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https://www.readbyqxmd.com/read/28742797/a-comparison-of-selective-aortic-arch-perfusion-and-resuscitative-endovascular-balloon-occlusion-of-the-aorta-for-the-management-of-hemorrhage-induced-traumatic-cardiac-arrest-a-translational-model-in-large-swine
#1
Ed B G Barnard, James E Manning, Jason E Smith, Jason M Rall, Jennifer M Cox, James D Ross
BACKGROUND: Survival rates remain low after hemorrhage-induced traumatic cardiac arrest (TCA). Noncompressible torso hemorrhage (NCTH) is a major cause of potentially survivable trauma death. Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) at the thoracic aorta (Zone 1) can limit subdiaphragmatic blood loss and allow for IV fluid resuscitation when intrinsic cardiac activity is still present. Selective Aortic Arch Perfusion (SAAP) combines thoracic aortic balloon hemorrhage control with intra-aortic oxygenated perfusion to achieve return of spontaneous circulation (ROSC) when cardiac arrest has occurred...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28742711/readiness-of-us-general-surgery-residents-for-independent-practice
#2
Brian C George, Jordan D Bohnen, Reed G Williams, Shari L Meyerson, Mary C Schuller, Michael J Clark, Andreas H Meier, Laura Torbeck, Samuel P Mandell, John T Mullen, Douglas S Smink, Rebecca E Scully, Jeffrey G Chipman, Edward D Auyang, Kyla P Terhune, Paul E Wise, Jennifer N Choi, Eugene F Foley, Justin B Dimick, Michael A Choti, Nathaniel J Soper, Keith D Lillemoe, Joseph B Zwischenberger, Gary L Dunnington, Debra A DaRosa, Jonathan P Fryer
OBJECTIVE: This study evaluates the current state of the General Surgery (GS) residency training model by investigating resident operative performance and autonomy. BACKGROUND: The American Board of Surgery has designated 132 procedures as being "Core" to the practice of GS. GS residents are expected to be able to safely and independently perform those procedures by the time they graduate. There is growing concern that not all residents achieve that standard. Lack of operative autonomy may play a role...
July 24, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28742349/exploring-the-sponge-consortium-plakortis-symbiotica-xestospongia-deweerdtae-as-a-potential-source-of-antimicrobial-compounds-and-probing-the-pharmacophore-for-antituberculosis-activity-of-smenothiazole-a-by-diverted-total-synthesis
#3
Carlos Jiménez-Romero, Joanna E Rode, Yeiry M Pérez, Scott G Franzblau, Abimael D Rodríguez
Fractionation of the bioactive CHCl3-MeOH (1:1) extracts obtained from two collections of the sponge consortium Plakortis symbiotica-Xestospongia deweerdtae from Puerto Rico provided two new plakinidone analogues, designated as plakinidone B (2) and plakinidone C (3), as well as the known plakinidone (1), plakortolide F (4), and smenothiazole A (5). The structures of 1-5 were characterized on the basis of 1D and 2D NMR spectroscopic, IR, UV, and HRMS analysis. The absolute configurations of plakinidones 2 and 3 were established through chemical correlation methods, VCD/ECD experiments, and spectroscopic data comparisons...
July 25, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28742080/emergent-remitted-and-persistent-psychosis-spectrum-symptoms-in-22q11-2-deletion-syndrome
#4
S X Tang, T M Moore, M E Calkins, J J Yi, D M McDonald-McGinn, E H Zackai, B S Emanuel, R C Gur, R E Gur
Individuals with 22q11.2 deletion syndrome (22q11DS) are at markedly elevated risk for schizophrenia-related disorders. Stability, emergence, remission and persistence of psychosis-spectrum symptoms were investigated longitudinally. Demographic, clinical and cognitive predictors of psychosis were assessed. Prospective follow-up over 2.8 years was undertaken in 75 individuals with 22q11DS aged 8-35 years. Mood, anxiety, attention-deficit hyperactivity disorders and psychosis-spectrum symptoms were assessed with the Kiddie-Schedule for Affective Disorders and Schizophrenia and Scale of Prodromal Symptoms (SOPS)...
July 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28742074/untargeted-screening-for-novel-autoantibodies-with-prognostic-value-in-first-episode-psychosis
#5
A Zandian, L Wingård, H Nilsson, E Sjöstedt, D X Johansson, D Just, C Hellström, M Uhlén, J M Schwenk, A Häggmark-Månberg, O Norbeck, B Owe-Larsson, P Nilsson, M A A Persson
Immunological and inflammatory reactions have been suggested to have a role in the development of schizophrenia, a hypothesis that has recently been supported by genetic data. The aim of our study was to perform an unbiased search for autoantibodies in patients with a first psychotic episode, and to explore the association between any seroreactivity and the development of a Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) disorder characterized by chronic or relapsing psychotic symptoms...
