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A Systematic Review Of Ptsd Prevalence And Trajectories In Dsm-5 Defined Trauma Exposed Populations: Intentional And Non-Intentional Traumatic Events, Patcho N. Santiago, Robert J. Ursano, Christine L. Gray, Robert S. Pynoos, David Spiegel, Roberto Lewis-Fernandez, Matthew Friedman, Carol S. Fullerton Apr 2013

A Systematic Review Of Ptsd Prevalence And Trajectories In Dsm-5 Defined Trauma Exposed Populations: Intentional And Non-Intentional Traumatic Events, Patcho N. Santiago, Robert J. Ursano, Christine L. Gray, Robert S. Pynoos, David Spiegel, Roberto Lewis-Fernandez, Matthew Friedman, Carol S. Fullerton

Dartmouth Scholarship

Objective: We conducted a systematic review of the literature to explore the longitudinal course of PTSD in DSM-5-defined trauma exposed populations to identify the course of illness and recovery for individuals and populations experiencing PTSD.

Methods: We reviewed the published literature from January 1, 1998 to December 31, 2010 for longitudinal studies of directly exposed trauma populations in order to: (1) review rates of PTSD in the first year after a traumatic event; (2) examine potential types of proposed DSM-5 direct trauma exposure (intentional and non-intentional); and (3) identify the clinical course of PTSD (early onset, later onset, chronicity, remission, …


Side Chain Requirements For Affinity And Specificity In D5, An Hiv-1 Antibody Derived From The Vh1-69 Germline Segment, Alex Stewart, Joseph S. Harrison, Lauren K. Regula, Jonathan R. Lai Apr 2013

Side Chain Requirements For Affinity And Specificity In D5, An Hiv-1 Antibody Derived From The Vh1-69 Germline Segment, Alex Stewart, Joseph S. Harrison, Lauren K. Regula, Jonathan R. Lai

College of the Pacific Faculty Articles

BACKGROUND: Analysis of factors contributing to high affinity antibody-protein interactions provides insight into natural antibody evolution, and guides the design of antibodies with new or enhanced function. We previously studied the interaction between antibody D5 and its target, a designed protein based on HIV-1 gp41 known as 5-Helix, as a model system [Da Silva, G. F.; Harrison, J. S.; Lai, J. R., Biochemistry, 2010, 49, 5464-5472]. Antibody D5 represents an interesting case study because it is derived from the VH1-69 germline segment; this germline segment is characterized by a hydrophobic second heavy chain complementarity determining region (HCDR2) that constitutes the …


Natural Variation In Fc Glycosylation Of Hiv-Specific Antibodies Impacts Antiviral Activity, Margaret E. Ackerman, Max Crispin, Xiaojie Yu, Kavitha Baruah, Austin W. Boesch, David J. Harvey, Anne-Sophie Dugast, Erin L. Heizen, Altan Ercan, Ickwon Choi, Hendrick Streeck, Peter A. Nigrovic, Chris Bailey-Kellogg, Chris Scanlan, Galit Alter Apr 2013

Natural Variation In Fc Glycosylation Of Hiv-Specific Antibodies Impacts Antiviral Activity, Margaret E. Ackerman, Max Crispin, Xiaojie Yu, Kavitha Baruah, Austin W. Boesch, David J. Harvey, Anne-Sophie Dugast, Erin L. Heizen, Altan Ercan, Ickwon Choi, Hendrick Streeck, Peter A. Nigrovic, Chris Bailey-Kellogg, Chris Scanlan, Galit Alter

Dartmouth Scholarship

While the induction of a neutralizing antibody response against HIV remains a daunting goal, data from both natural infection and vaccine-induced immune responses suggest that it may be possible to induce antibodies with enhanced Fc effector activity and improved antiviral control via vaccination. However, the specific features of naturally induced HIV-specific antibodies that allow for the potent recruitment of antiviral activity and the means by which these functions are regulated are poorly defined. Because antibody effector functions are critically dependent on antibody Fc domain glycosylation, we aimed to define the natural glycoforms associated with robust Fc-mediated antiviral activity. We demonstrate …


Geographic Variation In Chin Shape Challenges The Universal Facial Attractiveness Hypothesis, Zaneta M. Thayer, Seth D. Dobson Apr 2013

Geographic Variation In Chin Shape Challenges The Universal Facial Attractiveness Hypothesis, Zaneta M. Thayer, Seth D. Dobson

