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Articles 7771 - 7800 of 8846
Full-Text Articles in Entire DC Network
Pseudomonas Aeruginosa Reduces Vx-809 Stimulated F508del-Cftr Chloride Secretion By Airway Epithelial Cells, Bruce A. Stanton, Bonita Coutermarsh, Roxanna Barnaby, Deborah Hogan
Pseudomonas Aeruginosa Reduces Vx-809 Stimulated F508del-Cftr Chloride Secretion By Airway Epithelial Cells, Bruce A. Stanton, Bonita Coutermarsh, Roxanna Barnaby, Deborah Hogan
Dartmouth Scholarship
Background:
P. aeruginosa is an opportunistic pathogen that chronically infects the lungs of 85% of adult patients with Cystic Fibrosis (CF). Previously, we demonstrated that P. aeruginosa reduced wt-CFTR Cl secretion by airway epithelial cells. Recently, a new investigational drug VX-809 has been shown to increase F508del-CFTR Cl secretion in human bronchial epithelial (HBE) cells, and, in combination with VX-770, to increase FEV1 (forced expiratory volume in 1 second) by an average of 3-5% in CF patients homozygous for the F508del-CFTR mutation. We propose that P. aeruginosa infection of CF lungs reduces VX-809 + VX-770- stimulated F508del-CFTR Cl secretion, and …
Genetic Heterogeneity Of Pseudoxanthoma Elasticum: The Chinese Signature Profile Of Abcc6 And Enpp1 Mutations., Liang Jin, Qiujie Jiang, Zhengsheng Wu, Changxia Shao, Yong Zhou, Luting Yang, Jouni Uitto, Gang Wang
Genetic Heterogeneity Of Pseudoxanthoma Elasticum: The Chinese Signature Profile Of Abcc6 And Enpp1 Mutations., Liang Jin, Qiujie Jiang, Zhengsheng Wu, Changxia Shao, Yong Zhou, Luting Yang, Jouni Uitto, Gang Wang
Department of Dermatology and Cutaneous Biology Faculty Papers
Pseudoxanthoma elasticum (PXE), an autosomal recessive disorder characterized by ectopic mineralization, is caused by mutations in the ABCC6 gene. We examined clinically 29 Chinese PXE patients from unrelated families, so far the largest cohort of Asian PXE patients. In a subset of 22 patients, we sequenced ABCC6 and another candidate gene, ENPP1, and conducted pathogenicity analyses for each variant. We identified a total of 17 distinct mutations in ABCC6, 15 of them being, to our knowledge, previously unreported, including 5 frameshift and 10 missense variants. In addition, a missense mutation in combination with a recurrent nonsense mutation in ENPP1 was …
Regulators Associated With Clinical Outcomes Revealed By Dna Methylation Data In Breast Cancer, Matthew H. Ung, Frederick S. Varn, Shaoke Lou, Chao Cheng
Regulators Associated With Clinical Outcomes Revealed By Dna Methylation Data In Breast Cancer, Matthew H. Ung, Frederick S. Varn, Shaoke Lou, Chao Cheng
Dartmouth Scholarship
The regulatory architecture of breast cancer is extraordinarily complex and gene misregulation can occur at many levels, with transcriptional malfunction being a major cause. This dysfunctional process typically involves additional regulatory modulators including DNA methylation. Thus, the interplay between transcription factor (TF) binding and DNA methylation are two components of a cancer regulatory interactome presumed to display correlated signals. As proof of concept, we performed a systematic motif-based in silico analysis to infer all potential TFs that are involved in breast cancer prognosis through an association with DNA methylation changes. Using breast cancer DNA methylation and clinical data derived from …
Haemophilus Influenzae Responds To Glucocorticoids Used In Asthma Therapy By Modulation Of Biofilm Formation And Antibiotic Resistance, Chris S. Earl, Tee Wooi Keong, Shi-Qi An, Sarah Murdoch, Yvonne Mccarthy, Junkal Garmendia, Joseph Ward, J Maxwell Dow, Liang Yang, George A. O'Toole, Robert P. Ryan
Haemophilus Influenzae Responds To Glucocorticoids Used In Asthma Therapy By Modulation Of Biofilm Formation And Antibiotic Resistance, Chris S. Earl, Tee Wooi Keong, Shi-Qi An, Sarah Murdoch, Yvonne Mccarthy, Junkal Garmendia, Joseph Ward, J Maxwell Dow, Liang Yang, George A. O'Toole, Robert P. Ryan