July 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28741981/functional-smiles-tools-for-love-sympathy-and-war
#6
Magdalena Rychlowska, Rachael E Jack, Oliver G B Garrod, Philippe G Schyns, Jared D Martin, Paula M Niedenthal
A smile is the most frequent facial expression, but not all smiles are equal. A social-functional account holds that smiles of reward, affiliation, and dominance serve basic social functions, including rewarding behavior, bonding socially, and negotiating hierarchy. Here, we characterize the facial-expression patterns associated with these three types of smiles. Specifically, we modeled the facial expressions using a data-driven approach and showed that reward smiles are symmetrical and accompanied by eyebrow raising, affiliative smiles involve lip pressing, and dominance smiles are asymmetrical and contain nose wrinkling and upper-lip raising...
July 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28741749/clinical-outcomes-after-local-field-conformal-reirradiation-of-patients-with-retropharyngeal-nodal-metastasis
#7
Courtney Pollard, Theresa P Nguyen, Sweet Ping Ng, Steven J Frank, Adam S Garden, Gary B Gunn, Clifton D Fuller, Beth M Beadle, William H Morrison, Shah J Shah, He Wang, Sam Tung, Conjun Wang, Lawrence D Ginsberg, Mark E Zafereo, Erich M Sturgis, Shirley Y Su, Ehab Y Hanna, David I Rosenthal, Jack Phan
BACKGROUND: The purpose of this study was to present our experience with retropharyngeal node reirradiation using highly conformal radiotherapy (RT). METHODS: A retrospective screen of 2504 consecutively irradiated patients with head and neck malignancies between 2005 and 2015 identified 19 patients who underwent reirradiation for retropharyngeal node metastasis. Clinical and toxicity outcomes were assessed in these patients. RESULTS: Thirteen patients (68%) had squamous cell carcinoma...
July 25, 2017: Head & Neck
https://www.readbyqxmd.com/read/28741615/patient-and-disease-characteristics-associated-with-the-presence-of-diabetes-mellitus-in-adults-with-chronic-pancreatitis-in-the-united-states
#8
Melena D Bellin, David C Whitcomb, Judah Abberbock, Stuart Sherman, Bimaljit S Sandhu, Timothy B Gardner, Michelle A Anderson, Michele D Lewis, Samer Alkaade, Vikesh K Singh, John Baillie, Peter A Banks, Darwin Conwell, Gregory A Cote, Nalini M Guda, Thiruvengadam Muniraj, Gong Tang, Randall E Brand, Andres Gelrud, Stephen T Amann, Christopher E Forsmark, C Mel Wilcox, Adam Slivka, Dhiraj Yadav
OBJECTIVES: Diabetes mellitus (DM) is a common complication of chronic pancreatitis (CP). Past studies for DM risk factors in CP have been limited to single centers or highly focused on a single etiology such as alcoholic or hereditary disease. We studied risk factors for DM in a large population of patients with CP of all etiologies enrolled in the North American Pancreatitis 2 studies. METHODS: Participants (1,171) with CP (n=383 with DM, n=788 without DM) were enrolled prospectively from 26 participating centers...
July 25, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28741426/influence-of-different-irradiation-protocols-on-vascularization-and-bone-formation-parameters-in-rat-femora
#9
Ulrike Rottensteiner-Brandl, Luitpold Distel, Martin Stumpf, Tobias Fey, Katrin Köhn, Ulf Bertram, Lara F Lingens, Peter Greil, Raymund E Horch, Andreas Arkudas
INTRODUCTION: Aim of the present study was the establishment of an efficient and reproducible model for irradiation of rat femora as a model for impaired osteogenesis and angiogenesis. MATERIALS AND METHODS: Four different irradiation protocols were compared: single irradiation of the left femur with 20 Gy and explantation after 4 or 8 weeks (group A, B); three irradiation fractions at 3-4 days intervals with 10 Gy and explantation after 4 or 8 weeks (group C, D)...
July 25, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28740758/identification-and-characterization-of-streptomyces-flavogriseus-nj-4-as-a-novel-producer-of-actinomycin-d-and-holomycin
#10
Zhaohui Wei, Chao Xu, Juan Wang, Fengxia Lu, Xiaomei Bie, Zhaoxin Lu
This paper is the first public report that Streptomyces flavogriseus can produce both actinomycin D and holomycin. The actinomycete strain NJ-4 isolated from the soil of Nanjing Agricultural University was identified as S. flavogriseus. This S. flavogriseus strain was found for the first time to produce two antimicrobial compounds that were identified as actinomycin D and holomycin. GS medium, CS medium and GSS medium were used for the production experiments. All three media supported the production of actinomycin D, while holomycin was detected only in GS medium and was undetectable by HPLC in the CS and GSS media...
