23,440 results match your criteria Latex Allergy


A polarization sensitive light scattering unit for high throughput screening.

Rev Sci Instrum 2018 Nov;89(11):113109

Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA.

A simple, effective light scattering prototype sensitive to both polarized and depolarized scattering was constructed, and its performance was tested on a variety of pure liquids and optically isotropic and anisotropic polymer solutions and colloidal suspensions. The results, performance, and means to further improvement are reported here. Because of its simplicity and low cost, many identical units can be produced to construct a simultaneous multiple sample light scattering platform that can be used to monitor polymer and colloid solution stability, phase changes, aggregation, degradation, etc. Read More

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November 2018

In Vitro Analysis of the Cytotoxicity of Indirect Restorative Materials.

Braz Dent J 2018 Sep-Oct;29(5):507-512

Department of Molecular and Cell Biology, Institute of Biology, UFF - Universidade Federal Fluminse, Niterói, RJ, Brazil.

This study aimed to compare the cytotoxicity of the Vita AC12, Lava Ultimate, Vita Enamic and InSync indirect restorative materials. Extracts of each material were prepared by incubation for 1, 7 and 40 days, with daily washing. Human gingival fibroblasts were exposed to the extracts, and cell viability was evaluated by sequential assessment of mitochondrial activity (XTT), membrane integrity (NRU) and cell density (CVDE). Read More

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December 2017
2 Reads

The artery of Mouchet: blood supply of the septomarginal trabecula in 50 human hearts.

Rev Assoc Med Bras (1992) 2018 Oct;64(10):916-921

Morphology Department, Fluminense Federal University, Niterói/RJ, Brasil.

The septomarginal trabecula is a muscular structure which transmits the right branch of the atrioventricular bundle. It is usually supplied by a branch from the second anterior septal artery. Anastomoses between the right and left coronary arteries may happen on the septomarginal trabecula. Read More

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October 2018

Breeding and Engineering Trees to Accumulate High Levels of Terpene Metabolites for Plant Defense and Renewable Chemicals.

Authors:
Gary F Peter

Front Plant Sci 2018 20;9:1672. Epub 2018 Nov 20.

School of Forest Resources and Conservation, Genetics Institute, University of Florida, Gainesville, FL, United States.

Plants evolved the capacity to synthesize highly diverse sets of secondary metabolites which are important for plant adaptation and health. In forest trees, many classes of compounds, particularly ones related to defense against insects, fungi, and bacteria accumulate to levels that enable their recovery and commercial use. One of the oldest examples is conifer terpenes, but terpenes are important secondary products from other tree species including eucalypts. Read More

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November 2018

Comparative transcriptomics between high and low rubber producing Taraxacum kok-saghyz R. plants.

BMC Genomics 2018 Dec 4;19(1):875. Epub 2018 Dec 4.

Trisaia Research Center, ENEA, Italian National Agency for New Technologies Energy and Sustainable Economic Development, MT, 75026, Rotondella, Italy.

Background: Taraxacum kok-saghyz R. (Tks) is a promising alternative species to Hevea brasiliensis for production of high quality natural rubber (NR). A comparative transcriptome analysis of plants with differential production of NR will contribute to elucidate which genes are involved in the synthesis, regulation and accumulation of this natural polymer and could help to develop Tks into a rubber crop. Read More

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December 2018

Role of Non-Albicans Candida and Candida Albicans in Oral Squamous Cell Cancer Patients.

J Oral Maxillofac Surg 2018 Dec 14;76(12):2564-2571. Epub 2018 Jun 14.

Professor, Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.

Purpose: This study examined the prevalence of Candida species in the saliva of oral squamous cell carcinoma patients and its effect on the mortality rate.

Materials And Methods: One hundred patients with oral cavity squamous cell carcinoma undergoing protocol treatment at Helsinki University Hospital were recruited into the study from March 2011 through 2014. For comparison, 75 age-matched controls with no current or previously treated oral cancer were recruited. Read More

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December 2018
2 Reads

Electron tomography on latex particles suspended in water using environmental scanning electron microscopy.

Micron 2018 Nov 24;117:60-67. Epub 2018 Nov 24.

