair By Recruiting The Ataxia Telangiectasia-Mutated Kinase In A Process Similar To, But Distinct From, Cellular Dsb Repair., Johanna A Smith, Feng-Xiang Wang, Hui Zhang, Kou-Juey Wu, Kevin Jon Williams, René Daniel
Evidence That The Nijmegen Breakage Syndrome Protein, An Early Sensor Of Double-Strand Dna Breaks (Dsb), Is Involved In Hiv-1 Post-Integration Repair By Recruiting The Ataxia Telangiectasia-Mutated Kinase In A Process Similar To, But Distinct From, Cellular Dsb Repair., Johanna A Smith, Feng-Xiang Wang, Hui Zhang, Kou-Juey Wu, Kevin Jon Williams, René Daniel
Kimmel Cancer Center Faculty Papers
Retroviral transduction involves integrase-dependent linkage of viral and host DNA that leaves an intermediate that requires post-integration repair (PIR). We and others proposed that PIR hijacks the host cell double-strand DNA break (DSB) repair pathways. Nevertheless, the geometry of retroviral DNA integration differs considerably from that of DSB repair and so the precise role of host-cell mechanisms in PIR remains unclear. In the current study, we found that the Nijmegen breakage syndrome 1 protein (NBS1), an early sensor of DSBs, associates with HIV-1 DNA, recruits the ataxia telangiectasia-mutated (ATM) kinase, promotes stable retroviral transduction, mediates efficient integration of viral DNA …
Hiv-1 Tat Protein Alter The Tight Junction Integrity And Function Of Retinal Pigment Epithelium: An In Vitro Study., Ling Bai, Zhenping Zhang, Hui Zhang, Xiumei Li, Qiurong Yu, Haotian Lin, Wenhui Yang
Hiv-1 Tat Protein Alter The Tight Junction Integrity And Function Of Retinal Pigment Epithelium: An In Vitro Study., Ling Bai, Zhenping Zhang, Hui Zhang, Xiumei Li, Qiurong Yu, Haotian Lin, Wenhui Yang
Department of Medicine Faculty Papers
BACKGROUND: How HIV-1 enter into the eyes remains obscure. We postulated that HIV-1 Tat protein can alter the expression of specific tight-junction proteins and disturb the blood retinal barrier, and contributes to HIV trafficking into the eyes. This study is to determine the effects of HIV-1 Tat proteins on the barrier function and tight-junction protein expression of retinal pigment epithelial cell (RPE). METHODS: A human RPE cell line (D407) cultured on microporous filter-supports was used. After treating with HIV-1 Tat protein, transepithelial electrical resistance (TER) of confluent RPE cells was measured by epithelial voltmeter. The permeability of the RPE cells …
Direct Inhibition Of Cdk9 Blocks Hiv-1 Replication Without Preventing T Cell Activation In Primary Human Peripheral Blood Lymphocytes, Dominic Salerno, Muneer G Hasham, Renee Marshall Demarest, Judit Garriga, Alexander Y Tsygankov, Xavier Graña
Direct Inhibition Of Cdk9 Blocks Hiv-1 Replication Without Preventing T Cell Activation In Primary Human Peripheral Blood Lymphocytes, Dominic Salerno, Muneer G Hasham, Renee Marshall Demarest, Judit Garriga, Alexander Y Tsygankov, Xavier Graña
Rowan-Virtua School of Osteopathic Medicine Departmental Research
HIV-1 transcription is essential for the virus replication cycle. HIV-1 Tat is a viral transactivator that strongly stimulates the processivity of RNA polymerase II (RNAPII) via recruitment of the cyclin T1/CDK9 positive transcription elongation factor, which phosphorylates the C-terminal domain (CTD) of RNAPII. Consistently, HIV-1 replication in transformed cells is very sensitive to direct CDK9 inhibition. Thus, CDK9 could be a potential target for anti-HIV-1 therapy. A clearer understanding of the requirements for CDK9 activity in primary human T cells is needed to assess whether the CDK9-dependent step in HIV-1 transcription can be targeted clinically. We have investigated the effects …
Micro Rna 145 Targets The Insulin Receptor Substrate-1 And Inhibits The Growth Of Colon Cancer Cells, Bin Shi, Laura Sepp-Lorenzino, Marco Prisco, Peter Linsley, Tiziana Deangelis, Renato Baserga
Micro Rna 145 Targets The Insulin Receptor Substrate-1 And Inhibits The Growth Of Colon Cancer Cells, Bin Shi, Laura Sepp-Lorenzino, Marco Prisco, Peter Linsley, Tiziana Deangelis, Renato Baserga
