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https://www.readbyqxmd.com/read/28533752/protocatechuic-acid-a-phenolic-from-sansevieria-roxburghiana-leaves-suppresses-diabetic-cardiomyopathy-via-stimulating-glucose-metabolism-ameliorating-oxidative-stress-and-inhibiting-inflammation
#1
Niloy Bhattacharjee, Tarun K Dua, Ritu Khanra, Swarnalata Joardar, Ashis Nandy, Achintya Saha, Vincenzo De Feo, Saikat Dewanjee
Persistent hyperglycemia, impairment of redox status and establishment of inflammatory pathophysiology integrally play important role in the pathogenesis of diabetic cardiomyopathy (DC). Present study examined the therapeutic potential of protocatechuic acid isolated from the Sansevieria roxburghiana rhizomes against DC employing rodent model of type 2 diabetes (T2D). T2D was induced by high fat diet + a low-single dose of streptozotocin (35 mg/kg, i.p.). T2D rats exhibited significantly (p < 0.01) high fasting blood glucose level...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28528868/pleiotropic-effects-of-trait-associated-genetic-variation-on-dna-methylation-utility-for-refining-gwas-loci
#2
Eilis Hannon, Mike Weedon, Nicholas Bray, Michael O'Donovan, Jonathan Mill
Most genetic variants identified in genome-wide association studies (GWASs) of complex traits are thought to act by affecting gene regulation rather than directly altering the protein product. As a consequence, the actual genes involved in disease are not necessarily the most proximal to the associated variants. By integrating data from GWAS analyses with those from genetic studies of regulatory variation, it is possible to identify variants pleiotropically associated with both a complex trait and measures of gene regulation...
May 13, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28522410/a-global-human-health-risk-assessment-for-octamethylcyclotetrasiloxane-d4
#3
Robinan Gentry, Allison Franzen, Cynthia Van Landingham, Tracy Greene, Kathy Plotzke
Octamethylcyclotetrasiloxane (D4) is a low-molecular-weight volatile cyclic siloxane, primarily used as an intermediate in the production of some widely-used industrial and consumer silicone based polymers and may be present as a component in a variety of consumer products. A global "harmonized" risk assessment was conducted to meet requirements for substance-specific risk assessments conducted by regulatory agencies such as USEPA's Integrated Risk Information System (IRIS), Health Canada's Chemical Management Program (CMP) and various independent scientific committees of the European Commission (e...
May 15, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28521388/non-targeted-high-resolution-mass-spectrometry-strategy-for-simultaneous-monitoring-of-xenobiotics-and-endogenous-compounds-in-green-sea-turtles-on-the-great-barrier-reef
#4
Amy L Heffernan, Maria M Gómez-Ramos, Caroline Gaus, Soumini Vijayasarathy, Ian Bell, Christine Hof, Jochen F Mueller, Maria J Gómez-Ramos
Chemical contamination poses a threat to ecosystem, biota and human health, and identifying these hazards is a complex challenge. Traditional hazard identification relies on a priori-defined targets of limited chemical scope, and is generally inappropriate for exploratory studies such as explaining toxicological effects in environmental systems. Here we present a non-target high resolution mass spectrometry environmental monitoring study with multivariate statistical analysis to simultaneously detect biomarkers of exposure (e...
