1,085,515 results match your criteria Free Radical Biology & Medicine[Journal]


Hypercortisolism in Newly Diagnosed Type 2 Diabetes: A Prospective Study of 384 Newly Diagnosed Patients.

Horm Metab Res 2018 Dec 6. Epub 2018 Dec 6.

Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark.

Cross-sectional studies in small and selected populations report a high prevalence of hypercortisolism in patients with type 2 diabetes (T2D), which could have therapeutic implications, if confirmed. We therefore estimated the prevalence of hypercortisolism in a large and unselected cohort of recently diagnosed T2D patients. Consecutive patients with recently diagnosed T2D first underwent an overnight dexamethasone (1 mg) suppression test (OD). Read More

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December 2018
1 Read

A label-free impedimetric aptasensor for the detection of Bacillus anthracis spore simulant.

Biosens Bioelectron 2018 Nov 15;126:640-646. Epub 2018 Nov 15.

Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, Italy. Electronic address:

Herein, we report an impedimetric DNA-based aptamer sensor for a single-step detection of B. anthracis spore simulant (B. cereus spore). Read More

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November 2018
2 Reads

Neuroprotective effects of a novel carnosine-hydrazide derivative on hippocampal CA1 damage after transient cerebral ischemia.

Eur J Med Chem 2018 Nov 28;163:207-214. Epub 2018 Nov 28.

Department of Neurosurgery, Kurume University, School of Medicine, Fukuoka, Japan. Electronic address:

Ischemia-reperfusion injuries produce reactive oxygen species that promote the peroxide lipid oxidation process resulting in the production of an endogenic lipid peroxide, 4-hydroxy-trans-2-nonenal (4-HNE), a highly cytotoxic aldehyde that induces cell death. We synthesized a novel 4-HNE scavenger - a carnosine-hydrazide derivative, l-carnosine hydrazide (CNN) - and examined its neuroprotective effect in a model of transient ischemia. PC-12 cells were pre-incubated with various doses (0-50 mmol/L) of CNN for 30 min, followed by incubation with 4-HNE (250 μM). Read More

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November 2018
1 Read

A sensitive biosensing method for detecting of ultra-trace amounts of AFB1 based on "Aptamer/reduced graphene oxide" nano-bio interaction.

Colloids Surf B Biointerfaces 2018 Dec 1;175:98-105. Epub 2018 Dec 1.

Department of Chemistry, Payame Noor University (PNU), P.O. Box: 19395-4697, Tehran, Iran. Electronic address:

A simple, low-cost and sensitive label-free aptasensor assembled with assisting reduced graphene oxide nanosheets as the signal amplifier was fabricated and applied for detecting ultra-low levels of Aflatoxin B1(AFB1) through a nano-bio interaction system. The conditions of different modified glassy carbon electrodes as the base of aptasensor were investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and electrochemical impedance spectroscopy (EIS). The performance of the fabricated aptasensor was evaluated by FESEM, HRTEM and AFM images. Read More

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December 2018

Phyllodes tumors of the breast. The treatment results for 340 patients from a single cancer centre.

Breast 2018 Nov 26;43:85-90. Epub 2018 Nov 26.

Department of Surgical Oncology, Centre of Oncology, Maria Sklodowska-Curie Memorial Institute, Cracow Branch, ul. Garncarska 11, 31-115 Cracow, Poland.

Purpose: The primary treatment of choice for patients with phyllodes tumor of the breast (PTB) is surgery. Two major problems regarding the treatment of such patients remain unclear: what is the appropriate surgical margin and what role is played by adjuvant radiotherapy (ART).

Methods: The study provides a retrospective review of all patients with PTB treated between 1952 and 2013 at a single institute. Read More

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November 2018
2 Reads

Proteomic analysis of olfactory bulb suggests CACNA1E as a promoter of CREB signaling in microbiota-induced depression.

J Proteomics 2018 Dec 3. Epub 2018 Dec 3.

