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https://www.readbyqxmd.com/read/29161699/patterns-of-detection-of-fetal-posterior-fossa-anomalies-analysis-of-81-cases-in-the-second-half-of-gestation
#1
Stéphanie Friszer, Ferdinand Dhombres, Eléonore Blondiaux, Marie-Laure Moutard, Catherine Garel, Jean-Marie Jouannic
OBJECTIVE: To establish which characteristics of fetal ultrasound screening lead to the diagnosis of posterior fossa (PF) anomalies. METHODS: A total of 81 fetuses with PF anomalies diagnosed after dedicated neuroimaging between July 1, 2007, and January 1, 2013, were included. The ultrasound characteristics of the fetal cerebellum categorized according to an anatomical approach to the PF, associated fetal anomalies, gestational age at diagnosis, and the potential benefits from systematic measurement of the transverse cerebellar diameter (TCD) were analyzed...
November 21, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29161385/are-we-close-to-the-ideal-intravenous-fluid
#2
N MacDonald, R M Pearse
The approach to i.v. fluid therapy for hypovolaemia may significantly influence outcomes for patients who experience a systemic inflammatory response after sepsis, trauma, or major surgery. Currently, there is no single i.v. fluid agent that meets all the criteria for the ideal treatment for hypovolaemia. The physician must choose the best available agent(s) for each patient, and then decide when and how much to administer. Findings from large randomized trials suggest that some colloid-based fluids, particularly starch-based colloids, may be harmful in some situations, but it is unclear whether they should be withdrawn from use completely...
December 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29161224/viewing-sexual-desire-as-stable-vs-fluid-the-impact-of-implicit-beliefs-on-women-s-coping-with-sexual-desire-problems
#3
Siobhan Sutherland, Uzma S Rehman
Our goal was to examine how implicit theories can be applied to understanding women's coping responses to sexual problems. The belief that sexual desire changes over time is a type of incremental theory, while the belief that sexual desire is stable is a type of entity theory (Dweck, 2012). We examined how different implicit theories of sexual desire influence how women cope with sexual desire challenges. Also, we sought to determine whether women's perceptions of experiencing a sexual desire challenge moderate the relationship between their implicit beliefs and their coping responses...
November 21, 2017: Journal of Sex & Marital Therapy
https://www.readbyqxmd.com/read/29161093/b-cells-producing-type-i-interferon-modulate-macrophage-polarization-in-tuberculosis
#4
Alan Bénard, Imme Sakwa, Pablo Schierloh, André Colom, Ingrid Mercier, Ludovic Tailleux, Luc Jouneau, Pierre Boudinot, Talal Al-Saati, Roland Lang, Jan Rehwinkel, Andre G Loxton, Stefan He Kaufmann, Véronique Anton-Leberre, Anne O'Garra, Maria Del Carmen Sasiain, Brigitte Gicquel, Simon Fillatreau, Olivier Neyrolles, Denis Hudrisier
RATIONALE: In addition to their well-known function as antibody-producing cells, B lymphocytes can markedly influence the course of infectious or non-infectious diseases via antibody-independent mechanisms. In tuberculosis, B cells accumulate in lungs, yet their functional contribution to the host response remains poorly understood. OBJECTIVES: To document the role of B cells in tuberculosis in an unbiased manner. METHODS: We generated the transcriptome of B cells isolated from Mycobacterium tuberculosis (Mtb)-infected mice, and validated the identified key pathways using in vitro and in vivo assays...
November 21, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29161088/mechanistic-basis-for-obesity-related-increases-in-ozone-induced-airway-hyperresponsiveness-in-mice
#5
Stephanie A Shore
Obesity is a risk factor for asthma, especially nonallergic asthma. Ozone, a common air pollutant, is a nonallergic asthma trigger. Importantly, ozone-induced decrements in lung function are greater in obese and overweight human subjects than in lean individuals. Obese mice also exhibit exaggerated pulmonary responses to ozone. Ozone causes greater increases in pulmonary resistance, in bronchoalveolar lavage neutrophils, and in airway hyperresponsiveness in obese than in lean mice. Our data indicate that IL-33 plays a role in mediating these events...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29160817/impact-of-high-dose-multi-strain-probiotic-supplementation-on-neurocognitive-performance-and-central-nervous-system-immune-activation-of-hiv-1-infected-individuals
#6
Giancarlo Ceccarelli, Jason M Brenchley, Eugenio Nelson Cavallari, Giuseppe Corano Scheri, Mariangela Fratino, Claudia Pinacchio, Ivan Schietroma, Saeid Najafi Fard, Carolina Scagnolari, Ivano Mezzaroma, Vincenzo Vullo, Gabriella d'Ettorre
BACKGROUND: Gut microbiota has metabolic activity which influences mucosal homeostasis, local and systemic immune responses, and other anatomical systems (i.e., brain). The effects of dysbiosis are still poorly studied in Human Immunodeficiency Virus-1 (HIV-1) positive subjects and insufficient data are available on the impairment of the gut-brain axis, despite neurocognitive disorders being commonly diagnosed in these patients. This study evaluated the impact of a probiotic supplementation strategy on intrathecal immune activation and cognitive performance in combined antiretroviral therapy (cART) treated HIV-1 infected subjects...
