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https://www.readbyqxmd.com/read/28303188/facilitation-between-woody-and-herbaceous-plants-that-associate-with-arbuscular-mycorrhizal-fungi-in-temperate-european-forests
#1
Stavros D Veresoglou, Monika Wulf, Matthias C Rillig
In late-successional environments, low in available nutrient such as the forest understory, herbaceous plant individuals depend strongly on their mycorrhizal associates for survival. We tested whether in temperate European forests arbuscular mycorrhizal (AM) woody plants might facilitate the establishment of AM herbaceous plants in agreement with the mycorrhizal mediation hypothesis. We used a dataset spanning over 400 vegetation plots in the Weser-Elbe region (northwest Germany). Mycorrhizal status information was obtained from published resources, and Ellenberg indicator values were used to infer environmental data...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28301884/geburtshilfe-die-kunst-der-guten-an%C3%A3-sthesie-und-analgesie
#2
Hinnerk Wulf
No abstract text is available yet for this article.
March 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/28295696/probing-a-device-s-active-atoms
#3
Michał Studniarek, Ufuk Halisdemir, Filip Schleicher, Beata Taudul, Etienne Urbain, Samy Boukari, Marie Hervé, Charles-Henri Lambert, Abbass Hamadeh, Sebastien Petit-Watelot, Olivia Zill, Daniel Lacour, Loïc Joly, Fabrice Scheurer, Guy Schmerber, Victor Da Costa, Anant Dixit, Pierre André Guitard, Manuel Acosta, Florian Leduc, Fadi Choueikani, Edwige Otero, Wulf Wulfhekel, François Montaigne, Elmer Nahuel Monteblanco, Jacek Arabski, Philippe Ohresser, Eric Beaurepaire, Wolfgang Weber, Mébarek Alouani, Michel Hehn, Martin Bowen
Materials science and device studies have, when implemented jointly as "operando" studies, better revealed the causal link between the properties of the device's materials and its operation, with applications ranging from gas sensing to information and energy technologies. Here, as a further step that maximizes this causal link, the paper focuses on the electronic properties of those atoms that drive a device's operation by using it to read out the materials property. It is demonstrated how this method can reveal insight into the operation of a macroscale, industrial-grade microelectronic device on the atomic level...
March 13, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28276442/an-electrically-actuated-molecular-toggle-switch
#4
Lukas Gerhard, Kevin Edelmann, Jan Homberg, Michal Valášek, Safa G Bahoosh, Maya Lukas, Fabian Pauly, Marcel Mayor, Wulf Wulfhekel
Molecular electronics is considered a promising approach for future nanoelectronic devices. In order that molecular junctions can be used as electrical switches or even memory devices, they need to be actuated between two distinct conductance states in a controlled and reproducible manner by external stimuli. Here we present a tripodal platform with a cantilever arm and a nitrile group at its end that is lifted from the surface. The formation of a coordinative bond between the nitrile nitrogen and the gold tip of a scanning tunnelling microscope can be controlled by both electrical and mechanical means, and leads to a hysteretic switching of the conductance of the junction by more than two orders of magnitude...
March 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28273102/age-related-differences-in-skeletal-muscle-microvascular-response-to-exercise-as-detected-by-contrast-enhanced-ultrasound-ceus
#5
Wulf Hildebrandt, Hans Schwarzbach, Anita Pardun, Lena Hannemann, Björn Bogs, Alexander M König, Andreas H Mahnken, Olaf Hildebrandt, Ulrich Koehler, Ralf Kinscherf
BACKGROUND: Aging involves reductions in exercise total limb blood flow and exercise capacity. We hypothesized that this may involve early age-related impairments of skeletal muscle microvascular responsiveness as previously reported for insulin but not for exercise stimuli in humans. METHODS: Using an isometric exercise model, we studied the effect of age on contrast-enhanced ultrasound (CEUS) parameters, i.e. microvascular blood volume (MBV), flow velocity (MFV) and blood flow (MBF) calculated from replenishment of Sonovue contrast-agent microbubbles after their destruction...
