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Hyperglycemia exacerbates ischemic stroke outcome independent of platelet glucose uptake.
CONCLUSION: Hyperglycemia aggravates ischemic stroke outcome independent of platelet glucose uptake. Furthermore, we demonstrated that hyperglycemia primes procoagulant platelet formation. This underlines the therapeutic potential for strategies targeting procoagulant platelet formation for the treatment of acute ischemic stroke. PMID: 33118271 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - October 28, 2020 Category: Hematology Authors: Denorme F, Portier I, Kosaka Y, Campbell RA Tags: J Thromb Haemost Source Type: research

Modulators of platelet function in aging.
Authors: Iyer KS, Dayal S Abstract Platelets are small, anucleated effector cells that play an important role in linking the hemostatic and inflammatory processes in the body. Platelet function is known to be altered under various inflammatory conditions including aging. A gain in platelet function during aging can increase the risk of thrombotic events, such as stroke and acute myocardial infarction. Anti-platelet therapy is designed to reduce risk of serious cerebrovascular and cardiovascular events, but the adverse consequences of therapy, such as risk for bleeding increases with aging as well. Age-associated co...
Source: Platelets - September 18, 2019 Category: Hematology Tags: Platelets Source Type: research

Enhanced activity of ADAMTS13 variant (R568K/F592Y/R660K/Y661F/Y665F) against platelet agglutination in vitro and in a murine model of acute ischaemic stroke.
CONCLUSION: The limited proteolytic activity of WT ADAMTS13 in in vitro models of arterial thrombosis suggests an in vivo requirement for conformational activation. The enhanced activity of the GoF ADAMTS13 variant translates to a more pronounced protective effect in experimental stroke. This article is protected by copyright. All rights reserved. PMID: 30152919 [PubMed - as supplied by publisher]
Source: Thrombosis and Haemostasis - August 28, 2018 Category: Hematology Authors: South K, Denorme F, Salles-Crawley II, De Meyer SF, Lane DA Tags: J Thromb Haemost Source Type: research

Aggregation is impaired in starved platelets due to enhanced autophagy and cellular energy depletion.
Authors: Paul M, Hemshekhar M, Kemparaju K, Girish KS Abstract Platelet hyperactivity is the hallmark of thrombosis and hemostasis disorders including atherosclerosis, diabetes, stroke, arthritis, and cancer causing significant mortality and morbidity. Therefore, regulating platelet hyperactivity is an ever growing interest. Very recently, basal autophagic process has been demonstrated to be essential for normal functioning of platelets. However, autophagy can be elevated above basal level under conditions like starvation, and how platelets respond in these settings remains to be elucidative. Therefore, in this stu...
Source: Platelets - May 30, 2018 Category: Hematology Tags: Platelets Source Type: research

Investigating the Mechanisms of Methotrexate Neurotoxicity in Patients With Childhood Leukemia and Long-Term Survivors
Adverse neurological events are common (4-20%) during treatment for pediatric acute lymphoblastic leukaemia (ALL) and include seizures, stroke like syndrome and leukoencephalopathy. In addition, chronic neurotoxicity is emerging as a worrying late effect of treatment with long-term survivors experiencing decreased executive function, processing speed and memory function. Survivors are also at increased risk of experiencing learning difficulties, social withdrawal issues and inattention hyperactivity disorders.
Source: Clinical Lymphoma, Myeloma and Leukemia - September 1, 2017 Category: Hematology Authors: Victoria Forster, Jane Carr-Wilkinson, Deborah Tweddle, Sirintra Nakjang, Sanaa Choufani, Rosanna Weksberg, Frederik van Delft Source Type: research

Anti-apoptotic role of sonic hedgehog on blood platelets
Sonic hedgehog (Shh) is an essential morphogen involved in vertebrate organogenesis. Perturbation of Hh signaling is associated with pathological consequences like tumor formation and chronic lung fibrosis. Platelets are highly sensitive circulating blood cells responsible for hemostasis, while hyperactivity of these cells lead to morbidities like ischemic heart diseases and stroke. Despite being terminally differentiated cells with life span of 10-12 days, platelets have recently been shown to respond to Wnt ligand, another developmental signal similar to Shh.
Source: Thrombosis Research - September 25, 2014 Category: Hematology Authors: Sharda Kumari, Susheel N. Chaurasia, Kailash Kumar, Debabrata Dash Tags: Regular Article Source Type: research