Read by QxMD icon Read


Max Kolton, Ellen R Graber, Ludmila Tsehansky, Yigal Elad, Eddie Cytryn
The 'biochar effect' depicts a phenomenon in which biochar soil amendment enhances plant performance by promoting growth and suppressing disease. Although this phenomenon has been observed in numerous studies, the mode of action that explains it is currently unknown. In order to elucidate mechanisms responsible for the 'biochar effect', we comprehensively monitored tomato plant development and resistance to the foliar fungal pathogen Botrytis cinerea, in biochar-amended and nonamended soils using native biochar and washed biochar, striped of labile chemical constituents...
October 25, 2016: New Phytologist
Anne Argenta, Latha Satish, Phillip Gallo, Fang Liu, Sandeep Kathju
OBJECTIVE: To determine if local prophylactic application of probiotic bacteria to burn wounds will prevent death in a mouse model of burn wound sepsis. BACKGROUND: Infection remains the most common complication after burn injury and can result in sepsis and death, despite the use of topical and systemic antibiotics. Pseudomonas aeruginosa is a frequently implicated pathogen. Local application of probiotics directly to burn wounds is an attractive novel intervention that avoids the pitfalls of standard antibiotic therapies...
2016: PloS One
Ryan C Johnson, Michael W Ellis, Carey D Schlett, Eugene V Millar, Patrick T LaBreck, Deepika Mor, Emad M Elassal, Jeffrey B Lanier, Cassie L Redden, Tianyuan Cui, Nimfa Teneza-Mora, Danett K Bishop, Eric R Hall, Kimberly A Bishop-Lilly, D Scott Merrell
: Military trainees are at high risk for skin and soft-tissue infections (SSTIs). Although Staphylococcus aureus is associated with purulent SSTI, it is unclear to what degree this pathogen causes nonpurulent cellulitis. To inform effective prevention strategies and to provide novel insights into SSTI pathogenesis, we aimed to determine the etiology of SSTI in this population. We conducted a prospective observational study in US Army Infantry trainees with SSTI (cutaneous abscesses and cellulitis) from July 2012 through December 2014...
2016: PloS One
Aurélien Guillou, Katia Troha, Hui Wang, Nathalie C Franc, Nicolas Buchon
Phagocytosis is an ancient mechanism central to both tissue homeostasis and immune defense. Both the identity of the receptors that mediate bacterial phagocytosis and the nature of the interactions between phagocytosis and other defense mechanisms remain elusive. Here, we report that Croquemort (Crq), a Drosophila member of the CD36 family of scavenger receptors, is required for microbial phagocytosis and efficient bacterial clearance. Flies mutant for crq are susceptible to environmental microbes during development and succumb to a variety of microbial infections as adults...
October 2016: PLoS Pathogens
Lital Meir-Gruber, Yossi Manor, Shiraz Gefen-Halevi, Musa Y Hindiyeh, Fernando Mileguir, Roberto Azar, Gill Smollan, Natasha Belausov, Galia Rahav, Ari Shamiss, Ella Mendelson, Nathan Keller
The presence of pan-resistant bacteria worldwide possesses a threat to global health. It is difficult to evaluate the extent of carriage of resistant bacteria in the population. Sewage sampling is a possible way to monitor populations. We evaluated the presence of pan-resistant bacteria in Israeli sewage collected from all over Israel, by modifying the pour plate method for heterotrophic plate count technique using commercial selective agar plates. This method enables convenient and fast sewage sampling and detection...
2016: PloS One
Mohammad Shakir, Summaiya Hanif, Md Fazle Alam, Hina Younus
Novel bio-relevant monometallic Schiff base complexes of the type, [Cu(L(1))2] (1), [Zn(L(1))2]·2H2O (2), [Cu(L(2))2]·2H2O (3) and [Zn(L(2))2]·H2O (4) [L(1)(E)-3-(((3-chloro-4-hydroxyphenyl)imino)methyl)naphthalen-2-ol and L(2)(E)-2-chloro-4-((1-(5-chloro-2-hydroxyphenyl)ethylidene)amino)phenol] were synthesized and characterized. A comparative account of analytical, spectroscopic (FT-IR, (1)H and (13)C NMR, Mass, UV-vis and EPR), thermal (TGA/DTA), XRD and SEM studies revealed a correlation between the structure and function of these biologically active molecular entities...
October 11, 2016: Journal of Photochemistry and Photobiology. B, Biology
Sarah E Clark, Jeanette E Purcell, Saad Sammani, Earl K Steffen, Marcus J Crim, Robert S Livingston, Cynthia Besch-Williford, Jeffrey D Fortman
A group studying acute lung injury observed an increased percentage of neutrophils in the bronchoalveolar lavage (BAL) fluid of mice. BAL was performed, and lung samples were collected sterilely from 5 C57BL/6 mice that had been bred inhouse. Pure colonies of bacteria, initially identified as Bordetella hinzii were cultured from 2 of the 5 mice which had the highest percentages of neutrophils (21% and 26%) in the BAL fluid. Subsequent sequencing of a portion of the ompA gene from this isolate demonstrated 100% homology with the published B...
