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https://www.readbyqxmd.com/read/29779239/indoor-trichoderma-strains-emitting-peptaibols-in-guttation-droplets
#1
E Castagnoli, T Marik, R Mikkola, L Kredics, M A Andersson, H Salonen, J Kurnitski
AIMS: The production of peptaibols, toxic secondary metabolites of Trichoderma, in the indoor environment is not well-documented. Here we investigated the toxicity of peptaibols in the guttation droplets and biomass of Trichoderma strains isolated from problematic buildings. METHODS AND RESULTS: Seven indoor-isolated strains of T. atroviride, T. trixiae, T. paraviridescens and T. citrinoviride were cultivated on malt extract agar, gypsum boards and paperboards. Their biomass extracts and guttation droplets were highly cytotoxic in resting and motile boar sperm cell assays and in inhibition of somatic cell proliferation assays...
May 19, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29777958/sssupramolecular-poly-acrylic-acid-f127-hydrogel-with-hydration-controlled-nitric-oxide-release-for-enhancing-wound-healing
#2
Mathilde Champeau, Valéria Póvoa, Lucas Militão, Flávia Cabrini, Guilherme F Picheth, Florian Meneau, Carlos P Jara, Eliana P de Araujo, Marcelo G de Oliveira
Topical nitric oxide (NO) delivery has been shown to accelerate wound healing. However, delivering NO to wounds at appropriate rates and doses requires new biomaterial-based strategies. Here, we describe the development of supramolecular interpolymer complex hydrogels comprising PEO-PPO-PEO (F127) micelles embedded in a poly(acrylic acid) (PAA) matrix, with S-nitrosoglutathione (GSNO) molecules dissolved in the hydrophilic domain. We show that PAA:F127/GSNO hydrogels start releasing NO upon hydration at rates controlled by their rates of water absorption...
May 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29776943/mycophenolate-mofetil-induced-colitis-in-a-patient-with-systemic-sclerosis
#3
Gianluca Moroncini, Devis Benfaremo, Alessandra Mandolesi, Armando Gabrielli
We present the case of a 44-year-old woman affected by systemic sclerosis (SSc) who was admitted to our department for abdominal pain, nausea, vomiting and fever. Imaging studies showed the presence of a thickened colon wall involving the descending colon and the sigma, while a subsequent endoscopy revealed multiple serpiginous ulcers covered with fibrin and exudates. Under the hypothesis of drug-induced colitis, mycophenolate mofetil (MMF), which she was taking for SSc-related interstitial lung disease (ILD), was readily suspended, with a rapid recovery without further treatment...
May 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29776416/rapid-urease-test-rut-for-evaluation-of-urease-activity-in-oral-bacteria-in-vitro-and-in-supragingival-dental-plaque-ex-vivo
#4
Gunnar Dahlén, Haidar Hassan, Susanne Blomqvist, Anette Carlén
BACKGROUND: Urease is an enzyme produced by plaque bacteria hydrolysing urea from saliva and gingival exudate into ammonia in order to regulate the pH in the dental biofilm. The aim of this study was to assess the urease activity among oral bacterial species by using the rapid urease test (RUT) in a micro-plate format and to examine whether this test could be used for measuring the urease activity in site-specific supragingival dental plaque samples ex vivo. METHODS: The RUT test is based on 2% urea in peptone broth solution and with phenol red at pH 6...
May 18, 2018: BMC Oral Health
https://www.readbyqxmd.com/read/29774347/effect-of-humic-acid-bacterial-exudates-on-sorption-desorption-interactions-of-90-sr-with-brucite
#5
Hollie Ashworth, Liam Abrahamsen-Mills, Nick Bryan, Lynn Foster, Jonathan R Lloyd, Simon Kellet, Sarah Heath
One of the nuclear fuel storage ponds at Sellafield (United Kingdom) is open to the air, and has contained a significant inventory of corroded magnox fuel and sludge for several decades. As a result, some fission products have also been released into solution. 90Sr is known to constitute a small mass of the radionuclides present in the pond, but due to its solubility and activity, it is at risk of challenging effluent discharge limits. The sludge is predominantly composed of brucite (Mg(OH)2), and organic molecules are known to be present in the pond liquor with occasional algal blooms restricting visibility...
