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https://www.readbyqxmd.com/read/28324828/evaluation-of-dna-damage-and-physiological-responses-in-nile-tilapia-oreochromis-niloticus-linnaeus-1758-exposed-to-sub-lethal-diclofenac-dcf
#1
Pramod K Pandey, Malachy N O Ajima, Kundan Kumar, Nalini Poojary, Saurav Kumar
The frequent bioaccumulation of pharmaceuticals in the aquatic ecosystem has raised a concern about their possible ecotoxicological consequences. DNA damage, haematological changes and activities of oxidative stress enzymes in Nile tilapia, Oreochromis niloticus in response to diclofenac (DCF) exposure were investigated for up to 60 days at the concentrations of 0.17, 0.34 and 0.68mgL(-1) in the fish liver. Evaluation of genotoxic effects of the drug in the liver, using single-cell gel electrophoresis, showed DNA damage on exposure at the concentrations of 0...
March 8, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28324506/induction-of-site-specific-oxidative-damage-at-telomeres-by-killerred-fused-shelretin-proteins
#2
Rong Tan, Li Lan
Chronic oxidative stress is the major endogenous metabolic stress and contributes directly to telomere shortening and senescence. Understanding the dysfunction of telomeres under oxidative stress will greatly facilitate healthy aging and advance the treatment of aging-related diseases. Here, we describe the KR-TEL (KillerRed induced DNA damage at telomeres) system that induces site-specific oxidative damage at telomeres. We have developed the KR-TEL system by fusing killerred with the shelterin component TRF1 (KR-TRF1) or other shelterin proteins...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28324211/comparison-of-in-vitro-osteogenic-potential-of-iliac-crest-and-degenerative-facet-joint-bone-autografts-for-intervertebral-fusion-in-lumbar-spinal-stenosis
#3
Jeroen Geurts, Daniela Ramp, Stefan Schären, Cordula Netzer
PURPOSE: The promotion of spinal fusion using bone autografts is largely mediated by the osteoinductive potential of progenitors/mesenchymal stem cells (MSC) that reside in the marrow spaces of cancellous bone. Iliac crest is the common autograft donor site, but its use presents an increased risk for donor site pain, morbidity and infection. Degenerative bone samples harvested during facetectomy might provide an alternative viable source of osteoinductive autografts. In this study, we conducted an intra-individual comparison of the osteogenic potential of isolated low passage MSC from both sources...
March 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28324160/regulation-of-blood-oxygen-transport-in-hibernating-mammals
#4
Inge G Revsbech, Angela Fago
Along with the periodic reductions in O2 requirements of mammalian hibernators during winter, the O2 affinity of the blood of mammalian hibernators is seasonally regulated to help match O2 supply to consumption, contributing to limit tissue oxidative stress, particularly at arousals. Specifically, mammalian hibernators consistently show an overall increase in the blood-O2 affinity, which causes a decreased O2 unloading to tissues, while having similar or lower tissue O2 tensions during hibernation. This overview explores how the decreased body temperature and concentration of red blood cell 2,3-diphosphoglycerate (DPG) that occur in hibernation contribute separately or in combination to the concurrent increase in the O2 affinity of the hemoglobin, the O2 carrier protein of the blood...
March 21, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28320172/neuropathological-findings-from-an-autopsied-case-showing-posterior-reversible-encephalopathy-syndrome-like-neuroradiological-findings-associated-with-premedication-including-tacrolimus-for-autologous-peripheral-blood-stem-cell-transplantation
#5
Yuichi Hayashi, Akio Kimura, Hiroshi Nakamura, Maya Mimuro, Yasushi Iwasaki, Akira Hara, Mari Yoshida, Takashi Inuzuka
Posterior reversible encephalopathy syndrome (PRES) is diagnosed based on neuroradiological findings. Typically, PRES is reversible and presents with a good outcome; however, fatal outcomes have been reported. We report an autopsied case showing PRES-like neuroradiological findings associated with premedication including tacrolimus for autologous peripheral blood stem cell transplantation in a 28-year-old woman with a 2-year history of acute myeloid sarcoma/acute myeloid leukemia. Neurological examination revealed disturbed consciousness, muscle weakness in all extremities, and bilaterally diminished tendon reflexes...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320082/rosmarinic-acid-plays-a-protective-role-in-the-embryogenesis-of-zebrafish-exposed-to-food-colours-through-its-influence-on-aurora-kinase-a-level
#6
Y Swarnalatha, I S Jerrine Joseph, Tippabathani Jayakrishna
OBJECTIVE: To evaluate the protective nature of the rosmarinic acid from Sphaeranthus amaranthoides during zebra fish embryogenesis. METHODS: Rosmarinic acid was isolated from the S. amaranthoides. An accurate, sensitive and simple LC-MS analysis was performed to determine the rosmarinic acid from S. amaranthoides. In the present study, zebrafish embryos were exposed to crimson red and sunset yellow at a concentration of 0.1 and 0.5mg/l and the effect of these food colours on the levels of aurora kinase A was studied individually...
