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Niels Bergsland, Ferdinand Schweser, Michael G Dwyer, Bianca Weinstock-Guttman, Ralph H B Benedict, Robert Zivadinov
Thalamic white matter (WM) injury in multiple sclerosis (MS) remains relatively poorly understood. Combining multiple imaging modalities, sensitive to different tissue properties, may aid in further characterizing thalamic damage. Forty-five MS patients and 17 demographically-matched healthy controls (HC) were scanned with 3T MRI to obtain quantitative measures of diffusivity and magnetic susceptibility. Participants underwent cognitive evaluation with the Brief International Cognitive Assessment for Multiple Sclerosis battery...
June 19, 2018: Human Brain Mapping
Sivaram Subaya Emani, Catherine K Allan, Tess Forster, Anna C Fisk, Christine Lagrasta, Bistra Zheleva, Peter Weinstock, Ravi R Thiagarajan
Introduction: Although simulation training has been utilized quite extensively in highincome medical environments, its feasibility and effect on team performance in lowresource pediatric Cardiac Intensive Care Unit (CICU) environments has not been demonstrated. We hypothesized that lowfidelity simulationbased crisis resource management training would lead to improvements in team performance in such settings. Methods: In this prospective observational study, the effect of simulation on team dynamics and performance was assessed in 23 healthcare providers in a pediatric CICU in Southeast Asia...
May 2018: Annals of Pediatric Cardiology
Martin A Weinstock, Robert A Lew, Fiona M Shaw
No abstract text is available yet for this article.
June 13, 2018: JAMA Dermatology
Ingrid M Ganske, Noah Schulz, Katie Livingston, Susan Goobie, John G Meara, Mark Proctor, Peter Weinstock
B.Y. was born full term after a large vertex encephalocele was diagnosed prenatally. The unique challenge to repairing B.Y.'s encephalocele was a microcephalic skull and large proportion of likely functional extracranial brain tissue, which would need to be preserved. At Boston Children's Hospital, a simulation-based collaborative presurgical planning and rehearsal process, using both digital and 3D printed models, enabled successful technical completion and outcome of an otherwise inoperable case.
April 2018: Plastic and Reconstructive Surgery. Global Open
Francesca Cignarella, Claudia Cantoni, Laura Ghezzi, Amber Salter, Yair Dorsett, Lei Chen, Daniel Phillips, George M Weinstock, Luigi Fontana, Anne H Cross, Yanjiao Zhou, Laura Piccio
Multiple sclerosis (MS) is more common in western countries with diet being a potential contributing factor. Here we show that intermittent fasting (IF) ameliorated clinical course and pathology of the MS model, experimental autoimmune encephalomyelitis (EAE). IF led to increased gut bacteria richness, enrichment of the Lactobacillaceae, Bacteroidaceae, and Prevotellaceae families and enhanced antioxidative microbial metabolic pathways. IF altered T cells in the gut with a reduction of IL-17 producing T cells and an increase in regulatory T cells...
June 5, 2018: Cell Metabolism
Lisa A Uebelacker, Lauren M Weinstock, Cynthia L Battle, Ana M Abrantes, Ivan W Miller
BACKGROUND: Hatha yoga may be helpful for alleviating depression symptoms. The purpose of this analysis is to determine whether treatment program preference, credibility, or expectancy predict engagement in depression interventions (yoga or a control class) or depression symptom severity over time. METHODS: This is a secondary analysis of a randomized controlled trial (RCT) of hatha yoga vs. a health education control group for treatment of depression. Depressed participants (n = 122) attended up to 20 classes over a period of 10 weeks, and then completed additional assessments after 3 and 6 months...
June 2, 2018: Journal of Affective Disorders
Firuz G Feturi, Matthias Weinstock, Wenchen Zhao, Wei Zhang, Jonas T Schnider, Vasil E Erbas, Sinan Oksuz, Jan A Plock, Lisa Rohan, Alexander M Spiess, Lydia M Ferreira, Mario G Solari, Raman Venkataramanan, Vijay S Gorantla
Mycophenolic acid (MPA), is the active form of the ester prodrug mycophenolate mofetil (MMF). MMF is an FDA approved immunosuppressive drug that has been successfully used in systemic therapy in combination with other agents for the prevention of acute rejection (AR) following solid organ transplantation (SOT) as well as in vascularized composite allotransplantation (VCA). Systemic use of MMF is associated with gastrointestinal adverse effects. Topical delivery of the prodrug could thus provide graft-targeted immunosuppression while minimizing systemic drug exposure...