Dartmouth Scholarship
Glucocorticosteroids are used as a main treatment to reduce airway inflammation in people with asthma who suffer from neutrophilic airway inflammation, a condition frequently associ- ated with Haemophilus influenzae colonization. Here we show that glucocorticosteroids have a direct influence on the behavior of H. influenzae that may account for associated difficulties with therapy. Using a mouse model of infection, we show that cortico- steroid treatment promotes H. influenzae persistence. Transcrip- tomic analysis of bacteria either isolated from infected mouse airway or grown in laboratory medium identified a number of genes encoding regulatory factors whose expression responded to the presence of …
Prospective Study Of Recovery From Copperhead Snake Envenomation: An Observational Study, Eric J. Lavonas, Charles J. Gerardo, Rebecca C. Bowers, Joann Short, Copperhead Snakebite Recovery Outcome Group
Prospective Study Of Recovery From Copperhead Snake Envenomation: An Observational Study, Eric J. Lavonas, Charles J. Gerardo, Rebecca C. Bowers, Joann Short, Copperhead Snakebite Recovery Outcome Group
Emergency Medicine Faculty Publications
BACKGROUND: Although much is known about signs, symptoms, and management in the acute phase of crotaline snake envenomation, little is known about signs, symptoms, function, and quality of life during the recovery phase. The purpose of this observational pilot investigation is to evaluate the utility of several clinical outcome instruments in the setting of copperhead snakebite, and to characterize the clinical course of recovery.
METHODS: This is a multi-center prospective, open-label, observational study of patients envenomated by copperhead snakes. We administered the Disabilities of the Arm, Shoulder, and Hand (DASH), Lower Extremity Functional Scale (LEFS), Patient-Specific Functional Scale …
Connectionist Perspectives On Language Learning, Representation And Processing., Marc F Joanisse, James L Mcclelland
Connectionist Perspectives On Language Learning, Representation And Processing., Marc F Joanisse, James L Mcclelland
Brain and Mind Institute Researchers' Publications
The field of formal linguistics was founded on the premise that language is mentally represented as a deterministic symbolic grammar. While this approach has captured many important characteristics of the world's languages, it has also led to a tendency to focus theoretical questions on the correct formalization of grammatical rules while also de-emphasizing the role of learning and statistics in language development and processing. In this review we present a different approach to language research that has emerged from the parallel distributed processing or 'connectionist' enterprise. In the connectionist framework, mental operations are studied by simulating learning and processing within …
Evaluation Of A Pharmacist-Led Medication Assessment Used To Identify Prevalence Of And Associations With Polypharmacy And Potentially Inappropriate Medication Use Among Ambulatory Senior Adults With Cancer., Ginah Nightingale, Emily Hajjar, Kristine Swartz, Jocelyn Andrel-Sendecki, Andrew Chapman
Evaluation Of A Pharmacist-Led Medication Assessment Used To Identify Prevalence Of And Associations With Polypharmacy And Potentially Inappropriate Medication Use Among Ambulatory Senior Adults With Cancer., Ginah Nightingale, Emily Hajjar, Kristine Swartz, Jocelyn Andrel-Sendecki, Andrew Chapman
College of Pharmacy Faculty Papers
PURPOSE: The use of multiple and/or inappropriate medications in seniors is a significant public health problem, and cancer treatment escalates its prevalence and complexity. Existing studies are limited by patient self-report and medical record extraction compared with a pharmacist-led comprehensive medication assessment.