Department of Cancer Biology Faculty Papers
The insulin receptor substrate-1 (IRS-1), a docking protein for both the type 1 insulin-like growth factor receptor (IGF-IR) and the insulin receptor, is known to send a mitogenic, anti-apoptotic, and anti-differentiation signal. Several micro RNAs (miRs) are suggested by the data base as possible candidates for targeting IRS-1. We show here that one of the miRs predicted by the data base, miR145, whether transfected as a synthetic oligonucleotide or expressed from a plasmid, causes down-regulation of IRS-1 in human colon cancer cells. IRS-1 mRNA is not decreased by miR145, while it is down-regulated by an siRNA targeting IRS-1. Targeting of …
The Kentucky Plan Revisited: Lessons Learned From An Innovative Doctoral Education Program., Joel M. Lee, F. Douglas Scutchfield, Raymond Hill
The Kentucky Plan Revisited: Lessons Learned From An Innovative Doctoral Education Program., Joel M. Lee, F. Douglas Scutchfield, Raymond Hill
Preventive Medicine and Environmental Health Faculty Publications
In the first doctoral education special issue of the Journal of Health Administration Education, the authors presented the University of Kentucky College of Public Health's plans for an innovative new Doctor of Public Health (Dr. P.H.) degree. The degree as designed, prepares graduates for professional practice, and included extensive supervised field experience as part of the academic training linking theory with practice. Based upon the interest that the Kentucky Dr.P.H. degree program received, the authors will share the experience of the degree's initial years of operation through a "lessons learned" paper. As the program evolved there have been many lessons …
Epstein-Barr Virus Infection Of Langerhans Cell Precursors As A Mechanism Of Oral Epithelial Entry, Persistence, And Reactivation, Dennis M. Walling, Autumn J. Ray, Joan E. Nichols, Catherine M. Flaitz, C. Mark Nichols
Epstein-Barr Virus Infection Of Langerhans Cell Precursors As A Mechanism Of Oral Epithelial Entry, Persistence, And Reactivation, Dennis M. Walling, Autumn J. Ray, Joan E. Nichols, Catherine M. Flaitz, C. Mark Nichols
Faculty, Staff and Student Publications
Epstein-Barr virus (EBV) is a ubiquitous human herpesvirus associated with many malignant and nonmalignant human diseases. Life-long latent EBV persistence occurs in blood-borne B lymphocytes, while EBV intermittently productively replicates in mucosal epithelia. Although several models have previously been proposed, the mechanism of EBV transition between these two reservoirs of infection has not been determined. In this study, we present the first evidence demonstrating that EBV latently infects a unique subset of blood-borne mononuclear cells that are direct precursors to Langerhans cells and that EBV both latently and productively infects oral epithelium-resident cells that are likely Langerhans cells. These data …
Azithromycin In The Extremely Low Birth Weight Infant For The Prevention Of Bronchopulmonary Dysplasia: A Pilot Study, Hubert O. Ballard, Michael I. Anstead, Lori A. Shook
Azithromycin In The Extremely Low Birth Weight Infant For The Prevention Of Bronchopulmonary Dysplasia: A Pilot Study, Hubert O. Ballard, Michael I. Anstead, Lori A. Shook
Pediatrics Faculty Publications
BACKGROUND: Azithromycin reduces the severity of illness in patients with inflammatory lung disease such as cystic fibrosis and diffuse panbronchiolitis. Bronchopulmonary dysplasia (BPD) is a pulmonary disorder which causes significant morbidity and mortality in premature infants. BPD is pathologically characterized by inflammation, fibrosis and impaired alveolar development. The purpose of this study was to obtain pilot data on the effectiveness and safety of prophylactic azithromycin in reducing the incidence and severity of BPD in an extremely low birth weight (< or = 1000 grams) population.