May 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28515851/blood-conservation-pediatric-cardiac-surgery-in-all-ages-and-complexity-levels
#5
Mohsen Karimi, Jill M Sullivan, Carrie Linthicum, Anil Mathew
AIM: To demonstrate the feasibility of blood conservation methods and practice across all ages and risk categories in congenital cardiac surgery. METHODS: We retrospectively analyzed a collected database of 356 patients who underwent cardiac surgery using cardiopulmonary bypass (CPB) from 2010-2015. The patients were grouped into blood conservation (n = 138) and non-conservation (n = 218) groups and sub-grouped based on their ages and procedural complexity scores...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28515450/microfluidic-sorting-of-cells-by-viability-based-on-differences-in-cell-stiffness
#6
Muhymin Islam, Hannah Brink, Syndey Blanche, Caleb DiPrete, Tom Bongiorno, Nicholas Stone, Anna Liu, Anisha Philip, Gonghao Wang, Wilbur Lam, Alexander Alexeev, Edmund K Waller, Todd Sulchek
The enrichment of viable cells is an essential step to obtain effective products for cell therapy. While procedures exist to characterize the viability of cells, most methods to exclude nonviable cells require the use of density gradient centrifugation or antibody-based cell sorting with molecular labels of cell viability. We report a label-free microfluidic technique to separate live and dead cells that exploits differences in cellular stiffness. The device uses a channel with repeated ridges that are diagonal with respect to the direction of cell flow...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515163/assessment-of-nitric-oxide-production-in-mitochondrial-encephalomyopathy-lactic-acidosis-and-stroke-like-episodes-syndrome-with-the-use-of-a-stable-isotope-tracer-infusion-technique
#7
REVIEW
Ayman W El-Hattab, Farook Jahoor
Mitochondrial disorders result from dysfunctional mitochondria that are unable to generate sufficient energy to meet the needs of various organs. Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) syndrome is one of the most frequent maternally inherited mitochondrial disorders. There is growing evidence that nitric oxide (NO) deficiency occurs in MELAS syndrome and results in impaired blood perfusion that contributes significantly to several complications in this disease. NO is synthesized from arginine by NO synthase, which catalyzes the conversion of arginine to NO and citrulline...
May 17, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28514863/surface-dependent-contact-activation-of-factor-xii-and-blood-plasma-coagulation-induced-by-mixed-thiol-surfaces
#8
James W Bauer, Li-Chong Xu, Erwin A Vogler, Christopher A Siedlecki
Studies of the activation of FXII in both platelet poor plasma and in neat buffer solutions were undertaken for a series of mixed thiol self-assembled monolayers spanning a broad range of water wettability. A wide spectrum of carboxyl/methyl-, hydroxyl/methyl-, and amine/methyl-thiol modified surfaces were prepared, characterized, and then utilized as the procoagulant materials in a series of FXII activation studies. X-ray photoelectron spectroscopy was utilized to verify the sample surface's thiol composition and contact angles measured to determine the sample surface's wettability...
May 17, 2017: Biointerphases
https://www.readbyqxmd.com/read/28506207/the-midgut-transcriptome-of-aedes-aegypti-fed-with-saline-or-protein-meals-containing-chikungunya-virus-reveals-genes-potentially-involved-in-viral-midgut-escape
#9
Shengzhang Dong, Susanta K Behura, Alexander W E Franz
BACKGROUND: The mosquito Aedes aegypti is the primary vector for medically important arthropod-borne viruses, including chikungunya virus (CHIKV). Following oral acquisition, an arbovirus has to persistently infect several organs in the mosquito before becoming transmissible to another vertebrate host. A major obstacle an arbovirus has to overcome during its infection cycle inside the mosquito is the midgut escape barrier, representing the exit mechanism arboviruses utilize when disseminating from the midgut...
May 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28493021/cobalt-oxyhydroxide-nanoflakes-with-intrinsic-peroxidase-catalytic-activity-and-their-application-to-serum-glucose-detection
#10
Yu-Min Wang, Jin-Wen Liu, Jian-Hui Jiang, Wenwan Zhong
Cobalt oxyhydroxide (CoOOH) nanoflakes, an emerging type of two-dimensional nanomaterial, show great potential for use in molecular detection. Previous assays utilizing such materials have largely been based on their outstanding fluorescence quenching ability and oxidizing power. Herein, we report the intrinsic peroxidase-like activity of cobalt oxyhydroxide (CoOOH) nanoflakes, and we show how this activity can be employed for glucose detection. We found that, in the presence of hydrogen peroxide (H2O2), the nanoflakes accelerated the conversion of peroxidase substrates such as 3,3',5,5'-tetramethylbenzidine (TMB) into colored products...
