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https://www.readbyqxmd.com/read/28922716/quaternary-ammonium-groups-modified-starch-microspheres-for-instant-hemorrhage-control
#1
Fangping Chen, Xiaoyan Cao, Junxia Yu, Huantong Su, Shuda Wei, Hua Hong, Changsheng Liu
Instant rapid hemostasis is crucial not only for decreasing mortality in these conditions, but also for optimal recovery. The hemostatic agents on the market suffer from inefficiency hemostasis, nondegradability, high cost and potential safety issues. It is necessary to develop a hemostatic agent with rapid hemostatic performance, potent biodegradation and improved biocompatibility. The aim of this work was to develop a novel type of cationic modified starch microspheres (CS) and investigate its hemostatic performance...
August 24, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28922233/endoscopic-versus-open-repair-for-craniosynostosis-in-infants-using-propensity-score-matching-to-compare-outcomes-a-multicenter-study-from-the-pediatric-craniofacial-collaborative-group
#2
Douglas R Thompson, David Zurakowski, Charles M Haberkern, Paul A Stricker, Petra M Meier
BACKGROUND: The North American Pediatric Craniofacial Collaborative Group (PCCG) established the Pediatric Craniofacial Surgery Perioperative Registry to evaluate outcomes in infants and children undergoing craniosynostosis repair. The goal of this multicenter study was to utilize this registry to assess differences in blood utilization, intensive care unit (ICU) utilization, duration of hospitalization, and perioperative complications between endoscopic-assisted (ESC) and open repair in infants with craniosynostosis...
September 14, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28921569/murine-red-blood-cells-from-genetically-distinct-donors-cross-regulate-when-stored-together
#3
Ariel Hay, Heather L Howie, Hayley R Waterman, Karen de Wolski, James C Zimring
BACKGROUND: Donor variability of red blood cell (RBC) storage has been observed in both humans and animal models. We utilized a strain of mice with RBCs known to store well (B6) and a strain known to store poorly (FVB) to test the hypothesis that RBCs affected the storage of other RBCs. STUDY DESIGN AND METHODS: Five strains of mice were used: 1) transgenic B6 mice expressing green fluorescent protein (GFP) in their RBCs (GFP.B6), 2) wild-type B6 mice, 3) wild-type FVB mice, 4) F1 crosses between GFP...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28921542/pathogen-inactivation-of-dengue-virus-in-red-blood-cells-using-amustaline-and-glutathione
#4
Maite Aubry, Andrew Laughhunn, Felicia Santa Maria, Marion C Lanteri, Adonis Stassinopoulos, Didier Musso
BACKGROUND: Dengue virus (DENV) is an arbovirus primarily transmitted through mosquito bite; however, DENV transfusion-transmitted infections (TTIs) have been reported and asymptomatic DENV RNA-positive blood donors have been identified in endemic countries. DENV is considered a high-risk pathogen for blood safety. One of the mitigation strategies to prevent arbovirus TTIs is pathogen inactivation. In this study we demonstrate that the amustaline and glutathione (S-303/GSH) treatment previously found effective against Zika virus in red blood cells (RBCs) is also effective in inactivating DENV...
September 16, 2017: Transfusion
https://www.readbyqxmd.com/read/28920416/effects-of-aflatoxin-b1-combined-with-ochratoxin-a-and-or-zearalenone-on-metabolism-immune-function-and-antioxidant-status-in-lactating-dairy-goats
#5
Shuai Huang, Nan Zheng, CaiYun Fan, Ming Cheng, Shang Wang, Adil Jabar, JiaQi Wang, JianBo Cheng
Objective: This experiment was conducted to investigate the effects of aflatoxin B1 (AFB1) alone or mixed with ochratoxin A (OTA) and/or zearalenone (ZEA) on the metabolism, immune function, and antioxidant status of dairy goats. Methods: Fifty lactating Laoshan dairy goats were randomly assigned to one of five treatment groups (n = 10) for 14 days. Goats were fed no additive (control) or administered with 50 μg AFB1/kg DM (AFB1), 50 μg AFB1/kg DM + 100 μg OTA/kg DM (AFB1+OTA), 50 μg AFB1/kg DM + 500 μg ZEA/kg DM (AFB1+ZEA), or 50 μg AFB1/kg DM + 100 μg OTA/kg DM + 500 μg ZEA/kg DM (AFB1+OTA+ZEA)...