METHODS: Infants < or = 1000 g birth weight admitted to the University of Kentucky Neonatal Intensive Care Unit (level III, regional referral center) from 9/1/02-6/30/03 were eligible for this pilot study. The pilot study was double-blinded, randomized, and placebo-controlled. Infants were randomized to treatment or placebo within 12 hours of beginning mechanical ventilation (IMV) and within 72 hours of birth. The treatment group received azithromycin 10 mg/kg/day for 7 days followed by 5 mg/kg/day for the duration of the study. Azithromycin or placebo was continued until the infant no longer required IMV or supplemental oxygen, to a maximum of 6 weeks. Primary endpoints were incidence of BPD as defined by oxygen requirement at 36 weeks gestation, post-natal steroid use, days of IMV, and mortality. Data was analyzed by intention to treat using Chi-square and ANOVA.
RESULTS: A total of 43 extremely premature infants were enrolled in this pilot study. Mean gestational age and …
The Flagellum Of Pseudomonas Aeruginosa Is Required For Resistance To Clearance By Surfactant Protein A, Shiping Zhang, Francis X. Mccormack, Roger C. Levesque, George A. O'Toole, Gee W. Lau
The Flagellum Of Pseudomonas Aeruginosa Is Required For Resistance To Clearance By Surfactant Protein A, Shiping Zhang, Francis X. Mccormack, Roger C. Levesque, George A. O'Toole, Gee W. Lau
Dartmouth Scholarship
Surfactant protein A (SP-A) is an important lung innate immune protein that kills microbial pathogens by opsonization and membrane permeabilization. We investigated the basis of SP-A-mediated pulmonary clearance of Pseudomonas aeruginosa using genetically-engineered SP-A mice and a library of signature-tagged P. aeruginosa mutants. A mutant with an insertion into flgE, the gene that encodes flagellar hook protein, was preferentially cleared by the SP-A(+/+) mice, but survived in the SP-A(-/-) mice. Opsonization by SP-A did not play a role in flgE clearance. However, exposure to SP-A directly permeabilized and killed the flgE mutant, but not the wild-type parental strain. P. aeruginosa …
Importance Of The Ebp (Endocarditis- And Biofilm-Associated Pilus) Locus In The Pathogenesis Of Enterococcus Faecalis Ascending Urinary Tract Infection, Kavindra V Singh, Sreedhar R Nallapareddy, Barbara E Murray
Importance Of The Ebp (Endocarditis- And Biofilm-Associated Pilus) Locus In The Pathogenesis Of Enterococcus Faecalis Ascending Urinary Tract Infection, Kavindra V Singh, Sreedhar R Nallapareddy, Barbara E Murray
Faculty, Staff and Student Publications
BACKGROUND: We recently demonstrated that the ubiquitous Enterococcus faecalis ebp (endocarditis- and biofilm-associated pilus) operon is important for biofilm formation and experimental endocarditis. Here, we assess its role in murine urinary tract infection (UTI) by use of wild-type E. faecalis OG1RF and its nonpiliated, ebpA allelic replacement mutant (TX5475).
METHODS: OG1RF and TX5475 were administered transurethrally either at an ~1 : 1 ratio (competition assay) or individually (monoinfection). Kidney pairs and urinary bladders were cultured 48 h after infection. These strains were also tested in a peritonitis model.
