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"coagulation" and"endothelial cell"

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https://www.readbyqxmd.com/read/29126301/coagulation-testing-in-the-core-laboratory
#1
William E Winter, Sherri D Flax, Neil S Harris
Primary hemostasis begins with endothelial injury. VWF, produced by endothelial cells, binds to platelets and links them to subendothelial collagen. Platelet-derived ADP and thromboxane activate non-adhered platelets via their GPIIb/IIIa receptors, allowing these platelets to participate in platelet aggregation. Secondary hemostasis is initiated with the binding of factor VII to extravascular tissue factor (TF). Factors II, VII, IX and X are vitamin K-dependent factors. The role of vitamin K is to assist in the addition of gamma carboxylate groups to glutamic acids in the "GLA" domains of these factors...
November 8, 2017: Laboratory Medicine
https://www.readbyqxmd.com/read/29115584/apolipoprotein-c-iii-in-the-high-density-lipoprotein-proteome-of-cerebral-lacunar-infarction-patients-impairs-its-anti-inflammatory-function
#2
Pu Lv, Mingming Zhao, Yuanyuan Liu, Haiqiang Jin, Wei Cui, Chenghe Fan, Yuming Teng, Lemin Zheng, Yining Huang
High-density lipoprotein (HDL) proteomic study has identified substantial changes associated with various disease states. In the current study, the HDL proteomes in patients with cerebral lacunar infarction (LACI) and control subjects were investigated. A total of 12 LACI patients without evident large vessel occlusions and 12 controls were enrolled in the study. The HDL fraction from each sample was isolated from the plasma by ultracentrifugation. The protemics of the HDL were investigated using nano liquid chromatography coupled to tandem mass spectrometry...
October 27, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29112156/effects-of-lonomia-obliqua-venom-on-vascular-smooth-muscle-cells-contribution-of-nadph-oxidase-derived-reactive-oxygen-species
#3
João Alfredo Moraes, Genilson Rodrigues, Vany Nascimento-Silva, Mariana Renovato-Martins, Markus Berger, Jorge Almeida Guimarães, Christina Barja-Fidalgo
Envenomation caused by human contact with the caterpillar Lonomia is characterized by deleterious effects on coagulation and patency of blood vessels. The cellular effects induced by Lonomia obliqua venom highlights its capacity to activate endothelial cells, leading to a proinflammatory phenotype. Having more knowledge about the mechanisms involved in envenomation may contribute to better treatment. We aimed to evaluate the effects of Lonomia obliqua caterpillar bristle extract (LOCBE) on vascular smooth muscle cells (VSMC)...
November 7, 2017: Toxins
https://www.readbyqxmd.com/read/29103803/cd39-and-cd73-activity-are-protective-in-a-mouse-model-of-antiphospholipid-antibody-induced-miscarriages
#4
Anushka N Samudra, Karen M Dwyer, Carly Selan, Susanna Freddi, Lisa Murray-Segal, Mandana Nikpour, Michael J Hickey, Karlheinz Peter, Simon C Robson, Maithili Sashindranath, Peter J Cowan, Harshal H Nandurkar
OBJECTIVE: Antiphospholipid syndrome (APS) is a systemic autoimmune disorder of young adults associated with devastating pregnancy complications (recurrent miscarriages, preeclampsia and low birth weight) and vascular complications including thrombosis. The key components implicated in pathogenesis of APS are the complement cascade and tissue factor (TF) activity causing inflammation and coagulation. Purinergic signalling involving catabolism of ATP to adenosine by cell-surface enzymes CD39 and CD73 has anti-inflammatory and anti-thrombotic effects...
November 2, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29102925/role-for-neutrophil-extracellular-traps-nets-and-platelet-aggregation-in-early-sepsis-induced-hepatic-dysfunction
#5
Kentaro Sakurai, Tomoharu Miyashita, Mitsuyoshi Okazaki, Takahisa Yamaguchi, Yoshinao Ohbatake, Shinichi Nakanuma, Koichi Okamoto, Seisho Sakai, Jun Kinoshita, Isamu Makino, Keishi Nakamura, Hironori Hayashi, Katsunobu Oyama, Hidehiro Tajima, Hiroyuki Takamura, Itasu Ninomiya, Sachio Fushida, Kenichi Harada, John W Harmon, Tetsuo Ohta
BACKGROUND/AIM: Severe sepsis is associated with high morbidity and mortality rates. Inflammation and coagulation play pivotal roles in the pathogenesis of sepsis leading to multiple organ failure, especially in the liver. The aim of the present study was to assess the mechanism from sepsis to liver damage in a mouse model. MATERIALS AND METHODS: We created a sepsis model by injecting lipopolysaccharide (LPS) intraperitoneally in mice. At 0, 6, 12, and 24 h following intraperitoneal injection of LPS, mice were euthanised and analyzed...