PATIENTS AND METHODS: We retrospectively examined medication use in ambulatory senior adults with cancer to determine the prevalence of polypharmacy (PP) and potentially inappropriate medication (PIM) use and associated factors. PP was defined as concurrent use of five or more and less than 10 medications, and excessive polypharmacy (EPP) was defined as 10 or more medications. PIMs were …
Cell Signaling Events Differentiate Er-Negative Subtypes From Er-Positive Breast Cancer, Maria Worsham, Dhananjay A. Chitale, Kang-Mei Chen, Indrani Datta, George Divine
Cell Signaling Events Differentiate Er-Negative Subtypes From Er-Positive Breast Cancer, Maria Worsham, Dhananjay A. Chitale, Kang-Mei Chen, Indrani Datta, George Divine
Otolaryngology Articles
Currently available markers routinely used in clinical practice are of limited value to patients with estrogen receptor-negative (ER(-)) breast cancer [basal-like and HER2neu-positive (HER(+))], an aggressive subtype. Our aim was to uncover molecular pathways and signaling networks exposed by differentially methylated genes informative of the biology of ER(-) breast cancer (BC) subtypes versus ER-positive (ER(+)). Whole-genome methylation array analysis was carried out using the Illumina Infinium HumanMethylation27 BeadChip on 14 primary BC: five ER(+), four triple-negative (TNBC), and five ER(-)HER2(+). Degree of methylation was calculated as a β-value (ranging from 0 to 1), and M-values [log (β/(1 - β)] were …
Increasing Adipocyte Lipoprotein Lipase Improves Glucose Metabolism In High Fat Diet-Induced Obesity, R. Grace Walton, Beibei Zhu, Resat Unal, Michael Spencer, Manjula Sunkara, Andrew J. Morris, Richard Charnigo, Wendy S. Katz, Alan Daugherty, Deborah A. Howatt, Philip A. Kern, Brian S. Finlin
Increasing Adipocyte Lipoprotein Lipase Improves Glucose Metabolism In High Fat Diet-Induced Obesity, R. Grace Walton, Beibei Zhu, Resat Unal, Michael Spencer, Manjula Sunkara, Andrew J. Morris, Richard Charnigo, Wendy S. Katz, Alan Daugherty, Deborah A. Howatt, Philip A. Kern, Brian S. Finlin
Barnstable Brown Diabetes Center Faculty Publications
Lipid accumulation in liver and skeletal muscle contributes to co-morbidities associated with diabetes and obesity. We made a transgenic mouse in which the adiponectin (Adipoq) promoter drives expression of lipoprotein lipase (LPL) in adipocytes to potentially increase adipose tissue lipid storage. These mice (Adipoq-LPL) have improved glucose and insulin tolerance as well as increased energy expenditure when challenged with a high fat diet (HFD). To identify the mechanism(s) involved, we determined whether the Adipoq-LPL mice diverted dietary lipid to adipose tissue to reduce peripheral lipotoxicity, but we found no evidence for this. Instead, characterization …
Reverse Genetics Of Mononegavirales: How They Work, New Vaccines, And New Cancer Therapeutics., Christian K Pfaller, Roberto Cattaneo, Matthias J. Schnell
Reverse Genetics Of Mononegavirales: How They Work, New Vaccines, And New Cancer Therapeutics., Christian K Pfaller, Roberto Cattaneo, Matthias J. Schnell
Department of Microbiology and Immunology Faculty Papers
The order Mononegavirales includes five families: Bornaviridae, Filoviridae, Nyamaviridae, Paramyxoviridae, and Rhabdoviridae. The genome of these viruses is one molecule of negative-sense single strand RNA coding for five to ten genes in a conserved order. The RNA is not infectious until packaged by the nucleocapsid protein and transcribed by the polymerase and co-factors. Reverse genetics approaches have answered fundamental questions about the biology of Mononegavirales. The lack of icosahedral symmetry and modular organization in the genome of these viruses has facilitated engineering of viruses expressing fluorescent proteins, and these fluorescent proteins have provided important insights about the molecular and cellular …
Immune Reconstitution But Persistent Activation After 48 Weeks Of Antiretroviral Therapy In Youth With Pre-Therapy Cd4 >350 In Atn 061., Bret J. Rudy, Bill G. Kapogiannis, Carol Worrell, Kathleen E. Squires, James Bethel, Su Li, Craig M. Wilson, Allison Agwu, Patricia Emmanuel, Georgine Price, Stephanie Hudey, Maureen M. Goodenow, John W. Sleasman
Immune Reconstitution But Persistent Activation After 48 Weeks Of Antiretroviral Therapy In Youth With Pre-Therapy Cd4 >350 In Atn 061., Bret J. Rudy, Bill G. Kapogiannis, Carol Worrell, Kathleen E. Squires, James Bethel, Su Li, Craig M. Wilson, Allison Agwu, Patricia Emmanuel, Georgine Price, Stephanie Hudey, Maureen M. Goodenow, John W. Sleasman
Department of Medicine Faculty Papers
BACKGROUND: Measures of immune outcomes in youth who initiate combination antiretroviral therapy (cART) early in HIV infection are limited.