Institute of Neuroscience and the Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing 400016, China; Chongqing Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital, Chongqing Medical University, Chongqing 400016, China. Electronic address:

Major depressive disorders impact approximately 17% of the population worldwide, whose high morbidity and considerable adversity have resulted in enormous social and economic burden. In addition, clinically depressed patients often show reduced volume of olfactory bulb (OB) and decreased olfactory sensitivity. Although mounting evidence conveyed that the gut microbiota may implicate the pathophysiology of major depressive disorder (MDD) via the microbe-gut-brain axis, knowledge about its distinctive molecular mechanism is rudimentary. Read More

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December 2018
2 Reads

Loss of enzyme activity in mutated B4GALNT1 gene products in patients with hereditary spastic paraplegia results in relatively mild neurological disorders: Similarity with phenotypes of B4galnt1 knockout mice.

Neuroscience 2018 Dec 3. Epub 2018 Dec 3.

Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai 487-8501, Japan; Department of Biochemistry II, Nagoya University Graduate School of Medicine, Nagoya 466-0065, Japan. Electronic address:

B4GALNT1 is an enzyme essential for the synthesis of complex gangliosides, whose absence leads to progressive neurodegeneration with aging in mice. Recently, eleven cases of hereditary spastic paraplegia with mutation in the coding region of B4GALNT1 were reported. However, changes in the enzymatic activity of their products have never been studied. Read More

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December 2018
2 Reads

The unique spatial-temporal treatment failure patterns of adjuvant gefitinib therapy: A post-hoc analysis of the ADJUVANT trial (CTONG 1104).

J Thorac Oncol 2018 Dec 3. Epub 2018 Dec 3.

Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China. Electronic address:

Introduction: Adjuvant gefitinib therapy prolonged disease-free survival (DFS) in patients with resected early-stage epidermal growth factor receptor (EGFR)-mutation positive non-small cell lung cancer (NSCLC) in the ADJUVANT study (CTONG 1104). However, treatment failure patterns after gefitinib therapy are less well characterized.

Methods: Overall, 222 stage N1-N2, EGFR-mutant NSCLC patients received gefitinib or vinorelbine plus cisplatin (VP) treatment. Read More

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December 2018
4 Reads

Preparation and optimization of poly (lactic acid) nanoparticles loaded with fisetin to improve anti-cancer therapy.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Department of Pharmaceutics, School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China. Electronic address:

Fisetin is a natural flavonoid with promising antitumor activity, whereas its clinical application is limited by its hydrophobic property. In this study, we aimed to load fisetin into poly(lactic acid) (PLA) nanoparticles to increase fisetin's solubility and therapeutic efficacy. Based on spontaneous emulsification solvent diffusion (SESD) method, the formulation of PLA nanoparticles was optimized by two successive experimental designs. Read More

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December 2018
2 Reads

Mechanically magnified chitosan-based hydrogel as tissue adhesive and antimicrobial candidate.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Department of Biochemistry, Institute of Science, Banaras Hindu University, Varanasi 221005, UP, India.

The present article reports the development of chitosan (CS) based hydrogel series by varying the concentration of cross-linking agent i.e. N,N'-methylenebisacrylamide (MBA) (0. Read More

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December 2018

Tuning the ring strain effect in acridine derivatives on binding affinity with G-quadruplex-DNA: A computational and experimental study.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Computation and Simulation Unit (Analytical and Environmental Science Division and Centralized Instrument Facility), CSIR-Central Salt & Marine Chemicals Research Institute, India; Academy of Scientific and Innovative Research, CSIR-CSMCRI, Bhavnagar, Gujarat 364 002, India. Electronic address:

Search for inhibitors to stabilize the telomeric G-quadruplex in order to deter telomerase activity is an active area of research. Inhibitors play an important role to initiate the tumor cell mortalization process. This work reports for the first time of acridine derivative with four membered ammonium rings at the side chain to surpass the binding ability against BRACO-19 with G-quadruplex-DNA. Read More

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December 2018
2 Reads

In vitro fermentation of O‑acetyl‑arabinoxylan from bamboo shavings by human colonic microbiota.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Institute of Agricultural Engineering, Fujian Academy of Agricultural Sciences, Fuzhou 350003, PR China.