May 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28485933/hplc-based-activity-profiling-for-gabaa-receptor-modulators-in-extracts-validation-of-an-approach-utilizing-a-larval-zebrafish-locomotor-assay
#11
Fahimeh Moradi-Afrapoli, Samad Nejad Ebrahimi, Martin Smiesko, Matthias Hamburger
Gamma-aminobutyric acid type A (GABAA) receptors are major inhibitory neurotransmitter receptors in the central nervous system and a target for numerous clinically important drugs used to treat anxiety, insomnia, and epilepsy. A series of allosteric GABAA receptor agonists was identified previously with the aid of HPLC-based activity profiling, whereby activity was tracked with an electrophysiological assay in Xenopus laevis oocytes. To accelerate the discovery process, an approach has been established for HPLC-based profiling using a larval zebrafish (Danio rerio) seizure model induced by pentylenetetrazol (PTZ), a pro-convulsant GABAA receptor antagonist...
May 9, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28481921/low-sodium-diet-induces-atherogenesis-regardless-of-lowering-blood-pressure-in-hypertensive-hyperlipidemic-mice
#12
Fernanda B Fusco, Diego J Gomes, Kely C S Bispo, Veronica P Toledo, Denise F Barbeiro, Vera L Capelozzi, Luzia N S Furukawa, Ana P P Velosa, Walcy R Teodoro, Joel C Heimann, Eder C R Quintao, Marisa Passarelli, Edna R Nakandakare, Sergio Catanozi
This study investigated the influence of sodium restriction and antihypertensive drugs on atherogenesis utilizing hypertensive (H) low-density lipoprotein-receptor knockout mice treated or not with losartan (Los) or hydralazine (Hyd) and fed low-sodium (LS) or normal-sodium (NS) chow. Despite reducing the blood pressure (BP) of H-LS mice, the LS diet caused arterial lipid infiltration due to increased plasma total cholesterol (TC) and triglycerides (TG). Los and Hyd reduced the BP of H-LS mice, and Los effectively prevented arterial injury, likely by reducing plasma TG and nonesterified fatty acids...
2017: PloS One
https://www.readbyqxmd.com/read/28481865/effect-of-hemodilution-in-vitro-with-hydroxyethyl-starch-on-hemostasis
#13
Shanliang Jin, Guifang Yu, Ruijiao Hou, Boxiong Shen, Hong Jiang
BACKGROUND Hydroxyethyl starch (HES) solutions are used for volume expansion during surgery. We aimed to investigate how 6%HES 130/0.4 affects hemostasis. MATERIAL AND METHODS Blood samples were collected from 12 healthy adult volunteers, diluting with 6%HES 130/0.4 (HES group) or Ringer lactate solution (RL control group). The hemodilution ratio (HR) of citrated blood volume to plasma substitute volume was 10: 0 (undiluted), 10: 2, 10: 4, and 10: 6. Clotting factors activity was measured. Thrombin generation was monitored...
May 8, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28481839/high-ratio-plasma-resuscitation-does-not-improve-survival-in-pediatric-trauma-patients
#14
Jeremy W Cannon, Michael A Johnson, Robert C Caskey, Matthew A Borgman, Lucas P Neff
BACKGROUND: Damage control resuscitation (DCR) including balanced resuscitation with high ratios of plasma (PLAS) and platelets (PLT) to packed red blood cells (PRBC) improves survival in adult patients. We sought to evaluate the effect of a high ratio PLAS to PRBC resuscitation strategy in massively transfused pediatric patients with combat injuries. METHODS: The Department of Defense Trauma Registry (DoDTR) was queried from 2001-2013 for pediatric trauma patients (<18 years)...
May 6, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28466455/valorization-of-proteins-from-co-and-by-products-from-the-fish-and-meat-industry
#15
REVIEW
Tone Aspevik, Åge Oterhals, Sissel Beate Rønning, Themis Altintzoglou, Sileshi Gizachew Wubshet, Asbjørn Gildberg, Nils Kristian Afseth, Ragnhild Dragøy Whitaker, Diana Lindberg
Large volumes of protein-rich residual raw materials, such as heads, bones, carcasses, blood, skin, viscera, hooves and feathers, are created as a result of processing of animals from fisheries, aquaculture, livestock and poultry sectors. These residuals contain proteins and other essential nutrients with potentially bioactive properties, eligible for recycling and upgrading for higher-value products, e.g. for human, pet food and feed purposes. Here, we aim to cover all the important aspects of achieving optimal utilization of proteins in such residual raw materials, identifying those eligible for human consumption as co-products and for feed applications as by-products...