RESULTS: No differences were observed in the peritonitis model. In mixed UTIs, …
Acquisition Of A Natural Resistance Gene Renders A Clinical Strain Of Methicillin-Resistant Staphylococcus Aureus Resistant To The Synthetic Antibiotic Linezolid, Seok-Ming Toh, Liqun Xiong, Cesar A Arias, Maria V Villegas, Karen Lolans, John Quinn, Alexander S Mankin
Acquisition Of A Natural Resistance Gene Renders A Clinical Strain Of Methicillin-Resistant Staphylococcus Aureus Resistant To The Synthetic Antibiotic Linezolid, Seok-Ming Toh, Liqun Xiong, Cesar A Arias, Maria V Villegas, Karen Lolans, John Quinn, Alexander S Mankin
Faculty, Staff and Student Publications
Linezolid, which targets the ribosome, is a new synthetic antibiotic that is used for treatment of infections caused by Gram-positive pathogens. Clinical resistance to linezolid, so far, has been developing only slowly and has involved exclusively target site mutations. We have discovered that linezolid resistance in a methicillin-resistant Staphylococcus aureus hospital strain from Colombia is determined by the presence of the cfr gene whose product, Cfr methyltransferase, modifies adenosine at position 2503 in 23S rRNA in the large ribosomal subunit. The molecular model of the linezolid-ribosome complex reveals localization of A2503 within the drug binding site. The natural function of …
Time-Kill And Synergism Studies Of Ceftobiprole Against Enterococcus Faecalis, Including Beta-Lactamase-Producing And Vancomycin-Resistant Isolates, Cesar A Arias, Kavindra V Singh, Diana Panesso, Barbara E Murray
Time-Kill And Synergism Studies Of Ceftobiprole Against Enterococcus Faecalis, Including Beta-Lactamase-Producing And Vancomycin-Resistant Isolates, Cesar A Arias, Kavindra V Singh, Diana Panesso, Barbara E Murray
Faculty, Staff and Student Publications
Ceftobiprole (BAL9141) is an investigational cephalosporin with broad in vitro activity against gram-positive cocci, including enterococci. Ceftobiprole MICs were determined for 93 isolates of Enterococcus faecalis (including 16 beta-lactamase [Bla] producers and 17 vancomycin-resistant isolates) by an agar dilution method following the Clinical and Laboratory Standards Institute recommendations. Ceftobiprole MICs were also determined with a high inoculum concentration (10(7) CFU/ml) for a subset of five Bla producers belonging to different previously characterized clones by a broth dilution method. Time-kill and synergism studies (with either streptomycin or gentamicin) were performed with two beta-lactamase-producing isolates (TX0630 and TX5070) and two vancomycin-resistant isolates …
Academic Health Center Management Of Chronic Diseases Through Knowledge Networks: Project Echo, Sanjeev Arora, Cynthia M A Geppert, Summers Kalishman, Denise Dion, Frank Pullara, Barbara Bjeletich, Gary Simpson, Dale C. Alverson, Lori B. Moore, Dave Kuhl, Joseph V. Scaletti
Academic Health Center Management Of Chronic Diseases Through Knowledge Networks: Project Echo, Sanjeev Arora, Cynthia M A Geppert, Summers Kalishman, Denise Dion, Frank Pullara, Barbara Bjeletich, Gary Simpson, Dale C. Alverson, Lori B. Moore, Dave Kuhl, Joseph V. Scaletti
Project ECHO Bibliography
The authors describe an innovative academic health center (AHC)-led program of health care delivery and clinical education for the management of complex, common, and chronic diseases in underserved areas, using hepatitis C virus (HCV) as a model. The program, based at the University of New Mexico School of Medicine, represents a paradigm shift in thinking and funding for the threefold mission of AHCs, moving from traditional fee-for-service models to public health funding of knowledge networks. This program, Project Extension for Community Health care Outcomes (ECHO), involves a partnership of academic medicine, public health offices, corrections departments, and rural community clinics …
Vancomycin-Resistant Enterococcus Faecalis Endocarditis: Linezolid Failure And Strain Characterization Of Virulence Factors, Constantine Tsigrelis, Kavindra V Singh, Thais D Coutinho, Barbara E Murray, Larry M Baddour
Vancomycin-Resistant Enterococcus Faecalis Endocarditis: Linezolid Failure And Strain Characterization Of Virulence Factors, Constantine Tsigrelis, Kavindra V Singh, Thais D Coutinho, Barbara E Murray, Larry M Baddour
Faculty, Staff and Student Publications
Infective endocarditis due to vancomycin-resistant (VR) Enterococcus faecalis has only rarely been reported. We report a case of VR E. faecalis endocarditis that failed to respond to linezolid therapy, outline the virulence traits of the isolate, and review previously published cases of VR E. faecalis endocarditis.
Water Source Outbreaks, Policy, And The South Bass Island Investigation, David Brett-Major, Sherry M. Brett-Major
Water Source Outbreaks, Policy, And The South Bass Island Investigation, David Brett-Major, Sherry M. Brett-Major
Journal Articles: Epidemiology
No abstract provided.