Univ Lyon, INSA-Lyon, UCBL, MATEIS, CNRS UMR 5510, F-69621 Villeurbanne, France. Electronic address:

Tilted image series are acquired on liquid suspensions of latex particles supported by a carbon membrane. To do this, a home-made stage fitting in an Environmental Scanning Electron Microscope (ESEM) is optimized to minimize cold losses and thus improve both sample stability and spatial resolution in the images. As latex particles are electron-sensitive materials, sample degradation and stability are taken into account in the choice of the parameters for tilted image series acquisition. Read More

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November 2018

PMMA particles coated with chitosan-silver nanoparticles as a dual antibacterial modifier for natural rubber latex films.

Colloids Surf B Biointerfaces 2018 Nov 19;174:544-552. Epub 2018 Nov 19.

Department of Chemistry, Faculty of Science, Mahidol University, Rama 6 Road, Phyathai, Bangkok, 10400, Thailand.

The antibacterial activity in sulphur prevulcanized natural rubber (SPNR) latex film was effectively improved by deposition of poly(methyl methacrylate) (PMMA) particles encircled with chitosan-coated silver nanoparticles (AgNPs-CS). With the focus on a green process, CS was selected as a safe reducing and stabilizing agent for the one-step synthesis of AgNPs-CS (38 nm, +40.4 mV) in an autoclave. Read More

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November 2018
1 Read

Involvement of HbMC1-mediated cell death in tapping panel dryness of rubber tree (Hevea brasiliensis).

Tree Physiol 2018 Nov 29. Epub 2018 Nov 29.

Hainan Provincial Key Laboratory of Tropical Crops Cultivation and Physiology, Key Laboratory of Biology and Genetic Resources of Rubber Tree, Ministry of Agriculture and Rural Affairs, Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou, China.

Tapping panel dryness (TPD) causes a significant reduction in the latex yield of rubber tree (Hevea brasiliensis Muell. Arg.). Read More

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November 2018
2 Reads

l-Quebrachitol Promotes the Proliferation, Differentiation, and Mineralization of MC3T3-E1 Cells: Involvement of the BMP-2/Runx2/MAPK/Wnt/β-Catenin Signaling Pathway.

Molecules 2018 Nov 26;23(12). Epub 2018 Nov 26.

Department of Biochemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90110, Thailand.

Osteoporosis is widely recognized as a major health problem caused by an inappropriate rate of bone resorption compared to bone formation. Previously we showed that d-pinitol inhibits osteoclastogenesis but has no effect on osteoblastogenesis. However, the effect on osteoblast differentiation of its isomer, l-quebrachitol, has not yet been reported. Read More

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November 2018

Preparation and photochromic behavior of spiropyran-containing fluorinated polyacrylate hydrophobic coatings.

Langmuir 2018 Nov 28. Epub 2018 Nov 28.

In this study, spiropyran (SP)-containing fluorinated polyacrylate (F-PA-SP) latex was prepared by emulsion polymerization using fluorinated and SP-based acrylic monomers as raw materials. FT-IR and 1H-NMR demonstrate that the F-PA-SP copolymer has been successfully synthesized, and DLS and TEM analyses indicate that the synthesized latex has presented a uniform particle size of approximately 200 nm. XPS, AFM and water contact angle (WCA) analysis were used to investigate the surface properties of the F-PA-SP coating and demonstrate that its hydrophobicity is enhanced by addition of a fluorinated acrylic monomer. Read More

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November 2018

Immunodiagnosis of Visceral Leishmaniasis: Current Status and Challenges: A Review Article.

Iran J Parasitol 2018 Jul-Sep;13(3):331-341

Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.

Background: Diagnosis of Visceral Leishmaniasis (VL) is still challenging. This review highlighted current status and challenges in the serological diagnosis of VL. Furthermore, the drawback of currently available serological tests and the most recent advancement in the designing and application of these assays for the diagnosis of VL are addressed. Read More

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November 2018

Regulation of phagosome functions by post-translational modifications: a new paradigm.

Curr Opin Chem Biol 2018 Nov 24;48:73-80. Epub 2018 Nov 24.

Institute for Cell and Molecular Biosciences, Newcastle University, Newcastle-upon-Tyne, NE2 4HH, UK. Electronic address:

Phagosomes are highly dynamic organelles formed by the uptake of particles through phagocytic innate immune cells such as macrophages. Their key roles in microbe elimination and antigen presentation make them essential for innate and adaptive immunity. However, phagosomes are also important for tissue homeostasis as even in healthy individuals billions of dead cells are phagocytosed each day. Read More

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November 2018
3 Reads

Positive pressure ventilation compresses pulmonary acinar microvessels but not their supply vessels.