DESIGN: Adolescent Trials Network 061 examined changes over 48 weeks of cART in T-cell subsets and markers of T-cell and macrophage activation in subjects with pre-therapy CD4 > 350 cells/mm. All subjects had optimal viral suppression from weeks 24 through 48.
METHODS: Subjects (n = 48) initiated cART with tenofovir/emtricitabine plus ritonavir-boosted atazanavir. Data were collected at baseline and weeks 12, 24, and 48. Trends were compared to uninfected controls.
RESULTS: Significant increases over 48 weeks were noted in all CD4 populations, …
Multimodal Frontostriatal Connectivity Underlies Individual Differences In Self-Esteem, Robert S. Chavez, Todd F. Heatherton
Multimodal Frontostriatal Connectivity Underlies Individual Differences In Self-Esteem, Robert S. Chavez, Todd F. Heatherton
Dartmouth Scholarship
A heightened sense of self-esteem is associated with a reduced risk for several types of affective and psychiatric disorders, including depression, anxiety and eating disorders. However, little is known about how brain systems integrate self-referential processing and positive evaluation to give rise to these feelings. To address this, we combined diffusion tensor imaging (DTI) and functional magnetic resonance imaging (fMRI) to test how frontostriatal connectivity reflects long-term trait and short-term state aspects of self-esteem. Using DTI, we found individual variability in white matter structural integrity between the medial prefrontal cortex and the ventral striatum was related to trait measures of …
Inflammatory Muscle Diseases., Marinos C Dalakas
Inflammatory Muscle Diseases., Marinos C Dalakas
Department of Neurology Faculty Papers
No abstract provided.
Can Polychlorinated Biphenyl (Pcb) Signatures And Enantiomer Fractions Be Used For Source Identification And To Age Date Occupational Exposure?, David Megson, Jean Françios Focant, Donald G. Patterson, Matthew Robson, Maeve C. Lohan, Paul J. Worsfold, Sean Comber, Robert Kalin, Eric Reiner, Gwen O'Sullivan
Can Polychlorinated Biphenyl (Pcb) Signatures And Enantiomer Fractions Be Used For Source Identification And To Age Date Occupational Exposure?, David Megson, Jean Françios Focant, Donald G. Patterson, Matthew Robson, Maeve C. Lohan, Paul J. Worsfold, Sean Comber, Robert Kalin, Eric Reiner, Gwen O'Sullivan
School of Geography, Earth and Environmental Sciences
Detailed polychlorinated biphenyl (PCB) signatures and chiral Enantiomer Fractions (EFs) of CB-95, CB-136 and CB-149 were measured for 30 workers at a transformer dismantling plant. This was undertaken to identify sources of exposure and investigate changes to the PCB signature and EFs over different exposure periods. Approximately 1.5 g of serum was extracted and PCB signatures were created through analysis by comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) and EFs calculated following analysis by gas chromatography with high resolution mass spectrometry (GC-HRMS). A total of 84 PCBs were identified in the serum samples with concentrations of the 7 …
Preempting Performance Challenges: The Effects Of Inoculation Messaging On Attacks To Task Self-Efficacy, Ben Jackson, Josh Compton, Ryan Whiddett, David R. Anthony, James A. Dimmock
Preempting Performance Challenges: The Effects Of Inoculation Messaging On Attacks To Task Self-Efficacy, Ben Jackson, Josh Compton, Ryan Whiddett, David R. Anthony, James A. Dimmock
Dartmouth Scholarship
Although inoculation messages have been shown to be effective for inducing resistance to counter-attitudinal attacks, researchers have devoted relatively little attention toward studying the way in which inoculation theory principles might support challenges to psychological phenomena other than attitudes (e.g., self-efficacy). Prior to completing a physical (i.e., balance) task, undergraduates (N = 127, Mage = 19.20, SD = 2.16) were randomly assigned to receive either a control or inoculation message, and reported their confidence in their ability regarding the upcoming task. During the task, a confederate provided standardized negative feedback to all participants regarding their performance, and following …
Loregic: A Method To Characterize The Cooperative Logic Of Regulatory Factors, Daifeng Wang, Koon-Kiu Yan, Cristina Sisu, Chao Cheng, Joel Rozowsky, William Meyerson, Mark B. Gerstein
Loregic: A Method To Characterize The Cooperative Logic Of Regulatory Factors, Daifeng Wang, Koon-Kiu Yan, Cristina Sisu, Chao Cheng, Joel Rozowsky, William Meyerson, Mark B. Gerstein