Dartmouth Scholarship

The universal facial attractiveness (UFA) hypothesis proposes that some facial features are universally preferred because they are reliable signals of mate quality. The primary evidence for this hypothesis comes from cross-cultural studies of perceived attractiveness. However, these studies do not directly address patterns of morphological variation at the population level. An unanswered question is therefore: Are universally preferred facial phenotypes geographically invariant, as the UFA hypothesis implies? The purpose of our study is to evaluate this often overlooked aspect of the UFA hypothesis by examining patterns of geographic variation in chin shape. We collected symphyseal outlines from 180 recent human …


Glucose Stimulation Induces Dynamic Change Of Mitochondrial Morphology To Promote Insulin Secretion In The Insulinoma Cell Line Ins-1e., Bong Sook Jhun, Hakjoo Lee, Zheng-Gen Jin, Yisang Yoon Apr 2013

Glucose Stimulation Induces Dynamic Change Of Mitochondrial Morphology To Promote Insulin Secretion In The Insulinoma Cell Line Ins-1e., Bong Sook Jhun, Hakjoo Lee, Zheng-Gen Jin, Yisang Yoon

Center for Translational Medicine Faculty Papers

Fission and fusion of mitochondrial tubules are the major processes regulating mitochondrial morphology. However, the physiological significance of mitochondrial shape change is poorly understood. Glucose-stimulated insulin secretion (GSIS) in pancreatic β-cells requires mitochondrial ATP production which evokes Ca(2+) influx through plasma membrane depolarization, triggering insulin vesicle exocytosis. Therefore, GSIS reflects mitochondrial function and can be used for evaluating functional changes associated with morphological alterations of mitochondria. Using the insulin-secreting cell line INS-1E, we found that glucose stimulation induced rapid mitochondrial shortening and recovery. Inhibition of mitochondrial fission through expression of the dominant-negative mutant DLP1-K38A eliminated this dynamic mitochondrial shape change …


Discovery Of Molecular Associations Among Aging, Stem Cells, And Cancer Based On Gene Expression Profiling., Xiaosheng Wang Apr 2013

Discovery Of Molecular Associations Among Aging, Stem Cells, And Cancer Based On Gene Expression Profiling., Xiaosheng Wang

Journal Articles: Genetics, Cell Biology & Anatomy

The emergence of a huge volume of "omics" data enables a computational approach to the investigation of the biology of cancer. The cancer informatics approach is a useful supplement to the traditional experimental approach. I reviewed several reports that used a bioinformatics approach to analyze the associations among aging, stem cells, and cancer by microarray gene expression profiling. The high expression of aging- or human embryonic stem cell-related molecules in cancer suggests that certain important mechanisms are commonly underlying aging, stem cells, and cancer. These mechanisms are involved in cell cycle regulation, metabolic process, DNA damage response, apoptosis, p53 signaling …


A Magnetic-Resonance-Imaging-Compatible Remote Catheter Navigation System., Mohammad Ali Tavallaei, Yogesh Thakur, Syed Haider, Maria Drangova Apr 2013

A Magnetic-Resonance-Imaging-Compatible Remote Catheter Navigation System., Mohammad Ali Tavallaei, Yogesh Thakur, Syed Haider, Maria Drangova

Medical Biophysics Publications

A remote catheter navigation system compatible with magnetic resonance imaging (MRI) has been developed to facilitate MRI-guided catheterization procedures. The interventionalist's conventional motions (axial motion and rotation) on an input catheter - acting as the master - are measured by a pair of optical encoders, and a custom embedded system relays the motions to a pair of ultrasonic motors. The ultrasonic motors drive the patient catheter (slave) within the MRI scanner, replicating the motion of the input catheter. The performance of the remote catheter navigation system was evaluated in terms of accuracy and delay of motion replication outside and within …


The Tweak Receptor Fn14 Is A Therapeutic Target In Melanoma: Immunotoxins Targeting Fn14 Receptor For Malignant Melanoma Treatment., Hong Zhou, Suhendan Ekmekcioglu, John W Marks, Khalid A Mohamedali, Kaushal Asrani, Keeley K Phillips, Sharron A N Brown, Emily Cheng, Michele B Weiss, Walter N Hittelman, Nhan L Tran, Hideo Yagita, Jeffrey A Winkles, Michael G Rosenblum Apr 2013

The Tweak Receptor Fn14 Is A Therapeutic Target In Melanoma: Immunotoxins Targeting Fn14 Receptor For Malignant Melanoma Treatment., Hong Zhou, Suhendan Ekmekcioglu, John W Marks, Khalid A Mohamedali, Kaushal Asrani, Keeley K Phillips, Sharron A N Brown, Emily Cheng, Michele B Weiss, Walter N Hittelman, Nhan L Tran, Hideo Yagita, Jeffrey A Winkles, Michael G Rosenblum

