Read by QxMD icon Read

Antithrombin 3

Andrea T Obi, Elizabeth Andraska, Yogendra Kanthi, Catherine E Luke, Megan Elfline, Suresh Madathilparambil, Teruna J Siahaan, Farouc A Jaffer, Thomas W Wakefield, Krishnan Raghavendran, Peter K Henke
BACKGROUND/AIMS: Pneumonia is a significant risk factor for the development of venous thrombosis (VT). Cell-adhesion molecules (CAMs) are linked to the pathogenesis of both pneumonia and VT. We hypothesized that remote infection would confer a prothrombogenic milieu via systemic elevation of CAMs. METHODS: Lung injury was induced in wild-type (C57BL/6) mice by lung contusion or intratracheal inoculation with Klebsiella pneumoniae or saline controls. K. pneumoniae-treated mice and controls additionally underwent inferior vena cava (IVC) ligation to generate VT...
October 22, 2016: Journal of Vascular Research
Makoto Ikejiri, Hideo Wada, Norikazu Yamada, Maki Nakamura, Naoki Fujimoto, Kaname Nakatani, Akimasa Matsuda, Yosihito Ogihara, Takeshi Matsumoto, Yuki Kamimoto, Tomoaki Ikeda, Naoyuki Katayama, Masaaki Ito
Congenital thrombophilia which is characterized by deficiencies in proteins such as antithrombin (AT), protein C (PC) and protein S (PS), is a major cause of venous thromboembolism (VTE). A total of 130 patients with VTE were evaluated for congenital thrombophilia based on the activity of AT, PC, or PS. Fifteen VTE patients with congenital AT deficiency (11.5 %), 16 with congenital PC deficiency (12.3 %) and eight with congenital PS deficiency (6.2 %) were diagnosed using DNA analysis. The frequency of congenital AT deficiency was significantly higher in subjects with pregnancy-related and idiopathic VTE than in those with VTE due to other causes, and congenital PC and PS deficiency were frequently associated with idiopathic VTE...
October 20, 2016: International Journal of Hematology
Salvatore Santo Signorelli, Fiore Valerio, Castrogiovanni Davide, Gea Oliveri Conti, Fiore Maria, Morana Ignazio, Ferrante Margherita
Study on 295 consecutive medical patients to evaluate the potential of routine blood tests to identify the risk of deep vein thrombosis (DVT). The tests included in a DVT risk stratification model system were erythrocyte sedimentation rate, antithrombin III, C-reactive protein, D-dimer, and N-terminal pro-brain natriuretic peptide. The DVT risk stratification system was moderately prognostic (area under the curve: 0.838; 95% confidence interval: 0.771-0.904; P < .001), whereas its performance was as follows-sensitivity, 100%; specificity, 20%; positive predictive value, 21%; and negative predictive value, 100%...
October 20, 2016: Angiology
P Pardes-Chavanes, M Afanetti, C Boyer, M Poirée
Intracerebral hemorrhage (ICH) remains a cause of death in hematologic malignancies. Asparaginase represents a key agent in the treatment of acute lymphoblastic leukemia (ALL). The toxicity of asparaginase includes coagulopathy such as thrombotic or bleeding tendency. We report a case of fatal cerebral hemorrhage in a 12-year-old girl treated for ALL. Cerebral hemorrhage occurred after three injections of L-asparaginase. The patient presented with hypofibrinogenemia (0.36g/L), associated with thrombocytopenia (24,000/mm(3))...
October 12, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Hyoung Soo Choi, Chang Won Choi, Heon Min Kim, Hye Won Park
BACKGROUND: While venous thromboembolism (VTE) is uncommon, its incidence is increasing in children. We aimed to evaluate the incidence, risk factors, treatment, and outcome of pediatric VTE cases at a single tertiary hospital in Korea. METHODS: We retrospectively analyzed the records of consecutive pediatric VTE patients admitted to the Seoul National University Bundang Hospital between April 2003 and March 2016. RESULTS: Among 70,462 hospitalizations, 25 pediatric VTE cases were identified (3...