BSH-1 is an O‑acetyl-arabinoxylan obtained from bamboo shavings. This study investigated its fermentation behavior by human colonic bacteria in vitro. Results showed that BSH-1 remarkably modulated the composition of colonic microbiota, mainly by increasing the growth of potential beneficial genera (i. Read More

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December 2018
3 Reads

Oxidation of cystatin imparted by riboflavin generated free radicals: Spectral analysis.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Department of Biochemistry, Faculty of life sciences, Aligarh Muslim University, Aligarh, UP 202002, India. Electronic address:

Thiol Protease inhibitors (cystatins) are endogenous natural inhibitors of cysteine proteases. They are present in all mammalians cells and body fluids. Cystatin are allocated into three major families. Read More

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December 2018
3 Reads

Pilot-scale isolation and characterization of extracellular polymeric substances (EPS) from cell-free medium of Spirulina sp. LEB-18 cultures under outdoor conditions.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

College of Pharmacy, Federal University of Bahia, Salvador, Brazil.

This objective of this work was to monitor the EPS production during the growth of Spirulina sp. LEB-18, evaluate the productivity and to characterize the exopolymers obtained on pilot-scale under outdoor conditions. The production of crude EPS occurred in all phases of biomass growth and was approximately ten folds higher than that biomass concentration of Spirulina sp. Read More

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December 2018

Graft copolymeric flocculant using functionalized starch towards treatment of blast furnace effluent.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad 826004, India. Electronic address:

Herein, a novel binary graft copolymeric flocculant [St-g-(PAAm-co-PMETAC)] has been developed using starch, polyacrylamide (PAAm) and poly (2-methacryloyloxy ethyl trimethyl ammonium chloride) (PMETAC). The copolymer has been synthesised by grafting of PAAm and PMETAC chains on starch backbone using free radical polymerization. FTIR and H NMR spectral analyses have been used for structural confirmation of developed copolymer. Read More

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December 2018
2 Reads

Development of methotrexate loaded fucoidan/chitosan nanoparticles with anti-inflammatory potential and enhanced skin permeation.

Int J Biol Macromol 2018 Dec 3. Epub 2018 Dec 3.

LAQV-REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Portugal, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.

In this study, fucoidan/chitosan nanoparticles were developed for the topical delivery of methotrexate towards the treatment of skin-related inflammatory diseases. Based on the fucoidan/chitosan (F/C) weight ratio, three different nanoparticles (1F/1C; 3F/1C; 5F/1C) were produced and characterized. Methotrexate was loaded in these polymeric nanoparticles achieving a drug loading of ca. Read More

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December 2018
2 Reads

Tools and strategies for constructing cell-free enzyme pathways.

Biotechnol Adv 2018 Dec 3. Epub 2018 Dec 3.

Department of Molecular Sciences, Macquarie University, Sydney, Australia; Biomolecular Discovery and Design Research Centre, Macquarie University, Sydney, Australia. Electronic address:

Single enzyme systems or engineered microbial hosts have been used for decades but the notion of assembling multiple enzymes into cell-free synthetic pathways is a relatively new development. The extensive possibilities that stem from this synthetic concept makes it a fast growing and potentially high impact field for biomanufacturing fine and platform chemicals, pharmaceuticals and biofuels. However, the translation of individual single enzymatic reactions into cell-free multi-enzyme pathways is not trivial. Read More

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December 2018
1 Read

Engineered Viral RNA Decay Intermediates to Assess XRN1-mediated decay.

Methods 2018 Dec 3. Epub 2018 Dec 3.

Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80525, United States; Program in Cell & Molecular Biology, Colorado State University, Fort Collins, CO 80525, United States. Electronic address:

Both RNA synthesis and decay must be balanced within a cell to achieve proper gene expression. Additionally, modulation of RNA decay specifically offers the cell an opportunity to rapidly reshape the transcriptome in response to specific stimuli or cues. Therefore, it is critical to understand the underlying mechanisms through which RNA decay contribute to gene expression homeostasis. Read More

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December 2018
1 Read

Hydrogels with prolonged release of therapeutic antibody: Block junction chemistry modification of 'ABA' copolymers provides superior anticancer efficacy.