Microvasc Res 2018 Nov 24;122:71-77. Epub 2018 Nov 24.

The William S. Middleton Memorial Veterans Hospital, Madison, WI 53705-2286, United States of America.

Pulmonary alveolar septal capillaries receive their perfusion from a web of larger surrounding acinar vessels. Using 4 μm diam. Latex particles, we showed that positive pressure ventilation narrowed the acinar vessels as evidenced by venous 4 μm particle concentrations and perfusate flows <50% of particle concentrations in negative pressure ventilated lungs. Read More

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November 2018
1 Read

Reactivation of latent HIV-1 in vitro using an ethanolic extract from Euphorbia umbellata (Euphorbiaceae) latex.

PLoS One 2018 27;13(11):e0207664. Epub 2018 Nov 27.

Laboratório de Virologia Molecular, Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.

Euphorbia umbellata (E. umbellata) belongs to Euphorbiaceae family, popularly known as Janauba, and its latex contains a combination of phorbol esters with biological activities described to different cellular protein kinase C (PKC) isoforms. Here, we identified deoxi-phorbol esters present in E. Read More

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November 2018
3 Reads

Intraoral Endoscopic Ligation of Maxillary Artery in the Infratemporal Fossa.

J Craniofac Surg 2018 Nov 22. Epub 2018 Nov 22.

Department of Otolaryngology - Head and Neck Surgery, Endoscopic Sinus Surgery and Skull Base Surgery, Autonomous University of Veracruz, Xalapa, Mexico.

Ligation of the sphenopalatine and posterior nasal arteries is indicated for posterior epistaxis as initial treatment or when conservative measures fail. In some patients, a transnasal approach or its alternative transantral approach are not possible due to tumor filling the nasal corridor, pterygopalatine fossa, or maxillary sinus. Aim of this study was to evaluate feasibility of endoscopically assisted transoral approach for the ligation of the maxillary artery (MA). Read More

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November 2018
3 Reads

Accuracy of ultrasound-guided versus palpation-based carpometacarpal joint injections: A randomized pilot study in cadavers.

Ultrasound 2018 Nov 25;26(4):245-250. Epub 2018 Jul 25.

Department of Physical Medicine and Rehabilitation, University of Miami/Jackson Memorial Hospital, FL, USA.

Objective: To determine the accuracy of ultrasound guidance compared to palpation in performing carpometacarpal joint injections in cadavers.

Design: In all, 36 carpometacarpal joints were randomized to either ultrasound-guided or palpation-based injections, with 1 cc of blue latex solution injected into each joint. The specimens were then dissected and the distribution of the latex was assessed by two independent, blinded raters. Read More

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November 2018

Virome analyses of Hevea brasiliensis using small RNA deep sequencing and PCR techniques reveal the presence of a potential new virus.

Virol J 2018 11 26;15(1):184. Epub 2018 Nov 26.

Department of Microbiology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, 31270-901, Brazil.

Background: Hevea brasiliensis is an important commercial crop due to the high quality of the latex it produces; however, little is known about viral infections in this plant. The only virus described to infect H. brasiliensis until now is a Carlavirus, which was described more than 30 years ago. Read More

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November 2018
1 Read

Friction-lowering capabilities and human subject preferences for a hydrophilic surface coating on latex substrates: implications for increasing condom usage.

R Soc Open Sci 2018 Oct 17;5(10):180291. Epub 2018 Oct 17.

Department of Chemistry, Boston University, Boston, MA 02215, USA.

Personal lubricants can increase user satisfaction with male condoms by reducing friction and yielding a slippery sensation. However, lubricants pose disadvantages of dilution in physiologic fluids and sloughing away over repeated articulations. To address these drawbacks, a latex surface modification, which becomes lubricious in the presence of physiologic fluid, has been developed and evaluated. Read More

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October 2018
1 Read

Toxicity of silver nanoparticles released by Hancornia speciosa (Mangabeira) biomembrane.

Spectrochim Acta A Mol Biomol Spectrosc 2018 Nov 19;210:329-334. Epub 2018 Nov 19.

Instituto de Física, Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil; Instituto de Química, Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil. Electronic address:

Recent research has shown that latex from different species is able to produce tissue replacement and regeneration. Particularly, biomembranes obtained from Hancornia speciosa latex (HSB) have shown high angiogenic and osteogenic activity. Considering new materials for wound healing, it would be interesting to develop a product combining antibacterial and antifungal activities. Read More

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November 2018

[Microbiological diagnosis of invasive mycosis].