November 2017: In Vivo
https://www.readbyqxmd.com/read/29077057/the-role-of-gap-junction-mediated-endothelial-cell-cell-interaction-in-the-crosstalk-between-inflammation-and-blood-coagulation
#6
REVIEW
Takayuki Okamoto, Koji Suzuki
Endothelial cells (ECs) play a pivotal role in the crosstalk between blood coagulation and inflammation. Endothelial cellular dysfunction underlies the development of vascular inflammatory diseases. Recent studies have revealed that aberrant gap junctions (GJs) and connexin (Cx) hemichannels participate in the progression of cardiovascular diseases such as cardiac infarction, hypertension and atherosclerosis. ECs can communicate with adjacent ECs, vascular smooth muscle cells, leukocytes and platelets via GJs and Cx channels...
October 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29055789/in-vitro-studies-on-the-role-of-recombinant-human-soluble-thrombomodulin-in-the-context-of-retinoic-acid-mediated-apl-differentiation-syndrome
#7
Shinsuke Kojima, Chie Nishioka, SungGi Chi, Akihito Yokoyama, Takayuki Ikezoe
Recombinant human soluble thrombomodulin (rTM) is a newly developed anti-coagulant approved for treatment of disseminated intravascular coagulation (DIC) in Japan. rTM exerts anti-inflammatory and cytoprotective functions via its lectin-like and epidermal growth factor-like domains, respectively. In this study, we retrospectively reviewed the treatment of 21 consecutive patients with coagulopathy, complicated by acute promyelocytic leukemia (APL), with all-trans retinoic acid (ATRA) with or without combination with rTM...
October 18, 2017: Leukemia Research
https://www.readbyqxmd.com/read/29040872/highly-elevated-plasma-level-of-von-willebrand-factor-accelerates-the-formation-of-platelet-thrombus-under-high-shear-stress-in-plasma-with-deficient-adamts13-activity
#8
Hideo Yagi, Naoko Yamaguchi, Yasuaki Shida, Mitsuhiko Sugimoto, Kazuo Tubaki, Yoshihiro Fujimura, Masanori Matsumoto
Upshaw-Schulman syndrome (USS) is a thrombo-hemorrhagic disease caused by congenital deficiency of ADAMTS13 due to ADAMTS13 gene mutations. USS is characterized by repeated episodes of thrombocytopenia and microangiopathic hemolytic anemia that respond dramatically to infusions of fresh frozen plasma. There are two phenotypic expressions of USS: one is the early-onset type and the other, the late-onset type, is asymptomatic during childhood with the first bout of thrombotic thrombocytopenic purpura (TTP) developing after adolescence or during adulthood...
October 10, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29039097/in-vitro-assessment-of-nanoparticle-effects-on-blood-coagulation
#9
Timothy M Potter, Jamie C Rodriguez, Barry W Neun, Anna N Ilinskaya, Edward Cedrone, Marina A Dobrovolskaia
Blood clotting is a complex process which involves both cellular and biochemical components. The key cellular players in the blood clotting process are thrombocytes or platelets. Other cells, including leukocytes and endothelial cells, contribute to clotting by expressing the so-called pro-coagulant activity (PCA) complex on their surface. The biochemical component of blood clotting is represented by the plasma coagulation cascade, which includes plasma proteins also known as coagulation factors. The coordinated interaction between platelets, leukocytes, endothelial cells, and plasma coagulation factors is necessary for maintaining hemostasis and for preventing excessive bleeding...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29035553/construction-of-antithrombotic-tissue-engineered-blood-vessel-via-reduced-graphene-oxide-based-dual-enzyme-biomimetic-cascade
#10
Da Huo, Ge Liu, Yanzhao Li, Yuxin Wang, Ge Guan, Mingcan Yang, Keyu Wei, Jingyuan Yang, Lingqin Zeng, Gang Li, Wen Zeng, Chuhong Zhu
Thrombosis is one of the biggest obstacles in the clinical application of small-diameter tissue-engineered blood vessels (TEBVs). The implantation of an unmodified TEBV will lead to platelet aggregation and further activation of the coagulation cascade, in which the high concentration of adenosine diphosphate (ADP) that is released by platelets plays an important role. Inspired by the phenomenon that endothelial cells continuously generate endogenous antiplatelet substances via enzymatic reactions, we designed a reduced graphene oxide (RGO) based dual-enzyme biomimetic cascade to successively convert ADP into adenosine monophosphate (AMP) and AMP into adenosine...