2016: Comparative Medicine
Krista Lundelin, Tuija Poussa, Seppo Salminen, Erika Isolauri
BACKGROUND: Societies worldwide are faced with a progressive increase in immune-mediated health problems such as allergic, autoimmune and inflammatory diseases, as well as obesity. Perinatal administration of specific probiotic bacteria is an attractive approach in reducing the risk of these conditions, but long-term efficacy and safety data are lacking. The aim here was to evaluate the clinical benefit and long-term safety of specific probiotics administered during the perinatal period...
October 25, 2016: Pediatric Allergy and Immunology
R E Frye, S Rose, J Chacko, R Wynne, S C Bennuri, J C Slattery, M Tippett, L Delhey, S Melnyk, S G Kahler, D F MacFabe
Propionic acid (PPA) is a ubiquitous short-chain fatty acid, which is a major fermentation product of the enteric microbiome. PPA is a normal intermediate of metabolism and is found in foods, either naturally or as a preservative. PPA and its derivatives have been implicated in both health and disease. Whereas PPA is an energy substrate and has many proposed beneficial effects, it is also associated with human disorders involving mitochondrial dysfunction, including propionic acidemia and autism spectrum disorders (ASDs)...
October 25, 2016: Translational Psychiatry
Kinda Fattouh, Diane Collet-Benzaquen, Anne M Provensal, Françoise Desseigne, Christine Castillo, Patrick Combemale, Arnaud de la Fouchardière
Necrotizing Infundibular Crystalline Folliculitis (NICF) is rare entity of unknown pathogenesis presenting as follicular crystalline papules arising in seborrheic areas. We report 2 cases of NICF in patients under targeted therapy for metastatic adenocarcinoma. In one case, the lesions reappeared cyclically every 3 weeks after each injection and in the other case, lesions persisted until disruption of the continuous oral therapy. Punch-biopsies demonstrated folliculitis with a plugging crystalline material associated with either bacteria or yeast...
September 27, 2016: American Journal of Dermatopathology
KathyJo Ann Jackson
Klebsiella oxytoca is a gram-negative bacterium that can be found throughout the environment as well as on mucosal membranes of mammals including humans. This bacterium is responsible for a variety of infections in humans including nosocomial infections resulting in hospital outbreaks. Reptiles including snakes, tuataras, and turtles have been shown to harbor this bacterium, and previous studies have shown that pet reptiles are a potential source for dissemination of pathogenic bacteria. Green anoles (Anolis carolensis) are a common lizard found in the southeastern part of the United States...
October 25, 2016: Vector Borne and Zoonotic Diseases
Thomas Lange, Cheng-Wen Ko, Ping-Hong Lai, Michael Dacko, Shang-Yueh Tsai, Martin Buechert
Valine and lactate have been recognized as important metabolic markers to diagnose brain abscess by means of MRS. However, in vivo unambiguous detection and quantification is hampered by macromolecular contamination. In this work, MEGA-PRESS difference editing of valine and lactate is proposed. The method is validated in vitro and applied for quantitative in vivo experiments in one healthy subject and two brain abscess patients. It is demonstrated that with this technique the overlapping lipid signal can be reduced by more than an order of magnitude and thus the robustness of valine and lactate detection in vivo can be enhanced...
October 25, 2016: NMR in Biomedicine
Cheong K C Kwong Chung, Francesca Ronchi, Markus B Geuking
Healthy host-microbial mutualism relies on compartmentalization and proper regulation of systemic and mucosal immune responses. Nevertheless, the systemic immune system is frequently exposed to bouts of bacteraemia, which can trigger systemic antimicrobial immune reactivity including CD4(+) T cells. Low level bacteraemia can occur when immune compartmentalization is compromised, for example in the presence of innate immune deficiency or following use of nonsteroidal anti-inflammatory drugs (NSAID). We generated an Escherichia coli strain expressing a defined T helper neo-epitope to study systemic antigen-specific antimicrobial CD4(+) T cells and their potential involvement in the pathogenicity of inflammatory bowel diseases (IBD)...
October 24, 2016: Immunology
Susanta Hazra, Ricardo Meyrelles, Adilia Januário Charmier, Patrícia Rijo, M Fátima C Guedes da Silva, Armando J L Pombeiro
The Schiff base H2L(1) [N,N'-ethylenebis(3-methoxysalicylaldimine)] or H2L(2) [N,N'-ethylenebis(3-ethoxysalicylaldimine)] was reacted with MCl2·xH2O and SnCl4·5H2O to afford the supramolecular heterobimetallic systems (H2ED)(2+)·2[ML]·[SnCl6](2-) [M = Cu, L = L(1) (1), L = L(2) (2); M = Ni, L = L(1) (3), L = L(2) (4); ED = 1,2-ethylenediamine], whose structures were established by single crystal X-ray analyses. Each structure includes different entities, viz. a mononuclear [CuL]/[NiL] neutral complex (coformer), a hexachlorostannate dianion [SnCl6](2-), a 1,2-ethylenediammonium dication (H2ED(2+)) and, only in 2 and 4, a methanol molecule...