March 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319284/advanced-squamous-cell-carcinoma-of-the-axillae-mimicking-hidradenitis-suppurativa
#7
Clio Dessinioti, Mikaella Plaka, Chrisa Zisimou, Eleftheria Christofidou, Christina Antoniou, Alexander J Stratigos
A 56 year-old man presented to our Hidradenitis Clinic with an exophytic, bovine-red, ulcerated plaque in the left axillae (figure 1). He reported that he was diagnosed with hidradenitis suppurativa when this lesion first appeared 8 years ago, as a single small, occasionally purulent, nodule, that had enlarged considerably over the past 7 months. He had previously received oral and topical antibiotics with no improvement. This article is protected by copyright. All rights reserved.
March 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28319164/modeling-the-potential-impact-on-the-us-blood-supply-of-transfusing-critically-ill-patients-with-fresher-stored-red-blood-cells
#8
Arianna Simonetti, Hussein Ezzeldin, Mikhail Menis, Stephen McKean, Hector Izurieta, Steven A Anderson, Richard A Forshee
BACKGROUND: Although some studies have suggested that transfusion recipients may have better medical outcomes if transfused with red blood cell units stored for a short time, the overall body of evidence shows mixed results. It is important to understand how using fresher stored red blood cell units for certain patient groups may affect blood availability. METHODS: Based on the Stock-and-Flow simulation model of the US blood supply developed by Simonetti et al. 2014, we evaluated a newly implemented allocation method of preferentially transfusing fresher stored red blood cell units to a subset of high-risk group of critically ill patients and its potential impact on supply...
2017: PloS One
https://www.readbyqxmd.com/read/28319143/toxicity-effects-of-di-2-ethylhexyl-phthalate-to-eisenia-fetida-at-enzyme-cellular-and-genetic-levels
#9
Tingting Ma, Wei Zhou, Li'ke Chen, Longhua Wu, Peter Christie, Haibo Zhang, Yongming Luo
Di-(2-ethylhexyl) phthalate (DEHP) is a dominant phthalic acid ester (PAE) that has aroused public concern due to its resistance to degradation and its toxicity as an endocrine-disrupting compound. Effects of different concentrations of DEHP on Eisenia fetida in spiked natural soil have been studied in the body of the earthworm by means of soil cultivation tests 7, 14, 21 and 28 days after exposure. The results indicated that, in general, superoxide dismutase (SOD) activity, malondialdehyde (MDA) content, metallothionein (MT) content, the expression of heat shock protein 70 (HSP 70) and all the tested geno-toxicity parameters are promoted as time elapses and with increasing concentration of DEHP...
2017: PloS One
https://www.readbyqxmd.com/read/28318977/aromatic-decoration-determines-the-formation-of-anthocyanic-vacuolar-inclusions
#10
Kalyani Kallam, Ingo Appelhagen, Jie Luo, Nick Albert, Huaibi Zhang, Simon Deroles, Lionel Hill, Kim Findlay, Øyvind M Andersen, Kevin Davies, Cathie Martin
Anthocyanins are some of the most widely occurring secondary metabolites in plants, responsible for the orange, red, purple, and blue colors of flowers and fruits and red colors of autumn leaves. These pigments accumulate in vacuoles, and their color is influenced by chemical decorations, vacuolar pH, the presence of copigments, and metal ions. Anthocyanins are usually soluble in the vacuole, but in some plants, they accumulate as discrete sub-vacuolar structures. Studies have distinguished intensely colored intra-vacuolar bodies observed in the cells of highly colored tissues, termed anthocyanic vacuolar inclusions (AVIs), from more globular, membrane-bound anthocyanoplasts...
