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https://www.readbyqxmd.com/read/28723962/surface-functionalization-specific-binding-of-coagulation-factors-by-zinc-oxide-nanoparticles-delays-coagulation-time-and-reduces-thrombin-generation-potential-in-vitro
#1
Jun-Young Yang, Jiyeong Bae, Ayoung Jung, Seonyeong Park, Seungtae Chung, Jihyun Seok, Hangsik Roh, Youngju Han, Jae-Min Oh, Soojung Sohn, Jayoung Jeong, Wan-Seob Cho
Zinc oxide nanoparticles (ZnO NPs) have many biomedical applications such as chemotherapy agents, vaccine adjuvants, and biosensors but its hemocompatibility is still poorly understood, especially in the event of direct contact of NPs with blood components. Here, we investigated the impact of size and surface functional groups on the platelet homeostasis. ZnO NPs were synthesized in two different sizes (20 and 100 nm) and with three different functional surface groups (pristine, citrate, and L-serine). ZnO NPs were incubated with plasma collected from healthy rats to evaluate the coagulation time, kinetics of thrombin generation, and profile of levels of coagulation factors in the supernatant and coronated onto the ZnO NPs...
2017: PloS One
https://www.readbyqxmd.com/read/28709838/characteristics-of-scrub-typhus-murine-typhus-and-q-fever-among-elderly-patients-prolonged-prothrombin-time-as-a-predictor-for-severity
#2
Ko Chang, Nan-Yao Lee, Wen-Chien Ko, Wei-Ru Lin, Yen-Hsu Chen, Jih-Jin Tsai, Tun-Chieh Chen, Chun-Yu Lin, Ya-Ting Chang, Po-Liang Lu
BACKGROUND/PURPOSE: The clinical manifestations of scrub typhus, murine typhus and acute Q fever in the elderly are not clear. METHODS: We conducted a retrospective study to identify the characteristics of the elderly aged ≥65 years with a comparison group aged 18-64 years among patients with scrub typhus, murine typhus, or acute Q fever who were serologically confirmed at three hospitals in Taiwan during 2002-2011. RESULTS: Among 441 cases, including 187 cases of scrub typhus, 166 acute Q fever, and 88 murine typhus, 68 (15...
June 22, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28698348/determinants-of-mortality-and-prolonged-hospital-stay-among-dengue-patients-attending-tertiary-care-hospital-a-cross-sectional-retrospective-analysis
#3
Tauqeer Hussain Mallhi, Amer Hayat Khan, Azmi Sarriff, Azreen Syazril Adnan, Yusra Habib Khan
OBJECTIVES: Dengue imposes substantial economic, societal and personal burden in terms of hospital stay, morbidity and mortality. Early identification of dengue cases with high propensity of increased hospital stay and death could be of value in isolating patients in need of early interventions. The current study was aimed to determine the significant factors associated with dengue-related prolonged hospitalisation and death. DESIGN: Cross-sectional retrospective study...
July 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28694043/risk-factors-and-clinical-characteristics-of-non-promyelocytic-acute-myeloid-leukemia-of-intracerebral-hemorrhage-a-single-center-study-in-china
#4
Qiaolei Zhang, Xueying Li, Zhangyue Wei, Xiujin Ye, Lixia Zhu, Mixue Xie, Wanzhuo Xie, Jingjing Zhu, Li Li, De Zhou, Yanlong Zheng, Xiudi Yang, Mingyu Zhu, Jianai Sun
BACKGROUND: Although high mortality in patients with acute leukemia (AL) is associated with intracranial hemorrhage (ICH), the clinical features and pathogenesis of AL patients with cerebral hemorrhage are not well known. METHODS: We diagnosed 90 patients with ICH from a total of 1467 patients with non-promyelocytic AL who had been hospitalized in the First Affiliated Hospital of Medical School of Zhejiang University from January 2010 to October 2015. Moreover, the risk factors of ICH death were evaluated...
July 7, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28684918/genotype-and-phenotype-correlation-in-intracranial-hemorrhage-in-neonatal-factor-vii-deficiency-among-thai-children
#5
Chanchai Traivaree, Chalinee Monsereenusorn, Arunotai Meekaewkunchorn, Premsak Laoyookhong, Saranya Suwansingh, Boonchai Boonyawat
Congenital factor VII (FVII) deficiency is a rare inherited coagulopathy. The clinical manifestations and clinical findings vary widely, ranging from asymptomatic to life-threatening bleeding, including intracranial hemorrhage (ICH), with prolonged prothrombin time, normal partial thromboplastin time and normal platelet counts, which are confirmed by the low level of FVII assay. Treatment consists of fresh frozen plasma (FFP), prothrombin complex concentrates (PCCs), and recombinant activated FVII to treat bleeding and prophylactic therapy...
