Digital Commons Network^™

Atm-Dependent Chk2 Activation Induced By Anticancer Agent, Irofulven, Jian Wang, Timothy Wiltshire, Yutian Wang, Carmenza Mikell, Julian Burks, Cynthia Cunningham, Emily S. Van Laar, Stephen J. Waters, Eddie Reed, Weixin Wang

Faculty & Staff Scholarship

Irofulven (6-hydroxymethylacylfulvene, HMAF, MGI 114) is one of a new class of anticancer agents that are semisynthetic derivatives of the mushroom toxin illudin S. Preclinical studies and...

Regulation Of Vertebrate Eye Development By Rx Genes, Travis J. Bailey, Heithem El-Hodiri, Li Zhang, Rina Shah, Peter H. Mathers, Milan Jamrich

Faculty & Staff Scholarship

No abstract provided.

Slbp Is Associated With Histone Mrna On Polyribosomes As A Component Of The Histone Mrnp, Michael L. Whitfield, Handan Kaygun, Judith A. Erkmann, W. H. Davin Townley-Tilson, Zbig Dominski, William F. Marzluff

Dartmouth Scholarship

The stem–loop binding protein (SLBP) binds the 3′ end of histone mRNA and is present both in nucleus, and in the cytoplasm on the polyribosomes. SLBP participates in the processing of the histone pre-mRNA and in translation of the mature message. Histone mRNAs are rapidly degraded when cells are treated with inhibitors of DNA replication and are stabilized by inhibitors of translation, resulting in an increase in histone mRNA levels. Here, we show that SLBP is a component of the histone messenger ribonucleoprotein particle (mRNP). Histone mRNA from polyribosomes is immunoprecipitated with anti-SLBP. Most of the SLBP in cycloheximide-treated cells …

The Pharmacokinetics Of Nebulized Nanocrystal Budesonide Suspension In Healthy Volunteers., Walter Kraft, Barry Steiger, Don Beussink, John N. Quiring, Nancy Fitzgerald, Howard E. Greenberg, Scott A. Waldman

Department of Medicine Faculty Papers

Nanocrystal budesonide (nanobudesonide) is a suspension for nebulization in patients with steroid-responsive pulmonary diseases such as asthma. The pharmacokinetics and safety of the product were compared to those of Pulmicort Respules. Sixteen healthy volunteers were administered nanobudesonide 0.5 and 1.0 mg, Pulmicort Respules 0.5 mg, and placebo in a four-way, randomized crossover design. All nebulized formulations were well tolerated, with no evidence of bronchospasm. Nebulization times were significantly shorter for nanobudesonide compared to Pulmicort Respules. Because of a low oral bioavailability, plasma concentration of budesonide is a good marker of lung-delivered dose. The pharmacokinetics of nanobudesonide 0.5 and 1.0 mg …

Noninvasive Assessment Of Diffusion Hypoxia Following Administration Of Nitrous Oxide-Oxygen, Arthur H. Jeske, Clark W. Whitmire, Chris Freels, Mike Fuentes

Faculty, Staff and Student Publications

The phenomenon of diffusion hypoxia is commonly believed to occur unless nitrous oxide-oxygen inhalation sedation is followed by "washout" with 100% oxygen for 5 minutes upon termination of the flow of nitrous oxide. When systematically studied, however, this phenomenon generally appears to be unfounded. The present study evaluated the effect of breathing room air instead of 100% oxygen in healthy (ASA 1) human volunteers following administration of sedative concentrations of nitrous oxide. The occurrence of hypoxia was determined objectively, using pulse oximetry and a standardized psychomotor skills test (Trieger test). Diffusion hypoxia was not observed using these criteria.

Comparison Of Pretreatment Characteristics And Treatment Outcomes For Alcohol-, Cocaine-, And Multisubstance-Dependent Patients., Ashwin A. Patkar, Charles C. Thornton, Paolo Mannelli, Kevin P. Hill, Edward Gottheil, Michael J. Vergare, Stephen P. Weinstein

Department of Psychiatry and Human Behavior Faculty Papers

We investigated whether pretreatment characteristics and measures of outcome differed for alcohol-, cocaine-, and multisubstance-dependent patients receiving outpatient substance abuse treatment. One hundred and forty substance dependent individuals (32 alcohol, 76 cocaine, and 32 multisubstance) enrolled in a 12-week outpatient treatment program were compared across measures of addiction severity, personality, and treatment-readiness at admission. In-treatment, end-of-treatment and 9-month follow-up assessments of treatment outcome were then compared across the three groups. Outcome measures included reduction in problem severity, abstinence, retention, number of sessions attended, dropout, and counselor and patient ratings of treatment benefit. At admission, the multisubstance group had a higher …

