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https://www.readbyqxmd.com/read/28100813/coral-calcifying-fluid-ph-is-modulated-by-seawater-carbonate-chemistry-not-solely-seawater-ph
#1
S Comeau, E Tambutté, R C Carpenter, P J Edmunds, N R Evensen, D Allemand, C Ferrier-Pagès, S Tambutté, A A Venn
Reef coral calcification depends on regulation of pH in the internal calcifying fluid (CF) in which the coral skeleton forms. However, little is known about calcifying fluid pH (pHCF) regulation, despite its importance in determining the response of corals to ocean acidification. Here, we investigate pHCF in the coral Stylophora pistillata in seawater maintained at constant pH with manipulated carbonate chemistry to alter dissolved inorganic carbon (DIC) concentration, and therefore total alkalinity (AT). We also investigate the intracellular pH of calcifying cells, photosynthesis, respiration and calcification rates under the same conditions...
January 25, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28093623/what-factor-within-the-japanese-association-for-acute-medicine-jaam-disseminated-intravascular-coagulation-dic-criteria-is-most-strongly-correlated-with-trauma-induced-dic-a-retrospective-study-using-thromboelastometry-in-a-single-center-in-japan
#2
H Koami, Y Sakamoto, K C Yamada, T Matsuda, J Nishi, K Nakayama, R Sakurai, M Ohta, H Imahase, M Yahata, M Umeka, T Miike, F Nagashima, T Iwamura, S Inoue
PURPOSE: The diagnostic criteria for disseminated intravascular coagulation (DIC) established by the Japanese Association for Acute Medicine (JAAM) is able to diagnose DIC accurately and promptly. The aim of this retrospective study is to evaluate the degree of association between each parameter of JAAM DIC criteria and the diagnosis of trauma induced DIC (T-DIC) utilizing thromboelastometry (ROTEM). METHODS: Trauma patients transported to our hospital with ROTEM performed in the emergency department between January 2013 and December 2015 were enrolled in this study...
January 16, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28088033/a-bayesian-spatial-random-parameters-tobit-model-for-analyzing-crash-rates-on-roadway-segments
#3
Qiang Zeng, Huiying Wen, Helai Huang, Mohamed Abdel-Aty
This study develops a Bayesian spatial random parameters Tobit model to analyze crash rates on road segments, in which both spatial correlation between adjacent sites and unobserved heterogeneity across observations are accounted for. The crash-rate data for a three-year period on road segments within a road network in Florida, are collected to compare the performance of the proposed model with that of a (fixed parameters) Tobit model and a spatial (fixed parameters) Tobit model in the Bayesian context. Significant spatial effect is found in both spatial models and the results of Deviance Information Criteria (DIC) show that the inclusion of spatial correlation in the Tobit regression considerably improves model fit, which indicates the reasonableness of considering cross-segment spatial correlation...
January 11, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28081568/non-lethal-endotoxin-injection-a-rat-model-of-hypercoagulability
#4
Marjory B Brooks, James R Turk, Abraham Guerrero, Padma K Narayanan, John P Nolan, Elizabeth G Besteman, Dennis W Wilson, Roberta A Thomas, Cindy E Fishman, Karol L Thompson, Heidrun Ellinger-Ziegelbauer, Jennifer B Pierson, April Paulman, Alan Y Chiang, Albert E Schultze
Systemic inflammation co-activates coagulation, which unchecked culminates in a lethal syndrome of multi-organ microvascular thrombosis known as disseminated intravascular coagulation (DIC). We studied an endotoxin-induced inflammatory state in rats to identify biomarkers of hemostatic imbalance favoring hypercoagulability. Intraperitoneal injection of LPS at 15 mg/kg body weight resulted in peripheral leukopenia and widespread neutrophilic sequestration characteristic of an acute systemic inflammatory response...