J Control Release 2018 Dec 3. Epub 2018 Dec 3.

31 Biopolis Way, The Nanos, 138669, Singapore. Electronic address:

In this study, we report a new series of vitamin E-functionalized 'ABA' triblock copolymers with carbamate block junction, which can form hydrogen-bonds. These polymers were synthesized via solvent- and catalyst-free nucleophilic addition between PEG-diamine and vitamin E-functionalized cyclic carbonate. The catalyst-free synthesis enabled an easy purification step and recycling of excess monomers. Read More

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December 2018
2 Reads

Activation of mitochondrial aldehyde dehydrogenase (ALDH2) by ALDA-1 reduces both the acquisition and maintenance of ethanol intake in rats: A dual mechanism?

Neuropharmacology 2018 Dec 3. Epub 2018 Dec 3.

Program of Molecular and Clinical Pharmacology, ICBM, Faculty of Medicine, University of Chile, Santiago, Chile.

A number of pre-clinical studies have shown that brain-generated acetaldehyde, the first metabolite of ethanol, exerts reinforcing effects that promote the acquisition of ethanol intake, while chronic intake maintenance appears to be mediated by alcohol-induced brain neuroinflammation/oxidative stress. Recently, it was described that N-(1,3-benzodioxol-5-ylmethyl)-2,6-dichlorobenzamide (ALDA-1) activates aldehyde dehydrogenase-2 (ALDH2), enzyme that catalyzes the oxidation of ethanol-derived acetaldehyde to acetate. The aim of this study was to determine the effects of ALDA-1 on both the acquisition and the maintenance of alcohol intake in alcohol-preferring UChB rats. Read More

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December 2018

Racial Disparities in Incidence of Young-onset Colorectal Cancer and Patient Survival.

Gastroenterology 2018 Dec 3. Epub 2018 Dec 3.

Department of Epidemiology and Center for Gastrointestinal Biology and Disease, University of North Carolina at Chapel Hill, Chapel Hill, NC.

Background & Aims: Increasing rates of young-onset colorectal cancer (CRC) have attracted substantial research and media attention, but we know little about racial disparities among younger adults with CRC. We examined racial disparities in young-onset CRC by comparing CRC incidence and relative survival among younger (age <50 years) adults, in 2 time periods.

Methods: Using data from the Surveillance, Epidemiology, and End Results program of cancer registries, we estimated CRC incidence rates (per 100,000 persons ages 20 - 54 years) from 1992 through 2014, for different time periods (1992-1996 vs 2010-2014) and races (white vs black). Read More

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December 2018
4 Reads

Healthcare Providers' Advice on Lifestyle Modification in the US Population: Results from the National Health and Nutrition Examination Survey 2011-2016.

Am J Med 2018 Dec 3. Epub 2018 Dec 3.

Department of Epidemiology, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15/1, 1090 Vienna, Austria; Department of Cancer Epidemiology and Prevention Research, Alberta Health Services, Holy Cross Centre, 2210-2nd Street SW, Box ACB, Calgary, AB, T2S 3C3, Canada; Preventive Oncology & Community Health Sciences, Cumming School of Medicine, University of Calgary, Hospital Drive NW, Calgary, Alberta, Canada. Electronic address:

Objective: Healthcare providers are encouraged to prescribe lifestyle modifications for preventing and managing obesity and associated chronic conditions. However, the pattern of lifestyle advice provision is unknown. We investigate the prevalence of advised lifestyle modification according to weight status and chronic conditions in a US nationally representative sample. Read More

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December 2018

Oxidative Coupling of Carbazoles: A Substituent-Governed Regioselectivity Profile.

J Org Chem 2018 Dec 6. Epub 2018 Dec 6.

Oxidative C-C coupling of carbazoles possessing various substituents are demonstrated, in presence of organic (metal-free) recyclable oxidants, such as, DDQ or CA/H+ for accessing bicarbazole regioisomers. Differently substituted carbazoles are examined to showcase regioselectivity discrimination (3,3'- versus 1,3'-bicarbazoles), and preferences based on sterics and electronics in oxidative coupling. Finally, a mechanism that involves carbazole radical cation has been traced (evidenced) and proposed based on the UV-vis-NIR absorption and EPR spectroscopy results. Read More

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December 2018

Dual combination therapy versus long-acting bronchodilators alone for chronic obstructive pulmonary disease (COPD): a systematic review and network meta-analysis.