September 2016: Blood Research
Laura Mourino-Alvarez, Montserrat Baldan-Martin, Laura Gonzalez-Calero, Carlos Martinez-Laborde, Tamara Sastre-Oliva, Rafael Moreno-Luna, Luis F Lopez-Almodovar, Pedro L Sanchez, Francisco Fernandez-Aviles, Fernando Vivanco, Luis R Padial, Finn Akerstrom, Gloria Alvarez-Llamas, Fernando de la Cuesta, María G Barderas
BACKGROUND: The most common valve diseases are calcific aortic stenosis (AS) and aortic regurgitation (AR). The former is characterized by thickening of valve leaflets followed by progressive calcification, which produces progressive aortic valve (AV) narrowing, increased pressure afterload on the left ventricle (LV) and subsequent LV hypertrophy. On the other hand, AR is due to malcoaptation of the valve leaflets with resultant diastolic reflux of blood from aorta back to the LV producing volume and pressure overload and progressive LV dilatation...
September 26, 2016: International Journal of Cardiology
Rokea A El-Azhary, Michelle T Patzelt, Robert D McBane, Amy L Weaver, Robert C Albright, Alina D Bridges, Paul L Claus, Mark D P Davis, John J Dillon, Ziad M El-Zoghby, LaTonya J Hickson, Rajiv Kumar, Kathleen A M McCarthy-Fruin, Marian T McEvoy, Mark R Pittelkow, David A Wetter, Amy W Williams, James T McCarthy
OBJECTIVE: To identify coagulation risk factors in patients with calciphylaxis and the relationship between anticoagulation use and overall survival. PATIENTS AND METHODS: Study subjects were 101 patients with calciphylaxis seen at Mayo Clinic from 1999 to September 2014. Data including thrombophilia profiles were extracted from the medical records of each patient. Survival status was determined using patient registration data and the Social Security Death Index...
October 2016: Mayo Clinic Proceedings
Hidesaku Asakura, Hoyu Takahashi, Toshimasa Uchiyama, Yutaka Eguchi, Kohji Okamoto, Kazuo Kawasugi, Seiji Madoiwa, Hideo Wada
Disseminated intravascular coagulation (DIC) is a serious disease that, in the presence of underlying disease, causes persistent, generalized, marked coagulation activation. Early treatment based on an appropriate diagnosis is very important for improving patients' prognosis, to which end diagnostic criteria play a key role. Several criteria have been proposed, but each has its strengths and weaknesses, and improved criteria are needed. Widespread use of coagulofibrinolytic markers has elucidated that the pathology of DIC differs greatly as a function of the underlying disease...
2016: Thrombosis Journal
Yuanyang Zhang, Tie Bo Wu, Bernie J Daigle, Mitchell Cohen, Linda Petzold
BACKGROUND: Trauma is the leading cause of death between the ages of 1 to 44 in the United States. Blood loss is the primary cause of these deaths. The discrimination of states through which patients transition would be helpful in understanding the disease process, and in identification of critical states and appropriate interventions. Even though these states are strongly associated with patients' blood composition data, there has not been a way to directly identify them. Statistical tools such as hidden Markov models can be used to infer the discrete latent states from the blood composition data...
2016: BMC Medical Informatics and Decision Making
Z Yilmaz, O Eralp Inan, M Kocaturk, A T Baykal, O Hacariz, I Hatipoglu, A Tvarijonaviciute, M Cansev, J Ceron, I H Ulus
BACKGROUND: This study aimed to investigate the possible serum protein changes after endotoxin administration in healthy and choline-treated calves using proteomics. These results are expected to contribute to the understanding of the pathophysiological mechanisms of endotoxemia and the beneficial effect of choline administration in this clinical situation. METHODS: Healthy-calves (n = 20) were divided into 4 groups: Control, Choline treated (C), Lipopolysaccharide administered (LPS), and LPS + C...