November 21, 2017: Nutrients
https://www.readbyqxmd.com/read/29160524/a-fatal-case-of-tuberculous-meningitis-in-a-child-with-juvenile-idiopathic-arthritis-a-diagnostic-challenge
#7
Zumrut Sahbudak Bal, Pinar Yazici, Semra Sen, Cenk Eraslan, Cengiz Cavusoglu, Bulent Karapinar, Fadil Vardar
The prognosis of tuberculous meningitis, a rare form of extrapulmonary tuberculosis, depends on the stage of treatment initiation. We report a fatal case of tuberculous meningitis. The patient had received successive tumor necrosis factor (TNF) antagonists and abatacept to treat juvenile idiopathic arthritis, with negative results for polymerase chain reaction and acid-fast bacilli on smear, had normal cerebrospinal fluid (CSF) adenosine deaminase and glucose levels. Six weeks post-admission, the CSF culture demonstrated Mycobacterium tuberculosis...
September 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/29160418/vitamin-d3-levels-and-nlrp3-expression-in-murine-models-of-obese-asthma-association-with-asthma-outcomes
#8
J-H Zhang, Y-P Chen, X Yang, C-Q Li
Vitamin D (25(OH)D3) is an essential nutrient that plays a role in the immune system. Serum 25(OH)D3 is found to be associated with asthma. However, the role of vitamin D in obese asthma remains unclear. Therefore, we investigated the association between vitamin D levels and asthma outcomes in a murine model of obese asthma. We also evaluated NLRP3 inflammasome activity in the pathogenesis of obese asthma. We divided 20 male Balb/c mice (3-4 weeks old) into 4 groups: normal control, asthma, obese, and obese asthma and developed an obese asthma mouse model...
November 13, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29159903/soluble-mhc-molecules-in-immune-regulation-highlighting-class-ii-antigens
#9
REVIEW
Katerina Bakela, Irene Athanassakis
The involvement of Major histocompatibility complex (MHC) antigens in the development and regulation of immune response has been well defined over the years, starting from maturation, antigenic peptide loading, migration to the cell membrane for recognition by the T cell receptor and recycling for immune response cessation. During this intracellular trafficking, MHC antigens find a way to be excreted by the cells, since they can be found as soluble MHC class I (sMHCI) and class II (sMHCII) molecules in all body fluids...
November 21, 2017: Immunology
https://www.readbyqxmd.com/read/29159880/swim-bladder-mycosis-in-pretty-tetra-hemigrammus-pulcher-caused-by-exophiala-pisciphila-and-phaeophleospora-hymenocallidicola-and-experimental-verification-of-pathogenicity
#10
J Řehulka, A Kubátová, V Hubka
Spontaneous invasive and chronic disseminated mycosis affected Hemigrammus pulcher kept in a public aquarium, and infection was manifested by inappetence, exophthalmia, erratic swimming, eroded scales, anaemia of the gills and abdominal distension. Internally, there was a grossly swollen swim bladder with a thickened wall filled with a dark mass. The body cavities contained a clear, light amber fluid and a swollen intestine which was full of a watery fluid containing small gas bubbles. Histopathology revealed a granulomatous inflammatory response with fungal hyphae in the lumen and wall of the swim bladder, hepatopancreas, spleen and kidneys with signs of nephrohydrosis...