September 18, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28919711/protective-role-of-quercetin-against-manganese-induced-injury-in-the-liver-kidney-and-lung-and-hematological-parameters-in-acute-and-subchronic-rat-models
#6
Entaz Bahar, Geum-Hwa Lee, Kashi Raj Bhattarai, Hwa-Young Lee, Hyun-Kyoung Kim, Mallikarjun Handigund, Min-Kyung Choi, Sun-Young Han, Han-Jung Chae, Hyonok Yoon
Manganese (Mn) is an important mineral element required in trace amounts for development of the human body, while over- or chronic-exposure can cause serious organ toxicity. The current study was designed to evaluate the protective role of quercetin (Qct) against Mn-induced toxicity in the liver, kidney, lung, and hematological parameters in acute and subchronic rat models. Male Sprague Dawley rats were divided into control, Mn (100 mg/kg for acute model and 15 mg/kg for subchronic model), and Mn + Qct (25 and 50 mg/kg) groups in both acute and subchronic models...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28919492/human-platelet-antigens-are-associated-with-febrile-non-hemolytic-transfusion-reactions
#7
Ding-Ping Chen, Ying-Hao Wen, Jang-Jih Lu, Ching-Ping Tseng, Wan-Ling Chen, Su-Wei Chang
BACKGROUND: Febrile non-hemolytic transfusion reaction (FNHTR) is the most common type of transfusion reactions, and it could be reduced by transfusing patients with leukocyte-poor blood products. However, FNHTR still occur in certain patients transfused with leukocyte-poor red blood cell (LPR) products. It is examined whether human platelet antigen (HPA) could be a potential membrane antigen that plays a role in FNHTR. METHODS: A total of 120 inpatient subjects who transfused with LPR (60 in FNHTR group, 60 in control group) were typed for HPA-2, HPA-3, and HPA-15 using sequence specific primer-polymerase chain reaction (SSP-PCR) and electrophoresis...
September 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28919343/characterizing-pathology-in-erythrocytes-using-morphological-and-biophysical-membrane-properties-relation-to-impaired-hemorheology-and-cardiovascular-function-in-rheumatoid-arthritis
#8
Oore-Ofe O Olumuyiwa-Akeredolu, Prashilla Soma, Antoinette V Buys, Legesse Kassa Debusho, Etheresia Pretorius
The inflammatory burden of the complex Rheumatoid Arthritis (RA) disease affects several organ-systems, including rheological properties of blood and its formed elements. Red blood cells (RBCs) are constantly exposed to circulating dysregulated inflammatory molecules that are co-transported within the vasculature; and their membranes may be particularly vulnerable to the accompanying oxidative stress. In the current study, we investigate biophysical and ultrastructural characteristics of RBCs obtained from a cohort of patients using atomic force microscopy (AFM), scanning electron microscopy (SEM) and confocal microscopy (CM)...
September 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28919069/impact-of-discontinuation-of-antiplatelet-therapy-prior-to-isolated-valve-and-combined-coronary-artery-bypass-graft-and-valve-procedures-on-short-and-intermediate-term-outcomes
#9
James Meneguzzi, Matthew Kilpin, Ying Yan Zhu, Atsuo Doi, Christopher Reid, Lavinia Tran, Philip Hayward, Julian Smith
BACKGROUND: A change in cardiac surgery practice over the past decade has seen an increase in urgent or inpatient referrals for surgery, with antiplatelet therapy often continued up until surgery. This study aims to identify the optimal timing for administration of aspirin to minimise risk of perioperative morbidity and mortality. METHODS: From a prospectively compiled database collected by the Australian and New Zealand Society of Cardiac and Thoracic Surgeons, we identified 8,294 patients undertaking combined CABG and valve or isolated valve procedures while discontinuing aspirin...
September 1, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28918633/axisymmetric-and-non-axisymmetric-oscillations-of-sessile-compound-droplets-in-open-digital-microfluidic-platform
#10
Shubhi Bansal, Prosenjit Sen
Manipulating droplets of biological fluids in Electrowetting on Dielectric (EWOD) based digital microfluidic platform is a significant challenge due to biofouling and surface contamination. This problem is often addressed by operating in an oil environment. We study an alternate configuration of sessile compound droplets having an aqueous core surrounded by a smaller oil shell. In contrast to conventional EWOD, open digital microfluidic platform enabled by the core-shell configuration will allow electrical, mechanical or optical probes to get unrestricted access to the droplet and thus enabling highly flexible and dynamically reconfigurable lab-on-chip systems...
