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https://www.readbyqxmd.com/read/29775852/biomimetic-magnetoelectric-nanocrystals-synthesized-by-polymerization-of-heme-as-advanced-nanomaterials-for-biosensing-application
#1
Jeong Eun Hyeon, Da Woon Jeong, Young Jin Ko, Seung Wook Kim, Chulhwan Park, Sung Ok Han
Regardless of the malaria disease risk, the malaria parasite Plasmodium falciparum has an interesting mechanism. During its growth within the red blood cell, toxic free heme is converted into an insoluble crystalline form called the malaria pigment, or hemozoin. In particular, natural hemozoin nanocrystals can provide multiple applications in biosensing fields for health care and diagnosis as similar to artificial metal nanoparticles. In this study, the heme was biologically synthesized and polymerized by Corynebacterium glutamicum and final polymer was applied as a biomimetic conductive biopolymer...
May 10, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29775738/humoral-and-mucosal-immune-responses-in-meagre-argyrosomus-regius-juveniles-fed-diets-with-varying-inclusion-levels-of-carob-seed-germ-meal
#2
Francisco Antonio Guardiola, Carolina Barroso, Paula Enes, Ana Couto, Patricia Díaz-Rosales, António Afonso, Erika Kanashiro, Helena Peres, Elisabete Matos, Aires Oliva-Teles, Pedro Pousão-Ferreira, Benjamín Costas
Many studies have assessed the effects of incorporation of plant feedstuffs in fish diets on growth performance, whereas few studies have addressed the effects of fish meal replacement by plant protein sources on fish immune parameters. Thus, the aim of this study was to evaluate the effects on immune response of different inclusion levels of carob seed germ meal (CSGM) as partial replacement for fish meal in diets for meagre (Argyrosomus regius) juveniles. Fish were fed four experimental diets with increased CSGM inclusion levels [0% (control), 7...
May 15, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29775472/spatial-pattern-and-determinants-of-anaemia-in-ethiopia
#3
Bedilu Alamirie Ejigu, Eshetu Wencheko, Kiros Berhane
Anaemia is a condition in which the haemoglobin concentration falls below an established cut-off value due to a decrease in the number and size of red blood cells. The current study aimed (i) to assess the spatial pattern and (ii) to identify determinants related to anaemia using the third Ethiopian demographic health survey. To achieve these objectives, this study took into account the sampling weight and the clustered nature of the data. As a result, multilevel modeling has been used in the statistical analysis...
2018: PloS One
https://www.readbyqxmd.com/read/29775142/aspirin-for-primary-prevention-of-stroke-in-traumatic-cerebrovascular-injury-association-with-increased-risk-of-transfusion
#4
Russell L Griffin, Stephanie R Falatko, Stella Aslibekyan, Virginia Strickland, Mark R Harrigan
OBJECTIVE Blunt traumatic extracranial carotid or vertebral artery injury (i.e., traumatic cerebrovascular injury [TCVI]) occurs in 1%-2% of all blunt trauma admissions, carries a 10% risk of thromboembolic ischemic stroke, and accounts for up to 9600 strokes annually in the US. Screening CT angiograms (CTAs) of patients with trauma has become ubiquitous in recent years, and patients with initially asymptomatic TCVI are commonly treated with antiplatelet agents to prevent stroke. Prophylaxis with antiplatelets is thought to be safer than anticoagulation, which carries a significant risk of hemorrhage in patients with trauma...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29774554/laboratory-assessment-of-the-quality-of-adult-and-neonatal-red-cell-concentrates-manufactured-from-whole-blood-exchange-transfusion-or-intrauterine-transfusion-red-cell-units
#5
A Meli, H New, M McAndrew, M Wiltshire, R Cardigan
BACKGROUND: We evaluated the quality of red cell components in additive solution over 42 days of storage when re-manufactured from neonatal exchange transfusion (ExTx) or intrauterine transfusion (IUT) units on day 7 for issue to adults, neonates or infants. MATERIALS AND METHODS: Red cell concentrates (RCC) manufactured from WB were compared to RCC re-manufactured from ExTx or IUT on day 7, and red cell splits (RCS) manufactured from WB were compared to RCS re-manufactured from ExTx or IUT on day 7...