Cochrane Database Syst Rev 2018 Dec 3;12:CD012620. Epub 2018 Dec 3.

Division of Pulmonary and Critical Care Medicine, University of Missouri, Columbia, MO, USA.

Background: Long-acting bronchodilators such as long-acting β-agonist (LABA), long-acting muscarinic antagonist (LAMA), and LABA/inhaled corticosteroid (ICS) combinations have been used in people with moderate to severe chronic obstructive pulmonary disease (COPD) to control symptoms such as dyspnoea and cough, and prevent exacerbations. A number of LABA/LAMA combinations are now available for clinical use in COPD. However, it is not clear which group of above mentioned inhalers is most effective or if any specific formulation works better than the others within the same group or class. Read More

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December 2018
2 Reads

Pharmacological interventions for acute hepatitis C infection.

Cochrane Database Syst Rev 2018 Dec 3;12:CD011644. Epub 2018 Dec 3.

Sheila Sherlock Liver Centre, Royal Free Hospital and the UCL Institute of Liver and Digestive Health, London, UK.

Background: Hepatitis C virus (HCV) is a single-stranded RNA (ribonucleic acid) virus that has the potential to cause inflammation of the liver. The traditional definition of acute HCV infection is the first six months following infection with the virus. Another commonly used definition of acute HCV infection is the absence of HCV antibody and subsequent seroconversion (presence of HCV antibody in a person who was previously negative for HCV antibody). Read More

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December 2018
1 Read

Acute effects of zinc and insulin on arcuate anorexigenic Proopiomelanocortin (POMC) neurons.

Br J Pharmacol 2018 Dec 6. Epub 2018 Dec 6.

Division of Hypothalamic Research, the University of Texas Southwestern Medical Center at Dallas, Dallas, Texas, USA.

Background And Purpose: Acute insulin administration results in a hyperpolarization and concomitant decrease of firing rate in a subpopulation of arcuate Proopiomelanocortin (POMC) and Neuropeptide Y/Agouti-related peptide (NPY/AgRP) cells. This rapid effect on cellular activity has been implicated as a cellular correlate of insulin effects on energy balance and glucose homeostasis. Recent evidence suggests that zinc in mammalian insulin formulations is required for the insulin-induced inhibition of arcuate POMC neurons, while guinea-pig insulin, which fails to bind zinc, activates POMC neurons in mice. Read More

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December 2018
2 Reads

Mandible reconstruction with patient-specific implants: Case report of five consecutive patients.

Int J Oral Maxillofac Implants 2018 Dec 5. Epub 2018 Dec 5.

The purpose of this case report was to assess whether patient-specific implants (PSI: Xillocs) and soft tissue flaps contribute in reconstructing large mandibular defects. Five patients with a medical situation and history not suitable for free microvascular bone flaps were operated with PSI and evaluated. The mean follow-up time was 12 months. Read More

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December 2018
1 Read

Micro-ATR FTIR, SEM-EDS and X-ray micro-CT: an innovative multi-technique approach to investigate bone affected by peri-implantitis.

Int J Oral Maxillofac Implants 2018 Dec 5. Epub 2018 Dec 5.

Purpose: The aim of this work was to prove the synergic complementarity of attenuated total reflection Fourier transform infrared microspectroscopy (micro-ATR FTIR), scanning electron microscopy (SEM) coupled with energy-dispersive x-ray spectroscopy (EDS) and x-ray computed microtomography (micro-CT) by studying implant samples with bone affected by peri-implantitis.

Materials And Methods: Six samples of implanted bone affected by peri-implantitis and one control healthy bone were analyzed. Thick bone sections included in epoxy-resin and removed implants were analyzed by micro-ATR FTIR, SEM-EDS, and micro-CT. Read More

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December 2018
1 Read

A novel approach to stabilize fetal cell-free DNA fraction in maternal blood samples for extended period of time.