Project Echo: Linking University Specialists With Rural And Prison-Based Clinicians To Improve Care For People With Chronic Hepatitis C In New Mexico, Sanjeev Arora, Karla Thornton, Steven M. Jenkusky, Brooke Parish, Joseph V. Scaletti
Project Echo: Linking University Specialists With Rural And Prison-Based Clinicians To Improve Care For People With Chronic Hepatitis C In New Mexico, Sanjeev Arora, Karla Thornton, Steven M. Jenkusky, Brooke Parish, Joseph V. Scaletti
Project ECHO Bibliography
Project Extension for Community Healthcare Outcomes (Project ECHO) is a telemedicine and distance-learning program designed to improve access to quality health care for New Mexicans with hepatitis C. Project ECHO links health-care providers from rural clinics, the Indian Health Service, and prisons with specialists at the University of New Mexico. At weekly clinics, partners present and discuss patients with hepatitis C with specialists. Partners can receive continuing education credits for participating. Since June 2003, 173 hepatitis C clinics have been conducted with 1,843 case presentations. Partners have received 390 hours of training and 2,997 hours of continuing education credits. And …
Genome Sequence Of Fusobacterium Nucleatum Subspecies Polymorphum — A Genetically Tractable Fusobacterium, Sandor E Karpathy, Xiang Qin, Jason Gioia, Huaiyang Jiang, Yamei Liu, Joseph F Petrosino, Shailaja Yerrapragada, George E Fox, Susan Kinder Haake, George M Weinstock, Sarah K Highlander
Genome Sequence Of Fusobacterium Nucleatum Subspecies Polymorphum — A Genetically Tractable Fusobacterium, Sandor E Karpathy, Xiang Qin, Jason Gioia, Huaiyang Jiang, Yamei Liu, Joseph F Petrosino, Shailaja Yerrapragada, George E Fox, Susan Kinder Haake, George M Weinstock, Sarah K Highlander
Faculty, Staff and Student Publications
Fusobacterium nucleatum is a prominent member of the oral microbiota and is a common cause of human infection. F. nucleatum includes five subspecies: polymorphum, nucleatum, vincentii, fusiforme, and animalis. F. nucleatum subsp. polymorphum ATCC 10953 has been well characterized phenotypically and, in contrast to previously sequenced strains, is amenable to gene transfer. We sequenced and annotated the 2,429,698 bp genome of F. nucleatum subsp. polymorphum ATCC 10953. Plasmid pFN3 from the strain was also sequenced and analyzed. When compared to the other two available fusobacterial genomes (F. nucleatum subsp. nucleatum, and F. nucleatum subsp. vincentii) 627 open reading frames unique …
Association Of Putative Enteroaggregative Escherichia Coli Virulence Genes And Biofilm Production In Isolates From Travelers To Developing Countries, Jamal A Mohamed, David B Huang, Zhi-Dong Jiang, Herbert L Dupont, James P Nataro, Jaime Belkind-Gerson, Pablo C Okhuysen
Association Of Putative Enteroaggregative Escherichia Coli Virulence Genes And Biofilm Production In Isolates From Travelers To Developing Countries, Jamal A Mohamed, David B Huang, Zhi-Dong Jiang, Herbert L Dupont, James P Nataro, Jaime Belkind-Gerson, Pablo C Okhuysen
Faculty, Staff and Student Publications
Enteroaggregative Escherichia coli (EAEC) is an emerging enteric pathogen that causes acute and chronic diarrhea among children, human immunodeficiency virus-infected patients, and travelers to developing regions of the world. The pathogenesis of EAEC strains involves the production of biofilm. In this study, we determined the association between presence of putative EAEC virulence genes and biofilm formation in 57 EAEC isolates (as defined by HEp-2 adherence) from travelers with diarrhea and in 18 EAEC isolates from travelers without diarrhea. Twelve nondiarrheagenic E. coli isolates from healthy travelers were used as controls. Biofilm formation was measured by using a microtiter plate assay …
Bovine Immune Response To Shiga-Toxigenic Escherichia Coli O157:H7., Mark A Hoffman, Christian Menge, Thomas A Casey, William Laegreid, Brad T Bosworth, Evelyn A Dean-Nystrom
Bovine Immune Response To Shiga-Toxigenic Escherichia Coli O157:H7., Mark A Hoffman, Christian Menge, Thomas A Casey, William Laegreid, Brad T Bosworth, Evelyn A Dean-Nystrom
Manuscripts, Articles, Book Chapters and Other Papers
Although cattle develop humoral immune responses to Shiga-toxigenic (Stx+) Escherichia coli O157:H7, infections often result in long-term shedding of these human pathogenic bacteria. The objective of this study was to compare humoral and cellular immune responses to Stx+ and Stx- E. coli O157:H7. Three groups of calves were inoculated intrarumenally, twice in a 3-week interval, with different strains of E. coli: a Stx2-producing E. coli O157:H7 strain (Stx2+ O157), a Shiga toxin-negative E. coli O157:H7 strain (Stx- O157), or a nonpathogenic E. coli strain (control). Fecal shedding of Stx2+ O157 was significantly higher than that of Stx- O157 or the …