May 18, 2018: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/29774037/plant-sediment-interactions-in-salt-marshes-an-optode-imaging-study-of-o-2-ph-and-co-2-gradients-in-the-rhizosphere
#6
Ketil Koop-Jakobsen, Peter Mueller, Robert J Meier, Gregor Liebsch, Kai Jensen
In many wetland plants, belowground transport of O2 via aerenchyma tissue and subsequent O2 loss across root surfaces generates small oxic root zones at depth in the rhizosphere with important consequences for carbon and nutrient cycling. This study demonstrates how roots of the intertidal salt-marsh plant Spartina anglica affect not only O2 , but also pH and CO2 dynamics, resulting in distinct gradients of O2 , pH, and CO2 in the rhizosphere. A novel planar optode system (VisiSens TD® , PreSens GmbH) was used for taking high-resolution 2D-images of the O2 , pH, and CO2 distribution around roots during alternating light-dark cycles...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29774035/aldaulactone-an-original-phytotoxic-secondary-metabolite-involved-in-the-aggressiveness-of-alternaria-dauci-on-carrot
#7
Julia Courtial, Latifa Hamama, Jean-Jacques Helesbeux, Mickaël Lecomte, Yann Renaux, Esteban Guichard, Linda Voisine, Claire Yovanopoulos, Bruno Hamon, Laurent Ogé, Pascal Richomme, Mathilde Briard, Tristan Boureau, Séverine Gagné, Pascal Poupard, Romain Berruyer
Qualitative plant resistance mechanisms and pathogen virulence have been extensively studied since the formulation of the gene-for-gene hypothesis. The mechanisms involved in the quantitative traits of aggressiveness and plant partial resistance are less well-known. Nevertheless, they are prevalent in most plant-necrotrophic pathogen interactions, including the Daucus carota - Alternaria dauci interaction. Phytotoxic metabolite production by the pathogen plays a key role in aggressiveness in these interactions...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29772364/pathophysiology-and-non-surgical-treatment-of-chronic-subdural-hematoma-from-past-to-present-to-future
#8
REVIEW
Dana C Holl, Victor Volovici, Clemens M F Dirven, Wilco C Peul, Fop van Kooten, Korné Jellema, Niels A van der Gaag, Ishita P Miah, Kuan H Kho, Heleen M den Hertog, Hester F Lingsma, Ruben Dammers
BACKGROUND: Chronic subdural hematoma (CSDH) is one of the more frequent pathological entities in daily neurosurgical practice. Historically, CSDH was considered a progressive, recurrent bleeding with a traumatic etiology. However, recent evidence suggests a complex intertwined pathway of inflammation, angiogenesis, local coagulopathy, recurrent microbleeds and exudates. The aim of the present review is to collect existing data on pathophysiology of CSDH in order to direct further research questions aiming to optimize treatment for the individual patient...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29772046/bilateral-myelinated-retinal-nerve-fibers-associated-with-bilateral-vitreous-cysts-and-solitary-vasoproliferative-tumor-a-new-syndrome
#9
Nora W Muakkassa, Eric J Schwaber, Nora Laver, Jay S Duker
The authors report a case of a 57-year-old male with high myopia, extensive bilateral myelination of the retinal nerve fiber layer, bilateral vitreous cysts, and a solitary vasoproliferative tumor in the right eye. He underwent pars plana vitrectomy and multiple transpupillary thermotherapy treatments for recurrent vitreous hemorrhages and subretinal exudation from the vasoproliferative tumor. To the authors' knowledge, this is the first description of this constellation of findings and suggests this represents a new syndrome...