September 18, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28917821/circulatory-cell-mediated-nanotherapeutic-approaches-in-disease-targeting
#11
Thierry Burnouf, Pierre-Alain Burnouf, Yu-Wen Wu, Er-Yuan Chuang, Long-Sheng Lu, Hadi Goubran
Circulating blood cells, and cell-derived microvesicles, are emerging as pragmatic delivery systems that can smartly complement the already existing nanotherapeutic platforms evaluated to treat or diagnose diseases. The valuable distinctive features of circulatory cells over synthetic nanocarriers encompass their biological origin which confers immune transparence, known biodegradability, high drug loading, relatively long half-life and a targeting capacity associated with their physiological surface functionality...
September 14, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28917024/decreased-percentage-of-peripheral-na%C3%A3-ve-t-cells-is-independently-associated-with-ischemic-stroke-in-patients-on-hemodialysis
#12
Rongyi Chen, Jiachang Hu, Fangfang Xiang, Xiao Tan, Bo Shen, Zhonghua Liu, Wenlv Lv, Xiaoqiang Ding, Xuesen Cao, Jianzhou Zou
PURPOSE: Cerebrovascular complications, including ischemic stroke, account for poor outcomes in patients on hemodialysis. T cell responses may be involved in the pathogenesis of ischemic stroke. We aimed to evaluate the role of naïve T cells in development of ischemic stroke in patients on hemodialysis. METHODS: In this cross-sectional study, 156 patients on hemodialysis in our blood purification center were included. These patients were divided into the ischemic stroke (IS) group (61 cases) and non-ischemic stroke (non-IS) group (95 cases) according to a new diagnosis after initiation of hemodialysis...
September 15, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28916576/withholding-feeds-and-transfusion-associated-necrotizing-enterocolitis-in-preterm-infants-a-systematic-review
#13
REVIEW
Bonny Jasani, Shripada Rao, Sanjay Patole
Limited evidence exists to support the withholding of feeds during packed red blood cell (PRBC) transfusion to reduce the incidence of transfusion-associated necrotizing enterocolitis (TANEC) in preterm infants. The aim of the manuscript was to systematically review studies reporting the effect of implementing a policy of withholding feeds on the incidence of TANEC in preterm infants. The following databases were searched for relevant studies published between the databases' inception and December 2016: PubMed, Embase, the Cochrane Central Register of Controlled Trials, the Cumulative Index of Nursing and Allied Health Literature, and Pediatric Academic Societies Abstract Archive...
September 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28916547/automated-measurement-of-microvascular-function-reveals-dysfunction-in-systemic-sclerosis-a-cross-sectional-study
#14
Daniel R Machin, Phillip E Gates, Hans Vink, Tracy M Frech, Anthony J Donato
OBJECTIVE: The aim of our study was to determine whether an automated capture and analysis system could detect differences in structure and function of sublingual microvessels in patients with systemic sclerosis (SSc) compared to healthy controls. METHODS: Intravital microscopy of the sublingual microcirculation was automatically captured and analyzed in 40 patients with SSc and 10 age-matched healthy controls. RESULTS: Total and perfused microvascular density were lower in patients with SSc compared with controls (total microvascular density: 2471 ± 134 μm/mm(2) vs 3067 ± 197 μm/mm(2), p = 0...
September 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28916524/new-methods-to-analyze-b-cell-immune-responses-to-thymus-dependent-antigen-sheep-red-blood-cells
#15
Ellen J McAllister, John R Apgar, Charlotte R Leung, Robert C Rickert, Julia Jellusova
B cells contribute critically to an effective immune response by producing Ag-specific Abs. During the immune response to so-called "thymus-dependent Ags," activated B cells seek T cell help and form germinal centers. In contrast, thymus-independent Ags generally do not induce germinal center formation. In the germinal center, B cells undergo somatic hypermutation, affinity-based clonal expansion, and differentiation to produce plasma cells and memory B cells. Valuable insight into these processes has been gained by using model hapten-carrier complexes or SRBCs...