2017: Application of Clinical Genetics
https://www.readbyqxmd.com/read/28681428/routine-coagulation-tests-on-icu-admission-are-associated-with-mortality-in-sepsis-an-observational-study
#6
S Benediktsson, A Frigyesi, T Kander
BACKGROUND: Low platelet count on admission to an intensive care unit (ICU) is associated with increased mortality and is thus included in some severity scoring systems such as the simplified acute physiologic score 3 (SAPS 3); however it is unclear whether other routine coagulation tests also predict mortality. The purpose of this retrospective single-centre study was to investigate whether activated partial thromboplastin time (APTT) or prothrombin time - international normalized ratio (PT-INR) measured on admission to the ICU in patients with severe sepsis or septic shock may be associated with mortality independent of SAPS 3 score...
August 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28664027/chronic-encapsulated-intracerebral-hematoma-endoscopic-removal-as-minimally-invasive-surgery-for-a-patient-with-alcoholic-cirrhosis
#7
Shunsuke Shibao, Takekazu Akiyama, Kazunari Yoshida, Takehito Akiyama
Chronic encapsulated intracerebral hematoma (CEIH) is a rare cerebrovascular disease. Here, we describe a case of a patient with alcoholic cirrhosis and an abnormal coagulation state that was treated with minimally invasive endoscopic hematoma removal. A 54-year-old man presented with a 2-week history of incoherent speech, incontinence, and repeated stumbling. Laboratory analysis showed thrombocytopenia and the prolongation of prothrombin time due to alcoholic cirrhosis. Computed tomography and magnetic resonance imaging showed a large mass in the left parieto-occipital lobe suggesting a hematoma...
April 2017: NMC Case Rep J
https://www.readbyqxmd.com/read/28660462/fabrication-and-characterization-of-chitosan-nanoparticles-and-collagen-loaded-polyurethane-nanocomposite-membrane-coated-with-heparin-for-atrial-septal-defect-asd-closure
#8
Eva Kaiser, Saravana Kumar Jaganathan, Eko Supriyanto, Manikandan Ayyar
Atrial septal defect (ASD) constitutes 30-40% of all congenital heart diseases in adults. The most common complications in the treatment of ASD are embolization of the device and thrombosis formation. In this research, an occluding patch was developed for ASD treatment using a well-known textile technology called electrospinning. For the first time, a cardiovascular occluding patch was fabricated using medical grade polyurethane (PU) loaded with bioactive agents namely chitosan nanoparticles (Cn) and collagen (Co) which is then coated with heparin (Hp)...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28649180/procoagulatory-changes-induced-by-head-up-tilt-test-in-patients-with-syncope-observational-study
#9
Viktor Hamrefors, Artur Fedorowski, Karin Strandberg, Richard Sutton, Nazim Isma
BACKGROUND: Orthostatic hypercoagulability is proposed as a mechanism promoting cardiovascular and thromboembolic events after awakening and during prolonged orthostasis. We evaluated early changes in coagulation biomarkers induced by tilt testing among patients investigated for suspected syncope, aiming to test the hypothesis that orthostatic challenge evokes procoagulatory changes to a different degree according to diagnosis. METHODS: One-hundred-and-seventy-eight consecutive patients (age, 51 ± 21 years; 46% men) were analysed...