Department of Cancer Biology Faculty Papers

Fibroblast growth factor-inducible protein 14 (Fn14), the cell surface receptor for tumor necrosis factor-like weak inducer of apoptosis (TWEAK), is overexpressed in various human solid tumor types and can be a negative prognostic indicator. We detected Fn14 expression in ∼60% of the melanoma cell lines we tested, including both B-Raf WT and B-Raf(V600E) lines. Tumor tissue microarray analysis indicated that Fn14 expression was low in normal skin, but elevated in 173/190 (92%) of primary melanoma specimens and in 86/150 (58%) of melanoma metastases tested. We generated both a chemical conjugate composed of the recombinant gelonin (rGel) toxin and the anti-Fn14 …


Cultural Diversity And Views On Alzheimer Disease In Older African Americans., Barry W. Rovner, Robin J. Casten, Lynn F. Harris Apr 2013

Cultural Diversity And Views On Alzheimer Disease In Older African Americans., Barry W. Rovner, Robin J. Casten, Lynn F. Harris

Department of Psychiatry and Human Behavior Faculty Papers

Cultural constructs prevalent in older African Americans may influence their risk perceptions and knowledge of Alzheimer disease (AD). To examine this issue, we administered 3 sociocultural scales, the AD Knowledge Scale, and a Risk Perception questionnaire to 271 older African Americans who were recruited from a large community senior center and local churches. Higher Present Time Orientation was significantly related to perceptions of having little control over risks to health (P=0.004), God's Will in determining AD (P=0.001), and lower AD knowledge (P


Neuroinflammation And Psychiatric Illness, Souhel Najjar, Daniel M. Pearlman, Kenneth Alper, Amanda Najjar, Orrin Devinsky Apr 2013

Neuroinflammation And Psychiatric Illness, Souhel Najjar, Daniel M. Pearlman, Kenneth Alper, Amanda Najjar, Orrin Devinsky

Dartmouth Scholarship

Multiple lines of evidence support the pathogenic role of neuroinflammation in psychiatric illness. While systemic autoimmune diseases are well-documented causes of neuropsychiatric disorders, synaptic autoimmune encephalitides with psychotic symptoms often go under-recognized. Parallel to the link between psychiatric symptoms and autoimmunity in autoimmune diseases, neuroimmunological abnormalities occur in classical psychiatric disorders (for example, major depressive, bipolar, schizophrenia, and obsessive-compulsive disorders). Investigations into the pathophysiology of these conditions traditionally stressed dysregulation of the glutamatergic and monoaminergic systems, but the mechanisms causing these neurotransmitter abnormalities remained elusive. We review the link between autoimmunity and neuropsychiatric disorders, and the human and experimental evidence …


Humans And Dolphins: An Exploration Of Anthropocentrism In Applied Environmental Ethics, Thomas I. White Apr 2013

Humans And Dolphins: An Exploration Of Anthropocentrism In Applied Environmental Ethics, Thomas I. White

Management Faculty Works

This article argues that one of the reasons that the unethical character of much human-dolphin contact is not more apparent to ethicists is that discussion of central issues has been colored with unintentional species bias. This article points out weaknesses in the traditional approach to discussing topics that bear on the question of whether dolphins have moral standing. It demonstrates that discussions of the cognitive abilities of dolphins by Steven Wise and Alasdair MacIntyre are unintentionally but fundamentally anthropocentric-largely because the authors are not familiar with enough of the scientific literature about dolphins to draw the conclusions that they do.


Nutrition Intervention To Decrease Symptoms In Patients With Advanced Heart Failure, Terry A. Lennie, Debra K. Moser, Martha J. Biddle, Darlene Welsh, Geza G. Bruckner, D. Travis Thomas, Mary Kay Rayens, Alison L. Bailey Apr 2013

Nutrition Intervention To Decrease Symptoms In Patients With Advanced Heart Failure, Terry A. Lennie, Debra K. Moser, Martha J. Biddle, Darlene Welsh, Geza G. Bruckner, D. Travis Thomas, Mary Kay Rayens, Alison L. Bailey

Nursing Faculty Publications

For a majority of patients with advanced heart failure, there is a need for complementary, non-pharmacologic interventions that could be easily implemented by health care providers to provide palliative care. Three major pathologic pathways underlying heart failure symptoms have been identified: fluid overload, inflammation, and oxidative stress. Prior research has demonstrated that three nutrients-sodium, omega-3 fatty acids, and lycopene-can alter these pathologic pathways. Therefore, the purposes of this study are to test the effects of a 6-month nutrition intervention of dietary sodium reduction combined with supplementation of lycopene and omega-3 fatty acids on heart failure symptoms, health-related quality of life, …