October 25, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
Joanna Krysiak, Stephan A Sieber
Understanding the molecular mechanisms of bacterial pathogenesis and virulence is of great importance from both an academic and clinical perspective, especially in view of an alarming increase in bacterial resistance to existing antibiotics and antibacterial agents. Use of small molecules to dissect the basis of these dynamic processes is a very attractive approach due to their ability for rapid spatiotemporal control of specific biochemical functions. Activity-based protein profiling (ABPP), employing small molecule probes to interrogate enzyme activities in complex proteomes, has emerged as a powerful tool to study bacterial pathogenesis...
2017: Methods in Molecular Biology
Ching-Yu Lee, Yen-Yao Li, Tsan-Wen Huang, Tsung-Yu Huang, Wei-Hsiu Hsu, Yao-Hung Tsai, Jou-Chen Huang, Kuo-Chin Huang
PURPOSE: No reports have been published on synchronous multifocal necrotizing fasciitis (SMNF), a multifocal presence of necrotizing fasciitis in different extremities. We evaluated the clinical characteristics and outcomes of SMNF. METHODS: Eighteen patients (14 men, 4 women; mean age: 59 years) diagnosed with SMNF of the extremities between January 2004 to December 2012 were enrolled and evaluated. RESULTS: Vibrio species were the most commonly (78%; n = 14) isolated; others were two cases (11%) of Aeromonas spp...
October 24, 2016: Infection
Daniel Stern, Martin Richter, Livia Schrick, Peter Lasch, Kathrin Keeren, Angela Polleichtner, Karin Lemmer, Andreas Nitsche, Roland Grunow, Christian Herzog, Brigitte G Dorner, Lars Schaade
In Europe, besides the threat of terrorist attacks involving conventional methods such as explosive devices and automatic weapons, there is also a potential threat of terrorist groups using non-conventional material like biological agents in the scope of future attacks. Consequently, rapid and reliable detection systems for biological agents are being developed and tested continuously to inform crisis management. For environmental detection, a broad spectrum of different laboratory-based techniques has been developed for relevant biological agents...
October 24, 2016: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
Zilong Wu, Glen Kelp, Maruthi Nagavalli Yogeesh, Wei Li, Kyle M McNicholas, Andrew Briggs, Bharath Bangalore Rajeeva, Deji Akinwande, Seth R Bank, Gennady Shvets, Yuebing Zheng
There has been strong interest in developing multi-band plasmonic metasurfaces for multiple optical functions on single platforms. Herein, we developed Au moiré metasurface patches (AMMP), which leverage the tunable multi-band responses of Au moiré metasurfaces and the additional field enhancements of the metal-insulator-metal configuration to achieve dual-band plasmon resonance modes in near-infrared and mid-infrared regimes with high field enhancement. Furthermore, we demonstrate the multifunctional applications of AMMP, including surface-enhanced infrared spectroscopy, optical capture and patterning of bacteria, and photothermal denaturation of proteins...
October 25, 2016: Nanoscale
Yuji Nadatani, Xiaofang Huo, Xi Zhang, Chunhua Yu, Edaire Cheng, Qiuyang Zhang, Kerry B Dunbar, Arianne Theiss, Thai H Pham, David H Wang, Toshio Watanabe, Yasuhiro Fujiwara, Tetsuo Arakawa, Stuart J Spechler, Rhonda F Souza
BACKGROUND & AIMS: Microbial molecular products incite intestinal inflammation by activating Toll-like receptors (TLRs) and inflammasomes of the innate immune system. This system's contribution to esophageal inflammation is not known. Gram-negative bacteria, which dominate the esophageal microbiome in reflux esophagitis, produce lipopolysaccharide (LPS), a TLR4 ligand. TLR4 signaling produces pro-interleukin (IL)1β, pro-IL18, and NOD-like receptor protein 3 (NLRP3), which prime the NLRP3 inflammasome...
July 2016: Cellular and Molecular Gastroenterology and Hepatology
Murwantoko Murwantoko, Arif Bimantara, Roosmanto Roosmanto, Masashi Kawaichi
A pathogen of giant freshwater prawn, Macrobrachium rosenbergii, was recently recorded in a hatchery in Yogyakarta. The clinical symptom in post-larvae (PL) was a whitish appearance of the muscles in the tail. Histological examination revealed myonecrosis with massive infiltration of myonuclei and hemocytes. RT-PCR products of 850 bp were obtained when using RNA from diseased PL as a template. The clinical signs and RT-PCR amplicon were reproduced in M. rosenbergii inoculated with bacteria-free inocula. Electron microscopy demonstrated that the M...
2016: SpringerPlus
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"