March 8, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28318365/effects-of-tgf-%C3%AE-on-uterine-fibroids-of-women-of-childbearing-age-and-uterine-artery-embolization
#11
Tao Shen, Hongjian Shi, Qiang Xu, Qian Song, Yuanfen Xu, Youhua Huang
PURPOSE: To evaluate the effects of transforming growth factor-β (TGF-β) on uterine fibroids of women of childbearing age and uterine artery embolization (UAE) using Embosphere microspheres. MATERIAL AND METHODS: A total of 128 eligible women were randomly divided into an experimental group and a control group (n = 64) who received UAE using Embosphere microspheres and panhysterectomy, respectively. Another 128 healthy women receiving physical examination in the same period were also enrolled...
March 20, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28318242/whole-blood-metabolomics-by-1h-nmr-spectroscopy-provides-a-new-opportunity-to-evaluate-coenzymes-and-antioxidants
#12
G A Nagana Gowda, Daniel Raftery
Conventional human blood metabolomics employs serum or plasma and provides a wealth of metabolic information therein. However, this approach lacks the ability to measure and evaluate important metabolites such as coenzymes that are present at high concentrations in red blood cells. As an important alternative to serum/plasma metabolomics, we show here that a simple 1H NMR experiment can simultaneously measure coenzymes and antioxidants in extracts of whole human blood, in addition to the nearly 70 metabolites that were shown to be quantitated in serum/plasma, recently [Anal...
March 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28318100/abrogation-of-red-blood-cell-g6pd-enzyme-activity-through-heat-treatment-development-of-survey-material-for-the-uk-neqas-g6pd-scheme
#13
D R Roper, B De la Salle, V Soni, K Fletcher, J A Green
INTRODUCTION: Participation in external quality assessment (EQA) is central to the maintenance of high-quality laboratory results in patient diagnosis and clinical trials. Laboratories in the TAF112582 DETECTIVE study (ClinicalTrials.gov identifier: NCT01376167) are enrolled in the United Kingdom National Quality Assessment Scheme (UK NEQAS) for glucose-6-phosphate dehydrogenase (G6PD) quantitative assay, which utilizes ovine (sheep) blood as a readily available source of apparently G6PD-deficient survey material...
March 20, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28317945/identification-and-comparative-profiling-of-mirnas-in-herbaceous-peony-paeonia-lactiflora-pall-with-red-yellow-bicoloured-flowers
#14
Daqiu Zhao, Mengran Wei, Min Shi, Zhaojun Hao, Jun Tao
Herbaceous peony (Paeonia lactiflora Pall.) is popular worldwide because of its gorgeous flower colour, and the yellow flower is the rarest. However, its mechanism of yellow formation is still unexplored from the post-translational level. In this study, the anatomy of the petal, cell sap pH and metal elements were investigated in bicoloured flower cultivar 'Jinhui' with red outer-petal and yellow inner-petal, and the yellow formation was influenced by the anatomy of petal, while not by the cell sap pH and metal elements...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317347/-effects-of-strontium-ranelate-on-the-rats-palatal-suture-after-rapid-maxillary-expansion
#15
Kong Chao, Wang Xuxia, Wang Qianqian, Han Yuanyuan, Zhao Shuya, Zhang Jun
OBJECTIVE: This study investigated the effects of strontium ranelate (SrR) on the rats' palatal suture after rapid maxillary expansion (RME). METHODS: Thirty-six male 6-week-old Wistar rats were randomly divided into three groups: control group (A), expansion only group (B), and expansion plus SrR group (C). Each group comprised 12 rats. Neither expansion nor SrR was given to group A. Each rat in groups B and C was set an orthodontic appliance with an initial expansive force of 1 N...