2017: PeerJ
https://www.readbyqxmd.com/read/28740606/structure-guided-strategy-for-the-development-of-potent-bivalent-erk-inhibitors
#11
Bernhard C Lechtenberg, Peter D Mace, E Hampton Sessions, Robert Williamson, Romain Stalder, Yann Wallez, Gregory P Roth, Stefan J Riedl, Elena B Pasquale
ERK is the effector kinase of the RAS-RAF-MEK-ERK signaling cascade, which promotes cell transformation and malignancy in many cancers and is thus a major drug target in oncology. Kinase inhibitors targeting RAF or MEK are already used for the treatment of certain cancers, such as melanoma. Although the initial response to these drugs can be dramatic, development of drug resistance is a major challenge, even with combination therapies targeting both RAF and MEK. Importantly, most resistance mechanisms still rely on activation of the downstream effector kinase ERK, making it a promising target for drug development efforts...
July 13, 2017: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28739796/multicenter-and-international-study-of-mic-mec-distributions-for-definition-of-epidemiological-cutoff-values-ecvs-for-species-of-sporothrix-identified-by-molecular-methods
#12
A Espinel-Ingroff, D P B Abreu, R Almeida-Paes, R S N Brilhante, A Chakrabarti, A Chowdhary, F Hagen, S Córdoba, G M Gonzalez, N P Govender, J Guarro, E M Johnson, S E Kidd, S A Pereira, A M Rodrigues, S Rozental, M W Szeszs, R Ballesté Alaniz, A Bonifaz, L X Bonfietti, L P Borba-Santos, J Capilla, A L Colombo, M Dolande, M G Isla, M S C Melhem, A C Mesa-Arango, M M E Oliveira, M M Panizo, Z Pires de Camargo, R M Zancope-Oliveira, J F Meis, J Turnidge
Clinical and Laboratory Standards Institute (CLSI) conditions for testing the susceptibilities of pathogenic Sporothrix species to antifungal agents are based on a collaborative study that evaluated five clinically relevant isolates of Sporothrix schenckii sensu lato and some antifungal agents. With the advent of molecular identification, there are two basic needs: to confirm the suitability of these testing conditions for all agents and Sporothrix species and to establish species-specific epidemiologic cutoff values (ECVs) or breakpoints (BPs) for these species...
July 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28739661/histone-acetylation-not-stoichiometry-regulates-linker-histone-binding-in-saccharomyces-cerevisiae
#13
Mackenzie B D Lawrence, Nicolas Coutin, Jennifer K Choi, Benjamin J E Martin, Nicholas A T Irwin, Barry Young, Christopher Loewen, LeAnn J Howe
Linker histones play a fundamental role in shaping chromatin structure, but how their interaction with chromatin is regulated is not well understood. In this study, we used a combination of genetic and genomic approaches to explore the regulation of linker histone binding in the yeast, Saccharomyces cerevisiae We found that increased expression of Hho1, the yeast linker histone, resulted in a severe growth defect, despite only subtle changes in chromatin structure. Further, this growth defect was rescued by mutations that increase histone acetylation...
July 24, 2017: Genetics
https://www.readbyqxmd.com/read/28739506/glycosaminoglycans-from-marine-sources-as-therapeutic-agents
#14
REVIEW
Jesus Valcarcel, Ramón Novoa-Carballal, Ricardo Pérez-Martín, Rui L Reis, José Antonio Vázquez
Glycosaminoglycans (GAGs) in marine animals are different to those of terrestrial organisms, mainly in terms of molecular weight and sulfation. The therapeutic properties of GAGs are related to their ability to interact with proteins, which is very much influenced by sulfation position and patterns. Since currently GAGs cannot be chemically synthesized, they are sourced from natural products, with high intra- but also inter-species variability, in terms of chain length, disaccharide composition and sulfation pattern...
July 21, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28739377/blood-hemostatic-changes-during-an-ultraendurance-road-cycling-event-in-a-hot-environment
#15
Brian R Kupchak, Josh B Kazman, Jakob L Vingren, Danielle E Levitt, Elaine C Lee, Keith H Williamson, Lawrence E Armstrong, Patricia A Deuster
OBJECTIVE: This study aims to examine blood hemostatic responses to completing a 164-km road cycling event in a hot environment. METHODS: Thirty-seven subjects (28 men and 9 women; 51.8±9.5 [mean±SD] y) completed the ride in 6.6±1.1 hours. Anthropometrics (height, body mass [taken also during morning of the ride], percent body fat [%]) were collected the day before the ride. Blood samples were collected on the morning of the ride (PRE) and immediately after (IP) the subject completed the ride...