2017: Thrombosis Journal
https://www.readbyqxmd.com/read/28599468/clinical-significance-of-coagulation-factors-in-operable-colorectal-cancer
#10
Suee Lee, Seok Jae Huh, Sung Yong Oh, Myeong Seok Koh, Sung-Hyun Kim, Ji Hyun Lee, Jin Young Han, Hong Jo Choi, Su Jin Kim, Hyo-Jin Kim
Abnormal hemostasis in cancer patients has prev iously been studied. The primary objective of the present study was to evaluate the association between preoperative hemostasis markers and clinicopathological parameters, and to identify a hemostasis marker affecting survival in patients following curative resection for colorectal cancer. A total of 170 patients who underwent curative surgery for colorectal carcinoma were evaluated. Preoperative coagulation tests included platelet, prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen, D-dimer and fibrinogen degradation product (FDP)...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28598242/antithrombotic-effect-of-fermented-ophiopogon-japonicus-in-thrombosis-induced-rat-models
#11
Yi-Lin Zhang, Mei-Zhu Xi, Young-Bin Choi, Bog-Hieu Lee
In this study, the antithrombotic and thrombolytic ability of second fermented extract of Ophiopogon japonicus (FEOJ) was verified in thrombosis-induced rats. Thrombosis was induced by oral administration of 2% carrageenan for 4 weeks. Five experimental groups (n = 9/group) involved in the study were control group, thrombosis group, low-dose FEOJ group (2 mL/kg, low-dose Ophiopogon japonicus [LOJ]), middle-dose FEOJ group (6 mL/kg, medium-dose Ophiopogon japonicus [MOJ]), and high-dose FEOJ group (12 mL/kg, high-dose Ophiopogon japonicus [HOJ])...
July 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28588179/childhood-wilson-disease-bangladesh-perspective
#12
M Rukunuzzaman, A B Karim, M Nurullah, F Sultana, M W Mazumder, M A Rahman, S B Billah, F Begum, M Oliullah
Wilson's disease (WD) is an autosomal recessive disorder affecting copper metabolism causing copper induced damage to various organs. In children liver is commonly involved. Central nervous system, eyes, RBC, kidneys, brain and bones may also be affected. Aim of the study is to evaluate clinical & laboratory profile of Wilson's disease in children. This cross sectional descriptive study was conducted at the department of Paediatric Gastroenterology and Nutrition, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh, from January 2011 to December, 2013...
April 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28588173/macrophage-activation-syndrome-in-paediatric-rheumatic-diseases
#13
M I Islam, M K Talukder, M M Islam, K Laila, S A Rahman
Macrophage activation syndrome (MAS) is a potentially fatal complication of rheumatic disorders, which commonly occurs in systemic juvenile idiopathic arthritis (sJIA).This study was carried out with the aims of describing the clinical features, laboratory findings and outcomes of MAS associated with paediatric rheumatic diseases in the Department of Paediatrics, Bangabandhu Sheikh Mujib Medical University (BSMMU) and compare these results with previous studies on MAS. This retrospective study was conducted in the paediatric rheumatology wing of the Department of Paediatrics, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh...
April 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28583531/does-activated-clotting-time-help-to-predict-innate-coagulopathy-in-end-stage-liver-disease-patients
#14
H-W Jeong, H-M Kwon, K-W Jung, Y-J Moon, I-G Jun, J-G Song, G-S Hwang
BACKGROUND: Measuring activated clotting time (ACT) is widely performed to monitor heparin therapy. Regardless of anticoagulant use, ACT is affected by coagulopathies such as coagulation factor deficiency and thrombocytopenia. However, its use in end-stage liver disease (ESLD) with complex coagulopathy is not well characterized. We evaluated whether ACT could be used to detect innate coagulopathy in ESLD patients. METHODS: We retrospectively assessed Hemochron (International Technidyne, Edison, NJ, USA) ACT (FTCA 510, normal range 105-167 seconds) and INTEM clotting time (CT) of rotational thromboelastometry (ROTEM; ROTEM delta, Pentapharm GmbH, Munich, Germany) (100-240 seconds) in 366 liver transplantation (LT) recipients, simultaneously measured before anesthetic induction for LT...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28561744/synthesis-and-thrombin-factor-xa-and-u46619-inhibitory-effects-of-non-amidino-and-amidino-n%C3%A2-thiophenecarbonyl-and-n%C3%A2-tosylanthranilamides
#15
Soo Hyun Lee, Wonhwa Lee, ThiHa Nguyen, Il Soo Um, Jong-Sup Bae, Eunsook Ma
Thrombin (factor IIa) and factor Xa (FXa) are key enzymes at the junction of the intrinsic and extrinsic coagulation pathways and are the most attractive pharmacological targets for the development of novel anticoagulants. Twenty non-amidino N²-thiophencarbonyl- and N²-tosyl anthranilamides 1-20 and six amidino N²-thiophencarbonyl- and N²-tosylanthranilamides 21-26 were synthesized to evaluate their activated partial thromboplastin time (aPTT) and prothrombin time (PT) using human plasma at a concentration of 30 µg/mL in vitro...