Developing A Pediatric Oral Health Therapist To Help Address Oral Health Disparities Among Children, David A. Nash

Oral Health Science Faculty Publications

Oral Health in America: A Report of the Surgeon General documented the profound and significant disparities that exist in the oral health of children in the United States. Recently, the country has been issued a National Call to Action to Promote Oral Health, under the leadership of the Office of the Surgeon General. Among the significant factors contributing to the disparities problem is the access to oral health care by disadvantaged populations. There are inadequate numbers of dentists able and willing to treat children, particularly poor and minority children. In the early part of the twentieth century, New Zealand …

Making Tough Decisions, Karen A. Karlowicz

Ellmer School of Nursing Faculty Publications

This article focuses on the aspect of critical thinking in making tough decisions in life. Advances in urology have resulted in a range of therapies for many urologic diseases and disorders. Patients need information about each treatment, and the time to fully consider the effect of a given therapy on their overall health. Keep in mind that patients who are empowered to make decisions about their health care are more likely to comply with the treatment plan. Likewise the author urges readers to use their critical thinking skills to solve the clinical problems they are confronted with daily.

Ethical Dilemmas In Retrospective Studies On Genital Surgery In The Treatment Of Intersexual Infants, Sharon Sytsma

Faculty Articles, Papers, and Other Scholarship

Intersexual infants and infants with other genital abnormalities often receive genital surgery for sex assignment or for normalizing purposes. The wisdom and beneficence of these practices have been questioned by intersexual individuals, support groups, some doctors, and the media. Because the practices have been developed without long-term studies to evaluate them, pediatric urologists and parents of such children must face decisions with very little guidance from empirical support. In the face of ignorance about what is really the best medical response to intersexuality or genital abnormalities, some have argued for a moratorium on infant genital surgery until empirical studies are …

Provision Of 24 Hour Acute Neurology Care By Neurologists: Manpower Requirements In The Uk., C. Carroll, J. Zajicek

Peninsula Medical School

OBJECTIVES: The ABN has published standards of care for patients with acute neurological disease. Derriford Hospital provides a 24 hour neurology intake service to a population of 500,000 with the equivalent of four consultants, three specialist registrars (SpRs), and four senior house officers (SHOs) with a 37 bed ward. The authors undertook a prospective study of all neurology admissions to enable calculation of manpower necessary to meet the ABN guidelines. METHODS: All admissions to the neurology department were analysed prospectively for a three month period (March to May 2002). RESULTS: There were 629 admissions (equating to 2500 per year); data …

Stroke In Devon: Knowledge Was Good, But Action Was Poor., C. Carroll, J. Hobart, C. Fox, L. Teare, J. Gibson

Peninsula Medical School

BACKGROUND AND AIM: Effective implementation of early treatment strategies for stroke requires prompt admission to hospital. There are several reasons for delayed admission. Good awareness should facilitate early admission. We identified local targets for education. METHODS: Four groups, each of 40 people, completed questionnaires to determine their knowledge of stroke symptoms and risk factors, and the action they took or would take in the event of a stroke. The groups were: patients with a diagnosis of stroke or TIA (within 48 hrs of admission); patients at risk of stroke; the general population; and nurses. RESULTS: Forty per cent of stroke …

Determinants Of Satisfaction With An Automated Alcohol Evaluation Program., Daniel Z Lieberman

Psychiatry and Behavioral Sciences Faculty Publications

High rates of untreated mental illness cause serious health problems in the United States and worldwide. The use of computer-administered therapy has the potential to increase access to mental health care for certain patient populations. An online version of an alcohol check-up was developed that guided subjects through a series of standardized questionnaires, and provided them with feedback designed to enhance their appreciation of the negative aspects of their alcohol use. Ratings of the helpfulness of the questionnaires were evaluated in order to determine the characteristics of individuals who would potentially benefit from an automated substance abuse intervention, and to …

Content And Criterion Validity Evaluation Of National Public Health Performance Standards Measurement Instruments., Joyce Beaulieu, F. Douglas Scutchfield, Ann V. Kelly

Preventive Medicine and Environmental Health Faculty Publications

OBJECTIVE: The Centers for Disease Control and Prevention's National Public Health Performance Standards Program (NPHPSP) has developed instruments to measure the performance of local and state public health departments on the 10 "Essential Services of Public Health," which have been tested in several states. This article is a report of the evaluation of the content and criterion validity of the local public health performance assessment instrument, and the content validity of the state public health performance assessment instrument.