June 2017: Topics in Current Chemistry (Journal)
https://www.readbyqxmd.com/read/28447859/transgene-expression-in-dogs-after-liver-directed-hydrodynamic-delivery-of-i-sleeping-beauty-i-transposons-using-balloon-catheters
#16
Kendra Anne Hyland, Elena L Aronovich, Erik R Olson, Jason B Bell, Myra Urness Rusten, Roland Gunther, David W Hunter, Perry B Hackett, R Scott McIvor
The <i>Sleeping Beauty</i> transposon system has been extensively tested for integration of reporter and therapeutic genes <i>in vitro</i> and <i>in vivo</i> in mice. Dogs were used as a large animal model for human therapy and minimally invasive infusion of DNA solutions. DNA solutions were delivered into the entire liver or the left side of the liver using balloon catheters for temporary occlusion of venous outflow. A peak intravascular pressure between 80 and 140 mmHg supported sufficient DNA delivery in dog liver for detection of secretable reporter proteins...
April 27, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28446193/liver-morphometrics-and-metabolic-blood-profile-across-divergent-phenotypes-for-feed-efficiency-in-the-bovine
#17
Yuri Regis Montanholi, Livia Sadocco Haas, Kendall Carl Swanson, Brenda Lee Coomber, Shigeto Yamashiro, Stephen Paul Miller
BACKGROUND: Feed costs are a major expense in the production of beef cattle. Individual variation in the efficiency of feed utilization may be evident through feed efficiency-related phenotypes such as those related to major energetic sinks. Our objectives were to assess the relationships between feed efficiency with liver morphometry and metabolic blood profile in feedlot beef cattle. METHODS: Two populations (A = 112 and B = 45) of steers were tested for feed efficiency...
April 26, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28442888/new-developments-in-the-treatment-of-multiple-myeloma-clinical-utility-of-daratumumab
#18
REVIEW
Cian McEllistrim, Janusz Krawczyk, Michael E O'Dwyer
Multiple myeloma is a clonal disorder of plasma cells that is currently considered incurable. CD38 is a 46 kDa type II transmembrane glycoprotein that is highly expressed on myeloma cells. Daratumumab is a first in-class human IgG1 monoclonal antibody that targets CD38, and has antimyeloma effects through several mechanisms. Single-agent trials show surprising activity in heavily pretreated myeloma patients. Trials in the relapsed setting, where daratumumab is added to lenalidomide and dexamethasone or bortezomib and dexamethasone, have demonstrated significantly improved progression-free survival with acceptable toxicity...
2017: Biologics: Targets & Therapy
https://www.readbyqxmd.com/read/28437604/antiplasmodial-mode-of-action-of-pantothenamides-pantothenate-kinase-serves-as-a-metabolic-activator-not-as-a-target
#19
Marianne de Villiers, Christina Spry, Cristiano J Macuamule, Leanne Barnard, Gordon Wells, Kevin J Saliba, Erick Strauss
N-Substituted pantothenamides (PanAms) are pantothenate analogues with up to nanomolar potency against blood-stage Plasmodium falciparum (the most virulent species responsible for malaria). Although these compounds are known to target coenzyme A (CoA) biosynthesis and/or utilization, their exact mode of action (MoA) is still unknown. Importantly, PanAms that retain the natural β-alanine moiety are more potent than other variants, consistent with the involvement of processes that are selective for pantothenate (the precursor of CoA) or its derivatives...
May 4, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28428532/ceftriaxone-induced-hemolytic-anemia-in-a-jehovah-s-witness
#20
James Tasch, Pedro Gonzalez-Zayaz
BACKGROUND Drug-induced immune hemolytic anemia (DIIHA) is a rare condition that may result from the administration of an antibiotic, most notably the cephalosporin class, commonly used in both the adult and pediatric populations. A delay in recognition by a provider may lead to continuation of the offending agent and possibly result in fatal outcomes. CASE REPORT We report the case of a 65-year-old woman on ceftriaxone infusions after being diagnosed with acute mitral valve endocarditis 3 weeks prior, which presented with severe anemia and bilateral transient vision loss...
April 21, 2017: American Journal of Case Reports
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