2018: Frontiers in Surgery
Jesper Hagemeier, Robert Zivadinov, Michael G Dwyer, Paul Polak, Niels Bergsland, Bianca Weinstock-Guttman, Joshua Zalis, Andreas Deistung, Jürgen R Reichenbach, Ferdinand Schweser
In multiple sclerosis, pathological changes of both tissue iron and myelin occur, yet these factors have not been characterized in a longitudinal fashion using the novel iron- and myelin-sensitive quantitative susceptibility mapping (QSM) MRI technique. We investigated disease-relevant tissue changes associated with myelin loss and iron accumulation in multiple sclerosis deep gray matter (DGM) over two years. One-hundred twenty (120) multiple sclerosis patients and 40 age- and sex-matched healthy controls were included in this prospective study...
2018: NeuroImage: Clinical
Patricia Markham Risica, Natalie H Matthews, Laura Dionne, Jennifer Mello, Laura K Ferris, Melissa Saul, Alan C Geller, Francis Solano, John M Kirkwood, Martin A Weinstock
Screening for melanoma may save lives, but may also cause patient distress. One key reason that preventative visual skin examinations for skin cancer are not currently recommended is the inadequate available evidence to assess potential harm to psychosocial wellbeing. We investigated potential psychological harms and benefits of skin examinations by conducting telephone surveys in 2015 of 187 screened participants; all were ≥35 years old. Participants had their skin examined by practitioners who had completed INFORMED, a validated web-based training for detection of skin cancers, particularly melanoma...
June 2018: Preventive Medicine Reports
Mark A Whisman, Regina Miranda, David M Fresco, Richard G Heimberg, Elizabeth L Jeglic, Lauren M Weinstock
Although women demonstrate higher levels of rumination than men, it is unknown whether instruments used to measure rumination have the same psychometric properties for women and men. To examine this question, we evaluated measurement invariance of the brooding and reflection subscales from the Ruminative Responses Scale (RRS) by gender, using data from four samples of undergraduates from three universities within the United States ( N = 4,205). A multigroup confirmatory factor analysis revealed evidence for configural, metric, and scalar invariance of the covariance structure of the 10-item version of the RRS...
May 1, 2018: Assessment
Tyler Lewy, Bo-Young Hong, Barbara Weiser, Harold Burger, Andrew Tremain, George Weinstock, Kathryn Anastos, Michael George
HIV-associated non-AIDS conditions, such as cardiovascular disease, diabetes, osteoporosis, and dementia are more prevalent in older than in young adult HIV-infected subjects. Although the oral microbiome has been studied as a window into pathogenesis in aging populations, its relationship to HIV disease progression, opportunistic infections and HIV-associated non-AIDS conditions is not well understood. We utilized 16S rDNA-based pyrosequencing to compare the salivary microbiome in three groups: 1) Chronically HIV-infected women >50 years old (aging); 2) HIV-infected women < 35 years old (young adult); and 3) HIV-uninfected age-matched women...
May 29, 2018: AIDS Research and Human Retroviruses
James Cao, Yanping Hu, Mohammed Salman Shazeeb, Carlos E Pedraza, Nilesh Pande, Daniel Weinstock, Gregory H Polites, Wenfei Zhang, Karen J Chandross, Xiaoyou Ying
The compact myelin sheath is important for axonal function, and its loss can lead to neuronal cell death and irreversible functional deficits. Myelin is vulnerable to a variety of metabolic, toxic, and autoimmune insults. In diseases like multiple sclerosis, there is currently no therapy to stop myelin loss, underscoring the need for neuroprotective and remyelinating therapies. Noninvasive, robust techniques are also needed to confirm the effect of such therapies in animal models. This article describes the generation, characterization, and potential uses for a myelin basic protein-luciferase (MBP-luci) transgenic mouse model, in which the firefly luciferase reporter gene is selectively controlled by the MBP promoter...