July 21, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28739301/a-new-pcr-assay-for-the-detection-and-differentiation-of-babesia-canis-and-babesia-vogeli
#16
Giada Annoscia, Maria Stefania Latrofa, Cinzia Cantacessi, Emanuela Olivieri, Maria Teresa Manfredi, Filipe Dantas-Torres, Domenico Otranto
Babesia spp. are globally distributed tick-borne protozoan parasites that infect the red blood cells of a wide range of vertebrate hosts, including humans. Diagnosis of babesiosis is often impeded by the transient presence of the parasites in peripheral blood, as well as by their pleomorphic nature. Given the reports of an expanding and, in some cases, sympatric geographical distribution of Babesia canis and Babesia vogeli in dogs and associated vectors, in Europe, the development of time-efficient and cost-effective diagnostic tools to detect and differentiate these two species is warranted...
July 8, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28739278/p38mapk-plays-a-critical-role-in-induction-of-a-pro-inflammatory-phenotype-of-retinal-m%C3%A3-ller-cells-following-zika-virus-infection
#17
Shuang Zhu, Huanle Luo, Hua Liu, Yonju Ha, Elizabeth R Mays, Ryan E Lawrence, Evandro Winkelmann, Alan D Barrett, Sylvia B Smith, Min Wang, Tian Wang, Wenbo Zhang
Zika virus (ZIKV) infection has been associated with ocular abnormalities such as chorioretinal atrophy, optic nerve abnormalities, posterior uveitis and idiopathic maculopathy. Yet our knowledge about ZIKV infection in retinal cells and its potential contribution to retinal pathology is still very limited. Here we found that primary Müller cells, the principal glial cells in the retina, expressed a high level of ZIKV entry cofactor AXL gene and were highly permissive to ZIKV infection. In addition, ZIKV-infected Müller cells exhibited a pro-inflammatory phenotype and produced many inflammatory and growth factors...
July 21, 2017: Antiviral Research
https://www.readbyqxmd.com/read/28739122/idiopathic-granulomatous-mastitis-a-diagnostic-and-therapeutic-challenge
#18
C M Freeman, B T Xia, G C Wilson, J D Lewis, S Khan, S J Lee, E E Lower, M J Edwards, E A Shaughnessy
BACKGROUND: Idiopathic granulomatous mastitis is a rare benign breast disease of women of reproductive age. It usually presents as a painful mass. Since the etiology is unclear, directed diagnosis and management is lacking. METHODS: This is a retrospective chart review of 14 patients, over twelve years (2004-2016), identified through query of pathology findings. RESULTS: Two asymptomatic patients were diagnosed after oncologic breast resection following neoadjuvant chemotherapy...
July 8, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28739022/component-resolved-diagnosis-in-hymenoptera-allergy
#19
REVIEW
D Antolín-Amérigo, B Ruiz-León, E Boni, T Alfaya-Arias, M Álvarez-Mon, J Barbarroja-Escudero, D González-de-Olano, C Moreno-Aguilar, M Rodríguez-Rodríguez, M J Sánchez-González, L Sánchez-Morillas, A Vega-Castro
Component-resolved diagnosis based on the use of well-defined, properly characterised and purified natural and recombinant allergens constitutes a new approach in the diagnosis of venom allergy. Prospective readers may benefit from an up-to-date review on the allergens. The best characterised venom is that of Apis mellifera, whose main allergens are phospholipase A2 (Api m1), hyaluronidase (Api m2) and melittin (Api m4). Additionally, in recent years, new allergens of Vespula vulgaris have been identified and include phospholipase A1 (Ves v1), hyaluronidase (Ves v2) and antigen 5 (Ves v5)...
July 21, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28738949/blood-transfusion-and-survival-for-resected-adrenocortical-carcinoma-a-study-from-the-united-states-adrenocortical-carcinoma-group
#20
Caroline E Poorman, Lauren M Postlewait, Cecilia G Ethun, Thuy B Tran, Jason D Prescott, Timothy M Pawlik, Tracy S Wang, Jason Glenn, Ioannis Hatzaras, Rivfka Shenoy, John E Phay, Kara Keplinger, Ryan C Fields, Linda X Jin, Sharon M Weber, Ahmed Salem, Jason K Sicklick, Shady Gad, Adam C Yopp, John C Mansour, Quan-Yang Duh, Natalie Seiser, Carmen C Solorzano, Colleen M Kiernan, Konstantinos I Votanopoulos, Edward A Levine, Charles A Staley, George A Poultsides, Shishir K Maithel
Perioperative blood transfusion is associated with decreased survival in pancreatic, gastric, and liver cancer. The effect of transfusion in adrenocortical carcinoma (ACC) has not been studied. Patients with available transfusion data undergoing curative-intent resection of ACC from 1993 to 2014 at 13 institutions comprising the United States Adrenocortical Carcinoma Group were included. Factors associated with blood transfusion were determined. Primary and secondary end points were recurrence-free survival (RFS) and overall survival (OS), respectively...
July 1, 2017: American Surgeon
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