August 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28317078/role-of-selenium-from-different-sources-in-prevention-of-pulmonary-arterial-hypertension-syndrome-in-broiler-chickens
#16
A K Zamani Moghaddam, M H Mehraei Hamzekolaei, F Khajali, H Hassanpour
Pulmonary arterial hypertension (PAH) syndrome in broilers is associated with hypoxia, which prevails at high altitude. Oxidative stress is the pathogenic mechanism underlying PAH. Because selenium is key element in the structure of antioxidant enzymes, we evaluated pulmonary hypertensive responses in broiler chickens fed with diets supplemented with organic or nano-selenium. One hundred forty-four broilers (starting at 5 days old) were fed with (i) control group: birds received a standard diet; (ii) nano-selenium group: birds were fed with basal diet supplemented with nano-selenium at 0...
March 20, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28317028/mycobacterial-caseinolytic-protease-gene-regulator-clgr-is-a-substrate-of-caseinolytic-protease
#17
Yoshiyuki Yamada, Thomas Dick
The mycobacterial caseinolytic protease ClpP1P2 is a degradative protease that recently gained interest as a genetically and pharmacologically validated drug target for tuberculosis. The first whole-cell active ClpP1P2 inhibitor, the human proteasome inhibitor bortezomib, is currently undergoing lead optimization to introduce selectivity for the bacterial target. How inhibition of ClpP1P2 translates into whole-cell antimicrobial activity is little understood. Previous work has shown that the caseinolytic protease gene regulator ClgR is an activator of the clpP1P2 genes and also suggested that this transcription factor may be a substrate of the protease...
March 2017: MSphere
https://www.readbyqxmd.com/read/28317022/water-dispersible-silica-coated-upconverting-liposomes-can-a-thin-silica-layer-protect-tta-uc-against-oxygen-quenching
#18
Sven H C Askes, Vincent C Leeuwenburgh, Wim Pomp, Hadi Arjmandi-Tash, Stefania Tanase, Thomas Schmidt, Sylvestre Bonnet
Light upconversion by triplet-triplet annihilation (TTA-UC) in nanoparticles has received considerable attention for bioimaging and light activation of prodrugs. However, the mechanism of TTA-UC is inherently sensitive for quenching by molecular oxygen. A potential oxygen protection strategy is the coating of TTA-UC nanoparticles with a layer of oxygen-impermeable material. In this work, we explore if (organo)silica can fulfill this protecting role. Three synthesis routes are described for preparing water-dispersible (organo)silica-coated red-to-blue upconverting liposomes...
March 13, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28315915/four-patients-with-gastrointestinal-bleeding-identified-by-a-modified-in-vivo-technique-with-labeled-red-blood-cells-sedimentation
#19
Kang-Hung Chao, Cheng-Kai Huang, Dmytro Luzhbin, Jay Wu
OBJECTIVE: Gastrointestinal bleeding scintigraphy (GIBS) offers the advantage of continuous monitoring of patients to localize the site of gastrointestinal bleeding. In this study, a modified in vivo labeling method with sedimentation of the labeled red blood cells (RBC) was applied to remove free technetium-99m ((99m)Tc) and increase labeling efficiency. PATIENTS AND METHODS: Four patients were studied. A modified in vivo RBC labeling method was used. After 10 minutes of RBC sedimentation, patients' blood plasma in the upper part of the syringe was removed, and the erythrocytes labeled with (99m)Tc were re-administered to the patient...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28315692/role-of-epithelial-mesenchymal-transition-emt-and-fibroblast-function-in-cerium-oxide-nanoparticles-induced-lung-fibrosis
#20
Jane Ma, Bridget Bishoff, R R Mercer, Mark Barger, Diane Schwegler-Berry, Vincent Castranova
The emission of cerium oxide nanoparticles (CeO2) from diesel engines, using cerium compounds as a catalyst to lower the diesel exhaust particles, is a health concern. We have previously shown that CeO2 induced pulmonary inflammation and lung fibrosis. The objective of the present study was to investigate the modification of fibroblast function and the role of epithelial-mesenchymal transition (EMT) in CeO2-induced fibrosis. Male Sprague-Dawley rats were exposed to CeO2 (0.15 to 7mg/kg) by a single intratracheal instillation and sacrificed at various times post-exposure...
March 15, 2017: Toxicology and Applied Pharmacology
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