Rev Iberoam Micol 2018 Nov 21. Epub 2018 Nov 21.

Servicio de Microbiología, Hospital Universitari i Politècnic La Fe, Valencia, España. Electronic address:

The prognosis of invasive fungal infections (IFI) depends on the speed of diagnosis and treatment. Conventional diagnostic methods are of low sensitivity, laborious and too slow, leading to the need for new, faster, and more efficient diagnostic strategies. There are several techniques for diagnosing a candidemia that are faster than the conventional blood culture (BC). Read More

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November 2018
1 Read

Bark and latex harvesting short-term impact on native tree species reproduction.

Environ Monit Assess 2018 Nov 23;190(12):744. Epub 2018 Nov 23.

Laboratório de Ecologia Reprodutiva de Angiospermas, Departamento de Biologia, Universidade Federal Rural de Pernambuco, Recife, Pernambuco State, Brazil.

The bark and the latex of plants constitute non-timber forest products (NTFPs) of medicinal and economic value that are widely harvested throughout the world. Bark and latex harvesting impacts on plant reproduction are controversial in the literature. Some species are negatively impacted, some do not show any response, and others may exhibit higher flower and fruit production after harvesting. Read More

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November 2018
1 Read

Bruch's membrane allows unhindered passage of up to 2 μm latex beads in an in vivo porcine model.

Exp Eye Res 2018 Nov 20;180:1-7. Epub 2018 Nov 20.

Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.

Purpose: It has been proposed that changes in the permeability of Bruch's membrane play a role in the pathogenesis of age-related macular degeneration (AMD). This paper investigates, in an in vivo porcine model, the migration of fluorescent latex beads across the Bruch's membrane after subretinal injection.

Methods: Forty-one healthy eyes of 33 three-month-old domestic pigs received a subretinal injection of 0. Read More

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November 2018
8 Reads

Tourniquet and adrenaline use in hypospadias surgery: a survey on the current practice in Turkey.

Turk J Urol 2018 Nov 21. Epub 2018 Nov 21.

Department of Pediatric Surgery, Ankara University School of Medicine, Ankara, Turkey.

Objective: Aim of the study is to determine the hemostatic techniques among pediatric urologists in Turkey.

Material And Methods: Questionnaire forms were sent to 459 pediatric urologist by e-mail.

Results: Ninety eight of 459 participants answered the questionnaire forms. Read More

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November 2018
3 Reads

Method of deflection corrected tonometry with phantom vessel experiments.

Comput Biol Med 2018 Oct 9. Epub 2018 Oct 9.

Department of Biomedical Engineering, Rutgers-the State University of New Jersey, New Brunswick, NJ, USA.

Background: The Continuous Non-Invasive measurement of arterial Blood Pressure [CNIBP] is possible via the method of arterial tonometry and the arterial volume clamp methods. Arterial tonometry successfully measures continuous arterial pressure but requires large vessel deformation and a highly miniaturized pressure sensor to obtain a direct calibration of pressure. A properly designed tonometer is capable of achieving pressure accuracy of less than 5% error at the radial artery. Read More

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October 2018

Effects of Short- and Long-Term Variation in Resource Conditions on Soil Fungal Communities and Plant Responses to Soil Biota.

Front Plant Sci 2018 6;9:1605. Epub 2018 Nov 6.

MPG Ranch, Missoula, MT, United States.

Soil biota can strongly influence plant performance with effects ranging from negative to positive. However, shifts in resource availability can influence plant responses, with soil pathogens having stronger negative effects in high-resource environments and soil mutualists, such as arbuscular mycorrhizal fungi (AMF), having stronger positive effects in low-resource environments. Yet the relative importance of long-term vs. Read More

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November 2018
3 Reads

Evaluation of PCR-based methods for the identification of enteroaggregative hemorrhagic Escherichia coli in sprouts.

Int J Food Microbiol 2018 Nov 13;291:59-64. Epub 2018 Nov 13.

