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https://www.readbyqxmd.com/read/28434006/unbiased-quantification-of-subplate-neuron-loss-following-neonatal-hypoxia-ischemia-in-a-rat-model
#1
Alexandra Mikhailova, Naveena Sunkara, Patrick S McQuillen
BACKGROUND: Cellular targets of neonatal hypoxia-ischemia (HI) include both oligodendrocyte and neuronal lineages with differences in the patterns of vulnerable cells depending upon the developmental stage at which the injury occurs. Injury to the developing white matter is a characteristic feature of human preterm brain injury. Data are accumulating, however, for neuronal injury in the developing cerebral cortex. In the most widely used rodent model of preterm HI brain injury, conflicting data have been reported regarding the sensitivity of subplate neurons to early neonatal HI, with some reports of selective vulnerability and others that find no increased loss of subplate neurons in comparison with other cortical layers...
April 22, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28433996/factor-xii-as-a-risk-marker-for-hemorrhagic-stroke-a-prospective-cohort-study
#2
Kristina Johansson, Jan-Håkan Jansson, Lars Johansson, Ingemar Bylesjö, Torbjörn K Nilsson, Mats Eliasson, Stefan Söderberg, Marcus Lind
BACKGROUND: Coagulation factor XII (FXII) is involved in pathological thrombus formation and is a suggested target of anticoagulants. It is unclear whether FXII levels are correlated with cardiovascular risk factors and whether they are associated with myocardial infarction or ischemic or hemorrhagic stroke. The aim of this study was to investigate the correlation between FXII and cardiovascular risk factors in the general population. We also aimed to study the associations between FXII levels and future myocardial infarction and ischemic and hemorrhagic stroke...
April 21, 2017: Cerebrovascular Diseases Extra
https://www.readbyqxmd.com/read/28433920/proteomic-analysis-of-sockeye-salmon-serum-as-a-tool-for-biomarker-discovery-and-new-insight-into-the-sublethal-toxicity-of-diluted-bitumen
#3
Sarah L Alderman, Laura A Dindia, Christopher J Kennedy, Anthony P Farrell, Todd E Gillis
Pipelines carrying diluted bitumen (dilbit) from Canada's oil sands traverse North America, including the freshwater habitat of Pacific salmon, posing a risk of environmental release and aquatic exposure. Swimming performance is impacted in juvenile sockeye (Oncorhynchus nerka) exposed to dilbit; therefore biomarkers of dilbit exposure will be valuable for monitoring at-risk salmon stocks. This study characterized changes in the serum proteome of sockeye exposed to a sub-lethal and environmentally relevant concentration of dilbit using isobaric tags for relative and absolute quantitation (iTRAQ), and included a range of experimental conditions to permit identification of biomarkers that are robust across time (1 and 4wk) and exercise level (at rest and following a swim test)...
April 12, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28433556/bolus-injections-of-novel-thrombogenic-site-targeted-fusion-proteins-comprising-annexin-v-and-kunitz-protease-inhibitors-attenuate-intimal-hyperplasia-after-balloon-angioplasty
#4
Yung-Hsin Yeh, Shang-Hung Chang, Shin-Yu Chen, Chih-Jen Wen, Fu-Chan Wei, Rui Tang, Sam Achilefu, Tze-Chein Wun, Wei-Jan Chen
BACKGROUND: Systemic administrations of conventional antithrombotics reduce neointima formation after angioplasty in experimental animals. However, clinical translation of these results has not been successful due to high risk for bleeding. OBJECTIVES: We sought to determine whether novel annexin-V (ANV)-Kunitz protease inhibitor fusion proteins, TAP-ANV and ANV-6L15, can specifically target to vascular injury site and limit neointima formation without inducing systemic hypo-coagulation in a rat carotid artery balloon angioplasty injury model...