Intra-Tumoral Heterogeneity In Metastatic Potential And Survival Signaling Between Iso-Clonal Hct116 And Hct116b Human Colon Carcinoma Cell Lines., Sanjib Chowdhury, Melanie Ongchin, Elizabeth Sharratt, Ivan Dominguez, J. Wang, Michael G. Brattain, Ashwani Rajput Apr 2013

Intra-Tumoral Heterogeneity In Metastatic Potential And Survival Signaling Between Iso-Clonal Hct116 And Hct116b Human Colon Carcinoma Cell Lines., Sanjib Chowdhury, Melanie Ongchin, Elizabeth Sharratt, Ivan Dominguez, J. Wang, Michael G. Brattain, Ashwani Rajput

Journal Articles: Eppley Institute

BACKGROUND: Colorectal cancer (CRC) metastasis is a leading cause of cancer-related deaths in the United States. The molecular mechanisms underlying this complex, multi-step pathway are yet to be completely elucidated. Recent reports have stressed the importance of intra-tumoral heterogeneity in the development of a metastatic phenotype. The purpose of this study was to characterize the intra-tumoral phenotypic heterogeneity between two iso-clonal human colon cancer sublines HCT116 and HCT116b on their ability to undergo metastatic colonization and survive under growth factor deprivation stress (GFDS).

MATERIALS AND METHODS: HCT116 and HCT116b cells were transfected with green fluorescence protein and subcutaneously injected into …


Intracranial Injection Of Aav Expressing Nep But Not Ide Reduces Amyloid Pathology In App+Ps1 Transgenic Mice, Nikisha Carty, Kevin R. Nash, Milene Brownlow, Dana Cruite, Donna M. Wilcock, Maj-Linda B. Selenica, Daniel C. Lee, Marcia N. Gordon, Dave Morgan Mar 2013

Intracranial Injection Of Aav Expressing Nep But Not Ide Reduces Amyloid Pathology In App+Ps1 Transgenic Mice, Nikisha Carty, Kevin R. Nash, Milene Brownlow, Dana Cruite, Donna M. Wilcock, Maj-Linda B. Selenica, Daniel C. Lee, Marcia N. Gordon, Dave Morgan

Sanders-Brown Center on Aging Faculty Publications

The accumulation of β-amyloid peptides in the brain has been recognized as an essential factor in Alzheimer's disease pathology. Several proteases, including Neprilysin (NEP), endothelin converting enzyme (ECE), and insulin degrading enzyme (IDE), have been shown to cleave β-amyloid peptides (Aβ). We have previously reported reductions in amyloid in APP+PS1 mice with increased expression of ECE. In this study we compared the vector-induced increased expression of NEP and IDE. We used recombinant adeno-associated viral vectors expressing either native forms of NEP (NEP-n) or IDE (IDE-n), or engineered secreted forms of NEP (NEP-s) or IDE (IDE-s). In a six-week study, immunohistochemistry …


Effectiveness Of A Motivational Interviewing Intervention On Weight Loss, Physical Activity And Cardiovascular Disease Risk Factors: A Randomised Controlled Trial With A 12-Month Post-Intervention Follow-Up., Sarah J. Hardcastle, Adrian H. Taylor, Martin P. Bailey, Robert A. Harley, Martin S. Hagger Mar 2013

Effectiveness Of A Motivational Interviewing Intervention On Weight Loss, Physical Activity And Cardiovascular Disease Risk Factors: A Randomised Controlled Trial With A 12-Month Post-Intervention Follow-Up., Sarah J. Hardcastle, Adrian H. Taylor, Martin P. Bailey, Robert A. Harley, Martin S. Hagger

Peninsula Medical School

BACKGROUND: Intensive diet and physical activity interventions have been found to reduce cardiovascular disease (CVD) risk, but are resource intensive. The American Heart Association recently recommended motivational interviewing (MI) as an effective approach for low-intensity interventions to promote health-related outcomes such as weight loss. However, there is limited research evaluating the long-term effectiveness of MI-based interventions on health-related outcomes associated with CVD risk. The current research evaluated the effectiveness of a six-month low-intensity MI intervention in a UK primary-care setting in maintaining reductions in CVD risk factors at12 months post-intervention. METHODS: Primary-care patients were randomised to an intervention group that …