USDA, Agricultural Research Service, Eastern Regional Research Center, 600 E. Mermaid Lane, Wyndmoor, PA 19038, USA. Electronic address:

In this study real-time PCR assays were evaluated for the detection of enteroaggregative hemorrhagic Escherichia coli (EAHEC) O104:H4 in artificially contaminated mung bean and/alfalfa sprouts inoculated with 1, 10, and 100 CFU of EAHEC O104:H4 per 25 g sample (20, 10, and 2 replicates respectively). After selective culture enrichment the samples were tested using commercial real-time PCR kits detecting aggR/aaiC, stx/eae, and wzx. Using the commercial real-time PCR kits, the artificially contaminated samples were detected in the range of 75-80% positive results when contaminated with approximately 1 CFU, and 100% at 10 and 100 CFU. Read More

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November 2018
2 Reads

The Arterial Anatomy of the Lateral Ligament Complex of the Ankle: A Cadaveric Study.

Am J Sports Med 2018 Nov 19:363546518808060. Epub 2018 Nov 19.

Department of Orthopaedic Surgery, Washington University in Saint Louis/Barnes-Jewish Hospital, St Louis, Missouri, USA.

Background:: Ankle sprains are the most common musculoskeletal injury in the United States. Chronic lateral ankle instability can ultimately require operative intervention to decrease pain and restore stability to the ankle joint. There are no anatomic studies investigating the vascular supply to the lateral ankle ligamentous complex. Read More

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November 2018
6 Reads

Anatomical variations of the arterial branches from the rat iliac arteries.

J Vet Med Sci 2018 Nov 16. Epub 2018 Nov 16.

Laboratory of Veterinary Anatomy, Faculty and Institute of Agriculture, Tokyo University of Agriculture and Technology.

Animal disease models contribute to a better understanding of the pathogenic mechanisms of human and animal diseases and help develop treatments for them. Ligation of the rat iliac arteries is performed to reproduce erectile dysfunction and peripheral arterial disease. Although knowledge of the ramification of branches from the rat iliac artery is important to perform such surgery, descriptions in previous studies are insufficient. Read More

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November 2018

Mercury pollution in modern times and its socio-medical consequences.

Sci Total Environ 2018 Nov 2;654:720-734. Epub 2018 Nov 2.

University of Leuven, Center for Human Genetics, Leuven, Belgium.

Mercury plays a critical role in serious health problems due to environmental or occupational exposures. Aquatic ecosystems are an essential component of the global biogeochemical cycle of mercury, as inorganic mercury can5 be converted to toxic methyl mercury in these environments and reemissions of elemental mercury rival anthropogenic mercury releases on a global scale. The history of the Minamata disease, a typical example of industrial pollution, has shown how corporate secrecy and ignorance on part of the health authorities may influence the devastating spread of environmental contamination and the progress of disease. Read More

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November 2018
10 Reads

Human dermal fibroblast proliferation controlled by surface roughness of two-component nanostructured latex polymer coatings.

Colloids Surf B Biointerfaces 2018 Oct 29;174:136-144. Epub 2018 Oct 29.

Centre for Functional Materials, Laboratory of Physical Chemistry, Åbo Akademi University, Porthansgatan 3-5, FI-20500 Åbo, Finland.

In this study hierarchically-structured latex polymer coatings and self-supporting films were characterised and their suitability for cell growth studies was tested with Human Dermal Fibroblasts (HDF). Latex can be coated or printed on rigid or flexible substrates thus enabling high-throughput fabrication. Here, coverslip glass substrates were coated with blends of two different aqueous latex dispersions: hydrophobic polystyrene (PS) and hydrophilic carboxylated acrylonitrile butadiene styrene (ABS). Read More

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October 2018
2 Reads

Study of the adhesion of explosive residues to the finger and transfer to clothing and luggage.

Sci Justice 2018 Nov 6;58(6):415-424. Epub 2018 Jul 6.

Inquifor Research Group, Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering and University Institute of Research in Police Sciences (IUICP), University of Alcalá, Ctra. Madrid-Barcelona km 33.600, 28871 Alcalá de Henares, Madrid, Spain. Electronic address:

It is important to understand the extent of transfer of explosive particles to different surfaces in order to better evaluate potential cross-contamination by explosives in crowded security controls such as those at airports. This work investigated the transfer of nine explosive residues (ANFO, dynamite, black powder, TNT, HMTD, PETN, NHNO, KNO, NaClO) through fingerprints from one surface to another. First, the extent of adhesion of explosive residues from different surfaces to the bare finger, nitrile and latex gloves was studied. Read More

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November 2018
2 Reads

Anterior communicating artery division in the endoscopic endonasal translamina terminalis approach to the third ventricle: an anatomical feasibility study.