April 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28433164/characterization-and-application-of-cellulose-acetate-synthesized-from-sugarcane-bagasse
#5
R G Candido, G G Godoy, Adilson R Gonçalves
The synthesis and application of cellulose acetate (CA) from sugarcane bagasse were investigated. Firstly, cellulose was extracted by a sequential treatment with H2SO4 (10% v/v), NaOH (5% w/v), EDTA (0.5% w/V), and H2O2 (5% v/v), and characterized by X-ray diffraction (DRX). After the acetylation of the extracted cellulose, CA was characterized using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA), and was applied in the membrane production...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28433155/a-highly-regular-fucosylated-chondroitin-sulfate-from-the-sea-cucumber-massinium-magnum-structure-and-effects-on-coagulation
#6
Nadezhda E Ustyuzhanina, Maria I Bilan, Andrey S Dmitrenok, Elizaveta Yu Borodina, Valentin A Stonik, Nikolay E Nifantiev, Anatolii I Usov
A fucosylated chondroitin sulfate MM was isolated from the sea cucumber Massinium magnum. Structure of this polysaccharide was determined using chemical and NMR spectroscopic methods. The backbone of MM was shown to consist mainly of chondroitin sulfate E units with a small portion (about 10%) of chondroitin sulfate A fragments. Practically one type of branches Fuc3S4S attached to O-3 of GlcA residues was found in the polysaccharide molecules. The main repeating units of MM are →4)-[α-l-Fuc3S4S-(1→3)]-β-d-GlcA-(1→3)-β-d-GalNAc4S6S-(1→, whereas the minor repeating units are →4)-[α-l-Fuc3S4S-(1→3)]-β-d-GlcA-(1→3)-β-d-GalNAc4S-(1→...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28432841/comparison-of-pneumatic-tube-system-with-manual-transport-for-routine-chemistry-hematology-coagulation-and-blood-gas-tests
#7
Alex Pupek, Beverly Matthewson, Erin Whitman, Rachel Fullarton, Yu Chen
BACKGROUND: The pneumatic tube system (PTS) is commonly used in modern clinical laboratories to provide quick specimen delivery. However, its impact on sample integrity and laboratory testing results are still debatable. In addition, each PTS installation and configuration is unique to its institution. We sought to validate our Swisslog PTS by comparing routine chemistry, hematology, coagulation and blood gas test results and sample integrity indices between duplicate samples transported either manually or by PTS...
April 22, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28432675/transoral-thyroidectomy-advantages-and-limitations
#8
G Dionigi, R P Tufano, J Russell, H Y Kim, E Piantanida, A Anuwong
In this opinion paper of the Journal of Endocrinological Investigation, leading experts in the field report on their current clinical experience with a novel approach for thyroid gland surgery, namely, "transoral thyroidectomy" (TOT). This feasible and novel surgical procedure does not require visible incisions and is, therefore, a truly scarless surgery. Patients meeting the following criteria can be considered as candidates for TOT: (a) an ultrasonographically (US) estimated thyroid diameter ≤10 cm; (b) US-estimated gland volume ≤45 mL; (c) nodule size ≤50 mm; (d) presence of a benign tumor such as a thyroid cyst or a single- or multi-nodular goiter; (e) Bethesda 3 and/or 4 category and (f) papillary microcarcinoma without the evidence of metastasis...
April 21, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28432618/the-identification-of-key-genes-and-pathways-in-hepatocellular-carcinoma-by-bioinformatics-analysis-of-high-throughput-data
#9
Chaoyang Zhang, Li Peng, Yaqin Zhang, Zhaoyang Liu, Wenling Li, Shilian Chen, Guancheng Li
Liver cancer is a serious threat to public health and has fairly complicated pathogenesis. Therefore, the identification of key genes and pathways is of much importance for clarifying molecular mechanism of hepatocellular carcinoma (HCC) initiation and progression. HCC-associated gene expression dataset was downloaded from Gene Expression Omnibus database. Statistical software R was used for significance analysis of differentially expressed genes (DEGs) between liver cancer samples and normal samples. Gene Ontology (GO) term enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, based on R software, were applied for the identification of pathways in which DEGs significantly enriched...
June 2017: Medical Oncology
https://www.readbyqxmd.com/read/28432428/tranexamic-acid-for-treatment-and-prophylaxis-of-bleeding-and-hyperfibrinolysis
#10
Ingrid Pabinger, Dietmar Fries, Herbert Schöchl, Werner Streif, Wolfgang Toller
Uncontrolled massive bleeding with subsequent derangement of the coagulation system is a major challenge in the management of both surgical and seriously injured patients. Under physiological conditions activators and inhibitors of coagulation regulate the sensitive balance between clot formation and fibrinolysis. In some cases, excessive and diffuse bleeding is caused by systemic activation of fibrinolysis, i. e. hyperfibrinolysis (HF). Uncontrolled HF is associated with a high mortality. Polytrauma patients and those undergoing surgical procedures involving organs rich in plasminogen proactivators (e...