METHODS: Health department performance is measured using a set of indicators developed for the 10 Essential Services of Public Health and a …

Melanoma And Seborrheic Keratosis Differentiation Using Texture Features, Srinivas V. Deshabhoina, Scott E. Umbaugh, William V. Stoecker, Randy Hays Moss, Subhashini K. Srinivasan

Chemistry Faculty Research & Creative Works

Purpose: To explore texture features in two-dimensional images to differentiate seborrheic keratosis from melanoma.

Methods: A systematic approach to consistent classification of skin tumors is described. Texture features, based on the second-order histogram, were used to identify the features or a combination of features that could consistently differentiate a malignant skin tumor (melanoma) from a benign one (seborrheic keratosis). Two hundred and seventy-one skin tumor images were separated into training and test sets for accuracy and consistency. Automatic induction was applied to generate classification rules. Data analysis and modeling tools were used to gain further insight into the feature space. …

Depressive Deficits In Forgetting, Paula T. Hertel, M. Gerstle

Psychology Faculty Research

The aim of this study was to investigate whether difficulties in forgetting (like difficulties in remembering) are associated with depressive states. First, dysphoric and nondysphoric students learned 40 word pairs, each consisting of a positive or negative adjective and a neutral noun (target). Next, the students practiced responding with some targets and suppressing others, when given the adjective as cue, for a varied number of repetitions. On the final test, they were told to disregard the prior instruction to suppress and to recall the target associated with every cue. Compared with nondysphoric students, dysphoric students recalled similar percentages of targets …

Interpreting Hemoglobin And Water Concentration, Oxygen Saturation, And Scattering Measured In Vivo By Near-Infrared Breast Tomography, Subhadra Srinivasan, Brian W. Pogue, Shudong Jiang, Hamid Dehghani, Christine Kogel, Sandra Soho, Jennifer J. Gibson, Tor D. Tosteson, Steven P. Poplack, Keith D. Paulsen

Dartmouth Scholarship

Near-infrared spectroscopic tomography was used to measure the properties of 24 mammographically normal breasts to quantify whole-breast absorption and scattering spectra and to evaluate which tissue composition characteristics can be determined from these spectra. The absorption spectrum of breast tissue allows quantification of (i) total hemoglobin concentration, (ii) hemoglobin oxygen saturation, and (iii) water concentration, whereas the scattering spectrum provides information about the size and number density of cellular components and structural matrix elements. These property data were tested for correlation to demographic information, including subject age, body mass index, breast size, and radiographic …

Transcriptional Inhibition Of Type I Collagen Gene Expression In Scleroderma Fibroblasts By The Antineoplastic Drug Ecteinascidin 743., Natalia Louneva, Biagio Saitta, David J Herrick, Sergio A. Jimenez

Department of Medicine Faculty Papers

We previously showed that COL1A1 expression is up-regulated at the transcriptional level in systemic sclerosis (SSc) fibroblasts and that the CCAAT-binding factor (CBF) is involved in this increased expression. Ecteinascidin 743 (ET-743) is a chemotherapeutic agent that binds with sequence specificity to the minor groove of DNA and inhibits CBF-mediated transcriptional activation of numerous genes. Therefore, we examined the effects of ET-743 on the increased COL1A1 expression in SSc fibroblasts. The drug caused a potent and dose-dependent inhibition of type I collagen biosynthesis, which reached 70-90% at 700 pM without affecting cell viability. The same drug concentration caused 60-80% reduction …

Multijurisdictional Approach To Biosurveillance, Kansas City., Mark A Hoffman, Tiffany H Wilkinson, Aaron Bush, Wayne Myers, Ron G Griffin, Gerald L Hoff, Rex Archer

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.