PLoS One 2018 6;13(12):e0208508. Epub 2018 Dec 6.

Department of Research and Development, CFGenome Omaha NE, United States of America.

This study was undertaken to evaluate a novel method for stabilizing and preserving the original proportion of cell-free fetal DNA (cffDNA) in maternal blood for extended periods of time without using crosslinking agents, such as formaldehyde, which compromise DNA integrity and extraction efficiency. Blood was drawn from pregnant donors into K3EDTA and Blood Exo DNA ProTeck® (ProTeck) tubes. Blood drawn into both tubes were aliquoted and stored at three different temperatures. Read More

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December 2018

Phosphate effect on filipin production and morphological differentiation in Streptomyces filipinensis and the role of the PhoP transcription factor.

PLoS One 2018 6;13(12):e0208278. Epub 2018 Dec 6.

Area de Microbiología, Departamento de Biología Molecular, Universidad de León, León, Spain.

The biosynthesis of the antifungal filipin in Streptomyces filipinensis is very sensitive to phosphate regulation. Concentrations as low as 2.5 mM block filipin production. Read More

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December 2018

Global analysis of erythroid cells redox status reveals the involvement of Prdx1 and Prdx2 in the severity of beta thalassemia.

PLoS One 2018 6;13(12):e0208316. Epub 2018 Dec 6.

Universidade Federal de São Carlos (UFSCar), Departamento de Genética e Evolução, São Carlos, Brazil.

β-thalassemia is a worldwide distributed monogenic red cell disorder, characterized by an absent or reduced beta globin chain synthesis. The unbalance of alpha-gamma chain and the presence of pathological free iron promote severe oxidative damage, playing crucial a role in erythrocyte hemolysis, exacerbating ineffective erythropoiesis and decreasing the lifespan of red blood cells (RBC). Catalase, glutathione peroxidase and peroxiredoxins act together to protect RBCs from hydrogen peroxide insult. Read More

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December 2018

A randomized controlled trial to evaluate performance of pigs raised in antibiotic-free or conventional production systems following challenge with porcine reproductive and respiratory syndrome virus.

PLoS One 2018 6;13(12):e0208430. Epub 2018 Dec 6.

Swine Technical Services, Zoetis, Parsippany, New Jersey, United States of America.

The trial objective was to compare the performance and animal health parameters of pigs raised according to one of 3 antibiotic (AB) protocols: standard AB medication consisting of mass treatment on days 4 and 21 and judicious AB therapy given therapeutically thereafter as group medication in water and feed or by individual injection (group T1, N = 702); modified AB medication identical to group T1 but with mass treatment only on day 4 and without subsequent therapeutic feed medication (group T2, N = 675); or an antibiotic-free (ABF) regimen (group T3, N = 702). All pigs were vaccinated with a modified-live porcine reproductive and respiratory syndrome virus (PRRSV) vaccine 3 days after weaning. Using a seeder pig model to mimic endemic field infection dynamics, pigs were contact-challenged with virulent PRRSV lineage 1 strain 174 four weeks after vaccination. Read More

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December 2018

Microbiota control acute arterial inflammation and neointimal hyperplasia development after arterial injury.

PLoS One 2018 6;13(12):e0208426. Epub 2018 Dec 6.

Division of Vascular Surgery, Northwestern University, Chicago, IL, United States of America.

Background: The microbiome has a functional role in a number of inflammatory processes and disease states. While neointimal hyperplasia development has been linked to inflammation, a direct role of the microbiota in neointimal hyperplasia has not yet been established. Germ-free (GF) mice are an invaluable model for studying causative links between commensal organisms and the host. Read More

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December 2018
3 Reads

A study for multiscale information transfer measures based on conditional mutual information.

PLoS One 2018 6;13(12):e0208423. Epub 2018 Dec 6.

Department of Mathematics, College of Science, Beijing University of Chemical Technology, Beijing, China.

As the big data science develops, efficient methods are demanded for various data analysis. Granger causality provides the prime model for quantifying causal interactions. However, this theoretic model does not meet the requirement for real-world data analysis, because real-world time series are diverse whose models are usually unknown. Read More

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December 2018
2 Reads

Determination of the minimum protective dose of a glycoprotein-G-deficient infectious laryngotracheitis virus vaccine delivered via eye-drop to week-old chickens.

