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https://www.readbyqxmd.com/read/28734909/prognostic-value-of-exercise-stress-echocardiography-in-asymptomatic-patients-with-aortic-valve-stenosis
#1
Coppelia Goublaire, Maria Melissopoulou, David Lobo, Naozumi Kubota, Constance Verdonk, Claire Cimadevilla, Isabelle Codogno, Eric Brochet, Alec Vahanian, David Messika-Zeitoun
OBJECTIVES: This study sought to evaluate the prognostic value of mean pressure gradient (MPG) increase and peak systolic pulmonary artery pressure (SPAP) measured during exercise stress echocardiography in asymptomatic patients with aortic stenosis (AS). BACKGROUND: Exercise testing is recommended in asymptomatic AS patients, but the additional value of exercise-stress echocardiography, especially the prognostic value of MPG increase and peak SPAP, is still debated...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28730155/surveillance-study-of-influenza-occurrence-and-immunity-in-a-wisconsin-cohort-during-the-2009-pandemic
#2
Chia-Yun Lo, Susan L Strobl, Kimberly Dunham, Wei Wang, Lucy Stewart, Julia A Misplon, Mayra Garcia, Jin Gao, Tatsuhiko Ozawa, Graeme E Price, Jose Navidad, Steve Gradus, Sanjib Bhattacharyya, Cecile Viboud, Maryna C Eichelberger, Carol D Weiss, Jack Gorski, Suzanne L Epstein
BACKGROUND: Antibody and T-cell immunity to conserved influenza virus antigens can protect animals against infection with diverse influenza strains. Although immunity against conserved antigens occurs in humans, whether such responses provide cross-protection in humans and could be harnessed as the basis for universal influenza vaccines is controversial. The 2009 pandemic provided an opportunity to investigate whether pre-existing cross-reactive immunity affected susceptibility to infection...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28728892/-pediatric-preparations-of-blood-products
#3
C Boulat
The transfusion in pediatrics may require specific preparations to adapt to the various characteristics from preterm neonates to big child: weight, immaturity, immune system, blood volume, long and short-term prognosis, and to meet the needs of pathologies related to the perinatal period. The knowledge of the process for preparation, conservation and administration of these particular products shall permit a transfusion in safe conditions by supporting the prescribers in a personalized blood management.
July 17, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28725312/two-cases-of-pneumatosis-cystoides-intestinalis-with-intraperitoneal-free-air
#4
Kensuke Wada, Nobuhiro Takeuchi, Masakazu Emori, Masanori Takada, Yusuke Nomura, Akihito Otsuka
Intraperitoneal free air (IFA) is sometimes accompanied by pneumatosis cystoides intestinalis (PCI); therefore, proper diagnosis is essential for PCI management. We report two cases of PCI with IFA. A 70-year-old female taking anti-psychotic medication for schizophrenia presented with repeated vomiting and high-grade fever. Computed tomography revealed small, linear gaseous cysts in the intestinal wall along with IFA. Although there was no sign of peritoneal irritation, intestinal perforation was not excluded...
June 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28722365/-segmental-arterial-mediolysis-a-differential-diagnosis-of-vasculitis
#5
Yassaman Alipour Tehrany, Sylvain Terraz, Jörg D Seebach
Segmental arterial mediolysis (SAM) is a rare non-atherosclerotic, non-inflammatory disease of unknown aetiology mostly affecting medium-sized arteries of the splanchnic circulation. Histologically, SAM is characterized by vacuolization and lysis of the arterial media leading to dissection, stenosis/occlusion or aneurysms. Symptoms vary from unspecific abdominal pain to hemorrhagic shock due to vessel rupture. The clinical and radiological presentation can mimic vasculitis, fibromuscular dysplasia or collagen vascular diseases...
April 5, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28721347/peliosis-hepatis-complicating-pregnancy-a-rare-entity
#6
Muhammad Osama Butt, Nasir Hassan Luck, Syed Mujahid Hassan, Zaigham Abbas, Muhammed Mubarak
Peliosis hepatis (PH) is a rare, benign condition of the liver characterized by the presence of blood-filled lacunar spaces in the parenchyma. It usually has a chronic presentation and is a rare cause of portal hypertension reported in adult patients. Its etiology is diverse and ranges from infectious agents to tumors to toxic substances and anabolic steroids; however, the cause remains unclear in 25-50% of patients. Similarly, the symptomatology and imaging findings are diverse. Biopsy is the definitive test to diagnose the condition...