May 17, 2018: Vox Sanguinis
https://www.readbyqxmd.com/read/29774551/in-vitro-hemodynamic-evaluation-of-an-adult-pulsatile-extracorporeal-membrane-oxygenation-system
#6
Shigang Wang, Morgan Moroi, Christoph E Brehm, Allen R Kunselman, Akif Ündar
The objective of this study was to evaluate a pulsatile extracorporeal membrane oxygenation (ECMO) system in terms of hemodynamic energy generation and transmission under various pulsatile amplitudes, flow rates, and pseudopatient pressures in a simulated adult ECMO circuit. Surplus hemodynamic energy (SHE), a measure of the quality of pulsatility, was used to quantify pulsatile flow. The circuit consisted of an i-cor diagonal pump, an adult XLung oxygenator, a 21 Fr Medtronic Biomedicus femoral arterial cannula, a 23/25 Fr Sorin RAP femoral venous cannula, and 3/8 in ID tubing for both arterial and venous lines...
May 17, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29774232/multiple-origins-of-green-blood-in-new-guinea-lizards
#7
Zachary B Rodriguez, Susan L Perkins, Christopher C Austin
Several species of lizards from the megadiverse island of New Guinea have evolved green blood. An unusually high concentration of the green bile pigment biliverdin in the circulatory system of these lizards makes the blood, muscles, bones, tongue, and mucosal tissues bright green in color, eclipsing the crimson color from their red blood cells. This is a remarkable physiological feature because bile pigments are toxic physiological waste products of red blood cell catabolism and, when chronically elevated, cause jaundice in humans and all other vertebrates...
May 2018: Science Advances
https://www.readbyqxmd.com/read/29774166/hemostatic-state-augmented-with-platelet-indices-among-sudanese-diabetic-septic-foot
#8
Bashir Abdrhman Bashir, Mohamed Salih Ali
Background: Diabetes mellitus is a very rampant metabolic disorder, particularly type II. It has many complications such as the septic foot. Diabetic septic foot (DSF) patients are at high risk for coagulation abnormalities as well as surgical hazards. Owing to the potential sequelae of coagulation and vascular abnormalities, this work aimed at studying the hemostatic state and platelet indices in diabetes type II patients with septic foot. Methods: A case-control study was conducted during the period from July to September 2017 at Dr...
2018: BMC Hematology
https://www.readbyqxmd.com/read/29774145/evaluation-of-attenuative-effect-of-tert-butylhydroquinone-against-diazinon-induced-oxidative-stress-on-hematological-indices-in-male-wistar-rats
#9
Saman Sargazi, Hamidreza Galavi, Sadegh Zarei
Diazinon is an organophosphate toxicant that has been identified to induce oxidative stress within biological systems through altering biochemical and hematological indices, by generating free radicals while deteriorating the cellular antioxidant defense system. The present study was designed to evaluate the effectiveness of tert-butylhydroquinone (TBHQ), a synthetic food additive, in serving as an antioxidant against sub-lethal diazinon-induced oxidative stress in male Wistar rats. Animals were randomly divided into 4 groups: Control (treated with corn oil as a vehicle), diazinon (10 mg/kg/day), TBHQ (0...