October 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/29034235/coagulofibrinolytic-changes-in-patients-with-post-cardiac-arrest-syndrome
#11
REVIEW
Takeshi Wada
Whole-body ischemia and reperfusion due to cardiac arrest and subsequent return of spontaneous circulation constitute post-cardiac arrest syndrome (PCAS), which consists of four syndromes including systemic ischemia/reperfusion responses and post-cardiac arrest brain injury. The major pathophysiologies underlying systemic ischemia/reperfusion responses are systemic inflammatory response syndrome and increased coagulation, leading to disseminated intravascular coagulation (DIC), which clinically manifests as obstruction of microcirculation and multiple organ dysfunction...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28993062/chronic-spontaneous-urticaria-and-the-extrinsic-coagulation-system
#12
REVIEW
Yuhki Yanase, Shunsuke Takahagi, Michihiro Hide
Chronic spontaneous urticaria (CSU) is a common skin disorder characterized by daily or almost daily recurring skin edema and flare with itch. Recently, the activation of the blood coagulation cascade has been suggested to be involved in CSU, but the trigger of the coagulation cascade remains unclear. In this article, we review recent understanding of the relationship between the pathogenesis of CSU and extrinsic coagulation reactions. In CSU, vascular endothelial cells and eosinophils may play a role as TF-expressing cells for activating the extrinsic coagulation pathway...
October 6, 2017: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/28986851/protocols-to-assess-coagulation-following-in-vitro-infection-with-hemorrhagic-fever-viruses
#13
Melissa L Tursiella, Shannon L Taylor, Connie S Schmaljohn
During the course of infection with a hemorrhagic fever virus (HFV), the checks and balances associated with normal coagulation are perturbed resulting in hemorrhage in severe cases and, in some patients, disseminated intravascular coagulopathy (DIC). While many HFVs have animal models that permit the analyses of systemic coagulopathy, animal infection models do not exist for all HFVs and moreover do not always recapitulate the pathology observed in human tissues. Furthermore, molecular analyses of how coagulation is affected are not always straightforward or practical when using ex-vivo animal-derived samples, thus reinforcing the importance of cell culture studies...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28978854/basic-concept-for-evaluating-coagulation-and-fibrinolysis-data
#14
Teruto Hashiguchi
"Fibrin is insoluble in blood" is the most important concept to accept the coagulation system. Essentially, blood coagulation is a process to convert blood from soluble to insoluble. Fibrinolysis is another process to convert insoluble protein to soluble protein again. The blood coagulation cascade requires calcium ion and efficiently acts on platelet phospholipid membranes. On the other hand, the fibrinolysis system efficiently acts on fibrin. Unlike other vitamin K-dependent coagulation factors, thrombin can be released from the coagulation site to the systemic circulation and has multiple biological effects regulated through thrombin receptors...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28978275/low-immunogenic-endothelial-cells-maintain-morphofunctional-properties-needed-for-tissue-engineering
#15
Skadi Lau, Dorothee Eicke, Marco Carvalho Oliveira, Bettina Wiegmann, Claudia Schrimpf, Axel Haverich, Rainer Blasczyk, Mathias Wilhelmi, Constanςa Figueiredo, Ulrike Böer
The limited availability of native vessels suitable for the application as hemodialysis shunts or bypass material demands new strategies in cardiovascular surgery. Tissue engineered vascular grafts containing autologous cells are considered as ideal vessel replacements due to the low risk of rejection. However, endothelial cells (EC), which are central components of natural blood vessels, are difficult to obtain from elderly patients of poor health. Umbilical cord blood represents a promising alternative source for EC but their allogeneic origin corresponds with the risk of rejection after allotransplantation...
