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https://www.readbyqxmd.com/read/29456511/p2y-12-receptors-in-tumorigenesis-and-metastasis
#1
REVIEW
Patrizia Ballerini, Melania Dovizio, Annalisa Bruno, Stefania Tacconelli, Paola Patrignani
Platelets, beyond their role in hemostasis and thrombosis, may sustain tumorigenesis and metastasis. These effects may occur via direct interaction of platelets with cancer and stromal cells and by the release of several platelet products. Platelets and tumor cells release several bioactive molecules among which a great amount of adenosine triphosphate (ATP) and adenosine diphosphate (ADP). ADP is also formed extracellularly from ATP breakdown by the ecto-nucleoside-triphosphate-diphosphohydrolases. Under ATP and ADP stimulation the purinergic P2Y1 receptor (R) initiates platelet activation followed by the ADP-P2Y12 R-mediated amplification...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29455568/effectiveness-and-safety-of-lmwh-treatment-in-patients-with-cancer-diagnosed-with-non-high-risk-venous-thromboembolism-turkish-observational-study-trebeca
#2
Ersin Ozaslan, Metin Ozkan, Irfan Cicin, Mustafa Benekli, Murat Kocer, Mukremin Uysal, Berna Oksuzoglu, Abdurrahman Isikdogan, Erdem Cubukcu, Emin T Elkiran, Faysal Dane, Mehmet Aliustaoglu, Alper Sevinc, Aziz Karaoglu, Arife Ulas, Gamze Gokoz-Dogu
We compared the efficacy and safety of low-molecular-weight heparins (LMWHs) in patients with cancer who are at low risk of venous thromboembolism (VTE). Patients were treated by medical oncologists in Turkey at 15 sites, where they were enrolled and followed up for a period of 12 months. Due to the study design, there was no specific treatment protocol for LMWH. Primary end points were efficacy and the time to change in VTE status. Of the included 250 patients, 239 (95.6%), 176 (70.4%), 130 (52.0%), and 91 (36...
January 1, 2018: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29437578/tissue-factor-an-essential-mediator-of-hemostasis-and-trigger-of-thrombosis
#3
REVIEW
Steven P Grover, Nigel Mackman
Tissue factor (TF) is the high-affinity receptor and cofactor for FVII/VIIa. The TF-FVIIa complex is the primary initiator of blood coagulation and plays an essential role in hemostasis. TF is expressed on perivascular and epithelial cells at organ and body surfaces where it forms a hemostatic barrier. TF also provides additional hemostatic protection to vital organs, such as the brain, lung, and heart. Under pathological conditions, TF can trigger both arterial and venous thrombosis. For instance, atherosclerosis plaques contain high levels of TF on macrophage foam cells and microvesicles that drives thrombus formation after plaque rupture...
February 8, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29436605/novel-iridium-iii-%C3%A2-derived-organometallic-compound-for-the-inhibition-of-human-platelet-activation
#4
Kou-Gi Shyu, Marappan Velusamy, Chih-Wei Hsia, Chih-Hao Yang, Chih-Hsuan Hsia, Duen-Suey Chou, Thanasekaran Jayakumar, Joen-Rong Sheu, Jiun-Yi Li
Since cisplatin achieved clinical success, transition metal platinum (Pt) drugs have been effectively used for the treatment of cancer. Iridium (Ir) compounds are considered to be potential alternatives to Pt compounds, as they possess promising anticancer effects with minor side effects. Platelet activation is associated with the metastasis and progression of cancer, and also with arterial thrombosis. Therefore, it is necessary to develop novel, effective antithrombotic agents. An Ir (III)‑derived complex, [Ir (Cp*) 1‑(2‑pyridyl)‑3‑(3‑methoxyphenyl)imidazo[1,5‑a]pyridine Cl]BF4 (Ir‑3), was developed as a novel antiplatelet drug...
February 7, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29432642/classification-of-tongue-cancer-resection-and-treatment-algorithm
#5
Giuditta Mannelli, Francesco Arcuri, Tommaso Agostini, Marco Innocenti, Mirco Raffaini, Giuseppe Spinelli
BACKGROUND AND OBJECTIVES: Reconstruction of tongue cancer defects is challenging due to the complex anatomy and physiology of the tongue. Here, we classify patterns of tongue tissue loss and describe a treatment algorithm for achieving good functional and oncologic outcomes. METHODS: We retrospectively reviewed 50 tongue squamous-cell carcinomas surgically treated between January 2010-June 2015. Cancer resection and tongue reconstruction were stratified according to the missing anatomical subunits...