June 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29773954/pain-catastrophizing-is-associated-with-poorer-health-related-quality-of-life-in-pediatric-patients-with-sickle-cell-disease
#10
Nitya Bakshi, Ines Lukombo, Inna Belfer, Lakshmanan Krishnamurti
Background: Sickle cell disease (SCD) is an inherited disorder of the red blood cells and is associated with chronic multisystem involvement. While SCD has been associated with poorer health-related quality of life (HRQoL), there is a paucity of data on the relationship of psychological covariates other than anxiety and depression and quality of life (QoL) in children with SCD. Materials and methods: We performed a cross-sectional study of psychological factors, HRQoL, and pain-related outcomes in participants with SCD and race-matched controls as part of a larger study of experimental pain phenotyping...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29773369/cellulose-based-molecularly-imprinted-red-blood-cell-like-microparticles-for-the-selective-capture-of-cortisol
#11
Koichiro Hayashi, Hikaru Hayashi, Shota Yamada, Wataru Sakamoto, Toshinobu Yogo
Magnetite-nanoparticle-containing red-blood-cell-like-microparticles (M-RBC-MPs) with a selective ability for trapping cortisol (COR) were synthesized by an electrospray technique of a molecularly imprinted ethyl(hydroxyethyl) cellulose (EHEC)-based precursor. The as-synthezied M-RBC-MPs were ∼3-μm-disks with a dent. M-RBC-MPs contained magnetite nanoparticles below 15 nm in diameter, which exhibited magnetization and no room-temperature coercivity. The molecularly imprinted M-RBC-MPs (MI-M-RBC-MPs) passed through pores less than their diameter...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29773261/perioperative-transfusion-management-in-gastric-cancer-surgery-analysis-of-the-spanish-subset-of-the-eurecca-oesophago-gastric-cancer-registry
#12
Javier Osorio, Carlos Jericó, Coro Miranda, Elisenda Garsot, Alexis Luna, Mónica Miró, Maite Santamaría, Eva Artigau, Joaquín Rodríguez-Santiago, Sandra Castro, Josep Feliu, Aurora Aldeano, Carles Olona, Dulce Momblan, David Ruiz, Gonzalo Galofré, Inmaculada Pros, Xabier García-Albéniz, Miguel Lozano, Manuel Pera
INTRODUCTION: This study evaluated allogenic packed red blood cell (aPRBC) transfusion rates in patients undergoing resection for gastric cancer and the implementation of blood-saving protocols (BSP). METHODS: Retrospective study of all gastric cancer patients operated on with curative intent in Catalonia and Navarra (2011-2013) and included in the Spanish subset of the EURECCA Oesophago-Gastric Cancer Registry. Hospitals with BSP were defined as those with a preoperative haemoglobin (Hb) optimisation circuit associated with restrictive transfusion strategies...
May 14, 2018: Cirugía Española
https://www.readbyqxmd.com/read/29773141/the-application-of-the-hyper-fluorescent-sensor-in-the-real-time-detection-of-h-2-o-2-in-babesia-bovis-merozoites-in-vitro
#13
Masahito Asada, Hassan Hakimi, Shin-Ichiro Kawazu
In recent years, genetically encoded fluorescent probes have allowed a dramatic advancement in time-lapse imaging, enabling this imaging modality to be used to investigate intracellular events in several apicomplexan parasite species. In this study, we constructed a plasmid vector to stably express a genetically encoded H2 O2 sensor probe called HyPer in Babesia bovis. The HyPer-transfected parasite population was successfully developed and subjected to a time-lapse imaging analysis under in vitro culture conditions...
May 15, 2018: Veterinary Parasitology
https://www.readbyqxmd.com/read/29773000/evaluation-of-antiarthritic-activity-of-butanol-fraction-of-punica-granatum-linn-rind-extract-against-freund-s-complete-adjuvant-induced-arthritis-in-rats
#14
Rupesh Kumar Gautam, Sanjay Sharma, Komal Sharma, Gaurav Gupta
Available conventional drugs produce several side effects; thus, a potent herbal drug is urgently required for the management of rheumatoid arthritis. The present investigation was performed to evaluate the antiarthritic activity of butanol fraction of Punica granatum Linn. rind methanolic extract (PGBF) against Freund's complete adjuvant (FCA)-induced arthritis in rats. An acute toxicity study of butanol fraction was conducted, accompanied by a study of its antiarthritic activity. Chromatography (thin layer chromatography and high-performance thin layer chromatography) analyses were also conducted...
2018: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/29772759/human-babesiosis-caused-by-babesia-duncani-has-widespread-distribution-across-canada
#15
John D Scott, Catherine M Scott
Human babesiosis caused by Babesia duncani is an emerging infectious disease in Canada. This malaria-like illness is brought about by a protozoan parasite infecting red blood cells. Currently, controversy surrounds which tick species are vectors of B. duncani. Since the availability of a serological or molecular test in Canada for B. duncani has been limited, we conducted a seven-year surveillance study (2011⁻2017) to ascertain the occurrence and geographic distribution of B. duncani infection country-wide...