May 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29768381/tuberculous-pleurisy-mimicking-mycoplasma-pneumoniae-infection-in-a-previously-healthy-young-adult-a-case-report
#10
Daizo Yaguchi, Motoshi Ichikawa, Masato Shizu, Noriko Inoue, Daisuke Kobayashi, Naoyuki Imai, Masao Ito
RATONALE: Sometimes, pleural effusion accompanying an acute Mycoplasma pneumoniae infection or tuberculous pleurisy has similar analysis results. We report a case of tuberculous pleurisy which was initially diagnosed as acute M pneumoniae infection, which is of special interest because anti-Mycoplasma antibody results were positive, which served as a red herring. PATIENT CONCERNS: A 20-year-old woman visited the outpatient emergency romm of our hospital for chief complaints of high fever, dry cough, and pleuralgia persiting for 2 days...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29767913/development-of-coverage-and-its-evaluation-in-the-treatment-of-chronic-wounds
#11
Marcia Diana Umebayashi Zanoti, Helena Megumi Sonobe, Sidney José Lima Ribeiro, Ana Maria Minarelli Gaspar
OBJECTIVES: To describe the development of the bacterial cellulose coating with anti-inflammatory Ibuprofen (BC/Ibu) and to evaluate the cicatrization process with its use in patients with chronic wounds of venous and diabetic etiology. METHODS: Longitudinal descriptive study. The cellulose membrane, cultivated with bacteria Gluconacetobacter xylinus and with incorporation of Ibuprofen, was used in the treatment of patients with chronic wounds in public health services in a Brazilian municipality...
October 2017: Investigación y Educación en Enfermería
https://www.readbyqxmd.com/read/29765946/radiation-retinopathy-47-years-following-brachytherapy-for-retinoblastoma
#12
Claudine Bellerive, Arun D Singh
A 50-year-old female who had undergone enucleation in the left eye and brachytherapy in the right eye for retinoblastoma at the age of 2 years was diagnosed with nonproliferation radiation retinopathy 47 years following the initial treatment. The patient had noticed black spots in her vision (scotomas) that interfered with reading. New onset of microaneurysms and lipid exudation threatening the foveola was noted on examination of the right eye. Initial visual acuity (VA) was 20/25. Optical coherence tomography showed no evidence of macular edema, but parafoveal lipid exudation was present...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29765174/treatment-of-retinal-capillary-hemangioma-using-810-nm-infrared-laser
#13
Pavel Pochop, Martina Kodetova, Dagmar Dotrelova
AIM: Presentation of the efficacy of infrared laser for the treatment of retinal capillary hemangioma (RCH). METHODS: The treatment and follow-up of nine eyes (fourteen tumors of different sizes and localizations) in seven patients (five children) with RCH. Infrared diode laser (810 nm) was used for modified transpupillary thermotherapy (TTT) in long exposition mode and power between 200 and 1200 mW with a beam diameter of 2 mm (indirect ophthalmoscope, +28 D or +40 D lens) or 0...
May 16, 2018: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29764997/root-exuded-coumarin-shapes-the-root-microbiome
#14
Derek S Lundberg, Paulo J P L Teixeira
No abstract text is available yet for this article.
May 15, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29764547/-comparison-of-lung-protection-for-hydrochloric-acid-or-oleic-acid-induced-rat-acute-respiratory-distress-syndrome-models-pretreated-with-penehyclidine
#15
Yumei Cheng, Zhou Yang, Feng Shen, Bo Liu, Yahui Wang, Yanqi Wu, Ling Yao, Yuqing Liu
OBJECTIVE: To compare the lung protection roles of intraperitoneal pre-injection with penehyclidine for two kinds of rat models with pulmonary and extrapulmonary acute respiratory distress syndrome (ARDSp and ARDSexp). METHODS: Forty healthy adult Sprague-Dawley (SD) rats were randomly divided into five groups (each n = 8): the rats in sham group received only tracheotomy; the ARDS rat models were reproduced by intratracheal inhalation of 0.1 mol/L hydrochloric acid (HCl) 2 mL/kg to simulate ARDSexp (HCl group) and 0...