May 31, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28552727/disseminated-intravascular-coagulation-caused-by-moojenactivase-a-procoagulant-snake-venom-metalloprotease
#16
Marco A Sartim, Gabriel N Cezarette, Anna L Jacob-Ferreira, Fabiani G Frantz, Lucia H Faccioli, Suely V Sampaio
Snake venom toxins that activate coagulation factors are key players in the process of venom-induced coagulopathy, and account for severe clinical manifestations. The present study applies a variety of biochemical, hematological, and histopathological approaches to broadly investigate the intravascular and systemic effects of moojenactivase (MooA), the first described PIIId subclass metalloprotease isolated from Bothrops sp. venom that activates coagulation factors. MooA induced consumption coagulopathy with high toxic potency, characterized by prolongation of prothrombin and activated partial thromboplastin time, consumption of fibrinogen and the plasma coagulation factors X and II, and thrombocytopenia...
May 25, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28539856/natural-regulatory-anticoagulants-proteins-among-sudanese-patients-with-dengue-virus-infection
#17
Bashir Abdrhman Bashir, Osman Khalaf Allah Saeed
THE COAGULATION SYSTEM: Abnormalities in natural physiologic anticoagulants are observed in dengue infection. Laboratory values such as protein C (PC), protein S (PS), and antithrombin (AT) indicate this problem on the coagulation system in dengue. Recently, an interrelationship between dengue and the levels of natural anticoagulants has been observed. OBJECTIVE: The study conducted to find out the effect of dengue on the natural anticoagulant proteins. METHODS: A case-control study was conducted in Port Sudan Teaching Hospital from February 2013 to June 2014 for 334 cases of dengue caused by dengue virus, 217 (65%) males and 117 (35%) were females along with 101 cases of control 64 (63...
April 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28536722/apixaban-pharmacodynamic-activity-in-umbilical-cord-paediatric-and-adult-plasma
#18
Robert J Yetman, Yu Chen Barrett, Zhaoqing Wang, Robert Adamczyk, Jessie Wang, Eduardo Ramacciotti, Charles Frost
The objective was to characterise apixaban pharmacodynamic (PD) activity in umbilical cord (UC), paediatric, and adult plasma. Plasma was obtained from blood samples from six UC donors, 70 paediatric (neonates [birth-≤1 month], infants [>1-≤6 months], toddlers [>6 months-≤2 years], young children [>2-≤6 years], children [>6-≤12 years], adolescents [>12-≤18 years]), and six adult (19-45 years) subjects. Plasma spiked with apixaban 0 (baseline), 30, or 110 ng/ml was analysed for anti-factor Xa activity, factor X levels, prothrombin time (PT), and modified PT (mPT)...
May 24, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28535134/upper-airway-obstruction-secondary-to-anticoagulant-rodenticide-toxicosis-in-five-dogs
#19
Corinne Lawson, Mauria O'Brien, Maureen McMichael
Five dogs were presented with clinical signs compatible with upper airway obstruction, including stridor, stertor, coughing, gagging, and varying degrees of respiratory distress. All dogs had radiographic findings of soft tissue opacity in the area of the pharynx, larynx, or trachea, and several had narrowing of the tracheal lumen. Coagulation abnormalities (prolonged prothrombin time, activated partial thromboplastin time) were present in the four dogs that underwent testing. Four of five dogs were treated for the coagulopathy, presumably due to anticoagulant rodenticide toxicosis, and survived to discharge...
May 23, 2017: Journal of the American Animal Hospital Association
https://www.readbyqxmd.com/read/28534370/research-on-the-coagulation-function-changes-in-non-small-cell-lung-cancer-patients-and-analysis-of-their-correlation-with-metastasis-and-survival
#20
Yongjun Qi, Jingwei Fu
PURPOSE: To investigate the relationship between coagulation function and prognosis of non-small cell lung cancer (NSCLC) patients. METHODS: 539 patients who were admitted to our hospital for the first time from December 2008 to December 2013 and pathologically diagnosed as NSCLC were enrolled in this study (study group), while 80 healthy persons served as controls (control group). Morning fasting venous blood samples were collected for coagulation function indexes, such as prothrombin time (PT), prothrombin time activity (PTA), international normalized ratio (INR), activated partial thromboplastin time (APTT), fibrinogen (Fib), D-dimer (D-D) and platelet count (PLT) and the coagulation function and survival rate were compared...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
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