2017: PloS One
https://www.readbyqxmd.com/read/28077394/metal-backed-versus-all-polyethylene-unicompartmental-knee-arthroplasty-proximal-tibial-strain-in-an-experimentally-validated-finite-element-model
#5
C E H Scott, M J Eaton, R W Nutton, F A Wade, S L Evans, P Pankaj
OBJECTIVES: Up to 40% of unicompartmental knee arthroplasty (UKA) revisions are performed for unexplained pain which may be caused by elevated proximal tibial bone strain. This study investigates the effect of tibial component metal backing and polyethylene thickness on bone strain in a cemented fixed-bearing medial UKA using a finite element model (FEM) validated experimentally by digital image correlation (DIC) and acoustic emission (AE). MATERIALS AND METHODS: A total of ten composite tibias implanted with all-polyethylene (AP) and metal-backed (MB) tibial components were loaded to 2500 N...
January 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28074413/procoagulant-activity-of-extracellular-vesicles-as-a-potential-biomarker-for-risk-of-thrombosis-and-dic-in-patients-with-acute-leukaemia
#6
Gheldof Damien, Haguet Hélène, Dogné Jean-Michel, Bouvy Céline, Graux Carlos, George Fabienne, Sonet Anne, Chatelain Christian, Chatelain Bernard, Mullier François
Haemostatic complication is common for patients with hematologic malignancies. Recent studies suggest that the procoagulant activity (PCA) of extracellular vesicles (EV) may play a major role in venous thromboembolism and disseminated intravascular coagulation (DIC) in acute leukaemia. To study the impact of EVs from leukaemic patients on thrombin generation and to assess EV-PCA as a potential biomarker for thrombotic complications in patients with acute leukaemia. Blood samples from a cohort of patients with newly diagnosed acute leukaemia were obtained before treatment (D-0), 3 and 7 days after treatment (D-3 and D-7)...
January 10, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28068928/newly-recognized-cerebral-infarctions-on-postmortem-imaging-a-report-of-three-cases-with-systemic-infectious-disease
#7
Sakon Noriki, Kazuyuki Kinoshita, Kunihiro Inai, Toyohiko Sakai, Hirohiko Kimura, Takahiro Yamauchi, Masayuki Iwano, Hironobu Naiki
BACKGROUND: Postmortem imaging (PMI) refers to the imaging of cadavers by computed tomography (CT) and/or magnetic resonance imaging (MRI). Three cases of cerebral infarctions that were not found during life but were newly recognized on PMI and were associated with severe systemic infections are presented. CASE PRESENTATIONS: An 81-year-old woman with a pacemaker and slightly impaired liver function presented with fever. Imaging suggested interstitial pneumonia and an iliopsoas abscess, and blood tests showed liver dysfunction and disseminated intravascular coagulation (DIC)...
January 10, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28065545/geochemical-isotopic-composition-in-the-loess-plateau-and-corresponding-source-analyses-a-case-study-of-china-s-yangjuangou-catchment
#8
Yafeng Wang, Liding Chen, Yang Gao, Shibo Chen, Weiliang Chen, Zhuo Hao, Junjie Jia, Ning Han
Isotopic fractionation technology is widely used in identifying sources and the speciation of geochemical isotopic elements. With the increase in human activity, geochemical element transport by soil erosion has become the most critical environmental problem in the Loess Plateau, so tracing the geochemical element source would help in the identification and management of local soil erosion. In this study, we investigated the spatial distribution of carbon (C), nitrogen (N), oxygen (O), and hydrogen (H) isotopes in water and then further analyzed (13)C and (15)N in soil and vegetation to better understand the C and N sources and their biogeochemical cycling function in the Loess Plateau...
January 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28060300/kinematic-analysis-of-cell-division-and-expansion-quantifying-the-cellular-basis-of-growth-and-sampling-developmental-zones-in-zea-mays-leaves
#9
Katrien Sprangers, Viktoriya Avramova, Gerrit T S Beemster
Growth analyses are often used in plant science to investigate contrasting genotypes and the effect of environmental conditions. The cellular aspect of these analyses is of crucial importance, because growth is driven by cell division and cell elongation. Kinematic analysis represents a methodology to quantify these two processes. Moreover, this technique is easy to use in non-specialized laboratories. Here, we present a protocol for performing a kinematic analysis in monocotyledonous maize (Zea mays) leaves...