November 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29159872/the-dark-side-of-glucose-transporters-in-prostate-cancer-are-they-a-new-feature-to-characterize-carcinomas
#11
REVIEW
Pedro Gonzalez-Menendez, David Hevia, Juan C Mayo, Rosa M Sainz
One of the hallmarks of cancer cells is the increased ability to acquire nutrients, particularly glucose and glutamine. Proliferating cells need precursors for cell growth and NADPH reducing equivalents for survival. The principal responsible for glucose uptake is facilitative glucose transporters (GLUTs), which usually are overexpressed in cancer cells. Besides their role in glucose uptake, GLUT transporters are able to transport other compounds such as dehydroascorbic acid or uric acid. They play a major role in tumor progression and cellular processes such as regulated cell death...
November 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29159191/soluble-cd163-in-intracerebral-hemorrhage-biomarker-for-perihematomal-edema
#12
Meaghan Roy-O'Reilly, Liang Zhu, Louise Atadja, Glenda Torres, Jaroslaw Aronowski, Louise McCullough, Nancy J Edwards
Objective: Patients with intracerebral hemorrhage (ICH) may elaborate varying degrees of perihematomal edema (PHE), requiring closer monitoring and a higher intensity of treatment. Here, we explore whether the soluble form of CD163, a scavenger receptor responsible for hemoglobin sequestration, can serve as a prognostic biomarker of PHE development and poor outcome after ICH. Methods: Our study cohort was comprised of 51 primary age- and sex-matched ICH patients with moderate-sized, hypertensive deep hemorrhages...
November 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29159189/nmdar-encephalitis-passive-transfer-from-man-to-mouse-by-a-recombinant-antibody
#13
Manish Malviya, Sumanta Barman, Kristin S Golombeck, Jesús Planagumà, Francesco Mannara, Nathalie Strutz-Seebohm, Claudia Wrzos, Fatih Demir, Christine Baksmeier, Julia Steckel, Kim Kristin Falk, Catharina C Gross, Stjepana Kovac, Kathrin Bönte, Andreas Johnen, Klaus-Peter Wandinger, Elena Martín-García, Albert J Becker, Christian E Elger, Nikolaj Klöcker, Heinz Wiendl, Sven G Meuth, Hans-Peter Hartung, Guiscard Seebohm, Frank Leypoldt, Rafael Maldonado, Christine Stadelmann, Josep Dalmau, Nico Melzer, Norbert Goebels
Objective: Autoimmune encephalitis is most frequently associated with anti-NMDAR autoantibodies. Their pathogenic relevance has been suggested by passive transfer of patients' cerebrospinal fluid (CSF) in mice in vivo. We aimed to analyze the intrathecal plasma cell repertoire, identify autoantibody-producing clones, and characterize their antibody signatures in recombinant form. Methods: Patients with recent onset typical anti-NMDAR encephalitis were subjected to flow cytometry analysis of the peripheral and intrathecal immune response before, during, and after immunotherapy...
November 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29158887/medical-imaging-lesion-detection-based-on-unified-gravitational-fuzzy-clustering
#14
Jean Marie Vianney Kinani, Alberto Jorge Rosales Silva, Francisco Gallegos Funes, Dante Mújica Vargas, Eduardo Ramos Díaz, Alfonso Arellano
We develop a swift, robust, and practical tool for detecting brain lesions with minimal user intervention to assist clinicians and researchers in the diagnosis process, radiosurgery planning, and assessment of the patient's response to the therapy. We propose a unified gravitational fuzzy clustering-based segmentation algorithm, which integrates the Newtonian concept of gravity into fuzzy clustering. We first perform fuzzy rule-based image enhancement on our database which is comprised of T1/T2 weighted magnetic resonance (MR) and fluid-attenuated inversion recovery (FLAIR) images to facilitate a smoother segmentation...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29158529/accurate-thermal-conductivities-from-optimally-short-molecular-dynamics-simulations
#15
Loris Ercole, Aris Marcolongo, Stefano Baroni
The evaluation of transport coefficients in extended systems, such as thermal conductivity or shear viscosity, is known to require impractically long simulations, thus calling for a paradigm shift that would allow to deploy state-of-the-art quantum simulation methods. We introduce a new method to compute these coefficients from optimally short molecular dynamics simulations, based on the Green-Kubo theory of linear response and the cepstral analysis of time series. Information from the full sample power spectrum of the relevant current for a single and relatively short trajectory is leveraged to evaluate and optimally reduce the noise affecting its zero-frequency value, whose expectation is proportional to the corresponding conductivity...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158473/notch1-is-a-mechanosensor-in-adult-arteries
#16
Julia J Mack, Thiago S Mosqueiro, Brian J Archer, William M Jones, Hannah Sunshine, Guido C Faas, Anais Briot, Raquel L Aragón, Trent Su, Milagros C Romay, Austin I McDonald, Cheng-Hsiang Kuo, Carlos O Lizama, Timothy F Lane, Ann C Zovein, Yun Fang, Elizabeth J Tarling, Thomas Q de Aguiar Vallim, Mohamad Navab, Alan M Fogelman, Louis S Bouchard, M Luisa Iruela-Arispe
Endothelial cells transduce mechanical forces from blood flow into intracellular signals required for vascular homeostasis. Here we show that endothelial NOTCH1 is responsive to shear stress, and is necessary for the maintenance of junctional integrity, cell elongation, and suppression of proliferation, phenotypes induced by laminar shear stress. NOTCH1 receptor localizes downstream of flow and canonical NOTCH signaling scales with the magnitude of fluid shear stress. Reduction of NOTCH1 destabilizes cellular junctions and triggers endothelial proliferation...