Acta Neurochir (Wien) 2018 Nov 14. Epub 2018 Nov 14.

Department of Neurosurgery, Weill Cornell Medical College, New York-Presbyterian Hospital, 525 East 68th St., Box #99, New York, NY, 10065, USA.

Background: Endonasal endoscopic approaches (EEA) to the third ventricle are well described but generally use an infrachiasmatic route since the suprachiasmatic translamina terminalis corridor is blocked by the anterior communicating artery (AComA). The bifrontal basal interhemispheric translamina terminalis approach has been facilitated with transection of the AComA. The aim of the study is to describe the anatomical feasibility and limitations of the EEA translamina terminalis approach to the third ventricle augmented with AComA surgical ligation. Read More

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November 2018
1.790 Impact Factor

A cysteine protease from the latex of Ficus benjamina has in vitro anthelmintic activity against Haemonchus contortus.

Rev Bras Parasitol Vet 2018 Oct-Dec;27(4):473-480. Epub 2018 Nov 8.

Laboratório de Controle de Parasitos, Departamento de Patologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão - UFMA, São Luís, MA, Brasil.

Haemonchus contortus is a gastrointestinal nematode that is responsible for high mortality rates in ruminant herds. The resistance of nematodes to synthetic anthelmintics is widespread and requires a continuous search for new bioactive molecules, such as proteins. The objective of this study was to evaluate the anthelmintic potential of a protease purified from the latex of Ficus benjamina against H. Read More

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November 2018
4 Reads

Flexible SIS/HKUST-1 Mixed Matrix Composites as Protective Barriers against Chemical Warfare Agent Simulants.

ACS Appl Mater Interfaces 2018 Nov 30. Epub 2018 Nov 30.

Edgewood Chemical Biological Center , 8198 Blackhawk Road , Aberdeen Proving Ground , Maryland 21010 , United States.

We fabricated and demonstrated, for the first time, metal-organic framework (MOF), polymer mixed-matrix composites (MMCs) as effective, low burden barriers against chemical warfare agent (CWA) simulants. We incorporated the MOF HKUST-1 into elastomeric triblock copolymers of polystyrene- block-polyisoprene- block-polystyrene (SIS) for use as semipermeable barrier against the CWA simulant 2-chloroethyl ethyl sulfide (CEES). MMCs containing up to 50 wt % HKUST-1 were cast and evaluated for CEES permeation, moisture vapor transport rate (MVTR), and mechanical properties, such as elastic modulus and percent elongation. Read More

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November 2018
4 Reads

Three-Dimensional Reservoir-Based Dielectrophoresis (rDEP) for Enhanced Particle Enrichment.

Micromachines (Basel) 2018 Mar 10;9(3). Epub 2018 Mar 10.

Department of Mechanical Engineering, Clemson University, Clemson, SC 29634-0921, USA.

Selective enrichment of target species is crucial for a wide variety of engineering systems for improved performance of subsequent processes. Dielectrophoresis (DEP) is a powerful electrokinetic method that can be used to focus, trap, concentrate, and separate a variety of species in a label-free manner. The commonly employed methods for DEP suffer from limitations such as electrode fouling and high susceptibility to Joule heating effects. Read More

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March 2018
1 Read

Transmission of Staphylococcus aureus from dry surface biofilm (DSB) via different types of gloves.

Infect Control Hosp Epidemiol 2018 Nov 13:1-5. Epub 2018 Nov 13.

1Surgical Infection Research Group, Faculty of Medicine and Health Sciences (FMHS),Macquarie University,Sydney,New South Wales,Australia.

Background: Pathogens can survive for extended periods when incorporated into biofilm on dry hospital surfaces (ie, dry-surface biofilm, DSB). Bacteria within biofilm are protected from desiccation and have increased tolerance to cleaning agents and disinfectants.

Objective: We hypothesized that gloved hands of healthcare personnel (HCP) become contaminated with DSB bacteria and hence may transmit bacteria associated with healthcare-associated infections (HAIs). Read More

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November 2018
2 Reads

A novel REBOA system: prototype and proof of concept

Can J Surg 2018 12;61(6):S188-S194

From the Royal Canadian Medical Service and the Department of Surgery, Western University, London, Ont.