December 2, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28059290/self-calibration-single-lens-3d-video-extensometer-for-high-accuracy-and-real-time-strain-measurement
#10
Xinxing Shao, Mohammed Mokhtar Eisa, Zhenning Chen, Shuai Dong, Xiaoyuan He
The accuracy of strain measurement using a common optical extensometer with two-dimensional (2D) digital image correlation (DIC) is not sufficient for experimental applications due to the effect of out-of-plane motion. Although three-dimensional (3D) DIC can measure all three components of displacement without introducing in-plane displacement errors, 3D-DIC requires the stringent synchronization between two digital cameras and requires complicated system calibration of binocular stereovision, which makes the measurement rather inconvenient...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28041822/effect-of-leukapheresis-on-blood-coagulation-in-patients-with-hyperleukocytic-acute-myeloid-leukemia
#11
Andry Van de Louw
INTRODUCTION: Leukapheresis has been proposed to reduce white blood cell (WBC) count in hyperleukocytic acute myeloid leukemia (AML). However, no survival benefit has been proven and leukapheresis can potentially affect coagulation and worsen bleeding and disseminated intravascular coagulation (DIC). We analyzed the effect of leukapheresis on coagulation tests in a cohort of hyperleukocytic AML patients. METHODS: Retrospective chart review of hyperleukocytic AML patients who underwent leukapheresis between 2003 and 2014...
December 29, 2016: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28039291/can-recombinant-human-thrombomodulin-increase-survival-among-patients-with-severe-septic-induced-disseminated-intravascular-coagulation-a-single-centre-open-label-randomised-controlled-trial
#12
Akiyoshi Hagiwara, Noriko Tanaka, Tatsuki Uemura, Wataru Matsuda, Akio Kimura
OBJECTIVE: To determine whether treatment with recombinant human thrombomodulin (rhTM) increases survival among patients with severe septic-induced disseminated intravascular coagulation (DIC). DESIGN: Single-centre, open-label, randomised controlled trial. SETTING: Single tertiary hospital. PARTICIPANT: 92 patients with severe septic-induced DIC. INTERVENTIONS: Patients with DIC scores ≥4, as defined by the Japanese Association of Acute Medicine, were diagnosed with DIC...
December 30, 2016: BMJ Open
https://www.readbyqxmd.com/read/28033504/reduced-adamts-13-level-negatively-correlates-with-inflammation-factors-in-plasma-of-acute-myeloid-leukemia-patients
#13
Chen Liu, Lei Zhao, Jingzhong Zhao, Qinzhu Xu, Ying Song, Hui Wang
ADAMTS-13 is crucial for maintaining the normal size of vWF. Besides thrombotic thrombocytopenic purpura (TTP), decreased ADAMTS-13 had also been reported in patients with malignancy. However, the knowledge of expression and potential role of ADAMTS-13 in hematological malignancies is still limited. We measured and compared ADAMTS-13 levels in the plasma of 82 acute myeloid leukemia (AML) patients and 34 healthy controls and found that AML patients possessed lower ADAMTS-13 than controls. AML patients with infections possessed lower level of ADAMTS-13 than patients without infections and ADAMTS-13 levels were negatively correlated with C-reactive protein(CRP), IL-6, TNFα and IL-1β...
December 20, 2016: Leukemia Research
https://www.readbyqxmd.com/read/28029716/inactivation-of-human-coagulation-factor-x-by-a-protease-of-the-pathogen-capnocytophaga-canimorsus
#14
K Hack, F Renzi, E Hess, F Lauber, J Douxfils, J M Dogné, G R Cornelis
BACKGROUND: Capnocytophaga canimorsus is a Gram-negative bacterium, which belongs to the oral flora of dogs and causes fulminant sepsis in humans who have been bitten, licked or scratched. In patients, bleeding abnormalities, such as petechiae, purpura fulminans or disseminated intravascular coagulation (DIC) occur frequently. OBJECTIVE: We investigated whether C. canimorsus could actively contribute to these bleeding abnormalities. METHODS: Calibrated automated thrombogram and clotting time assays were performed to assess the anticoagulant activity of C...