The Location Of The Mental Foramen In A Selected Malay Population, Wei Cheong Ngeow

Research Publications (2000 to 2005)

Knowledge of the position of the mental foramen is important both when administering regional anesthesia and performing periapical surgery in the mental region of the mandible. This study determines the position of the mental foramen in a selected Malay population. One hundred and sixty nine panoramic radiographs of Malay patients retrieved from a minor oral surgery waiting list were selected to identify the normal range for the position of the mental foramen. The foramen was not included in the study if there was any mandibular tooth missing between the lower left and right first molars (36-46). The findings indicated the …

Organizational Characteristics And Restraint Use For Hospitalized Nursing Home Residents., Meg Bourbonniere, Neville E. Strumpf, Lois K. Evans, Greg Maislin

College of Nursing Faculty Papers & Presentations

OBJECTIVES: To examine the effect of organizational characteristics on physical restraint use for hospitalized nursing home residents.

DESIGN: Secondary analysis of data obtained between 1994 to 1997 in a prospective phase lag design experiment using an advanced practice nurse (APN) intervention aimed at reducing physical restraint for a group of hospitalized nursing home residents.

SETTING: Eleven medical and surgical units in one 600-bed teaching hospital.

PARTICIPANTS: One hundred seventy-four nursing home residents aged 61 to 100, hospitalized for a total of 1,085 days.

MEASUREMENTS: Physical restraint use, APN intervention, age, perceived fall risk, behavioral phenomena, perceived treatment interference, mental state, …

Genetic Polymorphisms Of The Interleukin-1 Gene And Early Marginal Bone Loss Around Endosseous Dental Implants, Hitomi Shimpuku, Yasuhiro Nosaka, Tatsuya Kawamura, Yoichi Tachi, Mitsuko Shinohara, Kiyoshi Ohura

Faculty, Staff and Student Publications

Dental implant surgery commonly proceeds in two stages. It is generally accepted that bone loss around implants does not occur at stage-II surgery because implants do not receive mechanical loading. However, early marginal bone loss around implants occasionally does occur during the healing period. Genetic polymorphisms in the interleukin-1 (IL-1) gene have been reported to be important for bone homeostasis and susceptibility to bone disease. We therefore investigated whether the idiopathic early marginal bone loss around implants is related to polymorphisms in the IL-1 gene. We performed a case-control study. Patients demonstrating marginal bone loss around implants at stage-II surgery …

Gaze-Centered Updating Of Visual Space In Human Parietal Cortex., W Pieter Medendorp, Herbert C Goltz, Tutis Vilis, J Douglas Crawford

Brain and Mind Institute Researchers' Publications

Single-unit recordings have identified a region in the posterior parietal cortex (PPC) of the monkey that represents and updates visual space in a gaze-centered frame. Here, using event-related functional magnetic resonance imaging, we identified an analogous bilateral region in the human PPC that shows contralateral topography for memory-guided eye movements and arm movements. Furthermore, when eye movements reversed the remembered horizontal target location relative to the gaze fixation point, this PPC region exchanged activity across the two cortical lobules. This shows that the human PPC dynamically updates the spatial goals for action in a gaze-centered frame.

Use Of In Vivo-Induced Antigen Technology (Iviat) To Identify Genes Uniquely Expressed During Human Infection With Vibrio Cholerae, Long Hang, Manohar John, Muhammad Asaduzzaman, Emily A. Bridges, Cecily Vanderspurt, Thomas J. Kirn, Ronald K. Taylor

Dartmouth Scholarship

In vivo-induced antigen technology is a method to identify proteins expressed by pathogenic bacteria during human infection. Sera from 10 patients convalescing from cholera infection in Bangladesh were pooled, adsorbed against in vitro-grown El Tor Vibrio cholerae O1, and used to probe a genomic expression library in Escherichia coli constructed from El Tor V. cholerae O1 strain N16961. We identified 38 positive clones in the screen, encoding pili (PilA and TcpA), cell membrane proteins (PilQ, MshO, MshP, and CapK), methyl-accepting chemotaxis proteins, chemotaxis and motility proteins (CheA and CheR), a quorum-sensing protein (LuxP), and four hypothetical proteins. Analysis of immune …

The Triterpenoid Cddo Inhibits Expression Of Matrix Metalloproteinase-1, Matrix Metalloproteinase-13 And Bcl-3 In Primary Human Chondrocytes, Sarah Elliott, Ezra Hays, Michael Mayor, Michael Sporn, Matthew P. Vincenti