Using Online Adverts To Increase The Uptake Of Cervical Screening Amongst "Real Eastenders": An Opportunistic Controlled Trial., Ray B. Jones, Mar Soler-Lopez, Daniel Zahra, Judith Shankleman, Esther Trenchard-Mabere Mar 2013

Using Online Adverts To Increase The Uptake Of Cervical Screening Amongst "Real Eastenders": An Opportunistic Controlled Trial., Ray B. Jones, Mar Soler-Lopez, Daniel Zahra, Judith Shankleman, Esther Trenchard-Mabere

School of Nursing and Midwifery

BACKGROUND: Cervical screening uptake has increased as a result of occurrences of cervical cancer in TV 'soap operas' and in real life celebrities such as Jade Goody. Media analysis at the time of Jade Goody's death suggested the NHS did not take sufficient advantage of this opportunity to improve cervical screening rates. Google AdWords has been used to recruit and raise awareness of health but we were not aware of its use to supplement media events. METHODS: This was an opportunistic service evaluation to accompany a cervical cancer storyline in Eastenders (a TV 'soap opera'). We ran an AdWords campaign …


Fuzzy Complex Formation Between The Intrinsically Disordered Prothymosin Α And The Kelch Domain Of Keap1 Involved In The Oxidative Stress Response., Halema Khan, Elio A Cino, Anne Brickenden, Jingsong Fan, Daiwen Yang, Wing-Yiu Choy Mar 2013

Fuzzy Complex Formation Between The Intrinsically Disordered Prothymosin Α And The Kelch Domain Of Keap1 Involved In The Oxidative Stress Response., Halema Khan, Elio A Cino, Anne Brickenden, Jingsong Fan, Daiwen Yang, Wing-Yiu Choy

Biochemistry Publications

Kelch-like ECH-associated protein 1 (Keap1) is an inhibitor of nuclear factor erythroid 2-related factor 2 (Nrf2), a key transcription factor for cytoprotective gene activation in the oxidative stress response. Under unstressed conditions, Keap1 interacts with Nrf2 in the cytoplasm via its Kelch domain and suppresses the transcriptional activity of Nrf2. During oxidative stress, Nrf2 is released from Keap1 and is translocated into the nucleus, where it interacts with the small Maf protein to initiate gene transcription. Prothymosin α (ProTα), an intrinsically disordered protein, also interacts with the Kelch domain of Keap1 and mediates the import of Keap1 into the nucleus …


Tgf-Beta Suppresses Vegfa-Mediated Angiogenesis In Colon Cancer Metastasis., Liying Geng, Anathbandhu Chaudhuri, G. Talmon, James L. Wisecarver, J. Wang Mar 2013

Tgf-Beta Suppresses Vegfa-Mediated Angiogenesis In Colon Cancer Metastasis., Liying Geng, Anathbandhu Chaudhuri, G. Talmon, James L. Wisecarver, J. Wang

Journal Articles: Eppley Institute

The FET cell line, derived from an early stage colon carcinoma, is non-tumorigenic in athymic nude mice. Engineered FET cells that express TGF-α (FETα) display constitutively active EGFR/ErbB signaling. These cells readily formed xenograft tumors in athymic nude mice. Importantly, FETα cells retained their response to TGF-beta-mediated growth inhibition, and, like the parental FET cells, expression of a dominant negative TGF-beta type II receptor (DNRII) in FETα cells (FETα/DNRII) abrogated responsiveness to TGF-beta-induced growth inhibition and apoptosis under stress conditions in vitro and increased metastatic potential in an orthotopic model in vivo, which indicates metastasis suppressor activity of TGF-beta signaling …


Marked Improvement Of Cytotoxic Effects Induced By Docetaxel On Highly Metastatic And Androgen-Independent Prostate Cancer Cells By Downregulating Macrophage Inhibitory Cytokine-1., M Mimeault, Sonny L. Johansson, Surinder K. Batra Mar 2013

Marked Improvement Of Cytotoxic Effects Induced By Docetaxel On Highly Metastatic And Androgen-Independent Prostate Cancer Cells By Downregulating Macrophage Inhibitory Cytokine-1., M Mimeault, Sonny L. Johansson, Surinder K. Batra

Journal Articles: Biochemistry & Molecular Biology

BACKGROUND: Overexpression of macrophage inhibitory cytokine-1 (MIC-1) frequently occurs during the progression of prostate cancer (PC) to androgen-independent (AI) and metastatic disease states and is associated with a poor outcome of patients.