February 12, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29431737/a-dna-nanorobot-functions-as-a-cancer-therapeutic-in-response-to-a-molecular-trigger-in-vivo
#6
Suping Li, Qiao Jiang, Shaoli Liu, Yinlong Zhang, Yanhua Tian, Chen Song, Jing Wang, Yiguo Zou, Gregory J Anderson, Jing-Yan Han, Yung Chang, Yan Liu, Chen Zhang, Liang Chen, Guangbiao Zhou, Guangjun Nie, Hao Yan, Baoquan Ding, Yuliang Zhao
Nanoscale robots have potential as intelligent drug delivery systems that respond to molecular triggers. Using DNA origami we constructed an autonomous DNA robot programmed to transport payloads and present them specifically in tumors. Our nanorobot is functionalized on the outside with a DNA aptamer that binds nucleolin, a protein specifically expressed on tumor-associated endothelial cells, and the blood coagulation protease thrombin within its inner cavity. The nucleolin-targeting aptamer serves both as a targeting domain and as a molecular trigger for the mechanical opening of the DNA nanorobot...
February 12, 2018: Nature Biotechnology
https://www.readbyqxmd.com/read/29429053/program-of-gastrointestinal-rehabilitation-and-early-postoperative-enteral-nutrition-a-prospective-study
#7
Frank Daniel Martos-Benítez, Anarelys Gutiérrez-Noyola, Andrés Soto-García, Iraida González-Martínez, Ilionanys Betancourt-Plaza
Nutritional depletion is commonly observed in patients undergoing surgical treatment for a gastrointestinal malignancy. An appropriate nutritional intervention could be associated with improved postoperative outcomes. The study was aimed to determine the effect of a program of gastrointestinal rehabilitation and early postoperative enteral nutrition upon complications and clinical outcomes in patients who experienced gastrointestinal surgery for cancer. This is a prospective study (2013 January-2015 December) of 465 consecutive patients submitted to gastrointestinal surgery for cancer and admitted to an Oncological Intensive Care Unit...
February 10, 2018: Updates in Surgery
https://www.readbyqxmd.com/read/29425537/-superior-vena-cava-thrombosis-or-stricture-secondary-to-implanted-central-venous-access-six-cases-of-endovascular-and-direct-surgical-treatment-in-cancer-patients
#8
J M Fichelle, V Baissas, S Salvi, J N Fabiani
Superior vena cava (SVC) stenosis or thrombosis is a well-known complication of central venous catheterization for endocavitary treatments, hemodialysis, or chemotherapy. In cancer patients, these SVC lesions are often symptomatic due to intimal damage and chemotherapy toxicity. We report our experience with six patients treated between 2007 and 2012 via an endovascular approach (n=5) or a direct surgical approach (n=1). All patients had SVC syndrome with facial edema, headache and upper limb edema. In three cases, the catheter was in place when the clinical symptoms occurred...
February 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29423705/chemotherapeutic-agents-and-the-risk-of-ischemia-and-arterial-thrombosis
#9
REVIEW
Saamir A Hassan, Nicolas Palaskas, Peter Kim, Cezar Iliescu, Juan Lopez-Mattei, Elie Mouhayar, Rohit Mougdil, Kara Thompson, Jose Banchs, Syed Wamique Yusuf
PURPOSE OF REVIEW: Numerous chemotherapeutic agents have been associated with the development of ischemia and arterial thrombosis. As newer therapies have been developed to treat cancer, some of these chemotherapy drugs have been implicated in the development of vascular disease. In this review, we will summarize the most common chemotherapeutic drug classes that may play a role in the development of ischemic heart disease. RECENT FINDINGS: Angiogenesis inhibitors, alkylating agents, antimetabolites, antimicrotubules, and proteasome inhibitors have a number of cardiovascular toxicities...
February 8, 2018: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/29420429/elevated-venous-thromboembolism-risk-following-colectomy-for-ibd-is-equal-to-those-for-colorectal-cancer-for-ninety-days-after-surgery
#10
Fadwa Ali, Sadeer G Al-Kindi, Jacqueline J Blank, Carrie Y Peterson, Kirk A Ludwig, Timothy J Ridolfi
BACKGROUND: The risk of postoperative venous thromboembolism is high in patients with colon cancer and IBD. Although The American Society of Colon and Rectal Surgeons suggests posthospital prophylaxis after surgery in patients with colon cancer, there are no such recommendations for patients with IBD. OBJECTIVE: This study aims to analyze the incidence and risk factors for postoperative venous thromboembolism. DESIGN: This was a retrospective review using the Explorys platform...