May 17, 2018: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29772259/photocatalytic-production-of-hydroxyl-radicals-by-commercial-tio-2-nanoparticles-and-phototoxic-hazard-identification
#16
Ying Tang, Rui Cai, Ding Cao, Xue Kong, Yongbo Lu
This study identifies the phototoxic potential of commercial titanium dioxide nanoparticles (TiO2 NPs) used in sunscreens and consumer products by employing a tiered testing approach comprising physicochemical, in vitro and ex vivo tests. Our results revealed that all the test samples of TiO2 NPs, varied in surface coating, crystallinity and primary particle size, produced hydroxyl radicals upon UVA photoexcitation as determined by electron spin resonance (ESR) spectroscopy. Their phototoxic potentials were assessed first by combining the validated 3T3 neutral red uptake phototoxicity test and red blood cell phototoxicity test and subsequently in ex vivo models of chick chorioallantoic membrane (CAM) and reconstructed human 3D skin model (H3D)...
May 14, 2018: Toxicology
https://www.readbyqxmd.com/read/29772007/nonparametric-estimation-of-median-survival-times-with-applications-to-multi-site-or-multi-center-studies
#17
Mohammad H Rahbar, Sangbum Choi, Chuan Hong, Liang Zhu, Sangchoon Jeon, Joseph C Gardiner
We propose a nonparametric shrinkage estimator for the median survival times from several independent samples of right-censored data, which combines the samples and hypothesis information to improve the efficiency. We compare efficiency of the proposed shrinkage estimation procedure to unrestricted estimator and combined estimator through extensive simulation studies. Our results indicate that performance of these estimators depends on the strength of homogeneity of the medians. When homogeneity holds, the combined estimator is the most efficient estimator...
2018: PloS One
https://www.readbyqxmd.com/read/29771685/enterotoxigenic-escherichia-coli-blood-group-a-interactions-intensify-diarrheal-severity
#18
Pardeep Kumar, F Matthew Kuhlmann, Subhra Chakroborty, A Louis Bourgeois, Jennifer Foulke-Abel, Brunda Tumala, Tim J Vickers, David A Sack, Barbara DeNearing, Clayton D Harro, W Shea Wright, Jeffrey C Gildersleeve, Matthew A Ciorba, Srikanth Santhanam, Chad K Porter, Ramiro L Gutierrez, Michael G Prouty, Mark S Riddle, Alexander Polino, Alaullah Sheikh, Mark Donowitz, James M Fleckenstein
Enterotoxigenic Escherichia coli (ETEC) infections are highly prevalent in developing countries where clinical presentations range from asymptomatic colonization to severe cholera-like illness. The molecular basis for these varied presentations, that may involve strain-specific virulence features as well as host factors, have not been elucidated. We demonstrate that when challenged with ETEC strain H10407, originally isolated from a case of cholera-like illness, blood group A human volunteers developed severe diarrhea more frequently than individuals from other blood groups...
May 17, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29770997/gemcitabine-nab-paclitaxel-for-pediatric-relapsed-refractory-sarcomas
#19
Jonathan L Metts, Adina L Alazraki, Dana Clark, Ernest K Amankwah, Karen J Wasilewski-Masker, Bradley A George, Thomas A Olson, Thomas Cash
BACKGROUND: Pediatric patients with relapsed/refractory sarcomas have poor outcomes and need novel therapies that provide disease control while maintaining an acceptable quality of life. The activity and toxicity of gemcitabine and nab-paclitaxel in combination has not been reported in pediatrics. PROCEDURE: We reviewed the records of fifteen relapsed/refractory patients and one treatment-naïve patient who received gemcitabine/nab-paclitaxel at our institution...
May 17, 2018: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/29770457/abo-genotyping-with-next-generation-sequencing-to-resolve-heterogeneity-in-donors-with-serology-discrepancies
#20
Ping Chun Wu, Yin-Hung Lin, Lei Fang Tsai, Ming Hung Chen, Pei-Lung Chen, Shun-Chung Pai
BACKGROUND: ABO subtypes are characterized by the alteration of antigens present and their expression levels on red blood cells and many are linked to genetic changes in the ABO gene. Weakened expression of antigens should be identified to prevent transfusion reactions or ABO-incompatible transplantations. Genotyping can be applied to identify subtypes to complement serologic testing. Next-generation sequencing (NGS) has shown to provide sensitive and accurate genotyping results as well as valuable cis/trans information...
May 16, 2018: Transfusion
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