Dartmouth Scholarship
The topology of the gene-regulatory network has been extensively analyzed. Now, given the large amount of available functional genomic data, it is possible to go beyond this and systematically study regulatory circuits in terms of logic elements. To this end, we present Loregic, a computational method integrating gene expression and regulatory network data, to characterize the cooperativity of regulatory factors. Loregic uses all 16 possible two-input-one-output logic gates (e.g. AND or XOR) to describe triplets of two factors regulating a common target. We attempt to find the gate that best matches each triplet’s observed gene expression pattern across many conditions. …
Identifying Cases Of Undiagnosed, Clinically Significant Copd In Primary Care: Qualitative Insight From Patients In The Target Population, Nancy K. Leidy, Katherine Kim, Elizabeth D. Bacci, Barbara P. Yawn, David M. Mannino, Byron M. Thomashow, R. Graham Barr, Stephen I. Rennard, Julia F. Houfek, Meilan K. Han, Catherine A. Meldrum, Barry J. Make, Russ P. Bowler, Anna W. Steenrod, Lindsey T. Murray, John W. Walsh, Fernando Martinez
Identifying Cases Of Undiagnosed, Clinically Significant Copd In Primary Care: Qualitative Insight From Patients In The Target Population, Nancy K. Leidy, Katherine Kim, Elizabeth D. Bacci, Barbara P. Yawn, David M. Mannino, Byron M. Thomashow, R. Graham Barr, Stephen I. Rennard, Julia F. Houfek, Meilan K. Han, Catherine A. Meldrum, Barry J. Make, Russ P. Bowler, Anna W. Steenrod, Lindsey T. Murray, John W. Walsh, Fernando Martinez
Preventive Medicine and Environmental Health Faculty Publications
BACKGROUND: Many cases of chronic obstructive pulmonary disease (COPD) are diagnosed only after significant loss of lung function or during exacerbations.
AIMS: This study is part of a multi-method approach to develop a new screening instrument for identifying undiagnosed, clinically significant COPD in primary care.
METHODS: Subjects with varied histories of COPD diagnosis, risk factors and history of exacerbations were recruited through five US clinics (four pulmonary, one primary care). Phase I: Eight focus groups and six telephone interviews were conducted to elicit descriptions of risk factors for COPD, recent or historical acute respiratory events, and symptoms to inform the …
Transcriptional Activity Of The Islet Β Cell Factor Pdx1 Is Augmented By Lysine Methylation Catalyzed By The Methyltransferase Set7/9, Aarthi V. Maganti, Bernhard Maier, Sarah A. Tersey, Megan L. Sampley, Amber L. Mosley, Sabire Özcan, Boobalan Pachaiyappan, Patrick M. Woster, Chad S. Hunter, Roland Stein, Raghavendra G. Mirmira
Transcriptional Activity Of The Islet Β Cell Factor Pdx1 Is Augmented By Lysine Methylation Catalyzed By The Methyltransferase Set7/9, Aarthi V. Maganti, Bernhard Maier, Sarah A. Tersey, Megan L. Sampley, Amber L. Mosley, Sabire Özcan, Boobalan Pachaiyappan, Patrick M. Woster, Chad S. Hunter, Roland Stein, Raghavendra G. Mirmira
Molecular and Cellular Biochemistry Faculty Publications
The transcription factor Pdx1 is crucial to islet β cell function and regulates target genes in part through interaction with coregulatory factors. Set7/9 is a Lys methyltransferase that interacts with Pdx1. Here we tested the hypothesis that Lys methylation of Pdx1 by Set7/9 augments Pdx1 transcriptional activity. Using mass spectrometry and mutational analysis of purified proteins, we found that Set7/9 methylates the N-terminal residues Lys-123 and Lys-131 of Pdx1. Methylation of these residues occurred only in the context of intact, full-length Pdx1, suggesting a specific requirement of secondary and/or tertiary structural elements for catalysis by Set7/9. Immunoprecipitation assays and mass …
Practical Management Of Anticoagulation In Patients With Atrial Fibrillation., Richard J Kovacs, Greg C Flaker, Sherry J Saxonhouse, John U. Doherty, Kim K Birtcher, Adam Cuker, Bruce L Davidson, Robert P Giugliano, Christopher B Granger, Amir K Jaffer, Bella H Mehta, Edith Nutescu, Kim A Williams
Practical Management Of Anticoagulation In Patients With Atrial Fibrillation., Richard J Kovacs, Greg C Flaker, Sherry J Saxonhouse, John U. Doherty, Kim K Birtcher, Adam Cuker, Bruce L Davidson, Robert P Giugliano, Christopher B Granger, Amir K Jaffer, Bella H Mehta, Edith Nutescu, Kim A Williams
Department of Medicine Faculty Papers