March 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29420366/endoscopic-ultrasound-guided-fine-needle-aspiration-of-portal-vein-thrombosis-in-patients-with-chronic-liver-disease-and-suspicion-of-hepatocellular-carcinoma
#11
Antonio Z Gimeno Garcia, Jose R Aparicio, Angel Barturen, Miguel Moreno, David Nicolas-Perez, Enrique Quintero
BACKGROUND: Differentiation between benign and malignant portal vein thrombosis (PVT) in the setting of a hepatocellular carcinoma (HCC) is of paramount importance. Histological analysis is usually not carried out because of potential severe side effects of the percutaneous approach. Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) may be safer and may guide the clinical management of patients with HCC. OBJECTIVE: To describe the feasibility of the EUS-FNA in a series of patients with HCC and PVT...
February 7, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29420084/meeting-report-eurog20-meeting-on-cancer-associated-thrombosis-cat-bergamo-italy-7-april-2016
#12
I Elalamy, A Falanga
The EuroG20 meeting on cancer-associated thrombosis (CAT) convened in Bergamo, Italy on 7 April 2016 to discuss a selection of controversial topics in CAT management. This satellite meeting besides ICTHIC in Bergamo has the objective to propose an European Guidance on CAT in various complex situations where evidence-based guidelines are lacking, driven by eminence-based thoughts of 20 experts and key opinion leaders in thrombosis from EU area and 8 experts from the rest of the world.
February 8, 2018: Cancer Investigation
https://www.readbyqxmd.com/read/29419408/distinct-pathogenesis-of-pancreatic-cancer-microvesicle-associated-venous-thrombosis-identifies-new-antithrombotic-targets-in-vivo
#13
Konstantin Stark, Irene Schubert, Urjita Joshi, Badr Kilani, Parandis Hoseinpour, Manovriti Thakur, Petra Grünauer, Susanne Pfeiler, Tobias Schmidergall, Sven Stockhausen, Markus Bäumer, Sue Chandraratne, Marie-Luise von Brühl, Michael Lorenz, Raffaele Coletti, Sven Reese, Iina Laitinen, Sonja Maria Wörmann, Hana Algül, Christiane J Bruns, Jerry Ware, Nigel Mackman, Bernd Engelmann, Steffen Massberg
OBJECTIVE: Cancer patients are at high risk of developing deep venous thrombosis (DVT) and venous thromboembolism, a leading cause of mortality in this population. However, it is largely unclear how malignant tumors drive the prothrombotic cascade culminating in DVT. APPROACH AND RESULTS: Here, we addressed the pathophysiology of malignant DVT compared with nonmalignant DVT and focused on the role of tumor microvesicles as potential targets to prevent cancer-associated DVT...
February 1, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29417408/comparative-outcomes-of-thrombocytopenic-acute-leukemic-patients-with-venous-thromboembolism-at-a-comprehensive-cancer-center
#14
Maliha Khan, Travis M Cox, Mohammed Nassif, Mohanad A Alzubaidi, Naveen Garg, Wei Qiao, Fleur M Aung, Thein Hlaing Oo, Cristhiam M Rojas-Hernandez
Patients with hematological malignancies often have severe thrombocytopenia, which poses problems when making thrombosis management decisions. A retrospective study was conducted to analyze the clinical outcomes associated with different management options in acute leukemic patients with thrombocytopenia (≤ 50 × 109/L) following an acute venous thromboembolic event. A total of 74 patients were divided into three treatment groups: observation only (n = 30); anticoagulation (n = 23); or inferior vena cava placement (n = 21)...
February 7, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29417289/thromboprophylaxis-and-the-route-of-administration-of-chemotherapy-in-testicular-cancer-patients-in-german-speaking-countries
#15
Tim Nestler, Johannes Huber, Adrienne M Laury, Hendrik Isbarn, Axel Heidenreich, Hans U Schmelz, Christian G Ruf
PURPOSE: Due to the excellent cure rates for testicular cancer (TC), focus has shifted towards decreasing therapy-related morbidities. Thrombosis is a frequent complication of cisplatin chemotherapy. Furthermore, the optimal route of administration for chemotherapy is still under debate. The purpose of this study was to assess the patterns of care concerning dosing and duration of thromboprophylaxis currently utilized in TC patients in German-speaking countries as well as the route of chemotherapy administration...