METHODS: The gain- and loss-of-function analyses of MIC-1 were performed to establish its implications for aggressive and chemoresistant phenotypes of metastatic and AI PC cells and the benefit of its downregulation for reversing docetaxel resistance.

RESULTS: The results have indicated that an enhanced level of secreted MIC-1 protein in PC3 cells is associated with their acquisition of epithelial-mesenchymal transition features and higher invasive capacity and docetaxel resistance. Importantly, …


Effectiveness Of A Motivational Interviewing Intervention On Weight Loss, Physical Activity And Cardiovascular Disease Risk Factors: A Randomised Controlled Trial With A 12-Month Post-Intervention Follow-Up., Sarah J. Hardcastle, Adrian H. Taylor, Martin P. Bailey, Robert A. Harley, Martin S. Hagger Mar 2013

Effectiveness Of A Motivational Interviewing Intervention On Weight Loss, Physical Activity And Cardiovascular Disease Risk Factors: A Randomised Controlled Trial With A 12-Month Post-Intervention Follow-Up., Sarah J. Hardcastle, Adrian H. Taylor, Martin P. Bailey, Robert A. Harley, Martin S. Hagger

Peninsula Medical School

BACKGROUND: Intensive diet and physical activity interventions have been found to reduce cardiovascular disease (CVD) risk, but are resource intensive. The American Heart Association recently recommended motivational interviewing (MI) as an effective approach for low-intensity interventions to promote health-related outcomes such as weight loss. However, there is limited research evaluating the long-term effectiveness of MI-based interventions on health-related outcomes associated with CVD risk. The current research evaluated the effectiveness of a six-month low-intensity MI intervention in a UK primary-care setting in maintaining reductions in CVD risk factors at12 months post-intervention. METHODS: Primary-care patients were randomised to an intervention group that …


Loss Of Fbp1 By Snail-Mediated Repression Provides Metabolic Advantages In Basal-Like Breast Cancer, Chenfang Dong, Tingting Yuan, Yadi Wu, Yifan Wang, Teresa W-M Fan, Sumitra Miriyala, Yiwei Lin, Jun Yao, Jian Shi, Tiebang Kang, Pawel Lorkiewicz, Daret St. Clair, Mien-Chie Hung, B. Mark Evers, Binhua P. Zhou Mar 2013

Loss Of Fbp1 By Snail-Mediated Repression Provides Metabolic Advantages In Basal-Like Breast Cancer, Chenfang Dong, Tingting Yuan, Yadi Wu, Yifan Wang, Teresa W-M Fan, Sumitra Miriyala, Yiwei Lin, Jun Yao, Jian Shi, Tiebang Kang, Pawel Lorkiewicz, Daret St. Clair, Mien-Chie Hung, B. Mark Evers, Binhua P. Zhou

Toxicology and Cancer Biology Faculty Publications

The epithelial-mesenchymal transition (EMT) enhances cancer invasiveness and confers tumor cells with cancer stem cell (CSC)-like characteristics. We show that the Snail-G9a-Dnmt1 complex, which is critical for E-cadherin promoter silencing, is also required for the promoter methylation of fructose-1,6-biphosphatase (FBP1) in basal-like breast cancer (BLBC). Loss of FBP1 induces glycolysis and results in increased glucose uptake, macromolecule biosynthesis, formation of tetrameric PKM2, and maintenance of ATP production under hypoxia. Loss of FBP1 also inhibits oxygen consumption and reactive oxygen species production by suppressing mitochondrial complex I activity; this metabolic reprogramming results in an increased CSC-like property and tumorigenicity by enhancing …


Experimental And Natural Warming Elevates Mercury Concentrations In Estuarine Fish, Jennifer A. Dijkstra, Kate L. Buckman, Darren Ward, David W. Evans, Michele Dionne, Celia Y. Chen Mar 2013

Experimental And Natural Warming Elevates Mercury Concentrations In Estuarine Fish, Jennifer A. Dijkstra, Kate L. Buckman, Darren Ward, David W. Evans, Michele Dionne, Celia Y. Chen

Dartmouth Scholarship

Marine food webs are the most important link between the global contaminant, methylmercury (MeHg), and human exposure through consumption of seafood. Warming temperatures may increase human exposure to MeHg, a potent neurotoxin, by increasing MeHg production as well as bioaccumulation and trophic transfer through marine food webs. Studies of the effects of temperature on MeHg bioaccumulation are rare and no study has specifically related temperature to MeHg fate by linking laboratory experiments with natural field manipulations in coastal ecosystems. We performed laboratory and field experiments on MeHg accumulation under varying temperature regimes using the killifish, Fundulus heteroclitus. Temperature treatments …