Anticoagulation for atrial fibrillation has become more complex due to the introduction of new anticoagulant agents, the number and kinds of patients requiring therapy, and the interactions of those patients in the matrix of care. The management of anticoagulation has become a "team sport" involving multiple specialties in multiple sites of care. The American College of Cardiology, through the College's Anticoagulation Initiative, convened a roundtable of experts from multiple specialties to discuss topics important to the management of patients requiring anticoagulation and to make expert recommendations on issues such as the initiation and interruption of anticoagulation, quality of anticoagulation care, …
Clinical Challenges In Isolation Care, Elizabeth L. Beam, Shawn G. Gibbs, Angela L. Hewlett, Peter C. Iwen, Suzanne L. Nuss, Philip W. Smith
Clinical Challenges In Isolation Care, Elizabeth L. Beam, Shawn G. Gibbs, Angela L. Hewlett, Peter C. Iwen, Suzanne L. Nuss, Philip W. Smith
Journal Articles: College of Nursing
OVERVIEW: In 2014, the authors published the results of a study investigating nurses' use of personal protective equipment (PPE) in the care of a live simulated patient requiring contact and airborne precautions. The 24 participants were video-recorded as they donned and doffed PPE. Variations in practices that had the potential to cause contamination were noted. In this article, the authors comment on those variations, analyzing each element of proper PPE protocols and examining why the behaviors are a safety concern for the nurse and a potential risk for disease transmission in the hospital or other clinical area. The authors note …
Evaluation And Nonsurgical Management Of Rotator Cuff Calcific Tendinopathy., Ari C. Greis, Stephen M. Derrington, Matthew Mcauliffe
Evaluation And Nonsurgical Management Of Rotator Cuff Calcific Tendinopathy., Ari C. Greis, Stephen M. Derrington, Matthew Mcauliffe
Rothman Institute Papers
Rotator cuff calcific tendinopathy is a common finding that accounts for about 7% of patients with shoulder pain. There are numerous theories on the pathogenesis of rotator cuff calcific tendinopathy. The diagnosis is confirmed with radiography, MRI or ultrasound. There are numerous conservative treatment options available and most patients can be managed successfully without surgical intervention. Nonsteroidal anti-inflammatory drugs and multiple modalities are often used to manage pain and inflammation; physical therapy can help improve scapular mechanics and decrease dynamic impingement; ultrasound-guided needle aspiration and lavage techniques can provide long-term improvement in pain and function in these patients.
Point-Of-Care Ultrasonography By Pediatric Emergency Medicine Physicians., Jennifer R. Marin, Resa E. Lewiss, American Academy Of Pediatrics, Committee On Pediatric Emergency Medicine, Society For Academic Emergency Medicine, Academy Of Emergency Ultrasound, American College Of Emergency Physicians, Pediatric Emergency Medicine Committee, World Interactive Network Focused On Critical Ultrasound, Gregory P. Conners
Point-Of-Care Ultrasonography By Pediatric Emergency Medicine Physicians., Jennifer R. Marin, Resa E. Lewiss, American Academy Of Pediatrics, Committee On Pediatric Emergency Medicine, Society For Academic Emergency Medicine, Academy Of Emergency Ultrasound, American College Of Emergency Physicians, Pediatric Emergency Medicine Committee, World Interactive Network Focused On Critical Ultrasound, Gregory P. Conners
Manuscripts, Articles, Book Chapters and Other Papers
Emergency physicians have used point-of-care ultrasonography since the 1990 s. Pediatric emergency medicine physicians have more recently adopted this technology. Point-of-care ultrasonography is used for various scenarios, particularly the evaluation of soft tissue infections or blunt abdominal trauma and procedural guidance. To date, there are no published statements from national organizations specifically for pediatric emergency physicians describing the incorporation of point-of-care ultrasonography into their practice. This document outlines how pediatric emergency departments may establish a formal point-of-care ultrasonography program. This task includes appointing leaders with expertise in point-of-care ultrasonography, effectively training and credentialing physicians in the department, and providing ongoing …
When The Chief Complaint Tells It All, Herbert L Fred
When The Chief Complaint Tells It All, Herbert L Fred
The Texas Heart Institute Journal
No abstract provided.