January 2018: ASN Neuro
Samuel Y Ng, Noriaki Yoshida, Amanda L Christie, Mahmoud Ghandi, Neekesh V Dharia, Joshua Dempster, Mark Murakami, Kay Shigemori, Sara N Morrow, Alexandria Van Scoyk, Nicolas A Cordero, Kristen E Stevenson, Maneka Puligandla, Brian Haas, Christopher Lo, Robin Meyers, Galen Gao, Andrew Cherniack, Abner Louissaint, Valentina Nardi, Aaron R Thorner, Henry Long, Xintao Qiu, Elizabeth A Morgan, David M Dorfman, Danilo Fiore, Julie Jang, Alan L Epstein, Ahmet Dogan, Yanming Zhang, Steven M Horwitz, Eric D Jacobsen, Solimar Santiago, Jian-Guo Ren, Vincent Guerlavais, D Allen Annis, Manuel Aivado, Mansoor N Saleh, Amitkumar Mehta, Aviad Tsherniak, David Root, Francisca Vazquez, William C Hahn, Giorgio Inghirami, Jon C Aster, David M Weinstock, Raphael Koch
T- and NK-cell lymphomas (TCL) are a heterogenous group of lymphoid malignancies with poor prognosis. In contrast to B-cell and myeloid malignancies, there are few preclinical models of TCLs, which has hampered the development of effective therapeutics. Here we establish and characterize preclinical models of TCL. We identify multiple vulnerabilities that are targetable with currently available agents (e.g., inhibitors of JAK2 or IKZF1) and demonstrate proof-of-principle for biomarker-driven therapies using patient-derived xenografts (PDXs)...
May 22, 2018: Nature Communications
Amanda D Rice, Kimberley Patterson, Evette D Reed, Belinda F Wurn, Kristen Robles, Bernhard Klingenberg, Leonard B Weinstock, Janey Sa Pratt, C Richard King, Lawrence J Wurn
AIM: To compare (1) quality of life and (2) rate of recurrent small bowel obstructions (SBO) for patients treated with novel manual physiotherapy vs no treatment. METHODS: One hundred and three subjects (age 19-89) with a history of recurrent adhesive SBO were treated with a manual physiotherapy called the Clear Passage Approach (CPA) which focused on decreasing adhesive crosslinking in abdominopelvic viscera. Pre- and post-therapy data measured recurring obstructions and quality of life, using a validated test sent 90 d after therapy...
May 21, 2018: World Journal of Gastroenterology: WJG
Laura Weinstock, Amanda M Furness, Shawn Herron, Sierra S Smith, Sitara Sankar, Samantha G DeRosa, Dadi Gao, Molly E Mepyans, Anna Scotto Rosato, Diego L Medina, Ayelet Vardi, Natalia S Ferreira, Soo Min Cho, Anthony H Futerman, Susan A Slaugenhaupt, Levi B Wood, Yulia Grishchuk
Mucolipidosis IV (MLIV) is an orphan neurodevelopmental disease that causes severe neurologic dysfunction and loss of vision. Currently there is no therapy for MLIV. It is caused by loss of function of the lysosomal channel mucolipin-1, also known as TRPML1. Knockout of the Mcoln1 gene in a mouse model mirrors clinical and neuropathological signs in humans. Using this model, we previously observed robust activation of microglia and astrocytes in early symptomatic stages of disease. Here we investigate the consequence of mucolipin-1 loss on astrocyte inflammatory activation in vivo and in vitro and apply a pharmacological approach to restore Mcoln1-/- astrocyte homeostasis using a clinically approved immunomodulator, fingolimod...
May 16, 2018: Human Molecular Genetics
Samuel Y Ng, Leon Brown, Kristen Stevenson, Tiffany deSouza, Jon C Aster, Abner Louissaint, David M Weinstock
Patients with angioimmunoblastic T-cell lymphoma (AITL) and other peripheral T-cell lymphomas (PTCL) that harbor features of follicular helper T (TFH) cells have a very poor prognosis. These lymphomas commonly present with paraneoplastic autoimmunity and lymphopenia. RhoA G17V mutation is present in 60% of TFH-like lymphomas but its role in tumorigenesis is poorly understood. We generated transgenic mice that express RhoA G17V under the control of murine CD4 regulatory elements at levels comparable to a heterozygous mutation (tgRhoA mice)...