Feasibility Of Tomotherapy-Based Image-Guided Radiotherapy To Reduce Aspiration Risk In Patients With Non-Laryngeal And Non-Pharyngeal Head And Neck Cancer, Nam P. Nguyen, Lexie Smith-Raymond, Vincent Vinh-Hung, Paul Vos, Rick Davis, Anand Desai, Thomas Sroka Mar 2013

Feasibility Of Tomotherapy-Based Image-Guided Radiotherapy To Reduce Aspiration Risk In Patients With Non-Laryngeal And Non-Pharyngeal Head And Neck Cancer, Nam P. Nguyen, Lexie Smith-Raymond, Vincent Vinh-Hung, Paul Vos, Rick Davis, Anand Desai, Thomas Sroka

Dartmouth Scholarship

Purpose: The study aims to assess the feasibility of Tomotherapy-based image-guided radiotherapy (IGRT) to reduce the aspiration risk in patients with non-laryngeal and non-hypopharyngeal cancer. A retrospective review of 48 patients undergoing radiation for non-laryngeal and non-hypopharyngeal head and neck cancers was conducted. All patients had a modified barium swallow (MBS) prior to treatment, which was repeated one month following radiotherapy. Mean middle and inferior pharyngeal dose was recorded and correlated with the MBS results to determine aspiration risk.


High-Throughput Phenotyping Of Uropathogenic E. Coli Isolates With Fourier Transform Infrared Spectroscopy., Haitham Alrabiah, Elon Correa, Mathew Upton, Royston Goodacre Mar 2013

High-Throughput Phenotyping Of Uropathogenic E. Coli Isolates With Fourier Transform Infrared Spectroscopy., Haitham Alrabiah, Elon Correa, Mathew Upton, Royston Goodacre

School of Biomedical Sciences

Fourier transform infrared (FT-IR) spectroscopy is an established rapid whole-organism fingerprinting method that generates metabolic fingerprints from bacteria that reflect the phenotype of the microorganism under investigation. However, whilst FT-IR spectroscopy is fast (typically 10 s to 1 min per sample), the approaches for microbial sample preparation can be time consuming as plate culture or shake flasks are used for growth of the organism. We report a new approach that allows micro-cultivation of bacteria from low volumes (typically 200 μL) to be coupled with FT-IR spectroscopy. This approach is fast and easy to perform and gives equivalent data to the …


The Walking Index For Spinal Cord Injury (Wisci/Wisci Ii): Nature, Metric Properties, Use And Misuse., J. F. Ditunno, Jr, P. L. Ditunno, G. Scivoletto, M. Patrick, M. Dijkers, H. Barbeau, A. S. Burns, R. J. Marino, M. Schmidt-Read Mar 2013

The Walking Index For Spinal Cord Injury (Wisci/Wisci Ii): Nature, Metric Properties, Use And Misuse., J. F. Ditunno, Jr, P. L. Ditunno, G. Scivoletto, M. Patrick, M. Dijkers, H. Barbeau, A. S. Burns, R. J. Marino, M. Schmidt-Read

Department of Rehabilitation Medicine Faculty Papers

STUDY DESIGN: Literature review.

OBJECTIVE: To critically review all publications/internet sites that have described/used the Walking Index for Spinal Cord Injury (WISCI II), as a measure of impairment of walking function after spinal cord injury (SCI), in order to identify its psychometric properties, clarify its nature, specify misuse and incorporate the findings in an updated guide.

METHOD: A systematic literature search was done of Ovid MEDLINE, CINAHL, PsychINFO, Cochrane Central Register of Controlled Trials, Scopus and electronic sites using key words: WISCI or WISCI II, SCI, paraplegia/ tetraplegia/ quadriplegia and ambulation/gait/walking. Among 1235 citations retrieved, 154 relevant articles/sites were identified, …


Detection And Quantification Of Methylation In Dna Using Solid-State Nanopores., Jiwook Shim, Gwendolyn I Humphreys, Bala Murali Venkatesan, Jan Marie Munz, Xueqing Zou, Chaitanya Sathe, Klaus Schulten, Farhad Kosari, Ann M Nardulli, George Vasmatzis, Rashid Bashir Mar 2013

Detection And Quantification Of Methylation In Dna Using Solid-State Nanopores., Jiwook Shim, Gwendolyn I Humphreys, Bala Murali Venkatesan, Jan Marie Munz, Xueqing Zou, Chaitanya Sathe, Klaus Schulten, Farhad Kosari, Ann M Nardulli, George Vasmatzis, Rashid Bashir