2017: PloS One
https://www.readbyqxmd.com/read/28255716/systems-imaging-of-the-immune-synapse
#6
Rachel Ambler, Xiangtao Ruan, Robert F Murphy, Christoph Wülfing
Three-dimensional live cell imaging of the interaction of T cells with antigen-presenting cells (APCs) visualizes the subcellular distributions of signaling intermediates during T cell activation at thousands of resolved positions within a cell. These information-rich maps of local protein concentrations are a valuable resource in understanding T cell signaling. Here, we describe a protocol for the efficient acquisition of such imaging data and their computational processing to create four-dimensional maps of local concentrations...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28247034/genomic-characteristics-of-trastuzumab-resistant-her2-positive-metastatic-breast-cancer
#7
Mateus de Oliveira Taveira, Sheida Nabavi, Yuker Wang, Peter Tonellato, Francisco J Esteva, Lewis C Cantley, Gerburg M Wulf
PURPOSE: Resistance to trastuzumab therapy is linked to phosphoinositol 3-kinase (PI3K) pathway activation. One key downstream effector and regulator of this pathway is the mechanistic target of rapamycin (mTOR). In 2011, a phase I/II study evaluated the combination of trastuzumab and everolimus (a mTOR inhibitor) for treatment of Her2-positive metastatic breast cancer (MBC) for patients who had progressed on trastuzumab-based therapy. METHODS: We retrospectively analyzed GeneChip microarray data from 22 of 47 patients included in the study...
February 28, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28235985/-spontaneous-remission-of-hcv-infection-after-autologous-stem-cell-transplantation-in-a-58-year-old-man
#8
L Reinhardt, H Eiffert, G Wulf, P Ströbel, S C B Bremer, A Amanzada, V Ellenrieder, A Neesse
We report about a 58-year-old man with a chronic and treatment-naive hepatitis C virus (HCV) infection of genotype 1b, who had undergone autologous stem cell transplantation twice due to multiple myeloma. Subsequently, a high-level viremic reactivation of an occult hepatitis B virus (HBV) infection and also a reverse seroconversion was observed. Furthermore, a sustained spontaneous remission of HCV infection was seen. Antiviral therapy of HBV infection was initiated with tenofovir. Seven months after therapy initiation, the patient acquired an "anti-HBc-only" status...
February 24, 2017: Der Internist
https://www.readbyqxmd.com/read/28229577/maximal-aerobic-capacity-can-be-increased-by-enhancing-performers-expectancies
#9
Jeff Montes, Gabriele Wulf, James W Navalta
BACKGROUND: Maximum aerobic capacity (VO2max) is widely accepted as the best measure of cardiovascular fitness and aerobic power. The present study investigated whether enhancing participants' performance expectancies through positive social-comparative feedback would increase VO2max. METHODS: Participants were experienced runners who regularly ran for exercise or competitively. All participants completed two VO2max tests within a 2-week period at similar times of the day...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28215688/oxytocin-treatment-does-not-change-cardiovascular-parameters-hematology-and-plasma-electrolytes-in-parturient-horse-mares
#10
Christina Nagel, Lisa Trenk, Manuela Wulf, Natascha Ille, Jörg Aurich, Christine Aurich
In mares, foaling is associated with changes in hematology, plasma electrolytes, blood pressure and heart rate and it has been hypothesized that these are induced by oxytocin. To test this hypothesis, mares (n = 8-14/group) were treated with oxytocin (OT; 20 I.U.) or saline (CON) at 1 h (test A) and 12 h after foaling (test B) and during first postpartum diestrus (test C). Heart rate, heart rate variability (HRV), atrioventricular blocks, salivary cortisol concentration, blood pressure, plasma electrolytes and blood count were determined...