Background: Lower torso hemorrhage is a significant cause of death from injuries in combat. Resuscitative endovascular balloon occlusion of the aorta (REBOA) has been used to rescue patients successfully in the hospital setting, but its prehospital use is controversial. We designed a device that would be easy to use, safer in injured vessels, migration-resistant and amenable to a prehospital environment. Read More

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December 2018
5 Reads

Granulocyte macrophage-colony stimulating factor: A key modulator of renal mononuclear phagocyte plasticity.

Immunobiology 2018 Nov 2. Epub 2018 Nov 2.

The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom.

Macrophage-colony stimulating factor (M-CSF) and granulocyte macrophage-colony stimulating factor (GM-CSF) play key roles in the differentiation of macrophages and dendritic cells (DCs). We examined the effect of treatment with M-CSF-containing macrophage medium or GM-CSF-containing DC medium upon the phenotype of murine bone marrow-derived macrophages and DCs. Culture of macrophages for 5 days in DC medium reduced F4/80 expression and increased CD11c expression with cells effectively stimulating T cell proliferation in a mixed lymphocyte reaction. Read More

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November 2018

Allergy alerts - the incidence of parentally reported allergies in children presenting for general anaesthesia.

Paediatr Anaesth 2018 Nov 10. Epub 2018 Nov 10.

Department of Anaesthesia and Pain Management, Perth Children's Hospital, Perth, Australia.

Background And Aim: Pediatric patients increasingly report allergies, including allergies to food and medications. We sought to determine the incidence and, nature of parent-reported allergies in children presenting for surgery and its significance for anaesthetists.

Method: We prospectively collected data on admissions through our surgical admission unit over a two-month period at a pediatric tertiary care teaching hospital. Read More

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November 2018
5 Reads

Lysosome and proteasome pathways are distributed in laticifers of Euphorbia helioscopia L.

Physiol Plant 2018 Nov 9. Epub 2018 Nov 9.

Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education, Xi'an, 710069, China.

At present, the lysosome pathway (LP) and proteasome pathway (PP) are known as major clearance systems in eukaryotic cells. The laticifer, a secretory tissue, degrades some cytoplasm during development. In this study, we investigated the distribution of LP and PP in non-articulated laticifers of Euphorbia helioscopia L. Read More

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November 2018
1 Read

[A variant of the modification of the rhinosurgical intervention with the use of the hemostatic glue].

Authors:
A D Morozov

Vestn Otorinolaringol 2018 ;83(5):65-67

Department and Clinic of Otolaryngology S.M. Kirov Militray Medical Academy, Ministry of Defence of the Russian Federation, Sankt-Peterburg, Russia.

The objective of the present study was to evaluate the dynamics of the nasal breathing function and the quality of life in the patients following septoplastic surgery with the use of the classical method in comparison with the application of the latex tissue glue. The study included 58 patients presenting with diagnosis of deflected septum of the nose and vasomotor rhinitis. The following methods were employed for the purpose: anterior active rhinomanometry, evaluation of the transport function of the nasal cavity, and the questionnaire study for the determination of the patients' quality of life. Read More

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January 2018
4 Reads

Pneumococcal carriage among sickle cell disease patients in Accra, Ghana: Risk factors, serotypes and antibiotic resistance.

PLoS One 2018 8;13(11):e0206728. Epub 2018 Nov 8.

Dept. of Medical Microbiology, School of Biomedical and Allied Health Sciences University of Ghana, Accra, Ghana.

Background: Pneumococcal carriage is the precursor for development of pneumococcal disease, and is also responsible for transmission of the organism from person-to-person. Individuals with Sickle Cell Disease (SCD) are more likely to develop invasive disease with S. pneumoniae compared to their healthy counterparts and the presentation of disease in the former is usually abrupt and severe. Read More

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November 2018
8 Reads

Prevalence and quantification of contamination of knitted cotton outer gloves during hip and knee arthroplasty surgery.

Arch Orthop Trauma Surg 2018 Nov 7. Epub 2018 Nov 7.

Division of Orthopaedics and Traumatology, Cantonal Hospital Winterthur, Brauerstrasse 15, P.O. Box 834, 8401, Winterthur, Switzerland.

Introduction: Knitted cotton outer gloves offer protection against surgical glove perforation and provide improved grip on instruments. These gloves absorb blood and other fluids during surgery, and may therefore also accumulate contaminating bacteria. To date, there is no published data on microbial contamination of such gloves during surgery. Read More

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November 2018
5 Reads

Water-Borne Perovskite Quantum Dot-Loaded, Polystyrene Latex Ink.