PLoS One 2018 6;13(12):e0207611. Epub 2018 Dec 6.

Asia-Pacific Centre for Animal Health, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, Victoria, Australia.

Infectious laryngotracheitis (ILT) is an upper respiratory tract disease of chickens that is caused by infectious laryngotracheitis virus (ILTV), an alphaherpesvirus. This disease causes significant economic loses in poultry industries worldwide. Despite widespread use of commercial live attenuated vaccines, many poultry industries continue to experience outbreaks of disease caused by ILTV. Read More

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December 2018
1 Read

Plasma donor-derived cell-free DNA kinetics after kidney transplantation using a single tube multiplex PCR assay.

PLoS One 2018 6;13(12):e0208207. Epub 2018 Dec 6.

Laboratory of Experimental Medicine and Pediatrics, University of Antwerp, Antwerp, Belgium.

Background: After transplantation, cell-free DNA derived from the donor organ (ddcfDNA) can be detected in the recipient's circulation. We aimed to quantify ddcfDNA levels in plasma of kidney transplant recipients thereby investigating the kinetics of this biomarker after transplantation and determining biological variables that influence ddcfDNA kinetics in stable and non-stable patients.

Materials And Methods: From 107 kidney transplant recipients, plasma samples were collected longitudinally after transplantation (day 1-3 months) within a multicenter set-up. Read More

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December 2018

Molecular basis for the increased affinity of an RNA recognition motif with re-engineered specificity: A molecular dynamics and enhanced sampling simulations study.

PLoS Comput Biol 2018 Dec 6;14(12):e1006642. Epub 2018 Dec 6.

Computational Biomedicine, Institute for Advanced Simulation IAS-5 and Institute of Neuroscience and Medicine INM-9, Forschungszentrum Jülich, Jülich, Germany.

The RNA recognition motif (RRM) is the most common RNA binding domain across eukaryotic proteins. It is therefore of great value to engineer its specificity to target RNAs of arbitrary sequence. This was recently achieved for the RRM in Rbfox protein, where four mutations R118D, E147R, N151S, and E152T were designed to target the precursor to the oncogenic miRNA 21. Read More

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December 2018
1 Read

Current treatment of the inguinal hernia - the role of the totally extraperitoneal (TEP) hernia repair.

Folia Med Cracov 2018 ;58(3):103-114

Department of Experimental and Clinical Surgery, Jagiellonian University Medical College Kraków, Poland.

Inguinal hernia repairs are one of the most common procedures performed in general surgical departments. Approximately 20 million hernia repairs are performed annually all over the world. According to the EHS guidelines, the recommended treatment methods of the inguinal hernia are tension-free techniques: the Lichtenstein open hernia repair and the laparoscopic transabdominal preperitoneal (TAPP) and totally extraperitoneal (TEP) methods. Read More

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January 2018

Exposure to Secondhand Smoke Among Nonsmokers - United States, 1988-2014.

MMWR Morb Mortal Wkly Rep 2018 Dec 7;67(48):1342-1346. Epub 2018 Dec 7.

Exposure to secondhand smoke from burning tobacco products can cause sudden infant death syndrome, respiratory infections, ear infections, and asthma attacks in infants and children, and coronary heart disease, stroke, and lung cancer in adult nonsmokers (1). There is no risk-free level of secondhand smoke exposure (2). CDC analyzed questionnaire and laboratory data from the National Health and Nutrition Examination Survey (NHANES) to assess patterns of secondhand smoke exposure among U. Read More

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December 2018
2 Reads

Ginzburg-Landau theory for the magnetic and structural transitions in La (Ca Sr ) MnO.

J Phys Condens Matter 2019 Jan;31(2):025804

Laboratorio de Materiales Nanoestructurados, Facultad de Ciencias, Universidad Nacional de Ingeniería, Avenida Túpac Amaru 210, Rímac 025, Lima, Peru.