April 21, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28432098/inhibitory-effect-of-coumarin-on-syntrophic-fatty-acid-oxidizing-and-methanogenic-cultures-and-biogas-reactor-microbiomes
#11
Denny Popp, Caroline M Plugge, Sabine Kleinsteuber, Hauke Harms, Heike Sträuber
Coumarins are widely found in plants as natural constituents having antimicrobial activity. When considering plants rich in coumarins for biogas production, adverse effects on microorganisms driving the anaerobic digestion process are expected. Furthermore, coumarin derivatives like warfarin, which are used as anti-coagulating medicine, are found in wastewater affecting its treatment. Coumarin as the structure common to all coumarins inhibits the anaerobic digestion process. However, details of this inhibition are still elusive...
April 21, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28431948/serum-peptides-as-putative-modulators-of-inflammation-in-psoriasis
#12
Tetsuhiko Matsuura, Masaaki Sato, Kouhei Nagai, Toshiyuki Sato, Mitsumi Arito, Kazuki Omoteyama, Naoya Suematsu, Kazuki Okamoto, Tomohiro Kato, Yoshinao Soma, Manae S Kurokawa
BACKGROUND: Psoriasis is a refractory inflammatory disease, however, its pathophysiology is still not fully understood. OBJECTIVE: We tried to identify novel serum peptides associated with the pathophysiology of psoriasis. METHODS: Serum peptides from 24 patients with psoriasis vulgaris (PV), 10 patients with psoriatic arthritis (PsA), 14 patients with atopic dermatitis (AD), and 23 healthy control (HC) subjects were analyzed by mass spectrometry...
March 27, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28431870/the-effect-of-hypertonic-saline-and-mannitol-on-coagulation-in-moderate-traumatic-brain-injury-patients
#13
Haifeng Wang, Hongshi Cao, Xiaohong Zhang, Liang Ge, Li Bie
BACKGROUND: Hyperosmolar therapy, using either hypertonic saline (HTS) or mannitol (MT), is considered the treatment of choice for intracranial hypertension, a disorder characterized by high intracranial pressure (ICP). However, hyperosmolar agents have been postulated to impair coagulation and platelet function. The aim of this study was to identify whether HTS and MT could affect coagulation in moderate traumatic brain injury (TBI) patients. METHODS: In this prospective and randomized double-blind study, we included adult patients with moderate TBI...
April 14, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28431445/-near-drowning-with-good-outcome-after-ecmo-therapy-and-therapeutic-hypothermia-despite-20-minutes-of-anoxia-and-16-hours-of-hypoxia
#14
Peter Stachon, Johannes Kalbhenn, Stephan Walterspacher, Christoph Bode, Dawid Staudacher
Introduction Drowning with submersion over 10 minutes is associated with a high mortality. Here, we present a case, in which a good neurological outcome was achieved after interdisciplinary, intensive care therapy despite submersion of 20 minutes followed by 16 hours of hypoxia. History A 19 year old man drowned in fresh-water. After 20 minutes submersion he was localized and salvaged from 8 meters depth and primarily resuscitated successfully after 10 minutes. Within the next hour, there condition worsened by respiratory deterioration due to a massive capillary leak syndrome in addition to a disseminated intravascular coagulation...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28431350/characteristics-and-components-of-poly-aluminum-chloride-coagulants-that-enhance-arsenate-removal-by-coagulation-detailed-analysis-of-aluminum-species
#15
Yoshihiko Matsui, Nobutaka Shirasaki, Takuro Yamaguchi, Kenta Kondo, Kaori Machida, Taiga Fukuura, Taku Matsushita
We evaluated 51 poly-aluminum chloride (PACl) coagulants to determine the coagulant characteristics that were responsible for effective arsenate removal from contaminated river water by means of experiments involving coagulation, settling, and microfiltration. Some of the high-basicity PACls exhibited high arsenate removal percentages, particularly under alkaline conditions, and we investigated various relevant properties and characteristics of these high-basicity PACls. Effective arsenate removal was correlated with the content of polymeric and colloidal aluminum species (Alb and Alc) in the PACls but was not well correlated with colloid charge or zeta potential...