Front Chem 2018 23;6:453. Epub 2018 Oct 23.

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry Jilin University, Changchun, China.

Highly lipophilic nanocrystals (NCs) of cesium lead halides were successfully embedded in polystyrene (PS) particles by deliberately controlling the swelling of the PS particles in the mixtures of good and bad organic solvents. The resulting composite particles were readily transferred into water via simple stepwise solvent exchange, which yielded water-borne perovskite NC-based inks with outstanding structural and chemical stability in aqueous media. Minimal change in the photoluminescence (PL) of the NCs loaded in the PS particles was visible after 1 month of incubation of the composite particles in water in a broad pH range from 1 to 14, which could otherwise be hardly realized. Read More

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October 2018
2 Reads

Phytochemical Molluscicides and Schistosomiasis: What We Know and What We Still Need to Learn.

Vet Sci 2018 Nov 6;5(4). Epub 2018 Nov 6.

Laboratório de Avaliação e Promoção e Saúde Ambiental, Oswaldo Cruz Institute, Rio de Janeiro 21040-360, Brazil.

Worldwide schistosomiasis remains a serious public health problem with approximately 67 million people infected and 200 million at risk of infection from inhabiting or transiting endemically active regions. Africa, South America, the Caribbean, and the Middle East are the main transmission regions of . The fight against transmission through the use of molluscicides is not recent and has been advocated as the only activity with the possibility of interruption of transmission in small, epidemiologically active outbreaks. Read More

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November 2018
2 Reads

Obstructive Apnea Causes Microvascular Perfusion Mal-Distribution in the Lungs of Rats.

Am J Physiol Regul Integr Comp Physiol 2018 Nov 7. Epub 2018 Nov 7.

Population Health Sciences, University of Wisconsin - Madison.

Obstructive sleep apnea (OSA) is associated with significant cardiovascular consequences, including pulmonary hypertension. Yet, little is known about its effects on pulmonary microvascular perfusion. To investigate this, we clamped the tracheal cannulas of anesthetized, spontaneously breathing rats to simulate obstructive apnea. Read More

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November 2018
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Electromyostimulation with blood flow restriction enhances activation of mTOR and MAPK signaling pathways in rat gastrocnemius muscles.

Appl Physiol Nutr Metab 2018 Nov 6. Epub 2018 Nov 6.

Juntendo University School of Health and Sports Science Graduate School of Health and Sports Science, 38298, Inzai, Chiba, Japan ;

Neuromuscular electrical stimulation (NMES) combined with blood flow restriction (BFR) induces muscle hypertrophy. However, cellular mechanisms underlying the muscle hypertrophy induced by NMES combined with BFR remain unclear. We tested the hypothesis that NMES combined with BFR would enhance the mechanistic target of rapamycin (mTOR) and mitogen activated protein kinase (MAPK) signaling pathways. Read More

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November 2018
2 Reads

Discovery of a Streptococcus pneumoniae serotype 33F capsular polysaccharide locus that lacks wcjE and contains a wcyO pseudogene.

PLoS One 2018 5;13(11):e0206622. Epub 2018 Nov 5.

Pneumococcal Research, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, VIC, Australia.

As part of large on-going vaccine impact studies in Fiji and Mongolia, we identified 25/2750 (0.9%) of nasopharyngeal swabs by microarray that were positive for Streptococcus pneumoniae contained pneumococci with a divergent 33F capsular polysaccharide locus (designated '33F-1'). We investigated the 33F-1 capsular polysaccharide locus to better understand the genetic variation and its potential impact on serotyping results. Read More

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November 2018
5 Reads

Light-Induced Aggregation and Disaggregation of Stimuli-Responsive Latex Particles Depending on Spiropyran Concentration: Kinetics of Photochromism and Investigation of Reversible Photopatterning.

Langmuir 2018 Nov 5;34(46):13910-13923. Epub 2018 Nov 5.

Department of Polymer Engineering , Sahand University of Technology , P.O. Box: 51335-1996, Tabriz 51368 , Iran.

Light-controlling the physical and chemical properties of smart polymers by using photochromic compounds has been an interesting research subject. Incorporation of spiropyran (SP) on the surface of particles can induce photoswitchable aggregation/disaggregation to stimuli-responsive colloids. Herein, we developed a novel class of stimuli-responsive latex particles bearing SP with different contents (0, 0. Read More

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November 2018
3 Reads