May 16, 2018: Blood
Robert Zivadinov, Eleonora Tavazzi, Jesper Hagemeier, Ellen Carl, David Hojnacki, Channa Kolb, Bianca Weinstock-Guttman
BACKGROUND: Optical coherence tomography (OCT) is a technique that allows for the assessment of retinal nerve fiber layer thickness (RNFLT) and total macular volume (TMV), which reflect neuroaxonal integrity within the retina. As such it has been used in multiple sclerosis (MS) to study neurodegeneration. Glatiramer acetate (GA) is a widely used treatment for MS, which is suggested to have a possible neuroprotective role. OBJECTIVE: The aim of this study was to assess RFNLT and TMV changes in relapsing-remitting MS (RRMS) patients who started treatment with GA and were followed for a 24-month period...
May 16, 2018: CNS Drugs
Nicole Ziliotto, Francesco Bernardi, Dejan Jakimovski, Marcello Baroni, Giovanna Marchetti, Niels Bergsland, Deepa P Ramasamy, Bianca Weinstock-Guttman, Ferdinand Schweser, Paolo Zamboni, Murali Ramanathan, Robert Zivadinov
OBJECTIVE: To investigate the plasma levels of hemostasis components in multiple sclerosis (MS) and their association with clinical and MRI outcomes. METHODS: We studied 138 MS patients (85 with relapsing-remitting, RR-MS and 53 with progressive, P-MS) with mean age of 54 years; 72.5% female; median EDSS 3.5; mean disease duration 21 years) and 42 age- and sex-matched healthy individuals (HI). All subjects were examined with 3T MRI and clinical examinations. Plasma levels of hemostasis factors (procoagulant, factor XII, FXII) and inhibitors (tissue factor pathway inhibitor (TFPI), thrombomodulin (TM), heparin cofactor II (HCII), disintegrin-like and metalloprotease with thrombospondin type 1 motif 13 (ADAMTS13), and plasminogen activator inhibitor 1 (PAI-1) were evaluated by magnetic Luminex assays and ELISA...
May 14, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
Robert Zivadinov, Jennie Medin, Nasreen Khan, Jonathan R Korn, Niels Bergsland, Michael G Dwyer, Tanuja Chitnis, Robert T Naismith, Enrique Alvarez, Peter Kinkel, Stanley Cohan, Samuel F Hunter, Diego Silva, Bianca Weinstock-Guttman
BACKGROUND AND PURPOSE: Evidence is needed to understand the effect of fingolimod on slowing down brain atrophy progression in multiple sclerosis (MS) patients in clinical practice. We investigated the effect of fingolimod on brain atrophy in MS patients with active disease (clinically and/or magnetic resonance imaging [MRI]) versus no evidence of active disease (NEAD). METHODS: MS and clinical outcome and MRI in the United States (MS-MRIUS) is a multicenter, retrospective study that included 590 relapsing-remitting MS patients, who initiated fingolimod, and were followed for a median of 16 months...
May 11, 2018: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
Tom A Fuchs, Michael G Dwyer, Amy Kuceyeski, Sanjeevani Choudhery, Keith Carolus, Xian Li, Matthew Mallory, Bianca Weinstock-Guttman, Dejan Jakimovski, Deepa Ramasamy, Robert Zivadinov, Ralph H B Benedict
Quantifying white matter (WM) tract disruption in people with multiple sclerosis (PwMS) provides a novel means for investigating the relationship between defective network connectivity and clinical markers. PwMS exhibit perturbations in personality, where decreased Conscientiousness is particularly prominent. This trait deficit influences disease trajectory and functional outcomes such as work capacity. We aimed to identify patterns of WM tract disruption related to decreased Conscientiousness in PwMS. Personality assessment and brain MRI were obtained in 133 PwMS and 49 age- and sex-matched healthy controls (HC)...
May 8, 2018: Human Brain Mapping
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