Prenatal Diagnosis Of Left Pulmonary Artery-To-Pulmonary Vein Fistula And Its Successful Surgical Repair In A Neonate, Oleksii Ostras, Andrii Kurkevych, Lyubomyr Bohuta, Tetyana Yalynska, Tammo Raad, Mark Lewin, Illya Yemets
Prenatal Diagnosis Of Left Pulmonary Artery-To-Pulmonary Vein Fistula And Its Successful Surgical Repair In A Neonate, Oleksii Ostras, Andrii Kurkevych, Lyubomyr Bohuta, Tetyana Yalynska, Tammo Raad, Mark Lewin, Illya Yemets
The Texas Heart Institute Journal
Pulmonary arteriovenous fistula is a rare disease. To the best of our knowledge, prenatal diagnosis of a fistula between the left pulmonary artery and the left pulmonary vein has not been described in the medical literature. We report a case of the prenatal diagnosis of a left pulmonary artery-to-pulmonary vein fistula, followed by successful neonatal surgical repair.
Regression Of Left Ventricular Mass After Implantation Of The Sutureless 3f Enable Aortic Bioprosthesis, Giovanni Concistrè, Antonio Miceli, Federica Marchi, Francesca Chiaramonti, Mattia Glauber, Marco Solinas
Regression Of Left Ventricular Mass After Implantation Of The Sutureless 3f Enable Aortic Bioprosthesis, Giovanni Concistrè, Antonio Miceli, Federica Marchi, Francesca Chiaramonti, Mattia Glauber, Marco Solinas
The Texas Heart Institute Journal
Left ventricular hypertrophy in aortic stenosis is considered a compensatory response for the maintenance of systolic function but a risk factor for cardiac morbidity and death. We investigated the degree of left ventricular mass regression after implantation of the sutureless Medtronic 3f Enable® Aortic Bioprosthesis.
We studied 19 patients who, from May 2010 through July 2011, underwent isolated aortic valve replacement with the 3f Enable bioprosthetic valve, with clinical and echocardiographic follow-up at 6 months. The mean age was 77.1 ± 5.1 years (range, 68–86 yr); 14 patients were women (73.7%); and the mean logistic EuroSCORE was 15.4% ± 11.8%. …
An Approach For Determining And Measuring Network Hierarchy Applied To Comparing The Phosphorylome And The Regulome, Chao Cheng, Erik Andrews, Koon-Kiu Yan, Matthew Ung, Daifeng Wang, Mark Gerstein
An Approach For Determining And Measuring Network Hierarchy Applied To Comparing The Phosphorylome And The Regulome, Chao Cheng, Erik Andrews, Koon-Kiu Yan, Matthew Ung, Daifeng Wang, Mark Gerstein
Dartmouth Scholarship
Many biological networks naturally form a hierarchy with a preponderance of downward information flow. In this study, we define a score to quantify the degree of hierarchy in a network and develop a simulated-annealing algorithm to maximize the hierarchical score globally over a network. We apply our algorithm to determine the hierarchical structure of the phosphorylome in detail and investigate the correlation between its hierarchy and kinase properties. We also compare it to the regulatory network, finding that the phosphorylome is more hierarchical than the regulome.
Association Of Early Imaging For Back Pain With Clinical Outcomes In Older Adults, Jeffrey G. Jarvik, Laura S. Gold, Bryan A. Comstock, Patrick J. Heagerty, Sean D. Rundell, Judith A. Turner, Andrew L. Avins, Zoya Bauer, Brian W. Bresnahan, Janna L. Friedly, Kathryn James, Larry Kessler, Srdjan S. Nedeljkovic, David R. Nerenz, Xu Shi, Sean D. Sullivan, Leighton Chan, Jason M. Schwalb, Richard A. Deyo
Association Of Early Imaging For Back Pain With Clinical Outcomes In Older Adults, Jeffrey G. Jarvik, Laura S. Gold, Bryan A. Comstock, Patrick J. Heagerty, Sean D. Rundell, Judith A. Turner, Andrew L. Avins, Zoya Bauer, Brian W. Bresnahan, Janna L. Friedly, Kathryn James, Larry Kessler, Srdjan S. Nedeljkovic, David R. Nerenz, Xu Shi, Sean D. Sullivan, Leighton Chan, Jason M. Schwalb, Richard A. Deyo
Center for Health Policy and Health Services Research Articles
IMPORTANCE: In contrast to the recommendations for younger adults, many guidelines allow for older adults with back pain to undergo imaging without waiting 4 to 6 weeks. However, early imaging may precipitate interventions that do not improve outcomes.