May 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29758857/herbivory-induced-non-local-responses-of-the-clonal-invader-carpobrotus-edulis-are-not-mediated-by-clonal-integration
#16
Jonatan Rodríguez, Mariasole Calbi, Sergio R Roiloa, Luís González
The anthropogenic displacement of species around the world results in new environmental situations where native and exotic species coexist. Exotic plants have to face native herbivores, and interactions between introduced plants and native herbivores seem to play an important role in the invasiveness of some exotic plant species. We studied the role of clonal integration in induce morphological, physiological, and biochemical responses in the clonal invader Carpobrotus edulis against the attack of the native snail Theba pisana...
August 15, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29758372/percutaneous-endoscopic-lumbar-surgery-via-transfacet-approach-for-lumbar-synovial-cyst
#17
Hsuan-Han Wu, Lei Chu, Yong-Jian Zhu, Chun-Yuan Cheng, Chien-Min Chen
BACKGROUND: There are currently no high-quality studies on the optimal therapeutic approach for juxtafacet cyst as treatment guidelines have not been developed. Herein, a novel technique in which using an endoscopic transfacet approach to treat a patient with symptomatic lumbar synovial cyst was presented. . CASE DESCRIPTION: A 87-year-old man presented with severe dull pain in the right anterior thigh had developed. Lumbar magnetic resonance imaging (MRI) revealed disc extrusion over the central canal zone at the L2-3 and L4-L5 level, and an ovoid lesion with a hyperintense center plus a hypointense rim on the T2-weighted image...
May 11, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29757407/transcriptome-and-metabolome-analysis-provide-insights-into-root-and-root-released-organic-anion-responses-to-phosphorus-deficiency-in-oat
#18
Yanliang Wang, Erik Lysøe, Tegan Armarego-Marriott, Alexander Erban, Lisa Paruch, Andre van Eerde, Ralph Bock, Jihong Liu-Clarke
Root and root-released organic anions play important roles in uptake of phosphorus (P), an essential macronutrient for food production. Oat, ranking sixth in the world's cereal production, contains valuable nutritional compounds and can withstand poor soil conditions. Our aim was to investigate root transcriptional and metabolic responses of oat grown under P-deficient and P-sufficient conditions. We conducted a hydroponic experiment and measured root morphology and organic anion exudation, and analysed changes in the transcriptome and metabolome...
May 11, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29756639/the-carboxylate-releasing-phosphorus-mobilizing-strategy-can-be-proxied-by-foliar-manganese-concentration-in-a-large-set-of-chickpea-germplasm-under-low-phosphorus-supply
#19
Jiayin Pang, Ruchi Bansal, Hongxia Zhao, Emilien Bohuon, Hans Lambers, Megan H Ryan, Kosala Ranathunge, Kadambot H M Siddique
Root foraging and root physiology such as exudation of carboxylates into the rhizosphere are important strategies for plant phosphorus (P) acquisition. We used 100 chickpea (Cicer arietinum) genotypes with diverse genetic backgrounds to study the relative roles of root morphology and physiology in P acquisition. Plants were grown in pots in a low-P sterilized river sand supplied with 10 μg P g-1 soil as FePO4 , a poorly soluble form of P. There was a large genotypic variation in root morphology (total root length, root surface area, mean root diameter, specific root length and root hair length), and root physiology (rhizosheath pH, carboxylates and acid phosphatase activity)...
May 14, 2018: New Phytologist
https://www.readbyqxmd.com/read/29756537/use-of-negative-pressure-wound-therapy-in-a-chronic-leg-wound-with-coexisting-rheumatoid-arthritis-a-case-study
#20
Dariusz Bazaliński, Paweł Więch, Beata Barańska, Monika Binkowska-Bury
We present a case of a 69-year-old woman with rheumatoid arthritis. The patient's condition was managed with steroid therapy for more than 12 years. She had a coexisting infected chronic ulceration in the left leg, which was treated with negative pressure wound therapy for 52 days. Use of this therapy within the wound reduced exudate and the bacterial count, which dramatically accelerated the process of wound healing.
January 1, 2018: Journal of International Medical Research
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