October 5, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28968987/chemotherapy-administration-to-breast-cancer-patients-affects-extracellular-vesicles-thrombogenicity-and-function
#16
Anat Aharon, Anni Sabbah, Shahar Ben-Shaul, Hila Berkovich, David Loven, Benjamin Brenner, Gil Bar-Sela
Breast cancer (BC) is the most prevalent type of malignancy in women. Extracellular vesicles (EVs) are subcellular membrane blebs that include exosomes and microparticles. STUDY AIMS: To elucidate the effects of chemotherapy administration on BC patients' EVs characteristics and their effects on endothelial cells (EC) functions. METHODS: EVs were isolated from the blood samples of 54 BC patients treated by chemotherapy (25 neo-adjuvant, 29 adjuvant) and from 20 healthy women (control group)...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28960464/pde3-inhibitor-attenuates-rat-sinusoidal-obstruction-syndrome-through-inhibition-of-platelet-aggregation-in-disse-s-space
#17
Takashi Miyata, Hidehiro Tajima, Miki Hirata, Shin-Ichi Nakanuma, Isamu Makino, Hironori Hayashi, Katsunobu Oyama, Tomoharu Miyashita, Hiroyuki Takamura, Itasu Ninomiya, Sachio Fushida, Shoichi Iseki, Shin-Ichi Harada, Tomohiko Wakayama, Tetsuo Ohta
BACKGROUND AND AIM: Sinusoidal obstruction syndrome (SOS) is a serious drug-induced liver injury. However, the pathophysiology of the disease remains unclear. This study investigated the effects of cilostazol (CZ), a phosphodiesterase III inhibitor, in a monocrotaline (MCT)-induced rat model of SOS. METHODS: Male Wistar rats were administrated MCT to induce SOS. Rats were divided into control, MCT, and MCT+CZ groups. In the MCT+CZ group, CZ was administered at 48 h, 24 h, and 30 min prior to and 8 h and 24 h after MCT administration...
September 28, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28941176/optimized-human-platelet-lysate-as-novel-basis-for-a-serum-xeno-and-additive-free-corneal-endothelial-cell-and-tissue-culture
#18
Daniel Thieme, Lynn Reuland, Toni Lindl, Friedrich Kruse, Thomas Fuchsluger
INTRODUCTION: The expansion of donor derived corneal endothelial cells is a promising approach for regenerative therapies in corneal diseases. To achieve the best GMP standard the entire cultivation process should be devoid of non-human components. However, so far there is no suitable xeno-free protocol for clinical applications. METHODS: We therefore introduce a processed variant of a platelet lysate for the use in corneal cell and tissue culture based on a GMP-grade thrombocyte concentrate...
September 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28930996/assessment-of-the-anticoagulant-and-anti-inflammatory-properties-of-endothelial-cells-using-3d-cell-culture-and-non-anticoagulated-whole-blood
#19
Riccardo Sfriso, Anjan Bongoni, Yara Banz, Nikolai Klymiuk, Eckhard Wolf, Robert Rieben
In vivo, endothelial cells are crucial for the natural anticoagulation of circulating blood. Consequently, endothelial cell activation leads to blood coagulation. This phenomenon is observed in many clinical situations, like organ transplantation in the presence of pre-formed anti-donor antibodies, including xenotransplantation, as well as in ischemia/reperfusion injury. In order to reduce animal experimentation according to the 3R standards (reduction, replacement and refinement), in vitro models to study the effect of endothelial cell activation on blood coagulation would be highly desirable...
September 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28928850/spiral-computed-tomography-evaluation-of-rabbit-vx2-hepatic-tumors-treated-with-20-khz-ultrasound-and-microbubbles
#20
Zhi-Yong Shen, Chun Liu, Ming-Feng Wu, Hai-Feng Shi, Yu-Feng Zhou, Wei Zhuang, Gan-Lin Xia
The aim of the present study was to explore the therapeutic effect of 20 kHz ultrasound (US) and microbubbles (MBs) on rabbit VX2 liver tumors by spiral computed tomography (CT) scanning. A total of 16 New Zealand rabbits with hepatic VX2 tumors were divided into four groups: Control, MB, low-frequency US and US + MB. The treatment effect was evaluated by spiral CT scanning prior to, during and following treatment (at 0 weeks and the end of 1 and 2 weeks). The tumor growth rate was recorded. The specimens of VX2 tumors were collected for histological examination and transmission electron microscopy (TEM)...
September 2017: Oncology Letters
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