OBJECTIVE: To compare function and pain at the 12-month follow-up visit among older adults who received early imaging with those who did not receive early imaging after a new primary care visit for back pain without radiculopathy.
DESIGN, SETTING, AND PARTICIPANTS: Prospective cohort of 5239 patients 65 years or older with a new primary care visit for back pain (2011-2013) in 3 …
Predicted Protein-Protein Interactions In The Moss Physcomitrella Patens: A New Bioinformatic Resource., Scott Schuette, Brian Piatkowski, Aaron Corley, Daniel Lang, Matt Geisler
Predicted Protein-Protein Interactions In The Moss Physcomitrella Patens: A New Bioinformatic Resource., Scott Schuette, Brian Piatkowski, Aaron Corley, Daniel Lang, Matt Geisler
Publications
BACKGROUND: Physcomitrella patens, a haploid dominant plant, is fast becoming a useful molecular genetics and bioinformatics tool due to its key phylogenetic position as a bryophyte in the post-genomic era. Genome sequences from select reference species were compared bioinformatically to Physcomitrella patens using reciprocal blasts with the InParanoid software package. A reference protein interaction database assembled using MySQL by compiling BioGrid, BIND, DIP, and Intact databases was queried for moss orthologs existing for both interacting partners. This method has been used to successfully predict interactions for a number of angiosperm plants.
RESULTS: The first predicted protein-protein interactome for a bryophyte …
Sparcoc: A New Framework For Molecular Pattern Discovery And Cancer Gene Identification, Shiqian Ma, Daniel Johnson, Cody Ashby, Donghai Xiong, Carole L. Cramer, Jason H. Moore, Shuzhong Zhang, Xiuzhen Huang
Sparcoc: A New Framework For Molecular Pattern Discovery And Cancer Gene Identification, Shiqian Ma, Daniel Johnson, Cody Ashby, Donghai Xiong, Carole L. Cramer, Jason H. Moore, Shuzhong Zhang, Xiuzhen Huang
Dartmouth Scholarship
It is challenging to cluster cancer patients of a certain histopathological type into molecular subtypes of clinical importance and identify gene signatures directly relevant to the subtypes. Current clustering approaches have inherent limitations, which prevent them from gauging the subtle heterogeneity of the molecular subtypes. In this paper we present a new framework: SPARCoC (Sparse-CoClust), which is based on a novel Common-background and Sparse-foreground Decomposition (CSD) model and the Maximum Block Improvement (MBI) co-clustering technique. SPARCoC has clear advantages compared with widely-used alternative approaches: hierarchical clustering (Hclust) and nonnegative matrix factorization (NMF). We apply SPARCoC to the study of lung …
Prolonged-Acting, Multi-Targeting Gallium Nanoparticles Potently Inhibit Growth Of Both Hiv And Mycobacteria In Co-Infected Human Macrophages., Prabagaran Narayanasamy, Barbara L. Switzer, Bradley E. Britigan
Prolonged-Acting, Multi-Targeting Gallium Nanoparticles Potently Inhibit Growth Of Both Hiv And Mycobacteria In Co-Infected Human Macrophages., Prabagaran Narayanasamy, Barbara L. Switzer, Bradley E. Britigan
Journal Articles: Pathology and Microbiology
Human immunodeficiency virus (HIV) infection and Mycobacterium tuberculosis (TB) are responsible for two of the major global human infectious diseases that result in significant morbidity, mortality and socioeconomic impact. Furthermore, severity and disease prevention of both infections is enhanced by co-infection. Parallel limitations also exist in access to effective drug therapy and the emergence of resistance. Furthermore, drug-drug interactions have proven problematic during treatment of co-incident HIV and TB infections. Thus, improvements in drug access and simplified treatment regimens are needed immediately. One of the key host cells infected by both HIV and TB is the mononuclear phagocyte (MP; monocyte, …