2016: BMC Veterinary Research
Agnieszka Firszt-Adamczyk, Barbara Ruszkowska-Ciastek, Przemysław Adamczyk, Robert Szafkowski, Mirosława Firszt, Irena Ponikowska, Kristoffer Moe, Iza Iwan-Ziętek, Barbara Góralczyk, Krzysztof Góralczyk, Danuta Rość
BACKGROUND: The most common cause of death among people with obesity are cardiovascular complications as a result of a hypercoagulability state. OBJECTIVES: The purpose of the study was to assess the potential of coagulation system activation depending on the tissue factor and to analyze of the influence of a 3-week low-calorie diet and balneological treatment on selected coagulation parameters in morbidly obese patients. MATERIAL AND METHODS: The study included 36 patients (28 females and 8 males; mean age 46) with the value of BMI > 40 kg/m2...
July 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
J Bartko, C Schoergenhofer, M Schwameis, N Buchtele, J Wojta, G Schabbauer, L Stiebellehner, B Jilma
BACKGROUND: Activation of local and systemic coagulation is a common finding in patients with pneumonia. There is evidence that glucocorticoids have procoagulant activity in the circulation, particularly in the context of inflammation. Effects of glucocorticoids on local pulmonary coagulation have not been investigated yet. OBJECTIVE: A human model of lung inflammation based on the local instillation of endotoxin was used to investigate whether glucocorticoids may alter pulmonary coagulation...
September 13, 2016: Journal of Thrombosis and Haemostasis: JTH
Judicael G Fazavana, Vincent Muczynski, Valerie Proulle, Nikolett Wohner, Olivier D Christophe, Peter J Lenting, Cécile V Denis
BACKGROUND: Recent findings point to activated factor VII (FVIIa) being cleared predominantly (±65% of the injected protein) as part of a complex with the serpin antithrombin. FVIIa/antithrombin complexes are targeted to hepatocytes and liver macrophages. Both cells lines abundantly express LRP1, a scavenger-receptor mediating clearance of protease/serpin complexes. OBJECTIVES: To investigate whether the FVIIa/antithrombin complex is a ligand for LRP1. METHODS: Binding of FVIIa and pre-formed FVIIa/antithrombin complexes to purified LRP1-fragment Cluster-IV (sLRP1-cIV/Fc) and to human & murine macrophages was analyzed...
September 10, 2016: Journal of Thrombosis and Haemostasis: JTH
Rance Nault, Kelly A Fader, Anna K Kopec, Jack R Harkema, Timothy R Zacharewski, James P Luyendyk
Emerging evidence supports a role for environmental chemical exposure in the pathology of non-alcoholic fatty liver disease (NAFLD), a disease process tightly linked to increased activity of the blood coagulation cascade. Exposure of C57BL/6 mice to the persistent environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) recapitulates features of the NAFLD spectrum, including steatosis, hepatic injury, inflammation, and fibrosis. We assessed coagulation cascade activation, and determined the role of the thrombin receptor protease activated receptor-1 (PAR-1) in experimental TCDD-elicited NAFLD...
September 9, 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
Andrea Gerhardt, Rüdiger E Scharf, Ian A Greer, Rainer B Zotz
Venous thromboembolism (VTE) is a leading cause of maternal mortality. Few studies have evaluated the individual risk of gestational VTE associated with heritable thrombophilia and current recommendations for antenatal thromboprophylaxis in women with severe thrombophilia such as homozygous factor V Leiden mutation (FVL) depend on a positive family history of VTE. To better stratify thromboprophylaxis in pregnancy, we aimed to estimate the individual probability (absolute risk) of gestational VTE associated with thrombophilia and whether these risk factors are independent of a family history of VTE in first-degree relatives...
September 9, 2016: Blood
Chuang Xiao, Wu Lian, Lutan Zhou, Na Gao, Li Xu, Jun Chen, Mingyi Wu, Wenlie Peng, Jinhua Zhao
Fucosylated glycosaminoglycan (FG) is a structurally novel glycosaminoglycan derivative, and it has potent anticoagulant activity. Depolymerized FG (dFG) is a selective factor Xase (FXase, FIXa-FVIIIa complex) inhibitor and it has antithrombotic action without major bleeding risks. In this study, we report the effects of dFG-3 (Mw ~14kDa) on the catalysis rates of factor IIa (FIIa), factor Xa (FXa) and factor IXa (FIXa) inhibition by antithrombin (AT), and the kinetic of the interactions between coagulation proteases or inhibitors and dFG-3 were also studied using biolayer interferometry (BLI) technology...