June 2017: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28720993/inserting-pedicle-screws-in-lumbar-spondylolisthesis-the-easy-bone-conserving-way
#7
Hitesh Lal, Lalit Kumar, Ramesh Kumar, Tankeshwar Boruah, Pankaj Kumar Jindal, Vinod Kumar Sabharwal
BACKGROUND: Pedicle screw fixation in high grade lumbar listhetic vertebral body has been nightmare for Orthopaedic and spine surgeons. This is because of abnormally positioned listhetic pedicles and non-visualization of pedicle in conventional image intensifier (C-Arm). This results into increased surgical time, more blood loss, radiation exposure and more chances of infection. To overcome this problem, we have devised a new Technique of putting of pedicle screw fixation in listhetic vertebrae...
April 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28720746/-a-rare-case-of-ruptured-internal-carotid-posterior-communicating-artery-aneurysm-associated-with-contralateral-delayed-oculomotor-nerve-palsy
#8
Chika Somagawa, Yutaka Fukuda, Shota Yoshimura, Kei Satoh, Takeshi Hiu, Tomonori Ono, Ryujirou Ushijima, Keisuke Toda, Keisuke Tsutsumi
A 55-year-old man presented with difficulty breathing, chest pain, and disturbance of consciousness, and was transferred to our hospital. Initial whole body CT revealed a diffuse subarachnoid hemorrhage(SAH)with severe pulmonary edema that was considered neurogenic in origin. He received controlled ventilation under sedation and conservative care for the SAH. One day after the onset of the SAH, his left pupil suddenly became dilated to 6mm, with no reaction to light. Head CT showed no new bleeding. Subsequent CT angiogram revealed a right internal carotid-posterior communicating artery aneurysm(IC-PC AN)with a posterior-lateral projection; however, no vessel abnormality was observed in the left anterior or posterior circulations...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28720191/sustained-accelerated-idioventricular-rhythm-in-a-centrifuge-simulated-suborbital-spaceflight
#9
Rahul Suresh, Rebecca S Blue, Charles Mathers, Tarah L Castleberry, James M Vanderploeg
INTRODUCTION: Hypergravitational exposures during human centrifugation are known to provoke dysrhythmias, including sinus dysrhythmias/tachycardias, premature atrial/ventricular contractions, and even atrial fibrillations or flutter patterns. However, events are generally short-lived and resolve rapidly after cessation of acceleration. This case report describes a prolonged ectopic ventricular rhythm in response to high G exposure. CASE REPORT: A previously healthy 30-yr-old man voluntarily participated in centrifuge trials as a part of a larger study, experiencing a total of 7 centrifuge runs over 48 h...
August 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28719652/long-term-follow-up-of-human-t-cell-responses-to-conserved-hiv-1-regions-elicited-by-dna-simian-adenovirus-mva-vaccine-regimens
#10
Nathifa Moyo, Nicola J Borthwick, Edmund G Wee, Silvia Capucci, Alison Crook, Lucy Dorrell, Tomáš Hanke
BACKGROUND: Durability of vaccine-elicited immune responses is one of the key determinants for vaccine success. Our aim is to develop a vaccination strategy against the human immunodeficiency virus type 1 (HIV-1), which induces protective and durable CD8+ T-cell responses. The central theorem of our approach is to focus T cells on highly conserved regions of the HIV-1 proteome and this is achieved through the use of the first-generation conserved vaccine immunogen HIVconsv. This immunogen vectored by plasmid DNA, simian adenovirus and poxvirus MVA was tested in healthy, HIV-1-negative adults in UK and induced high magnitudes of HIVconsv-specific plurifunctional CD8+ T cells capable of in vitro HIV-1 inhibition...