November 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/29157735/validation-a-critical-step-in-bringing-biomarkers-to-clinical-fruition
#17
Sudhir Srivastava, Barnett S Kramer
Screening is vital to reducing morbidity and mortality due to cancer. A primary cause of poor survival is that many cancers are detected late and often after they have metastasized to distant sites. Therapies, therefore, become challenging for late-stage disease and are not successful for nearly all cancer types. The mortality rates from cancers where screening tools are available are lower than from cancers for which no viable screening tools exist. Even for cancers where screening tools currently exist, there is room for improvement, either in the accuracy of the tests or in increasing widespread use of screening by making the tests less invasive...
November 9, 2017: Annals of Epidemiology
https://www.readbyqxmd.com/read/29157160/quantitative-weight-of-evidence-assessment-of-higher-tier-studies-on-the-toxicity-and-risks-of-neonicotinoids-in-honeybees-4-thiamethoxam
#18
Gladys L Stephenson, Keith R Solomon
A quantitative weight of evidence (QWoE) methodology was used to assess several higher-tier studies on the effects of thiamethoxam (TMX) on honeybees. Assessment endpoints were population size and viability of commercially managed honeybee colonies and quantity of hive products. A higher-tier field toxicology study indicated a no-observed-adverse effect concentration (NOAEC) of 29.5 µg TMX/kg syrup, equivalent to an oral no-observed-adverse-effect-dose (NOAED) of 8.6 ng/bee/day for all responses measured...
November 20, 2017: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29156521/micrornas-as-novel-biomarkers-for-colorectal-cancer-new-outlooks
#19
REVIEW
Naghmeh Shirafkan, Behzad Mansoori, Ali Mohammadi, Navid Shomali, Mehri Ghasbi, Behzad Baradaran
Colorectal cancer is one of the most prevalent cancers with high mortality in the world. MicroRNAs are a class of small non-coding RNAs that regulate gene expression through targeting mRNAs. MicroRNAs involve in many biological and pathological processes such as cell growth, differentiation, apoptosis. etc. Dysregulation of miRNAs expression patterns have been reported in many tumors including Colorectal Cancer. Various studies indicate that miRNAs can be utilized as diagnostic and prognostic biomarkers for evaluation of tumor initiation, development, invasion, metastasis and response to chemotherapeutic drugs...
November 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29155707/optimized-lc-ms-ms-method-for-the-high-throughput-analysis-of-clinical-samples-of-ivacaftor-its-major-metabolites-and-lumacaftor-in-biological-fluids-of-cystic-fibrosis-patients
#20
Elena K Schneider, Felisa Reyes-Ortega, Jian Li, Tony Velkov
Defects in the cystic fibrosis trans-membrane conductance regulator (CFTR) are the cause of cystic fibrosis (CF), a disease with life-threatening pulmonary manifestations. Ivacaftor (IVA) and ivacaftor-lumacaftor (LUMA) combination are two new breakthrough CF drugs that directly modulate the activity and trafficking of the defective CFTR-protein. However, there is still a dearth of understanding on pharmacokinetic/pharmacodynamic parameters and the pharmacology of ivacaftor and lumacaftor. The HPLC-MS technique for the simultaneous analysis of the concentrations of ivacaftor, hydroxymethyl-ivacaftor, ivacaftor-carboxylate, and lumacaftor in biological fluids in patients receiving standard ivacaftor or ivacaftor-lumacaftor combination therapy has previously been developed by our group and partially validated to FDA standards...
October 15, 2017: Journal of Visualized Experiments: JoVE
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