We present a phenomenological theory for the ferromagnetic transition temperature, the magnetic susceptibility at high temperatures, and the structural distortion in the La[Formula: see text](Ca[Formula: see text]Sr[Formula: see text])[Formula: see text]MnO[Formula: see text] system. We construct a Ginzburg-Landau free energy that describes the magnetic and the structural transitions, and a competition between them. The parameters of the magnetic part of the free energy are derived from a mean-field solution of the magnetic interaction for arbitrary angular momentum. Read More

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January 2019
1 Read

Aggressive Angiomyxoma: A Rare Tumor of Male Pelvic Cavity.

Acta Med Port 2018 Nov 30;31(11):693-696. Epub 2018 Nov 30.

Department of General Surgery. Ankara University School of Medicine. Ankara. Turkey.

Aggressive angiomyxoma is an uncommon, benign, slow-growing, and locally infiltrative soft tissue neoplasm which is located primarily in the genital region and pelviperineal interstitial tissue of female patient in the fourth decade of life. Its occurrence in male patients is even more unusual and commonly appears at a later age. The mainstay of treatment typically involves surgical excision with tumor-free margins, and despite complete resection, local recurrences are common. Read More

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November 2018
1 Read

Histological Subtypes and Clinical Behavior Evaluation of Salivary Gland Tumors.

Acta Med Port 2018 Nov 30;31(11):641-647. Epub 2018 Nov 30.

Department of Pathology. Centro Hospitalar São João. Porto. Unit of Pathology and Oncology. Department of Pathology. Faculdade de Medicina. Universidade do Porto. Porto. Portugal.

Introduction: Salivary gland tumors include a wide spectrum of histological subtypes and clinical behavior, which we aim to evaluate.

Material And Methods: We performed a retrospective study of all salivary gland tumors diagnosed and treated at the Centro Hospitalar São João, Porto, between 2005 and 2015. Histological re- evaluation was performed in all cases and patient files were reviewed and both clinical and follow-up data were collected. Read More

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November 2018
4 Reads

Follow-up and adherence to glaucoma care by newly diagnosed glaucoma patients in enugu, nigeria.

Ophthalmic Epidemiol 2018 Dec 6:1-7. Epub 2018 Dec 6.

a College of Medicine, Enugu State University of Technology(ESUT), Enugu State University of Science and Technology (ESUT) Teaching Hospital Parklane , The Eye Specialists Hospital (TESH) , Enugu , Nigeria.

Purpose: To determine uptake, adherence and influencing factors to follow-up care by newly diagnosed glaucoma patients from free eye screening exercise.

Methods: The study was a cross-sectional survey of newly diagnosed glaucoma patients during free eye screenings carried out in March and October, 2016 in Enugu, Nigeria. Data on participants were analyzed after a minimum of 6 months from the screening for uptake and adherence to follow-up care. Read More

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December 2018
1 Read

In vivo monitoring of intracellular Ca dynamics in the pancreatic β-cells of zebrafish embryos.

Islets 2018 Dec 6:1-18. Epub 2018 Dec 6.

a Institute of Molecular Biology/CMBI , University of Innsbruck , Innsbruck , Austria.

Assessing the response of pancreatic islet cells to glucose stimulation is important for understanding β-cell function. Zebrafish are a promising model for studies of metabolism in general, including stimulus-secretion coupling in the pancreas. We used transgenic zebrafish embryos expressing a genetically-encoded Ca sensor in pancreatic β-cells to monitor a key step in glucose induced insulin secretion; the elevations of intracellular [Ca]. Read More

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December 2018
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DHA supplementation during prenatal ethanol exposure alters the expression of fetal rat liver genes involved in oxidative stress regulation.

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

University of Manitoba, Food and Human Nutritional Sciences, Winnipeg, Manitoba, Canada.

Prenatal ethanol (EtOH) exposure is known to induce adverse effects on fetal brain development. Docosahexaenoic acid (DHA) has been shown to alleviate these effects by upregulating antioxidant mechanisms in the brain. The liver is the first organ to receive enriched blood after placental transport; therefore, it could be negatively affected by EtOH, but no studies have assessed the effects of DHA on fetal liver. Read More

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December 2018
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