Vulnerability Of Pathogenic Biofilms To Micavibrio Aeruginosavorus, Daniel Kadouri, Nel C. Venzon, George A. O'Toole
Vulnerability Of Pathogenic Biofilms To Micavibrio Aeruginosavorus, Daniel Kadouri, Nel C. Venzon, George A. O'Toole
Dartmouth Scholarship
The host specificity of the gram-negative exoparasitic predatory bacterium Micavibrio aeruginosavorus was examined. M. aeruginosavorus preyed on Pseudomonas aeruginosa, as previously reported, as well as Burkholderia cepacia, Klebsiella pneumoniae, and numerous clinical isolates of these species. In a static assay, a reduction in biofilm biomass was observed as early as 3 hours after exposure to M. aeruginosavorus, and an ∼100-fold reduction in biofilm cell viability was detected following a a 24-h exposure to the predator. We observed that an initial titer of Micavibrio as low as 10 PFU/well or a time of exposure to the predator as short as 30 …
Lack Of Il-15 Results In The Suboptimal Priming Of Cd4+ T Cell Response Against An Intracellular Parasite, Crescent L. Combe, Magali M. Moretto, Joseph D. Schwartzman, Jason P. Gigley, David J. Bzik, Imtiaz A. Khan
Lack Of Il-15 Results In The Suboptimal Priming Of Cd4+ T Cell Response Against An Intracellular Parasite, Crescent L. Combe, Magali M. Moretto, Joseph D. Schwartzman, Jason P. Gigley, David J. Bzik, Imtiaz A. Khan
Dartmouth Scholarship
IFN-gamma-producing CD4+ T cells, although important for protection against acute Toxoplasma gondii infection, can cause gut pathology, which may prove to be detrimental for host survival. Here we show that mice lacking IL-15 gene develop a down-regulated IFN-gamma-producing CD4+ T cell response against the parasite, which leads to a reduction in gut necrosis and increased level of survival against infection. Moreover, transfer of immune CD4+ T cells from WT to IL-15-/- mice reversed inhibition of gut pathology and caused mortality equivalent to levels of parental WT mice. Down-regulated CD4+ T cell response in the absence of IL-15, manifested as reduced …
Research With Arctic Peoples: Unique Research Opportunities In Heart, Lung, Blood And Sleep Disorders. Working Group Summary And Recommendations, Sally Smith, Peter Bjerregaard, Hing Man Chan, André Corriveau, Sven Ebbesson, Ruth Etzel, Richard Fabsitz, Hakon Hakonarson, Carl Hild, Elizabeth Nobmann, Jeff Reading, Larisa Tereshchenko, T. Kue Young, Barbara Howard
Research With Arctic Peoples: Unique Research Opportunities In Heart, Lung, Blood And Sleep Disorders. Working Group Summary And Recommendations, Sally Smith, Peter Bjerregaard, Hing Man Chan, André Corriveau, Sven Ebbesson, Ruth Etzel, Richard Fabsitz, Hakon Hakonarson, Carl Hild, Elizabeth Nobmann, Jeff Reading, Larisa Tereshchenko, T. Kue Young, Barbara Howard
Open Access Publications
Arctic peoples are spread over eight countries and comprise 3.74 million residents, of whom 9% are indigenous. The Arctic countries include Canada, Finland, Greenland (Denmark), Iceland, Norway, Russia, Sweden and the United States. Although Arctic peoples are very diverse, there are a variety of environmental and health issues that are unique to the Arctic regions, and research exploring these issues offers significant opportunities, as well as challenges. On July 28-29, 2004, the National Heart, Lung, and Blood Institute and the Canadian Institutes of Health Research co-sponsored a working group entitled "Research with Arctic Peoples: Unique Research Opportunities in Heart, Lung, …
Cutaneous And Presumed Visceral Leishmaniasis In A Soldier Deployed To Afghanistan, James P. Woodrow, Joshua D. Hartzell, Jim Czarnik, David Brett-Major, Glenn Wortmann
Cutaneous And Presumed Visceral Leishmaniasis In A Soldier Deployed To Afghanistan, James P. Woodrow, Joshua D. Hartzell, Jim Czarnik, David Brett-Major, Glenn Wortmann
Journal Articles: Epidemiology
Leishmaniasis has been frequently diagnosed in US military personnel returning from duty in Southwest Asia. The majority of cases have demonstrated cutaneous disease, although a few cases of visceral disease have been documented. We present the case of an immunocompetent, HIV-negative, US Army soldier who suffered both visceral and cutaneous manifestations of leishmaniasis after returning from deployment in Afghanistan. Overlap of cutaneous and visceral involvement is rare and has not been reported in our cohort. Latent Plasmodium vivax infection may have been an exacerbating cofactor. We discuss this case and present a review of the literature.