March 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28202523/cancer-stem-cells-regulate-cancer-associated-fibroblasts-via-activation-of-hedgehog-signaling-in-mammary-gland-tumors
#11
Giovanni Valenti, Hazel M Quinn, Guus Jje Heynen, Linxiang Lan, Jane D Holland, Regina Vogel, Annika Wulf-Goldenberg, Walter Birchmeier
Many tumors display intracellular heterogeneity, with subsets of cancer stem cells (CSC) that sustain tumor growth, recurrence, and therapy resistance. Cancer associated fibroblasts (CAF) have been shown to support and regulate CSC function. Here we investigated the interactions between CSCs and CAFs in mammary gland tumors driven by combined activation of Wnt/β-catenin and Hgf/Met signaling in mouse mammary epithelial cells. In this setting, CSCs secreted the hedgehog ligand SHH, which regulated CAFs via paracrine activation of Hedgehog signaling...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28179499/structural-mechanistic-and-functional-insight-into-gliotoxin-bis-thiomethylation-in-aspergillus-fumigatus
#12
Stephen K Dolan, Tobias Bock, Vanessa Hering, Rebecca A Owens, Gary W Jones, Wulf Blankenfeldt, Sean Doyle
Gliotoxin is an epipolythiodioxopiperazine (ETP) class toxin, contains a disulfide bridge that mediates its toxic effects via redox cycling and is produced by the opportunistic fungal pathogen Aspergillus fumigatus Self-resistance against gliotoxin is effected by the gliotoxin oxidase GliT, and attenuation of gliotoxin biosynthesis is catalysed by gliotoxin S-methyltransferase GtmA. Here we describe the X-ray crystal structures of GtmA-apo (1.66 Å), GtmA complexed to S-adenosylhomocysteine (1.33 Å) and GtmA complexed to S-adenosylmethionine (2...
February 2017: Open Biology
https://www.readbyqxmd.com/read/28152495/pancreatitis-panniculitis-and-polyarthritis-ppp-syndrome-caused-by-post-pancreatitis-pseudocyst-with-mesenteric-fistula-diagnosis-and-successful-surgical-treatment-case-report-and-review-of-literature
#13
Wulf Dieker, Johannes Derer, Thomas Henzler, Alexander Schneider, Felix Rückert, Torsten J Wilhelm, Bernd Krüger
INTRODUCTION: Pancreatitis, panniculitis and polyarthritis syndrome is a very rare extra-pancreatic complication of pancreatic diseases. PRESENTATION OF CASE: While in most cases this syndrome is caused by acute or chronic pancreatitis, we report a case of a 62-year-old man presenting with extensive intraosseous fat necrosis, polyarthritis and panniculitis caused by a post-pancreatitis pseudocyst with a fistula to the superior mesenteric vein and extremely high blood levels of lipase...
January 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28139360/course-of-psychotic-symptoms-depression-and-global-functioning-in-persons-at-clinical-high-risk-of-psychosis-results-of-a-longitudinal-observation-study-over-three-years-focusing-on-both-converters-and-non-converters
#14
Michael P Hengartner, Karsten Heekeren, Diane Dvorsky, Susanne Walitza, Wulf Rössler, Anastasia Theodoridou
The aim of this study was to test the validity of the CHR state by focusing on the course of psychosis spectrum symptoms, depression and global functioning in converters and non-converters. A total of 188 CHR-positive subjects (60.2% men) aged between 13 and 35years (mean=20.5) at study outset were assessed five times (t0-t4) over a total observation period of 36months. Conversion to manifest psychosis was defined according to ICD-10 criteria for schizophrenia (F20) or brief psychotic disorder (F23). Measures of positive and negative symptoms were assessed with the Structured Interview for Prodromal Syndromes (SIPS), depression with the Calgary Depression Scale (CDS), and global functioning with the Global Assessment of Functioning Scale (GAF)...
January 27, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28138160/impact-of-salvage-regimens-on-response-and-overall-survival-in-acute-myeloid-leukemia-with-induction-failure
#15
M Wattad, D Weber, K Döhner, J Krauter, V I Gaidzik, P Paschka, M Heuser, F Thol, T Kindler, M Lübbert, H R Salih, A Kündgen, H-A Horst, P Brossart, K Götze, D Nachbaur, C-H Köhne, M Ringhoffer, G Wulf, G Held, H Salwender, A Benner, A Ganser, H Döhner, R F Schlenk
We evaluated the impact of salvage regimens and allogeneic hematopoietic cell transplantation (allo-HCT) in acute myeloid leukemia (AML) with induction failure. Between 1993 and 2009, 3324 patients with newly diagnosed AML were enrolled in 5 prospective treatment trials of the German-Austrian AML Study Group. After first induction therapy with idarubicin, cytarabine and etoposide (ICE), 845 patients had refractory disease. In addition, 180 patients, although responding to first induction, relapsed after second induction therapy...