College of Science & Mathematics Departmental Research

Epigenetic modifications in eukaryotic genomes occur primarily in the form of 5-methylcytosine (5 mC). These modifications are heavily involved in transcriptional repression, gene regulation, development and the progression of diseases including cancer. We report a new single-molecule assay for the detection of DNA methylation using solid-state nanopores. Methylation is detected by selectively labeling methylation sites with MBD1 (MBD-1x) proteins, the complex inducing a 3 fold increase in ionic blockage current relative to unmethylated DNA. Furthermore, the discrimination of methylated and unmethylated DNA is demonstrated in the presence of only a single bound protein, thereby giving a resolution of a single …


Chronic Obstructive Pulmonary Disease: More Imaging, More Phenotyping...Better Care?, Damien Pike, Grace Parraga Mar 2013

Chronic Obstructive Pulmonary Disease: More Imaging, More Phenotyping...Better Care?, Damien Pike, Grace Parraga

Medical Biophysics Publications

No abstract provided.


John Chalmers Dacosta (1863-1933): Restoration Of The Old Operating Table., Madalyn G. Peters, Md, Adam C. Berger, Md, Gordon Schwartz, Md, Mba, Facs, Charles J. Yeo, Md, Scott W. Cowan, Md Mar 2013

John Chalmers Dacosta (1863-1933): Restoration Of The Old Operating Table., Madalyn G. Peters, Md, Adam C. Berger, Md, Gordon Schwartz, Md, Mba, Facs, Charles J. Yeo, Md, Scott W. Cowan, Md

Department of Surgery Gibbon Society Historical Profiles

John Chalmers DaCosta was an influential chairman and the first Samuel D. Gross Professor of Surgery at Jefferson Medical College in Philadelphia. He was well known throughout the field as a skilled surgeon, passionate speaker, and exceptional writer. In addition to countless accomplishments during his career, DaCosta was deeply dedicated to the preservation and commemoration of surgical history. This ideology was exemplified when he set out on a mission to recover the old wooden operating table used by many of his iconic mentors including Samuel D. Gross, Joseph Pancoast, and William W. Keen. This table was originally used for surgical …


The Adipose Tissue Production Of Adiponectin Is Increased In End-Stage Renal Disease., Maria P Martinez Cantarin, Scott A Waldman, Cataldo Doria, Adam M Frank, Warren R Maley, Carlo B Ramirez, Scott W Keith, Bonita Falkner Mar 2013

The Adipose Tissue Production Of Adiponectin Is Increased In End-Stage Renal Disease., Maria P Martinez Cantarin, Scott A Waldman, Cataldo Doria, Adam M Frank, Warren R Maley, Carlo B Ramirez, Scott W Keith, Bonita Falkner

Department of Medicine Faculty Papers

Adiponectin has antidiabetic properties, and patients with obesity, diabetes, and insulin resistance have low plasma adiponectin levels. However, although kidney disease is associated with insulin resistance, adiponectin is elevated in end-stage renal disease. Here we determine whether adipose tissue production of adiponectin is increased in renal disease in a case-control study of 36 patients with end-stage renal disease and 23 kidney donors. Blood and tissue samples were obtained at kidney transplantation and donation. The mean plasma adiponectin level was significantly increased to 15.6 mg/ml in cases compared with 8.4 mg/ml in controls. Plasma levels of the inflammatory adipokines tumor necrosis …


Awareness And Beliefs Regarding Intimate Partner Violence Among First-Year Dental Students, Rhonda J. Everett, Karl Kingsley, Christina A. Demopoulos, Edward E. Herschaft, Christine Lamun, Sheniz Moonie, Timothy J. Bungum, Michelle Chino Mar 2013

Awareness And Beliefs Regarding Intimate Partner Violence Among First-Year Dental Students, Rhonda J. Everett, Karl Kingsley, Christina A. Demopoulos, Edward E. Herschaft, Christine Lamun, Sheniz Moonie, Timothy J. Bungum, Michelle Chino

Environmental & Global Health Faculty Research

Intimate partner violence (IPV) may affect one to four million individuals per year in the United States, with women accounting for the majority of both reported and unreported cases. Dental professionals are in a unique position to identify many types of IPV because injuries to the head and neck may be indicators or predictors of IPV abuse. Fewer than half of dental programs surveyed have reported having IPV-specific curricula, and most dental students surveyed have reported having little experience or training to recognize IPV. Based on this information, this pilot study sought to assess the awareness and beliefs regarding IPV …