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 differe...

introduction: effects of exercise on different body systems, especially cardiovascular and musculoskeletal systems are evidenced. there is a dynamic homeostatic balance between coagulation and fibrinolysis in normal circulation. effect of exercise and training on this homeostatic balance has been studied extensively but there are a few studies with regards to analysis of the effects of training...

Bq II. L. NO55EL T MECHANISMS, the extrinsic and the intrinsic, have been defined whereby in vitro blood coagulation may be initiated. The extrinsic system is initiated by tissue thromboplastin which, in the presence of Factor VII and calcium, activates Factor X (Stuart-Prower factor).’5 The intrinsic system is initiated by foreign surface contact which results in sequential activation of Facto...

Background: Preeclampsia is an idiopathic multisystem disorder specific to human pregnancy and the puerperium and hematological abnormalities may develop in preeclamptic women. This study was designed to determine coagulation parameters in patients with severe preeclampsia in Shiraz, southern Iran. Methods: From 2002 to 2005, coagulation indices including platelet count, prothrombin time (PT), ...

Oral anticoagulant therapy (OAT) calls for continuous control by prothrombin time (PT) test, as the therapeutic range in INR units is very narrow. Warfarin (or coumarin) inhibits coagulation factor synthesis in the liver, but at the same time inactive coagulation factors are formed. The aim here was to measure "active coagulation factors" and inhibition in calibrator kits and patient plasmas by...

Prothrombin time (PT) is the leading test for monitoring oral anticoagulation therapy (OAT). We sought to determine INR taking into account only active coagulation factors FII, FVII and FX without inhibition in patient plasmas and calibrator kits.We measured PT using a combined thromboplastin reagent. The calculation was based on a new PT method, which measures active coagulation factors (F II,...

Coagulation factor replacement can effectively treat or prevent most hemophilia complications, but it is expensive. Although published data describe how to achieve therapeutic goals through cost-effective selection and dosing of replacement products, criteria are not universally known or followed. A review of our institution’s experience revealed overdosing of coagulation factors in the majorit...

introduction: acute traumatic coagulopathy (atc) is defined as having evidence of coagulopathy in patients with severe trauma. the aim of this preliminary study was to assess the prevalence and associated factors of atc in severely traumatic patients presenting to emergency department (ed). methods: in this retrospective cross sectional study, all patients with severe traumatic injury and avail...