Laboratory Diagnosis Of Tuberculosis In Primary Care, David Brett-Major, Thomas E. Walsh
Laboratory Diagnosis Of Tuberculosis In Primary Care, David Brett-Major, Thomas E. Walsh
Journal Articles: Epidemiology
No abstract provided.
Innate Antiviral Response Targets Hiv-1 Release By The Induction Of Ubiquitin-Like Protein Isg15, Atsushi Okumura, Gengshi Lu, Ian Pitha-Rowe, Paula M. Pitha
Innate Antiviral Response Targets Hiv-1 Release By The Induction Of Ubiquitin-Like Protein Isg15, Atsushi Okumura, Gengshi Lu, Ian Pitha-Rowe, Paula M. Pitha
Dartmouth Scholarship
The goal of this study was to elucidate the molecular mechanism by which type I IFN inhibits assembly and release of HIV-1 virions. Our study revealed that the IFN-induced ubiquitin-like protein ISG15 mimics the IFN effect and inhibits release of HIV-1 virions without having any effect on the synthesis of HIV-1 proteins in the cells. ISG15 expression specifically inhibited ubiquitination of Gag and Tsg101 and disrupted the interaction of the Gag L domain with Tsg101, but conjugation of ISG15 to Gag or Tsg101 was not detected. The inhibition of Gag-Tsg101 interaction was also detected in HIV-1 infected, IFN-treated cells. Elimination …
Antisperm Immunity For Contraception, R. K. Naz
Antisperm Immunity For Contraception, R. K. Naz
Faculty & Staff Scholarship
No abstract provided.
Analysis Of Epstein-Barr Virus Reservoirs In Paired Blood And Breast Cancer Primary Biopsy Specimens By Real Time Pcr., R Serene Perkins, Katherine Sahm, Cindy Marando, Diana Dickson-Witmer, Gregory R Pahnke, Mark Mitchell, Nicholas J Petrelli, Irving M Berkowitz, Patricia Soteropoulos, Virginie M Aris, Stephen P Dunn, Leslie J Krueger
Analysis Of Epstein-Barr Virus Reservoirs In Paired Blood And Breast Cancer Primary Biopsy Specimens By Real Time Pcr., R Serene Perkins, Katherine Sahm, Cindy Marando, Diana Dickson-Witmer, Gregory R Pahnke, Mark Mitchell, Nicholas J Petrelli, Irving M Berkowitz, Patricia Soteropoulos, Virginie M Aris, Stephen P Dunn, Leslie J Krueger
Department of Surgery Faculty Papers
INTRODUCTION: Epstein-Barr virus (EBV) is present in over 90% of the world's population. This infection is considered benign, even though in limited cases EBV is associated with infectious and neoplastic conditions. Over the past decade, the EBV association with breast cancer has been constantly debated. Adding to this clinical and biological uncertainty, different techniques gave contradictory results for the presence of EBV in breast carcinoma specimens. In this study, minor groove binding (MGB)-TaqMan real time PCR was used to detect the presence of EBV DNA in both peripheral blood and tumor samples of selected patients. METHODS: Peripheral blood and breast …