2017: PloS One
https://www.readbyqxmd.com/read/28718241/c-reactive-protein-an-aid-for-diagnosis-of-acute-appendicitis
#11
Nauman Ahmed
BACKGROUND: Delayed or wrong diagnosis of acute appendicitis in patients results in complications like perforation, gangrene, etc. which carries a significant amount of morbidity and mortality to the patients. Thus, timely diagnosis of acute appendicitis is crucial to prevent these complications. Recently, it was found that serum C-reactive protein (CRP) individually can be a useful marker, thus in resource limited settings (i.e., access to ultrasonography) simple laboratory investigation can be of extreme utility for the diagnosis of acute appendicitis...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28717038/a-human-biofilm-disrupting-monoclonal-antibody-potentiates-antibiotic-efficacy-in-rodent-models-of-both-staphylococcus-aureus-and-acinetobacter-baumannii-infections
#12
Yan Q Xiong, Angeles Estellés, L Li, W Abdelhady, R Gonzales, Arnold S Bayer, Edgar Tenorio, Anton Leighton, Stefan Ryser, Lawrence M Kauvar
Many serious bacterial infections are antibiotic-refractory due to biofilm formation. A key structural component of biofilm is extracellular DNA which is stabilized by bacterial proteins, including those from the DNABII family. TRL1068 is a high affinity human monoclonal antibody against a DNABII epitope conserved across both gram-positive and gram-negative bacterial species. In the current study, the efficacy of TRL1068 for disruption of biofilm was demonstrated in vitro in the absence of antibiotics by scanning electron microscopy...
July 17, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28716744/a-heterozygous-mutation-in-got1-is-associated-with-familial-macro-aspartate-aminotransferase
#13
Maria Kulecka, Aldona Wierzbicka, Agnieszka Paziewska, Michal Mikula, Andrzej Habior, Wojciech Janczyk, Michalina Dabrowska, Jakub Karczmarski, Michal Lazniewski, Krzysztof Ginalski, Anna Czlonkowska, Piotr Socha, Jerzy Ostrowski
BACKGROUND & AIMS: Macro-aspartate aminotransferase (macro-AST) manifests as persistent elevation of AST levels, due to association of the protein with immunoglobulins in the circulation macro-AST is a rare, benign condition without a previously confirmed genetic basis. METHODS: Whole exome sequencing (WES)-based screening was performed on 32 participants with suspected familial macro-AST, while variants validation was performed on an extended cohort of 90 probands and 1644 healthy controls using Taqman genotyping...
July 14, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28715804/oligopeptide-transporters-of-the-slc15-family-are-dispensable-for-peptidoglycan-sensing-and-transport-in-drosophila
#14
Florence Capo, Delphine Chaduli, Annelise Viallat-Lieutaud, Bernard Charroux, Julien Royet
Peptidoglycan (PGN) detection by PGN recognition proteins (PGRP) is the main trigger of the antibacterial immune response in Drosophila. Depending on the type of immune cell, PGN can be sensed either at the cell membrane by PGRP-LC or inside the cell by PGRP-LE, which plays a role similar to that of Nod2 in mammals. Previous work, mainly in cell cultures, has shown that oligopeptide transporters of the SLC15 family are essential for the delivery of PGN for Nod2 detection inside of the cells, and that this function might be conserved in flies...
July 18, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28715472/a-novel-isoform-of-il-33-revealed-by-screening-for-transposable-element-promoted-genes-in-human-colorectal-cancer
#15
Frances E Lock, Artem Babaian, Ying Zhang, Liane Gagnier, Sabrina Kuah, Antonia Weberling, Mohammad M Karimi, Dixie L Mager
Remnants of ancient transposable elements (TEs) are abundant in mammalian genomes. These sequences contain multiple regulatory motifs and hence are capable of influencing expression of host genes. TEs are known to be released from epigenetic repression and can become transcriptionally active in cancer. Such activation could also lead to lineage-inappropriate activation of oncogenes, as previously described in lymphomas. However, there are few reports of this mechanism occurring in non-blood cancers. Here, we re-analyzed whole transcriptome data from a large cohort of patients with colon cancer, compared to matched normal colon control samples, to detect genes or transcripts ectopically expressed through activation of TE promoters...