February 7, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29414648/oleamide-suppresses-inflammatory-responses-in-lps-induced-raw264-7-murine-macrophages-and-alleviates-paw-edema-in-a-carrageenan-induced-inflammatory-rat-model
#16
Sung-Min Moon, Seul Ah Lee, Joon Ho Hong, Jae-Sung Kim, Do Kyung Kim, Chun Sung Kim
Oleamide compounds purified from green algae have been used for the prevention and treatment of atherosclerosis, thrombosis, arthritis, and cancer. They function through their metabolic conversion into prostaglandins, thromboxanes, and leukotrienes. However, the actual mechanism of action has not been well characterized. To investigate the underlying anti-inflammatory activity and associated mechanisms, oleamide purified from Codium fragile was studied using RAW264.7 murine macrophages and a carrageenan-induced inflammatory rat model...
January 30, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29407633/the-lectin-pathway-and-coagulation-in-lung-cancer-patients-undergoing-lobectomy-a-randomised-controlled-trial
#17
Julie Brogaard Larsen, Anne Troldborg, Thomas Decker Christensen, Christine Lodberg Hvas, Steffen Thiel, Anne-Mette Hvas
BACKGROUND: Lectin pathway proteases activate coagulation and may theoretically play a role in the increased thrombosis risk in cancer, which is especially high during surgery. AIMS: To investigate lectin pathway proteins during lung cancer surgery, the influence of low molecular weight heparin (LMWH) on lectin pathway proteins, and correlations between lectin pathway proteins and coagulation. METHODS: Fifty lung cancer patients undergoing video-assisted thoracoscopic surgery lobectomy were randomised to LMWH, n = 26, or no anticoagulant (control), n = 24...
January 30, 2018: Thrombosis Research
https://www.readbyqxmd.com/read/29405046/anti-vegf-agents-and-the-risk-of-arteriothrombotic-events
#18
Marco A Zarbin
Blockade of vascular endothelial growth factor (VEGF) signaling, whether via sequestration of free VEGF or via inhibition of the tyrosine kinases activated by VEGF, is associated with decreased nitric oxide (NO) and prostaglandin-I 2 (PG-I 2) production along with vascular endothelial cell death. Systemic administration of drugs that block VEGF signaling (eg, for cancer treatment) is associated with systemic complications such as hypertension and thrombosis. Evidence regarding the risk of systemic serious adverse events after intravitreal injection of anti-VEGF agents in patients with diabetic macular edema or neovascular age-related macular degeneration is inconsistent, in part because of study design limitations (eg, bias of ascertainment through strict enrollment criteria and/or inadequate power to identify the risk of low frequency events)...
February 1, 2018: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/29404876/thrombosis-in-philadelphia-negative-classical-myeloproliferative-neoplasms-a-narrative-review-on-epidemiology-risk-assessment-and-pathophysiologic-mechanisms
#19
REVIEW
Somedeb Ball, Kyaw Zin Thein, Abhishek Maiti, Kenneth Nugent
Thrombosis is common in cancer patients and is associated with increased morbidity and mortality. Myeloproliferative neoplasms (MPN) are common malignancies in elderly individuals and are known for a high incidence of thrombotic complications. Different risk factors have been identified in studies, and risk models have been developed to identify patients with MPN at higher risk for thrombosis. Several pathophysiological mechanisms help explain the increased likelihood of thrombosis in these patients. Factors, such as leukocyte and platelet activation leading to the formation of leukocyte-platelet aggregates, activation of the coagulation cascade by microparticles, high levels of inflammatory cytokines, and endothelial dysfunction have a crucial role in thrombosis in MPN patients...
February 6, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29403615/deep-venous-thrombosis-in-elderly-patients-as-a-surgical-emergency-at-king-abdulaziz-university-hospital-jeddah-saudi-arabia
#20
Reham Muqbil Alanazi, Ashjan Aqeel Alanazi, Ibtihaj Qaseem Alenezi, Anwar Matar Alsulobi, Abdulrhman Fahad Almutairy, Wafaa Mohamed Bakr Ali, Mohammed Abdullah Alanazi, Mohammed Abdullah Alkhidhr, Nagah Mohamed Abo Elfetoh, Abdalla Mohamed Bakr Ali
Background: Deep venous thrombosis (DVT) is a condition that occurs frequently among surgical, as well as acutely ill hospitalized medical patients, and is responsible for significant morbidity and mortality in hospitalized patients. Risk factors include older age, surgery and immobilization (as with bed rest, orthopedic casts, and sitting on long flights. Objective: This study was conducted to identify the frequency and factors associated with occurrence of DVT among elderly patients referred to King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia...
November 2017: Electronic Physician
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