October 2016: Thrombosis Research
Shu Zhu, Yichen Lu, Talid R Sinno, Scott L Diamond
Coagulation kinetics are well established for purified blood proteases or human plasma clotting isotropically. However, less is known about thrombin generation kinetics and transport within blood clots formed under hemodynamic flow. Using microfluidic perfusion (wall shear rate, 200 (s-1)) of corn trypsin inhibitor-treated whole blood over a 250-micron long patch of type I fibrillar collagen/lipidated TF (~ 1 TF molecule/μm(2)), we measured thrombin released from clots using thrombin-antithrombin (TAT) immunoassay...
September 7, 2016: Journal of Biological Chemistry
Nongnuch Sirachainan, Ampaiwan Chuansumrit, Praguywan Kadegasem, Werasak Sasanakul, Pakawan Wongwerawattanakoon, Lalita Mahaklan
Thalassemia intermedia (TI), a non-transfusion dependent thalassemia, is divided into α-thalassemia, such as HbH disease, and β-thalassemia diseases, such as HbE/β(+) thromboembolism (TE) in TI has been mostly reported in β-thalassemia diseases with incidence rates of 3.9-29%. The present study enrolled 60 patients with α-thalassemia intermedia. The control groups were thalassemia major (TM) consisting of 17 patients diagnosed with β-thalassemia diseases, 24 patients diagnosed with splenectomized β-thalassemia diseases and 25 normal subjects...
October 2016: Thrombosis Research
Jan Hartmann, Stacy E Croteau
A surge in therapeutic clinical trials over recent years is paving the way for transformative treatment options for patients with hemophilia. The introduction of recombinant factor concentrates in the early 1990s facilitated the use of prophylactic replacement as standard care for hemophilia rather than on-demand treatment. This has revolutionized health outcomes for hemophilia patients, enabling participation in physical activities and reducing debilitating, chronic joint damage. Challenges of prophylactic factor infusion include the frequency of infusions needed to maintain factor levels greater than 1%, patient adherence, reliable intravenous access, and development of neutralizing alloantibodies ("inhibitors")...
August 26, 2016: American Journal of Hematology
Mineji Hayakawa, Daisuke Kudo, Shinjiro Saito, Shigehiko Uchino, Kazuma Yamakawa, Yusuke Iizuka, Masamitsu Sanui, Kohei Takimoto, Toshihiko Mayumi, Kota Ono, Takeo Azuhata, Fumihito Ito, Shodai Yoshihiro, Katsura Hayakawa, Tsuyoshi Nakashima, Takayuki Ogura, Eiichiro Noda, Yoshihiko Nakamura, Ryosuke Sekine, Yoshiaki Yoshikawa, Motohiro Sekino, Keiko Ueno, Yuko Okuda, Masayuki Watanabe, Akihito Tampo, Nobuyuki Saito, Yuya Kitai, Hiroki Takahashi, Iwao Kobayashi, Yutaka Kondo, Wataru Matsunaga, Sho Nachi, Toru Miike, Hiroshi Takahashi, Shuhei Takauji, Kensuke Umakoshi, Takafumi Todaka, Hiroshi Kodaira, Kohkichi Andoh, Takehiko Kasai, Yoshiaki Iwashita, Hideaki Arai, Masato Murata, Masahiro Yamane, Kazuhiro Shiga, Naoto Hori
Supplemental doses of antithrombin (AT) are widely used to treat sepsis-induced disseminated intravascular coagulation (DIC) in Japan. However, evidence on the benefits of AT supplementation for DIC is insufficient. This multicenter retrospective observational study aimed to clarify the effect of AT supplementation on sepsis-induced DIC using propensity score analyses. Data from 3,195 consecutive adult patients admitted to 42 intensive care units for severe sepsis treatment were retrospectively analyzed; 1,784 patients were diagnosed with DIC (n = 715, AT group; n = 1069, control group)...
August 19, 2016: Shock
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"