December 28, 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28018509/helicobacter-pylori-eradication-therapy-for-thrombocytopenia-after-surgery-for-abdominal-aortic-aneurysm-with-disseminated-intravascular-coagulation
#15
Takashi Ando, Daichi Akiyama, Hiroshi Okada, Kazuma Date, Hiroshi Furukawa, Makoto Takeda
Abdominal aortic aneurysm (AAA) is known to be rarely accompanied by disseminated intravascular coagulation (DIC). We report a case of AAA with DIC. An 81-year-old man with abdominal pain referred to our hospital. Computed tomography demonstrated an AAA (maximum diameter: 90 mm). The patient underwent a laparotomy, and an abdominal aorta replacement was performed. At the 3-month follow-up, the patient underwent Helicobacter pylori eradication treatment for 1 week. After treatment, the platelet count dramatically increased...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/28018508/fatal-hemorrhage-from-kidney-after-endovascular-repair-for-chronic-type-b-dissection-complicated-with-disseminated-intravascular-coagulation
#16
Takashi Yamauchi, Suguru Kubota, Kosei Hasegawa, Shinya Shirai
We report lethal hemorrhage from the kidney after thoracic endovascular repair for chronic type B dissection complicated by disseminated intravascular coagulation (DIC). A 70-year-old woman underwent thoracic endovascular repair to treat chronic DIC. Two weeks after surgery, refractory shock suddenly occurred and computed tomography showed a massive hematoma around the left kidney. Emergent renal artery angiography showed multiple bleeding points in the renal cortex. Immediate embolization of the renal artery was performed and her hemodynamic condition recovered...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/28018300/viral-lysis-of-photosynthesizing-microbes-as-a-mechanism-for-calcium-carbonate-nucleation-in-seawater
#17
John T Lisle, Lisa L Robbins
Removal of carbon through the precipitation and burial of calcium carbonate in marine sediments constitutes over 70% of the total carbon on Earth and is partitioned between coastal and pelagic zones. The precipitation of authigenic calcium carbonate in seawater, however, has been hotly debated because despite being in a supersaturated state, there is an absence of persistent precipitation. One of the explanations for this paradox is the geochemical conditions in seawater cannot overcome the activation energy barrier for the first step in any precipitation reaction; nucleation...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28013226/disseminated-intravascular-coagulation
#18
Benjamin M Boral, Dennis J Williams, Leonard I Boral
OBJECTIVES: To provide a review of the definition, pathophysiology, differential diagnosis, and treatment of disseminated intravascular coagulation (DIC). METHODS: A case scenario and a review of the literature related to the pertinent facts concerning DIC are provided. RESULTS: DIC is a systemic pathophysiologic process and not a single disease entity, resulting from an overwhelming activation of coagulation that consumes platelets and coagulation factors and causes microvascular fibrin thrombi, which can result in multiorgan dysfunction syndrome from tissue ischemia...
December 24, 2016: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28011507/platinum-based-doublet-chemotherapy-for-advanced-gastric-cancer-with-disseminated-intravascular-coagulation
#19
Keiji Sugiyama, Yukiya Narita, Shigenori Kadowaki, Takashi Ura, Masahiro Tajika, Kei Muro
BACKGROUND: Disseminated intravascular coagulation (DIC) is a rare complication of advanced gastric cancer (AGC). Despite reports of the efficacy of chemotherapy for AGC with DIC, little is known of platinum-based doublet therapy. PATIENTS AND METHODS: We conducted a single-institute, retrospective chart review of 500 consecutive chemotherapy-naïve patients with advanced gastric adenocarcinoma (recurrent or metastatic) from November 2010 to November 2015. RESULTS: Six patients were diagnosed with AGC with DIC (1...
January 2017: Anticancer Research
https://www.readbyqxmd.com/read/28011026/experimental-modeling-of-thaw-lake-water-evolution-in-discontinuous-permafrost-zone-role-of-peat-lichen-leaching-and-ground-fire
#20
Rinat M Manasypov, Liudmila S Shirokova, Oleg S Pokrovsky
Thaw of frozen peat in discontinuous permafrost zone produces a significant number of thermokarst lakes, which are known to contribute to Green House Gases (GHG) emission in the atmosphere. In palsa peatland of western Siberia, the thermokarst lake formation includes soil subsidences, lichen submergence and peat abrasion, leading to lateral spreading of the lake border, often intensified by ground fires. Mesocosm experiments were conducted during 3weeks on two thermokarst lake waters interacting in 30-L tanks with surface horizon of peat, the dominant ground vegetation (lichen Cladonia sp...
December 20, 2016: Science of the Total Environment
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