2017: PloS One
https://www.readbyqxmd.com/read/28715465/multiplexing-detection-of-igg-against-plasmodium-falciparum-pregnancy-specific-antigens
#16
Ana Maria Fonseca, Llorenç Quinto, Alfons Jiménez, Raquel González, Azucena Bardají, Sonia Maculuve, Carlota Dobaño, Maria Rupérez, Anifa Vala, John J Aponte, Esperanza Sevene, Eusebio Macete, Clara Menéndez, Alfredo Mayor
BACKGROUND: Pregnant women exposed to Plasmodium falciparum generate antibodies against VAR2CSA, the parasite protein that mediates adhesion of infected erythrocytes to the placenta. There is a need of high-throughput tools to determine the fine specificity of these antibodies that can be used to identify immune correlates of protection and exposure. Here we aimed at developing a multiplex-immunoassay to detect antibodies against VAR2CSA antigens. METHODS AND FINDINGS: We constructed two multiplex-bead arrays, one composed of 3 VAR2CSA recombinant-domains (DBL3X, DBL5Ɛ and DBL6Ɛ) and another composed of 46 new peptides covering VAR2CSA conserved and semi-conserved regions...
2017: PloS One
https://www.readbyqxmd.com/read/28712794/utilization-of-opportunistic-salpingectomy-at-time-of-benign-hysterectomy
#17
Sara R Till, Emily K Kobernik, Neil S Kamdar, Madeline G Edwards, Sawsan As-Sanie, Darrell A Campbell, Daniel M Morgan
STUDY OBJECTIVE: To delineate the utilization of opportunistic salpingectomy over the study period, to examine factors associated with its utilization, and to evaluate whether salpingectomy was associated with perioperative complications. DESIGN: Retrospective cross-sectional study (Canadian Task Force classification II-2) SETTING: Michigan Surgical Quality Collaborative (MSQC) PATIENTS: Women undergoing ovarian conserving hysterectomy for benign indications from January 2013 through April 2015...
July 13, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28710044/treatment-strategies-of-subarachnoid-hemorrhage-from-bilateral-vertebral-artery-dissection-a-case-report-and-literature-review-focusing-on-availability-of-stent-placement
#18
Yasuo Murai, Fumihiro Matano, Shoji Yokobori, Hidetaka Onda, Hiroyuki Yokota, Akio Morita
BACKGROUND: Bilateral vertebral artery dissection (VAD) may result in subarachnoid hemorrhage (SAH). However, a variety of factors contribute to the difficulties with treating SAH. We report a case of bilateral VAD with SAH, as well as a literature review. CASE DESCRIPTION: A 32-year-old woman developed headache. Computed tomography (CT) demonstrated diffuse SAH, and 3-dimensional CT indicated bilateral VAD. Her left vertebral artery was severely stenosed and the basilar artery was retrogradely flowed via the posterior communicating artery...
July 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28705379/prognostic-usefulness-of-cardiopulmonary-exercise-testing-for-managing-patients-with-severe-aortic-stenosis
#19
Van D Le, Gunnar V Jensen, Lars Kjøller-Hansen
The approach to managing asymptomatic or questionably symptomatic patients for aortic stenosis is difficult. We aimed to determine whether cardiopulmonary exercise testing (CPET) is prognostically useful in such patients. Patients judged asymptomatic or questionably symptomatic for aortic stenosis with aortic valve area index <0.6 cm(2)/m(2) and left ventricular ejection fraction ≥0.50 were managed conservatively provided they had either (group 1) normal peak oxygen consumption and peak oxygen pulse (>83% and >95% of the predicted values, respectively) or (group 2) subnormal peak oxygen consumption or peak oxygen pulse but with CPET data pointing to pathologies other than hemodynamic compromise from aortic stenosis...
June 15, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28705245/abscisic-acid-induces-a-transient-shift-in-signaling-that-enhances-nf-%C3%AE%C2%BAb-mediated-parasite-killing-in-the-midgut-of-anopheles-stephensi-without-reducing-lifespan-or-fecundity
#20
Elizabeth K K Glennon, Brandi K Torrevillas, Shannon F Morrissey, Jadrian M Ejercito, Shirley Luckhart
BACKGROUND: Abscisic acid (ABA) is naturally present in mammalian blood and circulating levels can be increased by oral supplementation. We showed previously that oral ABA supplementation in a mouse model of Plasmodium yoelii 17XNL infection reduced parasitemia and gametocytemia, spleen and liver pathology, and parasite transmission to the mosquito Anopheles stephensi fed on these mice. Treatment of cultured Plasmodium falciparum with ABA at levels detected in our model had no effects on asexual growth or gametocyte formation in vitro...
July 13, 2017: Parasites & Vectors
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