April 15, 2017: Water Research
https://www.readbyqxmd.com/read/28430802/the-quality-changes-in-fresh-frozen-plasma-of-the-blood-donors-at-high-altitude
#16
Zongkui Wang, Hua Liu, Miaomiao Dou, Xi Du, Jijun Hu, Na Su, Ya Wang, Rong Zhang, Changqing Li
OBJECTIVE: According to the international guidelines, fresh frozen plasma (FFP) is unanimously used to treat coagulation disorders. The quality of FFP is critical for the clinical transfusion. Till now, few studies have integratedly evaluated the differences of FFP from blood donors at between high altitude (HA) and low altitude (LA). Besides, there were no special quality standards for HA FFP in China. MATERIALS AND METHODS: Up to 41 HA (Lhasa, 3700 m) and 46 LA (Chengdu, 500 m) blood donors were included in our study to estimate the differences of FFP from HA and LA blood donors...
2017: PloS One
https://www.readbyqxmd.com/read/28430386/peptidome-analysis-of-human-serum-from-normal-and-preeclamptic-pregnancies
#17
Xiaonan Dai, Xuejing Song, Can Rui, Li Meng, Xuan Xue, Hongjuan Ding, Rong Shen, Jun Li, Jingyun Li, Yuanqing Lu, Wei Long
Preeclampsia is a kind of disease that severely harms the health of pregnant women and infants. To better understand the molecular mechanisms involved in preeclampsia, we used liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) to construct a comparative peptidomic profiling of human serum between normal and preeclamptic pregnancies. A total of 201 peptides were confidently identified, with 21 up-regulated and 3 down-regulated. Further analysis indicated that these differentially expressed peptides correlate with enzyme regulator activity, biological regulation, and coagulation cascades occurring during pathological changes of preeclampsia...
April 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28430304/pre-ecmo-coagulopathy-does-not-increase-the-occurrence-of-hemorrhage-during-extracorporeal-support
#18
Pilar Anton-Martin, Lakshmi Raman, Nikhil Thatte, Jefferson Tweed, Vinai Modem, Janna Journeycake
INTRODUCTION AND METHODS: Observational retrospective cohort study to evaluate the association between precannulation coagulopathy and the occurrence of hemorrhage during extracorporeal membrane oxygenation (ECMO) in neonatal and pediatric patients at a tertiary children's hospital. RESULTS: Of 241 patients supported with ECMO between January 2009 and December 2014, 175 (72.6%) had precannulation coagulation laboratory data and were included in the study. Of the eligible patients, 84 (48%) were identified as coagulopathic and 91 (52%) were noncoagulopathic...
April 20, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28430136/therapeutic-effect-of-low-doses-of-acenocoumarol-in-the-course-of-ischemia-reperfusion-induced-acute-pancreatitis-in-rats
#19
Zygmunt Warzecha, Paweł Sendur, Piotr Ceranowicz, Jakub Cieszkowski, Marcin Dembiński, Ryszard Sendur, Joanna Bonior, Jolanta Jaworek, Tadeusz Ambroży, Rafał Olszanecki, Beata Kuśnierz-Cabala, Kaczmarzyk Tomasz, Romana Tomaszewska, Artur Dembiński
Intravascular activation of coagulation is observed in acute pancreatitis and is related to the severity of this inflammation. The aim of our study was to evaluate the impact of acenocoumarol therapy on the course of acute pancreatitis induced in male rats by pancreatic ischemia followed by reperfusion. Acenocoumarol at a dose of 50, 100, or 150 µg/kg/dose was administered intragastrically once a day, starting the first dose 24 h after the initiation of pancreatic reperfusion. RESULTS: Histological examination showed that treatment with acenocoumarol reduces pancreatic edema, necrosis, and hemorrhages in rats with pancreatitis...
April 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28429220/antithrombin-activity-of-erythrocyte-microvesicles
#20
G Ya Levin, E G Sukhareva
Coagulation and optical (based on chromogenic substrate) methods were employed to examine antithrombin activity of erythrocytes and erythrocyte-derived microvesicles isolated days 7, 14, 21, and 28 on erythrocyte storage. The erythrocyte-derived microvesicles decelerated fibrin clot formation from fibrinogen in the presence of exogenous thrombin both with and without heparin. Microvesicles reduced optical density of chromogenic substrate. These data suggest that erythrocyte-derived microvesicles display a prominent antithrombin activity, which significantly increases during erythrocyte storage...
April 21, 2017: Bulletin of Experimental Biology and Medicine
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