February 10, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28131937/inland-navigation-pah-inventories-in-soil-and-vegetation-after-eu-fuel-regulation-2009-30-ec
#16
Melanie Bläsing, Wulf Amelung, Lorenz Schwark, Eva Lehndorff
In January 2011, fuel quality in inland water vessels was changed by EU regulation 2009/30/EC, aiming at improving air quality along waterways. We hypothesized that the implementation of this regulation both lowered the total deposition of polycyclic aromatic hydrocarbons (PAHs) and changed their composition in river valleys. We analyzed parent-, alkylated- and thio-PAHs in soil and vine leaves, at two waterways (Rhine and Moselle, Germany), as well as in one ship-free reference area (Ahr, Germany). Samples were taken annually (2010-2013) in transects perpendicular to the rivers...
April 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28114948/current-controversies-in-radiotherapy-for-breast-cancer
#17
REVIEW
David Krug, René Baumann, Wilfried Budach, Jürgen Dunst, Petra Feyer, Rainer Fietkau, Wulf Haase, Wolfgang Harms, Marc D Piroth, Marie-Luise Sautter-Bihl, Felix Sedlmayer, Rainer Souchon, Frederik Wenz, Rolf Sauer
Multimodal treatment approaches have substantially improved the outcome of breast cancer patients in the last decades. Radiotherapy is an integral component of multimodal treatment concepts used in curative and palliative intention in numerous clinical situations from precursor lesions such as ductal carcinoma in situ (DCIS) to advanced breast cancer. This review addresses current controversial topics in radiotherapy with special consideration of DCIS, accelerated partial breast irradiation (APBI) and regional nodal irradiation (RNI) and provides an update on the clinical practice guidelines of the Breast Cancer Expert Panel of the German Society of Radiation Oncology (DEGRO)...
January 23, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28114913/recovery-and-decision-making-involvement-in-people-with-severe-mental-illness-from-six-countries-a-prospective-observational-study
#18
Sabine Loos, Eleanor Clarke, Harriet Jordan, Bernd Puschner, Andrea Fiorillo, Mario Luciano, Tibor Ivánka, Erzsébet Magyar, Malene Krogsgaard-Bording, Helle Østermark-Sørensen, Wulf Rössler, Wolfram Kawohl, Benjamin Mayer, Mike Slade
BACKGROUND: Clinical decision-making is the vehicle of health care provision, and level of involvement predicts implementation and satisfaction. The aim of this study was to investigate the impact of decision-making experience on recovery. METHODS: Data derived from an observational cohort study "Clinical decision making and outcome in routine care for people with severe mental illness" (CEDAR). Adults (aged 18-60) meeting standardised criteria for severe mental illness were recruited from caseloads of outpatient and community mental health services in six European countries...
January 23, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28113111/stability-and-change-in-reported-age-of-onset-of-depression-back-pain-and-smoking-over-29-years-in-a-prospective-cohort-study
#19
Diana Paksarian, Lihong Cui, Jules Angst, Vladeta Ajdacic-Gross, Wulf Rössler, Kathleen R Merikangas
Accurate age of onset (AOO) measurement is vital to etiologic and preventive research. While AOO reports are known to be subject to recall error, few population-based studies have been used to investigate agreement in AOO reports over more than a decade. We examined AOO reports for depression, back/neck pain, and daily smoking, in a population-based cohort spanning 29 years. A stratified sample of participants from Zurich, Switzerland (n = 591) completed a psychiatric and physical health interview 7 times between 1979, at ages 20 (males) and 21 (females), and 2008...
January 10, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28107369/impact-of-donor-activating-kir-genes-on-hsct-outcome-in-c1-ligand-negative-myeloid-disease-patients-transplanted-with-unrelated-donors-a-retrospective-study
#20
Christine Neuchel, Daniel Fürst, Dietger Niederwieser, Donald Bunjes, Chrysanthi Tsamadou, Gerald Wulf, Michael Pfreundschuh, Eva Wagner, Gernot Stuhler, Hermann Einsele, Hubert Schrezenmeier, Joannis Mytilineos
Natural Killer cells (NK) are lymphocytes with the potential to recognize and lyse cells which escaped T-cell mediated lysis due to their aberrant HLA expression profiles. Killer cell immunoglobulin-like receptors (KIR) influence NK-cell activity by mediation of activating or inhibitory signals upon interaction with HLA-C (C1, C2) ligands. Therefore, absence of ligands for donor inhibitory KIRs following hematopoietic stem cell transplantation (HSCT) may have an influence on its outcome. Previous studies showed that C1 negative patients have a decreased HSCT outcome...
2017: PloS One
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