September 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28916286/toxicology-studies-of-primycin-sulphate-using-a-three-dimensional-3d-in-vitro-human-liver-aggregate-model
#16
Ágota Pénzes, Elhusseiny Mohamed Mahmud Abdelwahab, Judit Rapp, Zsanett A Péteri, Judit Bovári-Biri, Csaba Fekete, György Miskei, Krisztián Kvell, Judit E Pongrácz
Primycin-sulphate is a highly effective compound against Gram (G) positive bacteria. It has a potentially synergistic effect with vancomycin and statins which makes primycin-sulphate a potentially very effective preparation. Primycin-sulphate is currently used exclusively in topical preparations such as in in vitro animal hepatocyte and neuromuscular junction studies (in mice, rats, snakes, frogs) as well as in in vitro human red blood cell experiments. During these studies, the use of primycin-sulphate resulted in reduced cellular membrane integrity and modified ion channel activity...
September 12, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28916240/association-between-red-blood-cell-distribution-width-and-all-cause-mortality-in-chronic-kidney-disease-patients-a-systematic-review-and-meta-analysis
#17
Tao Zhang, Jing Li, Yan Lin, Hongtao Yang, Shili Cao
BACKGROUND: Considering results among previous studies regarding the relationship of red blood cell distribution width (RDW) and all-cause mortality in chronic kidney disease (CKD) patients, we aimed to perform a comprehensive meta-analysis to evaluate the potential association between RDW and all-cause mortality in CKD patients. METHODS: We conducted a systematic literature using electronic databases (PubMed, Ovid, Embase and Web of Science) to identify the studies reporting the association between RDW and all-cause mortality in CKD patients...
September 12, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/28915231/postnatal-polyunsaturated-fatty-acids-associated-with-larger-preterm-brain-tissue-volumes-and-better-outcomes
#18
Daphne Kamino, Colin Studholme, Mengyuan Liu, Vann Chau, Steven P Miller, Anne Synnes, Elizabeth E Rogers, A James Barkovich, Donna M Ferriero, Rollin Brant, Emily W Y Tam
BACKGROUND: Human studies investigating the link between postnatal polyunsaturated fatty acids and preterm brain growth are limited, despite emerging evidence of potential effects on outcomes. METHODS: Sixty preterm neonates <32 weeks gestational age with MRI scanning at near-birth and near-term age were assessed for brain tissue volumes including cortical grey matter, white matter, deep grey matter, cerebellum, brainstem and ventricular cerebrospinal fluid. Red blood cell fatty acid content was evaluated within 1 week of each MRI scan...
September 15, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28915220/predicting-the-severity-of-acute-pancreatitis-with-red-cell-distribution-width-at-early-admission-stage
#19
Ting Zhang, Hua Liu, Dongyan Wang, Pengfei Zong, Changfeng Guo, Feng Wang, Deqing Wu, Maochun Tang, Jianjun Zhou, Yan Zhao
Red cell distribution width (RDW) has been proposed as an early prognosis marker with increased mortality in variety of pathophysiological conditions. We hypothesized that elevated RDW could be used in judging the severity of acute pancreatitis (AP). We retrospectively and prospectively studied 545 and 72 AP patients, who were admitted to the Shanghai Tenth People's Hospital of Tongji University, respectively. Compared with mild acute pancreatitis, significantly higher RDW was observed in patients with moderately severe acute pancreatitis and sever acute pancreatitis (14...
September 14, 2017: Shock
https://www.readbyqxmd.com/read/28915218/endotoxemia-results-in-trapping-of-transfused-red-blood-cells-in-lungs-with-associated-lung-injury
#20
Marleen Straat, Anita Tuip, Thomas R L Klei, Boukje M Beuger, Joris J T H Roelofs, Robin van Bruggen, Nicole P Juffermans
BACKGROUND: Red blood cell (RBC) transfusion is associated with organ failure, in particular in the critically ill. We hypothesized that endotoxemia contributes to increased trapping of RBCs in organs. Furthermore, we hypothesized that this effect is more pronounced following transfusion of stored RBCs compared with fresh RBCs. METHODS: Adult male Sprague-Dawley rats were randomized to receive injection with lipopolysaccharide from E coli or vehicle and transfusion with fresh or stored biotinylated RBCs...
October 2017: Shock
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