Dartmouth Scholarship

A synthetic triterpenoid, 2-cyano-3,12-dioxoolean-1,9-dien-28-oic acid (CDDO), has been reported to have anti-inflammatory properties and to decrease the interleukin-1 (IL-1)-induced expression of matrix metalloproteinase-1 (MMP-1) and MMP-13. We have shown previously that IL-1 induces expression of the inhibitor of NF-κB (IκB) family member Bcl-3, and that this contributes to MMP-1 expression. To quantify the effects of CDDO on IL-1-induced MMP-1, MMP-13 and Bcl-3 expression, we stimulated the chondrosarcoma cell line SW-1353 and human primary chondrocytes with IL-1, in the presence or absence of CDDO. Harvested RNA was subjected to quantitative real-time reverse-transcriptase polymerase chain reaction. In SW-1353 cells, 300 nM CDDO …

A Brief Guide To The Selection Of Quality Of Life Instrument., Michael E. Hyland

School of Psychology

There are numerous quality of life (QOL) scales. Because QOL experts are often partial to their own scales, researchers need to be able to select scales for themselves. Scales best suited for longitudinal purposes (clinical trials and audit) have different properties to those suited for cross-sectional studies (population and correlational studies and clinical use). The reason and logic of these differences is explained. For longitudinal use, researchers need to consider the relationship between item set, population and treatment; scales can be short, floor and ceiling effects must be avoided, and there should be extended response options. For cross-sectional use scales …

The Lateral Occipital Complex Subserves The Perceptual Persistence Of Motion-Defined Groupings., Susanne Ferber, G Keith Humphrey, Tutis Vilis

Brain and Mind Institute Researchers' Publications

How are the bits and pieces of retinal information assembled and integrated to form the coherent objects that we see? One long-established principle is that elements that move as a group are linked together. For instance a fragmented line-drawing of an object, placed on a background of randomly distributed short lines, can be impossible to see. But if the object moves relative to the background, its shape is instantly recognized. Even after the motion stops, the percept of the object persists briefly before it fades into the background of random lines. Where in the brain does the percept of the …

Compromised Constitutions: The Iranian Experience With The 1918 Influenza Pandemic., Amir Afkhami

Psychiatry and Behavioral Sciences Faculty Publications

The global demographic impact of the 1918-19 influenza pandemic continues to fascinate researchers and scholars. This paper examines the social and demographic effects of this outbreak on Iranian society, through a comprehensive investigation of the modes of transmission and propagation, mortality rates, and other distinctive features of the region, and reveals the importance of taking a country's unique sociopolitical settings into account. Iran was one of the regions hit hardest by the pandemic, with mortality rates significantly higher than in most regions of the world. Though globally the victims of influenza lived primarily in urban areas, it was Iran's rural …

Crystal Structure Of The Sars Protein From Staphylococcus Aureus, Ronggui Li, Adhar C. Manna, Shaodong Dai, Ambrose L. Cheung, Gongyi Zhang

Dartmouth Scholarship

The expression of virulence determinants in Staphylococcus aureus is controlled by global regulatory loci (e.g., sarA and agr). One of these determinants, protein A (spa), is activated by sarS, which encodes a 250-residue DNA-binding protein. Genetic analysis indicated that the agr locus likely mediates spa repression by suppressing the transcription of sarS. Contrary to SarA and SarR, which require homodimer formation for proper function, SarS is unusual within the SarA protein family in that it contains two homologous halves, with each half sharing sequence similarity to SarA and SarR. Here we report the 2.2 Å …

Children With Disturbances In Sensory Processing: A Pilot Study Examining The Role Of The Parasympathetic Nervous System., Roseann C. Schaaf, Lucy Jane Miller, Duncan Seawell, Shannon O'Keefe

Department of Occupational Therapy Faculty Papers

This study was a preliminary investigation of parasympathetic nervous system (PNS) functioning in children with disturbances in sensory processing. The specific aims of this study were to (1) provide preliminary data about group differences in parasympathetic functions, as measured by the vagal tone index, between children with disturbances in sensory processing and those without; (2) determine effect size and power needed for future studies; and (3) to lay the foundation for further examination of the relations of parasympathetic functioning and functional behavior in children with disturbances in sensory processing. Participants were 15 children, nine with disturbances in sensory processing and …

Adolescent Violence Prevention: A Case Presentation, Hatim A. Omar, Joan Griffith

Pediatrics Faculty Publications

Violence in adolescence has seen an increase since the 1990s with dramatic statistics on violent death and risk behaviors. School violence has been focused upon by a huge media coverage of especially violent cases that could have had some endemic consequences worldwide. We present a case of a 14 year old white male with change in school behavior, strategies for the case investigation, its results, and long term prevention. Other research has shown that preventive measures during pregnancy, infancy and childhood can prevent adolescent and adult delinquency.